阅读说明：本技术 一种复合钢淬火设备 (Composite steel quenching equipment ) 是由 汪园青 钱龙 袁帅 于 2021-07-02 设计创作，主要内容包括：本发明公开了一种复合钢淬火设备,包括淬火箱体,所述淬火箱体顶部贯穿并滑动连接有四个滑杆,所述淬火箱体内部设有浮渣处理装置,所述浮渣处理装置顶部设有两个尺寸调节装置,所述浮渣处理装置底部设有过滤喷洒装置；所述浮渣处理装置包括与滑杆固定连接的异形长块,所述异形长块内部开有多个呈线性阵列分布的过滤槽。本发明通过浮渣处理装置,使得每次钢管淬火,滑杆带动浮渣处理装置上升时,都会将淬火液表面的浮渣吸入收集管内过滤储存,通过过滤喷洒装置,使得滑杆在下降时会将淬火液吸入空心柱体内,淬火完毕,钢管从淬火液内上升时,会将过滤好的淬火液从喷头内喷出,对钢管表面的杂质进行冲洗。(The invention discloses composite steel quenching equipment which comprises a quenching box body, wherein the top of the quenching box body is penetrated through and is connected with four sliding rods in a sliding manner, a scum treatment device is arranged in the quenching box body, two size adjusting devices are arranged at the top of the scum treatment device, and a filtering and spraying device is arranged at the bottom of the scum treatment device; the scum treatment device comprises a special-shaped long block fixedly connected with the slide bar, and a plurality of filter tanks distributed in a linear array are arranged in the special-shaped long block. The floating slag treatment device is used for sucking floating slag on the surface of quenching liquid into the collecting pipe for filtering and storing when the floating slag treatment device is driven by the sliding rod to ascend by the sliding rod each time the steel pipe is quenched, and the quenching liquid is sucked into the hollow column body by the filtering and spraying device when the sliding rod descends, so that after quenching is finished, the filtered quenching liquid is sprayed out from the spray head when the steel pipe ascends from the quenching liquid, and impurities on the surface of the steel pipe are washed.)

1. The utility model provides a compound steel quenching equipment, includes quenching box (1), its characterized in that: the top of the quenching box body (1) is connected with four sliding rods (2) in a penetrating and sliding mode, a scum treatment device (3) is arranged inside the quenching box body (1), two size adjusting devices (4) are arranged at the top of the scum treatment device (3), and a filtering and spraying device (5) is arranged at the bottom of the scum treatment device (3);

dross processing apparatus (3) include with slide bar (2) fixed connection's special-shaped long block (6), special-shaped long block (6) inside is opened has a plurality of filter-tanks (7) that are linear array and distribute, the top rotates in filter-tank (7) and is connected with foam baffle (8), inside torsional spring (9) that is equipped with of filter-tank (7), torsional spring (9) one end and foam baffle (8) bottom surface fixed connection, torsional spring (9) other end and special-shaped long block (6) fixed connection, special-shaped long block (6) bottom sliding connection has collecting pipe (10), collecting pipe (10) bottom fixedly connected with filter screen (11).

2. The composite steel quenching apparatus as claimed in claim 1, wherein: the filtering and spraying device (5) comprises a hollow cylinder body (12) fixedly connected with the bottom of a quenching box body (1), a piston (13) is connected to the inside of the hollow cylinder body (12) in a sliding manner, a slide rod (2) penetrates through the top of the hollow cylinder body (12) and is connected with the hollow cylinder body (12) in a sliding manner, the bottom end of the slide rod (2) is fixedly connected with the piston (13), a first one-way valve (14) is fixedly connected to the top of one side of the outer peripheral surface of the hollow cylinder body (12), a water inlet pipe (15) is fixedly connected to the top of the other side of the outer peripheral surface of the hollow cylinder body (32), a second one-way valve (16) is fixedly connected to one end, far away from the hollow cylinder body (12), of the water inlet pipe (15) is fixedly connected with a filter cartridge (17), one end, fixedly connected with a water outlet pipe (18) is far away from the filter cartridge (17), one end, fixedly connected with a long pipe (19) is far away from the water outlet pipe (18), the outer peripheral surface of the long pipe (19) is fixedly connected with a plurality of spray heads (20) which are distributed in a linear array at one side close to the scum treatment device (3).

3. The composite steel quenching apparatus as claimed in claim 2, wherein: the size adjusting device (4) comprises positioning rods (21) fixedly connected with two ends of the top of the special-shaped long block (6), the positioning rods (21) are connected with two symmetrically distributed sliding blocks (22) in a sliding mode, two ends of each positioning rod (21) are connected with threaded rods (23) in a penetrating and rotating mode, the threaded rods (23) are in threaded connection with the sliding blocks (22), one ends, far away from the sliding blocks (22), of the threaded rods (23) are fixedly connected with knobs (24), one sides of the outer walls of the sliding blocks (22) are connected with first rods (25) in a rotating mode, one ends, far away from the sliding blocks (22), of the first rods (25) are connected with second rods (26) in a rotating mode, one ends of the second rods (26) are connected with the positioning rods (21) in a rotating mode, the other ends of the second rods (26) are connected with transmission shafts (27) in a rotating mode, and the outer peripheral faces of the transmission shafts (27) are fixedly connected with a plurality of cylinders (28) distributed in a linear array mode, the outer peripheral surface of the cylinder (28) is provided with external threads.

4. The composite steel quenching apparatus as claimed in claim 3, wherein: the second pole (26) are kept away from cylinder (28) one side fixedly connected with transfer line (29), second pole (26) one end fixedly connected with third pole (30) are kept away from in transfer line (29), transfer line (29) one end fixedly connected with waterproof motor (31) are kept away from in third pole (30), waterproof motor (31) output shaft top and transmission shaft (27) fixed connection.

5. The composite steel quenching apparatus as claimed in claim 2, wherein: the quenching box body (1) outer wall one side fixedly connected with hollow post (32), hollow post (32) outer peripheral face winding has induction coil (33), induction coil (33) and external electromagnetic heating equipment fixed connection, cylinder (28) top rolling connection remains the quenching steel pipe.

6. The composite steel quenching apparatus as claimed in claim 2, wherein: quenching box (1) top fixedly connected with two Jiong shaped plates (34), Jiong shaped plate (34) bottom fixedly connected with two symmetric distribution's pneumatic cylinder (35), pneumatic cylinder (35) output shaft top and slide bar (2) fixed connection, quenching box (1) outer wall one side fixedly connected with outlet pipe (18).

Technical Field

The invention relates to the technical field of steel quenching, in particular to composite steel quenching equipment.

Background

The quenching equipment mainly comprises a quenching machine tool, a medium-high frequency power supply and a cooling device; the quenching machine tool comprises a machine body, a feeding and discharging mechanism, a clamping and rotating mechanism, a quenching transformer, a resonant tank circuit, a cooling system, a quenching liquid circulating system, an electric control system and the like, and is generally a single station; the quenching machine tool is structurally divided into a vertical type quenching machine tool and a horizontal type quenching machine tool, a user can select the quenching machine tool according to a quenching process, a special quenching machine tool can be designed and manufactured according to the heating process requirement for special parts or special processes, the quenching is usually carried out on thin-wall steel pipes in a mode of spraying cooling liquid through pipelines, and the quenching is usually carried out on thick-wall steel pipes in a quenching tank.

At present, a plurality of factories use a nitrate quenching process to quench steel, in the process of long-time use of quenching liquid, certain impurities, part of precipitates and part of suspended matters are necessarily present in nitrate, the excessive impurities easily affect the quenching quality of the steel, and when the steel is taken out from a quenching tank after quenching is finished, part of the impurities in the liquid are adhered to the surface of the steel, so that the impurities on the surface of the steel need to be cleaned subsequently and then can be stored.

Therefore, it is necessary to develop a composite steel quenching apparatus to solve the above problems.

The above information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

The invention aims to provide composite steel quenching equipment, which is used for treating scum on the liquid level of quenching liquid a through a scum treatment device, treating impurities in the quenching liquid through a filtering and spraying device and washing the surface of a steel pipe so as to overcome the defects in the technology.

In order to achieve the above purpose, the invention provides the following technical scheme: the composite steel quenching equipment comprises a quenching box body, wherein the top of the quenching box body is penetratingly and slidably connected with four sliding rods, a scum treatment device is arranged inside the quenching box body, two size adjusting devices are arranged at the top of the scum treatment device, and a filtering and spraying device is arranged at the bottom of the scum treatment device;

the scum treatment device comprises a special-shaped long block fixedly connected with a sliding rod, a plurality of filter tanks distributed in a linear array are arranged inside the special-shaped long block, a foam baffle is rotatably connected to the top in each filter tank, a torsion spring is arranged inside each filter tank, one end of each torsion spring is fixedly connected with the bottom surface of the foam baffle, the other end of each torsion spring is fixedly connected with the special-shaped long block, a collecting pipe is slidably connected to the bottom of the special-shaped long block, and a filter screen is fixedly connected to the bottom of the collecting pipe.

Preferably, filter sprinkler include with quenching bottom of the case fixed connection's hollow cylinder, the inside sliding connection of hollow cylinder has the piston, the slide bar run through hollow cylinder top and with hollow cylinder sliding connection, slide bar bottom and piston fixed connection, the first check valve of hollow cylinder outer peripheral face one side top fixedly connected with, hollow cylinder outer peripheral face opposite side top fixedly connected with inlet tube, hollow cylinder one end fixedly connected with second check valve is kept away from to the inlet tube, second check valve top fixedly connected with cartridge filter, inlet tube one end fixedly connected with outlet pipe is kept away from to the cartridge filter, cartridge filter one end fixedly connected with rectangular pipe is kept away from to the outlet pipe, rectangular pipe global is close to the shower nozzle that a plurality of linear array of dross processing apparatus one side fixedly connected with distribute.

Preferably, size adjustment device include with special-shaped long piece top both ends fixed connection's locating lever, locating lever sliding connection has the slider of two symmetric distributions, the locating lever both ends are run through and are had the threaded rod, threaded rod and slider threaded connection, slider one end fixedly connected with knob are kept away from to the threaded rod, slider outer wall one side is rotated and is connected with first pole, first pole is kept away from slider one end and is rotated and be connected with the second pole, second pole one end is rotated with the locating lever and is connected, the second pole other end is rotated and is connected with the transmission shaft, a plurality of cylinders that are linear array and distribute of transmission shaft outer peripheral face fixedly connected with, the cylinder outer peripheral face is opened there is the external screw thread.

Preferably, the second rod is far away from cylinder one side fixedly connected with transfer line, the transfer line is far away from second rod one end fixedly connected with third pole, transfer line one end fixedly connected with waterproof motor is kept away from to the third pole, waterproof motor output shaft top and transmission shaft fixed connection.

Preferably, one side of the outer wall of the quenching box body is fixedly connected with a hollow column, the outer peripheral surface of the hollow column is wound with an induction coil, the induction coil is fixedly connected with external electromagnetic heating equipment, and the top of the cylinder is in rolling connection with a steel pipe to be quenched.

Preferably, the top of the quenching box body is fixedly connected with two Jiong-shaped plates, the bottom of the Jiong-shaped plate is fixedly connected with two symmetrically distributed hydraulic cylinders, the top end of an output shaft of each hydraulic cylinder is fixedly connected with a sliding rod, and one side of the outer wall of the quenching box body is fixedly connected with a water outlet pipe.

In the technical scheme, the invention provides the following technical effects and advantages:

1. the scum treatment device is used for sucking scum on the surface of quenching liquid into the collecting pipe for storage when the scum treatment device is driven by the slide bar to ascend by the scum treatment device during each quenching of the steel pipe, so that the content of the scum in the quenching liquid is reduced, and the quenching quality is improved;

2. through the filtering and spraying device, when the sliding rod descends, the quenching liquid can be sucked into the hollow column, after quenching is finished, when the steel pipe ascends from the quenching liquid, the filtered quenching liquid can be sprayed out of the spray head to wash impurities on the surface of the steel pipe, manual subsequent cleaning is not needed, the steel pipe can be stored, and meanwhile, the impurities in the quenching liquid are further collected and filtered;

3. through the size adjusting device, the device can adapt to steel pipes with different pipe diameters and is used for quenching steel pipes with different specifications.

Drawings

For a clearer explanation of the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a side view of the internal structure of the quenching tank of the invention;

fig. 3 is a partial sectional view of a dross handling apparatus of the invention;

fig. 4 is a schematic view of the dross processing apparatus of the invention connected to a size adjustment apparatus;

FIG. 5 is an enlarged view of the portion A of FIG. 3 according to the present invention;

FIG. 6 is an enlarged view of the portion B of FIG. 3 according to the present invention;

FIG. 7 is an enlarged view of the structure of the portion C of FIG. 4 according to the present invention.

Description of reference numerals:

1 quenching box body, 2 slide bars, 3 scum treatment device, 4 size adjusting device, 5 filtering and spraying device, 6 special-shaped long block, 7 filtering tank, 8 foam baffle, 9 torsion spring, 10 collecting pipe, 11 filtering net, 12 hollow cylinder, 13 piston, 14 first check valve, 15 water inlet pipe, 16 second check valve, 17 filtering cylinder, 18 water outlet pipe, 19 long pipe, 20 spray head, 21 positioning rod, 22 slide block, 23 threaded rod, 24 knob, 25 first rod, 26 second rod, 27 transmission shaft, 28 cylinder, 29 transmission rod, 30 third rod, 31 waterproof motor, 32 hollow cylinder, 33 induction coil, 34 Jiong shaped plate, 35 hydraulic cylinder, a, quenching liquid b and water inlet.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, steps, and so forth. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

The invention provides composite steel quenching equipment as shown in figures 1-7, which comprises a quenching box body 1, wherein the top of the quenching box body 1 is penetrated through and is connected with four sliding rods 2 in a sliding manner, a scum treatment device 3 is arranged in the quenching box body 1, two size adjusting devices 4 are arranged at the top of the scum treatment device 3, and a filtering and spraying device 5 is arranged at the bottom of the scum treatment device 3;

the scum treatment device 3 comprises a special-shaped long block 6 fixedly connected with the slide bar 2, a plurality of filter tanks 7 distributed in a linear array are arranged in the special-shaped long block 6, the top of the filter tank 7 is rotatably connected with a foam baffle 8, a torsion spring 9 is arranged in the filter tank 7, one end of the torsion spring 9 is fixedly connected with the bottom surface of the foam baffle 8, the other end of the torsion spring 9 is fixedly connected with the special-shaped long block 6, the bottom of the special-shaped long block 6 is connected with a collecting pipe 10 in a sliding way, the bottom of the collecting pipe 10 is fixedly connected with a filter screen 11, when the special-shaped long block 6 descends, the quenching liquid a enters the top of the special-shaped long block 6, when the special-shaped long block 6 rises, the quenching liquid a drives the foam baffle 8 to rotate, the foam baffle 8 drives the torsion spring 9 to contract, the quenching liquid a with scum enters the filter tank 7, and the quenching liquid a flows out from the bottom of the filter screen 11 after being filtered;

the filtering and spraying device 5 comprises a hollow cylinder 12 fixedly connected with the bottom of the quenching box body 1, a piston 13 is connected inside the hollow cylinder 12 in a sliding manner, a slide rod 2 penetrates through the top of the hollow cylinder 12 and is connected with the hollow cylinder 12 in a sliding manner, the bottom end of the slide rod 2 is fixedly connected with the piston 13, a first one-way valve 14 is fixedly connected with the top of one side of the outer peripheral surface of the hollow cylinder 12, a water inlet pipe 15 is fixedly connected with the top of the other side of the outer peripheral surface of the hollow cylinder 32, one end of the water inlet pipe 15 far away from the hollow cylinder 12 is fixedly connected with a second one-way valve 16, the top of the second one-way valve 16 is fixedly connected with a filter cylinder 17, one end of the filter cylinder 17 far away from the water inlet pipe 15 is fixedly connected with a water outlet pipe 18, one end of the water outlet pipe 18 far away from the filter cylinder 17 is fixedly connected with a long pipe 19, one side of the outer peripheral surface of the long pipe 19, which is close to the scum treatment device 3, is fixedly connected with a plurality of spray heads 20 which are distributed in a linear array manner, when the steel pipe quenches, the slide bar 2 drives the piston 13 to descend, the quenching liquid a with impurities enters the hollow cylinder 12 from the first one-way valve 14, after the steel pipe quenches, the slide bar 2 drives the piston 13 to ascend, the quenching liquid a inside the hollow cylinder 12 sequentially enters the filter cylinder 17 through the water inlet pipe 15 and the second one-way valve 16, the completely filtered quenching liquid a in the filter cylinder 17 sequentially passes through the water outlet pipe 18 and the strip pipe 19, then the steel pipe is sprayed out of the spray head 20, the impurities on the surface of the steel pipe are washed, and the steel pipe is convenient to store.

Further, in the above technical solution, the size adjusting device 4 includes a positioning rod 21 fixedly connected to two ends of the top of the special-shaped long block 6, the positioning rod 21 is slidably connected to two symmetrically distributed sliding blocks 22, two ends of the positioning rod 21 are connected to a threaded rod 23 in a penetrating manner, the threaded rod 23 is in threaded connection with the sliding blocks 22, one end of the threaded rod 23 away from the sliding blocks 22 is fixedly connected to a knob 24, one side of the outer wall of the sliding blocks 22 is rotatably connected to a first rod 25, one end of the first rod 25 away from the sliding blocks 22 is rotatably connected to a second rod 26, one end of the second rod 26 is rotatably connected to the positioning rod 21, the other end of the second rod 26 is rotatably connected to a transmission shaft 27, the outer peripheral surface of the transmission shaft 27 is fixedly connected to a plurality of cylinders 28 distributed in a linear array, the outer peripheral surface of the cylinders 28 is provided with external threads, and the knob 24 drives the threaded rod 23 to rotate by rotating the knob 24, threaded rod 23 drives slider 22 and slides in locating lever 21, and slider 22 drives first pole 25 and rotates, and first pole 25 drives second pole 26 and rotates, and second pole 26 drives transmission shaft 27, and transmission shaft 27 drives cylinder 28 and is close to each other to the steel pipe of different pipe diameters adapts to.

Further, in the above technical scheme, one side of the second rod 26, which is far away from the cylinder 28, is fixedly connected with a transmission rod 29, one end of the transmission rod 29, which is far away from the second rod 26, is fixedly connected with a third rod 30, one end of the third rod 30, which is far away from the transmission rod 29, is fixedly connected with a waterproof motor 31, the top end of an output shaft of the waterproof motor 31 is fixedly connected with a transmission shaft 27, the transmission shaft 27 is driven to rotate by the waterproof motor 31, and the steel pipe at the top of the cylinder 28 can move while rotating by utilizing the forward rotation and the reverse rotation of the waterproof motor 31 to match with the external thread on the peripheral surface of the cylinder 28, so that the nozzle 20 can clean impurities on the surface of the steel pipe, and can take out and put in the quenched steel pipe from the quenching box 1 conveniently.

Further, in the above technical scheme, one side of the outer wall of the quenching box body 1 is fixedly connected with a hollow column 32, the outer peripheral surface of the hollow column 32 is wound with an induction coil 33, the induction coil 33 is fixedly connected with external electromagnetic heating equipment, the top of the cylinder 28 is connected with a steel pipe to be quenched in a rolling manner, a high-density magnetic field is generated in the induction coil through the electromagnetic heating equipment, a very large eddy current is generated in the steel pipe, and the steel pipe is heated electromagnetically by self internal resistance.

Further, in the above technical solution, the top of the quenching box body 1 is fixedly connected with two Jiong-shaped plates 34, the bottom of the Jiong-shaped plate 34 is fixedly connected with two hydraulic cylinders 35 which are symmetrically distributed, the top end of the output shaft of the hydraulic cylinder 35 is fixedly connected with the slide bar 2, one side of the outer wall of the quenching box body 1 is fixedly connected with a water outlet pipe 18, the hydraulic cylinder 35 is supported by the Jiong-shaped plate 34, the hydraulic cylinder 35 is used for providing output power, so as to drive the scum treatment device 3 and the filtering and spraying device 5 to work, and the steel pipe quenching step is realized by matching with the size adjusting device 4, the external feeding device and the taking device.

The implementation mode is specifically as follows: firstly, the knob 24 is rotated to adjust the distance between the two cylinders 28, so that the steel pipe can be supported, then the quenching liquid a is introduced into the quenching box body 1, during the work, an external feeding mechanism is utilized to penetrate the steel pipe into the hollow cylinder 32, and the motor and the electromagnetic heating equipment are started, the motor drives the cylinders 28 to rotate through the output shaft, the external threads on the cylinders 28 are utilized to drive the steel pipe to enter the quenching box body 1 while rotating, the steel pipe is heated when passing through the induction coil 33, the motor is turned off after the heated steel pipe completely enters the quenching box body 1, so that the output shaft of the hydraulic cylinder 35 is extended to drive the slide rod 2 to descend, the slide rod 2 drives the scum treatment device 3 to descend and drive the piston 13 to descend, the quenching liquid a is sucked into the hollow cylinder 32, after the quenching of the steel pipe is finished, the output shaft of the hydraulic cylinder 35 drives the slide rod 2 to ascend, and the quenching liquid a drives the foam baffle 8 to rotate, the quenching liquid a enters the filter tank 7, then flows out through the filter screen 11, impurities are stored in the collecting pipe 10, meanwhile, the motor is started to intermittently rotate forwards and backwards, when the piston 13 is driven by the slide bar 2 to slide upwards, the filtered quenching liquid a in the filter cylinder 17 is sprayed out from the spray head 20 to wash the impurities on the surface of the steel pipe, then the motor drives the cylinder 28 to move the steel pipe out of the quenching box body 1 to complete quenching of the steel pipe, the scum treatment device 3 is used for quenching the steel pipe each time, when the scum treatment device 3 is driven by the slide bar 2 to ascend, the scum on the surface of the quenching liquid a is sucked into the collecting pipe 10 to be stored, the content of the scum in the quenching liquid a is reduced, the quenching quality is improved, when the slide bar 2 descends, the quenching liquid a is sucked into the hollow cylinder 12 through the filter spraying device 5, after quenching, the steel pipe ascends from the quenching liquid a, the filtered quenching liquid a is sprayed out from the spray head 20 to flush impurities on the surface of the steel pipe without manual subsequent cleaning, can be stored, and simultaneously, the impurities in the quenching liquid a are further collected and filtered, and the device can adapt to steel pipes with different pipe diameters for quenching of steel pipes with different specifications through the size adjusting device 4, the embodiment specifically solves the problems that in the prior art, a plurality of factories use the nitrate quenching process to quench steel, and in the process of long-time use of the quenching liquid a, the nitrate salt must have certain impurities, part is precipitate, part is suspended matter, and the excessive impurities easily affect the quenching quality of steel, and when the steel is taken out from the quenching tank after quenching, part of impurities in the liquid are adhered to the surface of the steel, so that the impurities on the surface of the steel need to be cleaned subsequently and then can be stored.

The working principle of the invention is as follows:

referring to the attached drawings 1-7 of the specification, firstly, a knob 24 is rotated to adjust the distance between two cylinders 28, so that a steel pipe can be supported, then quenching liquid a is introduced into a quenching box body 1, during operation, an external feeding mechanism is utilized to penetrate the steel pipe into a hollow cylinder 32, a motor and an electromagnetic heating device are started, the motor drives the cylinders 28 to rotate through an output shaft, external threads on the cylinders 28 are utilized to drive the steel pipe to enter the quenching box body 1 while rotating, the steel pipe is heated when passing through an induction coil 33, the motor is turned off after the heated steel pipe completely enters the quenching box body 1, an output shaft of a hydraulic cylinder 35 is extended to drive a slide rod 2 to descend, the slide rod 2 drives a scum treatment device 3 to descend and a piston 13 to descend, the quenching liquid a is sucked into the hollow cylinder 32, after the quenching of the steel pipe is finished, the output shaft of the hydraulic cylinder 35 drives the slide rod 2 to ascend, at the moment, the quenching liquid a drives a foam baffle 8 to rotate, the quenching liquid a enters the filter tank 7, then flows out through the filter screen 11, impurities are stored in the collecting pipe 10, meanwhile, the motor is started to rotate intermittently and positively, when the piston 13 is driven by the slide rod 2 to slide upwards, the filtered quenching liquid a in the filter cylinder 17 is sprayed out from the spray head 20 to wash the impurities on the surface of the steel pipe, and then the motor drives the cylinder 28 to move the steel pipe out of the quenching box body 1, so that the quenching of the steel pipe is completed.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.