Coal deactivation treatment device

Patent metadata

Field	Value
Publication number	US-9617491-B2
Application number	US-201214359485-A
Country	US
Kind code	B2
Filing date	Dec 21, 2012
Priority date	Jan 6, 2012
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A coal deactivation treatment device for deactivating of coal by means of a treatment gas that is a mixture of air and nitrogen gas is provided with, among other things: a treatment column inside of which coal flows from the top to the bottom; treatment gas feed means, and the like, for feeding treatment gas to the inside of the treatment column; humidifying heaters for heating and humidifying the treatment gas such that the treatment gas fed to the inside of the treatment column can maintain a relative humidity of 35% or greater, even at 95° C.; a temperature sensor and a control device for adjusting the temperature inside the treatment column such that the inside of the treatment column is maintained at a relative humidity of 35% or greater and a temperature of 95° C. or lower.

First claim

The invention claimed is:

1. A coal deactivation processing apparatus configured to deactivate coal with a processing gas containing oxygen, comprising:
an apparatus main body in which the coal flows from one side to another side;
processing gas feeding means for feeding the processing gas into the apparatus main body;
processing gas humidifying heating means for heating and humidifying the processing gas to be fed into the apparatus main body in such a way that a relative humidity of the processing gas is maintainable to be 35% or more even when a temperature of the processing gas is 95° C.; and
apparatus main body internal-environment adjusting means for adjusting a temperature inside the apparatus main body in such a way that the relative humidity inside the apparatus main body is 35% or more and the temperature inside the apparatus main body is 95° C. or less.

2. The coal deactivation processing apparatus according to claim 1 , wherein in the apparatus main body internal-environment adjusting means includes:
apparatus main body internal-temperature measuring means for measuring the temperature inside the apparatus main body;
processing gas oxygen concentration adjusting means for adjusting an oxygen concentration of the processing gas to be fed into the apparatus main body; and
control means for controlling the processing gas oxygen concentration adjusting means on the basis of information from the apparatus main body internal-temperature measuring means.

3. The coal deactivation processing apparatus according to claim 2 , wherein
the processing gas feeding means includes: one-side feeding means for feeding the processing gas into the one side of the apparatus main body; and other-side feeding means for feeding the processing gas into the other side of the apparatus main body,
the processing gas humidifying heating means includes: one-side humidifying heating means for heating and humidifying the processing gas to be fed into the one side of the apparatus main body in such a way that the relative humidity of the processing gas is maintainable to be 35% or more even when the temperature of the processing gas is 95° C.; and other-side humidifying heating means for heating and humidifying the processing gas to be fed into the other side of the apparatus main body in such a way that the relative humidity of the processing gas is maintainable to be 35% or more even when the temperature of the processing gas is 95° C.,
the apparatus main body internal-temperature measuring means includes one-side temperature measuring means for measuring a temperature inside the apparatus main body on the one side,
the processing gas oxygen concentration adjusting means includes one-side oxygen concentration adjusting means for adjusting the oxygen concentration of the processing gas to be fed into the one side of the apparatus main body, and
the control means controls the one-side oxygen concentration adjusting means on the basis of information from the one-side temperature measuring means.

4. The coal deactivation processing apparatus according to claim 1 , wherein the apparatus main body internal-environment adjusting means includes:
apparatus main body internal-temperature measuring means for measuring the temperature inside the apparatus main body;
processing gas flow-rate adjusting means for adjusting a flow rate of the processing gas to be fed into the apparatus main body; and
control means for controlling the processing gas flow-rate adjusting means on the basis of information from the apparatus main body internal-temperature measuring means.

5. The coal deactivation processing apparatus according to claim 4 , wherein
the processing gas feeding means includes: one-side feeding means for feeding the processing gas into the one side of the apparatus main body; and other-side feeding means for feeding the processing gas into the other side of the apparatus main body,
the processing gas humidifying heating means includes: one-side humidifying heating means for heating and humidifying the processing gas to be fed into the one side of the apparatus main body in such a way that the relative humidity of the processing gas is maintainable to be 35% or more even when the temperature of the processing gas is 95° C.; and other-side humidifying heating means for heating and humidifying the processing gas to be fed into the other side of the apparatus main body in such a way that the relative humidity of the processing gas is maintainable to be 35% or more even when the temperature of the processing gas is 95° C.,
the apparatus main body internal-temperature measuring means includes one-side temperature measuring means for measuring a temperature inside the apparatus main body on the one side,
the processing gas flow-rate adjusting means includes one-side gas flow-rate adjusting means for adjusting the flow-rate of the processing gas to be fed into the one side of the apparatus main body, and
the control means controls the one-side gas flow-rate adjusting means on the basis of information from the one-side temperature measuring means.

6. The coal deactivation processing apparatus according to claim 1 , wherein the apparatus main body internal-environment adjusting means includes:
apparatus main body internal-temperature measuring means for measuring the temperature inside the apparatus main body;
cooling water flow means for causing cooling water to flow inside the apparatus main body; and
control means for controlling the cooling water flow means on the basis of information from the apparatus main body internal-temperature measuring means.

7. The coal deactivation processing apparatus according to claim 6 , wherein
the processing gas feeding means includes: one-side feeding means for feeding the processing gas into the one side of the apparatus main body; and other-side feeding means for feeding the processing gas into the other side of the apparatus main body,
the processing gas humidifying heating means includes: one-side humidifying heating means for heating and humidifying the processing gas to be fed into the one side of the apparatus main body in such a way that the relative humidity of the processing gas is maintainable to be 35% or more even when the temperature of the processing gas is 95° C.; and other-side humidifying heating means for heating and humidifying the processing gas to be fed into the other side of the apparatus main body in such a way that the relative humidity of the processing gas is maintainable to be 35% or more even when the temperature of the processing gas is 95° C.,
the apparatus main body internal-temperature measuring means includes one-side temperature measuring means for measuring a temperature inside the apparatus main body on the one side,
the cooling water flow means includes one-side flow means for causing the cooling water to flow inside the apparatus main body on the one side, and
the control means controls the one-side flow means on the basis of information from the one-side temperature measuring means.

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Kaneko Takeshi
• Nakagawa Keiichi
• Omoto Setsuo
• Sato Keiichi
• Asahara Junji

Classifications

• C10L9/06

  by oxidation · CPC title

• C10L2290/60

  Measuring or analysing fractions, components or impurities or process conditions during preparation or upgrading of a fuel · CPC title

• C10L9/08

  by heat treatments, e.g. calcining · CPC title

• A62C3/06 Primary

  of highly inflammable material, e.g. light metals, petroleum products · CPC title

• C10L5/26 Primary

  After-treatment of the {shaped fuels, e.g.} briquettes · CPC title