CN2257899Y

CN2257899Y - Quick fitting chain boiler coal feeding appts.

Info

Publication number: CN2257899Y
Application number: CN 96227434
Authority: CN
Inventors: 马惠清
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-25
Filing date: 1996-03-25
Publication date: 1997-07-16
Anticipated expiration: 2006-03-25

Abstract

The utility model relates to a coal feeding device for chain boilers, which is a coal feeding device for rapid chain boilers. The utility model comprises a coal guiding plate, an elastic coal baffling mechanism and a coal separation mechanism. The coal flow sliding down along the inclined coal guiding plate in a coal feeding scuttle can be separated under the actions of a coal scraping plate of the coal separation mechanism, a rotating coal separation fluted disc and a movable coal baffling plate of a movable coal baffling mechanism, and therefore, three-layered structure coal layer can be formed on a fire grate. So the utility model has the advantages of good ventilation property, quick ignition, sufficient burning and can save energy and reduce pollution.

Description

The fast-assembly link chain boiler coal feeder

The utility model relates to the chain-grate boiler coal feeder, is particularly suitable for the fast-assembly link chain boiler coal feeder.

The present coal feeder of the fast-assembly link chain boiler that uses, have simple in structure, volume is little, be difficult for taking place disconnected coal accident characteristic, be widely adopted.But the ature of coal of its designing requirement is relatively stricter, and the coal of market supply now is too many because of the break flour shape, often surpasses its prescribed limit limit, is pushed by the coal flashboard again when entering burner hearth, and the coal seam of formation is too closely knit, is difficult for ventilating.In combustion process, too much powder shape is clipped in the coal seam, causes burning insufficient, and the coking slag makes a large amount of combustibles drain with slag easily, and increases the pernicious gas generation.Common solution is by strengthening the blow rate required and the coal seam of the next loose burning that manually pokes fire, and can make a large amount of cold airs enter burner hearth like this, reduced boiler thermal output on the one hand, reduce the nominal output of boiler, a large amount of on the other hand fine-powdered coals are taken up by air blast, enter the flue discharging, increased pollution again atmosphere.

For solving this phenomenon, ideal method is to carry out coal loose in coal supply equipment or give layering at present.The inventor can effectively solve above-mentioned phenomenon utilizing branch coal device that the coal in the coal bunker is divided into three layers of coal feeder that is distributed on the fire grate by granular size described in the Chinese patent ZL9523323.9 " just changeing chain grate firing boiler coal feeder ".But it is to utilize the coal bunker coal supply that the described coal of this patent is given device coal supply mode, and successively coal supply has enough spaces to add and puts some parts in its coal feeder.And the fast-assembly link chain boiler equipment volume is less relatively, and coal supply is interrupted by elevator, adds to put parts and can tie up the confined space, and disconnected coal accident takes place easily in coal supply.Therefore in fast-assembly link chain boiler coal supply equipment, implement this patented technology certain difficulty is arranged.

The purpose of this utility model is at above-mentioned the deficiencies in the prior art, and a kind of coal feeder of suitable fast-assembly link chain boiler is provided, and is implemented in to form rational coal seam on the fire grate, makes it abundant burning, reduces labor intensity, and reduces flue dust and noxious gas emission.

The utility model fast-assembly link chain boiler coal feeder, include coal guide plate, elasticity retaining coal mechanism and coal distributing machine structure, the technical scheme that realizes the utility model purpose is: coal guide plate tilts fixedly to place upper end in the feeding-coal bucket, is formed with coal dropping port between lower end and the feeding-coal bucket antetheca; The active catch coal antiposition of elasticity retaining coal mechanism is in coal guide plate lower end one side, movable spillplate is that an above polylith plate is individually fixed in movable guide rod front end, on the movable guide rod behind the pocketed springs other end insert on fixed support by adjusting nut, movable spillplate upper end is hinged with fixed support; The coal distributing machine structure is arranged at coal dropping port below, is that fixed cover is equipped with two above coal separating tooth dishes on minute coal device axle, all disposes the rear end and be fixed in coal scraper plate on the fixed mount between the space, top between every adjacent two coal separating tooth dishes.

Use the utility model fast-assembly link chain boiler coal feeder, pour into coal in the feeding-coal bucket along the downward landing of coal guide plate to coal dropping port, the coal that the bumy coal mouth falls, tiny powder shape coal is easily by coal scraper plate two side clearance vertical drops, the coal separating tooth dish is with a minute coal device axle rotation, concavo-convex alternate coal separating tooth dish is loosening with the coal stream that falls in rotation, on the one hand loosening coal stream is favourable to be mixed the powder shape coal that is clipped in the coal stream and separates between the coal separating tooth dish and gap vertical drop between the coal scraper plate, block on the other hand coal separates to fall with the appearance coal groove rotation small coal that coal separating tooth dish recess forms, the coal separating tooth dish that coarse coal is rotated backward throwing to the fire grate root, like this at fire grate in burner hearth moves, on fire grate, just form big lumped coal at bottom, fritter mixing coal is in the middle level, the powder Paniculate coal enters burner hearth in the three-decker coal seam on upper strata, has good permeability, it is fast to ignite, fired state is good, need not manually to poke fire, coal burning is abundant, minimizing is to the requirement of the blow rate required, both had and can save energy, guarantee boiler rated capacity, can reduce good effect again to the pollution of environment, also have simple and compact for structure, be convenient to the operation, install, adjust, realized the purpose of this utility model preferably.

Below in conjunction with accompanying drawing the utility model and embodiment are described further.

Fig. 1 is the structural representation of an embodiment of the utility model;

Fig. 2 for A-A among Fig. 1 to looking the part section structural representation;

Fig. 3 is the local structure for amplifying schematic diagram of B among Fig. 2.

As embodiment of the present utility model, its structural representation as Figure 1-3, include coal guide plate, elasticity retaining coal mechanism and coal distributing machine structure, coal guide plate 3 tilts fixedly to place feeding-coal bucket 1 internal upper part, the favourable coal of pouring in the feeding-coal bucket 1 glides along coal guide plate 3, is formed with coal dropping port 7 between coal guide plate 3 lower ends and feeding-coal bucket 1 antetheca; Can also take coal guide plate 3 upper ends to be fixed on feeding-coal bucket 1 wall by fixing hinge 2, the locating rack 5 that coal guide plate 3 lower ends are provided with is plugged in the deep-slotted chip breaker 4 that is provided with on the feeding-coal bucket 1 both sides wallboard, thereby can adjust the fixedly inclination of coal guide plate 3 in feeding-coal bucket 1, change the size of coal dropping port 7, can rationally adjust coal-supplying amount, to adapt to different combustion requirements; Elasticity spillplate 6 is that an above polylith plate is individually fixed in movable guide rod 8 front ends, and the pocketed springs 9 back other ends are inserted on fixed support 10 by adjusting nut 11 on the movable guide rod 8, and movable spillplate 6 upper ends and fixed support 10 are hinged; The coal distributing machine structure is arranged at coal dropping port 7 belows, is that fixed cover is equipped with two above coal separating tooth dishes 15 on minute coal device axle 16, all disposes the rear end and be fixed in coal scraper plate 13 on the fixed mount 12 between the space, top between every adjacent two coal separating tooth dishes 15; Divide coal device axle 16 can adopt many ribs shaped steel, the favourable coal separating tooth dish 15 that conveniently is fixedly set on it; The coal slime that coal scraper plate 13 is adhered on coal separating tooth dish 15 sidewalls in the cleaning rotation on the one hand and once in a while clip at the lump coal of 15 on coal separating tooth dish, guarantee the effect that coal separating tooth dish 15 separates coal, coal separating tooth dish 15 is with minute coal device axle 16 a rotation directions rotation as shown in Figure 1, the 15 concavo-convex variations of coal separating tooth dish, 7 times coal breakage streams of loose coal dropping port can shake, favourable powder agglomates separates, recess forms and holds coal groove 14 in rotation, carry big piece mixing coal down and separate size block mixing coal, fritter falls to by the fire grate of advancing 22 shown in Figure 1, coarse coal, and is ended coal plate 23 and is stopped to fire grate 22 roots by throwing; Active catch coal anti-6 has three effects, the one, under the elastic force of spring 9 promotes, the coal that stops coal dropping port 7 the to fall undue coal mechanism top of circulating falls, the 2nd, big in the coal groove 14 held in extruding, fritter mixing coal separates, the 3rd, in case there is relatively large coal to be stuck between coal separating tooth dish 15 and the movable spillplate 6, can overcome spring 9 elastic force by movable spillplate 6, move behind the movable spillplate 6 promotion activity guide rods 8, movable spillplate 6 is fixed on the hinge through on the fixed support 10 around the upper end, to prevent that branch coal device axle 16 from the disconnected coal accident of axis occurring and taking place, allowed behind the coarse coal, under spring 9 elastic force, movable spillplate 6 state of resuming work can make movable spillplate 6 be in the work of requirement by the adjustment nut of regulating on the movable guide rod 8 11.For the coal distributing machine structure being installed and being adjusted active catch coal mechanism, installing hole 24 and hand hole 25 can be set on feeding-coal bucket 1.The fixed mount 12 of coal scraper plate 13 rear ends can be fixed on on half coal bunker, the 1 antetheca thermal insulation layer 17.The retaining fire tube 21 of stockhole top can raise the adjusting nut 19 of pole 20 upper ends by it, regulates the position of retaining fire tube 21.

Consider modern combustion technology,, take coal combustion before entering burner hearth, to spray combustion adjuvant and desulfurizing agent for improving fired state and minimizing smoke evacuation dirt and pernicious gas to the pollution of environment.The utility model as Figure 1-3; the fixed mount 12 of coal distributing machine structure coal scraper plate 13 can be a shower; a plurality of nozzles 18 more than one fixedly are housed being provided with on the shower, combustion adjuvant, desulfurizing agent are sprayed in the coal seam on fire grate 22, have also realized protection environment purpose in energy-conservation.

Claims

1, a kind of fast-assembly link chain boiler coal feeder includes coal guide plate, elasticity retaining coal mechanism and coal distributing machine structure, it is characterized in that:

1.1 coal guide plate (3) tilts fixedly to place feeding-coal bucket (1) internal upper part, is formed with coal dropping port (7) between lower end and feeding-coal bucket (1) antetheca;

1.2 the movable spillplate (6) of elasticity retaining coal mechanism is positioned at coal guide plate (3) lower end one side, movable spillplate (6) is that an above polylith plate is individually fixed in movable guide rod (8) front end, movable guide rod (8) is gone up pocketed springs (9) the back other end and is inserted on fixed support (10) by adjusting nut (11), and movable spillplate (6) upper end is hinged with fixed support (10);

1.3 the coal distributing machine structure is arranged at coal dropping port (7) below, be to go up fixed cover at minute coal device axle (16) two above coal separating tooth dishes (15) are housed, between the space, top between every adjacent two coal separating tooth dishes (15), all dispose the rear end and be fixed in coal scraper plate (13) on the fixed support (12).

2, the fast-assembly link chain boiler coal feeder of describing according to claim 1, it is characterized in that described coal guide plate, (3) be that the upper end is fixed on feeding-coal bucket (1) wall by fixing hinge (2), the locating rack (5) that coal guide plate (3) lower end is provided with is plugged in the deep-slotted chip breaker (4) that is provided with on the wallboard of feeding-coal bucket (1) both sides.

3, according to claim 1 or the 2 fast-assembly link chain boiler coal feeders of describing, the fixed mount (12) that it is characterized in that said fixedly coal scraper plate (13) is a shower, and a plurality of nozzles (18) more than fixedly are housed thereon.