CN218209573U

CN218209573U - Soil pollution restores tail gas treatment system

Info

Publication number: CN218209573U
Application number: CN202221006705.0U
Authority: CN
Inventors: 李贵; 张惠彬; 刘亮; 刘明; 陈焦; 任昌顺; 殷宏
Original assignee: Jiangsu Geology & Engineering Co ltd
Current assignee: Jiangsu Geology & Engineering Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2023-01-03
Anticipated expiration: 2032-04-28

Abstract

The utility model provides a soil pollution remediation tail gas processing system, it contains condensing jar and catalytic combustion furnace, and gas outlet one in the condensing jar and catalytic combustion furnace's air inlet two-way pipeline lug connection, wherein condensing jar central authorities run through the condenser pipe that has a spiral shell screwing in rose glass to make, be fixed with the finned heating pipe on the catalytic combustion furnace inner wall, the finned heating pipe all is provided with the catalysis bed from top to bottom, a plurality of sprinkler heads are installed to catalytic combustion furnace's casing top inner wall. The condensing pipe of the utility model is spiral, the contact area of the gas and the condensate is large, and the condensing efficiency is high; the catalytic combustion furnace is provided with two catalytic beds, the heating pipe is clamped between the two catalytic beds, the contact area of gas and the catalyst and the heating pipe is increased, and the catalytic combustion efficiency is effectively improved.

Description

Soil pollution restores tail gas treatment system

Technical Field

The utility model belongs to the technical field of soil remediation, concretely relates to soil pollution restores tail gas treatment system.

Background

The soil remediation technology is to separate organic pollutants from solid, convert part of the organic pollutants into solid phase and liquid phase, and convert part of the organic pollutants into gas phase. The volatile gas phase poses serious hazards to environmental quality, animal and plant growth and human health, and therefore the tail gas needs to be further treated. In recent years, common treatment methods for organic pollutant tail gas in domestic and foreign engineering practice include an adsorption method, a combustion method and a condensation method. The tail gas treatment system in the prior art has a single structure, the combustion furnace has low catalytic efficiency, open fire combustion may occur under the condition of insufficient catalysis, and hidden dangers exist for equipment and operators.

Disclosure of Invention

In order to solve the problem, the utility model discloses a soil pollution restores tail gas treatment system to overcome not enough among the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a tail gas treatment system for soil pollution remediation comprises a condensation tank and a catalytic combustion furnace, wherein a first gas outlet in the condensation tank is directly connected with a second gas inlet of the catalytic combustion furnace through a pipeline, a condensation pipe made of spirally-rising glass penetrates through the center of the condensation tank, a finned heating pipe is fixed on the inner wall of the catalytic combustion furnace, catalytic beds are arranged above and below the finned heating pipe, and a plurality of spray heads are mounted on the inner wall of the top of a shell of the catalytic combustion furnace.

As an improvement of the utility model, the sprinkler head is filled with foam and dry powder, and every sprinkler head all is connected with temperature sensor and optical sensor electricity.

As an improvement of the utility model, catalytic combustion furnace's air inlet is two to be located the casing lateral wall top, and gas outlet two is located the casing lateral wall below relative with air inlet two, air inlet two all is provided with the activated carbon box with gas outlet two on shells inner wall, and every catalysis bed frame has been inserted a baffle on every objective table perpendicularly on two objective tables that stretch out with ground parallel, and the distance between two objective tables is less than the length of catalysis bed, and the distance between two baffles is greater than or equal to the length of catalysis bed.

As an improvement of the present invention, 2-4 stirring paddles are fixed on the inner wall of the shell, and each stirring paddle is located below the catalytic bed below the fin-type heating tube.

As an improvement of the utility model, a filter screen made of one layer of iron wire is fixed on the inner wall of the shell below the stirring paddle.

As an improvement of the utility model, the casing bottom is provided with pull formula garbage collection steamer tray, and the one end of garbage collection steamer tray is provided with the handle, and the casing top is provided with the tonifying qi mouth, the air inlet is two to be located between filter screen and the garbage collection steamer tray.

As an improvement of the utility model, the overhead side in condensing tank left side is provided with the inlet, and the liquid outlet setting is in the position with the inlet symmetry, and air inlet one sets up in condenser pipe below inlet department, and gas outlet one sets up in condenser pipe top exit, and air inlet one and gas outlet one all are provided with control switch's valve.

The utility model has the advantages that:

1. the condensing pipe is spiral, the contact area of gas and condensate is large, and the condensing efficiency is high;

2. the catalytic combustion furnace is provided with two catalytic beds, the heating pipe is clamped between the two catalytic beds, the contact area of gas with the catalyst and the heating pipe is increased, and the catalytic combustion efficiency is effectively improved;

3. the top side of the inner wall of the shell of the catalytic combustion furnace is provided with the sprinkler head, and the sprinkler head is attached to the inner wall of the shell of the catalytic combustion furnace, so that the sprinkler head can be triggered in time when dangerous conditions such as open fire occur in equipment to spray the fire extinguishing agent, and further guarantee is provided for the safety of a system and workers.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective elevation view of a soil remediation exhaust treatment system.

List of reference symbols:

1. a condensing tank; 2. a catalytic combustion furnace; 101. a liquid inlet; 102. a liquid outlet; 103. a first air inlet; 104. a condenser tube; 105. a first air outlet; 201. a housing; 202. a second air inlet; 203. a second air outlet; 204. a sprinkler head; 205. an object stage; 206. a baffle plate; 207. a finned heating tube; 208. a stirring paddle; 209. a filter screen; 210. a waste collection drawer; 211. a handle; 212. an air supplement port.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and embodiments, which are to be understood as illustrative only and not limiting the scope of the invention.

As shown in figure 1, the utility model provides a soil pollution restores tail gas treatment system. In the embodiment of the present invention, the condensing tank 1 and the catalytic combustion furnace 2 cooperate with each other to form a tail gas treatment system. Firstly, condensate is put into the condensing tank from the liquid inlet 101, meanwhile, a valve at the air inlet 103 is opened, tail gas after soil pollution remediation enters the condensing tank 1 from the air inlet 103, and passes through the condensing pipe 104 from bottom to top under the action of the pump. The condensation pipe 104 is made of glass and is in a spiral rising shape, and aims to increase the contact area of gas and condensate and improve the condensation efficiency. In the condensation process, the condensed substance only changes physically but does not change chemically, so that the condensed substance can be directly recycled. The condensed gas flows out from the first gas outlet 105, the valve is opened, the tail gas subjected to condensation pretreatment enters the catalytic combustion furnace 2 from the second gas inlet 202, and the tail gas firstly passes through the activated carbon box to remove dust particles, so that the function of adsorbing impurities is achieved. The adsorbed tail gas passes through the first catalytic bed and then contacts the finned heating tube 207. The catalyst bed is packed with a noble metal catalyst, such as a platinum catalyst. There is a certain distance between the two object stages 205 so that a part of the catalyst bed is exposed below the catalyst bed, so that the contact area between the exhaust and the catalyst is larger, and the catalytic efficiency is improved as much as possible. The baffle 206 can limit the catalytic bed in the horizontal direction, so as to avoid the displacement of the catalytic bed and the danger of collision of components in the furnace. A catalytic bed is arranged below the finned heating pipe 207, so that the contact probability of the tail gas and the catalyst is increased. In catalytic combustion processes, the role of the catalyst is to reduce the activation energy while enriching the reactant molecules on the surface to increase the reaction rate. By means of the catalyst, the organic tail gas can be subjected to flameless combustion at a low ignition temperature, the decomposition temperature is usually between 200 and 250 ℃, and the organic tail gas is subjected to oxidative decomposition into water and carbon dioxide, so that the cycle is completed and the organic tail gas is discharged after reaching the standard. The catalytic combustion releases a large amount of heat energy at the same time, so that heat energy is provided for the subsequent catalytic combustion reaction, and the gas flow in the shell 201 is accelerated. The paddles 208 inside the shell 201 work on the inner wall, pushing the gas to flow, making the gas pass through the catalytic bed again, repeating the catalytic combustion process, making the catalytic combustion more complete. A filter screen 209 made of iron wires is arranged above the second air outlet 203 and used for filtering larger solid particles and avoiding large particles in the discharged air. Garbage collection steamer tray 210 is in casing 201 bottom, and the outer end is equipped with handle 211 for collect because of the impurity granule that gravity dropped, pulling handle 211 can pull out garbage collection steamer tray 210, makes it more convenient to empty the waste material granule. In the embodiment of the present invention, the top center of the casing 201 is provided with the air supplement port 212 to avoid explosion hazard caused by too high pressure or insufficient oxygen in the furnace. The spray heads 204 are filled with foam and dry powder, each spray head 204 is electrically connected with a temperature sensor and an optical sensor, and once open fire combustion in the furnace is detected, a switch is triggered to spray extinguishing agent to stop damage in time.

It should be noted that the above only illustrates the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and it will be apparent to those skilled in the art that various modifications and decorations can be made without departing from the principle of the present invention, and all of these modifications and decorations fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a soil pollution restores tail gas processing system which characterized in that: contain condensing cylinder (1) and catalytic combustion stove (2), gas outlet (105) in condensing cylinder (1) and the second (202) of air inlet of catalytic combustion stove (2) pass through pipeline lug connection, wherein condensing cylinder (1) central authorities have run through condenser pipe (104) that a spiral shell rises glass made, be fixed with finned heating pipe (207) on catalytic combustion stove (2) inner wall, finned heating pipe (207) all are provided with the catalytic bed from top to bottom, a plurality of sprinkler heads (204) are installed to casing (201) top inner wall of catalytic combustion stove (2).

2. The soil pollution remediation tail gas treatment system of claim 1, wherein: the interior of the spray heads (204) is filled with foam and dry powder, and each spray head (204) is electrically connected with a temperature sensor and an optical sensor.

3. The soil pollution remediation tail gas treatment system of claim 1, wherein: a second air inlet (202) of the catalytic combustion furnace (2) is located above the side wall of the shell (201), a second air outlet (203) is located below the side wall of the shell (201) opposite to the second air inlet (202), the second air inlet (202) and the second air outlet (203) are provided with activated carbon boxes on the inner wall of the shell (201), each catalytic bed is erected on two object carrying platforms (205) which extend out of the inner wall of the shell (201) and are parallel to the ground, a baffle plate (206) is vertically inserted in each object carrying platform (205), the distance between the two object carrying platforms (205) is less than the length of the catalytic bed, and the distance between the two baffle plates (206) is more than or equal to the length of the catalytic bed.

4. The soil pollution remediation tail gas treatment system of claim 1, wherein: 2-4 stirring paddles (208) are fixed on the inner wall of the shell (201), and each stirring paddle (208) is positioned below a catalytic bed below the finned heating tube (207).

5. The soil pollution remediation tail gas treatment system of claim 4, wherein: a filter screen (209) made of a layer of iron wires is arranged below the stirring paddle (208) and fixed on the inner wall of the shell (201).

6. The soil pollution remediation tail gas treatment system of claim 1, wherein: the novel garbage can is characterized in that a drawing type garbage collection drawer (210) is arranged at the bottom of the shell (201), a handle (211) is arranged at one end of the garbage collection drawer (210), an air supplementing opening (212) is formed in the top of the shell (201), and the air inlet II (202) is located between the filter screen (209) and the garbage collection drawer (210).

7. The soil pollution remediation tail gas treatment system of claim 1, wherein: a liquid inlet (101) is formed in the upper left of the condensing tank (1), a liquid outlet (102) is formed in a position symmetrical to the liquid inlet (101), a first air inlet (103) is formed in an inlet below the condensing pipe (104), a first air outlet (105) is formed in an outlet above the condensing pipe (104), and valves of control switches are arranged on the first air inlet (103) and the first air outlet (105).