Types and introduction of mixers

Changzhou Chuangke drying and pelletizing equipment Co., Ltd is a key enterprise in China's drying industry, specializing in the production of dryer, pelletizer, chemical equipment and pharmaceutical equipment It is the first factory in the industry to pass the ISO9001 international quality system certification, a member of China's drying industry, a member of China's pharmaceutical equipment, and a contract abiding and trustworthy enterprise The factory covers an area of more than 20000 square meters, a building area of more than 10000 square meters, fixed assets of more than 12 million yuan, strong technical force, adopts CAD design, has modern large workshops, and strictly follows the modern enterprise system management With an annual output of more than 1500 sets of drying equipment, pelletizer, mixer, etc., it has 28 categories of system drying equipment and more than 280 specifications and varieties, which are widely used in pharmaceutical, chemical, food and other industries For many major national projects and research institutes supporting drying equipment Liu Jianwei, the founder of the company, has been committed to the scientific research and development of drying equipment and pelletizing equipment as well as business management in the past decade The company attaches great importance to scientific and technological innovation and always believes that science and technology is * productivity Cooperate with relevant domestic research institutes to develop new products, absorb and digest advanced drying and granulating equipment at home and abroad, so as to meet the needs of modern enterprise production The factory has a complete laboratory We welcome overseas customers to carry out material test and order Our products are well-known all over the country for their excellent production, complete variety and high technical content "Chuangke" brand drying equipment has become a number of user brands and products in China Sincerely cooperate with new and old customers at home and abroad to create brilliant future in the new century! The commonly used mixers are divided into four categories: gas and low viscosity liquid mixers, medium and high viscosity liquid and paste mixers, thermoplastic material mixers, powder and granular solid material mixers The mixer is characterized by simple structure, no rotating parts, small maintenance and low energy consumption This kind of mixing machine can be divided into four types: air mixing, pipe mixing, jet mixing and forced circulation mixing In the paste mixing machine, the high viscosity liquid and paste mixing machine generally have strong shear effect Thermoplastic material mixing machinery thermoplastic material mixing machinery is mainly used for mixing thermoplastic materials (such as rubber and plastic) with additives; powder and granular solid material mixing machinery is mostly intermittent operation, but also includes machinery with mixing and grinding functions, such as wheel rolling machine During mixing, all materials involved in mixing shall be evenly distributed The degree of mixing can be divided into three states: ideal mixing, random mixing and completely immiscible The mixing degree of various materials in the mixing machine depends on the proportion, physical state and characteristics of the materials to be mixed, as well as the type of mixing machine used and the duration of mixing operation The mixing of liquid mainly depends on the mechanical stirrer, air flow and jet of the liquid to be mixed, so that the materials to be mixed are stirred to achieve uniform mixing The agitation causes part of the liquid to flow, and the flowing liquid pushes the liquid around it As a result, a circulating liquid flow is formed in the dissolver The diffusion between the liquid generated is called the main convection diffusion When the liquid flow velocity caused by agitation is very high, there is shear effect on the interface between the high-speed liquid flow and the surrounding low-speed liquid flow, resulting in a large number of local vortices These vortices spread rapidly around, and then more liquid is brought into the vortex The turbulent convection diffusion formed in a small range is called eddy diffusion The moving parts of the mechanical agitator will also shear the liquid when rotating When the liquid flows through the wall of the agitator and various fixed components installed in the container, it will also be subject to shear These shear effects will cause many local eddy diffusion For the liquid with different density, different composition and immiscible with each other, the shear effect and strong turbulence caused by agitation will tear the liquid with high density into small droplets and make them evenly dispersed into the main liquid The flow velocity of the liquid produced by stirring must be greater than the settling velocity of the liquid drop The mixing mechanism of a small amount of insoluble powder solid and liquid in the solid material mixing machine is different from that of density component, and the mixing mechanism of insoluble liquid is the same, except that the particle size of powder solid cannot be changed by mixing If the settling velocity of the solid particles before mixing is not smaller than the flow velocity of the liquid, no matter what kind of mixing method is used, the suspension will not form uniform The mixing of different pastes is mainly to divide the materials to be mixed repeatedly and make them subject to the strong shear effect caused by pressing, rolling, squeezing and other actions, and then through repeated combination and kneading, Zui can reach the required mixing degree This kind of mixing is difficult to achieve ideal mixing, only random mixing can be achieved The powder solid mixed with a small amount of liquid is paste, and its mixing mechanism is the same as that of paste material Different thermoplastic materials and the mixing of thermoplastic materials with a small amount of powdery solid need to rely on strong shear, knead and knead repeatedly to achieve random mixing Common mixers include: horizontal pear knife mixer, double screw belt mixer, double planet mixer, horizontal gravity free mixer, V-type mixer, double screw cone mixer, dry powder mixer, planetary power mixer, etc.