Microwave irradiating and heating device

Patent metadata

Field	Value
Publication number	US-9737866-B2
Application number	US-201515322598-A
Country	US
Kind code	B2
Filing date	Apr 16, 2015
Priority date	Jul 29, 2014
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

Disclosed is a microwave irradiating and heating device including: a reaction furnace ( 1 ) for containing a sample material ( 50 ) to be irradiated with microwave and to be heated; a polarization grid ( 2 ) provided for the reaction furnace ( 1 ); a microwave irradiating source ( 3 ) for emitting a linearly polarized microwave, the microwave irradiating source ( 3 ) being disposed outside the reaction furnace ( 1 ); and a reflector ( 4 ) for reflecting the microwave emitted from the microwave irradiating source ( 3 ) toward the reaction furnace ( 1 ) through the polarization grid ( 2 ), the reflector ( 4 ) being disposed above the reaction furnace ( 1 ), wherein the microwave irradiating source ( 3 ) is arranged in such a way that the polarization direction of the reflected microwave which is made incident upon the polarization grid ( 2 ) is perpendicular to an orientation of the polarization grid ( 2 ).

First claim

The invention claimed is:

1. A microwave irradiating and heating device comprising:
a reaction furnace for containing a sample material to be irradiated with microwave and to be heated;
a polarization grid provided for the reaction furnace;
a microwave irradiating source for emitting a linearly polarized microwave, the microwave irradiating source being disposed outside the reaction furnace; and
a reflector for reflecting the microwave emitted from the microwave irradiating source toward the reaction furnace through the polarization grid, the reflector being disposed above the reaction furnace,
wherein the microwave irradiating source is arranged in such a way that a polarization direction of the reflected microwave which is made incident upon the polarization grid is perpendicular to an orientation of the polarization grid.

2. The microwave irradiating and heating device according to claim 1 , further comprising a rugged portion for reflecting irregularly the microwave, the rugged portion being provided on an inside wall of the reaction furnace.

3. The microwave irradiating and heating device according to claim 1 , further comprising a heater disposed outside the reaction furnace for heating the reaction furnace.

4. The microwave irradiating and heating device according to claim 1 , wherein the microwave irradiating source is an active phased array antenna that can adjust freely an amplitude and phase of the microwave emitted therefrom.

5. A microwave irradiating and heating device comprising:
a reaction furnace for containing a sample material to be irradiated with microwave and to be heated;
a polarization grid provided for the reaction furnace;
a plurality of microwave irradiating sources for emitting a linearly polarized microwave, the microwave irradiating source being disposed outside the reaction furnace; and
a plurality of reflectors, each of the plurality of reflectors being provided correspondingly to each of the plurality of microwave irradiating sources, being disposed above the reaction furnace, and being for reflecting the microwave emitted from the corresponding microwave irradiating source toward the reaction furnace through the polarization grid,
wherein each of the microwave irradiating sources is arranged in such a way that a polarization direction of the reflected microwave which is made incident upon the polarization grid is perpendicular to an orientation of the polarization grid.

6. The microwave irradiating and heating device according to claim 5 , further comprising a rugged portion for reflecting irregularly the microwave, the rugged portion being provided on an inside wall of the reaction furnace.

7. The microwave irradiating and heating device according to claim 5 , further comprising a heater disposed outside the reaction furnace for heating the reaction furnace.

8. The microwave irradiating and heating device according to claim 5 , wherein the microwave irradiating source is an active phased array antenna that can adjust freely an amplitude and phase of the microwave emitted therefrom.

Assignees

• Mitsubishi Electric Corp

Inventors

• Takatani Yuki
• Takikawa Michio
• Inasawa Yoshio
• Sasaki Takuro
• Honma Yukihiro

Classifications

• B01J19/126 Primary

  Microwaves · CPC title

• B01J2219/1293

  Single source · CPC title

• H05B6/70

  Feed lines · CPC title

• H05B6/806

  for laboratory use · CPC title

• F27D11/12

  with electromagnetic fields acting directly on the material being heated · CPC title