1. Boot Start and stop for more than 8 hours. Start the lubrication system before starting the machine, start the slow transfer grinding 2-3 times, and disconnect the slow transmission device. Start the synchronous motor (running for 10-15 minutes), start the ball cooling water in the summer, turn on the air compressor of the pneumatic clutch, make the air pressure of the gas storage tank run at 0.6-0.8Mpa, and then feed after determining that the grinding machine is running normally. Open production water. 2. Shutdown First stop the feeding for 15-20 minutes, start the high-pressure lubrication device, stop the pneumatic clutch stop grinding machine, shut off the production water, turn off the cooling water, stop all the lubrication devices, and turn off the power. Second, the equipment inspection before starting 1. Check the operation record before shutdown to understand the equipment operation status; 2. Check the feeder, the feed conveyor, the feed chute or the funnel, whether the drum feeder or the combined feeder is in good condition; 3. Check whether the bolts of the feeding part, the cylinder part and the concentrating part are loose or not, and whether there is any leakage phenomenon; 4. Check if the lubrication of the transmission part is good, and whether the pneumatic clutch (or coupling) bolt is tightened, whether there is any abnormality; 5. Check whether the oil level and oil pressure of the lubrication system of the oil station are normal, and whether the water pressure of the waterway is normal; 6. Check the instrument in the electrical control section, whether the electrical interlock is normal, and whether the voltage is within the specified range. Third, the inspection of the mill operation (ie check) 1. Whether the operation is smooth and no noise, no periodic vibration; 2. Whether the current value of the main motor is within the allowable range; 3. Whether the oil pressure and water pressure are within the specified range (the hydraulic pressure is 0.35-0.6Mpa), and the normal working oil pressure should be 0.4-0.6 Mpa. 4. Whether the lining bolts are loose or leaking; 5. There is no leakage phenomenon in the feeding bushing of the feeding part and the discharging bushing of the discharging part; 6. There is no oil leakage or water seepage in the front and rear bearing bushes to prevent mixing of oil and water. 7. The main bearing temperature is lower than 60 ° C, and the return oil temperature is lower than 50 ° C; 8. Synchronous motor bearing oil level is suitable, the oil ring rotation is flexible; 9. Whether the air pressure of the gas storage tank is suitable, the working pressure should be 0.6-0.8 Mpa. Fourth, the equipment operation notes: (1) Grinding concentration There is no fixed value for the grinding concentration. According to the nature of the ore, the fineness of the output is required, and it is used for several stages of grinding. The grinding concentration must be adjusted according to the actual situation. The first and second choice mills are suitable for grinding concentration, which is 73-78% for one section and 65-70% for the second and third sections. The magnetic separation grid type mill is suitable for grinding concentration, which is 75-80% for one section and 70-75% for the second section. (2) What are the factors affecting the processing capacity of the mill? (1) If it is a new installation mill 1. First is the nature of the ore 2. Particle size of the broken ore 3. Select overflow type or lattice type 4. Diameter of the mill 5 grading effect 6. Required grinding fineness 7. Rotating machine number 8. Steel ball ratio and steel ball filling rate (2) If it is already installed, if the conditions are certain 1. The nature of the ore 2. The size of the ore 3. The classification effect 4. The ratio of the steel ball 5. The concentration of the grinding 6. The filling amount of the steel ball These products are mainly used for pigments industry. Such as: Bon acid, it is Light yellow powder. Melting range 217-223°C. Easily soluble in alcohol, ether. Soluble in benzene, alkali solution. Slightly soluble in water and applied in producing colour Naphthol as and other kinds intermediates of colour naphthol. Moreover, it is intermediates of medicine and organic pigment. Other Naphthol series, like AS, AS-D are mainly used for organic pigments. Pigment Intermediate,Agrochemical Intermediates,Dyestuff Intermediate,Beta Naphthol SJZ Chenghui chemical co ltd , https://www.chenghuichemicals.com
Precautions for grinding machine to stop and operate
First, start the shutdown sequence