Automatic LPG Gas Cylinders Powder Coating Line, High Performance Powder Coating Spray Booth^

Automatic LPG Gas Cylinders Powder Coating Line, High Performance Powder Coating Spray Booth^1. Powder coating line designNoNameDetails1Workpiece Gas cylinder2Workpiece materialMetal 3Max. workpiece sizeΦ300×H570(mm)4Workpiece weight≤30kg5Braced chainQXT250/50Kg light common chain6Machine capacity2000pcs/12hours7Hanging typeOne cylinder every two pitch, that means one cylinder per 500mm.8Linear speed2000pcs÷12h÷60min×0.5m/hang=1.4m/min9Heating sourceNature gas(LPG)10Location areaSee layout drawing, beam bottom height 8.5 meters 2. Process flow diagramThis line consists of powder coating chamber, booth, curing bake, suspend conveyor and electric control system.NoNameTransit timeWorking temperatureOperation 1Loading  RTManual 2Powder coating RTAuto+manual3baking17-18min180-190ºCHeated air circle4cooling20min  5unloading  Manual  3. Curing bakeThe drying tunnel consists of three parts: drying tunnel. Heating system and exhaust system.3.1 Drying tunnel NoNameTechnical parameter1Overall structure Bridge type2No of tunnels43Size of the inner tunnelL14×W3.2×H2.1(m). Leg height 2.5meters4Thickness of the insulation150mm 5Material of the insulationHigh quality rock wool board6Unit weight of the insulation100Kg/m37Material of the inner plateδ0.8 galvanized steel sheet8Metarial of the outer plateδ0.8 color sheet9Structure of inner and outer plateAssembly structure10Material of the inner angle plateδ1 galvanized steel sheet11Material of the outer angle plateδ3 hot-rolled sheet with paint12Supporter material of the tunnelδ3 carbon steel sheet, edgefold with paint13Outer temperature of the tunnelLower than environment temperature 15ºC14Inner temperature of the tunnel180ºC15Drain cracking-offTop of the tunnel 3.2. heating system: consists of heating chamber, burner, heated air recycling fan, return airway and temperature control system.(1)heating room: an access door is on the side of the heating chamber for future repairing.NoName Technical parameter1Position and number of heating roomBottom of the bake tunnel, 1 set2Heating room configuration300000 calories, 1 set3Inner plate of the heating roomGalvanized steel, δ14Outer plate of the heating roomCold-roll steel sheet, δ1.55Thickness of the insulation150mm6Material of the insulationHigh quality rock wool board7Unit weight of the insulation100Kg/m38Material of the inner angle plateδ1 galvanized steel sheet9Material of the outer angle plateδ3 hot-rolled sheet with paint10Supporter material of the tunnelδ3 carbon steel sheet, edgefold with paint11Structure of inner and outer plateAssembly structure (2) burner1 set, 300000 caloriesGas consumption: 10-15m3/hBrand: Italian Riello RS34  (3)burning tankHeat exchanger is used to transfer the heat to heating room, then hot-air blower will bring the heat to the tunnel. Adopts direct-fired heating, the burning tank is stainless steel with high temperature filter.  (4)Thermal cycling fan: adopts special air-cooled centrifugal fanNoNameParameter1Model GCF-630C2Rotation speed1250r/min3Air flow volume13500m3/h4Total pressure900Pα5Motor power5.5KW6Fan structureImpeller is in the heating room7Insulation thickness150mm9Impeller material16Mn10No. Of fans1 set11Fans supplierShanghai Shuyuan or Kewangda (5) Air delivery & returning duct  NoNameParameter1Hot air recyclingInternal recycle, no outer tubes2Air delivery typeUnder floor air delivery3Air returning typeUnder floor air returning4Duct materialGalvanized steelδ15No of air regulation plate1 set6Material of air regulation plateGalvanized steelδ1 (6) Temperature control systemDrying tunnel uses digital temperature controller to adjust the temperature automatically, it can display and control the drying tunnel temperature in real-time.The temperature measurement uses platinum resistor temperature sensor.The drying tunnel temperature can be adjusted continuously from normal temperature to 200°C.  3.3. Exhaust pipeThe entrance/exit of the drying tunnel on the top equips with exhaust pipe and  butterfly valve, it is used for draining the exhaust gas of the drying tunnel.The material of the exhaust pipe is δ1mm galvanized sheet.  4. Hang type conveyorHang type conveyor consist of driving device, tension device, variable-frequency governor, chain, straight conveyor, bend conveyor, temperature flexible conveyor, inspection conveyor and lubrication system etc.Variable -frequency governor uses Mitsubishi. The speed is 1.4 m/min.The lubrication system uses automatic oil drop device.Hang type conveyor equips with 1 set driving device, 1 set weight-loaded type tension device, using frequency to adjust speed.  NoNameTechnical specification1Driving device modelQXT-2502Driving device quantity1 set3Overload protection for driving deviceAdjustable safety clutch+travel switch4Driving device power3.0KW5Tension device typeWeight-loaded type6Tension device quantity1set7Turning radius of tension device≥R800(mm)8Frequency converterMitsubishi 1 set9Conveyor chain length125m10Conveyor chain pitch250mm11Hoisting we