• 11 Nov, 2022
• By EPIC Powder
• 2 Comments

How to avoid safety problems in the process of superfine powder processing by air jet mill EPIC Powder Machinery

Airflow pulverizers include those that may cause respiratory pneumoconiosis and dust explosion. The particle size of the dust obtained by jet mill is basically 5 mu; M below, and 5μ Dust below m is harmful to human body. Therefore, the probability of pneumoconiosis occupational disease will be significantly increased for the operators who use air flow pulverizer to break samples. At the same time, dust explosion may occur after the dust is dispersed in the air on a large scale to form dust clouds. Because the dust particles not captured in the sample crushing process of air flow pulverizer have proper particle size and distribution state: generally, the particle size is less than 5 mu; m. The dispersion stability in the air is good, and it is easy to reach the explosion limit. The consequences of dust explosion are also extremely serious

If there is enough combustion supporting air around these particles and it has its zui small ignition energy, dust explosion is likely to occur. Moreover, the shock wave generated by the local dust cloud explosion makes a large amount of deposited dust fly and mix with the air, which may also form a secondary explosion. Due to the characteristics of large energy, serious damage and short explosion time, dust explosion is easy to cause incomplete combustion, thus producing a large amount of carbon monoxide gas and poisoning personnel. Therefore, the consequences of dust explosion are extremely serious. Safety measures during the operation of air flow pulverizer In order to reduce the dust hazard as much as possible, in addition to the use of dust removal equipment and protection, the following management measures need to be implemented: (1) increase the humidity in the operation area, strengthen ventilation, store fire fighting equipment, etc. (2) As there is a slight leak in the manufacturing process, the dust will come out, causing pollution in the operation area. Therefore, the tightness of the joint shall be ensured. (3) Operators shall be provided with protective equipment according to regulations, and they shall also form the habit of wearing protective equipment correctly according to regulations. (4) Maintain and manage the existing dust-proof equipment! Ensure its normal operation and play the role of dust prevention. At the same time, we need to invest in technical transformation to improve the dust prevention efficiency of dust prevention equipment and the level of operation automation