Atomizing nozzle and spraying dust-settling system

Abstract

The utility model relates to the technical field of spraying and dust falling, and discloses an atomizing nozzle and a spraying and dust falling system.The atomizing nozzle comprises a rear cylinder and a front cylinder which are connected through a locking cap, a liquid flow channel is transversely formed in the rear cylinder, a crushing cavity is formed in the front cylinder, water mist nozzles are evenly formed in the end of the front cylinder, and the atomizing nozzle further comprises a gas flow channel which is formed in the rear cylinder and communicated with the liquid flow channel. The rear end of the liquid flow channel is connected with the gas distribution disc, the front end of the liquid flow channel is branched to form a main gas channel and a branch gas channel, and the virtual extension line of the branch gas channel intersects with the virtual extension line of the liquid flow channel; when liquid just flows out of the liquid flow channel, the liquid is crushed for the first time under the action of compressed air discharged by the branch air channel, after the first crushing, the liquid impacts on the turbulent flow column to be crushed for the second time, after the second crushing, the liquid is mixed with the compressed air and discharged through the water mist nozzle, and the liquid is discharged through the water mist nozzle at the moment of discharging and under the action of compressed air discharged by the second-stage outlet. And the liquid is crushed for three times, so that the crushing is more thorough, the water mist is finer, and the dust falling effect is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray dust suppression, in particular to an atomizing nozzle and a spray dust suppression system. Background Art

[0002] Mine dust is the general term for solid fine particles generated in the process of coal production. A large amount of dust is discharged into the underground air in multiple links such as mine production, coal storage, coal transportation, and roadway tunneling. These dusts have negative impacts on safety, health, environment, etc. In the prior art, for these dusts, there are generally two dust removal methods: wet dust removal and dry dust removal. Among them, the wet dust removal process system is simple, has high safety and reliability, and strong adaptability to the complex environment of the mine, so it is more widely used.

[0003] In wet dust removal, an atomizing nozzle is generally used to spray water mist for dust suppression. However, in actual production, we found that the existing atomizing nozzles still have certain deficiencies, such as:

[0004] The dust concentration of mine dust is often very high. Although increasing the liquid flow rate can improve the dust suppression efficiency to a certain extent, the improvement effect is very limited. The existing atomizing nozzles generally mainly use primary mixing atomization. When the liquid flow rate is increased, the atomized particles will be relatively large, resulting in an unsatisfactory dust suppression effect, not only wasting water resources, but also deteriorating the working environment. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides an atomizing nozzle and a spray dust suppression system, which have the advantages of thorough multiple fragmentation atomization and fine water mist with good dust suppression effect.

[0007] (2) Technical Solutions

[0008] To achieve the above-mentioned purpose of thorough multiple fragmentation atomization and fine water mist with good dust suppression effect, the utility model provides the following technical solutions: an atomizing nozzle, including a rear cylinder and a front cylinder connected by a locking cap. A liquid flow channel is horizontally opened in the rear cylinder. A fragmentation chamber is formed inside the front cylinder, and water mist spray ports are evenly opened at the end. It further includes:

[0009] A gas flow channel is opened in the rear cylinder, connected to a gas distribution plate at the rear end, and bifurcated at the front end to form a main air duct and a branch air duct. The virtual extension line of the branch air duct intersects with the virtual extension line of the liquid flow channel;

[0010] The main air duct is opened in the wall of the front cylinder, and a secondary outlet is formed at the end obliquely. The secondary outlet is communicated with the water mist spray port.

[0011] As a preferred technical solution of the present utility model, it further includes spoiler columns, which are fixedly installed inside the front cylinder, and the installation positions correspond to the positions of the liquid flow channels.

[0012] As a preferred technical solution of the present utility model, a connection head is fixedly connected to the tail end of the rear cylinder, and a through groove communicating with the liquid flow channel is provided inside the connection head.

[0013] As a preferred technical solution of the present utility model, the main air duct is flush with the gas flow channel, and the branch air duct is inclined to the gas flow channel.

[0014] As a preferred technical solution of the present utility model, the intersection point of the virtual extension line of the branch air duct and the virtual extension line of the liquid flow channel is located in front of the spoiler column.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present utility model provides an atomizing nozzle, which has the following beneficial effects:

[0017] 1. For this atomizing nozzle, when the liquid just exits the liquid flow channel, it undergoes a primary breakup under the action of the compressed air discharged from the branch air duct. After the primary breakup, the liquid impacts on the spoiler column and undergoes a secondary breakup. After the secondary breakup, the liquid is mixed with the compressed air and discharged through the water mist nozzle. At the moment of discharge, under the action of the compressed air discharged from the secondary outlet, the liquid undergoes a tertiary breakup, resulting in more thorough breakup and finer water mist, thereby significantly improving the dust suppression effect.

[0018] 2. For this atomizing nozzle, the compressed air is introduced from the gas flow channel and can supply both the branch air duct and the main air duct simultaneously, enabling multiple breakups of the liquid without the need for an additional air source. Description of the drawings

[0019] Figure 1 It is a schematic diagram of the atomizing nozzle part of the present utility model;

[0020] Figure 2 It is a sectional view of the atomizing nozzle part of the present utility model;

[0021] Figure 3 It is a schematic diagram of the spray dust suppression system of the present utility model;

[0022] Figure 4 It is a sectional view of the fixed fixture part of the present utility model.

[0023] In the figure: 1. Rear cylinder; 2. Front cylinder; 3. Locking cap; 4. Connector; 5. Liquid flow channel; 6. Turbulence column; 7. Water mist nozzle; 8. Gas flow channel; 9. Air distribution plate; 10. Branch air duct; 11. Main air duct; 12. Secondary outlet; 13. Water delivery hose; 14. Water supply pipe; 15. Flexible support; 16. Fixed clamp; 1601. Adjustment cabinet; 1602. Threaded rod; 1603. Knob; 1604. First nut; 1605. Second nut; 1606. Clamping plate. Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1:

[0026] Please refer to Figure 1 and Figure 2 , an atomizing nozzle, including a rear cylinder 1 and a front cylinder 2 connected by a locking cap 3. As Figure 2 shown, a liquid flow channel 5 is horizontally opened in the rear cylinder 1, a crushing chamber is formed inside the front cylinder 2, and water mist nozzles 7 are evenly opened at the end of the front cylinder 2;

[0027] In this embodiment, a gas flow channel 8 is opened in the rear cylinder 1. The rear end of the gas flow channel 8 is connected to an air distribution plate 9, and the front end bifurcates to form a main air duct 11 and a branch air duct 10. Among them, the virtual extension line of the branch air duct 10 intersects with the virtual extension line of the liquid flow channel 5. The main air duct 11 is opened in the wall body of the front cylinder 2, and the end is inclined to form a secondary outlet 12, and the secondary outlet 12 is communicated with the water mist nozzle 7;

[0028] As Figure 2 shown, a turbulence column 6 is also provided, fixedly installed inside the front cylinder 2, and the installation position of the turbulence column 6 corresponds to the position of the liquid flow channel 5;

[0029] When the liquid just exits the liquid flow channel 5, under the action of the compressed air discharged from the branch air duct 10, it undergoes a first fragmentation. After the first fragmentation, the liquid impacts on the turbulence column 6 and undergoes a second fragmentation. After the second fragmentation, the liquid is mixed with the compressed air and discharged through the water mist nozzle 7. At the moment of discharge, under the action of the compressed air discharged from the secondary outlet 12, the liquid undergoes a third fragmentation. Through the three fragmentations before and after, the fragmentation can be more thorough and the water mist can be finer, thereby significantly improving the dust reduction effect.

[0030] In this embodiment, the intersection point of the virtual extension line of the branch airway 10 and the virtual extension line of the liquid flow channel 5 is located in front of the spoiler column 6, so that the liquid will be broken once by the compressed air first and then hit the spoiler column 6 for secondary breakage.

[0031] As Figure 2 shown, the main airway 11 is flush with the gas flow channel 8, while the branch airway 10 is inclined to the gas flow channel 8. The compressed air is introduced from the gas flow channel 8 and can supply the branch airway 10 and the main airway 11 simultaneously, enabling multiple breakages of the liquid without the need to set up another air source.

[0032] In the present utility model, a connector 4 is fixedly connected to the tail end of the rear cylinder 1. A through groove communicating with the liquid flow channel 5 is provided inside the connector 4, and the connector 4 is used to connect the liquid supply pipeline.

[0033] Embodiment Two:

[0034] Please refer to Figure 3 and Figure 4 , on the basis of Embodiment One, a spray dust suppression system is disclosed in this embodiment, which includes a water supply pipe 14. As Figure 3 shown, the atomizing nozzle is connected to the water supply pipe 14 through a water delivery hose 13, so that atomized water can be sprayed through the atomizing nozzle to suppress dust;

[0035] In this embodiment, a fixing fixture 16 is also provided. The fixing fixture 16 is connected to the water supply pipe 14 through a flexible bracket 15 and is used to clamp and fix the atomizing nozzle to keep the atomizing nozzle in a proper position. Due to the adoption of the flexible bracket 15, the position and angle of the atomizing nozzle can be freely adjusted.

[0036] This embodiment also discloses a specific structure of the fixing fixture 16. As Figure 4 shown, the fixing fixture 16 includes an adjusting cabinet 1601 and two clamping plates 1606 movably arranged on the top of the adjusting cabinet 1601;

[0037] A threaded rod 1602 is rotatably arranged inside the adjusting cabinet 1601. One end of the threaded rod 1602 is rotatably arranged on the inner side wall of the adjusting cabinet 1601, and the other end extends to the outside of the adjusting cabinet 1601 and is fixedly connected to a knob 1603. Threads one and two with opposite helix directions are respectively formed on both sides of the outer wall of the threaded rod 1602. A nut one 1604 and a nut two 1605 are respectively threadedly connected to the outer walls of threads one and two. The nut one 1604 and the nut two 1605 are fixedly connected to the two clamping plates 1606 through two connecting blocks respectively;

[0038] Turning the knob 1603 can cause the threaded rod 1602 to rotate. The rotation of the threaded rod 1602, through the threads one and two with opposite helix directions on its outer wall, can cause the first nut 1604 and the second nut 1605 to move in opposite directions, approaching or moving away from each other. The first nut 1604 and the second nut 1605 approaching or moving away from each other through the two connecting blocks can cause the two clamping plates 1606 to approach or move away from each other, so as to clamp and fix the atomizing nozzle or loosen the atomizing nozzle.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An atomizing nozzle, comprising a rear tube (1) and a front tube (2) connected by a locking cap (3), wherein a liquid flow channel (5) is transversely opened in the rear tube (1), a crushing chamber is formed inside the front tube (2), and water mist nozzles (7) are evenly opened at the ends, characterized in that: Also includes: The gas flow channel (8) is provided in the rear tube (1), the rear end of which is connected to the gas distribution plate (9), and the front end of which is bifurcated to form a main gas channel (11) and a branch gas channel (10), wherein the virtual extension line of the branch gas channel (10) intersects with the virtual extension line of the liquid flow channel (5); The main air passage (11) is opened in the wall of the front tube (2), and a secondary outlet (12) is formed at an inclined end. The secondary outlet (12) is connected to the water mist nozzle (7).

2. The atomizing nozzle according to claim 1, characterized in that: It also includes a spoiler column (6) which is fixedly installed in the front cylinder (2) and the installation position corresponds to the position of the liquid flow channel (5).

3. The atomizing nozzle according to claim 1, characterized in that: The tail end of the rear tube (1) is fixedly connected to a connector (4), and a through groove communicating with a liquid flow channel (5) is provided inside the connector (4).

4. The atomizing nozzle according to claim 1, characterized in that: The main air channel (11) is flush with the gas flow channel (8), and the branch air channel (10) is inclined toward the gas flow channel (8).

5. The atomizing nozzle according to claim 1, characterized in that: The intersection point of the virtual extension line of the branch air channel (10) and the virtual extension line of the liquid flow channel (5) is located in front of the spoiler column (6).

6. A spray dust suppression system, comprising an atomizing nozzle as claimed in any one of claims 1 to 5, characterized in that: include: Water supply pipe (14); An atomizing nozzle is connected to a water supply pipe (14) via a water delivery hose (13); The fixing fixture (16) is connected to the water supply pipe (14) and is used for clamping and fixing the atomizing nozzle.

7. The spray dust suppression system according to claim 6, characterized in that: The fixing fixture (16) is connected to the water supply pipe (14) via a flexible bracket (15).

8. The spray dust suppression system according to claim 6, characterized in that: The fixing fixture (16) comprises an adjustment cabinet (1601) and two clamping plates (1606) movably arranged on the top of the adjustment cabinet (1601).

9. The spray dust suppression system according to claim 8, characterized in that: A threaded rod (1602) is rotatably arranged inside the regulating cabinet (1601), and two sides of the outer wall of the threaded rod (1602) are respectively formed with a thread one and a thread two with opposite rotation directions, and the outer walls of the thread one and the thread two are respectively threadedly connected with a nut one (1604) and a nut two (1605), and the nut one (1604) and the nut two (1605) are respectively fixedly connected to two clamping plates (1606) through two connecting blocks.

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