Shanwei PPH Reactor Company
PPH storage tank mainly includes core processes such as tank body fabrication, bottom, top, manhole, internal and external welding of inlet and outlet flange interface, which will directly affect the integrity, aging resistance, leakage prevention, service life and mechanical strength of the entire PPH storage tank. PPH storage tank body is manufactured by spiral extrusion winding technology. PPH particles are melted on the spiral extrusion winding machine, and then the molten extrusion materials form a can body on the mold. When the temperature is reduced to a certain extent, the tank can be demoulded to ensure the integrity of the tank. However, in the traditional processing form of polypropylene tank, the plate is welded into the tank. Since the very wide plate is 2000 mm, the height of the tank body is generally more than 2000 mm. In actual processing, the tank bodies are welded one by one and then formed manually. Then, for safety reasons, a stiffening ring is added at the connection of the tank.
Shanwei PPH Reactor Company
The raw material of PPH mixing tank is PPH granular material, and the raw material of PP storage tank is polypropylene plate. The price of PPH granular material is more expensive than polypropylene plate; The processing of PPH mixing tank requires the use of steel molds. Before processing, natural gas is used for preheating. The startup cost is high. The PP storage tank is directly rolled into a tank with polypropylene plates, which costs little; The PPH mixing tank needs to use electric heating to melt and extrude the particles onto the steel mold, which consumes a lot of power. The PP storage tank only has the power of the welding gun, which consumes less power; The PPH mixing tank needs to be cooled and then demoulded, which are all performed by electric devices, but not the PP storage tank; The PPH mixing tank is welded with a large extrusion electric heating gun, which consumes a lot of power. The PP storage tank is welded with a small manual gun, which consumes less power; Others, such as steel mold replacement, equipment land occupation and equipment maintenance, are not required for PP storage tanks.
Shanwei PPH Reactor Company
The key requirements of PPH tank design are: no danger, reliable: the data of high strength and toughness of materials, and the interchangeability structure of media should have sufficient rigidity and pressure bending performance, and the sealing performance should be good. Meet process request: function request of life request. Good comprehensive economy has high consumption efficiency, low consumption coefficient, reasonable structure, complicated manufacturing, convenient transportation and convenient equipment. Easy to operate, maintain and control: maintain and better control. Good environmental performance of PPH storage tank: At present, great progress has been made in the design scheme, engineering construction and data information of large and medium-sized storage tanks in China. However, our country still lacks experience in the design and construction of high strength data of large storage tanks. In the future, our country should strengthen the development and implementation of large storage tanks to make the production process of large storage tanks more carbon friendly.
Shanwei PPH Reactor Company
PPH storage tank is also a polypropylene storage tank. Polypropylene can be divided into many types, and PPH is only one of them. PPH storage tank has great advantages in strength, acid and alkali resistance, aging resistance and appearance. The plastic storage tank is made of polypropylene (PP), reinforced polypropylene (PPH) and other raw materials, and is integrally molded by a special rotational molding process. There are no welding, no leakage, light weight, aging resistance, impact resistance, corrosion resistance, and long service life. So there is only one letter difference between PPH storage tank and PP storage tank. Is there any relationship between them? Don't tell me, there are really connections and differences. Let's get to know. PPH storage tank is formed by using alloy polypropylene technology at one time, but PP storage tank is rolled with polypropylene sheet, so its anti-corrosion performance will be much lower. PPH storage tank is more resistant to temperature than ordinary polypropylene, and can resist the erosion of strong chemicals. In addition, the properties of PP material and PPH material are similar, acid and alkali resistant and corrosion resistant. PPH storage tank is more expensive than PP storage tank. The plastic storage tank has great performance in terms of performance and is relatively durable. To some extent, it is a kind of tank that cannot be replaced by ordinary storage tanks.
Shanwei PPH Reactor Company
When PPH storage tank is used, the filling rate shall not be greater than 95%, and excessive filling is strictly prohibited. Made of polypropylene, it can contain inorganic acid, malic acid, salt, ammonium, alkali, oil and most gaseous compounds under normal temperature and pressure; The lower cracking temperature and dissolution temperature of PPH storage tank are - 70 ℃ to 108 ℃, and the temperature of the liquid contained is usually between - 40 ℃ and 60 ℃; The filling rate of PPH storage tank shall not be greater than 95% when it is used, and excessive filling is strictly prohibited; When the valves, instruments, pipes, etc. on the equipment are frozen, nitrogen, air or hot water at 70~80 ℃ shall be used for thawing, and open fire heating is strictly prohibited; The PPH storage tank shall be equipped with acid and alkali resistant gaskets when containing acid and alkali liquids, and insoluble rubber gaskets when containing organic solvents; If you are not sure whether you can contain the required substances, you can consult our technical personnel, and if necessary, you can carry out the tank material sample soaking test.
Shanwei PPH Reactor Company
PPH storage tank has good temperature resistance, acid and alkali resistance, high strength and impact resistance, longer service life, and no environmental stress fracture damage. At present, the tank has become a necessary equipment for chemical industry, smelting, rare earth, mining, pigment, printing and dyeing, new materials, new energy, and biomedicine. In the next few years, PPH storage tanks will be widely used. Manufacturing process of PPH storage tank: extruding and winding PPH granular materials. The product is formed at one time without welding. PPH tank is welded by polypropylene plate. In terms of corrosion resistance, PPH vertical storage tank and PH vertical storage tank have similar corrosion resistance. From the perspective of safety performance, the PPH tank shell is integrally formed without welding and leakage, while the PPH tank is welded, which is easy to cause leakage and increase unsafe factors. There is a big gap between the other two properties, such as aging resistance.
