CN107488019A - A kind of non-sintered gold tailings brick and its preparation technology - Google Patents
A kind of non-sintered gold tailings brick and its preparation technology Download PDFInfo
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- CN107488019A CN107488019A CN201710818078.8A CN201710818078A CN107488019A CN 107488019 A CN107488019 A CN 107488019A CN 201710818078 A CN201710818078 A CN 201710818078A CN 107488019 A CN107488019 A CN 107488019A
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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
- C04B28/10—Lime cements or magnesium oxide 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
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Abstract
The present invention provides a kind of non-sintered gold tailings brick and its preparation technology, wherein, non-sintered gold tailings brick includes following component and its parts by weight：9 13 parts of 50 76 parts of gold tailings powder, 20 32 parts of calcium carbonate, 10 32 parts of flyash, 10 18 parts of calcium lime powder, 13 parts of gypsum powder, 17 parts of siliceous material, 0.5 2.5 parts of F14 exciting agents, 0.5 5 parts of heavy metal stabilizer, 15 parts of latex powder and water.A kind of preparation technology of non-sintered gold tailings brick, including drying, rolling mixing, compound digestion, repetition rolling, shaped by fluid pressure and the maintenance of product blank.Have the beneficial effect that：The innoxious utilization of resources is carried out to gold tailings, marble mine tailing, flyash the like waste, has accomplished twice laid, has turned waste into wealth.
Description
Technical field
The present invention relates to twice laid technical field, specifically a kind of non-sintered gold tailings brick and its preparation technology.
Background technology
Gold tailings powder is the unemployed solid or powdered scrap discharged after exploitation, sorting ore.Or adopt
Extracted gold from the ore powder discharged after concentrate with cyanidation gold-extracted method, alkali solution technique etc..Gold tailings are mainly by SiO2、CaO、
A12O3And a certain amount of Fe2O3, the oxide such as MgO composition.
Because gold tailings powder is handled with the expansion of golden production scale and prolonging for production history using bin system more
Long, gold tailings powder heap accumulated amount is growing day by day, does not only take up a large amount of soils.Heavy metal ion that mine tailing includes pollution air,
Table water and underground water, and many Tailings Dams exceed the time limit or excess load uses, or even violation operation, Tailings Dam causes and safety too
Hidden danger, maintenance, management input are huge.Accelerate to promote the processing of gold tailings powder and comprehensively utilize extremely urgent.
Gold tailings are put into《National Hazard waste register》Hw33 registers are numbered；In April, 2010, industry and informationization
Relevant department's issue such as portion, the Department of Science and Technology, Ministry of Land and Resources, national security supervision general bureau《Comprehensive of metal tailings utilize special rule
Draw》（2010-2015）Wherein gold tailings are also put into the major fields of comprehensive utilization of tailing.At present, China's metal tailings
Comprehensive utilization ratio it is average less than 10%, lag behind other popular solid waste significantly.From environmental protection angle, it is necessary to
These mine tailings are handled, avoid secondary pollution：From utilization of resources angle, change that gold tailings powder is used is useless
For treasured, turn harm into good, be even more " rising industry ", alleviate China's economic development and the protrusion of environmental destruction, shortage of resources is given
Matter.
Gold tailings turn into restricts an important factor for Sustainable Development of Mine jeopardizes mining area and periphery ecological environment.In resource
Increasingly exhausted, today that environmental consciousness increasingly strengthens, it is Sustainable Development of Mine to open up comprehensive utilization ways of a variety of gold tailings
Inevitable choice.
At present, gold tailings powder specific aim treatment technology is less, and alkaline chlorination process processing and pressure filtration and dry heaping have processing and imitated
The unstable mine tailing bearing capacity of fruit is limited to need the shortcomings of long term maintenance is with managing；Bioanalysis and natural degradation method concentration for the treatment of
It is low, process is slow：Spoil reclaming extracts gold, silver, zinc etc. from mine tailing, can improve resource recovery, cheat enterprise bring it is huge
Big economic benefit, but have that treatment scale is small, and the rate of recovery is low, and the secondary mine tailing carried after essence still suffers from secondary environmental pollution and asked
Topic, it is impossible to fundamentally reduce mine tailing quantity.Gold tailings can be largely dissolved using gold tailings production construction material, are solved
Perplex the problem of environmental pollution in mine tailing area.
Marble mine tailing the sharp increase of marble application amount, exploits scale with the development of Chinese Urbanization building constructions industry
Expansion, marble mine tailing significantly increases, the marble mine tailing of the discarded by mineral separation on mining area stacking pressure such as mountain, takes substantial amounts of accumulation
Land used, caused by land resource waste and environmental destruction.Problem is even more " bad old practices die hard ".
Non-burning brick experimental study [D] the Xi'an University of Architecture and Technologys of prior art such as king interwined dragon mill tailings dry-pressing,
2009. disclose and a kind of prepare the non-burning brick method of dry-pressing using mill tailings.Non-burning brick anti-folding prepared by the above method is strong
Degree, compression strength excellent effect, but frost-proof test is poor, and heavy metal is easily leached in brick, contaminated soil and water.
The content of the invention
An object of the present invention be to provide a kind of rupture strength, compression strength, frost-proof test it is excellent, in brick
Heavy metal is cured in consolidating agent lattice, and chemical property is stable, will not be leached, and does not produce radgas, no pathogeny body,
The non-sintered gold tailings brick of virus, foul gas and organic humus.
The second object of the present invention is that provide one kind adds without cement, and non-sintered, preparation method is simple, and cost is cheap
The preparation technology of non-sintered gold tailings brick.Realize and be but better than cement without cement, for exploitation low energy expenditure, realize warp
The sustainable development of Ji, society and environment, there is the meaning of reality.
The present invention is directed to the problem of being mentioned in background technology, and the technical scheme taken is：A kind of non-sintered gold tailings brick,
Including following component and its parts by weight：Gold tailings powder 50-76 parts, calcium carbonate 20-32 parts, flyash 10-32 parts, calcium lime powder
10-18 parts, gypsum powder 1-3 parts, siliceous material 1-7 parts, F14 exciting agent 0.5-2.5 parts, heavy metal stabilizer 0.5-5 parts, breast
Rubber powder 1-5 parts and water 9-13 parts.
Gold tailings powder is to be deposited in when gold concentrate is exploited after the mine tailing or spoil reclaming of mine discharge in Tailings Dam
Gold ore mine tailing；SiO in the gold tailings powder2Content be 65-80%, AL2O3Content be that 5-15%, CaO content is
1-4%, MgO content are 3-8%, K2O content is 0.5-3%, Na2O content is 1-5%, Fe2O3Content be 0.5-6%；It is yellow
The granularity of gold mine tailings powder is less than 180 mesh.
By chemical activation and physically activated technology, the SiO that gold tailings and flyash are included2、CaO、A12O3Etc. having
Effect composition is processed into the silicate of solidification effect, the calcium carbonate of aluminate and generation containing active component, gives brick body mixing
The compound complementation that waste residue increases calcium, replenished the calcium, strengthen brick strength.It is used cooperatively using other compositions in consolidating agent and formula,
Coagulating agent of the alternative traditional cement as fragment of brick, while hydrated silicate and aquation the aluminate filling generated is non-burning brick
Internal void and pore, improve pore structure, improve non-burning brick density, rupture strength, compression strength and freeze thawing resistance
Excellent durability.Using the ionic reaction and chelation of heavy metal stabilizer, by the heavy metals immobilization in gold tailings in weight
In metallic stabilizer lattice, the redox potential of heavy metal is controlled, there is the heavy metals such as existing Cu, Ag, As insoluble
Scope, generate the metallic compound not leached out under stable usual environment, do not produce radgas, at the same eliminate mine tailing,
Pathogen, virus, foul gas and organic humus in hazardous waste.
To optimize above-mentioned technical proposal, the measure taken also includes：Ore dressing is discharged when calcium carbonate is mining marble
Not available waste residue, composition includes calcite, lime stone, serpentine and dolomite, its CaCO3Content is more than 50%, grain
Degree is less than 150 mesh；Siliceous material is the flue dust that industrial furnace escapes during high melt industrial silicon and ferrosilicon with waste gas,
The SILICA FUME of processing is collected through special capturing device；The solid waste that flyash dumps for power plant, its SiO2Content 55% with
On, Al2O3Content 24%, above loss on ignition≤4.2%.By refuse reclamation, not only reduced environmental pollution but also save raw material into
This, the sustainable development to realizing economic, society and environment, has the meaning of reality.
Quality of the weight/mass percentage composition more than 80%, MgO that calcium lime powder is CaO in lime is less than 6%, and grain fineness is less than
200 mesh.Gypsum powder is CaSO in gypsum4·2H2O weight/mass percentage composition is more than 70%, and grain fineness is less than 200 mesh.Raw stone
Sulfuric acid calcium component take part in the hydration reaction of mineral grain in cream, and generate the water with volumizing effect and compact texture
Change calcium sulphoaluminate.This hydration reaction makes the solution alkaline around mineral grain, while the solid gel generated is by raw material
Solid particle be glued together into closely knit entirety.
Heavy metal stabilizer is the sodium of diethylene triamine pentamethylene phosphonic seven.
A kind of preparation technology of non-sintered gold tailings brick, including drying, rolling mixing, compound digestion, repeat rolling,
Shaped by fluid pressure and the maintenance of product blank.Wherein, product blank maintenance is divided into 1）Precuring：When temperature is higher than 10 DEG C, natural precuring 36-
60h；Temperature is less than 10 DEG C, damp and hot precuring 4-10h；2）Steam press maintenance：By the product blank after precuring, still kettle steaming is put into
Support, steam pressure operating temperature and pressure should accordingly adjust according to product design intensity.
Baking step is：Gold tailings powder, calcium carbonate, flyash are dried to moisture content 3%-8%.
Rolling blend step is：By gold tailings powder 50-76 parts, calcium carbonate 20-32 parts, flyash 10-32 parts, quick lime
Powder 10-18 parts, gypsum powder 1-3 parts, siliceous material 1-7 parts, F14 exciting agent 0.5-2.5 parts, heavy metal stabilizer 0.5-5 parts,
Latex powder 1-5 parts and water 9-13 parts are added to edge runner grinding mixing 2-10min and obtain compound.
Compound digestion step is：Mixed platform material is inputted to the digestion of progress material, the interior holding of digestion in successive slaking silo
Temperature is 40-70 DEG C, digestion time 2-4h, obtains digestion material.
Digestion material mixing repeats edge mill craf:By digestion material, the consolidating agent of 5-15 parts, 0.03-0.3 of 84.7-94.97 parts
Part polycarboxylate high-efficiency water reducing agent is added to Wheel mill mixer and repeats rolling mixing, and the grinding time is 2-10min, and it is standby to obtain base material
With；The mixture moisture control of each raw material is in 10%-17%.
Shaped by fluid pressure step is：By the stamping system punching press of base material input hydraulic pressure forming machine, gold tailings brick hair is made
Base；Still kettle operating temperature and pressure：Its temperature control is 174.5 DEG C, 183.2 DEG C, 194 DEG C：Pressure is controlled as
0.8Mpa, 1.0Mpa, 1.3Mpa, 2-4h is preheated under the conditions of 50-70 DEG C of kettle temperature, operating temperature, constant temperature are warming up in 2.5h
6-8h, cooling 2-3h go out kettle temperature difference and are less than 80 DEG C.
Compared with prior art, the advantage of the invention is that：
1. pair gold tailings, marble mine tailing, flyash the like waste carry out the innoxious utilization of resources, accomplish twice laid,
Turn waste into wealth；
2. by chemical activation and physically activated technology, the SiO that gold tailings and flyash are included2、CaO、A12O3Deng effectively
Composition is processed into the silicate of solidification effect, the calcium carbonate of aluminate and generation containing active component, and it is useless to give brick body mixing
The compound complementation that slag increases calcium, replenished the calcium, strengthen brick strength.It is used cooperatively using other compositions in consolidating agent and formula, can
Substitute coagulating agent of traditional cement as fragment of brick, at the same the hydrated silicate and aquation aluminate generated fill it is non-burning brick interior
Portion's hole and pore, improve pore structure, improve non-burning brick density, and rupture strength, compression strength and freeze thawing resistance are resistance to
Long property is excellent；
It is 3. using the ionic reaction and chelation of heavy metal stabilizer, the heavy metals immobilization in gold tailings is steady in heavy metal
Determine in agent lattice, control the redox potential of heavy metal, make the heavy metals such as existing Cu, Ag, As that there is insoluble scope, it is raw
The metallic compound not leached out under into stable usual environment, does not produce radgas, while eliminate mine tailing, hazardous waste
In pathogen, virus, foul gas and organic humus；
4. direct chemical action and indirect chemical effect are combined, non-sintered gold tailings brick is made, product quality is through tired family
Architecture engineering material Quality Supervision and Inspection Center examines, and meets and more than C/T422-2007《Non-sintered rubbish tailing-bricks》State
Family's standard.
Brief description of the drawings
Fig. 1 is present invention process flow chart.
Embodiment
The present invention program is described further below by drawings and examples：
Embodiment 1：
A kind of non-sintered gold tailings brick, including following component and its parts by weight：52 parts of gold tailings powder, marble mine tailing 23
Part, 14 parts of flyash, 18 parts of calcium lime powder, 1.5 parts of gypsum powder, 4 parts of silicon powder, 1.6 parts of F14 exciting agents, diethylenetriamine
10 parts of 1 part of five methylenephosphonic acids, seven sodium, 1.5 parts of latex powder and water.
A kind of preparation technology of non-sintered gold tailings brick, comprises the following steps：
1）Drying：Gold tailings powder, calcium carbonate, flyash are dried to moisture content 5%；
2）Rolling mixes：By 52 parts of gold tailings powder, 23 parts of marble mine tailing, 14 parts of flyash, 18 parts of calcium lime powder, raw stone
1.5 parts of cream powder, 4 parts of silicon powder, 1.6 parts of F14 exciting agents, 1 part of seven sodium of diethylene triamine pentamethylene phosphonic, 1.5 parts of latex powder and
10 parts of inputs of water mix grinding to XLH-800 types planet-style wheel roller mixer, and the grinding time is 6min, into compound；
3）Compound digests：Compound input successive slaking silo Inner is subjected to continous way digestion, storehouse Inner temperature is kept for 60 DEG C, disappeared
The change time is 3h, turns into digestion material；
4）Digestion material mixing repeats rolling：By the digestion material of 89.91 parts by weight, the diethylene triamine pentamethylene phosphonic of 10 parts by weight
Seven sodium, the polycarboxylate high-efficiency water reducing agent of 0.09 parts by weight are inputted to XLH-800 types planet-style wheel roller mixer and mixed, and are repeated
Rolling, grinding time are 6min, turn into base material；Material water ratio is controlled in 10-15%；
5）Shaped by fluid pressure：By the stamping system of base materials quantitative input hydraulic pressure forming machine, product blank is struck out, product sets intensity
25MPa, briquetting pressure 19MPa；
6）Product blank conserves：3 DEG C of workshop Warm degree curing time 8h, is supported using Warm rooms hydrothermal curing is protected into still kettle steam pressure
Shield.Product design strength 25MPa, steam pressure temperature are 174.5 DEG C, steam pressure 0.8MPa, and autoclaved schedule is 60 DEG C or so of kettle
3h is preheated under the conditions of temperature, is warming up to 174.5 DEG C, pressure 0.8MPa in 2.5h Inner, permanent Warm (174.5 DEG C), cooling 2.5h (goes out kettle
The temperature difference is less than 80 DEG C).The non-sintered gold tailings brick of finished product, specification:240×115×53(mm).
Embodiment 2：
A kind of non-sintered gold tailings brick, including following component and its parts by weight：57 parts of gold tailings powder, marble mine tailing 27
Part, 22.5 parts of flyash, 11 parts of calcium lime powder, 2 parts of gypsum powder, 5 parts of silicon powder, 2 parts of F14 exciting agents, diethylenetriamine five
11 parts of 1.5 parts of seven sodium of methylenephosphonic acid, 2 parts of latex powder and water.
A kind of preparation technology of non-sintered gold tailings brick, comprises the following steps：
1）Drying：Gold tailings powder, calcium carbonate, flyash are dried to moisture content 5%；
2）Rolling mixes：By 57 parts of gold tailings powder, 27 parts of marble mine tailing, 22.5 parts of flyash, 11 parts of calcium lime powder, life
2 parts of land plaster, 5 parts of silicon powder, 2 parts of F14 exciting agents, 1.5 parts of seven sodium of diethylene triamine pentamethylene phosphonic, 2 parts of latex powder and water
11 parts of inputs to XLH-800 types planet-style wheel roller mixer mixes grinding, and the grinding time is 6min, into compound；
3）Compound digests：Compound input successive slaking silo Inner is subjected to continous way digestion, storehouse Inner temperature is kept for 60 DEG C, disappeared
The change time is 3h, turns into digestion material；
4）Digestion material mixing repeats rolling：By 89.89 parts by weight digestion material, 11 parts by weight polycarboxylate high-efficiency water reducing agent,
The polycarboxylate high-efficiency water reducing agent of 0.11 parts by weight is inputted to XLH-800 types planet-style wheel roller mixer and mixed, and repeats rolling,
The grinding time is 6min, turns into base material；Material water ratio is controlled in 10-15%；
5）Shaped by fluid pressure：By the stamping system of base materials quantitative input hydraulic pressure forming machine, product blank is struck out, product sets intensity
28.2MPa, briquetting pressure 20MPa；
6）Product blank conserves：19 DEG C of workshop Warm degree uses natural curing method, 48h between the quiet stopping time is conserved, into still kettle steam pressure
Maintenance.Product design strength 28.2MPa, steam pressure temperature are 183.2 DEG C, steam pressure 1.0MPa, and autoclaved schedule is 60 DEG C or so
Kettle temperature under the conditions of preheat 3h, be warming up to 183.2 DEG C, pressure 1.0MPa, permanent Warm (183.2 DEG C) 7h in 2.5h Inner, cooling
2.5h (goes out kettle temperature difference and is less than 80 DEG C).The non-sintered gold tailings brick of finished product, specification:240×115×53(mm).
Embodiment 3：
A kind of non-sintered gold tailings brick, including following component and its parts by weight：62 parts of gold tailings powder, marble mine tailing 31
Part, 31 parts of flyash, 14 parts of calcium lime powder, 2.5 parts of gypsum powder, 6 parts of silicon powder, 2 parts of F14 exciting agents, diethylenetriamine five
12 parts of 2 parts of seven sodium of methylenephosphonic acid, 2.5 parts of latex powder and water.
A kind of preparation technology of non-sintered gold tailings brick, comprises the following steps：
1）Drying：Gold tailings powder, calcium carbonate, flyash are dried to moisture content 5%；
2）Rolling mixes：By 62 parts of gold tailings powder, 31 parts of marble mine tailing, 31 parts of flyash, 14 parts of calcium lime powder, raw stone
2.5 parts of cream powder, 6 parts of silicon powder, 2 parts of F14 exciting agents, 2 parts of seven sodium of diethylene triamine pentamethylene phosphonic, 2.5 parts of latex powder and water
12 parts of inputs to XLH-800 types planet-style wheel roller mixer mixes grinding, and the grinding time is 6min, into compound；
3）Compound digests：Compound input successive slaking silo Inner is subjected to continous way digestion, storehouse Inner temperature is kept for 60 DEG C, disappeared
The change time is 3h, turns into digestion material；
4）Digestion material mixing repeats rolling：By digestion material, the HSPC-8A water reducers of 12 parts by weight, 0.1 weight of 89.87 parts by weight
Amount part aniline -2,4- disulfonic acids, 0.08 parts by weight N- methylpyrroles, the polycarboxylate high-efficiency water reducing agent of 0.13 parts by weight input to
XLH-800 types planet-style wheel roller mixer mixes, and repeats rolling, the grinding time is 6min, turns into base material；Material water ratio control
System is in 10-15%.Aniline -2,4- disulfonic acid and N- methylpyrroles synergy, the temperature that can reduce HSPC-8A water reducers are sensitive
Property, make its being basically unchanged of physicochemical properties in -30-50 DEG C of temperature ranges, the four seasons can efficiently construct；
5）Shaped by fluid pressure：By the stamping system of base materials quantitative input hydraulic pressure forming machine, product blank is struck out, product sets intensity
31.4MPa, briquetting pressure 21MPa；
6）Product blank conserves：26 DEG C of workshop Warm degree uses natural curing method, 45h between the quiet stopping time is conserved, into still kettle steam pressure
Maintenance.Product design strength 31.4MPa, steam pressure temperature are 192 DEG C, steam pressure 1.3MPa, and autoclaved schedule is 60 DEG C or so
3h is preheated under the conditions of kettle temperature, is warming up to 192 DEG C, pressure 1.3MPa, permanent Warm (192 DEG C) 7h in 2.5h Inner, cooling 2.5h (goes out kettle
The temperature difference is less than 80 DEG C).The non-sintered gold tailings brick of finished product, specification:240×115×53(mm).
Routine operation in the operating procedure of the present invention is well known to those skilled in the art, herein without repeating.
Technical scheme is described in detail embodiment described above, it should be understood that it is described above only
For the specific embodiment of the present invention, it is not intended to limit the invention, all any modifications made in the spirit of the present invention,
Supplement or similar fashion replacement etc., should be included in the scope of the protection.
Claims (9)
1. a kind of non-sintered gold tailings brick, it is characterised in that including following component and its parts by weight：Gold tailings powder 50-76
Part, calcium carbonate 20-32 parts, flyash 10-32 parts, calcium lime powder 10-18 parts, gypsum powder 1-3 parts, siliceous material 1-7 parts,
F14 exciting agent 0.5-2.5 parts, heavy metal stabilizer 0.5-5 parts, latex powder 1-5 parts and water 9-13 parts.
A kind of 2. non-sintered gold tailings brick according to claim 1, it is characterised in that：Described gold tailings powder is Huang
The gold ore mine tailing being deposited in when Gold Concentrate under Normal Pressure is exploited after the mine tailing or spoil reclaming of mine discharge in Tailings Dam；The gold tail
SiO in miberal powder2Content be 65-80%, AL2O3Content be 5-15%, CaO content be 1-4%, MgO content be 3-8%,
K2O content is 0.5-3%, Na2O content is 1-5%, Fe2O3Content be 0.5-6%；The granularity of the gold ore mine tailing
Less than 180 mesh.
A kind of 3. non-sintered gold tailings brick according to claim 1, it is characterised in that：Described heavy metal stabilizer is
The sodium of diethylene triamine pentamethylene phosphonic seven.
4. a kind of preparation technology of non-sintered gold tailings brick, including drying, rolling mixing, compound digestion, repetition rolling, liquid
The maintenance of molded and product blank, it is characterised in that：Described product blank maintenance is divided into 1）Precuring：When temperature is higher than 10 DEG C,
Natural precuring 36-60h；Temperature is less than 10 DEG C, damp and hot precuring 4-10h；2）Steam press maintenance：By the product blank after precuring,
It is steam-cured to be put into still kettle, steam pressure operating temperature and pressure should accordingly adjust according to product design intensity.
A kind of 5. preparation technology of non-sintered gold tailings brick according to claim 4, it is characterised in that：Described drying
Step is：Gold tailings powder, calcium carbonate, flyash are dried to moisture content 3%-8%.
A kind of 6. preparation technology of non-sintered gold tailings brick according to claim 4, it is characterised in that：Described rolling
Blend step is：By gold tailings powder 50-76 parts, calcium carbonate 20-32 parts, flyash 10-32 parts, calcium lime powder 10-18 parts, life
Land plaster 1-3 parts, siliceous material 1-7 parts, F14 exciting agent 0.5-2.5 parts, heavy metal stabilizer 0.5-5 parts, latex powder 1-5 parts
Edge runner grinding mixing 2-10min, which is added to, with water 9-13 parts obtains compound.
A kind of 7. preparation technology of non-sintered gold tailings brick according to claim 4, it is characterised in that：Described mixing
Expect that digestion step is：By mixed platform material input to material digestion is carried out in successive slaking silo, keeping temperature is 40-70 ° in digestion
C, digestion time 2-4h, obtain digestion material.
A kind of 8. preparation technology of non-sintered gold tailings brick according to claim 4, it is characterised in that：Described digestion
Material mixing repeats edge mill craf:The digestion material, the consolidating agent of 5-15 parts, 0.03-0.3 parts polycarboxylate of 84.7-94.97 parts is high
Effect water reducer is added to Wheel mill mixer and repeats rolling mixing, and the grinding time is 2-10min, and it is standby to obtain base material；Each original
The mixture moisture control of material is in 10%-17%.
A kind of 9. preparation technology of non-sintered gold tailings brick according to claim 4, it is characterised in that：Described liquid
Molded step is：By the stamping system punching press of base material input hydraulic pressure forming machine, gold tailings brick blank is made；Still kettle work
Make temperature and pressure：Its temperature control is 174.5 DEG C, 183.2 DEG C, 194 DEG C：Pressure be controlled as 0.8Mpa, 1.0Mpa,
2-4h is preheated under the conditions of 1.3Mpa, 50-70 DEG C of kettle temperature, operating temperature is warming up in 2.5h, constant temperature 6-8h, cool 2-3h
Go out kettle temperature difference and be less than 80 DEG C.
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| CN109293288A (en) * | 2018-09-21 | 2019-02-01 | 山东省交通科学研究院 | A kind of polynary industrial waste environment-friendly type road building materials and preparation method thereof |
| CN109332354A (en) * | 2018-09-21 | 2019-02-15 | 宁波纯恒固废科技有限公司 | A kind of method for innocent treatment of cyanogen-containing tailing |
| CN109534704A (en) * | 2018-12-07 | 2019-03-29 | 临沂宏艺科技发展有限公司 | A kind of Making Use of Tailings preparing cement using golden tailing utilizes method |
| CN113003991A (en) * | 2021-04-16 | 2021-06-22 | 山东高速集团有限公司 | Gold tailing roadbed filling material and preparation method and application thereof |
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| CN114956799A (en) * | 2022-08-02 | 2022-08-30 | 佛山市道易生科技有限公司 | Dry-method powder-making ceramic tile/board and preparation method thereof |
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Application publication date: 20171219 |