CN210206399U

CN210206399U - VOC exhaust purification processing apparatus

Info

Publication number: CN210206399U
Application number: CN201920836578.9U
Authority: CN
Inventors: Xianzhong Wang; 王献忠
Original assignee: Pingxiang University
Current assignee: Pingxiang University
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-03-31
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a VOC waste gas purification treatment device, which belongs to the technical field of VOC treatment, and comprises a resistance furnace, wherein the resistance furnace comprises a furnace body and a furnace chamber, the bottom and the top of the furnace body are respectively provided with an air inlet pipe and an air outlet pipe, a resistance wire is arranged in the furnace chamber, the resistance wire is arranged in the furnace chamber in a layered manner from top to bottom, porous ceramics are filled between the multilayer resistance wires, the other end of the air outlet pipe is communicated with a carbon dioxide absorption pool, and a carbon dioxide absorbent is arranged in the carbon dioxide absorption pool; the utility model discloses can guarantee that VOC gas can burn fully, and the carbon dioxide gas that produces after the burning further arranges to the carbon dioxide absorption cell and absorbs the processing, can reduce carbon dioxide's emission, is favorable to the sustainable development of environment.

Description

VOC exhaust purification processing apparatus

Technical Field

The utility model belongs to the technical field of exhaust-gas treatment device, concretely relates to VOC exhaust purification processing apparatus.

Background

VOC substances are volatile organic substances, but the definition in the environmental sense is an active class of volatile organic substances, i.e. the class of volatile organic substances that can cause harm. When the VOC reaches a certain concentration, people can feel headache, nausea, vomit, hypodynamia and the like in a short time, and can be convulsion and coma in severe cases, and the liver, the kidney, the brain and the nervous system of people can be injured, so that serious consequences such as hypomnesis are caused. At present, the following methods are mainly used for treating VOC waste gas: combustion, activated carbon adsorption, spraying, photo-oxidation and biological treatment, wherein the heat treatment efficiency of the organic waste gas is relatively high by the combustion treatment method, and can reach 99 percent in general, the combustion method uses a device which is generally modified by a conventional electric resistance furnace, and is provided with vent pipes above and below the electric resistance furnace, but the method has the following defects: (1) the VOC velocity through the resistance furnace is too fast, which can cause the unburned VOC waste gas to be discharged into the atmosphere; (2) the products of the combustion of the VOC waste gas are carbon dioxide and water, and although the VOC is converted into carbon dioxide gas after the combustion, the carbon dioxide gas is greenhouse gas, and excessive emission is not beneficial to the sustainable development of the environment and the climate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a VOC exhaust purification processing apparatus has solved foretell problem.

The utility model discloses the technical scheme who adopts is, a VOC exhaust purification processing apparatus, including resistance furnace, resistance furnace includes furnace body and furnace chamber, furnace body bottom and top are equipped with intake pipe and outlet duct respectively, intake pipe one side intercommunication has air intake branch, the last one-way admission valve that is equipped with of air intake branch, the first gas distribution dish of furnace body bottom and fixedly connected with is passed at the intake pipe top, a plurality of first gas distribution holes have evenly been seted up at first gas distribution dish top, be equipped with the resistance wire in the furnace chamber, the resistance wire is in top-down is the stratiform and arranges, and the multilayer it has porous ceramic to fill between the resistance wire, the outlet duct other end and carbon dioxide absorption tank intercommunication, be equipped with the carbon dioxide absorbent in the carbon dioxide absorption tank.

Preferably, a first metal mesh plate and a second metal mesh plate are arranged above and below the furnace chamber, a plurality of connecting rods are arranged between the first metal mesh plate and the second metal mesh plate from top to bottom, and resistance wires are wound on the connecting rods.

Preferably, one end of the air outlet pipe, which is positioned at the bottom of the carbon dioxide absorption tank, is provided with a second air distribution disc, and a plurality of second air distribution holes are uniformly formed in the bottom of the second air distribution disc.

Preferably, the carbon dioxide absorption tank is of an open-top structure.

Preferably, the carbon dioxide absorbent is a sodium hydroxide solution.

The utility model has the advantages that: the utility model discloses arrange the resistance wire in the furnace chamber in traditional resistance furnace, and the furnace chamber intussuseption is filled with porous ceramic for the VOC waste gas that gets into the furnace chamber by resistance furnace bottom can fully contact with the resistance wire, and porous ceramic can reduce the flow velocity of VOC waste gas, has guaranteed that VOC gas can burn fully, and the carbon dioxide gas that produces after the burning is further arranged to the carbon dioxide absorption cell and absorbs the processing, can reduce carbon dioxide's emission, is favorable to the sustainable development of environment.

Drawings

Fig. 1 is a schematic structural view of a VOC exhaust purification treatment device provided by the present invention;

FIG. 2 is a schematic view of the resistance wire structure of FIG. 1;

FIG. 3 is a top schematic view of the first gas distribution plate of FIG. 1;

fig. 4 is a detailed structural diagram of the bottom of the second gas distribution plate in fig. 1.

Description of reference numerals:

1. the device comprises a resistance furnace, 11, a furnace body, 12, a furnace chamber, 13, an air inlet pipe, 14, an air outlet pipe, 15, an air inlet branch pipe, 151 a one-way air inlet valve, 16, a first air distribution disc, 161, a first air distribution hole, 2, a second metal mesh plate, 3, a first metal mesh plate, 4, a connecting rod, 5, a resistance wire, 6, porous ceramic, 7, a carbon dioxide absorption pool, 71, a second air distribution disc, 72, a second air distribution hole, 8 and a carbon dioxide absorbent.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

A VOC waste gas purification treatment device is shown in figure 1 and comprises a resistance furnace 1, wherein the resistance furnace 1 comprises a furnace body 11 and a furnace chamber 12, the resistance furnace 1 can be selected from a common box-type resistance furnace at present, and is modified from the existing resistance furnace, and the modification is characterized in that an air inlet pipe 13 and an air outlet pipe 14 are respectively arranged at the bottom and the top of the furnace body 11, one side of the air inlet pipe 13 is communicated with an air inlet branch pipe 15, the air inlet branch pipe 15 is provided with a one-way air inlet valve 151, the air inlet pipe 13 is used for conveying VOC gas into the furnace chamber 12, the air inlet branch pipe 15 is used for conveying air into the furnace chamber 12, the air enters the air inlet pipe 13 through the air inlet branch pipe 15 and is mixed with the VOC gas so as to be combusted by the VOC gas, the one-way air inlet valve 151 enables the gas to enter the air inlet pipe 13 only through the air inlet branch pipe 15, as shown in fig. 3, a plurality of first air distribution holes 161 are uniformly formed in the top of the first air distribution disc 16, the first air distribution holes 161 can enable air entering the furnace chamber 12 from the air inlet pipe 13 to uniformly and slowly enter the upper layer for combustion, a first metal mesh plate 3 and a second metal mesh plate 2 are respectively arranged above and below the furnace chamber 12, a plurality of connecting rods 4 are fixedly connected between the first metal mesh plate 3 and the second metal mesh plate 2 from top to bottom, as shown in fig. 2, a plurality of resistance wires 5 are wound on the connecting rods 4, the resistance wires 5 are designed in a multilayer manner so that the VOC gas can be fully contacted with the resistance wires 5, the VOC gas is uniformly heated and is beneficial to full combustion, porous ceramics 6 are filled among the plurality of resistance wires 5, the porous ceramics 6 can increase the path of the VOC passing through the furnace chamber 12, the speed of the VOC gas passing through the furnace chamber 12 is reduced, and the VOC gas and the resistance wires 5, fully burn, the outlet duct 14 other end and carbon dioxide absorption cell 7 intercommunication, carbon dioxide absorption cell 7 is the open structure in top, outlet duct 14 is located carbon dioxide absorption cell 7 bottom one end is equipped with second gas distribution dish 71, as shown in fig. 4, a plurality of second gas distribution holes 72 have evenly been seted up to second gas distribution dish 71 bottom, can guarantee that the carbon dioxide that produces after the burning can slowly and evenly get into in carbon dioxide absorption cell 7, guaranteed the abundant absorption of carbon dioxide, be equipped with carbon dioxide absorbent 8 in the carbon dioxide absorption cell 7, carbon dioxide absorbent 8 is sodium hydroxide solution, and carbon dioxide and sodium hydroxide reaction generate sodium carbonate, along with the increase of carbon dioxide, further produce sodium bicarbonate, and the resultant can be used to chemical production, has realized the conversion utilization of carbon dioxide.

The generated VOC gas enters the furnace chamber 12 through the gas inlet pipe 13, sequentially passes through the porous ceramics 6 from bottom to top and is fully combusted under the action of the resistance wire 5, and the carbon dioxide gas generated after combustion enters the carbon dioxide absorption tank 7 through the gas outlet pipe 14 and is fully absorbed by the carbon dioxide absorbent 8 to realize conversion; the utility model discloses arrange the resistance wire in the furnace chamber in traditional resistance furnace, and the furnace chamber intussuseption is filled with porous ceramic for the VOC waste gas that gets into the furnace chamber by resistance furnace bottom can fully contact with the resistance wire, and porous ceramic can reduce the flow velocity of VOC waste gas, has guaranteed that VOC gas can burn fully, and the carbon dioxide gas that produces after the burning is further arranged to the carbon dioxide absorption cell and absorbs the processing, can reduce carbon dioxide's emission, is favorable to the sustainable development of environment.

The above disclosure is only for the specific embodiments of the present invention, however, the embodiments of the present invention are not limited thereto, and any changes that can be considered by those skilled in the art should fall into the protection scope of the present invention.

Claims

1. The VOC waste gas purification treatment device is characterized by comprising a resistance furnace (1), wherein the resistance furnace (1) comprises a furnace body (11) and a furnace chamber (12), an air inlet pipe (13) and an air outlet pipe (14) are respectively arranged at the bottom and the top of the furnace body (11), one side of the air inlet pipe (13) is communicated with an air inlet branch pipe (15), a one-way air inlet valve (151) is arranged on the air inlet branch pipe (15), the top of the air inlet pipe (13) penetrates through the bottom of the furnace body (11) and is fixedly connected with a first air distribution disc (16), a plurality of first air distribution holes (161) are uniformly formed in the top of the first air distribution disc (16), a resistance wire (5) is arranged in the furnace chamber (12), the resistance wires (5) are arranged in a layered manner from top to bottom in the furnace chamber (12), a plurality of layers of resistance wires (5) are filled with porous ceramics (6), and the other, a carbon dioxide absorbent (8) is arranged in the carbon dioxide absorption pool (7).

2. The VOC waste gas purification treatment device according to claim 1, characterized in that a first metal mesh plate (3) and a second metal mesh plate (2) are respectively and fixedly connected to the upper part and the lower part in the furnace chamber (12), a plurality of connecting rods (4) are arranged between the first metal mesh plate (3) and the second metal mesh plate (2) from top to bottom, and resistance wires (5) are wound on the plurality of connecting rods (4).

3. The VOC waste gas purification treatment device of claim 1, wherein one end of the outlet pipe (14) positioned at the bottom of the carbon dioxide absorption tank (7) is fixedly connected with a second gas distribution plate (71), and a plurality of second gas distribution holes (72) are uniformly formed in the bottom of the second gas distribution plate (71).

4. The VOC exhaust gas purification treatment device according to claim 1, wherein the carbon dioxide absorption cell (7) has an open top structure.

5. The VOC exhaust gas purification treatment apparatus according to claim 1, wherein the carbon dioxide absorbent (8) is a sodium hydroxide solution.