Process for preparing regenerated fodder from kitchen wastes

Abstract

The production process of regenerated feed from kitchen wastes includes the technological steps of: feeding kitchen wastes as material into material bin with spiral pump; conveying the material with a scraper conveyer and dewatering in vacuum press filter; conveying with rubber belt conveyer, manually sorting and magnetically sorting to eliminate impurity; crushing in crusher with hammering and shearing function; conveying with spiral conveyer and high temperature sterilizing and drying in a stove; re-crushing in one other crusher; pelletizing or puffing; and final packing. The present invention can convert kitchen wastes with water content as high as 85 % into concentrated feed for animal and with rich nutrients and water content less than 14 %.

Description

technical field [0001] The invention relates to a feed preparation process, in particular to a preparation process for converting food and kitchen waste that is prone to decay and contains unclean components and a large amount of water into nutritious animal concentrate feed. Background technique [0002] The amount of urban kitchen waste in my country is large, and there are many sundries and high quality. It is wet, sticky, greasy, smelly, and easy to deteriorate. These properties and characteristics pose a series of technical problems that must be solved for the reception of kitchen waste, transportation between processes, dehydration, crushing, and even sterilization and drying. Although there are many ready-made technical methods for reference in the harmless treatment of domestic waste and feed processing, there is a certain distance between the applicable conditions and the preparation requirements of recycled feed from kitchen waste, which cannot be directly applied ...

AI Technical Summary

Problems solved by technology

The sorting of food waste generally adopts the process of sorting sundries first and then dehydrating, and dehydration generally adopts the centrifugal method, which leads to the problem that the operating environment of the sorting process is harsh and the sorting of sundries is not easy to complete

In addition, the centrifugal dehydration method is not suitable for materials mixed with hard debris such as bones and broken bowls, and it is difficult to achieve continuous production

The transportation of food waste raw materials from the silo to the dehydrator generally uses a screw conveyor. Because there are many sundries in the food waste, there are also plastic bags, small towels, bottle caps, broken bowls, etc., which cause screw conveyors Frequent machine failure

The drying of food waste generally adopts the method of hot air circulation heating. The disadvantage is that the heating and drying method is single. In order to improve the drying effect and temperature uniformity, the only way to increase the amount of hot air is to increase the accumulation of static parts such as the furnace frame. Mixing of raw materials and coke materials, shutdown and cleaning of the furnace, etc.

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