Method and device for treating waste bread

Abstract

[PROBLEMS] To provide a method and a device capable of efficiently crushing and drying a waste bread into fine powder and granular material with low moisture content so that the waste bread can be used as a mixed feed for livestock. [MEANS FOR SOLVING PROBLEMS] The waste bread (A) is fed into a primary drying passage (1) having, therein, rotary crushing vanes (2b) and a hot air injection nozzle (3a) having an injection port facing a delivery direction and crushed by grinding down the waste bread (A) by the tip faces of the rotary crushing vanes (2b) and the inner bottom face of the primary drying passage (1), and water content in the waste bread (A) is evaporated and removed by the heated primary drying passage (1) and hot air from the injection nozzle (3a). In addition, the waste bread (A) is supplied into a secondary drying passage (4) through a net-like body (7a) while more finely crushing the bread by a rotary cutter (20) and further dried in the secondary drying passage (4).

Description

technical field [0001] The present invention relates to a method and apparatus for disposing of waste bread, which can dispose of bread produced due to production loss in the manufacturing process, bread discarded after being sold in stores, bread crumbs produced during cooking or leftovers, etc. The discarded bread is pulverized and dried to form a granular body that can be used for livestock feed and the like. Background technique [0002] In recent years, with the development of the catering industry, the amount of food waste discharged from enterprises has been increasing. In order to limit the increase of food waste and protect the global environment, the Food Recycling Law was implemented in May 2001, which stipulated that the recycling rate Raised to a minimum of 20%. [0003] In addition, the consumption of bread has been increasing year by year due to changes in Japanese eating habits. Along with this, in addition to the leftover bread crumbs provided by the above-...

AI Technical Summary

Problems solved by technology

[0006] However, although the above-mentioned system can process waste bread and bread crumbs together with other kitchen waste generated from households, it cannot only treat waste bread and bread crumbs in large quantities, and its treatment process is also complicated and cannot be effectively processed. The processing of discarded bread and bread crumbs etc. (hereinafter referred to as discarded bread) discharged in large quantities as described above is performed efficiently, and a method for effectively processing discarded bread is desired.

Images