Fixed bed molecular sieve VOCs exhaust gas treatment device

Abstract

The utility model discloses a fixed bed is with molecular sieve VOCs waste gas treatment device relates to waste gas treatment technical field. The utility model discloses a treatment box and the air permeable board still includes stirring part, sprocket chain assembly, compact board, push mechanism and drive mechanism. The utility model discloses a screw rod rotation drive slide rule moves in the inside of fixed frame to drive two groups of compact board of slide rule bottom end in the inside of treatment box and carry out the motion of facing or reverse, and the compact board of facing motion is relied on to press the zeolite molecular sieve in the inside of treatment box, makes it mutual close adhesion, carries out sufficient filtration to the waste gas passing through it, and the compact board of reverse motion expands the space where zeolite molecular sieve is located, so that stirring part can rotate in the inside of treatment box, drives zeolite molecular sieve motion, changes its position, destroys the gas passage that can appear in filter gas process, and carries out the compaction, compaction treatment of zeolite molecular sieve again, and the magnetic block plug rod of its both ends is switched respectively through the attraction and repulsion of electromagnet.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to a fixed-bed molecular sieve VOCs waste gas treatment device. Background Technology

[0002] Volatile organic compounds (VOCs) are common air pollutants in industrial production, posing significant hazards to both the environment and human health. Currently, adsorption methods for VOCs treatment are widely used in the treatment of small to medium-volume, low-concentration VOCs due to their ease of operation, low energy consumption, and wide applicability.

[0003] Fixed-bed adsorption units are common equipment in adsorption methods. They are filled with zeolite molecular sieves as adsorbent material. When waste gas passes through the adsorption bed, pollutants are selectively adsorbed, thus achieving purification. However, during long-term continuous operation, due to the continuous physical impact of the airflow and its tendency to choose the path of least resistance, stable gas channels can easily form within the adsorbent bed. Subsequent waste gas will preferentially pass through these channels, resulting in most of the adsorbent failing to participate in adsorption, a sharp decrease in effective adsorption capacity, and a reduction in filtration efficiency. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a fixed-bed molecular sieve VOCs waste gas treatment device, which solves the problem of long-term scouring and the formation of gas channels when waste gas passes through the interior of the adsorbent bed.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a fixed-bed molecular sieve VOCs waste gas treatment device, including a treatment box and a permeable plate, and further including a stirring component, a sprocket and chain assembly, a compacting plate, a pushing mechanism, and a driving mechanism. The permeable plate is fixedly installed at the front and rear openings of the treatment box. The stirring component is rotatably installed between two sets of permeable plates and located inside the treatment box. The compacting plate is slidably installed inside the treatment box. The pushing mechanism is fixedly installed on the top of the treatment box, and its moving end is connected to the compacting plate. The driving mechanism is located on the top of the treatment box, and its rotating end is correspondingly arranged with the pushing mechanism and the sprocket and chain assembly. The sprocket and chain assembly is located on the front and rear sides of the treatment box, and its rotating end is connected to the stirring component and the driving mechanism respectively.

[0006] The stirring component includes a stirring plate and a rotating shaft. The rotating shaft is rotatably mounted on the surface of the vent plate, and the stirring plate is fixedly mounted on the surface of the rotating shaft.

[0007] The compaction plate includes a pressure plate and a slide rod. The pressure plate is slidably installed inside the processing box and is in contact with the inner wall of the processing box and one side of the vent plate. The slide rod is fixedly installed on the side of the pressure plate away from the mixing component and penetrates the surface of the processing box.

[0008] The pushing mechanism includes a fixed frame, a screw, a sliding plate, and a first transmission wheel. The fixed frame is fixedly installed on the top of the processing box, the screw is rotatably installed inside the fixed frame, the sliding plate is threaded onto the surface of the screw, and the top of the sliding plate is in contact with the inner wall of the fixed frame. The bottom end of the sliding plate is connected to one end of the fastening plate, and the first transmission wheel is fixedly sleeved on the end of the screw near the drive mechanism.

[0009] The number of the compacting plates and the pushing mechanism is two sets, and the two sets of compacting plates and the pushing mechanism are arranged symmetrically.

[0010] The drive mechanism includes a motor, an inner rotating rod, a turntable, an electromagnet, and a magnetic block insert. The motor is fixedly installed on the top of the processing box, the inner rotating rod is fixedly installed at the output end of the motor, the turntable is fixedly installed at the free end of the inner rotating rod, the electromagnet is located inside the turntable, and the magnetic block insert is slidably installed inside the turntable.

[0011] The drive mechanism further includes a first outer rotating rod, a second transmission wheel, and a second outer rotating rod. The first outer rotating rod is rotatably mounted on the top of the processing box and is slidably sleeved on the surface of the inner rotating rod. The second transmission wheel is fixedly mounted on the surface of the first outer rotating rod, and the second outer rotating rod is rotatably mounted on the top of the processing box.

[0012] The sprocket and chain assembly consists of sprockets, chains, and a protective cover. The sprockets and chains are located inside the protective cover. There are multiple sets of sprockets, which are respectively connected to one end of the stirring component and the rotating end of the drive mechanism. The chains are sleeved on the surface of the sprockets and are meshed with them.

[0013] The beneficial effects of this utility model are as follows: This invention uses a screw to rotate, causing a sliding plate to move inside a fixed frame. This causes two sets of compacting plates at the bottom of the sliding plate to move in opposite directions inside the processing chamber. The opposing pressure plates press the zeolite molecular sieve inside the processing chamber, making them fit tightly together and fully filtering the waste gas passing through. The opposing pressure plates expand the space occupied by the zeolite molecular sieve, allowing the stirring component to rotate inside the processing chamber, moving the zeolite molecular sieve, changing its position, and disrupting any gas channels that may appear during the filtration process. This process re-compacts and compacts the zeolite molecular sieve. By switching the magnetic blocks at both ends of the turntable between attraction and repulsion using an electromagnet, the turntable is connected to either the first or second outer rotating rod, and disconnected from the other. This allows the power of the motor driving the inner rotating rod to rotate to be transmitted to the pushing mechanism via the first outer rotating rod and the second transmission wheel, or to the stirring component via the second outer rotating rod and the sprocket and chain assembly. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a schematic internal cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the orthographic section of this utility model; Figure 4 yes Figure 2 Enlarged diagram of section A in the middle; Figure 5 yes Figure 2 Enlarged schematic diagram of section B in the middle; Figure 6 This is a partial side sectional view of the present invention.

[0015] Reference numerals: 1. Processing box; 2. Ventilation plate; 3. Mixing component; 301. Stirring plate; 302. Rotating shaft; 4. Sprocket and chain assembly; 5. Compacting plate; 501. Pressure plate; 502. Slide rod; 6. Pushing mechanism; 601. Fixing frame; 602. Screw; 603. Slide plate; 604. First transmission wheel; 7. Drive mechanism; 701. Motor; 702. Inner rotating rod; 703. Turntable; 704. Electromagnet; 705. Magnetic block insertion rod; 706. First outer rotating rod; 707. Second transmission wheel; 708. Second outer rotating rod. Detailed Implementation

[0016] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0017] Figures 1-6 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 -Appendix Figure 6 The present invention will be further described below.

[0018] A fixed-bed molecular sieve VOCs waste gas treatment device includes a treatment box 1 and a permeable plate 2, as well as a stirring component 3, a sprocket and chain assembly 4, a compacting plate 5, a pushing mechanism 6, and a driving mechanism 7. The permeable plate 2 is fixedly installed at the front and rear openings of the treatment box 1. The stirring component 3 is rotatably installed between the two sets of permeable plates 2 and located inside the treatment box 1. The compacting plate 5 is slidably installed inside the treatment box 1. The pushing mechanism 6 is fixedly installed on the top of the treatment box 1, and its moving end is connected to the compacting plate 5. The driving mechanism 7 is located on the top of the treatment box 1, and its rotating end is correspondingly arranged with the pushing mechanism 6 and the sprocket and chain assembly 4. The sprocket and chain assembly 4 is located on the front and rear sides of the treatment box 1, and its rotating end is connected to the stirring component 3 and the driving mechanism 7 respectively. Specifically, zeolite molecular sieves are stored in the treatment box 1 and the permeable plate 2 to filter VOCs waste gas passing through them. The zeolite molecular sieves in the treatment box 1 are stirred by the agitator 3 to disrupt any possible gas channels. The power from the drive mechanism 7 is transmitted to the agitator 3 through the sprocket and chain assembly 4, causing the agitator 3 to rotate. Pressure is applied to the zeolite molecular sieves in the treatment box 1 through the compaction plate 5 to make them more compact. The power from the drive mechanism 7 is transmitted to the compaction plate 5 through the pushing mechanism 6, causing the compaction plate 5 to move horizontally.

[0019] The stirring component 3 includes a stirring plate 301 and a rotating shaft 302. The rotating shaft 302 is rotatably mounted on the surface of the vent plate 2, and the stirring plate 301 is fixedly mounted on the surface of the rotating shaft 302. Specifically, the agitator plate 301 is supported by the rotating shaft 302 to rotate stably inside the processing box 1, and the agitator plate 301 pushes the zeolite molecular sieve inside the processing box 1 to move.

[0020] The compacting plate 5 includes a pressure plate 501 and a slide rod 502. The pressure plate 501 is slidably installed inside the processing box 1 and is in contact with the inner wall of the processing box 1 and one side of the vent plate 2. The slide rod 502 is fixedly installed on the side of the pressure plate 501 away from the mixing component 3 and penetrates the surface of the processing box 1. Specifically, the pressure plate 501 moves inside the processing box 1 to compress the zeolite molecular sieve therein, and the sliding rod 502 causes the moving end of the pushing mechanism 6 to drive the pressure plate 501 to move stably inside the processing box 1.

[0021] The pushing mechanism 6 includes a fixed frame 601, a screw 602, a sliding plate 603, and a first transmission wheel 604. The fixed frame 601 is fixedly installed on the top of the processing box 1. The screw 602 is rotatably installed inside the fixed frame 601. The sliding plate 603 is threaded onto the surface of the screw 602, and the top of the sliding plate 603 is in contact with the inner wall of the fixed frame 601. The bottom end of the sliding plate 603 is connected to the sliding rod 502. The first transmission wheel 604 is fixedly sleeved on the end of the screw 602 near the drive mechanism 7. Specifically, the screw 602 rotates to drive the first transmission wheel 604 to move horizontally inside the fixed frame 601, thereby causing the slide plate 603 to move along with the fastening plate 5. The power from the drive mechanism 7 is transmitted to the screw 602 through the first transmission wheel 604, causing it to rotate.

[0022] There are two sets of compacting plates 5 and pushing mechanisms 6, and the two sets of compacting plates 5 and pushing mechanisms 6 are arranged symmetrically. Specifically, two sets of pushing mechanisms 6 drive two sets of compacting plates 5 to move synchronously inside the processing box 1, thereby stably compressing the zeolite molecular sieve and ensuring that it is between the two sets of permeable plates 2.

[0023] The drive mechanism 7 includes a motor 701, an inner rotating rod 702, a turntable 703, an electromagnet 704, and a magnetic block insert 705. The motor 701 is fixedly installed on the top of the processing box 1, the inner rotating rod 702 is fixedly installed on the output end of the motor 701, the turntable 703 is fixedly installed on the free end of the inner rotating rod 702, the electromagnet 704 is disposed inside the turntable 703, and the magnetic block insert 705 is slidably installed inside the turntable 703. There are two sets of magnetic block inserts 705, which are symmetrically arranged on both sides of the electromagnet 704. Specifically, the inner rotating rod 702 is driven to rotate by the motor 701, and the inner rotating rod 702 drives the turntable 703 to rotate. By switching the magnetic poles of the electromagnet 704, the two sets of magnetic block rods 705 at both ends are selected to attract or repel each other, and the magnetic block rods 705 are pulled to move, controlling the turntable 703 to connect with the first outer rotating rod 706 or the second outer rotating rod 708.

[0024] The drive mechanism 7 also includes a first outer rotating rod 706, a second transmission wheel 707, and a second outer rotating rod 708. The first outer rotating rod 706 is rotatably mounted on the top of the processing box 1 and is slidably sleeved on the surface of the inner rotating rod 702. The second transmission wheel 707 is fixedly mounted on the surface of the first outer rotating rod 706 and is meshed with the first transmission wheel 604. The second outer rotating rod 708 is rotatably mounted on the top of the processing box 1. Both the first outer rotating rod 706 and the second outer rotating rod 708 have insertion holes at one end near the turntable 703, and the insertion holes are correspondingly arranged with the magnetic block insertion rod 705. Specifically, the first outer rotating rod 706 is driven to rotate by the turntable 703, and the rotation is transmitted through the meshing of the second transmission wheel 707 and the first transmission wheel 604, thereby driving the screw 602 to rotate. The second outer rotating rod 708 is driven to rotate by the turntable 703, and the rotation is transmitted through the sprocket and chain assembly 4, thereby driving the agitator 3 to rotate.

[0025] The sprocket and chain assembly 4 consists of a sprocket, a chain, and a protective cover. The sprocket and chain are located inside the protective cover. There are multiple sets of sprockets, which are respectively connected to the rotating shaft 302 and the second outer rotating rod 708. The chain is sleeved on the surface of the sprocket and meshes with it. Specifically, through the meshing of the sprocket and the chain, the rotation of the second outer rotating rod 708 can be transmitted to the stirring component 3 via the sprocket and chain assembly 4, controlling its rotation inside the processing tank 1.

[0026] In summary: When using this utility model, the operator sends the VOCs waste gas to be treated into the treatment system. The waste gas enters the treatment chamber 1 through the permeable plate 2 and is selectively adsorbed and filtered by the zeolite molecular sieve inside the treatment chamber 1. Over a long period of operation, due to the thrust of the airflow and its tendency to choose the path of least resistance, small gas channels are easily created inside the zeolite molecular sieve, allowing subsequent gas to flow more easily through these channels, thus reducing the filtration effect of the equipment. This can be addressed by using the electromagnet 704 to control the flow near the first outer rotating rod 7. The magnetic block insertion rod 705 of the first set of magnetic block insertion rods 705 repels the first set of magnetic block insertion rods 705 and attracts the second set of magnetic block insertion rods 705, so that the magnetic block insertion rod 705 is inserted into the insertion hole of the first outer rotating rod 706, connecting the turntable 703 to the first outer rotating rod 706. The motor 701 is started to drive the inner rotating rod 702 to rotate, and the inner rotating rod 702 drives the turntable 703 and the first outer rotating rod 706 to rotate. Through the meshing transmission between the second transmission wheel 707 and the first transmission wheel 604, the screw 602 is driven to rotate, and the screw 602 drives the slide plate 603. Sliding inside the fixed frame 601, the slide plate 603 pulls the two sets of compacting plates 5 to move in opposite directions inside the processing box 1, expanding the space where the zeolite molecular sieve is located, disrupting the gas channels generated during the filtration process, and then changing the direction of the magnetic poles of the electromagnet 704. The electromagnet 704 repels the magnetic block insert 705 near the second outer rotating rod 708 and attracts the other set of magnetic block inserts 705, causing the magnetic block inserts 705 to insert into the insertion holes at the second outer rotating rod 708, thus connecting the turntable 703 with the second outer rotating rod 708. The two outer rotating rods 708 are connected. The starting motor 701 drives the inner rotating rod 702 to rotate. The inner rotating rod 702 drives the turntable 703 and the second outer rotating rod 708 to rotate. Through the transmission of the sprocket and chain assembly 4, the stirring plate 301 and the rotating shaft 302 are driven to rotate. The stirring plate 301 pushes and rolls the zeolite molecular sieve in the treatment box 1, further changing its position and completing the position adjustment of the zeolite molecular sieve. The stirring component 3 and the compacting plate 5 are returned to their original positions to ensure the stable filtration of waste gas by the zeolite molecular sieve.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A fixed-bed molecular sieve VOCs waste gas treatment device, comprising a treatment chamber (1) and a permeable plate (2), characterized in that, It also includes a stirring component (3), a sprocket and chain assembly (4), a compacting plate (5), a pushing mechanism (6), and a driving mechanism (7). The venting plate (2) is fixedly installed at the front and rear openings of the processing box (1). The stirring component (3) is rotatably installed between the two sets of venting plates (2) and located inside the processing box (1). The compacting plate (5) is slidably installed inside the processing box (1). The pushing mechanism (6) is fixedly installed on the top of the processing box (1), and its moving end is connected to the compacting plate (5). The driving mechanism (7) is set on the top of the processing box (1), and its rotating end is correspondingly set with the pushing mechanism (6) and the sprocket and chain assembly (4). The sprocket and chain assembly (4) is set on the front and rear sides of the processing box (1), and its rotating end is connected to the stirring component (3) and the driving mechanism (7) respectively.

2. The fixed-bed molecular sieve VOCs waste gas treatment device according to claim 1, characterized in that, The stirring component (3) includes a stirring plate (301) and a rotating shaft (302). The rotating shaft (302) is rotatably mounted on the surface of the vent plate (2), and the stirring plate (301) is fixedly mounted on the surface of the rotating shaft (302).

3. The fixed-bed molecular sieve VOCs waste gas treatment device according to claim 1, characterized in that, The compacting plate (5) includes a pressure plate (501) and a slide rod (502). The pressure plate (501) is slidably installed inside the processing box (1), and the pressure plate (501) is in contact with the inner wall of the processing box (1) and one side of the vent plate (2). The slide rod (502) is fixedly installed on the side of the pressure plate (501) away from the stirring component (3), and the slide rod (502) penetrates the surface of the processing box (1).

4. The fixed-bed molecular sieve VOCs waste gas treatment device according to claim 1, characterized in that, The pushing mechanism (6) includes a fixed frame (601), a screw (602), a sliding plate (603), and a first transmission wheel (604). The fixed frame (601) is fixedly installed on the top of the processing box (1). The screw (602) is rotatably installed inside the fixed frame (601). The sliding plate (603) is threaded onto the surface of the screw (602), and the top of the sliding plate (603) is in contact with the inner wall of the fixed frame (601). The bottom end of the sliding plate (603) is connected to one end of the fastening plate (5). The first transmission wheel (604) is fixedly sleeved on one end of the screw (602) near the drive mechanism (7).

5. The fixed-bed molecular sieve VOCs waste gas treatment device according to claim 1, characterized in that, The number of the compacting plate (5) and the pushing mechanism (6) is two sets, and the two sets of compacting plate (5) and pushing mechanism (6) are arranged symmetrically.

6. The fixed-bed molecular sieve VOCs waste gas treatment device according to claim 1, characterized in that, The drive mechanism (7) includes a motor (701), an inner rotating rod (702), a turntable (703), an electromagnet (704), and a magnetic block insert (705). The motor (701) is fixedly installed on the top of the processing box (1), the inner rotating rod (702) is fixedly installed at the output end of the motor (701), the turntable (703) is fixedly installed at the free end of the inner rotating rod (702), the electromagnet (704) is located inside the turntable (703), and the magnetic block insert (705) is slidably installed inside the turntable (703).

7. The fixed-bed molecular sieve VOCs waste gas treatment device according to claim 6, characterized in that, The drive mechanism (7) further includes a first outer rotating rod (706), a second transmission wheel (707), and a second outer rotating rod (708). The first outer rotating rod (706) is rotatably mounted on the top of the processing box (1), and the first outer rotating rod (706) is slidably sleeved on the surface of the inner rotating rod (702). The second transmission wheel (707) is fixedly mounted on the surface of the first outer rotating rod (706), and the second outer rotating rod (708) is rotatably mounted on the top of the processing box (1).

8. The fixed-bed molecular sieve VOCs waste gas treatment device according to claim 1, characterized in that, The sprocket and chain assembly (4) consists of a sprocket, a chain, and a protective cover. The sprocket and chain are located inside the protective cover. There are multiple sets of sprockets, which are respectively connected to one end of the stirring component (3) and the rotating end of the drive mechanism (7). The chain is sleeved on the surface of the sprocket and meshes with it.

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