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Workers working in cement factories are exposed to opaque smoke and dust all day long, and the incidence rate of occupational diseases is much higher than that of ordinary industries. Is there a good way to prevent it? Silicosis, which is currently the highest occupational outbreak rate in cement production, also exists in the coal mining industry, it is caused by the high-density dust in the cement production process, and the cement dust enters the human lungs through breathing, and accumulates over time, becoming a silicosis disease that is difficult to treat.
For cement workers with silicosis, breathing difficulties and coughing are the most common symptoms, and in severe cases, coughing up blood and endangering life.
2. Hearing impairment, severe deafness. Cement production requires the participation of high-decibel noise equipment such as mills and crushing equipment, and production workers are in this working environment for a long time, and if there are no certain protective measures (earplugs, etc.), it will cause hearing impairment and deafness.
3** disease. The particularity of cement production, the workshop has been in a state of high temperature radiation for a long time, and after a long time, workers with poor resistance will get ** disease or ** cancer.
Some workers have serious cracks and cracks on their hands due to direct contact with cement production raw materials without protective tools for a long time.
Formulate strict safety production rules and regulations. Production workers are required to be protected from their posts, "with gas masks", "with noise-isolating earplugs", "with rubber gloves", and "with safety helmets". If you don't do any of this, you can't enter the production workshop.
2. Adopt low-noise, tightly sealed equipment.
3. Regularly organize physical examinations for cement production workers, and pay special attention to employees who have signs of illness, and never delay if they are sick.
4. Continuously upgrade the environmental protection dust removal equipment in the cement production workshop, and strive to provide a good working environment for the production workers.
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According to the notice of the "Catalogue of Occupational Diseases" issued by the Ministry of Health and the Ministry of Labor and Social Security on April 18, 2004, 115 occupational diseases in ten categories, among which the most common ones in the cement industry are as follows. Category 1: Pneumoconiosis (silicosis, coal pneumoconiosis, cement pneumoconiosis, welders' pneumoconiosis).
Category III: Occupational poisoning (carbon monoxide poisoning). Category IV:
Occupational diseases caused by physical factors (heat stroke category VIII: occupational ear, nose, throat and oral diseases (noise deafness). Other:
Such as the second category of occupational radiation sickness; Category VI Occupational Diseases; Category VII occupational eye diseases, etc. The first class of occupational diseases needs to start from little by little, and it is necessary to start from prevention, and it will be too late to treat the onset of the disease.
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Environmental factors leading to occupational diseases in cement enterprises: dust causes silicosisThe unorganized emission dust generated in the process of shipment, storage, pre-homogenization, transportation and unloading of the raw material mining, crushing to grinding and calcination production system of cement production is sucked in large quantities and for a long time, and employees on the post may lead to pneumoconiosis. In the process of high-temperature calcination and drying of clinker, a small amount of CO, C02, NOP H2S and organic compounds are produced, as well as toxic and harmful gases emitted when using waste, which leads to poisoning after excessive inhalation.
High temperature causes heat stroke clinker high temperature calcination process and drying process, has a large radiant heat, so that the surrounding posts form high temperature, especially in poor ventilation and summer, heat stroke and other diseases are very easy to occur. Noise causes occupational deafnessThere are many noise sources (such as mechanical power source and gas power source noise) in cement enterprises, which have the characteristics of high intensity and long time, which is easy to cause chronic deafness in post workers, and also has a certain impact on the function of the nervous system and cardiovascular system.
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The main causes of occupational disease hazards in cement plants:
Productive dust dust exists in the whole process of cement production, one is coal dust, which exists in the whole preparation process of pulverized coal, the other is silicon-containing mineral dust, and the third is cement dust, which exists in the whole process from cement grinding to product packaging and transportation.
Production noise, noise is generated by various production machinery, and the sound pressure level intensity is large, the main equipment that produces noise is all kinds of crushing equipment, mills, conveying equipment, fans, air compressors, etc.
High temperature, high temperature mainly exists in the kiln tail preheater, MFC decomposition furnace, rotary kiln and before the cooling of the sintered material, followed by the electric dust collection exhaust gas at the kiln head and kiln tail, slag drying and transportation and equipment maintenance.
Production poisons, raw coal combustion in the kiln and cement raw materials preheating, decomposition, calcination process produces a certain amount of toxic gas, under normal production and operation conditions, the harm is very small.
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When ** is covered with dust, it can cause dermatitis, especially in summer, sweating, dust is easy to block pores, which can cause folliculitis; Alkaline dust, such as cement, can cause dryness and wrinkles in winter. Long-term inhalation of large amounts of dust containing a high percentage of silica can cause silicosis. In the early days, although they should be transferred out of the jobs that are exposed to silica dust, they can still participate in the work that they can do.
More importantly, patients should actively participate in physical activities under the guidance of doctors, such as tai chi and breathing gymnastics, which are of great benefit to improve respiratory function and enhance gas exchange. To advocate wet operation, we should also pay attention to personal protection, but Liang Qin can wear a soft styrofoam mask with light and good breathability and high dust filtration rate, or wear an air-supplied rubber mask. If the dust concentration is very high (e.g. sandblasting), an air-driven helmet should be worn.
Doing a good job in occupational medical services is also an important part of preventing dust hazards. Workers exposed to silica dust are required to undergo regular medical examinations before and after they enter work. The examination is mainly a chest x-ray.
Sanitation personnel should regularly measure the concentration of dust in the air in the workplace. Diseases caused by organic dust should also be protected in time.
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Pneumoconiosis, because in the work, it is not clear that the wet dust flies into the air and is sucked into the lungs, and it is easy to get pneumoconiosis after a long time! So your best way to prevent it is to wear a mask and protect yourself while you are working.
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