Product Overview
Squeezing granulation is a relatively new dry granulation process for producing composite fertilizers. Squeezing granulation has long been used in the field of fertilizers for the granulation of potassium chloride. The granular (1-4mm) potassium chloride required for blending fertilizers (BB fertilizers) is mostly produced by extrusion method. In recent years, the use of extrusion granulation in the production of compound fertilizers has achieved rapid development in China
There are two forms of extrusion granulation: roller extrusion and wheel rolling. Roller extrusion first presses into large pieces and then breaks them into particles. This device has high capacity, high particle strength, and low energy consumption. Rollerextrusion is widely used abroad. Wheel rolling is the process of directly shaping the surface of a roller into a grooved shape, and extruding it into formed particles in one go. When the product strength is low, it is sometimes necessary to add a binder. Suitable for making granular fertilizers such as organic and compound fertilizers
Working principle
The process principle of roller extrusion granulation is that dry materials aggregate into dense and hard large blocks (cake materials) under pressure, which is called the extrusion process; The process of crushing and screening the cake material into pellets is called granulation. The function of squeezing is to squeeze out the air between particles, and to make the particle spacing close enough to generate attractive forces such as van der Waals forces, adsorption forces, crystal bridges, and embedded connections. The particle strength formed by squeezing granulation mainly relies on the intermolecular forces between molecules.

Technical specifications

Changzhou Zhihong Drying Technology Co., Ltd. is located in the economically developed center of the Yangtze River Delta, Zhenglu Town, Changzhou City. It borders Shanghai to the east and Nanjing to the west, and is situated at the intersection of Hengshan on the Shanghai Nanjing Expressway. It is more than ten miles away from Changzhou Airport and train station, and the transportation is very convenient. The company is a designated production enterprise in the pharmaceutical equipment industry, chemical equipment industry, and food machinery drying equipment industry in China. The company has 60 categories and more than 280 specifications of products, with an annual output of 500 sets of drying, granulation, mixing, crushing, concentration, and extraction equipment, and its products meet GMP requirements.

The company's main products include pharmaceutical machinery, chemical machinery, food machinery, pigment drying machinery, and other products. The products have now covered various markets across the country and are highly favored and praised by domestic users.

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