Rapid connecting and pulling-out device for denitration pipe

Abstract

The utility model relates to the technical field of flue gas denitration, and discloses a denitration pipe quick connecting and pulling-out device which comprises a connecting block, two pipe bodies are arranged at the bottom of the connecting block, a first connector is fixedly connected to the left side of each pipe body, a first connecting groove is formed in the right side of each pipe body, and a conical head is arranged on the right side of the inner wall of each pipe body. The outer surface of the conical head is rotationally connected with evenly-distributed connecting pieces, the outer surface of the conical head is fixedly connected with evenly-distributed springs, and the right side of the conical head is fixedly connected with a connecting pipe. According to the utility model, the connecting block is arranged between the two pipe bodies, after the connecting rod connected with the conical head extends into the pipe bodies, the connecting piece is shrunk on the outer wall of the conical head due to the extrusion of the connecting block, after passing through the connecting block, the conical head is pulled back, the connecting piece is exploded, the conical head and the connecting piece form a cam to clamp the connecting block, and the pipe bodies are pulled out; the problem that the denitration pipe is not easy to pull out when being damaged in the using process is solved.

Description

Technical Field

[0001] This utility model relates to the field of flue gas denitrification technology, and in particular to a quick connection and pull-out device for denitrification pipes. Background Technology

[0002] In flue gas denitrification systems, denitrification tubes are used in coke oven combustion exhaust gas purification technology for desulfurization and denitrification. They are made of nitride-bonded silicon carbide materials, which have excellent thermal shock stability and corrosion resistance. The production of ultra-long ceramic denitrification tubes is achieved by using threaded connections, thereby ensuring the long-term stable operation of the coke oven denitrification system.

[0003] The existing quick-connection and pull-out devices for denitrification pipes are installed between the denitrification pipe and the denitrification equipment. After the denitrification pipe is inserted into the denitrification equipment, it is quickly installed and fixed by a clamping component. When it is necessary to remove the denitrification pipe, the quick-connection and pull-out device can also assist in the manual quick removal of the denitrification pipe. However, if the denitrification pipe is damaged and cannot be pulled out during use, the failure to replace it in time will seriously affect the desulfurization and denitrification effect of the coke oven. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a quick connection and pull-out device for denitrification tubes, which aims to improve the problem of denitrification tubes being difficult to pull out when damaged during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick connection and removal device for a denitrification tube, comprising a connecting block, two tube bodies at the bottom of the connecting block, a first connecting head fixedly connected to the left side of the tube body, a first connecting groove opened on the right side of the tube body, a conical head provided on the right side of the inner wall of the tube body, a uniformly distributed connecting piece rotatably connected to the outer surface of the conical head, a uniformly distributed spring fixedly connected to the outer surface of the conical head, a connecting pipe fixedly connected to the right side of the conical head, a third connecting groove opened on the right side of the connecting pipe, a second connecting head threadedly connected to the right side of the third connecting groove, a connecting rod fixedly connected to the right side of the second connecting head, a second connecting groove opened on the right side of the connecting rod, and an auxiliary removal component provided on the right side of the connecting rod, the auxiliary removal component being used to assist in easy removal of the denitrification tube when it is pulled out vertically.

[0006] Preferably, the auxiliary pull-out assembly includes a lead screw, which is threadedly connected to the second connecting groove on its left side. A component box is provided on the right side of the lead screw. A rotating wheel is rotatably connected to the front side of the component box. A worm gear is fixedly connected to the rear side of the rotating wheel. A worm wheel is threadedly connected to the outer surface of the worm gear. A limit member is fixedly connected to the top of the inner wall of the component box. A sliding groove is provided on the top of the lead screw. Two fixing plates are fixedly connected to the left side of the component box.

[0007] Preferably, the first connecting groove and the first connecting head are threaded together.

[0008] Preferably, the connecting block is tightly fitted to the pipe body.

[0009] Preferably, the connector is fixedly connected to the spring.

[0010] Preferably, the connector and the connecting block are tightly fitted together.

[0011] Preferably, the inner wall of the worm gear is threadedly connected to the outer surface of the lead screw.

[0012] Preferably, the groove and the limiting member are slidably connected.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by setting a connecting block between two pipe bodies, after the connecting rod with the conical head is inserted into the pipe body, the connecting part is squeezed and contracted on the outer wall of the conical head due to the connecting block. After passing the connecting block, the conical head is pulled back, the connecting part explodes, and the conical head and the connecting part form a cam to lock the connecting block, pulling out the pipe body. This solves the problem of the denitrification pipe being damaged and difficult to pull out during use.

[0015] 2. In this utility model, when it is necessary to vertically pull out the denitrification tube, a screw is connected to the right side of the connecting rod. After the connecting rod and the screw are inserted into the tube body, the worm and worm wheel are rotated by rotating the rotating wheel. Due to the threaded connection between the worm wheel and the screw, and because the screw is limited by the limiting component, it will only be driven by the worm wheel to move left and right. By rotating the rotating wheel, the screw and the connecting rod are pulled out of the furnace, which solves the problem of the denitrification tube being difficult to pull out vertically. Attached Figure Description

[0016] Figure 1 This is a perspective view of a quick connection and disconnection device for a denitrification tube proposed in this utility model;

[0017] Figure 2 This is a cross-sectional view of the tube body of a quick connection and pull-out device for denitrification tubes proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the connector of a quick connection and pull-out device for denitrification tubes proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the lead screw of a quick connection and pull-out device for denitrification pipe proposed in this utility model.

[0020] Legend:

[0021] 1. Pipe body; 2. Connecting block; 3. First connecting groove; 4. First connector; 5. Connecting rod; 6. Second connector; 7. Second connecting groove; 8. Connecting pipe; 9. Conical head; 10. Connecting piece; 11. Spring; 12. Third connecting groove; 13. Lead screw; 14. Worm gear; 15. Limiting piece; 16. Rotary wheel; 17. Worm; 18. Slide groove; 19. Component box; 20. Fixing plate. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figures 1-3 This utility model provides an embodiment of a quick connection and pull-out device for a denitrification tube, comprising a connecting block 2, two tube bodies 1 at the bottom of the connecting block 2, a first connecting head 4 fixedly connected to the left side of the tube body 1, a first connecting groove 3 opened on the right side of the tube body 1, a conical head 9 provided on the right side of the inner wall of the tube body 1, a uniformly distributed connecting piece 10 rotatably connected to the outer surface of the conical head 9, a uniformly distributed spring 11 fixedly connected to the outer surface of the conical head 9, a connecting pipe 8 fixedly connected to the right side of the conical head 9, a third connecting groove 12 opened on the right side of the connecting pipe 8, a second connecting head 6 threadedly connected to the right side of the third connecting groove 12, a connecting rod 5 fixedly connected to the right side of the second connecting head 6, a second connecting groove 7 opened on the right side of the connecting rod 5, and an auxiliary pull-out component provided on the right side of the connecting rod 5, the auxiliary pull-out component being used to assist in easy pull-out when vertically pulling out the denitrification tube.

[0024] Specifically, by setting a connecting block 2 between the two tubes 1, after the connecting rod 5 with the conical head 9 is inserted into the tube 1, the connecting piece 10 is compressed and contracted on the outer wall of the conical head 9 due to the compression of the connecting block 2. After passing the connecting block 2, the conical head 9 is pulled back, the connecting piece 10 bursts open, and the conical head 9 and the connecting piece 10 form a cam to lock the connecting block 2, pulling out the tube 1. This solves the problem of the denitrification tube being damaged and difficult to pull out during use.

[0025] Reference Figure 4 The auxiliary pull-out component includes a lead screw 13, which is threadedly connected to the second connecting groove 7 on the left side. A component box 19 is provided on the right side of the lead screw 13. A rotating wheel 16 is rotatably connected to the front side of the component box 19. A worm gear 17 is fixedly connected to the rear side of the rotating wheel 16. A worm wheel 14 is threadedly connected to the outer surface of the worm gear 17. A limit member 15 is fixedly connected to the top of the inner wall of the component box 19. A sliding groove 18 is opened on the top of the lead screw 13. Two fixing plates 20 are fixedly connected to the left side of the component box 19.

[0026] Specifically, when it is necessary to vertically pull out the denitrification tube, a lead screw 13 is connected to the right side of the connecting rod 5. After the connecting rod 5 and the lead screw 13 are inserted into the tube body 1, the worm gear 17 and the worm wheel 14 are rotated by rotating the rotating wheel 16. Due to the threaded connection between the worm wheel 14 and the lead screw 13, and because the lead screw 13 is limited by the limiting member 15, it will only be moved by the worm wheel 14 and will not rotate. When pulling out the denitrification tube, due to the long-term fixation between the denitrification tube and the furnace body, the connection is fixed and difficult to pull out. With the help of rotating the rotating wheel 16, the lead screw 13 and the connecting rod 5 are pulled out of the furnace, and the connection between the tube body 1 and the furnace body is disengaged, thus solving the problem of difficulty in vertically pulling out the denitrification tube.

[0027] Reference Figure 1 The first connecting groove 3 and the first connecting head 4 are threaded together.

[0028] Specifically, the left and right ends of the tube body 1 are respectively fixedly connected to the first connector 4 and the first connecting groove 3. The two tube bodies 1 are connected end to end, and the two tube bodies 1 are connected together by the threaded connection between the first connecting groove 3 and the first connector 4.

[0029] Reference Figure 2 The connecting block 2 and the pipe body 1 are tightly fitted together.

[0030] Specifically, at the connection between the two tubes 1, the external fixed connection block 2 extends to the inner wall of the tube 1.

[0031] Reference Figure 3 The connector 10 is fixedly connected to the spring 11.

[0032] Specifically, a spring 11 is fixedly connected between the connector 10 and the conical head 9. When the outer wall of the connector 10 is subjected to pressure, the connector 10 retracts and adheres tightly to the conical head 9. After the pressure is released, the connector 10 bursts open and forms a cam shape with the conical head 9.

[0033] Reference Figure 2 The connector 10 and the connector block 2 fit together tightly.

[0034] Specifically, after the conical head 9 passes the connecting block 2, the compression disappears, the connecting piece 10 explodes, and when the conical head 9 is retracted, the connecting piece 10 engages and hooks the connecting block 2, pulling the connecting rod 5 and the tube 1 out of the furnace.

[0035] Reference Figure 4 The inner wall of the worm gear 14 is threadedly connected to the outer surface of the lead screw 13.

[0036] Specifically, when the rotating wheel 16 rotates, the worm 17 rotates, and the worm 17 drives the worm wheel 14 to rotate. At the same time as the worm wheel 14 rotates, it drives the lead screw 13, which is threadedly connected to it, to move.

[0037] Reference Figure 4 The slide groove 18 and the limiting member 15 are slidably connected.

[0038] Specifically, when the lead screw 13 is driven by the worm gear 14, it will rotate. Since the lead screw 13 is slidably connected to the limiting member 15 through the groove 18 on its outer surface, the lead screw 13 will only move left and right, thereby causing the connecting rod 5 to be pulled out.

[0039] Working principle: After the denitrification tube is damaged in the furnace, the conical head 9, connecting rod 5 and screw 13 are connected in sequence according to the required length, and then inserted into the tube body 1. The connecting piece 10 is compressed and contracted on the outer wall of the conical head 9 due to the compression of the connecting block 2. After passing the connecting block 2, the conical head 9 is pulled back, the connecting piece 10 bursts open, and the conical head 9 and the connecting piece 10 form a cam to lock the connecting block 2, pulling out the tube body 1.

[0040] When the denitrification tube needs to be pulled out vertically or when the connection between the denitrification tube and the furnace body is fixed for a long time and is difficult to pull out, the lead screw 13 is connected to the worm wheel 14. By rotating the rotating wheel 16, the worm 17 and the worm wheel 14 are rotated. Due to the threaded connection between the worm wheel 14 and the lead screw 13, and because the lead screw 13 is limited by the limiting member 15, it will only be moved by the worm wheel 14 and will not rotate. When the lead screw 13 and the connecting rod 5 are pulled out of the furnace by the assistance of rotating the rotating wheel 16, the connection between the tube body 1 and the furnace body is disengaged, which helps to pull out the denitrification tube.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick connection and disconnection device for denitrification pipes, comprising a connecting block (2), characterized in that: The bottom of the connecting block (2) is provided with two tubes (1). The left side of the tube (1) is fixedly connected with a first connector (4). The right side of the tube (1) is provided with a first connecting groove (3). The right side of the inner wall of the tube (1) is provided with a conical head (9). The outer surface of the conical head (9) is rotatably connected with evenly distributed connectors (10). The outer surface of the conical head (9) is fixedly connected with evenly distributed springs (11). The right side of the conical head (9) is fixedly connected with a connecting pipe (8). The right side of the connecting pipe (8) is provided with a third connecting groove (12). The right side of the third connecting groove (12) is threadedly connected with a second connector (6). The right side of the second connector (6) is fixedly connected with a connecting rod (5). The right side of the connecting rod (5) is provided with a second connecting groove (7). The right side of the connecting rod (5) is provided with an auxiliary pull-out component. The auxiliary pull-out component is used to help pull out the denitrification tube vertically.

2. The quick connection and disconnection device for a denitrification tube according to claim 1, characterized in that: The auxiliary pull-out assembly includes a lead screw (13), which is threadedly connected to the second connecting groove (7) on the left side. A component box (19) is provided on the right side of the lead screw (13). A rotating wheel (16) is rotatably connected to the front side of the component box (19). A worm gear (17) is fixedly connected to the rear side of the rotating wheel (16). A worm wheel (14) is threadedly connected to the outer surface of the worm gear (17). A limiting member (15) is fixedly connected to the top of the inner wall of the component box (19). A sliding groove (18) is opened on the top of the lead screw (13). Two fixing plates (20) are fixedly connected to the left side of the component box (19).

3. The quick connection and disconnection device for a denitrification tube according to claim 1, characterized in that: The first connecting groove (3) is threadedly connected to the first connecting head (4).

4. The quick connection and disconnection device for a denitrification tube according to claim 1, characterized in that: The connecting block (2) is tightly fitted to the tube body (1).

5. The quick connection and disconnection device for a denitrification tube according to claim 1, characterized in that: The connector (10) is fixedly connected to the spring (11).

6. The quick connection and disconnection device for a denitrification tube according to claim 1, characterized in that: The connector (10) and the connector (2) are tightly fitted together.

7. The quick connection and disconnection device for a denitrification tube according to claim 2, characterized in that: The inner wall of the worm gear (14) is threadedly connected to the outer surface of the lead screw (13).

8. The quick connection and disconnection device for a denitrification tube according to claim 2, characterized in that: The slide groove (18) is slidably connected to the limiting member (15).

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