Safety production and precautions for painting workshop operations

coating workshop used in the vast majority of paint and solvents are toxic substances, in the work of the formation of paint fog, organic solvent vapor and dust, operators long-term contact and inhalation of the body can cause chronic poisoning, harmful to healthIf they are discharged outdoors, it leads to atmospheric pollution, and some photochemical solvents can form more toxic substances after exposure to ultraviolet light in sunlight, causing public hazardscar repair enterprise coating workshop is mostly three-dimensional operation, high degree of automation, the use of acids, alkalis and other flammable coatings and other substances to deal with the painted parts, if not properly operated, it is easy to occur personal and equipment accidentsIn addition, in the coating process to produce waste gas, waste water and waste, such as "three waste", pollution of the environmentTherefore, the coating workshop is the focus of the factory's public hazard prevention and control and fire prevention and control areaTherefore, technicians and managers engaged in coating work must be fully familiar with coating safety and effective methods to control the occurrence of pollution and fire disastersIn the coating, because the material used in containing harmful substances, so that the operator may suffer from acute or chronic poisoning, occupational diseases, skin diseases and so onIt is therefore necessary to strengthen the protection of the working environment, labour protection and the health of workerscoatings are mainly caused by toxic substances such as solvents, pigments and some of their materialsOrganic solvents are generally fat-soluble (have a good dissolving effect on grease)Therefore, when the solvent enters the human body can quickly interact with fatty substances, especially nerve tissue to produce and move and language disordersWhen organic solvents enter the human body, they can quickly interact with fatty substances, especially in nerve tissue, and produce action and language disordersThe toxicity of organic solvents to the nervous system is common, but because of the chemical structure, various organic solvents and their personality, toxicity is not the same, of which toxic solvents are mainly benzene, tetrachloroethane, isocyanic acid and so onIn the case of benzene, long-term work with a concentration of 100-300 mg and m may produce a different degree of chronic poisoningmild benzene poisoning: headache, dizziness, general weakness, fatigue drowsiness, palpitations and loss of appetite, and occasional nosebleeds and bleeding gumsmoderate benzene poisoning: white blood cells dropped below 3000, red blood cells and platelets decreased, nose, gum bleeding frequently, subcutaneous bruising, purple spots, women's menstrual period prolonged, resistance decreasedsevere benzene poisoning: white blood cells dropped below 2000, red blood cells and platelets were greatly reduced, oral mucosa and subcutaneous bleeding, extensive retinal bleeding, liver swelling, significant changes in bone tissue, multiple neuritis, regenerative anemia, etcin order to ensure the health of the operator, it is necessary to use exhaust and ventilation to reduce the concentration of solvent vaporin in the air below the maximum permitted concentration, i.ea safe concentration that is not damaged for a long timeSome pigments (e.glead-containing pigments and compounds such as vans, cadmium, mercury) and anti-mold agents used in wooden car cases (e.gorganic mercury, octaxyquina copper salts) are harmful substances that can cause toxic reactions if inhaled into the bodySome substrates are also very toxic, such as polyurethane paint contains swim-divorced cyanide, can make the respiratory allergy; Therefore, precautions must be taken when coating these coatings to prevent inhalation or contactpersonnel engaged in coating work should be aware of the following in their work:1, read the technology carefully before using any coatings and tools, and follow the safety operating instructions2, indoor construction should ensure good circulationThe exhaust system must be activated during coating operations in the paint booth and continue to operate about 10min after the spraying is completed to remove the spray and avoid solvent gas aggregation3, protective work clothes must be worn when using and handling coatingsIn the work of rust removal, grinding, spraying, etc., must wear protective glasses, filter masks, to prevent gravel, paint fog and other damage to the eyes and respiratory systemWear acid-resistant gloves and protective glasses when using acid to remove rust or lyeThe use of double-sub-coatings, especially those containing isocyanate, must be carried out in a painted room with a sealed and have a good ventilation system, and the operator must wear an activated carbon filter breathing mask or gas supply mask4Be careful not to touch the eyes, mouth and other exposed parts of the body when using toxic and harmful coatings and accessories If there is contact should immediately wash with a large amount of water, and ask a doctor to deal with 5, smoking, eating or storing beverage food in the coating workshop is prohibited 6, after work, before eating must be thoroughly washed hands and face 7 At any time to clean up the paint and other flammable materials spilled on the ground after the completion of construction should be closed paint buckets, cleaning tools and coatings; 8, if you feel unwell, you should report it as soon as possible and ask a doctor for examination