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Vertical pellet machine and horizontal pellet mill, how to choose as a biomass pellet factory

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Today, biomass pellets have been widely used in many different industries. It is the most important substitute for fossil fuels. We can find pellet factories in almost every country. The rapid development of the biomass pellet plant has benefited from the development of the ring die pellet production line. Ring mold granulator is a large amount of biomass granule production machine, usually the output is above 1 ton/hour. Which is better to choose between vertical pellet mill and horizontal pellet mill, how to choose as a biomass pellet factory?

HOW TO CHOOSE PELLET MACHINES

About Centrifugal Force

Ring die pellet mill has a larger capacity normally above 1ton/h, which can be processed continuously. Some pellet machine manufacturers says that they have manufactured a new type of wood pellet ring die pellet mill, which called high efficient centrifugal ring die pellet mill. When we saw name, we may be tempted by the phrases like “high efficient” and centrifugal, and we may think that the ring die pellet mill seems like quality equipment. And the pellet machine manufacturers may told you that the high efficient centrifugal ring die pellet mill are specially refers to vertical ring die pellet mill. As a matter of fact, all ring die pellet mills are centrifugal pellet mills. For the one with physical knowledge knows that all the rotating objects will produce centrifugal force, it is no relevant to the direction of the pellet mill ring dies. We should know that both vertical and horizontal ring die pellet mill can generate centrifugal force, and the phrases like “high efficient” are just adjectives, so, do not be tempted by the fancy phrases.

Pellet Mill Ring Die
Pellet Mill Ring Die

About Pellet Mill Ring Die

The design of ring dies for vertical and horizontal ring die pellet mills are different.

The vertical pellet machine ring die normally consists of 10-12 rows of die holes, and the die holes have been separated into two parts. Under the action of gravity, only the lower parts of die holes can produce wood pellets during the production process, the upper parts of die holes can not discharge wood pellets. Therefore, the pellet manufacturers says that this types of pellet mill ring die can be used on both side. After a certain working period, we can turn the ring die over to use the other side.

But we should know that, there is only half of the ring die can produce wood pellets during production also means that the other half part is futile during production, and we have waste half of our electricity consumption and the wear consumption of ring die and rollers. So is it a waste or a privilege?

On the contrary, all the ring die die holes of horizontal pellet mill can discharge wood pellets during pellet production. Moreover, both the ring die and rollers of horizontal ring die pellet mill are rotating during pellet production, and the rollers are revolves not only round the inside of ring die but also on its own axis.

UNIQUE WORKING PRINCIPLE of VERTICAL & HORIZONTAL RING DIE PELLET MILL

Wood pellet machine, also known as pellet mill or pellet press, is the core equipment of a complete pellet production line. Due to the different die types, wood pellet machine can be divided into two types, flat die pellet mill and ring die pellet mill. And due to the different ring die types, ring die pellet mill can also be divided into two types, vertical ring die pellet mill and horizontal ring die pellet mill.

The biggest difference of these two types of ring die pelleting mills is the working principle.

The vertical ring die pellet mill is specially designed to press the material which is hard to be bonded and shaped. The material can be loaded into the pelleting chamber in its own weight. Then, under the strong pressure between the rotating roller and the ring die, the material enters into the die holes to be formed into pellets. And this vertical ring die pellet mill is called light-weight material pellet mill as well. Because this vertical ring die pellet mill is more suitable for managing the materials with light weight, such as, rice hull, grass with light weight, straw, melon and fruit hull and the material which is not easy to form.

Differ from the vertical ring die pellet mill, the horizontal ring die pellet mill adopts the feeding auger to feed the material into the pelleting chamber through the stock bin. The material begin to be soft in the sealed pelleting chamber, and under the great extrusion between rotating ring die in a high speed and the roller, the soft material is pressed into the holes uniformly distributed on the die. After that, the formed cylindrical solid body out of the holes will be cut by the knife, thus discharged through the export hole.

Ring Die Pellet Mill
Ring Die Pellet Mill

FEATURES BETWEEN VERTICAL VS HORIZONTAL RING DIE PELLET MILL

As the different types of ring die pelleting mill, these two machines have their own unique advantages. Customers can choose one of them according to their own needs.

Horizontal Ring Die Pellet Mill

1. The ring die of feed machine with quick-release coupling reduces the time of replacing the ring die and improves the production efficiency.

2. Double-motor drive. The high strength SPB narrow V-belt drive transmit with stability and reliability but with low noise.

3. The horizontal ring die pelleting mill is configured with many kinds of ring dies with different aperture diameters and compression ratio, the customers can choose according to their needs.

4. The components is made by international advanced manufacturing craft and designed according to the characteristics of the material from the customers, prolonging the service time of the equipment.

5. The all-stainless steel feeder, configured with original imported frequency converter to control feeding uniformly and accurately.

6. Monitoring system is equipped, solving the problem of high temperature hazard in the pelleting chamber caused by the improper operation thus efficiently avoiding the danger of bursting and fire.

Vertical pellet machine and horizontal pellet mill
Vertical pellet machine and horizontal pellet mill

Vertical Ring Die Pellet Mill

1. The new generation gearbox adopts high-precision gears, automatic lubricant pump system, keeping the gearbox working stability and warranty period.

2. Vertical ring die pellet mill is applicable for difficult molding materials with low adhesion rate, for example peanut shell, rice husk, fruit shell and sunflower husk; branches, bark, stem and other wood residues, various of crop stalks etc.

3. In this vertical ring die pellet mill, the die holes with equidistant distribution are centered by the output shaft, making more powerful and stability of machine working.

4. Feeding vertically with frequency conversion makes the feedstock uniform with no arch camber and easy heat dissipation.

5. he blower system is equipped in side of the working bin, controlling the working time freely.

6. Automatic lubrication system. The gear box is configured with circulation pump lubricating system controlled by the pinch roller to inject oil in timing. The oil pump motor can lubricate with automation and circulation making sure the shaft can be fully lubricated thus making the pellet machine running safely.

INTRODUCTION OF RING DIE PELLET MACHINE

As the key assembly unit in a complete pellet production line, ring die pelleting mill is mainly used for processing the materials like wood chips, tree braches, sawdust, logs, crop straw etc. into pellets. And the production capacity of one ring die pelleting mill can be about 500kg/h to 5 t/h by using one ring die pelleting mill. You can unit two or over two ring die pelleting mills for meeting larger production output. The origin of the name is from its structure with the die shaped of ‘circle ring’. In the ring, there are 2 or 3 rollers inside to rotate and extrude the material in the middle, thus the material go through the die holes to be cylindrical pellets.

To start a wood pellet plant, there are so many factors for the investors to consider of, such as choose the suitable factory site, the electricity supply, recruit labor, find raw material sources, find the wholesalers and distributors for the supply market and so on. As we all know, he who enter the market first, gets the most opportunity to occupy the supply market. Therefore, every investor wants to start their pellet plant quickly.

There are thousands of wood pellet equipment manufacturers in the world, each pellet equipment manufacturer has their own features, and each pellet equipment manufacturer says that they have the best wood pellet equipment for your pellet plant. No matter what they say, to get a comprehensive information about pellet equipment will definitely help the investors to choose their pellet equipment. In the following article, we will talk about the different types of pellet machines.

horizontal pellet mill
horizontal pellet mill


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