Ceramic Filter Plate for Casting Ceramic Foam Filter for Liquid Filter

Ceramic Filter Plate for Casting Ceramic Foam Filter for Liquid Filter System 1

Ceramic Filter Plate for Casting Ceramic Foam Filter for Liquid Filter

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Ceramic Foam Filter
1. Introduction:

Foam Ceramic are mainly used for filtration of aluminium and aluminium alloys in foundries and cast houses . With their excellent thermal shock resistance and corrosion resistance from molten aluminum, they can effectively eliminate inclusions, reduce trapped gas and provide laminar flow, and then the filtered metal is significantly cleaner. Cleaner metal results in higher-quality castings, less scrap, and fewer inclusion defects, all of which contribute to bottom-line profit.

Ceramic Foam filters are just developed as a new type molten metal filter to decrease casting flaw in recent years. With its characteristics of light-weight, high mechanical strength, large specific surface areas, high porosity, excellent thermal shock resistance, erode resistance, high-performance,SIC Ceramic Foam filter is designed for filtering impurities from molten Iron & Alloy, nodular cast iron castings, grey iron castings and malleable castings, Bronze casting, etc.

2. Size available:

7", 9", 12", 15", 17", 20", and 23", with porosities from PPI 10 to PPI 60(PPI ie pores per inch).

Other special sizes could be produced on request.

3. Material Specifications

Material	ZrO2	SiC	Al2O3
Colour	Yellow	Grey Black	white
Pore density (ppi)	10~60	10~60	10~60
Porosity (%)	80~90	80~90	80~90
Operating temperature(°C)	1700	1500	1100
Compression Strength(MPa)	1.2	0.9	0.8
Density(g/cm3)	0.90-1.50	0.35-0.50	0.30-0.45
Thermal Shock Resistance(1100-20°C)	>6 times	>6 times	>6 times
Application	steel	iron	Non-Ferrous Alloy and Aluminium

4.1 SIC Physical Properties:

Porosity(%)	80~90%
Working Temperature	≤1500°C
Bending Strength(Mpa)	0.8
Compression Strength(Mpa)	0.9
Thermal Shock Resistance	1100°C---room temperature 6 times
Volume Density	0.4-0.5g/cm3

4.2 Alumina Physical Properties:

Working	≤1200°C
Porosity	80~90%
Compression Strength (Indoor Temperature)	≥1.0Mpa
Volume Density	≤0.5g/cm3
Thermal Shock Resistance	800°C---Indoor temperature 5 times
Application	non-ferrous and alumina alloys, high temperature gasfilter, chemical fillings and catalysis carrier

5. Pouring Rate and Filtration Capacity

1) Alumina Ceramic Foam Filters

Dimensions(mm)	Dimensions(inch)	Pouring Rate(kg/s)	Filtration Capacity(ton)
178x178x50	7x7x2	0.2-0.6	5
228x228x50	9x9x2	0.3-1.0	10
305x305x50	12x12x2	0.8-2.5	15
381x381x50	15x15x2	2.2-4.5	25
430x430x50	17x17x2	3.0-5.5	35
508x508x50	20x20x2	4.0-6.5	45
585x585x50	23x23x2	5.0-8.6	60

Casting Ceramic Foam Filter For Liquid Filter

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: Ceramic filter in vacuum pressure enough, the ceramic plate does not suck pulp, what is the reason for analysis?: The spindle speed is too fast.The speed is too high to absorb the filter cake.There are other possible reasons.

Q: Common troubles of ceramic filter: Ultrasonic cleaning, ceramic filter plate cleaning is not clean. The main reason is that the power box is faulty, the power supply is burned out, the line is aging, the energy head is burned out, the ultrasonic box is broken down, and the water level in the pulp tank is too low;

Q: Microporous ceramic filter plate cleaning: 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. (do not recommend sulphuric acid)

Q: What is the reason that the ceramic filter does not absorb mineral powder?: There may be a fault filtrate pump, diaphragm pump damage, pump mechanical seal failure, a leak, two is no output or output to the liquid, the pressure is too low, the cleaning effect is not good, the pressure is too large, will cause damage and reduce the concentration of slurry filter plate.

Q: Does the ceramic factory use hydrochloric acid?: In order to avoid the possibility of plugging, ceramic filter plates with suitable aperture range of different manufacturers can be selected.

Q: Excuse me, what's the reason that all ceramic filters do not attract ore?: After the joint cleaning, 0~2 hours of suction effect may be good, 2~4 may drop slightly, 4 hours later will become worse and worse, or even suck. This case should first check the backwash water pressure (instantaneous maximum pressure should not be less than 0.08MPa) is to meet the requirements, should also advance down (to ensure normal and ultrasonic cleaning combined with nitric acid dosage sufficient) and prolong the cleaning time.

Q: Beneficiation ceramic filter no problem, the technical parameters are normal, but filter out the concentrate water suddenly excessive, what is the reason?: The ceramic filter ceramic plate ceramic microporous pumping vacuum adsorption concentrate filtration water, the adsorption parameters according to the angle of rotation, reverse cleaning process, check whether there are loopholes in the exhaust pipe, check the ceramic plate use cycle is too long.

Q: How should the static and dynamic sealing points of the ceramic filter be leaking?: 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.

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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