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Method for absorbing and recycling yellow phosphorus burning heat by using heat-conducting oil

A heat-conducting oil and yellow phosphorus technology, which is used in thermal storage heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of phosphorus chemical industry that have not been used before, avoid hidden dangers of overpressure, reduce operating pressure and Safety requirements, reducing the effect of recycling and reuse

Inactive Publication Date: 2012-07-04
广西利达磷化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Phosphorus chemical industry has not seen its utilization

Method used

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  • Method for absorbing and recycling yellow phosphorus burning heat by using heat-conducting oil
  • Method for absorbing and recycling yellow phosphorus burning heat by using heat-conducting oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment one: the concentration of phosphate mother liquor and the drying of phosphate

[0023] Add the alkylbiphenyl type heat transfer oil into the high-level low-temperature heat-conducting oil tank I, and then open the valve I of the high-level low-temperature heat-conducting oil tank I, the valve III of the jacket outlet of the yellow phosphorus combustion furnace, and the valve IV of the oil tank II, Close the valve II of the jacket outlet of the yellow phosphorus combustion furnace, low-temperature heat transfer oil flows into the jacket of the yellow phosphorus combustion furnace to absorb heat, and control the flow rate of valve III at the outlet of the yellow phosphorus combustion furnace jacket to control the temperature of the heat transfer oil at the outlet of the yellow phosphorus combustion furnace jacket At 200°C, start the circulating oil pump to pump the low-temperature heat transfer oil from the oil tank II into the high-level low-temperature heat tr...

Embodiment 2

[0024] Embodiment two: the concentration of phosphate mother liquor

[0025] Add the alkylbenzene type heat transfer oil into the high-level low-temperature heat-conducting oil tank I, and then open and close the valve I of the high-level low-temperature heat-conducting oil tank I, the valve III of the jacket outlet of the yellow phosphorus combustion furnace, and the valve IV of the oil tank II The valve II at the outlet of the jacket of the yellow phosphorus combustion furnace, the low-temperature heat transfer oil flows into the jacket of the yellow phosphorus combustion furnace to absorb heat, and the flow rate of the valve III at the outlet of the jacket of the yellow phosphorus combustion furnace is controlled to control the temperature of the heat transfer oil at the outlet of the jacket of the yellow phosphorus combustion furnace 180 ℃, start the circulating oil pump to pump the low-temperature heat-conducting oil from the oil tank II to the high-level low-temperature h...

Embodiment 3

[0026] Embodiment three: the concentration of phosphate mother liquor, the drying of phosphate and preparation steam

[0027]Add the biphenyl / biphenyl ether low-melting mixture type heat transfer oil into the high-level low-temperature heat-conducting oil tank I, and then put the valve I of the high-level low-temperature heat-conducting oil tank I, the valve III of the jacket outlet of the yellow phosphorus combustion furnace, and the oil tank II The valve IV of the yellow phosphorus combustion furnace jacket is opened, and the valve II of the outlet of the yellow phosphorus combustion furnace jacket is closed. The low-temperature heat transfer oil flows into the yellow phosphorus combustion furnace jacket to absorb heat, and the flow rate of the valve III at the outlet of the yellow phosphorus combustion furnace jacket is controlled to control the yellow phosphorus combustion furnace jacket. The temperature of the heat transfer oil at the outlet is 360°C. Start the circulating...

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Abstract

The invention discloses a method for absorbing and recycling yellow phosphorus burning heat by using heat-conducting oil. The heat-conducting oil of which the boiling point is 160 to 400 DEG C serves as a heat-conducting medium, an oil circulating pump pumps the heat-conducting oil into a burning furnace jacket, and the high-temperature heat-conducting oil absorbing the yellow phosphorus burning heat is conveyed into an evaporator, a steam generator and an air heater to prepare concentrated solution or steam or dry air. Technical requirements of different temperature heating and cooling can be met by the method, so the potential hazard of over pressure caused by phase change gasification can be effectively avoided, the operation pressure and the safety requirement of a high-temperature heating system are greatly reduced, the reliability of a system and equipment is improved, high-temperature heat, middle-temperature heat and low-temperature heat are recycled, the recovery rate of the heat is improved, the problem of heat required in a technical flow can be solved, a special coal boiler, an afterheat boiler and a cooling water device are omitted, the yellow phosphorus burning heat yellow phosphorus burning heat cost is reduced, energy resources are saved, and the method has better economic benefit, social benefit and environment-protecting benefit.

Description

technical field [0001] The invention belongs to the technical field of heat energy recovery and utilization, and relates to a method for heat energy recovery and utilization, in particular to a method for absorbing and recycling yellow phosphorus combustion heat energy by using heat conduction oil and reusing it. Background technique [0002] Phosphoric acid and phosphates are an important part of the chemical industry. The production methods of phosphoric acid are divided into thermal phosphoric acid and wet phosphoric acid. Because thermal phosphoric acid has the advantages of high product concentration and less impurities, it has been widely used in phosphorus chemical enterprises. The main process of the production process of thermal phosphoric acid is yellow phosphorus melting, yellow phosphorus burning and hydration absorption. Chinese patent CN201010127125.2 The method for directly producing food-grade high-purity phosphoric acid from yellow phosphorus is that liqui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H7/00
Inventor 林军吴小海何忠华马钊松黄新兴韦仕能苏杰文王文营彭艳霞
Owner 广西利达磷化工有限公司
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