Catalyst calcination apparatus

Abstract

The application provides a catalyst calcination device, which comprises a furnace body, a base mounted at the bottom of the furnace body, a guide sliding rail of the furnace body extending along the axial direction and penetrating to an output end, a base sliding rail arranged in parallel along the axial direction on the upper surface of the base, an axial telescopic mechanism movably connected between the guide sliding rail of the furnace body and the base sliding rail, a gear transmission assembly arranged at the input end of the furnace body, and a driving unit in transmission connection with the gear transmission assembly through a universal joint. The axial telescopic mechanism is cooperatively designed with the gear transmission system driven by the universal joint, the axis offset generated by the lifting of the furnace body is automatically compensated through the cross shaft type universal joint, the continuous meshing design of the involute gear pair is matched, the adaptive adjustment of the transmission angle is ensured, and the problem of transmission interruption caused by the movement interference of the traditional device is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of rotary roasting furnaces, and more particularly to a catalyst roasting device. Background Technology

[0002] A rotary roasting furnace is a key thermal equipment mainly used for high-temperature roasting of powdered or filter cake materials to achieve process objectives such as activation, crystal transformation, oxidation, and pyrolysis. Its working principle is based on the slow rotation and tilting design of the furnace body, which allows the material to be heated evenly and move forward within the furnace. Simultaneously, the high-temperature gas flow generated by fuel combustion at the furnace head comes into counter-current contact with the material, ensuring efficient heat exchange.

[0003] In practical applications, changing the tilt angle of the furnace body can control the speed of material movement inside the furnace, but it requires stopping the machine for adjustment. After adjusting the tilt angle of the furnace body, the gear transmission system needs to be adjusted to make the gear transmission system fully meshed, which is time-consuming, labor-intensive, and will interrupt the production process. Utility Model Content

[0004] The purpose of this invention is to solve the problem of transmission interruption caused by motion interference when the tilt angle of a rotary roasting furnace is changed in the prior art.

[0005] To achieve the above objectives, this application proposes a catalyst calcination apparatus, comprising:

[0006] Furnace body;

[0007] A base that is fixedly installed at the bottom of the furnace body;

[0008] A furnace body guide rail that extends along the furnace body axis and extends through to the output end;

[0009] Base slide rails are arranged parallel to each other along the axial direction on the upper surface of the base;

[0010] An axial telescopic mechanism that connects the furnace body guide rail and the base rail;

[0011] A gear transmission assembly is installed at the input end of the furnace body;

[0012] Drive unit that forms a transmission connection with gear transmission assembly through universal coupling.

[0013] The catalyst roasting device of this application innovatively adopts a collaborative design of axial telescopic mechanism and universal coupling driven gear transmission system. While realizing the combined vertical lifting and rotation of the furnace body, the universal coupling automatically compensates for the axial offset caused by the lifting of the furnace body. Combined with the continuous meshing design of the involute gear pair, it ensures adaptive adjustment of the transmission angle, effectively solving the problem of transmission interruption caused by motion interference in traditional devices.

[0014] Furthermore, in order to reduce the friction between the furnace body guide rail and the axial telescopic mechanism, the furnace body guide rail and the piston output end of the axial telescopic mechanism are rotatably connected by a ball joint; the inner wall of the furnace body guide rail is symmetrically provided with bidirectional linear grooves, and each groove is fitted with a guide assembly composed of sliding bearings; the outer ring of the sliding bearing forms a clearance fit with the groove, and the inner ring forms a rolling contact with the piston rod of the axial telescopic mechanism.

[0015] Furthermore, to reduce the friction between the piston output end of the axial telescopic mechanism and the bearing housing assembly, the piston output end of the axial telescopic mechanism is pivotally connected to a sliding bearing via the bearing housing assembly.

[0016] Furthermore, in order to achieve the rotation of the furnace body, the gear transmission assembly includes: a main drive gear connected to the output shaft of the universal coupling via a spline; and an annular driven gear fixedly fitted on the outer wall of the furnace body; the main drive gear and the annular driven gear form an external meshing transmission pair, and the meshing tooth profile is an involute cylindrical gear.

[0017] Furthermore, in order to support the main drive gear, a support column is vertically arranged on the end face of the main drive gear away from the universal coupling; a Y-shaped support assembly is arranged between the support column and the base, the Y-shaped support assembly including: a support rod vertically fixed to the base; a main U-shaped bracket connected to the top of the support rod by bolts; the main U-shaped bracket surrounds the support column.

[0018] Furthermore, in order to achieve dynamic adaptation and multi-point stable support for the support column, the Y-shaped support assembly also includes: a support shaft symmetrically arranged on the inner wall of the main U-shaped bracket; a secondary U-shaped bracket that is slidably inserted with the support shaft; and an arc-shaped support surface at the open end of the secondary U-shaped bracket that is adapted to the outer diameter of the support column.

[0019] The beneficial effects of this application are as follows:

[0020] 1. The catalyst roasting device of this application innovatively adopts a collaborative design of axial telescopic mechanism and universal coupling driven gear transmission system. While realizing the combined vertical lifting and rotation of the furnace body, the universal coupling automatically compensates for the axial offset caused by the lifting of the furnace body. Combined with the continuous meshing design of involute gear pair, it ensures adaptive adjustment of transmission angle, effectively solving the problem of transmission interruption caused by motion interference in traditional devices.

[0021] 2. The ball joint and the double-groove sliding bearing of this application constitute a low-friction guiding mechanism, and the bearing seat assembly realizes a pivot connection, reducing the friction between the telescopic device and the furnace body when the furnace body changes its tilt angle.

[0022] 3. The Y-shaped support assembly of this application forms a dynamic adaptive support system through the sliding plug-in structure of the main and auxiliary U-shaped frames and the arc-shaped support surface design. Combined with the positioning mechanism of the support column, it improves the load-bearing capacity of the equipment.

[0023] 4. The sliding plug-in structure of the main and auxiliary U-shaped frames in this application enables quick assembly and disassembly, and allows for quick replacement after the auxiliary U-shaped frame wears out. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a catalyst calcination apparatus according to an embodiment of this application;

[0026] Figure 2 for Figure 1 Enlarged view of point a in the middle;

[0027] Figure 3 This is a cross-sectional view of a catalyst calcination apparatus according to an embodiment of this application;

[0028] Figure 4 for Figure 3 Enlarged view of point a in the middle;

[0029] Figure 5 This is a diagram showing the fit between the furnace body guide rail and the axial telescopic mechanism in an embodiment of this application.

[0030] Figure 6 This is a diagram showing the fit between the Y-shaped support component and the support column in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Furnace body;

[0033] 2. Base;

[0034] 3. Furnace body guide rail; 311. Bidirectional linear slide rail; 312. Sliding bearing; 313. Bearing housing assembly;

[0035] 4. Base slide rail;

[0036] 5. Axial telescopic mechanism;

[0037] 6. Gear transmission assembly; 61. Main drive gear; 62. Ring driven gear;

[0038] 7. Drive unit;

[0039] 8. Universal coupling;

[0040] 9. Support columns;

[0041] 10. Y-shaped support assembly; 101. Support pole; 102. Main U-shaped bracket; 103. Support shaft; 104. Secondary U-shaped bracket. Detailed Implementation

[0042] The following will be combined with the appendix Figures 1-6 The embodiments of the technical solutions of this application are described in detail below. The following embodiments are only used to more clearly illustrate the technical solutions of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other. Specific implementation method one:

[0044] like Figures 1-6 This application illustrates a catalyst roasting apparatus. To achieve adaptive transmission compensation, i.e., to realize the composite control of axial displacement and rotational motion of the furnace body 1, the two motion modes can be performed synchronously without interference. This application provides a slide rail and an axial telescopic mechanism between the base 1 and the furnace body 2. When the axial telescopic mechanism 5 drives the furnace body 1 to move axially up and down along the furnace body guide slide rail 3, the universal coupling 8 automatically compensates for the axial offset of the furnace body 1 through its cross-shaft structure. Specifically, the input end of the universal coupling 8 is connected to the output shaft of the drive unit 7 via a spline, and the output end is rigidly connected to the main drive gear 61 shaft of the gear transmission assembly 6 via a flange. The main drive gear 61 is connected to the output end of the universal coupling 8. When the furnace body 1 undergoes axial displacement, the fork-shaped joints at both ends of the cross shaft achieve angular deflection through a spherical pair, thereby ensuring that the rotational torque output by the drive unit 7 is continuously transmitted to the gear transmission assembly 6.

[0045] Specifically, the drive unit 7 is mounted on the base 2. The output end of the drive unit 7 is connected to the gear transmission assembly via a universal coupling 8. The output end of the universal coupling 8 is connected to the main drive gear 61, and the other end of the main drive gear 61 is supported by a Y-shaped support assembly 10. The annular driven gear 62 is welded to the surface of the furnace body 1 and meshes with the main drive gear 61. When the main drive gear 61 rotates after being powered by the drive unit 7 and the universal coupling 8, it drives the annular driven gear 62 to rotate. Since the annular driven gear 62 is welded to the surface of the furnace body 1, it drives the furnace body 1 to rotate synchronously, thereby agitating the material.

[0046] The end of the furnace body 1 closest to the drive device is the discharge end, and the end furthest from the drive device is the feed end. When the material is added into the furnace body 1 through the feed port set at the feed end, the drive unit 7 starts to work, thereby driving the furnace body 1 to rotate. At this time, the material inside the furnace body 1 is stirred and, under the influence of its own force, gradually moves to the discharge end along the downward tilt of the furnace body 1, and is discharged from the furnace body 1 after roasting.

[0047] Furthermore, when the tilt angle of the furnace body 1 is finely adjusted, the angle of the meshing end face of the gear transmission assembly 6 can be changed simply by rotating the universal coupling 8. When the tilt angle of the furnace body 1 is adjusted to a larger value, a corresponding telescopic mechanism can be set between the drive unit 7 and the base 2 to raise or lower the horizontal position of the drive unit 7. The base of the drive unit 7 is directly mounted on the top surface of the telescopic mechanism. When the telescopic mechanism is raised or lowered, it drives the entire drive unit 7 to move synchronously, thereby changing the position of the gear meshing surface.

[0048] The gear transmission assembly 6 adopts an involute cylindrical gear pair design, and the meshing tooth surfaces of the main drive gear 61 and the ring driven gear 62 are precision ground. This design allows the gear pair to maintain continuous meshing even when the axis of the furnace body 1 is offset. The principle lies in the meshing characteristics of the involute tooth profile: when the center distance between the two gears changes slightly, the meshing point slides along the involute of the tooth surface, while the meshing angle remains basically stable.

[0049] Furthermore, the axial telescopic mechanism 5 can slide in the base slide rail 4 and the furnace body guide slide rail 3 to adjust the support position, thereby changing the contact point between the telescopic mechanism 5 and the furnace body 1. When the telescopic mechanism 5 is closer to the gear transmission assembly 4, the extension of the telescopic mechanism 5 can raise the furnace body 1 higher. Similarly, when the telescopic mechanism 5 is further away from the gear transmission assembly 4, the extension of the telescopic mechanism 5 can raise the furnace body 1 lower.

[0050] Specifically, the coordinated operation of the axial telescopic mechanism 5 and the universal coupling 8 is the key technology of this system. When the furnace body 1 needs to adjust its tilt angle, the hydraulic cylinder piston rod of the telescopic mechanism 5 pushes the furnace body 1 to move along the furnace body guide rail 3. At this time, the universal coupling 8 eliminates the influence of the furnace body 1's axial misalignment on the transmission chain through angle compensation. For example, when the furnace body 1 is raised, the input end and output end of the universal coupling 8 form an angle, but the gear pair can still maintain meshing, thereby avoiding the gear disengagement phenomenon caused by the displacement of the furnace body 1 in traditional designs.

[0051] In addition, the support structure of the gear transmission assembly 6 also participates in the coordinated work. The main drive gear 61 is connected to the Y-type support assembly 10 through the support column 9. When the furnace body 1 is axially displaced, the support column 9 produces a small sliding on the arc-shaped support surface of the secondary U-shaped bracket 104. This sliding is converted into low-friction rolling motion through the copper-based graphite composite bushing, thereby avoiding the support system from applying additional load to the gear transmission. Specific Implementation Method Two:

[0053] like Figures 1-6 This illustration depicts a catalyst roasting apparatus according to this application. To achieve a low-friction guiding mechanism, this mechanism reduces frictional resistance during the axial movement of the furnace body 1 by optimizing the kinematic pair type of the contact interface. A bidirectional linear groove 311 on the inner wall of the furnace body guide rail 3 and a sliding bearing 312 constitute a rolling guiding system. The sliding bearing 312 is made of GCr15 bearing steel, with a chrome-plated outer ring surface to improve wear resistance, and an annular oil groove on the inner ring surface to store grease. The clearance between the bearing outer ring and the groove 311 is optimized to ensure free rolling of the bearing while preventing furnace body 1 from shaking due to excessive clearance.

[0054] The introduction of the ball joint further reduces the frictional resistance of the moving parts. This joint consists of a ball head rod, a ball head seat, and a dust cover. The ball head rod is threaded to the piston rod of the axial telescopic mechanism 5, and the ball head seat is welded to the bottom of the furnace body guide rail 3. When the furnace body 1 changes its tilt angle, the ball joint achieves multi-directional rotation through spherical contact.

[0055] Specifically, the collaborative operation of the sliding bearing 312 and the ball joint is the core technology of this mechanism. When the axial telescopic mechanism 5 drives the furnace body 1 to move axially, the inner ring of the sliding bearing 312 forms rolling contact with the piston rod, while the outer ring performs pure rolling motion within the groove 311. This design significantly reduces the coefficient of friction. At the same time, the ball joint disperses the lateral force generated by the change in the tilt angle of the furnace body 1 through spherical contact, preventing the piston rod from bearing bending stress.

[0056] Furthermore, the precision machining of the bearing housing assembly 313 also plays a crucial role. The bearing housing assembly 313 employs a split design, with the upper and lower halves connected by bolts, and its inner bore forming an interference fit with the outer ring of the sliding bearing 312. This design ensures both the installation accuracy of the bearing and facilitates future maintenance and replacement. Specific implementation method three:

[0058] like Figures 1-6This illustration depicts a catalyst roasting apparatus according to this application. To achieve a dynamic support and stability system, the system utilizes an elastic-rigid hybrid support structure to achieve dynamic stability during the axial movement of the furnace body 1. The main U-shaped support 102 and the secondary U-shaped support 104 of the Y-shaped support assembly 10 are connected by a sliding insertion structure, forming a three-point support for the support column 9. The main U-shaped support 102 is welded from Q345B steel plate, with two support shafts 103 symmetrically arranged on its inner sidewall. The secondary U-shaped support 104 is connected to the support shafts 103 via linear bearings, enabling axial floating. The open end of the secondary U-shaped support 104 is provided with an arc-shaped support surface, which forms line contact with the outer diameter of the support column 9.

[0059] Specifically, the coordinated operation of the main U-shaped support 102 and the secondary U-shaped support 104 is the key technology of this system. When the furnace body 1 moves axially, the support column 9 applies a radial force to the secondary U-shaped support 104. This force is converted into an axial component along the support axis 103 through the arc-shaped support surface, driving the secondary U-shaped support 104 to float. This design enables the support system to be adaptive, automatically compensating for changes in the support point position caused by the axial displacement of the furnace body 1.

[0060] In the description of the embodiments of this application, the technical terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0061] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "set," "equipped with," "connected," and "installed" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A catalyst calcination apparatus, characterized in that, include: Furnace body (1); A base (2) is fixedly installed at the bottom of the furnace body (1); A furnace body guide rail (3) extends axially along the furnace body (1) and extends through to the output end. Base slide rails (4) are arranged parallel to the upper surface of the base (2) along the axial direction; An axial telescopic mechanism (5) is movably connected between the furnace body guide rail (3) and the base rail (4); Gear transmission assembly (6) is installed at the input end of the furnace body (1); The drive unit (7) is connected to the gear transmission assembly (6) via a universal coupling (8).

2. The catalyst calcination apparatus according to claim 1, characterized in that, The furnace body guide slide rail (3) and the piston output end of the axial telescopic mechanism (5) are rotatably connected by a ball joint; the inner wall of the furnace body guide slide rail (3) is symmetrically provided with bidirectional linear slide grooves (311), and each slide groove is fitted with a guide assembly composed of sliding bearings (312); the outer ring of the sliding bearing (312) forms a clearance fit with the slide groove (311), and the inner ring forms a rolling contact with the piston rod of the axial telescopic mechanism (5).

3. The catalyst calcination apparatus according to claim 2, characterized in that, The piston output end of the axial telescopic mechanism (5) is pivotally connected to the sliding bearing (312) via the bearing seat assembly (313).

4. The catalyst calcination apparatus according to claim 1, characterized in that, The gear transmission assembly (6) includes: a main drive gear (61) connected to the output shaft of the universal coupling (8) via a spline; and an annular driven gear (62) fixedly mounted on the outer wall of the furnace body (1); the main drive gear (61) and the annular driven gear (62) form an external meshing transmission pair, and the meshing tooth profile is an involute cylindrical gear.

5. The catalyst calcination apparatus according to claim 4, characterized in that, The main drive gear (61) is vertically provided with a support column (9) on the end face away from the universal coupling (8); a Y-shaped support assembly (10) is provided between the support column (9) and the base (2), the Y-shaped support assembly (10) includes: a support rod (101) vertically fixed to the base (2); a main U-shaped bracket (102) connected to the top of the support rod (101) by bolts; the main U-shaped bracket (102) surrounds the support column (9).

6. The catalyst calcination apparatus according to claim 5, characterized in that, The Y-shaped support assembly (10) further includes: a support shaft (103) symmetrically arranged on the inner wall of the main U-shaped bracket (102); a secondary U-shaped bracket (104) that is slidably inserted with the support shaft (103); and the open end of the secondary U-shaped bracket (104) forms an arc-shaped support surface that is adapted to the outer diameter of the support column (9).

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