Methods and apparatus for microwave drying of green ceramic honeycomb bodies using adjustable air flow
US12145293B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2020 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Jan 22, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2206/046
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of drying a green ceramic honeycomb body (20) comprising: moving the body (20) through a drying system (50) comprising interconnected microwave devices (60), wherein each microwave device (D1, D2, D3) comprises an entrance (62a, 62b, 62c) located at an upstream end and an exit (64a, 64b, 64c) located at a downstream end of the microwave device (D1, D2, D3), the ends defining a downstream direction (72) and an upstream direction (74) in each of the devices (D1, D2, D3); removing moisture from the body (20) by irradiating the body (20) with microwave radiation within each of the devices (D1, D2, D3); and flowing air against the outer peripheral wall (22) of the body (20) while the body (20) is located in each of the microwave devices (D1, D2, D3). The flowing is conducted such that one or more of a supply flow and an exhaust flow of air is adjusted in at least one of the devices (D1, D2, D3) such that the air flow in the system is at a predetermined magnitude substantially in the upstream (74) or downstream direction (72).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.