What are the main hazards in a paint shop? Workshop workers should pay attention to how to protect themselves?

       

In recent years, as people pay more and more attention to health, many painting workers are also worried that poorly designed painting workshops will cause them to suffer from occupational diseases, so that many companies are facing the problem of difficult recruitment. If we want to solve this problem, our enterprise managers must first understand the main hazards of the painting workshop, what measures should be taken to manage them, and how to let workshop workers know how to protect themselves. Today, Chuangzhi coating will be popularized for everyone!

1. What are the main hazards in the paint shop?



Everyone in the industry knows that the main harmful substances in the painting workshop are divided into three categories, including exhaust gas, waste water and waste residue. Among them, exhaust gas is a major threat to the staff and production safety of the painting workshop. Because it will form paint mist, organic solvent vapor and dust during the spraying process, the long-term exposure and inhalation of the operator can cause chronic poisoning, which is harmful to health. If they are discharged outdoors, it will cause air pollution. Some solvents with photochemical reactivity can form more toxic substances after being irradiated by ultraviolet rays in sunlight, causing public nuisance.



In addition to the three wastes mentioned above, the main hazards in the painting workshop are the coatings used in the spraying process. The toxicity of coatings is mainly caused by toxic substances such as solvents, pigments and some other materials. Organic solvents generally have fat-dissolving properties (have a good dissolving effect on oils and fats). Therefore, when the solvent enters the human body, it can quickly react with fatty substances, especially on nerve tissue, resulting in paralysis, production and movement and language barriers. After the organic solvent enters the human body, it can quickly interact with fatty substances, especially to paralyze nerve tissue, resulting in movement and language barriers.

The toxicity of organic solvents to the nervous system is common, but due to different chemical structures, various organic solvents have their own characteristics and different toxicity. The toxic solvents mainly include benzene, tetrachloroethane, isocyanate and so on. Taking benzene as an example, long-term work in an environment with a concentration of 100-300 mg of benzene may cause chronic poisoning of different degrees. Among them, benzene poisoning can be divided into the following three situations:



(1.) Mild benzene poisoning: There may be headache, dizziness, general weakness, fatigue and lethargy, palpitations and loss of appetite, and occasionally nosebleeds and bleeding gums.



(2.) Moderate benzene poisoning: white blood cells drop below 3000, red blood cells and platelets decrease, nose and gums bleed frequently, subcutaneous congestion and purpura may appear, women's menstrual period is prolonged, and resistance is decreased.



(3.) Severe benzene poisoning: leukocytes drop below 2000, red blood cells and platelets are greatly reduced, oral mucosa and subcutaneous hemorrhage, extensive retinal hemorrhage, liver enlargement, significant changes in skeletal tissue, polyneuritis, aplastic anemia, etc.



In order to ensure the health of the operator, exhaust and ventilation must be used to reduce the concentration of solvent vapor in the air to below the maximum allowable concentration, that is, a safe concentration that will not be damaged for a long time. Some pigments (such as lead-containing pigments and compounds such as antimony, cadmium, mercury, etc.) and antifungal agents used in wooden carts (such as organic mercury, octahydroxyquinoline copper salt) are harmful substances, which can cause poisoning if inhaled. . Some base materials are also very toxic, such as polyurethane paint containing free isocyanate, which can make the respiratory system allergic; organic amine chemical agents contained in cyclic resin coatings may cause dermatitis and so on. Therefore, precautions must be taken when applying these coatings to prevent inhalation or contact.