Safe phosphorus supply device for thermal phosphoric acid production

A thermal phosphoric acid and safe technology, applied in the field of phosphorous chemical industry, to achieve the effect of reducing energy consumption, stable quality and strong practicability

Active Publication Date: 2010-08-18
GUANGXI MINGLI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of the high-level phosphorus supply method in the existing thermal acid production, aiming to provide a kind of safe and reliable phosphorus supply,

Method used

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  • Safe phosphorus supply device for thermal phosphoric acid production
  • Safe phosphorus supply device for thermal phosphoric acid production

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Experimental program
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Embodiment

[0015] The safe phosphorus supply device for thermal phosphoric acid production includes a phosphorus melting tank 2, a regulating valve 6, a meter 7, and a combustion furnace 9. The phosphorus-melting tank 2 is fabricated by welding stainless steel, or by welding lead-plated composite material, PYC composite material or glass-steel composite material. The phosphorus-melting tank 2 is provided with one or more sections of phosphorus-melting chambers, and the multi-section phosphorus-melting chambers are separated by partitions 3 . The bottom of the partitions 3 is provided with square or round phosphorus holes, and the partitions 3 are welded to the phosphorus-melting tank 2 . The phosphorus melting tank 2 is provided with a heating jacket 1, the bottom of the jacket 1 is provided with a water inlet 17 and is connected with the water outlet 12 of the combustion furnace 9 by an insulating water pipe 18, and the water inlet of the jacket 1 is connected diagonally to the upper par...

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Abstract

The invention discloses a safe phosphorus supply device for thermal phosphoric acid production. A melting material, namely yellow phosphorus is safely conveyed through water level difference in a low melting slot, and then enters a furnace from the bottom of the combustion furnace, so that a dangerous operation step that the melting yellow phosphorus in the high risk state is conveyed to a high slot through a high pressure pump or compressed air, and then is bunt by high pressure spraying in the traditional production line is avoided; and the effects of energy consumption reduction, equipment investment reduction and stable quality are achieved. The safe phosphorus supply device for the thermal phosphoric acid production has the advantages of strong practicability and better economic benefit.

Description

Technical field: [0001] The invention belongs to the phosphorus chemical technology and relates to a safe phosphorus supply device for thermal phosphoric acid production. technical background: [0002] Phosphoric acid is an important part of the chemical industry and an important basic chemical raw material. The production methods of phosphoric acid are divided into thermal phosphoric acid and wet phosphoric acid. Thermal phosphoric acid refers to phosphoric acid that uses phosphate rock as raw material, firstly processes it into elemental phosphorus, and then processes it with elemental phosphorus; wet-process phosphoric acid refers to phosphoric acid that is directly processed from phosphate rock and inorganic acid as raw materials. The crude product of wet-process phosphoric acid contains more impurities and is mainly used to produce fertilizers; while thermal phosphoric acid has the advantages of high product concentration and less impurities, it can be used to manufact...

Claims

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Application Information

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IPC IPC(8): C01B25/20
Inventor 林军林明吴小海马钊松
Owner GUANGXI MINGLI CHEM
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