CN205236147U

CN205236147U - A sealing device for overflowball mill feed inlet

Info

Publication number: CN205236147U
Application number: CN201520978399.0U
Authority: CN
Inventors: 何志民; 汪涛; 叶俊文; 陆波
Original assignee: Anhui Liuguo Chemical Industry Co Ltd
Current assignee: Anhui Liuguo Chemical Industry Co Ltd
Priority date: 2015-11-27
Filing date: 2015-11-27
Publication date: 2016-05-18
Anticipated expiration: 2025-11-27

Abstract

The utility model discloses a sealing device for overflowball mill feed inlet, including supported flange, first V -arrangement sealing washer, second V -arrangement sealing washer, press cover and seal receptacle, the useful cyclic annular inner chamber of installing the V -arrangement sealing washer in the seal receptacle, supported flange, second V -arrangement sealing washer, the suit is on the feeding nozzle stub to the mill feeding in proper order to press cover, first V -arrangement sealing washer and seal receptacle, when supported flange and seal receptacle were fixed on the mill feed inlet, supported flange and pressure are overlapped respectively will be first, second V -arrangement sealing washer, compress tightly in the seal receptacle in proper order. Through set up twice V -arrangement sealing washer at the mill feed inlet, can improve sealed effect, prevent that the feed inlet from leaking, improves site environment.

Description

For the sealing device of overflowball mill charging aperture

Technical field

The utility model relates to the ball mill that ore grinding is used, specifically a kind of sealing device for overflowball mill charging aperture.

Background technology

The general felt seal that adopts of overflowball mill charging aperture sealing, is fixed on wool felt on charging short tube by two semicircle clips. The end face seal of charging short tube is with the equidirectional rotation of mill body, and this type of is sealed and installed with certain requirement, and the gap size between mill body charging aperture and charging short tube outer wall will be controlled 3mm left and right. Along with increase running time, constantly wearing and tearing make gap size become large, affect sealing effectiveness, can cause charging aperture all can occur leaking ore pulp phenomenon, cause site environment poor, in the time that leakage phenomenon is serious, need to stop and change charging short tube, thereby affect grinding machine driving rate.

Summary of the invention

The purpose of this utility model is for the deficiencies in the prior art, and a kind of sealing device for overflowball mill charging aperture is provided, and can improve the sealing property of mill feeding mouth, improves the driving rate of ball mill.

For achieving the above object, the utility model has adopted following technical scheme: comprise supported flange, the first v-ring, the second v-ring, gland and seal receptacle, in seal receptacle, there is the ring-type inner chamber for v-ring is installed, supported flange, the second v-ring, gland, the first v-ring and seal receptacle are sleeved on successively on the charging short tube of mill feeding, supported flange and seal receptacle are fixed on mill feeding mouth, first, the contact-making surface of the second v-ring and charging short tube forms sealing surface, the second v-ring, gland and the first v-ring are successively in the ring-type inner chamber of embedding sealing seat, seal receptacle bottom wall of inner cavity forms the supporting seat to the second v-ring, gland rear end forms the pressure ring that the second v-ring outer ring part is compressed, gland front end has the supporting seat for supportting the first v-ring, on supported flange sidewall, there is the pressure ring that the first v-ring outer ring part is compressed.

Further, the internal chamber wall of seal receptacle and gland relevant position have locating hole.

The beneficial effects of the utility model are: by twice v-ring being set at mill feeding mouth, can utilize flexible seal lip to compensate tolerance, straight line error or angular deviation, the gap size expansion of eliminating between mill body charging aperture and charging short tube outer wall brings adverse effect, can improve sealing effectiveness, prevent that charging aperture from leaking, and improves site environment. Because the gap between mill body charging aperture and charging short tube outer wall can suitably expand, therefore, precision of equipment installation is less demanding, only need change V-shaped seal ring in the time of V-shaped seal ring serious wear, needn't change charging short tube, can be cost-saving.

Brief description of the drawings

Fig. 1 is the utility model structural representation.

In figure, the implication of label symbol is as follows:

1-grinding machine

2-charging short tube

3-seal receptacle 31-internal chamber wall 32-locating hole 33-inner chamber

4-abaculus

5-the second v-ring

6-gland 61-supporting seat 62-pressure ring 63-locating hole

7-the first v-ring

8-supported flange 81-pressure ring

Detailed description of the invention

Below in conjunction with accompanying drawing, the technical scheme in the utility model embodiment is clearly and completely described.

As shown in Figure 1, the utility model comprises supported flange 8, the first v-ring 7, the second v-ring 5, gland 6 and seal receptacle 3. in seal receptacle 3, there is the ring-type inner chamber 33 for v-ring is installed, supported flange 8, the second v-ring 7, gland 6, the first v-ring 5 and seal receptacle 3 are sleeved on successively on the charging short tube 2 of mill feeding, supported flange 8 and seal receptacle 3 are fixed on grinding machine 1 charging aperture, first, the second v-ring 5, 7 form sealing surface with the circumference contact-making surface of charging short tube 2, the second v-ring 5, gland 6 and the first v-ring 7 are successively in the ring-type inner chamber 33 of embedding sealing seat 3, seal receptacle 3 bottom wall of inner cavities form the supporting seat to the second v-ring 5, gland 6 rear ends form the pressure ring 62 that the second v-ring outer ring is compressed, gland 6 front ends have the supporting seat 61 for supportting the first v-ring 7, on supported flange 8 sidewalls, there is the pressure ring 81 that the first v-ring 7 outer ring parts are compressed.

In figure, a is the gap between mill body 1 charging aperture and charging short tube 2 outer walls.

In the time that supported flange 8 and seal receptacle 3 are fixed on grinding machine 1 charging aperture, supported flange 8 and gland 6 are pressed on first, second v-ring 7,5 in seal receptacle 3 respectively successively.

For convenience of processing, seal receptacle 3 bottom wall of inner cavities are movable abaculus 4 corresponding to the supporting seat of the second v-ring 5 sloping portions.

For preventing that gland 6 from rotating, the internal chamber wall 33 of seal receptacle 3 and the correspondence position of gland 6 have locating hole 32,63, gland 6 radially can be fixed on seal receptacle 3 with pin by locating hole 32,63.

Claims

1. for the sealing device of overflowball mill charging aperture, it is characterized in that: comprise supported flange (8), the first v-ring (7), the second v-ring (5), gland (6) and seal receptacle (3), in seal receptacle (3), there is the ring-type inner chamber (33) for v-ring is installed, supported flange (8), the second v-ring (7), gland (6), the first v-ring (5) and seal receptacle (3) are sleeved on successively on the charging short tube (2) of mill feeding, supported flange (8) and seal receptacle (3) are fixed on grinding machine (1) charging aperture, first, the second v-ring (7, 5) form sealing surface with the contact-making surface of charging short tube (2), the second v-ring (5), gland (6) and the first v-ring (7) are successively in the ring-type inner chamber (33) of embedding sealing seat, seal receptacle (3) bottom wall of inner cavity forms the supporting seat to the second v-ring (5), gland (6) rear end forms the pressure ring (62) that the second v-ring (5) outer ring part is compressed, gland (6) front end has the supporting seat (61) for supportting the first v-ring (7), on supported flange (8) sidewall, there is the pressure ring (81) that the first v-ring (7) outer ring part is compressed.

2. the sealing device for overflowball mill charging aperture according to claim 1, is characterized in that: the internal chamber wall (31) of seal receptacle and gland (6) relevant position have locating hole (32,63).