CN107285688B - A kind of no asbestos alkaline residue calcium silicate board and its production method - Google Patents
A kind of no asbestos alkaline residue calcium silicate board and its production method Download PDFInfo
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- CN107285688B CN107285688B CN201710669528.1A CN201710669528A CN107285688B CN 107285688 B CN107285688 B CN 107285688B CN 201710669528 A CN201710669528 A CN 201710669528A CN 107285688 B CN107285688 B CN 107285688B
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- alkaline residue
- calcium silicate
- asbestos
- silicate board
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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
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A kind of no asbestos alkaline residue calcium silicate board is made of the following raw material weight share proportioning：Alkaline residue：25 40 parts；Argillaceous bentonite：5 10 parts；Diatomite：10 15 parts；Cement：15 25 parts；Lime：10 20 parts；Fibrous wollastonite：15 20 parts；Alkali resistant glass fiber：35 parts；Polypropylene chemical fiber：58 parts；Waterglass：0.5 3 parts；Anhydrous sodium sulfate：15 parts；Alkaline residue directly uses the solid alkaline residue of alkali factory discharge, does not need specially treated, is directly used in manufacture calcium silicate board, turn waste into wealth, production cost is low, manufactures out without asbestos alkaline residue calcium silicate board product, meet the indices requirement of national standard, there is good economic and social benefit.
Description
Technical field
The present invention relates to the preparing technical fields of asbestos-free calcium silicate board, and in particular to a kind of no asbestos alkaline residue calcium silicate board
And its production method.
Background technology
Calcium silicate board is a kind of common building and ornament materials, has been widely used the shifting board in ship, furred ceiling
With the wall of building non-bearing, and there are other places of fire protection requirement.Due to there is asbestos in traditional asbestos silicic acid cover board,
Harm is brought to health, is easy to cause cancer, asbestos friction material was gradually disabled in recent years, and technical staff transfers to seek more preferable
Asbestos-free calcium silicate board of the substitute to be met the requirements.
Currently, the preparation method of asbestos-free calcium silicate board is it has been reported that such as Publication No. CN1884180A（It is a kind of
Asbestos-free calcium silicate board and preparation method thereof）And CN1205315 A（Non-asbest china clay calcium silicate plate and preparation method thereof）In
State's patent application discloses the preparation method of asbestos-free calcium silicate board, but the preparation side of these existing asbestos-free calcium silicate boards
It is disadvantageous in that existing for method：Due to needing to use a large amount of raw ore substance and lignocellulose raw material, on the one hand lead to its life
It is higher to produce cost, on the other hand causes the consumption of ore resource, the waste being widely present is not used effectively, waste
Recycling level of application it is low, concurrently there are the problems such as of high cost, construction is difficult and performance parameter is poor.
China has been maximum soda manufacture state in the world at present, the improvement of ammonia alkali factory alkaline residue be always restrict it is pure both at home and abroad
The bottleneck of alkali industry development.As National Environmental administers the sound of policies and regulations, to the environmental requirement of soda in China enterprise into one
Step improve, if from now on soda in China industry the waste residue of ammonia alkali enterprise, waste liquid orderly discharge and comprehensive utilization in terms of still without
Breakthrough, by the serious sound development for restricting soda industry.Therefore, the comprehensive utilization of alkaline residue and its Treatment process are ground
Study carefully with far-reaching society and economic implications.Alkaline residue main component is CaCO3, NaCl, also includes a certain amount of silica,
Therefore, alkaline residue is innovatively applied in the preparation of calcium silicate board by the application.
It is base material that the present invention, which is using alkaline residue, bentonite, wollastonite, cement, diatomite, adds synthetic fibers and activation
The auxiliary materials such as agent, prepare asbestos-free calcium silicate board, take full advantage of the physical arrangement and wollastonite and cement mixing of the ingredient of alkaline residue
Aquation, and fiber the most suitable and activator have been selected, production obtains the asbestos-free calcium silicate board for meeting indices, realizes
Turn waste into wealth, improve that waste utilization efficiency, performance indicator are superior, production cost is relatively low, environmentally protective no asbestos silicic acid
Calcium plate.
Invention content
The present invention be purpose be expand alkaline residue utilization approaches obtain performance in order to improve waste utilization efficiency and refer to
Mark the asbestos-free calcium silicate board that superior, production cost is relatively low, environmentally protective.
Technical solutions according to the invention are：A kind of no asbestos alkaline residue calcium silicate board, by the following raw material weight share
Proportioning composition：Alkaline residue：25-40 parts；Argillaceous bentonite：5-10 parts；Diatomite：10-15 parts；Cement：15-25 parts；Lime：
10-20 parts；Fibrous wollastonite：15-20 parts；Alkali resistant glass fiber：3-5 parts；Polypropylene chemical fiber：5-8 parts；Waterglass：
0.5-3 parts；Anhydrous sodium sulfate：1-5 parts；
A kind of preparation method of no asbestos alkaline residue calcium silicate board comprising following steps：1, weight share proportioning is following
Raw material：Alkali factory production discharge solid alkaline residue by 25-40 by weight parts, 5-10 parts of argillaceous bentonite, diatomite 10-15
Part, 10-20 parts of lime, 15-20 parts of fibrous wollastonite, 15-25 parts of cement, above-mentioned raw materials are put into agitating device and are fully stirred
It mixes, a certain amount of water is then added, is stirred for, the mixture after stirring is then subjected to shelving；2, the alkali resistant of 3-5 parts of parts by weight is taken
Glass fibre, 5-8 parts of polypropylene chemical fiber, 0.5-3 parts of waterglass, 1-5 parts of anhydrous sodium sulfate and a certain amount of water,
Adequately it is mixed；3, by mixture and step 2 that step 1 obtains obtain mixture be put into blender stir it is equal
It is even, then obtained mixture is put into hydraulic press mold, precuring is demoulded after molding, obtains the idiosome of precuring；4、
The idiosome of the precuring obtained in step 3 is subjected to steam press maintenance；5, drying and processing is carried out after completing steam press maintenance, obtains no stone
Cotton alkaline residue calcium silicate board product.
It is an advantage of the invention that：
1, the present invention is using alkaline residue, argillaceous bentonite, wollastonite, cement, diatomite as base material primary raw material, and is incorporated anti-
Alkali containing glass fibre, polypropylene chemical fiber, waterglass and anhydrous sodium sulfate so that alkaline residue waste is fully utilized, and matches
Silicon, calcium content and ratio in the base material of ratio is more excellent, can fully react, and obtained calcium silicate board intensity is high, fire resistance is high, anti-
It is strong to roll over intensity.
2, alkaline residue directly uses the solid alkaline residue of alkali factory discharge, does not need specially treated, is directly used in manufacture calcium silicate board,
Production cost is low.Argillaceous bentonite, fibrous wollastonite make reaction more abundant, and obtained calcium silicate board performance is more preferably.
3, plank can be improved as the reaction of flocculation aid acceleration of hydration, anhydrous sodium sulfate as activator by adding waterglass
Intensity in relatively low steam curing temperature, alkali resistant glass fiber and polypropylene chemical fiber proportion so that calcium silicate board
Performance significantly increases.It manufactures out without asbestos alkaline residue calcium silicate board product, meets the indices requirement of national standard, have
Good economic and social benefit.
Specific implementation mode
Embodiment 1：
A kind of no asbestos alkaline residue calcium silicate board is made of the following raw material weight share proportioning：Alkaline residue：25-40 parts；It is viscous
Earthy bentonite：5-10 parts；Diatomite：10-15 parts；Cement：15-25 parts；Lime：10-20 parts；Fibrous wollastonite：15-20
Part；Alkali resistant glass fiber：3-5 parts；Polypropylene chemical fiber：5-8 parts；Waterglass：0.5-3 parts；Anhydrous sodium sulfate：1-5 parts.
The flexural strength without asbestos alkaline residue calcium silicate board that said ratio range obtains be 8-15MPa, water absorption rate 20-33%,
Bulking factor is 0.11-0.70%, has non-ignitable performance, meets the index request of national standard.
It is preferably matched, 35 parts of alkaline residue；10 parts of argillaceous bentonite；10 parts of diatomite；20 parts of cement；Lime 15
Part；15 parts of fibrous wollastonite；5 parts of alkali resistant glass fiber；Polypropylene chemical fiber：5 parts；Waterglass：1 part；Anhydrous slufuric acid
Sodium：3 parts.
Embodiment 2：A kind of preparation method of no asbestos alkaline residue calcium silicate board comprising following steps：
1, weight share matches following raw materials according：The solid alkaline residue of alkali factory production discharge presses 25-40 by weight parts, clay
5-10 parts of shape bentonite, 10-15 parts of diatomite, 10-20 parts of lime, 15-20 parts of fibrous wollastonite, 15-25 parts of cement, will be upper
It states raw material and is put into agitating device and be sufficiently stirred, a certain amount of water is then added, is stirred for, then carry out the mixture after stirring
Shelving；
2, take the alkali resistant glass fibers of 3-5 parts of parts by weight, 5-8 parts of polypropylene chemical fiber, 0.5-3 parts of waterglass,
1-5 parts of anhydrous sodium sulfate and a certain amount of water, are adequately mixed；
3, it mixture and step 2 that step 1 obtains is obtained mixture is put into blender to stir evenly, then will obtain
Mixture is put into hydraulic press mold, and precuring is demoulded after molding, obtains the idiosome of precuring；
4, the idiosome of the precuring obtained in step 3 is subjected to steam press maintenance；
5, drying and processing is carried out after completing steam press maintenance, obtains no asbestos alkaline residue calcium silicate board product, carries out sanding processing.
Wherein, the enclosing material time in step 1 is 6-10 hours；Moulding pressure in step 3 in hydraulic press is 10-
20Mpa, pressing time 3-10min；Steam press maintenance in step 4 is put into still kettle, after precuring 6-15 hours in pressure
Under 1MPa, temperature 170-180 degree steam press maintenances are kept 10-20 hours；Drying and processing carries out in drying box, and 70 ° of constant temperature 6-8 are small
When.What is obtained meets the regulation of national standard without asbestos alkaline residue calcium silicate board product, and performance indicator is fine, has and answers well
Use promotional value.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the present invention in any form；It is all
The those of ordinary skill of the industry can implement the present invention by the above and swimmingly；But all technologies for being familiar with this profession
Personnel without departing from the scope of the present invention, repaiied by a little change for being made using disclosed above technology contents
Decorations and the equivalent variations developed, are the equivalent embodiment of the present invention；Meanwhile all substantial technologicals according to the present invention are to above real
The variation, modification and evolution etc. for applying any equivalent variations made by example, still fall within the protection domain of technical scheme of the present invention
Within.
Claims (2)
1. a kind of preparation method of no asbestos alkaline residue calcium silicate board, which is characterized in that this method comprises the following steps：
（1）, weight share match following raw materials according：25-40 parts of solid alkaline residue, the argillaceous bentonite 5-10 of alkali factory production discharge
Part, 10-15 parts of diatomite, 10-20 parts of lime, 15-20 parts of fibrous wollastonite, 15-25 parts of cement, above-mentioned raw materials are put into and are stirred
It mixes in device and is sufficiently stirred, a certain amount of water is then added, is stirred for, the mixture after stirring is then subjected to shelving；
（2）, the alkali resistant glass fiber, 5-8 parts of polypropylene chemical fiber, 0.5-3 parts of waterglass, the 1-5 that take 3-5 parts of parts by weight
The anhydrous sodium sulfate and a certain amount of water of part, are adequately mixed；
（3）, by step（1）Obtained mixture and step（2）It obtains mixture and is put into blender to stir evenly, then will obtain
Mixture be put into hydraulic press mold, precuring is demoulded after molding, obtains the idiosome of precuring；
（4）, by step（3）In the obtained idiosome of precuring carry out steam press maintenance；
（5）, complete steam press maintenance after carry out drying and processing, then carry out sanding, obtain no asbestos alkaline residue calcium silicate board product.
2. a kind of preparation method of no asbestos alkaline residue calcium silicate board as described in claim 1, which is characterized in that step（1）In
Enclosing material time be 6-10 hours；Step（3）Moulding pressure in middle hydraulic press is 10-20Mpa, pressing time 3-
10min；Step（4）In steam press maintenance after precuring 6-15 hours, be put into still kettle, at pressure 1MPa, keep temperature
170-180 degree steam press maintenances 10-20 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710669528.1A CN107285688B (en) | 2017-08-08 | 2017-08-08 | A kind of no asbestos alkaline residue calcium silicate board and its production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710669528.1A CN107285688B (en) | 2017-08-08 | 2017-08-08 | A kind of no asbestos alkaline residue calcium silicate board and its production method |
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| Publication Number | Publication Date |
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| CN107285688A CN107285688A (en) | 2017-10-24 |
| CN107285688B true CN107285688B (en) | 2018-08-14 |
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| CN108859321A (en) * | 2018-05-15 | 2018-11-23 | 深圳市好美佳智能家居股份有限公司 | A kind of lightweight, wear-resisting, good weatherability composite board and its application |
| CN111718168A (en) * | 2020-03-04 | 2020-09-29 | 郑州知淘信息科技有限责任公司 | Asbestos-free composite fiber reinforced calcium silicate board and preparation method thereof |
| CN112661473B (en) * | 2020-12-28 | 2022-03-25 | 广东雄塑环保板业有限公司 | Anti-cracking calcium silicate board and preparation process thereof |
| CN115159930A (en) * | 2022-08-03 | 2022-10-11 | 安徽智汇环保路基新材料有限公司 | Roadbed material taking solid wastes as raw materials and preparation method thereof |
| CN115677314A (en) * | 2022-10-27 | 2023-02-03 | 江苏德新管道科技有限公司 | Preparation method of microporous calcium silicate insulation board |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205315A (en) * | 1997-07-10 | 1999-01-20 | 李瑜琳 | Non-asbest china clay calcium silicate plate and its prodn. method |
| CN1884180A (en) * | 2006-06-30 | 2006-12-27 | 章燕芳 | Asbestos-free calcium silicate board and method for making same |
| CN101838131A (en) * | 2010-05-25 | 2010-09-22 | 陈耀强 | Dynamic hot water reaction hard microporous fiber calcium silicate board and manufacturing method thereof |
| KR101304194B1 (en) * | 2013-01-30 | 2013-09-05 | 선일공업 (주) | Manufacturing method of magnesium hydroxide powder |
| CN103449773A (en) * | 2013-08-14 | 2013-12-18 | 武汉建筑材料工业设计研究院有限公司 | Light-weight calcium silicate plate and preparation method thereof |
| CN106277971A (en) * | 2016-08-10 | 2017-01-04 | 卓达新材料科技集团威海股份有限公司 | A kind of hot-forming alkaline residue building waste sheet material |
-
2017
- 2017-08-08 CN CN201710669528.1A patent/CN107285688B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205315A (en) * | 1997-07-10 | 1999-01-20 | 李瑜琳 | Non-asbest china clay calcium silicate plate and its prodn. method |
| CN1884180A (en) * | 2006-06-30 | 2006-12-27 | 章燕芳 | Asbestos-free calcium silicate board and method for making same |
| CN101838131A (en) * | 2010-05-25 | 2010-09-22 | 陈耀强 | Dynamic hot water reaction hard microporous fiber calcium silicate board and manufacturing method thereof |
| KR101304194B1 (en) * | 2013-01-30 | 2013-09-05 | 선일공업 (주) | Manufacturing method of magnesium hydroxide powder |
| CN103449773A (en) * | 2013-08-14 | 2013-12-18 | 武汉建筑材料工业设计研究院有限公司 | Light-weight calcium silicate plate and preparation method thereof |
| CN106277971A (en) * | 2016-08-10 | 2017-01-04 | 卓达新材料科技集团威海股份有限公司 | A kind of hot-forming alkaline residue building waste sheet material |
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