Waste oil recovery device for coal mill slipper tile

By designing an oil receiving strip and sealing strip clamping structure in the coal mill, the problem of lubricating oil leakage and environmental pollution is solved, the efficient recovery of lubricating oil is achieved and waste is reduced, the stable operation of the equipment is ensured and the aesthetics are improved.

CN223814564UActive Publication Date: 2026-01-20DENGFENG SONGJI CEMENT
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Patent Information

Application Number
CN202520748927.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-01-20
Estimated Expiration
2035-04-18

AI Technical Summary

Technical Problem

In coal mills, wear of sealing strips leads to lubricating oil leakage, polluting the working environment and requiring frequent cleaning. Existing technologies cannot effectively recycle and reduce waste.

Method used

A waste oil recovery device for coal mill sliding shoe bearings was designed, including an oil receiving strip and a sealing strip pressing structure. The oil receiving strip recovers leaked lubricating oil through a groove and a discharge pipe, and the sealing strip is squeezed and sealed by a pressure plate and a pressure block structure. The bolt connection facilitates disassembly and maintenance.

Benefits of technology

Effective recovery of leaked lubricating oil reduces environmental pollution, improves recovery efficiency, reduces resource waste, ensures stable equipment operation, and enhances the aesthetics of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a coal mill slide shoe waste oil recovery device, which belongs to the technical field of coal mills, and comprises a frame and a barrel mounted in the frame, a fried bread stick is arranged on the frame and positioned on the lower side of the barrel, and a groove for containing lubricating oil is arranged on the upper side of the fried bread stick. Oil leaked from the joint of the rack and the barrel can fall into the groove of the fried bread stick, and a discharging pipe is arranged at the bottom of the fried bread stick and communicated with the groove of the fried bread stick. Waste oil leaked from the sealing rubber strip can be contained and recycled, the waste oil is prevented from being contaminated on a rack and the ground in a large area, the working environment is prevented from being polluted, and workers do not need to frequently clean a working site.
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Description

TECHNICAL FIELD

[0001] The utility model relates to coal mill technical field, concretely relates to coal mill sliding shoe tile waste oil recovery device. BACKGROUND

[0002] In industrial production, the coal mill is a kind of key equipment widely used in coal crushing and grinding.The normal operation of coal mill is crucial to ensure production efficiency and product quality.The sliding shoe tile installed in the rack plays the role of supporting and lubricating the coal mill cylinder, and can be lubricated by smearing lubricating oil to the coal mill cylinder.

[0003] At the same time, the manufacturer often equips the inner ring wall of the rack with a sealing rubber strip to prevent the lubricating oil of the sliding shoe tile from flowing out of the surface of the rack, but since the inner ring of the sealing rubber strip is closely attached to the coal mill cylinder, the degree of wear of the sealing rubber strip will also increase under the long-time rotation of the coal mill cylinder, and under long-term wear, a gap will appear between the sealing rubber strip and the coal mill cylinder, causing a small amount of lubricating oil to flow out of the gap caused by the wear of the sealing rubber strip.

[0004] The flowing lubricating oil will be stained on the rack or directly dropped on the ground, causing waste and polluting the working environment, which requires frequent cleaning of the work site by the staff. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the utility model provides a coal mill sliding shoe tile waste oil recovery device, which can collect and recover the leaked waste oil, prevent the waste oil from being widely stained on the rack and the ground, prevent the working environment from being polluted, and avoid the staff from frequently cleaning the work site.

[0006] To solve the above technical problems, the utility model provides a coal mill sliding shoe tile waste oil recovery device, which comprises a rack, a cylinder is installed in the rack through a sliding shoe tile, an oil receiving strip is arranged on the rack, and the oil receiving strip is located at the lower side of the cylinder; a groove for receiving lubricating oil is arranged on the upper surface of the oil receiving strip; when waste oil flows out of the gap between the rack and the cylinder, the waste oil can drop into the groove of the oil receiving strip, thereby recovering the waste oil and preventing the waste oil from being widely stained on the rack or dropping to the ground; a discharge pipe is arranged at the bottom of the oil receiving strip and communicates with the groove of the oil receiving strip, so that the waste oil in the groove can be discharged through the discharge pipe, facilitating the staff to collect the waste oil to avoid waste, and thereby avoiding the staff from frequently cleaning the work site.

[0007] The oil receiving strip is in a circular arc structure, and the radius of the oil receiving strip is matched with the radius of the cylinder; the discharge pipe is located at the bottom of the arc surface of the oil receiving strip, so that after the waste oil enters the groove, the waste oil is concentrated at the discharge pipe through the circular arc structure, facilitating discharge.

[0008] The inner ring of the frame is provided with a sealing rubber strip for sealing, and a pressing plate is arranged on the circular surface of the sealing rubber strip, the pressing plate is an annular structure matched with the sealing rubber strip, when the sealing rubber strip is worn and a gap is formed between the sealing rubber strip and the cylinder, the pressing plate is used to press the sealing rubber strip to fill the gap, thereby reducing the oil leakage to a certain extent.

[0009] A plurality of bolts with same spacing are fixed on the frame and arranged in a ring around the cylinder, a plurality of pressing blocks are installed on the frame through the bolts, a through hole is arranged on the surface of the pressing block, the bolt is inserted into the through hole of the pressing block, and a nut is installed on the surface of the bolt, the nut is used to extrude and fix the pressing block, the end of the pressing block abuts against the surface of the pressing plate, and the position of the pressing block on the bolt is adjusted by rotating the nut to push the pressing plate to extrude the sealing rubber strip.

[0010] The pressing block is of L-shaped structure, a through hole is arranged on one side of the bending part of the pressing block, the pressing block is inserted into the bolt through the through hole, the pressing block is fixed on the bolt through the nut, and the other end of the bending part of the pressing block abuts against the outer surface of the pressing plate, the pressing block is pushed to move towards the pressing plate by rotating the nut, so as to push the pressing plate to extrude and fix the sealing rubber strip.

[0011] Since the bolts have same spacing, the spacing between the pressing blocks is also same, and the pressing blocks are uniformly distributed on the surface of the pressing plate, so that the pressing force applied by the pressing blocks to the pressing plate is more uniform, and the sealing gasket is subjected to more uniform force, thereby further improving the sealing effect of the sealing rubber strip.

[0012] The oil receiving bar is detachably connected to the pressing block through the bolt, when the oil receiving bar needs to be overhauled, the oil receiving bar can be detached, thereby facilitating the overhaul work.

[0013] A plurality of fixing plates are arranged on the surface of the oil receiving bar, each fixing plate is fixed on the bolt through a nut, the fixing plate is attached to the surface of the pressing block, and the pressing block is located between the fixing plate and the frame, the fixing of the fixing plate is cancelled by rotating the nut to detach the fixing plate from the bolt, and then the fixing plate can be detached from the bolt, thereby disassembling the oil receiving bar.

[0014] The number of the fixing plates is plural, and the number of the fixing plates can be selected according to actual conditions, the fixing plates are symmetrically arranged on both sides of the oil receiving bar, and the fixing plates are welded to the outer side wall of the oil receiving bar, so that the position of the oil receiving bar after installation is more stable.

[0015] A valve is installed in the discharge pipe, when the waste oil in the groove is collected to a certain amount, the valve is opened to discharge the waste oil in the groove from the discharge pipe, thereby facilitating the collection of the waste oil and preventing waste.

[0016] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0017] 1. Effectively recycle waste oil and reduce environmental pollution: The utility model discloses an oil receiving strip arranged on the rack can effectively collect waste oil flowing out of the gap of the sealing rubber strip, prevent the waste oil from being stained on the rack or dripping to the ground in a large area, improve the neatness of the working environment, and avoid frequent cleaning of the site by the staff.

[0018] 2. Improve waste oil recovery efficiency and reduce resource waste: The recess design of the oil receiving strip in combination with the discharge pipe can concentrate and discharge the collected waste oil, facilitate recycling by the staff, reduce the waste of lubricating oil, and reduce production cost.

[0019] 3. Stable structure and convenient maintenance: The oil receiving strip is detachably connected to the pressing block by bolts, facilitating disassembly and maintenance, and the symmetrical distribution of the fixing plate improves the installation stability of the oil receiving strip, ensuring the reliability of long-term operation of the equipment.

[0020] 4. Aesthetically pleasing and practical: The circular arc design of the oil receiving strip is compatible with the arc of the cylinder, making waste oil recovery more efficient and making the overall appearance of the equipment more aesthetically pleasing, improving the overall quality of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic view of the lower structure of the cylinder of the rack of the coal mill of the utility model;

[0022] Figure 2 is a schematic view of the Figure 1 enlarged view of the structure at A of the utility model;

[0023] Figure 3 is a schematic view of the oil receiving strip structure of the utility model;

[0024] Figure 4 is a schematic view of the pressing block structure of the utility model.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 100, rack; 101, sealing rubber strip; 102, bolt;

[0027] 200, cylinder;

[0028] 300, oil receiving strip; 301, fixing plate; 302, nut; 303, discharge pipe;

[0029] 400, pressing plate; 401, pressing block. DETAILED DESCRIPTION

[0030] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the following will combine the drawings of the embodiments of the utility modelFigures 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0031] The coal mill slip shoe waste oil recovery device, according to Figure 1 and Figure 3 As shown: The machine includes a frame 100, inside which are installed sliding shoes to support the rotation of a cylinder 200. The cylinder 200 is mounted on the sliding shoes within the frame 100. An oil-collecting strip 300 is provided on the outer surface of the frame 100, and is installed on the underside of the cylinder 200. The upper surface of the oil-collecting strip 300 has a groove for collecting waste oil. When waste oil from the sliding shoes flows out from the gap between the cylinder 200 and the frame 100, the waste oil falls into the groove of the oil-collecting strip 300, thus collecting and recycling the waste oil and preventing large-scale contamination of the frame 100 and the ground, thus preventing pollution of the working environment. Furthermore, a discharge pipe 303 is provided at the bottom of the oil-collecting strip 300, connected to the groove of the oil-collecting strip 300, allowing the waste oil in the groove to be discharged through the discharge pipe 303, facilitating collection by workers and avoiding waste, thereby reducing the need for frequent cleaning of the work site.

[0032] Specifically, the oil receiving strip 300 has an arc-shaped structure, and the curvature of the arc-shaped structure of the oil receiving strip 300 matches the circular curvature of the corresponding cylinder 200. This ensures that the groove on the surface of the oil receiving strip 300 and the cylinder 200 are at equal distances. This allows the distance from which waste oil drips from the gaps into the grooves to be minimized, thereby reducing the contact area between the waste oil and the frame 100 to a certain extent, thus reducing the area of ​​the frame 100 that is contaminated. It also makes the overall equipment look more aesthetically pleasing. The discharge pipe 303 is located on the arc-shaped surface of the oil receiving strip 300 at the position closest to the ground. Through the arc-shaped oil receiving strip 300, the flowing waste oil enters the groove and is then guided by the arc to collect at the discharge pipe 303 and discharged together.

[0033] Furthermore, when making the oil-sticker 300, the staff can select the arc of the oil-sticker 300 when pressing the arc by using the arc of the cylinder 200 that needs to be used.

[0034] Furthermore, a valve is installed in the discharge pipe 303. When the waste oil in the groove is full, the waste oil in the groove can be removed by opening the valve.

[0035] according to Figure 2 and Figure 4As shown, the sealing rubber strip 101 in the annular structure is arranged between the inner ring of the frame 100 and the outer ring of the barrel 200, the annular surface of the sealing rubber strip 101 is provided with a pressing plate 400, and the pressing plate 400 is an annular structure matched with the sealing rubber strip 101. The annular pressing plate 400 is used to extrude the sealing rubber strip 101, and the gap between the frame 100 and the barrel 200 is filled by extruding the sealing rubber strip 101, thereby reducing the oil leakage to a certain extent.

[0036] Specifically, the outer surface of the frame 100 is uniformly distributed with a plurality of bolts 102 in an annular shape, the bolts 102 are arranged around the barrel 200, and the spacing between each bolt 102 is equal. A plurality of pressing blocks 401 are mounted on the frame 100 through the bolts 102, the pressing blocks 401 are provided with through holes on the surface, so that the bolts 102 penetrate the through holes of the pressing blocks 401, and the end of the pressing block 401 abuts against the surface of the pressing plate 400. When it is necessary to extrude the sealing rubber strip 101, the position of the pressing block 401 on the bolt 102 is adjusted, so that the pressing block 401 extrudes and abuts against the pressing plate 400, thereby transmitting the extrusion force to the sealing rubber strip 101 through the pressing plate 400, and extruding the sealing rubber strip 101.

[0037] Further, the pressing block 401 is an L-shaped structure, and the pressing block 401 is bent to an L-shaped structure of ninety degrees during manufacturing. The through hole is provided on one side of the pressing block 401, the through hole of the pressing block 401 is inserted on the bolt 102, and the bent end of the pressing block 401 abuts against the outer surface of the pressing plate 400, so that the pressing plate 400 is located between the sealing rubber strip 101 and the end of the pressing block 401. Then, the nut 302 is rotationally arranged on the surface of the bolt 102, and the position of the pressing block 401 on the bolt 102 is adjusted by rotating the nut 302. When it is necessary to extrude the sealing rubber strip 101, the nut 302 is rotated to push the pressing block 401 to move towards the frame 100, thereby pushing the pressing plate 400 to extrude the sealing rubber strip 101.

[0038] Further, since the spacing of the bolts 102 is the same, the spacing between the plurality of pressing blocks 401 is also the same, and the pressing blocks 401 are uniformly distributed on the surface of the pressing plate 400. Since the spacing between the pressing blocks 401 is the same, the pressing blocks 401 can exert more uniform pressure on the pressing plate 400, thereby making the pressing plate 400 more uniform in pressure on the sealing rubber strip 101, so that the sealing rubber strip 101 can be more fully filled with the gap, thereby improving the sealing effect.

[0039] According to Figure 2 and Figure 3As shown, the oil receiving bar 300 is detachably connected to the pressing block 401, when the oil receiving bar 300 needs to be overhauled, the oil receiving bar 300 can be detached from the pressing block 401, facilitating the maintenance work of the equipment.

[0040] Specifically, the oil receiving bar 300 is provided with a fixing plate 301 on the surface, a through hole is provided on the surface of the fixing plate 301, the through hole on the surface of the fixing plate 301 is inserted on the bolt 102, the pressing block 401 is located between the fixing plate 301 and the rack 100, and the nut 302 is rotatably arranged on the bolt 102, the fixing plate 301 is extruded and fixed on the pressing block 401 by rotating the nut 302, so that the fixing plate 301 is tightly attached to the surface of the pressing block 401, when the oil receiving bar 300 needs to be disassembled, the nut 302 is rotated to be removed from the bolt 102, then the extrusion and fixation of the fixing plate 301 is cancelled, then the oil receiving bar 300 is lifted to separate the fixing plate 301 from the bolt 102, so as to complete the disassembly, and after the oil receiving bar 300 is disassembled, the nut 302 just removed is reinstalled on the bolt 102 to extrude and fix the pressing block 401.

[0041] Further, the number of fixing plates 301 is multiple, and the workers can weld a certain number of fixing plates 301 on the surface of the oil receiving bar 300 according to the needs when manufacturing the oil receiving bar 300, and the fixing plates 301 are symmetrically distributed on both sides of the oil receiving bar 300, so that the oil receiving bar 300 can be more stable after being installed on the pressing block 401, and the stability of the oil receiving bar 300 is improved.

[0042] The use method of the utility model:

[0043] First, it needs to be clear that the utility model is used for the equipment with less oil leakage and the equipment defects cannot be repaired, when installation is needed, the pressing plate 400 is first attached to the surface of the sealing rubber strip 101, then the L-shaped structure pressing block 401 is inserted on the bolt 102, then the fixing plate 301 on the surface of the oil receiving strip 300 is inserted on the bolt 102 at the specified position, and the oil receiving strip 300 is located at the position below the cylinder 200, then the nut 302 is tightened on the bolt 102, so that the bolt 102 fixes the pressing block 401 on the rack 100, and the pressing plate 400 is extruded by the pressing block 401 to extrude the sealing rubber strip 101, so that the sealing rubber strip 101 fills the gap, and the fixing plate 301 is fixed on the bolt 102 by extruding and fixing between the fixing plate 301 and the pressing block 401 by tightening the nut 302, so that the installation of the oil receiving strip 300 is completed, when the waste oil leaks from the sliding shoe tile in the rack 100, the waste oil flows out from the gap of the sealing washer, and the waste oil can drop into the groove of the oil receiving strip 300, and the waste oil is collected at the position of the discharge pipe 303 through the drainage of the arc structure of the oil receiving strip 300, when the work is finished or the waste oil in the groove is collected to a certain amount, the valve of the discharge pipe 303 is opened, so that the waste oil in the groove is discharged from the discharge pipe 303, so that the leaked waste oil can be recycled, and the waste oil pollution to the working environment is prevented, and the workers can collect the waste oil through the setting of the discharge pipe 303, so that the waste is avoided.

[0044] The above is the preferred embodiment of the utility model, it should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the utility model.

Claims

1. A coal mill sliding shoe waste oil recovery device, comprising a rack (100) and a cylinder (200) installed in the rack (100), characterized in that: The oil receiving strip (300) is arranged on the lower side of the cylinder (200) of the rack (100), and a groove for containing lubricating oil is arranged on the upper side of the oil receiving strip (300), so that the leaked oil at the connecting position of the rack (100) and the cylinder (200) can fall into the groove of the oil receiving strip (300), and a discharge pipe (303) is arranged at the bottom of the oil receiving strip (300) and communicates with the groove of the oil receiving strip (300).

2. The coal mill shoe-pavement waste oil recovery device according to claim 1, characterized in that: The oil receiving strip (300) is in a circular arc structure, and the discharge pipe (303) is arranged at the bottom of the arc surface of the oil receiving strip (300).

3. The coal mill shoe-pavement waste oil recovery device according to claim 1, characterized in that: The outer side of the sealing rubber strip (101) of the rack (100) is provided with a pressing plate (400), the pressing plate (400) is in an annular structure matched with the sealing rubber strip (101), and the pressing plate (400) is arranged on the side of the sealing rubber strip (101) away from the rack (100) to press the sealing rubber strip (101).

4. The coal mill shoe-pavement waste oil recovery device according to claim 3, characterized in that: A plurality of bolts (102) are arranged in a ring shape on the rack (100), and a plurality of pressing blocks (401) are arranged on the rack (100) through the bolts (102), the end of the pressing block (401) abuts against the surface of the pressing plate (400), and the pressing block (401) extrudes the pressing plate (400) to press the sealing rubber strip (101) through abutting against the surface of the pressing plate (400).

5. The coal mill shoe-pavement oil recovery device according to claim 4, characterized in that: The pressing block (401) is in an L-shaped structure, a through hole is arranged on one side of the pressing block (401), the pressing block (401) is arranged on the bolt (102) through the through hole, the pressing block (401) is fixed on the bolt (102) through a nut (302), and the other end of the bent pressing block (401) abuts against the outer surface of the pressing plate (400).

6. The coal mill shoe-pavement oil recovery device according to claim 5, characterized in that: The spacing between the plurality of pressing blocks (401) is the same, and the pressing blocks (401) are uniformly distributed on the surface of the pressing plate (400).

7. The coal mill shoe-pavement oil recovery device of claim 4, wherein: The oil receiving strip (300) is detachably connected to the pressing block (401).

8. The coal mill shoe pit oil recovery apparatus of claim 7, wherein: The surface of the oil receiving strip (300) is provided with a fixing plate (301), the fixing plate (301) is tightly installed on the bolt (102) through a nut (302), and the fixing plate (301) is attached to the surface of the pressing block (401).

9. The coal mill shoe-pavement oil recovery device according to claim 8, characterized in that: The number of the fixing plates (301) is multiple, and the fixing plates (301) are symmetrically arranged on both sides of the oil receiving strip (300).

10. The coal mill shoe-pavement oil recovery device of claim 1, wherein: A valve is arranged in the discharge pipe (303).