Automatic cleaning device for low-pressure pure oxygen gasification furnace

Abstract

This utility model relates to the field of gasification furnace technology and discloses an automatic cleaning device for a low-pressure pure oxygen gasification furnace. The device includes a gasification furnace, on which an exhaust pipe is fixedly installed. A filter box is installed on one side of the exhaust pipe, and a smoke guide pipe is installed on one side of the filter box. Filter screen one and filter screen two are fixedly installed inside the filter box. A cleaning component is installed inside the filter box, and a detection component is installed on the filter box. This utility model, through the cleaning component, allows flue gas to flow through the filter box. As the flue gas flows, filter screen one and filter screen two filter the flue gas. When severe blockage is detected in the mesh of filter screen one and filter screen two, a servo motor is controlled to drive a drive gear to rotate, which in turn meshes with a movable ring to drive a drive shaft to rotate. The rotation of the drive shaft drives a cleaning brush to scrape and clean the dust from filter screen one and filter screen two, ensuring normal exhaust and filtration of the flue gas.

Description

Technical Field

[0001] This utility model relates to the field of gasification furnace technology, and in particular to an automatic cleaning device for a low-pressure pure oxygen gasification furnace. Background Technology

[0002] A gasifier is a device that can convert solid fuels into gaseous fuels. In a gasifier, solid fuels are decomposed into combustible gases, such as coal gas and syngas, under high temperature and high pressure conditions. These gases are then used for purposes such as power generation, heating, drying, and industrial production.

[0003] Gasifiers typically generate waste gas during operation, which needs to be discharged through a flue. When the waste gas is discharged, it needs to pass through a filter to remove the dust mixed in with the waste gas in order to avoid environmental pollution. However, after long-term use, the filter screen inside the filter will accumulate a lot of dust on its surface. When too much dust accumulates on the filter screen, it will affect the normal filtration and discharge of subsequent waste gas.

[0004] Therefore, we propose an automatic cleaning device for low-pressure pure oxygen gasification furnaces. Utility Model Content

[0005] The present invention aims to solve the technical problems existing in the prior art and provide an automatic cleaning device for a low-pressure pure oxygen gasification furnace.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic cleaning device for a low-pressure pure oxygen gasification furnace, comprising a gasification furnace, a flue pipe fixedly installed on the gasification furnace, a filter box provided on one side of the flue pipe, a smoke guide pipe provided on one side of the filter box, a filter screen one fixedly installed inside the filter box, a filter screen two fixedly installed inside the filter box, a cleaning component provided inside the filter box, and a detection component provided on the filter box.

[0007] The cleaning assembly includes a drive shaft, which is rotatably mounted inside the filter box. Two cleaning brushes are movably mounted on the drive shaft, and the cleaning brushes are in contact with filter screen one and filter screen two.

[0008] Preferably, the cleaning assembly further includes a drive gear, which is rotatably mounted inside the filter box, and a movable ring is rotatably mounted inside the filter box.

[0009] Preferably, the filter box has an annular groove for installing a movable ring. The movable ring is rotatably installed inside the annular groove. The movable ring meshes with the drive gear and is fixedly connected to the drive shaft. A connecting component is provided on the drive shaft, and two cleaning brushes are movably installed on the drive shaft through the connecting component.

[0010] Preferably, the connecting assembly includes connecting blocks, two connecting blocks are movably mounted inside the drive shaft, and a support plate is rotatably mounted on the connecting blocks.

[0011] Preferably, an electric push rod is fixedly installed inside the drive shaft, the telescopic end of the electric push rod is fixedly connected to two connecting blocks, and one end of the support plate is rotatably connected to the corresponding cleaning brush.

[0012] Preferably, the detection component includes a mounting ring, which is fixedly installed inside the filter box. A mounting plate is fixedly installed inside the mounting ring, and a distance sensor is fixedly installed on one side of the mounting plate. A movable block is movably installed inside the filter box, and a detection block is fixedly installed on the movable block.

[0013] Preferably, the detection assembly further includes positioning shafts, two positioning shafts are fixedly mounted on a mounting plate, two springs are fixedly mounted on the mounting plate, the springs are sleeved with the positioning shafts, the moving block is sleeved with the positioning shafts, and the moving block is fixedly connected to one end of the spring.

[0014] This utility model provides an automatic cleaning device for a low-pressure pure oxygen gasification furnace. Compared with the prior art, it has the following improvements and advantages: By setting up a cleaning component, the flue gas flows through the inside of the filter box. When the flue gas flows, filter screen one and filter screen two can filter the flue gas. When it is detected that the mesh holes on filter screen one and filter screen two are severely blocked, the servo motor is controlled to drive the drive gear to rotate and drive the drive shaft to rotate by meshing with the movable ring. When the drive shaft rotates, it can drive the cleaning brush to scrape and clean the dust from filter screen one and filter screen two, ensuring the normal discharge and filtration of flue gas. When filter screen one and filter screen two do not need to be cleaned, the cleaning brush is stored inside the drive shaft to avoid dust adhering to the cleaning brush and affecting subsequent cleaning. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of an automatic cleaning device for a low-pressure pure oxygen gasification furnace proposed in this utility model;

[0017] Figure 2 A schematic diagram of the cleaning component in an automatic cleaning device for a low-pressure pure oxygen furnace, as proposed in this utility model.

[0018] Figure 3A schematic diagram of the connecting components in an automatic cleaning device for a low-pressure pure oxygen gasification furnace, as proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the detection component in an automatic cleaning device for a low-pressure pure oxygen gasification furnace, as proposed in this utility model.

[0020] Legend:

[0021] 1. Gasifier; 2. Exhaust pipe; 3. Filter box; 4. Smoke guide pipe; 5. Filter screen one; 6. Filter screen two; 7. Movable ring; 8. Drive gear; 9. Drive shaft; 10. Cleaning brush; 11. Mounting ring; 12. Mounting plate; 13. Positioning shaft; 14. Spring; 15. Moving block; 16. Detection block; 17. Support plate; 18. Connecting block; 19. Distance sensor. Detailed Implementation

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

[0023] An automatic cleaning device for a low-pressure pure oxygen gasification furnace, such as Figure 1 - Figure 4 As shown, the system includes a gasifier 1, on which an exhaust pipe 2 is fixedly installed. A filter box 3 is installed on one side of the exhaust pipe 2, and the filter box 3 is fixedly connected to the exhaust pipe 2 via a connecting flange and fasteners. A guide pipe 4 is installed on one side of the filter box 3, and the guide pipe 4 is fixedly connected to the filter box 3 via a connecting flange and fasteners. A first filter screen 5 and a second filter screen 6 are fixedly installed inside the filter box 3. The mesh size of the second filter screen 6 is half that of the first filter screen 5. A cleaning component is provided inside the filter box 3 to clean the residue adhering to the first filter screen 5 and the second filter screen 6. The filter box 3 is equipped with a detection component to clean the smoke and dust. When the mesh of filter screen 5 and filter screen 6 is clogged due to excessive smoke and dust adhesion, the detection component can detect the clogging of filter screen 5 and filter screen 6 and control the cleaning component to clean filter screen 5 and filter screen 6 in a timely manner. By setting up the detection component, when the mesh of filter screen 5 and filter screen 6 is clogged due to excessive smoke and dust adhesion, the detection component can detect the clogging of filter screen 5 and filter screen 6 and control the cleaning component to clean filter screen 5 and filter screen 6 in a timely manner to ensure the normal filtration and discharge of smoke and gas.

[0024] Furthermore, the cleaning assembly includes a drive shaft 9, which is rotatably mounted inside the filter box 3. Two cleaning brushes 10 are movably mounted on the drive shaft 9, and the cleaning brushes 10 contact the first filter screen 5 and the second filter screen 6. A connecting assembly is provided on the drive shaft 9, through which the two cleaning brushes 10 are movably mounted. A drive gear 8 is rotatably mounted inside the filter box 3, driven by a servo motor. A movable ring 7 is rotatably mounted inside the filter box 3, and an annular groove for mounting the movable ring 7 is provided on the filter box 3. The movable ring 7 is rotatably mounted inside the annular groove, meshing with the drive gear 8, and fixed to the drive shaft 9. Connection; With the cleaning component installed, the flue gas flows through the inside of the filter box 3. When the flue gas flows, the filter screen 5 and the filter screen 6 can filter the flue gas. When it is detected that the mesh of the filter screen 5 and the filter screen 6 is severely blocked, the servo motor is controlled to drive the drive gear 8 to rotate and mesh with the movable ring 7 to drive the drive shaft 9 to rotate. When the drive shaft 9 rotates, it can drive the cleaning brush 10 to scrape and clean the filter screen 5 and the filter screen 6 to ensure the normal discharge and filtration of the flue gas. When the filter screen 5 and the filter screen 6 do not need to be cleaned, the cleaning brush 10 is stored inside the drive shaft 9 to prevent the dust from adhering to the cleaning brush 10 and affecting subsequent cleaning.

[0025] Furthermore, the connecting assembly includes connecting blocks 18, two connecting blocks 18 are movably installed inside the drive shaft 9, an electric push rod is fixedly installed inside the drive shaft 9, the telescopic end of the electric push rod is fixedly connected to the two connecting blocks 18, the electric push rod is electrically connected to an external controller, a support plate 17 is rotatably installed on the connecting blocks 18, one end of the support plate 17 is rotatably connected to the corresponding cleaning brush 10; by setting the connecting assembly, when it is not necessary to clean the first filter screen 5 and the second filter screen 6, the electric push rod is controlled to drive the connecting blocks 18 to slide, and when the connecting blocks 18 slide, the two support plates 17 are driven to rotate to store the cleaning brush 10 inside the drive shaft 9. When it is necessary to clean the first filter screen 5 and the second filter screen 6, it is only necessary to control the support plate 17 to drive the cleaning brush 10 to be pushed to the outside of the drive shaft 9 in a vertical position, so as to avoid the problem that the flue gas will adhere to the cleaning brush 10 during normal discharge and affect the subsequent dust cleaning.

[0026] Furthermore, the detection component includes a mounting ring 11, which is fixedly installed inside the filter box 3. A mounting plate 12 is fixedly installed inside the mounting ring 11. A distance sensor 19 is fixedly installed on one side of the mounting plate 12 and is electrically connected to an external controller. Two positioning shafts 13 are fixedly installed on the mounting plate 12, and two springs 14 are fixedly installed on the mounting plate 12, with the springs 14 sleeved with the positioning shafts 13. A movable block 15 is movably installed inside the filter box 3, sleeved with the positioning shafts 13. One end of the movable block 15 is fixedly connected to one end of the spring 14, and a detection block 16 is fixedly installed on the movable block 15. The distance sensor 19 can sense the distance between itself and the detection block 16. By providing this detection component... During the operation of the gasifier, flue gas is discharged from the exhaust pipe 2. The discharged flue gas is filtered in the filter box 3 before being discharged. During normal operation of the gasifier, the flue gas flows through the inside of the filter box 3. At this time, the movable block 15 is moved away from the gasifier 1 by the action of the flue gas. At this time, the distance sensor 19 can sense the distance between itself and the detection block 16. If, under normal operation of the gasifier, the distance between the distance sensor 19 and the detection block 16 gradually decreases or approaches zero, it indicates that the flue gas cannot be discharged normally. In this case, the mesh of filter screen 5 and filter screen 6 may be clogged. Subsequently, the cleaning component can be controlled to clean filter screen 5 and filter screen 6 to ensure the normal discharge and filtration of flue gas.

[0027] The working principle of this utility model is as follows: During the operation of the gasifier, flue gas is discharged from the exhaust pipe 2. The discharged flue gas is filtered in the filter box 3 before being discharged. During normal operation of the gasifier, the flue gas flows through the inside of the filter box 3. At this time, the movable block 15 is moved away from the gasifier 1 by the action of the flue gas. At this time, the distance sensor 19 can sense the distance between itself and the detection block 16. If, under normal operation of the gasifier, the distance between the distance sensor 19 and the detection block 16 gradually decreases or approaches zero, it indicates that the flue gas cannot be discharged normally, and the filter screen 5 and the filter screen 6 may be malfunctioning. If the mesh is clogged, the electric push rod can be controlled to drive the connecting block 18 to slide. When the connecting block 18 slides, it drives the two support plates 17 to rotate, so that the cleaning brush 10 is housed inside the drive shaft 9. When it is necessary to clean the filter screen 5 and the filter screen 6, simply control the support plate 17 to drive the cleaning brush 10 to push it to the outside of the drive shaft 9 and make it vertical. Control the servo motor to drive the drive gear 8 to rotate and drive the drive shaft 9 to rotate by meshing with the movable ring 7. When the drive shaft 9 rotates, it can drive the cleaning brush 10 to scrape and clean the filter screen 5 and the filter screen 6, so as to ensure the normal discharge and filtration of the flue gas.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning device for a low-pressure pure oxygen gasification furnace, comprising a gasification furnace (1), wherein a flue pipe (2) is fixedly installed on the gasification furnace (1), a filter box (3) is provided on one side of the flue pipe (2), and a smoke guide pipe (4) is provided on one side of the filter box (3), characterized in that: The filter box (3) is fixedly installed with filter screen one (5), filter screen two (6) is fixedly installed inside the filter box (3), a cleaning component is provided inside the filter box (3), and a detection component is provided on the filter box (3); The cleaning assembly includes a drive shaft (9), which is rotatably mounted inside the filter box (3). Two cleaning brushes (10) are movably mounted on the drive shaft (9), and the cleaning brushes (10) are in contact with filter screen one (5) and filter screen two (6).

2. The automatic cleaning device for a low-pressure pure oxygen gasification furnace according to claim 1, characterized in that: The cleaning assembly also includes a drive gear (8), which is rotatably mounted inside the filter box (3), and a movable ring (7) is rotatably mounted inside the filter box (3).

3. The automatic cleaning device for a low-pressure pure oxygen gasification furnace according to claim 2, characterized in that: The filter box (3) has an annular groove for installing the movable ring (7). The movable ring (7) is rotatably installed inside the annular groove. The movable ring (7) meshes with the drive gear (8). The movable ring (7) is fixedly connected to the drive shaft (9). A connecting component is provided on the drive shaft (9). Two cleaning brushes (10) are movably installed on the drive shaft (9) through the connecting component.

4. The automatic cleaning device for a low-pressure pure oxygen gasification furnace according to claim 3, characterized in that: The connecting assembly includes connecting blocks (18), two connecting blocks (18) are movably mounted inside the drive shaft (9), and a support plate (17) is rotatably mounted on the connecting blocks (18).

5. The automatic cleaning device for a low-pressure pure oxygen gasification furnace according to claim 4, characterized in that: An electric push rod is fixedly installed inside the drive shaft (9). The telescopic end of the electric push rod is fixedly connected to two connecting blocks (18), and one end of the support plate (17) is rotatably connected to the corresponding cleaning brush (10).

6. The automatic cleaning device for a low-pressure pure oxygen gasification furnace according to claim 1, characterized in that: The detection component includes a mounting ring (11), which is fixedly installed inside the filter box (3). A mounting plate (12) is fixedly installed inside the mounting ring (11). A distance sensor (19) is fixedly installed on one side of the mounting plate (12). A movable block (15) is movably installed inside the filter box (3). A detection block (16) is fixedly installed on the movable block (15).

7. The automatic cleaning device for a low-pressure pure oxygen gasification furnace according to claim 6, characterized in that: The detection assembly also includes positioning shafts (13), two positioning shafts (13) are fixedly mounted on the mounting plate (12), two springs (14) are fixedly mounted on the mounting plate (12), the springs (14) are sleeved with the positioning shafts (13), the moving block (15) is sleeved with the positioning shafts (13), and the moving block (15) is fixedly connected to one end of the springs (14).

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