Rotary kiln inner wall cleaning device

Abstract

The utility model provides a rotary kiln inner wall cleaning device, which relates to the technical field of rotary kilns and comprises a central shaft, two ends of the central shaft are respectively provided with a support wheel, the middle of the central shaft is connected with at least one wall cleaning rake, and the wall cleaning rake is rotatably connected with the central shaft. Plowshares are arranged on the two sides of the wall cleaning rake in the direction of relative rotation with the central shaft. When in use, the rotary kiln inner wall cleaning device can be directly and integrally placed in the rotary kiln, and the whole device can be relatively fixed in the rotary kiln through the supporting wheels. When the rotary kiln rotates, the wall cleaning harrow and the center shaft can rotate relatively, so that a plowshare of the wall cleaning harrow can make contact with the inner wall of the rotary kiln and generate relative movement, and hardened materials on the inner wall of the rotary kiln can be broken through the plowshare. The plowshares are arranged on the two sides of the wall cleaning rake in the direction relative to the center shaft, hardened materials can be cleaned when the rotary kiln rotates forwards and backwards, the application range is wide, and continuous work can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotary kiln technical field especially is a rotary kiln inner wall cleaning device. BACKGROUND

[0002] A rotary kiln is an industrial device widely used in cement, metallurgy, chemical industry and other industries. The rotary kiln is mainly used for the calcination process of materials, for example, in cement production, it is used for calcining raw materials (mainly composed of limestone and clay) into cement clinker. The design of the rotary kiln allows the material to move slowly while being heated, ensuring uniform heating.

[0003] During the working process of the rotary kiln, the material is prone to hardening on the inner wall. This phenomenon can affect the uniformity of the product and also cause local overheating, affecting the service life of the equipment. In order to avoid the influence of the material hardening phenomenon on the rotary kiln, it is necessary to clean the hardened material regularly, which requires additional cleaning work and increases production costs. SUMMARY

[0004] The utility model discloses a rotary kiln inner wall cleaning device, which solves the problem of material hardening in the prior art.

[0005] The utility model provides a rotary kiln inner wall cleaning device, including center shaft, each of the both ends of center shaft is equipped with a support wheel, the middle part of center shaft is connected with at least one wall cleaning harrow, wall cleaning harrow is rotatably connected between center shaft, and the both sides of wall cleaning harrow in the direction of opposite rotation with center shaft are equipped with ploughshare.

[0006] In an optional embodiment, the wall cleaning harrow is also provided with a counterweight.

[0007] In an optional embodiment, the counterweight is arranged between the two ploughshares.

[0008] In an optional embodiment, the wall cleaning harrow is provided with a mounting groove, and the counterweight is detachably mounted in the mounting groove.

[0009] In an optional embodiment, the wall cleaning harrow further includes a baffle, the baffle is detachably connected with the mounting groove, and the mounting groove is sealed after the baffle is connected with the mounting groove.

[0010] In an optional embodiment, the wall cleaning harrow further includes a connecting rod, and the connecting rod is rotatably connected with the center shaft.

[0011] In an optional embodiment, a bearing is arranged between the connecting rod and the center shaft.

[0012] In an optional embodiment, the middle part of the center shaft is connected with at least two wall cleaning harrows, and the at least two wall cleaning harrows are densely arranged between the two support wheels.

[0013] In an optional embodiment, the middle part of the central shaft is connected with at least two wall cleaning rakes, and the at least two wall cleaning rakes are arranged in a spaced manner between the two supporting wheels.

[0014] In an optional embodiment, a material receiving cone is further included, and the material receiving cone is connected to the supporting wheel close to the rotary kiln door.

[0015] The rotary kiln inner wall cleaning device has the following beneficial effects:

[0016] The rotary kiln inner wall cleaning device can be directly put into the rotary kiln as a whole during use, and the supporting wheel can relatively fix the whole device in the rotary kiln.

[0017] The wall cleaning rake is provided with a plow head on both sides in the direction of relative rotation with the central shaft, which can not only increase the efficiency of cleaning the hardened material, but also be applicable to both forward rotation and reverse rotation of the rotary kiln, and can clean the hardened material during forward rotation and reverse rotation of the rotary kiln, and has a wide application range and can work continuously.

[0018] The device does not need additional power, and can clean the hardened material by relying on the rotation of the rotary kiln during work, and can work continuously during the work of the rotary kiln, has a simple overall structure, is convenient for cleaning the existing rotary kiln, and can be used in combination with the existing rotary kiln, solves the problem of hardened material of the rotary kiln, and has a wide application range. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0020] Fig. 1 The front structure schematic view of the rotary kiln inner wall cleaning device provided by the embodiments of the present application is shown in the figure.

[0021] Fig. 2 The side structure schematic view of the rotary kiln inner wall cleaning device provided by the embodiments of the present application is shown in the figure.

[0022] Fig. 3 The working state schematic view of the rotary kiln inner wall cleaning device provided by the embodiments of the present application is shown in the figure.

[0023] Icon: 1 - rotary kiln inner cavity; 2 - supporting wheel; 3 - central shaft; 4 - bearing; 5 - connecting rod; 6 - counterweight; 7 - wall cleaning rake; 8 - baffle; 9 - material receiving cone. DETAILED DESCRIPTION

[0024] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0026] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships in which the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0028] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0029] In the description of the utility model, still need to explain, unless another explicit provision and limitation, term "arrangement", "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication. For ordinary skilled in the art, the above-mentioned terms can be understood in the utility model according to specific circumstances concrete meaning.

[0030] Some embodiments of the utility model will be described in detail below in conjunction with the drawings. In the case of no conflict, the following examples and features in examples can be combined with each other.

[0031] As Figs. 1-3 The utility model discloses a rotary kiln inner wall cleaning device, including center shaft 3, the both ends of center shaft 3 are equipped with a support wheel 2, and the middle part of center shaft 3 is connected with at least one wall cleaning harrow 7, and the wall cleaning harrow 7 is rotatably connected with the center shaft 3, and the wall cleaning harrow 7 is equipped with a plowshare on both sides along the direction of relative rotation with the center shaft 3.

[0032] The rotary kiln inner wall cleaning device provided by the utility model embodiment has the following beneficial effects:

[0033] The rotary kiln inner wall cleaning device can be directly put into the rotary kiln as a whole when in use, and the support wheel 2 can fix the whole device in the rotary kiln relatively. When the rotary kiln rotates, the wall cleaning harrow 7 and the center shaft 3 can rotate relatively, so that the plowshare of the wall cleaning harrow 7 can contact the inner wall of the rotary kiln and move relatively, thereby the plowshare can break the hardened material in the inner wall of the rotary kiln.

[0034] The wall cleaning harrow 7 is equipped with a plowshare on both sides along the direction of relative rotation with the center shaft 3, which not only can increase the efficiency of cleaning the hardened material, but also can be suitable for the forward rotation and reverse rotation of the rotary kiln, and can clean the hardened material when the rotary kiln rotates forward and reversely, so that the application range is wide and the device can work continuously.

[0035] The device does not need additional power, and can clean the hardened material by relying on the rotation of the rotary kiln itself when working, and can work continuously during the working process of the rotary kiln, so that the whole structure is simple, the existing rotary kiln can be cleaned conveniently, and the device can be combined with the existing rotary kiln for use, so that the problem of the hardened material in the rotary kiln is solved, and the application range is wide.

[0036] As Fig. 3As shown, when the plow head of the wall cleaning rake 7 breaks the hardened material in the inner cavity 1 of the rotary kiln, the plow head can be carried by the hardened material relative to the movement, and the entire wall cleaning rake 7 can also rotate relative to the central shaft 3. At this time, the gravity of the wall cleaning rake 7 and the centripetal force generated during rotation can jointly act to further improve the breaking effect of the wall cleaning rake 7 on the hardened material.

[0037] In some embodiments, the supporting wheel 2 can be rotatably arranged in the inner cavity 1 of the rotary kiln, and when the rotary kiln rotates, the supporting wheel 2 rotates relative to the rotary kiln, and the device as a whole rotates. In some embodiments, the supporting wheel 2 can be fixedly arranged in the inner cavity 1 of the rotary kiln, and when the rotary kiln rotates, the supporting wheel 2 rotates together with the rotary kiln.

[0038] In some embodiments, as shown in Figs. 1-3 The wall cleaning rake 7 is also provided with a counterweight 6. Adding the counterweight 6 can increase the overall mass of the wall cleaning rake 7, and can improve the breaking effect of the wall cleaning rake 7 on the hardened material without changing the plow head.

[0039] In some embodiments, as shown in Figs. 1-3 The counterweight 6 is arranged between the two plow heads. The wall cleaning rake 7 is arranged symmetrically as a whole, which is suitable for both forward rotation and reverse rotation of the rotary kiln, and has wide adaptability.

[0040] In some embodiments, as shown in Figs. 1-3 The wall cleaning rake 7 is provided with a mounting groove, and the counterweight 6 is detachably mounted in the mounting groove. Thus, the specific weight of the counterweight 6 can be set according to the operation of the rotary kiln, the hardening of the material and other factors, and the counterweight 6 can also be replaced when these conditions change.

[0041] In some embodiments, as shown in Figs. 1-3 The wall cleaning rake 7 also includes a baffle 8, which is detachably connected with the mounting groove and seals the mounting groove after being connected with the mounting groove. After sealing the mounting groove, the material can be prevented from entering the mounting groove, which not only affects the weight of the wall cleaning rake 7, but also is difficult to clean. When the rotary kiln changes the material, the previous material entering the mounting groove can affect the operation of the rotary kiln after changing the material.

[0042] In some embodiments, as shown in Figs. 1-3 The wall cleaning rake 7 also includes a connecting rod 5, which is rotatably connected with the central shaft 3. Specifically, a bearing 4 can be arranged between the connecting rod 5 and the central shaft 3 to achieve the rotatable connection between the connecting rod 5 and the central shaft 3.

[0043] In some embodiments, as shown in Figs. 1-3As shown, the rotary kiln further comprises a material receiving cone 9 connected to the two supporting wheels 2 near the rotary kiln door. The material receiving cone 9 can be used for feeding materials, and the rotation of the rotary kiln will not affect the feeding.

[0044] In some embodiments, as shown in Fig. 1 The wall cleaning rake 7 is of an integrated structure, and the plough heads on both sides have multiple sawteeth. The integrated wall cleaning rake has higher overall structural strength and better durability, and is easier to clean the hard-bonded materials with high connection strength.

[0045] In some embodiments, as shown in Figs. 1-3 The central shaft 3 is connected with at least two wall cleaning rakes 7, and the multiple wall cleaning rakes 7 are used in combination. The wall cleaning rakes 7 used in combination have a wider range of application scenarios and are more flexible in use. The corresponding number of wall cleaning rakes can be selected according to the length of the rotary kiln for use in combination.

[0046] In some embodiments, as shown in Fig. 1 The at least two wall cleaning rakes 7 are densely arranged between the two supporting wheels 2. Thus, the hard-bonded materials on the inner cavity 1 of the rotary kiln between the two supporting wheels 2 can be cleaned, and the length and range of cleaning the hard-bonded materials are improved. At the same time, the densely arranged wall cleaning rakes 7 can be stressed in the axial direction of the central shaft 3, and the overall structural strength is also higher, making it easier to clean the hard-bonded materials with high connection strength.

[0047] In some embodiments, the at least two wall cleaning rakes are arranged at intervals between the two supporting wheels. The interval arrangement of multiple wall cleaning rakes can reduce the overall space occupied by the wall cleaning rakes, avoid excessive occupation of the inner cavity space of the rotary kiln, and ensure the production efficiency of the rotary kiln. The interval between the multiple wall cleaning rakes can be set according to actual needs, and can be arranged in a relatively dense or sparse manner according to the characteristics of the specific materials in the rotary kiln, and the setting is more flexible.

[0048] The hard-bonded materials on the inner wall of the rotary kiln generally extend along the length direction of the rotary kiln, i.e., the axial direction of the central shaft. Therefore, whether the wall cleaning rake is of an integrated structure or a split structure, whether the wall cleaning rakes are densely arranged or arranged at intervals, as long as the plough head of the wall cleaning rake has a sawtooth structure, the plough head can damage the corresponding hard-bonded materials, and the hard-bonded materials will be pulled along the axial direction of the central shaft, thereby removing a certain length of hard-bonded materials and playing a role in damaging the hard-bonded materials. Subsequently, the hard-bonded materials will fall off.

[0049] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for cleaning the inner wall of a rotary kiln, characterized in that, The center shaft (3) is provided with a support wheel (2) at each end, and at least one wall cleaning rake (7) is connected to the middle part of the center shaft (3) and rotatably connected between the center shaft (3) and the wall cleaning rake (7).

2. The rotary kiln inner wall cleaning device of claim 1, wherein, The wall cleaning rake (7) is further provided with a counterweight (6).

3. A device for cleaning the interior wall of a rotary kiln according to claim 2, characterized in that The counterweight (6) is arranged between the two plows.

4. The device of claim 3, wherein, The wall cleaning rake (7) is provided with a mounting groove, and the counterweight (6) is detachably mounted in the mounting groove.

5. A device for cleaning the interior wall of a rotary kiln according to claim 4, characterized in that The wall cleaning rake (7) further comprises a baffle (8) which is detachably connected with the mounting groove, and the baffle (8) seals the mounting groove after being connected with the mounting groove.

6. The device of claim 1, wherein, The wall cleaning rake (7) further comprises a connecting rod (5) which is rotatably connected with the center shaft (3).

7. A device as claimed in claim 6, wherein the device is adapted to be mounted on a robot arm. A bearing (4) is arranged between the connecting rod (5) and the center shaft (3).

8. The device of claim 1, wherein, The middle part of the center shaft (3) is connected with at least two wall cleaning rakes (7), and the at least two wall cleaning rakes (7) are densely arranged between the two support wheels (2).

9. The device of claim 1, wherein, The middle part of the center shaft (3) is connected with at least two wall cleaning rakes (7), and the at least two wall cleaning rakes (7) are arranged at intervals between the two support wheels (2).

10. The device of claim 1, wherein, Further comprising a material receiving cone (9) which is connected to the support wheel (2) near the rotary kiln cabin door.

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