Environment-friendly tail gas treatment device for metal heat treatment furnace

Abstract

The utility model discloses a metal heat treatment furnace tail gas environment-friendly treatment device which comprises an outer box, a treatment box is arranged in the outer box, a gas filtering layer is arranged on the inner side of the treatment box, a plurality of cooling fins are arranged on the outer side of the treatment box, the outer box is filled with cold water, a gas inlet pipe is arranged on one side of the bottom of the treatment box, and a filtering box is arranged on the gas inlet pipe. According to the device, cold water is added into the outer box, heat of tail gas on the inner side is absorbed through the treatment box, the heat of the tail gas is evenly shared through a plurality of cooling fins, the cooling fins are rapidly cooled through the cold water on the inner side, the cooling effect is improved, and the cooling effect is improved. And water in the outer box is pumped through a water pump and conveyed to a spraying head, the spraying head is used for spraying a gas filtering layer, and therefore the using effect of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of metal heat treatment, in particular to an environmentally friendly treatment device for tail gas from a metal heat treatment furnace. Background Art

[0002] Metal heat treatment is a process of heating a metal or alloy workpiece to a suitable temperature in a certain medium, keeping it at this temperature for a certain period of time, and then cooling it at different speeds in different media to control its performance by changing the surface or internal microstructure of the metal material. Metal heat treatment is usually carried out through a metal heat treatment furnace. When a metal heat treatment furnace is used, exhaust gas is generated. The exhaust gas contains a large amount of harmful substances and needs to be treated, otherwise it will affect the ecological environment and health.

[0003] Existing exhaust gas environmental protection treatment devices can usually only filter harmful chemical substances in exhaust gas and discharge them into the atmosphere after filtration. However, the temperature of exhaust gas is relatively high when it is discharged, and the existing exhaust gas environmental protection treatment devices cannot cool it down, which will also have a certain impact on the environment and may also affect the use of the device. Utility Model Content

[0004] The purpose of the utility model is to provide an environmental protection treatment device for tail gas of a metal heat treatment furnace to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for environmentally friendly treatment of exhaust gas from a metal heat treatment furnace comprises an outer box, a treatment box is arranged inside the outer box, a gas filter layer is arranged inside the treatment box, a plurality of heat sinks are arranged outside the treatment box, the outer box is filled with cold water, an air inlet pipe is arranged on one side of the bottom of the treatment box, a filter box is arranged on the air inlet pipe, a filter screen is arranged inside the filter box, a water pump is arranged on one side of the outer box, the water pumping point of the water pump is connected to the inner side of the outer box, a spray head is arranged on the top of the gas filter layer, the water outlet of the water pump passes through the outer box and the treatment box, and the water outlet of the water pump is connected to the spray head, and an exhaust port is arranged on the top of the treatment box.

[0007] In a preferred embodiment of the present invention, a transparent observation window is provided on one side of the outer box, and a temperature detector is provided on the inner side of the bottom of the outer box.

[0008] In a preferred embodiment of the present utility model, a water inlet is provided on one side of the top of the outer box, and a breathable net is provided on the top of the outer box.

[0009] In a preferred embodiment of the present utility model, a closing plate is provided on one side of the filter box.

[0010] In a preferred embodiment of the utility model, connecting strips are arranged on both sides of the closing plate, connecting grooves are arranged on both sides inside the filter box, and the connecting strips are slidably connected to the connecting grooves.

[0011] In a preferred embodiment of the present utility model, a drain pipe is provided at the bottom of the processing box, and a drain port is provided at one side of the bottom of the outer box.

[0012] In a preferred embodiment of the present utility model, a support base is provided below the outer box, a support column is provided on the support base, and the support column is connected to the bottom of the outer box.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0014] Beneficial effects: The device blocks the impurities contained in the exhaust gas through the filter net, thereby blocking the solid impurities, and filters the exhaust gas through the gas filter layer inside the treatment box. By adding cold water to the inside of the outer box, the heat of the exhaust gas inside is absorbed by the treatment box, and the heat is evenly distributed through multiple heat sinks. The heat sink is quickly cooled by the cold water inside, thereby reducing the temperature of the exhaust gas inside, so that it can be discharged at low temperature, making it more environmentally friendly. The water inside the outer box is extracted by a water pump and transported to the spray head, and the gas filter layer is sprayed by the spray head to ensure its use effect.

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the main structure of an environmental protection device for tail gas from a metal heat treatment furnace;

[0018] Figure 2 This is a schematic diagram of the inner structure of an outer box in an environmental protection treatment device for tail gas from a metal heat treatment furnace;

[0019] Figure 3 This is a schematic diagram of the inner structure of a treatment box in an environmental protection treatment device for tail gas from a metal heat treatment furnace;

[0020] Figure 4This is a schematic diagram of the filter box structure in an environmental protection treatment device for tail gas from a metal heat treatment furnace.

[0021] In the figure: 1. outer box; 11. transparent observation window; 12. breathable net; 13. temperature detector; 14. water inlet; 2. treatment box; 21. air inlet pipe; 22. heat sink; 23. exhaust port; 24. gas filter layer; 3. filter box; 31. closing plate; 32. connecting strip; 33. filter net; 34. connecting groove; 4. water pump; 41. sprinkler head; 42. drain pipe; 43. drain port; 44. support seat; 45. support column. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] Please refer to Figure 1-4 The utility model discloses an environmental protection treatment device for tail gas from a metal heat treatment furnace, comprising an outer box 1. The outer box 1 is used as the outer structure of the device for installing other structures of the device. A treatment box 2 is arranged inside the outer box 1. The treatment box 2 is the main structure of the device and is used for treating the tail gas from the metal heat treatment furnace. A gas filter layer 24 is arranged inside the treatment box 2, that is, the tail gas is filtered and treated through the gas filter layer 24 inside the treatment box 2. An air inlet pipe 21 is arranged on one side of the bottom of the treatment box 2, and the tail gas enters the treatment box 2 through the air inlet pipe 21. An exhaust port 23 is arranged on the top of the treatment box 2, that is, the treated gas is discharged through the exhaust port 23. A support seat 44 is arranged below the outer box 1, and a support column 45 is arranged on the support seat 44. The support column 45 is connected to the bottom of the outer box 1. The support seat 44 serves as the bottom structure of the device and is supported on the bottom of the outer box 1 through the support column 45, thereby supporting the overall structure.

[0024] A plurality of heat sinks 22 are arranged on the outside of the treatment box 2, and the interior of the outer box 1 is filled with cold water. A water inlet 14 is arranged on one side of the top of the outer box 1, and a breathable net 12 is arranged on the top of the outer box 1. The breathable net 12 allows the top of the treatment box 2 to be ventilated, that is, cold water is added to the interior of the outer box 1 through the water inlet 14, and the heat of the exhaust gas inside is absorbed by the treatment box 2, and its heat is evenly distributed through a plurality of heat sinks 22. The heat sink 22 is quickly cooled by the cold water inside, so that the temperature of the exhaust gas inside can be reduced, so that it can be discharged at a low temperature, making it more environmentally friendly. A transparent observation window 11 is arranged on one side of the outer box 1, and a temperature detector 13 is arranged on the inner side of the bottom of the outer box 1. The transparent observation window 11 is used to observe the water level inside the outer box 1, and the temperature detector 13 is used to detect the water temperature inside the outer box 1. A drain port 43 is arranged on one side of the bottom of the outer box 1. When the internal water temperature is too high, the hot water is discharged through the drain port 43, and cold water is added again to ensure the internal cooling effect. The drain port 43 is switched by a valve.

[0025] The air inlet pipe 21 is provided with a filter box 3, and a filter screen 33 is provided inside the filter box 3, that is, the impurities contained in the exhaust gas are blocked by the filter screen 33, and the blocked impurities are in the filter box 3. A closing plate 31 is provided on one side of the filter box 3, and the closing plate 31 is used to close one side of the filter box 3. Connecting strips 32 are provided on both sides of the closing plate 31, and connecting grooves 34 are provided on both sides of the filter box 3. The connecting strip 32 is slidably connected with the connecting groove 34, that is, the connecting strip 32 slides on the connecting groove 34, so that the closing plate 31 is removed, that is, it is convenient to remove the impurities inside the filter box 3. The gas filter layer 24 is cleaned, a water pump 4 is arranged on one side of the outer box 1, and the water pumping part of the water pump 4 is connected to the inner side of the outer box 1. A spray head 41 is arranged on the top of the gas filter layer 24. The water outlet of the water pump 4 passes through the outer box 1 and the treatment box 2, and the water outlet of the water pump 4 is connected to the spray head 41, that is, the water inside the outer box 1 is extracted by the water pump 4 and transported to the spray head 41, and the gas filter layer 24 is sprayed by the spray head 41, so as to ensure its use effect. A drain pipe 42 is arranged at the bottom of the treatment box 2, and the drain pipe 42 is used to discharge the water sprayed inside the treatment box 2, and the treatment box 2 is switched by a valve.

[0026] The working principle of the utility model is as follows: when the device is used, the exhaust gas enters the interior of the treatment box 2 through the air inlet pipe 21, that is, the impurities contained in the exhaust gas are blocked by the filter screen 33, and the blocked impurities are in the filter box 3. By removing the closing plate 31, it is convenient to clean the impurities inside the filter box 3, and the exhaust gas is filtered and processed by the gas filter layer 24 inside the treatment box 2, and cold water is added to the inside of the outer box 1 through the water inlet 14, and the heat of the exhaust gas inside is absorbed by the treatment box 2, and the heat is evenly distributed through a plurality of heat sinks 22, and the heat sink 22 is quickly cooled by the cold water inside, thereby reducing the heat inside. The temperature of the exhaust gas is reduced, so that it is discharged at a low temperature, making it more environmentally friendly. The water level inside the outer box 1 is observed through the transparent observation window 11, and the water temperature inside the outer box 1 is detected by the temperature detector 13. When the internal water temperature is too high, the hot water is discharged through the drain port 43, and cold water is added again. The water inside the outer box 1 is extracted by the water pump 4 and transported to the spray head 41. The gas filter layer 24 is sprayed by the spray head 41 to ensure its use effect. A drain pipe 42 is set at the bottom of the treatment box 2, and the drain pipe 42 is used to discharge the water sprayed inside the treatment box 2, and the treated gas is discharged through the exhaust port 23.

[0027] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A device for environmentally treating tail gas from a metal heat treatment furnace, comprising an outer box (1), characterized in that: A treatment box (2) is arranged inside the outer box (1), a gas filter layer (24) is arranged inside the treatment box (2), a plurality of heat sinks (22) are arranged outside the treatment box (2), the outer box (1) is filled with cold water, an air inlet pipe (21) is arranged on one side of the bottom of the treatment box (2), a filter box (3) is arranged on the air inlet pipe (21), a filter screen (33) is arranged inside the filter box (3), a water pump (4) is arranged on one side of the outer box (1), a water pumping point of the water pump (4) is connected to the inner side of the outer box (1), a spray head (41) is arranged on the top of the gas filter layer (24), a water outlet of the water pump (4) passes through the outer box (1) and the treatment box (2), and the water outlet of the water pump (4) is connected to the spray head (41), and an exhaust port (23) is arranged on the top of the treatment box (2).

2. The environmental protection treatment device for tail gas from a metal heat treatment furnace according to claim 1 is characterized in that: A transparent observation window (11) is provided on one side of the outer box (1), and a temperature detector (13) is provided on the inner side of the bottom of the outer box (1).

3. The environmental protection treatment device for tail gas from a metal heat treatment furnace according to claim 1 is characterized in that: A water inlet (14) is provided on one side of the top of the outer box (1), and a breathable net (12) is provided on the top of the outer box (1).

4. The environmental protection treatment device for tail gas from a metal heat treatment furnace according to claim 1 is characterized in that: A closing plate (31) is provided on one side of the filter box (3).

5. The environmental protection treatment device for tail gas from a metal heat treatment furnace according to claim 4 is characterized in that: Connecting strips (32) are provided on both sides of the closing plate (31), connecting grooves (34) are provided on both sides of the inside of the filter box (3), and the connecting strips (32) are slidably connected to the connecting grooves (34).

6. The environmental protection treatment device for tail gas from a metal heat treatment furnace according to claim 1 is characterized in that: The bottom of the processing box (2) is provided with a drainage pipe (42), and one side of the bottom of the outer box (1) is provided with a drainage port (43).

7. The environmental protection treatment device for tail gas from a metal heat treatment furnace according to claim 1 is characterized in that: A support seat (44) is arranged below the outer box (1), a support column (45) is arranged on the support seat (44), and the support column (45) is connected to the bottom of the outer box (1).

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