CN103471122A

CN103471122A - Multi-tube dust remover inside boiler

Info

Publication number: CN103471122A
Application number: CN2013103862710A
Authority: CN
Inventors: 顾浩东; 冯敏芹; 田忠权
Original assignee: Jiangsu Taihu Boiler Co Ltd
Current assignee: Jiangsu Taihu Boiler Co Ltd
Priority date: 2013-08-30
Filing date: 2013-08-30
Publication date: 2013-12-25

Abstract

The invention provides a multi-tube dust remover inside a boiler. Through the multi-tube dust remover, smoke inside a biomass boiler can be separated quickly and quickly discharged out of the boiler, the tail of the boiler can be unblocked, stopping the boiler to remove the dust is avoided, and normal heating of the biomass boiler is ensured. The multi-tube dust remover comprises a boiler hearth, a boiler high-temperature heated surface, a boiler medium-temperature heated surface, a remover structure, and a boiler low-temperature heated surface. The smoke sequentially passes the boiler hearth, the boiler high-temperature heated surface, the boiler medium-temperature heated surface, the remover structure and the boiler low-temperature heated surface. The multi-tube dust remover is characterized in that the remover structure is disposed on the lower portion of a tail shaft structure of the boiler, and the remover structure comprises a smoke incoming chamber, cyclone separation guide vanes, smoke outgoing tubes, a cyclone cylinder, a dust discharge tube, a dust bucket, and a smoke outgoing chamber. Top smoke outlets of the smoke outgoing tubes are evenly formed and communicated with the bottom of the smoke outgoing chamber.

Description

A kind of boiler internal multi-pipe dust removing device

Technical field

The present invention relates to the ash disposal technical field of structures of boiler, be specially a kind of boiler internal multi-pipe dust removing device.

Background technology

If the boiler main Industrial Boiler that living beings are fuel, boiler capacity is generally in the 10t/h left and right.Industrial Boiler is the important thermal powerplant of China, use widely, demand is large, in recent years, the boiler of biomass fuel is gradually to large scale development, be accompanied by large scale development, the dedusting structure of existing biomass fuel boiler inside, do not reach quick ash disposal, make the dirt in flue gas to enter into together afterbody along with flue gas, finally cause afterbody blocked, the blowing out deashing of having to, it makes the heat production work of biomass boiler be affected.

Summary of the invention

For the problems referred to above, the invention provides a kind of boiler internal multi-pipe dust removing device, it makes the ash in the flue gas of biomass boiler inside to be separated fast, discharge fast boiler, the afterbody of guaranteeing boiler is unimpeded, without the blowing out deashing, guarantees normally carrying out of biomass boiler heat production work.

A kind of boiler internal multi-pipe dust removing device, its technical scheme is such: it comprises boiler furnace, the boiler high temperature heating surface, warm heating surface in boiler, the deduster structure, the boiler low-temperature heating surface forms, and described flue gas passes through described boiler furnace in turn, the boiler high temperature heating surface, warm heating surface in boiler, the deduster structure, the boiler low-temperature heating surface is characterized in that: described deduster structural configuration is in the bottom of the tail vertical well structure of boiler, and described deduster structure comprises into smoke-box, the cyclonic separation guide vane, pipe, cyclone cylinder, ash tube, ash bucket, go out smoke-box, the described below that goes out smoke-box is communicated with respectively the top outlet flue of uniform described pipe, the deeply inside of corresponding described cyclone cylinder of mouth is entered in the bottom of described pipe, the external diameter of described pipe is less than the internal diameter of described cyclone cylinder, the upper end internal cavity of each described cyclone cylinder is equipped with described cyclonic separation guide vane, describedly goes out smoke-box and is positioned at the described inside of advancing smoke-box, and advance the smoke-box isolation with described, describedly enter the top that smoke-box is arranged in described deduster structure, in described boiler, the outlet of warm heating surface is communicated with described import of advancing smoke-box, describedly enter the smoke-box below and be communicated with respectively end entrance on described cyclone cylinder, the lower end outlet of described cyclone cylinder is provided with ash tube, every described ash tube passes into respectively described ash bucket, and a described side that goes out smoke-box has the import that outlet is communicated with described boiler low-temperature heating surface.

It is further characterized in that: described cyclonic separation guide vane is specially and utilizes the whirlwind tangential velocity to carry out the blade of vortex, and it is positioned at the inner chamber of the cyclone cylinder of corresponding diameter;

The lateral surface of described cyclonic separation guide vane is specially the circular arc type structure;

Described ash tube is the circular cone structure closed up downwards.

After adopting the present invention, flue gas enter into after smoke-box by the cyclonic separation guide vane respectively water conservancy diversion enter in corresponding cyclone cylinder, in cyclone cylinder, flue gas completes and separates under the centrifugal power effect with dust, dust after separation enters ash tube downwards along the inwall of cyclone cylinder, finally from ash bucket, discharge, flue gas after simultaneously purifying is from bottom to top drawn from pipe, enter out smoke-box, the final import that enters into the boiler low-temperature heating surface from a side outlet, the flue gas after purifying enters into boiler tail, can not produce fouling phenomenon; To sum up, it makes the ash in the flue gas of biomass boiler inside to be separated fast, discharges fast boiler, guarantees that the afterbody of boiler is unimpeded, without the blowing out deashing, guarantees normally carrying out of biomass boiler heat production work.

The accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is the structure for amplifying schematic diagram of cyclonic separation guide vane of the present invention.

Fig. 3 is that the present invention is installed on the structural representation in boiler.

The specific embodiment

See Fig. 1～3, it comprises boiler furnace 1, boiler high temperature heating surface 2, warm heating surface 3 in boiler, deduster structure 4, boiler low-temperature heating surface 5 forms, and flue gas passes through boiler furnace 1 in turn, boiler high temperature heating surface 2, warm heating surface 3 in boiler, deduster structure 4, boiler low-temperature heating surface 5, deduster structure 4 is arranged in the bottom of the tail vertical well structure 13 of boiler, and the deduster structure comprises into smoke-box 6, cyclonic separation guide vane 7, pipe 8, cyclone cylinder 9, ash tube 10, ash bucket 11, go out smoke-box 12, the below that goes out smoke-box 12 is communicated with respectively the top outlet flue of uniform pipe 8, the inside that mouth gos deep into corresponding cyclone cylinder 9 is entered in the bottom of pipe 8, the external diameter of pipe 8 is less than the internal diameter of cyclone cylinder 9, the upper end internal cavity of each cyclone cylinder 9 is equipped with cyclonic separation guide vane 7, goes out smoke-box 12 and is positioned at into the inside of smoke-box 6, and with advance smoke-box 6 isolation, enter the top that smoke-box 6 is arranged in deduster structure 4, in boiler, the outlet of warm heating surface 3 is communicated with into the import of smoke-box 6, enter smoke-box 6 belows and be communicated with respectively end entrance on cyclone cylinder 9, the lower end outlet of cyclone cylinder 9 is provided with ash tube 10, every ash tube 10 passes into respectively ash bucket 11, and a side that goes out smoke-box 12 has the import that outlet is communicated with boiler low-temperature heating surface 5.Cyclonic separation guide vane 7 is specially and utilizes the whirlwind tangential velocity to carry out the blade of vortex, and it is positioned at the inner chamber of the cyclone cylinder of corresponding diameter; The lateral surface of cyclonic separation guide vane 7 is specially the circular arc type structure; Ash tube 10 is the circular cone structure closed up downwards.

The flow direction that in figure, arrow is flue gas.

Claims

1. a boiler internal multi-pipe dust removing device, it comprises boiler furnace, the boiler high temperature heating surface, warm heating surface in boiler, the deduster structure, the boiler low-temperature heating surface forms, and described flue gas passes through described boiler furnace in turn, the boiler high temperature heating surface, warm heating surface in boiler, the deduster structure, the boiler low-temperature heating surface is characterized in that: described deduster structural configuration is in the bottom of the tail vertical well structure of boiler, and described deduster structure comprises into smoke-box, the cyclonic separation guide vane, pipe, cyclone cylinder, ash tube, ash bucket, go out smoke-box, the described below that goes out smoke-box is communicated with respectively the top outlet flue of uniform described pipe, the deeply inside of corresponding described cyclone cylinder of mouth is entered in the bottom of described pipe, the external diameter of described pipe is less than the internal diameter of described cyclone cylinder, the upper end internal cavity of each described cyclone cylinder is equipped with described cyclonic separation guide vane, describedly goes out smoke-box and is positioned at the described inside of advancing smoke-box, and advance the smoke-box isolation with described, describedly enter the top that smoke-box is arranged in described deduster structure, in described boiler, the outlet of warm heating surface is communicated with described import of advancing smoke-box, describedly enter the smoke-box below and be communicated with respectively end entrance on described cyclone cylinder, the lower end outlet of described cyclone cylinder is provided with ash tube, every described ash tube passes into respectively described ash bucket, and a described side that goes out smoke-box has the import that outlet is communicated with described boiler low-temperature heating surface.

2. a kind of boiler internal multi-pipe dust removing device according to claim 1, it is characterized in that: described cyclonic separation guide vane is specially and utilizes the whirlwind tangential velocity to carry out the blade of vortex, and it is positioned at the inner chamber of the cyclone cylinder of corresponding diameter.

3. a kind of boiler internal multi-pipe dust removing device according to claim 1 and 2, it is characterized in that: the lateral surface of described cyclonic separation guide vane is specially the circular arc type structure.

4. a kind of boiler internal multi-pipe dust removing device according to claim 1, is characterized in that: the circular cone structure of described ash tube for closing up downwards.