From 1906 to today, Raymond mill development than a century, was originally used as a coal grinding equipment Raymond mill , continuous development and innovation , has been widely used in various industries. we look over a hundred years Raymond mill history of the development , which has been constantly adapt to a variety of needs, but also because the process is simple, reasonable structure, easy maintenance , which is widely favored by the milling industry , Raymond mill in milling industry is essential.
The whole structure of Raymond mill is composed of a host machine, analysis, plumbing, air blower, finished cyclone separator, jaw crusher, bucket elevator, electromagnetic vibration feeder, electric motors and other components. The host is composed of a frame, Raymond mill inlet volute, blade, grinding, grinding ring, a cover casing and a motor.
The whole working process of Raymond Mill (the process of grinding material): the bulk materials by jaw crusher to desired size, by the elevator will be material to the hopper, the vibrating feeder evenly and quantitatively and continuously into the indoor host grinding grinding, grinding after the powder is fan airflow. Through the analysis of machine grading, fineness of powder will meet with the gas flow through the pipe into the large cyclone collector, were isolated and collected, then powder tube is finished powder. The airflow from large cyclone collector inhalation top return air duct blower. The air current of the whole system is a closed loop, and circulation in the flow of positive and negative pressure condition.
In the grinding chamber internal grinding material with certain water content, the grinding heat generated in grinding chamber gas evaporation changes the gas flow rate, and the pipeline connection is not tight outside the gas is inhaled, the circulating air volume increase, is this by adjusting the fan with the host legacy of pipe to flow balance, and the gas into the small cyclone collector excess, the fine powder gas into the collection down, then the cyclone collector upper exhaust pipe into the atmosphere, or into the dust collector with the exhaust gas purification.
The 65Mn: grinding ring in the use of this material, the durability is improved obviously. It is characterized by high hardness, good wear resistance, magnetic. Mainly used for product in powder processing of iron. The product after normalizing and tempering heat treatment, mechanical performance is improved greatly, make the product not only has good wear resistance, but also greatly improve the toughness.
The Mn13: compared with 65Mn, the grinding ring in the Mn13 material after casting, in life has changed. After the pouring of water toughening treatment. Water toughening treatment after casting with tensile strength, toughness, high plasticity and no magnetism. The grinding ring is more durable. Subject to severe shock and strong pressure deformation in the using process, surface hardening, and martensite formation, thus forming the wear surface layer high, while the inner layer to maintain excellent toughness, even wear very thin, can bear a larger impact load.
Raymond mill host another vulnerability is grinding roller, under normal circumstances, Raymond mill for grinding roller in use for some time, this according to customer's materials, frequency of use and other factors to determine whether the operation. To limestone as an example, if the same operating conditions, the quality of the grinding roller but hard, then there will be excessive wear, the service life is greatly reduced. As a result, mill roll material is also one of the most important factor in deciding the quality of equipment manufacturers of Raymond mill.
Impulse dust removal equipment is configured for loading, grinding, finished product transportation and storage, to ensure that the production site is clean and environmentally friendly, and there is no dust pollution.
After signing the order, formulate detailed plans for production, preparation and delivery, basic production, and engineer dispatch, installation and commissioning, to ensure that the entire link is carried out in an orderly and efficient manner, and the final delivery is guaranteed.
Recently, one of our customers consulted some problems of Raymond Mill. He said that the output of his original old equipment declined when producing stone powder, which serious affected the production efficiency.
The feeding speed of Raymond mill can not be too fast or too slow, too much material will affect the performance of equipment, and too little material leads to mill idling, thus seriously affecting the production capacity.
Damage to any part will have a greater impact on the final output. Thereforefan, grinding roller and other important parts should be checked on time to find the problem and solve in time to ensure the normal operation of the equipment.
Large material moisture is the main reason for the decrease of stone powder production, which not only increases the difficulty of milling, but also makes the materials easier to plug the powder channel, thus leading to unsmooth work of grinding mill and resulting in a decline in production capacity.
Raymond Mill mainly achieves the grinding process replying on grinding roller and ring. If the damage is serious, then the material will not be ground to the user's desired fineness, and will continue to cycle in the mill, resulting in a decline in production.