Anti-blocking roadway dust removal nozzle

Abstract

The utility model discloses a kind of anti-clogging roadway dust removal nozzles, belong to mining dust removal or dust reduction technical field, including nozzle main body, the butt joint nozzle connected in the rear end of nozzle main body and the water nozzle connected in the front end of nozzle main body;The water nozzle is completely surrounded by dust cover shell and the guide cover shell coaxially connected to the front end of dust cover shell and detachably installed at the place, and water outlet corresponding to water nozzle position is opened between dust cover shell and guide cover shell;Elasticity is installed in the guide cover shell and the plug block of control water outlet opening or closing.There is a double anti-clogging mode in the anti-clogging roadway dust removal nozzle, dust cover shell physically intercepts large particle dust, elastic plug block completely blocks water outlet in non-working state, blocks fine dust invasion, water flow impact plug block is automatically opened when spraying, from "passive exposure" upgrade "active+dynamic" protection, greatly reduce the risk of blockage.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology in mining, specifically to an anti-clogging dust removal nozzle for roadways. Background Technology

[0002] During coal mining, a large amount of dust is generated in the tunnels, which not only endangers the health of workers but may also cause safety accidents such as gas explosions. Currently, the commonly used dust removal method is to spray water mist through high-pressure water jet nozzles to adsorb dust and allow it to settle.

[0003] However, traditional nozzles have the following drawbacks:

[0004] The nozzles are directly exposed to the dusty environment without any protective structure, making it easy for dust to enter the internal channels of the nozzles and cause blockage of the nozzle holes. After long-term use, the inside of the nozzles is prone to blockage due to water flow impact or impurity accumulation, requiring frequent disassembly and cleaning, which affects the continuity of dust removal. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an anti-clogging dust removal nozzle for roadways. It isolates external dust through a detachable dust cover and automatically controls the opening and closing of the water outlet by an elastic plug in the guide cover. This solves the problem of clogging caused by dust accumulation or water flow impact in traditional nozzles, while improving the durability of the nozzle.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A clog-resistant dust removal nozzle for roadways includes a nozzle body, a connecting nozzle connected to the rear end of the nozzle body, and a water nozzle connected to the front end of the nozzle body. A dust cover that completely surrounds the water nozzle and a guide cover coaxially connected to the front end of the dust cover are detachably installed at the location of the water nozzle. A water outlet corresponding to the position of the water nozzle is opened between the dust cover and the guide cover. A plug that controls the opening or closing of the water outlet is elastically installed inside the guide cover.

[0008] By adopting the above solution, the anti-clogging roadway dust removal nozzle uses a dual anti-clogging method. The dust cover physically intercepts large dust particles, and the elastic plug completely seals the water outlet when not in operation, preventing fine dust from entering. When spraying water, the water flow impacts the plug and automatically opens it, upgrading from "passive exposure" to "active + dynamic" protection, greatly reducing the risk of clogging, eliminating the need for regular manual cleaning, and also improving the durability of the nozzle.

[0009] As a preferred embodiment of an anti-clogging roadway dust removal nozzle, the dust cover is threadedly connected to the nozzle body at the location of the water nozzle, which facilitates cleaning of internal dust or replacement of plugs. Furthermore, the inner circumferential surface of the dust cover is tightly fitted to the outer circumferential surface of the nozzle body to ensure sealing.

[0010] As a preferred embodiment of an anti-clogging roadway dust removal nozzle, the guide cover extends from the rear end to the front end to form a gradually expanding guide port, which can expand the water outlet range. The water outlet is a circular opening extending along the axial direction of the nozzle, and its diameter matches the maximum radial dimension of the plug, thereby achieving complete sealing of the water outlet.

[0011] As a preferred embodiment of an anti-clogging roadway dust removal nozzle, a compression spring is installed at the front end of the plug block and is coaxially arranged with the water outlet. The plug block is pushed by the compression spring to control the opening or closing of the water outlet. When water is sprayed, the water flow from the nozzle impacts the front end of the plug block, and the compression spring causes the plug block to move backward to open the water outlet. After the water spraying stops, the compression spring pushes the plug block forward to reset and re-seal the water outlet, realizing automatic control of "water spraying on - water stoppage off" without manual intervention.

[0012] As a preferred embodiment of an anti-clogging roadway dust removal nozzle, in order to ensure that the plug can move axially, the inner wall of the guide cover is provided with a limiting boss along the axial direction, and the outer circumference of the plug is provided with a limiting groove corresponding to the position of the limiting boss. The radial sway of the plug is restricted by the cooperation between the limiting boss and the limiting groove. A compression spring is fitted on the limiting boss. The limiting boss is a T-shaped boss, and the compression spring is fitted on the axial part of the T-shaped boss coaxial with the water outlet, thereby realizing the assembly of the compression spring.

[0013] As a preferred embodiment of an anti-clogging roadway dust removal nozzle, the rear end of the plug is a spherical or conical structure adapted to the water outlet, which has the best adaptation effect to the water outlet and can achieve complete sealing of the water outlet.

[0014] As a preferred embodiment of an anti-clogging roadway dust removal nozzle, the outer surfaces of the dust cover, guide cover, and nozzle body are provided with multiple anti-slip ridges to improve the grip and reduce the difficulty of disassembly.

[0015] As a preferred embodiment of an anti-clogging roadway dust removal nozzle, multiple circumferentially arrayed swirl guide plates are installed on the inner wall of the rear end of the guide cover. These guide plates can guide the water flow to rotate, forming a vortex-shaped water mist, which enhances the dust adsorption effect and reduces nozzle vibration caused by direct water flow.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] 1. Anti-clogging design: The nozzle is completely surrounded by a dust cover to isolate external dust and prevent dust from directly entering the nozzle; the water outlet between the guide cover and the dust cover is only opened when water is spraying, and is blocked by a plug when there is no water flow to prevent dust from entering.

[0018] 2. Automatic opening and closing control: The elastic plug inside the guide cover automatically moves backward to open the water outlet under the impact of water flow. After the water flow stops, it is reset and sealed by the spring, realizing automatic control of "water spraying on - water stoppage off", without manual intervention.

[0019] 3. Impact resistance and stability: The fit between the limiting boss and the limiting groove restricts the radial movement of the plug, ensuring that the plug and the outlet are coaxial and avoiding uneven wear; the set structure of the limiting boss and the compression spring enhances the installation stability of the spring and extends its service life.

[0020] 4. Convenient maintenance: The dust cover is detachably connected by threads, making it easy to clean the internal dust or replace the plug; the anti-slip textured design improves the grip and reduces the difficulty of disassembly.

[0021] 5. Swirl-enhanced dust removal: The swirling guide plate at the rear end of the guide cover can guide the water flow to rotate, forming a vortex-shaped water mist, which enhances the dust adsorption effect and reduces nozzle vibration caused by direct water flow. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 Three-dimensional structure for anti-clogging dust removal nozzles in roadways Figure 1 ;

[0024] Figure 2 Three-dimensional structure for anti-clogging dust removal nozzles in roadways Figure 2 ;

[0025] Figure 3 Right view of the anti-clogging dust removal nozzle for the tunnel;

[0026] Figure 4 For horizontal display Figure 1 A three-dimensional structural diagram of the internal structure;

[0027] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0028] Figure 6 For horizontal display Figure 1 A three-dimensional structural diagram of the internal structure;

[0029] Figure 7 for Figure 6 A magnified view of a section at point B.

[0030] The markings in the diagram are: 1- Nozzle body; 2- Connecting nozzle; 3- Water spray nozzle; 4- Dustproof cover; 5- Guide cover; 6- Water outlet; 7- Plug; 8- Compression spring; 9- T-shaped boss; 10- Limiting groove; 11- Swirl guide plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1 to 7 As shown, an anti-clogging dust removal nozzle for underground tunnels is provided. It uses water spray to remove and reduce dust during mining operations. Specifically, it includes a nozzle body 1, a connecting nozzle 2 connected to the rear end of the nozzle body 1, and a water spray nozzle 3 connected to the front end of the nozzle body 1. A dustproof cover 4 completely surrounds the water spray nozzle 3, and a guide cover 5 coaxially connected to the front end of the dustproof cover 4. A water outlet 6 corresponding to the position of the water spray nozzle 3 is opened between the dustproof cover 4 and the guide cover 5. A plug 7, which controls the opening and closing of the water outlet 6, is elastically installed inside the guide cover 5. This anti-clogging dust removal nozzle employs a dual anti-clogging method: the dustproof cover 4 physically intercepts large dust particles, and the elastic plug 7 completely seals the water outlet 6 when not in operation, preventing the intrusion of fine dust. When spraying water, the water flow impacts the plug 7, automatically opening it. This upgrades from "passive exposure" to "active + dynamic" protection, significantly reducing the risk of clogging, eliminating the need for regular manual cleaning, and improving the nozzle's durability.

[0033] like Figure 4 , Figure 6 As shown, the dust cover 4 is threadedly connected to the nozzle body 1 where the water nozzle 3 is located, which facilitates cleaning the internal dust or replacing the plug 7. The inner circumferential surface of the dust cover 4 is tightly fitted with the outer circumferential surface of the nozzle body 1 to ensure sealing.

[0034] like Figure 4 , Figure 6 As shown, the guide cover 5 extends from the rear end to its front end to form a gradually expanding guide port, which can expand the water outlet range. The water outlet 6 is a circular opening that extends along the axial direction of the nozzle 3. Its diameter matches the maximum radial dimension of the plug 7, thereby achieving complete sealing of the water outlet 6. Of course, the shape of the water outlet 6 can also be other shapes.

[0035] like Figure 5 , Figure 7As shown, a compression spring 8 is installed at the front end of the plug 7, which is coaxially arranged with the water outlet 6. The plug 7 is pushed by the compression spring 8 to control the opening or closing of the water outlet 6. When water is sprayed, the water flow from the nozzle 3 impacts the front end of the plug 7, and the compression spring 8 causes the plug 7 to move backward to open the water outlet 6. After the water spraying stops, the compression spring 8 pushes the plug 7 forward to reset and re-seal the water outlet 6, realizing automatic control of "water spraying on - water stopping off", without manual intervention.

[0036] like Figure 5 , Figure 7 As shown, in order to ensure that the plug 7 can move axially, the inner wall of the guide cover 5 is provided with a limiting boss along the axial direction, and the outer circumference of the plug 7 is provided with a limiting groove 10 corresponding to the position of the limiting boss. The radial sway of the plug 7 is restricted by the cooperation between the limiting boss and the limiting groove 10. The compression spring 8 is fitted on the limiting boss. The limiting boss is a T-shaped boss 9. The compression spring 8 is fitted on the axial part of the T-shaped boss 9 coaxial with the outlet 6, thereby realizing the assembly of the compression spring 8.

[0037] like Figure 5 , Figure 7 As shown, the rear end of the plug 7 is a spherical structure that fits the outlet 6. It has the best fit with the outlet 6 and can completely block the outlet 6. Of course, it can also be conical, which also has a good fit with the outlet 6.

[0038] like Figures 1 to 3 As shown, the outer surfaces of the dust cover 4, the guide cover 5, and the nozzle body 1 are provided with multiple anti-slip ridges. The anti-slip ridges are omitted in the figure, which can improve the grip and reduce the difficulty of disassembly.

[0039] like Figure 4 , Figure 6 As shown, multiple circumferentially arrayed swirl guide plates 11 are installed on the inner wall of the rear end of the guide cover 5, which can guide the water flow to rotate, form a vortex-shaped water mist, enhance the dust adsorption effect, and reduce nozzle vibration caused by direct water flow.

[0040] The working principle of this utility model:

[0041] In use, when high-pressure water (from the water supply pipe) is introduced into the nozzle body 1, the water is pressurized by the nozzle 3 and sprayed forward. The high-speed water flow impacts the spherical rear end face of the plug 7, overcoming the elastic force of the compression spring 8 and pushing the plug 7 backward. The outlet 6 is opened, and the water flow is sprayed outward through the outlet 6 to form a water mist, which adsorbs dust in the tunnel. When the water supply is stopped, the water pressure disappears, the compression spring 8 pushes the plug 7 forward to reset, and the spherical rear end face re-seals the outlet 6, preventing dust from entering the guide cover 5 and the dustproof cover 4.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clog-resistant dust removal nozzle for roadways, comprising a nozzle body, a connecting nozzle connected to the rear end of the nozzle body, and a water spray nozzle connected to the front end of the nozzle body; Its features are: The nozzle is detachably installed with a dust cover that completely surrounds it and a guide cover coaxially connected to the front end of the dust cover. A water outlet corresponding to the nozzle position is opened between the dust cover and the guide cover. A plug that controls the opening or closing of the water outlet is elastically installed inside the guide cover.

2. The anti-clogging roadway dust removal nozzle according to claim 1, characterized in that: The dust cover is threadedly connected to the nozzle body at the location of the water spray nozzle, and the inner circumferential surface of the dust cover is tightly fitted to the outer circumferential surface of the nozzle body.

3. The anti-clogging roadway dust removal nozzle according to claim 1, characterized in that: The guide cover extends from the rear end to the front end to form a gradually expanding guide port, and the water outlet is a circular opening extending along the axial direction of the nozzle, the diameter of which matches the maximum radial dimension of the plug.

4. The anti-clogging roadway dust removal nozzle according to claim 1, characterized in that: The front end of the plug is equipped with a compression spring coaxially arranged with the water outlet. The plug is pushed by the compression spring to control the opening or closing of the water outlet. When water is sprayed, the water flow from the nozzle impacts the front end of the plug, and the compression spring causes the plug to move backward to open the water outlet. After the water spraying stops, the compression spring pushes the plug forward to reset and re-seal the water outlet.

5. The anti-clogging dust removal nozzle for roadways according to claim 4, characterized in that: The inner wall of the guide cover is provided with a limiting boss along the axial direction, and the outer circumference of the plug is provided with a limiting groove corresponding to the position of the limiting boss. The radial sway of the plug is restricted by the cooperation between the limiting boss and the limiting groove, and the compression spring is sleeved on the limiting boss.

6. The anti-clogging roadway dust removal nozzle according to claim 5, characterized in that: The limiting boss is a T-shaped boss, and the compression spring is sleeved on the axial part of the T-shaped boss that is coaxial with the water outlet.

7. The anti-clogging roadway dust removal nozzle according to claim 4, characterized in that: The rear end of the plug is a spherical structure adapted to the water outlet.

8. The anti-clogging roadway dust removal nozzle according to claim 4, characterized in that: The rear end of the plug is a conical structure adapted to the water outlet.

9. The anti-clogging dust removal nozzle for roadways according to claim 1, characterized in that: The outer surfaces of the dust cover, guide cover, and nozzle body are provided with multiple anti-slip ridges.

10. The anti-clogging dust removal nozzle for roadways according to any one of claims 1-9, characterized in that: Multiple swirling guide plates arranged in a circumferential array are installed on the inner wall of the rear end of the guide cover.

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