Biomass briquetting is to briquette and carbonize the scattered, light, difficult to store cellulose biomass, turn it to a kind of fuel. Biomass briquetting can increase capacity and calorific value of biomass, improve combustion performance, make the bio waste become a kind of commodity energy source. This conversion technology is increasingly accepted by people around the world now.
Briquette was first developed by the British mechanical engineering research institute. Their raw material is peat. Then the technology was used to process lignite and clean coal, and was gradually developed to use for the waste in the paper mills. In the 1930s, the United States began to design the screw type briquette machine. At the same time, modern piston briquetting machines were invented and promoted in Sweden and Germany, the piston briquette with sawdust as raw materials were competitive in the market all along the time.
Wood processing plants in Western European countries and the United States have proposed the use of wood for energy self-sufficiency. Therefore, biomass compressed fuels have developed rapidly and have become an industry in countries such as Western Europe and Japan. Some countries in India and Southeast Asia also had paid considerable attention to the research and application of this technology. By 1984, 172 factories in Japan had produced biomass briquettes with a total output of 260,000 tons/year.
The loose biomass material, when subjected to a certain external pressure, will decrease the volume and increase the density. The raw material particles undergo successive stages of rearranging position, mechanical deformation and plastic rheology.
When the water content is about 10%, although it is necessary to apply a large pressure to form it, since the non-elastic or viscoelastic fiber molecules are entangled and twisted together, after removing the external pressure, it is generally impossible to restore the original shape and it becomes a firm structure briquette.
Take the lignin as an example, when the briquetting temperature reaches its softening point, plastic deformation occurs, thereby bonding the raw fibers closely together and maintaining the established shape.
When the lignin content of the raw material is low, it is necessary to add an appropriate proportion of binder, such as clay, starch, waste paper, etc., in order to make the briquette with a dense structure and fixed shape.
After adding the binder, there will be an adsorption layer on the surface of the biological particles, which will cause a gravitational force between the particles by the van der Waals force. When the external force is applied, the particles can also generate an electrostatic attraction between the particles, resulting in particles a chain structure.
For example, in the particle briquetting process, if the particles of the raw material are too large, the material must be crushed in the briquetting machine before entering the forming hole, so that the briquetting machine consumes a large amount of power.
In the briquetting process, the briquetting machine can also perform a certain crushing operation, but it is not as efficient as a crusher. So it is much important to crush the raw material in a crusher.
It is not necessary to crush all the materials when briquetting. For example, when hot briquetting is carried out using sawdust or rice husk as raw materials, foreign matter of a large size is often removed from the raw materials, and briquetting can be performed without crushing.
However, for large-scale agricultural and forestry wastes such as wood chips, bark, and plant straws, crushing operations are required. Crushing is often performed twice or more, and a drying process can be inserted in the middle of the crushing process to increase the crushing effect.
Therefore, after the biomass is crushed, a drying process is required, the optimum humidity usually is 10% to 15, and the piston type briquetting machine can be appropriately higher (16% to 20%) because the processing process is intermittent.
By the drying operation, the water content of the raw material is reduced to the extent required for briquetting. The dryers used in conjunction with the biomass briquetting machine mainly are rotary drum dryer and vertical type air flow dryer.
The main driving force of the machine is affected by the friction force and the density and diameter of the briquette. The influence of the friction is the angle (half the opening angle of the mold) and the mold temperature. The larger the angle, the greater the friction, the higher the density of the material, and the greater the total power. Therefore, the design of the angle is a key factor. It has different requirements depending on the diameter, density and material type.
For example, a screw briquetting machine, the structural size is relatively determined, and the heating temperature should be based on the structure of the machine so that the temperature is kept within a reasonable range. If the temperature is too low, the raw material is difficult to briquette, and the energy consumption will be increased. When the temperature is increased, the energy consumption of the motor is reduced, but the briquetting pressure is also reduced, so that the briquette density becomes small, which will cause crackle or even fracture. When the heating system works on this type of briquetter, the temperature is usually controlled between 150C to 300C, and the corresponding adjustments are made depending on the raw materials.
In the briquetting process, the raw material also can be used without the external heat source, on the pistion briquetting process, due to the mutual friction between the raw material and the machine parts, the raw material is also heated, and reaches a temperature of about 100 C, the lignin contained in the raw material can also be softened then and acts as a binder.
The inner diameter of the sleeve for shape retention must be slightly larger than the diameter of the smallest part of the briquetting molding, in order to eliminate the partial stress of the finished biomass briquette.
The port of the sleeve is designed to adjust the shape retention capacity. If the briquetting diameter is much smaller than the shape of the sleeve mold, the biomass will expand rapidly and cause cracks. On the contrary, if it is too small, the stress will not be eliminated, after the briquette output from the sleeve, it will suddenly crack or smash because of the sudden drop in temperature.
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Rice husk, another name as rice hull, is a kind of biomass waste as the coat of the rice. The ingredients of it are cellulose (40%-50%), hemicellulose (10%-30%), and lignin(20%-30%). The lignin itself is with high rate compared to wood (17%-32% for different wood), which makes a good material for briquetting.
Rice husk is widely used as the wide distribution and high burning value. It is easy to burn, with less pollution and ash content. Burning rice husk can highly reduce the SO2 rate of the exhaust compared to use coal. Mainly the rice husk has several ways to use with its burning effect:
The rice husk can be directly used as fuel, but this makes a lot of heat loss. The bulk burning efficiency for rice husk is only 10%-30%, make rice husk briquette can improve this work. After the rice husk is made to briquette, the burning value then is 60% higher than wood, density is 10 times as the bulk (almost twice as wood). Due to this high density, it can keep on burning for two hours after the flame stops.
The rice husk is normally with a length around 7mm which can be briquette by some of the briquette machine but not all of them. Make it with proper size is crushing. The crushed rice husk with proper moisture then can be briquette in briquette machines as making the briquette.
If your rice husk briquette plant only with small capacity, you may find your own way of drying like put it in the sunshine. Else we advise using a dryer like rotary drum dryer for this process in order to make the continuous plant, even moisture of the raw husk, and higher the efficiency.
The log briquette maker can accept raw rice husk with no crushing process, the final briquette is flexible with rob size as well as pellet size. Mould is easy to change to be suitable for these different sizes briquette making. With skilled workers, the mould change process only takes one hour. The spare parts are with long service life and can run with no fault with thousands of tons.
If you are planning to make rice husk charcoal, then it is an ideal briquette machine for your raw rice husk, the price of the briquette machine is very affordable. Not a much high pressure is needed as theres a heating system in the output to smelt the lignin, smelting lignin makes the briquette quality better. The machine is easy to move, fix up and operate.
Biomass brick briquetter is suitable for making brick briquette with rice husk, It works with a hydraulic system and makes the briquette with high density. The brick briquette is also a popular product in the market. The machine is easy to control with PLC system or manual work.
Wood chip compactor mainly is used for compacting wood chips. But it also can be used to compact rice husk. High pressure supply can make the rice husk bale perfect.But, to be exact, this is a kind of compacting machine rather than briquette. As the rice husk also has a lot of other usages rather than briquetting. The compacting way is also a popular type. It helps to reduce the cost of storage, transport for rice husk.
Prakruti Machines was founded byMr. Laxman Helawar, a mechanical engineer with passion for machines. Few years since inception, today Laxman and his team of dedicated staff are working towards producing most cost effective and production efficient hydraulic briquetting machines in the world.
Our technical talent pool consists of a qualified and efficient group of Engineers, quality controllers and operators who have been employed with us since inception and they are our most valuable asset
Briquetting Press is die and punch type Hydrualic press with Filtered & cooled lubrication oil is supplied by pump through p.pipes. Material is continuously fed through a hopper by means of a vertical feeder with its own gearbox and a motor. Regulated feed to the press is provided by independently driven screw through Rexible pulley/drive on motor. From feeding chamber material is compressed by ram through taper bore die. Briquettes comes out from cooling line. Total process is Continuous & Controlled by panel. Briquetting Press is used for binder less production of high density fuel briquettes i.e. biocoal from all types of degradeable biomass. Residues & wastes such as groundnut shell, wood waste, baggasse (sugar cane stalk), cotton shell/stalk, mustard husk/straw, coQee husk, pine needle, saw dust etc. Acceptable moisture in raw material of briquetting is 8-12%.
Anything which is biomass and is waste can be briquetted into high calorific Fuel briquettes. It can be Wheat Straw, Mustard waste, Rice husk, Arhar stalks, Groundnut Shell, Pine needles Sarkanda, Bagasse. Coffee husk, Cotton Stalks, Sunflower waste, Sugarcane , Bagasse, maize stalks, bajra cobs & Coir dust in agricultural waste. Similarly forest waste such as Wood chips and shravings, Tree bark, twings, Saw dust bamboo, Wild grasses, Shrubs, Leaves & trash can also be briquetted without any binding agent with the help of briquette machines.
Briquette press receives Biomass waste by a speed controlled screw conveyor. The speed of the screw determines the outcome of the machine this hardness of the briquette. The speed of the raw material is regularized on the basis specific gravity of the raw material. A modification of the specific gravity of the raw material will thus results in a variation of the hardness of the briquette. We at Prakruti Briquette Machines always recommend our briquetting presses to be equipped with an automatic capacity adjustment system that will adjust the capacity up and down depending of the raw material.
Raw material like saw dust is screened and stalk (Forest & Agro Waste) are grinded by chipper cum Grinder (Single Action)For using material of two or more type, it should be mixed in suitable from by mixture/ manualy.if raw material has high moisture it should be reduced by sun drying or using flash dryer if moisture is so high, it can be reduce by Rotary drum dryer.Hammer mill grinder is used to grind the material to get desired to get desired grains size for small models. Raw material (desired grain size) is transported by pneumatic system to holding bins fixed over Briquetting press. Dust is collected by cyclone or direct by screw conveyor to B.Pass. By screw conveyor, material is discharged from bin to the press. Material is Compressed by ram through taper bored die. By compression temperature is raised & lignin come to the surface and binds the material by its natural binder. Briquettes are formed in shape of log and it is automatically pushed through cooling line to the storage points.
Finish Products Briquettes have high specific density (1100-1200 kg/m3)and bulk density. These can withstand the stocks of long distance transport, Loading /Unloading and transportation costs are much less, requirement is drastically reduced. Comoared to fired wood or losse biomass, briquettes give much higher boiler efficiency because of low moisture and higher density. A Briquettes is an ideal Due to Eco friendly & Renewable Energy Fuel. Economical and cheaper than other solid fuels i.e coal & wood. Higher calorific value around 3600-4800 K Cal/Kg & above. Pollution free because there is no sulfur or any fly ash when burn. Consistent high burning efficiency due to the low moisture. Easy for Transportation, feeding due to unique shape. Combustion is more uniform compared to other coal. Demand able market due to high rise in fossil fuels price.
To produce high-quality briquettes the following requirements must be met: Moisture of raw material should be ranges between 8-15%. Raw material should be pre-shredded to the size of 5-50mm according to model. Raw material should be free from foreign substances such as sand, stones and metal.
Today every country wants to preserve their fossil fuel such as oil, natural gas, coal & wood. Briquette is not only a good fuel but is also good for nature, as it only emits that mush of CO2 which is required by the environment for Plants & trees. Beside Energy various governments offers huge incentives and promotional tax benefits to install Briquette Press & Machines.
Briquetting Press is die and punch type Hydraulic Filtered & cooled lubrication oil is supplied by pump through p.pipes. Material is continuously fed through a hopper by means of a vertical feeder with its own gear box and a motor. Regulated feed to the press is provided by independently driven screw through flexible pulley drive on motor.From feeding chamber material is compressed by ram through taper bore die. Briquettes comes out from cooling line. Total process is Continuous & Controled by panel. Briquetting Press is used for binder less production of high density fuel briquettes i.e. biocoal from all type of degradeable biomass. Residues & wastes such as groundnut shell, wood waste, baggasse(sugar cane stalk), cotton shell/stalk, mustard husk/straw, coffee husk, pine needle, saw dust etc. Acceptable moisture in raw material of briquetting is 8-12%.
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Everyone who wants to buy a briquette machine always asks this very important question what is the price of the machine? Today, let us analyze the cost of the briquette presses and what we should pay attention to about the briquette machine price.
The most important thing of a briquette machine we must pay attention to is the type of the briquette making machines, we should find whether the type is suitable for our raw material or not, is it has a pressure big enough to make briquette with our ideal strength, is the briquette shape what we need.
The roller type machine has been widely used in industry, especially in the steel plant, it has features of large capacity and continuous work, as the pressure keeping time is much less than other type briquette machines, binders are always needed to help to make the briquette.
Hydraulic type briquette machine works with the hydraulic system which supplies a big adjustable pressure. In order to be suitable with the briquette pressure, the machines are equipped with spare parts with high quality.
Most of the screw type briquette machines are used for biomass with small capacity. As the biomass has an original binder lignin, people always try to find ways to briquette biomass with a binder free way. Screw pressure is not big enough to make it flow. Thus other ways like heating are considered to solve the problem.
Agriculture has a lot of waste every year. These waste include agricultural and forestry by-products and processing residues, energy crops, and organic waste such as human and animal waste, etc. Biomass energy is the only renewable energy source that can be preserved. Aftermaking the biomass briquette, the volume is reduced by 20 to 30 times, the density can be around 1 t/m3, with low moisture, and easy to store or transport. Biomass energy accounts for about 15% of global energy, and in some countries, the proportion is even as high as 60-80%.
Recycling waste is always the topic in the industry. These waste, in industry, they even can make more value compare to the original raw material. Most of the waste for briquetting is theswarf and mining powder. By using these waste, we make a higher efficiency for the production line and protect the environment by reducing the raw material cost.
There are a lot of things need to be considered before you buy a briquette machine or set up a briquette plant, the cost on the machine is an investment for only once but further consideration should be included as we should make value from the briquette.
A general calculation should be done before you make your choice of purchasing the briquette plant, follow the instruction and regularly maintain your machine with care will help your briquetter run longer time and face lower default.
GY high pressure briquetting machine is a kind of pelletizing machine which can feed various kinds of dry and wet powder through the preliminary pessure device compulsorily into the roll press area and make into high bulk density ball.It is mainly applied in the coal, mining,metallurgy,fire-resistant materials,construction materials and other light metal industries.Our briquetting machines have been widely applied in China and abroad.
Since the first large high-pressure briquetting machine GY 750-300 was finished trial-manufacture in1989 ,We have formed three series, more than twenty models after mant tears of research,tests and improvements.The structure ,performance ,quality and service life of products have reached a world-advanced level.
The pre-pressing spring in the device will force the materials into the inter-space between the double rollers, then the materials shall be pre-pressed and transited to the arch groove of the pair-rollers.
The roller pits with the same shape are distributed evenly on the rollersurface. The 2 pair-rollers shall rotate at constant speed reversely through engagement drive. The rollers will suck the materials at the entry into the groove and forcibly compress them.
With the continuous rotation of the pair-roller, the ball shall be taken off by the elastic force and gravity. The roller rotates to compress and form the materials periodically with the continuous operation of the motor to realize the batch production.
As we know, waste from production is a considerable cost factor for plants. Economic solutions are in demand for handling these materials derived from industries of coal, mining, metallurgy, fire-resistant materials, construction materials, and other light metal industries, etc.And ZHONGYUAN briquetting machines are the best answers.
ZHONGYUAN briquetting machine could be applied in the materials, such as Iron Fines,Aluminum Ash,Magnesium Powder,Quicklime,Bauxite,Laterite Ore,Dolomite,Fly Ash,Flourite Powder,Manganese,Nickel,Sodium-Cyanide,Magnesium Hydroxide,Activated Carbon, etc.
Zhongyuan Briquetting Presses can be designed for different briquette shapes and sizes on the application. A variety of briquette shapes, such as elliptic, round, elliptic, pillowed, squared, and bread shape or other singular shapes are all available.Get in Touch with Mechanic