Finishing mill guide one-way anti-blocking type cooling device

Abstract

The utility model relates to a guide and guard one-way anti-blocking type cooling device of a finishing mill, which is provided with a base arranged between two cone boxes of the finishing mill, and a water inlet channel for introducing cooling water and a water outlet channel communicated with the water inlet channel are arranged in the base; a movable valve element is arranged in the water outlet channel, the valve element moves to control flowing of cooling water in the water outlet channel, a water outlet of the water outlet channel is connected with an inner hexagonal plug with a center hole, and a cooling water pipeline flowing out of the center hole of the inner hexagonal plug is connected to a water inlet in the guide and guard base. The device is simple in structure and convenient to install, the valve element which is opened in the one-way mode is arranged in the water outlet channel, cooling water can be effectively prevented from flowing back to bring oxide scales into the base and block a water channel in the base, even if the valve element is abraded, only the valve element needs to be replaced independently, the whole device does not need to be detached and replaced, and the cost is reduced. The production cost is saved, the service life of the device is prolonged, and the production stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel rolling production, in particular to a one-way anti-blocking cooling device for a finishing rolling mill guide. Background Art

[0002] During the steel rolling production process, the temperature of the wire entering and exiting the finishing mill is generally regulated according to the production process requirements of different steel grades to meet the process requirements.

[0003] In the cooling device structure used in the existing finishing mill guide, the cooling water outlet of the device is usually a single through-hole structure without any dust and anti-blocking structure. As a result, the iron oxide scale generated during the rolling process can easily flow into the water channel inside the device with the cooling water, causing blockage inside the cooling device.

[0004] Once the cooling device is blocked, the plant needs to be stopped on site, otherwise the temperature and cooling of the wire will deviate greatly, which will affect the quality of the finished wire. For blocked waterways, high-pressure water pipes are often used to clear the waterways. If the clearing is ineffective, the cooling device needs to be disassembled and replaced, which is time-consuming and labor-intensive, not only affecting the normal production rhythm, but also increasing the consumption of spare parts and maintenance workload, resulting in waste of manpower and material resources and economic losses. Summary of the invention

[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a one-way anti-blocking cooling device for a finishing mill guide which can effectively prevent the blockage phenomenon.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a one-way anti-blocking cooling device for a finishing mill guide, comprising a base installed between two cone boxes of the finishing mill, wherein a water inlet channel for introducing cooling water and a water outlet channel connected to the water inlet channel are provided in the base; a movable valve core is provided in the water outlet channel, and the movement of the valve core controls the flow of cooling water in the water outlet channel; a water outlet of the water outlet channel is connected to a hexagonal plug with a center hole in the center, and a cooling water pipeline flowing out from the center hole of the hexagonal plug is connected to the water inlet on the guide base.

[0007] Specifically, the water outlet channel includes a water inlet section, a water storage chamber and a water outlet section. The water inlet section is connected to the water inlet channel, the water storage chamber is located between the water inlet section and the water outlet section, the hexagonal plug is connected to the outer end of the water outlet section, and the valve core is located in the water storage chamber and the outer end of the valve core is slidably matched with the inner end of the water outlet section.

[0008] Furthermore, the valve core includes a cone portion and a ring sleeve of an integral structure, the large end of the cone portion is connected to the inner end of the ring sleeve, the small end of the cone portion can be pressed between the water inlet section and the water storage chamber to cut off the flow of cooling water, the outer end of the ring sleeve is slidably matched with the inner end of the water outlet section, and a plurality of circumferentially evenly distributed through holes are opened on the side wall of the ring sleeve, and the through holes are connected to the water storage chamber.

[0009] Furthermore, a return spring is arranged in the ring sleeve to press the small end of the cone portion of the valve core between the water inlet section and the water storage chamber, and the two ends of the return spring are respectively connected to the cone portion and the hexagonal plug.

[0010] The beneficial effects of the utility model are as follows: the utility model can effectively prevent the cooling water from flowing back and bringing the iron oxide belt into the base, thereby preventing the blockage of the waterway inside the base due to the wear of the valve core after long-term use and unable to meet the functional requirements, the valve core can be replaced separately by using an Allen wrench, without the need to disassemble and replace the entire device, which not only improves the overall service life of the device, reduces the consumption of spare parts, but also reduces the waste of manpower and material resources, and improves the stability of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0012] Figure 1 It is a cross-sectional structural schematic diagram of the utility model.

[0013] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0014] In the figure: 1. base, 2. water inlet channel, 3. water outlet channel, 3-1. water inlet section, 3-2. water storage chamber, 3-3. water outlet section, 4. valve core, 4-1. cone part, 4-2. ring sleeve, 4-3. through hole, 5. hexagon socket plug, 6. reset spring. DETAILED DESCRIPTION

[0015] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0016] like Figure 1-2 The one-way anti-blocking cooling device for a finishing mill guide shown in the figure comprises a base 1, and the base 1 is fixed between two cone boxes of the finishing mill through four mounting holes arranged in a matrix.

[0017] The base 1 is provided with two water inlet channels 2 for introducing cooling water, and two water outlet channels 3 are connected to the two water inlet channels 2 respectively. The axes of the two water outlet channels 3 are perpendicular to each other, and the cooling water flowing out of the two water outlet channels 3 flows to the water inlets on the left and right sides of the finishing mill guide base respectively.

[0018] The water outlet channel 3 includes a water inlet section 3-1, a water storage chamber 3-2 and a water outlet section 3-3, wherein the water inlet section 3-1 is connected to the water inlet channel 2, the water storage chamber 3-2 is located between the water inlet section 3-1 and the water outlet section 3-3, and the diameter of the water storage chamber 3-2 is larger than the diameters of the water inlet section 3-1 and the water outlet section 3-3.

[0019] A hexagonal plug 5 is threadedly connected to the outer end of the water outlet section 3-3, and the hexagonal plug 5 has a center hole; a valve core 4 for moving and controlling the flow of cooling water in the water outlet channel 3 is provided in the water storage chamber 3-2, and the valve core 4 includes a cone portion 4-1 and a ring sleeve 4-2 of an integral structure, the large end of the cone portion 4-1 is connected to the inner end of the ring sleeve 4-2, and the small end of the cone portion 4-1 can be pressed against the connection between the water inlet section 3-1 and the water storage chamber 3-2, thereby disconnecting the circulation of cooling water in the water outlet channel 3; the outer end of the ring sleeve 4-2 is slidably matched with the inner end of the water outlet section 3-3, and four through holes 4-3 evenly distributed circumferentially are opened on the side wall of the ring sleeve 4-2, and the through holes 4-3 are connected to the water storage chamber 3-2.

[0020] A return spring 6 is arranged in the inner hole of the ring sleeve 4 - 2 , and two ends of the return spring 6 are connected to the large end surface of the cone portion 4 - 1 and the inner end surface of the hexagon socket plug 5 respectively.

[0021] During normal production, cooling water is introduced from the water inlet channel 2. When the cooling water enters the water outlet section 3-3 of the water outlet channel 3, the cone portion 4-1 of the valve core 4 will be lifted up under the water pressure of the cooling water, so that the water inlet section 3-1 is connected with the water storage chamber 3-2. At this time, the return spring 6 is compressed, and the cooling water flows into the water storage chamber 3-2 and flows into the ring sleeve 4-2 through the four through holes 4-3 on the side wall of the ring sleeve 4-2, and then flows out through the center hole of the hexagon socket plug 5. The outflowing cooling water is The pipeline is connected to the water inlet on the guide base to cool the guide of the finishing mill; after stopping and turning off the water, under the action of the return spring 6, the cone part 4-1 of the valve core 4 is pressed between the water inlet section 3-1 and the water storage chamber 3-2, and the water outlet channel 3 is blocked, so that the cooling water entering the guide of the finishing mill cannot flow back, so that the cooling water backflow can be effectively prevented from entering the water inlet channel 2 inside the base 1 and causing the water inlet channel 2 to be blocked. The device has a simple structure, realizes the effect of one-way water inlet and backflow prevention of cooling water, and improves the service life of the device.

[0022] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A one-way anti-blocking cooling device for a finishing mill guide, comprising a base (1) installed between two cone boxes of the finishing mill, characterized in that: The base (1) is provided with a water inlet channel (2) for introducing cooling water, and a water outlet channel (3) connected to the water inlet channel (2); a movable valve core (4) is provided in the water outlet channel (3), and the valve core (4) moves to control the flow of cooling water in the water outlet channel (3); the water outlet of the water outlet channel (3) is connected to a hexagonal plug (5) with a center hole in the center, and the cooling water pipeline flowing out of the center hole of the hexagonal plug (5) is connected to the water inlet on the guide base.

2. The one-way anti-blocking cooling device for the guide of the finishing rolling mill according to claim 1, characterized in that: The water outlet channel (3) comprises a water inlet section (3-1), a water storage chamber (3-2) and a water outlet section (3-3); the water inlet section (3-1) is communicated with the water inlet channel (2); the water storage chamber (3-2) is located between the water inlet section (3-1) and the water outlet section (3-3); the hexagonal plug (5) is connected to the outer end of the water outlet section (3-3); the valve core (4) is located in the water storage chamber (3-2) and the outer end of the valve core (4) is slidably matched with the inner end of the water outlet section (3-3).

3. The one-way anti-blocking cooling device for the guide of the finishing rolling mill according to claim 2, characterized in that: The valve core (4) comprises a cone portion (4-1) and a ring sleeve (4-2) of an integral structure, the large end of the cone portion (4-1) is connected to the inner end of the ring sleeve (4-2), the small end of the cone portion (4-1) can be pressed between the water inlet section (3-1) and the water storage chamber (3-2) to cut off the circulation of cooling water, the outer end of the ring sleeve (4-2) is slidably matched with the inner end of the water outlet section (3-3), and a plurality of circumferentially evenly distributed through holes (4-3) are opened on the side wall of the ring sleeve (4-2), and the through holes (4-3) are communicated with the water storage chamber (3-2).

4. The one-way anti-blocking cooling device for the guide of the finishing rolling mill according to claim 3 is characterized in that: The ring sleeve (4-2) is provided with a return spring (6) for pressing the small end of the cone portion (4-1) of the valve core (4) between the water inlet section (3-1) and the water storage chamber (3-2), and the two ends of the return spring (6) are respectively connected to the cone portion (4-1) and the hexagon socket plug (5).

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