Granulation material screening and mixing system
The materials generated by the reaction kettle are divided into sieve and sieve lower part through the screening unit, and only ball milling and fusing are performed on the screen, solving the problems of low efficiency of ball mills and low material pass rate in the prior art, and achieving an efficient granulation process.
Patent Information
- Application Number
- CN202422338533.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In the existing granulation process, when the materials are uniformly ball milled and fused, the pass rate of the final material is affected, and the production efficiency of the ball mill is low due to uneven particle size distribution.
The material generated by the reactor is divided into the sieve and the sieve. The sieve is entered into the grinding unit for ball milling and fusing. The sieve is directly entered into the mixer. The ball mill and the fusion machine only process particles with larger particle sizes, and after mixing, a mixed material with smaller particle size distribution is formed.
The production efficiency of the ball mill is improved, the particle size difference is reduced, and the final material pass rate and the progress of the granulation process are improved.
Smart Images
Figure CN223128014U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of granulation, and particularly relates to a granulation material screening and mixing system. Background Art
[0002] In the production process of artificial graphite, carbon powder particles are usually granulated. Through the granulation process, both the capacity of the final product (artificial graphite anode material) can be ensured and the rate performance of the final product can be improved. At the end of the granulation process, the conventional process is reaction kettle granulation, ball milling, and fusion in sequence. The produced carbon powder material flows to subsequent processes such as graphitization, so as to produce qualified artificial graphite anode materials.
[0003] In the above granulation process, the reaction kettle granulation materials are uniformly ball milled and fused without difference. Since the particle size distribution of the reaction kettle granulation materials is relatively wide (when some aggregates react with the binder, massive materials with a size of more than 100 μm will be formed), when uniformly ball milling and fusing, it is easy to damage small particle materials (such as over-milling) while ball milling large particle materials or massive materials, thus affecting the material qualification rate. At the same time, since the production efficiency of the ball mill is affected by the particle size distribution of the incoming materials, a large particle size distribution (that is, a mixture of large particles and small particles with a large particle size difference) will cause a decrease in the production efficiency of the ball mill, and further affect the production progress of the entire granulation process. Summary of the Utility Model
[0004] An embodiment of the utility model provides a granulation material screening and mixing system, aiming to solve the technical problems that in the existing granulation process, uniformly ball milling and fusing the materials affect the qualification rate of the final materials, and the production efficiency of the ball mill is relatively low due to the influence of the particle size distribution.
[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide a granulation material screening and mixing system, including:
[0006] A reaction kettle;
[0007] A screening unit, including a screening machine and a first bin and a second bin communicated with the screening machine. The first bin is used to store the oversize materials, and the second bin is used to store the undersize materials;
[0008] A grinding unit, including a ball mill, a fusion machine, and a third bin arranged in sequence. The ball mill is communicated with the first bin, and the third bin is used to store the materials discharged from the fusion machine;
[0009] A mixer, which is communicated with the second bin and the third bin respectively.
[0010] In a possible implementation manner, the granulation material screening and mixing system further includes a cyclone feeding unit, and the cyclone feeding unit includes:
[0011] The first cyclone is connected between the reactor and the screening machine;
[0012] The second cyclone is connected between the first bin and the ball mill.
[0013] In a possible implementation, there are multiple screening machines, each screening machine corresponds to one first bin, multiple screening machines share one second bin, the screening unit further includes a distribution bin, the distribution bin has multiple discharge funnels, and the multiple discharge funnels are respectively located above the multiple screening machines.
[0014] In a possible implementation, the screening unit further includes a buffer bin connected between the second bin and the mixer.
[0015] In a possible implementation, a first feeding cyclone is provided above each of the buffer bin, the screening machine, and the fusion machine.
[0016] In a possible implementation, the screening unit further includes a first feeding station, and the first feeding station is connected to the first feeding cyclone on the screening machine.
[0017] In a possible implementation, there are multiple fusion machines, the number of the third bins is the same as the number of the fusion machines, and they correspond one by one.
[0018] In a possible implementation, the polishing unit further includes a collecting bin connected to all the third bins, and the collecting bin is used to supply materials to the mixer.
[0019] In a possible implementation, an outlet cyclone and an outlet bin are successively provided at the outlet of the ball mill. An outlet pipe and multiple feeding pipes connected to the outlet pipe are provided on the outlet bin. The multiple feeding pipes are respectively and correspondingly connected to the multiple fusion machines, and a switching valve is provided on each feeding pipe.
[0020] In a possible implementation, a second feeding cyclone is provided at the feeding port of the mixer. The granulating material screening and mixing system further includes a second feeding station, and the second feeding station, the second bin, and the third bin are all connected to the second feeding cyclone.
[0021] In the solution shown in the embodiments of the present application, compared with the prior art, the material generated by the reaction kettle enters the screening machine for screening. The oversize material after screening enters the first bin, and the undersize material enters the second bin. Among them, the particle size in the first bin is relatively large. It is fed into the grinding unit and sequentially processed by a ball mill and a fusion machine and then enters the third bin. The mixer mixes the particles in the second bin and the third bin. In the granulation material screening and mixing system of the present utility model, the ball mill and the fusion machine only grind the particles with larger particle sizes, which can ensure the production efficiency of the ball mill and thus improve the progress of the entire granulation process. Since the large-particle materials are separately processed by the grinding unit, the particle size difference between the particles in the second bin and the third bin can be reduced. As a result, the particle size distribution of the mixed material generated after mixing by the mixer is smaller, and the qualification rate of the final material is improved. Description of the Drawings
[0022] Figure 1 FIG. is a schematic structural diagram of the granulation material screening and mixing system provided by the embodiments of the present utility model.
[0023] Description of the Reference Numerals:
[0024] 10 - Reaction kettle;
[0025] 20 - Screening unit; 21 - Screening machine; 22 - First bin; 23 - Second bin; 24 - Dosing bin; 241 - Discharge funnel; 25 - Buffer bin; 26 - First feeding station;
[0026] 30 - Grinding unit; 31 - Ball mill; 32 - Fusion machine; 33 - Third bin; 34 - Collection bin; 35 - Discharge cyclone; 36 - Discharge bin; 37 - Feed pipe;
[0027] 40 - Mixer; 41 - Second feeding cyclone;
[0028] 50 - First cyclone; 51 - Second cyclone;
[0029] 60 - First feeding cyclone;
[0030] 70 - Second feeding station. Detailed Embodiments
[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0032] In the claims, the description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, when using terms such as "first", "second" or "third", etc., they are used to distinguish different objects rather than to describe a specific order.
[0033] In the claims, the description and the above-mentioned drawings of the present utility model, for the directional terms, unless otherwise clearly defined, when using terms such as "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "center", "lateral", "longitudinal", "horizontal", "vertical", "left", "right", "clockwise", "counterclockwise", "high", "low", etc. to indicate the orientation or position relationship, it is based on the orientation and position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it should not be understood as limiting the specific protection scope of the present utility model.
[0034] In the claims, the description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, when using the terms "fixed connection" or "fixedly connected", it should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-removable fixed connection, removable fixed connection, being integrated as a whole, and being fixed connected through other devices or elements.
[0035] In the claims, the description and the above-mentioned drawings of the present utility model, when using terms such as "comprising", "having" and their variants, are intended to mean "including but not limited to".
[0036] Please refer to Figure 1 , and now the granulation material screening and mixing system provided by the present utility model will be described. The granulation material screening and mixing system includes a reaction kettle 10, a screening unit 20, a grinding unit 30 and a mixer 40. The screening unit 20 includes a screening machine 21 and a first bin 22 and a second bin 23 communicated with the screening machine 21. The first bin 22 is used to store the oversize material, and the second bin 23 is used to store the undersize material; the grinding unit 30 includes a ball mill 31, a fusing machine 32 and a third bin 33 arranged in sequence. The ball mill 31 is communicated with the first bin 22, and the third bin 33 is used to store the material discharged from the fusing machine 32; the mixer 40 is communicated with the second bin 23 and the third bin 33 respectively.
[0037] Optionally, the ball mill 31 can be a grinding machine device of types such as a mechanical mill, a rod mill, a three-roll modifier, etc.; the fusing machine 32 is a general device in the powder industry, that is, the uniformity of the material is achieved through mechanical mixing and then the tapped density of the material is improved. There is no limit here, as long as the production requirements are met.
[0038] The granulation material screening and mixing system provided in this embodiment, compared with the prior art, the material generated by the reaction kettle 10 enters the screening machine 21 for screening. The oversize material after screening enters the first bin 22, and the undersize material enters the second bin 23. Among them, the particle size in the first bin 22 is larger. It is fed into the grinding unit 30 and sequentially passes through the ball mill 31 and the fusion machine 32 for treatment and then enters the third bin 33. The mixer 40 mixes the particles in the second bin 23 and the third bin 33. The ball mill 31 and the fusion machine 32 in the granulation material screening and mixing system of the present utility model only grind the particles with larger particle sizes, which can ensure the production efficiency of the ball mill 31 and thus improve the progress of the entire granulation process. Since the large-particle materials are separately processed by the grinding unit 30, the particle size difference between the particles in the second bin 23 and the third bin 33 can be reduced. Furthermore, the particle size distribution of the mixed material generated after mixing by the mixer 40 is smaller, improving the qualification rate of the final material.
[0039] In some embodiments, an improved implementation manner of the above granulation material screening and mixing system can adopt the structure as shown in Figure 1 . Refer to Figure 1 . The granulation material screening and mixing system further includes a cyclone feeding unit. The cyclone feeding unit includes a first cyclone 50 and a second cyclone 51. The first cyclone 50 is connected between the reaction kettle 10 and the screening machine 21. The second cyclone 51 is connected between the first bin 22 and the ball mill 31. The first cyclone 50 is used to feed the material in the reaction kettle 10 into the screening machine 21, and the second cyclone 51 is used to feed the material in the first bin 22 into the ball mill 31. The first cyclone 50 and the second cyclone 51 can improve the cleanliness of the material during material transfer and ensure the quality of the final product.
[0040] It should be noted that when using the cyclone feeding unit for material transfer, a negative pressure environment needs to be satisfied to achieve material extraction. The negative pressure end can be configured with power sources such as roots blowers and vortex blowers. This technology is common knowledge in this field and will not be elaborated here.
[0041] In some embodiments, an improved implementation manner of the above screening unit 20 can adopt the structure as shown in Figure 1 . Refer to Figure 1 . There are multiple screening machines 21, each screening machine 21 corresponds to a first bin 22, and multiple screening machines 21 share a second bin 23. The screening unit 20 further includes a distribution bin 24. The distribution bin 24 has multiple discharge funnels 241, and the multiple discharge funnels 241 are respectively located above the multiple screening machines 21.
[0042] The first cyclone 50 sends the materials in the reactor 10 to the distribution bin 24. The materials in the distribution bin 24 are discharged into each screening machine 21 through a plurality of discharge funnels 241. The plurality of screening machines 21 work simultaneously to screen the materials, which can meet the screening requirements of a large amount of materials and improve work efficiency. The plurality of first bins 22 are all connected to the second cyclone 51, and the second cyclone 51 pumps the materials in the first bin 22 into the grinding unit 30.
[0043] In some embodiments, an improved implementation manner of the above screening unit 20 can adopt the structure as Figure 1 shown. Refer to Figure 1 . The screening unit 20 further includes a buffer bin 25 connected between the second bin 23 and the mixer 40. The second bin 23 receives the undersize material and discharges it into the buffer bin 25. Since the mixing operation of the mixer 40 has a time limit, by setting the buffer bin 25, the undersize material can be buffered to ensure the continuous screening of the screening machine 21.
[0044] Specifically, a first loading cyclone 60 is provided above each of the buffer bin 25, the screening machine 21, and the fuser 32. The first loading cyclone 60 on the buffer bin 25 is used to pump the materials in the second bin 23 into the buffer bin 25. The first loading cyclone 60 on the screening machine 21 is used to communicate with the first cyclone 50. The first loading cyclone 60 above the fuser 32 is used to pump the materials in the ball mill 31 into the fuser 32.
[0045] In some embodiments, an improved implementation manner of the above screening unit 20 can adopt the structure as Figure 1 shown. Refer to Figure 1 . The screening unit 20 further includes a first feeding station 26, and the first feeding station 26 is connected to the first loading cyclone 60 on the screening machine 21. Since the screening machine 21 needs to receive the materials extracted from the reactor 10 by the first cyclone 50, when the connecting pipe between the first cyclone 50 and the first loading cyclone 60 on the screening machine 21 is damaged or blocked, the materials in the reactor 10 can be directly received and put into the screening machine 21 through the first feeding station 26. Then the first loading cyclone 60 on the screening machine 21 pumps the materials in the first feeding station 26 into the screening machine 21 to ensure the normal operation of the work, and the damaged pipe can also be repaired during the use of the first feeding station 26.
[0046] In some embodiments, an improved implementation manner of the above fuser 32 can adopt the structure as Figure 1 shown. Refer to Figure 1 . There are multiple fusers 32, and the number of the third bins 33 is the same as the number of the fusers 32 and they correspond one by one. The multiple fusers 32 work simultaneously, which can meet the fusion requirements of a large amount of materials and improve production efficiency.
[0047] In some embodiments, an improved implementation of the above-mentioned grinding unit 30 may adopt the structure as shown in Figure 1 . Refer to Figure 1 . The grinding unit 30 further includes a collection bin 34 that is connected to each of the plurality of third bins 33. The collection bin 34 is used to supply materials to the mixer 40. After each fuser 32 finishes working, the materials enter the third bin 33 below it. The collection bin 34 can not only mix the materials in the plurality of third bins 33, but also perform centralized buffering to ensure the continuity of the supply of materials to the mixer 40.
[0048] In some embodiments, a specific connection method between the above-mentioned ball mill 31 and the fuser 32 may adopt the structure as shown in Figure 1 . Refer to Figure 1 . An outlet cyclone 35 and an outlet bin 36 are successively provided at the outlet of the ball mill 31. An outlet pipe and a plurality of supply pipes 37 communicating with the outlet pipe are provided on the outlet bin 36. The plurality of supply pipes 37 are in one-to-one correspondence and communication with the plurality of fusers 32. A switching valve is provided on each supply pipe 37. The materials ground by the ball mill 31 are pumped to the outlet bin 36 through the outlet cyclone 35. The outlet bin 36 is fed through the first feeding cyclone 60 on the fuser 32. The plurality of supply pipes 37 are in one-to-one correspondence and communication with the first feeding cyclones 60 on the plurality of fusers 32. It is convenient to adjust the number of working fusers 32 by adjusting the switching valves on the supply pipes 37. When the processing demand for the materials is small, some fusers 32 can be shut down to reduce production costs.
[0049] In some embodiments, an improved implementation of the above-mentioned granulation material screening and mixing system may adopt the structure as shown in Figure 1 . Refer to Figure 1 . A second feeding cyclone 41 is provided at the feeding port of the mixer 40. The granulation material screening and mixing system further includes a second feeding station 70. The second feeding station 70, the second bin 23, and the third bin 33 are all connected to the second feeding cyclone 41. The mixer 40 is used to mix the materials in the second bin 23 and the third bin 33. When the pipeline between the second bin 23 and the second feeding cyclone 41 and / or the pipeline between the third bin 33 and the second feeding cyclone 41 is damaged or blocked, the materials in the second bin 23 and / or the third bin 33 can be received and fed through the second feeding station 70, thereby ensuring the normal operation of the mixer 40 and the normal progress of the granulation process.
[0050] In the embodiments of the present application, the first cyclone 50, the second cyclone 51, the first feeding cyclone 60, the outlet cyclone 35, and the second feeding cyclone 41 are all cyclone dust collectors. The transfer of materials is realized through the cyclone dust collectors. The centrifugal force generated by the rotating dust-containing air flow can separate the particulate pollutants from the gas.
[0051] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A granulating material screening and mixing system, characterized in that, Comprising: Reaction kettle; Screening unit, including a screening machine and a first bin and a second bin communicated with the screening machine, the first bin is used for storing oversize materials, and the second bin is used for storing undersize materials; Polishing unit, including a ball mill, a fusion machine and a third bin arranged in sequence, the ball mill is communicated with the first bin, and the third bin is used for storing the materials discharged from the fusion machine; Mixing machine, communicated with the second bin and the third bin respectively.
2. The granulation material screening and mixing system according to claim 1, wherein The granulation material screening and mixing system further includes a cyclone feeding unit, and the cyclone feeding unit includes: A first cyclone, communicated between the reaction kettle and the screening machine; A second cyclone, communicated between the first bin and the ball mill.
3. The granulation material screening and mixing system according to claim 1, characterized in that, There are multiple screening machines, each screening machine corresponds to one first bin, and multiple screening machines share one second bin. The screening unit further includes a distribution bin, the distribution bin has multiple discharge funnels, and the multiple discharge funnels are respectively located above the multiple screening machines.
4. The granulation material screening and mixing system according to claim 1, characterized in that, The screening unit further includes a buffer bin communicated between the second bin and the mixing machine.
5. The granulation material screening and mixing system according to claim 4, wherein First feeding cyclones are arranged above the buffer bin, the screening machine and the fusion machine.
6. The granulation material screening and mixing system according to claim 5, characterized in that, The screening unit further includes a first feeding station, and the first feeding station is communicated with the first feeding cyclone on the screening machine.
7. The granulation material screening and mixing system according to claim 1, characterized in that, There are multiple fusion machines, the number of the third bins is the same as the number of the fusion machines and they correspond one by one.
8. The granulation material screening and mixing system according to claim 7, wherein, The polishing unit further includes a collecting bin communicated with multiple third bins, and the collecting bin is used for feeding the mixing machine.
9. The granulation material screening and mixing system according to claim 7, characterized in that, An outlet cyclone and an outlet bin are sequentially arranged at the outlet of the ball mill. An outlet pipe and multiple feeding pipes communicated with the outlet pipe are arranged on the outlet bin, and the multiple feeding pipes are respectively and correspondingly communicated with the multiple fusion machines. A switching valve is arranged on each feeding pipe.
10. The granulation material screening and mixing system according to claim 1, wherein, A second feeding cyclone is arranged at the feeding port of the mixing machine. The granulation material screening and mixing system further includes a second feeding station, and the second feeding station, the second bin and the third bin are all communicated with the second feeding cyclone.