Shanwei PPH storage tank installation
The main contents of cleaning the HDPE storage tank are as follows: at the end of each manufacturing, clean the surface of the HDPE container with fingers, and continuously clean the outside of the mechanical equipment with a large amount of water. Damage to the thermal insulation layer is strictly prohibited. According to the processing technology, the solution can be cleaned after a certain period of time. For a long time, more than 72 hours, machines and equipment should be cleaned again before class. It is forbidden to enter acid liquor into the bobbin of this commodity. If the cleaning box requires acid, do not use acid with pH<2. Once the acid enters the casing of this mechanical equipment, hydrogen effect will occur, and the surface will fall like a fish scale on a large scale. The general cleaning cylinder uses 2% of sodium hypochlorite solution and uses tap water to clean the cylinder. The HDPE tank shall be cleaned according to the requirements of Chinese standards. When entering the machine and equipment for cleaning, the water bottle should be padded at the bottom of the sponge pad to prevent special tools from falling in. Wear rubber shoes to prevent damage to the laminated glass. To sort out the actual staff, the records must be sorted out immediately to determine the work experience and the inspection and signature of the project.
Shanwei PPH storage tank installation
What are the anti-corrosion treatment of PPH storage tank? For PPH storage tanks storing oil and product oil, since the performance required by the anti-corrosion materials in PPH storage tanks is electrostatic conduction, all PPH storage tanks shall be subject to anti-corrosion treatment with electrostatic conduction coating. The treatment of the external anti-corrosion coating of the tank is a comprehensive treatment that takes into account the anti-corrosion performance, weather resistance and aesthetic performance of the tank. In the design of anti-corrosion coating for PPH storage tank, it is necessary to consider that each anti-corrosion coating has temperature resistance and compatibility. If the alkyd anti-corrosion coating is used, it is necessary to avoid direct matching, because it will react with zinc powder. The cathodic corrosion protection of the tank is divided into impressed current cathodic protection on the outside of the bottom plate of the tank, and protective treatment on the anode of the ponding layer in the tank.
Shanwei PPH storage tank installation
The reason why the price of PPH storage tank is higher than that of PP storage tank. The production process is different. PP storage tank is a kind of storage tank made by welding polypropylene plates, while PPH storage tank is made by processing PPH particles after physical treatment. The raw materials are different. The raw material of PPH storage tank is PPH granular material, and the raw material of PP storage tank is polypropylene plate. The cost of PPH granular material is higher than that of polypropylene plate; Due to different processing equipment, PPH storage tank needs to use steel mold for processing, and it needs to use natural gas for preheating before processing. The startup cost is high, and PP storage tank directly uses polypropylene plate to enter the tank, so the cost is low; The power consumption is different. The PPH storage tank needs to use electric heating to melt the granular materials out of the steel mold. The power consumption is large. The PP storage tank is only the welding gun of the electric welding point, and the power consumption is small; PPH storage tank needs to be cooled and then demoulded, which is carried out through electrical equipment rather than PP storage tank; PPH storage tank is welded with extrusion type large electric heating traction gun, which has high power consumption. PP storage tank is welded with manual small traction gun, which has low power consumption; The labor cost is different. PPH storage tank has less labor than PP storage tank, which is why many plastic storage tank manufacturers hope to develop PPH storage tank.
Shanwei PPH storage tank installation
PPH waste gas treatment tower is generally divided into cylindrical tower body or square tower body. The cylindrical tower body is generally vertical tower, and the square tower body is generally horizontal tower. There are multi-stage packing rings inside. During operation, the waste gas flows upward from the bottom of the tower. Due to tangential entry into the tower, especially the guiding effect of the packing layer, the flue gas rotates and rises, resulting in full contact between the packing layer and the waste gas, which sprays the downstream liquid into droplets, leaving a large contact area between gas and liquid; The liquid droplets will also be driven by the air flow to rotate, and the centrifugal force generated will strengthen the air contact at night. They will fall onto the tower wall and flow down along the wall, passing through the overflow device to the next layer of packing, and then the spray nozzle will atomize again for gas-liquid contact.
Shanwei PPH storage tank installation
PPH storage tank is resistant to most acids, alkalis, organics, and mixed liquids. As long as the operating temperature is within the limited range, there will be no corrosion. Many media that PPH storage tank can resist will corrode stainless steel (special stainless steel is outside); In terms of protection, PPH storage tank is simple in protection and tools, and the manufacturer can handle it by himself; The operation temperature of dangerous chemicals is generally normal temperature, and the high operation temperature of PPH storage tank can reach 100 ℃. PPH storage tank has become a necessary equipment for chemical industry, smelting, rare earth, mining, pigment, printing and dyeing, new data, new energy, biomedicine, and even some professions have changed some stainless steel reaction kettles with normal temperature and pressure into reaction kettles made of PPH raw materials.
