An environment-friendly oyster calcium powder drying-free granulation device and its process

Abstract

The invention discloses an environment-friendly drying-free granulation device and method for oyster calcium powder, which belong to the field of agriculture. The assembly is located on the upper surface of the granulation mold and can rotate along its central axis. There is a granulation through hole at the corresponding position of the granulation mold and the pressure roller assembly; the grinding assembly is installed outside the circumference of the pressure roller assembly under the shell And it can rotate along the axial direction of the pressure roller assembly. A feed pipe is fixedly installed on the lower surface of the shell, and the discharge port of the feed pipe is located at the edge of the lower surface of the shell. The beneficial effects of the present invention are: the two functions of grinding and granulation are combined in the same equipment, and a grinding and mixing is carried out before granulation, which simplifies the equipment and process and reduces the cost; especially the pressure roller assembly Designed as a disc-shaped structure, the grinding components are evenly distributed on the roller assembly along the outer circumferential direction, which not only saves space, but also improves the grinding and mixing efficiency of oyster calcium powder.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to an environment-friendly drying-free granulation device for oyster calcium powder and a process thereof. Background technique [0002] In the existing granulation process, the oyster calcium powder needs to be dried in a drying cylinder after being granulated to keep it granular during storage and transportation. The drying process needs to consume a lot of fuel, and the drying fuel is burned During the process, there is exhaust gas emission, which pollutes the environment. [0003] For example, Zhang Deli of Guangdong Ocean University and others designed a new type of oyster calcium powder based on the physical characteristics and shape characteristics of oyster calcium powder after cleaning and coarsely crushing discarded oyster shells, using a new type of hollow shaft helical blade and a composite heating method for drying. The overall structure of powder drying equipment, and its k...

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Problems solved by technology

[0004] Aiming at the problems in the prior art of oyster calcium powder granulation such as drying waste of a large amount of fuel and tail gas emissions, the present invention aims to provide an environment-friendly drying-free granulation device and method for oyster calcium powder. Dry granulation is one-time molding, adding magnesium sulfate monohydrate to oyster calcium powder. After granulation and molding, since magnesium sulfate monohydrate meets water, it is an exothermic process, and the heat released can reduce the moisture in the granulated product. Evaporation eliminates the drying process and solves the exhaust pollution problem caused by fuel combustion during the drying process

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