FRP desulfurization tower series
FRP storage tank
Construction technology of FRP storage tank
The glass steel storage tank effectively overcomes the small feet existing in steel tanks, better solves the problem of corrosion protection inside and outside the tank, and improves the service life. At the same time, it has the characteristics of high support capacity of steel tanks. The internal corrosion protection measures are similar in that the FRP storage tank material itself has a strong anticorrosion performance. Any additional measures are needed to fundamentally solve the anticorrosion problem and have the value of expanding popularization.
Construction technology of FRP storage tank:
1. FRP storage tank field equipment assembly
(a) Installation of winding equipment: On-site winding adopts vertical winding equipment, combined assembling core molds, equipped with spray guns, and the whole winding process is completed and controlled by the computer according to the program settings.
(b) Mould installation: winding up and down the support rings of the mold on the site, adding vertical supporting ribs in the middle, and then applying a layer of plywood and a layer of plywood. And the poly film is wound on the surface.
2. The installation group of the glass steel tank top and the mold
A lifting hole is reserved in the center of the tank top plate, and the prefabricated tank top is hoisted to the assembled mold by a crane. The installation group is hoisted strictly according to. The wood used for mitering is cut according to the shape of the tank top to ensure tight butt joints.
3.FRP tank storage tank production
The tank body is completed by two processes: lining injection molding and structural layer winding.
(a) Lining molding: The liner is in direct contact with the storage medium, and the quality performance is directly related to the service life of the tank and its ability to prevent leakage.
(b) Can body winding: Can body winding is the guarantee of the strength of the entire can body. Its winding equipment is field vertical winding equipment with a maximum winding diameter of 25m and a maximum winding height of 12in. Its winding parameters are controlled by the computer to make its strength performance. Meet design standards.
4. Manufacturing process of glass steel tank bottom
The bottom cover is made directly on the basis. The structural layer is made first, and then the inner lining layer is made. The structural layer should be laid alternately with felt and cloth according to the requirements of the process. It should be well wetted and pressure coated with air bubbles. The overlap between the felt, cloth layer and the layer is less than 30inin. Corners should be alternately used for corner compensation. The inner lining layer is made of 3301 # resin back cover to allow small defects such as air bubbles and delamination.
5.FRP storage tank bottom tank assembly
The wrapped tank body is connected to the tank body and the bottom of the tank by a crane. The joints are filled with resin mortar, and then the joint between the inner wall of the tank body and the bottom of the tank is sealed with felt and resin. Circular arc, and then use felt paste to make 8-1Otnin thick sealing layer: the outer wall of the tank and the bottom of the tank, glass fiber winding yarn impregnated with resin, around the seam of the tank bottom, and then made with fiber felt or cloth.
Finally, the resin mortar is filled, and the resin content of the mortar is operated according to the design; the tank is connected to the bottom of the tank.
6.FRP tank storage tank lifting
Put the hoisting plate from the inside of the tank and fix it in the hoisting hole. The reverse of the connecting rope is less than 7
Structural characteristics of FRP storage tank
Medium characteristics: Hydrochloric acid is a very volatile strong acid. The concentration is between 0 and 38%, and the density is between 1.100 and 1.189 Kg / L.
Volume range: from 0.5m3 to 100m3, on-site winding production can reach 1500m3;
Inner diameter range: diameter DN600 ～ DN4000. On-site winding diameter is 4m ～ 25m;
Flange standards: Various standards are available, which can be selected according to user requirements;
Main styles: flat bottom vertical and round bottom horizontal;
Appearance color: translucent light green, special requirements to add gel coat or color paddle to change the appearance color;
Fixed feet: can be selected according to user's requirements, and the material is glass fiber reinforced plastic, carbon steel (glass fiber reinforced plastic anti-corrosion) or stainless steel;
Safety accessories: ladders, handrails, the material is selected from carbon steel (rust-resistant paint) or stainless steel;
Level accessories: glass level gauge, PVC level gauge;
Other accessories: The glass fiber reinforced plastic hydrochloric acid tank is standard equipped with a glass fiber reinforced plastic absorption tank to meet the requirements of environmental protection.
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