Activated carbon adsorption and desorption + CO all-in-one machine

Abstract

The utility model belongs to the technical field of waste gas treatment, and discloses an activated carbon adsorption and desorption + CO all-in-one machine which comprises a three-stage filter box, an upper adsorption pipeline, an upper desorption pipeline, adsorption and desorption boxes, a CO furnace, an electric control box, an adsorption and desorption box support and a base. The top ends of the adsorption and desorption boxes are in pipeline connection with an upper adsorption pipeline and an upper desorption pipeline, and the end part of the upper adsorption pipeline is fixedly connected with a third-stage filter box. Waste gas enters the upper adsorption pipeline after passing through the three-stage filter box and is adsorbed and purified by an activated carbon layer in the adsorption and desorption box from top to bottom, VOCS is intercepted and desorbed by high-temperature desorption air from bottom to top after adsorption saturation, and small-air-volume and high-concentration waste gas is formed and enters catalytic combustion and is subjected to low-temperature oxygenolysis under the action of a catalyst, so that the VOCS is completely adsorbed and desorbed. The released heat can be reused in the desorption process, and the desorption wind reversely washes pores of the activated carbon, so that the desorption is more thorough.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology and relates to an integrated activated carbon adsorption-desorption + CO machine. Background Technology

[0002] In industries such as printing, coating, and electronics manufacturing, the treatment of low-concentration volatile organic compounds (VOCs) has always been a challenge in environmental governance. Traditional single technologies (such as direct combustion or activated carbon adsorption) suffer from high energy consumption, high operating costs, or secondary pollution. The activated carbon adsorption-desorption + catalytic combustion process achieves efficient purification and resource utilization of low-concentration waste gas through the synergistic effect of "adsorption-desorption-combustion". However, traditional activated carbon adsorption-desorption + CO equipment suffers from problems such as incomplete desorption, uneven airflow distribution in the adsorption-desorption chamber, and the inability to discharge water after water spray fire suppression. Utility Model Content

[0003] The purpose of this invention is to provide an integrated activated carbon adsorption-desorption + CO machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An integrated activated carbon adsorption-desorption + CO machine includes a three-stage filter box, an upper adsorption pipe, an upper desorption pipe, an adsorption-desorption box, a CO furnace, an electrical control box, an adsorption-desorption box support, and a base. The integrated activated carbon adsorption-desorption + CO machine is fixedly installed on the upper part of the base. Multiple adsorption-desorption boxes are fixedly installed at equal intervals on the top of the adsorption-desorption box support. The top pipes of the multiple adsorption-desorption boxes are connected to the upper adsorption pipe and the upper desorption pipe. The three-stage filter box is fixedly connected to the end of the upper adsorption pipe. The CO furnace is fixedly connected to the end of the upper desorption pipe. A desorption fan is connected to the CO furnace. The bottom pipes of the multiple adsorption-desorption boxes are connected to the lower drainage pipe and the lower adsorption pipe.

[0006] In the above-mentioned activated carbon adsorption-desorption + CO integrated machine, an adsorption zero-leakage eccentric valve is fixedly installed between the lower adsorption pipe and the adsorption-desorption box, and an adsorption fan is connected to the end pipe of the lower adsorption pipe.

[0007] In the above-mentioned activated carbon adsorption-desorption + CO integrated machine, four internal water spray pipes are fixedly installed inside the multiple adsorption-desorption boxes. A 170° spiral nozzle is fixedly installed at the end of each of the four internal water spray pipes. An activated carbon layer fixedly installed in the adsorption-desorption box is provided at the bottom of the 170° spiral nozzle.

[0008] In the above-mentioned activated carbon adsorption-desorption + CO integrated machine, the internal water spray pipes inside the multiple adsorption-desorption boxes are connected to the external water spray pipes, and the middle of the external water spray pipes is fixedly installed with an inlet solenoid valve and an inlet manual ball valve.

[0009] In the above-mentioned activated carbon adsorption-desorption + CO integrated machine, the cross-section of the upper adsorption pipe decreases in a stepped manner from left to right.

[0010] In the above-mentioned activated carbon adsorption-desorption + CO integrated machine, an electrical control box is fixedly installed at the bottom of the base, and the CO furnace, adsorption fan, desorption fan and water inlet solenoid valve are all electrically connected to the electrical control box.

[0011] In the aforementioned activated carbon adsorption-desorption + CO integrated machine, a ladder platform is fixedly installed on the side of the adsorption-desorption box support.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model relates to an integrated activated carbon adsorption-desorption + CO machine. After passing through a three-stage filter box, the waste gas enters the upper adsorption pipe and is purified by adsorption from top to bottom through the activated carbon layer in the adsorption-desorption box. VOCs are trapped. After adsorption saturation, high-temperature desorption air desorbs VOCs from bottom to top, forming a small volume of high-concentration waste gas that enters the catalytic combustion. Under the action of the catalyst, it undergoes low-temperature oxidation and decomposition. The released heat can be reused in the desorption process. The desorption air flows in the opposite direction to flush the pores of the activated carbon, making the desorption more thorough.

[0014] 2. This utility model is an integrated activated carbon adsorption-desorption + CO machine. The adsorption-desorption box is equipped with four 170° spiral nozzles that have good atomization effect, are anti-clogging, and have low pressure and high efficiency. The sprayed mist is conical and has a large coverage area, which can completely cover the entire activated carbon layer without any spray dead corners. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an integrated activated carbon adsorption-desorption + CO machine according to the present invention;

[0016] Figure 2 This is a side view of the integrated activated carbon adsorption-desorption + CO machine of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure of the adsorption and desorption chamber of an integrated activated carbon adsorption and desorption + CO machine according to this utility model.

[0018] Figure 4 This utility model relates to an integrated activated carbon adsorption-desorption + CO machine. Figure 2 A magnified view of part A in the diagram.

[0019] In the diagram: 1. Three-stage filter box; 2. Upper adsorption pipe; 3. Upper desorption pipe; 4. Adsorption-desorption box; 5. CO furnace; 6. Electrical control box; 7. Adsorption fan; 8. Lower drainage pipe; 9. Adsorption-desorption box support; 10. Lower adsorption pipe; 11. Zero-leakage eccentric valve for adsorption; 12. Desorption fan; 13. External water spray pipe; 14. Ladder platform; 15. Internal water spray pipe; 16. 170° spiral nozzle; 17. Inlet solenoid valve; 18. Inlet manual ball valve; 19. Base. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution for an integrated activated carbon adsorption-desorption + CO machine:

[0022] according to Figure 1-4 As shown, an integrated activated carbon adsorption-desorption + CO machine includes a three-stage filter box 1, an upper adsorption pipe 2, an upper desorption pipe 3, an adsorption-desorption box 4, a CO furnace 5, an electrical control box 6, an adsorption-desorption box support 9, and a base 19. The integrated activated carbon adsorption-desorption + CO machine is fixedly installed on the upper part of the base 19. Multiple adsorption-desorption boxes 4 are fixedly installed at equal intervals on the top of the adsorption-desorption box support 9. The top pipes of the multiple adsorption-desorption boxes 4 are connected to the upper adsorption pipe 2 and the upper desorption pipe 3. The three-stage filter box 1 is fixedly connected to the end of the upper adsorption pipe 2, and the CO furnace 5 is fixedly connected to the end of the upper desorption pipe 3. The CO furnace 5 is connected to a desorption fan 12. The bottom pipes of the multiple adsorption-desorption boxes 4 are connected to a lower drainage pipe 8 and a lower adsorption pipe 10.

[0023] Specifically, after passing through the three-stage filter box 1, the exhaust gas enters the upper adsorption pipe 2 and is purified by adsorption and desorption through the activated carbon layer in the adsorption-desorption box 4 from top to bottom. VOCs are trapped. After adsorption saturation, high-temperature desorption air desorbs VOCs from bottom to top, forming a small volume of high-concentration exhaust gas that enters the catalytic combustion. Under the action of the catalyst, it undergoes low-temperature oxidation and decomposition. The released heat can be reused in the desorption process. The desorption air flows in the opposite direction to flush the pores of the activated carbon, making the desorption more thorough.

[0024] according to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this utility model discloses an integrated activated carbon adsorption-desorption + CO machine. An adsorption zero-leakage eccentric valve 11 is fixedly installed between the lower adsorption pipe 10 and the adsorption-desorption box 4. An adsorption fan 7 is connected to the end pipe of the lower adsorption pipe 10.

[0025] Specifically, the high-temperature gas after combustion in the CO furnace returns to the adsorption-desorption box 4 via the desorption fan 12 for desorption.

[0026] The adsorption-desorption chamber 4 has four internal water spray pipes 15 fixedly installed inside. Each of the four internal water spray pipes 15 has a 170° spiral nozzle 16 fixedly installed at its end. The bottom of the 170° spiral nozzle 16 is provided with an activated carbon layer fixedly installed in the adsorption-desorption chamber 4.

[0027] Specifically, with the 170° spiral nozzle 16, the spiral nozzle has good atomization effect, anti-clogging, low pressure and high efficiency. The sprayed mist is cone-shaped and has a large coverage area, which can completely cover the entire activated carbon layer without spray dead corners.

[0028] The internal water spray pipes 15 inside the multiple adsorption-desorption boxes 4 are connected to the external water spray pipes 13. The external water spray pipes 13 are fixedly installed with an inlet solenoid valve 17 and an inlet manual ball valve 18 in the middle.

[0029] Specifically, the external water spray pipe 13 is equipped with an inlet solenoid valve 17 and an inlet manual ball valve 18, which can be manually controlled when the inlet solenoid valve 17 fails.

[0030] The cross-section of the upper adsorption pipe 2 decreases in a stepped manner from left to right.

[0031] Specifically, the cross-section of the upper adsorption pipe 2 is designed as a stepped type with variable cross-section based on calculations, so that the air volume entering each adsorption-desorption box 4 is more uniform.

[0032] An electrical control box 6 is fixedly installed on the top of the base 19. The CO furnace 5, adsorption fan 7, desorption fan 12 and water inlet solenoid valve 17 are all electrically connected to the electrical control box 6.

[0033] Specifically, the opening and closing of each device is controlled by the electrical control equipment installed inside the electrical control box 6.

[0034] A ladder platform 14 is fixedly installed on the side of the adsorption-desorption box bracket 9.

[0035] Specifically, the ladder platform 14 allows personnel to easily inspect and replace the internal equipment of the adsorption-desorption box 4.

[0036] In addition, during adsorption in the adsorption-desorption chamber 4, the inlet is at the top and the outlet is at the bottom; conversely, during desorption, the inlet is at the bottom and the outlet is at the top.

[0037] Working Principle: This utility model discloses an integrated activated carbon adsorption-desorption + CO machine. When using this integrated activated carbon adsorption-desorption + CO machine, the waste gas first passes through the three-stage filter box 1 and then enters the upper adsorption pipe 2. From the upper adsorption pipe 2, it enters the adsorption-desorption box 4. It is adsorbed and purified by the activated carbon layer inside the adsorption-desorption box 4. VOCs are intercepted. After adsorption saturation, high-temperature desorption air desorbs VOCs from bottom to top, forming a small volume of high-concentration waste gas that enters the catalytic combustion. Under the action of the catalyst, it undergoes low-temperature oxidation and decomposition. The released heat can be reused in the desorption process. The desorption air flows in the opposite direction to flush the pores of the activated carbon, making the desorption more thorough. The water generated by the spray can be drained from the lower drain pipe 8 in time to empty the water in the adsorption-desorption box 4 after spraying and fire extinguishing, avoiding corrosion of the adsorption-desorption box 4 and the pipes.

[0038] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. An integrated activated carbon adsorption-desorption + CO machine, comprising a three-stage filter box (1), an upper adsorption pipe (2), an upper desorption pipe (3), an adsorption-desorption box (4), a CO furnace (5), an electrical control box (6), an adsorption-desorption box support (9), and a base (19), characterized in that, An activated carbon adsorption-desorption + CO integrated machine is fixedly installed on the upper part of the base (19); Multiple adsorption-desorption boxes (4) are fixedly installed at equal intervals on the top of the adsorption-desorption box support (9). The top pipes of the multiple adsorption-desorption boxes (4) are connected to an upper adsorption pipe (2) and an upper desorption pipe (3). The upper adsorption pipe (2) is fixedly connected to a three-stage filter box (1). The upper desorption pipe (3) is fixedly connected to a CO furnace (5) at its end; The CO furnace (5) is connected to a desorption fan (12) via a pipeline. The bottom pipes of the multiple adsorption-desorption boxes (4) are connected to a drain pipe (8) and a lower adsorption pipe (10).

2. The activated carbon adsorption-desorption + CO integrated machine according to claim 1, characterized in that: An adsorption zero-leakage eccentric valve (11) is fixedly installed between the lower adsorption pipe (10) and the adsorption desorption box (4), and an adsorption fan (7) is connected to the end pipe of the lower adsorption pipe (10).

3. The activated carbon adsorption-desorption + CO integrated machine according to claim 2, characterized in that: The adsorption-desorption chambers (4) are equipped with four internal water spray pipes (15), and each of the four internal water spray pipes (15) is equipped with a 170° spiral nozzle (16) at its end. The bottom of the 170° spiral nozzle (16) is provided with an activated carbon layer that is fixedly installed in the adsorption-desorption chambers (4).

4. The activated carbon adsorption-desorption + CO integrated machine according to claim 3, characterized in that: The internal water spray pipes (15) inside the multiple adsorption-desorption boxes (4) are connected to the external water spray pipes (13). The external water spray pipes (13) are fixedly installed with an inlet solenoid valve (17) and an inlet manual ball valve (18) in the middle.

5. The activated carbon adsorption-desorption + CO integrated machine according to claim 1, characterized in that: The cross-section of the upper adsorption pipe (2) decreases in a stepped manner from left to right.

6. The activated carbon adsorption-desorption + CO integrated machine according to claim 4, characterized in that: An electrical control box (6) is fixedly installed on the top of the base (19). The CO furnace (5), adsorption fan (7), desorption fan (12) and water inlet solenoid valve (17) are all electrically connected to the electrical control box (6).

7. The activated carbon adsorption-desorption + CO integrated machine according to claim 1, characterized in that: A ladder platform (14) is fixedly installed on the side of the adsorption-desorption box support (9).

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