Waste gas pretreatment device for RTO

Abstract

The waste gas pretreatment device comprises a filter box, a cleaning box and a fixing support, the filter box and the cleaning box are fixedly installed on the fixing support in parallel, an air inlet is formed in the left end of the filter box, an air outlet is formed in the right end of the filter box, and the opposite sides of the cleaning box and the filter box are fixedly connected. A plurality of sliding grooves are formed in the filter box along the side wall, a filter plate is slidably installed in the sliding grooves, a push rod is fixedly connected to one side of the filter plate, an air cylinder is fixedly installed on the side, away from the filter box, of the cleaning box, and the push rod penetrates through the side wall of the cleaning box and is fixedly connected with the output end of the air cylinder. A fixed frame is fixedly installed at the position, located on the left side of the sliding groove, in the cleaning box, a sliding plate is slidably installed in the fixed frame, and a cleaning brush is fixedly installed on the side, facing the sliding groove, of the sliding plate, the filter box and the filter plate are arranged, waste gas is filtered through the filter plate, and it is avoided that dust in the waste gas enters the RTO combustion furnace, and operation of equipment is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of RTO waste gas pretreatment, in particular to a waste gas pretreatment device for RTO. Background Art

[0002] RTO is a highly efficient organic waste gas treatment equipment. Compared with traditional catalytic combustion and direct-fired thermal oxidation furnaces, it has the characteristics of high thermal efficiency, low operating cost, and the ability to treat a large amount of low-concentration waste gas. Its principle is to oxidize the organic matter in the waste gas into corresponding carbon dioxide and water at high temperature, thereby purifying the waste gas and recovering the heat released when the waste gas decomposes.

[0003] However, the exhaust gas contains a lot of dust. After entering the RTO combustion furnace, the dust will adhere to the surface of the heater and the heat storage body, affecting the normal operation of the equipment and reducing the exhaust gas purification efficiency. Therefore, we proposed an exhaust gas pretreatment device for RTO. Utility Model Content

[0004] The utility model aims to provide a waste gas pretreatment device for RTO, which can prevent dust in the waste gas from entering the interior of the RTO combustion furnace and solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust gas pretreatment device for RTO, comprising a filter box, a cleaning box and a fixed bracket, the filter box and the cleaning box are fixedly installed in parallel on the fixed bracket, the left end of the filter box is provided with an air inlet, the right end of the filter box is provided with an exhaust port, the cleaning box and the filter box are fixedly connected on the opposite side, a plurality of through holes are opened in parallel at the connection between the cleaning box and the filter box, a plurality of chutes are provided along the side wall of the filter box, one end of the plurality of chutes passes through the corresponding through holes and extends to the side wall of the cleaning box away from the filter box, a filter plate is slidably installed in the chute, a push rod is fixedly connected to the side of the filter plate facing the cleaning box, a cylinder is fixedly installed on the side of the cleaning box away from the filter box, one end of the push rod away from the filter plate passes through the side wall of the cleaning box and is fixedly connected to the output end of the cylinder, a fixed frame is fixedly installed on the left side of the chute in the cleaning box, a slide plate is slidably installed in the fixed frame, a cleaning brush is fixedly installed on the side of the slide plate facing the chute, and a collection box is fixedly installed at the bottom of the cleaning box.

[0006] The organic waste gas enters the filter box from the air inlet, is filtered by the filter plate, and is discharged from the exhaust port to the RTO combustion furnace. Multiple filter plates enter the filter box alternately in turn to filter the waste gas. When the filter plate in the filter box is blocked by dust, other filter plates in the cleaning box are pushed into the filter box by the corresponding cylinders and push rods to replace the blocked filter plates. The blocked filter plates are pulled back into the cleaning box by the corresponding cylinders and push rods, and then cleaned by the corresponding cleaning brush in the cleaning box by moving up and down, and the dust falls into the collection box, preventing the dust in the organic waste gas from entering the RTO combustion furnace.

[0007] Preferably, the filter plate is directly opposite to the air inlet of the filter box, so that the organic waste gas can enter the RTO combustion furnace only after being filtered by the filter plate.

[0008] Preferably, the chute is surrounded by two baffles, the inner side wall of the filter box and the inner side wall of the cleaning box.

[0009] Preferably, the filter box and the cleaning box have the same internal cross-sectional dimensions, the filter plate has the same internal cross-sectional dimensions, and the two side edges of the filter plate facing the air inlet and the air outlet are tightly fitted with two baffles respectively. The filter plate is tightly fitted with the filter box, the cleaning box and the baffles to reduce the gap on the contact surface and prevent dust from entering the other side of the filter plate through the gap.

[0010] Preferably, the filter plate is provided with multiple layers of filter screens detachably mounted therein, and oil grooves are provided on the upper and lower sides of the filter plate. When the filter screen is damaged, only the filter screen can be replaced, saving costs. The filter plate is provided with an oil groove, and lubricant is added to the oil groove to reduce friction when the filter plate moves, facilitating the sliding of the filter plate.

[0011] Preferably, a threaded rod is rotatably installed in the middle of the bottom of the fixed frame, a motor is fixedly installed at the top of the fixed frame corresponding to the threaded rod, and one end of the threaded rod away from the bottom of the fixed frame is fixedly connected to the output end of the motor.

[0012] Preferably, a threaded hole matching the threaded rod is provided in the middle of the slide plate, and the slide plate is threadedly connected to the threaded rod via the threaded hole.

[0013] Preferably, the inner side walls of the fixing frame on both sides of the threaded rod are provided with grooves matching the two ends of the slide plate, and the two ends of the slide plate are slidably installed in the grooves of the fixing frame. The threaded rod is controlled to rotate by a motor, and the slide plate is driven to move up and down when the threaded rod rotates, so that the cleaning brush moves up and down to clean the filter plate.

[0014] Preferably, a cover plate is installed on the top of the filter box, and a door plate is installed on the side of the collection box. By opening the cover plate, the staff can conveniently replace or repair the filter plate in the filter box, and through the door plate, the staff can conveniently clean the dust in the collection box.

[0015] Preferably, the bottom of the cleaning box is a hollow structure and is connected to the collecting box, so that the dust cleaned by the cleaning brush falls from the cleaning box into the collecting box.

[0016] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0017] The utility model provides a filter box and a cleaning box, and slides filter plates in the filter box and the cleaning box, so that organic waste gas can enter from the air inlet of the filter box, be filtered by the filter plate and be discharged into the RTO combustion furnace from the exhaust port, thereby preventing dust in the waste gas from entering the RTO combustion furnace and affecting the operation of the equipment. A cleaning brush is installed in the cleaning box, and a plurality of filter plates are provided to enter the filter box in sequence for filtering, thereby ensuring the continuity of the operation of the filter box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top cross-sectional schematic diagram of the utility model;

[0019] Figure 2 It is a front cross-sectional schematic diagram of the utility model;

[0020] Figure 3 It is an exploded view of the fixing frame, cleaning brush, motor and threaded rod of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the baffle of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the filter plate of the utility model.

[0023] Explanation of the accompanying drawings: 1. filter box; 2. cleaning box; 3. fixing bracket; 4. air inlet; 5. exhaust port; 6. through hole; 7. slide groove; 71. baffle; 8. filter plate; 81. multi-layer filter screen; 82. oil tank; 9. push rod; 10. cylinder; 11. fixing frame; 12. slide plate; 13. cleaning brush; 14. collecting box; 15. threaded rod; 16. motor; 17. threaded hole; 18. groove; 19. cover plate; 20. door panel. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0026] See also Figure 1-5 The utility model provides a technical solution: it includes a filter box 1, a cleaning box 2 and a fixed bracket 3, the filter box 1 and the cleaning box 2 are fixedly installed on the fixed bracket 3 in parallel, the left end of the filter box 1 is provided with an air inlet 4, the right end of the filter box 1 is provided with an exhaust port 5, the cleaning box 2 and the filter box 1 are fixedly connected on the opposite side, a plurality of through holes 6 are opened in parallel at the connection between the cleaning box 2 and the filter box 1, a plurality of chute grooves 7 are provided along the side wall of the filter box 1, one end of the plurality of chute grooves 7 passes through the corresponding through hole 6 and extends to the cleaning box 2 away from the filter box. 1, a filter plate 8 is slidably installed in the chute 7, a push rod 9 is fixedly connected to the side of the filter plate 8 facing the cleaning box 2, a cylinder 10 is fixedly installed on the side of the cleaning box 2 away from the filter box 1, one end of the push rod 9 away from the filter plate 8 passes through the side wall of the cleaning box 2 and is fixedly connected to the output end of the cylinder 10, a fixed frame 11 is fixedly installed on the left side of the chute 7 in the cleaning box 2, a slide plate 12 is slidably installed in the fixed frame 11, a cleaning brush 13 is fixedly installed on the side of the slide plate 12 facing the chute 7, and a collecting box 14 is fixedly installed at the bottom of the cleaning box 2.

[0027] The filter plate 8 faces the air inlet 4 of the filter box 1 .

[0028] The chute 7 is surrounded by two baffles 71 , the inner side wall of the filter box 1 and the inner side wall of the cleaning box 2 .

[0029] The filter box 1 and the cleaning box 2 have the same internal cross-sectional dimensions, the filter plate 8 has the same internal cross-sectional dimensions as the filter box 1 , and the edges of the filter plate 8 facing the air inlet 4 and the exhaust port 5 are tightly fitted with the two baffles 71 .

[0030] A plurality of filter screens 81 are detachably mounted in the filter plate 8 , and oil grooves 82 are provided on both upper and lower sides of the filter plate 8 .

[0031] A threaded rod 15 is rotatably installed at the middle position of the bottom of the fixed frame 11, and a motor 16 is fixedly installed at the position of the top of the fixed frame 11 corresponding to the threaded rod 15. The end of the threaded rod 15 away from the bottom of the fixed frame 11 is fixedly connected to the output end of the motor 16.

[0032] A threaded hole 17 matching the threaded rod 15 is provided in the middle of the slide plate 12 , and the slide plate 12 is threadedly connected to the threaded rod 15 via the threaded hole 17 .

[0033] Grooves 18 matching the two ends of the slide plate 12 are formed on the inner side walls of the fixing frame 11 on both sides of the threaded rod 15 . The two ends of the slide plate 12 are slidably mounted in the grooves 18 of the fixing frame 11 .

[0034] A cover plate 19 is installed on the top of the filter box 1 , and a door plate 20 is installed on the side of the collection box 14 .

[0035] The bottom of the cleaning box 2 is a hollow structure and is connected to the collecting box 14.

[0036] Working principle or structural principle: when filtering organic waste gas, one filter plate 8 is located in the filter box 1, and the other filter plates 8 are located in the cleaning box 2. The organic waste gas enters from the air inlet 4 of the filter box 1, and is discharged into the RTO combustion furnace from the exhaust port 5 after being filtered by the filter plate 8. When the filter plate 8 in the filter box 1 is blocked by dust, the next filter plate 8 is pushed into the filter box 1 by the corresponding cylinder 10 and the push rod 9 to replace the blocked filter plate 8, and then the blocked filter plate 8 is pulled back into the cleaning box 2 by the corresponding cylinder 10 and the push rod 9 for cleaning. When cleaning the filter plate 8, the motor 16 in the corresponding fixed frame 11 is started, and the filter plate 8 is pulled back to the cleaning box 2 by the corresponding cylinder 10 and the push rod 9. The movable threaded rod 15 rotates, and the threaded rod 15 drives the slide plate 12 to slide up and down in the groove 18 of the fixed frame 11, so that the cleaning brush 13 on the slide plate 12 cleans the filter plate 8, and the dust on the filter plate 8 falls from the cleaning box 2 to the collecting box 14. When the blocked filter plate 8 is cleaned, it remains in the cleaning box 2 and waits for the next time to be replaced with the filter plate 8 in the filter box 1. When the dust in the collecting box 4 accumulates to a certain amount, the staff can clean it by opening the door panel 20. The device effectively prevents the dust in the organic waste gas from entering the RTO combustion furnace, and avoids the dust in the waste gas from entering the RTO combustion furnace and affecting the operation of the equipment.

[0037] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0038] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0039] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An exhaust gas pretreatment device for RTO, comprising a filter box (1), a cleaning box (2) and a fixing bracket (3), characterized in that: The filter box (1) and the cleaning box (2) are fixedly mounted in parallel on a fixed bracket (3); an air inlet (4) is arranged at the left end of the filter box (1); an air outlet (5) is arranged at the right end of the filter box (1); the cleaning box (2) and the filter box (1) are fixedly connected at opposite sides; a plurality of through holes (6) are arranged in parallel at the connection between the cleaning box (2) and the filter box (1); a plurality of slide grooves (7) are arranged along the side wall of the filter box (1); one end of the plurality of slide grooves (7) passes through the corresponding through holes (6) and extends to the side wall of the cleaning box (2) away from the filter box (1); a filter plate is slidably mounted in the slide groove (7) (8), a push rod (9) is fixedly connected to the side of the filter plate (8) facing the cleaning box (2), a cylinder (10) is fixedly installed on the side of the cleaning box (2) away from the filter box (1), one end of the push rod (9) away from the filter plate (8) passes through the side wall of the cleaning box (2) and is fixedly connected to the output end of the cylinder (10), a fixed frame (11) is fixedly installed on the left side of the slide groove (7) in the cleaning box (2), a slide plate (12) is slidably installed in the fixed frame (11), a cleaning brush (13) is fixedly installed on the side of the slide plate (12) facing the slide groove (7), and a collecting box (14) is fixedly installed at the bottom of the cleaning box (2).

2. The RTO waste gas pretreatment device according to claim 1, characterized in that: The filter plate (8) faces the air inlet (4) of the filter box (1).

3. The RTO waste gas pretreatment device according to claim 1, characterized in that: The chute (7) is surrounded by two baffles (71), the inner side wall of the filter box (1) and the inner side wall of the cleaning box (2).

4. The RTO waste gas pretreatment device according to claim 3, characterized in that: The filter box (1) and the cleaning box (2) have the same internal cross-sectional dimensions, the filter plate (8) has the same dimensions as the internal cross-sectional dimensions of the filter box (1), and the two side edges of the filter plate (8) facing the air inlet (4) and the air outlet (5) are tightly fitted with two baffles (71) respectively.

5. The RTO waste gas pretreatment device according to claim 1, characterized in that: The filter plate (8) has multiple layers of filter screens (81) detachably mounted therein, and the upper and lower sides of the filter plate (8) are both provided with oil grooves (82).

6. The RTO waste gas pretreatment device according to claim 1, characterized in that: A threaded rod (15) is rotatably mounted at the middle position of the bottom of the fixed frame (11), a motor (16) is fixedly mounted at a position corresponding to the threaded rod (15) at the top of the fixed frame (11), and one end of the threaded rod (15) away from the bottom of the fixed frame (11) is fixedly connected to an output end of the motor (16).

7. The RTO waste gas pretreatment device according to claim 6, characterized in that: A threaded hole (17) matching the threaded rod (15) is provided in the middle of the slide plate (12), and the slide plate (12) is threadedly connected to the threaded rod (15) via the threaded hole (17).

8. The RTO waste gas pretreatment device according to claim 7, characterized in that: The inner side walls of the fixing frame (11) on both sides of the threaded rod (15) are provided with grooves (18) matching the two ends of the slide plate (12), and the two ends of the slide plate (12) are slidably mounted in the grooves (18) of the fixing frame (11).

9. The RTO waste gas pretreatment device according to claim 1, characterized in that: A cover plate (19) is installed on the top of the filter box (1), and a door plate (20) is installed on the side of the collection box (14).

10. The RTO waste gas pretreatment device according to claim 1, characterized in that: The bottom of the cleaning box (2) is a hollow structure and is connected to the collection box (14).

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