Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of light sand

A technology of light sand and light raw materials, applied in the field of building materials, can solve the problems of low strength of light sand, increase energy consumption and cost of light sand, and achieve the effect of improving activity

Active Publication Date: 2022-06-28
长沙市神宇建材有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw materials of light sand are usually fly ash, coal slag, waste building materials and ceramsite; however, due to the low strength of light sand, it is usually necessary to add high-grade cement in the prior art, or to make up for the above by means of secondary calcination. shortcoming
[0003] Although the addition of high-grade cement or secondary calcination can make up for the shortcomings of the poor quality of light sand itself to a certain extent, it also increases the energy consumption and cost of preparing light sand

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
  • Preparation method of light sand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] This embodiment prepares a kind of light sand, and the specific process includes the following steps:

[0064] 1. Crushing the dried light raw materials, wherein the light raw materials are cinders, and the crushing is carried out by a roller machine;

[0065] 2. The material obtained in step 1 is classified to obtain large particles and small particles, wherein the large particle size range is 2.5~3mm, and the small particle size is less than 2.5mm. This step is carried out by an air classifier. Then repeat the crushing of the rollers in step 1;

[0066] 3. The small particles obtained in step 2 are ground with the aid of a grinding aid to obtain an active powder, wherein the addition of the grinding aid is 0.2% of the quality of the small particles; by weight, the grinding aid includes 8 parts of triacetate alcohol, 14 parts of gypsum, 20 parts of coco-acid-modified triisopropanolamine and 8 parts of water; the grinding time is 30min;

[0067] 4. mixing step 3 gaine...

Embodiment 2

[0073] This embodiment prepares a kind of light sand, and the specific difference from embodiment 1 is:

[0074] In step 1, the light raw material includes 75 parts by weight of coal slag and 10 parts by weight of water slag.

Embodiment 3

[0076] This embodiment prepares a kind of light sand, and the difference between the specific process and embodiment 1 is:

[0077] In step 1, the light raw materials include 75 parts by weight of coal slag, 10 parts by weight of water slag, 10 parts by weight of vermiculite and 5 parts by weight of air-entrained bricks.

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
bulk densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing lightweight sand, which belongs to the technical field of building materials. The preparation method of light sand comprises the following steps: S1. crushing the light raw material after drying; S2. classifying the material obtained in step S1 to obtain large particles and small particles; S3. putting the small particles in the grinding aid Grinding with the assistance of the active powder to obtain the active powder; S4. Mixing the active powder with cement to obtain the cladding material, wrapping the large particles with the cladding material to obtain a semi-finished product; S5. Conserving the semi-finished product to obtain light sand; grinding aids include Coco-modified triisopropanolamine, glycerol and gypsum. The light sand of the invention can obtain the light sand with higher strength on the basis of no burning, and fully utilizes the construction waste, so it has the double advantages of environmental protection and economy.

Description

technical field [0001] The invention belongs to the technical field of building materials, and particularly relates to a preparation method of lightweight sand. Background technique [0002] Lightweight mortar is a kind of cement-based lightweight fireproof and thermal insulation mortar that can effectively thermally and thermally treat buildings. The product has the advantages of non-combustibility, porous, and extremely low thermal conductivity. It has been widely used in thermal insulation materials and fireproof materials. One of the important components in lightweight mortar is lightweight aggregate, also known as lightweight sand. The raw materials of light sand are usually fly ash, cinder, waste building materials and ceramsite; however, due to the low strength of light sand, high-grade cement is usually added in the prior art, or secondary calcination is used to make up for the above. shortcoming. [0003] Although the addition of high-grade cement or secondary cal...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C04B20/10C04B20/02C04B14/20C04B18/06C04B18/14C04B18/16
CPCC04B20/1077C04B18/06C04B18/141C04B14/202C04B18/16C04B20/026Y02W30/91
Inventor 吴建军
Owner 长沙市神宇建材有限公司