The general structure of Raymond Mill, according to its specific role, can be divided into six components, their name and role are as follows: ① roller: roller is the main working parts of roller-type Raymond Mill, its role with the same Stone grinding up and down the two discs similar to the material from the two roller through the grinding roller by grinding and was broken. ② transmission part: the transmission part of the main roller to provide work motivation, so that the two rollers to do the relative direction of the different speed of rotation, to ensure that the roller in accordance with a certain speed, speed roller to maintain a certain ratio. ③ Rolling distance adjustment structure: the radial distance between the two rollers is called the rolling distance. The lack of this body, Raymond Mill can not be with a variety of grain size of the grinding material to adapt, can not be changed according to process requirements at any time Raymond grinding grinding strength. The roller is tilted in the direction of the Raymond mill, the upper roller is a fast roll, its bearing is fixed on the shell of the Raymond mill, its position can not move, the lower roller is the slow roller, through its bearing device can be up and down Moving the bearing arm, the bearing arm is connected to the clearance adjustment mechanism by means of a spring, so that the position of the slow roll can be changed by the distance adjustment mechanism. Changing the radial distance between the two rollers to achieve a certain grinding effect is the main role of the rolling distance adjustment mechanism. ④ Feeding mechanism: The feeding mechanism plays an important role in the grinding effect of the roller. The feeding mechanism is located above the roller, which consists of the storage tube, the fighting rod, the feed roller and the feeding valve. The action is as follows: a) The abrasive is correctly fed into the grinding zone between the two rollers. B) to ensure that the material in the grinding area of the two rollers on the length of the uniform full, thick consistent. C) The feeding mechanism can adjust the flow rate of the grinding fluid at any time according to the change of production conditions. The working mechanism of the feeding mechanism should be closely matched with the clutch of the roller, the grinding roller is closed and the feeding mechanism rotates the feed: otherwise, the feeding is stopped. D) in the event of failure, can quickly loose, protect the grinding teeth. E) appropriate to limit the larger impurities into the grinding mouth, in order to maintain the safety of Raymond. ⑤ grinding roller cleaning mechanism: the cleaning mechanism installed in the bottom of the roller, the general use of a broom or scraper close to the surface of the roller to remove the powder attached to the surface of the powder, to maintain the surface of the roller has a good technical characteristics And roller running smoothly, brush broom to clean the surface of the roller, scraper for cleaning the light roller. ⑥ suction device: the role of suction device has three: a) to absorb the work of the roller to produce heat and water vapor, reduce the temperature of the grinding material to improve the grinding performance of the grinding. B) Cooling the roller to lower the material temperature. C) Do not let the dust inside the Raymond mill fly outward, reduce environmental pollution and improve people's working conditions.