CN116808906B - Pipeline continuous powder mixing device for preparing anode material - Google Patents
Pipeline continuous powder mixing device for preparing anode materialInfo
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- CN116808906B CN116808906B CN202310847049.XA CN202310847049A CN116808906B CN 116808906 B CN116808906 B CN 116808906B CN 202310847049 A CN202310847049 A CN 202310847049A CN 116808906 B CN116808906 B CN 116808906B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
本发明公开了一种正极材料制备用管道连续式粉体混合装置，包括风机、料仓、除尘器、引风机、收料筒、混合装置和搅拌装置，混合装置包括连接管道和至少两个混合室，连接管道连接混合室，搅拌装置包括搅拌叶片杆、齿轮传动杆和电机，搅拌叶片杆设置有两个，两个叶片搅拌杆分别连接齿轮传动杆的两端，两个搅拌叶片杆分别插入一个混合室中，齿轮传动杆和电机的电机轴上分别设有锥齿轮，且二者的锥齿轮呈90°配合，连接管道的入口连接风机和料仓，出口连接除尘器，除尘器的顶部出口连接引风机，底部连接收料筒。与现有的高混机混合技术以及管道静态混合技术相比，本发明能增加正极材料间的对撞强度与混合效率。
This invention discloses a continuous pipeline powder mixing device for preparing cathode materials, comprising a fan, a silo, a dust collector, an induced draft fan, a receiving cylinder, a mixing device, and a stirring device. The mixing device includes a connecting pipeline and at least two mixing chambers. The connecting pipeline connects to the mixing chambers. The stirring device includes two stirring blades, a gear transmission rod, and a motor. Two stirring blades are provided, each connected to one end of the gear transmission rod. Each stirring blade is inserted into a mixing chamber. The gear transmission rod and the motor shaft are each equipped with a bevel gear, which are engaged at 90°. The inlet of the connecting pipeline connects to the fan and the silo, and the outlet connects to the dust collector. The top outlet of the dust collector connects to the induced draft fan, and the bottom connects to the receiving cylinder. Compared with existing high-speed mixer mixing technology and pipeline static mixing technology, this invention can increase the collision intensity and mixing efficiency between cathode materials.
Description
Technical Field
The invention relates to the technical field of powder mixing, in particular to a pipeline continuous powder mixing device for preparing a positive electrode material.
Background
The mixing of the positive electrode materials is an important guarantee for effectively preparing the positive electrode materials, and most of the mixing methods for the positive electrode materials at present adopt single mechanical stirring elements for mixing, and the mechanical stirring elements mainly utilize radial flow, axial flow and tangential flow effects formed by rotating parts for circulation mixing. The single mechanical stirring and mixing has the problems of small inter-particle gaps, easy aggregation, poor dispersibility, serious heating caused by long-time stirring and mixing, and the like, and cannot solve the problems of influencing the preparation quality of the anode material. Meanwhile, mechanical stirring type mixing is usually carried out in batches, continuous operation cannot be carried out, precise control on material concentration and speed cannot be realized, and the mixing requirement of the anode material under complex conditions cannot be met.
The static mixer of the pipeline has good continuous mixing performance, but the static mixer of the pipeline has the advantages of complex internal structure, more blades, inconvenient installation, easy large pressure loss caused by too many blades, easy material blockage and the like, and low comprehensive benefit.
In view of this, a pipeline continuous powder mixing device for preparing a positive electrode material is specifically proposed.
Disclosure of Invention
The invention aims to provide a pipeline continuous powder mixing device for preparing positive electrode materials, which can increase the collision strength and mixing efficiency between the positive electrode materials.
The technical aim of the invention is realized by the following technical scheme:
The utility model provides a pipeline continuous type powder mixing arrangement for positive pole material preparation, includes fan, feed bin, dust remover, draught fan, receipts feed cylinder, mixing arrangement and agitating unit, mixing arrangement includes connecting line and two at least mixing chambers, connecting line connects the mixing chamber, agitating unit includes stirring vane pole, gear drive pole and motor, stirring vane pole is provided with two, two the blade stirring pole is connected respectively the both ends of gear drive pole, two stirring vane pole inserts respectively one in the mixing chamber, gear drive pole with be equipped with the bevel gear on the motor shaft of motor respectively, and both bevel gear is 90 cooperation, connecting line's entry linkage the fan with the feed bin, exit linkage the dust remover's top exit linkage draught fan, the bottom is connected receive the feed cylinder.
In a preferred embodiment, the stirring device further comprises an airflow sealing end cover, an airflow sealing chamber and a bearing, wherein the airflow sealing end cover, the airflow sealing chamber and the bearing are arranged corresponding to the stirring blade rod, the airflow sealing chamber is arranged on the stirring blade rod, a small hole is formed in the bottom of the airflow sealing chamber, the airflow sealing end cover is arranged at the top of the airflow sealing chamber, and the bearing is arranged in the airflow sealing chamber and is used for being matched with the stirring blade rod.
In a preferred embodiment, the stirring device further comprises a large sealing ring and a small sealing ring, wherein the large sealing ring and the small sealing ring are respectively arranged at the outer ring and the inner ring of the bearing.
In a preferred embodiment, the blades provided on the stirring blade bar are provided with 2-10 layers, each layer being provided with 2-5 blades.
In a preferred embodiment, the connecting pipeline comprises a first feeding pipe, a second feeding pipe, a first shunt pipe, a second shunt pipe and a blanking pipe, wherein the mixing chamber comprises a first-stage mixing chamber, a second-stage mixing chamber, a third-stage mixing chamber, a first nozzle, a second nozzle and a third nozzle, the first shunt pipe, the second shunt pipe, the first nozzle, the second nozzle and the third nozzle are respectively provided with two first nozzles, the outlets of the first feeding pipe and the second feeding pipe are respectively connected with two first nozzles, the two first nozzles are respectively connected with the first-stage mixing chamber, the inlets of the two first shunt pipes are respectively connected with two second nozzles, the two second nozzles are respectively connected with the second-stage mixing chamber, the inlets of the two second shunt pipes are connected with the second-stage mixing chamber, the outlets of the two third nozzles are respectively connected with the third nozzle, the outlets of the third stage feeding pipe are respectively connected with the inlets of the two third nozzles, and the two stirring rods are respectively inserted into the second-stage mixing chamber and the second-stage mixing chamber.
In a preferred embodiment, a first blade is respectively arranged in the first feeding pipe and the second feeding pipe, a second blade is arranged in the first shunt pipe, the first blade and the second blade are arranged in a spiral shape, the rotation directions of the first blade in the first feeding pipe and the rotation directions of the second blade in the second feeding pipe are the same, and the rotation directions of the second blade in the two first shunt pipes are the same.
In a preferred embodiment, the first blade and the second blade have a helical diameter in the range of 20-200mm, a pitch in the range of 20-100mm, and a number of turns of 0.5.
In a preferred embodiment, the first feeding pipe and the second feeding pipe are circular pipes, the pipe diameter ranges from 20mm to 200mm, the first feeding pipe and the second feeding pipe comprise straight pipes, bent pipes, straight pipes, bent pipes and straight pipes which are connected in sequence, the length of the straight pipes ranges from 40 mm to 500mm, and the bending angle of the bent pipes ranges from 30 degrees to 160 degrees.
In a preferred embodiment, the first, second and third nozzles are arranged as progressively converging ducts with a converging angle in the range of 10 DEG to 60 DEG, an inlet diameter in the range of 20 to 200mm and an outlet diameter in the range of 5 to 30mm.
In a preferred embodiment, the first stage mixing chamber and the second stage mixing chamber are arranged in a hollow sphere configuration with a diameter in the range of 40-300mm, and the third mixing chamber is arranged in a cylindrical configuration with cone angles at the top and bottom, with a cone angle in the range of 10-45 ° and a diameter in the range of 40-300mm.
Compared with the prior art, the pipeline continuous powder mixing device for preparing the positive electrode material has the advantages that 1, gas is adopted to drive raw materials of the positive electrode material to collide and mix in a pipeline, collision strength and mixing efficiency among raw material particles are improved, 2, blades are adopted to disperse and mix, the energy consumption of a system is reduced while the mixing uniformity requirement is met, 3, main components are made of non-metal materials, and pollution of metal impurities to the raw materials of the positive electrode material during severe collision is avoided.
Drawings
Fig. 1 is a schematic diagram of a mixing device structure of a pipeline continuous powder mixing device for preparing a positive electrode material.
Fig. 2 is a front full sectional view of a mixing device of a pipe-line continuous powder mixing device for preparing a positive electrode material according to the present invention.
Fig. 3 is a side full sectional view of a mixing device of a pipe-line continuous powder mixing device for preparing a positive electrode material according to the present invention.
Fig. 4 is a schematic structural view of a stirring device of a pipeline continuous powder mixing device for preparing a positive electrode material.
Fig. 5 is a cross-sectional view of a stirring device of a pipe-line continuous powder mixing device for preparing a positive electrode material according to the present invention.
Fig. 6 is a schematic structural view of a first blade and a second blade of a mixing device of a pipeline continuous powder mixing device for preparing a positive electrode material.
Fig. 7 is a schematic structural diagram of a pipeline continuous powder mixing device for preparing a positive electrode material.
In the figure
1. The device comprises a first feeding pipe, a second feeding pipe, a first-stage mixing chamber 3, a first shunt pipe 4, a second-stage mixing chamber 5, a second shunt pipe 6, a third-stage mixing chamber 7, a blanking pipe 8, a first blade 9, a first nozzle 10, a first 11, a second blade 12, a second nozzle 13, a third nozzle 14, a stirring device 141, a stirring blade rod 142, an airflow sealing end cover 143, an airflow sealing chamber 144, a motor 145, a gear transmission rod 146, a large sealing ring 147, a small sealing ring 148, a bearing 15, a mixing device 16, a fan 17, a bin 18, a dust remover 19, an induced draft fan 20 and a receiving cylinder.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
The utility model provides a pipeline continuous type powder mixing arrangement for positive pole material preparation, includes fan, feed bin, dust remover, draught fan, receipts feed cylinder, mixing arrangement and agitating unit, mixing arrangement includes connecting line and two at least mixing chambers, connecting line connects the mixing chamber, agitating unit includes stirring vane pole, gear drive pole and motor, stirring vane pole is provided with two, two the blade stirring pole is connected respectively the both ends of gear drive pole, two stirring vane pole inserts respectively one in the mixing chamber, gear drive pole with be equipped with the bevel gear on the motor shaft of motor respectively, and both bevel gear is 90 cooperation, connecting line's entry linkage the fan with the feed bin, exit linkage the dust remover's top exit linkage draught fan, the bottom is connected receive the feed cylinder.
The pipeline continuous powder mixing device for preparing the positive electrode material has the advantages that 1, gas is adopted to drive raw materials of the positive electrode material to collide and mix in a pipeline, collision strength and mixing efficiency among raw material particles are improved, 2, blades are adopted to disperse and mix, energy consumption of a system is reduced while the mixing uniformity requirement is met, 3, main components are made of non-metal materials, and pollution of metal impurities to the raw materials of the positive electrode material during severe collision is avoided.
Further, the stirring device further comprises an airflow sealing end cover, an airflow sealing chamber and a bearing, wherein the airflow sealing end cover, the airflow sealing chamber and the bearing are arranged corresponding to the stirring vane rod, the airflow sealing chamber is arranged on the stirring vane rod, a small hole is formed in the bottom of the airflow sealing chamber, the airflow sealing end cover is arranged at the top of the airflow sealing chamber, and the bearing is arranged in the airflow sealing chamber and is used for being matched with the stirring vane rod.
Further, the stirring device further comprises a large sealing ring and a small sealing ring, and the large sealing ring and the small sealing ring are respectively arranged at the positions of the outer ring and the inner ring of the bearing.
Further, the blades arranged on the stirring blade rod are provided with 2-10 layers, and each layer is provided with 2-5 blades.
Further, connecting tube includes first feed pipe, second feed pipe, first shunt tube, second shunt tube and blanking pipe, the mixing chamber includes first level mixing chamber, second level mixing chamber, third level mixing chamber, first nozzle, second nozzle and third nozzle, first shunt tube, second shunt tube, first nozzle, second nozzle and third nozzle are equipped with two respectively, first feed pipe with two first nozzles are connected respectively to the export of second feed pipe, two first nozzles are connected respectively first level mixing chamber, two first shunt tube's entry linkage first level mixing chamber, two second nozzle are connected respectively to the export, two second nozzle is connected respectively second level mixing chamber, two second shunt tube's entry linkage second level mixing chamber, two third nozzle connect first mixing chamber, three level's exit linkage first nozzle, two the entry of blanking pipe the impeller inserts respectively in first level mixing chamber and the second level mixing chamber.
Further, a first blade is arranged in the first feeding pipe and the second feeding pipe respectively, a second blade is arranged in the first shunt pipe, the first blade and the second blade are arranged in a spiral shape, the rotation directions of the first blade in the first feeding pipe and the rotation directions of the second blade in the second feeding pipe are the same, and the rotation directions of the second blade in the two first shunt pipes are the same.
Further, the spiral diameter range of the first blade and the second blade is 20-200mm, the pitch range is 20-100mm, the torsion circle number is 0.5, the gas-solid dispersion of the precursor powder material and the lithium element powder material is realized, and the shearing mixing of the precursor powder material and the lithium element powder material is realized.
Further, the first feeding pipe and the second feeding pipe are arranged to be circular pipes, the pipe diameter range is 20-200 mm, the first feeding pipe and the second feeding pipe comprise straight pipes, bent pipes, straight pipes and straight pipes which are sequentially connected, the length range of the straight pipes is 40-500mm, the bending angle range of the bent pipes is 30-160 degrees, gas-solid feeding is realized through the action of air flow, the speed range of the air flow is 2-20m/s, and the solid-gas ratio is 2-20.
Further, the first nozzle, the second nozzle and the third nozzle are arranged as gradually shrinking pipes, the shrinking angle ranges from 10 degrees to 60 degrees, the inlet diameter ranges from 20 mm to 200mm, and the outlet diameter ranges from 5 mm to 30mm.
Further, the first-stage mixing chamber and the second-stage mixing chamber are arranged to be of hollow sphere structures, the diameter range is set to be 40-300mm, strong gas-solid turbulence collision is achieved, four interfaces are uniformly arranged on the front side, the rear side, the left side and the right side, the diameter range of each interface is 20-200 mm, two inlets are used for connecting nozzle outlets, two outlets are used for connecting inlets of a shunt pipe, the third mixing chamber is set to be of a cylindrical structure with cone angles at the top and the bottom, the cone angle range is set to be 10-45 degrees, the diameter range is set to be 40-300mm, and gas-solid diffusion collision is achieved. Two inlets are arranged on two sides of the third-stage mixing chamber, the diameter range is 5-30 mm, the outlet is used for connecting with a nozzle, an outlet is arranged on the bottom, the diameter range is 30-250 mm, and the outlet is used for connecting with a blanking pipe.
The first shunt tube and the second shunt tube are circular pipelines with the diameter range of 20-200 mm and are formed by combining a plurality of sections of straight pipes and bent pipes, the connecting sequence is sequentially a straight pipe, a bent pipe, a straight pipe, a bent pipe and a straight pipe, the length range of the straight pipe is 40-500 mm, the bending angle range of the bent pipe is 30-160 degrees, and the shunt tube is used for shunt conveying of precursor powder materials and lithium element powder materials after mixing.
The blanking pipe is a circular pipe, the diameter range is 30-250 mm, the blanking pipe is formed by combining two sections of straight pipes and one section of bent pipe, the connecting sequence is a straight pipe, a bent pipe and a straight pipe, and the angle of the bent pipe is 90 degrees. The diameter of the inlet of the blanking pipe and the diameter of the outlet blanking pipe of the third-stage mixing chamber are the largest diameter in the whole device, so that the mixed materials can be uniformly and stably blanked.
In order to further describe the pipeline continuous powder mixing device for preparing the anode material of the embodiment in detail, the following embodiments are specifically provided with reference to the accompanying drawings:
Example 1:
a pipeline continuous powder mixing device for preparing a positive electrode material comprises a first feeding pipe 1, a second feeding pipe 2, a first-stage mixing chamber 3, a first shunt pipe 4, a second-stage mixing chamber 5, a second shunt pipe 6, a third-stage mixing chamber 7, a blanking pipe 8, a first blade 9, a first nozzle 10, a second blade 11, a second nozzle 12 and a third nozzle 13. A stirring device 14. Stirring blade rod 141. The air flow seals the end cap 142. The airflow seals the chamber 143. And a motor 144. Gear lever 145. Large seal ring 146. Small seal rings 147. And a bearing 148. A mixing device 15. A blower 16. A silo 17. A dust remover 18. And an induced draft fan 19. And a take-up cylinder 20.
In this embodiment, the outlet of the fan 16 is connected with the outlet of the bin 17 and the inlet of the pipeline continuous mixing device 15, so as to realize pneumatic feeding.
The outlets of the first feeding pipe 1 and the second feeding pipe 2 of the pipeline mixing device are respectively bonded with inlets of two first nozzles 10, and a piece of static first blades 9 with the same rotation direction are respectively arranged in the positions, close to the outlets, of the first feeding pipe 1 and the second feeding pipe 2. The outlet of the first nozzle 10 is connected with the left inlet and the right inlet of the first-stage mixing chamber 3 through flanges.
The two outlets of the first-stage mixing chamber 3 are connected with the inlets of the two first shunt pipes through flanges. And a second static vane 11 with the same rotation direction is respectively arranged at the middle position inside the two first shunt tubes 4, and the outlets of the two first shunt tubes 4 are respectively bonded with the inlets of the two second nozzles 12.
The outlets of the two second nozzles 12 are connected with the two inlets of the second-stage mixing chamber 5 through flanges, and the two outlets of the second-stage mixing chamber 5 are connected with the inlets of the two second shunt tubes 6 through flanges. The outlets of the two second shunt tubes 6 are bonded with the inlets of the two third nozzles 13, and the outlets of the two third nozzles 13 are connected with the inlet of the third-stage mixing chamber 7 through flanges.
The stirring device 14 has a vertically symmetrical structure and mainly comprises a stirring blade rod 141, an airflow sealing end cover 142, an airflow sealing chamber 143, a gear transmission rod 145, a motor 144, a bearing 148, a large sealing ring 146 and a small sealing ring 147. The stirring device 14 is connected with the bottom of the first-stage mixing chamber 3 and the top of the second-stage mixing chamber 5 through flanges. The stirring vane rod 141 extends into the first stage mixing chamber 3 and the second stage mixing chamber 5, is connected with the bearing 148, the bearing 148 is installed in the airflow sealing chamber 143, and the positions of the outer ring and the inner ring of the bearing 148 are respectively fixed by a large sealing ring 146 and a small sealing ring 147, so that axial movement is prevented. An air flow sealing end cap 142 is installed at the top of the air flow sealing chamber 143. The bottom of the airflow sealing chamber 143 is provided with a small hole for airflow to enter the airflow sealing chamber 143, so that dust is prevented from entering the stirring device 14. The middle of the gear transmission rod 145 is provided with a bevel gear which is arranged at 90 degrees with the bevel gear on the motor 144, and the upper end and the lower end of the gear transmission rod 145 are connected with the stirring vane rod 141 by using threads or pin shafts, so that power transmission is realized.
The outlet of the third stage mixing chamber 7 is screwed with the inlet of the blanking pipe 8.
The outlet of the third-stage mixing chamber 7 of the mixing device 15 is connected with the inlet of the dust remover 18, so that pneumatic dust removal is realized, the top outlet of the dust remover 19 is connected with an induced draft fan, and the bottom 20 outlet is connected with a receiving cylinder.
As shown in fig. 7, the precursor powder material and the lithium element powder material fall from the two bins 17, respectively, and are fed into the first feeding pipe 1 and the second feeding pipe 2, respectively, by the air flow of the blower 16. As shown in fig. 1, the two materials are brought into contact with first vanes 9 mounted inside the first feed pipe 1 and the second feed pipe 2 by the air flow. As shown in fig. 6, since the first blades 9 are of a twisted structure, the raw materials are sheared and dispersed in the axial and radial directions, and since the first blades 9 of the first feeding pipe 1 and the second feeding pipe 2 are of the same twisted direction, only the flow directions of the raw materials are different, the two raw materials are dispersed in a spiral form, and the formed spiral can enable the two raw materials to mutually permeate, so that the mixing effect is enhanced. Then, the two raw materials enter the inlet of the first nozzle 10 in a gas-solid spiral dispersed form, and as the first nozzle 10 is of a gradually contracted pipeline structure, the gas-solid two-phase flow passing through the first nozzle 10 can generate a strong acceleration effect, so that the gas-solid two-phase flow enters the first-stage mixing chamber 3, and as the first-stage mixing chamber 3 is of a spherical structure, the materials after spiral dispersion acceleration can generate a strong turbulent flow mixing effect.
As shown in fig. 4, the motor 144 of the stirring device 14 starts to start to drive the stirring blade rod 141 to start to rotate at a high speed, and further stir the gas-solid two-phase flow fields of the first-stage mixing chamber 3 and the second-stage mixing chamber 5, so as to realize rapid and uniform mixing.
As shown in fig. 3, the materials mixed in the first stage mixing chamber 3 flow into two first flow dividing pipes 4 under the action of air flow and gravity, and the second blades 11 are also installed inside the flow dividing pipes, so that the materials entering the first flow dividing pipes 4 are sheared and converged under the action of the blades, and the mixing effect is further enhanced. The two mixed raw materials enter the second nozzle 12 again under the action of air flow and gravity, are accelerated again and enter the second-stage mixing chamber 5, and generate second-stage strong turbulent mixing in the second-stage mixing chamber 5.
As shown in fig. 2, the materials mixed in the second-stage mixing chamber 5 flow into two second flow-dividing pipes 6 under the action of air flow and gravity, then enter the third nozzle 13, are accelerated for the third time and enter the third-stage mixing chamber 7, and the mixed materials sprayed out from the third nozzle 13 can form a certain diffusion effect, so that two gas-solid jet flows are mutually embedded, and the mixing uniformity is improved. The third stage mixing chamber is not provided with a stirring device, so that segregation phenomenon after mixing is prevented. And then flows into the down pipe 8 under the influence of air flow and gravity.
At this time, under the negative pressure of the induced draft fan 18, the mixed raw materials are sucked from the blanking pipe 8 to the dust remover 19, and fall into the receiving cylinder 20 after passing through the dust remover, so as to realize the function of collecting the raw materials. And the air passing through the dust remover 18 is filtered by the dust remover 18 and then discharged into the atmosphere through the induced draft fan 19, so that continuous mixing operation is completed.
Example 2:
Unlike in example 1, the first shunt 4 and its inner second blade 11, as well as the second stage mixing chamber 5, are removed. The inlet of the second shunt pipe 6 is connected to the outlet of the first-stage mixing chamber 3, the lower half part of the stirring device 14 is connected to the inside of the third-stage mixing chamber 7 through flange connection, and the rest parts are not changed, so that the multistage combined continuous mixing function is realized. Specifically, the following is described.
As shown in fig. 1, the precursor powder material and the lithium-element powder material are respectively fed into the first feeding pipe 1 and the second feeding pipe 2 under the action of air flow, and the two materials are contacted with the first blades 9 installed inside the first feeding pipe 1 and the second feeding pipe 2 under the action of air flow. As shown in fig. 6, since the first blades 9 are of a twisted structure, the raw materials are sheared and dispersed in the axial and radial directions, and since the first blades 9 of the first feeding pipe 1 and the second feeding pipe 2 are of the same twisted direction, only the flow directions of the raw materials are different, the two raw materials are dispersed in a spiral form, and the formed spiral can enable the two raw materials to mutually permeate, so that the mixing effect is enhanced. Then, the two raw materials enter the inlet of the first nozzle 10 in a gas-solid spiral dispersed form, and as the first nozzle 10 is of a gradually contracted pipeline structure, the gas-solid two-phase flow passing through the first nozzle 10 can generate a strong acceleration effect, so that the gas-solid two-phase flow enters the first-stage mixing chamber 3, and as the first-stage mixing chamber 3 is of a spherical structure, the materials after spiral dispersion acceleration can generate a strong turbulent flow mixing effect.
As shown in fig. 4, the motor 144 of the stirring device 14 starts to start to drive the stirring blade rod 141 to start to rotate at a high speed, and further stir the gas-solid two-phase flow fields of the first-stage mixing chamber 3 and the third-stage mixing chamber 7, so as to realize rapid and uniform mixing.
As shown in fig. 2, the materials mixed in the first-stage mixing chamber 5 flow into two second flow-dividing pipes 6 under the action of air flow and gravity, then enter the third nozzle 13, are accelerated for the second time, and enter the third-stage mixing chamber 7, and the mixed materials sprayed out from the third nozzle 13 can form a certain diffusion effect, so that two gas-solid jet flows are mutually embedded, and the mixing uniformity is improved. And then flows into the down pipe 8 under the influence of air flow and gravity.
At this time, under the negative pressure of the induced draft fan 18, the mixed raw materials are sucked from the blanking pipe 8 to the dust remover 19, and fall into the receiving cylinder 20 after passing through the dust remover, so as to realize the function of collecting the raw materials. And the air passing through the dust remover 18 is filtered by the dust remover 18 and then discharged into the atmosphere through the induced draft fan 19, so that continuous mixing operation is completed.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, elements defined by the phrases "including" or "comprising" do not exclude the presence of additional elements in a process, method, article, or terminal device that includes the elements. In addition, herein, "greater than", "less than", "exceeding" and the like are understood to exclude the present number, and "above", "below", "within" and the like are understood to include the present number.
The embodiments described above are intended to facilitate a person of ordinary skill in the art in order to make and use the present invention, it will be apparent to those skilled in the art that various modifications may be made to the embodiments and that the general principles described herein may be applied to other embodiments without the need for inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Claims (9)
1. The utility model provides a pipeline continuous type powder mixing arrangement for preparation of positive pole material, its characterized in that includes fan, feed bin, dust remover, draught fan, receipts feed cylinder, mixing arrangement and agitating unit, mixing arrangement includes connecting tube and two at least mixing chambers, connecting tube connects the mixing chamber, agitating unit includes stirring vane pole, gear drive pole and motor, stirring vane pole is provided with two, two the blade stirring pole is connected respectively the both ends of gear drive pole, two stirring vane pole inserts respectively in one mixing chamber, gear drive pole with be equipped with the bevel gear on the motor shaft of motor respectively, and the bevel gear of both is 90 cooperation, connecting tube's entry connection the fan with the feed bin, the exit linkage dust remover, the top exit linkage of dust remover the draught fan, the bottom is connected receive the feed cylinder; the connecting pipeline comprises a first feeding pipe, a second feeding pipe, a first shunt pipe, a second shunt pipe and a blanking pipe, wherein the mixing chamber comprises a first-stage mixing chamber, a second-stage mixing chamber, a third-stage mixing chamber, a first nozzle, a second nozzle and a third nozzle, the first shunt pipe, the second shunt pipe, the first nozzle, the second nozzle and the third nozzle are respectively provided with two, the outlets of the first feeding pipe and the second feeding pipe are respectively connected with two first nozzles, the two first nozzles are respectively connected with the first-stage mixing chamber, the inlets of the two first shunt pipes are connected with the first-stage mixing chamber, the outlets of the two first shunt pipes are respectively connected with two second nozzles, the two second nozzles are respectively connected with the second-stage mixing chamber, the inlets of the two second shunt pipes are connected with the second-stage mixing chamber, the outlet is connected with two third nozzles, the two third nozzles are connected with a third-stage mixing chamber, the outlet of the third stage is connected with the inlet of the blanking pipe, and two stirring vane rods are respectively inserted into the first-stage mixing chamber and the second-stage mixing chamber.
2. The device for continuously mixing powder in a pipeline for preparing a positive electrode material according to claim 1, wherein the stirring device further comprises an airflow sealing end cover, an airflow sealing chamber and a bearing, the airflow sealing end cover, the airflow sealing chamber and the bearing are arranged corresponding to the stirring blade rod, the airflow sealing chamber is arranged on the stirring blade rod, a small hole is formed in the bottom of the airflow sealing chamber, the airflow sealing end cover is arranged at the top of the airflow sealing chamber, and the bearing is arranged in the airflow sealing chamber and is used for being matched with the stirring blade rod.
3. The continuous powder mixing device for preparing a pipeline for a positive electrode material according to claim 2, wherein the stirring device further comprises a large sealing ring and a small sealing ring, and the large sealing ring and the small sealing ring are respectively arranged at the positions of an outer ring and an inner ring of the bearing.
4. The pipeline continuous powder mixing device for preparing the anode material according to claim 1, wherein 2-10 layers of blades are arranged on the stirring blade rod, and 2-5 blades are arranged on each layer.
5. The continuous powder mixing device for preparing a pipeline for a positive electrode material according to claim 1, wherein a first blade is arranged in each of the first feeding pipe and the second feeding pipe, a second blade is arranged in each of the first split-flow pipe, the first blade and the second blade are arranged in a spiral shape, the rotation directions of the first blade in each of the first feeding pipe and the second feeding pipe are the same, and the rotation directions of the second blade in each of the two first split-flow pipes are the same.
6. The continuous powder mixing device for a positive electrode material production pipe according to claim 5, wherein the first blade and the second blade have a spiral diameter ranging from 20 to 200mm, a pitch ranging from 20 to 100mm, and a number of turns of 0.5.
7. The continuous powder mixing device for preparing a pipeline for a positive electrode material according to claim 1, wherein the first feeding pipe and the second feeding pipe are arranged as circular pipelines, the pipe diameter range is 20-200 mm, the first feeding pipe and the second feeding pipe comprise straight pipes, bent pipes, straight pipes, bent pipes and straight pipes which are connected in sequence, the length range of the straight pipes is 40-500mm, and the bending angle range of the bent pipes is 30-160 degrees.
8. The continuous powder mixing apparatus for preparing a positive electrode material according to claim 1, wherein the first nozzle, the second nozzle and the third nozzle are provided as gradually contracting pipes having a contracting angle ranging from 10 ° to 60 °, an inlet diameter ranging from 20 to 200mm, and an outlet diameter ranging from 5 to 30mm.
9. The apparatus according to claim 1, wherein the first stage mixing chamber and the second stage mixing chamber are formed in a hollow sphere structure having a diameter ranging from 40 to 300mm, the third stage mixing chamber is formed in a cylindrical structure having taper angles at the top and bottom, the taper angles are ranging from 10 ° to 45 °, and the diameter ranges from 40 to 300mm.
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| CN210699957U (en) * | 2019-08-20 | 2020-06-09 | 漳州明德工贸有限公司 | High-speed battery material mixing system with dust removal device |
| CN115888521A (en) * | 2023-02-13 | 2023-04-04 | 湖北汽车工业学院 | Liquid material mixing equipment |
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| CN113648857A (en) * | 2020-05-12 | 2021-11-16 | 中国石油天然气股份有限公司 | Crude oil dynamic mixing device |
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| CN210699957U (en) * | 2019-08-20 | 2020-06-09 | 漳州明德工贸有限公司 | High-speed battery material mixing system with dust removal device |
| CN115888521A (en) * | 2023-02-13 | 2023-04-04 | 湖北汽车工业学院 | Liquid material mixing equipment |
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