CN101456686A - Novel industrial waste gypsum self forming energy-saving process - Google Patents
Novel industrial waste gypsum self forming energy-saving process Download PDFInfo
- Publication number
- CN101456686A CN101456686A CNA2007101925599A CN200710192559A CN101456686A CN 101456686 A CN101456686 A CN 101456686A CN A2007101925599 A CNA2007101925599 A CN A2007101925599A CN 200710192559 A CN200710192559 A CN 200710192559A CN 101456686 A CN101456686 A CN 101456686A
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- China
- Prior art keywords
- gypsum
- industrial waste
- waste gypsum
- forming energy
- saving process
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- 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.)
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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
- C04B28/14—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 calcium sulfate cements
- C04B28/142—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/143—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
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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
- C04B28/14—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 calcium sulfate cements
- C04B28/142—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
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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
- C04B28/14—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 calcium sulfate cements
- C04B28/142—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
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- 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)
- 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
The invention relates to a novel self-curing and shaping energy-saving process for industrial waste gypsum, and belongs to the technical field of building material. The industrial waste gypsum is mixed with modifying and solidifying agent and shaped into a gypsum bar capable of self-curing and drying. The modifying and solidifying agent is prepared by two or a plurality of lime, magnesite, cement, acetylene sludge, bentonite, fluorite powder, attapulgite powder, industrial residue powder, water glass, eleven salt classes such as sulfate and the like, boric acid, alcohol amine, isopropanol amine, polyvinyl alcohol, water-soluble cellulose, glutaric acid, butane diacid, tartaric acid and water-reducing agent. The process is used for preparing solidification adjusting agent or preparing gypsum powder in the cement manufacturing industry, has the advantages of simple technology, low investment and excellent performance, changes waste into valuable, saves energy and reduces consumption.
Description
Technical field:
The present invention relates to a kind of material of construction, be specifically related to a kind of novel industrial waste gypsum self forming energy-saving process, be the comprehensive utilization of industrial residue resource.
Background technology:
China is manufacture of cement big country, and the manufacture of cement total scale is nearly 1,400,000,000 tons at present, and year needs about 7,000 ten thousand tons of gypsum adjustable solidification agent.On the one hand, available plaster of paris resource part area is closely exhausted, more than the substantial appreciation of prices to 200 yuan/ton, on the other hand, a large amount of industrial waste gypsums can not use maybe can not use because of the cement mill arbitrarily to be stored up or landfill, has both wasted resource, also influences the water and soil environment.
Existing successful industrial waste gypsum treatment process is a thermal treatment process technology, soon behind the waste gypsum drying and dewatering, is powdery, adds the water balling-up again, and the cement mill is supplied with in oven dry then again.Handle that investment is big, cost is higher, also waste energy, and modification is not thorough, influence cement performance, the cement mill can only be used waste gypsum pellet and plaster of paris collocation, therefore, press for now a kind of less investment, to the waste gypsum modification thoroughly, can replace the new energy-saving process technology of the plaster of paris fully.
Summary of the invention:
Technical problem to be solved by this invention is: solve the problem that above-mentioned prior art exists, and provide that a kind of technology is simple, less investment, to the industrial waste gypsum modification thoroughly, can save the novel industrial waste gypsum self forming energy-saving process of a large amount of oven dry energy consumptions.
The technical solution used in the present invention is: adopt industrial waste gypsum to add modified firming agent mixing aftershaping for can solidify exsiccant gypsum charge bar voluntarily, be used for cement manufacturing industry and do adjustable solidification agent or be used to make terra alba.
In the technique scheme, described industrial waste gypsum is the waste residue based on calcium sulfate that produces in waste gypsum in phosphogypsum, fluorgypsum, lemon gypsum, desulfurized gesso of flue gas, the titanium white production or the industrial production.
In the technique scheme, described modified firming agent refer to be to eliminate soluble phosphate in the waste gypsum, fluorophosphate, fluorochemical, Citrate trianion etc. to the negative impact of cement performance, promote the compound additive of cement quality and curing molding charge bar, or promote the modified solidified component that the gypsum performance is added for the system terra alba.
In the technique scheme, described modified firming agent adopts two kinds or multiple composite forming in lime, magnesia, cement, carbide slag, wilkinite, Fluorspar Powder, attapulgite, industrial residue powder, water glass, vitriol, villaumite, boric acid and borate, silicofluoride, permanganate, dichromate, perchlorate, aluminate, hydramine, Yi Bingchunan, polyvinyl alcohol, water soluble cellulose and metal carboxylate, pentanedioic acid, Succinic Acid, tartrate, sulfonated lignin, humate and all kinds of water reducer.
In the technique scheme, the weight part proportioning of industrial waste gypsum and modified firming agent is 70～99:30～1, looks the moulding process requirement and can add an amount of moulding moisture content.
In the technique scheme, described employing industrial waste gypsum adds modified firming agent mixing aftershaping for can solidify voluntarily in the exsiccant gypsum charge bar, and moulding is meant employing roller single-lead-screw extruding briquetting machine, to being rolled into press or all kinds of extrusion shaping machine the blended gypsum composite is made solid charge bar or hollow charge bar.Chinese patent 200620051850.5 " the novel concrete raw material shaper " that provided for example, " the powder shaper of band demoulding strip " that Chinese patent 200620052561.7 is provided, " the cement slurry flat-die roller single-lead-screw extruding briquetting machine " that Chinese patent 200620052557.0 is provided, " the cement slurry ring mould roller single-lead-screw extruding briquetting machine " that Chinese patent 200620052526.6 is provided, " a kind of ring mould roller single-lead-screw extruding briquetting machine of novel texture " that " the energy-saving ring mould roller single-lead-screw extruding briquetting machine " that Chinese patent 200720063517.0 is provided, Chinese patent 200720064841.4 are provided.
In the technique scheme, industrial waste gypsum and modified firming agent are generally Powdered, can mix, as bulk occur, and macrobead gets final product with the pulverizer pulverizing.
The present invention has following remarkable advantage:
1, simple, the less investment of technology, instant effect can be handled a large amount of industrial waste gypsums.
2, need not to dry, can save a large amount of oven dry energy consumptions.
3, the industrial waste gypsum modification is thorough, and gypsum charge bar performance is better than the plaster of paris, can replace the plaster of paris fully and be used to make cement.Enterprise can promote the terra alba quality significantly for the system terra alba.
Description of drawings:
Fig. 1 is a process flow sheet of the present invention
Embodiment:
Technical requirements:
1. according to the physics and the chemical property of different types of industrial waste gypsum, add corresponding modification component, effectively eliminate the influence of detrimental impurity wherein.
2. in waste gypsum, add the self cure component, effectively utilize the moisture content in the industrial waste gypsum can add moulding moisture content in case of necessity as moulding moisture content and the required moisture content of curing.
3. adjust and solidify component to adjust the intensity and the seasoning time of gypsum charge bar.
Embodiment 1:
The somewhere phosphogypsum is the moisture bulk cargo of grey, nature moisture content 18.7%, soluble phosphate and fluorophosphate content 2.74%, select lime for use, magnesia, flyash, vitriolate of tartar, water reducer FDN is re-dubbed modified firming agent, phosphogypsum by weight: modified firming agent=70: 30 mixed, be shaped to Φ 10mm gypsum charge bar with the roller single-lead-screw extruding briquetting machine, 2 days time of drying of self cure, the cement mill simultaneous test, the gypsum charge bar uses over-all properties all to be better than the plaster of paris, intensity contrast 3d improves 1.71MPa, and 28d improves 2.3MPa, and the time of coagulation and the plaster of paris are suitable.
Embodiment 2:
Certain power plant desulfurization gypsum is faint yellow bulk cargo, water content 13.4%, select for use methylcellulose gum, vitriolate of tartar, lime to be re-dubbed modified firming agent, desulfurated plaster by weight: modified firming agent=99: 1 mixed, extrusion molding are Φ 8mm charge bar, 3 days time of drying of spontaneous curing, be used for cement mill and plaster of paris simultaneous test, time of coagulation is suitable, and intensity improved 1.83MPa in 3 days, and intensity improved 3.1MPa in 28 days.
Embodiment 3:
Certain Citric Acid Plant waste gypsum, grey black, water content 23.4%, the foreign odor flavor is arranged, select for use lime, wilkinite, slag powders, potassium permanganate, water reducer UF, trolamine, vitriolate of tartar to be re-dubbed modified firming agent, press the lemon gypsum: modified firming agent=89: 11 mixed, extrusion molding is a Φ 8mm charge bar, solidify 3 days time of drying voluntarily, the foreign odor flavor is eliminated fully, be used for cement mill and plaster of paris simultaneous test, only prolong 5min time of coagulation, intensity improved 3.31MPa in 3 days, and intensity improved 4.73MPa in 28 days.
Claims (5)
1, a kind of novel industrial waste gypsum self forming energy-saving process is characterized in that adopting industrial waste gypsum to add modified firming agent mixing aftershaping for can solidify exsiccant gypsum charge bar voluntarily, is used for cement manufacturing industry and does adjustable solidification agent or be used to make terra alba.
2, industrial waste gypsum modified self-curing forming energy-saving novel process according to claim 1 is characterized in that described industrial waste gypsum is the waste residue based on calcium sulfate that produces in waste gypsum in phosphogypsum, fluorgypsum, lemon gypsum, desulfurized gesso of flue gas, the titanium white production or the industrial production.
3, novel industrial waste gypsum self forming energy-saving process according to claim 1 is characterized in that described gypsum charge bar refers to adopt the roller single-lead-screw extruding briquetting machine, to being rolled into press or extrusion shaping machine the blended gypsum composite made solid charge bar or hollow charge bar.
4, novel industrial waste gypsum self forming energy-saving process according to claim 1 is characterized in that described modified firming agent adopts lime, magnesia, cement, carbide slag, wilkinite, Fluorspar Powder, attapulgite, the industrial residue powder, water glass, vitriol, villaumite, boric acid and borate, silicofluoride, permanganate, dichromate, perchlorate, aluminate, hydramine, Yi Bingchunan, polyvinyl alcohol, water soluble cellulose, metal carboxylate, pentanedioic acid, Succinic Acid, tartrate, sulfonated lignin, two kinds or multiple composite forming in humate and all kinds of water reducer.
5, novel industrial waste gypsum self forming energy-saving process according to claim 1 is characterized in that the weight part proportioning of industrial waste gypsum and modified firming agent is 70～99: 30～1, looks the moulding process requirement and can add an amount of moulding moisture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101925599A CN101456686A (en) | 2007-12-10 | 2007-12-10 | Novel industrial waste gypsum self forming energy-saving process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101925599A CN101456686A (en) | 2007-12-10 | 2007-12-10 | Novel industrial waste gypsum self forming energy-saving process |
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| Publication Number | Publication Date |
|---|---|
| CN101456686A true CN101456686A (en) | 2009-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101925599A Pending CN101456686A (en) | 2007-12-10 | 2007-12-10 | Novel industrial waste gypsum self forming energy-saving process |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241487A (en) * | 2011-03-29 | 2011-11-16 | 丁立峰 | Modified gypsum, preparation method and preparation system for the same |
| CN102503053A (en) * | 2011-10-28 | 2012-06-20 | 北京建筑材料科学研究总院有限公司 | Early-strength sludge modifier for landfill treatment and application thereof |
| CN103232180A (en) * | 2013-04-27 | 2013-08-07 | 丁海军 | Composition and application thereof |
| CN104174633A (en) * | 2014-08-06 | 2014-12-03 | 许盛英 | Acidified lime residue |
| WO2017004120A1 (en) * | 2015-06-30 | 2017-01-05 | Dow Global Technologies Llc | Gypsum compositions containing crosslinked cellulose ethers for mortars with reduced stickiness |
| CN108328956A (en) * | 2018-01-09 | 2018-07-27 | 解增信 | A kind of processing and treating method replacing the natural gypsum using ardealite |
| CN109678369A (en) * | 2018-12-24 | 2019-04-26 | 铜陵上峰水泥股份有限公司 | A kind of polynary solid waste prepares the production technology and method of cement |
| CN110668777A (en) * | 2019-11-12 | 2020-01-10 | 山东理工大学 | Titanium gypsum road curing agent, and preparation and application methods thereof |
| WO2020199400A1 (en) * | 2019-04-04 | 2020-10-08 | 北新集团建材股份有限公司 | Machine-spraying surface gypsum plaster having purification function and preparation method therefor |
| CN113403474A (en) * | 2021-06-21 | 2021-09-17 | 广西三秋树环保科技有限公司 | Adhesive, preparation method and application thereof |
-
2007
- 2007-12-10 CN CNA2007101925599A patent/CN101456686A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241487A (en) * | 2011-03-29 | 2011-11-16 | 丁立峰 | Modified gypsum, preparation method and preparation system for the same |
| CN102503053A (en) * | 2011-10-28 | 2012-06-20 | 北京建筑材料科学研究总院有限公司 | Early-strength sludge modifier for landfill treatment and application thereof |
| CN103232180A (en) * | 2013-04-27 | 2013-08-07 | 丁海军 | Composition and application thereof |
| CN103232180B (en) * | 2013-04-27 | 2014-07-09 | 丁海军 | Composition and application thereof |
| CN104174633A (en) * | 2014-08-06 | 2014-12-03 | 许盛英 | Acidified lime residue |
| CN104174633B (en) * | 2014-08-06 | 2016-06-08 | 许盛英 | Lime residue after acidifying |
| WO2017004120A1 (en) * | 2015-06-30 | 2017-01-05 | Dow Global Technologies Llc | Gypsum compositions containing crosslinked cellulose ethers for mortars with reduced stickiness |
| US10494303B2 (en) | 2015-06-30 | 2019-12-03 | Dow Global Technologies Llc | Gypsum compositions containing crosslinked cellulose ethers for mortars with reduced stickiness |
| CN108328956A (en) * | 2018-01-09 | 2018-07-27 | 解增信 | A kind of processing and treating method replacing the natural gypsum using ardealite |
| CN109678369A (en) * | 2018-12-24 | 2019-04-26 | 铜陵上峰水泥股份有限公司 | A kind of polynary solid waste prepares the production technology and method of cement |
| WO2020199400A1 (en) * | 2019-04-04 | 2020-10-08 | 北新集团建材股份有限公司 | Machine-spraying surface gypsum plaster having purification function and preparation method therefor |
| CN110668777A (en) * | 2019-11-12 | 2020-01-10 | 山东理工大学 | Titanium gypsum road curing agent, and preparation and application methods thereof |
| CN113403474A (en) * | 2021-06-21 | 2021-09-17 | 广西三秋树环保科技有限公司 | Adhesive, preparation method and application thereof |
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Application publication date: 20090617 |