Impurity recovery quenching bath for steel processing

By designing an impurity recovery and quenching pool for steel processing including arc-shaped wall pools and filters, the problems of low impurity recovery efficiency and poor cleanliness in the prior art are solved, rapid recycling of impurities and recycling of quenching liquids are achieved, and the cleanliness in the tank body is improved.

CN222770900UActive Publication Date: 2025-04-18SHANGHAI ZHONGHAO MATERIALS CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202421470403.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-26
Publication Date
2025-04-18
Estimated Expiration
2034-06-26

AI Technical Summary

Technical Problem

The existing quenching pools are inefficient in impurity recovery, and it is difficult to completely clean up impurities, which affects the cleanliness of the pool body. Impurities may be mixed into the filtered coolant, affecting recycling.

Method used

An impurity recovery quenching pool for steel processing is designed, including a filter box, a quenching box assembly and a precipitation mechanism. Large-mass of impurities are precipitated through the arc-shaped wall pool. After the filter is filtered, the impurities accumulate in the curved bottom. When switching the filter, the impurities are cleaned to the arc-shaped wall pool. The impurities are discharged through the twisting dragon rotation to achieve rapid recovery.

Benefits of technology

The rapid recycling of impurities and the recycling of quenching liquid are achieved, the cleanliness in the pool is improved, resources are saved, and the alternating use of the filter is avoided.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222770900U_ABST
    Figure CN222770900U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of steel processing, in particular to an impurity recovery quenching pool for steel processing. Comprising a filter box, a quenching box assembly is arranged on one side of the filter box, a filter mechanism is arranged in the filter box, a precipitation mechanism is arranged at the position, between the filter mechanism and the quenching box assembly, in the filter box, and the filter mechanism comprises a rotating pipe rotationally connected to the inner wall of the filter box; one end of the rotating pipe extends out of the filter box and is provided with a rotating assembly for driving the rotating pipe to rotate. Quenching liquid in the box body is discharged into the filter box, so that large-mass impurities in the quenching liquid are firstly precipitated in the arc-shaped wall pool, and then the quenching liquid is filtered by the filter screen, so that residual impurities are accumulated at the position, located on one side of the filter screen, in the curved bottom; the filter screen sweeps impurities in the curved bottom into the arc-shaped wall pool, the auger rotates to discharge the impurities in the arc-shaped wall pool out of the filter box through the outlet, and rapid recovery of the impurities is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of steel processing, in particular to an impurity recovery quenching pool for steel processing. Background Art

[0002] Steel is a material of various shapes, sizes and properties that is formed by pressure processing of ingots, billets or steel. During the steel processing process, the steel needs to be quenched. A quenching pool is required for quenching the steel. When a quenching pool is used to quench steel, coolant is injected into the pool body to cool the steel. When the steel is immersed in the pool body, some solid impurities such as oxide scale and carbon black are generated in the pool body, and then detach from the surface of the steel and precipitate to the bottom of the quenching pool.

[0003] The utility model with authorization announcement number CN220300794U provides a quenching pool for steel processing. By setting up a circulation mechanism, when there are many impurities in the pool body, by opening the valve, the coolant in the pool body can drive the impurities to flow into the filter pool. The impurities in the coolant can be filtered through the filter residue net, so that the impurities are retained on one side of the filter residue net, and the filtered coolant enters the other side of the filter residue net. By starting the water pump, the suction pipe can extract the filtered coolant, and then transport it to the pool body again through the water pipe, so as to achieve the purpose of water circulation, and then the coolant can be reused, effectively saving water resources.

[0004] However, in the above patent, after the filtered coolant is transported into the tank body again, impurities remain at one side of the filter residue net in the filter tank. Under the premise that the filter tank is inconvenient to move, it is difficult to completely clean out the impurities from the filter tank, thereby reducing the amount of impurity recovery. At the same time, when the filter residue net is removed from the filter tank for cleaning, some impurities are easily moved to the position on the other side of the filter residue net installation in the filter box. Subsequently, these impurities will be mixed into the filtered coolant and transported into the tank body again, affecting the cleanliness of the tank body. In view of this, we propose an impurity recovery quenching tank for steel processing. Summary of the invention

[0005] The utility model aims to provide an impurity recovery quenching pool for steel processing to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, one of the purposes of the utility model is to provide an impurity recovery quenching pool for steel processing, including a filter box, a quenching box assembly is provided on one side of the filter box, and a filter mechanism is provided inside the filter box, and a sedimentation mechanism is provided in the filter box between the filter mechanism and the quenching box assembly. The filter mechanism includes a rotating tube rotatably connected to the inner wall of the filter box, one end of the rotating tube extends to the outside of the filter box and is provided with a rotating assembly for driving the rotating tube to rotate, and a plurality of filter screens are installed in a circular array on the circumferential side wall of the rotating tube. The bottom surface of the filter box is provided with a curved bottom at a position directly below the rotating tube. In the process of the rotating tube driving the plurality of filter screens to rotate, one end of one of the filter screens located below the rotating tube slides in contact with the inner arc surface of the curved bottom, and the sedimentation mechanism includes an arc-shaped wall pool opened on the inner bottom surface of the filter box, and a cleaning assembly is provided in the arc-shaped wall pool.

[0007] As a further improvement of the present technical solution, the filtering mechanism also includes a plurality of slots in an annular array opened on the circumferential side wall of the rotating tube, the inner ends of the plurality of filter screens are fixedly connected with sleeves, and the plurality of sleeves are respectively slidably connected to the inner walls of the plurality of slots, the rotating tube is provided with a pin rod in an annular array inside, and the inner walls of the plurality of sleeves are respectively slidably sleeved on the circumferential outer walls of the plurality of pin rods.

[0008] As a further improvement of the present technical solution, the filtering mechanism also includes a partition frame fixed on the inner wall of the rotating tube, the inner ends of several sleeves are against the side walls of the partition frame, the outer wall of the rotating tube is fixedly connected to several positioning frames in an annular array, several filter screens are respectively slidably connected to the inner walls of several positioning frames, and one end of the pin rod extends to the outside of the rotating tube and is fixedly connected to an end plate.

[0009] As a further improvement of the technical solution, the rotating assembly includes a worm gear fixedly connected to the circumferential outer wall of the rotating tube, a stepper motor is fixedly connected to one side of the filter box, a worm is fixedly connected to the output shaft of the stepper motor, and the worm is meshed with the worm gear.

[0010] As a further improvement of the present technical solution, the cleaning assembly includes an auger rotatably connected to the inner wall of the filter box, the outer wall of the auger abuts against the inner arc surface of the arc wall pool, a servo motor is fixedly connected to one side of the filter box, and the output shaft of the servo motor extends into the interior of the filter box and is fixedly connected to one end of the auger.

[0011] As a further improvement of the present technical solution, the cleaning assembly also includes an external tube fixedly connected to one side of the filter box, a sealing cover is threadedly connected to the circumferential outer wall of the external tube, an outlet is opened at a position inside the external tube on one side of the filter box, and the arc-shaped wall pool is connected to the outlet.

[0012] As a further improvement of the present technical solution, the quenching box assembly includes a box body, a drain pipe is fixedly connected to the bottom of the box body, one end of the drain pipe extends to a position between the arc wall pool in the filter box and the box body, and a solenoid valve is fixedly connected to the inside of the drain pipe, a reflux pump is fixedly connected to one side of the box body, the reflux pump suction pipe extends to a position of the filter mechanism in the filter box away from one side of the box body, and the reflux pump discharge pipe is connected to the inside of the box body.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The impurity recovery quenching tank for steel processing discharges the quenching liquid in the tank into the filter box, so that the large mass impurities in the quenching liquid are first precipitated inside the arc-shaped wall tank, and the filter screen then filters the quenching liquid, so that the remaining impurities are accumulated on one side of the filter screen in the curved bottom. When the filter screen is switched, the filter screen sweeps the impurities in the curved bottom into the arc-shaped wall tank, and the impurities in the arc-shaped wall tank are discharged from the filter box through the outlet through the rotation of the auger, thereby realizing the rapid recovery of impurities.

[0015] 2. The impurity recovery quenching tank used for steel processing realizes the recycling of quenching liquid and saves resources by pumping the quenching liquid after filtering out impurities back into the box. By making several filters take turns to perform filtering work, it is avoided that after one of the filters filters the impurities in the quenching liquid for a long time, the impurities will not clog the mesh of the filter, affecting the recycling of the quenching liquid in the box. Through the detachable design of several filters, the filters in an idle state can be removed and cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the filtering mechanism of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the quenching box assembly and the precipitation mechanism of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the cleaning component of the utility model.

[0020] The meaning of each number in the figure is:

[0021] 1. Filter box;

[0022] 2. Quenching box assembly; 21. Box body; 22. Drain pipe; 23. Solenoid valve; 24. Reflux pump;

[0023] 3. Filter mechanism; 31. Rotating tube; 32. Positioning frame; 33. Filter screen; 34. Casing; 35. Slot; 36. Partition frame; 37. Pin rod; 38. End plate; 39. Rotating assembly; 391. Worm gear; 392. Stepping motor; 393. Worm;

[0024] 4. Sedimentation mechanism; 41. Curved wall pool; 42. Cleaning assembly; 421. Servo motor; 422. Auger; 423. External pipe; 424. Sealing cover. DETAILED DESCRIPTION

[0025] 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. Example

[0026] See also Figure 1-Figure 4As shown, this embodiment provides an impurity recovery quenching pool for steel processing, including a filter box 1, a quenching box assembly 2 is provided on one side of the filter box 1, and the quenching box assembly 2 includes a box body 21, a drain pipe 22 is fixedly connected to the bottom of the box body 21, one end of the drain pipe 22 extends to the position between the arc wall pool 41 in the filter box 1 and the box body 21, and a solenoid valve 23 is fixedly connected inside the drain pipe 22. When the quenching liquid in the box body 21 needs to be replaced, the solenoid valve 23 is opened, and the quenching liquid in the box 21 flows into the filter box through the drain pipe 22. 1, a filtering mechanism 3 is provided inside the filter box 1, a sedimentation mechanism 4 is provided at a position between the filtering mechanism 3 and the quenching box assembly 2 in the filter box 1, the sedimentation mechanism 4 includes an arc-shaped wall pool 41 opened on the bottom surface of the filter box 1, the quenching liquid first flows through the inside of the arc-shaped wall pool 41, and the large mass impurities carried in the quenching liquid are precipitated inside the arc-shaped wall pool 41, the filtering mechanism 3 includes a rotating tube 31 rotatably connected to the inner wall of the filter box 1, and a plurality of filter screens 33 are installed in an annular array on the circumferential side wall of the rotating tube 31. The bottom surface of the filter box 1 is located at the rotating tube 31. A curved bottom is provided directly below the tube 31. When the rotating tube 31 drives a plurality of filter screens 33 to rotate, one end of the filter screen 33 located below the rotating tube 31 slides in contact with the inner arc surface of the curved bottom. That is, during this process, one end of the filter screen 33 must slide in contact with the inner arc surface of the curved bottom, so that the filter screen 33 separates the liquid in the filter box 1 into two areas. The area between the filter screen 33 and the box body 21 in the filter box 1 is the dirty liquid area, and the other area is the clean liquid area, so that the filter screen 33 can filter the liquid in the filter box 1. The liquid is filtered. When the filter screen 33 filters the quenching liquid, the quenching liquid after the large-mass impurities are precipitated in the arc-shaped wall pool 41 passes through the mesh of one of the filters 33 and flows into the clean liquid area. The impurities intercepted by the filter screen 33 are accumulated in the dirty liquid area. A reflux pump 24 is fixedly connected to one side of the box body 21. The suction pipe of the reflux pump 24 extends into the clean liquid area. The discharge pipe of the reflux pump 24 is connected to the inside of the box body 21. After the reflux pump 24 is started, the quenching liquid purified in the clean liquid area is pumped into the inside of the box body 21 again, so as to realize the recycling of the quenching liquid and save resources.

[0027] In order to switch the filter screen 33 that performs the filtering work, so that several filter screens 33 perform the filtering work alternately, and avoid that after one of the filter screens 33 filters the impurities of the quenching liquid for a long time, the impurities clog the mesh of the filter screen 33, causing the speed of the quenching liquid passing through the filter screen 33 to decrease, affecting the recycling of the quenching liquid in the box body 21, one end of the rotating tube 31 extends to the outside of the filter box 1 and is provided with a rotating component 39, the rotating component 39 is used to drive the rotating tube 31 to rotate, so that the rotating tube 31 can drive several filter screens 33 to rotate synchronously, switch the filter screen 33 located inside the curved bottom, refine the structure of the rotating component 39, and rotate the component 3 9 includes a worm gear 391 fixedly connected to the outer circumferential wall of the rotating tube 31, a stepper motor 392 is fixedly connected to one side of the filter box 1, a worm 393 is fixedly connected to the output shaft of the stepper motor 392, and the worm 393 is meshed with the worm gear 391. After the stepper motor 392 is started, its output shaft drives the worm 393 to rotate, so that the worm gear 391 drives the rotating tube 31 to rotate, and the rotating tube 31 rotates the filter screen 33 that undertakes the filtering work into the interior of the curved bottom. In this process, the impurities accumulated on one side of the filter screen 33 in the curved bottom are swept by the filter screen 33 to the interior of the arc-shaped wall pool 41, so as to facilitate the centralized treatment of the impurities in the filter box 1.

[0028] In order to facilitate the disassembly and assembly of the filter screen 33 on the circumferential side wall of the rotating tube 31, when the filter screen 33 needs to be cleaned, the filter screen 33 is separated from the rotating tube 31 to facilitate the cleaning of the filter screen 33. The filtering mechanism 3 also includes a plurality of slots 35 arranged in an annular array on the circumferential side wall of the rotating tube 31, the inner ends of the plurality of filter screens 33 are fixedly connected with sleeves 34, and the plurality of sleeves 34 are respectively slidably connected with the inner walls of the plurality of slots 35, and the inner annular array of the rotating tube 31 is provided with pins 37, and the inner walls of the plurality of sleeves 34 are respectively slidably sleeved on the circumferential outer walls of the plurality of pins 37, and the sleeves 34 and the slots 35 cooperate to limit The filter screen 33 is made to slide along the circumferential side wall of the rotating tube 31, and the pin rod 37 prevents the sleeve 34 from moving out of the slot 35, thereby firmly installing the filter screen 33 on the circumferential side wall of the rotating tube 31. The sleeve 34 can be pulled out of the slot 35 by pulling the pin rod 37 out from the inner wall of the sleeve 34, and then the filter screen 33 fixedly connected to the sleeve 34 can be separated from the rotating tube 31, so that the filter screen 33 can be easily cleaned. When removing one or more of the filter screens 33, it is only necessary to ensure that there is a filter screen 33 in the curved bottom, so that the filter mechanism 3 can still filter the quenching liquid while cleaning the filter screen 33.

[0029] In order to limit the free movement of the sleeve 34 in the rotating tube 31, so as to facilitate the insertion of the pin 37 into the sleeve 34 when installing the filter screen 33, the filter mechanism 3 also includes a partition frame 36 fixed to the inner wall of the circumference of the rotating tube 31, and the inner ends of several sleeves 34 are against the side walls of the partition frame 36. When installing the filter screen 33, the sleeve 34 on the filter screen 33 is inserted into the interior of the slot 35 so that the sleeve 34 is against the two side walls of the partition frame 36. The partition frame 36 plays a positioning role for the sleeve 34, thereby preventing the sleeve 34 from being inserted too deeply into the rotating tube 31, and facilitating the insertion of the pin 37 into the sleeve 34. In order to facilitate the pulling out of the pin 37, one end of the pin 37 extends to the outside of the rotating tube 31 and is fixedly connected to the end plate 38. The side wall of the end plate 38 is provided with an embedded groove, and the worker can easily pull out the pin 37 horizontally by inserting his fingers into the embedded groove.

[0030] In order to enhance the connection strength between the filter screen 33 and the rotating tube 31 and prevent the connection between the sleeve 34 and the filter screen 33 from breaking due to a large shear force, a plurality of positioning frames 32 are fixedly connected to the circular outer wall of the rotating tube 31 in an annular array, and a plurality of filter screens 33 are slidingly connected to the inner walls of a plurality of positioning frames 32 respectively. The positioning frames 32 reinforce and support the filter screen 33. When the filter screen 33 filters the quenching liquid and rotates, the positioning frames 32 share the shear force on the connection between the sleeve 34 and the filter screen 33.

[0031] In order to facilitate cleaning of impurities in the arc-shaped wall pool 41, a cleaning component 42 is arranged inside the arc-shaped wall pool 41. The cleaning component 42 can transport the impurities in the arc-shaped wall pool 41 to the outside of the filter box 1. The structure of the cleaning component 42 is refined. The cleaning component 42 includes an auger 422 rotatably connected to the inner wall of the filter box 1. The outer wall of the auger 422 abuts against the inner arc surface of the arc-shaped wall pool 41. A servo motor 421 is fixedly connected to one side of the filter box 1. The output shaft of the servo motor 421 extends into the interior of the filter box 1 and is fixedly connected to one end of the auger 422. The cleaning component 42 also includes an external pipe 423 fixedly connected to one side of the filter box 1. The outer wall of the external tube 423 is threadedly connected with a sealing cover 424, and an outlet is opened on one side of the filter box 1 at a position inside the external tube 423, and the arc-shaped wall pool 41 is connected to the outlet. When it is necessary to clean the impurities in the arc-shaped wall pool 41, the sealing cover 424 is unscrewed from the outside of the external tube 423, and the servo motor 421 is started. The output shaft of the servo motor 421 drives the auger 422 to rotate, and the blades of the auger 422 transport the impurities accumulated on the inner arc surface of the arc-shaped wall pool 41 in a direction away from the servo motor 421 until the impurities move to the outside of the filter box 1 through the outlet, thereby realizing the rapid cleaning of the precipitated impurities in the arc-shaped wall pool 41.

[0032] In summary, the working principle of this scheme is as follows: quenching liquid is added to the box 21, and the steel is placed in the box 21 for quenching. When the quenching work is completed and a large amount of impurities separated from the steel quenching are precipitated in the quenching liquid in the box 21, the solenoid valve 23 is opened to allow the quenching liquid in the box 21 to flow into the interior of the filter box 1 through the drain pipe 22. The quenching liquid in the filter box 1 first flows through the interior of the arc wall pool 41, and the large mass impurities carried in the quenching liquid are precipitated in the interior of the arc wall pool 41. Then the quenching liquid passes through the mesh of one of the filter screens 33, and the filter screen 33 will Impurities in the quenching liquid are filtered out, and the reflux pump 24 pumps the quenching liquid after impurities are removed into the box body 21 again to realize the recycling of the quenching liquid. After the filter box 1 completes the filtering work of the quenching liquid once, the rotating tube 31 drives several filter screens 33 to rotate a certain angle, and the filter screens 33 placed in the curved bottom are switched. During the rotation of the filter screen 33, the impurities accumulated on one side of the filter screen 33 in the curved bottom are cleaned into the arc-shaped wall pool 41, and then the impurities in the arc-shaped wall pool 41 are discharged from the filter box 1 through the cleaning component 42 to realize the recycling of impurities.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An impurity recovery quenching tank for steel processing, comprising a filter box (1), a quenching box assembly (2) being provided on one side of the filter box (1), a filter mechanism (3) being provided inside the filter box (1), and a sedimentation mechanism (4) being provided at a position between the filter mechanism (3) and the quenching box assembly (2) in the filter box (1), characterized in that: The filtering mechanism (3) comprises a rotating tube (31) rotatably connected to the inner wall of the filter box (1); one end of the rotating tube (31) extends to the outside of the filter box (1) and is provided with a rotating assembly (39) for driving the rotating tube (31) to rotate; a plurality of filter screens (33) are installed in an annular array on the circumferential side wall of the rotating tube (31); a curved bottom is provided on the inner bottom surface of the filter box (1) at a position directly below the rotating tube (31); during the process of the rotating tube (31) driving the plurality of filter screens (33) to rotate, one end of one of the filter screens (33) located below the rotating tube (31) is in sliding contact with the inner arc surface of the curved bottom; and the sedimentation mechanism (4) comprises an arc-shaped wall pool (41) provided on the inner bottom surface of the filter box (1); a cleaning assembly (42) is provided in the arc-shaped wall pool (41).

2. The impurity recovery quenching tank for steel processing according to claim 1, characterized in that: The filtering mechanism (3) further comprises a plurality of slots (35) arranged in an annular array on the circumferential side wall of the rotating tube (31); the inner ends of the plurality of filter screens (33) are fixedly connected with sleeves (34), and the plurality of sleeves (34) are respectively slidably connected to the inner walls of the plurality of slots (35); the rotating tube (31) is provided with a pin rod (37) in an annular array, and the inner walls of the plurality of sleeves (34) are respectively slidably sleeved on the circumferential outer walls of the plurality of pin rods (37).

3. The impurity recovery quenching tank for steel processing according to claim 2, characterized in that: The filtering mechanism (3) further comprises a partition frame (36) fixed to the inner wall of the rotating tube (31); the inner ends of the plurality of sleeves (34) are in contact with the side wall of the partition frame (36); the outer wall of the rotating tube (31) is fixedly connected to a plurality of positioning frames (32) in an annular array; the plurality of filter screens (33) are respectively slidably connected to the inner walls of the plurality of positioning frames (32); one end of the pin rod (37) extends to the outside of the rotating tube (31) and is fixedly connected to an end plate (38).

4. The impurity recovery quenching tank for steel processing according to claim 1, characterized in that: The rotating assembly (39) comprises a worm wheel (391) fixedly connected to the circumferential outer wall of the rotating tube (31); a stepping motor (392) is fixedly connected to one side of the filter box (1); a worm (393) is fixedly connected to the output shaft of the stepping motor (392); and the worm (393) is meshed with the worm wheel (391).

5. The impurity recovery quenching tank for steel processing according to claim 1, characterized in that: The cleaning assembly (42) comprises an auger (422) rotatably connected to the inner wall of the filter box (1), the outer wall of the auger (422) abutting against the inner arc surface of the arc-shaped wall pool (41), a servo motor (421) being fixedly connected to one side of the filter box (1), and an output shaft of the servo motor (421) extending into the interior of the filter box (1) and fixedly connected to one end of the auger (422).

6. The impurity recovery quenching tank for steel processing according to claim 5, characterized in that: The cleaning assembly (42) further comprises an external tube (423) fixedly connected to one side of the filter box (1); a sealing cover (424) is threadedly connected to the circumferential outer wall of the external tube (423); an outlet is provided at a position inside the external tube (423) on one side of the filter box (1), and the arc-shaped wall pool (41) is connected to the outlet.

7. The impurity recovery quenching tank for steel processing according to claim 1, characterized in that: The quenching box assembly (2) comprises a box body (21), a drain pipe (22) is fixedly connected to the bottom of the box body (21), one end of the drain pipe (22) extends to a position between the arc-shaped wall pool (41) in the filter box (1) and the box body (21), and a solenoid valve (23) is fixedly connected inside the drain pipe (22), a reflux pump (24) is fixedly connected to one side of the box body (21), a water suction pipe of the reflux pump (24) extends to a position on a side of the filter mechanism (3) in the filter box (1) away from the box body (21), and a water discharge pipe of the reflux pump (24) is connected to the inside of the box body (21).

Citation Information

Patent Citations

  • Quenching bath for steel processing

    CN220300794U