技术领域Technical field
本实用新型属于涉及选矿技术领域，具体涉及一种矿浆性质检测装置。The utility model belongs to the field of mineral processing technology, and specifically relates to a slurry property detection device.
背景技术Background technique
矿浆液的浓度和细度是矿浆分选过程中需要重点监测的参数。矿浆是矿物颗粒与水组成的非均相固液悬浮液。矿浆浓度是矿浆中固体矿粒的含量占比。为了稳定和提高选矿生产的质量和效率，选矿作业的工艺流程中需要经常测定矿浆浓度。在磨矿过程中，矿浆浓度影响磨机效率和浮选生产指标。浮选作业时，矿浆浓度过低会造成生产效率低、精矿产量少、药剂用量过大。矿浆浓度过高会造成精矿质量差、回收率低。在重选作业中，矿浆浓度决定了分级溢流的细度。矿浆浓度的高低还影响过滤速度和滤饼水分。此外，矿浆中颗粒的尺寸大小直接影响浮选指标的好坏。入浮颗粒太粗，有用矿物的单体解离度不高，从而使精矿品位降低，同时由于颗粒太大不易被泡沫浮起，最终造成目的矿物回收率下降；入浮颗粒太细会导致浮选药剂的选择性降低，不仅会造成精矿品位的下降，还会大大增加浮选药剂的用量。因此，实时检测并控制矿浆浓度和细度保持在规定的范围内，对指导生产工艺的稳定运行，实现选矿厂智能化，提高精矿产品质量和选矿厂的经济效益等都有着极为重要的意义。目前，现场矿浆浓度细度主要采用人工测量，人为影响因素大，且效率低下，工作量繁复，浪费了大量的人力和时间，不利于连续性作业和指导生产过程。The concentration and fineness of the slurry are parameters that need to be monitored during the slurry sorting process. Slurry is a heterogeneous solid-liquid suspension composed of mineral particles and water. Slurry concentration is the proportion of solid mineral particles in the slurry. In order to stabilize and improve the quality and efficiency of mineral processing production, it is necessary to frequently measure the slurry concentration in the process of mineral processing operations. During the grinding process, the slurry concentration affects the mill efficiency and flotation production indicators. During flotation operation, too low slurry concentration will result in low production efficiency, low concentrate output, and excessive dosage of chemicals. Excessive slurry concentration will result in poor concentrate quality and low recovery rate. In the gravity separation operation, the slurry concentration determines the fineness of the classification overflow. The concentration of slurry also affects the filtration speed and filter cake moisture. In addition, the size of the particles in the slurry directly affects the flotation index. If the floating particles are too coarse, the monomer dissociation degree of useful minerals is not high, thus reducing the grade of the concentrate. At the same time, the particles are too large to be easily floated by the foam, which ultimately results in a decrease in the recovery rate of the target mineral; if the floating particles are too fine, it will cause Reducing the selectivity of flotation reagents will not only cause a decrease in concentrate grade, but also greatly increase the dosage of flotation reagents. Therefore, real-time detection and control of the slurry concentration and fineness within the specified range are of extremely important significance for guiding the stable operation of the production process, realizing the intelligence of the mineral processing plant, improving the quality of the concentrate products and the economic benefits of the mineral processing plant. . At present, the on-site slurry concentration and fineness are mainly measured manually, which has large human influence factors, low efficiency, complicated workload, waste of a lot of manpower and time, and is not conducive to continuous operations and guidance of the production process.
CN114459942A公开了一种智能浓细度测量系统及选矿厂矿浆浓细度检测的方法，该系统包括智能浓度测量系统、粒度筛分测量系统、缩分稳流系统、输送系统和控制计算系统。该智能浓度测量系统采用可自动清洁和复原的浓度壶对所取矿浆的重量和体积进行测量，其中重量的测量采用称重传感器进行高精度测量，体积测量采用定容方式结合已知浓度液体标定体积，粒度筛分测量系统采用新型的臂式筛分设备对矿浆进行深度筛分，但其装置结构复杂，需要通过加持转位系统实现浓度壶的测重和清洗复原，同时需要额外的粒度筛分系统进行筛分。CN114459942A discloses an intelligent concentration measurement system and a method for detecting the concentration of slurry in a mineral processing plant. The system includes an intelligent concentration measurement system, a particle size screening measurement system, a reduction and flow stabilization system, a transportation system and a control calculation system. This intelligent concentration measurement system uses a concentration pot that can be automatically cleaned and restored to measure the weight and volume of the taken slurry. The weight measurement uses a weighing sensor for high-precision measurement, and the volume measurement uses a constant volume method combined with known concentration liquid calibration. The volume and particle size screening measurement system uses a new type of arm-type screening equipment to deeply screen the slurry. However, the device structure is complex and requires a supported transposition system to achieve weight measurement and cleaning and restoration of the concentration pot. At the same time, an additional particle size screen is required. Screening by system.
因此迫切需要有高效、准确、及时的矿浆浓度、细度测量设备，通过对浓度和细度的控制，提高矿浆处理的效率和产品质量，降低生产成本和环境污染等方面的负面影响。Therefore, there is an urgent need for efficient, accurate and timely slurry concentration and fineness measurement equipment. By controlling concentration and fineness, the efficiency of slurry processing and product quality can be improved, and negative impacts such as production costs and environmental pollution can be reduced.
发明内容Contents of the invention
本实用新型的目的是采用间接测定法，提供一种高效、准确、及时的矿浆浓度、细度测量设备。The purpose of this utility model is to provide an efficient, accurate and timely measuring equipment for slurry concentration and fineness using an indirect measurement method.
为实现上述目的，本发明提供了一种矿浆浓度、细度智能在线检测装置，所述在线装置包括进料单元、浓度壶、罗茨风机、称重单元和PLC控制器；In order to achieve the above object, the present invention provides an intelligent online detection device for slurry concentration and fineness. The online device includes a feeding unit, a concentration pot, a Roots blower, a weighing unit and a PLC controller;
其中，所述进料单元包括依次相连的接料口和循环泵，所述接料口、循环泵、浓度壶依次连接，所述循环泵的出料管道与浓度壶的进料口之间设置有第一电磁阀；Wherein, the feeding unit includes a feeding port and a circulation pump that are connected in sequence. The feeding port, the circulation pump, and the concentration pot are connected in sequence. The discharging pipe of the circulation pump and the feeding port of the concentration pot are arranged between There is a first solenoid valve;
所述浓度壶内部的中下部位置设有标准筛网，浓度壶上方与进水管连接并设置有第二电磁阀，浓度壶的下方分别连接有排水管道和通风管管道，所述排水管道上设置有第三电磁阀，所述通风管管道的一端设置有第四电磁阀并与罗茨风机的出风口相连，另一端延伸连接罗茨风机的进风口并在延伸管道上设置第五电磁阀，从而当控制第四电磁阀开启时，罗茨风机进行反吹风操作，当控制第五电磁阀开启时，罗茨风机进行抽吸操作，形成负压。A standard screen is provided at the middle and lower part of the concentration pot. The upper part of the concentration pot is connected to the water inlet pipe and is provided with a second solenoid valve. The bottom part of the concentration pot is connected to a drainage pipe and a ventilation pipe respectively. The drainage pipe is provided with There is a third solenoid valve. One end of the ventilation pipe is provided with a fourth solenoid valve and is connected to the air outlet of the Roots blower. The other end is extended and connected to the air inlet of the Roots blower and a fifth solenoid valve is provided on the extension pipe. Therefore, when the fourth solenoid valve is controlled to open, the Roots blower performs a back-blowing operation, and when the fifth solenoid valve is controlled to open, the Roots blower performs a suction operation to form a negative pressure.
所述称重单元架设于浓度壶的上侧；优选地，所述称重单元为一挂称，可以直接对设置于下方的浓度壶进行称重。The weighing unit is installed on the upper side of the concentration pot; preferably, the weighing unit is a hanging scale that can directly weigh the concentration pot located below.
所述第一电磁阀、第二电磁阀、第三电磁阀、第四电磁阀、第五电磁阀和称重单元分别与PLC控制器连接并受PLC控制器的控制。The first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve and the weighing unit are respectively connected to and controlled by a PLC controller.
其中，所述循环泵的出料管道在接近浓度壶的位置分为主管道和分叉管道两路，其中主管道与接料口连接；分叉管道与浓度壶的进料口连接并设置第一电磁阀，同时在分叉管道与第一电磁阀中间设置有滤网。通过采用循环泵抽取实时收集矿浆，采用上述开环式循环取样通过管路返回至矿浆接料口，并在开环式循环取样通过管路的取样入口处装有滤网，可以有效地过滤掉杂物，提高采样数据的可靠性，避免杂物对矿浆浓度、细度的干扰。Wherein, the discharging pipe of the circulation pump is divided into a main pipe and a bifurcated pipe at a position close to the concentration pot, wherein the main pipe is connected to the feed port; the bifurcated pipe is connected to the feed port of the concentration pot and is provided with a third A solenoid valve is provided with a filter screen between the bifurcated pipe and the first solenoid valve. The slurry is collected in real time by using a circulation pump to extract, and the above-mentioned open-loop circulation sampling is used to return to the slurry connection port through the pipeline, and a filter is installed at the sampling inlet of the open-loop circulation sampling pipeline, which can effectively filter out Impurities can be removed to improve the reliability of sampling data and avoid interference of impurities on the concentration and fineness of slurry.
优选地，所述滤网的孔径为1-3mm。Preferably, the filter screen has a pore size of 1-3 mm.
所述标准筛网的筛网孔径根据被测矿浆粒度分布和实际生产需求进行确定。The screen aperture of the standard screen is determined based on the particle size distribution of the measured slurry and actual production needs.
优选地，所述筛网的孔径范围1mm-0.038mm。Preferably, the pore size of the screen ranges from 1 mm to 0.038 mm.
所述PLC控制器与人机界面通讯连接，构成控制系统，所述人机界面为触摸屏或上位机中的任意一种或两种。优选地，同时设置触摸屏和上位机等人机对话界面用于参数设置和数据显示。The PLC controller is communicatively connected with a human-machine interface to form a control system. The human-machine interface is any one or both of a touch screen or a host computer. Preferably, a touch screen and a host computer and other human-machine dialogue interfaces are simultaneously provided for parameter setting and data display.
优选地，所述在先检测装置还包括标准箱和控制箱，所述浓度壶、罗茨风机和称重单元均设置于所述标准箱中，所述PLC控制器设置于控制箱中，从而实现集成化。Preferably, the previous detection device also includes a standard box and a control box, the concentration pot, Roots blower and weighing unit are all arranged in the standard box, and the PLC controller is arranged in the control box, so that Achieve integration.
本实用新型进一步提出了一种多路矿浆浓度、细度智能在线检测装置，其包含多组上述在线检测装置，其中，各组在线装置共用一个罗茨风机。具体地，在单路在线检测装置的基础上，通过平行并列增加多组接料口、第一电磁阀、第二电磁阀、第三电磁阀、第四电磁阀、称重单元、浓度壶、第五电磁阀和循环泵来完成，多组装置共用同一个罗茨风机。The utility model further proposes a multi-channel intelligent online detection device for slurry concentration and fineness, which includes multiple groups of the above-mentioned online detection devices, in which each group of online devices shares a Roots blower. Specifically, based on the single-channel online detection device, multiple sets of material receiving ports, first solenoid valves, second solenoid valves, third solenoid valves, fourth solenoid valves, weighing units, concentration pots, etc. are added in parallel. The fifth solenoid valve and circulation pump are used to complete the operation, and multiple groups of devices share the same Roots blower.
所述的矿浆浓度、细度智能在线检测装置的工作步骤为：The working steps of the intelligent online detection device for slurry concentration and fineness are:
①矿浆经接料口通过管道给入循环泵中，通过控制第一电磁阀，使来自循环泵的矿浆样通过分叉管道注入浓度壶中，矿浆刚从溢流口流出时停止注浆。通过称重单元的传感器称出注满矿浆的浓度壶总重量G1、根据公式算出矿浆的浓度P1，公式如下所示：① The slurry is fed into the circulation pump through the pipeline through the material connection port. By controlling the first solenoid valve, the slurry sample from the circulation pump is injected into the concentration pot through the bifurcated pipe. The grouting is stopped when the slurry just flows out of the overflow port. Weigh the total weight G1 of the concentration pot filled with slurry through the sensor of the weighing unit, and calculate the concentration P1 of the slurry according to the formula, which is as follows:
P1＝(G1-G0-V)·δ/[(δ-1)(G1-G0)]P1 =(G1 -G0 -V)·δ/[(δ-1)(G1 -G0 )]
其中G1为装满矿浆的浓度壶重量，单位g；G0为空壶重量，单位g；V为壶容积，单位ml；P1为百分浓度，单位％；δ为矿石比重，单位g/ml。Among them, G1 is the weight of the concentration pot filled with slurry, in g; G0 is the weight of the empty pot, in g; V is the pot volume, in ml; P1 is the percentage concentration, in %; δ is the specific gravity of the ore, in g. /ml.
②控制第五电磁阀打开，并启动罗茨风机，使内部形成负压，同时打开第二电磁阀，注水不断冲洗，直至达到完全过滤，最终大于筛网孔径的(如200目)矿石颗粒留存在筛网上，清洗完成后关闭第五电磁阀。②Control the fifth solenoid valve to open and start the Roots blower to form a negative pressure inside. At the same time, open the second solenoid valve and continuously flush with water until complete filtration is achieved. Finally, ore particles larger than the screen aperture (such as 200 mesh) are retained. On the screen, close the fifth solenoid valve after cleaning is completed.
③通过控制第二电磁阀打开，将清水注入浓度壶，至刚从溢流口流出时停止注水。通过称重传感器称出注满清水的浓度壶的总重量G2、根据公式算出浓度P2，公式如下：③ By controlling the opening of the second solenoid valve, inject clean water into the concentration pot and stop injecting water when it just flows out of the overflow port. Use the load cell to weigh the total weight G2 of the concentration pot filled with clean water, and calculate the concentration P2 according to the formula, which is as follows:
P2＝(G2-G0-V)·δ/[(δ-1)(G2-G0)]P2 =(G2 -G0 -V)·δ/[(δ-1)(G2 -G0 )]
其中G2为装满清水的浓度壶重量，单位g；G0为空壶重量，单位g；V为壶容积，单位ml；P2为百分浓度，单位％；δ为矿石比重，单位g/ml。Among them, G2 is the weight of the concentration pot filled with clean water, in g; G0 is the weight of the empty pot, in g; V is the volume of the pot, in ml; P2 is the percentage concentration, in %; δ is the specific gravity of the ore, in g/ ml.
④通过步骤①和步骤③中两次称重得到的矿浆浓度，可以计算出矿浆中的物料细度X，计算公式如下：④The fineness
⑤控制第三电磁阀打开进行排水，接着控制第四电磁阀打开利用来自罗茨风机的气体进行气体反吹，以吹落留在筛网上的颗粒，然后打开第二电磁阀进行注水，使壶内的水翻滚，带动筛上物完全排出；筛上物完全排出后，关闭第二电磁阀停止注水，反吹一定时间后关闭第三电磁阀，然后关闭第四电磁阀，最后打开第五电磁阀，利用罗茨风机形成的负压对壶内的残留的水进行抽吸，排空浓度壶内部残留的水分。⑤ Control the third solenoid valve to open for drainage, then control the fourth solenoid valve to open and use the gas from the Roots blower to perform gas backflush to blow off the particles left on the screen, and then open the second solenoid valve to inject water to make the kettle The water inside rolls, driving the objects on the sieve to be completely discharged; after the objects on the sieve are completely discharged, close the second solenoid valve to stop water injection. After a certain period of backflush, close the third solenoid valve, then close the fourth solenoid valve, and finally open the fifth solenoid valve. The valve uses the negative pressure formed by the Roots blower to suck the remaining water in the pot and evacuate the remaining water in the concentration pot.
有益效果：本装置可以在采矿、冶金、化工等行业广泛应用，减少人工操作带来的误差和繁琐流程，提高生产效率和检测精度，具有良好效益；此外，采用循环泵抽取实时收集矿浆，开环式循环取样通过管路返回至矿浆接料口，通过在取样入口处设置滤网，可以有效地过滤掉杂物，使得取样更加均匀和稳定，从而提高样品的代表性和准确性；与传统的人工检测相比，本设备可以实现全过程自动化操作，减少人工成本和时间成本，提高生产效率和工作安全性。Beneficial effects: This device can be widely used in mining, metallurgy, chemical industry and other industries, reducing errors and cumbersome processes caused by manual operations, improving production efficiency and detection accuracy, and has good benefits; in addition, a circulating pump is used to collect the slurry in real time and start Loop sampling is returned to the slurry connection port through the pipeline. By setting a filter at the sampling inlet, impurities can be effectively filtered out, making the sampling more uniform and stable, thus improving the representativeness and accuracy of the sample; unlike traditional Compared with manual inspection, this equipment can realize full-process automated operation, reduce labor costs and time costs, and improve production efficiency and work safety.
附图说明Description of drawings
图1为发明的一种矿浆浓度、细度智能在线检测装置。Figure 1 shows an invented intelligent online detection device for slurry concentration and fineness.
图2为PLC控制系统示意图。Figure 2 is a schematic diagram of the PLC control system.
图中各部分为：1-接料口，2-第一电磁阀，3-第二电磁阀，4-第三电磁阀，5-第四电磁阀，6-称重单元，7-浓度壶，8-第五电磁阀，9-循环泵，10-罗茨风机组成。The parts in the figure are: 1-receiving port, 2-first solenoid valve, 3-second solenoid valve, 4-third solenoid valve, 5-fourth solenoid valve, 6-weighing unit, 7-concentration pot , 8-fifth solenoid valve, 9-circulation pump, 10-Roots blower.
具体实施方式Detailed ways
下面结合附图中的实施例对本发明作进一步的说明：The present invention will be further described below in conjunction with the embodiments in the accompanying drawings:
如图1所示，一种矿浆浓度、细度智能在线检测装置由以下部分组成：接料口1、第一电磁阀2、第二电磁阀3、第三电磁阀4、第四电磁阀5、称重单元6、浓度壶7，第五电磁阀8、循环泵9和罗茨风机10。其中，第一电磁阀2、第二电磁阀3、第三电磁阀4、第四电磁阀5、称重单元6、浓度壶7，第五电磁阀8、循环泵9和罗茨风机10均设置于一标准箱中，接料口1通过与检测地现场管道连接后通过管道连接循环泵9，循环泵9出料管道在接近浓度壶的位置分为主管道和分叉管道两路，其中主管道与接料口1连接；分叉管道与浓度壶7的进料口连接并设置第一电磁阀2，同时在分叉管道与第一电磁阀2中间设置有滤网，滤网的孔径可以选择在1-3mm。通过采用循环泵9抽取实时收集矿浆，采用上述开环式循环取样通过管路返回至矿浆接料口，并在开环式循环取样通过管路的取样入口处装有滤网，可以有效地过滤掉杂物，提高采样数据的可靠性，避免杂物对矿浆浓度、细度的干扰。第一电磁阀2下方连接浓度壶7，并在浓度壶7上侧架设称重单元6。浓度壶6下方侧边设置排水管道及第三电磁阀4，浓度壶7侧上方连接进水管并设置第二电磁阀3。浓度壶7的下方分别连接有排水管道和通风管管道，所述排水管道上设置有第三电磁阀4，通风管管道的一端设置有第四电磁阀5并与罗茨风机10的出风口相连，另一端延伸连接罗茨风机10的进风口并在延伸管道上设置第五电磁阀8。As shown in Figure 1, an intelligent online detection device for slurry concentration and fineness consists of the following parts: material receiving port 1, first solenoid valve 2, second solenoid valve 3, third solenoid valve 4, fourth solenoid valve 5 , weighing unit 6, concentration pot 7, fifth solenoid valve 8, circulation pump 9 and Roots blower 10. Among them, the first solenoid valve 2, the second solenoid valve 3, the third solenoid valve 4, the fourth solenoid valve 5, the weighing unit 6, the concentration pot 7, the fifth solenoid valve 8, the circulation pump 9 and the Roots blower 10 are all It is installed in a standard box. The material receiving port 1 is connected to the on-site pipeline of the detection site and then connected to the circulation pump 9 through the pipeline. The discharge pipeline of the circulation pump 9 is divided into two channels: the main pipeline and the bifurcated pipeline close to the concentration pot. The main pipe is connected to the feed port 1; the bifurcated pipe is connected to the feed port of the concentration pot 7 and a first solenoid valve 2 is provided. At the same time, a filter screen is provided between the bifurcated pipe and the first solenoid valve 2. The aperture of the filter screen is You can choose between 1-3mm. By using the circulation pump 9 to extract and collect the slurry in real time, the above-mentioned open-loop circulation sampling is used to return to the slurry connection port through the pipeline, and a filter is installed at the sampling inlet of the open-loop circulation sampling pipeline, which can effectively filter Remove debris, improve the reliability of sampling data, and avoid interference of debris on the concentration and fineness of the slurry. The concentration pot 7 is connected below the first solenoid valve 2, and a weighing unit 6 is set up above the concentration pot 7. A drainage pipe and a third solenoid valve 4 are provided on the lower side of the concentration pot 6, and a water inlet pipe and a second solenoid valve 3 are provided on the upper side of the concentration pot 7. A drainage pipe and a ventilation pipe are respectively connected below the concentration pot 7. A third solenoid valve 4 is provided on the drainage pipe. A fourth solenoid valve 5 is provided at one end of the ventilation pipe and is connected to the air outlet of the Roots blower 10. , the other end is extended to connect the air inlet of the Roots blower 10 and a fifth solenoid valve 8 is provided on the extended pipe.
第一电磁阀2、第二电磁阀3、第三电磁阀4、第四电磁阀5、第五电磁阀8和称重单元6分别与PLC控制器连接并受控于PLC控制器，PLC控制器可以与人机界面通讯连接，包括触摸屏和上位机，用于参数设置和数据显示。The first solenoid valve 2, the second solenoid valve 3, the third solenoid valve 4, the fourth solenoid valve 5, the fifth solenoid valve 8 and the weighing unit 6 are respectively connected to and controlled by the PLC controller. PLC control The device can communicate with the human-machine interface, including touch screen and host computer, for parameter setting and data display.
本实施例提供的矿浆浓度、细度智能在线检测装置采用循环泵9抽取实时收集矿浆，采用开环式循环取样通过管路返回至矿浆接料口1。开环式循环取样入口处装有滤网，可以有效地过滤掉杂物，提高采样数据的可靠性，避免杂物对矿浆浓度、细度的干扰。The intelligent online detection device for slurry concentration and fineness provided in this embodiment uses the circulation pump 9 to extract and collect the slurry in real time, and uses open-loop circulation sampling to return to the slurry connection port 1 through the pipeline. A filter is installed at the open-loop sampling inlet, which can effectively filter out debris, improve the reliability of sampling data, and avoid interference of debris on the concentration and fineness of the slurry.
所述的矿浆浓度、细度智能在线检测装置，浓度壶7内中下部位置设有标准筛网，筛网网目根据被测矿浆粒度分布和实际生产需求进行确定，优选筛网孔径范围1mm-0.038mm。本实施例以200目筛网为例。The above-mentioned intelligent online detection device for slurry concentration and fineness has a standard screen in the middle and lower part of the concentration pot 7. The screen mesh is determined based on the particle size distribution of the measured slurry and actual production needs. The preferred screen aperture range is 1mm- 0.038mm. This embodiment takes a 200-mesh screen as an example.
如图2所示，所述的矿浆浓度、细度智能在线检测装置采用PLC进行逻辑程序控制，构成控制系统，设置于控制箱中。As shown in Figure 2, the intelligent online detection device for slurry concentration and fineness adopts PLC for logic program control to form a control system and is installed in the control box.
同时设置触摸屏HMI和上位机等人机对话界面用于参数设置和数据显示。可以利用现有技术中的通用技术实现上述控制操作。At the same time, a touch screen HMI and a host computer and other human-machine dialogue interfaces are set up for parameter setting and data display. The above control operations can be implemented using common techniques in the prior art.
所述的矿浆浓度、细度智能在线检测装置，当需要进行多路矿浆测量时，即矿浆取样点数量大于1时，在单路矿浆测量基础上通过平行并列增加接料口1、第一电磁阀2、第二电磁阀3、第三电磁阀4、第四电磁阀5、称重单元6、浓度壶7、第五电磁阀8和循环泵9数量来完成，多路矿浆测量可共用同一个罗茨风机10。The described intelligent online detection device for slurry concentration and fineness, when multi-channel slurry measurement is required, that is, when the number of slurry sampling points is greater than 1, on the basis of single-channel slurry measurement, the connecting port 1 and the first electromagnetic sensor are added in parallel. The valve 2, the second solenoid valve 3, the third solenoid valve 4, the fourth solenoid valve 5, the weighing unit 6, the concentration pot 7, the fifth solenoid valve 8 and the circulation pump 9 can be completed. Multiple slurry measurements can share the same A Roots blower10.
下面以单路矿浆测量为例，所述的矿浆浓度、细度智能在线检测装置的工作步骤为：Taking single-channel pulp measurement as an example, the working steps of the intelligent online detection device for pulp concentration and fineness are:
①矿浆经接料口通过管道给入循环泵9中，通过控制第一电磁阀2，使来自循环泵9的矿浆样通过分叉管道注入浓度壶7中，矿浆刚从溢流口流出时停止注浆。通过称重单元6的传感器称出注满矿浆的浓度壶总重量G1、根据公式算出矿浆的浓度P1，公式如下所示：① The slurry is fed into the circulation pump 9 through the pipe through the material connection port. By controlling the first solenoid valve 2, the slurry sample from the circulation pump 9 is injected into the concentration pot 7 through the bifurcated pipe. It stops when the slurry just flows out of the overflow port. Grouting. Weigh the total weight G1 of the concentration pot filled with slurry through the sensor of the weighing unit 6, and calculate the concentration P1 of the slurry according to the formula, which is as follows:
P1＝(G1-G0-V)·δ/[(δ-1)(G1-G0)]P1 =(G1 -G0 -V)·δ/[(δ-1)(G1 -G0 )]
其中G1为装满矿浆的浓度壶7重量，单位g；G0为空壶重量，单位g；V为壶容积，单位ml；P1为百分浓度，单位％；δ为矿石比重，单位g/ml。Among them, G1 is the weight of the concentration pot filled with slurry, in g; G0 is the weight of the empty pot, in g; V is the volume of the pot, in ml; P1 is the percentage concentration, in %; δ is the specific gravity of the ore, in unit g/ml.
②控制第五电磁阀8打开，并启动罗茨风机10，使内部形成负压，同时打开第二电磁阀3，注水不断冲洗，直至达到完全过滤，最终大于200目的矿石颗粒留存在筛网上，清洗完成后关闭第五电磁阀8。② Control the fifth solenoid valve 8 to open, and start the Roots blower 10 to form a negative pressure inside. At the same time, open the second solenoid valve 3, and continuously flush with water until complete filtration is achieved. Finally, ore particles larger than 200 mesh are retained on the screen. After cleaning is completed, close the fifth solenoid valve 8.
③通过控制第二电磁阀3打开，将清水注入浓度壶7，至刚从溢流口流出时停止注水。通过称重传感器(即称重单元6)称出注满清水的浓度壶7的总重量G2、根据公式算出浓度P2，公式如下：③ By controlling the opening of the second solenoid valve 3, inject clean water into the concentration pot 7, and stop injecting water when it just flows out of the overflow port. Weigh the total weight G2 of the concentration pot 7 filled with clean water through the weighing sensor (i.e., the weighing unit 6), and calculate the concentration P2 according to the formula, which is as follows:
P2＝(G2-G0-V)·δ/[(δ-1)(G2-G0)]P2 =(G2 -G0 -V)·δ/[(δ-1)(G2 -G0 )]
其中G2为装满清水的浓度壶7重量，单位g；G0为空壶重量，单位g；V为壶容积，单位ml；P2为百分浓度，单位％；δ为矿石比重，单位g/ml。Among them, G2 is the weight of the concentration pot filled with clean water, in g; G0 is the weight of the empty pot, in g; V is the volume of the pot, in ml; P2 is the percentage concentration, in %; δ is the specific gravity of the ore, in g. /ml.
④通过步骤①和步骤③中两次称重得到的矿浆浓度，可以计算出矿浆中的物料细度X，计算公式如下：④The fineness
⑤控制第三电磁阀4打开进行排水，接着控制第四电磁阀5打开并利用来自罗茨风机10的气体进行气体反吹，以吹落留在筛网上的颗粒，然后打开第二电磁阀3进行注水，使壶内的水翻滚，带动筛上物完全排出；筛上物完全排出后，关闭第二电磁阀3停止注水，反吹一定时间后关闭第三电磁阀4，然后关闭第四电磁阀5，最后打开第五电磁阀8，利用罗茨风机10形成的负压对壶内的残留的水进行抽吸，排空浓度壶7内部残留的水分。⑤Control the third solenoid valve 4 to open for drainage, then control the fourth solenoid valve 5 to open and use the gas from the Roots blower 10 to perform gas backflush to blow off the particles left on the screen, and then open the second solenoid valve 3 Carry out water injection, causing the water in the pot to tumble, driving the objects on the sieve to be completely discharged; after the objects on the sieve are completely discharged, close the second solenoid valve 3 to stop water injection, and after a certain period of backflush, close the third solenoid valve 4, and then close the fourth solenoid valve. Valve 5, finally open the fifth solenoid valve 8, use the negative pressure formed by the Roots blower 10 to suck the remaining water in the pot, and drain the remaining water inside the concentration pot 7.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321642375.9UCN220188528U (en) | 2023-06-27 | 2023-06-27 | An intelligent online detection device for pulp concentration and fineness |
| Application Number | Priority Date | Filing Date | Title |
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| CN202321642375.9UCN220188528U (en) | 2023-06-27 | 2023-06-27 | An intelligent online detection device for pulp concentration and fineness |
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| CN202321642375.9UExpired - Fee RelatedCN220188528U (en) | 2023-06-27 | 2023-06-27 | An intelligent online detection device for pulp concentration and fineness |
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