Ideal for large steel structures, ships, bridges, aerospace, military products, rail equipment, wind turbine towers, port machinery, oilfield equipment, construction machinery, mining equipment, textile machinery, special-purpose vehicles, large castings, and the inner and outer surfaces of steel pipes—surface rust removal.
Ideal for large steel structures, ships, bridges, aerospace, military products, rail equipment, wind turbine towers, port machinery, oilfield equipment, construction machinery, mining equipment, textile machinery, specialized vehicles, large castings, and the inner and outer surfaces of steel pipes—surface rust removal.
Principle Introduction:
The interior of the sandblasting room forms an air flow layer from top to bottom of the room under the action of wind, while the abrasive is jetted onto the workpiece surface to cut chips under the force of compressed air. Some of the abrasive chips break into dust, which is then carried down by the air flow, mixing with the abrasive and rust removal impurities, and returns to the selection system through the honeycomb back-sanding floor. After sorting, reusable sand is returned to the storage bin to automatically add sand to the sandblasting system for recycling. Dust and impurities that cannot be reused are transported to the dust collector for precise filtration. The dust settles in the waste bin and is recycled, while the filtered gas is either released into the atmosphere or reused in the sandblasting room. The entire process is sealed, with no dust leakage, ensuring safety and environmental protection.
Mechanical recirculating sandblasting room complete set mainly consists of the sandblasting room body, lighting system, air-powered recovery floor, separator, sandblasting system, dust collector, fan, control system, workpiece conveying system, and operator protection system.
Features of Mechanical Recirculating Sand Blasting Cabinet:
★Environmental Protection: The fan is driven by electricity, ensuring cleanliness and no pollution. Sandblasting is conducted in a sealed environment, and the sand is recycled through enclosed pipelines, thus preventing any leakage of sand or dust that could cause pollution. Dust is filtered through a core filter dust collector, with the emission concentration of the filtered gas exceeding national emission standards.
★Automatic Recirculation: The system utilizes an air-powered material recycling floor to achieve automatic reuse of sand material.
★Dual-purpose Wind: The wind generated by the fan meets the requirements for conveying sand material and also serves as a dust removal system.
★Automatic Sorting: The separator uses the principle of pneumodynamics to effectively sort sand, impurities, and dust. The reusable sand is returned to the storage bin, while the non-reusable dust and impurities are transported to the dust collector for refined filtration.
★ Filter Core Dust Removal: The system utilizes filter core dust removal, ensuring high filtration efficiency.
★ Imported Filter Media: Made from imported long fibers, the filter cores have a large filtering area, with each core having twice the filtering area of a standard filter core.
★Automatic Control: Automatic control is achievable for sand recycling, sorting, nozzle control, dust removal, and sand blasting pot operations. The system features automatic fault alarms and prompts.
High Integration: The control system uses PLC + touch screen display, enabling both automatic operation mode and manual control mode.
★High-Efficiency Cleaning: Equipped with a high-pressure double-cylinder continuous sandblasting machine, a single nozzle can clean up to 10 ~ 30 m2/h.
Compared to traditional shot blasting (bead) rooms, it boasts the following distinct features:
1. No need for deep excavation (or can skip the pit), low infrastructure costs, and short construction period.
2. Equipped with sand-suction flooring, it eliminates the need for traditional conveying equipment such as augers, belt conveyors, and bucket elevators. This reduces wear, clogging, and other issues caused by sand and dust on conveying equipment, bearings, and motors during sand material transportation and lifting. It boasts a low failure rate and requires minimal maintenance work.
3. Equipped with abrasive separation and sorting equipment, the abrasive is automatically recycled, enhancing utilization rate and sandblasting cleaning efficiency.
4. The abrasive recycling separation, sorting, and dust removal systems share a single fan, achieving multiple uses with one wind source, saving 30% of energy compared to traditional sandblasting rooms.
5. The sandblasting system allows one sand pot to power multiple high-speed guns, each of which can be controlled independently. The sandblasting cleaning efficiency is high, and the working pressure can be infinitely adjusted.
6. Utilizes carbide durable sandblasting nozzles with an average lifespan of 800-1000 hours.
7. The sandblasting room can utilize different materials and grain sizes of abrasive media (such as steel shots, glass beads, steel sand, quartz sand, copper ore sand, yellow sand, fruit shells, etc.), meeting various process requirements.
8. The indoor air flow of the shot blasting (ball) room circulates from top to bottom, with bright lighting, comfort, and high visibility.
9. Utilizing filter core dust removal technology, the dust emission from the shot blasting room is significantly lower than the national environmental protection standards.
10. The sandblasting (bead) room is constructed with foam-insulated color steel panels, featuring soundproofing capabilities, aesthetics, durability, and airtightness.
Dust and Sand Separation System
Material and dust are recovered from the honeycomb floor, which must be separated by a sand-dust separator before the sand can be recycled. The efficiency of the sand-dust separator directly affects the sandblasting performance of the sandblasting machine and the filtration performance of the dust collector.
The sand separator employs a two-stage air separator specifically designed for our sandblasting systems: the first stage is a unique cyclone inertial separator, and the second stage is an air-blowing separator. It effectively sorts the returned reusable sand, crushed sand, dust, oxide scale, and other impurities. The whole sand is returned to the sandblasting machine for continuous recycling, while the dust and fine sand are sent to the dust collector, filtered, and stored for regular cleaning.
By adjusting the regulating mechanism on the dust separator, the diameter of the separated sand material can be regulated. Custom-designed dust separators can achieve grading, segmentation (different particle sizes), and round selection of sand materials.
