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Concentrated solution backflow circulating type membrane separation equipment and method thereof

A technology for concentrated liquid and membrane separation, applied in semi-permeable membrane separation, chemical instruments and methods, membrane technology, etc. Effect

Inactive Publication Date: 2012-07-18
于水利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that when the existing membrane equipment separates high-concentration materials, because there is no circulation pump, the flux of the membrane equipment begins to decrease with the increase of pressure, which leads to the decline of the anti-pollution performance of the membrane, and then provides A concentrated liquid backflow circulation type membrane separation equipment and method thereof

Method used

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  • Concentrated solution backflow circulating type membrane separation equipment and method thereof
  • Concentrated solution backflow circulating type membrane separation equipment and method thereof
  • Concentrated solution backflow circulating type membrane separation equipment and method thereof

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specific Embodiment approach 1

[0010] Specific implementation mode one: combine figure 1 Describe this embodiment, the concentrated liquid reflux circulating membrane separation equipment of this embodiment includes a buffer water tank 1, a feed pump 2, a circulation pump 3, a membrane module 4, a feed pump suction pipe 5, a feed pump pressure pipe 6, a circulation Pump suction pipe 7, circulation pump pressure pipe 8, concentrate delivery pipe 9, return pipe 10, circulation pipe 11, concentrate discharge pipe 12 and permeate output pipe 13, the input end of the feed pump 2 passes through the feed pump suction pipe 5 is connected to the buffer water tank 1, the output end of the feed pump 2 is connected to the suction pipe 7 of the circulation pump through the pressure water pipe 6 of the feed pump, the input end of the circulation pump 3 is connected to the suction pipe 7 of the circulation pump, and the output end of the circulation pump 3 is connected to the suction pipe 7 of the circulation pump. The i...

specific Embodiment approach 2

[0011] Specific implementation mode two: combination figure 1 To describe this embodiment, the inner diameter of a single tubular membrane in the membrane module 4 of this embodiment is 0.1 mm to 50 mm, and the membrane pore diameter of the tubular membrane is 0.001 μm to 10 μm. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0012] Specific implementation mode three: combination figure 1 To illustrate this embodiment, this embodiment and the concentrated liquid backflow circulation type membrane separation equipment further include a back pressure valve 14 installed on the concentrated liquid delivery pipe 9 . Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

Concentrated solution backflow circulating type membrane separation equipment and a method thereof relate to membrane separation equipment and methods in the field of liquid material separation and aim to solve the problems of membrane pollution and low membrane flux when the conventional membrane equipment is used for separating high-concentration material. The equipment is characterized in that the two ends of a feeding pump 2 are connected with a buffering water tank and a circulating pump respectively; the circulating pump is connected with a membrane component; and the membrane component is connected with the buffering water tank, the circulating pump and a concentrated solution discharge pipe through pipelines respectively. The method comprises the following steps: 1, the feeding pump conveys feed liquid to the circulating pump from the buffering water tank; 2, the circulating pump conveys the feed liquid to the membrane component; 3, membrane separation of the feed liquid is implemented in the membrane component; 4, concentrated solution separated by the membrane component is divided into three paths after flowing to the outlet of the membrane component, wherein one path is discharged or collected and utilized by the concentrated solution discharge pipe, another path enters the membrane component through a return pipe and a circulation pipe for circulating separation, and the other path flows to the buffering water tank through the return pipe; and 5, penetrating fluid of the membrane is conveyed to a main pipeline or storage equipment through a delivery pipe.

Description

technical field [0001] The invention relates to membrane separation equipment and a method in the field of liquid material separation. Background technique [0002] Membrane separation equipment is more and more widely used in chemical separation, water treatment, material purification and other fields. At present, the membrane equipment on the market can be roughly divided into hollow fiber membrane equipment and flat membrane equipment. Among them, hollow fiber membrane equipment can be divided into internal pressure membrane equipment and external pressure membrane equipment according to the different ways of small molecule material liquid permeating the membrane; according to the different installation positions of membrane modules, it can be divided into impregnated membrane equipment and external membrane equipment. Membrane equipment. Plate membrane equipment is mostly impregnated membrane equipment. The above-mentioned various membrane equipments all exist: when t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D61/00B01D63/06
Inventor 于水利
Owner 于水利
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