关键词: 食用菌, 废旧菌袋分离机, 切割粉碎装置, 静力学分析, 模态分析

Abstract:

The production of edible fungi in China has increased significantly in recent year, leading to a substantial challenge in the disposal of waste bacterial bags. To address the environmental pollution caused by these waste materials, a novel cutting and crushing device was developed to enhance the efficiency of cutting, separation, and removal in waste bacterial bag processing. Static and modal evaluations of the cutting and crushing device were carried out using finite element method. Additionally, an orthogonal test was used to investigate the effects of water content, feed rate, and storage time of the waste bags on the device's performance. The results showed that the deformation of the cutting and crushing device was minimal, and its structural strength met the basic operational requirements. Furthermore, no resonance phenomena were observed during operation, and the induced excitation frequency remained below the first six order natural frequency ranges. The orthogonal test identified the optimal combination of parameters given by a moisture content of 41%, a feed rate of 550 bags/h, and a storage duration of two months. Under these conditions, the removal rate of waste bacterial bags reached 97%. This study provides a theoretical foundation for the design and optimization of cutting and crushing devices, as well as for performance analyses of waste bag separators.

Key words: edible fungi, waste bacterial bags separator, cutting and grinding device, static analysis, modal analysis