Analysis of key factors affecting the quality of powder making equipment for powder making

In the field of powder making, many kinds of equipments work together to realize the production of high quality powder, among which the performance and operating conditions of extruders, cooling belts, mills and mixers have a vital influence on the quality of the final powder.

Looking first at the extruder, the design and speed of the screw is the key factor. Different screw configurations and pitches affect the plasticizing and extruding effect of the material. If the screw design is not reasonable or the rotational speed is not appropriate, it may lead to uneven mixing of materials and affect the quality of subsequent powder making.

The pressure size and speed of the cooling belt directly affect the molding effect of the powder. Pressure is too small, the powder is difficult to compact, may lead to loose, fragile; pressure is too large may make the powder excessive compression, internal stress, affecting the subsequent crushing effect. Pressing speed is too fast, which may cause uneven pressure distribution.

The mill plays a key role in the powder making process. The mill roller spacing, rotational speed, and the shape and arrangement of the grinding teeth of the mill all determine the particle size and uniformity of the crushing. Inappropriate spacing, unstable rotational speed or worn grinding teeth will make the powder particle size not meet the requirements or the range of particle size distribution is too large.

The mixing method and time of the mixer have a significant effect on the uniformity of the powder. A single mixing method or insufficient mixing time will lead to uneven mixing of raw materials, which will make the final powder composition inconsistent and affect its performance and quality.

In addition, the maintenance and repair of the equipment should not be ignored. For example, whether the heating device of the extruder is working properly, whether the mold of the tablet press is worn out, whether the grinding roller of the mill needs to be replaced, and whether the mixing paddle of the mixer is deformed. Wear and failure of equipment will directly affect the quality and efficiency of powder making.

The characteristics of raw materials are equally important. Different raw materials have differences in hardness, humidity, particle size and composition. For these different characteristics of raw materials, the parameters of the above equipment settings and operating methods also need to be adjusted accordingly.

The skill and experience of the operator is also a factor. Skilled operators can accurately adjust the parameters according to the characteristics of the raw materials and equipment operating conditions, and find and solve problems in time, so as to ensure the stability of the quality of powder making.

In summary, extruder, tablet press, milling machine and mixer and other equipment in the powder powder making process cooperate with each other, and their performance, operating parameters, maintenance conditions and the level of operators and other factors jointly affect the quality of powder making. Only comprehensive consideration and optimization of these factors can produce high quality powder products.