Automatic Chamber Filter-Press

Sentence

The filter presses offered by thecompany ENCE GmbH are used for filtering the industrial wastes of electroplating, pickling, and other industrial facilities at the final stage for sludge dewatering after thickening and reactant treatment.

Description

ENCE GmbH Engineering Company offers fully automated chamber filter-presses of KMP type designed for filtering of suspensions containing particulars from 10 to 1500 kg/m³ and forming sediments with high hydraulic friction.

Filter-press of KMP type has acquired some new engineering features:

Plates clamping hydraulic device;
Automatic control and monitoring system;
Straining cloth tensioning device.

Filter-presses are applied for industrial wastes filtering in galvanizing, pickling and other metallurgical productions at final stage for sediment dewatering after its concentration and reagent treatment.

Filter cloth with mechanical tensile strength based on 285 kg minimum can be applied in filter-presses of KMP type.

Legend:

K — chamber filter-press with horizontal plates
M — filter-press with mechanical pressing
R — sediment taking by means of descending cloth
25 — filtering surface area, m²
1 — unsealed with general purpose industrial version electric equipment
K — corrosion-resistant steel
1 — stainless corrosive steel

For example: KMP 25-1K-1
Manufacture and supply of all dimension-types according to DIN.

Filter-Presses technical performances

Type	KMP 2,5	KMP 5	KMP 10**	KMP 12,5	KMP 22**	KMP 25
Filtering surface area, m²	2,5	5	10	12,5	22	25
Chamber space size, m²	0,11	0,22	0,51	0,55	1,19	1,1
Pressure, MPa (kgf/cm²):
operating pressure (suspensions, washing liquid, water, air, when pressing by membrane), no more	1,6 (16)	1,6 (16)	1,6 (16)	1,6 (16)	1,6 (16)	1,6 (16)
washing liquid pressure for material regeneration, no more	0,3 (3)	0,3 (3)	0,3 (3)	0,3 (3)	0,3 (3)	0,3 (3)
oil pressure in hydraulic control system	2 (20)	2 (20)	2 (20)	2 (20)	2 (20)	2 (20)
oil pressure in hydraulic pressing system, no more	15 (150)	15 (150)	15 (150)	15 (150)	15 (150)	15 (150)
Filtered medium temperature, К (°°C)	278–353 (5–80)	278–353 (5–80)	278–353 (5–80)	278–353 (5–80)	278–353 (5–80)	278–353 (5–80)
Sediment maximum thickness, mm	35	35	45	35	45	35
Wet sediment maximum allowed load, kg/m²x h	110	110	110	110	110	110
Installed power, kW, no more	28,3	28,3	28,3	28,3	28,3	28,3
Consumed power, kW, no more	24	24	24	24	24	24
Power supply with dead-grounded neutral:
voltage, V	380	380	380	380	380	380
frequency, Hz	3–50	3–50	3–50	3–50	3–50	3–50
Dimensions
length, mm	2910	2910	3980	3980	3980	3980
width, mm	1950	1950	2350	2350	2350	2350
height, mm	2550	3300	3100	3100	4200	4200
weight*, kg	5750	6930	11700	11200	15000	15250

Notes:
* For filter-presses made of carbon steel
** Filter-presses for easy filtering suspensions

Filter-press technical description

Filter-press consists of a set of horizontal filter plates placed between thrust and pressure plates. Hydraulic clamping device with V-fixing that performs rising, sealing and lowering of filtering plates set is mounted on the thrust plate. Filter-press thrust and pressure plate are connected by tie rods. Filter cloth in the form of endless belt is stretched in a zigzag manner between the filter plates. The filter cloth is moved by cloth moving drive with driving and pressure rollers in order to discharge sediment and its regeneration. Driving roller is actuated from electric motor through V-belt transmission and gearbox. Irrigation tubes for cloth spray washing and cloth cleaning knives (scrapers) are installed in the regeneration chamber. Cloth is tensioned by tension device fixed on the cloth moving drive and thrust plate. Chains and cloth tension device fastened on them are driven by hydraulic motor.

Cloth adjustment roller is designed to eliminate any displacement of filter cloth relative to filter plates. Pressure plate, tray, regeneration chamber and cloth moving drive are mounted on a common frame. Water supply collector for diaphragm is set on one of the tie rods.

Filter plate consists of two parts: upper part — casing (of filtrate chamber) and lower part — frames (filter chambers).

The filter — press housing is designed for filtrate collection and discharge and it has a bottom, side walls and drain bottom in the form of separate inserts. The frame works as a filtration chamber where sediment is formed and dried. Between the casing and the frame is a rubber diaphragm, designed for sediment extraction (pressing) Clamping device clamps a set of plates and seals the filter chambers. When compressing filter — press plates a suspension is supplied under pressure to the bottom of each plate — the filter chamber. The liquid phase passes through the cloth and drain base and is taken away through the discharge collector from the filter — press. The solid phase, kept by the filter cloth is pre-pressed and, if provided by technology, is washed. The washing liquid enters the chambers through a feeding collector. Washing filtrate is removed from the filter-press through the discharge collector.

After washing the sediment is again pressed by rubber diaphragms, dried by compressed air and is discharged when opening the filter press. Plates hang up on special eye bars. Cloth moving drive is switched on. The sediment is discharged on the cloth from interplate area and pours into charging-bins by the both sides of filter. The cloth is pulled through the regeneration chamber, washed and the filter — press is clamped again, and the operating cycle is repeated. Duration of process steps and their sequence are determined experimentally or by results of KMP type filter operation by using of similar suspension.

Filter-pressof KMP type have three designs depending on material of the parts contacting with the operating medium: made of carbon steel is for neutral and alkaline suspensions filtering; of corrosion resistant steel is for aggressive suspensions filtering; of titanium alloy VT 1–0 is for aggressive suspensions filtering. Filter-presses of KMP type are supplied with electrical equipment of industrial and explosion proof designs with class no less than V3T3 with control system based on electrical relays or pneumatic elements (for rooms categories BI-a and BII-a), as well as based on microprocessor equipment.

ENCE GmbH Company underlines the following principal advantages of filter-presses of KMP type in comparison with their analogues:

Filter-press fast readjustment,
Filtration process time reducing,
Filtering high capacity,
Availability of conventional and microprocessor control and monitoring systems,
Perfect safety measures,
Efficient maintenance

These qualities make these filter-presses indispensables for many industries, including the coal, ore-dressing, metallurgical, chemical, machinery and energy industries.

Additional information

ENCE GmbH Engineering Company also offers a wide range of other filter devices and filter-elements, which are used by the clients in gas, chemical, metallurgical and energy industries.