Method for preparing rock wool panel by melting solid waste

A technology of solid waste and rock wool board, applied in glass manufacturing equipment, manufacturing tools, etc., can solve the problems of increased operating costs, low rock wool output, high energy consumption, etc., and achieve good economic and social benefits

Inactive Publication Date: 2010-06-02
深圳德润环保投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process can only be used with SiO 2 Low basalt or diabase ore, rock wool yield is low, energy consumption is high, in addition, this is also limited by the basalt or diabase mineral resource reserves, which increases the operating cost

Method used

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  • Method for preparing rock wool panel by melting solid waste
  • Method for preparing rock wool panel by melting solid waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The domestic garbage in a garbage disposal site is measured to have a moisture content of 35% after pretreatment such as sorting, crushing, and drying. Take 1000Kg of domestic garbage with a moisture content of 35%, and add 80Kg of additive 1 # and 95Kg additive 2 # , fully mixed evenly, and then adopt the rock wool production process of the present invention to produce rock wool boards. The temperature of the rotary kiln is controlled at 1500°C, the acidity coefficient of the melt is about 1.45, and the fluctuation range of the chemical composition is small. The produced rock wool board is found to meet the strength requirements of ordinary rock wool boards such as compressive strength and tensile strength through the test of mechanical properties; the rock wool board is broken into debris with a particle size of less than 5mm, and the hazardous waste leaching toxicity is identified. It is found that its heavy metal content is also far below the limit value of "Leach...

Embodiment 2

[0038] After the sludge of a municipal sewage treatment plant is dried and pretreated, its moisture content is measured to be 50%, and the sludge with a moisture content of 50% is 1000Kg, and 60Kg of additives are added 1 # and 65Kg additive 2 # , fully mixed evenly, and then adopt the rock wool production process of the present invention to produce rock wool boards. The temperature of the rotary kiln is controlled at 1450°C, the acidity coefficient of the melt is about 1.6, and the fluctuation range of the chemical composition is small. The produced rock wool board is found to meet the strength requirements of ordinary rock wool boards such as compression and tensile strength through the test of mechanical properties. The rock wool board was crushed into slag with a particle size of less than 5mm, and the heavy metal content was found to be far lower than the limit value of "Leach Toxicity Identification of Hazardous Waste Identification Standards" (GB 5085.3-1996) after the...

Embodiment 3

[0040] The decontamination sludge of a certain river course removes coarse stones, etc. After drying and pretreatment, its moisture content is measured to be 45%. Take 1000Kg of silt with a moisture content of 45%, and add 4.5Kg of additive 1 # and 4.6Kg Additive 2 # , fully mixed evenly, and then adopt the rock wool production process of the present invention to produce rock wool boards. The temperature of the rotary kiln is controlled at 1530°C, the acidity coefficient of the melt is about 1.7 and the fluctuation range of the chemical composition is small. The produced rock wool board is found to meet the strength requirements of ordinary rock wool boards such as compression and tensile strength through the test of mechanical properties. The rock wool board was crushed into slag with a particle size of less than 5mm, and the heavy metal content was found to be far lower than the limit value of "Leach Toxicity Identification of Hazardous Waste Identification Standards" (GB ...

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PUM

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Abstract

The invention relates to a method for preparing a rock wool panel by melting solid waste, comprising: by adding No.1 additive and No.2 additive, adjusting the acidity coefficient of solid waste melting material to be 1.4-1.8; under the condition of meeting the formulation of the rock wool panel, fully melting and evenly mixing the solid waste in a rotary kiln at the temperature of 1450-1530 DEG C and under the condition of rotating oxygen; and then, forming rock wool fiber by treating a melted body by thread throwing through a four-roller centrifugal machine, and preparing the qualified rock wool panel product. By adopting the method, the production power consumption and the cost of the rock wool panel product can be greatly reduced, and reclamation, reduction and hazard-free treatment of the solid waste are realized to the utmost extent.

Description

technical field [0001] The invention relates to a method for preparing a rock wool board by melting solid waste, which belongs to the technical field of environmental protection and production of thermal insulation material rock wool, and is especially suitable for harmless treatment and resource utilization of solid waste. Background technique [0002] Rock wool and its products are lightweight thermal insulation and energy-saving materials, which not only have excellent heat insulation and sound insulation properties, but also have good chemical stability, heat resistance and flame retardancy. Therefore, it is made into plate, granular and tubular products and widely used in petroleum, chemical, steel, textile, thermoelectric, transportation, construction and other fields as thermal insulation materials. Rock wool is an inorganic fiber made from natural rocks such as basalt, diabase, dolomite, iron ore, bauxite, etc., which are melted and fiberized at high temperature. It...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/00C03C13/06C04B26/00C04B28/00C04B14/38
Inventor 王治军刘梦奇周岗泉
Owner 深圳德润环保投资有限公司
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