304 stainless steel air knife nozzle

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304 stainless steel wind knifeIt utilizes the high pressure and large air volume characteristics of high-pressure fans to press air into the air knife, completing the work requirements of blowing water for dust removal and drying; The blade body and blades of the wind knife are both made of high-quality materialsMade of 304 stainless steel, with precise manufacturing and strong air outlet, it has the characteristics of energy saving, high efficiency, practicality and reliability. According to customer requirements: make longer, make shorter; Caliber: narrow to wide; The material is stainless steel; The application scope is very wide.

304 stainless steel wind knifeDesigned through technology and continuous practice, this product is suitable for the rapid drying of modern industrial products. It mainly consists of a circular air inlet, a wide straight air duct, a splitter plate, a gradually narrowing air duct, and a straight narrow air duct. The width of the air duct can be adjusted to meet the requirements of adjustable air outlet speed, air volume, and air pressure. It has the characteristics of low wind resistance and low pressure loss.

Stainless steel wind knife specifications

1. Rapid water removal wind speed:70～120m/s， Air outlet width: 1-1.5mm;2. General water removal wind speed:50～80m/s， Air outlet width: 1-1.5mm;3. Drying wind speed for water-based coatings:40m/s， Width of air outlet: 5mm;4. Steam sterilization wind speed：70～150m/s， Width of air outlet: 0.3mm;5. Hot air drying speed:20～60m/s ， Air outlet width: 2-5mm Temperature: 60 ℃ -150 ℃;6. Hot air rapid drying speed:60～80m/s， Air outlet width: 2-5mm Temperature: 150 ℃ -250 ℃.

Working principle of stainless steel wind knife for water blowing

After the compressed air from the fan enters the air knife, it is blown out at high speed with a thin airflow sheet with a thickness of only 0.05 millimeters on one side. Through the principle of the Coanda effect and the special geometric shape of the wind blade, this thin film air curtain can be 30-40 times larger than the ambient air, forming a thin, high-intensity, and high airflow impact air curtain. Wind knives are divided into two types based on their working modes: standard wind knives and super wind knives. The wind curtain of the standard wind knife deflects 90 degrees and blows out, while the wind curtain of the super wind knife blows out horizontally.

Characteristics of Stainless Steel Wind Knife for Water Blowing
1. Adopting an efficient droplet shaped outlet design, its blowing efficiency can be reduced by 90% to 95%, while the efficiency of blowing through the pipe opening is only 65%, thus saving energy costs by 80% to 90% and significantly reducing operating costs.
2. The noise is very low and no sound insulation facilities are needed.
3. The system can be directly paired with a blower without the need for a large air compressor system.
4. The original compressed air or nitrogen supply system reduces the air volume and required pressure through different programs. The same air supply system can provide more user points or reduce the operating time of the air compressor.
Compared to spraying, the entire air duct is simpler and easier to maintain.

Performance advantages of stainless steel wind blades for water blowing

1. The manufacturing material of the wind blade is aluminum alloy or stainless steel. The aluminum alloy wind blade undergoes electroplating treatment in the manufacturing process, and its service life is much longer than other similar products. The stainless steel wind blade can be used in high temperature and high corrosion environments; 2. The "full airflow" design means that the width of the wind blade is the same as the width of the air curtain blown out by the wind blade. The back of the wind blade has installation and connection screw holes, which can be combined according to the required length; 3. The wind blade is larger and can drain 35 times more ambient air, with a gas consumption only one-third of that of traditional blowing tubes; 4. There are no worn parts inside the wind blade, and the internal gasket is made of stainless steel material, with a service life of over 10 years; 5. Driven by compressed air, no electricity required, and can be used in explosion-proof environments; 6. Greatly saving compressed air, the air consumption of the air knife is only 60% of that of the traditional blowing pipe; 7. The airflow is uniform, blowing out in a straight line without vibration, and the noise is low (60-75DBA); 8. No moving parts, maintenance free, made of aluminum or stainless steel; 9. Small size, easy to install, maintenance free, and can be turned on/off instantly; 10. No need for electricity, no risk of leakage and explosion, no radio frequency/electromagnetic interference; 11. The structure is simple and sturdy, not easily damaged, and has an extremely long service life; 12. Multiple specifications of air knife lengths (2 'in -40' in) are available for customization.

Application scope of stainless steel wind knife for water blowing

1. Printing (inkjet): inkjet printing, blowing away dust, debris, and water vapor before printing, or used for rapid drying of ink; 2. Automotive industry: used for blowing away additional water, coolant, dust, debris, etc. in manufacturing, as well as blowing air for cooling, drying, and dust removal before painting steel plates; 3. Electronics industry: Electronic circuit boards are quickly dried before assembly; 4. Food industry. Before canning and bottle making beverages, labeling beverage bottles, inkjet printing, or packaging, blow off the moisture and attachments from the bottle mouth or body; 5. Food and medicine: Blow off moisture and attachments before manufacturing or packaging, or remove dust from openings and bags before packaging; 6. Metal industry: blowing coolant or other liquids from the surface of metals. Blow off the emulsion from the rolling mill. Dry or cool the surface before polishing, electroplating, and painting processes; 7. Rubber and plastic material industry: blow off dust or debris on the surface of products. Dry before extrusion or injection. Cooling of the product after injection molding; 8. Chemical industry: Before labeling or packaging, blow off surface chemicals or moisture.

Design and installation precautions for stainless steel wind blades for water blowing

wind knifeDuring the design and installation process, it is necessary to pay attention to the spray angle of the two nozzles of the air knife. Due to site limitations, a wind knife driven by the same fan has been installed on both sides of the packaging bottle production line. In order to improve the drying efficiency, the air knives on both sides should not be blown in pairs. Because even if the airflow of the wind knife is very fast, it may still form stagnation points on the surface of the packaging bottle, affecting the effect, and the ejected airflow will bounce back under the action of the incoming flow on the opposite side, causing significant spray losses. In the operation line of conveying packaging bottles, in addition to necessary considerations during design, necessary limitations should also be placed on the running speed of the workpiece to ensure that the surface of the packaging bottle is blown by the air knife for a certain period of time. Of course, fans and air knives can also be added to improve efficiency. This article designs a new and efficient cold blow drying and water removal equipment to meet the drying needs of packaging bottles for filling products.