Hornblende has a hardness of 5–6, a specific gravity of 2.9–3.4 and is typically an opaque green, greenish-brown, brown or black color.Its cleavage angles are at 56 and 124 degrees. It is often confused with the minerals augite and biotite mica, both of which are black and can be found in granite and in charnockite. Hornblende is a complex inosilicate series of minerals. Hornblende is an isomorphous mixture of three molecules; a calcium-iron-magnesium silicate, an aluminium-iron-magnesium silicate, and an iron-magnesium silicate.
Powder ginder is for super-fine grinding materials with hardness less than 6 in Moh‘s scale and humidity less than 6 percent such as hornblende, kaolin, limestone, basalt, calcite, marble, talcum, barite, gypsum, dolomite, bentonite mud, mica, pyrophyllite, sepiolite, carbon black, diatomite, graphite, alunite, fluorite, potassium feldspar, phosphorite, pigment, up to 200 kinds. The granularity (or final size) of the finished products can be freely adjusted between 325-3000meshes (0.045-0.0057mm), and the capacity (ton/hour) ranges from 0.4T/H to 12T/H depending on the final size and the grinding materials.
Working principle of HGM series hornblende powder grinder:
HGM series stone micronizer mainly consist of main unit, classifier, powder collector, dust cleaner, blower, muffler, sound-proof room, crusher, bucket elevator, storage hopper, and vibrating feeder.
After crushed by hammer crusher, the large materials become small ones and are sent to storage hopper by elevator, and then evenly sent to the upper distribution plate of the turnplate by vibrating feeder and sloping feeding pipe.
Technical data of HGM series hornblende powder grinder:
| Model | HGM80 | HGM90 | HGM100 | HGM100A | HGM125 |
| Ring Diameter(mm) | 800 | 930 | 1035 | 1035 | 1300 |
| Ring Number (PCS) | 3 | 3-4 | 3 | 4 | 4 |
| Roller Number(PCS) | 21 | 24-32 | 27 | 34-36 | 40-44 |
| Main Shaft Speed (r. p. min) | 230-240 | 200-220 | 180-200 | 180-200 | 135-155 |
| Input Size (mm) | ≤20 | ||||
| Finished Size (um) | 5-47(325-2500) | ||||
| Capacity (t/h) | 0.5-4.5 | 0.6-6.5 | 0.7-7 | 1-8.5 | 1.5-12 |
| Outlet Size L*W*H (m) | 13.9*4*6.2 | 14.7*4.8*7.2 | 18*4.6*8.6 | 18*4.6*8.6 | 14*9*10.25 |
| Motor powder (KW) | 145-165 | 185-204 | 263 | 263-290 | 380-430 |
Note: This specification is just referencing, any changes are subject to the products.
Features and advantages of HGM series hornblende powder grinder:
l、 High efficiency
Under the same finished final size and the same motor power, the capacity of powder grinder is twice as much as jet mill, mixing grinder and ball mill.
2、Long lifecycle of spare parts
The ring and roller are forged by special material with high utilization. Under the same grinding material and finish special size, the lifecycle of spare parts is about one year, which is 2-3times longer than impact mill or turbo mill. Furthermore, the lifetime can reach 2-5 years for grinding calcite carbonate.
3、High safety and reliability
As no rolling bearings or screws in grinding cavity, there are no problems caused by bolts shedding or rapid wear of bearings and seal components.
4、 High fineness and flexible adjustment
The final fineness of the grinding materials can be adjusted between 325 meshes and 3000 meshes, and the product fineness can reach D97≦5um.
5、Environment-friendly
The application of pulse deduster and muffler greatly alleviates dust pollution and noise.
