CN103043930A - Method and equipment for producing cement and gathering CO2 by utilizing closed ring-shaped calcination furnace - Google Patents

Method and equipment for producing cement and gathering CO2 by utilizing closed ring-shaped calcination furnace Download PDF

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CN103043930A
CN103043930A CN2012105520840A CN201210552084A CN103043930A CN 103043930 A CN103043930 A CN 103043930A CN 2012105520840 A CN2012105520840 A CN 2012105520840A CN 201210552084 A CN201210552084 A CN 201210552084A CN 103043930 A CN103043930 A CN 103043930A
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cement
raw
blended
furnace
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CN2012105520840A
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CN103043930B (en
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白玉龙
王昀睿
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西安瑞驰节能工程有限责任公司
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y02P40/121Energy efficiency measures, e.g. improving or optimising the production methods
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y02P40/18Carbon capture and storage [CCS]

Abstract

The invention discloses a method and equipment for producing cement and gathering CO2 by utilizing a closed ring-shaped calcination furnace. The equipment comprises a raw material crusher, a material screening machine, a material homogenizing cabin, a material flour mill, a material metering device and a closed ring-shaped calcination furnace which are connected with one another sequentially, wherein the closed ring-shaped calcination furnace is connected with a CO2 gathering mechanism and a grate cooler respectively; the grate cooler is connected with a clinker storage warehouse and a clinker metering device respectively; the clinker metering device and a blending material preparing mechanism are connected with a cement grinding mill respectively; and the cement grinding mill is connected with a cement storage warehouse. The method comprises the following steps: raw material preprocessing, raw material preparing, clinker calcinating, discharging, carbon gathering, mixed material preparing and cement manufacturing process. The equipment provided by the invention has a compact structure, low investment intensity and a low operation cost, and is easy to maintain. The technological conditions for realizing the production of cement and the gathering of CO2 are mature, and the procedures are simple, so that CO2 generated in the cement producing process can be gathered effectively.

Description

A kind ofly utilize airtight annular calcining furnace to produce cement and capture CO 2Method and apparatus
Technical field
The present invention relates to a kind of method and apparatus of producing cement, especially relate to a kind of method and apparatus that utilizes airtight annular calcining furnace production cement and realize collecting carbonic anhydride.
Background technology
Cement, the powdery inorganic coagulation material, being that a kind of can the sclerosis in water can harden in air again and can be widely used in for a long time the engineerings such as civil construction, water conservancy, national defence to the materials such as sand, stone cementing material of construction together securely, is the basic raw material of national economy.Cement is typical resource and energy consumption type product, its production process mainly comprises raw material preparation, clinker burning, 3 stages of cement production systD, needing to consume a large amount of resource and the energy such as Wingdale raw material, coal and electric power, is to discharge carbonic acid gas (CO in the industrial sector 2) the rich and influential family.
Compare Cement industry CO with other industry departments such as electric power, iron and steel 2A distinguishing feature of discharging is that it not only comprises the CO that fuel combustion produces 2With the electric power of each technological process indirect consumption, comprise that also calcium carbonate and magnesiumcarbonate decompose the CO that produces in the Wingdale 2According to statistics, the CO that is caused by Cement industry 2It is CO that discharging accounts for global people 28% of quantity discharged.CO 2One of the main component that causes the greenhouse gases of global warming, to the contribution rate of greenhouse up to 55%, because CO 2The climate change that the isothermal chamber gaseous emission causes has become the focal issue that the whole world is paid close attention to.For this reason, Cement industry also is subject to the special concern of Intergovernmental Panel on Climate Change (IPCC), and China's National Climate Change Program also explicitly pointed out the major fields that Cement industry is China's reply climate change in 2007.On the other hand, CO 2Be again a kind of multiduty industrial raw materials, the sector application such as, beverage fresh-keeping in food-processing, chemical fertilizer, fire prevention, oil production is extensive.At present, China is the country of cement output maximum in the world, accounts for about 60% of whole world cement output, and according to statistics, China's Cement industry year in 2011 was produced 20.6 hundred million tons of cement, if by 0.7 ton of CO of average cement discharging per ton 2Meter produces about 1,400,000,000 tons of CO 2To the CO that produces in the cement production process 2Capture, both can reduce the discharging of a large amount of greenhouse gases, again the recyclable CO that economic worth is arranged 2Product has the wide prospect that promotes the use.
Studies show that, in the existing cement production process, the CO that carbonate decomposition, fuel combustion and power consumption are discharged 2Account for respectively 59%, 32% and 6% of total release.For reducing the CO of cement industry 2Discharging, realize the Sustainable development of cement industry, each R﹠D institution, enterprise also in practice also emphasis from above three aspects, propose and adopted many reduction of discharging measures targetedly, comprising: use alternative materials (as with part replacing carbide slag with lime stone) and alternative fuel (as replacing coal with waste secondary fuel), add blended material with reduce clinker dosage, improve thermal effect and electricity is imitated, to kiln tail CO 2Capture recovery etc.Above measure is for control Cement industry CO 2Discharging has certain effect, but the reduction of discharging space is still limited, Cement industry CO 2The problem that quantity discharged is large still is not resolved, and reason comprises the following aspects: (1) in view of the requirement to Cement Quality and fuel value, the alternative add-on of various alternative materials, fuel and blended material is all unsuitable excessive; (2) for selected production technique and equipment, the increase rate of thermal effect and electricity effect is lower; (3) to kiln tail CO 2It is high to capture cost recovery.Therefore, must continue to seek new production technique, develop the carbon emission reduction work that new production unit advances Cement industry.
Based on production and the research situation of present cement, also do not have a kind ofly can conscientiously solve Cement industry CO 2The production technique of the too high problem of quantity discharged.Be not difficult to find that in the cement production process, carbonate decomposition and fuel combustion are CO in the clinker burning process 2The main reason that quantity discharged is huge, but because in existing technique, the clinker burning process is the open type environment, the CO that carbonate decomposition is produced 2Waste gas and airborne N that fuel combustion produces have been sneaked into 2Composition is so that the CO that the kiln tail is discharged 2Concentration is lower, only is about 15%, and this gives follow-up CO 2Separation and Recovery bring huge difficulty, cost is higher.Given this, seek and a kind ofly in airtight annular calcining furnace, carry out, and realize kiln tail high concentration CO 2Capture the technique that reclaims, must provide possibility for realizing that domestic and international cement industry Sustainable development and carbon capture, also will produce good economic benefit and environmental benefit.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of equipment and technique of utilizing airtight annular calcining furnace production cement and realizing collecting carbonic anhydride.This compact equipment, investment intensity is little, running cost is low, be easy to safeguard to have good industrial applications prospect; Utilize this equipment realization manufacture of cement and capture CO 2Processing condition ripe, step is simple, can efficiently capture the CO that produces in the cement production process 2
To achieve the above object of the invention, technical scheme provided by the invention is:
Providing a kind of utilizes airtight annular calcining furnace to produce cement and capture CO 2Equipment, comprise Wingdale and correction material raw materials such as (such as iron ores) are carried out broken raw material crushing machine and the material screening machine that the raw material after the fragmentation is sieved, sieve apparatus links to each other with the material homogenizer storehouse that different material is mixed in proportion reach the production requirement chemical ingredients by travelling belt, the material homogenizer storehouse links to each other with the raw material powder grinding machine, described raw material powder grinding machine connects the raw material measuring apparatus by charging belt, and described raw material measuring apparatus links to each other with airtight annular calcining furnace; Described airtight annular calcining furnace respectively with CO 2Capturing mechanism and grate-cooler links to each other; Described grate-cooler is connected with the grog storage warehouse, and the grog storage warehouse links to each other with the grog measuring apparatus, and grog measuring apparatus and the blended material mechanism that gets the raw materials ready links to each other with the feed end of cement grinding mill respectively, and the discharge end of cement grinding mill links to each other with the cement storage warehouse.
Preferably, described CO 2Capture mechanism and comprise the water cooler that links to each other with airtight annular calcining furnace, water cooler is connected with dedusting and purifying device, after dedusting and purifying device connects compressor, condenser by pipeline successively, with CO 2Storage tank links to each other.
Preferably, the described blended material mechanism that gets the raw materials ready comprises blended material crusher, the blended material sieve apparatus that links to each other with the blended material crusher, described blended material sieve apparatus links to each other with the blended material storage warehouse, described blended material storage warehouse links to each other with the blended material measuring apparatus, and described blended material measuring apparatus links to each other with the cement grinding mill feed end by charging belt.
Preferably, described airtight annular calcining furnace comprises the furnace chamber that the furnace bottom by outer shroud furnace wall, interior ring oven wall, furnace roof and rotation consists of, be furnished with a plurality of radiant heating devices in the described furnace chamber, be provided with partition wall between described outer shroud furnace wall and the interior ring oven wall, the annular chamber between outer shroud furnace wall and the interior ring oven wall is isolated into preheating zone I, heating zone II and high-temperature calcination district III; The initiating terminal of described preheating zone is provided with the closed-type feed device, and the tail end of described high-temperature calcination district III is respectively equipped with airtight drawing mechanism and CO 2Relief outlet; Described closed-type feed device and the outlet of raw material measuring apparatus connect; Described airtight drawing mechanism and grate-cooler connect; Described CO 2Relief outlet links to each other with water cooler by pipeline.
Preferably, the heating tube in the described radiant heating device is the heat accumulating type radiation heating tube.
Preferably, described water cooler is connected with cooling tower, and described cooling tower links to each other with described water cooler thermal medium entrance and recovering medium entrance respectively.
Correspondingly, the present invention also provides a kind of and utilizes airtight annular calcining furnace to produce cement and capture CO 2Technique, comprise the steps:
1) raw materials pretreatment: will qualified Wingdale, sieve after proofreading and correct the appropriate fragmentation such as material, the minus mesh of release mesh is delivered to homogenizing bin, the ratio between each raw material should satisfy the requirement of manufacture of cement chemical reaction;
2) raw material preparation: the compound that reaches the stove requirement forms the raw material of production requirement behind intergrinding;
3) raw material that reach production requirement of clinker burning: with step 2) getting ready are in the closed-type feed device is distributed into airtight annular calcining furnace, and each composition in the furnace charge rotates with furnace bottom after entering in the stove, successively through preheating zone I, heating zone II, high-temperature calcination district III.In airtight annular calcining furnace, produce amount of heat in the radiation formula heating tube, and via radiator tube with heat radiation to stove, make furnace chamber Nei Ge district temperature reach the production requirement of burning clinker of cement.Furnace high-temperature makes material generation chemistry and the physical reaction of adding, and raw material are sintered to grog;
4) discharging: grog is delivered to grate-cooler via airtight drawing mechanism and cools off;
5) carbon captures: the high concentration CO of raw material calcining for generating in the grog process 2Gas is through CO 2Relief outlet enters water cooler, and is delivered to dedusting and purifying device and carries out purifying treatment, the high concentration CO after purifying 2After compressed, the condensation operation, obtain liquid CO 2Seal up for safekeeping in CO 2In the storage tank;
6) blended material preparation: will sieve after the fragmentation of blended material appropriateness, the minus mesh of release mesh is delivered to the blended material storage warehouse;
7) cement production systD: be cement with grog grinding after the blended material composition mixes, the ratio between the material should satisfy the performance requriements of prepared cement.Final cement products homogenizing, be stored in the cement silo, be assigned to then that packaging station generates sack cement or can car (bulk cement) transports.
Preferably, in described technique, described correction material is for providing Fe 2O 3, Al 2O 3And SiO 2Deng the material of composition, be one or more mixing of iron ore, alumina, shale, clay or sand.
Preferably, in described technique, to be blast-furnace slag, flyash, quartz sand, Wingdale, clay, slow cooling slag or other mix without one or more of the industrial residue of chemical reaction with cement blended material.
Preferably, in described technique, described raw material (Wingdale, correction material) and the granularity of blended material after fragmentation are 5-15cm.
Preferably, in described technique, the temperature of described airtight annular calcining furnace preheating zone I is 800-1000 ℃, and raw material are 1-5min in the residence time of preheating zone I; The temperature of described heating zone II is 1000-1250 ℃, and raw material are 2-10min in the residence time of heating zone II; The temperature of described high-temperature calcination district III is 1250-1450 ℃, and raw material are 3-15min in the residence time of high-temperature calcination district III.
Preferably, in described technique, high concentration CO 2In water cooler by obtain after the heat-eliminating medium heat exchange cooling, cooled CO 2Temperature is 50-100 ℃.
Technology and equipment provided by the invention has following beneficial effect:
1, with respect to existing method, method provided by the invention adopts under the condition of complete secluding air raw material is calcined, the CO that produces in the stove 2Do not sneak into other gaseous constituents, more than purity 99% reaches, be conducive to CO 2Later use and processing.
2, technical process is simple, CO 2The capture cost is low, and is little to the corrosion of system, save energy;
3, adopt heat accumulating type to add heat radiation tube and farthest kept the heat that combustion gas produces, funnel temperature is low, does not need to arrange pre-heat recovery system, has saved cost of investment;
4, fuel does not enter in the stove in the radiator tube internal combustion, can control well furnace atmosphere, and radiator tube quantity and position are conducive to improve the homogeneity of temperature distribution in the burner hearth, is conducive to calcination reaction and carries out, and calcination efficiency is high, and calcination time is short;
5, cooling system closed circulation, the heat-eliminating medium recycle reduces operation and maintenance cost greatly.
Description of drawings
Fig. 1 a kind ofly in the embodiment of the invention utilizes airtight annular calcining furnace to produce cement and realizes CO 2The equipment flowsheet that captures;
Fig. 2 is airtight annular calcining furnace vertical view in the embodiment of the invention;
Fig. 3 is the process flow sheet of the embodiment of the invention.
Among the figure: 1, raw material crushing machine; 2, material screening machine; 3, material homogenizer storehouse; 4, raw material powder grinding machine; 5, raw material measuring apparatus; 6, airtight annular calcining furnace; 6a, closed-type feed device; 6b, airtight drawing mechanism; 6c, CO 2Relief outlet; 6d, radiant heating device; 7, water cooler; 8, dedusting and purifying device; 9, compressor; 10, condenser; 11, CO 2Storage tank; 12, cooling tower; 13, grate-cooler; 14, grog storage warehouse; 15, grog measuring apparatus; 16, blended material crusher; 17, blended material sieve apparatus; 18, blended material storage warehouse; 19, blended material measuring apparatus; 20, cement grinding mill; 21, cement storage warehouse; 22, outer shroud furnace wall; 23, interior ring oven wall; 24, furnace roof; 25, furnace bottom.
I, preheating zone; II, heating zone; III, high-temperature calcination district.
Embodiment
Below in conjunction with drawings and Examples to production cement provided by the invention and realize CO 2The equipment that captures and utilize this device fabrication cement and capture CO 2Technique make a detailed description.
Figure 1 shows that and a kind ofly utilize airtight annular calcining furnace to produce cement and capture CO 2Equipment, comprise Wingdale and proofread and correct that material raw materials such as (such as iron ores) carries out broken raw material crushing machine 1, the material screening machine 2 that the raw material after the fragmentation is sieved and the material homogenizer storehouse 3 that different material is mixed in proportion to reach the production requirement chemical ingredients, material homogenizer storehouse 3 links to each other with raw material powder grinding machine 4, raw material powder grinding machine 4 connects raw material measuring apparatus 5 by charging belt, and raw material measuring apparatus 5 links to each other with airtight annular calcining furnace 6; Airtight annular calcining furnace 6 respectively with, include CO 2The CO of water cooler 7 2Capturing mechanism links to each other with grate-cooler 13; Grate-cooler 13 is connected with grog storage warehouse 14, and grog storage warehouse 14 links to each other with grog measuring apparatus 15, and grog measuring apparatus 15 and the blended material mechanism that gets the raw materials ready links to each other with the feed end of cement grinding mill 20 respectively, and the discharge end of cement grinding mill 20 links to each other with cement storage warehouse 21.
Wherein, include CO 2The CO of water cooler 7 2Capturing in the mechanism has the water cooler 7 that links to each other with airtight annular calcining furnace 6, and water cooler 7 is connected with dedusting and purifying device 8, after dedusting and purifying device 8 connects compressor 9, condenser 10 by pipeline successively, with CO 2Storage tank 11 links to each other.
The blended material mechanism that gets the raw materials ready comprises blended material sieve apparatus 17 to blended material (gypsum, other mineral material etc.) carries out broken blended material crusher 16, the blended material with after the fragmentation that links to each other with blended material crusher 16 sieves, blended material sieve apparatus 17 links to each other with blended material storage warehouse 18, blended material storage warehouse 18 links to each other with blended material measuring apparatus 19, and blended material measuring apparatus 19 links to each other with cement grinding mill 20 feed ends by charging belt.
As shown in Figure 2, airtight annular calcining furnace 6 comprises the furnace chamber that is made of outer shroud furnace wall 22, interior ring oven wall 23, furnace roof 24 and the furnace bottom 25 that rotates, furnace bottom 25 can rotate, and is furnished with a plurality of radiant heating device 6d in the furnace chamber, is divided into preheating zone I, heating zone II, high-temperature calcination district III in the furnace chamber; The initiating terminal of preheating zone I is provided with closed-type feed device 6a, and the tail end of high-temperature calcination district III is respectively equipped with airtight drawing mechanism 6b and CO 2Relief outlet 6c; Closed-type feed device 6a and raw material measuring apparatus 5 connect; Airtight drawing mechanism 6b and grate-cooler 13 connect; CO 2Relief outlet 6c links to each other with water cooler 7 by pipeline.CO 2Water cooler 7 is connected with dedusting and purifying device 8, after dedusting and purifying device 8 connects compressor 9, condenser 10 by pipeline successively, with CO 2Storage tank 11 links to each other.
In specific embodiment, CO 2Water cooler 7 is connected with cooling tower 12, and cooling tower 12 links to each other with water cooler 7 hot water inlets and recovery cooling water inlet respectively.
In specific embodiment, grate-cooler 13 is connected with grog storage warehouse 14, grog storage warehouse 14 links to each other with grog measuring apparatus 15, and grog measuring apparatus 15 links to each other by the feed end of charging belt with cement grinding mill 20, and the discharge end of cement grinding mill 20 links to each other with cement storage warehouse 21.
In specific embodiment, the heating tube among the described radiant heating device 6d is the heat accumulating type radiation heating tube.
As shown in Figure 3, the cement production process flow process that aforesaid device is corresponding is as follows:
1) raw materials pretreatment: through screening qualified Wingdale, correction material etc. after raw material crushing machine 1 appropriate particle size after cracking is 5-15cm, sieve via material screening machine 2, the minus mesh of release mesh is delivered to material homogenizer storehouse 3, and the ratio between each raw material should satisfy the requirement of manufacture of cement chemical reaction;
Above-mentioned correction material is for providing Fe 2O 3, Al 2O 3And SiO 2Deng the material of composition, be one or more mixtures of iron ore, alumina, shale, clay or sand;
2) raw material preparation: the compound that will reach the stove requirement forms the raw material of production requirement behind raw material powder grinding machine 4 intergrindings;
3) raw material that clinker burning: with step 2) reach production requirement rotate with furnace bottom 25 after each composition in the raw material enters in the stove, successively through preheating zone I, heating zone II, high-temperature calcination district III in closed-type feed device 6a is distributed into airtight annular calcining furnace 6.In airtight annular calcining furnace 6, radiation heating tube among the radiation formula heating unit 6d produces amount of heat, and via radiation heating tube with heat radiation to stove, make furnace chamber Nei Ge district temperature reach the production requirement of burning clinker of cement.Furnace high-temperature makes material generation chemistry and the physical reaction of adding, and raw material are sintered to grog.The temperature of airtight annular calcining furnace preheating zone I is 800-1000 ℃, and material is 1-5min in the residence time of preheating zone I; The temperature of heating zone II is 1000-1250 ℃, and material is 2-10min in the residence time of heating zone II; The temperature of high-temperature calcination district III is 1250-1450 ℃, and material is 3-15min in the residence time of high-temperature calcination district III;
4) discharging: grog is delivered to grate-cooler 13 via airtight drawing mechanism 6b and cools off;
5) carbon captures: the high concentration CO of raw material calcining for generating in the grog process 2Gas is through CO 2Relief outlet 6c enters water cooler 7, and is delivered to dedusting and purifying device 8 and carries out purifying treatment, the high concentration CO after purifying 2After the effect of compressed machine 9, condenser 10, obtain liquid CO 2Seal up for safekeeping in CO 2In the storage tank 11;
6) blended material preparation: with blended material (for blast-furnace slag, flyash, quartz sand, Wingdale, clay, slow cooling slag or other and cement mix without one or more of the industrial residue of chemical reaction) after the 16 appropriate fragmentations of blended material crusher (particle size after cracking is 5-15cm), sieve through the blended material sieve apparatus again, the minus mesh of release mesh is delivered to blended material storage warehouse 18;
7) cement production systD: with after the blended material composition mixes according to the mass ratio that satisfies manufacture of cement, be cement through cement grinding mill 20 together grinding with grog.Final cement products homogenizing, be stored in the cement storage warehouse 21, be assigned to then that packaging station generates sack cement or can car (bulk cement) transports.
Above content is the further description of the present invention being done in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the protection domain that the present invention is determined by claims of submitting to.

Claims (10)

1. one kind is utilized airtight annular calcining furnace to produce cement and capture CO 2Equipment, comprise Wingdale and correction material are carried out broken raw material crushing machine (1) and the material screening machine (2) that the raw material after the fragmentation is sieved, it is characterized in that, described sieve apparatus (2) links to each other with material homogenizer storehouse (3) by travelling belt, material homogenizer storehouse (3) links to each other with raw material powder grinding machine (4), described raw material powder grinding machine (4) connects raw material measuring apparatus (5) by charging belt, described raw material measuring apparatus (5) links to each other with airtight annular calcining furnace (6), described airtight annular calcining furnace (6) respectively with CO 2Capturing mechanism and grate-cooler (13) links to each other; Described grate-cooler (13) is connected with grog storage warehouse (14), grog storage warehouse (14) links to each other with grog measuring apparatus (15), grog measuring apparatus (15) and the blended material mechanism that gets the raw materials ready links to each other with the feed end of cement grinding mill (20) respectively, and the discharge end of cement grinding mill (20) links to each other with cement storage warehouse (21).
2. according to claim 1ly a kind ofly utilize airtight annular calcining furnace to produce cement and capture CO 2Equipment, it is characterized in that described CO 2Capture mechanism and comprise the water cooler (7) that links to each other with airtight annular calcining furnace (6), water cooler (7) is connected with dedusting and purifying device (8), after dedusting and purifying device (8) connects compressor (9), condenser (10) by pipeline successively, with CO 2Storage tank (11) links to each other.
3. according to claim 1ly a kind ofly utilize airtight annular calcining furnace to produce cement and capture CO 2Equipment, it is characterized in that, the described blended material mechanism that gets the raw materials ready comprises blended material crusher (16), the blended material sieve apparatus (17) that links to each other with blended material crusher (16), described blended material sieve apparatus (17) links to each other with blended material storage warehouse (18), described blended material storage warehouse (18) links to each other with blended material measuring apparatus (19), and described blended material measuring apparatus (19) links to each other with cement grinding mill (20) feed end by charging belt.
4. according to claim 1ly a kind ofly utilize airtight annular calcining furnace to produce cement and capture CO 2Equipment, it is characterized in that, described airtight annular calcining furnace (6) comprises the furnace chamber by furnace bottom (25) formation of outer shroud furnace wall (22), interior ring oven wall (23), furnace roof (24) and rotation, be furnished with a plurality of radiant heating devices (6d) in the described furnace chamber, be provided with partition wall between described outer shroud furnace wall (22) and the interior ring oven wall (23), the annular chamber between outer shroud furnace wall (22) and the interior ring oven wall (23) is isolated into preheating zone I, heating zone II and high-temperature calcination district III; The initiating terminal of described preheating zone I is provided with closed-type feed device (6a), and the tail end of described high-temperature calcination district III is respectively equipped with airtight drawing mechanism (6b) and CO 2Relief outlet (6c); Described closed-type feed device (6a) connects with raw material measuring apparatus (5) outlet; Described airtight drawing mechanism (6b) connects with grate-cooler (13); Described CO 2Relief outlet (6c) links to each other with water cooler (7) by pipeline.
5. according to claim 4ly a kind ofly utilize airtight annular calcining furnace to produce cement and capture CO 2Equipment, it is characterized in that heating tube is taked the heat accumulating type radiation heating tube in the described radiant heating device (6d).
6. according to claim 1ly utilize airtight annular calcining furnace to produce cement and realize the equipment of collecting carbonic anhydride, it is characterized in that, described water cooler (7) is connected with cooling tower (12), and described cooling tower (12) links to each other with described water cooler thermal medium entrance and recovering medium entrance respectively.
7. one kind is utilized airtight annular calcining furnace to produce cement and capture CO 2Technique, it is characterized in that, comprise the steps:
1) raw materials pretreatment: will qualified Wingdale, sieve after proofreading and correct the material fragmentation, according to the mass ratio that satisfies manufacture of cement the minus mesh of release mesh is delivered to material homogenizer storehouse (3);
2) raw material preparation: the compound that will satisfy the stove requirement forms the raw material of production requirement behind intergrinding;
3) raw material of clinker burning: with step 2) getting ready are in closed-type feed device (6a) is distributed into airtight annular calcining furnace (6), each composition in the furnace charge rotates with furnace bottom after entering in the stove, through preheating zone I, heating zone II and high-temperature calcination district III, raw material are sintered to grog successively;
4) discharging: grog is delivered to grate-cooler (13) via airtight drawing mechanism (6b) and cools off;
5) carbon captures: the high concentration CO of raw material calcining for generating in the grog process 2Gas is through CO 2Relief outlet enters water cooler (7), and is delivered to dedusting and purifying device (8) and carries out purifying treatment, the high concentration CO after purifying 2After compressed, the condensation operation, obtain liquid CO 2Seal up for safekeeping in CO 2In the storage tank (11);
6) blended material preparation: will sieve after the blended material fragmentation, the minus mesh of release mesh is delivered to blended material storage warehouse (18);
7) cement production systD: be cement with grog grinding after the blended material composition mixes according to the mass ratio that satisfies manufacture of cement.
8. according to claim 7ly a kind ofly utilize airtight annular calcining furnace to produce cement and capture CO 2Technique, it is characterized in that one or more mixing that described correction material is iron ore, alumina, shale, clay or sand; To be blast-furnace slag, flyash, quartz sand, Wingdale, clay, slow cooling slag or other mix without one or more of the industrial residue of chemical reaction with cement described blended material.
9. according to claim 7ly a kind ofly utilize airtight annular calcining furnace to produce cement and capture CO 2Technique, it is characterized in that, described Wingdale, proofread and correct material and the granularity of blended material after fragmentation is 5-15cm.
10. according to claim 7ly a kind ofly utilize airtight annular calcining furnace to produce cement and capture CO 2Technique, it is characterized in that the temperature of described airtight annular calcining furnace preheating zone I is 800-1000 ℃, raw material are 1-5min in the residence time of preheating zone I; The temperature of described heating zone II is 1000-1250 ℃, and raw material are 2-10min in the residence time of heating zone II; The temperature of described high-temperature calcination district III is 1250-1450 ℃, and raw material are 3-15min in the residence time of high-temperature calcination district III.
CN201210552084.0A 2012-12-19 2012-12-19 Method and equipment for producing cement and gathering CO2 by utilizing closed ring-shaped calcination furnace CN103043930B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106595308A (en) * 2016-12-12 2017-04-26 北京建邦伟业机械制造有限公司 Sintering system and method
CN107187902A (en) * 2017-06-30 2017-09-22 广西贺州市科隆粉体有限公司 A kind of powdered whiting material homogenizer method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101474516A (en) * 2008-12-24 2009-07-08 天津渤海化工有限责任公司天津碱厂 Cloth bag recovery method of lime burner powder precipitator
CN101857383A (en) * 2010-06-28 2010-10-13 贾会平 Beam limekiln
CN203095880U (en) * 2012-12-19 2013-07-31 西安瑞驰节能工程有限责任公司 Equipment for producing cement and trapping CO2 by using airtight annular calcining furnace

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101474516A (en) * 2008-12-24 2009-07-08 天津渤海化工有限责任公司天津碱厂 Cloth bag recovery method of lime burner powder precipitator
CN101857383A (en) * 2010-06-28 2010-10-13 贾会平 Beam limekiln
CN203095880U (en) * 2012-12-19 2013-07-31 西安瑞驰节能工程有限责任公司 Equipment for producing cement and trapping CO2 by using airtight annular calcining furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106595308A (en) * 2016-12-12 2017-04-26 北京建邦伟业机械制造有限公司 Sintering system and method
CN107187902A (en) * 2017-06-30 2017-09-22 广西贺州市科隆粉体有限公司 A kind of powdered whiting material homogenizer method

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