CN218553571U - Multistage-filtering waste gas collecting device - Google Patents

Abstract

The utility model discloses a waste gas collection device for multi-stage filtration, which relates to the technical field of plastic raw material production, and comprises a waste gas treatment tank and a waste gas purification assembly. Brackets are fixedly installed on both sides of the waste gas treatment tank, and the upper layer inside the waste gas treatment tank is Divided into a clean room, the exhaust gas purification assembly used for multi-stage filtration of exhaust gas is arranged in the clean room from bottom to top. The exhaust gas purification assembly includes a panel, an indicator light, a filter cartridge, an L-shaped groove and a filter element. The panel is integrally embedded in the outer wall of the exhaust gas treatment tank. This application provides a multi-stage filtration waste gas collection device, which can effectively remove the odor and ultrafine particles in the plastic waste gas through the installation of multiple waste gas purification components, so that the discharged waste gas can meet the national environmental protection testing requirements and facilitate the installation of the filter element. In addition, the exhaust gas collection device of the present application realizes the integrated design of the multi-functional area, the structure distribution is reasonable, the space utilization rate is high, and the applicability is stronger.

Description

A multi-stage filter waste gas collection device

technical field

The utility model relates to the technical field of plastic raw material production, in particular to a waste gas collection device for multi-stage filtration.

Background technique

During the recycling and granulation of waste plastics, when the temperature exceeds 200 degrees Celsius, the plasticizer and its internal low-boiling impurities will be oxidized and decomposed, and the waste gas produced mainly includes dust, aromatics, amines, hydrogen sulfide, phenols, Aldehydes, acids, alkalis, unsaturated hydrocarbons and other odorous compounds cause odorous plastic waste gas and seriously pollute the ecological environment. Therefore, special devices are required to filter and collect plastic waste gas.

For example, the patent document whose application number is CN202120025613.6 discloses a waste gas treatment device for a PVC plastic pipe production workshop. The utility model waste gas treatment device for PVC plastic pipe production workshop can further purify the waste gas by passing the waste gas through bag dust removal, spray filtration and activated carbon adsorption, and the discharged waste gas can meet the requirements of national environmental protection testing. Complicated, simple activated carbon adsorption is not enough to remove the odor and ultra-fine particles contained in plastic waste gas. On the other hand, the structure of the waste gas collection device shown in the comparison document is complex and requires a large area for device installation. Various functions Institutional integration is low and applicability is not strong.

Therefore, in view of this, researches and improvements are made to address the shortcomings of the existing structure, and a multi-stage filtering exhaust gas collection device is proposed.

Utility model content

The purpose of this utility model is to provide a multi-stage filter exhaust gas collection device to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solution: including an exhaust gas treatment tank and an exhaust gas purification component, brackets are fixedly installed on both sides of the outside of the exhaust gas treatment tank, and the upper layer inside the exhaust gas treatment tank is divided into a clean room for multiple waste gas The exhaust gas purification assembly for stage filtration is arranged inside the clean room from bottom to top in sequence. The exhaust gas purification assembly includes a panel, an indicator light, a filter cartridge, an L-shaped groove and a filter element. The panel is integrally embedded in the outer wall of the exhaust gas treatment tank , and there are indicator lights arranged longitudinally on the right side of the panel, four sets of filter cartridges are fixed on the back of the panel, and an L-shaped groove is opened on the inner wall of the opening of the filter cartridge, and a filter element is inserted inside the filter cartridge.

Further, the exhaust gas purification assembly also includes a terminal, a stud and a handle, the head of the filter element is integrally provided with a terminal, and a stud is fixed in the middle of the circumference of the end, and the end is connected to the L through the stud. It is fixed by inserting into the shaped groove, and a turning handle protrudes from the front of the end.

Further, the filter elements are, from bottom to top, a HEPA filter made of nanofiber carbon, a composite filter made of coconut shell gold fiber, an adsorption filter made of activated carbon, and a sterilizing filter made of photocatalyst.

Further, the lower layer inside the exhaust gas treatment tank is divided into a spray chamber, and a spray pipe is placed horizontally on the top of the spray chamber, and a bowl bottom support is fixed on the bottom of the spray chamber.

Further, the two sides of the bottom support of the bowl mouth are connected with air inlets, and the bottom of the bottom support of the bowl mouth is connected with a recovery pipe, a filter cloth is provided at the entrance of the recovery pipe, and a circulating pump is provided in the middle of the recovery pipe. The top of the circulation pump communicates with the spray pipe through the return pipe.

Further, the middle layer inside the exhaust gas treatment tank is divided into an electromagnetic drying chamber, and an air suction pump is provided at the top and middle end of the exhaust gas treatment tank, and the input end of the air suction pump communicates with the inside of the exhaust gas treatment tank.

Further, the output end of the air suction pump is connected to a gas compression pump, and the bottom of the gas compression pump is connected to a collection tank.

Compared with the prior art, the beneficial effect of the utility model is: the application provides a multi-stage filter waste gas collection device, which can effectively remove the odor and ultrafine particles in the plastic waste gas through the installation of multiple waste gas purification components, so that the discharge The exhaust gas can meet the requirements of the national environmental protection testing, and at the same time, it is convenient to plug and replace the filter element. In addition, the exhaust gas collection device of the present application realizes the integrated design of the multi-functional area, the structure distribution is reasonable, the space utilization rate is high, and the applicability is stronger.

1. Through the installation of the waste gas treatment tank in this utility model, the waste gas treatment tank of this application adopts the design of a multifunctional area integrating spraying, dust removal, drying and filtration, with reasonable structure distribution and high space utilization rate;

2. Through the setting of multi-stage filtration, the HEPA filter made of nanofiber carbon can further remove ultrafine particles in addition to spraying and dust removal; the composite filter made of coconut shell gold fiber can effectively absorb the odor of plastic waste gas; The adsorption filter made of activated carbon can decompose pollutants such as formaldehyde and benzene; the sterilizing filter made of photocatalyst can achieve the effect of sterilizing, through the above four layers of filtering of plastic waste gas from bottom to top, the exhaust gas can be discharged Meet the national environmental testing requirements;

3. The utility model reminds the loss state of each filter element through the setting of the exhaust gas purification component and the status indicator light on the panel so as to replace it in time. The structure design of the end is rotated and engaged with the L-shaped groove through the post protrusion, which is convenient for users to use in the filter cartridge. The inner quick-plug filter element realizes convenient replacement.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is the schematic diagram of enlarged structure at A place in Fig. 1 of the utility model;

Fig. 3 is a schematic diagram of the combined structure of the waste gas purification assembly of the present invention;

Fig. 4 is a schematic diagram of an exploded structure of the filter element of the present invention.

In the figure: 1. Exhaust gas treatment tank; 2. Bracket; 3. Spray chamber; 4. Spray pipe; 5. Bowl bottom support; 6. Air inlet; 7. Recovery pipe; 8. Filter cloth; Circulation pump; 10, return pipe; 11, electromagnetic drying chamber; 12, clean room; 13, exhaust gas purification component; 1301, panel; 1302, indicator light; 1303, filter cartridge; 1304, L-shaped groove; 1305, filter element; 1306, terminal; 1307, column convex; 1308, turning handle; 14, air pump; 15, gas compression pump; 16, collecting tank.

Detailed ways

The implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

As shown in Figures 1 to 2, brackets 2 are fixedly installed on both sides of the exhaust gas treatment tank 1, and the inner lower layer of the exhaust gas treatment tank 1 is divided into a spray chamber 3, and a spray pipe 4 is placed horizontally on the top of the spray chamber 3. The bottom of the shower room 3 is fixed with a bowl bottom support 5, and the two sides of the bowl bottom support 5 are connected with an air inlet 6, and the bottom of the bowl bottom support 5 is connected with a recovery pipe 7, and a filter cloth 8 is arranged at the entrance of the recovery pipe 7. And the middle part of the recovery pipe 7 is provided with a circulation pump 9, and the top of the circulation pump 9 communicates with the spray pipe 4 through the return pipe 10. The plastic waste gas first passes through the spray chamber 3 located in the lower floor, and the mist sprayed from the spray pipe 4 Under the action of chemical water, the larger solid particles contained in the gas are removed, and the purity of the plastic waste gas is enhanced. The spray water gathers at the bottom of the bowl bottom bracket 5 under the action of gravity, and passes through the circulation pump 9 in the middle of the recovery pipe 7 to re- Return to the spray pipe 4 to increase the utilization rate of water resources. The middle layer inside the waste gas treatment tank 1 is divided into an electromagnetic drying chamber 11, and the top and middle end of the waste gas treatment tank 1 is provided with an air pump 14, and the input end of the air pump 14 is connected to the waste gas treatment The inside of the tank 1 is connected, the output end of the air pump 14 is connected to the gas compression pump 15, and the bottom of the gas compression pump 15 is connected to the collection tank 16, and the purified plastic waste gas is sent into the collection tank 16 through the output end of the air pump 14, and the gas The effective volume of the collection tank 16 is increased under the action of the compression pump 15, and the pressure gauge attached to the tank body monitors the pressure condition in the collection tank 16 in real time;

As shown in Figures 3 to 4, the upper layer inside the waste gas treatment tank 1 is divided into a clean room 12, and the waste gas purification components 13 for multi-stage filtration of waste gas are arranged in the clean room 12 from bottom to top, and the waste gas purification components 13 include a panel 1301, indicator light 1302, filter cartridge 1303, L-shaped groove 1304 and filter element 1305, the panel 1301 is integrally embedded in the outer wall of the exhaust gas treatment tank 1, and the right side of the panel 1301 is longitudinally arranged with the indicator light 1302, and four groups are fixed on the back of the panel 1301 Filter cartridge 1303, and the inner wall of the opening of the filter cartridge 1303 is provided with an L-shaped groove 1304. The filter cartridge 1303 is inserted with a filter element 1305. The filter element 1305 is made of nanofiber carbon material HEPA filter screen and coconut shell gold fiber material from bottom to top. The composite filter made of activated carbon, the adsorption filter made of activated carbon and the sterilization filter made of photocatalyst, the HEPA filter made of nanofiber carbon can further remove ultrafine particles in addition to spray dust removal; the composite filter made of coconut shell gold fiber can Effectively absorb the odor of plastic waste gas; the adsorption filter made of activated carbon can decompose pollutants such as formaldehyde and benzene; Filtration, so that the discharged exhaust gas can meet the national environmental protection testing requirements. The exhaust gas purification component 13 also includes a terminal 1306, a stud 1307 and a rotating handle 1308. A stud 1307 is fixed, and the end 1306 is plugged and fixed with the L-shaped groove 1304 through the stud 1307, and a turning handle 1308 protrudes from the front of the end 1306, and the status indicator 1302 on the panel 1301 reminds the wear status of each filter element 1305 For timely replacement, the end 1306 is designed to rotate and engage with the L-shaped groove 1304 through the stud 1307 , which is convenient for the user to quickly insert and remove the filter element 1305 in the filter cartridge 1303 to realize convenient replacement.

Working principle: When using this multi-stage filter waste gas collection device, the plastic waste gas is passed into the waste gas treatment tank 1 through the one-way air inlet 6, and the suction pump 14 on the top of the tank is activated simultaneously to keep the plastic waste gas moving upwards. The plastic waste gas first passes through the spray chamber 3 located on the lower floor. Under the action of the atomized water sprayed from the spray pipe 4, the larger solid particles contained in the gas are removed, and the purity of the plastic waste gas is enhanced. Under the action of gravity, the water gathers on the bowl bottom bracket 5 at the bottom, and flows back to the spray pipe 4 through the circulating pump 9 in the middle of the recovery pipe 7 to increase the utilization rate of water resources. After that, the plastic waste gas rises to the middle electromagnetic drying chamber 11 realizes drying, and enters the upper clean room 12 under the suction of the air pump 14, the HEPA filter screen made of nanofiber carbon can further remove ultrafine particles in addition to spraying and dust removal; the composite filter screen made of coconut shell gold fiber can effectively Absorb the odor of plastic waste gas; the adsorption filter made of activated carbon can decompose pollutants such as formaldehyde and benzene; the sterilizing filter made of photocatalyst material can realize the effect of sterilizing, and filter the plastic waste gas layer by layer from bottom to top through the above four , so that the discharged exhaust gas can meet the national environmental protection testing requirements. In addition, the status indicator light 1302 on the panel 1301 reminds the wear status of each filter element 1305 so as to replace it in time. The structural design is convenient for the user to quickly insert and remove the filter element 1305 in the filter cartridge 1303 to realize convenient replacement. The purified plastic waste gas is sent to the collection tank 16 through the output end of the air pump 14, and the air pressure of the collection tank 16 is increased under the action of the gas compression pump 15. Effective volume, the pressure gauge attached to the tank body monitors the pressure situation in the collection tank 16 in real time.

The embodiments of the invention have been presented for purposes of illustration and description, but are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and changes will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principle and practical application of the invention, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for particular purposes.

Claims (7)

1. A waste gas collection device for multi-stage filtration, characterized in that it comprises a waste gas treatment tank (1) and a waste gas purification assembly (13), and supports (2) are fixedly installed on both sides of the waste gas treatment tank (1), And the upper layer inside the waste gas treatment tank (1) is divided into a clean room (12), and the waste gas purification components (13) for multi-stage filtration of waste gas are arranged inside the clean room (12) sequentially from bottom to top, and the waste gas purification The assembly (13) includes a panel (1301), an indicator light (1302), a filter cartridge (1303), an L-shaped groove (1304) and a filter element (1305), and the panel (1301) is integrally embedded in the exhaust gas treatment tank (1) The outer wall, and the right side of the panel (1301) is longitudinally arranged with indicator lights (1302), four sets of filter cartridges (1303) are fixed on the back of the panel (1301), and the inner wall of the opening of the filter cartridge (1303) is provided with an L-shaped groove (1304), the filter cartridge (1303) is inserted with a filter element (1305). 2. A multi-stage filtered exhaust gas collection device according to claim 1, characterized in that the exhaust gas purification assembly (13) further includes a terminal (1306), a stud (1307) and a rotating handle (1308) , the head of the filter element (1305) is integrally provided with a terminal (1306), and the middle part of the circumference of the terminal (1306) is fixed with a stud (1307), and the end (1306) passes through the stud (1307) and the L Shaped slot (1304) is plugged and fixed, and a turning handle (1308) protrudes from the front of the end (1306). 3. The waste gas collection device of a kind of multistage filtration according to claim 1, it is characterized in that, described filter core (1305) is the HEPA filter screen of nanofiber carbon material, the coconut shell gold fiber material respectively from bottom to top. Composite filter screen, adsorption filter screen made of activated carbon and sterilizing filter screen made of photocatalyst material. 4. A multi-stage filter exhaust gas collection device according to claim 1, characterized in that the lower layer inside the exhaust gas treatment tank (1) is divided into a spray chamber (3), and the top of the spray chamber (3) A spray pipe (4) is placed horizontally, and a bowl bottom support (5) is fixed at the bottom of the spray chamber (3). 5. A multi-stage filtered exhaust gas collection device according to claim 4, characterized in that, the two sides of the bowl bottom support (5) are connected with air inlets (6), and the bowl bottom support (5) ) is connected with a recovery pipe (7) at the bottom, a filter cloth (8) is provided at the entrance of the recovery pipe (7), and a circulation pump (9) is provided in the middle of the recovery pipe (7), and the top of the circulation pump (9) It communicates with the shower pipe (4) through the return pipe (10). 6. The waste gas collection device of a kind of multi-stage filtration according to claim 1, characterized in that, the middle layer inside the waste gas treatment tank (1) is divided into an electromagnetic drying chamber (11), and the waste gas treatment tank (1) An air suction pump (14) is arranged at the middle end of the top, and the input end of the air suction pump (14) communicates with the inside of the exhaust gas treatment tank (1). 7. A multi-stage filtered exhaust gas collection device according to claim 6, characterized in that, the output end of the air pump (14) is connected to a gas compression pump (15), and the bottom of the gas compression pump (15) is connected to There is a collection tank (16).

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