Research And Design Of Compost Trommel Screen

As a kind of livestock manure treatment method,aerobic composting has the advantages of safety,high efficiency and environmental protection,and has been widely applied.The mechanization and specialization of its production process have been improved continuously,so the corresponding requirements of the equipment have been put forward.In this paper,a compost trommel screening machine is designed for the screening operation in composting process,which has certain practical value and theoretical significance.By analyzing the material motion and the screening process in the trommel,a series of quantitative and qualitative conclusions related to the structural parameters and process parameters of the trammel screening were obtained,based on these conclusions and combined with the characteristics and requirements of composting production process,calculated and designed the trommel screening machine.The trommel screening mainly deals with the composting products for livestock and poultry manure,which material bulk density of about 0.7 t/m3,and the trommel screening has a processing capacity of 5 t/h.Calculate the diameter,length and rotation speed of the trammel with mathematical model of trammel design,and designed the key components of the equipment,like stander and cover parts,support wheel and Block-wheel parts,feed and discharge port,etc.use the finite element analysis software check and analyze the sprocket,and the final design parameters are determined.The discrete element method software is used to simulate and analyze the factors that affect the work efficiency of the trommel screen machine,and the original design parameters are optimized according to the test results.The prototype of the equipment is manufactured and tested.The test results show that the design of the compost drum screening machine runs smoothly and the working condition is normal,and conforms to the design requirements.