Precautions for using explosion-proof electric hoists
Publication Time:
2021-10-29
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Explosion-proof electric hoist It is a light and small explosion-proof lifting equipment designed and manufactured according to China's explosion-proof standards. It is characterized by its light weight, small size, and large lifting capacity. Due to the frequent use of explosion-proof electric hoists and improper operation, malfunctions often occur. So, what precautions should be taken during the use of electric hoists?
1. Before hoisting operations, conduct a no-load test to check whether the operation is normal;
2. Before hoisting operations, carefully check whether common components such as wire ropes and hooks are damaged;
3. During hoisting operations, it is forbidden to stand under the hook, and non-staff personnel are prohibited from entering the work area;
4. Regular inspection, maintenance, and servicing Explosion-proof electric hoist and promptly address any problems found;
5. After each use of the explosion-proof electric hoist, be sure to cut off the power supply.
Explosion-proof electric hoists are special lifting equipment mainly used in explosion-proof mines and places where explosive gases are present. When selecting, different explosion-proof grade electric hoists can be selected according to different occasions. The following is a detailed introduction on how to select explosion-proof electric hoists. Before selecting an explosion-proof electric hoist, the usage environment, lifting height, and voltage requirements must first be determined, and then the working time should be specified, whether it is continuous work or intermittent work, so that the equipment can be matched according to the actual usage requirements.
Explosion-proof electric hoists are divided into Class I and Class II. Class I: Explosion-proof hoists should be used in coal mines. Class II: Explosion-proof hoists for explosion-proof gas environments other than coal mines. Class II explosion-proof hoists are divided into explosion-proof hoists of IIA, IIB, and IIC. IIB explosion-proof hoists can be used under the conditions of IIA explosion-proof hoists. IIC is applicable to the use conditions of IIA and IIB explosion-proof hoists.
Temperature group: Explosion-proof electric hoist The surface temperature of electrical equipment should not exceed 150℃, at which point coal dust may accumulate on the surface of the electrical equipment. Not exceeding 450℃, at which point coal dust will not accumulate on the surface of the electrical equipment or financial measures (such as sealing, dust prevention, and ventilation) can prevent coal dust accumulation.
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