阅读说明：本技术 一种新型球形石墨加工工艺 (Novel spherical graphite processing technology ) 是由 李焱雄 刘军德 李清泉 栾小贺 于 2020-12-29 设计创作，主要内容包括：本发明公开一种新型球形石墨加工工艺,包括：获取生产线出料点的加工料数据,并与预设标准数据进行比较；当所获取的加工料数据达到预设标准数据时,在该出料点设置用于囤积物料的周转仓；当周转仓内囤积物料达到生产线下一设备的最大吃料量时,将周转仓内物料投入下一生产设备继续生产。本申请通过改进传统球形石墨的流水线生产工艺,增加囤积周转步骤,在能够达到球化效果的前提下,减少了不必要的产能浪费,提高了生产效率,减少了磨机对球形石墨的破坏；出产的球形石墨比表面积低；在等待周转仓囤积满一吨料的时间,后半段的粉碎机是停止运转的,节省电费,降低成本20％以上。(The invention discloses a novel spherical graphite processing technology, which comprises the following steps: acquiring processing material data of a discharging point of a production line, and comparing the processing material data with preset standard data; when the acquired processing material data reach preset standard data, a turnover bin for storing materials is arranged at the discharging point; when the materials stocked in the turnover bin reach the maximum feed quantity of the next equipment of the production line, the materials in the turnover bin are put into the next production equipment for continuous production. According to the method, the traditional assembly line production process of the spherical graphite is improved, the stockpiling and turnover steps are added, unnecessary capacity waste is reduced on the premise that the spheroidization effect can be achieved, the production efficiency is improved, and the damage of a mill to the spherical graphite is reduced; the produced spherical graphite has low specific surface area; when waiting for the turnover bin to be fully stocked with one ton of materials, the crusher in the second half section stops operating, so that the electricity cost is saved, and the cost is reduced by more than 20%.)

1. A novel spherical graphite processing technology is characterized by comprising the following steps:

acquiring processing material data of a discharging point of a production line, and comparing the processing material data with preset standard data;

when the acquired processing material data reach preset standard data, a turnover bin for storing materials is arranged at the discharging point;

when the materials stocked in the turnover bin reach the maximum feed quantity of the next equipment of the production line, the materials in the turnover bin are put into the next production equipment for continuous production.

2. The novel spherical graphite processing technology of claim 1, wherein the production line equipment after the turnover bin is suspended until the stocked material in the turnover bin reaches the maximum material consumption of the next equipment.

3. The novel spherical graphite processing technology of claim 1, wherein the method for acquiring the processing material data of the production line discharging point comprises the following steps: and monitoring the processed material data of each discharging point of the production line in real time according to the processing procedure of the materials of the production line.

4. The novel spherical graphite processing technology of claim 1, wherein the processing material data includes particle size, specific surface area and tap, and the standard data includes particle size, specific surface area and tap.

5. The novel spherical graphite processing technology of claim 1, wherein when the acquired processing material data does not reach the preset standard data, the processing time of the equipment is prolonged until the acquired processing material data reaches the preset standard data.

6. The novel spherical graphite processing technology of claim 1, wherein the transfer bin is a mobile transfer bin.

7. The novel spherical graphite processing technology of claim 1, wherein the turnover bin is provided with a connecting port for connecting a production line discharge port and a turnover discharge port for releasing stocked materials.

8. The novel spherical graphite processing technology of claim 1, wherein when the stocked material in the turnover bin does not reach the maximum material consumption of the next equipment in the production line, the equipment is continuously waited for production or parallel processing equipment is added to process the same specification material at the same time.

9. The novel spherical graphite processing technology of claim 1, comprising: putting the graphite raw material into a 80-type pulverizer for coarse crushing, feeding the coarsely crushed graphite into a 60-type pulverizer for continuous coarse crushing, then feeding the coarsely crushed graphite into a 50-type pulverizer for fine crushing, feeding the finely crushed graphite into a 30-type pulverizer for shaping and grading, and feeding the final finished product into a sieving machine for sieving.

10. The process for processing the novel spherical graphite according to claim 9, wherein the classified spherical graphite is subjected to dust removal treatment by a dust remover.

Technical Field

The invention belongs to the technical field of graphite processing, and particularly relates to a novel spherical graphite processing technology.

Background

The spherical graphite material has the characteristics of good conductivity, high crystallinity, low cost, high theoretical lithium intercalation capacity, low and flat charge-discharge potential and the like, is an important part of the current lithium ion battery cathode material, is a replacement product of the cathode material for the production of the lithium ion batteries at home and abroad, and has excellent conductivity and chemical stability, high charge-discharge capacity, long cycle life and environmental protection. The prior spheroidizing production line usually adopts a multi-stage crushing production line connected in sequence as described in CN201610216626.5, but the production line has the problems of low production efficiency and waste of capacity, for example, 1 ton of raw material is input per hour, but only 4 tons of finished products are output per 12 hours, the production schedule is seriously influenced, and raw material resources and processing energy are wasted.

Accordingly, further developments and improvements are still needed in the art.

Disclosure of Invention

In order to solve the above problems, a novel process for processing spherical graphite is proposed. The invention provides the following technical scheme:

a novel spherical graphite processing technology comprises the following steps:

acquiring processing material data of a discharging point of a production line, and comparing the processing material data with preset standard data;

when the acquired processing material data reach preset standard data, a turnover bin for storing materials is arranged at the discharging point;

when the materials stocked in the turnover bin reach the maximum feed quantity of the next equipment of the production line, the materials in the turnover bin are put into the next production equipment for continuous production.

Further, the production line equipment behind the turnover bin is suspended until the stocked materials in the turnover bin reach the maximum material consumption of the next equipment.

Further, the method for acquiring the processing material data of the discharging point of the production line comprises the following steps: and monitoring the processed material data of each discharging point of the production line in real time according to the processing procedure of the materials of the production line.

Further, the processing material data comprise particle size, specific surface area and tap, and the standard data comprise particle size, specific surface area and tap.

Further, when the obtained processing material data does not reach the preset standard data, the processing time of the equipment is prolonged until the obtained processing material data reaches the preset standard data.

Further, the turnover bin is a movable turnover bin.

Furthermore, the turnover bin is provided with a connecting port for connecting a discharge port of the production line and a turnover bin outlet for releasing stocked materials.

Further, when the material stocked in the turnover bin does not reach the maximum material consumption of the next equipment of the production line, the equipment is continuously waited for production or parallel processing equipment is added to process the material with the same specification at the same time.

Further, the method comprises the following steps: putting the graphite raw material into a 80-type pulverizer for coarse crushing, feeding the coarsely crushed graphite into a 60-type pulverizer for continuous coarse crushing, then feeding the coarsely crushed graphite into a 50-type pulverizer for fine crushing, feeding the finely crushed graphite into a 30-type pulverizer for shaping and grading, and feeding the final finished product into a sieving machine for sieving.

Further, the spherical graphite is classified and then subjected to dust removal treatment by a dust remover.

Has the advantages that:

according to the method, the traditional assembly line production process of the spherical graphite is improved, the stockpiling and turnover steps are added, unnecessary capacity waste is reduced on the premise that the spheroidization effect can be achieved, the production efficiency is improved, and the damage of a mill to the spherical graphite is reduced; the produced spherical graphite has low specific surface area; when waiting for the turnover bin to be fully stocked with one ton of materials, the crusher in the second half section is stopped, so that the electricity cost can be saved, and the cost is reduced by more than 20%.

Drawings

FIG. 1 is a schematic structural diagram of a novel spherical graphite processing method according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the following description of the technical solutions of the present invention with reference to the accompanying drawings of the present invention is made clearly and completely, and other similar embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments in the present application shall fall within the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustrating the present invention and not for limiting the present invention.

As shown in fig. 1, a novel process for processing spherical graphite comprises:

s100, obtaining processing material data of a material outlet point of a production line, and comparing the processing material data with preset standard data;

s200, when the obtained processing material data reach preset standard data, a turnover bin for storing materials is arranged at the discharging point;

s300, when the materials accumulated in the turnover bin reach the maximum material consumption of the next equipment of the production line, putting the materials in the turnover bin into the next production equipment for continuous production.

In the production process of the existing graphite spheroidizing production line, because of continuous graded grinding, small particles which do not meet requirements are inevitably generated in the process, and part of the small particles are drawn away along with a draught fan in equipment, the material amount input into next-stage equipment is continuously reduced, for the equipment with fixed material consumption, the material input amount is small, the collision between a processing material and the equipment is increased, and the violent crushing phenomenon is caused, the spheroidization is realized by continuously grinding crystalline flake graphite, the destructiveness of the crushing is large, the crystalline flake graphite is directly damaged, the spheroidization effect cannot be achieved, therefore, the grinding process is required for producing the spherical graphite instead of the crushing process, the material input amount is small, the final qualified product amount is caused indirectly, the capacity is wasted, therefore, by monitoring the processing material data (granularity, proportion table and compaction) of each material output point, if the processing material data reaches the preset standard data, the material at the discharge port is introduced into the turnover bin for accumulation until the accumulation in the turnover bin reaches the maximum feeding amount of the next production equipment, and then the subsequent grinding process is further executed, so that the problems of over-grinding of the material which reaches the standard and insufficient feeding amount of the subsequent equipment are avoided.

Further, the production line equipment behind the turnover bin is suspended until the stocked materials in the turnover bin reach the maximum material consumption of the next equipment. When waiting for the turnover bin to be fully stocked with one ton of materials, the crusher in the second half section stops running, and the production line equipment after the turnover bin is paused can effectively save the electricity charge and reduce the cost by more than 20%.

Further, the method for acquiring the processing material data of the discharging point of the production line comprises the following steps: and monitoring the processed material data of each discharging point of the production line in real time according to the processing procedure of the materials of the production line. Along with the raw materials constantly grinds from the upper reaches to the low reaches in the production line, this in-process can pass through equipment conversion many times, before every conversion, monitors whether the processing result of material discharge gate is up to standard in this equipment, and then judges whether need shift the material that has accomplished the processing target in this equipment, avoids the excessive processing, optimizes process time, promotes the processingquality of each step material.

Further, the processing material data comprise particle size, specific surface area and tap, and the standard data comprise particle size, specific surface area and tap. And detecting the granularity, tap and specific surface area of the processed spherical graphite particles by using a laser particle sizer, a densimeter and a specific surface area meter respectively, thereby obtaining the data of the processed material in the production equipment corresponding to the moment.

Further, when the obtained processing material data does not reach the preset standard data, the processing time of the equipment is prolonged until the obtained processing material data reaches the preset standard data. The spherical graphite with different size standards has different standard data parameters, so that the preset standard data needs to determine specific values according to actual production requirements.

Further, the turnover bin is a movable turnover bin. The bottom of the movable turnover bin is provided with the universal wheel, the self-locking device is arranged on the universal wheel, excessive sliding caused by external force touch is avoided, and the position of the turnover bin is conveniently and flexibly adjusted through the movable turnover bin, so that the turnover bins of different procedures can be shared, the number of the turnover bin is effectively reduced, and the production cost of an enterprise is reduced. Generally, the number of the turnover bins on one production line is 1.

Furthermore, the turnover bin is provided with a connecting port for connecting a discharge port of the production line and a turnover bin outlet for releasing stocked materials. The turnover bin structure is based on the structural design of the crusher on the production line, and the materials are conveniently directly led into the turnover bin from the crusher or directly led into the crusher on the production line from the materials accumulated in the turnover bin.

Further, when the material stocked in the turnover bin does not reach the maximum material consumption of the next equipment of the production line, the equipment is continuously waited for production or parallel processing equipment is added to process the material with the same specification at the same time. Different processes of the spherical graphite production line are subdivided, and the reserved full-load input amount is executed on each device, so that unnecessary capacity waste is reduced on the premise that the spheroidization effect can be achieved, the production efficiency is improved, and the damage of a mill to the spherical graphite is reduced.

Further, the method comprises the following steps: putting the graphite raw material into a 80-type pulverizer for coarse crushing, feeding the coarsely crushed graphite into a 60-type pulverizer for continuous coarse crushing, then feeding the coarsely crushed graphite into a 50-type pulverizer for fine crushing, feeding the finely crushed graphite into a 30-type pulverizer for shaping and grading, and feeding the final finished product into a sieving machine for sieving. The specific process is as follows: the method comprises the steps of directly putting flake graphite into a production feeding bin from a unpacking station by using a negative pressure pipeline, enabling raw materials to enter an 80-type crushing main machine from the production bin for coarse crushing, enabling the 80-type crusher to be free of an upper classifier, enabling the main machine to be connected with a dust remover, enabling the coarse crushed graphite to enter a 60-type crusher for continuous coarse crushing, enabling the 60-type crusher to be provided with an upper classifier, enabling the upper classifier to be connected with the dust remover, enabling the graphite to enter a 50-type crusher for fine crushing, enabling the 50-type crusher to be also provided with an upper classifier and a dust remover, enabling a negative pressure collecting bin to be arranged between the 50-type crusher and the 30-type crusher, enabling the negative pressure collecting bin to collect finely crushed graphite, enabling the collecting bin to discharge when the metering position of a liquid level meter is reached, enabling the material to enter the 50-type crusher at the rear end for continuous fine crushing, enabling the finely crushed graphite to enter the 30-type crusher for shaping and, returning the oversize to the production feeding bin, and using the undersize material as the spherical graphite finished product.

Further, the spherical graphite is classified and then subjected to dust removal treatment by a dust remover. The production process is dedusted by the deduster, so that the quality and stability of the product are improved.

Examples

The production line is supposed to be composed of 7 60 machines, 8 50 machines and 6 30 machines, wherein the 60 machines comprise 1-7 No. 60 crushers, the 50 machines comprise 1-8 No. 50 crushers, the 30 machines comprise 1-6 No. 30 crushers, the graphite materials are classified through the 7 machines 60, 8 machines 50 and 6 machines 30 in sequence, and then are finely crushed, spheroidized and classified to obtain finished products.

Blank test and improved experiment are respectively set:

in the blank room test, the whole production line works uninterruptedly, one ton of raw materials is put in every hour, the raw materials are consumed by 60% from the production to the middle section, the processing is continued until the whole production flow is completed, and finally the yield of 4 tons of finished products produced in every 12 hours is obtained.

In an improved experiment, real-time monitoring is carried out on discharge points behind each crusher respectively, sampling detection is carried out when raw materials are processed to the discharge points, the maximum feed consumption of the crushers is one ton, a turnover bin is arranged behind the No. 6 crusher if the No. 6 crusher reaches a preset standard, meanwhile, the crushers behind the turnover bin are powered off, after the turnover bin accumulates one ton of materials, the crushers continue to be put into the No. 7 crusher for production and processing, and the like, until all the materials are fully loaded, the crushers pass through the stages of crushers in sequence, and the purpose of reducing the proportion table to the maximum extent is achieved. The reason for reducing the specific surface area by the segmented production method is as follows: the spherical graphite is generally produced by a single machine method at the early stage in the processing process, the specific surface area is low, the capacity is continuously increased along with the consideration of the cost at the later stage, the machine type is changed from 30 machines to 50 machines, even 60 machines and 80 machines are used as main equipment for processing, the larger the machine type is, the stronger the crushing capacity is, the larger the crushing granularity of the flake graphite is, the crushing is also serious, the more surface cracks are, and the specific surface is naturally increased; on the other hand, the production line is an integral flow production line, although labor is saved, the production of single equipment is actually reduced, originally, each equipment can feed 1000 kilograms of products in one hour, 20 equipment is 20 tons, and finished products can be produced for 8 tons/12 hours under the condition of grinding for 20 times according to the current yield of 40 percent, but the capacity of a single production line of products with high density in 12 hours is only 4-5 tons in general conditions, and is reduced by one time; in the process of on-line production, the swallowing amount of the next device per hour is gradually reduced, the material is less and is over-crushed in the host, once the over-crushing occurs, the capacity is reduced, the yield is reduced, and the specific surface area is also increased. The actual throughput of each device is kept to a certain extent by adopting segmented production, the friction among materials is increased to the maximum extent, and the surface smoothness reduction ratio table is improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

The present invention has been described in detail, and it should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.