CN105000811B - Parallel flow heat accumulating type lime kiln production technology based on CO2 accumulation - Google Patents
Parallel flow heat accumulating type lime kiln production technology based on CO2 accumulation Download PDFInfo
- Publication number
- CN105000811B CN105000811B CN201510444135.1A CN201510444135A CN105000811B CN 105000811 B CN105000811 B CN 105000811B CN 201510444135 A CN201510444135 A CN 201510444135A CN 105000811 B CN105000811 B CN 105000811B
- Authority
- CN
- China
- Prior art keywords
- gas
- accumulating type
- heat accumulating
- kiln
- combustion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- 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
Landscapes
- Carbon And Carbon Compounds (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a parallel flow heat accumulating type lime kiln production technology based on CO2 accumulation. The parallel flow heat accumulating type lime kiln production technology includes the steps that limestone raw materials are fed into two kiln chambers of a parallel flow heat accumulating type lime kiln; carrier gas is sprayed into the kiln chambers; combustion supporting gas is fed; in a combustion zone of the current kiln chamber, limestone absorbs the heat generated by fuel combustion to be decomposed to generate quick lime and CO2 gas; the quick lime is discharged after being cooled to 80 DEG C to 100 DEG C; cooling gas, the CO2 gas generated by decomposing the limestone and CO2 gas generated by fuel combustion are mixed to enter the other kiln chamber to preheat limestone; flue gas generated by preheating releases heat to the limestone, then the temperature of the flue gas is reduced, the flue gas is exhausted, and CO2 gas with the volume concentration larger than 95% is generated; the parallel flow heat accumulating type lime kiln starts reversing work. By means of the parallel flow heat accumulating type lime kiln production technology, the high-purity CO2 gas is obtained while the high-quality lime is prepared. Compared with an existing technology, circulation of N2 in a system is avoided, the energy used for heating the N2 is saved, and the flue gas is recycled to achieve the aims of increasing the product added value, saving energy and reducing consumption.
Description
Technical field
The present invention relates to limekiln manufacturing technique method, it is based on co particularly to a kind of2The cocurrent heat accumulating type Calx of enrichment
Kiln manufacturing technique method.
Background technology
In metallurgical industry, substantial amounts of co can be produced when producing slag making materials quick lime2.In actual production, produce 1 ton of life
Calx just produces the co more than 1 ton2, and 1 ton of steel of melting about needs the quick lime of 70 kg.Chinese crude steel yield is about 8.2 within 2014
Hundred million tons, then about need 57,000,000 tons of quick lime, produce the co more than 60,000,000 tons2.It is used mostly limekiln next life generation stone at present
Ash, but co in the waste gas that ejects of limekiln2Content very low, if by co2Enrichment recycling, then also need to spend very
A part of greatly energy and fund, so most enterprises select directly to discharge, this has resulted in a very serious environmental problem.
Domestic cocurrent heat accumulating type limekiln produces and is used mostly compressed air pulverized coal conveying, combustion-supporting and product cooling at present,
Co in the flue gas producing2Concentration low (volumetric concentration 10 ~ 14%) and exhaust gas volumn is big.Due to separating low co after recovered flue gas2Content
Waste gas is relatively costly, so flue gas is directly discharged into air by most enterprise, causes serious atmospheric pollution and the wasting of resources.
Content of the invention
The problem existing for existing process method, the present invention provides one kind to be based on co2The cocurrent heat accumulating type Calx of enrichment
Kiln manufacturing technique method.
The technical scheme is that
One kind is based on co2The cocurrent heat accumulating type limekiln manufacturing technique method of enrichment, comprises the following steps:
(1) in first combustion period, by raw limestone, before kiln, building stones storehouse is delivered to scale hooper, raw limestone warp
Load after scale hooper weighing in truck and be transported to cocurrent heat accumulating type limekiln kiln crown, enter two kiln thoraxes in cocurrent heat accumulating type limekiln
Interior；
(2) Fuel lance in a kiln thorax in cocurrent heat accumulating type limekiln is inserted in limestone stock column, and carrier gas carries
Fuel is sprayed in kiln thorax by Fuel lance；
(3) pass through combustion fan to be fed combustion-supporting gas by cocurrent heat accumulating type limekiln kiln crown, in the draft of combustion fan
Lower combustion-supporting gas is flowed down to combustion zone and is met with fuel, so that fuel is burnt below the spout of Fuel lance；
(4) in the combustion zone of current kiln thorax, limestone absorb fuel combustion produce heat, decompose generate quick lime and
co2Gas；
(5) quick lime producing in the combustion zone of current kiln thorax is carried out being cooled to 80 by the cooling gas that cooling blower feeds
DEG C ~ 100 DEG C after discharging；
(6) rise to after cooling gas are heated by quick lime at interface channel, the co generating with decomposition of limestone2Gas and
The co that fuel combustion produces2Gas mixing enters another kiln thorax by interface channel and rises, and enters preheating zone through combustion zone
Limestone is preheated；
(7) after pre- thermogenetic flue gas rejects heat to limestone, temperature reduces and discharges, and by udst separation, produces
The co that volumetric concentration is more than 95%2Gas, this co2, as the carrier gas of conveying fuel, another part is as by cold for a part for gas
But blower fan feeds the cooling gas of cooling zone, and remaining directly stores or makes dry ice product；
(8) first burnout cycle complete, and in cocurrent heat accumulating type limekiln, various air-flows stop flowing, cocurrent heat accumulating type stone
Ash furnace starts commutation work, commutating period 40 s ~ 50s, and quick lime draws off from the kiln thorax bottom in cocurrent heat accumulating type limekiln.
The described combustion-supporting gas of step (3) be oxygen concentration > 95% oxygen-enriched.
The co that volumetric concentration described in described step (7) is more than 95%230% ~ 35% co in gas2Gas directly stores
Or make dry ice product.
The co that volumetric concentration described in described step (7) is more than 95%2In gas, 5% ~ 10% as the load conveying fuel
Gas.
The co that volumetric concentration described in described step (7) is more than 95%2In gas, 55% ~ 65% conduct is supplied by cooling blower
Enter the cooling gas of combustion zone.
Beneficial effect:
The invention provides being based on co2The cocurrent heat accumulating type limekiln manufacturing technique method of enrichment, this have enrichment co2
The cocurrent heat accumulating type limekiln manufacturing technique method of function also obtains highly purified co while preparing high-quality Calx2Gas
Body.Compared with existing process, eliminate n2Circulation in system, saves for heating n2Energy, and by flue gas
Recycle and improve added value of product and the target such as energy-saving to reach.
Brief description
Fig. 1 is to adopt in the embodiment of the present invention based on co2The cocurrent heat accumulating type limekiln system structure diagram of enrichment.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is elaborated.
Embodiment 1
It is based on co in the present embodiment2The cocurrent heat accumulating type limekiln system structure of enrichment is as shown in figure 1, employing in system
Dust arrester be sack cleaner, fuel be coal dust.Dust concentration≤the 50mg/nm of the flue gas discharged from air vent3.
Using above-mentioned cocurrent heat accumulating type Calx kiln system produce quick lime (cao), 450 tons of the quick lime daily output, daily 80
The individual production cycle, per production cycle coal dust amount 240 kg ~ 270kg, combustion air coefficient of excess 1.1 ~ 1.4.
Based on co2The cocurrent heat accumulating type limekiln manufacturing technique method of enrichment, comprises the following steps:
(1) in first combustion period, by raw limestone, before kiln, building stones storehouse is delivered to scale hooper, raw limestone warp
Load after scale hooper weighing in truck and be transported to cocurrent heat accumulating type limekiln kiln crown, enter two kiln thoraxes in cocurrent heat accumulating type limekiln
In (kiln thorax 1 and kiln thorax 2)；
Concrete feeding technique: limestone, by underground receiver bin, delivers to wide-angle belt through electric vibrating feeder, by wide-angle
Limestone is transported to the monolayer building stones sieve that shakes and is sieved by belt, and wherein rock screen removes and uses it for anything else to refuse bin, qualified Calx
Shi Ze passes through to shake and sieves by chute to intermediate belt, then by building stones storehouse before intermediate belt to kiln.The qualified limestone in the front storehouse of kiln, passes through
After scale hooper weighs before kiln, send into winch hoister hopper, limestone is delivered to by kiln crown building stones scale hooper by hoist engine, then by one
Limestone is sent into the revolving top being located on two kiln cylinders by platform bobbing machine and reversible belt machine, finally by distributing device by Calx
Stone sends into kiln.
(2) Fuel lance in a kiln thorax (kiln thorax 1) in cocurrent heat accumulating type limekiln is inserted in limestone stock column, carries
Airborne fuel is sprayed in kiln thorax by Fuel lance；
(3) by combustion fan using oxygen concentration > 95% oxygen-enriched as combustion-supporting gas by cocurrent heat accumulating type limekiln kiln crown
Feed, under the draft of combustion fan, combustion-supporting gas is flowed down to combustion zone and met with fuel, makes fuel in Fuel lance
Burn below spout；
(4) in the combustion zone of current kiln thorax (kiln thorax 1), limestone absorbs the heat that fuel combustion produces, and decomposes and generates life
Calx and co2Gas；
(5) quick lime producing in the combustion zone of current kiln thorax (kiln thorax 1) is carried out by the cooling gas that cooling blower feeds
Discharging after being cooled to 80 DEG C ~ 100 DEG C；
During kiln thorax 1 calcining, coal dust sprays in kiln thorax 1 by fuel nozzle, co2Combustion-supporting gas (carrier gas of conveying fuel) is from kiln crown
Spray into, the bottom of two kiln thoraxes is passed through co2Cooling gas (is fed the cooling gas of combustion zone) by cooling blower, co2Cooling gas is by temperature
Spend the high temperature cao for 1000 DEG C ~ 1150 DEG C and be cooled to 80 DEG C ~ 100 DEG C.
(6) rise to after cooling gas are heated by quick lime at interface channel, the co generating with decomposition of limestone2Gas and
The co that fuel combustion produces2Gas mixing enters another kiln thorax (kiln thorax 2) by interface channel and rises, and enters through combustion zone
Preheating zone preheats to limestone；
(7) after pre- thermogenetic flue gas rejects heat to limestone, temperature reduces and discharges, and by udst separation, produces
The co that volumetric concentration is more than 95%2Gas, this co2The 5% of gas is fed by cooling blower as the carrier gas of conveying fuel, 65% conduct
The cooling gas of cooling zone, remaining 30% direct stores or makes dry ice product；
(8) first burnout cycle complete, and in cocurrent heat accumulating type limekiln, various air-flows stop flowing, cocurrent heat accumulating type stone
Ash furnace starts commutation work, commutating period 45s, and quick lime draws off from the kiln thorax bottom in cocurrent heat accumulating type limekiln.
Commutation work: combustion air change-over valve changes position, combustion air release valve is opened, cooling air relief valve
Door is opened, and discharge shutter is opened.
Former day 450 tons of Calx the daily discharge in cocurrent heat accumulating type limekiln co2Measure as 385 ~ 415 tons, through side of the present invention
After method, the exhaust gas volumn of the recycling of the part of air inlet compressor is 231 ~ 270 tons, 164 ~ 184 tons of the exhaust gas volumn of storage,
Reduce fume emission, decrease environmental pollution.
Embodiment 2
It is based on co in the present embodiment2The cocurrent heat accumulating type limekiln system structure of enrichment is as shown in figure 1, employing in system
Dust arrester be sack cleaner, fuel be coal dust.Dust concentration≤the 50mg/nm of the flue gas discharged from air vent3.
Using above-mentioned cocurrent heat accumulating type Calx kiln system produce quick lime (cao), 500 tons of the quick lime daily output, daily 80
The individual production cycle, per production cycle coal dust amount 265kg ~ 300kg, combustion air coefficient of excess 1.1 ~ 1.4.
Based on co2The cocurrent heat accumulating type limekiln manufacturing technique method of enrichment, comprises the following steps:
(1) in first combustion period, by raw limestone, before kiln, building stones storehouse is delivered to scale hooper, raw limestone warp
Load after scale hooper weighing in truck and be transported to cocurrent heat accumulating type limekiln kiln crown, enter two kiln thoraxes in cocurrent heat accumulating type limekiln
In (kiln thorax 1 and kiln thorax 2)；
(2) Fuel lance in a kiln thorax (kiln thorax 1) in cocurrent heat accumulating type limekiln is inserted in limestone stock column, carries
Airborne fuel is sprayed in kiln thorax by Fuel lance；
(3) pass through combustion fan to be fed combustion-supporting gas by cocurrent heat accumulating type limekiln kiln crown, in the draft of combustion fan
Lower combustion-supporting gas is flowed down to combustion zone and is met with fuel, so that fuel is burnt below the spout of Fuel lance；Described combustion-supporting
Gas be oxygen concentration > 95% oxygen-enriched；
(4) in the combustion zone of current kiln thorax (kiln thorax 1), limestone absorbs the heat that fuel combustion produces, and decomposes and generates life
Calx and co2Gas；
(5) quick lime producing in the combustion zone of current kiln thorax (kiln thorax 1) is carried out by the cooling gas that cooling blower feeds
Discharging after being cooled to 80 DEG C ~ 100 DEG C；
During kiln thorax 1 calcining, coal dust sprays in kiln thorax 1 by fuel nozzle, co2Combustion-supporting gas (carrier gas of conveying fuel) is from kiln crown
Spray into, the bottom of two kiln thoraxes is passed through co2Cooling gas (is fed the cooling gas of combustion zone) by cooling blower, co2Cooling gas is by temperature
Spend the high temperature cao for 1000 DEG C ~ 1150 DEG C and be cooled to 80 DEG C ~ 100 DEG C.
(6) rise to after cooling gas are heated by quick lime at interface channel, the co generating with decomposition of limestone2Gas and
The co that fuel combustion produces2Gas mixing enters another kiln thorax (kiln thorax 2) by interface channel and rises, and enters through combustion zone
Preheating zone preheats to limestone；
(7) after pre- thermogenetic flue gas rejects heat to limestone, temperature reduces and discharges, and by udst separation, produces
The co that volumetric concentration is more than 95%2Gas, this co2The 10% of gas is supplied by cooling blower as the carrier gas of conveying fuel, 55% conduct
Enter the cooling gas of cooling zone, remaining 35% direct stores or make dry ice product；
(8) first burnout cycle complete, and in cocurrent heat accumulating type limekiln, various air-flows stop flowing, cocurrent heat accumulating type stone
Ash furnace starts commutation work, commutating period 50s, and quick lime draws off from the kiln thorax bottom in cocurrent heat accumulating type limekiln.
Commutation work: combustion air change-over valve changes position, combustion air release valve is opened, cooling air relief valve
Door is opened, and discharge shutter is opened.
Former day 500 tons of Calx the daily discharge in cocurrent heat accumulating type limekiln co2Measure as 425 ~ 460 tons, through side of the present invention
After method, the exhaust gas volumn of the recycling of the part of air inlet compressor is 255 ~ 276 tons, 170 ~ 184 tons of the exhaust gas volumn of storage,
Reduce fume emission, decrease environmental pollution.
Embodiment 3
It is based on co in the present embodiment2The cocurrent heat accumulating type limekiln system structure of enrichment is as shown in figure 1, employing in system
Dust arrester be sack cleaner, fuel be coal dust.Dust concentration≤the 50mg/nm of the flue gas discharged from air vent3.
Using above-mentioned cocurrent heat accumulating type Calx kiln system produce quick lime (cao), 550 tons of the quick lime daily output, daily 80
The individual production cycle, per production cycle coal dust amount 290 kg ~ 330kg, combustion air coefficient of excess 1.1 ~ 1.4.
Based on co2The cocurrent heat accumulating type limekiln manufacturing technique method of enrichment, comprises the following steps:
(1) in first combustion period, by raw limestone, before kiln, building stones storehouse is delivered to scale hooper, raw limestone warp
Load after scale hooper weighing in truck and be transported to cocurrent heat accumulating type limekiln kiln crown, enter two kiln thoraxes in cocurrent heat accumulating type limekiln
In (kiln thorax 1 and kiln thorax 2)；
(2) Fuel lance in a kiln thorax (kiln thorax 1) in cocurrent heat accumulating type limekiln is inserted in limestone stock column, carries
Airborne fuel is sprayed in kiln thorax by Fuel lance；
(3) pass through combustion fan to be fed combustion-supporting gas by cocurrent heat accumulating type limekiln kiln crown, in the draft of combustion fan
Lower combustion-supporting gas is flowed down to combustion zone and is met with fuel, so that fuel is burnt below the spout of Fuel lance；Described combustion-supporting
Gas be oxygen concentration > 95% oxygen-enriched；
(4) in the combustion zone of current kiln thorax (kiln thorax 1), limestone absorbs the heat that fuel combustion produces, and decomposes and generates life
Calx and co2Gas；
(5) quick lime producing in the combustion zone of current kiln thorax (kiln thorax 1) is carried out by the cooling gas that cooling blower feeds
Discharging after being cooled to 80 DEG C ~ 100 DEG C；
During kiln thorax 1 calcining, coal dust sprays in kiln thorax 1 by fuel nozzle, co2Combustion-supporting gas (carrier gas of conveying fuel) is from kiln crown
Spray into, the bottom of two kiln thoraxes is passed through co2Cooling gas (is fed the cooling gas of combustion zone) by cooling blower, co2Cooling gas is by temperature
Spend the high temperature cao for 1000 DEG C ~ 1150 DEG C and be cooled to 80 DEG C ~ 100 DEG C.
(6) rise to after cooling gas are heated by quick lime at interface channel, the co generating with decomposition of limestone2Gas and
The co that fuel combustion produces2Gas mixing enters another kiln thorax (kiln thorax 2) by interface channel and rises, and enters through combustion zone
Preheating zone preheats to limestone；
(7) after pre- thermogenetic flue gas rejects heat to limestone, temperature reduces and discharges, and by udst separation, produces
The co that volumetric concentration is more than 95%2Gas, this co2The 8% of gas is fed by cooling blower as the carrier gas of conveying fuel, 60% conduct
The cooling gas of cooling zone, remaining 32% direct stores or makes dry ice product；
(8) first burnout cycle complete, and in cocurrent heat accumulating type limekiln, various air-flows stop flowing, cocurrent heat accumulating type stone
Ash furnace starts commutation work, commutating period 40 s, and quick lime draws off from the kiln thorax bottom in cocurrent heat accumulating type limekiln.
Commutation work: combustion air change-over valve changes position, combustion air release valve is opened, cooling air relief valve
Door is opened, and discharge shutter is opened.
Former day 450 tons of Calx the daily discharge in cocurrent heat accumulating type limekiln co2Measure as 470 ~ 510 tons, through side of the present invention
After method, the exhaust gas volumn of the recycling of the part of air inlet compressor is 282 ~ 306 tons, 188 ~ 204 tons of the exhaust gas volumn of storage,
Reduce fume emission, decrease environmental pollution.
Claims (5)
1. one kind is based on co2The cocurrent heat accumulating type limekiln manufacturing technique method of enrichment is it is characterised in that comprise the following steps:
(1) in first combustion period, by raw limestone, before kiln, building stones storehouse is delivered to scale hooper, and raw limestone is through weighing
Load after bucket weighing in truck and be transported to cocurrent heat accumulating type limekiln kiln crown, enter in two kiln thoraxes in cocurrent heat accumulating type limekiln；
(2) Fuel lance in a kiln thorax in cocurrent heat accumulating type limekiln is inserted in limestone stock column, and carrier gas carries fuel
Sprayed in kiln thorax by Fuel lance；
(3) pass through combustion fan to be fed combustion-supporting gas by cocurrent heat accumulating type limekiln kiln crown, help under the draft of combustion fan
Combustion gas body is flowed down to combustion zone and is met with fuel, so that fuel is burnt below the spout of Fuel lance；
(4) in the combustion zone of current kiln thorax, limestone absorbs the heat that fuel combustion produces, and decomposes and generates quick lime and co2Gas
Body；
(5) quick lime producing in the combustion zone of current kiln thorax by the cooling gas that cooling blower feeds carry out being cooled to 80 DEG C ~
Discharging after 100 DEG C；
(6) rise to after cooling gas are heated by quick lime at interface channel, the co generating with decomposition of limestone2Gas and fuel
The co that burning produces2Gas mixing enters another kiln thorax by interface channel and rises, and enters preheating zone to stone through combustion zone
Lime stone is preheated；
(7) after pre- thermogenetic flue gas rejects heat to limestone, temperature reduces and discharges, and by udst separation, produces volume
The co that concentration is more than 95%2Gas, this co2, as the carrier gas of conveying fuel, another part is as by cooling wind for a part for gas
Machine feeds the cooling gas of cooling zone, and remaining directly stores or makes dry ice product；
(8) first burnout cycle complete, and in cocurrent heat accumulating type limekiln, various air-flows stop flowing, cocurrent heat accumulating type limekiln
Start commutation work, commutating period 40 s ~ 50s, quick lime draws off from the kiln thorax bottom in cocurrent heat accumulating type limekiln.
2. according to claim 1 based on co2Enrichment cocurrent heat accumulating type limekiln manufacturing technique method it is characterised in that
The described combustion-supporting gas of step (3) be oxygen concentration > 95% oxygen-enriched.
3. according to claim 1 based on co2Enrichment cocurrent heat accumulating type limekiln manufacturing technique method it is characterised in that
The co that volumetric concentration described in described step (7) is more than 95%230% ~ 35% co in gas2Gas directly stores or makes dry
Ice product.
4. according to claim 1 or 3 based on co2The cocurrent heat accumulating type limekiln manufacturing technique method of enrichment, its feature exists
In the co that the volumetric concentration described in described step (7) is more than 95%2In gas, 5% ~ 10% as the carrier gas conveying fuel.
5. according to claim 1 or 3 based on co2The cocurrent heat accumulating type limekiln manufacturing technique method of enrichment, its feature exists
In the co that the volumetric concentration described in described step (7) is more than 95%2In gas, 55% ~ 65% feeds cooling as by cooling blower
The cooling gas of band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510444135.1A CN105000811B (en) | 2015-07-24 | 2015-07-24 | Parallel flow heat accumulating type lime kiln production technology based on CO2 accumulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510444135.1A CN105000811B (en) | 2015-07-24 | 2015-07-24 | Parallel flow heat accumulating type lime kiln production technology based on CO2 accumulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105000811A CN105000811A (en) | 2015-10-28 |
| CN105000811B true CN105000811B (en) | 2017-01-18 |
Family
ID=54373730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510444135.1A Active CN105000811B (en) | 2015-07-24 | 2015-07-24 | Parallel flow heat accumulating type lime kiln production technology based on CO2 accumulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105000811B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016104076A1 (en) * | 2016-03-07 | 2017-09-07 | Maerz Ofenbau Ag | Plant with a furnace and method of operating such a plant |
| CN107755971B (en) * | 2016-08-18 | 2019-11-26 | 上海宝冶建设工业炉工程技术有限公司 | The nonstandard ash discharge system production method of double-hearth lime kiln |
| CN106892578B (en) * | 2017-04-17 | 2019-09-13 | 王长春 | A kind of full recycling CO2Lime kiln device |
| CN106989590B (en) * | 2017-04-20 | 2022-12-02 | 中钢集团鞍山热能研究院有限公司 | Double-ring-chamber alternate heat supply self-dust-filtering intelligent calcining device and calcining method |
| CN108006688A (en) * | 2017-11-13 | 2018-05-08 | 遵义市贵科科技有限公司 | A kind of flue heat sink |
| CN108314336A (en) * | 2018-05-09 | 2018-07-24 | 王长春 | A kind of lime kiln device using circulating air |
| CN108504814B (en) * | 2018-05-09 | 2019-08-02 | 东北大学 | A kind of gas-based shaft kiln directly reduced iron cooling system |
| WO2022111817A1 (en) | 2020-11-27 | 2022-06-02 | S.A. Lhoist Recherche Et Developpement | Method for calcining mineral rock in a parallel-flow regenerative kiln, and kiln used |
| CA3183046A1 (en) | 2020-07-03 | 2022-01-06 | Ziad Habib | Method for calcining mineral rock in a regenerative parallel-flow vertical shaft furnace and furnace used |
| CN112919468A (en) * | 2021-03-10 | 2021-06-08 | 广西大学 | Method for recovering carbon dioxide by calcining limestone with oxygen-enriched combustion-supporting effect |
| AU2022274151A1 (en) | 2021-05-11 | 2023-11-02 | Tecforlime | Decarbonation process of carbonated materials in a multi-shaft vertical kiln |
| WO2022238384A1 (en) | 2021-05-11 | 2022-11-17 | Tecforlime | Decarbonation process of carbonated materials in a multi-shaft vertical kiln |
| CA3218534A1 (en) | 2021-05-11 | 2022-11-17 | Tecforlime | Decarbonation process of carbonated materials in a multi-shaft vertical kiln |
| CN116477854A (en) * | 2023-05-16 | 2023-07-25 | 中冶长天国际工程有限责任公司 | Lime kiln equipment based on carbon emission reduction and control method thereof |
| CN116628576B (en) * | 2023-07-26 | 2023-10-13 | 中南大学 | Intelligent production yield monitoring method for heat carrier lime kiln |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649627A (en) * | 2012-06-08 | 2012-08-29 | 河北联合大学 | Method for preparing active lime by calcining limestone |
| CN102786236B (en) * | 2012-08-17 | 2014-05-07 | 西安瑞驰节能工程有限责任公司 | Device and method for capturing carbon dioxide in lime production process |
| CN104176757B (en) * | 2014-08-08 | 2016-05-04 | 石棉县亿欣钙业有限责任公司 | Precipitated calcium carbonate suspension calcining technique |
-
2015
- 2015-07-24 CN CN201510444135.1A patent/CN105000811B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105000811A (en) | 2015-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105000811B (en) | Parallel flow heat accumulating type lime kiln production technology based on CO2 accumulation | |
| CN102951640A (en) | Calcium carbide producing device | |
| CN102230040A (en) | Ironmaking method | |
| CN108164161B (en) | High-activity magnesium oxide suspension state calcination system and magnesium oxide preparation method | |
| CN110683850A (en) | Production process of gangue ceramsite | |
| CN106482530B (en) | It is a kind of to be sintered mining multipot type heat recovering device and sensible heat recovery method | |
| CN107091569A (en) | Rotary kiln and the polygenerations systeme that metal hydride is produced using the rotary kiln | |
| CN113387605B (en) | Method for preparing lightweight aggregate by low-temperature self-heating sintering of multiple kinds of coal gangue | |
| CN103542724A (en) | Blasting belt-type sintering machine and method, for producing sinter, of blasting belt-type sintering machine | |
| CN101870561B (en) | Large automatic shaft lime kiln | |
| CN211813457U (en) | System for catching and purifying carbon dioxide in cement clinker production line | |
| CN103205584B (en) | Production device and production method of manganese monoxide mineral powder | |
| CN111850291A (en) | Pretreatment method of sintered solid fuel and preparation method of sintered mixture | |
| CN108779960A (en) | Agglomerating plant and sintering method | |
| CN109320062A (en) | A kind of method of manganese alloy liquid state waste slag hot charging production granulated wool | |
| CN87102197A (en) | The novel process of fechnology for direct conversion of blast furnace melting slag into cement clinker | |
| CN203095880U (en) | Equipment for producing cement and trapping CO2 by using airtight annular calcining furnace | |
| CN206680388U (en) | Double-deck spray burning type stone flour, stone lime burning tunnel cave | |
| CN108264252B (en) | Green box-type positive pressure fly ash sintered ceramsite production line | |
| CN104724954A (en) | Method for preparing active lime by utilizing yellow phosphorus tail gas | |
| CN1037192C (en) | Method for transport of sponge iron | |
| CN219991458U (en) | Ceramic tile powder production system | |
| CN2652943Y (en) | Energy saving type iron-making pellet roasting vertical furnace | |
| JPH01147023A (en) | Manufacture of sintered ore | |
| CN220364487U (en) | Active lime production system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |