Environment-friendly treatment device for waste incineration flue gas

Abstract

The utility model discloses a waste incineration flue gas environmental protection treatment device, including device main part, heat exchange tank, spiral heat exchange tube, baffle plate and spraying branch pipe, baffle plate all are fixed in the device main part, and the inside of device main part between baffle plate all is provided with purification channel, spraying branch pipe all is installed on the inner wall of purification channel, spraying branch pipe all is installed on the inner wall of purification channel. Spraying branch pipes are arranged on the upper portion of the device body, nozzles are installed on the outer walls of the spraying branch pipes at equal intervals, a water conveying header pipe is installed in the position, above the spraying branch pipes, of the device body, an exhaust port is formed in the top end of the device body, a blow-off pipe is installed at the bottom end of the device body, and the heat exchange tank is arranged on one side of the device body. And the spiral heat exchange tube is mounted in the heat exchange tank. The flue gas heat recovery device not only can recover flue gas heat and improve the environmental protection property, but also adopts the purification channel with the snake-shaped structure, so that the purification treatment of flue gas is more thorough, and the purification effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, specifically to an environmentally friendly treatment device for waste incineration flue gas. Background Art

[0002] When garbage is incinerated, a large amount of flue gas is produced. The flue gas contains a large amount of suspended particulate matter. When this substance is discharged into the air, it will cause air pollution. Therefore, the flue gas needs to be purified.

[0003] When purifying flue gas, a spray tower is usually used to treat the flue gas harmlessly. During the spraying process, it is inconvenient to recover the heat of the flue gas, which is not energy-saving and environmentally friendly. In addition, the flue gas rises at a fast rate after entering the spray tower, and the contact reaction time between the flue gas and the purified water is short, resulting in poor purification effect. Utility Model Content

[0004] The purpose of the utility model is to provide an environmental protection device for treating flue gas from garbage incineration, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for environmental protection of flue gas from garbage incineration, comprising a device body, a heat exchange tank, a spiral heat exchange tube, a partition and a spray branch pipe, the partitions are all fixed inside the device body, and a purification channel is provided inside the device body between the partitions, and the purification channel is connected through the through-holes inside the partitions, an open groove is provided inside the device body above the partition, and a leakage hole is provided inside the device body below the partition, the spray branch pipes are all installed on the inner wall of the purification channel, and the outer wall of the spray branch pipe is installed with nozzles at equal intervals, and a water supply main is installed inside the device body above the spray branch pipe. Pipe, the water main is connected with the spray branch pipe, the top of the device body is provided with an exhaust port, and the bottom end of the device body is installed with a sewage pipe, the heat exchange tank is arranged on one side of the device body, the spiral heat exchange tube is installed inside the heat exchange tank, and one end of the spiral heat exchange tube is connected with the purification channel through a second conduit, and a water inlet pipe and a drain pipe are respectively installed on the outer walls of the top and bottom of the heat exchange tank, a water tank is provided on the side of the device body away from the heat exchange tank, and a water pump is installed on the top of the water tank, the input end of the water pump is connected with the water tank, and the output end of the water pump is connected with the water main, a filter box is provided on one side of the heat exchange tank, and an air inlet pipe is installed on the outer wall of one side of the filter box.

[0006] Preferably, a thermometer is installed on the outer wall of the heat exchange tank above the drain pipe, and the detection end of the thermometer extends to the interior of the heat exchange tank to facilitate the detection of water temperature.

[0007] Preferably, a silica gel dehumidification layer is provided inside the exhaust port to facilitate dehumidification of the flue gas.

[0008] Preferably, the filter box is connected to the spiral heat exchange tube through a first conduit.

[0009] Preferably, a dirt collecting drawer is provided at the bottom of the filter box to facilitate the collection of large particles of impurities.

[0010] Preferably, a filter is installed inside the filter box to facilitate filtering the smoke and filtering out large particles of impurities inside.

[0011] Preferably, a rotating shaft is installed inside the filter, and a cleaning brush is installed at one end of the rotating shaft. The cleaning brush fits tightly against the filter, making it easy to clean the filter.

[0012] Preferably, a rotary drive member is installed at the top of the filter box, and the output end of the rotary drive member is connected to the other end of the rotating shaft through a pulley for driving the rotating shaft.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The flue gas enters the spiral heat exchange tube inside the heat exchange tank through the first conduit, and cold water is introduced into the heat exchange tank through the water inlet pipe. When the high-temperature flue gas flows inside the spiral heat exchange tube, it exchanges heat with the cold water inside the heat exchange tank. After absorbing heat, the cold water heats up and becomes hot water. The hot water is discharged through the drain pipe for production use. The thermometer detects the water temperature. By recovering the flue gas heat before spraying, the environmental protection is improved and the flue gas temperature can be reduced in advance.

[0015] The flue gas enters the purification channel inside the device body through the second conduit. Due to the arrangement of the partition and the through-hole, the purification channel has a serpentine structure, which reduces the movement speed of the flue gas and makes the flue gas move slowly in the purification channel. At the same time, the water pump draws out the purified water in the water tank and transports it to the water main. The purified water enters the spray branch pipe and is discharged through the nozzle. The water mist is in full contact with the flue gas. Since the flue gas is in contact with the water mist in each section of the purification channel, the purification treatment of the flue gas is more thorough and the purification effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic cross-sectional structural diagram of the present utility model.

[0017] Figure 2 This is a schematic diagram of the enlarged structure of the heat exchange tank of the present utility model.

[0018] Figure 3 It is a partial enlarged structural diagram of the device main body of the present utility model.

[0019] Figure 4 This is an enlarged structural diagram of the filter box of the present utility model.

[0020] Figure 5 This is an enlarged side view of the filter structure of the present invention.

[0021] In the figure: 1. Device body; 2. Drain pipe; 3. Heat exchange tank; 301. Water inlet pipe; 302. Thermometer; 303. Drain pipe; 4. Spiral heat exchange tube; 5. First conduit; 6. Filter box; 7. Air inlet pipe; 8. Second conduit; 9. Exhaust port; 10. Silica gel dehumidification layer; 11. Partition; 12. Through hole; 13. Water pump; 14. Water tank; 15. Leakage hole; 16. Open slot; 17. Water main pipe; 18. Purification channel; 19. Spray branch pipe; 20. Nozzle; 21. Drain drawer; 22. Filter; 23. Rotating shaft; 24. Cleaning brush; 25. Rotating drive member; 26. Pulley. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-5 , the utility model provides an embodiment: a garbage incineration flue gas environmental protection treatment device, including a device body 1, a heat exchange tank 3, a spiral heat exchange tube 4, a partition 11 and a spray branch 19, the partitions 11 are all fixed inside the device body 1, and a purification channel 18 is provided inside the device body 1 between the partitions 11, and the purification channel 18 is connected through the through hole 12 inside the partition 11, the device body 1 above the partition 11 is provided with an open groove 16, and the device body 1 below the partition 11 is provided with a leakage hole 15, the spray branch 19 is installed on the inner wall of the purification channel 18, and the outer wall of the spray branch 19 is installed with a nozzle 20 at equal intervals, and the device body 1 above the spray branch 19 is installed with a water supply main. Pipe 17, the water main pipe 17 is connected to the spray branch pipe 19, the top of the device body 1 is provided with an exhaust port 9, and the bottom end of the device body 1 is installed with a sewage pipe 2; the flue gas enters the purification channel 18 inside the device body 1 through the second conduit 8. Due to the arrangement of the partition 11 and the through hole 12, the purification channel 18 is a serpentine structure, which reduces the movement speed of the flue gas, so that the flue gas moves slowly in the purification channel 18. At the same time, the water pump 13 draws out the purified water in the water tank 14 and transports it to the water main pipe 17. The purified water enters the spray branch pipe 19 and is discharged through the nozzle 20. The water mist is in full contact with the flue gas. Since the flue gas is in contact with the water mist in each section of the purification channel 18, the purification treatment of the flue gas is more thorough and the purification effect is good.

[0024] The heat exchange tank 3 is arranged on one side of the device body 1, and the spiral heat exchange tube 4 is installed inside the heat exchange tank 3, and one end of the spiral heat exchange tube 4 is connected to the purification channel 18 through the second conduit 8. The outer walls of the top and bottom of the heat exchange tank 3 are respectively installed with a water inlet pipe 301 and a drain pipe 303; the filtered flue gas enters the spiral heat exchange tube 4 inside the heat exchange tank 3 through the first conduit 5, and cold water is introduced into the heat exchange tank 3 through the water inlet pipe 301. When the high-temperature flue gas flows inside the spiral heat exchange tube 4, it exchanges heat with the cold water inside the heat exchange tank 3. After absorbing heat, the cold water heats up and becomes hot water. The hot water is discharged through the drain pipe 303 for production use. The thermometer 302 detects the water temperature. By recovering the heat of the flue gas before spraying, environmental protection is improved and the temperature of the flue gas can be reduced in advance.

[0025] A water tank 14 is provided on the side of the device body 1 away from the heat exchange tank 3, and a water pump 13 is installed on the top of the water tank 14. The input end of the water pump 13 is connected to the water tank 14, and the output end of the water pump 13 is connected to the water main pipe 17; a filter box 6 is provided on one side of the heat exchange tank 3, and an air intake pipe 7 is installed on the outer wall of one side of the filter box 6; the flue gas generated by the incineration of garbage enters the filter box 6 through the air intake pipe 7, and the filter screen 22 filters out particulate impurities in the flue gas.

[0026] A thermometer 302 is installed on the outer wall of the heat exchange tank 3 above the drain pipe 303, and the detection end of the thermometer 302 extends to the interior of the heat exchange tank 3; a silica gel dehumidification layer 10 is provided inside the exhaust port 9; the filter box 6 is connected to the spiral heat exchange tube 4 through the first conduit 5; a dirt collecting drawer 21 is provided at the bottom of the filter box 6; a filter screen 22 is installed inside the filter box 6; a rotating shaft 23 is installed inside the filter screen 22, and a cleaning brush 24 is installed at one end of the rotating shaft 23, and the cleaning brush 24 fits tightly with the filter screen 22.

[0027] A rotating drive member 25 is installed at the top of the filter box 6, and the output end of the rotating drive member 25 is connected to the other end of the rotating shaft 23 through a pulley 26; the rotating drive member 25 drives the rotating shaft 23 to rotate through the pulley 26, so that the cleaning brush 24 rotates along the surface of the filter screen 22, brushing off the particulate impurities on the surface of the filter screen 22, and the dirt collecting drawer 21 collects the impurities. The dirt collecting drawer 21 can be pulled out to dump the impurities, thereby facilitating self-cleaning of the filter screen 22 and preventing the filter screen 22 from being blocked.

[0028] When the device is in operation, the flue gas generated by the incineration of garbage enters the filter box 6 through the air inlet pipe 7. The filter 22 filters out particulate matter and impurities in the flue gas. The filtered flue gas enters the spiral heat exchange tube 4 inside the heat exchange tank 3 through the first conduit 5. Cold water is introduced into the heat exchange tank 3 through the water inlet pipe 301. When the high-temperature flue gas flows inside the spiral heat exchange tube 4, it exchanges heat with the cold water inside the heat exchange tank 3. After absorbing heat, the cold water heats up and becomes hot water. The hot water is discharged through the drain pipe 303 for production use. The thermometer 302 monitors the water temperature. By recovering the heat of the flue gas before spraying, environmental protection is improved and the temperature of the flue gas can be reduced in advance. Then, the flue gas enters the purification channel 18 inside the device body 1 through the second conduit 8. Due to the arrangement of the partition 11 and the through hole 12, the purification channel 18 has a serpentine structure, which reduces the movement speed of the flue gas, causing the flue gas to move slowly in the purification channel 18.

[0029] At the same time, the water pump 13 draws out the purified water in the water tank 14 and transports it to the water main 17. The purified water enters the spray branch 19 and is discharged through the nozzle 20. The water mist is in full contact with the flue gas. Since the flue gas is in contact with the water mist in each purification channel 18, the purification treatment of the flue gas is more thorough and the purification effect is good. Then, the sewage is collected at the bottom of the device body 1 through the leakage hole 15, and the flue gas goes up to the top of the device body 1 through the open groove 16 and is discharged through the exhaust port 9. The silica gel dehumidification layer 10 dehumidifies the flue gas. Finally, the rotating drive member 25 drives the rotating shaft 23 to rotate through the pulley 26, so that the cleaning brush 24 rotates along the surface of the filter screen 22, brushing off the particulate impurities on the surface of the filter screen 22, and the dirt collecting drawer 21 collects the impurities. The dirt collecting drawer 21 can be pulled out to dump the impurities, thereby facilitating self-cleaning of the filter screen 22 and preventing the filter screen 22 from being blocked.

Claims

1. A garbage incineration flue gas environmental protection treatment device, characterized in that: The invention comprises a device body (1), a heat exchange tank (3), a spiral heat exchange tube (4), a partition (11) and a spray branch pipe (19), wherein the partitions (11) are all fixed inside the device body (1), and a purification channel (18) is provided inside the device body (1) between the partitions (11), and the purification channel (18) is communicated through a through hole (12) inside the partition (11), an opening groove (16) is provided inside the device body (1) above the partition (11), and a leakage hole (15) is provided inside the device body (1) below the partition (11), the spray branch pipe (19) is installed on the inner wall of the purification channel (18), and the outer wall of the spray branch pipe (19) is installed with a nozzle (20) at equal intervals, and a water main pipe (17) is installed inside the device body (1) above the spray branch pipe (19), and the water main pipe (17) is communicated with the spray branch pipe (19). The top of the device body (1) is provided with an exhaust port (9), and the bottom of the device body (1) is installed with a sewage pipe (2). The heat exchange tank (3) is provided on one side of the device body (1). The spiral heat exchange tube (4) is installed inside the heat exchange tank (3), and one end of the spiral heat exchange tube (4) is connected to the purification channel (18) through the second conduit (8). The outer walls of the top and bottom of the heat exchange tank (3) are respectively installed with a water inlet pipe (301) and a drainage pipe (303). The side of the device body (1) away from the heat exchange tank (3) is provided with a water tank (14), and the top of the water tank (14) is installed with a water pump (13). The input end of the water pump (13) is connected to the water tank (14), and the output end of the water pump (13) is connected to the water main pipe (17). A filter box (6) is provided on one side of the heat exchange tank (3), and an air inlet pipe (7) is installed on the outer wall of one side of the filter box (6).

2. The environmental protection device for treating waste incineration flue gas according to claim 1, characterized in that: A thermometer (302) is installed on the outer wall of the heat exchange tank (3) above the drain pipe (303), and a detection end of the thermometer (302) extends into the interior of the heat exchange tank (3).

3. The environmental protection device for treating waste incineration flue gas according to claim 1, characterized in that: A silica gel dehumidification layer (10) is provided inside the exhaust port (9).

4. The environmental protection device for treating waste incineration flue gas according to claim 1, characterized in that: The filter box (6) is connected to the spiral heat exchange tube (4) through the first conduit (5).

5. The environmental protection device for treating waste incineration flue gas according to claim 1 is characterized in that: A dirt collecting drawer (21) is provided at the bottom of the filter box (6).

6. The environmental protection device for treating waste incineration flue gas according to claim 1, characterized in that: A filter screen (22) is installed inside the filter box (6).

7. The environmental protection device for treating waste incineration flue gas according to claim 6, characterized in that: A rotating shaft (23) is installed inside the filter screen (22), and a cleaning brush (24) is installed at one end of the rotating shaft (23), and the cleaning brush (24) is tightly fitted to the filter screen (22).

8. The environmental protection device for treating waste incineration flue gas according to claim 1, characterized in that: A rotary drive member (25) is installed at the top end of the filter box (6), and the output end of the rotary drive member (25) is connected to the other end of the rotating shaft (23) via a pulley (26).

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