Leak-proof high-temperature-resistant feeding device

Abstract

The utility model provides a leakproof high-temperature-resistant feeding device, which relates to the technical field of feeding devices and comprises a first outer pipe, a first inner pipe is arranged in the first outer pipe, and a second outer pipe is arranged at the bottom of the first outer pipe. During use, a worker inserts the first inner pipe into the second inner pipe, at the moment, the two flange plates are attached to each other, then the worker connects the two flange plates together in a welding mode, the air tightness of an ash channel is guaranteed, then the worker rotates the grip, the sliding block ascends, and when the fixing plate makes contact with a ceiling or other fixing structures, the fixing plate is fixed to the ceiling or other fixing structures. A worker can use a bolt to penetrate through the through hole to fix the device, so that the counter force brought by the expansion joint can be completely transmitted to the supporting plate when a boiler operates in a thermal state, and the phenomenon that a welding seam is locally cracked and equipment is damaged due to the fact that torque is formed at the root of a slag pipe connector is avoided; and the heat insulation layer can enable the surface wall temperature of the slag falling pipe to be lower than 150 DEG C.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to a leakage-proof and high-temperature-resistant feeding device. Background Art

[0002] The slag cooler is a key device for ensuring the safe and efficient operation of circulating fluidized bed boilers. The boiler's cold gate system cools the high-temperature bottom ash discharged from the furnace to below 150°C, facilitating its transportation and handling. It also regulates the furnace bed charge, ensuring a good fluidized state within the furnace and maintaining normal combustion conditions within the circulating fluidized bed boiler.

[0003] In the existing technology, the slag cooler's inlet pipe is made of 310s stainless steel and is assembled on-site. As a key feed channel for the slag conveying system, it is prone to metal fatigue due to prolonged high-temperature operation. Furthermore, since the equipment is assembled and welded, the structural strength of the spliced ​​welds is relatively high during operation. When the equipment is put into operation, the rapid temperature rise and resulting thermal expansion of the equipment can easily cause cracking and slag leakage in the spliced ​​welds. Furthermore, since the slag cooler's inlet pipe lacks thermal insulation, its surface temperature remains high during operation, posing a risk of burns to inspection personnel and on-site equipment. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art that the spliced ​​welds of the slag feed pipe are prone to cracking and slag leakage, and the surface operating temperature of the slag feed pipe is high during equipment operation, which poses a risk of scalding inspection personnel and on-site equipment. A leakage-proof and high-temperature resistant feeding device is proposed.

[0005] In order to achieve the above-mentioned objectives, the utility model adopts the following technical solutions: a leakage-proof and high-temperature resistant feeding device, comprising a first outer tube, a first inner tube is arranged inside the first outer tube, a second outer tube is arranged at the bottom of the first outer tube, a second inner tube is arranged inside the second outer tube, an insulation layer is fixedly connected between the first outer tube and the first inner tube and between the second outer tube and the second inner tube, flanges are fixedly installed on the outer walls of the first outer tube and the second outer tube, a support plate is fixedly installed on the outer wall of the second outer tube, an adjustment seat is fixedly installed on the top of the support plate, a slide groove is provided on the outer wall of the adjustment seat, a threaded rod is rotatably installed inside the slide groove, the top of the threaded rod passes through the adjustment seat and is fixedly installed with a turntable, a handle is fixedly installed on the top of the turntable, a slider is threadedly connected to the outer wall of the threaded rod, a fixing rod is fixedly installed on the top of the slider, a fixing plate is fixedly installed on the top of the fixing rod, and four evenly distributed through holes are opened through the top of the fixing plate.

[0006] Preferably, a fixing seat is fixedly installed on the outer wall of the first outer tube, a movable frame is provided inside the fixing seat, two springs are fixedly installed on both sides of the outer side of the movable frame, and one end of the two springs away from the movable frame is fixedly connected to the inner wall of the fixing seat.

[0007] Preferably, limiting rods are fixedly installed on both sides of the exterior of the movable frame, and opposite sides of the two limiting rods are slidably plugged into the fixing seats.

[0008] Preferably, placement plates are fixedly installed on both sides of the interior of the movable frame, and rubber heads are fixedly installed on opposite sides of the two placement plates.

[0009] Preferably, an abutment plate is fixedly mounted on the outer wall of the movable frame.

[0010] Preferably, a storage plate is fixedly mounted on the inner wall of the fixing seat, a motor is fixedly mounted on the outer wall of the storage plate, and an output end of the motor passes through the storage plate and is fixedly mounted with a cam.

[0011] Preferably, the outer wall of the slider is in contact with the inner wall of the chute.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the present invention, when in use, the staff inserts the first inner tube into the second inner tube. At this time, the two flanges fit each other, and then the staff connects the two together by welding to ensure the airtightness of the ash channel. Then the staff rotates the handle, the threaded rod rotates, and then drives the slider to rise. When the fixing plate contacts the ceiling or other fixed structure, the staff can use bolts to pass through the through hole to fix the device. The fixing plate can bear the dead weight of the slag drop pipe. The function of the support plate is to ensure that the slag drop pipe and its corresponding boiler slag discharge port position remain relatively stationary in the horizontal direction when the boiler expands in a hot state, and at the same time ensure that the slag drop pipe can freely expand vertically downward with the boiler; in this way, it can be ensured that when the boiler is hot running, the reaction force brought by the expansion joint is fully transmitted to the support plate, thereby avoiding (due to the force) the formation of torque at the root of the slag pipe interface, causing local weld cracking and equipment damage, and the thermal insulation layer can make the surface wall temperature of the slag drop pipe lower than 150°C.

[0014] 2. In the utility model, when in use, the staff can start the motor and the cam rotates. When the cam contacts the abutment plate, the abutment plate can be pushed to move, thereby driving the moving frame to move. The rubber head contacts the outer wall of the first outer tube and hits it. When the cam leaves, the elastic force of the spring drives the other rubber head to hit the outer wall of the first outer tube, back and forth, continuously hitting the first outer tube. The vibration generated can accelerate the movement of the slag and prevent blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall three-dimensional diagram of a leak-proof and high-temperature resistant feeding device proposed by the utility model;

[0016] Figure 2 This is a cross-sectional view of the first outer tube of a leak-proof and high-temperature resistant feeding device proposed by the utility model;

[0017] Figure 3 A three-dimensional diagram of the adjustment seat of a leak-proof and high-temperature resistant feeding device proposed in the utility model;

[0018] Figure 4 The utility model provides a three-dimensional diagram of the internal structure of a fixing seat of a leakage-proof and high-temperature-resistant feeding device.

[0019] Legend: 1. First outer tube; 2. Second outer tube; 3. Support plate; 4. Adjustment seat; 5. Fixed seat; 6. First inner tube; 7. Second inner tube; 8. Insulation layer; 9. Flange; 10. Slide; 11. Threaded rod; 12. Turntable; 13. Handle; 14. Slider; 15. Fixed rod; 16. Fixed plate; 17. Through hole; 18. Moving frame; 19. Spring; 20. Limit rod; 21. Placement plate; 22. Rubber head; 23. Abutment plate; 24. Storage plate; 25. Motor; 26. Cam. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1, as Figures 1-4As shown, the utility model provides a leakage-proof and high-temperature resistant feeding device, including a first outer tube 1, a first inner tube 6 is arranged inside the first outer tube 1, a second outer tube 2 is arranged at the bottom of the first outer tube 1, a second inner tube 7 is arranged inside the second outer tube 2, and a heat insulation layer 8 is fixedly connected between the first outer tube 1 and the first inner tube 6 and between the second outer tube 2 and the second inner tube 7. Flanges 9 are fixedly installed on the outer walls of the first outer tube 1 and the second outer tube 2, a support plate 3 is fixedly installed on the outer wall of the second outer tube 2, an adjustment seat 4 is fixedly installed on the top of the support plate 3, a slide groove 10 is provided on the outer wall of the adjustment seat 4, a threaded rod 11 is rotatably installed inside the slide groove 10, the top of the threaded rod 11 passes through the adjustment seat 4 and is fixedly installed with a turntable 12, a handle 13 is fixedly installed on the top of the turntable 12, a slider 14 is threadedly connected to the outer wall of the threaded rod 11, a fixing rod 15 is fixedly installed on the top of the slider 14, a fixing plate 16 is fixedly installed on the top of the fixing rod 15, and four evenly distributed through holes 17 are opened through the top of the fixing plate 16.

[0023] The effect achieved by the entire embodiment 1 is that, when in use, the staff inserts the first inner tube 6 into the second inner tube 7. At this time, the two flanges 9 fit each other, and then the staff connects the two together by welding to ensure the airtightness of the ash channel. Then the staff rotates the handle 13, the threaded rod 11 rotates, and then drives the slider 14 to rise. When the fixing plate 16 contacts the ceiling or other fixed structure, the staff can use bolts to pass through the through hole 17 to fix the device. The fixing plate 16 can withstand the dead weight of the slag pipe. The function of the support plate 3 is to ensure that the slag pipe and its corresponding boiler slag outlet position remain relatively stationary in the horizontal direction when the boiler expands in a hot state, and at the same time ensure that the slag pipe can freely expand vertically downward with the boiler; in this way, it can be ensured that when the boiler is hot, the reaction force brought by the expansion joint is fully transmitted to the support plate 3, thereby avoiding (due to the force) the formation of torque at the root of the slag pipe interface, causing local weld cracking and equipment damage, and the thermal insulation layer 8 can make the surface wall temperature of the slag pipe lower than 150°C.

[0024] Example 2, as Figures 1-4 As shown, further, a fixed seat 5 is fixedly installed on the outer wall of the first outer tube 1, a movable frame 18 is provided inside the fixed seat 5, and two springs 19 are fixedly installed on both sides of the outside of the movable frame 18, and the ends of the two springs 19 away from the movable frame 18 are fixedly connected to the inner wall of the fixed seat 5.

[0025] Furthermore, limiting rods 20 are fixedly installed on both sides of the exterior of the movable frame 18 , and opposite sides of the two limiting rods 20 are slidably plugged into the fixing base 5 .

[0026] Furthermore, placement plates 21 are fixedly installed on both sides of the interior of the movable frame 18 , and rubber heads 22 are fixedly installed on opposite sides of the two placement plates 21 .

[0027] Furthermore, a stop plate 23 is fixedly mounted on the outer wall of the movable frame 18 .

[0028] Furthermore, a storage plate 24 is fixedly mounted on the inner wall of the fixing base 5 , a motor 25 is fixedly mounted on the outer wall of the storage plate 24 , and an output end of the motor 25 passes through the storage plate 24 and is fixedly mounted with a cam 26 .

[0029] Furthermore, the outer wall of the slider 14 fits in contact with the inner wall of the slide groove 10 to prevent the slider 14 from tilting when moving.

[0030] The effect achieved by the entire embodiment 2 is that, when in use, the staff can start the motor 25 and the cam 26 rotates. When the cam 26 contacts the abutment plate 23, it can push the abutment plate 23 to move, thereby driving the moving frame 18 to move, and the rubber head 22 contacts the outer wall of the first outer tube 1 and hits it. When the cam 26 leaves, the elastic force of the spring 19 drives the other rubber head 22 to hit the outer wall of the first outer tube 1, back and forth, continuously hitting the first outer tube 1, and the vibration generated can accelerate the movement of the slag and prevent blockage.

[0031] Working principle: The first inner tube 6 and the second inner tube 7 are made of high heat-resistant and wear-resistant rare earth cast steel. The slag tube can withstand temperatures of more than 1100°C. When in use, the staff inserts the first inner tube 6 into the second inner tube 7. At this time, the two flanges 9 fit each other. Then the staff uses welding to connect the two together to ensure the airtightness of the ash channel. Then the staff rotates the handle 13, the threaded rod 11 rotates, and then drives the slider 14 to rise. When the fixing plate 16 contacts the ceiling or other fixed structure, the staff can use bolts through the through hole 17 to fix the device. The fixed plate 16 can bear the weight of the slag pipe. The support plate 3 ensures that the slag pipe remains relatively stationary horizontally with its corresponding boiler slag outlet during thermal expansion of the boiler, while also ensuring that the slag pipe can expand freely vertically downward with the boiler's thermal expansion. This ensures that when the boiler is hot, the reaction force generated by the expansion joint is fully transmitted to the support plate 3, thereby preventing the formation of torque at the root of the slag pipe interface (due to this force), which could cause local weld cracking and equipment damage. Furthermore, the thermal insulation layer 8 can keep the surface temperature of the slag pipe below 150°C. During use, a worker can start the motor 25, rotating the cam 26. When the cam 26 contacts the abutment plate 23, it pushes the abutment plate 23 to move, thereby driving the movable frame 18 to move. The rubber head 22 contacts and strikes the outer wall of the first outer tube 1. When the cam 26 leaves, the elastic force of the spring 19 drives the other rubber head 22 to strike the outer wall of the first outer tube 1, repeatedly striking the first outer tube 1. The vibration generated accelerates the movement of slag and prevents blockage.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A leak-proof and high-temperature resistant feeding device, comprising a first outer tube (1), characterized in that: A first inner tube (6) is provided inside the first outer tube (1), a second outer tube (2) is provided at the bottom of the first outer tube (1), a second inner tube (7) is provided inside the second outer tube (2), a heat insulation layer (8) is fixedly connected between the first outer tube (1) and the first inner tube (6) and between the second outer tube (2) and the second inner tube (7), a flange (9) is fixedly installed on the outer walls of the first outer tube (1) and the second outer tube (2), a support plate (3) is fixedly installed on the outer wall of the second outer tube (2), an adjustment seat (4) is fixedly installed on the top of the support plate (3), and the The outer wall of the adjustment seat (4) is provided with a slide groove (10), a threaded rod (11) is rotatably installed inside the slide groove (10), the top of the threaded rod (11) passes through the adjustment seat (4) and is fixedly installed with a turntable (12), the top of the turntable (12) is fixedly installed with a handle (13), the outer wall of the threaded rod (11) is threadedly connected with a slider (14), the top of the slider (14) is fixedly installed with a fixing rod (15), the top of the fixing rod (15) is fixedly installed with a fixing plate (16), and the top of the fixing plate (16) is provided with four evenly distributed through holes (17) passing through.

2. The leak-proof and high-temperature resistant feeding device according to claim 1, characterized in that: A fixing seat (5) is fixedly mounted on the outer wall of the first outer tube (1), a movable frame (18) is provided inside the fixing seat (5), two springs (19) are fixedly mounted on both sides of the outer side of the movable frame (18), and one end of the two springs (19) away from the movable frame (18) is fixedly connected to the inner wall of the fixing seat (5).

3. The leak-proof and high-temperature resistant feeding device according to claim 2, characterized in that: Limiting rods (20) are fixedly mounted on both sides of the exterior of the movable frame (18), and opposite sides of the two limiting rods (20) are slidably plugged into the fixing seat (5).

4. The leak-proof and high-temperature resistant feeding device according to claim 2, characterized in that: Placement plates (21) are fixedly mounted on both sides of the interior of the movable frame (18), and rubber heads (22) are fixedly mounted on opposite sides of the two placement plates (21).

5. The leak-proof and high-temperature resistant feeding device according to claim 2, characterized in that: An abutment plate (23) is fixedly mounted on the outer wall of the movable frame (18).

6. The leak-proof and high-temperature resistant feeding device according to claim 2, characterized in that: A storage plate (24) is fixedly mounted on the inner wall of the fixing seat (5), a motor (25) is fixedly mounted on the outer wall of the storage plate (24), and an output end of the motor (25) passes through the storage plate (24) and is fixedly mounted with a cam (26).

7. The leak-proof and high-temperature resistant feeding device according to claim 1, characterized in that: The outer wall of the slider (14) fits in contact with the inner wall of the chute (10).

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