Glass fiber reinforced plastic complete equipment for purifying yellow phosphorus tail gas

Abstract

The invention provides glass fiber reinforced plastic complete equipment for purifying yellow phosphorus tail gas. The equipment is characterized in that a plurality of nozzles are disposed under liquid inlet pipes, and filler plates are disposed on the middle-lower parts and middle-upper parts of an alkaline washing tower, a first salt washing tower, a second salt washing tower and a third salt washing tower. An air inlet is arranged in the lower left part of a water washing tower, penetrates through the water washing tower and downward extends below the liquid level. The middle-lower part of the water washing tower is provided with a fan, and the middle-upper part of the water washing tower is provided with a porous ceramic layer the middle part of which is provided with a push pedal. A push rod is disposed on the left center position of the push pedal, and a hydraulic cylinder is connected with the other end of the push rod. The complete equipment has a reasonable and normal structure, is convenient to use, and can remove carbon dioxide, methane, hydrogen, hydrogen phosphide, hydrogen sulfide, carbonyl sulfide, carbon disulfide, hydrogen fluoride and hydrogen cyanide in yellow phosphorus tail gas effectively by means of comprehensive benefits of multiple spray towers to improve the purity of carbon monoxide for later use.

Description

technical field [0001] The invention relates to operation and transportation equipment for purifying waste gas by using a gas-liquid contact method, in particular to a complete set of equipment for purifying glass fiber reinforced plastics for yellow phosphorus tail gas. Background technique [0002] my country's phosphate rock resources are mainly concentrated in Yunnan, Guizhou, Sichuan and Hubei. Phosphate rock is one of the characteristic and advantageous mineral resources in western my country. The by-product tail gas produced by yellow phosphorus is only used by a few enterprises as heat sources for heating and raw materials for chemical product processing. Part of it is vented and burned, resulting in energy waste, and the phosphorus, sulfur, fluorine, arsenic and other chemical substances contained in the tail gas pollute the environment, causing great harm to the environment. The CO in the yellow phosphorus tail gas is as high as about 90%. CO is an important basic r...

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Problems solved by technology

[0003] After recovery and purification of yellow phosphorus tail gas and CO purification, carbonylation or transformation into synthesis gas can be used to produce oxalic acid, formic acid, acetic acid, methanol, dimethyl ether, dimethyl carbonate, synthetic ammonia, formamide, gasoline, etc. In the past, important chemical products were not recycled due to the restriction of yellow phosphorus tail gas purification technology, and they were all burned and emptied, which not only wastes resources, but also pollutes the environment

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