Title:
METHOD FOR CUTTING IN CLOSED WORKING SPACE FOR HANDLING HARMFUL SUBSTANCE
Document Type and Number:
WIPO Patent Application WO/2007/020727
Kind Code:
A1
Abstract:
[PROBLEMS] To improve a working environment for cutting a member, to be cut, containing
a harmful substance in a closed space by thermal cutting, which is relatively
easily in work, and thus to ensure safety for workers. [MEANS FOR SOLVING PROBLEMS]
A member to be cut is flame-cut with a flame torch (16) within a close working house.
The construction of the flame torch (16) is such that a preheating flame (52) of
a hydrogen gas, a propane gas, or an oxygen gas, which increases the susceptibility
of the member to burn, is produced around the outer peripheral part, and an oxygen
gas is blown out to the center part to produce a cutting oxygen gas stream (53).
Cutting is carried out by heating the member (4) to be cut to the ignition temperature
with the preheating flame (52), spraying an oxygen gas against that part to burn
the member (4), melting the member (4) by the heat, and, at the same time, blowing
off limewash and slag produced by the combustion by blowing force of the cutting
oxygen gas stream (53). In this state, the flame torch (16) is moved in a direction
indicated by an arrow to successively remove the member (4) by the preheating
flame (52) and the cutting oxygen gas stream (53) and thus to cut the member (4)
into a groove shape.
Inventors:
MOGI, Michinori (LTD. 7-8-13 Nishishinjuku, Shinjuku-k, Tokyo 23, 1600023, JP)
茂木 道教 (〒23 東京都新宿区西新宿７丁目８番１３号 株式会社日本環境調査研究所内 Tokyo, 1600023, JP)
KINASHI, Shuuji (LTD. 7-8-13 Nishishinjuku, Shinjuku-k, Tokyo 23, 1600023, JP)
木梨 秀二 (〒23 東京都新宿区西新宿７丁目８番１３号 株式会社日本環境調査研究所内 Tokyo, 1600023, JP)
茂木 道教 (〒23 東京都新宿区西新宿７丁目８番１３号 株式会社日本環境調査研究所内 Tokyo, 1600023, JP)
KINASHI, Shuuji (LTD. 7-8-13 Nishishinjuku, Shinjuku-k, Tokyo 23, 1600023, JP)
木梨 秀二 (〒23 東京都新宿区西新宿７丁目８番１３号 株式会社日本環境調査研究所内 Tokyo, 1600023, JP)
Application Number:
JP2006/303545
Publication Date:
February 22, 2007
Filing Date:
February 27, 2006
Export Citation:
Assignee:
Japan Environment Research Co., LTD. (7-8-13, Nishishinjuku Shinjuku-k, Tokyo 23, 1600023, JP)
株式会社日本環境調査研究所 (〒23 東京都新宿区西新宿７丁目８番１３号 Tokyo, 1600023, JP)
Suiso Power Co., Ltd. (12-5, Hanedaasahi-cho Ohta-k, Tokyo 42, 1440042, JP)
水素パワー株式会社 (〒42 東京都大田区羽田旭町１２番５号 Tokyo, 1440042, JP)
MOGI, Michinori (LTD. 7-8-13 Nishishinjuku, Shinjuku-k, Tokyo 23, 1600023, JP)
茂木 道教 (〒23 東京都新宿区西新宿７丁目８番１３号 株式会社日本環境調査研究所内 Tokyo, 1600023, JP)
株式会社日本環境調査研究所 (〒23 東京都新宿区西新宿７丁目８番１３号 Tokyo, 1600023, JP)
Suiso Power Co., Ltd. (12-5, Hanedaasahi-cho Ohta-k, Tokyo 42, 1440042, JP)
水素パワー株式会社 (〒42 東京都大田区羽田旭町１２番５号 Tokyo, 1440042, JP)
MOGI, Michinori (LTD. 7-8-13 Nishishinjuku, Shinjuku-k, Tokyo 23, 1600023, JP)
茂木 道教 (〒23 東京都新宿区西新宿７丁目８番１３号 株式会社日本環境調査研究所内 Tokyo, 1600023, JP)
International Classes:
B23K7/00; B23K7/10; B23K7/00
Attorney, Agent or Firm:
NAKAI, Jun (#301, AL Plaza Toyamadai 1-1-5, Toyam, Shinjuku-ku Tokyo 52, 1620052, JP)
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