Waste gas purifier
By designing an easy-to-replace filter structure and combining it with spraying an alkaline neutralizing solution, the problem of low efficiency when replacing filters in existing exhaust gas purifiers has been solved, achieving highly efficient exhaust gas purification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING KEYANG ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-08
AI Technical Summary
The filters in existing exhaust gas purifiers require filtration to be stopped when they need to be replaced, which leads to a decrease in purification efficiency and makes replacement inconvenient.
A filter element structure that is easy to replace is designed. The filter element can be quickly replaced through sliding sealing connection and limiting component. Combined with spraying alkaline neutralization solution, the purification effect is improved.
It enables rapid replacement of filter elements without stopping exhaust gas filtration, improving purification efficiency and enhancing the purification effect of exhaust gas.
Smart Images

Figure CN224207664U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of waste gas treatment equipment, and specifically relates to a waste gas purifier. Background Technology
[0002] When treating industrial waste gas, waste gas purifiers are required. A search reveals a waste gas purifier with patent application number "CN201922348470.8," which incorporates multiple filters, including a photolysis purification screen and a smoke-eliminating catalytic screen, to perform multi-stage filtration of the waste gas, resulting in good filtration efficiency. However, after prolonged use, these filters require replacement and cleaning. These filters are typically located inside the device, making them difficult to remove. Furthermore, removing them usually requires stopping the filtration process, restarting the device after replacement, which is time-consuming and can negatively impact the purification efficiency. Utility Model Content
[0003] The purpose of this utility model is to provide an exhaust gas purifier that facilitates filter replacement during use, and the filtration of exhaust gas can be stopped without interrupting the replacement process, thereby improving purification efficiency.
[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:
[0005] An exhaust gas purifier, comprising
[0006] The box body has a support assembly at the bottom, an air outlet pipe at the top, an air inlet pipe at the lower left side, and a through groove at the upper front side.
[0007] The mounting block is slidably and sealingly fitted inside the through groove. A locking component is provided between the mounting block and the housing. Several sliding grooves are evenly opened on the front side of the mounting block, and a ventilation groove is opened on the top of the mounting block.
[0008] The assembly frame comprises several frames, each of which is slidably and sealingly assembled into several grooves. Each assembly frame contains a filter element. Each groove contains a limiting component connected to the assembly frame. Each limiting component includes four triangular limiting blocks. Displacement grooves are formed on the front and rear sides of the inner walls of the left and right sides of each groove. The four triangular limiting blocks are slidably assembled into the four displacement grooves. A spring is fixedly installed on the side of each triangular limiting block away from the center of the groove. One end of each spring is fixedly connected to the inner wall of the four displacement grooves. Several slots connected to the triangular limiting blocks are arranged on the left and right sides of the assembly frame.
[0009] As a preferred technical solution, stabilizing grooves are provided on the inner walls of both the left and right sides of the through groove, and stabilizing blocks that are slidably and sealingly connected to the stabilizing grooves are fixedly installed on both the left and right sides of the mounting block. A threaded through groove is provided on the left side of the box body, and a threaded groove matching the position of the threaded through groove is provided on the left side of the stabilizing block. The locking assembly includes a bolt and a sealing gasket. The sealing gasket is disposed around the bolt, and the bolt is threadedly connected to the threaded through groove and the inside of the threaded groove.
[0010] As a preferred technical solution, the support assembly includes four stabilizing columns, which are arranged in a rectangular pattern and assembled at the bottom of the box.
[0011] As a preferred technical solution, several water spray pipes are arranged in a left-right pattern in the center of the box. A connecting pipe is fixedly connected between each pair of adjacent water spray pipes. Several atomizing nozzles are arranged at the bottom of each of the water spray pipes. An assembly pipe is fixedly installed around the periphery of the leftmost water spray pipe. One end of the assembly pipe extends out of the box. A drain pipe is provided on the lower right side of the box, and the drain pipe is equipped with a valve.
[0012] The beneficial effects of this utility model are:
[0013] In use, the multi-layered filter allows for multi-stage processing of exhaust gas. Simultaneously, an alkaline neutralizing solution can be sprayed to neutralize the acid and alkali in the exhaust gas, effectively improving purification. When replacing the filter, simply align the new assembly frame with the old one and push it. During this process, a triangular limiting block provides damping, preventing excessive force from completely pushing the old assembly frame out of the groove and causing it to fall. This allows for a smooth replacement process without causing exhaust gas leakage or stopping the exhaust gas supply, thus increasing the efficiency of exhaust gas purification. Attached Figure Description
[0014] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a front view structural diagram of the present utility model;
[0017] Figure 3 This is a structural diagram of the assembly pipe, water spray pipe, and atomizing nozzle of this utility model.
[0018] Figure 4 This is a structural diagram of the mounting block and assembly frame of this utility model.
[0019] Figure 5 This is a schematic diagram of the mounting block structure of this utility model;
[0020] Figure 6 This is a partial cross-sectional structural diagram of the present invention;
[0021] Figure 7 for Figure 6 A magnified structural diagram at point A;
[0022] Figure 8 This is a structural diagram of the assembly frame and filter element of this utility model.
[0023] Reference numerals in the attached drawings: 1. Housing; 11. Support assembly; 111. Stabilizing column; 12. Air outlet pipe; 13. Air inlet pipe; 14. Through groove; 141. Stabilizing groove; 142. Stabilizing block; 143. Bolt; 144. Sealing gasket; 2. Mounting block; 21. Slide groove; 22. Ventilation groove; 3. Assembly frame; 31. Filter element; 32. Limiting assembly; 33. Triangular limiting block; 34. Displacement groove; 35. Spring; 36. Slot; 4. Water spray pipe; 41. Atomizing nozzle; 42. Assembly pipe; 43. Drain pipe. Detailed Implementation
[0024] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0025] like Figure 1-8 As shown, this utility model provides an exhaust gas purifier, comprising:
[0026] The box body 1 has a support assembly 11 at its bottom. The support assembly 11 includes four stabilizing columns 111, which are arranged in a rectangular pattern and assembled at the bottom of the box body 1. In use, the four stabilizing columns 111 can provide stable support to the box body 1.
[0027] The top of the box 1 is provided with an air outlet pipe 12, the lower left side of the box 1 is provided with an air inlet pipe 13, and the upper front side of the box 1 is provided with a through groove 14.
[0028] Mounting block 2 is slidably and sealed inside the through groove 14. A locking assembly is provided between mounting block 2 and housing 1. Specifically, stabilizing grooves 141 are provided on the inner walls of both the left and right sides of the through groove 14. Stabilizing blocks 142 that are slidably and sealed to the stabilizing grooves 141 are fixedly installed on both the left and right sides of mounting block 2. A threaded through groove is provided on the left side of housing 1. A threaded groove is provided on the left side of the stabilizing block 142 that matches the position of the threaded through groove. The locking assembly includes a bolt 143 and a sealing gasket 144. The sealing gasket 144 is located around the bolt 143. The bolt 143 is threadedly connected to the threaded through groove and inside the threaded groove.
[0029] In the initial state, several assembly frames 3 are installed inside several sliding grooves 21. Different filter elements 31, such as activated carbon filter layer, coarse filter layer, fine filter layer, smoke elimination catalytic mesh, etc., are installed inside the assembly frames 3 from bottom to top to achieve multi-stage filtration of gas. During installation, the mounting block 2 is directly aligned and inserted into the through groove 14. The mounting block 2 and the through groove 14 are connected by a sliding seal. The sliding seal connection is a commonly used connection method in the prior art, used to block the flow of fluid or gas. The specific form of the connection method will not be elaborated here. When it is necessary to replace these filter elements 31 as a whole, the mounting block 2 can be directly removed for replacement, realizing the replacement of several filter elements 31 at one time. The operation is simple and convenient. However, since the filtration effect of the filter elements 31 is different, the replacement frequency is different. Usually, replacement is specified according to needs. After the mounting block 2 is installed, the bolt 143 is rotated to connect the bolt 143 with the threaded groove of the stabilizing block 143. The sealing gasket 144 can increase the sealing of the connection between the bolt 143 and the threaded through groove, and at the same time increase the tightening effect.
[0030] The mounting block 2 has several evenly spaced grooves 21 on its front side and ventilation grooves 22 on its top.
[0031] Assembly frames 3 are provided in several units. Each assembly frame 3 is slidably and sealedly assembled inside a number of slide grooves 21. Each assembly frame 3 has a filter element 31 fixedly installed inside it. Each slide groove 21 has a limiting component 32 connected to the assembly frame 3. The limiting component 32 includes four triangular limiting blocks 33. The front and rear parts of the inner walls on both sides of the slide groove 21 are provided with displacement grooves 34. The four triangular limiting blocks 33 are slidably assembled inside the four displacement grooves 34. A spring 35 is fixedly installed on the side of each of the four triangular limiting blocks 33 away from the center of the slide groove 21. One end of each of the four springs 35 is fixedly connected to the inner wall of the four displacement grooves 34. Each side of the assembly frame 3 has a number of slots 36 connected to the triangular limiting blocks 33.
[0032] Inside the housing 1, several water spray pipes 4 are arranged in a left-right pattern in the center. Each pair of adjacent water spray pipes 4 are connected by a connecting pipe. Several atomizing nozzles 41 are arranged at the bottom of each water spray pipe 4. An assembly pipe 42 is fixedly installed around the leftmost water spray pipe 4. One end of the assembly pipe 42 extends out of the housing 1. A drain pipe 43 is provided on the lower right side of the housing 1. The drain pipe 43 is equipped with a valve.
[0033] When gas filtration is required, the assembly pipe 42 is connected to an external spraying device. When treating industrial waste gas, the external spraying device is activated. The external spraying device generates water pressure to spray the alkaline neutralization solution into the gas in a mist, effectively neutralizing the waste gas and improving the purification effect. The sprayed solution can be discharged through the drain pipe 43.
[0034] The device is used as follows:
[0035] When in use, after the mounting block 2 is fixedly installed inside the through groove 14, the air inlet pipe 13 is connected to the external exhaust end, and the air outlet pipe 12 is connected to the external pipeline to discharge the exhaust gas to the designated location. After the mounting block 2 is installed, the filter elements 31 installed on several assembly frames 3 can achieve multi-layer filtration of industrial gas. Taking one of the limiting components 23 as an example, in the initial state, the four triangular limiting blocks 33 are pushed into the two slots 36 opened on the left and right sides of the assembly frame 3 by the action of four springs 35. The position of the assembly frame 3 is fixed. After the assembly frame 3 is installed, it seals the slide groove 21. The gas can only be filtered by the filter element 31 inside the assembly frame 3 and then discharged upwards without being discharged through the slot of the slide groove 21. There is a certain distance between the front and rear sides of the assembly frame 3 and the front and rear sides of the slide groove 21.
[0036] When the filter element 31 needs to be replaced, the operator pushes the new assembly frame 3 into the slide 21, seals the opening of the slide 21, and controls the rear side of the new assembly frame 3 to abut against the front side of the assembly frame 3 to be replaced. Then, a pushing force is applied to move the assembly frame 3 to be replaced. Since the pushing force is greater than the abutting force between the triangular limiting block 33 and the slot 36, the triangular limiting block 33 can be pushed into the displacement groove 34. Because the four rectangularly distributed triangular limiting blocks 33 can limit the pushed assembly frame 3, preventing it from being pushed... Excessive power will completely remove the assembly frame 3 from the slide 21. During this process, the four triangular limit blocks 33 will repeatedly extend and retract inside the displacement groove 34 until the new assembly frame 3 completely replaces the old assembly frame 3. During this period, the old assembly frame 3 will still remain partially inside the rear side of the slide 21 to prevent it from falling off. The staff can then remove the old assembly frame 3. During the replacement, the staff does not need to stop the exhaust gas from being discharged for purification. The slide 21 can be sealed during the replacement of the assembly frame 3. No additional operation is required. The purification efficiency is high and the replacement speed is fast.
[0037] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A waste gas purifier, characterized in that: include Box (1), the bottom of the box (1) is provided with a support assembly (11), the top of the box (1) is provided with an air outlet pipe (12), the lower left side of the box (1) is provided with an air inlet pipe (13), and the upper front side of the box (1) is provided with a through groove (14). Mounting block (2), which is slidably and sealedly assembled inside the through groove (14), and a locking component is provided between the mounting block (2) and the housing (1). Several sliding grooves (21) are evenly opened on the front side of the mounting block (2), and a ventilation groove (22) is opened on the top of the mounting block (2). Assembly frames (3) are provided in several units. Each assembly frame (3) is slidably and sealedly assembled inside a number of slide grooves (21). Each assembly frame (3) is fixedly installed with a filter element (31). Each slide groove (21) is provided with a limiting component (32) connected to the assembly frame (3). The limiting component (32) includes four triangular limiting blocks (33). The front and rear parts of the inner walls on the left and right sides of the slide groove (21) are provided with displacement grooves (34). The four triangular limiting blocks (33) are slidably assembled inside the four displacement grooves (34). A spring (35) is fixedly installed on the side of the four triangular limiting blocks (33) away from the center of the slide groove (21). One end of the four springs (35) is fixedly connected to the inner wall of the four displacement grooves (34). Each assembly frame (3) has a number of slots (36) connected to the triangular limiting blocks (33) arranged on the left and right sides.
2. The exhaust gas purifier according to claim 1, characterized in that: The inner walls of the left and right sides of the through groove (14) are provided with stabilizing grooves (141). The mounting block (2) is fixedly installed with stabilizing blocks (142) that are slidably and sealingly connected to the stabilizing grooves (141) on both sides. The left side of the box body (1) is provided with a threaded through groove. The left side of the stabilizing block (142) is provided with a threaded groove that matches the position of the threaded through groove. The locking assembly includes a bolt (143) and a sealing gasket (144). The sealing gasket (144) is located around the bolt (143). The bolt (143) is threadedly connected to the threaded through groove and the inside of the threaded groove.
3. The exhaust gas purifier according to claim 1, characterized in that: The support assembly (11) includes four stabilizing columns (111), which are arranged in a rectangular pattern and assembled at the bottom of the box (1).
4. The exhaust gas purifier according to claim 1, characterized in that: The box (1) has several water spray pipes (4) arranged in a left-right pattern in the center. Each pair of adjacent water spray pipes (4) is connected by a connecting pipe. Several atomizing nozzles (41) are arranged at the bottom of each water spray pipe (4). An assembly pipe (42) is fixedly installed around the leftmost water spray pipe (4). One end of the assembly pipe (42) extends out of the box (1). A drain pipe (43) is provided on the lower right side of the box (1). The drain pipe (43) is equipped with a valve.
Citation Information
Patent Citations
Waste gas purification filter
CN212091635U