Rotary kiln lifting device

Abstract

The utility model provides a lifting device of a rotary kiln. The rotary kiln lifting device comprises a rotary barrel carrying material support, wherein the carrying material support comprises a lifting plate and two blocking surrounding edges; the lifting plate is fixedly arranged on the inner wall of the rotary barrel, and the carrying support is used for stirring materials in the rotary barrel; the two material blocking surrounding edges are connected to the edges of the two opposite sides of the material raising plate correspondingly. The edge positions of the sides, away from the lifting plates, of the two material blocking surrounding edges are spaced from each other, and an inlet for carrying the material supports is formed. The edge, away from the rotary barrel, of the lifting plate and the edges of the two adjacent material blocking surrounding edges jointly define an outlet of the carrying material support, materials can be turned and stirred along with the lifting plate and enter the carrying material support through the inlet of the carrying material support, the material blocking surrounding edges block the materials so that the materials can be prevented from sliding down, and the materials gradually face the gravity direction along with the outlet of the carrying material support. And the materials on the lifting plates can be uniformly thrown out under the action of gravity, so that the calcination uniformity of the materials is finally improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of waste battery recycling, and in particular to a rotary kiln material lifting device. Background Art

[0002] In the battery recycling industry, rotary kilns are used to calcine and synthesize iron phosphate precursors. Rotary kilns primarily agitate the iron phosphate precursor within them by rotating it. To improve this agitation, related technologies, such as Chinese patent document CN216282687U, disclose a lifting device for rotary kilns. While this lifting device, mounted within a drum, lifts and disperses the iron phosphate precursor as the kiln rotates, the kiln operates at a speed of only 1 rpm, resulting in slow rotation. The resulting iron phosphate precursor forms a fine powder, which, due to its high fluidity, easily slides off the upper and lower lifting plates. Experimental results indicate that using this lifting device prevents agitation of the iron phosphate precursor powder with a volumetric filling rate of approximately 10%, resulting in uneven heating. This results in inadequate desulfurization and crystallization of the iron phosphate precursor powder, ultimately increasing the defective rate of the iron phosphate precursor. Utility Model Content

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a rotary kiln material raising device with more uniform material stirring and better scattering effect.

[0004] The purpose of this disclosure is achieved through the following technical solutions:

[0005] A rotary kiln material lifting device comprises a rotating cylinder and a material carrying support, wherein the material carrying support comprises a material lifting plate and two material retaining edges, wherein the material lifting plate is fixedly arranged on the inner wall of the rotating cylinder, and the material carrying support is used to stir the material in the rotating cylinder;

[0006] The two material-blocking edges are respectively connected to the opposite side edges of the material-lifting plate; the edge positions of the two material-blocking edges on the side away from the material-lifting plate are spaced apart from each other and form the entrance of the material-carrying tray; the entrance of the material-carrying tray is used for allowing materials to enter; the edge of the material-lifting plate away from the rotating cylinder and the edges of the two adjacent material-blocking edges together form the outlet of the material-carrying tray, and the outlet of the material-carrying tray is used for scattering materials.

[0007] In some embodiments, the rotary kiln material lifting device further includes a movable flap; the movable flap is rotatably disposed at the outlet of the material carrying tray to open or close the outlet of the material carrying tray.

[0008] In some embodiments, the movable flap includes a rotating shaft and a material baffle plate, the rotating shaft is horizontally placed at the outlet of the material carrier, and each end of the rotating shaft is rotatably connected to one of the material baffle edges; the material baffle plate is fixedly arranged on the rotating shaft and rotates at the outlet of the material carrier.

[0009] In some embodiments, the rotating shaft is disposed away from the lifting plate.

[0010] In some embodiments, each of the material-blocking edges is provided with a rotation hole; each end of the rotating shaft rotates through a rotation hole and forms a limiting protrusion on the outer side of the material-carrying tray.

[0011] In some embodiments, the plane where the lifting plate is located passes through the central axis of the rotating cylinder.

[0012] In some embodiments, the two material blocking edges are parallel to each other and perpendicular to the material lifting plate.

[0013] In some embodiments, there are multiple material carriers, and the multiple material carriers are spaced apart on the inner wall of the rotating cylinder.

[0014] In some embodiments, the plurality of material carriers are equidistantly distributed in the axial direction of the rotating cylinder.

[0015] In some embodiments, the plurality of material carriers are equidistantly distributed in the circumferential direction of the rotating cylinder.

[0016] Compared with the prior art, the present disclosure has at least the following advantages:

[0017] The above-mentioned rotary kiln material lifting device, because the two material blocking edges are respectively connected to the opposite two side edges of the material lifting plate, and the edge positions of the two material blocking edges on the side away from the material lifting plate are spaced apart from each other, thereby forming an entrance of the carrying material tray, when the material lifting plate stirs the material in the rotating cylinder, the material can enter the carrying material tray through the entrance of the carrying material tray, and the powder is blocked by the material blocking edges and can be more retained on the carrying material tray. Moreover, because the edge of the material lifting plate away from the rotating cylinder and the edges of the two adjacent material blocking edges jointly form the outlet of the carrying material tray, the material on the material lifting plate can move a certain height with the rotating cylinder, and at this height, all the material is thrown out by gravity. In this way, the iron phosphate precursor powder can be thrown more evenly, and the iron phosphate precursor powder can be heated more evenly, thereby promoting the desulfurization and crystallization of the iron phosphate precursor powder, and ultimately improving the iron phosphate precursor yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic structural diagram of a rotary kiln material lifting device according to an embodiment of the present disclosure;

[0020] Figure 2 for Figure 1 A partial enlarged view shown in the middle;

[0021] Figure 3 for Figure 1 The schematic diagram of the structure of the material carrier in the rotary kiln lifting device shown;

[0022] Figure 4 for Figure 1 The front view of the rotary kiln lifting device is shown.

[0023] Figure numerals: 10, rotary kiln material lifting device; 110, rotating cylinder; 120, material carrying tray; 1210, material lifting plate; 1220, material blocking edge; 1221, rotating hole; 1201, inlet; 1202, outlet; 130, movable flap; 1310, rotating shaft; 1311, limiting protruding handle; 1320, material blocking plate. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0028] like Figure 1 and Figure 2 As shown, a rotary kiln material lifting device 10 of an embodiment includes a rotating cylinder 110 and a material carrying support 120, and the material carrying support 120 includes a material lifting plate 1210 and two material blocking edges 1220; the material lifting plate 1210 is fixedly arranged on the inner wall of the rotating cylinder 110, and the material carrying support 120 is used to stir the material in the rotating cylinder 110; the two material blocking edges 1220 are respectively connected to the opposite side edges of the material lifting plate 1210, and the edge positions of the two material blocking edges 1220 on the side away from the material lifting plate 1210 are spaced from each other, and form an entrance 1201 of the material carrying support 120; the entrance 1201 of the material carrying support 120 is used for material entry; the edge of the material lifting plate 1210 away from the rotating cylinder 110 and the edges of the two adjacent material blocking edges 1220 together form an outlet 1202 of the material carrying support 120, and the outlet 1202 of the material carrying support 120 is used for scattering materials.

[0029] The two edges of the material-blocking edges 1220 are connected to the opposite side edges of the material-lifting plate, and the edge positions of the two material-blocking edges 1220 on the side away from the material-lifting plate 1210 are spaced apart from each other, thereby forming an inlet 1201 of the material-carrying tray 120. When the material-lifting plate 1210 stirs the material in the rotating cylinder 110, the material can enter the material-carrying tray 120 through the inlet 1201 of the material-carrying tray 120. The powder is blocked by the material-blocking edges 1220 and can be more retained on the material-lifting plate 1210. Moreover, since the edge of the material-lifting plate 1210 away from the rotating cylinder 110 and the edges of the two adjacent material-blocking edges 1220 jointly form an outlet 1202 of the material-carrying tray 120, as the material-carrying tray 120 gradually rotates and moves with the rotating cylinder 110, when the outlet 1202 of the material-carrying tray 120 gradually faces the direction of gravity, the material on the material-lifting plate 1210 can be thrown out under the action of gravity. In this way, the iron phosphate precursor powder can be scattered more evenly, and the iron phosphate precursor powder can be heated more evenly, thereby promoting the desulfurization and crystallization of the iron phosphate precursor powder, and ultimately improving the iron phosphate precursor yield.

[0030] Combine Figure 2As shown, in some embodiments, the rotary kiln material lifting device 10 further includes a movable flap 130 ; the movable flap 130 is rotatably disposed at the outlet 1202 of the material carrying tray 120 to open or close the outlet 1202 of the material carrying tray 120 . It can be understood that since the movable flap 130 is rotatably arranged at the outlet 1202 of the carrying material tray 120, when the carrying material tray 120 is close to the bottom of the rotating cylinder 110, the material mainly enters the carrying material tray 120 through the inlet 1201 of the carrying material tray 120, and can be blocked by the movable flap 130 to block the outlet 1202 of the carrying material tray 120, so that more material can be retained in the carrying material tray 120. As the carrying material tray 120 moves to a certain height with the rotating cylinder 110, the outlet 1202 of the carrying material tray 120 will gradually face downward. At this time, the movable flap 130 will gradually rotate under its own weight and open the outlet 1202 of the carrying material tray 120, so that more material can be brought to a high place and all thrown out from the outlet 1202 of the carrying material tray 120.

[0031] Combine Figure 3 As shown, in this embodiment, the movable flap 130 includes a rotating shaft 1310 and a material blocking plate 1320. The rotating shaft 1310 is horizontally disposed at the outlet 1202 of the material carrier 120, and each end of the rotating shaft 1310 is rotatably connected to a material blocking edge 1220. The material blocking plate 1320 is fixed to the rotating shaft 1310 and rotates at the outlet 1202 of the material carrier 120. It can be understood that since each end of the rotating shaft 1310 is rotatably connected to a material blocking edge 1220, the material blocking edge 1220 can support the rotating shaft 1310, so that the material blocking plate 1320 fixed to the rotating shaft 1310 can smoothly rotate with the rotating shaft 1310 to a state away from the outlet 1202 of the material carrier 120, so that the movable flap 130 can more smoothly open or close the outlet 1202 of the material carrier 120.

[0032] Combine Figure 2 and Figure 3 As shown, in some embodiments, the rotating shaft 1310 is disposed away from the material lifting plate 1210. It is understood that since the material baffle plate 1320 rotates about the axial direction of the rotating shaft 1310, disposing the rotating shaft 1310 away from the material lifting plate 1210 allows the rotation center of the material baffle plate 1320 to be further away from the material lifting plate 1210. Specifically, the rotation center of the material baffle plate 1320 is closer to the edge of the outlet 1202 of the material carrier 120, while the main body of the material baffle plate 1320 is closer to the center of the outlet 1202 of the material carrier 120. This decouples the center of gravity of the movable flap 130 from the rotation center. This allows the movable flap 130 to rotate more significantly under the action of gravity.

[0033] Combine Figure 3 As shown, specifically, each material retaining edge 1220 is provided with a rotation hole 1221; each end of the rotating shaft 1310 rotates through a rotation hole 1221, and forms a limiting lug 1311 on the outside of the material carrier 120. It can be understood that because each end of the rotating shaft 1310 rotates through a rotation hole 1221, the rotating shaft 1310 can maintain relative rotation with each material retaining edge 1220. Furthermore, because each end of the rotating shaft 1310 forms a limiting lug 1311 on the outside of the material carrier 120 after passing through the rotation hole 1221, the limiting action of the two limiting lugs 1311 prevents the rotating shaft 1310 from slipping out of the rotation hole 1221.

[0034] Combine Figure 1 and Figure 4 As shown, in some embodiments, the plane where the lifting plate 1210 is located passes through the central axis O of the rotating cylinder 110. It can be understood that since the plane where the lifting plate 1210 is located passes through the central axis O of the rotating cylinder 110, that is, the lifting plate 1210 is perpendicular to the tangent of the inner circumferential wall of the rotating cylinder 110, when the lifting plate 1210 is located at the bottom of the rotating cylinder 110, the lifting plate 1210 will remain in a vertical state, thereby being able to stir up more materials.

[0035] Combine Figure 3 As shown, in some embodiments, the two material blocking edges 1220 are parallel to each other and perpendicular to the material lifting plate 1210. It can be understood that since the two material blocking edges 1220 are parallel to each other and perpendicular to the material lifting plate 1210, the material lifting plate 1210 and the two material blocking edges 1220 can form a box-shaped structure, which can take into account both loading capacity and loading stability.

[0036] Combine Figure 1 As shown, in some embodiments, there are multiple material carriers 120, and the multiple material carriers 120 are spaced apart on the inner wall of the rotating cylinder 110. It can be understood that since the multiple material carriers 120 are spaced apart on the inner wall of the rotating cylinder 110, the material in more areas of the rotating cylinder 110 can be stirred by the material carriers 120.

[0037] Combine Figure 1 As shown, in some embodiments, a plurality of material carriers 120 are equidistantly distributed along the axial direction of the rotating cylinder 110. It can be understood that since the plurality of material carriers 120 are equidistantly distributed along the axial direction of the rotating cylinder 110, the material can be more evenly stirred by the material carriers 120 along the axial direction of the rotating cylinder 110, and the material can be heated more evenly along the axial direction of the rotating cylinder 110.

[0038] Combine Figure 1 and Figure 4 As shown, in some embodiments, the plurality of material carriers 120 are equidistantly distributed around the circumference of the rotating cylinder 110. It is understood that since the plurality of material carriers 120 are equidistantly distributed around the circumference of the rotating cylinder 110, the plurality of material carriers 120 can sequentially stir the material within the rotating cylinder 110 during the rotation of the rotating cylinder 110, thereby achieving a continuous spreading effect of the material and ultimately improving the stirring efficiency of the material.

[0039] In some embodiments, for better understanding, the operation process of the rotary kiln material lifting device 10 is described as follows:

[0040] Before the operation, the raw materials are first placed in the rotating cylinder 110, and then the rotating cylinder 110 is started. The rotating cylinder 110 is controlled to rotate at a speed of 1 rpm and the temperature in the rotating cylinder 110 is increased. The raw materials are calcined in the rotating cylinder 110 to synthesize iron phosphate precursor powder. The lifting plate 1210 rotates with the rotating cylinder 110 to stir the iron phosphate precursor powder. The iron phosphate precursor powder enters the carrying material tray 120 through the inlet 1201 of the carrying material tray 120. When the iron phosphate precursor powder moves a certain height with the rotating cylinder 110, the outlet 1202 of the carrying material tray 120 gradually faces downward, and the iron phosphate precursor powder is all thrown back to the bottom of the rotating cylinder 110 from the outlet 1202 of the carrying material tray 120 under the action of gravity.

[0041] Compared with the prior art, the present disclosure has at least the following advantages:

[0042] The rotary kiln lifting device 10 has two material retaining edges 1220 connected to the opposite edges of the lifting plate 1210, and the edges of the two material retaining edges 1220 away from the lifting plate 1210 are spaced apart from each other, thereby forming an inlet 1201 for the material carrier 120. When the lifting plate 1210 stirs the material in the rotating cylinder 110, the material can enter the material carrier 120 through the inlet 1201 of the material carrier 120, and the powder The material on the lifting plate 1210 is more likely to be retained by the material retaining edge 1220. Furthermore, because the edge of the lifting plate 1210 away from the rotating cylinder 110 and the edges of the two adjacent material retaining edges 1220 together form the outlet 1202 of the material carrier 120, as the material carrier 120 gradually rotates and moves with the rotating cylinder 110, when the outlet 1202 of the material carrier 120 gradually moves toward the direction of gravity, the material on the lifting plate 1210 can be thrown out under the action of gravity. In this way, the iron phosphate precursor powder can be thrown more evenly, and the iron phosphate precursor powder can be heated more evenly, thereby promoting the desulfurization and crystallization of the iron phosphate precursor powder, and ultimately improving the iron phosphate precursor yield.

[0043] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art could make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present patent shall be determined by the appended claims.

Claims

1. A rotary kiln material lifting device (10), characterized in that: The invention comprises a rotating cylinder (110) and a material carrying support (120), wherein the material carrying support (120) comprises a material lifting plate (1210) and two material blocking edges (1220); the material lifting plate (1210) is fixedly arranged on the inner wall of the rotating cylinder (110), and the material carrying support (120) is used for stirring the material in the rotating cylinder (110); The two material-blocking edges (1220) are respectively connected to the opposite side edges of the material-lifting plate (1210), and the edge positions of the two material-blocking edges (1220) on the side away from the material-lifting plate (1210) are spaced apart from each other to form the entrance (1201) of the material-carrying tray (120); the entrance (1201) of the material-carrying tray (120) is used for allowing materials to enter; the edge of the material-lifting plate (1210) away from the rotating cylinder (110) and the edges of the two adjacent material-blocking edges (1220) together form the exit (1202) of the material-carrying tray (120), and the exit (1202) of the material-carrying tray (120) is used for scattering materials.

2. The rotary kiln material lifting device (10) according to claim 1, characterized in that: The rotary kiln material lifting device (10) further includes a movable flap (130); the movable flap (130) is rotatably disposed at the outlet (1202) of the material carrying tray (120) to open or close the outlet (1202) of the material carrying tray (120).

3. The rotary kiln material lifting device (10) according to claim 2, characterized in that: The movable flap (130) includes a rotating shaft (1310) and a material-blocking plate (1320), wherein the rotating shaft (1310) is horizontally placed at the outlet (1202) of the material-carrying tray (120), and each end of the rotating shaft (1310) is rotatably connected to one of the material-blocking edges (1220); the material-blocking plate (1320) is fixedly arranged on the rotating shaft (1310) and rotates at the outlet (1202) of the material-carrying tray (120).

4. The rotary kiln material lifting device (10) according to claim 3, characterized in that: The rotating shaft (1310) is arranged away from the material lifting plate (1210).

5. The rotary kiln material lifting device (10) according to claim 3, characterized in that: Each of the material-blocking edges (1220) is provided with a rotating hole (1221); each end of the rotating shaft (1310) rotates through a rotating hole (1221) and forms a limiting protrusion (1311) on the outer side of the material-carrying tray (120).

6. The rotary kiln material lifting device (10) according to claim 1, characterized in that: The plane where the lifting plate (1210) is located passes through the central axis of the rotating cylinder (110).

7. The rotary kiln material lifting device (10) according to claim 1, characterized in that: The two material blocking edges (1220) are parallel to each other and perpendicular to the material lifting plate (1210).

8. The rotary kiln material lifting device (10) according to claim 1, characterized in that: There are multiple material carriers (120), and the multiple material carriers (120) are arranged at intervals on the inner wall of the rotating cylinder (110).

9. The rotary kiln material lifting device (10) according to claim 8, characterized in that: The plurality of material carriers (120) are distributed equidistantly in the axial direction of the rotating cylinder (110).

10. The rotary kiln material lifting device (10) according to claim 8, characterized in that: The plurality of material carriers (120) are distributed equidistantly in the circumferential direction of the rotating cylinder (110).

Images