CN204058258U - The device of a kind of calcined limestone, power generating simultaneously reduced iron - Google Patents
The device of a kind of calcined limestone, power generating simultaneously reduced iron Download PDFInfo
- Publication number
- CN204058258U CN204058258U CN201420389320.6U CN201420389320U CN204058258U CN 204058258 U CN204058258 U CN 204058258U CN 201420389320 U CN201420389320 U CN 201420389320U CN 204058258 U CN204058258 U CN 204058258U
- Authority
- CN
- China
- Prior art keywords
- partition
- reduction
- furnace
- reduced iron
- gasification
- 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.)
- Withdrawn - After Issue
Links
Classifications
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
-
- 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
- Y02P10/20—Recycling
-
- 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 device of the utility model calcined limestone, power generating simultaneously reduced iron, device comprises partition calcining furnace, partition vapourizing furnace, partition reduction furnace, gas retort and generating set.Limestone calcination, gasification and reduction iron production are partition heating installation.The exhaust steam of the tail gas that the carbonic acid gas that calcining produces, reduction iron production process produce after generating carries out gasification as entering partition vapourizing furnace together with vaporized chemical.The carbon monoxide that gasification produces and a hydrogen part enter partition reduction furnace and reduce, and another part is for the preparation of CNG, and thick reduced iron is to the refining of reduced iron refinery unit.For there is steam driven power generation in the flue gas that limestone calcination, gasification and reduction iron production process combusts produce.Calcining furnace, vapourizing furnace, gas retort, reduction iron-making furnace and generating set are combined by the utility model, simplify technical process, decrease power loss and power consumption, reduce production and transportation cost, are conducive to environment protection.
Description
Technical field
The utility model belongs to Chemical Manufacture and equipment technical field, relates to the device of a kind of calcined limestone, power generating simultaneously reduced iron.
Background technology
Limestone kiln is large-scale high energy consuming devices, and along with the fast development of national economy, the waste heat of industrial furnace is very abundant, availablely has a high potential.The industry of Iron And Steel Industry, calcium carbide, aluminum oxide industry and refractory industry are lime consumption rich anies influential family, and the quick growth of above-mentioned industry, has driven the high speed development in limestone kiln.Lime kiln afterheat is recycled, can save energy consumption, reduces lime production cost, reduces the discharge of pollutent simultaneously.But the efficiency utilized is low, publication number is that open " one can reclaim CO to the Chinese invention patent application of CN 102786234 A
2u-shaped internal combustion rotary lime kiln, utilization is rotary kiln shape, U-shaped muffle process furnace is set in kiln body and U-shaped calcines chamber, blade is laid with on muffle process furnace inwall and on calcining cavity wall, also is communicated with calcining chamber and charging limestone mouth is provided with collector "; the just carbonic acid gas that the method is collected; and the utilization to other a tail gas not step again; cause a large amount of waste heats and gas purging and waste; owing to there is above many problems, never has good method and makes the utilization of limestone kiln tail gas can reach a high level.
Utility model content
The purpose of this utility model is to provide the device of a kind of calcined limestone, power generating simultaneously reduced iron, associating limestone calcination, the dry distillation of coal, gasification, reduction iron production process and power generation process, energy utilizes mutually, resource sharing, simplification of flowsheet, reduce lime, generating, reduction iron production and coking production cost, improve production capacity.
The technical solution of the utility model is: the device of calcined limestone, power generating simultaneously reduced iron, comprise partition calcining furnace, partition vapourizing furnace, partition reduction furnace and generating set, partition calcining furnace is provided with calcining compartment and calcination combustion room, partition vapourizing furnace is provided with vaporizer and gasification combustion chamber, and partition reduction furnace is provided with reduction room and reduction combustion chamber.Calcination combustion room, gasification combustion chamber are connected with generating set with reduction combustion chamber.The decomposition gas outlet of calcining compartment and the exhaust steam pipeline of generating set are connected respectively to the gasification agent inlet of vaporizer, and the coke export of gas retort is connected to the gasified raw material entrance of vaporizer.The gas exit of vaporizer is connected respectively to the reducing gas entrance of reduction room and CNG prepares unit, and the carbon residue outlet of vaporizing chamber is connected to carbon residue warehouse.The reduced iron outlet of reduction room is connected to reduced iron refinery unit, and the offgas outlet of reduction room connects the gasification agent inlet of vaporizer.
Generating set comprises waste heat boiler, steam turbine and generating set, and waste heat boiler is provided with steam coils.Calcination combustion room, gasification combustion chamber and reduction combustion chamber are connected to waste heat boiler, and steam coils is connected with steam turbine, and steam turbine is connected with generating set.The coking gas outlet of gas retort is connected to coking gas separation and purification unit.Partition calcining furnace, partition vapourizing furnace and partition reduction furnace are partition rotary kiln, partition shaft furnace, partition ring kiln or partition rotary hearth furnace, do not get rid of other type of furnace.Calcination combustion room, gasification combustion chamber and reduction combustion chamber are provided with burner, and burner is geseous fuel burner, liquid fuel burner or solid fuel burner, or the combination of above-mentioned burner.Carbon residue warehouse is connected to the solid fuel burner of calcination combustion room, gasification combustion chamber and reduction combustion chamber by milling equipment and handling equipment.
The method of calcined limestone, power generating simultaneously reduced iron is, comprise limestone calcination, the dry distillation of coal, gasification and reduction iron production process, limestone calcination, gasification and reduction iron production are partition heating, and the flue gas that limestone calcination, gasification and reduction iron production process combusts produce is for steam driven power generation occurs.Wingdale is sintered into lime through partition calcining furnace, and coal extracts after coal tar and coking gas through gas retort and enters partition vapourizing furnace, and powdered iron ore enters partition reduction furnace.The carbonic acid gas that limestone calcination produces and the exhaust steam after generating electricity carry out gasification as entering partition vapourizing furnace together with vaporized chemical.Gasification generation carbon monoxide and a hydrogen part enter partition reduction furnace and carry out melting and reducing, and another part is for the preparation of compressed natural gas; The carbonic acid gas that reduction iron production process produces and water vapour make vaporized chemical to gasification reduction furnace, and thick reduced iron is to the refining of reduced iron refinery unit.
The carbon residue that gasification produces is used as the fuel of limestone calcination, gasification and reduction iron production partition heating unit combustion chamber.
The device of the utility model calcined limestone, power generating simultaneously reduced iron is by combining partition calcining furnace, vapourizing furnace, gas retort, vapourizing furnace, reduction iron-making furnace and generating set, the product of last process is that next procedure improves raw material or energy, simplify Production Flow Chart, reduce power loss and the power consumption of material conveying process, reduce production and transportation cost.Use partition calcining furnace to be conducive to reclaiming high-pureness carbon dioxide, improve the quality of calcination product.Gasify at partition vaporizer for vaporized chemical with carbonic acid gas and water vapour, avoid nitrogen and carbonic acid gas to enter, be conducive to the coal gas of production high purity, high heating value, directly make raw material and the reducing gas of CNG.Use partition reduction furnace to carry out reduction iron production, be conducive to the reducing atmosphere keeping reduction process, optimize the quality of reduced iron.The flue gas that the burning of each process combusts room produces is generated electricity by steam boiler generation steam, makes full use of chemical process waste heat, improves the economy of machinery.The carbon residue of gasification is calcined, gasify and the fuel of reduction process, and not only waste material is fully used, and is conducive to environment protection.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of device of the utility model calcined limestone, power generating simultaneously reduced iron;
Wherein:
1-partition calcining furnace, 1a-calcining compartment, 1b-calcination combustion room, 2-partition vapourizing furnace, 2a-vaporizer, 2b-gasification combustion chamber, 3-partition reduction furnace, 3a-reduction room, 3b-reduction combustion chamber, 4-generating set, 5-gas retort, 6-CNG prepare unit, 7-reduced iron refinery unit, 8-exhaust steam pipeline.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in detail.The utility model protection domain is not limited to embodiment, and those skilled in the art make the scope that any change also belongs to the utility model protection in the scope that claim limits.
The device of the utility model calcined limestone, power generating simultaneously reduced iron, comprises partition calcining furnace 1, partition vapourizing furnace 2, partition reduction furnace 3, gas retort 5, CNG prepares unit 6, reduced iron refinery unit 7 and generating set 4.Partition calcining furnace is partition rotary kiln, is provided with calcining compartment 1a and calcination combustion room 1b.Partition vapourizing furnace and partition reduction furnace are partition shaft furnace.Partition vapourizing furnace is provided with vaporizer 2a and gasification combustion chamber 2b, and partition reduction furnace is provided with reduction room 3a and reduction combustion chamber 3b.Generating set comprises waste heat boiler, generating set, steam turbine and exhaust steam pipeline, and waste heat boiler is provided with steam coils.Calcination combustion room, gasification combustion chamber and reduction combustion chamber are connected to waste heat boiler, and steam coils is connected with steam turbine, and steam turbine is connected with generating set.Calcining compartment is provided with decomposition gas outlet, and vaporizer is provided with the outlet of gasification agent inlet, gas exit and carbon residue, and reduction room is provided with feed(raw material)inlet, reducing gas entrance, reduced iron outlet and offgas outlet.The exhaust steam pipeline 8 of decomposition gas outlet and generating set is connected respectively to the gasification agent inlet of vaporizer, and the coke export of gas retort is connected to the gasified raw material entrance of vaporizer.The gas exit of vaporizer is connected respectively to the reducing gas entrance of reduction room and CNG prepares unit 6, and the carbon residue outlet of vaporizing chamber is connected to carbon residue warehouse.The reduced iron outlet of reduction room is connected to reduced iron refinery unit 7, and the offgas outlet of reduction room connects the gasification agent inlet of vaporizer.The coking gas outlet of gas retort 5 is connected to coking gas separation and purification unit.Calcination combustion room, gasification combustion chamber and reduction combustion chamber are provided with solid fuel burner, and carbon residue warehouse is connected to milling equipment, and milling equipment is connected to the solid fuel burner of calcination combustion room, gasification combustion chamber and reduction combustion chamber by handling equipment.
The process of the utility model calcined limestone, power generating simultaneously reduced iron is, Wingdale enters the calcining compartment 1a of partition calcining furnace 1, the limestone material of 1b residual powdered carbon combustion muffle heating and calcining room, calcination combustion room, the lime kiln discharge after calcining.Coal raw material enters gas retort 5 and carries out coal carbonization process, and after destructive distillation, gas carries out gas-liquid separation to coking gas separation and purification unit, separates coal tar oil and gas, and after destructive distillation, coke enters the vaporizer 2a of partition vapourizing furnace.The carbonic acid gas that calcining compartment calcined limestone decomposes exports through decomposition gas, and the exhaust steam after power generation enters vaporizing chamber through gasification agent inlet together through exhaust steam pipeline.The material of gasification combustion chamber 2b residual powdered carbon combustion muffle heating and gasifying room, carry out coal gasification course, carbon residue exports to carbon residue warehouse through carbon residue.Powdered iron ore enters reduction room 3a through feed(raw material)inlet, coal gas (CO and H after vaporizer gasification
2) being divided into two-way through gas exit, unit style is prepared for compressed natural gas to CNG in a road, and a road enters reduction room through reducing gas entrance and makes reducing gas, and carbon residue exports to carbon residue warehouse through carbon residue.The material of reduction combustion chamber 3b residual powdered carbon combustion muffle heat reduction room, fused reduction iron-smelting process is carried out under reducing atmosphere, the tail gas that reduction iron production produces comprises water vapour and carbonic acid gas and enters vaporizer through gasification agent inlet and make vaporized chemical, and the reduced iron of generation exports to reduced iron refinery unit 7 through reduced iron and carries out treating process.Carbon residue warehouse wears into carbon residue powder through pulverizing mill, is transported to calcination combustion room, gasification combustion chamber and reduction combustion chamber makes fuel through pneumatic conveyor.The flue gas that calcination combustion room, gasification combustion chamber and reduction combustion chambers burn produce is to through exhaust gas boiler, and the steam coils heat-obtaining generation steam of through exhaust gas boiler, steam driven steam turbine rotates, and drive electrical generators group generates electricity.Part exhaust steam warp let-off exhaust pipe after steam turbine acting makes vaporized chemical to vaporizer.
Claims (6)
1. the device of a calcined limestone, power generating simultaneously reduced iron, comprise partition calcining furnace (1), partition vapourizing furnace (2), partition reduction furnace (3), gas retort (5) and generating set (4), described partition calcining furnace is provided with calcining compartment (1a) and calcination combustion room (1b), described partition vapourizing furnace is provided with vaporizer (2a) and gasification combustion chamber (2b), and described partition reduction furnace is provided with reduction room (3a) and reduction combustion chamber (3b); Calcination combustion room, gasification combustion chamber are connected with generating set with reduction combustion chamber, it is characterized in that: the decomposition gas outlet of described calcining compartment and the exhaust steam pipeline (8) of generating set are connected respectively to the gasification agent inlet of vaporizer, and the coke export of described gas retort is connected to the gasified raw material entrance of vaporizer; The gas exit of described vaporizer is connected respectively to the reducing gas entrance of reduction room and CNG prepares unit (6), and the carbon residue outlet of vaporizer is connected to carbon residue warehouse; The reduced iron outlet of described reduction room is connected to reduced iron refinery unit (7), and the offgas outlet of reduction room connects the gasification agent inlet of vaporizer.
2. the device of calcined limestone according to claim 1, power generating simultaneously reduced iron, is characterized in that: described generating set comprises waste heat boiler, steam turbine and generating set, and waste heat boiler is provided with steam coils; Described calcination combustion room, gasification combustion chamber and reduction combustion chamber are connected to waste heat boiler, and steam coils is connected with steam turbine, and steam turbine is connected with generating set.
3. the device of calcined limestone according to claim 1, power generating simultaneously reduced iron, is characterized in that: the coking gas outlet of described gas retort (5) is connected to coking gas separation and purification unit.
4. the device of calcined limestone according to claim 1, power generating simultaneously reduced iron, is characterized in that: described partition calcining furnace (1), partition vapourizing furnace (2) and partition reduction furnace (3) are partition rotary kiln, partition shaft furnace, partition ring kiln or partition rotary hearth furnace.
5. the device of calcined limestone according to claim 1, power generating simultaneously reduced iron, it is characterized in that: described calcination combustion room (1b), gasification combustion chamber (2b) and reduction combustion chamber (3b) are provided with burner, described burner is geseous fuel burner, liquid fuel burner or solid fuel burner, or the combination of above-mentioned burner.
6. the device of calcined limestone according to claim 5, power generating simultaneously reduced iron, is characterized in that: described carbon residue warehouse by milling equipment and handling equipment be connected to calcination combustion room (1b), gasification combustion chamber (2b) and reduction combustion chamber (3b) solid fuel burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420389320.6U CN204058258U (en) | 2014-07-15 | 2014-07-15 | The device of a kind of calcined limestone, power generating simultaneously reduced iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420389320.6U CN204058258U (en) | 2014-07-15 | 2014-07-15 | The device of a kind of calcined limestone, power generating simultaneously reduced iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204058258U true CN204058258U (en) | 2014-12-31 |
Family
ID=52199810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420389320.6U Withdrawn - After Issue CN204058258U (en) | 2014-07-15 | 2014-07-15 | The device of a kind of calcined limestone, power generating simultaneously reduced iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204058258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129929A (en) * | 2014-07-15 | 2014-11-05 | 石家庄新华能源环保科技股份有限公司 | Method and device used for calcining limestone, generating power, and co-generating reduced iron |
-
2014
- 2014-07-15 CN CN201420389320.6U patent/CN204058258U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129929A (en) * | 2014-07-15 | 2014-11-05 | 石家庄新华能源环保科技股份有限公司 | Method and device used for calcining limestone, generating power, and co-generating reduced iron |
| CN104129929B (en) * | 2014-07-15 | 2016-02-10 | 石家庄新华能源环保科技股份有限公司 | The method and apparatus of a kind of calcined limestone, power generating simultaneously reduced iron |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104129929B (en) | The method and apparatus of a kind of calcined limestone, power generating simultaneously reduced iron | |
| CN104016596B (en) | A kind of rotary kiln with power generation assembly | |
| CN102303883B (en) | Method for preparing calcium oxide and sulfur by double-atmosphere fluidized roasting of desulfurated gypsum | |
| CN101250419B (en) | Low-temperature dry distillation process with coal gas internal heat | |
| CN101830464A (en) | Technique for producing calcium carbide and cogeneration by two-stage method and device thereof | |
| CN102942943B (en) | Oil shale gas-solid heat carrier dry distillation and semicoke combustion electricity generation integral process | |
| CN101817525A (en) | Process and device for producing calcium carbide by using powder raw materials through two-stage method | |
| CN104004548B (en) | A kind of gasification production equipment | |
| CN104058608B (en) | A kind of shaft furnace of partition heated material | |
| CN104129931B (en) | A kind of indirect heating roasting assembly with generating set | |
| CN203947031U (en) | A kind of rotary kiln with power generation assembly | |
| CN105733730A (en) | Biomass micron carbonized power high-temperature combustion method | |
| CN105314894A (en) | Rotary kiln device and method for indirectly producing lime and recycling carbon dioxide | |
| CN104119007B (en) | A kind of telescopic shaft furnace with TRT | |
| CN204058258U (en) | The device of a kind of calcined limestone, power generating simultaneously reduced iron | |
| CN204058261U (en) | A kind of indirect heating roasting assembly with generating set | |
| CN204125382U (en) | A kind of partition shaft furnace with power generation assembly | |
| CN204625479U (en) | A kind of indirect calcination is produced lime, is reclaimed the rotary kiln device of carbonic acid gas | |
| CN204474704U (en) | The partition rotary kiln device of coking ironmaking cogeneration | |
| CN204022689U (en) | A kind of telescopic shaft furnace with power generation assembly | |
| CN210261658U (en) | System for preparing coal gas by pyrolyzing crude coke water vapor in thermal power plant | |
| CN104119006B (en) | A kind of lime shaft kiln of built-in combustion room | |
| CN204022684U (en) | A kind of lime production device with generating set | |
| CN205838931U (en) | A kind of preparation system of gas-based shaft kiln reducing gases | |
| CN203006962U (en) | Biomass gas calcining magnesium oxide system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141231 Effective date of abandoning: 20160210 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |