1. Distribution of production vibration in petrochemical working environment
In the working environment of petrochemical industry, operators who use tools such as electric drills, air shovels and pneumatic picks often come into contact with productive vibration during maintenance or overhaul; In addition, the staff who drive locomotives in refineries, rubber factories and other factories will also be subject to obvious vibration; There are also operators of compression equipment, who will also be exposed to production vibration.
2. Harm of production vibration
Productive vibration will reduce the sensory function of human fingers and toes, and affect human muscles and joints. And the stronger the vibration, the longer the action time, the more obvious the impact on the human body. Petrochemical workers who have been exposed to local vibration for a long time may suffer from dizziness, insomnia, palpitation, fatigue and other discomfort symptoms, as well as numbness, pain, cold hands, sweaty palms and white fingers. It may also lead to trembling hands and unstable grip. Petrochemical workers exposed to whole body vibration for a long time may have pale face, sweating, excessive saliva, nausea, vomiting, headache, dizziness, loss of appetite and so on. There may also be a drop in body temperature or blood pressure. These have caused great harm to the health of employees and need to be prevented in daily work.
3. Preventive measures for productive vibration hazards
(1) technical measures. To prevent productive vibration, we should first start with process reform, for example, chemical rust remover can be used instead of strong vibration mechanical rust removal process, water flow sand removal can be used instead of pneumatic shovel sand, and hydraulic welding and bonding can be used instead of riveting, which can obviously reduce the occurrence of productive vibration.
(2) Reduce the chance of vibration contacting human body. Some measures can also be taken to reduce vibration, such as designing automatic and semi-automatic control devices to reduce the chance of hands and limbs directly contacting the vibrating body, or to contact the temperature of mechanical parts of hands to prevent hands from being hit by cold air.
(3) isolate vibration. In addition, taking some vibration isolation measures can also reduce the harm of vibration to human body, such as using rubber pads and other vibration isolation materials where the compressor contacts the floor to reduce vibration;
(4) Strengthen personal protection. For petrochemical workers, personal protective measures should be strengthened, such as providing them with vibration-reducing gloves and cold-proof clothes, soaking their hands in hot water at rest, and supplementing foods with high protein, high cellulose and high calorie.
(5) Do a good job of anti-vibration supervision. As an enterprise, it is necessary to monitor and manage the working environment that may produce vibration and its harm, arrange the working hours of employees reasonably, implement work by turns or increase the rest time in the middle of work; Personnel who are not suitable for vibration operation or have been harmed by vibration should be transferred out in time; In addition, it is necessary to give regular physical examinations to practitioners to know their health status in time and prevent vibration from causing serious harm to them as soon as possible.