WO2017177703A1 - 一种浮选药剂乳化控制添加设备 - Google Patents

一种浮选药剂乳化控制添加设备 Download PDF

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Publication number
WO2017177703A1
WO2017177703A1 PCT/CN2016/109363 CN2016109363W WO2017177703A1 WO 2017177703 A1 WO2017177703 A1 WO 2017177703A1 CN 2016109363 W CN2016109363 W CN 2016109363W WO 2017177703 A1 WO2017177703 A1 WO 2017177703A1
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Prior art keywords
flotation
dosing
emulsification
tank
metering pump
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English (en)
French (fr)
Inventor
桂夏辉
邢耀文
曹亦俊
李臣威
杨自立
王东岳
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China University of Mining and Technology Beijing CUMTB
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China University of Mining and Technology Beijing CUMTB
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Priority to RU2018111527A priority Critical patent/RU2685589C1/ru
Priority to AU2016403035A priority patent/AU2016403035B2/en
Priority to CA2995426A priority patent/CA2995426C/en
Publication of WO2017177703A1 publication Critical patent/WO2017177703A1/zh
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/145—Feed mechanisms for reagents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines

Definitions

  • the invention relates to a flotation medicament emulsification control adding device, in particular to a flotation medicament emulsification control adding device used in the coal preparation field.
  • Flotation is the separation of useful minerals and unwanted minerals under the action of chemicals, depending on the nature of the mineral surface.
  • the main factors affecting the flotation process are the amount of pulp, the concentration of pulp, the composition of the grain size and the pharmaceutical system.
  • the flotation process has many influencing factors and is difficult to control. With the rapid development of detection technology, control technology and actuators in recent years, the flotation automatic control technology has also been innovated and developed.
  • the coal preparation plant generally uses the flotation method to sort 0.5-0mm slime.
  • the coal slurry accounts for 20% to 30% of the total amount of washed raw coal.
  • the product index is controlled by adjusting the pharmaceutical system.
  • the index control is based on the production experience of the operator. There is no theoretical guidance.
  • the manual adjustment method is neither accurate nor timely, and directly affects the economic benefits of the coal preparation plant.
  • many researchers at home and abroad have carried out optimization flotation process to improve the automation of flotation process. Due to the complexity of flotation process control, many researchers have studied the process control of flotation from different angles.
  • Quantitative dosing using a metering pump to directly add the agent to each dosing point, this method can effectively count the drug consumption, and accurately add each point. There is a problem that the dosing amount is not affected by the slurry flow rate and concentration fluctuation, resulting in Waste of medicine.
  • the method can accurately control the total amount of the drug to be added, and the purpose of saving the medicament can be achieved after emulsification.
  • a flotation agent emulsification control adding device having a simple structure, a foam layer monitoring, a medicament metering, a medicament emulsification preparation and an accurate point addition function, and an automatic control or a remote control of a point-dosing dosing is provided.
  • the flotation agent emulsification control adding device of the present invention comprises a flotation feed flow concentration detecting system, and the flotation feed flow concentration detecting system comprises a flow meter and a density disposed on the flotation machine feeding pipe.
  • the utility model is characterized in that: the flotation machine feeding pipeline is connected with a control system through a line, and the control system is respectively connected with a medicament metering and emulsifying multi-point adding system and a flotation foam product monitoring system;
  • the control system includes a PLC control cabinet and a host computer connected to each other;
  • the pharmaceutical metering and emulsifying multi-point adding system comprises a medicine box, a metering pump, an emulsification pump, a medicinal metering pump and a medicament buffer tank
  • the medicine tank is composed of a collector tank and a foaming agent tank
  • the collector tank and the The top of the foaming tank is respectively provided with a dosing port
  • the side of the collecting agent tank and the foaming agent tank are respectively provided with an overflow pipe
  • the overflow pipe is provided with a valve
  • a plurality of output of the collector tank and the foaming agent tank After the pipeline is summarized, it is connected with the input end of the emulsification pump, and a plurality of output pipelines are provided with a shut-off valve on the summary line
  • each output pipeline of the collector tank and the foaming agent tank is respectively provided with a metering pump, and two metering pumps
  • a valve is arranged on the output pipe of the side, and a clean water pipe is connected to the input end of the e
  • the flotation foam product monitoring system is a surveillance camera disposed on the flotation device, and the surveillance camera is connected to the upper computer.
  • the collector tank, the foamer tank, and the overflow pipe of the medicament buffer tank are connected to each other and discharged.
  • the dosing point of the flotation process is 1-3, and the dosing ratio of each dosing point is input on the upper computer, and the upper machine controls the dosing pump to add the prepared medicament to each dosing point.
  • the monitoring camera disposed on the flotation device monitors the condition of the foam product in the flotation device in real time, and adjusts the dosing system according to the foam condition and the product index to control the product quality.
  • Each of the metering pump and the dosing pump has a safety valve and a ball valve on both sides of the input end and the output section, and the input end of the metering pump and the dosing pump are respectively provided
  • the filter, the metering pump and the dosing metering pump are respectively connected with a buffer and a pressure gauge through a valve.
  • Figure 1 shows the flotation feed detection
  • Figure 2 is a multi-point addition of a pharmaceutical metering emulsion
  • Figure 3 is a schematic diagram of the control of the flotation process parameters
  • 1-flow meter 2-density meter, 3-emulsifier pump, 4-metering pump, 5-dosing metering pump, 6-collector tank, 7-foaming tank, 8-agent buffer tank, 9-Clear water flow meter, 10-electric valve, 11-upper machine, 12-PLC control cabinet, 13-detection system, 14-control system, 15-dosing system, 16-flotation equipment, 17-surveillance camera.
  • the pharmaceutical metering and emulsifying multi-point adding system comprises a medicine box, a metering pump 4, an emulsification pump 3, a medicinal metering pump 5 and a medicament buffer tank 8, and the medicine tank is composed of a collector tank.
  • a charging port is respectively arranged on the top of the collector tank 6 and the foaming agent tank 7, and a plurality of overflow pipes are respectively arranged on the sides of the collector tank 6 and the foaming agent tank 7,
  • Each of the overflow pipes is provided with a ball valve and a flow meter, and the overflow tanks of the collector tank 6, the foaming agent tank 7 and the medicament buffer tank 8 are connected to each other, the collector tank 6 and the foaming agent tank
  • the output line of 7 is connected to the input end of the emulsification pump 3, and the collector tank 6
  • a plurality of metering pumps 4 are respectively disposed on the output lines of the foaming agent tank 7, and the metering pumps 4 are reserved for each other, and the metering pump 4 respectively feeds the collector and the foaming agent into the emulsification pump 3, and the emulsification pump 3
  • a clear water pipeline is connected to the input end, and a clear water flow meter 9 and an electric valve 10 are respectively disposed on the clear water pipe.
  • the output end of the emulsification pump 3 is connected to the medicament buffer tank 8 through the pipeline, and the medicament buffer tank 8 is respectively provided with plus The medicine port and the overflow pipe with the valve, the output end of the medicament buffer tank 8 are respectively connected with a plurality of dosing points through the pipeline, and the dosing pump 5 is provided on the pipes of the plurality of dosing points, and the emulsifying pump will be The medicament and water are emulsified and then fed into the medicament storage tank 8, and the emulsified medicament is added to the different dosing points through the metering pump 5;
  • Each of the metering pump 4 and the dosing pump 5 has a safety valve and a ball valve on both sides of the input end and the output section, and the input end of the metering pump 4 and the dosing pump 5 are respectively provided with a filter, a metering pump 4 and the dosing metering pump 5 are respectively connected with a buffer and a pressure gauge through a valve;
  • the concentration of the emulsified medicament can be controlled by the metering pump 4 and the electric valve 10 to be a certain value, and the dosing point of the flotation process is 1-3, and the dosing ratio of each dosing point is input on the upper machine 11
  • the upper computer 11 controls the dosing and metering pump 5 to add the prepared medicament to each dosing point, and according to the amount of dry coal mud measured by the flotation feed flow concentration detecting system 13, the dosing amount of the coal is input in the upper machine 11. And the ratio of the medicament, the upper computer 11 transmits the calculation result to the PLC control cabinet 12, and the PLC control cabinet 12 controls the connected metering pump 4 to perform the dosing amount control;
  • the flotation foam product monitoring system is a surveillance camera 17 disposed on the flotation device 16, the surveillance camera 17 is connected to the upper computer, and the surveillance camera 17 monitors the condition of the foam product in the flotation device 16 in real time, according to the foam condition and the product.
  • the indicators adjust the dosing system to control product quality;
  • the control system includes a PLC control cabinet 12 and a host computer 11 that are connected to each other.
  • the amount of dry coal slurry in the flotation feed can guide the total dosing amount in the flotation process, and the dosing amount, the dosing ratio and the dosing amount at each point according to the amount of dry coal slurry in the flotation feed. control.
  • the consumption of the medicament is K (kg/t)
  • the ratio of the drug is n is fixed
  • the amount of water added to the emulsification pump 3 is Q 1
  • only the input of the medicament at the control interface is K
  • the drug ratio n, the ratio of the drug dosing point d 1 : d 2 : d 3 The dosing amount at each point can be calculated, and the calculation process is as follows.
  • control methods and test results can be automatically detected and controlled, and the system can be incorporated into the centralized control system.
  • the control system is switched to the manual state, manual operation is performed, the dosage, the proportion of the medicament and the dosage of each point are tracked, and the optimal pharmaceutical system is sought to guide the automatic control of the medicament.

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Abstract

一种浮选药剂乳化控制添加设备，适用于选煤领域中使用。包括浮选入料流量浓度检测系统（13），浮选机入料管道通过线路连接有控制系统（14），控制系统（14）分别连接有药剂计量乳化多点添加系统和浮选泡沫产品监控系统；所述控制系统（14）包括相互连接的PLC控制柜（12）和上位机（11）；所述药剂计量乳化多点添加系统包括药剂箱、计量泵（4）、乳化泵（3）、加药计量泵（5）和药剂缓冲罐（8）；所述浮选泡沫产品监控系统为设置在浮选设备（16）上的监控摄像头（17），监控摄像头（17）与上位机（11）相连接。其实现药剂自动添加，有效减少药剂的浪费，浮选机无需人工加药，实现浮选机无人看守，减少人工需要，降低浮选成本。

Description

一种浮选药剂乳化控制添加设备 技术领域
本发明涉及一种浮选药剂乳化控制添加设备，尤其适用于选煤领域中使用的浮选药剂乳化控制添加设备。
背景技术
浮选是在药剂的作用下，依据矿物表面性质的差异，实现有用矿物和无用矿物分离的目的。影响浮选过程的主要因素有矿浆量、矿浆浓度、粒度组成和药剂制度等。浮选过程的影响因素多，控制难度大。随着近年来检测技术、控制技术、执行机构的迅速发展，浮选自动控制技术也得到了创新和发展。
选煤厂普遍采用浮选法分选0.5-0mm煤泥。在炼焦煤选煤厂和无烟煤选煤厂，煤泥占入洗原煤总量的20％～30％。浮选过程中，通过调整药剂制度进行控制产品指标，指标控制全凭操作工人的生产经验，毫无理论指导依据，人工调节方式既不准确也不及时，直接影响选煤厂的经济效益。为了克服人工加药的盲目性和浮选指标控制的滞后性，国内外很多研究者进行了优化浮选过程，提高浮选过程自动化的研究。由于浮选过程控制的复杂性，很多科研工作者分别从不同的角度对浮选的过程控制进行研究。
手动加药，根据产品质量，手动的在各个加药点上进行药剂添加，控制加药量大小的方法是依靠阀门开度。存在的主要问题为受人为因素干扰。
定量加药，采用计量泵直接将药剂添加到各个加药点，该方法可有效的统计药剂耗量，对各点进行准确添加，存在问题为加药量不受矿浆流量和浓度波动影响，造成药剂浪费。
定量乳化加药，将药剂按照一定的量进行乳化，乳化后直接加入各个加药点，各个加药点的药剂用量依靠手动控制。该方法可准确控制加药总量，乳化后可达到节省药剂的目的。但是也存在加药量不受矿浆流量和浓度波动影响，造成药剂浪费，各个加药点依靠人工控制，存在添加的不准确性。
近年来我国在浮选药剂添加和控制方面取得了很大的进步，但多存在定量和乳化加药的基础上，未能将加药量和入料量关联起来和各个加药点的准确添加。
发明内容
针对上述技术的不足之处，提供一种结构简单，具备泡沫层监控，药剂计量，药剂乳化制备和各点准确添加功能，可以自动控制或者远程控制分点加药的浮选药剂乳化控制添加设备。
为实现上述技术目的，本发明的浮选药剂乳化控制添加设备，包括浮选入料流量浓度检测系统，浮选入料流量浓度检测系统包括设置在浮选机入料管道上的流量计和密度计，其特征在于：浮选机入料管道通过线路连接有控制系统，控制系统分别连接有药剂计量乳化多点添加系统和浮选泡沫产品监控系统；
所述控制系统包括相互连接的PLC控制柜和上位机；
所述药剂计量乳化多点添加系统包括药剂箱、计量泵、乳化泵、加药计量泵和药剂缓冲罐，所述药剂箱由捕收剂罐和起泡剂罐构成，捕收剂罐和起泡剂罐顶部分别设有加药口，捕收剂罐和起泡剂罐的侧面分别设有溢流管，溢流管上设有阀门，捕收剂罐和起泡剂罐的多条输出管路汇总后与乳化泵的输入端相连接，多条输出管路汇总线路上设有截止阀，捕收剂罐和起泡剂罐的每一条输出管路上分别设有计量泵，计量泵两侧的输出管路上设有阀门，乳化泵的输入端上连接有清水管路，清水管路上分别设有清水流量计和电动阀门，乳化泵的输出端通过管路与药剂缓冲罐相连接，药剂缓冲罐上分别设有加药口和设有阀门的溢流管，药剂缓冲罐的输出端通过管道分别连接有多个加药点，多个加药点的管道上均设有加药计量泵，根据浮选入料流量浓度检测系统测出的干煤泥量，在上位机中输入吨煤加药量和药剂比例，上位机将计算结果传到PLC控制柜，PLC控制柜控制相连接的计量泵进行加药量控制；
所述浮选泡沫产品监控系统为设置在浮选设备上的监控摄像头，监控摄像头与上位机相连接。所述捕收剂罐、起泡剂罐和药剂缓冲罐的溢流管相互连接排出。所述浮选过程的加药点为1-3个，在上位机上输入各加药点的加药比例，上位机控制加药计量泵将制备好的药剂添加到各个加药点。所述设在浮选设备上的监控摄像头实时监控浮选设备内泡沫产品的状况，根据泡沫状况和产品指标对加药制度进行调整，控制产品质量。所述每个计量泵和加药计量泵的输入端和输出段两侧均设有安全阀和球阀，计量泵和加药计量泵的输入端上分别设有过 滤器，计量泵和加药计量泵上分别通过阀门顺序连接有缓冲器和压力表。
有益效果：利用流量计、密度计和上位机控制加药的分量，克服人工加药的盲目性和不准确性，可以实现药剂准确自动添加，有效减少药剂的浪费；利用监控摄像头实时在线显示浮选产品质量，累计浮选入料量和精煤量，根据产品质量指导加药量，浮选产品质量实时在线显示，随时对产品质量进行调整；浮选机无需人工加药，实现浮选机无人看守，减少人工需要，降低浮选成本。
附图说明：
图1为浮选入料检测。
图2为药剂计量乳化多点添加；
图3为浮选工艺参数控制原理图；
图中：1-流量计，2-密度计，3-乳化泵、4-计量泵、5-加药计量泵、6-捕收剂罐、7-起泡剂罐、8-药剂缓冲罐、9-清水流量计、10-电动阀门、11-上位机，12-PLC控制柜，13-检测系统、14-控制系统、15-加药系统、16-浮选设备，17-监控摄像头。
具体实施方式：
下面结合附图对本发明的具体实施方式作进一步详细描述：
本发明的浮选药剂乳化控制添加设备，包括浮选入料流量浓度检测系统13，如图1所示，浮选入料流量浓度检测系统13包括设置在浮选机入料管道上的流量计1和密度计2，通过浮选入料检测，分别检测出入料流量Q(m3/h)和密度ρ(kg/m3)，检测数据可以得到浮选入料的干煤泥量b＝Q.ρ/1000，单位t；浮选机入料管道通过线路连接有控制系统14，控制系统14分别连接有药剂计量乳化多点添加系统15和浮选泡沫产品监控系统；
如图2和图3所示，所述药剂计量乳化多点添加系统包括药剂箱、计量泵4、乳化泵3、加药计量泵5和药剂缓冲罐8，所述药剂箱由捕收剂罐6和起泡剂罐7构成，捕收剂罐6和起泡剂罐7顶部分别设有加药口，捕收剂罐6和起泡剂罐7的侧面分别设有多根溢流管，每根溢流管上均设有球阀和流量计，所述捕收剂罐6、起泡剂罐7和药剂缓冲罐8的溢流管相互连接排出，捕收剂罐6和起泡剂罐7的输出管路与乳化泵3的输入端相连接，捕收剂罐6 和起泡剂罐7的输出管路上分别设有多个计量泵4，计量泵4之间互为备用，计量泵4分别将捕收剂和起泡剂给入乳化泵3，乳化泵3的输入端上连接有清水管路，清水管路上分别设有清水流量计9和电动阀门10，乳化泵3的输出端通过管路与药剂缓冲罐8相连接，药剂缓冲罐8上分别设有加药口和设有阀门的溢流管，药剂缓冲罐8的输出端分别通过管道分别连接有多个加药点，多个加药点的管道上均设有加药计量泵5，乳化泵将药剂和水乳化后给入药剂储存箱8，乳化好的药剂通过计量泵5加入不同加药点；
所述每个计量泵4和加药计量泵5的输入端和输出段两侧均设有安全阀和球阀，计量泵4和加药计量泵5的输入端上分别设有过滤器，计量泵4和加药计量泵5上分别通过阀门顺序连接有缓冲器和压力表；
由计量泵4和电动阀门10可控制配置的乳化药剂的浓度为一定值，所述浮选过程的加药点为1-3个，在上位机11上输入各加药点的加药比例，上位机11控制加药计量泵5将制备好的药剂添加到各个加药点，根据浮选入料流量浓度检测系统13测出的干煤泥量，在上位机11中输入吨煤加药量和药剂比例，上位机11将计算结果传到PLC控制柜12，PLC控制柜12控制相连接的计量泵4进行加药量控制；
所述浮选泡沫产品监控系统为设置在浮选设备16上的监控摄像头17，监控摄像头17与上位机相连接，监控摄像头17实时监控浮选设备16内泡沫产品的状况，根据泡沫状况和产品指标对加药制度进行调整，控制产品质量；
所述控制系统包括相互连接的PLC控制柜12和上位机11。
如图3所示，浮选入料的干煤泥量可以指导浮选过程中总的加药量，根据浮选入料干煤泥量进行加药量、加药比例和各点加药量控制。对于长期生产的煤泥和固定药剂,药剂耗量为K(kg/t)，药比为n为定值；乳化泵3加入水量为Q1，只需要在控制界面输入药剂耗量为K，药比n，各加药点药剂比例d1:d2:d3。可计算出各点加药量，计算过程如下。计量泵4加入的捕收剂体积为V1(L)，起泡剂体积V2(L)，V1＝n*V2，乳化后药剂体积浓度为
Figure PCTCN2016109363-appb-000001
以3个加药点为例，各加药点的药剂比例为d1:d2:d3；上位机计算出各点的加药量分别为，第 一个点：
Figure PCTCN2016109363-appb-000002
第二个点：
Figure PCTCN2016109363-appb-000003
第三个点：
Figure PCTCN2016109363-appb-000004
PLC控制柜12控制计量泵5将对应体积的药剂加入加药点。
控制需要满足一个条件，即：C1为定值，V1+V2+Q1＝V3+V4+V5。
上述控制方法和检测结果可以进行自动检测和控制，可以将系统纳入集中控制系统中。
当入浮煤质发生变化，将控制系统切换在手动状态下，进行手动操作，跟踪加药量、药剂比例和各点加药量，寻求最佳药剂制度指导药剂自动控制。

Claims (5)

  1. 一种浮选药剂乳化控制添加设备，包括浮选入料流量浓度检测系统(13)，浮选入料流量浓度检测系统(13)包括设置在浮选机入料管道上的流量计(1)和密度计(2)，其特征在于：浮选机入料管道通过线路连接有控制系统(14)，控制系统(14)分别连接有药剂计量乳化多点添加系统(15)和浮选泡沫产品监控系统；
    所述控制系统包括相互连接的PLC控制柜(12)和上位机(11)；
    所述药剂计量乳化多点添加系统包括药剂箱、计量泵(4)、乳化泵(3)、加药计量泵(5)和药剂缓冲罐(8)，所述药剂箱由捕收剂罐(6)和起泡剂罐(7)构成，捕收剂罐(6)和起泡剂罐(7)顶部分别设有加药口，捕收剂罐(6)和起泡剂罐(7)的侧面分别设有溢流管，溢流管上设有阀门，捕收剂罐(6)和起泡剂罐(7)的多条输出管路汇总后与乳化泵(3)的输入端相连接，多条输出管路汇总线路上设有截止阀，捕收剂罐(6)和起泡剂罐(7)的每一条输出管路上分别设有计量泵(4)，计量泵(4)两侧的输出管路上设有阀门，乳化泵(3)的输入端上连接有清水管路，清水管路上分别设有清水流量计(9)和电动阀门(10)，乳化泵(3)的输出端通过管路与药剂缓冲罐(8)相连接，药剂缓冲罐(8)上分别设有加药口和设有阀门的溢流管，药剂缓冲罐(8)的输出端通过管道分别连接有多个加药点，多个加药点的管道上均设有加药计量泵(5)，根据浮选入料流量浓度检测系统(13)测出的干煤泥量，在上位机(11)中输入吨煤加药量和药剂比例，上位机(11)将计算结果传到PLC控制柜(12)，PLC控制柜(12)控制相连接的计量泵(4)进行加药量控制；
    所述浮选泡沫产品监控系统为设置在浮选设备(16)上的监控摄像头(17)，监控摄像头(17)与上位机相连接。
  2. 根据权利要求1所述的浮选药剂乳化控制添加设备，其特征在于：所述捕收剂罐(6)、起泡剂罐(7)和药剂缓冲罐(8)的溢流管相互连接排出。
  3. 根据权利要求1所述的浮选药剂乳化控制添加设备，其特征在于：所述浮选过程的加药点为1-3个，在上位机(11)上输入各加药点的加药比例，上位机(11)控制加药计量泵(5)将制备好的药剂添加到各个加药点。
  4. 根据权利要求1所述的浮选药剂乳化控制添加设备，其特征在于：所述设在浮选设备(16)上的监控摄像头(17)实时监控浮选设备(16)内泡沫产品的状况，根据泡沫状况和产品指标对加药制度进行调整，控制产品质量。
  5. 根据权利要求1所述的浮选药剂乳化控制添加设备，其特征在于：所述每个计量泵(4)和加药计量泵(5)的输入端和输出段两侧均设有安全阀和球阀，计量泵(4)和加药计量泵(5)的输入端上分别设有过滤器，计量泵(4)和加药计量泵(5)上分别通过阀门顺序连接有缓冲器和压力表。
PCT/CN2016/109363 2016-04-13 2016-12-12 一种浮选药剂乳化控制添加设备 Ceased WO2017177703A1 (zh)

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