A: cast stone product introduction

The cast stone is a natural rocks such as basalt, diabase, or industrial waste residue as raw material, adding some additives such as angle head rock, a non-metallic dolomite, fluorite crystallization agent such as chromium ore, titanium magnesium ore by melting, casting, crystallization, annealing process as the corrosion resistant material. Cast stone products are board, brick, and various special-shaped material, these various specifications sheet, pipe, special-shaped object called cast stone products.

Forming process of cast stone are casting molding, sintering, thermal direct casting molding and other three categories. At present, cast stone products has been widely used in building materials, chemical industry, metallurgy, mines and other industrial sectors. In some parts of the cast stone many equipment is steel, iron, lead, rubber, wood and the ideal substitute materials, with the general metal does not have high wear resistance, alkali corrosion properties of acid, and can prolong the cycle of equipment, reduce the repair time, improve production efficiency, reduce product cost and other advantages. Cast stone application in anti-corrosion engineering education early, has decades of history. Cast stone has a compact structure, low water absorption rate, high compressive strength, wearability feature. In addition to above 30 ℃ hot phosphoric acid, hydrofluoric acid and alkali solution, acid, organic acid, alkali, salt, water and organic solvent had good corrosion resistance to almost all inorganic, cast stone is a brittle material, has high hardness, cast stone is brittle, not easy to bear weight. Impact.

The content of SiO2 cast stone products is not high, but because it is through high temperature melting, crystallization to form a layer of protective film, finally make the chemical corrosion medium tend to zero, which is the main cause of cast stone can be highly acid.

Two: the cast stone types

The cast stone plate transfigure, general special, special shaped three categories. General form plate, rectangular plate with trapezoidal plate, hexagonal plates, fan-shaped plate, circular plate; PU special-shaped plate is arc-shaped plate, chute panels, ash ditch straight ditch panel; specific plate: hyperbolic panel, panel, cone sieve grate cast stone and ash trench curved channel, reducing, confluence, two forks, three fork plate etc.. Equipment lining cast stone plate are included in the above categories, products.

Three: the use of range of cast stone

1, the power generation industry: coal unloading chute, hopper, storage bunker, dry coal gate, dumper, bailing water treatment residue machine, etc..

2, the chemical industry: corrosion protection ground, pump foundation etc..

3, the coal industry: gangue warehouse, medium barrel, scraper conveyor, bucket elevator, chute, undersize hopper and wear resistant lining board.

4, iron and steel industry: the blast furnace material hopper, hopper, feeder, sinter ball making machine etc..