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Preparation method of high-performance environment-friendly pumice stone

An environmentally friendly pumice, high-performance technology, applied in the field of preparation of high-performance environmentally friendly pumice, can solve the problems of unstable quality, low product quality, and high energy consumption, improve production efficiency, reduce production costs and energy consumption, and improve production efficiency. The effect of product quality and performance

Inactive Publication Date: 2017-12-01
胡斯友
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current method of producing environmentally friendly pumice in China is to use intermittent small-scale kilns or test kilns, and to use the mold box foaming method for production. There have always been problems such as low product quality, low output, unstable quality, and high energy consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0021] First crush 87kg of cullet to make powder into a particle size of 280 mesh, then put 5kg of dolomite powder, 4kg of calcite powder, 3kg of sodium silicate, and 1kg of alumina into the mixer for full mixing; the prepared mixture Send it into the mesh belt kiln for preheating at 320°C, then rapidly heat up at 450-730°C, foam and stabilize at 870°C, and finally cool out of the kiln; coarsely crush the cooled foam and press Particle size sorting packaging.

specific Embodiment 2

[0022] First crush 90kg of cullet to make powder into a particle size of 300 mesh, then put 4kg of dolomite powder, 3kg of calcite powder, 2.5kg of sodium silicate, and 0.5kg of alumina into the mixer for full mixing; The mixture is fed into the mesh belt kiln for preheating at 350°C, then rapidly heated at 400-690°C, foamed and stabilized at 840°C, and finally cooled out of the kiln; the cooled foam is coarsely crushed Finally, sort and pack according to particle size.

[0023] Utilize the preparation method of the present invention to carry out embodiment 1 and embodiment 2, the environment-friendly pumice produced is through sampling detection, and its water absorption rate, compressive strength, thermal conductivity, bulk density all reach the international most advanced product standard requirement, and this method prepares also The tool has high production efficiency and low production cost, and has wide popularization and use value.

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PUM

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Abstract

The invention discloses a preparation method of high-performance environment-friendly pumice stone and solves the problems of low grade and yield, instable quality and high energy consumption of a product in the prior art. The preparation method includes the steps of: 1) crushing and pulverizing broken glass into powder being 250-300 meshes in granular size, and adding dolomite powder, calcite powder, sodium silicate and alumina into a mixing machine for complete mixing; 2) preheating the blended mixture in a kiln at 300-350 DEG C, performing rapid temperature increasing at 400-750 DEG C and foaming and stabilizing the mixture at 850-900 DEG C; 3) finally cooling the mixture and discharging the mixture from the kiln; 4) coarsely crushing the cooled foam body, and sorting and packaging the crushed product according to granularity. The method employs a mesh-belt-type kiln for foaming and cooling, so that production efficiency is increased and production cost is reduced. The environment-friendly pumice stone is high in water absorption efficiency and strength, is low in density and heat conductivity, and has great promotion and application value.

Description

technical field [0001] The invention belongs to the field of new environment-friendly materials, and in particular relates to a preparation method of high-performance environment-friendly pumice. Background technique [0002] Environmental protection has become the theme of the world's development. The production of high-performance environmentally friendly pumice will have a positive effect on the rationalization of the industrial structure in two senses. First, the recycling of cullet itself is a major improvement to the traditional industrial structure of "high consumption and high emission"; second, the products produced are still a new type of environmentally friendly materials. The environmentally friendly pumice has the characteristics of light weight, water purification, water permeability, water retention, heat insulation, ventilation, fire prevention, no pollution, good chemical stability and low thermal expansion. Environmentally friendly pumice is not only a soi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/02C03C11/00
Inventor 胡斯友
Owner 胡斯友