This regulation specifies the safe operation contents and requirements for the use of sulfuric acid. This procedure is applicable to the use of sulfuric acid in wet smelting workshops. 2 content (1) About the storage and storage of sulfuric acid 1. Sulfuric acid storage must use the relevant national standard storage tanks and their processing methods. Before adding sulfuric acid, the tank should be rigorously tested, the installation quality of each accessory component should be inspected, and the quality of equipment and pipelines should be inspected. After the quality problem, the tank can be used. 2. After the concentrated sulfuric acid enters the plant, it must be measured by the relevant departments such as the laboratory, and can be unloaded after the weight calculation meets the requirements of the purchase plan. If the concentration index is not reached, it will be rejected. 3. During the unloading process, attention should be paid to the tightness of the conduit and no dripping. After the unloading, the remaining sulfuric acid in the pipeline can be filled by a special person using a special bucket and poured into a sulfuric acid storage tank. 4. During the unloading process, all personnel exposed to sulfuric acid must wear a complete and standardized anti-acid protective device. 5. During the unloading process, the liquid level is monitored at all times, and the abnormal condition is detected and the pump is stopped in time, and effective treatment is carried out. (2) Maintenance and management of related equipment, facilities and pipelines 1. Strictly implement the safety technical operation rules of the sulfuric acid pump operation, monitor the mechanical performance and tightness of the sulfuric acid pump at any time, and immediately take effective measures to deal with abnormal conditions. 2. Regularly, the person in charge is responsible for maintaining and inspecting the storage tanks and pipelines, and finds that there are running, rushing, dripping and leaking phenomena. Strictly wear protective equipment during the process and strictly implement various safety and technical operation specifications. 1. Do not store all kinds of oil products around the storage tanks. In the daily maintenance process, keep the facilities around the storage tanks clean and free of oil. 2. Keep the storage tanks clean at all times and do not store any sundries. 3. Do not store any kind of fire, combustibles and various toxic and hazardous substances around the storage tank. Fireworks are strictly prohibited. 4. All transportation equipment in the plant should maintain a safe distance from the storage tank. When transporting materials, the material is prevented from colliding with the tank and the cofferdam. 5. When there is a hot or dynamic welding operation in the sulfuric acid system, the relevant approval system must be strictly implemented and the relevant operational specifications must be strictly implemented. 6. When sulfuric acid is on fire, it is generally possible to save with misty water or dry sand, foam, dry powder, etc. It is not advisable to use high-pressure water to prevent acid splashes and damage to save people. 7. Nitric acid is a first-grade inorganic acid corrosion product, which should avoid sun exposure. It is strictly forbidden to come into contact with organic matter such as wood chips, straw and wood, otherwise it will cause a fire. 8, firefighters should pay attention to anti-corrosion, anti-gas, must wear anti-virus masks, protective glasses or gas masks, wear rubber raincoats and long rubber shoes, wear anti-corrosion gloves. When the fire is extinguished, the person should stand in the upper wind. If the poisoned person is found, he should immediately go to the hospital for rescue and explain the name of the poisoned item for the doctor to treat. (4) Safe use of sulfuric acid 1. Strictly implement the process safety technical operation specifications to ensure the accuracy of the concentration and dosage of the process sulfuric acid liquid. 2. The operator must wear a full set of safe work protection when operating. 3. Do a good job in measuring, doing a good job of running records, and strictly implement the handover system. 4. Non-operators are prohibited from exposure to sulfuric acid and its solutions. It is forbidden to enter the storage area of ​​the storage tank. It is forbidden to carry out physical collision and chemical corrosion activities that may cause sulfuric acid equipment, facilities and pipeline valves. 5. It is strictly forbidden to work after drinking. Do not leave the post or work in a row to prevent illegal operations. (5) Leakage treatment of sulfuric acid 1. Pipeline leakage: Immediately stop the pump and close the inlet and outlet valves of the main pipe. Use professional tools to release the sulfuric acid in the pipe at the lowest point or leak point. After rinsing the acid drop point, perform reasonable plugging operation according to the relevant specifications. 2. Sulfuric acid pump leakage: stop the pump immediately and close the pump before the pump. Use a professional tool to release sulfuric acid at the point of the leak and rinse off the acid drop. According to the specific conditions of the leakage point, reasonable plugging operation shall be carried out according to the relevant specifications. 3. Storage tank leakage: Immediately report to the competent department and relevant leaders, notify the professional department to rush to the scene for rescue, delineate the dangerous area according to the specific situation, and determine the relevant protection level. 4. Quickly check the situation of the person in distress, the amount of leakage, the time of leakage, the location of the leak, and the scope of the spread. 5. Strictly implement the emergency handling plan for emergency accidents of hazardous chemicals in our factory. 6, the various methods of plugging see the following table: (6) Emergency treatment of sulfuric acid injury accidents 1. Sulfuric acid injury accident handling (1) Acute poisoning The poisoned person was immediately removed from the scene, oxygen was absorbed, and the income was atomized with 2% to 5% sodium bicarbonate solution, and pulmonary edema was actively prevented. Patients with obstructive dyspnea should immediately undergo a tracheotomy and give oxygen or apply a ventilator to assist breathing. To lavage swallowed immediately sulfate, the solution or suspension, milk, soy milk, eggs, green, peanut oil gavage magnesium oxide. Later, it is not appropriate to wash the stomach to prevent perforation. Do not use sodium bicarbonate to wash the stomach, so as to avoid CO2 and heat generated during acid neutralization, which will aggravate the damage and increase the pressure in the stomach to cause perforation. Symptomatic treatment. (2) Eye and skin damage Eye and skin contamination should immediately rinse the affected area with a large amount of flowing water, the rinsing time should not be less than 20min; after skin rinsing, it can be wetted with 2% to 3% soda solution, or can be wet with Revnor, Furancillin, and Vaseline bandage. Large areas of burns should pay attention to anti-shock and kidney failure. Eye burns were washed with 2% sodium bicarbonate solution, and 0.5% dicaine (containing 0.1% adrenaline) solution was added to the eye, and antibiotics and cortisone eye ointment were applied to the conjunctiva. 2, hydrochloric acid injury accident handling (1) acute poisoning occurs in acute bronchitis or severe cough, can be inhaled with 4% sodium bicarbonate solution, with sputum, cough and antibiotics anti-inflammatory drugs. Those with pulmonary edema can use dimethyl silicone oil mist, 0.5 to 1 bottle each time, and 1 to 3 bottles of cough foam, and the interval to the lungs is significantly reduced. (2) Skin and eye pollution should be quickly and thoroughly cleaned with plenty of water or soapy water, and washed with 4% sodium bicarbonate solution or wet, and those who are more severely burned should be debrided in time. 3, nitric acid injury accident handling (1) First aid and treatment after inhaling nitric acid fumes Immediately leave the scene to the fresh air, keep warm and keep warm, give 3% to 5% baking soda, dexamethasone 5mg, α-chymotrypsin 50,000 units inhalation. Inhale oxygen, keep the airway open, relieve phlegm and asthma, and actively prevent and treat pulmonary edema and prevent respiratory infections. Immediately after skin contact, remove contaminated clothing immediately, and rinse the skin thoroughly with 5% baking soda or water. One-time and second-degree burns can be given local treatment such as comfrey oil, moist burn cream, and shallow second degree burnout. More, after the epidermis is shed, care should be taken to prevent infection. For third-degree burns, the skin graft should be cut. (2) by oral nitrate, drinking milk, egg white, or aluminum hydroxide gel, protect the gastric mucosa, it may be early water, salt water or 2% to 3% soda to neutralize acid corrosion rapid dilution of mucosa The role can not be inserted into the stomach tube. High Effective Hygienic Insecticide,Farm Insecticide,Insecticides For Crops,Insecticide Powder heydchem limited , https://www.heydchem.com
Safety procedures for the management of sulfuric acid use in the concentrator
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