SLUDGE DEWATERING > Filterbelt press
INTRODUCTION:
The belt filter allows the continuous dewatering of sludge, using a reduced energy consumption and a significantly higher degree of automation than that used in conventional filter presses. The production of the filter is very high, so the time required for pre-dewatering is reduced to a minimum.
The belt filter is used for digested organic sludge, paper processing, sludge from cutting and polishing, aggregate washing, etc.
During the dewatering process, the sludge is inoculated with a polymer in the sludge impulsion line and the formation of flocs begins.
The flocculated sludge is injected into a rotating pre-dewatering drum covered with a filter screen with the appropriate micronutrient. There, a natural drainage of the water phase released by flocculation occurs.
After dewatering, the sludge goes to a second stage where it must be pressed to extract a sufficient amount of water. To do this, it is loaded between two filter cloths and gradually pressed by means of variable size pressure rollers. The result is a dry cake of small thickness that is extracted continuously by means of a scratching system.
DESCRIPTION:
Our filter consists of the following components:
-
Mixer-predesydrator drum made of AISI-304 stainless steel or AISI-316 stainless steel, with polyester fabric.
-
Support structure.
-
Three polydur skids in the gravity zone, six rollers in the guide zone and five or seven rollers in the pressure zone, depending on the configuration; two rollers tensioning the fabric, two drive rollers and two continuous fabric centering rollers.
-
Continuous fabric centering device by means of two probes in contact with the fabric which, at any deflection of the fabric, drive two positioning cylinders of the centering drums through a three-way valve in the air circuit.
-
Automatic fabric tensioning system by means of a pneumatic system.
-
Pre-drier drive system with motor reducer.
-
Plastic scrapers for separating and detaching cakes.
-
Optionally, all the auxiliary elements of the process can be supplied: compressor, fabric washing pump, sludge feed pump, polymer dosing system, electrical panel and connection pipes, etc.
The FM band filter has a built-in pre-drier drum. It does not require a pre-mixing equipment device, which allows the filter cloth to be shorter and thus saves operating and maintenance costs.
Our belt filter is of open and horizontal execution, having all the supports of the clamping rollers, centering and drive rollers in view and accessible, simplifying and facilitating the maintenance work.
The washing nozzles of the fabrics used incorporate a self-cleaning device, by depressurizing the washing tube and then pressurizing it.
GENERAL DIMENSIONS:
|
CLIENTE / CUSTOMER |
CANT./QTY |
PROYECTO / PROJECT |
| ACUAESTUDIOS |
1 |
EDAR Bergondo |
| AYUNT. DE SAGUNTO |
1 |
EDAR Sagunto |
| CANAL ISABEL II |
5 |
EDAR Mostoles |
| CANAL ISABEL II |
1 |
EDAR Alcobendas |
| CDAD. AUT. ANDALUCIA |
1 |
EDAR Peñones |
| CONGELADOS CASTILL |
1 |
Depuradora |
| CONST. Y CONTRATAS |
2 |
EDAR Granada Oeste |
| DRAGADOS Y CONSTR. |
3 |
EDAR Villalba |
| DYTRAS |
1 |
Celanova |
| ESCAN |
1 |
Depuradora de Mercagranada |
| ESPINA & DELFIN |
1 |
--- |
| ESPINA OBRAS HIDRAULICAS |
1 |
EDAR San José / Uruguay |
| ESPINA OBRAS HIDRAULICAS |
1 |
EDAR en Uruguay |
| GAG |
1 |
Salvatierra Miño |
| SACEEM |
1 |
DURAZNO |
| SACEEM |
1 |
OSE Treinta y Tres |
| TECNICAS REUNIDAS |
1 |
Gajano (Repsol) |
| TESAGUA |
1 |
EDAR ARZUA |
| TEYMA |
1 |
Ciudad de Canelones |
| TEYMA |
1 |
EDAR Melo |
| TRITIO |
1 |
Artana |
| TRITIO |
1 |
EDAR Platea/ Teruel |
| VALEA UTE |
2 |
EDAR Val d'Uxo |
| VALORIZA AGUA (GRUPO SACYR) |
1 |
EMISARIO DE LA PALMA |
The dewatering of sludge is an essential process in the management of solid waste generated in water treatment. FILTRAMAS, S.A. offers different mechanized solutions to the problem according to the different possible needs.
Band screens are those equipments, installed in a channel or , which has a series of filtering surfaces in continuous movement. Its mission is to extract the suspended solids of a certain size that accompany the effluent. There are several types of band screens, depending on the characteristics of the effluent and the installation:
The objective of this equipment is to protect the WWTP or pumping well from the possible arrival of large objects capable of causing obstructions in the different units of the installation. This operation consists of passing the waste water through a screen that separates and evacuates the bulky materials dragged along. They will retain large-sized solids such as branches, leaves, paper, tree roots, plastics, wipes, rags, etc., preventing damage and blockages to pumps, valves, pipes and other elements present in subsequent treatment processes of the purification plant.
These devices allow to continue filtering while performing self-cleaning, being especially suitable for those applications where continuous filtering is an important parameter of the process. Filtramas recommends the installation of its FB or FW in-line filters according to the flow and filtration needs.
Filter sieves offer high performance in the solid-liquid separation process. Our range of equipment responds to the different possible needs for each case.
FILTRAMAS, S.A. has a wide range of solutions for the transport and compacting of the waste extracted by its machines, in a clean and discreet. The conveying and compacting systems can be with screws with final draining zone or hydraulic presses.
The conveyor-compactor screws supplied by FILTRAMAS, S.A., coupled together with its equipment, allow us to obtain a totally clean and fair-faced installation. The screw loading openings are designed for coupling to the discharge opening of the extraction equipment (bars movable grilles or screens), and the intermediate spaces are covered by a fairing.
In any water treatment or purification plant, there is a continuous need to isolate or regulate the flow of water in the channels and manholes or holes in walls (wall gates). This function is carried out by means of the placement of gates and cofferdams.
The result of our experience is the establishment of a standardization that determines a satisfactory result with a simple construction. For this reason, Filtramas has been developing the manufacture of penstocks and flashboards.
Filtramas manufactures channel hatches, wall hatches and cofferdams for different applications and uses.
The accumulation of solid waste in water treatment requires effective mechanized solutions for its extraction. FILTRAMAS, S.A. has a wide variety of equipment for the dragging of solid waste.
In the biological treatment of wastewater, a series of processes are generated based on the cultivation of bacterial microorganisms for the elimination of organic matter, nitrogen and phosphorus. It is one of the most common treatments for its simplicity and low cost.
FILTRAMAS, S.A. has a wide variety of equipment for bacterial culture applied to the treatment of urban and industrial wastewater.
The dewatering of sludge is an essential process in the management of solid waste generated in water treatment. FILTRAMAS, S.A. offers different mechanized solutions to the problem according to the different possible needs.
FILTRAMAS S.A. has a wide variety of solutions for all kinds of problems associated with the treatment and cleaning of water, mud and sand. We develop our specialisation on the basis of the experience accumulated by our professionals, constant effort and close collaboration with our clients. FILTRAMAS S.A. perfects new products, looking for economic and effective solutions. Any problem that arises in the handling of fluids is carefully analyzed in order to find an economically balanced solution.