Pyramid loosening material filler

Abstract

The invention relates to a pyramid loosening material filler. A pyramid is a triangular pyramid and has four peaks and is formed by six support beams of the same size, each peak is formed in a way that the end points of three support beams are fixedly connected, and the filler is uniformly distributed in high-temperature material solid particles of gas-solid contact waste heat recovery. The pyramid loosening material filler is uniformly mixed with the high-temperature particles, so that the void ratio of the particle material is increased, the uniformity of the void ratio of the material is improved, the gas flow resistance between unit materials is reduced, and when a waste heat recovery shaft furnace process is applied to heat recovery, the energy consumption of an air supply fan is greatly reduced; the condition of uneven distribution of the void ratio of the cross section of the material due to rolling and gathering of the pyramid structure in the process of distribution on the topof a shaft furnace is difficult to occur, and therefore, the cooling process is uniform and efficient; and the pyramid loosening material filler has the advantages of good heat conductivity and heatstability, large specific surface area and the firm and wear resistant structure and can be recycled, the gas-solid heat exchange efficiency is improved, and the material cooling height is reduced.

Description

technical field [0001] The invention relates to the field of solid material waste heat recovery, in particular to a pyramidal loosening material layer filler used for gas-solid contact waste heat recovery. Background technique [0002] At present, waste heat recovery shaft furnace is a common gas-solid contact heat transfer equipment, which is widely used because of its high heat transfer efficiency and environmental protection, such as CDQ furnace and sintering shaft furnace. In the waste heat shaft furnace, high-temperature (500-1100°C) solid particles and circulating cooling gas flow in reverse to complete the convective heat exchange process. After heat exchange, the high-temperature gas enters the subsequent section through the exhaust port for waste heat recovery, and the cooled low-temperature (50-200°C) solid particles are discharged from the bottom of the shaft furnace. [0003] The energy consumption of the waste heat recovery shaft furnace mainly depends on the r...

AI Technical Summary

Problems solved by technology

Therefore, when using the principle of waste heat recovery shaft furnace to recover the heat of high-temperature granular materials with small porosity and average particle size, high gas flow resistance will be generated, the energy consumption of operation will be too high, and even the air supply system cannot provide the rated circulating air volume. Cause waste heat recovery shaft furnace to fail to operate normally

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