Anti-clogging cyclone nozzle

Abstract

The utility model provides a kind of anti-blocking cyclone nozzle, it is specifically related to nozzle technical field.The nozzle is used to clean the screen of medium-decking screen, including nozzle body, spiral column and spray head;The upper portion of the inside wall of the nozzle body is provided with a threaded track;The spiral column is movably connected with the nozzle body by the threaded track;The position of the cyclone cavity of the nozzle body close to the bottom is provided with a connecting seat;The spray head is threadedly connected with the nozzle body by the connecting seat.The utility model is provided with spiral column, and the impurities of circulating water are filtered by cyclone, solves the easy wear and tear and blockage of traditional nozzle, causes large water consumption, ideal spray surface is damaged, the situation that screen cleaning surface cannot be completely covered appears, further leads to the screen blockage of medium-decking screen, causes the phenomenon of slurry running.

Description

Technical Field

[0001] This utility model relates to the field of nozzle technology, specifically to an anti-clogging swirl nozzle. Background Technology

[0002] In coal washing operations, desliming and dewatering using vibrating screens is a crucial step. To prevent screen clogging, flushing water is often used to clean the screen surface. The water source for the screen cleaning nozzles is often the return water from the coal washing plant's thickener. During production, the circulating water from the thickener contains incompletely treated coal slime particles, which pose a risk of wear and clogging when entering the nozzles. When the nozzles wear down, water consumption increases, disrupting the originally ideal spray surface. This results in areas on the screen surface that are not covered by the nozzles, leading to screen clogging. When the nozzles are clogged, the screen surface cannot be cleaned in a timely manner, causing coal slime to accumulate and resulting in slurry leakage.

[0003] While it's possible to block particles and impurities in the water flow by installing a filter screen or filter at the water inlet, this method also has some drawbacks. For example, the filter screen or filter itself is easily clogged by particles and dust, requiring regular cleaning or replacement. Furthermore, it reduces water pressure and speed, affecting the flow path and reducing cleaning effectiveness.

[0004] To address the above problems, this invention designs a novel anti-clogging nozzle that uses swirling current to filter impurities from circulating water. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides an anti-clogging swirl nozzle, the specific technical solution of which is as follows: A clogging-resistant swirl nozzle for cleaning a desliming screen includes a nozzle body, a spiral column, and a nozzle head. A threaded track is provided on the upper part of the inner wall of the nozzle body. The spiral column is movably connected to the nozzle body through the threaded track. A connecting seat is provided near the bottom of the swirl chamber of the nozzle body. The nozzle head is threadedly connected to the nozzle body through the connecting seat.

[0006] Preferably, two mud discharge pipe connection holes are symmetrically provided on the side wall of the nozzle body, on the side of the connecting seat away from the nozzle head.

[0007] Preferably, the water outlet channel at the bottom of the nozzle has a fan-shaped structure with the wide side facing downwards; the diameter of the hemispherical inlet of the water outlet channel is 1-3 mm, and the included angle of the frustum-shaped flow channel of the water outlet channel is 30°-50°.

[0008] Preferably, guide cones are provided at both ends of the spiral column, and axial guide vanes are spirally arranged at equal intervals on the surface of the spiral column, avoiding the guide cones.

[0009] Preferably, the cone angle of the guide cone is 20° to 40°.

[0010] Preferably, the pitch of the axial guide vane is 3-5 mm and the lead is 8-16 mm; the pitch of the axial guide vane is adapted to the pitch of the threaded track.

[0011] Preferably, the cone angle of the guide cone located at the bottom is directly above the connection port of the thin cone section of the connector seat.

[0012] More preferably, the nozzle body and the connecting seat are integrally formed.

[0013] The beneficial effects of this utility model are: This invention improves upon traditional nozzles by incorporating a spiral column within the nozzle to achieve spiral filtration, effectively separating impurities from circulating water using the spiral flow. It is particularly effective when the installed machine uses circulating water, which inherently contains impurities. Using the nozzle provided by this invention eliminates the need for a separate filtration process, allowing for fuller recycling of water resources. Attached Figure Description

[0014] The accompanying drawings constituting this utility model are provided to further understand this application and do not constitute an undue limitation on this application.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Sectional view of section aa; Figure 3 This is a schematic diagram of a spiral column. In the figure, 1-nozzle body; 101-liquid inlet; 102-spiral track; 2-spiral column; 201-guide cone; 202-axial guide vane; 3-swirling chamber; 4-connection port; 5-fine cone section; 6-sludge discharge pipe connection hole; 7-connecting seat; 8-nozzle; 9-nozzle chamber; 10-water outlet channel. Detailed Implementation

[0016] The specific implementation of the anti-clogging swirl nozzle provided by this utility model will be further described with reference to the accompanying drawings and embodiments.

[0017] like Figure 1As shown, an anti-clogging swirl nozzle is mainly used for cleaning desliming screens. Specifically, it includes a nozzle body 1, a spiral column 2, and a nozzle head 8. The upper inner wall of the nozzle body 1 is provided with a threaded track 102; the spiral column 2 is detachably connected to the nozzle body 1 via the threaded track 102; a connecting seat 7 is provided near the bottom of the swirl chamber 3 of the nozzle body 1, and the nozzle head 8 is threadedly connected to the nozzle body 1 via the connecting seat 7. It is worth noting that the nozzle body 1 and the connecting seat 7 are integrally formed.

[0018] Preferably, at least two mud discharge pipe connection holes 6 are symmetrically provided along the axis on the side wall of the nozzle body 1, on the side of the connecting seat 7 away from the nozzle 8 (the specific number of mud discharge pipe connection holes 6 is not a further limitation on this utility model). Figure 2 As shown.

[0019] Preferably, the water outlet channel 10 at the bottom of the nozzle 8 has a fan-shaped structure with the wider side facing downwards. The diameter of the hemispherical inlet of the water outlet channel 10 is 1-3 mm, and the included angle of the frustum-shaped flow channel of the water outlet channel 10 is 30°-50°. When the filtered circulating water flows through the frustum-shaped flow channel, it can form a cone-shaped spray with a wide coverage at the outlet, thereby rinsing and cleaning the screen surface.

[0020] like Figure 3 As shown, guide cones 201 are provided at both ends of the spiral column 2, and axial guide vanes 202 are spirally arranged at equal intervals on the surface of the spiral column 2, avoiding the guide cones 201. It is worth noting that the cone angle of the guide cones 201 is 20° to 40°; the pitch of the axial guide vanes 202 is 3 to 5 mm, the lead is 8 to 16 mm, and the pitch of the axial guide vanes 202 is matched with the pitch of the threaded track 102. During installation, simply rotate the axial guide vanes 202 of the spiral column 2 along the spiral track 102 on the inner wall of the nozzle body 1 into the swirling cavity 3 of the nozzle body 1.

[0021] More preferably, the cone angle of the guide cone 2 located at the bottom is directly above the connection port 4 of the thin cone section 5 of the connecting seat 7, thus playing a guiding role.

[0022] The specific working principle of this utility model is as follows: During rinsing, water carrying coal slurry particles and impurities enters the vortex chamber 3 of the nozzle body 1 through the inlet 101 and is diverted by the guide cone 201 on the upper part of the spiral column 2. The circulating water is forced to rotate at high speed along the axial guide vane 202. The denser particles are thrown to the surrounding walls by centrifugal force, while the separated coal slurry particles and impurities are discharged from the nozzle through the slurry pipe connection hole 6 along the wall. The purified clean fluid gathers in the low-pressure zone above the fine cone section 5 of the connecting seat 7 and is guided into the connection port 4 by the guide cone 201 on the lower part of the spiral column 2. It then enters the nozzle chamber 9 under a certain pressure. Finally, the filtered circulating water is sprayed out from the outlet channel 10 at the bottom of the nozzle 8 and rinses the screen surface of the desliming screen, thereby achieving the separation of impurities and water in the spray water.

[0023] This invention improves upon traditional nozzles by incorporating a spiral column within the nozzle to achieve spiral filtration, effectively separating impurities from circulating water using the spiral flow. It is particularly effective when the installed machine uses circulating water, which inherently contains impurities. Using the nozzle provided by this invention eliminates the need for a separate filtration process, allowing for fuller recycling of water resources.

[0024] In this utility model, terms such as "upper," "lower," "bottom," and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are merely used to facilitate the description of the structural relationships of the various components or elements of this utility model and do not specifically refer to any part or element of this utility model; they should not be construed as limiting this utility model. Terms such as "connected" and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and they should not be construed as limiting this utility model.

[0025] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A clog-resistant swirl nozzle for cleaning the screen of a desliming screen, characterized in that, Includes the nozzle body, spiral column, and nozzle head; A threaded track is provided on the upper part of the inner side wall of the nozzle body; the spiral column is movably connected to the nozzle body through the threaded track. A connecting seat is provided near the bottom of the swirling chamber of the nozzle body; the nozzle head is threadedly connected to the nozzle body through the connecting seat. Two mud discharge pipe connection holes are symmetrically opened on the side wall of the nozzle body, on the side of the connecting seat away from the nozzle head.

2. The anti-clogging swirl nozzle according to claim 1, characterized in that, The water outlet channel at the bottom of the nozzle has a fan-shaped structure with the wider side facing downwards; The diameter of the hemispherical inlet of the water outlet channel is 1-3 mm, and the included angle of the frustoconical flow channel of the water outlet channel is 30°-50°.

3. The anti-clogging swirl nozzle according to claim 1, characterized in that, The spiral column is provided with guide cones at both ends, and axial guide vanes are spirally arranged at equal intervals on the surface of the spiral column, avoiding the guide cones.

4. The anti-clogging swirl nozzle according to claim 3, characterized in that, The cone angle of the guide cone is 20° to 40°.

5. The anti-clogging swirl nozzle according to claim 4, characterized in that, The pitch of the axial guide vane is 3-5 mm, and the lead is 8-16 mm; The pitch of the axial guide vane is matched with the pitch of the threaded track.

6. The anti-clogging swirl nozzle according to claim 5, characterized in that, The cone angle of the guide cone located at the bottom is directly above the connection port of the thin cone section of the connector.

7. The anti-clogging swirl nozzle according to claim 1, characterized in that, The nozzle body and the connecting seat are integrally formed.

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