Waste gas filtering device

Abstract

The utility model discloses a waste gas filtering device which comprises a filtering cylinder main body, a cover plate is arranged at the top end of the filtering cylinder main body, an air inlet is formed in the top of the cover plate, a supporting ring is fixed on the inner wall of the filtering cylinder main body, a filtering layer is arranged at the top end of the supporting ring, and a top plate is arranged in the filtering cylinder main body. The bottom end of the top plate is connected through a driving mechanism, and two groups of air outlets are formed in the side wall of the filter cartridge main body. According to the waste gas filtering device, the cover plate, the gas inlet, the gas outlet, the filtering layer, a supporting ring, a supporting cylinder, a motor, a threaded rod, a threaded sleeve, a top plate, a hole, a guide rod, a guide hole, a baffle and a heat dissipation hole are combined for use, the top plate and the filtering layer can be driven to move upwards after the motor is started, and the filtering layer is located above the filtering cylinder; the filter layer can be conveniently taken and replaced by a worker, the replacement efficiency of the filter layer is improved, certain airtight protection can be achieved through the replacement mode, and waste gas leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas filtration, and particularly relates to a waste gas filtration device. Background Art

[0002] A waste gas filter is a device used to purify industrial waste gas. During industrial production, many production processes generate waste gas, which may contain harmful chemical substances, particulate matter, odors, and other pollutants. The function of the waste gas filter is to remove these harmful substances from the waste gas through filtration and adsorption, purify the waste gas, protect the environment and human health. The structure of the waste gas filter usually consists of filter media and a filtration device. The filter media can be materials such as activated carbon, ceramics, and fiberglass, which have adsorption and filtration capabilities. When the waste gas passes through the filter, the particulate matter and chemical substances in it will be captured by the filter media, and the clean waste gas is released from the filter.

[0003] For example, a waste gas filtration device with the Chinese authorized patent publication number CN221182114U includes a waste gas filtration device body, an intake pipe, an outlet pipe, and a filter plate body. The intake pipe is fixed to the top of the waste gas filtration device body, the outlet pipe is fixed to the surface of the waste gas filtration device body, the filter plate body is arranged inside the waste gas filtration device body, a first support frame is clamped and connected to the surface of the filter plate body, and a positioning block located on the surface of the first support frame is fixed to the inner wall of the waste gas filtration device body. Through the mutual cooperation of the set positioning block, support block, export groove, sealing gasket, and first mounting plate, the waste gas filtration device body can facilitate the replacement of the filter plate body. The first support frame can be supported by the positioning block and the support block, and then the sealing gasket and the first mounting plate can improve the installation sealing performance, achieving the effect of facilitating disassembly and replacement, and preventing the inconvenience of the first support frame in cooperating with replacement and maintenance during use.

[0004] However, the above-mentioned filtering structure is connected to the inside of the housing in an insertion manner, with a large wound area of the housing during the installation process, which affects the sealing performance during installation. The waste gas is likely to leak during filtration, thus reducing the filtering effect of the device, and the insertion connection method of the filtering structure will make the disassembly and assembly work time-consuming and laborious. Summary of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present utility model provides an exhaust gas filtering device. By combining the use of a cover plate, an air inlet, an air outlet, a filtering layer, a support ring, a support cylinder, a motor, a threaded rod, a threaded sleeve, a top plate, holes, guide rods, guide holes, a baffle plate, and heat dissipation holes, after the motor is started, the top plate and the filtering layer can be driven to move upward, and the filtering layer is located above the filtering cylinder, which is convenient for the staff to take and replace the filtering layer, enhancing the replacement efficiency of the filtering layer. And this replacement method can provide a certain degree of airtightness protection to avoid the leakage of exhaust gas and other advantages, solving the problems raised in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above object, the present utility model provides the following technical solution: An exhaust gas filtering device includes a main filtering cylinder. A cover plate is installed at the top end of the main filtering cylinder. An air inlet is provided at the top of the cover plate. A support ring is fixed to the inner wall of the main filtering cylinder. A filtering layer is installed at the top end of the support ring. A top plate is arranged inside the main filtering cylinder. The bottom end of the top plate is connected through a driving mechanism. Two groups of air outlets are provided on the side wall of the main filtering cylinder.

[0009] Preferably, a number of groups of holes are formed inside the top plate, and the number of groups of holes are circumferentially distributed around the axis of the top plate.

[0010] Preferably, the driving mechanism includes a support cylinder, a motor, a threaded rod, and a threaded sleeve. The support cylinder is fixed to the bottom end of the main filtering cylinder. The motor is installed on the inner wall of the bottom end of the support cylinder and the output end is connected to the threaded rod. The outer wall of the threaded rod is threadedly connected to the threaded sleeve. The end of the threaded sleeve away from the threaded rod is fixed to the bottom end of the top plate.

[0011] Preferably, guide rods are fixed to the bottom end of the top plate, and guide holes corresponding to the guide rods are formed at the bottom end of the main filtering cylinder.

[0012] Preferably, a baffle plate is fixed to the end of the guide rod away from the top plate, and the diameter of the baffle plate is larger than the diameter of the guide rod.

[0013] Preferably, a number of groups of heat dissipation holes are formed on the outer wall of the support cylinder, and the number of groups of heat dissipation holes are equidistantly distributed on the outer wall of the support cylinder.

[0014] Preferably, a clamping block is fixed to the outer wall of the cover plate, and a clamping groove matching the clamping block is formed on the inner wall of the top end of the main filtering cylinder.

[0015] Preferably, two corresponding fixing plates are fixed to the outer side wall of the main filtering cylinder. A fixing rod is fixed to the opposite side surfaces of the two fixing plates. A movable sleeve is sleeved on the outer wall of the fixing rod. A resisting plate corresponding to the clamping block is fixed to the top end of the movable sleeve.

[0016] Preferably, a spring is wound around the outer wall of the fixed rod, with one end of the spring connected to the fixed plate and the other end connected to the movable sleeve.

[0017] (III) Advantageous Effects

[0018] Compared with the prior art, the present utility model has the following advantageous effects:

[0019] 1. By combining the use of the cover plate, air inlet, air outlet, filter layer, support ring, support cylinder, motor, threaded rod, threaded sleeve, top plate, holes, guiding rod, guiding hole, baffle, and heat dissipation holes, after the motor is turned on, it can drive the top plate and the filter layer to move upward, and make the filter layer located above the filter cylinder, which is convenient for the staff to take and replace the filter layer, enhancing the replacement efficiency of the filter layer. And this replacement method can provide a certain degree of airtight protection to prevent waste gas leakage.

[0020] 2. By combining the use of the clamping block, clamping groove, fixed plate, fixed rod, movable sleeve, abutting plate, and spring, by pulling the movable sleeve to slide along the outer wall of the fixed rod, driving the spring to stretch, at this time the abutting plate can no longer abut against the top of the clamping block, and the staff can pull the cover plate upward, so that the clamping block is disengaged from the clamping groove, which is convenient to achieve the effect of replacing the internal filter layer, and this operation is more time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 is a structural schematic diagram of the state when the cover plate of the present utility model is opened;

[0023] Figure 3 is a sectional structural schematic diagram of the present utility model;

[0024] Figure 4 is a structural schematic diagram when the top plate of the present utility model pushes the filter layer to rise;

[0025] Figure 5 is a structural schematic diagram of the movable sleeve of the present utility model;

[0026] Figure 6 is the present utility model Figure 5 the enlarged structural schematic diagram at A in

[0027] In the figure: 1. Filter cartridge body; 211. Cover plate; 212. Air inlet; 213. Air outlet; 214. Filter layer; 215. Support ring; 216. Support cylinder; 217. Motor; 218. Threaded rod; 219. Threaded sleeve; 220. Top plate; 221. Hole; 222. Guide rod; 223. Guide hole; 224. Baffle; 225. Heat dissipation hole; 311. Block; 312. Slot; 313. Fixed plate; 314. Fixed rod; 315. Movable sleeve; 316. Contact plate; 317. Spring. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment

[0030] Referring to Figures 1-6 As shown, an exhaust gas filtering device includes a filter cartridge body 1. A cover plate 211 is installed at the top of the filter cartridge body 1. An air inlet 212 is arranged at the top of the cover plate 211. A support ring 215 is fixed on the inner wall of the filter cartridge body 1. A filter layer 214 is installed at the top of the support ring 215. The filter layer 214 can be made of materials such as activated carbon and glass fiber, and has the ability of adsorption and filtration. When the exhaust gas passes through the filter layer 214, the particulate matter and chemical substances therein will be captured by the filter material. Among them, activated carbon is a general term for carbon materials prepared by pyrolysis and activation of carbon-containing raw materials such as wood, coal, and petroleum coke, which have a developed pore structure, a large specific surface area, and rich surface chemical groups, and have strong specific adsorption ability. The filtering principle of glass fiber is mainly to use this special material for filtering operations. Glass fiber has good physical and chemical properties, so it can adsorb many harmful substances and retain these substances inside the filter layer 214. A top plate 220 is arranged inside the filter cartridge body 1. The bottom end of the top plate 220 is connected through a driving mechanism. Two groups of air outlets 213 are arranged on the side wall of the filter cartridge body 1. The through mechanism can drive the top plate 220 to rise, and push the baffle 224 to extend out of the top of the filter cartridge body 1, so that the staff can easily take out the filter layer 214 to achieve the purpose of replacement. A plurality of holes 221 are opened inside the top plate 220. The plurality of holes 221 are circumferentially distributed around the axis of the top plate 220. The arrangement of the holes 221 can achieve the effect of air circulation. When the waste gas enters the filter cartridge body 1 through the air inlet 212, it is filtered by the filter layer 214 and discharged to the outside through the holes 221 and the air outlets 213.

[0031] The driving mechanism includes a support cylinder 216, a motor 217, a threaded rod 218, and a threaded sleeve 219. The support cylinder 216 is fixed to the bottom end of the filter cylinder main body 1. The motor 217 is installed on the inner wall of the bottom end of the support cylinder 216, and the output end is connected with the threaded rod 218. The outer wall of the threaded rod 218 is threadedly connected with the threaded sleeve 219. One end of the threaded sleeve 219 away from the threaded rod 218 is fixed to the bottom end of the top plate 220. By starting the motor 217 to drive the threaded rod 218 to rotate, the threaded sleeve 219 and the top plate 220 are driven to lift and lower under the action of the thread, which can achieve an automatic driving effect and enhance the replacement efficiency of the filter layer 214. A guide rod 222 is fixed to the bottom end of the top plate 220. A guide hole 223 corresponding to the guide rod 222 is opened at the bottom end of the filter cylinder main body 1. When the top plate 220 moves up and down, it will drive the guide rod 222 to move along the inside of the guide hole 223, improving the stability of the top plate 220. A baffle 224 is fixed to one end of the guide rod 222 away from the top plate 220. The diameter of the baffle 224 is larger than that of the guide rod 222. The baffle 224 is provided to ensure that the guide rod 222 will not fall off from the guide hole 223, achieving further stability.

[0032] A number of groups of heat dissipation holes 225 are opened on the outer wall of the support cylinder 216. The number of groups of heat dissipation holes 225 are distributed at equal intervals on the outer wall of the support cylinder 216. The provision of a number of groups of heat dissipation holes 225 can serve the purpose of heat dissipation and ensure that the motor 217 is not easily damaged during operation.

[0033] A clamping block 311 is fixed to the outer wall of the cover plate 211. A clamping groove 312 matching the clamping block 311 is opened on the inner wall of the top end of the filter cylinder main body 1. The clamping block 311 on the cover plate 211 is inserted into the inside of the clamping groove 312, facilitating the installation and positioning of the cover plate 211. Two corresponding fixing plates 313 are fixed to the outer side wall of the filter cylinder main body 1. A fixing rod 314 is fixed to the opposite side surfaces of the two fixing plates 313. A movable sleeve 315 is sleeved on the outer wall of the fixing rod 314. A resisting plate 316 corresponding to the clamping block 311 is fixed to the top end of the movable sleeve 315. The movable sleeve 315 can slide along the outer wall of the fixing rod 314 to drive the resisting plate 316 to move back and forth. When the resisting plate 316 moves to fit with the top of the clamping block 311, the upward movement of the clamping block 311 can be restricted, achieving the effect of installing the cover plate 211. A spring 317 is wound around the outer wall of the fixing rod 314. One end of the spring 317 is connected to the fixing plate 313, and the other end is connected to the movable sleeve 315. The spring 317 can achieve a good elastic effect. In the initial state, the spring 317 is in a compressed state. When the movable sleeve 315 and the resisting plate 316 are pulled to move away from the spring 317 side, the spring 317 will be stretched. After releasing the movable sleeve 315, under the elasticity of the spring 317, the resisting plate 316 can be driven to be located at the top of the clamping block 311 again, achieving the purpose of stably limiting the cover plate 211.

[0034] Working principle: When filtration is required during use, the waste gas is introduced into the air inlet 212. At this time, the waste gas can be filtered through the filter layer 214 and discharged through the air outlet 213 to achieve the purpose of waste gas filtration.

[0035] When the filter layer 214 needs to be replaced, the contact plate 316 is moved horizontally to drive the movable sleeve 315 to slide along the outer wall of the fixed rod 314. At this time, the spring 317 will be squeezed and compressed, and the contact plate 316 will be driven to disengage from the top of the block 311. Then, the cover plate 211 is pulled upward to drive the block 311 to disengage from the inside of the card slot 312, so as to facilitate the removal of the cover plate 211.

[0036] Subsequently, the motor 217 is started to drive the threaded rod 218 to rotate. Under the action of the thread, the threaded sleeve 219 and the top plate 220 are driven to move upward. The top plate 220 pushes the filter layer 214 out. The filter layer 214 is disengaged from the top of the support ring 215. The top plate 220 drives the guide rod 222 to slide on the inner wall of the guide hole 223, enhancing the stability of the vertical movement of the top plate 220, so that the filter layer 214 extends above the filter cylinder body 1. The staff only needs to pull the filter layer 214 to remove the filter layer 214, and then replace it with a new filter layer 214.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas filtering device, comprising a filter cartridge body (1), characterized in that: A cover plate (211) is installed at the top of the filter cartridge body (1), and an air inlet (212) is arranged at the top of the cover plate (211). A support ring (215) is fixed to the inner wall of the filter cartridge body (1), and a filter layer (214) is installed at the top of the support ring (215). A top plate (220) is arranged inside the filter cartridge body (1), and the bottom end of the top plate (220) is connected via a driving mechanism. Two groups of air outlets (213) are arranged on the side wall of the filter cartridge body (1).

2. The exhaust gas filtering device according to claim 1, characterized in that: A plurality of groups of holes (221) are provided inside the top plate (220), and the plurality of groups of holes (221) are distributed in a circular pattern around the axis of the top plate (220).

3. The exhaust gas filtering device according to claim 1, characterized in that: The driving mechanism comprises a support tube (216), a motor (217), a threaded rod (218) and a threaded sleeve (219); the support tube (216) is fixed to the bottom end of the filter tube body (1); the motor (217) is installed on the inner wall of the bottom end of the support tube (216) and the output end is connected to the threaded rod (218); the outer wall of the threaded rod (218) is threadedly connected to the threaded sleeve (219); and one end of the threaded sleeve (219) away from the threaded rod (218) is fixed to the bottom end of the top plate (220).

4. An exhaust gas filtering device according to claim 3, characterized in that: A guide rod (222) is fixed at the bottom end of the top plate (220), and a guide hole (223) corresponding to the guide rod (222) is provided at the bottom end of the filter cartridge body (1).

5. The exhaust gas filtering device according to claim 4, characterized in that: A baffle plate (224) is fixed to one end of the guide rod (222) away from the top plate (220); the diameter of the baffle plate (224) is greater than the diameter of the guide rod (222).

6. An exhaust gas filtering device according to claim 5, characterized in that: The outer wall of the support tube (216) is provided with a plurality of groups of heat dissipation holes (225), and the plurality of groups of heat dissipation holes (225) are distributed at equal intervals on the outer wall of the support tube (216).

7. The exhaust gas filtering device according to claim 1, characterized in that: A clamping block (311) is fixed on the outer wall of the cover plate (211), and a clamping groove (312) matching the clamping block (311) is provided on the inner wall of the top end of the filter cartridge body (1).

8. An exhaust gas filtering device according to claim 7, characterized in that: Two corresponding groups of fixing plates (313) are fixed to the outer side wall of the filter cartridge body (1), and fixing rods (314) are fixed to the opposite side of the two groups of fixing plates (313). A movable sleeve (315) is sleeved on the outer wall of the fixing rod (314), and a contact plate (316) corresponding to the block (311) is fixed to the top of the movable sleeve (315).

9. An exhaust gas filtering device according to claim 8, characterized in that: A spring (317) is wound around the outer wall of the fixing rod (314), and one end of the spring (317) is connected to the fixing plate (313) and the other end is connected to the movable sleeve (315).

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