技术领域Technical Field
本发明涉及氧化铝生产制备系统领域，特别地，涉及一种自动取样制样装置。The invention relates to the field of aluminum oxide production and preparation systems, and in particular to an automatic sampling and sample preparation device.
背景技术Background Art
铝酸钠溶液是氧化铝生产过程中的主要过程产品，随着氧化铝生产过程朝着自动化方向发展，作为控制氧化铝生产过程中的重要指标铝酸钠溶液主要成分----氧化铝、全碱、苛性碱、碳酸碱等的含量自动化分析成为工业生产中亟待解决的重要问题。Sodium aluminate solution is the main process product in the alumina production process. As the alumina production process develops towards automation, the automated analysis of the contents of the main components of sodium aluminate solution, such as alumina, total alkali, caustic soda, and alkali carbonate, as an important indicator for controlling the alumina production process, has become an important issue that needs to be solved in industrial production.
由于铝酸钠溶液具有高温(130度)、强碱(280g/L)、高固含(150g/L)、易析出、粘稠度高等特性，故而进行铝酸钠溶液分析之前，需要将铝酸钠溶液进行稀释后再进行分析。现有处理时，首先，人工至采样点采取铝酸钠溶液后将其移至化学分析室，然后再采用移液管移取部分铝酸钠溶液至稀释杯进行稀释，稀释完成后的溶液即作为分析仪器的分析溶液。Since sodium aluminate solution has the characteristics of high temperature (130 degrees), strong alkali (280g/L), high solid content (150g/L), easy precipitation, high viscosity, etc., it is necessary to dilute the sodium aluminate solution before analyzing it. In the existing process, first, manually take the sodium aluminate solution at the sampling point and move it to the chemical analysis room, and then use a pipette to transfer part of the sodium aluminate solution to the dilution cup for dilution. The diluted solution is used as the analysis solution of the analysis instrument.
人工至采样点采取铝酸钠溶液至分析室时，一方面，人工取样随意性高，导致后续分析结果不稳定；另一方面，温度的变化影响铝酸钠溶液的稳定性，导致铝酸钠溶液成分的改变；再者,样品在移送过程中由于温度快速降低，溶液中溶质溶解度大大降低导致溶质析出，结疤，进而影响样品分析结果且容易堵塞移液管。人工使用移液管移取溶液进行稀释时，人工每次移取溶液的量不稳定且移液管插入溶液中的位置也不稳定，进而导致样品分析结果不准确。整个操作过程中，由于氧化铝溶液的易结疤、强碱等因素，也给供采样使用的探头的连续性使用带来很大的挑战，从而加剧了分析人员的工作，使得铝酸钠溶液的分析效率非常低。When manually taking sodium aluminate solution from the sampling point to the analysis room, on the one hand, manual sampling is highly arbitrary, resulting in unstable subsequent analysis results; on the other hand, temperature changes affect the stability of the sodium aluminate solution, resulting in changes in the composition of the sodium aluminate solution; furthermore, during the sample transfer process, the temperature drops rapidly, and the solubility of the solute in the solution is greatly reduced, resulting in solute precipitation and scarring, which in turn affects the sample analysis results and easily blocks the pipette. When manually using a pipette to transfer the solution for dilution, the amount of solution transferred each time is unstable and the position of the pipette inserted into the solution is also unstable, resulting in inaccurate sample analysis results. During the entire operation, due to factors such as the easy scarring and strong alkali of the alumina solution, it also poses a great challenge to the continuous use of the probe used for sampling, thereby aggravating the work of the analysts and making the analysis efficiency of the sodium aluminate solution very low.
发明内容Summary of the invention
本发明提供了一种自动取样制样装置，以解决人工取样制样时存在的取样质量不稳定、取样制样效率低的技术问题。The invention provides an automatic sampling and sample preparation device to solve the technical problems of unstable sampling quality and low sampling and sample preparation efficiency existing in manual sampling and sample preparation.
本发明采用的技术方案如下：The technical solution adopted by the present invention is as follows:
一种自动取样制样装置，包括：取样槽、稀释池、驱动器，取样槽与稀释池间隔的设置，还包括取样器和控制器，控制器与驱动器连接，取样器设置在驱动器上，通过控制器在取样槽和稀释池之间可切换的作业。An automatic sampling and sample preparation device comprises: a sampling slot, a dilution tank, a driver, the sampling slot and the dilution tank are spaced apart, and also comprises a sampler and a controller. The controller is connected to the driver, and the sampler is arranged on the driver. The operation between the sampling slot and the dilution tank can be switched by the controller.
进一步地，取样器包括用于插入取样槽中吸取待处理样液的取样针，取样针的上端连接带有容置腔的容置体，容置腔与取样针连通以容留由取样针吸取的待处理样液；容置腔还连通有压力器，压力器与控制器相连，以将待处理样液由取样针吸入容置腔并容留，或者将容留于容置腔的待处理样液经取样针推入稀释槽内；容置体连接有样液监测件，样液监测件与控制器相连，以在容置腔内的待处理样液的量达到预设量时，使控制器控制压力器保压，进而使取样针停止吸取待处理样液。Furthermore, the sampler includes a sampling needle for inserting into the sampling slot to absorb the sample liquid to be processed, the upper end of the sampling needle is connected to a receiving body with a receiving chamber, the receiving chamber is connected to the sampling needle to retain the sample liquid to be processed absorbed by the sampling needle; the receiving chamber is also connected to a pressure device, the pressure device is connected to a controller, so that the sample liquid to be processed is sucked into the receiving chamber by the sampling needle and retained, or the sample liquid to be processed retained in the receiving chamber is pushed into the dilution slot through the sampling needle; the receiving body is connected to a sample liquid monitoring component, the sample liquid monitoring component is connected to the controller, so that when the amount of the sample liquid to be processed in the receiving chamber reaches a preset amount, the controller controls the pressure device to maintain pressure, thereby causing the sampling needle to stop absorbing the sample liquid to be processed.
进一步地，取样针为两端连通的空心管；容置体固定连接于取样针的顶部，容置体的外侧壁上还固定连接有与容置腔连通的连接接头；压力器与连接接头可拆卸式连接。Furthermore, the sampling needle is a hollow tube with two ends connected; the housing body is fixedly connected to the top of the sampling needle, and a connecting joint connected to the housing chamber is also fixedly connected to the outer wall of the housing body; the pressure device is detachably connected to the connecting joint.
进一步地，待处理样液为具有导电性能的导电溶液；取样针和/或容置体为导电体；或者取样针内壁面和/或容置体内设有导电体。Furthermore, the sample liquid to be processed is a conductive solution with conductive properties; the sampling needle and/or the container are conductors; or a conductor is provided on the inner wall surface of the sampling needle and/or the container.
进一步地，样液监测件包括安装于容置体上且与容置体绝缘连接的检测电极，检测电极的第一端伸入容置腔内，检测电极的第二端延伸出容置体并连接有用于导电的第一导线；样液监测件还包括与取样针和/或容置体上可导电部分相连的第二导线，第二导线、第一导线及控制器连接形成导电回路，以在容置腔内的待处理样液与检测电极的第一端接触时导电回路连通，进而使控制器控制压力器保压以使取样针停止吸取待处理样液。Furthermore, the sample liquid monitoring component includes a detection electrode installed on the container and insulated from the container, the first end of the detection electrode extends into the container cavity, and the second end of the detection electrode extends out of the container body and is connected to a first wire for conduction; the sample liquid monitoring component also includes a second wire connected to the sampling needle and/or the conductive part on the container body, the second wire, the first wire and the controller are connected to form a conductive circuit, so that when the sample liquid to be processed in the container cavity contacts the first end of the detection electrode, the conductive circuit is connected, and the controller controls the pressure device to maintain pressure so that the sampling needle stops absorbing the sample liquid to be processed.
进一步地，容置体包括上端开口且具有容置腔的容置体本体，容置体本体的上开口端设有用于封闭容置腔的密封盖，密封盖为绝缘体；取样针的上端由容置体本体的底部插入容置腔内；密封盖上设有安装孔，检测电极竖直插设于安装孔中且与安装孔过盈配合。Furthermore, the container includes a container body with an upper opening and a accommodating cavity, and the upper open end of the container body is provided with a sealing cover for closing the accommodating cavity, and the sealing cover is an insulator; the upper end of the sampling needle is inserted into the accommodating cavity from the bottom of the container body; the sealing cover is provided with a mounting hole, and the detection electrode is vertically inserted in the mounting hole and has an interference fit with the mounting hole.
进一步地，容置体为透明容置体；样液监测件包括连接于容置体外侧壁上的液位传感器，液位传感器与控制器相连，以在容置腔内待处理样液的高度达到设定高度时发送样液达量信号给控制器，控制器根据接收的样液达量信号控制压力器保压以使取样针停止吸取待处理样液。Furthermore, the container is a transparent container; the sample liquid monitoring component includes a liquid level sensor connected to the outer wall of the container, and the liquid level sensor is connected to the controller to send a sample liquid level reaching signal to the controller when the height of the sample liquid to be processed in the container chamber reaches a set height. The controller controls the pressure device to maintain pressure based on the received sample liquid level reaching signal so that the sampling needle stops absorbing the sample liquid to be processed.
进一步地，样液监测件包括设置于容置腔内且透明的透明管、及连接于容置腔侧壁上的液位传感器；取样针的上端伸入透明管内以与透明管连通；液位传感器与控制器相连，以在透明管内待处理样液的高度达到设定高度时发送样液达量信号给控制器，控制器根据接收的样液达量信号控制压力器保压以使取样针停止吸取待处理样液。Furthermore, the sample liquid monitoring component includes a transparent tube that is arranged in the accommodating cavity and is transparent, and a liquid level sensor connected to the side wall of the accommodating cavity; the upper end of the sampling needle extends into the transparent tube to communicate with the transparent tube; the liquid level sensor is connected to the controller to send a sample liquid level reaching signal to the controller when the height of the sample liquid to be processed in the transparent tube reaches a set height, and the controller controls the pressure device to maintain pressure according to the received sample liquid level reaching signal so that the sampling needle stops absorbing the sample liquid to be processed.
进一步地，容置腔与透明管之间、透明管与容置体之间分别设有用于密封的密封件。Furthermore, sealing members for sealing are respectively provided between the accommodating cavity and the transparent tube, and between the transparent tube and the accommodating body.
进一步地，取样槽包括用于容留待处理样液的取样槽本体，取样槽本体内设有用于对容留的待处理样液进行保温的保温装置；取样槽本体的侧壁连接有与其内腔分别连通的采样管和排水管，采样管的输入端与输送总管连通，以将输送总管内的待处理溶液导入取样槽本体，排水管与用于回收待处理样液的回收总管连通，排水管与采样管配合作用以使待处理样液在取样槽本体内实时流动。Furthermore, the sampling trough includes a sampling trough body for retaining the sample liquid to be treated, and the sampling trough body is provided with an insulation device for keeping the retained sample liquid to be treated warm; the side wall of the sampling trough body is connected with a sampling tube and a drain pipe which are respectively connected with its inner cavity, the input end of the sampling tube is connected with the transport main pipe to introduce the solution to be treated in the transport main pipe into the sampling trough body, the drain pipe is connected with the recovery main pipe for recovering the sample liquid to be treated, and the drain pipe cooperates with the sampling tube to make the sample liquid to be treated flow in real time in the sampling trough body.
本发明具有以下有益效果：The present invention has the following beneficial effects:
本发明中，待处理样液指铝酸钠溶液，由于铝酸钠溶液具有高温、易析出的特性，人工操作时，如果铝酸钠溶液飞溅到身体上，容易造成高温灼伤、强碱腐蚀等危害；取样过程中，如果铝酸钠溶液不进行实时流动更新，那么取样过程中由于温度快速降低，铝酸钠溶液的稳定性变低，使得铝酸钠溶液的成分发生改变；另外，使得溶液中溶质溶解度大大降低而导致溶质析出、结疤，最终不仅降低所取铝酸钠溶液的品质且容易导致取样器堵塞，故而本发明的自动取样制样装置中，取样槽不仅用于容留铝酸钠溶液，更重要的是使铝酸钠溶液在取样槽内实时流动以解决该技术问题，保证所取铝酸钠溶液的品质和稳定性，并有效防止取样器堵塞；本发明的自动取样制样装置的整个取样、稀释制样过程全部自动化进行，提高取样制样效率，每次吸取取样槽中同一高度的样液且每次所取样液的量稳定，故而样液取样质量高，样液分析结果稳定、波动较小，并极大降低由于人为因素对样液分析结果的影响。本发明的自动取样制样装置不同于现有的采用控制阀控制样液的进、出，避免了控制阀发生腐蚀、堵塞的现象的存在。In the present invention, the sample liquid to be processed refers to sodium aluminate solution. Since the sodium aluminate solution has the characteristics of high temperature and easy precipitation, if the sodium aluminate solution splashes onto the body during manual operation, it is easy to cause high temperature burns, strong alkali corrosion and other hazards; during the sampling process, if the sodium aluminate solution is not updated in real time, then the temperature drops rapidly during the sampling process, the stability of the sodium aluminate solution becomes low, and the composition of the sodium aluminate solution changes; in addition, the solubility of the solute in the solution is greatly reduced, resulting in solute precipitation and scarring, which ultimately not only reduces the quality of the sodium aluminate solution taken but also easily causes the sampler to be blocked, so the present invention In the automatic sampling and sample preparation device of the invention, the sampling tank is not only used to hold the sodium aluminate solution, but more importantly, the sodium aluminate solution is made to flow in the sampling tank in real time to solve the technical problem, ensure the quality and stability of the sodium aluminate solution, and effectively prevent the sampler from being blocked; the entire sampling and dilution sample preparation process of the automatic sampling and sample preparation device of the invention is fully automated, which improves the sampling and sample preparation efficiency, and each time the sample liquid at the same height in the sampling tank is sucked and the amount of the sample liquid taken each time is stable, so the sample liquid sampling quality is high, the sample liquid analysis results are stable and have small fluctuations, and the influence of human factors on the sample liquid analysis results is greatly reduced. The automatic sampling and sample preparation device of the invention is different from the existing control valve that controls the inlet and outlet of the sample liquid, and avoids the existence of corrosion and blockage of the control valve.
除了上面所描述的目的、特征和优点之外，本发明还有其它的目的、特征和优点。下面将参照图，对本发明作进一步详细的说明。In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
构成本申请的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
图1是本发明优选实施例的自动取样制样装置的结构示意图；FIG1 is a schematic structural diagram of an automatic sampling and sample preparation device according to a preferred embodiment of the present invention;
图2是图1中取样器的第一具体实施例的结构示意图；FIG2 is a schematic structural diagram of a first specific embodiment of the sampler in FIG1 ;
图3是图1中取样器的第二具体实施例的结构示意图；FIG3 is a schematic structural diagram of a second specific embodiment of the sampler in FIG1 ;
图4是图1中取样器的第三具体实施例的结构示意图。FIG. 4 is a schematic structural diagram of a third specific embodiment of the sampler in FIG. 1 .
图例说明Legend
20、取样槽；21、取样槽本体；22、采样管；23、排水管；30、稀释池；40、取样器；41、取样针；42、容置体；420、容置腔；43、压力器；44、样液监测件；441、检测电极；442、第一导线；443、第二导线；444、液位传感器；445、透明管；45、连接接头；46、密封件；50、驱动器。20. Sampling slot; 21. Sampling slot body; 22. Sampling tube; 23. Drain pipe; 30. Dilution tank; 40. Sampler; 41. Sampling needle; 42. Container; 420. Container; 43. Pressure device; 44. Sample liquid monitoring component; 441. Detection electrode; 442. First wire; 443. Second wire; 444. Liquid level sensor; 445. Transparent tube; 45. Connector; 46. Sealing component; 50. Driver.
具体实施方式DETAILED DESCRIPTION
以下结合附图对本发明的实施例进行详细说明，但是本发明可以由下述所限定和覆盖的多种不同方式实施。The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.
参照图1，本发明的优选实施例提供了一种自动取样制样装置，包括：取样槽20、稀释池30、驱动器50，取样槽20与稀释池30间隔的设置，还包括取样器40和控制器，控制器与驱动器50连接，取样器40设置在驱动器50上，通过控制器在取样槽20和稀释池30之间可切换的作业。1 , a preferred embodiment of the present invention provides an automatic sampling and sample preparation device, comprising: a sampling slot 20, a dilution tank 30, and a driver 50. The sampling slot 20 and the dilution tank 30 are spaced apart, and further comprising a sampler 40 and a controller. The controller is connected to the driver 50, and the sampler 40 is arranged on the driver 50. The operation can be switched between the sampling slot 20 and the dilution tank 30 through the controller.
本发明的自动取样制样装置工作时，待处理样液首先由输送总管进入取样槽20中，然后控制器控制驱动器50动作，驱动器50驱动取样器40移动以竖直插入取样槽20中，然后控制器再控制取样器40启动，取样器40吸取预定量的待处理样液，接着控制器再控制驱动器50动作，驱动器50驱动取样器40移动至稀释池30的上方，然后控制器再控制取样器40动作，取样器40将吸取的预定量待处理样液加入稀释池30中，从而使得稀释池30中形成供分析仪器适用的待分析样液。When the automatic sampling and sample preparation device of the present invention is working, the sample liquid to be processed first enters the sampling slot 20 from the transport main pipe, and then the controller controls the driver 50 to operate, and the driver 50 drives the sampler 40 to move to vertically insert into the sampling slot 20, and then the controller controls the sampler 40 to start, and the sampler 40 absorbs a predetermined amount of the sample liquid to be processed, and then the controller controls the driver 50 to operate, and the driver 50 drives the sampler 40 to move above the dilution tank 30, and then the controller controls the sampler 40 to operate, and the sampler 40 adds the absorbed predetermined amount of sample liquid to be processed to the dilution tank 30, so that the dilution tank 30 forms a sample liquid to be analyzed suitable for the analytical instrument.
可选地，在保证待处理样液性状不发生改变的情况下，可以根据实际需求，在稀释池30中将待处理样液按不同比例稀释成满足分析仪分析条件的待分析样液。Optionally, under the condition that the properties of the sample liquid to be processed are ensured not to be changed, the sample liquid to be processed can be diluted in different proportions in the dilution tank 30 according to actual needs to become a sample liquid to be analyzed that meets the analysis conditions of the analyzer.
可选地，稀释池30设置有搅拌装置，用于将稀释剂和待处理样液混匀，得到浓度均匀的待分析样液。Optionally, the dilution tank 30 is provided with a stirring device for mixing the diluent and the sample solution to be processed to obtain a sample solution to be analyzed with uniform concentration.
可选地，稀释池30设置有恒温控制装置，用于使样液保持恒定的温度，避免铝酸钠溶液的成分发生改变。Optionally, the dilution tank 30 is provided with a constant temperature control device for maintaining the sample solution at a constant temperature to avoid changes in the composition of the sodium aluminate solution.
本发明中，待处理样液指铝酸钠溶液，由于铝酸钠溶液具有高温、易析出的特性，取样过程中，如果铝酸钠溶液不进行实时流动，那么取样过程中由于温度快速降低，溶液中溶质溶解度大大降低而导致溶质析出，最终不仅降低所取铝酸钠溶液的品质且容易导致取样器40堵塞，故而本发明的自动取样制样装置中，取样槽20不仅用于容留铝酸钠溶液，更重要的是使铝酸钠溶液在取样槽20内实时流动以解决该存在的技术问题，保证所取铝酸钠溶液的品质和稳定性，并有效防止取样器40堵塞；本发明的自动取样制样装置的整个取样、稀释制样过程全部自动化进行，提高取样制样效率，每次吸取取样槽20中同一高度的样液且每次所取样液的量稳定，故而样液取样质量高，样液分析结果稳定、波动较小，并极大降低由于人为因素对样液分析结果的影响。In the present invention, the sample liquid to be processed refers to the sodium aluminate solution. Since the sodium aluminate solution has the characteristics of high temperature and easy precipitation, if the sodium aluminate solution does not flow in real time during the sampling process, the solubility of the solute in the solution is greatly reduced due to the rapid decrease in temperature during the sampling process, resulting in the precipitation of the solute, which ultimately not only reduces the quality of the sodium aluminate solution taken but also easily causes the sampler 40 to be blocked. Therefore, in the automatic sampling and sample preparation device of the present invention, the sampling tank 20 is not only used to hold the sodium aluminate solution, but more importantly, the sodium aluminate solution is made to flow in real time in the sampling tank 20 to solve the existing technical problems, ensure the quality and stability of the sodium aluminate solution taken, and effectively prevent the sampler 40 from being blocked; the entire sampling and dilution sample preparation process of the automatic sampling and sample preparation device of the present invention is fully automated, thereby improving the sampling and sample preparation efficiency, and each time the sample liquid at the same height in the sampling tank 20 is sucked and the amount of the sample liquid taken each time is stable, so the sample liquid sampling quality is high, the sample liquid analysis result is stable and the fluctuation is small, and the influence of human factors on the sample liquid analysis result is greatly reduced.
可选地，本发明的自动取样制样装置包括：取样槽20，用于容留待处理样液并使待处理样液在取样槽20内实时流动，取样槽20与用于输送待处理样液的输送总管连通。还包括稀释池30，稀释池30用于盛装稀释液，通过稀释池30内的稀释液以对待处理样液进行稀释，进而形成供分析仪器适用的待分析样液。自动取样制样装置还包括用于吸取待处理样液的取样器40、用于驱动取样器40动作的驱动器50、及控制器。取样器40连接于驱动器50上，驱动器50与控制器相连，控制器控制驱动器50驱动取样器40插入取样槽20内，并在取样器40取样完成后再驱动取样器40移动至稀释池30上方。取样器40与控制器相连，控制器控制取样器40在插入取样槽20后启动以吸取预定量的待处理样液，并在移动至稀释池30上方后启动以将吸取的待处理样液滴入稀释池30中。Optionally, the automatic sampling and sample preparation device of the present invention includes: a sampling tank 20, which is used to hold the sample liquid to be processed and make the sample liquid to be processed flow in real time in the sampling tank 20, and the sampling tank 20 is connected to the transport main pipe for transporting the sample liquid to be processed. It also includes a dilution tank 30, which is used to hold a diluent, and the diluent in the dilution tank 30 is used to dilute the sample liquid to be processed, thereby forming a sample liquid to be analyzed suitable for the analytical instrument. The automatic sampling and sample preparation device also includes a sampler 40 for sucking the sample liquid to be processed, a driver 50 for driving the sampler 40 to move, and a controller. The sampler 40 is connected to the driver 50, and the driver 50 is connected to the controller. The controller controls the driver 50 to drive the sampler 40 to insert into the sampling tank 20, and drives the sampler 40 to move above the dilution tank 30 after the sampler 40 completes sampling. The sampler 40 is connected to the controller, and the controller controls the sampler 40 to start after being inserted into the sampling slot 20 to absorb a predetermined amount of the sample liquid to be processed, and to start after moving above the dilution tank 30 to drop the absorbed sample liquid to be processed into the dilution tank 30 .
可选地，如图2-4所示，取样器40包括用于插入取样槽20中吸取待处理样液的取样针41，取样针41的上端连接有带有容置腔420的容置体42，容置腔420与取样针41连通以容留由取样针41吸取的待处理样液。容置腔420还连通有压力器43，压力器43与控制器相连。通过控制器控制压力器43动作产生负压，以将待处理样液由取样针41吸入容置腔420并容留，或者通过控制器控制压力器43动作产生正压，以将容留于容置腔420的待处理样液经取样针41推入稀释槽内。容置体42连接有样液监测件44，样液监测件44与控制器相连，以在容置腔420内的待处理样液的量达到预设量时，使控制器控制压力器43保压，进而使取样针41停止吸取待处理样液。本可选方案的具体实施例中，压力器43为柱塞泵，驱动器50为机械臂，机械臂用于带动取样器40上下左右动作。Optionally, as shown in Fig. 2-4, the sampler 40 includes a sampling needle 41 for inserting into the sampling tank 20 to absorb the sample liquid to be processed, and the upper end of the sampling needle 41 is connected to a receiving body 42 with a receiving chamber 420, and the receiving chamber 420 is connected to the sampling needle 41 to accommodate the sample liquid to be processed absorbed by the sampling needle 41. The receiving chamber 420 is also connected to a pressure device 43, and the pressure device 43 is connected to the controller. The controller controls the pressure device 43 to generate negative pressure, so that the sample liquid to be processed is sucked into the receiving chamber 420 by the sampling needle 41 and retained, or the controller controls the pressure device 43 to generate positive pressure, so that the sample liquid to be processed retained in the receiving chamber 420 is pushed into the dilution tank through the sampling needle 41. The container 42 is connected to a sample liquid monitoring component 44, which is connected to a controller, so that when the amount of the sample liquid to be processed in the container 420 reaches a preset amount, the controller controls the pressure device 43 to maintain pressure, thereby stopping the sampling needle 41 from sucking the sample liquid to be processed. In a specific embodiment of this optional solution, the pressure device 43 is a plunger pump, and the driver 50 is a mechanical arm, which is used to drive the sampler 40 to move up, down, left, and right.
取样器40工作时，当取样针41插入取样槽20的待处理样液中后，控制器控制柱塞泵启动以产生负压，取样槽20中的待处理样液在负压吸力作用下由取样针41进入容置体42的容置腔420中容留，待处理样液吸入容置腔420的过程中，样液监测件44实时监测容置腔420中待处理样液的量，当容置腔420中待处理样液的量达到预设量时，样液监测件44将结果反馈给控制器，控制器控制柱塞泵保压以使取样针41停止吸取待处理样液，待处理样液取样完成；当取样针41位于稀释池30的上方时，控制器控制柱塞泵产生正压，容留于容置腔420中的待处理样液在该正压力作用下经取样针41被推入稀释池30中，以完成待处理样液的制样操作。由于铝酸钠溶液具有高温(130度)、强碱(280g/L)、高固含(150g/L)、易析出、粘稠度高等特性，因此取样部分不适合采用如阀体组成的取样管路结构，其易堵塞且阀体结构中的橡胶件易腐蚀，进而导致阀体失效而不能工作，本发明中，采用机械臂与取样器40组合的取样方式，解决了易析出、高固含样品的定量取样。When the sampler 40 is working, after the sampling needle 41 is inserted into the sample liquid to be processed in the sampling tank 20, the controller controls the plunger pump to start to generate negative pressure. Under the action of negative pressure suction, the sample liquid to be processed in the sampling tank 20 enters the accommodating chamber 420 of the accommodating body 42 through the sampling needle 41 and is retained. During the process of the sample liquid to be processed being sucked into the accommodating chamber 420, the sample liquid monitoring component 44 monitors the amount of the sample liquid to be processed in the accommodating chamber 420 in real time. When the amount of the sample liquid to be processed in the accommodating chamber 420 reaches a preset amount, the sample liquid monitoring component 44 feeds back the result to the controller, and the controller controls the plunger pump to maintain pressure so that the sampling needle 41 stops absorbing the sample liquid to be processed, and the sampling of the sample liquid to be processed is completed; when the sampling needle 41 is located above the dilution tank 30, the controller controls the plunger pump to generate positive pressure, and the sample liquid to be processed retained in the accommodating chamber 420 is pushed into the dilution tank 30 through the sampling needle 41 under the action of the positive pressure to complete the sample preparation operation of the sample liquid to be processed. Since sodium aluminate solution has the characteristics of high temperature (130 degrees), strong alkali (280g/L), high solid content (150g/L), easy precipitation, and high viscosity, the sampling part is not suitable for using a sampling pipeline structure such as a valve body, which is easy to clog and the rubber parts in the valve body structure are easy to corrode, thereby causing the valve body to fail and unable to work. In the present invention, a sampling method combining a mechanical arm and a sampler 40 is adopted to solve the quantitative sampling of samples that are easy to precipitate and have a high solid content.
进一步地，如图2-4所示，取样针41为两端连通的空心管。容置体42固定连接于取样针41的顶部，容置体42的外侧壁上还固定连接有与容置腔420连通的连接接头45。压力器43与连接接头45可拆卸式连接。Further, as shown in Fig. 2-4, the sampling needle 41 is a hollow tube with two ends connected. The housing 42 is fixedly connected to the top of the sampling needle 41, and the outer wall of the housing 42 is also fixedly connected to a connecting joint 45 connected to the housing cavity 420. The pressure device 43 is detachably connected to the connecting joint 45.
本可选方案中，取样器40的第一具体实施例，如图2所示，待处理样液为具有导电性能的导电溶液。取样针41和/或容置体42为导电体。或者取样针41和/或容置体42内设有导电体。样液监测件44包括安装于容置体42上且与容置体42绝缘连接的检测电极441，检测电极441的第一端伸入容置腔420内，检测电极441的第二端延伸出容置体42并连接有用于导电的第一导线442。样液监测件44还包括与取样针41和/或容置体42上可导电部分相连的第二导线443，第二导线443、第一导线442及控制器连接形成导电回路，以在容置腔420内的待处理样液与检测电极441的第一端接触时导电回路连通，进而使控制器控制压力器43保压使取样针41停止吸取待处理样液。取样时，当容置腔420中待处理样液与检测电极441的第一端接触时，由于待处理样液为具有导电性能的导电溶液，故而待处理样液、取样针41、第二导线443、检测电极441、第一导线442及控制器连接形成导电回路，或者待处理样液、容置体42、第二导线443、检测电极441、第一导线442及控制器连接形成导电回路，当该导电回路连通时，控制器控制柱塞泵保压以使取样针41停止吸取待处理样液，进而实现取样器40吸取定量待处理样液。In this optional solution, the first specific embodiment of the sampler 40, as shown in FIG2, the sample liquid to be processed is a conductive solution with conductive properties. The sampling needle 41 and/or the container 42 are conductors. Or the sampling needle 41 and/or the container 42 are provided with a conductor. The sample liquid monitoring component 44 includes a detection electrode 441 installed on the container 42 and insulated from the container 42, the first end of the detection electrode 441 extends into the container 420, and the second end of the detection electrode 441 extends out of the container 42 and is connected to a first wire 442 for conduction. The sample liquid monitoring component 44 also includes a second wire 443 connected to the conductive part on the sampling needle 41 and/or the container 42, the second wire 443, the first wire 442 and the controller are connected to form a conductive circuit, so that when the sample liquid to be processed in the container 420 contacts the first end of the detection electrode 441, the conductive circuit is connected, and then the controller controls the pressure device 43 to maintain pressure so that the sampling needle 41 stops sucking the sample liquid to be processed. During sampling, when the sample liquid to be processed in the accommodating chamber 420 contacts the first end of the detection electrode 441, since the sample liquid to be processed is a conductive solution with conductive properties, the sample liquid to be processed, the sampling needle 41, the second wire 443, the detection electrode 441, the first wire 442 and the controller are connected to form a conductive circuit, or the sample liquid to be processed, the accommodating body 42, the second wire 443, the detection electrode 441, the first wire 442 and the controller are connected to form a conductive circuit. When the conductive circuit is connected, the controller controls the plunger pump to maintain pressure so that the sampling needle 41 stops absorbing the sample liquid to be processed, thereby enabling the sampler 40 to absorb a quantitative amount of the sample liquid to be processed.
进一步地，容置体42包括上端开口且具有容置腔420的容置体本体，容置体本体的上开口端设有用于封闭容置腔420的密封盖，密封盖为绝缘体。取样针41的上端由容置体本体的底部插入容置腔420内。密封盖上设有安装孔，检测电极441竖直插设于安装孔中且与安装孔过盈配合。检测电极441与密封盖绝缘连接，避免回路短路；检测电极441与密封盖过盈配合连接，即可通过调整检测电极441插入容置腔420的高度而调整待处理溶液的预定量，调整操作简单、灵活，容易实施。Furthermore, the container 42 includes a container body with an upper opening and a container cavity 420, and a sealing cover for closing the container cavity 420 is provided at the upper open end of the container body, and the sealing cover is an insulator. The upper end of the sampling needle 41 is inserted into the container cavity 420 from the bottom of the container body. A mounting hole is provided on the sealing cover, and the detection electrode 441 is vertically inserted into the mounting hole and has an interference fit with the mounting hole. The detection electrode 441 is insulated and connected to the sealing cover to avoid a short circuit in the circuit; the detection electrode 441 is connected to the sealing cover by an interference fit, and the predetermined amount of the solution to be treated can be adjusted by adjusting the height of the detection electrode 441 inserted into the container cavity 420, and the adjustment operation is simple, flexible, and easy to implement.
本可选方案中，取样器40的第二具体实施例，如图3所示，容置体42为透明容置体。样液监测件44包括连接于容置体42外侧壁上的液位传感器444，液位传感器444与控制器相连，以在容置腔420内待处理样液的高度达到设定高度时发送样液达量信号给控制器，控制器根据接收的样液达量信号后控制压力器43保压以使取样针41停止吸取待处理样液。取样时，当容置腔420中待处理样液的高度达到设定高度时即表明待处理样液的量达到预设量，此时，液位传感器444发送样液达量信号给控制器，控制器根据接收的样液达量信号后控制柱塞泵保压以使取样针41停止吸取待处理样液，进而实现取样器40吸取定量待处理样液。实际使用过程中，只需调整液位传感器444在容置体42上的安装高度即可调整待处理样液的预设量，调整操作简单、灵活，容易实施。本可选方案中，由于铝酸钠溶液具有高温(130度)、强碱(280g/L)、高固含(150g/L)、易析出、粘稠度高等特性，故而液位传感器444不能设置于与待处理样液直接接触的位置，本可选方案中，使容置体42为透明容置体，且液位传感器444设置于容置体42的外侧壁上，从而解决该存在的技术问题。In this optional solution, the second specific embodiment of the sampler 40, as shown in FIG3, the container 42 is a transparent container. The sample liquid monitoring component 44 includes a liquid level sensor 444 connected to the outer wall of the container 42. The liquid level sensor 444 is connected to the controller to send a sample liquid amount signal to the controller when the height of the sample liquid to be processed in the accommodating chamber 420 reaches a set height. The controller controls the pressure device 43 to maintain pressure based on the received sample liquid amount signal so that the sampling needle 41 stops absorbing the sample liquid to be processed. During sampling, when the height of the sample liquid to be processed in the accommodating chamber 420 reaches the set height, it indicates that the amount of the sample liquid to be processed reaches the preset amount. At this time, the liquid level sensor 444 sends a sample liquid amount signal to the controller. The controller controls the plunger pump to maintain pressure based on the received sample liquid amount signal so that the sampling needle 41 stops absorbing the sample liquid to be processed, thereby realizing that the sampler 40 absorbs a quantitative amount of the sample liquid to be processed. In actual use, the preset amount of the sample liquid to be processed can be adjusted by simply adjusting the installation height of the liquid level sensor 444 on the container 42. The adjustment operation is simple, flexible, and easy to implement. In this optional solution, since the sodium aluminate solution has the characteristics of high temperature (130 degrees), strong alkali (280g/L), high solid content (150g/L), easy precipitation, and high viscosity, the liquid level sensor 444 cannot be set at a position that is in direct contact with the sample liquid to be processed. In this optional solution, the container 42 is a transparent container, and the liquid level sensor 444 is set on the outer wall of the container 42, thereby solving the existing technical problems.
本可选方案中，取样器40的第三具体实施例，如图4所示，样液监测件44包括设置于容置腔420内且透明的透明管445、及连接于容置腔420侧壁上的液位传感器444。取样针41的上端伸入透明管445内以与透明管445连通。液位传感器444与控制器相连，以在透明管445内待处理样液的高度达到设定高度时发送样液达量信号给控制器，控制器根据接收的样液达量信号后控制压力器43保压以使取样针41停止吸取待处理样液。取样时，当透明管445中待处理样液的高度达到设定高度时即表明待处理样液的量达到预设量，此时，液位传感器444发送样液达量信号给控制器，控制器根据接收的样液达量信号后控制柱塞泵保压以使取样针41停止吸取待处理样液，进而实现取样器40吸取定量待处理样液。实际使用过程中，只需调整液位传感器444在容置腔420内侧壁上的安装高度即可调整待处理样液的预设量，调整操作简单、灵活，容易实施。本可选方案中，由于铝酸钠溶液具有高温(130度)、强碱(280g/L)、高固含(150g/L)、易析出、粘稠度高等特性，故而液位传感器444不能设置于与待处理样液直接接触的位置，本可选方案中，通过在容置腔420中设置有由透明材料制备形成的透明管445，且液位传感器444设置于容置腔420的内侧壁上，从而解决该存在的技术问题，且相比于液位传感器444设置于容置体42的外侧壁上，液位传感器444设置于容置腔420的内侧壁上时，可有效保护液位传感器444，避免其受到机械损伤。In this optional solution, the third specific embodiment of the sampler 40 is shown in FIG4 , and the sample liquid monitoring component 44 includes a transparent tube 445 disposed in the accommodating chamber 420 and transparent, and a liquid level sensor 444 connected to the side wall of the accommodating chamber 420. The upper end of the sampling needle 41 extends into the transparent tube 445 to communicate with the transparent tube 445. The liquid level sensor 444 is connected to the controller to send a sample liquid level signal to the controller when the height of the sample liquid to be processed in the transparent tube 445 reaches a set height. The controller controls the pressure device 43 to maintain pressure according to the received sample liquid level signal so that the sampling needle 41 stops absorbing the sample liquid to be processed. During sampling, when the height of the sample liquid to be processed in the transparent tube 445 reaches the set height, it indicates that the amount of the sample liquid to be processed has reached the preset amount. At this time, the liquid level sensor 444 sends a sample liquid amount reaching signal to the controller. The controller controls the plunger pump to maintain pressure according to the received sample liquid amount reaching signal so that the sampling needle 41 stops sucking the sample liquid to be processed, thereby realizing that the sampler 40 sucks a quantitative amount of the sample liquid to be processed. In actual use, the preset amount of the sample liquid to be processed can be adjusted by simply adjusting the installation height of the liquid level sensor 444 on the inner wall of the accommodating cavity 420. The adjustment operation is simple, flexible, and easy to implement. In this optional scheme, since the sodium aluminate solution has the characteristics of high temperature (130 degrees), strong alkali (280g/L), high solid content (150g/L), easy precipitation, and high viscosity, the liquid level sensor 444 cannot be set at a position that is in direct contact with the sample liquid to be processed. In this optional scheme, a transparent tube 445 made of transparent material is provided in the accommodating chamber 420, and the liquid level sensor 444 is provided on the inner wall of the accommodating chamber 420, thereby solving the existing technical problem. Compared with the liquid level sensor 444 being provided on the outer wall of the accommodating body 42, when the liquid level sensor 444 is provided on the inner wall of the accommodating chamber 420, the liquid level sensor 444 can be effectively protected from mechanical damage.
进一步地，如图4所示，容置腔420与透明管445之间、透明管445与容置体42之间分别设有用于密封的密封件46，密封件46起到顶紧透明管445及气体密封作用。优选地，密封件46由抗待处理样液腐蚀的材料制备形成。4, sealing members 46 are provided between the accommodating chamber 420 and the transparent tube 445, and between the transparent tube 445 and the accommodating body 42, respectively, and the sealing members 46 play the role of tightening the transparent tube 445 and sealing the gas. Preferably, the sealing members 46 are made of a material that is resistant to corrosion by the sample liquid to be processed.
可选地，如图1所示，取样槽20包括用于容留待处理样液的取样槽本体21，取样槽本体21内设有用于对容留的待处理样液进行保温的保温装置。本可选方案的具体实施例中，保温装置为市场上常用的用于对物体进行加热保温的装置，取样槽20不仅仅可以使容留的待处理样液实时流动，并且具有保温恒温功能，保证了铝酸钠溶液进入取样槽20时不会因为温度降低而溶液析出，进而保证取样质量及取样的稳定性。取样槽本体21的侧壁连接有与其内腔分别连通的采样管22和排水管23，采样管22的输入端与输送总管连通，以将输送总管内的待处理溶液导入取样槽本体21，排水管23与用于回收待处理样液的回收总管连通，排水管23与采样管22配合作用以使待处理样液在取样槽本体21内实时流动。本可选方案的具体实施例中，采样管22为市场上常用的具有伴热功能的伴热管。采样管22采用不锈钢材质，并具有伴热功能，且可以根据不同生产阶段的铝酸钠溶液温度而设置伴热控制温度，保证样品不因温度而产生差异，不锈钢材质也保证了在强碱、高温条件下，采样管22的使用寿命。Optionally, as shown in FIG1 , the sampling tank 20 includes a sampling tank body 21 for holding the sample liquid to be processed, and a heat preservation device for keeping the sample liquid to be processed held in the sampling tank body 21 is provided. In the specific embodiment of this optional scheme, the heat preservation device is a device commonly used in the market for heating and keeping objects warm. The sampling tank 20 can not only make the held sample liquid to be processed flow in real time, but also has a heat preservation and constant temperature function, ensuring that the sodium aluminate solution will not precipitate due to the temperature drop when entering the sampling tank 20, thereby ensuring the sampling quality and sampling stability. The side wall of the sampling tank body 21 is connected with a sampling tube 22 and a drain pipe 23 respectively connected to its inner cavity, the input end of the sampling tube 22 is connected to the transport main pipe to introduce the solution to be processed in the transport main pipe into the sampling tank body 21, the drain pipe 23 is connected to the recovery main pipe for recovering the sample liquid to be processed, and the drain pipe 23 cooperates with the sampling tube 22 to make the sample liquid to be processed flow in real time in the sampling tank body 21. In the specific embodiment of this optional solution, the sampling tube 22 is a commonly used heating tube with a heating function on the market. The sampling tube 22 is made of stainless steel and has a heating function. The heating control temperature can be set according to the temperature of the sodium aluminate solution in different production stages to ensure that the sample does not differ due to temperature. The stainless steel material also ensures the service life of the sampling tube 22 under strong alkali and high temperature conditions.
可选地，如图1所示，稀释池30内设有用于对容留的待分析样液进行保温的保温装置。本可选方案的具体实施例中，保温装置为市场上常用的用于对物体进行加热保温的装置，稀释池30具有保温恒温功能，保证了铝酸钠溶液在稀释池30中不会因为温度降低而溶液析出，进而保证待分析样液质量的稳定性。Optionally, as shown in Fig. 1, a heat preservation device for keeping the sample solution to be analyzed warm is provided in the dilution tank 30. In a specific embodiment of this optional solution, the heat preservation device is a device commonly used in the market for heating and keeping objects warm, and the dilution tank 30 has a heat preservation and constant temperature function, which ensures that the sodium aluminate solution will not precipitate out due to the temperature drop in the dilution tank 30, thereby ensuring the stability of the quality of the sample solution to be analyzed.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010399690.8ACN113670664B (en) | 2020-05-13 | 2020-05-13 | Automatic sampling and sample preparation device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010399690.8ACN113670664B (en) | 2020-05-13 | 2020-05-13 | Automatic sampling and sample preparation device |
| Publication Number | Publication Date |
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| CN113670664A CN113670664A (en) | 2021-11-19 |
| CN113670664Btrue CN113670664B (en) | 2024-11-05 |
| Application Number | Title | Priority Date | Filing Date |
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| CN202010399690.8AActiveCN113670664B (en) | 2020-05-13 | 2020-05-13 | Automatic sampling and sample preparation device |
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| CN (1) | CN113670664B (en) |
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