A mechanical sealing structure for the outer gap of a feed pipe of a horizontal screw centrifuge

Abstract

The utility model discloses a mechanical sealing structure for the outer gap of a feed pipe of a horizontal screw centrifuge, which relates to the technical field of centrifuges. It includes a set screw, a spring seat, a spring, a static ring, a dynamic ring and a seal. The spring seat is fixed on the feed pipe by a set screw, the spring is arranged between the spring seat and the static ring, the static ring cooperates with the feed pipe through a seal, the outer side of the static ring cooperates with the dynamic ring arranged on the feed pipe, and the dynamic ring cooperates with the flange end. The utility model solves the gap problem between the feed pipe and the flange end, blocks the gap, and serves as a dynamic and static transfer accessory, with good use effect and strong practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a mechanical sealing structure for the outer gap of a feed pipe of a horizontal screw centrifuge. Background Art

[0002] When the horizontal centrifuge is running, the feed pipe is in a stationary state and the flange end is in a rotating state. Therefore, there is a gap between the feed pipe and the flange end for a long time, which will cause the risk of material leakage. At present, conventional mechanical seals on the market cannot meet this demand of centrifuges. Most centrifuges on the market have leakage risks, which cannot be solved by structure. In order to solve the problem of the short gap between the feed pipe and the flange, the utility model designs a mechanical sealing structure for the outer gap of the feed pipe of the horizontal screw centrifuge. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a mechanical sealing structure for the outer gap of the feed pipe of a horizontal screw centrifuge, which solves the gap problem between the feed pipe and the flange end, blocks the gap and serves as a dynamic and static transfer accessory with good use effect and strong practicality.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a mechanical sealing structure for the outer gap of a feed pipe of a horizontal screw centrifuge, comprising a set screw, a spring seat, a spring, a static ring, a dynamic ring and a seal, the spring seat is fixed to the feed pipe by a set screw, the spring is arranged between the spring seat and the static ring, the static ring cooperates with the feed pipe through the seal, the outer side of the static ring cooperates with the dynamic ring arranged on the feed pipe, and the dynamic ring cooperates with the flange end.

[0005] Preferably, the moving ring is a graphite moving ring.

[0006] Preferably, the movable ring is rotatably matched with the flange end.

[0007] Preferably, the stationary ring supports the dynamic ring.

[0008] The beneficial effects of the utility model are as follows: the structural design of the utility model is reasonable, the entire sealing structure is fixed to the feed pipe by means of set screws, the moving ring is made of graphite material, and plays a sealing role when rotating with the flange end, the spring has the function of compensating for the wear of the moving ring, and the static ring plays the role of supporting the moving ring. The entire sealing structure effectively solves the gap problem between the feed pipe and the flange end, blocks the gap, and at the same time serves as a dynamic and static transfer accessory, with good use effect and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is described in detail below with reference to the accompanying drawings and specific implementation methods;

[0010] Figure 1It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0011] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0012] Reference Figure 1 The present specific implementation adopts the following technical scheme: a mechanical sealing structure for the outer gap of a feed pipe of a horizontal screw centrifuge, comprising a set screw 2, a spring seat 3, a spring 4, a stationary ring 5, a dynamic ring 6 and a seal 7, wherein the spring seat 3 is fixed to the feed pipe 1 by the set screw 2, the spring 4 is arranged between the spring seat 3 and the stationary ring 5, the stationary ring 5 cooperates with the feed pipe 1 through the seal 7, the outer side of the stationary ring 5 cooperates with the dynamic ring 6 arranged on the feed pipe 1, and the dynamic ring 6 cooperates with the flange end 8.

[0013] It is worth noting that the moving ring 6 is a graphite moving ring.

[0014] It is worth noting that the moving ring 6 and the flange end 8 are rotatably matched.

[0015] In addition, the stationary ring 5 supports the dynamic ring 6 .

[0016] The feed pipe of this specific embodiment is used to transport the medium, the set screw is used to lock the entire sealing structure, the flange end rotates with the dynamic ring, and the dynamic ring is supported by the static ring. Since a seal is provided at the joint between the static ring and the feed pipe, a sealing effect is achieved here, and the material will not leak. At the same time, the spring has the function of compensating for the wear of the dynamic ring, which greatly extends the service life of the entire sealing structure.

[0017] This specific implementation effectively solves the gap problem between the feed pipe and the flange end, blocks the gap, and at the same time serves as a dynamic and static transfer accessory with good use effect and strong practicality.

[0018] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A mechanical sealing structure for the outer gap of a feed pipe of a horizontal screw centrifuge, characterized in that: The invention comprises a set screw (2), a spring seat (3), a spring (4), a stationary ring (5), a dynamic ring (6) and a sealing member (7); the spring seat (3) is fixed on a feed pipe (1) by means of a set screw (2); the spring (4) is arranged between the spring seat (3) and the stationary ring (5); the stationary ring (5) cooperates with the feed pipe (1) through the sealing member (7); the outer side of the stationary ring (5) cooperates with a dynamic ring (6) arranged on the feed pipe (1); and the dynamic ring (6) cooperates with a flange end (8).

2. A mechanical sealing structure for the outer gap of a feed pipe of a horizontal screw centrifuge according to claim 1, characterized in that: The moving ring (6) is a graphite moving ring.

3. A mechanical sealing structure for the outer gap of a feed pipe of a horizontal screw centrifuge according to claim 1, characterized in that: The moving ring (6) is rotatably matched with the flange end (8).

4. A mechanical sealing structure for the outer gap of a feed pipe of a horizontal screw centrifuge according to claim 1, characterized in that: The stationary ring (5) supports the dynamic ring (6).

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