Molecular sieve of commercial vehicle brake system and preparation method thereof

Abstract

The invention relates to a molecular sieve of a commercial vehicle brake system and a preparation method thereof, which belong to the technical field of molecular sieve production, and has the technical key points that the molecular sieve of the commercial vehicle brake system comprises synthetic zeolite and at least one adhesive. The adhesive is selected from kaolin and / or attapulgite. The preparation method comprises the following operation steps of: mixing the synthetic zeolite with the adhesive, conducting ball rolling treatment through a ball rolling machine, the rotating speed of the ball rolling machine being 30-120 revolutions per minute, conducting screening through a vibrating screen, and selecting 8-12 meshes for screen cloth, carrying out drying treatment on the molecular sieveat the temperature of 60-120 DEG C by using a dryer, then baking the dried molecular sieve in a baking furnace at the temperature of 200 to 850 DEG C for 30 to 120 minutes, and screening the baked molecular sieve, carrying out heat dissipation treatment, packaging, warehousing, and naturally cooling to room temperature in the sealed storage process. The finished molecular sieve is uniform in sizeand mass, and meanwhile the prepared molecular sieve has the advantages of being high in adsorption capacity, adjustable in stacking density, good in friction rate and the like.

Description

technical field [0001] The invention belongs to the technical field of molecular sieve production, and more specifically relates to a molecular sieve for a commercial vehicle braking system and a preparation method thereof. Background technique [0002] Molecular sieves are crystalline silicates or aluminosilicates, which are formed by connecting silicon-oxygen tetrahedrons or aluminum-oxygen tetrahedrons through oxygen bridges. Molecular sieves have a uniform microporous structure, and their pore diameters are uniform. These pores can adsorb molecules smaller than their diameters into the interior of the cavity, and have a preferential adsorption capacity for polar molecules and unsaturated molecules, so they can absorb polar molecules. Molecules with different degrees of solubility, degrees of saturation, molecular sizes and boiling points are separated, that is, they have the function of "sieving" molecules, so they are called molecular sieves. At present, molecular siev...

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Problems solved by technology

[0006] The above-mentioned existing technical solutions have the following defects: the above-mentioned molecular sieve uses natural zeolite as raw material. Firstly, the natural zeolite not only has limited resources of natural zeolite, but also has high cost and low yield, and the particle size and shape of natural zeolite are different. The molecular sieve finally obtained There is a large difference in the size and quality of the shaped particles, so a new technical solution needs to be proposed to solve the above problems

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