Catalytic combustion co waste gas treatment equipment

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to catalytic combustion co waste gas treatment equipment which comprises a box body, a catalytic component, a circulating component and an exhaust component, the circulating assembly comprises a first liquid storage tank, a second liquid storage tank fixedly installed on one side of the first liquid storage tank, an exhaust pipe fixedly installed on the top of the inner wall of the first liquid storage tank, a circulating pipe fixedly installed on the outer wall of the first liquid storage tank, and a liquid suction pipe fixedly installed at the bottom of the side, close to the second liquid storage tank, of the inner wall of the first liquid storage tank. The pump body is fixedly connected with the other end of the liquid suction pipe, and the circulating holes are formed in the inner walls of the first liquid storage tank and the second liquid storage tank and are aligned. According to the waste gas treatment device, the treated waste gas is absorbed by the solution in the first liquid storage tank, the waste gas which is not completely treated enters the circulating pipe, the solution in the second liquid storage tank and the solution in the first liquid storage tank to circulate, and the solution in the second liquid storage tank is heated by the combustor, so that the product of the absorbed and treated waste gas is decomposed, and the treated waste gas is separated from the waste gas.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, and particularly relates to a catalytic combustion CO waste gas treatment device. Background Art

[0002] Catalytic combustion is a commonly used method in the field of waste gas treatment. The catalytic combustion method belongs to the thermal destruction method. Its mechanism is to oxidize, thermally crack, and thermally decompose the organic components in the waste gas, converting them into non-toxic CO2 and H2O. The catalytic combustion technology provides a unique economic solution for the treatment of pollutants.

[0003] In the prior art, for example, a new type of catalytic combustion CO waste gas treatment device disclosed in the patent with the publication number CN209763109U includes a device main body. The top of the device main body is communicated with an air inlet pipe, and a first fan is installed between the air inlet pipes at the top of the device main body. One side of the bottom end inside the device main body is provided with a burner, and a combustion chamber is arranged on one side of the burner inside the device main body. A catalyst bed is arranged above the combustion chamber inside the device main body. In the utility model, by setting a treatment box, the waste gas after catalytic combustion treatment is introduced into the treatment box, and the waste gas comes into contact with the activated carbon layer in the treatment box. Under the action of the activated carbon layer, the remaining small amounts of harmful gases and odors in the waste gas can be removed. And under the action of the third fan, part of the waste gas in the treatment box enters the air inlet pipe again through the circulation pipe for secondary catalytic combustion treatment of the waste gas, and the treatment effect on the waste gas is more ideal.

[0004] In actual use, the circulation pipe cannot distinguish the uncompletely catalyzed waste gas from the catalyzed waste gas, resulting in some uncompletely catalyzed waste gas still being discharged from the air outlet.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above defects. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a catalytic combustion CO waste gas treatment device that can effectively solve the above technical problems.

[0007] To achieve the purpose of the utility model, the following technical scheme is adopted: a catalytic combustion CO waste gas treatment device, comprising: a box body, a catalytic component, a circulation component, and an exhaust component;

[0008] The circulation component includes: a first liquid storage tank, a second liquid storage tank fixedly installed on one side of the first liquid storage tank, an exhaust pipe fixedly installed at the top of the inner wall of the first liquid storage tank, a circulation pipe fixedly installed on the outer wall of the first liquid storage tank, a liquid suction pipe fixedly installed at the bottom of the inner wall of the first liquid storage tank close to the second liquid storage tank, a pump body fixedly connected to the other end of the liquid suction pipe, and circulation holes arranged in alignment on the inner walls of the first liquid storage tank and the second liquid storage tank.

[0009] Furthermore, the exhaust assembly includes: an exhaust port, a threaded cover threadedly installed on the top of the exhaust port, a piston slidably installed in the exhaust port, exhaust holes circumferentially arranged on the side surface of the piston, and ventilation holes circumferentially arranged at the bottom of the piston.

[0010] Furthermore, the position of the bottom of the exhaust pipe is higher than the top of the liquid suction pipe and the position of the circulation hole.

[0011] Furthermore, the solutions in the first liquid storage tank and the second liquid storage tank are sodium carbonate solutions.

[0012] Compared with the prior art, the present utility model has the following beneficial effects: For a catalytic combustion CO waste gas treatment device of the present utility model, the waste gas and the treated waste gas are introduced into a sodium carbonate solution. The waste gas enters the intake pipe through the circulation pipe. The treated waste gas is absorbed by the sodium carbonate solution to generate sodium bicarbonate. The pump body sucks the solution in the first liquid storage tank into the second liquid storage tank, and makes the solution in the second liquid storage tank enter the first liquid storage tank through the circulation hole. After being heated by the burner at the bottom of the second liquid storage tank, the sodium bicarbonate decomposes into sodium carbonate and the treated waste gas. The treated waste gas then pushes the piston and is discharged from the exhaust holes on the piston, enabling the sodium carbonate solutions in the first liquid storage tank and the second liquid storage tank to be recycled, separating the treated waste gas from the waste gas, and improving the waste gas treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 1 It is a schematic structural diagram of a catalytic combustion CO waste gas treatment device of the present utility model.

[0015] Figure 2 It is a schematic structural diagram of the catalytic component of the present utility model.

[0016] Figure 3 It is a schematic structural diagram of the circulation component of the present utility model.

[0017] Figure 4 For the present utility model Figure 2 is an enlarged schematic structural diagram of A in the present utility model.

[0018] In the figure: 101, box body; 102, air inlet; 103, treatment box; 104, intake pipe; 105, fan; 106, motor; 107, connecting pipe; 108, heat exchange box; 200, catalytic component; 201, burner; 202, spiral pipe; 203, partition board; 204, combustion chamber; 205, catalyst bed; 206, nozzle; 300, circulation component; 301, first liquid storage tank; 302, exhaust pipe; 303, circulation pipe; 304, circulation hole; 305, liquid suction pipe; 306, second liquid storage tank; 307, pump body; 400, exhaust component; 401, exhaust port; 402, threaded cap; 403, piston; 404, exhaust hole; 405, ventilation hole. Detailed implementation manners

[0019] In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present utility model, rather than all embodiments.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as limiting the protection scope of the present utility model. When a mechanism is referred to as being "fixed to" another mechanism, it can be directly on the other mechanism or there may also be an intermediate mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to the other mechanism or there may be an intermediate mechanism at the same time. When a mechanism is considered to be "arranged on" another mechanism, it can be directly arranged on the other mechanism or there may be an intermediate mechanism at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0021] As Figures 1 to 4As shown in the figure, a catalytic combustion CO waste gas treatment device of the present utility model includes: a box body 101, a catalytic component 200, a circulation component 300, and an exhaust component 400. A treatment box 103 is fixedly installed in an opening on one side of the box body 101. The treatment box 103 absorbs and treats the odor and a small amount of acidic gas in the waste gas. An air inlet 102 is fixedly installed at the top of the treatment box 103. One side of the treatment box 103 located inside the box body 101 is fixedly connected to an air inlet pipe 104. The other end of the air inlet pipe 104 is fixedly connected to a fan 105. The rotating shaft of the fan 105 is fixedly connected to the output end of a motor 106. The bottom of the fan 105 is fixedly connected to a connecting pipe 107.

[0022] The catalytic component 200 includes: a burner 201, the burner 201 is fixedly installed in an opening at the bottom on one side of the box body 101, a nozzle 206 fixedly installed at one end of the burner 201, a spiral pipe 202 arranged in the outer shell of the burner 201. One end of the spiral pipe 202 is fixedly connected to the connecting pipe 107, a partition 203 fixedly installed between the outer shell of the burner 201 and the inner wall of the box body 101. The space surrounded by the partition 203 and the inner wall of the box body 101 is a combustion chamber 204, a catalyst bed 205 horizontally fixedly installed on the partition 203, a heat exchange box 108 fixedly installed at the top of the partition 203. A water inlet pipe is fixedly installed at the bottom of one section of the heat exchange box 108, and a water outlet pipe is fixedly installed at the top of the other end. A spiral cooling pipe is fixedly installed inside the heat exchange box 108. One end of the spiral cooling pipe passes through the inner wall of the heat exchange box 108 and the partition 203 to communicate with the combustion chamber 204, and the other end passes through the inner wall of the heat exchange box 108.

[0023] The circulation component 300 includes: a first liquid storage tank 301 fixedly installed on the inner wall of the box body 101 and located at the bottom of the heat exchange tank 108; a second liquid storage tank 306 fixedly installed on one side of the first liquid storage tank 301, the second liquid storage tank 306 being fixedly installed in the opening on one side of the box body 101, and the bottom of the second liquid storage tank 306 being fixedly installed on the top of the burner 201; the solution in the first liquid storage tank 301 and the second liquid storage tank 306 being sodium carbonate solution; an exhaust pipe 302 fixedly installed at the top of the inner wall of the first liquid storage tank 301, the top of the exhaust pipe 302 being fixedly connected to one end of a spiral cooling pipe; a circulation pipe 303 fixedly installed on the outer wall of the first liquid storage tank 301, the other end of the circulation pipe 303 being fixedly connected to the intake pipe 104, the top of the circulation pipe 303 being higher than the liquid level in the first liquid storage tank 301; a liquid suction pipe 305 fixedly installed at the bottom on the side of the inner wall of the first liquid storage tank 301 close to the second liquid storage tank 306; a pump body 307 fixedly connected to the other end of the liquid suction pipe 305; and circulation holes 304 provided on the inner walls of the first liquid storage tank 301 and the second liquid storage tank 306 in alignment, the positions of the circulation holes 304 and the top of the liquid suction pipe 305 being lower than the position of the bottom of the exhaust pipe 302.

[0024] The exhaust component 400 includes: an exhaust port 401 fixedly installed on the top of the second liquid storage tank 306; a threaded cap 402 threadedly installed on the top of the exhaust port 401; a piston 403 slidably installed in the exhaust port 401, an exhaust groove being provided at the bottom of the piston 403, exhaust holes 404 being circumferentially provided on the side surface of the piston 403, the exhaust holes 404 communicating with the exhaust groove, and ventilation holes 405 being circumferentially provided at the bottom of the piston 403.

[0025] In the present utility model, the position of the bottom of the exhaust pipe 302 is higher than the positions of the top of the liquid suction pipe 305 and the circulation holes 304, so as to prevent the waste gas introduced into the first liquid storage tank 301 by the exhaust pipe 302 from entering the second liquid storage tank 306 through the circulation holes 304 or the liquid suction pipe 305; the solution in the first liquid storage tank 301 and the second liquid storage tank 306 is sodium carbonate solution, and the treated waste gas is composed of carbon dioxide and water. By using the reaction of sodium carbonate and carbon dioxide to form sodium bicarbonate, and the process of sodium bicarbonate decomposing into carbon dioxide and sodium carbonate upon heating, the waste gas and the treated waste gas are separated.

[0026] Working principle: Start the motor 106. The motor 106 drives the fan 105 to work. The fan 105 sucks the waste gas from the air inlet 102, removes the odorous gas and acidic gas in the waste gas through the treatment box 103. The waste gas then enters the spiral pipeline 202 through the air inlet pipe 104 and the connecting pipe 107 for heating, and then passes through the nozzle 206 for combustion heating to rapidly increase the temperature of the waste gas. The waste gas is catalyzed by the catalyst bed 205. Carbon dioxide and part of the waste gas enter the heat exchange box 108 for sufficient cooling. The waste gas and carbon dioxide are introduced into the sodium carbonate solution through the exhaust pipe 302. The waste gas enters the air inlet pipe 104 through the circulation pipe 303. The carbon dioxide is absorbed by the sodium carbonate solution. The pump body 307 sucks the solution in the first liquid storage tank 301 into the second liquid storage tank 306, and makes the solution in the second liquid storage tank 306 enter the first liquid storage tank 301 through the circulation hole 304. After being heated by the burner 201 at the bottom of the second liquid storage tank 306, the product absorbing carbon dioxide is decomposed into sodium carbonate and carbon dioxide. The carbon dioxide then pushes the piston 403 and is discharged from the exhaust hole 404 on the piston 403, so that the sodium carbonate solution in the first liquid storage tank 301 and the second liquid storage tank 306 can be recycled, separating the carbon dioxide and the waste gas and improving the treatment effect of the waste gas.

[0027] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt the conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt the conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0028] It should be understood that for those of ordinary skill in the art, improvements or changes can be made according to the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A catalytic combustion CO waste gas treatment device, characterized in that, Including: A box body (101), a catalytic component (200), a circulation component (300), and an exhaust component (400); The circulation component (300) includes: a first liquid storage tank (301), a second liquid storage tank (306) fixedly installed on one side of the first liquid storage tank (301), an exhaust pipe (302) fixedly installed at the top of the inner wall of the first liquid storage tank (301), a circulation pipe (303) fixedly installed on the outer wall of the first liquid storage tank (301), a liquid suction pipe (305) fixedly installed at the bottom of the inner wall of the first liquid storage tank (301) close to the second liquid storage tank (306), a pump body (307) fixedly connected to the other end of the liquid suction pipe (305), and circulation holes (304) provided on the inner walls of the first liquid storage tank (301) and the second liquid storage tank (306) in alignment.

2. The catalytic combustion CO waste gas treatment equipment according to claim 1, characterized in that, The exhaust component (400) includes: an exhaust port (401), a threaded cap (402) threadedly installed on the top of the exhaust port (401), a piston (403) slidably installed in the exhaust port (401), exhaust holes (404) circumferentially provided on the side surface of the piston (403), and ventilation holes (405) circumferentially provided at the bottom of the piston (403).

3. The catalytic combustion CO waste gas treatment equipment according to claim 1, characterized in that The position of the bottom of the exhaust pipe (302) is higher than the positions of the top of the liquid suction pipe (305) and the circulation holes (304).

4. The catalytic combustion CO waste gas treatment equipment according to claim 1, characterized in that, The solution in the first liquid storage tank (301) and the second liquid storage tank (306) is a sodium carbonate solution.

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