Microcrystal foam glass prepared by kerosene shale ash and manufacturing method thereof

A technology of microcrystalline foam glass and oil shale ash, which is applied in the field of microcrystalline foam glass and its manufacturing, can solve the problem of low utilization rate of non-metallic minerals and achieve the effect of improving the environment

Inactive Publication Date: 2008-01-30
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above technical routes all use waste glass as the main raw material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Primary ingredients: ingredients by weight: oil shale ash 70%, calcium carbonate 15%, basic magnesium carbonate 5%, borax 6%, sodium carbonate 4%;

[0021] 2. High-temperature melting: After accurately weighing various raw materials, mix them uniformly in a ball mill, add them to a high-alumina crucible, and melt in a silicon-molybdenum rod resistance furnace at 1250°C for 90 minutes;

[0022] 3. Basic glass preparation: quickly pour the glass melt into tap water, quench the water into glass particles of 0.074-0.2mm, dry in a drying oven at 100°C for 30min; ball-mill the dried glass particles into particles with a particle size of less than 0.074mm powder;

[0023] 4. Secondary batching: batching by weight: set 100 parts of glass powder, add foaming agent calcium carbonate 2%, foam stabilizer sodium phosphate 4%, fluxing agent borax 3%;

[0024] 5. Foaming: After mixing the batch materials evenly in a ball mill, add them into a high-alumina crucible and put them int...

Embodiment 2

[0028] 1. Primary ingredients: ingredients by weight: oil shale ash 78%, calcium carbonate 10%, basic magnesium carbonate 3%, borax 5%, sodium carbonate 4%;

[0029] 2. High-temperature melting: After accurately weighing various raw materials, mix them uniformly in a ball mill, add them to a high-alumina crucible, and put them into an electric furnace to melt at 1250°C for 110 minutes;

[0030] 3. Preparation of basic glass: Pour the molten body into tap water quickly, quench it into glass particles with a size of 0.074-0.2mm, dry it in a drying oven at 100°C for 30 minutes, and ball-mill it into a glass powder with a particle size of less than 0.074mm;

[0031] 4. Secondary ingredients: ingredients by weight: set 100 parts of glass powder, add calcium carbonate 4%, sodium phosphate 6%, borax 4%;

[0032] 5. Foaming: Mix the batch materials evenly with a ball mill, add them into a high-alumina crucible, put them into a silicon-molybdenum rod resistance furnace, raise the tempe...

Embodiment 3

[0036] 1. Primary ingredients: ingredients by weight: oil shale ash 78%, calcium carbonate 10%, basic magnesium carbonate 3%, borax 4%, sodium carbonate 5%;

[0037] 2. High-temperature melting: After accurately weighing various raw materials, mix them evenly in a ball mill, add them into a high-alumina crucible and put them into an electric furnace, and melt them at 1250°C for 100 minutes;

[0038] 3. Basic glass preparation: quickly pour the glass melt into tap water, water-quench into glass particles of 0.074-0.2 mm, dry in a drying oven at 100°C for 30 minutes; ball-mill the dried water-quenched glass particles into a particle size of less than 0.074 mm of glass powder;

[0039] 4. Secondary batching: batching by weight: set 100 parts of glass powder, add 3% of corresponding foaming agent calcium carbonate, 3% of foam stabilizer sodium phosphate, and 5% of fluxing agent borax.

[0040] 5. Foaming: After uniformly mixing the batch materials with a ball mill, add them to a ...

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Abstract

The invention relates to a microcrystalline foam glass made by oil shale ash and a preparation method thereof. The oil shale ash is used as main material. The basic glass is made by adding a certain quantity of calcium carbonate, basic magnesium carbonate, borax and sodium carbonate to the main material, then adding foaming agent, foam stabilizer, fluxing agent. By adopting powder firing technique, the microcrystalline foam glass is made. The surface volume consistency of the glass is 875-1030 kg.m-3; absorbing capability is 8-15 percent; compressive strength is 11-23 MPa; bending strength is 10-17MPa; and heat conductive coefficient is 0.21- 0.32w(m.k)-1.The producing steps comprise the following techniques that first-time material proportioning; high temperature melting; basic glass making; second-time material proportioning; foaming; foam stabilizing; annealing, etc. The microcrystalline foam glass is a novel multi-functional material, which has remarkable meaning on improvement of the added value of oil shale rock resources and on environment protection.

Description

technical field [0001] The invention relates to a microcrystalline foam glass prepared from oil shale ash as a main raw material and a manufacturing method thereof. Background technique [0002] Microcrystalline foam glass is a new type of multifunctional material. Mainly used for (1) load-bearing walls of buildings; (2) cryogenic pipes, equipment, containers and storage tanks; (3) hot oil and hot asphalt storage tanks; (4) petrochemical and vulcanization production processes; (5) fluid Heat exchange system; (6) Sound insulation and sound-absorbing walls of compressors and fan rooms, etc. [0003] Microcrystalline foam glass is a kind of waste glass, fly ash, non-metallic ore, etc. as the main raw materials, adding foaming agent, nucleating agent and admixture, etc. It is a new type of porous glass-ceramic material made by heating in an electric furnace in a mold, and undergoing processes such as preheating, sintering, foaming, foam stabilization and annealing. [0004] B...

Claims

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Application Information

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IPC IPC(8): C03C10/00C03C11/00C03C6/04
Inventor 薛向欣冯宗玉李勇杨合
Owner NORTHEASTERN UNIV
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