CN103922674B - Method for producing light-weight wall material by using papermaking white clay - Google Patents
Method for producing light-weight wall material by using papermaking white clay Download PDFInfo
- Publication number
- CN103922674B CN103922674B CN201410143027.6A CN201410143027A CN103922674B CN 103922674 B CN103922674 B CN 103922674B CN 201410143027 A CN201410143027 A CN 201410143027A CN 103922674 B CN103922674 B CN 103922674B
- Authority
- CN
- China
- Prior art keywords
- parts
- wall material
- aqua
- water
- paper
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a method for producing a light-weight wall material by using papermaking white clay. The method comprises the steps of preparing the following components in percentage by mass: 60-70% of papermaking white clay, 5-10% of zirconium-silicate slag, 20-30% of Portland cement and 1-5% of an enhanced water-releasing agent and mixing uniformly, preparing into concrete slurry having a required flowability, curing and molding, wherein the enhanced water-releasing agent is a mixed solution prepared by dissolving 4-5 parts of sodium sulfate, 7-8 parts of triethanolamine, 15-18 parts of saccharide sodium, 25-30 parts of sodium methyl sulfonate and 40-45 parts of calcium lignin sulfonate in water. The wall material prepared by the method disclosed by the invention has the advantages of good compressive strength, good heat insulation property, low density and light self-weight.
Description
Technical field
The present invention relates to a kind of method that paper white sludge produces light wall material, belong to utilization of waste material and building material technical field.
Background technology
According to the data of Chinese papermaking association, ended for the end of the year 2012, China's paper and paperboard output and consumption exceed the U.S. in continuous 3 years, and all rank first in the world, reach 9,930 ten thousand tons, papermaking output and consumption account for 23.3% and 23.1% of world's total amount respectively.
Shandong Province is the large province of papermaking, and 2012 annual production are 1,710 ten thousand tons, account for 17% of national ultimate production, the continuous 18 years positions that are the first in the nation.Our province paper industry water pollution problems while greatly developing papermaking enterprise is necessarily improved, but white clay pollutes and will day by day become the important environment bottleneck affecting papermaking enterprise development.In October, 2013, the environmental protection Room, Shandong Province is held paper white sludge and is administered and comprehensive utilization on-the-spot meeting in Weifang, point out the restriction due to processing cost and technology, and our province is except Some Enterprises has carried out recycling to white clay, and ground landfill or stacking are just selected by most enterprise.This not only wastes a large amount of limestone resources, causes serious secondary pollution to the soil of surrounding and groundwater resource simultaneously.Due to shortage of land resource, landfill disposal is also day by day difficult, and the outdoor white clay stored up also can form dust pollution source, impacts Air quality.Require that strengthening white clay administers and supervision, improves resource utilization, reduces and even stop lime mud discharge, guarantee environmental safety.
By existing technique, often produce 1t paper pulp and approximately produce 1t white clay, and along with newly-built chemical recovery system increasing number, the popularization of China's enterprises in pulp and paper industry, the white clay of generation will proportionally increase considerably and accumulate.
Pulping and paper-making white clay (hereinafter referred to as white clay) is the muddy precipitation by product produced in paper industry causticization process, and its main chemical reactions formula is as follows:
Na
2CO
3+Ca(OH)
2→CaCO
3↓+2NaOH
Emulsion after causticization, through clarification, is isolated sodium hydroxide solution (white liquid) storage, is recycled for pulping and digesting; The white clay of precipitation, through further washing and filtering, reclaims sodium hydroxide wherein, finally obtains the waste residue that water ratio is high.At present, most enterprises adopts the mode process paper white sludge of landfill or stacking, although landfill disposal is simple and easy to do, less investment, but a large amount of land resources need be taken, and due to compacting, rainfall and microbial decomposition in the landfill process of mud, the dissolving of high density percolate and residual alkali can be produced, cause groundwater pollution, meanwhile, also there is risk of collapsing of bursting in large-scale white clay stockyard, become the hidden danger of social danger under the conditions such as severe weather.Therefore, this extensive lime mud treatment mode not only brings the hidden danger of environmental pollution, the wasting of resources and social danger, along with rising and the constantly harsh environmental requirement of soil and management maintenance cost, become one of important factor of restriction Sustainable Development of Enterprises, the resource utilization of seeking white clay recycles the inevitable choice that approach will be papermaking enterprise and the whole society.
The main mineral constituent of white clay is the bad CaCO of granular crystal
3, its particle diameter is 15-25 μm, is a kind of loose porous, solid waste that particle is thin.The water ratio of general paper white sludge at 25-30%, lingering section paper-making fibre and partial organic substances.
Chinese invention patent 201210105925.3 " utilizing paper white sludge to produce the method for autoclaved lime-sand brick ", first by white clay dehydration to water content be 30-35%, again white clay is sent into rotary drum drying machine, 10% is less than to water content by hot air dries, then slaking silos are sent into after stirring with other convenient source of autoclaved lime-sand brick, wherein the consumption of extra dry white wine mud accounts for the 10-50% of the total consumption of brickmaking, digest after four hours, feed bin is sent into again after stirring, fragment of brick base is made with brick pressing machine, and be stacked on small rail car, be delivered to autoclave, still internal pressure is kept to reach the gauge pressure of 0.8MPa, corresponding temperature in the kettle is 170-175 DEG C, carry out maintenance eight hours, to white clay through row drying treatment, complicated process of preparation, cost is higher.
Patent CN102432241A discloses a kind of paper white sludge that utilizes and produces the method for materials for wall, get weight percent be 40 ~ 60% paper white sludge, 20 ~ 45% lithium slag, the cement of 10 ~ 20% and the activity excitant of 1 ~ 6%, add stirrer for mixing; Mixture is distributed in one group of mould, vibratory compaction on the plain bumper being placed in block machine; Described activity excitant to be mixed with potassium aluminium sulfate by polyacrylic acid, polycarboxylate water-reducer and forms; Again the mould that mixture is housed is placed in maintaining box maintenance demoulding after 20 ~ 30 hours that temperature is 15 ~ 25 DEG C and humidity >90%, put into steam-cured 20 ~ 30 hours of the maintaining box that temperature is 60 ~ 80 DEG C again, i.e. obtained materials for wall product.Although adopt the present invention to prepare the qualified materials for wall of performance, the method maintaining process more complicated, production cost is higher.
Light weight concrete is that a kind of profit is useless, environmental protection, energy-conservation, cheap and there is non-flame properties novel building energy-saving material.Light weight concrete (also known as foamed concrete) needs the gases such as air or nitrogen, carbon dioxide gas, oxygen to introduce in concrete mortar according to application by the mode of chemistry or physics, shaping through reasonable maintenance, and formed containing tiny in a large number sealed porosity, and there is the concrete product of suitable intensity.The foaming agent aqueous solution is normally mechanically prepared into foam by the making of light weight concrete.Preparation section and the cost of light weight concrete are higher.
If reasonably papermaking waste can be utilized, use it for the preparation of light material, not only can alleviate the pollution to environment, the production cost of light material can also be reduced, improving SNR, will have obvious social and economic benefits.
Summary of the invention
For the problem of existing paper white sludge contaminate environment and light weight concrete height preparation cost, the present invention proposes a kind of method that paper white sludge produces light wall material, reach energy-saving and emission-reduction, the object of utilization of waste material.
To achieve these goals, the present invention is by the following technical solutions:
A kind of paper white sludge produces the method for light wall material:
The paper white sludge of 60-70%, the zirconium white residue of 5-10%, the silicate cement of 20-30%, the enhancing of 1-5% is by mass percentage released aqua feeding and mixes, and be made into mobility and meet the requirements of concrete slurry, maintenance is shaping; It is that 4-5 part sodium sulfate, 7-8 part trolamine, 15-18 part sugar sodium, 25-30 part novalgin and 40-45 part calcium lignin sulphonate mix the water-soluble mixing solutions obtained by weight that aqua is released in described enhancing.
Described paper white sludge water content is 20-25%, calcium content is 5-10% at 60-70%, residual paper-making fibre.
Described zirconium white residue: be the gum polymers that a kind of water content is higher, major ingredient is siliceous slag (mSiO2nH2O).Zirconium white residue solids content is 20 ± 3wt%, and dioxide-containing silica is 12-16wt%, simultaneously containing a small amount of zircon sand and inclined sodium zirconate etc.Wherein SiO2 is in soft reunion shape in slag, and specific surface area is large, active high.
Described ordinary Portland cement is the 42.5R silicate cement of early-strength type.
The concentration range 5-10% of aqua solute is released in described enhancing.Described enhancing is released aqua and is preferably 5 parts of sodium sulfate, 7 parts of trolamines, 18 parts of sugared sodium, 30 parts of novalgins and 40 parts of water-soluble mixing solutionss obtained of calcium lignin sulphonate mixing by weight.
The present invention has features and beneficial effect:
(1) the present invention is adopted, paper white sludge, zirconium white residue, cement and enhancing are released aqua agent and are mixed, generate flocculence sodium silicate solids gel and a large amount of fibrous hydrated product, white clay particle is in this system, microcrystals and micro aggregate effect are played, be filled in fiber and gel overlaps mutually in the spatial network of formation, make solid gel and fiber nucleation and crystallization and grow up, serve the effect strengthening matrix.
(2) residual in white clay a large amount of staple fibre plays toughness reinforcing effect in concrete, improves the fracture resistance of light weight concrete.
(3) white clay and zirconium white residue are loose porous structures, after mixing cured, leave the space evenly closed, alleviate concrete density and weight in concrete.
(4) strengthen the use releasing aqua and the planar water effectively discharged inside white clay can change into free water, reduce the consumption of external adding water, saved cost; Release the space left by water that aqua discharges, the airtight space of formation also mitigates the deadweight of goods simultaneously.
(5) advantage of the present invention is also; the extensive application of industrial refuse white clay; not only reduce carrying capacity of environment; the manufacturing cost of materials for wall; save a large amount of construction timber; protect farmland, and reach the double effects of curbing environmental pollution and utilizing with refuse comprehensive high-efficiency, facilitate the Sustainable development of paper industry and materials for wall industry.
(6) the inventive method obtained materials for wall has good ultimate compression strength, thermal insulation is good, density is little, from heavy and light.
Embodiment
Further illustrate below in conjunction with preferred embodiment.
Embodiment 1
Feeding also mixes, get that mass percent is the paper white sludge of 65%, aqua is released in zirconium white residue, the ordinary Portland cement of 22%, the enhancing of 3% of 10%, strengthen and release aqua 5 parts of sodium sulfate, 7 parts of trolamines, 18 parts of sugared sodium, 30 parts of novalgins and 40 parts of calcium lignin sulphonates mixing are dissolved in the mixing solutions that 900 parts of water obtain by weight.Be mixed with mobility to meet the requirements of concrete slurry and be prepared from, natural curing, tests its intensity and performance in 28 days.Strength grade, water-absorbent, thermal conductivity etc. meet standard GB/T/T15229-2002, JC/T422-2007 requirement.
Embodiment 2
Feeding also mixes, get that mass percent is the paper white sludge of 68%, aqua is released in zirconium white residue, the ordinary Portland cement of 20%, the enhancing of 5% of 7%, strengthen and release aqua 4 parts of sodium sulfate, 8 parts of trolamines, 15 parts of sugared sodium, 25 parts of novalgins and 42 parts of calcium lignin sulphonates mixing are dissolved in the mixing solutions that 900 parts of water obtain by weight.Be mixed with mobility to meet the requirements of concrete slurry and be prepared from, natural curing, tests its intensity and performance in 28 days.Strength grade, water-absorbent, thermal conductivity etc. meet standard GB/T/T15229-2002, JC/T422-2007 requirement.
Embodiment 3
Feeding also mixes, get that mass percent is the paper white sludge of 60%, aqua is released in zirconium white residue, the ordinary Portland cement of 30%, the enhancing of 3% of 7%, strengthen and release aqua 5 parts of sodium sulfate, 7 parts of trolamines, 17 parts of sugared sodium, 28 parts of novalgins and 45 parts of calcium lignin sulphonates mixing are dissolved in the mixing solutions that 900 parts of water obtain by weight.Be mixed with mobility to meet the requirements of concrete slurry and be prepared from, natural curing, tests its intensity and performance in 28 days.Strength grade, water-absorbent, thermal conductivity etc. meet standard GB/T/T15229-2002, JC/T422-2007 requirement.
Claims (4)
1. produce a method for light wall material with paper white sludge, it is characterized in that,
The paper white sludge of 60-70%, the zirconium white residue of 5-10%, the silicate cement of 20-30%, the enhancing of 1-5% is by mass percentage released aqua feeding and mixes, and be made into mobility and meet the requirements of concrete slurry, maintenance is shaping; It is that 4-5 part sodium sulfate, 7-8 part trolamine, 15-18 part sugar sodium, 25-30 part novalgin and 40-45 part calcium lignin sulphonate mix the water-soluble mixing solutions obtained by weight that aqua is released in described enhancing.
2. a kind of paper white sludge according to claim 1 produces the method for light wall material, it is characterized in that, described paper white sludge water content is 20-25%, calcium content is 5-10% at 60-70%, residual paper-making fibre.
3. a kind of paper white sludge according to claim 1 produces the method for light wall material, and it is characterized in that, the concentration range 5-10% of aqua solute is released in described enhancing.
4. a kind of paper white sludge according to claim 1 produces the method for light wall material, it is characterized in that, described enhancing is released aqua and is elected 5 parts of sodium sulfate, 7 parts of trolamines, 18 parts of sugared sodium, 30 parts of novalgins and 40 parts of water-soluble mixing solutionss obtained of calcium lignin sulphonate mixing by weight as.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143027.6A CN103922674B (en) | 2014-04-10 | 2014-04-10 | Method for producing light-weight wall material by using papermaking white clay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143027.6A CN103922674B (en) | 2014-04-10 | 2014-04-10 | Method for producing light-weight wall material by using papermaking white clay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103922674A CN103922674A (en) | 2014-07-16 |
| CN103922674B true CN103922674B (en) | 2015-07-08 |
Family
ID=51141104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410143027.6A Expired - Fee Related CN103922674B (en) | 2014-04-10 | 2014-04-10 | Method for producing light-weight wall material by using papermaking white clay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103922674B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325727B (en) * | 2014-10-13 | 2016-01-20 | 山东理工大学 | The preparation method of the heat insulation integrated light wall material of red mud expanded pearlite decorative |
| CN105036640A (en) * | 2015-06-29 | 2015-11-11 | 任新年 | Damp-proof waterproof binder for building and preparation method of damp-proof waterproof binder |
| CN107089837A (en) * | 2017-05-17 | 2017-08-25 | 山东建筑大学 | A kind of method that porous ceramics is prepared with paper white sludge discarded object |
| CN109942313A (en) * | 2019-03-11 | 2019-06-28 | 江苏华友装饰工程有限公司 | Light wall material and preparation method thereof |
| CN114751716B (en) * | 2022-03-30 | 2023-05-12 | 深圳大学 | Artificial stone and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1954983A (en) * | 2005-10-24 | 2007-05-02 | 南京理工大学 | Method for preparing bearing steam-pressing aero-concrete using chemical clay-slag |
| CN102432241A (en) * | 2011-09-29 | 2012-05-02 | 绵阳西南科大瑞方科技有限公司 | Method for producing walling material by using papermaking white mud |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57135761A (en) * | 1981-02-09 | 1982-08-21 | Ibigawa Electric Ind Co Ltd | Calcium silicate-resin composite body and manufacture |
-
2014
- 2014-04-10 CN CN201410143027.6A patent/CN103922674B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1954983A (en) * | 2005-10-24 | 2007-05-02 | 南京理工大学 | Method for preparing bearing steam-pressing aero-concrete using chemical clay-slag |
| CN102432241A (en) * | 2011-09-29 | 2012-05-02 | 绵阳西南科大瑞方科技有限公司 | Method for producing walling material by using papermaking white mud |
Non-Patent Citations (2)
| Title |
|---|
| 刘来宝等.造纸白泥在新型墙体材料中的应用及性能研究.《新型建筑材料》.2013,(第4期),22-25,29. * |
| 造纸厂白泥废料制备加气混凝土的试验研究;曹晓梅等;《混凝土》;20130131(第279期);第142-144、147页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103922674A (en) | 2014-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP4129949A1 (en) | Unfired construction material using original state shielding soil and preparation method therefor | |
| CN103922674B (en) | Method for producing light-weight wall material by using papermaking white clay | |
| CN101637936B (en) | Method for producing baking-free bricks by using phosphorous gypsum based cementitious material to solidify yellow phosphorous slags | |
| CN102795831B (en) | Deep foundation pit soil-sintered porous brick and production method thereof | |
| CN103964786B (en) | A kind of method utilizing paper white sludge and quartz slate waste to produce calcium silicon plate | |
| CN102584322B (en) | Preparation method for pulverized coal-ash-based porous artificial stone | |
| CN103951327B (en) | A kind of discarded vitrified brick powder baking-free ceramicite and preparation method | |
| CN104003674B (en) | A kind of calcium silicate board with microporous and production method thereof | |
| CN105948803A (en) | Preparing method for aerated concrete products | |
| CN104230280A (en) | Low-shrinkage sludge ceramsite alkali-activated full-slag foam concrete plate and preparation method thereof | |
| CN110642559B (en) | Coal ash geopolymer foam concrete and preparation method thereof | |
| CN106242614A (en) | Utilize the method that building waste fine powder develops ultralight foam concrete | |
| CN103833298A (en) | Slope protection material and preparation method thereof | |
| CN104649636B (en) | A kind of regeneration concrete heat insulation building block and manufacture method | |
| CN111170669A (en) | Artificial recycled aggregate prepared from engineering waste soil and preparation method thereof | |
| CN103951367B (en) | A kind of take paper white sludge as plasterboard of main raw material and preparation method thereof | |
| CN108046824A (en) | High-strength silicate haydite of maintenance and preparation method thereof in steel fibre toughening | |
| CN115215597A (en) | Shield slag slurry alkali-activated regenerated mortar and preparation method and application thereof | |
| CN111807776A (en) | Inorganic polymer novel lightweight concrete and preparation method thereof | |
| CN109180107A (en) | Fibre cement product and its preparation method and application | |
| CN112479667A (en) | Multielement solid waste concrete building block and preparation method thereof | |
| CN103964785A (en) | Method for producing calcium silicate board from artificial stone plate wastes and quartz stone plate wastes | |
| CN111233409A (en) | Method for preparing water-permeable non-fired product by utilizing shield muck | |
| CN108706944B (en) | Phosphogypsum light board prepared from barium slag and preparation method thereof | |
| CN102070322B (en) | Method for preparing high-strength ceramic wall material from papermaking causticized white mud residues |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20170410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |