Heat pump closed belt modular sludge dryer

What Is a Belt Modular Sludge Dryer?

A belt modular sludge dryer is an industrial machine designed to continuously dry dewatered sludge (e.g., from wastewater treatment) by conveying it on a perforated belt through a drying chamber. The modular structure makes installation flexible and scalable, allowing easy expansion and maintenance.

Our Modular Heat Pump Belt Sludge Dryer is a high-performance, low-temperature, fully automated drying solution designed specifically for the needs of municipal and industrial wastewater treatment applications. With its modular design and closed-loop operation, it offers unmatched energy efficiency, flexibility, and operational reliability.

Features of Belt modular sludge dryer

1. Wide temperature range,high effciency,enhaced vapor injection compressor;

2. High energy display control,high precision configuration,efficient heat recovery;

3. Modular stitching,transport,installation and removal are easier and more efficient.;

4. Environmentally friendly,energy saving,saving time;

5. The drying parameters are easy to control and wide adjustable range,drying quality is good;

6. Reasonable structure design: site survey, scientific planning, optimize investment costs, to ensure drying quality; easy installation and maintenance, smooth operation, easy to use;

7. Automatic temperature control,safe and environment protection.

This form is for reference only. We provide customized solutions based on customer's parameter requirements, providing each customer with one-to-one, more accurate parameter tables.

How It Works & Key Components

▶ Conveyor System: Sludge is evenly spread onto a belt—fed via an extruder or screw feed—ensuring a uniform layer for better heat transfer.

▶ Modular Design: The system consists of multiple sections or cells. Each module can have independent temperature and airflow control, improving adaptability and allowing scaling based on drying capacity.

▶ Drying Process: Moisture is removed via convective drying—hot air (70–180 °C) flows through or over the sludge, evaporating water content. Some systems harness waste heat for energy efficiency.

▶ Control Features: Modern dryers include adjustable belt speed, in-chamber temperature control, and even heat recovery or closed-air loops to optimize energy use.

▶ Final Handling: After drying, sludge is cooled and removed from the belt—typically delivered to storage containers or further processed.

Compared to belt filter presses or centrifuges (used for dewatering, not drying), belt dryers offer deeper drying capability but are more complex.

Common Applications

• Municipal wastewater treatment plants (biosolids drying)

• Industrial sludge (chemical, food, pulp & paper)

• Agricultural bio-sludge (manure composting)

• Biomass and organic waste processing

• Facilities seeking integration with waste heat sources

Efficient Low-Temperature Sludge Drying Solution

Our Heat Pump Closed Belt Modular Sludge Dryer is engineered for continuous, energy-efficient drying of municipal, industrial, and wastewater treatment sludge. Using advanced heat pump technology in a closed-loop system, it achieves stable moisture reduction with minimal energy consumption — while fully controlling odors and emissions. Contact us today to discuss your sludge drying requirements and receive a tailored quote. Our team will design a Heat Pump Closed Belt Modular Sludge Dryer that meets your capacity, energy efficiency, and environmental compliance needs.