Flue gas reheater for hazardous waste incineration waste gas treatment

Abstract

The utility model relates to the technical field of energy recovery, and discloses a flue gas reheater for hazardous waste incineration waste gas treatment. The flue gas reheater for hazardous waste incineration waste gas treatment comprises a filter chamber, a connecting plate is fixedly mounted in the filter chamber, a baffle and a limiting plate are fixedly mounted below the connecting plate, an electrostatic generator is fixedly mounted above the filter chamber, a dust collecting hopper is fixedly mounted below the filter chamber, and a dust collecting hopper is fixedly mounted below the dust collecting hopper. A gate valve is fixedly mounted below the dust collecting hopper, an electrostatic generator can enable a baffle and a limiting plate to have static electricity, and after entering the filter chamber, flue gas can move in a broken line mode under the limitation of the baffle and the limiting plate and impact the baffle and the limiting plate for multiple times; particulate matters contained in the flue gas can be adsorbed on the surfaces of the baffle and the limiting plate under the action of static electricity, so that the effect of reducing the content of the particulate matters in the flue gas is achieved, and the particulate matters in the flue gas are prevented from being attached to the surface of the heat pipe to influence the heat conduction efficiency of the heat pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of energy recovery, in particular to a flue gas reheater for treating waste incineration exhaust gas. Background Technique

[0002] Hazardous waste flue gas refers to the waste gas discharged in industrial production. However, a large amount of heat can be recovered from these waste gases for people to use, turning waste into treasure.

[0003] There is a Chinese utility model patent with the reference publication number of CN209084807U. It discloses a hazardous waste flue gas reheater, including a cylinder body. Two first threaded rods are fixedly installed on one side of the cylinder body. The outer sides of the two first threaded rods are sleeved with first threaded sleeves, and the inner walls of the two first threaded sleeves are threadedly connected to the corresponding first threaded rods. Two second threaded rods are fixedly installed on the side of the cylinder body away from the first threaded rods. The outer sides of the two second threaded rods are sleeved with second threaded sleeves, and the inner walls of the two second threaded sleeves are threadedly connected to the corresponding second threaded rods. A support plate is arranged at the bottom of the cylinder body. The two first threaded sleeves and the two second threaded sleeves are rotatably connected to the support plate, and a motor is fixedly installed on the top of the support plate. The utility model has simple operation and strong practicability. It can automatically lift the equipment, and the lifting range is large, which is convenient for installing and maintaining the equipment.

[0004] Since a large amount of particulate matter is contained in the flue gas, it may adhere to the surface of the heat pipe when the flue gas passes through the heat exchange structure. After a certain amount of particulate matter adheres to the surface of the heat pipe, it will lead to the heat exchange efficiency of the heat pipe. At the same time, since the flue gas directly enters the heat exchange structure, the flue gas cannot be evenly distributed inside the heat exchange structure, and the flue gas only contacts some heat pipes when passing through the heat exchange structure, affecting the heat recovery efficiency. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a flue gas reheater for treating waste incineration exhaust gas, which has the advantages of being able to increase the contact area between the flue gas and the heat pipe and being able to prevent particulate matter in the flue gas from adhering to the surface of the heat pipe, etc., and solves the above technical problems.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solutions: A flue gas reheater for waste incineration waste gas treatment, comprising: a filtration chamber, a connecting plate is fixedly installed inside the filtration chamber, a baffle plate and a limiting plate are fixedly installed below the connecting plate, an electrostatic generator is fixedly installed above the filtration chamber, an ash hopper is fixedly installed below the filtration chamber, a plug valve is fixedly installed below the ash hopper, an end cover is fixedly installed at the front end of the filtration chamber, an air inlet pipe is fixedly installed at the center of the end cover, an exchange chamber is fixedly installed behind the filtration chamber, a connecting cover is fixedly installed at the front end of the exchange chamber, a connecting pipe is inserted and installed at the front end of the connecting cover, a diversion cover is fixedly installed at the rear end of the exchange chamber, an exhaust pipe is inserted and installed at the center of the diversion cover, a heat pipe is inserted and installed above the exchange chamber, and a water tank is fixedly installed above the exchange chamber; the plug valve can close the lower part of the ash hopper.

[0009] As a preferred technical solution of the present utility model, the connecting plate, the baffle plate, and the limiting plate are made of metal. A convex structure is provided above the connecting plate, and the convex structure above the connecting plate vertically penetrates the top of the filtration chamber and is connected to the electrostatic generator; the connecting plate can facilitate the transfer of electric charges to the baffle plate and the limiting plate.

[0010] As a preferred technical solution of the present utility model, the baffle plate is installed obliquely at equal distances before and after below the connecting plate. An opening structure is provided at the upper end of the limiting plate, and the limiting plate is fixedly installed between the baffle plates; the baffle plate can facilitate increasing the contact area with the flue gas.

[0011] As a preferred technical solution of the present utility model, the ash hopper is of a conical structure. The upper end of the ash hopper is fitted with the filtration chamber. The air inlet pipe is of a tee structure, and the air inlet pipe penetrates the end cover and is communicated with the inner cavity of the filtration chamber; the ash hopper can collect the falling dust.

[0012] As a preferred technical solution of the present utility model, the exchange chamber is of a rectangular pipe structure. The connecting pipe is of a tee structure. The connecting pipe is symmetrically installed on the front side of the connecting cover with the center of the connecting cover as the reference, and the rear end of the connecting pipe penetrates the connecting cover and is communicated with the inner cavity of the exchange chamber. The front end of the connecting pipe penetrates the rear side surface of the filtration chamber and is communicated with the filtration chamber; the exchange chamber can limit the passage of flue gas between the heat pipes.

[0013] As a preferred technical solution of the present utility model, the exhaust pipe penetrates the diversion cover and is communicated with the inner cavity of the exchange chamber. The heat pipes are installed equidistantly on the left and right with the center of the exchange chamber as the reference above the exchange chamber, and the bottom ends of the heat pipes are in contact with the bottom surface of the inner cavity of the exchange chamber; the heat pipes can absorb the heat of the flue gas.

[0014] As a preferred technical solution of the present utility model, the water tank is made of aluminum, and a groove structure for fitting with the heat pipe is provided at the lower end of the water tank; the water tank can hold water for absorbing heat.

[0015] Compared with the prior art, the present utility model provides a flue gas reheater for hazardous waste incineration waste gas treatment, and has the following beneficial effects:

[0016] 1. Through the setting of the electrostatic generator in the present utility model, the connecting plate, the baffle plate, and the limiting plate are made of metal. A convex structure is provided above the connecting plate, and the convex structure above the connecting plate vertically penetrates the top of the filtering chamber and is connected to the electrostatic generator. The electrostatic generator can make the baffle plate and the limiting plate carry static electricity. After the flue gas enters the interior of the filtering chamber, it will move in a zigzag shape and repeatedly impact the baffle plate and the limiting plate under the restriction of the baffle plate and the limiting plate. The particulate matter contained in the flue gas will be adsorbed on the surfaces of the baffle plate and the limiting plate under the action of static electricity, so as to achieve the effect of reducing the particulate matter content in the flue gas and avoid the particulate matter in the flue gas adhering to the surface of the heat pipe and affecting the heat conduction efficiency of the heat pipe.

[0017] 2. Through the setting of the connecting pipe in the present utility model, the connecting pipe is of a tee structure. The connecting pipe is symmetrically installed on the front side of the connecting cover with the center of the connecting cover as the reference, and the rear end of the connecting pipe penetrates the connecting cover and communicates with the inner cavity of the exchange chamber. The front end of the connecting pipe penetrates the rear side surface of the filtering chamber and communicates with the filtering chamber. After the flue gas passes through the filtering chamber, it can enter the interior of the exchange chamber through the connecting pipe. The connecting pipe can make the flue gas enter the interior of the exchange chamber from four places, making the distribution of the flue gas in the exchange chamber more uniform. Since the movement direction of the flue gas is restricted by the exchange chamber, the flue gas will move backward through the area between the heat pipes after entering the interior of the exchange chamber, and finally be discharged from the exhaust pipe under the guidance of the diversion cover. This way can increase the contact area between the flue gas and the heat pipe. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the installation structure of the baffle plate and the limiting plate of the present utility model;

[0020] Figure 3 It is a schematic diagram of the connection structure between the heat pipe and the exchange chamber of the present utility model;

[0021] Figure 4 It is a schematic diagram of the connection structure between the heat pipe and the water tank of the present utility model;

[0022] Wherein: 1. Filter chamber; 11. Connection plate; 12. Baffle; 13. Limiting plate; 14. Electrostatic generator; 15. Ash hopper; 16. Slide valve; 17. End cover; 18. Inlet pipe; 2. Exchange chamber; 21. Connection cover; 22. Connection pipe; 23. Flow guide cover; 24. Exhaust pipe; 25. Heat pipe; 26. Water tank. Specific embodiments

[0023] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", 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 therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Please refer to Figure 1 - Figure 4 , in this embodiment, a flue gas reheater for hazardous waste incineration waste gas treatment includes: a filter chamber 1, a connection plate 11 is fixedly installed inside the filter chamber 1, a baffle 12 and a limiting plate 13 are fixedly installed below the connection plate 11, an electrostatic generator 14 is fixedly installed above the filter chamber 1, an ash hopper 15 is fixedly installed below the filter chamber 1, a slide valve 16 is fixedly installed below the ash hopper 15, an end cover 17 is fixedly installed at the front end of the filter chamber 1, and an inlet pipe 18 is fixedly installed at the center of the end cover 17.

[0027] The connecting plate 11, the baffle plate 12, and the limiting plate 13 are made of metal. A convex structure is provided above the connecting plate 11, and the convex structure above the connecting plate 11 vertically penetrates the top of the filtration chamber 1 and is connected to the electrostatic generator 14. The baffle plate 12 is obliquely installed below the connecting plate 11 at equal distances front and back. The upper end of the limiting plate 13 is provided with an opening structure, and the limiting plate 13 is fixedly installed between the baffle plates 12. The ash hopper 15 is of a conical structure, and the upper end of the ash hopper 15 is fitted with the filtration chamber 1. The intake pipe 18 is of a tee structure, and the penetrating end of the intake pipe 18 penetrates the end cover 17 and communicates with the inner cavity of the filtration chamber 1.

[0028] Specifically, the filtration chamber 1 can limit the position of the flue gas. The connecting plate 11 can facilitate the transfer of electric charges to the baffle plate 12 and the limiting plate 13. The baffle plate 12 can facilitate the increase of the contact area with the flue gas. The limiting plate 13 can limit the direction of the flue gas passing through. The electrostatic generator 14 can facilitate the baffle plate 12 and the limiting plate 13 to carry static electricity. The ash hopper 15 can collect the falling dust. The plug valve 16 can seal the lower end of the ash hopper 15. The end cover 17 can seal the front end of the filtration chamber 1 and limit the position of the intake pipe 18. The intake pipe 18 can facilitate the flue gas to enter the interior of the filtration chamber 1.

[0029] A switching chamber 2 is fixedly installed behind the filtration chamber 1. A connection cover 21 is fixedly installed at the front end of the switching chamber 2. A connection pipe 22 is inserted and installed at the front end of the connection cover 21. A diversion cover 23 is fixedly installed at the rear end of the switching chamber 2. An exhaust pipe 24 is inserted through the center of the diversion cover 23. A heat pipe 25 is inserted through the upper part of the switching chamber 2. A water tank 26 is fixedly installed above the switching chamber 2.

[0030] The switching chamber 2 is of a rectangular pipe structure. The connection pipe 22 is of a tee structure. The connection pipe 22 is symmetrically installed on the front side of the connection cover 21 with the center of the connection cover 21 as the reference, and the rear end of the connection pipe 22 penetrates the connection cover 21 and communicates with the inner cavity of the switching chamber 2. The front end of the connection pipe 22 penetrates the rear side surface of the filtration chamber 1 and communicates with the filtration chamber 1.

[0031] The exhaust pipe 24 penetrates the diversion cover 23 and communicates with the inner cavity of the switching chamber 2. The heat pipes 25 are equidistantly installed on the upper part of the switching chamber 2 with the center of the switching chamber 2 as the reference, and the bottom ends of the heat pipes 25 are in contact with the bottom surface of the inner cavity of the switching chamber 2. The water tank 26 is made of aluminum, and a groove structure fitted with the heat pipes 25 is provided at the lower end of the water tank 26.

[0032] Specifically, the switching chamber 2 can limit the flue gas from passing between the heat pipes 25. The connection cover 21 can limit the position of the connection pipe 22. The connection pipe 22 can limit the position of the flue gas entering the switching chamber 2. The diversion cover 23 can facilitate the flue gas to enter the exhaust pipe 24. The exhaust pipe 24 can facilitate the discharge of the flue gas. The heat pipes 25 can absorb the heat of the flue gas. The water tank 26 can hold the water used for absorbing heat.

[0033] In use, the connecting plate 11, the baffle plate 12, and the limiting plate 13 are made of metal. A convex structure is provided above the connecting plate 11, and the convex structure above the connecting plate 11 vertically penetrates the top of the filtration chamber 1 and is connected to the electrostatic generator 14. The electrostatic generator 14 can make the baffle plate 12 and the limiting plate 13 carry static electricity. After the flue gas enters the interior of the filtration chamber 1, it will move in a zigzag motion and repeatedly impact the baffle plate 12 and the limiting plate 13 under the restriction of the baffle plate 12 and the limiting plate 13. The particulate matter contained in the flue gas will be adsorbed on the surfaces of the baffle plate 12 and the limiting plate 13 under the action of static electricity, so as to achieve the effect of reducing the particulate matter content in the flue gas and avoid the particulate matter in the flue gas adhering to the surface of the heat pipe 25 and affecting the heat conduction efficiency of the heat pipe 25. The connecting pipe 22 is of a tee structure. The connecting pipe 22 is symmetrically installed on the front side of the connecting cover 21 with the center of the connecting cover 21 as the reference, and the rear end of the connecting pipe 22 penetrates the connecting cover 21 and communicates with the inner cavity of the exchange chamber 2. The front end of the connecting pipe 22 penetrates the rear side surface of the filtration chamber 1 and communicates with the filtration chamber 1. After the flue gas passes through the filtration chamber 1, it can enter the interior of the exchange chamber 2 through the connecting pipe 22. The connecting pipe 22 can make the flue gas enter the interior of the exchange chamber 2 from four places, making the distribution of the flue gas in the exchange chamber 2 more uniform. Since the moving direction of the flue gas is restricted by the exchange chamber 2, the flue gas will move backward through the area between the heat pipes 25 after entering the interior of the exchange chamber 2, and finally be discharged from the exhaust pipe 24 under the guidance of the diversion cover 23. This method can increase the contact area between the flue gas and the heat pipe 25.

[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flue gas reheater for hazardous waste incineration exhaust gas treatment, characterized in that, Comprising: A filtration chamber (1), inside which a connecting plate (11) is fixedly installed. Below the connecting plate (11), a baffle (12) and a limiting plate (13) are fixedly installed. Above the filtration chamber (1), an electrostatic generator (14) is fixedly installed. Below the filtration chamber (1), an ash hopper (15) is fixedly installed. Below the ash hopper (15), a flap valve (16) is fixedly installed. At the front end of the filtration chamber (1), an end cover (17) is fixedly installed. At the center of the end cover (17), an air inlet pipe (18) is fixedly installed. Behind the filtration chamber (1), an exchange chamber (2) is fixedly installed. At the front end of the exchange chamber (2), a connection cover (21) is fixedly installed. At the front end of the connection cover (21), a connection pipe (22) is inserted and installed. At the rear end of the exchange chamber (2), a diversion cover (23) is fixedly installed. At the center of the diversion cover (23), an exhaust pipe (24) is inserted and installed. Above the exchange chamber (2), a heat pipe (25) is inserted and installed. Above the exchange chamber (2), a water tank (26) is fixedly installed.

2. The flue gas reheater for hazardous waste incineration waste gas treatment according to claim 1, wherein: The connecting plate (11), the baffle (12), and the limiting plate (13) are made of metal. Above the connecting plate (11), a convex structure is provided, and the convex structure above the connecting plate (11) vertically penetrates the top of the filtration chamber (1) and is connected to the electrostatic generator (14).

3. The flue gas reheater for hazardous waste incineration waste gas treatment according to claim 1, wherein: The baffle (12) is installed obliquely at equal distances before and after below the connecting plate (11). At the upper end of the limiting plate (13), an opening structure is provided, and the limiting plate (13) is fixedly installed between the baffles (12).

4. The flue gas reheater for hazardous waste incineration waste gas treatment according to claim 1, wherein: The ash hopper (15) is of a conical structure. The upper end of the ash hopper (15) is fitted with the filtration chamber (1). The air inlet pipe (18) is of a tee structure, and the air inlet pipe (18) penetrates the end cover (17) and is communicated with the inner cavity of the filtration chamber (1).

5. The flue gas reheater for hazardous waste incineration waste gas treatment according to claim 1, wherein: The exchange chamber (2) is of a rectangular pipe structure. The connection pipe (22) is of a tee structure. The connection pipe (22) is symmetrically installed on the front side of the connection cover (21) with the center of the connection cover (21) as the reference, and the rear end of the connection pipe (22) penetrates the connection cover (21) and is communicated with the inner cavity of the exchange chamber (2). The front end of the connection pipe (22) penetrates the rear side surface of the filtration chamber (1) and is communicated with the filtration chamber (1).

6. The flue gas reheater for hazardous waste incineration waste gas treatment according to claim 1, wherein: The exhaust pipe (24) penetrates through the flow guide cover (23) and is communicated with the inner cavity of the exchange chamber (2). The heat pipes (25) are symmetrically installed on the upper part of the exchange chamber (2) at equal distances on the left and right with the center of the exchange chamber (2) as the reference, and the bottom ends of the heat pipes (25) are in contact with the bottom surface of the inner cavity of the exchange chamber (2).

7. A flue gas reheater for hazardous waste incineration waste gas treatment according to claim 1, characterized in that: The water tank (26) is made of aluminum, and a groove structure for fitting with the heat pipe (25) is provided at the lower end of the water tank (26).

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