Heat treatment equipment for lithium iron manganese phosphate electrode material

Abstract

The invention relates to the technical field of heat treatment equipment, in particular to heat treatment equipment for a lithium iron manganese phosphate electrode material. According to the heat treatment equipment for the lithium iron manganese phosphate electrode material, the box body can be closed, then inert gas is introduced to conduct heat treatment on the material, waste of the inert gas is reduced, and meanwhile the heat treatment quality of the material is improved. The heat treatment equipment for the lithium manganese iron phosphate electrode material comprises a connecting bracket, a conveying belt and the like, and the conveying belt is arranged at the upper part of the connecting bracket. When a rotating column on the left side rotates and resets, a third connecting spring rebounds, a guide inclined frame resets, then a first reset spring rebounds, a first switch resets, a second connecting pipe is opened, a box body is filled with inert gas, the box body can be closed, and then the inert gas is introduced to conduct heat treatment on materials; waste of inert gas is reduced, and meanwhile the heat treatment quality of the material is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat treatment equipment, and in particular to heat treatment equipment for lithium manganese iron phosphate electrode materials. Background Art

[0002] As a new type of positive electrode material for lithium-ion batteries, lithium iron manganese phosphate has a high theoretical specific capacity, good cycle stability and safety. During the preparation process, the lithium iron manganese phosphate electrode material needs to be heat-treated. In the prior art, the lithium iron manganese phosphate electrode material is placed in a sample box, and then the sample box is sent to a heating chamber for heating through a conveyor belt to heat the lithium iron manganese phosphate electrode material. When the lithium iron manganese phosphate electrode material is heat-treated, in order to prevent the material from oxidizing, an inert gas needs to be introduced into the heating chamber. However, since there is a gap between the heating chamber and the conveyor belt, the inert gas will flow out from the gap after entering the heating chamber, resulting in waste, and external air can easily enter the heating chamber, resulting in affecting the quality of the material heat treatment.

[0003] Therefore, a heat treatment device for lithium iron manganese phosphate electrode material has been developed, which can seal the box body and then introduce inert gas to heat treat the material, thereby reducing the waste of inert gas and improving the heat treatment quality of the material. Summary of the invention

[0004] In order to overcome the shortcomings that a gap is left between the heating chamber and the conveyor belt, the inert gas will flow out from the gap after being passed into the heating chamber, resulting in waste, and the outside air can easily enter the heating chamber, resulting in affecting the quality of heat treatment of the material, the present invention provides a heat treatment equipment for lithium iron manganese phosphate electrode materials, which can seal the box body and then pass inert gas to heat treat the material, thereby reducing the waste of inert gas and improving the quality of heat treatment of the material.

[0005] The technical implementation scheme of the present invention is: a heat treatment equipment for lithium iron manganese phosphate electrode materials, including a connecting bracket, a conveyor belt, a first motor, a closing mechanism and an opening and closing mechanism, a conveyor belt is provided on the upper part of the connecting bracket, a first motor is connected to the front side of the left part of the connecting bracket, the output shaft of the first motor is connected to the conveyor belt, the first motor is used to drive the conveyor belt, a closing mechanism capable of closing the lithium iron manganese phosphate electrode material for heat treatment is provided on the connecting bracket, and an opening and closing mechanism capable of controlling the introduction of inert gas is provided on the closing mechanism.

[0006] More preferably, the closing mechanism includes a box body, a heating tube, a rotating column, a connecting plate, a torsion spring, a guide plate and a first connecting spring, the box body is connected to the upper left side of the connecting bracket, the heating tubes are connected to the inner sides of the front and rear parts of the box body, the left and right sides of the box body are rotatably connected to the rotating columns, the connecting plates are connected to the rotating columns, the front and rear parts of the rotating columns are connected to the box body with torsion springs, the lower part of the connecting plate is slidably connected to the guide plate, and the guide plates are connected to the connecting plates connected thereto with a plurality of first connecting springs, when the processing box moves to the right side of the box body, the connecting plate, the guide plate and the rotating column on the right side are pushed to rotate, and the torsion spring is deformed, so that The processing box moves to the inside of the box body. When the processing box is separated from the connecting plate and the guide plate, the torsion spring recovers, driving the connecting plate, the guide plate and the rotating column to reset. The guide plate is brought into contact with the conveyor belt through the force of the first connecting spring, so that the box body is closed. After the processing box is moved to the inside of the box body, the heating tube is heated to perform heat treatment on the lithium iron manganese phosphate electrode material. After the heat treatment is completed, the conveyor belt continues to transport the processing box, so that the processing box that has completed the heat treatment pushes the connecting plate, the guide plate and the rotating column on the left to rotate and open to separate from the box body. At the same time, the unprocessed processing box pushes the connecting plate, the guide plate and the rotating column on the right to rotate and open to enter the box body.

[0007] More preferably, a one-way valve is further included, and the front side of the right part of the box body is connected with the one-way valve.

[0008] More preferably, the opening and closing mechanism includes a second connecting tube, a nozzle, a guide inclined frame, a third connecting spring, a first switch and a first return spring. The second connecting tube is connected to the upper left side of the box body, the nozzle is connected to the inner side of the upper part of the box body, the nozzle is connected to the second connecting tube, the left side of the upper part of the box body is slidably connected to the guide inclined frame, the rotating column on the left side is pressed and matched with the guide inclined frame, the guide inclined frame is also slidably connected to the second connecting tube, the third connecting spring is connected between the guide inclined frame and the second connecting tube, the left side of the upper part of the second connecting tube is slidably connected to the first switch, the guide inclined frame is pressed and matched with the first switch, and the front and rear parts of the first switch are both connected to the second connecting tube. A first return spring is connected between the tubes. When the processing box that has completed the heat treatment pushes the connecting plate and the guide plate on the left to rotate, the rotating column on the left rotates and squeezes the guiding inclined frame to move upward, and the third connecting spring is squeezed and contracts, so that the guiding inclined frame squeezes the first switch to move to the right to close the second connecting tube, so that the inert gas stops filling into the box body. When the processing box that has completed the heat treatment is separated from the connecting plate and the guide plate on the left, the rotating column on the left rotates and resets, and then the third connecting spring rebounds, so that the guiding inclined frame is reset, and then the first return spring rebounds, so that the first switch is reset, and the second connecting tube is opened, so that the inert gas is filled into the box body.

[0009] More preferably, a plurality of nozzles are provided on the lower side of the nozzle pipe.

[0010] More preferably, it also includes a stirring mechanism, which includes a connecting and fixing support frame, a first cylinder, a connecting and fixing plate, a second motor, a stirring column, a first belt, a connecting guide frame, a second connecting spring, a first connecting pipe and a nozzle, the upper right side of the connecting bracket is connected to the connecting and fixing support frame, the upper part of the connecting and fixing support frame is connected to the first cylinder, the telescopic end of the first cylinder is connected to the connecting and fixing plate, the upper right side of the connecting and fixing plate is connected to the second motor, the lower sides of the left and right parts of the connecting and fixing plate are rotatably connected to the stirring columns, the output shaft of the second motor is connected to the stirring column on the right side, the first belt is wound around the stirring columns through a transmission wheel, the connecting guide frame is slidably connected to the connecting and fixing plate, and a plurality of first connecting pipes are connected between the connecting guide frame and the connecting and fixing plate. Two connecting springs, a first connecting tube is connected to the right side of the connecting and fixing support frame, and a plurality of nozzles are connected to the lower side of the first connecting tube. When the processing box moves to the bottom of the connecting and fixing support frame, the active agent is introduced into the first connecting tube, so that the nozzle sprays the active agent into the processing box. After the processing box moves to the bottom of the connecting guide frame, the first cylinder is started to push the connecting and fixing plate to move downward, so that the connecting guide frame contacts the processing box and presses it, and then the connecting and fixing plate continues to move downward, and the second connecting spring is squeezed and contracted until the stirring column is located inside the processing box, and then the second motor is started to drive the stirring column on the right to rotate, so that the first belt rotation drives the stirring column on the left to rotate, so that the stirring column stirs the lithium manganese iron phosphate electrode material in the processing box.

[0011] More preferably, an auxiliary mechanism is also included, which includes a third connecting tube, a second switch, a fixed connecting frame, a fourth connecting spring, a roller, a cam, a second belt and a second reset spring. The third connecting tube is connected to the rear side of the right part of the connecting fixed support frame, the third connecting tube is connected to the first connecting tube, the front side of the lower part of the third connecting tube is slidably connected to the second switch, the lower right part of the connecting fixed support frame is slidably connected to the fixed connecting frame, the fourth connecting spring is connected between the fixed connecting frame and the connecting fixed support frame, the front side of the fixed connecting frame is rotatably connected to the roller, the rear side of the fixed connecting frame is rotatably connected to the cam, and the cam is connected to the second The switch is squeezed and matched, and a second belt is wound around the cam and the roller through the transmission wheel. A second return spring is connected between the left and right parts of the second switch and the third connecting tube. The active agent is passed into the third connecting tube. When the processing box is placed on the right part of the conveyor belt, the processing box contacts the roller and squeezes the fixed connecting frame to move backward. The fourth connecting spring is squeezed and contracted, so that the cam contacts the second switch. When the processing box moves, it drives the roller to rotate, so that the second belt rotates and drives the cam to rotate. When the cam rotates, it squeezes the second switch. Under the action of the second return spring, the second switch moves back and forth, so that the third connecting tube opens and closes intermittently.

[0012] More preferably, a joint is provided at the rear side of the lower portion of the third connecting pipe.

[0013] More preferably, a clamping mechanism is also included, which includes a fixed connecting support frame, a second cylinder and a pressure plate, the fixed connecting support frame is connected to the upper right side of the connecting bracket, the fixed connecting support frame is located on the left side of the connected fixed support frame, the upper part of the fixed connecting support frame is connected to the second cylinder, and the pressure plate is connected to the telescopic end of the second cylinder. When the processing box moves to the bottom of the fixed connecting support frame, the second cylinder is started to push the pressure plate downward and press it into the processing box.

[0014] More preferably, a detection mechanism is also included, the detection mechanism includes a laser particle size analyzer and an alarm, the laser particle size analyzer is fixedly connected to the left part of the support frame, the alarm is fixedly connected to the left part of the support frame, the alarm is located on the upper part of the laser particle size analyzer, the laser particle size analyzer is electrically connected to the alarm, when the processing box is moved to the laser particle size analyzer, the laser particle size analyzer measures the particle size distribution of the material, and when it is detected that the particle size distribution of the material is uneven, the alarm sounds an alarm.

[0015] Compared with the prior art, the present invention has the following advantages: 1. When the left rotating column of the present invention is rotated and reset, the third connecting spring rebounds, so that the guide inclined frame is reset, and then the first reset spring rebounds, so that the first switch is reset, and the second connecting pipe is opened, so that the inert gas is filled into the box body, so that the box body can be closed and then the inert gas is introduced to heat treat the material, thereby reducing the waste of inert gas and improving the quality of material heat treatment.

[0016] 2. The present invention passes the active agent into the first connecting pipe, so that the nozzle sprays the active agent into the processing box, and then starts the second motor to drive the stirring column on the right to rotate, so that the first belt rotates and drives the stirring column on the left to rotate, so that the stirring column stirs the lithium iron manganese phosphate electrode material in the processing box, thereby achieving the effect of being able to mix the active agent in the lithium iron manganese phosphate electrode material, disperse it, and prevent the material from agglomerating.

[0017] 3. When the processing box of the present invention moves, the roller is driven to rotate, so that the second belt rotates and drives the cam to rotate. When the cam rotates, the second switch is squeezed. Under the action of the second return spring, the second switch moves back and forth, so that the third connecting tube is intermittently opened and closed, so that the active agent can be intermittently sprayed into the lithium iron manganese phosphate electrode material, and the sprayed active agent is uniform and appropriate.

[0018] 4. The present invention starts the second cylinder after the processing box moves to the bottom of the fixed connection support frame, pushing the pressure plate to move downward and press into the processing box, thereby achieving the effect of compacting the lithium manganese iron phosphate electrode material, improving the density and conductivity of the material, and reducing the porosity.

[0019] 5. When the processing box of the present invention is moved to the laser particle size analyzer, the laser particle size analyzer measures the particle size distribution of the material. When it is detected that the particle size distribution of the material is uneven, the alarm sounds an alarm to ensure the effectiveness and dispersion effect of the surfactant and avoid material agglomeration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the sealing mechanism of the present invention.

[0023] Figure 4 It is a partial three-dimensional structural cross-sectional view of the first type of the closing mechanism of the present invention.

[0024] Figure 5 It is a schematic diagram of the second partial structure of the closing mechanism of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the stirring mechanism of the present invention.

[0026] Figure 7 It is a schematic diagram of a first partial three-dimensional structure of the stirring mechanism of the present invention.

[0027] Figure 8 It is a schematic diagram of a second partial three-dimensional structure of the stirring mechanism of the present invention.

[0028] Fig. 9 It is a three-dimensional structural cross-sectional view of the opening and closing mechanism of the present invention.

[0029] Fig.10 It is a three-dimensional structural schematic diagram of the auxiliary mechanism of the present invention.

[0030] Fig.11 It is a partial three-dimensional structural schematic diagram of the auxiliary mechanism of the present invention.

[0031] Fig.12 It is a three-dimensional structural schematic diagram of the pressing mechanism and the detecting mechanism of the present invention.

[0032] The above drawings include the following reference numerals: 0, processing box, 1, connecting bracket, 2, conveyor belt, 3, first motor, 4, closing mechanism, 40, box body, 41, one-way valve, 42, heating tube, 43, rotating column, 44, connecting plate, 45, torsion spring, 46, guide plate, 47, first connecting spring, 5, stirring mechanism, 50, connecting fixed support frame, 51, first cylinder, 52, connecting fixed plate, 53, second motor, 54, stirring column, 55, first belt, 56, connecting guide frame, 57, second connecting spring, 58, first connecting pipe, 5 9. Nozzle, 6. Opening and closing mechanism, 60. Second connecting pipe, 61. Nozzle, 62. Guide inclined frame, 63. Third connecting spring, 64. First switch, 65. First return spring, 7. Auxiliary mechanism, 70. Third connecting pipe, 71. Second switch, 72. Fixed connecting frame, 73. Fourth connecting spring, 74. Roller, 75. Cam, 76. Second belt, 77. Second return spring, 8. Clamping mechanism, 80. Fixed connecting support frame, 81. Second cylinder, 82. Pressing plate, 9. Detection mechanism, 90. Laser particle size analyzer, 91. Alarm. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] A heat treatment device for lithium iron manganese phosphate electrode material, such as Figure 1-Figure 12 As shown, it includes a connecting bracket 1, a conveyor belt 2, a first motor 3, a closing mechanism 4 and an opening and closing mechanism 6. The conveyor belt 2 is provided on the upper part of the connecting bracket 1, and the first motor 3 is connected to the front side of the left part of the connecting bracket 1. The output shaft of the first motor 3 is connected to the conveyor belt 2. The first motor 3 is used to drive the conveyor belt 2. The connecting bracket 1 is provided with a closing mechanism 4, and the closing mechanism 4 is provided with an opening and closing mechanism 6.

[0035] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the closing mechanism 4 includes a box body 40, a one-way valve 41, a heating tube 42, a rotating column 43, a connecting plate 44, a torsion spring 45, a guide plate 46 and a first connecting spring 47. The box body 40 is connected to the upper left side of the connecting bracket 1, the one-way valve 41 is connected to the front side of the right side of the box body 40, the heating tube 42 is connected to the inner sides of the front and rear parts of the box body 40, the rotating column 43 is rotatably connected to the left and right sides of the box body 40, the connecting plates 44 are connected to the rotating columns 43, the torsion springs 45 are connected between the front and rear parts of the rotating columns 43 and the box body 40, the guide plates 46 are slidably connected to the lower parts of the connecting plates 44, and eight first connecting springs 47 are connected between the guide plates 46 and the connecting plates 44 connected thereto.

[0036] like Figure 1 and Fig. 9 As shown, the opening and closing mechanism 6 includes a second connecting tube 60, a nozzle 61, a guide inclined frame 62, a third connecting spring 63, a first switch 64 and a first return spring 65. The second connecting tube 60 is connected to the upper left side of the box body 40, and the nozzle 61 is connected to the inner side of the upper part of the box body 40. A plurality of nozzles are arranged on the lower side of the nozzle 61 to facilitate the ejection of the inert gas. The nozzle 61 is connected to the second connecting tube 60. The guide inclined frame 62 is slidably connected to the left side of the upper part of the box body 40. The rotating column 43 on the left side is pressed and matched with the guide inclined frame 62. The guide inclined frame 62 is also slidably connected to the second connecting tube 60. The third connecting spring 63 is connected between the guide inclined frame 62 and the second connecting tube 60. The first switch 64 is slidably connected to the left side of the upper part of the second connecting tube 60. The guide inclined frame 62 is pressed and matched with the first switch 64. The first return spring 65 is connected between the front and rear parts of the first switch 64 and the second connecting tube 60.

[0037] When using the present invention, firstly, the connecting bracket 1 is placed in the heat treatment area of ​​the lithium iron manganese phosphate electrode material, and then the processing box 0 is placed on the right side of the conveyor belt 2, and the lithium iron manganese phosphate electrode material is placed in the processing box 0, and then the first motor 3 is started to drive the conveyor belt 2 to rotate, and multiple processing boxes 0 are sequentially conveyed to the inside of the box body 40. When the processing box 0 moves to the right side of the box body 40, it pushes the right side connecting plate 44, the guide plate 46 and the rotating column 43 to rotate, and the torsion spring 45 is deformed, so that the processing box 0 moves to the inside of the box body 40. When the processing box 0 is separated from the right side connecting plate 44 and the guide plate 46, the torsion spring 45 is deformed. 5 is restored, driving the connection plate 44, the guide plate 46 and the rotating column 43 to reset, and the guide plate 46 is brought into contact with the conveyor belt 2 by the force of the first connection spring 47, so that the box body 40 is closed, and after the processing box 0 is moved into the box body 40, the heating tube 42 is heated to perform heat treatment on the lithium iron manganese phosphate electrode material. After the heat treatment is completed, the conveyor belt 2 continues to convey the processing box 0, so that the processing box 0 that has completed the heat treatment pushes the connection plate 44, the guide plate 46 and the rotating column 43 on the left side to rotate and open to separate from the box body 40, and at the same time, the processing box 0 that has not been processed pushes the connection plate 44 and the guide plate 46 on the right side The rotating column 43 rotates and opens to enter the box body 40. When the lithium iron manganese phosphate electrode material is heat-treated, the inert gas is introduced into the second connecting pipe 60, so that the nozzle 61 fills the inert gas into the box body 40 to prevent the material from being oxidized. When the inert gas is filled into the box body 40, other air is discharged from the one-way valve 41. When the heat-treated process box 0 pushes the left connecting plate 44 and the guide plate 46 to rotate, the left rotating column 43 rotates to squeeze the guide inclined frame 62 to move upward, and the third connecting spring 63 is squeezed and contracted, so that the guide inclined frame 62 squeezes the first switch 64 to move right to the third connecting spring 63. The second connecting tube 60 is closed to stop the inert gas from filling into the box body 40. When the processing box 0 that has completed the heat treatment is separated from the connecting plate 44 and the guide plate 46 on the left, the rotating column 43 on the left rotates and resets, and then the third connecting spring 63 rebounds to reset the guide bevel 62. Then the first reset spring 65 rebounds to reset the first switch 64, and the second connecting tube 60 is opened to allow the inert gas to fill into the box body 40. This achieves the effect of closing the box body 40 and then introducing the inert gas to heat treat the material, thereby reducing the waste of inert gas and improving the quality of heat treatment of the material.

[0038] like Figure 1 , Figure 6 , Figure 7 and Figure 8As shown, it also includes a stirring mechanism 5, which includes a connecting and fixing support frame 50, a first cylinder 51, a connecting and fixing plate 52, a second motor 53, a stirring column 54, a first belt 55, a connecting guide frame 56, a second connecting spring 57, a first connecting pipe 58 and a nozzle 59. The upper right side of the connecting bracket 1 is connected to the connecting and fixing support frame 50, the upper part of the connecting and fixing support frame 50 is connected to the first cylinder 51, the telescopic end of the first cylinder 51 is connected to the connecting and fixing plate 52, and the upper right side of the connecting and fixing plate 52 is connected to the A second motor 53 is connected, and stirring columns 54 are rotatably connected to the lower sides of the left and right parts of the connecting and fixing plate 52. The output shaft of the second motor 53 is connected to the stirring column 54 on the right side, and a first belt 55 is wound around the stirring columns 54 through a transmission wheel. A connecting guide frame 56 is slidably connected to the connecting and fixing plate 52, and four second connecting springs 57 are connected between the connecting guide frame 56 and the connecting and fixing plate 52. A first connecting pipe 58 is connected to the right part of the connecting and fixing support frame 50, and six nozzles 59 are connected to the lower side of the first connecting pipe 58.

[0039] The stirring mechanism 5 of the present device can be used to stir the lithium iron manganese phosphate electrode material. When the processing box 0 moves to the bottom of the connection and fixing support frame 50, the active agent is introduced into the first connection pipe 58, so that the nozzle 59 sprays the active agent into the processing box 0. After the processing box 0 moves to the bottom of the connection guide frame 56, the first cylinder 51 is started to push the connection and fixing plate 52 to move downward, so that the connection guide frame 56 contacts and presses the processing box 0, and then the connection and fixing plate 52 continues to move downward, and the second connection spring 57 is squeezed and contracted until the stirring column 54 is located inside the processing box 0. Then the second motor 53 is started to drive the stirring column 54 on the right to rotate, so that the first belt 55 rotates and drives the stirring column 54 on the left to rotate, so that the stirring column 54 stirs the lithium iron manganese phosphate electrode material in the processing box 0, thereby playing the role of mixing the active agent in the lithium iron manganese phosphate electrode material, dispersing it, and preventing the material from agglomerating. After stirring, the connection and fixing plate 52 is moved upward to reset, and then the second connection spring 57 rebounds to reset the connection guide frame 56.

[0040] like Figure 1 , Fig.10 and Fig.11As shown, an auxiliary mechanism 7 is also included, and the auxiliary mechanism 7 includes a third connecting pipe 70, a second switch 71, a fixed connecting frame 72, a fourth connecting spring 73, a roller 74, a cam 75, a second belt 76 and a second return spring 77. The third connecting pipe 70 is connected to the rear side of the right part of the fixed support frame 50, and a joint is provided at the rear side of the lower part of the third connecting pipe 70 to facilitate the connection of the pipeline. The third connecting pipe 70 is connected to the first connecting pipe 58, and the second switch 71 is slidably connected to the front side of the lower part of the third connecting pipe 70. A fixed connecting frame 72 is slidably connected to the lower right part of the fixed support frame 50, a fourth connecting spring 73 is connected between the fixed connecting frame 72 and the fixed support frame 50, a roller 74 is rotatably connected to the front side of the fixed connecting frame 72, a cam 75 is rotatably connected to the rear side of the fixed connecting frame 72, the cam 75 is squeezed and fitted with the second switch 71, a second belt 76 is wound around the cam 75 and the roller 74 through a transmission wheel, and a second return spring 77 is connected between the left and right parts of the second switch 71 and the third connecting tube 70.

[0041] By using the auxiliary mechanism 7 of the device, the activating agent can be intermittently sprayed into the lithium iron manganese phosphate electrode material. The activating agent is introduced into the third connecting tube 70. When the processing box 0 is placed on the right side of the conveyor belt 2, the processing box 0 contacts the roller 74 to squeeze the fixed connecting frame 72 to move backward, and the fourth connecting spring 73 is squeezed and contracted, so that the cam 75 contacts the second switch 71. When the processing box 0 moves, it drives the roller 74 to rotate, so that the second belt 76 rotates and drives the cam 75 to rotate. When the cam 75 rotates, it squeezes the second switch 71. Under the action of the second return spring 77, the second switch 71 moves back and forth, so that the third connecting tube 70 is intermittently opened and closed, thereby enabling the activating agent to be intermittently sprayed into the lithium iron manganese phosphate electrode material, and the sprayed activating agent is uniform and appropriate.

[0042] like Figure 1 and Fig.12 As shown, it also includes a clamping mechanism 8, which includes a fixed connection support frame 80, a second cylinder 81 and a pressure plate 82. The fixed connection support frame 80 is connected to the upper right side of the connecting bracket 1, and the fixed connection support frame 80 is located on the left side of the connected fixed support frame 50. The upper part of the fixed connection support frame 80 is connected to the second cylinder 81, and the pressure plate 82 is connected to the telescopic end of the second cylinder 81.

[0043] The clamping mechanism 8 of the device can be used to clamp the lithium iron manganese phosphate electrode material. When the processing box 0 moves to the bottom of the fixed connection support frame 80, the second cylinder 81 is started to push the pressure plate 82 downward and press it into the processing box 0, thereby compressing the lithium iron manganese phosphate electrode material, improving the density and conductivity of the material, and reducing the porosity.

[0044] like Figure 1 and Fig.12 As shown, it also includes a detection mechanism 9, which includes a laser particle size analyzer 90 and an alarm 91. The laser particle size analyzer 90 is connected to the left part of the fixedly connected support frame 80, and the alarm 91 is connected to the left part of the fixedly connected support frame 80. The alarm 91 is located on the upper part of the laser particle size analyzer 90, and the laser particle size analyzer 90 is electrically connected to the alarm 91.

[0045] The detection mechanism 9 of the device can be used to detect the treatment effect of the surfactant on the lithium iron manganese phosphate electrode material. When the processing box 0 moves to the laser particle size analyzer 90, the laser particle size analyzer 90 measures the particle size distribution of the material. When it is detected that the particle size distribution of the material is uneven, the alarm 91 sends out an alarm reminder, thereby ensuring the effectiveness and dispersion effect of the surfactant and avoiding material agglomeration.

[0046] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A heat treatment device for lithium iron manganese phosphate electrode material, characterized in that: The invention comprises a connecting bracket (1), a conveyor belt (2), a first motor (3), a closing mechanism (4) and an opening and closing mechanism (6); the conveyor belt (2) is arranged on the upper part of the connecting bracket (1); the first motor (3) is connected to the front side of the left part of the connecting bracket (1); the output shaft of the first motor (3) is connected to the conveyor belt (2); the first motor (3) is used to drive the conveyor belt (2); the connecting bracket (1) is provided with a closing mechanism (4) capable of closing the heat treatment of lithium manganese iron phosphate electrode material; the closing mechanism (4) is provided with an opening and closing mechanism (6) capable of controlling the introduction of inert gas.

2. A heat treatment device for lithium iron manganese phosphate electrode material according to claim 1, characterized in that: The sealing mechanism (4) comprises a box body (40), a heating tube (42), a rotating column (43), a connecting plate (44), a torsion spring (45), a guide plate (46) and a first connecting spring (47). The upper left side of the connecting bracket (1) is connected to the box body (40). The inner sides of the front and rear parts of the box body (40) are both connected to the heating tube (42). The left and right sides of the box body (40) are both rotatably connected to the rotating column (43). The rotating column (43) is connected to the connecting plate (44). 4), the front and rear parts of the rotating column (43) are connected to the box body (40) with a torsion spring (45), the lower part of the connecting plate (44) is slidably connected to a guide plate (46), and a plurality of first connecting springs (47) are connected between the guide plate (46) and the connecting plate (44) connected thereto. When the processing box (0) moves to the right side of the box body (40), the connecting plate (44), the guide plate (46) and the rotating column (43) on the right side are pushed to rotate, and the torsion spring (45) is deformed. , so that the processing box (0) moves to the inside of the box body (40); when the processing box (0) is separated from the connecting plate (44) and the guide plate (46), the torsion spring (45) is restored, driving the connecting plate (44), the guide plate (46) and the rotating column (43) to reset; the guide plate (46) is brought into contact with the conveyor belt (2) by the action force of the first connecting spring (47), so that the box body (40) is closed; after the processing box (0) moves to the inside of the box body (40), the heating tube (42) is heated to heat-treat the lithium iron manganese phosphate electrode material; after the heat treatment is completed, the conveyor belt (2) continues to transport the processing box (0), so that the processing box (0) that has completed the heat treatment pushes the connecting plate (44), the guide plate (46) and the rotating column (43) on the left side to rotate and open to separate from the box body (40); at the same time, the processing box (0) that has not been processed pushes the connecting plate (44), the guide plate (46) and the rotating column (43) on the right side to rotate and open to enter the box body (40).

3. A heat treatment device for lithium iron manganese phosphate electrode material according to claim 2, characterized in that: It also includes a one-way valve (41), and the front side of the right part of the box body (40) is connected to the one-way valve (41).

4. A heat treatment device for lithium iron manganese phosphate electrode material according to claim 2, characterized in that: The opening and closing mechanism (6) comprises a second connecting tube (60), a nozzle (61), a guide inclined frame (62), a third connecting spring (63), a first switch (64) and a first reset spring (65). The second connecting tube (60) is connected to the upper left side of the box body (40), the nozzle (61) is connected to the inner side of the upper part of the box body (40), the nozzle (61) is connected to the second connecting tube (60), the upper left side of the box body (40) is slidably connected to the guide inclined frame (62), the left rotating column (43) is pressed and matched with the guide inclined frame (62), the guide inclined frame (62) is also slidably connected to the second connecting tube (60), the third connecting spring (63) is connected between the guide inclined frame (62) and the second connecting tube (60), the upper left side of the second connecting tube (60) is slidably connected to the first switch (64), the guide inclined frame (62) is pressed and matched with the first switch (64), the front and rear sides of the first switch (64) are connected to the second connecting tube (60). A first return spring (65) is connected between the first and second connecting tubes (60). When the heat-treated processing box (0) pushes the left connecting plate (44) and the guide plate (46) to rotate, the left rotating column (43) rotates and squeezes the guide inclined frame (62) to move upward, and the third connecting spring (63) is squeezed and contracted, so that the guide inclined frame (62) squeezes the first switch (64) to move rightward to close the second connecting tube (60), so that the inert gas stops filling into the box body (40). When the heat-treated processing box (0) is separated from the left connecting plate (44) and the guide plate (46), the left rotating column (43) rotates and resets, and then the third connecting spring (63) rebounds, so that the guide inclined frame (62) is reset, and then the first return spring (65) rebounds, so that the first switch (64) is reset, and the second connecting tube (60) is opened, so that the inert gas is filled into the box body (40).

5. A heat treatment device for lithium iron manganese phosphate electrode material according to claim 4, characterized in that: A plurality of nozzles are arranged on the lower side of the nozzle pipe (61).

6. A heat treatment device for lithium iron manganese phosphate electrode material according to claim 4, characterized in that: The invention also comprises a stirring mechanism (5), which comprises a connecting and fixing support frame (50), a first cylinder (51), a connecting and fixing plate (52), a second motor (53), a stirring column (54), a first belt (55), a connecting guide frame (56), a second connecting spring (57), a first connecting pipe (58) and a nozzle (59). The upper right side of the connecting bracket (1) is connected to the connecting and fixing support frame (50), the upper part of the connecting and fixing support frame (50) is connected to the first cylinder (51), and the first cylinder ( A connecting and fixing plate (52) is connected to the telescopic end of the connecting and fixing plate (51), a second motor (53) is connected to the upper right side of the connecting and fixing plate (52), stirring columns (54) are rotatably connected to the lower left and right sides of the connecting and fixing plate (52), an output shaft of the second motor (53) is connected to the stirring column (54) on the right side, a first belt (55) is wound around the stirring columns (54) through a transmission wheel, a connecting guide frame (56) is slidably connected to the connecting and fixing plate (52), and a connecting guide frame (56) is connected to the connecting and fixing plate (52). A plurality of second connection springs (57) are connected, a first connection pipe (58) is connected to the right side of the connection fixing support frame (50), and a plurality of nozzles (59) are connected to the lower side of the first connection pipe (58). When the processing box (0) moves to the bottom of the connection fixing support frame (50), the active agent is introduced into the first connection pipe (58), so that the nozzle (59) sprays the active agent into the processing box (0). After the processing box (0) moves to the bottom of the connection guide frame (56), the first cylinder (51) is started to push the connection fixing plate (52) to The connecting guide frame (56) moves downward so that the connecting guide frame (56) contacts and presses the processing box (0), and then the connecting fixing plate (52) continues to move downward, and the second connecting spring (57) is squeezed and contracted until the stirring column (54) is located inside the processing box (0). Then, the second motor (53) is started to drive the stirring column (54) on the right to rotate, so that the first belt (55) rotates and drives the stirring column (54) on the left to rotate, so that the stirring column (54) stirs the lithium manganese iron phosphate electrode material in the processing box (0).

7. A heat treatment device for lithium iron manganese phosphate electrode material according to claim 6, characterized in that: The auxiliary mechanism (7) also includes a third connecting tube (70), a second switch (71), a fixed connecting frame (72), a fourth connecting spring (73), a roller (74), a cam (75), a second belt (76) and a second reset spring (77). The third connecting tube (70) is connected to the right rear side of the connecting fixed support frame (50). The third connecting tube (70) is connected to the first connecting tube (58). The second switch (71) is slidably connected to the front side of the lower part of the third connecting tube (70). The fixed connecting frame (72) is slidably connected to the right lower part of the connecting fixed support frame (50). The fourth connecting spring (73) is connected between the fixed connecting frame (72) and the connecting fixed support frame (50). The front side of the fixed connecting frame (72) is rotatably connected to the roller (74). The rear side of the fixed connecting frame (72) is rotatably connected to the cam (75). The cam (75) is connected to the second switch ( The cam (75) and the roller (74) are squeezed and matched, and a second belt (76) is wound around the cam (75) and the roller (74) through a transmission wheel. A second return spring (77) is connected between the left and right parts of the second switch (71) and the third connecting tube (70). The active agent is passed into the third connecting tube (70). When the processing box (0) is placed on the right part of the conveyor belt (2), the processing box (0) contacts and squeezes the roller (74) to move the fixed connecting frame (72) backward. The fourth connecting spring (73) is squeezed and contracted, so that the cam (75) contacts the second switch (71). When the processing box (0) moves, the roller (74) is driven to rotate by friction, so that the second belt (76) rotates and drives the cam (75) to rotate. When the cam (75) rotates, it squeezes the second switch (71). Under the action of the second return spring (77), the second switch (71) moves back and forth, so that the third connecting tube (70) is intermittently opened and closed.

8. A heat treatment device for lithium iron manganese phosphate electrode material according to claim 7, characterized in that: A joint is provided at the rear side of the lower portion of the third connecting pipe (70).

9. A heat treatment device for lithium iron manganese phosphate electrode material according to claim 7, characterized in that: The invention also comprises a clamping mechanism (8), which comprises a fixed connection support frame (80), a second cylinder (81) and a pressure plate (82); the upper right side of the connection support frame (1) is connected to the fixed connection support frame (80); the fixed connection support frame (80) is located on the left side of the connection fixed support frame (50); the upper part of the fixed connection support frame (80) is connected to the second cylinder (81); the telescopic end of the second cylinder (81) is connected to the pressure plate (82); when the processing box (0) moves to the bottom of the fixed connection support frame (80), the second cylinder (81) is started to push the pressure plate (82) to move downward and press it into the processing box (0).

10. A heat treatment device for lithium iron manganese phosphate electrode material according to claim 9, characterized in that: The processing box (0) further comprises a detection mechanism (9), the detection mechanism (9) comprising a laser particle size analyzer (90) and an alarm (91), the laser particle size analyzer (90) being fixedly connected to the left part of the support frame (80), the alarm (91) being fixedly connected to the left part of the support frame (80), the alarm (91) being located on the upper part of the laser particle size analyzer (90), the laser particle size analyzer (90) being electrically connected to the alarm (91), when the processing box (0) moves to the laser particle size analyzer (90), the laser particle size analyzer (90) measures the particle size distribution of the material, and when it is detected that the particle size distribution of the material is uneven, the alarm (91) issues an alarm reminder.

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