Technical measures are the central measures to prevent dust hazards, mainly to control dust producing operations and operations that do not meet the dust prevention requirements, so as to eliminate or reduce the generation and escape of productive dust and reduce the dust concentration in the working environment as much as possible.
l) The fundamental way to eliminate the harm of dust is to reform the process and innovate the production equipment. It should start from the limestone production process design, equipment selection, and the equipment that should meet the dust-proof requirements before leaving the factory.
2) Wet operation is an economical and effective measure to prevent dust flying. All operations that can be wet production can be used. For example, wet drilling, scouring of roadway, purification of air intake, wet grinding or spraying of limestone and ore, wet mix of glass and ceramic industry, wet sand molding in foundry industry, wet open sand cleaning, chemical sand cleaning, etc.
3) Airtight, air suction and dust removal. For dust producing posts that cannot adopt wet operation, airtight air suction and dust removal method shall be adopted. All equipment that can produce dust shall be sealed as far as possible, and local mechanical suction shall be used to maintain a certain negative pressure in the sealed equipment to prevent dust escape. The extracted dusty air can be discharged only after dust removal and purification to avoid polluting the atmosphere.
In the design of dust collection system of limestone grinding production line, the following aspects shall be paid attention to:
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