Title:
COOL FLAME SPRAYING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/147128
Kind Code:
A1
Abstract:
Disclosed is a cool flame spraying apparatus, comprising a feeding pipe (4) provided with a feeding screw rod (3), wherein an upward metal-powder drop opening is provided in an inner end of the feeding pipe (4), a metal-powder drop channel is provided between the metal-powder drop opening and a hopper (5), a switch device that can make the channel close and open is arranged in the metal-powder drop channel, an outer end of the feeding pipe (4) is in communication with a firework spraying pipe (7), and the bottom end of the firework spraying pipe (7) is connected to a switch valve (10). In the apparatus, the feeding screw rod is arranged in the feeding pipe, such that the spraying speed is increased; the switch device is arranged in the metal-powder drop channel, such that the quantity of metal powder entering the feeding pipe is more precise; and rapid spraying can be reliably realized.
Inventors:
LUO BIN (CN)
CHEN JIANGBO (CN)
LUO MIN (CN)
WANG TONGXIANG (CN)
CHEN JIANGBO (CN)
LUO MIN (CN)
WANG TONGXIANG (CN)
Application Number:
PCT/CN2020/076100
Publication Date:
July 29, 2021
Filing Date:
February 21, 2020
Export Citation:
Assignee:
SHOWVEN TECH CO LTD (CN)
International Classes:
F42B4/18
Foreign References:
CN105371707A | 2016-03-02 | |||
CN105371707A | 2016-03-02 | |||
CN107621202A | 2018-01-23 | |||
CN204202494U | 2015-03-11 | |||
CN109238033A | 2019-01-18 | |||
CN105241318A | 2016-01-13 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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