CN104128359A - Acidified building garbage - Google Patents

Acidified building garbage Download PDF

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Publication number
CN104128359A
CN104128359A CN201410379084.4A CN201410379084A CN104128359A CN 104128359 A CN104128359 A CN 104128359A CN 201410379084 A CN201410379084 A CN 201410379084A CN 104128359 A CN104128359 A CN 104128359A
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China
Prior art keywords
building waste
acidifying
batching
building garbage
acidified
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Granted
Application number
CN201410379084.4A
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Chinese (zh)
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CN104128359B (en
Inventor
许盛英
管永祥
金白云
邱茗
王跃皓
王鲁海
许庆华
蒋文兰
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Jiangsu Shiao Nonmetallic Application Technology Co., Ltd.
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许盛英
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/58Construction or demolition [C&D] waste

Abstract

The invention discloses acidified building garbage, and the key points of the technical scheme are that: acidified building garbage ingredients comprise building garbage, attapulgite clay, magnesium oxide, sulfuric acid, instant sodium silicate, polyvinyl alcohol, hydroxypropyl methyl cellulose and sodium carbonate. A production method of the acidified building garbage is as follows: acidified building garbage ingredients are transported into a mill for powder milling, and the milled powder is the acidified building garbage. According to the production method of the acidified building garbage, chemical reactions of sulfuric acid and instant sodium silicate, polyvinyl alcohol, hydroxypropyl methyl cellulose and sodium carbonate can be avoided. By acidifying roasting treatment of the building garbage, utilization ratio of the building garbage can be improved, good economic benefit, environmental benefit and social benefit are brought, and the waste is turned into wealth. The acidified building garbage has the characteristics of being good in looseness, adsorption, thixotropy, plasticity and adhesion, and is applicable to the production of nutrient soil, environmental protection materials and garden materials.

Description

Building waste after acidifying
Technical field
The present invention relates to acidification, be specifically related to the building waste after a kind of acidifying.
Background technology
Building waste refers to the discarded object that construction, unit in charge of construction or individual build, lay or remove, produce in repairerment process all kinds of buildings, structures, pipe network etc.The composition of building waste has: packing case and the packaging bag etc. of the yellow ground that is scattered in the mortar being scattered and concrete, brickbat and broken concrete, handling process, stone, piece stone, dregs, steel scrap muscle, waste iron wire, various steel scrap accessory, metal pipe line waste material, useless bamboo wood, wood chip, wood shavings, various ornament materials.
The post-processed of building waste, present stage is mainly taking landfill as main, recovery utilization rate is very low.
Summary of the invention
The object of the invention is to overcome weak point in prior art, the building waste after a kind of acidifying is provided.
Building waste batching after acidifying is made up of building waste, Concave-convex clay rod, magnesia, sulfuric acid, quick dissolved sodium silicate, polyvinyl alcohol, hydroxypropyl methylcellulose and sodium carbonate.
The production method of the building waste after acidifying: by abrasive dust in the building waste batching input grinding machine after acidifying, the powder after abrasive dust is the building waste after acidifying.
Building waste is to select the yellow ground, stone and the dregs the like waste that in the mortar that is scattered in architectural engineering, concrete, broken brick and tile, broken concrete, handling process, are scattered, and the present invention selects the building waste after pulverizing, grain fineness≤2 millimeter of building waste.
Concave-convex clay rod has unique layer chain structure feature, and crystal is needle-like, fibrous or fiber collection shape.Concave-convex clay rod has unique dispersion, high temperature resistant, the anti-good colloidal nature such as saline and alkaline and higher adsorption capacity, and has certain plasticity and cohesive force, and the present invention selects grain fineness≤5 millimeter of Concave-convex clay rod.
Magnesia has the general character of basic anhydride, belongs to Binder Materials, can improve the colloidal property of Concave-convex clay rod.
It is 98% the concentrated sulfuric acid that sulfuric acid is selected concentration.
Quick dissolved sodium silicate is white granular material, can be dissolved in fast water, has that cohesive force is strong, intensity is higher, acid resistance, good heat resistance, the feature of alkali resistance and poor water resistance.
Polyethenol series white solid, that external form is divided is cotton-shaped, graininess, Powdered three kinds; Nonpoisonous and tasteless, graininess can be dissolved in 80--90 DEG C of water, pulverously after other powders pre-dispersed, can dissolve at normal temperatures.There is good viscosity, polymerism, caking property and water-retaining property.
Hydroxypropyl methylcellulose has thickening capabilities, salt discharge, pH stability, water-retaining property, dimensional stability, good film forming and the feature such as resistance to enzyme, dispersiveness and caking property widely.
Sodium carbonate has the general character and the heat endurance of salt, soluble in water, and its aqueous solution is alkalescence, in the present invention for adjusting the building waste pH value after acidifying.
The present invention is achieved by following technical proposals:
1, the batching of the building waste after acidifying is made up of following component by weight percentage: building waste semi-finished product 90~98%, quick dissolved sodium silicate 0.1~5%, polyvinyl alcohol 0.1~5%, hydroxypropyl methylcellulose 0.01~3% and sodium carbonate 0~3% after acidifying.
2, the production method of the building waste after acidifying: by abrasive dust in the building waste batching input grinding machine after acidifying, grain fineness≤0.074 millimeter, the powder after abrasive dust is the building waste finished product after acidifying.
3, the half-finished production method of the building waste after acidifying: stir in the mixer (1) first input of building waste mixture having been turned round, then dilute sulfuric acid is slowly added and carries out acidification in building waste mixture; (2) by the building waste mixture after acidification, push as building waste tablet thickness≤3 millimeter of building waste tablet by twin rollers; (3) building waste tablet is transported to roasting in swinging drying oven, roasting time is 1~3 hour, sintering temperature is controlled at 250~350 DEG C, building waste tablet water content≤5% after roasting, building waste tablet after roasting is the building waste semi-finished product after acidifying, and PCm is weight percentage.
4, the batching of building waste tablet is made up of following component by weight percentage: building waste mixture 75~95% and dilute sulfuric acid 5~25%.
5, the batching of building waste mixture is made up of following component by weight percentage: building waste 75~92%, Concave-convex clay rod 7~24% and magnesia 0.1~3%.
6, the batching of dilute sulfuric acid is made up of following component by weight percentage: the concentrated sulfuric acid 1~25% that concentration is 98% and water 75~99%, the concentrated sulfuric acid percentage that concentration is 98% is weight percentage.
The production method of the building waste after acidifying takes first acidifying to carry out compounding ingredient again, can avoid sulfuric acid and quick dissolved sodium silicate, polyvinyl alcohol, hydroxypropyl methylcellulose and sodium carbonate generation chemical reaction, give full play to raw-material characteristic separately in batching, and obtain complementation, guarantee the building waste inherent quality after acidifying.
According to the needs of product quality, adopt sodium carbonate to adjust the building waste pH value after acidifying, method is simple.
After the acidified calcination process of building waste, pH value is controlled at 5.5~7.0, can improve the utilization rate of building waste, not only can bring good economic benefit, environmental benefit and social benefit, and can realize and turning waste into wealth.
The good laxity of building waste, adsorptivity, thixotropy, plasticity and close-burning feature after acidifying.
Building waste after acidifying is applicable to produce Nutrition Soil, environment-friendly materials and Landscape Material.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
1, the batching of the building waste after acidifying is made up of following component by weight percentage: building waste semi-finished product 95.5%, quick dissolved sodium silicate 2.2%, polyvinyl alcohol 1.5%, hydroxypropyl methylcellulose 0.79% and sodium carbonate 0.01% after acidifying.
2, the production method of the building waste after acidifying: by abrasive dust in the building waste batching input grinding machine after acidifying, grain fineness≤0.074 millimeter, the powder after abrasive dust is the building waste finished product after acidifying.
3, the half-finished production method of the building waste after acidifying: stir in the mixer (1) first input of building waste mixture having been turned round, then dilute sulfuric acid is slowly added and carries out acidification in building waste mixture; (2) by the building waste mixture after acidification, push as building waste tablet thickness≤3 millimeter of building waste tablet by twin rollers; (3) building waste tablet is transported to roasting in swinging drying oven, roasting time is 2 hours, sintering temperature is controlled at 300~350 DEG C, building waste tablet water content≤5% after roasting, and the building waste tablet after roasting is the building waste semi-finished product after acidifying.
4, the batching of building waste tablet is made up of following component by weight percentage: building waste mixture 80% and dilute sulfuric acid 20%.
5, the batching of building waste mixture is made up of following component by weight percentage: building waste 80%, Concave-convex clay rod 18% and magnesia 2%.
6, the batching of dilute sulfuric acid is made up of following component by weight percentage: the concentrated sulfuric acid 6% that concentration is 98% and water 94%.

Claims (7)

1. the building waste after an acidifying, it is characterized in that, the building waste batching after acidifying is made up of following component by weight percentage: building waste semi-finished product 90~98%, quick dissolved sodium silicate 0.1~5%, polyvinyl alcohol 0.1~5%, hydroxypropyl methylcellulose 0.01~3% and sodium carbonate 0~3% after acidifying.
2. the production method of the building waste after acidifying according to claim 1, is characterized in that, by abrasive dust in the building waste batching input grinding machine after acidifying, and grain fineness≤0.074 millimeter, the powder after abrasive dust is the building waste finished product after acidifying.
3. the half-finished production method of building waste after acidifying according to claim 1, is characterized in that, stirs, then dilute sulfuric acid is slowly added and in building waste mixture, carries out acidification in the mixer (1) first input of building waste mixture having been turned round; (2) by the building waste mixture after acidification, push as building waste tablet thickness≤3 millimeter of building waste tablet by twin rollers; (3) building waste tablet is transported to roasting in swinging drying oven, roasting time is 1~3 hour, sintering temperature is controlled at 250~350 DEG C, building waste tablet water content≤5% after roasting, and the building waste tablet after roasting is the building waste semi-finished product after acidifying.
4. the batching of building waste tablet according to claim 3, is characterized in that, the batching of building waste tablet is made up of following component by weight percentage: building waste mixture 75~95% and dilute sulfuric acid 5~25%.
5. the batching of building waste mixture according to claim 4, is characterized in that, the batching of building waste mixture is made up of following component by weight percentage: building waste 75~92%, Concave-convex clay rod 7~24% and magnesia 0.1~3%.
6. the batching of dilute sulfuric acid according to claim 4, is characterized in that, the batching of dilute sulfuric acid is made up of following component by weight percentage: the concentrated sulfuric acid 1~25% that concentration is 98% and water 75~99%.
7. the batching of building waste mixture according to claim 5, is characterized in that grain fineness≤2 millimeter of building waste, grain fineness≤5 millimeter of Concave-convex clay rod.
CN201410379084.4A 2014-08-04 2014-08-04 Building waste after acidifying Active CN104128359B (en)

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CN104128359B CN104128359B (en) 2016-05-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105000991A (en) * 2015-07-27 2015-10-28 蒋文兰 Production method for construction waste carbonized nutritional soil

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01151937A (en) * 1987-12-09 1989-06-14 Nippon Light Metal Co Ltd Adsorbent for filtration of edible oil
CN1172088A (en) * 1997-07-31 1998-02-04 陈一达 Garbage disposal resource technology
RU2293706C2 (en) * 2004-07-26 2007-02-20 Ооо "Гипрохим-Технолог" Method of production of calcium carbide
CN101028628A (en) * 2006-03-03 2007-09-05 尹小林 Method for treating urban domestic refuse by cement kiln
CN101830673A (en) * 2010-05-14 2010-09-15 武汉理工大学 Method for preparing masonry mortar by using construction wastes
CN102617076A (en) * 2012-03-26 2012-08-01 鞍山全益居环保建材有限公司 Unsteamed concrete air-filled insulating brick produced from building waste, and production method thereof
CN103265213A (en) * 2013-05-26 2013-08-28 许盛英 Powdery attapulgite foaming agent

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01151937A (en) * 1987-12-09 1989-06-14 Nippon Light Metal Co Ltd Adsorbent for filtration of edible oil
CN1172088A (en) * 1997-07-31 1998-02-04 陈一达 Garbage disposal resource technology
RU2293706C2 (en) * 2004-07-26 2007-02-20 Ооо "Гипрохим-Технолог" Method of production of calcium carbide
CN101028628A (en) * 2006-03-03 2007-09-05 尹小林 Method for treating urban domestic refuse by cement kiln
CN101830673A (en) * 2010-05-14 2010-09-15 武汉理工大学 Method for preparing masonry mortar by using construction wastes
CN102617076A (en) * 2012-03-26 2012-08-01 鞍山全益居环保建材有限公司 Unsteamed concrete air-filled insulating brick produced from building waste, and production method thereof
CN103265213A (en) * 2013-05-26 2013-08-28 许盛英 Powdery attapulgite foaming agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105000991A (en) * 2015-07-27 2015-10-28 蒋文兰 Production method for construction waste carbonized nutritional soil

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Address after: 211700 Yulan Avenue 38-2, Xuyi County Economic Development Zone, Huaian City, Jiangsu Province

Patentee after: Jiangsu Shiao Nonmetallic Application Technology Co., Ltd.

Address before: 211700 Huaian, Xuyi province Timor King international residential area, building 2, unit 202 room 18

Patentee before: Xu Sheng Ying

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