DEVICE FOR COLLECTION, RECOVERY AND TEMPORARY STORAGE OF ABRASIVE MEDIUM DURING OPEN SHOT BLASTING Russian patent published in 2025 - IPC B24C9/00 B07B9/00 

FIELD: performing operations.

SUBSTANCE: device relates to the field of treatment of surfaces with shot, in particular, to devices for collection and cleaning of abrasive material (shot) from dust and waste products during open shot blasting, and can be used in preparation of surfaces of large-sized parts and structures for various types of coatings. Device for collection, regeneration and temporary storage of abrasive medium during shot blasting comprises means for collecting fouled abrasive medium, a vacuum unit, separation assembly, which includes a housing with a drum installed therein on a shaft with a cylindrical perforated side surface and a means of removing waste products during shot blasting of large-sized parts and housings of structures on its inner side surface, clogged abrasive medium supply branch pipe to one of the drum end surfaces and outlet branch pipe for waste products during the large-sized parts and structures housings shot blasting treatment from the other end surface into collector for waste products during shot blasting of large-size parts and housing structures, hopper for abrasive material collection arranged under drum perforated surface, air suction branch pipe connected by pipeline with dust precipitator for dust removal into dust collector, outlet branch pipe for cleaned abrasive medium, installed outside housing and connected to shaft rotation drive, storage tank for temporary storage of cleaned abrasive medium located below housing of separation unit with possibility of connection to working pressure tank of shot blasting machine. Between the housing of the separating unit and the storage tank, a sluice chamber for the cleaned abrasive material is installed, equipped with level sensors, which inlet is connected by pipeline through gate valve with outlet branch pipe for cleaned abrasive medium of separation unit, and outlet is connected via pipeline through gate valve with storage tank, hopper wall lower side part is made vertical with possibility of deviation from the hopper bottom and the formation of a gap between them for the abrasive material clogged with dusty garbage pouring, wherein under the slot a dust collecting nozzle is installed, connected to the air suction branch pipe, the input of the vacuum unit is connected by a pipeline to the air outlet of the dust precipitator, and means for collecting fouled abrasive medium is connected by a pipe with a supply pipe of separation unit, wherein on the outer perforated surface of the drum there is a removable mesh in the form of separate cylindrical or rectangular segments covering it, means of removing waste products during shot blasting of large-sized parts and housings of structures is made in the form of a spiral winding of a tape fixed to the inner cylindrical perforated surface of the drum and forming a helical groove with a perforated bottom, hopper is arranged so that divides inner space of housing into two sealed parts, between the hopper and the housing of the separating unit, in the far part from the inlet pipe, an air channel is made connecting the two sealed parts and equipped with a controlled air valve, and in lower part of hopper there is a position sensor of deviating part of hopper side wall, on cover of storage tank there is a repair hatch with a through channel connecting inner volume of storage tank with atmosphere, between the housing of the separation unit and the collector for waste products during shot blasting of large-size parts and housings of structures, a lock chamber is installed below the discharge branch pipe for waste products during shot-blasting of large-sized parts and housings of structures for waste products during large-size parts and structures bodies shot blasting, equipped with level sensors, which inlet is connected by pipeline through gate valve with discharge branch pipe for waste products during shot blasting of large-sized parts and housings of structures, and outlet is connected by pipeline through gate valve with collector for waste products during shot blasting of large-size parts and housings of structures, and between dust collector and dust collector below dust collector there is a dust gate chamber equipped with level sensors, which inlet is connected via pipeline via gate valve with dust precipitator outlet branch pipe while its output is connected via pipeline via gate valve with dust collector.

EFFECT: reduction of material consumption at maintaining effective cleaning of abrasive material and simplicity of maintenance.

1 cl, 4 dwg