CN106986592A - A kind of method of alkaline residue making brick from sludge - Google Patents
A kind of method of alkaline residue making brick from sludge Download PDFInfo
- Publication number
- CN106986592A CN106986592A CN201710195603.5A CN201710195603A CN106986592A CN 106986592 A CN106986592 A CN 106986592A CN 201710195603 A CN201710195603 A CN 201710195603A CN 106986592 A CN106986592 A CN 106986592A
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- Prior art keywords
- brick
- alkaline residue
- flyash
- water
- alkaline
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Classifications
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0481—Other specific industrial waste materials not provided for elsewhere in C04B18/00
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of method of alkaline residue making brick from sludge, CL contents are higher in alkaline residue, and the application of the technology such as production Portland cement, production alkaline residue brick, alkaline dregs and packing is restricted.White clay desulfurization is then also easy to produce secondary pollution.The invention provides a kind of method of alkaline residue making brick from sludge, comprise the following steps：Feedstock treating：Original state alkaline residue is entered into water-filling flushing processing, with the flyash in 5mm sieve warehouse；Batch mixing and shaping：To be sent in mixer after alkaline residue after Feedstock treating step, flyash, Portland clinker, natural river sand grinding and add amount of water, be sent to after stirring brick machine shake it is molded；Stockyard is conserved.The technique is simple, it is only necessary to proportioning machine, mixer, belt conveyor, a series of equipment of brickmaking machine.Different mould equipments are changed, solid brick free of calcining and steam curing, porous brick, building-block, floor tile, curb brick, grass-planting brick, revetment brick, the enclosure wall rail post of different size can be produced.
Description
Technical field
The invention belongs to alkaline residue processing method, more particularly to a kind of method of alkaline residue making brick from sludge.
Background technology
Soda ash is widely used in metallurgy, chemical industry, building materials, papermaking, medicine, food etc. as important basic chemical industry raw material
Industry.In recent years, China's soda manufacture is quickly grown, and annual production capacity is more than 800,000 tons, wherein ammonia-soda process soda ash year production
Ability is 4,500,000 tons or so.In ammonia-soda process alkali producing process, substantial amounts of waste liquid is produced in ammonia distillation process, waste liquid is produced after press filtration
Raw alkaline residue is commonly called as white clay, and alkaline residue is the waste residue using calcium salts such as CaCO3, CaSO4, CaCl2 as main component, also containing SiO2 etc.
Composition.General large-scale soda plant's annual production is more than 500,000 tons, and 300 ~ 350 tons of white clays can be produced by often producing 1 ton of soda ash, every year
Produce about 180,000 tons of white clay.Due to that can not handle, substantial amounts of white clay is stacked naturally, or directly arranges sea.The white clay stacked for a long time
Substantial amounts of land resource is occupied, and its surface weathering produces dust pollution；White clay row Hai Ze causes marine ecology balance to be broken
It is bad, aquaculture is endangered, and also deposition is later it is also possible to jeopardize navigation channel.Therefore, the pollution problem of white clay governs pure always
The further development of alkali enterprise, is a big technical barrier of ammonia alkali factory.
The pollution problem of white clay governs the development of soda ash enterprise always, is a big technical barrier of ammonia alkali factory.According to white
Mud ingredient properties and hazard analysis, are summarized and have been commented to the white clay resource treatment technique developed in recent years.Due to white
CL contents are higher in mud, production Portland cement, production alkaline residue brick, alkaline dregs and packing, motar processed,
The application of the technologies such as rubbish and white clay mixed processing is restricted；White clay desulfurization is then also easy to produce secondary pollution；Simultaneously because white clay
Yield is huge, and the amount of every kind of method processing white clay is limited, therefore, and a kind of ripe effective white clay is still lacked at present and integrates profit
Use technology.Efficiently solve this problem, it is necessary to from multidisciplinary angle, from the number of ways comprehensive regulation, progressively to disappear
Except white clay harm.
The content of the invention
Technical problem to be solved：
White clay（Alkaline residue）Pollution problem govern the development of soda ash enterprise always.CL contents are higher in white clay, produce ordinary silicon
The technology such as acid salt cement, production alkaline residue brick, alkaline dregs and packing, motar processed, rubbish and white clay mixed processing
Using being restricted.White clay desulfurization is then also easy to produce secondary pollution.
Technical scheme：
In order to solve problem above, the invention provides a kind of method of alkaline residue making brick from sludge, comprise the following steps：At raw material
Reason：Original state alkaline residue is entered into water-filling flushing processing, with the flyash in 5mm sieve warehouse；Batch mixing and shaping：By Feedstock treating
It is sent to after alkaline residue, flyash, Portland clinker, natural river sand grinding after step in mixer and adds amount of water,
Be sent to after stirring brick machine shake it is molded；Stockyard is conserved.
In Feedstock treating step, the moisture control of flyash is in 8%-12%.
In batch mixing and forming step, when raw material is had just enter into mixer, adding water makes material arrange moisture content in 8%-12%
Left and right, being added water after stirring makes material overall moisture content in 45%-50%, continues to stir feeding brick machine after certain time and shakes pressure
Shaping.
It is described shake it is molded in, briquetting pressure is in 18MPa-22MPa.
Described certain time is -35 minutes 25 minutes.
Alkaline residue, flyash, Portland clinker, the mass ratio of natural river sand are 25-35：45-55：10-20：5-15.
Stockyard maintenance method be：By the adobe of shaping be transported to stockyard stack, first day will shaping idiosome place with it is closed
Maintenance is dried in drying plant；Start within second day idiosome being deposited in stockyard and periodically supported toward spraying water on idiosome into water-filling
Shield；Adobe is covered with straw screen or mat, reed mat, gunnysack, sawdust, wet soil and damp sand within 8th day to 28 days, and holding of often watering
Moistening carries out natural curing.
Change different mould equipments, can produce the hollow block of different size, porous brick, solid slug, floor tile, curb brick,
Grass-planting brick, enclosure wall rail post.
Waste residue, the flyash that described alkaline residue is discharged when being industrial soda plant's alkaline refer to what is discharged after thermal power plant boiler fire coal
One kind or two kinds of mixing in lime-ash.
Beneficial effect：
Flyash/alkaline residue brick largely utilizes industrial waste flyash and alkaline residue, and the utility of solid waste is returned
Receive makes its nonuseable part reach innoxious, minimizing while utilization, has both alleviated pollution of the industrial residue to environment, has been existing again
Generation, which builds, provides building material, and the brick intensity made reaches national building brick standard, with turning harm into good, be readily produced,
Selection is flexible, cement consumption is small, low manufacture cost, good product effect the characteristics of.Social benefit so can be not only improved, is accomplished
Make the best use of everything, and obtain certain economic benefit, while reaching the purpose of environmental protection.
Embodiment
Come that the present invention is described in detail below.
The present invention is with flyash and pretreated alkaline residue（White clay）For primary raw material, other auxiliary materials, auxiliary material one are proportionally added into
As bag flyash, river sand, early strength agent, quick lime etc..Alkaline residue brick can be prepared.
The invention provides a kind of method of alkaline residue making brick from sludge, comprise the following steps：Feedstock treating：Original state alkaline residue is entered
Water-filling flushing is handled, with the flyash in 5mm sieve warehouse；Batch mixing and shaping：By the alkaline residue after Feedstock treating step, powder
It is sent to after coal ash, Portland clinker, natural river sand grinding in mixer and adds amount of water, is sent to after stirring
Brick machine shakes molded；Stockyard is conserved.
In Feedstock treating, original state alkaline residue is entered into CaCl in water-filling flushing processing, reduction alkaline residue2, the soluble thing such as NaCl
The content of matter, by CaCO3 etc.Insoluble matter, which is filtered out, does dewater treatment, with the flyash in 5mm sieve warehouse, remove grass roots and
Debris.Flyash moisture content is determined, general control is 10% or so.
Because white clay itself soluble chloride content is higher, product is set to be also easy to produce sternly in traditional white clay process for reclaiming
The scum phenomenon of weight, reduces the practical value of product.This technique makes original state alkaline residue progress pretreating process solvable in alkaline residue
Property calcium chloride and sodium chloride taken away with water compared to direct using being not in because the product that soluble chloride is caused is asked
Topic, can improve product quality.
In batch mixing and shaping, will each raw material measure after enter mill grinding, with belt conveyor by flyash, cement, alkaline residue
In natural river sand feeding mixer, supplement amount of water ensures the overall moisture content of material 10% or so, and stirring is carried for 10 minutes
The uniformity coefficient of high compound, if mixture uniformity is poor, some places that have in compound that are bound to do not have cementing agent not yet
Can occur after hydration reaction, portland cement mixing water, four kinds of main clinker minerals react with water, and some places cementing agent is rich
Collection, these Free Cas (OH)2The structure of brick, which can be destroyed, causes the homogeneity of brick to be deteriorated, and intensity can not also be guaranteed.It is dry uniform
Add water afterwards enable material overall moisture content 50 or so this improve the plasticity of mix material, improve the processability of base substrate, stir
Mix after 30 minutes send into brick machine shake it is molded, control briquetting pressure is reached after 20MPa or so, brick finished product it is most high-strength
Degree.
In being conserved in stockyard, the adobe of shaping is transported to stockyard and stacked, placed shaping idiosome and close drying within first day
Maintenance is dried in workshop.Idiosome was deposited in stockyard periodically toward water spray progress water curing on idiosome in second day, to allow water
Part fully absorb, but can not moisture content it is excessive.So conserve a week.8th day to 28 days with straw screen or mat, reed mat, fiber crops
The appropriate material such as bag, sawdust, wet soil and damp sand covers adobe, and holding moistening of often watering carries out natural curing.
With it is traditional non-burning brick steam-cured（Temperature is less than 100 DEG C, is conserved in atmospheric steam）Compare, this handicraft product takes off
After mould under the conditions of normal temperature and pressure moisturizing natural curing or bedding plastic foil receive solar energy optical-thermal heating moisture-keeping maintaining 28 days with
Go up to obtain finished product
The technique is simple, it is only necessary to proportioning machine, mixer, belt conveyor, a series of equipment of brickmaking machine.Change different mould machines
Tool, can produce solid brick free of calcining and steam curing, porous brick, building-block, floor tile, curb brick, grass-planting brick, the bank protection of different size
Brick, enclosure wall rail post.And waste residue, the flyash that described alkaline residue is discharged when being industrial soda plant's alkaline refer to thermal power plant boiler combustion
One kind or two kinds of mixing in the lime-ash discharged after coal.
Although the present invention disclosed as above with preferred embodiment, they be not for limit the present invention, it is any ripe
This those skilled in the art is practised, without departing from the spirit and scope of the invention, can make various changes or retouch from working as, therefore the guarantor of the present invention
What shield scope should be defined by claims hereof protection domain is defined.
Claims (9)
1. a kind of method of alkaline residue making brick from sludge, comprises the following steps：Feedstock treating：Original state alkaline residue is entered into water-filling flushing processing,
With the flyash in 5mm sieve warehouse；Batch mixing and shaping：By the alkaline residue after Feedstock treating step, flyash, silicate cement
It is sent to after mud clinker, natural river sand grinding in mixer and adds amount of water, is sent to brick machine after stirring and shakes and be pressed into
Type；Stockyard is conserved.
2. the method as described in claim 1, it is characterised in that：In Feedstock treating step, the moisture control of flyash exists
8%-12%。
3. the method as described in claim 1, it is characterised in that：In batch mixing and forming step, raw material is had just enter into mixer
When, adding water makes material arrange moisture content in 8%-12% or so, and being added water after stirring makes material overall moisture content in 45%-50%,
Feeding brick machine shakes molded after continuation stirring certain time.
4. the method as described in claim 1 or 3, it is characterised in that：It is described shake it is molded in, briquetting pressure is in 18MPa-
22MPa。
5. method as claimed in claim 3, it is characterised in that：Described certain time is -35 minutes 25 minutes.
6. the method as described in claim 1, it is characterised in that：Alkaline residue, flyash, Portland clinker, natural river sand
Mass ratio is 25-35：45-55：10-20：5-15.
7. the method as described in claim 1-3,5-6 any claim, it is characterised in that：Stockyard maintenance method be：Will
The adobe of shaping is transported to stockyard stacking, places shaping idiosome within first day and maintenance is dried with close drying workshop；The
Start within two days idiosome being deposited in stockyard periodically toward water spray progress water curing on idiosome；8th day to 28 days with straw screen or mat, reed
Seat, gunnysack, sawdust, wet soil and damp sand cover adobe, and holding moistening of often watering carries out natural curing.
8. the method as described in claim 1, it is characterised in that：Different mould equipments are changed, the hollow building of different size can be produced
Brick, porous brick, solid slug, floor tile, curb brick, grass-planting brick, enclosure wall rail post.
9. the method as described in claim 1, it is characterised in that：It is useless that described alkaline residue is discharged when being industrial soda plant's alkaline
Slag, flyash refer to one kind or two kinds of mixing in the lime-ash discharged after thermal power plant boiler fire coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710195603.5A CN106986592A (en) | 2017-03-29 | 2017-03-29 | A kind of method of alkaline residue making brick from sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710195603.5A CN106986592A (en) | 2017-03-29 | 2017-03-29 | A kind of method of alkaline residue making brick from sludge |
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| Publication Number | Publication Date |
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| CN106986592A true CN106986592A (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710195603.5A Pending CN106986592A (en) | 2017-03-29 | 2017-03-29 | A kind of method of alkaline residue making brick from sludge |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107963860A (en) * | 2017-12-27 | 2018-04-27 | 青岛磊鑫混凝土有限公司 | Wet-mixing plastering mortar |
| CN108083770A (en) * | 2017-12-22 | 2018-05-29 | 柳州市正龙机械制造有限公司 | Directly the method with brickmaking is mixed using wet mud and paper white sludge |
| CN108083744A (en) * | 2017-12-27 | 2018-05-29 | 青岛磊鑫混凝土有限公司 | Without cement pervious concrete brick |
| CN108101461A (en) * | 2017-12-27 | 2018-06-01 | 青岛磊鑫混凝土有限公司 | Wet-mixing masonry mortar |
| CN109570186A (en) * | 2018-10-24 | 2019-04-05 | 湖北云应矿业技术开发有限公司 | A kind of reuse method of soda-manufacturing waste residue liquid and system using this method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083770A (en) * | 2017-12-22 | 2018-05-29 | 柳州市正龙机械制造有限公司 | Directly the method with brickmaking is mixed using wet mud and paper white sludge |
| CN107963860A (en) * | 2017-12-27 | 2018-04-27 | 青岛磊鑫混凝土有限公司 | Wet-mixing plastering mortar |
| CN108083744A (en) * | 2017-12-27 | 2018-05-29 | 青岛磊鑫混凝土有限公司 | Without cement pervious concrete brick |
| CN108101461A (en) * | 2017-12-27 | 2018-06-01 | 青岛磊鑫混凝土有限公司 | Wet-mixing masonry mortar |
| CN108101461B (en) * | 2017-12-27 | 2020-08-04 | 青岛磊鑫混凝土有限公司 | Wet-mixed masonry mortar |
| CN108083744B (en) * | 2017-12-27 | 2020-08-04 | 青岛磊鑫混凝土有限公司 | Non-cement permeable concrete brick |
| CN109570186A (en) * | 2018-10-24 | 2019-04-05 | 湖北云应矿业技术开发有限公司 | A kind of reuse method of soda-manufacturing waste residue liquid and system using this method |
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