CN217615087U

CN217615087U - End face sealing structure of feeding chute and mill spiral of wet ball and rod mill

Info

Publication number: CN217615087U
Application number: CN202221442956.3U
Authority: CN
Inventors: 王新国; 黄海江; 武绍良
Original assignee: Luoyang Zhongde Heavy Industry Co ltd
Current assignee: Luoyang Zhongde Heavy Industry Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-10-21
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a wet-type ball, rod mill feeding chute and mill spiral's terminal surface seal structure, including feeding chute, feeding spiral and support, feeding chute's chute stretches into to the feeding spiral in, support and feeding chute fixed connection, feeding chute, feeding spiral junction adopt end face seal structure sealed, end face seal structure includes felt ring and jackscrew in clamping ring, the flange in sealing flange, sealed packing, the flange. This scheme is direct to connect and seal feeding chute and feeding spiral with end face seal structure, can save feeder and feeder front-end connection hopper to solved prior art and connect hopper and feeder junction to leak, the problem of leaking the thick liquid, the end face seal structure of this scheme of use has alleviateed equipment weight, the cost is reduced reduces the change time, the material passing time is short, reducing wear, vulnerable part is the standard component, it is convenient to change.

Description

End face sealing structure of feeding chute and mill spiral of wet ball and rod mill

Technical Field

The utility model relates to a terminal surface seal structure field, more specifically says, relates to the terminal surface seal structure of wet-type ball, rod mill feeding chute and mill spiral.

Background

At present, the common feeding modes of the feeding part of the wet mill include a drum feeder, a volute type feeder and a combined feeder. The drum feeder is characterized in that a receiving hopper is additionally arranged in the front of the drum feeder, the receiving hopper is connected with the receiving hopper, materials pass through an inner arc-shaped plate of an inner core of the feeder and then enter a feeding screw, and then the materials enter a mill. The volute type feeder is provided with a single head and double heads, a trough is manufactured below the volute type feeder, and an excavating scoop of the volute type feeder excavates materials into the feeder from the trough and the materials enter a mill through rotation of the mill. The combined feeder is a combined drum feeder and a volute type feeder.

The three feeders are relatively complicated in factory manufacturing, the inner cores of the feeders are cast parts, the casting is complex, the box collapse is easy, the feeders need to be welded and formed with steel plates after casting, and the whole weight is large. Especially, the volute type feeder and the combined feeder have horizontal acting force on a main bearing of a mill, the service life of the bearing is shortened, in the using process, a feed hopper needs to be additionally arranged at the front of the feeder, materials seriously scour an inner core of the feeder, the cost is increased for removing iron in the later period of non-metal ores, the replacement cost is high after abrasion, the replacement time is long, and in addition, the problems of water leakage and slurry leakage are easily caused at the joint of the receiving hopper and the feeder.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a wet-type ball, rod mill feeding chute and mill spiral's terminal surface seal structure.

In order to solve the above problems, the utility model adopts the following technical proposal.

End face seal structure of wet-type ball, rod mill feeding chute and mill spiral, including feeding chute, feeding spiral and support, the chute of feeding chute stretches into to the feeding spiral in, support and feeding chute fixed connection, feeding chute, feeding spiral junction adopt end face seal structure sealed, end face seal structure includes clamping ring in sealing flange, sealed packing, the flange, felt circle and jackscrew, the clamping ring in the flange, flange and sealed packing overlap in proper order on the pipe of feeding chute from a left side to the right side, the felt circle all is located sealing flange in sealing packing, the flange, the clamping ring in the flange, the jackscrew sets up in sealing flange left side, the jackscrew will seal packing and feeding spiral's end face laminating tight reality.

As a further description of the above technical solution: the sealing flange comprises an upper semicircle and a lower semicircle, the lower semicircle is fixed on a circular pipe of the feeding chute through bolts, and the upper semicircle and the lower semicircle are connected into a whole circle through bolts.

As a further description of the above technical solution: the sealing packing is an oil-immersed asbestos packing, and an interface of the sealing packing is right above the sealing packing.

As a further description of the above technical solution: the felt ring in the flange is an oil-impregnated felt.

As a further description of the above technical solution: the clearance between the sealing flange and the end face of the feeding spiral is less than or equal to 1mm, and the concentricity error between the circular pipe of the feeding chute and the mill is less than or equal to 1mm.

Compared with the prior art, the utility model has the advantages of:

(1) the scheme directly connects and seals the feeding chute and the feeding screw by using the end face sealing structure, can save the feeder and the front receiving hopper of the feeder, and solves the problems of water leakage and slurry leakage at the joint of the receiving hopper and the feeder in the prior art.

(2) The end face sealing structure of the scheme of use lightens the weight of equipment, reduces the cost, reduces the replacement time, has short material passing time, reduces abrasion, and the easily damaged part is a standard part and is convenient to replace.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a side view of the end face sealing structure of the present invention;

fig. 3 is a partial front sectional view of fig. 1 according to the present invention.

The reference numbers in the figures illustrate:

1. a feed chute; 2. a feed screw; 3. a support; 4. an end face sealing structure; 41. sealing the flange; 42. sealing the packing; 43. a flange inner pressing ring; 44. a flange inner felt ring; 45. and (5) jacking the screw.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention;

referring to fig. 1 to 3, the end face sealing structure of the feeding chute and the mill spiral of the wet ball and rod mill comprises a feeding chute 1, a feeding spiral 2 and a support 3, wherein a chute of the feeding chute 1 extends into the feeding spiral 2, the support 3 is fixedly connected with the feeding chute 1, a joint of the feeding chute 1 and the feeding spiral 2 is sealed by an end face sealing structure 4, the end face sealing structure 4 comprises a sealing flange 41, a sealing packing 42, a flange inner pressing ring 43, a flange inner felt ring 44 and a jackscrew 45, the flange inner pressing ring 43, the flange inner felt ring 44 and the sealing packing 42 are sequentially sleeved on a circular pipe of the feeding chute 1 from left to right, the sealing packing 42, the flange inner pressing ring 43 and the flange inner felt ring 44 are all located in the sealing flange 41, the jackscrew 45 is arranged on the left side of the sealing flange 41, the jackscrew 45 tightly attaches the sealing packing 42 and the end face of the feeding spiral 2, in addition, the sealing packing 42 is worn after being used for a period of time, and the jackscrew 45 needs to be adjusted to be attached.

Further, the sealing flange 41 comprises an upper semicircle and a lower semicircle, the lower semicircle is fixed on the circular tube of the feeding chute 1 through bolts, the upper semicircle and the lower semicircle are connected through bolts to form a whole circle, and the sealing packing 42 is fixed through the jackscrew 45.

Wherein, sealed packing 42 is immersion oil asbestos packing, and this immersion oil asbestos packing is the standard part, all purchases in local market during the change, and sealed packing 42's interface is directly over, and felt circle 44 is the immersion oil felt in the flange.

In addition, the clearance between the sealing flange 41 and the end face of the feeding spiral 2 is less than or equal to 1mm, and the concentricity error between the circular tube of the feeding chute 1 and the mill is less than or equal to 1mm.

In conclusion: when the end face sealing structure 4 is used, materials are conveyed into the feeding chute 1 by the conveyor, the chute groove extends into the feeding spiral 2, the materials are directly fed into the feeding spiral 2 by self weight, the materials rotate along with the feeding spiral 2 and are fed into the grinding mill by the spiral blades, after the end face sealing structure 4 is adopted, slurry at the feeding port of the grinding mill before falls on the ground, so that the phenomena of dirt on the ground, water and the like are obviously improved, the end face sealing structure 4 is simple to manufacture, the cost is reduced, the replacement is convenient, the replacement time is short, the replacement of an abrasion part is a standard part, and the abrasion part can be purchased in the local market.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. End face sealing structure of wet-type ball, rod mill feeding chute and mill spiral, including feeding chute (1), feeding spiral (2) and support (3), the chute of feeding chute (1) stretches into in feeding spiral (2), support (3) and feeding chute (1) fixed connection, its characterized in that: the feeding chute (1), feeding spiral (2) junction adopt end face seal structure (4) sealed, end face seal structure (4) are including clamping ring (43), flange inner felt circle (44) and jackscrew (45) in sealing flange (41), sealed packing (42), the flange, clamping ring (43), flange inner felt circle (44) and sealed packing (42) overlap in proper order on the pipe of feeding chute (1) from a left side to the right side in flange, clamping ring (43), flange inner felt circle (44) all are located sealing flange (41), jackscrew (45) set up in sealing flange (41) left side, jackscrew (45) will seal packing (42) and the terminal surface laminating of feeding spiral (2) are tight.

2. The end face seal structure of a wet ball and rod mill feed chute and mill spiral as claimed in claim 1, wherein: the sealing flange (41) comprises an upper semicircle and a lower semicircle, the lower semicircle is fixed on a circular tube of the feeding chute (1) through bolts, and the upper semicircle and the lower semicircle are connected into a whole circle through bolts.

3. The wet ball and rod mill feed chute to mill spiral end face seal structure of claim 1, wherein: the sealing packing (42) is an oil-immersed asbestos packing, and an interface of the sealing packing (42) is right above the oil-immersed asbestos packing.

4. The end face seal structure of a wet ball and rod mill feed chute and mill spiral as claimed in claim 1, wherein: the inner felt ring (44) of the flange is made of oil-impregnated felt.

5. The wet ball and rod mill feed chute to mill spiral end face seal structure of claim 1, wherein: the end face clearance between the sealing flange (41) and the feeding spiral (2) is less than or equal to 1mm, and the concentricity error between a circular tube of the feeding chute (1) and the grinding machine is less than or equal to 1mm.