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Steel Strip 130m/Min Color Coating Steel Plate Coated Sheet Steel Production Line1
Assembly Line Production Line, Other Assembly Line Production Line, Color Coated, Plate Coated
Liaoning Jinrong Machinery Import and Export Co, . Ltd
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Product Description Steel strip color-coated steel plate production lineDesign, manufacture, supply, installation, and commissioning of a 0.3mm × 130m/min (strip thickness 0.2-1.0) color coating production line for strip steel. The project is under the general contracting of Party B, who is responsible for the integrity of the project. After full discussion and negotiation between both parties, the following technical attachments have been reached:1. Process and temperature requirements (corresponding to the maximum speed of 160 meters) No.TechnologyTemperture1Pre degreasing30-50oC2Roller brush30-50oC3Degreasing+roller brush30-50oC4Wash with water 1#30-50oC5Wash with water 2#30-50oC6Water vapor drying oven100-120oC7Chemical roller coatingnormal temperature8Chemical coating solutionnormal temperature9Passivation drying furnace100-120oC10air coolingnormal temperature11Back paint roller coatingAt room temperature, apply the head on the back12Levelingnormal temperature13ovenFurnace temperature 300 oC/Plate temperature routine 204 (paint manufacturer)14forced air coolingnormal temperature15Water coolingWater cooling method2.Process flow descriptionWorkers use overhead cranes and other equipment to place the coil onto the saddle of the feeding trolley. The trolley lifts and transports the coil to the centerline of the work line and the unwinding machine drum. The unwinding machine drum is expanded by hydraulic pressure to tighten it with the inner diameter of the coil, and then the feeding trolley descends and returns to the storage position to prepare for the next coil operation.The unwinding machine is closely attached to the outer diameter of the coil and has an adjustable buffer roller. When cutting the strapping, it is used to prevent the coil from suddenly releasing. The buffer roller can also assist in feeding the head of the coil into the front clamping machine, which provides the head of the coil to wait for riveting in front of the riveting machine.The prepared strip is guided by the clamping machine and roller conveyor into the support position in front of the riveting machine until all the strips on the other unwinding machine are released. When the tail reaches the riveting position, the riveting machine will rivet the two rolls of strip together.3.The basic equipment composition and main functions of the production line No.NameMain functionsQtyAutomation1uncoilerThe spindle can expand and contract, fixing the standard steel coil. The equipment is powered and used to unfold sheets into rolls with tension. Adjustable unwinding speed and tension; The spindle can be braked.2Manual/Automatic2Entrance roll up cartUsed to assist in coiling, transferring steel coils to the uncoiler and inserting them into the uncoiler spindle. Driven by hydraulic cylinders for walking; Operated by hydraulic system for lifting and box structure.2manual/automatic3Entrance scissorsCutting the joints of steel coils1Manual/semi-automatic4Double riveting machineThis device is used to connect the tail of the previous steel coil strip with the head of the subsequent steel coil strip. The head and tail of the front and rear steel coils and strips are continuously transported by sewing and threading. This device is used for thin gauge galvanized sheets.1Manual/Automatic5Flattening rollerRoll and flatten the seams and curled edges of the strip.1Manual6entry loopedDuring the coil changing period, the uncoiler stops transporting the strip, and the stored steel plates are released by the unit to maintain the normal operation of the process section. After the roll change is completed, work together with the unwinding machine and tensioner 1 # to restore the storage capacity of the sheets in the unit while maintaining the normal speed of the process section. Effective coverage of approximately 180 meters, chrome plated roller1automatic Tensioning machine Automatic7Tensioner 1#Adjust the tension of the sheet to the uncoiler section during normal operation, and provide tension to maintain stable operation of the production line during coil changing. Pressure roller with cylinder power1 8Tensioner 2#Adjust the tension of the pre-processing section, double roller1 9Tensioner 3#Tension between the coating and primer furnaces in conjunction with tensioner 4 #1 10Tensioner 4#Adjust the tension inside the primer curing oven,1 11Tensioner 5#Adjust the tension inside the precision coating curing furnace1 12Tensioner 6#Adjust the tension of the sheet to the coiler section during normal operation, and provide tension to maintain stable operation of the production line during coil changing. Pressure roller with cylinder power.1 centering machineuring the transportation process, the steel strip may deviate due to various reasons. The centering machine plays a corresponding correction role in the deviation of the steel strip movement, ensuring the normal transmission of the steel strip. Automatic13centering machine1#Control the centering operation of the strip at the initial coating inlet section1hydraulic servo14centering machine2#Control the centering operation of the water-cooled strip during initial coating1Hydraulic servo centering machine3#Control the centering operation of the fine coating inlet strip1 centering machine4#Control the centering operation of the precision coated water-cooled strip1 centering machine5#Control the centering operation of the outlet strip of the loop1 4. Technical specification description of single machine equipment4.1 Inlet section equipmentEquipment Overview:Main parameters:Carrying capacity of 15 tonsAllow minimum outer diameter of steel coil ￠ 508mm and maximum coil diameter ￠ 1500mm4.2 UncoilerEquipment Overview:Cantilever pyramid unwinding machine, used to unfold raw material rolls on the production line. The expansion and contraction of the spindle is completed by the hydraulic system. The rotation of the spindle is driven by a motor and a reducer.Adjustable unwinding speed and tension; Anti tension braking of spindle motor.Equipment composition:The main body of the equipment includes the spindle, sector plate, shaft end rotating pair, machine base, spindle drive system, hydraulic expansion and contraction system, pressure roller, pressure roller position detection, etcMain parameters:Open tension: Max.800NSleeve specification: ￠ 508 Effective length 1800mmSteel coil outer diameter: ￠ 508 mm - ￠ 1500mmSteel coil weight: 15tLinear speed: (frequency conversion, braking) 160m/minTransmission mode: motor reducer transmissionVariable frequency speed: regulation methodMotor power: 22KwLarge axis expansion and contraction hydraulic expansion and contractionExpansion and contraction of roll diameter 488-518mmHydraulic working pressure 10Mpa4.3 Entrance rolling trolleyEquipment Overview:Transport steel coils during up and down rolling. Manually place the steel coil, and then use hydraulic transmission to rotate the roller on the track. Equipped with mechanical and electrical limits. The lifting and lowering of the steel coil after it is in place is completed by the hydraulic cylinder.Equipment composition:The main body of the equipment includes the trolley frame, trolley walking follow-up telescopic cover plate, material rack, walking mechanism and its hydraulic drive system, hydraulic lifting system and guide rail, etc.Main parameters:Carrying capacity: 15 tonsMoving speed : 135mm/SMoving distance: 4500mm (as designed)Lifting stroke : 650mmLifting speed : 50mm/S4.4 Two-roll coating machine (bottom back coating machine, fine back coating machine)This equipment is used to apply back paint to the surface of strip steel. The equipment adopts the form of reverse coating. The reverse coating head adopts a three roll form, consisting of a feeding roller and a coating roller. The front coating head completes the coating operation on the support roller, and the back coating head completes the coating operation at the exit of the avoidance roller.The reverse coating head is designed with a mechanism to avoid welding seams, with manual avoidance control and automatic control on both sides to complete the avoidance action within 2 seconds. Equipped with a paint circulation mixing system, the paint pan can be manually adjusted (worm gear) to ensure its uniformity throughout the entire operation process.The roller coating machine adopts forward and reverse roller coating mechanisms, mainly composed of roller drive, storage tray and other parts. The roller part is the core of completing the roll coating operation of building material color plates, which consists of feeding rollers, coating rollers, guide rollers, and lifting rollers. The function of the roller coating roller is to apply the coating onto the surface of the steel plate, requiring uniform adhesion of the coating. The outer surface lining of the roller coating roller is made of high-performance polyurethane rubber material with moderate hardness and elasticity. Control the amount of paint on the feeding roller, and then transfer the paint onto the roller coating roller. The coating roller controls the thickness of the paint within the set range by adjusting the speed through the pressure (roller gap) between the rollers. The supporting roller has sufficient rigidity to provide support. The driving part of the rollers is independently variable frequency driven by multiple sets of motors, allowing the rotation direction and speed of each roller to be freely adjusted.Equipment composition:The main body of the equipment includes a rack, which is composed of an installation plate, a connecting rod, and a foundation seat; Supporting rollers, including bearing pairs at both ends and connecting flanges;The reverse coating head consists of a feeding roller, coating roller, lifting roller, bearing seat, coating head guide rail, synchronous shaft, worm gear pair, etc;The reverse avoidance mechanism consists of a lifting cylinder, slider, guide rail, connecting block, etc;Parameters:Line speed: 20-130m/minRoller coating roller outer diameter: 320mmRoller coating roller effective working surface: 1500mmNumber of rollers: 2Roller coating roller line speed: 50-120%Roller coating roller motor power: 11kwQuantity: 2 unitsOuter diameter of feeding roller: 270mmEffective working surface of feeding roller: 1500mmNumber of rollers: 2Feeding roller line speed: 30-100%Feeding roller motor power: 7.5kwQuantity: 2 unitsOuter diameter of supporting roller: 600mmEffective working surface of roller: 1500mmNumber of rollers: 1Outer diameter of lifting roller: 300mmEffective working surface of roller: 1500mmNumber of rollers: 1Coating thickness: 5-15 μ m4.5 Oven schemeDuring the production of the steel plate color coating production line, the steel strip coated with paint enters the drying room to cure and dry the paint. The organic solvents in the paint evaporate in the drying room to form organic vapor, which is discharged with the exhaust system of the drying room and pollutes the surrounding environment. Therefore, it is necessary to treat the organic pollutants discharged from the drying room.The organic pollutants contained in the gas discharged from the drying room generate the same amount of heat as the combustion heat of oil/gas (natural gas, diesel, etc.) through catalytic oxidation. Therefore, in addition to the energy contained in its own temperature, the organic pollutants contained in the exhaust gas discharged from the drying room are also discharged. This not only wastes energy but also pollutes the environment.This plan aims to achieve energy conservation and environmental protection by effectively treating organic pollutants, so that the heat generated during the treatment can be used as a heat source for the curing furnace.5.Energy consumption table of 30m/min Roller coating production linea. Output of supplying waterSoftened water 2m3//h, deionized water 2m3//hb. Shrinking air volumeTotal amount: 6M3/min (one for backup and one for use), pressure 0.4-0.8Mpac.Natural gasDesign total capacity: 350Nm3/h (maximum consumption calculated based on calorific value of 8500 kcal/Nm3), main gas supply pressure of 1000-1500 mm water column, and working pressure at the burner of 800-1000 mm water column.d. Electricity80V 50Hz three-phase five wire system, with a designed installed capacity of 1000Kw. Please refer to the power supply system allocation table for details.Company Profile Liaoning Jinrong Machinery Import and Export Co., Ltd. is a large group company with its own import and export rights, integrating industry and trade. The registered capital of the company is 180 million RMB. The company's subsidiaries include Metallurgical Equipment Manufacturing Company, Electric Furnace Equipment Manufacturing Company, Electrical Equipment Manufacturing Branch, Mechanical Processing Branch, and Metallurgical Design and Research Institute Our company can undertake turnkey projects for the design, manufacturing, installation, commissioning, and trial production of various metallurgical equipment. Our company can provide various metallurgical equipment and machinery such as mining machinery, ironmaking blast furnaces, sintering machines, coking coke ovens, converters, electric arc furnaces, ladle refining furnaces, continuous casting equipment, steel rolling heating furnaces, steel rolling production lines, steel structure factories, and cranes. Various types of mechanical equipment can also be provided Our company is a direct agent for large steel mills such as Ansteel, Bengang, and Fushang. We have a complete range of steel products, including pipes, plates, profiles, and wires, all of which are available in stock. If there are special specifications, material requirements, etc., we can organize and arrange ordering and selection, schedule production and rolling to ensure supply.Our company has a history of 30 years and has established friendly contacts with over 120 countries and regions, as well as engaged in various aspects of cooperation. We welcome customers from various countries to visit and inspect our company.Address: :1-51-901-3041, Floor 9, Jiangsu Building, Qianyuan Emerging Market, Tiexi District, Anshan City, Liaoning Province Total Number of Staffs 585Total Number of Managers 40Total Number of Technical Staffs 160Total Number of QC Staffs 15Total Number of workers 310Total Number of other staffs 60Contact person Mr .Su Position president Tel 0086-13700125807
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