CN105776916A - Low-carbon-emission cement production device - Google Patents
Low-carbon-emission cement production device Download PDFInfo
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- CN105776916A CN105776916A CN201610138892.0A CN201610138892A CN105776916A CN 105776916 A CN105776916 A CN 105776916A CN 201610138892 A CN201610138892 A CN 201610138892A CN 105776916 A CN105776916 A CN 105776916A
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- rotary kiln
- carbon dioxide
- kiln
- cement
- partition
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/364—Avoiding environmental pollution during cement-manufacturing
- C04B7/367—Avoiding or minimising carbon dioxide emissions
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/432—Preheating without addition of fuel
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/47—Cooling ; Waste heat management
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/005—Systems for reclaiming waste heat including pyrolising the waste gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
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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
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/18—Carbon capture and storage [CCS]
Abstract
The invention relates to a low-carbon-emission cement production device which comprises a primary preheating rotary kiln, a carbon dioxide preheating rotary kiln, a partition rotary kiln, a mixing rotary kiln, a cement rotary kiln, discharging equipment, a carbon dioxide recycling unit, a waste heat power generation unit and a carbon dioxide pipe network. A feed bin is connected with the primary preheating rotary kiln, and the primary preheating rotary kiln is connected with the carbon dioxide preheating rotary kiln, an annular material chamber of the partition rotary kiln, the mixing rotary kiln and the cement rotary kiln sequentially. The cement rotary kiln is provided with a burner, and a kiln chamber of the cement rotary kiln is connected with the partition rotary kiln, the primary preheating rotary kiln and the waste heat power generation unit sequentially. A decomposed gas outlet of the partition rotary kiln is connected with the carbon dioxide preheating rotary kiln, the carbon dioxide preheating rotary kiln is connected with the carbon dioxide recycling unit, and the carbon dioxide recycling unit is connected with the carbon dioxide pipe network sequentially. Through the multistage rotary kilns, a cement raw material is preheated, mixed and calcined, carbon dioxide generated from limestone decomposition can be recycled, the emission amount of carbon dioxide generated in the cement production process is reduced, and the preservation of the natural environment is facilitated.
Description
Technical field
The invention belongs to chemical industry, building material production facility technical field, relate to a kind of rotary kiln, be specifically related to a kind of low-carbon emission cement production device.
Background technology
The chemical composition of Portland clinker is mainly made up of calcium oxide, silicon dioxide, aluminium sesquioxide and four kinds of oxides of iron sesquioxide.Their summation accounts for more than the 95% of Clinker Composition, and wherein, calcium oxide accounts for 62%～67%.At present, China is manufacture of cement and uses big country, and cement is a kind of highly energy-consuming high pollutive industries, the raw material of cement mostly is the materials such as limestone, silicon dioxide and clay, cement production process produces substantial amounts of dust and carbon dioxide, surrounding is caused serious pollution, is not only degrading the environment in town and country, also create Global Emissions of Greenhouse Gas excessive, change terrestrial climate.Along with the progress of expanding economy and society, cleaner production cement, the carbon emission amount reducing cement production process is extremely urgent.
Summary of the invention
It is an object of the invention to provide a kind of low-carbon emission cement production device, to reduce cement production process CO2 emissions, reclaim carbon dioxide; conservation of nature environment and people's security of the lives and property; make full use of waste heat, reduce cement production consumption, increase economic efficiency.
The technical scheme is that low-carbon emission cement production device, including batch mixing rotary kiln, cement rotary kiln, discharging equipment, carbon dioxide recovery unit, cogeneration unit and carbon dioxide pipe network.The kiln hood of cement rotary kiln is provided with burner, and cement rotary kiln is connected with discharging equipment by kiln head cover.Device is provided with primary preheating rotary kiln, carbon dioxide preheating rotary kiln, partition rotary kiln, feeding warehouse and adjuvant storehouse.Primary preheating rotary kiln is provided with smoke inlet, and carbon dioxide preheating rotary kiln is provided with high temperature carbon dioxide entrance, and partition rotary kiln is provided with high-temperature flue gas entry, and batch mixing rotary kiln charging aperture is received in adjuvant storehouse.Partition rotary kiln is made up of the kiln thorax at the annular materials Tang He center between internal ring and outer shroud.Feeding warehouse is connected with primary preheating rotary kiln by kiln hood, primary preheating rotary kiln preheats rotary kiln by discharging bin with carbon dioxide and is connected, carbon dioxide preheating rotary kiln is connected with annular materials thorax by reinforced ring, annular materials thorax is connected to batch mixing rotary kiln by discharging ring, and batch mixing rotary kiln is connected to cement rotary kiln.The kiln thorax of cement rotary kiln is connected to the high-temperature flue gas entry of partition rotary kiln by kiln hood, the kiln thorax of partition rotary kiln is connected to the smoke inlet of primary preheating rotary kiln by kiln hood, and the kiln thorax of primary preheating rotary kiln is connected to cogeneration unit by kiln hood.The reinforced decomposition gas that is equipped with exports, decomposition gas outlet is connected to the high temperature carbon dioxide entrance of carbon dioxide preheating rotary kiln, the kiln thorax of carbon dioxide preheating rotary kiln is connected to carbon dioxide recovery unit by kiln hood, and carbon dioxide recovery unit is connected to carbon dioxide pipe network.
Device is provided with silicon dioxide feeding chamber, and silicon dioxide feeding chamber is connected to the kiln thorax of partition rotary kiln by kiln hood, and kiln thorax is connected to batch mixing rotary kiln entrance by kiln head cover.Cogeneration unit (17) includes waste heat boiler, steam turbine and electromotor, and waste heat boiler is provided with steam pipe coil, and steam pipe coil is connected with steam turbine, and steam turbine is connected with generator coaxle.Carbon dioxide recovery unit is provided with purifying carbon dioxide equipment, carbon dioxide cooling device and carbon dioxide storage tank, and purifying carbon dioxide equipment, carbon dioxide cooling device and carbon dioxide storage tank are sequentially connected with.Partition rotary kiln is 1～10, and the kiln hood of partition rotary kiln is provided with auxiliary burning nozzle.Auxiliary burning nozzle is solid fuel burner, liquid fuel burner or gaseous fuel burner, and burner is solid fuel burner, liquid fuel burner or gaseous fuel burner.
Outer shroud and internal ring that partition rotary kiln is made up of coaxial mounted resistance to material are constituted, and are annular materials thorax between internal ring and outer shroud, and annular materials thorax is provided with resistance to material and supports, and interior Ring current distribution is kiln thorax.Resistance to material is metal material, refractory material, ceramic material or Heat Conduction Material, or the composite of above-mentioned material；Described refractory material be refractory brick or unsetting resistance to material cast form.The raw material entered in primary preheating rotary kiln is silicon oxide and Calx building stones, and after being preheated to about 700 DEG C in primary rotary kiln, material enters carbon dioxide preheating rotary kiln and is further heated to 1000 DEG C by high temperature carbon dioxide.It is then sent to partition rotary kiln and carries out partition heating and calcining, after the material after decomposing completely enters blender, enter cement kiln calcining added other adjuvant mix homogeneously by adjuvant storehouse after and become cement.The raw material entered in primary preheating rotary kiln is Calx building stones, after being preheated to about 700 DEG C in primary rotary kiln, Calx building stones enter carbon dioxide preheating rotary kiln and are further heated to 1000 DEG C by high temperature carbon dioxide, it is then sent to partition rotary kiln and carries out partition heating and calcining, after material after decomposing completely enters blender, enter cement kiln calcining added silicon oxide and other adjuvant mix homogeneously by adjuvant storehouse after and become cement.Material diameter is between 1 nanometer to 100 millimeter.Material runs forward at annular materials thorax.
Low-carbon emission cement production device of the present invention passes through multilevel rotary kiln; cement raw material is preheated, batch mixing and calcining, collect raw material and decompose the carbon dioxide produced for carbon dioxide pipe network, turn waste into wealth; reduce cement production process CO2 emissions, be conducive to conservation of nature environment.The flue gas of calcining generation and the carbon dioxide preheated cement raw materials of decomposition, discharge flue gas for cogeneration, take full advantage of the waste heat of manufacture of cement, advantageously reduce cement production consumption, improve Business Economic Benefit.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of low-carbon emission cement production device of the present invention；
Fig. 2 is the schematic flow sheet of another embodiment of the present invention；
Wherein: 1 feeding warehouse, 2 primary preheating rotary kilns, 3 smoke inlets, 4 discharging bins, 5 carbon dioxide preheating rotary kilns, 6 high temperature carbon dioxide entrances, 7 reinforced rings, 8 partition rotary kilns, 9 annular materials thoraxes, 10 discharging rings, 11 high-temperature flue gas entries, 12 adjuvant storehouses, 13 batch mixing rotary kilns, 14 cement rotary kilns, 15 burners, 16 carbon dioxide recovery unit, 17 cogeneration unit, 18 carbon dioxide pipe networks, 19 discharging equipments, 20 kiln thoraxes, 21 silicon dioxide feeding chambers, 22 kiln hoods, 23 kiln head covers, 24 auxiliary burning nozzles.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail.Scope is not limited to embodiment, and those skilled in the art make any change in the scope that claim limits and fall within the scope of protection of the invention.
Embodiment 1
Low-carbon emission cement production device of the present invention is as it is shown in figure 1, include primary preheating rotary kiln 2, carbon dioxide preheating rotary kiln 5, partition rotary kiln 8, batch mixing rotary kiln 13, cement rotary kiln 14, discharging equipment 19, feeding warehouse 1, adjuvant storehouse 12, carbon dioxide recovery unit 16, cogeneration unit 17 and carbon dioxide pipe network 18.Primary preheating rotary kiln is provided with smoke inlet 3, and carbon dioxide preheating rotary kiln is provided with high temperature carbon dioxide entrance 6, and partition rotary kiln is provided with high-temperature flue gas entry 11, and batch mixing rotary kiln charging aperture is received in adjuvant storehouse.The kiln hood of cement rotary kiln is provided with burner 15, and burner is solid fuel burner.Partition rotary kiln is made up of the kiln thorax 20 of the annular materials thorax 9 between internal ring and outer shroud and center.Feeding warehouse is connected with primary preheating rotary kiln by kiln hood, primary preheating rotary kiln preheats rotary kiln by discharging bin 4 with carbon dioxide and is connected, carbon dioxide preheating rotary kiln is connected with the annular materials thorax of partition rotary kiln by reinforced ring 7, annular materials thorax is connected to batch mixing rotary kiln by discharging ring 10, batch mixing rotary kiln is connected to cement rotary kiln, and cement rotary kiln is connected with discharging equipment by kiln head cover.The kiln thorax of cement rotary kiln is connected to the high-temperature flue gas entry of partition rotary kiln by kiln hood, the kiln thorax of partition rotary kiln is connected to the smoke inlet of primary preheating rotary kiln by kiln hood, and the kiln thorax of primary preheating rotary kiln is connected to cogeneration unit by kiln hood.The reinforced decomposition gas that is equipped with exports, decomposition gas outlet is connected to the high temperature carbon dioxide entrance of carbon dioxide preheating rotary kiln, the kiln thorax of carbon dioxide preheating rotary kiln is connected to carbon dioxide recovery unit by kiln hood, and carbon dioxide recovery unit is connected to carbon dioxide pipe network.Cogeneration unit 17 includes waste heat boiler, steam turbine and electromotor, and waste heat boiler is provided with steam pipe coil, and steam pipe coil is connected with steam turbine, and steam turbine is connected with generator coaxle.Carbon dioxide recovery unit 16 is provided with purifying carbon dioxide equipment, carbon dioxide cooling device and carbon dioxide storage tank, and purifying carbon dioxide equipment, carbon dioxide cooling device and carbon dioxide storage tank are sequentially connected with.
The running of low-carbon emission cement production device of the present invention is: silicon dioxide and Paris white in feeding warehouse 1 enter in primary preheating rotary kiln 2 by charge door, about useless smoke pre-heating to 700 DEG C, are preheated rotary kiln 5 subsequently into carbon dioxide in kiln.The kiln head cover of carbon dioxide preheating rotary kiln is provided with high temperature carbon dioxide entrance, and the carbon dioxide that the calcining of partition rotary kiln partition produces enters carbon dioxide preheating rotary kiln and continues pre-thermal silicon dioxide and Paris white to 700 ~ 1000 DEG C.The annular materials thorax of partition rotary kiln 8 sent into by the material completing preheating, carry out partition calcining, the carbon dioxide produced sends into carbon dioxide preheating preheating in rotary kiln silicon dioxide and Paris white, completing the feeding carbon dioxide recovery unit 16 of the carbon dioxide after preheating and recycle carbon dioxide, after process, clean carbon dioxide delivers to carbon dioxide pipe network 18.Partition rotary kiln completes the material of calcining and enters batch mixing rotary kiln 13 together with the aluminium oxide in adjuvant storehouse 12 and ferrum oxide etc., sends into cement burning kiln 14 and be sintered into cement after mix homogeneously.The high-temperature flue gas that cement burning kiln produces is sent into as partition heat source in partition rotary kiln 8, and the flue gas leaving partition rotary kiln is re-fed into the primary preheating direct preheating material of rotary kiln 2, discharge after the low-temperature flue gas feeding low-temperature cogeneration unit generating after preheating.The kiln hood of partition rotary kiln is provided with auxiliary burning nozzle.Auxiliary burning nozzle is solid fuel burner, liquid fuel burner or gaseous fuel burner, and burner is solid fuel burner, liquid fuel burner or gaseous fuel burner.
Implement 2
Another embodiment of the present invention is as in figure 2 it is shown, device is provided with silicon dioxide feeding chamber 21, and silicon dioxide feeding chamber is connected to the kiln thorax 20 of partition rotary kiln 8 by kiln hood, and the kiln thorax of partition rotary kiln is connected to batch mixing rotary kiln entrance by kiln head cover.Silicon dioxide is heated through the kiln thorax high-temperature flue gas of partition rotary kiln 8, after heating silicon dioxide with in adjuvant storehouse 12 aluminium oxide and ferrum oxide and partition rotary kiln annular materials thorax in Calx together with enter batch mixing rotary kiln and mix.The raw material entered in feeding warehouse 1 is agstone, and other structures and the method for operation are identical with embodiment 1.
Implement 3
The third embodiment of the present invention forms with the equipment in embodiment 1 and connected mode is identical, running is: the Paris white in feeding warehouse 1 enters in primary preheating rotary kiln 2 by charge door, about useless smoke pre-heating to 700 DEG C, rotary kiln 5 is preheated subsequently into carbon dioxide in kiln.The kiln head cover of carbon dioxide preheating rotary kiln is provided with high temperature carbon dioxide entrance, and the carbon dioxide that the calcining of partition rotary kiln partition produces enters carbon dioxide preheating rotary kiln and continues preheating Paris white to 700 ~ 1000 DEG C.The annular materials thorax of partition rotary kiln 8 sent into by the material completing preheating, carry out partition calcining, the carbon dioxide produced sends into carbon dioxide preheating preheating in rotary kiln Paris white, completing the feeding carbon dioxide recovery unit 16 of the carbon dioxide after preheating and recycle carbon dioxide, after process, clean carbon dioxide delivers to carbon dioxide pipe network 18.Partition rotary kiln completes the material of calcining and enters batch mixing rotary kiln 13 together with the silicon oxide in adjuvant storehouse 12, aluminium oxide and ferrum oxide etc., sends into cement burning kiln 14 and be sintered into cement after mix homogeneously, and all the other processes are identical with embodiment 1.
Claims (9)
1. a low-carbon emission cement production device, including batch mixing rotary kiln (13), cement rotary kiln (14), discharging equipment (19), carbon dioxide recovery unit (16), cogeneration unit (17) and carbon dioxide pipe network (18)；The kiln hood of described cement rotary kiln is provided with burner (15), and cement rotary kiln is connected with discharging equipment by kiln head cover；It is characterized in that: described device is provided with primary preheating rotary kiln (2), carbon dioxide preheating rotary kiln (5), partition rotary kiln (8) and feeding warehouse (1), adjuvant storehouse (12)；Described primary preheating rotary kiln is provided with smoke inlet (3), and described carbon dioxide preheating rotary kiln is provided with high temperature carbon dioxide entrance (6), and described partition rotary kiln is provided with high-temperature flue gas entry (11), and batch mixing rotary kiln charging aperture is received in described adjuvant storehouse；Described partition rotary kiln is made up of the kiln thorax (20) of the annular materials thorax (9) between internal ring and outer shroud and center；Described feeding warehouse is connected with primary preheating rotary kiln by kiln hood, primary preheating rotary kiln preheats rotary kiln by discharging bin (4) with carbon dioxide and is connected, carbon dioxide preheating rotary kiln is connected with the annular materials thorax of partition rotary kiln by reinforced ring (7), annular materials thorax is connected to batch mixing rotary kiln by discharging ring (10), and batch mixing rotary kiln is connected to cement rotary kiln；The kiln thorax of described cement rotary kiln is connected to the high-temperature flue gas entry of partition rotary kiln by kiln hood, the kiln thorax of partition rotary kiln is connected to the smoke inlet of primary preheating rotary kiln by kiln hood, and the kiln thorax of described primary preheating rotary kiln is connected to cogeneration unit by kiln hood；The described reinforced decomposition gas that is equipped with exports, the outlet of described decomposition gas is connected to the high temperature carbon dioxide entrance of carbon dioxide preheating rotary kiln, the kiln thorax of carbon dioxide preheating rotary kiln is connected to carbon dioxide recovery unit by kiln hood, and carbon dioxide recovery unit is connected to carbon dioxide pipe network；Described batch mixing rotary kiln, cement rotary kiln, partition rotary kiln, carbon dioxide preheating rotary kiln and primary preheating rotary kiln inclination angle are 0 ~ 50 °.
2. low-carbon emission cement production device according to claim 1, it is characterized in that: described device is provided with silicon dioxide feeding chamber (21), described silicon dioxide feeding chamber is connected to the kiln thorax (20) of partition rotary kiln (8) by kiln hood, and kiln thorax is connected to batch mixing rotary kiln entrance by kiln head cover.
3. low-carbon emission cement production device according to claim 1, it is characterized in that: described cogeneration unit (17) includes waste heat boiler, steam turbine and electromotor, waste heat boiler is provided with steam pipe coil, and steam pipe coil is connected with steam turbine, and steam turbine is connected with generator coaxle.
4. low-carbon emission cement production device according to claim 1, it is characterized in that: carbon dioxide recovery unit (16) is provided with purifying carbon dioxide equipment, carbon dioxide cooling device and carbon dioxide storage tank, and purifying carbon dioxide equipment, carbon dioxide cooling device and carbon dioxide storage tank are sequentially connected with.
5. low-carbon emission cement production device according to claim 1, is characterized in that: described partition rotary kiln (8) is 1～10, and the kiln hood of partition rotary kiln is provided with auxiliary burning nozzle (24)；Described auxiliary burning nozzle is solid fuel burner, liquid fuel burner or gaseous fuel burner, and described burner is solid fuel burner, liquid fuel burner or gaseous fuel burner；Described batch mixing rotary kiln (13) quantity is 1 ~ 10.
6. low-carbon emission cement production device according to claim 1, it is characterized in that: outer shroud and internal ring that described partition rotary kiln (8) is made up of coaxial mounted resistance to material are constituted, it it is annular materials thorax (9) between internal ring and outer shroud, annular materials thorax is provided with resistance to material and supports, and interior Ring current distribution is kiln thorax (20).
7. low-carbon emission cement production device according to claim 6, is characterized in that: described resistance to material is metal material, refractory material, ceramic material or Heat Conduction Material, or the composite of above-mentioned material；Described refractory material be refractory brick or unsetting resistance to material cast form.
8. low-carbon emission cement production device according to claim 1, it is characterized in that: the raw material entered in described primary preheating rotary kiln (2) is silicon oxide and Calx building stones, after being preheated to about 700 DEG C in primary rotary kiln, material enters carbon dioxide preheating rotary kiln and is further heated to 1000 DEG C by high temperature carbon dioxide, it is then sent to partition rotary kiln and carries out partition heating and calcining, after material after decomposing completely enters blender, enter cement kiln calcining after adding other adjuvant mix homogeneously by adjuvant storehouse (12) and become cement.
9. low-carbon emission cement production device according to claim 2, it is characterized in that: the raw material entered in described primary preheating rotary kiln (2) is Calx building stones, after being preheated to about 700 DEG C in primary rotary kiln, Calx building stones enter carbon dioxide preheating rotary kiln and are further heated to 1000 DEG C by high temperature carbon dioxide, it is then sent to partition rotary kiln and carries out partition heating and calcining, after material after decomposing completely enters blender, enter cement kiln calcining added silicon oxide and other adjuvant mix homogeneously by adjuvant storehouse (12) after and become cement.
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| CN201610138892.0A CN105776916B (en) | 2016-03-13 | 2016-03-13 | A kind of low-carbon emission cement production device |
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| CN201610138892.0A CN105776916B (en) | 2016-03-13 | 2016-03-13 | A kind of low-carbon emission cement production device |
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| CN105776916B CN105776916B (en) | 2018-02-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110746131A (en) * | 2019-11-29 | 2020-02-04 | 天津健威泽节能环保科技股份有限公司 | Method for trapping and purifying CO by using external combustion type rotary kiln in cement kiln2And emission reduction system and method |
| CN112984782A (en) * | 2021-02-05 | 2021-06-18 | 陕西翼飞航智能科技有限公司 | Based on CO2Carbonate ore production and CO production in plasma hot blast stove2Decomposed gas recovery system and method |
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| CN112984782A (en) * | 2021-02-05 | 2021-06-18 | 陕西翼飞航智能科技有限公司 | Based on CO2Carbonate ore production and CO production in plasma hot blast stove2Decomposed gas recovery system and method |
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