A papermaking waste gas recovery and treatment device

Abstract

The utility model provides a papermaking waste gas recovery and treatment device, comprising an absorption tank with an absorption groove on the top end face, an absorption liquid placed in the absorption groove for absorbing and treating the papermaking waste gas, and an air guide mechanism which is arranged on the absorption tank and passes the waste gas into the absorption liquid. The air guide mechanism comprises an air inlet pipe which is arranged at one end at the bottom of the absorption tank and located in the absorption liquid and at the other end at the outside of the absorption tank, a plurality of spray discs arranged on the pipe body of the air inlet pipe located in the absorption tank, and a crushing component which is arranged above the spray disc and crushes the waste gas sprayed from the spray disc. The utility model can conveniently and fully absorb and treat the waste gas, improve the waste gas absorption and treatment efficiency, and avoid the situation where the waste gas overflows and causes environmental pollution due to insufficient waste gas absorption and treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas recovery and treatment, in particular to a papermaking waste gas recovery and treatment device. Background Art

[0002] In the papermaking, printing and decoration industries, it is easy to generate a large amount of waste gas, which pollutes the external environment. As people's environmental awareness continues to increase, it is very important to improve the existing waste gas treatment technology and improve the waste gas removal efficiency. The existing waste gas treatment system generally adopts the combustion treatment method, but it is difficult to fully burn some gases and there is still a lot of pollution. Therefore, more and more waste gas absorption liquids are used to absorb waste gas.

[0003] The conventional exhaust gas absorption method is to directly pass the exhaust gas pipeline into the absorption liquid, but this method often results in poor exhaust gas absorption effect. Among them, the contact area between the exhaust gas and the liquid is small, and the absorption efficiency is limited; and when the exhaust gas is passed in quickly, most of the gas overflows in the form of bubbles before being absorbed, causing environmental pollution. Utility Model Content

[0004] In response to the above technical problems, the utility model provides a papermaking waste gas recovery and treatment device, which can conveniently and fully absorb and treat the waste gas, improve the waste gas absorption and treatment efficiency, and avoid the situation where insufficient waste gas absorption and treatment leads to waste gas overflow and environmental pollution.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a papermaking waste gas recovery and treatment device, comprising an absorption tank with an absorption groove on the top end face, an absorption liquid placed in the absorption tank to absorb and treat the papermaking waste gas, and an air guide mechanism that passes through the absorption tank and passes the waste gas into the absorption liquid, the air guide mechanism comprising an air intake pipe with one end passing through the bottom of the absorption tank and located in the absorption liquid and the other end passing through the outside of the absorption tank, a plurality of spray discs arranged on the pipe body of the air intake pipe located in the absorption tank, and a crushing assembly arranged above the spray disc and crushing the waste gas sprayed from the spray disc.

[0006] Preferably, one end of the air inlet pipe passing through the absorption tank is spirally wound into a spiral structure.

[0007] Preferably, it also includes a connecting assembly connecting the spray plate and the air intake pipe, the connecting assembly including a plurality of through pipes which are evenly spaced along the length direction of the air intake pipe and are arranged on the side of the air intake pipe adjacent to the opening of the absorption tank and which are communicated with the interior of the air intake pipe, a driving ball which is fixedly arranged on the through pipe and is communicated with the interior of the through pipe, and a through ring which is arranged above the driving ball and is communicated with the interior of the driving ball, and the spray plate is arranged on the through ring and is communicated with the interior of the through ring.

[0008] Preferably, a plurality of spray discs are arranged in a circular array on a ring body on one side of the through ring adjacent to the opening of the absorption groove, and a plurality of exhaust holes are provided on the top end surface of the spray disc.

[0009] Preferably, the through ring is connected to and penetrates the interior of the top end of the driving ball through a plurality of connecting tubes.

[0010] Preferably, the crushing assembly includes a rotating rod arranged in a vertical direction and with its bottom end rotatably inserted into a driving ball, a rotating block fixedly arranged on the top end of the rotating rod, a plurality of cutting strips arranged in a circular array on the side of the rotating block and with the rod body vertically fixedly connected to the side of the rotating block, and a driving member arranged in a ball groove opened in the driving ball to drive the rotating rod to rotate, and the cutting strip is located above the spray disc.

[0011] Preferably, the driving member includes a guide tube with two ends respectively passing through the through tube and the bottom end of the driving ball, and a plurality of driving blades fixed in a circular array on the rod body of the rotating rod located in the ball groove, and one end of the guide tube passing through the bottom end of the driving ball is directly opposite to the driving blade.

[0012] The beneficial effects of the utility model are as follows: the exhaust gas is directly introduced into the absorption liquid in the absorption tank through the air inlet pipe, so that the exhaust gas is absorbed by the absorption liquid placed in the absorption tank, and the crushing component is arranged above the spray plate, so that the gas sprayed through the spray plate is crushed, so as to increase the contact area between the gas and the absorption liquid, so as to fully absorb the exhaust gas, and the exhaust gas can be fully absorbed and treated conveniently, thereby improving the exhaust gas absorption treatment efficiency and avoiding the situation where the exhaust gas overflows and causes environmental pollution due to insufficient exhaust gas absorption treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is a simplified structural diagram of the papermaking waste gas recovery and treatment device proposed in the utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the gas guide mechanism proposed by the utility model.

[0016] Figure 3 It is a schematic diagram of the structure of the connection component of the utility model.

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the connection component of the present utility model.

[0018] In the figure: 1. absorption tank; 2. tank cover; 3. liquid inlet pipe; 4. liquid discharge pipe; 5. exhaust pipe; 6. air inlet pipe; 7. through pipe; 8. driving ball; 9. through ring; 10. guide pipe; 11. spray disc; 12. exhaust hole; 13. rotating rod; 14. rotating block; 15. cutting strip; 16. ball groove; 17. driving blade; 18. connecting pipe. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0020] See also Figure 1-4 A papermaking waste gas recovery and treatment device includes an absorption tank 1 with an absorption groove on the top end face, an absorption liquid placed in the absorption tank for absorbing and treating papermaking waste gas, and an air guide mechanism that passes through the absorption tank 1 and passes the waste gas into the absorption liquid. The air guide mechanism includes an air inlet pipe 6 with one end passing through the bottom of the absorption tank and located in the absorption liquid and the other end passing through the outside of the absorption tank 1, a plurality of spray discs 11 arranged on the pipe body of the air inlet pipe 6 located in the absorption tank, and a crushing component arranged above the spray disc 11 and crushing the waste gas sprayed from the spray disc 11.

[0021] like Figure 1-4 As shown, the exhaust gas is directly introduced into the absorption tank through the air intake pipe 6, so that the exhaust gas is absorbed by the absorption liquid placed in the absorption tank, and the exhaust gas is sprayed into the absorption liquid by the spray plate 11 arranged on the air intake pipe 6, so that the exhaust gas is absorbed by the absorption liquid, and then the bubbles of the exhaust gas entering the absorption liquid are cut and broken by the crushing component arranged above the spray plate 11, so as to increase the contact area between the bubbles formed by the exhaust gas in the absorption liquid and the absorption liquid, so that the exhaust gas can be fully absorbed and treated conveniently, the exhaust gas absorption treatment efficiency is improved, and the situation that the exhaust gas overflow and environmental pollution caused by insufficient exhaust gas absorption treatment is avoided.

[0022] One end of the air inlet pipe 6 passing through the absorption tank is spirally wound into a helical structure.

[0023] It also includes a connecting assembly that connects the spray disc 11 to the air intake pipe 6, the connecting assembly includes a plurality of through pipes 7 that are evenly spaced along the length direction of the air intake pipe 6 and are arranged on the side of the air intake pipe 6 near the opening of the absorption tank and are communicated with the interior of the air intake pipe 6, a driving ball 8 that is fixedly arranged on the through pipe 7 and is communicated with the interior of the through pipe 7, and a through ring 9 that is arranged above the driving ball 8 and is communicated with the interior of the driving ball 8, and the spray disc 11 is arranged on the through ring 9 and is communicated with the interior of the through ring 9.

[0024] like Figure 2-4 As shown, after the exhaust gas is introduced into the absorption tank through the intake pipe 6, the exhaust gas is sprayed out through a plurality of spray discs 11 arranged on the intake pipe 6, so as to facilitate the contact between the exhaust gas and the absorption liquid, thereby facilitating the absorption treatment of the exhaust gas by the absorption liquid.

[0025] like Figure 3 As shown, a plurality of spray discs 11 are arranged in a circular array on the ring body of the through ring 9 adjacent to the opening of the absorption groove, and a plurality of exhaust holes 12 are provided on the top end face of the spray disc 11. The plurality of exhaust holes 12 provided on the end face of the spray disc 11 facilitate separation of the exhaust gas into a plurality of small bubbles into the absorption liquid, thereby facilitating the absorption liquid to absorb and process the bubbles formed by the exhaust gas, and the bubbles are broken by the breaking component provided above the spray disc 11, further improving the absorption and processing effect and efficiency of the absorption liquid on the exhaust gas.

[0026] The through ring 9 is connected to and penetrates the interior of the top end of the driving ball 8 through a plurality of connecting tubes 18 .

[0027] The crushing assembly includes a rotating rod 13 which is arranged in a vertical direction and the bottom end of which is rotatably inserted into the driving ball 8, a rotating block 14 which is fixedly arranged on the top end of the rotating rod 13, a plurality of cutting strips 15 which are arranged in a circular array on the side of the rotating block 14 and the rod body is vertically fixedly connected to the side of the rotating block 14, and a driving member which is arranged in a ball groove 16 opened in the driving ball 8 and drives the rotating rod 13 to rotate. The cutting strip 15 is located above the spray disc 11.

[0028] The driving member includes a guide tube 10 whose two ends are respectively passed through the through tube 7 and the bottom end of the driving ball 8, and a plurality of driving blades 17 fixedly arranged in a circular array on the rod body of the rotating rod 13 located in the ball groove 16. One end of the guide tube 10 passing through the bottom end of the driving ball 8 is directly opposite to the driving blade 17.

[0029] like Figure 2-4As shown, after the exhaust gas passes through the intake pipe 6, the exhaust gas will enter the through-tube 7, and then be ejected through the end of the through-tube 7 penetrated on the inner bottom end of the driving ball 8, so that the exhaust gas flow is sprayed onto the driving blade 17 arranged on the rod body of the rotating rod 13, so as to drive the rotating rod to rotate. After the airflow drives the driving blade 17 to rotate, the exhaust gas flow passes into the through-ring 9 through the connecting pipe 18, and then is discharged through the exhaust holes 12 opened on the multiple spray discs 11, so that when the airflow becomes larger, the rotating rod 13 can be driven to rotate quickly, that is, it is easy to drive the multiple cutting strips 15 arranged on the rotating rod 13 to quickly cut and crush the bubbles formed by the airflow ejected from the exhaust holes 12, so as to ensure that when the airflow becomes larger, the contact area between the bubbles formed by the airflow and the absorption liquid can be increased, and the exhaust gas can be conveniently and fully absorbed and treated, thereby improving the exhaust gas absorption and treatment efficiency, and avoiding the situation where the exhaust gas overflows and causes environmental pollution due to insufficient exhaust gas absorption and treatment.

[0030] like Figure 1 As shown, a tank cover 2 is arranged on the end surface of the absorption tank 1, and a liquid inlet pipe 3 and an exhaust pipe 5 are arranged on the tank cover 2, and a liquid discharge pipe 4 is also arranged on the bottom end of the side of the absorption tank 1.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A papermaking waste gas recovery and treatment device, comprising an absorption tank (1) with an absorption groove formed on the top end surface, an absorption liquid placed in the absorption groove for absorbing and treating the papermaking waste gas, and a gas guide mechanism provided on the absorption tank (1) and passing the waste gas into the absorption liquid, characterized in that: The air guide mechanism comprises an air intake pipe (6) having one end passing through the bottom of the absorption tank and located in the absorption liquid and the other end passing through the outside of the absorption tank (1), a plurality of spray discs (11) arranged on the air intake pipe (6) located on the pipe body in the absorption tank, and a crushing assembly arranged above the spray discs (11) and crushing the waste gas sprayed out of the spray discs (11).

2. A papermaking waste gas recovery and treatment device according to claim 1, characterized in that: One end of the air inlet pipe (6) passing through the absorption tank is spirally wound into a helical structure.

3. A papermaking waste gas recovery and treatment device according to claim 2, characterized in that: It also includes a connection assembly for connecting the spray plate (11) to the air intake pipe (6), the connection assembly including a plurality of through-tubes (7) arranged at equal intervals along the length direction of the air intake pipe (6) on the side of the air intake pipe (6) near the opening of the absorption tank and communicating with the interior of the air intake pipe (6), a driving ball (8) fixedly arranged on the through-tube (7) and communicating with the interior of the through-tube (7), and a through-ring (9) arranged above the driving ball (8) and communicating with the interior of the driving ball (8), the spray plate (11) being arranged on the through-ring (9) and communicating with the interior of the through-ring (9).

4. A papermaking waste gas recovery and treatment device according to claim 3, characterized in that: A plurality of spray discs (11) are arranged in a circumferential array on a ring body of a through ring (9) adjacent to an opening of the absorption groove, and a plurality of exhaust holes (12) are provided on the top end surface of the spray disc (11).

5. The papermaking waste gas recovery and treatment device according to claim 4 is characterized in that: The through ring (9) is connected and penetrated with the inner top end of the driving ball (8) through a plurality of connecting tubes (18).

6. The papermaking waste gas recovery and treatment device according to claim 5 is characterized in that: The crushing assembly comprises a rotating rod (13) arranged in a vertical direction and having its bottom end rotatably inserted into a driving ball (8), a rotating block (14) fixedly arranged on the top end of the rotating rod (13), a plurality of cutting strips (15) arranged in a circumferential array on the side of the rotating block (14) and having a rod body vertically fixedly connected to the side of the rotating block (14), and a driving member arranged in a ball groove (16) provided in the driving ball (8) to drive the rotating rod (13) to rotate, wherein the cutting strip (15) is located above the spray disc (11).

7. The papermaking waste gas recovery and treatment device according to claim 6, characterized in that: The driving member comprises a guide tube (10) with two ends respectively passing through the through tube (7) and the bottom end of the driving ball (8), and a plurality of driving leaves (17) fixedly arranged in a circumferential array on the rod body of the rotating rod (13) located in the ball groove (16), and one end of the guide tube (10) passing through the bottom end of the driving ball (8) is directly opposite to the driving leaf (17).

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