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Device for increasing concentration multiple of membrane and concentration of concentrated solution and use method

A membrane concentration, high-concentration technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve problems such as difficulty in interception rate, influence of feed properties, accelerated membrane fouling, etc.

Pending Publication Date: 2019-07-30
成都泓润科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This application proposes a device and method for increasing the concentration ratio of the membrane and the concentration of the dope, which solves the problem of large energy loss in the prior art, which may affect the properties of the feed material, and the negative effect is very obvious. The continuous increase of the feed liquid concentration accelerates membrane fouling and reduces the filtration flux of the membrane; at the same time, it solves the problems of seawater desalination, landfill leachate desalination, separation and concentration of high-salt protein solution, protein polypeptide, amino acid concentration, etc., wet method Metallurgical wastewater or hydrometallurgical process liquid, gelatin concentration, animal and plant extracts and fermentation liquid concentration and other high-concentration raw liquid concentration, separation and purification fields: membrane filtration has low precision and can achieve material concentration multiples, but the interception rate is difficult to meet the requirements. It is easy to "run the material"; the membrane filtration precision is high, and the technical problem of "no liquid coming out" is easily caused due to the excessive concentration of the material; at the same time, it effectively reduces the characteristics of large fluctuations or linear changes in the concentration of permeate clear night

Method used

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  • Device for increasing concentration multiple of membrane and concentration of concentrated solution and use method
  • Device for increasing concentration multiple of membrane and concentration of concentrated solution and use method
  • Device for increasing concentration multiple of membrane and concentration of concentrated solution and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] refer to Figure 1-6 , the magnesium sulfate solution that needs to be processed is passed into the concentrated liquid series independent concentration section through the raw liquid inlet system, and the concentrated liquid that enters the concentrated liquid series section 4 is separated into concentrated liquid and clear liquid step by step again, and the concentrated liquid at the terminal The liquid is discharged from the concentrated liquid outlet pipe, and the terminal clear liquid is returned from the clear liquid return pipe 5 to the filter tank 2 of the first stage in the multi-stage filter tank, and the clear liquid on the filter tank 2 of each stage is discharged through the clear liquid tube discharge.

[0041] The composition of magnesium sulfate solution before process treatment is as follows:

[0042] Table 1

[0043]

[0044] Table 2

[0045]

[0046] table 3

[0047]

[0048] Table 4

[0049]

[0050] In Table 1-4, "<" plus detection ...

Embodiment 2

[0067] refer to Figure 1-6, the black wolfberry dried fruit extract that needs to be processed is passed into the clear liquid series section 1 to separate the black wolfberry dried fruit extract into concentrated liquid and clear liquid step by step, and the clear liquid at the terminal is discharged from the clear liquid outlet pipe, and the filter tanks at all levels The dope on 2 returns to the original liquid inlet system through the dope return pipe 6.

[0068] The components of black wolfberry dried fruit extract before processing are shown in Table 7:

[0069] Table 7

[0070]

[0071] The traditional open circulation or intermittent semi-open and semi-closed system does not come out after the raw liquid enters the system, which cannot meet the needs of concentration of high-concentration raw liquid at all.

[0072] The test data of the concentrated solution after the process treatment device of the present application is processed is shown in Table 8:

[0073] ...

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Abstract

The invention relates to a device for increasing the concentration multiple of a membrane and the concentration of a concentrated solution. The device comprises a clean liquid series connection section or a concentrated liquid series connection section or a combination of the clean liquid series connection section and the concentrated liquid series connection section. The clean liquid series connection section is formed by using clean liquid outlet pipes for sequentially connecting multi-stage filter tanks in series and / or in parallel, wherein the last-stage filter tank is connected with a clean liquid outlet system through one clean liquid outlet pipe, and except for the first-stage filter tank, a concentrated liquid outlet end of the filter tank at each stage returns liquid to a liquid inlet end of the filter tank at a previous arbitrary stage through a concentrated liquid returning pipe. The concentrated liquid series connection section is formed by using concentrated liquid outletpipes for sequentially connecting multi-stage filter tanks in series or in parallel, the last-stage filter tank is connected with a concentrated liquid outlet system through a concentrated liquid outlet pipe, a clean liquid outlet end of the last-stage filter tank returns liquid to a liquid inlet end of the filter tank at a previous arbitrary stage through a clean liquid returning pipe, and the clean liquid outlet end of each filter tank at the remaining stages discharges the liquid to the clean liquid outlet system through a clean liquid outlet pipe. A filter membrane is arranged in the filter tank at each stage in the clean liquid series connection section and the concentrated liquid series connection section.

Description

technical field [0001] The invention relates to the technical fields of environmental protection and industrial production, in particular to a device and a method for increasing the membrane concentration ratio and dope concentration. Background technique [0002] Membrane is a polymer material with special selective separation function. It can separate the material into two parts that are not connected, so that one or several of them can pass through and separate other substances. Membrane separation technology has been widely used for its high efficiency, energy saving, environmental protection and high precision separation. It is widely used in medicine, chemical industry, electronics, food, environmental protection and other fields, becoming one of the most important industrial technologies in the future. Membrane separation technology adopts a dynamic "cross-flow filtration" or "tangential flow filtration" method that is completely different from the traditional "dead-...

Claims

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Application Information

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IPC IPC(8): B01D61/00B01D65/00B01D61/58B01D61/02B01D61/12B01D61/14B01D61/22B01D69/04B01D69/06B01D69/08
CPCB01D61/00B01D65/00B01D61/58B01D61/027B01D61/12B01D61/145B01D61/147B01D61/22B01D61/025B01D69/04B01D69/06B01D69/08
Inventor 陈智根张勇翟君锋黄鹏浩吴健
Owner 成都泓润科技有限公司
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