CN102512836A - Two-phase liquid mixture atmospheric distillation concentration and separation device and method - Google Patents

Two-phase liquid mixture atmospheric distillation concentration and separation device and method Download PDF

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Publication number
CN102512836A
CN102512836A CN2011103927434A CN201110392743A CN102512836A CN 102512836 A CN102512836 A CN 102512836A CN 2011103927434 A CN2011103927434 A CN 2011103927434A CN 201110392743 A CN201110392743 A CN 201110392743A CN 102512836 A CN102512836 A CN 102512836A
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China
Prior art keywords
evaporimeter
storage tank
graphite
concentrated
atmospheric distillation
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Pending
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CN2011103927434A
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Chinese (zh)
Inventor
李万清
王光明
杨泽荣
肖林波
蒋鑫华
窦德军
刘学锋
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Hubei Sanning Chemical Co Ltd
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Hubei Sanning Chemical Co Ltd
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Publication date
Application filed by Hubei Sanning Chemical Co Ltd filed Critical Hubei Sanning Chemical Co Ltd
Priority to CN2011103927434A priority Critical patent/CN102512836A/en
Publication of CN102512836A publication Critical patent/CN102512836A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a two-phase liquid mixture atmospheric distillation concentration and separation method and device. The two-phase liquid mixture atmospheric distillation concentration and separation method comprises the following steps of: evaporating a liquid to be concentrated or separated in an evaporator after the liquid to be concentrated or separated is circulated in a circulation pump and is heated by a graphite heater, removing foams from distillate through a cyclone foam remover, cooling the distillate through a graphite cooler, and separating usable elements and distilled water in a gas-liquid separator; and enabling raffinate at the bottom of the evaporator to enter a concentrated liquid finished-product storage tank through a reverse overflow pipe. According to the two-phase liquid mixture atmospheric distillation concentration and separation method and device disclosed by the invention, atmospheric distillation is utilized and a vacuum pump does not need to be used; and simultaneously, through an atmospheric-pressure operation, a condensation effect of the usable elements (easily volatile substances) of the distillate is reinforced, the recovery rate is improved, and the production cost is reduced.

Description

Air-distillation concentrates and separates the device and the separation method of two phase liquefied mixtures
Technical field
The present invention relates to a kind of air-distillation and concentrate and separate two method and apparatus of liquefied mixture mutually, belong to the technical field that the way of distillation concentrates, separates liquid phase substance.
Background technology
Conventional wet Phosphoric Acid Concentration and separate fluoride wherein or separate other two phases liquefied mixture (mutually volatile compare stable) and generally adopt vacuum distillation.Adopt vacuum distillation that following advantage is arranged: under negative pressure state, the solution boiling point is low, and the operating temperature of evaporimeter is low thereby little to corrosion on Equipment.But there is following some problem in vacuum distillation: the pressure in evaporimeter and the condenser is lower than atmospheric pressure, need extract gaseous material out keeping certain vacuum with vavuum pump, thereby need many consumption certain electric energy and noise pollution serious; Poor because of heat-transfer effect under the negative pressure state in actual production in addition; Steam in the distillate or other useful component (volatile type of material) a large amount of useful components under the bad situation of condensation are not liquefied and are siphoned away discharge by vavuum pump; The production loss strengthens, the operating environment variation.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, the method and apparatus that provides a kind of air-distillation to concentrate and separate two phase liquefied mixtures, this method adopts air-distillation, improves the rate of recovery of useful component in the distillate, improves operating environment.
The objective of the invention is to realize like this: a kind of air-distillation concentrates and separates the device of two phase liquefied mixtures; Comprise evaporimeter; Evaporimeter and graphite heater are formed closed cycle through circulating pump; The evaporimeter top is connected through pipeline with the whirlwind demister, and the whirlwind demister is connected with graphite cooler through pipeline, and graphite cooler is connected with gas-liquid separator by the road; Gas-liquid separator is communicated with useful component storage tank and distilled water storage tank, and evaporimeter is connected with concentrate finished product storage tank through an inverted L shape overflow pipe.
A kind of method of utilizing air-distillation devices concentrated and separation two phase liquefied mixtures to separate two phase liquefied mixtures; With solution to be concentrated or treat that parting liquid places in the evaporimeter; Solution to be concentrated or treat that parting liquid evaporates through circulating pump circulation, graphite heater heating back, distillate cools off through graphite cooler after the foam removal of whirlwind demister; Go out useful component and distilled water through gas-liquid separator separates, the base of evaporator tail washings gets into concentrate finished product storage tank through the inverted L shape overflow pipe.
Described solution to be concentrated is the phosphoric acid by wet process of fluoride or the mixture of phosphoric acid and other volatile component composition.
Described treat parting liquid be one mutually volatile, one compare two stable phase liquefied mixtures.
Adopt air-distillation, need not use vavuum pump.
Described evaporimeter and whirlwind demister are the ordinary carbon steel material, its inner liner polytetrafluoroethylene material; Concentrate
The finished product storage tank is the ordinary carbon steel material, its liner graphite material.
The method and apparatus that air-distillation provided by the invention concentrated and separated two phase liquefied mixtures carries out air-distillation because of adopting rich steam, need not use vavuum pump; Simultaneously; Adopt atmospheric operation, the condensation effect of volatile component strengthens having improved its rate of recovery, thereby reduces product cost.In addition, evaporimeter and whirlwind demister inner liner polytetrafluoroethylene material, finished product sump liner graphite material are more acidproof, high temperature resistant.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is an apparatus structure sketch map of the present invention.
The specific embodiment
Further introduce the present invention through specific embodiment below, but embodiment can not be construed as limiting the invention.
Air-distillation of the present invention is concentrated and separation two phase liquefied mixture device concrete structures are following:
Comprise evaporimeter 4; Evaporimeter 4 is formed closed cycle with graphite heater 2 through circulating pump 3; Evaporimeter 4 tops and whirlwind demister 5 are connected through pipeline, and whirlwind demister 5 is connected with graphite cooler 6 through pipeline, and graphite cooler 6 is connected with gas-liquid separator 7 by the road; Gas-liquid separator 7 is communicated with useful component storage tank 8 and distilled water storage tank 9, and evaporimeter 4 is connected with concentrate finished product storage tank 10 through an inverted L shape overflow pipe.Evaporimeter 4 is the ordinary carbon steel material with whirlwind demister 5, its inner liner polytetrafluoroethylene material.Concentrate finished product storage tank is the ordinary carbon steel material, its liner graphite material.Adopt air-distillation, need not use vavuum pump.
Concentration process embodiment 1:
75% phosphoric acid in the head tank 1 is delivered to evaporimeter 4 through pump, when the visor of liquid level to evaporimeter 4, stops into phosphoric acid.Start circulating pump 3, steam inlet valve and the condensation-water drain valve of opening graphite heater 2 slowly heat up, and open graphite condenser 6 chilled water terminal valves simultaneously.After device 4 upper temps to be evaporated reached 110 ℃, the control temperature was at 110~120 ℃.In the distilled water that gas-liquid separator 7 is separated to the distilled water storage tank 9, reclaim and use.The evaporimeter lower end is connected with concentrate 85% phosphoric acid finished product storage tank through an inverted L shape overflow pipe.When distillation yield reach inlet amount 10% the time, advance phosphoric acid continuously to evaporimeter, when phosphoric acid proportion reaches technic index in the evaporimeter, can begin the extraction concentrated phosphoric acid, realize producing continuously, whole process of production is accomplished under normal pressure.
Separation process embodiment 2:
With the material in the head tank 1 is two phase liquefied mixtures, and one mutually volatile one compares stablely, and material is delivered to evaporimeter 4 through pump, when the visor of liquid level to evaporimeter 4, stops into material.Start circulating pump 3, steam inlet valve and the condensation-water drain valve of opening graphite heater 2 slowly heat up, and open graphite condenser 6 chilled water terminal valves simultaneously.After device 4 upper temps to be evaporated reached 110 ℃, the control temperature was at 110~120 ℃.Useful component that gas-liquid separator 7 is separated and distilled water to useful component storage tank 8 and distilled water storage tank 9, reclaim and use respectively.When distillation yield reach charging 10% the time, advance material continuously to evaporimeter 4, when temperature reaches 110 ℃, can begin the raffinate in the extraction evaporimeter, realize producing continuously, whole process of production is accomplished under normal pressure.
Concentrating and separating process embodiment 3:
Fluoride phosphoric acid by wet process in the head tank 1 is delivered to evaporimeter 4 through pump, when the visor of liquid level to evaporimeter 4, stops into phosphoric acid by wet process.Start circulating pump 3, steam inlet valve and the condensation-water drain valve of opening graphite heater 2 slowly heat up, and open graphite condenser 6 chilled water terminal valves simultaneously.After device 4 upper temps to be evaporated reached 110 ℃, the control temperature was at 110~120 ℃.Hydrogen fluoride that gas-liquid separator 7 is separated and distilled water to useful component storage tank 8 and distilled water storage tank 9, reclaim and use respectively.The evaporimeter lower end is connected with concentrate finished product storage tank through an inverted L shape overflow pipe.When distillation yield reach charging 10% the time, advance phosphoric acid by wet process continuously to evaporimeter, when temperature reaches 110 ℃, can begin the extraction concentrated phosphoric acid, realize producing continuously, whole process of production is accomplished under normal pressure.

Claims (7)

1. an air-distillation concentrates and reaches the device that separates two phase liquefied mixtures; It is characterized in that: comprise evaporimeter (4); Evaporimeter (4) is formed closed cycle with graphite heater (2) through circulating pump (3); Evaporimeter (4) top is connected through pipeline with whirlwind demister (5), and whirlwind demister (5) is connected with graphite cooler (6) through pipeline, and graphite cooler (6) is connected with gas-liquid separator (7) by the road; Gas-liquid separator (7) is communicated with useful component storage tank (8) and distilled water storage tank (9), and evaporimeter (4) is connected with concentrate finished product storage tank (10) through an inverted L shape overflow pipe.
2. method of utilizing the described device of claim 1 to separate two phase liquefied mixtures; It is characterized in that: with solution to be concentrated or treat that parting liquid places in the evaporimeter (4); Solution to be concentrated or treat that parting liquid evaporates through circulating pump (3) circulation, graphite heater (2) heating back; Distillate is after whirlwind demister (5) foam removal; Through graphite cooler (6) cooling, isolate useful component and distilled water through gas-liquid separator (7), evaporimeter (4) bottom tail washings gets into concentrate finished product storage tank (10) through the inverted L shape overflow pipe.
3. method according to claim 2 is characterized in that: described solution to be concentrated is the phosphoric acid by wet process of fluoride or the mixture of phosphoric acid and other volatile component composition.
4. method according to claim 2 is characterized in that: described treat parting liquid be one mutually volatile, one compare two stable phase liquefied mixtures.
5. method according to claim 2 is characterized in that: adopt air-distillation, need not use vavuum pump.
6. device according to claim 1 is characterized in that: evaporimeter (4) is the ordinary carbon steel material with whirlwind demister (5), its inner liner polytetrafluoroethylene material.
7. device according to claim 1 is characterized in that: concentrate finished product storage tank (10) is the ordinary carbon steel material, its liner graphite material.
CN2011103927434A 2011-12-01 2011-12-01 Two-phase liquid mixture atmospheric distillation concentration and separation device and method Pending CN102512836A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103861302A (en) * 2014-03-31 2014-06-18 吴忠燕 Novel device for separating and recycling industrial and chemical waste liquid
CN104784948A (en) * 2015-04-27 2015-07-22 卢征春 Energy-saving atmospheric evaporation synthesis and recovery system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1413756A (en) * 2002-10-11 2003-04-30 天津大学 On-line high-efficientthree-phase flow evaporation concentration device with solid particle for preventing liquid on wall and operation method
CN1460636A (en) * 2003-06-17 2003-12-10 东华工程科技股份有限公司 Method for producing phosphoric acid by adopting steam heating forced circulation concentration wet process and its equipment
CN202337691U (en) * 2011-12-01 2012-07-18 湖北三宁化工股份有限公司 Device for atmospheric distillation concentration and separation of two-phase liquid mixture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1413756A (en) * 2002-10-11 2003-04-30 天津大学 On-line high-efficientthree-phase flow evaporation concentration device with solid particle for preventing liquid on wall and operation method
CN1460636A (en) * 2003-06-17 2003-12-10 东华工程科技股份有限公司 Method for producing phosphoric acid by adopting steam heating forced circulation concentration wet process and its equipment
CN202337691U (en) * 2011-12-01 2012-07-18 湖北三宁化工股份有限公司 Device for atmospheric distillation concentration and separation of two-phase liquid mixture

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103861302A (en) * 2014-03-31 2014-06-18 吴忠燕 Novel device for separating and recycling industrial and chemical waste liquid
CN103861302B (en) * 2014-03-31 2015-08-12 吴忠燕 A kind of industrial chemical waste liquid separation and recovery utilizes device
CN104784948A (en) * 2015-04-27 2015-07-22 卢征春 Energy-saving atmospheric evaporation synthesis and recovery system
CN104784948B (en) * 2015-04-27 2016-05-18 卢征春 The synthetic recovery system of energy-saving atmospheric evaporation

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Application publication date: 20120627