High-temperature isolation device for oxygen recovery and dust removal backflushing system in lithium battery roller kiln

Abstract

This utility model relates to the field of environmental protection and discloses a high-temperature isolation device for a backflushing system of oxygen recovery dust removal in a lithium-ion roller kiln. It includes a high-temperature isolation protection device located between the blowpipes. One side of the blowpipe is connected to a blowpipe assembly, which is equipped with a pulse valve. The gas injected from the blowpipe is directed towards the filter bag. The high-temperature isolation protection device includes a pipe, a valve disc, a fixed seat, a rotating shaft, and a retaining ring. The valve disc is connected to a moving rod via a connecting rod and an electro-hydraulic actuator. A replacement blowpipe is provided in the through hole of the valve disc in the middle of the fixed seat. During dust removal, the blowpipe of the backflushing system is disconnected by covering the pipe with the valve disc, isolating the blowpipe from heat conduction and the high-temperature oxygen in the pipe, preventing the pulse valve temperature from rising. During dust removal, the valve disc is rotated to open, connecting the blowpipe of the backflushing system. Since pulse dust removal only takes a few seconds, the valve disc is closed after pulse dust removal to protect the pulse valve and ensure stable operation of the entire system.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection, specifically a high-temperature isolation device for an oxygen recovery and dust removal backflushing device in a lithium-ion roller kiln. Background Technology

[0002] The high-temperature dust collector in the oxygen recovery system of the lithium battery roller kiln is designed for a temperature of 400℃. It uses high-temperature resistant filter cartridges for filtration. As the filter cartridges filter, more and more dust accumulates on their outer surface. Therefore, a pulse backflushing device is installed. By opening the pulse valve on the pulse backflushing device, a high-speed nitrogen gas is instantly sprayed into the filter cartridge. The dust on the outer surface of the filter cartridge is cleaned away through the instantaneous pressure difference, achieving a dust removal effect.

[0003] The inlet temperature of the dust collector often exceeds 350℃. The entire dust collector is made of stainless steel. The temperature of the flue gas is conducted to the entire reverse-flushing device through the stainless steel blow pipe. The reverse-flushing device is equipped with a pulse valve. Currently, the highest temperature that domestic and foreign pulse valves can withstand is only 200℃. Once the temperature exceeds 200℃, the rubber diaphragm inside the pulse valve will be damaged, causing the entire reverse-flushing device to fail, the filter cartridges to be unable to clean dust, the entire dust collector to be blocked, and seriously affecting the entire system.

[0004] Document CN 218130587 U discloses a composite bag filter for blast furnace gas heat and cold exchange, comprising an elliptical outer shell and a bidirectional pulse backflushing device installed inside the shell. The bidirectional pulse backflushing device includes a pulse valve, a jet gas manifold, a shut-off valve, a jet pipe, and nozzles. Both ends of the jet pipe are connected to the jet gas manifold, and a shut-off valve is installed between the jet gas manifold and the jet pipe. A pulse valve is installed on the jet gas manifold, and nozzles are connected to the bottom of the jet pipe. During use, the components inside the pulse valve are prone to damage, reducing the overall service life of the device.

[0005] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Summary of the Invention

[0006] To address the aforementioned issues, this utility model discloses a high-temperature isolation device for an oxygen recovery and dust removal backflushing device in a lithium-ion roller kiln. This device effectively prevents backflushing device failure, extends the service life of the rubber diaphragm inside the pulse valve, increases the overall system lifespan, and reduces costs.

[0007] The technical solution of this utility model is as follows: a high-temperature isolation device for oxygen recovery dust removal backflushing device of lithium battery roller kiln, including a high-temperature isolation protection device located between the spray pipes, the spray pipe on one side of the high-temperature isolation protection device is connected to the spray bag, the spray bag is equipped with a pulse valve, the gas sprayed in the spray pipe is directed towards the filter bag, the high-temperature isolation protection device includes a pipe, a valve disc, a fixed seat, a rotating shaft and a retaining ring, the valve disc is connected to the moving rod of the connecting rod and the electro-hydraulic push rod, and a replacement spray pipe is provided on the through hole of the valve disc in the middle of the fixed seat.

[0008] By adopting the above technical solution, the sliding rod is pushed by the electro-hydraulic actuator, which in turn drives the rotating shaft to rotate, thereby causing the valve disc to rotate. The valve disc's replacement blowpipe and the valve disc itself open and block the pipe, thus achieving two states: cleaning and not cleaning.

[0009] Preferably, the fixing seat is rhomboid in shape, with a tube passing through the center of the fixing seat, and a fixing shaft and a rotating shaft passing through the upper and lower parts of the fixing seat, respectively. One fixing seat's tube is connected to the end of the blow pipe on one side of the filter bag, and the other fixing seat is connected to the blow pipe connected to the blow bag.

[0010] By adopting the above technical solution, the pipe on the fixed seat is connected to the blowpipes on both sides, serving as the intermediate medium for valve switching and connected to the blowpipes.

[0011] Preferably, there is a gap between the pipes, and a valve disc and a replacement blow pipe are installed in the gap between the pipes. The valve disc is in the shape of one-third of a fan.

[0012] By adopting the above technical solution, the valve disc is fan-shaped, and the bottom of the valve disc rotates with the rotating shaft, thereby opening and closing the pipe to achieve the states of cleaning and not cleaning.

[0013] Preferably, a through hole is provided on one side of the valve disc, and a replacement blow pipe is provided on the side of the through hole away from the filter bag. The diameter of the replacement blow pipe is the same as that of the main pipe, and the other side is a flat surface that covers the inner surface of the pipe on the side closest to the filter bag.

[0014] By adopting the above technical solution, when the dust removal state is in progress, the replacement blowpipe is connected to the pipes at both ends, and the blowpipes at both ends are connected to achieve dust removal. When dust removal is not required, the valve cover covers the pipe close to the filter bag, causing the blowpipe to disconnect, isolating the heat conduction of the blowpipe and the high-temperature oxygen in the pipeline, and preventing the pulse valve temperature from rising.

[0015] Preferably, a limiting plate is provided around the periphery of the pipe. The limiting plate is arc-shaped, and its opening direction is opposite to the direction of movement of the substitute blow pipe.

[0016] By adopting the above technical solution, when the valve disc rotates with the rotating shaft and it is necessary to replace the blowpipe connecting the pipes on both sides, the limiting plate can quickly position the replacement blowpipe to prevent it from deviating.

[0017] Preferably, the lower middle part of the valve disc passes through the rotating shaft and is fixedly connected, the middle part of the rotating shaft is connected to one end of the connecting rod via a rotating plate, and the other end of the connecting rod is connected to the fixed plate on the upper part of the sliding rod.

[0018] Preferably, the fixing plate is vertically fixed on the sliding rod, the sliding rod is located on the base, the base is located on the platform, and the two ends of the sliding rod are respectively connected to the output end of the electro-hydraulic actuator.

[0019] By adopting the above technical solution, the sliding rod is displaced on the base by extending one electro-hydraulic actuator on both sides and retracting the other. This drives the connecting rod, which in turn causes the rotating plate to rotate the rotating shaft. The valve disc rotates with the rotating shaft, ultimately realizing the opening and closing of the valve disc on the pipe.

[0020] The advantages of this utility model are: 1. When cleaning the dust, the valve cover covers the pipe, that is, the valve of the high temperature protection device is closed, the back-flushing device's spray pipe is disconnected, the heat conduction of the spray pipe and the high temperature oxygen in the pipe are isolated, and the temperature of the pulse valve is prevented from rising.

[0021] 2. When cleaning, this utility model only requires rotating the valve to open it, and then connecting the back-flushing device's blowpipe. Since pulse cleaning only takes a few seconds, closing the valve after pulse cleaning can effectively prevent the pulse valve from overheating, protect the pulse valve, and ensure the stable operation of the entire system.

[0022] 3. This utility model can effectively prevent the backflush device from failing, extend the service life of the rubber diaphragm in the pulse valve, increase the service life of the entire system, and reduce costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 A top view of the structure; Figure 3 This is a schematic diagram of the high-temperature isolation protection device of this utility model; Figure 4 This is a schematic diagram of the valve disc opening structure of this utility model; Figure 5 This is a schematic diagram of the valve disc closure structure of this utility model; Figure 6 This is a schematic diagram of the structure of the base of the high-temperature isolation protection device of this utility model; Figure 7 This is a schematic diagram of the structure of the closing valve disc of the high-temperature isolation protection device of this utility model; Figure 8This is a schematic diagram of the structure of the high-temperature isolation protection device of this utility model with the valve disc open.

[0024] The components are as follows: 1. Platform, 2. Pulse valve, 3. Pulse pack, 4. Pulse pipe, 5. High temperature protection device, 501. Fixed shaft, 502. Fixed seat, 503. Valve disc, 504. Through hole, 505. Replacement pulse pipe, 506. Pipe, 507. Rotating shaft, 508. Limiting plate, 6. Filter bag, 7. Rotating plate, 8. Connecting rod, 9. Sliding rod, 10. Base, 11. Electro-hydraulic actuator. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] like Figure 1-8 As shown, the high-temperature isolation device for the oxygen recovery dust removal backflushing device of the lithium battery roller kiln includes a high-temperature isolation protection device 5 located between the blow pipes 5064. The blow pipe 5064 on one side of the high-temperature isolation protection device 5 is connected to the blow bag 3. The blow bag 3 is equipped with a pulse valve 2. The outside of the blow pipe 5064 is a filter bag 6. The high-temperature isolation protection device 5 includes a pipe 506, a valve disc 503, a fixed seat 502, a rotating shaft 507, and a retaining ring. The valve disc 503 is connected to the moving rod of the electro-hydraulic push rod 11 through the connecting rod 8. A substitute blow pipe 505 is provided on the through hole 504 of the valve disc 503 in the middle of the fixed seat 502. The sliding rod 9 is pushed by the electro-hydraulic push rod 11, so that the connecting rod 8 drives the rotating shaft 507 to rotate, thereby causing the valve disc 503 to rotate. The substitute blow pipe 505 of the valve disc 503 and the valve disc 503 itself open and block the pipe 506, thereby realizing two states: dust removal and no dust removal.

[0027] The fixed seat 502 is rhomboid in shape, with a pipe 506 passing through its center. The upper and lower parts of the fixed seat 502 are respectively connected to a fixed shaft 501 and a rotating shaft 507. One of the fixed seats 502's pipes 506 are connected to the end of a blow pipe 5064 on one side of the filter bag 6. The other fixed seat 502 is connected to a blow pipe 5064 connected to the blow bag 3. The pipe 506 on the fixed seat 502 is connected to the blow pipes 5064 on both sides, serving as an intermediate medium for the valve disc 503 to switch, and is connected to the blow pipes 5064.

[0028] There is a gap between the pipes 506. A valve disc 503 and a replacement blow pipe 505 are installed in the gap between the pipes 506. The valve disc 503 is in the shape of a one-third fan. The bottom of the valve disc 503 rotates with the rotating shaft 507, thereby opening and closing the pipes 506 to achieve the state of cleaning and not cleaning.

[0029] A through hole 504 is provided on one side of the valve disc 503. A replacement blow pipe 505 is provided on the side of the through hole 504 away from the filter bag 6. The diameter of the replacement blow pipe 505 is the same as that of the pipe 506. The other side is a flat surface that covers the inner surface of the pipe 506 near the filter bag 6. When the dust is being cleaned, the replacement blow pipe 505 is connected to the pipes 506 at both ends, and the blow pipes 5064 at both ends are connected to achieve dust cleaning. When dust cleaning is not required, the valve disc 503 covers the pipe 506 near the filter bag 6, so that the blow pipe 5064 is disconnected, isolating the heat conduction of the blow pipe 5064 and the high temperature oxygen in the pipe 506, thus preventing the temperature of the pulse valve 2 from rising.

[0030] A limiting plate 508 is provided around the pipe 506. The limiting plate 508 is arc-shaped and its opening direction is opposite to the direction of movement of the substitute blow pipe 505. When the valve disc 503 rotates with the rotating shaft 507, and the substitute blow pipe 505 needs to connect the pipes 506 on both sides, the limiting plate 508 can make the substitute blow pipe 505 quickly positioned to prevent it from deviating.

[0031] The lower middle part of the valve disc 503 passes through the rotating shaft 507 and is fixedly connected. The middle part of the rotating shaft 507 is connected to one end of the connecting rod 8 through the rotating plate 7. The other end of the connecting rod 8 is connected to the fixed plate on the upper part of the sliding rod 9.

[0032] The fixed plate is vertically fixed on the sliding rod 9, the sliding rod 9 is located on the base 10, the base 10 is located on the platform 1, and the two ends of the sliding rod 9 are respectively connected to the output ends of the electro-hydraulic actuator 11. By extending one side of the electro-hydraulic actuator 11 and retracting the other side, the sliding rod 9 is displaced on the base 10, which can drive the connecting rod 8, thereby causing the rotating plate 7 to drive the rotating shaft 507 to rotate, so that the valve disc 503 rotates with the rotating shaft 507, and finally realizes the opening and closing of the valve disc 503 to the pipe 506.

[0033] When cleaning, the sliding rod 9 is pushed by the electro-hydraulic push rod 11 on the base 10 of the high temperature protection device 5, so that the valve 503 of the high temperature protection device 5 is closed, the blow pipe 4 of the back-flushing device is disconnected, the heat conduction of the blow pipe 4 and the high temperature oxygen in the pipeline are isolated, and the temperature of the pulse valve 2 is prevented from rising.

[0034] During dust removal, the sliding rod 9 is pushed by the electro-hydraulic push rod 11 on the base 10 of the high-temperature protection device 5, which opens the valve 503 of the high-temperature protection device 5 and connects the blow pipe 4 of the back-flushing device. Since pulse dust removal can be completed in just a few seconds, the pulse dust removal closing valve 503 can effectively prevent the pulse valve temperature from rising, protect the pulse valve 2, and ensure the stable operation of the entire system.

[0035] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A high-temperature isolation device for an oxygen recovery dust removal backflushing system in a lithium battery roller kiln, comprising a high-temperature isolation protection device located between the blowpipes, wherein one side of the blowpipe is connected to a blowpipe assembly, the blowpipe assembly is equipped with a pulse valve, and the gas injected into the blowpipe is directed toward the filter bag, characterized in that: The high-temperature protection device includes a pipe, a valve disc, a fixed seat, a rotating shaft, and a retaining ring. The valve disc is connected to the moving rod of the connecting rod and the electro-hydraulic actuator. A replacement blow pipe is provided on the through hole of the valve disc in the middle of the fixed seat.

2. The high-temperature isolation device for the oxygen recovery and dust removal backflushing device of the lithium battery roller kiln according to claim 1, characterized in that: The fixing seat is rhomboid in shape, with a tube passing through its center. A fixing shaft and a rotating shaft pass through its upper and lower parts, respectively. The tube of one fixing seat is connected to the end of a blowpipe on one side of the filter bag, and the other fixing seat is connected to a blowpipe connected to the blow-off bag.

3. The high-temperature isolation device for the oxygen recovery and dust removal backflushing device of the lithium battery roller kiln according to claim 2, characterized in that: The pipes are spaced apart, and a valve disc and a backup blow pipe are installed within the space between the pipes. The valve disc is in the shape of a one-third fan.

4. The high-temperature isolation device for the oxygen recovery dust removal backflushing device of the lithium battery roller kiln according to claim 3, characterized in that: The valve disc has a through hole on one side, and a replacement blow pipe is provided on the side of the through hole away from the filter bag. The diameter of the replacement blow pipe is the same as that of the pipe, and the other side is a flat surface that covers the inner surface of the pipe near the filter bag.

5. The high-temperature isolation device for the oxygen recovery and dust removal backflushing device of the lithium battery roller kiln according to claim 4, characterized in that: The outer periphery of the tube is provided with a limiting plate, which is arc-shaped and its opening direction is opposite to the direction of movement of the substitute blow pipe.

6. The high-temperature isolation device for the oxygen recovery and dust removal backflushing device of the lithium battery roller kiln according to claim 1, characterized in that: The lower middle part of the valve disc passes through the rotating shaft and is fixedly connected. The middle part of the rotating shaft is connected to one end of the connecting rod via a rotating plate. The other end of the connecting rod is connected to the fixed plate on the upper part of the sliding rod.

7. The high-temperature isolation device for the oxygen recovery and dust removal backflushing device of the lithium battery roller kiln according to claim 6, characterized in that: The fixing plate is vertically fixed on the sliding rod, the sliding rod is located on the base, the base is located on the platform, and the two ends of the sliding rod are respectively connected to the output end of the electro-hydraulic actuator.

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