CN1539565A - Technical method for manufacturing airbricks from flyash without sintering - Google Patents
Technical method for manufacturing airbricks from flyash without sintering Download PDFInfo
- Publication number
- CN1539565A CN1539565A CNA2003101037359A CN200310103735A CN1539565A CN 1539565 A CN1539565 A CN 1539565A CN A2003101037359 A CNA2003101037359 A CN A2003101037359A CN 200310103735 A CN200310103735 A CN 200310103735A CN 1539565 A CN1539565 A CN 1539565A
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- fly ash
- hollow brick
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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
- C04B28/18—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 mixtures of the silica-lime type
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A non-calcining technology for producing hollow powdered coal ash brick at high speed features that powdered coal ash, aggregate, calcium lime and ardealite are used as its basic raw materials, and the sodium nitrita, sodium sulfate, sodium silicate and triethanolamine are used as its additive. It includes metering, stirring, digestion, grinding, metering, stirring, shaping, and reaction by circulating hot air. Its advantages are simple apparatus, short period and low energy consumption.
Description
The invention provides the process that a kind of unburned knot is produced the fly ash hollow brick fast.
At present, the fly ash hollow brick has obtained extensive use in industry and civil buildings.The fly ash hollow brick is a kind of novel wall construction material that utilizes industrial residues such as flyash, cinder, quick lime, ardealite to produce.The process of traditional mode of production is, with industrial residues such as flyash, cinder, quick lime, ardealites and additive stirs after metering again, digestion, rolling, moulding, again through steam curing finished product; Adopt this process, often need still kettle and steam boiler, equipment investment is bigger, and energy resource consumption is more.The process of existing production changes above-mentioned steam curing into natural curing, i.e. natural curing at normal temperatures and pressures; Adopt this process no doubt to save this process of steam curing, but maintenance often needs tens of days time, even can't produce, thereby cause taking in a large number of place and fund, be unfavorable for large-scale industrial production in the winter of cold.
The objective of the invention is to: on the basis of the process of traditional and existing production flyash brick, improve, work out a kind of process that can under the atmospheric low-temperature condition, produce the fly ash hollow brick fast.
The present invention is achieved in that base stock adopts industrial residues such as flyash, aggregate, quick lime, ardealite.It accounts for whole material's proportion and is respectively: 60～65%, 22～28%, 10～11%, 1.5～2%.Wherein, aggregate can adopt lytag, stone, also can adopt industrial residues such as slag, phosphorus slag, liquid slag, slag; Quick lime can be used replacing carbide slag; Ardealite can replace with land plaster.Additive is composited by inferior sodium nitrate, sodium sulphate, sodium metasilicate, triethanolamine, and it accounts for whole material's proportion and is respectively: 0.1～0.2%, 0.2～0.5%, 0.5～1%, 0.01～0.02%.Base stock and water except that aggregate are carried out the stirring first time after metering in mixer, make various batchings obtain preliminary mixing, activation in the process of stirring; Compound after stirring is sent to the digestion chamber and digests, and makes various weighing areas that preliminary chemical reaction and the relevant physical change of generation take place in the process of digestion; Carry out rolling after the digestion.Compound, aggregate, additive, water after the rolling sent into after metering carry out second time in the mixer and stir, stir for the second time and make the living corresponding chemical reaction of full and uniform hybrid concurrency and the relevant physical change of various batchings, additive; Molding mass after stirring is for the second time sent into the blank that make-up machine is made the fly ash hollow brick; Blank after the moulding is sent into reative cell carry out the hot air circulate reaction, hot-air is supplied with by straight-through circulating hot-blast stove, in this course, hot-air has been created the condition of various weighing area aquations and hydrothermal synthesis reaction, contain multiple strong electrolyte in the additive, have diminishing, early strong and excite the effect of flyash activity, can promote the carrying out of aquation and hydrothermal synthesis reaction, thereby shorten the reaction time; After the hot air circulate reaction finished product.
The invention has the advantages that, compare, saved main equipments such as still kettle, steam boiler, saved equipment investment, reduced energy resource consumption with traditional steam curing manufacturing technique method and existing natural curing manufacturing technique method; The reaction of employing hot air circulate has promoted carrying out smoothly of aquation and hydrothermal synthesis reaction, has shortened the production cycle, has reduced the place and the occupation of capital, helps large-scale industrial production.
The present invention is provided by following embodiment:
This process includes metering, stirring, digestion, rolling, the moulding process program of prior art, and it is made of following each steps in sequence: a, be that flyash, quick lime, ardealite and water carry out first time metering with the base stock except that aggregate; Wherein, quick lime can be used replacing carbide slag, and ardealite can replace with land plaster; Various batchings must and meet respective standard through detection before metering; After b, the metering for the first time compound is sent into mixer and carry out the stirring first time; Make that in this process various batchings obtain preliminary mixing, activation; After c, the stirring for the first time compound being sent into the digestion chamber digests; In this process, preliminary chemical reaction takes place and corresponding physical change takes place in various weighing areas; After d, the digestion compound is sent into edge runner and carry out rolling.After e, wheel are rolled over compound, aggregate, additive, water being carried out the second time measures; Aggregate can adopt lytag, stone, also can adopt industrial residues such as slag, phosphorus slag, liquid slag, slag; Various materials must and meet respective standard through detection before metering for the second time; F, the material after will measuring are sent into and are carried out the second time in the mixer and stir; Multiple strong electrolyte in second time whipping process in the additive, can increase quick lime or carbide slag solubility, activate the silica in flyash or the cinder and the activity of alundum (Al, thereby improve the plasticity of molding mass; Molding mass after g, the stirring is for the second time sent into the blank that make-up machine is made the fly ash hollow brick; After h, the moulding blank is sent into reative cell and carry out the hot air circulate reaction; Hot-air in the reative cell is supplied with by straight-through circulating hot-blast stove; The hot-air that straight-through circulating hot-blast stove produces is by air-introduced machine and carry airduct to send into reative cell, and with the heating that circulates in the straight-through circulating hot-blast stove of the cold air suction in the reative cell; In this course, hot-air has been created the condition of various storeroom aquations and hydrothermal synthesis reaction, increased the concentration of hydroxide ion after the strong electrolyte hydrolysis in the additive, replenished under hydrothermal condition owing to calcium hydroxide is separated out the deficiency that causes hydroxide ion concentration, hydroxide ion and sodium ion make the silicon in the flyash, the silica of aluminum vitreous acts on the sodium metasilicate that generates solubility with it, sodium metasilicate is hydrolyzed into the silicic acid of NaOH and solubility again, reaction again and again so again and again, silica in the compound is transformed into the mensuration dissolubility silicic that lime is had very big activity, generate the hydrated calcium silicate gum material, with lime-ash seed lac knot together, thereby make calcium hydroxide and silicon, the interfacial reaction of aluminum vitreous speeds up, then make blank finish aquation and hydrothermal synthesis reaction in the short period of time, generate hydrated calcium silicate, drated calcium aluminate and aquation calcium sulphoaluminate; After the reaction of i, hot air circulate finished product.
Produce the fly ash hollow brick according to this process, its cost has reduction by a relatively large margin, and its mechanical strength and other physical and mechanical property index also increase.
Claims (5)
1, a kind of unburned knot process of producing the fly ash hollow brick fast.Include metering, stirring, digestion, rolling, moulding process program, it is characterized in that: this process is made of following each steps in sequence:
A, be that flyash, quick lime, ardealite and water carry out first time metering with the base stock except that aggregate;
After b, the metering for the first time compound is sent into mixer and carry out the stirring first time;
After c, the stirring for the first time compound being sent into the digestion chamber digests;
After d, the digestion compound is carried out rolling to send into edge runner;
After e, wheel are rolled over compound, aggregate, additive, water being carried out the second time measures;
F, the material after will measuring are sent into and are carried out the second time in the mixer and stir;
Molding mass after g, the stirring is for the second time sent into the blank that make-up machine is made the fly ash hollow brick;
After h, the moulding blank is sent into reative cell and carry out the hot air circulate reaction;
After the reaction of i, hot air circulate finished product;
2, a kind of unburned knot as claimed in claim 1 process of producing the fly ash hollow brick fast, it is characterized in that: in step a, quick lime can be used replacing carbide slag, and ardealite can replace with land plaster.
3, a kind of unburned knot as claimed in claim 1 process of producing the fly ash hollow brick fast, it is characterized in that: in step e, aggregate can adopt lytag, stone, also can adopt industrial residues such as slag, phosphorus slag, liquid slag, slag.
4, a kind of unburned knot as claimed in claim 1 process of producing the fly ash hollow brick fast is characterized in that: in step h, the hot-air in the reative cell is supplied with by straight-through circulating hot-blast stove.
5, the process of producing the fly ash hollow brick fast as claim 1,4 described a kind of unburned knots, it is characterized in that: in step h, the hot-air that straight-through circulating hot-blast stove produces is by air-introduced machine and carry airduct to send into reative cell, and will heat in the straight-through circulating hot-blast stove of the cold air suction in the reative cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101037359A CN1539565A (en) | 2003-10-27 | 2003-10-27 | Technical method for manufacturing airbricks from flyash without sintering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101037359A CN1539565A (en) | 2003-10-27 | 2003-10-27 | Technical method for manufacturing airbricks from flyash without sintering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1539565A true CN1539565A (en) | 2004-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101037359A Pending CN1539565A (en) | 2003-10-27 | 2003-10-27 | Technical method for manufacturing airbricks from flyash without sintering |
Country Status (1)
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007107111A1 (en) * | 2006-03-23 | 2007-09-27 | Mg Century Mining Corporation | Mg-slag brick with high strength and method for preparing the same |
| CN100400453C (en) * | 2006-09-27 | 2008-07-09 | 彭昊 | Energy-saving environment protection brick and its production process |
| CN101113623B (en) * | 2006-07-26 | 2010-08-18 | 贵州世纪天元矿业有限公司 | Magnesium brick added coal slag and method for making same |
| CN102172968A (en) * | 2011-03-02 | 2011-09-07 | 中国地质大学（武汉） | Process for producing high content phosphor-gypsum baking-free bricks |
| CN102329125A (en) * | 2011-06-24 | 2012-01-25 | 淮阴工学院 | Method for preparing high-strength expanded ceramsite by modification of coal ash with hydrothermal method |
| CN101747016B (en) * | 2008-12-16 | 2013-07-10 | 石河子开发区天富新型建材有限责任公司 | Sintering-free flyash brick |
| CN103232199A (en) * | 2013-05-07 | 2013-08-07 | 石河子大学 | Full waste residue fly ash small hollow block and manufacturing method thereof |
| CN104086149A (en) * | 2014-07-16 | 2014-10-08 | 云南常青树化工有限公司 | Preparation method for phosphogypsum baking-free brick |
| CN107721375A (en) * | 2017-11-16 | 2018-02-23 | 宁波纯恒固废科技有限公司 | A kind of method that sewage treatment plant's dewatered sludge suppresses non-autoclaved and unburned wall bulk |
-
2003
- 2003-10-27 CN CNA2003101037359A patent/CN1539565A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007107111A1 (en) * | 2006-03-23 | 2007-09-27 | Mg Century Mining Corporation | Mg-slag brick with high strength and method for preparing the same |
| US7594964B2 (en) | 2006-03-23 | 2009-09-29 | Mg Century Mining Corporation | High strength magnesium slag brick and method of producing the same |
| CN101113623B (en) * | 2006-07-26 | 2010-08-18 | 贵州世纪天元矿业有限公司 | Magnesium brick added coal slag and method for making same |
| CN100400453C (en) * | 2006-09-27 | 2008-07-09 | 彭昊 | Energy-saving environment protection brick and its production process |
| CN101747016B (en) * | 2008-12-16 | 2013-07-10 | 石河子开发区天富新型建材有限责任公司 | Sintering-free flyash brick |
| CN102172968A (en) * | 2011-03-02 | 2011-09-07 | 中国地质大学（武汉） | Process for producing high content phosphor-gypsum baking-free bricks |
| CN102172968B (en) * | 2011-03-02 | 2012-04-25 | 中国地质大学（武汉） | Process for producing high content phosphor-gypsum baking-free bricks |
| CN102329125A (en) * | 2011-06-24 | 2012-01-25 | 淮阴工学院 | Method for preparing high-strength expanded ceramsite by modification of coal ash with hydrothermal method |
| CN102329125B (en) * | 2011-06-24 | 2013-02-27 | 淮阴工学院 | Method for preparing high-strength expanded ceramsite by modification of coal ash with hydrothermal method |
| CN103232199A (en) * | 2013-05-07 | 2013-08-07 | 石河子大学 | Full waste residue fly ash small hollow block and manufacturing method thereof |
| CN104086149A (en) * | 2014-07-16 | 2014-10-08 | 云南常青树化工有限公司 | Preparation method for phosphogypsum baking-free brick |
| CN107721375A (en) * | 2017-11-16 | 2018-02-23 | 宁波纯恒固废科技有限公司 | A kind of method that sewage treatment plant's dewatered sludge suppresses non-autoclaved and unburned wall bulk |
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