Design and process test of microwave cracking equipment

doi:10.14088/j.cnki.issn0439-8114.2023.08.025

Abstract

Abstract: In order to improve the recycling of agricultural waste, agricultural equipment for the recycling of cracked and carbonized waste crops was designed. The maximum microwave power of the equipment was 3.6 kW, and the frequency was 2.45 GHz, which was commonly used in industry. The diameter of the cracking chamber was 120 mm, and the height was 700 mm. HFSS was used to simulate the electric field in the cracking chamber, and the electric field distribution in the cracking chamber was relatively uniform. The three factors and three levels interactive technological test was designed. Taking cracking chamber diameter size, microwave power and cracking temperature as the test factors, the primary and secondary test factors could be determined as cracking chamber diameter size>microwave power>cracking temperature through the test. Through the Design-Export optimization, the optimal test scheme was microwave cracking chamber diameter of 81.84 mm, microwave power of 1.95 kW, and cracking temperature of 325.51 ℃, and the carbon yield was 30.16%. After test verification, the carbon yield of the cotton stalk was 29.87%, which was slightly different from the software optimization value, so the equipment met the design requirements.

Key words: microwave cracking equipment, design, simulation, carbon yield

CLC Number:

LUO Wen-jie, ZHANG Jia-xi, LI Hua, LIU Na, WANG Yan. Design and process test of microwave cracking equipment[J]. HUBEI AGRICULTURAL SCIENCES, 2023, 62(8): 155-159.

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