After our staff arrived at the site for inspection, it can be seen that the workpiece is complex and high in height. In order to achieve the drying effect, greater wind speed and longer blowing distance are required. The design is unreasonable. The key point of the through type high-pressure spray washer is the wind cutting, assisted by the oven. The wind cutting speed of the existing equipment is low, the effective distance is far away, and the water in the mesh belt cannot be blown off, let alone blow dry the product. If the product shows that there is a large amount of water left, the evaporation and drying time through the oven of more than 100 degrees requires at least 10-20 minutes. However, the current oven is only 10 meters long, The baking time is less than 2 minutes, so it cannot be dried naturally.
Wrong type selection of fan, and the connection of air knife pipe is necked. It can be seen from the above figure that the fan currently used is a fan imitating Taiwan's all wind fan. This fan is characterized by small pressure and flow. The maximum flow of a single fan is 500-600 cubic meters, and the pressure is 20 kpa, which can not meet the demand of a fan blade to generate high-speed air at all. When the 76mm fan outlet pipe is connected to the inlet of the fan blade, it is only 60mm at most. The resistance increases, and the flow decreases. Roots blower is also not suitable for the drying of air knife. Roots blower is a volumetric blower similar to air compressor, which is characterized by large pressure and small flow, while the application of air knife requires the coexistence of pressure and flow, so it is judged that the effect of Roots blower is the same as that of the original fan.
The width of the mesh belt is 1.2 meters, and the length of the air knife is also 1.2 meters. The air knife is installed horizontally above and below the mesh belt, which is rich in Air knife drying system The applied engineering must know that this is a low-level error. When the product workpiece comes from the front vertically, the blade of the air knife is just parallel to the folded edge of the workpiece, which will cause the water of the workpiece to bounce back at the folded edge, and it cannot be dried repeatedly. In addition, if the wind speed is fast enough, the workpiece will be blown backward and overlapped by the wind. The correct method is that the mesh belt is 1.2 meters wide and the air knife is about 1.3 meters long. The air knife and the mesh belt are installed obliquely, and the drying effect is immediate!
Leitz has come to the conclusion that the production speed should be 6 meters/minute to improve the situation. After the product passes through the air cutting oven, no manual water wiping is required. New air knives and fans are installed to optimize the equipment structure. We can set three groups of air knives in front of the oven. The first two groups use one RAETTS-100, 11KW carries two 1.3 meter RAETTS-85 7.5KW air knives, and the third group uses two RAETTS-85 7.5KW carrying one 1.3 meter RAETTS-85 7.5KW air knife, respectively, as the super strong air knife in front of the oven, which can cut off more than 95-98% of the moisture in the workpiece before entering the oven, The remaining small amount of moisture is easily dried in the oven.
Why is the Leitz blower so efficient? Because the flow of a 7.5KW Leitz super fan is up to 1444 m3/h, the pressure is up to 25kpa, and the flow is 2.5 times of the existing high-pressure fan, its drying effect can be comparable to that of a 55KW screw air compressor. The Leitz super fan is equipped with Leitz Konda effect wind knife (patented design), which provides a more powerful guarantee for the entire drying system.
The Leitz Super Blower occupies a small space. The Leitz Super Blower System can install the blower above, below or near the air outlet point of the blower blade. The overall design is more compact (the fan outlet is 360 ° adjustable). This minimizes the pressure and pressure flow loss generated by the blower, thus maximizing the drying efficiency. As the world's leading fan R&D/manufacturing manufacturer, we have been committed to developing advanced wind blades and have made great achievements. This exciting invention makes hair blowing, cooling and drying applications more efficient and reliable, while saving you a lot of energy and operating costs.
