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Preheating systems for bulk raw materials for rock wool, basalt fiber or glass production

A basalt fiber and raw material technology, which is applied in the feeding of melting furnaces, glass manufacturing equipment, manufacturing tools, etc., can solve the problems of high-temperature flue gas purification and treatment costs, high energy consumption of kilns, and large heat absorption, etc., to reduce kiln Furnace energy consumption, cost reduction, and difficulty reduction effects

Active Publication Date: 2020-06-16
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The melting temperature of bulk raw materials is usually above 1000°, which needs to absorb a lot of heat energy, and the energy consumption of the kiln is very high
The high-temperature flue gas produced by the melting of the existing kiln is directly discharged to the atmosphere after preliminary purification, resulting in a great waste of energy, and the purification cost of the high-temperature flue gas is relatively high

Method used

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  • Preheating systems for bulk raw materials for rock wool, basalt fiber or glass production
  • Preheating systems for bulk raw materials for rock wool, basalt fiber or glass production
  • Preheating systems for bulk raw materials for rock wool, basalt fiber or glass production

Examples

Experimental program
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Effect test

Embodiment approach 1

[0019] refer to Figure 1 ~ Figure 3 , a preheating system for producing rock wool, basalt fiber or glass block raw materials, comprising a kiln 1, a feed bin 11 and a feeding machine 4, a hot air distributor 10 and an exhaust chimney 13 are arranged in the feed bin, The upper end of the exhaust chimney 13 stretches out of the feed bin and is provided with an air outlet, and the lower end of the exhaust chimney 13 stretches into the bottom of the feed bin to be provided with an air inlet; A channel for block raw materials to pass is provided between the inner walls of the warehouse 11; the hot air distributor 10 includes a closed cavity surrounded by side walls, and the side walls are distributed with a number of air outlet holes, and the closed cavity and The high-temperature exhaust chimney 6 on the top of the kiln is connected; the top of the silo is provided with a raw material inlet, and the bottom of the silo is provided with a raw material outlet. The inlet of furnace ...

Embodiment approach 2

[0026] refer to Figure 4 Embodiment 2 is basically the same as Embodiment 1, except that the hot air distributor 100 is a cube with a closed cavity surrounded by steel plates, the top surface of the cube is a slope 110, and the side walls around the steel plate are uniform. Air outlet holes 1101 are distributed. The hot air distributor 100 can be arranged in the silo 11 through a bracket, and its inner chamber communicates with the high-temperature exhaust chimney 6 through a section of air duct.

[0027] Parts that are not specifically described in the above specification are all prior art, or can be realized by prior art.

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Abstract

The invention discloses a preheating system for a blocky raw material for production of rock wool, basalt fibers or glass. The preheating system comprises a kiln, a material cabin and a feeding machine, wherein the material cabin is internally provided with a hot air distributor and an exhaust chimney; the upper end of the exhaust chimney extends outside the material cabin; an exhaust hole is formed in the upper end; the lower end of the exhaust chimney extends into the bottom of the material cabin; an air inlet is formed in the bottom; the hot air distributor is arranged in the middle of thematerial cabin and is communicated with a high-temperature exhaust chimney at the arch top of the kiln; a raw material inlet is formed in the top of the material cabin; a raw material outlet is formedin the bottom of the material cabin; the raw material outlet is communicated with the inlet of the feeding machine through a discharge valve; and the outlet of the feeding machine is communicated with the inlet of the kiln. By adopting the preheating system, a high-temperature flue gas of the kiln is recycled, the blocky raw material is preheated by using waste heat of the high-temperature flue gas, the primary temperature of the blocky raw material fed into the kiln is increased, and energy consumption of the kiln can be thus greatly reduced.

Description

technical field [0001] The invention relates to the technical field of inorganic non-metallic material processing, in particular to a preheating system for producing block raw materials of rock wool, basalt fiber or glass. Background technique [0002] Rock wool, basalt fiber or glass are produced from bulk rock or glass batch briquettes. During the melting process of bulk raw materials in the kiln, from cold solid state to softening and melting is a process of gradual conversion by absorbing heat. The melting temperature of bulk raw materials is usually above 1000°, which requires a large amount of heat energy to be absorbed, and the energy consumption of the kiln is very high. The high-temperature flue gas produced by the melting of the existing kiln is directly discharged into the atmosphere after preliminary purification, resulting in a great waste of energy, and the purification treatment cost of the high-temperature flue gas is relatively high. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B3/02
CPCC03B3/02
Inventor 于守富谭良李卫军孙振海
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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