Polymer grinding aid for cement and preparation method of grinding aid
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A cement grinding aid and polymer technology are applied in the field of polymer cement grinding aid and its preparation to achieve the effects of increasing output, improving grinding aid efficiency, and being non-radioactive.
Inactive Publication Date: 2019-09-10
NANJING YONGNENG MATERIALS
View PDF5 Cites 3 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
But according to its fixed structure, it also has its own disadvantages
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0020] A kind of polymer cement grinding aid, its raw material is composed of: Tetrahydroxyethylethylenediamine 4%, dispersant 0.5%, crude glycerin 15%, sugar 3%, sodium thiosulfate 7%, polyvinyl alcohol 0.3% , tetrahydroxypropyl ethylenediamine 3%, the balance is water, the total amount is 100%;
[0021] The percentages are mass percentages, according to the formula ratio, tetrahydroxyethylethylenediamine, dispersant, crude glycerin, sugar, sodium thiosulfate, polyvinyl alcohol and tetrahydroxypropylethylenediamine are dissolved in water, mixed Uniform, that is, product 1.
Embodiment 2
[0023] A kind of polymer cement grinding aid, its raw material is composed of: Tetrahydroxyethylethylenediamine 9%, dispersant 0.8%, crude glycerin 27%, sugar 10%, sodium thiosulfate 15%, polyvinyl alcohol 0.5% , Tetrahydroxypropylethylenediamine 8%, the balance is water, the total amount is 100%;
[0024] The percentages are all mass percentages. According to the formula ratio, dissolve tetrahydroxyethylethylenediamine, dispersant, crude glycerin, sugar, sodium thiosulfate, polyvinyl alcohol and tetrahydroxypropylethylenediamine in water, and mix well , namely, product 2.
Embodiment 3
[0026] A kind of polymer cement grinding aid, its raw material is composed of: Tetrahydroxyethylethylenediamine 7%, dispersant 0.7%, crude glycerin 21%, sugar 6%, sodium thiosulfate 13%, polyvinyl alcohol 0.4% , tetrahydroxypropyl ethylenediamine 5%, the balance is water, the total amount is 100%;
[0027] The percentages are all mass percentages. According to the formula ratio, dissolve tetrahydroxyethylethylenediamine, dispersant, crude glycerin, sugar, sodium thiosulfate, polyvinyl alcohol and tetrahydroxypropylethylenediamine in water, and mix well , namely, product 3.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a polymer grinding aid for cement and a preparation method of the grinding aid. The grinding aid for the cement is prepared from the following raw materials, in percentages bymass: 4-9% of tetrahydroxyethyl ethylenediamine, 0.5-0.8% of a dispersing agent, 15-27% of crude glycerin, 3-10% of sugar, 7-15% of sodium thiosulfate, 0.3-0.5% of polyvinyl alcohol, 3-8% of tetrahydroxypropyl ethylenediamine, and the balance of water, wherein a sum is 100%. According to the grinding aid provided by the invention, the tetrahydroxyethyl ethylenediamine and the tetrahydroxypropyl ethylenediamine are used to replace triethanolamine and triisopropanolamine, the high-dispersion polycarboxylate and/or fatty alcohol polyoxyethylene ether dispersant is used, firstly cement particles can be highly dispersed, and through dispersion permeation, electrical charges carried by the cement particles are neutralized to reduce agglomeration; and the grinding aid has good chemical stability,does not contain halogen ions capable of corroding equipment, significantly improves grinding efficiency and early and late strength of the cement, and can significantly reduce energy consumption ofproduction of the cement by 20-30% in the presence of the tetrahydroxyethyl ethylenediamine and the tetrahydroxypropyl ethylenediamine.
Description
technical field [0001] The invention belongs to the technical field of cement production, in particular to a polymer cement grinding aid and a preparation method thereof. Background technique [0002] Cement grinding is the process link with the highest energy consumption in the cement production process. During the grinding process, it often causes problems such as a decrease in cement powder selection efficiency and a decrease in grinding efficiency. Cement grinding aid is a chemical additive to improve the grinding effect and performance of cement, which can significantly increase the output of cement table, the strength of cement of all ages, and improve its fluidity. Cement grinding aids can greatly reduce the phenomenon of electrostatic adsorption and encapsulation formed in the grinding process, and can reduce the re-agglomeration tendency of ultrafine particles formed in the grinding process. Cement grinding aids can also significantly improve the fluidity of cement...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more