Sekbor Ceramic Filter Elements for concentrate filtration

Intended use:

Filtration of concentrates
Filtration of sludge and tailings
Setup of local closed-loop water-recycling systems

Sekbor filter elements are used in ceramic disc vacuum filters manufactured in Russia, Finland and China in equipment of the following brands: CDF, VDFK, СС, TT, ТС, KS, HTG, CEC

Industries:

Mining and processing
Housing and utilities sector
Alumina production

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Description
Characteristics

Main advantages:

Continuous design improvement
Long lifetime of up to 36 months
Wide range of modifications
High strength and heat resistance
High resistance to abrasive wear
Most effective membrane coatings
High open porosity up to 45%
Maximum hydraulic throughput due to adjustability
Pore size of 1-10 μm

Principle of operation:
When the disc rotates and the filter elements are immersed in pulp, the liquid phase seeps through the filter element pores by the vacuum and is discharged into the receiver. At the same time, cake starts to form on the surface of the filter elements, while neither solids nor air penetrate through the filter element pores.

Description:

In-house manufacture, a special ceramics research center, design engineering bureau and filtration and beneficiation research center enable to develop filter plates ranging in size from 0.03 m2 to 0.82 m2, taking into account the equipment design features and process specifications of dewatered materials.

Many years of experience with major mining and processing plants enabled to engineer modified filter elements with pore sizes varying from 0.8 to 20μm on the basis of comprehensive researches, which made it possible to reduce the filtered sludge moisture content by 1-2% compared to the previously used elements and increase the capacity by up to 30%.

Efficiency:

Physical properties and specifications of filter elements

Description	UoM	Value
Open porosity	%	40-45
Pore diameter	μm	1-10
Compressive strength, min.	MPa	30.0
Structural flexural strength, min.	kN	19.0
Acid resistance, min.	%	97.0
Alkali resistance, min.	%	92.0

Marking:

Types of filter elements:

Type 1 with black filter element ends has proved to be effective at iron ore plants (Karelsky Okatysh, Stoilensky Mining and Processing Plant). Its elements feature low filter membrane resistance while filtering out fine concentrate particles.

Type 2 with gray filter element ends is used to filter suspensions with high concentrations of large size classes of up to 0.5 mm and low sludge concentrations with particle sizes of less than 0.005mm. Due to high throughput, this element type provides a specific capacity of more than 1,000kg/m2*h at sludge moisture content of 7.5 to 8.5%. The elements are recommended for apatite ore processing and gravity concentration product plants (ANOF-2, ANOF-3, ORK)

Type 3 with yellow filter element ends is used for highly abrasive concentrates ensuring filtration consistency during the warranty period due to the reinforced membrane coating.

Type 4 with red filter element ends is used for hard-to-filter pulps of non-ferrous metal concentrates with -0.005mm sludge concentrations of up to 15%, providing a thin cake on the filter element surface to enable its effective drying to a guaranteed moisture content of less than 9%.

Options:

Stainless fasteners
Filtrate discharge connections

Standard sizes of ceramic filter elements:

Plate number	Filtering area	Plate thickness	Applicability
No. 1	0.05	24	CDF-0.5
No. 2 type 24	0.25	24	СС 15...60 VDFK 15...45
No. 2 type 30	0.25	30	СС 15...60 VDFK 15...45
No. 3	0.4	30	ТС-60
No. 3	0.42	30	CDF 30...75
No. 3 (2 fittings)	0.42	30	CDF 30...75
No. 3.10	0.5	32	CDF-90 HTG 60
No. 3.09	0.5	30	HTG60
No. 4	0.67	30	CDF-140
No. 5	0.8	36	СС 144