年产2000吨木器漆用高性能聚氨酯的生产工艺设计

Production Process Design of High-Performance Polyurethane forWood Coatings with an Annual Output of 2000 Tons.AbstractThis design is the production process design of high-performance polyurethane for woodlacquer with an annual output of 2000 tons.Refer to the materials to understand theapplication status of polyurethane in wood paint.After referring to the materials,the solutionpolymerization method was used to generate polyurethane prepolymer and epoxy resinrespectively,and then silicone and epoxy resin were embedded into the polyurethane chainthrough copolymerization.Select the most suitable raw material,polymerization method,separation and purification method,production equipment,etc.Calculate the material andheat of production,select the appropriate equipment and put it into production.Draw theprocess flow chart,material flow chart and plant plan,and draw the section chart of reactionpolymerization kettle.After analyzing the actual situation of polymerization reaction,the process of solutionpolymerization was adopted to prepare polyurethane prepolymer and epoxy resin respectively.The process of block copolymerization was adopted to produce mixed copolymerizedpolyurethane,silicone and epoxy resin,and then the polyurethane with epoxy resin andsilicone chain segment was expanded and sealed.MDI:PTMEG:ATPS:BDO:KH-550:BPA:ECH:30%Sodium hydroxide solution:Bismuthneodecanoate:CP:TL=35:11:4:2:2:3:2:3:1:34:5.Through calculation,The input of MDI is606.28kgB,The input of PTMEG is 200.78kgBl,The input of ATPS is 69.47kgB-!Theinput of BDO is 29.77kg.Bl,The input of KH-550 is 29.77kg.B1,The input of BPA is47.37kgB,The input of ECH is 32.84kgB-1,The input of 30%NaOH is 47.08kgB,Theinput of Bismuth neodecanoate is 9.89kgB-,The input of CP is 592.16kgB,The input ofTL is 86.47 kg'B.Raw materials are put into one batch every 5 hours and work for 300 daysa year(24h/d).Draw the production process flow chart,select the optimal equipment modelthrough the raw material feeding quantity,glass fiber reinforced plastic storage tank(DRZ-500,DRZ-1000,DRZ-1600,DRZ-2500,DRZ-3800,DRZ-4500),dissolution kettle(XN-RJG300),dehydration kettle (ZK300),stainless steel reaction kettle (GD1-300,GD1-3000),stainless steel frame agitator,Pump (3DP32-25-160),settling tank (S-3000)