CN215490983U - Double-layer rotary kiln barrel - Google Patents
Double-layer rotary kiln barrel Download PDFInfo
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- CN215490983U CN215490983U CN202121219574.XU CN202121219574U CN215490983U CN 215490983 U CN215490983 U CN 215490983U CN 202121219574 U CN202121219574 U CN 202121219574U CN 215490983 U CN215490983 U CN 215490983U
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Abstract
The utility model discloses a double-layer rotary kiln cylinder, which comprises an outer cylinder, an inner cylinder and a plurality of annular plates arranged between the outer cylinder and the inner cylinder, wherein the inner wall of each annular plate is sleeved outside the inner cylinder, and the outer wall of each annular plate is fixedly connected with the outer cylinder through a plurality of support frames; each annular plate is provided with a disconnection positioning opening; the inner cylinder body is positioned in the disconnection positioning opening to fix the guide plate, and a slotted cover plate is welded on the outer side of the disconnection positioning opening; each support frame is of a structure shaped like a Chinese character 'ji', the bottom of each support frame is jointed and welded with the outer side of the annular plate, and the top of each support frame is jointed and welded with the inner wall of the outer cylinder; and the inner cylinder body is at least provided with a support frame at the top of the disconnection opening, and the two ends of the bottom of the inverted U-shaped structure of the support frame cross the groove cover plate. This neotype double-deck rotary kiln barrel has guaranteed that inside and outside barrel installation simple, the concentricity reaches easily, and sealing performance is good, the life-span is longer at the operation in-process.
Description
Technical Field
The utility model relates to the technical field of building materials, metallurgy and chemical industry, in particular to a double-layer rotary kiln cylinder.
Background
Because the inner and outer cylinder bodies of the double-layer rotary kiln cylinder body are made of different materials and have different sizes, the inner cylinder body expands more than the outer cylinder body under the working state influenced by temperature. The original inner cylinder body support consisting of the strip-shaped plates, the groove cover plates, the guide plates and the annular plates is limited by the rotation direction and can only rotate at one time, and the coaxial precision of the inner cylinder body and the outer cylinder body is not high, so that the deformation of the inner cylinder body of the rotary kiln is large, the concentricity difference between the inner cylinder body and the outer cylinder body is large, the vibration of the rotary body cylinder body is caused, and the use performance of the rotary body cylinder body is reduced.
In addition, the original method for connecting the inner cylinder and the outer cylinder is that a guide plate is welded on the outer side of the inner cylinder, an annular plate and a groove cover plate are wrapped outside the inner cylinder and the guide plate and are welded into a whole, then the inner cylinder is placed in the corresponding position in the outer cylinder, the concentricity of the inner cylinder and the outer cylinder is adjusted by means of a special tool due to the fact that the diameter and the length of the cylinder are large, then the annular plate is welded on the outer cylinder through a strip-shaped plate, and the whole process is complicated and complicated.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides the double-layer rotary kiln cylinder which can ensure that the rotary kiln can stably run under different thermal expansion conditions of the inner cylinder and the outer cylinder, has simple installation process and easily meets the requirement of concentricity.
The technical scheme adopted by the utility model is as follows:
the double-layer rotary kiln barrel comprises an outer barrel, an inner barrel and a plurality of annular plates arranged between the outer barrel and the inner barrel, wherein the inner wall of each annular plate is sleeved outside the inner barrel, and the outer wall of each annular plate is fixedly connected with the outer barrel through a plurality of supporting frames; each annular plate is provided with a disconnection positioning opening; the inner cylinder body is positioned in the disconnection positioning opening to fix the guide plate, and a slotted cover plate is welded on the outer side of the disconnection positioning opening;
each support frame is of a structure shaped like a Chinese character 'ji', the bottom of each support frame is jointed and welded with the outer side of the annular plate, and the top of each support frame is jointed and welded with the inner wall of the outer cylinder;
and the inner cylinder body is at least provided with a support frame at the top of the disconnection positioning opening, and the two ends of the bottom of the inverted U-shaped structure of the support frame cross the groove cover plate.
Preferably, an end baffle protruding towards the inner cylinder is fixed at one end of the outer cylinder;
set up axial adjustment sealing device between tip baffle and the interior barrel:
the axial adjusting sealing device comprises a movable sealing cover and a sealing gland, and a bolt assembly used for fastening the movable sealing cover and the sealing gland on the end baffle;
the movable sealing cover comprises a sealing cylinder body arranged on the outer side of the inner cylinder body and a sealing connecting part;
one end of the sealing gland is arranged in the sealing cylinder body and compresses the sealing element, and the other end of the sealing gland is fixedly connected with the bolt assembly.
Preferably, one end of the inner cylinder is fixedly connected with the outer cylinder in a welding mode, and the other end of the inner cylinder is connected with the outer cylinder through the end baffle axial adjusting and sealing device, so that radial displacement adjustment of the double-layer rotary kiln cylinder is achieved, unnecessary collision or abrasion of the double-layer rotary kiln cylinder in the working process is reduced, and the service life of the double-layer rotary kiln cylinder is prolonged.
Preferably, the outer side of the bolt assembly is provided with a sheath.
Preferably, the outer cylinder is connected with an air inlet pipe to obtain hot air, and is provided with an air outlet to be connected with the air inlet pipe through an air pipe to realize hot air circulation.
Preferably, the outer side of the air outlet is connected with a double-layer sealing cover for improving the sealing performance between the inner cylinder body and the outer cylinder body.
Preferably, the outer side of the double-layer sealing cover is provided with a fish scale sealing structure which comprises an outer layer sealing cover and an inner layer sealing cover;
an air outlet gap is arranged between the inner layer sealing cover and the outer layer sealing cover;
and the air outlet gap is parallel to the direction of the air outlet and is provided with at least one sealing ring plate.
Preferably, an adjusting gasket is further arranged between the sealing connecting part of the movable sealing cover and the end baffle and used for adjusting the distance between the movable sealing cover and the end face of the end baffle.
Compared with the prior art, the utility model has the beneficial effects that:
1. interior, outer barrel is connected through "nearly" style of calligraphy structure support frame, but interior barrel forward and reverse rotation, difficult production is out of shape, and under the difference in height effect of "nearly" style of calligraphy structure support frame, the interior external diameter processing of back can independently be welded to groove cover board and annular plate, thereby satisfy the concentricity requirement of interior, outer barrel, again with outer barrel welding, barrel in the back installation, the coaxial precision of interior barrel is high, and not because of temperature variation, the material coefficient of expansion is different and is influenced. And the support frame with the inverted V-shaped structure can bear the same tensile force when the rotary kiln rotates forwards or reversely, and has the same support strength, so that the durability is good.
2. The rotary kiln can rotate forward and backward, so that the situation that the rotary kiln needs to rotate forward and backward is realized; the inner sealing installation and replacement of the double-layer rotary kiln cylinder body are convenient and quick, and the outer sealing of the double-layer rotary kiln cylinder body is more reliable, safe and leak-free.
This neotype double-deck rotary kiln barrel has guaranteed that inside and outside barrel installation simple, the concentricity reaches easily, and sealing performance is good, use strength is high, the life-span is longer at the operation in-process.
Drawings
FIG. 1 is a front view of a double-layer rotary kiln cylinder;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view at A of FIG. 1;
FIG. 4 is an enlarged view at B of FIG. 1;
FIG. 5 is an enlarged view at C of FIG. 2;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
wherein: 10-outer cylinder, 11-air outlet; 20-inner cylinder, 30-annular plate, 31-opening positioning opening, 32-guide plate and 33-groove cover plate; 40-a support frame, 50-an end baffle, 60-an axial adjusting sealing device, 61-a movable sealing cover, 611-a sealing cylinder and 612-a sealing connecting part; 62-sealing gland, 63-bolt assembly, 64-compression sealing element, 65-sheath; 70-double-layer sealing cover, 71-fish scale sealing structure, 72-outer sealing cover, 73-inner sealing cover, 74-air outlet gap, 75-sealing ring plate; 80-air inlet pipe.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further explained with reference to the accompanying drawings and examples, which are only for the purpose of explaining the present invention and do not limit the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the combination or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, are not to be construed as limiting the present invention. In addition, in the description process of the embodiment of the present invention, the positional relationships of the devices such as "upper", "lower", "front", "rear", "left", "right", and the like in all the drawings are based on fig. 1.
As shown in fig. 1, the double-layer rotary kiln cylinder comprises an outer cylinder 10, an inner cylinder 20 and a plurality of annular plates 30 arranged between the outer cylinder 10 and the inner cylinder 20, wherein each annular plate 30 is sleeved outside the inner cylinder 20, and the outer wall of each annular plate is fixedly connected with the outer cylinder 10 through a plurality of support frames 40; as shown in detail in fig. 5, each annular plate 30 has a break-away positioning opening 31; the inner cylinder body 20 is positioned in the disconnection positioning opening 31 to fix the guide plate 32, and a slotted cover plate 33 is welded outside the disconnection positioning opening 31;
each support frame 40 is in a structure like a Chinese character 'ji', the bottom of each support frame is jointed and welded with the outer side of the annular plate 30, and the top of each support frame is jointed and welded with the inner wall of the outer cylinder 10;
as shown in fig. 2 and 5, at least one supporting frame 40 is arranged on the top of the opening 31 of the inner cylinder 20, and the two ends of the bottom of the inverted-n-shaped structure of the supporting frame 40 cross the slot cover plate 33, so that the pulling action of the outer cylinder on the inner cylinder is realized, and no matter the rotary kiln cylinder is in forward transmission or reverse rotation, the annular plate is same in stress, and cannot be influenced by overlarge stress due to reverse action, and the service life of the annular plate is prolonged. In addition, when the double-layer rotary kiln cylinder body is installed, the support frame 40 with the inverted V-shaped structure is welded with the annular plate 30, the concentricity between the support frame and the inner cylinder body and the concentricity between the support frame and the annular plate 30 can be pre-detected, if the concentricity is in a problem, the welded annular plate can be processed in time and then welded with the outer cylinder body 10, and finally a part formed by the welded annular plate and the support frame 40 is welded with the inner cylinder body 20, so that the concentricity of the whole double-layer rotary kiln cylinder body can be ensured, the whole installation process is simple, and the concentricity is convenient to adjust.
As shown in fig. 1 and 4, the outer cylinder 10 of the double-layer rotary kiln cylinder has an end baffle 50 fixed to one end thereof and protruding toward the inner cylinder 20;
an axial adjusting and sealing device 60 is arranged between the end baffle 50 and the inner cylinder 20, and is used for ensuring that the inner cylinder and the outer cylinder have certain axial compression force in the operation process, and the sealing element can be conveniently moved out and replaced simultaneously:
with particular reference to fig. 4, the axially adjustable seal 60 includes a movable seal cap 61 and a seal gland 62, a bolt assembly 63 for securing the movable seal cap 61 and the seal gland 62 to the end stop 50;
the movable sealing cover 61 comprises a sealing cylinder 611 arranged outside the inner cylinder 20 and a sealing connecting part 612;
the sealing gland 62, one end is in sealed barrel 611 and compresses tightly sealing member 64, the other end is fastened with bolt assembly 63 and is connected, this axial adjustment sealing device's connection structure, make interior barrel and outer barrel in the operation process, certain axial displacement has, can bear certain compressive force, and can conveniently shift out and change the pressure seal, better contribution has been made for the maintainability of double-deck rotary kiln barrel, and it adopts the interior barrel outside to set up sealing device and sets up sealedly than outer barrel inboard, it is easy to make interior barrel expend with heat and contract with cold along seal chamber and gland axial displacement, installation easy maintenance, the sealed part size reduces relatively, and cost is reduced, axial adjustment sealing device arranges in interior barrel end plane.
As can be seen from FIG. 4, the bolt assembly 63 is provided with a sheath 65 on the outer side, so that the abrasion of the sealing parts due to the contact with materials is reduced, and the service life is long.
In addition, one end of the inner cylinder 20 is fixedly connected with the outer cylinder 10 in a welding manner, and the other end of the inner cylinder is connected with the outer cylinder 10 through the axial adjusting and sealing device 60 of the end baffle 50, so that the radial displacement adjustment of the double-layer rotary kiln cylinder is realized, unnecessary collision or abrasion of the double-layer rotary kiln cylinder in the working process is reduced, and the service life of the double-layer rotary kiln cylinder is prolonged.
Fig. 1 also shows that the outer cylinder 10: the double-layer rotary kiln is also connected with an air inlet pipe 80 to obtain hot air, and an air outlet 11 is arranged to connect the air inlet pipe 80 through an air pipe to realize hot air circulation, so that the double-layer rotary kiln barrel is circularly heated, the heat utilization rate is improved, and energy is saved. Preferably, the double-layer sealing cover 70 is connected to the outer side of the air outlet 11, so that the sealing performance between the inner cylinder and the outer cylinder is improved, and the energy-saving efficiency is higher.
In the double-layer rotary kiln structure illustrated in fig. 1 and 3, a fish scale sealing structure 71 is arranged on the outer side of the double-layer sealing cover 70, and comprises an outer layer sealing cover 72 and an inner layer sealing cover 73;
an air outlet gap 74 is arranged between the inner layer sealing cover 73 and the outer layer sealing cover 72;
and the air outlet gap 74 is provided with at least one sealing ring plate 75 parallel to the air outlet direction to form labyrinth seal in the other direction, so that the sealing performance of the air outlet is further improved.
Preferably, as can be seen from fig. 4, an adjusting gasket 66 is further disposed between the sealing connection portion 612 of the movable sealing cover 61 and the end baffle 50, and is used for adjusting a distance between the movable sealing cover 61 and the end surface of the end baffle 50, so as to adjust to the length of the pressing sealing member 64 or the length of the sealing cylinder 611, reduce unnecessary reciprocating modification and processing of parts, save installation time, and improve installation and maintenance efficiency.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.
Claims (8)
1. A double-layer rotary kiln cylinder comprises an outer cylinder (10), an inner cylinder (20) and a plurality of annular plates (30) arranged between the outer cylinder (10) and the inner cylinder (20); each annular plate (30) is sleeved outside the inner cylinder (20) at the inner wall, and is fixedly connected with the outer cylinder (10) at the outer wall through a plurality of support frames (40); each annular plate (30) has a break-out positioning opening (31); the inner cylinder (20) is positioned in the disconnection positioning opening (31) and is fixedly provided with a guide plate (32), and a slotted cover plate (33) is welded on the outer side of the disconnection positioning opening (31); the method is characterized in that:
each support frame (40) is of a structure shaped like a Chinese character 'ji', the bottom of each support frame is jointed and welded with the outer side of the annular plate (30), and the top of each support frame is jointed and welded with the inner wall of the outer cylinder (10);
and the inner cylinder body (20) is provided with at least one support frame (40) at the top of the disconnection positioning opening (31), and the two ends of the bottom of the inverted U-shaped structure of the support frame (40) cross the groove cover plate (33).
2. The double-layer rotary kiln cylinder of claim 1, wherein:
an end baffle (50) protruding towards the inner cylinder (20) is fixed at one end of the outer cylinder (10);
an axial adjusting sealing device (60) is arranged between the end baffle (50) and the inner cylinder (20):
the axial adjusting sealing device (60) comprises a movable sealing cover (61) and a sealing gland (62), and a bolt assembly (63) used for fastening the movable sealing cover (61) and the sealing gland (62) on the end baffle (50);
the movable sealing cover (61) comprises a sealing cylinder body (611) arranged on the outer side of the inner cylinder body (20) and a sealing connecting part (612);
the sealing gland (62) is arranged in the sealing cylinder body (611) at one end and compresses the sealing piece (64), and the other end is fixedly connected with the bolt assembly (63).
3. The double-layer rotary kiln cylinder of claim 2, wherein:
and a sheath (65) is arranged on the outer side of the bolt assembly (63).
4. The double-layer rotary kiln cylinder of claim 3, wherein: one end of the inner cylinder (20) is fixedly connected with the outer cylinder (10) in a welding way, and the other end of the inner cylinder is connected with the outer cylinder (10) through an end baffle (50) and an axial adjusting and sealing device (60).
5. The double-deck rotary kiln cylinder of any one of claims 1-4, wherein:
the outer cylinder body (10) is connected with an air inlet pipe (80) to obtain hot air, and is provided with an air outlet (11) to be connected with the air inlet pipe (80) through an air pipe to realize hot air circulation.
6. The double-layer rotary kiln cylinder of claim 5, wherein:
the outer side of the air outlet (11) is connected with a double-layer sealing cover (70).
7. The double-layer rotary kiln cylinder of claim 6, wherein:
the outer side of the double-layer sealing cover (70) is provided with a fish scale sealing structure (71) which comprises an outer layer sealing cover (72) and an inner layer sealing cover (73);
an air outlet gap (74) is arranged between the inner layer sealing cover (73) and the outer layer sealing cover (72);
and the air outlet gap (74) is provided with at least one sealing ring plate (75) parallel to the direction of the air outlet.
8. The double-deck rotary kiln cylinder of claim 2 or 3 or 4, wherein: an adjusting gasket (66) is arranged between the sealing connecting part (612) of the movable sealing cover (61) and the end baffle (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121219574.XU CN215490983U (en) | 2021-06-02 | 2021-06-02 | Double-layer rotary kiln barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121219574.XU CN215490983U (en) | 2021-06-02 | 2021-06-02 | Double-layer rotary kiln barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215490983U true CN215490983U (en) | 2022-01-11 |
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ID=79782160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121219574.XU Active CN215490983U (en) | 2021-06-02 | 2021-06-02 | Double-layer rotary kiln barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215490983U (en) |
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2021
- 2021-06-02 CN CN202121219574.XU patent/CN215490983U/en active Active
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