Hydrolysis-impurity removal device and method for fruit-and-vegetable waste slurry

Abstract

The invention provides a hydrolysis-impurity removal device and method for fruit-and-vegetable waste slurry. An impurity removal process and a hydrolysis process of the fruit-and-vegetable waste slurry are integrated, the fruit-and-vegetable waste slurry and inoculation liquid are fed through a feeding pipe at the same time and enter a hydrolysis impurity removal tank, and reflux is generated under the action of a feeding baffle; relatively heavy impurities are settled and collected in a conical collecting groove at the bottom of a tank body, lightweight impurities float on an upper layer of a liquid level, and a material liquid level is kept higher than a discharge port; the fruit-and-vegetable waste slurry is hydrolyzed and acidified in a tank under the action of the inoculation liquid, and the hydrolyzed fruit-and-vegetable waste slurry is discharged from the discharge port; materials in the hydrolysis impurity removal tank are continuously pumped out from the upper part of the tank body and circulate to the lower end of the tank body, and the overall homogenizing effect of the materials in the tank is enhanced; and the upper part of the tank body is provided with a slag discharging device and a scum washing measure, so that bridging or blocking in a scum hopper is prevented, and lightweight impurities in the tank can be effectively discharged.

Description

technical field [0001] The invention belongs to the technical field of fruit and vegetable garbage treatment, and in particular relates to a hydrolysis-impurity removal device and method for fruit and vegetable garbage slurry. Background technique [0002] In recent years, with the acceleration of urbanization and the improvement of people's living standards, the amount of fruit and vegetable waste has also increased sharply. The random discharge of a large amount of organic waste has caused serious pollution to groundwater and the surrounding environment. The use of anaerobic fermentation technology to treat fruit and vegetable waste has become a necessity for environmental protection and a trend of sustainable social development. [0003] At present, large-scale fruit and vegetable waste treatment projects in China mainly use wet anaerobic fermentation systems for resource utilization, and wet anaerobic fermentation has certain requirements for raw materials, and it is nec...

AI Technical Summary

Problems solved by technology

Due to the perishability and high water content of fruit and vegetable waste, there are many problems in the processing of fruit and vegetable waste by the above-mentioned equipment. For example, although the pulping and screening machine can make fruit and vegetable waste into organic slurry, the removal rate of plastics, tapes and other sundries is not high. High, and there is a phenomenon of material running out of the slag discharge port; because fruit and vegetable waste is perishable in drum screens or vibrating screens, sundries and rotten materials are easy to block the screen, the removal efficiency of sundries is low, and frequent manual cleaning is required, which seriously affects the project normal production

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