Intelligent full-automatic flushing device for coal conveying trestle

Abstract

The utility model belongs to the field of coal handling trestles, and particularly relates to an intelligent full-automatic flushing device for a coal handling trestle, which comprises a main pipe, and one end of the main pipe is connected with an external water source; the branch pipes are installed on the side edge of the main pipe at intervals, each branch pipe is formed by splicing a plurality of branch pipes, each branch pipe is correspondingly provided with a spray head, and every two adjacent branch pipes are connected through a connecting assembly; the electromagnetic valve is mounted on the branch pipe and is connected with the main pipe, and water flow on and off of the branch pipe are controlled through the electromagnetic valve; the intelligent control device comprises a PLC control main station and a PLC control substation, the PLC control main station is in communication connection with the PLC control substation, the PLC control substation is in communication connection with the electromagnetic valve, and the electromagnetic valve is controlled to be started and stopped through the PLC control substation; according to the utility model, automatic flushing and timing flushing are realized, so that the device is more intelligent, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of coal conveying trestle bridges, in particular to an intelligent full-automatic flushing device for coal conveying trestle bridges. Background Art

[0002] In recent years, similar accidents have occurred frequently in the coal handling areas of power plants. Causes include coal conveyor belt fires, coal dust explosions, improper operation, and equipment failures. As a critical component of power plant production and operations, the safe and efficient operation of the coal handling system is crucial. Transporting coal within the power plant via belt conveyors within the coal handling trestle is a crucial component of power plant operations. However, this method of coal handling is characterized by confined space, high altitude, concentrated equipment, complex environments, difficulty in troubleshooting, and rapid propagation of faults. Failure to conduct timely inspections and troubleshooting can easily lead to safety hazards, resulting in accidents and immeasurable losses during long-term operation.

[0003] During conveyor belt operation, coal dust accumulates on the underside of the conveyor belts and pedestrian walkways due to falling dust or spilled belts. This not only affects access but also poses a safety hazard to equipment operation and site safety. Therefore, regular flushing is necessary. Currently, most power plants use manual flushing with a rubber hose. This method is labor-intensive and requires uncontrolled water consumption. Furthermore, it is affected by site and personnel conditions, making it difficult to guarantee flushing quality.

[0004] Therefore, in order to solve the above problems, an intelligent fully automatic flushing device for coal conveying trestle is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the background technology, the utility model proposes an intelligent fully automatic flushing device for a coal conveying trestle.

[0006] The technical solution adopted by the utility model to solve the technical problem is: the intelligent full-automatic flushing device for the coal conveying trestle described in the utility model comprises:

[0007] A main pipe, one end of which is connected to an external water source;

[0008] Branch pipes are provided in multiple groups and are installed at intervals on the side of the main pipe. Each group of branch pipes is composed of multiple branch pipes. Each branch pipe is correspondingly installed with a nozzle. Two adjacent branch pipes are connected by a connecting assembly.

[0009] A solenoid valve is installed on the branch pipe and connected to the main pipe, and the solenoid valve is used to control the water flow of the branch pipe;

[0010] An intelligent control device includes a PLC control main station and a PLC control substation, the PLC control main station and the PLC control substation are communicatively connected, the PLC control substation is communicatively connected to the solenoid valve, and the solenoid valve is started and stopped by the PLC control substation.

[0011] Preferably, the connecting assembly includes a connecting sleeve and a connecting pipe, the connecting sleeve is installed at one end of the branch pipe, and the connecting pipe is installed at the other end of the branch pipe, the connecting pipe can be threadedly connected to the outside of the end of the connecting sleeve, the end of the connecting sleeve is closed, and a sliding hole is opened in the middle of the end, a movable pipe is sealed and slidably installed in the middle of the sliding hole, a water inlet hole is opened on the side wall of the movable pipe, the movable pipe is located inside the connecting sleeve and is fixedly connected to a baffle at one end, a fixed plate is fixedly connected in the middle of the connecting pipe, a through hole is opened in the middle of the fixed plate, and the size of the through hole is adapted to the movable pipe.

[0012] Preferably, a water meter is installed at the water inlet end of the main pipe.

[0013] Preferably, both ends of the solenoid valve are threadedly connected to the main pipe and the branch pipe through threaded structures.

[0014] Preferably, the connecting sleeve and the connecting pipe are respectively threadedly connected to the branch pipe through a threaded structure.

[0015] Preferably, the distance between the water inlet hole and the baffle is greater than the wall thickness of the end portion of the connecting sleeve.

[0016] Preferably, the solenoid valve is a manual and electric dual-purpose switch valve.

[0017] The utility model is beneficial in that:

[0018] 1. This utility model is equipped with a main pipe, branch pipes, solenoid valves, intelligent control devices, and nozzles. Through data communication between a PLC-controlled master station and a PLC-controlled substation, different spray cleaning tasks can be set according to different needs. When the scheduled task arrives, the PLC-controlled substation activates the solenoid valve, causing water in the main pipe to flow into the branch pipe and be sprayed out of the nozzle to achieve the spraying operation. The PLC-controlled master station and PLC-controlled substation work in coordination to achieve automatic and timed flushing, making the device more intelligent and improving work efficiency.

[0019] 2. The utility model assembles and splices multiple branch pipes as needed by setting a connecting component, and then can set the length of the branch pipes so that the water mist sprayed by the nozzle can cover a sufficiently large area to ensure the dust reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 Schematic diagram of the three-dimensional structure of embodiment 1;

[0022] Figure 2 It is a partial structural cross-sectional view of embodiment 1;

[0023] Figure 3 For Example 1 Figure 2 A schematic diagram of the structure at center A;

[0024] Figure 4 For Example 1 Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0025] Figure 5 This is a flow chart of the intelligent control system of Example 1.

[0026] In the figure: 1. Main pipe; 2. Water meter; 3. Solenoid valve; 4. Branch pipe; 5. Nozzle; 6. Connecting assembly; 7. Connecting sleeve; 8. Sliding hole; 9. Movable pipe; 10. Baffle; 11. Water inlet hole; 12. Connecting pipe; 13. Fixed plate; 14. Through hole; 15. PLC control main station; 16. PLC control substation. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figure 1-5 As shown, the intelligent fully automatic flushing device for the coal conveyor trestle includes:

[0030] Main pipe 1, one end of which is connected to an external water source;

[0031] Branch pipes are provided in multiple groups and are installed at intervals on the side of the main pipe 1. Each group of branch pipes is composed of multiple branch pipes 4. A nozzle 5 is installed on each branch pipe 4. Two adjacent branch pipes 4 are connected by a connecting component 6.

[0032] Solenoid valve 3, which is installed on the branch pipe 4 and connected to the main pipe 1, and controls the water flow of the branch pipe 4;

[0033] An intelligent control device, comprising a PLC control main station 15 and a PLC control substation 16, wherein the PLC control main station 15 and the PLC control substation 16 are communicatively connected, and the PLC control substation 16 is communicatively connected to the solenoid valve 3, and the solenoid valve 3 is controlled to start and stop via the PLC control substation 16;

[0034] During operation, the power plant coal conveying trestle is set on both sides of the aisle, the main pipe 1 is set on the side of the power plant coal conveying trestle on both sides, and multiple groups of branch pipes are extended to the bottom of the belt according to predetermined intervals. Multiple branch pipes 4 are assembled and spliced ​​as needed, and the length of the branch pipe can be set so that the water mist sprayed by the nozzle 5 can cover a large enough area to ensure the dust reduction effect; in addition, the PLC control main station 15 is composed of a PLC programming control box, an industrial computer and a host computer system software, and the PLC control substation 16 is composed of a set of PLC programmable control boxes and downstream detection modules and actuators. Through data communication between the PLC control main station 15 and the PLC control substation 16, spray cleaning tasks of different cycles are set according to different needs. When the scheduled task arrives, the PLC control substation 16 controls the solenoid valve 3 to operate, so that the water in the main pipe 1 flows into the branch pipe 4 and is sprayed out from the nozzle 5 to realize the spraying operation. The PLC control main station 15 and the PLC control substation 16 cooperate to realize automatic flushing and timed flushing, making the device more intelligent and improving work efficiency.

[0035] The connecting assembly 6 includes a connecting sleeve 7 and a connecting pipe 12. The connecting sleeve 7 is installed at one end of the branch pipe 4, and the connecting pipe 12 is installed at the other end of the branch pipe 4. The connecting pipe 12 can be threadedly connected to the outside of the end of the connecting sleeve 7. The end of the connecting sleeve 7 is closed, and a sliding hole 8 is opened in the middle of the end. A movable pipe 9 is sealed and slidably installed in the middle of the sliding hole 8. A water inlet hole 11 is opened on the side wall of the movable pipe 9. The movable pipe 9 is located inside the connecting sleeve 7 and is fixedly connected to a baffle 10 at one end. A fixing plate 13 is fixedly connected in the middle of the connecting pipe 12, and a through hole 14 is opened in the middle of the fixing plate 13. The size of the through hole 14 is adapted to the movable pipe 9. During operation, when assembling multiple branch pipes 4, the first branch pipe 4 is connected to the main pipe 1 through the solenoid valve 3, and then the connecting sleeve 7 is installed in the second branch pipe. The end of the pipe 4 is installed, and then the connecting pipe 12 is installed at the end of the third branch pipe 4, and the connecting pipe 12 is threadedly connected to the connecting sleeve 7. The fixed plate 13 on the inside of the connecting pipe 12 is in contact with the end of the movable pipe 9, pushing the movable pipe 9 along the sliding hole 8 toward the inside of the connecting sleeve 7, so that the water inlet on the movable pipe 9 completely enters the inside of the connecting sleeve 7. At this time, the second branch pipe 4 and the third branch pipe 4 are internally connected, and the water flow can be sprayed out through their respective nozzles 5; in addition, an additional connecting sleeve 7 is installed on the end of the branch pipe 4 away from the solenoid valve 3, and the water flow enters the connecting sleeve 7 from the inside, pushing the baffle 10 and the movable pipe 9 to move outward, so that the water inlet hole 11 on the movable pipe 9 moves to the outside of the connecting sleeve 7. At this time, the water flow in the connecting sleeve 7 will not leak, so as to achieve the blockage of the end of the branch pipe 4, avoid water leakage in the pipe, and cause waste of water resources.

[0036] A water meter 2 is installed at the water inlet end of the main pipe 1 to count the instantaneous and cumulative total water volume during operation.

[0037] The two ends of the solenoid valve 3 are respectively threadedly connected to the main pipe 1 and the branch pipe 4 through a threaded structure; during operation, the solenoid valve 3 can be quickly assembled and disassembled, and the solenoid valve 3 is convenient for replacement and maintenance.

[0038] The connecting sleeve 7 and the connecting pipe 12 are respectively threadedly connected to the branch pipe 4 through a threaded structure, so as to quickly assemble and disassemble the branch pipe 4 during operation.

[0039] The distance between the water inlet hole 11 and the baffle 10 is greater than the wall thickness of the end of the connecting sleeve 7; during operation, when water flows into the connecting sleeve 7 from the inside, pushing the baffle 10 and the movable tube 9 to move outward, and when the baffle 10 fits against the inner wall of the end of the connecting sleeve 7, the water inlet hole 11 on the movable tube 9 moves to the outside of the connecting sleeve 7. At this time, the water in the connecting sleeve 7 will not leak.

[0040] Example 2

[0041] See also Figure 3As shown in the figure, compared with Example 1, as another embodiment of the present invention, the solenoid valve 3 is a manual and electric dual-use switch valve; when in operation, in an emergency, the solenoid valve 3 can be switched to manual control locally to achieve automatic timed or manual cleaning of the coal conveyor trestle.

[0042] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. The intelligent fully automatic flushing device for the coal conveyor trestle is characterized by: include: A main pipe (1), one end of which is connected to an external water source; Branch pipes, the branch pipes are provided in multiple groups and are installed at intervals on the side of the main pipe (1), each group of the branch pipes is composed of a plurality of branch pipes (4) spliced ​​together, each branch pipe (4) is correspondingly installed with a nozzle (5), and two adjacent branch pipes (4) are connected by a connecting assembly (6); A solenoid valve (3), the solenoid valve (3) being installed on the branch pipe (4) and connected to the main pipe (1), and controlling the water flow of the branch pipe (4) by the solenoid valve (3); An intelligent control device comprises a PLC control main station (15) and a PLC control substation (16), wherein the PLC control main station (15) and the PLC control substation (16) are communicatively connected, and the PLC control substation (16) is communicatively connected to a solenoid valve (3), and the start and stop of the solenoid valve (3) is controlled by the PLC control substation (16).

2. The intelligent fully automatic flushing device for the coal conveyor trestle according to claim 1 is characterized in that: The connecting assembly (6) comprises a connecting sleeve (7) and a connecting pipe (12). The connecting sleeve (7) is installed at one end of the branch pipe (4), and the connecting pipe (12) is installed at the other end of the branch pipe (4). The connecting pipe (12) can be threadedly connected to the outside of the end of the connecting sleeve (7). The end of the connecting sleeve (7) is closed, and a sliding hole (8) is provided in the middle of the end. A movable pipe (9) is sealed and slidably installed in the middle of the sliding hole (8). A water inlet hole (11) is provided on the side wall of the movable pipe (9). The movable pipe (9) is located inside the connecting sleeve (7) and is fixedly connected to a baffle (10). A fixed plate (13) is fixedly connected to the middle of the connecting pipe (12). A through hole (14) is provided in the middle of the fixed plate (13). The size of the through hole (14) is adapted to that of the movable pipe (9).

3. The intelligent fully automatic flushing device for the coal conveyor trestle according to claim 2 is characterized in that: A water meter (2) is installed at the water inlet end of the main pipe (1).

4. The intelligent fully automatic flushing device for the coal conveyor trestle according to claim 3 is characterized by: Both ends of the solenoid valve (3) are threadedly connected to the main pipe (1) and the branch pipe (4) through threaded structures.

5. The intelligent fully automatic flushing device for the coal conveyor trestle according to claim 4 is characterized in that: The connecting sleeve (7) and the connecting pipe (12) are respectively threadedly connected to the branch pipe (4) via threaded structures.

6. The intelligent fully automatic flushing device for the coal conveyor trestle according to claim 5 is characterized in that: The distance between the water inlet hole (11) and the baffle (10) is greater than the wall thickness of the end portion of the connecting sleeve (7).

7. The intelligent fully automatic flushing device for the coal conveyor trestle according to claim 6 is characterized by: The solenoid valve (3) is a manual and electric dual-purpose switch valve.

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