Automatic oil return device for vertical mill

Abstract

The utility model relates to an automatic oil return device for a vertical mill, and belongs to the technical field of cement production equipment, the automatic oil return device comprises an oil inlet pipeline and an oil return pipeline which are arranged between a vertical mill and an oil station, the oil inlet pipeline comprises an oil inlet pipe and an oil inlet pump, one end of the oil inlet pipe is communicated with the oil station, and the other end of the oil inlet pipe is communicated with a vertical mill cooling system; the oil inlet pump is used for injecting oil of an oil station into the vertical mill through the oil inlet pipe, the oil return pipeline comprises a first oil return pipe, a second oil return pipe and an oil return pump, the oil return pump is arranged on the outer wall of the vertical mill, the first oil return pipe is connected with a cooling system of the vertical mill, and the other end of the first oil return pipe is connected with the oil return pump. One end of the second oil return pipe is connected with the oil return pump, and the other end is connected with the oil station. The device has the effect of facilitating oil flowing.

Description

Technical Field

[0001] This application relates to the field of cement production equipment technology, and in particular to an automatic oil return device for a vertical mill. Background Technology

[0002] The white cement is produced using advanced domestic dry-process technology. The product mainly comes in three grades: Baichuan brand P·W-1 32.5, P·W-1 42.5, and P·W-1 52.5 white cement. These cements feature rapid setting and hardening, high early strength, good durability, and stable quality. The products are widely used in European-style architecture and sculpture, white concrete, interior and exterior wall putty, colored bricks, cultural stone, GRC components, dry-mixed mortar, and greenway engineering.

[0003] The production process of white cement requires the use of vertical mills to grind raw materials. At the same time, the friction between the grinding rollers, grinding discs and raw materials generates a lot of heat. In order to protect the service life of the vertical mill, it is necessary to cool down the various transmission parts of the vertical mill through an oil station.

[0004] However, during periods of low outside temperature, such as winter, and when the vertical mill is not used for long periods, the oil temperature is low and the flow is not smooth, leading to oil leakage problems in the vertical mill. Utility Model Content

[0005] To facilitate oil flow, this application provides an automatic oil return device for a vertical mill.

[0006] The automatic oil return device for vertical mills provided in this application adopts the following technical solution:

[0007] An automatic oil return device for a vertical mill includes an oil inlet pipeline and an oil return pipeline disposed between the vertical mill and an oil station. The oil inlet pipeline includes an oil inlet pipe and an oil inlet pump. One end of the oil inlet pipe is connected to the oil station, and the other end is connected to the vertical mill cooling system. The oil inlet pump is used to inject oil from the oil station into the vertical mill through the oil inlet pipe. The oil return pipeline includes a first oil return pipe, a second oil return pipe, and an oil return pump. The oil return pump is disposed on the outer wall of the vertical mill. The first oil return pipe is connected to the vertical mill cooling system, and the other end is connected to the oil return pump. One end of the second oil return pipe is connected to the oil return pump, and the other end is connected to the oil station.

[0008] Optionally, an adsorption magnet is provided inside the first return oil pipe, which is used to adsorb and fix metal impurities in the oil. A removal branch pipe is provided on the first return oil pipe, which is connected to the first return oil pipe. An opening and closing element for opening and closing the outlet is provided on the removal branch pipe.

[0009] Optionally, the adsorption magnet is located on the axis of the outgoing branch pipe, the adsorption magnet is slidably disposed in the first return oil pipe, the adsorption magnet moves along the axis of the outgoing branch pipe, and further includes a moving part, the moving part being used to drive the adsorption magnet to move impurities out of the outgoing branch pipe.

[0010] Optionally, it also includes a slide bar, one end of which is fixedly disposed on the inner wall of the first return oil pipe, and the other end is located inside the outlet branch pipe. The adsorption magnet is slidably disposed on the slide bar. The moving part includes a movable magnet slidably disposed on the outer wall of the outlet branch pipe. The movable magnet moves along the length direction of the outlet branch pipe, and the movement of the movable magnet drives the adsorption magnet to move along the slide bar.

[0011] Optionally, the opening and closing element includes two gate valves disposed within the outgoing branch pipe, with the two gate valves spaced apart.

[0012] Optionally, the slide bar includes a first rod body located near both sides of the gate valve and a second rod body located between the two gate valves. The first rod body and the second rod body are coaxially arranged. Extension rods are slidably arranged on the surfaces of the first rod body and the second rod body facing the gate valve. The extension rods are used to connect the first rod body and the second rod body by abutting against the adjacent extension rods after the gate valve is opened.

[0013] Optionally, the first rod and the second rod have a groove on their end faces opposite the gate valve. The extension rod is slidably disposed in the groove. A spring is disposed in the groove. The extension rod is coaxially disposed on the spring, and the spring drives the extension rod to slide toward the gate valve.

[0014] Optionally, the end face of the extension rod that abuts against the gate valve is provided with a guide surface, which is frustum-shaped and gradually decreases in diameter.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. When cooling the vertical mill, start the oil inlet pump. The oil inlet pump draws oil from the oil station and injects it into the cooling system of the vertical mill through the oil inlet pipe. When the cooling system returns oil, start the oil return pump. The oil return pump returns the oil in the cooling system to the oil station through the first oil return pipe and the second oil return pipe. Under the action of the oil return pump, the oil flow is smoother, thereby reducing the impact of oil temperature on the oil. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an automatic oil return device for a vertical mill according to an embodiment of this application;

[0018] Figure 2 This is a cross-sectional view of the removal branch pipe of an automatic oil return device for a vertical mill according to an embodiment of this application;

[0019] Figure 3 This is a cross-sectional view of the slide bar in an automatic oil return device for a vertical mill according to an embodiment of this application.

[0020] Explanation of reference numerals in the attached diagram: 1. Oil inlet pipe; 2. Oil inlet pump; 3. First return oil pipe; 4. Second return oil pipe; 5. Return oil pump; 6. Adsorption magnet; 7. Removal branch pipe;

[0021] 8. Gate valve;

[0022] 9. Move the magnet;

[0023] 10. Sliding rod; 101. First rod body; 102. Second rod body; 103. Extension rod;

[0024] 11. Slide groove; 12. Spring; 13. Guide surface. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0026] This application discloses an automatic oil return device for a vertical mill. (Refer to...) Figure 1 The automatic oil return device of the vertical mill includes an oil inlet pipeline and an oil return pipeline installed between the vertical mill and the oil station. The oil inlet pipeline includes an oil inlet pipe 1 and an oil inlet pump 2. One end of the oil inlet pipe 1 is connected to the oil station, and the other end is connected to the cooling system of the vertical mill. The oil inlet pump 2 is used to inject the oil from the oil station into the vertical mill through the oil inlet pipe 1. The oil return pipeline includes a first oil return pipe 3, a second oil return pipe 4, and an oil return pump 5. The oil return pump 5 is installed on the outer wall of the vertical mill. The first oil return pipe 3 is connected to the cooling system of the vertical mill, and the other end is connected to the oil return pump 5. One end of the second oil return pipe 4 is connected to the oil return pump 5, and the other end is connected to the oil station.

[0027] When cooling the vertical mill, start the oil inlet pump 2. The oil inlet pump 2 draws oil from the oil station and injects it into the cooling system of the vertical mill through the oil inlet pipe 1. When the cooling system returns oil, start the return oil pump 5. The return oil pump 5 returns the oil in the cooling system to the oil station through the first return oil pipe 3 and the second return oil pipe 4. Under the action of the return oil pump 5, the oil flow is smoother, thereby reducing the influence of temperature on the oil.

[0028] Reference Figure 1 , Figure 2 and Figure 3In this embodiment, an adsorption magnet 6 is installed inside the first return oil pipe 3. The adsorption magnet 6 is used to adsorb and fix metal impurities in the oil. A discharging branch pipe 7 is installed on the first return oil pipe 3, and the discharging branch pipe 7 is connected to the first return oil pipe 3. An opening and closing device for opening and closing the outlet is installed on the discharging branch pipe 7. When the oil flows back, when the oil passes through the adsorption magnet 6, the metal impurities in the oil are fixed on the adsorption magnet 6, thereby improving the quality of the oil and reducing the possibility of damage to the return oil pump 5. At the same time, it facilitates the smooth flow of oil in the inlet and return oil pipes. Under the action of the opening and closing device, the opening of the discharging branch pipe 7 is opened, so that the adsorption magnet 6 can be removed through the discharging branch pipe 7, which facilitates the collection and treatment of metal impurities.

[0029] Reference Figure 1 , Figure 2 and Figure 3 In this application, the adsorption magnet 6 is located on the axis of the outlet branch pipe 7. The adsorption magnet 6 is slidably disposed in the first return oil pipe 3. The adsorption magnet 6 moves along the axis of the outlet branch pipe 7. It also includes a moving part, which is used to drive the adsorption magnet 6 to move impurities out of the outlet branch pipe 7. After the outlet branch pipe 7 is opened by the opening and closing part, the moving part drives the adsorption magnet 6 to move in the outlet branch pipe 7, so as to facilitate the adsorption magnet 6 to be moved out of the outlet branch pipe 7.

[0030] Reference Figure 1 , Figure 2 and Figure 3 In this embodiment, a slide bar 10 is also included. One end of the slide bar 10 is fixedly disposed on the inner wall of the first return oil pipe 3, and the other end is located inside the outlet branch pipe 7. The adsorption magnet 6 is slidably disposed on the slide bar 10. The moving part includes a movable magnet 9 slidably disposed on the outer wall of the outlet branch pipe 7. The movable magnet 9 moves along the length direction of the outlet branch pipe 7. The movement of the movable magnet 9 drives the adsorption magnet 6 to move along the slide bar 10. When processing metal impurities, the opening and closing part first opens the outlet branch pipe 7, and then the movable magnet 9 is slid. The movable magnet 9 drives the adsorption magnet 6 to slide along the slide bar 10, so that the adsorption magnet 6 is removed from the outlet branch pipe 7.

[0031] Reference Figure 1 , Figure 2 and Figure 3 In this embodiment of the application, the opening and closing device includes two gate valves 8 disposed in the removal branch pipe 7, and the two gate valves 8 are disposed at intervals; there are two gate valves 8, which facilitates closing the removal branch pipe 7 respectively to remove the adsorption magnet 6.

[0032] Reference Figure 1 , Figure 2 and Figure 3In this embodiment, the slide bar 10 includes a first rod 101 located near both sides of the gate valve 8 and a second rod 102 located between the two gate valves 8. The first rod 101 and the second rod 102 are coaxially arranged. Extension rods 103 are slidably arranged on the surfaces of the first rod 101 and the second rod 102 facing the gate valve 8. The extension rods 103 are used to connect the first rod 101 and the second rod 102 by abutting against the adjacent extension rods 103 after the gate valve 8 is opened. When the gate valve 8 is opened, the extension rods 103 slide out from the first rod 101 and the second rod 102 and abut against each other, thereby connecting the first rod 101 and the second rod 102, which facilitates the sliding of the magnet 6 along the slide bar 10.

[0033] Reference Figure 1 , Figure 2 and Figure 3 In this embodiment, the first rod 101 and the second rod 102 have a groove 11 on their end faces opposite to the gate valve 8. The extension rod 103 is slidably disposed in the groove 11, and a spring 12 is disposed in the groove 11. The extension rod 103 is coaxially disposed on the spring 12, and the spring 12 drives the extension rod 103 to slide toward the gate valve 8. Under the action of the spring 12, the extension rod 103 can easily slide out of the groove 11, which facilitates the connection of the slide rod 10.

[0034] Reference Figure 1 , Figure 2 and Figure 3 In this embodiment, the end face of the extension rod 103 that abuts against the gate valve 8 is provided with a guide surface 13. The guide surface 13 is frustum-shaped and its diameter gradually decreases. Under the action of the guide surface 13, when the gate valve 8 enters the main pipe, the gate presses down on the guide surface 13, causing the extension rod 103 to move back into the slide groove 11.

[0035] The implementation principle of an automatic oil return device for a vertical mill according to an embodiment of this application is as follows:

[0036] When cooling the vertical mill, start the oil inlet pump 2. The oil inlet pump 2 draws oil from the oil station and injects it into the cooling system of the vertical mill through the oil inlet pipe 1. When the cooling system returns oil, start the return oil pump 5. The return oil pump 5 returns the oil in the cooling system to the oil station through the first return oil pipe 3 and the second return oil pipe 4. Under the action of the return oil pump 5, the oil flow is smoother, thereby reducing the influence of temperature on the oil.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic oil return device for a vertical mill, characterized in that: It includes an oil inlet pipeline and an oil return pipeline installed between the vertical mill and the oil station. The oil inlet pipeline includes an oil inlet pipe (1) and an oil inlet pump (2). One end of the oil inlet pipe (1) is connected to the oil station, and the other end is connected to the cooling system of the vertical mill. The oil inlet pump (2) is used to inject the oil from the oil station into the vertical mill through the oil inlet pipe (1). The oil return pipeline includes a first oil return pipe (3), a second oil return pipe (4), and an oil return pump (5). The oil return pump (5) is installed on the outer wall of the vertical mill. The first oil return pipe (3) is connected to the cooling system of the vertical mill, and the other end is connected to the oil return pump (5). One end of the second oil return pipe (4) is connected to the oil return pump (5), and the other end is connected to the oil station.

2. The automatic oil return device for a vertical mill according to claim 1, characterized in that: An adsorption magnet (6) is provided inside the first return oil pipe (3). The adsorption magnet (6) is used to adsorb and fix metal impurities in the oil. A removal branch pipe (7) is provided on the first return oil pipe (3). The removal branch pipe (7) is connected to the first return oil pipe (3). An opening and closing component for opening and closing the outlet is provided on the removal branch pipe (7).

3. An automatic oil return device for a vertical mill according to claim 2, characterized in that: The adsorption magnet (6) is located on the axis of the outlet branch pipe (7). The adsorption magnet (6) is slidably disposed in the first return oil pipe (3). The adsorption magnet (6) moves along the axis of the outlet branch pipe (7). The device also includes a moving part, which is used to drive the adsorption magnet (6) to move impurities out of the outlet branch pipe (7).

4. An automatic oil return device for a vertical mill according to claim 3, characterized in that: It also includes a slide rod (10), one end of which is fixedly disposed on the inner wall of the first return oil pipe (3), and the other end is located in the outlet branch pipe (7). The adsorption magnet (6) is slidably disposed on the slide rod (10). The moving part includes a movable magnet (9) slidably disposed on the outer wall of the outlet branch pipe (7). The movable magnet (9) moves along the length direction of the outlet branch pipe (7). The movement of the movable magnet (9) drives the adsorption magnet (6) to move along the slide rod (10).

5. An automatic oil return device for a vertical mill according to claim 4, characterized in that: The opening and closing components include two gate valves (8) disposed in the outgoing branch pipe (7), with the two gate valves (8) spaced apart.

6. An automatic oil return device for a vertical mill according to claim 5, characterized in that: The slide bar (10) includes a first rod (101) located near both sides of the gate valve (8) and a second rod (102) located between the two gate valves (8). The first rod (101) and the second rod (102) are coaxially arranged. Both the first rod (101) and the second rod (102) have extension rods (103) slidably arranged on the surfaces of the first rod (101) and the second rod (102) facing the gate valve (8). The extension rods (103) are used to connect the first rod (101) and the second rod (102) by abutting against the adjacent extension rods (103) after the gate valve (8) is opened.

7. An automatic oil return device for a vertical mill according to claim 6, characterized in that: The first rod (101) and the second rod (102) have a groove (11) on their end faces opposite to the gate valve (8). The extension rod (103) is slidably disposed in the groove (11). A spring (12) is disposed in the groove (11). The extension rod (103) is coaxially disposed on the spring (12), and the spring (12) drives the extension rod (103) to slide toward the gate valve (8).

8. An automatic oil return device for a vertical mill according to claim 7, characterized in that: The extension rod (103) is provided with a guide surface (13) on the end face of the gate valve (8), and the guide surface (13) is frustum-shaped with a gradually decreasing diameter.

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