CN202350552U - Generating device using residual heat of magnesium oxide powder of magnesium oxide calcination rotary kiln - Google Patents
Generating device using residual heat of magnesium oxide powder of magnesium oxide calcination rotary kiln Download PDFInfo
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- CN202350552U CN202350552U CN2011204385857U CN201120438585U CN202350552U CN 202350552 U CN202350552 U CN 202350552U CN 2011204385857 U CN2011204385857 U CN 2011204385857U CN 201120438585 U CN201120438585 U CN 201120438585U CN 202350552 U CN202350552 U CN 202350552U
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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 utility model provides a generating device using residual heat of magnesium oxide powder of a magnesium oxide calcination rotary kiln. A material discharging opening of a magnesium oxide rotary furnace is connected with a solid inlet of a magnesium oxide powder residual heat boiler shell, and a solid outlet of the magnesium oxide powder residual heat boiler shell is connected with a magnesium oxide purifying device; the magnesium oxide powder residual heat boiler shell is internally and sequentially provided with an evaporator and an economizer from bottom to top; a water inlet of the economizer of a magnesium oxide powder residual heat boiler is connected with a condensed water tank through a steam pipeline and a deaerator; the economizer is connected with a steam drum, and a loop is formed by the evaporator and the steam drum; and the steam drum is connected with an over-heater, and the over-heater is connected with a steam turbine. The generating device using the residual heat of the magnesium oxide powder of the magnesium oxide calcination rotary kiln, provided by the utility model, can completely recycle the residual heat of the magnesium oxide powder generated by decomposing magnesium ores to generate power, thereby saving energy, reducing energy consumption and lowering the production cost of magnesium oxide.
Description
Technical field
The utility model 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 the utility model provides a kind of magnesia calcination rotary kiln device for generating power by waste heat that utilizes the magnesia powder waste heat that produced in the magnesia calcination process to generate electricity.The utility model mainly is to adopt the magnesia waste heat boiler to reclaim the magnesia powder waste heat that is produced in the magnesia calcination process; Deliver to by the saturated vapor that this waste heat boiler produced and to be heated into superheated steam in the superheater and to drive the Steam Turbine generating, waste heat is converted into electric energy.
The utility model mainly includes: magnesia calcination rotary kiln, magnesia waste heat boiler, Turbo-generator Set, condensing unit and water circulation system.
Wherein, Magnesia rotary furnace discharge gate links to each other with the solids inlet of magnesia waste heat boiler housing through pipeline; The solid outlet of this magnesia waste heat boiler housing links to each other with the magnesia purifying plant through pipeline, is provided with economizer and evaporimeter from the bottom to top successively in the above-mentioned magnesia waste heat boiler housing, connects through connecting flue between them; For the even distribution that guarantees material and the continuous operation of equipment, connect flue internal upper part at each material uniform device and mechanical vibrator device are set; Magnesia waste heat 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; Evaporimeter is connected to form the loop through tedge and down-comer and drum; The steam (vapor) outlet of this drum links to each other with superheater, and the superheater outlet 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.Best, above-mentioned Turbo-generator Set is the condensing steam turbine generator group; 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 utility model is: the magnesia rotary furnace decomposes the high-temperature oxydation magnesium granules that produces and delivers to the magnesia waste heat boiler by pipeline; After evaporimeter in the waste heat boiler and economizer heat exchange, the magnesia powder that temperature reduces is sent to the magnesia purifying plant and further processes; Magnesia waste heat boiler economizer water inlet links to each other with condensate tank by steam-water pipeline and oxygen-eliminating device; This economizer delivery port links to each other with drum by steam-water pipeline; Evaporimeter is connected to form the loop by tedge and down-comer and drum; The steam (vapor) outlet of this drum link to each other with superheater condensed water in the condensation water tank through the oxygen-eliminating device deoxygenation after, deliver to and carry out heat exchange in the magnesia waste heat boiler, the saturated vapor that the magnesia waste heat boiler produces gets into the superheater of flue gas boiler; Produce superheated steam and deliver to Turbo-generator Set, promote Turbo-generator Set acting generating.
The utility model compared with prior art has following advantage:
1, the fume afterheat of magnesium ore decomposition generation 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 utility model 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 drop temperature of magnesia material is reduced to below 120 ℃, 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 the utility model afterheat generating system process chart.
Fig. 2 is that magnesia waste heat boiler master looks simplified schematic diagram among Fig. 1.
Fig. 3 is that the B of Fig. 2 is to view.
Label declaration in the accompanying drawing
1-magnesia calcination rotary kiln, 2-magnesia powder waste heat boiler, 3-drum, 4-superheater, 5-steam turbine, 6-generator, 7-condenser, 8-condensate tank, 9-oxygen-eliminating device, 10-material inlet, 11-evaporimeter I 12-connection flue 13-evaporimeter II 14-evaporimeter III 15-economizer 16-material outlet 17-material uniform device 18-mechanical vibrator device.
The specific embodiment
Magnesia calcination rotary kiln calcining back produces the high-temperature oxydation magnesium dust, and this powder links to each other with the solids inlet of magnesia waste heat boiler shell body through pipeline, and the solid outlet of this magnesia waste heat boiler housing links to each other with the magnesia purifying plant through pipeline.Be provided with evaporimeter I, evaporimeter II, evaporimeter III and economizer from top to bottom successively in the above-mentioned magnesia waste heat boiler housing; Connect through connecting flue between them; For the even distribution that guarantees material and the continuous operation of equipment, connect flue internal upper part at each material uniform device and mechanical vibrator device are set.Magnesia waste heat 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; Evaporimeter I, evaporimeter II, evaporimeter III 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 superheater.The superheater outlet 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.
Claims (3)
1. magnesia calcination rotary kiln magnesia powder device for generating power by waste heat; It is characterized in that: magnesia rotary furnace discharge gate links to each other with the solids inlet of magnesia waste heat boiler housing through pipeline; The solid outlet of this magnesia waste heat boiler housing links to each other with the magnesia purifying plant through pipeline; Be provided with evaporimeter and economizer from the bottom to top successively in the above-mentioned magnesia waste heat boiler housing, connect through connecting flue between them, in each connection flue material uniform device and mechanical vibrator device are set; Magnesia waste heat 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, and evaporimeter is connected to form the loop through tedge and down-comer and drum, and the steam (vapor) outlet of this drum links to each other with superheater; The superheater outlet links to each other with steam turbine; Steam turbine drives generator for electricity generation, 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 magnesia powder device for generating power by waste heat of claim said 1, it is characterized in that: Turbo-generator Set is the condensing steam turbine generator group.
3. magnesia calcination rotary kiln magnesia powder device for generating power by waste heat according to claim 2 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 |
|---|---|---|---|
| CN2011204385857U CN202350552U (en) | 2011-11-08 | 2011-11-08 | Generating device using residual heat of magnesium oxide powder of magnesium oxide calcination rotary kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204385857U CN202350552U (en) | 2011-11-08 | 2011-11-08 | Generating device using residual heat of magnesium oxide powder of magnesium oxide calcination rotary kiln |
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| CN202350552U true CN202350552U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204385857U Expired - Fee Related CN202350552U (en) | 2011-11-08 | 2011-11-08 | Generating device using residual heat of magnesium oxide powder of magnesium oxide calcination rotary kiln |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384661A (en) * | 2011-11-08 | 2012-03-21 | 大连易世达新能源发展股份有限公司 | Power generation device based on after heat of magnesia powder from magnesia calcination rotary kiln |
| CN103925806A (en) * | 2014-04-01 | 2014-07-16 | 南昌江能热动工程技术有限责任公司 | Multi-channel back type integrated alkali sulphide converter waste heat boiler device |
| CN110608431A (en) * | 2019-03-30 | 2019-12-24 | 上海康恒环境股份有限公司 | A waste incineration power generation system with an external independent superheater |
-
2011
- 2011-11-08 CN CN2011204385857U patent/CN202350552U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384661A (en) * | 2011-11-08 | 2012-03-21 | 大连易世达新能源发展股份有限公司 | Power generation device based on after heat of magnesia powder from magnesia calcination rotary kiln |
| CN103925806A (en) * | 2014-04-01 | 2014-07-16 | 南昌江能热动工程技术有限责任公司 | Multi-channel back type integrated alkali sulphide converter waste heat boiler device |
| CN103925806B (en) * | 2014-04-01 | 2015-09-30 | 南昌江能热动工程技术有限责任公司 | A kind of multichannel back of the body formula integration akali sulphide Converter Residual Heat Boiler device |
| CN110608431A (en) * | 2019-03-30 | 2019-12-24 | 上海康恒环境股份有限公司 | A waste incineration power generation system with an external independent superheater |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Floor 20, block B, No. 32a, Torch Road, high tech Industrial Park, Dalian, Liaoning Province, 116000 Patentee after: Lida Group Co., Ltd Address before: 116023 Torch Road 32, hi tech Zone, Liaoning, Dalian Patentee before: DALIAN EAST NEW ENERGY DEVELOPMENT Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20201108 |