US 2026/0139831 A1Published application

Compact domestic waste pyrolysis apparatus with integrated multi-chamber secondary combustion chamber

AssigneeKainos Renew Inc.

InventorsJunfeng Yang, Mingshan Yang, Chao Yang, Yue Yang, Liang Gao

Life of this patent

Estimating the term…

Loading patent…

Abstract

The present invention relates to the technical field of pyrolysis technology, and specifically discloses a compact domestic waste pyrolysis apparatus featuring an integrated multi-chamber secondary combustion chamber. The apparatus consists of a pyrolysis furnace, which incorporates both a pyrolysis chamber and a secondary combustion chamber. The upper section of the pyrolysis chamber is provided with a communication hole that connects to the secondary combustion chamber. In this apparatus, the pyrolysis chamber and the secondary combustion chamber are closely integrated. The generated pyrolytic gas directly enters the secondary combustion chamber, effectively preventing coking and significantly reducing the frequency of failures. The secondary combustion chamber absorbs radiant heat from the pyrolysis chamber, maintaining its temperature consistently above 850° C., which is conducive to the complete combustion of the pyrolytic gas and maximizes thermal energy release. This promotes the complete decomposition of dioxin precursors, reduces the likelihood of dioxin reformation, lowers the initial emission concentration of dioxins, and decreases the required dosage of adsorbent activated carbon. The highly integrated design of the secondary combustion chamber and the pyrolysis chamber optimizes space utilization and reduces the equipment's footprint, thereby lowering investment and construction costs.

Claims9

Dependent claims

A compact domestic waste pyrolysis apparatus with an integrated multi-chamber secondary combustion chamber, comprising a pyrolysis furnace (1), characterized in that:

said pyrolysis furnace (1) comprises a pyrolysis chamber (2) and a secondary combustion chamber (3), wherein an upper portion of said pyrolysis chamber (2) is provided with a communication hole connected to said secondary combustion chamber (3);
the exterior of said pyrolysis chamber (2) is provided with a first high-temperature insulation wall (4);
the top of said pyrolysis furnace (1) is provided with a feed hopper (5) and communicates with said pyrolysis chamber (2), said feed hopper (5) being equipped with a sealing assembly;
the bottom wall of said pyrolysis furnace (1) is provided with a rotating furnace grate (6) communicating with said pyrolysis chamber (2);
the slag discharge outlet (7) is provided below said rotating furnace grate (6);
a lower sidewall portion of said rotating furnace grate (6) is provided with a primary air inlet (8);
said secondary combustion chamber (3) internally defines a secondary combustion cavity;
said secondary combustion chamber (3) is further provided with a second high-temperature insulation wall (9) configured to partition said secondary combustion cavity into a plurality of sub-chambers;
said plurality of sub-chambers are connected sequentially;
and an output end of a final sub-chamber among said plurality of sub-chambers is provided with a flue gas outlet (10).

7 more elements

Dependencies are inferred from the claim text.