Anti-nodulation hot rolling guide and guard device

Abstract

The utility model relates to an anti-nodulation hot rolling guide device which comprises a guide, a lining plate and a cooling water pipe, the lining plate is correspondingly and vertically arranged on the vertical surface of the inner side of the guide; the cooling water pipe is correspondingly arranged on the top surface of the inner side of the guide; a plurality of strip-shaped water spraying openings are evenly distributed in the pipe wall of one side of the cooling water pipe, and the water spraying openings correspond to the lining plate in direction. The device can play a huge role in the process of producing silicon steel in a hot-rolled strip factory, can effectively reduce the probability that nodulation foreign matters are adhered to the surface of the lining plate, and reduces the hot stop time for standby channel inspection and cleaning of nodules on the surface of the lining plate; the surface foreign matter press-in defect of the hot-rolled steel plate is greatly reduced; and meanwhile, the guide is small in modification, low in investment, safe and effective, improves the unit operation efficiency, reduces the risk that foreign matters on the surface of a product are pressed into defects, and improves the qualification rate of hot-rolled silicon steel products.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steel rolling mechanical equipment technical field especially relates to a hot rolling guide and guard device of anti nodule. BACKGROUND

[0002] In the production of high-end non-oriented silicon steel grade, the strip steel edge of the grade is easy to contact with the guide and guard lining plate in the finishing area to produce scratches, and part of the nodules is adhered to the lining plate, so that the production efficiency is affected and there is a certain safety hazard during the cleaning process. However, if the cleaning is not timely, the foreign matter is easy to fall on the surface of the steel plate when the rolling mill vibrates or the next steel coil recontacts the part, and the surface foreign matter is pressed into the defect by the rolling mill, and the foreign matter is separated from the steel plate after the rolling of the cold rolling mill in the next process, and holes or rolling leakage defects are formed on the surface, which is an unacceptable defect and must be cut off before delivery, seriously affecting the product quality and production efficiency, resulting in a large number of downgraded products or direct rejection. SUMMARY

[0003] In view of the above problems, the utility model discloses a hot rolling guide and guard device of anti nodule can effectively prevent the nodules from adhering to the surface of the finishing guide and guard lining plate, reduce the heat stop time consumed by process channel inspection and nodule cleaning, and blow away the foreign matter falling on the surface of the steel plate in time to avoid product foreign matter pressing caused by untimely cleaning.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] The hot rolling guide and guard device of anti nodule comprises a guide, a lining plate and a cooling water pipe, the lining plate is vertically arranged on the inner side of the guide, the cooling water pipe is arranged on the top surface of the inner side of the guide, the one side wall of the cooling water pipe is uniformly provided with a plurality of strip-shaped water outlets, and the water outlets correspond to the direction of the lining plate.

[0006] Further, the middle part of the lining plate near the roller side is provided with a compressed air blowing port.

[0007] Further, the surface of the compressed air blowing port is smoothly transitioned.

[0008] Further, the lining plate is a silicon steel lining plate.

[0009] Further, the included angle between the water outlet and the lining plate is 45 degrees.

[0010] Further, the lining plate and the guide vertical surface are connected through fixing screws.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] This invention plays a significant role in the production of silicon steel in hot-rolled strip mills. It effectively reduces the probability of foreign matter adhering to the liner surface, thus reducing downtime caused by waiting for inspection channels and cleaning of foreign matter on the liner surface. It also significantly reduces defects caused by foreign matter pressing into the surface of hot-rolled steel plates. At the same time, the guide requires minimal modification, low investment, and is safe and effective, improving the unit's operating efficiency and reducing the risk of foreign matter pressing into the product surface, thereby increasing the pass rate of hot-rolled silicon steel products. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of a hot-rolled guide device for preventing nodule formation proposed in this utility model.

[0014] Figure 2 for Figure 1 A schematic diagram of the side view structure;

[0015] Figure 3 for Figure 2 A side view of the cooling water pipe structure.

[0016] In the attached drawings, the following symbols are used: 1-Guide; 2-Liner; 3-Cooling water pipe; 31-Strip water nozzle; 4-Fixing screw; 5-Compressed air purging port. Detailed Implementation

[0017] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] It should be noted that in the description of this utility model, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not mean that the device or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0019] See appendix Figures 1-3 This paper presents a specific structure of an embodiment of the hot rolling guide device for preventing nodule formation proposed in this utility model. In use, the device is installed on the left and right sides of stands F5, F6, and F7, which are located at the rear of the hot rolling finishing mill.

[0020] Taking the left side as an example, the device includes a guide 1, a liner 2, and a cooling water pipe 3; the guide 1 has a concave structure; the liner 2 is vertically arranged on the inner side of the guide 1 along the direction of steel plate movement; in this embodiment, the liner 2 is a silicon steel liner, which is detachably installed on the inner side of the guide 1 by fixing screws 4.

[0021] The cooling water pipe 3 is fixedly installed on the top surface of the inner side of the guide 1 along the direction of movement of the steel plate. Several strip-shaped spray nozzles 31 are evenly distributed on one side of the cooling water pipe 3, and the spray nozzles 31 correspond to the direction of the liner plate 2, with the spray direction forming a 45° angle with the liner plate. The cooling water pipe 3 is used to spray water onto the liner plate 2 in real time to reduce the viscosity of the high-temperature nodule when it comes into contact with the liner plate 2. The water spray pressure must be appropriate, ensuring that the water flows slowly down the surface of the liner plate 2. Excessive pressure will cause water to splash onto the steel plate surface, failing to prevent nodule formation.

[0022] In this embodiment, a compressed air purging port 5 is provided in the middle of the liner plate 2 near the roll side on one side (left or right) of the frame. Compressed air is connected to it to purge fallen foreign objects and blow them away from the surface of the steel plate, preventing foreign objects from being brought into the rolling mill and causing foreign object pressing defects. The compressed air purging port 5 should be as smooth as possible to prevent it from rubbing against the steel plate.

[0023] Matters not covered in this utility model are common knowledge.

[0024] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A hot-rolled guide device for preventing nodule formation, characterized in that: The device includes a guide, a liner, and a cooling water pipe; the liner is vertically arranged on the inner side of the guide; the cooling water pipe is arranged on the top side of the inner side of the guide; a number of strip-shaped water nozzles are evenly distributed on one side of the cooling water pipe, and the water nozzles correspond to the direction of the liner.

2. The hot-rolled guide device for preventing nodule formation according to claim 1, characterized in that: A compressed air purging port is provided in the middle of the liner plate near the roll side.

3. The hot-rolled guide device for preventing nodule formation according to claim 2, characterized in that: The surface of the compressed air purge port has a smooth transition.

4. The hot-rolled guide device for preventing nodule formation according to claim 1, characterized in that: The liner is a silicon steel liner.

5. The hot-rolled guide device for preventing nodule formation according to claim 1, characterized in that: The angle between the water nozzle and the liner is 45°.

6. The hot-rolled guide device for preventing nodule formation according to claim 1, characterized in that: The liner is connected to the guide facade by fixing screws.

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