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As grain storage steel silos become the mainstream silos in the grain and oil industry, their safety issues have increasingly become one of the focuses of the industry. In the past 20 years, the dust explosion accident rate of grain steel silos in grain and oil processing plants and feed plants has been on the rise. Starting from the design, considering various influencing factors, and taking comprehensive prevention and control measures, it is possible to effectively control dust and prevent dust explosion accidents.
1. The overall planning and design of the steel silo follow the principle of overall fortification. The production process should be closed and automated as much as possible; special safety walls and isolation belts (such as firewalls, green belts, fire doors, etc.) should be set up for buildings and mechanical equipment with explosion hazards, and fireproof materials should be used appropriately; Grounding, anti-static and fire protection design should be fully considered and safe and reliable preventive measures should be taken.
2. In the structural design of the steel silo, the steel silo should be equipped with safety devices such as ventilation windows, explosion vents, and inspection holes to maintain the normal pressure in the silo; signal, to prevent blockage of elevators and conveyors; for places that are easily damaged (such as closed corridors, trestles, etc.), set up explosion-proof windows to achieve the purpose of explosion relief; use lightning rods or lightning belts, etc.
3. Ventilation and dust removal process design. Reasonable ventilation and dust removal processes play a positive role in preventing dust explosions. It is very important to choose the appropriate parameters and methods during design. Use dust collectors and protective covers as much as possible. Select the appropriate position of the suction point and the structure of the windshield, especially for the part where the grain is delivered, so that a wind belt can be formed with the outside world when the grain is delivered, so as to prevent dust from flying. Install a dust hood close to the dust source to limit the dust to a smaller area.
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