RongDa Machinery
Application of wood chip granulation:
Heat energy production: Wood pellets can be used to produce heat energy as a biomass fuel to replace traditional coal burning, and are used in heating boilers, industrial kilns, drying equipment, etc., to replace fossil energy and reduce the impact on the environment.
Power generation: Wood pellets can also be used as biomass fuel for biomass energy power generation in power plants, by burning wood pellets to generate steam to drive turbines and generators to achieve the utilization of renewable energy.
Alternative fossil fuels: Wood pellets can be used as a substitute for biomass energy, which is used to replace coal, natural gas and other fossil fuels to reduce dependence on limited resources and reduce greenhouse gas emissions.
Home heating: Wood pellets can also be used for home heating, as fuel for household wall mounted stoves, stoves, etc., to provide a clean and efficient heating method.
In general, wood pellets have a wide range of applications in the bioenergy industry, can provide a clean, sustainable energy supply, friendly to the environment, and are receiving increasing attention and applications.
Technical features of Rongda sawdust granulator：
Efficient and energysaving: The sawdust granulator adopts advanced compression granulation technology, which can efficiently compress waste materials such as sawdust for granulation, saving energy and improving production efficiency.
Low production cost: The sawdust particle machine has low operating costs, a wide source of raw materials, and almost no waste is generated during the production process, resulting in relatively low production costs.
Environmental protection and energy conservation: The sawdust particle machine does not generate waste gas, wastewater, or residue during operation, meeting environmental requirements. In addition, sawdust particles themselves, as biomass energy, are a green energy source and environmentally friendly.
High degree of automation: Most modern sawdust granulator equipment has highly automated production lines, which can automatically complete a series of processes such as raw material transportation, granulation, cooling, packaging, etc., reducing labor costs.
Adjustable particle size: The sawdust granulator can adjust the size and shape of the discharged particles as needed to meet the production needs of different particle requirements.
universality: In addition to producing sawdust particles, sawdust particles can also be processed into various shapes of particles, such as straw particles, corn straw particles, etc., with strong adaptability and universality.
Overall, the sawdust particle machine has the advantages of high efficiency, energy conservation, environmental protection, and high degree of automation, making it an advanced processing equipment with development prospects.
Sawdust granulator Price specifications：
The price and specifications of the sawdust granulator may vary depending on different brands, models, and production capacity. Generally speaking, the price of a sawdust granulator can range from thousands of dollars to hundreds of thousands of dollars.As for the specifications, the following are some possible specifications that a general wood chip granulator may have:
1. Production capacity: Generally measured by the number of sawdust particles processed per hour, common production capacities include 0.5-1 tons/hour, 1-2 tons/hour, 2-3 tons/hour, etc.
2. Power: Refers to the power of the main power equipment of the sawdust granulator, usually measured in kilowatts (kW).
3. Particle diameter: The sawdust particle machine can adjust the particle diameter according to needs, and common particle diameters include 6mm, 8mm, 10mm, etc.Due to differences in technical parameters and manufacturing processes among different brands and models of wood chip granulators, it is best to consult the manufacturer or distributor when purchasing to obtain more detailed price and specification information.
| Model | Main power(KW) | Capacity(t/h) | Die diameter(mm) |
| RD-320MX | 37 | 0.2-0.3 | 320 |
| RD-350MX | 45/55 | 0.5-0.7 | 350 |
| RD-420MX | 90 | 0.8-1.2 | 420 |
| RD-480MX | 90/110 | 1.2-1.5 | 480 |
| RD-508MX | 132/160 | 1.5-2 | 508 |
| RD-678MX | 185/200 | 2.5-3 | 673 |
| RD-768MX | 220/250 | 3-3.5 | 763 |
Working principle of wood pellet machine：
The sawdust pellet machine is a specialized equipment used to process sawdust into wood pellet fuel. The working principle is as follows:
1. The sawdust granulator mainly consists of a feeding system, a pressing system, a cooling system, a discharge system, a lubrication system, and a control system.
2. Feeding system: Wood chips are transported to the inside of the particle machine through the feeding port, usually with a conveyor or screw feeder used to feed the wood chips into the particle machine.
3. Pressing system: Wood chips are compressed into particles inside the granulator through molds or rollers, usually by high pressure to press the wood chips into the shape of particles.
4. Cooling system: Newly made wood chips are usually in a softened state due to high temperatures, so the particle machine is usually equipped with a cooling system to reduce the temperature of the particles and prevent them from clumping again at high temperatures
5. Discharge system: The cooled wood chips are discharged from the discharge port of the granulator and transported to storage or packaging equipment.
6. Lubrication system: The particle machine may experience certain wear during operation, so a lubrication system is needed to ensure the normal operation of the particle machine.
Overall, the sawdust granulator utilizes high pressure to press sawdust into granular fuel that meets specifications, making it an efficient equipment for producing wood particles.
Energy content of various wood residues：
According to the different raw materials, the current pellet products are divided into: fir pellets, pine pellets and straw pellets. After the professional testing of SGS, an international authoritative testing agency, all indicators of wood pellet fuel have reached the highest standards of the European biomass pellet fuel industry. Table 1 shows the DIN test results.
expectations | Spring wood pellets | Pine particles | Straw pellets | European Standard (DIN 51 731) |
热值 (M J/kg) | 19.42 | 19.86 | 16.38 | 17.5 |
Calorific value(kcal/kg) | 4646 | 4751 | 3919 | 4187 |
Moisture content (%) | 8.7 | 9.2 | 8.4 | <12 |
Density (kg/m3) | 1.22 | 1.23 | 1.12 | 1.0-1.4 |
Ash (%) | 0.9 | 1.01 | 12.5 | <1.5 |
Sulphur content (%) | <0.03 | <0.02 | <0.06 | <0.08 |
Nitrogen content (%) | 0.16 | 0.16 | 0.24 | <0.3 |
Chlorination rate (%) | 0.002 | 0.002 | 0.002 | <0.03 |
Table 2: Comparison of calorific values and costs of various fuels
Order number | Fuel type | unit | Calorific value (kcal) | thermal efficiency | Use calorific value | Price (RMB/kg) | Heat cost (kcal/RMB) |
1 | fuel oil | litre | 11000 | 90% | 9900 | 7 | 1414 |
2 | Coal 1 | kg | 5000 | 65% | 3250 | 1.1 | 2955 |
3 | Coal 2 | kg | 7000 | 75% | 5250 | 1.5 | 3500 |
4 | liquefied gas | kg | 11000 | 90% | 9900 | 5.8 | 1707 |
5 | natural gas | cube | 8300 | 90% | 7470 | 5 | 1494 |
6 | electricity | degree | 860 | 90% | 774 | 0.8 | 968 |
7 | Biomass pellets | kg | 4300 | 80% | 3440 | 1.2 | 2867 |
Table 3: Energy consumption table of one ton steam boiler for various fuels
Fuel name | diesel fuel | natural gas | electricity | Biomass pellets |
Calorific value (Kcal) | 11000 | 8300 | 860 | 4300 |
Fuel Price (RMB) | 7.3 | 5 | 0.8 | 1.2 |
Energy consumption per ton of steam | 73 (kg) | 96(m3) | 900 (kWh) | 220 (kg) |
Cost per ton of steam | 532.9 | 480 | 720 | 264 |
relative to the cost of biomass | 201.86% | 181.82% | 272.73% | 100.00% |
How does a complete wood pellet plant produce wood pellets?
Raw material preparation: The production process of sawdust particles first requires the preparation of sawdust as raw material. Wood chips can come from surplus materials in wood processing industries such as woodworking factories, furniture factories, and paper mills, as well as from wood waste.
Preliminary treatment: The original sawdust needs to undergo preliminary treatment, including drying and crushing. The drying process can use a dryer or other methods to remove moisture from the sawdust; The crushing process can use a sawdust crusher to make the sawdust into a powder suitable for particle processing.
Particle production: The dried sawdust powder is compressed into sawdust particles through a sawdust particle machine, usually requiring the addition of a certain proportion of sawdust particle oil or other additives to improve the hardness and combustion efficiency of the particles.
Cooling and screening: The newly produced wood chip particles have a certain temperature, and are cooled by cooling equipment. At the same time, they are screened by screening equipment to obtain wood chip particles that meet the specifications.
Packaging and storage: Finally, the wood chips are packaged and stored or sold.
Type of wood Pellet Plant for sale：
There are two main types of sawdust particle factories: industrial grade and household grade:
1. Industrial grade sawdust particle factory: specialized in producing large quantities of sawdust particles for large-scale applications such as energy production, industrial heating, and heating. This type of factory usually has complete equipment, including a sawdust particle production line, particle combustion equipment, etc., which can efficiently and stably produce sawdust particles.
2. Household grade sawdust particle factory: specializing in the production of small-scale sawdust particles, used as fuel for household heating, fireplaces, or small combustion equipment. This type of factory is usually miniaturized, easy to operate, and suitable for personal or small-scale use needs.
Ring die granulator or die granulator, which is better?
Ring mold granulators and flat mold granulators are commonly used equipment in the manufacturing process of biomass particles such as sawdust particles. They each have different characteristics and scope of application, and it is not possible to generalize which one is better, but to choose based on specific situations.
The ring mold granulator, due to its structure and working principle, can produce higher quality particles and has a wider applicability, making it more suitable for various raw materials. It has higher pressure and temperature during the production process, enabling better compression of raw materials into particles. This equipment is suitable for large-scale biomass particle manufacturers for commercial production.
Relatively speaking, flat mold granulators are more suitable for small-scale production or for household use. It has a small production capacity and relatively low requirements for raw materials, making it suitable for small-scale biomass particle processing and manufacturing in households.
Therefore, choosing which one is better requires comprehensive consideration based on production scale, raw material characteristics, costs, and production requirements.
Types of wood pellet machine mold:
The types of sawdust particle machine molds can be mainly classified based on hole depth, hole spacing, hole width, and mold material:
1. According to the classification of hole depth: There are generally two types of hole depths for molds: shallow hole molds and deep hole molds, which are suitable for production with different particle requirements.
2. According to the classification of hole spacing: The hole spacing of molds can affect the density and shape of particles, and there are generally two types of molds: fixed hole spacing molds and adjustable hole spacing molds.
3. According to the classification of hole width: The hole width of the mold also affects the size and shape of particles, including coarse particle molds and fine particle molds.
4. According to the classification of mold materials: Mold materials can be divided into alloy steel molds, stainless steel molds, carbon steel molds, etc. Different materials have different wear and corrosion resistance, suitable for different production environments and needs.
Rongda granule products:
Good biomass particles should have the following characteristics:
High calorific value: The calorific value of biomass particles is an important indicator of their quality, and high calorific value means that particles per unit mass can release more heat energy and improve combustion efficiency.
Low ash content: The lower the ash content, the less impurities are contained in the particles, and the amount of ash generated after combustion will also decrease, which is conducive to clean combustion.
Low moisture content: The moisture content of biomass particles has a significant impact on their combustion performance, and low moisture particles are more prone to combustion and release heat energy.
Appropriate particle density: Moderate particle density can ensure the stability and convenience of particles during storage and transportation.
After appropriate compression processing: Using a suitable granulator to compress biomass particles can improve their density, strength, and water resistance.
The following are general requirements for some common biomass particle parameter indicators:
Ash content: Generally, it is required to be less than 1% -3%.
Moisture content: Generally required to be less than 10% -12%.
Calorific value: Generally, it is required to be greater than 4000-4500 kcal/kg.
Density: Generally, it is required to be greater than 600-700 kilograms/cubic meter.
Compression strength: Generally required to be greater than 98-100 Mpa.
Particle size: Generally required to be between 6-10 millimeters.
Why choose Rongda？
Rongda Machinery has been in the biomass energy industry and feed industry for 15 years, and the company has developed and produced a number of biomass production line equipment and feed production line equipment. At present, the company's products have been exported to 56 countries and regions around the world, covering more than 1000 users, and established a good reputation overseas, the company has won a number of industry honors, ISO9001, 2008 international quality system certification, EU CE certification and Customs Union CU-TR certification.
交付和售后
Equipment preparation: Before delivering the equipment, the supplier or manufacturer needs to ensure that the equipment has been adequately tested and debugs, and meets the customer's requirements and standards.
Customer communication: Prior to delivery, the supplier or manufacturer needs to communicate with the customer to confirm the time, place and other relevant details of the delivery, and to ensure that the customer is ready to receive the equipment.
Logistics arrangements: Arrange the transportation and delivery of the equipment, including ensuring that the equipment will not be damaged during transportation, and deliver according to the customer's schedule.
On-site installation: After the equipment is delivered to the customer site, on-site installation and commissioning are required to ensure that the equipment can operate normally and meet customer requirements.
Training and use guidance: Provide customers with training and guidance on the use of the equipment to ensure that customers understand the operation methods and precautions of the equipment and can use the equipment normally.
Delivery and acceptance: The customer shall accept the delivered equipment to confirm that the equipment meets the requirements stipulated in the contract and can meet the needs of the customer.
Aftersales service: After the delivery of the equipment, suppliers or manufacturers need to provide aftersales service to ensure that customers can get timely support and help in the process of using the equipment.
