High-temperature powder-containing gas cooling treatment and heat recovery device

Abstract

The invention provides a high-temperature powder-containing gas cooling treatment and heat recovery device. The high-temperature powder-containing gas cooling treatment and heat recovery device comprises a barrel shell part, a gas outlet pipe fixing plate, a gas distribution pipe fixing plate, a gas-steam partition plate, a plurality of gas distribution guide pipes, a plurality of heat exchange branch pipes, a plurality of gas outlet guide pipes, a cooling gas outlet pipe, a steam outlet main pipe, a water supplementing pipe, a hot gas inlet pipe and a liquid level meter. According to the high-temperature powder-containing gas cooling treatment and heat recovery device, heat in gas is recovered in a steam form, the poor quality phenomenon (such as agglomeration and aerogel characteristic loss) that water vapor in the gas is condensed and consequently powder is damaged is avoided, and reliable conditions are provided for normal operation of equipment for collecting nanoscale powder in the gas through a dry method; hot gas flow is evenly distributed in each heat exchange branch pipe, the heat exchange efficiency is improved, the temperature of the gas in each heat exchange branch pipe is uniform, and the water vapor condensation phenomenon and the too high temperature phenomenon of the gas flow in each heat exchange branch pipe are avoided; and the high-temperature powder-containing gas cooling treatment and heat recovery device has the beneficial effects that blockage of a gas flow pipeline is avoided, the structure is compact, safety is high, and the service life is long.

Description

technical field [0001] The invention belongs to the technical field of inorganic non-metallic materials, in particular to a high-temperature powder-containing gas cooling treatment and heat recovery device. Background technique [0002] At present, the ethanol cracking furnace gas for producing nano-scale carbonaceous powder materials and the acetylene cracking furnace gas for carbon black production contain a large amount of powder components (such as carbon nanotubes, carbon black) and the temperature is high. The existing technology for cooling, gas-solid separation and other treatments has the disadvantages of complicated procedures, many equipment, and large space occupation. In order to avoid the problem of high-temperature gas burning dry collection (or gas-solid separation) equipment (such as electric dust capture), the The treatment technology of spraying water or steam to cool down this high-temperature gas has the disadvantages of increasing the gas processing cap...

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Problems solved by technology

[0003] The purpose of the present invention: mainly aiming at the above situation, in order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a non-direct water spray to cool down the high-temperature gas containing powder, and avoid the agglomeration of fine powder caused by water spray or steam spray And other adverse phenomena occur, and meet the temperature conditions of subsequent gas-solid separation equipment (such as electrostatic precipitator) to collect powder equipment, and can improve product quality and can recover the heat in high-temperature gas containing powder, and cool down the high-temperature gas containing powder and heat recovery unit

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