Mechanical excrement biochemical treatment system

Abstract

The invention discloses a mechanical excrement biochemical treatment system. The excrement biochemical treatment system comprises an excrement unloading pool, a coarse grillage machine, a fine grillage machine, a sand settling device, a superfine grillage machine and a chemical filling device. The excrement biochemical treatment system comprises an excrement unloading and storing step, a coarse material separating step, a fine material separating step, a sand settling biochemical treatment step and a superfine material separating step. One-time pouring of a large-volume excrement unloading vehicle can be met by the independently arranged excrement unloading pool at least, and the unloading is rapid and convenient. The sand settling biochemical all-in-one mechanism occupies small area, can also carry out settling treatment on biochemical crystals when carrying out settling treatment on sand in original substances, and has a remarkable sand settling effect. The removal of ammonia elements is favorable to aerobic reaction during excrement purifying treatment and subsequent aerobic reaction effect. The timely discharging of sand deposits is realized by a sand fetching screw. After produced wastes are compressed, the size is reduced. Large-grain substances left by the coarse grillage machine can be pulverized again by the creatively arranged pulverizing type grillage machine.

Description

technical field [0001] The invention relates to the technical field of urban feces treatment, in particular to a mechanized biochemical treatment system for feces. Background technique [0002] At present, the feces in the concentrated areas such as towns and cities adopt the mode of cesspit storage and unified transportation, that is, the feces produced by the residents are temporarily stored in the prefabricated cesspit, and then transported to the designated place by external suction (unloading) manure trucks. For example, in areas with small populations such as rural areas, most of the feces produced are directly discharged or treated as fertilizer for crops. [0003] In view of urban areas, how to carry out effective and harmless treatment is a problem that everyone is more concerned about now. With the acceleration of urbanization and the strengthening of environmental sanitation protection, the treatment of feces has become a top priority. In the current technology, ...

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Problems solved by technology

In the current technology, such as the Chinese utility model patent "a kind of urban public toilet excrement, septic tank sludge scum centralized treatment station device" (notification number is CN201245532Y) whose patent number is CN200820116351.9; Liquid separator, centrifugal dehydrator, receiving tank, lifting pump, rotary solid-liquid separator, screw pump, horizontal centrifugal dewatering machine, and manure tank are arranged in a row in sequence, and the front of the receiving tank is equipped with a grid decontamination There is also a dosing pipe connected to the pipeline behind the screw pump, and a pipeline connected to the urban sewage pipe network is installed behind the rotary solid-liquid separator and the horizontal centrifugal dehydrator; this technology cannot effectively remove the feces. Ammonia element, its smell spreads to the surrounding area, which is not conducive to the protection of the surrounding environment; equipped with a solid-liquid separator and a grid decontamination machine, without finely treating the feces, it is easy to cause pipeline blockage; so there are still big problems in this technology , which is not conducive to subsequent oxidation treatment, that is, it cannot meet the purpose of harmless final treatment of feces

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