Multi-Roller Disk Press JD
Discover the Multi-Roller Disk Press JD: Your Ultimate Sludge Dewatering Solution
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The JD Multi-Roller Disk Press stands as the perfect answer to mechanical dewatering challenges posed by wastewater sludge containing high levels of minerals and fats, as well as coarse, abrasive, and fibrous inclusions. Whether it’s from municipal treatment plants, industrial plants, agricultural operations, or food enterprises, the JD Multi-Roller Disk Press delivers reliable and efficient results.
Key Feartures of JD Multi-Roller Disk Press:
- Reliable Dewatering: JD Multi-Roller Disk Press effectively handles high-mineral-content sludge without succumbing to abrasive wear or jamming issues.
- Versatile Application: It excels in efficiently dewatering various types of sludge, including those with high concentrations of fats and oils.
- Unique design: Self-cleaning rollers design eliminates clogging problems and does not require water for flushing.
- Cost-effective: Minimal capital construction costs due to compact and enclosed design and low operating costs with significantly less energy consumption comparing to other dewatering systems.
- User-Friendly Operation: With simplicity and ease of maintenance, JD Multi-Roller Disk Press is designed for trouble-free operation.
Applications of JD Multi-Roller Disk Press:
- Dewatering of sludge from small and medium-sized municipal wastewater treatment plants with the capacity up to 27 MGD
- Food industry (dairy, meat, fish, beer, and more)
- Biogas plants
- Textile and tannery industry
- Cosmetics and pharmaceutical industries
- Semiconductor and automotive factories
- Pulp-and-paper and woodworking industries
- Pig manure
- Water treatment sludges
- Various other high-mineral-content sludge types
Dewatering efficiency of JD Multi-Roller Disk Press:
- JD Multi-Roller Disk Press efficiently dewaters different kinds of sludges with a wide range of sludge concentrations (0.5~5%).
- Cake dryness depends on sludge water release properties and can reach up to 50%.
- It’s a reliable solution for dewatering sludge with high mineral content (40-60%).
Advanced and technical solutions:
- Capable of dewatering sludge with low organic content, high abrasive particle content, fibers, fats, oils, and petroleum products.
- Reliable operation without abrasive wear and jamming, even with large debris thanks to the reverse mode.
- Sufficient spacing between upper and lower rollers enables working with sludge containing large and fibrous inclusions without clogging.
- Self-cleaning rollers eliminate clogging issues, reducing downtime for filter surface cleaning.
- Minimal energy consumption compared to other dewatering systems.
- Compact and enclosed design minimizes installation space requirements and ventilation costs.
- Low operating costs and reduced capital construction costs.
- Simplicity, reliability, and ease of operation.
- Long service life ensured by robust materials and anti-corrosive treatments.
Advanced Automation and Longevity:
- Low rollers rotation speed (up to 1.5 rpm) results in quiet and vibration-free operation.
- Main components experience minimal wear and rarely require bearing replacement.
- Simple maintenance can be performed by local personnel without specialized training.
- Easy access to key components ensures quick maintenance.
- User-friendly ergonomics, quick-release covers, and simplified drive maintenance.
- Advanced automation with various modes and algorithms, facilitating synchronization with other treatment facility equipment.
- Electrical overload and surge protection.
- Built-in sludge conditioning (flocculation) system eliminates the need for additional equipment and tanks.
Long Service Life and Corrosion Resistance:
- JD Multi-Roller Disk Press body is constructed from AISI 304 or AISI 316 stainless steel.
- Mandatory anti-corrosive treatments, including volume pickling and passivation using specialized means.
- Heavy-duty chains for efficient rotation transfer between driving and driven rollers.
- Disk material features epoxy-based wear-resistant plastic and stainless steel.
- Shafts mounting the disks are crafted from extra-strong stainless steel for durability.
Unlock the potential of your sludge dewatering process with the JD Multi-Roller Disk Press. Contact us today to explore its benefits and streamline your operations.
JD Multi-Roller Disk Press Design
JD multi-roller disk presses utilize both gravity filtration and pressure dewatering systems. The “filtering rollers” consist of alternating thin metal discs and resin discs, and are arranged in two (upper and lower) tiers. The flocculated sludge is fed between the rollers and dewatered by compression while being conveyed toward the sludge outlet by the rollers rotation. Not only is the system highly energy efficient, the discs are self-cleaning and do not clog.
Flocculation tank creates superior floccules:
- Multi-stage chemical treatment can be applied (flocculation with coagulation if required).
- Mixing speed is variable.
Well-grown sludge floccules are fed to the dewatering unit through overflow by gravity reducing the chances of damaging floccules from pumping. An operator can visually control the flocculation process and adjust it to achieve the best possible results.
Mechanical Principle and Structure of Filtering Rollers
Motors diagram
JD Multi-Roller Disk Press has from 7 to 10 gear motors – in both filtration and dewatering sections. Each motor drives two shafts. It is possible to change rotation speed ratio of these two sections.
Remarkably low energy consumption. The total nominal power of the drives of the main dewatering unit is up to 2.7 Hp.
Technical Specification of JD Multi-Roller Disk Press
| Productivity on dry solids, lbSD/h | up to 940 |
| Hydraulic capacity, gpm | up to 115 |
| Installed power, hp | 1.1- 4.4 |
| Nominal roller width, in | 10, 20, 30, 40, 60, 80 |
| Number of rollers, pcs. | 14 - 22 |
| Rollers rotation speed, rpm | 0.25 - 1.5 |
How do I choose between JD Multi-Roller Disk Press and MDQ Multi-Disk Screw Press?
a) Opt for JD Disc Press when you need to dewater sludge with a high mineral content (inorganic content up to 60%).
b) Choose the JD Disc Press when dealing with sediment containing relatively large solid, abrasive, or fibrous inclusions (such as straw, fibers, particles of animal origin, etc.), and when working with high-fat concentration sludge.
How frequently should I replace the rollers in these dehydrators?
Roller discs should be replaced as they wear out over time. Typically, critical wear of the discs occurs after 5 to 7 years of operation. The replacement process can be carried out without involving the manufacturer’s representatives, simplifying maintenance.
Do JD Multi-Roller Disk Presses require a lot of space for installation and operation?
No, these presses do not demand extensive space or high capital costs for installation and operation. They can be conveniently installed in various settings, including containerized wastewater treatment plants and mobile units, offering flexibility in accommodating different facility configurations.
