1, stone trough and wooden pickling trough
A slate is an old method and is seldom used. Preparation method of stone groove is to dig a pit in the ground, filling the concrete layer to form a rectangular hole; coated with a layer of asphalt concrete, then wrapped in a layer of 5mm thick plate, then build a 100-300mm thick layer of stone, with stone asphalt adhesive; then in the flags are filled in the lead.
A wooden trough made of relatively hard, dense wood. In order to strengthen the wooden trough, the long screw can be used to clamp the wood board. Sometimes in order to prevent leakage, can also wrap a layer of 5mm thick plate groove in the wood.
2 、 glass fibre reinforced plastic pickling tank
FRP tanks are usually made of steel plates and lined with glass fiber reinforced plastic. They can also be made of concrete pits and are lined with glass fiber reinforced plastic.
3 、 acid resistant concrete pickling tank
First made of ordinary reinforced concrete shell, and then hit a thickness of 50-150mm acid resistant concrete, in order to prevent leakage, it can be between the shell and lining with a layer or layer of asbestos asphalt board. Acidification can only occur on hardened surfaces. Three times with acid (40% sulfuric acid or 20% hydrochloric acid). In order to improve the compactness, acid resistance and water resistance of acid resisting cement, some modifiers, such as sugar alcohol resin and lead oxide, can be added. Packing is also add some sand, silica gel, blast furnace slag etc..
4 、 plastic plate pickling tank
The plastic plate pickling tank is usually made of rigid PVC plastic board and welded by hot air welding. In order to strengthen the strength of the plastic board, the steel plate or angle iron can be welded into frame type birdcage reinforcement or reinforced by glass fiber reinforced plastic. In addition, the soft polyvinyl chloride plastic plate can be used as the lining of the steel groove, and the lining can be pasted by the bolt fixing method, and the vinyl chloride adhesive or the polyurethane glue can be pasted.
5. Other pickling tanks
PP pickling tanks, electroplating pickling tanks, nonstandard pickling tanks, steel plastic pickling tanks, silver Cao pickling tanks, pickling bath fittings, home-made pickling tanks and so on.
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