Tail gas treatment system

Abstract

The utility model discloses a tail gas treatment system, which relates to the technical field of tail gas treatment, and comprises a tail gas treatment box, a tail gas delivery pipe connected to the end part of the tail gas treatment box, a heater, an air pump and two air delivery pipes connected with the air pump, and the two air delivery pipes are spirally wound on the outer wall of the tail gas delivery pipe. The two air conveying pipes penetrate through the interior of the annular heating end of the heater, and a fixing frame is fixedly arranged in the tail gas treatment box. Hot air conveyed by the air conveying pipe is blown into the charging box from the discharging pipe to heat activated carbon, so that'benzene, benzene and benzene 'waste gas is desorbed out, the activated carbon is regenerated, external cold air in the hot air in the air conveying pipe is firstly guided into the air conveying pipe through the air pump, and due to the fact that the temperature of tail gas is high, the tail gas can be recycled. Cold air in the air conveying pipe spirally attached to the tail gas conveying pipe can be preheated and then heated through the heater, the cold air heating speed is increased, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the field of tail gas treatment, in particular to a tail gas treatment system. Background Art

[0002] Industrial waste gas (i.e. industrial tail gas) refers to the general term for various pollutant gases discharged into the air during the combustion of fuel and production processes within the enterprise's factory area. The tail gas is discharged into the atmosphere and will pollute the air, so it needs to be treated before it is discharged.

[0003] At present, some exhaust gas treatment methods use new activated carbon (mostly honeycomb carbon or fiber carbon) to absorb and concentrate low-concentration organic waste gas. When the adsorption is close to saturation, hot air is introduced to heat the activated carbon to desorb the "triphenyl" waste gas and regenerate the activated carbon for desorption.

[0004] Currently, during exhaust gas treatment, when regenerating the saturated activated carbon, the added hot air needs to heat the cold air first. Heating the cold air consumes a lot of resources, and the desorbed impurities cannot be collected, which reduces the exhaust gas treatment efficiency. Utility Model Content

[0005] The utility model aims to solve the shortcomings of large exhaust gas treatment energy consumption and low efficiency in the prior art, and proposes an exhaust gas treatment system.

[0006] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0007] The exhaust gas treatment system includes an exhaust gas treatment box, an exhaust gas delivery pipe connected to the end of the exhaust gas treatment box, a heater, an air pump and two air delivery pipes connected to the air pump, the two air delivery pipes are spirally wound around the outer wall of the exhaust gas delivery pipe, the two air delivery pipes pass through the inside of the ring-shaped heating end of the heater, a fixing frame is fixed in the exhaust gas treatment box, two charging boxes filled with activated carbon are arranged on the fixing frame, two discharge pipes are fixedly arranged on the fixing frame near the end of the exhaust gas delivery pipe, the two discharge pipes are directly opposite to the end of the charging box, the ends of the air delivery pipes are fixedly connected to the discharge pipes, and two collecting components for collecting impurities desorbed from the activated carbon are arranged in the exhaust gas treatment box.

[0008] Preferably, the collecting assembly comprises two pairs of fixed rods installed on the inner wall of the exhaust gas treatment box, a cylinder is clamped on the fixed rods, a collecting box is fixedly provided at the output end of the cylinder, two rotating plates are rotatably provided inside the collecting box, a mounting plate is fixedly provided on the fixed frame below the charging box, top blocks are fixedly provided at both ends of the lower surface of the mounting plate, and the top blocks are directly opposite to the end positions of the two rotating plates below.

[0009] Preferably, a torsion spring is provided on the circular shaft rotatably connected to the rotating plate and the collecting box.

[0010] Preferably, a rubber pad is fixedly provided on the upper surface of the collection box, and the rubber pad has the same area as the collection box.

[0011] Preferably, air passages are provided at the top and bottom of the charging box, and a connecting groove is provided at the contact portion between the fixing frame and the bottom of the charging box, and the connecting groove is communicated with the air passage of the charging box.

[0012] Preferably, one end of the two air delivery pipes is located in the exhaust gas treatment box.

[0013] Preferably, both ends and the bottom of the charging box are in contact with the inner wall of the fixing frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, hot air is transported through the air delivery pipe and blown into the charging box from the discharge pipe to heat the activated carbon, so that the "triphenyl" waste gas is desorbed and the activated carbon is regenerated. The hot air in the air delivery pipe is first introduced into the air delivery pipe by the air pump to introduce the external cold air. Due to the high temperature of the exhaust gas, the cold air in the air delivery pipe spirally attached to the exhaust gas delivery pipe will be preheated, and then heated by the heater, thereby increasing the heating speed of the cold air and reducing energy consumption;

[0016] 2. In the utility model, when the activated carbon is regenerated, the collecting box is lifted up by the cylinder, the rubber pad on the upper end of the collecting box is fitted with the fixing frame, and the rotating plate is pushed open by the top block and is inclined. After some impurities on the heated activated carbon are desorbed, they will fall onto the upper surface of the rotating plate and enter the collecting box along the rotating plate, so that the impurities are effectively collected and the hygiene in the exhaust gas treatment box is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the exhaust gas treatment box of the utility model;

[0020] Figure 3 This is a front structural diagram of the exhaust gas treatment box of the utility model;

[0021] Figure 4It is a schematic diagram of the explosion structure of the collection component of the utility model.

[0022] Serial numbers in the figure: 1. exhaust gas treatment box; 11. exhaust gas delivery pipe; 12. air pump; 13. air delivery pipe; 14. heater; 15. fixing frame; 16. charging box; 18. discharge pipe; 2. fixing rod; 21. cylinder; 22. collecting box; 23. rotating plate; 24. mounting plate; 25. top block; 3. torsion spring; 4. rubber pad. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Example: This example provides an exhaust gas treatment system, see Figure 1-4 Specifically, it includes an exhaust gas treatment box 1, an exhaust gas delivery pipe 11 connected to the end of the exhaust gas treatment box 1, a heater 14, an air pump 12 and two air delivery pipes 13 connected to the air pump 12, the two air delivery pipes 13 are spirally wound around the outer wall of the exhaust gas delivery pipe 11, and the two air delivery pipes 13 pass through the inner part of the ring-shaped heating end of the heater 14. A fixing frame 15 is fixed in the exhaust gas treatment box 1, and two charging boxes 16 filled with activated carbon are arranged on the fixing frame 15. The fixing frame 15 is fixed near the end of the exhaust gas delivery pipe 11. There are two discharge pipes 18, and the two discharge pipes 18 are directly opposite to the ends of the charging box 16. The ends of the air delivery pipe 13 are fixedly connected to the discharge pipes 18. Two collecting components for collecting impurities desorbed from the activated carbon are arranged in the exhaust gas treatment box 1. Airways are provided at the top and bottom of the charging box 16. A connecting groove is provided at the contact part between the fixing frame 15 and the bottom of the charging box 16. The connecting groove is connected to the airway of the charging box 16. One end of the two air delivery pipes 13 is located in the exhaust gas treatment box 1, and both ends and the bottom of the charging box 16 are in contact with the inner wall of the fixing frame 15.

[0025] The tail gas is sent into the tail gas treatment box 1 from the tail gas delivery pipe 11, and moves from the middle of the fixed frame 15 to the upper and lower ends through the obstruction of the fixed frame 15. Activated carbon (mostly honeycomb carbon or fiber carbon) is arranged in the loading boxes 16 at the upper and lower ends of the fixed frame 15. The organic waste gas in the tail gas is adsorbed by the activated carbon, and then the filtered tail gas leaves from the other end of the tail gas treatment box 1 and enters other equipment for treatment. When the activated carbon adsorption is close to saturation, the tail gas is stopped from being transported, and the air delivery pipe 13 delivers hot air from the exhaust pipe 18 to the loading box 16 to heat the activated carbon, desorb the "triphenyl" waste gas, and regenerate the activated carbon. The hot air in the air delivery pipe 13 is first introduced into the air delivery pipe 13 by the air pump 12 to introduce the external cold air into the air delivery pipe 13. Due to the high temperature of the tail gas, the cold air in the air delivery pipe 13 spirally attached to the tail gas delivery pipe 11 will be preheated, and then heated by the heater 14, thereby increasing the heating speed of the cold air and reducing energy consumption.

[0026] In the specific implementation process, Figure 3 and Figure 4 As shown, the collecting assembly includes two pairs of fixed rods 2 installed on the inner wall of the exhaust treatment box 1, and a cylinder 21 is clamped on the fixed rods 2. A collecting box 22 is fixedly provided at the output end of the cylinder 21, and two rotating plates 23 are rotatably provided inside the collecting box 22. A mounting plate 24 is fixedly provided on the fixed frame 15 below the charging box 16, and top blocks 25 are fixedly provided at both ends of the lower surface of the mounting plate 24. The top blocks 25 are directly opposite to the end positions of the two rotating plates 23 below. A torsion spring 3 is provided on the circular shaft rotatably connected to the rotating plate 23 and the collecting box 22, and a rubber pad 4 is fixedly provided on the upper surface of the collecting box 22, and the rubber pad 4 has the same area as the collecting box 22;

[0027] When the activated carbon is regenerated, the collecting box 22 is lifted up by the cylinder 21, the rubber pad 4 at the upper end of the collecting box 22 is fitted with the fixing frame 15, and the rotating plate 23 is pushed open by the top block 25 and is inclined. After some impurities on the heated activated carbon are desorbed, they will fall onto the upper surface of the rotating plate 23 and enter the collecting box 22 along the rotating plate 23, so as to effectively collect the impurities and improve the hygiene in the exhaust gas treatment box 1. When the collecting box 22 descends, the rotating plate 23 leaves the top block 25, and the two rotating plates 23 are closed by the torsion spring 3 to prevent the exhaust gas from entering the collecting box 22.

[0028] As described above, in the utility model, hot air is transported through the air conveying pipe and blown into the loading box from the discharge pipe to heat the activated carbon, so that the "triphenyl" waste gas is desorbed and the activated carbon is regenerated. The hot air in the air conveying pipe is first introduced into the air conveying pipe by the air pump to carry out external cold air. Due to the high temperature of the exhaust gas, the cold air in the air conveying pipe spirally attached to the exhaust gas conveying pipe will be preheated, and then heated by the heater to increase the heating speed of the cold air and reduce energy consumption; at the same time, in the utility model, when the activated carbon is regenerated, the collection box is lifted up by the cylinder, the rubber pad at the upper end of the collection box is attached to the fixed frame, and the rotating plate is pushed open by the top block and is inclined. After some impurities on the heated activated carbon are desorbed, they will fall on the upper surface of the rotating plate and enter the collection box along the rotating plate, so that the impurities are effectively collected and the hygiene in the exhaust gas treatment box is improved.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An exhaust gas treatment system, comprising an exhaust gas treatment box (1), an exhaust gas delivery pipe (11) connected to the end of the exhaust gas treatment box (1), a heater (14), an air pump (12) and two air delivery pipes (13) connected to the air pump (12), characterized in that: The two air conveying pipes (13) are spirally wound around the outer wall of the exhaust gas conveying pipe (11), and the two air conveying pipes (13) pass through the inside of the annular heating end of the heater (14). A fixing frame (15) is fixedly provided in the exhaust gas treatment box (1), and two charging boxes (16) filled with activated carbon are provided on the fixing frame (15). Two discharge pipes (18) are fixedly provided near the end of the exhaust gas conveying pipe (11) on the fixing frame (15), and the two discharge pipes (18) are directly opposite to the end of the charging box (16). The ends of the air conveying pipes (13) are fixedly connected to the discharge pipes (18), and two collection components for collecting impurities desorbed from the activated carbon are provided in the exhaust gas treatment box (1).

2. The exhaust gas treatment system according to claim 1, characterized in that: The collection assembly comprises two pairs of fixed rods (2) mounted on the inner wall of the exhaust gas treatment box (1), the fixed rods (2) are each clamped with a cylinder (21), the output end of the cylinder (21) is fixedly provided with a collection box (22), two rotating plates (23) are rotatably provided inside the collection box (22), a mounting plate (24) is fixedly provided on the fixed frame (15) below the charging box (16), top blocks (25) are fixedly provided at both ends of the lower surface of the mounting plate (24), and the top blocks (25) are directly opposite to the end positions of the two rotating plates (23) below.

3. The exhaust gas treatment system according to claim 2, characterized in that: A torsion spring (3) is provided on the circular shaft that is rotatably connected to the rotating plate (23) and the collecting box (22).

4. The tail gas treatment system according to claim 2, characterized in that: A rubber pad (4) is fixedly provided on the upper surface of the collection box (22); the rubber pad (4) has the same area as the collection box (22).

5. The tail gas treatment system according to claim 1, characterized in that: The top and bottom of the charging box (16) are provided with air passages, and the contact portion between the fixing frame (15) and the bottom of the charging box (16) is provided with a connecting groove, and the connecting groove is in communication with the air passage of the charging box (16).

6. The tail gas treatment system according to claim 1, characterized in that: One end of the two air delivery pipes (13) is located inside the exhaust gas treatment box (1).

7. The tail gas treatment system according to claim 1, characterized in that: Both ends and the bottom of the charging box (16) are in contact with the inner wall of the fixing frame (15).

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