Novel anti-clogging flushing device

By designing an anti-clogging flushing device, the pump pit and conveying pump are flushed from multiple angles using underground pressurized water pipelines, which solves the problem of pump pit clogging in coal mining and improves conveying efficiency and safety.

CN223775520UActive Publication Date: 2026-01-09HENAN LONGYU ENERGY
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Patent Information

Application Number
CN202520089287.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2026-01-09
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

During coal mining, the pump pits and conveying pumps for coal slurry are prone to blockage due to coal slurry deposition, causing the conveying pumps to malfunction, affecting production and posing safety hazards.

Method used

A clogging prevention flushing device was designed, which uses pressurized water from the underground roadway pressurized water pipeline to flush the pump pit and the delivery pump through the annular pipe and water nozzle. Combined with the rotation of the impeller and eccentric wheel, the device drives the cyclical movement of the arc-shaped inner slide plate and the outer connecting arc plate to achieve multi-angle flushing.

Benefits of technology

It effectively prevents pump pit blockage, improves the smoothness and conveying capacity of the conveying pump, reduces the concentration of coal slurry water, reduces manual intervention, and lowers safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel anti-clogging flushing device which comprises a quick connector, an annular pipe is fixedly connected to the bottom end of the quick connector, a sealing plate is fixedly installed at one end of the annular pipe, a plurality of water spraying openings are formed in the pipe wall of an inner ring of the annular pipe in the axis direction, the water spraying openings are divided into an inclined upward type and an inclined downward type, and the water spraying openings are communicated with the annular pipe. The quick connector is connected with an underground roadway pressure water pipeline, the annular pipe is placed in a coal water storage tank pump pit, and a conveying pump base is placed on an inner ring of the flushing device. According to the novel anti-clogging flushing device, the pump pit and the water suction opening of the conveying pump are flushed through conveying of the annular pipe and under the action of the water spraying opening by means of pressure water of the underground roadway pressure water pipeline, so that slime water in the pump pit is continuously turned over, slime water deposition is effectively avoided, and thus clogging of the pump pit is prevented.
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Description

Technical Field

[0001] This utility model belongs to the field of engineering construction technology, specifically relating to a novel anti-clogging flushing device. Background Technology

[0002] During coal mining, it is usually necessary to discharge coal slag and slag. Typically, a gas drainage drilling site is set up in the drainage roadway at the bottom of the coal seam underground. This drilling site is equipped with a drilling rig and a coal slag and slag storage tank for conveying the slag from the drainage borehole. The tank contains a pump pit and a coal slag and slag conveying pump located within the pump pit. The normal operation of the coal slag and slag conveying pump is crucial for ensuring the smooth delivery of the drilled coal slag and slag. During drilling and coal slag and slag delivery, the problem of clogging the pump pit and conveying pump is particularly prominent. During the drilling phase, a large amount of coal slag and slag is collected in the coal slag and slag storage tank pump pit and then conveyed outwards by the conveying pump. During this conveying process, the continuous deposition of coal slurry or the entry of large particles into the pump pit causes clogging of the pump pit and pump, preventing them from functioning properly. Prolonged clogging of the conveying pump and its inability to deliver slag are common occurrences. This necessitates manual intervention by connecting water pipes to the underground roadway's pressurized water pipeline to treat the clogging of the pump pit, which consumes a significant amount of time and labor, impacting production and creating safety hazards on-site. Therefore, we have proposed a new type of anti-clogging flushing device. Summary of the Invention

[0003] This invention provides a novel anti-clogging flushing device that solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a novel anti-clogging flushing device, comprising a quick connector, an annular pipe fixedly connected to the bottom end of the quick connector, a sealing plate fixedly installed at one end of the annular pipe, and multiple water spray nozzles provided on the pipe wall along the axial direction inside the annular pipe, the water spray nozzles being divided into two types: upward obliquely and downward obliquely, the quick connector being connected to the underground roadway pressure water pipeline, the annular pipe being placed in the coal water storage tank pump pit, and the base of the conveying pump being placed in the inner ring of the flushing device.

[0005] Furthermore, an arc-shaped inner sliding plate is slidably connected to the inner side of the annular tube. The arc of the arc-shaped inner sliding plate is greater than 10 degrees. Two outer connecting arc plates, which are longer than the arc-shaped inner sliding plate, are fixedly connected to the inner side of the arc-shaped inner sliding plate. The outer connecting arc plates are movably connected to the annular tube and keep the annular tube closed at all times. The outer connecting arc plates can communicate with the outside world, and the outer surface of the outer connecting arc plates corresponds to the outer surface of the annular tube.

[0006] Furthermore, the water nozzles are located on the inner arc-shaped sliding plate and the outer connecting arc plate, with the upper water nozzle opening at an angle of 45° upward and the lower water nozzle opening at an angle of 45° downward.

[0007] Furthermore, multiple springs are fixedly connected to both ends of the arc-shaped inner slide plate, one end of each spring is fixed to an annular tube, and an annular groove is formed in the middle of the arc-shaped inner slide plate.

[0008] Furthermore, an impeller is connected to the inside of the annular tube near the quick connector via a rotating shaft, and the rotating shaft on the impeller passes through the annular groove on the arc-shaped inner slide plate.

[0009] Furthermore, a push plate is fixedly connected to the side of the arc-shaped inner slide plate near the impeller, and an eccentric wheel is fixedly connected to the shaft on the impeller, and the eccentric wheel can abut against the push plate.

[0010] This utility model has the following beneficial effects:

[0011] 1. This new anti-clogging flushing device uses pressurized water from the underground roadway pressurized water pipeline to flush the pump pit and the suction port of the conveying pump through the conveying of the ring pipe and the action of the spray nozzle. This causes the coal slurry water in the pump pit to churn continuously, effectively preventing the coal slurry water from settling and thus preventing the pump pit from clogging.

[0012] 2. This new anti-clogging flushing device uses the impact of pressurized water to make the impeller rotate, which in turn drives the eccentric wheel to rotate. With the help of the spring, the push plate can drive the inner arc-shaped sliding plate and the outer connecting arc plate to move back and forth in a cycle, so that the water nozzle can be in different positions for flushing, thus making the flushing more thorough. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top sectional view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the arc-shaped inner sliding plate connection of this utility model;

[0017] Figure 5 This utility model Figure 2 Schematic diagram of the structure at point A;

[0018] Figure 6 This utility model Figure 3 A schematic diagram of the structure at point B.

[0019] In the diagram: 1. Quick connector; 2. Ring pipe; 3. Spray nozzle; 4. Arc-shaped inner slide plate; 5. Spring; 6. Outer connecting arc plate; 7. Impeller; 8. Push plate; 9. Eccentric wheel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 3 A novel anti-clogging flushing device includes a quick connector 1, which is a DN25 type quick connector. An annular pipe 2 is fixedly connected to the bottom end of the quick connector 1. A sealing plate is fixedly installed at one end of the annular pipe 2. Pressurized water can be delivered into the annular pipe 2 through the quick connector 1. Multiple water spray nozzles 3 are provided on the inner wall of the annular pipe 2 along the axial direction. The water spray nozzles 3 are divided into two types: upward and downward. Pressurized water can be sprayed out from the water spray nozzles 3 through the annular pipe 2, so that the upper water spray nozzles 3 flush the pump's suction port, and the lower... The water spray nozzle 3 flushes the pump pit, causing the coal slurry water inside to churn continuously, effectively preventing coal slurry water from settling and thus preventing pump pit blockage. At the same time, the flushing with pressurized water also reduces the concentration of coal slurry water, improving the conveying capacity and smoothness of the conveying pump. The quick connector 1 is connected to the underground roadway pressurized water pipeline, which is existing technology and will not be described in detail here. The ring pipe 2 is placed inside the coal water storage tank pump pit, and the conveying pump base is placed in the inner ring of the flushing device, thereby enabling the water spray nozzle 3 to flush the pump pit and the conveying pump inlet.

[0022] Please see Figures 1 to 6 An arc-shaped inner slide plate 4 is slidably connected to the inner side of the annular pipe 2. The arc-shaped inner slide plate 4 can slide along a fixed trajectory within the annular pipe 2. The arc of the arc-shaped inner slide plate 4 is greater than 180 degrees, ensuring smooth sliding of the arc-shaped inner slide plate 4. Furthermore, two outer connecting arc plates 6, which are longer than the arc-shaped inner slide plate 4, are fixedly connected to the inner side of the arc-shaped inner slide plate 4. The outer connecting arc plates 6 are movably connected to the annular pipe 2, so that the outer connecting arc plates 6 can always close the annular pipe 2 when moving, so that pressurized water can only be sprayed out through the spray nozzle 3. At the same time, the annular pipe 2 is always closed. The outer connecting arc plates 6 can be connected to the outside world, and the outer surface of the outer connecting arc plates 6 corresponds to the outer surface of the annular pipe 2.

[0023] Please see Figures 1 to 6The water nozzle 3 is located on the inner arc-shaped sliding plate 4 and the outer connecting arc plate 6. The upper water nozzle 3 opens at an angle of 45° upwards, and the lower water nozzle 3 opens at an angle of 45° downwards. By moving the inner arc-shaped sliding plate 4 and the outer connecting arc plate 6, the water nozzle 3 can change its position to spray water, thereby enabling it to rinse different areas and make the rinsing more thorough.

[0024] Please see Figures 1 to 5 Multiple springs 5 ​​are fixedly connected to both ends of the arc-shaped inner slide plate 4. One end of the spring 5 is fixed to the annular tube 2, and an annular groove is opened in the middle of the arc-shaped inner slide plate 4. Under the action of the spring 5, the arc-shaped inner slide plate 4 and the outer connecting arc plate 6 can return to their original positions smoothly, thereby forming a cyclic reciprocating movement effect.

[0025] Please see Figures 1 to 5 An impeller 7 is connected to the inside of the annular pipe 2 near the quick connector 1 via a rotating shaft. The rotating shaft on the impeller 7 passes through the annular groove on the arc-shaped inner slide plate 4, so that the movement of the arc-shaped inner slide plate 4 does not affect the rotation of the impeller 7. When the pressurized water passes through the impeller 7, it can drive the impeller 7 to rotate.

[0026] Please see Figures 1 to 5 A push plate 8 is fixedly connected to the side of the arc-shaped inner slide plate 4 near the impeller 7. An eccentric wheel 9 is fixedly connected to the shaft on the impeller 7, and the eccentric wheel 9 can abut against the push plate 8. Driven by the shaft of the impeller 7, the eccentric wheel 9 can rotate. Driven by the rotation of the eccentric wheel 9, the push plate 8 can be moved, which in turn drives the arc-shaped inner slide plate 4 and the outer connecting arc plate 6 to move.

[0027] In summary, this novel anti-clogging flushing device, when in use, the quick connector 1 delivers pressurized water into the annular pipe 2. Driven by the pressurized water, the impeller 7 rotates, and through the shaft of the impeller 7, the eccentric wheel 9 rotates. Under the action of the spring 5, the arc-shaped inner slide plate 4 drives the push plate 8 to always abut against the eccentric wheel 9. Then, driven by the rotation of the eccentric wheel 9, the push plate 8 drives the arc-shaped inner slide plate 4 and the outer connecting arc plate 6 to move, allowing the spray nozzle 3 to move back and forth. This allows pressurized water to flush different locations through the spray nozzle 3. Under the action of the spray nozzle 3, the upper spray nozzle 3 flushes the pump's suction port, and the lower spray nozzle 3 flushes the pump pit.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel anti-clogging flushing device, comprising a quick connector (1), characterized in that: The bottom end of the quick connector (1) is fixedly connected to an annular pipe (2). One end of the annular pipe (2) is fixedly installed with a sealing plate. Multiple water spray nozzles (3) are provided on the pipe wall along the axial direction inside the annular pipe (2). The water spray nozzles (3) are divided into two types: upward and downward. The quick connector (1) is connected to the underground roadway pressure water pipeline. The annular pipe (2) is placed in the coal water storage tank pump pit, and the inner ring of the flushing device is placed with the base of the conveying pump.

2. The novel anti-clogging flushing device according to claim 1, characterized in that: The inner side of the annular tube (2) is slidably connected to an arc-shaped inner slide plate (4). The arc of the arc-shaped inner slide plate (4) is greater than 180 degrees. Two outer connecting arc plates (6) longer than the arc-shaped inner slide plate (4) are fixedly connected to the inner side of the arc-shaped inner slide plate (4). The outer connecting arc plates (6) are movably connected to the annular tube (2) and always close the annular tube (2). The outer connecting arc plates (6) can communicate with the outside world, and the outer surface of the outer connecting arc plates (6) corresponds to the outer surface of the annular tube (2).

3. The novel anti-clogging flushing device according to claim 2, characterized in that: The water nozzle (3) is located on the inner arc-shaped sliding plate (4) and the outer connecting arc plate (6). The upper water nozzle (3) is angled upward at 45°, and the lower water nozzle (3) is angled downward at 45°.

4. The novel anti-clogging flushing device according to claim 3, characterized in that: Multiple springs (5) are fixedly connected to both ends of the arc-shaped inner slide plate (4). One end of the spring (5) is fixed to the annular tube (2), and an annular groove is provided in the middle of the arc-shaped inner slide plate (4).

5. The novel anti-clogging flushing device according to claim 4, characterized in that: The impeller (7) is connected to the inside of the annular tube (2) near the quick connector (1) by a rotating shaft, and the rotating shaft on the impeller (7) passes through the annular groove on the arc-shaped inner slide plate (4).

6. The novel anti-clogging flushing device according to claim 5, characterized in that: The inner arc-shaped slide plate (4) is fixedly connected to a push plate (8) on the side near the impeller (7). An eccentric wheel (9) is fixedly connected to the shaft on the impeller (7), and the eccentric wheel (9) can abut against the push plate (8).