1、 Metal tank carbon steel tank, stainless steel tank, aluminum tank, etc. Nonmetal tank plastic tank, ceramic tank, FRP tank, etc. Metal non-metal composite tank steel lined polytetrafluoroethylene tank, steel lined polyethylene tank, steel lined polyolefin tank, steel lined rubber tank, etc. This plastic tank does use any additives plastic fillers in the production process. It is completely processed with the company's unique formula, adding polyethylene (PE) materials, the tank body to the inlet outlet, manhole, flange, etc., all welded without welded joints. Storage tanks also have no welded joints, no leakage, no poison, light weight, anti-aging, impact resistance corrosion resistance. Its price is lower than stainless steel tank, ordinary FRP tank, polypropylene tank PVC tank, its service life is longer under natural conditions. 2. steel lined plastic (polyethylene) storage transportation containers reaction equipment series are metal non-metal composite containers: steel lining plastic (tortoise shell lining steel, net, plastic three integrated) is the essence of steel plastic composite products. Steel mesh (tortoise shell) is welded on the surface of steel body, polyethylene is used as raw material, spinning plastic process (rolling plastic process) is used to form on the surface of steel body as a whole. Because the steel mesh (tortoise shell) is integrated with polyethylene, the steel mesh is welded on the steel surface, it is difficult for polyethylene to be separated the steel surface. Therefore, it is a very good corrosion-resistant product. The inner surface of the product is flat, smooth firm. Compared with the traditional steel lined plastic plate tank steel lined FRP tank, it has the advantages of corrosion resistance, no leakage, no peeling, wear resistance long service life. It is an ideal container for transporting corrosive liquid. It is applicable to automobile transportation tank, pipeline, low pressure tank, vacuum tank, reaction kettle, fermentation tank, separation tank below 100 ℃, sub exchange tower, pickling tank, settling tank, neutralization tank, crystallization tank, concentration tank, electroplating tank, pickling tank, etc.

　　Tank maintenance

　　In order to ensure the safety production equipment operation of the enterprise, improve the service life labor production efficiency of the equipment, it is necessary to conduct regular inspection maintenance of the operating mechanical equipment to prevent the impact of production machinery failure, casualties caused by mechanical accidents. The actual production, safety operation regulations safety maintenance management system are formulated through research. The maintenance period of the tank is generally 60-120 days for medium repair 12 months for overhaul. Medium repair: it is forbidden to operate, discharge, drip clean replace the level gauge, repair replace the water inlet, water outlet drain valves, dredge clean the cooling water coil. Check repair the exhaust flame arrester of the safety valve. Repair the anti-corrosion layer insulation layer. Overhaul: including the repair of the inner part of the tank in the medium repair project, as well as the repair replacement of the cylinder in case of cracks, severe corrosion, etc. Polymer composites can be used for repair. According to the internal external inspection requirements, after repairing replacing the oil cylinder joint, leakage test hydraulic test shall be carried out. In addition to embroidery insulation. Handle other problems found in internal external inspection of oil tank. The maintenance methods quality standards for tank body maintenance, such as opening, repair welding replacement of cylinder body joints, shall meet the requirements of specifications other relevant standards. The specific construction scheme shall be formulated approved by the technical department of the unit. The materials used for repair (base metal, welding rod, welding wire, flux, etc.) valves must have quality certificates. When using old materials, valves fasteners, they can only be used after passing the inspection. The assembly fasteners of the storage tank shall be coated with lubricating materials the bolts shall be tightened diagonally. The non-metallic gasket cannot be reused generally. When choosing gasket, the corrosiveness of medium should be considered. After the repair, the anti-corrosion thermal insulation work can be carried out only after the inspection is qualified.

　　Repair methods quality standards of unqualified tanks in use: 1. Grinding method, eliminating defects; 2. Welding repair; 3. Replacement of barrel; 4. Excavation repair; 5. Quick insertion, which can be solved by traditional field repair welding, has great danger. Due to the long construction period high labor intensity of workers, the use of replacement medium for welding repair will cause huge shutdown losses. According to different equipment, different operation conditions different corrosion leakage forms, the technology of American meijiahua technology for different equipment technology products can protect the equipment quickly, simply effectively, especially because of the comprehensive performance of polymer composite materials, such as chemical corrosion resistance adhesion, which can avoid the adverse effects repair of traditional repair welding, The service life of the equipment after maintenance is longer than that of the new equipment. It can fundamentally solve the causes of equipment corrosion leakage, help enterprises improve the level of equipment management, reduce maintenance costs, improve the competitiveness of enterprises.

　　Safety measures for maintenance repair 1. Tanks for storing combustible gas liquid shall be equipped with necessary fire fighting equipment. It is forbidden to smoke in the tank, open fire heat, bring the fire source into the tank area. 2. The storage tank storing inflammable, explosive, toxic, corrosive other media shall strictly implement the relevant provisions of dangerous goods management. 3. Before the tank maintenance, the power supply of the electrical equipment related to the tank must be cut off the equipment handover procedures shall be handled. 4. After the medium in the tank is used up, the inlet outlet valves shall be closed blind plates shall be added to block the pipes equipment connected with the tank, obvious isolation signs shall be set. 5. Tanks containing inflammable, corrosive, toxic asphyxiating media must be replaced, neutralized, disinfected cleaned, analyzed inspected after treatment. The analysis results shall meet the requirements of relevant codes standards