Graded filtering method for raw lacquer
A technology of graded filtration and filtration method, which is applied in the direction of separation method, filtration separation, chemical instruments and methods, etc., which can solve the problems of high labor intensity, poor filtration effect, and unevenness, and achieve improved performance and adhesion, and low labor intensity , the effect of a large amount of filtration
Inactive Publication Date: 2020-02-28
陕西卓萌商贸有限责任公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide a raw lacquer classification filtration method to solve the above-mentioned existing raw lacquer filtration method with low efficiency, high labor intensity, poor filtering effect, easy to produce graininess and unevenness on the surface of the paint, and complicated cleaning of filtering equipment.
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Embodiment 1
[0020] This embodiment provides a grading filtration method for raw lacquer. The raw lacquer can be untreated raw lacquer or diluted raw lacquer. The specific filtration method can be divided into the following steps: In the first step, use a bag filter to The filter bag is used to filter the raw lacquer, and the pressure during filtration is controlled at 0.15MPa; the second step is to replace the bag filter with a 150-mesh filter bag, and then use the bag filter to filter the raw lacquer filtered in the first step; the third step , replace the bag filter with a 300-mesh filter bag, and then use the bag filter to filter the raw lacquer filtered in the second step; the fourth step, replace the bag filter with a 600-mesh filter bag, and then filter the raw varnish after the third step The raw lacquer is filtered using a bag filter; in the fifth step, the bag filter is replaced with a 1250-purpose filter bag, and the raw lacquer filtered in the fourth step is finally filtered usi...
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The invention provides a graded filtering method for raw lacquer. Bag type filtering equipment is used for five-stage filtration of the raw lacquer; a 60-mesh screen is used for first-stage filtration; a 150-mesh screen is used for second-stage filtration; a 300-mesh screen is used for third-stage filtration; a 600-mesh screen is used for fourth-stage filtration; a 1250-mesh screen is used for fifth-stage filtration; the filtering precision of the raw lacquer can reach 1250 meshes; impurities in raw lacquer liquid are controlled to be below 10 microns, and the performance and adhesive force ofthe raw lacquer are greatly improved; and the bag type filtering equipment is easy and convenient to clean, low in labor intensity and large in filtering amount, and allows the filtering effect of the raw lacquer to reach the international first-class level.
Description
technical field [0001] The invention relates to the field of paint preparation, in particular to a raw lacquer classification filtration method. Background technique [0002] Raw lacquer is a natural product, and impurities such as bark, leaves, and dust will inevitably be produced during the harvesting process. If these impurities are not filtered out, it will seriously affect the spraying and brushing effect of the paint, resulting in a grainy surface of the sprayed or brushed paint , uneven. [0003] Raw lacquer fine filtration has always been a problem in the industry. In my country, the traditional filtration method is generally to use filter cloth and gallows to filter manually. This filtration method has extremely low filtration efficiency and is labor-intensive. In recent years, Japan has begun to use centrifuge filtration. , although this method has low labor intensity, the filtration efficiency is still not high, and the filtration effect is poor, and the cleaning ...
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IPC IPC(8): B01D35/00
CPCB01D35/00
Inventor 任卓萌
Owner 陕西卓萌商贸有限责任公司