How is the noise of pulverity of pulveral oysters?

　　The noise pollution of the drizzle of the drizzle is a big problem that plagues the efficiency of the powder coal blower. Because the noise of the device is not only harmed by the health of workers and maintenance people, and the destruction of the environment. So we need to understand its noise source and resolve.

　　Coal-raw roller noise source

　　(1) noise generated by the cylinder When the cylinder is rotated, the steel ball collides with steel balls, steel balls and cylinders. The resulting mechanical noise can reach 115 dBA through the noise level of the cylinder outward radiation. On the top, the noise band is wider.

　　(2) Electromagnetic noise generated by the noise motor generated by the motor and the transmission mechanism, the airflow noise generated by the fan. The motor noise is proportional to the motor power and speed, and its noise level is generally 90 dBA-115DBA. The mechanical noise of the transmission is mainly caused by mutual friction between the collisions and the components between the gears.

　　Coal peel meter noise control method (1) damped sound insulation layer wrapped in a fan-like shell with a set of sound insulation materials, Reduce the noise of the cylinder. This method usually reduces 5-10 dBA, and the effect is not ideal.

　　(2) The soundproof hood is used to close the cartridge portion of the fly ash mason, block the noise transmission path, thereby reducing the radiation noise of the barrel. This method is more effective, and the noise reduction value can usually reach about 20 dBA. However, the installation of the soundproof makes it difficult to perform overhaul and operation. At the same time, due to the motor and transmission mechanical packages in the sound insulation, it is difficult to ventilate, difficult heat dissipation, and the maintenance work is also very inconvenient. (3) instead of the rubber lining with manganese steel liner. The original manganese steel liner is changed to the rubber lining. The impact noise between the steel ball and the cylinder can be greatly reduced. The noise reduction value is 12-15 dBA. The effect is obvious, but there is still a problem with the life of rubber lining.

　　Because, the noise pollution of the drizzle peel mill is a big problem that plagues the powder coal gray mill manufacturer and the user. In the face of the noise, operator and maintenance personnel of the drums, the health of the operator and the maintenance personnel constitute a serious threat, so we must solve it in accordance with the requirements, from ensuring the equipment.