Device for treating high-temperature oil-containing flue gas difficult to ignite

Abstract

The utility model discloses a difficult-to-ignite high-temperature oily flue gas treatment device, which comprises a suction hood, an exhaust fan, a spray tower, a water tank, a filter tank and an exhaust pipe, the suction hood is connected with the air inlet end of the exhaust fan through a pipeline, the air outlet end of the exhaust fan is connected with a first connecting pipe, the tail end of the first connecting pipe is connected with the middle lower part of the spray tower, and the spray tower is connected with the water tank. The lower end of the spray tower extends into the water tank, water in the water tank submerges the lower end of the spray tower, the top end of the spray tower is connected with a second connecting pipe, the tail end of the second connecting pipe is connected with the filter tank, a partition net is arranged in the filter tank, and the interior of the filter tank is divided into a first cavity and a second cavity by the partition net; the first cavity and the second cavity are communicated through meshes of the separation net; according to the high-temperature oil-containing flue gas treatment device, the spray tower and the filter box are matched, so that high-temperature oil-containing flue gas can be effectively treated, the treatment efficiency is high, a fire catching phenomenon is not easy to occur, and the high-temperature oil-containing flue gas treatment is safer and more reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment, and in particular to the technical field of high-temperature oily flue gas treatment devices. Background Technology

[0002] Some heat treatment processes generate high-temperature oily fumes. These fumes are usually drawn in by equipment such as fans and then treated electrostatically. Since electrostatic discharge is high-voltage static electricity, and the fumes themselves are relatively hot and contain oil, they are easily ignited when the oil accumulates to a certain level, which can lead to fire accidents. This not only affects production safety but also poses a threat to production personnel. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the prior art and to propose a high-temperature oily flue gas treatment device that is not easily ignited, which can effectively treat high-temperature oily flue gas and prevent fires.

[0004] To achieve the above objectives, this utility model proposes a high-temperature oily fume treatment device that is not easily ignited, comprising an air intake hood, an exhaust fan, a spray tower, a water tank, a filter box, and an exhaust pipe. The air intake hood is connected to the air inlet of the exhaust fan via a pipe, and the air outlet of the exhaust fan is connected to a first connecting pipe. The end of the first connecting pipe is connected to the lower middle part of the spray tower, and the lower end of the spray tower extends into the water tank, with the water in the tank covering the lower end of the spray tower. The top of the spray tower is connected to a second connecting pipe, and the end of the second connecting pipe is connected to the filter box. The filter box is equipped with a partition mesh that divides the interior of the filter box into a first cavity and a second cavity, which are connected through the mesh openings of the partition mesh. A third connecting pipe is connected to the filter box, and the end of the third connecting pipe is connected to the exhaust pipe. The first cavity is connected to the second connecting pipe and contains absorbent cotton. The second cavity is connected to the third connecting pipe and contains activated carbon.

[0005] Preferably, an inlet pipe is installed inside the water tank, which is connected to a water pump that provides spray water to the spray tower. A float valve is installed on the inlet pipe, with the float of the float valve located inside the water tank and higher than the lower end of the spray tower.

[0006] A wastewater discharge pipe with a valve is installed at the bottom of the water tank.

[0007] Preferably, the second and third connecting pipes are located on opposite sides of the filter box, and the separator is set vertically.

[0008] Preferably, both the first cavity and the second cavity are provided with openable inspection doors on their side walls.

[0009] Preferably, the exhaust pipe is vertically arranged, the third connecting pipe is fixed in the lower middle part of the exhaust pipe, and the bottom end of the exhaust pipe is sealed.

[0010] The beneficial effects of this utility model are as follows: By combining the spray tower and the filter box, this utility model can effectively treat high-temperature oily flue gas. It not only has high treatment efficiency, but also makes it less prone to ignition, making the treatment of high-temperature oily flue gas safer and more reliable.

[0011] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a front view of the high-temperature oily flue gas treatment device that is not easily ignited according to this utility model;

[0013] In the diagram: 1-Exhaust fan, 2-Spray tower, 3-Filter box, 4-Exhaust pipe, 10-First connecting pipe, 15-Suction hood, 20-Second connecting pipe, 21-Water tank, 22-Inlet pipe, 23-Float valve, 25-Wastewater discharge pipe, 30-Third connecting pipe, 31-First cavity, 32-Second cavity, 35-Separation net, 36-Inspection door. Detailed Implementation

[0014] See Figure 1 This utility model discloses a high-temperature oily fume treatment device that is not easily ignited, comprising an air intake hood 15, an exhaust fan 1, a spray tower 2, a water tank 21, a filter box 3, and an exhaust pipe 4. The air intake hood 15 is connected to the air inlet of the exhaust fan 1 via a pipeline. The air outlet of the exhaust fan 1 is connected to a first connecting pipe 10. The end of the first connecting pipe 10 is connected to the lower middle part of the spray tower 2. The lower end of the spray tower 2 extends into the water tank 21, and the water in the water tank 21 covers the lower end of the spray tower 2. The upper end of the water tank 21 is open. The top of the spray tower 2 is connected to a second connecting pipe 20. The end of the 20 is connected to the filter box 3. The filter box 3 is provided with a partition net 35, which divides the interior of the filter box 3 into a first cavity 31 and a second cavity 32. The first cavity 31 and the second cavity 32 are connected through the mesh of the partition net 35. A third connecting pipe 30 is connected to the filter box 3. The end of the third connecting pipe 30 is connected to the exhaust pipe 4. The first cavity 31 is connected to the second connecting pipe 20. The first cavity 31 is filled with absorbent cotton. The second cavity 32 is connected to the third connecting pipe 30. The second cavity 32 is filled with activated carbon.

[0015] In order to enable the water used for spraying to be recycled, a water inlet pipe 22 is installed inside the water tank 21, and the water inlet pipe 22 is connected to the water pump that provides spraying water to the spraying tower.

[0016] To prevent excessive water loss from the water tank 21, which could prevent a water seal from forming at the bottom of the spray tower 2, a float valve 23 is installed on the water inlet pipe 22. The float of the float valve 23 is located inside the water tank 21, and the float of the float valve 23 is higher than the bottom of the spray tower 2.

[0017] To facilitate the complete discharge of wastewater from the water tank 21, a wastewater discharge pipe 25 with a valve is installed at the bottom of the water tank 21.

[0018] In order to allow the flue gas to come into contact with the adsorption cotton and activated carbon as much as possible, the second connecting pipe 20 and the third connecting pipe 30 are located on opposite sides of the filter box 3, and the partition net 35 is set vertically.

[0019] To facilitate the replacement of the absorbent cotton and activated carbon, both the first cavity 31 and the second cavity 32 are provided with openable inspection doors 36.

[0020] The exhaust pipe 4 is vertically arranged, and the third connecting pipe 30 is fixed in the lower middle part of the exhaust pipe 4, and the bottom end of the exhaust pipe 4 is sealed.

[0021] The working process of this utility model:

[0022] In operation, the high-temperature oily flue gas treatment device of this utility model, which is not easily ignited, draws in the high-temperature oily flue gas through the suction hood 15 and sends it to the spray tower 2. The flue gas can be fully cooled, and some oil and particulate matter will mix into the water. Since the oil is lighter than water, it will eventually float to the surface of the water in the water tank 1. After being sprayed, the flue gas enters the filter box 3 for filtration. The absorbent cotton can effectively remove the oil and particulate matter in the flue gas, and the activated carbon can absorb the odor in the flue gas. Finally, the flue gas enters the exhaust pipe 4 through the third connecting pipe 3 and is finally discharged into the atmosphere through the exhaust pipe 4.

[0023] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A high-temperature oily fume treatment device that is not easily ignited, characterized in that: The system includes an air intake hood (15), an exhaust fan (1), a spray tower (2), a water tank (21), a filter box (3), and an exhaust pipe (4). The air intake hood (15) is connected to the air inlet of the exhaust fan (1) via a pipe. The air outlet of the exhaust fan (1) is connected to a first connecting pipe (10). The end of the first connecting pipe (10) is connected to the lower middle part of the spray tower (2). The lower end of the spray tower (2) extends into the water tank (21), and the water in the water tank (21) covers the lower end of the spray tower (2). The top of the spray tower (2) is connected to a second connecting pipe (20), and the end of the second connecting pipe (20) is connected to the filter box (3). The filter box (3) is provided with a partition net (35) inside, which divides the filter box (3) into a first cavity (31) and a second cavity (32). The first cavity (31) and the second cavity (32) are connected through the mesh of the partition net (35). A third connecting pipe (30) is connected to the filter box (3). The end of the third connecting pipe (30) is connected to the exhaust pipe (4). The first cavity (31) is connected to the second connecting pipe (20). The first cavity (31) is filled with absorbent cotton. The second cavity (32) is connected to the third connecting pipe (30). The second cavity (32) is filled with activated carbon.

2. The high-temperature oily flue gas treatment device that is not easily ignited as described in claim 1, characterized in that: A water inlet pipe (22) is installed inside the water tank (21). The water inlet pipe (22) is connected to a water pump that provides spray water to the spray tower. A float valve (23) is installed on the water inlet pipe (22). The float of the float valve (23) is located inside the water tank (21). The float of the float valve (23) is higher than the lower end of the spray tower (2).

3. The high-temperature oily flue gas treatment device that is not easily ignited as described in claim 1, characterized in that: A wastewater discharge pipe (25) with a valve is installed at the bottom of the water tank (21).

4. The high-temperature oily flue gas treatment device that is not easily ignited as described in claim 1, characterized in that: The second connecting pipe (20) and the third connecting pipe (30) are located on opposite sides of the filter box (3), and the partition net (35) is set vertically.

5. The high-temperature oily flue gas treatment device that is not easily ignited as described in claim 1, characterized in that: Both the first cavity (31) and the second cavity (32) are provided with openable inspection doors (36) on their side walls.

6. The high-temperature oily flue gas treatment device that is not easily ignited as described in claim 1, characterized in that: The exhaust pipe (4) is set vertically, and the third connecting pipe (30) is fixed in the middle and lower part of the exhaust pipe (4). The bottom end of the exhaust pipe (4) is sealed.

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