On-line hot preparation method of glass batch

A glass batching material and batching technology, which is applied in glass manufacturing equipment, glass production, manufacturing tools, etc., can solve the problem of insignificant energy saving effect, and achieve the effects of avoiding heat loss, reducing flying damage and saving mineral resources.

Inactive Publication Date: 2010-12-15
杭州蓝星新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, CN101318762 proposes batch material granulation preheating technology, powdery batch material is made into spherical granulated material, and the batch material of preheating granulation is carried out by utilizing the residual heat of flue gas, but the energy-saving effect is not obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] On a float glass production line with a daily melting capacity of 450 tons, according to the amount of molten glass per ton, weigh 730 kg of quartz sand, 30 kg of feldspar, 210 kg of dolomite, 50 kg of limestone, 220 kg of soda ash, and 12 kg of mirabilite. Then add 20 kg of adhesive, stir with 60 kg of water and mix evenly, then transport to the hydraulic press, press to a density of about 2.3t / m 3 1. A block material with a size of 550×550×20mm; wherein the binder is formed by mixing bentonite, water glass and starch in a weight ratio of 3.5:1.8:2.

[0020] The compressed block material is transported to the roller kiln for heating by a conveyor, and the waste heat of the flue gas and fuel generated by the glass melting furnace are used to heat the material to preheat the material at 900°C to form a sinter composed of silicate and silicon dioxide. The blocks are immediately sent to the crusher and crushed into pellets with a size of 25×25×20~50×50×20mm in a hot state,...

Embodiment 2

[0023] On the horseshoe flame furnace rolling glass production line with a daily melting capacity of 110 tons, according to the amount of molten glass per ton, weigh 725 kg of quartz sand, 95 kg of calcite, 120 kg of dolomite, 230 kg of soda ash, 5 kg of mirabilite, and sodium nitrate 15 kilograms, 18 kilograms of aluminum hydroxide, 1.8 kilograms of antimony oxide, the adhesive agent that bentonite, water glass, starch are formed and water are mixed and join in the glass batch material, wherein, the ratio of bentonite, water glass, starch (weight ratio )=3.5:1.3:1.5, the amount added is 5% of the total amount of batch materials, and the amount of water used is 3% of the total amount of batch materials. The hydraulic press presses the batch to a density of about 2.2t / m 3 , a block material with a size of 550×550×20mm, the formed batch material is transported to the mesh belt kiln by the conveyor for heating, and the material is decomposed under the high temperature of 800°C, a...

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Abstract

The invention discloses an on-line hot preparation method of a glass batch. The method comprises the following steps of: adding a proper quantity of adhesives to a traditional glass batch and pressing the mixture into a block material; preheating to decompose the molded block material in a firing kiln to form a sintered block consisting of silicate and silicon dioxide, immediately pulverizing the block into granules in the hot state; conveying and uniformly scattering the granules into a filling pocket; and pushing into a glass kiln for melting. The on-line hot preparation method of the glass batch can greatly improve the heat conductivity coefficient of the batch, improve the melting rate of the glass kiln, increase the glass capacity and achieve the purpose of saving energy. The compacted glass batch block reduces flying dust in the glass kiln, prolongs the service life of refractory materials, prevents the blockage of a regenerative chamber, purifies the operating environment, reduces the flying loss of the batch and stabilizes the glass component. The method ensures that the melting rate can be improved by 20-30 percent. Compared with a traditional method, the method ensures that the fuel consumed for producing the same quantity of glass can be saved by 10-20 percent.

Description

technical field [0001] The invention relates to a method for preparing raw materials for glass production, especially a method for thermally preparing glass batch materials. Background technique [0002] The glass industry consumes a lot of energy and consumes a lot of mineral resources. Traditional glass production methods mostly use heat-reflective melting furnaces, which mainly rely on flames and large beams to transfer heat, and the thermal efficiency is low; powdery batch materials are directly pushed into the glass melting furnace by the feeder for melting, and the batch materials will be pushed into the glass melting furnace for melting. Involved in the air, the formed material layer is likely to cause dust flying under the action of the flame air flow, which will cause the kiln body to be eroded, the regenerator to be blocked, and the operating environment to deteriorate. The density of the powder batch material is 1.2-1.3t / m3, the thermal conductivity is 0.2W / m.K, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B3/02C03C6/04
CPCY02P40/50Y02P40/57
Inventor 汪建勋闵雁应浩刘起英刘军波孔繁华王定权李文丹赵明应益明
Owner 杭州蓝星新材料技术有限公司
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