CN108623205B - Method for improving homogeneity of cement grinding aid - Google Patents
Method for improving homogeneity of cement grinding aid Download PDFInfo
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- CN108623205B CN108623205B CN201710162447.2A CN201710162447A CN108623205B CN 108623205 B CN108623205 B CN 108623205B CN 201710162447 A CN201710162447 A CN 201710162447A CN 108623205 B CN108623205 B CN 108623205B
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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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/48—Clinker treatment
- C04B7/52—Grinding ; After-treatment of ground cement
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/52—Grinding aids; Additives added during grinding
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A method for improving the homogeneity of a cement grinding aid relates to the field of cement additives, and mainly comprises a water treatment process and a grinding aid compounding process. Wherein, the water treatment process comprises the following steps: firstly, adding a purifying agent; processing with sound waves; filtering; and fourthly, thickening water. The parameters in each step are as follows: (1) purifying agent: 3 wt% -10 wt%; (2) ultrasonic frequency: 20-35 KHZ; (3) thickening agent: 2 wt% -10 wt%; (4) the acoustic wave treatment time is as follows: 10-30 min. (II) the related parameters of the compound process and all the substances are as follows: adding the water obtained in the first step into a container, dissolving salt, and performing sound wave treatment. Adding alcohol amine and industrial waste in sequence, stirring for 15min, and dispersing by sound wave. The parameters of the substances are as follows: (1) alcohol amine: 10% -20%; (2) industrial salt: 8% -17%; (3) industrial waste: 20 to 30 percent; (4) water: 48% -60%; (5) ultrasonic time: 10min to 30 min. The grinding aid obtained by the invention has greatly improved effective components, is uniform, stable and free from sedimentation, and has great application prospect.
Description
Technical Field
The invention relates to a method for improving the homogeneity of a cement grinding aid, relates to the field of compounding of cement concrete additives, and particularly belongs to the field of production of cement grinding aids.
Background
At present, in order to reduce energy consumption and improve cement yield in the cement production process of most cement enterprises in China, a certain amount of grinding aid is added in the cement production to achieve the aims of energy conservation and emission reduction. The cement grinding aid can improve the performance of cement products and realize the comprehensive utilization of industrial solid waste raw materials. Therefore, the application of the grinding aid is a great revolution in the cement industry, and simultaneously is a response to the national advocated sustainable development road with high quality, high efficiency, low consumption and environmental compatibility.
The alcamines such as triethanolamine/triisopropanolamine are well-known raw materials. However, with the development of the grinding aid industry, the variety of raw materials of the grinding aid is more and moreIn addition, alcohol amine substances can be mixed with some trace ions such as Ca in water when the grinding aid is compounded2+、Mg2+The plasma generates a complex reaction to generate flocculent precipitate, so that the effective components in the grinding aid are reduced. Meanwhile, after some industrial raw materials are dissolved in water, some indissolvable components in the industrial raw materials are settled due to the fact that the surface tension of the water is small in the dilution process, the homogeneity of the grinding aid is seriously affected, and the performance of the cement grinding aid is reduced. Therefore, a method for improving the homogeneity of the cement grinding aid is researched, the method can well improve the performance of the cement grinding aid, solve the problem of precipitation during the compounding of the grinding aid, and greatly improve the production process of the grinding aid.
Disclosure of Invention
The invention mainly solves the problem of flocculent precipitate during compounding of the grinding aid, and discloses a method for solving homogenization of a cement grinding aid.
In order to solve the problem, the invention provides a treatment process of grinding aid compounding water, which improves the sedimentation problem during the compounding of the cement grinding aid by purifying and thickening the water. The concrete implementation steps and related mixture ratios are as follows:
water treatment process
Firstly, adding a purifying agent: adding purifying agent, and stirring for 30 min.
Acoustic wave processing: the sound wave water treatment mainly destroys colloid ion groups in water, and makes the colloid groups and the purifying agent in water settle.
Filtering: suspended matters and part of colloid in the water are removed through gravity sedimentation, the turbidity of the water is reduced, and then the supernatant is filtered and adsorbed through high-activity adsorbate to remove residual micro-particles.
Thickening water: and (4) adding a thickening agent into the water obtained in the step (iii), stirring for 10min to increase the viscosity of the water, and then performing sound wave dispersion to realize homogenization of water quality and obtain water required for compounding the grinding aid.
The processing parameters and the related mass percentages in the steps are as follows:
(1) purifying agent: 3-10% (percentage of water mass);
(2) ultrasonic frequency: 20-35 KHZ;
(3) thickening agent: 2-10% (percentage of water mass);
(4) the acoustic wave treatment time is as follows: 10min to 30 min;
second, grinding aid compounding process
Adding the water obtained in the first step into a container, adding industrial salt, stirring for 10min, and performing ultrasonic treatment to completely dissolve the salt. And sequentially adding alcohol amine substances and common industrial waste raw materials, stirring for 15min, and performing sound wave dispersion.
The mass percentages and related parameters of the components of the grinding aid are as follows:
(1) alcamines substance: 10% -20%;
(2) industrial salt: 8% -17%;
(3) industrial waste: 20 to 30 percent;
(4) water: 48% -60%;
(5) the acoustic wave treatment time is as follows: 10min to 30 min;
the purifying agent is one or two of ferrous sulfate, alum and polyaluminium chloride.
The sound wave is ultrasonic wave with frequency of 20-35 KHZ.
The high-activity adsorption substance is one or two of active carbon and silicon rubber.
The thickening agent is one or two of hydroxypropyl methyl cellulose ether, xanthan gum and sodium alginate.
The industrial salt is one or two of sodium chloride, sodium thiosulfate and potassium nitrate.
The alcamines are one or two of triethanolamine, triisopropanolamine, diethanolamine and diisopropanolamine.
The industrial waste is one or two of crude glycerol, resin alcohol, glyceride and sugarcane waste residue.
The invention provides a process for improving grinding aid homogenization, which has the following advantages:
(1) according to the invention, through the treatment of water in the compounding process of the grinding aid, the adsorption and complexation of colloid and ionic components in water to the effective components of the grinding aid are avoided, the effective components of the grinding aid are improved, the performance of the grinding aid is improved, and the grinding energy consumption is reduced.
(2) The process increases the viscosity of water, effectively improves the settling problem of the grinding aid, and obtains the grinding aid which is uniform and stable.
Detailed Description
In order to further embody the efficacy of the present invention, the present invention is further described in detail with reference to specific application cases.
Each part in the application examples represents parts by weight.
Example 1
3 parts of purifying agent, 20KHZ ultrasonic frequency, 2 parts of thickening agent, 10min ultrasonic time, 48 parts of treated water, 10 parts of alcohol amine substance, 8 parts of industrial salt and 20 parts of industrial waste, and grinding aid A1 is prepared according to the steps (1) and (2).
Example 2
5 parts of purifying agent, 25KHZ of ultrasonic frequency, 4 parts of thickening agent, 15min of ultrasonic time, 51 parts of treated water, 13 parts of alcohol amine substance, 10 parts of industrial salt and 22 parts of industrial waste, and grinding aid A2 is prepared according to the steps (1) and (2).
Example 3
6 parts of purifying agent, 28KHZ ultrasonic frequency, 6 parts of thickening agent, 20min ultrasonic time, 54 parts of treated water, 16 parts of alcohol amine substance, 12 parts of industrial salt and 24 parts of industrial waste, and grinding aid A3 is prepared according to the steps (1) and (2).
Example 4
8 parts of purifying agent, 30KHZ ultrasonic frequency, 8 parts of thickening agent, 25min ultrasonic time, 57 parts of treated water, 18 parts of alcohol amine substance, 14 parts of industrial salt and 27 parts of industrial waste, and grinding aid A4 is prepared according to the steps (1) and (2).
Example 5
10 parts of purifying agent, 35KHZ ultrasonic frequency, 10 parts of thickening agent, 30min ultrasonic time, 60 parts of treated water, 20 parts of alcohol amine substance, 17 parts of industrial salt and 30 parts of industrial waste, and grinding aid A5 is prepared according to the steps (1) and (2).
The 5 grinding aids obtained were used for comparison1, grinding according to the cement proportion shown in the specification. The chemical composition and mineral composition of the portland cement clinker are shown in table 2; the gypsum is natural dihydrate gypsum with crystal water content of 16.7%, and SO3The content was 41.8%. The portland cement clinker and gypsum are both obtained from beijing new north cement limited. Performing performance test on a cement sample, wherein the fineness is tested according to GB/T1345-2005 'Cement fineness detection method screening method'; the specific surface area is tested according to GB/T8074-2008 ' determination method of specific surface area of cement Bo's method '; the strength of cement mortar was measured according to method for testing the strength of cement mortar (ISO method) (GB/T17671-1999), and the test results are shown in Table 3.
TABLE 1 Cement ratio (%)
| Clinker | Gypsum plaster |
| 95 | 5 |
Table 2 chamotte chemical composition and mineral composition analysis (%)
| Loss | SiO2 | Al2O3 | Fe2O3 | CaO | MgO |
| 0.42 | 21.29 | 5.76 | 5.24 | 63.52 | 2.11 |
| f-CaO | SO3 | C3S | C2S | C3A | C4AF |
| 0.58 | 0.35 | 47.83 | 25.82 | 5.74 | 16.13 |
TABLE 3 Effect of the invention on Cement Properties
The effect of grinding aid formulated in this process on cement performance is shown in table 3. In examples 1, 2, 3, 4 and 5, the grinding aid is added in an amount of 0.03%, so that the strength of cement 3d and 28d is improved, and compared with the grinding aid obtained by compounding in the traditional process, the strength of the cement can be improved by 1-2.5 MPa under the same adding amount. And the grinding aid prepared by the method does not have the problem of flocculent precipitate after standing for 6 months. The process provides a favorable way for energy conservation and emission reduction in the cement industry and comprehensive utilization of industrial waste.
Claims (5)
1. A method for improving the homogeneity of a cement grinding aid is characterized by comprising a water treatment process and a grinding aid compounding process, and the specific implementation scheme is as follows:
the water treatment process comprises the following steps, related parameters and mass percentages of all substances:
firstly, adding a purifying agent;
processing with sound waves;
filtering: removing suspended matters and part of colloid in the water through gravity settling, reducing the turbidity of the water, and then filtering and adsorbing supernatant liquor through high-activity adsorbate to remove residual micro-particles; the high-activity adsorbate is one or two of active carbon and silicon rubber;
thickening water;
the processing parameters in each step are as follows:
(1) purifying agent: the addition amount accounts for 3% -10% of the water mass; the purifying agent is one or two of ferrous sulfate, alum and polyaluminium chloride;
(2) ultrasonic frequency: 20-35 KHz;
(3) thickening agent: the addition amount of the water-based paint accounts for 2-10% of the mass of water;
(4) the acoustic wave treatment time is as follows: 10 min-30 min;
(II) the grinding aid compounding process comprises the following steps of:
adding the water obtained in the process (I) into a container, adding industrial salt, stirring for 10min, and performing sound wave treatment to completely dissolve the salt; and then sequentially adding alcamines and common industrial waste, stirring for 15min, and performing sound wave dispersion, wherein the mass percentages and related parameters of the components of the grinding aid are as follows:
(1) alcamines substance: 10% -20%;
(2) industrial salt: 8% -17%;
(3) industrial waste: the mixing amount is 20% -30%; the industrial waste is one or two of crude glycerol, resin alcohol, glyceride and sugarcane waste residue;
(4) water: 48% -60%;
the sum of the mass fractions of the four components meets 100 percent;
(5) the acoustic wave treatment time is as follows: 10min to 30 min.
2. The method for improving the homogeneity of the cement grinding aid as claimed in claim 1, wherein the sound wave is ultrasonic wave with a frequency of 20-35 KHz.
3. The method for improving the homogeneity of the cement grinding aid as claimed in claim 1, wherein the thickening agent is one or two of hydroxypropyl methyl cellulose ether, xanthan gum and sodium alginate.
4. The method for improving the homogeneity of a cement grinding aid as claimed in claim 1, wherein the industrial salt is one or both of sodium chloride and sodium thiosulfate.
5. The method for improving the homogeneity of the cement grinding aid as claimed in claim 1, wherein the alkanolamine is one or two of triethanolamine, triisopropanolamine, diethanolamine and diisopropanolamine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710162447.2A CN108623205B (en) | 2017-03-18 | 2017-03-18 | Method for improving homogeneity of cement grinding aid |
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| CN201710162447.2A CN108623205B (en) | 2017-03-18 | 2017-03-18 | Method for improving homogeneity of cement grinding aid |
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| CN108623205A CN108623205A (en) | 2018-10-09 |
| CN108623205B true CN108623205B (en) | 2021-03-16 |
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Citations (6)
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|---|---|---|---|---|
| RU2012551C1 (en) * | 1992-01-04 | 1994-05-15 | Иван Васильевич Ситников | Method of preparing mixture for production of building materials |
| CN1605573A (en) * | 2003-10-07 | 2005-04-13 | 瓦特克瓦巴格有限责任公司 | Decomposition of sewage sludge after anaerobic digestion |
| JP2005288423A (en) * | 2004-03-31 | 2005-10-20 | Kazutoshi Igarashi | Adsorption base material for acetaldehyde, or the like, and chemical preparation base material |
| CN103641247A (en) * | 2013-12-27 | 2014-03-19 | 姚为 | Domestic sewage treatment agent and preparation method thereof |
| CN105439487A (en) * | 2015-12-16 | 2016-03-30 | 陈晖� | Reinforced type cement grinding aid |
| CN105503003A (en) * | 2016-01-04 | 2016-04-20 | 山东宏艺科技股份有限公司 | Cement grinding aid and preparation method thereof |
-
2017
- 2017-03-18 CN CN201710162447.2A patent/CN108623205B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2012551C1 (en) * | 1992-01-04 | 1994-05-15 | Иван Васильевич Ситников | Method of preparing mixture for production of building materials |
| CN1605573A (en) * | 2003-10-07 | 2005-04-13 | 瓦特克瓦巴格有限责任公司 | Decomposition of sewage sludge after anaerobic digestion |
| JP2005288423A (en) * | 2004-03-31 | 2005-10-20 | Kazutoshi Igarashi | Adsorption base material for acetaldehyde, or the like, and chemical preparation base material |
| CN103641247A (en) * | 2013-12-27 | 2014-03-19 | 姚为 | Domestic sewage treatment agent and preparation method thereof |
| CN105439487A (en) * | 2015-12-16 | 2016-03-30 | 陈晖� | Reinforced type cement grinding aid |
| CN105503003A (en) * | 2016-01-04 | 2016-04-20 | 山东宏艺科技股份有限公司 | Cement grinding aid and preparation method thereof |
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Effective date of registration: 20210219 Address after: Room 211, xinqiwang office building, No.5 Huahua Road, Chaoyang District, Beijing 100023 Applicant after: BEIJING FENGLEBAO TECHNOLOGY Co.,Ltd. Applicant after: Fenglebao chemical materials (Beijing) Co.,Ltd. Address before: Room 211, xinqiwang office building, No.5 Huahua Road, Chaoyang District, Beijing 100023 Applicant before: BEIJING FENGLEBAO TECHNOLOGY Co.,Ltd. |
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