A new type of railway dust suppression spraying device
By controlling the inlet and outlet pipelines with solenoid valves, the problem of insensitive drum rotation in existing railway dust suppression spraying devices has been solved. This enables sensitive hook-stop spraying and efficient utilization of the liquid, simplifies the device structure, and facilitates modification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANZHOU SKYLINE ENVIRONMENTAL PROTECTION CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-02
AI Technical Summary
The existing railway dust suppression spraying devices have rollers that are not sensitive enough to rotate and have a complex structure, which makes it difficult to stop spraying with the hook.
The system uses solenoid valves to control the inlet and outlet pipelines. A photoelectric detection system and a programmable controller enable precise control of the inlet and outlet solenoid valves, replacing the rotation of the drum to achieve hook-stop spraying.
It improves the sensitivity and response speed of the hook stop spraying, reduces pesticide waste, has a simple structure, and is easy to retrofit existing equipment.
Smart Images

Figure CN224308679U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dust suppressant spraying devices, specifically relating to a new type of railway dust suppressant spraying device. Background Technology
[0002] Currently, dust suppressant spraying devices are used on coal transportation lines in my country to reduce coal dust pollution along the route. Existing swing-arm type dust suppressant spraying devices use drum rotation to stop spraying at the hook; however, the drum rotation is not sensitive enough due to the gearbox drive, and the structure is complex. Therefore, a solenoid valve-controlled railway dust suppressant hook-and-cable spraying device is proposed to solve the above problems. Utility Model Content
[0003] The purpose of this invention is to provide a new type of railway dust suppression spraying device to solve the problems of insufficient roller rotation and complex structure in the existing roller rotation and stop spraying structure.
[0004] The technical solution of this utility model is: a novel railway dust suppression spraying device, including a swing arm truss and a photoelectric detection system. The swing arm truss is equipped with a spray pipe, and two liquid supply pipes are connected to the spray pipe. The two liquid supply pipes are connected in parallel and then connected to the liquid tank through a liquid supply hose. The liquid supply pipe is equipped with an inlet solenoid valve. The photoelectric detection system and the inlet solenoid valve are respectively connected to the controller.
[0005] As a further improvement of this utility model, two return pipes are also connected to the spray pipe. The two return pipes are connected in parallel and then connected to the medicine tank through a return hose. A return solenoid valve is provided on the return pipe. The return solenoid valve is connected to the controller.
[0006] As a further improvement of this utility model, the liquid supply pipe and the liquid return pipe are respectively arranged on both sides of the spray pipe.
[0007] As a further improvement of this utility model, the swing arm truss is provided with multiple hollow holes.
[0008] The beneficial effects of this utility model are:
[0009] 1. This utility model optimizes the hook-and-stop spraying method based on the existing swing-arm type dust suppressant spraying device, and uses the opening and closing of the liquid inlet solenoid valve to replace the rotation of the drum to achieve hook-and-stop spraying. This utility model is equipped with two parallel liquid supply pipes, and the two liquid inlet solenoid valves work simultaneously to ensure that the liquid inlet solenoid valves can respond in a timely manner at train speed.
[0010] 2. This utility model is equipped with a return pipe, which allows the remaining liquid in the spray pipe to flow back to the liquid tank when spraying stops, avoiding waste. Similarly, two parallel return solenoid valves are provided to ensure that the inlet solenoid valve can respond promptly even at train speeds.
[0011] 3. This utility model has a simple structure and is easy to operate. It can be installed on existing swing arm equipment, making it convenient for the modification and replacement of existing equipment, and has strong practicality. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the spray pipe structure in this utility model;
[0014] Figure 3 yes Figure 2 Top view;
[0015] Figure 4 This is the left view of this utility model.
[0016] In the diagram: 1-Swing arm truss; 2-Spray pipe; 3-Nozzle; 5-Inlet solenoid valve; 6-Return solenoid valve; 7-Hollow hole; 8-Supply pipe; 9-Return pipe; 10-Pipe clamp. Detailed Implementation
[0017] The present invention will now be described in detail with reference to the accompanying drawings.
[0018] like Figure 1-4 As shown, a novel railway dust suppression spraying device includes a swing arm truss 1 and a photoelectric detection system. A spray pipe 2 is mounted on the swing arm truss 1 via a pipe clamp 10. The spray pipe 2 has multiple nozzles 3 and two liquid supply pipes 8 connected to it. These two supply pipes 8 are connected in parallel and then to a liquid tank via a flexible supply hose. Each supply pipe 8 is equipped with an inlet solenoid valve 5. The photoelectric detection system and the inlet solenoid valve 5 are connected to a controller. The controller is a programmable logic controller (PLC).
[0019] Two return pipes 9 are also connected to the spray pipe 2. The two return pipes 9 are connected in parallel and then connected to the medicine tank through the return hose. The return pipe 9 is equipped with a return solenoid valve 6; the return solenoid valve 6 is connected to the controller.
[0020] The supply pipe 8 and the return pipe 9 are respectively installed on both sides of the spray pipe 2.
[0021] Multiple perforated holes 7 are provided on the swing arm truss 1 to reduce the weight of the swing arm truss 1.
[0022] The existing swing-arm dust suppressant spraying device is equipped with a photoelectric detection system. The signal generated by the photoelectric detection system is input to the programmable controller, and the programmable controller controls the servo motor of the roller to work.
[0023] This invention also utilizes a programmable logic controller (PLC) to control the operation of the inlet solenoid valve 5 and the return solenoid valve 6 based on signals generated by the photoelectric detection system. When the photoelectric detection system detects that the coal train is between the coupling and derailment, it sends a signal to the PLC. The PLC then controls the inlet solenoid valve 5 to close and the return solenoid valve 6 to open, allowing the dust suppressant to flow into the liquid tank through the return pipe 9 for recycling, thus stopping the dust suppressant spraying between the coupling and derailment. When the photoelectric detection system detects that the car body is in the spraying position, it sends a signal to the PLC. The PLC then controls the inlet solenoid valve 5 to open and the return solenoid valve 6 to close, allowing the dust suppressant to enter the spray pipe 2 through the supply pipe 8, and the nozzle 3 sprays the dust suppressant onto the car body.
[0024] This invention operates in non-electrified areas with speeds of 10 km / h and below, enabling spraying and covering of the coal seam surface on coal transport vehicles while ensuring the safety and normal operation of locomotives and rolling stock.
Claims
1. A novel railway dust suppression spraying device, comprising a swing arm truss and a photoelectric detection system, wherein the swing arm truss is equipped with spray pipes, characterized in that: The spray pipe (2) is connected to two liquid supply pipes (8). The two liquid supply pipes (8) are connected in parallel and then connected to the liquid tank through a liquid supply hose. The liquid supply pipe (8) is equipped with an inlet solenoid valve (5). The photoelectric detection system and the inlet solenoid valve (5) are respectively connected to the controller.
2. The novel railway dust suppression spraying device according to claim 1, characterized in that: The spray pipe (2) is also connected to two return pipes (9). The two return pipes (9) are connected in parallel and then connected to the liquid tank through a return hose. The return pipe (9) is equipped with a return solenoid valve (6). The return solenoid valve (6) is connected to the controller.
3. A novel railway dust suppression spraying device according to claim 1 or 2, characterized in that: The liquid supply pipe (8) and the liquid return pipe (9) are respectively installed on both sides of the spray pipe (2).
4. A novel railway dust suppression spraying device according to claim 3, characterized in that: The swing arm truss (1) has multiple hollow holes (7).