Powder material multistage dry-method modification system

Abstract

The invention discloses a powder material multistage dry-method modification system comprising a powder material storage tank (1), a high-pressure fan (2), a heater (3), a boiling drying tower (4), a cyclone separator (5), a dry powder storage tank (6), a powder material metering feeder (9), a modifying agent storage tank (10), a modifying agent metering feeder (11), a modification machine (12), and a finished product storage tank (13). The powder material storage tank (1) is sequentially connected to the high-pressure fan (2), the heater (3), and the boiling drying tower (4). The boiling drying tower (4) is connected with the dry powder storage tank (6) through the cyclone separator (5). The dry powder storage tank (6) and the modifying agent storage tank (10) are respectively connected to the feeding port of the modification machine (12). The system provided by the invention has the advantages that: with the system, pollution to the environment caused by powder material modification processing is eliminated; operator labor intensity is reduced; processing quality is stable and homogeneous; and modification is continuous modification, such that production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of powder material modification devices, in particular to a multi-stage dry modification system for powder materials. Background technique [0002] When powder materials are used in polymer materials such as rubber and plastic, they must be modified first. Modification methods can be divided into two categories: dry method and wet method, among which dry method is the most commonly used method. Dry mechanochemical modification refers to the large amount of mechanical energy applied in the process of mechanical pulverization. In addition to being consumed in particle refinement, part of it is used to change the crystal lattice and surface structure of particles, thereby showing the characteristics of improved activity and enhanced interphase reaction ability. Mechanical activation phenomenon. The changes in the physical structure and physicochemical properties of particles caused by mechanical force are cal...

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Problems solved by technology

However, the existing modification machine only has the function of stirring the mixed powder material and the modification machine, which cannot guarantee the dryness of the powder and the temperature of the stirred powder and the modification machine, so the processing process is difficult to control. The quality is difficult to guarantee; and the existing modifiers are all open structures. During processing, powder materials and modifiers are loaded into the modifier at one time. The labor intensity of the operators is high, and the dust pollution in the workshop is serious, which affects the operators. good health

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