CN210945664U - On-line detection device for blast furnace slag output - Google Patents

Abstract

Translated fromChinese

本实用新型提供一种高炉熔渣出渣量在线检测装置，包括：渣量称量装置，设置于高炉出渣沟末端用于实时称重出渣的重量；渣量称量装置上设有渣沟工作内衬；重力传感器，安装于混凝土或钢结构平台上，且渣量称量装置安装且悬挂于重力传感器上；数据采集系统，用于实时收集渣量称量装置变化的重量数据；数据处理及显示系统，用于根据高炉熔渣出渣变化的重量数据实时计算并显示高炉的出渣量与出渣流量值。通过实时检测高炉出渣的重量变化计算高炉熔渣出渣量与瞬时流量，可适应高炉复杂工艺下调节高炉出渣量的在线检测要求，为确保高炉稳定顺行提高可靠判定依据，同时，为后续冲渣系统水量调节的依据，降低了炉渣处理系统的功耗。

The utility model provides an on-line detection device for blast furnace slag slag output, comprising: a slag weighing device, which is arranged at the end of a blast furnace slag ditch for weighing the slag in real time; the slag weighing device is provided with a slag ditch Working lining; gravity sensor, installed on the concrete or steel structure platform, and the slag weighing device is installed and suspended on the gravity sensor; data acquisition system, used to collect the weight data of the slag weighing device in real time; data processing And the display system is used to calculate and display the slag output and slag flow value of the blast furnace in real time according to the weight data of the blast furnace slag slag change. By detecting the weight change of blast furnace slag in real time, calculating the amount of blast furnace slag and the instantaneous flow rate can meet the online detection requirements of adjusting the amount of blast furnace slag under the complex process of blast furnace. The basis for adjusting the water volume of the subsequent slag flushing system reduces the power consumption of the slag processing system.

Description

Translated fromChinese

高炉熔渣出渣量在线检测装置On-line detection device for blast furnace slag output

技术领域technical field

本实用新型涉及高炉冶炼技术领域，特别是涉及一种高炉熔渣出渣量在线检测装置。The utility model relates to the technical field of blast furnace smelting, in particular to an on-line detection device for blast furnace slag output.

背景技术Background technique

高炉炼铁是复杂的系统工程，由于高炉炉缸汇总高温高压和化学侵蚀等恶劣的内部环境，针对炉缸内渣铁流动状态的参数只能依靠间接手段获得。高炉冶炼每吨生铁的渣量是高炉操作的一项重要参数，它的多少反映了矿石的品位和燃料的消耗，在实际生产中难以计量，只能采取理论计算获得，而渣量计算受物料化学成分误差的影响，计算得到的渣量误差较大。Blast furnace ironmaking is a complex system engineering. Due to the harsh internal environment of the blast furnace hearth, such as high temperature, high pressure and chemical erosion, the parameters for the flow state of slag and iron in the hearth can only be obtained by indirect means. The amount of slag per ton of pig iron in blast furnace smelting is an important parameter of blast furnace operation. Its amount reflects the grade of ore and the consumption of fuel. It is difficult to measure in actual production and can only be obtained by theoretical calculation, while the amount of slag is calculated by the material. Due to the influence of chemical composition error, the calculated slag amount has a large error.

然而，现有高炉熔渣的出渣量检测方法包括四种：第一种，采用水渣运输皮带上安装皮带秤计算出渣量，该方式对仪器安装要求较高，维护量较多，成本较高；第二种，通过运输罐车轨道衡称重计量铁水的重量，根据理论渣反推渣量，但这种方式存在严重滞后性、误差较大，且不能即使反应出高炉出铁出渣的实时状况；第三种，利用高炉轮法水渣处理系统变频控制的脱水转筒的电流变化来间接测量高炉出渣量，由于出渣量与脱水转筒的电流之间并不是线性关系，所以该种方法在工况变化剧烈情况下并不能有效检测高炉出渣量，且存在较大滞后性；第四种，依靠有经验的高炉炉长目测，利用人工判定方法的随机性误差较大，不利于高炉生产的精细化、智能化和规范化操作。However, the existing blast furnace slag slag detection methods include four types: the first one is to use a belt scale installed on the water slag transport belt to calculate the slag output. This method requires higher installation of instruments, requires more maintenance, and costs more. The second method is to measure the weight of molten iron by weighing the tank car track scale, and push back the amount of slag according to the theoretical slag. However, this method has serious lag and large errors, and cannot even reflect the blast furnace tapping and slag. Real-time situation; the third is to indirectly measure the slag output of the blast furnace by using the current change of the dehydration drum controlled by the frequency conversion of the blast furnace water slag treatment system. Since the slag output and the current of the dehydration drum are not linear, so This method cannot effectively detect the amount of blast furnace slag when the working conditions change drastically, and there is a large lag; the fourth method relies on the experienced visual inspection of the blast furnace length, and the random error of the manual judgment method is large. It is not conducive to the refined, intelligent and standardized operation of blast furnace production.

实用新型内容Utility model content

鉴于以上所述现有技术的缺点，本实用新型的目的在于提供一种高炉熔渣出渣量在线检测装置，用于解决现有技术中无法实时检测高炉出渣量与流量，导致高炉渣量检测出现滞后性的问题。In view of the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide an on-line detection device for blast furnace slag output, which is used to solve the problem that in the prior art, the blast furnace slag output and flow cannot be detected in real time, resulting in a blast furnace slag output. Detecting problems with hysteresis.

为实现上述目的及其他相关目的，本实用新型提供一种高炉熔渣出渣量在线检测装置，包括In order to achieve the above purpose and other related purposes, the utility model provides an on-line detection device for blast furnace slag output, comprising:

渣量称量装置，其设置于所述高炉出渣沟末端用于实时称重出渣的重量；其中，所述渣量称量装置上设有渣沟工作内衬；A slag weighing device, which is arranged at the end of the blast furnace slag ditch for weighing the slag in real time; wherein, the slag weighing device is provided with a slag ditch working lining;

重力传感器，其安装于混凝土或钢结构平台上，且所述渣量称量装置安装且悬挂于所述重力传感器上；a gravity sensor, which is installed on a concrete or steel structure platform, and the slag weighing device is installed and suspended on the gravity sensor;

数据采集系统，连接于所述重力传感器，用于实时收集所述渣量称量装置变化的重量数据；a data acquisition system, connected to the gravity sensor, for collecting in real time the weight data changed by the slag weighing device;

数据处理及显示系统，连接于所述数据采集系统，用于根据所述高炉熔渣出渣变化的重量数据实时计算并显示高炉的出渣量与出渣流量值。A data processing and display system, connected to the data acquisition system, is used for real-time calculation and display of the slag output and the slag flow value of the blast furnace according to the weight data of the blast furnace slag slag change.

如上所述，本实用新型的高炉熔渣出渣量在线检测装置，具有以下有益效果：As mentioned above, the on-line detection device for blast furnace slag output of the present invention has the following beneficial effects:

通过在渣沟末端设置称量装置实时称重高炉熔渣量的出渣，并提出一种熔渣量及流量在线检测装置，可解决在多种工况变化情况下并有效检测高炉出渣量及流量的技术问题，可以适应高炉炼铁生产复杂工况调节下的高精度高炉出渣量及流量在线检测的要求，为保证高炉平稳顺行提供可靠的判定依据，而且可根据熔渣的流量变化情况，可实时调整高炉冲制水量，针对高炉熔渣处理具有巨大的节能降耗效益。By setting a weighing device at the end of the slag ditch to weigh the slag volume of the blast furnace in real time, and propose an on-line detection device for the slag volume and flow rate, which can solve the problem of changing various working conditions and effectively detect the slag volume of the blast furnace. It can meet the requirements of high-precision blast furnace slag production and flow on-line detection under the complex working conditions of blast furnace ironmaking production, and provide a reliable basis for ensuring the smooth running of the blast furnace. Changes in the situation, the blast furnace flushing water volume can be adjusted in real time, which has huge energy saving and consumption reduction benefits for blast furnace slag treatment.

附图说明Description of drawings

图1显示为本实用新型一种高炉熔渣出渣量在线检测装置结构示意图；Fig. 1 shows the structural representation of a kind of blast furnace slag output on-line detection device of the utility model;

图2显示为本实用新型一种高炉熔渣出渣量在线检测装置的剖视图。FIG. 2 shows a cross-sectional view of an on-line detection device for blast furnace slag output according to the present invention.

元件标号说明：Component label description:

1 渣沟工作内衬1 Slag trench working lining

2 渣沟流嘴2 Slag ditch nozzle

3 渣沟结构平台3 Slag trench structure platform

4 重力传感器4 gravity sensor

5 数据采集系统5 Data acquisition system

6 数据处理及显示系统6 Data processing and display system

7 渣量称重装置7 Slag weighing device

8 高炉熔渣8 blast furnace slag

9 渣沟永久层9 Slag trench permanent layer

10 混凝土柱10 Concrete columns

11 水渣冲制箱11 Water slag brewing box

具体实施方式Detailed ways

以下由特定的具体实施例说明本实用新型的实施方式，熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本实用新型的其他优点及功效。The embodiments of the present invention are described below by specific embodiments, and those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

在以下描述中，参考附图，附图描述了本申请的若干实施例。应当理解，还可使用其他实施例，并且可以在不背离本申请的精神和范围的情况下进行机械组成、结构、电气以及操作上的改变。下面的详细描述不应该被认为是限制性的，并且本申请的实施例的范围仅由公布的专利的权利要求书所限定。这里使用的术语仅是为了描述特定实施例，而并非旨在限制本申请。空间相关的术语，例如“上”、“下”、“左”、“右”、“下面”、“下方”、“下部”、“上方”、“上部”等，可在文中使用以便于说明图中所示的一个元件或特征与另一元件或特征的关系。In the following description, reference is made to the accompanying drawings, which describe several embodiments of the present application. It is to be understood that other embodiments may be utilized and mechanical, structural, electrical, as well as operational changes may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered limiting, and the scope of embodiments of the present application is limited only by the claims of the issued patent. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. Spatially related terms, such as "upper," "lower," "left," "right," "below," "below," "lower," "above," "upper," etc., may be used in the text for ease of description The relationship of one element or feature to another element or feature shown in the figures.

虽然在一些实例中术语第一、第二等在本文中用来描述各种元件，但是这些元件不应当被这些术语限制。这些术语仅用来将一个元件与另一个元件进行区分。例如，第一转向摆动可以被称作第二转向摆动，并且类似地，第二转向摆动可以被称作第一转向摆动，而不脱离各种所描述的实施例的范围。Although in some instances the terms first, second, etc. are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first steering oscillation may be referred to as a second steering oscillation, and similarly, a second steering oscillation may be referred to as a first steering oscillation, without departing from the scope of the various described embodiments.

请参阅图1，本实用新型提供一种高炉熔渣出渣量在线检测装置结构示意图，请参阅图2，为本实用新型一种高炉熔渣出渣量在线检测装置的剖视图，详述如下：Please refer to FIG. 1, the present utility model provides a schematic structural diagram of an on-line detection device for blast furnace slag production, please refer to FIG. 2, which is a cross-sectional view of an on-line detection device for blast furnace slag production of the present invention, detailed as follows:

渣量称量装置7，其设置于所述高炉出渣沟末端用于实时称重出渣的重量；其中，所述渣量称量装置上设有渣沟工作内衬；Aslag weighing device 7, which is arranged at the end of the blast furnace slag ditch for weighing the slag in real time; wherein, the slag weighing device is provided with a working lining of the slag ditch;

重力传感器4，其安装于混凝土或钢结构平台上，且所述渣量称量装置安装且悬挂于所述重力传感器上；Agravity sensor 4, which is installed on a concrete or steel structure platform, and the slag weighing device is installed and suspended on the gravity sensor;

其中，所述重力传感器可为两个，方便渣量称量装置悬挂在下方，同时，采集重力数据时只需求两个重量传感器的和即可，且重力传感器为一种耐腐蚀的高精度传感器，测量精度要求控制在±10kg内。The number of the gravity sensors can be two, which is convenient for the slag weighing device to be suspended below. At the same time, only the sum of the two gravity sensors is required when collecting gravity data, and the gravity sensor is a corrosion-resistant high-precision sensor. , the measurement accuracy is required to be controlled within ±10kg.

数据采集系统5，连接于所述重力传感器，用于实时收集所述渣量称量装置变化的重量数据；Adata acquisition system 5, connected to the gravity sensor, is used to collect the weight data of the slag weighing device in real time;

数据处理及显示系统6，连接于所述数据采集系统，用于根据所述高炉熔渣出渣变化的重量数据实时计算并显示高炉的出渣量与出渣流量值。The data processing anddisplay system 6 is connected to the data acquisition system, and is used for real-time calculation and display of the slag output and slag flow value of the blast furnace according to the weight data of the blast furnace slag slag change.

在本实施例中，由于重力传感器实时检测渣量称量装置的重量，包括出渣之前的渣量称量装置的初始重量，以及高炉出渣后渣量称量装置称取的重量数据(预设采样周期内重量数据)，所述数据处理及显示系统采用移动平均处理称取重量与初始重量，实时计算并显示高炉的出渣量与出渣流量值，其中，所述数据处理及显示系统可为安装程序计算的炉渣重量的计算机、平板、掌上电脑与智能手机等中任意一种。In this embodiment, since the gravity sensor detects the weight of the slag weighing device in real time, it includes the initial weight of the slag weighing device before slag tapping, and the weight data (pre Set the weight data in the sampling period), the data processing and display system adopts moving average processing to weigh the weight and initial weight, calculate and display the slag volume and slag flow value of the blast furnace in real time, wherein, the data processing and display system Any of a computer, tablet, PDA, and smartphone that can calculate the slag weight for the installer.

在上述实施例中，采用混凝土柱10作为支撑件，在混凝土柱上设有沟浇注料永久层9，同时，在沟浇注料永久层上设渣沟，在渣沟的末端设有渣沟流嘴2；另外，在混凝土柱端10部设有混凝土或钢结构平台3上，在平台3上设有重力传感器4。In the above-mentioned embodiment, theconcrete column 10 is used as the supporting member, and the permanent layer 9 of the ditch castable is provided on the concrete column. Mouth 2; In addition, a concrete orsteel structure platform 3 is arranged at theend 10 of the concrete column, and agravity sensor 4 is arranged on theplatform 3.

在另一实施例中，所述高炉出渣沟末端设有渣沟流嘴，其中，渣沟流嘴是被包裹在渣沟内，设有渣沟流嘴是方便从出渣沟流出的熔渣能够顺利到流入到渣量称量装置内。In another embodiment, a slag ditch nozzle is provided at the end of the blast furnace slag ditch. The slag can smoothly flow into the slag weighing device.

在另一实施例中，所述渣量称量装置在远离所述渣沟流嘴的一端采用钢板与耐火材料密封，为防止出渣过程中渣量称重装置7内的熔渣8倒流泄漏。In another embodiment, the end of the slag weighing device is sealed with a steel plate and a refractory material at the end away from the slag ditch nozzle, in order to prevent theslag 8 in theslag weighing device 7 from flowing backward and leaking during the slag tapping process .

在另一实施例中，所述渣沟工作内衬沿出渣的流动方向设有防倒流的倾斜坡度，其中，该倾斜坡度范围在1～3％，防止出渣出现倒流现象，确保其顺利流入后续冲制粒化系统。In another embodiment, the working lining of the slag ditch is provided with an inclined slope for preventing backflow along the flow direction of the slag, wherein the inclination slope ranges from 1 to 3% to prevent the backflow of the slag and ensure the smooth flow of the slag. into the subsequent punching and granulation system.

在另一实施例中，所述渣量称量装置分离设置在所述高炉的出渣沟末端，只要不出现漏渣现象即可，同时，采用分离设置一方面防止出渣过程中渣量称重装置7内的熔渣8倒流泄漏，另一方面便于实时称取流入到渣量称重装置内的熔渣的重量数据。In another embodiment, the slag weighing device is separately arranged at the end of the slag tapping ditch of the blast furnace, as long as there is no slag leakage phenomenon. At the same time, the separation device is adopted to prevent the slag weighing device during the slagging process. Theslag 8 in the weighingdevice 7 leaks back, and on the other hand, it is convenient to weigh the weight data of the slag flowing into the slag weighing device in real time.

在另一实施例中，所述渣量称重装置7下方安装有粒化熔渣的水渣冲制箱11。In another embodiment, a waterslag making box 11 for granulating molten slag is installed below the slagamount weighing device 7 .

在本实施例中，高炉内经主铁沟与铁水分离后的高炉熔渣，经渣沟流嘴流入熔渣流量检测装置，进入水渣冲制粒化系统，高温熔渣经冲制箱的冲渣水冲制粒化后形成渣水混合物，粒化过程产生的蒸汽由水渣排气筒进行高空排放，渣水混合物从水渣沟流入到水渣过滤装置中进行渣水分离，过滤后得到的渣由输送皮带或汽车进行外运，过滤后的热水通过热水泵经热水管路冷却装置冷却后，形成冲渣水，冲渣水再由冲渣泵经冲渣水管路重新泵送至冲制箱，进行循环利用。In this embodiment, the blast furnace slag separated from the molten iron by the main iron ditch in the blast furnace flows into the slag flow detection device through the slag ditch flow nozzle, and enters the water slag punching and granulating system. After the slag water is washed and granulated, a slag-water mixture is formed. The steam generated during the granulation process is discharged from the water slag exhaust pipe at a high altitude. The slag is transported out by the conveyor belt or the car, and the filtered hot water is cooled by the hot water pump through the cooling device of the hot water pipeline to form the slag flushing water, which is then pumped again by the slag flushing pump through the slag flushing water pipeline. To the punching box for recycling.

另外，在上述高炉熔渣出渣量在线检测装置检测方法，包括：In addition, the detection method of the above-mentioned blast furnace slag output on-line detection device includes:

步骤S1，利用渣量称重装置采集高炉出渣前的初始重量；Step S1, using a slag weighing device to collect the initial weight of the blast furnace before slag tapping;

步骤S2，当检测到高炉出渣时，在预设采样周期内实时读取所述渣量称重装置的重量数据；Step S2, when the blast furnace slag is detected, read the weight data of the slag amount weighing device in real time within a preset sampling period;

步骤S3，将所述初始重量与实时采集的重量数据进行移动平均处理，实时计算所述高炉熔渣的出渣量与出渣流量值。Step S3, performing moving average processing on the initial weight and the weight data collected in real time, and calculating the slag output and slag flow rate of the blast furnace slag in real time.

在本实施例中，通过高炉出渣之前采集的渣量称重装置的初始重量，以及高炉出渣之后，在预设采样周期内重量传感器获取到的渣量称重装置的重量数据，通过移动平均法对所述重量数据进行处理(通过平均和移动的平滑作用消除重量数据的干扰)得到高炉熔渣的出渣量与出渣流量值。In this embodiment, the initial weight of the slag weighing device collected before the blast furnace slag removal and the weight data of the slag weighing device acquired by the weight sensor within the preset sampling period after the blast furnace slag removal are used to move the The weight data is processed by the averaging method (the interference of the weight data is eliminated by the smoothing effect of averaging and movement) to obtain the slag output and slag flow rate of the blast furnace slag.

利用n个重量数据并对其进行移动平均处理所得的高炉熔渣的出渣量与出渣流量值如下：The slag output and slag flow value of blast furnace slag obtained by using n weight data and performing moving average processing are as follows:

式(1)、式(2)中，m₀为初始重量，单位kg；m_i为重量数据，i＝1，2，...t，t为采样周期，t≥n；△t为记录n个数据所对应的时间，单位s；单位kg；G_i为出渣流量值，M为出渣量，单位吨/min。In formula (1) and formula (2), m₀ is the initial weight, the unit is kg; m_i is the weight data, i=1, 2, ... t, t is the sampling period, t≥n; Δt is the record The time corresponding to n data, the unit is s; the unit is kg; G_i is the slag flow value, M is the slag amount, the unit is ton/min.

在其他实施例中，在步骤S1之前，还包括：In other embodiments, before step S1, it also includes:

对所述渣量称重装置的渣沟工作内衬进行清理和修补，例如，采用水渣冲制箱对熔渣进行粒化，以打散炉渣，细化均匀水渣粒度，使得渣量称重装置的渣沟工作内衬能够较为精准称量出渣。Clean and repair the working lining of the slag ditch of the slag weighing device, for example, use a water-slag punching box to granulate the molten slag to break up the slag and refine the uniform water-slag particle size, so that the slag can be weighed. The working lining of the slag ditch of the heavy device can accurately measure the slag.

综上所述，本实用新型通过在渣沟末端设置称量装置实时称重高炉熔渣量的出渣，并提出一种熔渣量及流量在线检测装置，可解决在多种工况变化情况下并有效检测高炉出渣量及流量的技术问题，可以适应高炉炼铁生产复杂工况调节下的高精度高炉出渣量及流量在线检测的要求，为保证高炉平稳顺行提供可靠的判定依据，而且可根据熔渣的流量变化情况，可实时调整高炉冲制水量，针对高炉熔渣处理具有巨大的节能降耗效益。所以，本实用新型有效克服了现有技术中的种种缺点而具高度产业利用价值。In summary, the utility model measures the slag discharge of the blast furnace slag amount in real time by setting a weighing device at the end of the slag ditch, and proposes an online detection device for the slag amount and flow rate, which can solve the situation of changing in various working conditions. It can meet the requirements of high-precision on-line detection of blast furnace slag output and flow rate under the adjustment of complex working conditions of blast furnace ironmaking production, and provide a reliable judgment basis for ensuring the smooth running of blast furnace. , and according to the flow change of slag, the blast furnace water volume can be adjusted in real time, which has huge energy saving and consumption reduction benefits for blast furnace slag treatment. Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

上述实施例仅例示性说明本实用新型的原理及其功效，而非用于限制本实用新型。任何熟悉此技术的人士皆可在不违背本实用新型的精神及范畴下，对上述实施例进行修饰或改变。因此，举凡所属技术领域中具有通常知识者在未脱离本实用新型所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本实用新型的权利要求所涵盖。The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims (6)

1. The utility model provides a blast furnace slag output on-line measuring device which characterized in that includes:

the slag quantity weighing device is separately arranged at the tail end of the blast furnace slag discharging groove; wherein, a slag runner working lining is arranged on the slag quantity weighing device;

the gravity sensor is arranged on a concrete or steel structure platform, and the slag quantity weighing device is arranged on and suspended on the gravity sensor and used for weighing the weight of the slag in real time;

the data acquisition system is connected with the gravity sensor and is used for collecting the weight data of the slag quantity weighing device in real time;

and the data processing and displaying system is connected with the data acquisition system and is used for calculating and displaying the slag output and the slag output flow value of the blast furnace in real time according to the weight data of the slag output change of the blast furnace slag.

2. The on-line detection device for the slag discharge quantity of the blast furnace slag according to claim 1, wherein a slag runner spout is arranged at the tail end of the blast furnace slag runner.

3. The on-line detection device for the slag tapping quantity of the blast furnace slag according to claim 2, wherein the slag quantity weighing device is sealed with a refractory material by adopting a steel plate at one end far away from the slag runner nozzle.

4. The on-line detection device for the slag tapping amount of the blast furnace slag according to claim 1, wherein the working lining of the slag runner is provided with an anti-backflow inclined slope along the slag tapping flow direction.

5. The on-line detection device for the slag discharge of the blast furnace slag according to claim 1, wherein a granulated slag flushing box for granulating the slag is arranged below the slag weighing device.

6. The on-line detection device for the slag tapping amount of the blast furnace slag according to claim 5, further comprising: and the slag flushing system is connected with the granulated slag flushing box and is used for adjusting the water volume of the granulated slag flushing box according to the slag discharge and the slag discharge flow value.

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