CN102384660A - Magnesia calcining rotary kiln flue gas waste heat power generation device - Google Patents
Magnesia calcining rotary kiln flue gas waste heat power generation device Download PDFInfo
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- CN102384660A CN102384660A CN2011103500778A CN201110350077A CN102384660A CN 102384660 A CN102384660 A CN 102384660A CN 2011103500778 A CN2011103500778 A CN 2011103500778A CN 201110350077 A CN201110350077 A CN 201110350077A CN 102384660 A CN102384660 A CN 102384660A
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
The invention discloses a magnesia calcining rotary kiln flue gas waste heat power generation device. A magnesia calcining kiln in which a magnesia rotary furnace is arranged is connected with the flue gas inlet of a flue gas waste heat boiler shell, and the flue gas outlet of the flue gas waste heat boiler shell is connected with a chimney. A coal economizer, an evaporator and an over-heater are sequentially arranged in the flue gas waste heat boiler shell from bottom to top. The coal economizer and a de-aerator are connected with a condensate water tank, the outlet of the coal economizer is connected with a steam pocket, the steam pocket forms a loop with the evaporator through a steam-water pipeline, the steam outlet of the steam pocket is connected with the over-heater, the over-heater is connected with a steam turbine, and the steam turbine is also connected with a generator. Through the device, the waste heat of the flue gas generated in the combustion process of a fuel for providing magnesite decomposition heat can be completely reclaimed and used for generating power, so that energy is saved, energy consumption is reduced, and the production cost of magnesia is reduced.
Description
Technical field
The present invention relates to a kind of magnesia calcination rotary kiln afterheat generating system.
Background technology
Magnesia calcining and decomposing in calcination rotary kiln needs certain temperature, and calcining dual mode in outer calcining of kiln and the kiln is arranged at present.Adopt the mode of the outer calcining and decomposing of kiln to help to improve magnesian purity and quality, liquid carbon dioxide that simultaneously also can separating high-purity.But, outside kiln, in the calcination process,, also have the great amount of high-temperature flue gas to discharge because fuel combustion offers outside the required heat of the interior material calcining of kiln, temperature can reach more than 750 ℃.Calcined magnesite stone can decomposite the pure carbon dioxide of a large amount of high temperature in the rotary kiln simultaneously, and temperature can reach 630 ℃, also can decomposite the high-temperature oxydation magnesium dust, and temperature can reach 630 ℃.Therefore, effectively utilize waste heat in the magnesia production to become the effective way of present reduction magnesia production comprehensive energy consumption.At present, be that the flue gas of discharging is produced saturated vapor through waste heat boiler for the mode of utilizing of above-mentioned production line residual heat resources, directly be used for producing or living needs, its utilization rate is very low, contaminated environment when causing a large amount of waste heats waste.
Summary of the invention
The purpose of this invention is to provide the magnesia calcination rotary kiln fume afterheat TRT that the waste heat that produces flue gas in the fuel combustion process that a kind of utilization provides magnesium ore to decompose heat generates electricity.The present invention adopts smoke and waste steam boiler to reclaim to provide magnesium ore to decompose the fume afterheat that is produced in the fuel combustion process of heat, drives the Steam Turbine generating by the superheated steam that this waste heat produced, and waste heat is converted into electric energy.
The present invention mainly includes: magnesia calcination rotary kiln, smoke and waste steam boiler, Turbo-generator Set, condensing unit and water circulation system.
Wherein, in establish the magnesia rotary furnace magnesia calcining kiln exhanst gas outlet link to each other with the gas approach of smoke and waste steam boiler housing through pipeline, the exhanst gas outlet of this smoke and waste steam boiler housing links to each other with chimney through the pipeline that is provided with air-introduced machine.Be provided with economizer, evaporimeter, superheater and Crust blocks pipe bundle in the above-mentioned smoke and waste steam boiler housing from the bottom to top successively.This economizer water inlet links to each other with condensation water tank through steam-water pipeline and oxygen-eliminating device; This economizer delivery port links to each other with drum through steam-water pipeline, and this drum is through steam-water pipeline and evaporimeter and Crust blocks pipe bundle formation loop, and the venthole of this drum links to each other with the superheater import; This superheater outlet links to each other with the steam turbine air intake through major steam line; This steam turbine links to each other with generator again, and the exhaust steam outlet of steam turbine links to each other with condenser, and the outlet of condenser is connected with condensate tank.Best, above-mentioned Turbo-generator Set is the condensing steam turbine generator group; Above-mentioned superheater is equipped with Desuperheating device; Above-mentioned oxygen-eliminating device is that the deaeration in condenser system also can adopt thermal de-aeration system or chemical deoxidization system.
The course of work of the present invention is: the magnesia calcining kiln comes heated oxide magnesium rotary furnace through burning coal or other fuel; Its flue gas that produces; Be sent in the smoke and waste steam boiler through pipeline; Through with smoke and waste steam boiler in Crust blocks pipe bundle, superheater, evaporimeter and economizer heat exchange after, through air-introduced machine, deliver to the chimney emptying; Smoke and waste steam boiler economizer water inlet links to each other with condensate tank through steam-water pipeline and oxygen-eliminating device; This economizer delivery port links to each other with drum through steam-water pipeline; This drum is through steam-water pipeline and evaporimeter and Crust blocks pipe bundle formation loop, and the steam (vapor) outlet of this drum links to each other with superheater, produces superheated steam and delivers to Turbo-generator Set; Promote Turbo-generator Set acting generating, the exhaust steam of steam turbine is delivered in the condensation water tank through the pipeline that is provided with water pump through after the condenser condenses.
The present invention compared with prior art has following advantage:
1, the fume afterheat that produces after the fuel combustion all reclaims and is used for generating, and energy savings cuts down the consumption of energy, and reduces the magnesia production cost,
2, this steam turbine generator system adopts condensing turbine, improves the steam turbine power generation amount.According to system's characteristics, carry out parameter optimization, rationally confirm waste heat boiler steam parameter, steam turbine main steam condition, thus the structure of appropriate design steam turbine; Turbine speed adopts 3000r/min, without reductor, reduces the fault point.
3, this invention can effectively cut down the consumption of energy and power consumption, reduces the magnesia production cost, improves the problems such as environmental thermal pollution that the calcination rotary kiln waste heat is caused, and its economic benefit and social benefit are huge.
4, the delivery temperature of flue gas is reduced to 128 ℃, improves the problems such as environmental thermal pollution that the calcination rotary kiln waste heat is caused, and its economic benefit and social benefit are huge.
Description of drawings
Fig. 1 is an afterheat generating system process chart of the present invention.
Fig. 2 is that the smoke and waste steam boiler master looks simplified schematic diagram among Fig. 1.
Fig. 3 is that the A of Fig. 2 is to view.
Label declaration in the accompanying drawing
1-magnesia calcination rotary kiln, 2-smoke and waste steam boiler, 3-drum, 4-chimney, 5-steam turbine, 6-generator, 7-condenser, 8-condensate tank, 9-oxygen-eliminating device 10-turn to smoke-box 11-Crust blocks pipe bundle 12-superheater I 13-superheater II 14-evaporimeter I 15-evaporimeter II 16-evaporimeter III 17-evaporimeter IV 18 evaporimeter V 19-evaporimeter VI 20-economizer 21-exhanst gas outlet.
The specific embodiment
In the simplified schematic diagram of Fig. 1, Fig. 2 and magnesia calcination rotary kiln fume afterheat TRT shown in Figure 3; In establish the magnesia rotary furnace magnesia calcining kiln exhanst gas outlet link to each other with the gas approach of smoke and waste steam boiler housing through pipeline, the exhanst gas outlet of this smoke and waste steam boiler housing links to each other with chimney through the pipeline that is provided with air-introduced machine.Be provided with Crust blocks pipe bundle, superheater I, superheater II, evaporimeter I, evaporimeter II, evaporimeter III, evaporimeter IV, evaporimeter V, evaporimeter VI and economizer in the smoke and waste steam boiler housing from top to bottom successively; The economizer water inlet links to each other with condensate tank through steam-water pipeline and oxygen-eliminating device; This economizer delivery port links to each other with drum through steam-water pipeline; Crust blocks pipe bundle, evaporimeter I, evaporimeter II, evaporimeter III, evaporimeter IV, evaporimeter V, evaporimeter VI are connected to form the loop through tedge and down-comer and drum respectively, and the steam (vapor) outlet of this drum links to each other with the superheater I.The outlet of superheater I links to each other with superheater II inlet, and the outlet of superheater II links to each other with steam turbine, and steam turbine drives generator for electricity generation.The exhaust steam outlet of steam turbine links to each other with condenser, and the outlet of condenser is connected with condensate tank.
With 150,000 tons of/year flue gas production lines of certain company is example, supposes that 1 year operation hours is 300 days, operation 24 hours every days, and the then annual generated energy that increases is 1.56 hundred million degree.
Claims (4)
1. magnesia calcination rotary kiln fume afterheat TRT; It is characterized in that: in establish the magnesia rotary furnace magnesia calcining kiln exhanst gas outlet link to each other with the gas approach of smoke and waste steam boiler housing through pipeline; The exhanst gas outlet of this smoke and waste steam boiler housing links to each other with chimney through the pipeline that is provided with air-introduced machine, is provided with economizer, evaporimeter, superheater and Crust blocks pipe bundle in the above-mentioned smoke and waste steam boiler housing from the bottom to top successively; This economizer water inlet links to each other with condensation water tank through steam-water pipeline and oxygen-eliminating device; This economizer delivery port links to each other with drum through steam-water pipeline, and this drum is through steam-water pipeline and evaporimeter and Crust blocks pipe bundle formation loop, and the venthole of this drum links to each other with the superheater import; This superheater outlet links to each other with the steam turbine air intake through major steam line; This steam turbine links to each other with generator again, and the exhaust steam outlet of steam turbine links to each other with condenser, and the outlet of condenser is connected with condensate tank.
2. according to the magnesia calcination rotary kiln fume afterheat TRT of claim said 1, it is characterized in that: Turbo-generator Set is the condensing steam turbine generator group.
3. magnesia calcination rotary kiln fume afterheat TRT according to claim 1 and 2 is characterized in that: superheater is equipped with Desuperheating device.
4. magnesia calcination rotary kiln device for generating power by waste heat according to claim 3 is characterized in that: above-mentioned oxygen-eliminating device or for the deaeration in condenser system or for the thermal de-aeration system or for the chemical deoxidization system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103500778A CN102384660A (en) | 2011-11-08 | 2011-11-08 | Magnesia calcining rotary kiln flue gas waste heat power generation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103500778A CN102384660A (en) | 2011-11-08 | 2011-11-08 | Magnesia calcining rotary kiln flue gas waste heat power generation device |
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| CN102384660A true CN102384660A (en) | 2012-03-21 |
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| CN2011103500778A Withdrawn CN102384660A (en) | 2011-11-08 | 2011-11-08 | Magnesia calcining rotary kiln flue gas waste heat power generation device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817648A (en) * | 2012-09-14 | 2012-12-12 | 凤阳海泰科能源环境管理服务有限公司 | Residue heat power generating system |
| CN102944018A (en) * | 2012-11-23 | 2013-02-27 | 广东开能环保能源有限公司 | Burning and waste heat power generation system for hazardous wastes |
| CN103278018A (en) * | 2013-06-05 | 2013-09-04 | 宝钢工程技术集团有限公司 | Flue gas system for continuous annealing unit |
| CN103291389A (en) * | 2013-03-21 | 2013-09-11 | 天津逢春节能环保科技有限公司 | Improvement project for combustible gas discharge combustion waste heat and excess pressure reutilization technology for petroleum, offshore oil and petrochemical enterprises |
| CN106401674A (en) * | 2016-08-30 | 2017-02-15 | 刘飞 | Novel environment-friendly power generation device |
| CN107178773A (en) * | 2017-07-04 | 2017-09-19 | 赵晶 | A kind of generating equipment of central data regulation and control waste water and gas ladder detection |
| CN107676770A (en) * | 2017-10-18 | 2018-02-09 | 江苏永钢集团有限公司 | A kind of afterheat steam superheating system |
| CN111396854A (en) * | 2020-03-26 | 2020-07-10 | 湖州纳尼亚实业有限公司 | Intelligent recycling system for water circulation heat energy |
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| CN2903875Y (en) * | 2006-05-16 | 2007-05-23 | 邯郸锅炉制造有限责任公司 | Tunnel type waste heat boiler |
| CN2908793Y (en) * | 2005-11-18 | 2007-06-06 | 张英凡 | Cogeneration technology equipment of carbon dioxide working medium furnace |
| CN101392992A (en) * | 2008-10-27 | 2009-03-25 | 中信重工机械股份有限公司 | Silicon smelting electric furnace waste heat power generation process flow and configuration |
| CN201706900U (en) * | 2010-04-21 | 2011-01-12 | 济南海川投资集团有限公司 | Device utilizing smoke of economizer to heat condensation water for waste heat generation |
| CN202350551U (en) * | 2011-11-08 | 2012-07-25 | 大连易世达新能源发展股份有限公司 | Generating device using residual heat of smoke of magnesium oxide calcination rotary kiln |
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2011
- 2011-11-08 CN CN2011103500778A patent/CN102384660A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2908793Y (en) * | 2005-11-18 | 2007-06-06 | 张英凡 | Cogeneration technology equipment of carbon dioxide working medium furnace |
| CN2903875Y (en) * | 2006-05-16 | 2007-05-23 | 邯郸锅炉制造有限责任公司 | Tunnel type waste heat boiler |
| CN101392992A (en) * | 2008-10-27 | 2009-03-25 | 中信重工机械股份有限公司 | Silicon smelting electric furnace waste heat power generation process flow and configuration |
| CN201706900U (en) * | 2010-04-21 | 2011-01-12 | 济南海川投资集团有限公司 | Device utilizing smoke of economizer to heat condensation water for waste heat generation |
| CN202350551U (en) * | 2011-11-08 | 2012-07-25 | 大连易世达新能源发展股份有限公司 | Generating device using residual heat of smoke of magnesium oxide calcination rotary kiln |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817648A (en) * | 2012-09-14 | 2012-12-12 | 凤阳海泰科能源环境管理服务有限公司 | Residue heat power generating system |
| CN102944018A (en) * | 2012-11-23 | 2013-02-27 | 广东开能环保能源有限公司 | Burning and waste heat power generation system for hazardous wastes |
| CN102944018B (en) * | 2012-11-23 | 2015-10-28 | 广东开能环保能源有限公司 | A kind of dangerous waste incineration and afterheat generating system thereof |
| CN103291389A (en) * | 2013-03-21 | 2013-09-11 | 天津逢春节能环保科技有限公司 | Improvement project for combustible gas discharge combustion waste heat and excess pressure reutilization technology for petroleum, offshore oil and petrochemical enterprises |
| CN103278018A (en) * | 2013-06-05 | 2013-09-04 | 宝钢工程技术集团有限公司 | Flue gas system for continuous annealing unit |
| CN103278018B (en) * | 2013-06-05 | 2015-08-19 | 宝钢工程技术集团有限公司 | Connect and move back unit flue gas system |
| CN106401674A (en) * | 2016-08-30 | 2017-02-15 | 刘飞 | Novel environment-friendly power generation device |
| CN107178773A (en) * | 2017-07-04 | 2017-09-19 | 赵晶 | A kind of generating equipment of central data regulation and control waste water and gas ladder detection |
| CN107676770A (en) * | 2017-10-18 | 2018-02-09 | 江苏永钢集团有限公司 | A kind of afterheat steam superheating system |
| CN107676770B (en) * | 2017-10-18 | 2023-10-10 | 江苏永钢集团有限公司 | Waste heat steam superheating system |
| CN111396854A (en) * | 2020-03-26 | 2020-07-10 | 湖州纳尼亚实业有限公司 | Intelligent recycling system for water circulation heat energy |
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Application publication date: 20120321 |