CN109987912A - Zeolite prepares iron tailings dry powder and mortar - Google Patents

Zeolite prepares iron tailings dry powder and mortar Download PDF

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Publication number
CN109987912A
CN109987912A CN201910177728.4A CN201910177728A CN109987912A CN 109987912 A CN109987912 A CN 109987912A CN 201910177728 A CN201910177728 A CN 201910177728A CN 109987912 A CN109987912 A CN 109987912A
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mortar
dry powder
iron tailings
zeolite
cement
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胡春宇
杨志军
赵克凡
胡宏宇
胡世安
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胡春宇
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14Compositions 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
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

A kind of series of products preparing iron tailings polymer mortar using zeolite: including general polymer mortar, special copolymer mortar and other polymers mortar;The present invention is added zeolite powder and uses ordinary cement, iron tailings for raw material, using conventional dry powder and mortar technique, the high-performance dry-powder mortar of active blend preparation cheap and easy to get, production cost is low, and directly plus water is mixed, easy for construction, easy to operate, construction efficiency is high;It protects and plasters for construction wall, build, it is levelling;Waterproof performance is good, good heat insulating, crack resistance are good, plastering flawless, falls off without hollowing;Traditional siliceous, traditional material can be substituted with iron tailings, save cement 10%, production dry powder and mortar quality is preferable, can be with the common and extraordinary grade dry powder and mortar of steady production, and ton cost reduces by 40%;Meet very much the actual conditions in China, the popularization of technique will promote the universal and development of China's high-strength special dry powder and mortar technology.

Description

Zeolite prepares iron tailings dry powder and mortar
Technical field
The present invention relates to a kind of the field of building materials, specifically prepare iron tailings dry powder and mortar using zeolite: including common Cement mortar, polymer cement mortar, features mortar and rapid-patching motar etc..
Background technique
Mineral Resources in China exploitation total scale occupy world forefront.The Area distribution of national iron tailings can be divided into following three Major class: the first kind is the main area headed by Hebei, Liaoning;Second class is Inner Mongol, Sichuan, Beijing and four, Shanxi ground Area;Third class is remaining area.The outstanding feature of China's iron ore deposit is that grade is low, Paragenesis mine is more, is caused in ore dressing A large amount of iron tailings can be generated in the process, and 2.5~3.0 tons of tailings will be discharged in 2 tons of iron ore concentrates of every production, but due to ore dilution Reason, the ratio of concentration of some barghs have reached 5~6, or even to 10 or more.According to Chinese Mining Industry federation statistics table It is bright, it has just been more than whole tailings discharging total amounts to China's iron tailings total emission volumn in 2007.
Currently, the comprehensive utilization ratio of tailing is 14%, the utilization rate of iron tailings is only 7% or so, compared with developed countries, Its iron tailings comprehensive utilization ratio has had reached 60%, and there is also very big gaps.There are three sides for the development and utilization of iron tailings resource To, first is that recycling valuable component, second is that production construction material, third is that land reclamation.The development and utilization feelings of iron tailings resource at present Condition allows of no optimist.Other than recycling valuable metal element (mostly recycling iron) or directly as sandstone substitute, very much There is no carry out whole development truly to iron tailings resource to utilize for bargh.
Comprehensive utilization of tailing technique is promoted in foreign countries, and achieves good effect.Currently, China's tailings of high silicon iron Construction material, which utilizes, is concentrated mainly on high-mark cement, architectural pottery, non-burning brick and fired brick, high-grade ornament materials, crystallite glass Glass, granite etc..
(1) high-mark cement
The primary raw material for producing high-mark cement is iron tailings, lime stone, sulfate slag and flyash, and iron tailings dosage can reach 15% or so, wherein irony calibration raw material --- sulfate slag can be adjusted according to the content of iron oxide in iron tailings, work as iron oxide Base is not to can have to when content reaches requirement.Raw material are made by processes such as broken and levigate processing, ingredient, stirring, firings, Its performance complies fully with requirement.Adequate measures are taken, the completely available iron tailings of new type nonaqueous cement production line substitutes traditional The clinker quality of siliceous, ferrous material, production is preferable, can be and per ton with the common 52.5R high grade cement of steady production Clinker cost reduces nearly 5 yuan.But because iron tailings powder water content is big when using, forced feed should be taken to guarantee that blanking is smooth;Iron tail Mine ingredient might have slight skinning, and kiln tail precalcining system need to reinforce clogging-preventing measures, sets air bubble more, stablize calcinating system; Winter production tailing barren rock better effect.Tailing is looked in the successful application of new dry process clinker production line for its a large amount of utilizes New approach has been arrived, has solved environmental pollution, has improved ecological environment, there is huge economic, society and environmental benefit.
(2) non-burning brick
Tailing baking-free brick is using tailing as main raw material(s), and dosage reaches as high as 70%, adds cement, aggregate, additive, green body It is shaped to vibration moulding, curing temperature is 20 DEG C, is conserved 10,28 days.Wherein aggregate matches coarse grain in reasonable Shi Keyong iron tailings Sand replaces, and according to the effect of tailing in the material, can be classified as 3 kinds and utilize form: 1) aggregate use be served only as, in product knot Mainly play support frame in structure, aquation synthetic reaction occurs only in the range of about 3 μm of its particle surface;2) it is used as glue Ramming material (commonly referred to as levigate tailing) synthesizes new gel or crystalline mineral intergrowth, by bone mainly by chemical reaction Material is cemented to an entirety;3) CHARACTERISTICS OF TAILINGS SAND of nature grade is used, is directly realized with alkali-activator mixing by interfacial reaction In conjunction with.The technological process of production is as follows:
Raw material selection conserves → finished product with processing → ingredient → stirring → digestion → molding is → quiet to stop →;
Non-autoclaved and unburned brick belongs to felted tailing building materials, refers in room temperature or under conditions of not higher than 100 DEG C, passes through cementing material Tailings particles are combined integral.It is not use steam pressure with steam-pressing brisk difference, but room temperature is used to conserve.Its advantage is that reducing Equipment investment reduces production cost, has more realistic meaning to the popularization and application for accelerating this kind of building materials.
(3) concrete small size hollow building block
The primary raw material for producing concrete segment is iron tailings, flyash, coarse aggregate and cement etc., raw material through batching, stir It the processes such as mixes, form and conserves to be made.In concrete segment, flyash be both admixture and it is fine gather materials, iron tailings use It measures up to 45%.Building block is in addition to the building enclosure of the load-carrying members and industry and civil buildings that are widely used in residential architecture, also It can be used for decorating, urban construction and hydraulic engineering, city trees and shrubs building etc..Building block is high-quality as other products It is badly promoted and applied with it closely related.Current building block quality there are the problem of be mainly manifested in that presentation quality is poor, geometric dimension is inclined Difference is big, block strength is unstable, seepage resistance demand is not achieved in compactness.Block must be improved as early as possible to accelerate the development of building industry Block product quality furthers investigate block insulation heat-proof quality, is allowed to that the requirement of energy saving building can be reached and wall is thinned Thickness.
(4) devitrified glass
Devitrified glass is also glass ceramics, be one kind the behavior of parent glass controlling crystallizing and made of microcrystal and glass phase it is equal The material of even distribution.Devitrified glass is that it has crystalline texture with the difference of simple glass, and then with the difference of ceramic material It is that its crystalline texture will carefully much.Production tailing microcrystal glass primary raw material has iron tailings, quartz sand, CaCO3、A12O3、 MgO、Na2CO3、K2CO3、BaCO3, borax etc., wherein tailing dosage is up to 60%, when Specimen preparation forms such as using water quenching sintering Lower process
Ingredient → mixing → fusing → water extraction → drying → die-filling → sintering crystallization → cold working → finished product;
Heat treatment process are as follows: 770 DEG C of nucleation temperature, soaking time 60 minutes;870 DEG C of crystallization temperature, soaking time 60 minutes rise Warm 5 DEG C/min of rate.Different face can be produced by adding different colorants for Tangshan Area iron tailings devitrified glass The tailing microcrystal glass of color, and the top-grade building decoration or industrial wear-resistant, corrosion-resistant material of high-performance, low cost can be developed Material, has reached being recycled for resource, has been conducive to environmental protection, and improved the technology content and economic value of material.
(5) iron tailings dry-mixed mortar
A kind of iron tailings heat insulation dry-mixing is disclosed in " a kind of iron tailings heat insulation dry-mixing decorative mortar and preparation method thereof and process " Decorative mortar and preparation method thereof, constituent and weight ratio are as follows: 45~55 parts of iron tailings sand;Cementitious material 25~ 35 parts;2~4 parts of redispersible polymer emulsion powder;7~15 parts of iron tailings powder;5~10 parts of hydrated lime in powder;Cellulose ether 0.2 ~0.4 part;0.3~0.5 part of starch ether;0.01~0.03 part of air entraining agent;0.3~0.5 part of wood fibre;Polypropylene anti-crack fiber 0.03~0.05 part.The iron tailings heat insulation dry-mixing decorative mortar is made in each component ratio weighing, mixing by weight, It can be used after dry-mixed decorative mortar obtained and water are mixed by 9:2 weight ratio again.Iron tailings heat preservation of the present invention Dry-mixed decorative mortar production cost is low, and directly plus water is mixed, and easy for construction, easy to operate, construction efficiency is high;For building Wall protection plastering, good heat insulating, crack resistance be good, plastering flawless, falls off without hollowing.
Developmental research for tailing building materials, foreign countries' starting are more early.Early in the beginning of the sixties, the former Soviet Union has begun to tailing and has built The research and production of material, in addition to being used as the coarse-fine aggregate of concrete after be suitably classified by tailing such as abroad Krivorog Iron Mine, Also silicate building products are produced with fine-graded tailing;Kursk then built up using tailing as the cement plant of primary raw material and Glass factory;Section's husband's Dorr and Ka Qika nail (unit of length) pick up company also with the milltailings containing a large amount of magnesium silicates, develop magnesium cement And cement products.Canada is outside characteristic divided by the research of tailing materials for wall, and Quebec mine is also burnt out with levigate tailing Fire resisting silica brick.In addition to recycling fluorite, feldspar, quartz etc. from barren rock, current overwhelming majority tailings are used as concrete and fill out in the U.S. Material and paveio(u)r, also the adjustable light-weight brick of density is made with taconite rock tailing in someone.Japanese someone is by iron tailings and 10% Diatomite mixing, be fired into aglite.Quartzite tailing is then classified by Ukraine, and the conduct of > 0.14mm is for building Sand, < 0.04mm's is used to produce pore glass and foam glass, and 0.14~0.04mm's is used as Concrete Filled material and production bubble Foam concrete material.All processing is optimized in secondary resource by external many metal mines, and remaining tailing is used to make Make tailing-bricks and construction material etc..
Mine research institute, Ma'an Mountain using neat dashan concentrator tailing be added certain ingredient (rubble, sand, flyash and Clay) and lime, road surface base-material is used as after certain processing, and carried out industrial examination in Shenyang to the winding section 12km It tests, the measurement through highway division shows.Class II highway has been had reached to the intensity requirement of roadbed.The institute also utilizes neat mountain, askew Head mountain fine tailings develop non-burning brick, tapestry brick, and performance has reached 100# standard.
Dry powder and mortar, including conventional cement mortar, polymer cement mortar, features mortar and rapid-patching motar Deng.Wherein conventional cement mortar is by cementitious material, aggregate (dry sand), mineral admixture (predominantly flyash), additive etc. Material composition;Polymer cement mortar is made of special cement, quartz sand, acrylic acid butylbenzene copolymer and additive: extraordinary Function mortar by special cement, sand, additive and by functional requirement configure material form;Rapid-patching motar is by general Water flowing mud is moulded and coagulates the materials such as agent, early strength agent, binder, sand composition.They are respectively by different requirements, different stage, different use On the way, become product through ingredient, metering, stirring, mixing, in bulk or packaging.Dry powder and mortar in bulk can transport to concrete mixing plant, press It is required that adding water and stirring as commodity mortar (or premixing mortar).Bagged dry powder mortar can transport to construction site, when operation only To add water that can become dedicated mortar material by a certain percentage.These dry powder and mortars have stronger technical advantage.
Application various types of the iron tailings in building material have more if expanding its application in building materials industry Extensive purposes, but also require study exploitation there are many new purposes.By the resource utilization of iron tailings, former material can be saved Material consumption, it is energy saving, preserve the ecological environment, solve contradiction between development of resources and environmental protection, reach environment and economy The sustainable development of bargh is really realized in the two-win of benefit.
Summary of the invention
Technical problems to be solved.
And the shortcoming in current iron tailings dry powder and mortar product, propose that a kind of utilization zeolite prepares iron tailings dry powder New departure of mortar;According to country to the code requirement of construction material, requirement of the building product to material chemical component is produced are as follows: SiO2> 65%, Al2O3> 15%, Fe2O3< 15%, MgO < 5%, Na2O < 2%, K2O < 2.5%, SO2< 4%.China is big In addition to Al in the iron tailings of some areas2O3The relatively low other ingredients of outer meet the requirements.Its ingredient is adjusted by being properly added zeolite, It is fully available for construction material, and improves building materials quality.The chemical component of zeolite is generally regarded as by Al2O3、 SiO2、H2O and four part of metal cation are constituted, wherein Al2O3、SiO2Two kinds of ingredients account for about the 80% of zeolite group mineral total amount.Zeolite In powder containing a certain number of active silicas and aluminium oxide (A1O) after it is impregnated in mortar, these active components Aquation, the condensation process that can participate in cementitious material, give full play to its pozzolanic activity, with the Ca (OH) being precipitated when hydrated cementitious2 Reaction generates C-S-H, C-AI-H gel, promotes the progress of hydrated reaction of cement, increases the quantity of hydrated product, improves thick The transition zone and pore structure to gather materials between Behavior of Hardened Cement Paste declines harmful hole number, reduces the scale of slit, efficiently reduce hole Quantity, to improve the compactness of mortar, simultaneously because zeolite powder has special screen work shape internal structure, inside is full of The different cavity of pore size and duct have stronger hydrophily, can increase the consistency of mixture, reduce bleeding, subtract The microcrack of Behavior of Hardened Cement Paste after few hardening, and can improve and gather materials with the bonding interface of cementitious material due also to various zeolites are ground The rock-forming mineral of shell, they have high stability, therefore, zeolites gum material are mixed in Behavior of Hardened Cement Paste, will greatly Improve intensity, durability, ion exchangeable and the acid resistance of mortar.
To solve the above problems, the present invention takes the technical solution to be.
A kind of preparation of zeolite iron tailings general polymer dry powder and mortar.
(1) (measuring with weight ratio) is formulated: material component A, iron tailings sand 50~70%, zeolite powder 5~10%, flyash 5~ 10%, cement 10~30%, gypsum 1~4%, fine disperse organic polymer powder 1~4%, cellulose ether 0.2~0.4%, starch ether 0.3 ~0.5%, aliphatic sulfonic acid sodium salt 0.01~0.03%, polypropylene anti-crack fiber 0.03~0.05%.Defoaming agent 0.2~0.4%, LBCB-1 thixotropic lubricant 0.3-0.5%.
The iron tailings sand is that the thin tailings of 10~60 purposes is a kind of.
The zeolite powder is one kind of 300~400 mesh.
The flyash is that it is a kind of.
The cement is ordinary portland cement, white cement or high alumina cement at least one therein.
The gypsum is the natural gypsum, anhydrous gypsum or semi-hydrated gypsum at least one therein.
The fine disperse organic polymer is styrene-butadiene copolymer, Styrene-acrylic copolymer, acetic acid second Enester homopolymer, polyacrylate homopolymers, acetic acid styrol copolymer or vinyl acetate-ethylene copolymer are therein at least It is a kind of.
The cellulose ether is Na- carboxymethyl cellulose, ethyl cellulose, methylcellulose, hydroxylated cellulose ether, hydroxyl Propyl methocel or starch ester at least one therein.
The starch ether is that it is a kind of.
The aliphatic sulfonic acid sodium salt is that it is a kind of.
The polypropylene anti-crack fiber is that it is a kind of.
The defoaming agent 803 is that it is a kind of.
The LBCB-1 thixotropic lubricant is that it is a kind of.
A kind of preparation step of zeolite iron tailings general polymer dry powder and mortar.
(1) material component A, iron tailings sand 50~70%, zeolite powder 5~10%, flyash 5~10%, cement 10~30%, stone Cream 1~4%, fine disperse organic polymer powder 1~4%, cellulose ether 0.2~0.4%, starch ether 0.3~0.5%, aliphatic sulfonic acid sodium Salt 0.01~0.03%, polypropylene anti-crack fiber 0.03~0.05%.Defoaming agent 0.2~0.4%, LBCB-1 thixotropic lubricant 0.3- 0.5%。
(2) the raw material in feed bin is imported measuring chute, passes through the number of sensor by metering system under the cooperation of metering screw According to feedback, raw material metering is realized.
(3) the material after measuring is led into main bucket elevator by screw conveyor, is promoted to mixing machine top and wait for blending bunker In.
(4) storehouse to be mixed is pneumatic big enabling type, material to be mixed can be put into Agravicmixer rapidly, realize dry powder sand Starch continuous production.
(5) the finished product mixed inside mixing machine is put into rapidly finished product bin and is buffered, stored up by pneumatic quick operating valve It deposits.
(6) by being flexible coupling into packing machine metering, being packaged between finished product bin and packing machine.
(7) storage storage is examined.
A kind of zeolite iron tailings polymer dry powder mortar preparation synergistic effect, the mechanism of action are as follows.
The basic principle of Analysis on Mechanism modern times high-strength concrete is that the ratio of mud is being greatly lowered, is reducing Behavior of Hardened Cement Paste hole In the case where rate, using the activity of high-quality mineral admixture, the free lime released is reacted with silicate cement hydration and generates two Secondary response generates hydrated calcium silicate gel, increases the amount of gum material in Behavior of Hardened Cement Paste, matter improvement, and further filling concrete The hole of stone, so that the intensity and other performance of Behavior of Hardened Cement Paste increase substantially.This is the research currently based on portland cement With the basic fundamental approach for developing high-strength and super high strength concrete.But the major issue of modern Portland cement concrete (PCC) is durable Property it is insufficient, the reason is that determined by the CaO content high (63~67) of portland cement, in addition to C-S-H, remaining water Changing product is all a little unstable active materials in chemistry and physically, all can energetically react with environment, make coagulation Soil is in use after various physicochemical changes, so that making the durability of concrete reduces.
Zeolite powder is that volcano grey matter aluminosilicate mineral admixture, zeolite made of a kind of natural zeolite is levigate accumulate in China Reserve is very big, and distribution is wide, and also root is convenient for exploitation processing, thus its pulverized powder is a kind of cost-effective concrete admixture. In zeolite powder containing a certain number of active silicas and aluminium oxide (AlO) after it is impregnated in concrete, these work Property component can participate in the aquation of cementitious material, condensation process, its pozzolanic activity be given full play to, with the Ca being precipitated when hydrated cementitious (OH)2Reaction generates C-S-H, C-Al-H gel, promotes the progress of hydrated reaction of cement, increases the quantity of hydrated product, Improve the transition zone and pore structure between coarse aggregate and Behavior of Hardened Cement Paste, declines harmful hole number, reduce the scale of slit, effectively The quantity in hole is reduced, so that the compactness of concrete is improved, simultaneously because zeolite powder has special screen work shape internal structure, The inside cavity and duct different full of pore size, have stronger hydrophily, can increase the consistency of mixture, reduction is secreted It is aqueous, the microcrack of Behavior of Hardened Cement Paste after hardening is reduced, and can improve and gather materials with the bonding interface of cementitious material due also to various zeolites It is the rock-forming mineral of the earth's crust, they have high stability, therefore, zeolites gum material are mixed in Behavior of Hardened Cement Paste, will Greatly improve the intensity and durability of concrete.After levigate, the degree of roughness of particle surface obviously increases flyash, has The reaction activation point of apparent machinery polishing scratch, surface increases, and activity improves.The silicon of fine-ground fly-ash particle surface, training, calcium distribution Uniform soluble silica increases, and is conducive to the raising of chemical reaction ability and the combination of granular boundary.In grinding processes, powder The surface texture of coal ash tends to amorphization, and important variation has occurred in granule-morphology and structure, makes fly vitreous particle The respond on surface enhances, and in hydrated cementitious early stage, its pozzolanic activity is obviously increased, interface C a (OH)2Crystal size compared with It is small, and tend to weaken.Levigate flyash, the more than optimization of particulates' properties, and more importantly flyash quality obtains Whole, the optimization of comprehensive order obtains two functional parameters of water demand ratio and compressive strength rate of flyash obviously Improvement, when effectively increasing the levigate fine coal of later strength of the slump and concrete of mixture and obtaining double-doped with zeolite powder, two The effect of person is complementary to one another, and can fully play the pozzolanic activity of Can Tai section, and shape effect and emblem gather materials effect.Make coagulation Soil reaches high performance purpose.
(1) property of iron tailings
Tangshan Area major part iron ore belongs to presinian period Anshan type Metamorphosed Sedimentary Iron Deposits, and top is lean hematite, and lower part is poor Magnetic iron ore.Gangue mineral has quartz, chlorite, tremolite etc..SiO2 is up to 65%~75% in iron ore mine chemical component, TFe8%~14% belongs to high-silicon high swage tailing, is generally free of valuable accompanying element.Main component be quartz, a small amount of hornblend, Chlorite, biotite, calcite and dolomite etc..They are general all thinner by broken and classification processing particle, and gradation is good Good, some also have certain chemical activity due to by a degree of calcining or chemical treatment.According to relevant information, production Requirement of the building product to material chemical component are as follows: SiO2 > 65%, Al2O3 > 15%, Fe2O3 < 15%, MgO < 5%, Na2O < 2%, K2O < 2.5%, SO2 < 4%.The large and medium-sized chemical component for selecting factory's iron tailings in Tangshan Area is shown in Table 1
Ingredient SiO2 CaO Fe2O3 Al2O3 MnO MgO TFe S P MFe
Content 65~72.79 4.85~5.11 5.90~6.50 6.08~7.50 0.080~0.085 3.16~3.50 4.40~4.75 0.10~0.17 0.15~0.20 < 0.93
Table l
By table l as it can be seen that in addition to Al in the iron tailings of Tangshan Area2O3The relatively low other ingredients of outer meet the requirements.By appropriate adjustment Its ingredient, is fully available for construction material.
(2) feasibility that iron tailings utilizes
Research both domestic and external and application attestation, there is some mineral gels in tailing, they have certain electrical property, absorbability With huge surface energy, under alkaline excitation, this colloidal substance can generate ion exchange with the hydrated product of cement slurry, be formed New condensate.These condensates are all by reticular structure made of stronger chemical bonds.Simultaneously as building system Product are to form under pressure, and the tightness of contact surface all increases between cement granules and mineral, in addition hydration reaction, makes Can forcefully be gelled quartz particles and other materials.Studies have shown that cement can be relatively tight with quartz particles in hydration process It thickly combines, is only second to lime stone and dolomite.
The main chemical compositions of silicalite sections tailing are SiO simultaneously2, with opal, flint existing for amorphous forms Rock, diatomite, siliceous shale etc., the solubility about 1.6 × 10 in neutral water- 6, but in alkaline aqueous environment, it can be spontaneously Chemical combination occurs with alkaline metal ions, generates the insoluble mineral such as zeolite or hydrated calcium silicate.And existing stone in crystalline form English, must be in high pressure thermal and hydric environment, and side has this property.When such tailing is by high temperature, main physical chemistry Shape shows as the polymorphism transformation of quartz.Under high pressure, quartzy various high temperature variants, though it is neutral in tailing construction material structure Energy difference is not obvious, but bulk effect when its phase transformation, but plays restrictive function to production process.For purer quartz Sand or Quartzite Type tailing.It due to its higher fusing point, can be used as acid refractory, quartzy glass resistant to high temperature can also be melting into Glass.
Hydration reaction occurs in the environment of aqueous (including steam) for anhydrous or poor-water tailing mineral, and generation makes The process of stable, with certain mechanical strength the enhydrite combination of chemical property is known as aquation synthesis under the conditions of.Thus Obtained building material product is known as aquation synthesis tailing building materials.
Natural zeolite is the general name of zeolite race mineral, it has been found that zeolite race mineral share 40 kinds.It is wherein relatively common Have clinoptilolite, modenite, chabasie, phillipsite, erionite, analcime, laumontite etc..Guangxi has had now been found that Two mineral of modenite and foresite.Zeolite is that have certainly in the general name of the crystal of the porous hydrous alumino silicates of rack-like structure The naturally occurring mineral in right boundary, also there is artificial synthesized crystal.All zeolites can all be indicated with a general chemical formula:
(Na, K)x(Mg, Ca, Sr, Ba)y[Alx+2ySin-(x +2y)O2n]. mH2O
X: alkali metal ion number;
Y: alkaline-earth metal ions number;
N: the sum of aluminium silicon ion number;
M: the number of hydrone:
In terms of electrovalent coordination situation: the sum of monovalence, electricity price number of bivalent cation are equal to aluminum ions number.Zeolite water is not involved in Electricity price balance. SiO2And Al2O3Two kinds of compositions account for the 80% of zeolite group mineral total amount.But different alumina silica ratio values constitutes different Zeolite group mineral type.H2O is also one of main ingredient of zeolite, and content is 10% or so, but water is not involved in the skeleton structure of zeolite At adsorbing only in the micropore of zeolite crystal.It is between various zeolites main difference is that skeleton structure between them is different; So-called " skeleton ", refer to by oxygen, silicon, three kinds of atomic buildings of aluminium three-D space structure, do not include alkali, alkaline-earth metal and water;Boiling Basic unit in stone skeleton construction is silicon (aluminium) oxygen tetrahedron made of being piled up as four oxygen atoms and silicon (aluminium) atom: Component units ring, double base ring, cage (crystallization polyhedron) constitute the frame of three-dimensional space step by step again for oxygen-octahedron and aluminum-oxygen tetrahedron Columnar structure zeolite crystal.Various rings as secondary unit join together to be formed the cavity and duct (or hole of various zeolites Cave and channel).Various zeolites have oneself specific shapes and sizes cavity and duct can adsorb and retain different shape and The molecule of size.Therefore, zeolite, which is called, makees molecular sieve.In zeolite crystal, silicon is tetravalence, and aluminium is trivalent, so alumina four sides The charge unbalance of body, institute short of electricity lotus are compensated by alkali or alkaline earth metal.
Natural zeolite has unique internal structure and Crystallochemical Properties, makes it have water suction, absorption, selectivity suction The performances such as attached, ion exchange, catalysis reaction, acidproof and radiation hardness;
(1) water absorption character: water is the very strong molecule of polarity, and zeolite has very big affinity to water, is had compared with other desiccant The high outstanding feature of its water absorption rate can use in wider range.Its water absorption is 5-6 times of silica gel or aluminium oxide.And Still there is high water absorption under high temperature, be such as 13% in 100 DEG C of water absorptions, 200 DEG C of whens still have 4%.Zeolite in high-speed flow still There is higher water absorption, when being usually 30m/min such as gas linear velocity, the insulation water absorption of zeolite is 16.7%;
(2) adsorptivity and Selective adsorption: a large amount of holes of zeolite crystal and channel make zeolite have very big specific surface area, Every gram of zeolite is up to 400~1000m, and wherein modenite is generally 440m.It is entire volume of that void volume can account for zeolite 50%, and special molecular structure and the biggish electrostatic attraction that is formed makes zeolite have sizable stress field.When driving away After the water of zeolite interior, zeolite interior cavity just has stress field, and has suction-operated to the substance of surrounding;
(3) ion exchangeable and selection exchangeability: potassium, sodium, calcium in zeolite etc. cation with crystallize screen work in conjunction with not bery Closely, have and carry out the reversible property exchanged with other cations in aqueous solution.The water-soluble liquid phase of zeolite and certain metal salts When contact, the metal cation in solution can enter in zeolite, and the cation in zeolite can then be got off by exchange into solution.
The physical property of addition flyash flyash includes density, bulk density, fineness, specific surface area, water requirement etc., this A little properties are the macroscopic view reflections of chemical component and mineral composition.Since the composition fluctuation range of flyash is very big, this is just determined The difference of its physical property is also very big.Adding coal ash has saved a large amount of cement and fine aggregate in concrete;Reduce use Water;Improve the workability of concrete batching system;Enhance the pumpability of concrete;Reduce creeping for concrete;Reduce water Change heat, thermal energy dilatancy;Improve concrete impervious ability;Increase the modified of concrete.In the physical property of flyash, fineness It is important project with granularity.It directly affects other properties of flyash, and flyash is thinner, and the specific gravity that fine powder accounts for is got over Greatly, activity is also bigger.The fineness of flyash influences early hydration reaction, and chemical component influences the reaction in later period.
Chemical property: flyash is a kind of artificial pozzolana mixed material, and itself is slightly with or without hydraulic gelling Can, but in the presence of with powdery and water, it can be in room temperature, especially under the conditions of hydro-thermal process (steam curing), with calcium hydroxide Or other alkaline earth metal hydroxides chemically react, and generate the compound with hydraulic gelling property, become a kind of increase The material of intensity and durability.
Flyash makees the admixture of mortar or concrete, and adding coal ash replaces part of cement or thin bone in concrete Material, can not only reduce cost, and can improve the workability of concrete, improve waterproof, gas, Sulphate-resistant property and resistance toization Erosion performance, the high temperature resistance for reducing the heat of hydration, improving concrete are learned, mitigates particle separation and bleed phenomenon, reduce coagulation The corrosion of the contraction of soil and cracking and inhibition stray electrical current to reinforcement in concrete.
Cement is added: aluminous cement can be used as a component of compound binding agent in dry powder and mortar, answer in different It closes in binder and plays different effects.It all has an impact to the workability of mortar, hardening property, intensity, shrinking percentage etc..Commonly Portland cement, aluminous cement system, a series of this compound binding agent are mainly used for needing in the dry powder and mortar of quick-hardening, firmly Change and the adjusting of setting time is mainly the content of aluminous cement and the kind of ordinary portland cement in compound binding agent.It Mainly as the adhesive mortar, repairing mortar, waterproof mortar etc. of decorative board.Repairing mortar is used for existing masonry and concrete Building, whether structural cracks and various breakages caused by constructional deficiency or weathering, utilize existing multiple technologies and phase The material answered can restore original building surface, and the integral strength of building can be improved.Waterproof mortar can not only prevent liquid Body leakage, there are also certain resistance to vapour permeabilities and the good adhesive force for preventing delamination.So this dry powder and mortar can For various reservoirs, building roofing and wall face etc..II aluminous cement, 2 gypsum system is in this kind of compound binding agent system It is most of to use 1# aluminous cement in system, and considerable gypsum is added.The compound binding agent system water metaplasia at it is main Product is entringite, and the structure with automatic equalization, and energy rapid draing, gain in strength speed is fast, and contraction can be offset, this Class dry powder and mortar can be used as the adhesive mortar of the decorative board of accurate geometric dimension.
It is to adjust setting time that gypsum, which is added,.Gypsum: main component is calcium sulfate.The natural gypsum is CaSO4・ 2H2O is to be dehydrated to generate α or β semi-hydrated gypsum (CaSO by control4・1/2H2O) and without water anhydrite.It is general in dry powder and mortar With α, β semi-hydrated gypsum or the natural gypsum.The effect of gypsum and its solubility in water are important in dry powder and mortar.And gypsum It is solubility in water and its production method, levigate method and fine grinding degree, the resting period, related using temperature and pH value, The size of solubility generates the influence of essence to the caking property of dry powder and mortar.
Add the effect of fine disperse organic polymer powder:
Nineteen fifty-three German WCAKER, CHEMIE invented redispersible powder, this to produce polymer modification dry powder and mortar It is possibly realized, now known as one-component system.Redispersible powder is the special water-based emulsion by spray drying, is mainly based upon Vinyl acetate resin-ethylene copolymer and the polymer bonding agent produced.The organic adhesion agent of this powdery being mixed with water or After dispersion, it can be restored to their original aqueous emulsion state, and keep typical characteristics possessed by machine adhesive and function, So referred to as redispersible powder.After moist part evaporation, polymer particle forms one layer of polymeric film by coalescence, Play the role of adhesive.According to the difference of proportion, the modification of dry powder and mortar, Ke Yiti are carried out using redispersible polymer powder The high glue-joint strength with various substrates, and improve the flexible and deformability of mortar, do curved intensity, wear resistance, toughness, bonding Power and density and water holding capacity and application property.
The fine disperse organic polymer used in dry powder and mortar be it is water-soluble, it forms latex solution in water, to all kinds of Substance has good caking property, but its bonding mechanism and mineral hyrate (cement) bonding mechanism have fundamental difference.Dry When powder mortar adds water and stirs, polymer beads self-dispersing can't be with cement adhesive aggregation, on the one hand due to finely divided organic polymer Lubricating effect between composition granule enables the component of mortar individually to flow;Another aspect fine disperse organic polymer has air Inductive effect, therefore the construction workability of mortar can be improved by assigning mortar compressibility.It was verified that addition is finely divided to be had The mortar of machine polymer has the advantage that the strength development of 1) mortar is fine, good with base bonding property, and especially early stage bonds Intensity is high;2) there is good crack resistance and frost resistance;3) favorable working performance is easy and fast to plaster.
Relatively more to the amount requirement of fine disperse organic polymer in the adhesive mortar of decorative board, its addition makes Bending strength, crack resistance, adhesive strength, elasticity, the toughness of mortar have improvement, Mortar shrinkage may finally be avoided to crack, also The thickness of adhesive layer can be reduced.The above-mentioned performance that fine disperse organic polymer can improve mortar is because it can be in mortar Grain surface forms polymer film, and part of the surface has stomata on film, and pore surfaces are filled by mortar, and concentrating stress reduces, and Relaxation can be generated under the effect of external force without destroying.In addition, mortar forms rigid backbone after hydrated cementitious, and in skeleton Polymer have the function of active joint, similar to the tissue of human body, polymer formed film can liken joint, ligament, It thereby may be ensured that the elasticity and toughness of rigid backbone.Polymer film tensile strength is 10 times bigger than the tensile strength of ordinary mortar More than, so, fine disperse organic polymer can also improve the tensile strength of mortar.
It adds cellulose ether and is used as thickener and water-retaining agent.Although adding proportion is very low (0.02%-0.7%), effect It is extremely important.Cellulose ether used in dry powder and mortar is mainly that methyl hydroxyethylcellulose ether (MHEC) and methylhydroxypropyl are fine Tie up plain ether, abbreviation MC.MC characteristic: adherence and application property this be two interrelated factors;Water-retaining property avoids the fast of moisture Speed evaporation, so that the thickness of screed can significantly reduce.It can assign dry powder and mortar suitable consistency and workability using stabilizer, It can be avoided mortar and generates precipitating and moisture evaporation upon hardening, can also improve the performance of the final hardened paste of mortar.Stablize Agent can be inorganic mineral (such as phyllosilicate), be also possible to organic synthesis object (such as various cellulose ethers).Lignin sulfonic acid Salt is common a kind of plasticizer in dry powder and mortar, is the waste material in paper mill, and general volume is 0.12%~0.13%, can be with Improve the adhesion strength of mortar.Polyvinyl alcohol is used as anticoagulant in dry powder and mortar, while being also a kind of binder, can also mention The adhesion strength of high mortar.The accelerator that lithium carbonate is solidified and hardened as dry powder and mortar.Acetic acid as gypsum component retarding solvent, The hardening setting rate of gypsum in adjustable dry powder and mortar.Potassium tartrate, poly- alkylamide, certain phosphate can also be used The retarder hardened with borate as gypsum.
It can assign dry powder and mortar suitable consistency and workability using stabilizer, it can be avoided mortar and generates upon hardening Precipitating and moisture evaporation, can also improve the performance of the final hardened paste of mortar.Stabilizer can be inorganic mineral (such as laminar silicic acid Salt), it is also possible to organic synthesis object (such as various cellulose ethers).Lignosulfonates are common a kind of plasticising in dry powder and mortar Agent is the waste material in paper mill, and general volume is 0.12%~0.13%, can also improve the adhesion strength of mortar.Polyvinyl alcohol It is used as anticoagulant in dry powder and mortar, while being also a kind of binder, can also be improved the adhesion strength of mortar.Lithium carbonate conduct The accelerator of dry powder and mortar solidification and hardening.Acetic acid is as gypsum component retarding solvent, and gypsum is hard in adjustable dry powder and mortar Change setting rate.The slow setting that can also be hardened using potassium tartrate, poly- alkylamide, certain phosphate and borate as gypsum Agent.
Addition starch ether: it can increase consistency of mortar.
Addition air entraining agent: microbubble is introduced in mortar by physical action, reduces slurry density, application property is more preferable.It is main If aliphatic sulfonic acid sodium salt and sodium sulfate salt additional proportion are 0.01%-0.06%.
Addition protection coagulant: expected setting time is obtained with it.Common calcium formate, additional proportion 0.5%-2.5%.
Addition retarder: it is mainly used in calcium sulphate plaster and gypsum base joint sealing material.Mainly tartaric acid salt, usually exists 0.05%-0.25%。
Adding hydrophobing agent, (waterproofing agent: can prevent water from penetrating into mortar, while mortar is able to maintain opening-wide state still to carry out Water vapor diffusion.It is main with having a hydrophobic polymer redispersible powder, feature be after many years will not by rainwater from It rinses out in mortar, so having the advantages that service life is obviously prolonged, and improves bonding between hardened mortar and substrate Power.
Addition super plasticizer: it is used primarily in the Self-leveling dry powder and mortar having higher requirements.
Addition defoaming agent: it is mainly used to reduce the air content in mortar.Mainly on inorganic carrier hydrocarbon, There are also pigment, thickener, plasticizer etc. for the others such as polyethylene glycol additive.
It adds thixotropic lubricant: improving mortar thixotropy and lubricity, extend construction open hour and sag resistance, often Rule product is LBCB-1 thixotropic lubricant dosage 0.3-0.5%.
Compared with existing product, beneficial effect.
The present invention mixes levigate flyash in dry powder and mortar and strokes mountain flour, can not only save cement, but also can pole The earth improves the performance of dry powder and mortar, and the two is used in combination, and is the effective way for preparing high-performance dry-powder mortar, is replaced with them It is feasible that silicon ash, which prepares high-performance dry-powder mortar,.After flyash mixes in dry powder and mortar, there is diminishing, deferred action, The growth of intensity will seven days so that the later period could gradually embody;Zeolite powder has stronger humidification, especially early stage strong Degree.But since zeolite powder is lattice-like structure, water imbibition is stronger, and the cohesiveness of dry powder and mortar can be individually greatly increased after incorporation, The slump of dry powder and mortar mixture is reduced, slump-loss is increased.Therefore, dry powder sand is used for by flyash and zeolite powder are compound In slurry, it is complementary to one another the effect of the two, to obtain function admirable, lower-cost high-performance dry-powder mortar.
The present invention is added zeolite powder and uses common cement, iron tailings for raw material, honest and clean using conventional dry powder and mortar technique The high-performance dry-powder mortar that the active blend that valence is easy to get is prepared, production cost is low, and directly plus water is mixed, easy for construction, Easy to operate, construction efficiency is high;It protects and plasters for construction wall, waterproof performance is good, good heat insulating, crack resistance is good, plasters Flawless falls off without hollowing.Meet very much the actual conditions in China, the popularization of technique will promote China's high-strength special The universal and development of dry powder and mortar technology.
The levigate flyash of the present invention and zeolite powder prepare the also only trial of high-performance dry-powder mortar, dry for high-performance The development of powder mortar provides a new rhythm thinking.But when flyash and zeolite powder place of production difference, chemical component, fineness will be fluctuated Larger, stable specification product is same with cement to be supplied there are no being formed, in practical applications, there are many more problem up for into The research and discussion of one step.
There is some mineral gels in iron tailings of the present invention, they have certain electrical property, absorbability and huge table Face energy, under alkaline excitation, this colloidal substance can generate ion exchange with the hydrated product of cement slurry, form new cohesion Body.These condensates are all by reticular structure made of stronger chemical bonds.Simultaneously as building product is one Fixed forming under the pressure, the tightness of contact surface all increases between cement granules and mineral, in addition hydration reaction, makes it to have by force Be gelled to power quartz particles and other materials.Studies have shown that cement can be combined relatively closely in hydration process with quartz particles, It is only second to lime stone and dolomite.
The present invention takes addition zeolite appropriate, and completely available iron tailings substitutes traditional siliceous, traditional material, saves water Mud 10%, production dry powder and mortar quality is preferable, can be with the common and extraordinary grade dry powder and mortar of steady production, and ton cost reduces 40%。
Feature of the present invention is product quality height first: dry powder and mortar solves traditional handicraft preparation cement mortar ratio and is difficult to handle Holding leads to the problem of influencing quality, measures very accurate, reliable in quality.Because different purposes mortars are to the anti-shrink of material, anti- The requirement of the characteristics such as cracking, heat preservation, moisture-proof is different, and the workability of construction requirement, water-retaining property, setting time are also different.These Characteristic, which needs strictly to prepare according to scientific formula, to be just able to achieve, and only the production process of dry powder and mortar can meet this and want It asks.Because metering is accurate, quality assurance, all significantly improved using the construction quality after dry powder and mortar, the duration is obviously shortened, The amount of labour used is reduced;Secondly: being that kind is complete: being required according to the difference of construction, develop many products and specification.List is with regard to product Divide, just have adapt to all kinds of building demands and point masonry mortar, decorative mortar, terrace mortar;According to the difference of construction quality It is required that specification can be divided into M2.5, M5, M10, M15, M20, M25, M30 various specifications: having different consistency, layering in terms of quality The requirement of degree, density, intensity, according to the demand of different user, packaging can also be divided into 5kg, 20kg, 25kg, 50kg, several, Bulk vehicle sealing also can be used to transport;It is besides easy to use: it is used as needed just as instant noodles, add water 15% or so, Stirring 5--6 minute, remaining dry powder are made spare, have 3 months shelf-lifves, but placed 6 months in test, intensity There is no significant change.
Case study on implementation
(case one)
A kind of preparation step of zeolite iron tailings general polymer dry powder and mortar.
(1) material component A, it is iron tailings sand 65%, zeolite powder 8%, flyash 8%, cement 15%, gypsum 1.5%, finely divided organic Polymer powder 1.5%, cellulose ether 0.2%, 0.25 % of starch ether, aliphatic sulfonic acid sodium salt 0.02%, polypropylene anti-crack fiber 0.03%. Defoaming agent 0.2%, LBCB-1 thixotropic lubricant 0.3%.
(2) the raw material in feed bin is imported measuring chute, passes through the number of sensor by metering system under the cooperation of metering screw According to feedback, raw material metering is realized.
(3) the material after measuring is led into main bucket elevator by screw conveyor, is promoted to mixing machine top and wait for blending bunker In.
(4) storehouse to be mixed is pneumatic big enabling type, material to be mixed can be put into Agravicmixer rapidly, realize dry powder sand Starch continuous production.
(5) the finished product mixed inside mixing machine is put into rapidly finished product bin and is buffered, stored up by pneumatic quick operating valve It deposits.
(6) by being flexible coupling into packing machine metering, being packaged between finished product bin and packing machine.
(7) storage storage is examined.
Technical indicator:
Strength grade: M5, M10, M15, M20; 
Setting time/h:3~8; 
Water-retaining property/%: >=88; 
14d tensile bond strength: MPa >=0.2.
(case two)
A kind of preparation step of zeolite iron tailings special copolymer dry powder and mortar.
(1) material component A, iron tailings sand 56%, flyash 10%, cement 20%, gypsum 1.5%, finely divided have zeolite powder 10% Machine polymer powder 1.5%, cellulose ether 0.2%, 0.25 % of starch ether, aliphatic sulfonic acid sodium salt 0.02%, polypropylene anti-crack fiber 0.03%.Defoaming agent 0.2%, LBCB-1 thixotropic lubricant 0.3%.
(2) the raw material in feed bin is imported measuring chute, passes through the number of sensor by metering system under the cooperation of metering screw According to feedback, raw material metering is realized.
(3) the material after measuring is led into main bucket elevator by screw conveyor, is promoted to mixing machine top and wait for blending bunker In.
(4) storehouse to be mixed is pneumatic big enabling type, material to be mixed can be put into Agravicmixer rapidly, realize dry powder sand Starch continuous production.
(5) the finished product mixed inside mixing machine is put into rapidly finished product bin and is buffered, stored up by pneumatic quick operating valve It deposits.
(6) by being flexible coupling into packing machine metering, being packaged between finished product bin and packing machine.
(7) storage storage is examined.
Technical indicator:
Strength grade: M10, M15, M20;
Setting time/h: 3~8;
Water-retaining property/%: >=88; 
14d tensile bond strength: MPa >=0.20;
Seepage-resistant grade, P6, P8, P10.
Execution standard: GB18445-2001 ", " cementitious capillary waterproofing material JG/T230-2007 " pre- sand cutting Slurry ", JC/T 984-2005 " waterproof polymer mortar ", JC/T 1024-2007 " wall facing mortar ", GB/T 20473- 2006." building heat-insulating mortar ".
Reference:
" a kind of iron tailings heat insulation dry-mixing decorative mortar and preparation method thereof and process ": He Zhaofang;Wang Rui;Liu Peian;
" iron tailings resources development and utilization As-Is analysis " Li Yufeng, Bao Jingling, Zhang Jin are auspicious (Hebei University of Technology);
" component and its mechanism of action of dry powder and mortar " Ju Liyan, Zhang Xiong, Li Chunrong; 
" zeolite powder and flyash double admixtures high performance concrete " (Shenyang Jianzhu University building materials system).

Claims (10)

1. a kind of series of products for preparing iron tailings polymer mortar using zeolite: including general polymer mortar, special type polymerization Object mortar and other polymers mortar;Preparation method, by weight percentage: characterized by comprising the following steps:
A kind of zeolite prepares the method and step of iron tailings polymer dry powder mortar:
Be formulated (being measured with weight ratio): material component A, iron tailings sand 50~70%, zeolite powder 5~10%, flyash 5~10%, Cement 10~30%, gypsum 1~4%, fine disperse organic polymer 1~4%, cellulose ether 0.2~0.4%, starch ether 0.3~ 0.5%, aliphatic sulfonic acid sodium salt 0.01~0.03%, polypropylene anti-crack fiber 0.03~0.05%, defoaming agent 0.2~0.4%, LBCB-1 Thixotropic lubricant 0.3-0.5%;
(2) the raw material in feed bin is imported measuring chute under the cooperation of metering screw by metering system, anti-by the data of sensor Raw material metering is realized in feedback;
(3) the material after measuring: led by screw conveyor into main bucket elevator, promotion waits in blending bunker to mixing machine top;
(4) storehouse to be mixed is pneumatic big enabling type, material to be mixed can be put into Agravicmixer rapidly, realizes that dry powder and mortar connects Continuous production;
(5) the finished product mixed inside mixing machine is put into rapidly finished product bin and is buffered, stored by pneumatic quick operating valve;
(6) by being flexible coupling into packing machine metering, being packaged between finished product bin and packing machine;
(7) examine, be put in storage, storage.
2. zeolite prepares iron tailings polymer dry powder mortar material according to claim 1: it is characterized in that, the iron tailings Sand is that the thin tailings of 10~60 purposes is a kind of.
3. zeolite prepares iron tailings polymer dry powder mortar material according to claim 1: it is characterized in that, the zeolite powder For one kind of 300~400 mesh.
4. zeolite prepares iron tailings polymer dry powder mortar material according to claim 1: it is characterized in that, the flyash For its one kind.
5. zeolite prepares iron tailings polymer dry powder mortar material according to claim 1: it is characterized in that, the cement is Ordinary portland cement, white cement or high alumina cement at least one therein.
6. zeolite prepares iron tailings polymer dry powder mortar material according to claim 1: it is characterized in that, the gypsum is The natural gypsum, anhydrous gypsum or semi-hydrated gypsum at least one therein.
7. zeolite prepares iron tailings polymer dry powder mortar material according to claim 1: it is characterized in that, described finely divided Organic polymer is styrene-butadiene copolymer, Styrene-acrylic copolymer, vinyl acetate homopolymer, polyacrylic acid Ester homopolymer, acetic acid styrol copolymer or vinyl acetate-ethylene copolymer at least one therein.
8. zeolite prepares iron tailings polymer dry powder mortar material according to claim 1: it is characterized in that, the cellulose Ether is Na- carboxymethyl cellulose, ethyl cellulose, methylcellulose, hydroxylated cellulose ether, hydroxypropyl methyl cellulose or shallow lake Powder ester at least one therein.
9. zeolite prepares iron tailings polymer dry powder mortar material according to claim 1: it is characterized in that, the starch ether For its one kind;The defoaming agent 803 is that it is a kind of;The polypropylene anti-crack fiber is that it is a kind of.
10. zeolite prepares iron tailings polymer dry powder mortar material according to claim 1: it is characterized in that, the fat Sulfonate sodium is that it is a kind of;The LBCB-1 thixotropic lubricant is that it is a kind of.
CN201910177728.4A 2019-03-10 2019-03-10 Zeolite prepares iron tailings dry powder and mortar Pending CN109987912A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111960788A (en) * 2020-08-05 2020-11-20 刘兴兵 Process method and process equipment for preparing plastering gypsum from iron tailings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111960788A (en) * 2020-08-05 2020-11-20 刘兴兵 Process method and process equipment for preparing plastering gypsum from iron tailings

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