Gas conveying equipment for rapidly crushing dry powder of battery material

Abstract

The utility model discloses gas conveying equipment for quickly crushing dry powder of battery materials, which comprises a material bin for storing the dry powder of the battery materials; the bin pump is connected with the material bin through a first pipeline, and the bin pump is used for receiving and pumping the dry powder in the material bin; the circular conveying pipeline is connected with an outlet of the bin pump through a second pipeline; the positive pressure launching device is connected with the bin pump, and the positive pressure launching device is used for carrying out positive pressure dilute phase conveying on the bin pump; the receiving bin is connected with an outlet of the circular conveying pipeline through a third pipeline, and the receiving bin is used for receiving the conveyed dry powder. On the premise that the conveying capacity is guaranteed, the dry powder material is effectively crushed in the conveying process, so that the yield of finished products in subsequent procedures is improved, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of battery material production equipment, specifically relating to a gas conveying device for rapidly crushing dry powder of battery materials. Background Technology

[0002] In battery material production, especially in the lithium iron phosphate production process, dry powder conveying is an important step before sintering.

[0003] Current conveying methods have several problems. On the one hand, existing conveying equipment shows little change in the degree of particle breakage before and after conveying dry powder, leading to increased spray volume and reduced yield during subsequent sintering. On the other hand, attempts to add components to improve particle breakage result in problems such as low conveying pressure, slow flow rate, reduced conveying capacity, and easy pipe blockage. These problems seriously affect production efficiency and product quality, hindering the development of battery material production. Therefore, a new type of gas conveying equipment is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a gas conveying device for rapidly crushing dry powder of battery materials. While ensuring conveying capacity, it can effectively crush dry powder materials during the conveying process, thereby improving the yield of finished products in subsequent processes and increasing production efficiency.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A gas conveying device for rapidly crushing dry powder of battery materials, comprising:

[0006] Material silo, used to store dry powder of battery materials;

[0007] A silo pump is connected to a material silo via a first pipe. The silo pump is used to receive and pump dry powder from the material silo.

[0008] A circular conveying pipe is connected to the outlet of the silo pump via a second pipe;

[0009] A positive pressure emission device is connected to the chamber pump, and the positive pressure emission device is used to perform positive pressure dilute phase delivery to the chamber pump;

[0010] The receiving chamber is connected to the outlet of the circular conveying pipe via a third pipe, and the receiving chamber is used to receive the dry powder after conveying.

[0011] As a preferred embodiment of a gas conveying device for rapidly crushing dry powder of battery materials, the circular conveying pipe is composed of 6-8 ceramic-lined 304 stainless steel rings.

[0012] As a preferred embodiment of a gas conveying device for rapidly crushing dry powder of battery materials, a first flow regulating valve is provided on the first pipeline. The first flow regulating valve is used to control the feed flow rate from the material silo to the silo pump.

[0013] As a preferred embodiment of a gas conveying device for rapidly crushing dry powder of battery materials, a second flow regulating valve is provided on the second pipeline. The second flow regulating valve is used to control the feed flow rate of the silo pump to the circular conveying pipeline.

[0014] As a preferred embodiment of a gas conveying device for rapidly crushing dry powder of battery materials, the positive pressure launching device includes a purge pipeline and a fluidization pipeline, both of which are connected to the side inlet of the chamber pump via a valve group.

[0015] As a preferred embodiment of a gas conveying device for rapidly crushing dry powder of battery materials, the positive pressure launching device further includes a pressurizing pipeline; the pressurizing pipeline is connected to the outlet of the chamber pump through a valve group, and the pressurizing pipeline is also connected to the inlet of the circular conveying pipe.

[0016] As a preferred embodiment of a gas conveying device for rapidly crushing dry powder of battery materials, the positive pressure launching device further includes a flow-aiding pipeline; the flow-aiding pipeline is connected to the outlet of the circular conveying pipe through a valve group.

[0017] The beneficial effects of this utility model are as follows: By designing a circular conveying pipe and setting up a positive pressure launching device, the problems existing in the current conveying equipment are effectively solved. On the one hand, it achieves effective crushing of battery material powder during the conveying process, reduces the amount of material sprayed in the subsequent sintering process, and improves the yield; on the other hand, through positive pressure dilute phase conveying and the synergistic effect of various pipelines, it solves problems such as low conveying pressure, slow flow rate, and easy pipe blockage, improves conveying capacity and production efficiency, and has significant economic benefits and practical value. Attached Figure Description

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0020] Figure 1 This is a schematic diagram of the gas conveying device for rapidly crushing dry powder of battery materials provided in an embodiment of this utility model.

[0021] In the diagram, 1: material silo; 2: silo pump; 101: first pipeline; 3: circular conveying pipeline; 102: second pipeline; 4: positive pressure launching device; 5: receiving silo; 103: third pipeline; 61: first flow regulating valve; 62: second flow regulating valve; 401: purging pipeline; 402: fluidizing pipeline; 403: pressurizing pipeline; 404: flow aid pipeline. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0024] See Figure 1 This utility model provides a gas conveying device for rapidly crushing dry powder of battery materials, comprising:

[0025] Material silo 1, used to store dry powder of battery materials;

[0026] The silo pump 2 is connected to the material silo 1 via the first pipe 101. The silo pump 2 is used to receive and pump dry powder from the material silo 1.

[0027] The circular conveying pipe 3 is connected to the outlet of the silo pump 2 via the second pipe 102;

[0028] A positive pressure emission device 4 is connected to the chamber pump 2, and the positive pressure emission device 4 is used to perform positive pressure dilute phase transport on the chamber pump 2;

[0029] The receiving chamber 5 is connected to the outlet of the circular conveying pipe 3 via the third pipe 103, and the receiving chamber 5 is used to receive the dry powder after conveying.

[0030] In this embodiment, the circular conveying pipe 3 is composed of 6-8 ceramic-lined 304 stainless steel rings. On one hand, the high hardness and wear resistance of ceramics reduce wear on the inner wall of the circular conveying pipe 3, extending its service life. On the other hand, the circular design causes the material's flow direction to constantly change as it flows within the pipe 3, due to the obstruction and guidance of the rings. Under positive pressure, the material flows at high speed within the circular conveying pipe 3, frequently colliding with the inner wall. This impact effectively breaks up the dry powder particles of the battery material, altering its particle size distribution to meet the particle size requirements of subsequent sintering processes and improve sintering yield.

[0031] In this embodiment, during the operation of the entire gas conveying equipment, the first flow regulating valve 61 is installed on the first pipeline 101. Its main function is to precisely control the feed flow rate from the material bin 1 to the pump 2. When the equipment starts, the control system sends a control signal to the first flow regulating valve 61 according to the preset production process requirements and the pumping capacity of the pump 2. After receiving the signal, the regulating valve drives the valve core to move through the drive device. If it is necessary to increase the feed flow rate, the valve core will increase the flow area in the first pipeline 101, so that the dry powder in the material bin 1 can flow more smoothly to the pump 2; conversely, if it is necessary to reduce the feed flow rate, the valve core will reduce the flow area of ​​the pipeline, obstructing the flow of materials, thereby reducing the feed speed. By precisely controlling the feed flow rate, it can be ensured that the pump 2 always operates within its optimal working load range. On the one hand, it avoids overloading the pump 2 due to excessive feed, which would affect the service life and operational stability of the equipment; on the other hand, it prevents the pump 2 from running dry due to insufficient feed, which would reduce the conveying efficiency and may cause equipment wear. Meanwhile, a stable feed flow provides a stable material input for subsequent conveying and crushing processes, which helps maintain the continuity of the entire production process and the consistency of product quality.

[0032] In this embodiment, the second flow regulating valve 62 is installed on the second pipeline 102 and is responsible for controlling the feed flow rate of the silo pump 2 to the circular conveying pipeline 3. Its working principle is similar to that of the first flow regulating valve 61, relying on the adjustment of the valve core to change the flow area within the pipeline, thereby controlling the material flow rate. During equipment operation, the control system sends control commands to the second flow regulating valve 62 based on factors such as the material handling capacity of the circular conveying pipeline 3, the conveying pressure of the positive pressure launching device 4, and the material crushing effect. When an increase in feed flow is required, the valve core of the second flow regulating valve 62 actuates, increasing the flow area of ​​the second pipeline 102, allowing the material pumped by the silo pump 2 to enter the circular conveying pipeline 3 more quickly; conversely, when a decrease in flow is required, the valve core reduces the flow area, limiting the material throughput. Proper adjustment of the feed flow rate is crucial for the efficient operation of the equipment. If the feed flow rate is too high, it may cause material congestion in the circular conveying pipe 3, reducing the impact effect between the material and the inner wall of the pipe, affecting the crushing quality, and even causing blockage. If the feed flow rate is too low, the efficiency of the circular conveying pipe 3 and the positive pressure launching device 4 cannot be fully utilized, reducing the overall conveying and crushing efficiency. Through the precise control of the second flow regulating valve 62, uniform conveying and efficient crushing of materials in the pipe can be achieved, ensuring the stable and efficient operation of the entire gas conveying equipment.

[0033] In this embodiment, the positive pressure launching device 4 includes a purge line 401 and a fluidization line 402. Both the purge line 401 and the fluidization line 402 are connected to the side inlet of the chamber pump 2 through a valve group.

[0034] Specifically, the purging line 401 and fluidization line 402 serve as pretreatment and auxiliary conveying during the conveying process. Before conveying begins, the purging line 401 is opened, using high-pressure gas to purge the inside of the silo pump 2 and related pipelines, removing residual materials and impurities to prevent material contamination and pipeline blockage. During conveying, the fluidization line 402 delivers gas into the silo pump 2, causing the dry powder material to be in a fluidized state. In the fluidized state, the friction between material particles decreases, increasing fluidity and making it easier for the silo pump 2 to pump. This also helps improve the uniformity of material conveying within the pipeline, preventing material agglomeration and blockage.

[0035] In this embodiment, the positive pressure launching device 4 further includes a pressurizing pipeline 403; the pressurizing pipeline 403 is connected to the outlet of the chamber pump 2 through a valve group, and the pressurizing pipeline 403 is also connected to the inlet of the circular conveying pipeline 3.

[0036] Specifically, the pressurized pipeline 403 provides power support for material conveying. During the process of the silo pump 2 pushing the material into the circular conveying pipe 3, the pressurized pipeline 403 replenishes the pipe with high-pressure gas, creating a positive pressure environment. This positive pressure dilute phase conveying method results in a large gas flow rate, causing the material to flow at a high speed within the pipe under the influence of the gas. This higher flow velocity not only improves the material conveying efficiency but also increases the impact force and frequency between the material and the inner wall of the circular conveying pipe 3, further enhancing the material crushing effect.

[0037] In this embodiment, the positive pressure launching device 4 further includes a flow-aiding pipeline 404; the flow-aiding pipeline 404 is connected to the outlet of the circular conveying pipeline 3 through a valve group.

[0038] Specifically, the flow-aiding pipe 404 plays a role at the end of the material conveying process. When the material approaches the outlet of the circular conveying pipe 3, the flow rate may decrease and the conveying process may become obstructed due to pipe friction and material accumulation. The flow-aiding pipe 404 applies additional thrust to the material by delivering high-pressure gas to the pipe outlet, helping the material to flow smoothly out of the circular conveying pipe 3, preventing blockage at the outlet, and ensuring the smooth operation of the entire conveying process.

[0039] The working principle of this utility model is as follows:

[0040] First, the feeding stage: Material silo 1 is used to store battery material dry powder, playing a role in raw material reserve throughout the entire production process. The first flow regulating valve 61 on the first pipeline 101 precisely controls the feed flow from material silo 1 to pump 2 based on preset production process parameters and the pumping capacity of pump 2. When the equipment starts, the first flow regulating valve 61 receives a control signal from the control system, which drives the valve core to adjust the flow area of ​​the first pipeline 101, thereby controlling the speed and quantity of dry powder flowing into pump 2. This ensures that pump 2 operates under optimal working load, avoiding overloading due to excessive feeding or idling due to insufficient feeding.

[0041] Second, the pumping and initial conveying stage: The silo pump 2 is connected to the material silo 1 via the first pipe 101. When the silo pump 2 starts, it uses the suction generated by its internal pumping mechanism to draw the dry powder from the material silo 1 into the silo. Subsequently, the pressurizing device inside the silo pump 2 applies pressure to the dry powder, overcoming pipe resistance and pushing the dry powder along the second pipe 102 to the circular conveying pipe 3. During this process, the second flow regulating valve 62 on the second pipe 102, based on factors such as the material handling capacity of the circular conveying pipe 3, the conveying pressure of the positive pressure launching device 4, and the material crushing effect, issues instructions from the control system to adjust the valve core, changing the pipe flow area and precisely controlling the feed flow rate of the silo pump 2 to the circular conveying pipe 3, ensuring stable conveying and efficient processing of materials in subsequent stages.

[0042] Third, the crushing and main conveying stage: The circular conveying pipe 3 is connected to the outlet of the silo pump 2 via the second pipe 102, and consists of 6-8 ceramic-lined 304 stainless steel rings. The material pushed by the silo pump 2 flows at high speed within the circular conveying pipe 3 under the positive pressure environment generated by the positive pressure launching device 4. Due to the circular structure of the pipe and the obstruction and guidance of the rings, the material flow direction constantly changes, frequently colliding with the inner wall of the pipe, thereby achieving the crushing of the battery material dry powder. Before conveying, the purging pipe 401 of the positive pressure launching device 4 uses high-pressure gas to purge the inside of the silo pump 2 and related pipes, removing residual materials and impurities; the fluidization pipe 402 delivers gas into the silo pump 2 during the conveying process, keeping the dry powder material in a fluidized state, reducing inter-particle friction, enhancing fluidity, facilitating pumping by the silo pump 2, and ensuring uniform material conveying within the pipe. The pressurization pipe 403 supplements the pipe with high-pressure gas, forming a positive pressure dilute phase conveying environment, increasing the material flow rate, improving conveying efficiency, and increasing the impact force and frequency of the material against the inner wall of the pipe, thus enhancing the crushing effect.

[0043] Fourth, the unloading stage: After crushing and conveying, the material enters the receiving bin 5 from the outlet of the circular conveying pipe 3 through the third pipe 103. The receiving bin 5 is the end point of material conveying and is used to store and temporarily store the conveyed dry powder. When the material approaches the outlet of the circular conveying pipe 3, the flow-aiding pipe 404 of the positive pressure launching device 4 delivers high-pressure gas to the pipe outlet, applying additional thrust to the material to prevent blockage at the outlet and ensure that the material smoothly enters the receiving bin 5, providing qualified material reserves for subsequent production processes. The entire gas conveying equipment achieves efficient conveying and crushing of battery material dry powder through the coordinated work of its various components.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A gas delivery apparatus for rapid comminution of dry powders of battery materials, characterized by, The utility model relates to a kind of battery material conveying systems, comprising: Material bin (1) for storing dry powder of battery material; Bin pump (2) connected with material bin (1) through first pipeline (101), the bin pump (2) is used to receive and pump dry powder in material bin (1); Circular conveying pipeline (3) connected with the outlet of the bin pump (2) through second pipeline (102); Positive pressure launching device (4) connected with the bin pump (2), the positive pressure launching device (4) is used for the positive pressure dilute phase conveying of the bin pump (2); Receiving bin (5) connected with the outlet of the circular conveying pipeline (3) through third pipeline (103), the receiving bin (5) is used to receive dry powder after conveying.

2. The gas delivery apparatus for rapid comminution of dry powders of battery materials of claim 1, wherein, The circular conveying pipeline (3) is composed of 6-8 ceramic-lined 304 stainless steel rings.

3. The gas delivery apparatus for rapid comminution of dry powders of battery materials of claim 1, wherein, First flow regulating valve (61) is arranged on the first pipeline (101), and the first flow regulating valve (61) is used to control the material bin (1) to the feeding flow of the bin pump (2).

4. The gas delivery apparatus for rapid comminution of dry powders of battery materials of claim 1, wherein, Second flow regulating valve (62) is arranged on the second pipeline (102), and the second flow regulating valve (62) is used to control the bin pump (2) to the feeding flow of the circular conveying pipeline (3).

5. The gas delivery apparatus for rapid comminution of dry powders of battery materials of claim 1, wherein, The positive pressure launching device (4) includes purge pipeline (401), fluidization pipeline (402), and the purge pipeline (401), the fluidization pipeline (402) are connected with the side inlet of the bin pump (2) through valve group.

6. A gas delivery apparatus for rapid comminution of dry powders of battery materials according to claim 5, wherein, The positive pressure launching device (4) further includes pressurizing pipeline (403);The pressurizing pipeline (403) is connected with the outlet of the bin pump (2) through valve group, and the pressurizing pipeline (403) is also connected with the inlet of the circular conveying pipeline (3).

7. A gas delivery apparatus for rapid comminution of dry powders of battery materials according to claim 6, wherein, The positive pressure launching device (4) further includes flow-aiding pipeline (404);The flow-aiding pipeline (404) is connected with the outlet of the circular conveying pipeline (3) through valve group.

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