Mine dust fall system and control method thereof

Abstract

The invention discloses a mine dust fall system and a control method thereof.The system comprises a control terminal, a water supply pipe, a spray head assembly and a monitoring system, the spray head assembly comprises a spray head and a valve, the spray head is connected with the valve, the spray head is connected with the water supply pipe, and the valve and the monitoring system are connected with a power source through cables; the control terminal is connected with the valve and the monitoring system through optical fibers. According to the invention, the monitoring system can monitor the distance between the mobile device and different nozzle assemblies in real time, and then the distance formula is used for calculating and judging whether the corresponding nozzle assembly is started or not; when the mobile equipment is far away, the corresponding spray head assembly is automatically controlled to be closed, and the effects of removing dust and saving water resources are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of dust suppression devices, and in particular relates to a mine dust suppression system and a control method thereof. Background Art

[0002] In the process of mining production, many toxic and harmful substances are produced, among which dust is one of the main hazards, especially in open-pit mines. Dust not only causes occupational diseases such as silicosis, coal lung, graphite lung, asbestosis, etc., endangering the health and life safety of workers, but also reduces the air quality of the working area and its surrounding environment, affecting the atmospheric environment, water resources, etc. Most of the existing dust reduction systems are in the form of sprinkler trucks or pipeline switches, which not only have low dust reduction efficiency, but also seriously waste water resources. Therefore, in order to achieve dust reduction effects efficiently and at low cost, a mine dust reduction system that saves water resources is needed.

[0003] The patent document with the announcement number CN1076907A discloses an automatic spray dust prevention device for underground mineral belt conveyors, which provides signals to the electronic automatic control circuit through two probes installed at the lower end of the fork-shaped suspension frame, and the automatic control circuit issues instructions to open or close the electromagnetic valve connected in series to the water supply pipeline according to the dryness or wetness of the minerals, and the power switch of the steel belt disconnector installed on the straight rod of the fork-shaped suspension frame automatically disconnects or connects the power supply when the fork-shaped suspension frame is in a vertical or inclined state. However, the device does not judge the opening of the dust prevention nozzle based on the distance, and is not suitable for dust prevention of vehicles moving on the road based on the dryness or wetness. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a mine dust reduction system and a control method thereof.

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

[0006] A mine dust reduction system provided by the present invention includes 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 is connected to the valve, and the nozzle is connected to the water supply pipe. The valve and the monitoring system are respectively connected to a power supply via a cable, and the control terminal is connected to the valve and the monitoring system via an optical fiber.

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

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

[0009] A control method for a mine dust suppression system obtains the distance between a nozzle assembly and a mobile device through a monitoring system, and substitutes the distance into a distance formula to obtain a method for obtaining a starting distance of the nozzle assembly.

[0010] Preferably, the distance formula is:

[0011]

[0012] Install a nozzle assembly at a distance S0, edit the coordinates of the nozzle assembly and input them into the control terminal in sequence. The coordinates of the nozzle assemblies No. 1 to No. n are (X1, Y1, Z1), (X2, Y2, Z2)...(Xn-1, Yn-1, Zn-1), (Xn, Yn, Zn) in sequence.

[0013] The monitoring system (4) detects the real-time position coordinates of the mobile devices No. 1 to No. m, which are (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 water spray radius of the nozzle assembly is

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

[0017] The beneficial effects of the present invention are:

[0018] The present invention can monitor the distance between the mobile device and different nozzle assemblies in real time through a monitoring system, and then determine whether to turn on the corresponding nozzle assembly through a distance formula calculation; when the mobile device moves away, the corresponding nozzle assembly is automatically controlled to close, achieving the effect of dust removal and saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0021] In the figure: 1-control terminal, 11-optical fiber, 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 DESCRIPTION

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

[0023] Example:

[0024] like Figure 1-2 As shown, a mine dust reduction system 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 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 the power supply through a cable 5, and the control terminal 1 is connected to the valve 32 and the monitoring system 4 through 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 the FCW system, which can measure the distance between the mobile device 7 and different nozzle assemblies 3 in real time. The technology and related circuit connection between the control terminal 1 and the monitoring system 4 are existing technologies and will not be repeated in this application. The mobile device 7 is an object moving on the road, such as a vehicle and equipment towed by the vehicle.

[0025] The water supply pipe 2 and the monitoring system 4 are arranged on the support frame 21, and a plurality of nozzle assemblies 3 are arranged on the water supply pipe 2. Whether the support frame 21 needs to be arranged and the arrangement height thereof can be determined according to the specific conditions on site.

[0026] The valve 32 is an electric valve, a PCL controller 6 is provided on the valve 32 , the valve 32 is electrically connected to the cable 5 via the PCL controller 6 , the PCL controller 6 is connected to the optical fiber 11 , and the PCL controller 6 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 optical fiber 11. When the PCL controller 6 is disconnected, the PCL controller 6 and the cable 5 are powered off, and the valve 32 no longer operates. When the PCL controller 6 is closed, the cable 5 is powered on to operate the valve 32, and the nozzle 31 sprays water.

[0028] A control method for a mine dust suppression system obtains the distance between a nozzle assembly 3 and a mobile device 7 through a monitoring system 4, and substitutes the distance into a distance formula to obtain a method for obtaining a start-up distance of the nozzle assembly 3.

[0029] The distance formula is:

[0030] The mine dust suppression system is installed beside the transport road. A nozzle assembly 3 is installed at a distance S0. The coordinates of the nozzle assembly 3 are edited and input into the control terminal in sequence. The coordinates of the nozzle assembly 3 No. 1 to No. 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 mobile devices 7 No. 1 to m, respectively (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 3s / time;

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

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

[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,

[0040]

[0041]

[0042] …

[0043]

[0044]

[0045] …

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

[0047]

[0048]

[0049]

[0050]

[0051] The distances between the mth mobile device 7 and each nozzle assembly 3 are: Sm_1, Sm_2...Sm_n,

[0052]

[0053]

[0054] …

[0055]

[0056]

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

[0058] The water spray radius of the nozzle assembly 3 is The dust reduction boundaries of two adjacent nozzle assemblies 3 are basically overlapped to ensure the dust reduction effect.

[0059] Set at control terminal 1 when Sm_n≤ When Sm_n> When the PCL controller 6 cuts off the power to the valve 32, the nozzle 31 stops spraying water.

Claims

1. A mine dust suppression system, characterized by: The invention comprises a control terminal (1), a water supply pipe (2), a nozzle assembly (3) and a monitoring system (4); the nozzle assembly (3) comprises a nozzle (31) and a valve (32); the nozzle (31) is connected to the valve (32); the nozzle (31) is connected to the water supply pipe (2); the valve (32) and the monitoring system (4) are respectively connected to a power source via a cable (5); and the control terminal (1) is connected to the valve (32) and the monitoring system (4) via an optical fiber (11).

2. A mine dust suppression system according to claim 1, characterized in that: The water supply pipe (2) and the monitoring system (4) are arranged on a support frame (21), and a plurality of nozzle assemblies (3) are arranged on the water supply pipe (2).

3. A mine dust suppression system according to claim 1, characterized in that: The valve (32) is an electric valve. A controller (6) is provided on the valve (32). The valve (32) is electrically connected to the cable (5) via the controller (6). The PCL controller (6) is connected to the optical fiber (11). The controller (6) is electrically connected to the valve (32).

4. A method for controlling a mine dust suppression system according to any one of claims 1 to 3, characterized in that: A method for obtaining the distance between a nozzle assembly (3) and a mobile device (7) through a monitoring system (4), and substituting the distance into a distance formula to obtain the start-up distance of the nozzle assembly (3).

5. A mine dust suppression system point control method as claimed in claim 4, characterized in that: The distance formula is: A nozzle assembly (3) is installed at a distance S0, and the coordinates of the nozzle assembly (3) are edited and input into the control terminal (1) in sequence. The coordinates of the nozzle assemblies (3) No. 1 to No. n are (X1, Y1, Z1), (X2, Y2, Z2) ... (Xn-1, Yn-1, Zn-1), (Xn, Yn, Zn) in sequence. The monitoring system (4) detects the real-time position coordinates of the mobile devices (7) No. 1 to No. m, which are (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).

6. A mine dust suppression system as claimed in claim 5, characterized in that: The water spray radius of the nozzle assembly (3) is 7. A mine dust suppression system as claimed in claim 5, characterized in that: When the When the controller (6) energizes the valve (32), When the valve (32) is powered off, the controller (6) de-energizes the valve (32).

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