Discharging cooling mechanism of hot mill

Abstract

The utility model discloses a discharging cooling mechanism of a hot rolling mill, and belongs to the technical field of hot rolling mills. Comprising a machine body, a cooling box is fixedly arranged on one side of the discharging structure, and a feeding hole and a discharging hole corresponding to the discharging structure are formed in the two sides of the cooling box correspondingly. A cooling plate is fixedly arranged in the cooling box, and the height of the cooling plate is lower than the height of the feeding hole and the height of the discharging hole. An insertion groove is formed in the inner wall of the cooling box, a filtering supporting plate located below the cooling plate is arranged in the insertion groove, and a filtering net is arranged on the filtering supporting plate; a water cooling tank is fixedly arranged on the water storage tank, and the water cooling tank is communicated with the water storage tank through a flow guide hole in the water storage tank; a reflux pump is arranged at the bottom of the cooling box, and the working end of the reflux pump is connected with a reflux pipe communicated with the water cooling box. According to the discharging cooling mechanism, the problem that a discharging cooling mechanism of an existing hot rolling mill is inconvenient to recycle water resources to cool metal blanks can be solved.

Description

Technical Field

[0001] The utility model provides a material discharging cooling mechanism for a hot rolling mill, belonging to the technical field of hot rolling mills. Background Art

[0002] Hot rolling mill is an industrial equipment commonly used in the production of metal materials such as steel, copper, and aluminum. Its main working principle is to continuously deform the metal billet under high temperature conditions through hot rolling processing, so that its cross-sectional area is continuously reduced until it meets the required size and geometry. After the hot rolling mill is completed, some post-processing work is required. The most important of these is cooling treatment. Since a large amount of heat is generated during the rolling process, the rolled metal billet needs to be quickly cooled to avoid metal grain growth, which affects the mechanical properties and organizational structure of the metal material.

[0003] One of the commonly used cooling treatment methods is water cooling, which sprays cooling water through nozzles or water pipes onto the surface of the metal billet, using the cooling effect of water to quickly reduce the temperature of the material. However, since the temperature of the metal billet is very high after hot rolling, the temperature of the water sprayed on the metal billet will increase. If it is immediately recycled, the water cooling effect will be reduced, making it inconvenient to recycle water resources. Therefore, it is often necessary to store a large amount of cold water to cool the metal billet. Utility Model Content

[0004] The utility model provides a discharge cooling mechanism for a hot rolling mill, which can filter and recycle water by arranging a filter screen and a reflux pump, and a water cooling box is arranged on the circulation path to cool the recycled water for reuse, which can solve the problem that the discharge cooling mechanism of the existing hot rolling mill is inconvenient to recycle water resources to cool the metal billet.

[0005] In order to solve the above problems, the utility model proposes the following technical solutions: a discharging and cooling mechanism for a hot rolling mill, comprising a machine body, a discharging structure being arranged on one side of the machine body; a cooling box being fixedly arranged on one side of the discharging structure, and a feed hole and a discharging hole corresponding to the discharging structure being respectively provided on both sides of the cooling box; a cooling plate being fixedly arranged in the cooling box, and the height of the cooling plate being lower than the heights of the feed hole and the discharging hole; a slot being provided in the inner wall of the cooling box, a filter support plate being arranged below the cooling plate in the slot, and a filter screen being arranged on the filter support plate; a water cooling box being fixedly arranged on the water storage tank, and the water cooling box being connected to the water storage tank through the guide hole on the water storage tank; a reflux pump being arranged at the bottom of the cooling box, and a working end of the reflux pump being connected to a reflux pipe connected to the water cooling box.

[0006] As an improvement, a water-spreading nozzle connected to the return pipe is arranged in the water-cooling box, and a filler structure is arranged below the water-spreading nozzle; air inlets are opened on both sides of the water-cooling box, and a fan is arranged on the water-cooling box.

[0007] As an improvement, the fan drives the air in the water cooling box to flow from the air inlet toward the fan.

[0008] As an improvement, a water spray pipe located above the cooling plate is provided in the cooling box, a water spray pump is provided in the water storage tank, and a working end of the water spray pump is connected to the water spray pipe.

[0009] As an improvement, the cooling plate is provided with water-permeable holes, and the filter support plate is provided with hydrophobic holes.

[0010] As an improvement, the cooling box wall is provided with a through hole connected to the slot, the outer wall of the cooling box is provided with an operating panel fixedly connected to the filter support plate, and the operating panel is fixedly connected to the cooling box by fixing screws.

[0011] Beneficial effects of the utility model:

[0012] 1. A slot is provided on the inner wall of the cooling box. A filter support plate is provided in the slot and is located below the cooling plate. A filter screen is provided on the filter support plate. The filter screen can filter the water with a higher temperature after the metal blank is cooled, remove the metal residue, and avoid the water recycling cycle from clogging the pipeline. The filter support plate is located in the slot for easy disassembly, so that the staff can clean the metal residue filtered out by the filter screen.

[0013] 2. A reflux pump is arranged at the bottom of the cooling box, and the working end of the reflux pump is connected to a reflux pipe which is connected to the water cooling box. The filtered water with a higher temperature can be introduced into the water cooling box through the reflux pump and the reflux pipe. The hot water is cooled by the water cooling box and then introduced into the water storage tank to participate in the water recycling. The water can be recycled, cooled and recycled, and the metal billet after hot rolling of the hot rolling mill can be continuously cooled without excessive cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereoscopic diagram of a material discharging and cooling mechanism of a hot rolling mill according to the utility model.

[0015] Figure 2 It is an exploded view of the connection between the discharge structure and the cooling box of the discharge cooling mechanism of a hot rolling mill according to the utility model.

[0016] Figure 3 The utility model is a diagram showing the internal structure of a cooling box of a material discharging cooling mechanism of a hot rolling mill.

[0017] Figure 4 This is a structural diagram of the interior of a cooling box of a discharge cooling mechanism of a hot rolling mill from another perspective of the utility model.

[0018] Figure 5It is a cross-sectional view of a discharge cooling mechanism of a hot rolling mill according to the utility model.

[0019] 1. Machine body; 2. Discharge structure; 3. Water cooling box; 4. Water storage tank; 5. Discharge hole; 6. Cooling box; 7. Feed hole; 8. Operation panel; 9. Water permeable hole; 10. Cooling plate; 11. Reflux pump; 12. Filter support plate; 13. Slot; 14. Reflux pipe; 15. Water spray pipe; 16. Filter screen; 17. Drain hole; 18. Air inlet; 19. Fan; 20. Water spray pipe; 21. Filling structure; 22. Diversion hole; 23. Water spray pump; 24. Through hole. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] according to Figure 1-5 As shown: the utility model provides a discharging and cooling mechanism of a hot rolling mill: it comprises a machine body 1, a discharging structure 2 is arranged on one side of the machine body 1; a cooling box 6 is fixedly arranged on one side of the discharging structure 2, and a feed hole 7 and a discharging hole 5 corresponding to the discharging structure 2 are respectively provided on both sides of the cooling box 6; a cooling plate 10 is fixedly arranged in the cooling box 6, and the height of the cooling plate 10 is lower than the heights of the feed hole 7 and the discharging hole 5; a slot 13 is provided on the inner wall of the cooling box 6, a filter support plate 12 located below the cooling plate 10 is arranged in the slot 13, and a filter screen 16 is arranged on the filter support plate 12; a water cooling box 3 is fixedly arranged on the water storage tank 4, and the water cooling box 3 is connected with the water storage tank 4 through the guide hole 22 on the water storage tank 4; a reflux pump 11 is arranged at the bottom of the cooling box 6, and the working end of the reflux pump 11 is connected with a reflux pipe 14 connected with the water cooling box 3.

[0022] By setting up a filter screen 16 and a reflux pump 11, water can be filtered and recycled, and a water cooling box 3 is set on the circulation path to cool the recycled water for reuse, which can solve the problem that the existing hot rolling mill's discharge cooling mechanism is inconvenient to recycle water resources to cool the metal billet.

[0023] A water spraying pipe 20 connected to the return pipe 14 is arranged in the water cooling box 3, and a packing structure 21 is arranged below the water spraying pipe 20; air inlets 18 are arranged on both sides of the water cooling box 3, and a fan 19 is arranged on the water cooling box 3. The fan 19 drives the air in the water cooling box 3 to flow from the air inlet 18 to the fan 19.

[0024] The setting of the packing structure 21 can increase the contact area between water and air, promote heat transfer and dissipation, and the fan 19 can drive the natural wind outside the water cooling box 3 to enter the water cooling box 3 through the air inlet 18 to accelerate the cooling of the water.

[0025] A water spray pipe 15 is provided in the cooling box 6 and is located above the cooling plate 10. A water spray pump 23 is provided in the water storage tank 4, and the working end of the water spray pump 23 is connected to the water spray pipe 15. A water permeable hole 9 is provided on the cooling plate 10, and a water-repellent hole 17 is provided on the filter support plate 12. The water permeable hole 9 and the water-repellent hole 17 are provided so that water can flow normally and finally fall into the bottom of the cooling box 6.

[0026] The wall of the cooling box 6 is provided with a through hole 24 communicating with the slot 13 , and the outer wall of the cooling box 6 is provided with an operating panel 8 fixedly connected to the filter support plate 12 , and the operating panel 8 is fixedly connected to the cooling box 6 by fixing screws.

[0027] The provision of the fixing screws facilitates the disassembly of the operating panel 8, thereby facilitating the removal and cleaning of the filter support plate 12 and the filter screen 16, while the provision of the through holes 24 can provide sufficient space for the metal residues on the filter screen 16 to pass through.

[0028] Principle of the utility model

[0029] The hot-rolled metal billet of the machine body 1 enters the cooling plate 10 of the cooling box 6 from the feed hole 7, and the water spray pump 23 and the water spray pipe 15 work to spray and cool the high-temperature metal billet. The cooled water falls on the filter screen 16 through the water permeable hole 9, and enters the bottom of the cooling box 6 through the hydrophobic hole 17 after being filtered by the filter screen 16. The reflux pump 11 is started to guide the hot water at the bottom of the cooling box 6 into the water cooling box 3 through the reflux pipe 14, and then sprays it out from the water spraying pipe 20. The filler structure 21 is used to expand the contact area between the hot water and the air, and then the fan 19 is used to cool the hot water; the cooled water enters the water storage tank 4 through the guide hole 22 and re-participates in the cooling cycle. After the cooling is completed, the metal billet can be taken out from the discharge hole 5.

[0030] After a period of time, a lot of metal residues accumulate on the filter 16 and need to be cleaned. Remove the fixing screws on the operating panel 8, pull the operating panel 8 out of the slot 13 together with the filter support plate 12 and the filter 16, replace or clean the filter 16, and then install the filter 16 and the filter support plate 12. It is simple and convenient.

[0031] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A discharge cooling mechanism for a hot rolling mill, comprising a machine body (1), a discharge structure (2) being arranged on one side of the machine body (1); characterized in that: A cooling box (6) is fixedly arranged on one side of the discharge structure (2), and a feed hole (7) and a discharge hole (5) corresponding to the discharge structure (2) are respectively provided on both sides of the cooling box (6); a cooling plate (10) is fixedly arranged in the cooling box (6), and the height of the cooling plate (10) is lower than the height of the feed hole (7) and the discharge hole (5); a slot (13) is provided on the inner wall of the cooling box (6), and a filter support plate (12) located below the cooling plate (10) is provided in the slot (13), and a filter screen (16) is provided on the filter support plate (12); a water cooling box (3) is fixedly arranged on the water storage tank (4), and the water cooling box (3) is connected to the water storage tank (4) through a guide hole (22) on the water storage tank (4); a reflux pump (11) is provided at the bottom of the cooling box (6), and a working end of the reflux pump (11) is connected to a reflux pipe (14) connected to the water cooling box (3).

2. A discharge cooling mechanism for a hot rolling mill according to claim 1, characterized in that: The water cooling box (3) is provided with a water spraying nozzle (20) which is connected to the return pipe (14), and a filler structure (21) is provided below the water spraying nozzle (20); air inlets (18) are provided on both sides of the water cooling box (3), and a fan (19) is provided on the water cooling box (3).

3. A discharge cooling mechanism for a hot rolling mill according to claim 2, characterized in that: The fan (19) drives the air in the water cooling box (3) to flow from the air inlet (18) toward the fan (19).

4. The discharge cooling mechanism of a hot rolling mill according to claim 1, characterized in that: The cooling box (6) is provided with a water spray pipe (15) located above the cooling plate (10), and the water storage tank (4) is provided with a water spray pump (23), and the working end of the water spray pump (23) is connected to the water spray pipe (15).

5. The discharge cooling mechanism of a hot rolling mill according to claim 1, characterized in that: The cooling plate (10) is provided with a water-permeable hole (9), and the filtering support plate (12) is provided with a hydrophobic hole (17).

6. A discharge cooling mechanism for a hot rolling mill according to claim 1, characterized in that: The wall of the cooling box (6) is provided with a through hole (24) communicating with the slot (13); the outer wall of the cooling box (6) is provided with an operating panel (8) fixedly connected to the filter support plate (12); and the operating panel (8) is fixedly connected to the cooling box (6) by means of fixing screws.

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