Solid-liquid separation device for catering kitchen sewage

Abstract

The invention relates to a solid-liquid separation device for catering kitchen sewage. The solid-liquid separation device comprises a tank body; the tank body is internally provided with a solid-liquid separation cabin; the tank body is provided with a water inlet pipe on the top of the solid-liquid separation cabin in a vertical direction; the tank body is internally provided with a first screw conveyor in the vertical direction; the feeding end of the first screw conveyor is located at the bottom of the solid-liquid separation cabin, and the discharging end of the first screw conveyor is located at the top of the solid-liquid separation cabin and extends to the outside of the solid-liquid separation cabin; and the side wall of the tank body is provided with a water outlet pipe. Kitchen sewage is input to an oil-water separation cabin after impurities in the kitchen sewage are precipitated, so that the solid-liquid separation effect of the kitchen sewage can be effectively improved, and the solid-liquid separation device takes a necessary basic effect for subsequent efficient separation of waste oil and sewage in the oil-water separation cabin.

Description

technical field [0001] The invention relates to the technical field of kitchen water treatment, in particular to a solid-liquid separation device for catering kitchen sewage. Background technique [0002] With the development of urbanization and the improvement of people's living standards, the catering industry has developed rapidly, and the problem of catering kitchen sewage has become more and more serious. According to the requirements of CJ / T295-2015 "Grease Separator for Catering Wastewater", Sewage treatment equipment must have the function of removing slag and oil. The conventional process is: first remove slag --- then remove oil --- the water quality reaches the discharge standard, and then discharge to the municipal pipe network. [0003] However, the solid-liquid separation devices of oil-water separation equipment currently on the market almost only filter food residues with a diameter of more than 8 mm, and food residues with a diameter of less than 8 mm flow ...

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Problems solved by technology

[0006] 3. Larger food residues less than 8 mm in diameter will deposit at the bottom of the oil-water separation chamber, so that the food residues at the bottom of the oil-water separation chamber will accumulate more and more, which will have three effects on the oil-water separation chamber: (1) Over time, fermentation will produce (2) The accumulated food residues still occupy part of the volume of the oil-water separation chamber, which shortens the residence time of the sewage in the oil-water separation chamber, and the oil-water separation is not complete, failing to meet the national discharge standards; (3) The accumulated food Food residues need to be manually cleaned and dredged regularly, which increases labor costs

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