Alumina high-temperature calcination production high-temperature furnace

Abstract

The utility model relates to alumina processing equipment technical field, and disclose a kind of high-temperature furnace for alumina high-temperature calcination production, including rotary furnace, the base of being installed in rotary furnace bottom, the top inside and bottom inside of rotary furnace are respectively equipped with burner mechanism, processing box, the front end of processing box has the box door that can reciprocating open and close, and the front end of rotary furnace has reciprocating open and close and aligns with the heat-insulating box door of processing box.The utility model is formed after the rotary furnace main body combination use of the first gear, I-shaped gear shaft, positioning sleeve plate and second gear, clutch servo motor, coolant tank, two heat conduction disc and transmission shaft, burner mechanism, base and rotary furnace being set, can provide the accurate power of multistage meshing rotation to processing box in rotary furnace, transmission shaft outside, can also carry out timely heat conduction heat dissipation treatment to the waste heat exported by transmission shaft, sufficiently guarantee the service life of each component in meshing transmission mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of alumina processing equipment, specifically a high-temperature furnace for high-temperature calcination production of alumina. Background Technology

[0002] Alumina is an inorganic compound with the chemical formula Al₂O₃. It is a high-hardness compound with a melting point of 2054℃ and a boiling point of 2980℃. It is an ionic crystal that can ionize at high temperatures and is commonly used in the manufacture of refractory materials. Currently, the rapid development of my country's electrolytic aluminum, ceramics, pharmaceutical, electronics, and machinery industries means that the market demand for alumina still has significant room for growth, and alumina production will continue to increase. Therefore, alumina production equipment still needs further improvement in terms of quality and production efficiency.

[0003] The patent application with application number CN202323270479.4 proposes "a rotary furnace for high-temperature calcination of alumina, comprising: a support and a motor; the support is connected to a furnace body; the furnace body is equipped with a processing box and a pulverized coal burner; the processing box is connected to a rotating shaft; one end of the rotating shaft is equipped with a fixed plate, a connecting plate, and a limiting rod; one end of the motor is equipped with a driving gear; one side of the motor is equipped with a driven gear, a rotating column, and a fixed sleeve; one end of the rotating column is equipped with a support plate and a fixed rod; the beneficial effect is that the motor, driving gear, and driven gear drive the rotating column to rotate inside the fixed sleeve, causing the support plate to drive the fixed rod to rotate, thereby driving the fixed plate to rotate through the meshing of the fixed rod and the limiting rod, and finally driving the processing box to rotate inside the furnace body through the rotating shaft, so that the alumina raw material is evenly turned inside the processing box, thereby achieving uniform heating and calcination of the alumina raw material and improving calcination efficiency."

[0004] From the perspective of the transmission structure of the existing technology, although the meshing of the fixed rod and the limiting rod can drive the fixed plate to rotate, the connection between the fixed rod and the limiting rod is a point contact connection, and the gap between adjacent structures is relatively large. In the actual transmission process, the processing box will experience large reciprocating vibrations, which will have a significant adverse impact on the normal operation of the overall equipment. Secondly, during actual processing, some of the heat from the furnace body will be dissipated through the rotating shaft. If heat is not dissipated in time, in addition to causing safety hazards, it will also have an adverse impact on the service life of related components. Utility Model Content

[0005] This invention provides a high-temperature furnace for high-temperature calcination of alumina, which solves the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a high-temperature furnace for high-temperature calcination of alumina, including a rotary furnace and a base installed at the bottom of the rotary furnace. A burner mechanism and a processing box are respectively installed inside the top and bottom of the rotary furnace. The front end of the processing box has a door that can be reciprocated and opened and closed, and the front end of the rotary furnace has a heat-insulated door that can be reciprocated and opened and aligned with the processing box. Both sides of the processing box are equipped with drive shafts that are fitted with the rotary furnace. One end of one of the drive shafts extends to the outside of the rotary furnace and is connected to a first gear.

[0007] One side of the base is provided with an I-shaped gear shaft, a coolant tank, and a meshing output component. The I-shaped gear shaft is located between the first gear and the meshing output component and meshes synchronously with the output structure of the meshing output component and the first gear. The middle part of the I-shaped gear shaft is fitted with a positioning sleeve plate installed on the inner wall of the bottom of the coolant tank through a bearing. The surfaces at both ends of the I-shaped gear shaft are equipped with heat-conducting plates that are movably fitted inside the coolant tank.

[0008] Preferably, the meshing output component includes a second gear and a brake servo motor. The output end of the brake servo motor is connected to the middle of the second gear for transmission. The second gear, as the output structure of the meshing output component, meshes with the end of the I-shaped gear shaft away from the rotary kiln. A fixing seat is installed between the housing surface of the brake servo motor and the top surface of the base.

[0009] Preferably, a protective box is installed on one side of the base. The protective box can cover and protect the assembly of the meshing output part, the coolant tank, the I-shaped gear shaft and the first gear, and there is a clearance between the inner wall of the protective box and the surface of the assembly.

[0010] Preferably, the protective box consists of a support frame and several filter screens fixedly nested inside the support frame. The bottom of the support frame and the top of the base can be fixed together by screws. The side wall of one side of the support frame is fitted with the end of the drive shaft located outside the rotary kiln.

[0011] Preferably, a T-shaped gear shaft is mounted on the middle of the positioning sleeve via a bearing. One end of the T-shaped gear shaft is meshed with a linkage gear sleeve mounted on the surface of the heat transfer plate away from the rotary kiln. There are clearance gaps between the surface of the linkage gear sleeve, the surface of the T-shaped gear shaft, and the inner wall of the coolant tank.

[0012] Preferably, a plurality of levers are mounted on the surface of the other end of the T-shaped gear shaft, which are movably fitted inside the coolant tank, and the plurality of levers are arranged and installed circumferentially along the other end of the T-shaped gear shaft.

[0013] Preferably, a support frame is installed between the surface of the coolant tank and the top surface of the base, and the coolant tank, the I-shaped gear shaft, the first gear, and the heat-conducting plate are all made of heat-conducting material.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model is assembled into a meshing transmission mechanism by a meshing output component consisting of a first gear, an I-shaped gear shaft, a positioning sleeve, a second gear, and a brake servo motor. A cooling component consisting of a coolant tank and two heat-conducting plates is used. After the two components are combined with the transmission shaft, burner mechanism, base, and rotary kiln to form the main body of the rotary kiln, it can not only provide precise multi-stage meshing rotational power to the processing box and transmission shaft in the rotary kiln, but also perform timely heat conduction and heat dissipation treatment of the waste heat discharged from the transmission shaft, thus fully ensuring the service life of each component in the meshing transmission mechanism.

[0016] 2. This utility model consists of a T-shaped gear shaft, a linkage gear sleeve, and multiple levers forming a self-cooling component. When further combined with the aforementioned cooling components and meshing transmission mechanism, the linkage gear sleeve and the T-shaped gear shaft can mesh and transmit power to each other using the kinetic energy output by the meshing transmission mechanism. This causes the T-shaped gear shaft to drive multiple levers to rotate automatically inside the coolant tank, agitating the coolant inside and, in conjunction with the coolant tank's own heat conduction effect, accelerating the self-heating effect of the coolant. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a front view schematic diagram of the structure of this utility model;

[0019] Figure 3 This is a partial cross-sectional schematic diagram of the coolant tank structure of this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the I-shaped gear shaft of this utility model.

[0021] In the diagram: 1. Rotary furnace; 2. Base; 3. Burner mechanism; 4. Drive shaft; 5. Insulation box door; 6. First gear; 7. I-beam gear shaft; 8. Second gear; 9. Brake servo motor; 10. Positioning sleeve; 11. Coolant tank; 12. Heat transfer plate; 13. T-shaped gear shaft; 14. Paddle plate; 15. Linkage gear sleeve; 16. Protective box. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 A high-temperature furnace for high-temperature calcination of alumina includes a rotary furnace 1, a base 2 installed at the bottom of the rotary furnace 1, a burner mechanism 3 and a processing box respectively installed in the top and bottom of the rotary furnace 1, the front end of the processing box has a door that can be opened and closed reciprocally, and the front end of the rotary furnace 1 has a heat-insulated door 5 that can be opened and closed reciprocally and aligned with the processing box, and both sides of the processing box are equipped with drive shafts 4 that are fitted with the rotary furnace 1, one end of one of the drive shafts 4 extends to the outside of the rotary furnace 1 and is connected to a first gear 6.

[0024] A I-shaped gear shaft 7, a coolant tank 11, and a meshing output component are provided on one side of the base 2. The I-shaped gear shaft 7 is located between the first gear 6 and the meshing output component and meshes synchronously with the output structure of the meshing output component and the first gear 6. The meshing output component includes a second gear 8 and a brake servo motor 9. The output end of the brake servo motor 9 is connected to the middle part of the second gear 8, and the second gear 8, as the output structure of the meshing output component, meshes with the end of the I-shaped gear shaft 7 away from the rotary kiln 1. A fixed seat is installed between the housing surface of the brake servo motor 9 and the top surface of the base 2. The middle part of the I-shaped gear shaft 7 is fitted with a positioning sleeve plate 10 installed on the inner wall of the bottom of the coolant tank 11 through a bearing. Heat conduction plates 12 that are movably sleeved inside the coolant tank 11 are installed on the surfaces of both ends of the I-shaped gear shaft 7.

[0025] In use, open the heat insulation box door 5 and the front door of the processing box in sequence, place the alumina raw material to be processed inside the processing box, and after completion, reset and close the front door of the processing box and the heat insulation box door 5 in sequence. After completion, start the burner mechanism 3, and the burner mechanism 3 will calcine the alumina raw material placed inside the processing box. The burner mechanism 3 can be a pulverized coal burner.

[0026] While calcining the alumina raw material, the brake servo motor 9 is started. The output end of the brake servo motor 9 drives the second gear 8 to rotate synchronously. Then, the second gear 8 meshes with the I-shaped gear shaft 7 and the I-shaped gear shaft 7 with one side of the first gear 6. Finally, the transmission shaft 4 connected to the first gear 6 drives the processing box to rotate synchronously, so that the alumina raw material in the processing box is calcined evenly, thus improving the calcination processing quality.

[0027] Please see Figure 3 A protective box 16 is installed on one side of the base 2. The protective box 16 can cover and protect the assembly of the meshing output part, coolant tank 11, I-shaped gear shaft 7 and first gear 6. There is a clearance between the inner wall of the protective box 16 and the surface of the assembly to avoid structural interference.

[0028] During use, to prevent unauthorized personnel from coming into contact with the brake servo motor 9 and its related structures, a protective enclosure 16 is used to protect the brake servo motor 9 and its related structures, thereby improving the safety of use.

[0029] Please see Figure 3-4 The protective box 16 consists of a support frame and several filter screens fixedly nested inside the support frame. The bottom of the support frame and the top of the base 2 can be installed and fixed with screws. The side wall of one side of the support frame is fitted with the end of the drive shaft 4 located outside the rotary kiln 1. The middle of the positioning sleeve plate 10 is fitted with a T-shaped gear shaft 13 through a bearing. One end of the T-shaped gear shaft 13 is meshed and connected to a linkage gear sleeve 15 fitted on the surface of the heat transfer plate 12 away from the rotary kiln 1. There are clearance gaps between the surface of the linkage gear sleeve 15, the surface of the T-shaped gear shaft 13 and the inner wall of the coolant tank 11.

[0030] Several levers 14 are mounted on the surface of the other end of the T-shaped gear shaft 13 and are movably fitted inside the coolant tank 11. The levers 14 are arranged and installed circumferentially along the other end of the T-shaped gear shaft 13. A support frame is installed between the surface of the coolant tank 11 and the top surface of the base 2. The coolant tank 11, the I-shaped gear shaft 7, the first gear 6, and the heat-conducting plate 12 are all made of heat-conducting material.

[0031] In use, in order to dissipate the waste heat from the drive shaft 4 in a timely manner, two heat-conducting disks 12 are rotated in conjunction with the I-shaped gear shaft 7. The waste heat from the drive shaft 4 is then conducted to the two heat-conducting disks 12 through the first gear 6 and the I-shaped gear shaft 7, and then from the two heat-conducting disks 12 to the coolant inside the coolant tank 11. This prevents the waste heat from accumulating at the meshing point between the I-shaped gear shaft 7 and the first gear 6, and ensures the normal service life of the I-shaped gear shaft 7 and the first gear 6.

[0032] Furthermore, considering the continuous use requirements of the coolant inside the coolant tank 11, the T-shaped gear shaft 13, the linkage gear sleeve 15, and the I-shaped gear shaft 7 are used for joint meshing and transmission, thereby causing the T-shaped gear shaft 13 to drive multiple paddles 14 to rotate automatically inside the coolant tank 11, agitating the coolant inside the coolant tank 11 and, in conjunction with the heat conduction effect of the coolant tank 11 itself, accelerating the self-heating effect of the coolant.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature furnace for alumina calcination production, comprising a rotary furnace (1) and a base (2) installed at the bottom of the rotary furnace (1), wherein a burner mechanism (3) and a processing box are respectively installed inside the top and bottom of the rotary furnace (1), the front end of the processing box has a door that can be reciprocated and opened, and the front end of the rotary furnace (1) has a heat-insulating door that can be reciprocated and aligned with the processing box, characterized in that: Both sides of the processing box are equipped with drive shafts (4) that are fitted with the rotary kiln (1). One end of one of the drive shafts (4) extends to the outside of the rotary kiln (1) and is connected to the first gear (6). The base (2) is provided with an I-shaped gear shaft (7), a coolant tank (11), and a meshing output component on one side. The I-shaped gear shaft (7) is located between the first gear (6) and the meshing output component and meshes synchronously with the output structure of the meshing output component and the first gear (6). The middle part of the I-shaped gear shaft (7) is fitted with a positioning sleeve plate (10) installed on the inner wall of the bottom of the coolant tank (11) through a bearing. The surfaces at both ends of the I-shaped gear shaft (7) are fitted with heat-conducting plates (12) that are movably connected to the inside of the coolant tank (11).

2. The high-temperature furnace for alumina calcination production according to claim 1, characterized in that: The meshing output component includes a second gear (8) and a brake servo motor (9). The output end of the brake servo motor (9) is connected to the middle of the second gear (8) for transmission. The second gear (8) serves as the output structure of the meshing output component and meshes with the end of the I-shaped gear shaft (7) away from the rotary kiln (1). A fixed seat is installed between the housing surface of the brake servo motor (9) and the top surface of the base (2).

3. The high-temperature furnace for alumina calcination production according to claim 1, characterized in that: A protective box (16) is installed on one side of the base (2). The protective box (16) can cover and protect the assembly of the meshing output part, coolant tank (11), I-shaped gear shaft (7) and first gear (6), and there is a clearance between the inner wall of the protective box (16) and the surface of the assembly.

4. The high-temperature furnace for alumina calcination production according to claim 3, characterized in that: The protective box (16) consists of a support frame and several filter screens fixedly nested inside the support frame. The bottom of the support frame and the top of the base (2) can be installed and fixed by screws. The side wall of one side of the support frame is fitted with the end of the drive shaft (4) located outside the rotary kiln (1).

5. The high-temperature furnace for alumina calcination production according to claim 1, characterized in that: The middle part of the positioning sleeve (10) is fitted with a T-shaped gear shaft (13) through a bearing. One end of the T-shaped gear shaft (13) is meshed with a linkage gear sleeve (15) fitted on the surface of the heat transfer plate (12) away from the rotary kiln (1). There is a clearance between the surface of the linkage gear sleeve (15), the surface of the T-shaped gear shaft (13) and the inner wall of the coolant tank (11).

6. The high-temperature furnace for alumina calcination production according to claim 5, characterized in that: Several levers (14) are mounted on the surface of the other end of the T-shaped gear shaft (13), which are movably fitted inside the coolant tank (11). The levers (14) are arranged and installed circumferentially along the other end of the T-shaped gear shaft (13).

7. The high-temperature furnace for alumina calcination production according to claim 1, characterized in that: A support frame is installed between the surface of the coolant tank (11) and the top surface of the base (2), and the coolant tank (11), the I-shaped gear shaft (7), the first gear (6) and the heat-conducting plate (12) are all made of heat-conducting material.

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