CN114754575A - Rotary kiln device - Google Patents
Rotary kiln device Download PDFInfo
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- CN114754575A CN114754575A CN202210411774.8A CN202210411774A CN114754575A CN 114754575 A CN114754575 A CN 114754575A CN 202210411774 A CN202210411774 A CN 202210411774A CN 114754575 A CN114754575 A CN 114754575A
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- rotary kiln
- barrel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/22—Rotary drums; Supports therefor
- F27B7/24—Seals between rotary and stationary parts
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention discloses a rotary kiln device, which comprises a cylinder body and a cover head, wherein the cover head is covered at the end part of the cylinder body, the cylinder body can rotate around a central shaft, the cover head is fixedly arranged, the cylinder body is communicated with the cover head, and the rotary kiln device also comprises: the sealing component is fixedly connected with the end part of the cover head; the coaming assembly is fixedly connected with the barrel and extends outwards from the outer wall surface of the barrel along the radial direction; the sealing assemblies clamp the enclosing plate assemblies from two sides of the enclosing plate assemblies and are used for plugging the cylinder body and the cover head so as to limit gas in the cylinder body from overflowing outwards. Through the self-sealing type structure formed by the N-type coaming assembly and the U-type sealing assembly, the rotating mechanism part and the static mechanism part at the sealing position are integrally and relatively fixed under the axial and radial expansion or series movement conditions, and only relative rotation exists, so that the leakage problem caused by the sealing series movement of the traditional rotary kiln is avoided, and the sealing performance of the system is greatly improved.
Description
Technical Field
The invention relates to the field of organic solid waste recycling treatment, in particular to a rotary kiln device.
Background
Organic solid wastes are generally treated by a thermo-chemical conversion technique such as pyrolysis, gasification, etc. The thermochemical treatment such as pyrolysis, gasification and the like is usually performed in a rotary operation reactor, however, a large amount of combustible gas and toxic gases such as carbon monoxide, nitrogen oxides, sulfides and the like are generated in the treatment process such as pyrolysis, gasification and the like of the organic solid waste, and therefore a sealing device is required to seal the rotary operation reactor, and the toxic gases are prevented from leaking outside.
In the prior art, an axial sealing method of pressing a sealing material on an outer ring of a reactor to form a sealing ring is generally adopted, but the axial sealing causes the problem that a sealing ring is loose due to the action of gravity, so that toxic gas can leak.
Meanwhile, the rotary kiln is large in size, so that the rotary kiln is easy to jump or move in the rotation process to generate leakage in the processing process and after being subjected to thermal expansion deformation, and the traditional fish scale seal, labyrinth seal or filler seal are difficult to meet the high-performance sealing requirement required by the pyrolysis reaction.
Disclosure of Invention
The invention provides a rotary kiln device, which aims to overcome the defect that a radial seal in the prior art does not form a completely closed structure.
The invention solves the technical problems through the following technical scheme:
the utility model provides a rotary kiln device, rotary kiln device includes barrel and cover head, the cover head cover is located the tip of barrel, the barrel can rotate around the pivotal axis, the cover head is fixed to be set up, the barrel with the cover head is linked together, rotary kiln device still includes:
the sealing assembly is fixedly connected to the end part of the cover head;
The coaming assembly is fixedly connected to the barrel and extends outwards from the outer wall surface of the barrel along the radial direction;
the sealing assembly clamps the enclosing plate assembly from two sides of the enclosing plate assembly, and is used for plugging the barrel and the cover head so as to limit the outward overflow of gas in the barrel.
In the scheme, the enclosing plate assembly extending outwards from the outer wall surface of the barrel in the radial direction is utilized to convert axial sealing into radial sealing, so that the situation that the sealing surface of the axial sealing is tightened and loosened due to the action of gravity can be avoided, and the problems of poor sealing effect and short service life can be further avoided; utilize seal assembly to press from both sides tight bounding wall subassembly from the both sides of bounding wall subassembly, can form a closed loop structure in bounding wall subassembly and seal assembly's sound faying face department. If gas overflows from the dynamic and static joint surfaces of the coaming component and the sealing component, the gas can be sealed by the sealing components on two sides in sequence, so that the sealing surface is increased, and the gas leakage can be effectively avoided.
Preferably, the sealing assembly comprises a sealing part and a pressing part, and the pressing part abuts against the sealing part to limit the gas in the barrel from overflowing outwards.
In this scheme, adopt above-mentioned structure, realized radial seal on the one hand, guaranteed that the static and dynamic combination sealed face does not receive rotary kiln operation in-process cluster to move the influence, on the other hand double-deck sealed effect is better.
Preferably, the sealing assembly comprises a sealing element, the sealing part is provided with a groove, the sealing element is arranged in the groove, and the sealing element is further used for being attached to the enclosing plate assembly.
Preferably, a first through hole is formed in the bottom of the groove, and the pressing portion penetrates through the first through hole to press the sealing element to the enclosing plate assembly.
In this scheme, adopt above-mentioned structure for can closely laminate between sealing member and the bounding wall subassembly, guarantee sealing performance.
Preferably, the sealing assembly comprises a clamping piece, the sealing part is provided with a second through hole or a through groove for placing the clamping piece, the wall surface of the clamping piece is attached to the surrounding plate assembly, and the pressing part acts on one surface of the clamping piece, which is far away from the surrounding plate assembly, so as to press the clamping piece to the surrounding plate assembly.
In this scheme, press from both sides the bounding wall subassembly through the portion that compresses tightly of both sides more firmly and press from both sides in the middle of sealing assembly to the clamping piece can avoid the bounding wall subassembly to move in sealing assembly is inside to take place to cluster and lead to gas leakage. When the enclosing plate assembly rotates along with the barrel, the in-process movement and expansion occur, the sealing assembly and the enclosing plate assembly can also keep consistency, the sealing effect is not influenced by the movement, and the sealing effect can be ensured.
Preferably, the compressing portion is provided with an accommodating cavity opened towards the sealing portion, an elastic body is arranged in the accommodating cavity, and two ends of the elastic body abut against the accommodating cavity and the sealing element respectively.
In this scheme, the elastic body can exert lasting packing force to the sealing member, and then can guarantee the inseparable laminating between sealing member and the bounding wall subassembly, has just also guaranteed the sealed effect of sealing member.
Preferably, the rotary kiln device further comprises a shaft sleeve, the inner side of the sealing assembly is pressed on the enclosing plate assembly or the cylinder body through the shaft sleeve, and the sealing assembly is in sliding connection with the enclosing plate assembly or the cylinder body;
and/or the sealing assembly is in flexible connection with the cover head.
In the scheme, the shaft sleeve is used for connecting the rotating part and the static part, so that the sealing assembly and the coaming assembly can perform the same serial movement and jumping in the radial direction in the rotating process of the coaming assembly, the relative rotation between the structural surfaces of the sealing assembly and the coaming assembly is further ensured, and the sealing effect is ensured;
the expansion and the movement of the rotating part and the static part in the axial direction in the rotating process of the cylinder body are absorbed through the flexible connection, so that the sealing surface is not influenced.
Preferably, a gap is formed between the sealing assembly and the surrounding plate assembly, a third through hole communicated with the gap is formed in the sealing assembly, and the third through hole is used for filling sealing materials into the gap;
and/or the enclosing plate assembly is provided with a fourth through hole which is communicated with the sealing assemblies on two sides.
In the scheme, other sealing materials such as oil, water, gas and the like are filled into the gap through the third through hole, and the sealing materials are filled through unique partition arrangement, namely a serial multiphase sealing form of solid, liquid/gas and solid, so that efficient sealing can be realized at a dynamic and static joint surface;
and the sealing assemblies on the two sides are communicated by adopting the fourth through hole, so that sealing materials are conveniently filled into gaps on the two sides.
Preferably, the number of the third through holes is multiple, and the multiple third through holes are communicated with each other;
and/or an induction component is arranged at the position of the third through hole communicated with the air inlet pipeline, and the pressure in the gap is monitored through the induction component.
Preferably, the enclosing plate assembly comprises a first extending portion, a bending portion and a second extending portion, the first extending portion extends outwards from the outer wall surface of the barrel in the radial direction, the bending portion is connected to the top of the first extending portion, the bending portion extends axially from the top of the first extending portion, the second extending portion is connected to the tail of the bending portion, the second extending portion extends inwards from the outer wall surface of the barrel in the radial direction, and the sealing assembly clamps the second extending portion from two sides of the second extending portion;
And/or the rotary kiln device further comprises a plurality of first baffle rings and second baffle rings, wherein the first baffle rings extend outwards from the outer wall surface of the barrel in the radial direction, the second baffle rings extend inwards from the inner wall surface of the cover head in the radial direction, and the first baffle rings and the second baffle rings are arranged in a crossed mode and have intervals;
and/or, the rotary kiln device further comprises a heat insulation ring, and the heat insulation ring is arranged between the cylinder and the enclosing plate assembly.
In the scheme, the first extension part, the bending part and the second extension part form an N shape, so that axial sealing is changed into radial sealing;
the first baffle ring and the second baffle ring are arranged in the cavity of the cover head to form labyrinth seal, so that the sealing effect of the device is further improved;
the heat insulation ring can effectively prevent the coaming assembly and the sealing assembly from being influenced by high temperature, and further prolongs the service life.
The positive progress effects of the invention are as follows:
according to the invention, the enclosing plate assembly extending outwards from the outer wall surface of the cylinder in the radial direction is utilized to convert axial sealing into radial sealing, so that the situation that the sealing surface of the axial sealing is tightened and loosened due to the action of gravity can be avoided, and the problems of poor sealing effect and short service life can be further avoided; utilize seal assembly to press from both sides tight bounding wall subassembly from the both sides of bounding wall subassembly, can form a closed loop structure in bounding wall subassembly and seal assembly's sound faying face department. If gas overflows from the dynamic and static joint surfaces of the coaming component and the sealing component, the gas can be sealed by the sealing components on two sides in sequence, so that the sealing surface is increased, and the gas leakage can be effectively avoided. Meanwhile, the double-layer clamping is adopted, so that the rotating part and the static part can only rotate relatively under the conditions of expansion and crosstalk, the leakage problem caused by crosstalk is avoided, and the sealing effect is improved.
Drawings
FIG. 1 is a schematic view of a rotary kiln apparatus according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
FIG. 3 is a schematic cross-sectional view A-A of FIG. 1;
fig. 4 is a schematic sectional view B-B of fig. 1.
Description of the reference numerals
Rotary kiln apparatus 100
Cylinder 1
Cover head 2
Pressing part 31
Third via 311
Sealing part 32
Seal 33
Clamping part 34
Second extension 43
Fourth through hole 45
Shaft sleeve 5
First baffle ring 6
Second retainer ring 7
Heat insulation ring 9
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the present embodiment provides a rotary kiln apparatus 100, the rotary kiln apparatus 100 includes a cylinder 1 and a cover head 2, the cover head 2 is covered on an end of the cylinder 1, the cylinder 1 can rotate around a pivot, the cover head 2 is fixedly disposed, the cylinder 1 is communicated with the cover head 2, the rotary kiln apparatus 100 further includes: the sealing component 3 is fixedly connected to the end part of the cover head 2; the coaming assembly 4 is fixedly connected to the barrel 1, and the coaming assembly 4 extends outwards from the outer wall surface of the barrel 1 along the radial direction; the sealing assembly 3 clamps the enclosing plate assembly 4 from two sides of the enclosing plate assembly 4, and the sealing assembly 3 is used for sealing the cylinder body 1 and the cover head 2 so as to limit the outward overflow of the gas in the cylinder body 1.
The enclosing plate assembly 4 extending outwards from the outer wall surface of the barrel 1 in the radial direction is used for converting axial sealing into radial sealing, so that the situation that the sealing surface of the axial sealing is loose due to the action of gravity can be avoided, and the problems of poor sealing effect and short service life can be further avoided; because the coaming component 4 fixedly connected with the cylinder body 1 rotates along with the cylinder body 1, the sealing component 3 fixedly connected with the cover head 2 is fixedly arranged, the coaming component 4 is clamped from two sides of the coaming component 4 by utilizing the sealing component 3, and a closed loop structure can be formed at the dynamic and static joint surfaces of the coaming component 4 and the sealing component 3. If gaseous sound faying face department from bounding wall subassembly 4 and seal assembly 3 overflows, then can loop through the seal assembly 3 of both sides and seal, increased sealed face to can avoid gaseous outer the leaking effectively.
In addition, because the sealing assembly 3 has clamped the bounding wall subassembly 4 in the middle from both sides to can avoid the circumstances that the bounding wall subassembly 4 takes place the skew, if adopt unilateral to compress tightly, then probably appear taking place to move when the bounding wall subassembly 4 rotates or because the high temperature leads to the inflation and leads to taking place the removal beyond the rotation between bounding wall subassembly 4 and the sealing assembly 3, thereby lead to gaseous the external leakage. Wholly form the slip slewing bearing support form through axle sleeve 5 and thermal-insulated circle 9 to further guarantee seal assembly 3 and thermal-insulated 9 relative position at axial and radial expansion or the uniformity and the simultaneity of cluster in-process, form relatively fixed, ensure that the sealed face of gyration sound combination only rotates relatively, but not receive rotary kiln operation in-process cluster to influence, thereby greatly improve rotary kiln sealing performance.
The surrounding plate assembly 4 comprises a first extending portion 41, a bending portion 42 and a second extending portion 43, the first extending portion 41 extends outwards from the outer wall surface of the barrel 1 along the radial direction, the bending portion 42 is connected to the top of the first extending portion 41, the bending portion 42 extends axially from the top of the first extending portion 41, the second extending portion 43 is connected to the tail portion of the bending portion 42, the second extending portion 43 extends inwards from the outer wall surface of the barrel 1 along the radial direction, and the sealing assembly 3 clamps the second extending portion 43 from two sides of the second extending portion 43.
Specifically, an N-shape is formed by the first extension portion 41, the bent portion 42, and the second extension portion 43, so that the axial seal is converted into a radial seal. The bottom of the second extension 43 does not abut against the outer wall surface of the cylinder 1, thereby facilitating the disposition of the sealing assembly 3 on both sides of the second extension 43. Further, the bent portion 42 has two parts, and the N-type structural boarding assembly 4 is assembled and mounted through the flange 46 in the middle of the bent portion 42.
In this embodiment, the surrounding plate assembly 4 further includes a circular ring member 44, the circular ring member 44 is sleeved on the outer wall of the cylinder 1 and is disposed parallel to the axis of the cylinder 1, the first extending portion 41 extends outward from one end of the circular ring member 44 along the radial direction, a gap exists between the second extending portion 43 and the circular ring member 44, and when the sealing assembly 3 clamps the second extending portion 43, the bottom of the sealing assembly 3 is pressed on the circular ring member 44 and blocks the gap. Therefore, if the gas overflows from the dynamic and static joint surfaces of the self-sealing assembly 3 and the circular ring member 44, the gas enters an N-shaped cavity formed by the circular ring member 44, the first extending portion 41, the bent portion 42 and the second extending portion 43, and is sealed by the sealing assembly 3.
In other certain embodiments, the shroud assembly 4 may comprise only an extension extending radially outward from the outer wall surface of the barrel 1, with the seal assembly 3 gripping the extension from both sides of the extension.
The sealing assembly 3 comprises a sealing portion 32 and a pressing portion 31, the pressing portion 31 abuts against the sealing portion 32 to limit outward overflow of gas in the barrel 1, the sealing assembly 3 comprises a sealing element 33, the sealing portion 32 is provided with a groove, the sealing element 33 is arranged in the groove, and the sealing element 33 is further used for being attached to the surrounding plate assembly 4. Specifically, sealing portion 32 is two ring subassemblies, two ring subassemblies are respectively overlapped behind barrel 1, two ring subassemblies are located the both sides of second extension 43 respectively along the radial extension's of barrel 1 part, two ring subassemblies are equipped with the one or more recess that are used for placing sealing member 33 or clamping piece 34 towards the side of second extension 43, reuse clamping portion 31 compresses tightly sealing member 33 or clamping piece 34 in the recess in second extension 43, thereby radial seal has been realized on the one hand, guaranteed that the sound combines sealed face not influenced by the running of rotary kiln in-process, on the other hand double-deck sealed effect is better.
In the present embodiment, the groove extends along the shape of the sealing portion 32, that is, the groove is circular, the sealing portions 32 on both sides are provided with two circles of grooves, and the two circles of grooves are arranged at intervals, that is, each sealing portion 32 has a double-layer seal, and the sealing member 33 is a solid sealing ring formed by a sealing material.
In other embodiments, only one turn of the groove may be provided on each seal 32, or three or more turns may be provided.
In order to enable the sealing member 33 to be tightly attached to the second extending portion 43 of the surrounding plate assembly 4, a first through hole (not shown) is formed in the bottom of the groove, and the pressing portion 31 penetrates through the first through hole to press the sealing member 33 to the surrounding plate assembly 4. Specifically, the first through holes are uniformly arranged in a plurality along the extending direction of the groove, so that a gap between the local sealing element 33 and the second extending portion 43 is prevented from being generated and leakage is avoided.
The sealing assembly 3 comprises a clamping piece 34, the sealing part 32 is provided with a second through hole or a through groove (not shown in the figure) for placing the clamping piece 34, the wall surface of the clamping piece 34 is attached to the surrounding plate assembly 4, and the pressing part 31 acts on one surface, far away from the surrounding plate assembly 4, of the clamping piece 34 to press the clamping piece 34 to the surrounding plate assembly 4. The clamping pieces 34 on two sides are pressed on two side faces of the enclosing plate assembly 4 through the pressing portions 31 on two sides, so that the enclosing plate assembly 4 is clamped in the middle of the sealing assembly 3 more firmly, and the clamping pieces 34 can avoid the enclosing plate assembly 4 from moving inside the sealing assembly 3 to cause gas leakage. And when the enclosing plate assembly 4 rotates together with the cylinder body 1, the serial motion and expansion occur, the sealing assembly 3 and the enclosing plate assembly 4 can also keep consistency, so that the sealing effect is not influenced by the serial motion, and the sealing effect can be ensured. The clamping member 34 is an annular slide, where the slide is substantially stationary and relative rotation occurs between the slide and the shroud assembly 4.
In the present embodiment, the clamping member 34 is disposed between two layers of the sealing member 33. In other embodiments, clamp 34 may be located elsewhere.
The rotary kiln device further comprises a shaft sleeve 5, the inner side of the sealing assembly 3 is pressed on the enclosing plate assembly 4 or the barrel body 1 through the shaft sleeve 5, and the sealing assembly 3 is in sliding connection with the enclosing plate assembly 4 or the sealing assembly 3 is in sliding connection with the barrel body 1. In this embodiment, utilize axle sleeve 5 to connect the inboard of seal assembly 3 and the ring spare 44 of bounding wall subassembly 4 to form the close fit of swivel bearing formula between the inboard of seal assembly 3 and the ring spare 44, thereby at the bounding wall subassembly 4 rotation in-process, seal assembly 3 can radially carry out the same cluster and beat with bounding wall subassembly 4, further guarantee to have only relative rotation between the structural plane of seal assembly 3 and bounding wall subassembly 4, ensured sealed effect.
In some embodiments without the circular ring member 44, the sealing assembly 3 is pressed on the cylinder 1 or the heat insulation ring 9, the sealing assembly 3 and the cylinder 1 or the heat insulation ring 9 are connected by the shaft sleeve 5, and form a close fit of a rotary bearing type, so that the sealing assembly 3 and the cylinder 1 or the heat insulation ring 9 have the same play and bounce, and the sealing effect is further ensured.
The sealing component 3 and the cover head 2 are in flexible connection 8. The expansion and the movement of the rotating part and the static part in the axial direction in the rotating process of the cylinder body 1 are absorbed through the flexible connection 8, so that the sealing surface is not influenced.
A gap 35 is formed between the sealing assembly 3 and the enclosing plate assembly 4, a third through hole 311 communicated with the gap 35 is formed in the sealing assembly 3, and the third through hole 311 is used for filling sealing materials into the gap 35. Specifically, other sealing materials, such as oil, water, and gas, are filled into the gap 35 through the third through hole 311, wherein the gas may be nitrogen or water vapor. The third through holes 311 are uniformly arranged along the circumferential direction of the sealing portion 32 of the sealing member 3, the third through hole 311 positioned at the top in the circumferential direction is an outlet, and the remaining third through holes 311 are inlets, so that the sealing material can flow in from a plurality of inlets which are uniformly arranged, and the sealing material can be uniformly filled in. Furthermore, since the inflow port is not provided at the top, it is convenient to fill the sealing material tightly from the bottom to the top. If the inflow port is provided at the top, the sealing material naturally flows downward during filling, and the sealing material at the top may be untight, which may result in poor sealing effect.
In the present embodiment, the gap 35 is provided between the sealing member 33 and the clamping member 34, and the sealing material is filled by a unique partition arrangement, i.e., a series multiphase sealing form of solid, liquid/gas, and solid, so that efficient sealing can be achieved at the position corresponding to the dynamic and static joint surfaces.
The third through hole 311 is communicated with the clamping piece 34, two circles of the third through holes 311 are arranged along the circumferential direction of the sealing portion 32, and one circle of the third through holes 311 is located above the clamping piece 34, so that lubricating oil can be introduced between the clamping piece 34 and the second extending portion 43 of the surrounding plate assembly 4 through the third through holes 311, the clamping piece 34 and the surrounding plate assembly 4 can rotate relatively smoothly, and damage to the clamping piece 34 and the surrounding plate assembly 4 due to excessive friction force is avoided.
On the other hand, the gas flows naturally from the high-pressure area to the low-pressure area. Gas is filled in a gap 35 between the sealing component 3 and the enclosing plate component 4, so that the gas pressure at the dynamic and static joint surfaces is higher than the gas pressure inside, the toxic gas is prevented from overflowing from the dynamic and static joint surfaces, and the sealing effect is further enhanced. Specifically, since the third through hole 311 and the gap 35 are communicated, a pressure sensor is disposed on the air intake pipe of the third through hole 311, the pressure sensor is used to detect the pressure in the gap 35, and then the control system is used to set the pressure to start to be introduced and the pressure to stop being introduced. When the pressure sensor detects that the pressure is smaller than the set pressure for starting to enter, the control system starts and enters the sealing material from the third through hole 311 after receiving the signal, the pressure is increased, and the entering is stopped until the pressure sensor detects that the pressure reaches the pressure for stopping entering.
When the third through holes 311 communicate with each other, a pressure sensor is not required. Specifically, the third through hole 311 for flowing the sealing material and the third through hole 311 for flowing the sealing material out or the third through hole 311 for flowing the sealing material are communicated with each other, so that a circulation system can be formed, and the sealing performance can be ensured.
Because the sealing assembly 3 on one side is located in the region enclosed by the first extending portion 41, the bent portion 42 and the second extending portion 43, in order to facilitate the gaps 35 on both sides to be filled with the sealing material, the enclosing plate assembly 4 is provided with a fourth through hole 45, the fourth through hole 45 is communicated with the sealing assemblies 3 on both sides, and at this time, the third through hole 311 is only opened in the sealing assembly 3 on the other side.
Specifically, the fourth through holes 45 are uniformly provided with two circles in the circumferential direction, and the positions of the fourth through holes 45 correspond to the positions of the third through holes 311, so that the sealing material is conveniently and uniformly arranged.
The pressing portion 31 is provided with an accommodating cavity opened toward the sealing portion 32, an elastic body 312 is provided in the accommodating cavity, and both ends of the elastic body 312 abut against the inner wall of the accommodating cavity and the sealing member 33, respectively. Specifically, after the sealing portion 32 is mounted on both sides of the second extending portion 43, the fastening member 314 of the pressing portion 31 is used to apply force to the elastic body 312, and then the elastic body 312 applies continuous pressing force to the sealing member 33, so that the sealing member 33 is tightly attached to the second extending portion 43, and the sealing effect of the sealing member 33 is ensured. The elastic body 312 may be a spring or other elastic structure capable of achieving the above-mentioned effects.
The cross section of the pressing part 31 is a transversely arranged U shape, so that a spring 33 can be arranged in a groove in the middle of the U shape, and the advantage of compact structure can be further realized on the basis of realizing the pressing effect.
In this embodiment, the sealing assemblies 3 on both sides of the second extension portion 43 of the surrounding plate assembly 4 are respectively a left circular ring and a right circular ring, and the left circular ring and the right circular ring are connected through a connecting bolt. The sealing assemblies 3 on the two sides are combined to form a U shape, and the second extending parts 43 of the enclosing plate assemblies 4 are inserted into the grooves of the U shape, so that the sealing assemblies 3 of the U shape are matched with the enclosing plate assemblies 4 of the N shape, a closed loop structure is formed, and the sealing performance is improved.
The rotary kiln device 100 further comprises a plurality of first retaining rings 6 and second retaining rings 7, wherein the first retaining rings 6 extend outwards from the outer wall surface of the barrel body 1 in the radial direction, the second retaining rings 7 extend inwards from the inner wall surface of the cover head 2 in the radial direction, and the first retaining rings 6 and the second retaining rings 7 are arranged in a crossed manner and have intervals. The sealing effect of the device is further improved by arranging the first retaining ring 6 and the second retaining ring 7 in the cavity of the cover head 2 to form a labyrinth seal.
The rotary kiln apparatus 100 further comprises a heat insulation ring 9, and the heat insulation ring 9 is arranged between the barrel 1 and the surrounding plate assembly 4. Because the pyrolysis and gasification processes are usually carried out at high temperature, the heat insulation ring 9 is arranged between the barrel 1 and the surrounding plate assembly 4, the surrounding plate assembly 4 and the sealing assembly 3 can be effectively prevented from being influenced by high temperature, and the service life is further prolonged.
It should be noted that, in this embodiment, the coaming assembly 4 is disc-shaped, and the sealing assembly 3 and the heat insulating ring 9 are both circular ring-shaped structures.
While specific embodiments of the invention have been described above, it will be understood by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes or modifications to these embodiments may be made by those skilled in the art without departing from the principle and spirit of this invention, and these changes and modifications are within the scope of this invention.
Claims (10)
1. The utility model provides a rotary kiln device, rotary kiln device includes barrel and cover, the cover is located the tip of barrel, the barrel can rotate around the center pin, the cover is fixed to be set up, the barrel with the cover is linked together, its characterized in that, rotary kiln device still includes:
the sealing assembly is fixedly connected to the end part of the cover head;
the surrounding plate assembly is fixedly connected to the barrel and extends outwards from the outer wall surface of the barrel in the radial direction;
the sealing assembly clamps the enclosing plate assembly from two sides of the enclosing plate assembly, and is used for plugging the cylinder and the cover head so as to limit the outward overflow of gas in the cylinder.
2. The rotary kiln apparatus as claimed in claim 1, wherein the seal assembly includes a sealing portion and a pressing portion, the pressing portion abutting against the sealing portion to restrict gas in the barrel from escaping outwardly.
3. The rotary kiln assembly as claimed in claim 2, wherein the seal assembly includes a seal member, the seal portion having a recess, the seal member being disposed in the recess, the seal member being further adapted to engage the shroud assembly.
4. The rotary kiln apparatus as claimed in claim 3, wherein a first through hole is provided at a bottom of the groove, and the pressing portion penetrates the first through hole to press the sealing member against the surrounding plate assembly.
5. The rotary kiln apparatus as claimed in claim 2, wherein the sealing assembly includes a clamping member, the sealing portion is provided with a second through hole or a through groove for receiving the clamping member, a wall surface of the clamping member abuts against the surrounding plate assembly, and the pressing portion acts on a surface of the clamping member away from the surrounding plate assembly to press the clamping member against the surrounding plate assembly.
6. The rotary kiln apparatus as claimed in claim 3, wherein the pressing portion is provided with a receiving cavity opened toward the sealing portion, an elastic body is provided in the receiving cavity, and both ends of the elastic body abut against the receiving cavity and the sealing member, respectively.
7. The rotary kiln device as claimed in claim 1, further comprising a shaft sleeve, wherein the inner side of the sealing assembly is pressed on the coaming assembly or the barrel body through the shaft sleeve, and the sealing assembly is slidably connected with the coaming assembly or the barrel body;
and/or the sealing assembly is flexibly connected with the cover head.
8. The rotary kiln apparatus as claimed in claim 1, wherein a gap is provided between the seal assembly and the surrounding plate assembly, a third through hole communicated with the gap is provided on the seal assembly, and the third through hole is used for filling a sealing material into the gap;
and/or the enclosing plate assembly is provided with a fourth through hole which is communicated with the sealing assemblies on the two sides.
9. The rotary kiln apparatus as claimed in claim 8, wherein the number of the third through holes is plural, and the plural third through holes are communicated with each other;
and/or an induction assembly is arranged at the position, communicated with the air inlet pipeline, of the third through hole, and the pressure in the gap is monitored through the induction assembly.
10. The rotary kiln apparatus as claimed in claim 1, wherein the shroud member includes a first extending portion extending outward in a radial direction from the outer wall surface of the cylinder, a bent portion connected to a top portion of the first extending portion, and a second extending portion extending axially from a top portion of the first extending portion, and connected to a rear portion of the bent portion, and extending inward in a radial direction from the outer wall surface of the cylinder, and the seal members clamp the second extending portion from both sides of the second extending portion;
And/or the rotary kiln device further comprises a plurality of first baffle rings and second baffle rings, wherein the first baffle rings extend outwards from the outer wall surface of the barrel in the radial direction, the second baffle rings extend inwards from the inner wall surface of the cover head in the radial direction, and the first baffle rings and the second baffle rings are arranged in a crossed mode and have intervals;
and/or, the rotary kiln device also comprises a heat insulation ring, and the heat insulation ring is arranged between the cylinder body and the coaming assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210411774.8A CN114754575B (en) | 2022-04-19 | 2022-04-19 | Rotary kiln device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210411774.8A CN114754575B (en) | 2022-04-19 | 2022-04-19 | Rotary kiln device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114754575A true CN114754575A (en) | 2022-07-15 |
| CN114754575B CN114754575B (en) | 2023-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210411774.8A Active CN114754575B (en) | 2022-04-19 | 2022-04-19 | Rotary kiln device |
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| JP2018017468A (en) * | 2016-07-28 | 2018-02-01 | 環境・エネルギーＲ＆Ｄ合同会社 | Cylindrical rotor seal device |
| CN209926840U (en) * | 2019-01-14 | 2020-01-10 | 新疆广汇煤炭清洁炼化有限责任公司 | Sealing structure of rotary kiln |
| CN110762219A (en) * | 2019-11-28 | 2020-02-07 | 软控股份有限公司 | Rotary sealing device and forming drum |
| US20200049257A1 (en) * | 2018-08-10 | 2020-02-13 | Cinchseal Associates, Inc. | Inner diameter rotating drum seal |
| CN212058236U (en) * | 2020-02-29 | 2020-12-01 | 唐山冀东发展机械设备制造有限公司 | Novel sealing device for rotary kiln head |
| CN113532105A (en) * | 2021-05-24 | 2021-10-22 | 安徽省泽乾冶金科技有限公司 | Rotary kiln sealing device |
| CN114754143A (en) * | 2022-05-18 | 2022-07-15 | 上海电气集团股份有限公司 | Sealing system of rotary reactor |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5383672A (en) * | 1992-08-28 | 1995-01-24 | Pe Flo-Tech, Inc. | Seal structure for rotary kiln |
| JP2006078149A (en) * | 2004-09-06 | 2006-03-23 | Tanabe:Kk | Sealing structure of rotary kiln |
| CN2935052Y (en) * | 2006-08-10 | 2007-08-15 | 林奇文 | Rotary kiln bidirectional sealing device |
| US20150354707A1 (en) * | 2013-02-06 | 2015-12-10 | Eagle Industry Co., Ltd. | Brush seal device |
| CN204373380U (en) * | 2014-12-04 | 2015-06-03 | 成都昊特新能源技术股份有限公司 | Pyrolysis rotary kiln hermetically-sealed construction |
| CN105627740A (en) * | 2016-03-29 | 2016-06-01 | 新疆广汇中化能源技术开发有限公司 | Sealing device of rotary kiln |
| JP2018017468A (en) * | 2016-07-28 | 2018-02-01 | 環境・エネルギーＲ＆Ｄ合同会社 | Cylindrical rotor seal device |
| CN106090232A (en) * | 2016-07-29 | 2016-11-09 | 湖南万容科技股份有限公司 | A kind of rotary kiln inner core rotary seal |
| US20200049257A1 (en) * | 2018-08-10 | 2020-02-13 | Cinchseal Associates, Inc. | Inner diameter rotating drum seal |
| CN209926840U (en) * | 2019-01-14 | 2020-01-10 | 新疆广汇煤炭清洁炼化有限责任公司 | Sealing structure of rotary kiln |
| CN110762219A (en) * | 2019-11-28 | 2020-02-07 | 软控股份有限公司 | Rotary sealing device and forming drum |
| CN212058236U (en) * | 2020-02-29 | 2020-12-01 | 唐山冀东发展机械设备制造有限公司 | Novel sealing device for rotary kiln head |
| CN113532105A (en) * | 2021-05-24 | 2021-10-22 | 安徽省泽乾冶金科技有限公司 | Rotary kiln sealing device |
| CN114754143A (en) * | 2022-05-18 | 2022-07-15 | 上海电气集团股份有限公司 | Sealing system of rotary reactor |
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| CN114754575B (en) | 2023-08-08 |
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