Equipment for improving primary crushing efficiency of lithium battery positive electrode material after sintering
The crushing equipment, consisting of a tilting hopper, a roller mill, and a vibrating screen, uses a robotic arm to tilt and shake the sagger, solving the problem of material adhesion after sintering of lithium battery cathode materials and achieving efficient crushing and automated production.
Patent Information
- Application Number
- CN202422662910.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-01
AI Technical Summary
After sintering, lithium battery cathode materials tend to stick to the bottom of the crucible, resulting in low crushing efficiency and affecting output.
The crushing equipment consists of a tilting hopper, a double roller mill, and a vibrating screen. The robotic arm tilts and shakes the hopper to pour the material into the tilting hopper, where it is crushed and screened by the double roller mill and vibrating screen, thus avoiding material sticking and improving crushing efficiency.
It achieves efficient crushing of lithium battery cathode materials, avoids material adhesion, improves crushing efficiency and automation, and enhances the safety and stability of the equipment.
Smart Images
Figure CN223556082U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of crushing equipment, in particular to an equipment for improving the one-time crushing efficiency of lithium battery positive electrode materials after sintering. BACKGROUND
[0002] The main constituent materials of lithium ion batteries include electrolyte, separator material, positive and negative electrode materials, etc., and the positive electrode material accounts for a large proportion, so the performance of the positive electrode material directly affects the performance of the lithium ion battery. In the production process of lithium battery positive electrode materials, the lithium battery positive electrode materials need to be crushed after sintering.
[0003] In the prior art, the discharge of lithium battery positive electrode materials after sintering is often crushed by using an elevator combined with a jaw crusher. However, since the lithium battery positive electrode materials are often adhered to the bottom of the sagger after sintering, the materials in the sagger cannot be completely poured into the jaw crusher for crushing, resulting in waste of part of the materials, low crushing efficiency of the lithium battery positive electrode materials, and serious negative impact on the production of lithium battery positive electrode materials. CONTENT OF THE INVENTION
[0004] The present disclosure aims to overcome the shortcomings of the prior art, provide an equipment for improving the one-time crushing efficiency of lithium battery positive electrode materials after sintering, and avoid material adhesion to the bottom of the sagger, orderly material conveying, and improved material crushing efficiency.
[0005] To achieve the above-mentioned purposes of the utility model, the present disclosure adopts the following technical solutions:
[0006] An equipment for improving the one-time crushing efficiency of lithium battery positive electrode materials after sintering, comprising a turnover bin, a pair of rollers, and a vibrating screen;
[0007] The discharge port of the turnover bin is in communication with the feeding port of the pair of rollers, the discharge port of the pair of rollers is in communication with the feeding port of the vibrating screen, the vibrating screen is provided with a lower material outlet for discharging fine materials and an upper material outlet for discharging coarse materials;
[0008] One side of the pair of rollers is provided with a mechanical hand, which is used to grab the sagger, and turn over and shake the sagger to pour the materials in the sagger into the turnover bin.
[0009] In an exemplary embodiment of the present disclosure, the top end of the turnover bin is provided with a dust collection return device, and the dust collection return device is provided with a butterfly valve and a differential pressure table.
[0010] In an exemplary embodiment of the present disclosure, a feeding port is provided on the side wall of the turnover bin close to the mechanical hand, and the feeding port is provided with an electric door;
[0011] The turnover bin is configured as a closed bin, and the turnover bin is made of anti-static polypropylene.
[0012] In an example embodiment of the present disclosure, the pair of rollers is a double-layer pair of rollers, and the pair of rollers includes an upper toothed roller and a lower smooth roller.
[0013] The upper toothed roller is configured to perform primary crushing on the material, and the lower smooth roller is configured to perform secondary crushing on the material after the primary crushing.
[0014] In an example embodiment of the present disclosure, the mechanical arm is a six-axis mechanical arm, and the movement radius of the mechanical arm is greater than 3500 mm.
[0015] In an example embodiment of the present disclosure, a control system is further included, and the control system is electrically connected to the turnover bin, the pair of rollers, the vibrating screen, and the mechanical arm, respectively.
[0016] The control system is configured to control the turnover bin to receive the material in the sagger and to deliver the material to the pair of rollers.
[0017] The control system is configured to control the pair of rollers to crush the material.
[0018] The control system is configured to control the vibrating screen to screen the crushed material.
[0019] The control system is configured to control the mechanical arm to grab or release the sagger and to control the mechanical arm to perform turnover and shaking actions.
[0020] In an example embodiment of the present disclosure, a first frame and a second frame are further included, the turnover bin, the pair of rollers, and the vibrating screen are arranged on the first frame, and the mechanical arm is arranged at the top end of the second frame.
[0021] The distance between the feeding port of the pair of rollers and the ground is greater than 5 meters, and the distance between the discharging port of the vibrating screen and the ground is greater than 2.2 meters.
[0022] In an example embodiment of the present disclosure, a staircase is arranged on one side of the first frame.
[0023] In an example embodiment of the present disclosure, a conveying line is arranged on one side of the second frame, a material dumping station is arranged on the conveying line, and the conveying line is configured to convey the sagger to the material dumping station in a horizontal direction.
[0024] The mechanical arm is configured to grab the sagger on the material dumping station.
[0025] In an example embodiment of the present disclosure, the pouring station is provided with a saggar lifting station for moving the saggar in a vertical direction;
[0026] Two saggar weighing stations are respectively arranged on both sides of the saggar lifting station, and the two saggar weighing stations are respectively used for weighing the saggar before and after pouring.
[0027] The saggar lifting station and the saggar weighing station are both provided with a blocking mechanism.
[0028] The present disclosure has the following beneficial effects:
[0029] The present application provides a kind of equipment for improving the efficiency of one-time crushing of lithium battery positive electrode material after sintering, which uses mechanical hand instead of elevator, and uses roller mill instead of jaw crusher.The material saggar is lifted to the turnover bin by mechanical hand clamping, and the material is poured down by turning over.The material in the saggar is shaken out by the shaking of mechanical hand, avoiding the adhesion of material to the bottom of the saggar, and the material is transported in order, with high degree of automation, improving the crushing efficiency of the material. BRIEF DESCRIPTION OF DRAWINGS
[0030] The drawings incorporated into the specification and forming a part thereof show, in accordance with the embodiments of the present disclosure, and together with the specification, serve to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.
[0031] Figure 1 In an embodiment of the present disclosure, the structure diagram of the equipment for improving the efficiency of one-time crushing of lithium battery positive electrode material after sintering.
[0032] Explanation of reference signs:
[0033] 1, turnover bin; 101, dust collection return device; 2, roller mill; 201, upper layer tooth roller; 202, lower layer smooth roller; 3, vibrating screen; 4, mechanical hand; 5, first frame body; 6, second frame body; 7, staircase. DETAILED DESCRIPTION
[0034] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in various forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided as example embodiments so that the present disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.
[0035] Although relative terms are used in this specification, such as "upper", "lower", to describe one component's relationship to another component of the icon, these terms are used herein solely for convenience, e.g., with respect to the example shown in the drawings. It will be understood that if the icon's device is turned over so that what is on "top" becomes on the "bottom", then the component described as being "on top" will become the component "on the bottom". When a structure is "on" another structure, it can mean that the structure is formed integrally with the other structure, or that the structure is "directly" on the other structure, or that the structure is "indirectly" on the other structure via another structure.
[0036] The terms "one", "a", "an", "the", and "at least one" are used to indicate that "one or more" of the identified element / s, component / s, etc. is / are present; the terms "includes", "including", and "has" are used inclusively to mean that something can be present or not present, and that additional items / s, component / s, etc. can be present in addition to what is listed; the terms "first", "second", and "third", etc. are used merely as labels, not as quantities.
[0037] The embodiment of the present disclosure provides an equipment for improving the one-time crushing efficiency of lithium battery positive electrode material after sintering, which comprises a turnover bin 1, a pair of rollers 2 and a vibrating screen 3. Figure 1 The outlet of the turnover bin 1 is communicated with the inlet of the pair of rollers 2, the outlet of the pair of rollers 2 is communicated with the inlet of the vibrating screen 3, the vibrating screen 3 is provided with a lower material outlet for discharging fine materials and an upper material outlet for discharging coarse materials; a mechanical arm 4 is arranged on one side of the pair of rollers 2, and the mechanical arm 4 is used for grabbing the saggar, turning over and shaking the saggar, so that the materials in the saggar are poured into the turnover bin 1.
[0038] In the embodiment of the present disclosure, the equipment is composed of the turnover bin 1, the pair of rollers 2, the vibrating screen 3 and the mechanical arm 4 arranged on one side of the pair of rollers 2 arranged from bottom to top in sequence, the outlet of the turnover bin 1 is communicated with the inlet of the pair of rollers 2, the outlet of the pair of rollers 2 is communicated with the inlet of the vibrating screen 3, the mechanical arm 4 sends the saggar containing lithium battery positive electrode material into the turnover bin 1 after grabbing the saggar, then turns over and shakes the saggar, so that all the materials in the saggar are poured into the turnover bin 1, avoiding that the residual materials are adhered to the bottom of the saggar, the turnover bin 1 sends the materials poured out by the saggar into the pair of rollers 2, the pair of rollers 2 crushes the entering materials, the crushed materials enter the vibrating screen 3, the vibrating screen 3 screens the crushed materials, the material particles smaller than the mesh aperture are discharged from the lower material outlet, and the material particles larger than the mesh aperture are discharged from the upper material outlet.
[0039] Compared with the existing lifting machine combined with the jaw crusher to form a crushing device, the equipment for once crushing of sintered lithium battery positive electrode material adopts a mechanical hand instead of a lifting machine and a roller crusher instead of a jaw crusher, the mechanical hand clamps a material box kiln and lifts it to a turnover bin to turn over and pour down the material, and the mechanical hand shakes to shake out all the material in the box kiln, so as to avoid material adhesion to the bottom of the box kiln, orderly material conveying, high automation, and improved crushing efficiency of the material.
[0040] In an embodiment of the present disclosure, the moving speed of the mechanical hand 4 is adjustable, and the operation cycle of the mechanical hand 4 is matched with the process cycle of sintering of lithium battery positive electrode material.
[0041] It can be understood that the process cycle of sintering of lithium battery positive electrode material can be adjusted according to the material properties, when the process cycle of sintering of lithium battery positive electrode material is shortened, the crushing cycle requirement of the material in a single box kiln is also shortened accordingly, by adjusting the moving speed of the mechanical hand 4, the speed of supplying the material in the box kiln into the turnover bin 1 is adjusted, the supply of the feeding box kiln is met, and the change of the sintering cycle is flexibly matched.
[0042] In an embodiment of the present disclosure, the number of times of turning over of the mechanical hand 4 can be preset.
[0043] In an embodiment of the present disclosure, referring to Figure 1 , a dust collection and return device 101 is arranged at the top end of the turnover bin 1. In this way, the dust generated during the material pouring process of the mechanical hand 4 can be collected, and dust overflow during the material pouring process can be prevented.
[0044] Optionally, a butterfly valve and a differential pressure table are arranged on the dust collection and return device 101. In this way, workers can conveniently confirm whether the filter cartridge of the dust collection and return device 101 is blocked, and the use of the turnover bin 1 is facilitated.
[0045] In an embodiment of the present disclosure, the turnover bin 1 is configured as a closed bin, a feeding port is arranged on a side wall of the turnover bin 1 close to the mechanical hand 4, and an electric door is arranged in the feeding port. In this way, after the mechanical hand 4 grabs and sends the box kiln into the turnover bin 1, the electric door closes the feeding port, and through the cooperation of the electric door and the closed bin, dust overflow during the material pouring process of the mechanical hand 4 is prevented.
[0046] Optionally, the electric door can be any one of a horizontally sliding door, a folding horizontally sliding door, a suspended folding horizontally sliding door, a double door, and a pair of doors.
[0047] Of course, the electric door can also be in other forms.
[0048] Optionally, the turnover bin 1 is made of anti-static polypropylene. In this way, dust explosion during the material pouring of the mechanical hand 4 in the turnover bin 1 can be avoided, and the safety of the equipment use is improved.
[0049] In an embodiment of the present disclosure, referring to Figure 1 The roller mill 2 is a double-layer roller mill, and the roller mill 2 comprises an upper layer tooth roller 201 and a lower layer smooth roller 202. The upper layer tooth roller 201 is used for primary crushing of the material, and the lower layer smooth roller 202 is used for secondary crushing of the material after primary crushing. In this way, the lithium battery positive electrode material can be crushed twice, and the crushing efficiency and crushing effect of the lithium battery positive electrode material are improved.
[0050] In an embodiment of the present disclosure, the mechanical arm 4 is a six-axis mechanical arm, and the movement radius of the mechanical arm 4 is greater than 3500 mm. In this way, the use range of the mechanical arm 4 is improved, the operation cycle of the mechanical arm 4 is conveniently adjusted, the mechanical arm 4 can conveniently lift different saggers into the turnover bin 1, and the operation of the mechanical arm 4 is stable and smooth.
[0051] Optionally, the mechanical arm 4 can shake around the six axes and can shake in the vertical direction.
[0052] In an embodiment of the present disclosure, the device further comprises a control system, which is electrically connected with the turnover bin 1, the roller mill 2, the vibrating screen 3, and the mechanical arm 4, respectively. The control system is used for controlling the turnover bin 1 to receive the material in the sagger and to deliver the material into the roller mill 2, for controlling the roller mill 2 to crush the material, for controlling the vibrating screen 3 to screen the crushed material, and for controlling the mechanical arm 4 to grab or release the sagger and to control the turning and shaking actions of the mechanical arm 4. In this way, the intelligent control of the turnover bin 1, the roller mill 2, the vibrating screen 3, and the mechanical arm 4 is realized, the use of the entire device is facilitated, and the crushing efficiency of the material is improved.
[0053] In an embodiment of the present disclosure, referring to Figure 1 The device further comprises a first frame body 5 and a second frame body 6. The turnover bin 1, the roller mill 2, and the vibrating screen 3 are arranged on the first frame body 5, and the mechanical arm 4 is arranged at the top end of the second frame body 6. In this way, the turnover bin 1, the roller mill 2, the vibrating screen 3, and the mechanical arm 4 are arranged on the first frame body 5 and the second frame body 6, respectively, the stability of the turnover bin 1, the roller mill 2, the vibrating screen 3, and the mechanical arm 4 is improved, and the mechanical arm 4 can conveniently grab and accurately lift the sagger into the turnover bin 1.
[0054] Optionally, the distance between the feeding port of the roller mill 2 and the ground is greater than 5 meters. In this way, the crushing path of the material by the roller mill 2 is increased, and the crushing effect of the material is improved.
[0055] Optionally, the distance between the discharging port of the vibrating screen 3 and the ground is greater than 2.2 meters. In this way, the fine material and the coarse material of the vibrating screen 3 can be conveniently discharged.
[0056] In an embodiment of the present disclosure, a pouring area is arranged between the first frame 5 and the second frame 6, and blocking devices are arranged on the front and back sides of the pouring area, that is, the pouring area is surrounded by the first frame 5, the second frame 6 and the two blocking devices. In this way, the track between the first frame 5 and the second frame 6 can be prevented from being accessed by external air, and the material in the saggar can be prevented from spilling.
[0057] In an embodiment of the present disclosure, referring to Figure 1 , a staircase 7 is arranged on one side of the first frame 5. In this way, personnel can climb onto the first frame 5, and the turnover bin 1, the roller mill 2 and the vibrating screen 3 mounted on the first frame 5 can be conveniently maintained, and the normal operation of the equipment can be facilitated.
[0058] In an embodiment of the present disclosure, a conveying line is arranged on one side of the second frame 6, and a pouring station is arranged on the conveying line. The conveying line is used to convey the saggar in the horizontal direction to the pouring station, and the mechanical arm 4 is used to grab the saggar on the pouring station. In this way, the saggar containing material can be continuously supplied to the mechanical arm 4, the lithium battery positive electrode material can be continuously crushed, and the crushing efficiency of the equipment can be improved.
[0059] In an embodiment of the present disclosure, a saggar lifting station is arranged on the pouring station, and the saggar lifting station is used to move the saggar in the vertical direction. In this way, the saggar lifting station and the mechanical arm 4 are used in cooperation to supply the saggar on the conveying line to the mechanical arm 4, and the mechanical arm 4 can conveniently grab and place the saggar.
[0060] Optionally, the number of saggar lifting stations is 2, wherein the station close to the input direction of the saggar on the conveying line is used to supply the saggar containing material to the mechanical arm 4, and the station close to the output direction of the saggar on the conveying line is used to receive the empty saggar placed by the mechanical arm 4.
[0061] Optionally, the saggar lifting station comprises a vertically arranged air cylinder, and the piston rod of the air cylinder moves longitudinally to vertically move the saggar.
[0062] Optionally, saggar weighing stations are arranged on the two sides of the saggar lifting station, respectively, and the two saggar weighing stations are used to weigh the saggar before and after pouring, respectively. In this way, the amount of the saggar poured into the turnover bin 1 can be detected, the amount of the crushed material in the entire crushing production process can be detected, the problem of material adhesion in the saggar can be judged, and the movement state of the mechanical arm 4 can be adjusted in a timely manner.
[0063] Optionally, the saggar weighing station comprises a vertically arranged air cylinder and a weighing sensor arranged at the end of the piston rod of the air cylinder. The air cylinder lifts the saggar in the saggar weighing station, and the saggar is weighed by the weighing sensor.
[0064] Optionally, the saggar lifting station and the saggar weighing station are each provided with a blocking mechanism. In this way, the movement range of the cylinder of the saggar lifting station and the saggar weighing station can be limited, so as to avoid collision between the cylinder and the manipulator 4, and improve the safety of the equipment in use.
[0065] In one embodiment of the present disclosure, referring to Figure 1 , the working process of the equipment for improving the primary crushing efficiency of the sintered lithium battery positive electrode material is briefly described as follows:
[0066] In use of the present disclosure, first, the saggar loaded with material is conveyed through the conveying line. When the saggar moves to the first saggar weighing station, the first saggar weighing station weighs the saggar loaded with material. After the weighing is completed, the conveying line conveys the saggar to the first saggar lifting station. The saggar lifting station lifts the saggar with material to the manipulator 4 for grabbing. The manipulator 4 carries the saggar into the turnover bin 1 to pour the material into the turnover bin 1. The turnover bin 1 sends the material poured out by the saggar into the roll crusher 2. The roll crusher 2 crushes the entering material. The crushed material enters the vibrating screen 3 for screening. After the pouring is completed, the manipulator 4 moves out of the turnover bin 1 and carries the empty saggar to descend along the set path. The empty saggar is placed on the second saggar lifting station. The manipulator 4 returns to the original grabbing position. The second saggar lifting station moves the empty saggar to the conveying line. The conveying line moves the empty saggar to the second saggar weighing station. The second saggar weighing station weighs the empty saggar. After the weighing is completed, the conveying line flows the empty saggar to the next process. This is a cycle. For the problem of material sticking to the saggar, the shaking action of the manipulator 4 can be set in advance to shake off the material sticking to the bottom of the saggar. If the sintering furnace body cycle is shortened, the moving speed of the manipulator 4 can be adjusted accordingly, and the conveying speed of the conveying line and each station thereon is adjusted to match the moving speed of the manipulator 4 to meet the supply of the feeding saggar.
[0067] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present disclosure that follow, in general, the principles of the present disclosure and include known equivalents or modifications of the present disclosure that are not disclosed. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the present disclosure are indicated by the appended claims.
Claims
1. Equipment for improving the efficiency of primary crushing of lithium battery cathode materials after sintering, characterized in that, It includes a tilting hopper (1), a roller mill (2), and a vibrating screen (3); The discharge port of the tilting hopper (1) is connected to the feed port of the roller mill (2), the discharge port of the roller mill (2) is connected to the feed port of the vibrating screen (3), and the vibrating screen (3) is provided with a lower material outlet for discharging fine materials and an upper material outlet for discharging coarse materials. A robotic arm (4) is provided on one side of the roller mill (2). The robotic arm (4) is used to grab the sagger and flip and shake the sagger to pour the material in the sagger into the flipping hopper (1).
2. The equipment for improving the primary crushing efficiency of lithium battery cathode materials after sintering, as described in claim 1, is characterized in that, The top of the tilting hopper (1) is equipped with a dust collection return device (101), and the dust collection return device (101) is equipped with a butterfly valve and a differential pressure gauge.
3. The equipment for improving the primary crushing efficiency of lithium battery cathode materials after sintering, as described in claim 1, is characterized in that... The tilting hopper (1) has a feed inlet on one side wall near the robot (4), and an electric door is provided inside the feed inlet; The tilting hopper (1) is configured as a closed hopper and is made of antistatic polypropylene.
4. The equipment for improving the primary crushing efficiency of lithium battery cathode materials after sintering, as described in claim 1, is characterized in that, The roller mill (2) is a double-layer roller mill, which includes an upper toothed roller (201) and a lower smooth roller (202); The upper toothed roller (201) is used to crush the material in one stage, and the lower smooth roller (202) is used to crush the material after the first stage.
5. The equipment for improving the primary crushing efficiency of lithium battery cathode materials after sintering, as described in claim 1, is characterized in that, The robotic arm (4) is a six-axis robotic arm with a motion radius of 3500 mm or more.
6. The equipment for improving the primary crushing efficiency of lithium battery cathode materials after sintering, as described in claim 1, is characterized in that, It also includes a control system, which is electrically connected to the tilting hopper (1), the roller mill (2), the vibrating screen (3), and the robot (4); The control system is used to control the tilting hopper (1) to receive the material in the sagger and to transport the material to the roller mill (2); Used to control the roller mill (2) to crush the material; Used to control the vibrating screen (3) to screen the crushed material; Used to control the robotic arm (4) to grasp or release the saucer and to control the robotic arm (4) to flip and shake.
7. The equipment for improving the primary crushing efficiency of lithium battery cathode materials after sintering, as described in claim 1, is characterized in that, It also includes a first frame (5) and a second frame (6), wherein the tilting hopper (1), the roller mill (2) and the vibrating screen (3) are mounted on the first frame (5), and the robotic arm (4) is mounted on the top of the second frame (6); The distance between the feed inlet of the roller mill (2) and the ground is greater than 5 meters, and the distance between the discharge outlet of the vibrating screen (3) and the ground is greater than 2.2 meters.
8. The equipment for improving the primary crushing efficiency of lithium battery cathode materials after sintering, as described in claim 7, is characterized in that... A staircase (7) is provided on one side frame of the first frame (5).
9. The equipment for improving the primary crushing efficiency of lithium battery cathode materials after sintering, as described in claim 7, is characterized in that, A conveyor line is provided on one side of the second frame (6), and a material unloading station is provided on the conveyor line. The conveyor line is used to transport the sagger to the material unloading station in a horizontal direction. The robotic arm (4) is used to grab the sagger on the unloading station.
10. The equipment for improving the primary crushing efficiency of lithium battery cathode materials after sintering according to claim 9, characterized in that, The material unloading station is equipped with a sagger lifting station, which is used to move the sagger in the vertical direction; The two sagger lifting stations are respectively set on both sides of the sagger weighing station. The two sagger weighing stations are used to weigh the sagger before and after unloading. Both the sagger lifting station and the sagger weighing station are equipped with blocking mechanisms.