Shot blasting equipment is a dust free way to achieve high performance and high efficiency when preparing horizontal and vertical surfaces for painting.
Shot blasting is ideally suited for the surface preparation of storage tanks in the petro chemical industry.
The cleaning operation is performed by abrasive being thrown at high velocity against the surface to be cleaned. The throwing action is achieved through centrifugal force, where a wheel with paddle type blades attached radially is revolved at high speed. Onto this wheel abrasive is fed in such a manner that it travels along the radial length of the blades and then is thrown off in a high velocity stream at the surface to be cleaned, efficiently blast cleaning the work surface.
The energy put into the abrasive is sufficient to enable it to rebound from the work surface. This rebound (kinetic energy) is used to recover the abrasive for re use. The machine is designed so that the blast wheel is throwing abrasive at an inclined angle relative to the surface; this means that after striking the work surface abrasive rebounds at a similar angle into the main reclaim duct which directs it back into the storage hopper for reuse.
The abrasive is efficiently cleaned before being returned for re-use. This recycling of total abrasive takes place on a continuous basis at a rate of 6 times per minute. Assisting this reclaim cycle is air flow created by exhaust fans, (one on the blast unit and one on the dust collector) which enters the machine through a brush screen at the rear of the blast cabinet, across the work surface, up the reclaim duct through the separator into the dust collector. Clean air is then vented to the atmosphere.
Abrasive is contained within the machine at the work surface level by urethane seals at the front, brush screen at the rear and floating side seals of manganese on either side.
Debris is separated from the abrasive and passed to the remote dust collector where it is collected in bins for eventual disposal.