Device and method for cyclic utilization of lithium ore roasting heat energy

Abstract

The invention relates to the technical field of roasting waste heat utilization, and particularly discloses a lithium ore roasting heat energy cyclic utilization device and method.The device comprises a preheating cylinder, heat conduction pieces are arranged on the inner wall of the preheating cylinder and used for receiving waste heat in the lithium ore roasting process, and a lithium ore storage mechanism is arranged in the preheating cylinder; the lithium ore storage mechanism comprises a first storage part and a second storage part, the first storage part comprises a rolling assembly and a first vibration screening assembly, the rolling assembly acts to turn over the large-size lithium ore so that the large-size lithium ore can be rapidly preheated, and the second storage part comprises a second vibration screening assembly. The second vibration screening assembly acts to turn over the lithium ore with the medium size to be rapidly preheated, the third storage component is used for receiving the lithium ore with the small size falling down from the second storage component, and the lithium ore storage mechanism stores the lithium ore in a layered mode according to the size of the lithium ore and conducts targeted treatment on the lithium ore on each layer. And the waste heat absorption efficiency is improved, so that the preheating efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of roasting waste heat utilization, and in particular to a device and method for recycling heat energy from lithium ore roasting. Background Art

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

[0003] During the lithium ore roasting process, the lithium ore needs to be preheated, and then roasted in a lithium ore roaster. Roasting lithium ore requires a lot of heat, but most of the heat cannot be effectively used, resulting in a waste of resources. At the same time, due to the large size of some lithium ores, it is difficult for heat to enter the lithium ore, resulting in a long time to achieve a better preheating effect, resulting in low preheating efficiency. Summary of the invention

[0004] The present application provides a device and method for recycling heat energy from roasting lithium ore, thereby solving the problem in the prior art that roasting lithium ore requires a large amount of heat, but most of the heat cannot be effectively utilized, resulting in a waste of resources. At the same time, since some lithium ores are large in size, it is difficult for heat to enter the interior of the lithium ore, resulting in a long time to achieve a better preheating effect, resulting in a low preheating efficiency. The application realizes the recycling of waste heat, and at the same time, the lithium ore is stored in layers according to its size, and the lithium ore is processed in a targeted manner, so that large and medium-sized lithium ores are turned over, thereby improving the efficiency of absorbing waste heat, thereby improving the preheating efficiency.

[0005] The present application provides a device for recycling heat energy from lithium ore roasting, comprising a preheating cylinder, the inner wall of which is provided with a heat conducting sheet, the heat conducting sheet being used to receive waste heat during the lithium ore roasting process, and a lithium ore storage mechanism being provided in the preheating cylinder, the lithium ore storage mechanism comprising:

[0006] A first storage component, the first storage component is used to screen lithium ore and receive the large-sized lithium ore after screening, the first storage component comprises a tumbling assembly and a first vibrating screening assembly, the tumbling assembly is operated to turn the large-sized lithium ore over and quickly preheat it;

[0007] a second storage component, the second storage component is used to receive the medium-sized lithium ore dropped from the first storage component, the second storage component comprises a second vibrating screening assembly, the second vibrating screening assembly is operated to turn over the medium-sized lithium ore for rapid preheating;

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

[0009] Further, the first storage component further includes a first storage tray;

[0010] The first storage tray is used to receive the lithium ore conveyed into the preheating cylinder. A number of first sieve holes are provided on the first storage tray, and the first sieve holes are used for the medium and small-sized parts of the lithium ore to pass through;

[0011] The first vibration screening component is connected to the first storage tray, and the first vibration screening component is used to drive the first storage tray and the lithium ore to vibrate, so as to screen out the medium and small-sized parts of the lithium ore;

[0012] The tumbling component is connected to the first vibration screening component, and the tumbling component is used to drive the first vibration screening component to move upward and translate when it moves to the highest position, so that the lithium ore is thrown upward and turns over under the action of the translational driving force during the upward throwing process, so as to facilitate the absorption of waste heat.

[0013] Further, the tumbling component includes a box-shaped tumbling base, the tumbling base is located directly below the first storage tray, translation plates are arranged above the two longitudinal sides of the tumbling base, translation chutes are arranged on the side surfaces of the translation plates, translation sliders are slidably arranged in the translation chutes, and the first vibration screening component is installed between the two translation sliders;

[0014] Tumbling brackets are arranged at the four corners of the tumbling base, a first tumbling rotating shaft is arranged on the tumbling bracket, the first tumbling rotating shaft is horizontally and transversely arranged, one end of the first tumbling rotating shaft is connected to a first tumbling motor, and the other end of the first tumbling rotating shaft is connected to a first tumbling elliptical disc.

[0015] Further, a first tumbling telescopic cylinder is vertically arranged above the first tumbling elliptical disc. The outer wall of the first tumbling telescopic cylinder is connected to the tumbling bracket through a bracket. A first tumbling telescopic rod is movably arranged in the first tumbling telescopic cylinder, and 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 tumbling fixed ring seat is arranged in the middle of the outer wall of the first tumbling telescopic cylinder. A first tumbling tension spring is arranged between the first tumbling fixed ring seat and the translation plate. Under the pulling force of the first tumbling tension spring, the lower end of the first tumbling telescopic rod extends out of the first tumbling telescopic cylinder and abuts against the first tumbling elliptical disc.

[0017] Further, a longitudinal support frame is provided at the edge of one end of the translation plate. A second rolling rotating shaft is provided on the longitudinal support frame. The second rolling rotating shaft is horizontally and transversely arranged. One end of the second rolling rotating shaft is connected to a second rolling motor, and the other end of the second rolling rotating shaft is connected to a second rolling elliptical disc;

[0018] A driving block is provided at the end of the translation sliding seat. A second rolling telescopic cylinder is provided between the driving block and the second rolling elliptical disc. The second rolling telescopic cylinder is horizontally and longitudinally arranged and is connected to the longitudinal support frame.

[0019] Further, a second rolling telescopic rod is movably arranged in the second rolling telescopic cylinder. Both ends of the second rolling telescopic rod extend out of the second rolling telescopic cylinder. One end of the second rolling telescopic rod is connected to the driving block, and the other end abuts against the second rolling elliptical disc. A second rolling fixed ring seat is arranged in the middle of the outer wall of the second rolling telescopic cylinder. A second rolling tension spring is arranged between the second rolling fixed ring seat and the first storage tray;

[0020] Under the pulling force 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 disc.

[0021] Further, the second storage component further includes a second storage tray, and a plurality of second sieve holes are provided on the second storage tray;

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

[0023] On the other hand, the present application also provides a method for recycling the heat energy in the roasting of lithium ore, including the following steps:

[0024] S1. Conduct the waste heat in the lithium ore roasting process into the preheating cylinder through the heat conducting sheet to increase the temperature of the inner cavity of the preheating cylinder;

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

[0026] S3. After reaching the predetermined time, take out the lithium ore in the lithium ore storage mechanism and feed it into the lithium ore roasting furnace to realize the preheating treatment of the lithium ore roasting.

[0027] Further, on the first storage tray in the lithium ore storage mechanism, first, the first vibration screening component drives the first storage tray and the lithium ore to vibrate, so that the medium and small-sized parts in the lithium ore pass through the first sieve holes, and the large-sized parts remain in the first storage tray;

[0028] Then, the tumbling component acts to drive the first vibration screening component upward. When the first vibration screening component moves upward to the highest position, it then drives the first vibration screening component to translate, causing the lithium ore to be thrown upward and subjected to a translational driving force during the upward throw, thereby achieving turning over to facilitate the lithium ore to absorb the waste heat.

[0029] The small and medium-sized lithium ore falls onto the second storage tray. The second vibration screening component drives the second storage tray and the lithium ore to vibrate. The small-sized part of the lithium ore passes through the second sieve holes, and the medium-sized part remains in the second storage tray. The second vibration screening component continues to drive the second storage tray to vibrate, causing the lithium ore to be continuously thrown upward. Due to the uneven surface of the lithium ore and the relatively small mass of the medium-sized lithium ore, the upward throw height is relatively large. During the continuous upward throw of the lithium ore, turning over can be achieved to facilitate the lithium ore to absorb the waste heat.

[0030] The small-sized lithium ore falls onto the third storage tray. Since the size of the small-sized lithium ore is small, it can absorb the waste heat relatively quickly without turning over.

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

[0032] Due to the adoption of the lithium ore storage mechanism, the lithium ore storage mechanism stores the lithium ore in layers according to the size of the lithium ore and makes targeted treatments for the lithium ore in each layer. For the large-sized lithium ore, the tumbling component is used to turn over the lithium ore. For the medium-sized lithium ore, the second vibration screening component is used to turn over the lithium ore. No structure is set for the small-sized lithium ore, so that lithium ores of different sizes can absorb the waste heat more evenly, improving the efficiency of absorbing the waste heat, and thus enhancing the preheating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is the overall schematic diagram of the device for the cyclic utilization of heat energy in lithium ore roasting in the embodiment of this application;

[0034] Figure 2 It is the structural schematic diagram of the lithium ore storage mechanism in the embodiment of this application;

[0035] Figure 3 It is the structural schematic diagram of the first storage component in the embodiment of this application;

[0036] Figure 4 It is the structural schematic diagram of the first vibration screening component in the embodiment of this application;

[0037] Figure 5 In the embodiment of this application Figure 4 The enlarged schematic diagram of the structure at A;

[0038] Figure 6 It is the structural schematic diagram of the tumbling component in the embodiment of this application;

[0039] Figure 7 For the implementation mode of the present application Figure 6 The enlarged schematic diagram of the structure at position B in it;

[0040] Figure 8 Another perspective schematic diagram of the tumbling component in the implementation mode of the present application;

[0041] Figure 9 The structural schematic diagram of the second vibration screening component in the implementation mode of the present application;

[0042] Figure 10 For the implementation mode of the present application Figure 9 The enlarged schematic diagram of the structure at position C in it.

[0043] In the figure: 1, preheating cylinder; 2, lithium ore storage mechanism; 3, storage bracket; 4, first storage part; 5, second storage part; 6, third storage part;

[0044] 40, first holding tray; 41, tumbling component; 42, first vibration screening component;

[0045] 4001, first sieve hole;

[0046] 4101, tumbling base; 4102, translation plate; 4103, translation chute; 4104, translation slider; 4105, tumbling bracket; 4106, first tumbling rotating shaft; 4107, first tumbling motor; 4108, first tumbling elliptical disk; 4109, first tumbling telescopic cylinder; 4110, first tumbling telescopic rod; 4111, first tumbling fixed ring seat; 4112, first tumbling tension spring; 4113, longitudinal support frame; 4114, second tumbling rotating shaft; 4115, second tumbling motor; 4116, second tumbling elliptical disk; 4117, driving block; 4118, second tumbling telescopic cylinder; 4119, second tumbling telescopic rod; 4120, second tumbling fixed ring seat; 4121, second tumbling tension spring;

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

[0048] 50, second holding tray; 51, second vibration screening component;

[0049] 5001, second sieve hole;

[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 fixed ring seat; 5109, second vibration tension spring;

[0051] 60. The third serving plate. DETAILED DESCRIPTION

[0052] The embodiment of the present application discloses a device and method for recycling heat energy from lithium ore roasting, which adopts a lithium ore storage mechanism 2. The lithium ore storage mechanism 2 stores the lithium ore in layers according to the size of the lithium ore, and performs targeted treatment on the lithium ore in each layer. The large-sized lithium ore is turned over by a rolling component 41, and the medium-sized lithium ore is turned over by a second vibrating screening component 51. No structure is set for the small-sized lithium ore, so that lithium ores of different sizes can absorb waste heat more evenly, thereby improving the efficiency of absorbing waste heat, thereby improving the preheating efficiency.

[0053] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0054] Embodiment 1, refer to Figures 1 to 10 The present application provides a device for recycling heat energy from lithium ore roasting, comprising a preheating cylinder 1, on the inner wall of which a heat conducting sheet is provided, the heat conducting sheet is used to receive waste heat during the lithium ore roasting process, and a lithium ore storage mechanism 2 is provided 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 the large-sized lithium ore after screening. The first storage component 4 includes a tumbling component 41 and a first vibration screening component 42. The tumbling component 41 is operated to turn over the large-sized lithium ore and preheat it quickly. The second storage component 5 is used to receive the medium-sized lithium ore dropped from the first storage component 4. The second storage component 5 includes a second vibration screening component 51. The second vibration screening component 51 is operated to turn over the medium-sized lithium ore and preheat it quickly. The third storage component 6 is used to receive the small-sized lithium ore dropped from the second storage component 5.

[0056] It should be noted that, refer to Figure 2, in this embodiment, the lithium ore storage mechanism 2 further includes a storage bracket 3. The storage bracket 3 is installed in the preheating cylinder 1. The first storage component 4 is arranged at the top of the storage bracket 3. The second storage component 5 is arranged on the storage bracket 3. The second storage component 5 is located below the first storage component 4. The third storage component 6 is arranged on the storage bracket 3. The third storage component 6 is located below the second storage component 5.

[0057] Specifically, referring to Figure 3 , the first storage component 4 further includes a first holding tray 40. The first holding tray 40 is used to receive the lithium ore conveyed into the preheating cylinder 1. A number of first sieve holes 4001 are arranged on the first holding tray 40. The first sieve holes 4001 are used for the medium and small-sized parts of the lithium ore to pass through. The first vibration screening assembly 42 is connected to the first holding tray 40. The first vibration screening assembly 42 is used to drive the first holding tray 40 and the lithium ore to vibrate, so as to screen out the medium and small-sized parts of the 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 translate when it moves to the highest position, so that the lithium ore is thrown upward and is subjected to a translational driving force during the upward throwing process to turn over, so as to facilitate the absorption of waste heat.

[0058] Further, referring to Figures 6 to 8 , the tumbling assembly 41 includes a box-shaped tumbling base 4101. The tumbling base 4101 is located directly below the first holding tray 40. Translation plates 4102 are arranged above the two longitudinal sides of the tumbling base 4101. A translation chute 4103 is arranged on the side surface of the translation plate 4102. A translation slide 4104 is slidably arranged in the translation chute 4103. The first vibration screening assembly 42 is installed between the two translation slides 4104;

[0059] Tumbling brackets 4105 are arranged at the four corners of the tumbling base 4101. A first tumbling rotating shaft 4106 is arranged on the tumbling bracket 4105. The first tumbling rotating shaft 4106 is horizontally arranged. One end of the first tumbling rotating shaft 4106 is connected to a first tumbling motor 4107, and the other end of the first tumbling rotating shaft 4106 is connected to a first tumbling elliptical disc 4108.

[0060] Among them, 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 support 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 fixed 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 fixed ring seat 4111 and the translation plate 4102. Under the pulling force 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] Further, referring to Figures 6 to 8 , a longitudinal support frame 4113 is arranged at the edge part of one end of the translation plate 4102. A second rolling rotating shaft 4114 is arranged on the longitudinal support frame 4113. The second rolling rotating shaft 4114 is horizontally arranged. One end of the second rolling rotating shaft 4114 is connected to a second rolling motor 4115, and the other end of the second rolling rotating shaft 4114 is connected to a second rolling elliptical disk 4116. A driving block 4117 is arranged at the end of the translation sliding seat 4104. A second rolling telescopic cylinder 4118 is arranged between the driving block 4117 and the second rolling elliptical disk 4116. The second rolling telescopic cylinder 4118 is horizontally and longitudinally arranged and is connected to the longitudinal support frame 4113.

[0062] Among them, a second rolling telescopic rod 4119 is movably arranged 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 driving block 4117, and the other end abuts against the second rolling elliptical disk 4116. A second rolling fixed ring seat 4120 is arranged in the middle of the outer wall of the second rolling telescopic cylinder 4118. A second rolling tension spring 4121 is arranged between the second rolling fixed ring seat 4120 and the first storage tray 40. Under the pulling force 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.

[0063] When the rolling assembly 41 in this embodiment works, first, the first rolling motor 4107 drives the first rolling rotating shaft 4106 and the first rolling elliptical disk 4108 to rotate, thereby causing the first rolling telescopic rod 4110 to move up and down. The up and down movement of the first rolling telescopic rod 4110 drives the translation plate 4102 to move up and down, thereby causing the translation sliding seat 4104, the first vibration screening assembly 42, the first storage tray 40, and the lithium ore to move up and down, so that the lithium ore is continuously thrown up and falls down.

[0064] During the process of throwing the lithium ore upwards, the second rolling motor 4115 drives the second rolling rotating shaft 4114 and the second rolling elliptical disc 4116 to rotate, thereby causing the second rolling telescopic rod 4119 to longitudinally expand and contract. The second rolling telescopic rod 4119 drives the driving block 4117, the translation sliding seat 4104, the first vibration screening assembly 42, the first holding tray 40, and translation. That is, during the process of throwing the lithium ore upwards, a driving force in the horizontal direction is applied to it, so as to turn the lithium ore over, change the contact position between the lithium ore and the first holding tray 40, make it absorb heat evenly, and improve the preheating efficiency.

[0065] It should be noted that when the rolling assembly 41 of this embodiment works, the lithium ore remaining in the first holding tray 40 has a large size and a large mass, and the height it is thrown upwards is not large. Therefore, it is difficult to turn over when it falls. However, the above-mentioned rolling assembly 41 can not only drive the lithium ore to be thrown upwards, but also apply a driving force in the horizontal direction to the lithium ore during the process of throwing it upwards, so as to achieve turning over.

[0066] Further, referring to Figure 4 and Figure 5 , the first vibration screening assembly 42 includes a square-shaped first vibration base 4201. First vibration brackets 4202 are provided at the four corners of the first vibration base 4201. A first vibration rotating shaft 4203 is provided on the first vibration bracket 4202. The first vibration rotating shaft 4203 is horizontally arranged. One end of the first vibration rotating shaft 4203 is connected to a first vibration motor 4204, and the other end of the first vibration rotating shaft 4203 is connected to a first vibration elliptical disc 4205.

[0067] Among them, a first vibration telescopic cylinder 4206 is vertically arranged above the first vibration elliptical disc 4205. The first vibration telescopic cylinder 4206 is connected to the first vibration bracket 4202. A first vibration telescopic rod 4207 is movably arranged in the first vibration telescopic cylinder 4206. The upper end of the first vibration telescopic rod 4207 extends out of the first vibration telescopic cylinder 4206 and is connected to the corner of the first holding tray 40. A first vibration fixed ring seat 4208 is arranged in the middle of the outer wall of the first vibration telescopic cylinder 4206. A first vibration tension spring 4209 is arranged between the first vibration fixed ring seat 4208 and the first holding tray 40. Under the pulling force of the first vibration tension spring 4209, the lower end of the first vibration telescopic rod 4207 extends out of the first vibration telescopic cylinder 4206 and abuts against the first vibration elliptical disc 4205.

[0068] In the first vibrating screening assembly 42 of the present embodiment, the first vibrating motor 4204 drives the first vibrating shaft 4203 and the first vibrating elliptical disk 4205 to rotate, thereby causing the first vibrating telescopic rod 4207 to rise and fall. The lifting of the first vibrating telescopic rod 4207 drives the first containing plate 40 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 continue to change during continuous vibration, that is, the lithium ore will move during the vibration process. When the small and medium-sized parts of the lithium ore move to the first sieve hole 4001, they will fall from the first sieve hole 4001 to the second storage component 5, and be received and processed by the second storage component 5.

[0069] Further, refer to Figure 9 The second storage component 5 of this embodiment further includes a second holding tray 50, on which a plurality of second sieve holes 5001 are provided, and the second holding tray 50 is used to receive the small and medium-sized lithium ores falling from the first storage component 4, and the second holding tray 50 is provided with a plurality of second sieve holes 5001, and the second sieve holes 5001 are used for the small-sized part of the lithium ores 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 in the lithium ore, and turn the lithium ore over during the vibration process.

[0071] Reference Figure 10 The second vibration screening component 51 of the present embodiment includes a second vibration base 5101 in the shape of a square frame, and second vibration brackets 5102 are arranged at the four corners of the second vibration base 5101. A second vibration shaft 5103 is arranged on the second vibration bracket 5102, and the second vibration shaft 5103 is arranged horizontally. One end of the second vibration shaft 5103 is connected to a second vibration motor 5104, and the other end of the second vibration shaft 5103 is connected to a second vibration elliptical disk 5105. A second vibration telescopic cylinder 5106 is vertically arranged above the second vibration elliptical disk 5105, and the second vibration telescopic cylinder 5106 is connected to the second vibration bracket 5102. A second vibration telescopic rod 5107 is movably arranged in the second vibration telescopic cylinder 5106, and the upper end of the second vibration telescopic rod 5107 extends from the second vibration telescopic cylinder 5106 and is connected to the corner of the second containing plate 50.

[0072] Among them, a second vibration fixed ring seat 5108 is arranged in the middle part of the outer wall of the second vibration telescopic cylinder 5106, and a second vibration stretching spring 5109 is arranged between the second vibration fixed ring seat 5108 and the second containing plate 50. Under the pulling force of the second vibration stretching 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 plate 5105.

[0073] In the second vibration screening assembly 51 of the present 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 lifting of the second vibration telescopic rod 5107 drives the second containing plate 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 continue to change during continuous vibration, that is, the lithium ore will move during the vibration process. When the small-sized part of the lithium ore moves to the second sieve hole 5001, it will fall from the second sieve hole 5001 to the third storage component 6, and will be received and processed by the third storage component 6.

[0074] Furthermore, the third storage component 6 of this embodiment includes a third receiving tray 60 , and the third receiving tray 60 is used to receive the small-sized lithium ore dropped from the second storage component 5 .

[0075] The device for recycling heat energy from lithium ore roasting of the present embodiment introduces waste heat from the lithium ore roasting process into the preheating cylinder 1 through a heat conducting sheet, so that the inner cavity temperature of the preheating cylinder 1 is increased, and then the lithium ore is sent to 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, and lithium ores of different sizes mixed first fall on the first storage component 4, and after vibrating and screening by the first vibrating screening component 42, the small and medium-sized parts of the lithium ore fall into the second storage component 5, and then after vibrating and screening by the second vibrating screening component 51, the small-sized parts 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 part 4 drives the lithium ore to be thrown upward, and applies a horizontal driving force to the lithium ore during the process of throwing the lithium ore upward, so that the lithium ore is turned over, and the contact position between the lithium ore and the first holding plate 40 is changed, so that the lithium ore absorbs heat evenly, thereby improving 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 manifested as continuous upward and downward throwing. Since the surface of the lithium ore is uneven and the mass of the medium-sized lithium ore is small, the upward throwing height is large. During the continuous upward throwing process of the lithium ore, the turning over can be realized, changing the contact position between the lithium ore and the first storage tray 40, enabling it to absorb heat evenly and improving the preheating efficiency.

[0078] The lithium ore in the third storage component 6 is of a small size and can absorb the remaining heat quickly without being turned over.

[0079] Therefore, the lithium ore storage mechanism 2 in this embodiment stores the lithium ore in layers according to the size of the lithium ore and makes targeted treatments for the lithium ore in each layer. For the large-sized lithium ore, the turning-over component 41 is used to turn over the lithium ore; for the medium-sized lithium ore, the second vibration screening component 51 is used to turn over the lithium ore; and for the small-sized lithium ore, no structure is set, so that the lithium ore of different sizes can absorb the remaining heat more evenly, improving the efficiency of absorbing the remaining heat, that is, improving the preheating efficiency.

[0080] Example 2, referring to Figures 1 to 10 , this application provides a method for recycling the heat energy in lithium ore roasting, including the following steps:

[0081] S1. The remaining heat during the lithium ore roasting process is introduced into the preheating cylinder 1 through the heat conducting sheet, so that the temperature of the inner cavity of the preheating cylinder 1 rises.

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

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

[0084] It should be noted that on the first storage tray 40 in the lithium ore storage mechanism 2, first, the first vibration screening component 42 drives the first storage tray 40 and the lithium ore to vibrate, so that the small and medium-sized parts in the lithium ore pass through the first sieve holes 4001, and the large-sized parts remain in the first storage tray 40.

[0085] Then the turning-over component 41 acts to drive the first vibration screening component 42 to move upward. When the first vibration screening component 42 moves to the highest position, it drives the first vibration screening component 42 to move horizontally, so that the lithium ore is thrown upward and receives a horizontal driving force during the upward throwing process, thereby realizing turning over to facilitate the lithium ore to absorb the remaining heat.

[0086] Small and medium-sized lithium ore falls onto the second holding tray 50. The second vibration 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 sieve holes 5001, and the medium-sized part remains in the second holding tray 50. The second vibration screening component 51 continues to drive the second holding tray 50 to vibrate, causing the lithium ore to be continuously tossed upward. Due to the uneven surface of the lithium ore and the relatively small mass of the medium-sized lithium ore, the upward tossing height is relatively large, and the lithium ore can be turned over during the continuous upward tossing process to facilitate the lithium ore to absorb the residual heat;

[0087] The small-sized lithium ore falls into the third holding tray 60. Due to the relatively small size of the small-sized lithium ore, it can absorb the residual heat relatively quickly without being turned over.

[0088] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

[0089] The above-mentioned are only the preferred specific implementation manners of the embodiments of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application, according to the technical solution and concept of this application, makes equivalent substitutions or changes, and should be covered by the protection scope of this application.

Claims

1. An apparatus for recycling the thermal energy of lithium ore roasting, comprising a preheating cylinder (1), wherein heat conducting fins are arranged on the inner wall of the preheating cylinder (1), and the heat conducting fins are used for receiving the waste heat during the lithium ore roasting process, characterized in that, A lithium ore storage mechanism (2) is arranged in the preheating cylinder (1), and the lithium ore storage mechanism (2) includes: A first storage component (4) for screening lithium ore and receiving the large-sized lithium ore after screening. The first storage component (4) includes a tumbling assembly (41) and a first vibration screening assembly (42). The tumbling assembly (41) operates to turn the large-sized lithium ore over for rapid preheating. A second storage component (5) for receiving the medium-sized lithium ore falling from the first storage component (4). The second storage component (5) includes a second vibration screening assembly (51). The second vibration screening assembly (51) operates to turn the medium-sized lithium ore over for rapid preheating. A third storage component (6) for receiving the small-sized lithium ore falling from the second storage component (5).

2. The device for recycling heat energy in lithium ore roasting according to claim 1, characterized in that, The first storage component (4) further includes a first storage tray (40). The first storage tray (40) is used for receiving the lithium ore conveyed into the preheating cylinder (1). A number of first sieve holes (4001) are provided on the first storage tray (40), and the first sieve holes (4001) are for the medium- and small-sized parts of the lithium ore to pass through. The first vibration screening assembly (42) is connected to the first storage tray (40), and the first vibration screening assembly (42) is used to drive the first storage tray (40) and the lithium ore to vibrate, screening out the medium- and small-sized parts of the lithium ore. The tumbling assembly (41) is connected to the first vibration screening assembly (42), and the tumbling assembly (41) is used to drive the first vibration screening assembly (42) to move upward and translate when it reaches the highest point during upward movement, so that the lithium ore is thrown upward and is subjected to a translational driving force during the upward throwing process to turn over, facilitating the absorption of waste heat.

3. The device for recycling heat energy in lithium ore roasting according to claim 2, characterized in that, The tumbling assembly (41) includes a box-shaped tumbling base (4101) located directly below the first storage tray (40). Translation plates (4102) are provided above the two longitudinal sides of the tumbling base (4101). Translation chutes (4103) are provided on the side surfaces of the translation plates (4102), and translation sliders (4104) are slidably arranged in the translation chutes (4103). The first vibration screening assembly (42) is installed between the two translation sliders (4104). Tumbling brackets (4105) are provided at the four corners of the tumbling base (4101). A first tumbling rotating shaft (4106) is provided on the tumbling brackets (4105). The first tumbling rotating shaft (4106) is horizontally arranged transversely. One end of the first tumbling rotating shaft (4106) is connected to a first tumbling motor (4107), and the other end of the first tumbling rotating shaft (4106) is connected to a first tumbling elliptical disc (4108).

4. The device for recycling heat energy in lithium ore roasting according to claim 3, characterized in that, Above the first tumbling elliptical disc (4108), a first tumbling telescopic cylinder (4109) is vertically arranged. The outer wall of the first tumbling telescopic cylinder (4109) is connected to the tumbling support (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). In the middle of the outer wall of the first tumbling telescopic cylinder (4109), a first tumbling fixed ring seat (4111) is arranged. Between the first tumbling fixed ring seat (4111) and the translation plate (4102), a first tumbling tension spring (4112) is arranged. Under the pulling force of the first tumbling tension spring (4112), the lower end of the first tumbling telescopic rod (4110) extends out of the first tumbling telescopic cylinder (4109) and abuts against the first tumbling elliptical disc (4108).

5. The device for recycling the thermal energy of lithium ore roasting according to claim 4, characterized in that, At the edge part of one end of the translation plate (4102), a longitudinal support frame (4113) is arranged. On the longitudinal support frame (4113), a second tumbling rotating shaft (4114) is arranged. The second tumbling rotating shaft (4114) is horizontally and transversely arranged. One end of the second tumbling rotating shaft (4114) is connected to a second tumbling motor (4115), and the other end of the second tumbling rotating shaft (4114) is connected to a second tumbling elliptical disc (4116). At the end of the translation sliding seat (4104), a driving block (4117) is arranged. Between the driving block (4117) and the second tumbling elliptical disc (4116), a second tumbling telescopic cylinder (4118) is arranged. The second tumbling telescopic cylinder (4118) is horizontally and longitudinally arranged and is connected to the longitudinal support frame (4113).

6. The device for recycling the thermal energy of lithium ore roasting according to claim 5, characterized in that In the second tumbling telescopic cylinder (4118), a second tumbling telescopic rod (4119) is movably arranged. 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 driving block (4117), and the other end abuts against the second tumbling elliptical disc (4116). In the middle of the outer wall of the second tumbling telescopic cylinder (4118), a second tumbling fixed ring seat (4120) is arranged. Between the second tumbling fixed ring seat (4120) and the first storage tray (40), a second tumbling tension spring (4121) is arranged. Under the pulling force 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 disc (4116).

7. The device for recycling heat energy in lithium ore roasting according to claim 1, characterized in that, The second storage component (5) further includes a second storage tray (50). A plurality of second sieve holes (5001) are arranged on the second storage tray (50). The third storage component (6) includes a third storage tray (60). The third storage tray (60) is used for receiving small-sized lithium ore that falls from the second storage component (5).

8. A method for recycling the heat energy in the roasting of lithium ore, characterized in that, It includes the following steps: S1. Conduct the waste heat in the lithium ore roasting process into the preheating cylinder (1) through a heat conducting sheet to increase the temperature of the inner cavity of the preheating cylinder (1); S2. Feed the lithium ore into the lithium ore storage mechanism (2) in the preheating cylinder (1) for preheating treatment; S2. After reaching the predetermined time, take out the lithium ore in the lithium ore storage mechanism (2) and feed it into the lithium ore roasting furnace to realize the preheating treatment of lithium ore roasting.

9. A method for recycling the heat energy of lithium ore roasting according to claim 8, characterized in that, On the first storage tray (40) in the lithium ore storage mechanism (2), first, the first vibration screening assembly (42) drives the first storage tray (40) and the lithium ore to vibrate, so that the small and medium-sized parts in the lithium ore pass through the first sieve holes (4001), and the large-sized parts remain in the first storage tray (40); Then, the tumbling assembly (41) operates to drive the first vibration screening assembly (42) to move upward. When the first vibration screening assembly (42) moves to the highest position, it drives the first vibration screening assembly (42) to translate, so that the lithium ore is thrown upward and is subjected to a translation driving force during the upward throwing process, thereby realizing turning over to facilitate the lithium ore to absorb waste heat; The small and medium-sized lithium ore falls on the second storage tray (50). The second vibration screening assembly (51) drives the second storage tray (50) and the lithium ore to vibrate. The small-sized parts in the lithium ore pass through the second sieve holes (5001), and the medium-sized parts remain in the second storage tray (50). The second vibration screening assembly (51) continues to drive the second storage tray (50) to vibrate, so that the lithium ore is continuously thrown upward. Due to the uneven surface of the lithium ore and the relatively small mass of the medium-sized lithium ore, the upward throwing height is relatively large, and turning over can be realized during the continuous upward throwing process of the lithium ore to facilitate the lithium ore to absorb waste heat; The small-sized lithium ore falls into the third storage tray (60). Since the size of the small-sized lithium ore is small, it can absorb waste heat quickly without turning over.

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