Shot-blasting machine is a kind of shot-blasting equipment, which is applied to clean the surface of steel structure welding workpiece, H-style steel, plate and other profiles. It can clean away rusty spot, rusty scale, welding slag on the workpiece surface, as well as welding stress, in order to remove stress and improve surface lacquer quality and rot proofness of steel structure and steel.



Compared with other machines made in home factories, this machine has some advantages as following:

• The quantity of shot-blasting and arrangement mode both are calculated by computer mass ejection simulation. The 8 impellers are located at upper and lower, right side and left side, ensuring that the bunch of projectiles ejected by shot-blasting cover the most part of the steel surface, including the end parts. It makes sure that the effect of shot-blasting is overall and effective.
• The system is a centrifugal peering shot-blasting, which is adopted in advantages of massive shot-blasting and high ejection speed. Both the quantity and the momentum of the projectiles ejected to the workpiece surface are highly improved in unit time. So it can shorten the shot-blasting time, and improves the efficiency, comes to a pleasing cleaning quality.
• Dedusting system adopts filtration type of back flushing. Dust collector adopts folded dedust filter cylinder, and the dedusting area has increased. The filter cylinder adopts nano-meter fiber technology; dust collection efficiency is more than 99.99%, especially for dust particles with a diameter of 0.5μm. After efficient filtration, the air is clean and can be recycle used or indoor emission. The pulse controller can adjust the frequency, speed and intensity of ash removal, compared with domestic traditional bag type single grade dedusting system, it has advantages of high dedust efficiency, lower operation resistance, small volume, light weight, easy replacement and so on. Emission quantity meets the national emission standard.
• Shot sand separation system adopts advanced full curtain type, it's invented by company after a long time research. It's especially for steel structure shot separation cleaning after blasting. The performance i achieves home and abroad similar product level. The separation combines both wind selection and screening together, separates dust, metal oxide scale fragments, broken sand, large particles from qualified projectile, and obtains clean steel shot.
• Spring steel plates and resistance rubber complex figure type baffles are installed in the two ends of shot-blasting chamber, in order to prevent projectiles splashing. At same time, it decreases the area of chamber in and out ports, so enhances the effect of dedust.
• Projectile clean-away device is installed in every out port of chamber, it can blow away remained projectile on workpiece, reduce the wastage of projectile, lower the leakage of projectile. To the complicated structure workpiece, operator can clean projectile at outside. Dust is absorbed by dedusting system. This system adopts self-circulation type to clean the surface.
• Adopting the international advanced technology projectile controller. Not only can control projectile self-support. But also can through the control valves'work schedule regulate projectile's flow rate. So as to realize it supply controllable and adjustable. It can guarantee no leakage projectile and jam phenomenon .Diversion safe and reliable.
• Aim at different specifications, shapes and complex degree of steel. The roller running speed can use transducer to on-line adjusting. Make different parts can get cleaning effect.

  Width×height	≤800×1800mm
  Length	3000-12000mm
  Quality requirement	Sa2.5, Ra15-50
  Model of impeller head	QZ320
  Quantity of shot-blasting	8×200kg/min
  Turning speed	2940r/min
  Shot blasting speed	73m/s
  Driving power	8×11KW
  Length of input roller conveyor	12000mm
  Length of roller conveyor in chamber	6100mm
  Distance between roller conveyor out of chamber	1000mm
  Load capacity of roller conveyor	1000kg/m
  Conveying speed	0.5-5m/min
  Capacity of shot conveying	120T/h
  Driving power	5.5KW
  Driving power	7.5KW
  Hoisting speed	1.5m/s
  Hoisting capacity	120T/h
  Driving power	4KW
  Width of curtain	2000mm
  Steel shot diameter	ф0.8-ф1.2mm
  Model of dusting system:	LMF-I
  Discharge quantity	<120mg/m3
  Wind speed of the gate	<5m/s
  Handling volume of dusting system	15000m3/h
  Quantity of filter core	12
  Filtering area (12×20)	240
  Centrifugal ventilator Model	4-72-5A
  Centrifugal ventilator air volume	15000m3/h
  Centrifugal ventilator wind pressure	2022 Pa
  Centrifugal ventilator power	15KW
  Cleaning system ventilator power	15KW
  Overall power	≈140KW
  Whole machine air volume	15000m3/h