Intelligent spraying dust-settling system for belt conveyer

Abstract

The utility model belongs to the technical field of belt conveyor, disclose a kind of belt conveyor intelligentization spray dust-settling system.The belt conveyor intelligentization spray dust-settling system of the utility model, along the zonal setting main station control unit and substation control unit of the roadway of belt conveyor, specifically, setting main station control unit at the head unloading place of belt conveyor, along the stretch direction of the body of belt conveyor to tail interval setting several substation control units, control main station according to the dust concentration of first dust concentration sensor monitoring dust concentration exceeds standard, or according to the material on belt conveyor conveying triggers touch sensor action, control main station control in main station control unit setting range spray head carries out spray operation, control substation according to the dust concentration of second dust concentration sensor monitoring dust concentration exceeds standard, control substation control in substation control unit setting range spray head carries out spray operation;Thus, realize the zonal, accurate spray dust-settling of the roadway of belt conveyor.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, and specifically to an intelligent spray dust suppression system for belt conveyors. Background Technology

[0002] As a crucial mode of transportation in coal mines, belt conveyors play a vital role in coal mine production through their safe and efficient operation. However, belt conveyors are prone to generating dust during operation. Spraying dust suppression systems in the roadways where belt conveyors are located can effectively reduce dust concentration, preventing dust explosions and mitigating adverse health effects on underground workers.

[0003] Currently, water curtains are typically installed at fixed locations in the tunnels where belt conveyors are located for concentrated and continuous dust suppression. However, this method of dust suppression has many blind spots and also leads to excessive humidity in the tunnels, water accumulation on the tunnel floor, and serious waste of water resources. Utility Model Content

[0004] The purpose of this invention is to propose an intelligent spray dust suppression system for belt conveyors, which enables zoned and precise spray dust suppression in the roadway where the belt conveyor is located.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] An intelligent spray dust suppression system for a belt conveyor includes a spray device, a main station control unit, and several sub-station control units. The nozzles of the spray device are spaced apart along the extension direction of the belt conveyor. The main station control unit is located at the unloading point at the head of the belt conveyor, and the several sub-station control units are spaced apart along the extension direction from the body to the tail of the belt conveyor.

[0007] The main station control unit includes a control main station, a first dust concentration sensor, and a touch sensor. The trigger end of the touch sensor can abut against the material being transported on the belt conveyor. The control main station is connected to the first dust concentration sensor, the touch sensor, and the control end of the nozzle within the set range of the main station control unit.

[0008] The substation control unit includes a control substation and a second dust concentration sensor. The control substation is connected to the control terminal of the second dust concentration sensor and the nozzle within the set range of the substation control unit.

[0009] Furthermore, the control master station is signal-connected to one of the control substations, and any two control substations are signal-connected to each other.

[0010] Furthermore, the control master station is wirelessly connected to one of the control substations, and any two control substations can be wirelessly connected to each other.

[0011] Furthermore, the spraying device also includes a main water supply line, a main air supply line, a water supply branch line, an air supply branch line, an air-water mixing valve, and a spraying pipeline;

[0012] The main water supply line and the main gas supply line are set along the extension direction of the belt conveyor. A water supply branch line is connected to the main water supply line at a set interval, and a gas supply branch line is connected to the main gas supply line at a set interval.

[0013] The water supply branch and the air supply branch are respectively connected to the two inlets of the air-water mixing valve, and the outlet of the air-water mixing valve is connected to the nozzle via the spray pipe;

[0014] The control terminals of the nozzle are configured with a first solenoid valve and a second solenoid valve. The first solenoid valve is located on the water supply branch, and the second solenoid valve is located on the air supply branch.

[0015] Furthermore, the spraying device also includes a nozzle support frame, which is arranged transversely along the belt conveyor. Several nozzles are installed on the nozzle support frame, and a spray pipe connects the several nozzles on the nozzle support frame.

[0016] Furthermore, the spraying device also includes a water circuit shut-off valve and an air circuit shut-off valve, with the water circuit shut-off valve installed on the water supply branch and the air circuit shut-off valve installed on the air supply branch.

[0017] Furthermore, the spraying device also includes a water filter, which is installed on the water supply branch.

[0018] Furthermore, the master station control unit also includes two first pyroelectric sensors, which are spaced apart along the extension direction of the belt conveyor, and the control master station signal is connected to the first pyroelectric sensors.

[0019] Furthermore, the substation control unit also includes two second pyroelectric sensors, which are spaced apart along the extension direction of the belt conveyor, and the control substation signal is connected to the second pyroelectric sensors.

[0020] Furthermore, the control terminal of the main station is wirelessly connected to each sensor and the control terminal of the nozzles within the set range of the main station control unit; the control terminal of the substation is wirelessly connected to each sensor and the control terminal of the nozzles within the set range of the substation control unit.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model discloses an intelligent spray dust suppression system for belt conveyors. A main control unit and sub-control units are set up along the conveyor's path. Specifically, the main control unit is located at the unloading point at the conveyor's head, and several sub-control units are spaced apart along the conveyor's extension direction from the body to the tail. The main control unit controls the nozzles within its set range to perform spraying operations when the dust concentration exceeds the standard detected by the first dust concentration sensor, or when the material being transported on the conveyor triggers a touch sensor. Similarly, the sub-control units control the nozzles within their set range to perform spraying operations when the dust concentration exceeds the standard detected by the second dust concentration sensor. This achieves zoned and precise spray dust suppression along the conveyor's path. Attached Figure Description

[0023] Figure 1 This is a front view of the intelligent spray dust suppression system for belt conveyors according to an embodiment of this utility model;

[0024] Figure 2 This is a top view of the intelligent spray dust suppression system for a belt conveyor according to an embodiment of this utility model;

[0025] Figure 3 This is a side view of the intelligent spray dust suppression system for a belt conveyor according to an embodiment of this utility model;

[0026] Figure label:

[0027] 1. Belt conveyor; 21. Control master station; 22. First dust concentration sensor; 23. Touch sensor; 231. Trigger terminal; 24. First pyroelectric sensor; 31. Control substation; 32. Second dust concentration sensor; 33. Second pyroelectric sensor; 411. Main water supply line; 412. Branch water supply line; 413. Water circuit shut-off valve; 421. Main gas supply line; 422. Branch gas supply line; 423. Gas circuit shut-off valve; 43. Spray pipeline; 44. Nozzle; 451. First solenoid valve; 452. Second solenoid valve; 46. Nozzle support frame. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Combination Figures 1 to 3 As shown, this utility model proposes an intelligent spray dust suppression system for a belt conveyor, including a spray device, a main station control unit, and n sub-station control units. The nozzles 44 of the spray device are arranged at intervals of 100m along the extension direction of the belt conveyor 1. The main station control unit is located at the unloading point at the head of the belt conveyor 1, and the several sub-station control units are arranged at intervals of 100m along the extension direction from the body to the tail of the belt conveyor 1.

[0031] The main station control unit includes a control main station 21, a first dust concentration sensor 22, and a touch sensor 23. The trigger end 231 of the touch sensor 23 can contact the material being transported on the belt conveyor 1. The control main station 21 is connected to the first dust concentration sensor 22, the touch sensor 23, and the control end of the nozzle 44 within the set range of the main station control unit.

[0032] When the dust concentration exceeds the standard as detected by the first dust concentration sensor 22, or when the trigger terminal 231 of the touch sensor 23 is triggered by the material transported on the belt conveyor 1, the control station 21 controls the nozzles 44 within the set range of the control station control unit to perform spraying operations.

[0033] The substation control unit includes a control substation 31 and a second dust concentration sensor 32. The control substation 31 is connected to the control terminal of the second dust concentration sensor 32 and the nozzle 44 within the set range of the substation control unit.

[0034] When the dust concentration exceeds the standard as detected by the second dust concentration sensor 32, the control substation 31 controls the nozzles 44 within the set range of the substation control unit to perform spraying operations.

[0035] The main station control unit also includes two first pyroelectric sensors 24, which are spaced apart along the extension direction of the belt conveyor 1. The main station 21 is signal-connected to the first pyroelectric sensors 24. When a worker passes through the range set by the main station control unit and is detected by the first pyroelectric sensor 24, the main station 21 triggers the first solenoid valve 451 and the second solenoid valve 452 to close, stopping the spraying. After a 5-second delay following the worker's departure, the main station 21 triggers the first solenoid valve 451 and the second solenoid valve 452 to open, resuming spraying.

[0036] The substation control unit also includes two second pyroelectric sensors 33, which are spaced apart along the extension direction of the belt conveyor 1. The control substation 31 is signal-connected to the second pyroelectric sensors 33. When a worker passes through the range set by the substation control unit and is detected by the second pyroelectric sensors 33, the control substation 31 triggers the first solenoid valve 451 and the second solenoid valve 452 to close, stopping the spraying. After a 5-second delay after the worker passes, the control main station 21 triggers the first solenoid valve 451 and the second solenoid valve 452 to open, resuming spraying.

[0037] The main control station 21 is wirelessly connected via Bluetooth to each sensor (first dust concentration sensor 22, touch sensor 23 and first pyroelectric sensor 24) and the control terminals (first solenoid valve 451 and second solenoid valve 452) of the nozzles 44 within the set range of the main control station control unit; the sub-control station 31 is wirelessly connected via Bluetooth to each sensor (second dust concentration sensor 32 and second pyroelectric sensor 33) and the control terminals (first solenoid valve 451 and second solenoid valve 452) of the nozzles 44 within the set range of the sub-control station control unit.

[0038] The control master station 21 and control substation 31 use Bluetooth wireless communication with the control terminals of the sensors and nozzles 44 in their respective ranges, which reduces the complex wiring work of the system.

[0039] The master control station 21 is signal-connected to one of the control substations 31, and any two control substations 31 can be signal-connected to each other. The master control station 21 is also wirelessly connected to one of the control substations 31, and any two control substations 31 can be wirelessly connected to each other. Specifically, the master control station 21 is wirelessly connected to the nearest control substation 31 via LoRa, and adjacent control substations 31 are wirelessly connected via LoRa. This enables self-organizing network communication between the master control station 21 and each control substation 31. Each control substation 31 can be used as both a control terminal node and a routing node. The master control station 21 can configure and distribute parameters to all control substations 31, resulting in higher system scalability and maintainability.

[0040] The control master station 21 and control substation 31 are powered by either an internal battery or an external power source, and can switch automatically. Each sensor is also powered by either an internal battery or an external power source, and can switch automatically.

[0041] The spraying device also includes a main water supply line 411, a main air supply line 421, a water supply branch line 412, an air supply branch line 422, an air-water mixing valve, and a spray pipe 43. The main water supply line 411 and the main air supply line 421 are arranged along the extension direction of the belt conveyor 1. A water supply branch line 412 is connected to the main water supply line 411 every 100m, and an air supply branch line 422 is connected to the main air supply line 421 every 100m. The water supply branch line 412 and the air supply branch line 422 are respectively connected to the two inlets of the air-water mixing valve, and the outlet of the air-water mixing valve is connected to the nozzle 44 via the spray pipe 43. The control terminals of the nozzle 44 are configured with a first solenoid valve 451 and a second solenoid valve 452. The first solenoid valve 451 is located on the water supply branch line 411, and the second solenoid valve 452 is located on the air supply branch line 422. The main control station 21 controls the opening of the first solenoid valve 451 on the water supply branch 412 connected to the nozzle 44 within the set range of the main control station control unit, so as to realize the spraying operation. The sub-control station 31 controls the opening of the first solenoid valve 451 on the water supply branch 412 connected to the nozzle 44 within the set range of the sub-control station control unit, so as to realize the spraying operation.

[0042] The nozzle support frame 46 is arranged transversely along the belt conveyor 1. The nozzle support frame 46 is suspended from the top of the tunnel and is located on the cross-section of the tunnel. Four nozzles are evenly spaced on the nozzle support frame 46, and a spray pipe 43 connects the four nozzles 44 on the nozzle support frame 46.

[0043] Water is supplied through the main water supply line 411, and the water flows through the water supply branch line 412 to the air-water mixing valve. High-pressure air is supplied through the main air supply line 421, and the high-pressure air flows through the air supply branch line 422 to the air-water mixing valve. The high-pressure air pushes the water to flow through the spray pipe 43 and sprays it out through the nozzle 44. The opening degree of the first solenoid valve 451 and the second solenoid valve 452 can be adjusted to control the water volume and high-pressure air volume according to the dust concentration, so as to adaptively adjust the spray volume.

[0044] A water supply branch 412 is equipped with a water supply shut-off valve 413, and a gas supply branch 422 is equipped with a gas supply shut-off valve 423. The water supply branch 412 is opened and closed by the water supply shut-off valve 413, and the gas supply branch 422 is opened and closed by the gas supply shut-off valve 423.

[0045] A water filter 414 is installed on the water supply branch 412 to filter the water flowing through the water supply branch 412 and prevent impurities in the water from clogging the nozzle 44.

[0046] The present invention has been described in detail above with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the intelligent spray dust suppression system for belt conveyors of this invention. The intelligent spray dust suppression system for belt conveyors of this invention is configured with a main station control unit and sub-station control units along the roadway where the belt conveyor 1 is located. Specifically, the main station control unit is located at the unloading point at the head of the belt conveyor 1, and several sub-station control units are spaced apart along the extension direction from the body to the tail of the belt conveyor 1. When the main station 21 detects that the dust concentration exceeds the standard based on the first dust concentration sensor 22, or when the touch sensor 23 is triggered by the material being transported on the belt conveyor 1, the main station 21 controls the nozzles 44 within the set range of the main station control unit to perform spraying operations. When the sub-station 31 detects that the dust concentration exceeds the standard based on the second dust concentration sensor 32, the sub-station 31 controls the nozzles 44 within the set range of the sub-station control unit to perform spraying operations. In this way, zoned and precise spray dust suppression is achieved in the roadway where the belt conveyor 1 is located.

[0047] Of course, the above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model and should be protected by the present utility model.

Claims

1. An intelligent spray dust suppression system for a belt conveyor, characterized in that, It includes a spraying device, a main station control unit, and several sub-station control units. The nozzles of the spraying device are spaced apart along the extension direction of the belt conveyor. The main station control unit is located at the unloading point at the head of the belt conveyor, and the several sub-station control units are spaced apart along the extension direction from the body to the tail of the belt conveyor. The main station control unit includes a control main station, a first dust concentration sensor, and a touch sensor. The trigger end of the touch sensor can abut against the material being transported on the belt conveyor. The control main station is connected to the first dust concentration sensor, the touch sensor, and the control end of the nozzle within the set range of the main station control unit. The substation control unit includes a control substation and a second dust concentration sensor. The control substation is connected to the control terminal of the second dust concentration sensor and the nozzle within the set range of the substation control unit.

2. The intelligent spray dust suppression system for belt conveyors according to claim 1, characterized in that, The control master station is connected to one of the control substations via signal, and any two control substations can be connected via signal.

3. The intelligent spray dust suppression system for belt conveyors according to claim 2, characterized in that, The control master station is wirelessly connected to one of the control substations, and any two control substations can be wirelessly connected to each other.

4. The intelligent spray dust suppression system for belt conveyors according to claim 1, characterized in that, The spraying device also includes a main water supply line, a main gas supply line, a water supply branch line, a gas supply branch line, a gas-water mixing valve, and a spraying pipeline; The main water supply line and the main gas supply line are set along the extension direction of the belt conveyor. A water supply branch line is connected to the main water supply line at a set interval, and a gas supply branch line is connected to the main gas supply line at a set interval. The water supply branch and the air supply branch are respectively connected to the two inlets of the air-water mixing valve, and the outlet of the air-water mixing valve is connected to the nozzle via the spray pipe; The control terminals of the nozzle are configured with a first solenoid valve and a second solenoid valve. The first solenoid valve is located on the water supply branch, and the second solenoid valve is located on the air supply branch.

5. The intelligent spray dust suppression system for belt conveyors according to claim 4, characterized in that, The spraying device also includes a nozzle support frame, which is arranged laterally along the belt conveyor. Several nozzles are installed on the nozzle support frame, and a spray pipe connects the several nozzles on the nozzle support frame.

6. The intelligent spray dust suppression system for belt conveyors according to claim 4, characterized in that, The spraying device also includes a water circuit shut-off valve and an air circuit shut-off valve. The water circuit shut-off valve is installed on the water supply branch, and the air circuit shut-off valve is installed on the air supply branch.

7. The intelligent spray dust suppression system for belt conveyors according to claim 4, characterized in that, The spraying device also includes a water filter, which is installed on the water supply branch.

8. The intelligent spray dust suppression system for belt conveyors according to claim 1, characterized in that, The main station control unit also includes two first pyroelectric sensors, which are spaced apart along the extension direction of the belt conveyor, and the control main station signal is connected to the first pyroelectric sensors.

9. The intelligent spray dust suppression system for belt conveyors according to claim 1, characterized in that, The substation control unit also includes two second pyroelectric sensors, which are spaced apart along the extension direction of the belt conveyor, and the control substation signal is connected to the second pyroelectric sensors.

10. The intelligent spray dust suppression system for belt conveyors according to any one of claims 1 to 9, characterized in that, The main station wirelessly connects to the control terminals of various sensors and nozzles within the set range of the main station control unit; the substations wirelessly connect to the control terminals of various sensors and nozzles within the set range of the substation control unit.

Images