CN210801982U

CN210801982U - Sealing structure for fish scale of kiln head and kiln tail cover

Info

Publication number: CN210801982U
Application number: CN201921057128.6U
Authority: CN
Inventors: 徐书华; 张佳; 刘向方; 俞基焱; 何焱荣
Original assignee: Hubei Zhenhua Chemical Co ltd
Current assignee: Hubei Zhenhua Chemical Co ltd
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-06-19
Anticipated expiration: 2029-07-08

Abstract

The utility model discloses a kiln head kiln tail cover fish scale seal structure, including rotary kiln and kiln head kiln tail cover, kiln head kiln tail cover installs at the rotary kiln both ends, interior fish scale seat is installed to kiln head kiln tail cover one side, interior fish scale seat one side lower part slope is installed, outer fish scale seat is installed on interior fish scale seat one side upper portion, outer fish scale is installed in the slope of outer fish scale seat one side lower part, the one end and the rotary kiln outside sliding connection of outer fish scale, outer fish scale seat and interior fish scale, interior cavity has been seted up in the fish scale seat, the utility model discloses change into double-deck fish scale device, first layer fish scale prevents the hourglass material, and the ash leakage is prevented to the second time fish scale, through the negative pressure, collects the dust between first layer and the second floor fish scale, reaches the effect of not leaking the ash.

Description

Sealing structure for fish scale of kiln head and kiln tail cover

Technical Field

The utility model relates to a rotary kiln seals technical field, specifically is a kiln hood tail cover fish scale seal structure.

Background

The rotary kiln is a rotary calcining kiln (commonly called rotary kiln) and belongs to building material equipment. Rotary kilns can be divided into cement kilns, metallurgical chemical kilns and lime kilns according to the different materials to be treated. The cement kiln is mainly used for calcining cement clinker and comprises a dry-process cement kiln and a wet-process cement kiln. The metallurgical chemical kiln is mainly used for magnetizing and roasting lean iron ore in steel plants in the metallurgical industry; oxidizing and roasting chromium and nickel iron ores; the refractory material factory roasts bauxite and the aluminium factory roasts clinker and aluminium hydroxide. The rotary kiln seal is used as accessory equipment of a rotary kiln, a single-cylinder cooler and a dryer, and is widely applied to industries such as cement, building materials, metallurgy, mines, petroleum, chemical engineering and the like. Mainly plays a role in sealing the gaps of the inlet and the outlet of the rotary kiln, the single-cylinder cooler and the dryer and preventing the phenomena of air leakage, air inlet, air leakage and the like.

The sealing structure of the existing rotary kiln has poor sealing effect and poor sealing performance of the original kiln head and kiln tail, in order to meet the temperature requirement of the kiln head and kiln tail, the energy consumption of a kiln tail draught fan 110KW is increased, the chromium green kiln head and kiln tail leak materials, the product conversion rate of chromic anhydride is reduced, the dust recovered by fish scales is burnt back, the gas loss is increased, the inner layer fish scales are rubbed with a barrel, and after the fish scales are deformed, the dust is easily leaked, and the dust absorption and dust removal treatment cannot be carried out.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a kiln head kiln tail cover flake seal structure to it is poor to solve among the prior art head kiln tail leakproofness, rubs with the barrel between the inlayer flake, and the flake warp the back, leaks the ash easily, can not carry out the problem that the dust absorption deashing was handled.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a kiln head kiln tail cover fish scale seal structure, includes rotary kiln and kiln head kiln tail cover, kiln head kiln tail cover installs at the rotary kiln both ends, fish scale seat in kiln head kiln tail cover one side is installed, interior fish scale seat one side lower part slope is installed interior fish scale, interior fish scale seat one side upper portion is installed outer fish scale seat, outer fish scale is installed in outer fish scale seat one side lower part slope, the one end and the rotary kiln outside sliding connection of outer fish scale, outer fish scale seat and interior fish scale, the inner cavity has been seted up in the fish scale seat, and the inner cavity upside passes through the exhaust duct and is connected with the dust remover, install the fan on the exhaust duct, rotary kiln both ends outside cover is equipped with wear-resisting friction ring.

Furthermore, a plurality of the outer fish scales and the inner fish scales are arranged in an end-to-end overlapping and surrounding mode.

Furthermore, one end of the outer fish scale is pressed outside the rotary kiln through an outer steel wire rope.

Furthermore, one end of the inner fish scale is pressed outside the rotary kiln through an inner steel wire rope.

Furthermore, the longitudinal section of the outer fish scale seat is arranged to be in an inclined L shape, and the longitudinal section of the inner fish scale seat is arranged to be in an inclined T shape.

Furthermore, one end of the inner fish scale seat is welded with the kiln hood tail cover, and one end of the outer fish scale seat is welded with one side of the inner fish scale seat.

Furthermore, the outer fish scale seat and the inner fish scale seat are both arranged in a ring shape.

Furthermore, two air exhaust pipelines are arranged on the outer fish scale seat and distributed in the upper direction and the lower direction.

Furthermore, the outer fish scale and the inner fish scale are of alloy structures and are wrapped with protective paint.

Furthermore, the outer fish scale and the inner fish scale are obliquely and parallelly arranged.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the device is changed into a double-layer fish scale device, the first layer of fish scale prevents material leakage, the second layer of fish scale prevents ash leakage, and dust between the first layer of fish scale and the second layer of fish scale is collected through negative pressure, so that the effects of ash leakage and material leakage are achieved.

2. And wear-resisting friction rings are sleeved on the outer sides of the two ends of the rotary kiln, so that the wear resistance of the outer side of the rotary kiln is improved, and the fish scales are rubbed with the barrel body, so that the fish scales are not easy to deform and leak ash, and the sealing effect is further improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure and the longitudinal structure of the fish scale of the present invention.

In the figure: 1. a rotary kiln; 2. a wear-resistant friction ring; 3. external fish scales; 4. an outer fish scale seat; 5. an inner cavity; 6. inner fish scales; 7. an inner fish scale seat; 8. an air extraction pipeline; 9. a fan; 10. a dust remover; 11. a kiln hood; 12. an inner wire rope; 13. an outer wire rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, in an embodiment of the present invention, a sealing structure for end-to-end kiln hood fish scales comprises a rotary kiln 1 and an end-to-end kiln hood 11, wherein the end-to-end kiln hood 11 is installed at two ends of the rotary kiln 1, an inner fish scale seat 7 is installed at one side of the end-to-end kiln hood 11, an inner fish scale 6 is installed at a lower portion of one side of the inner fish scale seat 7 in an inclined manner, the inner fish scale 6 prevents material leakage, an outer fish scale seat 4 is installed at an upper portion of one side of the inner fish scale seat 7, an outer fish scale 3 is installed at a lower portion of one side of the outer fish scale seat 4 in an inclined manner, the outer fish scale 3 prevents ash leakage, one end of the outer fish scale 3, the outer fish scale seat 4 and the inner fish scale 6 is slidably connected with an outer side of the rotary kiln 1, an inner cavity 5 is formed in the outer fish scale seat 4, an upper side of the inner cavity 5 is connected with a dust, the outer sides of two ends of the rotary kiln 1 are sleeved with the wear-resistant friction rings 2, and the wear-resistant performance of the outer side of the rotary kiln 1 is improved by adopting a cast iron material, so that fish scales are rubbed with the barrel body, the fish scales are not easy to deform and leak ash, and the sealing effect is further improved.

Preferably, a plurality of the outer fish scales 3 and the inner fish scales 6 are arranged in a stacked and surrounding mode from head to tail, so that sealing treatment can be conveniently carried out on the outer side of the joint of the rotary kiln 1 and the kiln head and tail cover 11.

Preferably, one end of the outer fish scale 3 is pressed outside the rotary kiln 1 through an outer steel wire rope 13 and a heavy hammer, so that the outer side of the joint of the rotary kiln 1 and the kiln head and tail cover 11 is conveniently sealed.

Preferably, one end of the inner fish scale 6 is pressed outside the rotary kiln 1 through an inner steel wire rope 12 and a heavy hammer, so that the outer side of the joint of the rotary kiln 1 and the kiln head and tail cover 11 is conveniently sealed.

Preferably, the longitudinal section of the outer fish scale seat 4 is arranged to be in an inclined L shape, and the longitudinal section of the inner fish scale seat 7 is arranged to be in an inclined T shape, so that the structural stability is high, and the stability of connection and fixation is improved.

Preferably, one end of the inner fish scale seat 7 is welded with the kiln head and kiln tail cover 11, and one end of the outer fish scale seat 4 is welded with one side of the inner fish scale seat 7, so that the stability of the connecting structure is improved.

Preferably, the outer and

inner fin seats

4, 7 are both arranged in a ring shape, which can form a ring seal.

Preferably, the two air exhaust pipelines 8 are arranged on the outer fish scale seat 4 and distributed in the upper direction and the lower direction, so that the dust removal effect is better.

Preferably, the outer fish scales 3 and the inner fish scales 6 are of alloy structures and are wrapped with protective paint, so that the corrosion resistance of the outer fish scales 3 and the inner fish scales 6 is improved.

Preferably, the outer fish scales 3 and the inner fish scales 6 are obliquely and parallelly arranged, so that double-layer sealing is facilitated.

The utility model discloses a theory of operation and use flow: change double-deck fish scale setting into, interior fish scale 6 prevents to leak the material, outer fish scale 3 prevents to leak the ash, and carry out the negative pressure dust absorption through fan 9, dust remover 10 and exhaust duct 8, collect the dust between inner layer fish scale 6 and the outer fish scale 3, reach the effect that does not leak the ash and leak the material, it is equipped with wear-resisting friction ring 2 to overlap through rotary kiln 1 both ends outside, increase rotary kiln 1 outside wear resistance, make fish scale and barrel friction, fish scale non-deformable, also difficult ash leakage, sealed effect has further been increased.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a kiln head kiln tail cover fish scale seal structure, includes rotary kiln (1) and kiln head kiln tail cover (11), its characterized in that: the kiln head and kiln tail cover (11) is arranged at two ends of the rotary kiln (1), one side of the kiln head and kiln tail cover (11) is provided with an inner fish scale seat (7), the lower part of one side of the inner fish scale seat (7) is obliquely provided with an inner fish scale (6), an outer fish scale seat (4) is arranged at the upper part of one side of the inner fish scale seat (7), outer fish scales (3) are obliquely arranged at the lower part of one side of the outer fish scale seat (4), one end of the outer fish scale (3), one end of the outer fish scale seat (4) and one end of the inner fish scale (6) are connected with the outer side of the rotary kiln (1) in a sliding way, an inner cavity (5) is arranged in the outer fish scale seat (4), the upper side of the inner cavity (5) is connected with a dust remover (10) through an air exhaust pipeline (8), the air exhaust pipeline (8) is provided with a fan (9), and the outer sides of the two ends of the rotary kiln (1) are sleeved with wear-resistant friction rings (2).

2. The sealing structure for the fish scales of the kiln head and the kiln tail cover of claim 1 is characterized in that: a plurality of the outer fish scales (3) and the inner fish scales (6) are arranged in a head-to-tail overlapping and surrounding way.

3. The sealing structure for the fish scales of the kiln head and the kiln tail cover of claim 1 is characterized in that: one end of the outer fish scale (3) is pressed outside the rotary kiln (1) through an outer steel wire rope (13) and a heavy hammer.

4. The sealing structure for the fish scales of the kiln head and the kiln tail cover of claim 1 is characterized in that: one end of the inner fish scale (6) is pressed outside the rotary kiln (1) through an inner steel wire rope (12) and a heavy hammer.

5. The sealing structure for the fish scales of the kiln head and the kiln tail cover of claim 1 is characterized in that: the longitudinal section of the outer fish scale seat (4) is arranged to be in an inclined L shape, and the longitudinal section of the inner fish scale seat (7) is arranged to be in an inclined T shape.

6. The sealing structure for the fish scales of the kiln head and the kiln tail cover of claim 1 is characterized in that: one end of the inner fish scale seat (7) is welded with the kiln head and kiln tail cover (11), and one end of the outer fish scale seat (4) is welded with one side of the inner fish scale seat (7).

7. The sealing structure for the fish scales of the kiln head and the kiln tail cover of claim 1 is characterized in that: the outer fish scale seat (4) and the inner fish scale seat (7) are both arranged in a ring shape.

8. The sealing structure for the fish scales of the kiln head and the kiln tail cover of claim 1 is characterized in that: two air exhaust pipelines (8) are arranged on the outer fish scale seat (4) and are distributed in the upper direction and the lower direction.

9. The sealing structure for the fish scales of the kiln head and the kiln tail cover of claim 1 is characterized in that: the outer fish scale (3) and the inner fish scale (6) are of alloy structures and are wrapped with protective paint.

10. The sealing structure for the fish scales of the kiln head and the kiln tail cover of claim 1 is characterized in that: the outer fish scale (3) and the inner fish scale (6) are obliquely and parallelly arranged.