How does garbage turn into treasure through a vibrating screen?

A minute ago it was delicious food, but a minute later it became trash. Due to dietary culture and dining habits, excessive kitchen waste has become a common phenomenon. According to the data from the Beijing Municipal Development and Reform Commission, Beijing produces 1200 tons of kitchen waste every day. According to statistics from the Solid Waste Pollution Control and Resource Utilization Research Institute of the Department of Environment at Tsinghua University, Chinese cities generate no less than 60 million tons of kitchen waste annually.

Nutrient rich kitchen waste is a valuable renewable resource with the dual characteristics of waste and resources, and can be said to be a typical "misplaced resource.".

So what are the things in kitchen waste that can be efficiently utilized? What role can a vibrating screen play in handling kitchen waste?

The editor interviewed elites from the Ministry of Foreign Trade and learned that currently, countries such as the United States and New Zealand are quite proficient in filtering residual oil (commonly known as "gutter oil" in China) from kitchen waste.

Foreign countries generally pay attention to the cleanliness and environmental protection of cooking oil, and do not fry food repeatedly with oil, resulting in a large amount of edible waste oil. In order to recycle and turn waste into treasure, they filtered out these oils from kitchen waste, processed them into diesel, aviation oil, drilling lubricating oil, etc., and applied them to multiple industries such as automobiles and aviation, making them more environmentally friendly and green.

In the process of filtering kitchen waste, the application of vibrating screens naturally occupies an important part. According to the sales statistics of  Machinery, the main products currently used in this process in foreign countries are the rotary vibrating screen, horizontal air flow screen, and automatic slag discharge filter produced by  Machinery with a higher procurement frequency.

Rotary vibrating screen: Any particle, powder, or mucus can be screened within a certain range. Sieve fine to 1000 mesh or 0.002mm, filter down to 2 microns. High efficiency, exquisite and durable design, easy to change mesh, simple operation, and convenient cleaning. Impurities and coarse materials are automatically discharged and can be operated continuously.

Horizontal airflow screen: The screen is cylindrical and placed inside the machine body. The material is mixed with the airflow through a spiral conveying system and atomized into the mesh cylinder. By using the blades of the wind turbine inside the mesh cylinder, the material is subjected to both centrifugal and whirlwind propulsion forces. The raw material mixture enters the machine body from the airflow inlet, and is then subjected to intelligent turbine force to disperse the raw materials in an orderly manner through the composite screen, and enters the next process along the wind path. Unqualified impurities and foreign objects are intercepted and discharged through an automatic slag discharge port to achieve separation.

Automatic slag removal filter: The GLJ series automatic slag removal filter is developed by Company based on common problems in solid-liquid separation and filtration in various industries, and introduced international advanced technology in the industry. It is suitable for filtration and separation processes in industries such as oil and fat, chemical industry, and medicine. Especially, it solves the problems of difficult filtration and slag removal of machine pressed crude oil such as cottonseed, rapeseed, and castor in the oil and fat industry.