Preparation method of professional molecular sieve desiccant for brake system

A brake system and molecular sieve technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of large size and quality differences of formed particles, limited natural zeolite resources, high cost, etc., and achieve good wear rate and high adsorption capacity. High, dimensionally stable effect

Pending Publication Date: 2020-12-11
上海航中实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned existing technical solutions have the following defects: the above-mentioned molecular sieve uses natural zeolite as a raw material. Firstly, 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. Finally, the molecular sieve produced 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

Method used

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  • Preparation method of professional molecular sieve desiccant for brake system
  • Preparation method of professional molecular sieve desiccant for brake system
  • Preparation method of professional molecular sieve desiccant for brake system

Examples

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Effect test

Embodiment 1

[0054] refer to figure 1 , the equipment required for the preparation of a professional molecular sieve desiccant for a brake system disclosed in the present application, including a premixing device 1, which includes a three-layer structure bracket 11, a premixing mechanism 12, a compression mechanism 13, a crushing Mechanism 14 and ball milling mechanism 15, the support 11 is formed with the first placement layer 111, the second placement layer 112 and the third placement layer 113 from bottom to top; Communication; the compression mechanism 13 is fixedly connected to the second placement layer 112 and communicates with the crushing mechanism 14; the crushing mechanism 14 is fixedly connected to the first placement layer 111 and can communicate with the ball mill mechanism 15; the ball mill mechanism 15 is arranged on the ground, and the ball mill mechanism 15 is a planetary ball mill.

[0055] refer to figure 1 and figure 2 , the pre-mixing mechanism 12 includes a mixin...

Embodiment 2

[0082] The difference between Example 2 and Example 1 is: step 1.1, raw material pretreatment: select kaolin with a SiO2 / Al2O3 molar ratio of 2.08 for crushing treatment, and use a 600-mesh sieve to sieve kaolin with a fineness of 23 μm.

Embodiment 3

[0084]The difference between Example 3 and Example 1 is: step 1.1, raw material pretreatment: select kaolin with a SiO2 / Al2O3 molar ratio of 2.08 for crushing, and use a 1340-mesh sieve to sieve kaolin with a fineness of 10 μm.

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Abstract

The invention belongs to the technical field of molecular sieves, and particularly relates to a preparation method of a professional molecular sieve desiccant for a brake system, which comprises the following steps of: preparation of synthetic zeolite raw powder; uniform mixing of the raw materials: feeding the synthetic zeolite and an adhesive into a premixing device according to a ratio for mixing; ball rolling treatment: performing vibration screening, performing secondary ball rolling operation, and adding 2-6wt% of an inorganic silicon solvent in the secondary ball rolling process; drying: controlling the humidity of a molecular sieve to be 20-40% of the total weight of the molecular sieve; roasting: feeding the dried molecular sieve into a roasting furnace, and roasting for 30-120 minutes at the temperature of 200-850 DEG C; screening and heat dissipation: performing screening and heat dissipation treatment on the molecular sieve obtained by roasting; and vacuum treatment, packaging and warehousing. According to the method, the synthetic zeolite raw powder is used as the raw material, so that the cost is lower, and the finished molecular sieve is uniform in size and quality,and has better adsorption capacity and lower wear rate.

Description

technical field [0001] The application relates to the technical field of molecular sieve production, in particular to a method for preparing a professional molecular sieve desiccant for brake systems. 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 of different molecular sizes and different boiling points are separated, that is, they have the function of "sieving" molecules, so they are called molecular sieves. At present, molecular sieves are widely used in the fields of automobiles, architectura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/18B01J20/30
CPCB01J20/183
Inventor 顾晓明
Owner 上海航中实业有限公司
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