CN110204284A - Aggregate waste residue brickmaking technology - Google Patents
Aggregate waste residue brickmaking technology Download PDFInfo
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- CN110204284A CN110204284A CN201910562201.3A CN201910562201A CN110204284A CN 110204284 A CN110204284 A CN 110204284A CN 201910562201 A CN201910562201 A CN 201910562201A CN 110204284 A CN110204284 A CN 110204284A
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- Prior art keywords
- waste residue
- cement
- aggregate
- aggregate waste
- mixture
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Classifications
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of aggregate waste residue brickmaking technologies, comprising the following steps: S1, obtains aggregate waste residue；S2, aggregate waste residue is crushed into powder-material；S3, the powder-material obtained in step S2 is proportionally mixed with cement plant kiln ash and cement, the mass percent of each component is as follows in mixture: aggregate waste residue 75%-77%, cement plant kiln ash 9%-11%, cement 10%-13%；S4, into mixture, the water of the 0.5-1% of addition mixture total mass is stirred；S5, the material that is stirred in step S4 is sent into press die molding, is suppressed into adobe；S6, using still kettle steam press maintenance adobe.Aggregate waste residue brickmaking technology of the present invention can effectively utilize aggregate waste residue, reduce outer discharge capacity, and the raw material that brickmaking uses facilitate cement production enterprise extension industry chain all from own cement plant and aggregate preparation plant, form circular economy enterprise.
Description
Technical field
The present invention relates to aggregate comprehensive utilization of tailing, more specifically to a kind of aggregate waste residue brickmaking technology.
Background technique
Since thousands of years, clay brick has played important work in human lives and production as widely used construction material
With, but the development of clay brick is disappeared so that the breaking-up in cultivable soil, the non-renewable energy are excessive
Consumption and environmental pollution are cost.The arable land that annual fired clay brick damages produces clay brick up to 150,000 hectares or more every year
Coal consumption be about 70,000,000 tons, SO2Annual emissions be 980,000 tons, CO2Annual emissions be 1,560,000 tons, they become atmosphere
In one of major pollutants.Country is forbidden to use clay in big and medium-sized cities a more than 170 after having expressly provided in November, 2002
Brick, the substitution building materials for finding clay brick are an important subjects.
Meanwhile the mountain flour amount of aggregate factory discharge is big, wide, is the resource not yet made full use of.The row of China's aggregate mountain flour
It is high-volume synchronous along with aggregate and the development of cement industry to increase.Mountain flour is raised by the release effect of wind-force into atmosphere, and sky is caused
Gas pollution, mountain flour seeps introducing river, lake will cause ground water pollution and channel filling.It therefore, the use of mountain flour brickmaking is to benefit the nation
Favorable to the people good job.And the filters pressing soil of Hubei Yangxin aggregate is a kind of mud cake more containing mountain flour, water content is larger, deals with
It is just more difficult, it there is no mature experience that can use for reference at home.The filters pressing soil of other enterprises generally uses land-fill method, occupies a large amount of
Soil, and have greater environmental impacts.
Summary of the invention
The technical problem to be solved in the present invention is that providing a kind of aggregate waste residue brickmaking technology, aggregate waste residue can be filled
Divide and utilize, produces valuable environment-friendly building materials product.
The technical solution adopted by the present invention to solve the technical problems is: construction aggregate waste residue brickmaking technology, including following
Step:
S1, aggregate waste residue is obtained；
S2, aggregate waste residue is crushed into powder-material；
S3, the powder-material obtained in step S2 is proportionally mixed with cement plant kiln ash and cement, each group in mixture
The mass percent divided is as follows: aggregate waste residue 75%-77%, cement plant kiln ash 9%-11%, cement 10%-13%；
S4, into mixture, the water of the 0.5-1% of addition mixture total mass is stirred；
S5, the material that is stirred in step S4 is sent into press die molding, is suppressed into adobe；
S6, using still kettle steam press maintenance adobe.
In above scheme, the water content of mixture is not more than 15% in the step S3.
In above scheme, still kettle steam pressure keeps pressure: 1.0MPa in the step S6, temperature: 190-200 DEG C, steam pressure
8-10 hours.
Implement aggregate waste residue brickmaking technology of the invention, has the advantages that
1, using the method for the present invention, aggregate waste residue can be effectively utilized, reduces outer discharge capacity.Waste residue 240,000 can be handled every year
Ton saves money 2,160,000 yuan year by 9 yuan/ton of expense calculating of outward transport at present.
2, brick making cost is low, and waste residue only considers transportation cost, dosage 90%, and 3 yuan/ton of comprehensive unit price；Cement presses market price
It calculates, dosage 10%, 400 yuan/ton of unit price, in addition the expenses such as artificial, fuel, water power carry out cost accounting, monolithic standard brick (240*
115*53) overall cost is about 0.25 yuan, compared with other burn-free cement bricks of market, Dinas brickes, sintered clay shale brick (common brick) at
This is low, has preferable economic benefit.
3, the brick product compression strength average value of technique of the invention production is 18MPa, and flexural strength average value is 3MPa,
Meet national standard MU15 standard, compared with the common brick better quality of equivalent standard.
4, the workshop in present invention process is totally-enclosed workshop, dust outlet is reduced, using natural gas as steam pressure
Kettle fuel, no discharge are environmentally protective factory.
5, the raw material that brickmaking of the present invention uses facilitate cement production enterprise all from own cement plant and aggregate preparation plant
Extension industry chain forms circular economy enterprise.
Detailed description of the invention
Fig. 1 is the flow chart of aggregate waste residue brickmaking technology of the present invention.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
As shown in Figure 1, the technical solution adopted by the present invention to solve the technical problems is: the biggish filters pressing soil of water content
The raw material such as waste residue and kiln ash, cement uniformly mix, and the brick body material of various moduluses is molded by the effect of hydraulic press high pressure, then
The quality and performance of brick are improved by still kettle steam pressure.Itself the following steps are included:
1 raw material storing and mixture preparation
1.1 waste residue composition detections
Waste residue to be treated is detected first, measures its chemical component, mainly measurement silica, calcium oxide
Content etc. judges different reaction types by different chemical composition contents.If the potential activities substance such as silica
Content is high, and mainly silico-calcium reacts, and activator is needed to activate；If calcium oxide content is high, for conventional hydrated reaction of cement,
Activator activation is not needed.Yangxin waste residue testing result such as table 1:
Table 1
| Material name | Silica | Aluminium oxide | Iron oxide | Calcium oxide | Moisture content |
| Clod | 16.75 | 4.79 | 2 | 38.32 | 11.5 |
In terms of testing result, calcium oxide content is high, can not have to activator, reaction type is hydrated reaction of cement.
The preparation of 1.2 waste residues
Since Yangxin aggregate is wet processing, i.e., aggregate has recirculated water cleaning, therefore aggregate during processing is broken
Surface is cleaner, but the mountain flour that aggregate surface originally adhered to simultaneously is flush with water also by this mode, in addition there are
The clay that part is attached to aggregate surface when mining also is rinsed, and finally collects to form filters pressing soil mud cake.Due to pressure
The diversity of native mud cake ingredient is filtered, and moisture is still 20% or more after filters pressing, bad outward transport, it is difficult to deal with.
There are two types of the mode that the country disposes this filters pressing soil is general: 1, same court stockyard natural air drying is deposited in, wait contain
Water transports outward landfill after reducing；2, it is discharged by connecting rivers irrigation canals and ditches.Both modes all polluted environment, improve place
It is set to this, it is hard to carry in today that Environmental Protection Situation is increasingly severe.
When producing portland-type cement clinker with rotary kiln, the dust of kiln tail discharge is flowed into gas, is collected through dust collection device
Resulting dried powder, referred to as rotary kiln ash (abbreviation kiln ash).Kiln ash is also a kind of solid waste, generally can be by place
Reason, re-using becomes cement producting material.Kiln ash is the powder of a kind of lark or taupe, and hygroscopicity is very strong.Pass through water
Stall ash and the higher filters pressing soil mixing of water content, can quickly reduce the water content of mixture, furthermore kiln ash is applied to non-burning brick
In, help to improve non-burning brick intensity.
In the present invention, the kiln ash that filters pressing soil and cement plant dispatch from the factory is sufficiently stirred, it is bibulous using kiln ash
Feature, rapidly drops to the moisture of mixture within 15%, is transported to factories stockyard through lorry, is sent with load wagon to material feeding
Bucket obtains granular material, then loaded vehicle is sent to heap canopy after belt feeder is sent into composite vertical crusher dusting processing, by
Load wagon is poured into proportioning machine waste residue storage hopper and is stored for use.
The storage of 1.3 cement
The cement used is Yangxin cement plant P.O42.5 cement, and from Yangxin, cement station-service bulk cement tanker is transported in factory,
With stored for future use in the cement bin by pneumatic conveying to proportioning building.
The stirring of 2 ingredients
The raw material being stored in proportioning machine storage hopper, by belt conveyor after respective belt feeder is sent into metering hopper metering
It send to stand-by in storage hopper on blender, is stored in the powder of cement bin by proportioning building, (it is special not to be added according to 13% ratio
Modifying agent) it requires to be fed by screw conveyor, it is stand-by after metering hopper metering.By the storing on blender when starting to produce
Bucket, cement-weighting scale sequence material is successively discharged into blender, after dry stirring 1 minute, add the water in water weigher
Continuing to stir, mixture is sent into aging bunker through belt feeder after stirring 2 minutes, and assembly time about 10 minutes.The mixture being aged
Moulding press hopper is sent into belt feeder again.
3 green brick formings
Mixture is fed press die by moulding press hopper, is compressed into as adobe, every time 36 pieces of molding, molding cycle
About 12~14 seconds, adobe was sent through press feed belt machine to stacking machine, and the per car on steam pressure trolley is piled up in adobe by stacking machine
Pile up 1728 pieces.
Host equipment ZY1200A hydraulic brick press machine is directly entered between compacting upper/lower die formed punch using robot clamp hand and is grabbed
Direct code is placed on steam-cured trolley afterwards, is reduced brick folding frame and is transported to belt, material-clearing device, belt transport to all below clamp hand etc.
Too many levels keeps equipment operation more stable, and failure rate reduces, and maintenance cost reduces (vulnerable parts such as brick folding frame air bag), fixed simultaneously
Position precision is more accurate, guarantees that final product quality is without damage.
4 maintenances and storage
Using still kettle steam press maintenance adobe, keep pressure: temperature: 1.0MPa 190-200 DEG C, steam pressure 8-10 hours, reaches
It can dispatch from the factory to early anti pressured intension.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (3)
1. a kind of aggregate waste residue brickmaking technology, which comprises the following steps:
S1, aggregate waste residue is obtained；
S2, aggregate waste residue is crushed into powder-material；
S3, the powder-material obtained in step S2 is proportionally mixed with cement plant kiln ash and cement, each component in mixture
Mass percent is as follows: aggregate waste residue 75%-77%, cement plant kiln ash 9%-11%, cement 10%-13%；
S4, into mixture, the water of the 0.5-1% of addition mixture total mass is stirred；
S5, the material that is stirred in step S4 is sent into press die molding, is suppressed into adobe；
S6, using still kettle steam press maintenance adobe.
2. aggregate waste residue brickmaking technology according to claim 1, which is characterized in that mixture is aqueous in the step S3
Amount is not more than 15%.
3. aggregate waste residue brickmaking technology according to claim 1, which is characterized in that still kettle steam pressure is protected in the step S6
Hold pressure: 1.0MPa, temperature: 190-200 DEG C, steam pressure 8-10 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562201.3A CN110204284A (en) | 2019-06-26 | 2019-06-26 | Aggregate waste residue brickmaking technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562201.3A CN110204284A (en) | 2019-06-26 | 2019-06-26 | Aggregate waste residue brickmaking technology |
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| Publication Number | Publication Date |
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| CN110204284A true CN110204284A (en) | 2019-09-06 |
Family
ID=67794696
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|---|---|---|---|
| CN201910562201.3A Pending CN110204284A (en) | 2019-06-26 | 2019-06-26 | Aggregate waste residue brickmaking technology |
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| CN (1) | CN110204284A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592337A (en) * | 2020-04-30 | 2020-08-28 | 日昌升建筑新材料设计研究院有限公司 | Stone powder brick making process |
| CN111592338A (en) * | 2020-04-30 | 2020-08-28 | 日昌升建筑新材料设计研究院有限公司 | Stone powder brick making process |
| CN115611559A (en) * | 2022-09-23 | 2023-01-17 | 华新水泥股份有限公司 | Cement-free environment-friendly baking-free brick and preparation method thereof |
Citations (5)
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|---|---|---|---|---|
| DE20300366U1 (en) * | 2003-01-11 | 2003-04-10 | Rode Andre | Molded brick, used in the building industry, has a smooth surface made from a single casting composition of sand, cement, water and a flow agent |
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2019
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592337A (en) * | 2020-04-30 | 2020-08-28 | 日昌升建筑新材料设计研究院有限公司 | Stone powder brick making process |
| CN111592338A (en) * | 2020-04-30 | 2020-08-28 | 日昌升建筑新材料设计研究院有限公司 | Stone powder brick making process |
| CN115611559A (en) * | 2022-09-23 | 2023-01-17 | 华新水泥股份有限公司 | Cement-free environment-friendly baking-free brick and preparation method thereof |
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