Multi-stage adsorption device for purifying organic waste gas

Abstract

The invention discloses a multi-stage adsorption device for organic waste gas purification, and belongs to the technical field of organic waste gas purification devices, the multi-stage adsorption device comprises a box body, a purification pipe is arranged in the box body, two desorption bins are formed between the two opposite sides of the purification pipe and the inner wall of the box body, a partition plate is arranged in the purification pipe, and the two desorption bins are arranged in the partition plate; the interior of the purification pipe is divided into two adsorption bins by the partition plate; any several groups of activated carbon bracket mechanisms on the same column are selectively and magnetically adsorbed through a plurality of groups of screw rod driving mechanisms, and the corresponding activated carbon bracket mechanisms can be switched between the adsorption bin and the desorption bin, so that part of activated carbon blocks on the activated carbon bracket mechanisms are positioned in the adsorption bin; the other part of activated carbon blocks on the activated carbon support mechanism are located in the desorption bin, adsorption and desorption are synchronously carried out in the same device, an activated carbon adsorption box does not need to be additionally arranged, the input cost of equipment is reduced, and the use space of the equipment is flexible.

Description

Technical Field

[0001] The present invention belongs to the technical field of organic waste gas purification devices, and in particular relates to a multi-stage adsorption device for organic waste gas purification. Background Art

[0002] The activated carbon adsorption box is the core processing unit in the VOCs purification system. It mainly uses the porous structure and physical adsorption characteristics of activated carbon to efficiently capture volatile organic compounds in exhaust gas. Specifically, the pollutants in low-concentration VOCs exhaust gas are enriched on the surface of activated carbon. The activated carbon is regenerated and reused through thermal desorption, inert gas purging, etc., to reduce operating costs.

[0003] At present, when the activated carbon adsorption box is desorbing, the air inlet of the activated carbon adsorption box is in a closed state, which means that the adsorption and desorption of the activated carbon adsorption box cannot be carried out at the same time. At this time, it is necessary to increase the number of activated carbon adsorption boxes and switch the activated carbon adsorption boxes to operate alternately to meet the requirements of uninterrupted purification and desorption. Multiple groups of activated carbon adsorption boxes not only increase the investment in equipment costs, but also occupy a large plant space, which limits the use of the site. Moreover, when the activated carbon is desorbed, the activated carbon in the activated carbon adsorption box is in a stacked state, the heat conduction efficiency decays, resulting in low heating efficiency, and the airflow resistance increases exponentially, resulting in increased energy consumption. Summary of the Invention

[0004] The purpose of the present invention is to solve the above-mentioned problems and to propose a multi-stage adsorption device for purifying organic waste gas.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a multi-stage adsorption device for purifying organic waste gas, comprising:

[0006] A box body is provided with a purification pipe inside, two desorption chambers are formed between opposite sides of the purification pipe and the inner wall of the box body, a partition is provided in the purification pipe, and the partition divides the interior of the purification pipe into two adsorption chambers, a plurality of air inlet pipes and a plurality of air outlet pipes are provided on the box body, and the plurality of air inlet pipes and the plurality of air outlet pipes are respectively connected to the two adsorption chambers and the two desorption chambers, and a plurality of guide rods are provided in the box body;

[0007] Multiple groups of activated carbon support mechanisms, which are arranged in a rectangular array and slidably connected to the plurality of guide rods, the activated carbon support mechanisms are disposed in the desorption chamber and / or the adsorption chamber, and the ends of the activated carbon support mechanisms are clamped on the purification tube;

[0008] Multiple groups of screw drive mechanisms are installed on the box body, and the screw drive mechanisms extend into the desorption chamber and magnetically adsorb any groups of activated carbon support mechanisms located in the same column.

[0009] As a further description of the above technical solution:

[0010] The activated carbon support mechanism includes a fixed frame and two groups of fixed plates. A plurality of through holes are opened on the purification tube. The fixed frame is slidably connected in the through holes. The two groups of fixed plates are slidably connected to the fixed frame, and the opposite ends of the two groups of fixed plates are connected by thermal expansion pistons. Two sealing plates are provided on the fixed frame, and any one of the sealing plates blocks the through holes.

[0011] As a further description of the above technical solution:

[0012] The fixing plate includes a fixing frame and a plurality of fixing steel cables. The fixing frame abuts against the inner wall of the fixing frame, and the plurality of fixing steel cables are fixedly connected to the fixing frame.

[0013] As a further description of the above technical solution:

[0014] The screw drive mechanism includes a drive motor, a screw body and a slide. One end of the screw body is connected to the purification tube through a bearing seat. The slide is slidably connected to the multiple guide rods. The screw body is screwed to the slide. The drive motor is fixedly connected to the box body, and the drive motor is connected to and drives the screw body. A magnetic block is provided on the sealing plate, and a plurality of electromagnets are provided on the slide. The multiple electromagnets correspond one-to-one to the multiple magnetic blocks located in the same column. After the electromagnets are energized, they magnetically absorb the corresponding magnetic blocks.

[0015] As a further description of the above technical solution:

[0016] The adsorption chamber and the desorption chamber are both sealed chambers.

[0017] As a further description of the above technical solution:

[0018] The width of the desorption chamber is the same as the width of the adsorption chamber.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] 1. In the present invention, multiple sets of screw drive mechanisms are used to selectively magnetically adsorb any several sets of activated carbon support mechanisms on the same column, so that the corresponding activated carbon support mechanisms can be switched between the adsorption chamber and the desorption chamber, so that the activated carbon blocks on some activated carbon support mechanisms are in the adsorption chamber, and the activated carbon blocks on other activated carbon support mechanisms are in the desorption chamber, so that adsorption and desorption are carried out simultaneously in the same device, without the need to increase the activated carbon adsorption box, reducing the investment cost of the equipment and making the use space of the equipment flexible.

[0021] 2. In the present invention, when the fixed frame is in the adsorption chamber, a blocking plate blocks the through hole, so that both the adsorption chamber and the desorption chamber are in a sealed chamber state, and the temperature in the adsorption chamber is not high. Due to the gravity of the fixed plate with the activated carbon block installed on the top, the thermal expansion piston is in a compressed state, and the activated carbon blocks on the two sets of fixed plates are tightly fitted, which is convenient for the activated carbon to continuously adsorb organic gases. When the fixed frame slides from the through hole to the desorption chamber, the other blocking plate blocks the through hole, so that both the adsorption chamber and the desorption chamber are in a sealed chamber state, and the temperature in the desorption chamber is high. The thermal expansion piston is in an expanded and extended state, and the two sets of fixed plates are separated, leaving a gap between the activated carbon blocks on the two sets of fixed plates, thereby solving the problems of low heating efficiency caused by attenuation of heat conduction efficiency and increased energy consumption caused by exponential increase of airflow resistance.

[0022] 3. In the present invention, the screw body is driven to rotate by the rotation of the driving motor, and the screw connection between the screw body and the slide drives the slide to slide along the multiple guide rods. The electromagnet on the sealing plate adsorbs the magnetic block after being energized. The movement of the sealing plate can act on the fixed frame to switch between the adsorption bin and the desorption bin, so that the activated carbon blocks on part of the fixed frame are in the adsorption bin, and the activated carbon blocks on the other part of the fixed frame are in the desorption bin, realizing adsorption and desorption simultaneously in the same device, without the need to increase the activated carbon adsorption box, reducing the investment cost of the equipment, and making the use space of the equipment flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a multi-stage adsorption device for purifying organic waste gas.

[0024] Figure 2 This is an exploded view of a multi-stage adsorption device for purifying organic waste gas.

[0025] Figure 3 This is a schematic diagram of the internal structure of a multi-stage adsorption device for purifying organic waste gas.

[0026] Figure 4 for Figure 3 Usage status reference Figure 1 .

[0027] Figure 5 for Figure 3 Usage status reference Figure 2 .

[0028] Figure 6 A cross-sectional view of a multi-stage adsorption device for purifying organic waste gas Figure 1 .

[0029] Figure 7 for Figure 6 Usage status reference Figure 1 .

[0030] Figure 8 for Figure 6 Usage status reference Figure 2 .

[0031] Figure 9 A cross-sectional view of a multi-stage adsorption device for purifying organic waste gas Figure 2 .

[0032] Figure 10 for Figure 9 Usage status reference Figure 1 .

[0033] Figure 11 for Figure 9 Usage status reference Figure 2 .

[0034] Figure 12 This is an exploded view of the activated carbon support mechanism in a multi-stage adsorption device for organic waste gas purification.

[0035] Legend:

[0036] 1. Box body; 2. Purification tube; 3. Desorption chamber; 4. Partition; 5. Adsorption chamber; 6. Air inlet pipe; 7. Air outlet pipe; 8. Guide slide; 9. Activated carbon support mechanism; 91. Fixed frame; 92. Fixed plate; 921. Fixed frame; 922. Fixed steel cable; 10. Screw drive mechanism; 101. Drive motor; 102. Screw body; 103. Slide plate; 11. Through hole; 12. Thermal expansion piston; 13. Sealing plate; 14. Magnetic block; 15. Electromagnet. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] See also Figure 1-12 The present invention provides a technical solution: a multi-stage adsorption device for purifying organic waste gas, comprising:

[0039] The box body 1 is provided with a purification pipe 2 inside, and two desorption chambers 3 are formed between the opposite sides of the purification pipe 2 and the inner wall of the box body 1. A partition 4 is provided in the purification pipe 2, and the partition 4 divides the interior of the purification pipe 2 into two adsorption chambers 5. The box body 1 is provided with multiple air inlet pipes 6 and multiple air outlet pipes 7. The multiple air inlet pipes 6 and the multiple air outlet pipes 7 are connected to the two adsorption chambers 5 and the two desorption chambers 3 respectively. A plurality of guide rods 8 are provided in the box body 1;

[0040] Multiple groups of activated carbon support mechanisms 9, which are arranged in a rectangular array and slidably connected to the plurality of guide slide rods 8, the activated carbon support mechanisms 9 are arranged in the desorption chamber 3 and / or the adsorption chamber 5, and the ends of the activated carbon support mechanisms 9 are clamped on the purification tube 2;

[0041] Multiple sets of screw drive mechanisms 10 are installed on the box body 1, and the screw drive mechanisms 10 extend into the desorption chamber 3 and magnetically adsorb any sets of the activated carbon support mechanisms 9 located in the same column;

[0042] The activated carbon support mechanism 9 includes a fixing frame 91 and two groups of fixing plates 92. A plurality of through holes 11 are provided on the purification tube 2. The fixing frame 91 is slidably connected in the through holes 11. The two groups of fixing plates 92 are slidably connected to the fixing frame 91, and the opposite ends of the two groups of fixing plates 92 are connected by a thermal expansion piston 12. Two blocking plates 13 are provided on the fixing frame 91. Any one of the blocking plates 13 blocks the through holes 11. When the fixing frame 91 is in the adsorption chamber 5, a blocking plate 13 blocks the through hole 11, so that the adsorption chamber 5 and the desorption chamber 3 are both in a sealed cabin state. The temperature in the adsorption chamber 5 is not high. Under the action of gravity of the fixed plate 92 equipped with the activated carbon block, the thermal expansion piston 12 is in a compressed state. The activated carbon blocks on the two sets of fixed plates 92 fit tightly together, which facilitates the continuous adsorption of organic gas by the activated carbon. When the fixed frame 91 slides from the through hole 11 into the desorption chamber 3, the other blocking plate 13 blocks the through hole 11, so that both the adsorption chamber 5 and the desorption chamber 3 are in a sealed chamber state. The temperature in the desorption chamber 3 is high, the thermal expansion piston 12 is in an expanded and extended state, and the two sets of fixed plates 92 are separated, leaving a gap between the activated carbon blocks on the two sets of fixed plates 92. This solves the problems of low heating efficiency caused by the attenuation of heat conduction efficiency and increased energy consumption caused by the exponential increase of airflow resistance.

[0043] The fixing plate 92 includes a fixing frame 921 and a plurality of fixing steel cables 922. The fixing frame 921 abuts against the inner wall of the fixing frame 91. The plurality of fixing steel cables 922 are fixedly connected to the fixing frame 921. The plurality of fixing steel cables 922 pass through the activated carbon block to quickly fix the activated carbon block.

[0044] The screw drive mechanism 10 includes a drive motor 101, a screw body 102 and a slide 103. One end of the screw body 102 is connected to the purification tube 2 through a bearing seat. The slide 103 is slidably connected to the plurality of guide rods 8. The screw body 102 is screwed to the slide 103. The drive motor 101 is fixedly connected to the box 1, and the drive motor 101 is connected to and drives the screw body 102. A magnetic block 14 is provided on the blocking plate 13. A plurality of electromagnets 15 are provided on the slide 103. The plurality of electromagnets 15 correspond to the plurality of magnetic blocks 14 located in the same column. After the electromagnet 15 is energized The magnetic block 14 corresponding to the magnetic adsorption drives the motor 101 to rotate and drives the screw body 102 to rotate. The screw connection between the screw body 102 and the slide 103 drives the slide 103 to slide along the multiple guide rods 8. The electromagnet 15 on the blocking plate 13 adsorbs the magnetic block 14 after being energized. The movement of the blocking plate 13 can act on the fixed frame 921 to switch between the adsorption bin 5 and the desorption bin 3, so that the activated carbon blocks on part of the fixing frame 91 are in the adsorption bin 5, and the activated carbon blocks on the other part of the fixing frame 91 are in the desorption bin 3, so that adsorption and desorption are carried out simultaneously in the same device, without the need to increase the activated carbon adsorption box, reducing the investment cost of the equipment, and making the use space of the equipment flexible;

[0045] The adsorption chamber 5 and the desorption chamber 3 are both sealed chambers to ensure that the adsorption and desorption operations do not interfere with each other;

[0046] The width of the desorption chamber 3 is the same as the width of the adsorption chamber 5 .

[0047] Working principle: First, the air inlet pipe 6 and the air outlet pipe 7 corresponding to the adsorption bin 5 are connected to the organic gas inlet pipe and the purified gas exhaust pipe, that is, the organic gas enters the adsorption bin 5 and is adsorbed by the activated carbon block, and the air inlet pipe 6 and the air outlet pipe 7 corresponding to the desorption bin 3 are connected to the thermal cycle gas inlet pipe and the incinerator gas inlet pipe, that is, the hot air acts on the activated carbon block to heat up the organic gas and desorb it and enter the incinerator for combustion, so that the activated carbon block can be reused. Secondly, the driving motor 101 rotates to drive the screw body 102 to rotate, and the screw connection between the screw body 102 and the slide plate 103 drives the slide plate 103 to slide along the multiple guide rods 8. After the electromagnet 15 on the blocking plate 13 is energized, it attracts the magnetic block 14. The movement of the blocking plate 13 can act on the fixed frame 921 to switch between the adsorption bin 5 and the desorption bin 3, so that some of the activated carbon blocks on the fixed frame 91 are in the adsorption bin 5, and the activated carbon blocks on the other part of the fixed frame 91 are in the desorption bin 3. When the fixed frame 91 is in the adsorption chamber 5, a sealing plate 13 blocks the through hole 11, so that the adsorption chamber 5 and the desorption chamber 3 are both in a sealed chamber state, and the temperature in the adsorption chamber 5 is not high. Due to the gravity of the fixed plate 92 with the activated carbon block installed on it, the thermal expansion piston 12 is in a compressed state, and the activated carbon blocks on the two sets of fixed plates 92 are tightly fitted, which is convenient for the activated carbon to continuously adsorb organic gases. When the fixed frame 91 slides from the through hole 11 to the desorption chamber 3, the other sealing plate 13 blocks the through hole 11, so that the adsorption chamber 5 and the desorption chamber 3 are both in a sealed chamber state, and the temperature in the desorption chamber 3 is high. The thermal expansion piston 12 is in an expanded and extended state, and the two sets of fixed plates 92 are separated, leaving a gap between the activated carbon blocks on the two sets of fixed plates 92, which solves the problems of low heating efficiency caused by the attenuation of heat conduction efficiency and increased energy consumption caused by the exponential increase of airflow resistance.

[0048] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A multi-stage adsorption device for purifying organic waste gas, characterized by: include: A box (1) is provided with a purification pipe (2) inside, two desorption chambers (3) are formed between opposite sides of the purification pipe (2) and the inner wall of the box (1), a partition (4) is provided inside the purification pipe (2), and the partition (4) divides the interior of the purification pipe (2) into two adsorption chambers (5), a plurality of air inlet pipes (6) and a plurality of air outlet pipes (7) are provided on the box (1), and the plurality of air inlet pipes (6) and the plurality of air outlet pipes (7) are respectively connected to the two adsorption chambers (5) and the two desorption chambers (3), and a plurality of guide rods (8) are provided inside the box (1); A plurality of activated carbon support mechanisms (9) are arranged in a rectangular array and slidably connected to the plurality of guide slide rods (8), the activated carbon support mechanisms (9) being arranged in the desorption chamber (3) and / or the adsorption chamber (5), and the ends of the activated carbon support mechanisms (9) being clamped on the purification pipe (2); Multiple sets of screw drive mechanisms (10) are installed on the box (1), and the screw drive mechanisms (10) extend into the desorption chamber (3) and magnetically adsorb any sets of the activated carbon support mechanisms (9) located in the same column.

2. A multi-stage adsorption device for purifying organic waste gas according to claim 1, characterized in that: The activated carbon support mechanism (9) comprises a fixing frame (91) and two groups of fixing plates (92); a plurality of through holes (11) are provided on the purification tube (2); the fixing frame (91) is slidably connected in the through holes (11); the two groups of fixing plates (92) are slidably connected to the fixing frame (91); and the opposite ends of the two groups of fixing plates (92) are connected via a thermal expansion piston (12); two blocking plates (13) are provided on the fixing frame (91); and any one of the blocking plates (13) blocks the through holes (11).

3. The multi-stage adsorption device for purifying organic waste gas according to claim 2, characterized in that: The fixing plate (92) includes a fixing frame (921) and a plurality of fixing steel cables (922), wherein the fixing frame (921) abuts against the inner wall of the fixing frame (91), and the plurality of fixing steel cables (922) are fixedly connected to the fixing frame (921).

4. A multi-stage adsorption device for purifying organic waste gas according to claim 3, characterized in that: The screw drive mechanism (10) includes a drive motor (101), a screw body (102) and a slide plate (103). One end of the screw body (102) is connected to the purification pipe (2) through a bearing seat. The slide plate (103) is slidably connected to the plurality of guide slide rods (8). The screw body (102) is screwed to the slide plate (103). The drive motor (101) is fixedly connected to the box (1), and the drive motor (101) is connected to and drives the screw body (102). A magnetic block (14) is provided on the sealing plate (13). A plurality of electromagnets (15) are provided on the slide plate (103). The plurality of electromagnets (15) correspond to the plurality of magnetic blocks (14) located in the same column. When the electromagnets (15) are energized, they magnetically attract the corresponding magnetic blocks (14).

5. The multi-stage adsorption device for purifying organic waste gas according to claim 1, characterized in that: The adsorption chamber (5) and the desorption chamber (3) are both sealed chambers.

6. The multi-stage adsorption device for purifying organic waste gas according to claim 1, characterized in that: The width of the desorption chamber (3) is the same as the width of the adsorption chamber (5).

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