Analysis and solution of safety accident in rotary kiln

Rotary kiln equipment is a common building materials equipment, rotary kiln in the initial installation, whether the installation is scientifically related to the safety of rotary kilns. Only the correct installation can avoid the potential safety problems of rotary kiln, rotary kiln safety accidents are divided into equipment safety and personal safety. In the process of operating the rotary kiln, we should promptly find the potential safety hazard and solve it in time. In order to be able to help the majority of users to solve the rotary kiln safety accident, today for everyone to share rotary kiln safety accidents analysis and solutions. Rotary kiln safety accident analysis: 1. Equipment safety accident analysis Equipment safety accidents involve all aspects of the problem, the operator should promptly overhaul the equipment, for flammable and explosive security risks, be able to take appropriate measures. First of all, we must first analyze and find out the cause of equipment safety accidents, usually from the following safety accidents: (1) If the coal mill and kiln tail use bag type dust collector, so some combustibles, when the combustibles reach a certain concentration, there are three conditions of open flame or high temperature will cause an explosion. (2) When the coal mill placed in kiln head, clinker particles easier to pump coal mill system, clinker stability is high, can meet the conditions of flame explosion. (3) If the dust collector of rotary kiln have long-term crust, should cause the operator's attention, when it reaches a certain level, spontaneous combustion will slowly take place. Once serious spontaneous combustion, it will explode. 2. Personal safety accident analysis Rotary kiln safety accidents, especially personal safety is very important, rotary kiln firing system, has a big threat to personal safety. In order to avoid personal safety accidents, then we should note the following: preheater skin poke material, kiln out of brick, kiln ignition deflagration, can lead to personnel accidents. Rotary kiln safety accident solutions: 1. Operators can control the temperature of hot air into the mill, to avoid the accident. 2. Rotary kiln clinker dust control measures can reduce the risk of accidents. 3. To prevent the coal feed inlet have coal accumulation. 4. Explosion-proof valve effective set. 5. Coal mill as far as possible placed in the kiln tail. 6. Can set the alarm system, set the fire extinguishing system. For example, in the mill pipe, coal mill, bag dust outlet, coal warehouse and other parts to set. 7. Operators should pay more attention to long time low temperature of bag dust collection hopper, to prevent spontaneous combustion of the skin occurs. Therefore, users need to set the temperature monitoring in coal mill, coal bunker, bag dust collection, coal bunker and other parts, and set the alarm system. 8. After the rotary kiln is stopped, the coal can not be stored in the coal bunker. 9. In order to effectively prevent dust friction electrostatic fire lead to the explosion, then need to connect pulverized coal transporte, measuring with a wire to ground. 10. Operators can clean the coal mill inlet, coal mill, bag dust collection and ash bucket, coal bunker and other parts, to avoid accumulation of spontaneous combustion. Henan Zhengzhou Mining Machinery Co.,Ltd. have more than 60 year’s production and installation experience, the installation directly to eliminate the potential safety hazard. However, in the daily operation, operators need to develop good habits, to clean and maintain the rotary kiln on a regular basis, regular maintenance, can effectively prevent potential safety problems.