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Method for increasing effective thermal conductivity coefficient of float glass batch

A float glass and thermal conductivity technology, applied in glass production and other directions, can solve the problems of low melting efficiency of radiation heat exchange surface, affecting the increase of glass liquid temperature, and ineffective heat transfer, so as to promote circulation and increase heating rate. , the effect of improving the bulk density

Inactive Publication Date: 2015-05-13
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The melting of the float glass batch is affected by the joint heat transfer of the flame above the melting furnace and the high-temperature molten glass below. The thermal conductivity of the batch affects the heating rate of the material layer and the melting efficiency. The melting of the batch and the flow of the glass jointly push the glass Melting process: The melting efficiency of the radiation heat exchange surface between the upper layer of the batch material and the space is very low, because the batch material layer floats on the glass liquid, the thermal conductivity of the batch material is small, and the heat cannot be effectively absorbed, and a large amount of heat energy in the flame space cannot be effectively It is transmitted to the batch material, which also affects the increase of the glass liquid temperature in a large area

Method used

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  • Method for increasing effective thermal conductivity coefficient of float glass batch

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The method for improving the thermal conductivity of the batch of float glass comprises the steps of:

[0024] 1) Put 200g of dried silica sand into a 1L grinding tank of a single-head ball mill, set the design speed at 450rmp, and set the grinding time at 1h to grind the silica sand to control the geometric shape and particle size of the silica sand particles ;

[0025] 2) Clean and dry the ground silica sand granules, then select a 160-mesh standard sieve to sieve the dedusted silica sand, and then use a 200-mesh standard sieve to remove the silica sand with a smaller particle size to ensure the uniformity of the silica sand particle size sex and continuity;

[0026] 3) According to the production scale, product variety and quality requirements of float glass, design the composition of float glass batch materials, and accurately weigh the homogenized and dust-removed silica sand and other raw materials;

[0027] 4) Pour the accurately weighed raw materials into the ...

Embodiment 2

[0030] The method for improving the thermal conductivity of the batch of float glass comprises the steps of:

[0031] 1) Put 200g of dried silica sand into a 1L grinding tank of a single-head ball mill, set the design speed at 450rmp, and set the grinding time at 2h to grind the silica sand to control the geometric shape and particle size of the silica sand particles ;

[0032] 2) Clean and dry the ground silica sand granules, then select a 200-mesh standard sieve to sieve the dedusted silica sand, and then use a 230-mesh standard sieve to remove the silica sand with a smaller particle size to ensure the uniformity of the silica sand particle size sex and continuity;

[0033] 3) According to the production scale, product variety and quality requirements of float glass, design the composition of float glass batch materials, and accurately weigh the homogenized and dust-removed silica sand and other raw materials;

[0034] 4) Pour the accurately weighed raw materials into the ...

Embodiment 3

[0037] The method for improving the thermal conductivity of the batch of float glass comprises the steps of:

[0038] 1) Put 200g of dried silica sand into a 1L grinding tank of a single-head ball mill, set the design speed at 450rmp, and set the grinding time at 3h, and grind the silica sand to control the geometric shape and particle size of the silica sand particles ;

[0039] 2) Clean and dry the ground silica sand granules, then select a 400-mesh standard sieve to sieve the dedusted silica sand, and then use a 460-mesh standard sieve to remove the silica sand with a smaller particle size to ensure the uniformity of the silica sand particle size sex and continuity;

[0040] 3) According to the production scale, product variety and quality requirements of float glass, design the composition of float glass batch materials, and accurately weigh the homogenized and dust-removed silica sand and other raw materials;

[0041] 4) Pour the accurately weighed raw materials into th...

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Abstract

The invention provides a method for increasing the effective thermal conductivity coefficient of a float glass batch. At present, drying, grinding, dust removal and screening treatment are performed on a main float glass raw material, namely, silica sand, the content of components of the batch is calculated according to the float glass raw material design, the components are accurately weighed, then the batch is evenly mixed by a mixer, the bulk density of the batch is adjusted, the fractal dimension of bulk solids of the batch is optimized, the difference between the pore size in the heat conducting direction and the characteristic pore size is improved, and then the effective thermal conductivity coefficient of the batch is increased. With the adoption of the method, the effective thermal conductivity coefficient of the float glass batch can be increased, the heating rate for melting of the batch can be increased, the float glass melting efficiency can be increased, and energy is saved.

Description

technical field [0001] The invention belongs to the technical field of float glass, in particular to a method for improving the effective thermal conductivity of float glass batch materials. Background technique [0002] The melting of the float glass batch is affected by the joint heat transfer of the flame above the furnace and the high-temperature molten glass below. The thermal conductivity of the batch affects the heating rate of the material layer and the melting efficiency. The melting of the batch and the flow of the glass jointly push the glass Melting process: the melting efficiency of the radiation heat exchange surface between the upper layer of the batch material and the space is very low, because the batch material layer floats on the glass liquid, the thermal conductivity of the batch material is small, and heat cannot be effectively absorbed, and a large amount of heat energy in the flame space cannot be effectively The transfer to the batch material also aff...

Claims

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Application Information

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IPC IPC(8): C03B1/00
CPCC03B1/00Y02P40/50
Inventor 胡开文韩建军谢俊吕鑫刘超赵修建
Owner WUHAN UNIV OF TECH
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