Waste gas purification system and waste gas deacidification pool

Abstract

The utility model provides a waste gas purification system and a waste gas deacidification pool, and belongs to the technical field of waste gas purification treatment. Comprising a waste gas purification box, a deacidification pool body, an atomized particle catcher, a molecular sieve and an activated carbon adsorption layer are sequentially installed in the waste gas purification box from bottom to top, water is stored in the deacidification pool body, and waste gas is introduced into the deacidification pool body for deacidification treatment. Through the arrangement of the auxiliary crushing assembly, after bubbles are crushed by the stainless steel wire mesh, the air cylinder drives the disc to move downwards in the bubble floating process, so that water flow and the bubbles pass through the trumpet-shaped crushing holes and the crushing barrel, the pressure borne by the bubbles in the crushing holes and the crushing barrel is changed, and the smaller bubbles are crushed; meanwhile, the fan blades are driven to rotate when the water flow passes through, and the fan blades can scatter small bubbles, so that the bubbles are crushed more thoroughly, hydrochloric acid and sulfuric acid in the waste gas are fully mixed with water, and the deacidification treatment of the waste gas is more comprehensive and thorough.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas purification and treatment, in particular to a waste gas purification system and a waste gas deacidification tank. Background Art

[0002] In order to explore the reserves of shale oil, it is first necessary to calculate the saturation, porosity, density and other parameters in the rock sample, and to conduct oil washing, extraction and other experiments. Toxic and harmful reagents are used in the cleaning of shale oil rocks, and waste gas will also be generated during the experiment. Since the waste gas contains toxic and harmful substances such as toluene, chloroform, dichloromethane, hydrochloric acid, sulfuric acid, etc., it causes certain pollution to the experimenters and the environment. Before the waste gas is discharged into the air, it needs to be purified. During the treatment, the waste gas is passed through an activated carbon adsorption layer to achieve purification of the waste gas.

[0003] In laboratories, activated carbon adsorption boxes are often used to treat acidic waste gas. For example, a Chinese patent with authorization publication number CN215311287U discloses an activated carbon adsorption box for laboratory waste gas treatment, which includes an adsorption box with an activated carbon plate installed in the adsorption box. The activated carbon plate is used to adsorb and purify the acidic waste gas, and the purified waste gas is then discharged from the adsorption box. However, the waste gas is not deacidified before passing into the activated carbon plate. The undeacidified waste gas directly contacts the activated carbon plate. The service life of the activated carbon in the activated carbon plate is extremely short, and the activated carbon needs to be replaced frequently, resulting in a high cost for waste gas treatment. At the same time, during treatment, the acidic gas in the waste gas has a strong corrosive effect on the equipment. Therefore, the present application provides a waste gas purification system and a waste gas deacidification tank to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a waste gas purification system and a waste gas deacidification tank to solve the technical problems that the waste gas that has not been deacidified directly contacts the activated carbon adsorption layer, the activated carbon needs to be frequently replaced, and the waste gas treatment cost is high; and the acid gas in the waste gas has a strong corrosive effect on the equipment.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A waste gas purification system includes a waste gas purification box, wherein a deacidification tank body, an atomized particle trap, a molecular sieve and an activated carbon adsorption layer are installed in sequence from bottom to top inside the waste gas purification box, water is stored in the deacidification tank body, and waste gas is passed into the deacidification tank body for deacidification treatment, the atomized particle trap is used to capture moisture in the waste gas after deacidification, the molecular sieve is used to further dehydrate the waste gas, and the activated carbon adsorption layer is used to adsorb the dehydrated waste gas.

[0007] A waste gas deacidification tank is used in the above-mentioned waste gas purification system. A stainless steel wire mesh is fixed on the inner wall of the deacidification tank body. The waste gas passes into the deacidification tank body. The stainless steel wire mesh is used to break the bubbles. An auxiliary crushing component is provided in the deacidification tank body. The auxiliary crushing component includes a sheath fixed to the bottom of the inner wall of the deacidification tank body. A cylinder is fixed in the sheath. The top of the piston rod of the cylinder passes through the sheath and is fixed with a circular plate. The circular plate is located in the deacidification tank body, and a crushing hole for breaking the bubbles is opened on the surface of the circular plate.

[0008] Preferably, the crushing hole is in the shape of a trumpet with its opening facing downward.

[0009] Preferably, an L-shaped shaft is fixed to the inner wall of the crushing hole, and fan blades are movably sleeved on the surface of the L-shaped shaft.

[0010] Preferably, a crushing barrel is fixed at the top of the circular plate at a position corresponding to the crushing hole.

[0011] Preferably, the crushing cylinder is in the shape of a truncated cone.

[0012] Preferably, a metal wire mesh is fixed on the top of the crushing cylinder.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] In the above scheme, through the setting of the auxiliary crushing component, after the bubbles are broken by the stainless steel wire mesh, the cylinder drives the disc to move downward during the bubble floating process, so that the water flow and bubbles pass through the trumpet-shaped crushing hole and crushing cylinder. The pressure on the bubbles in the crushing hole and crushing cylinder changes, causing smaller bubbles to be broken. At the same time, the fan blades are driven to rotate when the water flows through, and the fan blades can also break up smaller bubbles, thereby making the bubble crushing more thorough, and the hydrochloric acid and sulfuric acid in the exhaust gas are fully mixed with water, so that the deacidification treatment of the exhaust gas is more comprehensive and thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable one skilled in the relevant art to make and use the present disclosure.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the stainless steel wire mesh of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the crushing hole of the utility model;

[0019] Figure 4 This is a schematic diagram of the fan blade structure of the utility model;

[0020] Figure 5 This is a cross-sectional view of the cylinder of the utility model;

[0021] Figure 6 This is a diagram of the exhaust gas purification system of the present utility model.

[0022] Reference numerals:

[0023] 1. Deacidification tank body; 2. Stainless steel wire mesh; 3. Auxiliary crushing assembly; 31. Cylinder; 32. Sheath; 33. Circular plate; 34. Crushing hole; 35. L-shaped shaft; 36. Fan blades; 37. Crushing cylinder; 38. Wire mesh; 4. Exhaust gas purification box; 5. Atomized particle trap; 6. Molecular sieve; 7. Activated carbon adsorption layer. DETAILED DESCRIPTION

[0024] The following describes in detail an exhaust gas purification system and exhaust gas deacidification tank provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known techniques. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0025] like Figures 1-6As shown, the embodiment of the present invention provides an exhaust gas purification system, including an exhaust gas purification box 4, wherein a deacidification tank body 1, an atomized particle trap 5, a molecular sieve 6 and an activated carbon adsorption layer 7 are sequentially installed inside the exhaust gas purification box 4 from bottom to top. The lower end of the exhaust gas purification box 4 is connected to an air inlet pipe, which extends into the deacidification tank body 1. The upper end of the exhaust gas purification box 4 is connected to an exhaust pipe. Water is stored in the deacidification tank body 1, and the exhaust gas is passed into the deacidification tank body 1 for deacidification treatment. The atomized particle trap 5 is used to capture moisture in the exhaust gas after deacidification, and the molecular sieve 6 is used to capture moisture in the exhaust gas after deacidification. It is used to further dehydrate the waste gas. The activated carbon adsorption layer 7 is used to adsorb the dehydrated waste gas. After the waste gas is deacidified by the deacidification tank body 1, the deacidified waste gas enters the atomized particle catcher 5 through the outlet pipe of the deacidification tank body 1. Due to inertia, the trace water contained in the gas (the water does not contain methane, chloroform, and dichloromethane) adheres to the atomized particle catcher 5 and then flows into the deacidification tank body 1. Then, the waste gas is sent to the molecular sieve 6, which fully adsorbs the trace water contained in the gas. Ensure that the gas passing through the activated carbon adsorption layer 7 has no trace of moisture, and improve the adsorption rate of harmful gases; finally, the exhaust gas is treated by the activated carbon adsorption layer 7, and the methane, chloroform, and dichloromethane gases contained in the exhaust gas are fully adsorbed, and the pure exhaust is discharged from the top of the exhaust gas purification box 4, thereby achieving the purification of the exhaust gas. A water inlet and a drain outlet are also installed on the side of the exhaust gas purification box 4. The water in the deacidification tank body 1 can be discharged by opening the drain outlet valve, and then water is added to the deacidification tank body 1 from the water inlet to achieve the deacidification tank body 1. The replacement of reclaimed water utilizes the design of the deacidification tank body 1 to achieve deacidification treatment of the exhaust gas, avoiding corrosion to the equipment and damage to the activated carbon, and greatly reducing the cost of gas purification. At the same time, a heater for drying the molecular sieve 6 is provided at the bottom of the molecular sieve 6; the heater is turned on periodically to dry the activated carbon adsorption layer 7 and the moisture contained in the molecular sieve 6, thereby extending the service life of the activated carbon adsorption layer 7 and the molecular sieve 6. At the same time, the above-mentioned components can be connected by pipes and used separately, or can be combined into an integrated treatment equipment as needed.

[0026] A waste gas deacidification tank is used in the above-mentioned waste gas purification system. A stainless steel wire mesh 2 is fixed to the inner wall of the deacidification tank body 1. The waste gas is passed into the deacidification tank body 1. The stainless steel wire mesh 2 is used to break the bubbles. The waste gas is passed into the deacidification tank body 1 to generate bubbles. The bubbles float up and pass through the stainless steel wire mesh 2 to be broken, so that the hydrochloric acid and sulfuric acid in the waste gas are mixed with water, thereby achieving deacidification treatment of the waste gas. An auxiliary crushing component 3 is provided in the deacidification tank body 1. The auxiliary crushing component 3 includes a sheath 32 fixed to the bottom of the inner wall of the deacidification tank body 1. A cylinder 31 is fixed in the sheath 32. The top of the piston rod of the cylinder 31 passes through the sheath 32 and is fixed with a circular plate 33. The circular plate 33 is located in the deacidification tank body 1, and the surface of the circular plate 33 is provided with a for crushing the bubbles. The crushing holes 34, the sheath 32, the piston rod of the cylinder 31 and the circular plate 33 are all made of stainless steel. A sealing ring is installed between the sheath 32 and the piston rod of the cylinder 31 to seal the connection between the two to prevent water from entering the sheath 32. The side of the sheath 32 has a through hole for the passage of a pipeline. The air compressor supplies air to the cylinder 31 through the pipeline. The piston rod of the cylinder 31 shortens and drives the circular plate 33 to move downward, so that the water flow carries bubbles through the multiple crushing holes 34. The pressure on the water flow in the crushing holes 34 changes, thereby realizing the crushing of the bubbles in the water flow, making the bubble crushing more comprehensive, so that the hydrochloric acid and sulfuric acid in the exhaust gas are mixed with water more fully, so that the deacidification treatment of the exhaust gas is more comprehensive and thorough.

[0027] like Figure 2 As shown, in this embodiment, the breaking hole 34 is in the shape of a trumpet with an opening facing downward. The bottom opening of the breaking hole 34 is large and the upper opening is small, so that the pressure of the water flow after entering changes, and the bubbles in the water flow are broken by the change in pressure.

[0028] like Figure 2 As shown, in this embodiment, an L-shaped shaft 35 is fixed to the inner wall of the crushing hole 34, and a fan blade 36 is movably sleeved on the surface of the L-shaped shaft 35. Both the L-shaped shaft 35 and the fan blade 36 are made of stainless steel. When water flows through the fan blade 36, the water flow drives the fan blade 36 to rotate around the L-shaped shaft 35. When the fan blade 36 rotates, the bubbles in the water flow are crushed.

[0029] like Figure 2 As shown, in this embodiment, a crushing barrel 37 is fixed at the top of the circular plate 33 corresponding to the crushing hole 34 .

[0030] like Figure 2 As shown, in this embodiment, the crushing cylinder 37 is in the shape of a cone, with a large opening at the bottom and a small opening at the top, so that the pressure of the water flow gradually increases after entering the crushing cylinder 37, and the bubbles in the water flow are crushed by changing the pressure.

[0031] like Figure 1 and Figure 2 As shown, in this embodiment, a metal mesh 38 is fixed on the top of the crushing cylinder 37. The metal mesh 38 is made of stainless steel. The water flow with bubbles passes through the metal mesh 38, and the metal mesh 38 crushes the bubbles in the water flow again, making the bubble crushing more comprehensive and thorough.

[0032] Working principle: The waste gas is introduced into the deacidification tank body 1 through the pipeline and contacts with the water in the deacidification tank body 1 to generate bubbles. The bubbles float up and contact the stainless steel wire mesh 2, which breaks the bubbles. When breaking, the soluble hydrochloric acid and sulfuric acid in the waste gas dissolve into the water, thus achieving deacidification of the waste gas. The large bubbles are broken by the stainless steel wire mesh 2 to form small bubbles. The small bubbles continue to float up, and the piston rod of the cylinder 31 shortens and drives the circular plate 33 to move downward, so that the water flow carries the small bubbles through the crushing hole 34 and the crushing cylinder 37. The bubbles are separated by the crushing hole 34 and the crushing cylinder 37. The pressure in the exhaust gas changes, causing smaller bubbles to break. At the same time, the water flow drives the fan blades 36 to rotate about the L-shaped axis 35. The fan blades 36 break up the smaller bubbles during the rotation process. The water flow passes through the metal mesh 38, and the metal mesh 38 is used to further break the bubbles, making the bubble breakage more thorough. The hydrochloric acid and sulfuric acid in the exhaust gas are fully mixed with the water, thereby making the deacidification treatment of the exhaust gas more comprehensive and thorough. The piston rod of the cylinder 31 continuously drives the circular plate 33 to reciprocate up and down, and further breaks the bubbles during the movement.

[0033] After the deacidification waste gas enters the atomized particle catcher 5 through the outlet pipe of the deacidification tank body 1, the trace moisture contained in the gas (the water does not contain methane, chloroform, and dichloromethane) adheres to the atomized particle catcher 5 due to inertia and then flows into the deacidification tank body 1; then, the waste gas is sent to the molecular sieve 6, which fully adsorbs the trace moisture contained in the gas, ensuring that the gas passing into the activated carbon adsorption layer 7 does not contain trace moisture, thereby improving the adsorption rate of harmful gases; finally, the waste gas is treated by the activated carbon adsorption layer 7, and the methane, chloroform, and dichloromethane gases contained in the waste gas are fully adsorbed, and the pure exhaust gas is discharged from the top of the waste gas purification box 4, thereby achieving the purification of the waste gas.

[0034] The present invention encompasses any substitutions, modifications, equivalent methods, and solutions that are not within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail in the preferred embodiments of the present invention above, but those skilled in the art can fully understand the present invention without these detailed descriptions.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A waste gas deacidification tank, characterized in that: The invention comprises a deacidification tank body (1), wherein a stainless steel wire mesh (2) is fixed to the inner wall of the deacidification tank body (1), waste gas is introduced into the deacidification tank body (1), the stainless steel wire mesh (2) is used to crush bubbles, an auxiliary crushing component (3) is arranged in the deacidification tank body (1), and the auxiliary crushing component (3) comprises a sheath (32) fixed to the bottom of the inner wall of the deacidification tank body (1), a cylinder (31) is fixed in the sheath (32), a piston rod of the cylinder (31) penetrates the sheath (32) and is fixed with a circular plate (33), the circular plate (33) is located in the deacidification tank body (1), and a crushing hole (34) for crushing bubbles is opened on the surface of the circular plate (33).

2. The waste gas deacidification tank according to claim 1, characterized in that: The crushing hole (34) is in the shape of a trumpet with its opening facing downward.

3. The waste gas deacidification tank according to claim 1, characterized in that: An L-shaped shaft (35) is fixed to the inner wall of the crushing hole (34), and a fan blade (36) is movably sleeved on the surface of the L-shaped shaft (35).

4. The waste gas deacidification tank according to claim 1, characterized in that: A crushing cylinder (37) is fixed on the top of the circular plate (33) at a position corresponding to the crushing hole (34).

5. The waste gas deacidification tank according to claim 4, characterized in that: The crushing cylinder (37) is in the shape of a truncated cone.

6. The waste gas deacidification tank according to claim 4, characterized in that: A metal wire mesh (38) is fixed to the top of the crushing cylinder (37).

7. A waste gas purification system, applied to a waste gas deacidification tank according to any one of claims 1 to 6, characterized in that: The invention comprises an exhaust gas purification box (4), wherein a deacidification tank body (1), an atomized particle trap (5), a molecular sieve (6) and an activated carbon adsorption layer (7) are sequentially installed inside the exhaust gas purification box (4) from bottom to top. Water is stored in the deacidification tank body (1), and exhaust gas is passed into the deacidification tank body (1) for deacidification treatment. The atomized particle trap (5) is used to capture water in the exhaust gas after deacidification. The molecular sieve (6) is used to further dehydrate the exhaust gas. The activated carbon adsorption layer (7) is used to adsorb the exhaust gas after dehydration.

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