In some industrial manufacturing processes, polishing and grinding are required. For aluminum products such as aluminum alloys and aluminum profiles, surface treatments like polishing and grinding are common, generating a significant amount of aluminum powder and dust.
One particularly severe type of dust is the aluminum powder generated during the polishing of aluminum alloy wheels. Once ignited, this aluminum powder can trigger intense chemical reactions. Additionally, the mechanical grinding process itself generates significant amounts of abrasive dust, such as sand and stone powder, which can easily mix with aluminum powder. Over time, if not promptly managed, these mixtures accumulate continuously. When the concentration reaches a critical level, even static electricity—let alone an open flame—can cause an explosion. Such explosions occur instantaneously and are nearly impossible to control.
Aluminum powder poses a high fire risk, particularly as it can mix with air to form explosive mixtures. When reaching a certain concentration, exposure to sparks or static electricity can trigger an explosion. Moreover, if suspended dust explodes, the initial blast wave may disperse accumulated dust into a cloud, which can then ignite and cause secondary explosions. In the management of hazardous chemical materials, aluminum powder is classified as a Class II flammable substance.
As regulatory authorities increasingly prioritize dust control in factories, the rational selection of dust treatment equipment is closely linked to the effective management of dust in polishing workshops. Currently, polishing workshops typically opt for explosion-proof wet dust removal systems to handle flammable and explosive dust. These systems not only centralize the collection and treatment of aluminum powder and polishing dust but are also designed with consideration for equipment investment and operational costs.
Shanghai Jieyan Environmental Technology Co., Ltd. has developed and manufactured a wet dust collector specifically for polishing and grinding workshops. This system not only effectively addresses dust issues in grinding workshops but also provides reliable explosion protection.
Traditional bag dust collectors concentrate dry aluminum powder, and the friction between dust particles increases the risk of hazards. The new wet dust collector reduces dust activity, significantly lowering the risk of explosion.
The HDC series high-efficiency centrifugal wet dust collector utilizes centrifugal force to thoroughly mix water with dust-laden gas, thereby discharging clean air. When the dust-laden airflow passes through stationary blades partially submerged in water, a water curtain is formed, effectively removing dust as it traverses through this curtain.
In short, the HDC wet dust collector integrates water bath and spray dust removal methods within a single space, perfectly combining both approaches to achieve higher dust removal efficiency, significantly reducing risks.
