A jacketed multi-circuit naphthalene forced crystallization recovery device

Abstract

The invention relates to a jacketed multi-loop naphthalene forced crystallization and recycling apparatus, comprising a barrel, a multi-layer screen tube, a grid plate, a needle bearing, an O-shaped belt, a pulley, and a reduction motor; the needle bearing is mounted at the bottom of the barrel, a shaft lever of the grid plate is mounted in the needle bearing, the grid plate and the multi-layer screen tube are nested in a staggered manner to form a multi-loop structure; a fastening structure is provided between the bottom of the multi-layer screen tube and a bottom stand of the barrel to fix the barrel and the multi-layer screen tube; the reduction motor drives the grid plate to rotate through the o-shaped belt; the grid plate is fitted with a brush, the brush comes in frictional contact with the surface of the multi-layer screen tube when the grid plate rotates to scrape off crystal that falls into a tank. The jacketed multi-loop naphthalene forced crystallization and recycling apparatus as an auxiliary device to a naphthalene tank breather valve and is mounted between a naphthalene tank and the breather valve through a reducing flange to carry out naphthalene forced cooling and crystallization and scrape off the crystal into the tank; the jacketed multi-loop naphthalene forced crystallization and recycling apparatus is simple in structure and is easy to implement, and the problem of the prior art that naphthalene crystal blocks the top breather valve of a naphthalene storage tank is solved.

Description

technical field [0001] The invention relates to a jacket type multi-circuit naphthalene forced crystallization recovery device, specifically an additional device for a naphthalene tank breather valve, which is installed between the naphthalene tank and the breather valve for enhanced cooling and crystallization of naphthalene gas and scraping Device for recovery into tank. Background technique [0002] Coal tar is one of the important products of the coking industry, and many products and raw materials of coking plants contain a certain proportion of naphthalene or naphthalene compounds. At present, in storage tanks containing liquid naphthalene, the temperature in the tank is generally between 80°C and 90°C, and there are a large amount of naphthalene vapors between the naphthalene liquid level and the tank top, which will go along the breathing valve on the top of the naphthalene storage tank. The tank overflowed. The crystallization temperature of naphthalene is 78°C, a...

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Problems solved by technology

[0003] The present invention aims at the problems existing in the above-mentioned prior art, and provides a jacketed multi-circuit naphthalene forced crystallization recovery device. Gas-enhanced cooling and crystallization and scraping and recycling into the tank, which solves the problem of crystallized naphthalene clogging the top breathing valve of the naphthalene storage tank in the prior art

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