Quenching oil filtering device

By combining a cylindrical sleeve-shaped filter cage and filter paper, the problem of impurity clogging in quenching oil filtration is solved, achieving low-cost and high-efficiency quenching oil filtration, reducing the frequency of filter plate replacement, and improving filtration efficiency.

CN121891827APending Publication Date: 2026-04-21HAI NING SHANG TONG YOU BI SHENG ZHOU CHENG YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HAI NING SHANG TONG YOU BI SHENG ZHOU CHENG YOU XIAN GONG SI
Filing Date
2026-02-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing quenching oil filtration methods are easily clogged by impurities, requiring frequent replacement of filter plates and increasing the cost of filtration.

Method used

It adopts a cylindrical sleeve-shaped filter cage and filter paper covering its outer perimeter, combined with a sealing plate to seal the top. The oil outlet is located inside the filter cage and is connected. With the help of connecting components, the filter cage can be stably installed and easily disassembled. Multiple filter components are installed inside the tank to improve efficiency.

Benefits of technology

It effectively filters impurities such as oxide scale and carbon black, reducing filtration costs, improving filtration efficiency, and facilitating the replacement and maintenance of filter components.

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Abstract

The invention relates to a quenching oil filtering device, and relates to the field of filtering equipment, the quenching oil filtering device comprises a tank body and a filtering assembly located in the tank body, the filtering assembly comprises a cylindrical sleeve-shaped filtering cage, a sealing plate and filtering paper, the filtering cage is detachably connected in the tank body, the sealing plate is fixed at the top of the filtering cage to seal the filtering cage, the filtering paper wraps the peripheral wall of the filtering cage, and the sealing plate is fixed on the sealing plate. An oil outlet hole in the bottom wall of the tank body is communicated with the interior of the filter cage, structures such as connecting assemblies, a supporting frame body and a discharging assembly are further arranged, and a plurality of filter assemblies and connecting assemblies can be arranged. The method has the effect of reducing the production cost.
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Description

Technical Field

[0001] This application relates to the field of filtration equipment, and more particularly to a quenching oil filtration device. Background Technology

[0002] In the metal heat treatment industry, quenching plays a crucial role. The stability of the quenching oil, widely used in the process, is key to the quenching effect. Quenching oil used for extended periods is prone to impurities, which can affect its cooling performance, becoming a critical factor hindering further improvement in heat treatment quality. Therefore, how to effectively treat used quenching oil and restore its performance has become an important problem urgently needing to be solved in the industry.

[0003] Currently, the industry commonly uses filtration to improve the performance of quenching oil that has become contaminated with impurities after use. In practice, a filter plate is placed in a filtration container, and the oil to be filtered is poured into the container, ensuring it is above the filter plate. The filtered oil then gradually seeps into the filter plate and flows downwards along the holes, thus achieving filtration. This filtration method can remove impurities from the quenching oil to a certain extent, allowing it to be reused and preventing the increased costs associated with frequent oil changes. This filtration method has been the mainstream practice in the industry for a long time and has played a vital role in practical applications.

[0004] However, the existing method of filtering quenching oil using filter plates has significant drawbacks. Because the filter plates gradually become clogged with impurities during use, they require frequent replacement, which increases the cost of filtering quenching oil. Summary of the Invention

[0005] To reduce production costs, this application provides a quenching oil filtration device.

[0006] The quenching oil filtration device provided in this application adopts the following technical solution: A quenching oil filtration device, comprising: The tank body, wherein the depth direction of the tank body is a first direction; And, a filter assembly located within the tank, the filter assembly comprising: A cylindrical sleeve-shaped filter cage, which is detachably connected to the tank body; A sealing plate, which is fixedly connected to the top of the filter cage and is used to close the top of the filter cage; And, filter paper, which covers the outer peripheral wall of the filter cage; The bottom wall of the tank is provided with an oil outlet hole, which is located inside the filter cage and communicates with the interior of the filter cage.

[0007] By adopting the above technical solution, the quenching oil is filtered using a cylindrical sleeve-shaped filter cage and filter paper covering its outer perimeter, which can effectively filter impurities such as oxide scale and carbon black; the sealing plate closes the top of the filter cage, making the quenching oil filtered more orderly; the filter cage can be removed from the tank, which is convenient for cleaning or replacing the filter paper, reducing costs, and the oil outlet is located inside the filter cage and connected to it, so that the filtered oil can be discharged smoothly.

[0008] Optionally, it also includes a connecting component, through which the filter assembly is connected to the tank, the connecting component comprising: A core rod parallel to the first direction, the filter cage coaxially sleeved on the outer periphery of the core rod, the sealing plate having a through hole along the first direction, one end of the core rod being fixedly connected to the bottom of the tank body, and the other end passing through the filter cage and the through hole and extending to the top of the filter cage.

[0009] By adopting the above technical solution, the tank, filter cage, sealing plate, filter paper and oil outlet can be used to filter quenching oil, reducing filtration costs; the core rod in the connecting assembly can accurately guide the filter cage to be installed in place, ensuring the filter cage is installed in a precise position, and facilitating the installation and disassembly of the filter assembly, making it convenient to replace and maintain the filter assembly.

[0010] Optionally, the connection component further includes: A locking member is located above the sealing plate, and the locking member has a threaded hole extending through it in a first direction. The core rod passes through the threaded hole and is threadedly connected to the locking member. The filter cage is pressed between the bottom wall of the tank and the locking member.

[0011] By adopting the above technical solution, the locking component is threadedly connected to the core rod and the filter cage is pressed between the bottom wall of the tank and the locking component, so that the filter cage can be stably installed in the tank, preventing the filter cage from shaking or shifting during the filtration process and ensuring the stability of the filtration effect.

[0012] Optionally, the top of the tank is provided with an upper opening through which the filter cage passes in a first direction.

[0013] By adopting the above technical solution, the upper opening facilitates the filter cage to pass through the tank in the first direction, making it easy to install and disassemble the filter cage.

[0014] Optionally, the tank body is provided with an oil inlet at the bottom.

[0015] By adopting the above technical solution, quenching oil can enter the tank from the oil inlet at the bottom of the tank and be filtered by the filter component in the middle of the tank. The bottom oil inlet facilitates full contact between the quenching oil and the filter component, thereby improving the filtration effect.

[0016] Optionally, the tank body is provided with a plurality of filter components and a plurality of connection components, and each filter component is connected to the tank body through a corresponding connection component.

[0017] By adopting the above technical solution, the arrangement of multiple filter components and connecting components can improve filtration efficiency.

[0018] Optionally, it also includes a support frame and a discharge assembly, the discharge assembly being connected above the tank via the support frame; the discharge assembly includes: A horizontal bar located above the upper opening; In addition, a winch with a rope is fixedly connected to the crossbar, and a hook is connected to the end of the rope. A hanging ring is fixedly connected to the filter cage and / or the sealing plate, and the hook is used to hang the hanging ring.

[0019] By adopting the above technical solution, the filter assembly can be easily and quickly removed from the tank using the winch, rope, hook on the crossbar, and the hanging ring on the filter cage and / or sealing plate, which facilitates replacement or cleaning operations and improves work efficiency.

[0020] Optionally, the support frame includes: A support ring is located above the tank body, and the two ends of the crossbar are fixedly connected to the support ring; Multiple hinge rods are evenly distributed around the support ring; one end of each hinge rod is a connecting end and the other end is a free end, and the connecting end of each hinge rod is rotatably connected to the support ring about a first axis, which is a tangent to the support ring. A rope loop is fixedly connected to the free end of the hinge rod; And cables threaded through the plurality of said rope loops, said cables being tied to the outer peripheral wall of the tank.

[0021] By adopting the above technical solution and by setting up cables and hinged rods, the support frame can be installed on tanks of different diameters, thus improving versatility.

[0022] Optionally, the support frame further includes: Multiple diagonal braces, each of the hinged rods having a diagonal brace fixedly connected to its free end, one end of each diagonal brace being hinged to the diagonal brace around a second axis, and the other end being used to support the ground, the second axis being parallel to the first axis; In addition, a stop block is fixedly connected to the hinge rod, and when the stop block abuts against the diagonal brace, the diagonal brace is inclined downward toward the side away from the tank body.

[0023] By adopting the above technical solution, a diagonal brace and a stop block are set at the free end of the hinge rod, so that the diagonal brace leans downward to support the ground, thereby enhancing the overall stability of the support frame and ensuring the stability of the unloading component during operation.

[0024] Optionally, the bottom end of the diagonal brace is provided with casters.

[0025] By adopting the above technical solution, casters are installed at the bottom of the diagonal brace to facilitate the movement and adjustment of the position of the support frame.

[0026] In summary, this application includes at least one of the following beneficial technical effects: The filter assembly uses a filter cage and filter paper, which can effectively filter quenching oil, solve the problem of impurities in quenching oil affecting cooling performance, and at the same time, only the filter paper needs to be replaced each time, saving costs. The filter cage is detachably connected to the tank, making it easy to replace the filter paper and avoiding the high cost caused by frequent replacements like traditional filter plates. Multiple filter components are installed inside the tank to improve the filtration efficiency of the quenching oil. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the tank structure in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the filtering component in an embodiment of this application; Figure 3 yes Figure 2 Enlarged view of section A; Figure 4 This is a schematic diagram of the structure of the support frame and unloading assembly in the embodiments of this application; Figure 5 This is a schematic diagram of the support frame in the embodiments of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Tank body; 11. Support leg; 12. Top opening; 13. Oil inlet; 131. Oil inlet pipe; 14. Oil outlet; 141. Oil outlet pipe; 2. Filter assembly; 21. Filter cage; 22. Sealing plate; 221. Perforation; 23. Filter paper; 24. Hanging ring; 3. Connecting assembly; 31. Core rod; 32. Locking element; 321. Threaded hole; 4. Support frame; 41. Support ring; 42. Hinge rod; 43. Rope loop; 44. Cable; 45. Diagonal brace; 46. Stop block; 47. Caster; 5. Unloading assembly; 51. Crossbar; 52. Winch; 521. Rope; 522. Hook. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0030] This application discloses a quenching oil filtration device. (Refer to...) Figure 1 and Figure 2 The quenching oil filtration device includes a tank body 1 and a filter assembly 2 located inside the tank body 1. Support legs 11 are fixedly connected to the bottom wall of the tank body 1 to support the tank body 1 on the ground. The depth direction of the tank body 1 is a first direction, preferably a vertical direction. The top of the tank body 1 has an upper opening 12 for the filter assembly 2 to pass through along the first direction. The size of the upper opening 12 is sufficient to allow the filter assembly 2 to pass through smoothly. The function of the upper opening 12 is to facilitate the installation and removal of the filter assembly 2. When it is necessary to replace the filter assembly 2, it can be removed or placed through the upper opening 12. The bottom of the tank body 1 has an oil inlet hole 13. To facilitate oil intake, the bottom wall of the tank body 1 is fixed to the oil inlet hole 13 and connected to an oil inlet pipe 131 with a valve, allowing oil to be supplied into the tank body 1 by opening and closing the valve.

[0031] Reference Figure 2 and Figure 3 The filter assembly 2 includes a filter cage 21, a sealing plate 22, and filter paper 23. The filter cage 21 is a cylindrical sleeve, and its material can be stainless steel or other metal materials. The filter cage 21 is detachably connected to the tank body 1. The sealing plate 22 is fixedly connected to the top of the filter cage 21, and its shape usually matches the top of the filter cage 21, generally being circular. The material of the sealing plate 22 can be the same as that of the filter cage 21. The function of the sealing plate 22 is to seal the top of the filter cage 21, preventing quenching oil from overflowing from the top of the filter cage 21, and ensuring that the quenching oil can only be filtered through the filter paper 23.

[0032] Filter paper 23 covers the outer periphery of filter cage 21, effectively intercepting impurities in quenching oil. The material of filter paper 23 can be selected according to specific filtration requirements, such as cotton filter paper 23 or fiber filter paper 23. The filter paper 23 is connected to filter cage 21 by pasting, binding, or other methods to ensure that filter paper 23 is tightly wrapped around the outer periphery of filter cage 21. Oil outlet holes 14 are provided on the bottom wall of tank body 1, located inside filter cage 21 and communicating with the interior of filter cage 21. For easy discharge, an oil outlet pipe 141 with a valve is connected and fixedly connected to each oil outlet hole 14 on the bottom wall of tank body 1. The filtered oil is discharged by opening and closing the valve.

[0033] The combination logic of the filter cage 21, sealing plate 22, and filter paper 23 is as follows: the filter cage 21 provides support for the filter paper 23, enabling it to better perform its filtering function. It is detachably connected inside the tank 1, making it easy to remove and replace the filter paper 23. The sealing plate 22 seals the top of the filter cage 21, and the filter paper 23 is responsible for filtering impurities in the quenching oil, allowing the quenching oil to pass through the filter paper 23 in an orderly manner and finally be discharged from the oil outlet 14.

[0034] Reference Figure 2and Figure 3 In some embodiments of this application, a connecting component 3 is also included. In this embodiment, multiple connecting components 3 and multiple filtering components 2 are provided. Each filtering component 2 is connected to the tank 1 through a connecting component 3. The arrangement of multiple filtering components 2 and connecting components 3 can improve the filtration efficiency and allow more quenching oil to be filtered at the same time. The connecting component 3 includes a core rod 31 parallel to the first direction and a locking member 32 located above the sealing plate 22. The core rod 31 is rod-shaped and parallel to the first direction. The filter cage 21 is coaxially sleeved on the outer periphery of the core rod 31. The sealing plate 22 has a through hole 221 extending through it along the first direction. One end of the core rod 31 is fixedly connected to the bottom of the tank body 1, and the other end extends above the filter cage 21 after passing through the filter cage 21 and the through hole 221. The filter cage 21 is positioned by being sleeved on the outer periphery of the core rod 31. The through hole 221 on the sealing plate 22 cooperates with the core rod 31, so that the sealing plate 22 can be accurately installed on the top of the filter cage 21. The locking member 32 has a threaded hole 321 extending through it in a first direction. The core rod 31 passes through the threaded hole 321 in the first direction and is threadedly connected to the locking member 32. The filter cage 21 is pressed between the bottom wall of the tank 1 and the locking member 32. The threaded connection between the locking member 32 and the core rod 31 allows the degree of pressure on the filter cage 21 to be adjusted by rotating the locking member 32. When the locking member 32 is tightened, the filter cage 21 is firmly fixed between the bottom wall of the tank 1 and the locking member 32, preventing the filter assembly 2 from shaking or shifting during the filtration process.

[0035] Reference Figure 4 and Figure 5 To facilitate the replacement of filter paper 23, some embodiments of this application further include a support frame 4 and a discharge assembly 5. The discharge assembly 5 is connected to the top of the tank 1 via the support frame 4. Two discharge assemblies 5 are provided, each corresponding to lift one filter cage 21. The discharge assembly 5 includes a crossbar 51 located above the upper opening 12 and a winch 52 with a rope 521. The crossbar 51 provides mounting support for the winch 52, which is fixedly connected to the crossbar 51. In this embodiment, two winches 52 are provided on each crossbar 51, and hooks 522 are connected to the ends of the ropes 521. Two hanging rings 24 are fixedly connected to the filter cage 21 and / or the sealing plate 22, and each hook 522 is used to hang one hanging ring 24. That is, each filter cage 21 is pulled upward by two winches 52, which makes the filter cage 21 move upward more stably.

[0036] Reference Figure 4 and Figure 5The support frame 4 includes a support ring 41 coaxially located directly above the tank body 1, multiple hinge rods 42, rope loops 43 fixedly connected to the hinge rods 42, and cables 44 threaded through the multiple rope loops 43; the two ends of the crossbar 51 are fixedly connected to the support ring 41. Multiple hinge rods 42 are evenly distributed around the support ring 41. One end of each hinge rod 42 is a connecting end, and the other end is a free end. The connecting end of the hinge rod 42 is rotatably connected to the support ring 41 around a first axis, which is the tangent of the support ring 41. A rope loop 43 is fixedly connected to the free end of the hinge rod 42. A cable 44 is threaded through multiple rope loops 43 and tied to the outer peripheral wall of the tank 1 to fix the support frame 4 on the tank 1 and ensure the stability of the support frame 4. Since the hinge rod 42 is rotatably connected to the support ring 41, it can adjust its position by rotation to adapt to different installation requirements, thus adapting to tanks 1 of different diameters and having high versatility.

[0037] Reference Figure 4 and Figure 5 In some embodiments of this application, the support frame 4 further includes multiple diagonal braces 45 and a stop block 46 fixedly connected to the hinge rod 42. Each hinge rod 42 has a diagonal brace 45 fixedly connected to its free end. One end of the diagonal brace 45 is hinged to the support rod 45 around a second axis, and the other end is used to support the ground. The second axis is parallel to the first axis, providing additional support to the support frame 4 and enhancing its stability. The stop block 46 is inverted L-shaped. When the stop block 46 abuts against the diagonal brace 45, the bottom of the diagonal brace 45 abuts against the stop block 46, causing the diagonal brace 45 to tilt downwards towards the side away from the tank 1. The stop block 46 limits the rotation angle of the diagonal brace 45, ensuring that the diagonal brace 45 provides effective support. Casters 47 are provided at the bottom of the diagonal brace 45 to facilitate movement of the support frame 4 and improve the flexibility of the device.

[0038] The implementation principle of the quenching oil filtration device in this application embodiment is as follows: This quenching oil filtration device filters the quenching oil through the filter component 2, removing impurities and effectively restoring the performance of the quenching oil. The combination of the filter cage 21 and filter paper 23 reduces filtration costs compared to traditional filter plates. The connecting component 3 ensures stable installation of the filter component 2, and the unloading component 5 and support frame 4 facilitate the replacement and maintenance of the filter component 2. The overall device improves the efficiency and convenience of quenching oil filtration, effectively improving and enhancing existing technologies.

[0039] Specifically, oil is injected into the tank 1 through the oil inlet 13. The oil passes through the filter paper 23 and enters the filter cage 21, and finally exits from the oil outlet 14. Impurities are blocked outside the filter paper 23 by the filter paper 23 and the filter cage 21, thus separating the oil and impurities. When the filter paper 23 needs to be replaced, simply remove the locking piece 32 from the core rod 31, move the filter cage 21 outside the tank 1, replace the filter paper 23, and after replacement, put the filter cage 21 back on the core rod 31 and fix the filter cage 21 with the locking piece 32.

[0040] 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. A quenching oil filtration device, characterized in that, include: Tank (1), wherein the depth direction of the tank (1) is a first direction; And, a filter assembly (2) located within the tank (1), the filter assembly (2) comprising: A cylindrical sleeve-shaped filter cage (21) is detachably connected inside the tank body (1); A sealing plate (22) is fixedly connected to the top of the filter cage (21) and is used to close the top of the filter cage (21); And, filter paper (23), which covers the outer peripheral wall of the filter cage (21); The bottom wall of the tank (1) is provided with an oil outlet (14), which is located inside the filter cage (21) and communicates with the inside of the filter cage (21).

2. The quenching oil filtration device according to claim 1, characterized in that, It also includes a connecting component (3), through which the filter component (2) is connected to the tank (1), the connecting component (3) comprising: A core rod (31) parallel to the first direction, a filter cage (21) coaxially sleeved on the outer periphery of the core rod (31), a through hole (221) is provided on the sealing plate (22) along the first direction, one end of the core rod (31) is fixedly connected to the bottom of the tank body (1), and the other end extends above the filter cage (21) after passing through the filter cage (21) and the through hole (221).

3. The quenching oil filtration device according to claim 2, characterized in that, The connection component (3) further includes: The locking member (32) located above the sealing plate (22) has a threaded hole (321) through it along the first direction. The core rod (31) passes through the threaded hole (321) and is threadedly connected to the locking member (32). The filter cage (21) is pressed between the bottom wall of the tank (1) and the locking member (32).

4. The quenching oil filtration device according to claim 3, characterized in that, The tank (1) has an upper opening (12) at the top for the filter cage (21) to pass through in the first direction.

5. A quenching oil filtration device according to claim 4, characterized in that, The tank body (1) is provided with an oil inlet hole (13) at the bottom.

6. A quenching oil filtration device according to any one of claims 4-5, characterized in that, The tank (1) is provided with a plurality of filter components (2) and a plurality of connecting components (3), and each filter component (2) is connected to the tank (1) through a corresponding connecting component (3).

7. A quenching oil filtration device according to claim 6, characterized in that, It also includes a support frame (4) and a discharge assembly (5), the discharge assembly (5) being connected above the tank body (1) via the support frame (4); the discharge assembly (5) includes: A horizontal bar (51) located above the upper opening (12); In addition, a winch (52) having a rope (521) fixedly connected to the crossbar (51), the end of the rope (521) being connected to a hook (522), and a hanging ring (24) fixedly connected to the filter cage (21) and / or the sealing plate (22), the hook (522) being used to hang the hanging ring (24).

8. A quenching oil filtration device according to claim 7, characterized in that, The support frame (4) includes: A support ring (41) is located above the tank body (1), and the two ends of the crossbar (51) are fixedly connected to the support ring (41); Multiple hinge rods (42) are evenly distributed around the support ring (41); one end of each hinge rod (42) is a connecting end and the other end is a free end. The connecting end of each hinge rod (42) is rotatably connected to the support ring (41) around a first axis, which is the tangent of the support ring (41). A rope loop (43) is fixedly connected to the free end of the hinge rod (42); And cables (44) threaded through the plurality of said rope loops (43), said cables (44) being tied to the outer peripheral wall of said tank body (1).

9. A quenching oil filtration device according to claim 8, characterized in that, The support frame (4) also includes: Multiple diagonal bracing rods (45), each of the free ends of the hinged rod (42) is fixedly connected to a diagonal bracing rod (45), one end of the diagonal bracing rod (45) is hinged to the diagonal bracing rod (45) around the second axis, and the other end is used to support the ground, the second axis is parallel to the first axis; And a stop block (46) fixedly connected to the hinge rod (42), wherein when the stop block (46) abuts against the diagonal brace (45), the diagonal brace (45) is inclined downward toward the side away from the tank body (1).

10. A quenching oil filtration device according to claim 9, characterized in that, The bottom end of the diagonal brace (45) is equipped with a caster (47).