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Cement retarding ball manufacturing method

A manufacturing method and a technology of slow-setting balls, which are applied in the field of cement slow-setting balls by disc method, can solve problems such as difficult industrialization, large floor space, and complicated processes, and achieve convenient large-scale production, improved ball strength, and accelerated cementation The effect of the reaction

Inactive Publication Date: 2010-07-07
TONGLING CHEM IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent has high energy consumption, so CN1389421A improved CN1389420A, that is, eliminated the calcination process, but because the newly pressed molded bricks have no strength, the phosphogypsum bricks must be placed lightly in an orderly manner by manual or mechanical hands, just like the sintered brick factory. Stacking, under a certain ambient temperature, after a long time of reaction, the bricks can have a certain strength, and only at this time can they meet the requirements of crushing, loading and unloading, and transportation. It can be seen that the process is complicated, and it occupies a large area and requires a lot of labor. Realize industrialization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Take 9400 parts of industrial phosphogypsum, 400 parts of lime, and 500 parts of superfine slag from iron and steel plants. After crushing and mixing, all of them are added to the disc granulator, rolling continuously, and spraying water at the same time to make gypsum with a diameter of 10-30 mm. Balls, the average compressive strength of finished gypsum balls after 12 days is 62.9 Newtons / piece.

Embodiment 2

[0018] Get 8,900 parts of industrial citric acid gypsum, 600 parts of lime, and 200 parts of superfine slag from a steel plant. The amount added accounts for 0.3% of the total amount of materials), and gypsum balls with a diameter of 10 to 30 mm are made into gypsum balls. After 8 days, the average compressive strength of the finished gypsum balls is 84.8 Newton / piece.

Embodiment 3

[0020] Take 8900 parts of industrial desulfurization gypsum, 400 parts of lime, and 400 parts of superfine slag from iron and steel mills. 0.1% of the total amount of material), made into gypsum balls with a diameter of 10-30 mm, and the average compressive strength of the finished gypsum balls after 10 days was 93.2 Newton / piece.

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Abstract

The invention discloses a cement retarding ball manufacturing method, in particular to a method of adapting a disc granulator to produce cement retarding balls taking certain quantity of lime, ultrafine slag in steel works and chemical gypsum which are crushed and mixed evenly as raw materials. The invention is characterized in that the disc balling and belt conveying facilitate stacking and scale production, and the strength of the retarding ball can meet the loading-unloading, transportation and operation requirements.

Description

technical field [0001] The invention relates to a method for manufacturing cement retarding balls, in particular to a method for preparing cement retarding balls by disc method using lime, superfine slag from a steel plant and chemical gypsum as raw materials. Background technique [0002] As we all know, due to the increasingly tight resources of natural gypsum, and the composition of chemical gypsum is similar to natural gypsum, factories have used chemical gypsum instead of natural gypsum to produce cement retarding balls, gypsum building materials, etc. In this way, the production cost is reduced, the environmental pollution problem of chemical gypsum residue is effectively controlled, and the comprehensive utilization technology of chemical gypsum is rapidly developed. [0003] CN1389420A is to combine 80~90wt% phosphogypsum, 2~15wt% adhesion enhancer (clay, fly ash, cinder, steel slag, blast furnace slag or other industrial waste), 3~10wt% activity stimulating agent (l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/42
Inventor 叶丽君杨文斌鲁军胡成军施晰昕
Owner TONGLING CHEM IND GRP
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