CN214120733U

CN214120733U - Novel cement kiln head and tail sealing device

Info

Publication number: CN214120733U
Application number: CN202023119639.1U
Authority: CN
Inventors: 徐宏彬; 孙伟; 赵军; 任万吉
Original assignee: Jilin Yatai Cement Co ltd
Current assignee: Jilin Yatai Cement Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-09-03
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a novel cement kiln head and kiln tail sealing device, which comprises a rotary cylinder body, a cold air sleeve at the periphery of the rotary cylinder body, a first inner cylinder and a second inner cylinder are respectively arranged at the periphery of the cold air sleeve at the kiln head and the kiln tail, an adjusting sleeve and a shunt sleeve are respectively arranged between the first inner cylinder and the rotary cylinder body, a friction plate, a sealing plate and a pressing plate are sequentially arranged above the adjusting sleeve and the shunt sleeve from bottom to top, a sealing reflection sleeve is arranged between the inner cylinder and the friction plate, the lower end of the adjusting sleeve is connected with a left vertical plate and a right vertical plate which are the same, a connecting block is arranged between the two vertical plates, the sealing device at the kiln head and the kiln tail of the cement kiln realizes the sealing function by arranging the sealing reflection sleeve and matching with the friction plate, the sealing plate and the pressing plate, and the sealing reflection sleeve are made of high temperature resistant composite material, and a weight is matched with the weight to press the sealing device, so that the sealing performance of the whole device is better.

Description

Novel cement kiln head and tail sealing device

Technical Field

The utility model relates to a cement manufacture equipment technical field specifically is a novel cement kiln head kiln tail sealing device.

Background

The rotary kiln is a rotary calcining kiln, belongs to the field of building material equipment, and can be divided into a cement kiln, a metallurgical chemical kiln and a lime kiln according to different treatment materials, wherein the cement kiln is mainly used for calcining cement clinker and is divided into a dry method production cement kiln and a wet method production cement kiln, the rotary kiln is widely used for carrying out mechanical, physical or chemical treatment on solid materials in a plurality of production industries such as building materials, metallurgy, chemical industry, environmental protection and the like, and currently, a sealing structure of a cement kiln head only has an outer side forward sealing gasket group. And the air pressure in the cement kiln is unstable, when the air pressure in the kiln is higher than the external air pressure, hot air in the kiln can be discharged from the edge of the kiln, materials enter the gap of the sealing sheet along with the hot air, the sealing effect is poor, the service life is shortened, and field ash leakage is caused. The sealing device for the cement kiln is necessary to be designed in combination with the working environment of the cement kiln.

Chinese patent (publication No. CN 105627738A, bulletin date: 20186.06.01) discloses a rotary cement kiln tail sealing device, which adopts a method of combining a movable sealing ring and a fixed sealing ring to realize a sealing function, and has the advantages of simple structure, low use cost and the like, however, the movable sealing ring of the sealing device has poor adjustability and is difficult to meet requirements, and the sealing mode realized only through the sealing ring is too single, so that high-pressure waste gas cannot be effectively blocked, the sealing performance of the whole device is poor, and the practicability is low.

Disclosure of Invention

An object of the utility model is to provide a novel cement kiln head kiln tail sealing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a novel cement kiln head and kiln tail sealing device comprises a rotary cylinder body, wherein the rotary cylinder body is provided with a cold air sleeve at the periphery of a kiln head part and a kiln tail part, the periphery of the cold air sleeve at the kiln head part and the periphery of the cold air sleeve at the kiln tail part are respectively provided with a first inner cylinder and a second inner cylinder, an adjusting sleeve is arranged between the first inner cylinder and the rotary cylinder body, a shunting sleeve is arranged between the second inner cylinder and the rotary cylinder body, a friction plate, a sealing plate and a pressing plate are sequentially arranged above the adjusting sleeve and the shunting sleeve from bottom to top, the friction plate, the sealing plate and the pressing plate are respectively composed of an inclined plate part and a flat plate part and are mutually overlapped, a sealed reflection sleeve is arranged between the first inner cylinder and the friction plate, the upper end and the lower end of the sealed reflection sleeve are respectively tightly attached to the lower end of the pressing plate and the upper end of the first inner cylinder, the friction plate, the sealing plate and, the lower extreme fixedly connected with square fixture block of kiln head department friction plate, it has square groove to open with the position that square fixture block corresponds to adjust the cover upper end, adjust the cover lower extreme and be connected with about two the same risers, be equipped with the connecting block between two risers, the connecting block passes through the supporting shoe to be fixed on rotatory barrel, and it has the screw hole to open on the left side riser plate wall, and threaded hole is equipped with adjusting bolt, the flat plate part upper end of clamp plate is equipped with wire rope, the wire rope lower extreme is connected with the weight.

As a further aspect of the present invention: the adjusting sleeve is arranged between the first inner cylinder and the cold air sleeve, the flow dividing sleeve is arranged between the cold air sleeve and the rotary cylinder, and the right end of the flow dividing sleeve is fixedly connected with the kiln tail smoke chamber.

As a further aspect of the present invention: a plurality of wave-shaped supporting plates are arranged between the rotary cylinder body and the cold air sleeve, and the wave-shaped supporting plates are symmetrically and uniformly distributed along the circumference of the central axis in the rotary cylinder body.

As a further aspect of the present invention: the left end of the adjusting sleeve is connected with the right end of the kiln head cold air sleeve and the kiln tail cold air sleeve are connected with the rotary cylinder through flanges, and the flange at the kiln tail is arranged between the wave-shaped supporting plate and the shunting sleeve.

As a further aspect of the present invention: the fixing bolts and the fixing nuts at the kiln head and the kiln tail are both two.

As a further aspect of the present invention: the upper end of the flat plate part of the pressing plate is fixedly connected with a left limiting clamping block and a right limiting clamping block which are the same, and a semicircular groove is formed between the two limiting clamping blocks.

As a further aspect of the present invention: the diameter size of the semicircular groove is consistent with that of the steel wire rope.

Compared with the prior art, the beneficial effects of the utility model are that: this cement kiln head kiln tail sealing device is through setting up sealed reflection cover, and the cooperation friction plate, sealing function is realized to closing plate and clamp plate, again through adapter sleeve and reposition of redundant personnel cover, can form the labyrinth seal passageway between inner tube and rotatory barrel, when high-pressure waste gas passes through the labyrinth seal passageway, can reduce the velocity of flow, in order to reach the purpose that reduces the leakage, sealed reflection cover is made by high temperature resistant combined material, existing fender ash, also there is thermal-insulated function, come to exert pressure to sealing device at cooperation wire rope and weight, make whole sealing device's sealing performance better, the practicality is stronger.

Drawings

Fig. 1 is a kiln head sealing structure schematic diagram of a novel cement kiln head and kiln tail sealing device.

Fig. 2 is a kiln tail sealing structure schematic diagram of a novel cement kiln head and kiln tail sealing device.

Fig. 3 is a kiln tail external structure schematic diagram of a novel cement kiln head and kiln tail sealing device.

Fig. 4 is a schematic view of part a in a kiln head sealing structure schematic view of a novel cement kiln head and kiln tail sealing device.

Wherein: the kiln head comprises a rotary cylinder body-1, a cold air sleeve-2, a kiln head cover-3, a first inner cylinder-4, a kiln tail smoke chamber-5, a second inner cylinder-6, a sealed reflection sleeve-7, a friction plate-8, a sealing plate-9, a pressure plate-10, a fixing bolt-11, a fixing nut-12, a square fixture block-13, a riser-14, a connecting block-15, a supporting block-16, an adjusting bolt-17, a square groove-18, a semicircular groove-19, a limiting fixture block-20, a steel wire rope-21, a heavy hammer-22, a shunt sleeve-23, an adjusting sleeve-24, a flange-25 and a wave-shaped supporting plate-26.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

Referring to fig. 1-4, a novel sealing device for the kiln head and the kiln tail of a cement kiln comprises a rotary cylinder 1, wherein a cold air sleeve 2 is arranged on the periphery of the kiln head and the kiln tail of the rotary cylinder 1, a first inner cylinder 4 and a second inner cylinder 6 are respectively arranged on the periphery of the cold air sleeve 2 at the kiln head and the cold air sleeve 2 at the kiln tail, an adjusting sleeve 24 is arranged between the first inner cylinder 4 and the rotary cylinder 1, a shunting sleeve 23 is arranged between the second inner cylinder 6 and the rotary cylinder 1, a friction plate 8, a sealing plate 9 and a pressing plate 10 are sequentially arranged above the adjusting sleeve 24 from bottom to top, the friction plate 8, the sealing plate 9 and the pressing plate 10 are respectively composed of an inclined plate part and a flat plate part and are mutually overlapped, a sealing reflection sleeve 7 is arranged between the first inner cylinder 4 and the friction plate 8, the upper end and the lower end of the sealing reflection sleeve 7 are respectively closely attached to the lower end of the pressing plate 10 and the upper end of the first inner cylinder 4, the sealed reflection sleeve 7 is connected with the first inner cylinder 4, the friction plate 8, the sealing plate 9 and the pressing plate 10 through fixing bolts and fixing nuts 12, a square clamping block 13 is fixedly connected to the lower end of the friction plate 8 at the kiln head, a square groove 18 is formed in the position, corresponding to the square clamping block 13, of the upper end of the adjusting sleeve 24, the lower end of the adjusting sleeve 24 is connected with a left vertical plate 14 and a right vertical plate 14 which are the same, a connecting block 15 is arranged between the two vertical plates 14, the connecting block 15 is fixed on the rotary cylinder body 1 through a supporting block 16, a threaded hole is formed in the plate wall of the vertical plate 14 at the left side, an adjusting bolt 17 is arranged in the threaded hole, a steel wire rope 21 is arranged at the upper end of a flat plate portion of the pressing plate 10, and a heavy hammer 22 is connected to the lower end of the steel wire rope 21.

Specifically, the adjusting sleeve 24 is arranged between the first inner cylinder 4 and the cold air sleeve 2, the shunting sleeve 23 is arranged between the cold air sleeve 2 and the rotary cylinder body 1, and the right end of the shunting sleeve 23 is fixedly connected with the kiln tail smoke chamber 5.

Further, be equipped with a plurality of wave backup pad 26 between rotatory barrel 1 and the cold wind cover 2, wave backup pad 26 is along the inside central axis circumference symmetry evenly distributed of rotatory barrel 1.

Furthermore, the left end of the adjusting sleeve 24 is connected with the right end of the kiln head cold air sleeve 2, the kiln tail cold air sleeve 2 is connected with the rotary cylinder 1 through flanges 25, and the kiln tail flange 25 is arranged between the wave-shaped supporting plate 26 and the flow dividing sleeve 23.

In order to enhance the fixing effect between the reflecting plate and the inner cylinder and between the reflecting plate and the friction plate 8, two fixing bolts 11 and two fixing nuts 12 are arranged at the kiln head and the kiln tail.

When the kiln head and kiln tail sealing device is used, the position of the adjusting sleeve 24 is adjusted through the movable plate and the vertical plate 14, the rotation radial runout value of the adjusting sleeve 24 is required to be within an allowable range, then the adjusting bolt 17 is used for fixing, when the wave-shaped supporting plate 26 is welded, the inclination direction of the wave-shaped supporting plate 26 is required to be opposite to the rotation direction of the rotary cylinder body 1, the kiln head and the kiln tail are all sealed through the combined action of the friction plate 8, the sealing plate 9, the pressing plate 10 and the sealing reflection sleeve 7, labyrinth sealing can be formed between the inner cylinder and the rotary cylinder body 1 through the connecting sleeve and the shunting sleeve 23, the sealing effect is enhanced, the sealing reflection sleeve 7 is made of high-temperature-resistant composite materials, the sealing device is pressed through the steel wire rope 21 and the heavy hammer 22, and the whole strong sealing effect is enhanced.

Example two

Referring to fig. 1, 2 and 4, on the basis of embodiment 1, although the kiln head and the kiln tail can be well sealed, the steel wire rope 21 is arranged on the flat plate portion of the pressing plate 10 and is easy to slide and fall off, therefore, the upper end of the flat plate portion of the pressing plate 10 is fixedly connected with a left limiting fixture block 20 and a right limiting fixture block 20 which are the same, and a semicircular groove 19 is formed between the two limiting fixture blocks 20.

Specifically, the diameter of the semicircular groove 19 is consistent with the diameter of the steel wire rope 21, so that a better effect of fixing the steel wire rope 21 is achieved.

When the clamp is used, the steel wire rope 21 is placed between the two limiting clamping blocks 20, the steel wire rope 21 is clamped in the semicircular groove 19, and the steel wire rope 21 can be reversed to fall off from the pressure plate 10.

In conclusion, this cement kiln head kiln tail sealing device is through setting up sealed reflection cover 7 to cooperation friction plate 8, closing plate 9 and clamp plate 10 realize sealed function, again through adapter sleeve and reposition of redundant personnel cover 23, can form labyrinth seal passageway between inner tube and rotatory barrel 1, when high-pressure waste gas passes through labyrinth seal passageway, can reduce the velocity of flow, in order to reach the purpose that reduces the leakage, sealed reflection cover 7 is made by high temperature resistant combined material, existing fender ash, also have thermal-insulated function, exert pressure to sealing device at cooperation wire rope 21 and weight 22, make whole sealing device's sealing performance better, the practicality is stronger.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A novel cement kiln head and kiln tail sealing device comprises a rotary cylinder body (1), wherein the rotary cylinder body (1) is provided with cold air sleeves (2) at the peripheries of a kiln head part and a kiln tail part, the peripheries of the cold air sleeves (2) at the kiln head part and the kiln tail part are respectively provided with a first inner cylinder (4) and a second inner cylinder (6), the novel cement kiln head and kiln tail sealing device is characterized in that an adjusting sleeve (24) is arranged between the first inner cylinder (4) and the rotary cylinder body (1), a shunting sleeve (23) is arranged between the second inner cylinder (6) and the rotary cylinder body (1), a friction plate (8), a sealing plate (9) and a pressing plate (10) are sequentially arranged above the adjusting sleeve (24) and the shunting sleeve (23) from bottom to top, the friction plate (8), the sealing plate (9) and the pressing plate (10) are formed by an inclined plate part and a flat plate part and are mutually overlapped, and a sealing reflection sleeve (7) is arranged between the first inner cylinder (4) and the friction plate (8), the upper end and the lower end of the sealed reflection sleeve (7) are respectively closely attached to the lower end of the pressure plate (10) and the upper end of the first inner cylinder (4), the sealed reflection sleeve (7), the first inner cylinder (4), the friction plate (8), the sealing plate (9) and the pressure plate (10) are connected through a fixing bolt (11) and a fixing nut (12), the lower end of the kiln head friction plate (8) is fixedly connected with a square clamping block (13), a square groove (18) is formed in the position, corresponding to the square clamping block (13), of the upper end of the adjusting sleeve (24), the lower end of the adjusting sleeve (24) is connected with a left vertical plate (14) and a right vertical plate (14) which are the same, a connecting block (15) is arranged between the two vertical plates (14), the connecting block (15) is fixed on the rotary cylinder (1) through a supporting block (16), a threaded hole is formed in the plate wall of the vertical plate (14) on the left side, and an adjusting bolt (17) is arranged in the threaded hole, the upper end of the flat plate part of the pressing plate (10) is provided with a steel wire rope (21), and the lower end of the steel wire rope (21) is connected with a heavy hammer (22).

2. The novel sealing device for the kiln head and the kiln tail of the cement kiln as claimed in claim 1, wherein the adjusting sleeve (24) is arranged between the first inner cylinder (4) and the cold air sleeve (2), the shunting sleeve (23) is arranged between the cold air sleeve (2) and the rotary cylinder (1), and the right end of the shunting sleeve (23) is fixedly connected with the kiln tail smoke chamber (5).

3. The novel sealing device for the kiln head and the kiln tail of the cement kiln as claimed in claim 2, wherein a plurality of wave-shaped supporting plates (26) are arranged between the rotary cylinder (1) and the cold air sleeve (2), and the wave-shaped supporting plates (26) are circumferentially and uniformly distributed along the central axis in the rotary cylinder (1).

4. The novel sealing device for the kiln head and the kiln tail of the cement kiln as claimed in claim 3, wherein the left end of the adjusting sleeve (24) is connected with the right end of the cold air sleeve (2) at the kiln head, the cold air sleeve (2) at the kiln tail is connected with the rotary cylinder (1) through a flange (25), and the flange (25) at the kiln tail is arranged between the wave-shaped supporting plate (26) and the flow dividing sleeve (23).

5. The novel sealing device for the kiln head and the kiln tail of the cement kiln as claimed in claim 1, wherein the number of the fixing bolts (11) and the fixing nuts (12) at the kiln head and the kiln tail is two.

6. The novel sealing device for the kiln head and the kiln tail of the cement kiln as claimed in claim 1, wherein the upper end of the flat plate part of the pressure plate (10) is fixedly connected with a left limiting fixture block (20) and a right limiting fixture block (20) which are the same, and a semicircular groove (19) is arranged between the two limiting fixture blocks (20).

7. The novel cement kiln head and tail sealing device as claimed in claim 6, wherein the diameter of the semicircular groove (19) is consistent with that of the steel wire rope (21).