Novel connecting mechanism for cold air sleeve and kiln cylinder

Abstract

The utility model discloses a novel connecting mechanism of a cold air sleeve and a kiln cylinder, which comprises the cold air sleeve, the kiln cylinder and buffer connecting pieces, the cold air sleeve covers the kiln cylinder, and a plurality of buffer connecting pieces are arranged between the outer wall of the kiln cylinder and the cold air sleeve; the buffer connecting piece comprises elliptical cylinders and connecting frames, two connecting frames are fixed on each elliptical cylinder, the two connecting frames and short shafts of the elliptical cylinders are positioned on the same axis, and the other ends of the two connecting frames are mounted on the kiln cylinder and the cold air sleeve; when the cold air sleeve expands with heat and contracts with cold, the cold air sleeve and the kiln cylinder connecting piece can be prevented from being broken.

Description

Technical Field

[0001] The utility model relates to the field of cement processing equipment, and in particular to a novel connection mechanism between a cold air jacket and a kiln barrel. Background Art

[0002] At present, a cold air sleeve is arranged in the sealing cover of the kiln head, and the cold air sleeve is directly put on the kiln barrel. At present, the cold air sleeve and the outer wall of the kiln barrel are mainly installed through spring plates and pin shafts. During use, the temperature inside the kiln barrel is relatively high, and at the same time, the high temperature of the kiln barrel is radiated to the spring plate and the pin shaft. Since the spring plate and the pin shaft cannot withstand the high temperature, the spring plate and the pin shaft are prone to breakage during use; at the same time, when the kiln is opened, the kiln barrel is first heated and expanded, so that the spring plate contracts, and when the kiln is stopped, the cold air sleeve contracts, so that the spring plate and the pin shaft may break during use.

[0003] Since the cold air jacket loses its support, it will fall directly onto the kiln tube. In this case, it is necessary to stop processing immediately and repair the cold air jacket technically, which shortens the processing time but at the same time the maintenance cost is relatively high. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model proposes a novel connection mechanism between a cold air jacket and a kiln barrel, which can prevent the connection piece between the cold air jacket and the kiln barrel from breaking when the cold air jacket expands and contracts.

[0005] To achieve the above-mentioned purpose, the solution of the utility model is: a new connection mechanism between a cold air sleeve and a kiln barrel, comprising a cold air sleeve, a kiln barrel and a buffer connection piece, wherein the cold air sleeve is covered on the kiln barrel, and a plurality of buffer connection pieces are arranged between the outer wall of the kiln barrel and the cold air sleeve; the buffer connection piece comprises an elliptical cylinder and a connecting frame, two connecting frames are fixed on each elliptical cylinder, the two connecting frames and the short axis of the elliptical cylinder are located on the same axis, and the other ends of the two connecting frames are installed on the kiln barrel and the cold air sleeve.

[0006] Preferably, the plurality of buffer connectors are divided into two groups, an upper group and an lower group, and the upper group and the lower group of buffer connectors are staggered.

[0007] Preferably, the connecting frame is fixedly connected to the kiln tube and the cold air jacket by welding.

[0008] Preferably, the connection between the connecting frame and the kiln barrel and the cold air sleeve is detachably connected, and a docking assembly is arranged on the outer wall of the kiln barrel and the inner wall of the cold air sleeve, and the docking assembly includes a docking block, a limit block and a locking bolt. A docking groove is opened on the outer surface of the docking block, and the docking groove is a convex groove with an opening at the top of the docking groove. An embedded block is fixed at one end of the connecting frame away from the elliptical cylinder, and the embedded block is embedded in the docking groove. A limit block is inserted between the embedded block and the docking groove, and a cover plate is fixed on the top of the limit block. A coaxial threaded hole is opened between the limit block and the docking block, and a locking bolt is inserted in the threaded hole.

[0009] Preferably, a concentric alignment component is also provided between the kiln barrel and the cold air sleeve, and the concentric alignment component comprises a base plate, a positioning bevel block and a sliding component, wherein the base plate is a circular ring base plate and is equally divided into two halves in the middle of the base plate, the two base plates are spliced ​​and locked by bolts, and the inner wall of the base plate fits with the outer wall of the kiln barrel; a plurality of groups of positioning bevel blocks distributed in a circular array are provided on the base plate and each positioning bevel block is inclined downward and inward, and a sliding component is provided at the end of each positioning bevel block, and the sliding component is a steel ball roller.

[0010] Compared with the prior art, the advantages of the utility model are: 1. When the cold air sleeve expands and contracts due to heat and cold, the connecting piece between the cold air sleeve and the kiln barrel can be prevented from breaking; 2. The connecting piece between the cold air sleeve and the kiln barrel can be easily replaced and installed; 3. The kiln barrel and the cold air cover can be easily coaxial and the docking blocks can be arranged relatively. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a top view of the utility model.

[0012] Figure 2 It is a cross-sectional view of the utility model.

[0013] Figure 3 It is a schematic diagram of the connecting frame, the cold air jacket and the kiln cylinder of the utility model.

[0014] Figure 4 It is a cross-sectional view of the docking assembly of the utility model.

[0015] Figure 5 It is a schematic diagram of the concentric alignment component of the utility model.

[0016] Among them, 1. cold air sleeve, 2. kiln cylinder, 3. buffer connector, 4. elliptical cylinder, 5. connecting frame, 6. docking assembly, 7. docking block, 8. docking groove, 9. limit block, 10. locking bolt, 11. embedded block, 12. cover plate, 13. concentric alignment assembly, 14. bottom plate, 15. positioning bevel block, 16. sliding assembly. DETAILED DESCRIPTION

[0017] Now in conjunction with the accompanying drawings, the utility model is further explained.

[0018] Example 1 Figure 1 As shown, the improved design of the spring plate replacing the cold air sleeve 1 includes a cold air sleeve 1, a kiln barrel 2 and a buffer connector 3, wherein the cold air sleeve 1 is covered on the outer wall of the kiln barrel 2, and there is an air-permeable interlayer between the cold air sleeve 1 and the outer wall of the kiln barrel 2, and a plurality of buffer connectors 3 are arranged between the outer wall of the kiln barrel 2 and the cold air sleeve 1, and the buffer connectors 3 are used to prevent the kiln barrel 2 and the cold air sleeve 1 from breaking at the connection caused by inconsistent thermal expansion and contraction. The buffer connector 3 includes an elliptical cylinder 4 and a connecting frame, and two connecting frames are fixed on the outer walls of the left and right ends of each elliptical cylinder 4 by welding, and the two connecting frames are located on the same axis as the short axis of the elliptical cylinder 4. The other end of the frame is installed on the kiln barrel 2 and the cold air sleeve 1, and a buffer connection is performed through the buffer connector 3; when starting to work, high-pressure gas is introduced into the kiln barrel 2, so that the kiln barrel 2 expands first, so that the buffer connector 3 is squeezed, so that the elliptical cylinder 4 is squeezed and flattened, and after working for a period of time, the cold air sleeve 1 also expands, so that the flattened elliptical cylinder 4 is pulled back to its original shape; when the kiln is stopped, the cold air sleeve 1 cools and shrinks first, so that the elliptical cylinder 4 is squeezed and flattened, and after a period of time, the kiln barrel 2 also cools and shrinks, so that the elliptical cylinder 4 is pulled back to its original shape. Compared with the use of spring plates, the present application has a long service life and is not easy to be broken.

[0019] The plurality of buffer connectors 3 are divided into two groups, the upper and lower groups of buffer connectors 3 are staggered, and each group of buffer connectors 3 is distributed in a ring array, so that uniform pressure distribution is achieved.

[0020] At the same time, the connection frame of the present application is fixedly connected to the kiln barrel 2 and the cold air jacket 1 by welding, that is, the connection frame is connected to the kiln barrel 2 and the cold air jacket 1 by welding.

[0021] Embodiment 2, except for the following structure difference, other structures are consistent with embodiment 1; Figure 2-5As shown, the connection frame is detachably connected to the kiln barrel 2 and the cold air sleeve 1, and a docking assembly 6 is arranged on the outer wall of the kiln barrel 2 and the inner wall of the cold air sleeve 1. The docking assembly 6 includes a docking block 7, a limit block 9 and a locking bolt 10. The docking block 7 is fixed to the outer wall of the kiln barrel 2 and the inner wall of the cold air sleeve 1 by welding. A docking groove 8 is opened on the outer side of the docking block 7 (that is, the side of the docking block 7 away from the cold air sleeve 1 and the kiln barrel 2), the docking groove 8 is a convex groove and the top of the docking groove 8 is open (the bottom of the docking groove 8 is closed), and an embedded block 11 is arranged in an integral cutting and molding manner on one end of the connection frame away from the elliptical cylinder 4, and the embedded block 11 is embedded in the docking groove 8 (the embedded block 11 is inserted into the stack of docking grooves 8). There is a gap when there is a gap in it), a limiting block 9 is inserted into the gap between the embedded block 11 and the docking groove 8, the gap between the embedded block 11 and the docking groove 8 is filled by the limiting block 9, a cover plate 12 is fixed to the top of the limiting block 9 by welding, a coaxial threaded hole is opened between the limiting block 9 and the docking block 7, and a locking bolt 10 is inserted into the threaded hole; when working, the embedded block 11 is embedded into the docking groove 8, the limiting block 9 is inserted into the gap between the embedded block 11 and the docking groove 8, the top of the embedded block 11 is pressed by the cover plate 12, and the limiting block 9 is locked by inserting a bolt into the docking block 7, so that quick installation can be achieved without welding.

[0022] A concentric alignment component 13 is also arranged between the kiln tube 2 and the cold air jacket 1. The concentric alignment component 13 includes a bottom plate 14, a positioning oblique block 15 and a sliding component 16. The bottom plate 14 is a circular bottom plate 14 and the middle of the bottom plate 14 is equally divided into two halves. The joint of the two bottom plates 14 is spliced ​​and locked by bolts to form a ring. The inner wall of the bottom plate 14 fits the outer wall of the kiln tube 2. A plurality of groups of positioning oblique blocks 15 distributed in a circular array are installed on the bottom plate 14 by bolt fastening, and the inner side of each positioning oblique block 15 is inclined downward. At the end of each positioning oblique block 15, The end is fixed with a sliding component 16 by welding, and the sliding component 16 is a steel ball roller; before splicing, the cold air jacket 1 is lifted and sleeved on the kiln tube 2 by a lifting device, and the cold air jacket 1 is lowered, and the bottom of the cold air jacket 1 is placed on the positioning inclined block 15 for positioning. When it is lowered to the bottom, the bottom of the cold air jacket 1 contacts the top of the sliding component 16, so that the cold air jacket 1 can be rotated, so that the cold air jacket 1 and the docking block 7 on the kiln tube 2 are arranged relative to each other, which is convenient for the installation of the buffer connector 3. After the installation is completed, the bottom plate 14 is removed.

Claims

1. A new type of connection mechanism between a cold air jacket and a kiln barrel, comprising a cold air jacket, a kiln barrel and a buffer connection piece, wherein the cold air jacket is covered on the kiln barrel, and a plurality of buffer connections are arranged between the outer wall of the kiln barrel and the cold air jacket; characterized in that: The buffer connector includes an elliptical cylinder and a connecting frame. Two connecting frames are fixed on each elliptical cylinder. The two connecting frames and the short axis of the elliptical cylinder are located on the same axis. The other ends of the two connecting frames are installed on the kiln tube and the cold air sleeve.

2. According to claim 1, a new type of connection mechanism between a cold air jacket and a kiln drum is characterized in that: The plurality of buffer connectors are divided into two groups, an upper group and an lower group, and the upper group and the lower group of buffer connectors are staggered.

3. A novel connection mechanism between a cold air jacket and a kiln drum according to claim 2, characterized in that: The connecting frame is fixedly connected to the kiln tube and the cold air jacket by welding.

4. A novel connection mechanism between a cold air jacket and a kiln drum according to claim 3, characterized in that: The connection between the connecting frame and the kiln barrel and the cold air sleeve is detachable. A docking assembly is arranged on the outer wall of the kiln barrel and the inner wall of the cold air sleeve. The docking assembly includes a docking block, a limit block and a locking bolt. A docking groove is opened on the outer side of the docking block. The docking groove is a convex groove and the top of the docking groove is open. An embedded block is fixed at one end of the connecting frame away from the elliptical cylinder. The embedded block is embedded in the docking groove. A limit block is inserted between the embedded block and the docking groove. A cover plate is fixed on the top of the limit block. A coaxial threaded hole is opened between the limit block and the docking block, and a locking bolt is inserted in the threaded hole.

5. The novel connection mechanism between the cold air jacket and the kiln drum according to claim 4 is characterized in that: A concentric alignment component is also arranged between the kiln barrel and the cold air sleeve, and the concentric alignment component includes a base plate, a positioning bevel block and a sliding component, wherein the base plate is a circular base plate and is equally divided into two halves in the middle of the base plate, and the two base plates are spliced ​​and locked by bolts, and the inner wall of the base plate fits with the outer wall of the kiln barrel; a plurality of groups of positioning bevel blocks distributed in a circular array are arranged on the base plate, and each positioning bevel block is inclined inwardly and downwardly, and a sliding component is arranged at the end of each positioning bevel block, and the sliding component is a steel ball roller.

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