CN204022689U - A kind of telescopic shaft furnace with power generation assembly - Google Patents
A kind of telescopic shaft furnace with power generation assembly Download PDFInfo
- Publication number
- CN204022689U CN204022689U CN201420367346.0U CN201420367346U CN204022689U CN 204022689 U CN204022689 U CN 204022689U CN 201420367346 U CN201420367346 U CN 201420367346U CN 204022689 U CN204022689 U CN 204022689U
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- power generation
- carbon dioxide
- combustion chamber
- generation assembly
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Abstract
The utility model, with the telescopic shaft furnace of power generation assembly, comprises waste heat boiler, carbon dioxide treatment unit, power generation assembly, feeder apparatus, air feed system and fuel feed system.The cooling zone of kiln body is provided with lower suction bar.In kiln body, be provided with combustion chamber, combustion chamber is tube structure, and combustion chamber and the kiln bodily form circularize space.The top of combustion chamber is frustum type structure, and the top of frustum is provided with burner, and the side of frustum is provided with secondary air entrance.The bottom of combustion chamber is communicated with waste heat boiler by exhaust gases passes.Decomposition gas outlet is connected with carbon dioxide treatment unit by induced draft fan, and the outlet of lower suction bar is connected to secondary air entrance or induced draft fan entrance, and cooling blower entrance is connected with carbon dioxide treatment unit or is communicated with atmosphere.The utility model adds the material in heating kiln body by heat conduction brick structures muffle, improves the quality of calcination product, reclaims high-pureness carbon dioxide, utilizes waste-heat power generation, makes full use of heat resource, improves limestone kiln overall economic efficiency.
Description
Technical field
The utility model belongs to industrial furnace technical field, relates to a kind of telescopic shaft furnace with power generation assembly.
Background technology
Lime kiln afterheat is recycled, can save energy consumption, reduce lime production cost, and reduce the discharge of pollutent simultaneously.Limestone kiln is large-scale highly energy-consuming device, and along with the fast development of national economy, the waste heat of industrial furnace is very abundant, available having a high potential.Iron And Steel Industry, calcium carbide industry, aluminum oxide industry and refractory industry are lime consumption rich anies influential family, and the rapid growth of above-mentioned industry has driven the high speed development in limestone kiln.In process of production, smog discharge temperature is high for large-scale active lime production line, is about 240～260 DEG C.This part fume afterheat is effectively utilized, can reduce energy dissipation, increase economy and the feature of environmental protection in limestone kiln.It is precious resources that decomposition of limestone produces carbonic acid gas, because the carbonic acid gas and the combustion product gases that decompose mix, is unfavorable for recovery and the utilization of carbonic acid gas.
Openly " equipment that a kind of low temperature heat of lime kiln is recycled, mainly comprises limestone kiln, working medium storage tank, working medium preheater, vapour generator, steam setting device, steam turbine, generator, transmitter and condenser in the application for a patent for invention that the applicant is CN102338565A at publication number.Use the cryogenic gas in limestone kiln by working medium preheating by working medium preheater, use thermal oil liberated heat that the working medium after preheating is converted into steam by vapour generator, recycling steam turbine drives generator generating, the electricity producing can be supplied with lime kiln device consumer and use, and also can be incorporated to the total net of electric power ".The present invention is the improvement in above-mentioned patented technology.
Utility model content
The purpose of this utility model is to provide a kind of telescopic shaft furnace with power generation assembly, adopt the outer hot mode calcined limestone of external combustion, combustion chamber and decomposition of limestone chamber are separated, be beneficial to and collect highly purified carbonic acid gas, utilize the cogeneration of combustion product gases, reduce the energy expenditure in limestone kiln, improve limestone kiln overall economic efficiency.
The utility model, with the telescopic shaft furnace of power generation assembly, comprises waste heat boiler, carbon dioxide treatment unit, power generation assembly, kiln body, induced draft fan, cooling blower, feeder apparatus, air feed system and fuel feed system.Kiln body is provided with opening for feed, discharge port, decomposition gas outlet and cooling air inlet, and cooling blower is connected to cooling air inlet.In kiln body, be divided into preheating zone, calcining zone and cooling zone, the top of cooling zone is provided with lower suction bar.In kiln body, be provided with combustion chamber, combustion chamber is tube structure, between combustion chamber and kiln body, forms annular space.The top of combustion chamber is frustum type structure, and the top of frustum is provided with burner, and the side of frustum is provided with secondary air entrance.The bottom of combustion chamber is communicated with waste heat boiler by exhaust gases passes, and the lower sides of combustion chamber is provided with slag notch.Waste heat boiler is provided with steam coils, and steam coils is connected to power generation assembly.Decomposition gas outlet is connected with carbon dioxide treatment unit by induced draft fan, and the outlet of lower suction bar is connected to secondary air entrance or induced draft fan entrance, and cooling blower entrance is connected with carbon dioxide treatment unit or is communicated with atmosphere.
The wall of combustion chamber is built by laying bricks or stones and is formed or be made up of metallic substance by heat conduction brick structures, and described metallic substance comprises cast steel, cast iron or high temperature steel.Carbon dioxide treatment unit comprises purifying carbon dioxide equipment, carbonic acid gas cooling apparatus and carbon dioxide storage tank, and connects successively.Waste heat boiler is provided with venting port, and venting port is connected with exhaust emission system or carbon dioxide treatment unit.Burner is geseous fuel burner, liquid fuel burner or solid fuel burner, or the combination of above-mentioned burner.Burner is provided with wind entrance and coal powder entrance, and one time wind entrance is connected with gas blower or oxygen pipeline.Power generation assembly comprises steam turbine and generating set, and steam coils is connected with steam turbine, and steam turbine is connected with generating set.
The combustion-supporting gas of combustion chambers burn is air, oxygen-rich air or oxygen, if oxygen is made combustion-supporting gas firing, the flue gas producing after burning arrives carbon dioxide treatment unit through venting port.If air, oxygen-rich air are made combustion-supporting gas firing, the flue gas producing after burning arrives exhaust emission system through venting port.The cooling air of cool lime is selected air or carbonic acid gas, if make cooling air with air, cooled high temperature air enters combustion chamber through lower suction bar and secondary air entrance and makes secondary combustion-supporting wind.If make cooling gas with carbonic acid gas, cooled gas arrives the recycle of carbon dioxide treatment unit through lower suction bar and induced draft fan.
Shaft furnace is for the production of the dry-distillation incineration of lime, coal carbonization and coking, rubbish, calcining or the reduction iron production of pelletizing, the blue charcoal of coal carbonization production high-quality and can be used as the blue charcoal tail gas of high-quality of the raw material of LNG.。
In the telescopic shaft furnace of the utility model with power generation assembly, establish combustion chamber, add the material in heating kiln body by heat conduction brick structures muffle, be conducive to improve the quality of calcination product, reclaim high-pureness carbon dioxide.The flue gas of combustion chamber enters waste heat boiler, and steam driven electric power generation occurs, and improves thermo-efficiency, makes full use of heat resource.High-temperature gas after cooling zone cool lime product enters combustion chamber and makes secondary combustion-supporting wind, is conducive to improve the temperature of combustion air, reduces the energy expenditure in limestone kiln.Adopt the outer hot mode calcined limestone of external combustion, combustion chamber and decomposition of limestone chamber are separated, be beneficial to collect respectively high-pureness carbon dioxide and high-temperature waste flue gas cogeneration, not only reduce the energy consumption in limestone kiln, and can obtain this valuable industrial chemicals of high-purity carbon dioxide, improve limestone kiln overall economic efficiency.Do combustion-supporting gas with pure oxygen, the carbonic acid gas producing after burning reclaims carbonic acid gas by carbon dioxide treatment unit, does the medium circulation utilization of cool lime with carbonic acid gas, is conducive to reduce exhaust gas emission, environment protection.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model with the telescopic shaft furnace of power generation assembly;
Fig. 2 is the structural representation of the utility model another program;
Wherein:
1-carbon dioxide treatment unit, 2-induced draft fan, 3-opening for feed, the outlet of 4-decomposition gas, 5-kiln body, 6-annular space, 7-combustion chamber, 8-slag notch, 9-lower suction bar, 10-cooling blower, 11-coal powder entrance, 12-wind entrance, 13-secondary air entrance, 14-steam coils, 15-waste heat boiler, 16-discharge port, 17-purifying carbon dioxide equipment, 18-carbonic acid gas cooling apparatus, 19-carbon dioxide storage tank, 20-cooling air inlet, 21-burner, 22-exhaust gases passes, 23-carbonic acid gas induced draft fan.
specifically embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
Embodiment 1,
The utility model, with the telescopic shaft furnace of power generation assembly, as shown in Figure 1, comprises waste heat boiler 15, carbon dioxide treatment unit 1, power generation assembly, kiln body 5, induced draft fan 2, cooling blower 10, feeder apparatus, air feed system and fuel feed system.Kiln body is provided with opening for feed 3, discharge port 16, decomposition gas outlet 4 and cooling air inlet 20, and cooling blower is connected to cooling air inlet.In kiln body, be divided into preheating zone, calcining zone and cooling zone, the top of cooling zone is provided with lower suction bar 9.Power generation assembly comprises steam turbine and generating set, and steam turbine is coaxially connected with generating set.Carbon dioxide treatment unit 1 comprises purifying carbon dioxide equipment 17, carbonic acid gas cooling apparatus 18 and carbon dioxide storage tank 19, and purifying carbon dioxide equipment, carbonic acid gas cooling apparatus are connected successively with carbon dioxide storage tank.In kiln body 5, be provided with combustion chamber 7, combustion chamber is tube structure, and combustion chamber and the kiln bodily form circularize space 6.The wall of combustion chamber 7 is built by laying bricks or stones and is formed by heat conduction brick structures.The top of combustion chamber is frustum type structure, and the top of frustum is provided with burner 21, and burner is solid fuel burner, is provided with coal powder entrance 11 and a wind entrance 12.Coal powder entrance is connected with coal powder conveying system, and one time wind entrance is connected with oxygen pipeline, does combustion-supporting gas with pure oxygen.The side of frustum is provided with secondary air entrance 13, and secondary air entrance is closed state.The bottom of combustion chamber is communicated with waste heat boiler by exhaust gases passes 22, and the lower sides of combustion chamber is provided with slag notch 8.Waste heat boiler is provided with steam coils 14 and venting port, and steam coils is connected to steam turbine, and venting port is connected with carbon dioxide treatment unit 1.Decomposition gas outlet 4 is connected with carbon dioxide treatment unit by induced draft fan 2, and the outlet of lower suction bar is connected to induced draft fan entrance, and cooling blower entrance is connected with carbon dioxide treatment unit.
The utility model is that limestone material enters the annular space 6 of shaft furnace through feeder apparatus, opening for feed 3, through preheating zone preheating, go downwards to calcining zone with the operation scheme of the telescopic shaft furnace of power generation assembly.By combustion chamber 7 material of heat muffle heating and calcining band producing that burns, Wingdale thermolysis is lime and carbonic acid gas, and carbonic acid gas upwards moves after the material of preheating preheating zone through decomposition gas outlet 4 and induced draft fan 2 to carbon dioxide treatment unit 1.High temperature lime runs down to cooling zone, and the cooling air being bloated by cooling blower 10 enters cooling zone through cooling air inlet 20 and lime carried out cooling, and cooled lime is through discharge port 16 kiln discharges.Coal dust enters burner 21 through coal powder entrance 11, and the pure oxygen of oxygen pipeline enters burner as a wind through a wind entrance 12 and carries out combustion-supporting burning.Carbonic acid gas after cool lime enters carbon dioxide treatment unit through lower suction bar 9 and induced draft fan, and the venting port of waste heat boiler is also connected to carbon dioxide treatment unit.The slag of the molten state that combustion chambers burn produces is discharged through slag notch 8.The useless flue gas that burning produces enters waste heat boiler 15, by steam coils 14 heat-obtainings, utilizes the waste heat generation steam of flue gas, and steam driven steam turbine drives generator generating.Because the heating of Wingdale muffle is calcined, decomposition of limestone obtains fat lime and high temperature carbon dioxide decomposition gas, decomposition gas enters carbon dioxide treatment unit, after purifying carbon dioxide equipment 17 purifying and dedustings, carbonic acid gas cooling apparatus 18 are cooling, store to carbon dioxide storage tank 19, a part of carbonic acid gas circulates as the medium of cool lime.
Embodiment 2
As shown in Figure 2, one time wind entrance 12 is connected with gas blower another embodiment of the utility model, makes combustion air with air.Cooling blower 10 entrances be communicated with atmosphere, make lime cooling air with air.Decomposition gas outlet 4 is connected with carbon dioxide treatment unit 1 by induced draft fan 2, and the venting port of waste heat boiler is connected to exhaust emission system.The carbonic acid gas that the carbonic acid gas that decomposition of limestone produces and pure oxygen and fuel combustion produce together enters carbon dioxide treatment unit.The outlet of lower suction bar 9 is connected to secondary air entrance 13 by carbonic acid gas induced draft fan 23, makes the secondary combustion-supporting wind of combustion chambers burn with the high temperature air after cool lime.Other structure and operation are identical with embodiment 1.
Claims (7)
1. the telescopic shaft furnace with power generation assembly, comprise waste heat boiler (15), carbon dioxide treatment unit (1), power generation assembly, kiln body (5), induced draft fan (2), cooling blower (10), feeder apparatus, air feed system and fuel feed system, kiln body is provided with opening for feed (3), discharge port (16), decomposition gas outlet (4) and cooling air inlet (20), and cooling blower is connected to cooling air inlet; In kiln body, be divided into preheating zone, calcining zone and cooling zone, cooling zone is provided with lower suction bar (9); It is characterized in that: in described kiln body (5), be provided with combustion chamber (7), combustion chamber is tube structure, forms annular space (6) between combustion chamber and kiln body; The top of described combustion chamber is frustum type structure, and the top of frustum is provided with burner (21), and the side of frustum is provided with secondary air entrance (13); The bottom of combustion chamber is communicated with waste heat boiler by exhaust gases passes (22), and the sidewall of bottom, combustion chamber is provided with slag notch (8); Described waste heat boiler is provided with steam coils (14), and steam coils is connected to power generation assembly; Described decomposition gas outlet (4) is connected with carbon dioxide treatment unit by induced draft fan (2), and described lower suction bar outlet is connected to secondary air entrance or induced draft fan entrance, and described cooling blower entrance is connected with carbon dioxide treatment unit or is communicated with atmosphere.
2. according to claim 1 with the telescopic shaft furnace of power generation assembly, it is characterized in that: the wall of combustion chamber (7) is built by laying bricks or stones and formed or be made up of metallic substance by heat conduction brick structures, and described metallic substance comprises cast steel, cast iron or high temperature steel.
3. according to claim 1 with the telescopic shaft furnace of power generation assembly, it is characterized in that: described carbon dioxide treatment unit (1) comprises purifying carbon dioxide equipment (17), carbonic acid gas cooling apparatus (18) and carbon dioxide storage tank (19), and connect successively.
4. according to claim 1 with the telescopic shaft furnace of power generation assembly, it is characterized in that: described waste heat boiler (15) is provided with venting port, described venting port is connected with exhaust emission system or carbon dioxide treatment unit.
5. according to claim 1 with the telescopic shaft furnace of power generation assembly, it is characterized in that: described burner (21) is geseous fuel burner, liquid fuel burner or solid fuel burner, or the combination of above-mentioned burner.
6. according to claim 1 with the telescopic shaft furnace of power generation assembly, it is characterized in that: described burner (21) is provided with a wind entrance (12) and coal powder entrance (11), a described wind entrance is connected with gas blower or oxygen pipeline.
7. according to claim 1 with the telescopic shaft furnace of power generation assembly, it is characterized in that: described power generation assembly comprises steam turbine and generating set, steam coils (14) is connected with steam turbine, and steam turbine is connected with generating set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420367346.0U CN204022689U (en) | 2014-07-04 | 2014-07-04 | A kind of telescopic shaft furnace with power generation assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420367346.0U CN204022689U (en) | 2014-07-04 | 2014-07-04 | A kind of telescopic shaft furnace with power generation assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204022689U true CN204022689U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420367346.0U Expired - Fee Related CN204022689U (en) | 2014-07-04 | 2014-07-04 | A kind of telescopic shaft furnace with power generation assembly |
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| CN (1) | CN204022689U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119007A (en) * | 2014-07-04 | 2014-10-29 | 石家庄新华能源环保科技股份有限公司 | Sleeve type shaft kiln with power generation device |
| CN106282469A (en) * | 2016-08-24 | 2017-01-04 | 古恒威 | A kind of efficient ferrum purifying plant |
-
2014
- 2014-07-04 CN CN201420367346.0U patent/CN204022689U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119007A (en) * | 2014-07-04 | 2014-10-29 | 石家庄新华能源环保科技股份有限公司 | Sleeve type shaft kiln with power generation device |
| CN104119007B (en) * | 2014-07-04 | 2016-05-04 | 石家庄新华能源环保科技股份有限公司 | A kind of telescopic shaft furnace with TRT |
| CN106282469A (en) * | 2016-08-24 | 2017-01-04 | 古恒威 | A kind of efficient ferrum purifying plant |
| CN106282469B (en) * | 2016-08-24 | 2018-08-14 | 古恒威 | A kind of efficient iron purifying plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20160704 |
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| CF01 | Termination of patent right due to non-payment of annual fee |