Roll cooling device

Abstract

The utility model relates to rolling mill technical field, concretely relates to a kind of roll cooling device, including the cooling box of upper opening, water storage tank and pumping assembly, at least one injection pipe and installation at least one roll are equipped on the cooling box;The pumping assembly is used to pump the water in water storage tank to injection pipe, and pumping assembly has liquid inlet end and liquid outlet end, the liquid inlet end of water storage tank and pumping assembly is communicated, the liquid outlet end of pumping assembly is communicated with injection pipe, the injection pipe is used to spray water to roll, and the water of injection falls into cooling box inside;Water outlet one is equipped on the cooling box, and water outlet one is communicated with water storage tank by reflux pipeline one.The roll cooling device of the utility model can greatly reduce the time of roll cooling, so that the roll replaced can be fasterly put into rolling work or grinding work, and then effectively reduce the production cost of enterprise.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill technology, specifically to a roll cooling device. Background Technology

[0002] In the metal rolling process, the rolls, as key working components and tools on the rolling mill, directly determine the quality of metal products and production efficiency. Rolls mainly consist of three parts: the roll body, the roll neck, and the roll head. The roll body directly participates in the plastic deformation of the metal and is the core area of ​​the rolling process. The roll neck is installed in a bearing housing and rotates through the transmission of the roll head, thereby driving the rolling deformation of the metal.

[0003] To ensure the precision and quality of metal rolling, the surface condition of the rolls is typically subject to stringent requirements. However, during the rolling process, the temperature of the rolls rises due to prolonged operation, and their surfaces may also be damaged, necessitating replacement. Replaced rolls often require a considerable amount of time to cool naturally (generally about a day), and only after cooling can they be reused for rolling operations or undergo surface grinding to restore their working surface.

[0004] If rolls are re-entered into rolling operations without allowing them to cool naturally, the quality of the rolled metal cannot be guaranteed, and the roll surface is easily damaged. Similarly, if surface grinding begins before the rolls have cooled naturally, the internal thermal stress may exceed the strength of the roll material, resulting in serious defects such as shrinkage and deformation. This affects grinding accuracy, surface quality, and roll life, potentially leading to major safety hazards such as roll cracking and chipping during rolling. However, relying entirely on natural cooling of the rolls requires companies to have a large number of spare rolls, leading to higher costs and requiring larger facilities to store them, further increasing production costs. Summary of the Invention

[0005] This invention addresses the problem in existing technologies where rolled rolls removed from rolling mills often require a long cooling time, necessitating a large number of spare rolls and substantial factory space for continuous metal rolling, thus leading to high production costs. The invention provides a rolled roll cooling device that significantly reduces the cooling time, allowing removed rolls to be reused more quickly for rolling or grinding, thereby effectively lowering production costs.

[0006] To solve the above problems, the technical solution of this utility model is:

[0007] A roll cooling device includes a cooling box with an open top, a water storage tank, and a pumping assembly. The cooling box is provided with at least one spray pipe and at least one roll.

[0008] The pumping assembly is used to pump water from the water storage tank to the spray pipe. The pumping assembly has an inlet end and an outlet end. The water storage tank is connected to the inlet end of the pumping assembly, and the outlet end of the pumping assembly is connected to the spray pipe. The spray pipe is used to spray water onto the rollers, and the sprayed water falls into the cooling tank.

[0009] The cooling box is provided with a water outlet, which is connected to the water storage tank through a return pipe.

[0010] With the above solution, the upper opening of the cooling tank facilitates the loading and unloading of the rolls. The water storage tank is connected to the inlet end of the pumping component, and the outlet end of the pumping component is connected to the spray pipe. This allows the pumping component to pump water from the storage tank to the spray pipe, which then sprays the water onto the rolls to cool them down. The used water falls back into the cooling tank and returns to the storage tank through the outlet, thus forming a circulating water path that continuously cools the rolls and effectively shortens their cooling time.

[0011] Based on the above solution, the present invention can be further improved as follows:

[0012] Furthermore, the water outlet is connected to the water storage tank via a return pipe, and both the return pipe and the return pipe are equipped with valves and filters.

[0013] Furthermore, the valve is located between the filter and the outlet, or at both ends of the filter.

[0014] By adopting the above-mentioned further solution, valves and filters are installed on both return pipe one and return pipe two, so that the filters can filter the water returning from the cooling box to the water storage tank, thereby preventing impurities in the air or impurities falling from the rolls from clogging the nozzles of the spray pipes during the circulation process; and by setting up a second return pipe in parallel with return pipe one, when there are too many impurities in the filters on return pipe one or return pipe two, the flow pipe can be switched by closing or opening the valves on the corresponding pipes, thereby ensuring the continuity of the roll cooling operation.

[0015] Furthermore, the axis of the roll is along the length of the injection pipe, and the cooling device also includes a power component for driving the roll to rotate on the cooling box.

[0016] Furthermore, the water in the cooling tank comes into contact with the bottom of the roll.

[0017] By adopting the above-mentioned further solution, the rolling mill is continuously driven to rotate by the power component, so that the peripheral wall of the rolling mill can contact the water sprayed from the spray pipe, thereby ensuring the uniformity of the rolling mill cooling; and the bottom of the rolling mill is in contact with the water in the cooling box, which can further improve the cooling efficiency of the rolling mill.

[0018] Furthermore, the bottom of the cooling tank and the top of the water storage tank are located at vertical height one and vertical height two, respectively, with vertical height one being higher than vertical height two; this allows the water in the cooling tank to flow back into the water storage tank under the influence of gravity.

[0019] Furthermore, when there are at least two injection pipes, the same side of each injection pipe is connected to a water distribution pipe, and the liquid outlet of the pumping assembly is connected to all the injection pipes through the water distribution pipe.

[0020] Furthermore, the water storage tank is provided with a water inlet at the top and a water outlet at the bottom, and a level gauge is also provided on the side of the water storage tank to facilitate observation of the liquid level in the tank.

[0021] Furthermore, the volume of the bottom of the cooling tank gradually decreases from top to bottom, and the water outlet is located at the lowest point of the cooling tank; this facilitates the return of water in the cooling tank to the water storage tank through the water outlet.

[0022] Furthermore, the pumping component is a circulating pump; the power component includes a motor and a reducer, the motor is connected to the input end of the reducer, and the output end of the reducer is connected to the roller.

[0023] The beneficial effects of this utility model through the above technical solution are as follows:

[0024] 1. In this utility model, the water storage tank is connected to the inlet end of the pumping component, and the outlet end of the pumping component is connected to the spray pipe, so that the pumping component can pump water from the water storage tank to the spray pipe, and spray the water onto the roll through the spray pipe to cool the roll. The used water falls into the cooling tank and returns to the water storage tank through the outlet on the cooling tank, thus forming a circulating water path, which can continuously cool the roll, thereby effectively shortening the cooling time of the roll. In addition, the opening at the top of the cooling tank facilitates the removal and placement of the roll.

[0025] 2. In a further embodiment of this utility model, valves and filters are installed on both return pipe one and return pipe two, so that the filters can filter the water returning from the cooling box to the water storage tank, thereby preventing impurities in the air or impurities falling from the rolls from clogging the nozzles of the spray pipe during the circulation process; and by separately setting up return pipe two in parallel with return pipe one, when there are too many impurities in the filters on return pipe one or return pipe two, the flow pipe can be switched by closing or opening the valves on the corresponding pipes, thereby ensuring the continuity of the roll cooling operation.

[0026] 3. In a further embodiment of this utility model, the roller is continuously driven to rotate by the power component, so that the peripheral wall of the roller can contact the water sprayed from the spray pipe, thereby ensuring the uniformity of roller cooling; and the bottom of the roller contacts the water in the cooling box, which can further improve the cooling efficiency of the roller. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0029] Figure 3 yes Figure 1 A magnified view of a section at point A in the middle;

[0030] Figure 4 This is the left view of this utility model.

[0031] The attached diagram is labeled as follows: 1. Cooling tank, 2. Water storage tank, 201. Water inlet, 202. Water outlet 2, 203. Level gauge, 3. Pumping assembly, 4. Jet pipe, 5. Water outlet 1, 6. Return pipe 1, 7. Return pipe 2, 8. Valve, 9. Filter, 10. Roller, 11. Power assembly, 1101. Motor, 1102. Reducer, 12. Water distribution pipe. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0033] like Figures 1-4As shown, a roll cooling device includes a cooling box 1 with an open top, a water storage tank 2, and a pumping assembly 3. The pumping assembly 3 is a circulating pump. The cooling box 1 is provided with four spray pipes 4 and two rolls 10. The same side of the four spray pipes 4 is connected to a water distribution pipe 12. The water distribution pipe 12 is an ordinary pipe. The spray pipes 4 are provided with a number of nozzles. The nozzles are ordinary nozzles. The axis of the roll 10 is along the length of the spray pipes 4. There is a spray pipe 4 on each side of each roll 10, and the nozzles on the spray pipes 4 on both sides of the same roll 10 are arranged opposite to each other.

[0034] The pumping assembly 3 is used to pump water from the water storage tank 2 to the water distribution pipe 12, thereby pumping the water to the spray pipe 4. The pumping assembly 3 has an inlet end and an outlet end. The water storage tank 2 is connected to the inlet end of the pumping assembly 3, and the outlet end of the pumping assembly 3 is connected to the spray pipe 4. The spray pipe 4 is used to spray water onto the roller 10, and the sprayed water falls into the cooling tank 1.

[0035] The cooling tank 1 is provided with a water outlet 5, which is connected to the water storage tank 2 through a return pipe 6. The bottom of the cooling tank 1 and the top of the water storage tank 2 are located at vertical height 1 and vertical height 2, respectively. Vertical height 1 is higher than vertical height 2. Specifically, the cooling tank 1 and the water storage tank 2 are located on a stepped staircase. The bottom of the cooling tank 1 is provided with a support bracket to prevent the return pipe 6 from being squeezed against the ground.

[0036] In this embodiment, the water storage tank 2 is connected to the inlet end of the pumping component 3, and the outlet end of the pumping component 3 is connected to the water distribution pipe 12. This allows the pumping component 3 to pump water from the water storage tank 2 into the water distribution pipe 12, and then pump the water to the spray pipe 4. The axis of the roller 10 is along the length of the spray pipe 4, so that the roller 10 can withstand the water sprayed from the spray pipe 4 to the maximum extent, thereby quickly cooling the roller 10. The water sprayed onto the roller 10 falls into the cooling tank 1. Since the bottom of the cooling tank 1 is higher than the top of the water storage tank 2, the water in the cooling tank 1 can return to the water storage tank 2 from the outlet 5 under the action of gravity, thus forming a circulating water path, thereby continuously cooling the roller 10.

[0037] As one possible implementation, the water outlet 5 is also connected to the water storage tank 2 through the return pipe 7, and both the return pipe 6 and the return pipe 7 are equipped with valves 8 and filters 9.

[0038] In this embodiment, valves 8 and filters 9 are installed on both the first return pipe 6 and the second return pipe 7. The filters 9 can filter the water returning from the cooling tank 1 to the water storage tank 2, thereby preventing impurities in the air or impurities falling from the roll 10 from clogging the nozzle of the spray pipe 4 during the circulation process. Furthermore, by separately installing the second return pipe 7 in parallel with the first return pipe 6, when there are too many impurities in the filter 9 on the first return pipe 6 or the second return pipe 7, the flow pipe can be switched by closing or opening the valve 8 on the corresponding pipe, thereby ensuring the continuity of the roll cooling operation.

[0039] As one possible implementation, the valve 8 is located between the filter 9 and the outlet 5, or the valve 8 is located at both ends of the filter 9.

[0040] In this embodiment, since the water in the cooling tank 1 returns to the water storage tank 2 from the outlet 5 under the action of gravity, a valve 8 is installed between the filter 9 and the outlet 5 to control the flow of water; depending on actual needs, valves 8 can also be installed at both ends of the filter 9.

[0041] In one possible implementation, the cooling device further includes a power assembly 11, which includes a motor 1101 and a reducer 1102. The motor 1101 is connected to the input end of the reducer 1102, and the output end of the reducer 1102 is connected to the roll 10, thereby driving the roll 10 to rotate on the cooling box 1.

[0042] In practical scenarios, to facilitate the replacement and installation of the roll 10, the bearing seats at both ends of the roll 10 are often disassembled together when the roll 10 is disassembled. Therefore, in this embodiment, the cooling box 1 is provided with slots at both ends. The slots are provided with rubber pads for placing the bearing seats at both ends of the roll 10. The slots are C-shaped and are also provided with fasteners that cooperate with the slots to fix the bearing seats to the upper end of the cooling box 1, thereby connecting the roll head of the roll 10 to the output end of the reducer 1102. The roll 10 can then be driven to rotate by the motor 1101. Both the motor 1101 and the reducer 1102 have external support structures or fixed structures for positioning, thereby ensuring the stability of the motor 1101 and the reducer 1102 during operation.

[0043] As one possible implementation, the water in the cooling tank 1 comes into contact with the bottom of the roll 10, which can further improve the cooling efficiency of the roll 10.

[0044] As one possible implementation, the water storage tank 2 is provided with a water inlet 201 at the top and a water outlet 202 at the bottom. Both the water inlet 201 and the water outlet 202 are provided with caps that can seal the openings. The water inlet 201 or the water outlet 202 is not used to seal the openings with the caps. The side of the water storage tank 2 is also provided with a level gauge 203. The level gauge 203 is a common transparent pipe, and the upper and lower ends of the pipe are connected to the upper and lower parts of the water storage tank 2, respectively. Thus, the liquid level in the water storage tank 2 can be observed by observing the liquid level in the level gauge 203.

[0045] In this embodiment, after the cooling device has been working for a period of time, the water in the water storage tank 2 is discharged through the outlet 202 for external cooling and filtration before being put back into use. Alternatively, an S-shaped or annular curved pipe can be installed at the bottom of the water storage tank 2, and cold water can be continuously introduced into the curved pipe by a chiller to cool the water in the water storage tank 2 to a certain extent, thereby increasing the water circulation time. After working for a period of time, the water in the water storage tank 2 is discharged through the outlet 202 for external cooling and filtration before being put back into use.

[0046] As one possible implementation, the volume of the bottom of the cooling tank 1 gradually decreases from top to bottom, and the water outlet 5 is located at the lowest point of the cooling tank 1, so that the water in the cooling tank 1 can flow back to the water storage tank 2 through the water outlet 5.

[0047] In this utility model, when in use:

[0048] First, add water to the cooling tank 1 and the water storage tank 2 through the upper opening of the cooling tank 1. After the water in the cooling tank 1 reaches a certain height (when the roll 10 is placed on the cooling tank 1, the water in the cooling tank 1 can contact the bottom of the roll 10), stop adding water, place the bearing seats at both ends of the roll 10 into the slots at both ends of the cooling tank 1, and fix them in place to complete the placement of the roll 10.

[0049] The pumping assembly 3 (i.e., the circulating pump) is turned on to pump the water in the water storage tank 2 to the water distribution pipe 12, and then pump the water to the spray pipe 4. The water is sprayed out from the nozzle on the spray pipe 4 and falls onto the roll 10 to cool the roll 10. The water falls into the cooling box 1 through the roll 10 and returns to the water storage tank 2 through the outlet-5 at the bottom of the cooling box 1 and the return pipe-6, thus forming a circulating water path, which continuously cools the roll 10.

[0050] When there are too many impurities in the filter 9 on the return pipe 1 6, close the valve 8 on the return pipe 1 6 and open the valve 8 on the return pipe 2 7 to complete the change of water flow path, and then replace the filter 9 on the return pipe 1 6. Repeat the same operation to continue the cooling of the roller 10.

[0051] After the cooling device has been working for a period of time, the water in the water storage tank 2 is discharged through the outlet 202 for external cooling and filtration so that it can be put into use again. At the same time, the liquid level in the water storage tank 2 is observed by observing the liquid level in the level gauge 203. When the liquid level in the water storage tank 2 is about to be lower than the connection port between the circulating pump and the water storage tank 2, new water is added to the cooling tank 1 and the water storage tank 2 through the upper opening of the cooling tank 1 until the water in the cooling tank 1 reaches a certain height. This process is repeated to achieve continuous cooling of the roll 10.

[0052] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present invention without departing from the spirit of the present invention or the scope of disclosure shall fall within the protection scope of the present invention.

Claims

1. A roll cooling device, characterized in that, It includes a cooling box (1) with an upper opening, a water storage tank (2) and a pumping assembly (3), wherein the cooling box (1) is provided with at least one spray pipe (4) and at least one roller (10) is installed. The pumping assembly (3) is used to pump water from the water storage tank (2) to the spray pipe (4). The pumping assembly (3) has an inlet end and an outlet end. The water storage tank (2) is connected to the inlet end of the pumping assembly (3), and the outlet end of the pumping assembly (3) is connected to the spray pipe (4). The spray pipe (4) is used to spray water onto the roller (10), and the sprayed water falls into the cooling tank (1). The cooling box (1) is provided with a water outlet (5), and the water outlet (5) is connected to the water storage tank (2) through a return pipe (6).

2. The roll cooling device according to claim 1, characterized in that, The outlet (5) is connected to the water storage tank (2) through the return pipe (7). Both the return pipe (6) and the return pipe (7) are equipped with valves (8) and filters (9).

3. The roll cooling device according to claim 2, characterized in that, The valve (8) is located between the filter (9) and the outlet (5) or at both ends of the filter (9).

4. The roll cooling device according to claim 2 or 3, characterized in that, The axis of the roll (10) is along the length of the spray pipe (4), and the cooling device also includes a power assembly (11) for driving the roll (10) to rotate on the cooling box (1).

5. The roll cooling device according to claim 4, characterized in that, The water in the cooling tank (1) comes into contact with the bottom of the roll (10).

6. The roll cooling device according to claim 4, characterized in that, The bottom of the cooling tank (1) and the top of the water storage tank (2) are located at vertical height one and vertical height two, respectively, with vertical height one being higher than vertical height two.

7. The roll cooling device according to claim 6, characterized in that, When there are at least two spray pipes (4), the same side of each spray pipe (4) is connected to the water distribution pipe (12), and the liquid outlet of the pumping component (3) is connected to all the spray pipes (4) through the water distribution pipe (12).

8. The roll cooling device according to claim 6, characterized in that, The water storage tank (2) has a water inlet (201) at the top and a water outlet (202) at the bottom. The water storage tank (2) also has a level gauge (203) on its side.

9. The roll cooling device according to claim 6, characterized in that, The volume of the bottom of the cooling box (1) gradually decreases from top to bottom, and the water outlet (5) is located at the lowest point of the cooling box (1).

10. The roll cooling device according to claim 6, characterized in that, The pumping assembly (3) is a circulating pump; the power assembly (11) includes a motor (1101) and a reducer (1102), the motor (1101) is connected to the input end of the reducer (1102), and the output end of the reducer (1102) is connected to the roll (10).

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