Hollow fibre membrane separation equipment and its operation method

A separation device and fiber membrane technology, which is applied in the field of membrane separation, can solve the problems of imperfect external pipeline design and cannot be used for tea juice, etc., and achieve the effect of speeding up filtration and improving production efficiency.

Inactive Publication Date: 2004-02-25
TIANJIN MOTIAN MEMBRANE ENG & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it still has shortcomings: the external pipeline design of the membrane module in the membrane device is not perfect
However, the above pipeline design is mainly used for water treatment, and cannot be used for tea juice, fruit juice, traditional Chinese medicine, fermentation liquid, etc.

Method used

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  • Hollow fibre membrane separation equipment and its operation method
  • Hollow fibre membrane separation equipment and its operation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Some kind of amino acid fermented liquid, wet bacterial weight 13%, want to remove the impurity such as bacterial body in fermented liquid. Using the membrane separation device of the present invention, one Φ90 standard industrial membrane module is configured, and the filtration and refining are carried out according to the following process parameters:

[0033] 1), working status. Open valves 1', 2, 3, 4, 7, close valves 1, 2', 5, 6', 8, 14, 15, adjust valves 1, 2, half open valves 6, 11, so that the working pressure is P1 inlet 0.09MPa, outlet pressure P2 0.07MPa. The working time is 20 minutes.

[0034] 2), cleaning state 1. Close the automatic valves 1', 3, open the automatic valves 2', 6', adjust the valves 6, 11 to keep water in the membrane module, and the reading of the gas flow meter is 3Nm for each membrane module 3 / h. The cleaning time is 20 seconds.

[0035] 3), cleaning state 2. Turn off the compressed air, open valve 1' and close valve 6'. The ri...

Embodiment 2

[0038] Ibid amino acid fermented liquid, wet bacteria weight 13%, want to remove impurities such as thalline in the fermented liquid. Adopt the membrane separation device of the present invention, wherein dispose 1 Φ90 standard industrial type membrane module, the pipeline without valve 11, carry out filtration refining according to following process parameter:

[0039] 1), working status. Open valves 1', 2, 3, 4, 7, close valves 1, 2', 5, 6', 8, 14, 15, adjust valves 1, 2, half open valve 6, so that the working pressure is 0.09MPa at the inlet of P1 , Outlet pressure P2 0.07MPa. The working time is 20 minutes.

[0040]2), cleaning state 1. Close the automatic valves 1', 3, open the automatic valves 2', 6', and the reading of the gas flow meter is 3Nm for each membrane module 3 / h. The cleaning time is 20 seconds.

[0041] 3), cleaning state 2. Turn off the compressed air, open valve 1' and close valve 6'. The rinse time is 2 seconds.

[0042] 4), open the valve 3, an...

Embodiment 3

[0044] Some kind of amino acid fermented liquid, the weight of wet bacteria is 3%, and it is desired to remove impurities such as bacteria in the fermented liquid. Using the membrane separation device of the present invention, one Φ90 standard industrial membrane module is configured, and the filtration and refining are carried out according to the following process parameters:

[0045] 1), working status. Open valves 1', 2, 3, 4, 7, close valves 1, 2', 5, 6', 8, 14, 15, adjust valves 1, 2, half open valves 6, 11, so that the working pressure is P1 inlet 0.09MPa, outlet pressure P2 0.07MPa. The working time is 20 minutes.

[0046] 2), cleaning state 1. Close automatic valves 1', 3, open automatic valves 2', 6', adjust valves 6, 11 to keep water in the membrane module, and the reading of the gas flowmeter is 3Nm for each membrane module 3 / h. The cleaning time is 20 seconds.

[0047] 3), cleaning state 2. Turn off the compressed air, open valve 1' and close valve 6'. Th...

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Abstract

The present invention provides a hollow fibrous membrane separation equipment and its operation method. Said membrane separation equipment includes membrane component, control valve, pressure gauge pump, air compressor, filter tank and connecting pipeline, liquid inlet pipeline and liquid outlet pipeline. The membrane separation equipment also includes working flow path, circulation reflux flow path, compressed air supplying pipeline, chemical cleaning reflux flow path and by-pass pipeline. Its operation method utilizes the valve on the pipeline to make said system implement switching-over between working state, first cleaning state, second cleaning state and chemical cleaning state.

Description

technical field [0001] The invention relates to a membrane separation technology, in particular to an external pressure hollow fiber membrane separation device and an operation method thereof. Background technique [0002] With the improvement of people's living standards, people's requirements for drinking water continue to increase, so-called pure water, space water or purified water has entered people's daily life. Moreover, production and industrial water, such as biochemical, pharmaceutical, food, seasoning and other fields, have higher and higher requirements for water purification. In recent years, people have developed microfiltration and ultrafiltration membrane technologies for water purification, which are meeting this need and have achieved good practical results. Among them, external pressure hollow fiber membranes are most widely used. This is because the external pressure hollow fiber membrane (hereinafter referred to as the membrane) has the largest filling...

Claims

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Application Information

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IPC IPC(8): B01D63/02
Inventor 吕晓龙
Owner TIANJIN MOTIAN MEMBRANE ENG & TECH
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