CN101781097B - Airflow desulphurization gypsum calcination system - Google Patents
Airflow desulphurization gypsum calcination system Download PDFInfo
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- CN101781097B CN101781097B CN2009100770320A CN200910077032A CN101781097B CN 101781097 B CN101781097 B CN 101781097B CN 2009100770320 A CN2009100770320 A CN 2009100770320A CN 200910077032 A CN200910077032 A CN 200910077032A CN 101781097 B CN101781097 B CN 101781097B
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Abstract
The invention discloses an airflow desulphurization gypsum calcination system, which comprises a feeding storage system, a quantitative reclaiming system, a scattering machine, a post-calcination device, an electric dust collector, a modifying machine and a heat source stabilizing system, wherein the feeding storage system is used for delivering and temporarily storing the desulphurization gypsum raw materials; the quantitative reclaiming system is used for quantitatively measuring the desulphurization gypsum raw material which is conveyed by the feeding storage system and for sending the measured desulphurization gypsum raw material to the scattering machine; the scattering machine is used for scattering the desulphurization gypsum raw material of a given quantity which is sent by the quantitative reclaiming system to be dried and calcined in the high-temperature smoke; the electric dust collector is used for separating the desulphurization gypsum which is adequately burned from the smoke; the modifying machine is used for modifying the desulphurization gypsum after the calcinations which is separated from the electric dust collector and make the desulphurization gypsum into the building gypsum - a raw material which is suitable for the production of the gypsum board; and the heat source stabilizing system is used for supplying a stable heat source and for adequately utilizing the surplus heat of the system.
Description
Technical field
The present invention relates to a kind of gypsum calcination system, especially relate to a kind of calcination system that is used for the desulfurated plaster of gypsum board manufacture.
Background technology
The calcining of desulfurated plaster has multiple calcinated form at present.Comprise the calcining of steam rotary kiln, frying pan calcining, fluidizing furnace calcining, the calcining of flue gas rotary kiln, the calcining of peters mill, air-flow calcining etc., above-mentioned roasting assembly or burning quality are poor, and perhaps the complex equipments investment is high, and perhaps energy consumption is high.The present invention then has less energy-consumption, low investment, and burning quality is good, is fit to the characteristics of gypsum board manufacture.
Patented claim 200610068771.x discloses a kind of desulphurization gypsum calcination stoving process, mainly comprises thermal source, raw material conveying, drying materials pulverizing, dedusting, 5 part compositions of hot air circulation.Still there is following several problem in this patented claim: 1) do not have material measuring device, do not have thermal source stable supplying device, do not have the back roasting assembly, thereby cause the system operation fluctuation big, the burning quality instability is second-rate; 2) adopt cyclone and bag collection SR high, power of fan consumes higher; 3) tail gas adopts interchanger waste heat recovery poor reliability.
Summary of the invention
The technical problem that the present invention will solve provides a kind of burning quality height and can make full use of the airflow desulphurization gypsum calcination system of thermal source.
In order to address the above problem, to the invention provides a kind of airflow desulphurization gypsum calcination system and comprise:
The feeding stocking system is used to transmit desulfurated plaster and temporary transient the storage, and prevents wet sticking desulfurated plaster block system in carrying storage process;
Quantitatively get the material system, be used for quantitatively taking by weighing the desulfurated plaster raw material that said feeding stocking system sends, and deliver to beater;
Beater is used for being distributed to high-temperature flue gas and carrying out drying and calcining quantitatively getting a certain amount of desulfurated plaster raw material that the material system sends;
Back roasting assembly, be used for through the not fully calcined reaction desulfuration gypsum behind the beater and hot gas flow once more heat exchange carry out fully calcined reaction;
Electric precipitator is used for the desulfurated plaster after fully calcined is separated from flue gas;
Modifying machine, desulfurated plaster carries out the modification processing after the calcining that is used for electric precipitator is separated, and processes the raw material-plaster of Paris that is fit to gypsum board manufacture;
The thermal source stable system is used for supplying with to said beater and back roasting assembly stable heat, and makes full use of system's waste heat.
Preferably, said feeding stocking system comprises: anti-blocking hopper, conveyor and anti-blocking feed bin, anti-blocking hopper are used for temporary wet sticking desulfurated plaster raw material; Conveyor is used for that wet sticking desulfurated plaster raw material is delivered to anti-blocking feed bin by said anti-blocking hopper and stores for future use.
Preferably, the said material system of quantitatively getting comprises: feed bin dumper and constant feeder, feed bin dumper are used to control anti-blocking feed bin discharging; Constant feeder is used for quantitatively taking by weighing desulfurated plaster, and delivers to said beater.
Preferably, said beater is the hammer dryer.
Preferably, said back roasting assembly is calcined bucket after being, this back calcining bucket comprises: cylindrical shell, the deflection cone of barrel and edge circumferentially are provided with flow deflector.
Preferably, electric precipitator is efficient horizontal electrostatic precipitator.
Preferably, modifying machine is improved single storehouse ball mill, and has and be desulfurated plaster refrigerative cooling system in the modifying machine.
Preferably, said thermal source stable system comprises the hot cigarette mixing section that connects thermal source and beater, between hot cigarette mixing section and thermal source, is provided with the high temperature flashboard; Hot cigarette mixing section also links to each other with the tail gas relief outlet of electric precipitator through the return air flashboard, between said tail gas relief outlet and this return air flashboard, also is disposed with under meter and blower fan, and said blower fan also links to each other with a chimney.
Preferably, said thermal source can be the hot flue gas that fire coal, combustion gas or fuel oil produce, and the hot flue gas of other forms generations.
The present invention passes through the desulfurated plaster dosing system, the stable supplying system of thermal source, and back roasting assembly has guaranteed that the stable operation control of whole calcination system is accurate, has guaranteed burning quality preferably; To calcining the processing of back desulfurated plaster, the desulfurated plaster size distribution after the calcining is broadened through modifying machine, it is big that specific surface area becomes, and improves the high defective of desulfurated plaster bleeding, is more suitable for the gypsum board manufacture needs; Pipeline and valve through hot cigarette mixing section links to each other with the tail gas relief outlet can import to hot cigarette mixing section with part tail gas and utilize once more, have played energy-saving and emission-reduction, make full use of the effect of using waste heat from tail gas.
Description of drawings
Fig. 1 is system schematic figure of the present invention;
Fig. 2 a is the system schematic of calcination system behind the present invention, and Fig. 2 b is the schematic top plan view of Fig. 2 a;
Fig. 3 is the desulfurated plaster size distribution curve figure after handling through the present invention.
Embodiment
As shown in Figure 1, the present invention includes: the feeding stocking system 1 that sets gradually, quantitatively get material system 2, beater 3, back roasting assembly 4, electric precipitator 5, modifying machine 6, feeding stocking system 1 is used to transmit desulfurated plaster and temporary transient the storage; Quantitatively get material system 2 and be used for quantitatively taking by weighing the desulfurated plaster raw material that said feeding stocking system 1 sends, and deliver to beater 3; Beater 3 is used for passing the 2 a certain amount of desulfurated plaster raw materials brought and being distributed to high-temperature flue gas and carrying out drying and calcining quantitatively getting the material system; Back roasting assembly 4 be used for the desulfurated plaster through the not fully calcined reaction behind the beater 3 and hot gas flow once more heat exchange carry out fully calcined reaction; Electric precipitator 5 is used for the desulfurated plaster after fully calcined is separated from flue gas; Desulfurated plaster carries out the modification processing after the calcining that modifying machine 6 is used for electric precipitator 5 is separated, and processes the raw material-plaster of Paris that is fit to gypsum board manufacture; Thermal source stable system 7 is used for supplying with to beater 3 and back roasting assembly 4 stable heat, and makes full use of system's waste heat.
Specifically being provided with of each system can be adopted following mode:
As shown in Figure 1, feeding storage system 1 comprises: anti-blocking hopper 11, conveyor 12 and anti-blocking feed bin 13, anti-blocking hopper 11 are used for temporary wet sticking desulfurated plaster raw material; Conveyor is used for that wet sticking desulfurated plaster raw material is delivered to anti-blocking feed bin by said anti-blocking hopper and stores for future use.
Quantitatively getting material system 2 comprises: feed bin dumper 22 and constant feeder 23, and feed bin dumper 22 is used to control feed bin 13 dischargings, and constant feeder 23 is used for quantitatively taking by weighing desulfurated plaster, and delivers to beater 3.
Beater 3 among the present invention is a hammer dryer machine, electric precipitator 5 efficient horizontal electrostatic precipitator.
As shown in Figure 1, thermal source stable system 7 comprises the hot cigarette mixing section 71 that connects thermal source 73 and beater 3, between hot cigarette mixing section 71 and thermal source 73, is provided with high temperature flashboard 72; Hot cigarette mixing section 71 also links to each other with the tail gas relief outlet of electric precipitator through return air flashboard 77, between said tail gas relief outlet and return air flashboard 77, also is disposed with under meter 74, blower fan 75, and blower fan 75 also links to each other with a chimney 76.
The hot flue gas that thermal source 73 produces has the hot cigarette mixing section 71 of entering of control and the tail gas mixing that 77 guidings are come with return air duct through high temperature flashboard 72; And through return air flashboard 77 adjusting mixing back flue-gas temperature and pressure; Mix the abundant heat exchange calcining desulfurated plaster of back flue gas through beater 3, back roasting assembly 4; And the purification through dust precipitator 5, via under meter 74, blower fan 75, recycle to return air flashboard 77 stable and controllable systems, waste gas is by chimney 76 discharges.
As shown in Figure 1, between electric precipitation mechanism 5 and modifying machine 6, also be disposed with necessary handling equipment such as machine for zipper 55 and reamer 56.
Shown in Fig. 2 a, 2b, calcining mechanism 4 in back is a back calcining bucket, and this back calcining bucket comprises: cylindrical shell 41 is provided with deflection cone 42 and flow deflector 43 in cylindrical shell 41 inside.Through such setting, can increase the velocity contrast of flue gas and material, thereby desulfurated plaster is carried out further all even sufficient calcination processing, reach the uniform and stable requirement of material calcining.
In addition, the modifying machine 6 among the present invention is improved single storehouse ball mill, on ball mill, also is provided with calcining back desulfurated plaster in the ball mill is carried out refrigerative cooling system 61.
The present invention has guaranteed that through the stable supplying system 7 of desulfurated plaster dosing system 2, thermal source, back roasting assembly 4 the stable operation control of whole calcination system is accurate, has guaranteed burning quality preferably; Modification through desulfurated plaster after 6 pairs of calcinings of modifying machine is handled, and is as shown in Figure 3, and the desulfurated plaster size distribution after the calcining is broadened; The content of 1～6um has increased by 4～8% than in the past; Specific surface area also becomes greatly, improves the high defective of desulfurated plaster bleeding, is more suitable for the gypsum board manufacture needs; Return air duct and return air valve 77 through hot cigarette mixing section 71 links to each other with the exhaust emission tube road can import to hot cigarette mixing section 71 with part tail gas and utilize once more, have played energy-saving and emission-reduction, make full use of the effect of using waste heat from tail gas.
In sum; More than being merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention, therefore; All any modifications of within spirit of the present invention and principle, being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. an airflow desulphurization gypsum calcination system is characterized in that, comprising:
The feeding stocking system is used to transmit desulfurated plaster and temporary transient the storage, and prevents wet sticking desulfurated plaster block system in carrying storage process;
Quantitatively get the material system, be used for quantitatively taking by weighing the desulfurated plaster raw material that said feeding stocking system sends, and deliver to beater;
Beater is used for being distributed to high-temperature flue gas and carrying out drying and calcining quantitatively getting a certain amount of desulfurated plaster raw material that the material system sends;
Back roasting assembly, be used for through the not fully calcined reaction desulfuration gypsum behind the beater and hot gas flow once more heat exchange carry out fully calcined reaction;
Electric precipitator is used for the desulfurated plaster after fully calcined is separated from flue gas;
Modifying machine, desulfurated plaster carries out the modification processing after the calcining that is used for electric precipitator is separated, and processes the raw material-plaster of Paris that is fit to gypsum board manufacture;
The thermal source stable system is used for supplying with to said beater and back roasting assembly stable heat, and makes full use of system's waste heat.
2. the system of claim 1 is characterized in that, said feeding stocking system comprises: anti-blocking hopper, conveyor and anti-blocking feed bin, anti-blocking hopper are used for temporary wet sticking desulfurated plaster raw material; Conveyor is used for that wet sticking desulfurated plaster raw material is delivered to anti-blocking feed bin by said anti-blocking hopper and stores for future use.
3. the system of claim 1 is characterized in that, the said material system of quantitatively getting comprises: feed bin dumper and constant feeder, feed bin dumper are used to control anti-blocking feed bin discharging; Constant feeder is used for quantitatively taking by weighing desulfurated plaster, and delivers to said beater.
4. the system of claim 1 is characterized in that, said beater is the hammer dryer.
5. the system of claim 1 is characterized in that, said back roasting assembly is calcined bucket after being, this back calcining bucket comprises: cylindrical shell, the deflection cone of barrel and edge circumferentially are provided with flow deflector.
6. the system of claim 1 is characterized in that, electric precipitator is efficient horizontal electrostatic precipitator.
7. the system of claim 1 is characterized in that, said modifying machine is single storehouse ball mill, and has and be desulfurated plaster refrigerative cooling system in the modifying machine.
8. the system of claim 1 is characterized in that, said thermal source stable system comprises the hot cigarette mixing section that connects thermal source and said beater, between hot cigarette mixing section and thermal source, is provided with the high temperature flashboard; Hot cigarette mixing section also links to each other with the tail gas relief outlet of electric precipitator through the return air flashboard, between said tail gas relief outlet and this return air flashboard, also is disposed with under meter and blower fan, and said blower fan also links to each other with a chimney.
9. like the arbitrary described system of claim 1 to 8, it is characterized in that said thermal source is the hot flue gas that fire coal, combustion gas or fuel oil produce.
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| CN2009100770320A CN101781097B (en) | 2009-01-16 | 2009-01-16 | Airflow desulphurization gypsum calcination system |
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| CN2009100770320A CN101781097B (en) | 2009-01-16 | 2009-01-16 | Airflow desulphurization gypsum calcination system |
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| CN101781097A CN101781097A (en) | 2010-07-21 |
| CN101781097B true CN101781097B (en) | 2012-05-09 |
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| CN102145981A (en) * | 2011-04-07 | 2011-08-10 | 员苏让 | Full-automatic device for quickly drying desulfurized gypsum |
| CN104003636A (en) * | 2014-06-12 | 2014-08-27 | 安玉奎 | Gypsum processing system |
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| CN106186755B (en) * | 2016-07-05 | 2018-09-11 | 淮南北新建材有限公司 | Plaster of paris and preparation method thereof |
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| CN108569853B (en) * | 2018-07-19 | 2023-10-31 | 西安建筑科技大学 | Industrial byproduct gypsum dehydration system and process |
| CN111056756A (en) * | 2018-10-16 | 2020-04-24 | 湖北北新建材有限公司 | System for improving stability of fried materials |
| CN111333353B (en) * | 2019-08-29 | 2022-04-19 | 贵州省环福新材料有限公司 | Industrial byproduct gypsum treatment system |
| CN110563363B (en) * | 2019-09-30 | 2020-10-27 | 北新集团建材股份有限公司 | Desulfurized gypsum calcining device and method using natural gas as heat source |
| CN110803876B (en) * | 2019-11-25 | 2020-09-18 | 江苏一夫科技股份有限公司 | II type anhydrous gypsum thermal coupling production device and method |
| CN111377624B (en) * | 2020-04-17 | 2023-12-22 | 青岛量子元基环保科技有限公司 | Gypsum evaporation cooling aging tower |
| CN111646718B (en) * | 2020-04-30 | 2021-01-01 | 北新集团建材股份有限公司 | Gypsum calcining system and gypsum calcining method |
| CN116354631A (en) * | 2023-04-03 | 2023-06-30 | 宁夏博得石膏研究院(有限公司) | Efficient hot air mixing heat exchange type one-step gypsum calcination system and process |
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| US6054101A (en) * | 1996-02-19 | 2000-04-25 | Ct Umwelttechnik Gmbh | Method and Device for heat-treating plaster |
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Application publication date: 20100721 Assignee: GUANG'AN BNBM Co.,Ltd. Assignor: BEIJING NEW BUILDING MATERIALS PLC Contract record no.: 2016990000521 Denomination of invention: Airflow desulphurization gypsum calcination system Granted publication date: 20120509 License type: Common License Record date: 20161223 |
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Effective date of registration: 20230314 Address after: No.2, Lingang industrial concentration zone, Xiashu Town, Jurong City, Zhenjiang City, Jiangsu Province Patentee after: BEIJING NEW BUILDING MATERIAL (ZHENJIANG) Co.,Ltd. Address before: 100037, Beijing, Haidian District, Three Mile Road, No. 11, China building materials building, 16 floor Patentee before: BEIJING NEW BUILDING MATERIALS PLC |
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