Limestone Mill Machine

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Limestone Mill Machine operating specifications

The Limestone Mill Machine is mainly composed of an electric motor, a reducer, a grinding roller device, a grinding disc device, a pressurizing device, a classifier, a body, a petrol station, a host PLC electronic control system and the like. The main motor drives the grinding disc to rotate through the reducer, and the wind enters the Limestone Mill Machine from the air inlet. The material falls through the feeding port of the screw feeder in the center of the grinding disc. Under the action of the centrifugal force, the material moves evenly from the center to the edge of the grinding disc. When the grinding roller area on the grinding disc is crushed by the grinding roller, the bulk material is directly crushed, and the fine material is pressed to form a material bed for intergranular pulverization. The pulverized material continues to move toward the edge of the disc until it is carried away by the strong airflow at the wind ring, and the larger particulate material is again dropped onto the grinding disc to continue pulverization. When the material in the airflow passes through the upper separator, the rotor Under the action of the blade, the coarse particles are returned to the grinding disc for grinding. The qualified fine powder is ground together with the airflow and collected by the system’s dust collector. The collected powder is the product ground by the Limestone Mill Machine. When the iron and other debris mixed into the material moves to the edge of the grinding disc, it cannot be blown by the wind due to its own weight. It falls to the lower cavity of the Limestone Mill Machine and is scraped into the slag discharge port by the scraper plate installed at the bottom of the grinding disc. Outside the machine. By adjusting the rotational speed of the rotor of the multi-head classifier, qualified products of different fineness can be obtained. By adjusting the pressure of the hydraulic system, the roller grinding pressure can be adjusted, and the raw materials of different hardness can be adapted within a certain range. The following is the installation process of the main structural components of the Limestone Mill Machine:

1. Process of Limestone Mill Machine

(1) Feeding from the loading material and transporting it to the intermediate warehouse through the No. 1 belt. There is a iron remover on the intermediate tank for the purpose of iron discharge. Below the intermediate warehouse is an excessive scale and a separator. The material in the middle is metered by excess and transported to the No. 2 belt. After the No. 2 belt, the material except the iron is transported to the No. 2 head frame and dropped into the lock air feed valve, and dropped into the Limestone Mill Machine through the center discharge pipe. The material is crushed by the Limestone Mill Machine, and the powder is selected by the classifier on the Limestone Mill Machine to the bag dust collector, and then the second material is brought into the finished product bin by the bucket elevator.

(2) The material overflowing from the Limestone Mill Machine is transported to the No. 1 bucket lifter through the No. 3 belt and re-feeded into the lock air feed valve, during which the iron is removed again by the magnetic separator.

(3) The hot air recovery from the main exhaust fan is sent to the Limestone Mill Machine again.

2, the operation of the bag filter

(1) Check that the equipment is sealed properly.

(2) Each lubricating point should be filled with a specified amount of lubricating oil.

(3) Adjust the air volume of each room so that the air volume error is below 5%.

(4) The cleaning control is divided into a timing mode and a fixed resistance mode.

3. Operation of the thin oil station

(1) Check the oil quality of the lubricating oil, replace and replenish the lubricating oil in time to ensure the proper oil level.

(2) The outlet pressure of the lean oil station reacts to the sum of the pipeline resistance of the petrol station system and various local resistances. When the pressure of the petrol station is adjusted, the pressure change of the petrol station is an important indicator of the normal operation of the reaction lubrication system. System pressure Ascending, indicating that the system is clogged, the system pressure drops, indicating that the system piping has a serious leak or the oil pump has failed.

(3) The outlet pressure of the oil station should not exceed 0.4.

(4) The outlet temperature of the thin oil station should not exceed 50 °C.

(5) The oil pump displacement of the thin oil station is reduced (the outlet pressure is reduced) or there is abnormal noise. The work pump can be replaced with the standby pump by the transfer switch, and the maintenance is carried out in time.

4, the operation of the main exhaust fan

(1) Check the oil quantity in the fan and motor bearing, whether the oil quality meets the requirements, and then open the water valve to supply water to the lubrication system cooler.

(2) Check all protective devices (3) Regularly maintain the bearings, and check the oil quality and oil level of the lubricating oil regularly.

(4) Control the bearing temperature, generally should not be greater than 85 °C.

(5) Regularly check the amplitude of the bearing. Under normal conditions, the large amplitude should be less than 100 & mu; m.

(6) The fan should be regularly inspected according to the usage, and it is generally overhauled once a year.

(7) When closing the fan, pass the turning mechanism to keep the fan at 58r/min until the gas temperature is lower than 200°C, or the impeller keeps idling when the gas is isolated until the heat is dissipated and the impeller surface drops to 200. °C.

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