Aeration disc and preparation method thereof

An aeration pan and microwave curing technology, which is applied in water aeration, chemical instruments and methods, water treatment parameter control, etc., can solve the problems of limited improvement of the compressive strength of the aeration pan and long curing time, and shorten the curing time. Time, improve production efficiency, improve the effect of compressive strength

Inactive Publication Date: 2020-05-15
RENCHSAND ECO ENVIRONMENT PROTECTION SCI & TECH CO LTD
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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 overcome the disadvantages of long curing time and limited improvement of the compressive strength of the aeration disc when an oven is used to solidify the rough embryo of the aeration disc in the existing preparation method of the aeration disc, thereby providing an aeration disc Gas tray and preparation method thereof

Method used

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  • Aeration disc and preparation method thereof
  • Aeration disc and preparation method thereof

Examples

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Embodiment 1

[0038] This embodiment provides a method for preparing an aeration tray, comprising the following steps:

[0039] 1) Add 0.8kg of ethylenediamine to 5kg bisphenol A type modified epoxy resin (epoxy value is 0.09-0.14mol / 100g, weight average molecular weight is 500), to obtain glue (the first mixed material);

[0040] 2) adding the glue solution to 100 kg of silica sand with a particle diameter of 0.06 mm, stirring and mixing evenly to obtain the second mixed material;

[0041] 3) Add the second mixed material into a steel mold, use a hydraulic press with a model number of YAW4605, pressurize the second mixed material at 20°C, and pressurize the second mixed material at a pressure of 3000N / cm 2 , the pressurization time is 1min, and then the pressure is removed to obtain the rough embryo of the aeration disc;

[0042] 4) Perform microwave curing on the rough embryo of the aeration disc. The microwave curing temperature is 130° C., and the microwave curing time is 8 minutes. Af...

Embodiment 2

[0044] This embodiment provides a method for preparing an aeration tray, comprising the following steps:

[0045] 1) Add 1kg of methylol ethylenediamine to 7kg bisphenol A type modified epoxy resin (epoxy value 0.09-0.14mol / 100g, weight-average molecular weight is 500), to obtain glue (the first mixed material );

[0046] 2) Add the glue solution to 100 kg of silica sand with a particle diameter of 1.2 mm, stir and mix evenly to obtain the second mixed material;

[0047] 3) Add the second mixed material into a steel mold, use a hydraulic press with a model number of YAW4605, pressurize the second mixed material at 20°C, and pressurize the second mixed material at a pressure of 3000N / cm 2 , the pressurization time is 1min, and then the pressure is removed to obtain the rough embryo of the aeration disc;

[0048] 4) Perform microwave curing on the rough embryo of the aeration disc, the microwave curing temperature is 140° C., the microwave curing time is 3 minutes, and the mol...

Embodiment 3

[0050] This embodiment provides a method for preparing an aeration tray, comprising the following steps:

[0051] 1) Add 2kg of hydroxyethylethylenediamine to 1kg of modified acrylic resin to obtain glue (the first mixed material);

[0052] 2) adding the glue solution to 100 kg of river sand with a particle diameter of 1.2 mm, stirring and mixing evenly to obtain the second mixed material;

[0053] 3) Add the second mixed material into a steel mold, use a hydraulic press with a model number of YAW4605, pressurize the second mixed material at 20°C, and pressurize the second mixed material at a pressure of 2000N / cm 2 , the pressurization time is 5 minutes, and then the pressure is removed to obtain the rough embryo of the aeration disc;

[0054] 4) Perform microwave curing on the rough embryo of the aeration disc. The microwave curing temperature is 80° C., and the microwave curing time is 20 minutes. After microwave curing, the mold is removed to obtain the aeration disc.

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Abstract

The invention relates to the field of water treatment, and concretely relates to an aeration disc and a preparation method thereof. The preparation method of the aeration disc comprises the step of carrying out microwave curing on an aeration disc crude blank at a microwave curing temperature of 80-150 DEG C for 3-20 min. The aeration disc crude blank is subjected to microwave curing at 80-150 DEGC for 3-20 min, so that the internal temperature and the external temperature of the aeration disc are basically consistent, the compressive strength of the aeration disc is remarkably improved, andcompared with drying oven curing, the microwave curing greatly shortens the curing time and greatly increases the production efficiency.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to an aeration pan and a preparation method thereof. Background technique [0002] Aeration pan, also known as gas-liquid mixer, is a tool used to increase the oxygen content of sewage in the water treatment process, and is widely used in the biochemical treatment process of industrial sewage and urban domestic sewage. With the development of industry and people's living standards, industrial sewage and urban domestic sewage have become important factors of water pollution, especially industrial sewage seriously threatens human safety and health. In order to make the sewage discharge effluent meet the relevant national discharge standards or be recycled as regenerated water resources, many companies have invested a lot of scientific research energy in wastewater treatment and reuse process equipment, especially the aeration pan of sewage biochemical treatment equipment. [0003] The ...

Claims

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Application Information

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IPC IPC(8): C02F7/00
CPCC02F7/00C02F2209/22Y02W10/10
Inventor 秦升益李张飞蔡小蓓
Owner RENCHSAND ECO ENVIRONMENT PROTECTION SCI & TECH CO LTD
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