Question 1

Filter press

Accepted Answer

The filter press is built with a robust steel frame and is equipped with all the components required to ensure efficient and reliable operation:Hydraulic power unit for operating the cylinder that closes the filter plate pack.Electrical control panel with PLC logic for the automatic management of the entire filtration process.Polypropylene plates complete with filter cloths and backing cloths, selected according to the characteristics of the sludge to be treated. Under normal operating conditions and with proper maintenance, the filter cloths ensure an average service life of more than 1,500 operating cycles.The time required for filter cake formation is automatically monitored by dedicated devices and varies according to the characteristics of the material being treated. In particular, as the percentage of dry solids in the incoming sludge increases, the time required for cake formation decreases.The filter press normally achieves a dry solids content of between 70% and 90%, ensuring high dewatering performance.Routine maintenance requirements are extremely limited and mainly consist of periodically washing the filter cloths with medium- or high-pressure water jets. This operation helps preserve the drainage capacity of the cloths over time and maintain consistent system performance.Thanks to its simple and functional design, extraordinary maintenance operations are also quick and easy to carry out. The robust construction and high quality of the materials used ensure a long service life, while the modular design allows components to be replaced quickly and easily, minimizing machine downtime.ModelPlate Dimensions (mm)Number of PlatesPlate Thickness / Cake Volume / Cycle Volume (mm – l – l/cycle)Plate Thickness / Cake Volume / Cycle Volume (mm – l – l/cycle)Plate Thickness / Cake Volume / Cycle Volume (mm – l – l/cycle)PRX-500/5500×500525 &#8211; 4 &#8211; 1632 &#8211; 5 &#8211; 2240 &#8211; 6 &#8211; 25PRX-500/10500×5001025 &#8211; 4 &#8211; 3732 &#8211; 5 &#8211; 4940 &#8211; 6 &#8211; 56PRX-630/8630×630825 &#8211; 7 &#8211; 4932 &#8211; 9 &#8211; 6540 &#8211; 11 &#8211; 81PRX-630/10630×6301025 &#8211; 7 &#8211; 6332 &#8211; 9 &#8211; 8340 &#8211; 11 &#8211; 99PRX-630/12630×6301225 &#8211; 7 &#8211; 7832 &#8211; 9 &#8211; 10240 &#8211; 11 &#8211; 128PRX-630/16630×6301625 &#8211; 7 &#8211; 10632 &#8211; 9 &#8211; 13940 &#8211; 11 &#8211; 174PRX-630/20630×6302025 &#8211; 7 &#8211; 13532 &#8211; 9 &#8211; 17740 &#8211; 11 &#8211; 220PRX-800/15800×8001525 &#8211; 12 &#8211; 16832 &#8211; 15 &#8211; 21840 &#8211; 19 &#8211; 271PRX-800/20800×8002025 &#8211; 12 &#8211; 22832 &#8211; 15 &#8211; 29640 &#8211; 19 &#8211; 369PRX-800/30800×8003025 &#8211; 12 &#8211; 34832 &#8211; 15 &#8211; 45240 &#8211; 19 &#8211; 562PRX-1000/151000×10001525 &#8211; 18 &#8211; 25832 &#8211; 23 &#8211; 33340 &#8211; 30 &#8211; 424PRX-1000/201000×10002025 &#8211; 18 &#8211; 35032 &#8211; 23 &#8211; 45240 &#8211; 30 &#8211; 576PRX-1000/301000×10003025 &#8211; 18 &#8211; 53432 &#8211; 23 &#8211; 69040 &#8211; 30 &#8211; 879PRX-1300/301300×13003025 &#8211; 31 &#8211; 91432 &#8211; 35 &#8211; 311540 &#8211; 44 &#8211; 3943PRX-1300/601300×13006025 &#8211; 31 &#8211; 185932 &#8211; 35 &#8211; 346540 &#8211; 44 &#8211; 4386PRX-1300/801300×13008025 &#8211; 31 &#8211; 248932 &#8211; 35 &#8211; 381540 &#8211; 44 &#8211; 4829PRX-1300/1001300×130010025 &#8211; 31 &#8211; 311932 &#8211; 35 &#8211; 416540 &#8211; 44 &#8211; 5272PRX-1500/301500×15003025 &#8211; 42 &#8211; 124132 &#8211; 55 &#8211; 160440 &#8211; 69 &#8211; 2027PRX-1500/801500×15008025 &#8211; 42 &#8211; 338132 &#8211; 55 &#8211; 436940 &#8211; 69 &#8211; 5522PRX-1500/901500×15009025 &#8211; 42 &#8211; 380932 &#8211; 55 &#8211; 492240 &#8211; 69 &#8211; 6221PRX-1500/1001500×150010025 &#8211; 42 &#8211; 423732 &#8211; 55 &#8211; 547540 &#8211; 69 &#8211; 6920PRX-1500/1101500×150011025 &#8211; 42 &#8211; 466532 &#8211; 55 &#8211; 602840 &#8211; 69 &#8211; 7619PRX-1500/1201500×150012025 &#8211; 42 &#8211; 509332 &#8211; 55 &#8211; 658140 &#8211; 69 &#8211; 8318PRX-1500/1301500×150013025 &#8211; 42 &#8211; 552132 &#8211; 55 &#8211; 713440 &#8211; 69 &#8211; 9017PRX-1500/1501500×150015025 &#8211; 42 &#8211; 637732 &#8211; 55 &#8211; 824040 &#8211; 69 &#8211; 10415

Question 2

Plunger pump

Accepted Answer

Technical specificationsModel: Carnera Oleodinamica 2C 100–400 Pump Pump type: Reciprocating plunger pump Number of plungers: 2 Weight: 700 kg Rated power: 9.2 kW Maximum particle size: 10 mm Maximum flow rate: 8 m³/h Maximum filtration pressure: 30 bar Displacement: 6,000 ccAvailable accessoriesDigital pressure sensor : the device provides a 4–20 mA signal to be sent to a PLC for controlling the pump delivery.Hydraulic stabilizer : it ensures a smooth discharge flow, eliminating fluctuations.

Question 3

PRX-COMPACT 400/800

Accepted Answer

Compact system for the recovery and treatment of process water in the marble, granite and natural stone industries.Available in two standard models, it handles flow rates of up to 800 l/min and can be installed either indoors or outdoors thanks to its compact footprint.Fully automatic PLC control eliminates the need for a dedicated operator and simplifies daily operations.AdvantagesMaximum ease of operation.Quick installation, with no foundations required.No complex connections between equipment.Commissioning in just one day.Easy to relocate and reposition.Reduced installation and operating costs.ModelTreatment Capacity (l/min)Clarifier Diameter (mm)Filter Press ModelPlate Thickness – Cake Volume – Total Cycle Volume (mm – l – l/cycle)PRX-COMPACT 4004001700PRX-500/532 &#8211; 5,5 &#8211; 22PRX-COMPACT 8008002200PRX-500/1032 &#8211; 5,5 &#8211; 49,5

Question 4

PRX-COMPACT QUARRY

Accepted Answer

Designed specifically for the treatment of process water in quarries, the PRX-COMPACT QUARRY ALL-IN-ONE system combines compact design, operational autonomy and maximum ease of relocation.Developed from the experience gained with the PRX-COMPACT 800, already successfully installed in numerous production facilities, it has been specifically engineered to meet the operational requirements of quarries, where the ability to move the system quickly is a key advantage.Thanks to its compact dimensions (2.3 x 2.3 m, height 4 m), the system can be easily relocated, including when new quarry faces are opened, without requiring prior emptying.The “All-In-One” concept identifies a fully integrated system: only an electrical power supply is required for operation. The compressor, sludge feed pump, collection tanks and water transfer pumps are all incorporated into the structure, ensuring rapid installation and ease of operation.

Question 5

RAB – Concrete mixer wash water recovery

Accepted Answer

The RAB system is designed for the treatment and recovery of concrete mixer wash water, which typically contains cement residues, sand, aggregates and suspended solids.The process includes an initial separation stage for the coarser particles using a screw separator, followed by sludge dewatering through a filter press, which produces a solid cake that is easy to handle. The filtered water is recovered and returned to the production cycle, reducing water consumption and operating costs.The RAB system optimizes material recovery, reduces waste generation and ensures effective management of process wastewater in compliance with environmental regulations.

Sludge dewatering

Filter press

Plunger pump

PRX-COMPACT 400/800

PRX-COMPACT QUARRY

RAB – Concrete mixer wash water recovery

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