CN102537989B

CN102537989B - Spiral deslagging device for grate of refuse incineration boiler

Info

Publication number: CN102537989B
Application number: CN201210042059.8A
Authority: CN
Inventors: 唐国勇; 王政; 高芸
Original assignee: Wuxi Huaguang Boiler Co Ltd
Current assignee: Wuxi Huaguang Environment and Energy Group Co Ltd
Priority date: 2012-02-23
Filing date: 2012-02-23
Publication date: 2014-04-23
Anticipated expiration: 2032-02-23
Also published as: CN102537989A

Abstract

The invention provides a spiral deslagging device for a grate of a refuse incineration boiler, which not only can continuously discharge garbage as fine particles and ash residues all placed inside a grate ash hopper, guarantee the unimpeded condition of the ash hopper and prolong the continuous running time of the boiler, but also fills an ash receiving pipe with materials for sealing, so as to prevent hot air inside a grate air room from leaking, and further guarantee the economical efficiency of running of the boiler and the continuous incineration disposal of garbage. The spiral deslagging device includes an ash hopper and an ash receiving pipe, wherein the lower part of the ash hopper is communicated with the upper part of the ash receiving pipe. The spiral deslagging device is characterized in that the ash hopper includes an upper ash hopper and a lower ash hopper, wherein the lower narrow opening of the upper ash hopper is communicated with the upper wide opening of the lower ash hopper; the lower narrow opening of the lower ash hopper is communicated with the ash receiving pipe; a grate air inlet is arranged at the middle lower part of the upper ash hopper; a spiral auger is arranged inside the vertical end of the ash receiving pipe; and the spiral auger is positioned at an auger supporting plate of the lower ash hopper after being installed with a bearing assembly at the top end.

Description

The spiral deslagging device of grate of refuse incineration boiler

Technical field

The present invention relates to the modular construction technical field of boiler, be specially a kind of spiral deslagging device of grate of refuse incineration boiler.

Background technology

Domestic waste, is a kind of regenerative resource, utilizes waste incineration and generating electricity, has the energy of saving and land resource, antipollution social benefit, also has good economic benefit.Grate of refuse incineration boiler major part all adopts reciprocating fire grate at present.Reciprocating fire grate is divided into dryer section, burning zone and after-flame section, and each section has independently grate wind chamber, enters the burning of fire grate participation rubbish through the air of heating by fire grate air inlet.When fire grate moves, have the short grained rubbish of parts of fine and lime-ash to fall from fire grate gap, therefore grate wind chamber is again as putting ash bucket, by with put ash tube that ash bucket is connected by the rubbish of these fine particles and lime-ash discharge.In reciprocating fire grate dryer section because rubbish has just entered stove, percolate, fine particle and lime-ash in rubbish can fall into ash bucket from fire grate gap, these fine particles and lime-ash are understood mummification and stick on the wall of putting ash bucket after running into hot-air, after increasing gradually, can will put ash bucket stifled full, and fire grate air inlet is positioned at the middle and lower part of ash bucket, it easily causes the required air of incineration firing to enter fire grate from fire grate air inlet, make boiler blowing out carry out labor cleaning, not only affected the economy of boiler operatiopn but also delayed the burning disposal of rubbish.

Summary of the invention

For the problems referred to above, the invention provides a kind of spiral deslagging device of grate of refuse incineration boiler, it can either be continuous puts fire grate fine particle rubbish and lime-ash in ash bucket and discharges, guarantees to put that ash bucket is unimpeded, prolonged boiler continuous operating time; Can make to be again full of material in ash tube and play sealing function, avoid the hot-air in grate wind chamber to spill; Guarantee the economy of boiler operatiopn and the continuous burning disposal of rubbish.

A kind of spiral deslagging device of grate of refuse incineration boiler, its technical scheme is such: it comprises ash bucket, ash tube, the bottom of described ash bucket is communicated with the top of described ash tube, it is characterized in that: described ash bucket comprises ash bucket, lower ash bucket, bottom closing in place of described upper ash bucket is communicated with the place, wide mouthful of top of described lower ash bucket, bottom closing in place of described lower ash bucket is communicated with described ash tube, the middle and lower part of described upper ash bucket is provided with fire grate air inlet, in the vertical end of described ash tube, be provided with screw auger, after the top installation shaft bearing assembly of described screw auger, be positioned the auger support plate of described lower ash bucket, the upper end of described screw auger is set with rotor segment, the distal end of described rotor segment is close to the inwall of described lower ash bucket, the output that connects reduction box after the installing hole of beveled end of described ash tube is run through in the bottom of described screw auger, the outer wall of described installing hole is provided with hermetically-sealed construction.

It is further characterized in that: described hermetically-sealed construction is specially seal closure, and described seal closure is welded in the outer wall of the ash tube of described installing hole, and the position that described screw auger runs through described seal closure is set with bearing assembly, seal washer;

Place, wide mouthful of the top of described lower ash bucket is provided with ring steel plate, and the upper surface of described ring steel plate is evenly equipped with the reinforcement gusset closing up in inner side, and bottom closing in place of described upper ash bucket is set in described ring steel plate, strengthen in centre bore that gusset forms;

The bottom of described screw auger connects the output of described reduction box by shaft coupling, the input of described reduction box connects the output of motor by shaft coupling, and described reduction box, motor bearing are in electric machine support.

Adopt after structure of the present invention, reduction box drives screw auger, utilize the rotation of the blade of screw auger that the fine particle and the lime-ash that from fire grate gap, fall into ash bucket are discharged smoothly by ash tube, the rotary speed of reduction box adjustable screw packing auger blade can make to be full of material in ash tube and play sealing function, to avoid the hot-air in grate wind chamber to spill, along with the rotor segment that screw auger rotates can be removed the lime-ash sticking on lower ash bucket inwall, its can either be continuous fire grate is put to fine particle rubbish in ash bucket and lime-ash is discharged, guarantee to put ash bucket unimpeded, prolonged boiler continuous operating time, can make to be again full of material in ash tube and play sealing function, avoid the hot-air in grate wind chamber to spill, guarantee the economy of boiler operatiopn and the continuous burning disposal of rubbish.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

The specific embodiment

See Fig. 1, it comprises ash bucket 1, lower ash bucket 4, bottom closing in place of upper ash bucket 1 is communicated with the place, wide mouthful of top of lower ash bucket 1, bottom closing in place of lower ash bucket 4 is communicated with ash tube 5, the place, wide mouthful of top of lower ash bucket 4 is provided with ring steel plate 2, the upper surface of ring steel plate 2 is evenly equipped with the reinforcement gusset 3 closing up in inner side, and bottom closing in place of upper ash bucket 1 is set in ring steel plate 2, strengthens in the centre bore that forms of gusset 3, the middle and lower part of upper ash bucket 1 is provided with fire grate air inlet 17, in the vertical end of ash tube 5, be provided with screw auger 7, after the top installation shaft bearing assembly 8 of screw auger 7, be positioned the auger support plate 14 of lower ash bucket 4, the outer cover of bearing assembly 8 is equipped with protective cover 16, the upper end of screw auger 7 is set with rotor segment 15, the distal end of rotor segment 15 is close to the inwall of lower ash bucket 4, the output of the rear connection reduction box 10 of installing hole 18 of the beveled end of ash tube 5 is run through in the bottom of screw auger 7, the outer wall of installing hole 18 is provided with hermetically-sealed construction, hermetically-sealed construction is specially seal closure 6, seal closure 6 is welded in the outer wall of the ash tube 5 of installing hole 18, the position that screw auger 7 runs through seal closure 6 is set with bearing assembly 19, seal washer 9, the bottom of screw auger 7 connects the output of reduction box 10 by shaft coupling 11, the input of reduction box 10 connects the output of motor 12 by shaft coupling 11, and reduction box 10, motor 12 are supported on electric machine support 13, and electric machine support 13 is welded in the lower end of ash tube 5.

Its operation principle is as follows: when motor 12 drives screw auger 7 by reduction box 10, utilize the rotation of screw auger 7 blades that the fine particle and the lime-ash that from fire grate gap, fall into ash bucket are discharged smoothly by ash tube 5; By the rotary speed of buncher 12 and reduction box 10 adjustable screw auger 7 blades, can make to be full of material in ash tube 5 and play sealing function, to avoid the hot-air in grate wind chamber to spill; Along with the rotor segment 15 that screw auger 7 rotates can be removed the lime-ash sticking on bottom ash bucket 4 walls.

Claims

1. the spiral deslagging device of grate of refuse incineration boiler, it comprises ash bucket, ash tube, the bottom of described ash bucket is communicated with the top of described ash tube, it is characterized in that: described ash bucket comprises ash bucket, lower ash bucket, bottom closing in place of described upper ash bucket is communicated with the place, wide mouthful of top of described lower ash bucket, bottom closing in place of described lower ash bucket is communicated with described ash tube, the middle and lower part of described upper ash bucket is provided with fire grate air inlet, in the vertical end of described ash tube, be provided with screw auger, after the top installation shaft bearing assembly of described screw auger, be positioned the auger support plate of described lower ash bucket, the upper end of described screw auger is set with rotor segment, the distal end of described rotor segment is close to the inwall of described lower ash bucket, the output that connects reduction box after the installing hole of beveled end of described ash tube is run through in the bottom of described screw auger, the outer wall of described installing hole is provided with hermetically-sealed construction, described hermetically-sealed construction is specially seal closure, and described seal closure is welded in the outer wall of the ash tube of described installing hole, and the position that described screw auger runs through described seal closure is set with bearing assembly, seal washer, place, wide mouthful of the top of described lower ash bucket is provided with ring steel plate, and the upper surface of described ring steel plate is evenly equipped with the reinforcement gusset closing up in inner side, and bottom closing in place of described upper ash bucket is set in described ring steel plate, strengthen in centre bore that gusset forms, the bottom of described screw auger connects the output of described reduction box by shaft coupling, the input of described reduction box connects the output of motor by shaft coupling, and described reduction box, motor bearing are in electric machine support.