The cylinder outer wall shot blasting cleaning machine is a device specially used to clean the outer wall of the cylinder, such as oxide scale, rust, dirt, etc. It impacts the cylinder surface by high-speed projectiles to achieve efficient cleaning and surface strengthening. The following is a detailed analysis of its core characteristics and application value: 1. Working principle and technical advantages. High-speed propelling cleaning equipment uses a high-speed rotating shot blasting device (impeller speed can reach 2000-3000r/min) to the surface of the cylinder at a speed of 50-100m/s, and peels off the oxide scale and rust layer through kinetic energy impact. Compared with traditional hand-polished grinding or chemical pickling, the cleaning efficiency is 3-5 times higher and there is no chemical pollution. The compressive stress layer generated by the impact of the projectile can significantly improve the fatigue strength and corrosion resistance of the cylinder. For example, the surface hardness of the treated cylinder can be increased by 20%-30%, and the fatigue life will be increased by 1.5-2 times. It is suitable for high-pressure gas cylinders, liquefied gas tanks and other scenarios with extremely high safety requirements. Automation and continuous operation equipment are usually equipped with PLC control systems to realize the full process automation of automatic loading, shot blasting and unloading. For example, it only takes 3-5 minutes for a certain model of equipment to clean a 6-meter-long steel pipe, and can continuously process steel cylinders (Φ600-3200mm) in different diameters to meet the needs of large-scale production lines. 2. Core components and performance parameters The shot blaster adopts an efficient centrifugal design, such as the Q034 type cantilever centrifugal shot blaster, which has the characteristics of long life and low failure rate. A single device can be equipped with 2-8 shot blasters to ensure no blind spots to clean. The projectile circulation system realizes projectile recycling and recycling through screw conveyors, bucket elevators and air-selecting separators, with a separation efficiency of more than 98%, reducing material consumption costs. The dust removal system is equipped with a bag-type dust collector, and the dust emission concentration is less than 20mg/m³, which complies with national environmental protection standards. For example, a certain equipment adopts a three-stage recycling system, with abrasive loss rate of only 1.5kg/ton of workpieces, which significantly reduces dust pollution. Examples of key parameters Cleaning speed: 1-15m/min (adjusted according to the diameter of the cylinder) Surface roughness: Ra0.35-0.45μm (adjustable) Total power: 50-210kW (excluding dust removal) Applicable workpiece size: diameter Φ100-3200mm, length 6000-19000mm 3. Application scenarios and industry values ​​Petrochemical industry cleans the outer walls of pressure vessels such as liquefied gas cylinders, oxygen cylinders, etc. to ensure that the surface is free of oxide scale and impurities, and prevent the risk of corrosion and leakage. For example, after a petrochemical enterprise adopts this equipment, the service life of the cylinder will be extended by 40%, and the annual maintenance cost will be reduced by 2 million yuan. Steel and metal processing are used to pretreat metal profiles such as steel pipes and profiles to enhance coating adhesion. Data shows that the adhesion of the surface paint film of the shot blasted cylinder has been increased by 50%, and its corrosion resistance reaches the GB 8923 Sa2.0 standard. Clean the outer wall of heating pipelines in the fields of centralized heating and water supply and drainage to eliminate the impact of rust on heat conduction efficiency. After a heating company uses it, the pipeline heat transfer efficiency has been increased by 15%, saving energy in the year