CN112761707A - Integrated preparation system of active agent solution for underground coal mine spraying dust fall - Google Patents

Integrated preparation system of active agent solution for underground coal mine spraying dust fall Download PDF

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CN112761707A
CN112761707A CN202110068361.XA CN202110068361A CN112761707A CN 112761707 A CN112761707 A CN 112761707A CN 202110068361 A CN202110068361 A CN 202110068361A CN 112761707 A CN112761707 A CN 112761707A
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active agent
agent solution
liquid level
ball valve
storage tank
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CN112761707B (en
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周群
秦波涛
王海涛
李会桢
李新龙
侯晋
石华
黄惠香
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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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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
    • E21F5/04—Spraying barriers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
    • E21F5/06—Fluids used for spraying

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
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  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

本发明公开了一种煤矿井下喷雾降尘用活性剂溶液一体化制备系统，包括清水稳定供给系统、活性剂定量负压抽吸与混合系统、活性剂溶液自动加压系统和PLC控制器四个部分，清水稳定供给系统为活性剂定量负压抽吸与混合系统提供所需水流，形成稳定负压抽吸活性剂，接着通过混合器制备浓度均匀的活性剂溶液，并通过活性剂溶液自动加压系统加压，为煤矿井下采掘工作面提供混合均匀的活性剂降尘喷雾溶液。本发明系统操作简单、自动化程度高，能实现自动供水、活性剂自动准确添加、混合、喷雾加压于一体的活性剂降尘溶液高效制备。

Figure 202110068361

The invention discloses an integrated preparation system of an active agent solution for spray dust reduction in coal mines, comprising four parts: a clean water stable supply system, a quantitative negative pressure suction and mixing system for the active agent, an automatic pressurization system for the active agent solution and a PLC controller. , the clean water stable supply system provides the required water flow for the active agent quantitative negative pressure suction and mixing system to form a stable negative pressure suction active agent, and then prepares the active agent solution with uniform concentration through the mixer, and is automatically pressurized by the active agent solution The system is pressurized to provide a well-mixed active agent dust-reducing spray solution for the underground mining face of the coal mine. The system of the invention has the advantages of simple operation and high degree of automation, and can realize the efficient preparation of the active agent dust-reducing solution which integrates automatic water supply, automatic and accurate addition, mixing, spraying and pressurization of the active agent.

Figure 202110068361

Description

Integrated preparation system of active agent solution for underground coal mine spraying dust fall
Technical Field
The invention relates to the technical field of mine dust control, in particular to an integrated preparation system of an active agent solution for underground spraying dust fall of a coal mine.
Background
Coal still occupies the leading position in the Chinese energy structure, but more than 90 percent of the coal is in an underground mining form, and the underground dust generation amount is also greatly increased along with the high mechanization of the mining mode. Coal mine underground water spraying is widely applied due to the advantages of economy, easiness in operation and the like, but due to high hydrophobicity of coal dust, the water spraying dust settling efficiency is generally low, and particularly for respiratory dust. In order to improve the wetting property of water, the dust catching capacity of the underground spraying solution can be effectively improved by adding the surfactant. However, the existing active agent is added in a manual mixing manner, so that the labor intensity of workers is improved, and meanwhile, the prepared active agent solution has low accuracy and cannot fully exert the dust settling capacity of the active agent solution. To address this problem, CN101251025A discloses that the dosing pump is used to achieve active agent addition, however, the dosing pump cannot achieve small active agent addition; CN102748063A discloses that underground compressed air is used as power to add an active agent solution, however, compressed air is easily affected by other wind using places, and the pressure is suddenly changed, so that a stable power source cannot be formed, and the active agent cannot be accurately and stably added. In order to realize automatic and accurate addition of the active agent, an active agent addition system which is reliable in operation and strong in automation capacity is urgently needed to be developed.
Disclosure of Invention
The invention aims to provide an integrated preparation system of an active agent solution for underground spray dust fall of a coal mine, which is simple to operate, efficient, automatic, accurate in control and convenient to maintain.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: an integrated preparation system of an active agent solution for spray dust fall in a coal mine comprises a clear water stable supply system, an active agent quantitative negative pressure suction and mixing system, an active agent solution automatic pressurization system and a PLC (programmable logic controller);
the clean water stable supply system comprises a water supply pipeline, an electric ball valve I, an electric ball valve II, a liquid level meter I, a clean water storage tank, a relay I and a variable frequency centrifugal pump, wherein the water supply pipeline, the electric ball valve I and the clear water liquid storage tank are combined together by adopting a pressure-resistant rubber pipe I through mining quick joint, the water supply pipeline, the electric ball valve II and the clear water liquid storage tank are combined together by adopting a pressure-resistant rubber pipe II through mining quick joint, the liquid level meter I is arranged in the clear water liquid storage tank, the electric ball valve I, the electric ball valve II, the liquid level meter I and the relay I are respectively connected with the PLC, the liquid level meter I is used for collecting liquid level signals at corresponding positions in the clear water liquid storage tank and sending the liquid level signals to the PLC, the PLC sends control instructions to the electric ball valve I and the electric ball valve II after receiving the liquid level signals transmitted by the liquid level meter I, the relay I controls the work of the variable-frequency centrifugal pump according to the control instruction of the PLC;
the active agent quantitative negative pressure suction and mixing system comprises a pure active agent box, a Venturi suction device and a static mixer, wherein a liquid inlet of the Venturi suction device is connected with an outlet of a clear water liquid storage box through a variable frequency centrifugal pump, a suction port of the Venturi suction device is connected with an outlet of the pure active agent box, a liquid discharge port of the Venturi suction device is connected with an inlet of the static mixer, an electric regulating valve and a numerical flow meter are further arranged between the pure active agent box and the Venturi suction device, and the electric regulating valve and the numerical flow meter are respectively connected with a PLC (programmable logic controller);
automatic pressurization system of active agent solution include active agent solution liquid reserve tank, level gauge II, water quality filter, spraying force (forcing) pump and relay II, static mixer's exit linkage active agent solution liquid reserve tank, water quality filter, spraying force (forcing) pump adopt withstand voltage rubber tube to connect gradually, level gauge II sets up in active agent solution liquid reserve tank, and level gauge II, relay II are connected with the PLC controller respectively, and level gauge II is used for gathering active agent solution liquid reserve tank relevant position's level signal and sending for the PLC controller, and the PLC controller sends control command to relay I, electrical control valve and numerical flow meter after receiving the level signal that II transmissions of level gauge come, relay II basis the control command of PLC controller controls spraying force (forcing) pump's work.
Preferably, the pure active agent box, the Venturi suction device and the static mixer are connected through a pressure-resistant rubber pipe, and the active agent solution storage box, the water quality filter and the spray pressure pump are connected through the pressure-resistant rubber pipe.
Preferably, the flow range of the variable frequency centrifugal pump is 50-400L/min.
Preferably, the negative pressure suction amount range of the Venturi suction device is less than or equal to 20L/h.
Preferably, the electric ball valve I and the electric ball valve II are opened or closed simultaneously.
Preferably, electric ball valve I, electric ball valve II, level gauge I, level gauge II, relay I, relay II, frequency conversion centrifugal pump, electrical control valve, numerical flowmeter, spraying force (forcing) pump are the explosion-proof type.
More preferably, the liquid level meter I and the liquid level meter II are both magnetic floating ball type liquid level meters.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the integrated preparation system for the active agent solution for spray dust fall in the coal mine, disclosed by the invention, an automatic control system consisting of a PLC (programmable logic controller), an electric ball valve, a relay, an electric regulating valve, a numerical flow meter and a liquid level meter is utilized, so that the automatic accurate addition of the active agent can be realized, the efficient preparation and small-dose adjustment of the spray dust fall active agent solution are realized, and the problems that the traditional manual mixing is time-consuming and labor-consuming, and a constant delivery pump and air pressure addition are unstable are effectively solved.
2. The clean water stable supply system designed by the invention can realize continuous and stable supply of dust-falling water, and avoids the problem that stable power cannot be provided for a Venturi tube due to unstable water flow caused by water consumption in other places under a coal mine.
3. According to the active agent solution integrated preparation system for spraying and dust falling in the underground coal mine, different suction capacities are provided for the Venturi suction device by adjusting the rotating speed of the variable-frequency centrifugal pump, and meanwhile, the precise supply of active agents with different concentrations can be realized by controlling the electric control valve and combining with the numerical flow meter.
Drawings
FIG. 1 is a schematic diagram of an integrated preparation system of an active agent solution for spray dust fall in a coal mine;
in the figure, 1-a water supply pipeline, 2-an electric ball valve I, 3-a pressure-resistant rubber pipe I, 4-an electric ball valve II, 5-a pressure-resistant rubber pipe II, 6-a liquid level meter I, 7-a clear water storage tank, 8-a relay I, 9-a variable frequency centrifugal pump, 10-a pure active agent tank, 11-an electric regulating valve, 12-a numerical flow meter, 13-a Venturi suction device, 14-a relay II, 15-a static mixer, 16-an active agent solution storage tank, 17-a liquid level meter II, 18-a water filter, 19-a spray pressure pump and 20-a PLC (programmable logic controller).
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in figure 1, the integrated preparation system of the active agent solution for spray dust fall in the underground coal mine comprises a clear water stable supply system, an active agent quantitative negative pressure suction and mixing system, an active agent solution automatic pressurization system and a PLC (programmable logic controller).
The stable supply system of clear water include supply channel 1, electric ball valve I2, electric ball valve II 4, magnetic floating ball formula level gauge I6, clear water liquid reserve tank 7, relay I8, frequency conversion centrifugal pump 9, wherein adopt withstand voltage rubber tube I3 to combine together through mining quick-joint between supply channel 1, electric ball valve I2, the clear water liquid reserve tank 7, adopt withstand voltage rubber tube II 5 to combine together through mining quick-joint between supply channel 1, electric ball valve II 4, the clear water liquid reserve tank 7, magnetic floating ball formula level gauge I6 sets up in clear water liquid reserve tank 7, electric ball valve I2, electric ball valve II 4, magnetic floating ball formula level gauge I6, relay I8 adopt the terminal line to be connected with PLC controller 20 respectively, magnetic floating ball formula level gauge I6 is used for gathering the liquid level signal of corresponding position in clear water liquid reserve tank 7 and sends PLC controller 20 for, PLC controller 20 is after receiving the liquid level signal that magnetic floating ball formula level gauge I6 transmitted And the electric ball valve II 4 sends a control instruction, and the relay I8 controls the work of the variable frequency centrifugal pump 9 according to the control instruction of the PLC 20.
Active agent ration negative pressure suction and hybrid system include pure active agent case 10, venturi suction device 13, static mixer 15, venturi suction device 13's inlet passes through the export that frequency conversion centrifugal pump 9 is connected clear water liquid reserve tank 7, venturi suction device 13's suction opening passes through the export that pure active agent case 10 is connected to withstand voltage rubber tube, venturi suction device 13's leakage fluid dram passes through the entry that static mixer 15 is connected to withstand voltage rubber tube, still be provided with electrical control valve 11 and numerical flowmeter 12 between pure active agent case 10 and the venturi suction device 13, electrical control valve 11 and numerical flowmeter 12 adopt the terminal line to be connected with PLC controller 20 respectively.
The automatic active agent solution pressurization system comprises an active agent solution storage tank 16, a magnetic floating ball type liquid level meter II 17, a water quality filter 18, a spraying pressurization pump 19 and a relay II 14, wherein an outlet of the static mixer 15 is connected with the active agent solution storage tank 16, the water quality filter 18 and the spraying pressurization pump 19 are sequentially connected through pressure-resistant rubber pipes, the magnetic floating ball type liquid level meter II 17 is arranged in the active agent solution storage tank 16, the magnetic floating ball type liquid level meter II 17 and the relay II 14 are respectively connected with a PLC (programmable logic controller) 20 through terminal lines, the magnetic floating ball type liquid level meter II 17 is used for acquiring liquid level signals of corresponding positions in the active agent solution storage tank 16 and sending the liquid level signals to the PLC 20, the PLC 20 sends control instructions to the relay I8, the electric regulating valve 11 and the numerical flow meter 12 after receiving the liquid level signals transmitted by the magnetic floating ball type liquid level meter II 17, the relay II 14 controls the operation of the spray pressurizing pump 19 according to the control instruction of the PLC 20.
The flow range of the variable-frequency centrifugal pump 9 is 50-400L/min; the negative pressure suction range of the Venturi suction device 13 is less than or equal to 20L/h; the spray pressurizing pump 19 can adjust the pressure of the water for dust fall within the range of 0-20 MPa.
For safety production in a coal mine, the electric ball valve I2, the electric ball valve II 4, the magnetic floating ball type liquid level meter I6, the magnetic floating ball type liquid level meter II 17, the relay I8, the relay II 14, the variable frequency centrifugal pump 9, the electric regulating valve 11, the numerical flow meter 12 and the spray pressure pump 19 are all explosion-proof.
The working process is as follows:
when the underground coal mine excavation working face is mined, the relay II 14 controls the spray pressurizing pump 19 to work to pressurize the active agent solution for dust fall. When the solution quantity of the active agent solution storage tank 16 is lower than that of the magnetic floating ball type liquid level meter II 17, the magnetic floating ball type liquid level meter II 17 controls the opening of the relay I8 through the PLC 20, the relay I8 controls the variable frequency centrifugal pump 9 to work, the variable frequency centrifugal pump 9 extracts water solution from the clear water storage tank 7 to provide stable water supply quantity for the Venturi pumping device 13, the active agent in the stable negative pressure pumping pure active agent tank 10 is formed, small-dose adjustment is carried out through the electric regulating valve 11 and the numerical flow meter 12, uniform mixing of the active agent and clear water is achieved through the static mixer 15, then the prepared active agent solution enters the active agent solution storage tank 16, after the active agent solution does not pass through the magnetic floating ball type liquid level meter II 17, the electric signal of the active agent solution is transmitted to the PLC 20, and the relay I8 is closed. After the water yield in the clear water liquid reserve tank 7 is less than magnetic ball formula level gauge I6, its signal of telecommunication transmits PLC controller 20, and for the guarantee output is stable, open electronic ball valve I2 and electronic ball valve II 4 simultaneously, supply channel 1 supplies water to clear water liquid reserve tank 7, and the water level is higher than magnetic ball formula level gauge I6, and its signal of telecommunication transmits PLC controller 20, closes electronic ball valve I2 and electronic ball valve II 4 simultaneously. When the underground coal mine excavation working face is not mined, the PLC 20 controls the closing relay II 14 to close the spray pressure pump 19.
The first embodiment is as follows:
when the coal face of the underground coal mine normally cuts coal, the active agent dust-settling solution (with the concentration of 0.03 wt%) needs to be pressurized by 5MPa for spray dust-settling, and the water consumption is 200L/min. The method comprises the following specific steps: the frequency conversion centrifugal pump 9 is started to lead the flow rate to be 300L/min so as to ensure that the solution in the dust settling water tank can meet the requirement of spraying dust settling on the coal face, meanwhile, when water is supplied to the activator solution storage tank 16 at a rate of 300L/min in order to prepare an activator solution having a concentration of 0.03 wt%, the venturi suction device 13 is required to continuously achieve a stable supply of 5.4L/h from the pure active agent tank 10, by adjusting the electric control valve 11 and combining the reading of the numerical flow meter 12, the supply amount of the active agent in the Venturi suction device 13 is stabilized at 5.4L/h, the preparation of 0.03 wt% active agent solution is realized through a static mixer 15, the prepared active agent solution is supplied to an active agent solution storage tank 16 from the bottom (water flow impact foaming prevention), and finally the active agent solution is pressurized to 5MPa through a spray pressurizing pump 19 and conveyed to a working surface for spray dust settling.
Embodiment two:
when the coal face of the underground coal mine normally cuts coal, the active agent dust-settling solution (with the concentration of 0.05 wt%) needs to be pressurized at 6MPa for spray dust-settling, and the water consumption is 300L/min. The method comprises the following specific steps: the frequency conversion centrifugal pump 9 is started to lead the flow rate to be 400L/min so as to ensure that the solution in the dust settling water tank can meet the requirement of spraying dust settling on the coal face, meanwhile, when water is supplied to the activator solution storage tank 16 at a rate of 400L/min in order to prepare an activator solution with a concentration of 0.05 wt%, the venturi suction device 13 is required to continuously achieve a stable supply of 12L/h from the pure active agent tank 10, by adjusting the electric control valve 11 and combining the reading of the numerical flow meter 12, the supply amount of the active agent in the Venturi suction device 13 is stabilized at 12L/h, the preparation of 0.05 wt% active agent solution is realized through a static mixer 15, the prepared active agent solution is supplied to an active agent solution storage tank 16 from the bottom (water flow impact foaming prevention), and finally the active agent solution is pressurized to 6MPa through a spray pressurizing pump 19 and conveyed to a working surface for spray dust settling.

Claims (7)

1.一种煤矿井下喷雾降尘用活性剂溶液一体化制备系统，其特征在于，包括清水稳定供给系统、活性剂定量负压抽吸与混合系统、活性剂溶液自动加压系统和PLC控制器四个部分；1. an integrated preparation system of active agent solution for spray dust reduction in coal mines, is characterized in that, comprises clear water stable supply system, active agent quantitative negative pressure suction and mixing system, active agent solution automatic pressurization system and PLC controller four part; 所述的清水稳定供给系统包括供水管路(1)、电动球阀Ⅰ(2)、电动球阀Ⅱ(4)、液位计Ⅰ(6)、清水储液箱(7)、继电器Ⅰ(8)、变频离心泵(9)，其中供水管路(1)、电动球阀Ⅰ(2)、清水储液箱(7)之间采用耐压胶管Ⅰ(3)通过矿用快接组合在一起，供水管路(1)、电动球阀Ⅱ(4)、清水储液箱(7)之间采用耐压胶管Ⅱ(5)通过矿用快接组合在一起，所述液位计Ⅰ(6)设置在清水储液箱(7)中，所述电动球阀Ⅰ(2)、电动球阀Ⅱ(4)、液位计Ⅰ(6)、继电器Ⅰ(8)分别与PLC控制器(20)连接，所述液位计Ⅰ(6)用于采集清水储液箱(7)中相应位置的液位信号并发送给PLC控制器(20)，PLC控制器(20)在接收到液位计Ⅰ(6)传输来的液位信号后向电动球阀Ⅰ(2)、电动球阀Ⅱ(4)发出控制指令，所述继电器Ⅰ(8)根据所述PLC控制器(20)的控制指令对变频离心泵(9)的工作进行控制；The clean water stable supply system includes a water supply pipeline (1), an electric ball valve I (2), an electric ball valve II (4), a liquid level gauge I (6), a clean water storage tank (7), and a relay I (8) , variable frequency centrifugal pump (9), wherein the water supply pipeline (1), the electric ball valve I (2), and the clean water storage tank (7) are combined with a pressure-resistant rubber hose I (3) through a quick connection for water supply. The pipeline (1), the electric ball valve II (4), and the clean water storage tank (7) are combined with a pressure-resistant rubber hose II (5) through a mine quick connection. The liquid level gauge I (6) is set at the In the clean water storage tank (7), the electric ball valve I (2), the electric ball valve II (4), the liquid level gauge I (6), and the relay I (8) are respectively connected with the PLC controller (20). The liquid level gauge I (6) is used to collect the liquid level signal at the corresponding position in the clean water storage tank (7) and send it to the PLC controller (20). The PLC controller (20) receives the liquid level gauge I (6) After the transmitted liquid level signal, a control command is sent to the electric ball valve I (2) and the electric ball valve II (4). The relay I (8) controls the frequency conversion centrifugal pump (9) according to the control command of the PLC controller (20). ) to control the work; 所述的活性剂定量负压抽吸与混合系统包括纯活性剂箱(10)、文丘里抽吸装置(13)、静态混合器(15)，所述文丘里抽吸装置(13)的进液口通过变频离心泵(9)连接清水储液箱(7)的出口，文丘里抽吸装置(13)的抽吸口连接纯活性剂箱(10)的出口，文丘里抽吸装置(13)的排液口连接静态混合器(15)的入口，所述纯活性剂箱(10)与文丘里抽吸装置(13)之间还设置有电动调节阀(11)和数值流量计(12)，电动调节阀(11)与数值流量计(12)分别与PLC控制器(20)连接；The active agent quantitative negative pressure suction and mixing system includes a pure active agent tank (10), a venturi suction device (13), and a static mixer (15). The liquid port is connected to the outlet of the clean water storage tank (7) through the variable frequency centrifugal pump (9), the suction port of the Venturi suction device (13) is connected to the outlet of the pure active agent tank (10), and the Venturi suction device (13) is connected to the outlet of the pure active agent tank (10). ) is connected to the inlet of the static mixer (15), and between the pure active agent tank (10) and the venturi suction device (13), an electric regulating valve (11) and a numerical flowmeter (12) are also provided ), the electric regulating valve (11) and the numerical flow meter (12) are respectively connected with the PLC controller (20); 所述的活性剂溶液自动加压系统包括活性剂溶液储液箱(16)、液位计Ⅱ(17)、水质过滤器(18)、喷雾加压泵(19)和继电器Ⅱ(14)，所述静态混合器(15)的出口连接所述活性剂溶液储液箱(16)，所述活性剂溶液储液箱(16)、水质过滤器(18)、喷雾加压泵(19)依次连接，所述液位计Ⅱ(17)设置在活性剂溶液储液箱(16)中，所述液位计Ⅱ(17)、继电器Ⅱ(14)分别与PLC控制器(20)连接，所述液位计Ⅱ(17)用于采集活性剂溶液储液箱(16)中相应位置的液位信号并发送给PLC控制器(20)，PLC控制器(20)在接收到液位计Ⅱ(17)传输来的液位信号后向继电器Ⅰ(8)、电动调节阀(11)与数值流量计(12)发出控制指令，所述继电器Ⅱ(14)根据所述PLC控制器(20)的控制指令对喷雾加压泵(19)的工作进行控制。The active agent solution automatic pressurization system includes an active agent solution liquid storage tank (16), a liquid level meter II (17), a water quality filter (18), a spray pressurization pump (19) and a relay II (14), The outlet of the static mixer (15) is connected to the active agent solution storage tank (16), the active agent solution storage tank (16), the water filter (18), and the spray pressurizing pump (19) are in sequence connected, the liquid level meter II (17) is arranged in the active agent solution storage tank (16), the liquid level meter II (17) and the relay II (14) are respectively connected with the PLC controller (20), so The liquid level meter II (17) is used to collect the liquid level signal at the corresponding position in the active agent solution liquid storage tank (16) and send it to the PLC controller (20), and the PLC controller (20) receives the liquid level meter II (17) After the transmitted liquid level signal, a control command is sent to the relay I (8), the electric regulating valve (11) and the numerical flow meter (12). The relay II (14) is based on the PLC controller (20) The control instruction of the spray pressurizing pump (19) controls the work. 2.根据权利要求1所述的一种煤矿井下喷雾降尘用活性剂溶液一体化制备系统，其特征在于，所述纯活性剂箱(10)、文丘里抽吸装置(13)、静态混合器(15)之间采用耐压胶管连接，所述活性剂溶液储液箱(16)、水质过滤器(18)、喷雾加压泵(19)之间采用耐压胶管连接。2. The integrated preparation system of active agent solution for spray dust reduction in coal mines according to claim 1, characterized in that, the pure active agent tank (10), the venturi suction device (13), the static mixer (15) are connected by a pressure-resistant rubber hose, and the active agent solution liquid storage tank (16), the water filter (18), and the spray pressure pump (19) are connected by a pressure-resistant rubber hose. 3.根据权利要求1所述的一种煤矿井下喷雾降尘用活性剂溶液一体化制备系统，其特征在于，所述变频离心泵(9)的流量范围是50-400L/min。3 . The integrated preparation system for active agent solution for spray dust reduction in coal mines according to claim 1 , wherein the flow rate range of the variable frequency centrifugal pump (9) is 50-400 L/min. 4 . 4.根据权利要求1所述的一种煤矿井下喷雾降尘用活性剂溶液一体化制备系统，其特征在于，所述文丘里抽吸装置(13)负压抽吸量范围是≤20L/h。4 . The integrated preparation system of active agent solution for spray dust reduction in coal mines according to claim 1 , characterized in that, the negative pressure suction volume range of the venturi suction device ( 13 ) is ≤ 20L/h. 5.根据权利要求1所述的一种煤矿井下喷雾降尘用活性剂溶液一体化制备系统，其特征在于，所述电动球阀Ⅰ(2)与电动球阀Ⅱ(4)同时开启或关闭。5 . The integrated preparation system of active agent solution for spray dust reduction in coal mines according to claim 1 , wherein the electric ball valve I (2) and the electric ball valve II (4) are simultaneously opened or closed. 6 . 6.根据权利要求1所述的一种煤矿井下喷雾降尘用活性剂溶液一体化制备系统，其特征在于，所述电动球阀Ⅰ(2)、电动球阀Ⅱ(4)、液位计Ⅰ(6)、液位计Ⅱ(17)、继电器Ⅰ(8)、继电器Ⅱ(14)、变频离心泵(9)、电动调节阀(11)、数值流量计(12)、喷雾加压泵(19)均为防爆型。6. The integrated preparation system of active agent solution for spray dust reduction in coal mines according to claim 1, characterized in that the electric ball valve I (2), the electric ball valve II (4), the liquid level gauge I (6 ), liquid level meter II (17), relay I (8), relay II (14), variable frequency centrifugal pump (9), electric control valve (11), numerical flow meter (12), spray pressurization pump (19) All are explosion-proof. 7.根据权利要求6所述的一种煤矿井下喷雾降尘用活性剂溶液一体化制备系统，其特征在于，所述液位计Ⅰ(6)与液位计Ⅱ(17)均为磁浮球式液位计。7 . The integrated preparation system for active agent solution for spray dust reduction in coal mines according to claim 6 , wherein the liquid level gauge I (6) and the liquid level gauge II (17) are both of the magnetic levitation ball type. 8 . level gauge.
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