ceramic foam for filtration

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Silicon Carbide Ceramic Foam Filter

Silicon Carbide Ceramic Foam filter is justdeveloped as a new type molten metal filter to decrease casting flaw in recentyears. With its characteristics of light-weight, high mechanical strength,large specific surface areas, high porosity, excellent thermal shock resistance,erode resistance, high-performance, siliconcarbide ceramic foam filter is designedfor filtering impurities from molten Iron & Alloy, nodular cast ironcastings, grey iron castings and malleable castings, etc.

CNBM silicon carbide ceramic foamfilter ischaracterized by high porosity and mechanochemical stability and excellentresistance to thermal shock and corrosion from moltenmetal. It can effectively remove inclusions, reducetrapped gas and provide laminar flow when iron molten metalfiltrated, ceramic foam filter is machined to tight dimensionaltolerance during production, this combination of physical properties andprecise tolerance make them first choice for iron molten metal filtration.

TechnicalData of Silicon carbide ceramicfoam filter

BoreDensity(PPi) 10-40

Porosity(%) 80-90

Highestworking temperature (°C) 1500

BendingStrength (Mpa) 0.8

CompressionStrength(Mpa) 0.9

Thermal ShockResistance (times/1100°C) 6

DirectionsFor Use silicon carbide ceramic foamfilter

a) Dimensions Available:

Square shape:30-600mm

Round shape:φ40-φ300mm

Thicknessesfrom 10-50mm.

PPI:10P,15P,20P,25P,30P,40P

Ductile ironcastings use 10PPI, grey iron castings and tenacity iron casting use10PPPI,15PPI or 20PPI.

b)Filterable Melt Metal Weight Of Grey And Ductile Iron (10PPI):

Dimension	Ductile Iron (≤ kg)	Grey Iron (≤ kg)	metal volume of pouring (kg/sec.)
Dimension	Ductile Iron (≤ kg)	Grey Iron (≤ kg)	Ductile Iron	Grey Iron
40×40×22	30	65	3	4
50×50×22	55	100	4	6
75×50×22	75	150	6	9
75×75×22	100	220	9	14
100×50×22	100	200	8	12
100×100×22	210	420	16	25
150×150×22	450	900	36	50

Weclome your enquiry about silicon carbide ceramic foam filter at any time. We are willing to supplyyou superior filters in most competitive price with professional service.

Q:What are the causes of the powder moisture in the ceramic filter?: The main speed of the ceramic filter is too fast.The vacuum of ceramic filter is not enough.The cleaning of ceramic filter has not met the requirement.The ceramic filter plate has a near life and a serious blockage.The selection of ceramic filter plate is different.Too much residual of ceramic scraper after discharge.

Q:Ceramic filter cleaning, sulfuric acid cleaning: Can be washed with chromic acid lotion. The effect is better

Q:What are the functions of honeycomb ceramic filters?: High quality and high density straight hole mesh, the product has high heat resistance and impact resistance properties of cast high fever temperature, design straight hole to guarantee the balance between strength and flow, effectively remove impurities and slag particles, the mechanical properties of casting, the surface quality and the qualified rate of products is greatly improved.

Q:Ceramic filter suddenly do not smoke, a little later on their own good, what reason?: How old the general ceramic filter suction main reason mud cake thickness is not much of a ceramic filter plate is different, because the ceramic filter backwash water, vacuum suction and nitrate are through the distribution valve, are often the same boat". See your description, you do not know the 5 line is about "5 disc or sideways 5 rows of ceramic plates, that is completely not suction or suction effect

Q:Is the filter plate of the ceramic filter afraid of freezing?: The filter plate of ceramic filter is afraid of frost and should be protected.

Q:What are the poor filtration effects of vacuum disc filters?: The concentration can change the properties of the suspension, because the viscosity is no longer constant when the concentration of the suspension reaches a certain value, and belongs to the properties of non Newtonian fluid. For the suspension of fine particles, the filter cake resistance of low concentration slurry is higher than that of high concentration slurry, so the filter performance can be improved by increasing concentration. If the concentrate concentration is high and the general treatment capacity is high, the running overflow can be used to increase the concentrate content. The concentrate concentration is too high to influence the agitation, and the high productivity can be achieved by adjusting the overflow position.

Q:What happens when the pressure on the filter plate is uneven during backwashing?: The working process of ceramic filter is: suction - drying - unloading - backwash - suction - drying - unloading - backwash...... In circulation, suction, the drying process is to make the slurry liquid by vacuum suction and capillary effect (usually water) through the filter media from the left, the filter cake on the filter medium (the two processes like device, through the pump) scraper discharge, discharge will complete a ceramic filter in the absorption cycle, slurry, drying process, some fine particles may enter the filter medium or stacked on the surface (a lot of pipeline internal filtration medium ceramic filter plate), these small particles will cause blockage of filter media lose permeability so that the filtering effect of variation, in order to reduce the possibility of blockage, ceramic filter will enter the backwash (this process is like a water jet device). Ceramic filter backwash is through the pressure of water, these small particles plug discharge ceramic filter board.

Q:How many degrees does the ceramic filter melt?: Alumina made from tabular corundum can be used over 1800 degrees!SiC if there is atmosphere, protection will be higher, there is no atmosphere protection, because the existence of oxidation, generally not more than 1600.Corundum, mullite, 1750 degrees small meaning.

Q:Ceramic filter ceramic plate blockage, productivity reduction, how to clean, to achieve the best effect cleaning problems: Equipment comes with cleaning:Ceramic filter comes with a combined cleaning system, usually to ensure the normal backwash water pressure, combined cleaning (nitric acid + ultrasonic + backwash) time is sufficient, sufficient amount of nitric acid.

Q:What are the reasons for the program alarm of ceramic filter?: If that is the ceramic filter tank body of the slurry concentration is diluted, has nothing to do with the ceramic filter itself, can think of ways to enter the ceramic filter tank before the slurry concentration increased, thereby improving the dewatering efficiency of ceramic filter.

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