CN202835409U

CN202835409U - Smoke dust waste-heat utilization and dust removing device of low-capacity boiler

Info

Publication number: CN202835409U
Application number: CN 201220427673
Authority: CN
Inventors: 何树香
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-20
Filing date: 2012-08-20
Publication date: 2013-03-27
Anticipated expiration: 2022-08-20

Abstract

Provided is a smoke dust waste-heat utilization and dust removing device of a low-capacity boiler. A boiler smoke vent is connected with a water heating tank, a steel pipe inner enables high-temperature smoke to pass through, water inside the water heating tank is heated, and when the boiler needs water supplement, a water pump enables high-temperature water to be added inside the boiler. Due to the fact that the high-temperature water enters the boiler, the heating time of the boiler is shortened, fuel is saved, and the smoke with the temperature being lowered by the water tank is delivered into a water mist dust remover by a centrifugal fan. Smoke dust is slowed down by being pulled back by a plurality of stages of baffles, and meanwhile the smoke dust is washed through dense water mist, dust particles sink into the water by trapping of the water mist, dust mud is accumulated on the bottom and is cleaned regularly by a spiral discharging machine. According to the smoke dust waste-heat utilization and dust removing device of the low-capacity boiler, the supplementary water of the boiler is heated, and meanwhile the temperature of the smoke dust is lowered. Therefore hazardous substances such as sulfur dioxide, nitrogen oxides and carbon dioxide in the smoke dust are completely filtered, and dust removing and cleaning efficiency is improved. The smoke dust waste-heat utilization and dust removing device of the lower-capacity boiler is simple in structure, capable of saving energy, easy to maintain, low in implementation cost and convenient to operate and use.

Description

A kind of miniature boiler flue dust UTILIZATION OF VESIDUAL HEAT IN and dust arrester

Technical field

The utility model relates to a kind of miniature boiler flue dust UTILIZATION OF VESIDUAL HEAT IN and dedusting technology field, especially relates to a kind of miniature boiler flue dust UTILIZATION OF VESIDUAL HEAT IN and dust arrester.

Background technology

Coal-burning boiler is still adopted in now a lot of small-sized manufacturing enterprises and unit heating, further investigation reveals that; The part boiler is not installed cleaner, although what have has installed cleaner, very poor in the dedusting effect: a large amount of black flue dust are discharged to sky, caused atmosphere pollution, the high-temperature smoke waste heat that boiler combustion produces is not utilized substantially, wasted huge heat energy, existing cleaner is (such as water film dedusting, cyclone dust removal, electrostatic precipitation, bag-type dusting etc.), has complex structure, the operation troubles rate is high, sulfur dioxide in the discharging flue dust, oxynitrides, the harmful substance purifying rates such as carbon dioxide are low, waste energy, the shortcomings such as inconvenient maintenance, a kind of miniature boiler flue dust UTILIZATION OF VESIDUAL HEAT IN and dust arrester; Take full advantage of high-temperature smoke waste heat that boiler combustion produces, the supplementing water of boiler is carried out preheating, reduced the flue dust temperature, be conducive to the further processing of flue dust by heater, utilize multistage dividing plate to turn back flue dust is slowed down, intensive water smoke carries out multistage washing to flue dust, and the flue gas that boiler is discharged has obtained sufficient purification.

Summary of the invention

In order to solve the at present waste of existing boiler smoke waste heat and the deficiency of cleaner, the utility model provides a kind of reasonable in design, simple in structure, energy savings, maintenance easy, can effectively utilize boiler afterheat, the udst separation boiler smoke; A kind of miniature boiler flue dust UTILIZATION OF VESIDUAL HEAT IN and dust arrester.

The technical scheme that its technical problem that solves the utility model adopts is: connect heating water tank at boiler smoke outlet; Having branched steel pipe, high-temperature flue gas in the water tank is the ion-exchanger treated water by the water in the steel tube inner hole heating water tank, water in the water tank, when boiler needs supplementing water, squeeze into boiler by the high-temperature water of pump handle heating water tank, so because what enter boiler be high-temperature water time of having reduced the boiler heating, saved fuel, the flue gas that has been reduced temperature by heating water tank is sent to mist dust remover by centrifugal blower; Flue dust is turned back through multistage dividing plate slows down flue dust, intensive water smoke carries out multistage washing to flue dust simultaneously, and the flue gas that boiler is discharged has obtained sufficient purification, and grit is captured submerged by water smoke, and dirt mud is deposited on the bottom, has spiral discharging machine regularly to clear up.

The beneficial effects of the utility model are: use the utility model, utilize boiler smoke waste-heat boiler to replenish water, improved the boiler efficiency of heating surface, saved again the cost of fuel, reduced again simultaneously the flue dust temperature, be conducive to the purification of flue dust, owing to adopting multistage dividing plate to turn back flue dust is slowed down, intensive water smoke carries out multistage washing to flue dust, make the sulfur dioxide in the discharging flue dust, oxynitrides, the harmful substances such as carbon dioxide reduce greatly, so the utility model efficiency of dust collection is high, simple in structure, energy savings, economic environmental protection, safeguard that easily implementation cost is low, operate extremely easy to use.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Accompanying drawing is structural representation of the present utility model.

Among the figure; 1. heating water tank, 2. air-introduced machine, 3. mist dust remover, 4. gas approach, 5. flue gas pipe, 6. air-introduced machine import, 7. air-introduced machine smoke exhaust pipe, 8. smoke exhaust pipe, 9. conveying worm, 10. conveyer discharge gate, 11. sparge pipes, 12. upper guard-plates, 13. under shield, 14. deduster water levels, 15. overflow pipes, 16. the recirculated water sedimentation basin, 17. water circulating pumps, 18. water pipes, 19. ion water treatment device, 20. storage tanks, 21. running water pipes, 22. the water treatment drainpipe, 23. heating water tank supply-water pumps, 24. check valves, 25. feed pipe, 26. boiler water supply pumps, 27. vapor cocks, 28. level sensor, 29. cover plates.

The specific embodiment

The utility model comprises in the accompanying drawing; Heating water tank (1), water tank is rectangle welded-steel plate construction (the available stainless steel material of heating water tank (1) flue gas pipe (5), extend working time to avoid ablating), inside is passed through in water tank by branched steel pipe, high-temperature flue gas is by the water in the steel tube inner hole heating water tank, air-introduced machine (2) is the efficient centrifugal blower fan, mist dust remover (3) is turned back for multistage dividing plate flue dust is slowed down, produce intensive water smoke by sparge pipe (11) simultaneously flue dust is carried out multistage washing, the form of soot dust granule submerged is formed, the high-temperature flue gas that boiler is discharged is because the effect of air-introduced machine (2), enter the interior flue gas pipe (5) of heating water tank (1) by gas approach (4), water in the heating water tank (1) is heated, after flue-gas temperature by heating water tank (1) is cooled, by air-introduced machine (2), enter mist dust remover (3) by air-introduced machine smoke exhaust pipe (7), overflow pipe (15) has guaranteed the stable of deduster water level (14), when constantly the water level of spray raises by overflow pipe (15) discharged to recirculated water sedimentation basin (16), through precipitation step by step water by water pump (17) by water pipe (18), in the hole of sparge pipe (11), spray; Sparge pipe (11) is stainless steel tube, is drilled with intensive aperture at circumference and the whole sparge pipe of pipe, when start is used water be sprayed onto baffle surface reflection, whole exhaust gases passes by water smoke shroud, flue dust by Multi-stage reciprocal slow down, water smoke washing, most flue dust are captured submerged, the harmful substances such as most sulfur dioxide, oxynitrides, carbon dioxide are dissolved in the water by the water smoke washing; The boiler smoke of treated cleaning is discharged by smoke exhaust pipe (8), the bottom of mist dust remover (3) is that tapered a, end is U-shaped skewed slot, conveying worm (9) is installed, the dirt mud in the mist dust remover (3) is regularly cleared up, discharged by the conveyer discharge gate (10) of conveying worm (9), for avoiding corrosion; The viscous applique hilllock stone slab of mist dust remover (3), upper guard-plate (12), under shield (13) all adopts granite in slab, dismountable cover plate (29) is arranged at mist dust remover (3) top, be used for maintenance and cleaning inside, when boiler water level decline needs supplementing water, boiler water supply pump (26) starts, hot water in the heating water tank (1) is thrown into boiler, because the water that enters boiler is the high-temperature water through flue gas, can greatly reduce the time of boiler heating, improved the boiler efficiency of heating surface, saved again the cost of fuel, when the water level in the heating water tank (1) descends, heating water tank level sensor (28) action, start heating water tank supply-water pump (23), process ion water treatment device (19) treated water in the water tank (20), squeeze into heating water tank (1) by check valve (24) feed pipe (25), heating water tank level sensor (28) control boiler supply-water pump (23) was shut down when water was full, when the water level in processing water tank (20) descends; Ion water treatment device (19) starts, running water by running water pipe (21) enter ion water treatment device (19), treated water enters through water treatment drainpipe (22) and processes water tank (20), the gas that produces during flue gas water tank (1) heating by vapor cock (27) discharge, with assurance safety.

Claims

1. a miniature boiler flue dust UTILIZATION OF VESIDUAL HEAT IN and dust arrester; Connected to form successively by heating water tank (1), air-introduced machine (2), mist dust remover (3), it is characterized in that; The high-temperature flue gas that boiler is discharged is because the effect of air-introduced machine (2), enter the endoporus of the flue gas pipe (5) in the heating water tank (1) by gas approach (4), water in the heating water tank (1) is heated, after the temperature of the flue gas by heating water tank (1) is cooled, by air-introduced machine (2), enter mist dust remover (3) by air-introduced machine smoke exhaust pipe (7), overflow pipe (15) has guaranteed the stable of deduster water level (14), when constantly the water level of spray raises by overflow pipe (15) discharged to recirculated water sedimentation basin (16), through the water of precipitation step by step by water pump (17) by water pipe (18), in the hole of sparge pipe (11), spray; Sparge pipe (11) is stainless steel tube, circumference and whole sparge pipe at pipe are drilled with intensive aperture, water is sprayed onto the baffle surface reflection when start is used, whole exhaust gases passes is shrouded by water smoke, flue dust slows down by Multi-stage reciprocal, the water smoke washing, the overwhelming majority flue dust submerged that is captured, the boiler smoke of treated cleaning is discharged by smoke exhaust pipe (8), and the bottom of mist dust remover (3) is tapered, one end is that U-shaped skewed slot is installed conveying worm (9), dirt mud in the mist dust remover (3) is cleared up, conveyer discharge gate (10) by conveying worm (9) is discharged.

2. a kind of miniature boiler flue dust UTILIZATION OF VESIDUAL HEAT IN according to claim 1 and dust arrester is characterized in that; For avoiding corrosion; The viscous applique hilllock stone slab of mist dust remover (3), upper guard-plate (12), under shield (13) all adopt granite in slab, and dismountable cover plate (29) is arranged at mist dust remover (3) top, is used for maintenance and cleaning inside.