Integrated equipment for sludge hydrothermal carbonization and energy recovery
By designing an integrated sludge hydrothermal carbonization and energy recovery equipment, the problem of heat not being recovered and utilized during the depressurization of intermittent hydrothermal carbonization equipment is solved. This achieves effective heat recovery and uniform sludge preheating, reduces energy consumption, and is suitable for small and medium-sized sludge treatment projects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANTONG FENGLUHUI ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2026-05-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing intermittent hydrothermal carbonization equipment directly discharges high-temperature exhaust steam when depressurizing after each batch of reaction, without recovering or utilizing the heat, resulting in high energy consumption. It also suffers from problems such as high-pressure impact, mismatch between heat pulse and preheating time, and dust and sludge adhering to the walls in the exhaust steam.
An integrated device for sludge hydrothermal carbonization and energy recovery was designed, including a reaction mechanism, a buffer mechanism, a heat exchange mechanism, a preheating mechanism, and a heat storage mechanism. The device collects hot air through a buffer and heats cold water in a heat exchanger to preheat the sludge. The heat storage mechanism stores hot water for preheating. Combined with a stirring rod and a central heating pipe, the device achieves uniform heating of the sludge and avoids heat waste.
It achieves heat recovery and utilization, reduces energy consumption, improves the uniformity and efficiency of sludge preheating, and avoids wall clogging caused by direct contact of exhaust steam, making it suitable for small and medium-sized sludge treatment projects.
Smart Images
Figure CN122403722A_ABST