System for cooperatively treating kitchen garbage by utilizing cement kiln and treatment method thereof

Abstract

The invention discloses a system for cooperatively treating kitchen garbage by utilizing a cement kiln. The system comprises a pre-treatment device, a deep treatment device, a biological treatment device and a cement kiln firing system, wherein the pre-treatment device comprises a plate feeding machine, a crusher and a roller sieve, which are connected in sequence; the deep treatment device comprises a photoelectric sorting machine and a biomass crushing separation machine; the system further comprises a plastic granulation machine and a cement raw material mill device; the biological treatment device comprises an anaerobic fermentation tank and a combined membrane system, which are connected in sequence; an output opening of the roller sieve is connected with the photoelectric sorting machine and the biomass crushing separation machine respectively; the biomass crushing separation machine is connected with the anaerobic fermentation tank, the cement raw material mill device and the photoelectric sorting machine at the same time; the output opening of the photoelectric sorting machine is connected with the plastic granulation machine and the cement kiln firing system respectively;the anaerobic fermentation tank and the combined membrane system of the biological treatment device are connected with the cement kiln firing system. The invention further discloses a treatment methodof the kitchen garbage treatment system.

Description

technical field [0001] The invention relates to a technology for disposing of urban kitchen waste, in particular to a system for co-processing kitchen waste by using a cement kiln, and also relates to a disposal method of the above kitchen waste disposal system. Background technique [0002] With the expansion of the city scale, the generation of food waste has a greater and greater impact. On the one hand, the land available for landfill is becoming scarcer, and on the other hand, kitchen waste and food waste have a high water content. Therefore, whether urban and rural domestic waste including kitchen waste and kitchen waste can be efficiently reduced, recycled, and harmlessly disposed of has become an urgent problem to be solved. [0003] The current technology for disposing of kitchen waste is MBT (Mechanical Biological Treatment, mechanical-biological treatment) technology, which combines mechanical or physical methods (cutting, crushing, sorting) with biological proces...

AI Technical Summary

Problems solved by technology

Both routes have their own advantages, but in the first route, due to the high salt content in the garbage, the accumulation of salt will lead to high salt content in the finished fertilizer, which will easily damage the soil ecological environment, and the problem of harmful organic matter and heavy metals cannot be solved well. Solved, there is a security risk

The difficulty of the second route is: 1. During the pretreatment and aerobic composting process, the odor is difficult to control; 2. The inorganic residue and non-degradable plastic produced during the treatment process still need to be landfilled; 3. Aerobic The energy consumption of the composting process is high; 4. The biogas residue needs to be further processed;

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