how does a briquette machine work - types and making process
There are several types of briquette machines with different working principles, they work on different pressures and suitable for different materials. So how they workdifferently? What are there advantage and disadvantages? Lets follow the article.
A briquette machine is used to turn the waste powder to a regular shape block, which can help to improve the conditions for those powder, make them easy for transportation, storage, and more useful for further usage.
Briquetting work always work with the binder as it needs the binding effect to get enough strength for the finished briquette. Biomass and industrialwaste are different from each other due to their binder sources.
The heating system is a special design for those briquettersdeal with materials contain lignin, lignin alway can be found on biomass. So theheating system is usually used for biomass briquetting. Other materials like coal, charcoal, etc. Binders are always needed when briquetting with the screw type briquette machine.
The suitablematerial is fed to the hopper and then conveyed by the screw inside the briquette machine.the rotating screw takes the material from the feed port, and compacts it against a die which assists the build-up of a pressure gradient along the screw.
As the screw briquette machine works with a pressure not that high, binders are always needed forming the briquette. Equip with a heating system will help the biomass material melt the internal lignin and turn it to a high-performance binder. Besides, other materials also work with this briquetterlike coal, charcoal, etc. These materials should be well mixed with the binder to get the briquette forms.
The briquette working process is in a chamber where materials are fed into, there materials are briquetting under a very high pressure. It causes theirplasticity and makes them binding stably together as a block.
Hydraulic type takes a long pressure keeping time on the briquette, this prevents theshort-time material deformation rebound and will cause a special heating for those materials like sawdust for melting its internal lignin, make the briquette with higher strength.
The piston type uses the rotary power of the mechanical device or the thrust of the hydraulic cylinder to reciprocate the piston (or the plunger), and the piston (or plunger) drives the ram to reciprocate in the forming sleeve to generate a pressing force to form the material to briquette.
A big pressure will be generated as the movement of the flywheel and punch the briquette time after time in a short time, it raises the temperature of the raw material. As the raw material moves, it fractionates with the inside, another kind of heat friction heat generates. With the action of these two kinds of heat, material raises its own temperature to a high level and melt the lignin. Particle materials then bind together and become strong enough.
Roller press works with two close rotating rollers at the same speed butwith opposite direction. The two rollers, with the same width and diameter, have holes on the surface. When they move, the same two holes on the different roller will coincide at the intersection of the midline and the briquette will be pressed there.
A normal roller press will use a wedge iron to fix the movable roller as it works on a low pressure. The hydraulic pump station is also can be used to fix the roller and supplies a much bigger but flexible support to the roller to work stable on big pressure.
wood sawdust briquette machine plant design and manufacturer
Compared to the agricultural raw material, wood sawdust has a lower ash content, lower risks of corrosion and dirtying, requires high temperatures of ash deformation (>1200C) and also requires no additives or thickeners to increase production costs since humidity and the actual wood lignin work as a natural adhesive.
Moisture will reduce the quality of the briquette, high moisture will make the briquette with cracks and a low density, low moisture leads the briquette loose, with a rough surface and hard to be made.
For different briquette machines, the requirement is different as well, for us, a material size below 5mm is an ideal choice for making high quality briquette with high density and easy to choose a machine. But dont worry if you have some wood chips in, using a log briquette maker will make the size range rough, the wood chips below 30mm all can be briquette with the log maker. If all of your material is wood chips, wood chip compactor is your best choice.
The main body of the wood is made up ofcellulose, hemicellulose and lignin.Thecellulose gives the wood mechanical strength and toughness, lignin is bonding fibers inside the plant, andhemicellulose is a bridge to connect thecellulose and lignin together.
When the wood sawdust is making, the briquette pressure (or may also involve to other heating systems) causes the raw materials temperature rise. The lignin becomes soft and has the ability to bind the wood sawdust together.
The screw bio briquettes machine is used to make sawdust briquette in an economy way, the machine is with a low price and thanks to the heating system, it enables working in a low pressure which helps a low running cost. The heating temperature not only soft the lignin, but in another word, that is melt, the briquette is with high strength and also an ideal briquette for making charcoal. This is where the wood sawdust charcoal briquette from.
Log briquette maker is an ideal briquette machine now for the industry. It is with a mechanical briquetting system which supplies a high capacity and low maintenance. Flexible with the briquette size by only change the die. The rough range for raw material size as well as the moisture.
Biomass brick briquetter is suitable for making brick briquette with sawdust, the hydraulic system makes the briquette with high density. The brick is also a popular product in the market. The machine is easy to control with PLC system or manual work.
Wood chip compactor brings a way easily to storage and transports the wood chips, the bale is very stable because of its high pressure. It works with a highcompression speed makes the machine with high efficiency.
design and fabrication of briquetting machine pdf report download
Sachin is a B-TECH graduate in Mechanical Engineering from a reputed Engineering college. Currently, he is working in the sheet metal industry as a designer. Additionally, he has interested in Product Design, Animation, and Project design. He also likes to write articles related to the mechanical engineering field and tries to motivate other mechanical engineering students by his innovative project ideas, design, models and videos.
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