Zirconia Ceramic Filter Plate for Steel Casting

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Application:For the filtration of molten steel and alloy,large scale iron casting

Product standard:China national GB/T 25139-2010

Zirconia ceramic foam filters are determined for filtering of steel and steel alloys up to the temperature of 1700 °C.
Filters are recommended especially for high quality grades of alloys.

-Drop turbulent of molten steel and alloy

-Improve accepted rate of steel casting

-Reduce foreign matter of steel casting

-Drop twice oxide flaw

-Reduce second-face flaw after machine process

PHYSICAL PROPERTY:

Main material:ZrO2

Applied Temperature:≤1700℃

Color:Yellow

Hole density (PPI):10/20PPI(PPI=pores per inch)

Porosity(%):80-87

Bending strength（Mpa）:≥1.0

Compressive Strength(MPa):≥1.75

Bulk Density(g/cm3):0.7-0.85

DIMENSIONS:

Length*width*height=(40-100)*(40-100)*(20-35)mm

With round,square and rectangle shape.

Size tolerance:±1mm

Pore size: 10/20PPI

PPI tolerance:±2PPI

CHEMICAL COMPOSITION:

Al2O3 MgOSiO2 Fe2O3 ZrO2

≤1.8% ≥3.0% ≤0.5% ≤0.1% ≥94.00%

APPEARANCE REQUIREMENTS:

-No cracking allowed across the full length of the edge

-Any fine cracks within the filter matrix may not be through-going

-Filters should be free from loose debris

Q: What filter material are placed in the aquarium filter?: Generally let off the filter cotton and ceramic rings, there are biochemical balls, coral bone, stone, activated carbon and so onConditional: filter cotton, ceramic ring, biochemical ball, coral bone, stone, activated carbon

Q: The ceramic filter plate is broken. What will happen to the vacuum pump?: At this time, take the filtrate (this is not the first water slurry) will pollute the ceramic filter pipe, friction ring, filtrate pump, may damage the vacuum system, remaining in the pipeline in the pulp will recoil pressure under the action of pollution caused by the other ceramic plates, ceramic plates blocked him. Once the ceramic plate is broken (depending on the severity), it will make the vacuum distortion, resulting in ceramic filter suction effect worse or even no suction!

Q: How many degrees does the ceramic filter melt?: You should say clearly what ceramic you useHowever, as a melting furnace or filter medium, alumina products are the most versatile, but also silicon carbide, corundum, mullite, spinel and so on. They use very high temperatures.

Q: What is the reason that ceramic filter does not absorb mineral powder?: There may be a failure of the filtrate pump, the diaphragm of the pump is damaged, and the mechanical seal of the pump is invalid

Q: Ceramic filter ceramic plate blockage, productivity reduction, how to clean, to achieve the best effect cleaning problems: Oxalic acid immersion:For the use of a long time, the method 1, the effect is still no significant improvement, that is how to plug the ceramic filter plate regeneration? The ceramic filter plate with uneven or non sucking slurry can be removed, and oxalic acid or other acid liquid with certain concentration and certain temperature can be taken together to dredge the microporous of the ceramic filter plate.

Q: The vacuum of ceramic filter is not enough: Maybe the vacuum meter is broken. It doesn't show or show the data is different from the actual data.It could be the source of the vacuum, the vacuum pump failure.Pipeline leakage: vacuum system connecting pipes (metal pipes or rubber pipes) corrosion, aging and water leakage.Distributor head leakage: wear or poor sealing.Leakage of ceramic plate: rupture of ceramic plate.Other reasons.

Q: Ceramic filter suddenly do not smoke, a little later on their own good, what reason?: The size of ceramic filter is generally on both sides of the vacuum tank, such as 50 square meters with 5 square meters of ceramic filter / ring ceramic filter plate combination (possible), there are 10 discs, the ceramic plate left a vacuum tank on the left of the 5 disc for filtration, vacuum filtration tank for the ceramic plate on the right right of the 5 disc. If a vacuum system temporarily fails, it may cause poor suction, no suction, and a normal operation at the other end.

Q: What is the reason that the whole ceramic filter does not attract ore?: Vacuum system failure, no vacuum or vacuum can not meet the requirements. Should check the vacuum pump and vacuum piping, distribution head, ceramic plate, such as failure or leakage.Whether the ore conditions are changed, such as pulp type, mud content, fineness, concentration, etc..

Q: What is the backwashing pressure of the ceramic filter?: It should be said that the ceramic filter backwash, usually with a certain pressure of clean water to backwash.

Q: What about the leakage of the ceramic filter static and dynamic sealing points?: When the main shaft is rotated, the filter cake is adsorbed on the surface of the ceramic filter plate and dehydrated by the vacuum generated by the vacuum pump.

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