As an industrial milling equipment, Raymond mill has a good application in many fields, such as the processing of asphalt powder. So how to use Raymond mill to process asphalt powder and control its fineness?
First of all, let's understand the basic structure and working principle of Raymond mill. Raymond mill is a vertical mill, which is mainly composed of a main engine, an analyzer, a pipeline device, a blower, a storage silo, a cyclone separator, a dust collector, etc. Its working principle is to use strong wind to blow the asphalt powder from the bottom of the main engine, classify it through the analyzer, return the coarse powder to the main engine for grinding, and the fine powder enters the cyclone separator and dust collector with the air flow for collection.
After understanding the basic structure and principle of Raymond mill, we can control the fineness of asphalt powder.
1.Control the feed size: The feed size of asphalt powder has a direct effect on the fineness. Generally speaking, the smaller the feed particle size, the finer the fineness of the asphalt powder. Therefore, in the production process, the particle size of the feed should be strictly controlled.
2.Adjust the speed of the analyzer: The analyzer is a key component in the Raymond mill to control the fineness. By adjusting the speed of the analyzer, the air velocity and the grading effect can be changed to control the fineness of the asphalt powder. In general, increasing the speed of the analyzer will increase the airflow velocity and better classification, but it will also increase the wear and tear of the equipment. Therefore, it is necessary to make appropriate adjustments according to the actual situation.
3.Adjust the air pressure: Wind pressure is another important factor affecting the fineness of asphalt powder. During the production process, by adjusting the air pressure of the blower, the air velocity and flow rate can be changed, so that the fineness of the asphalt powder can be controlled. It should be noted that excessive wind pressure may cause over-grading of asphalt powder, which in turn will affect the quality of the product. Therefore, it is necessary to make appropriate adjustments according to the actual situation.
4.Add grinding aids: When asphalt powder is ground in Raymond mill, it will be affected by friction, which is easy to produce electrostatic adsorption and agglomeration, resulting in coarse product fineness. In order to solve this problem, an appropriate amount of grinding aid can be added to reduce the friction and adsorption force between asphalt powders, so as to achieve the purpose of controlling fineness.
5.Regular maintenance of equipment: Raymond mill is a large mechanical equipment, and long-term use will lead to wear and tear of equipment. In order to ensure the normal operation of the equipment and the stable quality of the product, the equipment needs to be maintained and overhauled regularly. Especially for critical components such as analyzers, blowers, etc., regular inspection and maintenance are required to ensure their proper operation.
In conclusion, there are many aspects to be paid attention to when processing asphalt powder with Raymond mill and controlling its fineness. In the actual production process, it is necessary to make appropriate adjustments and controls according to the actual situation to ensure the quality and stability of the product. At the same time, it is also necessary to pay attention to the maintenance and overhaul of the equipment to prolong the service life of the equipment.