The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2020
Filed:
Feb. 06, 2017
Mitsubishi Hitachi Power Systems, Ltd., Yokohama, Kanagawa, JP;
Yuichiro Urakata, Yokohama, JP;
Koji Nishimura, Yokohama, JP;
Naoto Nakayama, Yokohama, JP;
Yoshinori Koyama, Tokyo, JP;
Tatsuya Kameyama, Tokyo, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Kanagawa, JP;
Abstract
Provided is a pressurizing system which includes: a pressurizing nozzle configured to supply a pressurizing gas into a hopper () where pulverized coal is accumulated; a filter configured to face a space in the hopper () where the pulverized coal is accumulated, and to allow the pressurizing gas to pass through the filter, the filter being provided at an end of the pressurizing nozzle; buffer tanks (), () in which a pressurizing gas to be supplied to the hopper () is collected at a first predetermined pressure; and a pressure control means configured to start, at a time of starting pressurization of the hopper (), supply of a pressurizing gas at a second predetermined pressure which is lower than the first predetermined pressure of the pressurizing gas collected in the buffer tanks (), ().