Extrusion granulator No water/binder/drying Hydraulic/physical press Low water/power/space consumption High strength/density
Extrusion granulator operating principle:
The extrusion granulatr adopts the couple roller. Between the rollers, there is certain gap. Using double output shaft reduction Machine, makes the couple roller in phase and run face to face. One group of roller axle seat is fixed and another group of roller axle seat is slipped. With the support of the pressure of hydraulic cylinder, they are close to each other and the hydraulic system can has the action of compensation and protection. In the surface of the roller, the hole (arc trough) of many shapes and same size are arrayed. According to the different compression rate of the materials, choose the trough of one roller aiming at the trough of another roller, or peak to trough. Two rollers is arranged in horizon. The powder material on itself weight is compulsorily feed into the gap between two rollers over the rollers continuously and equally. When the material enters into the gripping area, it is gripped by the roller. With the continuous turning or the roller, the occupied space of the material is less and less and gradually compressed and reaches the max value of the formation pressure. Then, the pressure gradually reduces. The flakes due to its elasticity and self weight breaks off the arc trough, and enter into the cutting and granulation device and sieves into the granules.
Extrusion granulator technical parameter:
a).roller diameter: 504 available width: 300mm
b).roller speed: 14-20rpm.
c).screw feeder: 11kw motor frequency conversion speed adjusting. Equipmented with ration feeder, 1.5/1.1kw transducer speed adjustment.
d).accumulator pre-pressurization: 8-10Mpa
e).allowable max. formation pressure rate: 70kN/cm(75kN/cm for potash lop nur)
f). powder flaking thickness: 10-12mm
g).flaking productivity: 6-8t/h
h).grinding grain size: as per customer request: (usually about 10-12mm)
i). grinding productivity ≥3000kg/h
j). flaking principal machine power: 75kw
k).Installed capacity: about 109kw
l).dimension (L×W×H) : 3650×2250×2500mm
m).weight about 18t
n). output: 2500-3000kg/h
o). granule size: 1-5mm
p). granule shape: irregular shape
Extrusion granulator component:
1) Ration feeding device: Composed of raw material silo and star type charger with fixed amount transportation, 1.1/1.5kw power, frequency conversion speed adjustment.
2) Screw feeder: Composed of charger with 11kw frequency conversion speed adjusting motor, taper helix, agitator knife, taper charger with observation window and feeding bucket. This is to further finish degasification and pre-compress the powder.
3) Compactor: Composed of fixed axle seat and slipped axle seat, two alloy steel rollers, two hydraulic cylinder and pump, double output reduction machine, Type GIICL drum jugged shaft coupling and 45kw electromotor set.
4) Grinding machine: Grinding chamber, cutting principal axis, 19 pieces of multi-teeth rotation knife and comb plate composes the grinding chamber. The principal axis driven by 4kw motor to rotate cut the flakes in high feed. The cutting speed is 750~900rpm.
5) Granulator: Composed of granulation chamber, granulation principal axis, 10 pieces of turning cut knife and the U type screen mesh (grain size as per customer request) with the hole diameter 0.5~12mm. 5.5kw motor-wheel drives the principal axis to granulating. The granulation turning speed: 150~250rpm.
6) Electrical control cabinet: Composed of electrical control box, frequency conversion speed adjusting controller, ammeter, voltmeter, instruction light, button, voltage conversion switch, etc.
7) Vibrating screen: (one set) the grinded material from the grinding and granulator is screened into the grain by this machine and recycled powder. SFJH100×2C
8) Bucket hoisting machine HL200. Equipped based on the request.
Extrusion granulator applications:
Potassium Sulfate(SOP), potassium chloride, Russia red potassium, potassium nitrate, ammonium chloride, Ammonium Phosphate Monobasic, Diammonium phosphate(DAP), NPK compound fertilizer, import Russia Potassium Sulfate(SOP), ground phosphorite, NH4SO4, concentrated superphosphate, humic acid etc.
zinc oxide, lead oxide, calcium chloride, calcium phosphate, High test bleaching powder, cryolite, chemical inhibitor, silica, Isophthalodinitrile etc.
Note: It takes potassium sulphate(SOP) for example, vary in accordance with the material to be granulated.
Extrusion granulator applications
Extrusion granulator (type A produces small angular (irregular) granules)
Differences of Extrusion granulator type A and type B.
Extrusion granulator consists of screw feeder (upper taper) and double roller compactor
Extrusion granulator's peripheral equipments
Extrusion granulator's general production steps
Granules variable shapes
Granules and rollers
Extrusion granulator line are being loaded in one 40ft. container (SG-360A)
SG-500A extrusion granulator