QLM Series Jet Mill
Application:
nonmetal ore, electronic material, chemical industry, new material,
abrasive, refractory, rare earth, ceramics, metal powder, toner,
pesticide, medicine.
Product details
| Application: | Foodstuff / Pharmaceutical | Motor: | SEW ABB SIEMENS |
| Power supply: | Customized | Capacity: | 30~300kg |
| Document: | FAT/ IQ / OQ / PQ | MOC: | SUS316/SUS304/ ,ETC |
Principle
compressed air is accelerated into supersonic air flow through
Laval nozzle, and then it is injected into the crushing area to
fluidize the material (the air flow expands to be fluidized bed and
floats and boils and collides with each other), so each particle
has the same movement state. In the comminution area, the
accelerated particles collide with each other at the intersection
of nozzles. The crushed materials are transported to the
classification area by updraft, and the fine powder meeting the
particle size requirements is screened out by the horizontally
arranged classification wheel, and the coarse powder failing to
meet the particle size requirements is returned to the grinding
area for further grinding. Qualified fine powder is collected in
the high-efficiency cyclone separator along with the air flow, and
the dust containing gas is filtered and purified by the dust
collector and then discharged into the atmosphere.
Technical Specifications
| Model | QLM-I | QLM-1.5 | QLM-II | QLM-III | QLM-3.5 | QLM-IV | QLM-V |
| Feed size mm | < 3 | < 3 | < 3 | < 3 | < 3 | < 3 | < 3 |
| Product size μm | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Capacity factor | 0.024 | 0.075 | 0.16 | 0.4 | 0.5 | 1 | 3.5 |
| No. Of nozzle | 3 | 4 | 4 | 4 | 4 | 4 | 4 |
| Host size cm | φ16X50 | φ25X80 | φ35X160 | φ41X200 | φ52X280 | φ70x260 | φ102X568 |
| Filter area m2 | 3 | 10 | 16-20 | 26-42 | 42-47 | 47-60 | 170 |
| Classifying wheel motor power kw | 1.1 | 3 | 4 | 5.5 | 7.5 | 15(11) | 15(11)×3 |
| Max speed r.p.m | 18000 | 12000 | 8000 | 6000 | 6000 | 4000 | 4(5)000 |
| Air compressor pressure≥ MPa | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 |
| Air compressor air amount≥ m3/min | 3 | 6 | 10 | 20 | 20 | 40 | 120(100) |
| High pressure fan power kw | 2.2 | 2.2 | 4 | 7.5 | 7.5 | 18.5 | 45(55) |
| Jet mill power kw | 3.3 | 9 | 10 | 15 | 18 | 35 | 108(65) |
| Standard operation space(m) | 2×2×2 | 4×2×4 | 6×3×6 | 7×4×6 | 7×4×6 | 9×4×9 | 18×12×11 |
Note: The power of jet mill does not include air compressor; energy
consumption (kWh) = power × 0.7.
Features:
◇ Particle size distribution concentration: no over crushing
Phenomenon & "free from over size"
◇ Stable operation after startup, high yield, qualified products
from a small amount of raw materials
◇ Stable operation, high reproducibility( High reproducibility
means that it is stable and can keep the same granularity every
time) and reliability; military quality, durable;
◇ Fineness: D97: 3-100 μ m; serial production: 2-5000 kg / h
◇ Automatic one key start stop (optional touch screen), automatic
program or manual control
◇ Good universality: various soft and hard, light and heavy
materials; good particle morphology and no entrainment
◇ The main engine does not need to supplement the external air or
absorb the moisture, and the flow field is stable and the quality
is uniform
◇ Only need to open the plexiglass observation window of grinding
chamber to change the nozzle: convenient and fast
◇ Only the clean compressed gas passes through the nozzle, so the
product quality will not be affected if the wear is very light
◇ There is no dead angle of accumulated material at the bottom of
the main machine, and the cleaning is complete; the tailing quick
discharge device
◇ Motor is directly linked with classifying wheel (simple
construction; easy maintenance; stable turn) A special design which
prevents materials from penetrating the bearings
◇ Stable operating behavior which guarantees best possible
constancy of fineness and fines yield
◇ The QLM series jet mills produce end products with closely
particle size distributions and exact topsize limitation.
◇ The QLM series jet mills are extremely low-wear in operation and
can be employed for materials with a Moh's hardness up to 9.5.
