Self-cleaning anti-blocking aerosol nozzle for slab continuous casting

Abstract

The utility model discloses a self-cleaning anti-blocking aerosol nozzle for slab continuous casting, which comprises a nozzle head provided with a spout. A water inlet is formed in the lower end of the nozzle body; the fixing ring is used for fixedly connecting the nozzle head and the nozzle body together; the nozzle core is arranged in the nozzle and comprises a fixing frame mounted in the inner cavity of the nozzle head, a cleaning assembly rotatably mounted on the fixing frame and used for cleaning the inner cavity of the nozzle head, and a flow guide block located in the inner cavity of the nozzle body and used for guiding flow and pressing the fixing frame; the cleaning assembly comprises a center shaft, the left side end of the center shaft is provided with spiral blades, and the right side end of the center shaft is provided with a plurality of rotating blades distributed in a central symmetry mode. The rotating blades are located in an inner cavity of the flow guide block, and a plurality of flow guide channels distributed in a central symmetry mode are formed in the side wall of the inner cavity of the flow guide block. The nozzle with the design has a self-cleaning function and is provided with the dredging mechanism, so that the nozzle is not easy to block and works stably and lastingly.

Description

Technical Field

[0001] The utility model relates to the field of nozzles, in particular to a self-cleaning anti-clogging aerosol nozzle for slab continuous casting. Background Art

[0002] The slab continuous casting machine is a continuous casting and ironmaking equipment with slab as the main product. During the production process of the slab continuous casting machine, there are many places where nozzles need to be used for spray cooling.

[0003] The existing slab continuous casting machine has a poor production operating environment. The cooling water on site is easily contaminated and easily mixed with iron oxide scale, protective slag and other debris. Therefore, the cooling water nozzles are often blocked, resulting in a decrease in slab quality and an increase in production accidents. Utility Model Content

[0004] The utility model aims to provide an aerosol nozzle for slab continuous casting which has a self-cleaning function and is not easy to be blocked.

[0005] The purpose of the utility model is achieved as follows: a self-cleaning anti-clogging aerosol nozzle for slab continuous casting, comprising a nozzle head, the nozzle head is provided with a nozzle; a nozzle body, the lower end of the nozzle body is provided with a water inlet connected to the inside thereof; a fixing ring, the fixing ring is sleeved on the nozzle head, and is used to fix the nozzle head and the nozzle body together; a nozzle core, the nozzle core is arranged inside the nozzle, and comprises a fixing frame installed in the inner cavity of the nozzle head, and also comprises a cleaning component rotatably mounted on the fixing frame and used for cleaning the inner cavity of the nozzle head, and also comprises a guide block located in the inner cavity of the nozzle body and fixedly mounted on the nozzle head, and used for guiding and pressing the fixing frame;

[0006] The above-mentioned cleaning assembly includes a central shaft rotatably mounted on a fixed frame, a spiral blade is provided at the left end of the above-mentioned central shaft, and a plurality of centrally symmetrically distributed rotating blades are provided at the right end thereof; the above-mentioned rotating blades are located in the inner cavity of the guide block, and a plurality of centrally symmetrically distributed guide channels corresponding to the positions of the rotating blades are opened on the side wall of the inner cavity of the above-mentioned guide block.

[0007] Compared with the prior art, the beneficial effects of the utility model are: the nozzle provided by the utility model has a filter screen at its water inlet, which can filter out larger dirt in the water to prevent clogging; on the other hand, a cleaning component is added to clean the inner cavity wall of the nozzle head to prevent the accumulation of dirt on the inner cavity wall and thus clogging the nozzle. While the cleaning component is working, a vortex is formed therein, which strengthens the impact on the inner cavity wall of the nozzle head and slows down the accumulation of dirt; in addition, a nozzle unclogging mechanism is provided to facilitate timely unclogging of the nozzle and discharge the blockage in the nozzle, thereby ensuring the long-term and stable operation of the nozzle.

[0008] As a preferred embodiment of the utility model, the nozzle further comprises a nozzle dredging mechanism for dredging the nozzle, the nozzle dredging mechanism comprises a dredging needle, the dredging needle is located on the central axis of the nozzle, and can partially move through the nozzle body, the guide block, and the central axis; a limit block, the limit block is arranged at the right end of the dredging needle; and a compression spring, the compression spring is arranged at the right end of the dredging needle, and its two ends are respectively against the nozzle body and the limit block. This design has a simple structure, is easy to operate, and has a good dredging effect.

[0009] Furthermore, the fixing frame includes an outer ring, a center ring located on the inner central axis of the outer ring, and a plurality of vortex blades symmetrically distributed and fixed at both ends to the outer ring and the center ring, respectively. This design can further enhance the swirl in the nozzle head.

[0010] Furthermore, a filter screen is provided on the water inlet, which can filter out debris in the water and further reduce the possibility of blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a structural schematic diagram of the fixing frame of the utility model.

[0013] Figure 3 It is a schematic diagram of the cross-sectional structure of the guide block of the utility model.

[0014] Among them, 1 nozzle head, 1a nozzle, 2 nozzle body, 3 water inlet, 3a filter screen, 4 fixing ring, 5 fixing frame, 5a outer ring, 5b center ring, 5c vortex blade, 6 center shaft, 7 spiral blade, 8 rotating blade, 9 guide block, 9a guide channel, 10 unblocking needle, 11 limit block, 12 compression spring. DETAILED DESCRIPTION

[0015] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0016] Combined with Figures 1 to 3As shown, a self-cleaning anti-clogging aerosol nozzle for slab continuous casting comprises a nozzle head 1, on which a nozzle port 1a is provided; a nozzle body 2, on which a water inlet 3 communicating with the interior is provided at the lower end; a fixing ring 4, which is sleeved on the nozzle head 1 and used to fix the nozzle head 1 and the nozzle body 2 together; a nozzle core, which is arranged inside the nozzle and comprises a fixing frame 5 installed in the inner cavity of the nozzle head 1, a cleaning assembly rotatably mounted on the fixing frame 5 and used to clean the inner cavity of the nozzle head 1, and a guide block 9 located in the inner cavity of the nozzle body 2 and fixedly mounted on the nozzle head 1 and used to guide and press the fixing frame 5; the cleaning assembly comprises a central shaft 6 rotatably mounted on the fixing frame 5, a spiral blade 7 is provided at the left end of the central shaft 6, and a plurality of centrally symmetrically distributed rotating blades 8 are provided at the right end; the rotating blades 8 are located in the inner cavity of the guide block 9, and a plurality of centrally symmetrically distributed guiding channels 9a corresponding to the rotating blades 8 are provided on the inner cavity side wall of the guide block 9;

[0017] It should be noted that the fixing ring 4 and the nozzle body 2, and the nozzle head 1 and the guide block 9 are fixedly connected by threads; the guide channel 9a is tangentially connected to the inner cavity of the guide block 9; the right end of the guide block 9 is conical.

[0018] Combined with Figures 1 to 3 As shown, the nozzle also includes a nozzle dredging mechanism for dredging the nozzle 1a, and the nozzle dredging mechanism includes a dredging needle 10, which is located on the central axis of the nozzle and can partially move through the nozzle body 2, the guide block 9, and the central axis 6; a limit block 11, which is arranged at the right end of the dredging needle 10; and a compression spring 12, which is arranged at the right end of the dredging needle 10, and its two ends are respectively against the nozzle body 2 and the limit block 11;

[0019] It should be noted that when the nozzle 1a is blocked, it is only necessary to press the limit block 11 so that the unblocking needle 10 is inserted into the nozzle 1a to push out the blockage in the nozzle 1a; after the unblocking needle 10 is inserted into the nozzle 1a, it will gradually retract under the action of the compression spring 12; in actual use, it can be pressed repeatedly several times to ensure that the nozzle 1a is completely unblocked.

[0020] Combined with Figure 1 and 2 As shown, the fixing frame 5 comprises an outer ring 5a, a center ring 5b located on the inner central axis of the outer ring 5a, and a plurality of vortex blades 5c symmetrically distributed and fixed at both ends to the outer ring 5a and the center ring 5b respectively;

[0021] It should be noted that the guide channel 9a, the rotating blade 8, the vortex blade 5c and the spiral blade 7 have the same spiral direction.

[0022] Combined with Figure 1 As shown, the water inlet 3 is provided with a filter screen 3a.

[0023] During operation, the cooling water is filtered through the filter screen 3a and then flows into the inner cavity of the nozzle body 2 from the water inlet 3; then the cooling water is guided by the guide block 9 to flow to each guide channel 9a; after the cooling water flows out from the guide channel 9a, it enters the inner cavity of the guide block 9 and is sprayed to the rotating blade 8 to make it rotate, and then the central axis 6 and the spiral blade 7 also rotate, and the spiral blade 7 continuously scrapes the inner cavity wall of the nozzle head 1; then the cooling water passes through the fixing frame 5 and flows into the inner cavity of the nozzle head 1, and a vortex is gradually formed in the inner cavity of the guide block 9 and the inner cavity of the nozzle head 1; finally, it is sprayed out from the nozzle 1a.

[0024] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A self-cleaning anti-clogging aerosol nozzle for slab continuous casting, characterized in that: The nozzle includes A nozzle head (1), wherein the nozzle head (1) is provided with a nozzle (1a); A nozzle body (2), wherein the lower end of the nozzle body (2) is provided with a water inlet (3) connected to the interior thereof; A fixing ring (4), the fixing ring (4) being sleeved on the nozzle head (1) and used for fixing the nozzle head (1) and the nozzle body (2) together; A nozzle core, the nozzle core being arranged inside the nozzle, comprising a fixing frame (5) mounted in the inner cavity of the nozzle head (1), a cleaning assembly rotatably mounted on the fixing frame (5) and used for cleaning the inner cavity of the nozzle head (1), and a flow guide block (9) located in the inner cavity of the nozzle body (2) and fixedly mounted on the nozzle head (1) and used for guiding and pressing the fixing frame (5); The cleaning assembly comprises a central shaft (6) rotatably mounted on a fixed frame (5); a spiral blade (7) is provided at the left end of the central shaft (6); and a plurality of centrally symmetrically distributed rotating blades (8) are provided at the right end; the rotating blades (8) are located in the inner cavity of a guide block (9); and a plurality of centrally symmetrically distributed guiding channels (9a) are provided on the inner cavity side wall of the guide block (9), the positions of which correspond to the rotating blades (8).

2. The self-cleaning anti-clogging aerosol nozzle for slab continuous casting according to claim 1, characterized in that: The nozzle also includes a nozzle dredging mechanism for dredging the nozzle (1a), the nozzle dredging mechanism including A dredging needle (10), the dredging needle (10) is located on the central axis of the nozzle and can partially move through the nozzle body (2), the guide block (9) and the central axis (6); A limit block (11), wherein the limit block (11) is arranged at the right end of the dredging needle (10); A compression spring (12), wherein the compression spring (12) is arranged at the right end of the dredging needle (10), and its two ends are respectively pressed against the nozzle body (2) and the limit block (11).

3. A self-cleaning anti-clogging aerosol nozzle for slab continuous casting according to claim 1 or 2, characterized in that: The fixing frame (5) comprises an outer ring (5a), a center ring (5b) located on the inner central axis of the outer ring (5a), and a plurality of vortex blades (5c) which are symmetrically distributed and fixed at both ends to the outer ring (5a) and the center ring (5b).

4. A self-cleaning anti-clogging aerosol nozzle for slab continuous casting according to claim 1 or 2, characterized in that: The water inlet (3) is provided with a filter screen (3a).

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