Recycler for flue gas waste heat of heat treatment furnace

Abstract

The utility model discloses a recoverer for flue gas waste heat of a heat treatment furnace, which relates to the technical field of flue gas waste heat recovery and comprises a furnace body, the top of the furnace body is connected with a smoke exhaust pipe, the other end of the smoke exhaust pipe is provided with a dust settling chamber, and the other side of the dust settling chamber is connected with a waste heat recoverer. A first fan is connected to the top of the waste heat recoverer, a filter box is installed on the other side of the first fan, and a sliding groove is formed in the filter box. According to the utility model, the first filter plate, the second filter plate, the filter box, the clamping block, the clamping groove, the second filter screen, the first filter screen and the activated carbon adsorption layer are arranged, and the clamping block can be conveniently driven to move by operating the second filter screen, so that the second filter screen, the first filter screen and the activated carbon adsorption layer can be conveniently disassembled; and the second filter screen, the first filter screen and the activated carbon adsorption layer can be cleaned, regenerated and replaced conveniently, and high practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas waste heat recovery, in particular to a flue gas waste heat recovery device for a heat treatment furnace. Background Art

[0002] Heat treatment is one of the important processes in mechanical manufacturing. Heat treatment generally does not change the shape and overall chemical composition of the workpiece, but rather imparts or improves the performance of the workpiece by changing the microstructure inside the workpiece or changing the chemical composition on the surface of the workpiece. In the heat treatment process, a heat treatment furnace is required. Heat treatment furnaces can be divided into quenching furnaces, tempering furnaces, annealing furnaces, etc. according to different uses.

[0003] The Chinese utility model patent application disclosure specification CN202020689039.X discloses a waste heat recovery device for a heat treatment furnace. Although the waste heat recovery device solves the problems in the prior art that a large amount of high-temperature exhaust gas generated by the heat treatment furnace cannot be purified in time, pollutes the air, and the heat energy cannot be effectively utilized, however, during the long-term use of the waste heat recovery device, the filter surface in the flue gas filtration mechanism is easily clogged by impurities in the flue gas, thereby affecting the subsequent flue gas filtration work, reducing the practicality. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that in the existing waste heat recovery device, the filter surface in the flue gas filtering mechanism is easily blocked by impurities in the flue gas during long-term use, thereby affecting the subsequent flue gas filtration work and reducing the practicality. A waste heat recovery device for flue gas in a heat treatment furnace is proposed.

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

[0006] A heat treatment furnace flue gas waste heat recovery device, comprising:

[0007] A furnace body, wherein a smoke exhaust pipe is connected to the top of the furnace body, and a dust settling chamber is installed at the other end of the smoke exhaust pipe, a waste heat recovery device is connected to the other side of the dust settling chamber, and a first fan is connected to the top of the waste heat recovery device, a filter box is installed on the other side of the first fan, a slide groove is provided inside the filter box, and a first filter plate is arranged inside the filter box, a second filter plate is arranged on one side of the first filter plate, and sliders are installed on the outside of the second filter plate and the outside of the first filter plate, a sealing block is connected to the opposite surface of the slider, and a card slot is provided on the outside of the sealing block, a second filter screen is movably connected to the inside of the second filter plate and the inside of the first filter plate, and an activated carbon adsorption layer is provided on one side of the second filter screen, a first filter screen is provided on the other side of the activated carbon adsorption layer, and a card block is connected to the outside of the second filter screen and the inside of the card slot.

[0008] Preferably, a heat recovery pipe is connected to one side of the waste heat recovery device, and the other end of the heat recovery pipe is connected to one side of the furnace body with a second fan, a slag box is installed at the bottom of the furnace body, and a heat exchanger is installed on the other side of the slag box.

[0009] Preferably, a movable structure is formed between the sealing block and the filter box through a slider, a slide groove, and a first filter plate, and an outer wall of the sealing block is in contact with an inner wall of the filter box.

[0010] Preferably, the second filter screen and the first filter plate form a detachable structure through a card slot and a card block, and the card blocks are distributed in four groups.

[0011] Preferably, a movable structure is formed between the second filter plate and the filter box through a slider and a slide groove, and the specification and shape of the second filter plate are consistent with the specification and shape of the first filter plate.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. In the utility model, a first filter plate, a second filter plate, a filter box, a card block, a card slot, a second filter screen, a first filter screen and an activated carbon adsorption layer are provided. By operating the second filter screen, it is convenient to drive the card block to move, so that it is convenient to complete the disassembly of the second filter screen, the first filter screen and the activated carbon adsorption layer, and it is convenient to clean, regenerate and replace the second filter screen, the first filter screen and the activated carbon adsorption layer, and it has high practicality.

[0014] 2. In the utility model, a first filter plate, a second filter plate, a filter box, a slider, a slide groove and a sealing block are provided. By moving the first filter plate and the second filter plate alternately, the first filter plate and the second filter screen and the first filter screen on the second filter plate can be cleaned or replaced without stopping the machine, and the activated carbon adsorption layer can also be regenerated, thereby improving the flue gas waste heat recovery efficiency and having high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the filter box in the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the second filter plate in the utility model.

[0018] Legend:

[0019] 1. Furnace body; 2. Slag box; 3. Heat exchanger; 4. Smoke exhaust pipe; 5. Dust settling chamber; 6. Waste heat recovery device; 7. First fan; 8. Filter box; 9. First filter plate; 10. Second filter plate; 11. Heat recovery pipe; 12. Second fan; 13. Slide; 14. Sliding block; 15. Second filter screen; 16. Sealing block; 17. Slot; 18. Block; 19. Activated carbon adsorption layer; 20. First filter screen. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1-3A heat treatment furnace flue gas waste heat recovery device comprises a furnace body 1, a smoke exhaust pipe 4 is connected to the top of the furnace body 1, and a dust settling chamber 5 is installed at the other end of the smoke exhaust pipe 4, a waste heat recovery device 6 is connected to the other side of the dust settling chamber 5, and a first fan 7 is connected to the top of the waste heat recovery device 6, and a filter box 8 is installed on the other side of the first fan 7, a chute 13 is opened inside the filter box 8, and a first filter plate 9 is arranged inside the filter box 8, a second filter plate 10 is arranged on one side of the first filter plate 9, and the outer side of the second filter plate 10 is connected to the first filter plate 9. The outside of the filter plate 9 is installed with a slider 14, and the second filter plate 10 and the filter box 8 form a movable structure through the slider 14 and the slide groove 13, and the specification and shape of the second filter plate 10 are consistent with the specification and shape of the first filter plate 9. The second filter plate 10 is manually operated, and the second filter plate 10 is moved through the slider 14 and the slide groove 13, so that it is convenient to clean or replace the filter screen on the second filter plate 10. The opposite surface of the slider 14 is connected to the sealing block 16, and the outside of the sealing block 16 is provided with a card slot 17, and the sealing block 1 The slider 14, the chute 13, and the first filter plate 9 form a movable structure between the filter box 6 and the filter box 8, and the outer wall of the sealing block 16 contacts the inner wall of the filter box 8. The first filter plate 9 is manually operated, and the first filter plate 9 is moved by the cooperation of the slider 14 and the chute 13. The first filter plate 9 drives the sealing block 16 to move, and the sealing block 16 will move to the outlet of the filter box 8, so that it is convenient to close the outlet of the filter box 8. The interior of the second filter plate 10 and the interior of the first filter plate 9 are both movably connected with the second filter screen 1 5, and an activated carbon adsorption layer 19 is provided on one side of the second filter screen 15, and a detachable structure is formed between the second filter screen 15 and the first filter plate 9 through a card slot 17 and a card block 18, and the card block 18 is distributed in four groups, and the second filter screen 15 is manually operated, and the second filter screen 15 drives the card block 18 to move, and the card block 18 will move to the outside of the card slot 17, so that the disassembly work of the second filter screen 15 is conveniently completed, and the first filter screen 20 is provided on the other side of the activated carbon adsorption layer 19, and the outside of the second filter screen 15 and the inside of the card slot 17 are connected by the card block 18;

[0022] A heat recovery pipe 11 is connected to one side of the waste heat recovery device 6, and the other end of the heat recovery pipe 11 is connected to one side of the furnace body 1 with a second fan 12. A slag box 2 is installed at the bottom of the furnace body 1, and a heat exchanger 3 is installed on the other side of the slag box 2. The second fan 12 introduces the hot air recovered by the waste heat recovery device 6 into the furnace body 1 again through the heat recovery pipe 11, thereby achieving the purpose of reducing the emission temperature of the exhaust gas and saving the energy of the combustion chamber.

[0023] Working principle: When in use, first manually operate the first filter plate 9 or the second filter plate 10 in turn. The first filter plate 9 (or the second filter plate 10) is moved by the cooperation of the slider 14 and the slide groove 13. The first filter plate 9 (or the second filter plate 10) will drive the second filter screen 15, the activated carbon adsorption layer 19, the first filter screen 20 and the sealing block 16 to move. The sealing block 16 can be used to close the outlet of the filter box 8 to prevent the smoke inside the filter box 8 from escaping through the outlet. Then manually operate the second filter screen 15. The second filter 15 drives the block 18 to move, and the block 18 will move out of the slot 17, so that it is convenient to complete the disassembly of the second filter 15, the activated carbon adsorption layer 19 and the first filter 20, and it is convenient to clean or replace the second filter 15 and the first filter 20, and it is also convenient to regenerate the activated carbon adsorption layer 19. The first filter plate 9 and the second filter plate 10 are provided to realize the replacement or cleaning of the filter without stopping the machine (the flue gas waste heat recovery principle inside the furnace body 1 is consistent with the flue gas waste heat recovery principle in the comparative patent).

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat treatment furnace flue gas waste heat recovery device, characterized in that: include: A furnace body (1), the top of the furnace body (1) is connected to a smoke exhaust pipe (4), and the other end of the smoke exhaust pipe (4) is installed with a dust settling chamber (5), the other side of the dust settling chamber (5) is connected to a waste heat recovery device (6), and the top of the waste heat recovery device (6) is connected to a first fan (7), the other side of the first fan (7) is installed with a filter box (8), the inside of the filter box (8) is provided with a slide groove (13), and the inside of the filter box (8) is provided with a first filter plate (9), one side of the first filter plate (9) is provided with a second filter plate (10), and the second filter plate (10 ) and the outside of the first filter plate (9) are both installed with a slider (14), the opposite surface of the slider (14) is connected to a sealing block (16), and the outside of the sealing block (16) is provided with a slot (17), the inside of the second filter plate (10) and the inside of the first filter plate (9) are both movably connected with a second filter screen (15), and an activated carbon adsorption layer (19) is provided on one side of the second filter screen (15), and the other side of the activated carbon adsorption layer (19) is provided with a first filter screen (20), and the outside of the second filter screen (15) and the inside of the slot (17) are connected with a block (18).

2. A heat treatment furnace flue gas waste heat recovery device according to claim 1, characterized in that: A heat recovery pipe (11) is connected to one side of the waste heat recovery device (6), and the other end of the heat recovery pipe (11) is connected to a second fan (12) on one side of the furnace body (1). A slag box (2) is installed at the bottom of the furnace body (1), and a heat exchanger (3) is installed on the other side of the slag box (2).

3. The heat recovery device for flue gas waste heat of a heat treatment furnace according to claim 1, characterized in that: A movable structure is formed between the sealing block (16) and the filter box (8) via a slider (14), a slide groove (13) and a first filter plate (9), and the outer wall of the sealing block (16) is in contact with the inner wall of the filter box (8).

4. The heat recovery device for flue gas waste heat of a heat treatment furnace according to claim 1, characterized in that: The second filter screen (15) and the first filter plate (9) form a detachable structure through a clamping groove (17) and a clamping block (18), and the clamping blocks (18) are distributed in four groups.

5. The heat recovery device for flue gas waste heat of a heat treatment furnace according to claim 1, characterized in that: A movable structure is formed between the second filter plate (10) and the filter box (8) via a slider (14) and a slide groove (13), and the specification and shape of the second filter plate (10) are consistent with the specification and shape of the first filter plate (9).

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