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Preparation method of activated carbon filter element for engine oil purification

An activated carbon filter element and activated carbon technology, applied in chemical instruments and methods, separation methods, filtration and separation, etc., can solve the problems of small filtration fineness, small dirt holding capacity, and poor filtration effect

Active Publication Date: 2021-04-20
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, commonly used filters are mainly paper filter elements, fabric filter elements, and wood fiber filter elements. At the same time, some filter elements such as fabric filter elements and wood fiber filter elements are mainly filled by hand, which is time-consuming to make, and it is difficult to realize automation and large-scale production, and the overall use effect is not ideal

Method used

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  • Preparation method of activated carbon filter element for engine oil purification

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preparation example Construction

[0018] A preparation method of an activated carbon filter element for engine oil purification: quickly stir and evenly mix activated carbon with polyether polyurethane glue (main glue, Jiangsu Chemical Industry Research Institute Co., Ltd.) according to a certain mass ratio, and then add MDI (diphenylmethane di Isocyanate) curing agent is further mixed, stirred and glued, and then poured into the forming mold to make it evenly filled, and matured and formed at a certain temperature.

[0019] Further, the activated carbon is spherical activated carbon with a particle size of 1-3mm;

[0020] Further, the adhesive is polyether polyurethane glue (main glue) and MDI curing agent, the mass ratio of the two is 1:(0.8~1);

[0021] Further, the mass ratio of the activated carbon to the adhesive (polyether polyurethane glue and MDI curing agent) is (3~6):1;

[0022] Further, the aging temperature is 60-140°C;

[0023] Further, the aging time is 1-3 hours.

Embodiment 1

[0025] Spherical activated carbon with a particle size of 1 mm was acid-washed and washed with water, and then dried at 110°C for use; 5 g of polyether polyurethane glue (main glue, Jiangsu Provincial Chemical Research Institute Co., Ltd.) was added to 40 g of spherical activated carbon, and then stirred quickly and uniformly. Mixing; after that, add 5g of MDI curing agent for further stirring, mixing, and gluing; after gluing, pour the mixture into the molding mold at room temperature to make it evenly filled; then place it in a temperature-controlled oven at 80°C After aging for 2 hours, the mold was removed to obtain an activated carbon filter element, which was coded as AC-1.

Embodiment 2

[0027] Spherical activated carbon with a particle size of 2 mm was acid-washed and washed with water, and then dried at 110°C for use; 5 g of polyether polyurethane glue (main rubber, Jiangsu Provincial Chemical Research Institute Co., Ltd.) was added to 40 g of spherical activated carbon, and then stirred quickly and evenly Mixing; after that, add 5g of MDI curing agent for further stirring, mixing, and gluing; after gluing, pour the mixture into the molding mold at room temperature to make it evenly filled; then place it in a temperature-controlled oven at 120°C After aging for 2.5 hours, the mold was removed to obtain an activated carbon filter element, which was coded as AC-2.

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Abstract

The invention discloses an activated carbon filter element for engine oil purification and a preparation method of the activated carbon filter element. The filter element is made into a cylinder by gluing, forming, curing and other processes through activated carbon and an adhesive, and the cylinder is placed in a filter to be used. The method comprises the following steps: uniformly mixing the activated carbon with the polyether polyurethane adhesive, quickly conducting stirring, adding an MDI curing agent, further conducting stirring, mixing and gluing, pouring the formed substance into a forming mold, achieving uniform filling, and conducting curing and molding. Impurities in engine oil can be adsorbed and filtered by utilizing the strong adsorption and filtration effects of the activated carbon, the dirt capacity is large, the filtration effect is good, the impurities in the engine oil are effectively reduced, engine abrasion is reduced, the service life of the engine oil is prolonged, and energy conservation and consumption reduction are achieved; and meanwhile, through gluing and mold molding, the filter element can be matched with various filters, the permeability is good, the pressure drop is small, the engine oil liquidity is good, the manufacturing process is simple, industrial, automatic and standardized production can be achieved conveniently, and the quality of the filter element can be controlled easily.

Description

technical field [0001] The invention belongs to the fields of activated carbon material application and engine oil filtration, and in particular relates to an activated carbon filter element for engine oil purification and a preparation method thereof. Background technique [0002] In order to reduce the frictional resistance between the moving parts of the engine and reduce the wear of the parts, the engine oil needs to be continuously delivered to the surface of each moving part to form a lubricating oil film for lubrication. With the continuous operation of the engine, substances such as carbon deposits, metal wear debris and dust in the air generated during work will be mixed into the engine oil, resulting in an increase in the impurity content of the engine oil; at the same time, the engine oil is constantly being oxidized and Decomposition produces gums and other decomposition products, resulting in changes in the quality of the oil. Therefore, it is necessary to filt...

Claims

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Application Information

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IPC IPC(8): B01D39/20
Inventor 卢辛成孙康蒋剑春赵剑卫民徐茹婷张燕萍
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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