2022we Semi Automatic Powder Coating Line/Painting Line for Sheet Metal/Powder Coating Oven/Powder Spray Coating Line Manufacturer/Powder Coating Line Suppliers

2022WE Semi automatic powder coating line/painting line for sheet metal/powder coating oven/Powder Coating Line Manufacturer/Powder Coating Line Supplier

1.3 Design Idea(example only)

1.3.1 The equipment must be reliable in operation, simple in operation and convenient in maintenance.

1.3.2 All supporting parts, materials and electrical components are selected with advanced technology and high-quality products, and have anti-explosion functions. Imported parts are selected for key equipment and materials such as burners and some electrical components to ensure the overall performance and quality of the equipment.

1.3.3 Fully consider the safety of equipment operation, and adopt reliable control methods in temperature, pressure and dust concentration control to ensure the overall performance and quality of the equipment.

1.3.4 The powder spraying equipment adopts the combination of automatic timing pulse type and manual air cleaning, and the process of rapid color change device (quick replacement of filter element) to ensure the efficient completion of powder spraying.

2. Design of the process flow: upper part → powder spraying (workpiece rotation) → solidification → cooling (natural) → unload part.

Part II: Detailed configuration and technical parameters of main equipment

1. Powder spraying room

3.1 Powder spraying room equipment: 2 sets;

3.2 Powder recovery device: 2 sets;

3.3 Spraying method: manual spraying method.

3.4 Design requirements: to meet the requirements of powder booths for workpieces with more than one color.

3.6 Material requirements of the powder room: The body of the spray room is made of T1.5 galvanized steel plate with powder coating on the surface.

3.7 Recycling method: Recycling systems on both sides.

3.8 Recovery fan

3.8.1 Quantity: 2 sets, model 4-72;

3.8.2 Air volume: 12000M3/h;

3.8.3 Total pressure: 1200Pa;

3.8.4 Power: 5.5kw.

3.8.5 Exhaust duct: The duct is made of T0.8 galvanized sheet combined with angle iron flange.

3.8.6 The material of the fan support frame is 100×100 square pipe.

3.9 Recycling performance: no obvious powder spillage. The inlet wind speed at each opening of the powder room> 0.6m/s.

3. Curing furnace equipment:

4.1 Equipment name: curing oven;

4.2 The curing oven includes: oven chamber, heating system, air return system, automatic temperature control system, etc.;

4.3 Curing furnace chamber body:

4.3.1 The solidification furnace body adopts a high structure with the workpiece bottom entering and bottom exiting. The bottom frame of the main body is welded by section steel, which is solid, reliable and beautiful. The bottom frame and the ground are connected by expansion bolts;

4.3.2 The inner plate of the curing furnace body is made of 0.5mm galvanized sheet, and the outer plate is made of 0.5mm color-coated sheet. The inner and outer walls are filled with 100mm thick high-quality rock wool, and the density of rock wool is 120K. Between the board and the board It is assembled by plug-in connection;

4.3.3 There is an inner frame structure inside the solidification furnace chamber body, the inner frame can support the side plates and top plates on both sides of the chamber body, and the inner frame can support the conveyor chain in the furnace, and the inner frame is integrally connected by section steel;

4.4 Gas heating system:

4.4.1 The gas combustion chamber is a double-layer thermal insulation structure, placed on the chamber body, filled with 100mm thick high-quality rock wool between the inner and outer walls, the density of the rock wool is 120K, and the panels are assembled by inserting;

4.4.2 The fire baffle in the heating chamber is made of SUS304 stainless steel, with a thickness of ≥1.5mm;

4.5.3 The burner is an imported Italian Lia Lu burner, including a program controller, gas supply pipeline system, automatic ignition, ignition detector, gas leak detection device, pressure regulating device, liquefaction filter device, etc.;

4.5 The hot air circulation fan is a centrifugal water-cooled fan, with a 100mm thick aluminum silicate insulation layer added to the shell; the fan runs smoothly and has low noise;

4.5.1 The air delivery method is the bottom-feeding-up-return type, and the air supply pipe has a multi-level gradient, which is conducive to the uniform temperature in the entire curing furnace. The air supply branch pipes are equipped with adjustment devices to facilitate the adjustment of the air volume;

4.5.2 The material of the return air duct is galvanized steel, and its thickness is designed in accordance with the national HVAC regulations;

4.6 Automatic temperature control system:

4.6.1 Set an over-temperature protection switch to protect the heating system. In case of over-temperature or fan failure, the heating system will be shut down in time and an audible and visual alarm signal will be issued, and a low-temperature alarm signal device will be set;

4.6.2 The temperature control adopts multi-point temperature measurement and multi-point temperature control method, and adopts constant temperature control method to control temperature. Platinum thermal resistance probe, digital display temperature controller, easy to adjust, temperature control error shall not be greater than ±5°C, temperature controller adopts international brand products;

4.6.3 The circulating fan is equipped with a delay switch function to ensure that the temperature can be cooled down quickly;

4.6.4 Performance requirements:

4.7.1 Heating time: curing oven: room temperature 220 ºC about 45min;

4.7.2 Temperature control performance: There is a temperature sensor in the furnace, and the temperature is displayed on the temperature controller;

4.7.3 Thermal insulation performance: the difference between the average temperature of 10 uniformly distributed temperature measuring points in any 1m² area of the furnace body and the surrounding room temperature is ≤15ºC;

4.7.4 Temperature uniformity: After the surface temperature of the workpiece in the effective temperature zone of the curing furnace reaches the set working temperature, the temperature deviation of the upper, middle and lower three points within the height of the workpiece is ≤±5ºC;

4.7.5 Set up an adjustable exhaust gas discharge system to maintain a slight negative pressure in the drying tunnel to ensure that the heat at the entrance and exit of the tunnel does not overflow.

5. Suspended conveyor system:

5.1 Use heavy-duty 200 suspension conveyor chain, single point lifting weight 50kg, including drive mechanism, heavy hammer tensioning device, chain, straight rail, curved rail, telescopic rail, bracket, primary spreader, electrical control system, automatic overload protection device, etc. .

5.2 Use the appropriate number of driving devices according to the tension of each line; there is no problem of crawling, jamming, etc.

5.3 The design process chain speed is: V=0.5m/min (0.5-1.0m/min steplessly adjustable).

5.4 The drive device adopts frequency conversion stepless speed regulation technology.

5.5 Displacement limit protection switches are installed on the tensioning device, catenary emergency stop switches are installed on all key parts of the line, and the drive is equipped with mechanical and electrical double safety protection.

5.6 All tracks are equipped with turning light wheel slewing devices to reduce the driving load.

5.7 The track in the curing furnace is equipped with 2 expansion joints to ensure that the track is not thermally deformed.

5.8 The operating noise of the drive chain is below 65db, and the grease-enclosed chain is used for easy maintenance.

5.9 The upward and downward slope angles of all conveyor chains are 30º;

5.10 Set up emergency stop buttons at the following locations, and set up emergency stop station sound and light displays in eye-catching locations in the workshop, and inform the production management personnel of the location of the emergency stop in a timely manner: