Waste heat treatment device for boiler flue gas

Abstract

The utility model discloses a boiler flue gas waste heat treatment device which comprises a treatment box, a flue gas inlet and a flue gas outlet, a guide plate is fixedly connected to the side, close to the flue gas inlet, of the treatment box, clamping plates are fixedly connected to the guide plate, a dustproof net is arranged between the two clamping plates in a contact mode, and the treatment box is movably connected to the dustproof net in an inserted mode. The upper end of the treatment box is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a screw rod, the screw rod is in threaded connection with movable blocks, and one of the movable blocks is fixedly connected with an electric telescopic rod. Then a driving motor drives a screw rod to rotate, meanwhile, an electric telescopic rod and a spring rod enable a water collecting pipe to transversely move, dust adhering to a dustproof net can be cleaned, the dustproof net is knocked through an electric push rod and a knocking ball, water can fall back to a backflow water area, and therefore dust desorption is achieved, and continuity of boiler flue gas treatment is facilitated.

Description

Technical Field

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

[0002] During the combustion process, the boiler will produce a large amount of high-temperature flue gas. The flue gas contains rich heat energy. Direct emission will cause energy waste and environmental pollution. The waste heat treatment of boiler flue gas is an important structure to improve energy utilization efficiency and reduce environmental pollution. During the flue gas treatment, the flue gas contains a large amount of sulfur-containing and nitrate-containing dust particles, which will cause adhesion and affect the filtering effect of the filter and activated carbon.

[0003] According to the Chinese patent announcement number CN221513989U "A device for treating waste heat of boiler flue gas", it mainly describes that through the spraying component, the staff fills water into the inside of the water tank through the filling pipe, and then starts the water pump to transport the water into the delivery pipe through the suction pipe, and then sprays it out through the nozzle, so that the smoke and particulate matter in the flue gas can be separated during the waste heat treatment of the flue gas, thereby avoiding the blockage of the pipeline due to long-term use, so it will not affect the use of the staff. By setting the wall scraping component, the inner wall of the dust suppression box can be The dust collecting box is cleaned, so there is no need for the staff to clean it later, thereby reducing the workload of the staff, and avoiding the smoke and particulate matter from adhering to the inner wall of the dust collection box for a long time, so it will not cause damage to the inner wall of the dust collection box, and increase the service life of the dust collection box. By setting the purification component, the harmful gases in the flue gas can be effectively purified, thereby avoiding the harmful gases from being discharged into the air, so it will not cause harm to the health of the staff, and it is more conducive to the use of the staff. In the process of treating the boiler flue gas, the sulfur and nitrate dust in the flue gas will stick to the filter net, and disassembly and cleaning will affect the continuous work of the boiler flue gas treatment.

[0004] Therefore, a device for treating waste heat of boiler flue gas is proposed to solve the problem that during the treatment of boiler flue gas, dust containing sulfur and nitrate in the flue gas will stick to the filter net, and disassembly and cleaning will affect the continuous operation of boiler flue gas treatment. Utility Model Content

[0005] The technical problem to be solved by the present invention is that in the process of treating boiler flue gas, dust containing sulfur and nitrate in the flue gas will stick to the filter net, and disassembly and cleaning will affect the continuous operation of the boiler flue gas. Therefore, a device for treating waste heat of boiler flue gas is proposed.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a device for treating waste heat of boiler flue gas, comprising a treatment box, a smoke inlet and a smoke outlet, wherein the treatment box is fixedly connected to a guide plate on the side close to the smoke inlet, a card plate is fixedly connected to the guide plate, a dustproof net is in contact with the two card plates, the treatment box is movably plugged into the dustproof net, the upper end of the treatment box is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a screw, a moving block is threadedly connected to the screw, one of the moving blocks is fixedly connected to an electric telescopic rod, the electric telescopic rod A water collecting pipe is fixedly connected to one side of the rod, a spring rod is fixedly connected to one side of the water collecting pipe, the spring rod contacts another moving block, a nozzle is evenly fixedly connected to the side of the water collecting pipe close to the dustproof net, a telescopic hose is fixedly connected to one side of the water collecting pipe, one end of the telescopic hose is fixedly connected to a water pump, the water pump is fixedly connected to one side of the treatment box, a return water area is provided on the bottom side of the treatment box, the water pump is connected to the return water area through a hose, an electric push rod is fixedly connected in the treatment box, a knocking ball is fixedly connected to the output end of the electric push rod, and the knocking ball is in contact with the dustproof net.

[0007] As a preferred technical solution of the present invention, an inclined slot is provided on one side of the processing box, and a filter screen is inserted into the inclined slot. The filter screen can filter dust particles in the water body.

[0008] As an optimal technical solution of the present invention, the processing box is fixedly connected to a connecting plate on the upper side of the inclined groove, and a positioning rod is threadedly connected to the connecting plate. The positioning rod is inserted into the filter screen. By setting the positioning rod and the connecting plate, the filter screen can be easily installed and disassembled.

[0009] As an optimal technical solution of the present invention, a sealing plate is fixedly connected to the upper side of the filter screen, and the sealing plate contacts one side of the processing box. By setting the sealing plate, dust particles are prevented from overflowing from the upper side of the dustproof screen.

[0010] As an optimal technical solution of the present invention, the upper end of the processing box is fixedly connected to a baffle, the baffle is fixedly connected to the dustproof net, the upper end of the processing box is fixedly connected to a limiting strip, a limiting plate is inserted into the limiting strip, and the limiting plate is in contact with the baffle. By setting the limiting strip and the baffle, the dustproof net can be limited.

[0011] The utility model has the following advantages: a dust-proof net is set in the treatment box to block the dust particles in the flue gas, and then the screw is driven to rotate by the driving motor, and at the same time the electric telescopic rod and the spring rod make the water collecting pipe move laterally, so as to clean the dust stuck on the dust-proof net, and the dust-proof net is knocked by the electric push rod and the knocking ball, so that the water body can fall back to the return water area, thereby desorbing the dust, which is convenient for the continuity of boiler flue gas treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic side sectional structural diagram of a boiler flue gas waste heat treatment device according to a preferred embodiment of the present invention;

[0013] Figure 2 This is a schematic diagram of the front view of the structure of a water collecting pipe for a boiler flue gas waste heat treatment device according to a preferred embodiment of the present invention;

[0014] Figure 3 This is an enlarged structural diagram of point A of a boiler flue gas waste heat treatment device in a preferred embodiment of the present invention.

[0015] Explanation of the accompanying reference numerals: 1. Processing box; 2. Guide plate; 3. Smoke inlet; 4. Smoke outlet; 5. Card plate; 6. Dust screen; 7. Screw; 8. Moving block; 9. Water collecting pipe; 10. Nozzle; 11. Telescopic hose; 12. Water pump; 13. Electric push rod; 14. Knocking ball; 15. Chute; 16. Filter; 17. Connecting plate; 18. Positioning rod; 19. Sealing plate; 20. Baffle; 21. Limiting strip; 22. Limiting plate; 23. Electric telescopic rod; 24. Spring rod. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Please refer to Figure 1-3The device shown is used for treating waste heat of boiler flue gas, comprising a treatment box 1, a smoke inlet 3 and a smoke outlet 4. A guide plate 2 is fixedly connected to the side of the treatment box 1 near the smoke inlet 3, and a card plate 5 is fixedly connected to the guide plate 2. The card plate 5 can connect to the dust screen 6. There is a dust screen 6 in contact between the two card plates 5. The dust screen 6 is movably connected to the treatment box 1. The upper end of the treatment box 1 is fixedly connected to a driving motor, which drives the screw 7 to rotate, so that the moving block 8 can move up and down. At the same time, the electric telescopic rod 23 extends and contracts, so that the spring rod 24 extends and contracts, which can drive the water collecting pipe 9 to move horizontally, so that it is convenient for the nozzle 10 to spray water to the dust screen 6. The output end of the driving motor is fixedly connected to the screw 7, and the moving block 8 is threadedly connected to the screw 7. One of the moving blocks 8 is fixedly connected to the electric telescopic Rod 23, one side of the electric telescopic rod 23 is fixedly connected to the water collecting pipe 9, one side of the water collecting pipe 9 is fixedly connected to the spring rod 24, the spring rod 24 contacts another moving block 8, the water collecting pipe 9 is evenly fixedly connected to the nozzle 10 near the dustproof net 6, one side of the water collecting pipe 9 is fixedly connected to the telescopic hose 11, one end of the telescopic hose 11 is fixedly connected to the water pump 12, the water pump 12 is fixedly connected to one side of the treatment box 1, and a return water area is provided on the bottom side of the treatment box 1. The water pump 12 is connected to the return water area through a hose. An electric push rod 13 is fixedly connected in the treatment box 1, and a knocking ball 14 is fixedly connected to the output end of the electric push rod 13. The electric push rod 13 drives the knocking ball 14 to knock on the dustproof net 6, which can desorb dust and water from the dustproof net 6 and separate the sticky dust. The knocking ball 14 contacts the dustproof net 6.

[0018] The filter screen 16 is plugged into the chute 15 , and the chute 15 is located at one side of the treatment box 1 . By arranging the filter screen 16 , filtration of the water body can be provided.

[0019] Among them, a positioning rod 18 is inserted into one side of the filter screen 16, and the positioning rod 18 is threadedly connected to the connecting plate 17. The connecting plate 17 is fixedly connected to one side of the processing box 1. The connecting plate 17 is located on the inclined groove 15. By setting the positioning rod 18, the filter screen 16 can be separated from the processing box 1 by disassembly and assembly.

[0020] One side of the processing box 1 is in contact with the sealing plate 19 , and the sealing plate 19 is fixedly connected to one side of the upper end of the filter screen 16 . By providing the sealing plate 19 , dust can be prevented from overflowing from the upper side of the dustproof screen 6 .

[0021] Among them, the baffle 20 is in contact with the limiting plate 22, the limiting plate 22 is plugged into the limiting strip 21, the limiting strip 21 is fixedly connected to the upper end of the processing box 1, the dustproof net 6 is fixedly connected to the baffle 20, and the baffle 20 is fixedly connected to the upper end of the processing box 1. By setting the limiting strip 21 and the limiting plate 22, the baffle 20 can be limited to improve the sealing effect of the upper side of the dustproof net 6.

[0022] Working principle: The flue gas enters the treatment box 1 from the smoke inlet 3, and then passes through the dust-proof net 6 for filtration. Some of the sulfur-containing and nitrate-containing dust in the flue gas adheres to the dust-proof net 6. The screw 7 is driven by the driving motor to rotate, and the movable block 8 moves up and down. At the same time, the water pump 12 draws water from the return water area through the telescopic hose 11 into the water collecting pipe 9, and then is sprayed out through the nozzle 10 and sprayed onto the dust-proof net 6. Then the electric push rod 13 continuously extends and contracts, driving the knocking ball 14 to knock on the dust-proof net 6, generating vibration, so that the water droplets and dust stuck on the dust-proof net 6 are desorbed and fall onto the filter net 16 under gravity conditions. After filtration, the water enters the return water area. After the boiler flue gas treatment is completed, the positioning rod 18 and the limit plate 22 are removed to facilitate the disassembly and cleaning of the filter net 16 and the dust-proof net 6.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

[0024] Other parts of the present invention that are not described in detail belong to the prior art and will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for treating waste heat of boiler flue gas, comprising a treatment box (1), a smoke inlet (3) and a smoke outlet (4), characterized in that: The treatment box (1) is fixedly connected to a guide plate (2) on one side close to the smoke inlet (3), a card plate (5) is fixedly connected to the guide plate (2), a dust screen (6) is in contact between the two card plates (5), the dust screen (6) is movably connected to the treatment box (1), the upper end of the treatment box (1) is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a screw rod (7), a moving block (8) is threadedly connected to the screw rod (7), one of the moving blocks (8) is fixedly connected to an electric telescopic rod (23), one side of the electric telescopic rod (23) is fixedly connected to a water collecting pipe (9), and one side of the water collecting pipe (9) is fixedly connected to a spring rod (24). The spring rod (24) contacts another moving block (8), and the water collecting pipe (9) is evenly fixedly connected to a nozzle (10) on one side close to the dustproof net (6). A telescopic hose (11) is fixedly connected to one side of the water collecting pipe (9), and one end of the telescopic hose (11) is fixedly connected to a water pump (12). The water pump (12) is fixedly connected to one side of the treatment box (1). A return water area is provided on the bottom side of the treatment box (1), and the water pump (12) is connected to the return water area through a hose. An electric push rod (13) is fixedly connected inside the treatment box (1), and an output end of the electric push rod (13) is fixedly connected to a knocking ball (14), and the knocking ball (14) contacts the dustproof net (6).

2. The device for treating waste heat of boiler flue gas according to claim 1, characterized in that: A chute (15) is provided on one side of the processing box (1), and a filter screen (16) is inserted into the chute (15).

3. The device for treating waste heat of boiler flue gas according to claim 2, characterized in that: The processing box (1) is located on the upper side of the chute (15) and is fixedly connected to a connecting plate (17). A positioning rod (18) is threadedly connected to the connecting plate (17), and the positioning rod (18) is plugged into the filter screen (16).

4. The device for treating waste heat of boiler flue gas according to claim 3, characterized in that: A sealing plate (19) is fixedly connected to one side of the upper end of the filter screen (16), and the sealing plate (19) is in contact with one side of the processing box (1).

5. The device for treating waste heat of boiler flue gas according to claim 4, characterized in that: The upper end of the processing box (1) is fixedly connected to a baffle (20), the baffle (20) is fixedly connected to a dust screen (6), the upper end of the processing box (1) is fixedly connected to a limit strip (21), a limit plate (22) is inserted into the limit strip (21), and the limit plate (22) is in contact with the baffle (20).

Images