CN201340071Y

CN201340071Y - Multifunctional energy-saving and environment-friendly waste heat boiler

Info

Publication number: CN201340071Y
Application number: CNU2009200880400U
Authority: CN
Inventors: 贺全顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-07
Filing date: 2009-01-07
Publication date: 2009-11-04
Anticipated expiration: 2019-01-07

Abstract

The utility model discloses a multifunctional energy-saving and environment-friendly waste heat boiler which integrates the advantages of various dry and wet dust catchers and has the characteristics of high energy saving and sulfur and dust removal efficiencies, small resistance during operation, simple structure and low cost. The multifunctional energy-saving and environment-friendly waste heat boiler is characterized in that a waste heat pot is arranged at the tail end of a discharge flue of the boiler; an automatic water supplier is arranged at the upper end of the waste heat pot to fill cold water into the waste heat pot; and a plurality of one-return waste heat pipes communicated with the discharge flue are distributed in the waste heat tank to discharge the exhaust gas to a dust tank. Through the atomization by alkali water from a spray header, the impurities fall into a sedimentation tank, and the hot water in the waste heat pot, which is heated by the exhaust gas of the return waste heat pipes, returns to the boiler from a hot water discharge port, thus saving the water boiling time of the boiler and saving fuel by 30-40%. The purified fume is discharged from the flue by a draft fan through a plurality of twice-return waste heat pipes. After the processing by the waste heat boiler, the temperature of the fume can be reduced to 60-80 DEG C, so the service life of the draft fan can be prolonged and the discharged fume can not cause pollution.

Description

Multifunction energy-saving environmental protection waste heat boiler

Technical field

The utility model relates to a kind of boiler exhaust gas waste heat recovery desulfurization and dedusting energy saver, matching used with grate firing boiler specifically, the flue gas of boiler emission can be carried out the multifunction energy-saving environmental protection waste heat boiler that desulfurization, dedusting, purification, waste heat utilize again.

Background technology

At present, middle-size and small-size grate firing boiler to discharge in the course of the work a large amount of tail gas, since the discharge tail gas temperature higher, reach 350 ℃-450 ℃, contain certain corrosive substance in the discharge tail gas, a large amount of heat energy freely is thrown into and causes significant wastage in the atmosphere, cause severe contamination to regional environment simultaneously, influence resident living, destroy ecological environment.

Summary of the invention

The purpose of this utility model provides a kind of multifunction energy-saving environmental protection waste heat boiler that utilizes again with the matching used waste heat of grate firing boiler, combine the advantage of multiple dry-and wet-type deduster, have advantages such as the energy-saving desulfuration dedusting is efficient, running resistance is little, simple in structure and cheap.

The technical solution of the utility model is to realize like this; Multifunction energy-saving environmental protection waste heat boiler mainly is to be made of waste heat jar, 1 backhaul waste heat pipe, 2 backhaul waste heat pipes, dedusting pond, sedimentation basin, spray equipment, flues.It is characterized in that: the waste heat jar is arranged on boiler exhaust gas road tail end, be provided with automatic water replenishing device is used for injecting cold water usefulness to the waste heat jar in waste heat jar upper end, being furnished with a plurality of 1 backhaul waste heat pipe in the waste heat jar is connected with the boiler exhaust gas road, tail gas is through flue, be discharged to the dedusting pond through a plurality of 1 backhaul waste heat pipe, buck atomizing through a plurality of spray heads, impurity falls into sedimentation basin, utilize the hot water of the waste gas heating of backhaul waste heat pipe to get back to boiler in the waste heat jar through the hot-water outlet, shortened the time that boiler is heated up water, fuel savings 30%-40%.Flue gas after being purified is discharged through flue by air-introduced machine by a plurality of 2 backhaul waste heat pipes.The flue-gas temperature of handling through this sampling device has dropped to 60 ℃-80 ℃, has prolonged the service life of air-introduced machine, and the flue gas of being discharged can not pollute.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the structural representation of the utility model sedimentation basin

In the drawings: 1 boiler; 2 heat retrieving apparatus; 1 backhaul waste heat of 3 energy-saving dedustings pipe; 4 waste heat jars; 5 automatic water replenishing devices; 6 manholes; 7 hot-water outlets; 8 dedusting bases; 9 dedusting ponds; 10 sedimentation basins; 11 boiler water blow-down pipes; 12 evacuated tube; 13 inspection sockets; 14 water level meters; 15 thermometers; 16 scaling holes; 2 backhaul waste heats of 17 energy-saving dedustings pipe; 18 sewage draining exits; 19 alkaline-water boxs; 20 slag notches; 21 dedusting pond overfalls; 22 flues; 23 air-introduced machines; 24 chimneys; 25 spray equipments.

Heat retrieving apparatus 2 is located on boiler 1 exhaust pipe, and waste heat tank 4 is arranged on boiler 1 exhaust pipe End, waste heat tank 4 upper ends are provided with automatic water replenishing device 5, manhole 6, evacuated tube 12, arrange on the waste heat tank 4 Inspection socket 13, water-level gauge 14, thermometer 15, scaling hole 16, sewage draining exit 18 hot-water outlets 7 and inspection are arranged Mouth 13 is provided with a plurality of energy-saving dedusting 1 backhaul waste heat pipes and boiler 1 exhaust pipe in waste heat tank 4 Tail end be communicated with, 2 backhaul waste heats of a plurality of energy-saving dedustings pipe is communicated with flue 22; Waste heat tank 4 lower ends arrange Dedusting base 8, dedusting pond 9 and sedimentation basin 10 are arranged; Side at dedusting base 8 is provided with alkaline-water box 19; Be provided with spray equipment 25 in the dedusting pond; Air-introduced machine 23 is connected in flue 22 and chimney 24.

The specific embodiment

According to Fig. 1, shown in Figure 2 existing to the further narration of the utility model do;

Multifunction energy-saving environmental protection waste heat boiler is by 1 boiler; 2 heat retrieving apparatus; 1 backhaul waste heat of 3 energy-saving dedustings pipe; 4 waste heat jars; 5 automatic water replenishing devices; 6 manholes; 7 hot-water outlets; 8 dedusting bases; 9 dedusting ponds; 10 sedimentation basins; 11 boiler water blow-down pipes; 12 evacuated tube; 13 inspection sockets; 14 water level meters; 15 thermometers; 16 scaling holes; 2 backhaul waste heats of 17 energy-saving dedustings pipe; 18 sewage draining exits; 19 alkaline-water boxs; 20 slag notches; 21 dedusting pond overfalls; 22 flues; 23 air-introduced machines; 24 chimneys; 25 spray equipments are formed.Heat retrieving apparatus 2 is located on boiler 1 exhaust pipe, and the heat of exhaust pipe is made full use of, and is communicated with waste heat jar 4, and hot water is discharged in the waste heat jar 4; Waste heat jar 4 is arranged on the end of boiler 1 exhaust pipe, waste heat jar 4 upper ends are provided with automatic water replenishing device 5, manhole 6, evacuated tube 12, waste heat jar 4 is provided with inspection socket 13, water level meter 14, thermometer 15, scaling hole 16, sewage draining exit 18 and hot-water outlet 7, hot-water outlet 7 is connected in boiler 1, hot water in the waste heat jar 4 is injected boiler 1, shortened the time that boiler is heated up water, fuel savings 30%-40%.Being provided with 1 backhaul waste heat of a plurality of energy-saving dedustings pipe in waste heat jar 4 is communicated with the tail end of boiler 1 exhaust pipe, 1 backhaul waste heat of energy-saving dedusting pipe is discharged into the dedusting pond with boiler waste gas, and the spray of the buck of a plurality of spray heads is with the SO in the waste gas on spray equipment 25 ₂And No _xNeutralization, the impurity in the flue gas falls into sedimentation basin; The flue gas that air-introduced machine 23 is crossed desulfurization and dedusting is discharged through a plurality of energy-saving dedusting 2 backhaul waste heats pipes and flue 22, and the gas temperature of being discharged is 60 ℃-80 ℃ a pollution-free gas; Waste heat jar 4 lower ends are provided with dedusting base 8, dedusting pond 9 and sedimentation basin 10; The spray equipment 25 that is provided with in a side of dedusting base 8 is provided with alkaline-water box 19 and dedusting pond 9 is communicated with; Dedusting pond 9 is provided with sewage draining exit 18 and dedusting pond overfall 21; Sedimentation basin 10 be located at dedusting pond 9 below, be closed cell not, as shown in Figure 2, one end of sedimentation basin 10 lower surface slag notches 20 is lower, one end of boiler water blow-down pipe 11 is higher, the design of boiler water blow-down pipe 11 oblique cambers impacts the impurity in the sedimentation basin 10 to the slag notch direction, convenient sedimentary discharging; Air-introduced machine 23 is connected in flue 22 and chimney 24, and the tail gas after the desulfurization and dedusting cooling is discharged.

Use the utility model multifunction energy-saving environmental protection waste heat boiler can save the expense of building soft water pond, processing water tank etc., originally adding cold water in the boiler needs 2 hours ability boiled, now as long as 10-30 minute just can be boiled, and 30%-40% capable of saving fuel.The flue-gas temperature of utilizing this device to handle has dropped to 60 ℃-80 ℃, has prolonged the service life of air-introduced machine, and the residual air of being discharged meets boiler air pollution emission standard.

Claims

1, multifunction energy-saving environmental protection waste heat boiler is by boiler (1); Heat retrieving apparatus (2); 1 backhaul waste heat of energy-saving dedusting pipe (3); Waste heat jar (4); Automatic water replenishing device (5); Manhole (6); Hot-water outlet (7); Dedusting base (8); Dedusting pond (9); Sedimentation basin (10); Boiler water blow-down pipe (11); Evacuated tube (12); Inspection socket (13); Water level meter (14); Thermometer (15); Scaling hole (16); 2 backhaul waste heats of energy-saving dedusting pipe (17); Sewage draining exit (18); Alkaline-water box (19); Slag notch (20); Dedusting pond overfall (21); Flue (22); Air-introduced machine (23); Chimney (24); Spray equipment (25) is formed; It is characterized in that: be provided with a plurality of energy-saving dedusting 1 backhaul waste heat pipes and 2 backhaul waste heats of a plurality of energy-saving dedusting pipe in the waste heat jar (4); Waste heat jar (4) lower end is provided with dedusting base (8), dedusting pond (9) and sedimentation basin (10); The spray equipment (25) that is provided with in a side of dedusting base (8) is provided with alkaline-water box (19) and dedusting pond (9) is communicated with; Dedusting pond (9) is provided with sewage draining exit (18) and dedusting pond overfall (21); Sedimentation basin (10) be located at dedusting pond (9) below.

2, multifunction energy-saving environmental protection waste heat boiler according to claim 1, it is characterized in that: an end of sedimentation basin (10) lower surface slag notch (20) is low than an end of boiler water blow-down pipe (11).

3, multifunction energy-saving environmental protection waste heat boiler according to claim 1, it is characterized in that: heat retrieving apparatus (2) is located on the boiler waste gas delivery pipe.

4, multifunction energy-saving environmental protection waste heat boiler according to claim 1 is characterized in that: the oblique camber design of boiler water blow-down pipe.