Production of profile and beanie products from vinyl plastic

Make an annual material balance and conduct technological calculations in the workshop for the production of profile and molded products from unplasticized polyvinyl chloride with an annual capacity of 1500 tons / year.
Term Paper    Assignment 3
INTRODUCTION    4
1 Properties of vinyl plastic    6
2 Overview of the vinyl plastic    production process 7
3 Process flow diagram    9
4 Technological calculations    11
4.1 Material balance    11
4.2 Technological calculations of equipment    12
4.2.1 Determination of the required number of pneumatic forklifts    12
4.2.2 Determination of the required number of lines for the release of VNE film with a web width of 650 mm    13
4.2.3 Determination of the required number of crushers    14
4.3 Determination of differential pressure in grating and extrusion    head 15
4.3.1 Determination of the shear rate and resistance constant of the    head 15
4.3.3 Determination of the effective viscosity of the    melt 15
4.3.4 Determination of differential pressure    16
4.3.5 Determination of total differential pressure    16
4.4 Determination of the number of revolutions of the screw    17
4.5 Energy calculations    19
CONCLUSION    24
LIST OF SOURCES    USED 26
ANNEX A Technological scheme for the production of vinyl plastic    27
APPENDIX B Indications of the sensitivity of the viscosity of thermoplastic melts to shear rate and temperature    28