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In recent years, with the improvement of people's living standards, the amount of food waste is increasing, and the treatment of food waste has become a major problem today. Based on the characteristics of food waste, people have also paid attention to the research of food waste treatment technology and equipment. At present, there are three main types of food waste treatment methods:
① The kitchen waste is directly discharged into the sewer after being broken;
② Mainly reducing, also known as drying, uses heating to evaporate water and reduce the volume and quality of garbage;
③ Resource-based, also known as biochemical formula, is the use of bacteria to decompose organic matter and use the remaining residue as fertilizer.
The advantages of the kitchen waste treatment equipment designed based on the horizontal disc drying technology are that it has no secondary pollution, small floor space, low operating cost, and convenient operation. It can be used in restaurants, unit restaurants, residential kitchens, and other units that produce large amounts of kitchen waste.
Drying process of kitchen waste
After being pretreated, sorted and broken, the food waste is transported to the moist heat autoclave for high-temperature cooking, which can not only kill the harmful microorganisms in the food waste; It can also change the water-holding structure and effectively remove the salt and grease in the kitchen waste. The digested material is divided into solid and liquid phases after solid-liquid separation: the solid phase enters the disc dryer and forms feed additive/fertilizer crude product after low-temperature drying. The microbial agent added in the drying process can convert animal protein into hyphal protein and improve the nutrient content. The crude product can form final product after screening, packaging and other post-processing procedures; After the liquid phase is separated from oil and water, the crude oil produced can be processed into green energy - biodiesel. The high concentration organic waste water produced in the process enters the water treatment system for treatment and is discharged after reaching the standard.
Main features of horizontal disc dryer for kitchen waste
① Complete the whole drying process in a closed environment, which is more suitable for food waste and other odorous materials.
② The machine is heated through the jacket of the shell and the internal stirring at the same time, with large heat transfer area and high heat efficiency.
③ The machine is equipped with a stirring device to make the material form a continuous circulation state in the cylinder, further improving the heating uniformity of the material and improving the heat and mass transfer effect.
④ The design is reasonable and advanced, the installation and commissioning are convenient, and it can adapt to various conditions.
⑤ It can reduce labor intensity and improve working environment.
⑥ The main machine automatically feeds and feeds, and the effect of stir-frying, cutting, mixing and crushing is good.