CN107673637A - The suspension roasting device and its production technology of a kind of powdery active lime - Google Patents
The suspension roasting device and its production technology of a kind of powdery active lime Download PDFInfo
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- CN107673637A CN107673637A CN201711247363.5A CN201711247363A CN107673637A CN 107673637 A CN107673637 A CN 107673637A CN 201711247363 A CN201711247363 A CN 201711247363A CN 107673637 A CN107673637 A CN 107673637A
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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
- C04B2/108—Treatment or selection of the fuel therefor
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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
Abstract
The present invention relates to active lime production technical field,The suspension roasting device of specially a kind of powdery active lime,The upper end of first cyclone preheater is communicated with one end of smokejack,The upper end that the side wall of the smokejack passes through the 3rd pipeline communication waste heat boiler,The lower end of the roaster is communicated with burner,The side wall lower ends of burner are connected with fuel inlet pipeline,The side wall lower ends of the step cooler are communicated with air inlet pipe,Air after cooling system heats enters to be used for roaster fuel combustion,Waste heat is set sufficiently to be recycled,Effectively reduce heat consumption,Resource utilization is high,It is easy to large-scale production,It is few using equipment,Floor space is small,It is easy to implement operation automation,It is easy to heat recovery,Advantageously reduce production cost,The powdery active lime activity produced is good,Production efficiency is high,Shorten the production time,Be advantageous to the economic benefit of enterprise.
Description
Technical field
The present invention relates to active lime production technical field, the suspension roasting device of specially a kind of powdery active lime and
Its production technology.
Background technology
In recent years, powdery active lime has become the new high-tech materials such as domestic iron powder sintering, light building material, chemical and answered
With an emphasis basic material of aspect, with domestic market demand amount sharply increase and the continuous increasing of environmental improvement dynamics
Greatly, lime production industry faces eliminate the backward production facilities with production technology process update immense pressure.
At present, domestic and international active lime production method mainly has three kinds intrinsically, and first method is with vertical
Kiln is equipped for main roasting, generally using the block lime stone more than 20mm as raw material, the production method using lump coal as fuel；The
Two kinds are generally also that but it is the production method using fuel gas as fuel using the block lime stone more than 20mm as raw material, i.e.,
So-called gas burning kiln using Maers Kiln as representative；The third is that rotary kiln is calcining kiln, vertical preheater is set in kiln tail, in kiln
Head is provided with the rotary kiln production method of vertical cooler.But these production methods are although each advantageous, but also each deposit
In clearly disadvantageous part.
Although the first production method investment is less, heat consumption is relatively low, organic substance environment such as serious coal tar be present
Pollution problem；Although second of production method heat consumption is relatively low, environment protection emission can realize qualified discharge, investment substantially compared with
Height, equal large-scale production ability is than more than high ten times of vertical furnace, and fuel type is limited；The third production method is generally with coal dust
For fuel, although product quality is relatively stable, it is possible to achieve qualified discharge, invest, heat consumption suitable with Maers Kiln
It is obvious higher.Simultaneously also there is following common deficiency in this three classes production method：（1）Single daily production capacity of set system is produced
The limitation of technique, production method maximum daily yield is typically not greater than 600 tons in first, second, production method highest day in the 3rd
Yield is typically not greater than 1200 tons；（2）Optimum calcination temperature is difficult to determine, it is difficult to controls；（3）Limestone resource wastes seriously,
Due to being typically only capable to be produced in above-mentioned active lime production method using the block raw limestone in 20-80mm, usually
Cause the waste of more than 30% limestone resource.These lime stones in small, broken bits being wasted form mining wastes, can form soil again
Ground takes and environmental pollution, forms secondary disaster；（4）Firing time is grown, and putting into product output from raw material needs 4-10 hours,
The even longer time；（5）Due to the factor using block lime stone, the product of these three production methods production usually also has 5%
Cross imitation frosted glass and be mingled with 5% raw burn material, product quality is deteriorated, influence downstream production and product quality；（6）Foregoing producer
The lime of method production, lime conversion ratio 80-90%, activity degree >=280ml；Lime is bulk, to needing to use powdered activated stone
The industry of ash causes inconvenience and cost increase；（7）It is difficult to the automation and intelligentification control of whole production system.
The content of the invention
It is an object of the invention to provide the suspension roasting device and its production technology of a kind of powdery active lime, it is used
Lime stone is subjected to grinding to suitable fineness, through suspension roasting technique productions powdery active lime, so as to by limestone resource
100% utilizes and accomplishes scale production, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of suspension roasting device of powdery active lime, including roaster, the upper end of the roaster are communicated with by L-type pipe
The side wall of cyclone separator, the upper end of the cyclone separator are communicated with the 3rd cyclone preheater by the 3rd preheating uptake flue
Side wall, the upper end of the 3rd cyclone preheater is communicated with the side of the second cyclone preheater by the second preheating uptake flue
Wall, the upper end of second cyclone preheater are communicated with the side wall of the first cyclone preheater, institute by the first preheating uptake flue
The side wall for stating the first preheating uptake flue is communicated with drawing-in device by feed pipe, and the side wall of the drawing-in device passes through the first pipe
Road is communicated with the upper end of powder cabin, and metering device is provided with the first pipeline, and the side wall of powder cabin is communicated with powder processed by second pipe
The upper end of device, the side wall of fuel pulverizing plant are communicated with raw limestone and enter pipe, the upper end connection of first cyclone preheater
There is one end of smokejack, the side wall of the smokejack passes through the upper end of the 3rd pipeline communication waste heat boiler, the lower end of waste heat boiler
By the side wall of the 4th pipeline communication smokejack, one section between the 3rd pipeline and the 4th pipeline of the smokejack is provided with
Valve, the side wall of the smokejack are communicated with dust arrester, are provided with high-temperature blower in dust arrester, the dust arrester it is another
One end is communicated with air-introduced machine, and the other end of air-introduced machine is communicated with chimney, and the lower end of the roaster is communicated with burner, burner
Side wall lower ends be connected with fuel inlet pipeline, side wall of the burner away from fuel inlet pipeline one end passes through the 5th pipeline
The side wall of step cooler is communicated with, the upper end of the step cooler passes through under the 6th pipeline communication cyclone separator
End, the side wall lower ends of the step cooler are communicated with air inlet pipe, and the lower end of the step cooler is communicated with cement output tank.
Preferably, the lower end of the 3rd cyclone preheater connects the side wall lower ends of burner by the first straight tube, described
The lower end of first cyclone preheater is communicated with the second straight tube, and the other end of the second straight tube reaches the through the second preheating uptake flue
The inside of two preheating uptake flues, the lower end of second cyclone preheater is communicated with the 3rd straight tube, the other end of the 3rd straight tube
The inside of the 3rd preheating uptake flue is reached through the 3rd preheating uptake flue.
A kind of production technology of the suspension roasting device of powdery active lime, comprises the following steps：
When S1, production, air-introduced machine and high-temperature blower are aspirated by combined pipe produces operation air-flow, and air is by air inlet pipe, so
Enter step cooler afterwards, then enter by the 5th pipeline in roaster, air-flow enters rotation by being calcined the L-type pipe of furnace upper end
Wind separator, then pass sequentially through the 3rd preheating uptake flue, the 3rd cyclone preheater, the second preheating uptake flue, the second rotation
Wind preheater, the first preheating uptake flue, the first cyclone preheater, smokejack, waste heat boiler, dust arrester and air-introduced machine, from
Chimney is discharged；
S2, while air-flow is run, fuel by fuel inlet pipeline enter burner in, then to roaster spray into fire
Material, fuel burn in roaster, air-flow are heated into sintering temperature, thermal current is discharged by roaster top, then passes through rotation
Wind separator, then successively by the 3rd preheating uptake flue, the 3rd cyclone preheater, the second preheating uptake flue, the second whirlwind
Preheater, the first preheating uptake flue and the first cyclone preheater, after carrying out heat exchange cooling by the lime powder with entrance, enter
Enter smokejack, enter back into waste heat boiler and cooled again, be down to suitable temperature and enter dust arrester, then entered by air-introduced machine
Enter chimney discharge；
S3, raw limestone enter fuel pulverizing plant by raw limestone into pipe, produce rear powdered lime raw material and are admitted to powder
Storehouse, then the first preheating uptake flue is admitted to by metering device and drawing-in device, then in turn through the first cyclone preheater,
Second preheating uptake flue, the second cyclone preheater, the 3rd preheating uptake flue, the 3rd cyclone preheater, by with discharge
Thermal current enters roaster after being preheated, and is thoroughly decomposed by sintering temperature in roaster, by CaCO be decomposed into CaO and
CO, the active lime after roasting enter cyclone separator with thermal current and carry out gas solid separation；
Active lime powder after S4, separation flows through the 6th pipeline and enters step cooler, is changed by the air with entrance
Enter cement output tank after heat cooling, be sent into warehouse for finished product, it is combustion-supporting that roaster progress is entered after the preheating that air passes through this stage.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is simple in construction, by the first cyclone preheater, the
Two cyclone preheaters and the 3rd cyclone preheater composition suspension preheating system；Roaster, cyclone separator and burner composition roasting
Burning system；Step cooler forms cooling system, and the air after cooling system heats, which enters, supplies roaster fuel combustion
Use, waste heat is sufficiently recycled, effectively reduce heat consumption, resource utilization is high, is easy to large-scale production, uses equipment
Few, floor space is small, is easy to implement operation automation, is easy to heat recovery, advantageously reduces production cost, produces
Powdery active lime activity is good, and production efficiency is high, shortens the production time, is advantageous to the economic benefit of enterprise；
Generally speaking, the present invention has following advantage in actual applications：1st, lime stone is subjected to grinding, because lime stone generally has
There is good grindability, grinding cost is relatively low, makes full use of limestone resource；2nd, using suspension calcining production technology, heat exchange effect
Rate greatly improves, and heat consumption reduces, and power consumption declines.Nanjing Chemical Engineering College professor Hu Daohe, which once did experiment, to draw a conclusion：In thing
Under material accumulation and suspended state, 40 ~ 80 times can be differed the time required to decomposing；3rd, the automation of production control can conveniently be realized；4th, it is raw
Production scale is needed to configure by user, and the single line daily output can realize 300t~5000t different scales；5th, gas, oil, coal can be used in fuel
Deng；6th, floor space reduces 60% compared to rotary kiln production system；7th, discharge fully meets current China's discharge standard requirement；8、
Investment is equivalent to the 25%~30% of rotary kiln production system；9th, Product Activity degree can match in excellence or beauty with rotary kiln product；10th, heat consumption is controllable
System is in 800~1000kcal/kg.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：Raw limestone enters pipe 1, fuel pulverizing plant 2, powder cabin 3, drawing-in device 4, first and preheats uptake flue 5, the
One cyclone preheater 6, second preheating uptake flue 7, the second cyclone preheater the 8, the 3rd preheating uptake flue 9, the 3rd whirlwind are pre-
Hot device 10, roaster 11, cyclone separator 12, step cooler 13, waste heat boiler 14, smokejack 15, dust arrester 16, combustion
Burner 17, fuel inlet pipeline 18, air-introduced machine 19, cement output tank 20, air inlet pipe 21.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, the present invention provides a kind of technical scheme：
A kind of suspension roasting device of powdery active lime, including roaster 11, the upper end of roaster 11 are communicated with by L-type pipe
The side wall of cyclone separator 12, the upper end of cyclone separator 12 are communicated with the 3rd whirlwind by the 3rd preheating uptake flue 9 and preheated
The side wall of device 10, the upper end of the 3rd cyclone preheater 10 are communicated with the second cyclone preheater 8 by the second preheating uptake flue 7
Side wall, the upper end of the second cyclone preheater 8 are communicated with the side wall of the first cyclone preheater 6 by the first preheating uptake flue 5, the
The side wall of one preheating uptake flue 5 is communicated with drawing-in device 4 by feed pipe, and the side wall of drawing-in device 4 is connected by the first pipeline
The upper end of powder cabin 3 is connected with, metering device is installed on the first pipeline, the side wall of powder cabin 3 is communicated with powder processed by second pipe and filled
2 upper end is put, the side wall of fuel pulverizing plant 2 is communicated with raw limestone and enters pipe 1, and the upper end of the first cyclone preheater 6 is communicated with
One end of smokejack 15, the side wall of smokejack 15 is by the upper end of the 3rd pipeline communication waste heat boiler 14, under waste heat boiler 14
End passes through the side wall of the 4th pipeline communication smokejack 15, one section installation of the smokejack 15 between the 3rd pipeline and the 4th pipeline
There is valve, the side wall of smokejack 15 is communicated with dust arrester 16, high-temperature blower is provided with dust arrester 16, dust arrester 16
The other end is communicated with air-introduced machine 19, and the other end of air-introduced machine 19 is communicated with chimney, and the lower end of roaster 11 is communicated with burner 17,
The side wall lower ends of burner 17 are connected with fuel inlet pipeline 18, and side wall of the burner 17 away from the one end of fuel inlet pipeline 18 is led to
Crossing the 5th pipeline communication has the side wall of step cooler 13, and the upper end of step cooler 13 passes through the 6th pipeline communication whirlwind
The lower end of separator 12, the side wall lower ends of step cooler 13 are communicated with air inlet pipe 21, and the lower end of step cooler 13 connects
It is connected with cement output tank 20.
The lower end of 3rd cyclone preheater 10 connects the side wall lower ends of burner 17, the preheating of the first whirlwind by the first straight tube
The lower end of device 6 is communicated with the second straight tube, and the other end of the second straight tube reaches the second preheating through the second preheating uptake flue 7 and risen
The inside of flue 7, the lower end of the second cyclone preheater 8 are communicated with the 3rd straight tube, and the other end of the 3rd straight tube is through the 3rd preheating
Uptake flue 9 reaches the inside of the 3rd preheating uptake flue 9.
A kind of production technology of the suspension roasting device of powdery active lime, comprises the following steps：
When S1, production, air-introduced machine 19 and high-temperature blower are aspirated by combined pipe and produce operation air-flow, and air passes through air inlet pipe
21, enter subsequently into step cooler 13, then by the 5th pipeline in roaster 11, air-flow passes through the upper end of roaster 11
L-type pipe enters cyclone separator 12, then passes sequentially through the 3rd preheating uptake flue 9, the preheating of the 3rd cyclone preheater 10, second
Uptake flue 7, the second cyclone preheater 8, first preheating uptake flue 5, the first cyclone preheater 6, smokejack 15, waste heat boiler
14th, dust arrester 16 and air-introduced machine 19, discharged from chimney；
S2, while air-flow is run, fuel by fuel inlet pipeline 18 enter burner 17 in, then roaster 11 is sprayed
Entering fuel, fuel is burnt in roaster 11, and air-flow is heated into sintering temperature, and thermal current is discharged by the top of roaster 11, with
Afterwards by cyclone separator 12, then rise successively by the 3rd preheating uptake flue 9, the preheating of the 3rd cyclone preheater 10, second
Flue 7, the second cyclone preheater 8, first preheating cyclone preheater 6 of uptake flue 5 and first, pass through the lime powder with entrance
After carrying out heat exchange cooling, into smokejack 15, enter back into waste heat boiler 14 and cooled again, be down to suitable temperature and enter dedusting
Device 16, chimney is then entered by air-introduced machine 19 and discharged；
S3, raw limestone enter pipe 1 by raw limestone and enter fuel pulverizing plant 2, produce rear powdered lime raw material and are admitted to
Powder cabin 3, then the first preheating uptake flue 5 is admitted to by metering device and drawing-in device 4, it is pre- then in turn through the first whirlwind
Hot device 6, second preheats uptake flue 7, the second cyclone preheater the 8, the 3rd preheating uptake flue 9, the 3rd cyclone preheater 10, leads to
The thermal current crossed and discharged enters roaster 11 after being preheated, and is thoroughly decomposed by sintering temperature in roaster 11, will
CaCO3It is decomposed into CaO and CO2, active lime after roasting enters cyclone separator 12 with thermal current and carries out gas solid separation；
Active lime powder after S4, separation flows through the 6th pipeline and enters step cooler 13, is carried out by the air with entrance
Enter cement output tank 20 after heat exchange cooling, be sent into warehouse for finished product, helped after the preheating that air passes through this stage into roaster 11
Combustion.
The present invention is simple in construction, and the first cyclone preheater 6, the second cyclone preheater 8 and the 3rd cyclone preheater 10 form
Suspension preheating system；Roaster 11, cyclone separator 12 and burner 17 form roasting system；Step cooler 13 forms cold
But system, the air after cooling system heats enters to be used for the fuel combustion of roaster 11, waste heat is sufficiently returned
Receive and utilize, effectively reduce heat consumption, resource utilization is high, is easy to large-scale production, few using equipment, floor space is small, is easy to implement
Operation automation, it is easy to heat recovery, advantageously reduces production cost, the powdery active lime activity produced is good, raw
Efficiency high is produced, the production time is shortened, is advantageous to the economic benefit of enterprise.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of suspension roasting device of powdery active lime, including roaster（11）, it is characterised in that：The roaster（11）
Upper end cyclone separator is communicated with by L-type pipe（12）Side wall, the cyclone separator（12）Upper end it is pre- by the 3rd
Hot uptake flue（9）It is communicated with the 3rd cyclone preheater（10）Side wall, the 3rd cyclone preheater（10）Upper end pass through
Second preheating uptake flue（7）It is communicated with the second cyclone preheater（8）Side wall, second cyclone preheater（8）Upper end
Pass through the first preheating uptake flue（5）It is communicated with the first cyclone preheater（6）Side wall, it is described first preheating uptake flue（5）
Side wall drawing-in device is communicated with by feed pipe（4）, the drawing-in device（4）Side wall have powder cabin by the first pipeline communication
（3）Upper end, metering device, powder cabin are installed on the first pipeline（3）Side wall fuel pulverizing plant is communicated with by second pipe（2）
Upper end, fuel pulverizing plant（2）Side wall be communicated with raw limestone enter pipe（1）, first cyclone preheater（6）Upper end
It is communicated with smokejack（15）One end, the smokejack（15）Side wall pass through the 3rd pipeline communication waste heat boiler（14）It is upper
End, waste heat boiler（14）Lower end pass through the 4th pipeline communication smokejack（15）Side wall, the smokejack（15）Positioned at the 3rd
One section between pipeline and the 4th pipeline is provided with valve, the smokejack（15）Side wall be communicated with dust arrester（16）, remove
Dirt device（16）High-temperature blower, the dust arrester are inside installed（16）The other end be communicated with air-introduced machine（19）, air-introduced machine
（19）The other end be communicated with chimney, the roaster（11）Lower end be communicated with burner（17）, burner（17）It is connected with
Fuel inlet pipeline（18）, the burner（17）Away from fuel inlet pipeline（18）The side wall of one end passes through the 5th pipeline communication
There is step cooler（13）Side wall, the step cooler（13）Upper end pass through the 6th pipeline communication cyclone separator
（12）Lower end, the step cooler（13）Side wall lower ends be communicated with air inlet pipe（21）, the step cooler
（13）Lower end be communicated with cement output tank（20）.
A kind of 2. suspension roasting device of powdery active lime according to claim 1, it is characterised in that：3rd rotation
Wind preheater（10）Lower end pass through the first straight tube connect burner（17）Side wall lower ends, first cyclone preheater（6）
Lower end be communicated with the second straight tube, the other end of the second straight tube is through the second preheating uptake flue（7）The second preheating is reached to rise
Flue（7）Inside, second cyclone preheater（8）Lower end be communicated with the 3rd straight tube, the other end of the 3rd straight tube runs through
3rd preheating uptake flue（9）Reach the 3rd preheating uptake flue（9）Inside.
A kind of 3. suspension roasting device of powdery active lime according to claim 1, it is characterised in that：The burner
（17）Side wall lower ends be connected with fuel inlet pipeline（18）.
4. a kind of production technology of the suspension roasting device of powdery active lime according to claim 1-3, its feature exist
In comprising the following steps：
When S1, production, air-introduced machine（19）Aspirated with high-temperature blower by combined pipe and produce operation air-flow, air passes through air inlet pipe
（21）, subsequently into step cooler（13）, then by the 5th pipeline enter roaster（11）Interior, air-flow passes through roaster
（11）The L-type pipe of upper end enters cyclone separator（12）, then pass sequentially through the 3rd preheating uptake flue（9）, the 3rd whirlwind it is pre-
Hot device（10）, second preheating uptake flue（7）, the second cyclone preheater（8）, first preheating uptake flue（5）, the first whirlwind it is pre-
Hot device（6）, smokejack（15）, waste heat boiler（14）, dust arrester（16）And air-introduced machine（19）, discharged from chimney；
S2, while air-flow is run, fuel passes through fuel inlet pipeline（18）Into burner（17）It is interior, then to roaster
（11）Fuel is sprayed into, fuel is in roaster（11）Middle burning, air-flow is heated to sintering temperature, thermal current is by roaster（11）On
Portion discharges, and then passes through cyclone separator（12）, then successively by the 3rd preheating uptake flue（9）, the 3rd cyclone preheater
（10）, second preheating uptake flue（7）, the second cyclone preheater（8）, first preheating uptake flue（5）Preheated with the first whirlwind
Device（6）, after carrying out heat exchange cooling by the lime powder with entrance, into smokejack（15）, enter back into waste heat boiler（14）Enter
Row cools again, is down to suitable temperature and enters dust arrester（16）, then pass through air-introduced machine（19）Discharged into chimney；
S3, raw limestone are entered by raw limestone manages（1）Into fuel pulverizing plant（2）, produce rear powdered lime raw material quilt
It is sent into powder cabin（3）, then pass through metering device and drawing-in device（4）It is admitted to the first preheating uptake flue（5）, then in turn through
First cyclone preheater（6）, second preheating uptake flue（7）, the second cyclone preheater（8）, the 3rd preheating uptake flue（9）、
3rd cyclone preheater（10）, roaster is entered after being preheated by the thermal current with discharge（11）, in roaster（11）In
Thoroughly decomposed by sintering temperature, by CaCO3It is decomposed into CaO and CO2, active lime after roasting is with thermal current into whirlwind point
From device（12）Carry out gas solid separation；
Active lime powder after S4, separation flows through the 6th pipeline and enters step cooler（13）, entered by the air with entrance
Enter cement output tank after row heat exchange cooling（20）, it is sent into warehouse for finished product, roaster is entered after the preheating that air passes through this stage（11）
Carry out combustion-supporting.
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| CN201711247363.5A CN107673637A (en) | 2017-12-01 | 2017-12-01 | The suspension roasting device and its production technology of a kind of powdery active lime |
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| CN201711247363.5A CN107673637A (en) | 2017-12-01 | 2017-12-01 | The suspension roasting device and its production technology of a kind of powdery active lime |
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| CN108059369A (en) * | 2018-02-12 | 2018-05-22 | 沈阳鑫博工业技术股份有限公司 | A kind of preparation facilities and method for producing aluminium oxide lime |
| CN109437608A (en) * | 2018-11-09 | 2019-03-08 | 余松涛 | A kind of two-way wind built-in heat exchanger lime shaft kiln and its method for calcinating |
| CN109467323A (en) * | 2019-01-15 | 2019-03-15 | 王誓学 | Lime suspension calcining process equipment |
| CN109896760A (en) * | 2019-04-04 | 2019-06-18 | 南京凯盛国际工程有限公司 | A kind of device and technique using cement kiln end lime burning |
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| CN103435276A (en) * | 2013-07-26 | 2013-12-11 | 新兴河北工程技术有限公司 | Production apparatus of active lime |
| CN105347702A (en) * | 2015-11-18 | 2016-02-24 | 石家庄新华能源环保科技股份有限公司 | Cement production rotary kiln device |
| CN107226627A (en) * | 2017-07-10 | 2017-10-03 | 合肥水泥研究设计院 | A kind of two grades of suspension calcining devices of active powder lime |
| CN207828134U (en) * | 2017-12-01 | 2018-09-07 | 河南中蓝新材料科技有限公司 | A kind of suspension roasting device of powdery active lime |
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