A grading impurity removal device for lubricating oil processing

Abstract

The present application provides a graded impurity removal device for lubricating oil processing, including a feed and discharge mechanism and multiple impurity removal mechanisms. The feed and discharge mechanism includes a feed end cover and a discharge end cover. Multiple impurity removal mechanisms are installed between the feed end cover and the discharge end cover, and are configured to transport materials from the feed end cover to the discharge end cover; the impurity removal mechanism includes an impurity removal barrel, a Jiaolong filter and a spiral channel, the Jiaolong filter is installed in the impurity removal barrel, and is enclosed with the impurity removal barrel to form a relatively independent spiral channel. The apertures of multiple Jiaolong filters decrease in sequence along the material conveying direction. The graded impurity removal device for lubricating oil processing provided by the present application adopts a Jiaolong filter. Compared with the flat filter in the related art, it effectively increases the contact area between the filter and the lubricating oil in a limited space, greatly increases the filterable area of ​​the filter, and thus helps to improve the impurity removal efficiency.

Description

Technical Field

[0001] The present application relates to the field of lubricating oil impurity removal equipment, and in particular to a graded impurity removal device for lubricating oil processing. Background Art

[0002] In daily life and production processes, lubricating oil is usually needed to lubricate, cool, rust-proof, clean, seal and buffer parts. In the lubricating oil processing process, it is usually necessary to use an impurity removal device to remove impurities such as moisture, mud, sand, dust, iron filings, fibers and certain insoluble salts in the lubricating oil to improve the purity of the lubricating oil, thereby preventing impurities from affecting the use effect of the lubricating oil. In the related art, in order to improve the impurity removal effect of the lubricating oil, a graded impurity removal device is usually used to remove different types of impurities, that is, a filter with different mesh sizes is used to remove impurities of different particle sizes. However, in actual application, as the filter increases the number of impurities filtered by the filter, the filter mesh is gradually blocked, resulting in a gradual decrease in the filterable area of ​​the filter, which easily leads to a decrease in the impurity removal efficiency of the impurity removal device. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a graded impurity removal device for lubricating oil processing to solve the technical problem of low impurity removal efficiency of impurity removal devices existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a graded impurity removal device for lubricating oil processing, comprising:

[0005] A feeding and discharging mechanism, wherein the feeding and discharging mechanism comprises a feeding end cover and a discharging end cover;

[0006] A plurality of impurity removal mechanisms, each of which is installed between the feed end cover and the discharge end cover and is configured to transport the material from the feed end cover to the discharge end cover; the impurity removal mechanism comprises an impurity removal barrel, a Jiaolong filter and a spiral channel, the Jiaolong filter is installed in the impurity removal barrel and encloses the impurity removal barrel to form a relatively independent spiral channel;

[0007] Among them, the apertures of the multiple Jiaolong filters decrease successively along the material conveying direction.

[0008] Optionally, the impurity removal cylinder includes an inner cylinder, an outer cylinder and a plurality of first connecting rods, the outer cylinder is sleeved in the inner cylinder, and the plurality of first connecting rods are connected between the inner cylinder and the outer cylinder; the Jiaolong filter screen includes a Jiaolong filter leaf and a first baffle, the Jiaolong filter leaf is connected between the inner cylinder and the outer cylinder, the first baffle is connected to one end of the Jiaolong filter leaf close to the discharge end cover, and is enclosed with the inner cylinder, the outer cylinder and the Jiaolong filter leaf to form the spiral channel.

[0009] Optionally, the Jiaolong filter screen further includes a plurality of second baffles, which are all connected between the inner tube and the outer tube and connected to the side of the Jiaolong filter leaf facing away from the first connecting rod, and are arranged at intervals.

[0010] Optionally, the discharge end cover includes a discharge cover, a discharge pipe, a positioning rod and a plurality of support rods, the discharge pipe is connected to the discharge cover, the positioning rod is passed through a plurality of the inner tubes, and the plurality of support rods are connected between the positioning rod and the inner circumference of the discharge cover.

[0011] Optionally, the impurity removal device further comprises a plurality of vibrators, and the plurality of vibrators are respectively mounted on the outer circumference sides of the plurality of outer cylinders.

[0012] Optionally, the impurity removal device further comprises a plurality of outer corrugated tubes, and the plurality of outer corrugated tubes are respectively installed at one end of the plurality of outer cylinders close to the discharge cover.

[0013] Optionally, the impurity removal device further comprises at least one inner corrugated tube, and the inner corrugated tube is installed between any two adjacent inner cylinders.

[0014] Optionally, the feed end cover includes a feed cover, a feed pipe, a cover plate and a plurality of second connecting rods, the feed pipe is connected to the feed cover, the cover plate is arranged at one end of the inner cylinder close to the feed cover, and the plurality of second connecting rods are connected between the inner circumference of the feed cover and the cover plate.

[0015] Optionally, the positioning rod is provided with a plurality of snap-in grooves, and the plurality of snap-in grooves are respectively arranged in one-to-one correspondence with the plurality of inner cylinders; the impurity removal device also includes a plurality of bearing structures, and the plurality of bearing structures are respectively detachably snap-into the plurality of snap-in grooves, and are configured to be arranged in one-to-one correspondence with the plurality of inner cylinders to carry the plurality of inner cylinders.

[0016] Optionally, the impurity removal device further comprises a sedimentation centrifuge, and the sedimentation centrifuge is installed on the discharge end cover and communicated with the discharge end cover.

[0017] The beneficial effects of a graded impurity removal device for lubricating oil processing provided by the present application are:

[0018] The embodiment of the present application provides a graded impurity removal device for lubricating oil processing, which uses a Jiaolong filter. Compared with the flat filter in the related art, it effectively increases the contact area between the filter and the lubricating oil in a limited space, greatly increases the filterable area of ​​the filter, and thus helps to improve the impurity removal efficiency. In addition, when the lubricating oil flows in the spiral channel, it can pass through the Jiaolong filter multiple times. The Jiaolong filter can filter the lubricating oil multiple times. Compared with the flat filter, the impurity removal effect is better, which helps to improve the purity of the lubricating oil, thereby helping to improve the use effect of the lubricating oil. In addition, the use of multiple Jiaolong filters with different apertures can be used to separate impurities of different particle sizes in the lubricating oil, which helps to further improve the impurity removal effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A three-dimensional diagram of a graded impurity removal device for lubricating oil processing provided in an embodiment of the present application;

[0021] Figure 2 A three-dimensional diagram of the internal structure of a graded impurity removal device for lubricating oil processing provided in an embodiment of the present application;

[0022] Figure 3 A cross-sectional view of a graded impurity removal device for lubricating oil processing provided in an embodiment of the present application.

[0023] Among them, the reference numerals in the figure are:

[0024] 1. Feeding and discharging mechanism; 11. Feeding end cover; 111. Feeding cover; 112. Feeding pipe; 113. Cover plate; 114. Second connecting rod; 12. Discharging end cover; 121. Discharging cover; 122. Discharging pipe; 123. Positioning rod; 124. Support rod; 125. Clamping groove;

[0025] 2. impurity removal mechanism; 21. impurity removal cylinder; 211. inner cylinder; 212. outer cylinder; 213. first connecting rod; 22. Jiaolong filter screen; 221. Jiaolong filter leaf; 222. first baffle; 223. second baffle; 23. spiral channel;

[0026] 3. Vibrator;

[0027] 4. External corrugated tube;

[0028] 5. Inner corrugated tube;

[0029] 6. Bearing structure;

[0030] 7. Sedimentation centrifuge. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] like Figures 1 to 3 As shown, an embodiment of the present application provides a graded impurity removal device for lubricating oil processing, including a feed and discharge mechanism 1 and a plurality of impurity removal mechanisms 2. The feed and discharge mechanism 1 includes a feed end cover 11 and a discharge end cover 12. The plurality of impurity removal mechanisms 2 are installed between the feed end cover 11 and the discharge end cover 12, and are configured to transport materials from the feed end cover 11 to the discharge end cover 12. The impurity removal mechanism 2 includes an impurity removal barrel 21, a Jiaolong filter 22 and a spiral channel 23. The Jiaolong filter 22 is installed in the impurity removal barrel 21, and is enclosed with the impurity removal barrel 21 to form a relatively independent spiral channel 23. The apertures of the plurality of Jiaolong filters 22 decrease successively along the material conveying direction.

[0036] It should be noted that in this embodiment, the material is set as lubricating oil as an example for illustration. Of course, in other embodiments, according to actual application requirements, the material can also be set as other types of impurities to be removed, which is not limited here.

[0037] In the related art, the filter is usually set as a flat filter. When the flat filter is used to filter impurities in the lubricating oil, as the impurities filtered by the flat filter increase, the meshes on the flat filter are gradually blocked, resulting in a gradual decrease in the number of meshes on the flat filter that the lubricating oil can pass through, that is, the filter area gradually decreases, thereby reducing the impurity removal efficiency of the flat filter.

[0038] It should also be noted that, in this embodiment, the number of the impurity removal mechanisms 2 is set to two as an example for illustration. Of course, in other embodiments, according to actual application requirements, the number of the impurity removal mechanisms 2 can also be set to three, four, five... other numbers, which are not limited here.

[0039] The working principle of this embodiment is as follows: the lubricating oil is injected into the feed end cover 11, and the lubricating oil first enters the impurity removal mechanism 2 near the feed end cover 11. The lubricating oil enters the spiral channel 23 after entering the impurity removal mechanism 2 near the feed end cover 11. When the lubricating oil flows in the spiral channel 23, the lubricating oil can pass through the Jiaolong filter 22 multiple times along the through direction of the impurity removal barrel 21, and the Jiaolong filter 22 can filter the lubricating oil multiple times; or, the lubricating oil flows along the spiral channel 23 from the surface of the Jiaolong filter 22 until the lubricating oil flows to the end of the spiral channel 23 away from the feed end cover 11, and the lubricating oil passes through the Jiaolong filter 22. Since the aperture of the Jiaolong filter 22 near the feed end cover 11 is larger than the aperture of the Jiaolong filter 22 near the discharge end cover 12, the impurity removal mechanism 2 near the feed end cover 11 can remove large particles of impurities in the lubricating oil. After the lubricating oil passes through the Jiaolong filter 22 near the feed end cover 11, the lubricating oil enters the impurity removal mechanism 2 near the discharge end cover 12. The flow state of the lubricating oil in the impurity removal mechanism 2 near the discharge end cover 12 is basically the same as the flow state of the lubricating oil in the impurity removal mechanism 2 near the feed end cover 11. The impurity removal mechanism 2 near the discharge end cover 12 can remove small particles of impurities in the lubricating oil.

[0040] The present application provides a graded impurity removal device for lubricating oil processing, which uses a Jiaolong filter 22. Compared with the flat filter in the related art, it effectively increases the contact area between the filter and the lubricating oil in a limited space, greatly increases the filterable area of ​​the filter, and thus helps to improve the impurity removal efficiency. In addition, when the lubricating oil flows in the spiral channel 23, it can pass through the Jiaolong filter 22 multiple times. The Jiaolong filter 22 can filter the lubricating oil multiple times. Compared with the flat filter, the impurity removal effect is better, which helps to improve the purity of the lubricating oil, thereby helping to improve the use effect of the lubricating oil. In addition, the use of multiple Jiaolong filters 22 with different apertures can be used to separate impurities of different particle sizes in the lubricating oil, which helps to further improve the impurity removal effect of the device.

[0041] In one embodiment of the present application, see Figures 1 to 3 The impurity removal cylinder 21 includes an inner cylinder 211, an outer cylinder 212 and a plurality of first connecting rods 213. The outer cylinder 212 is sleeved in the inner cylinder 211. The plurality of first connecting rods 213 are connected between the inner cylinder 211 and the outer cylinder 212. The Jiaolong filter screen 22 includes a Jiaolong filter leaf 221 and a first baffle 222. The Jiaolong filter leaf 221 is connected between the inner cylinder 211 and the outer cylinder 212. The first baffle 222 is connected to one end of the Jiaolong filter leaf 221 close to the discharge end cover 12, and is enclosed with the inner cylinder 211, the outer cylinder 212 and the Jiaolong filter leaf 221 to form a spiral channel 23.

[0042] With such arrangement, a relatively sealed spiral channel 23 can be formed through the inner cylinder 211, the outer cylinder 212, the Jiaolong filter leaf 221 and the first baffle 222. When removing impurities from the lubricating oil, it is possible to prevent impurities from the external environment from entering the spiral channel 23 to affect the impurity removal effect of the lubricating oil, which helps to improve the impurity removal effect of the device. The first baffle 222 is used to prevent the lubricating oil from directly flowing out from the end of the spiral channel 23 away from the feed end cover 11 after the lubricating oil enters the spiral channel 23, resulting in part of the lubricating oil not being filtered by the Jiaolong filter leaf 221. The lubricating oil can pass through the Jiaolong filter leaf 221 at least once, ensuring the impurity removal effect of the device. The use of multiple first connecting rods 213 helps to improve the structural stability between the inner cylinder 211 and the outer cylinder 212, so that the Jiaolong filter leaf 221 and the first baffle 222 can be stably installed between the inner cylinder 211 and the outer cylinder 212, so that the Jiaolong filter leaf 221 can stably filter the lubricating oil.

[0043] Optionally, the outer cylinder 212 and the inner cylinder 211 are both axially through-arranged.

[0044] In one embodiment of the present application, please refer to Figures 1 to 3The Jiaolong filter screen 22 also includes a plurality of second baffles 223, which are all connected between the inner cylinder 211 and the outer cylinder 212, and are connected to the side of the Jiaolong filter leaf 221 facing away from the first connecting rod 213, and are arranged at intervals.

[0045] In this way, the plurality of second baffles 223 can slow down the flow rate of the lubricating oil in the spiral channel 23, so that the Jiaolong blades can fully filter the lubricating oil and achieve a good impurity removal effect. Moreover, after slowing down the flow rate of the lubricating oil, it is convenient for the lubricating oil to pass through the Jiaolong blades multiple times, which helps to further improve the impurity removal effect of the device.

[0046] In one embodiment of the present application, see Figures 1 to 3 The discharge end cover 12 includes a discharge cover 121, a discharge pipe 122, a positioning rod 123 and a plurality of support rods 124. The discharge pipe 122 is connected to the discharge cover 121. The positioning rod 123 is passed through a plurality of inner cylinders 211. The plurality of support rods 124 are all connected between the positioning rod 123 and the inner circumference of the discharge cover 121.

[0047] With such arrangement, the discharge cover 121 and the discharge pipe 122 can enclose and form a relatively sealed impurity removal environment under the cooperation of the feed end cover 11 and the plurality of impurity removal mechanisms 2, so as to facilitate the device to remove impurities from the lubricating oil. The plurality of support rods 124 can be used to support the positioning rod 123. The positioning rod 123 is used to facilitate the installation of the plurality of inner cylinders 211. The discharge cover 121 is used to facilitate the collection of the filtered lubricating oil, so as to facilitate the lubricating oil to enter the discharge pipe 122.

[0048] In one embodiment of the present application, see Figures 1 to 3 The impurity removal device also includes a plurality of vibrators 3, and the plurality of vibrators 3 are respectively installed on the outer peripheral sides of the plurality of outer cylinders 212.

[0049] In this way, multiple vibrators 3 are used to vibrate multiple outer cylinders 212. The outer cylinder 212 transmits the vibration to the Jiaolong filter leaf 221, so that the impurities oscillate on the surface of the Jiaolong filter leaf 221, thereby facilitating the lubricating oil to pass through the Jiaolong filter leaf 221, which helps to further improve the impurity removal efficiency of the device. When the outer cylinder 212 is vibrated, the impurity removal cylinder 21 can be positioned by the positioning rod 123 to prevent any two adjacent impurity removal cylinders 21 from being misaligned due to vibration, resulting in the collapse of the impurity removal cylinder 21, which helps to improve the safety performance of the device.

[0050] In one embodiment of the present application, please refer to Figures 1 to 3 The impurity removal device also includes a plurality of outer corrugated tubes 4, and the plurality of outer corrugated tubes 4 are respectively installed at one end of the plurality of outer cylinders 212 close to the discharge cover 121.

[0051] Such an arrangement uses a plurality of outer corrugated tubes 4, compared with directly connecting two impurity removal cylinders 21, and utilizes the shrinkage property of the outer corrugated tubes 4 to buffer the vibration of two adjacent impurity removal cylinders 21, thereby preventing the two impurity removal cylinders 21 from vibrating against each other and causing the sealing performance to deteriorate, thereby preventing impurities in the external environment from entering the impurity removal cylinder 21 and causing the impurity removal effect to deteriorate.

[0052] Optionally, a sealing ring (not shown in the figure) is installed between the outer corrugated tube 4 and the outer cylinder 212 .

[0053] Such arrangement can prevent lubricating oil from overflowing from between the outer corrugated tube 4 and the outer cylinder 212. It can also prevent impurities in the external environment from entering the impurity removal cylinder 21 from between the outer corrugated tube 4 and the outer cylinder 212, thereby preventing impurities in the external environment from affecting the impurity removal effect of the device.

[0054] Optionally, a sealing ring (not shown in the figure) is installed between the outer corrugated tube 4 and the discharge cover 121 .

[0055] Such arrangement can prevent lubricating oil from overflowing from between the outer corrugated tube 4 and the discharge cover 121. It can also prevent impurities in the external environment from entering the impurity removal barrel 21 from between the outer corrugated tube 4 and the discharge cover 121, thereby preventing impurities in the external environment from affecting the impurity removal effect of the device.

[0056] In one embodiment of the present application, see Figures 1 to 3 The impurity removal device also includes at least one inner corrugated tube 5 , which is installed between any two adjacent inner tubes 211 .

[0057] In this configuration, at least one inner corrugated tube 5 is used. Compared with the direct connection of two inner cylinders 211, the shrinkage performance of the inner corrugated tube 5 is utilized to buffer the vibration of two adjacent inner cylinders 211, thereby preventing the two inner cylinders 211 from vibrating against each other and causing the sealing performance to deteriorate. In addition, the inner corrugated tube 5 can also prevent the lubricating oil from directly entering the discharge pipe 122 through the gap between the inner cylinder 211 and the positioning rod 123 without being filtered, thereby helping to improve the impurity removal effect of the device.

[0058] Optionally, a sealing ring (not shown in the figure) is installed between the inner corrugated tube 5 and the outer cylinder 212 .

[0059] Such an arrangement can prevent the lubricating oil from entering the inner cylinder 211 from between the inner corrugated tube 5 and the inner cylinder 211, thereby avoiding the situation where part of the lubricating oil is not filtered, which helps to improve the impurity removal effect of the device.

[0060] In one embodiment of the present application, see Figures 1 to 3The feed end cover 11 includes a feed cover 111, a feed pipe 112, a cover plate 113 and a plurality of second connecting rods 114. The feed pipe 112 is connected to the feed cover 111. The cover plate 113 is covered on one end of the inner cylinder 211 close to the feed cover 111. The plurality of second connecting rods 114 are all connected between the inner circumference of the feed cover 111 and the cover plate 113.

[0061] With such arrangement, the feed cover 111 and the feed pipe 112 can form a relatively sealed impurity removal environment under the cooperation of multiple impurity removal mechanisms 2, the discharge cover 121, and the discharge pipe 122, so as to facilitate the device to remove impurities from the lubricating oil. When the lubricating oil enters the feed cover 111 from the feed pipe 112, the cover plate 113 prevents the lubricating oil from being injected into the gap between the inner cylinder 211 and the positioning rod 123, and prevents the lubricating oil from being unfiltered, which helps to improve the impurity removal effect of the device. The use of multiple second connecting rods 114 helps to improve the structural stability between the cover plate 113 and the feed cover 111, so that the cover plate 113 can stably shield the inner cylinder 211 and the positioning rod 123.

[0062] Optionally, a sealing ring (not shown in the figure) is installed between the feed cover 111 and the outer cylinder 212.

[0063] Such arrangement can prevent lubricating oil from overflowing from between the feed cover 111 and the outer cylinder 212. It can also prevent impurities in the external environment from entering the impurity removal cylinder 21 from between the feed cover 111 and the outer cylinder 212, thereby preventing impurities in the external environment from affecting the impurity removal effect of the device.

[0064] In one embodiment of the present application, please refer to Figures 1 to 3 The positioning rod 123 is provided with a plurality of snap-in grooves 125, and the plurality of snap-in grooves 125 are respectively arranged in one-to-one correspondence with the plurality of inner cylinders 211. The impurity removal device further comprises a plurality of bearing structures 6, which are respectively detachably snap-into the plurality of snap-in grooves 125 and are configured to be arranged in one-to-one correspondence with the plurality of inner cylinders 211 to carry the plurality of inner cylinders 211.

[0065] Such a configuration, using a plurality of snap-in grooves 125 , enables a plurality of bearing structures 6 to be stably snap-into the positioning rods 123 , so that the bearing structures 6 can bear the inner cylinder 211 via a plurality of first connecting rods 213 .

[0066] Optionally, the bearing structure 6 includes two clamping blocks (not shown in the figure), and the two clamping blocks are detachably clamped in the clamping slots 125 .

[0067] With such arrangement, two clamping blocks are used, so that the bearing structure 6 can be detachably clamped in the clamping groove 125 , which is convenient for disassembly and installation, and helps to improve the convenience of use of the device.

[0068] Optionally, the two clamping blocks are connected by bolts.

[0069] In one embodiment of the present application, see Figures 1 to 3 The impurity removal device also includes a sedimentation centrifuge 7, which is installed on the discharge end cover 12 and is connected to the discharge end cover 12.

[0070] With such arrangement, the decanter centrifuge 7 is used to centrifuge the impurity-removed lubricating oil, so that the water in the lubricating oil and the lubricating oil are fully separated, which helps to further improve the purity of the lubricating oil and helps to improve the use effect of the lubricating oil.

[0071] One or more embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present application should be included in the protection scope of the present application.

Claims

1. A classification type impurity removal device for lubricating oil processing, characterized in that: include: A material inlet and outlet mechanism (1), the material inlet and outlet mechanism (1) comprising a material inlet end cover (11) and a material outlet end cover (12); A plurality of impurity removal mechanisms (2), each of the plurality of impurity removal mechanisms (2) being installed between the feed end cover (11) and the discharge end cover (12), and being configured to transport materials from the feed end cover (11) to the discharge end cover (12); the impurity removal mechanism (2) comprising an impurity removal barrel (21), a Jiaolong filter (22) and a spiral channel (23); the Jiaolong filter (22) being installed in the impurity removal barrel (21), and enclosing the impurity removal barrel (21) to form a relatively independent spiral channel (23); The apertures of the plurality of Jiaolong filters (22) decrease in sequence along the material conveying direction; The impurity removal cylinder (21) comprises an inner cylinder (211), an outer cylinder (212) and a plurality of first connecting rods (213); the outer cylinder (212) is sleeved on the inner cylinder (211); and the plurality of first connecting rods (213) are connected between the inner cylinder (211) and the outer cylinder (212); the Jiaolong filter screen (22) comprises a Jiaolong filter leaf (221) and a first baffle (222); the Jiaolong filter leaf (221) is connected between the inner cylinder (211) and the outer cylinder (212); the first baffle (222) is connected to one end of the Jiaolong filter leaf (221) close to the discharge end cover (12), and is enclosed with the inner cylinder (211), the outer cylinder (212) and the Jiaolong filter leaf (221) to form the spiral channel (23); The discharge end cover (12) comprises a discharge cover (121), a discharge pipe (122), a positioning rod (123) and a plurality of support rods (124); the discharge pipe (122) is connected to the discharge cover (121); the positioning rod (123) is passed through a plurality of the inner cylinders (211); and the plurality of support rods (124) are connected between the positioning rod (123) and the inner circumference of the discharge cover (121); The impurity removal device further comprises a plurality of vibrators (3), wherein the plurality of vibrators (3) are respectively mounted on the outer circumferences of the plurality of outer cylinders (212); The impurity removal device further comprises at least one inner corrugated tube (5), wherein the inner corrugated tube (5) is installed between any two adjacent inner cylinders (211).

2. A classification type impurity removal device for lubricating oil processing as claimed in claim 1, characterized in that: The Jiaolong filter screen (22) further comprises a plurality of second baffles (223), wherein the plurality of second baffles (223) are connected between the inner cylinder (211) and the outer cylinder (212), and are connected to a side of the Jiaolong filter leaf (221) facing away from the first connecting rod (213), and are arranged at intervals.

3. A classification type impurity removal device for lubricating oil processing as claimed in claim 1, characterized in that: The impurity removal device further comprises a plurality of outer corrugated tubes (4), wherein the plurality of outer corrugated tubes (4) are respectively mounted on one end of the plurality of outer cylinders (212) close to the discharge cover (121).

4. A classification type impurity removal device for lubricating oil processing as claimed in claim 1, characterized in that: The feed end cover (11) comprises a feed cover (111), a feed pipe (112), a cover plate (113) and a plurality of second connecting rods (114); the feed pipe (112) is connected to the feed cover (111); the cover plate (113) is arranged to cover an end of the inner cylinder (211) close to the feed cover (111); and the plurality of second connecting rods (114) are connected between the inner circumference of the feed cover (111) and the cover plate (113).

5. A classification type impurity removal device for lubricating oil processing as claimed in claim 1, characterized in that: The positioning rod (123) is provided with a plurality of snap-in grooves (125), and the plurality of snap-in grooves (125) are respectively arranged in a one-to-one correspondence with the plurality of inner cylinders (211); the impurity removing device further comprises a plurality of bearing structures (6), the plurality of bearing structures (6) are respectively detachably snap-into the plurality of snap-in grooves (125), and are configured to be arranged in a one-to-one correspondence with the plurality of inner cylinders (211) so as to carry the plurality of inner cylinders (211).

6. A classification type impurity removal device for lubricating oil processing as claimed in claim 1, characterized in that: The impurity removal device further comprises a decanter centrifuge (7), wherein the decanter centrifuge (7) is mounted on the discharge end cover (12) and is in communication with the discharge end cover (12).

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