CN114754576A

CN114754576A - Rotary kiln sealing structure

Info

Publication number: CN114754576A
Application number: CN202210545132.7A
Authority: CN
Inventors: 宋科杰; 徐怀锦; 张征
Original assignee: Sinoma International Engineering Co ltd
Current assignee: Sinoma International Engineering Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-07-15
Anticipated expiration: 2042-05-19
Also published as: CN114754576B

Abstract

The invention discloses a rotary kiln sealing structure which comprises an upper lamination group and a lower lamination group, wherein the upper lamination group and the lower lamination group are formed by a plurality of multiple cross-laminated laminations. Because the lamination is overlapped in a multiple crossing way, the sealing performance is better, and the edge warping deformation is not easy to occur. The invention can be used for replacing various fish scale type or improved sealing structures.

Description

Rotary kiln sealing structure

Technical Field

The invention relates to a sealing structure, in particular to a rotary kiln sealing structure.

Background

The tail end of the rotary kiln head and the joint of the housing are required to be provided with a sealing structure, so that cold air is prevented from entering the rotary kiln on one hand, and the material is prevented from leaking to pollute the environment on the other hand. The traditional rotary kiln sealing structure is in a fish scale type, and patents such as CN110057191A, CN203731847U, CN206832028U, CN216308576U and CN216347734U are all in the fish scale type sealing structure. The sealing structure is formed by sequentially pressing and stacking the strip-shaped steel sheets along the circumferential direction of the rotary kiln, and has the following problems: (1) the sealing is not tight enough; (2) after a period of use, part of the fish scales can be deformed and warped, and local leakage is caused. In recent years, some improved sealing structures try to solve the problems, but other mechanisms are additionally arranged on the basis of the fish scale type sealing structure, so that the defects of the fish scale type sealing structure cannot be fundamentally overcome, and the problems of cost rise, trouble in maintenance and the like are also caused.

Disclosure of Invention

The invention aims to: the invention aims to provide a rotary kiln sealing structure which is good in sealing effect and can prevent edge warping deformation.

The technical scheme is as follows: the rotary kiln sealing structure comprises an upper lamination set and a lower lamination set, wherein a sealing felt is arranged between the upper lamination set and the lower lamination set, and the upper lamination set and the lower lamination set are formed by a plurality of laminations which are stacked in a multi-layer and crossed mode.

In the invention, the laminations are multiply and crossly laminated, the sealing performance is good, the deformation resistance is strong, and the edges are not easy to warp.

Further, the first long edge of the lamination is provided with a first concave part and a second convex part; the second long edge of the lamination is provided with a first convex part corresponding to the first concave part and a second concave part corresponding to the second convex part; the laminations overlap doubly.

Optionally, the first long side of the lamination is provided with a first concave part, a second convex part and a third concave part in sequence; the second long edge of the lamination is provided with a first convex part corresponding to the first concave part, a second concave part corresponding to the second convex part and a third convex part corresponding to the third concave part; the laminations overlap each other by three.

Optionally, the first long side of the lamination is provided with a first concave part, a second convex part, a third concave part and a fourth convex part in sequence; the second long edge of the lamination is provided with a first convex part corresponding to the first concave part, a second concave part corresponding to the second convex part, a third convex part corresponding to the third concave part and a fourth concave part corresponding to the fourth convex part; the laminations overlap quadruply.

Furthermore, the lamination set is tightened by a steel wire rope hung with a heavy hammer.

Has the beneficial effects that: compared with the prior art, the invention has the following remarkable advantages: the sealing performance is good, the edge warping deformation can be prevented, and the sealing structure can be used for replacing various fish scale type or improved sealing structures.

Drawings

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

figure 2 is a schematic structural view of a lamination stack;

FIG. 3 is a schematic view of a fitting structure between laminations in the first embodiment;

FIG. 4 is a schematic view showing a fitting structure between laminations in the second embodiment;

fig. 5 is a schematic view of the fitting structure between the laminations in the third embodiment.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

EXAMPLE one (simple type)

As shown in fig. 1 to 3, the rotary kiln sealing structure comprises a lamination stack 1, a cone barrel 2 and a sealing sleeve 3, wherein one end of the lamination stack 1 is installed on the cone barrel 2, and the other end of the lamination stack is pressed on the sealing sleeve 3. Specifically, the lamination stack 1 comprises an upper lamination stack 6 and a lower lamination stack 7, a sealing felt 5 is arranged between the upper lamination stack and the lower lamination stack, and the lower lamination stack 7, the sealing felt 5 and the upper lamination stack 6 are sequentially pressed on the conical cylinder 2 and fixed by a screw 8. The upper and

lower stack

6, 7 of laminations is formed by a combination of several laminations 9, the first long side of the laminations 9 being provided with a first recess 9a and a second protrusion 9 c. The second long side of the laminate 9 is provided with a first protrusion 9b corresponding to the first recess 9a and a second recess 9d corresponding to the second protrusion 9 c. The laminations 9 overlap one another. In addition, the lamination stack is tightened by a wire rope 4 with a weight hanging thereon.

EXAMPLE two (Standard)

The difference between this second embodiment and the first embodiment is that the structure of the laminate 9 is different. In the second embodiment, the first long side of the lamination 9 is provided with a first recess 9a, a second projection 9c and a third recess 9e in this order. The second long side of the laminate 9 is provided with a first protrusion 9b corresponding to the first recess 9a, a second recess 9d corresponding to the second protrusion 9c, and a third protrusion 9f corresponding to the third recess 9 e. The laminations 9 overlap each other by three.

EXAMPLE III (enhanced type)

The third embodiment differs from the first and second embodiments in that the structure of the laminations 9 is different. In the third embodiment, the first long side of the lamination 9 is provided with a first concave portion 9a, a second convex portion 9c, a third concave portion 9e and a fourth convex portion 9g in this order. The lamination 9 is provided on the second long side with a first protrusion 9b corresponding to the first recess 9a, a second recess 9d corresponding to the second protrusion 9c, a third protrusion 9f corresponding to the third recess 9e, and a fourth recess 9h corresponding to the fourth protrusion 9 g. The laminations 9 overlap quadruply.

The first to third embodiments have the advantages that the sealing effect is from weak to strong, and the sealing device is suitable for different working conditions and requirements.

While the embodiments one to three have shown double, triple and quadruple overlapping solutions, it should be understood that, based on the principles of the present invention, further multiple cross-laminated sealing structures may be developed and are intended to be included within the scope of the present invention as claimed.

Claims

1. The utility model provides a rotary kiln seal structure, includes upper lamination group (6) and lower lamination group (7), sets up sealed felt (5), its characterized in that between upper and lower lamination group: the upper lamination set (6) and the lower lamination set (7) are composed of a plurality of multiple cross-laminated laminations (9).

2. The rotary kiln sealing structure according to claim 1, characterized in that: the first long side of the lamination (9) is provided with a first concave part (9a) and a second convex part (9 c); the second long side of the lamination (9) is provided with a first convex part (9b) corresponding to the first concave part (9a) and a second concave part (9d) corresponding to the second convex part (9 c); the laminations (9) overlap one another.

3. The rotary kiln sealing structure according to claim 1, characterized in that: the first long side of the lamination (9) is provided with a first concave part (9a), a second convex part (9c) and a third concave part (9e) in sequence; the second long side of the lamination (9) is provided with a first convex part (9b) corresponding to the first concave part (9a), a second concave part (9d) corresponding to the second convex part (9c) and a third convex part (9f) corresponding to the third concave part (9 e); the laminations (9) are overlapped in a triple manner.

4. The rotary kiln seal structure according to claim 1, characterized in that: the first long side of the lamination (9) is provided with a first concave part (9a), a second convex part (9c), a third concave part (9e) and a fourth convex part (9g) in sequence; the second long side of the lamination (9) is provided with a first convex part (9b) corresponding to the first concave part (9a), a second concave part (9d) corresponding to the second convex part (9c), a third convex part (9f) corresponding to the third concave part (9e) and a fourth concave part (9h) corresponding to the fourth convex part (9 g); the laminations (9) overlap quadruply.

5. The rotary kiln seal structure according to any one of claims 1 to 4, characterized in that: the lamination set is tightened by a steel wire rope (4) hung with a heavy hammer.