Ideal for large steel structural components, 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, special-purpose vehicles, large castings, and the inner and outer surfaces of steel pipes—surface rust removal.
Principle Overview:
The internal volume of the sandblasting room forms an air flow layer from top to bottom due to wind force. The abrasive material is jetted onto the workpiece surface after being compressed and solidified by compressed air, cutting off chips. Some of the abrasive chips break down into dust, which is then carried down by the air flow, mixing with the abrasive material and rust particles, and returns to the selection system through the honeycomb back-sanding floor. After selection, reusable sand is returned to the storage bin and automatically added to the sandblasting system for recycling in accordance with the sandblasting requirements. Dust and impurities that cannot be reused are transported to the dust collector for fine 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.
Mechanical recirculating sandblasting booth features:
★Environmental Protection: The fan uses an electric drive method, ensuring cleanliness and no pollution; sandblasting is performed 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 exhaust gas concentration after filtration exceeding national emission standards.
★Automatic Recirculation: The system utilizes an air-powered material recovery floor to achieve automatic recycling of sand material.
★ Dual-purpose: The wind generated by the fan meets both the conveying of sand material and the system's dust removal.
★Automatic Sorting: The separator utilizes the principles of pneumatics to effectively sort sand, impurities, and dust, allowing recyclable sand to return to the storage bin, while non-recyclable dust and impurities are transported to the dust collector for fine filtration.
★ Filter Core Dust Removal: The system employs 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 core.
★Automatic Control: The automatic control of sand recovery, sorting, nozzle control, dust removal and sandblasting tank operation can be achieved, with automatic alarm and prompt for system failures.
High Integration: The control system employs PLC + touch screen display, enabling both automatic operation mode and manual control mode.
★Efficient Cleaning: Equipped with a high-pressure twin-cylinder continuous sandblasting machine, a single nozzle can clean up to 10 ~ 30 m²/h.
Compared to traditional shot blasting (ball) rooms, it has the following notable features:
1. No need for deep excavation (excavation not required either), low infrastructure costs, and a short construction period.
2. Equipped with sand-suction floor, eliminating the need for traditional conveying equipment like screw conveyors, belt conveyors, bucket elevators, etc. This avoids wear, clogging, and other issues caused by sand and dust on conveying equipment, bearings, and motors during sand material transport 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 fan, saving 30% of energy compared to traditional shot blasting rooms.
5. The sandblasting system allows one sand pot to power multiple high-speed spray guns simultaneously, each gun can be controlled independently, offering high sandblasting efficiency, and the working pressure can be infinitely adjusted.
6. Utilizes carbide-tough shot blasting nozzles with an average lifespan of 800-1000 hours.
7. The sandblasting room can use different materials and particle sizes of abrasive media simultaneously (such as steel shots, glass beads, steel grit, quartz sand, copper ore sand, yellow sand, fruit shells, etc.), meeting various process requirements.
8. Sandblasting (bead) indoor air circulates from top to bottom, with bright and comfortable lighting, and high visibility.
9. Utilizing filter core dust removal technology, the dust emissions from the sandblasting (pellet) room are significantly lower than the national environmental protection standards.
10. The shot blasting (bead) room is composed of foam plastic sandwiched colored steel panels, offering soundproofing capabilities, is aesthetically pleasing, robust, and airtight.
Dust and Sand Separation System
The materials and dust recovered from the honeycomb flooring must be separated using a sand-dust separator before the sand can be recycled. The efficiency of the sand-dust separator directly impacts the sandblasting performance of the sandblasting machine and the filtration performance of the dust collector.
The sand separator utilizes a two-stage air separator specifically designed for our sandblasting systems. The first stage is an exclusive cyclonic inertial separator, while the second stage is an air-blowing separator. It effectively sorts 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 periodic cleaning.
By adjusting the regulating mechanism on the dust separator, the diameter of the separated sand material can be regulated. Special custom-made dust separators can achieve grading, sectioning (different particle sizes), and round selection of sand material.
