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

Wet-process carbide slag calcining ultrafine calcium oxide powder for recycling calcium carbide briquette and preparation method thereof

A technology of calcium carbide slag and calcium oxide, which is applied in the field of ultra-fine powder pressing balls, can solve the problems of agglomeration without strength, balls without agglomeration, and balls without balls, and achieve the effect of simple process and realization of recycling and reuse

Active Publication Date: 2022-07-22
新疆中泰创安环境科技股份有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The ultra-fine calcium oxide powder produced after calcium carbide slag calcination has finer powder and lighter bulk density. When the ball is pressed through the ball press machine, there will be problems such as not forming balls, or forming balls without agglomeration, and agglomeration without strength. , the existing briquetting machine has a line pressure ratio of 1t / mm to 2t / mm, and the balling effect of the above-mentioned powder is poor, and the obtained balls cannot meet the recycling of calcium carbide

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
  • Wet-process carbide slag calcining ultrafine calcium oxide powder for recycling calcium carbide briquette and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: The preparation method of this wet-process carbide slag calcined ultra-fine calcium oxide powder for recycling calcium carbide briquette, according to the following steps: the first step is to calcine the ultra-fine calcium oxide powder of the required amount of carbide slag In the second step, the fiber mixture and the lime sieve powder are stirred and mixed by a biaxial mixer to obtain a coarse and fine mixture, wherein, in the coarse and fine mixture, the coarse material is mixed The weight percentage of the amount is 10% to 30%; in the third step, under the condition that the line pressure ratio is 0.5t / mm to 0.8t / mm, the coarse and fine mixture is sent to the pre-pressing machine for initial pre-pressing, and the particle size is obtained. The particle size is 3mm to 10mm; in the fourth step, the particle size is distributed to a briquetting machine with a linear pressure ratio of 1t / mm to 2t / mm for briquetting to obtain wet-process carbide slag calcin...

Embodiment 2

[0023] Embodiment 2: As an optimization of the above embodiment, in the first step, the weight ratio of the binder to the ultrafine calcium oxide powder is 1:1000 to 2000.

Embodiment 3

[0024] Embodiment 3: As an optimization of the above embodiment, the binder is a polysaccharide substance or an organic-inorganic fiber.

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
densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of ultra-fine powder briquette, and relates to a wet-process carbide slag calcined ultra-fine calcium oxide powder for recycling calcium oxide briquette and a preparation method thereof. The binder is mixed to obtain a fiber mixture, which is mixed with the lime sieve powder through a double-shaft mixer to obtain a coarse and fine mixture, which is sent to the pre-press under the condition that the online pressure ratio is 0.5t / mm to 0.8t / mm. Carry out preliminary pre-pressing to obtain particle size distribution of 3mm to 10mm, and distribute the particle size to a briquetting machine with a linear pressure ratio of 1t / mm to 2t / mm for briquetting to obtain a product. The preparation method of the invention has simple and convenient process, can obtain pelletized particles with a size of 20 mm to 70 mm without changing the working conditions of the existing briquetting machine, and the cold state experimental strength can reach 900 N to 1300 N, which fully meets the requirements of recycled calcium carbide. The crushing ball strength is high, and the recycling and reuse of carbide slag can be realized.

Description

technical field [0001] The invention relates to the technical field of ultra-fine powder briquette, and relates to a calcium oxide slag calcined ultra-fine calcium oxide powder recycled carbide briquette and a preparation method thereof. Background technique [0002] The ultrafine calcium oxide powder produced by the calcination of calcium carbide slag has fine powder and light bulk density. When briquetting through the briquetting machine, there are problems such as failure to form a ball, or the ball does not agglomerate, and the agglomeration has no strength. , the linear pressure ratio of the existing ball briquetting machine is 1t / mm to 2t / mm, the balling effect of the above-mentioned powder is poor, and the obtained balling cannot meet the calcium carbide reuse. SUMMARY OF THE INVENTION [0003] The invention provides calcium carbide briquette balls for calcining ultrafine calcium oxide powders by wet method and a preparation method thereof, which overcomes the above...

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): C04B2/10
CPCC04B2/005C04B2/10
Inventor 樊庆霈韩巍但建明
Owner 新疆中泰创安环境科技股份有限公司