Horizontal mixed kiln

Abstract

The utility model discloses a horizontal mixed kiln which comprises a group of heating devices and a group of cooling devices which are horizontally arranged and sequentially communicated from top to bottom, the heating devices and the cooling devices are provided with supports, the supports are arranged in an up-and-down laminated mode, the heating devices and the cooling devices are provided with rotating tanks capable of moving on the supports, and mixing structures are arranged in the rotating tanks. A feeding assembly is arranged at one end of the rotating tank, and a discharging assembly and an exhaust pipe are arranged at the other end of the rotating tank. The horizontal mixed kiln and the top-down placement structure replace a production line of a traditional sintering technology kiln, the occupied area is greatly reduced, heat dissipation of the working environment is facilitated, energy consumption and loss are lower, the machining time is shortened, and the working efficiency is improved; in the dynamic mixing process of the battery powder (lithium iron phosphate) raw materials, impurities in all the materials are sintered and evaporated, waste gas is discharged, the processed battery powder (lithium iron phosphate) contains fewer impurities and is higher in purity, the rotary tank replaces the labor cost of a sagger of a traditional technical kiln, and the production cost is lower.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery powder processing equipment technical field, concretely relates to a horizontal mixing kiln. BACKGROUND

[0002] The existing battery powder (lithium iron phosphate) mostly passes through kiln heating evaporation impurity, exhaust gas, puts the battery powder (lithium iron phosphate) raw material into the sagger sealed, passes through whole kiln production line again, finally obtains the battery powder (lithium iron phosphate), and there is following shortcoming: 1, the kiln production line is longer, makes the floor space larger, and the processing time is longer, and the energy consumption is big;2, the battery powder raw material is heated in the closed sagger, leads to uneven heating, and the impurity, exhaust gas is not completely removed in the heating process, and the battery powder after processing contains many impurities, and the battery powder purity is not high enough, resulting in the poor battery powder storage quality;3, the sagger is heated for a long time, and its service life is limited, and the sagger needs to be replaced in about three months, which improves the production cost. SUMMARY

[0003] In view of the deficiencies of the background art, the utility model wants to solve the technical problem to provide a horizontal mixing kiln with smaller floor space, low energy consumption, high production capacity and lower production cost.

[0004] Therefore, the utility model is adopted as follows Technical scheme to realize:

[0005] A horizontal mixing kiln, characterized by: comprising a group of heating devices and a group of cooling devices arranged in a horizontal manner from top to bottom, the heating devices and the cooling devices are both equipped with supports, the supports are arranged in a stacked manner, the heating devices and the cooling devices are both provided with rotating pots movable on the supports, the rotating pots are provided with mixing structures, one end of the rotating pots is provided with a feeding assembly, and the other end of the rotating pots is provided with a discharging assembly and an exhaust pipe.

[0006] Further, the heating device comprises a medium-frequency induction heating structure, the medium-frequency induction heating structure comprises a hollow copper pipe surrounding the outer circle of the rotating pot, a cooling liquid in the hollow copper pipe, and a power supply connected with the hollow copper pipe.

[0007] Further, the cooling device comprises a water cooling box body wrapped around the rotating pot, the water cooling box body is provided with a water inlet pipe at the upper end, a water collecting basin at the lower end, and a water outlet pipe, the water inlet pipe and the water outlet pipe are connected with a cold water machine, the lower end of the water inlet pipe is provided with a horizontal water pipe located in the water cooling box body, and the horizontal water pipe is provided with a plurality of spray heads facing the rotating pot;The water cooling box body is provided with a cold air inlet pipe on the left side of the upper end and a hot air outlet pipe on the right side.

[0008] Further, the rotating tank has an inlet bevel on one side and an outlet bevel on the other side, the inlet bevel is connected with the inlet assembly, the outlet bevel is connected with the outlet assembly, the inlet assembly comprises an inlet ring and an inlet flange fixedly connected, the outlet assembly comprises an outlet ring and an outlet flange fixedly connected, the inlet flange and the outlet flange are fixedly connected with the support, the inlet ring is provided with an inlet pipe, the outlet ring is provided with an outlet hopper, the inlet pipe is inclined upward, the outlet hopper is inclined downward, and the outlet hopper of the heating device is communicated with the inlet pipe of the cooling device through a connecting pipe.

[0009] Further, a plurality of bevel sprockets are sleeved on the inlet bevel, a driving motor is arranged on the support, a motor sprocket aligned with the bevel sprocket is arranged on the rotating shaft of the driving motor, the motor sprocket and the bevel sprocket are driven by a chain, the inlet bevel and the outlet bevel are both provided with a circular ring, a plurality of supporting wheels capable of abutting against the circular ring are arranged on the support, a thin-wall bearing and a plurality of graphite packing sealing assemblies are arranged between the inlet ring and the inlet bevel and between the outlet ring and the outlet bevel, the inlet ring and the outlet ring are provided with oil channels communicated with the corresponding graphite packing sealing assemblies, and the oil channel inlet is provided with an oil injection nozzle.

[0010] Further, a plurality of first grooves are arranged on the inner ring of the inlet ring and the outlet ring, a plurality of second grooves are arranged on the inlet bevel and the outlet bevel and are misaligned with the first grooves, the inlet ring and the outlet ring are provided with air channels communicated with the outermost first grooves, and the air channel inlet is provided with an air injection nozzle.

[0011] Further, the mixing structure comprises first and second spiral blades with opposite spiral directions, the outer ring of the first spiral blade is welded and fixed to the inner wall of the rotating tank, the outer diameter of the second spiral blade is smaller than the inner diameter of the first spiral blade, the outer ring of the second spiral blade and the inner ring of the first spiral blade are connected through a plurality of connecting rods, the outlet bevel has an outlet port, a plurality of guide pieces are arranged on the inner wall of the outlet bevel and extend from the right end of the outlet bevel to the position of the outlet port, the guide pieces are arc-shaped as a whole, the included angle between the guide pieces and the inner wall of the outlet bevel is an acute angle, the guide pieces and the outlet bevel form a feeding groove, the inner wall of the outlet flange is provided with a transition ring, the middle of the transition ring is raised inward to form an angle, one side of the transition ring is smoothly connected with the inner wall of the outlet bevel, and the other side is smoothly connected with the inner wall of the outlet hopper, an isolation frame is arranged on the outlet hopper, a cylinder is arranged on the outer side end of the isolation frame, the driving rod of the cylinder is inserted into the outlet hopper, and the other end of the driving rod is provided with an outlet tongue capable of abutting against the transition ring.

[0012] Further, the exhaust pipe is communicated with the discharge ring, the temperature sensor is arranged on the feeding ring and inserted into the feeding inclined cone, the differential pressure sensor is inserted on the feeding pipe, the water blocking ring is arranged at the left and right ends of the water cooling box body, the high-temperature-resistant sealing gasket is arranged between the water blocking ring and the water cooling box body and abuts against the feeding inclined cone and the discharge inclined cone, and the outer ring of the rotating tank of the heating device is provided with the heat insulation material layer.

[0013] After the above technical scheme is adopted, the heating device heats the battery powder (lithium iron phosphate) raw material, evaporates and removes the impurity water in the sintered battery powder (lithium iron phosphate) through the exhaust pipe, then the discharge assembly discharges the impurity-removed battery powder (lithium iron phosphate) to the cooling device, the cooling device cools the battery powder (lithium iron phosphate) and discharges the battery powder (lithium iron phosphate) through the discharge assembly, and the battery powder (lithium iron phosphate) product is obtained. The horizontal mixing kiln structure placed from top to bottom replaces the production line of the traditional sintering technology kiln, the occupied area is greatly reduced, the heat dissipation of the working environment is facilitated, the energy consumption and loss are lower, the processing time is shortened, and the working efficiency is improved. The battery powder (lithium iron phosphate) raw material is mixed in the rotating tank, so that the sintering of the battery powder (lithium iron phosphate) raw material is more uniform, the impurities in all materials are sintered and evaporated in the dynamic mixing process, the impurities in the processed battery powder (lithium iron phosphate) are less, the purity is higher, and the battery powder (lithium iron phosphate) storage quality is better. Meanwhile, the rotating tank replaces the traditional technology kiln, so that the production cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model discloses the following drawings:

[0015] Figure 1 It is structure schematic drawing of the utility model;

[0016] Figure 2 It is internal structure schematic drawing of heating device in the utility model;

[0017] Figure 3 It is left view structure schematic drawing of heating device in the utility model;

[0018] Figure 4 It is internal structure schematic drawing of cooling device in the utility model;

[0019] Figure 5 It is internal structure schematic drawing of first recess, second recess, air passage and the structure in the utility model;

[0020] Figure 6 It is internal structure schematic drawing of graphite packing seal assembly, oil passage and the structure in the utility model.

[0021] 1, cooling device; 2, support; 3, rotating tank; 4, exhaust pipe; 5, heating device; 6, intermediate frequency induction heating structure; 7, hollow copper pipe; 8, cooling liquid; 9, water cooling box; 10, water inlet pipe; 11, water collecting cup; 12, water outlet pipe; 13, transverse water pipe; 14, spray head; 16, cold air inlet pipe; 17, hot air outlet pipe; 18, feeding inclined cone; 19, discharging inclined cone; 20, feeding ring; 21, feeding flange; 22, discharging ring; 23, discharging flange; 24, feeding pipe; 25, discharge hopper; 26, inclined cone sprocket; 27, driving motor; 28, motor sprocket; 30, circular ring; 31, supporting wheel; 32, thin wall bearing; 33, graphite packing seal assembly; 37, first spiral blade; 38, second spiral blade; 39, connecting rod; 40, guide vane; 41, temperature sensor; 43, differential pressure sensor; 44, water baffle ring; 45, high temperature resistant sealing gasket; 46, heat insulation material layer; 47, oil channel; 48, oil injection nozzle; 49, hopper; 50, connecting pipe; 51, discharge port; 52, feeding groove; 53, transition ring; 54, isolation frame; 55, air cylinder; 56, driving rod; 57, discharge tongue; 58, first groove; 59, second groove; 60, air channel; 61, air injection nozzle. DETAILED DESCRIPTION

[0022] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0023] With reference to the above shown in the drawings, the utility model provides a kind of horizontal mixing kiln, it includes from top to bottom in turn intercommunication horizontally arranged heating device 5 and a group of cooling device 1, heating device 5 and cooling device 1 are equipped with support 2, support 2 is arranged in upper and lower layers, heating device 5 and cooling device 1 all have the rotating tank 3 that can be active on support 2, the rotating tank 3 is equipped with mixing structure in, and the rotating tank 3 one end is equipped with feeding assembly, the rotating tank 3 other end is equipped with discharge assembly, exhaust pipe 4, the heating device 5 includes intermediate frequency induction heating structure 6, intermediate frequency induction heating structure 6 includes hollow copper pipe 7 around the outer ring of rotating tank 3, cooling liquid 8 in hollow copper pipe 7, with the power supply connected with hollow copper pipe 7, the cooling device 1 includes the water cooling box 9 of wrapping rotating tank 3 outside, water cooling box 9 upper end is equipped with water inlet pipe 10, lower end is equipped with water-collecting basin 11, water outlet pipe 12, water inlet pipe 10 and water outlet pipe 12 are connected with water cooler, water inlet pipe 10 lower end is equipped with the transverse water pipe 13 in water cooling box 9, the transverse water pipe 13 is equipped with several spray heads 14 towards rotating tank 3;The water cooling box 9 upper end left side is equipped with cold air inlet pipe 16, right side is equipped with hot air outlet pipe 17, the rotating tank 3 one side has feeding inclined cone 18, other side has discharge inclined cone 19, feeding inclined cone 18 is connected with feeding assembly, discharge inclined cone 19 is connected with discharge assembly, feeding assembly includes fixedly connected feeding ring 20 and feeding flange 21, discharge assembly includes fixedly connected discharge ring 22 and discharge flange 23, the feeding flange 21 and discharge flange 23 are fixedly connected with support 2, the feeding ring 20 is equipped with feeding pipe 24, the discharge ring 22 is equipped with discharge hopper 25, the feeding pipe 24 is inclined upwards, the discharge hopper 25 is inclined downwards, the discharge hopper 25 of heating device 5 is connected with the feeding pipe 24 of cooling device 1 by connecting pipe 50, the feeding inclined cone 18 is equipped with multiple inclined cone sprocket 26, the support 2 is equipped with driving motor 27, the rotating shaft of driving motor 27 is equipped with motor sprocket 28 aligned with inclined cone sprocket 26, motor sprocket 28 and inclined cone sprocket 26 are driven by chain, the feeding inclined cone 18 and discharge inclined cone 19 are all equipped with circular ring 30, the support 2 is equipped with multiple supporting wheel 31 that can be placed on circular ring 30, the feeding ring 20 and feeding inclined cone 18 between, discharge ring 22 and discharge inclined cone 19 between are all equipped with thin-wall bearing 32 and multiple graphite packing seal assembly 33, the feeding ring 20, discharge ring 22 are equipped with oil channel 47 with corresponding graphite packing seal assembly 33, the oil channel 47 entrance has oil injection nozzle 48, the inner ring of feeding ring 20 and discharge ring 22 is all equipped with multiple first grooves 58, the feeding inclined cone 18 and discharge inclined cone 19 are all equipped with multiple second grooves 59 with first groove 58 misalignment communication, the feeding ring 20, discharge ring 22 are equipped with air channel 60 with the outermost first groove 58 communication, the air channel 60 entrance has injection, the mixing structure includes first helical vane 37 and second helical vane 38 of opposite spiral direction,The outer circle of the first helical blade 37 is welded and fixed to the inner wall of the rotating tank 3. The outer diameter of the second helical blade 38 is smaller than the inner diameter of the first helical blade 37. The outer circle of the second helical blade 38 and the inner circle of the first helical blade 37 are connected through a plurality of connecting rods 39. The discharge inclined cone 19 has a discharge port 51. A plurality of guide vanes 40 are arranged on the inner wall of the discharge inclined cone 19. The guide vanes 40 extend from the right end of the discharge inclined cone 19 to the position of the discharge port 51. The guide vanes 40 are arc-shaped as a whole. The included angle between the guide vanes 40 and the inner wall of the discharge inclined cone 19 is an acute angle. The guide vanes 40 and the discharge inclined cone 19 form a feeding groove 52. The inner wall of the discharge flange 23 is provided with a transition ring 53. The transition ring 53 is raised in the middle to form an angle. One side of the transition ring 53 is smoothly connected with the inner wall of the discharge inclined cone 19, and the other side is smoothly connected with the inner wall of the discharge hopper 25. An isolation frame 54 is arranged on the discharge hopper 25. A cylinder 55 is arranged on the outer side end of the isolation frame 54. The driving rod 56 of the cylinder 55 is inserted into the discharge hopper 25. The other end of the driving rod 56 is provided with a discharge tongue 57 which can abut on the transition ring 53. The exhaust pipe 4 is communicated with the discharge ring 22. A temperature sensor 41 is inserted into the feeding inclined cone 18. A differential pressure sensor 43 is inserted into the feeding pipe 24. The water cooling box 9 is provided with a water blocking ring 44 at both ends. The high temperature resistant sealing pad 45 is arranged between the water blocking ring 44 and the water cooling box 9, and abuts on the feeding inclined cone 18 and the discharge inclined cone 19. The outer circle of the rotating tank 3 of the heating device 5 is provided with a layer of heat insulation material 46.

[0024] In this embodiment, the heating device 5 heats the battery powder (lithium iron phosphate) raw material, evaporates the impurities in it after sintering and exhausts the waste gas through the exhaust pipe 4, and then the discharge assembly discharges the battery powder (lithium iron phosphate) after impurity removal to the cooling device 1, which cools the battery powder (lithium iron phosphate) and discharges it through the discharge assembly to obtain the battery powder (lithium iron phosphate) product. This self-top-to-bottom placement horizontal mixing kiln structure replaces the traditional sintering technology kiln production line, greatly reducing the floor area, facilitating heat dissipation of the working environment, reducing energy consumption and loss, shortening processing time and improving work efficiency; the battery powder (lithium iron phosphate) raw material is mixed in the rotating tank 3, which not only makes the sintering of the battery powder (lithium iron phosphate) raw material more uniform, but also makes the impurities in all materials sintered and evaporated and the exhaust gas discharged in the dynamic mixing process, so that the processed battery powder (lithium iron phosphate) contains less impurities and has higher purity, thereby making the battery powder (lithium iron phosphate) have better storage quality; at the same time, the rotating tank 3 replaces the traditional technology kiln's sagger, reducing the production cost; the oil injection nozzle 48 regularly injects lubricating oil into the oil channel 47, thereby keeping the graphite packing assembly lubricated and improving the service life; the thin-wall bearing 32 is provided between the feeding ring 20 and the feeding inclined cone 18 and between the discharging ring 22 and the discharging inclined cone 19, so that the equipment injects gas into the gas channel 60 through the gas injection nozzle 61 when working, and the gas passes through the first groove 58, the second groove 59, the first groove 58 and the second groove 59 one by one, and finally enters the rotating tank 3 through the gap. The first groove 58 and the second groove 59 are arranged in multiple staggered communication to form a labyrinth air seal, which prevents materials from entering the gap during equipment operation, thereby affecting the sealing between the feeding ring 20 and the feeding inclined cone 18 and between the discharging ring 22 and the discharging inclined cone 19; the discharging inclined cone 19 does not perform discharging operation when rotating forward, and the material will enter the feeding groove 52 to move to the discharging port 51 position for discharging operation when the discharging inclined cone 19 reverses. Since the guide vane 40 is arc-shaped as a whole, the feeding groove 52 can hold more material, increasing the discharging speed, and the material will slide to the bottom of the feeding groove 52 (arc-shaped) due to gravity. With the continuous reverse rotation of the discharging inclined cone 19, the bottom of the feeding groove 52 (arc-shaped) is always changing, so that the material always has a tendency to slide to the discharging port 51, further accelerating the discharging speed; the transition ring 53 in the inner wall of the discharging flange 23 is raised in the middle to form an angle, one side of the transition ring 53 smoothly transitions with the inner wall of the discharging inclined cone 19, and the other side smoothly transitions with the inner wall of the discharging hopper 25, effectively preventing material from depositing on the inner wall of the discharging flange 23, avoiding affecting the sealing, and making the discharging more complete; the driving cylinder 55 can drive the discharging tongue 57 to move left and right, and the discharging tongue 57 moves to the right during material mixing to complete the sealing of the discharging port 51, and the discharging tongue 57 moves to the left during discharging to separate from the transition ring 53, so the structure is stable and reliable.The isolation frame 54 is arranged to separate the air cylinder 55 from the rotary tank 3, so as to avoid long-time operation of the air cylinder 55 in a high-temperature environment, thereby prolonging the service life of the air cylinder 55.

[0025] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the present application, and any equivalent embodiments with equivalent changes and modifications are still within the scope of the present application.

Claims

1. A fluidized bed kiln characterized by: The application relates to a horizontal heating and cooling device, which comprises a group of heating devices and a group of cooling devices arranged in sequence from top to bottom, wherein the heating devices and the cooling devices are provided with supports arranged in layers, the heating devices and the cooling devices are provided with rotating cans capable of moving on the supports, the rotating cans are provided with mixing structures, one end of the rotating cans is provided with feeding assemblies, and the other end of the rotating cans is provided with discharging assemblies and exhaust pipes.

2. A tilt-up kiln as defined in claim 1, wherein: The heating device comprises a medium-frequency induction heating structure, which comprises a hollow copper pipe surrounding the outer ring of the rotating can, cooling liquid in the hollow copper pipe and a power supply connected with the hollow copper pipe.

3. A tilt-up kiln as defined in claim 2, wherein: The cooling device comprises a water cooling box body wrapping the rotating can, the water cooling box body is provided with a water inlet pipe at the upper end, a water collecting basin at the lower end and a water outlet pipe, the water inlet pipe and the water outlet pipe are connected with a cold water machine, the lower end of the water inlet pipe is provided with a transverse water pipe located in the water cooling box body, the transverse water pipe is provided with a plurality of spray heads facing the rotating can, the left side of the upper end of the water cooling box body is connected with a cold air inlet pipe, and the right side of the upper end of the water cooling box body is connected with a hot air outlet pipe.

4. A tilt-up kiln as defined in claim 3, wherein: One side of the rotating can is provided with a feeding inclined cone, and the other side is provided with a discharging inclined cone, the feeding inclined cone is connected with the feeding assembly, the discharging inclined cone is connected with the discharging assembly, the feeding assembly comprises a feeding ring and a feeding flange fixedly connected, the discharging assembly comprises a discharging ring and a discharging flange fixedly connected, the feeding flange and the discharging flange are fixedly connected with the support, the feeding ring is provided with a feeding pipe, the discharging ring is provided with a discharging hopper, the feeding pipe is inclined upwards, the discharging hopper is inclined downwards, and the discharging hopper of the heating device is connected with the feeding pipe of the cooling device through a connecting pipe.

5. A tilt-up kiln as defined in claim 4, wherein: A plurality of inclined cone chain wheels are sleeved on the feeding inclined cone, a driving motor is arranged on the support, a motor chain wheel aligned with the inclined cone chain wheels is arranged on the rotating shaft of the driving motor, the motor chain wheel and the inclined cone chain wheel are connected and driven through a chain, the feeding inclined cone and the discharging inclined cone are both provided with a circular ring, a plurality of supporting wheels capable of abutting on the circular ring are arranged on the support, thin-wall bearings and a plurality of graphite packing sealing assemblies are arranged between the feeding ring and the feeding inclined cone and between the discharging ring and the discharging inclined cone, the feeding ring and the discharging ring are provided with oil channels communicated with the corresponding graphite packing sealing assemblies, and the oil channels are provided with oil injection nozzles at the entrances.

6. A tilt-up kiln as defined in claim 5, wherein: The inner ring of the feeding ring and the discharging ring is provided with a plurality of first grooves, the feeding inclined cone and the discharging inclined cone are provided with a plurality of second grooves communicated with the first grooves in a staggered mode, the feeding ring and the discharging ring are provided with air channels communicated with the first grooves of the outermost circle, and the air channels are provided with air injection nozzles at the entrances.

7. A fluidized bed kiln according to any one of claims 1 to 6, characterized in that: The mixing structure comprises first and second spiral blades with opposite spiral directions, the outer circle of the first spiral blade is welded and fixed to the inner wall of the rotating tank, the outer diameter of the second spiral blade is smaller than the inner diameter of the first spiral blade, and the outer circle of the second spiral blade and the inner circle of the first spiral blade are connected through a plurality of connecting rods, the discharge conical taper is provided with a discharge port, the inner wall of the discharge conical taper is provided with a plurality of guide fins, the guide fins extend from the right end of the discharge conical taper to the position of the discharge port, the guide fins are arc-shaped as a whole, and the included angle between the guide fins and the inner wall of the discharge conical taper is an acute angle, the guide fins and the discharge conical taper form a feeding groove, the inner wall of the discharge flange is provided with a transition ring, the middle of the transition ring is raised inward to form an angle, one side of the transition ring is smoothly connected with the inner wall of the discharge conical taper, and the other side is smoothly connected with the inner wall of the discharge hopper, the discharge hopper is provided with an isolation frame, the outer side end of the isolation frame is provided with a gas cylinder, the driving rod of the gas cylinder is inserted into the discharge hopper, and the other end of the driving rod is provided with a discharge tongue which can abut against the transition ring.

8. A tilt-up kiln as claimed in claim 4, 5 or 6, wherein: The exhaust pipe is communicated with the discharge ring, the temperature sensor is arranged on the feeding ring and inserted into the feeding conical taper, the differential pressure sensor is arranged on the feeding pipe, the water cooling box is provided with water blocking rings at the left and right ends, high-temperature-resistant sealing pads are arranged between the water blocking rings and the water cooling box and abut against the feeding conical taper and the discharge conical taper, and the rotating tank of the heating device is provided with a layer of heat insulation material.

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