CN1070172A - Foam fly ash silicate goods and cellular concrete product production method - Google Patents
Foam fly ash silicate goods and cellular concrete product production method Download PDFInfo
- Publication number
- CN1070172A CN1070172A CN91108907A CN91108907A CN1070172A CN 1070172 A CN1070172 A CN 1070172A CN 91108907 A CN91108907 A CN 91108907A CN 91108907 A CN91108907 A CN 91108907A CN 1070172 A CN1070172 A CN 1070172A
- Authority
- CN
- China
- Prior art keywords
- kiln
- goods
- foam
- cement
- slip
- 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.)
- Pending
Links
Images
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
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A kind of foam fly ash silicate goods and cellular concrete product production method are applicable to the production of light porous silicate product.It is that chemical gas generation method with air-entrained concrete building block, aerating flyash brick etc. changes physical foaming method into, foam stabilization, and foam expansion reaches 18～22 times.Thus, changed traditional cover half and be cast for the dynamic model cast, and changed 20 centimetres of low moulds into 60 centimetres of Gao Mo, labour intensity is reduced, production efficiency improves.On conservation system, adopt the normal pressure dry heating curing, saved the energy, improved the goods early strength, accelerated the mould turnover.Whipping agent of the present invention utilizes spent pulping liquor, has alleviated environmental pollution.
Description
The invention belongs to the production method of silicate building material.
The present invention is applicable to the production of light porous silicate product.Existing air-entrained concrete building block, the production of aerating silicate products such as aerating flyash brick all is to adopt aluminium powder, aluminium cream and alkali to be used as foaming agent, is kind of a chemical gas generation method.Bubble stability is poor, the easy layering of slip, even depression.For preventing that vibration from making bubble-break have to adopt the cover half cast.Bring following shortcoming so again: equipment increases, and workman's labor condition is poor, and the production work efficiency is low.Adopt the high temperature steam press maintenance in the goods maintenance, though can produce qualified product, energy consumption is big, needs high-tension apparatus, steams pressure equipment and is difficult to maximize, and productivity effect is low.
The present invention has overcome above-mentioned foaming agent, the weak point of pouring procedure, conservation system, make that pore is stable, cast is convenient, maintenance rationally, the little quality of goods drying shrinkage is good.
Main points of the present invention are, with the main body of spent pulping liquor as foaming agent, add unslaked lime and water glass as suds-stabilizing agent, adopt churned mechanically method to make its foaming, foam expansion reaches 18～22 times, and foam depression in 1 hour is apart from＜10 millimeters, 1 hour bleeding quantity＜5 milliliter.Change pouring type-change cover half simultaneously and be cast for the dynamic model cast, before the mould that will flow is dragged to stirrer, be dragged to maintenance in the kiln again after cast is good; And change 20 centimetres of low moulds into 60 centimetres of left and right sides Gao Mo, its goods tolerance up and down only are 20～30 kilograms/meter
3, not stratified, outward appearance is neat.On conservation system, adopt following temperature curve:
Xeothermic quiet stopping (65 ± 5 ℃) → xeothermic intensification (70～90 ℃) → damp and hot intensification (90～100 ℃) → xeothermic constant temperature (100 ℃) → naturally cooling → kiln discharge (＜60 ℃).
Its key is xeothermic quiet shut-down preface, at first should make in kiln temperature and the punching block about 65 ℃ of slurry temperature basically identical, in order to avoid influence the stability of foam slip, kiln temperature is wanted evenly, the each point temperature difference can avoid making goods generation layering, depression less than 5 ℃ on the kiln transverse section.This conservation system mainly is the normal pressure dry heating curing, and damp and hot heating process is for improving the kiln temperature as early as possible, reduces steam consumption, and the unnecessary moisture content of goods evaporates easily under the normal pressure dry heating curing, for improve its early strength, shorten between the quiet stopping time all favourable.Another operation that notes is a naturally cooling, and chilling is caused at end through naturally cooling and rapidly kiln discharge, and goods inside is cracked, and influences quality of item.Except that above-mentioned maintenance process, can also adopt high temperature to steam the maintaining process or the normal pressure steam curing process of pressing.Though the normal pressure steam curing process has equipment simple, do not need the advantage of high-tension apparatus, its goods aquation forms a large amount of hydrated calcium silicate gel (CSH), and easily the dehydration drying shrinkage causes many fine cracks, and quality of item is descended.Aspect maintenance of equipment, can adopt tunnel furnace, annular kiln or even maintenance pond, maintenance jar, but its inwall, bottom all should be furnished with enough steam-pipes, wherein have one to two pipeline to leave steam vent, about 1.2 kilograms per centimeter of vapor pressure
2Also available hot plate or waste heat gas heating.Raw-material proportioning is measured by weight percentage:
Flyash: 70～75%
Cement: (325# or 425#): 5～15%
Gypsum: 2～3%
The lime incorporation: making in the mixed slurry effectively, calcium is controlled at 8～12%
Spent pulping liquor (concentration is not less than 3 ° of Baumes) 10～15%
Suds-stabilizing agent a little.
Flyash can not contain＞5 millimeters coarse particles, and cross 4900 hole sizer surpluses and be not more than 25%.Lime and gypsum are gone into mill grinding simultaneously in 6: 1 ratio.Also can adopt mixing levigated sand and lime and cement to make starting material, or adopt cement paste to make starting material, make cellular concrete product or foamed cement goods as stated above.
The foam fly ash silicate goods that the present invention adopts the normal pressure dry heat method to produce, 600 kilograms/meter of unit dry weights
3, ultimate compression strength 35 kilograms per centimeter
2About, goods ultimate compression strength improves 30% after 30 drying and watering cycles, 0.53 millimeter/meter of maximum drying shrinkage value, and its quality significantly is better than atmospheric steam curing technology.
Embodiments of the invention are: produce 20 meters daily
3Scale, three in the dried hydrothermal curing mechanize of normal pressure tunnel furnace, 10 meters in every kiln maintenance goods
3, two in configuration stirrer.The raw-material weight proportioning is:
Flyash 70～75%
Cement (325# or 425#) 5～15%
Gypsum 2～3%
The lime incorporation: making in the mixed slurry effectively, calcium is controlled at 8～12%
Spent pulping liquor 10～15%
Suds-stabilizing agent a little.
The technological process of production is as figure
Its conservation system is:
Xeothermic quiet stopping (65 ± 5 ℃) → xeothermic intensification (70～90 ℃) → damp and hot intensification (90～100 ℃) → xeothermic constant temperature (100 ℃) → naturally cooling → kiln discharge (＜60 ℃).Kiln furnace used is the mechanize tunnel furnace, long 20 meters of kiln, and kiln is wide 1.95 meters, and kiln is high 1.79 meters, 24 centimetres of kiln wall thickness have 25 of 55 millimeters steam-pipes of diameter in the kiln, each 10 on two kiln walls, at the bottom of the kiln 5, wherein one for leaving the wet-hot steam pipeline of steam vent, 87 meters of the heat dissipation of pipeline total areas
2
In the present embodiment, solved the dry shrinkage problem of goods preferably, the steady quality of product.500～700 kilograms/meter of product over dry unit weights
3; Ultimate compression strength 25～35 kilograms per centimeter
2; Maximum drying shrinkage value＜1 millimeter/meter; 0.094～0.159 kilocalorie/Mi Shidu of thermal conductivity.Through nearly 300 meters
3Production, constant product quality, economic benefit is good.This product is used for a lightweight heat-proof floor block filler and a walling material, and has utilized the flyash waste material, has obtained good social benefit.
Claims (9)
1, a kind of foam fly ash silicate goods and cellular concrete product production method, flyash, lime stone-gypsum and cement are stirred into slip, or levigate sand, lime and cement stirred into slip, or cement stirred into cement paste, it is characterized in that, make slip (clean slurry) and spent pulping liquor foams mix, the mould that flows is injected in the back that stirs, and pulls in the kiln to become goods by certain conservation system maintenance;
2, production method according to claim 1 is characterized in that the each component ratio is by weight percentage:
Flyash: 70～75%
Cement (325# or 425#): 5～15%
Gypsum: 2～3%
Amount of lime (makes that the active calcium ion content is controlled at 8～12% in the mixed slurry
Spent pulping liquor (dense crossing is not less than 3 ° of Baumes) 10～15%
Suds-stabilizing agent a little;
3, slip according to claim 1 is characterized in that ratio of water to material is 0.5～0.6,56～65 ℃ of slurry temperatures;
4, spent pulping liquor according to claim 1 is characterized in that the mechanical stirring mode foams;
5, mobile mould according to claim 1 is characterized in that pulling in the kiln behind the cast foam slip before stirrer, and the kiln form removal is hauled out in goods maintenance back well, and mould also can be used after clearing up again;
6,, it is characterized in that about 60 centimetres of Mo Gaokeda according to the described mobile mould of claim 1.5;
7, kiln according to claim 1, the mould that it is characterized in that flowing can move within it smoothly, Yao Bi and kiln base fabric have steam-pipe, and wherein 1～2 leave steam vent, also available hot plate or waste heat gas heating;
8, conservation system according to claim 1 is characterized in that xeothermic quiet stopping (65 ° ± 5 ℃) → xeothermic intensification (70～90 ℃) → damp and hot intensification (90～100 ℃) → constant temperature (100 ℃) → naturally cooling → kiln discharge (＜60 ℃);
9, according to the described conservation system of claim 1.8, its feature also can be the steam-cured or high temperature steaming pressure of normal pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91108907A CN1070172A (en) | 1991-09-09 | 1991-09-09 | Foam fly ash silicate goods and cellular concrete product production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91108907A CN1070172A (en) | 1991-09-09 | 1991-09-09 | Foam fly ash silicate goods and cellular concrete product production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1070172A true CN1070172A (en) | 1993-03-24 |
Family
ID=4909544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91108907A Pending CN1070172A (en) | 1991-09-09 | 1991-09-09 | Foam fly ash silicate goods and cellular concrete product production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1070172A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307029C (en) * | 2003-09-30 | 2007-03-28 | 达辉（广东）轻质混凝土制品有限公司 | Method for manufacturing light conccrete product |
| CN102674784A (en) * | 2012-05-05 | 2012-09-19 | 太原理工大学 | Method for producing gypsum air-entrapping insulation board |
| CN103467042A (en) * | 2013-09-11 | 2013-12-25 | 山东理工大学 | Oiled-sand foam concrete building block and manufacturing method thereof |
| CN104310861A (en) * | 2014-10-10 | 2015-01-28 | 乔俊擎 | Building insulation board prepared by use of waste paper and preparation method of building insulation board |
| CN104692732A (en) * | 2015-03-05 | 2015-06-10 | 郑州春迈节能科技有限公司 | Light solid inner mold for hollow floor and preparation method of light solid inner mold |
| CN104891914A (en) * | 2015-05-22 | 2015-09-09 | 蚌埠营军新型墙体材料有限公司 | Method for preparing aerated brick from papermaking black liquor |
| CN104891915A (en) * | 2015-05-22 | 2015-09-09 | 蚌埠营军新型墙体材料有限公司 | Method for preparing aerated brick from waste paper |
| CN106007528A (en) * | 2016-05-25 | 2016-10-12 | 句容联众科技开发有限公司 | Light-weight concrete |
| CN108911669A (en) * | 2018-08-02 | 2018-11-30 | 张家港江苏科技大学产业技术研究院 | The method for preparing self-compacting concrete using draft spent pulping liquor |
| CN111533503A (en) * | 2020-05-28 | 2020-08-14 | 仇道成 | Red mud aerated concrete and preparation method thereof |
| CN113292271A (en) * | 2021-04-25 | 2021-08-24 | 重庆泰恒建筑科技有限公司 | Formula and preparation process of composite type bubble mixed light soil foaming agent |
-
1991
- 1991-09-09 CN CN91108907A patent/CN1070172A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307029C (en) * | 2003-09-30 | 2007-03-28 | 达辉（广东）轻质混凝土制品有限公司 | Method for manufacturing light conccrete product |
| CN102674784A (en) * | 2012-05-05 | 2012-09-19 | 太原理工大学 | Method for producing gypsum air-entrapping insulation board |
| CN103467042A (en) * | 2013-09-11 | 2013-12-25 | 山东理工大学 | Oiled-sand foam concrete building block and manufacturing method thereof |
| CN104310861A (en) * | 2014-10-10 | 2015-01-28 | 乔俊擎 | Building insulation board prepared by use of waste paper and preparation method of building insulation board |
| CN104310861B (en) * | 2014-10-10 | 2016-02-10 | 三门峡职业技术学院 | A kind of insulating board for building utilizing waste paper and preparation method thereof |
| CN104692732A (en) * | 2015-03-05 | 2015-06-10 | 郑州春迈节能科技有限公司 | Light solid inner mold for hollow floor and preparation method of light solid inner mold |
| CN104891915A (en) * | 2015-05-22 | 2015-09-09 | 蚌埠营军新型墙体材料有限公司 | Method for preparing aerated brick from waste paper |
| CN104891914A (en) * | 2015-05-22 | 2015-09-09 | 蚌埠营军新型墙体材料有限公司 | Method for preparing aerated brick from papermaking black liquor |
| CN106007528A (en) * | 2016-05-25 | 2016-10-12 | 句容联众科技开发有限公司 | Light-weight concrete |
| CN108911669A (en) * | 2018-08-02 | 2018-11-30 | 张家港江苏科技大学产业技术研究院 | The method for preparing self-compacting concrete using draft spent pulping liquor |
| CN108911669B (en) * | 2018-08-02 | 2021-01-01 | 张家港江苏科技大学产业技术研究院 | Method for preparing self-compacting concrete by using herbaceous pulp waste liquid |
| CN111533503A (en) * | 2020-05-28 | 2020-08-14 | 仇道成 | Red mud aerated concrete and preparation method thereof |
| CN113292271A (en) * | 2021-04-25 | 2021-08-24 | 重庆泰恒建筑科技有限公司 | Formula and preparation process of composite type bubble mixed light soil foaming agent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105645901B (en) | Light thermal-insulation sheet material prepared with construction refuse regenerated fine powder and preparation method thereof | |
| CN105152598B (en) | A kind of rack type ceramsite foam concrete and preparation method thereof | |
| CN104193263B (en) | Utilize construction waste to prepare the method for environment-friendly insulating building block | |
| CN101581131B (en) | Non-autoclaved aerated concrete building block and manufacturing method | |
| CN1954983B (en) | Method for preparing bearing steam-pressing aero-concrete using chemical clay-slag | |
| CN104844106B (en) | A3.5 B05 level autoclave aerated concrete building block prepared by a kind of quartzy Weathered Sand and method thereof | |
| CN110204258A (en) | A kind of unburned foamed concrete of full solid waste and its preparation method and application based on tail gas carbonization | |
| CN1070172A (en) | Foam fly ash silicate goods and cellular concrete product production method | |
| CN109608151B (en) | Method for preparing high-strength carbonized building material by using steel slag micro powder | |
| CN103467023A (en) | Method for preparing low density oil well cementing cement test blocks by using pitchstone | |
| CN103435319A (en) | Ardealite-based high-strength light building blocks prepared from ardealite and production process thereof | |
| CN103964889B (en) | Aerated concrete prepared from coal ash-nanosilicon dioxide-silica fume as main siliceous material | |
| CN103467018A (en) | Preparation method for preparing low-density oil well cementing cement briquettes by vermiculites | |
| CN104177119A (en) | Preparation method of heat insulating porous ceramic made from light coal ash | |
| CN101698614B (en) | Ultramicropore high-intensity heat insulation refractory bricks and method for making same | |
| CN109534761A (en) | A kind of red mud, aluminium ash base Unsteamed air-entrapping concrete and preparation method thereof | |
| CN104671682A (en) | Method for preparing hemihydrate gypsum gel material and gypsum products on line by using phosphogypsum at hot stage | |
| CN104030649B (en) | Production process for high-strength high-volume phosphogypsum baking-free brick | |
| CN102344298A (en) | Foamed concrete heat-preservation and load-bearing brick and production method thereof | |
| CN102745959A (en) | Ceramsite self-insulation building block and preparation method | |
| CN108033745A (en) | A kind of Green production method of iron remaining fund air-entrained concrete building block | |
| CN103288370A (en) | Process for producing high-strength alpha-gypsum from chemical gypsum by adopting dry method | |
| CN110937867A (en) | Lightweight ceramsite concrete and preparation method thereof | |
| CN103936387B (en) | A kind of preparation method of light flyash base thermal insulation material | |
| CN114149219B (en) | Preparation method of normal-temperature curing heat-preservation and heat-insulation material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication |