CN204058261U - A kind of indirect heating roasting assembly with generating set - Google Patents
A kind of indirect heating roasting assembly with generating set Download PDFInfo
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- CN204058261U CN204058261U CN201420424199.6U CN201420424199U CN204058261U CN 204058261 U CN204058261 U CN 204058261U CN 201420424199 U CN201420424199 U CN 201420424199U CN 204058261 U CN204058261 U CN 204058261U
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- Prior art keywords
- combustion chamber
- generating set
- gas outlet
- carbon dioxide
- air entrance
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 27
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 89
- 238000002485 combustion reaction Methods 0.000 claims abstract description 72
- 239000007789 gas Substances 0.000 claims abstract description 56
- 238000001354 calcination Methods 0.000 claims abstract description 46
- 239000001301 oxygen Substances 0.000 claims abstract description 38
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 38
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 37
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 37
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000003546 flue gas Substances 0.000 claims abstract description 35
- 239000002918 waste heat Substances 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 238000005192 partition Methods 0.000 claims abstract description 19
- 239000002893 slag Substances 0.000 claims abstract description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000605 extraction Methods 0.000 claims abstract description 16
- 239000002912 waste gas Substances 0.000 claims abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 3
- 239000000446 fuel Substances 0.000 claims description 37
- 238000000354 decomposition reaction Methods 0.000 claims description 32
- 239000000779 smoke Substances 0.000 claims description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 238000010079 rubber tapping Methods 0.000 claims description 12
- 239000002817 coal dust Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 239000011449 brick Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 4
- 239000004449 solid propellant Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract description 3
- 239000003345 natural gas Substances 0.000 abstract description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 18
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 13
- 235000011941 Tilia x europaea Nutrition 0.000 description 13
- 239000004571 lime Substances 0.000 description 13
- 235000019738 Limestone Nutrition 0.000 description 9
- 239000006028 limestone Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000005997 Calcium carbide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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 relates to a kind of indirect heating roasting assembly with generating set, comprises combustion chamber, cyclonic separator, partition calcining furnace, waste heat boiler, generating set, oxygen production unit and carbon dioxide extraction equipment.Combustion chamber is provided with burner, secondary air entrance, high-temperature flue gas outlet, molten slag bath and slag notch, and burner is positioned at top or the sidepiece of combustion chamber, and secondary air entrance is positioned at the sidepiece of combustion chamber, and secondary air entrance is tangentially installed or radial installation.High-temperature flue gas outlet is connected to waste heat boiler by cyclonic separator and partition heating unit, the steam coils of waste heat boiler is connected with generating set, waste heat boiler flue is set to bendable, is aided with clean burning burner, makes waste gas dustiness reach combustion of natural gas emission standard.The exhanst gas outlet of waste heat boiler and carbon dioxide extraction equipment connection.Generating set is connected with oxygen production unit circuit by controller switching equipment, and oxygen production unit is connected with oxygen canister and nitrogen pot.The utility model is by external combustion chamber, and the material of flue gas in partition calcining compartment muffle heating and calcining room, is conducive to the quality improving calcination product, reclaims high-pureness carbon dioxide, steam driven electric power generation occurs, makes full use of heat resource.
Description
Technical field
The utility model belongs to chemical materials production unit technical field, relates to a kind of industrial vertical kiln, is specifically related to a kind of indirect heating roasting assembly with generating set.
Background technology
Lime kiln afterheat is recycled, can save energy consumption, reduces lime production cost, reduces the discharge of pollutent simultaneously.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.In process of production, smog discharge temperature is high for large-scale active lime production line, is effectively utilized by this part fume afterheat, can reduce energy dissipation, increases economy and the feature of environmental protection in limestone kiln.Decomposition of limestone produce carbonic acid gas be precious resources, due to decompose carbonic acid gas and combustion product gases mix, be unfavorable for recovery and the utilization of carbonic acid gas.
The applicant is that 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 of CN102338565A at publication number.By the cryogenic gas in working medium preheater limestone kiln by working medium preheating, by vapour generator thermal oil liberated heat, the working medium after preheating is converted into steam, recycling steam turbine drives electrical power generators, the electricity produced can be used for and uses to lime kiln device electrical equipment, also can be incorporated to the total net of electric power ".The utility model is the improvement in above-mentioned patented technology.
Utility model content
The purpose of this utility model is to provide a kind of indirect heating roasting assembly with generating set, combustion chamber and partition calcining furnace are separated, be conducive to the cogeneration of collecting highly purified carbonic acid gas He utilizing combustion product gases, reduce the energy expenditure in limestone kiln, improve limestone kiln overall economic efficiency.
The indirect heating roasting assembly of the utility model band generating set, comprises combustion chamber, cyclonic separator, partition calcining furnace, waste heat boiler and generating set.Generating set is provided with steam turbine and generator, and steam turbine is connected with generator.Device is provided with oxygen production unit and carbon dioxide extraction equipment.Combustion chamber is provided with burner, secondary air entrance, high-temperature flue gas outlet, molten slag bath and slag notch, and burner is positioned at top or the sidepiece of combustion chamber, and burner is provided with First air entrance and fuel inlet.Secondary air entrance is positioned at the sidepiece of combustion chamber, and secondary air entrance is tangentially installed or radial installation, and high-temperature flue gas outlet and slag notch are positioned at the bottom of combustion chamber.Waste heat boiler establishes steam coils and exhanst gas outlet, and steam coils is connected with steam turbine.High-temperature flue gas outlet is connected to waste heat boiler by cyclonic separator and partition roasting assembly, the exhanst gas outlet of waste heat boiler and carbon dioxide extraction equipment connection.Generating set is connected with oxygen production unit circuit by controller switching equipment, and oxygen production unit is connected with oxygen canister and nitrogen pot.
Partition calcining furnace has calcining compartment and smoke chamber, and calcining compartment setting alternate with smoke chamber, separates with heat conduction brick between calcining compartment and smoke chamber.Smoke chamber is provided with inlet mouth and air outlet, and inlet mouth is connected with Cyclone outlet, and air outlet is connected with waste heat boiler.Calcining compartment is provided with charging opening, discharge port, decomposition gas outlet and tapping channel, and charging opening is communicated with charging vehicle, and discharge port is connected with tapping channel.Be provided with air-circulating fan in calcining compartment, air-circulating fan is connected with blower fan.Smoke chamber is provided with firebreak, the upper and lower alternate setting of firebreak, forms bending flue.The top of smoke chamber is provided with clean fuel nozzle, and bottom is provided with slag-drip opening.Inlet mouth is positioned at the bottom of calcining compartment one end, and air outlet is positioned at the top of the calcining compartment the other end.Device is provided with carbon dioxide treatment unit, and carbon dioxide treatment unit is provided with decomposition gas treating plant, decomposition gas cooling apparatus Sum decomposition gas storage tank, and decomposition gas treating plant, decomposition gas cooling apparatus Sum decomposition gas storage tank connect successively.Decomposition gas outlet is connected with decomposition gas treating plant.Carbon dioxide extraction equipment is provided with carbon dioxide outlet and waste gas outlet, and carbon dioxide outlet is connected with carbon dioxide treatment unit, and waste gas outlet is connected with exhaust emission system.Tapping channel is provided with heat-eliminating medium entrance, and heat-eliminating medium entrance is connected with cooling medium circulation system.
Combustion chamber is vertical cylindrical structure or horizontal cylinder body structure.The burner of vertical cylindrical structure combustion chamber is positioned at the top of combustion chamber, and high-temperature flue gas outlet is positioned at the bottom of combustion chamber.The burner of horizontal cylinder body structure combustion chamber is positioned at the side of combustion chamber, and high-temperature flue gas outlet is positioned at the opposite side of combustion chamber.Combustion chamber is provided with tertiary air entrance, and the tertiary air entrance of vertical cylindrical structure combustion chamber is positioned at the bottom of high-temperature flue gas outlet, and the tertiary air entrance of horizontal cylinder body structure combustion chamber is positioned at the top of high-temperature gas outlet.Secondary air entrance and tertiary air ingress are provided with assisted fuel nozzle, and described assisted fuel nozzle is gas fuel nozzle, liquid fuel nozzle or solid fuel nozzle.First air entrance, secondary air entrance are connected with gas blower and oxygen canister respectively with tertiary air entrance, and air-breathing, oxygen-enriched combustion-supporting or pure oxygen combustion-supporting are carried out in combustion chamber.Cyclone outlet is provided with the bypass to waste heat boiler, and described bypass is provided with valve.Device is provided with coal dust processing unit; coal dust processing unit comprises to be carried Jiao and carries oily equipment, coke powder bin container loader and handling equipment; Pulverized Coal Bin with carry Jiao and carry oily equipment connection; carry Jiao to carry oily equipment and be connected with coke powder bin container loader; coke powder bin container loader is connected with handling equipment; handling equipment is connected to fuel inlet, and the carbonic acid gas extracted by carbon dioxide extraction equipment or the rear carbonic acid gas produced of lime partition calcining pass in coke powder torage tank as protection gas.
The indirect heating roasting assembly of the utility model band generating set is by external combustion chamber, and the material of flue gas in partition calcining compartment muffle heating and calcining room that burning produces, is conducive to the quality improving calcination product, reclaims high-pureness carbon dioxide.Flue gas after calcining materials enters steam boiler, steam driven electric power generation occurs, makes full use of heat resource, be conducive to improving the economic and social benefits.Send a part for electric power for oxygen production unit Preparation of oxygen, the oxygen fraction prepared, for combustion chamber pure oxygen or oxygen-enriched combusting, is conducive to reclaiming carbonic acid gas, reduces exhaust gas emission.The decomposition gas produced after doing combustion-supporting gas burning with pure oxygen reclaims carbonic acid gas by carbon dioxide treatment unit.The medium circulation making cool lime with carbonic acid gas utilizes, and is conducive to reducing exhaust gas emission, environment protection.Arrange tertiary air entrance as combustion air entrance for subsequent use, when First air and secondary air are not enough, supplement combustion air from tertiary air entrance, the auxiliary fuel spout of secondary air ingress and tertiary air ingress can overheavy firing effect, improves flue-gas temperature.The high-temperature flue gas produced by combustion chamber enters the smoke chamber of partition roasting assembly through high-temperature flue gas outlet, repeatedly transfer flue and clean fuel burner is provided with in smoke chamber, residual ash slag in flue gas is melted by heat again, and in tortuous flue, frequently clash into wall and be captured, liquid state melts slag outside liquid slag-drip opening discharger.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the indirect heating roasting assembly of the utility model band generating set;
Fig. 2 is the A-A figure of Fig. 1;
Fig. 3 is the B-B figure of Fig. 1;
Fig. 4 is the structural representation of horizontal combustion chamber.
Wherein:
1-fuel inlet, 2-First air entrance, 3-burner, 4-secondary air entrance, 5-combustion chamber, 6-molten slag bath, 7-slag notch, 8-combustion chamber wall, 9-high-temperature flue gas exports, 10-cyclonic separator, 11-valve, 12-decomposition gas exports, 13-assisted fuel nozzle, 14-tertiary air entrance, 15-air outlet, 16-smoke chamber, 17-inlet mouth, 18-partition calcining furnace, 19-blower fan, 20-air-circulating fan, 21-calcining compartment, 22-heat conduction brick, 23-discharge port, 24-tapping channel, 25-heat-eliminating medium entrance, 26-exhanst gas outlet, 27-steam coils, 28-waste heat boiler, 29-steam turbine, 30-generator, 31-controller switching equipment, 32--oxygen production unit, 33--charging vehicle, 34-charging opening, 35-carbon dioxide treatment unit, 36-carbon dioxide extraction equipment, 37-gas blower, 38-bypass, 39-slag-drip opening, 40-carry Jiao to carry oily equipment, 41-coke powder bin container loader, 42-handling equipment, 43-clean fuel nozzle, 44-firebreak, 45-bending flue.
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 indirect heating roasting assembly of the utility model band generating set, as shown in Figure 1 and Figure 2, combustion chamber 5, cyclonic separator 10, partition calcining furnace 18, waste heat boiler 28, oxygen production unit 32, carbon dioxide extraction equipment 36, coal dust processing unit and carbon dioxide treatment unit 35 is comprised.Generating set is provided with steam turbine 29 and generator 30, and steam turbine is connected with generator.Waste heat boiler establishes steam coils 27 and exhanst gas outlet 26, and steam coils is connected with steam turbine.Combustion chamber 5 is vertical cylindrical structure, and the combustion chamber wall 8 of combustion chamber adds water wall structure for laying fireproof bricks.Combustion chamber is provided with burner 3, secondary air entrance 4, high-temperature flue gas outlet 9, tertiary air entrance 14, molten slag bath 6 and slag notch 7, and burner is positioned at the top of combustion chamber, and high-temperature flue gas outlet 9 and slag notch are positioned at the bottom of combustion chamber.Burner is provided with fuel inlet 1 and First air entrance 2.Coal dust processing unit comprises to be carried Jiao and carries oily equipment 40, coke powder bin container loader 41 and handling equipment 42, Pulverized Coal Bin with carry Jiao and carry oily equipment connection, carry Jiao to carry oily equipment and be connected with coke powder bin container loader, coke powder bin container loader is connected with handling equipment, and handling equipment is connected to fuel inlet 1.Secondary air entrance 4 is positioned at the sidepiece of combustion chamber, secondary air entrance is tangentially installed, tertiary air entrance is positioned at the bottom of high-temperature flue gas outlet 9, and First air entrance, secondary air entrance are connected with gas blower 37 and oxygen canister respectively with tertiary air entrance, and connecting pipeline is provided with valve 11.Secondary air entrance and tertiary air ingress are provided with assisted fuel nozzle 13, and the assisted fuel nozzle of secondary air ingress is liquid fuel nozzle, and the assisted fuel nozzle of tertiary air ingress is gas fuel nozzle.Partition calcining furnace 18 has calcining compartment 21 and smoke chamber 16, and calcining compartment setting alternate with smoke chamber, separates with heat conduction brick 22 between calcining compartment and smoke chamber.As shown in Figure 3, smoke chamber 16 is provided with firebreak 44, the upper and lower alternate setting of firebreak, forms bending flue.The top of smoke chamber is provided with clean fuel nozzle 43, and bottom is provided with slag-drip opening 39.Smoke chamber is provided with inlet mouth 17 and air outlet 15, and inlet mouth is positioned at the bottom of calcining compartment one end, and air outlet is positioned at the top of the calcining compartment the other end, and inlet mouth is connected with Cyclone outlet, and air outlet is connected with waste heat boiler.Calcining compartment is provided with charging opening 34, discharge port 23, decomposition gas outlet 12 and tapping channel 24.Charging opening is communicated with charging vehicle 33, and discharge port is connected with tapping channel 24.Tapping channel is provided with heat-eliminating medium entrance 25, and heat-eliminating medium entrance is connected with cooling medium circulation system.Be provided with air-circulating fan 20 in calcining compartment, air-circulating fan is connected with blower fan 19.Carbon dioxide treatment unit 35 is provided with decomposition gas treating plant, decomposition gas cooling apparatus Sum decomposition gas storage tank, and decomposition gas treating plant, decomposition gas cooling apparatus Sum decomposition gas storage tank connect successively.Decomposition gas outlet 12 is connected with decomposition gas treating plant.High-temperature flue gas outlet is connected with cyclonic separator.Cyclone outlet is divided into two-way, and partition calcining furnace of leading up to is connected to waste heat boiler, and bypass 38 of separately leading up to is directly connected to waste heat boiler 28, and two-way is respectively equipped with valve 11.The exhanst gas outlet 26 of waste heat boiler is connected with carbon dioxide extraction equipment 36.Carbon dioxide extraction equipment 36 is provided with carbon dioxide outlet and waste gas outlet, and carbon dioxide outlet is connected with carbon dioxide treatment unit, and waste gas outlet is connected with exhaust emission system.Generating set was connected controller switching equipment 31 and was connected with oxygen production unit circuit, and the oxygen outlet of oxygen production unit is connected with oxygen canister, and nitrogen outlet is connected with nitrogen pot pipeline.
Horizontal cylinder body structure can be selected in combustion chamber 5, and as shown in Figure 4, the burner 3 of horizontal cylinder body structure combustion chamber 5 is positioned at the side of combustion chamber, and high-temperature flue gas outlet 9 is positioned at the opposite side of combustion chamber.Secondary air entrance is positioned at the bottom of combustion chamber, and secondary air entrance radial direction is installed.Tertiary air entrance is positioned at the top of high-temperature gas outlet.
The operation scheme of the indirect heating roasting assembly of the utility model band generating set is; coal dust transfers out from Pulverized Coal Bin and carries air lift oil equipment extraction coal gas and coal tar; carry air lift oil carbon residue and load coke powder bin container loader 41, under the protection of nitrogen, be delivered to fuel inlet 1 through handling equipment 42.Combustion chamber sprays into coal dust by the fuel inlet of burner, and First air entrance enters oxygen-rich air, and the secondary air entered with tangential way carries out combustion-supporting burning along combustion chamber wall high speed rotating, makes coal dust firing efficiently abundant.Tertiary air entrance, as combustion air entrance for subsequent use, when the combustion air that First air entrance and secondary air entrance enter is not enough, enters supplementary combustion air from tertiary air entrance.The oxygen-rich air of First air, secondary air and tertiary air sets according to manufacturing technique requirent, and by regulating First air entrance, the valve 11 of secondary air entrance and tertiary air entrance oxygen pipeline and airline realizes to combustion air oxygen level control.The auxiliary fuel spout of secondary air ingress and tertiary air ingress sprays fuel as required, overheavy firing effect, improves flue-gas temperature.The slag produced in process of coal combustion exists in liquid form in burner hearth, and molten slag flow to the bottom slag bath of burner hearth along furnace wall, discharged by slag notch 7.Limestone material enters calcining compartment 21 through charging vehicle 33 and charging opening 34, and the high-temperature flue gas produced by combustion chamber 5 coal dust firing enters smoke chamber 16, by the material of heat conduction brick 22 partition heating and calcining room after cyclonic separator 10 dedusting.The inlet mouth 17 of flue gas through one end enters smoke chamber 16, releases heat, leave from the air outlet 15 of the other end through the upper and lower alternate bending flue 45 arranging firebreak 44.Utilize the top clean fuel nozzle 43 of smoke chamber to spray fuel combustion when flue-gas temperature does not reach calcining temperature, improve calcining temperature, clean fuel is Sweet natural gas, liquefied petroleum gas (LPG).The waste residue that residue in flue gas and clean fuel burning produce is provided with slag-drip opening 39 liquid state and discharges from bottom.Wingdale pyrolytic decomposition becomes lime and carbonic acid gas, and carbonic acid gas rises gradually, penetrates materials downward by the fans drive at top, produces the airflow circulation of carbonic acid gas at material burner hearth, increases the heating efficiency of partition kiln.Lime enters tapping channel 24 through discharge port 23, and heat-eliminating medium carbonic acid gas warp-heat-eliminating medium entrance 25 enters tapping channel cool lime, and cooled lime is come out of the stove.High temperature carbon dioxide after cool lime enters calcining compartment with decomposing and exports 12 through decomposition gas together with the carbonic acid gas that produces and process to carbon dioxide treatment unit 35, a carbonic acid gas part after process continues circulation and makes heat-eliminating medium, and a part is as secondary providing device.Another road of combustion chamber high temperature flue gas directly enters waste heat boiler 28 through connecting pipeline and steam occurs, and drives power generation, according to need of production, is regulated the flow of two-way flue gas by the valve 11 on connecting pipeline.Useless flue gas after waste heat boiler heat-obtaining extracts carbonic acid gas through exhanst gas outlet 26 to carbon dioxide extraction equipment 36, and the carbonic acid gas extracted, to carbon dioxide treatment unit, carries out processing, reclaiming together with the carbonic acid gas of calcining and decomposing.The waste gas extracting carbonic acid gas discharges to exhaust emission system through waste gas outlet.The electric power that generator sends is through controller switching equipment 31 part to oxygen production unit 32 low ternperature separation process oxygen, and the oxygen made stores to oxygen canister, and by-product nitrogen stores to nitrogen pot.The part of oxygen of oxygen canister is used for the oxygen sources of combustion chamber oxygen enrichment or pure oxygen burning.
Claims (12)
1. the indirect heating roasting assembly with generating set, comprises combustion chamber (5), cyclonic separator (10), partition calcining furnace (18), waste heat boiler (28) and generating set; Described generating set is provided with steam turbine (29) and generator (30), and steam turbine is connected with generator, it is characterized in that: described device is provided with oxygen production unit (32) and carbon dioxide extraction equipment (36); Described combustion chamber is provided with burner (3), secondary air entrance (4), high-temperature flue gas outlet (9), molten slag bath (6) and slag notch (7), and described burner is positioned at top or the sidepiece of combustion chamber, and burner is provided with First air entrance (2) and fuel inlet (1); Described secondary air entrance is positioned at the sidepiece of combustion chamber, and secondary air entrance is tangentially installed or radial installation, and high-temperature flue gas outlet and slag notch are positioned at the bottom of combustion chamber; Described waste heat boiler establishes steam coils (27) and exhanst gas outlet (26), and steam coils is connected with steam turbine; Described high-temperature flue gas outlet is connected to waste heat boiler by cyclonic separator and partition roasting assembly, the exhanst gas outlet of waste heat boiler and carbon dioxide extraction equipment connection; Described generator is connected with oxygen production unit circuit by controller switching equipment (31), and described oxygen production unit is connected with oxygen canister and nitrogen pot pipeline.
2. the indirect heating roasting assembly of band generating set according to claim 1, it is characterized in that: described partition calcining furnace (18) is provided with calcining compartment (21) and smoke chamber (16), calcining compartment setting alternate with smoke chamber, separates with heat conduction brick (22) between calcining compartment and smoke chamber; Described smoke chamber is provided with inlet mouth (17) and air outlet (15), and inlet mouth is connected with Cyclone outlet, and air outlet is connected with waste heat boiler; Described calcining compartment is provided with charging opening (34), discharge port (23), decomposition gas outlet (12) and tapping channel (24), and charging opening is communicated with charging vehicle (33), and discharge port is connected with tapping channel (24); Be provided with air-circulating fan (20) in calcining compartment, air-circulating fan is connected with blower fan (19).
3. the indirect heating roasting assembly of band generating set according to claim 2, is characterized in that: described smoke chamber (16) is provided with firebreak (44), the upper and lower alternate setting of firebreak, forms bending flue (45); The top of smoke chamber is provided with clean fuel nozzle (43), and bottom is provided with slag-drip opening (39); Described inlet mouth (17) is positioned at the bottom of calcining compartment one end, and air outlet (15) are positioned at the top of the calcining compartment the other end.
4. the indirect heating roasting assembly of band generating set according to claim 2, it is characterized in that: described device is provided with carbon dioxide treatment unit (35), described carbon dioxide treatment unit is provided with decomposition gas treating plant, decomposition gas cooling apparatus Sum decomposition gas storage tank, and decomposition gas treating plant, decomposition gas cooling apparatus Sum decomposition gas storage tank connect successively; Described decomposition gas outlet (12) is connected with decomposition gas treating plant.
5. the indirect heating roasting assembly of band generating set according to claim 2, it is characterized in that: described carbon dioxide extraction equipment (36) is provided with carbon dioxide outlet and waste gas outlet, carbon dioxide outlet is connected with carbon dioxide treatment unit, and waste gas outlet is connected with exhaust emission system.
6. the indirect heating roasting assembly of band generating set according to claim 2, is characterized in that: described tapping channel (24) is provided with heat-eliminating medium entrance (25), and described heat-eliminating medium entrance is connected with cooling medium circulation system; Cooling medium circulation system is connected with carbon dioxide extraction equipment (36).
7. the indirect heating roasting assembly of band generating set according to claim 1, is characterized in that: described combustion chamber (5) are vertical cylindrical structure or horizontal cylinder body structure; The burner (3) of described vertical cylindrical structure combustion chamber is positioned at the top of combustion chamber, and high-temperature flue gas outlet (9) is positioned at the bottom of combustion chamber; The burner of described horizontal cylinder body structure combustion chamber is positioned at the side of combustion chamber, and high-temperature flue gas outlet is positioned at the opposite side of combustion chamber.
8. the indirect heating roasting assembly of band generating set according to claim 7, it is characterized in that: described combustion chamber (5) are provided with tertiary air entrance (14), the tertiary air entrance of vertical cylindrical structure combustion chamber is positioned at the bottom of high-temperature flue gas outlet (9), and the tertiary air entrance of horizontal cylinder body structure combustion chamber is positioned at the top of high-temperature gas outlet.
9. the indirect heating roasting assembly of band generating set according to claim 8, it is characterized in that: described secondary air entrance (4) and/or tertiary air entrance (14) place are provided with assisted fuel nozzle (13), described assisted fuel nozzle is gas fuel nozzle, liquid fuel nozzle or solid fuel nozzle, and described auxiliary fuel is clean fuel.
10. the indirect heating roasting assembly of band generating set according to claim 8, is characterized in that: described First air entrance (2), secondary air entrance (4) are connected with gas blower (37) and oxygen canister respectively with tertiary air entrance (14).
The indirect heating roasting assembly of 11. band generating sets according to claim 1, is characterized in that: described cyclonic separator (10) exports the bypass (38) be provided with to waste heat boiler (28), and described bypass is provided with valve (11).
The indirect heating roasting assembly of 12. band generating sets according to claim 1, it is characterized in that: described device is provided with coal dust processing unit, coal dust processing unit comprises to be carried Jiao and carries oily equipment (40), coke powder bin container loader (41) and handling equipment (42), described Pulverized Coal Bin with carry Jiao and carry oily equipment connection, carry Jiao to carry oily equipment and be connected with coke powder bin container loader, coke powder bin container loader is connected with handling equipment, and handling equipment is connected to fuel inlet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424199.6U CN204058261U (en) | 2014-07-30 | 2014-07-30 | A kind of indirect heating roasting assembly with generating set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420424199.6U CN204058261U (en) | 2014-07-30 | 2014-07-30 | A kind of indirect heating roasting assembly with generating set |
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| CN204058261U true CN204058261U (en) | 2014-12-31 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129931A (en) * | 2014-07-30 | 2014-11-05 | 石家庄新华能源环保科技股份有限公司 | Indirect heating calcining device with generating equipment |
| CN111707698A (en) * | 2020-07-16 | 2020-09-25 | 西安交通大学 | An experimental device and test method for high temperature calcination reaction characteristics under the alternating heating mode of flow and temperature synergy |
| CN111811276A (en) * | 2020-07-16 | 2020-10-23 | 西安交通大学 | A high temperature cyclic alternating heating experimental system and method |
| CN117308591A (en) * | 2023-09-25 | 2023-12-29 | 中材建设有限公司 | Method and system for treating suspended calcined clay |
-
2014
- 2014-07-30 CN CN201420424199.6U patent/CN204058261U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129931A (en) * | 2014-07-30 | 2014-11-05 | 石家庄新华能源环保科技股份有限公司 | Indirect heating calcining device with generating equipment |
| CN111707698A (en) * | 2020-07-16 | 2020-09-25 | 西安交通大学 | An experimental device and test method for high temperature calcination reaction characteristics under the alternating heating mode of flow and temperature synergy |
| CN111811276A (en) * | 2020-07-16 | 2020-10-23 | 西安交通大学 | A high temperature cyclic alternating heating experimental system and method |
| CN117308591A (en) * | 2023-09-25 | 2023-12-29 | 中材建设有限公司 | Method and system for treating suspended calcined clay |
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