Mine dust fall system and control method thereof

Abstract

The application discloses a mine dust fall system and a control method thereof, and relates to the field of mine dust fall systems.The system comprises a control terminal, a water supply pipe, a nozzle assembly and a monitoring system, wherein the nozzle assembly comprises a nozzle and a valve, the nozzle is connected with the valve, the nozzle is connected with the water supply pipe, the valve and the monitoring system are respectively connected with a power supply through cables, and the control terminal is connected with the valve and the monitoring system through an optical fiber.The application can monitor the distance between a mobile device and different nozzle assemblies in real time through the monitoring system, and then calculate and judge whether to open the corresponding nozzle assembly through a distance formula; when the mobile device moves away, the corresponding nozzle assembly is automatically controlled to be closed, so that dust is removed and water resources are saved.

Description

Technical Field

[0001] This invention belongs to the technical field of dust suppression devices, and particularly relates to a dust suppression system for mines and its control method. Background Technology

[0002] During mining operations, many toxic and harmful substances are generated, with dust being one of the major hazards, especially in open-pit mines. Dust not only causes occupational diseases such as silicosis, coal mine collapse, graphite lung, and asbestosis, endangering workers' health and safety, but also reduces air quality in and around the work area, impacting the atmospheric environment and water resources. Most existing dust suppression systems rely on water trucks or pipeline switches, which are not only inefficient but also wasteful of water resources. Therefore, a water-saving mining dust suppression system is needed to achieve efficient and low-cost dust suppression.

[0003] Patent document CN1076907A discloses an automatic dust suppression spraying device for underground mineral conveyor belts. It uses two probes mounted on the lower end of a forked suspension frame to provide signals to an electronic automatic control circuit. The control circuit then issues commands to open or close a solenoid valve connected in series on the water supply line based on the dryness or wetness of the minerals. This valve also acts as a power switch for the steel belt disconnect switch mounted on the straight rod of the forked suspension frame. When the forked suspension frame is in a vertical or tilted state, the power supply is automatically disconnected or connected. However, this device does not determine the activation of the dust suppression nozzles based on distance, and its reliance on dryness or wetness makes it unsuitable for dust suppression of vehicles moving on roads. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a dust suppression system for mines and its control method.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a dust suppression system for mines, comprising a control terminal, a water supply pipe, a nozzle assembly, and a monitoring system. The nozzle assembly includes a nozzle and a valve, the nozzle being connected to the valve and the water supply pipe. The valve and the monitoring system are respectively connected to a power source via cables. The control terminal is connected to the valve and the monitoring system via optical fiber.

[0007] Preferably, the water supply pipe and monitoring system are mounted on a support frame, and several nozzle assemblies are mounted on the water supply pipe.

[0008] Preferably, the valve is an electric valve, and a controller is installed on the valve. The valve is electrically connected to a cable through the controller, the controller is connected to an optical fiber, and the controller is electrically connected to the valve.

[0009] A method for controlling a dust suppression system in a mine involves obtaining the distance between the nozzle assembly and the mobile device through a monitoring system, and then substituting this distance into a distance formula to obtain the starting distance of the nozzle assembly.

[0010] Preferably, the distance formula is:

[0011]

[0012] Install one nozzle assembly at each interval S0. Edit the coordinates of the nozzle assemblies sequentially and input them into the control terminal. The coordinates of the first to nth nozzle assemblies are (X1,Y1,Z1), (X2,Y2,Z2)...(Xn-1,Yn-1,Zn-1), (Xn,Yn,Zn).

[0013] The monitoring system (4) detects the real-time location coordinates of the first to m mobile devices as (a1,b1,c1), (a2,b2,c2)...(am-1,bm-1,cm-1), (am,bm,cm);

[0014] Sm_n is the distance between the nth nozzle assembly and the mth mobile device.

[0015] Preferably, the spray radius of the nozzle assembly is...

[0016] Preferably, when Sm_n≤ When the controller energizes the valve, and Sm_n > At that time, the controller de-energizes the valve.

[0017] The beneficial effects of this invention are as follows:

[0018] This invention can monitor the distance between a mobile device and different nozzle components in real time through a monitoring system, and then calculate and determine whether to turn on the corresponding nozzle component using a distance formula; when the mobile device moves away, the corresponding nozzle component is automatically turned off, achieving the effect of dust removal and saving water resources. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of region A of the present invention;

[0021] In the diagram: 1-Control terminal, 11-Fiber optic cable, 2-Water supply pipe, 21-Support frame, 3-Sprinkler assembly, 31-Sprinkler, 32-Valve, 4-Monitoring system, 5-Cable, 6-Controller, 7-Mobile equipment. Detailed Implementation

[0022] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0023] Example:

[0024] like Figure 1-2 As shown, a dust suppression system for a mine includes a control terminal 1, a water supply pipe 2, a nozzle assembly 3, and a monitoring system 4. The nozzle assembly 3 includes a nozzle 31 and a valve 32, with the nozzle 31 connected to the valve 32 and the nozzle 31 connected to the water supply pipe 2. The nozzle 31 is used to spray water to reduce the dust content in the air. The valve 32 and the monitoring system 4 are respectively connected to a power source via cables 5. The control terminal 1 is connected to the valve 32 and the monitoring system 4 via an optical fiber 11. The control terminal 1 is a system including a computer and a signal receiving device; the monitoring system 4 includes a camera and a distance detection radar, including a system based on FCW, capable of measuring the distance between a mobile device 7 and different nozzle assemblies 3 in real time. The technology and related circuit connections between the control terminal 1 and the monitoring system 4 are existing technologies and will not be described further in this application. The mobile device 7 is a vehicle or equipment towed by a vehicle, or other moving objects on the road surface.

[0025] The water supply pipe 2 and monitoring system 4 are mounted on the support frame 21, and several nozzle assemblies 3 are mounted on the water supply pipe 2. Whether the support frame 21 is needed and its height can be determined according to the specific site conditions.

[0026] The valve 32 is an electric valve, and a PCL controller 6 is installed on the valve 32. The valve 32 is electrically connected to the cable 5 through the PCL controller 6. The PCL controller 6 is connected to the optical fiber 11 and is electrically connected to the valve 32.

[0027] The control terminal 1 can control the opening and closing of the PCL controller 6 through the mining fiber optic cable 11. When the PCL controller 6 is open, the PCL controller 6 and the cable 5 are de-energized, and the valve 32 stops operating. When the PCL controller 6 is closed, the cable 5 is energized to make the valve 32 operate, and the nozzle 31 sprays water.

[0028] A method for controlling a dust suppression system in a mine involves obtaining the distance between the nozzle assembly 3 and the mobile device 7 through a monitoring system 4, and then substituting this distance into a distance formula to obtain the starting distance of the nozzle assembly 3.

[0029] The distance formula is:

[0030] The dust suppression system in the mine is installed beside the transportation road. One nozzle assembly 3 is installed at every distance S0. The coordinates of the nozzle assembly 3 are edited and input into the control terminal in sequence. The coordinates of nozzle assembly 3 from 1 to n are (X1,Y1,Z1), (X2,Y2,Z2)...(Xn-1,Yn-1,Zn-1), (Xn,Yn,Zn) in sequence.

[0031] The monitoring system 4 detects the real-time position coordinates of the 1st to mth mobile devices 7 as (a1,b1,c1), (a2,b2,c2)...(am-1,bm-1,cm-1), (am,bm,cm) and transmits the coordinates to the control terminal 1 at a frequency of 3 seconds.

[0032] Sm_n is the distance between the nth nozzle assembly 3 and the mth mobile device 7.

[0033] Specifically, the distances between the first mobile device 7 and each nozzle assembly 3 are S1_1, S1_2, ..., S1_n, respectively.

[0034]

[0035]

[0036] ...

[0037]

[0038]

[0039] The distances between the second mobile device 7 and each nozzle assembly 3 are S2_1, S2_2, ..., S2_n, respectively.

[0040]

[0041]

[0042] ...

[0043]

[0044]

[0045] ...

[0046] The distances between the (m-1)th mobile device 7 and each nozzle assembly 3 are: Sm-1_1, Sm2_2, ..., Sm_n, respectively.

[0047]

[0048]

[0049]

[0050]

[0051] The distances between the m-th mobile device 7 and each nozzle assembly 3 are Sm_1, Sm_2, ..., Sm_n, respectively.

[0052]

[0053]

[0054] ...

[0055]

[0056]

[0057] The same applies to other mobile devices 7.

[0058] The spray radius of the nozzle assembly 3 is This ensures that the dust suppression boundaries of two adjacent nozzle assemblies 3 basically overlap, guaranteeing the dust suppression effect.

[0059] Set the condition Sm_n≤ in control terminal 1 At that time, PCL controller 6 energizes valve 32 to operate, when Sm_n > At this time, the PCL controller 6 de-energizes the valve 32, and the nozzle 31 stops spraying water.

Claims

1. A control method for a dust suppression system in a mine, characterized in that: The dust suppression system in the mine includes a control terminal (1), a water supply pipe (2), a nozzle assembly (3), and a monitoring system (4). The nozzle assembly (3) includes a nozzle (31) and a valve (32). The nozzle (31) is connected to the valve (32) and the nozzle (31) is connected to the water supply pipe (2). The valve (32) and the monitoring system (4) are respectively connected to the power supply via cables (5). The control terminal (1) is connected to the valve (32) and the monitoring system (4) via optical fiber (11). The valve (32) is an electric valve, and a controller (6) is installed on the valve (32). The valve (32) is electrically connected to the cable (5) through the controller (6). The controller (6) is connected to the optical fiber (11). The controller (6) is electrically connected to the valve (32). The control method of the dust suppression system in the mine is to obtain the distance between the nozzle assembly (3) and the mobile device (7) through the monitoring system (4), and substitute this distance into the distance formula to obtain the starting distance of the nozzle assembly (3); The distance formula is: Sm_n= ; Install a nozzle assembly (3) at intervals of S0. Edit the coordinates of the nozzle assembly (3) and input them into the control terminal (1). The coordinates of the first to nth nozzle assemblies (3) are (X1,Y1,Z1), (X2,Y2,Z2)...(Xn-1,Yn-1,Zn-1), (Xn,Yn,Zn). The monitoring system (4) detects the real-time location coordinates of the 1st to mth mobile devices (7) as (a1,b1,c1), (a2,b2,c2) ... (am-1,bm-1,cm-1), (am,bm,cm); Sm_n is the distance between the nth nozzle assembly (3) and the mth mobile device (7); The water supply pipe (2) and monitoring system (4) are mounted on the support frame (21), and several nozzle assemblies (3) are mounted on the water supply pipe (2); When Sm_n≤ When the controller (6) energizes the valve (32) to operate, when Sm_n > At that time, the controller (6) de-energizes the valve (32).

2. The control method for a mine dust suppression system as described in claim 1, characterized in that: The spray radius of the nozzle assembly (3) is .

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