A system device for recycling flue gas from dry quenching coke oven

Abstract

The utility model belongs to the technical field of flue gas recycling, and is particularly a system device for recycling flue gas from a dry coke quenching oven, including an oven body, a dust box fixedly installed on one side of the oven body, a filter box fixedly installed on one side of the dust box, an air duct fixedly connected to one side of the filter box, a heat exchange box fixedly connected to one end of the air duct, a base fixedly installed at the bottom of the heat exchange box, and the oven body and the dust box are connected through a pipeline. The utility model can block and precipitate dust in the flue gas by setting a dust box, a sedimentation tank, a baffle and a sewage outlet for coordinated use, and is convenient for dust removal. By setting a filter box, a filter net, a sealing plate and a sealing groove for coordinated use, the overflowed dust can be further filtered to facilitate the improvement of the dust removal effect. By setting a sealing plate and a sealing groove for movable insertion, the internal filter net can be taken out by pulling the handle, which is convenient for cleaning or replacement, and is convenient for better long-term work use.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas recycling, in particular to a dry quenching coke oven flue gas recycling system device. Background Art

[0002] The so-called dry coke quenching process is relative to wet coke quenching, and refers to a coke quenching process method that uses inert gas to cool down red coke. The dry coke quenching system gradually heats up from a cold state to the temperature for loading red coke and starting work. This process is called the dry coke quenching oven. After the dry coke quenching system is completed after the furnace construction project is completed and the main equipment is debugged, an important link before the formal loading of red coke and the start of work is the dry coke quenching oven.

[0003] The prior art has the following deficiencies: The prior art application number is CN201220045424.6, which is a drying device for a dry quenching coke oven, comprising a dry quenching coke oven, a lifter being arranged on one side of the dry quenching coke oven, a coke can containing burning coke being arranged on the lifter, and the lifter being characterized in that the lifter is connected to a controller via a wire so that the coke can is placed in the dry quenching coke oven through the lifter for baking, and then taken out of the dry quenching coke oven after baking.

[0004] Although the above equipment can effectively treat the flue gas generated by the drying furnace when in use, its overall structure and functionality are relatively simple, which makes it inconvenient to recycle the heat contained in the flue gas, easily causing waste of heat energy, and not conducive to better improving the effect of energy conservation and environmental protection. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a dry quenching coke oven flue gas recycling system device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dry quenching coke oven fume recycling system device, comprising a oven body, a dust box fixedly installed on one side of the oven body, a filter box fixedly installed on one side of the dust box, an air duct fixedly connected to one side of the filter box, a heat exchange box fixedly connected to one end of the air duct, and a base fixedly installed on the bottom of the heat exchange box.

[0007] As a preferred technical solution of the present utility model, the oven main body and the dust collecting box are connected through a pipeline.

[0008] As a preferred technical solution of the utility model, the dust collecting box includes a sedimentation trough, a baffle and a sewage outlet. The dust collecting box is provided with a sedimentation trough inside, the baffle is fixedly installed inside the dust collecting box, the sewage outlet is provided at the bottom of the dust collecting box, the sedimentation trough is arranged in an inverted V shape, and a control valve is provided on the sewage outlet.

[0009] As a preferred technical solution of the utility model, the filter box includes a filter screen, a sealing plate and a sealing groove. A filter screen is arranged inside the filter box, a sealing plate is fixedly connected to the top of the filter screen, a sealing groove is arranged on the top of the filter box, two filter screens are arranged, and the filter screens are symmetrically distributed inside the filter box. The outer diameter of the sealing plate is matched with the inner diameter of the sealing groove, and the sealing plate is movably connected to the sealing groove.

[0010] As a preferred technical solution of the utility model, the heat exchange box includes a water inlet, a drain outlet, a heat exchange tube, an air baffle and an exhaust port. A water inlet is provided on one side of the heat exchange box, and an exhaust port is provided on one side of the heat exchange box. Heat exchange tubes are fixedly installed inside the heat exchange box, an air baffle is fixedly installed on the inner wall of the heat exchange tube, and an exhaust port is provided at the bottom of the heat exchange box. The water inlet and the drain outlet are provided on the same side, and a control valve is provided on the drain outlet.

[0011] As a preferred technical solution of the utility model, the heat exchange tube is arranged in an S-shape, the heat exchange tube is connected with the air guide tube and the exhaust port, and the heat exchange tube is made of aluminum alloy material.

[0012] As a preferred technical solution of the utility model, a plurality of air baffles are provided, and the air baffles are evenly and symmetrically distributed on the inner wall of the heat exchange tube.

[0013] Compared with the prior art, the utility model provides a dry quenching coke oven flue gas recycling system device, which has the following beneficial effects:

[0014] 1. A dry quenching coke oven flue gas recycling system device can block and precipitate dust in the flue gas by setting a dust collecting box, a sedimentation tank, a baffle and a sewage outlet for coordinated use, so as to facilitate dust removal. By setting a filter box, a filter net, a sealing plate and a sealing groove for coordinated use, overflowed dust can be further filtered to facilitate improving the dust removal effect. By setting a sealing plate and a sealing groove for movable connection, the internal filter net can be taken out by pulling the handle, so as to facilitate cleaning or replacement, and better facilitate long-term working use.

[0015] 2. This kind of CDQ coke oven flue gas recycling system device, through the arrangement of an air duct, a heat exchange box, a water inlet, a drain outlet and a heat exchange tube for coordinated use, can facilitate the rapid heat exchange of the hot gas inside the heat exchange tube. At the same time, an air baffle is arranged inside the heat exchange tube to slow down the passage time of the hot gas, making the heat exchange more complete and facilitating the recovery and utilization of heat, which can further enhance the effect of energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the dust collecting box and the filter box of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the dust collecting box and the filter box of the utility model;

[0020] Figure 5 This is a schematic diagram of the heat exchange box structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the heat exchange tube structure of the utility model.

[0022] In the figure: 1. oven body; 2. dust collecting box; 201. sedimentation tank; 202. baffle; 203. sewage outlet; 3. filter box; 301. filter screen; 302. sealing plate; 303. sealing groove; 4. air guide tube; 5. heat exchange box; 501. water inlet; 502. drain outlet; 503. heat exchange tube; 504. air baffle; 505. exhaust port; 6. base. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] See also Figure 1-6 In this embodiment: a dry quenching coke oven flue gas recycling system device comprises an oven body 1, a dust collecting box 2 is fixedly installed on one side of the oven body 1 for collecting dust, a filter box 3 is fixedly installed on one side of the dust collecting box 2 for filtering dust, an air guide pipe 4 is fixedly connected to one side of the filter box 3 for air guiding, a heat exchange box 5 is fixedly connected to one end of the air guide pipe 4 for heat exchange of hot air, a base 6 is fixedly installed on the bottom of the heat exchange box 5 for installing the heat exchange box 5 conveniently.

[0025] In this embodiment, the oven body 1 and the dust box 2 are connected through a pipeline, which is convenient for exhausting smoke and convenient for work and use; the dust box 2 includes a sedimentation tank 201, a baffle 202 and a sewage outlet 203. The dust box 2 is provided with a sedimentation tank 201, a baffle 202 is fixedly installed inside the dust box 2, and a sewage outlet 203 is provided at the bottom of the dust box 2. The sedimentation tank 201 is set in an inverted V shape, and a control valve is provided on the sewage outlet 203, which is convenient for blocking and precipitating dust. The filter box 3 includes a filter screen 301, a sealing plate 302 and a sealing groove 303. The filter screen 301 is arranged inside the filter box 3. The sealing plate 302 is fixedly connected to the top of the filter screen 301. The sealing groove 303 is arranged on the top of the filter box 3. There are two filter screens 301. The filter screens 301 are symmetrically distributed inside the filter box 3. The outer diameter of the sealing plate 302 is matched with the inner diameter of the sealing groove 303. The sealing plate 302 and the sealing groove 303 are movably plugged. It is convenient to improve the dust removal effect and prevent environmental pollution; the heat exchange box 5 includes a water inlet 501, a drain port 502, a heat exchange tube 503, an air baffle 504 and an exhaust port 505. The heat exchange box 5 is provided with a water inlet 501 on one side, and an exhaust port 505 on one side of the heat exchange box 5. The heat exchange tube 503 is fixedly installed inside the heat exchange box 5, and the air baffle 504 is fixedly installed on the inner wall of the heat exchange tube 503. The exhaust port 505 is provided at the bottom of the heat exchange box 5. The water inlet 501 and the drain port 502 are provided. On the same side, a control valve is provided on the drain outlet 502 to facilitate the injection of cold water and the discharge of hot water, thereby facilitating heat exchange. The heat exchange tube 503 is arranged in an S-shape, and the heat exchange tube 503 is connected with the air guide tube 4 and the exhaust port 505. The heat exchange tube 503 is made of an aluminum alloy material to facilitate the passage of hot air and facilitate heat exchange. A plurality of air baffles 504 are provided, and the air baffles 504 are evenly and symmetrically distributed on the inner wall of the heat exchange tube 503 to delay the passage time of hot air and improve the heat exchange effect.

[0026] The working principle and use process of the utility model: when the operator is in use, the smoke generated by the oven main body 1 is discharged into the dust collecting box 2 through the pipe. By arranging a sedimentation tank 201 and a baffle 202 inside the dust collecting box 2, the dust in the smoke can be blocked from settling. By opening the sewage outlet 203, the dust settled inside can be removed. By arranging a filter screen 301 inside the filter box 3, the overflowing dust can be further blocked. By pulling up the sealing plate 302, the filter screen 301 can be taken out for cleaning. The hot air in the smoke can be introduced into the heat exchange tube 503 inside the heat exchange box 5 through the air guide pipe 4. Cold water can be injected into the water inlet 501, which is convenient for quickly absorbing heat from the hot air inside the heat exchange tube 503 and facilitating heat recovery and utilization. The smoke after heat exchange can be discharged through the exhaust port 505.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dry quenching coke oven flue gas recycling system device, comprising an oven body (1), characterized in that: A dust collecting box (2) is fixedly mounted on one side of the oven body (1), a filter box (3) is fixedly mounted on one side of the dust collecting box (2), an air guide tube (4) is fixedly connected to one side of the filter box (3), one end of the air guide tube (4) is fixedly connected to a heat exchange box (5), and a base (6) is fixedly mounted on the bottom of the heat exchange box (5).

2. A CDQ coke oven flue gas recycling system according to claim 1, characterized in that: The oven body (1) and the dust collection box (2) are connected via a pipe.

3. The CDQ coke oven flue gas recycling system device according to claim 1, characterized in that: The dust collecting box (2) comprises a sedimentation tank (201), a baffle (202) and a sewage outlet (203); the sedimentation tank (201) is arranged inside the dust collecting box (2); the baffle (202) is fixedly installed inside the dust collecting box (2); the sewage outlet (203) is arranged at the bottom of the dust collecting box (2); the sedimentation tank (201) is arranged in an inverted V shape; and a control valve is arranged on the sewage outlet (203).

4. The CDQ coke oven flue gas recycling system device according to claim 1, characterized in that: The filter box (3) comprises a filter screen (301), a sealing plate (302) and a sealing groove (303); the filter screen (301) is arranged inside the filter box (3); the sealing plate (302) is fixedly connected to the top of the filter screen (301); the sealing groove (303) is arranged on the top of the filter box (3); two filter screens (301) are arranged; the filter screens (301) are symmetrically distributed inside the filter box (3); the outer diameter of the sealing plate (302) is matched to the inner diameter of the sealing groove (303); the sealing plate (302) and the sealing groove (303) are movably plugged.

5. The CDQ coke oven flue gas recycling system device according to claim 1, characterized in that: The heat exchange box (5) comprises a water inlet (501), a water outlet (502), a heat exchange tube (503), an air baffle (504) and an air outlet (505); a water inlet (501) is arranged on one side of the heat exchange box (5); an air outlet (505) is arranged on one side of the heat exchange box (5); a heat exchange tube (503) is fixedly installed inside the heat exchange box (5); an air baffle (504) is fixedly installed on the inner wall of the heat exchange tube (503); an air outlet (505) is arranged at the bottom of the heat exchange box (5); the water inlet (501) and the water outlet (502) are arranged on the same side; and a control valve is arranged on the water outlet (502).

6. A CDQ coke oven flue gas recycling system according to claim 5, characterized in that: The heat exchange tube (503) is configured to be in an S-shaped shape; the heat exchange tube (503) is connected to the air guide tube (4) and the exhaust port (505); and the heat exchange tube (503) is made of an aluminum alloy material.

7. The CDQ coke oven flue gas recycling system device according to claim 5, characterized in that: A plurality of air baffles (504) are provided, and the air baffles (504) are evenly and symmetrically distributed on the inner wall of the heat exchange tube (503).

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