CN103148478A - Multi-hearth fluidized bed furnace - Google Patents
Multi-hearth fluidized bed furnace Download PDFInfo
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- CN103148478A CN103148478A CN201310071846XA CN201310071846A CN103148478A CN 103148478 A CN103148478 A CN 103148478A CN 201310071846X A CN201310071846X A CN 201310071846XA CN 201310071846 A CN201310071846 A CN 201310071846A CN 103148478 A CN103148478 A CN 103148478A
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Abstract
The invention discloses a multi-hearth fluidized bed furnace which comprises a furnace body, wherein a hearth is arranged in the furnace body, a furnace door and a feed pipe are arranged at the front side of the furnace body, a heat supply pipe is arranged at the rear side of the furnace body, and a fire baffle wall is arranged at a position close to the rear part in the hearth. The multi-hearth fluidized bed furnace is characterized in that more than three odd main furnace hearths are distributed side by side at the front part of the bottom of the furnace body along left and right direction, a rectangular flying slag bed is arranged behind the main furnace bed and before the fire baffle wall at the bottom of the furnace body, and a slag control wall is arranged between all the main furnace beds and the flying slag bed; a rectangular flying slag bed is arranged behind the fire baffle wall at the bottom of the furnace body, an air blower is arranged at the external part of the furnace body and communicated with one main air bellows through a main air supply pipe, and a vent pipe and a valve are arranged between each two air bellows; and an auxiliary air pipe is further arranged on the main air supply pipe and respectively communicated with a flying slag bed air bellows and a flying ash bed air bellows through a plurality of branch pipes. With the multi-hearth fluidized bed furnace, the problems that the exiting large fluidized bed furnace is difficult to ignite and wide in heat supply amplitude modulation range can be solved, and the multi-hearth fluidized bed furnace is widely used in building materials, chemical and metallurgy industries.
Description
Technical field
The present invention relates to industrial combustion equipment, especially a kind of many sieges fluidized bed furnace.
Background technology
Along with industrial fast development, need to be more and more urgent to the maximization of fluidisation combustion apparatus fluidized bed furnace, and one of difficult point that fluidized bed furnace maximizes is the constraint of air distribution plate.Due to the core component in the fluidization technique of same type---the heat force intensity of air distribution plate is that every square metre hour quantity of heat production is a fixed number, increase along with heating load, the linear growth of air distribution plate area, when the air distribution plate area increased to certain numerical value, igniting and troubleshooting etc. all can be very difficult; Be subjected in addition the constraint of incipient fluidization wind speed, the adjusting range of heating load is very little, and general being difficult to below 40% normally moved.Just someone has proposed the fluidized bed furnace of double bed structure for this reason, namely design two main sieges that are arranged side by side in fluidized bed furnace, each main siege includes bellows and air distribution plate, when needing small size heat supply, the double bed fluidized bed furnace needs only single bed operating, and single bed operating very easily causes body of heater be heated inequality and destroy, the user adopts left and right bed alternate run, brings again the unsettled problem of operating mode, and body of heater still can be subject to certain destruction simultaneously.
Summary of the invention
Purpose of the present invention will solve fluidized bed furnace maximization ignition difficulties exactly, and the problem that the heat supply adjusting range is little provides a kind of many sieges fluidized bed furnace.
Concrete scheme of the present invention is: improve for common fluidized bed furnace, it has body of heater, be burner hearth in body of heater, the front side of body of heater is provided with fire door, feed pipe, rear side is provided with heating tube, is provided with firebreak by the rear portion in burner hearth, it is characterized in that: be positioned at the front portion at bottom of furnace body and be arranged side by side with three and above odd number master siege by left and right directions, each main siege includes main air distribution plate and main air case, and the main air case is placed in the below of body of heater cushion cap; After bottom of furnace body is positioned at main siege, before firebreak, be provided with a rectangular slag-bed that flies, this flies slag-bed and includes and fly the slag-bed air distribution plate and fly the slag-bed bellows, flies the slag-bed bellows and is placed in body of heater cushion cap top, controls the slag wall at all main sieges with flying to be provided with between slag-bed; After bottom of furnace body is positioned at firebreak, be provided with a rectangular flying dust bed, this flying dust bed includes flying dust bed air distribution plate and flying dust bed bellows, and flying dust bed bellows are placed in the top of body of heater cushion cap; Be provided with air blast in the body of heater outside, air blast is communicated with one of them main air case by main feed pipe, between the main air case, ventilation duct is housed in twos, and on ventilation duct, valve is housed; Secondary airduct also is housed on main feed pipe, and secondary airduct is communicated with respectively by some arms and flies slag-bed bellows and flying dust bed bellows, and all arms are to be embedded in the bottom of furnace body body of wall, and on every arm, adjusting valve are arranged.
Main feed pipe described in the present invention is to be communicated with a main air case of middle.
The length that flies slag-bed described in the present invention equals the total length of all main siege left and right orientations.Fly slag and make the effect that its afterburnt discharges out of the furnace guarantee to collect.
The length of the bed of flying dust described in the present invention is greater than the total length of all main siege left and right orientations.Fly slag and make the effect that its afterburnt discharges out of the furnace guarantee to collect.
The case of main air described in the present invention all adopts isobaric bellows.
Be provided with residue outlet in the present invention in each main siege; Respectively be provided with at least two excessive ash pipes in flying slag-bed and flying dust bed, material envelope valve is housed on every excessive ash pipe.
Operation mechanism of the present invention is: referring to Fig. 1,2,3,1) when starting, fluidized bed furnace only a main siege 4 of centre is lighted a fire.Restart both sides master's siege 4 after stable until whole symmetrical operation; 2) main siege is after 4 operation a period of times, under the effect of air-flow, the unburnt high-temperature coal of part and slag leap control slag wall 25 and enter and fly slag-bed 24, fly the high-pressure blast of slag-bed bellows 16 under the effect that flies slag-bed air distribution plate 15, continue the fluidisation after-flame, and overflow outside stove from overflow ash pipe 17 and material envelope valve 18; The air quantity that adjust to be fit to, the arm 6 through passing main siege division wall for body of wall and cushion cap 27 coolings and the warm-air supply that will reclaim heat fly slag-bed 24 and flying dust bed 23, keeps normal fluidized bed combustion; Main siege 4 climbs over firebreak 22 with the dust-laden high-temperature flue gas that flies slag-bed 24 generations under the negative pressure suction, operation downwards at a high speed, go out uncombusted dust thicker in flue gas by gravity and inertial separation, fall into flying dust bed 8, thoroughly the afterburnt discharges out of the furnace through the ash pipe 17 that overflows, material envelope valve 18, and the High Temperature Gas after purification is extracted heat supply outside stove out from heating tube 21.
Advantage of the present invention is:
1. the large-scale air distribution plate face that is difficult to ignition operation is reduced to 1/3 or 1/5 or less, is convenient to ignition operation, control.
2. the amplitude modulation range of stable heating is large, three main siege design width-adjustables are to the regulated quantity of single of 1/3 * 0.4(of maximum heating load)=0.133 ≈ 13.5%, five main siege designs can transfer to 1/5 * 0.4=0.08 ≈ 8% of maximum heating load, have guaranteed that stove is for significantly adjusting the operating mode heat supply of heating load.
3. the quantity of main siege is designed to odd number, by the odd number master siege operation work such as 1,3,5 of arranging between just, has guaranteed the property symmetrically and evenly that body of heater is heated during heat supply, is difficult for causing cause thermal damage.
4. all arms are passed the partition wall between main siege, both reduced the temperature of cushion cap and partition wall, guarantee the feasibility of many sieges, again the heat that reclaims is burnt for flying slag-bed and flying dust bed.
Description of drawings
Fig. 1 is main cutaway view of the present invention;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the B-B view of Fig. 1.
In figure: 1-body of heater, 2-feed pipe, 3-burner hearth, 4-master's siege, 5-fire door, the 6-arm, 7-adjusting valve, the secondary airduct of 8-, 9-air blast, 10-air main, 11-master's air distribution plate, 12-main air case, the 13-ventilation duct, 14-residue outlet, 15-fly the slag-bed air distribution plate, 16-flies the slag-bed bellows, the 17-ash pipe that overflows, 18-material envelope valve, 19-flying dust bed bellows, 20-flying dust bed air distribution plate, 21-heating tube, 22-firebreak, 23-flying dust bed, 24-flies slag-bed, 25-control slag wall, 26-valve, 27-cushion cap.
The specific embodiment
Referring to Fig. 1,2,3, the present invention has body of heater 1, be burner hearth 3 in body of heater 1, the front side of body of heater 1 is provided with fire door 5, feed pipe 2, rear side is provided with heating tube 21, is provided with firebreak 22 by the rear portion in burner hearth 3, particularly: be positioned in body of heater 1 bottom and anteriorly be arranged side by side with three main sieges 4 by left and right directions, each main siege 4 includes main air distribution plate 11 and main air case 12, and main air case 12 is placed in the below of body of heater cushion cap 27; After body of heater 1 bottom is positioned at main siege 4, before firebreak 22, be provided with a rectangular slag-bed 24 that flies, this flies slag-bed 24 and includes and fly slag-bed air distribution plate 15 and fly slag-bed bellows 16, flies slag-bed bellows 16 and is placed in body of heater cushion cap 27 tops, controls slag wall 25 at all main sieges 4 with flying to be provided with between slag-bed 24; After body of heater 1 bottom is positioned at firebreak 22, be provided with a rectangular flying dust bed 23, this flying dust bed 23 includes flying dust bed air distribution plate 20 and flying dust bed bellows 19, and flying dust bed bellows 19 are placed in the top of body of heater cushion cap 27; Be provided with air blast 9 in body of heater 1 outside, air blast 9 is communicated with one of them main air case 12 by main feed pipe, and ventilation duct 13 is housed between main air case 12 in twos, and valve 26 is housed on ventilation duct 13; Secondary airduct 8 also is housed on main feed pipe 10, secondary airduct 8 be communicated with respectively by four arms 6 fly slag-bed bellows 16 and each two arms of flying dust bed bellows 19(), all arms 6 are to be embedded in body of heater 1 bottom body of wall, and establish adjusting valve 7 on every arm 6.
Main feed pipe described in the present embodiment is to be communicated with a main air case 12 of middle.
The length that flies slag-bed 24 described in the present embodiment equals the total length of all main siege 4 left and right orientations.
The length of the bed of flying dust described in the present embodiment 23 is greater than the total length of all main siege 4 left and right orientations.
The case of main air described in the present embodiment 12 all adopts isobaric bellows.
Be provided with residue outlet 14 in the present embodiment in each main siege 4; Respectively be provided with two excessive ash pipes 17 in flying slag-bed 24 and flying dust bed 23, material envelope valve 18 is housed on every excessive ash pipe 17.
The present invention is according to the demand of user's heating load adjustable range and larger model, can design a plurality of odd number master sieges such as 5,7,9.
Claims (6)
1. siege fluidized bed furnace more than a kind, has body of heater, be burner hearth in body of heater, the front side of body of heater is provided with fire door, feed pipe, rear side is provided with heating tube, is provided with firebreak by the rear portion in burner hearth, it is characterized in that: be positioned at the front portion at bottom of furnace body and be arranged side by side with three and above odd number master siege by left and right directions, each main siege includes main air distribution plate and main air case, and the main air case is placed in the below of body of heater cushion cap; After bottom of furnace body is positioned at main siege, before firebreak, be provided with a rectangular slag-bed that flies, this flies slag-bed and includes and fly the slag-bed air distribution plate and fly the slag-bed bellows, flies the slag-bed bellows and is placed in body of heater cushion cap top, controls the slag wall at all main sieges with flying to be provided with between slag-bed; After bottom of furnace body is positioned at firebreak, be provided with a rectangular flying dust bed, this flying dust bed includes flying dust bed air distribution plate and flying dust bed bellows, and flying dust bed bellows are placed in the top of body of heater cushion cap; Be provided with air blast in the body of heater outside, air blast is communicated with one of them main air case by main feed pipe, between the main air case, ventilation duct is housed in twos, and on ventilation duct, valve is housed; Secondary airduct also is housed on main feed pipe, and secondary airduct is communicated with respectively by some arms and flies slag-bed bellows and flying dust bed bellows, and all arms are to be embedded in the bottom of furnace body body of wall, and on every arm, adjusting valve are arranged.
2. a kind of many sieges fluidized bed furnace according to claim 1, it is characterized in that: described main feed pipe is to be communicated with a main air case of middle.
3. a kind of many sieges fluidized bed furnace according to claim 1, it is characterized in that: the described length that flies slag-bed equals the total length of all main siege left and right orientations.
4. a kind of many sieges fluidized bed furnace according to claim 1, it is characterized in that: the length of described flying dust bed is greater than the total length of all main siege left and right orientations.
5. a kind of many sieges fluidized bed furnace according to claim 1, it is characterized in that: described main air case all adopts isobaric bellows.
6. a kind of many sieges fluidized bed furnace according to claim 1, is characterized in that: be provided with residue outlet in each main siege; Respectively be provided with at least two excessive ash pipes in flying slag-bed and flying dust bed, material envelope valve is housed on every excessive ash pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310071846.XA CN103148478B (en) | 2013-03-07 | 2013-03-07 | Multi-hearth fluidized bed furnace |
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| CN201310071846.XA CN103148478B (en) | 2013-03-07 | 2013-03-07 | Multi-hearth fluidized bed furnace |
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| CN103148478A true CN103148478A (en) | 2013-06-12 |
| CN103148478B CN103148478B (en) | 2015-01-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224772A (en) * | 2018-02-06 | 2018-06-29 | 湖南三创富泰环保材料股份有限公司 | A kind of dual-purpose boiling type hot-blast stove of novel bottle coal and control method |
| CN109340742A (en) * | 2018-11-27 | 2019-02-15 | 湖北金炉节能股份有限公司 | A kind of new-type fluidized bed smoke furnace |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62233682A (en) * | 1986-03-31 | 1987-10-14 | 川崎重工業株式会社 | Start controller for fluidized bed cooler |
| CN2046976U (en) * | 1988-12-31 | 1989-11-01 | 华中理工大学 | High-temp. fume fluidised-bed furnace |
| US5181481A (en) * | 1991-03-25 | 1993-01-26 | Foster Wheeler Energy Corporation | Fluidized bed combustion system and method having multiple furnace sections |
| CN2277484Y (en) * | 1997-03-31 | 1998-04-01 | 魏文彦 | Heating and steam generating fiuidized bed furnace |
| CN2896027Y (en) * | 2006-04-05 | 2007-05-02 | 袁朝阳 | Strong hot-air double-hearth high-temperature boilling furnace |
| CN2929481Y (en) * | 2006-07-29 | 2007-08-01 | 黄石市建材节能设备总厂 | Three bed boiling furnace |
| CN101776391A (en) * | 2010-01-12 | 2010-07-14 | 武汉科技大学 | Fluidized bed furnace used for vanadium extraction and decarbonization of stone coal |
| CN101949535A (en) * | 2010-09-28 | 2011-01-19 | 哈尔滨工业大学 | Low-ratio biomass circulating fluidized bed boiler and combustion method thereof |
| CN203147744U (en) * | 2013-03-07 | 2013-08-21 | 黄石市建材节能设备总厂 | Multi-hearth boiling furnace |
-
2013
- 2013-03-07 CN CN201310071846.XA patent/CN103148478B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62233682A (en) * | 1986-03-31 | 1987-10-14 | 川崎重工業株式会社 | Start controller for fluidized bed cooler |
| CN2046976U (en) * | 1988-12-31 | 1989-11-01 | 华中理工大学 | High-temp. fume fluidised-bed furnace |
| US5181481A (en) * | 1991-03-25 | 1993-01-26 | Foster Wheeler Energy Corporation | Fluidized bed combustion system and method having multiple furnace sections |
| CN2277484Y (en) * | 1997-03-31 | 1998-04-01 | 魏文彦 | Heating and steam generating fiuidized bed furnace |
| CN2896027Y (en) * | 2006-04-05 | 2007-05-02 | 袁朝阳 | Strong hot-air double-hearth high-temperature boilling furnace |
| CN2929481Y (en) * | 2006-07-29 | 2007-08-01 | 黄石市建材节能设备总厂 | Three bed boiling furnace |
| CN101776391A (en) * | 2010-01-12 | 2010-07-14 | 武汉科技大学 | Fluidized bed furnace used for vanadium extraction and decarbonization of stone coal |
| CN101949535A (en) * | 2010-09-28 | 2011-01-19 | 哈尔滨工业大学 | Low-ratio biomass circulating fluidized bed boiler and combustion method thereof |
| CN203147744U (en) * | 2013-03-07 | 2013-08-21 | 黄石市建材节能设备总厂 | Multi-hearth boiling furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224772A (en) * | 2018-02-06 | 2018-06-29 | 湖南三创富泰环保材料股份有限公司 | A kind of dual-purpose boiling type hot-blast stove of novel bottle coal and control method |
| CN109340742A (en) * | 2018-11-27 | 2019-02-15 | 湖北金炉节能股份有限公司 | A kind of new-type fluidized bed smoke furnace |
| CN109340742B (en) * | 2018-11-27 | 2024-04-30 | 湖北金炉节能股份有限公司 | Novel fluidized bed flue gas furnace |
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| CN103148478B (en) | 2015-01-21 |
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Effective date of registration: 20230403 Address after: No.16, Wangsheng Avenue East, Jinshan sub district office, Huangshi City, Hubei Province Patentee after: HUBEI JINLU ENERGY SAVING CO.,LTD. Address before: No. 161-1, Hangzhou West Road, Huangshi City, Hubei Province Patentee before: Huangshi Building Material Energy Saving Equipment Factory |
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