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, and small measures plus any measures can fundamentally solve the corrosion protection problem and have the value of expanding popularization.
Construction technology FRP tanks of:
1, the field devices assembled FRP tanks
(a) Installation of winding equipment: On-site winding adopts vertical winding equipment, combined assembly core mold, equipped with spray gun, and the whole winding process is controlled by computer according to program settings.
(b) Mould installation: winding up and down the support rings of the mold on the site, adding vertical support 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 tank top of the FRP storage tank 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 in accordance with the lifting specifications. The connection requirements of the tank top and the tank body are strict. The wood used for mitering is cut according to the shape of the tank top to ensure the tight connection.
3.Production of FRP storage tank body
And forming a tank liner layer structure wound two injection programs to complete.
(a) Lining forming: The inner liner is in direct contact with the storage medium, and the quality performance is directly related to the service life of the tank and the ability to prevent leakage.
(b) Tank winding: Tank winding is the guarantee of the strength of the entire tank. The winding equipment is field vertical winding equipment with a maximum winding diameter of 25m and a maximum winding height of 12in. The winding parameters are controlled by the computer to make it strong Meet design standards.
4. Manufacturing process of glass fiber reinforced plastic 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. The overlap between the felt, cloth layer and the layer should be less than 30inin. Corners should be alternately used for corner compensation. The inner lining layer is made with 3301 # resin back cover to allow small defects such as air bubbles and delamination.
5.Assembly of glass fiber reinforced plastic storage tank bottom tank body
Winding the finished can body and can bottom tank performed socket connection with a crane, seams filled with resin mortar, and then make the first press felt construction drawings and the resin sealing with the tank wall and the tank bottom is connected with the resin mortar arc, with a sealing mat layer thickness pasted 8-1Otnin: the outer wall of the tank at the tank bottom are connected, with a glass fiber wound resin impregnated yarn around the tank bottom seams week after making a fiber mat or cloth.
Finally, filling a resin mortar, resin content in the mortar according to the design operation; tank connected to the tank bottom.
6, FRP tanks lifting body
The lifting plate placed inside the tank from the lifting and fixing hole, the connecting cord 7 is lower than the small trans
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 and matched 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, 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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