Extraction device for waste gas treatment
By designing an exhaust gas treatment device that includes an extraction pipe, a filter assembly, and a rotating assembly, the problem of fan clogging due to impurities was solved, achieving effective impurity filtration and cleaning, extending the fan's lifespan, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-07
AI Technical Summary
After prolonged use, impurities in the exhaust gas can adhere to the surface of the fan's components, leading to fan malfunctions, reduced lifespan, and increased maintenance costs.
An exhaust gas treatment device was designed, comprising an extraction pipe, a filter assembly, and a rotating assembly. The extraction pipe extracts exhaust gas, the filter assembly filters impurities, and the rotating assembly enables backflushing cleaning and automatic replacement of the filter screen to prevent clogging.
It effectively prevents filter clogging, maintains air circulation, extends the service life of the fan, and reduces maintenance costs.
Smart Images

Figure CN224086340U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of waste gas treatment technology, and in particular relates to an extraction device for waste gas treatment. Background Technology
[0002] Waste gas treatment refers to the pretreatment of waste gas generated in industrial sites and factory workshops before it is discharged to meet national waste gas emission standards. The composition, concentration, temperature, humidity and other characteristics of waste gas generated by different industries vary greatly, so different treatment technologies and methods are required.
[0003] In the process of exhaust gas treatment, a fan is needed to transport and treat the exhaust gas through an extraction pipe. By drawing the exhaust gas into the treatment equipment, the exhaust gas is purified and discharged. The exhaust gas often contains particulate impurities. After the fan has been used for a long time, the impurities in the exhaust gas will be adsorbed on the surface of the fan components, increasing the unnecessary load on the fan, causing the fan to malfunction, reducing the fan's service life, and increasing maintenance costs. Utility Model Content
[0004] In view of the problems existing in the prior art, the present invention provides an extraction device for exhaust gas treatment that can overcome or at least partially solve the above problems.
[0005] This utility model is implemented as follows: an extraction device for waste gas treatment includes an extraction pipe and a filter assembly. The extraction pipe includes two connecting pipes and a fixed cylinder. The opposite ends of the surfaces of the two connecting pipes are fixedly connected to the left and right sides of the interior of the fixed cylinder, respectively. The filter assembly includes a mounting plate, multiple filter screens, a first mounting cylinder, and a second mounting cylinder. The surface of the mounting plate is movably connected to the interior of the fixed cylinder. The multiple filter screens are all installed inside the mounting plate. The right side of the first mounting cylinder is fixedly connected to the left side of the fixed cylinder, and the left side of the second mounting cylinder is fixedly connected to the right side of the fixed cylinder.
[0006] The extraction tube is used to extract the exhaust gas;
[0007] The filter assembly is used to filter impurities in the exhaust gas.
[0008] For cleaning the filter screens, preferably, a first dustproof net is fixedly connected to the left side inside the first mounting cylinder, a second dustproof net is fixedly connected to the right side inside the second mounting cylinder, a back-blowing fan is fixedly connected inside the second mounting cylinder, a connecting component is provided inside the fixed cylinder, a transmission component is provided at the top of the fixed cylinder, and a cleaning component is provided inside the first mounting cylinder. Through the cooperation of the transmission component and the connecting component, the mounting plate is rotated. During the rotation of the mounting plate, different filter screens are connected to the two connecting pipes, and the back-blowing fan cleans the clogged filter screens.
[0009] To drive the mounting plate to rotate, preferably, the connecting assembly includes two connecting seats, two protrusions, and a connecting shaft. The tops of the two connecting seats are fixedly connected to the bottoms of the two connecting tubes. The opposite sides of the two protrusions are fixedly connected to the opposite ends of the two connecting seats. The surface of the connecting shaft is movably connected to the interior of the fixed cylinder. The surface of the connecting shaft is fixedly connected to the interior of the mounting plate. The surfaces of the two protrusions are movably connected to the left and right sides of the interior of the connecting shaft, respectively. The connecting shaft is driven to rotate through the transmission assembly, and the mounting plate is driven to rotate during the rotation of the connecting shaft.
[0010] To drive the connecting shaft to rotate, preferably, the transmission assembly includes a transmission motor, a transmission gear, and a connecting gear ring. The bottom of the transmission motor is fixedly connected to the top of the fixed cylinder, the left side of the transmission gear is fixedly connected to the right side of the output end of the transmission motor, the interior of the connecting gear ring is movably connected to the surface of the right connecting tube, the surface of the connecting gear ring meshes with the surface of the transmission gear, and the surface of the connecting gear ring meshes with the right side of the surface of the connecting shaft. The output end of the transmission motor drives the connecting gear ring to rotate through the transmission gear, and the rotation of the connecting gear ring drives the connecting shaft to rotate.
[0011] To improve the cleaning effect of the filter screen, preferably, the cleaning assembly includes a connecting rod, a cleaning brush, and a connecting frame. The left side of the surface of the connecting rod is movably connected to the interior of the first dustproof screen, and the left side of the surface of the connecting rod is movably connected to the left side of the surface of the connecting shaft via a belt. The left side of the cleaning brush is fixedly connected to the right side of the connecting rod, and the right side of the cleaning brush is movably connected to the left side of the filter screen. The surface of the connecting frame is movably connected to the left side of the interior of the fixed cylinder, and the surface of the cleaning brush is fixedly connected to the interior of the connecting frame. During the rotation of the connecting shaft, the connecting rod is driven to rotate via a belt, and during the rotation of the connecting rod, the cleaning brush is driven to rotate, thereby cleaning the surface of the filter screen.
[0012] To limit the position of the connecting gear ring, preferably, a limiting ring is fixedly connected inside the connecting gear ring, and the surface of the limiting ring is movably connected to the surface of the right connecting pipe. The limiting ring limits the position of the connecting gear ring and prevents the connecting gear ring from being misaligned.
[0013] To facilitate the removal of impurities inside the first mounting cylinder, preferably, a baffle is movably connected to the bottom of the first mounting cylinder, and a fixing plate is fixedly connected to the bottom of the baffle. The interior of the fixing plate is fixedly connected to the interior of the first mounting cylinder by bolts. By disassembling the fixing plate, the disassembled fixing plate causes the baffle to disengage from the first mounting cylinder, thereby removing impurities from the interior of the first mounting cylinder.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This utility model incorporates structural components such as an extraction pipe, a connecting pipe, a fixed cylinder, and a filter assembly. The extraction pipe extracts waste gas, the filter assembly filters impurities from the waste gas, and the rotating and connecting components work together to rotate the mounting plate. A cleaning assembly enhances the cleaning effect of the filter screen, thus preventing filter screen blockage and airflow obstruction. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present utility model;
[0017] Figure 2 This is a three-dimensional structural diagram of the interior of the fixed cylinder provided in an embodiment of the present invention;
[0018] Figure 3 This is a three-dimensional structural diagram of the filter assembly provided in an embodiment of the present invention;
[0019] Figure 4 This is a three-dimensional structural schematic diagram of the transmission component provided in an embodiment of the present utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of the interior of the first mounting cylinder provided in an embodiment of the present invention.
[0021] In the diagram: 1. Extraction tube; 101. Connecting tube; 102. Fixing cylinder; 2. Filter assembly; 201. Mounting plate; 202. Filter screen; 203. First mounting cylinder; 204. Second mounting cylinder; 3. First dustproof screen; 4. Second dustproof screen; 5. Backflow blower; 6. Connecting assembly; 601. Connecting seat; 602. Protrusion; 603. Connecting shaft; 7. Transmission assembly; 701. Transmission motor; 702. Transmission gear; 703. Connecting gear ring; 8. Cleaning assembly; 801. Connecting rod; 802. Cleaning brush; 803. Connecting frame; 9. Limiting ring; 10. Baffle; 11. Fixing plate. Detailed Implementation
[0022] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0023] The structure of this utility model will now be described in detail with reference to the accompanying drawings.
[0024] like Figures 1 to 5As shown in the figure, an extraction device for waste gas treatment provided by this utility model embodiment includes an extraction pipe 1 and a filter assembly 2. The extraction pipe 1 includes two connecting pipes 101 and a fixed cylinder 102. The opposite ends of the surfaces of the two connecting pipes 101 are fixedly connected to the left and right sides of the interior of the fixed cylinder 102, respectively. The filter assembly 2 includes a mounting plate 201, multiple filter screens 202, a first mounting cylinder 203, and a second mounting cylinder 204. The surface of the mounting plate 201 is movably connected to the interior of the fixed cylinder 102. The multiple filter screens 202 are all installed inside the mounting plate 201. The right side of the first mounting cylinder 203 is fixedly connected to the left side of the fixed cylinder 102, and the left side of the second mounting cylinder 204 is fixedly connected to the right side of the fixed cylinder 102. The extraction pipe 1 is used for extracting waste gas. Gas is extracted; filter assembly 2 is used to filter impurities in the exhaust gas. In order to clean the filter screen 202, a first dustproof net 3 is fixedly connected to the left side inside the first mounting cylinder 203, and a second dustproof net 4 is fixedly connected to the right side inside the second mounting cylinder 204. A back-blowing fan 5 is fixedly connected inside the second mounting cylinder 204. A connecting assembly 6 is provided inside the fixed cylinder 102, and a transmission assembly 7 is provided at the top of the fixed cylinder 102. A cleaning assembly 8 is provided inside the first mounting cylinder 203. Through the cooperation of the transmission assembly 7 and the connecting assembly 6, the mounting plate 201 is rotated. During the rotation of the mounting plate 201, different filter screens 202 are connected to the two connecting pipes 101. The back-blowing fan 5 cleans the blockage. The filter screen 202 is backflushed for cleaning. To drive the mounting plate 201 to rotate, the connecting assembly 6 includes two connecting seats 601, two protrusions 602, and a connecting shaft 603. The tops of the two connecting seats 601 are fixedly connected to the bottoms of the two connecting pipes 101. The opposite sides of the two protrusions 602 are fixedly connected to the opposite ends of the two connecting seats 601. The surface of the connecting shaft 603 is movably connected to the interior of the fixed cylinder 102. The surface of the connecting shaft 603 is fixedly connected to the interior of the mounting plate 201. The surfaces of the two protrusions 602 are movably connected to the left and right sides of the interior of the connecting shaft 603. The connecting shaft 603 is driven to rotate through the transmission assembly 7. During the rotation of the connecting shaft 603, the mounting plate 201 is rotated. The shaft 603 rotates. The transmission assembly 7 includes a transmission motor 701, a transmission gear 702, and a connecting gear ring 703. The bottom of the transmission motor 701 is fixedly connected to the top of the fixed cylinder 102. The left side of the transmission gear 702 is fixedly connected to the right side of the output end of the transmission motor 701. The interior of the connecting gear ring 703 is movably connected to the surface of the right connecting pipe 101. The surface of the connecting gear ring 703 meshes with the surface of the transmission gear 702 and the right side of the surface of the connecting shaft 603. The output end of the transmission motor 701 drives the connecting gear ring 703 to rotate via the transmission gear 702. During the rotation of the connecting gear ring 703, the connecting shaft 603 rotates. This is to improve the cleaning effect on the filter screen 202.The cleaning assembly 8 includes a connecting rod 801, a cleaning brush 802, and a connecting frame 803. The left side of the connecting rod 801 is movably connected to the interior of the first dustproof mesh 3, and the left side of the connecting rod 801 is movably connected to the left side of the connecting shaft 603 via a belt. The left side of the cleaning brush 802 is fixedly connected to the right side of the connecting rod 801, and the right side of the cleaning brush 802 is movably connected to the left side of the filter screen 202. The surface of the connecting frame 803 is movably connected to the left side of the interior of the fixed cylinder 102, and the surface of the cleaning brush 802 is fixedly connected to the interior of the connecting frame 803. During the rotation of the connecting shaft 603, the connecting rod 801 is driven to rotate via a belt, and the rotation of the connecting rod 801 drives the cleaning brush 802 to rotate. The cleaning brush 802 cleans the filter screen 202. The surface is cleaned. To limit the position of the connecting gear ring 703, a limiting ring 9 is fixedly connected inside the connecting gear ring 703. The surface of the limiting ring 9 is movably connected to the surface of the right connecting pipe 101. The limiting ring 9 limits the position of the connecting gear ring 703 to prevent misalignment. To facilitate the removal of impurities inside the first mounting cylinder 203, a baffle 10 is movably connected to the bottom inside the first mounting cylinder 203. A fixing plate 11 is fixedly connected to the bottom of the baffle 10. The interior of the fixing plate 11 is fixedly connected to the interior of the first mounting cylinder 203 by bolts. By disassembling the fixing plate 11, the disassembled fixing plate 11 causes the baffle 10 to disengage from the first mounting cylinder 203, thereby removing impurities from inside the first mounting cylinder 203.
[0025] The working principle of this utility model:
[0026] When extracting exhaust gas, the left connecting pipe 101 connects to the exhaust gas, and the right connecting rod 801 connects to the extraction fan. The exhaust gas is guided and extracted through the extraction pipe 1, and impurities in the exhaust gas are filtered through the filter screen 202. When a large amount of impurities accumulate on the surface of the filter screen 202, the drive motor 701 is started. The output end of the drive motor 701 drives the connecting gear ring 703 to rotate through the drive gear 702. During the rotation of the connecting gear ring 703, the connecting shaft 603 is driven to rotate. During the rotation of the connecting shaft 603, the mounting plate 201 is driven to rotate. During the rotation of the mounting plate 201, the connecting shaft 603 drives the mounting plate 201 to rotate. The clean filter screen 202 moves between the two connecting pipes 101 to replace the filter screen 202. The clogged filter screen 202 moves between the first mounting cylinder 203 and the second mounting cylinder 204. During the rotation of the connecting shaft 603, the connecting rod 801 is driven to rotate via the belt. During the rotation of the connecting rod 801, the cleaning brush 802 is driven to rotate. The cleaning brush 802 cleans the surface of the filter screen 202. The back-blowing fan 5 is started. The back-blowing fan 5 drives the air to the clogged filter screen 202 to back-blow and clean the filter screen 202.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.
Claims
1. An extraction device for waste gas treatment, comprising an extraction pipe (1) and a filter assembly (2), characterized in that: The extraction tube (1) includes two connecting tubes (101) and a fixed cylinder (102). The opposite ends of the surfaces of the two connecting tubes (101) are fixedly connected to the left and right sides of the interior of the fixed cylinder (102). The filter assembly (2) includes a mounting plate (201), multiple filter screens (202), a first mounting cylinder (203), and a second mounting cylinder (204). The surface of the mounting plate (201) is movably connected to the interior of the fixed cylinder (102). The multiple filter screens (202) are all installed inside the mounting plate (201). The right side of the first mounting cylinder (203) is fixedly connected to the left side of the fixed cylinder (102), and the left side of the second mounting cylinder (204) is fixedly connected to the right side of the fixed cylinder (102). The extraction tube (1) is used to extract waste gas; The filter assembly (2) is used to filter impurities in the exhaust gas.
2. The extraction device for waste gas treatment as described in claim 1, characterized in that: A first dustproof net (3) is fixedly connected to the left side inside the first mounting cylinder (203), a second dustproof net (4) is fixedly connected to the right side inside the second mounting cylinder (204), a back-blowing fan (5) is fixedly connected inside the second mounting cylinder (204), a connecting component (6) is provided inside the fixed cylinder (102), a transmission component (7) is provided at the top of the fixed cylinder (102), and a cleaning component (8) is provided inside the first mounting cylinder (203).
3. The extraction device for waste gas treatment as described in claim 2, characterized in that: The connecting assembly (6) includes two connecting seats (601), two protrusions (602), and a connecting shaft (603). The tops of the two connecting seats (601) are fixedly connected to the bottoms of the two connecting tubes (101). The opposite sides of the two protrusions (602) are fixedly connected to the opposite ends of the two connecting seats (601). The surface of the connecting shaft (603) is movably connected to the interior of the fixed cylinder (102). The surface of the connecting shaft (603) is fixedly connected to the interior of the mounting plate (201). The surfaces of the two protrusions (602) are movably connected to the left and right sides of the interior of the connecting shaft (603).
4. The extraction device for waste gas treatment as described in claim 3, characterized in that: The transmission assembly (7) includes a transmission motor (701), a transmission gear (702), and a connecting gear ring (703). The bottom of the transmission motor (701) is fixedly connected to the top of the fixed cylinder (102). The left side of the transmission gear (702) is fixedly connected to the right side of the output end of the transmission motor (701). The interior of the connecting gear ring (703) is movably connected to the surface of the right connecting pipe (101). The surface of the connecting gear ring (703) meshes with the surface of the transmission gear (702). The surface of the connecting gear ring (703) meshes with the right side of the surface of the connecting shaft (603).
5. The extraction device for waste gas treatment as described in claim 4, characterized in that: The cleaning assembly (8) includes a connecting rod (801), a cleaning brush (802), and a connecting frame (803). The left side of the surface of the connecting rod (801) is movably connected to the inside of the first dustproof net (3). The left side of the surface of the connecting rod (801) is movably connected to the left side of the surface of the connecting shaft (603) via a belt. The left side of the cleaning brush (802) is fixedly connected to the right side of the connecting rod (801). The right side of the cleaning brush (802) is movably connected to the left side of the filter screen (202). The surface of the connecting frame (803) is movably connected to the left side of the inside of the fixed cylinder (102). The surface of the cleaning brush (802) is fixedly connected to the inside of the connecting frame (803).
6. The extraction device for waste gas treatment as described in claim 4, characterized in that: The connecting toothed ring (703) is internally fixedly connected to a limiting ring (9), and the surface of the limiting ring (9) is movably connected to the surface of the right connecting pipe (101).
7. The extraction device for waste gas treatment as described in claim 1, characterized in that: A baffle (10) is movably connected to the bottom of the first mounting cylinder (203), and a fixing plate (11) is fixedly connected to the bottom of the baffle (10). The interior of the fixing plate (11) is fixedly connected to the interior of the first mounting cylinder (203) by bolts.