CN2256985Y - Chain and flight grate - Google Patents

Abstract

The utility model relates to a chain plate flight grate, comprising a front shaft 6, a back shaft 7, and both ends of the front shaft 6 are provided with driving wheels 5. Two chains which are composed of chain pin shafts 2 and chain plates 3 are arranged between the driving wheels 5 and the back shaft 7. A plate fire grate 1 is connected with the chain plates 3 via a fire grate pin shaft 4, a fire grate pin shaft bore 13 and a fire grate pin shaft bore 9 on the chain plate 2. Compared with existing chain fire grates, the utility model has the advantages of simple structure, stable running, little abrasion, little coal leakage, uniform air distribution and high thermal efficiency, and the boiler need not to stop when changing the plate fire grate.

Description

Chain and flight grate

The utility model relates to boiler fitting, specifically is a kind of Chain and flight grate.

The fire grate of normal-pressure horizontal chain-grate boiler is traveling-grate stoker at present.Traveling-grate stoker by fire grate long pin and the fire grate segment that is attached in a large number on the fire grate long pin constitute.Fire coal directly is placed on the fire grate segment and burns, thereby fire grate segment and the fire grate long pin that links to each other with fire grate segment are very fragile.Must blowing out just can carry out when changing fire grate segment or fire grate long pin.

The purpose of this utility model is the problem of and inconvenient maintenance perishable at the traveling-grate stoker of the normal-pressure horizontal chain-grate boiler of present use, and a kind of long service life is provided, and boiler does not need Chain and flight grate out of service during the maintain and replace fire grate.

This practicality is achieved in that Chain and flight grate comprises front axle, rear axle, driving wheel, chain.Chain is made of Chain link for chain grate and chain hinge pin.Chain hinge pin inserts in the chain pin axis hole of adjacent chain silver.Chain is two, is loaded on respectively between the driving wheel and rear axle two ends at front axle two ends.Be shaped on the chain pin axis hole on the Chain link for chain grate and the contiguous block of a projection is arranged.Has the fire grate pin shaft hole on the contiguous block.Tabular fire grate is elongated.Have a plurality of air inlets on the tabular fire grate.The two ends of tabular fire grate have the contiguous block of protrusion.Be shaped on the fire grate pin shaft hole on the contiguous block.Tabular fire grate and Chain link for chain grate link together by the fire grate bearing pin that passes contiguous block upper fire-grating pin shaft hole.

During work, front axle drives chain by driving wheel and rotates around driving wheel and rear axle.Tabular fire grate on the chain is followed chain and is moved together.Fire coal is distributed on the tabular fire grate and burns, and when tabular fire grate damages, can change in the chain operation process, does not need the blowing out maintenance.

The utility model has the advantages that: simple in structure, make easy to maintenance; Running is steady, and it is little to wear and tear, and it is few to leak coal, and cloth wind is even, thereby thermal efficiency height, sufficient combustion, and flue dust is few.

Fig. 1 is the Chain and flight grate structure chart;

Fig. 2 is the front view of Chain link for chain grate;

Fig. 3 is the vertical view of Fig. 2;

Fig. 4 is the A-A cutaway view of Fig. 2;

Fig. 5 is the front view of tabular fire grate;

Fig. 6 is the vertical view of Fig. 5;

Fig. 7 is the A-A cutaway view of Fig. 5;

Fig. 8 is the B-B cutaway view of Fig. 5.

The utility model is described in further detail below in conjunction with accompanying drawing:

Chain and flight grate comprises front axle 6, rear axle 7.A driving wheel 5 respectively is equipped with at the two ends of front axle 6.Two chains are housed on driving wheel 5 and the rear axle.Chain is made of by chain hinge pin 2 bindings some Chain link for chain grate 3.Except that the chain pin axis hole 10 that passes for chain shaft 2 is arranged, also has the contiguous block 8 that links to each other with tabular fire grate 1 of a projection on the Chain link for chain grate 3.Be shaped on fire grate pin shaft hole 9 on the contiguous block 8.Tabular fire grate 1 is bar shaped, has some air inlets 12 above.The two ends of tabular fire grate have the contiguous block 11 that is connected with Chain link for chain grate 3.Be shaped on fire grate pin shaft hole 13 on the contiguous block 11.Just tabular fire grate 1 can be fixed on the Chain link for chain grate 3 in the fire grate pin shaft hole 13 of fire grate bearing pin 3 tabular fire grates 1 of insertion and Chain link for chain grate 3 and the fire grate pin shaft hole 9.

Claims (1)

1, a kind of Chain and flight grate comprises front axle, rear axle, driving wheel, chain; Chain is made of Chain link for chain grate and chain hinge pin; Chain hinge pin inserts in the chain pin axis hole of adjacent Chain link for chain grate, it is characterized in that chain is two, is loaded on respectively between the driving wheel and rear axle two ends at front axle two ends; Be shaped on the chain pin-and-hole on the Chain link for chain grate, and the contiguous block of a projection is arranged; Has the fire grate pin shaft hole on the contiguous block; Tabular fire grate is elongated; Have a plurality of air inlets on the tabular fire grate; The two ends of tabular fire grate have the contiguous block of protrusion; Be shaped on the fire grate pin shaft hole on the contiguous block; Tabular fire grate and Chain link for chain grate link together by the fire grate bearing pin that passes contiguous block upper fire-grating pin shaft hole.

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