A purging water device for hot-rolled lower stepped pads

Abstract

This utility model discloses a purging water device for hot-rolled lower stepped pads, belonging to the field of hot-rolled purging technology. The hot-rolled lower stepped pad has a left-side protective cover and a right-side protective cover on both sides. The purging water device includes: a left-side rigid pipe installed on the right edge of the left-side protective cover, with M left-side nozzles mounted on the left-side rigid pipe; a right-side rigid pipe installed on the left edge of the right-side protective cover, with N right-side nozzles mounted on the right-side rigid pipe; and a controller for controlling the working state of the left and right-side nozzles. The left-side rigid pipe is connected to a cooling water pipe via a left-side flexible hose; the right-side nozzles are connected to a cooling water pipe via a right-side flexible hose; M and N are both natural numbers greater than 0. This utility model uses nozzles to purge the stepped pad, allowing iron oxide powder on the stepped pad to be blown away in a timely manner, resulting in more precise adjustment of the stepped pad's elevation.

Description

Technical Field

[0001] This utility model belongs to the field of hot rolling purging technology, specifically relating to a purging water device for hot rolling lower stepped pads. Background Technology

[0002] In the production of hot-rolled strip steel, the finishing mill's lower step pad plays a crucial role. It is a key piece of equipment used to compensate for wear on the work rolls and support rolls, and to adjust the elevation of the work roll surface in the finishing mill. The step pad is designed with multiple positions. In actual use, when one position is tightly engaged with the lower support roll, the others are inevitably exposed to the external environment. Due to the large amount of iron powder and dust generated during the rolling process, these substances continuously adhere to the surface of the step pad exposed to the air. Over time, this iron powder and dust gradually accumulate, forming a thick layer. When roll replacement is required, operators must adjust the step pad positions to compensate for the wear on the work rolls and support rolls. However, if this accumulated iron powder is not cleaned in time, it will create pressure between the support surface of the support roll and the step pad, preventing the mill from being calibrated smoothly. Even if the calibration process is barely completed, the presence of this iron powder will negatively affect the rolling condition during the actual rolling process, and in severe cases, may even lead to production accidents. Utility Model Content

[0003] The purpose of this utility model is to meet practical needs and provide a purging water device for hot-rolled stepped pads. By adding purging water devices on both sides of the stepped pad, and connecting the rigid pipes to the protective covers on both sides of the stepped pad, water is sprayed onto the stepped pad, so that iron powder and dust cannot stay on the stepped pad, making the surface of the stepped pad cleaner and the precision more accurate.

[0004] To achieve the above technical objectives, the purpose of this utility model is to provide a purging water device for hot-rolled lower stepped pads, wherein a left protective cover and a right protective cover are respectively provided on both sides of the hot-rolled lower stepped pad; the purging water device includes:

[0005] A left-side rigid tube is installed on the right edge of the left-side shield, and M left-side nozzles are installed on the left-side rigid tube;

[0006] A right-side rigid tube is installed on the left edge of the right-side protective cover, and N right-side nozzles are installed on the right-side rigid tube;

[0007] A controller for controlling the working status of the left and right nozzles; wherein: the left rigid pipe is connected to the cooling water pipe through the left flexible pipe; the right nozzle is connected to the cooling water pipe through the right flexible pipe; M and N are both natural numbers greater than 0.

[0008] Preferably, in order to achieve unified control of the nozzles on the two rigid pipes, a solenoid valve is installed on the left flexible hose and / or the right flexible hose, and the controller is connected to the solenoid valve.

[0009] Preferably, in order to achieve independent control of each nozzle on the two rigid pipes, a solenoid valve is installed at the water inlet of the left nozzle and / or the right nozzle, and the controller is connected to the solenoid valve.

[0010] Preferably, M and N are both natural numbers greater than 1, M left nozzles are installed on the left rigid tube at equal intervals, and N right nozzles are installed on the right rigid tube at equal intervals.

[0011] Preferably, the left nozzle and / or the right nozzle are in the shape of a duckbill.

[0012] Preferably, a booster pump is installed on the left and / or right hoses.

[0013] Preferably, the water pressure in the cooling water pipe is 1 MPa.

[0014] Compared with the prior art, the advantages and positive effects of this application are:

[0015] This invention addresses a common problem in industrial production: iron powder and dust adhering to the stepped pads in rolling mills. This problem leads to inaccurate rolling mill parameters, hindering the mill calibration process. Even after a series of calibration operations, when the mill appears ready, the iron powder and dust adhering to the stepped pad surface can still negatively impact the rolling process during actual steel rolling. In some cases, this impact can be quite severe, potentially even leading to production accidents.

[0016] To address the aforementioned problems, this invention proposes an innovative solution. Specifically, a water-blowing device is installed on both sides of the stepped pad. The ingenuity of this design lies in its ability to continuously clean the stepped pad exposed to air during the rolling process. This prevents iron powder and dust from adhering to the surface of the stepped pad, thus ensuring the precision and accuracy of adjusting the stepped pad's position.

[0017] By adding a purging water device, this invention effectively avoids inaccurate elevation and difficulties in the calibration process caused by surface contamination of the stepped pad. Furthermore, this innovative design significantly increases the service life of the stepped pad and reduces downtime due to stepped pad failure, thereby improving the overall operating efficiency and production safety of the rolling mill. Attached Figure Description

[0018] 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.

[0019] Figure 1 This shows a front view of the purging water device for hot-rolled lower stepped pads provided in an embodiment of the present invention;

[0020] Figure 2 A top view of the left protective cover and the left rigid tube portion in an embodiment of this utility model is shown.

[0021] Among them: 1. Left side shield; 2. Right side shield; 2-1. Left side rigid pipe; 2-2. Right side rigid pipe; 3-1. Left side nozzle; 3-2. Right side nozzle; 4. Hot-rolled lower step pad; 5. Cooling water pipe. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example

[0026] like Figure 1 and Figure 2 As shown, this utility model provides a purging water device for a hot-rolled lower stepped pad, wherein a left protective cover 1 and a right protective cover 2 are respectively provided on both sides of the hot-rolled lower stepped pad 4; the purging water device includes:

[0027] A left-side rigid tube 2-1 is installed on the right edge of the left-side protective cover 1, and M left-side nozzles 3-1 are installed on the left-side rigid tube 2-1; M is a natural number greater than 0; for example... Figure 2 As shown, the left rigid tube 2-1 is parallel to the right edge of the left protective cover 1;

[0028] A right rigid tube 2-2 is installed on the left edge of the right protective cover 2, and N right nozzles 3-2 are installed on the right rigid tube 2-2; N is a natural number greater than 0; similarly, the right rigid tube 2-2 is parallel to the left edge of the right protective cover 2.

[0029] A controller for controlling the working status of the left nozzle 3-1 and the right nozzle 3-2; wherein: the left rigid pipe 2-1 is connected to the cooling water pipe 5 through the left flexible pipe 1-1; the right nozzle 3-2 is connected to the cooling water pipe 5 through the right flexible pipe 1-2;

[0030] In one specific embodiment, solenoid valve devices are designed to be installed at appropriate locations on the left hose 1-1 and / or the right hose 1-2. These solenoid valve devices are configured to open or close in response to signals from a controller, thereby controlling the flow of fluid. The controller is a control unit connected to the solenoid valve devices, responsible for sending control signals to regulate the on / off state of the solenoid valves. It is worth noting that both the controller and the solenoid valve devices are commercially available; users do not need to design or manufacture these components themselves, but can directly purchase ready-made products and assemble them according to the instruction manual.

[0031] In another specific embodiment, solenoid valve devices are installed at the inlets of the left nozzle 3-1 and / or the right nozzle 3-2. These solenoid valve devices are designed to control the opening and closing of the water flow as needed. Furthermore, a controller unit is configured to connect to these solenoid valves for precise control and management. This configuration enables intelligent control of the nozzle water flow, thereby improving spraying efficiency and conserving water resources.

[0032] In one specific embodiment, M and N represent natural numbers greater than 1, used to describe specific structural features. Specifically, M left-side nozzles 3-1 are evenly installed on the left-side rigid pipe 2-1, designed with equal spacing to ensure uniformity and efficiency of spraying. Similarly, N right-side nozzles 3-2 are also evenly installed on the right-side rigid pipe 2-2, also following the principle of equal spacing to achieve a similar spraying effect to the left-side nozzles. This design allows the entire system to maintain a consistent spray intensity and coverage during liquid spraying, thereby improving overall efficiency and performance.

[0033] In one specific embodiment, it is particularly noted that the left nozzle 3-1 and / or the right nozzle 3-2 are designed with a special structure having a flat-billed duck shape.

[0034] In addition, booster pumps are equipped on the left hose 1-1 and / or the right hose 1-2. This design can effectively increase the liquid injection pressure, thereby achieving a better injection effect.

[0035] In cooling water pipe 5, the water pressure is precisely controlled at 1MPa. This pressure level ensures the efficient operation of the cooling system while preventing damage to system components due to excessive pressure.

[0036] In the hot-rolled strip steel production process, the selection of the purging water device is crucial to ensure the accuracy of the step pads without affecting their adjustment. In the above embodiment, a metal hose can be selected. This device is continuously open during the rolling process to ensure the accuracy of the step pads. This significantly reduces the possibility of step pad damage, thereby improving production efficiency. The choice of a metal hose makes the purging water device more durable, able to withstand high-temperature and high-pressure environments, and ensures a stable supply of purging water. This device design not only improves production efficiency but also reduces maintenance costs, as the durability of the metal hose greatly reduces the frequency of replacement. In summary, this purging water device using a metal hose plays a key role in ensuring the accuracy of the step pads, reducing the possibility of damage, and improving production efficiency in the hot-rolled strip steel production process.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A kind of hot rolling down ladder pad uses purging water device, the left side shield (1) and right side shield (2) are respectively arranged with left side and right side of hot rolling down ladder pad (4);Its characterized in that, The purging water device includes: A left hard tube (2-1) is installed on the right edge of the left side shield (1), and M left nozzles (3-1) are installed on the left hard tube (2-1). A right-side rigid tube (2-2) is installed on the left edge of the right-side protective cover (2), and N right-side nozzles (3-2) are installed on the right-side rigid tube (2-2). A controller for controlling the working state of the left nozzle (3-1) and the right nozzle (3-2); wherein: the left rigid pipe (2-1) is connected to the cooling water pipe (5) through the left flexible pipe (1-1); the right nozzle (3-2) is connected to the cooling water pipe (5) through the right flexible pipe (1-2); M and N are both natural numbers greater than 0.

2. The purging water device for hot-rolled lower stepped pads according to claim 1, characterized in that, Solenoid valves are installed on the left hose (1-1) and / or the right hose (1-2), and the controller is connected to the solenoid valves.

3. The purging water device for hot-rolled lower stepped pads according to claim 1, characterized in that, The inlets of the left nozzle (3-1) and / or the right nozzle (3-2) are equipped with solenoid valves, and the controller is connected to the solenoid valves.

4. The purging water device for hot-rolled lower stepped pads according to claim 1, characterized in that, M and N are both natural numbers greater than 1. M left nozzles (3-1) are installed on the left rigid tube (2-1) with equal spacing, and N right nozzles (3-2) are installed on the right rigid tube (2-2) with equal spacing.

5. The purging water device for hot-rolled lower stepped pads according to claim 1, characterized in that, The left nozzle (3-1) and / or the right nozzle (3-2) are in the shape of a flat-billed duck.

6. The purging water device for hot-rolled lower stepped pads according to claim 1, characterized in that, A booster pump is installed on the left hose (1-1) and / or the right hose (1-2).

7. The purging water device for hot-rolled lower stepped pads according to claim 1, characterized in that, The water pressure in the cooling water pipe (5) is 1 MPa.

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