A straightening and leveler machine with a deslagging function and a deslagging method thereof

Abstract

The application discloses a strand straightening machine with a slag flushing function and a slag flushing method thereof, and belongs to the field of steelmaking continuous casting. In order to solve the problem that the iron oxide skin is difficult to clean when the existing strand straightening machine works, the strand straightening machine with the slag flushing function comprises an upper and lower arranged rack (1) and a base (2), and further comprises a slag flushing groove (3) and a slag flushing water pipe (4). The slag flushing water pipe (4) can supply the slag flushing water into the slag flushing groove (3), and the slag flushing groove (3) is located in the base (2). The slag flushing groove is arranged on the base of the strand straightening machine with the slag flushing function, and the slag flushing water pipe can supply the slag flushing water into the slag flushing groove, so that the iron oxide skin accumulation is avoided, the labor intensity of workers is reduced, and the operation rate is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of steelmaking continuous casting, in particular to a pull-straightening machine with a slag flushing function and a slag flushing method of the pull-straightening machine with the slag flushing function. BACKGROUND

[0002] When a large round billet continuous casting machine is in production, a large amount of iron oxide scale is generated on the surface of the casting billet due to the large cross section of the casting billet and the low production pulling speed. Before the casting billet enters the pull-straightening machine, the casting billet is basically not subjected to pressure, and the iron oxide scale covers the surface of the casting billet. When the casting billet enters the pull-straightening machine area, the pull-straightening machine presses down and straightens the casting billet, causing a large amount of iron oxide scale on the surface of the casting billet to fall off in the pull-straightening machine area, and the iron oxide scale falls on the base of the pull-straightening machine. Due to the large cross section of the casting billet, the large amount of iron oxide scale and the relatively large size of part of the iron oxide scale, the iron oxide scale will accumulate more and more on the base of the pull-straightening machine, and the iron oxide scale will gradually accumulate at the running track of the casting billet, affecting production, and the iron oxide scale needs to be cleaned by workers. Due to the dense equipment in the pull-straightening machine area, the cleaning is difficult, time-consuming and labor-intensive, and affects the production operation rate. Figure 1 and Figure 2 as shown. SUMMARY

[0003] In order to solve the problem of difficult cleaning of the iron oxide scale falling off, the present application provides a pull-straightening machine with a slag flushing function and a slag flushing method thereof. A slag flushing groove is arranged on the base of the pull-straightening machine with the slag flushing function, and a slag flushing water pipe can supply slag flushing water into the slag flushing groove, thereby avoiding the accumulation of iron oxide scale, reducing the labor intensity of workers, and improving the operation rate.

[0004] The technical solution adopted by the embodiment of the present application to solve the technical problems is as follows:

[0005] A pull-straightening machine with a slag flushing function, comprising an upper and lower rack and a base, the base comprising a left support structure, a connecting piece and a right support structure in sequence from left to right, the pull-straightening machine with the slag flushing function further comprising a slag flushing groove and a slag flushing water pipe, the slag flushing water pipe being capable of supplying slag flushing water into the slag flushing groove, the slag flushing groove extending along the direction of the billet outlet, the opening of the slag flushing groove facing upward along the left-right direction, and the slag flushing groove being located between the left support structure and the right support structure along the up-down direction; along the up-down direction, the slag flushing groove is located between the rack and the connecting piece.

[0006] A slag flushing method of a pull-straightening machine with a slag flushing function, the pull-straightening machine with the slag flushing function being the pull-straightening machine with the slag flushing function described above, the slag flushing method of the pull-straightening machine with the slag flushing function comprising the following steps: the slag flushing water pipe supplies slag flushing water into the slag flushing groove to flush away the iron oxide scale in the slag flushing groove.

[0007] The beneficial effect of the embodiment of the present application is that the slag flushing groove and the slag flushing water pipe on the base of the straightening and leveling machine avoid the accumulation of iron oxide scale on the base of the straightening and leveling machine, reduce the labor intensity of workers, and improve the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0008] The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the application and are incorporated herein in conjunction with the description of the application. The drawings are not to be considered as part of the specification, and the explanation of the application is used to explain the application.

[0009] Figure 1 is a schematic view of the base of the straightening and leveling machine in the prior art.

[0010] Figure 2 is a schematic view of the base of the straightening and leveling machine in the prior art. Figure 1 is a schematic view of the base of the straightening and leveling machine in the prior art.

[0011] Figure 3 is a schematic view of the base of the straightening and leveling machine in the prior art.

[0012] Figure 4 is a schematic view of the base of the straightening and leveling machine in the prior art. Figure 3 is a schematic view of the base of the straightening and leveling machine in the prior art.

[0013] Figure 5 is a schematic view of the base of the straightening and leveling machine in the prior art.

[0014] Figure 6 is a schematic view of the base of the straightening and leveling machine in the prior art. Figure 3 is a schematic view of the base of the straightening and leveling machine in the prior art.

[0015] Figure 7 is a schematic view of the base of the straightening and leveling machine in the prior art. Figure 4 is a schematic view of the base of the straightening and leveling machine in the prior art.

[0016] Figure 8 is a schematic view of the base of the straightening and leveling machine in the prior art. Figure 6 is a schematic view of the base of the straightening and leveling machine in the prior art.

[0017] Figure 9 is a schematic view of the base of the straightening and leveling machine in the prior art.

[0018] The reference signs are explained as follows:

[0019] 1, rack; 2, base; 3, slag flushing groove; 4, slag flushing water pipe;

[0020] 21, left support structure; 22, connecting piece; 23, right support structure; 24, fixing bolt; 25, water receiving plate;

[0021] 31, groove body; 32, outer connecting piece; 33, inner connecting piece;

[0022] 41, main slag flushing water pipe; 42, slag flushing water branch pipe; 43, slag flushing head; 44, adjusting valve;

[0023] 211. Upper left flat panel; 212. Left vertical panel; 213. Lower left flat panel;

[0024] 231. Upper right flat panel; 232. Right vertical panel; 233. Lower right flat panel;

[0025] 311. Left side plate; 312. Bottom plate; 313. Right side plate; 314. Slag flushing channel. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] For ease of understanding and description, the following description of the present invention uses absolute positional relationships. Unless otherwise specified, the directional term "above" indicates... Figure 4 The direction above, the directional word "down" indicates Figure 4 The lower side of the middle, the directional word "left" indicates Figure 4 The left side of the direction, the directional word "right" indicates Figure 4 The right-hand direction in the text, the directional word "front" indicates perpendicular to. Figure 4 The direction of the paper and pointing inwards from the paper; the directional word "back" indicates perpendicular to the paper. Figure 4 The orientation of the paper is directed towards the outer edge of the paper. This invention is described from the perspective of a reader or user, but the aforementioned directional terms should not be construed as limiting the scope of protection of this invention. Regarding the dimensions and angles of the components, those skilled in the art can determine them specifically according to actual needs.

[0028] Please see Figures 3 to 4 As shown, the present invention provides a straightening machine with slag flushing function, including a frame 1 and a base 2 connected vertically. The base 2 includes a left support structure 21, a connector 22 and a right support structure 23 connected from left to right. The straightening machine with slag flushing function also includes a slag flushing trough 3 and a slag flushing water pipe 4. The slag flushing water pipe 4 can supply slag flushing water into the slag flushing trough 3. The slag flushing trough 3 extends along the billet discharge direction C, and the opening of the slag flushing trough 3 faces upward. In the left-right direction, the slag flushing trough 3 is located between the left support structure 21 and the right support structure 23; in the up-down direction, the slag flushing trough 3 is located between the frame 1 and the connector 22.

[0029] The base 2 of the straightening machine with slag flushing function is equipped with a slag flushing trough 3 and a slag flushing water pipe 4. Most of the iron oxide scale generated when the straightening machine is working will fall into the slag flushing trough 3. The slag flushing water pipe 4 can supply slag flushing water into the slag flushing trough 3. The slag flushing water can wash away the iron oxide scale in the slag flushing trough 3, thereby avoiding the accumulation of iron oxide scale, reducing the labor intensity of workers, and improving the working efficiency.

[0030] Referring to Figure 4 As shown in the figure, the left support structure 21 contains the upper left plate 211 and the lower left plate 213 arranged in an up-down interval, and the upper left plate 211 and the lower left plate 213 are connected and fixed by two left vertical plates 212. The right support structure 23 contains the upper right plate 231 and the lower right plate 233 arranged in an up-down interval, and the upper right plate 231 and the lower right plate 233 are connected and fixed by two right vertical plates 232.

[0031] Referring to Figures 3 to 5 As shown in the figure, the base 2 is used to support the rack 1, the left support structure 21 and the right support structure 23 extend along the direction B of the blank, the left support structure 21 and the right support structure 23 are left-right symmetrical and mirror images of each other, the connecting piece 22 is a tubular structure, the connecting piece 22 is connected and fixed with the two left vertical plates 212, and the connecting piece 22 is also connected and fixed with the two right vertical plates 232, and the connecting piece 22 is connected with the left support structure 21 and the right support structure 23 in the same way. The base 2 is not only used to support the rack 1, but also used to support the slag flushing groove 3.

[0032] Referring to Figures 6 to 7 As shown in the figure, the slag flushing groove 3 contains the groove body 31 and the outer connecting piece 32, the cross section of the groove body 31 is an inverted isosceles trapezoidal structure, the groove body 31 contains the slag flushing flow channel 314, the cross section of the slag flushing flow channel 314 is an inverted isosceles trapezoidal structure, that is, the width of the upper end of the slag flushing flow channel 314 is greater than the width of the lower end of the slag flushing flow channel 314, and the groove body 31 contains the left side plate 311, the bottom plate 312 and the right side plate 313 connected in order from left to right. The material of the groove body 31 is 304 stainless steel, the oxide scale is not easy to adhere to the stainless steel plate, and the accumulation of the oxide scale on it is avoided.

[0033] The upper end of the groove body 31 is higher than the upper left plate 211, the outer connecting piece 32 is fixed to the outer side of the left side plate 311 and the outer side of the right side plate 313, and the outer side of the left side plate 311 and the outer side of the right side plate 313 are provided with fixing bolts 24 and water receiving plates 25. The fixing bolt 24 is used to connect and fix the rack 1 and the base 2, after the rack 1 is placed on the base 2, the internal cooling water channel of the stretch leveler can be automatically connected with the water receiving plate 25. The outer connecting piece 32 is an L-shaped structure, the outer connecting piece 32 contains the upper vertical plate and the lower plate connected in an up-down manner, and the outer connecting piece 32 is connected and fixed with the upper left plate 211 and the upper right plate 231. The bottom plate 312 is parallel to the axis of the connecting piece 22, the bottom plate 312 is in contact with the connecting piece 22, and the connecting piece 22 can also support the groove body 31.

[0034] A plurality of outer connecting pieces 32 are arranged on the left and right sides of the tank body 31 and are arranged at intervals along the extension direction of the slag flushing channel 3. The upper vertical plate of the left outer connecting piece 32 is welded and fixed to the left side plate 311, and the upper vertical plate of the right outer connecting piece 32 is welded and fixed to the right side plate 313. The lower horizontal plate of the left outer connecting piece 32 is fixed to the left upper horizontal plate 211 by bolting, and the lower horizontal plate of the right outer connecting piece 32 is fixed to the right upper horizontal plate 231 by bolting.

[0035] In order to better collect and impact the iron oxide scale, the depth of the slag flushing channel 314 can be 800-900 mm, and the distance between the connecting piece 22 and the left upper horizontal plate 211 in the vertical direction can be 510-550 mm. The slag flushing channel 3 can be designed in sections, that is, the slag flushing channel 3 contains a plurality of slag flushing channel sections, and the plurality of slag flushing channel sections are arranged along the extension direction of the slag flushing channel 3. This design facilitates transportation, and the plurality of slag flushing channel sections are correspondingly welded together end to end along the extension direction of the slag flushing channel 3 on site to form the slag flushing channel 3. Then, the slag flushing channel 3 (the outer connecting pieces 32 on the left and right sides) is fixed to the base 2 by bolting.

[0036] Please refer to Figures 6 to 7 As shown in the figure, the slag flushing channel 3 also contains a plurality of inner connecting pieces 33, and the plurality of inner connecting pieces 33 are arranged at intervals along the extension direction of the slag flushing channel 3. The inner connecting pieces 33 are in the form of a rod, the inner side of the left side plate 311 and the inner side of the right side plate 313 are connected by the inner connecting pieces 33, the inner connecting pieces 33 are located at the upper part of the slag flushing channel 314, and the axis of the inner connecting pieces 33 is arranged horizontally above and below the bottom plate 312. The arrangement of a plurality of inner connecting pieces 33 can improve the overall strength of the tank body 31 and prevent the tank body 31 from deforming.

[0037] Please refer to Figures 8 to 9 As shown in the figure, the slag flushing water pipe 4 contains a slag flushing water main pipe 41 and a plurality of slag flushing water branch pipes 42, one end of the slag flushing water branch pipe 42 is connected to the slag flushing water main pipe 41, and the other end of the slag flushing water branch pipe 42 is provided with a slag flushing head 43. The slag flushing water main pipe 41 extends along the extension direction of the slag flushing channel 3, or the slag flushing water main pipe 41 extends in the front-rear direction. The pipe diameter of the slag flushing water main pipe 41 can be DN80-DN100.

[0038] The slag flushing head 43 is located in the slag flushing channel 314, the slag flushing head 43 is in the form of a flat structure, the outlet height t of the slag flushing head 43 is 10-15 mm, the outlet height direction of the slag flushing head 43 is the up-down direction, the outlet width of the slag flushing head 43 is 40-60 mm, and the outlet width direction of the slag flushing head 43 is the left-right direction.

[0039] Along the extension direction of the slag flushing groove 3 (also the extension direction of the groove body 31), the slag flushing water branch pipe 42 is located at the inlet end and the middle part of the slag flushing groove 3, and correspondingly, the slag flushing head 43 is also located at the inlet end and the middle part of the slag flushing groove 3. The outlet of the slag flushing head 43 faces the bottom plate 312, the spraying direction of the slag flushing head 43 is substantially the same as the extension direction of the slag flushing groove 3, the included angle d between the spraying direction of the slag flushing head 43 and the bottom plate 312 is 20°-30°, and the distance s between the slag flushing head 43 and the bottom plate 312 is 120mm-190mm. The above arrangement can ensure that the slag flushing head 43 has good impact force.

[0040] The adjusting valve 44 is arranged on the slag flushing water branch pipe 42, the water pressure of the slag flushing water sprayed by the slag flushing head 43 is about 0.5Mpa, and the adjusting valve 44 is used to adjust the flow of the slag flushing water sprayed by the slag flushing head 43. Suitable flushing point and water volume can flush away the iron oxide scale, and avoid the accumulation of the iron oxide scale in the slag flushing groove 3.

[0041] The following introduces a slag flushing method of the tension leveler with the slag flushing function, the tension leveler with the slag flushing function is the tension leveler with the slag flushing function described above, and the slag flushing method of the tension leveler with the slag flushing function comprises the following steps: the slag flushing water pipe 4 supplies the slag flushing water into the slag flushing groove 3 to flush away the iron oxide scale in the slag flushing groove 3. The accumulation of the iron oxide scale on the base of the tension leveler is avoided. The labor intensity of workers is reduced, and the production efficiency is improved.

[0042] The following introduces the working process of the tension leveler with the slag flushing function.

[0043] The large round billet continuous casting machine produces large round billets with a section of Φ1000mm-Φ1300mm. During production, a large amount of iron oxide scale is generated on the surface of the cast billet due to the large section of the cast billet and the low production speed. Before the cast billet enters the tension leveler with the slag flushing function, the cast billet is basically not subjected to pressure, and the iron oxide scale covers the surface of the cast billet. When the cast billet enters the area where the tension leveler with the slag flushing function is located, the cast billet is pressed down and straightened by the tension leveler, which causes a large amount of iron oxide scale on the surface of the cast billet to fall off in the area of the tension leveler. The iron oxide scale falls into the slag flushing groove 3 on the base 2 of the tension leveler. The lower part of the rack 1 of the tension leveler is provided with continuous slag flushing grooves 3. The slope of the slag flushing groove 3 changes along with the change of the base 2 of the tension leveler. The slag flushing water pipe 4 supplies the slag flushing water into the slag flushing groove 3 to flush away the iron oxide scale in the slag flushing groove 3.

[0044] The above is only a specific embodiment of the present application, which cannot limit the scope of the application. Therefore, the replacement of equivalent components or the equivalent changes and modifications made within the scope of the patent protection of the present application should still belong to the scope covered by the present patent. In addition, the technical features in the present application can be freely combined with each other, and the technical features can be freely combined with each other.

Claims

1. A straightening machine with slag flushing function, comprising a frame (1) and a base (2) arranged vertically, the base (2) comprising a left support structure (21), a connector (22) and a right support structure (23) arranged from left to right, characterized in that, The straightening machine with slag flushing function also includes a slag flushing trough (3) and a slag flushing water pipe (4). The slag flushing water pipe (4) can supply slag flushing water into the slag flushing trough (3). The slag flushing trough (3) extends along the billet discharge direction. The opening of the slag flushing trough (3) faces upward. In the left-right direction, the slag flushing trough (3) is located between the left support structure (21) and the right support structure (23). In the up-down direction, the slag flushing trough (3) is located between the frame (1) and the connector (22). The slag flushing trough (3) includes a trough body (31) and an external connector (32). The cross-section of the trough body (31) is an inverted isosceles trapezoidal structure. The trough body (31) includes a left side plate (311), a bottom plate (312), and a right side plate (313) connected from left to right. The trough body (31) contains a slag flushing channel (314). The slag flushing trough (3) contains multiple slag flushing trough sections, which are arranged along the extension direction of the slag flushing trough (3); The upper end of the tank (31) is higher than the upper left plate (211). The external connector (32) is fixed to the outside of the left side plate (311) and the outside of the right side plate (313). The external connector (32) has an L-shaped structure. The external connector (32) is connected and fixed to both the upper left plate (211) and the upper right plate (231). The bottom plate (312) is in contact with the connector (22). The flushing water pipe (4) includes a main flushing water pipe (41) and a branch flushing water pipe (42). One end of the branch flushing water pipe (42) is connected to the main flushing water pipe (41), and the other end of the branch flushing water pipe (42) is equipped with a flushing head (43). The slag flushing head (43) is located inside the slag flushing channel (314). The slag flushing head (43) has a flat structure. The outlet height of the slag flushing head (43) is 10mm-15mm. The outlet height direction of the slag flushing head (43) is up and down. The outlet width of the slag flushing head (43) is 40mm-60mm. The outlet width direction of the slag flushing head (43) is left and right.

2. The straightening machine with slag flushing function according to claim 1, characterized in that, The left support structure (21) includes an upper left plate (211) and a lower left plate (213) spaced apart vertically. The upper left plate (211) and the lower left plate (213) are connected and fixed by two left upright plates (212). The right support structure (23) includes an upper right plate (231) and a lower right plate (233) spaced apart vertically. The upper right plate (231) and the lower right plate (233) are connected and fixed by two right upright plates (232).

3. The straightening machine with slag flushing function according to claim 2, characterized in that, The left support structure (21) and the right support structure (23) are symmetrical and mirror images of each other. The connector (22) is a tubular structure and the connection method of the connector (22) is the same as that of the left support structure (21) and the right support structure (23).

4. The straightening machine with slag flushing function according to claim 1, characterized in that, The slag flushing trough (3) also contains an internal connector (33), which is rod-shaped. The left side plate (311) and the right side plate (313) are connected by the internal connector (33).

5. The straightening machine with slag flushing function according to claim 1, characterized in that, A regulating valve (44) is installed on the slag flushing water branch pipe (42). The slag flushing head (43) is located at the inlet end and middle of the slag flushing tank (3). The outlet of the slag flushing head (43) faces the bottom plate (312). The angle between the spray direction of the slag flushing head (43) and the bottom plate (312) is 20°-30°. The distance between the slag flushing head (43) and the bottom plate (312) is 120mm-190mm.

6. A slag flushing method for a tension leveling machine with slag flushing function, characterized in that, The straightening machine with slag flushing function is the straightening machine with slag flushing function as described in claim 1, and the slag flushing method of the straightening machine with slag flushing function includes the following steps: The flushing water pipe (4) supplies flushing water to the flushing tank (3) to flush away the iron oxide scale in the flushing tank (3).

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