CN110451542A - A kind of technique and production system using aluminium ash production calcium aluminate powder - Google Patents
A kind of technique and production system using aluminium ash production calcium aluminate powder Download PDFInfo
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- CN110451542A CN110451542A CN201910890863.3A CN201910890863A CN110451542A CN 110451542 A CN110451542 A CN 110451542A CN 201910890863 A CN201910890863 A CN 201910890863A CN 110451542 A CN110451542 A CN 110451542A
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- raw material
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- aluminium ash
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/16—Preparation of alkaline-earth metal aluminates or magnesium aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/164—Calcium aluminates
Abstract
The embodiment of the present application shows a kind of technique and production system using aluminium ash production calcium aluminate powder, and technique includes: to be uniformly mixed with lime stone according to predetermined ratio by aluminium ash after crushing and screening, obtain mixed raw material；By the mixed raw material ball-milling treatment, mixed raw material powder is obtained；By the pre- thermal decomposition process of mixed raw material powder, obtain decomposing mixed raw material；By the decomposition mixed raw material sintering processes, sintering block is obtained；Milling screening after sintering block cooling is obtained into the calcium aluminate powder.The production system using aluminium ash production calcium aluminate powder shown includes raw material preparation facilities, raw material calciner plant and clinker processing unit (plant)；The processing technology carried out using the above production system by aluminium ash the harmful substances such as fluoride, nitride and calcium binding become innocuous substance; aluminium ash is not only processed into innocuous substance protection environment; and production department's calcium aluminate powder is the primary raw material for preparing efficient water treatment agent, economy and obvious environment benefit.
Description
Technical field
The present invention relates to chemical waste processing technology field, in particular to a kind of work using aluminium ash production calcium aluminate powder
Skill and production system.
Background technique
Aluminium ash results from the process that melting occurs for all aluminium such as aluminium electroloysis, aluminium (containing secondary aluminium) processing.Its source can be divided into
The aluminium ash generated in aluminium electroloysis smelting process, the aluminium ash in aluminium fusion-casting process and the aluminium ash in secondary aluminium process.Aluminium ash exists
The high-risk chemicals such as ammonia, hydrogen fluoride, cyanide are also easy to produce in generation and disposal process.In recent years, in face of increasingly serious ring
The disposition of border situation, aluminium industry dangerous waste aluminium ash becomes focal issue in the industry.Reality is due to lacking social benefit, environment
The unified technology of benefit, economic benefit three, the processing of China's Aluminum ash is at present still in more original primary stage, phase
It is buried or arbitrarily abandons when a part of aluminium ash is unprocessed, not only the useful component in aluminium ash cannot be integrated effectively
It utilizes, but also serious pollution environment.
Summary of the invention
The embodiment of the present invention provides a kind of technique and production system using aluminium ash production calcium aluminate powder, can not only be by aluminium
Ash is processed into innocuous substance protection environment, additionally it is possible to comprehensively utilize the useful component in aluminium ash, economy and obvious environment benefit.
The embodiment of the present application first aspect shows a kind of technique using aluminium ash production calcium aluminate powder, and the technique includes
Following steps:
By aluminium ash after crushing and screening, it is uniformly mixed with lime stone according to predetermined ratio, obtains mixed raw material；
By the mixed raw material ball-milling treatment, mixed raw material powder is obtained；
By the pre- thermal decomposition process of mixed raw material powder, obtain decomposing mixed raw material；
By the decomposition mixed raw material sintering processes, sintering block is obtained；
Milling screening after sintering block cooling is obtained into the calcium aluminate powder.
Further, it is described by the mixed raw material ball-milling treatment include: by the mixed raw material with belt feeder send to
Material machine, then host is delivered to by batcher and is ground, the powder after grinding is blown to point above host by the air-flow of air blower
Analysis machine is sieved, and granularity particle up to specification is blown to cyclone collector, through by flour extraction pipe after being collected by cyclone collector
Discharge, obtains the mixed raw material powder.
It further, include that the mixed raw material powder is subjected to multistage by the pre- thermal decomposition process of mixed raw material powder
Pre- thermal decomposition.
Further, the chemical formula of the pre- thermal decomposition process of mixed raw material powder are as follows: CaCO3→CaO+CO2, described to incite somebody to action
The chemical formula for decomposing mixed raw material sintering processes are as follows: 12CaO+7Al2O3→12CaO·7Al2O3。
Further, the predetermined ratio of the aluminium ash and lime stone is 1:1.
The embodiment of the present application second aspect shows a kind of production system using aluminium ash production calcium aluminate powder, the production
System includes: raw material preparation facilities, raw material calciner plant and clinker processing unit (plant)；
The raw material preparation facilities is grey for crushing and screening aluminium, be uniformly mixed aluminium ash and lime stone and ball milling mixing is former
Material, the raw material preparation facilities includes crusher, screening machine, milling system；
The raw material calciner plant is including predecomposition device and calcination rotary kiln；
The clinker processing unit (plant) includes cooler and grinding machine.
Further, the milling system includes host, analysis machine, air blower, cyclone collector, flour extraction pipe and ball milling
Machine, the host are used to support the analysis machine, the air blower, the cyclone collector, the flour extraction pipe and the ball
Grinding machine；
The ball mill is used for ball milling mixing raw material；
The air blower is used to blow to the mixed raw material after ball milling the inside of the analysis machine, and, after screening
Mixed raw material blows to the cyclone collector；
The analysis machine is for sieving the mixed raw material after ball milling；
The cyclone collector is used to collect the mixed raw material after screening；
The flour extraction pipe is used to that the mixed raw material after screening to be discharged.
Further, the predecomposition device includes one cyclonic cylinder, second level cyclone cylinder, three-level cyclone cylinder and Category Four cyclone
Cylinder, one end of the one cyclonic cylinder are connected with the raw material preparation facilities, and the other end of the one cyclonic cylinder passes through upper
Riser is connected with the second level cyclone cylinder, and the other end of the second level cyclone cylinder passes through upper riser and the three-level whirlwind
Cylinder is connected, and the other end of the three-level cyclone cylinder is connected with the Category Four cyclone cylinder, the other end of the Category Four cyclone cylinder
It is connected with the calcination rotary kiln.
Further, the calcination rotary kiln persistently rotates during calcinations and sintering.
Further, the system also includes dust-extraction unit, the dust-extraction unit for eliminate the raw material preparation facilities,
The dust generated in the raw material calciner plant and the clinker processing unit (plant) course of work.
By above technical scheme as it can be seen that the technique using aluminium ash production calcium aluminate powder shown in the embodiment of the present application includes:
By aluminium ash after crushing and screening, it is uniformly mixed with lime stone according to predetermined ratio, obtains mixed raw material；By the mixed raw material
Ball-milling treatment obtains mixed raw material powder；By the pre- thermal decomposition process of mixed raw material powder, obtain decomposing mixed raw material；It will
The decomposition mixed raw material sintering processes obtain sintering block；Milling screening after sintering block cooling is obtained into institute
State calcium aluminate powder.The production system using aluminium ash production calcium aluminate powder shown includes raw material preparation facilities, raw material calciner plant
And clinker processing unit (plant)；The raw material preparation facilities for crushing and screening aluminium ash, by aluminium ash and lime stone be uniformly mixed and
Ball milling mixing raw material, the raw material preparation facilities include crusher, screening machine, milling system；The raw material calciner plant is packet
Include predecomposition device and calcination rotary kiln；The clinker processing unit (plant) includes cooler and grinding machine.It is carried out using the above production system
Processing technology by aluminium ash the harmful substances such as fluoride, nitride and calcium binding become innocuous substance, not only by aluminium
Ash is processed into innocuous substance protection environment, and production department's calcium aluminate powder is the primary raw material for preparing efficient water treatment agent, economical
And obvious environment benefit.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the flow chart of the technique that calcium aluminate powder is produced using aluminium ash shown in the embodiment of the present application；
Fig. 2 is the structural schematic diagram of the production system that calcium aluminate powder is produced using aluminium ash shown in the embodiment of the present application.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
The embodiment of the present application first aspect shows a kind of technique using aluminium ash production calcium aluminate powder, as shown in Figure 1, institute
State technique the following steps are included:
S101, by aluminium ash after crushing and screening, be uniformly mixed with lime stone according to predetermined ratio, obtain mixed raw material.
Aluminium ash is fed directly to raw material storage with belt after broken, screening, presses raw material proportioning release grinding machine with lime stone.
S102, by the mixed raw material ball-milling treatment, obtain mixed raw material powder
It by the mixed raw material ball-milling treatment include: to send the mixed raw material to feed with belt feeder specifically, described
Machine, then host is delivered to by batcher and is ground, the powder after grinding is blown to the analysis above host by the air-flow of air blower
Machine is sieved, and granularity particle up to specification is blown to cyclone collector, is arranged after being collected by cyclone collector by flour extraction pipe
Out, the mixed raw material powder is obtained.
S103, by the pre- thermal decomposition process of mixed raw material powder, obtain decomposing mixed raw material
Specifically, including that the mixed raw material powder is carried out multistage in advance by the pre- thermal decomposition process of mixed raw material powder
Thermal decomposition.Cyclone preheater rotary system is made of the Category Four cyclone cylinder being arranged above and below, in order to improve dust-collecting efficiency, most upper one
Grade cyclone cylinder is the bitubular.It is connected between cyclone cylinder by upper riser, the pipeline that each cyclone cylinder is connected forms the one of preheater
A grade.The raw material being homogenized uniformly are sprinkled into II grade of preheater by promotion, conveying and dispersion device and rise air hose by metering device
In, suspension raw material and pipeline hot gases carry out heat exchange and bring I grade of cyclone cylinder into；After I grade of cyclone cylinder is separated with air-flow, by
The blanking system of I grade of cyclone cylinder feeds III grade of cyclone cylinder and rises air hose, again with hot gases heat exchange and bring II grade of whirlwind into
Cylinder.It is calcined in this way, successively entering in rotary kiln through Category Four cyclone preheater, raw material enter kiln after preheaters at different levels preheating
Tail, the thermal efficiency about 65%, the exhaust gas of preheater discharge through bag filter handle it is up to standard after through 40m chimney be discharged into atmosphere.
Wherein, the chemical formula of the pre- thermal decomposition process of mixed raw material powder are as follows: CaCO3→CaO+CO2。
S104, by the decomposition mixed raw material sintering processes, obtain sintering block.
Preheated raw material enter rotary kiln and carry out melting, and rotary kiln connects rotation with transmission system by central gear wheel
Turn.
Wherein, described by the chemical formula for decomposing mixed raw material sintering processes are as follows: 12CaO+7Al2O3→12CaO·
7Al2O3.In addition, the fluoride and calcium ion reaction in aluminium ash generate the innocuous substances such as calcirm-fluoride, nitride and calcium ion reaction
Generate the innocuous substances such as calcium nitrate.
S105, milling screening after sintering block cooling is obtained into the calcium aluminate powder.
For cooler using air-cooled, air-cooled tail gas enters rotary kiln.After agglomerate is cooling, as the cooler of rotation is rolled to
Discharging car is transported into warehouse for finished product.The bulk product of warehouse for finished product is promoted for matching production capacity, this reorganization and expansion increases precrushing, block newly
Shape product is promoted to grinding machine with elevator and is milled, screened through powder concentrator after precrushing, and underproof return finished product mill adds again
Work is qualified to be packed and stored with packing machine.
As preferred embodiment, the predetermined ratio of the aluminium ash and lime stone is 1:1.Aluminium ash (aluminium slag) belongs to danger
Dangerous waste makes the harmful substances such as fluoride therein, nitride and calcium binding become harmless object by high-temperature chemical reaction
Matter, mainly using aluminium grey (main component Al2O3) and lime stone (main component CaCO3) production calcium aluminate powder (chemical name:
12CaO7Al2O3, main ingredient are the mixtures of Calcium dialuminate (CaO2A12O3) and a calcium aluminate (CaOA12O3)),
It is the primary raw material for preparing efficient water treatment agent.It should be 12:7 according to the proportion of chemical formula lime stone and the aluminium ash of sintering processes,
But in actual production, the alchlor ingredient in aluminium ash is not achieved the concentration of sintering, generally 51% or so, therefore in order to
The content for increasing aluminium ash in the mixture is sufficiently reacted, the predetermined ratio through overtesting aluminium ash and lime stone is that 1:1 is most
Good ratio.
From the above technical scheme, the technique using aluminium ash production calcium aluminate powder shown in the embodiment of the present application includes:
By aluminium ash after crushing and screening, it is uniformly mixed with lime stone according to predetermined ratio, obtains mixed raw material；By the mixed raw material
Ball-milling treatment obtains mixed raw material powder；By the pre- thermal decomposition process of mixed raw material powder, obtain decomposing mixed raw material；It will
The decomposition mixed raw material sintering processes obtain sintering block；Milling screening after sintering block cooling is obtained into institute
State calcium aluminate powder.Using process above by aluminium ash the harmful substances such as fluoride, nitride and calcium binding become harmless
Aluminium ash is not only processed into innocuous substance protection environment by substance, but also production department's calcium aluminate powder prepares efficient water treatment agent
Primary raw material, economy and obvious environment benefit.
The embodiment of the present application second aspect shows a kind of production system using aluminium ash production calcium aluminate powder, such as Fig. 2 institute
Show, the production system includes: raw material preparation facilities 1, raw material calciner plant 2 and clinker processing unit (plant) 3；The raw material preparation
Device 1 is grey for crushing and screening aluminium, grey by aluminium and lime stone is uniformly mixed and ball milling mixing raw material, the raw material preparation facilities
1 includes crusher 11, screening machine 12, milling system 13；The raw material calciner plant 2 is turned round including predecomposition device 21 with calcining
Kiln 22；The clinker processing unit (plant) 3 includes cooler 31 and grinding machine 32.When production, raw material preparation facilities 1 passes through raw material broken
After machine 11 crushes, the mixed raw material of powdery is obtained after sieving by screening machine 12, then after grinding raw material by milling system 13.
Specifically, the milling system 13 includes host 131, analysis machine 132, air blower 133, cyclone collector 134, goes out
Tube cell 135 and ball mill 136, the host 131 are used to support the analysis machine 132, the air blower 133, the whirlwind
Collector 134, the flour extraction pipe 135 and the ball mill 136；The ball mill 136 is used for ball milling mixing raw material；The drum
Blower 133 is used to blow to the mixed raw material after ball milling the inside of the analysis machine 132, and, by the mixed raw material after screening
Blow to the cyclone collector 134；The analysis machine 132 is for sieving the mixed raw material after ball milling；Wherein, host can be by machine
Frame, air inlet turbine, perching knife, grinding roller, bull ring and housing composition.The good raw material of ingredient is sent with belt feeder to storage hopper, then by
Electro-vibrating feeder is quantitatively sent into host 131 and is ground.Powder after grinding blows to host by the air-flow of air blower 133
The analysis machine 132 of 131 tops is sieved.The excessively thick person of granularity, which still falls in host 131, to reface, and granularity closes symbol specification person with distinguished and admirable
It into cyclone collector 134, is discharged, is come out through the ball system processed inside ball mill 136 as spherical through flour extraction pipe 135 after collection
Raw material finished product.
Purified air-flow flows into air blower 133 through the pipeline of cyclone collector upper end.Wind path is closed cycle, except drum
Blower 133 to grinding chamber is outside positive pressure, and remaining pipes interior air-flow flows under negative pressure, and sanitary condition is preferable in workshop.Due to
Material contained humidity is heated in grinding to be evaporated to gas, and the gas that each joint, feed inlet etc. leak into air hose in pipeline is led
The air quantity in circulating air duct is caused to increase, the air quantity of this increase is directed at whirly through the lingering remnants of past customs pipe among air blower and host and collects
Device is discharged after collecting by another pipeline in company with the distinguished and admirable powder brought into.Gas still contains certain density dust, and gas is through small
The bag-type dust collector that the pipeline of cyclone collector upper end is discharged into rotary kiln is recycled after being handled and is utilized again.
Following reactions: CaCO are carried out in predecomposition device 213→CaO+CO2, CO2It is discharged through piping, CaO is further continued for burning
Knot reaction: 12CaO+7Al2O3→12CaO·7Al2O3。
As preferred embodiment, the predecomposition device 21 may include one cyclonic cylinder 211, second level cyclone cylinder 212, three
Grade cyclone cylinder 213 and Category Four cyclone cylinder 214, one end of the one cyclonic cylinder 211 are connected with the raw material preparation facilities 1
Logical, the other end of the one cyclonic cylinder 211 is connected by upper riser with the second level cyclone cylinder 212, the second level rotation
The other end of air duct 212 is connected by upper riser with the three-level cyclone cylinder 213, the three-level cyclone cylinder 213 it is another
End is connected with the Category Four cyclone cylinder 214, and the other end of the Category Four cyclone cylinder 214 is connected with the calcination rotary kiln 22
It is logical.
Cyclone preheater rotary system is made of the Category Four cyclone cylinder being arranged above and below, most upper in order to improve dust-collecting efficiency
One cyclonic cylinder 211 is the bitubular.It is connected between cyclone cylinder by upper riser, the pipeline that each cyclone cylinder is connected forms preheater
A grade.The raw material being homogenized uniformly are sprinkled into second level preheater by promotion, conveying and dispersion device and are risen by metering device
In air hose, suspension raw material and pipeline hot gases carry out heat exchange and bring one cyclonic cylinder 211 into；Through one cyclonic cylinder 211 with
After air-flow separation, air hose is risen by the blanking system feeding three-level cyclone cylinder 213 of one cyclonic cylinder 211, again and hot gases
Heat exchange simultaneously brings second level cyclone cylinder 212 into.It is calcined in this way, successively entering in rotary kiln through Category Four cyclone preheater, raw material
Enter kiln tail, the thermal efficiency about 65% after preheaters at different levels preheating, the exhaust gas of preheater discharge handles up to standard through bag filter
Atmosphere is discharged by 40m chimney.
The calcination rotary kiln 22 persistently rotates during calcinations and sintering.Rotary kiln has 3% gradient, object when it is rotated
Material is rolled to kiln hood from kiln tail, to adequately be mixed, is uniformly distributed various materials, and complete: reacting and sintered
Journey.Rotary kiln uses coal dust as fuel, passes through in kiln hood, spray gun torch burning.Within the scope of torch (sintering belt), temperature about 1400
DEG C, raw material is chemically reacted at high temperature and is become semi-molten state, generates calcium aluminate agglomerate, and the sintering of semi-molten is blocky
Material is rolled to the sub-cooled band of about 6-8m long behind torch, and the cooler of rotation is then entered in kiln hood feed opening.
As preferred embodiment, the system also includes dust-extraction unit 4, the dust-extraction unit 4 is for eliminating the life
The dust generated in material preparation facilities 1, the raw material calciner plant 2 and 3 course of work of clinker processing unit (plant).
Those skilled in the art will readily occur to its of the application after considering specification and practicing application disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or
Person's adaptive change follows the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are by above
Claim is pointed out.
It should be understood that the application is not limited to the accurate process for being described above and being shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by the accompanying claims.
Claims (10)
1. it is a kind of using aluminium ash production calcium aluminate powder technique, which is characterized in that the technique the following steps are included:
By aluminium ash after crushing and screening, it is uniformly mixed with lime stone according to predetermined ratio, obtains mixed raw material；
By the mixed raw material ball-milling treatment, mixed raw material powder is obtained；
By the pre- thermal decomposition process of mixed raw material powder, obtain decomposing mixed raw material；
By the decomposition mixed raw material sintering processes, sintering block is obtained；
Milling screening after sintering block cooling is obtained into the calcium aluminate powder.
2. a kind of technique using aluminium ash production calcium aluminate powder according to claim 1, which is characterized in that it is described will be described
Mixed raw material ball-milling treatment include: the mixed raw material is sent with belt feeder to batcher, then by batcher be delivered to host into
Row grinding, the powder after grinding are blown to the analysis machine above host by the air-flow of air blower and are sieved, and granularity is up to specification
Particle is blown to cyclone collector, is discharged after being collected by cyclone collector by flour extraction pipe, obtains the mixed raw material powder.
3. a kind of technique using aluminium ash production calcium aluminate powder according to claim 1, which is characterized in that by the mixing
The pre- thermal decomposition process of raw material powder includes that the mixed raw material powder is carried out to multistage pre- thermal decomposition.
4. a kind of technique using aluminium ash production calcium aluminate powder according to claim 1, which is characterized in that the mixing is former
The chemical formula of the pre- thermal decomposition process in feed powder end are as follows: CaCO3→CaO+CO2, described by the change for decomposing mixed raw material sintering processes
Formula are as follows: 12CaO+7Al2O3→12CaO·7Al2O3。
5. it is according to claim 4 it is a kind of using aluminium ash production calcium aluminate powder technique, which is characterized in that the aluminium ash and
The predetermined ratio of lime stone is 1:1.
6. a kind of production system using aluminium ash production calcium aluminate powder, which is characterized in that the production system includes: raw material preparation
Device (1), raw material calciner plant (2) and clinker processing unit (plant) (3)；
The raw material preparation facilities (1) is grey for crushing and screening aluminium, be uniformly mixed aluminium ash and lime stone and ball milling mixing is former
Material, the raw material preparation facilities (1) includes crusher (11), screening machine (12), milling system (13)；
The raw material calciner plant (2) is including predecomposition device (21) and calcination rotary kiln (22)；
The clinker processing unit (plant) (3) includes cooler (31) and grinding machine (32).
7. a kind of production system using aluminium ash production calcium aluminate powder according to claim 6, which is characterized in that the ball
Grinding system (13) include host (131), analysis machine (132), air blower (133), cyclone collector (134), flour extraction pipe (135) with
And ball mill (136), the host (131) are used to support the analysis machine (132), the air blower (133), the whirlwind and receive
Storage (134), the flour extraction pipe (135) and the ball mill (136)；
The ball mill (136) is used for ball milling mixing raw material；
The air blower (133) is used to blow to the mixed raw material after ball milling the inside of the analysis machine (132), and, it will sieve
Mixed raw material after point blows to the cyclone collector (134)；
The analysis machine (132) is for sieving the mixed raw material after ball milling；
The cyclone collector (134) is used to collect the mixed raw material after screening；
The flour extraction pipe (135) is used to that the mixed raw material after screening to be discharged.
8. a kind of production system using aluminium ash production calcium aluminate powder according to claim 6, which is characterized in that described pre-
Decomposer (21) includes one cyclonic cylinder (211), second level cyclone cylinder (212), three-level cyclone cylinder (213) and Category Four cyclone cylinder
(214), one end of the one cyclonic cylinder (211) is connected with the raw material preparation facilities (1), the one cyclonic cylinder
(211) the other end is connected by upper riser with the second level cyclone cylinder (212), the second level cyclone cylinder (212) it is another
One end is connected by upper riser with the three-level cyclone cylinder (213), the other end of the three-level cyclone cylinder (213) with it is described
Category Four cyclone cylinder (214) is connected, and the other end of the Category Four cyclone cylinder (214) is connected with the calcination rotary kiln (22).
9. a kind of production system using aluminium ash production calcium aluminate powder according to claim 6, which is characterized in that described to forge
Rotary kiln (22) are burnt persistently to rotate during calcinations and sintering.
10. a kind of production system using aluminium ash production calcium aluminate powder according to claim 6, which is characterized in that described
System further includes dust-extraction unit (4), and the dust-extraction unit (4) is for eliminating the raw material preparation facilities (1), raw material calcining
The dust generated in device (2) and the clinker processing unit (plant) (3) course of work.
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| CN111137912A (en) * | 2019-12-23 | 2020-05-12 | 广西福斯特再生资源环保科技有限公司 | Method and equipment for producing calcium aluminate raw material for water purifying agent by using industrial waste |
| CN112680564A (en) * | 2020-12-18 | 2021-04-20 | 中南大学 | Method for preparing calcium aluminate steelmaking desulfurizer by melting high magnesium aluminum ash |
| CN113106261A (en) * | 2021-03-16 | 2021-07-13 | 江苏海光金属有限公司 | Production process for processing secondary aluminum ash into aluminum-based material |
| CN114368769A (en) * | 2021-12-08 | 2022-04-19 | 生态环境部华南环境科学研究所 | Production device and production method for preparing calcium aluminate by activating, rotating and melting aluminum ash |
| CN114538489A (en) * | 2022-03-18 | 2022-05-27 | 四川轻化工大学 | Method and system for preparing efficient powdery accelerator from aluminum ash |
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| CN111137912A (en) * | 2019-12-23 | 2020-05-12 | 广西福斯特再生资源环保科技有限公司 | Method and equipment for producing calcium aluminate raw material for water purifying agent by using industrial waste |
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| CN113106261A (en) * | 2021-03-16 | 2021-07-13 | 江苏海光金属有限公司 | Production process for processing secondary aluminum ash into aluminum-based material |
| CN114368769A (en) * | 2021-12-08 | 2022-04-19 | 生态环境部华南环境科学研究所 | Production device and production method for preparing calcium aluminate by activating, rotating and melting aluminum ash |
| CN114368769B (en) * | 2021-12-08 | 2023-07-28 | 生态环境部华南环境科学研究所 | Production device and production method for preparing calcium aluminate by activating, rotating and melting aluminum ash |
| CN114538489A (en) * | 2022-03-18 | 2022-05-27 | 四川轻化工大学 | Method and system for preparing efficient powdery accelerator from aluminum ash |
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