Rotary kiln barrel and wheel belt connecting device

Abstract

The utility model relates to a rotary kiln cylinder body and wheel belt connecting device which comprises a rotary kiln cylinder body (1), a wheel belt (2) and a plurality of limiting devices (3), the limiting devices (3) are fixedly arranged on the rotary kiln cylinder body, the limiting devices (3) are annularly and evenly arranged along the periphery of the rotary kiln cylinder body, and each limiting device comprises two limiting pieces (4) oppositely arranged on the left side and the right side of the wheel belt. Each limiting piece comprises a main base plate (41) and a check block (42), the main base plates are fixedly arranged on the rotary kiln barrel (1), the check blocks (42) are arranged on the main base plates (41) through adjusting pieces (5) capable of adjusting the heights of the check blocks, the rotary kiln barrel is sleeved with the wheel belt, an annular limiting ring is arranged on the inner ring face of the wheel belt (2), and the limiting ring is located between the check blocks (42) of the two limiting pieces (4) of the limiting device. The gap between the check block and the wheel belt can be adjusted to be in a proper size, the limiting effect on the wheel belt is improved, and the service life of the limiting device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, in particular to a connecting device between the rotary kiln cylinder and the tyre. Background Art

[0002] The rotary kiln mainly consists of a kiln head, a cylinder, a kiln tail and a power device, etc. An outlet is arranged on the kiln head. The cylinder is divided into a feeding section, a calcining section and a cooling section. An inlet is arranged on the kiln tail. The cylinder is inclined and supported on the supporting rollers of the base through the tyre, and rotates under the drive of the power device. During operation, materials enter the feeding section of the cylinder from the inlet, gradually move to the calcining section as the cylinder rotates, are calcined by the heat energy provided by the burner at the kiln head in the calcining section, and the calcined materials enter the cooling section for cooling and then are discharged from the outlet.

[0003] Since the cylinder of the rotary kiln is inclined, in order to prevent relative displacement between the cylinder and the tyre during rotation, a limiting device needs to be arranged on the outer surface of the cylinder to limit the tyre and prevent relative displacement between the tyre and the cylinder.

[0004] Moreover, the cylinder of the rotary kiln will expand and contract thermally in a high-temperature environment. An appropriate gap must be left between the limiting device of the cylinder and the tyre to compensate for the expansion amount caused by the temperature difference. If the gap is too large, the axial deformation of the rotary kiln cylinder will be too large, shortening the service life of the refractory bricks lined inside the rotary furnace cylinder. At the same time, the relative sliding between the tyre and the limiting device will increase, intensifying the wear of the tyre and the limiting device and reducing the service life. If the connection gap is too small, after the rotary kiln cylinder expands due to heat, an interference will occur between the limiting device and the tyre, resulting in necking of the rotary kiln cylinder, causing serious radial deformation of the rotary kiln cylinder, and causing loosening, distorted arrangement and falling off of the refractory bricks lined inside the rotary kiln cylinder.

[0005] The existing tyre limiting device usually arranges a plurality of annularly distributed blocks on the cylinder to limit the position of the tyre on both sides of the tyre. This kind of limiting device cannot adjust the gap with the tyre, and the limiting effect is general, resulting in serious wear of the limiting device and short service life.

[0006] The purpose of the utility model is to solve the problems that the existing tyre limiting device of the rotary kiln cannot adjust the gap with the tyre, the limiting effect is general, and the service life is short. Summary of the Utility Model

[0007] To solve the above problems, the utility model provides a connecting device between the rotary kiln barrel and the tyre, which comprises a rotary kiln barrel 1, a tyre 2 and a limiting device 3. The limiting device 3 is fixedly arranged on the rotary kiln barrel 1 and is uniformly arranged in a ring shape along the outer periphery of the rotary kiln barrel 1. The limiting device 3 comprises two limiting members 4 arranged oppositely on the left and right sides of the tyre 2. The limiting member 4 comprises a main backing plate 41 and a stop block 42. The main backing plate 41 is fixedly arranged on the rotary kiln barrel 1. The stop block 42 is arranged on the main backing plate 41 through an adjusting member 5 capable of adjusting the height of the stop block 42. The tyre 2 is sleeved on the rotary kiln barrel 1. An annular limiting ring 21 is arranged on the inner ring surface of the tyre 2. The limiting ring 21 is located between the stop blocks 42 of the two limiting members 4 of the limiting device 3.

[0008] The utility model arranges a plurality of limiting devices 3 along the outer periphery of the rotary kiln barrel 1. The limiting device 3 comprises two limiting members 4 arranged oppositely on the left and right sides of the tyre 2. A limiting ring 21 is arranged on the tyre 2. The limiting ring 21 is located between the stop blocks 42 of the two limiting members 4 of the limiting device 3. The tyre 2 can be limited by the stop blocks 42 to prevent relative displacement between the tyre 2 and the stop blocks 42. The stop block 42 is arranged on the main backing plate 41 through an adjusting member 5 capable of adjusting the height of the stop block 42. The height of the stop block 42 can be adjusted according to the size of the tyre 2 and the thermal expansion and contraction of the rotary kiln barrel 1, and the gap between the stop block 42 and the tyre 2 can be adjusted to be appropriate, so as to improve the limiting effect on the tyre 2 and extend the service life of the limiting device 3. It solves the problems that the gap between the limiting device 3 of the tyre 2 of the existing rotary kiln cannot be adjusted, the limiting effect is general, and the service life is short.

[0009] Preferably, the adjusting member 5 comprises an adjusting block 51 and an adjusting bolt 52. The adjusting block 51 is fixedly arranged on the main backing plate 41. An adjusting groove 511 extending radially along the rotary kiln barrel 1 is arranged on the top surface of the adjusting block 51. An adjusting hole 512 communicating with the adjusting groove 511 is arranged on the side surface of the adjusting block 51. A fixing block 421 is arranged on the stop block 42. The fixing block 421 is arranged in the adjusting groove 511. A plurality of fixing holes 422 are arranged at positions corresponding to the adjusting hole 512 on the fixing block 421. The plurality of fixing holes 422 are arranged and uniformly arranged radially along the rotary kiln barrel 1. The adjusting bolt 52 passes through the adjusting hole 512 and the fixing hole 422 to fixedly connect the adjusting block 51 and the stop block 42.

[0010] The utility model arranges an adjusting groove 511 on the top surface of the adjusting block 51, an adjusting hole 512 on the side surface, a fixing block 421 on the stop block 42, and a plurality of fixing holes 422 on the fixing block 421. The fixing block 421 is arranged in the adjusting groove 511. The depth of the fixing block 421 inserted into the adjusting groove 511 can be set as required. The adjusting bolt 52 passes through the adjusting hole 512 and the fixing hole 422 to fixedly connect the adjusting block 51 and the stop block 42, so as to adjust the gap between the stop block 42 and the tyre 2. It is not only convenient to adjust, but also has good firmness.

[0011] Preferably, the limiting device 3 further includes a secondary backing plate 31, which is fixedly arranged on the rotary kiln barrel 1 and is located between the main backing plates 41 of the two limit members 4 of the limiting device 3. Arranging the secondary backing plate 31 between the main backing plates 41 of the two limit members 4 of the limiting device 3 can prevent the limiting ring 21 on the tyre 2 from colliding with and rubbing against the rotary kiln barrel 1 when the rotary kiln barrel 1 rotates.

[0012] Preferably, the top surface of the stop block 42 is an arc surface. Setting the top surface of the stop block 42 as an arc surface can reduce the friction between the stop block 42 and the tyre 2 and extend the service life.

[0013] Preferably, a plurality of adjusting holes 512 are provided on the adjusting block 51, and the plurality of adjusting holes 512 are arranged radially along the rotary kiln barrel 1 and are evenly arranged. Arranging a plurality of adjusting holes 512 on the adjusting block 51 can use a plurality of adjusting bolts 52 to fix the adjusting block 51 and the stop block 42 at the same time, improving the support strength of the stop block 42.

[0014] Preferably, the main backing plate 41 and the secondary backing plate 31 are welded and fixed on the rotary kiln barrel 1, and the stop block 42 is welded and fixed on the main backing plate 41. Welding and fixing the main backing plate 41 and the secondary backing plate 31 on the rotary kiln barrel 1 and welding and fixing the stop block 42 on the main backing plate 41 can improve the firmness of the limiting device 3 and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 . Schematic diagram of the overall structure of the connecting device between the rotary kiln barrel and the tyre;

[0016] Figure 2 . Schematic diagram of the structure of the connecting device between the rotary kiln barrel and the tyre from another angle;

[0017] Figure 3 . Figure 2 Schematic diagram of the A-A section in ;

[0018] Figure 4 . Figure 3 Enlarged schematic diagram at B in ;

[0019] Figure 5 . Schematic diagram of the section of the connecting piece.

[0020] In the figure, 1. Rotary kiln barrel, 2. Tyre, 21. Limiting ring, 3. Limiting device, 31. Secondary backing plate, 4. Limit member, 41. Main backing plate, 42. Stop block, 421. Fixed block, 422. Fixed hole, 5. Adjusting member, 51. Adjusting block, 511. Adjusting groove, 512. Adjusting hole, 52. Adjusting bolt. DETAILED DESCRIPTION OF THE INVENTION

[0021] The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

[0022] As Figure 1 and Figure 2 shown, the rotary kiln cylinder and tyre connecting device includes a rotary kiln cylinder 1, a tyre 2 and a limiting device 3.

[0023] The limiting device 3 is fixedly arranged on the rotary kiln cylinder 1. There are a plurality of limiting devices 3, and the plurality of limiting devices 3 are evenly distributed in a ring along the outer circumference of the rotary kiln cylinder 1. The limiting device 3 includes two limiting members 4 oppositely arranged on the left and right sides of the tyre 2.

[0024] As Figure 2 and Figure 3 shown, the limiting member 4 includes a main backing plate 41 and a stop block 42. The main backing plate 41 is fixedly arranged on the rotary kiln cylinder 1, and the stop block 42 is arranged on the main backing plate 41 through an adjusting member 5 that can adjust the height of the stop block 42.

[0025] The tyre 2 is sleeved on the rotary kiln cylinder 1, and an annular limiting ring 21 is arranged on the inner ring surface of the tyre 2. The limiting ring 21 is located between the stop blocks 42 of the two limiting members 4 of the limiting device 3.

[0026] The top surface of the stop block 42 is an arc surface. The top surface of the stop block 42 refers to the side of the stop block 42 far from the rotary kiln cylinder 1. Setting the top surface of the stop block 42 as an arc surface can reduce the friction between the stop block 42 and the tyre 2 and extend the service life.

[0027] The present utility model can limit the tyre 2 through the stop block 42 to prevent relative displacement between the tyre 2 and the stop block 42. The stop block 42 is arranged on the main backing plate 41 through an adjusting member 5 that can adjust the height of the stop block 42. The height of the stop block 42 can be adjusted according to the size of the tyre 2 and the thermal expansion and contraction of the rotary kiln cylinder 1, and the gap between the stop block 42 and the tyre 2 can be adjusted to a suitable size, improving the limiting effect on the tyre 2 and extending the service life of the limiting device 3.

[0028] As Figure 3 、 Figure 4 and Figure 5 shown, the adjusting member 5 includes an adjusting block 51 and an adjusting bolt 52. The adjusting block 51 is fixedly arranged on the main backing plate 41. An adjusting groove 511 extending in the radial direction of the rotary kiln cylinder 1 is arranged on the top surface of the adjusting block 51, and a plurality of adjusting holes 512 communicating with the adjusting groove 511 are arranged on the side surface of the adjusting block 51. The plurality of adjusting holes 512 are arranged along the radial direction of the rotary kiln cylinder 1 and are evenly arranged.

[0029] A fixing block 421 is arranged on the stop block 42. The fixing block 421 is arranged in the adjusting groove 511. Multiple fixing holes 422 are arranged at positions corresponding to the adjusting holes 512 on the fixing block 421. The multiple fixing holes 422 are arranged radially along the rotary kiln cylinder 1 and are evenly arranged. The adjusting bolt 52 passes through the adjusting hole 512 and the fixing hole 422 to fixedly connect the adjusting block 51 and the stop block 42.

[0030] In the utility model, an adjusting groove 511 is arranged on the top surface of the adjusting block 51, multiple adjusting holes 512 are arranged on the side surface of the adjusting block 51, a fixing block 421 is arranged on the stop block 42, multiple fixing holes 422 are arranged on the fixing block 421, and the fixing block 421 is arranged in the adjusting groove 511. The depth of the fixing block 421 inserted into the adjusting groove 511 can be set as required. The adjusting bolt 52 passes through the adjusting hole 512 and the fixing hole 422 to fixedly connect the adjusting block 51 and the stop block 42, so as to adjust the gap between the stop block 42 and the tyre 2. Moreover, multiple adjusting bolts 52 can be used simultaneously to fix the adjusting block 51 and the stop block 42, improving the support strength of the stop block 42.

[0031] The limiting device 3 further includes a secondary backing plate 31. The secondary backing plate 31 is fixedly arranged on the rotary kiln cylinder 1 and is located between the main backing plates 41 of the two limit members 4 of the limiting device 3. Arranging the secondary backing plate 31 between the main backing plates 41 of the two limit members 4 of the limiting device 3 can prevent the limiting ring 21 on the tyre 2 from colliding and rubbing against the rotary kiln cylinder 1 when the rotary kiln cylinder 1 rotates.

[0032] The main backing plate 41 and the secondary backing plate 31 are welded and fixed on the rotary kiln cylinder 1, and the stop block 42 is welded and fixed on the main backing plate 41. Welding and fixing the main backing plate 41 and the secondary backing plate 31 on the rotary kiln cylinder 1 and welding and fixing the stop block 42 on the main backing plate 41 can improve the firmness of the limiting device 3 and extend the service life.

[0033] The utility model can limit the tyre 2 through the stop block 42 to prevent relative displacement between the tyre 2 and the stop block 42. The stop block 42 is arranged on the main backing plate 41 through an adjusting member 5 that can adjust the height of the stop block 42. The height of the stop block 42 can be adjusted according to the size of the tyre 2 and the thermal expansion and contraction of the rotary kiln cylinder 1, and the gap between the stop block 42 and the tyre 2 can be adjusted to a suitable size, improving the limiting effect on the tyre 2 and extending the service life of the limiting device 3.

[0034] By providing an adjustment groove 511 on the top surface of the adjustment block 51, an adjustment hole 512 on the side surface, a fixing block 421 on the stop block 42, a plurality of fixing holes 422 on the fixing block 421, and arranging the fixing block 421 in the adjustment groove 511, the depth of the insertion of the fixing block 421 into the adjustment groove 511 can be set as required. By passing an adjustment bolt 52 through the adjustment hole 512 and the fixing hole 422, the adjustment block 51 and the stop block 42 are fixedly connected, thereby adjusting the gap between the stop block 42 and the tyre 2. This is not only convenient for adjustment but also has good firmness.

[0035] By providing a secondary backing plate 31 between the main backing plates 41 of the two limit members 4 of the limit device 3, it is possible to prevent the collision and friction between the limit ring 21 on the tyre 2 and the rotary kiln shell 1 when the rotary kiln shell 1 rotates. Setting the top surface of the stop block 42 to be an arc surface can reduce the frictional force between the stop block 42 and the tyre 2 and extend the service life.

[0036] By providing a plurality of adjustment holes 512 on the adjustment block 51, a plurality of adjustment bolts 52 can be used simultaneously to fix the adjustment block 51 and the stop block 42, improving the support strength of the stop block 42. Welding and fixing the main backing plate 41 and the secondary backing plate 31 to the rotary kiln shell 1 and welding and fixing the stop block 42 to the main backing plate 41 can improve the firmness of the limit device 3 and extend the service life.

[0037] It should be noted that the above embodiments illustrate the present invention rather than limit the present invention, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims.

Claims

1. Rotary kiln cylinder and tyre connection device, characterized in that, It includes a rotary kiln cylinder body (1), tyre (2) and a limiting device (3). The limiting device (3) is fixedly arranged on the rotary kiln cylinder body (1), and a plurality of the limiting devices (3) are evenly arranged in a ring along the outer circumference of the rotary kiln cylinder body (1). The limiting device (3) includes two limiting members (4) oppositely arranged on the left and right sides of the tyre (2). The limiting member (4) includes a main backing plate (41) and a stop block (42). The main backing plate (41) is fixedly arranged on the rotary kiln cylinder body (1). The stop block (42) is arranged on the main backing plate (41) through an adjusting member (5) that can adjust the height of the stop block (42). The tyre (2) is sleeved on the rotary kiln cylinder body (1), and an annular limiting ring (21) is arranged on the inner ring surface of the tyre (2). The limiting ring (21) is located between the stop blocks (42) of the two limiting members (4) of the limiting device (3).

2. The rotary kiln cylinder and tyre connecting device according to claim 1, characterized in that The adjusting member (5) includes an adjusting block (51) and an adjusting bolt (52). The adjusting block (51) is fixedly arranged on the main backing plate (41). An adjusting groove (511) extending in the radial direction of the rotary kiln cylinder body (1) is arranged on the top surface of the adjusting block (51), and an adjusting hole (512) communicating with the adjusting groove (511) is arranged on the side surface of the adjusting block (51). A fixing block (421) is arranged on the stop block (42). The fixing block (421) is arranged in the adjusting groove (511), and a plurality of fixing holes (422) are arranged at positions corresponding to the adjusting holes (512) on the fixing block (421). The plurality of fixing holes (422) are arranged in the radial direction of the rotary kiln cylinder body (1) and are evenly arranged. The adjusting bolt (52) passes through the adjusting hole (512) and the fixing hole (422) to fixedly connect the adjusting block (51) and the stop block (42).

3. The rotary kiln cylinder and tyre connecting device according to claim 2, characterized in that, The limiting device (3) further includes a secondary backing plate (31). The secondary backing plate (31) is fixedly arranged on the rotary kiln cylinder body (1) and is located between the main backing plates (41) of the two limiting members (4) of the limiting device (3).

4. The connecting device between the rotary kiln cylinder and the tyre according to claim 3, characterized in that, The top surface of the stop block (42) is an arc surface.

5. The rotary kiln cylinder and tyre connection device according to claim 4, characterized in that, A plurality of adjusting holes (512) are arranged on the adjusting block (51). The plurality of adjusting holes (512) are arranged in the radial direction of the rotary kiln cylinder body (1) and are evenly arranged.

6. The connecting device between the rotary kiln cylinder and the tyre according to claim 5, characterized in that, The main backing plate (41) and the secondary backing plate (31) are fixedly welded on the rotary kiln cylinder body (1). The stop block (42) is fixedly welded on the main backing plate (41).

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