JP3607558B2 - Rotary kiln rotational state measuring device - Google Patents

Description

【００５５】
また、サポーティングブロック６の外径とタイヤ７の内径との径差の実測値から逆算された周方向のずれの長さと、このずれの長さの実測値との間には、５ｍｍの差が生じている。これは、ロータリキルン３の支点でのタイヤ７およびシェル２間におけるミグレーションの不均一が大きな理由として考えられる。
【００５６】
この試験結果に、さらにシェル２の捻れ状態などに関する詳細なデータを交えることにより、サポーティングブロック６の転動に関してのより詳細な挙動を知ることができる。
【００５７】
したがって、本実施形態によれば、ロータリキルン３が稼働している状態においてサポーティングブロック６の外径とタイヤ７の内径との径差およびシェル２とタイヤ７との周方向のずれの長さを、実測値で、かつ同時に測定することができるため、シェルのオーバリティおよびミグレーションが正常な状態にあるか否かを正確かつ迅速に把握することができる。
【００５８】
なお、本発明は前記実施形態のものに限定されるものではなく、必要に応じて種々変更することが可能である。
【００５９】
例えば、前記実施形態においては、前記回転状態測定装置１１をタイヤ７の側面に固定していたが、これに限る必要はなく、タイヤ７側面への直接取付けが不可能な場合は、回転状態測定装置１１の側面とローラ軸に延長器具を取り付けるようにしてもよい。
【００６０】
また、前記移動板１７のシェル２側への移動量を測定する移動量測定手段としてゲージ２２を用いており、また、ローラ２１の回転角度を測定する回転角度測定手段２８として指示板２９を用いているが、これに限る必要はなく、例えば、前記移動板１７の移動量および前記ローラ２１の回転角度をデジタルセンサによって測定するようにしてもよい。
【００６１】
さらに、前記移動板１７のシェル２側の先端部に、前記ローラ２１の替わりにマグネット板を設け、シェルに密着したマグネット板とベルトの伸びから、シェル２とタイヤ７との周方向のずれの長さを測定するようにしてもよい。
【００６２】
また、ローラ２１と指示板２９とを共に移動板１７に設けて両者が一定間隔を保持した状態で一緒に移動するように形成してもよい。
【００６３】
【発明の効果】
以上述べたように本発明の請求項１に係るロータリキルンの回転状態測定装置によれば、クリアランスおよびミグレーションが正常な状態にあるか否かを正確かつ迅速に把握することができる。
【００６４】
請求項２に係るロータリキルンの回転状態測定装置によれば、請求項１に係るロータリキルンの回転状態測定装置の効果に加えて、さらに簡易な構成によって移動板の移動量を測定することができる。
【００６５】
請求項３に係るロータリキルンの回転状態測定装置によれば、請求項１または請求項２に係るロータリキルンの回転状態測定装置の効果に加えて、さらに簡易な構成によってローラの回転角度を測定することができる。
【図面の簡単な説明】
【図１】本発明に係るロータリキルンの回転状態測定装置の実施形態を示す斜視図
【図２】本発明に係るロータリキルンの回転状態測定装置の実施形態を示す正面図
【図３】本発明に係るロータリキルンの回転状態測定装置の実施形態を示す側面図
【図４】本発明に係るロータリキルンの回転状態測定装置の実施形態において、ハンドルを示す側面図
【図５】本発明に係るロータリキルンの回転状態測定装置の実施形態において、回転状態測定装置をタイヤの側面に固定した状態を示す図
【図６】従来のロータリキルン装置を示す側面図
【図７】図６のＡ−Ａ線に沿った断面図
【図８】図７のＢ部の拡大図
【符号の説明】
１ 耐火れんが
２ シェル
３ ロータリキルン
６ サポーティングブロック
７ タイヤ
１１ 回転状態測定装置
１２ 基盤
１７ 移動板
２１ ローラ
２２ ゲージ
２８ 回転角度測定手段[0001]
[Industrial application fields]
The present invention relates to a rotary kiln rotational state measuring device, and in particular, a difference between an outer diameter of a supporting block disposed on an outer peripheral surface of a shell and an inner diameter of a tire provided on the outer periphery of the shell, and The present invention relates to a rotary kiln rotational state measuring apparatus suitable for ascertaining whether or not a rotational difference between a shell and the tire is normally maintained.
[0002]
[Prior art]
Conventionally, a rotary kiln generally used in a cement manufacturing process or the like is formed as shown in FIGS.
[0003]
That is, in the cement manufacturing process, a rotary kiln 3 formed by surrounding a long shell 2 around the outer periphery of a refractory brick 1 assembled in a cylindrical shape is rotatably provided, and is installed at one end of the shell 2. While the shell 2 is rotated at a predetermined speed by the driving device 4, a predetermined cement is supplied into the rotary kiln 3 to perform a predetermined process such as firing.
[0004]
The refractory brick 1 is fixed in the shell 2 by pressing the force to spread outward by the tight force between the shells 2, and no adhesive or the like is used. Further, an annular tire 7 is provided on the outer peripheral surface of the shell 2 via a plurality of supporting blocks 6 so as to have a predetermined interval in the axial direction of the shell 2, and each tire 7 is placed on a support base 8. A pair of receiving rollers 9 are rotatably supported. Since the outer diameter of the shell 2 increases due to thermal expansion, the outer diameter of the supporting block 6 welded and fixed to the shell 2 is smaller than the inner diameter of the tire 7 as shown exaggeratedly in the figure. Both are formed to rotate relative to each other.
[0005]
When the shell 2 is driven to rotate at a predetermined speed by the rotation driving device 4 with the predetermined cement supplied to the rotary kiln 3, the tire 7 receives the rotation of the shell 2 via the supporting block 6. Driven together. At this time, due to the difference in diameter (clearance) between the outer diameter of the supporting block 6 of the shell 2 and the inner diameter of the tire 7, the supporting block 6 of the shell 2 slightly rolls on the inner surface of the tire 7. A difference in rotation (migration phenomenon) occurs between them.
[0006]
This rotational difference (migration phenomenon) is not a problem when it occurs in a normal state, but if an abnormality occurs in the rotational difference (migration phenomenon), the power consumption of the rotary kiln 3 increases, the supporting block 6 and the tire. 7 not only causes abnormal wear, but also causes pulsation of rotation of the rotary kiln 3, increased load, irregular deformation of the cross section of the shell 2, and the like.
[0007]
In general, since the shell 2 is less rigid than the tire 7, during operation of the rotary kiln device, the shell 2 is crushed downward by the load of the raw material combustion material inside the shell 2, and the cross section has an elliptical shape. It has become. This is referred to as the rotary kiln 3's overflow. Abnormality of the rotational difference (migration phenomenon) leads to deterioration of this overlap, and secondary damage such as breakage or dropping of the refractory brick 1 or fatigue cracks due to repeated shell 2. Invite disability.
[0008]
Furthermore, the diameter difference (clearance) between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 has a correlation with the overflow, and as the diameter difference increases, the tendency of the increase also increases. For this reason, the diameter difference (clearance) affects the refractory brick 1 disposed on the inner peripheral surface of the shell 2.
[0009]
When the rotation difference (migration phenomenon) is normal, the rolling of the supporting block 6 occurs little by little on average when the rotary kiln 3 makes one rotation. Theoretically, when the rotary kiln 3 makes one rotation, the positions of the shell 2 and the tire 7 are rotated by the length of “diameter difference between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 × circumferential ratio”. It is designed to shift in the direction. The difference between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 is the largest at the top of the rotary kiln 3. The difference in diameter at the uppermost part of the rotary kiln 3 is called a top clearance, and the length of the circumferential displacement (rolling distance) is called a slip width.
[0010]
By calculating backward the difference between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 from the length of the deviation, it is possible to grasp whether the clearance between the supporting block 6 and the tire 7 is properly held. It has become.
[0011]
At present, in order to grasp the clearance, the contact distance between the supporting block 6 and the tire 7 is marked using a heat-resistant chalk or the like, and the rolling distance between the supporting block 6 and the tire 7 for each rotation. One gauge is installed on each side of the tire 7 and the circumferential direction of the shell 2 in the vicinity of the tire 7, and the rotation between the tire 7 and the supporting block 6 is rotated every rotation from these time differences. A method of measuring the moving distance, that is, the length of the circumferential displacement is employed.
[0012]
[Problems to be solved by the invention]
However, the above-described method merely calculates the diameter difference between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 from the calculation formula. The actual diameter difference is the resistance or shell between the supporting block 6 and the tire 7. Since a condition such as irregular deformation of one section is added, it does not necessarily match the numerical value calculated by the above method.
[0013]
In addition, there is a method in which the difference between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 is directly measured with a gauge while the operation of the rotary kiln 3 is stopped manually. Since the conditions such as heat and load at the time are completely ignored, the rotational state cannot be measured accurately.
[0014]
For this reason, since the diameter difference between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 and the length of the circumferential displacement between the shell 2 and the tire 7 during the operation of the rotary kiln 3 cannot be measured accurately, There has been a problem that it is impossible to accurately grasp whether or not the overlap and the migration are in a normal state.
[0015]
The present invention has been made in view of such problems, and in the state where the rotary kiln is operating, the difference between the outer diameter of the supporting block and the inner diameter of the tire and the length of the circumferential displacement between the shell and the tire. It is an object to provide a rotary kiln rotational state measuring device capable of accurately and quickly grasping whether or not shell overlap and migration are in a normal state by simultaneously measuring the measured values and actual values. It is what.
[0016]
[Means for Solving the Problems]
In order to achieve the above object, the rotary kiln rotational state measuring device according to claim 1 of the present invention is characterized in that a base that is detachable is provided on the side of the tire, and the base is provided with a shell by a biasing force toward the shell. A moving plate is provided that is movable to the side, and a roller that is slidably contacted with the outer peripheral surface of the shell via the biasing force is provided at an end of the moving plate on the shell side with the outer peripheral surface of the shell. A movement amount measuring means for measuring the movement amount of the moving plate to the shell side and a rotation angle measuring means for measuring the rotation angle of the roller are provided.
[0017]
And by adopting such a configuration, the difference between the outer diameter of the supporting block and the inner diameter of the tire is measured by measuring the amount of movement of the moving plate to the shell side during one rotation of the rotary kiln. At the same time, the length of the circumferential displacement between the shell and the tire is measured by measuring the rotation angle of the roller during one rotation of the rotary kiln. Therefore, it is possible to accurately and quickly grasp whether the shell is over and the migration is in a normal state.
[0018]
The rotary kiln rotational state measuring device according to claim 2 is characterized in that, in claim 1, the movement amount measuring means is configured to apply a contact force to the shell side by the moving plate when the moving plate moves to the shell side. The point is that it consists of a gauge that increases the scale value.
[0019]
By adopting such a configuration, the difference in diameter between the outer diameter of the supporting block and the inner diameter of the tire can be accurately measured with a simple configuration.
[0020]
The rotary kiln rotational state measuring method according to claim 3 is characterized in that, in claim 1 or claim 2, the rotational angle measuring means is a disk-shaped member that increases the scale value instructed to the base in accordance with the rotational angle. The indicator plate is rotatably arranged, and a transmission belt for transmitting the rotation of the roller to the indicator plate is wound around the rotation shaft of the roller and the outer periphery of the indicator plate.
[0021]
And by adopting such a configuration, the rotational difference between the shell and the tire can be accurately measured with a simple configuration.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a rotary kiln rotational state measuring apparatus according to the present invention will be described below with reference to FIGS. 1 to 5. Note that portions having the same or similar basic configuration as those of the related art will be described using the same reference numerals.
[0023]
As shown in FIGS. 1 and 2, the rotary kiln rotational state measuring device 11 in this embodiment has a base 12 having a substantially rectangular front surface. An engagement plate 13 that engages with the inner peripheral surface of the tire 7 is extended at a right angle at the upper end portion of the base 12 in FIG. 1, and the engagement plate 13 is hooked on the inner peripheral surface of the tire 7. The base 12 is engaged with the inner peripheral surface of the tire 7. Further, a pair of side plate portions 14 are formed at both left and right ends of the base 12 in FIG. 1 so as to extend in the opposite direction to the engagement plate 13. A pair of magnets 16 for fixing the base 12 to the side surface of the tire 7 are disposed on the side plate portion 14 at a predetermined interval in the vertical direction. The base 12 is fixed to the side surface of the tire 7 by the magnetic force of each magnet 16.
[0024]
The base 12 has a moving plate 17 elongated in the vertical direction in FIG. 1, that is, in the radial direction of the shell 2, and the moving plate 17 is moved in the vertical direction by a plurality of support members 18. It is supported freely.
[0025]
A biasing member 19 such as a coil spring for biasing the moving plate 17 upward in FIG. 1, that is, the shell 2 side is fixed to the uppermost support member 18 in FIG. The lower end portion of the urging member 19 is fixed to the moving plate 17.
[0026]
A disc-shaped roller 21 is rotatably disposed at the upper end of the moving plate 17, that is, the end on the shell 2 side, and the roller 21 receives the biasing force of the biasing member 19. The outer peripheral surface of the shell 2 can be slidably contacted. In addition, when the roller 21 is displaced in the circumferential direction between the tire 7 and the shell 2 during operation of the rotary kiln 3, the roller 21 has the length of the displacement due to friction with the inner peripheral surface of the tire 7. It is designed to rotate by the corresponding angle.
[0027]
A gauge 22 as a moving amount measuring means for measuring the moving amount of the moving plate 17 toward the shell 2 is provided on the base 12 at a position corresponding to the lower portion of the moving plate 17.
[0028]
The gauge 22 has a display plate 23 in the vicinity of the moving plate 17 that is parallel to the moving plate 17 and has a scale (not shown) indicating the amount of movement of the moving plate 17. The display plate 23 is formed with a long long hole 24 along the vertical direction, that is, the moving direction of the moving plate 17. In the long hole 24, a pair of instruction portions 25 for indicating the scale is disposed movably along the long hole 24.
[0029]
In addition, as shown in FIG. 3, the indicating portion 25 penetrates the shaft portion of the screw-type member 25a inward through the elongated hole, and holds the penetrating shaft portion with a nut-type member 25b. The head of the member 25a (the part indicating the scale) is formed so as to be biased toward the head by a biasing force of a biasing member 25c such as a coil spring. Therefore, since the indicating portion 25 can hold the stationary position in the long hole 24 unless an external force is applied, the moving amount of the moving plate 17 can be correctly indicated.
[0030]
An abutting plate that moves the indicating portion 25 to the shell 2 side by contacting the upper indicating portion 25 of the pair of indicating portions 25 at a position corresponding to the gauge 22 of the moving plate 17. 27 is formed. Since the contact plate 27 moves integrally with the moving plate 17, the indicating portion 25 moves to the shell 2 side by the same distance as the moving plate 17. Therefore, the gauge 22 can measure the amount of movement of the moving plate 17 toward the shell 2.
[0031]
Since the contact plate 27 applies only the contact force to the shell 2 side to the instruction portion 25, the instruction portion 25 once moved to the shell 2 side is returned to the original position by the contact plate 27. There is nothing. Further, the lower instruction unit 25 may be used, for example, for zero point correction.
[0032]
On the base 12, rotation angle measuring means 28 for measuring the rotation angle of the roller 21 is provided.
[0033]
The rotation angle measuring means 28 has a disk-shaped indicator plate 29 that is rotatably supported by the base 12. The indicator plate 29 indicates a scale value 30 corresponding to the rotation angle of the indicator plate 29 with an arrow 31. Around the outer peripheral surface of the indicating plate 29 and the outer periphery of the rotating shaft 21a of the roller 21, a transmission belt 33 having heat resistance and stretchability for transmitting the rotation of the roller 21 to the indicating plate 29 is wound. Accordingly, since the indicator plate 29 rotates by an angle corresponding to the rotation angle of the roller 21, the indicator plate 29 can indicate the rotation angle of the roller 21.
[0034]
A handle 34 for holding the rotational state measuring device 11 when the rotational state measuring device 11 is attached to or detached from the tire 7 is attached to the base 12 via the both side plate portions 14. As shown in FIG. 4, the handle 34 includes a long side portion 35a parallel to the base 12 and a pair of short side portions 35b extending at right angles from both ends of the long side portion 35a to the shell 2 side. A U-shaped grip portion 35 is provided, and an opening 36 is formed in one of the short side portions 35b.
[0035]
A locking member 38 that locks the swing of the movable plate 17 when the rotational state measuring device 11 is attached / detached is disposed inside the grip portion 35. The locking member 38 has an L-shaped arm portion 39, and a corner portion of the arm portion 39 is rotatably supported by, for example, a hinge 40 on the inner side surface of the long side portion 35a. Yes. A locking claw 41 is formed at one end of the arm portion 39 toward the gap between the base 12 and the moving plate 17. The other end portion of the arm portion 39 is penetrated to the outside of the grip portion 35 through the opening 36 formed in the short side portion 35b. The penetrated other end portion is, for example, a coil spring or the like. The urging member 42 is urged toward the base 12 side.
[0036]
The locking claw 41 is urged in a direction away from the movable plate 17 by the urging member 42 in a normal state. When the user grasps the locking member 38 together with the grip portion 35 when attaching / detaching the rotational state measuring device 11, the arm portion 39 rotates in a direction against the biasing force of the biasing member 42, and A locking claw 41 is fitted in the gap between the base 12 and the moving plate 17. Therefore, the movable plate 17 can be locked when the rotational state measuring device 11 is attached or detached. It should be noted that other known mechanisms can be used as the mechanism for locking the movable plate 17.
[0037]
In addition, the gauge 22 is provided with a U-shaped stopper 44 for preventing the indicator 25 from swinging when the rotary kiln 3 is not in operation. The stopper 44 is configured to lock the swinging of the indicating portions 25 by holding the pair of indicating portions 25 together. Further, a ring 45 for removing the stopper 44 is connected to the stopper 44 via a string 46, and the stopper 44 is pulled by pulling the string 46 with a finger passing through the ring 45. The instruction unit 25 can be easily detached.
[0038]
Next, the operation of this embodiment will be described.
[0039]
First, the rotation state measuring device 11 is fixed to the side surfaces of the rotary kiln 3 and the tire 7 that are rotating first. That is, as shown in FIG. 5, at the bottom of the rotary kiln 3 and the tire 7, the engagement plate 13 of the rotational state measuring device 11 is inserted between the supporting blocks 6 and at the same time, the base 12 is fixed by the magnet 16.
[0040]
When fixed in this manner, the roller 21 disposed on the moving plate 17 comes into contact with the outer peripheral surface of the shell 2 via the biasing force of the biasing member 19, and the movement plate 17 moves on the shell 2 side. Accordingly, when the roller 21 and the indicator plate 29 are separated from each other, the transmission belt 33 that couples the roller 21 and the instruction plate 29 extends.
[0041]
As the tire 7 rotates, the rotation state measuring device 11 fixed to the side surface of the tire 7 moves integrally with the tire 7.
[0042]
While the rotary kiln 3 is in operation, the moving plate 17 moves to the shell 2 side by the urging force of the urging member 19 at a location where the diameter difference between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 increases. At this time, the abutting plate 27 formed on the moving plate 17 moves to the shell 2 side with the movement of the moving plate 17, and the indicating portion 25 of the gauge 22 is brought into contact with the indicating portion 25. Is moved toward the shell 2, that is, in the direction in which the indicated scale value increases.
[0043]
Thereby, the moving amount of the moving plate 17, that is, the maximum value of the diameter difference between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 (usually a top clearance) can be actually measured.
[0044]
Further, when a circumferential displacement occurs between the shell 2 and the tire 7 during the operation of the rotary kiln 3, the roller 21 depends on the length of the displacement due to friction with the outer peripheral surface of the shell 2. Rotate at an angle. The rotation of the roller 21 is transmitted to the indicator plate 29 via the transmission belt 33, and the indicator plate 29 rotates at an angle corresponding to the rotation of the roller 21 to indicate the scale value 30.
[0045]
Thereby, the length of the shift | offset | difference of the circumferential direction which arises in the shell 2 and the tire 7 can be measured.
[0046]
Note that the movement of the moving plate 17 and the rotation of the roller 21 both occur during the operation of the rotary kiln 3, so that an actual measurement of the diameter difference between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 is possible. In addition, the actual measurement of the length of deviation between the shell 2 and the tire 7 can be performed simultaneously.
[0047]
In addition, after the rotary kiln 3 completes one rotation, the handle 34 is gripped and the rotational state measuring device 11 is removed from the side surface of the tire 7. At this time, the rotary kiln 3 is moved by the locking claw 41 of the locking member 38. Since the swing of the plate 17 can be locked, the numerical value fluctuation of the gauge 22 due to the swing of the moving plate 17 can be prevented.
[0049]
On the contrary, the migration is maintained normally by comparing the length of the deviation calculated from the measured value of the diameter difference between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 with the measured deviation length. It can be confirmed whether or not.
[0050]
Next, a description will be given of an evaluation test of shell overlay and migration performed using the rotation state measuring device 11 in the present embodiment.
[0051]
In this test, a rotary kiln apparatus having a total length of 72 m, a fulcrum number of 3 fulcrums, and an inner diameter of the tire 7 of 3.5 m was used. Then, by the rotary kiln apparatus, actually measuring the length in the circumferential direction of the deviation between the diameter difference and the tire 7 and the shell 2 between the outer diameter and the tire 7 the inner diameter of the supporting block 6, the actual Hakachi the theoretically calculated values And compared.
[0052]
The results are shown in Table 1 below.
[0053]
[Table 1]

[0055]
Further, there is a difference of 5 mm between the circumferential deviation length calculated from the measured diameter difference between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 and the measured deviation length. Has occurred. This is considered to be because the unevenness of migration between the tire 7 and the shell 2 at the fulcrum of the rotary kiln 3 is large.
[0056]
By adding detailed data on the twisted state of the shell 2 and the like to this test result, it is possible to know more detailed behavior regarding the rolling of the supporting block 6.
[0057]
Therefore, according to the present embodiment, when the rotary kiln 3 is in operation, the difference between the outer diameter of the supporting block 6 and the inner diameter of the tire 7 and the length of the circumferential displacement between the shell 2 and the tire 7 are determined. Since the measured values can be measured at the same time, it is possible to accurately and quickly grasp whether the shell is in the normal state and the migration is normal.
[0058]
In addition, this invention is not limited to the thing of the said embodiment, A various change is possible as needed.
[0059]
For example, in the above embodiment, the rotational state measuring device 11 is fixed to the side surface of the tire 7. However, the present invention is not limited to this, and when the direct attachment to the side surface of the tire 7 is impossible, the rotational state measurement is performed. An extension device may be attached to the side surface of the apparatus 11 and the roller shaft.
[0060]
A gauge 22 is used as a moving amount measuring means for measuring the moving amount of the moving plate 17 toward the shell 2, and an indicator plate 29 is used as the rotating angle measuring means 28 for measuring the rotating angle of the roller 21. However, the present invention is not limited to this. For example, the movement amount of the movable plate 17 and the rotation angle of the roller 21 may be measured by a digital sensor.
[0061]
Further, a magnet plate is provided in place of the roller 21 at the tip of the moving plate 17 on the shell 2 side, and the circumferential displacement between the shell 2 and the tire 7 is caused by the extension of the magnet plate and belt which are in close contact with the shell. The length may be measured.
[0062]
Alternatively, both the roller 21 and the instruction plate 29 may be provided on the moving plate 17 so that both move together while maintaining a constant interval.
[0063]
【The invention's effect】
As described above, according to the rotary kiln rotational state measuring apparatus of the first aspect of the present invention, it is possible to accurately and quickly grasp whether or not the clearance and the migration are in a normal state.
[0064]
According to the rotary kiln rotational state measuring device according to claim 2, in addition to the effect of the rotary kiln rotational state measuring device according to claim 1, the moving amount of the movable plate can be measured with a simpler configuration. .
[0065]
According to the rotary kiln rotational state measuring device according to claim 3, in addition to the effect of the rotary kiln rotational state measuring device according to claim 1 or 2, the rotational angle of the roller is measured with a simpler configuration. be able to.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a rotary kiln rotational state measuring apparatus according to the present invention. FIG. 2 is a front view showing an embodiment of a rotary kiln rotational state measuring apparatus according to the present invention. FIG. 4 is a side view showing an embodiment of a rotary kiln rotational state measuring apparatus according to the present invention. FIG. 4 is a side view showing a handle in an embodiment of the rotary kiln rotational state measuring apparatus according to the present invention. FIG. 6 is a view showing a state in which the rotational state measuring device is fixed to the side surface of the tire in the embodiment of the rotational state measuring device of the kiln. FIG. 6 is a side view showing a conventional rotary kiln device. [Fig. 8] Enlarged view of part B in Fig. 7 [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Refractory brick 2 Shell 3 Rotary kiln 6 Supporting block 7 Tire 11 Rotation state measuring device 12 Base 17 Moving plate 21 Roller 22 Gauge 28 Rotation angle measurement means

Claims (3)

A rotary kiln having a shell around the outer periphery of a refractory brick assembled in a cylindrical shape is rotatably arranged, and an annular tire can be driven and rotated on the outer periphery of the shell via a supporting block. In the rotary kiln rotational state measuring device for measuring the rotational state of the shell and the tire in a circumferential rotary kiln device,
A base that can be attached to and detached from the side surface of the tire is provided, and a moving plate that is movable to the shell side by an urging force to the shell side is provided on the base, and an end of the moving plate on the shell side is provided. A roller that is slidably brought into sliding contact with the outer peripheral surface of the shell through the biasing force is rotatably disposed by friction with the outer peripheral surface of the shell, and moves for measuring the amount of movement of the moving plate to the shell side An apparatus for measuring the rotational state of a rotary kiln, comprising: an amount measuring means; and a rotational angle measuring means for measuring a rotational angle of the roller. 2. The moving amount measuring means comprises a gauge that increases a scale value by receiving a contact force of the moving plate toward the shell side when the moving plate moves toward the shell side. The rotary kiln rotational state measuring device as described. The rotation angle measuring means rotatably arranges a disk-shaped instruction plate for increasing a scale value instructed according to the rotation angle on the base, and on the rotation shaft of the roller and the outer periphery of the instruction plate. The rotary kiln rotational state measuring device according to claim 1 or 2, wherein a rotation belt for transmitting the rotation of the roller to the indicator plate is wound.

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