CN100404455C - Cement composite grinding aids, and preparation method - Google Patents
Cement composite grinding aids, and preparation method Download PDFInfo
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- CN100404455C CN100404455C CNB2006101250832A CN200610125083A CN100404455C CN 100404455 C CN100404455 C CN 100404455C CN B2006101250832 A CNB2006101250832 A CN B2006101250832A CN 200610125083 A CN200610125083 A CN 200610125083A CN 100404455 C CN100404455 C CN 100404455C
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- glycerine
- glycol ether
- grinding
- cement
- sodium sulfate
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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
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Disintegrating Or Milling (AREA)
Abstract
This invention relates to a method for preparing composite grinding aid used in cement production. The composite grinding aid is composed of: diethylene glycol 20-68 wt.%, glycerol 20-68 wt.%, sodium sulfate 2-5 wt.%, and magnetic water 10-50 wt.%. The magnetic water is prepared by magnetizing tap water for 30-120s with a water flow rate of 0.3-1.2 m/s and a magnetic field intensity of 200-1000 mT. The composite grinding aid can lower grinding cost, improve grinding effect, increase cement yield, improve cement properties, lower power consumption of the grinding machine, and increase grinding efficiency by 10-20%. Besides, the composite grinding aid can improve 3-day strength of cement by 2-4 MPa and 28-day strength by 5-8 MPa.
Description
Technical field
The present invention relates to cement composite grinding additive that uses in a kind of manufacture of cement and preparation method thereof, belong to the grinding aid additive agent field in the production of cement and gelling material.
Background technology
Energy-conservation is the key subjects of current manufacture of cement, in the Cement industry power consumption total amount, power consumption accounts for 18-22%, wherein pulverizing cement and raw material electricity consumption account for 2/3 of power consumption total amount, improve grinding machine and no doubt can save power consumption, but increased facility investment and process complexity, factory is difficult to bear often; Can improve mill efficiency though prolong the grinding time, increase power consumption, increase the grinding cost; Simultaneously in grinding process, because material is subjected to the influence of various power to cause the electrovalent bond of granule interior to rupture in grinding process, produce the difference of electron density, form a series of staggered active sites in the section both sides, they attract each other, make surface of fracture trend towards compound and material is reunited, thereby grinding output and quality are descended significantly.For reducing the grinding energy consumption, stop the healing of slag surface of fracture and reducing agglomeration, adopting grinding aid is the most simple way, adopts suitable grinding aid can improve mill efficiency 10-20%.At present, though cement grinding aid has been done a lot of researchs both at home and abroad, except that the minority grinding aid is relatively more successful, most of grinding aids are because its grinding-aid effect is limited, or the use cost costliness, or be difficult to improve cement quality or the like, limited applying of grinding aid.
Summary of the invention
Purpose of the present invention provide a kind of can reduce grinding cost, grinding-aid effect good, improve cement composite grinding additive of output and preparation method thereof.
To achieve these goals, technical scheme of the present invention is: a kind of cement composite grinding additive, it is characterized in that it mainly is mixed into by glycol ether, glycerine, sodium sulfate and magnetized water raw material, the shared mass percent of each raw material is: glycol ether 20-68, glycerine 20-68, sodium sulfate 2-5, magnetized water 10-50;
Above-mentioned magnetized water is that tap water obtains through magnetizing assembly, and the magneticstrength of magnetizing assembly is 200-1000mT, and flow velocity is 0.3-1.2m/s, and magnetizing time is 30-120s.
Above-mentioned glycol ether is the technical grade glycol ether.
Above-mentioned glycerine is technical grade glycerine.
The preparation method of above-mentioned a kind of cement composite grinding additive is characterized in that it comprises the steps:
1) choosing of raw material: be by the shared mass percent of each raw material: glycol ether 20-68, glycerine 20-68, sodium sulfate 2-5, magnetized water 10-50 choose glycol ether, glycerine, sodium sulfate and magnetized water raw material, and be standby;
2) earlier glycol ether is at room temperature joined in the magnetized water, after stirring, again with glycerine and fully mix, add sodium sulfate at last and mix, the gained mixing solutions is product.
Above-mentioned magnetized water is that tap water obtains through magnetizing assembly, and the magneticstrength of magnetizing assembly is 200-1000mT, and flow velocity is 0.3-1.2m/s, and magnetizing time is 30-120s.
The application of above-mentioned a kind of cement composite grinding additive: the incorporation for cement clinker is the 0.005%-0.03% of grinding material weight, is the 0.01%-0.05% of grinding material weight for the mechanically resistant material incorporation of non-cement clinker; Its addition manner is for spraying in the grinding machine by high-efficiency atomizer by setting volume.
The invention has the beneficial effects as follows:
1, a kind of cement composite grinding additive of the present invention is mixed into by glycol ether, glycerine, sodium sulfate and magnetized water raw material, and cost of material is cheap, the source is sufficient, and production technique is simple, has the advantages that significantly to reduce the grinding cost.
2, the present invention adopts and is mixed into by glycol ether, glycerine, sodium sulfate and magnetized water raw material, this composite activated grinding aids is adsorbed on particle surface shielding particulate surface residual electric charge, prevents the coalescent of powder, stops section to overlap, reduce agglomeration, thereby helped improving the fineness of slag powders; Simultaneously, the activity of this composite activated grinding aids energy exciting slag cement, the hydration rate of raising slag cement promotes further densification of hardened cement paste.So, can improve the grinding fineness of cement, can improve the Blain specific surface of cement again, its grinding-aid effect is good; And can improve cement output, effectively improve cement performance, reduce power consumption of the mill.Can improve mill efficiency 10-20% after using this cement composite grinding additive, improve three days intensity 2-4MPa, 28 days intensity 5-8MPa.
3, can reduce dust from flying behind use a kind of cement composite grinding additive of the present invention, improve cement grinding shopwork environment.Can obtain good economic benefit and social benefit, thereby be easy to promote the use of, have good popularizing application prospect in Cement industry.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.
Embodiment 1:
A kind of preparation method of cement composite grinding additive, it comprises the steps:
1) choosing of raw material: be by the shared mass percent of each raw material: glycol ether 20, glycerine 60, sodium sulfate 2, magnetized water 18 are chosen glycol ether, glycerine, sodium sulfate and magnetized water raw material, and is standby; Described glycol ether is the technical grade glycol ether; Described glycerine is technical grade glycerine; Described magnetized water is that tap water obtains through magnetizing assembly, and the magneticstrength of magnetizing assembly is 700mT, and flow velocity is 0.7m/s, and magnetizing time is 40s.
2) earlier glycol ether is at room temperature joined in the magnetized water, after stirring, again with glycerine and fully mix, add sodium sulfate at last and mix, the gained mixing solutions is product (a kind of cement composite grinding additive).
Embodiment 2:
A kind of preparation method of cement composite grinding additive, it comprises the steps:
1) choosing of raw material: be by the shared mass percent of each raw material: glycol ether 50, glycerine 20, sodium sulfate 5, magnetized water 25 are chosen glycol ether, glycerine, sodium sulfate and magnetized water raw material, and is standby; Described glycol ether is the technical grade glycol ether; Described glycerine is technical grade glycerine; Described magnetized water is that tap water obtains through magnetizing assembly, and the magneticstrength of magnetizing assembly is 500mT, and flow velocity is 1.0m/s, and magnetizing time is 100s.
2) earlier glycol ether is at room temperature joined in the magnetized water, after stirring, again with glycerine and fully mix, add sodium sulfate at last and mix, the gained mixing solutions is product (a kind of cement composite grinding additive).
Embodiment 3:
A kind of preparation method of cement composite grinding additive, it comprises the steps:
1) choosing of raw material: be by the shared mass percent of each raw material: glycol ether 30, glycerine 30, sodium sulfate 5, magnetized water 35 are chosen glycol ether, glycerine, sodium sulfate and magnetized water raw material, and is standby; Described glycol ether is the technical grade glycol ether; Described glycerine is technical grade glycerine; Described magnetized water is that tap water obtains through magnetizing assembly, and the magneticstrength of magnetizing assembly is 800mT, and flow velocity is 1.0m/s, and magnetizing time is 60s.
2) earlier glycol ether is at room temperature joined in the magnetized water, after stirring, again with glycerine and fully mix, add sodium sulfate at last and mix, the gained mixing solutions is product (a kind of cement composite grinding additive).
Use the 5kg test mill, 0.02% cement composite grinding additive is mixed in cement clinker, gypsum and the mixture of fly ash, grinding 25 minutes, gained cement physical and mechanical property sees Table 1.
Table 1
As known from Table 1, this cement composite grinding additive can improve the grinding fineness of cement, can improve the Blain specific surface of cement again, and can also improve the cement intensity in each length of time, and intensity can improve 2-4MPa in 3 days, and intensity can improve 5-8MPa in 28 days; It is very little for the consumptive use of water normal consistence and influence time of coagulation of cement to add this cement composite grinding additive, complies with the national standard requirements.
When using this cement composite grinding additive, preferably direct addition manner with cement composite grinding additive of the present invention is to spray in the grinding machine by high-efficiency atomizer by optimizing volume.And according to the grindability of mill feed material, regulate the add-on of grinding aid: the incorporation for cement clinker is the 0.005%-0.03% of grinding material weight, is the 0.01%-0.05% of grinding material weight for the mechanically resistant material incorporation of non-cement clinker.
Embodiment 4:
A kind of preparation method of cement composite grinding additive, it comprises the steps:
1) choosing of raw material: be by the shared mass percent of each raw material: glycol ether 68, glycerine 20, sodium sulfate 2, magnetized water 10 are chosen glycol ether, glycerine, sodium sulfate and magnetized water raw material, and is standby; Described glycol ether is the technical grade glycol ether; Described glycerine is technical grade glycerine; Described magnetized water is that tap water obtains through magnetizing assembly, and the magneticstrength of magnetizing assembly is 200mT, and flow velocity is 0.3m/s, and magnetizing time is 30s.
2) earlier glycol ether is at room temperature joined in the magnetized water, after stirring, again with glycerine and fully mix, add sodium sulfate at last and mix, the gained mixing solutions is product.
The application of above-mentioned a kind of cement composite grinding additive: the incorporation for cement clinker is 0.005% of a grinding material weight, and its addition manner is for spraying in the grinding machine by high-efficiency atomizer by setting volume.
Embodiment 5:
A kind of preparation method of cement composite grinding additive, it comprises the steps:
1) choosing of raw material: be by the shared mass percent of each raw material: glycol ether 20, glycerine 68, sodium sulfate 2, magnetized water 10 are chosen glycol ether, glycerine, sodium sulfate and magnetized water raw material, and is standby; Described glycol ether is the technical grade glycol ether; Described glycerine is technical grade glycerine; Described magnetized water is that tap water obtains through magnetizing assembly, and the magneticstrength of magnetizing assembly is 1000mT, and flow velocity is 1.2m/s, and magnetizing time is 120s.
2) earlier glycol ether is at room temperature joined in the magnetized water, after stirring, again with glycerine and fully mix, add sodium sulfate at last and mix, the gained mixing solutions is product.
The application of above-mentioned a kind of cement composite grinding additive: the mechanically resistant material incorporation for non-cement clinker is 0.01% of a grinding material weight; Its addition manner is for spraying in the grinding machine by high-efficiency atomizer by setting volume.
Embodiment 6:
A kind of preparation method of cement composite grinding additive, it comprises the steps:
1) choosing of raw material: be by the shared mass percent of each raw material: glycol ether 25, glycerine 22, sodium sulfate 3, magnetized water 50 are chosen glycol ether, glycerine, sodium sulfate and magnetized water raw material, and is standby; Described glycol ether is the technical grade glycol ether; Described glycerine is technical grade glycerine; Described magnetized water is that tap water obtains through magnetizing assembly, and the magneticstrength of magnetizing assembly is 300mT, and flow velocity is 0.6m/s, and magnetizing time is 50s.
2) earlier glycol ether is at room temperature joined in the magnetized water, after stirring, again with glycerine and fully mix, add sodium sulfate at last and mix, the gained mixing solutions is product.
The application of above-mentioned a kind of cement composite grinding additive: the incorporation for cement clinker is 0.03% of a grinding material weight, is 0.05% of grinding material weight for the mechanically resistant material incorporation of non-cement clinker; Its addition manner is for spraying in the grinding machine by high-efficiency atomizer by setting volume.
Claims (5)
1. a cement composite grinding additive is characterized in that it mainly is mixed into by glycol ether, glycerine, sodium sulfate and magnetized water raw material, and the shared mass percent of each raw material is: glycol ether 20-68, glycerine 20-68, sodium sulfate 2-5, magnetized water 10-50;
Described magnetized water is that tap water obtains through magnetizing assembly, and the magneticstrength of magnetizing assembly is 200-1000mT, and flow velocity is 0.3-1.2m/s, and magnetizing time is 30-120s.
2. a kind of cement composite grinding additive according to claim 1 is characterized in that: described glycol ether is the technical grade glycol ether.
3. a kind of cement composite grinding additive according to claim 1 is characterized in that: described glycerine is technical grade glycerine.
4. the preparation method of a kind of cement composite grinding additive as claimed in claim 1 is characterized in that it comprises the steps:
1) choosing of raw material: be by the shared mass percent of each raw material: glycol ether 20-68, glycerine 20-68, sodium sulfate 2-5, magnetized water 10-50 choose glycol ether, glycerine, sodium sulfate and magnetized water raw material, and be standby;
2) earlier glycol ether is at room temperature joined in the magnetized water, after stirring, again with glycerine and fully mix, add sodium sulfate at last and mix, the gained mixing solutions is product.
5. the application of a kind of cement composite grinding additive as claimed in claim 1: the incorporation for cement clinker is the 0.005%-0.03% of grinding material weight, is the 0.01%-0.05% of grinding material weight for the mechanically resistant material incorporation of non-cement clinker; Its addition manner is for spraying in the grinding machine by atomisation unit by setting volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101250832A CN100404455C (en) | 2006-11-21 | 2006-11-21 | Cement composite grinding aids, and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101250832A CN100404455C (en) | 2006-11-21 | 2006-11-21 | Cement composite grinding aids, and preparation method |
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| CN1958500A CN1958500A (en) | 2007-05-09 |
| CN100404455C true CN100404455C (en) | 2008-07-23 |
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| CNB2006101250832A Expired - Fee Related CN100404455C (en) | 2006-11-21 | 2006-11-21 | Cement composite grinding aids, and preparation method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060462B (en) * | 2010-12-10 | 2012-11-21 | 山东宏艺科技股份有限公司 | Preparation method of enforced flyash cement grinding aid |
| CN105753414B (en) * | 2016-03-25 | 2018-06-22 | 陕西煤业化工技术研究院有限责任公司 | A kind of waterproof slab injecting paste material based on magnetized water and preparation method thereof |
| CN116159660A (en) * | 2022-12-31 | 2023-05-26 | 龙祥雨(深圳)科技有限公司 | Preparation method of liquid raw material grinding aid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106918A (en) * | 1986-10-27 | 1988-05-18 | 国家建筑材料工业局建筑材料科学研究院水泥科学研究所 | Cement composite grinding additive |
| CN1346812A (en) * | 2001-08-14 | 2002-05-01 | 刘长林 | Grinding aid for cement |
-
2006
- 2006-11-21 CN CNB2006101250832A patent/CN100404455C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106918A (en) * | 1986-10-27 | 1988-05-18 | 国家建筑材料工业局建筑材料科学研究院水泥科学研究所 | Cement composite grinding additive |
| CN1346812A (en) * | 2001-08-14 | 2002-05-01 | 刘长林 | Grinding aid for cement |
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| CN1958500A (en) | 2007-05-09 |
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Granted publication date: 20080723 Termination date: 20101121 |