A quick-connect variable-diameter spray gun for powder injection mixing
A technology of spray mixing and quick connection, which is applied in the direction of liquid injection devices and injection devices, etc., and can solve problems such as bonding the inner wall of the nozzle, uneven mixing of thin spray materials, and inability to quickly condense the slurry.
Active Publication Date: 2021-11-16
NANJING INST GENERAL INST OF COAL SCI +1
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Problems solved by technology
[0002] At present, when the thin spraying operation adopts the tidal spraying method, the phenomenon that the sprayed slurry cannot be quickly condensed still occurs, and the main reason is that the thin spraying material is not mixed uniformly.
[0003] Because tidal spray construction is easy to operate, fast, less rebound, can overcome the influence of clogging, pulse, segregation, etc., to meet the needs of automatic spraying machines to adapt to more working conditions, it is necessary to invent a variable-diameter spray gun for thin spraying machines to solve the problem of thin spraying. The spray material is unevenly mixed with water before leaving the nozzle, and the technical problem of sticking to the inner wall of the nozzle
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[0030] According to the attached Figure 1-4 To further explain the specific implementation of this patent:
[0031] A quick-connect variable-diameter spray gun for powder injection mixing, see figure 1 , including a feeding device, a water inlet device, an air inlet device 2, a tapered pipe, a reducing pipe 18 and a nozzle 19.
[0032] The feeding device includes an elbow 1 , and a material inlet 4 is welded at the inlet of the elbow 1 .
[0033] Described water inlet device comprises water inlet pipe joint 14 and wide-angle nozzle 12 (as image 3 ), the elbow 1 is welded with a water inlet pipe, the water inlet pipe joint 14 is connected with the water inlet pipe, and the bottom of the water inlet pipe joint 14 is connected with a wide-angle nozzle 12 (see image 3 ). The center line of the water inlet pipe and the center line of the material inlet 4 are on the same straight line, and the water inlet direction of the water inlet pipe is opposite to the feeding direction ...
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This patent discloses a variable-diameter spray gun for quick-connect powder injection mixing, which includes a feeding device, a water inlet device, an air inlet device, a tapered tube, a variable-diameter tube and a nozzle. The inlet is connected with a material inlet, and the water inlet device includes a water inlet pipe joint and a water inlet nozzle. The elbow is connected with a water inlet pipe, and the bottom of the water inlet pipe joint is connected with the water inlet pipe. The center line of the water inlet pipe and the center line of the material inlet are on the same straight line, and the water inlet direction of the water inlet pipe is opposite to the feeding direction of the material inlet. The inlet of the pipe is connected, the outlet of the tapered pipe is connected with the inlet of the reducing pipe, and the outlet of the reducing pipe is connected with the inlet of the nozzle. The patent enables the thin spray material to be evenly mixed with water before leaving the nozzle, and does not stick to the inner wall of the nozzle.
Description
technical field [0001] This patent belongs to the field of thin spray technology, specifically, it is a quick-connect variable-diameter spray gun for powder spray mixing, which is used for automatic spraying machines for mines. Background technique [0002] At present, when the thin spraying operation adopts the tidal spraying method, the phenomenon that the sprayed slurry cannot be quickly condensed still occurs, and the main reason is that the thin spraying materials are not mixed uniformly. [0003] Because tidal spray construction is easy to operate, fast, less rebound, can overcome the influence of clogging, pulse, segregation, etc., to meet the needs of automatic spraying machines to adapt to more working conditions, it is necessary to invent a variable-diameter spray gun for thin spraying machines to solve the problem of thin spraying. The spray material is unevenly mixed with water before leaving the nozzle, and the technical problem of sticking to the inner wall of ...
Claims
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IPC IPC(8): B05B7/04
CPCB05B7/04
Inventor 吴建生董辉辉杨福禹赵军光郭现伟张苍龙锁卫李振司端科郭建泉赵二会吴东旭柏楠
Owner NANJING INST GENERAL INST OF COAL SCI