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Performance testing device, testing method and screening method of fiber rotary disc filter cloth

A testing device and fiber turntable technology, applied in chemical instruments and methods, moving filter element filters, filtration and separation, etc., can solve problems such as inability to truly reflect engineering operations and difficulty in selecting filter cloths.

Active Publication Date: 2014-10-29
THUNIP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the defects that the filter cloth of the existing fiber rotary disc filter is difficult to select and the traditional performance test cannot truly reflect the engineering operation situation, the purpose of the present invention is to provide a test device that can directly test the performance of the filter cloth at the engineering site

Method used

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  • Performance testing device, testing method and screening method of fiber rotary disc filter cloth
  • Performance testing device, testing method and screening method of fiber rotary disc filter cloth
  • Performance testing device, testing method and screening method of fiber rotary disc filter cloth

Examples

Experimental program
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Effect test

Embodiment 1

[0112] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. The performance testing device of embodiment 1 fiber disc filter filter cloth

[0113] Such as Figure 1a , 1b As shown, the main body of the performance testing device for fiber rotary disc filter cloth is an "L"-shaped hollow drainage pipe, and a clamping part for fixing the filter cloth to be tested is arranged at the bottom outlet of the hollow drainage pipe.

[0114] Before the test device is used, the filter cloth to be tested is evenly and tightly fixed on the clamping part. When the test device is in use, the filtered sewage is injected from the top inlet at a specific flow rate, flows through the entire hollow drain pipe, is filtered by the filter cloth and then the treated water is discharged.

[0115] As a preferred technical solution, the inner diameter of the hollow drain pipe can be set to 100-200mm, more preferably 150mm...

Embodiment 2

[0118] The main hollow drain pipe of the test device can be made of organic glass, polyvinyl chloride, polypropylene chloride, polytetrafluoroethylene, polytetrafluoropropylene, polystyrene, polystyrene or glass. Perspex is preferred. The performance test method of embodiment 2 fiber disc filter filter cloth

[0119] Prepare the performance testing device of the fiber rotary disc filter cloth of Example 1, wherein the inner diameter of the hollow drain pipe is 150mm and the height is 1200mm, and the clamping parts for fixing the filter cloth to be tested are two flanges of the same size , from the height of 300mm upwards from the center of the flange, the drain outlets are evenly set at intervals of 50mm on the wall of the hollow drain pipe. The material of the hollow drain pipe is plexiglass.

[0120] Cut a certain microfiber filter cloth to be tested properly and fix it in the middle of the double flanges. The effective filter cloth inner diameter for filtering is 10cm. T...

Embodiment 3

[0124] The screening of embodiment 3 filter cloths

[0125] Using the performance testing device of the fiber rotary disc filter cloth of embodiment 1, a field experiment was carried out in a sewage advanced treatment plant.

[0126] 1. Pre-screening

[0127] Firstly, select a filter cloth to be tested, test and calculate a set of initial filtration rate values ​​under different influent suspended matter concentrations according to the test method described in Example 2. Such as figure 2 As shown, the concentration of influent suspended solids increased from 6mg / L to 40mg / L (6, 14.9, 15, 15.7, 16, 18, 20, 23, 23.5, 30, 30.5, 31, 32.5 and 40mg / L) , the average value is 22.6mg / L, the initial filtration rate of the filter cloth has no obvious increase trend, and always fluctuates between 17-40m / h, the average value Qave of the initial filtration rate is 25.7m / h, and the maximum value Qmax is 37.4m / h, and the minimum value Qmin is 17m / h, meeting the requirements of (Qmax-Qave)...

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Abstract

The invention relates to a performance testing device for filtering cloth of a fiber rotary disc filter. The testing device is an 'L'-shaped hollow water discharging pipe and a clamping part for fixing to-be tested filtering cloth is arranged at a bottom outlet of the hollow water discharging pipe. The invention also relates to applications of the testing device in selection of the filtering cloth of the fiber rotary disc filter, a performance testing method for the filtering cloth of the fiber rotary disc filter and a selection method for the filtering cloth of the fiber rotary disc filter. The testing device is simple in structure, small in size and convenient for direct on-site testing at an engineering field, so that the testing result is close to the actual situation of engineering and can be used for directly guiding engineering applications. By the testing method and the selection method based on engineering field tests of specific projects, reliable technical basis can be directly provided for design and operation of the specific projects.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a performance testing device for a filter cloth of a fiber rotary disc filter, a method for testing the performance of a filter cloth of a fiber rotary disc filter using the testing device, and a filter using the testing device and the testing method. Cloth screening method. Background technique [0002] Fiber rotary disc filter is a relatively commonly used filter equipment in China at present. It is mainly used for advanced treatment and reuse of reclaimed water after sewage is treated by activated sludge biochemical system. According to the field of use, it can be used for the advanced treatment and preliminary treatment of sewage. The advanced treatment of sewage refers to the further treatment of sewage after a certain preliminary treatment. The concentration of suspended solids in sewage is usually in the range of 5-40mg / L; The preliminary treatment of sewage means that the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D33/80B01D33/17B01D35/143
Inventor 李星文袁琳王晗周丽颖李子言
Owner THUNIP CORP LTD