CN105352334A - Hot smoke recycling system - Google Patents

Hot smoke recycling system Download PDF

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Publication number
CN105352334A
CN105352334A CN201510899779.XA CN201510899779A CN105352334A CN 105352334 A CN105352334 A CN 105352334A CN 201510899779 A CN201510899779 A CN 201510899779A CN 105352334 A CN105352334 A CN 105352334A
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CN
China
Prior art keywords
smoke
recycling system
discharging pipe
fan
chimney
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510899779.XA
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Chinese (zh)
Inventor
徐涛
徐伟
王明达
刘一成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUCHENG BEIXIN BUILDING MATERIAL Co Ltd
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GUCHENG BEIXIN BUILDING MATERIAL Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by GUCHENG BEIXIN BUILDING MATERIAL Co Ltd filed Critical GUCHENG BEIXIN BUILDING MATERIAL Co Ltd
Priority to CN201510899779.XA priority Critical patent/CN105352334A/en
Publication of CN105352334A publication Critical patent/CN105352334A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

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  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

The invention discloses a hot smoke recycling system. The system comprises a boiling furnace and chimneys, wherein the boiling furnace is divided into two chamber bodies; primary fans are respectively arranged at the bottoms of the two chamber bodies; smoke exhausting pipelines are respectively arranged at the top ends of the two chamber bodies of the boiling furnace; one smoke exhausting pipeline is sequentially provided with a heat exchanger, an electric dust collector, a main draught fan and the chimney; the other smoke exhausting pipeline is sequentially provided with a mixing chamber, a beater, the electric dust collector, the main draught fan and the chimney; the main draught fan on one smoke exhausting pipeline and the inlet of each primary fan are respectively provided with a hot air pipeline; a smoke reflowing pipeline is arranged between the main draught fan on the other smoke exhausting pipeline and the mixing chamber; a flashboard is arranged inside each chimney and is controlled by an electric servo executing mechanism. The hot smoke recycling system disclosed by the invention has the beneficial effects of circularly utilizing heat, saving energy and being more environment-friendly.

Description

A kind of heat smoke recycling system
Technical field
The present invention relates to a kind of heat energy recycling system, be specifically related to a kind of heat smoke recycling system.
Background technology
In recent years, the output of China's plasterboard has realized the amplification of annual more than 20%, but plasterboard occupancy volume far falls behind developed country per capita, therefore, need not only to enhance productivity but also the production technology of economize energy and equipment, meanwhile, country improves constantly the attention rate of the energy and environmental protection.Therefore reduce unit consumption and production cost, decreasing pollution discharge becomes hot technology, produces plasterboard, not only solve the solid waste problem of thermal power plant with desulfurized plaster board, and provides cheap raw material for plasterboard factory.But the adsorbed water of desulfurated plaster usually containing 12%-15%, energy consumption problem becomes focus in gypsum board manufacturing process.
Heating system is the core technology that desulfurated plaster prepares Thistle board in the prior art, and it comprises raw material calcining heating system and heat-force dry heating system; And fluidized bed furnace is the thermal source of heating system, it is the key realizing energy-saving and emission-reduction.
Therefore, in order to realize the Appropriate application of the energy, the discharge capacity of decreasing pollution thing, needs a kind of production equipment and the processing technology thereof that can effectively utilize resource, reduce toxic emission, reduce production cost, reduce production coal consumption badly.
Summary of the invention
The invention provides a kind of heat smoke recycling system, expending huge heat energy in order to solve desulfurized plaster board in prior art in the process of anhydrating, pollute discharge capacity large, heat energy can not get the problem effectively utilized.
The technical scheme that the present invention takes is as follows:
A kind of heat smoke recycling system, comprise fluidized bed furnace, chimney, described fluidized bed furnace is divided into two cavitys, the bottom of two cavitys is respectively arranged with primary air fan, the top of two cavitys of described fluidized bed furnace is respectively arranged with smoke discharging pipe, one of them smoke discharging pipe is disposed with heat exchanger, electricity gathers dust, main induced draft fan, chimney; Another smoke discharging pipe is disposed with mixing chamber, break up mechanical, electrically to gather dust, main induced draft fan, chimney; Main induced draft fan on a described smoke discharging pipe and primary air fan porch are provided with hot air duct; Smoke backflow pipeline is provided with between main induced draft fan on another smoke discharging pipe described and mixing chamber; Be provided with flashboard in described chimney, described flashboard is by servo-electric actuating mechanism controls.
Especially, the pipe diameter of described smoke discharging pipe and hot air duct is Ф 800mm.
Especially, Feng Liang≤9.5 ten thousand m of described primary air fan 3/ h.
Especially, the Feng Ya≤7000pa of described primary air fan.
Especially, described servo-electric executing agency is servo electric jar.
Especially, the hot air duct place that the main induced draft fan on described smoke discharging pipe and primary air fan porch are arranged is provided with air door, and described air door is connected with electric pushrod.
Especially, the main induced draft fan on described smoke discharging pipe and the smoke backflow pipeline that arranges between mixing chamber are provided with air door, and described air door is connected with electric pushrod.
Beneficial effect of the present invention is as follows: owing to being provided with flashboard in chimney, and has servo electric jar to control switch and the folding degree of flashboard, so can control the discharge of flue gas; Owing to being provided with hot air duct and smoke backflow pipeline, the backflow effectively promoting flue gas utilizes, and heat is recycled, not only economize energy, also environmental protection more.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein:
1, chimney; 2, main induced draft fan; 3, electricity gathers dust; 4, beater; 5, mixing chamber; 6, fluidized bed furnace cavity; 7, primary air fan; 8, primary air fan; 9, fluidized bed furnace cavity; 10, heat exchanger; 11, electricity gathers dust; 12, main induced draft fan; 13, chimney.
Detailed description of the invention
As shown in Figure 1, a kind of heat smoke recycling system of the present invention, comprise fluidized bed furnace, described fluidized bed furnace comprises two cavitys, i.e. fluidized bed furnace cavity 6 and fluidized bed furnace cavity 9, the bottom of two cavitys is respectively arranged with primary air fan 7,8, and the top of two cavitys of described fluidized bed furnace is respectively arranged with smoke discharging pipe, one of them smoke discharging pipe is disposed with heat exchanger 10, electricity gathers dust 3, main induced draft fan 12, chimney 13; Another smoke discharging pipe is disposed with mixing chamber 5, beater 4, electricity gathers dust 3, main induced draft fan 2, chimney 1; Main induced draft fan 12 on a described smoke discharging pipe exports and primary air fan 8 porch is provided with hot air duct; Smoke backflow pipeline is provided with between main induced draft fan 2 on another smoke discharging pipe described and mixing chamber 5.
Chimney 1,13 inside of arranging outside increases the flashboard automatically regulated, and flashboard, by servo-electric actuating mechanism controls, can adopt servo electric jar to control switch and the folding degree of flashboard, so can control the discharge of flue gas.
Described pipe diameter Ф 800mm, also can slightly larger than 800mm.
The hot air duct place that main induced draft fan 12 on smoke discharging pipe and primary air fan 8 porch are arranged is provided with air door, and described air door is connected with electric pushrod.Electric pushrod can control the folding degree of air door, and then controls air quantity, after air quantity adjustment, can adjust First air temperature and First air oxygen content.
The smoke backflow pipeline of the main induced draft fan 2 on described smoke discharging pipe and setting between mixing chamber 5 is provided with air door, and described air door is connected with electric pushrod.Electric pushrod can control the folding degree of air door, and air quantity can adjust, and then the grog performance that control is calcined out.
Because hot-air is different with normal temperature air proportion, air quantity and the blast of primary air fan 7,8 need being increased, by changing impeller and the motor of primary air fan 8, making the air quantity of primary air fan 7,8 by 7.2 ten thousand m 3/ h brings up to 9.5 ten thousand m 3/ h, blast brings up to 7000pa by 5500pa.
After introducing hot air duct and smoke backflow pipeline, the wind-warm syndrome of primary air fan 7,8 entrance is brought up to 115 DEG C (mean annual temperatures) by original 15 DEG C, primary air fan 7,8 bellows oxygen content in air drops to 13.5% by 21%, and the oxygen content of outer heat extraction cigarette drops to 10.5% by 15.8%.
The heat energy that fluidized bed furnace produces passes through the circulating air in heat exchanger 10 heating drier with the form of heat smoke, heat smoke after heat exchange is gathered dust after 3 dedustings by electricity and is discharged in air by chimney, this part heat smoke is still containing higher heat, and the temperature of outer heat extraction flue gas is generally at about 150 DEG C.
On gypsum board production line, because plasterboard is dry and raw material frying needs a large amount of hot blasts, this just needs the primary air fan of fluidized bed furnace to be blown into a large amount of cold airs to the burner hearth of fluidized bed furnace, and primary air fan air quantity is at 7.2 ten thousand m 3/ h can meet Production requirement, and fluidized bed furnace Coal-fired capacity 3-5 ton per hour, needs fresh air 2.5 ten thousand m 3/ h-3.5 ten thousand m 3/ h, therefore primary air fan entrance is per hour 40,000 m 3cold air can be replaced by outer waste air.Meanwhile, chimney discharge 70,000m 3/ h waste gas also contaminated environment.
The present invention is by using proof for a long time, and get back in hot-blast stove again utilizing due to heat smoke major part, the useless flue gas be discharged in air is greatly reduced, and effective protection of the environment, has accomplished cleaner production.Gypsum board manufacture coal consumption drops to 14 years 0.88kg/ ㎡ (0.65kg marks Mei/㎡) by the 13 years 1.03kg/ ㎡ (0.8kg marks Mei/㎡) before transforming, by annual output 3000 ten thousand ㎡ plasterboard, coal-fired 4500 tons can be saved every year, cost-saving about 2,000,000 yuan.

Claims (7)

1. a heat smoke recycling system, comprise fluidized bed furnace, chimney, it is characterized in that: described fluidized bed furnace is divided into two cavitys, the bottom of two cavitys is respectively arranged with primary air fan, the top of two cavitys of described fluidized bed furnace is respectively arranged with smoke discharging pipe, one of them smoke discharging pipe is disposed with heat exchanger, electricity gathers dust, main induced draft fan, chimney; Another smoke discharging pipe is disposed with mixing chamber, break up mechanical, electrically to gather dust, main induced draft fan, chimney; Main induced draft fan on a described smoke discharging pipe and primary air fan porch are provided with hot air duct; Smoke backflow pipeline is provided with between main induced draft fan on another smoke discharging pipe described and mixing chamber; Be provided with flashboard in described chimney, described flashboard is by servo-electric actuating mechanism controls.
2. a kind of heat smoke recycling system as claimed in claim 1, is characterized in that: the pipe diameter of described smoke discharging pipe and hot air duct is Ф 800mm.
3. a kind of heat smoke recycling system as claimed in claim 1, is characterized in that: wind amount≤9.5 ten thousand m of described primary air fan 3/ h.
4. a kind of heat smoke recycling system as claimed in claim 1, is characterized in that: the wind pressure≤7000pa of described primary air fan.
5. a kind of heat smoke recycling system as claimed in claim 1, is characterized in that: described servo-electric executing agency is servo electric jar.
6. a kind of heat smoke recycling system as claimed in claim 1, is characterized in that: the hot air duct place that the main induced draft fan on described smoke discharging pipe and primary air fan porch are arranged is provided with air door, and described air door is connected with electric pushrod.
7. a kind of heat smoke recycling system as claimed in claim 1, is characterized in that: the main induced draft fan on described smoke discharging pipe and the smoke backflow pipeline that arranges between mixing chamber are provided with air door, and described air door is connected with electric pushrod.
CN201510899779.XA 2015-12-09 2015-12-09 Hot smoke recycling system Pending CN105352334A (en)

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CN201510899779.XA CN105352334A (en) 2015-12-09 2015-12-09 Hot smoke recycling system

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CN201510899779.XA CN105352334A (en) 2015-12-09 2015-12-09 Hot smoke recycling system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106766969A (en) * 2017-02-21 2017-05-31 故城北新建材有限公司 A kind of fluidized bed furnace waste heat recycling system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2626247Y (en) * 2003-05-10 2004-07-21 福建省烟草专卖局烟草农业科学研究所 Tobacco leaf roasting device
CN2883334Y (en) * 2006-04-07 2007-03-28 谢荣清 Divided-room boiling frying pot for gypsum powder
CN201367394Y (en) * 2009-01-20 2009-12-23 北新集团建材股份有限公司 Airflow desulfurization gypsum calcining system
JP2010019525A (en) * 2008-07-14 2010-01-28 Kobe Steel Ltd Exhaust gas treatment facility and dust recovery method by exhaust gas treatment facility
CN102213541A (en) * 2011-05-26 2011-10-12 天津华能北方热力设备有限公司 Coal hot air furnace capable of simultaneously generating steam
CN102303883A (en) * 2011-07-11 2012-01-04 中国石油化工集团公司 Method for preparing calcium oxide and sulfur by double-atmosphere fluidized roasting of desulfurated gypsum
CN202532881U (en) * 2012-03-31 2012-11-14 长沙有色冶金设计研究院有限公司 Fluidized roasting furnace
US20130228444A1 (en) * 2010-10-08 2013-09-05 Teal Sales Incorporated Biomass torrefaction system and method
CN104446066A (en) * 2014-11-10 2015-03-25 尹小林 Equipment of producing belite-gypsum material by roasting sludge and waste gypsum by virtue of fluidized-bed furnace
CN104848705A (en) * 2015-05-29 2015-08-19 烟台恒邦信息科技有限公司 Waste heat recycling system of fluidized bed roaster and method for applying waste heat recycling system
CN205262225U (en) * 2015-12-09 2016-05-25 故城北新建材有限公司 Hot flue gas recycle system

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2626247Y (en) * 2003-05-10 2004-07-21 福建省烟草专卖局烟草农业科学研究所 Tobacco leaf roasting device
CN2883334Y (en) * 2006-04-07 2007-03-28 谢荣清 Divided-room boiling frying pot for gypsum powder
JP2010019525A (en) * 2008-07-14 2010-01-28 Kobe Steel Ltd Exhaust gas treatment facility and dust recovery method by exhaust gas treatment facility
CN201367394Y (en) * 2009-01-20 2009-12-23 北新集团建材股份有限公司 Airflow desulfurization gypsum calcining system
US20130228444A1 (en) * 2010-10-08 2013-09-05 Teal Sales Incorporated Biomass torrefaction system and method
CN102213541A (en) * 2011-05-26 2011-10-12 天津华能北方热力设备有限公司 Coal hot air furnace capable of simultaneously generating steam
CN102303883A (en) * 2011-07-11 2012-01-04 中国石油化工集团公司 Method for preparing calcium oxide and sulfur by double-atmosphere fluidized roasting of desulfurated gypsum
CN202532881U (en) * 2012-03-31 2012-11-14 长沙有色冶金设计研究院有限公司 Fluidized roasting furnace
CN104446066A (en) * 2014-11-10 2015-03-25 尹小林 Equipment of producing belite-gypsum material by roasting sludge and waste gypsum by virtue of fluidized-bed furnace
CN104848705A (en) * 2015-05-29 2015-08-19 烟台恒邦信息科技有限公司 Waste heat recycling system of fluidized bed roaster and method for applying waste heat recycling system
CN205262225U (en) * 2015-12-09 2016-05-25 故城北新建材有限公司 Hot flue gas recycle system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106766969A (en) * 2017-02-21 2017-05-31 故城北新建材有限公司 A kind of fluidized bed furnace waste heat recycling system

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Application publication date: 20160224

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