Calcium carbonate powder surface modification equipment

Abstract

The invention belongs to the field of production and processing of powder materials and in particular relates to calcium carbonate powder surface modification equipment. The calcium carbonate powder surface modification equipment comprises a calcium carbonate powder mixing, stirring and conveying device, a calcium carbonate powder surface coating device and a wind energy filtering and material collecting device which are sequentially connected; the calcium carbonate powder mixing, stirring and conveying device is used for uniformly mixing calcium carbonate powder with different particle sizes and conveying to the calcium carbonate powder surface coating device, the calcium carbonate powder surface coating device is used for spraying liquid-state organic matter onto calcium carbonate powder and stirring by adopting a high speed mixer, so that the organic matter is fully coated on the surface of calcium carbonate; the wind energy filtering and material collecting device is used for pumping out materials in the high speed mixer by utilizing a fan, filtering out the calcium carbonate powder in air flow by adopting a dust remover and collecting the calcium carbonate powder. The calcium carbonate powder surface modification equipment has the advantages that multiple feeding holes are formed, a feed pump used for regulating feeding rate is arranged at the feeding holes, and different materials can be mixed in specific ratio in a conveying process; and a ball head is arranged at the top end of a stirring rod, inertia force of a stirring device can be effectively increased, energy sources can be greatly saved, and the ball head also can increase contact area between the stirring rod and the calcium carbonate powder, so that stirring is more sufficient.

Description

technical field [0001] The invention belongs to the field of powder material production and processing, and in particular relates to a calcium carbonate powder surface modification device. Background technique [0002] Calcium carbonate powder is mainly used as a filler for plastic, rubber and other products. Properly mixing calcium carbonate powder into the above materials can greatly reduce production costs. However, since calcium carbonate itself is a solid inorganic substance, it does not have any viscosity and the adhesion is very small. If the calcium carbonate powder is directly mixed with the above-mentioned organic materials, the calcium carbonate particles cannot be tightly bonded to the organic materials. Therefore, the calcium carbonate powder Must be coated before use as a filler. The so-called coating is to coat each calcium carbonate particle with a layer of organic matter. The organic matter is collectively called coating agent, and its specific composition ...

AI Technical Summary

Problems solved by technology

In order to adapt to different application requirements, the hardness of the filled material can be controlled by controlling the ratio of calcium carbonate with different particle sizes during the production process, which requires mixing calcium carbonate powders with different particle sizes in a specific proportion during the production process. There is no better production method in the prior art, and the calcium carbonate powder can only be weighed, then mixed according to the proportion, and then proceed to the next step of production. This process requires the use of large-scale handling machinery, which is time-consuming and laborious, and seriously affects production efficiency.

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