Anti-blocking dredging mechanism for ash removal pipeline of power plant

Abstract

The invention discloses a power plant ash removal pipeline anti-blocking dredging mechanism which comprises a base, a driving mechanism and a dredging mechanism, a first mounting box is arranged above the base, a first lead screw is rotationally arranged in the first mounting box, a first moving block is connected to the first lead screw in a sleeving mode, a second mounting box is welded to the front side of the first moving block, and a second lead screw is rotationally arranged in the second mounting box; one end and the middle of the second lead screw are sleeved with second moving blocks, knocking rods are welded to the front sides of the two second moving blocks, the driving mechanism is used for driving the first lead screw and the second lead screw to rotate forwards and reversely in a reciprocating mode and driving the second mounting box to move left and right in a reciprocating mode, and the dredging mechanism is used for dredging the dust removal pipeline. Pneumatic dredging and hydraulic dredging are combined together, the anti-blocking dredging effect is better, and dredging can be completed without being affected by the shape and length of a pipeline; and in the dredging process, the knocking rod is used for continuously knocking the pipeline to generate vibration, so that the efficiency of pneumatic dredging and hydraulic dredging is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline dredging, and in particular to an anti-blocking and dredging mechanism for ash removal pipelines in power plants. Background Art

[0002] The power plant ash removal pipeline is a pipeline system used to transport and discharge ash and dust generated by coal-fired power plants during the power generation process. These pipelines are usually connected to the boiler, ash storage and ash handling equipment to ensure that the ash can be effectively removed from the boiler and safely handled. The power plant ash removal pipeline is usually made of wear-resistant and corrosion-resistant materials, such as steel pipes or plastic pipes, to adapt to high temperature and high wear working environments. The ash removal pipeline of the power plant is easily retained in the pipeline due to reasons such as large or irregular ash particles and high humidity, which leads to blockage. The power plant ash removal pipeline needs to be regularly cleared and unblocked.

[0003] However, the existing anti-blocking and dredging mechanisms for ash removal pipelines in power plants mostly use mechanical dredging, such as brushes and dredgers to clean the accumulated ash in the pipelines. This method is greatly affected by the shape and length of the pipeline. Once the pipeline has many bends or is long, it cannot be completely dredged. Therefore, a new anti-blocking and dredging mechanism is needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a mechanism for preventing and clearing dust removal pipelines in power plants.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A ash removal pipeline anti-blocking and dredging mechanism for a power plant comprises: a base, a first installation box is horizontally arranged above the base, a first screw rod is horizontally rotatably connected inside the first installation box, a first moving block is sleeved on the first screw rod, a second installation box is vertically welded to the front side of the first moving block, a second screw rod is vertically rotatably connected inside the second installation box, a second moving block is sleeved at one end and the middle of the second screw rod, and a knocking rod is horizontally welded to the front sides of the two second moving blocks;

[0007] A driving mechanism, the driving mechanism is used to drive the first screw rod and the second screw rod to rotate back and forth in both directions, and drive the second installation box to move back and forth left and right;

[0008] A dredging mechanism is used to dredge the dust removal pipeline, and the dredging mechanism includes a fan and a liquid suction pump.

[0009] As a further technical solution of the present invention, support legs are vertically welded to the four corners of the bottom of the base, a vertical rod is vertically welded to the top of the base, and the first installation box is welded to the top of the vertical rod.

[0010] As a further technical solution of the present invention, the front sides of the first installation box and the second installation box are both open structures, the first moving block is connected to the first screw rod through a thread, and the second moving block is connected to the second screw rod through a thread, and the first moving block and the second moving block are respectively slidably connected in the first installation box and the second installation box.

[0011] As a further technical solution of the present invention, the liquid suction pump is installed on one side of the top of the base, a second mounting seat is welded to one side of the top of the base, the fan is fixedly installed on the top of the second mounting seat, the air inlet of the fan is connected to an air suction pipe, the air outlet of the fan is connected to an air outlet pipe, the liquid inlet of the liquid suction pump is connected to the liquid suction pipe, the liquid outlet of the liquid suction pump is connected to the liquid outlet pipe, valves are installed on the air outlet pipe and the liquid outlet pipe, the other end of the liquid outlet pipe is connected to the air outlet pipe, and the other end of the air outlet pipe is connected to a hose.

[0012] When it is necessary to dredge the ash removal pipeline, connect the hose and the ash removal pipeline, first open the valve on the air outlet pipe, start the fan, use the exhaust pipe to draw high-pressure gas, and pass it into the ash removal pipeline through the air outlet pipe and the hose. The high-pressure gas pushes the ash, breaks the blockage, and restores the pipeline to smooth flow; then open the valve on the liquid outlet pipe, start the liquid suction pump, and use the liquid suction pipe to draw cleaning liquid through the liquid outlet pipe, the air outlet pipe and the hose. The cleaning liquid dissolves or loosens the remaining ash and flushes the pipeline to clear the blockage. Combining pneumatic dredging and hydraulic dredging together has better anti-blockage and dredging effects, and is not affected by the shape and length of the pipeline. Regardless of the shape of the pipeline, it can be completely dredged.

[0013] As a further technical solution of the present invention, the driving mechanism includes a rotating motor, a first mounting seat is welded on one side of the top of the base, the rotating motor is horizontally fixedly installed on the top of the first mounting seat, a first large disk is fixedly installed on the output end of the rotating motor, a first circular groove is opened on one side of the first large disk, a first small disk is welded at the center of the first circular groove, a plurality of first inner convex teeth are welded on part of the inner wall of the first circular groove, a plurality of first outer convex teeth are welded on part of the outer circumference of the first small disk, a first small gear is arranged in the first circular groove, the first small gear is meshed with the plurality of first inner convex teeth and the plurality of first outer convex teeth in sequence, one end of the first screw rod passes through one side of the first mounting box and is welded to the center of the first small gear, and a first small gear is welded on the top of the first mounting box. An L-shaped plate, a rack is horizontally welded on the front side of the L-shaped plate, a gear is meshed on the side of the rack, a connecting shaft is vertically welded at the center of the gear, a skateboard is horizontally slidably connected to the inner side of the L-shaped plate, the connecting shaft passes through the skateboard and is rotatably connected to the skateboard, a second large disk is welded on the bottom end of the connecting shaft, a second circular groove is provided at the bottom of the second large disk, a second small disk is welded at the center of the second circular groove, a plurality of second inner convex teeth are welded on part of the inner wall of the second circular groove, a plurality of second outer convex teeth are welded on part of the outer circumference of the second small disk, a second pinion is provided in the second circular groove, the second pinion is meshed with the plurality of second inner convex teeth and the plurality of second outer convex teeth in sequence, and the top end of the second screw rod passes through the top of the second mounting box and is welded at the center of the second pinion.

[0014] At the same time, the rotating motor is started to drive the first large disk to rotate, and the first large disk drives the first small disk to rotate together, and the multiple first inner convex teeth on the inner wall of the first circular groove first mesh with the first small gear, driving the first small gear to rotate forwardly. When the multiple first inner convex teeth are engaged, the multiple first outer convex teeth on the outer circumference of the first small disk mesh with the first small gear again, driving the first small gear to rotate reversely. The first large disk and the first small disk rotate continuously, which drives the first small gear to rotate back and forth in the forward and reverse directions. The first small gear drives the first screw rod to rotate back and forth in the forward and reverse directions, which drives the first moving block to move back and forth left and right on the first screw rod, and the first moving block drives the first small gear to rotate back and forth in the forward and reverse directions. The second installation box moves back and forth left and right, and the second installation box drives the gear above it to move back and forth left and right. Because the gear and the rack are meshing, the gear moves and rotates at the same time. The gear drives the second large disk to rotate through the connecting shaft, and the second large disk drives the second small disk to rotate. Similarly, it drives the second small gear to rotate back and forth in both directions. The second small gear drives the second screw rod to rotate back and forth in both directions, which drives the two second moving blocks to move back and forth up and down on the second screw rod. The two second moving blocks drive the two knocking rods to move back and forth up and down. The two knocking rods continuously knock on the dust removal pipe to make it vibrate, thereby improving the efficiency of pneumatic dredging and hydraulic dredging.

[0015] The beneficial effects of the present invention are: pneumatic dredging and hydraulic dredging are combined together, the anti-blocking dredging effect is better, and it is not affected by the shape and length of the pipeline, and the pipeline can be completely dredged regardless of its shape; during the dredging process, two knocking rods are used to continuously knock the dust removal pipeline to make it vibrate, thereby improving the efficiency of pneumatic dredging and hydraulic dredging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a ash removal pipeline anti-blocking and dredging mechanism for a power plant proposed by the present invention;

[0017] Figure 2 This is a rear structural schematic diagram of a power plant ash removal pipeline anti-blocking and dredging mechanism proposed by the present invention;

[0018] Figure 3 A schematic diagram of the side structure of a ash removal pipeline anti-blocking and dredging mechanism for a power plant proposed by the present invention;

[0019] Figure 4 A partial upward structural diagram of a power plant ash removal pipeline anti-blocking and dredging mechanism proposed by the present invention Figure 1 ;

[0020] Figure 5 A partial upward structural diagram of a power plant ash removal pipeline anti-blocking and dredging mechanism proposed by the present invention Figure 2 .

[0021] In the figure: 1. first large disc; 2. first small disc; 3. first inner convex tooth; 4. first outer convex tooth; 5. first circular groove; 6. second screw rod; 7. knock rod; 8. second moving block; 9. second mounting box; 10. supporting leg; 11. base; 12. second large disc; 13. connecting shaft; 14. slide plate; 15. gear; 16. first screw rod; 17. first mounting box; 18. L-shaped plate; 19. rack; 20. vertical rod; 21. fan; 22. hose; 23. liquid pump; 24. liquid outlet pipe; 25. air outlet pipe; 26. rotating motor; 27. first moving block; 28. second inner convex tooth; 29. ​​second circular groove; 30. second small disc; 31. second outer convex tooth; 32. second small gear; 33. second mounting seat; 34. first mounting seat; 35. first small gear. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] Please refer to the attached Figure 1 -Attached Figure 5A ash removal pipeline anti-blocking and dredging mechanism for a power plant comprises: a base 11, a first installation box 17 is horizontally arranged above the base 11, a first screw rod 16 is horizontally rotatably connected inside the first installation box 17, a first moving block 27 is sleeved on the first screw rod 16, a second installation box 9 is vertically welded to the front side of the first moving block 27, a second screw rod 6 is vertically rotatably connected inside the second installation box 9, a second moving block 8 is sleeved on one end and the middle part of the second screw rod 6, and a knocking rod 7 is horizontally welded to the front side of the two second moving blocks 8;

[0024] A driving mechanism, the driving mechanism is used to drive the first screw rod 16 and the second screw rod 6 to rotate back and forth in both positive and negative directions, and drive the second installation box 9 to move back and forth left and right;

[0025] The dredging mechanism is used to dredge the dust removal pipeline, and the dredging mechanism includes a fan 21 and a liquid suction pump 23.

[0026] Please refer to the attached Figure 1-2 In a preferred embodiment, support legs 10 are vertically welded to the four corners of the bottom of the base 11 , a vertical rod 20 is vertically welded to the top of the base 11 , and the first installation box 17 is welded to the top of the vertical rod 20 .

[0027] The supporting legs 10 support the base 11 , and the vertical rods 20 support the first installation box 17 .

[0028] Please refer to the attached Figure 1-5 In a preferred embodiment, the front sides of the first installation box 17 and the second installation box 9 are both open structures, the first moving block 27 is connected to the first screw rod 16 through a thread, and the second moving block 8 is connected to the second screw rod 6 through a thread, and the first moving block 27 and the second moving block 8 are respectively slidably connected in the first installation box 17 and the second installation box 9.

[0029] Please refer to the attached Figure 2 In a preferred embodiment, the liquid pump 23 is installed on one side of the top of the base 11, a second mounting seat 33 is welded on one side of the top of the base 11, the fan 21 is fixedly installed on the top of the second mounting seat 33, the air inlet of the fan 21 is connected to the exhaust pipe, and the air outlet of the fan 21 is connected to the outlet pipe 25.

[0030] The second mounting base 33 provides support for the liquid pump 23 .

[0031] Please refer to the attached Figure 2 In a preferred embodiment, the liquid inlet of the liquid pump 23 is connected to a liquid suction pipe, the liquid outlet of the liquid pump 23 is connected to a liquid outlet pipe 24, valves are installed on the air outlet pipe 25 and the liquid outlet pipe 24, the other end of the liquid outlet pipe 24 is connected to the air outlet pipe 25, and the other end of the air outlet pipe 25 is connected to a hose 22.

[0032] Please refer to the attached Figure 1-5In a preferred embodiment, the driving mechanism includes a rotating motor 26, a first mounting seat 34 is welded to one side of the top of the base 11, the rotating motor 26 is horizontally fixedly installed on the top of the first mounting seat 34, and a first large disc 1 is fixedly installed at the output end of the rotating motor 26, a first circular groove 5 is opened on one side of the first large disc 1, and a first small disc 2 is welded at the center of the first circular groove 5.

[0033] The first mounting base 34 provides support for the rotary electric machine 26 .

[0034] Please refer to the attached Figure 1-5 In a preferred embodiment, a plurality of first inner convex teeth 3 are welded on a portion of the inner wall of the first circular groove 5, a plurality of first outer convex teeth 4 are welded on a portion of the outer circumference of the first small disc 2, a first pinion 35 is provided in the first circular groove 5, and the first pinion 35 is meshed with the plurality of first inner convex teeth 3 and the plurality of first outer convex teeth 4 in sequence, and one end of the first screw rod 16 passes through one side of the first mounting box 17 and is welded to the center of the first pinion 35.

[0035] Please refer to the attached Figure 1-5 In a preferred embodiment, an L-shaped plate 18 is welded on the top of the first installation box 17, a rack 19 is horizontally welded on the front side of the L-shaped plate 18, a gear 15 is meshed on the side of the rack 19, a connecting shaft 13 is vertically welded at the center of the gear 15, a slide plate 14 is horizontally slidably connected to the inner side of the L-shaped plate 18, and the connecting shaft 13 passes through the slide plate 14 and is rotatably connected to the slide plate 14.

[0036] Please refer to the attached Figure 1-5 In a preferred embodiment, a second large disc 12 is welded to the bottom end of the connecting shaft 13, a second circular groove 29 is opened at the bottom of the second large disc 12, a second small disc 30 is welded at the center of the second circular groove 29, and a plurality of second inner convex teeth 28 are welded to part of the inner wall of the second circular groove 29.

[0037] Please refer to the attached Figure 1-5 In a preferred embodiment, a plurality of second external convex teeth 31 are welded to a portion of the outer circumference of the second small disc 30, a second pinion 32 is provided in the second circular groove 29, the second pinion 32 is meshed with the plurality of second internal convex teeth 28 and the plurality of second external convex teeth 31 in sequence, and the top end of the second screw rod 6 passes through the top of the second mounting box 9 and is welded to the center of the second pinion 32.

[0038] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: when it is necessary to dredge the ash removal pipeline, the hose 22 and the ash removal pipeline are connected, the valve on the air outlet pipe 25 is opened first, and the fan 21 is started to use the air extraction pipe to extract high-pressure gas and pass it into the ash removal pipeline through the air outlet pipe 25 and the hose 22. The high-pressure gas pushes the ash, breaks the blockage, and restores the smooth flow of the pipeline; then the valve on the liquid outlet pipe 24 is opened, and the liquid extraction pump 23 is started to use the liquid extraction pipe to extract the cleaning liquid and pass it into the ash removal pipeline through the liquid outlet pipe 24, the air outlet pipe 25 and the hose 22. The cleaning liquid dissolves or loosens the residual ash and flushes the pipeline to clear the blockage. The pneumatic dredging and hydraulic dredging are combined together, and the anti-blocking and dredging effect is better, and it is not affected by the shape and length of the pipeline. Regardless of the shape of the pipeline, it can be completely dredged;

[0039] At the same time, the rotating motor 26 is started to drive the first large disk 1 to rotate, and the first large disk 1 drives the first small disk 2 to rotate together. The multiple first inner convex teeth 3 on the inner wall of the first circular groove 5 first mesh with the first pinion 3515, driving the first pinion 3515 to rotate forwardly. When the multiple first inner convex teeth 3 are engaged, the multiple first outer convex teeth 4 on the outer periphery of the first small disk 2 mesh with the first pinion 3515 again, driving the first pinion 3515 to rotate reversely. The first large disk 1 and the first small disk 2 rotate continuously, which drives the first pinion 3515 to rotate forward and reversely back and forth. The first pinion 3515 drives the first screw rod 16 to rotate forward and reversely back and forth, which drives the first moving block 27 to move back and forth left and right on the first screw rod 16. The first moving block 27 drives the second installation box 9 to move back and forth left and right, and the second installation box 9 drives the gear 15 above it to move back and forth left and right. Because the gear 15 and the rack 19 are meshed, the gear 15 moves and rotates. The gear 15 drives the second large disk 12 to rotate through the connecting shaft 13, and the second large disk 12 drives the second small disk 30 to rotate. Similarly, it drives the second small gear 3215 to rotate forward and reversely. The second small gear 3215 drives the second screw rod 6 to rotate forward and reversely, which drives the two second moving blocks 8 to move back and forth up and down on the second screw rod 6. The two second moving blocks 8 drive the two knocking rods 7 to move back and forth up and down. The two knocking rods 7 continuously knock on the ash removal pipeline to make it vibrate, thereby improving the efficiency of pneumatic dredging and hydraulic dredging.

[0040] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0041] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanism for preventing and clearing dust removal pipelines in power plants, characterized in that: include: A base (11), a first installation box (17) is horizontally arranged above the base (11), a first screw rod (16) is horizontally rotatably connected inside the first installation box (17), a first moving block (27) is sleeved on the first screw rod (16), a second installation box (9) is vertically welded to the front side of the first moving block (27), a second screw rod (6) is vertically rotatably connected inside the second installation box (9), a second moving block (8) is sleeved on one end and the middle of the second screw rod (6), and a knocking rod (7) is horizontally welded to the front side of the two second moving blocks (8); A driving mechanism, the driving mechanism is used to drive the first screw rod (16) and the second screw rod (6) to rotate back and forth in both positive and negative directions, and drive the second installation box (9) to move back and forth left and right; A dredging mechanism, which is used to dredge the dust removal pipeline, and comprises a fan (21) and a liquid extraction pump (23).

2. The anti-blocking and dredging mechanism for ash removal pipelines in power plants according to claim 1 is characterized in that: Support legs (10) are vertically welded at the four corners of the bottom of the base (11), a vertical rod (20) is vertically welded at the top of the base (11), and the first installation box (17) is welded to the top of the vertical rod (20).

3. The anti-blocking and dredging mechanism for ash removal pipelines in power plants according to claim 1 is characterized in that: The front sides of the first installation box (17) and the second installation box (9) are both open structures; the first moving block (27) is connected to the first screw rod (16) via a thread; the second moving block (8) is connected to the second screw rod (6) via a thread; the first moving block (27) and the second moving block (8) are slidably connected to the first installation box (17) and the second installation box (9) respectively.

4. The anti-blocking and dredging mechanism for ash removal pipelines in power plants according to claim 1 is characterized in that: The liquid extraction pump (23) is mounted on one side of the top of the base (11); a second mounting seat (33) is welded to one side of the top of the base (11); the fan (21) is fixedly mounted on the top of the second mounting seat (33); an air inlet of the fan (21) is connected to an air extraction pipe; and an air outlet of the fan (21) is connected to an air outlet pipe (25).

5. The anti-blocking and dredging mechanism for ash removal pipelines in power plants according to claim 4 is characterized in that: The liquid inlet of the liquid pump (23) is connected to a liquid pumping pipe, the liquid outlet of the liquid pump (23) is connected to a liquid outlet pipe (24), valves are installed on the air outlet pipe (25) and the liquid outlet pipe (24), the other end of the liquid outlet pipe (24) is connected to the air outlet pipe (25), and the other end of the air outlet pipe (25) is connected to a hose (22).

6. The anti-blocking and dredging mechanism for ash removal pipelines in power plants according to claim 1 is characterized in that: The driving mechanism comprises a rotating motor (26), a first mounting seat (34) is welded to one side of the top of the base (11), the rotating motor (26) is horizontally fixedly mounted on the top of the first mounting seat (34), a first large disc (1) is fixedly mounted on the output end of the rotating motor (26), a first circular groove (5) is formed on one side of the first large disc (1), and a first small disc (2) is welded at the center of the first circular groove (5).

7. The anti-blocking and dredging mechanism for ash removal pipelines in power plants according to claim 6 is characterized in that: A plurality of first inner convex teeth (3) are welded on a portion of the inner wall of the first circular groove (5), a plurality of first outer convex teeth (4) are welded on a portion of the outer periphery of the first small circular disc (2), a first pinion gear (35) is arranged in the first circular groove (5), the first pinion gear (35) is meshed with the plurality of first inner convex teeth (3) and the plurality of first outer convex teeth (4) in sequence, and one end of the first screw rod (16) passes through one side of the first installation box (17) and is welded to the center of the first pinion gear (35).

8. The anti-blocking and dredging mechanism for ash removal pipelines in power plants according to claim 7 is characterized in that: An L-shaped plate (18) is welded to the top of the first installation box (17), a rack (19) is horizontally welded to the front side of the L-shaped plate (18), a gear (15) is meshed on the side of the rack (19), a connecting shaft (13) is vertically welded at the center of the gear (15), a slide plate (14) is horizontally slidably connected to the inner side of the L-shaped plate (18), and the connecting shaft (13) passes through the slide plate (14) and is rotatably connected to the slide plate (14).

9. The anti-blocking and dredging mechanism for ash removal pipelines in power plants according to claim 8, characterized in that: A second large disc (12) is welded to the bottom end of the connecting shaft (13), a second circular groove (29) is provided at the bottom of the second large disc (12), a second small disc (30) is welded at the center of the second circular groove (29), and a plurality of second inner convex teeth (28) are welded to part of the inner wall of the second circular groove (29).

10. The anti-blocking and dredging mechanism for ash removal pipelines in power plants according to claim 9, characterized in that: A plurality of second external convex teeth (31) are welded on part of the outer circumference of the second small disc (30); a second pinion gear (32) is provided in the second circular groove (29); the second pinion gear (32) is meshed with the plurality of second internal convex teeth (28) and the plurality of second external convex teeth (31) in sequence; the top end of the second screw rod (6) passes through the top of the second mounting box (9) and is welded to the center of the second pinion gear (32).

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