Grinding head and grinding tail sealing system of cement grinding mill

Abstract

The utility model discloses a cement mill grinding head and grinding tail sealing system which comprises seam allowance bases arranged at the top and the bottom of a sliding shoe and further comprises a sealing assembly, the sealing assembly comprises a sliding shoe cover arranged on the inner wall of the seam allowance base, a connecting ring is arranged on the outer side of the seam allowance base in a sleeved mode, and a blocking ring is arranged at the bottom of the connecting ring. A staggered limiting part is inserted into the bottom of the blocking ring; an oil collecting part is arranged on the side of the connecting ring; the sealing assembly comprises a human-shaped sealing ring and a cashmere felt, the human-shaped sealing ring is arranged on the outer side of the spigot base, the cashmere felt is arranged at the bottom of the connecting ring, a fastening part is arranged on the outer side of the spigot base, and a connecting part is arranged at the bottom of the connecting ring; the herringbone sealing ring is arranged on the outer side of the spigot base, the cashmere felt fixed by the connecting part is arranged at the bottom of the connecting ring, the dislocation limiting part is used for sealing again, and the problems that lubricating oil leaks out and dust easily enters the sliding shoe cover after a single layer of sealing is abraded are solved through a three-layer sealing measure.

Description

Technical Field

[0001] This utility model relates to the field of mill sealing technology, and in particular to a cement mill head and tail sealing system. Background Technology

[0002] In cement production, the grinding mill is one of the key pieces of equipment, and its operating efficiency and stability directly affect the output and quality of the entire production line. The mill's sealing system is crucial for preventing dust leakage, reducing lubricant consumption, and protecting internal mechanical components from external contamination.

[0003] Existing cement mill head and tail seals are generally single-layer wool felt seals or single-layer fluororubber seals, which have poor wear resistance, poor sealing performance, and short service life. After wear, serious oil leakage pollutes the environment and wastes lubricating oil. At the same time, dust in the ambient air can easily pass through the worn seals and enter the lubricating oil, accelerating the scratches and wear of the sliding shoes and Babbitt alloy bearing surfaces, leading to poor equipment lubrication, high temperatures, and affecting the normal production of the mill.

[0004] Therefore, in order to address the aforementioned sealing problems, this utility model proposes a cement mill head and tail sealing system. Utility Model Content

[0005] The purpose of this invention is to provide a cement mill head and tail sealing system to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cement mill head and tail sealing system, including a stop base disposed on the top and bottom of the sliding shoe, and further comprising:

[0007] A sealing assembly for sealing the sliding shoe port, the sealing assembly includes a sliding shoe cover disposed on the inner wall of the stop base, a connecting ring sleeved on the outer side of the stop base, a blocking ring disposed at the bottom of the connecting ring, a misalignment limiting part inserted through the bottom of the blocking ring, and an oil collection part disposed on the side of the connecting ring and at the bottom of the sliding shoe.

[0008] A sealing assembly for preventing lubricating oil leakage includes a human-shaped sealing ring and a cashmere felt. The human-shaped sealing ring is disposed on the outside of the stop base, and the cashmere felt is disposed at the bottom of the connecting ring and located on the side of the misalignment limiting part. The outside of the stop base is provided with a fastening part for fixing the human-shaped sealing ring, and the bottom of the connecting ring is provided with a connecting part for fixing the cashmere felt.

[0009] Preferably, the misalignment limiting part includes a first isolation ring and a second isolation ring disposed at the top and bottom of the sliding shoe, the second isolation ring being disposed outside the first isolation ring, and the blocking ring being interposed and connected to the opposite sides of the first isolation ring and the second isolation ring.

[0010] Preferably, the fastening part includes a tightening ring sleeved on the outside of the human-shaped sealing ring, the tightening ring being used to limit the stop base and the human-shaped sealing ring.

[0011] Preferably, the connecting part includes a fixing ring disposed at the bottom of the connecting ring, a cashmere felt is sleeved on the outside of the fixing ring, and a fixing member for fixing the cashmere felt is sleeved on the outside of the cashmere felt.

[0012] Preferably, the fastener includes a limiting ring, which is used to compress and fix the cashmere felt to the fixing ring.

[0013] Preferably, the top of the connecting ring is threaded with multiple bolts, which are used to insert and fix the fixing ring.

[0014] Preferably, the oil collection part includes an oil return pipe that is inserted into the bottom of the connecting ring, and the end of the oil return pipe away from the connecting ring is inserted into the side of the skid cover.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] This utility model features a sliding cover at both the top and bottom of the sliding track, a stop base on the outside of the sliding cover, a human-shaped sealing ring fixed by a fastening part on the outside of the stop base, and a cashmere felt fixed by a connecting part at the bottom of the connecting ring. It then uses a misaligned limiting part for a second sealing. Through this three-layer sealing measure, the problem of lubricating oil leakage and external dust entering the interior of the sliding cover after the single-layer seal wears out is avoided. Attached Figure Description

[0017] Figure 1 This is one of the overall structural schematic diagrams of this utility model.

[0018] Figure 2 The second schematic diagram shows the overall structure of this utility model.

[0019] Figure 3 This is a cross-sectional view of the entire utility model.

[0020] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0021] Figure 5 This is a cross-sectional view of the connection between the connecting ring and the fixing ring of this utility model.

[0022] In the diagram: 1. Stop base; 2. Slipper cover; 3. Tightening ring; 4. Human-shaped sealing ring; 5. Connecting ring; 501. Blocking ring; 502. First isolation ring; 503. Second isolation ring; 6. Fixing ring; 601. Bolt; 7. Cashmere felt; 701. Limiting ring; 8. Oil return pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1-5 The cement mill head and tail sealing system shown includes a stop base 1 disposed on the top and bottom of the sliding shoe, and also includes a sealing component and a sealing component;

[0025] It should be noted that the sealing component is used to seal the sliding shoe port, the sealing component is used to prevent lubricating oil leakage, and the stop base 1 has no direct contact with the sliding shoe.

[0026] Specifically, the sealing component includes a sliding cover 2 disposed on the inner wall of the stop base 1, a connecting ring 5 sleeved on the outer side of the stop base 1, a blocking ring 501 disposed at the bottom of the connecting ring 5, a misalignment limiting part inserted through the bottom of the blocking ring 501, and an oil collection part disposed on the side of the connecting ring 5 and at the bottom of the sliding track.

[0027] Specifically, the sliding cover 2 is welded and fixed to the stop base 1, the connecting ring 5 is welded and fixed to the stop base 1, and the misalignment limiting part includes a first isolation ring 502 and a second isolation ring 503 disposed on the top and bottom of the sliding cover. The second isolation ring 503 is disposed on the outside of the first isolation ring 502, and the blocking ring 501 is inserted and connected to the opposite side of the first isolation ring 502 and the second isolation ring 503.

[0028] It should be noted that both the first isolation ring 502 and the second isolation ring 503 are welded and fixed to the sliding shoe, the blocking ring 501 and the connecting ring 5 are welded and fixed, and the radius of the second isolation ring 503 is larger than the radius of the first isolation ring 502.

[0029] Specifically, the oil recovery section includes an oil return pipe 8 that is inserted and connected to the bottom of the connecting ring 5, and the end of the oil return pipe 8 away from the connecting ring 5 is inserted and connected to the side of the skid cover 2.

[0030] It should be noted that the oil return pipe 8 is welded and fixed at the intersection with the connecting ring 5, and the oil return pipe 8 is welded and fixed at the intersection with the sliding cover 2. The diameter of the oil return pipe 8 is 50mm. The oil return pipe 8 collects the lubricating oil leaking from the connecting ring 5 and guides it back to the sliding cover 2 at the bottom of the sliding shoe, so as to recycle it.

[0031] Specifically, the sealing assembly includes a human-shaped sealing ring 4 and a cashmere felt 7. The human-shaped sealing ring 4 is located on the outside of the stop base 1, and the cashmere felt 7 is located at the bottom of the connecting ring 5 and on the side of the misalignment limiting part. The outside of the stop base 1 is provided with a fastening part for fixing the human-shaped sealing ring 4, and the bottom of the connecting ring 5 is provided with a connecting part for fixing the cashmere felt 7.

[0032] It should be noted that the bottom of the human-shaped sealing ring 4 is in close contact with the sliding surface. The human-shaped sealing ring 4 is made of fluororubber. The fastening part includes a tightening ring 3 sleeved on the outside of the human-shaped sealing ring 4. The tightening ring 3 is used to limit the stop base 1 and the human-shaped sealing ring 4.

[0033] Specifically, the tightening ring 3 is a 3mm thick ring. The tightening ring 3 fixes the human-shaped sealing ring 4 by compression. The connecting part includes a fixing ring 6 set at the bottom of the connecting ring 5. A cashmere felt 7 is sleeved on the outside of the fixing ring 6. A fixing member for fixing the cashmere felt 7 is sleeved on the outside of the cashmere felt 7.

[0034] It should be noted that the top of the connecting ring 5 is threaded with multiple bolts 601, which are used to fix the fixing ring 6. The top of the fixing ring 6 is provided with a threaded slot for the bolts 601 to pass through. The fasteners include a limiting ring 701, which is used to compress and fix the cashmere felt 7 and the fixing ring 6. Both the human-shaped sealing ring 4 and the cashmere felt 7 are ring-shaped structures.

[0035] In actual use, a stop base 1 is provided on the outside of the track cover 2, and a human-shaped sealing ring 4 is provided on the outside of the stop base 1 for fastening. A cashmere felt 7 is provided at the bottom of the connecting ring 5 for connecting. Then, the misaligned limiting part is used for sealing again. Through the three-layer sealing measures, the problem of lubricating oil leakage and external dust entering the interior of the track cover 2 after the single layer of seal wears out is avoided.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cement mill head mill end sealing system comprising a rebate seat (1) provided at the top and bottom of the slide shoe, characterized in that, Also include: The closing assembly is used for the closing of the slide port, which includes the slide cover (2) arranged in the inner wall of the stop base (1), and the outer side of the stop base (1) is sleeved with a connecting ring (5), the bottom of the connecting ring (5) is provided with a blocking ring (501), the bottom of the blocking ring (501) is connected with a staggered limiting part, and the edge side of the connecting ring (5) and the bottom of the slide are provided with an oil collecting part; The sealing assembly is used for preventing the lubricating oil from leaking out, which includes a human-shaped sealing ring (4) and a cashmere felt (7), the human-shaped sealing ring (4) is arranged on the outer side of the stop base (1), the cashmere felt (7) is arranged on the bottom of the connecting ring (5) and the edge side of the staggered limiting part, the outer side of the stop base (1) is provided with a fastening part for fixing the human-shaped sealing ring (4), and the bottom of the connecting ring (5) is provided with a connecting part for fixing the cashmere felt (7).

2. A cement mill head mill end seal system as claimed in claim 1, wherein, The staggered limiting part includes a first isolation ring (502) and a second isolation ring (503) arranged on the top and bottom of the slide, the second isolation ring (503) is arranged on the outer side of the first isolation ring (502), and the blocking ring (501) is connected on the opposite side of the first isolation ring (502) and the second isolation ring (503).

3. A cement mill head mill end seal system as claimed in claim 1, wherein, The fastening part includes a tightening ring (3) sleeved on the outer side of the human-shaped sealing ring (4), which is used for limiting the stop base (1) and the human-shaped sealing ring (4).

4. A cement mill head mill end seal system as claimed in claim 1, wherein, The connecting part includes a fixing ring (6) arranged on the bottom of the connecting ring (5), the outer side of the fixing ring (6) is sleeved with a cashmere felt (7), and the outer side of the cashmere felt (7) is sleeved with a fixing member for fixing the cashmere felt (7).

5. A cement mill head mill end seal system according to claim 4, wherein, The fixing member includes a limiting ring (701) for extruding the cashmere felt (7) and the fixing ring (6).

6. A cement mill head mill end seal system according to claim 5 wherein, The top of the connecting ring (5) is threadedly connected with a plurality of bolts (601), and the bolts (601) are used for penetrating and fixing the fixing ring (6).

7. A cement mill head mill end seal system as claimed in claim 1, wherein, The oil collecting part includes an oil return pipe (8) connected to the bottom of the connecting ring (5), and one end of the oil return pipe (8) away from the connecting ring (5) is connected to the edge side of the slide cover (2).

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