Waste gas purification device for expanded perlite processing

Abstract

The utility model discloses a waste gas purification device for expanded perlite processing, which comprises a gas inlet pipe, a fan arranged in the gas inlet pipe, a filter plate mounted in the gas inlet pipe, a driving chamber fixedly arranged on the gas inlet pipe, a rotating ring rotatably arranged in the gas inlet pipe through a sealing bearing, a connecting rod arranged on one side of the rotating ring, and a gas outlet arranged on the other side of the rotating ring. The number of the connecting rods is two, cleaning brushes are fixedly arranged at one ends of the two connecting rods, the outer side of the rotating ring extends into the driving chamber and is fixedly provided with a first gear ring, a first motor is fixedly arranged outside the driving chamber, and the driving end of the first motor extends into the driving chamber and is fixedly provided with a first gear matched with the first gear ring. According to the waste gas treatment device, impurities in waste gas can be filtered, meanwhile, the filter plate can be automatically brushed and cleaned, the phenomenon that the filter plate is blocked is avoided, workers do not need to detach the filter plate for cleaning in the whole cleaning process, the labor burden of the workers is relieved, and operation is quite convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of expanded perlite processing, and more specifically, to an exhaust gas purification device for expanded perlite processing. Background Art

[0002] Perlite needs to be heated and expanded during processing, and heating and expansion requires the use of a boiler. The flue gas discharged after the combustion of coal used in the boiler contains a large amount of toxic gases, which need to be purified by an exhaust gas purification device before they can be discharged. During the use of the existing exhaust gas purification device for expanded perlite processing, a filter plate is usually set to filter impurities in the exhaust gas. However, the filter plate is prone to clogging after long-term use, and the staff needs to dismantle it for cleaning and then install it. The entire cleaning process is relatively complicated and increases the labor burden of the staff; secondly, during the use of the existing exhaust gas purification device for expanded perlite processing, when the exhaust gas is denitrated, the exhaust gas enters the denitration pipe at a fast speed and cannot fully react with the reducing agent, thereby reducing the denitration efficiency and affecting the denitration effect. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides an exhaust gas purification device for expanded perlite processing to solve the technical problem mentioned in the background technology that when the filter plate of the existing exhaust gas purification device for expanded perlite processing is blocked during use, the staff needs to disassemble it for cleaning, which increases the labor burden of the staff.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust gas purification device for expanded perlite processing, comprising an air intake pipe, a fan is arranged in the air intake pipe, a filter plate is installed in the air intake pipe, a drive chamber is fixedly arranged on the air intake pipe, the drive chamber is communicated with the air intake pipe, a rotating ring is rotatably arranged in the air intake pipe through a sealed bearing, a connecting rod is arranged on one side of the rotating ring, the number of the connecting rods is two, and a cleaning brush is fixedly arranged at one end of the two connecting rods, the outer side of the rotating ring extends into the drive chamber and is fixedly provided with a first gear ring, the outer side of the drive chamber is fixedly provided with a first motor, the driving end of the first motor extends into the drive chamber and is fixedly provided with a first gear matched with the first gear ring, an air guide component is arranged at one end of the air intake pipe, the air intake pipe is movably connected with a denitration tank through the air guide component, the air guide component comprises an air outlet pipe, the number of the air outlet pipes is multiple, and the multiple air outlet pipes are rotatably arranged in the denitration tank, an air outlet hole is arranged on the air outlet pipe, and a heat exchange pipe and a water spray pipe are arranged in the air intake pipe.

[0005] The utility model is further configured that the air guide component also includes an air guide pipe, and the air guide pipe is fixedly connected to one end of the air intake pipe to facilitate the transportation of exhaust gas into the air guide pipe.

[0006] The utility model is further configured that a connecting pipe is rotatably provided at one end of the air guide pipe through a sealed bearing, the upper end of the connecting pipe extends into the denitrification tank and is fixedly connected to multiple air outlet pipes, and the connecting pipe is rotatably connected to the denitrification tank through a sealed bearing, so as to facilitate uniform transportation of exhaust gas into the denitrification tank.

[0007] The utility model is further configured such that a second motor is fixedly provided at the lower end of the denitration tank, and a second gear is fixedly provided at the driving end of the second motor to facilitate the rotation of the second gear.

[0008] The utility model is further configured that the second gear is meshingly connected with a second gear ring, and the second gear ring is fixedly arranged outside the connecting pipe to facilitate the rotation of the connecting pipe.

[0009] The utility model is further configured as follows: a baffle plate is rotatably provided in the air intake pipe, the number of the baffle plates is two, a rotating rod is fixedly provided on one side of each baffle plate, and a third gear is fixedly provided on one end of the rotating rod passing through the air intake pipe to facilitate the rotation of the baffle plate.

[0010] The utility model is further configured such that a rack matching two third gears is slidably connected to the outside of the air intake pipe through a track structure, and an electric push rod is fixedly connected to the rack, and the electric push rod is fixedly arranged on the outside of the air intake pipe to facilitate the rotation of the third gear.

[0011] The utility model is further configured such that the heat exchange tube is arranged in a serpentine shape in the air intake pipe, and both ends extend to the outside of the air intake pipe respectively, so as to facilitate cleaning of the heat exchange tube.

[0012] Compared with the prior art, the utility model provides an exhaust gas purification device for expanded perlite processing, which has the following beneficial effects:

[0013] 1. Through the cooperation of the air intake pipe, the fan, the filter plate, the drive chamber, the rotating ring, the connecting rod, the cleaning brush, the first gear ring, the first motor and the first gear, the impurities in the exhaust gas can be filtered and the filter plate can be automatically brushed and cleaned to avoid the clogging of the filter plate. The whole cleaning process does not require the staff to disassemble it for cleaning, which reduces the labor burden of the staff and is very convenient to operate.

[0014] 2. Through the coordination of the denitrification tank, the air outlet pipe, the air outlet hole, the air guide pipe, the connecting pipe, the second motor, the second gear and the second gear ring, the exhaust gas can be evenly transported to the denitrification tank, and can be quickly mixed with the alkaline reducing agent under the rotation of the air outlet pipe, thereby improving the completeness of the reaction, improving the denitrification efficiency and ensuring the denitrification effect.

[0015] 3. Through the cooperation of the baffle plate, rotating rod, third gear, rack, electric push rod, heat exchange tube and water spray pipe, the heat in the exhaust gas can be recycled and utilized, saving energy. At the same time, the outside of the heat exchange tube can be sprayed with water for cleaning regularly, thereby ensuring the heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an exhaust gas purification device for expanded perlite processing in use;

[0017] Figure 2 It is a schematic diagram of the partial cross-sectional structure of the air inlet pipe and its connecting parts when the cleaning brush is rotating;

[0018] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the driving chamber and its connecting parts when the rotating ring is in a rotating state;

[0019] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the denitration tank and its connecting parts when the outlet pipe is in a rotating state;

[0020] Figure 5 for Figure 1 A is a partial enlarged schematic diagram of the middle part.

[0021] In the figure: 1. air inlet pipe; 2. fan; 3. filter plate; 4. drive chamber; 5. rotating ring; 6. connecting rod; 7. cleaning brush; 8. first gear ring; 9. first motor; 10. first gear; 11. denitrification tank; 12. air outlet pipe; 13. air outlet hole; 14. air guide pipe; 15. connecting pipe; 16. second motor; 17. second gear; 18. second gear ring; 19. baffle; 20. rotating rod; 21. third gear; 22. rack; 23. electric push rod; 24. heat exchange tube; 25. water spray pipe. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0024] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0025] See also Figure 1-Figure 5 , an exhaust gas purification device for expanded perlite processing, comprising an intake pipe 1, a fan 2 is arranged in the intake pipe 1, a filter plate 3 is installed in the intake pipe 1, a drive chamber 4 is fixedly arranged on the intake pipe 1, the drive chamber 4 is communicated with the intake pipe 1, a rotating ring 5 is rotatably arranged in the intake pipe 1 through a sealed bearing, a connecting rod 6 is arranged on one side of the rotating ring 5, the number of the connecting rods 6 is two, and a cleaning brush 7 is fixedly arranged at one end of the two connecting rods 6, the outer side of the rotating ring 5 extends into the drive chamber 4 and is fixedly provided with a first gear ring 8, a first motor 9 is fixedly arranged outside the drive chamber 4, and the driving end of the first motor 9 extends into the drive chamber 4 and is fixedly provided with a first gear 10 matched with the first gear ring 8, an air guide component is arranged at one end of the intake pipe 1, and the intake pipe 1 is movably connected with a denitration tank 11 through the air guide component.

[0026] In this embodiment, the fan 2 is started, so that the exhaust gas generated by the processing of perlite enters the air intake pipe 1, and then the impurities in the exhaust gas are filtered through the filter plate 3. When the filter plate 3 needs to be cleaned, the first motor 9 is started, and the first motor 9 drives the first gear 10 to rotate. Since the first gear 10 is meshed and connected with the first gear ring 8, the first gear ring 8 rotates, and the first gear ring 8 drives the rotating ring 5 to rotate around the rotating connection with the air intake pipe 1. The rotating ring 5 drives the two connecting rods 6 to rotate, and the connecting rod 6 drives the cleaning brush 7 to rotate. The cleaning brush 7 contacts the filter plate 3, so as to brush and clean the filter plate 3. A sewage pipe is provided at the lower end of the air intake pipe 1, and the impurities inside can be cleaned through the sewage pipe. The exhaust gas after filtering the impurities will enter the denitration tank 11 through the air guide assembly. The installation method of the filter plate 3 can be adopted by setting a mounting plate on the filter plate 3, and a mounting groove matching the filter plate 3 is provided in the air intake pipe 1. The filter plate 3 can be inserted into the mounting groove, and the mounting plate can be installed on the air intake pipe 1 by bolts.

[0027] See also Figure 1-Figure 5As an implementation method for denitrifying exhaust gas: the air guide component includes an air outlet pipe 12, the number of the air outlet pipes 12 is multiple, and the multiple air outlet pipes 12 are rotatably arranged in the denitrification tank 11, and the air outlet pipe 12 is provided with an air outlet hole 13. The air guide component also includes an air guide pipe 14, and the air guide pipe 14 is fixedly connected to one end of the air inlet pipe 1, and one end of the air guide pipe 14 is rotatably provided with a connecting pipe 15 through a sealed bearing. The upper end of the connecting pipe 15 extends into the denitrification tank 11 and is fixedly connected to the multiple air outlet pipes 12. The connecting pipe 15 is rotatably connected to the denitrification tank 11 through a sealed bearing, and a second motor 16 is fixedly provided at the lower end of the denitrification tank 11, and a second gear 17 is fixedly provided at the driving end of the second motor 16. The second gear 17 is meshingly connected with a second gear ring 18, and the second gear ring 18 is fixedly provided outside the connecting pipe 15.

[0028] More specifically, the exhaust gas after filtering out impurities enters the air guide pipe 14 from the air inlet pipe 1, then enters the connecting pipe 15, and finally enters the multiple exhaust pipes 12. Since each exhaust pipe 12 is provided with multiple exhaust holes 13, the exhaust gas will be discharged from the multiple exhaust holes 13, and the second motor 16 is started at the same time, the second motor 16 drives the second gear 17 to rotate, the second gear 17 drives the second gear ring 18 to rotate, the second gear ring 18 drives the connecting pipe 15 to rotate, and the connecting pipe 15 drives the multiple exhaust pipes 12 to rotate, so that the exhaust gas is discharged from the exhaust hole 13 while the exhaust pipe 12 rotates, so that the exhausted exhaust gas is more dispersed and can be quickly mixed with the alkaline reducing agent contained in the denitrification tank 11, so as to improve the reaction efficiency. An exhaust pipe is provided at the upper end of the denitrification pipe, and an exhaust fan is provided in the exhaust pipe, and the purified gas will be discharged from the exhaust pipe.

[0029] See also Figure 1-Figure 5 , as an implementation method for recovering heat from exhaust gas: a baffle plate 19 is rotatably provided in the intake pipe 1, and the number of the baffle plates 19 is two. A rotating rod 20 is fixedly provided on one side of each of the baffle plates 19, and a third gear 21 is fixedly provided at one end of the rotating rod 20 passing through the intake pipe 1. A rack 22 cooperating with the two third gears 21 is slidably connected to the outside of the intake pipe 1 through a track structure, and an electric push rod 23 is fixedly connected to the rack 22, and the electric push rod 23 is fixedly provided on the outside of the intake pipe 1. A heat exchange pipe 24 and a water spray pipe 25 are provided in the intake pipe 1. The heat exchange pipe 24 is serpentinely arranged in the intake pipe 1, and both ends extend to the outside of the intake pipe 1 respectively.

[0030] Specifically, the heat exchange tube 24 is connected to the external pipeline, and there is flowing water in the heat exchange tube 24. After the exhaust gas enters the intake pipe 1, the water in the heat exchange tube 24 will absorb the heat in the exhaust gas and recycle it. When it is necessary to clean the outside of the heat exchange tube 24, the exhaust gas purification is stopped, and the electric push rod 23 is started. The electric push rod 23 drives the two third gears 21 to rotate, and the third gear 21 drives the rotating rod 20 to rotate. The rotating rod 20 drives the baffle plate 19 to rotate, so that the baffle plate 19 blocks the inside of the intake pipe 1 on both sides of the heat exchange tube 24. The water spray pipe 25 is connected to the external water source through a pipeline. A plurality of nozzles are provided on the water spray pipe 25. Clean water enters the water spray pipe 25 and then is sprayed out from the nozzle to spray and clean the heat exchange tube 24. A collecting chamber and a drain pipe are provided at the lower end of the intake pipe 1. The cleaned waste water enters the collecting chamber and is then discharged from the drain pipe.

[0031] To sum up, when the overall equipment is in use:

[0032] When it is necessary to filter the impurities in the exhaust gas, start the fan 2, so that the exhaust gas generated by the perlite during the heating and expansion process enters the intake pipe 1, and then the impurities in the exhaust gas are filtered through the filter plate 3. When it is necessary to clean the filter plate 3, start the first motor 9, the first motor 9 drives the first gear 10 to rotate, and the first gear 10 is meshed and connected with the first gear ring 8, so that the first gear ring 8 rotates, and the first gear ring 8 drives the rotating ring 5 to rotate around the rotating connection with the intake pipe 1, and the rotating ring 5 drives the two connecting rods 6 to rotate, and the connecting rod 6 drives the cleaning brush 7 to rotate, and the cleaning brush 7 contacts the filter plate 3, so as to brush and clean the filter plate 3. A sewage pipe is provided at the lower end of the intake pipe 1, and the impurities inside can be cleaned through the sewage pipe. The exhaust gas after filtering the impurities will enter the denitration tank 11 through the air guide component. The filter plate 3 can be installed by setting a mounting plate on the filter plate 3, and a mounting groove matching the filter plate 3 is provided in the air intake pipe 1. The filter plate 3 can be inserted into the mounting groove, and the mounting plate can be installed on the air intake pipe 1 by bolts.

[0033] When it is necessary to recycle the heat in the exhaust gas, the heat exchange tube 24 is connected to the external pipeline, and there is flowing water in the heat exchange tube 24. After the exhaust gas enters the intake pipe 1, the water in the heat exchange tube 24 will absorb the heat in the exhaust gas for recycling. When it is necessary to clean the outside of the heat exchange tube 24, the exhaust gas purification is stopped, and the electric push rod 23 is started. The electric push rod 23 drives the two third gears 21 to rotate, and the third gear 21 drives the rotating rod 20 to rotate. The rotating rod 20 drives the baffle plate 19 to rotate, so that the baffle plate 19 blocks the inside of the intake pipe 1 on both sides of the heat exchange tube 24. The water spray pipe 25 is connected to the external water source through a pipeline. A plurality of nozzles are provided on the water spray pipe 25. Clean water enters the water spray pipe 25 and then is sprayed out from the nozzle to spray and clean the heat exchange tube 24. A collecting chamber and a drain pipe are provided at the lower end of the intake pipe 1. The cleaned waste water enters the collecting chamber and is then discharged from the drain pipe.

[0034] When it is necessary to denitrate the exhaust gas, the exhaust gas after heat recovery enters the air guide pipe 14 from the intake pipe 1, then enters the connecting pipe 15, and finally enters the multiple exhaust pipes 12. Since each exhaust pipe 12 is provided with multiple exhaust holes 13, the exhaust gas will be discharged from the multiple exhaust holes 13, and the second motor 16 is started at the same time. The second motor 16 drives the second gear 17 to rotate, the second gear 17 drives the second gear ring 18 to rotate, the second gear ring 18 drives the connecting pipe 15 to rotate, and the connecting pipe 15 drives the multiple exhaust pipes 12 to rotate, so that the exhaust gas is discharged from the exhaust hole 13 while the exhaust pipe 12 rotates, so that the exhausted exhaust gas is more dispersed and can be quickly mixed with the alkaline reducing agent contained in the denitrification tank 11, so as to improve the reaction efficiency. An exhaust pipe is provided at the upper end of the denitrification pipe, and an exhaust fan is provided in the exhaust pipe, and the purified gas will be discharged from the exhaust pipe.

[0035] The electrical equipment in the entire device is controlled by a controller. Since the equipment matched with the controller is a commonly used equipment, its control principle and line connection are all existing well-known and mature technologies, and its electrical connection relationship and specific circuit structure will not be repeated here.

[0036] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. An exhaust gas purification device for expanded perlite processing, comprising an air intake pipe (1), wherein a fan (2) is provided in the air intake pipe (1), wherein: A filter plate (3) is installed in the air intake pipe (1), a drive chamber (4) is fixedly provided on the air intake pipe (1), the drive chamber (4) is communicated with the air intake pipe (1), a rotating ring (5) is rotatably provided in the air intake pipe (1) via a sealing bearing, a connecting rod (6) is provided on one side of the rotating ring (5), the number of the connecting rods (6) is two, a cleaning brush (7) is fixedly provided at one end of the two connecting rods (6), the outer side of the rotating ring (5) extends into the drive chamber (4) and is fixedly provided with a first gear ring (8), and a first motor (9) is fixedly provided on the outside of the drive chamber (4). The driving end of the first motor (9) extends into the driving chamber (4) and is fixedly provided with a first gear (10) that cooperates with the first gear ring (8); an air guide assembly is provided at one end of the air intake pipe (1); the air intake pipe (1) is movably connected to a denitration tank (11) through the air guide assembly; the air guide assembly includes an air outlet pipe (12); the number of the air outlet pipes (12) is multiple, and the multiple air outlet pipes (12) are rotatably arranged in the denitration tank (11); the air outlet pipe (12) is provided with an air outlet hole (13); and a heat exchange pipe (24) and a water spray pipe (25) are provided in the air intake pipe (1).

2. The waste gas purification device for expanded perlite processing according to claim 1 is characterized in that: The air guide assembly further comprises an air guide pipe (14), wherein the air guide pipe (14) is fixedly connected to one end of the air intake pipe (1).

3. The waste gas purification device for expanded pearlite processing according to claim 2 is characterized in that: A connecting pipe (15) is rotatably provided at one end of the air guide pipe (14) via a sealed bearing. The upper end of the connecting pipe (15) extends into the denitration tank (11) and is fixedly connected to a plurality of air outlet pipes (12). The connecting pipe (15) is rotatably connected to the denitration tank (11) via a sealed bearing.

4. The waste gas purification device for expanded perlite processing according to claim 3 is characterized in that: A second motor (16) is fixedly provided at the lower end of the denitration tank (11), and a second gear (17) is fixedly provided at the driving end of the second motor (16).

5. The waste gas purification device for expanded perlite processing according to claim 4 is characterized in that: The second gear (17) is meshingly connected with a second gear ring (18), and the second gear ring (18) is fixedly arranged outside the connecting pipe (15).

6. The waste gas purification device for expanded perlite processing according to any one of claims 1 or 2, characterized in that: A baffle plate (19) is rotatably provided in the air intake pipe (1), the number of the baffle plates (19) being two, a rotating rod (20) being fixedly provided on one side of each baffle plate (19), and a third gear (21) being fixedly provided on one end of the rotating rod (20) passing through the air intake pipe (1).

7. The waste gas purification device for expanded perlite processing according to claim 6 is characterized by: The outside of the air intake pipe (1) is slidably connected to a rack (22) that cooperates with two third gears (21) via a track structure, and the rack (22) is fixedly connected to an electric push rod (23), and the electric push rod (23) is fixedly arranged outside the air intake pipe (1).

8. The waste gas purification device for expanded pearlite processing according to claim 7 is characterized in that: The heat exchange tube (24) is arranged in a serpentine shape inside the air intake pipe (1), and both ends extend to the outside of the air intake pipe (1).

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