CN106673463B - A kind of active lime production method - Google Patents
A kind of active lime production method Download PDFInfo
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- CN106673463B CN106673463B CN201611236721.8A CN201611236721A CN106673463B CN 106673463 B CN106673463 B CN 106673463B CN 201611236721 A CN201611236721 A CN 201611236721A CN 106673463 B CN106673463 B CN 106673463B
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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
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
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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
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
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- Ceramic Engineering (AREA)
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- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention discloses a kind of active lime production methods, belong to lime preparation field.Including pretreatment, the pre-heat treatment, limestone powder in feed bin is sequentially sent to preheater, the first decompression storehouse and the second decompression storehouse, limestone powder surface and internal temperature is heated to 850 ± 10 DEG C and is sent into the first decompression storehouse by the preheater, and the first decompression storehouse, which is filled up after limestone powder, closes and preheater interface channel and carry out being evacuated to 1E0~1E2pa；Limestone powder is all sent into the second decompression storehouse by the first decompression storehouse after the completion of vacuumizing operation；Second decompression storehouse, which is closed, depressurizes warehouse channel with first and carries out being evacuated to 1E-1~1E-2pa；Calcination processing, cooling treatment finally obtain the lime that activity degree is higher than 360ml.The present invention by realizing continuous calcining in a vacuum, and calcination temperature is lower than usual calcination temperature, solves the relationship between activity of lime and decomposition of limestone speed.
Description
Technical field
The present invention relates to lime preparation field, especially a kind of active lime production method.
Background technique
The distinguishing features such as active lime has large specific surface area, bulk density is small, the porosity is high, crystal grain is tiny.It will be active
Lime is applied in steelmaking process, can make that slag making slugging becomes faster, the duration of heat shortens, and desulfurization dephosphorization effect also can be more preferable.
Production practices prove: being made steel using active lime, dephosphorization rate and desulfurization degree are respectively increased 10%~60%, and lime consumption reduces by 10%
~35%, calcirm-fluoride consumption reduces by 30%, and the quantity of slag reduces 10%~12%, and duration of blast shortens 10%.And traditional handicraft calcined limestone
When, the grain size intervals of lime stone are larger, in calcination process, since the rate of heat transfer of lime is much smaller than the rate of heat transfer of lime stone,
After the lkd layer increasingly thickness of outer layer, cause the rate of heat transfer of inner layer limestone particle can be slower and slower, calcination time
It is longer, and long-time high temperature can make limestone surfaces burning " porcelain ", and then the CO2 gas generated in calcining is made to be difficult to arrange
Out, decarburization is incomplete, forms raw burn.Not only waste of energy, but also influence the quality of low-carbon active lime.
In the prior art, there are contradictions for the activity degree of lime and decomposition of limestone speed: calcination temperature is high, decomposition of limestone
Speed is fast, but activity of lime is low or even burning and loses activity；And calcination temperature is low, and although activity of lime is high, lime
Stone decomposition rate is slow, and calcination time is long；And calcination temperature is low, it is also possible to cause raw burn, can equally reduce the activity degree of lime.
And the activity of lime that existing most process obtains is generally less than 360ml, and usually forges at a temperature of 950-1150 DEG C
It burns, energy consumption is big, is easy to happen burning.
Summary of the invention
Goal of the invention of the invention is, in view of the above-mentioned problems, a kind of active lime production method is provided, by vacuum
Middle realization continuous calcining, and calcination temperature is lower than usual calcination temperature, solve activity of lime and decomposition of limestone speed it
Between relationship, the activity degree of 360ml or more can be obtained under less energy consumption.
In order to achieve the above objectives, the technical scheme adopted by the invention is that:
A kind of active lime production method, comprising the following steps:
Pretreatment will collect lime stone raw ore successively by broken, and cleaning desilts, classification handle to obtain granule size be
Limestone powder is sent into feed bin storage by the limestone powder of 40-50mm；
Limestone powder in feed bin is sequentially sent to preheater, the first decompression storehouse and the second decompression storehouse, institute by the pre-heat treatment
It states preheater limestone powder surface and internal temperature is heated to 850 ± 10 DEG C and is sent into the first decompression storehouse, the first decompression storehouse
It fills up after limestone powder and closes and preheater interface channel and carry out being evacuated to 1E0~1E2Pa；It is taking out very in the first decompression storehouse
Limestone powder is all sent into the second decompression storehouse after the completion of idle job；Second decompression storehouse is closed goes forward side by side with the first decompression warehouse channel
Row is evacuated to 1E-1~1E-2Pa；
Limestone powder is sent into and is carried out with the rotary kiln of the second decompression storehouse equipressure by calcination processing, the second decompression storehouse
Calcination processing obtains high-temperature lime, and calcination temperature is 850-950 DEG C, calcination time 90-130min；
High-temperature lime is sequentially sent to third decompression storehouse, the 4th decompression storehouse and cooling chamber, institute by cooling treatment, the rotary kiln
It states rotary kiln and high-temperature lime is sent into the third decompression storehouse isobaric with it, third decompression storehouse is closed after filling up high-temperature lime and revolution
Kiln channel, and high-temperature lime is sent into the 4th decompression storehouse；4th decompression storehouse is closed after filling up high-temperature lime and third decompression storehouse is logical
Road, and high-temperature lime is sent into cooling chamber and carries out cold front heavy rain.
By the second decompression of the first valve connection storehouse, kiln hood passes through the second valve connection for kiln tail in the rotary kiln
Three decompression storehouses；Rotary kiln is equipped with heating device and vacuum evacuation device, and the heating device includes burner, the burner edge
The setting of rotary kiln central axis；It is evenly equipped with multiple for connecting the burner noz(zle)s of fuel-device in burner, burner is close to the
Two decompression storehouse one end connections are located at the air blower outside rotary kiln, and burner is connected to preheater close to third decompression storehouse one end；It is described
Vacuum evacuation device includes check valve, exhaust pipe and vacuum pump, and the exhaust pipe is arranged in rotary kiln, and exhaust pipe is located at turn around kiln
Above central axis and with rotary kiln centerline axis parallel；The check valve is uniformly arranged on exhaust pipe and check valve is by outside extremely
Interior conducting, the vacuum pump are located at turn around outside kiln and are connected to exhaust pipe；The outlet side of the vacuum pump is connected to preheater.
The conveying of raw limestone to rotary kiln is realized by multi-step pressure reduction storehouse in above scheme, it is more its role is to pass through
Grade decompression is adjusted, and raw limestone is sent into during rotary kiln to the influence reduced to rotary kiln, being maintained at its long-time needs
Under the vacuum state wanted, to realize continuous production.In the prior art, it is calcined in a vacuum although also having, it is more
Being to maintain segment section is vacuum state, such as kiln hood；Or change vacuum be it is fixed, feed intake require to open calcining again every time
Stove；The unnecessary energy is not only expended in this way, and is intermittent production, and continuous production is not present, can only be suitble to small
The generation demand of batch.Simultaneously it will be appreciated that its volume of the rotary kiln of large size is very huge, vacuumizes and extremely consume energy, because
And need to save the energy loss of each step.
Preferably, the preheater is connected with emission-control equipment.Setting emission-control equipment can be effectively reduced to big
It discharges pollutants between gas, it is possible to reduce to the pressure of environment.
Preferably, the rotary kiln is followed successively by shell, outer heat insulation layer, intermediate interlayer, inner thermal insulating layer and inner casing from outside to inside,
The burner is connected to intermediate interlayer close to third decompression storehouse one end, and intermediate interlayer temperature is arranged at 800-850 DEG C, and pressure is
3E5-6E5Pa；The intermediate interlayer of the rotary kiln is connected to preheater close to second decompression storehouse one end.It is generated here with burning
Flue gas carries out reheating to rotary kiln, it is ensured that the temperature of rotary kiln is uniform, so that decomposition of limestone is uniform, and reduces combustion
The loss of material.
Preferably, it is described first decompression position in storehouse in second decompression storehouse right above and between setting connection valve, described second
It depressurizes storehouse and is greater than the first decompression storehouse, a quarter of the connection valve diameter not less than the first decompression storehouse diameter.This
Sample setting enables to the limestone powder in the first decompression storehouse to rapidly enter the second decompression storehouse, and the second decompression storage capacity is more
It can be convenient the limestone powder that the first decompression of receiving storehouse is fallen greatly, while reserved certain space avoids stone to operation is vacuumized
Lime stone powder blocks pipeline, affecting parameters adjustment.
Preferably, third decompression position in storehouse right above the 4th decompression storehouse and between setting connection valve, the described 4th
It depressurizes storehouse and is greater than third decompression storehouse, a quarter of the connection valve diameter not less than the 4th decompression storehouse diameter.This
Sample setting enables to the limestone powder in third decompression storehouse to rapidly enter the 4th decompression storehouse, and the 4th decompression storage capacity is more
It can be convenient the limestone powder that receiving third decompression storehouse is fallen greatly；It reduces third decompression storehouse and vacuumizes operation.
Preferably, second decompression orlop portion is equipped with the spiral feeder towards rotary kiln, and spiral feeder is just
To the first valve.Material straight line conveying can be carried out by spiral feeder, while can reduce and optimize structure setting.
Preferably, the third decompression position in storehouse is below the kiln hood of rotary kiln.High-temperature lime in this way in rotary kiln can be with
It falls directly into third decompression storehouse, it is convenient and efficient, reduce unnecessary transport device.
Preferably, the first decompression storehouse and the second decompression storehouse successively include shell, outer heat insulation layer, centre from outside to inside
Interlayer and inner casing；The intermediate interlayer of the rotary kiln successively passes through the middle interval in the second decompression storehouse close to second decompression storehouse one end
Layer, first decompression storehouse intermediate interlayer after be connected to preheater.Limestone powder after preheating is by the first decompression storehouse and second
Decompression can have the case where temperature decline behind storehouse, and the due effect of preheating is not achieved, and flue gas is discharged to first by burner
Decompression storehouse and the second decompression storehouse are heated, and can form high temperature insulation layer on the first decompression storehouse and the second decompression storehouse, maximum
It is reduced in degree or makes the limestone powder after preheating that heat be not present behind the first decompression storehouse and the second decompression storehouse
The problem of loss.The preheating that burner discharge flue gas can be made full use of simultaneously, reduces thermal losses.
Preferably, the upper end in first decompression storehouse, the second decompression storehouse and third decompression storehouse is mounted on for vacuumizing
Vacuum pump.
Due to the adoption of the above technical scheme, the invention has the following advantages:
1. the present invention allows rotary kiln continuous under 1E-1~1E-2Pa vacuum environment by the way that multi-step pressure reduction storehouse is arranged
Unbroken production, low with calcination temperature, fuel is burned low, obtains the high feature of activity of lime.Wherein, Activity of Lime
Degree is in 360ml or more.
Detailed description of the invention
Fig. 1 is illustrative view of functional configuration of the present invention.
In attached drawing, 1- feed bin, 2- preheater, 3- first depressurize storehouse, 4- second depressurizes storehouse, 5- rotary kiln, the decompression of 6- third
Storehouse, 7- the 4th depressurize storehouse.
Specific embodiment
It is further illustrated below in conjunction with specific implementation of the attached drawing to invention.
As shown in Figure 1, a kind of active lime production method, comprising the following steps:
Pretreatment will collect lime stone raw ore successively by broken, and cleaning desilts, classification handle to obtain granule size be
The limestone powder of 45mm stores limestone powder feeding feed bin 1.
Limestone powder in feed bin 1 is sequentially sent to preheater 2, first and depressurizes storehouse 3 and the second decompression storehouse by the pre-heat treatment
4, limestone powder surface and internal temperature is heated to 850 DEG C and is sent into the first decompression storehouse 3, the first decompression by the preheater 2
Storehouse 3, which is filled up after limestone powder, closes and 2 interface channel of preheater and carries out being evacuated to 1E2Pa.Preheater 2 is connected with exhaust gas
Processing unit.Limestone powder is all sent into the second decompression storehouse 4 by the first decompression storehouse 3 after the completion of vacuumizing operation.Second subtracts
Pressure storehouse 4, which is closed, depressurizes 3 channel of storehouse with first and carries out being evacuated to 1E-2pa.
First decompression storehouse 3 be located at right above the second decompression storehouse 4 and between setting connection valve, the second decompression storehouse 4 is greater than the
One decompression storehouse 3, a quarter of the connection valve diameter not less than the first decompression 3 diameter of storehouse.Setting can in this way
So that the limestone powder in the first decompression storehouse 3 rapidly enters the second decompression storehouse 4, and the second decompression 4 volume of storehouse more greatly can be with
The limestone powder for facilitating the first decompression of receiving storehouse 3 to fall, while reserved certain space avoids agstone to operation is vacuumized
Material blocks pipeline, affecting parameters adjustment.First decompression storehouse 3 and second decompression storehouse 4 from outside to inside successively include shell,
Outer heat insulation layer, intermediate interlayer and inner casing.The upper end that storehouse 4 is depressurized in first decompression storehouse 3, second is mounted on the vacuum for vacuumizing
Pump.Second decompression 4 bottom of storehouse is equipped with the spiral feeder towards rotary kiln 5, the first valve of spiral feeder face.Pass through
Spiral feeder can carry out material straight line conveying, while can reduce and optimize structure setting.
Limestone powder is sent into and is carried out with the isobaric rotary kiln 5 in the second decompression storehouse 4 by calcination processing, the second decompression storehouse 4
Calcination processing obtains high-temperature lime, and calcination temperature is 870 DEG C, calcination time 110min.Kiln tail in rotary kiln 5 passes through the
The second decompression of one valve connection storehouse 4, kiln hood connect third by the second valve and depressurize storehouse 6.Rotary kiln 5 is equipped with heating device
And vacuum evacuation device, heating device include burner, burner is arranged along 5 central axis of rotary kiln.It is evenly equipped in burner more
A burner noz(zle) for being used to connect fuel-device, burner are located at the air blast outside rotary kiln 5 close to second decompression 4 one end of storehouse connection
Machine.Vacuum evacuation device includes check valve, exhaust pipe and vacuum pump, and exhaust pipe is arranged in rotary kiln 5, and exhaust pipe is located at turn around kiln
Above 5 central axis and with 5 centerline axis parallel of rotary kiln.Check valve be uniformly arranged on exhaust pipe and check valve from outside to inside
Conducting, vacuum pump are located at turn around outside kiln 5 and are connected to exhaust pipe.The outlet side of vacuum pump is connected to preheater 2.
Rotary kiln 5 is followed successively by shell, outer heat insulation layer, intermediate interlayer, inner thermal insulating layer and inner casing from outside to inside, and burner is close
Third depressurizes 6 one end of storehouse and is connected to intermediate interlayer, and intermediate interlayer temperature is arranged at 820 DEG C, pressure 3E5Pa；In rotary kiln 5
Intermediate interlayer of the wall close to second the second decompression of decompression 4 one end of storehouse connection storehouse 4.Here with burning generate flue gas to return
Rotary kiln 5 carries out reheating, it is ensured that the temperature of rotary kiln 5 is uniform, so that decomposition of limestone is uniform, and reduces the damage of fuel
Consumption.
The intermediate interlayer of rotary kiln 5 successively passes through the intermediate interlayer in the second decompression storehouse 4, the close to second decompression 4 one end of storehouse
Preheater 2 is connected to after the intermediate interlayer in one decompression storehouse 3.Limestone powder after preheating subtracts by the first decompression storehouse 3 and second
Pressure can have the case where temperature decline behind storehouse 4, and the due effect of preheating is not achieved, and flue gas is discharged by burner and subtracts to first
Pressure storehouse 3 and the second decompression storehouse 4 are heated, and can form high temperature insulation layer on the first decompression storehouse 3 and the second decompression storehouse 4, most
It is reduced in big degree or the limestone powder after preheating is not present behind the first decompression storehouse 3 and the second decompression storehouse 4
The problem of thermal losses.The preheating that burner discharge flue gas can be made full use of simultaneously, reduces thermal losses.
High-temperature lime is sequentially sent to third decompression storehouse the 6, the 4th and depressurizes storehouse 7 and cooling chamber, returned by cooling treatment, rotary kiln 5
High-temperature lime is sent by rotary kiln 5 depressurizes storehouse 6 with its isobaric third, and third decompression storehouse 6 is closed after filling up high-temperature lime and revolution
5 channel of kiln, and high-temperature lime is sent into the 4th decompression storehouse 7.4th decompression storehouse 7 is closed and third decompression storehouse after filling up high-temperature lime
6 channels, and high-temperature lime is sent into cooling chamber and carries out cold front heavy rain.Finally obtain the lime that activity degree is 376ml.
Third depressurize storehouse 6 be located at right above the 4th decompression storehouse 7 and between setting connection valve, the 4th decompression storehouse 7 is greater than the
Three decompression storehouses 6, a quarter of the connection valve diameter not less than the 4th decompression 7 diameter of storehouse.Setting can in this way
So that the limestone powder in third decompression storehouse 6 rapidly enters the 4th decompression storehouse 7, and the 4th decompression 7 volume of storehouse more greatly can be with
The limestone powder for facilitating receiving third decompression storehouse 6 to fall；It reduces third decompression storehouse 6 and vacuumizes operation.Third depressurizes the upper of storehouse 6
End is equipped with the vacuum pump for vacuumizing.Third decompression storehouse 6 is located at turn around below the kiln hood of kiln 5.Height in this way in rotary kiln 5
Fire stons ash can be fallen directly into third decompression storehouse 6, convenient and efficient, reduce unnecessary transport device.
Raw limestone is realized to the conveying of rotary kiln 5 by multi-step pressure reduction storehouse in above scheme, its role is to pass through
Multi-step pressure reduction is adjusted, and raw limestone is sent into during rotary kiln 5 to the influence reduced to rotary kiln 5, keeps it for a long time
Under the vacuum state of needs, to realize continuous production.In the prior art, it is calcined in a vacuum although also having, its
More being to maintain segment section is vacuum state, such as kiln hood；Or change vacuum be it is fixed, feed intake to require to open again every time and forge
The stove of burning；The unnecessary energy is not only expended in this way, and is intermittent production, and continuous production, Zhi Nengshi is not present
Close the generation demand of small lot.Simultaneously it will be appreciated that its volume of the rotary kiln 5 of large size is very huge, vacuumizing is extremely to consume energy
, thus need to save the energy loss of each step.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (5)
1. a kind of active lime production method, which comprises the following steps:
Pretreatment will collect lime stone raw ore successively by broken, and cleaning desilts, and classification handles to obtain granule size to be 40-
Limestone powder is sent into feed bin storage by the limestone powder of 50mm；
Limestone powder in feed bin is sequentially sent to preheater, the first decompression storehouse and the second decompression storehouse by the pre-heat treatment, described pre-
Limestone powder surface and internal temperature is heated to 850 ± 10 DEG C and is sent into the first decompression storehouse by hot device, and the first decompression storehouse is filled up
It is closed after limestone powder and preheater interface channel and carries out being evacuated to 1E0~1E2Pa；First decompression storehouse is vacuumizing work
Limestone powder is all sent into the second decompression storehouse after the completion of industry；Second decompression storehouse, which is closed, depressurizes warehouse channel with first and is taken out
Vacuum is to 1E-1~1E-2Pa；
Limestone powder is sent into and is calcined with the rotary kiln of the second decompression storehouse equipressure by calcination processing, the second decompression storehouse
Processing obtains high-temperature lime, and calcination temperature is 850-950 DEG C, calcination time 90-140min；
High-temperature lime is sequentially sent to third decompression storehouse, the 4th decompression storehouse and cooling chamber by cooling treatment, the rotary kiln, and described time
Rotary kiln is sent into high-temperature lime and its isobaric third depressurizes storehouse, and third decompression storehouse is closed after filling up high-temperature lime and rotary kiln is logical
Road, and high-temperature lime is sent into the 4th decompression storehouse；4th decompression storehouse is closed after filling up high-temperature lime and third depressurizes warehouse channel, and
High-temperature lime is sent into cooling chamber and carries out cold front heavy rain；
By the second decompression of the first valve connection storehouse, kiln hood connects third by the second valve and subtracts kiln tail in the rotary kiln
Press storehouse；Rotary kiln is equipped with heating device and vacuum evacuation device, and the heating device includes burner, and the burner is along revolution
The setting of kiln central axis；Multiple burner noz(zle)s for being used to connect fuel-device are evenly equipped in burner, burner subtracts close to second
The connection of storehouse one end is pressed to be located at the air blower outside rotary kiln, burner is connected to preheater close to third decompression storehouse one end；It is described to take out very
Empty device includes check valve, exhaust pipe and vacuum pump, and the exhaust pipe is arranged in rotary kiln, and exhaust pipe is located at turn around kiln center
Above axis and with rotary kiln centerline axis parallel；The check valve is uniformly arranged on exhaust pipe and check valve is led from outside to inside
Logical, the vacuum pump is located at turn around outside kiln and is connected to exhaust pipe；The outlet side of the vacuum pump is connected to preheater；The revolution
Kiln is followed successively by shell, outer heat insulation layer, intermediate interlayer, inner thermal insulating layer and inner casing from outside to inside, and the burner is depressurized close to third
Storehouse one end is connected to intermediate interlayer, and intermediate interlayer temperature is arranged at 800-850 DEG C, pressure 3E5-6E5Pa；The rotary kiln
Intermediate interlayer is connected to preheater close to second decompression storehouse one end；It is described first decompression position in storehouse in second decompression storehouse right above and between
Setting connection valve, second decompression storehouse are greater than the first decompression storehouse, and the connection valve diameter is not less than the first decompression storehouse
The a quarter of diameter；Third decompression position in storehouse right above the 4th decompression storehouse and between setting connection valve, it is described
4th decompression storehouse be greater than third depressurize storehouse, the connection valve diameter not less than the 4th decompression storehouse diameter four/
One；The first decompression storehouse and the second decompression storehouse successively include shell, outer heat insulation layer, intermediate interlayer and inner casing from outside to inside；
The intermediate interlayer of the rotary kiln successively passes through the intermediate interlayer in the second decompression storehouse, the first decompression storehouse close to second decompression storehouse one end
Intermediate interlayer after be connected to preheater.
2. a kind of active lime production method according to claim 1, it is characterised in that: the preheater is connected with useless
Flash Gas Compression Skid System.
3. a kind of active lime production method according to claim 1, it is characterised in that: second decompression orlop portion
Equipped with the spiral feeder towards rotary kiln, the first valve of spiral feeder face.
4. a kind of active lime production method according to claim 1, it is characterised in that: third decompression position in storehouse in
Below the kiln hood of rotary kiln.
5. a kind of active lime production method according to claim 1, it is characterised in that: first decompression storehouse, the
The upper end in two decompression storehouses and third decompression storehouse is mounted on the vacuum pump for vacuumizing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236721.8A CN106673463B (en) | 2016-12-28 | 2016-12-28 | A kind of active lime production method |
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| CN201611236721.8A CN106673463B (en) | 2016-12-28 | 2016-12-28 | A kind of active lime production method |
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| CN106673463B true CN106673463B (en) | 2019-05-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1830863A (en) * | 2006-03-31 | 2006-09-13 | 河北理工大学 | Method and device of obtaining active lime by vacuum calcining limestone |
| CN101921073A (en) * | 2010-08-31 | 2010-12-22 | 贾会平 | Method and machine for producing lime |
| CN103387347A (en) * | 2013-07-30 | 2013-11-13 | 天津水泥工业设计研究院有限公司 | Method and device for producing active lime powder from calcined limestone |
| CN104496206A (en) * | 2014-06-19 | 2015-04-08 | 谢英健 | Method for preparation of high activity lime from calcite and comprehensive application of product |
-
2016
- 2016-12-28 CN CN201611236721.8A patent/CN106673463B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1830863A (en) * | 2006-03-31 | 2006-09-13 | 河北理工大学 | Method and device of obtaining active lime by vacuum calcining limestone |
| CN101921073A (en) * | 2010-08-31 | 2010-12-22 | 贾会平 | Method and machine for producing lime |
| CN103387347A (en) * | 2013-07-30 | 2013-11-13 | 天津水泥工业设计研究院有限公司 | Method and device for producing active lime powder from calcined limestone |
| CN104496206A (en) * | 2014-06-19 | 2015-04-08 | 谢英健 | Method for preparation of high activity lime from calcite and comprehensive application of product |
Non-Patent Citations (1)
| Title |
|---|
| 活性石灰的生产及在冶金中的应用;宋延辉等;《河北理工学院学报》;20060228;第28卷(第1期);第5-11页 |
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|---|---|
| CN106673463A (en) | 2017-05-17 |
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Effective date of registration: 20200713 Address after: 537811 Xinrong Village, Kuiyang Town, Xingye County, Yulin City, Guangxi Zhuang Autonomous Region Patentee after: Xingye Chenggang calcium comprehensive utilization Co., Ltd Address before: 545001, No. 1, No. 1-20, hang long Plaza, 20 North Bird Road, Liu Bei District, the Guangxi Zhuang Autonomous Region, Liuzhou Patentee before: LIUZHOU CHANGQUAN TRADE Co.,Ltd. |
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