Product Overview:Project Description:With the development of technology and the scarcity of resources, wood chips (sawdust), as well as various straw and mushroom residues, have been transformed from discarded waste into usable resources for making wood chip products and producing high burning value biofuels. These
Project Description:
With the development of technology and the scarcity of resources, wood chips (sawdust), as well as various straw and mushroom residues, have been transformed from discarded waste into usable resources for making wood chip products and producing high burning value biofuels. These all require wood chips and crushed residue to go through a drying process. However, many drying equipment in the market is not suitable, and many biomass pellet fuel manufacturers can only maintain production due to low efficiency of drying equipment, unsmooth operation of equipment, and product quality issues, resulting in low profits. As a result, biomass fuel and charcoal production enterprises are forced to seek professional manufacturing enterprises with high production equipment efficiency and technology. The optimization design of drying equipment should first meet the requirements of producing products with competitive quality, followed by saving investment, smooth operation of mechanical equipment, low maintenance costs, high labor productivity, and consideration of labor conditions and environmental requirements.
1、 Equipment Overview:
Sawdust is an organic substance with a moisture content of around 40-50%, which requires a moisture content of around 12% after drying. Its main moisture is free water and biological water, which are relatively easy to remove, while biological water is difficult to remove. The drying process of sawdust is mainly considered from the aspects of output size, characteristics of finished materials, ease of operation, one-time investment, and operating costs. At present, most sawdust drying equipment uses air flow dryers, fluidized bed dryers, and rotary drum dryers. Among them, air flow dryers and drum dryers are widely used in sawdust drying, with low investment in air flow dryers, especially when the production is small. However, due to the extremely short drying time of air flow dryers and the inability to classify the thickness, it is easy to cause unstable drying water, blockage, and unreliable operation, resulting in the inability to match the rear equipment and wasting investment and energy.
2、 Device Description:
The new energy-saving wood chip dedicated dryer for drying design and production is a large processing capacity drying equipment. It is designed and manufactured based on the specific characteristics of wood chips, analyzing the impact of the structure of the dryer on the yield, quality, and other factors of wood chips.
Based on the characteristics of sawdust materials, technical improvements have been made to the dryer on how to improve material filling rate and residence time in the cylinder. A new type of combined lifting device and multi-layer sleeve structure have been adopted to prevent air holes in the materials, allowing the sawdust to fully exchange heat and dehydrate; And a coarse and fine particle separation device has been added, greatly improving the heat utilization rate and also increasing the output; Under the same investment conditions, the advantages of drying machines produced by Jianda are very obvious.
3、 Equipment features:
The main characteristics of sawdust drying equipment:
1. Automatic control can ensure that the moisture content of the dried wood chips is uniform and stable.
2. Automatic stone removal and iron removal can ensure that impurities in the dried wood chips do not enter the subsequent process.
The required investment for the equipment is 1/6 of the foreign imported products.
4. The self insulation thermal efficiency of the cylinder can reach over 70% (traditional single cylinder dryers only have a thermal efficiency of 35%), improving the thermal efficiency by more than 50%.
5. Adopting tail drive for smoother and more reliable transmission; Thoroughly changing the phenomenon of frequent slippage caused by the rotation of the supporting wheel and affecting production.
6. Compared to a single drum dryer, it reduces land occupation by about 50%, reduces civil engineering investment by about 50%, and reduces electricity consumption by 60%.
7. Multiple combinations of circumferential lifting materials are distributed to effectively regulate the drying time. The drying effect is good.
8. The desired final moisture index can be easily adjusted according to user requirements.
9. Adopting variable frequency speed regulation to control material flow, the desired final moisture index can be easily adjusted according to user needs.
10. The outlet temperature is low, and the dust removal equipment has been used for a long time, allowing continuous production to proceed to the next process.
11. Equipped with a new energy-saving hot air stove, it is energy-saving, thermally controllable, and easy to operate, reducing coal consumption by about 60%.
