一种高低温耦合气化装置
By using a high-low temperature coupled gasification device, the biomass gasifier is divided into a high-temperature and a low-temperature part. The gaseous small molecules and steam from the high-temperature gasifier are used to heat the low-temperature gasifier, which solves the problems of biomass resource waste and equipment blockage, and realizes the efficient utilization of biomass and clean operation of equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN CARBON IND TECH CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing biomass gasification technologies suffer from incomplete combustion at high temperatures, leading to waste of biomass resources, low effective gas content, and easy equipment blockage.
A high-low temperature coupled gasification device is adopted, which splits the biomass gasifier into a high-temperature gasifier and a low-temperature gasifier. The small molecules of gas generated by the high-temperature gasifier are cooled and purified to provide a heat source for the low-temperature gasifier. Combined with the steam generated by the radiant waste heat boiler, the low-temperature gasifier is heated to achieve full pyrolysis of biomass and clean operation of the equipment.
It improves the utilization rate of biomass resources, reduces energy consumption, prevents equipment blockage, and increases the effective component content of syngas.
Smart Images
Figure CN224513433U_ABST
Abstract
Claims
1. A high-low temperature coupled gasification device, characterized in that, It includes a high-temperature gasifier (1) and a low-temperature gasifier (2). One side of the high-temperature gasifier (1) is connected to a radiant waste heat boiler (6). A syngas extraction pipeline (7) is provided on the top of the radiant waste heat boiler (6). One side of the radiant waste heat boiler (6) is connected to the low-temperature gasifier (2). The top of the low-temperature gasifier (2) is connected to the high-temperature gasifier (1) through a tower top pipeline (9). The bottom of the low-temperature gasifier (2) is connected to the high-temperature gasifier (1) through a biomass carbon extraction pipeline (10). A condensate extraction pipeline (11) is provided on one side of the low-temperature gasifier (2).
2. The high-low temperature coupled gasification device of claim 1, wherein, The high-temperature gasifier (1) and the low-temperature gasifier (2) are respectively connected to the feed line (3), and a dryer (4) is installed on the feed line (3).
3. The high-low temperature coupled gasification device of claim 1, wherein, The bottom of the high-temperature gasifier (1) is provided with a bottom extraction pipeline (12).
4. The high-low temperature coupled gasification device of claim 1, wherein, The radiant waste heat boiler (6) has an inlet pipe (13) connected to one side of its shell.
5. The high-low temperature coupled gasification device of claim 1, wherein, The biomass carbon extraction pipeline (10) is equipped with a silo assembly.
6. The high-low temperature coupled gasification device of claim 5, wherein, The silo assembly includes a first silo (14) and a second silo (15) connected in series. The inlet of the first silo (14) is connected to the low-temperature gasifier (2), the outlet of the first silo (14) is connected to the inlet of the second silo (15), and the outlet of the second silo (15) is connected to the high-temperature gasifier (1). Control valves (16) are provided on the biomass carbon extraction pipeline (10) between the first silo (14) and the low-temperature gasifier (2), the biomass carbon extraction pipeline (10) between the first silo (14) and the second silo (15), and the biomass carbon extraction pipeline (10) between the second silo (15) and the high-temperature gasifier (1).
7. The high-low temperature coupled gasification device of claim 1, wherein, A purification and dust removal device (17) is provided between the high-temperature gasifier (1) and the radiant waste heat boiler (6).
8. The high-low temperature coupled gasification device of claim 1, wherein, The temperature of the high-temperature gasification furnace (1) is 900℃-1500℃.
9. The high-low temperature coupled gasification device of claim 1, wherein, The temperature of the low-temperature gasification furnace (2) is 400℃-600℃.
10. The high-low temperature coupled gasification device of claim 1, wherein, The pressure of the low-temperature gasifier (2) is 20 kPa to 80 kPa higher than that of the high-temperature gasifier (1).