CN217632548U - Spraying system behind caving coal hydraulic support - Google Patents
Spraying system behind caving coal hydraulic support Download PDFInfo
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- CN217632548U CN217632548U CN202221402866.1U CN202221402866U CN217632548U CN 217632548 U CN217632548 U CN 217632548U CN 202221402866 U CN202221402866 U CN 202221402866U CN 217632548 U CN217632548 U CN 217632548U
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Abstract
The utility model discloses a caving coal hydraulic support rear spray system, which comprises a water spray pipeline and a spray stopping agent pipeline, wherein the outlet of the water spray pipeline is connected with the A port of a double-control water spray valve, the P closed port of the double-control water spray valve is connected with a hydraulic support tail support system, the P open port is connected with a hydraulic support tail coal caving system, and the P port is connected with a first inlet of an alternating valve; and the outlet of the spraying inhibitor pipeline is connected with a second liquid inlet of the alternating valve, and the liquid outlet of the alternating valve is connected with a nozzle assembly at the tail part of the hydraulic support. The system can organically combine the rear spraying system and the inhibitor spraying system, so that the two systems can share the rear part of rubber pipes and pipelines, and materials and underground space are saved.
Description
Technical Field
The utility model belongs to caving coal sprays the equipment field, concretely relates to caving coal hydraulic support back spray system.
Background
When coal mining, the tail part of the top coal caving bracket is provided with a rear spraying system and a stopping agent spraying system. A large amount of coal dust and dust can be generated in the coal caving process, a spraying system behind a top coal caving support is mainly used for spraying water for dust reduction, and a medium in the system is generally clear water. The spraying system of the stopping agent at the tail part of the top coal caving bracket has the following functions: and coal ash on two sides of the chute behind the tail part of the support is sprayed and pulled to form an antioxidant protective film, so that the oxygen absorption capacity of coal is reduced, spontaneous combustion is prevented, and a medium in the system is a stopping agent.
Because the two systems have different media, the prior art adopts two completely separated hydraulic spraying systems in the use process, and the pipe valves in the two systems not only occupy a large amount of underground space, but also cause material waste. The back spraying system of the hydraulic support for caving the top coal, which can organically combine the back spraying system and the spray system of the stopping agent, is urgently needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model aims to provide a spraying system behind caving coal hydraulic support, this system can combine back spraying system and stopping agent spraying system, makes two sets of systems can share back part rubber tube, pipeline, has practiced thrift material and space in the pit.
In order to realize the purpose, the utility model discloses a technical scheme be:
a hydraulic support rear spray system for caving top coal comprises a water spray pipeline and a spray stopping agent pipeline, wherein an outlet of the water spray pipeline is connected with an A port of a double-control water spray valve, a P closed port of the double-control water spray valve is connected with a hydraulic support tail supporting system, a P opening is connected with a hydraulic support tail coal caving system, and a P port is connected with a first liquid inlet of an alternating valve; and the outlet of the spraying inhibitor pipeline is connected with a second liquid inlet of the alternating valve, and the liquid outlet of the alternating valve is connected with a nozzle assembly at the tail part of the hydraulic support.
Preferably, the water spraying pipeline comprises a first stop valve, a first filter and a first multi-way block which are sequentially connected to an A port of the double-control water spraying valve, and the multi-way block is further connected with a water supply pump and a water spraying system of the lower adjacent frame.
Preferably, the spraying inhibitor pipeline comprises a second stop valve, a second filter and a second multi-way block, the second stop valve, the second filter and the second multi-way block are sequentially connected to a second liquid inlet of the alternating valve, and the second multi-way block is further connected with an inhibitor pump and a lower adjacent frame spraying inhibitor system.
Preferably, the first stop valve and the second stop valve are self-locking spherical stop valves.
Preferably, the nozzle assembly comprises a plurality of nozzles.
The utility model discloses the beneficial effect who has does:
1. the utility model discloses combine water injection system and stopping agent spraying system organically, nozzle part and partial rubber tube, pipeline after can sharing have practiced thrift material and space.
2. The alternating valve is arranged between the pipelines of the two systems, so that the main body parts of the water spraying system and the stopping agent spraying system can be isolated, the two systems share one set of nozzle assembly, resources are saved, the functions of respectively spraying water or stopping agent are realized, the two systems are prevented from being simultaneously opened, and waste is reduced.
Drawings
Fig. 1 is a system structure diagram of the present invention.
Detailed Description
As shown in figure 1, the utility model provides a put hydraulic support back spray system of top coal, including water spray pipeline and spraying retardant pipeline. The outlet of the water spraying pipeline is connected with the A port of the double-control water spraying valve 2. Specifically, the water spray line includes a first shut-off valve 13, a first filter 12, and a first manifold block 14. The water supply pump 11 is connected with a liquid inlet of the first multi-way block 14 through a pipeline, a large water outlet of the first multi-way block 14 is connected with a water spraying system of a lower adjacent frame, and a small water outlet is connected with an A port of the double-control water spraying valve through the first filter 12 and the first stop valve 13 in sequence. Wherein, the first stop valve 13 is a self-locking spherical stop valve.
The P closed port of the double-control water spraying valve 2 is connected with a hydraulic support tail supporting system, the P open port is connected with a hydraulic support tail coal discharging system, and the P open port is connected with a first liquid inlet of the alternating valve 3. The outlet of the spraying inhibitor pipeline is connected with the second liquid inlet of the alternate valve 3, and the liquid outlet of the alternate valve 3 is connected with the nozzle assembly 4. Specifically, the inhibitor injection line includes a second shut-off valve 24, a second filter 23, and a second manifold block 22. The stopping agent pump 21 is connected with a liquid inlet of the second multi-way block 22 through a pipeline, a large water outlet of the second multi-way block 22 is connected with a spraying stopping agent system of a lower adjacent frame, and a small water outlet is connected in a second liquid inlet of the alternating valve 3 through a second filter 23 and a second stop valve 24 in sequence.
Wherein, the second stop valve 24 adopts the spherical stop valve of auto-lock. The utility model discloses be linked together through the high-pressure rubber pipe between each subassembly, improve the stability that the medium was carried. The self-locking ball-type stop valve is a control element and is used for disconnecting the hydraulic system from the main pipeline, so that the maintenance is convenient. The filter is an auxiliary element and filters impurities in the medium, so that the impurities are prevented from entering the execution element operation system. The alternation valve 3 is used to control the medium to perform the function of alternating operation. The double-control water spraying valve 2 is used as a main control element for controlling the linkage work of the execution elements. In addition, the nozzle assembly 4 mounted at the rear of the hydraulic mount includes a plurality of nozzles.
The utility model discloses combine sprinkler system and stopping agent water spraying system, nozzle part and partial rubber tube, pipeline after can sharing have practiced thrift material and space. Meanwhile, the alternating valve 3 is arranged between the pipelines of the two systems, so that the main body parts of the water spraying system and the stopping agent spraying system can be isolated, the two systems share one set of nozzle assembly 4, resources are saved, the functions of respectively spraying water or stopping agent are realized, the two systems are prevented from being simultaneously opened, and waste is reduced.
When the coal is discharged from the tail of the hydraulic support, the coal discharging system at the tail of the hydraulic support acts, and the P opening of the double-control water injection valve 2 feeds liquid to open the P opening; meanwhile, the alternating valve 3 acts, the first liquid inlet of the alternating valve feeds liquid, and spray water from the water supply pump 11 sequentially passes through the first multi-way block 14, the first filter 12, the first stop valve 13, the first double-control water spray valve 2 and the alternating valve 3 to reach the nozzle assembly 4, so that the spraying and dust-settling functions are realized.
Under the condition that the tail part of the hydraulic support realizes the support function and coal is not discharged, the tail part support system of the hydraulic support acts, the P closed port of the double-control water injection valve 2 feeds liquid, the double-control water injection valve 2 is disconnected, the water injection system is closed, the alternating valve 3 acts, and the second liquid inlet of the alternating valve feeds liquid; the inhibitor liquid from the inhibitor pump 21 passes through the second multi-way block 22, the second filter 23, the second stop valve 24 and the alternate valve 3 in sequence to reach the nozzle assembly 4, and the function of spraying the inhibitor is realized.
Claims (5)
1. The utility model provides a put down top coal hydraulic support back spray system, includes water spray pipeline and spouts stopping agent pipeline, its characterized in that: the outlet of the water spraying pipeline is connected with the port A of the double-control water spraying valve, the P closed port of the double-control water spraying valve is connected with the tail supporting system of the hydraulic support, the P opening is connected with the tail coal discharging system of the hydraulic support, and the P port is connected with the first liquid inlet of the alternating valve; and the outlet of the spraying inhibitor pipeline is connected with a second liquid inlet of the alternating valve, and the liquid outlet of the alternating valve is connected with a nozzle assembly at the tail part of the hydraulic support.
2. The caving coal hydraulic support post-spray system of claim 1, wherein: the water spraying pipeline comprises a first stop valve, a first filter and a first multi-way block which are sequentially connected to an A port of the double-control water spraying valve, and a water supply pump and a water spraying system of a lower adjacent frame are further connected to the multi-way block.
3. The caving coal hydraulic support post-spray system of claim 2, wherein: the spraying inhibitor pipeline comprises a second stop valve, a second filter and a second multi-way block, the second stop valve, the second filter and the second multi-way block are sequentially connected to a second liquid inlet of the alternating valve, and a inhibitor pump and a lower adjacent frame spraying inhibitor system are further connected to the second multi-way block.
4. The caving coal hydraulic support post-spray system of claim 3, wherein: and the first stop valve and the second stop valve are self-locking spherical stop valves.
5. The caving coal hydraulic support post-spray system of claim 1, which is characterized in that: the nozzle assembly includes a plurality of nozzles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221402866.1U CN217632548U (en) | 2022-06-07 | 2022-06-07 | Spraying system behind caving coal hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221402866.1U CN217632548U (en) | 2022-06-07 | 2022-06-07 | Spraying system behind caving coal hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217632548U true CN217632548U (en) | 2022-10-21 |
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ID=83622311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221402866.1U Active CN217632548U (en) | 2022-06-07 | 2022-06-07 | Spraying system behind caving coal hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217632548U (en) |
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2022
- 2022-06-07 CN CN202221402866.1U patent/CN217632548U/en active Active
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