CN108947347A - A method of compacting high density flyash brick green body - Google Patents

A method of compacting high density flyash brick green body Download PDF

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Publication number
CN108947347A
CN108947347A CN201810863831.XA CN201810863831A CN108947347A CN 108947347 A CN108947347 A CN 108947347A CN 201810863831 A CN201810863831 A CN 201810863831A CN 108947347 A CN108947347 A CN 108947347A
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CN
China
Prior art keywords
green body
pressure
flyash
flyash brick
stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810863831.XA
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Chinese (zh)
Inventor
王正作
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zheng Qizhuang
Original Assignee
Ningbo Hi-Tech Zone Rising And Electrical Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Ningbo Hi-Tech Zone Rising And Electrical Machinery Co Ltd filed Critical Ningbo Hi-Tech Zone Rising And Electrical Machinery Co Ltd
Priority to CN201810863831.XA priority Critical patent/CN108947347A/en
Publication of CN108947347A publication Critical patent/CN108947347A/en
Withdrawn legal-status Critical Current

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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • 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
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00431—Refractory materials
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • 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
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The present invention provides a kind of method for suppressing high density flyash brick green body, includes the following steps: 1) to mix flyash, clay, cement and quick lime, stir evenly, obtain mixed dry material；2) water for accounting for mixed dry material weight 15-18% is added in mixed dry material, obtains mixing wet feed after mixing evenly；3) mixing wet feed is put into square dies, wherein square dies will be such that the slenderness ratio of green body controls between 5.5-6；4) mixing wet feed pressurize stage by stage for four times；5) green body for completing compacting takes out, and obtains flyash brick green body.This method suppresses the flyash brick green body density with higher come, and thus the fire resistance of manufactured flyash brick gets a promotion.

Description

A method of compacting high density flyash brick green body
The present invention is application number: 2016106001882, the applying date: 2016-07-28, a kind of denomination of invention: flyash brick The divisional application of the drawing method of green body.
Technical field
The present invention relates to a kind of processing methods of building block green body.
Background technique
With the development of Building technology, fly ash building block is used more and more extensive, and utilization of fly ash flyash waste material is done Raw material has many advantages, such as energy saving, lightweight.But its disadvantage is also apparent, be exactly intensity not just, fire resistance is poor, It is loose soon under hot environment.By the study found that the fire resistance of flyash brick and the density of flyash brick have certain close Connection property, the density of flyash brick is bigger, keeps the not loose time more long under high temperature environment, i.e., fire resistance is better.It is existing The density of flyash brick in technology focuses mostly in 2-2.5g/cm3, fire resistance is poor, under 200 DEG C or more of hot environment Disintegration soon.
Summary of the invention
In order to solve problem above present in background technique, the present invention provides a kind of compacting high density flyash bricks The method of green body, this method suppress the flyash brick green body density with higher come, and thus manufactured flyash brick is resistance to Fiery performance gets a promotion.
In order to achieve the above objectives, technical scheme is as follows:
A method of compacting high density flyash brick green body, which comprises the steps of:
1) flyash, clay, cement and quick lime are mixed with 15: 5: 2: 1 weight ratio, stirs evenly, is mixed Close siccative；
2) water for accounting for mixed dry material weight 15-18% is added in mixed dry material, obtains mixing wet feed after mixing evenly；
3) will mixing wet feed be put into square dies, wherein square dies to make green body slenderness ratio control 5.5-6 it Between；
4) mixing wet feed pressurize stage by stage for four times；
5) green body for completing compacting takes out, and obtains flyash brick green body.
Described four times stage by stage pressurization include:
1) it pressurizes for the first time, with 220Mpa persistent pressure 120s, then pressure release to 150MPa and continues 60s, release later Pressure；
2) it second pressurizes, with 260MPa persistent pressure 150s, then pressure release to 180MPa and continues 90s, release later Pressure；
3) third time is pressurizeed, with 300Mpa persistent pressure 60s, then pressure relief；
4) the 4th pressurization, with pressure relief after the pressure persistent pressure 300s of 250Mpa；
Preferably, the building block mould will make the slenderness ratio of green body control 5.7.
Preferably, the water being added in step 2) accounts for the 15.5% of mixed dry material weight.
The application's the utility model has the advantages that
Drawing method of the present invention can make the density of flyash brick green body reach 4g/cm3, while can make to be made The fire resistance of flyash brick greatly reinforce.
Specific embodiment
Embodiment 1
Flyash brick green body is suppressed, is included the following steps:
The quick lime of 15kg flyash, 5kg clay, 2kg cement and 1kg are mixed, stirred evenly；Then by mixture Middle addition 3.565kg water obtains mixing wet feed after mixing evenly；Then mixing wet feed is put into rectangular mold, the mold Inner cavity length to height ratio control 5.7；Then it is pressurizeed using press machine to the wet feed in mold, is pressurised into four sublevels Section pressurization:
1) it pressurizes for the first time, with 220Mpa persistent pressure 120s, then pressure release to 150MPa and continues 60s, release later Pressure；
2) it second pressurizes, with 260MPa persistent pressure 150s, then pressure release to 180MPa and continues 90s, release later Pressure；
3) third time is pressurizeed, with 300Mpa persistent pressure 60s, then pressure relief；
4) the 4th pressurization, with pressure relief after the pressure persistent pressure 300s of 250Mpa；
The green body that compacting is completed takes out, and obtains flyash brick green body.
Flyash brick green body obtained is measured through test, and density can reach 4.6g/cm3.The flyash brick green body passes through Flyash brick is obtained after steam-cured, it is tested at a high temperature of 200 DEG C, still structure is kept to complete after 30min, and intensity is also only Loss 20%.
The key of technical solution of the present invention is pressure method, we have discovered that, although improving density can effectively mention The fire resistance of flyash brick is risen, but the simple method by promotion moulding pressure is not obvious to improve density effect, base Adherence pressure can not also effectively improve density to the density of body again after reaching certain value, main reason is that the gas in powder It can not effectively exclude；Between powder there is opposite effect power, counteract a part of pressure etc., applicant passes through multiple Test determines method of the present invention, mainly effectively promotes density by 3 points, first is that control moisture content, but pass through The slenderness ratio for controlling green body, third is that using pressurizeing stage by stage.Under this 3 points comprehensive function, the density of powder green body is reaching There is promotion after to the limit again.
It will be recognized by those skilled in the art, can be to above-mentioned under the premise of without departing from protection scope of the present invention Embodiment is carry out various modifications, changes and is combined, and thinks that this modification, variation and combination are in originality thought Within the scope of.

Claims (1)

1. a kind of method for suppressing high density flyash brick green body, which comprises the steps of:
1) flyash, clay, cement and quick lime are mixed with 15: 5:2: 1 weight ratio, is stirred evenly, it is dry to obtain mixing Material；
2) water for accounting for mixed dry material weight 15-18% is added in mixed dry material, obtains mixing wet feed after mixing evenly；
3) mixing wet feed is put into square dies, wherein square dies will be such that the slenderness ratio of green body controls between 5.5-6；
4) mixing wet feed pressurize stage by stage for four times；
5) green body for completing compacting takes out, and obtains flyash brick green body；
Described four times stage by stage pressurization include:
1) it pressurizes for the first time, with 220Mpa persistent pressure 120s, then pressure release to 150MPa and continues 60s, later pressure relief；
2) it second pressurizes, with 260MPa persistent pressure 150s, then pressure release to 180MPa and continues 90s, later pressure relief；
3) third time is pressurizeed, with 300Mpa persistent pressure 60s, then pressure relief；
4) the 4th pressurization, with pressure relief after the pressure persistent pressure 300s of 250Mpa；
The building block mould will make the slenderness ratio of green body control 5.7；
The water being added in step 2) accounts for the 15.5% of mixed dry material weight.
CN201810863831.XA 2016-07-28 2016-07-28 A method of compacting high density flyash brick green body Withdrawn CN108947347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810863831.XA CN108947347A (en) 2016-07-28 2016-07-28 A method of compacting high density flyash brick green body

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810863831.XA CN108947347A (en) 2016-07-28 2016-07-28 A method of compacting high density flyash brick green body
CN201610600188.2A CN106564115B (en) 2016-07-28 2016-07-28 A kind of drawing method of flyash brick green body

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CN201810863817.XA Withdrawn CN108947374A (en) 2016-07-28 2016-07-28 A kind of method of multistage compacting flyash brick green body
CN201610600188.2A Active CN106564115B (en) 2016-07-28 2016-07-28 A kind of drawing method of flyash brick green body
CN201810863831.XA Withdrawn CN108947347A (en) 2016-07-28 2016-07-28 A method of compacting high density flyash brick green body

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CN201610600188.2A Active CN106564115B (en) 2016-07-28 2016-07-28 A kind of drawing method of flyash brick green body

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108918230B (en) * 2018-08-24 2020-09-18 河北工程大学 Preparation method of coal brick
WO2020148786A1 (en) * 2019-01-17 2020-07-23 PATEL, Deepti Method for producing angular shaped fly ash aggregate
CN113073199B (en) * 2021-03-25 2023-08-11 河北蓝海智投环保科技有限公司 Special composite additive for metallurgical and coking solid waste treatment and application thereof
CN115594453B (en) * 2022-11-02 2023-11-17 海南大学 Fibrous geopolymer plate and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1043117A (en) * 1989-12-16 1990-06-20 湖北省电力试验研究所 Free of calcining and steam curing flyash brick and preparation method thereof
CN1338363A (en) * 2000-08-22 2002-03-06 河南恒通源实业有限公司 Steaming-pressing technology for forming high-strength powdered coal ash bricks

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1010230B (en) * 1985-12-11 1990-10-31 同济大学 Decorative face brick made of tailings of iron ore
KR20000040829A (en) * 1998-12-21 2000-07-05 허성오 Method for producing fly ash brick
JP2006240236A (en) * 2005-03-07 2006-09-14 Sma:Kk Method of manufacturing solidified molded article
CN101050096A (en) * 2006-04-03 2007-10-10 安徽安纳达钛业股份有限公司 Method for fabricating bricks free from burning from waste residue containing vitreous body of silicon, aluminum and chemical gypsum

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1043117A (en) * 1989-12-16 1990-06-20 湖北省电力试验研究所 Free of calcining and steam curing flyash brick and preparation method thereof
CN1338363A (en) * 2000-08-22 2002-03-06 河南恒通源实业有限公司 Steaming-pressing technology for forming high-strength powdered coal ash bricks

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CN106564115B (en) 2018-12-18
CN106564115A (en) 2017-04-19

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PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20200313

Address after: 315202 high yield village, Zhengzhai Town, Pujiang County, Jinhua, Zhejiang

Applicant after: Zheng Qizhuang

Address before: 315040 No. 98 Chuangyuan Road, Ningbo High-tech Zone, Zhejiang Province

Applicant before: NINGBO HIGH-TECH ZONE QIXING ELECTROMECHANICAL Co.,Ltd.

TA01 Transfer of patent application right
WW01 Invention patent application withdrawn after publication

Application publication date: 20181207

WW01 Invention patent application withdrawn after publication