Calcination equipment for producing high-purity calcium oxide

Abstract

The utility model discloses calcining equipment for producing high-purity calcium oxide, which comprises a bottom frame and a kiln body, a driving mechanism used for driving the kiln body to rotate is arranged between the bottom frame and the kiln body in a matching manner, an electromagnetic heating device is fixedly arranged on the bottom frame and on the outer side of the kiln body, and a spiral blade is fixedly arranged on the inner wall of the kiln body. A spiral stirring mechanism is arranged in the kiln body and comprises a rotating shaft rotationally arranged between the two ends in the kiln body, spiral stirring blades are fixedly arranged on the rotating shaft, a support is fixedly arranged on the bottom frame, and a motor is fixedly arranged on the support. Limestone can be fully stirred in the kiln, materials are heated more evenly in the calcining process, and therefore the purity of calcium oxide is effectively improved, the materials can be continuously stirred and crushed through the synergistic effect of the spiral stirring blades and the spiral blades, the limestone can be extruded and crushed between the blades, and the materials are prevented from caking and stacking.

Description

Technical Field

[0001] This utility model relates to the technical field of calcium oxide processing equipment, specifically to a calcination device for producing high-purity calcium oxide. Background Technology

[0002] Limestone is an important raw material in industrial production. Its main component, calcium carbonate, can decompose into calcium oxide under high-temperature calcination. High-purity calcium oxide has a wide range of applications in many fields such as construction and chemical industry, and its quality largely depends on the limestone calcination process.

[0003] Traditional limestone calcination equipment suffers from numerous problems. One major issue is the lack of an effective stirring device to ensure uniform heating. This prevents the limestone within the kiln from being adequately agitated, leading to uneven temperature distribution. Limestone closer to the heat source heats up rapidly, while areas farther away heat up slowly. This uneven heating results in inconsistent limestone decomposition rates, ultimately affecting the purity of calcium oxide.

[0004] In terms of conveying, the structural design of traditional calcining equipment is not reasonable enough, lacking a mixing and crushing structure. When materials are conveyed in the kiln, they tend to accumulate in large pieces. Because there is no corresponding mixing and crushing to improve their flowability, this leads to blockages and hinders the smooth conveying of materials. Utility Model Content

[0005] (I) Technical Issues

[0006] This invention aims to solve the problems of uneven heating and poor material conveying in traditional limestone calcination equipment.

[0007] (II) Technical Content

[0008] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a calcination device for producing high-purity calcium oxide, comprising a base frame and a kiln body rotatably mounted on the base frame, a drive mechanism for driving the kiln body to rotate is matched between the base frame and the kiln body, an electromagnetic heating device is fixedly mounted on the base frame and located on the outside of the kiln body, a spiral blade is fixedly mounted on the inner wall of the kiln body, a spiral stirring mechanism is provided inside the kiln body, the spiral stirring mechanism includes a rotating shaft rotatably mounted between the two ends inside the kiln body, a spiral stirring blade is fixedly mounted on the rotating shaft, a bracket is fixedly mounted on the base frame, a motor is fixedly mounted on the bracket, the drive shaft of the motor is drivenly connected to the rotating shaft, the spiral stirring blade and the spiral blade have the same spiral direction but opposite rotation direction.

[0009] Furthermore, the driving mechanism includes a gear ring fixedly disposed on the outside of the kiln body, and a second motor fixedly disposed on the base frame. A gear is fixedly disposed on the drive of the second motor, and the gear meshes with the gear ring.

[0010] Furthermore, a feed inlet is provided at the upper right end of the kiln body, and a discharge outlet is provided at the lower left end of the kiln body.

[0011] Furthermore, bearing seats are fixedly provided on both the left and right sides of the upper end face of the base frame, and the kiln body is fixedly located between the inner rings of the two bearing seats.

[0012] Furthermore, the outer diameter of the spiral stirring blade is smaller than the inner diameter of the spiral blade.

[0013] (III) Technical Effects

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] 1. Improved heating uniformity: This equipment incorporates a spiral stirring mechanism within the kiln body, which works in conjunction with the spiral blades on the inner wall and rotates in the opposite direction. This design ensures thorough stirring of the limestone within the kiln, avoiding the uneven heating problems caused by insufficient stirring in traditional equipment. This results in more uniform heating of the material during calcination, effectively improving the purity of calcium oxide.

[0016] 2. Improved material conveying: The synergistic effect of the spiral mixing blades and the spiral blades can continuously mix and crush materials. The blades can squeeze and crush limestone, preventing material from accumulating and greatly reducing blockages during the conveying process. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a calcination device for producing high-purity calcium oxide according to this utility model. Figure 1 .

[0018] Figure 2 This is a three-dimensional structural diagram of a calcination device for producing high-purity calcium oxide according to this utility model. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the main structure of a calcination device for producing high-purity calcium oxide according to this utility model.

[0020] Figure 4 This is a top view schematic diagram of a calcination device for producing high-purity calcium oxide according to this utility model.

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of a calcination device for producing high-purity calcium oxide according to this utility model.

[0022] As shown in the figure: 1. Base frame; 2. Kiln body; 3. Electromagnetic heating device; 4. Spiral blades; 5. Rotating shaft; 6. Spiral stirring blades; 7. Support; 8. Motor; 9. Gear ring; 10. Motor II; 11. Gear; 12. Feed inlet; 13. Discharge outlet; 14. Bearing seat. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", 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 this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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 present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Combined with appendix Figure 1 To be continued Figure 5 A calcination device for producing high-purity calcium oxide includes a base frame 1 and a kiln body 2 rotatably mounted on the base frame 1. A drive mechanism for driving the kiln body 2 to rotate is matched between the base frame 1 and the kiln body 2. An electromagnetic heating device 3 is fixedly mounted on the base frame 1 and located on the outside of the kiln body 2. A spiral blade 4 is fixedly mounted on the inner wall of the kiln body 2. A spiral stirring mechanism is provided inside the kiln body 2. The spiral stirring mechanism includes a rotating shaft 5 rotatably mounted between the two ends inside the kiln body 2. A spiral stirring blade 6 is fixedly mounted on the rotating shaft 5. A bracket 7 is fixedly mounted on the base frame 1. A motor 8 is fixedly mounted on the bracket 7. The drive shaft of the motor 8 is drivenly connected to the rotating shaft 5. The spiral stirring blade 6 and the spiral blade 4 have the same spiral direction but opposite rotation directions. The outer diameter of the spiral stirring blade 6 is smaller than the inner diameter of the spiral blade 4.

[0027] The upper right side of the kiln body 2 is provided with a feed inlet 12, and the lower left side of the kiln body 2 is provided with a discharge outlet 13. The upper left and right sides of the base frame 1 are both fixedly provided with bearing seats 14, and the kiln body 2 is fixedly located between the inner rings of the two bearing seats 14.

[0028] In this embodiment, as a preferred technical solution, the driving mechanism includes a gear ring 9 fixedly disposed on the outside of the kiln body 2, and a second motor 10 fixedly disposed on the base frame 1. A gear 11 is fixedly disposed on the drive of the second motor 10, and the gear 11 meshes with the gear ring 9.

[0029] The working principle of this calcination equipment for producing high-purity calcium oxide is as follows: The equipment combines an electromagnetic heating device 3 to heat the kiln body 2. Simultaneously, a unique spiral stirring mechanism within the kiln body 2, in conjunction with the inner wall spiral blades 4, achieves thorough mixing and conveying of the material. A motor 8 drives a rotating shaft 5, which in turn rotates the spiral stirring blades 6. The kiln body 2 rotates under the action of the driving mechanism; the relative motion of these two mechanisms enables comprehensive processing of the material.

[0030] The working process of the calcination equipment for producing high-purity calcium oxide according to this utility model is as follows:

[0031] 1. Feeding: The material enters the kiln from the feed port 12 at the upper right side of the kiln body 2.

[0032] 2. Heating and Stirring: The electromagnetic heating device 3 is turned on to heat the kiln body 2. At the same time, the motor 8 is started, driving the rotating shaft 5 to rotate. The spiral stirring blades 6 on the rotating shaft 5 begin to rotate, stirring the material. Simultaneously, the drive mechanism is started. The motor 10 in the drive mechanism drives the gear 11. The gear 11 meshes with the gear ring 9 on the outer side of the kiln body 2, driving the kiln body 2 to rotate. The spiral blades 4 on the inner wall of the kiln body 2 and the spiral stirring blades 6 have the same spiral direction but opposite rotation direction. The two work together to ensure that the material is fully turned over in the kiln, ensuring that the material is heated evenly and effectively avoiding local overheating or underheating.

[0033] 3. Material conveying and continuous processing: During the mixing process, due to the relative motion of the spiral mixing blades 6 and 4, the spiral mixing blades 6 continuously mix and crush the material, preventing large pieces of material from clogging the flow and ensuring smooth material conveying. The spiral mixing blades 6 mix the material in the opposite direction of the conveying, which can increase the residence time of the material in the kiln and improve the calcination effect. Since the outer diameter of the spiral mixing blades 6 is smaller than the inner diameter of the spiral blades 4, the limestone will eventually move towards the discharge port at a slow speed.

[0034] 4. Discharge: The calcined material is discharged from the discharge port 13 at the lower left side of the kiln body 2, completing the entire process of producing high-purity calcium oxide. Throughout the process, the bearing seats 14 on the base frame 1 ensure the stable rotation of the kiln body 2, providing support for the stable operation of the equipment.

[0035] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A calcination apparatus for producing high-purity calcium oxide, comprising a base frame (1) and a kiln body (2) rotatably mounted on the base frame (1), wherein a drive mechanism for driving the kiln body (2) to rotate is matched between the base frame (1) and the kiln body (2), and an electromagnetic heating device (3) is fixedly mounted on the base frame (1) and located outside the kiln body (2), characterized in that: The inner wall of the kiln body (2) is fixedly provided with spiral blades (4), and the inside of the kiln body (2) is provided with a spiral stirring mechanism. The spiral stirring mechanism includes a rotating shaft (5) rotatably located between the two ends inside the kiln body (2). Spiral stirring blades (6) are fixedly provided on the rotating shaft (5). A bracket (7) is fixedly provided on the base frame (1). A motor (8) is fixedly provided on the bracket (7). The drive shaft of the motor (8) is drivenly connected to the rotating shaft (5). The spiral stirring blades (6) and the spiral blades (4) have the same spiral direction and opposite rotation direction.

2. The calcination equipment for producing high-purity calcium oxide according to claim 1, characterized in that: The driving mechanism includes a gear ring (9) fixedly mounted on the outside of the kiln body (2), and a second motor (10) fixedly mounted on the base frame (1). A gear (11) is fixedly mounted on the drive of the second motor (10), and the gear (11) meshes with the gear ring (9).

3. The calcination equipment for producing high-purity calcium oxide according to claim 1, characterized in that: The upper right side of the kiln body (2) is provided with a feed inlet (12), and the lower left side of the kiln body (2) is provided with a discharge outlet (13).

4. The calcination equipment for producing high-purity calcium oxide according to claim 1, characterized in that: The base frame (1) is fixedly provided with bearing seats (14) on both the left and right sides of the upper end face, and the kiln body (2) is fixedly provided between the inner rings of the two bearing seats (14).

5. The calcination equipment for producing high-purity calcium oxide according to claim 1, characterized in that: The outer diameter of the spiral stirring blade (6) is smaller than the inner diameter of the spiral blade (4).

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