CN217189955U - Novel mill feed seal structure - Google Patents
Novel mill feed seal structure Download PDFInfo
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- CN217189955U CN217189955U CN202121469004.6U CN202121469004U CN217189955U CN 217189955 U CN217189955 U CN 217189955U CN 202121469004 U CN202121469004 U CN 202121469004U CN 217189955 U CN217189955 U CN 217189955U
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- feeding
- inner cylinder
- mill feed
- pipe
- front pipe
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Abstract
The utility model provides a novel mill feed seal structure belongs to mechanical engineering technical field, concretely relates to overflow type wet-type mill feed seal structure's improvement. The invention provides a feeding sealing structure of a mill, which is simple in structure and good in sealing effect. The invention comprises a feeding lining and a front pipe of a feeding part, and is characterized in that: a flange is arranged at a feeding port of the feeding lining, an inner cylinder is arranged in the flange, and a spiral structure is arranged on the inner surface of the inner cylinder; the feeding portion front pipe is arranged in the inner cylinder body, and a gap is formed between the feeding portion front pipe and the spiral structure.
Description
Technical Field
The utility model belongs to the technical field of mechanical engineering, concretely relates to overflow type wet mill feed seal structure's improvement.
Background
The prior structure of the sealing device for the feeding material of the overflow type wet mill adopts a three-tongue seal (figure 5) or a conical seal (figure 6). However, the three-tongue sealing ring 8 and the conical sealing gasket 9 in the existing structure have shorter service life, and rubber parts are aged and worn after being used for a long time, and if the rubber parts are not replaced in time, material leakage is caused, so that resource waste is caused, and the field environment is influenced.
Disclosure of Invention
The utility model discloses be exactly to above-mentioned problem, the mill feed seal structure that provides a simple structure, sealed effectual.
In order to realize the above object of the present invention, the present invention adopts the following technical solution, the present invention includes a feeding bushing and a feeding portion front tube, its characterized in that: a flange is arranged at a feeding port of the feeding bushing, an inner cylinder is arranged in the flange, and a spiral structure is arranged on the inner surface of the inner cylinder; the feeding portion front pipe is arranged in the inner cylinder body, and a gap is formed between the feeding portion front pipe and the spiral structure.
As an optimized scheme of the utility model, the feed portion front tube is provided with the jet-propelled pipe outward, and the gas outlet of jet-propelled pipe is corresponding with the clearance between feed portion front tube and the helical structure.
Furthermore, jet-propelled pipe one end links to each other with the instrument air supply, and the jet-propelled pipe other end seals, and the jet-propelled pipe is annular form welded fastening on the feed portion head tube.
Furthermore, the surface of one side of the gas injection pipe, which corresponds to the gap between the front pipe of the feeding part and the spiral structure, is uniformly provided with gas outlets with the diameter of phi 3 mm.
As another preferred scheme of the utility model, the helicitic texture of interior barrel is T type screw thread.
Further, the thread structure of the inner cylinder body is a T-shaped thread with a tolerance on the diameter.
The utility model has the advantages that: 1. the utility model discloses rational in infrastructure, sealed effectual, reduce substantially and leak the risk.
2. The utility model discloses a gas outlet spun instrument wind and the screw thread structure cooperation of jet-propelled pipe form the combination seal, the possibility of the thick liquid that leaks of here of great reduction.
3. The sealing structure of the utility model has small operation abrasion and long service life; meanwhile, the structure is simple, and the production, the processing and the maintenance are convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the sealing system of the present invention.
Fig. 3 is an expanded view of the gas lance.
Fig. 4 is a structural schematic diagram of the inner cylinder.
Fig. 5 is a schematic view of a prior art triple tongue seal.
Fig. 6 is a schematic diagram of a prior art conical seal.
In the attached drawing, 1 is a flange, 2 is a feeding lining, 3 is an inner cylinder, 4 is an air injection pipe, 5 is a front pipe of a feeding part, 6 is a spiral structure, 7 is an air outlet, 8 is a three-tongue sealing ring in the prior art, and 9 is a conical sealing gasket in the prior art.
Detailed Description
The utility model discloses a feeding bush 2 and with feed portion head tube 5, its characterized in that: a flange 1 is arranged at a feeding port of the feeding bush 2, an inner cylinder 3 is arranged in the flange 1, and a spiral structure 6 is arranged on the inner surface of the inner cylinder 3; the feeding part front pipe 5 is arranged in the inner cylinder 3, and a gap is arranged between the feeding part front pipe 5 and the spiral structure 6.
As an optimized scheme of the utility model, the feed portion head tube 5 is provided with jet-propelled pipe 4 outward, and the gas outlet 7 of jet-propelled pipe 4 is corresponding with the clearance between feed portion head tube 5 and the helical structure 6.
Furthermore, one end of the gas injection pipe 4 is connected with an instrument gas source, the other end of the gas injection pipe 4 is sealed, and the gas injection pipe 4 is welded and fixed on the front pipe 5 of the feeding part in an annular shape.
Furthermore, the surface of one side of the gas injection pipe 4 corresponding to the gap between the front pipe 5 of the feeding part and the spiral structure 6 is uniformly provided with gas outlets 7 with the diameter of 3 mm.
As another preferred scheme of the utility model, the helicitic texture of interior barrel 3 is T type screw thread.
Further, the thread structure of the inner cylinder 3 is a T-shaped thread with a tolerance on the diameter.
When the mill is in operation, in case the ground paste in the mill barrel leaks, will flow into the gap department between the helical structure 6 of feed portion head tube 5 and interior barrel 3, when the mill barrel is rotatory, interior barrel 3 also can make rotary motion along with the mill barrel, the rotatory clearance department that will form the negative pressure between feed portion head tube 5 and helical structure 6 of diameter tape tolerance's T type screw thread, the suction that this kind of negative pressure produced can take most ground paste back to in the barrel, great reduction leak the thick liquid.
In addition, instrument air ejected from an air outlet 7 of the air ejector pipe 4 blows air at a gap between the front pipe 5 of the feeding part and the spiral structure 6, generated negative pressure is increased, the negative pressure is matched with the thread structure of the inner cylinder 3 to form combined sealing, and the possibility of slurry leakage at the position is greatly reduced.
It should be understood that the above detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as the use requirement is satisfied, the utility model is within the protection scope.
Claims (6)
1. The utility model provides a novel mill feed seal structure, including feeding bush (2) and with feed portion head tube (5), its characterized in that: a flange (1) is arranged at a feeding port of the feeding bushing (2), an inner cylinder (3) is arranged in the flange (1), and a spiral structure (6) is arranged on the inner surface of the inner cylinder (3); the feeding portion front pipe (5) is arranged in the inner cylinder body (3), and a gap is formed between the feeding portion front pipe (5) and the spiral structure (6).
2. A novel mill feed sealing structure as claimed in claim 1, wherein: an air injection pipe (4) is arranged outside the feeding part front pipe (5), and an air outlet (7) of the air injection pipe (4) corresponds to a gap between the feeding part front pipe (5) and the spiral structure (6).
3. A novel mill feed sealing structure according to claim 2, characterized in that: one end of the gas injection pipe (4) is connected with an instrument gas source, the other end of the gas injection pipe (4) is sealed, and the gas injection pipe (4) is welded and fixed on the front pipe (5) of the feeding part in an annular shape.
4. A novel mill feed sealing structure according to claim 3, characterized in that: and air outlets (7) with the diameter of 3mm are uniformly distributed on the surface of one side of the air injection pipe (4) corresponding to the gap between the front pipe (5) of the feeding part and the spiral structure (6).
5. A novel mill feed sealing structure according to claim 1, characterized in that: the thread structure of the inner cylinder body (3) is T-shaped thread.
6. A novel mill feed seal structure of claim 5, characterized in that: the thread structure of the inner cylinder body (3) is a T-shaped thread with a tolerance in diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121469004.6U CN217189955U (en) | 2021-06-30 | 2021-06-30 | Novel mill feed seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121469004.6U CN217189955U (en) | 2021-06-30 | 2021-06-30 | Novel mill feed seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217189955U true CN217189955U (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202121469004.6U Active CN217189955U (en) | 2021-06-30 | 2021-06-30 | Novel mill feed seal structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN217189955U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231154A (en) * | 2021-06-30 | 2021-08-10 | 中国有色（沈阳）冶金机械有限公司 | Novel mill feed seal structure |
-
2021
- 2021-06-30 CN CN202121469004.6U patent/CN217189955U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231154A (en) * | 2021-06-30 | 2021-08-10 | 中国有色（沈阳）冶金机械有限公司 | Novel mill feed seal structure |
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