Complete EFB Pellet Plant

Zhengzhou Fanda Machinery Co., Ltd. is one of the leading manufacturers and suppliers of complete efb pellet plant in China. With abundant experience, we warmly welcome you to buy cheap complete efb pellet plant for sale here from our factory. For price consultation, contact us.

 

EFB (Palm Empty Fruit Bunch) is a waste material produced after harvesting palm fruit. Because it has a high calorific value, the traditional way to treat EFB is to burn it and use the ash as fertilizer, but burning creates significant environmental pollution. In recent years, many studies have focused on EFB, and we found that its high calorific value makes it a good biomass material for pellet production. If we can turn EFB into biomass pellets, burning them will provide higher calorific value and less pollution, since biomass pellets are a form of clean energy and are widely used in developed countries as fuel for home heating, furnaces, boilers, and power plants.

With this purpose and our engineering team's long-term research and development, we designed an EFB pellet plant to turn EFB into biomass fuel pellets.

Now we have a 1.5t/h EFB pellet plant for beginners, 3t/h EFB pellet plant and 5t/h EFB pellet plant for industrial EFB pellet production purposes, 6t/h EFB pellet plant, 8t/h EFB pellet plant and 9-10t/h EFB pellet plant for commercial purposes. We can also design larger EFB pellet plants to meet client requirements.

A complete EFB pellet plant includes shredding, drying, grinding, Pelletizing, Pellet Cooling & Sieving, and Pellet Packaging.

The first step is to size and reduce it, generally to 200- 00 mm. The first step is to turn EFB into fiber. We use an EFB shredder to process EFB into fiber; the fiber is about 1-2 mm in diameter and 10-50 mm long.

The EFB shredder combines the inlet conveyor, shredder, and outlet conveyor. EFB is fed to the inlet conveyor, which moves EFB to the shredder feeding inlet; the rollers at the feeding inlet send EFB into the shredder. Inside the shredder, rotary blades and a stationary blade cut the EFB into fibers, and the outlet conveyor carries the fibers away.

A hydraulic system controls the feeding inlet; if a very large EFB touches the rollers, the hydraulic pump raises the upper rollers to widen the inlet so it can enter the shredder.

The shredder blades are made of high-wear-resistance alloy steel, providing better shredding performance and a longer service life.

The drying section reduces the moisture content of EFB fiber; EFB moisture content is commonly around 50%. In comparison, the best moisture content for pellets is around 15%, so we install a rotary kiln dryer in the EFB pellet plant to reduce the moisture in the EFB fiber.

A rotary kiln dryer includes an inlet conveyor, heating oven, dryer tube, outlet conveyor, and dust collection system. EFB fiber goes to the dryer tube from the inlet conveyor; hot air goes to the dryer tube from the heating oven; the EFB fiber and hot air mix inside the dryer tube and the moisture evaporates; dried EFB fiber goes to the outlet conveyor from the end of the dryer tube; and the dust goes to the dust collection system.

To ensure drying performance, the dryer tube rotating speed is VFD-adjustable if the inlet EFB fiber has a large difference in moisture content. If inlet moisture is high, reduce the rotating speed; if inlet moisture is low, increase it, ensuring the final dried EFB fiber moisture content is uniform. Because EFB fiber is long and soft, we use a single-pass dryer tube in the EFB pellet plant-the inner space of a single-pass rotary kiln dryer is larger than that of a three-pass rotary dryer. So EFB fiber cannot block inside the dryer tube.

The dust collection system at the end of the dryer consists of a blower, cyclone, airlock, and chimney; it collects dust during drying, reducing workplace dust.

The grinding part reduces the size of EFB fiber. Generally, pellets are produced with 6 mm, 8mm, 10mm, or 12mm diameter; among them, 6 mm and 8mm diameter are most popular. So, before feeding the dried EFB fiber to the pellet mill, we need to reduce the EFB fiber length to be smaller than the diameter of the pellets we want to produce. If the EFB length is much longer than the pellet diameter, it is difficult to press it into the ring die hole, which reduces pelletizing efficiency.

The grinding device we designed in an EFB pellet plant is a hammer mill. A unit hammer mill consists of an inlet conveyor, hammer mill, discharge auger, dust collection system, and outlet conveyor.

Dried EFB fiber moves from the inlet conveyor to the hammer mill; inside, the hammers bite the fiber and crush it until it is smaller than the screen holes, then the discharge auger moves it out. The dust collection system includes a blower, cyclone, airlock, and dust bags. Crushed EFB and dust go to the outlet conveyor and move to the next step.

We use a water-drop-type hammer mill that opens from both sides, making it easier to change hammers and screens and perform maintenance.

After preparing moisture and EFB size, the next step is pelletizing. We use a vertical ring-die pellet mill to press EFB fiber into biomass fuel pellets.

Our vertical-type ring die pellet mill, model MKLH600, is designed to produce EFB pellets with many advantages; one set has a capacity of 1.5 t/h. For higher capacity, you can install more pellet mills in one EFB pellet plant.

Our vertical-type pellet mill has advantages in feeding EFB fiber because the fiber is soft; if fed vertically by gravity, the EFB fiber can fall into the pelletizing chamber,

In a vertical ring die pellet mill, the rollers rotate in the middle of the ring die while the ring die stays stable; the rotating rollers create centrifugal force, which helps press EFB fiber into the ring die hole and improves pelletizing efficiency.

Our vertical ring die pellet mill is equipped with an automatic grease pump that injects grease into the bearings of the rollers and the main shaft.

The gearbox of our vertical ring die pellet mill is specially designed; the gears are heavier and stronger to meet the strength needed for pelletizing.

Data for vertical type ring die pellet mill

Model	MKL600
Capacity	1500Kg/h
Main motor power	132Kw
Ring die inner diameter	560mm
Oil pump power	0.75Kw
Roller greasing device	0.37Kw
Pellet cutter power	1.5Kw
Feeding material moisture	Around 15%
Feeding material size	Around 5 mm
Pellet diameter	6mm, 8mm, 10mm, 12mm
Pellet moisture	7-9%
Gross weight	5500Kg

The pellet cooling & sieving part cools the pellets and removes dust, powder, and small granular pellets, ensuring the pellets sent to the packaging machine or storage tank are high quality.

This unit includes a counterflow pellet cooler, dust collection system, and pellet sieving machine.

The counterflow pellet cooler is controlled by an electric panel with a sensor and time relay; cool air is directed to the cooling tank and mixed with hot pellets, reducing the pellets' temperature. The automatic system controls pellet discharge from the pellet cooler to the pellet sieving machine.

The whole system is a closed structure; an airlock on top of the pellet cooler allows only pellets to enter the cooling tank, while air cannot escape from the top. With the blower suction, cool air enters the cooling tank from the bottom of the cooler, and the blower discharges hot air. Some dust will go to the cyclone together with the hot air under the suction of the blower.

A pellet cooler can reduce pellet temperature while increasing pellet hardness and decreasing pellet moisture. After reducing temperature and moisture during storage, the pellets will not crack on the surface.

When pellets pass through the pellet sieving machine, the screen removes dust, powders, and small pellets, so the pellets that go to the next step are very high quality.

* The last stage is pellet storage; here, there are different solutions.

Some clients store the pellets directly on the ground after the pellet sieving machine; a conveyor can move pellets from the sieving machine to the storage area.

Some clients store pellets in a large tank; we can provide a conveyor to transfer pellets and design and manufacture storage tanks to match the client's building size.

Some clients package pellets into small bags like 10kg/bag, 15kg/bag, 25kg/bag, 50kg/bag, and 100kg/bag. We have a packaging machine that weighs pellets, fills bags, and seals them. We have a heat sealer for plastic bags and a sewing machine for woven bags.

Some clients pack pellets into 500kg/bag or 1000kg/bag jumbo bags; we have a jumbo bag packaging machine to weigh pellets and fill pellets into bags.

So, we can provide different storage or packaging solutions according to client requirements.

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