CN109851287A - A kind of fly ash autoclaved brick processing process - Google Patents
A kind of fly ash autoclaved brick processing process Download PDFInfo
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- CN109851287A CN109851287A CN201910207562.6A CN201910207562A CN109851287A CN 109851287 A CN109851287 A CN 109851287A CN 201910207562 A CN201910207562 A CN 201910207562A CN 109851287 A CN109851287 A CN 109851287A
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- fly ash
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Abstract
The present invention relates to a kind of fly ash autoclaved brick processing process of fly ash autoclaved brick production field, including step 1, pretreatment of raw material processes；Glass, casting model powder, shot, rejected product are sent into pulverizer and carry out grinding, improves its activity；The sludge containing calcirm-fluoride is sent to dryer again and carries out drying and processing, while keeping the temperature centainly dried, dust G1, drying exhaust gas G2 and equipment running noises N1 can be generated in this preprocessing process；The invention can promote the cyclic utilization of waste, reduce the production cost of enterprise, reduce other secondary pollutions such as noise while reducing pollution, improve the intensity and its useful life longevity of refined flyash steam-pressing brisk, extend service life, improve work efficiency.
Description
Technical field
The present invention relates to fly ash autoclaved brick processing process a kind of in fly ash autoclaved brick production field.
Background technique
Fly ash autoclaved brick refers to using flyash, lime or cement as primary raw material, adds proper amount of gypsum and gathers materials through mixed
Flyash brick made of the preparation of conjunction material, compression moulding, high pressure or ordinary pressure curing or natural curing；It is main with flyash, lime
Raw material adds and proper amount of gypsum and gathers materials, through made of embryo material preparation, compression moulding, autoclave curing, abbreviation flyash brick；
Flyash brick, which has, exempts from fly ash autoclaved brick and two kinds of steam-cured fly ash brick；Fly ash autoclaved brick refers to be made through autoclave curing
Flyash brick；Steam-cured fly ash brick refers to flyash brick made of steam curing under normal pressure；The raw material of both bricks and
Manufacturing process is essentially the same, and only the maintaining process of the two is different, while having different performances；Fly ash autoclaved brick is to be saturated
(vapor (steam) temperature makes the active component part in brick in 174.5 DEG C or more, operating pressure maintenance in 0.8MPa or more) to vapour pressure
Hydro-thermal reaction is sufficiently carried out, therefore the intensity of brick is high, performance tends towards stability；In the prior art, number of patent application is
201610427458 .4, the applying date are 2016 .06 .17, and application publication number is 106082940 A of CN, and data of publication of application is
2016.11.09 a kind of fly ash autoclaved brick and preparation method thereof, the fly ash autoclaved brick ingredient includes air entrained concrete
Building block waste material, mountain flour, carbide slurry, flyash.Wherein mass fraction of each component in fly ash autoclaved brick is as follows: 35-45 matter
Measure the air-entrained concrete building block waste material of number, the mountain flour of 20-30 mass fraction, the carbide slurry of 10-20 mass fraction, 15-25 matter
Measure the flyash of number；(1) it will be mixed after air-entrained concrete building block waste material, mountain flour, carbide slurry, flyash metering proportion first
It closes, it is stand-by to be ground into mixture for wheel after mixing evenly；(2) above-mentioned mixture is entered into Full Automatic Liquid brick machine and is pressed into adobe, put
Enter and is parked between resting for use；(3) above-mentioned adobe is sent into vapor (steam) temperature at 174 .5 DEG C or more, operating pressure 0 .8MPa with
On still kettle carry out autoclave curing, steam curing 10-12 hour is for use；(4) steam-pressing brisk is neatly deposited in heap after going out kettle
Field is parked, and after parking the stabilization of contraction in 1~2 week, detection intensity qualification is finished product after parking 1 day；This method prepares fly-ash steaming
The process of pressure brick can generate pollution, and cannot recycle and be utilized.
Summary of the invention
The object of the present invention is to provide a kind of fly ash autoclaved brick processing process, which can promote following for waste
Ring utilizes, and reduces the production cost of enterprise, reduces other secondary pollutions such as noise while reducing pollution, improves finished product fine coal
The intensity and its useful life longevity of grey steam-pressing brisk, extend service life, improve work efficiency.
The object of the present invention is achieved like this:
Including step 1, pretreatment of raw material process；Glass, casting model powder, shot, rejected product are sent into pulverizer and carry out powder
Mill improves its activity；Sludge containing calcirm-fluoride is sent to dryer again and carries out drying and processing, while keeping centainly drying
Temperature can generate dust G1, drying exhaust gas G2 and equipment running noises N1 in this preprocessing process；
Including step 2, burden process；It will carry out pretreated raw material and carry out metering proportion, according to following ratio: flyash
32%-34%, glass 6%-8%, calcirm-fluoride 16%-19%, casting model powder 32%-34%, cement 9%-12%, shot 1%-3% and its 4%-8%
Rejected product is arranged in pairs or groups；Further according to the actual collocation dosage for requiring to adjust various material, it is ensured that finished product hardness, intensity and durable
Property, ingredient dust G3 is generated in this blending process；
Including step 3, agitating procedure；According to being entered directly into blending bucket after metering proportion, homogeneous is carried out in blending bucket and is stirred
It mixes, in whipping process, mixture is all mixed into the various components of fly ash autoclaved brick, Er Qie in any part of its stacking volume
Any part is also kept identical in manufacturing procedure later；Stirring dust G4 and its equipment running noises are generated in the process
N2；
Including step 4, digestion fusion process；It is stood by the raw material to be produced after agitating procedure, during standing
Above-mentioned mixed raw material is adequately cleared up, it is ensured that is merged between each raw material, is formed convenient for subsequent handling；
Including step 5, compression moulding process；By the compacting of brick machine, will carry out digesting outside fused mixed raw material progress
It is molded, it is outer it is molded after shifted again, it is damaged to generate brick body in transfer process, then regathers damaged brick again
Secondary crushing utilizes；
Including step 6, active constituent in raw material is issued raw hydration reaction in vapor action, promotes product by steam curing process
Middle hydrated product fiber posts hydrated calcium silicate CSH(B), open up Bo Molai stone (C4S5H5), hard calcium silicates (CSHO.33) these aquations
The increasing of product assay, crystal increase, and unformed hydrated product is reduced, and enhance the intensity and durability of product, generate one
Determine the hydrated product of intensity；
Including step 7, inspection process, product is after steam curing, artificial inspection, by broken fly ash autoclaved brick recycling
To pretreatment of raw material process, recycling；
Including step 8, finished product process, fly ash autoclaved brick is stored after steam pressure in product stockyard, is gone out after the assay was approved
Factory uses, the rejected product of generation remanufacture again again, generation that the process is pollution-free.
When the invention works, pretreatment of raw material process；By glass, casting model powder, shot, rejected product be sent into pulverizer in into
Row grinding improves its activity；The sludge containing calcirm-fluoride is sent to dryer again and carries out drying and processing, while keeping certain and drying
Dry temperature can generate dust G1, drying exhaust gas G2 and equipment running noises N1 in this preprocessing process；Burden process；It will
It carries out pretreated raw material and carries out metering proportion, according to following ratio: flyash 32%-34%, glass 6%-8%, calcirm-fluoride
16%-19%, casting model powder 32%-34%, cement 9%-12%, shot 1%-3% and its 4%-8% rejected product arrange in pairs or groups；Further according to
The actual collocation dosage for requiring to adjust various material, it is ensured that finished product hardness, intensity and durability generate in this blending process and match
Feed powder dirt G3；Agitating procedure；According to being entered directly into blending bucket after metering proportion, homogeneous stirring is carried out in blending bucket, is stirred
During mixing, mixture is all mixed into the various components of fly ash autoclaved brick in any part of its stacking volume, and later
Manufacturing procedure in any part also keep identical；Stirring dust G4 and its equipment running noises N2 is generated in the process；Disappear
Change fusion process；It is stood by the raw material to be produced after agitating procedure, above-mentioned mixed raw material is abundant during standing
Resolution, it is ensured that merged between each raw material, formed convenient for subsequent handling；Compression moulding process；Pass through brick machine
Compacting, will carry out digesting fused mixed raw material carry out it is outer molded, it is outer it is molded after shifted again, produced in transfer process
Raw brick body is damaged, then regathers damaged brick and crushes utilization again；Steam curing process, by active constituent in raw material
Issue raw hydration reaction in vapor action, promote hydrated product fiber posts hydrated calcium silicate CSH(B in product), open up Bo Molai stone
(C4S5H5), the increasing of hard calcium silicates (CSHO.33) these hydrated product contents, crystal increase, unformed hydrated product is reduced,
The intensity and durability of product are enhanced, the hydrated product of some strength is generated；Inspection process, product after steam curing,
Artificial inspection, by broken fly ash autoclaved brick recycling to pretreatment of raw material process, recycling；Finished product process, flyash
Steam-pressing brisk is stored after steam pressure in product stockyard, and factory uses after the assay was approved, and the rejected product of generation returns again again
Midwifery produces, generation that the process is pollution-free.
The beneficial effects of the present invention are, which can promote the cyclic utilization of waste, the production cost of enterprise is reduced,
Other secondary pollutions such as noise are reduced while reducing pollution, improve the intensity of refined flyash steam-pressing brisk and its using durable
Property, service life is extended, is improved work efficiency.
As a further improvement of the present invention, to guarantee the finished product intensity with higher produced, keeping persistence,
Generate the hydrated product with some strength；Equipment in the step 6 for conserving fly ash autoclaved brick is still kettle；Institute
State still kettle include it is quiet stop room, the fly ash autoclaved brick stops that room is quiet to stop 1.5h-2.5h quiet, quiet to stop -60 DEG C of temperature 50 C, rises
Warm rate fly ash autoclaved brick in first hour of heating is not to be exceeded 100 DEG C, and warming temperature is greater than 179 DEG C, constant temperature and pressure
1.5-1.6MPa, cooling rate keep out kettle temperature difference less than 80 DEG C, keep Temperature fall.
Detailed description of the invention
Fig. 1 is main view of the invention.
Specific embodiment
As shown in Figure 1, the object of the present invention is achieved like this:
Including step 1, pretreatment of raw material process；Glass, casting model powder, shot, rejected product are sent into pulverizer and carry out powder
Mill improves its activity；Sludge containing calcirm-fluoride is sent to dryer again and carries out drying and processing, while keeping centainly drying
Temperature can generate dust G1, drying exhaust gas G2 and equipment running noises N1 in this preprocessing process；
Including step 2, burden process；It will carry out pretreated raw material and carry out metering proportion, according to following ratio: flyash
32%-34%, glass 6%-8%, calcirm-fluoride 16%-19%, casting model powder 32%-34%, cement 9%-12%, shot 1%-3% and its 4%-8%
Rejected product is arranged in pairs or groups；Further according to the actual collocation dosage for requiring to adjust various material, it is ensured that finished product hardness, intensity and durable
Property, ingredient dust G3 is generated in this blending process；
Including step 3, agitating procedure；According to being entered directly into blending bucket after metering proportion, homogeneous is carried out in blending bucket and is stirred
It mixes, in whipping process, mixture is all mixed into the various components of fly ash autoclaved brick, Er Qie in any part of its stacking volume
Any part is also kept identical in manufacturing procedure later；Stirring dust G4 and its equipment running noises are generated in the process
N2；
Including step 4, digestion fusion process；It is stood by the raw material to be produced after agitating procedure, during standing
Above-mentioned mixed raw material is adequately cleared up, it is ensured that is merged between each raw material, is formed convenient for subsequent handling；
Including step 5, compression moulding process；By the compacting of brick machine, will carry out digesting outside fused mixed raw material progress
It is molded, it is outer it is molded after shifted again, it is damaged to generate brick body in transfer process, then regathers damaged brick again
Secondary crushing utilizes；
Including step 6, active constituent in raw material is issued raw hydration reaction in vapor action, promotes product by steam curing process
Middle hydrated product fiber posts hydrated calcium silicate CSH(B), open up Bo Molai stone (C4S5H5), hard calcium silicates (CSHO.33) these aquations
The increasing of product assay, crystal increase, and unformed hydrated product is reduced, and enhance the intensity and durability of product, generate one
Determine the hydrated product of intensity；
Including step 7, inspection process, product is after steam curing, artificial inspection, by broken fly ash autoclaved brick recycling
To pretreatment of raw material process, recycling；
Including step 8, finished product process, fly ash autoclaved brick is stored after steam pressure in product stockyard, is gone out after the assay was approved
Factory uses, the rejected product of generation remanufacture again again, generation that the process is pollution-free.
Equipment in the step 6 for conserving fly ash autoclaved brick is still kettle；The still kettle include it is quiet stop room,
The fly ash autoclaved brick stops that room is quiet to stop 1.5h-2.5h quiet, quiet to stop -60 DEG C of temperature 50 C, heating rate in heating first
Fly ash autoclaved brick is not to be exceeded 100 DEG C in hour, and warming temperature is greater than 179 DEG C, constant temperature and pressure 1.5-1.6MPa, cooling rate
It keeps out kettle temperature difference less than 80 DEG C, keeps Temperature fall.
When the invention works,
Pretreatment of raw material process；Glass, casting model powder, shot, rejected product are sent into pulverizer and carry out grinding, improves its work
Property；The sludge (moisture content 50%-80%) containing calcirm-fluoride is sent to dryer again and carries out drying and processing, drying temperature 700
℃-800℃；Dust G1, drying exhaust gas G2 and equipment running noises N1 can be generated in this preprocessing process；
Burden process；It will carry out pretreated raw material and carry out metering proportion, according to following ratio: flyash 32%-34%, glass
The rejected product progress of 6%-8%, calcirm-fluoride 16%-19%, casting model powder 32%-34%, cement 9%-12%, shot 1%-3% and its 4%-8%
Collocation；Further according to the actual collocation dosage for requiring to adjust various material, it is ensured that finished product hardness, intensity and durability, in this ingredient
Ingredient dust G3 is generated in the process；
Agitating procedure；According to entering directly into blending bucket after metering proportion, homogeneous stirring, whipping process are carried out in blending bucket
In, mixture is all mixed into the various components of fly ash autoclaved brick in any part of its stacking volume, and in processing later
Any part is also kept identical in process；Stirring dust G4 and its equipment running noises N2 is generated in the process；
Digestion fusion process；It is stood by the raw material to be produced after agitating procedure, above-mentioned mixing is former during standing
Material adequately resolution, it is ensured that merged between each raw material, formed convenient for subsequent handling；
Compression moulding process；By the compacting of brick machine, will carry out digesting fused outer molded, the external pressure of mixed raw material progress
It is shifted again after molding, brick body breakage is generated in transfer process, then damaged brick is regathered and crushes utilization again；
Active constituent in raw material is issued raw hydration reaction in vapor action, promotes hydrated product in product by steam curing process
Fiber posts hydrated calcium silicate CSH(B), open up Bo Molai stone (C4S5H5), hard calcium silicates (CSHO.33) these hydrated product contents
Increase, crystal increase, unformed hydrated product reduces, enhances the intensity and durability of product, generate the water of some strength
Change product；Fly ash autoclaved brick stops that room is quiet to stop 1.5h-2.5h quiet, it is quiet stop -60 DEG C of temperature 50 C and keep it is damp and hot it is quiet stop, heat up
Rate fly ash autoclaved brick in first hour of heating is not to be exceeded 100 DEG C, and warming temperature is greater than 179 DEG C, constant temperature and pressure
1.5-1.6MPa, cooling rate keep out kettle temperature difference less than 80 DEG C, keep Temperature fall；
Inspection process, product is after steam curing, artificial inspection, by broken fly ash autoclaved brick recycling to pretreatment of raw material
Process, recycling；
Finished product process, fly ash autoclaved brick are stored after steam pressure in product stockyard, and factory uses after the assay was approved, are generated
Rejected product remanufacture again again, generation that the process is pollution-free；
The waste water and gas G1 generated in step 1 is that glass crushes the leftover pieces generated, glass dust is generated when being crushed, so
Continued emissions are carried out by fiber bag precipitator afterwards；The efficiency of dust-removal cloth-bag is 95%, and remaining glass dust passes through higher row
Inflator is discharged, and extra dust settles in workshop, is periodically recycled；Ingredient dust G3 and stirring dust G4 Dust Capacity compared with
Small, by pointing out the seamless installation gas collecting apparatus in top in the generation of agitating device exhaust gas, gas sampling rate is greater than 90%, passes through cloth bag
Deduster discharges in a organized way, part dust can the loss in workshop because water content is high when stirring, in non-collection part
80% can settle rapidly and be stopped by workshop, then periodically carry out processing recycling；Drying exhaust gas G2 is that calcium fluoride sludge drying is useless
Gas carries out heating, drying to calcium fluoride sludge (moisture content 50%-80%) using monotubular rotary dryer, and drying course generates dust
And calcirm-fluoride dust accounts for the 0.1 ‰ of output, so cooperating bag pulse dedusting, and organized row using gas-water separation
It puts；Can have in the noise N2 of the step 1 noise N1 generated and step 3 generation by installing sound-proof material additional or building soundproof wall
Effect avoids.
Claims (2)
1. a kind of fly ash autoclaved brick processing process, which is characterized in that
Including step 1, pretreatment of raw material process；Glass, casting model powder, shot, rejected product are sent into pulverizer and carry out powder
Mill improves its activity；Sludge containing calcirm-fluoride is sent to dryer again and carries out drying and processing, while keeping centainly drying
Temperature can generate dust G1, drying exhaust gas G2 and equipment running noises N1 in this preprocessing process；
Including step 2, burden process；It will carry out pretreated raw material and carry out metering proportion, according to following ratio: flyash
32%-34%, glass 6%-8%, calcirm-fluoride 16%-19%, casting model powder 32%-34%, cement 9%-12%, shot 1%-3% and its 4%-8%
Rejected product is arranged in pairs or groups；Further according to the actual collocation dosage for requiring to adjust various material, it is ensured that finished product hardness, intensity and durable
Property, ingredient dust G3 is generated in this blending process；
Including step 3, agitating procedure；According to being entered directly into blending bucket after metering proportion, homogeneous is carried out in blending bucket and is stirred
It mixes, in whipping process, mixture is all mixed into the various components of fly ash autoclaved brick, Er Qie in any part of its stacking volume
Any part is also kept identical in manufacturing procedure later；Stirring dust G4 and its equipment running noises are generated in the process
N2；
Including step 4, digestion fusion process；It is stood by the raw material to be produced after agitating procedure, during standing
Above-mentioned mixed raw material is adequately cleared up, it is ensured that is merged between each raw material, is formed convenient for subsequent handling；
Including step 5, compression moulding process；By the compacting of brick machine, will carry out digesting outside fused mixed raw material progress
It is molded, it is outer it is molded after shifted again, it is damaged to generate brick body in transfer process, then regathers damaged brick again
Secondary crushing utilizes；
Including step 6, active constituent in raw material is issued raw hydration reaction in vapor action, promotes product by steam curing process
Middle hydrated product fiber posts hydrated calcium silicate CSH(B), open up Bo Molai stone (C4S5H5), hard calcium silicates (CSHO.33) these aquations
The increasing of product assay, crystal increase, and unformed hydrated product is reduced, and enhance the intensity and durability of product, generate one
Determine the hydrated product of intensity；
Including step 7, inspection process, product is after steam curing, artificial inspection, by broken fly ash autoclaved brick recycling
To pretreatment of raw material process, recycling；
Including step 8, finished product process, fly ash autoclaved brick is stored after steam pressure in product stockyard, is gone out after the assay was approved
Factory uses, the rejected product of generation remanufacture again again, generation that the process is pollution-free.
2. a kind of fly ash autoclaved brick processing process according to claim 1, it is characterised in that: the step 6
In for conserve fly ash autoclaved brick equipment be still kettle；The still kettle include it is quiet stop room, the fly ash autoclaved brick exists
It is quiet to stop that room is quiet to stop 1.5h-2.5h, quiet to stop -60 DEG C of temperature 50 C, heating rate fly ash autoclaved brick in first hour of heating
100 DEG C are not to be exceeded, warming temperature is greater than 179 DEG C, and constant temperature and pressure 1.5-1.6MPa, cooling rate keeps out kettle temperature difference less than 80
DEG C, keep Temperature fall.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112851231A (en) * | 2021-01-16 | 2021-05-28 | 娄城环保(苏州)有限公司 | Cement-based dry and hard concrete using calcium fluoride sludge as aggregate |
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Application publication date: 20190607 |