As the front-end technology of garbage disposal, garbage sorting technology is an indispensable procedure for the reuse of resources and the subsequent processing chain of garbage disposal. And especially in the chain of garbage incineration, sorting technology is particularly important. Garbage sorting can not only improve the utilization rate of resources to achieve the reuse of resources, but also improve the efficiency of garbage incineration.
The waste sorting technology can choose different ways of different wastes. Polaris Energy Conservation and Environmental Protection Network have sorted out the main technologies of waste sorting. The waste sorting technology can be divided into the following types:
Air & Ballistic separator
The basic principle of wind separation is that the airflow takes the lighter materials upward or the horizontal direction to a farther place, while the heavy materials are settled because the ascending airflow cannot support them, or thrown closer in the horizontal direction due to inertia distance. The wind separation process is based on the sedimentation law of various solid particles in the air. Air separation is mainly to recycle recyclable components such as paper and plastic.
Magnetic separation technology is mainly used for the classification of mineral resources. The working principle of magnetic separation is that after other materials are selected into the separation space of the magnetic separator, they are subjected to magnetic force and other mechanical forces (such as gravity, centrifugal force, friction force, medium) Resistance, etc.).
Bounce sorting machine is conveying equipment with separation function designed for sorting inorganic particles in the garbage after coarse crushing. The machine utilizes the characteristics of the crushed garbage materials, and the design of the conveyor belt bounce function conveys the materials on one side while separating the inorganic particles or other hard particles. The separated particles move in the opposite direction to the transport materials to achieve the purpose of separation. Bounce sorting is mainly to select components such as batteries, ceramics, and masonry.
Sorting is mainly based on the density of objects, and garbage with different density values is classified.
Domestic waste automatic sorting technology is a relatively mature domestic waste sorting technology. This technology combines mechanical, automatic control, microbiological and other methods, and uses an original mechanical-biological sorting method and device in a fluid environment, sewage comprehensive wetland treatment cycle The use of technology, TR microbial detoxification, and other technologies, the entire system has a high degree of automation, and there is little direct human participation. The entire system has a total of 22 classification exports, which can classify (or separate) mixed domestic waste into oversized pieces of waste, ferrous metals, and non-ferrous metals. 11 substances including metals, plastics and foams, flexible blocks, perishable organics, non-perishable organics, masonry glass, sand, waste batteries, landfills, etc., the waste recycling rate reach more than 85%, and the disposal project The sewage, dust, bacteria, and viruses in the plant have been treated and controlled.
In order to further improve the level of municipal solid waste sorting technology, it is also necessary to optimize and innovate the automatic sorting technology of municipal solid waste recycling, improve its sorting efficiency and sorting accuracy, and reduce system construction costs and operating energy consumption, material consumption and Management input. If the optimized and innovative municipal solid waste resource separation technology is adopted, more than 90% of the components in the waste can be used for resources, greatly reducing the amount of waste landfill, and prolonging the service life of the municipal solid waste landfill. Garbage sorting system for the garbage disposal to achieve harmless, reduce the goal of providing greater possibilities.