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Method and system for producing rock wool by comprehensively utilizing solid wastes

A technology for rock wool and waste residue, which is applied in the field of comprehensive utilization of solid waste to produce rock wool, can solve the problems of low added value of recycled products, and achieve the effects of satisfying the heat demand of steam curing, realizing the repeated recycling of waste, and improving product quality.

Active Publication Date: 2015-06-10
TAISHI ROCK WOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process solves the problem of rock wool waste slag and waste cotton treatment to a certain extent, but it is impossible to realize large-scale production due to the limitation of the production capacity of rock wool enterprises. The added value of recycled products is low

Method used

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  • Method and system for producing rock wool by comprehensively utilizing solid wastes
  • Method and system for producing rock wool by comprehensively utilizing solid wastes
  • Method and system for producing rock wool by comprehensively utilizing solid wastes

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Product specifications: acidity coefficient 1.8, bulk density 160kg / m3, (length, width, thickness) 1200×600×50mm.

[0040] The rolled and crushed rock wool waste residue, waste cotton and coal gangue aggregates are sent to the material bin, mixed with cement according to the mass ratio of 65:25:10 through the precise metering system, added an appropriate amount of water, stirred evenly, and injected into the mold. It is pressurized, sent to an oxygen steaming kiln, and steamed in an oxygen steaming kiln at 80°C for 12 hours, and then sent out of the kiln to a rock wool production silo for standby.

[0041] Smelting waste slag and rock wool waste slag blocks are sent to the silo for rock wool production, and the smelting waste slag and waste slag blocks with a mass ratio of 26:74 are transported to the cupola through the metering and conveying system through a belt, and evenly distributed into the furnace by a rotary distributor Inside, the raw material is melted at a hi...

Embodiment 2

[0045] Product specifications: acidity coefficient 1.6, bulk density 100kg / m3, (length, width, thickness) 1200×600×100mm.

[0046] The rolled and crushed rock wool waste residue, waste cotton and coal gangue aggregates are sent to the material bin, mixed with cement according to the mass ratio of 50:35:15 through the precise metering system, added an appropriate amount of water, stirred evenly, and injected into the mold. It is pressurized, sent to an oxygen steaming kiln, and steamed in an oxygen steaming kiln at 80°C for 8 hours, and then sent out of the kiln to a rock wool production silo for standby.

[0047] Smelting waste slag and rock wool waste slag blocks are sent to the silo for rock wool production, and through the metering and conveying system, the smelting waste slag and waste slag blocks with a mass ratio of 38:62 are transported to the cupola through a belt, and evenly distributed into the furnace by a rotary distributor Inside, the raw material is melted at a h...

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Abstract

The invention discloses a method and system for producing rock wool by comprehensively utilizing solid wastes. The method comprises the following steps: a) uniformly mixing rock wool waste residue, coal gangue and cement in a mass ratio of (50-70):(20-35):(10-20) to prepare an autoclaved waste residue block; b) uniformly mixing the autoclaved waste residue block and smelting waste residue in a mass ratio of (60-80):(20-40) to obtain a mixture; c) melting the mixture at high temperature, and centrifuging at high speed for fiber formation, thereby obtaining fibers; and d) spraying an adhesive, a water repellent and a coupling agent on the fibers, and carrying out wool accumulation, solidification and cutting to obtain the rock wool plate. The method has the advantages of simple technological equipment, low energy consumption and recoverable heat source, is convenient to operate, comprehensively utilizes the solid wastes instead of the traditional basalt and dolomite to produce the rock wool product, and thoroughly solves the problem of solid wastes in the rock wool enterprise.

Description

technical field [0001] The invention belongs to rock wool production technology, and especially designs a method and system for comprehensively utilizing solid waste to produce rock wool. Background technique [0002] In recent years, the large demand in the market has driven the rapid expansion of the rock mineral wool market. The domestic market demand for rock and mineral wool has been showing a trend of rapid development. According to the "Twelfth Five-Year Plan for Thermal Insulation and Energy-saving Materials Industry", by 2015, the demand for rock and mineral wool in my country will reach 6.5 million tons. If basalt and dolomite are still used as the main raw materials for production, at least 7 million tons of basalt and dolomite are needed tons, which will cause a large consumption of our country's natural resources, which is not in line with the national sustainable development strategy. In addition, while the output has increased sharply, the relevant supporting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/005
CPCY02P40/57
Inventor 彭文龙马文波高钦磊王振
Owner TAISHI ROCK WOOL
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