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Ore ultrafine grinding machine
Application scope: Processing of calcium carbonate powder, gypsum powder, non-metallic ore powder, desulfurization materials for power plants, etc. Ma
Product details
Product Features
The ore ultrafine grinding machine, also known as the stone powder mill, ore powder mill, stone powder mill, stone powder processing equipment, commonly known as the ultrafine grinding machine, is the core product of the grinding production line. It is mainly suitable for grinding and processing mineral materials such as metallurgy, building materials, chemical industry, and mining. It can grind quartz, feldspar, calcite, talc, barite, fluorite, rare earths, marble, ceramics, bauxite, manganese ore, iron ore, copper ore, phosphate ore, iron oxide red, zircon sand, slag, water slag, cement clinker, activated carbon, granite, garnet, iron oxide yellow, soybean cake, fertilizer, compound fertilizer, fly ash, bituminous coal, coking coal, lignite, diamond sand, chromium oxide green, gold mine, red. Mud, clay, kaolin, coke, coal gangue, porcelain clay, kyanite, fluorite, bentonite, vermiculite rhyolite More than 100 non flammable and explosive mineral materials with a Mohs hardness below level 6 and a humidity of 6%, including pyrophyllite, shale, purple sandstone, green mudstone, laminated rock, basalt, gypsum, graphite, silicon carbide, etc. The particle size of the fine powder produced by the ore ultrafine grinding machine can be adjusted between 325-3000 mesh, and the output can reach 0.5-12 tons per hour. If you need to process various non-metallic ores to 15-425 mesh, please choose the Raymond powder mill. But if there are higher requirements for fineness, ultrafine powder mills should be considered.
Performance advantages
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Efficient and energy-saving
When the fineness of the finished product and the power of the motor are the same, the output is more than twice as high as that of the air flow mill, stirring mill, and ball mill. -
Long service life of vulnerable parts
The grinding roller and grinding ring are forged from special materials, greatly improving their utilization. Generally, it can last for more than one year, and when processing calcium carbonate and calcite, its service life can reach 2-5 years. -
High safety and reliability
Due to the absence of rolling bearings and screws in the grinding chamber, there is no problem of bearings and their seals being easily damaged, and there is no problem of screws becoming loose and damaging the machine. -
Environmental protection and cleanliness
Using a pulse dust collector to capture dust and a muffler to reduce noise, it has the characteristics of environmental protection and cleanliness.
Structural composition
Structural composition of ultrafine ore grinding machine
The complete configuration of the ultrafine grinding machine includes a hammer crusher, a bucket elevator, a storage bin, a vibrating feeder, a fine grinding host, a variable frequency classifier, a dual cyclone powder collector, a pulse dust removal system, a high-pressure fan, an air compressor, and an electrical control system.
Working environment of ultrafine ore grinding machine
1. Cleaning the equipment: After long-term operation, the grinding machine is prone to dirt that needs to be cleaned. During the cleaning process, high-pressure and high-temperature water guns should not be used to rinse, especially the electrical parts, which should not be washed with water to avoid electrical burnout.
2. Selection and replacement of oil: When selecting fuel oil, attention should be paid to the properties of the fuel oil. The commonly used fuel oil is diesel, but it should be noted that diesel with a freezing point higher than or equal to the ambient temperature should not be used. Generally, diesel with a temperature 5 degrees lower than the ambient temperature should be selected, such as -10 #, -20 #, -35 #, etc. When cleaning, it is also necessary to thoroughly clean the fuel system, and at the same time, check whether the fuel pump is normal to eliminate potential faults. Cleaning the fuel system is also to ensure that fuel oil can be added to keep up with the operation of the equipment during startup. For the replacement of lubricating oil or grease, attention should be paid to the equipment's use of lubricating oil, and whether replacement is necessary should be determined based on the amount used.
3. Maintenance of components: During the operation of the grinding machine, each component has different temperatures according to its work content. There is a cooling system in the equipment. During maintenance, attention should be paid not to allow sediment in the water tank of the cooling system. If it is found, it should be removed in a timely manner, and the water temperature in the water tank should not be too high or too low. Antifreeze should be added to the water tank.
Working principle
When the ore ultrafine grinding machine is in operation, the large pieces of material are first crushed and sent into the storage bin by the elevator, and then evenly sent into the main grinding room by the electromagnetic vibration feeder. The material entering the grinding room is picked up by the shovel and crushed between the grinding roller and the ring. The fan blows air into the grinding room, blowing the powder into the analyzer for sorting. If the fineness cannot be reached, it falls into the grinding room again. Qualified fine powder enters the finished product cyclone powder collector with the airflow, and the fine powder is separated from the air and discharged from the discharge port as the finished product. The air returns to the fan through the upper return duct, and the air path is circulating and flows under negative pressure. In the grinding chamber of the ultrafine grinder, due to the certain moisture content of the ground material, a certain amount of heat is generated during grinding, resulting in water vapor evaporation. In addition, the flange connections of various pipelines in the whole machine are not tightly sealed, causing external gas to be sucked in and increasing the circulating air flow. To ensure the normal operation of the grinder under negative pressure, the increased air flow is discharged into the bag filter through the residual air pipe between the fan and the host, and then discharged into the air.
Technical Parameter
| Model number | Average diameter (mm) | Number of grinding rings (layer) | Number of grinding rollers (pieces) | Spindle speed (r.p.m.) | Feed particle size (mm) | Finished product particle size range (μ m/mesh) | Finished product output (t/h) | Dimensions (L * W * H, m) | Total power (KW) |
|---|---|---|---|---|---|---|---|---|---|
| HGM80 | 800 | 3 | 21 | 230~240 | ≤20 | 5-47 | 0.4-4.5 | 13.9x4x6.2 | 145-165 |
| HGM90 | 930 | 3~4 | 24~32 | 200~220 | ≤20 | 5-47 | 0.6-6.5 | 14.7*4.8*7.2 | 185-204 |
| HGM100 | 1035 | 3 | 27 | 180~200 | ≤20 | 5-47 | 0.7-7 | 18*4.6*8.6 | 263 |
| HGM100A | 1035 | 4 | 34 | 180~200 | ≤20 | 5-47 | 1-8.5 | 18*4.6*8.6 | 263-290 |
| HGM125 | 1300 | 4 | 40~44 | 135~155 | ≤20 | 5-47 | 1.5-12 | 14*9*10.25 | 380-430 |
| HGM1680 | 1680 | 4 | 30~40 | 120~130 | ≤20 | 100-9 | 3.8-30 | 26.3*7.5*11.9 | 600-700 |
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