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A yellow phosphorus tail gas purification system

A purification system, a technology for yellow phosphorus tail gas, applied in the direction of combustible gas purification, combustible gas purification/transformation, gas dust removal, etc. Effect

Inactive Publication Date: 2011-12-14
JIANGSU DAMING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the existence of these highly corrosive impurities, when yellow phosphorus tail gas is used as boiler gas, it often leads to corrosion failure of boiler parts and greatly shortens the life of equipment

Method used

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  • A yellow phosphorus tail gas purification system
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Embodiment 1

[0019] A yellow phosphorus tail gas purification system, the system includes a gas separator 1, a first-level safety water seal 2, a second-level safety water seal 4, a third-level safety water seal 5, an alkali washing tower 6, a water washing tower 10, and a cyclone 13 , a first-level U-shaped water seal 14, a second-level U-shaped water seal 16, and a water vapor separator 17. The system includes a gas separator 1, a first-level safety water seal 2, a second-level safety water seal 4, a third-level safety water seal 5, an alkali washing tower 6, a water washing tower 10, a cyclone 13, and a first-level U-shaped water seal 14 , secondary U-shaped water seal 16, water vapor separator 17; wherein the air inlet 1-1 of the gas separator 1 is connected with the yellow phosphorus tail gas pipeline, and the gas outlet 1-2 of the gas separator 1 is respectively connected with the primary safety water seal The air inlet 2-1 of 2 is connected with the air inlet 4-1 of the secondary sa...

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Abstract

The invention belongs to the field of chemical industry and discloses a purifying system of an exhausting gas of yellow phosphorus. The purifying system comprises a gas separator, a primary safety water seal, a secondary safety water seal, a third safety water seal, an alkaline washing tower, a water washing tower, a swirler, a primary U-shaped water seal, a secondary U-shaped water seal and a water-steam separator. The purifying system of the exhausting gas of the yellow phosphorus can be used for effectively removing a large amount of harmful substances, such as phosphorus, sulphur, fluorine, arsenic, and the like in the exhausting gas of the yellow phosphorous and obtaining the usable fuel gas of the exhausting gas of the yellow phosphorus, thereby meeting the requirements of fuel gas equipment on the harmful substances, such as phosphorus, sulphur, fluorine, arsenic, and the like. The fuel gas generated by utilizing the purifying system can be used for producing series products, such as industrial phosphoric acid, food phosphoric acid and fine phosphate; and therefore energy resources are greatly saved, and the production cost of chemical enterprises is reduced.

Description

technical field [0001] The invention relates to a yellow phosphorus tail gas purification system. Background technique [0002] The production of yellow phosphorus is mainly to add phosphate rock, silica and coke into the electric furnace, and the materials are melted in the electric furnace and undergo various chemical reactions such as phosphorus reduction to produce phosphorus vapor and electric furnace slag. The furnace gas enters four series-connected condensation towers and sprays water to recover the phosphorus in the furnace gas. After the recovered phosphorus enters the refining tank and is heated, kept warm, rinsed and settled, the crude phosphorus is separated into mud phosphorus and finished yellow phosphorus, and the finished yellow phosphorus is put into the finished product tank and then packaged by siphon. The phosphorus furnace tail gas from the cooling tower is distributed through the tail gas general water seal, and part of it is sent to the raw material ...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D50/00C10K1/10C10K1/02
Inventor 潘小明李执阶潘新明廖志年
Owner JIANGSU DAMING TECH
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