Exhaust cabinet dust emission and recycling reduce harm to human body
July 18 13:45:09, 2025
The gantry design was implemented due to the funnel-shaped bottom of the cabinet, which made it impossible to directly install the operating table. To solve this issue, two metal rods were installed on the top opening of the funnel as a support structure. To prevent the introduction of iron impurities, aluminum rods were used instead. The gantry is mounted on these rods and allows for smooth front-to-back movement. A tray is then placed on the gantry, serving as the operational platform. This setup enables the blank body to be adjusted freely in both horizontal and vertical positions. The gantry is not only stable but also easy to disassemble and reassemble, making it user-friendly and convenient for maintenance. Its flexible design helps reduce dust emissions during the glazing process.
Additionally, part of the internal space is filled with material, as the cabinet operates under positive pressure. This can cause dust to escape, posing risks to operators and affecting the working environment. To address this, a suction hopper was installed at the back of the cabinet, connected to an exhaust fan that removes the dust from the rear. Inspired by some manufacturers’ experiences, a water bath dust removal system was also added. The dust extracted from the hopper is forced through a water bath, where the glaze particles are absorbed by the water, effectively removing dust. At the same time, the collected residual glaze is recovered and reused.
The design has been thoroughly reviewed and applied successfully. The new spray glaze cabinets perform well, with excellent recovery efficiency of the leftover glaze. It is required that all recovered glaze from both the spray glaze process and the water bath dust collector be returned to the adjacent glaze pool. After mixing with fresh glaze, it can be used directly without any quality difference compared to new glaze. Recycling the residual glaze significantly reduces production costs in the glaze processing stage and minimizes environmental pollution caused by waste disposal.