CN212058235U - Backing plate mounting structure of rotary kiln - Google Patents
Backing plate mounting structure of rotary kiln Download PDFInfo
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- CN212058235U CN212058235U CN202020817908.2U CN202020817908U CN212058235U CN 212058235 U CN212058235 U CN 212058235U CN 202020817908 U CN202020817908 U CN 202020817908U CN 212058235 U CN212058235 U CN 212058235U
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- cylinder body
- cylinder
- mounting structure
- backing plate
- stop block
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model relates to the technical field of grinding process equipment, in particular to a base plate mounting structure of a rotary kiln, which comprises a cylinder body and a plurality of base plates, wherein the base plates are provided with a first free connecting surface adjacent to the cylinder body; the base plate is provided with four surfaces connected with the first free connecting surface, the barrel is provided with a first L-shaped stop block for limiting the third surface and the fourth surface at the same time, the barrel is provided with a second L-shaped stop block for limiting the third surface and the sixth surface at the same time, and the barrel is fixedly provided with a first plane stop block for limiting the fifth surface independently. The cylinder body and the backing plate are freely connected, so that the alternating stress of the cylinder body is reduced, and the service life of the backing plate is prolonged; when the base plate needs to be replaced, the base plate can be pulled out along the axis direction of the cylinder body only by cutting the first plane stop block, so that the base plate is convenient to replace; in addition, the number of times of using the same welding area for repeated welding is reduced, the alternating stress generated on the welding part is reduced, and the barrel is prevented from generating cracks.
Description
Technical Field
The utility model relates to a technical field of grinding process equipment especially relates to a backing plate mounting structure of rotary kiln.
Background
In the prior art, a rotary kiln is used for a wet slag drying process, and mainly has the function of drying wet slag with the water content of more than 18% into dry slag with the water content of less than 1%, so that cement can be conveniently added.
As shown in fig. 1-3, the belt 3 in the rotary kiln, also called rolling ring, is used to transmit all the gravity of the cylinder 1 '(including the gravity of the refractory bricks, the internal devices and the materials) to the supporting roller, and to make the cylinder 1' with radius R 'rotate smoothly on the supporting roller, so that the belt 3' has certain strength and durability, and at the same time, the belt 3 'is a part for enhancing the radial rigidity of the cylinder 1' and has certain rigidity. In the operation process of the rotary kiln, the cylinder 1 'and the belt 3' roll relatively and slide relatively at the same time, in order to avoid the direct action between the cylinder 1 'and the belt 3', the existing cylinder 1 'and the backing plate 2' are welded together directly through a three-side welding seam, the cylinder 1 'and the belt 3' slide relatively through the backing plate 2 ', a corresponding gap is set between the backing plate 2' and the belt 3 'according to the thermal expansion coefficient, the size of the gap can influence the transverse deformation amount of the cylinder 1', the backing plate 2 'belongs to the consumable material of the equipment, after the backing plate 2' is worn, the gap is enlarged, the belt 3 'moves axially on the backing plate 2' for a long time to form an axial impact force, in the aspect of refractory material, the cylinder 1 'deforms, so that the refractory bricks in the kiln loosen, crack and even fall off are caused in the aspect of machinery, and the belt 3' cracks, The bad effects of kiln body crack, eccentric rotation of the rotary kiln, high temperature of the bearing bush and the like, so the excessively worn backing plate 2' needs to be replaced in time according to the gap and the actual operation condition.
Normally, the worn backing plate 2 ' needs to be cut off from the cylinder 1 ' when replacing the backing plate 2 ', and the existing cylinder 1 ' and the backing plate 2 ' are directly welded together through a three-side welding seam, so that the following problems exist: firstly, the welding seam is long, and long cutting time is needed; secondly, the new backing plate 2 'is repeatedly arranged in the same area, alternating stress is generated on the welding part by the upward and downward swinging of the backing plate 2' in the operation process, so that cracks are easily generated on the welding part of the barrel 1 'and the backing plate 2', the times of production halt and maintenance of the rotary kiln need to be increased, the utilization rate of rotary kiln equipment is reduced, and the urgent solution needs to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a backing plate mounting structure of rotary kiln reduces the alternating stress of barrel, has improved the life of backing plate, has also made things convenient for the change of backing plate. The utility model discloses a following technical scheme realizes:
a base plate mounting structure of a rotary kiln comprises a cylinder body and a plurality of base plates, wherein a first free connecting surface adjacent to the cylinder body is arranged on each base plate, a second surface is arranged on the base plate on the side surface opposite to the first free connecting surface, and a radial gap is formed between each second surface and a corresponding wheel belt; four surfaces connected with four sides of the first free connection surface on the backing plate are respectively a third surface, a fourth surface, a fifth surface and a sixth surface, the third surface and the fourth surface and the third surface and the sixth surface are intersected along the radial direction of the cylinder body, the fifth surface and the fourth surface and the fifth surface and the sixth surface are intersected along the radial direction of the cylinder body, the fourth surface and the sixth surface are parallel to the axis of the cylinder body, a first L-shaped stop block for simultaneously limiting the third surface and the fourth surface is fixedly arranged at an included angle of the cylinder body positioned on the third surface and the fourth surface, a second L-shaped stop block for simultaneously limiting the third surface and the sixth surface is fixedly arranged at an included angle of the cylinder body positioned on the third surface and the sixth surface, and a first plane stop block used for limiting the fifth surface independently is fixedly arranged on the cylinder body.
Preferably, a second flat stop block is fixedly arranged on the fourth surface of the cylinder body, and a first distance is arranged between the second flat stop block and the first L-shaped stop block.
Preferably, a third plane stop block is further fixedly arranged on the sixth surface of the cylinder body, and a second distance is arranged between the third plane stop block and the second L-shaped stop block.
Preferably, the first L-shaped stopper is fixed to the cylinder by welding.
Specifically, the second L-shaped stopper and the barrel are fixed by welding.
Specifically, the first plane stop block and the barrel are fixed by welding.
Specifically, the second plane stopper and the barrel are fixed by welding.
Specifically, the third plane stopper and the cylinder are fixed by welding.
In addition, it is preferable that the arrangement directions of the third surface, the fourth surface, the fifth surface, and the sixth surface of two adjacent tie plates are opposite to each other, and the installation positions of the first L-shaped stopper, the second L-shaped stopper, and the first flat stopper are changed accordingly.
The beneficial effects are that: compared with the prior art, the cylinder body and the backing plate are freely connected, so that the alternating stress of the cylinder body is reduced, and the service life of the backing plate is prolonged; meanwhile, the first L-shaped stop block, the second L-shaped stop block and the first plane stop block which are fixed on the cylinder body are used for limiting the base plate, when the base plate needs to be replaced, the base plate can be pulled out along the axis direction of the cylinder body only by cutting the first plane stop block, and the base plate is convenient to replace; in addition, because first L shape dog, second L shape dog and first plane dog can exchange the position, after changing the backing plate, first plane dog can select one of them to weld at the backing plate along the both ends of axis, has reduced the number of times of using same welding area to weld repeatedly, and the luffing motion of backing plate reduces the alternating stress that produces to the welding position simultaneously in the operation in-process, avoids the barrel to produce the crackle, reduces the number of times that the rotary kiln stopped production and maintained, improves the utilization rate of rotary kiln equipment.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:
FIG. 1 is a front view of an embodiment of a prior art in which a backing plate is welded directly to a barrel;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic sectional view taken along line B-B in FIG. 1;
FIG. 4 is a front view of an embodiment of the present invention in which the base plate is freely connected to the cylinder by various stoppers;
FIG. 5 is a schematic cross-sectional view taken along line C-C of FIG. 4;
FIG. 6 is a schematic cross-sectional view taken along line D-D of FIG. 4;
FIG. 7 is a schematic view of the downward three-dimensional installation of the first free attachment surface of the tie plate;
FIG. 8 is a schematic perspective view of the tie plate with the first free attachment surface facing upward;
wherein the reference numerals are:
1. a barrel; 2. a base plate; 21. a first free attachment surface; 22. a second surface; 23. a third surface; 24. a fourth surface; 25. a fifth surface; 26. a sixth surface; 3. a belt wheel; 4. a first L-shaped stop; 5. a second L-shaped stop; 6. a first planar stop; 7. a second planar stop; 8. and a third plane stop.
Detailed Description
As shown in fig. 4, a mat mounting structure of a rotary kiln includes a cylinder 1 and a plurality of mats 2. If the cylinder 1 is horizontally arranged, the left-right direction is the axial direction of the cylinder 1, the radius of the cylinder 1 is R, and the backing plates 2 are circumferentially arranged outside the cylinder 1. As shown in fig. 4-8, the shim plate 2 is provided with a first free connecting surface 21 adjacent to the cylinder 1, instead of the conventional welding method, the opposite side of the shim plate 2 to the first free connecting surface 21 is provided with a second surface 22, the second surface 22 may be slightly smaller than the first free connecting surface 21 at the bottom, the second surface 22 faces to its corresponding belt 3, and a radial clearance (not shown in the drawings) is provided between the second surface 22 and the corresponding belt 3, and the radial clearance is designed for the operation of the device; the first free joint surface 21 on the backing plate 2 is generally quadrilateral, four surfaces of the backing plate 2 connected to four sides of the first free joint surface 21 are respectively a third surface 23, a fourth surface 24, a fifth surface 25 and a sixth surface 26 in sequence, the third surface 23 and the fourth surface 24, the third surface 23 and the sixth surface 26 are intersected along the radial direction of the cylinder 1, the fifth surface 25 and the fourth surface 24, the fifth surface 25 and the sixth surface 26 are intersected along the radial direction of the cylinder 1, the fourth surface 24 and the sixth surface 26 are opposite and parallel to the axis of the cylinder 1, the third surface 23 and the fifth surface 25 are opposite and parallel to the end surface of the cylinder 1, and an included angle between the third surface 23 and the fourth surface 24 on the cylinder 1 is fixedly arranged for simultaneously performing operations on the third surface 23 and the fourth surface 24 The barrel body 1 is provided with a first L-shaped stop block 4 for limiting, a second L-shaped stop block 5 for limiting the third surface 23 and the sixth surface 26 at the same time is fixedly arranged at the included angle between the third surface 23 and the sixth surface 26, and a first plane stop block 6 for limiting the fifth surface 25 independently is fixedly arranged on the barrel body 1. When the backing plate 2 needs to be replaced, the first plane stop block 6 is cut separately, the backing plate 2 can be pulled out along the axis direction of the cylinder body 1, the backing plate 2 shown in figure 5 can be pulled out rightwards, the backing plate 2 shown in figure 6 can be pulled out leftwards, and replacement is convenient. Compared with the prior art, the cylinder body 1 and the backing plate 2 of the utility model are freely connected, so that the alternating stress of the cylinder body 1 is reduced, and the service life of the backing plate 2 is prolonged; meanwhile, the backing plate 2 is limited by the first L-shaped stop block 4, the second L-shaped stop block 5 and the first plane stop block 6 which are fixed on the barrel body 1, when the backing plate 2 needs to be replaced, the backing plate 2 can be drawn out along the axis direction of the barrel body 1 only by cutting the first plane stop block 6, and the replacement of the backing plate 2 is facilitated; in addition, because first L shape dog 4, second L shape dog 5 and first plane dog 6 can change the opposite position, after changing backing plate 2, first plane dog 6 can select one of them to weld at backing plate 2 along the both ends of axis, has reduced and has used the number of times that same welding zone welded repeatedly, and the luffing motion of backing plate 2 reduces the alternating stress that produces the welding position simultaneously in the operation process, avoids barrel 1 to produce the crackle, reduces the number of times that the rotary kiln stopped production and maintained, improves the utilization rate of rotary kiln equipment.
As shown in fig. 7, a second planar stop 7 is further fixed on the fourth surface 24 of the cylinder 1, and a first distance X1 is provided between the second planar stop 7 and the first L-shaped stop 4, so as to properly control the first distance X1, such that the mat 2 cannot rotate around the radial direction of the cylinder 1.
As shown in fig. 7, a third plane stopper 8 is further provided on the cylinder 1 at the sixth surface 26, and a second distance X2 is provided between the third plane stopper 8 and the second L-shaped stopper 5 in order to properly control the first distance X2 such that the setting plate 2 cannot rotate about the radial direction of the cylinder 1.
In a further preferred embodiment, the first L-shaped stopper 4 is fixed to the cylinder 1 by welding, which has a high connection strength and is also resistant to high temperatures.
In a specific embodiment, the second L-shaped stopper 5 is fixed to the barrel 1 by welding, and has high connection strength and high temperature resistance.
In a specific embodiment, the first plane stopper 6 and the cylinder 1 are fixed by welding, and the connection strength is high and the cylinder is high-temperature resistant.
In a specific embodiment, the second flat stopper 7 is fixed to the cylinder 1 by welding, and has high connection strength and high temperature resistance.
In a specific embodiment, the third flat stopper 8 and the cylinder 1 are fixed by welding, and have high connection strength and high temperature resistance.
In a preferred embodiment, the arrangement directions of the third surface 23, the fourth surface 24, the fifth surface 25, and the sixth surface 26 of two adjacent tie plates 2 are opposite to each other, and the installation positions of the first L-shaped stopper 4, the second L-shaped stopper 5, and the first flat stopper 6 are changed accordingly. Therefore, the first plane stop blocks 6 which are required to be cut and welded frequently when the base plate 2 is replaced can be staggered, the influence of alternating stress caused by concentrated welding parts is reduced, and the working space of cutting and welding at the position is increased.
The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other into a new embodiment. The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.
Claims (7)
1. A base plate mounting structure of a rotary kiln comprises a cylinder body and a plurality of base plates, and is characterized in that a first free connecting surface adjacent to the cylinder body is arranged on each base plate, the opposite side surface of each base plate, which is positioned on the first free connecting surface, is a second surface, and a radial gap is formed between each second surface and a corresponding wheel belt; four surfaces connected with four sides of the first free connection surface on the backing plate are respectively a third surface, a fourth surface, a fifth surface and a sixth surface, the third surface and the fourth surface and the third surface and the sixth surface are intersected along the radial direction of the cylinder body, the fifth surface and the fourth surface and the fifth surface and the sixth surface are intersected along the radial direction of the cylinder body, the fourth surface and the sixth surface are parallel to the axis of the cylinder body, a first L-shaped stop block for simultaneously limiting the third surface and the fourth surface is fixedly arranged at an included angle of the cylinder body positioned on the third surface and the fourth surface, a second L-shaped stop block for simultaneously limiting the third surface and the sixth surface is fixedly arranged at an included angle of the cylinder body positioned on the third surface and the sixth surface, and a first plane stop block used for limiting the fifth surface independently is fixedly arranged on the cylinder body.
2. The dunnage mounting structure of claim 1, wherein a second planar stop is further secured to the barrel at the fourth surface, the second planar stop being spaced a first distance from the first L-shaped stop.
3. The dunnage mounting structure of claim 1, wherein a third planar stop is further provided on the cartridge body at the sixth surface, and a second distance is provided between the third planar stop and the second L-shaped stop.
4. The pallet mounting structure according to claim 1, wherein the fixing means between said first L-shaped stopper and said cylinder is welding.
5. The pallet mounting structure according to claim 1, wherein the fixing means between said second L-shaped stopper and said cylinder is welding.
6. The pallet mounting structure according to claim 1, wherein the fixing means between the first plane stopper and the cylinder is welding.
7. The mat mounting structure according to claim 1, wherein the arrangement directions of the third surface, the fourth surface, the fifth surface and the sixth surface of two adjacent mats are opposite, and the positions of the first L-shaped stopper, the second L-shaped stopper and the first flat stopper are changed accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020817908.2U CN212058235U (en) | 2020-05-15 | 2020-05-15 | Backing plate mounting structure of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020817908.2U CN212058235U (en) | 2020-05-15 | 2020-05-15 | Backing plate mounting structure of rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212058235U true CN212058235U (en) | 2020-12-01 |
Family
ID=73520346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020817908.2U Expired - Fee Related CN212058235U (en) | 2020-05-15 | 2020-05-15 | Backing plate mounting structure of rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212058235U (en) |
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2020
- 2020-05-15 CN CN202020817908.2U patent/CN212058235U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201201 |