CN104478276A - Granulated blast furnace slag liquid composite grinding aid - Google Patents
Granulated blast furnace slag liquid composite grinding aid Download PDFInfo
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- CN104478276A CN104478276A CN201410663488.6A CN201410663488A CN104478276A CN 104478276 A CN104478276 A CN 104478276A CN 201410663488 A CN201410663488 A CN 201410663488A CN 104478276 A CN104478276 A CN 104478276A
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Abstract
The invention relates to a granulated blast furnace slag liquid composite grinding aid and belongs to the technical field of granulated blast furnace slag grinding process admixtures. The granulated blast furnace slag liquid composite grinding aid is prepared from triethanolamine, mixed alcohol, propanetriol, molasses, potassium carbonate, sodium pyrophosphate, sodium sulfate and water; and the granulated blast furnace slag liquid composite grinding aid is formed by composition of the most common chemical raw materials and industrial wastes, and has the advantages of low toxicity, no volatilization, stable sources, sufficient sources and low cost. After the granulated blast furnace slag liquid composite grinding aid provided by the invention is added into a grinding machine, the distribution and appearance of slag powder particles can be improved, the adverse effects on quality of slag powder are avoided, the effects of saving power consumption and improving grinding efficiency can be realized, and the granulated blast furnace slag liquid composite grinding aid has the advantages of better increasing the yield and improving the quality of the slag powder. Under the situation of same grinding time, the specific surface area of the slag powder is effectively improved, the screening residues are reduced, and the activity indexes of the slag powder in the early stage (7d) and the late stage (28d) are significantly improved.
Description
Technical field
The present invention relates to a kind of granulated blast-furnace slag liquid composite grinding aids, it belongs to the technical field of GBFS grinding process admixture.
Background technology
Granulated blast-furnace slag is called for short slag, the waste residue produced when being iron and steel enterprise's manUfaCtUre of pig iron.Along with China's steel industry is flourish, the slag of several ten million tons to be discharged every year.The slag of bulk deposition, not only occupies land used, but also can cause environmental pollution.Therefore, how utilizing slag solid waste, is the problem that Chinese metallargist studies for many years always, is also to develop a circular economy, build a conservation-minded society and a realistic problem that friendly environment society should solve emphatically.Slag great majority use as cement mixture for a long time, with cement clinker intergrinding, now the fineness of slag powders is weighed general at below 250m2/kg by specific surface area, this does not make its potential hydraulically active be not fully exerted, from the energy and resource view, can say that it is huge waste to a kind of precious resources that slag is used as the adulterant of conventional cement.After slag separate grinding to certain fineness (generally at 400m
2/ more than kg), then be incorporated in cement and concrete, the workability of fresh concrete can not only be improved, the weather resistance of maturing can also be improved significantly.But in order to obtain thinner slag powders, often needing the time that grinding is longer, adding energy consumption.Meanwhile along with the prolongation of grinding time, fineness of materials increases gradually, and its specific surface area can also increase, and subparticle is assembled mutually, the trend of conglomeration strengthens.Through after a period of time, the homeostasis process of " grinding-reunion " in grinding machine, can be in, reach so-called " the grinding limit ".In this state, even if extend grinding time again, material also difficult grinding obtains thinner, sometimes even makes particle thicker.A good terms of settlement adds grinding aid exactly.
The slag grinding aid majority studied and use both at home and abroad is at present expensive, source shortage, and volume is bigger than normal, not obvious to slag grinding-aid effect; And certain help can only be had to the raising of slag early activity, and little without acting on or acting on to the raising of slag later stage activity index, thus popularity application is restricted.Cement grinding aid is directly used in the middle of slag milling by some slag milling manufacturing enterprise in addition, due to slag and cement clinker structure different, grindability, hydration reaction speed there are differences, so cement grinding aid grinding-aid effect is often not good, can not slag grinding aid be replaced to be used in the middle of slag milling cement grinding aid simply.
CN102249586A adopts molasses, trolamine, three Virahol peaces, mixing dibasic alcohol, sodium-acetate, sodium hydroxide and water to be composited.Trolamine and tri-isopropanolamine all belong to alkanol amine substance, are all organism tensio-active agents, and difference is little, and the two can used in combinationly also can be used alone.But in actual production, from the angle that saves production cost, how a kind of use of raw material, no matter from the transport of raw material, carrying, storage aspect, or from keeping the aspect of finished product grinding aid quality stability complexity, capital makes production cost break-in improve, thus makes grinding aid price increase, is not easy to large-scale promotion and uses.Mixing dibasic alcohol (ethylene glycol and glycol ether) is expensive, is unfavorable for cost-saving.It is active that sodium hydroxide can improve slag early stage (7d), but for slag later stage (28d) active growth, act on not obvious.
The technical scheme that CN101781690A adopts is trolamine 15 ~ 20%, wooden calcium 10 ~ 15%, water glass 15 ~ 20%, water 45 ~ 55%.In this invention, modulus of water glass is 1.75 ~ 2.1, adds in mixed solution, easily condenses, form this modulus water glass the precipitate of similar cotton for wadding shape, be inconvenient to use.
The compound liquid cement grinding additive that CN102503232A is configured by trolamine, tri-isopropanolamine, glycerol, molasses, propylene glycol, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 and water.Cement grinding aid be add in cement pulverizing course there is the mobility improving material, reduce electrostatic adhesion phenomenon, reduce the formation of reuniting, improve cement technology index, and then can the grinding aid of energy efficient; And slag grinding aid should have and improves the effect of mill efficiency, also want to improve that slag is early stage, later stage activity index, CN102503232A can only improve slag milling efficiency, does not act on the growth of slag reactivity, is not suitable for slag milling and produces.
Summary of the invention
In view of prior art above shortcomings; the object of the invention is to provide one can reduce powder surface free energy, can generally be suitable for again, powder granule distribution and pattern can be improved; improve mill efficiency, significantly promote the granulated blast-furnace slag liquid composite grinding aids of 7d, 28d activity index.
To achieve these goals; the technical solution adopted in the present invention is a kind of granulated blast-furnace slag liquid composite grinding aids; it is prepared from by trolamine, mixed alcohol, glycerol, molasses, salt of wormwood, trisodium phosphate, sodium sulfate and water, and the parts by weight of each material are: trolamine 1-30 weight part, mixed alcohol 10-20 weight part, glycerol 1-10 weight part, molasses 5-10 weight part, salt of wormwood 1-10 weight part, trisodium phosphate 1-10 weight part, sodium sulfate 1-10 weight part, water 30-50 weight part.
The parts by weight of each material described are: trolamine 20-30 weight part, mixed alcohol 15-20 weight part, glycerol 5-10 weight part, molasses 5-8 weight part, salt of wormwood 1-5 weight part, trisodium phosphate 1-5 weight part, sodium sulfate 1-5 weight part, water 40-50 weight part.
Described trolamine is the liquid of 90%.
Described mixed alcohol is main alcohol mixture by ethylene glycol, glycol ether, triglycol and Tetraglycol 99.
The preparation for processing of granulated blast-furnace slag liquid composite grinding aids of the present invention, obtains desired product by various raw material mixing and stirring.
The advantage that the present invention has and effect are:
1, a kind of granulated blast-furnace slag liquid of the present invention composite grinding aids is composited by modal industrial chemicals and industrial waste, low toxicity, non-volatile, steady sources, ample supply and prompt delivery, with low cost;
2, adopt mixed alcohol, mixed alcohol also claims alcohol mixture, thick alcohol, is be main alcohol mixture by ethylene glycol, glycol ether, triglycol and Tetraglycol 99, can plays alcohol compound synergy, and cheap;
3, organic compound and inorganic salt used in combination.Organic compound is all tensio-active agents, mainly plays grinding aid, improves the effect of mill efficiency.Salt of wormwood in inorganic salt and trisodium phosphate belong to strong base-weak acid salt, can improve the basicity of slag aquation liquid phase after hydrolysis, and vitreous state silica network in slag is disintegrated rapidly, accelerate early hydration reaction, improve early stage (7d) activity index of slag; Sodium sulfate, in alkaline environment, can accelerate slag silica polymeric chain and destroy, and accelerates slag dispersing and dissolving speed, forms hydrated calcium silicate and drated calcium aluminate, thus ensure that the raising of slag later stage (28d) activity index.
4, powder granule distribution and pattern can be improved after this grinding aid mixes slag, slag quality is had no adverse effects, there is the advantage carried product preferably, improve slag powders quality.Slag liquid composite grinding aids of the present invention adds in grinding machine with the volume of slag quality 0.04% ~ 0.13%, the effect of the early stage and later stage activity index of slag powders that can play and save power consumption, improve mill efficiency, effectively improve slag powders specific surface area, increase.
It is 0.04% ~ 0.13% that this invention grinding aid adds weight percent in slag, granulated blast-furnace slag is put into ball mill grinding, and the time is 50 minutes, contrasts with blank sample.
Touchstone is according to GB/T18046-2008 " GBFS in cement and concrete ".Concrete test-results is in table 1, and table 1 is slag milling testing data.
Table 1 slag milling testing data
From testing data, compared with blank sample, after mixing grinding aid, slag powders tails over reduction, and specific surface area increases, and 7 days and 28 days activity indexs significantly improve; Slag powders rank brings up to S105 level from S95 level.
Embodiment
Embodiment 1:
A kind of granulated blast-furnace slag liquid composite grinding aids; it is prepared from by trolamine, mixed alcohol, glycerol, molasses, salt of wormwood, trisodium phosphate, sodium sulfate and water, and the parts by weight of each material are: trolamine 20 weight part, mixed alcohol 18 weight part, glycerol 7 weight part, molasses 5 weight part, salt of wormwood 2 weight part, trisodium phosphate 1 weight part, sodium sulfate 2 weight part, water 45 weight part.
A kind of granulated blast-furnace slag liquid of the present invention composite grinding aids adopts customary preparation methods, is mixed by above-mentioned substance, stir and obtain granulated blast-furnace slag liquid composite grinding aids according to proportioning.
Embodiment 2
A kind of granulated blast-furnace slag liquid composite grinding aids; it is prepared from by trolamine, mixed alcohol, glycerol, molasses, salt of wormwood, trisodium phosphate, sodium sulfate and water, and the parts by weight of each material are: trolamine 25 weight part, mixed alcohol 17 weight part, glycerol 8 weight part, molasses 6 weight part, salt of wormwood 2 weight part, trisodium phosphate 2 weight part, sodium sulfate 1 weight part, water 42 weight part.
A kind of granulated blast-furnace slag liquid of the present invention composite grinding aids adopts customary preparation methods, is mixed by above-mentioned substance, stir and obtain granulated blast-furnace slag liquid composite grinding aids according to proportioning.
Embodiment 3
A kind of granulated blast-furnace slag liquid composite grinding aids; it is prepared from by trolamine, mixed alcohol, glycerol, molasses, salt of wormwood, trisodium phosphate, sodium sulfate and water, and the parts by weight of each material are: trolamine 30 weight part, mixed alcohol 20 weight part, glycerol 10 weight part, molasses 5 weight part, salt of wormwood 2 weight part, trisodium phosphate 2 weight part, sodium sulfate 4 weight part, water 50 weight part.
A kind of granulated blast-furnace slag liquid of the present invention composite grinding aids adopts customary preparation methods, is mixed by above-mentioned substance, stir and obtain granulated blast-furnace slag liquid composite grinding aids according to proportioning.
Embodiment 4
A kind of granulated blast-furnace slag liquid composite grinding aids; it is prepared from by trolamine, mixed alcohol, glycerol, molasses, salt of wormwood, trisodium phosphate, sodium sulfate and water, and the parts by weight of each material are: trolamine 15 weight part, mixed alcohol 20 weight part, glycerol 5 weight part, molasses 8 weight part, salt of wormwood 2 weight part, trisodium phosphate 4 weight part, sodium sulfate 3 weight part, water 40 weight part.
A kind of granulated blast-furnace slag liquid of the present invention composite grinding aids adopts customary preparation methods, is mixed by above-mentioned substance, stir and obtain granulated blast-furnace slag liquid composite grinding aids according to proportioning.
Claims (4)
1. a granulated blast-furnace slag liquid composite grinding aids, is characterized in that: it is prepared from by trolamine, mixed alcohol, glycerol, molasses, salt of wormwood, trisodium phosphate, sodium sulfate and water; The parts by weight of each material are: trolamine 1-30 weight part, mixed alcohol 10-20 weight part, glycerol 1-10 weight part, molasses 5-10 weight part, salt of wormwood 1-10 weight part, trisodium phosphate 1-10 weight part, sodium sulfate 1-10 weight part, water 30-50 weight part.
2. a kind of granulated blast-furnace slag liquid composite grinding aids according to claim 1, is characterized in that: the parts by weight of each material described are: trolamine 20-30 weight part, mixed alcohol 15-20 weight part, glycerol 5-10 weight part, molasses 5-8 weight part, salt of wormwood 1-5 weight part, trisodium phosphate 1-5 weight part, sodium sulfate 1-5 weight part, water 40-50 weight part.
3. according to the granulated blast-furnace slag liquid composite grinding aids described in claim 1 or 2, it is characterized in that: described trolamine is the liquid of 90%.
4. according to the granulated blast-furnace slag liquid composite grinding aids described in claim 1 or 2, it is characterized in that: described mixed alcohol is main alcohol mixture by ethylene glycol, glycol ether, triglycol and Tetraglycol 99.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104926190A (en) * | 2015-05-27 | 2015-09-23 | 湖州华仑助剂科技有限公司 | Composite cement grinding aid |
| CN110734240A (en) * | 2018-07-18 | 2020-01-31 | 盱眙县江淮建材科技有限公司 | cement retarding and reinforcing agents with physical and chemical double action |
| CN110790524A (en) * | 2019-10-30 | 2020-02-14 | 东南大学 | Steel slag acidic vertical grinding agent and preparation and application thereof |
| CN111825354A (en) * | 2020-06-29 | 2020-10-27 | 山东莒州浮来山水泥有限公司 | Slag powder active agent based on dual-alkali desulfurization waste, and preparation method and application thereof |
| CN113233796A (en) * | 2021-06-30 | 2021-08-10 | 湖北理工学院 | Tailing filling full-solid waste cementing material and preparation method thereof |
| CN115947558A (en) * | 2022-12-28 | 2023-04-11 | 广州基业长青新材料有限公司 | Mineral powder grinding aid containing industrial waste and preparation method and application thereof |
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| CN102249586A (en) * | 2011-05-13 | 2011-11-23 | 洛阳万顺建材有限公司 | Grinding-assistant reinforcing agent for mineral powder |
| CN102417321A (en) * | 2011-09-07 | 2012-04-18 | 宜兴市宏伟科技有限公司 | Slag composite grinding aid |
| CN102923982A (en) * | 2012-11-06 | 2013-02-13 | 沈阳建筑大学 | Liquid composite grinding aid for granulated blast-furnace slag and preparation method thereof |
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| CN1958501A (en) * | 2006-11-21 | 2007-05-09 | 武汉理工大学 | Slag composite activated grinding aids, and preparation method |
| WO2011022217A1 (en) * | 2009-08-20 | 2011-02-24 | W.R. Grace & Co.-Conn. | Robust air-detraining for cement milling |
| CN102249586A (en) * | 2011-05-13 | 2011-11-23 | 洛阳万顺建材有限公司 | Grinding-assistant reinforcing agent for mineral powder |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104926190A (en) * | 2015-05-27 | 2015-09-23 | 湖州华仑助剂科技有限公司 | Composite cement grinding aid |
| CN110734240A (en) * | 2018-07-18 | 2020-01-31 | 盱眙县江淮建材科技有限公司 | cement retarding and reinforcing agents with physical and chemical double action |
| CN110790524A (en) * | 2019-10-30 | 2020-02-14 | 东南大学 | Steel slag acidic vertical grinding agent and preparation and application thereof |
| CN111825354A (en) * | 2020-06-29 | 2020-10-27 | 山东莒州浮来山水泥有限公司 | Slag powder active agent based on dual-alkali desulfurization waste, and preparation method and application thereof |
| CN113233796A (en) * | 2021-06-30 | 2021-08-10 | 湖北理工学院 | Tailing filling full-solid waste cementing material and preparation method thereof |
| CN115947558A (en) * | 2022-12-28 | 2023-04-11 | 广州基业长青新材料有限公司 | Mineral powder grinding aid containing industrial waste and preparation method and application thereof |
| CN115947558B (en) * | 2022-12-28 | 2024-04-05 | 广州基业长青新材料股份有限公司 | Mineral powder grinding aid containing industrial waste and preparation method and application thereof |
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Application publication date: 20150401 |