Product Overview:

Bearings energy-saving ball mill main bearings using sliding bearings, I plant can be the main bearing of the technical transformation, with large-scale rolling bearings instead of sliding bearings, energy-saving effect is significant, large-scale mill energy-saving up to 10-15%, small mill up to 20-35 %; Easy maintenance, the new design of the ball mill using the overall rack, easy installation and commissioning, transportation and civil construction.

Product structure and principle:

This series of ball mill wet plaid ball mill for mineral processing, chemical, cement, construction and other industrial sectors wet grinding at all levels of hardness of the ore and materials used.

1. Feeding device 2. Cylinder 3. Main bearing 4. Discharge port 5. Transmission

The grille is provided with a grid plate with a grating hole, and a radial lifting plate is arranged on the back of the grating. The pulp is lifted to a certain height, forcing the discharge, and has a forced discharge function. Low, pulp flow quickly, can reduce the degree of grinding surface grinding, grinding capacity, high efficiency.

The mill consists of the main part of the feeding part, the material part, the rotating part, the transmission part (reducer, small transmission gear, motor, electric control) and so on. Hollow shaft with cast steel, lined with removable, rotary large gear with casting hobbing processing, the cylinder is set with wear-resistant liner, with good wear resistance. The machine is running smoothly and working reliably.

Ball mill works:

I produced the ball mill for the horizontal cylindrical rotary device, the external gear drive, two positions, lattice ball mill. Material from the feed device by the feed hollow shaft screw evenly into the first warehouse, the warehouse has a ladder liner or corrugated liner, built-in different specifications of the ball, the cylinder rotation to produce centrifugal force to a certain height after the ball Falling, the material has a heavy blow and grinding effect. Material in the first warehouse to reach rough grinding, the single compartment through the plate into the second warehouse, the warehouse is set with a flat liner, there are steel balls, the material further grinding. The powder is discharged through the discharge grate to complete the grinding operation.

Safe operation of ball mill

(A) the operation of the air running time of not less than 12-24 hours, the operation found that the problem should be resolved in a timely manner.

(B) air transfer test machine can be carried out under normal load test run. The load test run should be carried out in stages. Load operation should be feeding according to the situation of nesting, steel balls and cylinder liner to avoid unnecessary wear and damage.

1, add the appropriate material and 1/3 of the number of steel balls (the maximum amount of ball to see the total ball mill) test run 12-24 hours.

2, added to the 2/3 number of steel balls running 24-48 hours.

3, according to the ball mill nesting situation, the production of qualified products, with reference to the same type of concentrator ball mill actual loading, to determine the rationality of the ball mill ball, less than 72 hours of trial run.

(3) The increase in the load and the length of the test run time shall be determined on the basis of the running conditions of the gears and reducer gears (temperature rise, noise, tooth contact, etc.). In the tooth contact accuracy does not meet the design requirements, not full load operation.

(D) test run in the cooling, lubrication system should work properly. The main bearing, transmission bearings, reducer temperature should be normal.

(E) into the 2/3 number of steel ball test run 24-48 hours, should check and tighten all the bolts again.

(6) try to run the work to do a good job of the record.

Overflow ball mill operation

1, before the car check the mechanical and electrical parts, check the connection bolts are loose; the lubrication point lubrication is normal, the transmission is normal and reliable, protective device intact, electrical instrument is sensitive, good contact with the motor brush.

2, turn the car a week, check the equipment to turn part or around with obstructions and eliminate. When the start is not allowed to stand around.

3, check the correct, press the start button to start the motor, pay attention to current changes. Grinding machine can not start more than twice, the first time with the second time more than 5 minutes, if the third start, must be with the electrician, fitter with the check before starting. Do not start with the other equipment, to staggered start, so as not to trip.

4, the ball machine after the normal operation, to strictly according to the water, to the mine, add the provisions of the ball, prohibit overload operation, idle time of not more than 15 minutes, so as not to damage the liner.

5, the operation should pay attention to check whether the cylinder leakage slurry, carefully observe the current, voltage, feeding, water supply is normal, every half hour check the motor and the spindle temperature is not greater than 60 ° С, found the problem in time.

6, the operation should pay attention to observe the hollow shaft, the oil ring is rotating oil, hollow shaft temperature is normal, if found hollow shaft heat, close to the burning tile, should immediately take the forced cooling measures, not immediately stop, so as not to cause " " At the same time pay attention to check the lubrication of oil, temperature, regular refueling.

7, the ball mill should stop before the stop to the mine, after the treatment of concentrates, stop the water supply. Press the stop button, pull down the gate.

8, in the absence of notice power outages, the first pull down the knife, press the stop button, stop giving mine, water supply.

9, after parking, clean up equipment and environmental health, to ensure the production of civilization.

Second, the maintenance procedures:

1, the operation and maintenance personnel of the ball mill to be familiar with the structure of the crushing equipment and the components of the name, specifications, role.

2, the operator according to the "four" principle, to lubricate the drawings marked by the Ministry of lubrication requirements, shall not use untreated waste oil, keep the lubrication point clean.

3, pay attention to check the operation of the Ministry of bearing temperature does not exceed 60 ℃, and check whether the various parts of the bolt loose, with or without abnormal sound, to the mine water supply is uniform, the cylinder has no leakage phenomenon, motor current, voltage is normal. Transmission part of the protective cover is intact.

4, to keep the equipment sanitation clean, in addition to running part, the rest of the parts must be dealt with at any time.

Third, overhaul procedures

(1) repair cycle: 1, repair 1 month; 2, minor repair 1 - 3 months; 3, repair 12-24 months; 4, overhaul 60 - 120 months.

(B) maintenance content:

1, repair: the main check the amount of oil, adjust the gap, solid bolts, replace the individual liner or check the liner wear, repair feeder.

2, minor repair: check the cleaning tooth surface wear test, check the liner wear, if necessary, change.

3, repair: replacement parts of the feed, replace the transmission of small teeth wheel and bearings, gear box disassembly check. Large gears are running for 3 - 5 years can be adjusted according to the situation, the hollow shaft running 3 - 5 years should be measured.

4, overhaul: disintegration inspection cleaning, measurement, according to wear conditions, repair or replacement of large gears, hollow shaft, spherical tile, drive shaft, pinion and cylinder, repair replacement electrical components, electrical equipment overhaul, must be test run acceptance jobs.

(C) maintenance standards:

1, the two bearing base on the same surface in the same level, the center spacing tolerance 1mm, longitudinal center line unevenness deviation of 0.5mm, transverse line center line deviation of 0.5mm per meter.

2, tile seat contact surface should be even angle; every 50 ⅹ 50mm2 not less than 1 - 2 points; hollow shaft and tile contact surface should be 90 ° - 100 ° per square inch of not less than 2 points, journal and Bearings on both sides of the gap is approximately the same.

3, the cylinder flange and the front end of the mating surface should ensure good contact, not allowed to add gasket, two hollow shaft tolerance of less than 0.8mm. Large ring gear and cylinder end cap in the connection assembly correction, should be firmly thrust, good positioning pin, ring gear radial swing is not greater than 0.5mm, axial swing is not greater than 0.84mm.

4, the liner should be installed when the installation of end caps, cylinder liner should start from the population, according to the assembly requirements, the screws should be tightened, not leaking. Rubber liner with no gap, there are gaps at the use of sponge to block.

5, pinion centerline and large gear center line to be parallel, the deviation of not more than 0.2mm per meter. Tooth gap 1/4 modulus, tooth side gap 1.06 ----- 1.8mm, tooth surface contact area of not less than 50% of tooth length, tooth height of 40%.

6, reducer, motor and drive shaft drive coupling should maintain a high coaxial, the center line of different degrees of friction is not greater than 0.3mm, the center line tilt is less than 1/1000.

(D) the main wear and tear scrapped standards:

1, bearing wear is greater than the thickness of 1/3.

2, the pinion surface wear should not be greater than 30% of the tooth thickness, large tooth tooth surface wear is greater than 25% of the tooth thickness, can be used in the back, grinding to 1/2 should be scrapped.

3, ring gear ring distortion deformation should not be greater than 7.5mm.

4, the hollow shaft surface to produce grooves, marks or the inner surface of the local wear through the hollow shaft deformation, cracks, etc. should be replaced.

Maintenance and repair of ball mill

The maintenance and repair of the ball mill is a regular work, the maintenance work directly affects the operation rate of the ball mill and the service life, then in the course of how to properly maintain and repair, the following gives:

1, all lubricants in the mill into a continuous operation for a month should be released, thoroughly cleaned, replace the new oil. After the combination of repair every 6 months oil change once.

2, the lubrication point lubrication and oil level at least every 4 hours to check once.

3, the mill is running, the main bearing lubricating oil temperature rise does not exceed 55 ℃.

4, the normal operation of the mill, the transmission bearing and reducer temperature rise does not exceed 55 ℃, the maximum does not exceed 60 ℃.

5, large, small gear transmission smooth, no abnormal noise. If necessary, adjust the gap in time.

6, the ball mill running smoothly, no strong vibration.

7, the motor current should be no abnormal fluctuations.

8, the connection fasteners no loosening, combined with no oil spill, five tax, no leakage phenomenon.

9, steel ball wear in a timely manner to add.

10, if found abnormal should immediately stop grinding maintenance.

11, the mill liner is worn 70% or 70mm long when the crack should be replaced.

12, liner bolts are damaged caused by loose linings should be replaced.

13, the main bearing should be replaced when the serious wear and tear.

14, lattice ball mill grill board wear to no longer welding should be replaced.

15, large gear gear surface wear to a certain extent, after turning to continue to use.

16, heavy gear wear should be replaced.

17, into the material when the spiral wear and tear should be timely welding, wear to welding can not be replaced when the welding.

18, anchor bolts loose or damaged should be promptly repaired.

Maintenance of the ball mill when a regular work, maintenance work directly affects the operation of the ball mill and service life. In order to promptly find defects to eliminate hidden dangers to ensure the normal operation of the mill, in addition to daily maintenance, but also need to regularly stop grinding, (recommended once a month) on the important components such as hollow shaft, the main bearing, cylinder, reducer, Size gears, etc. for serious inspection, for a detailed record. In accordance with the shortcomings of the situation in order to properly handle and arrange the repair and overhaul plan.

产品应用范围：

球磨机是物料被破碎之后，再进行粉碎的关键设备。球磨机广泛应用于水泥、硅酸盐制品、新型建筑材料、耐火材料、化肥、黑色与有色金属选矿以及玻璃陶瓷等生产行业。

Product specifications and technical parameters: