MZLH508 Ring Die Wood Pellet Mill

Price: negotiable

Fuel pellet production has rapidly developed in Vietnam recently. Fuel pellets are mainly used for industrial boilers and large power plants. The major limitation of pellet production in Vietnam is that most of biomass machines are imported and therefore are expensive. Our pellet mills are offered by manufacturers in China whom we have cooperated with in long-term, therefore our machines have priority in price. With the comprehension of Vietnam biomass production, the ring die pellet mill is introduced to you, which is suitable for large and medium pellet production to help you start your pellet business!

Features of MZLH508 Ring Die Pellet Mill
★ The ring die pellet mill adopts aerodynamics technology & the current round principle, which is used to reduce the temperature in pelletizing chamber to around 90°C. Then it can increase the lifetime of the ring die and other parts.
★ It is a pellet mill with gear driven structure and gears are treated by hardness quenching and processed by a milling machine, thus maintaining high concentricity with the shaft. All these guarantee high performance and improved capacity over belt driven models.

Main Structures of MZLH508 Ring Die Pellet Mill
Feeding inlet, screw conveyor on top, speed regulating motor, pelletizing chamber, transmission box, main motor and the base.

Spotlights of MZLH508 Ring Die Pellet Mill

◆ It has high efficiency, lower power consumption and stable operation.
◆ It adopts imported bearings(NSK) & seals(NAK) to get better transmission performance and less noise.
◆ Stainless steel ring die resists corrosion and can be used for longer time.
◆ The imperative feeder device is adopted. Materials like wood sawdust and rice straw are very light, so they are needed to be pushed into pelletizing chamber by force.
◆ The international advanced compensation type flexible coupling is of novel and compact structure, safety, low noise and less trouble.
◆ Permanent magnet device can remove impurities in the pelletizing process.
◆ Stand-alone oil lubrication system is more effective in maintaining lubrication and keeping the bearings from premature wear.

Raw Materials for Pellet Production in Vietnam
For pellet production in Vietnam, pellet production areas of main agricultural residues are Mekong River Delta, Red River Delta, Northwest and Northeast. Raw materials can be used for pelletizing are as follows:
1. Agricultural residues: rice straw, corn leaves and cobs etc.
2. Agro-industrial by-products: rice husk, bagasse, peanut shells and coffee husks etc.
3. Wood residues: sawdust, wood chips and bark.

Details of a Ring Die Pellet Mill Working Principle
The basic structure of the pelletizing chamber is mainly composed of these parts: the die, the rollers, feeding scraper and cutting knives.
The material that has been crushed and adjusted to proper moisture in pretreatment part of the biomass pellet plant will be put into the pelletizing chamber of the ring die pellet mill.
When the machine is started, the electric motor will drive the ring die to rotate. And the rollers will also revolve on its own axis due to the friction between itself and the die. By means of gravity and the centrifugal force generated by rotating of the ring die, material will be firmly attached to inner surface of the ring die. The feeding scraper will ensure the material to be continuously and evenly pushed forward along the die to be prepared for pelletizing. Then the material is squeezed by the roller and the die, and with the gradually increasing pressure, the density of the material also becomes higher. Thus the material temperature will rise, which softens the lignin in it and makes it easier to be shaped. At this time, the material is compressed into the die holes and shaped into small cylindrical strips with diameters of 6 - 10 mm (depending on the size of the holes). Finally, the cylinder will be cut into several-centimeter-long pellets, and thus is OK for subsequent steps.

Parameters of Ring Die Wood Pellet Mill

Model	capacity	Main Power	Power of Feeding Auger	Power of Conditioner	Inner Diameter of Die	Die Speed	Feeder Auger Speed	Pellet Size	Roller Number	Noise	Die Working Temperature
MKLH508	1.5T/H	110KW	2.2KW	1.1KW	508mm	150RPM	12-120RPM	6,8,10, 12mm. etc.	2	≤90dB(A)	≤85℃