Seamless steel tube heat treatment integrated device

Abstract

The utility model relates to the technical field of seamless steel pipe heat treatment, and particularly discloses a seamless steel pipe heat treatment integrated device which comprises a heat treatment box and a moving frame, the heat treatment box is fixedly installed on a bottom plate, a rotating shaft is inserted into the top of the moving frame in a rotating connection mode, and the rotating shaft is connected with a steel pipe transposition motor and fixedly connected with a transposition frame. A steel pipe inserting rod used for fixing a steel pipe is fixedly installed on the position changing frame. And the steel pipe transposition motor drives the transposition frame to rotate, so that the transposition frame has at least two states, namely a heating state and a cooling state. The heat treatment box has a heating function, the part capable of spraying cooling liquid to the steel pipe is arranged beside the heating device, water sprayed by the part cannot directly drop onto the heating mechanism, rapid cooling work of the steel pipe can be achieved, the whole heat treatment process can be carried out in the heat treatment box, external circulation is not needed, and the heat treatment efficiency is improved. And the safety performance is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of seamless steel pipe heat treatment, and specifically relates to an integrated device for seamless steel pipe heat treatment. Background Art

[0002] A steel pipe made of a whole piece of metal with no seams on the surface is called a seamless steel pipe. According to the production method, seamless pipes are divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, extruded pipes, and jacking pipes.

[0003] In the Chinese patent with publication number CN214937689U, the distance between the lower heating tube and the steel tube is adjusted by a driving device to ensure that the distance between the upper heating tube and the lower heating tube and the steel tube is consistent, so that the heating of the upper and lower ends of the steel tube can be consistent, thereby achieving uniform heating of the steel tube;

[0004] However, the device has the following problems when used:

[0005] The device has the following problems during use:

[0006] It only has a heating function, which can heat and keep the steel pipe warm. However, in order to quickly cool down the steel pipe, the steel pipe needs to be taken out of the heating device before the cooling work can be performed. The temperature of the heated steel pipe is too high, and the external cooling process is very dangerous and can easily cause scalding of the staff. Utility Model Content

[0007] The utility model aims to provide an integrated device for heat treatment of seamless steel pipes to solve the problems raised by the above-mentioned background technology.

[0008] To achieve the above purpose, the utility model provides the following technical solutions, including a heat treatment box, a mobile frame and a cooling wastewater collection box, wherein the heat treatment box is fixedly mounted on the bottom plate, a rotating shaft connected to the top of the mobile frame is inserted, the rotating shaft is connected to the steel pipe transposition motor, the rotating shaft is fixedly connected to the transposition frame, and a steel pipe insertion rod for fixing the steel pipe is fixedly mounted on the transposition frame;

[0009] The steel pipe transposition motor drives the transposition frame to rotate, so that the transposition frame has at least two states, wherein the two states are a heating state and a cooling state, and in the heating state, the steel pipe is located between the lower heating mechanism and the upper heating mechanism;

[0010] In the cooling state, the steel pipe is located below the cooling liquid nozzle, and the cooling liquid nozzle is connected to the cooling liquid storage tank through the cooling pipeline and the cooling power pump;

[0011] The cooling wastewater collection box is provided with a steel pipe oxide screening mechanism, which is used to remove solid oxides of the steel pipe mixed in the wastewater;

[0012] The cooling wastewater collection tank is connected to the oil-water separation tank, in which an oil extraction mechanism for extracting oil from the wastewater is installed. The oil-water separation tank is connected to the cooling liquid storage tank through a recovery pump and a recovery pipe.

[0013] Preferably, the steel pipe insertion rod is inserted into the mounting groove in the transposition frame, and the steel pipe insertion rod is fixedly connected to the transposition frame by bolts, and the portion of the steel pipe insertion rod inserted into the inner side of the steel pipe fits against the inner wall of the steel pipe.

[0014] Preferably, a moving mechanism is installed on the bottom plate, and the moving mechanism is used to send the moving rack into the heat treatment box or pull it out of the heat treatment box. An opening and closing box door with an opening and closing function is installed at the position of the heat treatment box corresponding to the moving mechanism.

[0015] Preferably, the moving mechanism includes a slider slidably connected to the guide rail, the slider has a power function, a part of the guide rail is installed in the heat treatment box, and the other part of the guide rail is installed on the bottom plate.

[0016] Preferably, a lower heating mechanism is installed on the movable rack, and an upper heating mechanism is installed at a position corresponding to the upper side of the lower heating mechanism in the heat treatment box.

[0017] Preferably, the steel pipe oxide screening mechanism includes a filter plate arranged in a straight line and inclined manner, an interception frame slidably connected to a cooling wastewater collection box is installed on the upper side of the filter plate, a steel pipe oxide collection box with a height lower than the filter plate is installed on the side of the cooling wastewater collection box, and the interception frame is connected to a telescopic rod for driving it to move along the end surface of the filter plate.

[0018] Preferably, the oil pumping mechanism comprises a floating plate, on which is mounted an oil pumping pipe inserted into the oil layer, and the oil pumping pipe is connected to an oil pump.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model provides a heat treatment box not only with a heating function, but also with a component capable of spraying cooling liquid onto the steel pipe on the side of the heating device. The water sprayed by the component will not directly drip onto the heating mechanism, and rapid cooling of the steel pipe can be achieved. The entire heat treatment process can be carried out in the heat treatment box without the need for external circulation, and the safety performance is greatly improved.

[0021] The utility model can remove steel pipe oxides and oil in wastewater by arranging components such as a cooling wastewater collection box and a steel pipe oxide collection box, and the cooling liquid can be recycled. At the same time, the recovered steel pipe oxides can be recycled, thereby improving the utilization rate of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0024] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0025] Figure 4 It is a schematic diagram of the internal structure of the utility model.

[0026] In the figure: 1. heat treatment box; 2. bottom plate; 3. moving frame; 4. steel pipe transposition motor; 5. steel pipe insertion rod; 6. cooling liquid nozzle; 7. cooling liquid storage box; 8. cooling waste water collection box; 9. filter plate; 10. interception box; 11. telescopic rod; 12. steel pipe oxide collection box; 13. oil-water separation box; 14. floating plate; 15. oil pump; 16. recovery pipe; 17. opening and closing box door; 18. moving mechanism; 19. lower heating mechanism; 20. upper heating mechanism. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-Figure 4 , a seamless steel pipe heat treatment integrated device, including a heat treatment box 1, a mobile frame 3 and a cooling wastewater collection box 8, the heat treatment box 1 is fixedly installed on the bottom plate 2, the top of the mobile frame 3 is inserted with a rotating shaft connected to the steel pipe transposition motor 4, the rotating shaft is fixedly connected to the transposition frame, and a steel pipe plug rod 5 for fixing the steel pipe is fixedly installed on the transposition frame, the steel pipe plug rod 5 is inserted into the installation groove in the transposition frame, and the steel pipe plug rod 5 is fixedly connected to the transposition frame by bolts, and the part of the steel pipe plug rod 5 inserted into the inner side of the steel pipe fits the inner wall of the steel pipe;

[0029] Furthermore, in order to deliver the mobile rack 3 with the steel pipe fixed thereon into the heat treatment box 1 or to extract the heat-treated steel pipe and the mobile rack 3 from the heat treatment box 1, a moving mechanism 18 is installed on the bottom plate 2. The moving mechanism 18 is used to deliver the mobile rack 3 into the heat treatment box 1 or to extract it from the heat treatment box 1. An opening and closing box door 17 with an opening and closing function is installed at the position of the heat treatment box 1 corresponding to the moving mechanism 18. The opening and closing box door 17 adopts an upward opening mode, opens when the mobile rack 3 passes by, and closes when the mobile rack 3 enters the heat treatment box 1 or is extracted from the heat treatment box 1, so as to close the heat treatment box 1 and reduce the loss of heat.

[0030] Specifically, the moving mechanism 18 includes a slider slidably connected to the guide rail, the slider has a power function, a part of the guide rail is installed in the heat treatment box 1, and the other part of the guide rail is installed on the bottom plate 2, and the power function has the function of driving the slider to move along the guide rail;

[0031] Furthermore, in order to allow all parts of the steel pipe to be heated evenly, a lower heating mechanism 19 is installed on the movable frame 3, and an upper heating mechanism 20 is installed at a position corresponding to the upper side of the lower heating mechanism 19 in the heat treatment box 1. The steel pipe transposition motor 4 drives the transposition frame to rotate, so that the transposition frame has at least two states, wherein the two states are a heating state and a cooling state. In the heating state, the steel pipe is located between the lower heating mechanism 19 and the upper heating mechanism 20. When the steel pipe is heated, the steel pipe is located between the upper heating mechanism 20 and the lower heating mechanism 19. The transposition frame for fixing the steel pipe is designed to be rotatable, and the steel pipe transposition motor 4 drives the transposition frame to rotate. The machine 4 can drive the transposition frame and the steel pipe to rotate, and rotate the steel pipe to a position at a distance from the upper heating mechanism 20 and the lower heating mechanism 19. When spraying and cooling the steel pipe, the coolant will not be directly sprayed onto the upper heating mechanism 20 and the lower heating mechanism 19, which can avoid water directly falling on the heating mechanism and avoid the generation of fog (fog can cover the internal vision, making it inconvenient to observe the process of treatment in the heat treatment box 1). In addition, the above-mentioned cooling process is the cooling of the steel pipe after the initial heating and insulation for a period of time. The subsequent tempering process mostly adopts a slow cooling method instead of a water cooling method;

[0032] Specifically, in the cooling state, the steel pipe is located below the cooling liquid nozzle 6, and the cooling liquid nozzle 6 is connected to the cooling liquid storage tank 7 through the cooling pipeline and the cooling power pump;

[0033] In order to collect and recycle the coolant used to cool the steel pipe, it is called turbid ring water here. When the turbid ring water cools the steel pipe, it will take away the waste formed on the outer surface of the steel pipe due to oxidation. This part of the waste enters the cooling waste water collection box 8 below the cooling liquid nozzle 6 together with the turbid ring water. A steel pipe oxide screening mechanism is installed in the cooling waste water collection box 8. The steel pipe oxide screening mechanism is used to remove the solid oxides of the steel pipe mixed in the waste water. The steel pipe oxide screening mechanism includes a filter plate 9 arranged in a straight line and tilted. An interception frame 10 slidably connected to the cooling waste water collection box 8 is installed on the upper side of the filter plate 9. A steel pipe oxide collection box 12 with a height lower than the filter plate 9 is installed on the side of the cooling waste water collection box 8. The interception frame 10 is connected to a telescopic rod 11 used to drive it to move along the upper end surface of the filter plate 9;

[0034] Furthermore, in order to extract the oil mixed in the wastewater in the cooling wastewater collection box 8 (cooling oil and other oils used in the steel pipe processing process), the cooling wastewater collection box 8 is connected to the oil-water separation box 13, and the oil-water separation box 13 is equipped with an oil pumping mechanism for extracting oil from the wastewater. The oil pumping mechanism includes a floating plate 14, and the floating plate 14 floats on the wastewater liquid surface. An oil pumping pipe aligned with the oil layer is installed on the floating plate 14, and the oil pumping pipe is connected to the oil pump 15. The oil-water separation box 13 is connected to the cooling liquid storage tank 7 through a recovery pump and a recovery pipe 16.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated device for heat treatment of seamless steel pipes, comprising a heat treatment box (1), a movable frame (3) and a cooling wastewater collection box (8), characterized in that: The heat treatment box (1) is fixedly mounted on the bottom plate (2), a rotating shaft is inserted through the top of the moving frame (3), the rotating shaft is connected to the steel pipe transposition motor (4), the rotating shaft is fixedly connected to the transposition frame, and a steel pipe insertion rod (5) for fixing the steel pipe is fixedly mounted on the transposition frame; The steel pipe transposition motor (4) drives the transposition frame to rotate, so that the transposition frame has at least two states, wherein the two states are a heating state and a cooling state, and in the heating state, the steel pipe is located between the lower heating mechanism (19) and the upper heating mechanism (20); In the cooling state, the steel pipe is located below the cooling liquid nozzle (6); the cooling liquid nozzle (6) is connected to the cooling liquid storage tank (7) through the cooling pipeline and the cooling power pump; The cooling wastewater collection box (8) is provided with a steel pipe oxide screening mechanism, which is used to remove solid oxides of the steel pipe mixed in the wastewater; The cooling wastewater collection box (8) is connected to the oil-water separation box (13), and an oil extraction mechanism for extracting oil from the wastewater is installed in the oil-water separation box (13). The oil-water separation box (13) is connected to the cooling liquid storage box (7) via a recovery pump and a recovery pipe (16).

2. The integrated heat treatment device for seamless steel pipe according to claim 1, characterized in that: The steel pipe insertion rod (5) is inserted into the installation groove in the transposition frame, and the steel pipe insertion rod (5) is fixedly connected to the transposition frame by bolts, and the part of the steel pipe insertion rod (5) inserted into the inner side of the steel pipe is in contact with the inner wall of the steel pipe.

3. The integrated heat treatment device for seamless steel pipe according to claim 1, characterized in that: A moving mechanism (18) is installed on the bottom plate (2), and the moving mechanism (18) is used to send the moving rack (3) into the heat treatment box (1) or to pull it out of the heat treatment box (1). An opening and closing box door (17) with an opening and closing function is installed at a position of the heat treatment box (1) corresponding to the moving mechanism (18).

4. The integrated heat treatment device for seamless steel pipe according to claim 3, characterized in that: The moving mechanism (18) comprises a slider slidably connected to the guide rail, the slider having a power function, a part of the guide rail being installed in the heat treatment box (1), and the other part of the guide rail being installed on the bottom plate (2).

5. The integrated heat treatment device for seamless steel pipe according to claim 1, characterized in that: A lower heating mechanism (19) is installed on the movable frame (3), and an upper heating mechanism (20) is installed at a position corresponding to the upper side of the lower heating mechanism (19) in the heat treatment box (1).

6. The integrated heat treatment device for seamless steel pipe according to claim 1, characterized in that: The steel pipe oxide screening mechanism comprises a filter plate (9) arranged in a straight line and inclined, an interception frame (10) slidably connected to a cooling wastewater collection box (8) is installed on the upper side of the filter plate (9), a steel pipe oxide collection box (12) whose height is lower than that of the filter plate (9) is installed on the side of the cooling wastewater collection box (8), and the interception frame (10) is connected to a telescopic rod (11) for driving it to move along the upper end surface of the filter plate (9).

7. The integrated heat treatment device for seamless steel pipe according to claim 1, characterized in that: The oil pumping mechanism comprises a floating plate (14), on which is mounted an oil pumping pipe inserted into the oil layer, the oil pumping pipe being connected to an oil pump (15).

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