Horizontal Press Filter (HPF)

Intended use: Filtration (dewatering) of highly dispersed suspensions (pulps) of the following concentrates: copper, cobalt, nickel, lead, tin, magnetite, apatite, talc and other ores, as well as their concentration tailings.

Industries:

Mining
Metallurgical
Chemical and petrochemical
Food
Housing and utilities sector

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Description
Characteristics

Principle of operation:

The pulp is injected into the filter press under high pressure into the cavities (chambers) formed between adjacent vertical plates.

During the filtration cycle, the plates are heavily pressed against each other using special hydraulic pushers to ensure leak-tightness in respect of the internal pressure acting from the pulp side.

The pressure from the pulp side acts until the filtrate passes through the filter plates and comes out in such an amount that ensures the required dewatering degree.

Applications:

Non-ferrous metal industry: dewatering of non-ferrous metal ore concentrate pulps; fine purification of electrolyte solutions; steelmaking industry wastewater dewatering;
Ferrous metal industry: dewatering of iron ore concentrates; dewatering of neutralized effluents of etching workshops; dewatering of wet flue gas treatment sludge of metallurgical furnaces;
Chemical industry: filtration and thorough washing of sediments of chemical plants; fine cleaning of solvents and spinning solutions in man-made fiber industry (nitron, viscose, PVC, etc.);
Coal industry: filtration of coal suspensions and untreated coal sludge;
Sugar industry: filtration of juice of the first saturation; filtration of condensed juice of the first saturation in beet and raw sugar processing;
Juice, beverage, wine industry: fine purification of juices, wines and beer; dewatering of wine making yeast deposits;
Industrial wastewater treatment: dewatering of thick slurries of wastewater treatment facilities;
Public utilities: dewatering of household wastewater; dewatering of sludge of water treatment facilities.

Main advantages compared to competitors:

Simple design and operating reliability
The basic scope of supply includes cloth shaking and washing units.

Efficiency:

Duration of the main horizontal filter press operations depends on the filtered sludge properties and filtration mode.

The residual moisture content and filtrate purity depends on the correct selection of the filter membrane and filtration modes.

Options:

Cake compression with a membrane to reduce its residual moisture content;
Cake washing;
Cake blowing to reduce its residual moisture content.
After that, the plates are pulled apart releasing the dewatered pulp, or “cake”.

The above described process is a batch process that is comprised of the following sequence of steps:

Closing of filter press chambers;
Chamber filling with cake;
Optional: cake pressing by a membrane/cake washing/cake air blowing;
Plate block opening and dewatered sludge (cake) discharge;
Filter membrane regeneration

Models and specifications:

Specifications	Total filtering area, m2	Number of plates 2*2, ea.
HPF-400/2000	400	72
HPF-300/2000	300	54
HPF-200/2000	200	34

Specifications	Total filtering area, m2	Number of plates 1.5*1.5, ea.
HPF-200/1500	200	72
HPF-150/1500	150	54
HPF-100/1500	100	34

Specifications	Total filtering area, m2	Number of plates 1.2*1.2, ea.
HPF-100/1200	100	54
HPF-60/1200	60	34
HPF-40/1200	40	22

Specification and marking:

HPF-400, Horizontal press filter with a filtering area of 400 m2

Scope of supply:

Filter press

Filter press frame
Drip tray
Plate movement unit
Cloth washing unit
Plate shaking unit

Hydraulic station
Set of filter plates
Set of filter cloths