Washing tower for waste gas treatment of hazardous waste temporary storage warehouse

Abstract

The utility model discloses a washing tower for waste gas treatment of a temporary hazardous waste storage warehouse, which comprises a tower body, and a wire mesh demister, a folded plate demister, a first absorption liquid conveying pipe, a filling plate and a second absorption liquid conveying pipe are sequentially arranged in the tower body from top to bottom. One end of the first absorption liquid conveying pipe and one end of the second absorption liquid conveying pipe penetrate through the outer wall of one side of the tower body and extend to the outside, a first flow guide plate is installed below the inner wall of the tower body and located below the second absorption liquid conveying pipe, and a waste gas inlet pipe is arranged below the outer wall of the other side of the tower body and located below the second absorption liquid conveying pipe; and a third absorption liquid conveying pipe and a second flow guide plate are arranged in the waste gas inlet pipe. According to the utility model, the mixing degree of absorption liquid and waste gas is high, the gas-liquid two-phase contact surface is increased, the gas-liquid two-phase contact retention time is prolonged, and the reaction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental management equipment technical field, specifically be a kind of washing tower for waste gas treatment of dangerous waste temporary storage. BACKGROUND

[0002] Dangerous waste is complex in composition, and involves a wide range of industries, including chemical, petrochemical, pharmaceutical, machining and other industries with large output.

[0003] In the face of complex and diverse waste in dangerous waste temporary storage workshop, the gases generated, volatilized and escaped are also complex and diverse. Therefore, a combination of various methods such as physics, chemistry and biology needs to be considered to achieve the purpose of controlling and eliminating high and low concentrations of various waste gases and large-scale fluctuations.

[0004] In the absorption method, gaseous pollutants are purified by using liquid as absorbent, through washing device to make pollutants in waste gas fully contact with absorbent, through condensation, physical absorption, emulsification, chemical absorption or other actions to transfer pollutants to absorption liquid, so as to achieve the purpose of purifying waste gas.

[0005] Dangerous waste temporary storage has the characteristics of complex unorganized waste gas types and waste gas concentrations. Some acidic and foul-smelling gases can remove most of the components after passing through the washing tower, but there are still disadvantages such as low washing efficiency and obvious pressure drop. The traditional method to improve washing effect is to increase the number and flow of spray heads, increase the concentration of washing liquid, increase the volume of filler and increase the number of washing towers. The above methods have limited effect, and the related consumption increases directly, so a washing tower for waste gas treatment of dangerous waste temporary storage is designed. CONTENT OF THE UTILITY MODEL

[0006] In view of the defects or deficiencies of waste gas treatment washing tower, the purpose of the utility model is to provide a washing tower for waste gas treatment of dangerous waste temporary storage, which can increase the mixing degree of absorption liquid and waste gas, increase the gas-liquid two-phase contact surface, increase the gas-liquid two-phase contact time and improve the reaction efficiency.

[0007] To achieve the above utility model purposes, the utility model adopts the following technical solutions:

[0008] The washing tower for waste gas treatment of dangerous waste temporary storage provided by the utility model comprises a tower body, a wire mesh demister, a folded plate demister, a first absorption liquid conveying pipe, a filling plate and a second absorption liquid conveying pipe are sequentially arranged in the tower body from top to bottom, and one end of the first absorption liquid conveying pipe and the second absorption liquid conveying pipe penetrates through one side of the outer wall of the tower body and extends to the outside, a first flow guide plate is installed below the inner wall of the tower body, and the first flow guide plate is located below the second absorption liquid conveying pipe.

[0009] The lower side of the other outer wall of the tower body is provided with a waste gas inlet pipe, the inside of the waste gas inlet pipe is provided with a third absorption liquid conveying pipe and a second flow guide plate, and the third absorption liquid conveying pipe is located on one side of the second flow guide plate;

[0010] The outer wall of the first absorption liquid conveying pipe, the second absorption liquid conveying pipe and the third absorption liquid conveying pipe is provided with a branch pipe, and a spiral nozzle is installed on the other end of the branch pipe.

[0011] Preferably, the inside of the filling plate is filled with a Pall ring filler.

[0012] Preferably, the lower side of the outer wall of the tower body is provided with a liquid discharge pipe, and the liquid discharge pipe is provided with a valve body.

[0013] Preferably, the first absorption liquid conveying pipe and the second absorption liquid conveying pipe are fixed with the tower body by welding, and the welding parts between the first absorption liquid conveying pipe and the second absorption liquid conveying pipe and the tower body are coated with sealing glue.

[0014] Preferably, the top end of the tower body is provided with an exhaust pipe.

[0015] Preferably, the third absorption liquid conveying pipe and the waste gas inlet pipe are fixed by welding, and the welding part between the third absorption liquid conveying pipe and the waste gas inlet pipe is coated with sealing glue.

[0016] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0017] Through the cooperation of a series of structures, the spiral nozzle is added in front of the second flow guide plate in the waste gas inlet pipe, the waste gas is preliminarily mixed with the absorption liquid, and the extremely fine absorption liquid particles are in contact with the waste gas, thereby increasing the gas-liquid two-phase contact area.

[0018] Through the cooperation of a series of structures, the waste gas enters the tower body in a tangent direction of the tower body, contacts the first flow guide plate in the tower body, and forms a large number of vortexes, the gas-liquid two phases in the vortexes are fully mixed, the adjacent vortexes exchange components with each other, and at the same time, the formation of the vortexes further increases the mixing degree of the gas molecules and the absorption liquid sprayed from the upper part, and accelerates the reaction process.

[0019] Through the cooperation of a series of structures, the mixing degree of the absorption liquid and the waste gas is high, not only the gas-liquid two-phase contact surface is increased, but also the gas-liquid two-phase contact residence time is increased, and the reaction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings constituting a part of the description of the present application serve to provide a further understanding of the present application, and the illustrative embodiments of the present application and the description thereof serve to explain the present application, and do not constitute an improper limitation on the present application.

[0021] Figure 1 is the overall three-dimensional structure schematic diagram of the utility model.

[0022] Figure 2 is the overall internal three-dimensional structure schematic diagram of the utility model Figure One .

[0023] Figure 3 is the overall internal three-dimensional structure schematic diagram of the utility model Figure Two .

[0024] Figure 4 is the overhead internal structure schematic diagram of the utility model.

[0025] In the drawings:

[0026] Tower body;110, exhaust pipe;120, liquid discharge pipe;130, first absorption liquid conveying pipe;131, branch pipe;132, spiral spray head;140, second absorption liquid conveying pipe;150, first flow guide plate;

[0027] 200, waste gas inlet pipe;210, third absorption liquid conveying pipe;220, second flow guide plate;

[0028] 300, wire mesh demister;

[0029] 400, folded plate mist eliminator;

[0030] 500, filling plate;510, Pall ring filler. DETAILED DESCRIPTION

[0031] The utility model will be further described below in conjunction with the drawings and examples.

[0032] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as that generally understood by those skilled in the art to which the utility model belongs.

[0033] It should be noted that the terms used herein are only for the description of specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and in addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, it means that there is a feature, step, operation, device, component and / or its combination.

[0034] As Figures 1-4As shown, a kind of washing tower for hazardous waste temporary storage library waste gas treatment, including tower body 100, the inside of tower body 100 is sequentially provided with wire mesh demister 300 from top to bottom, baffle mist eliminator 400, first absorption liquid conveying pipe 130, filling plate 500 and second absorption liquid conveying pipe 140, wire mesh demister 300 can play the role of demisting droplet, baffle mist eliminator 400 can play the role of demisting, and the one end of first absorption liquid conveying pipe 130 and second absorption liquid conveying pipe 140 is through the one side outer wall of tower body 100 and extends to outside, the inner wall of tower body 100 is installed with first deflector 150 below, and first deflector 150 is below second absorption liquid conveying pipe 140, first deflector 150 is provided with three groups, three groups of first deflector 150 are all inclined angle, and the direction is consistent with the tangential direction of tower body 100;

[0035] The other side outer wall of tower body 100 is provided with waste gas inlet pipe 200 below, waste gas inlet pipe 200 has about 5 ° inclination, to facilitate part of condensation droplet to enter tower body 100, the inside of waste gas inlet pipe 200 is provided with third absorption liquid conveying pipe 210 and second deflector 220, and third absorption liquid conveying pipe 210 is located at the side of second deflector 220, second deflector 220 is provided with three groups, three groups of second deflector 220 are all fixed in the direction perpendicular to ground, and waste gas can be made along the tangential direction of tower body 100;

[0036] The outer wall of first absorption liquid conveying pipe 130, second absorption liquid conveying pipe 140 and third absorption liquid conveying pipe 210 is all provided with branch pipe 131, and the other end of branch pipe 131 is installed with spiral nozzle 132, after first absorption liquid conveying pipe 130, second absorption liquid conveying pipe 140 and third absorption liquid conveying pipe 210 are connected with external absorption liquid conveying structure, absorption liquid can be conveyed into spiral nozzle 132 and sprayed.

[0037] The inside of filling plate 500 is filled with Bauer ring packing 510.

[0038] The one side outer wall of tower body 100 is provided with drain pipe 120 below, and valve body is arranged on drain pipe 120, drain pipe 120 can discharge waste liquid at the bottom end in the inside of tower body 100.

[0039] First absorption liquid conveying pipe 130 and second absorption liquid conveying pipe 140 are all fixed by welding between tower body 100, and the welding place between first absorption liquid conveying pipe 130 and second absorption liquid conveying pipe 140 and tower body 100 is all coated with sealant, so that the welding place between first absorption liquid conveying pipe 130 and second absorption liquid conveying pipe 140 and tower body 100 can be sealed.

[0040] The top end of the tower body 100 is provided with an exhaust pipe 110, which can discharge the washed waste gas.

[0041] The third absorption liquid conveying pipe 210 is fixed with the waste gas inlet pipe 200 by welding, and the welding position between the third absorption liquid conveying pipe 210 and the waste gas inlet pipe 200 is coated with sealing glue, so that the welding position between the third absorption liquid conveying pipe 210 and the waste gas inlet pipe 200 can be sealed.

[0042] During the process that the waste gas enters the tower body 100 through the waste gas inlet pipe 200, the waste gas first passes through the spiral nozzle 132 inside the waste gas inlet pipe 200, the spiral nozzle 132 generates extremely fine particles to preliminarily mix with the waste gas and preliminarily purify and absorb the waste gas, the waste gas enters the tower body 100 along the tangent direction of the tower body 100 through the second flow guide plate 220, the waste gas entering the tower body 100 passes through the first flow guide plate 150 to form a large number of rotational flows and intensify the mixing degree of the gas-liquid two phases, at the same time, the spiral nozzle 132 on the upper layer of the first flow guide plate 150 sprays the absorption liquid downward to destroy the upward vortex and further intensify the gas-liquid mixing, increase the gas-liquid two-phase contact area, and increase the contact residence time, the gas continues to rise, is absorbed by the Pall ring filler 510, is demisted by the folded plate demister 400, is demisted by the wire mesh demister 300, and is discharged through the discharge port, so that the absorption liquid and the waste gas have high mixing degree, the gas-liquid two-phase contact surface is increased, the gas-liquid two-phase contact residence time is increased, and the reaction efficiency is improved.

[0043] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A scrubber tower for treating exhaust gas from a hazardous waste temporary storage facility, comprising a tower body (100), characterized in that: The inside of the tower body (100) is sequentially provided from top to bottom with a wire mesh demister (300), a folded-plate demister (400), a first absorption liquid conveying pipe (130), a filling plate (500) and a second absorption liquid conveying pipe (140), one end of the first absorption liquid conveying pipe (130) and the second absorption liquid conveying pipe (140) penetrates through one side outer wall of the tower body (100) and extends to the outside, a first flow guide plate (150) is installed below the inner wall of the tower body (100), and the first flow guide plate (150) is located below the second absorption liquid conveying pipe (140); The other side outer wall of the tower body (100) is provided below with a waste gas inlet pipe (200), the inside of the waste gas inlet pipe (200) is provided with a third absorption liquid conveying pipe (210) and a second flow guide plate (220), and the third absorption liquid conveying pipe (210) is located on one side of the second flow guide plate (220); The outer wall of the first absorption liquid conveying pipe (130), the second absorption liquid conveying pipe (140) and the third absorption liquid conveying pipe (210) is provided with a branch pipe (131), and the other end of the branch pipe (131) is provided with a spiral nozzle (132).

2. The scrubber tower for treating exhaust gas of a hazardous waste temporary storage according to claim 1, characterized by: The inside of the filling plate (500) is filled with a Pall ring filler (510).

3. The scrubber tower for treating waste gas from a hazardous waste temporary storage according to claim 1, characterized by: One side outer wall of the tower body (100) is provided below with a liquid discharge pipe (120), and the liquid discharge pipe (120) is provided with a valve body.

4. The scrubber tower for treating waste gas from a hazardous waste temporary storage according to claim 1, characterized by: The first absorption liquid conveying pipe (130) and the second absorption liquid conveying pipe (140) are fixed with the tower body (100) through welding, and the welding part between the first absorption liquid conveying pipe (130) and the second absorption liquid conveying pipe (140) and the tower body (100) is coated with sealing glue.

5. The scrubber tower for treating waste gas from a hazardous waste temporary storage according to claim 1, characterized by: The top end of the tower body (100) is provided with an exhaust pipe (110).

6. The scrubber tower for treating waste gas from a hazardous waste temporary storage according to claim 1, characterized by: The third absorption liquid conveying pipe (210) and the waste gas inlet pipe (200) are fixed through welding, and the welding part between the third absorption liquid conveying pipe (210) and the waste gas inlet pipe (200) is coated with sealing glue.

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