Gasification furnace cyclone dust collector

Abstract

The utility model relates to a gasification furnace cyclone dust collector, including the cylinder, the tangential air inlet pipe of being located the upper part of cylinder, the ash valve of being located the bottom of cylinder and the exhaust pipe of being located the top of cylinder, the inboard wall of cylinder is solid and is equipped with a plurality of interval distribution of foam aluminium lining board in the circumference, the surface of foam aluminium lining board is equipped with wear -resisting ceramic coating, the top of exhaust pipe is fixedly connected with the cross pipe, the tail end of cross pipe is detachably connected with the filter pipe, a plurality of filter screen that interval distribution is solid in the filter pipe along its axial direction, the aperture of filter screen decreases from the side close to the cylinder to the other side, the filter material is filled in the filter pipe between adjacent two filter screens, the tail end of filter pipe is equipped with the quick -coupler, the utility model can effectively enhance the impact resistance and wear resistance of cylinder and add quick -detachable filter dust removal mechanism to enhance the overall dust removal effect, more practical.

Description

Technical Field

[0001] This utility model belongs to the field of gasifier dust removal technology, specifically relating to a gasifier cyclone dust removal device. Background Technology

[0002] A gasifier is an energy conversion device that converts solid fuels (such as coal and biomass) into combustible gas (syngas) under oxygen-deficient or limited oxygen conditions. It is widely used in industrial energy production, chemical processing, and civilian applications. The exhaust gas produced by gasifier combustion typically contains particulate matter (such as carbon black and ash) and sulfur dioxide (SO2), requiring dust removal treatment to reduce air pollution, mitigate equipment wear, and improve operating efficiency. Common dust removal methods include mechanical dust collection, wet dust collection, electrostatic precipitators, and filtration. Mechanical dust collection uses mechanical devices, such as cyclone dust collectors, to separate dust from flue gas. However, existing conventional cyclone dust collectors have poor impact and wear resistance to dust-laden exhaust gases, resulting in a short overall service life. Furthermore, these dust collectors are only suitable for handling larger dust particles, and their dust removal efficiency for smaller particles in the exhaust gas remains to be addressed. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a gasifier cyclone dust removal device, which can effectively enhance the impact and wear resistance of the cylinder and add a quick-release filter dust removal mechanism to enhance the overall dust removal effect, so as to solve the above problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a gasifier cyclone dust removal device, comprising a cylinder, an air inlet pipe tangentially located at the upper part of the cylinder, an ash discharge valve located at the bottom of the cylinder, and an exhaust pipe located at the top of the cylinder. A plurality of circumferentially spaced aluminum foam liners are fixedly arranged on the inner wall of the cylinder. The surface of the aluminum foam liners is coated with a wear-resistant ceramic coating. A horizontal pipe is fixedly connected to the top end of the exhaust pipe, and a filter tube is detachably connected to the tail end of the horizontal pipe. A plurality of filter screens are fixedly arranged axially in the filter tube, with the pore size of the filter screens decreasing from one side closer to the cylinder to the other. Filter media is filled in the filter tube between adjacent filter screens, and a quick connector is provided at the tail end of the filter tube.

[0005] Preferably, a support plate is fixed on the outer side of the cylinder corresponding to the filter tube, a support seat is fixed on the support plate, and an arc-shaped support groove adapted to the outer surface of the filter tube is opened on the top of the support seat, and the support groove abuts against the tail end of the filter tube.

[0006] Preferably, a plurality of mounting seats are fixedly provided on the outer periphery of the tail end of the horizontal tube. A through groove is formed on each mounting seat along the left-right direction. A motor is built into the mounting seat on the side of the through groove away from the horizontal tube. The output shaft of the motor faces the side away from the horizontal tube and extends out of the mounting seat, and is coaxially fixedly connected to a lead screw. A movable plate is threaded onto the lead screw. Limiting plates are fixedly connected to both ends of the movable plate. The limiting plates face the direction of the horizontal tube, and a guide groove communicating with the through groove is formed on the corresponding mounting seat. The limiting plate is inserted into the corresponding guide groove. A limiting blind groove is opened on the side wall of the through groove near the horizontal tube at the position corresponding to the guide groove. Several L-shaped insert plates are fixed on the outer periphery of the first end of the filter tube. Two limiting through grooves are opened on the horizontal part of the insert plate. The first end of the filter tube abuts against the tail end of the horizontal tube. The horizontal part of the insert plate corresponds to the through groove and is inserted through it. The limiting through groove and the limiting blind groove correspond to each other. The limiting plate passes through the corresponding limiting through groove and is inserted into the corresponding limiting blind groove.

[0007] Preferably, the filter tube is adapted to the horizontal tube.

[0008] Preferably, the horizontal portion of the insert plate is adapted to the corresponding through slot.

[0009] Preferably, the limiting plate is adapted to the corresponding guide groove, limiting through groove and limiting blind groove.

[0010] Preferably, a sealing ring is fixed at the first end of the filter tube.

[0011] Preferably, both ends of the lead screw are fixedly sleeved with baffles.

[0012] The beneficial effects of this utility model are as follows: In use, the inlet pipe can be connected to the exhaust port of the gasifier via a conventional pipeline. A flexible hose is then installed at the inlet of the matching conventional induced draft fan, connecting the hose to the filter tube via a quick connector. This connects the entire cyclone dust collector between the gasifier's exhaust port and the induced draft fan's inlet, allowing for dust removal of the exhaust gas generated by the gasifier during operation. The specific process is as follows: The exhaust gas first enters the cylinder tangentially through the inlet pipe and rotates downwards along the cylinder wall. Centrifugal force throws dust particles against the cylinder wall and they fall to the bottom of the cylinder, where they can be discharged through the ash discharge valve. Afterwards, the exhaust gas can rotate upwards and be discharged through the exhaust pipe, achieving cyclone dust removal. Next, the exhaust gas is conveyed to the filter tube via a horizontal pipe and flows axially through multiple filter screens with decreasing pore sizes and multiple layers of filter media, thus achieving further multi-screen filtration and multiple layers of filter media filtration. Finally, the exhaust gas is conveyed to the next stage by the induced draft fan. This allows for both cyclone dust removal and multiple-stage filtration of exhaust gases. The two dust removal methods work together to achieve higher overall dust removal quality and greater practicality. Simultaneously, the foamed aluminum lining on the inner wall of the cylinder possesses high specific stiffness, high damping, and impact resistance. Combined with a wear-resistant ceramic coating, this significantly enhances the cylinder's impact and wear resistance, making it more suitable for long-term resistance to exhaust gas impacts, extending the lifespan of the cyclone dust collector, and ensuring effective cyclone dust removal. Furthermore, after a period of use, the connection between the filter tube and the induced draft fan can be disconnected using a quick-connect coupling and hose while the machine is stopped. The detachable connection between the filter tube and the horizontal pipe allows for flexible disassembly and replacement of the filter tube, further ensuring effective dust removal and providing greater convenience and practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top view of the cylindrical body of this utility model; Figure 3 This is a schematic diagram of the main view of the tail end of the horizontal tube of this utility model; Figure 4 This is a schematic diagram of the right view of the tail end of the horizontal tube of this utility model; Figure 5 This is a schematic diagram of the main structure of the filter tube of this utility model; Figure 6 This is a schematic diagram of the left-side structure of the filter tube of this utility model; Figure 7 This is a front view structural diagram of the filter tube and the horizontal tube of this utility model; Figure 8 This is a right-side structural schematic diagram of the support base of this utility model.

[0014] The following labels are used in the diagram: 1 is the cylinder, 2 is the air inlet pipe, 3 is the ash discharge valve, 4 is the exhaust pipe, 5 is the foam aluminum liner, 6 is the wear-resistant ceramic coating, 7 is the horizontal pipe, 8 is the filter pipe, 9 is the filter screen, 10 is the filter media, 11 is the quick connector, 12 is the support plate, 13 is the support base, 14 is the support groove, 15 is the mounting base, 16 is the through groove, 17 is the motor, 18 is the lead screw, 19 is the moving plate, 20 is the limiting plate, 21 is the guide groove, 22 is the limiting blind groove, 23 is the insert plate, 24 is the limiting through groove, 25 is the sealing ring, and 26 is the baffle plate. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 8 As shown, a cyclone dust removal device for a gasifier includes a cylindrical body 1, an air inlet pipe 2 tangentially located at the upper part of the cylindrical body 1, an ash discharge valve 3 located at the bottom of the cylindrical body 1, and an exhaust pipe 4 located at the top of the cylindrical body 1. A plurality of circumferentially spaced aluminum foam liners 5 are fixedly installed on the inner wall of the cylindrical body 1, and the surface of the aluminum foam liners 5 is coated with a wear-resistant ceramic coating 6. A horizontal pipe 7 is fixedly connected to the top end of the exhaust pipe 4, and a filter pipe 8 is detachably connected to the tail end of the horizontal pipe 7. A plurality of filter screens 9 are fixedly installed inside the filter pipe 8 at equal intervals along its axial direction. The pore size of the filter screens 9 decreases from one side closer to the cylindrical body 1 to the other side. Filter media 10 is filled in the filter pipe between two adjacent filter screens 9, and a quick connector 11 is provided at the tail end of the filter pipe 8. In use, the inlet pipe 2 can be connected to the exhaust port of the gasifier via a conventional pipeline. A flexible hose is then installed at the inlet of the conventional induced draft fan, connecting it to the filter pipe 8 via a quick connector 11. This connects the entire cyclone dust collector between the gasifier's exhaust port and the induced draft fan's inlet, allowing for dust removal of the exhaust gas generated by the gasifier during operation. The specific process is as follows: the exhaust gas first enters the cylinder 1 tangentially through the inlet pipe 2 and rotates downwards along the cylinder wall. Centrifugal force throws dust particles against the cylinder wall and they fall to the bottom of the cylinder 1, where they are subsequently discharged through the ash discharge valve 3. Afterwards, the exhaust gas rotates upwards and is discharged through the exhaust pipe 4, thus achieving cyclone dust removal. Next, the exhaust gas is conveyed to the filter tube 8 through the horizontal pipe 7, and flows axially through multiple filter screens 9 with decreasing pore sizes and multiple layers of filter media 10, thus achieving further multi-screen filtration and multiple layers of filter media filtration for the exhaust gas. Afterwards, the exhaust gas can be conveyed to the next stage by the induced draft fan. In this way, cyclone dust removal and multiple-stage filtration dust removal of exhaust gas can be achieved. The two dust removal methods work together to make the overall dust removal quality higher and more practical. At the same time, the foam aluminum lining plate 5 on the inner wall of the cylinder 1 has the characteristics of high specific stiffness, high damping shock absorption and impact resistance. Combined with the wear-resistant ceramic coating 6, it can greatly enhance the impact resistance and wear resistance of the cylinder 1, thus making it more conducive to long-term acceptance of exhaust gas impact, improving the service life of the cyclone dust removal device, and ensuring the effectiveness of cyclone dust removal. Furthermore, after a period of use, the connection between the filter tube 8 and the induced draft fan can be disconnected using the quick connector 11 and the hose while the machine is stopped. Then, the filter tube 8 can be flexibly disassembled and replaced using the detachable connection between the filter tube 8 and the horizontal pipe 7, thus ensuring better filtration and dust removal efficiency and making the process more convenient and practical. The gasifier, induced draft fan, and hose are not shown in the diagram and can all be made using existing technology. The quick connector 11 can be made using existing technology; it generally consists of a male and a female connector. Simply pre-fit the male or female connector onto the end of the filter tube 8, and then pre-fit the corresponding female or male connector onto the hose connected to the air inlet of the induced draft fan. The filter media 10 can be existing conventional columnar activated carbon filter media, biological deodorization filter media, etc.

[0016] In this embodiment, a support plate 12 is fixed on the outer side of the cylinder 1 corresponding to the filter tube 8, and a support seat 13 is fixed on the support plate 12. An arc-shaped support groove 14 adapted to the outer surface of the filter tube 8 is opened on the top of the support seat 13. The support groove 14 abuts against the tail end of the filter tube 8 to strengthen the support of the filter tube 8 and improve the stability of the device.

[0017] In this embodiment, several mounting seats 15 are fixedly provided on the outer periphery of the tail end of the horizontal tube 7. A through groove 16 is provided on the mounting seat 15 along the left and right direction. A motor 17 is built into the mounting seat on the side of the through groove 16 away from the horizontal tube 7. The output shaft of the motor 17 faces the side away from the horizontal tube 7 and extends out of the mounting seat 15 and is coaxially fixedly connected to a lead screw 18. A movable plate 19 is threaded onto the lead screw 18. Limiting plates 20 are fixedly connected to both the left and right ends of the movable plate 19. The limiting plate 20 faces the direction of the horizontal tube 7 and a guide groove 21 communicating with the through groove 16 is provided on the corresponding mounting seat 15. The limiting plate 20 is inserted into the corresponding guide groove 21. A limiting blind groove 22 is provided on the groove wall of the through groove 16 near the horizontal tube 7 at the position corresponding to the guide groove 21. Several L-shaped insert plates 23 are fixed on the outer periphery of the first end of the filter tube 8. Two limiting through grooves 24 are opened on the horizontal part of the insert plate 23. The first end of the filter tube 8 abuts against the tail end of the horizontal tube 7. The horizontal part of the insert plate 23 corresponds to the through groove 16 and is inserted through it. The limiting through groove 24 corresponds to the limiting blind groove 22. The limiting plate 20 passes through the corresponding limiting through groove 24 and is inserted into the corresponding limiting blind groove 22. When installing the filter tube 8, first place the filter tube 8 on the support base 13 and align the horizontal part of the insert plate 23 with the corresponding through groove 16. Then, control the filter tube 8 to move towards the horizontal tube 7 until the first end of the filter tube 8 presses against the tail end of the horizontal tube 7. At this time, the horizontal part of the insert plate 23 can be inserted through and positioned in the corresponding through groove 16, and the limiting through groove 24 is aligned with the corresponding limiting blind groove 22. Next, the motor 17 is run, which drives the lead screw 18 to rotate forward. With the threaded connection between the moving plate 19 and the lead screw 18, the fixed connection between the moving plate 19 and the limiting plate 20, and the insertion of the limiting plate 20 and the guide groove 21, the forward rotation of the lead screw 18 can drive the moving plate 19 and the limiting plates 20 at both ends to move as a whole towards the direction of the horizontal tube 7, so that the limiting plate 20 can pass through the corresponding limiting through groove 24 and be inserted into the corresponding limiting blind groove 22, thereby locking the insertion plate 23. This completes the docking and fixed installation between the filter tube 8 and the horizontal tube 7. After that, it is connected to the hose on the induced draft fan through the quick connector 11 and can then be put into use. To disassemble filter tube 8, simply disconnect the connection between filter tube 8 and the induced draft fan using quick connector 11 while the machine is stopped. Then, run motor 17 to reverse the lead screw 18, causing the moving plate 19 and limiting plate 20 to move away from the horizontal tube 7 until the limiting plate 20 exits from the corresponding limiting slot 24. This releases the lock on the horizontal part of the insert plate 23. Then, move filter tube 8 away from the horizontal tube 7 to pull the horizontal part of the insert plate 23 out of the through slot 16, thus removing filter tube 8 from the horizontal tube 7. Finally, remove the entire filter tube 8 from the support base 13. This allows for flexible and convenient disassembly and replacement of filter tube 8, simplifying operation and making the overall device more flexible and convenient to use, ensuring better filtration and dust removal effects, and making it more practical. A conventional forward and reverse motor can be used for motor 17.

[0018] In this embodiment, the filter tube 8 is adapted to the horizontal tube 7 to ensure that the filter tube 8 is successfully installed in place by pressing against the horizontal tube.

[0019] In this embodiment, the horizontal portion of the insert plate 23 is adapted to the corresponding through slot 16 to ensure that the horizontal portion of the insert plate 23 is smoothly inserted and installed in place.

[0020] In this embodiment, the limiting plate 20 is adapted to the corresponding guide groove 21, limiting through groove 24 and limiting blind groove 22 to ensure the smooth movement and insertion of the limiting plate 20.

[0021] In this embodiment, a sealing ring 25 is fixed at the first end of the filter tube 8 to ensure the sealing of the connection between the filter tube 8 and the horizontal tube 7.

[0022] In this embodiment, both ends of the lead screw 18 are fixedly sleeved with baffles 26 to limit the movement of the moving plate 19.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 cyclone dust collector for a gasifier, comprising a cylindrical body, a tangential air inlet pipe located at the upper part of the cylindrical body, an ash discharge valve located at the bottom of the cylindrical body, and an exhaust pipe located at the top of the cylindrical body, characterized in that, The inner wall of the cylinder is fixed with several circumferentially spaced aluminum foam liners. The surface of the aluminum foam liners is coated with a wear-resistant ceramic coating. A horizontal pipe is fixedly connected to the top of the exhaust pipe. A filter tube is detachably connected to the tail end of the horizontal pipe. Several filter screens are fixedly arranged along the axial direction of the filter tube. The pore size of the filter screens decreases from one side closer to the cylinder to the other side. Filter media is filled in the filter tube between two adjacent filter screens. A quick connector is provided at the tail end of the filter tube.

2. The gasifier cyclone dust collector according to claim 1, characterized in that, A support plate is fixed on the outer side of the cylinder corresponding to the filter tube, and a support seat is fixed on the support plate. An arc-shaped support groove adapted to the outer surface of the filter tube is opened on the top of the support seat, and the support groove abuts against the tail end of the filter tube.

3. The gasifier cyclone dust collector according to claim 1, characterized in that, Several mounting seats are fixed on the outer periphery of the tail end of the horizontal tube. A through groove is opened on the mounting seat along the left and right direction. A motor is built into the mounting seat on the side of the through groove away from the horizontal tube. The output shaft of the motor faces the side away from the horizontal tube and extends out of the mounting seat and is coaxially fixedly connected to a lead screw. A movable plate is threaded onto the lead screw. Limiting plates are fixedly connected to both ends of the movable plate. The limiting plate faces the direction of the horizontal tube and has a guide groove on its corresponding mounting seat that communicates with the through groove. The limiting plate is inserted into the corresponding guide groove. A limiting blind groove is opened on the groove wall of the through groove near the horizontal tube at the position corresponding to the guide groove. Several L-shaped insert plates are fixed on the outer periphery of the head end of the filter tube. Two limiting through grooves are opened on the horizontal part of the insert plate. The head end of the filter tube abuts against the tail end of the horizontal tube. The horizontal part of the insert plate corresponds to the through groove and is inserted through it. The limiting through groove and the limiting blind groove correspond to each other. The limiting plate passes through the corresponding limiting through groove and is inserted into the corresponding limiting blind groove.

4. The gasifier cyclone dust collector according to claim 3, characterized in that, The filter tube is compatible with the horizontal tube.

5. The gasifier cyclone dust collector according to claim 3, characterized in that, The horizontal portion of the insert plate is adapted to the corresponding through slot.

6. The gasifier cyclone dust collector according to claim 3, characterized in that, The limiting plate is adapted to the corresponding guide groove, limiting through groove and limiting blind groove.

7. The gasifier cyclone dust collector according to claim 3, characterized in that, A sealing ring is fixed at the first end of the filter tube.

8. The gasifier cyclone dust collector according to claim 3, characterized in that, Both ends of the lead screw are fixedly sleeved with retaining plates.

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