A cement raw material separator guide vane mounting and fixing mechanism

Abstract

The utility model discloses a cement raw material powder concentrator guide vane mounting and fixing mechanism, including powder concentrator body and guide vane, be provided with rotating shaft on the guide vane, still include mounting bracket, the mounting bracket is installed on the powder concentrator body upper port, the mounting bracket is vertically provided with a plurality of lead screw shafts along its circumferential direction in proper order, the mounting bracket is lifted and is provided with the lifting seat through the lead screw shaft, the rotating seat is rotatably arranged on the lifting seat, and the lower end of the guide vane is arranged on the rotating seat, the upper end surface of mounting bracket is installed with the powder concentrator upper cover that is covered above the guide vane, and the rotating shaft extends to the outside through the powder concentrator upper cover, the utility model discloses a mounting bracket with lifting seat and rotating seat can be directly arranged on the rotating seat with the guide vane, not only can normal rotating work on the rotating seat, but also can be lifted and set through the mounting bracket, and the convenient loading and unloading maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of air classifier equipment components, specifically to a guide vane installation and fixing mechanism for a cement raw material air classifier. Background Technology

[0002] In cement raw material classifiers, guide vanes are key components. They are typically made of metal and are arranged at a specific angle around the inside of the classifier. Their function is crucial; during operation, they guide the airflow in a specific direction and trajectory, enabling the cement raw material entering the classifier to achieve more efficient grading and screening under the action of the airflow.

[0003] In the prior art, utility model patent CN202420375212.7 discloses a vertical roller mill classifier, including a grinding disc, grinding rollers, a feed pipe, a classifier assembly, a housing, and an air supply pipe. The grinding rollers are staggered on the grinding disc, each including an inner roller and an outer roller. The grinding disc has corresponding inner and outer grinding surfaces. The feed pipe is fixedly connected to the housing at its point of passing through it, and is inclined above the grinding disc. The classifier assembly is located directly above the grinding disc, and the air supply pipe is located below the grinding disc. Hot air supplied by the air supply pipe carries the ground material on the grinding disc upward through the housing to the classifier assembly. This vertical roller mill classifier uses different grinding rollers to handle materials of different particle sizes, which can greatly reduce equipment wear and achieve the goal of improving economic efficiency and production efficiency.

[0004] The air classifier component provided by the aforementioned patent is a guide vane structure. However, this guide vane structure is suspended and installed on the upper part of the air classifier by a rotating shaft. Not only is the installation troublesome, but when disassembly and maintenance are required, an overhead crane is also needed for auxiliary operation, which makes loading and unloading troublesome. Utility Model Content

[0005] The purpose of this utility model is to provide a guide vane installation and fixing mechanism for a cement raw material classifier, which aims to improve the problem that the guide vane structure of the existing classifier is suspended and installed on the upper end of the classifier by a rotating shaft, resulting in inconvenience in installation and disassembly.

[0006] This utility model is implemented as follows: A guide vane mounting and fixing mechanism for a cement raw material classifier includes a classifier body and guide vanes. A rotating shaft is provided on the guide vanes. The mechanism also includes a mounting frame, which is installed on the upper port of the classifier body. Multiple lead screw shafts are arranged vertically along the circumference of the mounting frame. A lifting seat is provided inside the mounting frame via the lead screw shafts. A rotating seat is rotatably mounted on the lifting seat. The lower end of the guide vane rests on the rotating seat. A classifier cover covering the guide vanes is installed on the upper surface of the mounting frame. The rotating shaft extends through the classifier cover to the outside.

[0007] Preferably, the mounting frame is provided with a first mounting plate, a connecting rod and a second mounting plate from top to bottom; the first mounting plate and the second mounting plate are fixedly connected by the connecting rod; a plurality of first mounting bolts are arranged sequentially on the upper surface of the first mounting plate along its circumference, and the lower surface of the first mounting plate is mounted on the upper surface of the classifier body by the first mounting bolts.

[0008] Preferably, it also includes a controller; a plurality of lead screws are arranged sequentially along the circumferential direction between the first mounting plate and the second mounting plate, and the upper ends of the plurality of lead screws are all provided with motors through the first mounting plate; the plurality of motors are all electrically connected to the controller.

[0009] Preferably, the first mounting plate covers and sits on the upper port of the air classifier body; the second mounting plate and the connecting rod extend into the air classifier body and do not contact the inner wall of the air classifier body.

[0010] Preferably, the lifting seat includes a threaded sleeve, and the side of the lifting seat is provided with a matching threaded sleeve corresponding to the position of each lead screw shaft, and the threaded sleeve is respectively fitted on the corresponding lead screw shaft.

[0011] Preferably, the upper end face of the lifting seat is provided with a rotating groove, and a plurality of rotating steel balls are sequentially embedded in the rotating groove along its circumference. The lower end of the rotating seat is rotatably disposed in the rotating groove by the rotating steel balls.

[0012] Preferably, the rotating seat includes a settling groove, the upper end surface of the rotating seat is provided with a settling groove that is adapted to the lower end of the guide blade, and the lower end of the guide blade is set in the settling groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by setting a mounting frame with a lifting seat and a rotating seat, allows the guide vanes to be easily placed directly on the rotating seat. Not only can they rotate normally on the rotating seat, but they can also be raised and lowered by the mounting frame, which facilitates loading, unloading and maintenance.

[0015] 2. This utility model supports the guide vanes by setting up an installation frame, which can support the lower end of the guide vanes and ensure that the guide vanes are stably installed and will not sink or fall off. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the assembly structure of the mounting bracket and guide vanes of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the mounting bracket of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the lifting seat and rotating seat of this utility model;

[0021] Figure 6 This is a cross-sectional structural diagram of the lifting seat and rotating seat of this utility model;

[0022] Figure 7 This is a three-dimensional structural diagram of the guide vane of this utility model.

[0023] In the diagram: 1. Air classifier body; 2. Mounting frame; 201. First mounting plate; 202. Connecting rod; 203. Second mounting plate; 204. Lead screw shaft; 205. Motor; 206. First mounting bolt; 207. Controller; 3. Air classifier top cover; 4. Lifting seat; 401. Threaded sleeve; 402. Rotating groove; 403. Rotating steel ball; 5. Rotating seat; 501. Sealing groove; 6. Guide vane; 601. Rotating shaft. Detailed implementation method:

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0026] Example 1

[0027] like Figures 1-4 and Figure 7 As shown, a guide vane mounting and fixing mechanism for a cement raw material classifier includes a classifier body 1 and guide vanes 6. A rotating shaft 601 is mounted on the guide vanes 6. The mechanism also includes a mounting frame 2, which is mounted on the upper end of the classifier body 1. Multiple lead screw shafts 204 are vertically arranged along the circumference of the mounting frame 2. From top to bottom, the mounting frame 2 is provided with a first mounting plate 201, a connecting rod 202, and a second mounting plate 203. The first mounting plate 201 and the second mounting plate 203 are fixedly connected by the connecting rod 202. Multiple first mounting bolts 206 are arranged along the circumference of the upper end face of the first mounting plate 201. The lower end face of the first mounting plate 201 is mounted on the upper end face of the classifier body 1 by the first mounting bolts 206. The first mounting plate 201 covers and sits on the upper end of the classifier body 1. The second mounting plate 203 and the connecting rod 202 extend into the interior of the classifier body 1 but do not contact the inner wall of the classifier body 1. Both the first mounting plate 201 and the second mounting plate 203 are annular structures. The guide vane 6 can be raised and lowered in the first mounting plate 201 via the lifting seat 4. The mounting frame 2 is installed on the upper port of the classifier body 1 via the first mounting plate 201. A sealing strip is provided at the contact point between the first mounting plate 201 and the classifier body 1 to ensure the sealing of the connection.

[0028] like Figure 2 , Figure 4 and Figure 5As shown, the system also includes a controller 207; multiple lead screw shafts 204 are sequentially arranged along the circumference between the first mounting plate 201 and the second mounting plate 203, and motors 205 are mounted on the upper ends of the multiple lead screw shafts 204, all of which pass through the first mounting plate 201; the multiple motors 205 are all electrically connected to the controller 207. The controller 207 controls the multiple motors 205 through a central processing unit (CPU), designating one of the multiple motors as the master motor and the others as slave motors. The CPU mainly directly controls the master motor, monitoring its operating status in real time, such as position and speed. Then, based on the master motor's status, it calculates the state that the slave motors should reach through software algorithms and sends corresponding control commands to the slave motor drivers, causing the slave motors to follow the movement of the master motor. A lifting seat 4 is mounted inside the mounting frame 2 via a lead screw shaft 204. A rotating seat 5 is rotatably mounted on the lifting seat 4. The lifting seat 4 includes a threaded sleeve 401. Corresponding threaded sleeves 401 are fitted onto the sides of the lifting seat 4, each corresponding to a position on a lead screw shaft 204. Synchronous rotation of multiple lead screw shafts 204 controls the lifting of the lifting seat 4, which in turn drives the rotating seat 5 within the mounting frame 2, thereby causing the guide vanes 6 to move within the mounting frame 2. When using the guide vanes 6, they can be lowered into the air classifier body 1 for rotation. When maintenance is required, the guide vanes 6 can be raised to the outside of the air classifier body 1 for easy access. Alternatively, when installing the guide vanes 6, they can be directly placed on the rotating seat 5, and then the lifting seat 4 can be lowered to reinstall the air classifier top cover 3.

[0029] like Figures 5-7 As shown, the upper surface of the lifting seat 4 has a rotating groove 402, in which several rotating steel balls 403 are sequentially embedded along its circumference. The lower end of the rotating seat 5 is rotatably positioned in the rotating groove 402 via the rotating steel balls 403. The rotating seat 5 rotates via the rotating steel balls 403, and the lower end of the guide blade 6 rests on the rotating seat 5; this not only supports the lower end of the guide blade but also does not affect the normal rotation of the guide blade 6. The rotating seat 5 includes a settling groove 501, and the upper surface of the rotating seat 5 has a settling groove 501 that matches the lower end of the guide blade 6. The lower end of the guide blade 6 rests in the settling groove 501. By placing the guide blade 6 in the settling groove 501, misalignment and detachment of the guide blade 6 can be prevented. The upper surface of the mounting frame 2 is fitted with a classifier cover 3 that covers the guide blade 6, and the rotating shaft 601 extends through the classifier cover 3 to the outside. The classifier cover 3 is installed on the first mounting plate 201 by bolts and sealing strips. It can block and seal the inner hole of the first mounting plate 201, and connect to the external fan through the classifier cover 3, so that the classifier can work normally.

[0030] Example 2

[0031] like Figures 1-4 and Figure 7 As shown, a guide vane mounting and fixing mechanism for a cement raw material classifier includes a classifier body 1 and guide vanes 6. A rotating shaft 601 is mounted on the guide vanes 6. The mechanism also includes a mounting frame 2, which is mounted on the upper end of the classifier body 1. Multiple lead screw shafts 204 are vertically arranged along the circumference of the mounting frame 2. From top to bottom, the mounting frame 2 is provided with a first mounting plate 201, a connecting rod 202, and a second mounting plate 203. The first mounting plate 201 and the second mounting plate 203 are fixedly connected by the connecting rod 202. Multiple first mounting bolts 206 are arranged along the circumference of the upper end face of the first mounting plate 201. The lower end face of the first mounting plate 201 is mounted on the upper end face of the classifier body 1 by the first mounting bolts 206. The first mounting plate 201 covers and sits on the upper end of the classifier body 1. The second mounting plate 203 and the connecting rod 202 extend into the interior of the classifier body 1 but do not contact the inner wall of the classifier body 1.

[0032] like Figure 2 , Figure 4 and Figure 5 As shown, the system also includes a controller 207; multiple lead screw shafts 204 are sequentially arranged along the circumference between the first mounting plate 201 and the second mounting plate 203, and motors 205 are installed at the upper ends of the multiple lead screw shafts 204 through the first mounting plate 201; the multiple motors 205 are all electrically connected to the controller 207. A lifting seat 4 is provided in the mounting frame 2 for lifting via the lead screw shafts 204, and a rotating seat 5 is rotatably provided on the lifting seat 4. The lifting seat 4 includes threaded sleeves 401, and the sides of the lifting seat 4 are provided with corresponding threaded sleeves 401 corresponding to the positions of each lead screw shaft 204. The threaded sleeves 401 are respectively fitted onto the corresponding lead screw shafts 204.

[0033] like Figures 5-7 As shown, the upper surface of the lifting seat 4 has a rotating groove 402, and several rotating steel balls 403 are sequentially embedded in the rotating groove 402 along its circumference. The lower end of the rotating seat 5 is rotatably mounted in the rotating groove 402 via the rotating steel balls 403. The lower end of the guide vane 6 is mounted on the rotating seat 5; the rotating seat 5 includes a mounting groove 501, and the upper surface of the rotating seat 5 is provided with a mounting groove 501 that matches the lower end of the guide vane 6. The lower end of the guide vane 6 is mounted in the mounting groove 501. The upper surface of the mounting frame 2 is equipped with a classifier cover 3 that covers the guide vane 6, and the rotating shaft 601 extends through the classifier cover 3 to the outside.

[0034] The working principle of this utility model is as follows: By synchronously rotating multiple lead screw shafts 204, the lifting seat 4 can be raised and lowered, thereby driving the rotating seat 5 on the lifting seat 4 to rise and fall in the mounting frame 2, so that the guide blade 6 is placed on the rotating seat 5. Then, the lifting seat 4 is controlled to descend to a suitable position, and the classifier cover 3 can be reinstalled, and the guide blade 6 can be used normally. The guide blade 6 is supported by the rotating seat 5, which can prevent the guide blade 6 from sinking. When maintenance is required, the classifier cover 3 can be removed, and then the guide blade 6 can be raised to the outside of the classifier body 1 through the lifting seat 4 for maintenance.

[0035] In summary, by providing a mounting frame 2 with a lifting seat 4 and a rotating seat 5, this utility model allows the guide vane 6 to be conveniently placed directly on the rotating seat 5. This not only allows for normal rotation on the rotating seat 5 but also enables lifting and lowering via the mounting frame 2, facilitating installation, removal, and maintenance. Furthermore, by supporting the guide vane 6 with the mounting frame 2, the lower end of the guide vane 6 is supported, ensuring stable installation and preventing it from sinking or falling off.

[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A guide vane mounting and fixing mechanism for a cement raw material classifier, comprising a classifier body (1) and guide vanes (6), wherein a rotating shaft (601) is provided on the guide vanes (6), characterized in that, It also includes a mounting frame (2), which is installed on the upper port of the air classifier body (1); a plurality of lead screw shafts (204) are arranged vertically along its circumference on the mounting frame (2); a lifting seat (4) is provided inside the mounting frame (2) through the lead screw shafts (204); a rotating seat (5) is rotatably provided on the lifting seat (4); the lower end of the guide vane (6) is placed on the rotating seat (5); an air classifier cover (3) covering the guide vane (6) is installed on the upper end face of the mounting frame (2); and the rotating shaft (601) extends through the air classifier cover (3) to the outside.

2. The guide vane installation and fixing mechanism for a cement raw material classifier according to claim 1, characterized in that, The mounting frame (2) is provided with a first mounting plate (201), a connecting rod (202), and a second mounting plate (203) from top to bottom; the first mounting plate (201) and the second mounting plate (203) are fixedly connected by the connecting rod (202); a plurality of first mounting bolts (206) are arranged sequentially along the circumferential direction on the upper end surface of the first mounting plate (201), and the lower end surface of the first mounting plate (201) is mounted on the upper end surface of the air classifier body (1) by the first mounting bolts (206).

3. The guide vane installation and fixing mechanism for a cement raw material classifier according to claim 2, characterized in that, It also includes a controller (207); a plurality of lead screw shafts (204) are arranged sequentially between the first mounting plate (201) and the second mounting plate (203) along their circumferential direction, and the upper ends of the plurality of lead screw shafts (204) are all provided with motors (205) through the first mounting plate (201); the plurality of motors (205) are all electrically connected to the controller (207).

4. The guide vane installation and fixing mechanism for a cement raw material classifier according to claim 2, characterized in that, The first mounting plate (201) covers the upper port of the classifier body (1); the second mounting plate (203) and the connecting rod (202) extend into the interior of the classifier body (1) without contacting the inner wall of the classifier body (1).

5. The guide vane installation and fixing mechanism for a cement raw material classifier according to claim 1, characterized in that, The lifting seat (4) includes a threaded sleeve (401). The side of the lifting seat (4) is provided with a matching threaded sleeve (401) corresponding to the position of each lead screw shaft (204). The threaded sleeve (401) is respectively fitted on the corresponding lead screw shaft (204).

6. The guide vane installation and fixing mechanism for a cement raw material classifier according to claim 1, characterized in that, The upper end face of the lifting seat (4) is provided with a rotating groove (402), and a number of rotating steel balls (403) are sequentially embedded in the rotating groove (402) along its circumferential direction. The lower end of the rotating seat (5) is rotatably set in the rotating groove (402) by the rotating steel balls (403).

7. The guide vane installation and fixing mechanism for a cement raw material classifier according to claim 1, characterized in that, The rotating seat (5) includes a settling groove (501). The upper end surface of the rotating seat (5) is provided with a settling groove (501) that is adapted to the lower end of the guide blade (6). The lower end of the guide blade (6) is set in the settling groove (501).

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