CN201503022U - Boiler chain fire grate - Google Patents

Abstract

The utility model belongs to a boiler chain fire grate, and relates to a fire grate of a boiler, aiming to resolve problems that fire grates in the prior art are unsmooth in slag discharge and blocked by furnace ash. The technical scheme of the utility model includes that the boiler chain fire grate only comprise a coal hopper, a fire grate, a real drum and an ash hopper, the coal hopper is arranged above the front end of the fire grate, the rear roller is arranged at the rear end of the fire grate, and the ash hopper is arranged below the tail end of the fire grate. The boiler chain fire grate is smoother in slag discharge, and furnace slag is not easy to be accumulated in the rear drum, thereby prolonging service life of the rear drum and reducing maintenance cost of the boiler.

Description

The boiler traveling-grate stoker

Technical field

The utility model relates to boiler, and particularly the fire grate of boiler is specially a kind of boiler traveling-grate stoker.

Background technology

The boiler traveling-grate stoker that uses comprises coal bunker, fire grate, back roll, eagle iron and ash dropping hopper at present, and coal bunker is located at the fire grate front end, and back roll is positioned at the fire grate rear end, can drive fire grate coal is carried continuously to the fire grate rear end.Eagle iron contacts with fire grate is terminal, and eagle iron below is an ash dropping hopper.The effect of eagle iron is to prolong lime-ash in the time of staying of back of furnace row, makes the residue carbon in the lime-ash can obtain abundant after-flame.Lime-ash after the burning is discharged to ash dropping hopper, and then enters in the slag remover.Back-slagging not smooth (accompanying drawing 1) often appears in the fire grate that uses at present, a large amount of slags accumulates in the top of back drum and does not go down, adds temperature height in the stove, and fine ashes face flows in the stove plate of rear axle drum in eagle iron and fire grate slit, the load of fire grate is increased, the bending of fire grate bar, fire grate segment fractures, and back drum is sprained curved, must blowing out change after the fire grate segment fracture, the maintenance cost of drum is big, except increasing maintenance cost, has seriously influenced production.

Summary of the invention

For overcoming the problem not smooth and that ashes block of slagging tap that exists in the prior art, the utility model provides a kind of boiler traveling-grate stoker.

The technical scheme that the utility model provides is: the boiler traveling-grate stoker, only comprise coal bunker, fire grate, back roll and ash dropping hopper, and coal bunker is located at fire grate front end top, and back roll is located at the fire grate rear end, and fire grate end below is provided with ash dropping hopper.

The utility model has been cancelled the eagle iron of fire grate end in the original device, makes fire grate extend to the position of former eagle iron, and continuously to the fire grate end feed, the ashes that the burning back produces directly fall into ash dropping hopper from the coal of coal bunker input.

Compare with the boiler grate of present use, the boiler traveling-grate stoker that adopts the utility model to provide is slagged tap more smooth and easy, and back roll is difficult for producing slag to be built up, and in the service life of having improved back roll, the maintenance cost of boiler is reduced.

Description of drawings

Fig. 1 is a boiler traveling-grate stoker structural representation of the prior art.

Fig. 2 is the utility model boiler traveling-grate stoker structural representation.

Among the figure, the 1-coal bunker; The 2-fire grate; The 3-back roll; The 4-ash dropping hopper.

The specific embodiment

As shown in Figure 2, a kind of boiler traveling-grate stoker that the utility model provides comprises coal bunker 1, fire grate 2, back roll 3 and ash dropping hopper 4, and coal bunker 1 is located at fire grate 2 front ends top, and back roll 3 is located at fire grate 2 rear ends, and fire grate 2 terminal belows are provided with ash dropping hopper 4.Back roll 3 rotates under driven by power, fire grate 2 is the coal conveyer belt that cooperates with back roll, supporting body when also being coal combustion simultaneously, as shown in Figure 1, 2, the utility model has been cancelled the eagle iron 5 of fire grate 2 ends in the original device, make the position of the former eagle iron 5 of extending to of fire grate 2, continuously to fire grate 2 end feed, the ashes that the burning back produces directly fall into ash dropping hopper 4 from the coal of coal bunker 1 input.

Claims (1)

1. boiler traveling-grate stoker, it is characterized in that: only comprise coal bunker (1), fire grate (2), back roll (3) and ash dropping hopper (4), coal bunker (1) is located at fire grate (2) front end top, and back roll (3) is located at fire grate (2) rear end, and the terminal below of fire grate (2) is provided with ash dropping hopper (4).

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