Common problems and solutions of powder mixing equipment

Powder mixing equipment is widely used in pharmaceutical, food, ceramics, metallurgy and other industries, but in the process of use, it may encounter some problems. This article will list some common powder mixing equipment problems, and give the corresponding solutions.

一、Mixing is not uniform

Uneven mixing is one of the most common problems in powder mixing equipment. This may be due to insufficient mixing time, excessive equipment capacity, or unreasonable equipment design. Solutions include increasing mixing time, reducing equipment capacity, or improving equipment design. In addition, the reasonable choice of mixing method and mixing paddle is also the key. For powders of different properties, different mixing paddles and mixing methods should be used to ensure uniform mixing.

二、The equipment is blocked

Equipment clogging is usually due to powder adhering to the inner wall of the equipment or the mixing paddle, resulting in poor fluidity. In order to avoid clogging of the equipment, it is necessary to check the inner wall of the equipment and the mixing paddle regularly, and clean the residual powder in time. At the same time, it is also key to keep the humidity in the equipment appropriate and avoid the powder moisture absorption caking. In the production process, intermittent feeding can be used to reduce the possibility of equipment clogging.

三、Low efficiency

The inefficiency may be caused by unreasonable equipment design, excessive equipment capacity or too slow stirring paddle speed. Solutions include: improving the equipment design, reducing the equipment capacity or increasing the impeller speed. In addition, reasonable selection of operating parameters is also the key. Under the premise of ensuring the mixing quality, the mixing propeller speed and feed speed can be appropriately increased to reduce the mixing time and improve the equipment efficiency.

四、High energy consumption

High energy consumption may be caused by unreasonable equipment design or improper operating parameters. The solutions include: improving equipment design, improving energy conversion efficiency and mixing efficiency of equipment; Reasonable selection of operating parameters, on the premise of ensuring mixing quality, appropriate reduction of impeller speed and feed speed to reduce energy consumption. In addition, strengthening the maintenance and maintenance of the equipment is also key to maintain the good operation of the equipment.

五、Cross contamination

Cross pollution refers to the phenomenon that different materials pollute each other during the mixing process. In order to avoid cross-contamination, it is necessary to pay attention to the following points: First, the appropriate mixing container and mixing paddle should be selected to avoid the mutual penetration of different materials; Secondly, in the mixing process, the principle of first-in-first-out and last-in-first-out should be followed to avoid cross-contamination of different materials; Finally, the mixing container and mixing paddle should be cleaned regularly to ensure that they are clean and hygienic.

In short, powder mixing equipment may encounter a variety of problems during use. In order to ensure the normal operation and use of the equipment, it is necessary to strengthen the daily maintenance and maintenance of the equipment, and take appropriate solutions for specific problems. At the same time, the reasonable selection of operating parameters and mixing paddle is also the key to improve the mixing quality and efficiency of the equipment.