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Shanghai Zhikai Powder Machinery Manufacturing Co., Ltd
Structure and Principle of Laboratory Airflow Crusher
Date: 2024-07-29Read: 0
With the development of technology and economic progress, crushing technology has a wide range of applications in various fields. Crushing equipment is a multifunctional, efficient, and low-energy device whose main function is to crush materials from larger solids into the required particle size to meet the needs of production or subsequent biochemical reactions. At present, the airflow crusher has replaced traditional mechanical crushers and shredders, becoming an important equipment in the field of crushing technology.
The laboratory airflow pulverizer is a pulverization equipment designed and developed based on a new principle of airflow pulverization. Its basic structure is as follows:
1. Feed inlet: Place the material that needs to be crushed from here.
2. Internal diffuser: This diffuser evenly distributes the material to the internal nozzle.
3. Nozzle: With a large number of nozzles, it can evenly distribute materials into the crushing chamber.
4. Crushing chamber: Materials enter the crushing chamber through nozzles, where they are crushed and broken.
5. Classification sieve: Separate the crushed material into different grades of powder.
6. Discharge port: discharge powders of different grades from here.
The process principle of laboratory airflow crusher is to crush materials through high-speed airflow. Specifically, under the action of the diffuser, the material is evenly scattered onto the nozzle in the crushing chamber, and then sprayed downwards by high-speed airflow. At the same time, the material itself has kinetic energy and will form strong impact and shear forces with the high-speed airflow at the nozzle, causing the material to be crushed and crushed in a short period of time.
During the operation of the laboratory airflow crusher, it is necessary to control parameters such as airflow velocity, flow rate, and temperature. Specifically, in order to achieve the best crushing effect, it is necessary to coordinate and control the speed and temperature of the airflow at a certain material feeding rate. In the experiment, it was found that when the crushing effect is good, the gas flow rate is generally between 30-60 m/s. The gas flow rate can be controlled by adjusting the nozzle type or adjusting the gas flow rate. Meanwhile, a good airflow temperature also plays a crucial role in improving the crushing effect. Excessive temperature can cause turbulent flow inside the crushing chamber and reduce gas density, which is not conducive to the smooth crushing of materials. Conversely, excessively low temperature can cause excessive resistance and prevent materials from passing through the nozzle smoothly. Therefore, the laboratory airflow crusher not only needs to control the gas temperature well, but also has the possibility of adaptive temperature adjustment.
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