Material crushing and depolymerizing system
By integrating a feeding hopper, crushing components, and screening components into a material crushing and deagglomeration system, the problems of low production efficiency and impurity introduction in existing technologies have been solved, achieving efficient and clean graphitized material processing and improving the production efficiency and quality of artificial graphite anode materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-24
AI Technical Summary
Existing production systems cannot achieve continuous operation, are inefficient, and are prone to introducing impurities, affecting the production efficiency and product quality of artificial graphite anode materials.
Design a material crushing and deagglomeration system that integrates a feeding hopper, crushing components, and screening components. The system is connected in a closed loop through a conveying pipeline. It uses a combination of crusher and deagglomerator to process lumpy materials and is equipped with a negative pressure dust collector and multiple sets of parallel screening mechanisms to achieve efficient and clean production throughout the entire process.
It significantly improves production efficiency, reduces material transfer links, avoids the introduction of impurities, ensures product purity, shortens the production cycle, reduces energy consumption and labor costs, increases material yield, and provides support for the large-scale production of high-quality artificial graphite anode materials.
Smart Images
Figure CN224025212U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to material crushing technical field, more specifically, relate to a material crushing depolymerization system. BACKGROUND
[0002] In the production process of artificial graphite negative electrode material, graphitization process is the core link of determining material performance, which makes carbon material form highly ordered graphite structure through high temperature heat treatment, thereby improving the conductivity and stability of material. However, the material after graphitization treatment often appears to be lumped, and forms blocky material with 5-10cm square, and the particle size distribution (D50) required by the actual product is usually 10-15um. If this lumped material directly enters the subsequent process, not only the production efficiency will be reduced, but also the product quality, yield and cost will be significantly negatively affected, so it must be crushed and screened to meet the requirements of downstream process.
[0003] At present, the industry generally adopts traditional methods such as hammer breaking or crusher to process the lumped material after graphitization, and the lumped material is crushed and then transported to the screening equipment for operation. However, such methods have obvious defects: first, the crushing efficiency is low, and it is difficult to realize continuous production, which seriously slows down the production rhythm; second, the crushed material needs to be transported to the screening process separately, and in this process, metal foreign matters or other impurities are easily introduced due to equipment contact or environmental exposure, resulting in abnormal product quality; finally, the segmented operation mode of crushing and screening not only increases the equipment investment and labor cost, but also causes loss due to the multiple circulation of material, further reducing the overall yield. These problems restrict the production efficiency and product consistency of artificial graphite negative electrode material, and an efficient, low-pollution and integrated solution is needed to optimize the existing process. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a material crushing depolymerization system, which aims to solve the problems that the existing production system cannot realize continuous operation, not only low efficiency, but also easy to mix impurities in the operation process, affecting product quality.
[0005] To achieve the above purpose, the utility model adopts the technical scheme of:
[0006] A material crushing depolymerization system is provided, which comprises a feeding bin, a crushing assembly and a screening assembly connected in sequence, wherein the feeding bin and the crushing assembly, and the crushing assembly and the screening assembly are connected through conveying pipelines, the crushing assembly comprises a crusher connected to the discharge end of the feeding bin and a depolymerizer connected to the crusher.
[0007] In a possible implementation, the crushing assembly further comprises a depolymerization bin connected to the discharge end of the depolymerizer, and a negative pressure dust collector arranged in the depolymerization bin, the negative pressure dust collector being configured to form a negative pressure environment in the depolymerization bin and to remove dust in the depolymerization bin.
[0008] In a possible implementation, the screening assembly comprises a plurality of sets of screening mechanisms connected in parallel, each of the screening mechanisms comprising a buffer bin and a screening device connected in sequence, and the buffer bin being connected to the crushing assembly.
[0009] In a possible implementation, the screening device comprises a plurality of sets of vibrating screens connected in parallel, and each of the vibrating screens being connected to the same buffer bin.
[0010] In a possible implementation, the screening mechanism further comprises a feeding dust collector connected to the buffer bin, the feeding dust collector being configured to deliver the material from the crushing assembly to the buffer bin and to remove dust in the buffer bin.
[0011] In a possible implementation, the screening mechanism further comprises a falling bin connected to the screening device, the falling bin being configured to temporarily store the qualified material screened by the screening device.
[0012] In a possible implementation, the material crushing and depolymerization system further comprises a packaging machine connected to the screening assembly, the packaging machine being configured to package the qualified material screened by the screening assembly.
[0013] In a possible implementation, the material crushing and depolymerization system further comprises a recycling bin connected to the screening assembly, the recycling bin being configured to recycle the unqualified material screened by the screening assembly.
[0014] In a possible implementation, the material crushing and depolymerization system further comprises a recycling pipe connected to the recycling bin and the feeding bin, the recycling pipe being configured to deliver the material in the recycling bin to the feeding bin.
[0015] In a possible implementation, the material crushing and depolymerization system further comprises a filter arranged in the feeding bin.
[0016] The material smashing and depolymerization system has the advantages that, compared with the prior art, the material smashing and depolymerization system integrates the feeding bin, the smashing assembly and the screening assembly in the same system, and adopts the conveying pipeline to realize the closed connection of each link, thereby significantly improving the production efficiency and product quality of the artificial graphite negative electrode material. The combination design of the crusher and the depolymerizer can efficiently process the blocky material after graphitization, so that the blocky material can quickly reach the target particle size, and the problem of low efficiency of the traditional crushing process is avoided. The pipeline conveying of the whole process not only reduces the material transfer link, but also completely eliminates the risk of introduction of foreign matters from the outside, thereby ensuring the purity of the product. Since the material is first crushed into small particles by the crusher and then treated by the depolymerizer, the blocky material formed by adhesion is dispersed, and the problem that the particle size of the existing material does not meet the requirements is completely solved. In addition, the integrated continuous operation mode greatly shortens the production cycle, reduces the energy consumption and labor cost, and improves the material yield, thereby providing reliable technical support for the large-scale production of high-quality artificial graphite negative electrode material. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0018] Figure 1 The structure diagram of the material smashing and depolymerization system provided by the embodiments of the present application is shown.
[0019] In the figure: 1, feeding bin; 2, smashing assembly; 201, crusher; 202, depolymerizer; 203, depolymerization bin; 204, negative pressure dust collector; 3, screening assembly; 301, feeding dust collector; 302, buffer bin; 303, vibrating screen; 304, discharging bin; 4, packaging machine. DETAILED DESCRIPTION
[0020] In order to make the technical problems, technical solutions and advantages of the present application more clearly understood, the following will further describe the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.
[0021] In the claims, the specification, and the drawings of the present application, terms such as "first", "second", and "third" are used merely to distinguish one object or implementation from another, without necessarily implying a particular order or sequence. Unless otherwise specified, the orientation or position, such as "vertical", "clockwise", "counter clockwise", etc., is based on the orientation and position shown in the drawings, and is used only for the purpose of convenience and brevity in describing the present application and its embodiments, and does not imply or suggest that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation. Therefore, it cannot be understood as limiting the specific protection scope of the present application. In the claims, the specification, and the drawings of the present application, unless otherwise specified, the term "fixedly connected" or "fixedly connected" should be understood broadly, that is, any connection mode between the two without displacement relationship and relative rotation relationship, that is, it includes non-detachable fixed connection, detachable fixed connection, integration and fixed connection through other devices or elements. In the claims, the specification, and the drawings of the present application, the terms "include", "have" and their variants are intended to mean "contain but not limited to".
[0022] Please refer to Figure 1 The material crushing and depolymerization system provided by the present application will be described. The material crushing and depolymerization system comprises a feeding bin 1, a crushing assembly 2 and a screening assembly 3 connected in sequence, wherein the feeding bin 1 and the crushing assembly 2 are connected through a conveying pipeline, and the crushing assembly 2 comprises a crusher 201 connected to the discharge end of the feeding bin 1 and a depolymerizer 202 connected to the crusher 201.
[0023] Compared with the prior art, the material crushing and depolymerization system provided by the present application integrates the feeding bin 1, the crushing assembly 2 and the screening assembly 3 in the same system, and adopts a conveying pipeline to realize closed connection of each link, thereby significantly improving the production efficiency and product quality of artificial graphite negative materials. The combination design of the crusher 201 and the depolymerizer 202 can efficiently process the blocky material after graphitization, so that it quickly reaches the target particle size, while avoiding the low efficiency problem of traditional crushing process; and the pipeline conveying of the whole process not only reduces the material transfer link, but also completely eliminates the risk of foreign matter introduction from the outside, thereby ensuring the purity of the product. Since the material is first crushed into small particles by the crusher 201, and then treated by the depolymerizer 202 to disperse the blocky material adhered, the problem that the particle size of the existing material does not meet the requirements is completely solved. In addition, the integrated continuous operation mode greatly shortens the production cycle, reduces energy consumption and labor cost, and improves the material yield, thereby providing reliable technical support for the large-scale production of high-quality artificial graphite negative materials.
[0024] Optionally, the discharge end of the feeding bin 1 is provided with an on-off valve.
[0025] Optionally, each conveying pipe is provided with an on-off valve and / or a conveying pump.
[0026] Optionally, the feeding bin 1 is located above the crusher 201, and the material enters the crusher 201 under the action of gravity. In this embodiment, a conveying pump is not required, which saves energy consumption and improves the efficiency of the material entering the crusher 201.
[0027] Optionally, the crusher 201 is a pipeline crusher 201. The pipeline crusher 201 can be directly connected with the conveying pipeline to realize closed continuous crushing of the material, avoid the problems of frequent start-stop and intermittent operation in the traditional crushing process, and greatly improve the production efficiency, especially suitable for large-scale production requirements. In addition, the crushing process is completely completed in the pipeline, which prevents the material from contacting the external environment and effectively prevents the introduction of impurities such as metal foreign matter and dust, thereby ensuring the high-purity requirement of the artificial graphite negative electrode material.
[0028] In some embodiments, referring to Figure 1 , the crushing assembly 2 further includes a depolymerization bin 203 connected to the discharge end of the depolymerizer 202, and a negative pressure dust collector 204 arranged in the depolymerization bin 203. The negative pressure dust collector 204 is used to form a negative pressure environment in the depolymerization bin 203 and to remove dust in the depolymerization bin 203.
[0029] The technical solution realizes multiple synergistic optimization effects by arranging the depolymerization bin 203 at the discharge end of the depolymerizer 202 and providing the negative pressure dust collector 204. The negative pressure dust collector 204 forms a stable negative pressure environment in the depolymerization bin 203, which effectively adsorbs and collects fine dust generated in the crushing process, significantly reduces material loss and improves the working environment, and prevents external impurities from mixing to ensure product purity. At the same time, the depolymerization bin 203 as a process buffer unit can balance the difference in system processing capacity to ensure continuous and stable production, and the fine powder recovered by the negative pressure system can be directly reused, which improves the utilization rate of raw materials and reduces energy consumption. Overall, the crushing and depolymerization process of the graphite negative electrode material is efficient, clean, and quality controllable, which provides ideal material conditions for subsequent processes.
[0030] Optionally, the discharge end of the depolymerization bin 203 is provided with an on-off valve.
[0031] In some embodiments, referring to Figure 1 , the screening assembly 3 includes multiple groups of parallel screening mechanisms, and each screening mechanism includes a buffer bin 302 and a screening device connected in sequence, and the buffer bin 302 is connected to the crushing assembly 2.
[0032] The technical scheme adopts multiple sets of parallel screening mechanisms, each set of screening mechanism comprising a buffer bin 302 in direct communication with the crushing assembly 2 and a screening device, realizing efficient and systematic operation of the screening process. The buffer bin 302 effectively buffers material conveying fluctuations, ensuring continuous and stable operation of the screening device, and the multiple sets of parallel structure greatly improves the system processing capacity, which can be flexibly adjusted according to production needs; at the same time, this modular design enables independent maintenance of a single set of screening mechanism without affecting the overall production, significantly improving equipment utilization and production continuity, forming a complete automated production line with the front-end crushing assembly 2, ensuring screening efficiency and ensuring the particle size consistency of artificial graphite negative materials, and providing stable and reliable material supply for subsequent processes.
[0033] Optionally, the crushing assembly 2 and the buffer bin 302 are connected through a conveying pipe, and a conveying pump is arranged on the conveying pipe.
[0034] In some embodiments, referring to Figure 1 , the screening device comprises multiple sets of parallel vibration screens 303, each vibration screen 303 being in communication with the same buffer bin 302.
[0035] The technical scheme adopts multiple sets of parallel vibration screens 303 sharing the same buffer bin 302, realizing significant improvement of screening efficiency and production flexibility. The buffer bin 302 as a centralized feeding unit can uniformly distribute materials to each parallel vibration screen 303, effectively avoiding single machine overload and ensuring screening consistency, while the multiple machine parallel structure greatly improves the system processing capacity, which can adapt to different scale production needs; when part of the vibration screens 303 need to be maintained, the remaining devices can still continue to operate, ensuring production continuity, while the unified buffer bin 302 design simplifies the material conveying process, reduces the equipment floor area and energy consumption, and overall realizes efficient, stable and intensive production of artificial graphite negative material screening process, providing reliable guarantee for product quality control.
[0036] In some embodiments, referring to Figure 1 , the screening mechanism further comprises a feeding dust collector 301 connected to the buffer bin 302, the feeding dust collector 301 being used to convey the material of the crushing assembly 2 into the buffer bin 302 and to remove dust in the buffer bin 302.
[0037] By adding the feeding dust collector 301 to the buffer bin 302 of the screening mechanism, the integration of the material conveying and dust removal process is realized. The feeding dust collector 301 synchronously removes the dust generated during the conveying process while efficiently conveying the material of the crushing assembly 2 to the buffer bin 302, which not only effectively prevents material loss due to dispersion, but also avoids the impact of dust pollution on screening accuracy. This design not only ensures the cleanliness of the material before screening and improves the quality consistency of the negative material, but also optimizes the production environment through the closed conveying and dust removal system, reduces the subsequent dust removal burden, and simplifies the equipment layout through the integrated functional design, improving the space utilization. The entire screening process ensures efficient production while achieving clean and energy-saving operation.
[0038] In some embodiments, referring to Figure 1 , the screening mechanism further includes a discharging bin 304 connected to the screening device, and the discharging bin 304 is used for temporarily storing the qualified material after screening.
[0039] The discharging bin 304 is arranged downstream of the screening device, realizing the intelligent buffering and temporary storage function of the material after screening, and forming a flexible connection between the screening process and the subsequent packaging or processing process. As a transitional storage unit, the discharging bin 304 can balance the capacity difference between the screening device and the downstream process, avoid material accumulation or equipment idling due to mismatched processing speed, and ensure continuous and stable material supply for the subsequent process through centralized temporary storage. At the same time, this design enables the screening system to operate independently without being affected by the downstream process, significantly improving the overall coordination and equipment utilization of the production line, and reducing downtime waiting time. In addition, the closed structure of the discharging bin 304 effectively prevents secondary pollution of the qualified material after screening, ensuring the stability of the final quality of the artificial graphite negative material.
[0040] In some embodiments, referring to Figure 1 , the material crushing and depolymerization system further includes a packaging machine 4 connected to the screening assembly 3, and the packaging machine 4 is used for packaging the qualified material after screening.
[0041] The packaging machine 4 is directly connected to the screening assembly 3, forming a complete closed-loop production system from material crushing and depolymerization to finished product packaging, realizing efficient and continuous production of artificial graphite negative material. The packaging machine 4 directly interfaces with the qualified material after screening, eliminating the material temporary storage and secondary handling steps in traditional processes, which significantly improves production efficiency and avoids the risk of pollution introduced during material transfer. At the same time, this integrated design ensures the whole process of product from production to packaging is closed, effectively maintaining the physical properties and chemical purity of graphite material. The introduction of automated packaging process not only reduces manual intervention and production cost, but also ensures the consistency of packaging quality of each batch of products through standardized operation, achieving multiple optimization of production efficiency, product quality and cost control.
[0042] In some embodiments, referring to Figure 1 The material crushing and depolymerization system further comprises a recycling bin connected to the screening assembly 3, which is used to recycle the unqualified material screened by the screening assembly 3.
[0043] The technical solution sets up a complete material recycling system by setting a recycling bin at the rear end of the screening assembly 3, and realizes efficient recycling and resource utilization of unqualified materials in the production process. The recycling bin can automatically collect materials with unsatisfactory particle size or impurities generated in the screening process, and return them to the previous crushing or depolymerization process for secondary processing through a closed conveying pipeline, which significantly improves the utilization rate of raw materials, reduces production costs, and reduces environmental pollution caused by waste accumulation in traditional processes. At the same time, the design realizes the self-circulation optimization of the production system, avoids the quality fluctuations caused by manual sorting and transportation, ensures the consistency between batches, and further improves the overall production efficiency, making the production process of artificial graphite negative materials more environmentally friendly, economical and sustainable.
[0044] In some embodiments, referring to Figure 1 The material crushing and depolymerization system further comprises a recycling pipe connected to the recycling bin and the feeding bin 1, which is used to convey the material in the recycling bin to the feeding bin 1.
[0045] The recycling pipe directly conveys the unqualified material after screening back to the feeding bin 1 to re-enter the crushing and depolymerization process, which not only completely avoids the low efficiency and pollution risk caused by manual material returning in traditional processes, but also ensures zero leakage and zero pollution in the material circulation process through the fully closed design. This design significantly improves the utilization rate of raw materials, greatly improves the overall material yield, and the systematic automatic material returning mechanism eliminates the production interruption time, improves the equipment utilization rate, reduces the waste treatment cost, and improves the quality stability of the final product by continuously optimizing the material particle size distribution, which truly realizes the efficiency, cleanliness and resource recycling of artificial graphite negative material production.
[0046] In some embodiments, referring to Figure 1 The material crushing and depolymerization system further comprises a filter arranged in the feeding bin 1.
[0047] The technical scheme realizes the double functions of pretreatment purification of raw materials and system protection by additionally arranging a filter in the feeding bin 1. The filter can effectively intercept the foreign matters such as fibers and large-particle impurities mixed in the recycled materials and newly fed materials, thus avoiding the pollutants from entering the subsequent crushing and depolymerization system from the source, avoiding the abrasion of the crushing equipment by the impurities, prolonging the service life of the equipment, and significantly improving the product purity. Meanwhile, the built-in design does not occupy extra space, realizes the online purification of the raw materials while maintaining the compactness of the system, forms a complete closed-loop clean production system with the recycling pipeline, keeps the material at high cleanliness during the circulation process, and overall guarantees the quality consistency of the artificial graphite negative material, reduces the equipment maintenance frequency, reduces the production cost, improves the production efficiency, and realizes the double optimization of quality and benefit.
[0048] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A material crushing and deagglomeration system, characterized in that, It includes a feeding hopper, a crushing component, and a screening component connected in sequence. The feeding hopper and the crushing component, as well as the crushing component and the screening component, are connected by conveying pipes. The crushing component includes a crusher connected to the discharge end of the feeding hopper and a deagglomerator connected to the crusher.
2. The material crushing and deagglomeration system as described in claim 1, characterized in that, The pulverizing assembly also includes a depolymerization hopper connected to the discharge end of the depolymerization machine, and a negative pressure dust collector installed in the depolymerization hopper. The negative pressure dust collector is used to create a negative pressure environment in the depolymerization hopper and to remove dust from the depolymerization hopper.
3. The material crushing and deagglomeration system as described in claim 1, characterized in that, The screening assembly includes multiple sets of screening mechanisms connected in parallel. Each screening mechanism includes a buffer hopper and a screening device connected in sequence. The buffer hopper is connected to the crushing assembly.
4. The material crushing and deagglomeration system as described in claim 3, characterized in that, The screening equipment includes multiple sets of vibrating screens connected in parallel, and each vibrating screen is connected to the same buffer silo.
5. The material crushing and deagglomeration system as described in claim 3, characterized in that, The screening mechanism also includes a feeding dust collector connected to the buffer silo. The feeding dust collector is used to transport the material from the crushing component into the buffer silo and to remove dust from the buffer silo.
6. The material crushing and deagglomeration system as described in claim 3, characterized in that, The screening mechanism also includes a discharge bin connected to the screening equipment, which is used to temporarily store qualified materials after screening.
7. The material crushing and deagglomeration system as described in claim 1, characterized in that, The material crushing and deagglomeration system also includes a packaging machine connected to the screening component, which is used to package the qualified materials after screening.
8. The material crushing and deagglomeration system as described in claim 1, characterized in that, The material crushing and deagglomeration system also includes a recovery hopper connected to the screening component, which is used to recover the non-conforming materials after screening by the screening component.
9. The material crushing and deagglomeration system as described in claim 8, characterized in that, The material crushing and deagglomeration system also includes a recovery pipe connecting the recovery silo and the feeding silo, the recovery pipe being used to transport the material in the recovery silo to the feeding silo.
10. The material crushing and deagglomeration system as described in claim 1, characterized in that, The material crushing and deagglomeration system also includes a filter installed in the feeding hopper.