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Wood pellets sieving Equipment

Sieving machines are available in various designs such as linear sieves, tumbler sieves, and vibrating sieves each employing a different sieving action. The choice of a suitable sieving machine depends on the desired particle size distribution, required amplitude and frequency of vibrations, and the physical state of the mixture. Sieving machines are used for removing dust from granular products and for grading grains. They are also used for the classification of granular material and the separation of solids from a slurry mix in the food processing industries.

Sieving

Building a fire with wood sticks and logs is one of the most wholesome experiences. But it would take a lot of trees to heat up our homes. Instead, the fire-stoking power of plant material can be concentrated in a wood pellet, boosting its burning efficiency. However, wood pellet making equipment and machinery involves more than just the compaction of sawdust. Processing high-quality pellets from biomass can be as intricate as loading a fire-lay.

Wood pellets

Large industries are shifting towards more environment-friendly technology, such as recycling wastes and utilizing them as an alternate energy source. For instance, sawdust and wood chips from wood mills are collected and processed into pellets which can be used in households or large industrial plants as a source of energy for heating systems. Plastic waste can also be recycled and made into pellets. Later these will be used in injection and molding machines to produce bottles, containers, or bags.


<h2>Turning wood and plastic byproducts into uniform pellets using a complete pelletizing system</h2>
The Complete Pellet Line from SALMATEC is a pelletizing system that includes multiple processes from conditioning raw materials and turning them into uniformly sized pellets. The entire system is specifically designed for the required product specifications. The conditioner helps the products achieve the optimum amount of moisture before feeding them to the pelletizer. The moisture content of raw materials can be controlled through a conditioning system in which the product moves inside a chamber while steam is also injected.

The pelletizer can be equipped with 2 or 3 rollers and multiple knives to cut the extruded products from the die into the necessary pellet size. The pellets then go to the cooler to prevent them from sticking to each other before storing them for at least one day in the silos. This process allows the structure of the pellets to stay intact and prevents them from breaking into tiny particles. Each complete system is designed according to the desired production capacity, raw material input, and high safety standards.

Complete pellet line

At the industrial level, the application areas of pellets range widely in fields such as feeds, biomass, wood chips, sawdust, and other renewable raw materials. To adapt to the most diverse requirements, the pelleting presses must have a modular design while keeping maintenance costs low and providing a long service life.


<h2>Producing pellets using a modular pelleting press with an energy-efficient direct drive</h2>
The MAXIMA Pellet Mill from SALMATEC is an industrial-grade pelletizer capable of producing pellets for various applications like feeds, woodchips, recycled plastics, and many more renewable raw materials. The system has a vertical ring die with optional 2 or 3 rollers that can be equipped with a cooling system. The rollers press the product through the ring die at the highest possible pressure before cutting it down to the right size with its adjustable knife. The system has a lifting frame to support heavy parts such as rollers and dies removed during maintenance.

The unit has a central lubrication system that automatically lubricates the rollers and the main bearings. A maintenance drive is equipped inside a well-ventilated housing for larger units to ensure slow and safe die rotation for work on the press tools. The system is made from high-quality materials and complies with the latest safety standards and guidelines. The Maxima provides energy efficiency and equal power transmission thanks to a one-step operated v-belt drive. The system is available in various capacities of up to 50 tons per hour, depending on the type of machine and product application.

Industrial pellet mill

As the worldwide demand for power keeps growing, the energy sector is diversifying its mix of sources. Pellet fuel offers a fossil-free alternative suitable for industrial and domestic sectors. But turning raw biomass, into pellets that comply with standards is a specialized process. Pellet fuel manufacturing equipment combines materials and additives to produce pellets of uniform size, density, and moisture content.

Pellet fuel

Pelleted feed

Salmatec is a manufacturer of pelleting presses, assembly components, and complete units. Based in Germany, the supplier offers solutions for feed, renewable raw materials, and recycling industries.

Your sawmill is churning out heaps of waste. Unless you’re turning your mill residues into bioenergy.

Wood processing industries in Europe and the United States generate a combined 150 million tons of residues every year. But its dusty characteristics make this material difficult to handle and it is often just disposed of as waste.

Sawdust, however, is anything but waste. With the right technology, it can be reprocessed into household-grade wood pellets and address demands for new bioenergy solutions.



<strong>But wood pellets are not simply compacted sawdust</strong>

In Europe, where an energy scare looms, consumers are stocking wood pellets for home heating systems. Unsurprisingly though, domestic-use pellets must meet strict certification requirements, explains Timo Müller, Marketing Manager at Salmatec.

“Unlike other pellet products, sizing is crucial here,” Timo tells us. “Wood pellets must adhere to a standard between 3.15 mm and 40.0 mm.” Pelletizers engineered for this type of pellets have special knifing technology that cuts pieces with millimetric precision.

Moisture control presents another critical challenge. The ideal water content in wood pellets hovers between 7%-9%. Moisture holds the milled dust particles together, but the pellets must be dry enough to burn efficiently and prevent mold growth. On the other hand, insufficient moisture makes them flaky.

The pre-pelletizing drying stage typically lowers water content to around 10% before a small amount of water is added again during the conditioning process. This moisture creates a homogeneous input material. But a conditioner does more than that, clarifies Timo: “It distributes particles evenly to enable a smooth production process.”

<strong>Giving wood waste a new lease of life</strong>

Producing wood pellets for domestic use is an intricate process. But it turns sawmill residues into a circular byproduct with a new purpose.

Equally important, as households are warming up to wood pellet stoves, it keeps the winter chills at bay.

Turn wood waste into good waste

Biomass

Energy is constantly changing, but it finds rest in a fuel. Once exposed to heat, though, these natural materials release their captured energy. Every aspect of everyday life – from manufacturing to digital services – is powered by the mastery of this complex conversion from fuel to energy.

Fuel

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Wood pellets sieving Equipment

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