Equipment protecting enclosures

Patent metadata

Field	Value
Publication number	US-10176900-B2
Application number	US-201715605319-A
Country	US
Kind code	B2
Filing date	May 25, 2017
Priority date	Oct 10, 2012
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

Biomass (e.g., plant biomass, animal biomass, and municipal waste biomass) is processed to produce useful intermediates and products, such as energy, fuels, foods or materials. For example, systems and methods are described that can be used to treat feedstock materials, such as cellulosic and/or lignocellulosic materials, in a vault in which the equipment is protected from radiation and hazardous gases by equipment enclosures. The equipment enclosures may be purged with gas.

First claim

What is claimed is:

1. A method of protecting material processing equipment, the method comprising;
conveying a biomass material under an electron beam on a vibratory conveyor;
enclosing motor components in a radiation opaque equipment enclosure that does not surround the conveyor; and
purging the enclosure with a gas provided from within the enclosure;
wherein a gap is provided between the equipment enclosure and the vibratory conveyor to accommodate movement of components of the vibratory conveyor during use.

2. The method of claim 1 wherein the gas has been filtered to remove ozone.

3. The method of claim 1 wherein the gas comprises air.

4. The method of claim 1 , further comprising exchanging the gas in the equipment enclosure at an exchange rate of less than once every 10 minutes.

5. The method of claim 1 , wherein the conveyor is disposed within a vault.

6. The method of claim 5 , wherein the vault also contains irradiating equipment.

7. The method of claim 1 , wherein the method further includes moving the equipment enclosure to access the motor components.

8. The method of claim 7 , wherein the equipment enclosure is configured to be movable.

9. The method of claim 1 , wherein the equipment enclosure includes lead.

10. The method of claim 1 , wherein the exposure of the motor components to radiation is reduced by at least 10% as compared to the radiation exposure that would occur without the equipment enclosure.

11. The method of claim 10 , wherein the exposure of the motor components to ionizing radiation is reduced by at least 20% as compared to the radiation exposure that would occur without the equipment enclosure.

12. The method of claim 11 , wherein the exposure of the motor components to ionizing radiation is reduced by at least 30% as compared to the radiation exposure that would occur without the equipment enclosure.

13. The method of claim 12 , wherein the exposure of the motor components to ionizing radiation is reduced by at least 50% as compared to the radiation exposure that would occur without the equipment enclosure.

14. The method of claim 13 , wherein the exposure of the motor components to ionizing radiation is reduced by at least 70% as compared to the radiation exposure that would occur without the equipment enclosure.

15. The method of claim 1 wherein the gas is selected from the group consisting of oxygen reduced air, nitrogen, argon, helium, carbon dioxide, and mixtures thereof.

Assignees

• Xyleco Inc

Inventors

• Medoff Marshall
• Masterman Thomas Craig
• Paradis Robert

Classifications

• G21K5/10

  with provision for relative movement of beam source and object to be irradiated · CPC title

• C10L2290/28

  Cutting, disintegrating, shredding or grinding · CPC title

• C10L2290/52

  Hoppers · CPC title

• A61L2/087

  Particle radiation, e.g. electron-beam, alpha or beta radiation · CPC title

• C10B19/00

  Heating of coke ovens by electrical means · CPC title