The Advantages And Correct Maintenance Of Raymond Mill

The Advantages And Correct Maintenance Of Raymond Mill

Raymond Mill is a fine powder milling equipment suitable for high-efficiency closed-circuit circulation in large, medium and small mines, chemical industry, building materials, metallurgy and other industries. The uniformity of the fineness of the various powders milled by the mill can reach 95% of the required fineness, which means that the sieve can reach 95%, and the R-type Raymond mill is a vertical structure and a complete set. Sexually strong from the fast material to the crushing to the finished powder, packaging, can be a self-contained production system.

Equipment advantage

Raymond Mill uses the advanced structure of its kind. This machine has higher efficiency, lower power consumption, smaller floor space and less one-time investment than ball mill. The grinding roller is tightly pressed on the grinding ring under the action of the centrifugal force, so the grinding roller and the grinding ring are not worn to a certain thickness and the yield and fineness of the finished product are not affected. It can be seen that the grinding ring and the grinding roller have a long replacement period, thereby kicking out the shortcomings of the replacement cycle of the wearing parts of the centrifugal pulverizer. The wind speed of the R-type Raymond mill is circulating in the fan-grinding-cyclone-fan, so the centrifugal pulverizer has less dust, the operation workshop is clean, the environment is non-polluting, and it can fully meet the national dust emission standards.

Raymond mill equipment use

This machine is widely used in barite, calcite, potassium feldspar, talc, marble, limestone, dolomite, fluorite, lime, activated clay, activated carbon, bentonite, kaolin, cement, phosphate rock, gypsum, glass, insulation material. High-fine powder processing of more than 300 materials such as non-flammable and explosive minerals, chemicals, construction and other industries with a Mohs hardness of not more than 7 grades and a humidity of 6% or less. The R-type Raymond mill has a finished grain size of 80- Any adjustment within 325 mesh range, some materials up to 600 mesh.

Raymond mill works

The structure of the machine is mainly composed of a main machine, an analyzer, a fan, a finished cyclone separator, a fine powder cyclone separator and a duct. Among them, the main body is composed of a frame, an inlet volute, a blade, a grinding roller, a grinding ring and a cover.

During work, the material to be pulverized is fed into the machine from the feeding hopper on the side of the hood, and is revolved around the vertical axis by means of a grinding roller device suspended on the main stand of the main machine, while rotating itself, due to the centrifugal force during rotation, The grinding roller swings outward, pressing against the grinding ring, so that the blade shovel the material to the grinding roller and the grinding ring, and the purpose of pulverizing the material is achieved by rolling rolling of the grinding roller.

Raymond mill maintenance and maintenance

  1. During the use of Raymond mill, there should be fixed personnel responsible for the care, the operator must have a certain level of technology. Before the installation of the mill, the operator must carry out the necessary technical training to understand the principle performance of the mill and familiar with the operating procedures.
  2. In order to make the Raymond mill normal, the equipment “safe operation system for equipment maintenance” should be established to ensure the long-term safe operation of the mill, and necessary maintenance tools as well as grease and corresponding accessories.
  3. After using the Raymond mill for a period of time, it should be repaired and repaired. At the same time, the wearing parts such as the grinding roller and the blade should be repaired and replaced. The grinding roller device should be carefully checked before and after use to see if it is checked. There is looseness and the grease is added.
  4. When the grinding roller device is used for more than 500 hours to replace the grinding roller, the rolling bearings in the roller sleeve must be cleaned, and the damaged parts should be replaced in time. The fueling tool can be manually pumped and greased.
  5. Grinding roller bearings are refueled once per shift. The main center bearings are added once every 4 shifts, and the blower bearings are added once a month. The maximum temperature rise of the bearing shall not exceed 70 °C. When the bearing is overheated, the accessories such as the cleaning bearing and the bearing chamber shall be removed and cleaned once.
  6. When stopping, stop feeding, the main machine continues to rotate, and the residual material continues to be ground. After about one minute, the main motor can be turned off, the grinding operation is stopped, and then the fan motor and the analyzer motor are stopped.