Furnace body structure of lithium battery silicon-oxygen negative electrode material coated calcining furnace

Abstract

The utility model relates to the technical field of industrial furnaces, in particular to a furnace body structure of a lithium battery silica cathode material coated calcining furnace, which comprises a shell and is characterized in that a heat transfer rod is rotatably connected to the middle of the top end of the shell, a heating device is arranged at the top end of the heat transfer rod, and a plurality of groups of heating plates are arranged on the outer side wall of the heat transfer rod in an array manner. According to the furnace body structure of the lithium battery silicon-oxygen cathode material coating calcining furnace, the multiple groups of guide plates rotate through the operation of the first motor, materials are stably pushed into the shell at a constant speed, and the multiple groups of heating plates generate heat through the heating device, so that the coating and calcining effects of the materials are consistent, the product quality is improved, and the production cost is reduced. A fourth motor runs to drive a sieve plate to jolt up and down, calcined materials are dispersed and discharged, a third transmission rod rotates to drive a first bevel gear and a second bevel gear to rotate, multiple sets of sweeping strips at the upper end of a sweeping rod sweep the bottom end of the sieve plate, and therefore material residues are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial furnace technology field especially relates to a lithium battery silicon oxygen negative pole material coating calcining furnace's furnace body structure. BACKGROUND

[0002] Lithium battery as a kind of efficient, environmental protection energy storage device, its market scale continues to expand, application field is also increasingly widespread, gradually expands from traditional consumer electronics field to electric vehicle, energy storage power station etc. Emerging field, in the component part of lithium battery, negative pole material plays a key role to the performance of battery, and silicon oxygen negative pole material because it has higher theoretical specific capacity (compared with traditional graphite negative pole material has significantly improved), become one of the current research and development hotspot, in the preparation process of silicon oxygen negative pole material, coating calcining is a crucial process link, the existing calcining furnace has some shortcomings, first, if silicon oxygen negative pole material is not fully calcined in the area of lower temperature, it will lead to the crystallinity of material not enough, affect its electrochemical performance, and in the area of temperature too high, material can be because excessive reaction and produce impurities, this temperature inhomogeneous can make the material coating and calcining effect be inconsistent, affect product quality, second, the particle size distribution of silicon oxygen negative pole material is uneven or sticky, easy to feed uneven, in turn affect the residence time and heating condition of material in furnace, and discharging uneven can lead to part of material in furnace residence time too long, be overcalcined in order to solve the above problems, we propose a kind of lithium battery silicon oxygen negative pole material coating calcining furnace's furnace body structure. CONTENT OF UTILITY MODEL

[0003] The utility model mainly aims at providing a kind of lithium battery silicon oxygen negative pole material coating calcining furnace's furnace body structure, can effectively solve the problems in the background art.

[0004] To achieve the above object, the technical scheme that the utility model adopts is as follows:

[0005] The utility model provides a kind of lithium battery silicon-oxygen negative electrode material coating calcining furnace's furnace body structure, including shell, it is characterized by: the middle part of the top of the shell is rotatably connected with heat transfer rod, the top of the heat transfer rod is provided with heating device, the outer lateral wall of the heat transfer rod is arrayed with multiple groups of heating plate, the top of the heating plate is all opened with multiple groups of air hole, the inner lateral wall of the shell is opened with opening and is provided with inner lining in inner top, the front end of the shell is rotatably connected with second transmission shaft, the front end of the second transmission shaft is provided with third motor, the inner lining is rotatably connected with multiple groups of second transmission rod through shell, multiple groups of the second transmission rod is transmissionally connected with third transmission strip, the second transmission shaft and multiple groups of second transmission rod are transmissionally connected with fourth transmission strip, the front end of the shell is provided with protective shell and multiple groups of second transmission rod and third transmission strip, fourth transmission strip are located in its interior, the outer lateral wall of multiple groups of the second transmission rod is all fixedly connected with guide ring, the side of multiple groups of the guide ring close to heat transfer rod is in contact with the outer lateral wall of heating plate, the side of multiple groups of the guide ring away from heat transfer rod is in contact with the inner lateral wall of inner lining.

[0006] Preferably, the rear side of the top of the shell is rotatably connected with a first transmission shaft, the top of the first transmission shaft is provided with a second motor, and the heat transfer rod and the first transmission shaft are transmissionally connected with a second transmission strip.

[0007] Preferably, the top of the shell is provided with an opening on both sides and is fixedly connected with a feeding pipe, the front end of the two feeding pipes is rotatably connected with a first transmission rod, the front end of one of the first transmission rods is provided with a first motor, multiple first transmission rods are transmissionally connected with a first transmission strip, and the outer lateral wall of the first transmission rod is circumferentially arrayed with a guide plate.

[0008] Preferably, the inner lateral wall of the shell is fixedly connected with a fixing frame, the top of the fixing frame is fixedly connected with the lower end of the inner lining, the bottom end of the fixing frame is provided with multiple second springs, the bottom end of the multiple second springs is provided with a sieve plate, the top of the sieve plate is provided with a plurality of groups of holes, the outer lateral wall of the sieve plate is in contact with the inner lateral wall of the shell, the top of the sieve plate is provided with a sleeve in the middle, the top of the sleeve is provided with a first spring, and the top of the first spring is rotatably connected with the bottom end of the heat transfer rod.

[0009] Preferably, the front end of the shell is provided with a fourth motor, the output end of the fourth motor penetrates through the shell and is provided with a third transmission rod with the sleeve, the other end of the third transmission rod is rotatably connected with the inner side of the shell, the outer lateral wall of the third transmission rod is provided with a cam at both ends, and the outer lateral wall of the cam is in close contact with the top of the sieve plate.

[0010] Preferably, a first bevel gear is arranged in the middle of the outer wall of the third transmission rod, a fourth transmission rod is rotatably connected to the bottom end of the sieve plate, a second bevel gear is arranged in the fourth transmission rod and penetrates through the sieve plate, the second bevel gear is engaged with the first bevel gear, the first bevel gear and the second bevel gear are arranged in the sleeve, a cleaning rod is arranged at the bottom end of the fourth transmission rod, and a plurality of cleaning strips are arranged at the top end of the cleaning rod and are in contact with the bottom end of the sieve plate.

[0011] Preferably, a support frame is fixedly connected to the outer wall of the shell, a hole is formed in the upper left side of the outer wall of the shell and an air inlet pipe is fixedly connected to the hole, a hole is formed in the lower left side of the outer wall of the shell and an air outlet pipe is fixedly connected to the hole, and a discharge pipe is screwedly connected to the lower side of the outer wall of the shell.

[0012] Compared with the prior art, the furnace body structure of the lithium battery silicon-oxygen negative electrode material coating calcining furnace has the following beneficial effects: under the transmission of the first motor and the first transmission strip, the two groups of first transmission rods and the plurality of guide plates are driven to rotate, so that the materials are uniformly and stably pushed into the shell, reach the upper ends of the plurality of heating plates, and start preheating through the operation of the heating device to make the plurality of heating plates generate heat, so that the temperature is uniform and the coating and calcining effects of the materials are consistent, and the product quality is improved. At this time, inert gas is introduced into the shell through the air inlet pipe, when the temperature continues to rise, the exhaust gas and volatile components generated in the reaction are discharged in time through the air outlet pipe, the atmosphere in the furnace is kept pure, when the coating calcining is completed, the guide ring is reversely rotated downward through the operation of the third motor, the first transmission shaft is driven to rotate through the operation of the second motor, the heat transfer rod is driven to rotate through the second transmission strip, and the plurality of heating plates are driven to rotate, so that the materials on the upper ends of the heating plates are scattered and fall downward, the third transmission rod and the plurality of cams are driven to rotate through the operation of the fourth motor, so that the sieve plate is shaken up and down under the action of the plurality of second springs, so that the calcined materials are dispersed and discharged, the first bevel gear is driven to rotate through the rotation of the third transmission rod, so that the second bevel gear is driven to rotate, and the plurality of cleaning strips at the upper end of the cleaning rod clean the bottom end of the sieve plate, so that the materials are prevented from being left. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is a whole structure cross-sectional view of the utility model one;

[0015] Figure 3 It is a whole structure cross-sectional view of the utility model two;

[0016] Figure 4 It is a local structure schematic view of the utility model one;

[0017] Figure 5 The second part of the local structure of the utility model is a schematic diagram.

[0018] In the figure: 1, shell; 11, air inlet pipe; 12, support frame; 13, feeding pipe; 14, first motor; 15, first transmission bar; 16, first transmission rod; 17, guide plate; 18, discharge pipe; 19, air outlet pipe; 2, second motor; 21, first transmission shaft; 22, second transmission bar; 23, heating device; 24, heat transfer rod; 25, heating plate; 26, air hole; 27, guide ring; 28, second transmission rod; 29, second transmission shaft; 3, third motor; 31, third transmission bar; 32, fourth transmission bar; 33, first spring; 34, sleeve; 35, inner liner; 36, fixing frame; 37, second spring; 38, sieve plate; 39, fourth motor; 4, third transmission rod; 41, cam third transmission rod; 42, first bevel gear; 43, second bevel gear; 44, fourth transmission rod; 45, cleaning rod; 46, cleaning bar. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0020] As Figures 1-5 shown in the figure, a lithium battery silicon-oxygen negative electrode material coated calcining furnace body structure, including shell 1, its characterized in that: shell 1 top middle part rotationally connected with heat transfer rod 24, heat transfer rod 24 top end is provided with heating device 23, heat transfer rod 24 outer side wall is arrayed with multiple sets of heating plate 25, heating plate 25 top end all are provided with multiple sets of air hole 26, shell 1 inner side side wall is provided with opening and inner side top end is provided with inner liner 35, shell 1 front end rotationally connected with second transmission shaft 29, second transmission shaft 29 front end is provided with third motor 3, inner liner 35 inner side is rotationally connected with multiple sets of second transmission rod 28 through shell 1, multiple sets of second transmission rod 28 are transmissionally connected with third transmission bar 31, second transmission shaft 29 and multiple sets of second transmission rod 28 are transmissionally connected with fourth transmission bar 32, shell 1 front end is provided with protective shell and multiple sets of second transmission rod 28 and third transmission bar 31, fourth transmission bar 32 are located in its interior, multiple sets of second transmission rod 28 outer side wall all are fixedly connected with guide ring 27, multiple sets of guide ring 27 are close to one side of heat transfer rod 24 and contact with heating plate 25 outer side wall, multiple sets of guide ring 27 are away from one side of heat transfer rod 24 and contact with inner liner 35 inner side wall.

[0021] In the embodiment, shell 1 top rear side is rotationally connected with first transmission shaft 21, first transmission shaft 21 top end is provided with second motor 2, heat transfer rod 24 and first transmission shaft 21 are transmissionally connected with second transmission bar 22.

[0022] Specifically, the first transmission shaft 21 is driven to rotate by the operation of the second motor 2, and the heat transfer rod 24 is driven to rotate by the second transmission bar 22.

[0023] In this embodiment, the housing 1 is provided with openings on the left and right sides of the top end and is fixedly connected with inlet pipes 13. The front ends of the two groups of inlet pipes 13 are rotatably connected with first transmission rods 16. The front end of one group of first transmission rods 16 is provided with a first motor 14. A plurality of first transmission rods 16 are drivingly connected with first transmission bars 15. The outer side walls of the first transmission rods 16 are circumferentially arranged with guide plates 17.

[0024] Specifically, the mixed materials are delivered into the housing 1 through the plurality of inlet pipes 13. The materials in the inlet pipes 13 enter the top ends of the guide plates 17 under the action of gravity. At this time, the two groups of first transmission rods 16 and the plurality of guide plates 17 are driven to rotate by the operation of the first motor 14 and the transmission of the first transmission bar 15, so as to uniformly and stably push the materials into the interior of the housing 1.

[0025] In this embodiment, the inner side wall of the housing 1 is fixedly connected with a fixed frame 36. The top end of the fixed frame 36 is fixedly connected with the lower end of the inner liner 35. The bottom end of the fixed frame 36 is provided with a plurality of second springs 37. The bottom end of the plurality of second springs 37 is provided with a sieve plate 38. The top end of the sieve plate 38 is provided with a plurality of holes. The outer side wall of the sieve plate 38 is in contact with the inner side wall of the housing 1. The top end of the sieve plate 38 is provided with a sleeve 34. The top end of the sleeve 34 is provided with a first spring 33. The top end of the first spring 33 is rotatably connected with the bottom end of the heat transfer rod 24.

[0026] Specifically, the first spring 33 provides a corresponding buffer force for the heat transfer rod 24 when the sleeve 34 is shaken up and down, so as to prevent the heat transfer rod 24 from shaking.

[0027] In this embodiment, the front end of the housing 1 is provided with a fourth motor 39. The output end of the fourth motor 39 penetrates the housing 1 and is provided with a third transmission rod 4. The other end of the third transmission rod 4 is rotatably connected with the inner side of the housing 1. The outer side wall of the third transmission rod 4 is provided with cams 41 at the front and rear ends. The outer side wall of the cam 41 is in close contact with the top end of the sieve plate 38.

[0028] Specifically, the third transmission rod 4 and the plurality of cams 41 are driven to rotate by the operation of the fourth motor 39, so as to make the sieve plate 38 shake up and down under the action of the plurality of second springs 37, thereby dispersing and discharging the calcined materials.

[0029] In the embodiment, the third transmission rod 4 is provided with a first bevel gear 42 in the middle of the outer side wall, the sieve plate 38 is rotatably connected with a fourth transmission rod 44 at the bottom end, the fourth transmission rod 44 is provided with a second bevel gear 43 at the other end and penetrates through the sieve plate 38, the second bevel gear 43 is engaged with the first bevel gear 42, the first bevel gear 42 and the second bevel gear 43 are both located in the sleeve 34, the fourth transmission rod 44 is provided with a cleaning rod 45 at the bottom end of the outer side wall, the cleaning rod 45 is provided with a plurality of cleaning strips 46 at the top end, and the top end of the cleaning strip 46 is in contact with the bottom end of the sieve plate 38.

[0030] Specifically, the third transmission rod 4 is rotated to drive the first bevel gear 42 to rotate, thereby driving the second bevel gear 43 to rotate, so that the plurality of cleaning strips 46 at the top end of the cleaning rod 45 clean the bottom end of the sieve plate 38, thereby preventing material residues.

[0031] In the embodiment, the shell 1 is fixedly connected with a support frame 12 at the outer side wall, the shell 1 is fixedly connected with an air inlet pipe 11 at the upper left side of the outer side wall and is provided with a hole, the shell 1 is fixedly connected with an air outlet pipe 19 at the lower left side of the outer side wall and is provided with a hole, and the shell 1 is threadedly connected with a discharge pipe 18 at the lower side of the outer side wall.

[0032] Specifically, the inert gas such as nitrogen or argon is introduced into the shell 1 through the air inlet pipe 11 to discharge the air in the shell 1, so as to create an oxygen-free or low-oxygen environment, prevent the material from being oxidized at high temperature, and timely discharge the waste gas and volatile components generated by the reaction through the air outlet pipe 19 to keep the atmosphere in the furnace pure, and when the temperature in the shell 1 is reduced to a suitable temperature, the coated lithium battery silicon-oxygen negative electrode material after calcination is discharged out of the shell 1 through the discharge pipe 18.

[0033] It needs to be explained that the utility model discloses a kind of furnace body structure of lithium battery silicon-oxygen negative electrode material coating calcining furnace, user will be mixed by multiple groups of feeding pipe 13 Material delivery into shell 1, material in feeding pipe 13 Under the action of gravity, enter the top end of guide plate 17, at this time, by the operation of first motor 14 With the transmission of first transmission bar 15, drive two groups of first transmission rod 16 With multiple guide plates 17 Rotate, to push material into shell 1 inside at uniform speed, stably, to reach the upper end of multiple heating plate 25, by the operation of heating device 23 Multiple heating plate 25 Produce heat, to start preheating, at this time, by air inlet pipe 11 Into shell 1 Nitrogen or argon is passed into inert gas, to discharge the air in shell 1, create an oxygen-free or low-oxygen environment, prevent material from being oxidized under high temperature, by multiple groups of air hole 26 Guide gas, by lining 35 Reduce heat loss, improve thermal efficiency, when temperature continues to rise, by air outlet pipe 19 Timely discharge waste gas and volatile fraction generated by reaction, keep the purity of atmosphere in furnace, when coating calcining is completed, heating device 23 Stop working, the temperature in shell 1 Start natural drop, by the operation of third motor 3 Drive second transmission shaft 29 Rotate, and by third transmission bar 31 With fourth transmission bar 32 Drive multiple second transmission rod 28 Rotate, to make guide ring 27 Reverse downwards, at this time, by the operation of second motor 2 Drive first transmission shaft 21 Rotate, and by second transmission bar 22 Drive heat transfer rod 24 Rotate, and drive multiple heating plate 25 Rotate, to make the material on the upper end of heating plate 25 Spread, make it drop downwards, by the operation of fourth motor 39 Drive third transmission rod 4 With multiple cam 41 Rotate, to make screen plate 38 Up and down swing under the action of multiple second spring 37, to discharge the material after calcining, by first spring 33 Make sleeve 34 When up and down swing, provide corresponding buffer force to heat transfer rod 24, prevent heat transfer rod 24 From shaking, by third transmission rod 4 Rotate Drive first bevel gear 42 Rotate, to drive second bevel gear 43 Rotate, make multiple cleaning bar 46 On the upper end of cleaning rod 45 Clean the bottom of screen plate 38, to prevent material from remaining, when the temperature in shell 1 Reduce to suitable temperature, by discharge pipe 18 Lithium battery silicon-oxygen negative electrode material after coating calcining is discharged from shell 1.

[0034] The basic principles and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A furnace body structure for a lithium battery silicon-oxygen anode material coating calcination furnace, comprising a shell (1), characterized in that: A heat transfer rod (24) is rotatably connected to the top center of the shell (1). A heating device (23) is provided at the top of the heat transfer rod (24). Multiple sets of heating plates (25) are arranged in an array on the outer side wall of the heat transfer rod (24). Multiple sets of ventilation holes (26) are opened at the top of each heating plate (25). An opening is opened on the inner side wall of the shell (1), and an inner liner (35) is provided at the top of the inner side. A second drive shaft (29) is rotatably connected to the front end of the shell (1). A third motor (3) is provided at the front end of the second drive shaft (29). Multiple sets of second drive rods (28) are rotatably connected through the inner side of the inner liner (35) through the shell (1). The second transmission rod (28) is connected to the third transmission bar (31). The second transmission shaft (29) is connected to the fourth transmission bar (32) of the multiple sets of second transmission rods (28). The front end of the housing (1) is provided with a protective shell, and the multiple sets of second transmission rods (28), the third transmission bar (31), and the fourth transmission bar (32) are located inside it. The outer walls of the multiple sets of second transmission rods (28) are all fixedly connected with guide rings (27). The side of the multiple sets of guide rings (27) close to the heat transfer rod (24) is in contact with the outer wall of the heating plate (25), and the side of the multiple sets of guide rings (27) away from the heat transfer rod (24) is in contact with the inner wall of the lining (35).

2. The furnace body structure of the lithium battery silicon-oxygen anode material coating calcination furnace according to claim 1, characterized in that: The top rear side of the housing (1) is rotatably connected to a first drive shaft (21), and a second motor (2) is provided at the top of the first drive shaft (21). The heat transfer rod (24) is connected to the first drive shaft (21) by a second drive bar (22).

3. The furnace body structure of the lithium battery silicon-oxygen anode material coating calcination furnace according to claim 1, characterized in that: The top of the housing (1) has openings on both the left and right sides and is fixedly connected to feed pipes (13). The front ends of the two sets of feed pipes (13) are rotatably connected to first transmission rods (16). The front end of one set of first transmission rods (16) is provided with a first motor (14). Multiple sets of first transmission rods (16) are connected to first transmission bars (15). The outer side wall of the first transmission rods (16) is provided with guide plates (17) in a circular array.

4. The furnace body structure of the lithium battery silicon-oxygen anode material coating calcination furnace according to claim 1, characterized in that: A fixing frame (36) is fixedly connected to the inner side wall of the shell (1). The top of the fixing frame (36) is fixedly connected to the lower end of the inner lining (35). Multiple sets of second springs (37) are provided at the bottom of the fixing frame (36). A sieve plate (38) is provided at the bottom of the multiple sets of second springs (37). Several sets of holes are opened at the top of the sieve plate (38). The outer side wall of the sieve plate (38) is in contact with the inner side wall of the shell (1). A sleeve (34) is provided in the middle of the top of the sieve plate (38). A first spring (33) is provided at the top of the sleeve (34). The top of the first spring (33) is rotatably connected to the bottom of the heat transfer rod (24).

5. The furnace body structure of the lithium battery silicon-oxygen anode material coating calcination furnace according to claim 1, characterized in that: The front end of the housing (1) is provided with a fourth motor (39). The output end of the fourth motor (39) passes through the housing (1) and the sleeve (34) and is provided with a third transmission rod (4). The other end of the third transmission rod (4) is rotatably connected to the inner side of the housing (1). The front and rear ends of the outer wall of the third transmission rod (4) are provided with cams (41). The outer wall of the cam (41) is in close contact with the top of the sieve plate (38).

6. The furnace body structure of the lithium battery silicon-oxygen anode material coating calcination furnace according to claim 5, characterized in that: A first bevel gear (42) is provided in the middle of the outer side wall of the third transmission rod (4). A fourth transmission rod (44) is rotatably connected to the bottom end of the sieve plate (38). A second bevel gear (43) is provided through the sieve plate (38) at the other end of the fourth transmission rod (44). The second bevel gear (43) meshes with the first bevel gear (42). Both the first bevel gear (42) and the second bevel gear (43) are located inside the sleeve (34). A cleaning rod (45) is provided on the outer side wall of the bottom end of the fourth transmission rod (44). Multiple sets of cleaning strips (46) are provided at the top of the cleaning rod (45). The top of the cleaning strips (46) contacts the bottom end of the sieve plate (38).

7. The furnace body structure of the lithium battery silicon-oxygen anode material coating calcination furnace according to claim 1, characterized in that: A support frame (12) is fixedly connected to the outer wall of the housing (1). An air inlet pipe (11) is fixedly connected to the upper left side of the outer wall of the housing (1). An air outlet pipe (19) is fixedly connected to the lower left side of the outer wall of the housing (1). A discharge pipe (18) is threadedly connected to the lower side of the outer wall of the housing (1).

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