Device and method for recycling heat energy of lithium ore roasting

Abstract

This application relates to the field of roasting waste heat utilization technology, specifically disclosing an apparatus and method for recycling the heat energy of lithium ore roasting. The apparatus includes a preheating cylinder with heat-conducting plates installed on its inner wall to receive waste heat from the lithium ore roasting process. A lithium ore storage mechanism is installed within the preheating cylinder, comprising: a first storage component including a tumbling assembly and a first vibrating screening assembly, wherein the tumbling assembly flips large-sized lithium ore for rapid preheating; a second storage component including a second vibrating screening assembly, wherein the second vibrating screening assembly flips medium-sized lithium ore for rapid preheating; and a third storage component for receiving small-sized lithium ore falling from the second storage component. The lithium ore storage mechanism stores lithium ore in layers according to its size and performs targeted treatment on each layer to improve the efficiency of waste heat absorption, thereby improving preheating efficiency.

Description

Technical Field

[0001] This application relates to the field of roasting waste heat utilization technology, and in particular to an apparatus and method for recycling lithium ore roasting heat energy. Background Technology

[0002] Rotary kilns can be classified into cement kilns, metallurgical and chemical kilns, and lime kilns according to the different materials they process. Metallurgical and chemical kilns are mainly used in the metallurgical industry for magnetizing roasting of lean iron ore in steel plants; oxidizing roasting of chromium and nickel iron ore; and lithium ore roasting rotary kilns are a type of metallurgical and chemical kiln.

[0003] The lithium ore roasting process requires preheating before roasting in a roasting furnace. Roasting lithium ore requires a large amount of heat, but much of this heat is not effectively utilized, resulting in resource waste. Furthermore, because some lithium ore particles are relatively large, heat cannot penetrate the ore's interior, leading to prolonged preheating times and low preheating efficiency. Summary of the Invention

[0004] This application provides a device and method for recycling the heat energy from lithium ore roasting. This solves the technical problems in the prior art where roasting lithium ore requires a large amount of heat, but most of this heat cannot be effectively utilized, resulting in resource waste. Furthermore, because some lithium ores are large in size, heat cannot easily penetrate their interior, leading to a longer preheating time and lower preheating efficiency. This application achieves the recovery and recycling of waste heat. Additionally, by storing lithium ore in layers according to its size and processing it accordingly, large and medium-sized lithium ores are flipped over, improving the efficiency of waste heat absorption and thus enhancing preheating efficiency.

[0005] This application provides a device for recycling the heat energy from lithium ore roasting, including a preheating cylinder. The inner wall of the preheating cylinder is provided with heat-conducting plates for receiving waste heat during the lithium ore roasting process. The preheating cylinder also includes a lithium ore storage mechanism, which comprises:

[0006] The first storage component is used to screen lithium ore and receive large-sized lithium ore after screening. The first storage component includes a tumbling assembly and a first vibrating screening assembly. The tumbling assembly turns the large-sized lithium ore over and preheats it quickly.

[0007] The second storage component is used to receive medium-sized lithium ore falling from the first storage component. The second storage component includes a second vibrating screening assembly. The operation of the second vibrating screening assembly causes the medium-sized lithium ore to be flipped over and quickly preheated.

[0008] A third storage component is used to receive small-sized lithium ore that falls from the second storage component.

[0009] Furthermore, the first storage component also includes a first holding tray;

[0010] The first holding tray is used to receive lithium ore fed into the preheating cylinder. The first holding tray is provided with a plurality of first screen holes, which are used for the small and medium-sized portions of the lithium ore to pass through.

[0011] The first vibrating screening component is connected to the first holding tray. The first vibrating screening component is used to drive the first holding tray and lithium ore to vibrate and screen out small and medium-sized parts of the lithium ore.

[0012] The tumbling assembly is connected to the first vibrating screening assembly. The tumbling assembly is used to drive the first vibrating screening assembly to move upward and then move horizontally when it reaches the highest point, so that the lithium ore is thrown upward and flipped over by the horizontal driving force during the throwing process, so as to absorb residual heat.

[0013] Furthermore, the tumbling assembly includes a square-shaped tumbling base located directly below the first holding tray. A translation plate is provided above the two longitudinal sides of the tumbling base, and a translation groove is provided on the side of the translation plate. A translation slide block is slidably disposed in the translation groove, and the first vibration screening assembly is installed between the two translation slide blocks.

[0014] The tumbling base is equipped with tumbling brackets at each of the four corners. A first tumbling shaft is mounted on each tumbling bracket. The first tumbling shaft is horizontally positioned. A first tumbling motor is connected to one end of the first tumbling shaft, and a first tumbling elliptical disk is connected to the other end of the first tumbling shaft.

[0015] Furthermore, a first tumbling telescopic cylinder is vertically arranged above the first tumbling elliptical disk. The outer wall of the first tumbling telescopic cylinder is connected to the tumbling support through a bracket. A first tumbling telescopic rod is movably arranged in the first tumbling telescopic cylinder. The upper end of the first tumbling telescopic rod extends out of the first tumbling telescopic cylinder and is connected to the translation plate.

[0016] A first rolling fixing ring seat is provided in the middle of the outer wall of the first rolling telescopic cylinder. A first rolling tension spring is provided between the first rolling fixing ring seat and the translation plate. Under the tension of the first rolling tension spring, the lower end of the first rolling telescopic rod extends out of the first rolling telescopic cylinder and abuts against the first rolling elliptical disk.

[0017] Furthermore, a longitudinal support frame is provided at the edge of one end of the translation plate, and a second tumbling shaft is provided on the longitudinal support frame. The second tumbling shaft is arranged horizontally, a second tumbling motor is connected to one end of the second tumbling shaft, and a second tumbling elliptical disk is connected to the other end of the second tumbling shaft.

[0018] A drive block is provided at the end of the translation slide, and a second tumbling telescopic cylinder is provided between the drive block and the second tumbling elliptical disk. The second tumbling telescopic cylinder is arranged horizontally and longitudinally and is connected to the longitudinal support frame.

[0019] Furthermore, a second rolling telescopic rod is movably disposed in the second rolling telescopic cylinder, both ends of which extend out of the second rolling telescopic cylinder. One end of the second rolling telescopic rod is connected to the drive block, and the other end abuts against the second rolling elliptical disk. A second rolling fixing ring seat is disposed in the middle of the outer wall of the second rolling telescopic cylinder, and a second rolling tension spring is disposed between the second rolling fixing ring seat and the first holding tray.

[0020] Under the tension of the second rolling tension spring, the lower end of the second rolling telescopic rod extends out of the second rolling telescopic cylinder and abuts against the second rolling elliptical disk.

[0021] Furthermore, the second storage component also includes a second holding tray, on which a plurality of second sieve holes are provided;

[0022] The third storage component includes a third holding tray, which is used to receive small-sized lithium ore falling from the second storage component.

[0023] Another aspect of this application provides a method for recycling the heat energy from lithium ore roasting, comprising the following steps:

[0024] S1. The residual heat from the lithium ore roasting process is introduced into the preheating cylinder through a heat-conducting plate, thereby raising the internal temperature of the preheating cylinder.

[0025] S2. The lithium ore is fed into the lithium ore storage mechanism in the preheating cylinder for preheating treatment;

[0026] S3. After the predetermined time is reached, the lithium ore in the lithium ore storage mechanism is taken out and sent into the lithium ore roasting furnace to achieve the preheating treatment of lithium ore roasting.

[0027] Furthermore, on the first holding tray in the lithium ore storage mechanism, the first vibrating screening component drives the first holding tray and the lithium ore to vibrate, so that the small and medium-sized parts of the lithium ore pass through the first screen holes, while the large-sized parts remain in the first holding tray.

[0028] Then, the tumbling component moves, causing the first vibrating screening component to move upward. When the first vibrating screening component moves to its highest point, it moves horizontally, so that the lithium ore is thrown upward and subjected to the horizontal driving force during the throwing process, thereby achieving flipping and allowing the lithium ore to absorb residual heat.

[0029] Small and medium-sized lithium ore falls into the second holding tray. The second vibrating screening component drives the second holding tray and the lithium ore to vibrate. The small-sized part of the lithium ore passes through the second screen holes, while the medium-sized part remains in the second holding tray. The second vibrating screening component continues to drive the second holding tray to vibrate, causing the lithium ore to be thrown upwards continuously. Because the surface of the lithium ore is uneven and the medium-sized lithium ore has a small mass, it is thrown upwards to a greater height. During the process of the lithium ore being thrown upwards continuously, it can be flipped over, so that the lithium ore can absorb residual heat.

[0030] Small lithium ore pieces fall into the third container. Because of their small size, they can absorb residual heat quickly without needing to be turned over.

[0031] The technical solution provided in this application has at least the following technical effects or advantages:

[0032] Because of the lithium ore storage mechanism, which stores lithium ore in layers according to its size and performs targeted treatment on each layer, large lithium ore is turned over by a tumbling component, medium-sized lithium ore is turned over by a second vibrating screening component, and small lithium ore is not treated with a structure. This allows lithium ore of different sizes to absorb waste heat more evenly, improving the efficiency of waste heat absorption and thus improving preheating efficiency. Attached Figure Description

[0033] Figure 1 This is an overall schematic diagram of the apparatus for recycling lithium ore roasting heat energy in the embodiments of this application.

[0034] Figure 2 This is a schematic diagram of the lithium ore storage mechanism in the embodiments of this application;

[0035] Figure 3 This is a schematic diagram of the structure of the first storage component in the embodiment of this application;

[0036] Figure 4 This is a schematic diagram of the structure of the first vibration screening component in the embodiments of this application;

[0037] Figure 5 This is an implementation method of the present application. Figure 4 Enlarged schematic diagram of the structure at point A;

[0038] Figure 6 This is a schematic diagram of the tumbling assembly in the embodiments of this application;

[0039] Figure 7 This is an implementation method of the present application. Figure 6 Enlarged schematic diagram of the structure at point B;

[0040] Figure 8 This is another perspective view of the tumbling component in the embodiments of this application;

[0041] Figure 9 This is a schematic diagram of the structure of the second vibration screening component in the embodiments of this application;

[0042] Figure 10 This is an implementation method of the present application. Figure 9 An enlarged schematic diagram of the structure at point C.

[0043] In the diagram: 1. Preheating cylinder; 2. Lithium ore storage mechanism; 3. Storage support; 4. First storage component; 5. Second storage component; 6. Third storage component;

[0044] 40. First holding tray; 41. Tumbling assembly; 42. First vibration screening assembly;

[0045] 4001, First sieve aperture;

[0046] 4101. Tilting base; 4102. Translation plate; 4103. Translation slide; 4104. Translation slide block; 4105. Tilting bracket; 4106. First tilting shaft; 4107. First tilting motor; 4108. First tilting elliptical disc; 4109. First tilting telescopic cylinder; 4110. First tilting telescopic rod; 4111. First tilting fixing ring seat; 4112. First tilting tension spring; 4113. Longitudinal support frame; 4114. Second tilting shaft; 4115. Second tilting motor; 4116. Second tilting elliptical disc; 4117. Drive block; 4118. Second tilting telescopic cylinder; 4119. Second tilting telescopic rod; 4120. Second tilting fixing ring seat; 4121. Second tilting tension spring;

[0047] 4201, First vibration base; 4202, First vibration bracket; 4203, First vibration shaft; 4204, First vibration motor; 4205, First vibration elliptical disk; 4206, First vibration telescopic cylinder; 4207, First vibration telescopic rod; 4208, First vibration fixing ring seat; 4209, First vibration tension spring;

[0048] 50. Second holding tray; 51. Second vibrating screening assembly;

[0049] 5001, Second sieve aperture;

[0050] 5101. Second vibration base; 5102. Second vibration bracket; 5103. Second vibration shaft; 5104. Second vibration motor; 5105. Second vibration elliptical disk; 5106. Second vibration telescopic cylinder; 5107. Second vibration telescopic rod; 5108. Second vibration fixing ring seat; 5109. Second vibration tension spring;

[0051] 60. The third serving dish. Detailed Implementation

[0052] This application discloses an apparatus and method for recycling the heat energy from lithium ore roasting. It employs a lithium ore storage mechanism 2, which stores lithium ore in layers according to its size and performs targeted processing on each layer. Large-sized lithium ore is turned over by a tumbling component 41, medium-sized lithium ore is turned over by a second vibration screening component 51, and small-sized lithium ore is not subjected to any structure. This allows lithium ore of different sizes to absorb waste heat more evenly, improving the efficiency of waste heat absorption and thus improving preheating efficiency.

[0053] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0054] Example 1, refer to Figures 1 to 10 The present application provides a device for recycling the heat energy of lithium ore roasting, including a preheating cylinder 1, with heat-conducting plates arranged on the inner wall of the preheating cylinder 1 for receiving the waste heat during the lithium ore roasting process, and a lithium ore storage mechanism 2 arranged in the preheating cylinder 1.

[0055] Specifically, refer to Figure 2 The lithium ore storage mechanism 2 includes a first storage component 4, a second storage component 5, and a third storage component 6. The first storage component 4 is used to screen lithium ore and receive large-sized lithium ore after screening. The first storage component 4 includes a tumbling assembly 41 and a first vibrating screening assembly 42. The tumbling assembly 41 turns the large-sized lithium ore over and preheats it quickly. The second storage component 5 is used to receive medium-sized lithium ore falling from the first storage component 4. The second storage component 5 includes a second vibrating screening assembly 51. The second vibrating screening assembly 51 turns the medium-sized lithium ore over and preheats it quickly. The third storage component 6 is used to receive small-sized lithium ore falling from the second storage component 5.

[0056] It should be noted that, referring to Figure 2In this embodiment, the lithium ore storage mechanism 2 also includes a storage support 3, which is installed in the preheating cylinder 1. The first storage component 4 is disposed on the top of the storage support 3, the second storage component 5 is disposed on the storage support 3 and located below the first storage component 4, and the third storage component 6 is disposed on the storage support 3 and located below the second storage component 5.

[0057] Specifically, refer to Figure 3 The first storage component 4 also includes a first holding tray 40, which is used to receive lithium ore fed into the preheating cylinder 1. The first holding tray 40 is provided with a plurality of first screen holes 4001, which are used to allow the small and medium-sized portions of the lithium ore to pass through. A first vibrating screening component 42 is connected to the first holding tray 40 and is used to drive the first holding tray 40 and the lithium ore to vibrate, thereby removing the small and medium-sized portions of the lithium ore. A tumbling component 41 is connected to the first vibrating screening component 42 and is used to drive the first vibrating screening component 42 to move upward and then to move horizontally when it reaches the highest point, so that the lithium ore is thrown upward and flipped over by the horizontal driving force during the upward throwing process, so as to absorb residual heat.

[0058] Furthermore, referring to Figures 6 to 8 The tumbling assembly 41 includes a square-shaped tumbling base 4101, which is located directly below the first holding tray 40. A translation plate 4102 is provided above the two longitudinal sides of the tumbling base 4101. A translation groove 4103 is provided on the side of the translation plate 4102. A translation slide block 4104 is slidably arranged in the translation groove 4103. The first vibration screening assembly 42 is installed between the two translation slide blocks 4104.

[0059] A tumbling bracket 4105 is provided at each of the four corners of the tumbling base 4101. A first tumbling shaft 4106 is provided on the tumbling bracket 4105. The first tumbling shaft 4106 is arranged horizontally. A first tumbling motor 4107 is connected to one end of the first tumbling shaft 4106, and a first tumbling elliptical disk 4108 is connected to the other end of the first tumbling shaft 4106.

[0060] A first rolling telescopic cylinder 4109 is vertically arranged above the first rolling elliptical disk 4108. The outer wall of the first rolling telescopic cylinder 4109 is connected to the rolling bracket 4105 through a bracket. A first rolling telescopic rod 4110 is movably arranged in the first rolling telescopic cylinder 4109. The upper end of the first rolling telescopic rod 4110 extends out of the first rolling telescopic cylinder 4109 and is connected to the translation plate 4102. A first rolling fixing ring seat 4111 is arranged in the middle of the outer wall of the first rolling telescopic cylinder 4109. A first rolling tension spring 4112 is arranged between the first rolling fixing ring seat 4111 and the translation plate 4102. Under the tension of the first rolling tension spring 4112, the lower end of the first rolling telescopic rod 4110 extends out of the first rolling telescopic cylinder 4109 and abuts against the first rolling elliptical disk 4108.

[0061] Furthermore, referring to Figures 6 to 8 A longitudinal support frame 4113 is provided at the edge of one end of the translation plate 4102. A second tumbling shaft 4114 is provided on the longitudinal support frame 4113. The second tumbling shaft 4114 is arranged horizontally. A second tumbling motor 4115 is connected to one end of the second tumbling shaft 4114, and a second tumbling elliptical disk 4116 is connected to the other end of the second tumbling shaft 4114. A drive block 4117 is provided at the end of the translation slide 4104. A second tumbling telescopic cylinder 4118 is provided between the drive block 4117 and the second tumbling elliptical disk 4116. The second tumbling telescopic cylinder 4118 is arranged horizontally and longitudinally and is connected to the longitudinal support frame 4113.

[0062] The second tumbling telescopic cylinder 4118 contains a movably mounted second tumbling telescopic rod 4119. Both ends of the second tumbling telescopic rod 4119 extend out of the second tumbling telescopic cylinder 4118. One end of the second tumbling telescopic rod 4119 is connected to the drive block 4117, and the other end abuts against the second tumbling elliptical disk 4116. A second tumbling fixing ring seat 4120 is provided in the middle of the outer wall of the second tumbling telescopic cylinder 4118. A second tumbling tension spring 4121 is provided between the second tumbling fixing ring seat 4120 and the first holding tray 40. Under the tension of the second tumbling tension spring 4121, the lower end of the second tumbling telescopic rod 4119 extends out of the second tumbling telescopic cylinder 4118 and abuts against the second tumbling elliptical disk 4116.

[0063] When the tumbling assembly 41 in this embodiment is working, the first tumbling motor 4107 drives the first tumbling shaft 4106 and the first tumbling elliptical disk 4108 to rotate, which in turn causes the first tumbling telescopic rod 4110 to rise and fall. The rise and fall of the first tumbling telescopic rod 4110 drives the translation plate 4102 to rise and fall, which in turn causes the translation slide 4104, the first vibrating screening assembly 42, the first holding tray 40 and the lithium ore to rise and fall, so that the lithium ore is continuously thrown up and fallen.

[0064] During the upward throwing of lithium ore, the second tumbling motor 4115 drives the second tumbling shaft 4114 and the second tumbling elliptical disk 4116 to rotate, thereby causing the second tumbling telescopic rod 4119 to extend and retract longitudinally. The second tumbling telescopic rod 4119 drives the drive block 4117, the translation slide 4104, the first vibrating screening component 42, the first holding tray 40, and translation, that is, applying a horizontal driving force to the lithium ore during the upward throwing process, thereby turning the lithium ore over, changing the contact position between the lithium ore and the first holding tray 40, making it absorb heat evenly and improving the preheating efficiency.

[0065] It is worth noting that when the tumbling component 41 of this embodiment is working, the lithium ore remaining in the first holding tray 40 is large in size and has a large mass. The height it is thrown up is not large, so it is difficult to flip it when it falls. The tumbling component 41 can not only drive the lithium ore to be thrown up, but also apply a horizontal driving force to it during the process of throwing the lithium ore up, thereby achieving flipping.

[0066] Furthermore, referring to Figure 4 and Figure 5 The first vibration screening component 42 includes a square frame-shaped first vibration base 4201, with a first vibration bracket 4202 at each of the four corners of the first vibration base 4201. A first vibration shaft 4203 is mounted on the first vibration bracket 4202. The first vibration shaft 4203 is horizontally positioned, with a first vibration motor 4204 connected to one end of the first vibration shaft 4203 and a first vibration elliptical disk 4205 connected to the other end of the first vibration shaft 4203.

[0067] A first vibrating telescopic cylinder 4206 is vertically arranged above the first vibrating elliptical disk 4205. The first vibrating telescopic cylinder 4206 is connected to the first vibrating support 4202. A first vibrating telescopic rod 4207 is movably arranged in the first vibrating telescopic cylinder 4206. The upper end of the first vibrating telescopic rod 4207 extends out of the first vibrating telescopic cylinder 4206 and connects to the corner of the first holding tray 40. A first vibrating fixing ring seat 4208 is arranged in the middle of the outer wall of the first vibrating telescopic cylinder 4206. A first vibrating tension spring 4209 is arranged between the first vibrating fixing ring seat 4208 and the first holding tray 40. Under the tension of the first vibrating tension spring 4209, the lower end of the first vibrating telescopic rod 4207 extends out of the first vibrating telescopic cylinder 4206 and abuts against the first vibrating elliptical disk 4205.

[0068] In the first vibration screening assembly 42 of this embodiment, the first vibration motor 4204 drives the first vibration shaft 4203 and the first vibration elliptical disk 4205 to rotate, thereby causing the first vibration telescopic rod 4207 to rise and fall. The rise and fall of the first vibration telescopic rod 4207 drives the first holding tray 40 and the lithium ore to rise and fall, so that the lithium ore is continuously thrown up and down, thus achieving vibration. Since the surface of the lithium ore is uneven, its landing point will continuously change during continuous vibration. That is, the lithium ore will shift during vibration. When the small and medium-sized parts of the lithium ore move to the first screen hole 4001, they will fall from the first screen hole 4001 to the second storage component 5, where they are received and processed.

[0069] Furthermore, referring to Figure 9 The second storage component 5 in this embodiment also includes a second holding tray 50. The second holding tray 50 is provided with a plurality of second sieve holes 5001. The second holding tray 50 is used to receive small and medium-sized lithium ore falling from the first storage component 4. The second holding tray 50 is provided with a plurality of second sieve holes 5001. The second sieve holes 5001 are used for small-sized portions of lithium ore to pass through.

[0070] Specifically, refer to Figure 9 and Figure 10 The second vibrating screening component 51 is connected to the second holding tray 50. The second vibrating screening component 51 is used to drive the second holding tray 50 and the lithium ore to vibrate, screen out small-sized parts of the lithium ore, and at the same time turn the lithium ore over during the vibration process.

[0071] Reference Figure 10 The second vibration screening component 51 in this embodiment includes a square-shaped second vibration base 5101. A second vibration bracket 5102 is provided at each of the four corners of the second vibration base 5101. A second vibration rotating shaft 5103 is provided on the second vibration bracket 5102. The second vibration rotating shaft 5103 is horizontally positioned. One end of the second vibration rotating shaft 5103 is connected to a second vibration motor 5104, and the other end is connected to a second vibration elliptical disk 5105. A second vibration telescopic cylinder 5106 is vertically positioned above the second vibration elliptical disk 5105. The second vibration telescopic cylinder 5106 is connected to the second vibration bracket 5102. A second vibration telescopic rod 5107 is movably disposed within the second vibration telescopic cylinder 5106. The upper end of the second vibration telescopic rod 5107 extends out of the second vibration telescopic cylinder 5106 and connects to a corner of the second holding tray 50.

[0072] The second vibration telescopic cylinder 5106 has a second vibration fixing ring seat 5108 in the middle of its outer wall. A second vibration tension spring 5109 is provided between the second vibration fixing ring seat 5108 and the second holding tray 50. Under the tension of the second vibration tension spring 5109, the lower end of the second vibration telescopic rod 5107 extends out of the second vibration telescopic cylinder 5106 and abuts against the second vibration elliptical disk 5105.

[0073] In the second vibration screening assembly 51 of this embodiment, the second vibration motor 5104 drives the second vibration shaft 5103 and the second vibration elliptical disk 5105 to rotate, thereby causing the second vibration telescopic rod 5107 to rise and fall. The rise and fall of the second vibration telescopic rod 5107 drives the second holding tray 50 and the lithium ore to rise and fall, so that the lithium ore is continuously thrown up and down to achieve vibration. Since the surface of the lithium ore is uneven, its landing point will change continuously during continuous vibration. That is, the lithium ore will be displaced during vibration. When the small part of the lithium ore moves to the second screen hole 5001, it will fall from the second screen hole 5001 to the third storage component 6, where it is received and processed.

[0074] Furthermore, the third storage component 6 in this embodiment includes a third holding tray 60, which is used to receive small-sized lithium ore falling from the second storage component 5.

[0075] The lithium ore roasting heat energy recycling device of this embodiment introduces the waste heat from the lithium ore roasting process into the preheating cylinder 1 through heat-conducting plates, raising the internal temperature of the preheating cylinder 1. Then, the lithium ore is sent into the lithium ore storage mechanism 2 in the preheating cylinder 1 for preheating treatment. The lithium ore is stored in layers in the lithium ore storage mechanism 2. Lithium ore of different sizes mixed together first falls onto the first storage component 4. After being vibrated and screened by the first vibrating screening component 42, the small and medium-sized portions of the lithium ore fall into the second storage component 5. After being vibrated and screened by the second vibrating screening component 51, the small-sized portions of the lithium ore fall into the third storage component 6. At this time, the large-sized lithium ore is located in the first storage component 4, the medium-sized lithium ore is located in the second storage component 5, and the small-sized lithium ore is located in the third storage component 6.

[0076] The tumbling assembly 41 in the first storage component 4 drives the lithium ore upward and applies a horizontal driving force to it during the upward throwing process, thereby turning the lithium ore over and changing the contact position between the lithium ore and the first holding tray 40, so that it absorbs heat evenly and improves the preheating efficiency.

[0077] The second vibration screening component 51 in the second storage component 5 drives the lithium ore to vibrate. The vibration of the lithium ore is characterized by continuous upward and downward throwing. Since the surface of the lithium ore is uneven and the mass of medium-sized lithium ore is small, the upward throwing height is large. During the continuous upward throwing of the lithium ore, it can be flipped, changing the contact position between the lithium ore and the first holding tray 40, so that it can absorb heat evenly and improve the preheating efficiency.

[0078] The lithium ore in the third storage component 6 is small in size and can absorb residual heat quickly without needing to be turned over.

[0079] Therefore, the lithium ore storage mechanism 2 of this embodiment stores lithium ore in layers according to the size of the lithium ore, and performs targeted treatment on the lithium ore in each layer. For large-sized lithium ore, the tumbling component 41 is used to turn the lithium ore over. For medium-sized lithium ore, the second vibration screening component 51 is used to turn the lithium ore over. No structure is set for small-sized lithium ore, so that lithium ore of different sizes can absorb waste heat more evenly, thereby improving the efficiency of waste heat absorption, that is, improving the preheating efficiency.

[0080] Example 2, refer to Figures 1 to 10 This application provides a method for recycling the heat energy from lithium ore roasting, comprising the following steps:

[0081] S1. The residual heat from the lithium ore roasting process is introduced into the preheating cylinder 1 through the heat-conducting plate, so that the internal temperature of the preheating cylinder 1 is increased.

[0082] S2. The lithium ore is fed into the lithium ore storage mechanism 2 in the preheating cylinder 1 for preheating treatment;

[0083] S2. After the predetermined time is reached, the lithium ore in the lithium ore storage device 2 is taken out and sent into the lithium ore roasting furnace to achieve the preheating treatment of lithium ore roasting.

[0084] It should be noted that in the first holding tray 40 of the lithium ore storage mechanism 2, the first vibrating screening component 42 drives the first holding tray 40 and the lithium ore to vibrate, so that the small and medium-sized parts of the lithium ore pass through the first screen hole 4001, while the large-sized parts remain in the first holding tray 40.

[0085] Then, the tumbling component 41 moves, causing the first vibrating screening component 42 to move upward. When the first vibrating screening component 42 moves to the highest point, it moves horizontally, so that the lithium ore is thrown upward and is driven by the horizontal movement during the throwing process, thereby achieving flipping so that the lithium ore can absorb residual heat.

[0086] Small and medium-sized lithium ore falls into the second holding tray 50. The second vibrating screening component 51 drives the second holding tray 50 and the lithium ore to vibrate. The small-sized part of the lithium ore passes through the second screen hole 5001, while the medium-sized part remains in the second holding tray 50. The second vibrating screening component 51 continues to drive the second holding tray 50 to vibrate, causing the lithium ore to be continuously thrown upwards. Because the surface of the lithium ore is uneven and the medium-sized lithium ore has a small mass, it is thrown upwards to a greater height. During the continuous upward throwing process, the lithium ore can be flipped over to facilitate the absorption of residual heat.

[0087] Small lithium ore falls into the third holding pan 60. Because of its small size, the lithium ore can absorb residual heat quickly without being turned over.

[0088] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0089] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A device for recycling the heat energy from lithium ore roasting, comprising a preheating cylinder (1), wherein heat-conducting plates are disposed on the inner wall of the preheating cylinder (1) for receiving waste heat during the lithium ore roasting process, characterized in that, The preheating cylinder (1) is equipped with a lithium ore storage mechanism (2), which includes: The first storage component (4) is used to screen lithium ore and receive large-sized lithium ore after screening. The first storage component (4) includes a tumbling assembly (41) and a first vibrating screening assembly (42). The tumbling assembly (41) turns the large-sized lithium ore over and preheats it quickly. The second storage component (5) is used to receive medium-sized lithium ore falling from the first storage component (4). The second storage component (5) includes a second vibrating screening component (51). The second vibrating screening component (51) is activated to turn the medium-sized lithium ore over and preheat it quickly. The third storage component (6) is used to receive small lithium ore falling from the second storage component (5); The first storage component (4) also includes a first holding tray (40); The first holding tray (40) is used to receive lithium ore fed into the preheating cylinder (1). The first holding tray (40) is provided with a plurality of first sieve holes (4001). The first sieve holes (4001) are used for the small and medium-sized parts of the lithium ore to pass through. The first vibration screening component (42) is connected to the first holding tray (40). The first vibration screening component (42) is used to drive the first holding tray (40) and lithium ore to vibrate and screen out small and medium-sized parts of lithium ore. The tumbling assembly (41) is connected to the first vibration screening assembly (42). The tumbling assembly (41) is used to drive the first vibration screening assembly (42) to move upward and to move horizontally when it reaches the highest point, so that the lithium ore is thrown upward and flipped over by the horizontal driving force during the throwing process, so as to absorb residual heat.

2. The apparatus for recycling lithium ore roasting heat energy as described in claim 1, characterized in that, The tumbling assembly (41) includes a square tumbling base (4101) located directly below the first holding tray (40). A translation plate (4102) is provided above the two longitudinal sides of the tumbling base (4101). A translation groove (4103) is provided on the side of the translation plate (4102). A translation slide block (4104) is slidably disposed in the translation groove (4103). The first vibration screening assembly (42) is installed between the two translation slide blocks (4104). The tumbling base (4101) is provided with tumbling brackets (4105) at each of the four corners. A first tumbling shaft (4106) is provided on the tumbling bracket (4105). The first tumbling shaft (4106) is arranged horizontally. A first tumbling motor (4107) is connected to one end of the first tumbling shaft (4106), and a first tumbling elliptical disk (4108) is connected to the other end of the first tumbling shaft (4106).

3. The apparatus for recycling lithium ore roasting heat energy as described in claim 2, characterized in that, A first tumbling telescopic cylinder (4109) is vertically arranged above the first tumbling elliptical disk (4108). The outer wall of the first tumbling telescopic cylinder (4109) is connected to the tumbling bracket (4105) through a bracket. A first tumbling telescopic rod (4110) is movably arranged in the first tumbling telescopic cylinder (4109). The upper end of the first tumbling telescopic rod (4110) extends out of the first tumbling telescopic cylinder (4109) and is connected to the translation plate (4102). A first rolling fixing ring seat (4111) is provided in the middle of the outer wall of the first rolling telescopic cylinder (4109). A first rolling tension spring (4112) is provided between the first rolling fixing ring seat (4111) and the translation plate (4102). Under the tension of the first rolling tension spring (4112), the lower end of the first rolling telescopic rod (4110) extends out of the first rolling telescopic cylinder (4109) and abuts against the first rolling elliptical disk (4108).

4. The apparatus for recycling lithium ore roasting heat energy as described in claim 3, characterized in that, A longitudinal support frame (4113) is provided at the edge of one end of the translation plate (4102). A second tumbling shaft (4114) is provided on the longitudinal support frame (4113). The second tumbling shaft (4114) is arranged horizontally. A second tumbling motor (4115) is connected to one end of the second tumbling shaft (4114), and a second tumbling elliptical disk (4116) is connected to the other end of the second tumbling shaft (4114). The end of the translation slide (4104) is provided with a drive block (4117), and a second tumbling telescopic cylinder (4118) is provided between the drive block (4117) and the second tumbling elliptical disk (4116). The second tumbling telescopic cylinder (4118) is arranged horizontally and longitudinally and is connected to the longitudinal support frame (4113).

5. The apparatus for recycling lithium ore roasting heat energy as described in claim 4, characterized in that, A second rolling telescopic rod (4119) is movably disposed in the second rolling telescopic cylinder (4118). Both ends of the second rolling telescopic rod (4119) extend out of the second rolling telescopic cylinder (4118). One end of the second rolling telescopic rod (4119) is connected to the drive block (4117), and the other end abuts against the second rolling elliptical disk (4116). A second rolling fixing ring seat (4120) is disposed in the middle of the outer wall of the second rolling telescopic cylinder (4118). A second rolling tension spring (4121) is disposed between the second rolling fixing ring seat (4120) and the first holding tray (40). Under the tension of the second rolling tension spring (4121), the lower end of the second rolling telescopic rod (4119) extends out of the second rolling telescopic cylinder (4118) and abuts against the second rolling elliptical disk (4116).

6. The apparatus for recycling lithium ore roasting heat energy as described in claim 1, characterized in that, The second storage component (5) also includes a second holding tray (50), on which a plurality of second sieve holes (5001) are provided; The third storage component (6) includes a third holding tray (60) for receiving small lithium ore falling from the second storage component (5).

7. A method for recycling the heat energy from lithium ore roasting, characterized in that, Includes the following steps: S1. The residual heat from the lithium ore roasting process is introduced into the preheating cylinder (1) through a heat-conducting plate, so that the internal temperature of the preheating cylinder (1) is increased. S2. The lithium ore is fed into the lithium ore storage mechanism (2) in the preheating cylinder (1) for preheating treatment; S3. After the predetermined time is reached, the lithium ore in the lithium ore storage mechanism (2) is taken out and sent into the lithium ore roasting furnace to achieve the preheating treatment of lithium ore roasting.

8. A method for recycling lithium ore roasting heat energy as described in claim 7, characterized in that, On the first holding tray (40) in the lithium ore storage mechanism (2), the first vibrating screening component (42) drives the first holding tray (40) and the lithium ore to vibrate, so that the small and medium-sized parts of the lithium ore pass through the first screen hole (4001), and the large-sized parts remain in the first holding tray (40); Then the tumbling assembly (41) moves to drive the first vibrating screening assembly (42) to move upward. When the first vibrating screening assembly (42) moves to the highest point, it drives the first vibrating screening assembly (42) to move horizontally, so that the lithium ore is thrown upward and is driven by the horizontal movement during the throwing process, thereby achieving flipping, so that the lithium ore can absorb residual heat. Small and medium-sized lithium ore falls into the second holding tray (50). The second vibrating screening component (51) drives the second holding tray (50) and the lithium ore to vibrate. The small-sized part of the lithium ore passes through the second screen hole (5001), while the medium-sized part remains in the second holding tray (50). The second vibrating screening component (51) continues to drive the second holding tray (50) to vibrate, causing the lithium ore to be thrown upwards continuously. Since the surface of the lithium ore is uneven and the medium-sized lithium ore has a small mass, the upward throwing height is large. During the continuous upward throwing process of the lithium ore, it can be flipped over so that the lithium ore can absorb residual heat. Small lithium ore falls into the third holding pan (60). Because of its small size, the small lithium ore can absorb residual heat quickly without being turned over.

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