CN211924237U - Underground foam dust suppression spray head - Google Patents
Underground foam dust suppression spray head Download PDFInfo
- Publication number
- CN211924237U CN211924237U CN202020351968.XU CN202020351968U CN211924237U CN 211924237 U CN211924237 U CN 211924237U CN 202020351968 U CN202020351968 U CN 202020351968U CN 211924237 U CN211924237 U CN 211924237U
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- nozzle
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- spray
- dust
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Abstract
The utility model discloses a foam dust suppression shower nozzle in pit, it includes: the inlet end of the spray head (2) is connected with the hose (1); the spray head (2) is fixed at the top end of the adjusting bracket (4) through a vertical angle adjusting bolt (5); the spray head (2) comprises an inner spray nozzle (7) and an outer spray nozzle (8), wherein the inner spray nozzle (7) is fixed inside the inlet end of the outer spray nozzle (8); high-pressure foam flows into the spray head (2) through the hose (1); forming high-pressure high-speed foam jet flow, and forming negative pressure at the inner cavity of the outer nozzle (8); negative pressure is formed in the inner cavity of the outer nozzle (8), and external air is sucked into the outer nozzle after being purified by the air filter (3); colliding, shearing and mixing with the high-pressure high-speed foam jet flow, and then spraying along an outer nozzle (8); the technical problems that the foam flow speed sprayed by a spray head in the prior art is insufficient, the direction and the angle can not be adjusted, and dust can not be accurately removed from dust generating points are solved.
Description
Technical Field
The utility model belongs to colliery is the technique of putting out dust in the pit, especially relates to a foam dust suppression shower nozzle in pit.
Background
Currently, the closest prior art: the foam dust-removing device is arranged on an underground mining unit and consists of a dust-removing foam box, a foamer and a spray head; the dust-removing foam box and the foam generator are arranged on a machine frame of the mining machine set, and the spray head is arranged at the tail part of the rocker arm. In the actual production process, the foam flow speed sprayed by the spray head is insufficient, the angle cannot be adjusted, the dust covering area is small, and the foam flow speed is mounted at the tail part of the rocker arm, so that dust can not be accurately removed from a dust producing point when the mining machine set cuts coal/rock, and the dust in the whole roadway is very large when the equipment works.
In summary, the problems of the prior art are as follows: the foam flow speed sprayed by the spray head is insufficient, the direction and the angle can not be adjusted, the dust covering area is small, and the foam flow head is arranged at the tail part of the rocker arm, so that dust can not be accurately removed from a dust producing point when the mining machine set cuts coal or rock.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem be: the utility model provides a foam dust suppression shower nozzle in pit to solve prior art shower nozzle spun foam velocity of flow not enough, direction and angle can't be adjusted, cover dirt area slightly little, and install in rocking arm afterbody position, can't accurately carry out the technical problem such as dust suppression to the dust production point when mining machine group cuts coal or rock.
The utility model adopts the technical proposal that:
a downhole foam dust suppression showerhead, comprising: the inlet end of the spray head is connected with the hose; the spray head is fixed at the top end of the adjusting bracket through a vertical angle adjusting bolt; the spray head includes an inner spray nozzle and an outer spray nozzle, the inner spray nozzle being fixed within the inlet end of the outer spray nozzle.
An air filter is fixed on the outer nozzle, and the air outlet end of the air filter extends into the outer nozzle and is positioned between the inner nozzle and the outer nozzle.
And a horizontal rod of the adjusting bracket is provided with a horizontal angle adjusting bolt.
The spray head is fixed at the front end of the rocker arm of the underground mining unit through the adjusting bracket.
The operation method of the underground foam dust suppression spray head comprises the following steps: when the foam dust suppression is started, the generated high-pressure foam flows through the hose and enters the spray head; the high-pressure foam flow forms high-pressure high-speed foam jet flow under the contraction action of an inner nozzle in the spray head, and negative pressure is formed in a cavity in the outer nozzle; negative pressure is formed in the cavity inside the outer nozzle, and external air is sucked into the outer nozzle after being purified by the air filter; collide with high-pressure high-speed foam jet, shear and mix, then spray out along the outer spray nozzle.
The utility model has the advantages that:
the utility model has simple structure, flexibility and portability, and is arranged at the front end of the rocker arm of the mining unit; the high-pressure foam flow emitted by the foam dust suppression device further increases the spraying speed and distance, increases the void volume of the foam, greatly improves the generation amount of the foam, improves the coverage area of foam dust suppression, performs accurate dust suppression aiming at dust generation points, and improves the dust suppression efficiency; the technical problems that the foam flow speed sprayed by a spray head in the prior art is insufficient, the direction and the angle can not be adjusted, the dust covering area is small, and the dust covering area is arranged at the tail part of a rocker arm, so that dust can not be accurately removed from a dust producing point when a mining machine set cuts coal or rock, and the like are solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of a novel showerhead provided by an embodiment of the present invention.
Detailed Description
The utility model discloses limitation to present mining unit dust suppression shower nozzle in the pit: the foam flow speed sprayed by the spray head is insufficient, the direction and the angle can not be adjusted, the dust covering area is small, and the foam flow head is arranged at the tail part of the rocker arm, so that dust can not be accurately removed from a dust producing point when the mining machine set cuts coal/rock. The utility model discloses a shower nozzle improves the injection velocity of current foam dust suppression device, improves the mode of the rich content of air in the foam stream, adopts the mode of adjustable injection direction and angle to reach and increase injection velocity and distance, increase the vacuole volume of foam, improve the production volume of foam, improve the coverage area that the foam goes out dirt, and carry out accurate dust suppression to producing the dirt point, improve the purpose of dust suppression efficiency.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings.
A downhole foam dust suppression showerhead, comprising: the inlet end of the spray head 2 is connected with the hose 1; the spray head 2 is fixed at the top end of the adjusting bracket 4 through a vertical angle adjusting bolt 5; the spray head 2 comprises an inner nozzle 7 and an outer nozzle 8, the inner nozzle 7 being fixed inside the inlet end of the outer nozzle 8.
The utility model discloses a hose 1 adopts high-pressure hose, is connected with the foaming ware of dust suppression foam case for carry high-pressure foam to flow to shower nozzle 2.
The adjusting bracket 4 is made of L50 multiplied by 50 angle steel and is used for installing and fixing the novel spray head 2; the adjusting bracket 4 comprises a horizontal rod and a vertical rod; the horizontal rod and the vertical rod are welded and fixed.
The spray head 2 is arranged at the top end of the adjusting bracket 4, the rear end of the spray head is connected with the hose 1, and the spray head is provided with the air filter 3 for improving the speed of the foam flow and the air content; the nozzle 2 is fixed on the top end of a vertical rod of the adjusting bracket 4 by two vertical angle adjusting bolts 5 through a U-shaped clamping piece.
The outer nozzle 8 is fixed with the air filter 3, and the air outlet end of the air filter 3 extends into the outer nozzle 8 and is positioned between the inner nozzle 7 and the outer nozzle 8.
When the high-pressure foam flow passes through, the high-speed jet flow is generated under the contraction action of the inner nozzle 7, and when the high-speed jet flow is aborted, the air in the nozzle is taken away, so that negative pressure is generated in the nozzle.
In a negative pressure environment, after being sucked into the outer nozzle 8 through the air filter 3, the outside air collides and is sheared with the high-speed foam jet flow, and foam rich in a large amount of air is formed and is ejected through the outer nozzle 8 at a high speed.
The air filter 3 of the utility model is arranged on the spray head 2, and the air outlet end of the air filter 3 extends into the outer nozzle 8 and is positioned between the inner nozzle 7 and the outer nozzle 8; the air filter 3 is used for filtering dust in the air and purifying the air entering the spray head 2. And the nozzle blockage caused by the dust entering the nozzle along with air is avoided.
Two M16 vertical angle adjusting bolts 5 are arranged on the adjusting bracket 4 and are used for fixing the spraying angle of the spray head 2; during adjustment, the vertical angle adjusting bolt 5 is unscrewed; adjusting the spray angle of the nozzle, and then fixing the nozzle.
A horizontal rod of the adjusting bracket 4 is provided with an M16 horizontal angle adjusting bolt 6 for fixing the adjusting bracket; when the spraying direction of the spray head 2 is adjusted; unscrewing the horizontal angle adjusting bolt 6; the direction of the bracket is moved to realize the adjustment of the spraying direction of the spray head 2; after the adjustment is finished, screwing the horizontal angle adjusting bolt 6; and fixing the adjusting bracket with the front end of the rocker arm of the underground mining unit.
When the utility model is used, when the existing foam dust suppression is started, the generated high-pressure foam flows through the hose 1 and enters the spray head 2; the high-pressure foam flow forms high-pressure high-speed foam jet flow under the contraction action of the inner nozzle 7 in the spray head 2, and negative pressure is formed in the cavity in the outer nozzle 8; negative pressure is formed in the cavity inside the outer nozzle 8, air is purified through the air filter 3 and then sucked, and the air collides, is sheared and is mixed with high-pressure high-speed foam jet flow at the cavity, and then is sprayed out along the outer nozzle 8. When the utility model is used, the vertical adjusting bolt 5 on the adjusting bracket can be used for adjusting the spraying angle in real time, and the horizontal adjusting bolt 6 can be used for adjusting the spraying direction in real time; thoroughly solves the technical problems existing in the prior art.
Claims (4)
1. A downhole foam dust suppression showerhead, comprising: shower nozzle (2), its characterized in that: the inlet end of the spray head (2) is connected with the hose (1); the spray head (2) is fixed at the top end of the adjusting bracket (4) through a vertical angle adjusting bolt (5); the spray head (2) comprises an inner spray nozzle (7) and an outer spray nozzle (8), and the inner spray nozzle (7) is fixed inside the inlet end of the outer spray nozzle (8).
2. A downhole foam dust suppression showerhead according to claim 1, wherein: an air filter (3) is fixed on the outer nozzle (8), and the air outlet end of the air filter (3) extends into the outer nozzle (8) and is positioned between the inner nozzle (7) and the outer nozzle (8).
3. A downhole foam dust suppression showerhead according to claim 1, wherein: a horizontal rod of the adjusting bracket (4) is provided with a horizontal angle adjusting bolt (6).
4. A downhole foam dust suppression showerhead according to claim 3, wherein: the spray head (2) is fixed at the front end of the rocker arm of the underground mining unit through an adjusting bracket (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020351968.XU CN211924237U (en) | 2020-03-19 | 2020-03-19 | Underground foam dust suppression spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020351968.XU CN211924237U (en) | 2020-03-19 | 2020-03-19 | Underground foam dust suppression spray head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924237U true CN211924237U (en) | 2020-11-13 |
Family
ID=73354757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020351968.XU Active CN211924237U (en) | 2020-03-19 | 2020-03-19 | Underground foam dust suppression spray head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211924237U (en) |
-
2020
- 2020-03-19 CN CN202020351968.XU patent/CN211924237U/en active Active
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