WO2024051265A1 - 铝电解石油焦自动精准配料系统及方法 - Google Patents

铝电解石油焦自动精准配料系统及方法 Download PDF

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Publication number
WO2024051265A1
WO2024051265A1 PCT/CN2023/101238 CN2023101238W WO2024051265A1 WO 2024051265 A1 WO2024051265 A1 WO 2024051265A1 CN 2023101238 W CN2023101238 W CN 2023101238W WO 2024051265 A1 WO2024051265 A1 WO 2024051265A1
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Prior art keywords
petroleum coke
automatic
storage bin
automatically
real
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PCT/CN2023/101238
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English (en)
French (fr)
Inventor
张雷
肖述兵
马得胜
祁卫安
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青海黄河上游水电开发有限责任公司
国家电投集团黄河上游水电开发有限责任公司
黄河鑫业有限公司
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Publication of WO2024051265A1 publication Critical patent/WO2024051265A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/60—Mixing solids with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/714—Feed mechanisms for feeding predetermined amounts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
    • B01F35/881—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise by weighing, e.g. with automatic discharge

Definitions

  • the invention relates to the field of metallurgical technology, and in particular to an aluminum electrolytic petroleum coke automatic and precise batching system and method.
  • calcined petroleum coke is an important factor influencing the development of carbon materials for aluminum.
  • the production of aluminum electrolytic carbon is closely related to various properties such as petroleum coke volume density, particle size, CO 2 and air reactivity, strength, true density, linear expansion coefficient, ash content, sulfur content, etc.
  • the various characteristic indicators of petroleum coke vary widely, depending on the quality and particle size of the petroleum coke. The variation within the same particle size range is also large, so the mixing of petroleum coke requires high precision.
  • the petroleum coke ingredients in actual production are mainly sulfur.
  • the petroleum coke mixing ratio is issued to the raw material warehouse, and the overhead crane operation Personnel batches ingredients based on the mixing ratio, and the batching amount is estimated based on the grab bucket capacity.
  • the batching accuracy is poor and is greatly affected by human factors.
  • the mixing of various types of petroleum coke is inaccurate, causing the powder specific resistance, true specific gravity and other indicators of the calcined coke to be unstable.
  • the object of the present invention is to provide an automatic and accurate batching system for aluminum electrolytic petroleum coke.
  • the batching system can be networked with inspection data and warehouse inventory data, and automatically calculate the required petroleum coke indicators (various trace elements) based on the petroleum coke composition and inventory. proportion) and quantity, and then transmit the data to the grab crane (unmanned driving) receiving station through radio.
  • the receiving station transmits the instructions to the PLC system of the crane.
  • the grab crane transfers different origins and batches to each other.
  • Raw materials of different warehouse numbers are captured into different funnels, and are fed in proportion through a quantitative feeder (electronic belt scale) to achieve petroleum coke mixing, thereby obtaining an ideal mixed petroleum coke and achieving precise batching. This effectively avoids the influence of human factors during daily operations and further improves product quality.
  • An automatic and precise batching system for aluminum electrolytic petroleum coke includes:
  • the MES system is used to automatically obtain the first data in each storage bin, automatically calculate and optimize the ingredient formula based on the first data, and send the optimal formula instructions to the grab crane.
  • the data is petroleum coke composition and inventory data;
  • the grab crane is used to automatically select the storage bin according to the optimal formula instructions and automatically grab the petroleum coke raw material from it and transport it to the intermediate hopper;
  • the electronic belt scale is used to weigh the blanked materials in the intermediate hopper in real time, and transfer the blanked materials to the automatic mixing mechanism at a specific transmission speed based on the weighing results for mixing, thereby completing automatic and precise batching of petroleum coke.
  • the electronic belt scale is also used to feed back the weighing results to the MES system in real time; the MES system is also used to compare the real-time weighing results with the optimal formula instructions and perform real-time correction. , until the real-time weighing result of the electronic belt scale is consistent with the optimal formula instruction;
  • the MES system is also used to send real-time correction instructions to perform frequency conversion control on the material transport speed of the electronic belt scale to ensure that each material can be transported to the automatic mixing mechanism with a specific feeding amount within a unit time.
  • RFID electronic tags are provided in each storage bin
  • the MES system obtains real-time data information on the petroleum coke composition and inventory level in each storage bin through RFID electronic tags.
  • the grab crane includes a large and small trolley traveling mechanism, a grab bucket, a PLC controller and an RFID reader;
  • the MES system is used to send recipe instructions to the PLC controller, and the RFID reader passes By reading the electronic tag information in the storage bin, the storage bin is automatically selected; then the PLC controller controls the large and small vehicle traveling mechanism to automatically walk to the selected storage bin and controls the grab The hopper automatically grabs the petroleum coke raw materials and transports them to the intermediate hopper.
  • the electronic belt scale includes a weighing module, a conveyor belt, a drive motor, a speed measurement module, and a frequency converter to realize automatic PID adjustment according to the real-time correction instructions during the process of transporting materials.
  • the intermediate hopper is arranged on the side of the storage bin in a one-to-one or multiple-to-one format.
  • the intermediate hopper is arranged in a funnel shape and has a discharge port at the bottom.
  • the discharge port is arranged directly above the electronic belt scale and is sealingly connected with the electronic belt scale.
  • the invention also provides an automatic and precise batching method of aluminum electrolytic petroleum coke, which method includes:
  • the MES system is used to automatically obtain the first data in each storage bin, and the ingredients formula is automatically calculated and optimized based on the first data, and the optimal formula instructions are sent to the grab crane.
  • the first data is Petroleum coke composition and inventory data;
  • the grab crane automatically selects the storage bin according to the optimal formula instruction and automatically grabs the petroleum coke raw material from it and transports it to the intermediate hopper;
  • the electronic belt scale is used to weigh the weight of the blanking material in the intermediate hopper in real time, and based on the weighing result, the blanking material is transferred to the automatic mixing mechanism for mixing at a specific transmission speed, thus completing the automatic and precise batching of petroleum coke.
  • the method of using an electronic belt scale to measure the weight of the blanking material in the intermediate hopper in real time, and transferring the blanking material to the automatic mixing mechanism at a specific transmission speed based on the weighing results for mixing includes:
  • the electronic belt scale feeds back the weighing results to the MES system in real time;
  • the MES system compares the real-time weighing results with the optimal formula instructions and performs real-time corrections. deviation until the real-time weighing result of the electronic belt scale is consistent with the optimal formula instruction;
  • the MES system sends real-time correction instructions to perform frequency conversion control on the material transport speed of the electronic belt scale to ensure that each material can be transported to the automatic mixing mechanism with a specific feeding amount within a unit time.
  • the use of the MES system to automatically obtain the first data in each storage bin includes:
  • RFID electronic tags are installed in each storage bin
  • the MES system obtains real-time data information on the petroleum coke composition and inventory level in each storage bin through RFID electronic tags.
  • the grab crane automatically selects the storage bin according to the optimal formula instruction and automatically grabs the petroleum coke raw material from it and transports it to the intermediate hopper, including:
  • a large and small trolley traveling mechanism, a grab bucket, a PLC controller and an RFID reader are installed in the grab crane;
  • the MES system sends recipe instructions to the PLC controller, and the RFID reader automatically selects the storage bin by reading the electronic tag information in the storage bin; and then the PLC controller controls the size
  • the traveling mechanism of the vehicle automatically travels to the selected storage bin and controls the grab to automatically grab the petroleum coke raw materials and transport them to the intermediate hopper.
  • the aluminum electrolytic petroleum coke automatic and precise batching system and method of the present invention is provided with a number of storage bins for storing petroleum coke raw materials with different compositions and contents; and is used to automatically obtain the petroleum coke composition and inventory data in each storage bin. And based on these petroleum coke composition and inventory data, it automatically calculates and optimizes the ingredients formula, and sends the optimal formula instructions to the MES system of the grab crane; it is used to automatically select the storage bin according to the calculated optimal formula instructions and from them.
  • the grab crane automatically grabs the petroleum coke raw materials and transports them to the intermediate hopper, and is used to weigh the falling material in the intermediate hopper in real time, and according to the weighing results,
  • the specific conveying speed transfers the blanking material to the electronic belt scale for mixing by the automatic mixing mechanism.
  • the aluminum electrolytic petroleum coke automatic and precise batching system and method of the present invention feeds back the weighing results of the electronic belt scale to the MES system in real time; and then the MES system compares the real-time weighing results with the optimal formula instructions and performs real-time correction. Until the real-time weighing results are consistent with the optimal formula instructions; at the same time, the real-time correction instructions are sent to the electronic belt scale to perform frequency conversion control on the conveying speed of the belt, and then through real-time regulation of the belt running speed, ensure that each material can A specific feeding amount is delivered to the automatic mixing mechanism within a unit time, thereby further ensuring precise control of material mixing.
  • Figure 1 is a schematic diagram of the overall structure of the aluminum electrolytic petroleum coke automatic and precise batching system of the present invention
  • the present invention discloses an automatic and precise batching system for aluminum electrolytic petroleum coke. Please refer to Figure 1.
  • the system includes a number of storage bins 2 for respectively storing petroleum coke raw materials with different compositions; It is used to automatically obtain the first data 1 in each storage bin 2 (the first data specifically refers to the composition and inventory data of petroleum coke), and automatically calculate and optimize the ingredients based on the petroleum coke composition and inventory data.
  • the present invention realizes the full automatic control of petroleum coke mixing, which not only reduces the labor intensity of operators, improves labor efficiency, and reduces labor costs, but also significantly improves the batching accuracy of materials, effectively solving the problem of daily operations.
  • Technical problems that have a large impact on human factors have effectively improved product quality.
  • the electronic belt scale 4 provided in the system can also be used to feed back the weighing results to the MES system 7 in real time, and then the MES system 7 compares the real-time weighing results with the aforementioned optimal formula instructions, and uses multiple methods based on the comparison results.
  • the variable data coupling model is used for real-time correction; at the same time, the MES system 7 can also send the correction results to the electronic belt scale 4 in real time through correction instructions to realize frequency conversion control of the transport speed of the electronic belt scale 4, and then control the belt operation
  • the real-time speed control controls the feeding amount of specific materials delivered to the automatic mixing mechanism to remain constant per unit time, thereby achieving precise control of the material feeding amount.
  • the aforementioned real-time correction process will be repeated until the real-time weighing result of the electronic belt scale 4 is consistent with the value of the optimal formula instruction, thus ensuring that each material can be fed at a specific amount per unit time. It is transported to the automatic mixing mechanism, which realizes the automatic and precise batching of aluminum electrolytic granules, and then realizes the accurate mixing of the key indicators S of the mixing formula and the trace elements Ca, Fe, and Na, to further ensure or even improve product quality. Technical effects, extending the service life of the calcining equipment and achieving stable final products.
  • the electronic belt scale 4 in the present invention specifically includes a weighing module for real-time weighing of materials received in the intermediate hopper 3, a conveyor belt for realizing real-time frequency conversion transmission of materials, a frequency converter and a drive motor.
  • Speed measurement module for real-time monitoring of belt running speed, etc.
  • PID Proportional Integral Derivative, Proportional Integral Derivative, Proportional Integral Derivative
  • the present invention uses RFID identification technology (Radio Frequency Identification, referred to as RFID, radio frequency identification technology), in each storage bin 2.
  • RFID Radio Frequency Identification
  • Each storage bin 2 is equipped with RFID electronic tags; so that the MES system 7 can obtain the ingredient information and inventory information in the bin in real time by identifying the electronic tags in each storage bin 2.
  • the detection is completed after the petroleum coke raw materials are unloaded into different storage bins 2.
  • the production unit inputs the requirements in the MES system 7 according to the production needs; MES Because the system is equipped with a multi-variable automatic coupling model with data storage and analysis functions, it can automatically calculate the recipe and automatically select the optimal solution; at the same time, the optimal solution will be selected and the command will be transmitted to the grab sky through the wireless base station 5.
  • the automatic process in which the grab crane 6 automatically selects the storage silo 2 according to the optimal formula instructions and automatically grabs the petroleum coke raw materials and transports them to the intermediate hopper 3 can be achieved by setting up a large and small car traveling mechanism and a grab system in the grab crane 6.
  • the recipe instructions sent by the MES system 7 will be transmitted to the PLC controller on the grab crane.
  • the RFID reader on the grab crane reads
  • the storage bin 2 can be automatically selected; then the PLC (Programmable Logic Controller, PLC, programmable logic controller) controller controls the large and small vehicle traveling mechanism to automatically move to the selected storage bin.
  • the grab is then operated to automatically grab the petroleum coke raw materials and transport them to the intermediate hopper 3.
  • the intermediate hoppers 3 can be arranged in each storage bin 2 in a one-to-one or many-to-one manner. side to facilitate the grabbing function of the grab.
  • the intermediate hopper 3 is preferably arranged in a funnel shape, and is provided with a discharge opening at the bottom. The discharge opening is provided directly above the electronic belt scale 4 and is sealedly connected thereto. This ensures that material loss can be effectively avoided during the blanking process, so that all materials falling onto the electronic belt scale 4 can be accurately measured.
  • the transmission belt on the electronic belt scale 4 can also be equipped with a skirt belt, which can also achieve the technical effect of reducing the material slipping from both ends of the belt during operation, further ensuring the accuracy of ingredients.
  • the MES system 7, grab crane 6, electronic belt scale 4 and storage bin 2 in the present invention are all connected through radio signals transmitted by the wireless base station 5.
  • the wireless base station 5 in the present invention is preferably installed in the storage bin 2 and next to the MES system 7 .
  • each storage bin 2 is equipped with an RFID electronic tag
  • the MES system 7 can use the tag information to The material composition information and inventory data in each storage bin 2 are automatically obtained, and then the staff can enter the corresponding demand information in the MES system 7 based on the actual production needs, and the system will 2’s material composition and inventory data automatically calculates the formula and selects the best ingredient plan, and transmits the plan to the grab crane 6 through the wireless network; then the grab crane 6 uses RFID positioning according to the received recipe instructions.
  • the recognition technology automatically drives to the corresponding storage bin 2, and controls the grab to automatically grab the materials and transfer them to the intermediate hopper 3.
  • the intermediate hopper 3 Since the intermediate hopper 3 is set in a funnel shape, the materials in the hopper will fall to the electronic belt scale through the bottom discharge port. 4, after the electronic belt scale 4 automatically weighs, the real-time weighing result is fed back to the MES system 7 to compare with the optimal formula instruction. If it is found after comparison that the real-time weighing result of the electronic belt scale 4 is less than the value of the formula instruction, this A correction signal will be sent to the electronic belt scale 4 to increase the material transport speed to ensure that the quality of the material transported to the mixing mechanism per unit time can still be transported to the mixing mechanism with the predetermined feeding amount. combination, thereby further ensuring the precise amount of each given material when mixing, ensuring the accuracy of ingredients.
  • the MES system 7 compares the real-time weighing result with the optimal formula instruction and finds that the real-time weighing result of the electronic belt scale 4 is greater than the value of the formula instruction, it will send a correction instruction to control the electronic belt scale 4 to appropriately reduce the material transportation Speed, in the same way, can also ensure the accurate mixing amount of the material per unit time. Ultimately, accurate mixing of each material is achieved.
  • the aluminum electrolytic petroleum coke automatic and precise batching system and method of the present invention are provided with a number of storage bins for storing petroleum coke raw materials with different compositions; and are used to automatically obtain the petroleum coke components in each storage bin. and inventory data, and automatically calculate and optimize the ingredient formula based on these petroleum coke composition and inventory data, and at the same time send the optimal formula instructions to the MES system of the grab crane; used to automatically select according to the calculated optimal formula instructions
  • the grab crane that stores the petroleum coke raw materials in the silo and transports it to the intermediate hopper automatically and weighs the blanked materials in the intermediate hopper in real time, and transfers the blanked materials to the automatic hopper at a specific transmission speed based on the weighing results Electronic belt scale for mixing with mixing mechanism.
  • the present invention realizes the full automatic control of petroleum coke mixing, which not only reduces the labor intensity of operators, improves labor efficiency, and reduces labor costs, but also significantly improves the batching accuracy of materials, effectively solving daily operations Technical problems that are greatly affected by human factors have effectively improved product quality.
  • the system also feeds back the weighing results of the electronic belt scale to the MES system in real time; then the MES system compares the real-time weighing results with the optimal formula instructions and performs real-time correction until the real-time weighing results are consistent with the optimal formula.
  • the instructions are consistent; at the same time, the real-time correction instructions are sent to the electronic belt scale to perform frequency conversion control on the conveying speed of the belt. This ensures that each material can be fed at a specific rate per unit time through real-time regulation of the belt running speed.
  • the amount is transferred to the automatic mixing mechanism to further ensure precise control of material mixing.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

本发明公开一种铝电解石油焦自动精准配料系统及方法,该系统设有用于存放不同成分含量石油焦原料的若干存料仓；用于自动获取仓中原料成分及库存量，并依据这些成分和库存量数据自动计算并优选配料配方，将最优配方指令发送至抓斗天车的MES系统；用于依照最优配方指令自动选取存料仓并抓取原料输送至中间料斗的抓斗天车以及用于对中间料斗中的落料实时称重，并依据称重结果按照特定的传送速度将落料传输至自动混料机构的电子皮带称。本发明实现了石油焦混配的全程自动化操控，不仅降低了劳动强度、提高了劳动效率、降低了人工成本，而且明显提高了物料的配料精度，有效解决了日常作业受人为因素影响大的技术难题，从而提升了产品质量。

Description

铝电解石油焦自动精准配料系统及方法 技术领域
本发明涉及冶金技术领域，尤其涉及一种铝电解石油焦自动精准配料系统及方法。
背景技术
煅后石油焦作为铝用炭素材料生产的主要原料之一，是铝用炭素发展的重要影响因素。铝电解炭素生产与石油焦体积密度、粒度、CO2和空气反应性、强度、真密度、线膨胀系数、灰分、硫份等各种特性息息相关。石油焦的各个特性指标变化范围较大，依石油焦品质、粒度不同而变化，同一粒度范围内变化也很大，因此对石油焦的混配要求精度高。但实际生产中石油焦配料以硫份为主，通过工艺技术人员简单硫份计算，兼顾矾、镍、钠、钙、镁等微量元素指标后向原料库下达石油焦混配配比，天车操作人员依据混配比配料，配料量按照抓斗容量估算，配料精度差，受人为因素的影响较大。各类石油焦混配不准确，造成煅后焦的粉末比电阻、真比重等指标不稳定。
有鉴于此，急需提供一种铝电解石油焦自动精准配料系统，以解决上述问题。
发明内容
本发明的目的在于提供一种铝电解石油焦自动精准配料系统，该配料系统可实现与检验数据、仓储库存数据联网，依据石油焦成分、库存量自动计算需要的石油焦指标(各种微量元素的占比)和数量，然后将数据通过无线电传输到抓斗天车(无人驾驶)接收站，接收站将指令传输到天车的PLC系统，最后抓斗天车将不同产地、不同批次、不同仓号的原料抓入不同的漏斗，通过定量给料机(电子皮带秤)按比例下料，实现石油焦混配，从而得到了理想的混合石油焦，实现精确配料。进而有效避免了日常作业时受人为因素的影响，进一步提高了产品质量。
为实现上述目的，本发明提供如下技术方案：
一种铝电解石油焦自动精准配料系统，所述系统包括：
若干存料仓，用于分别存放不同成分含量的石油焦原料；
MES系统，用于自动获取每个所述存料仓中的第一数据，并依据所述第一数据自动计算并优选配料配方，将最优配方指令发送至抓斗天车，所述第一数据为石油焦成分及库存量数据；
抓斗天车，用于依照所述最优配方指令自动选取存料仓并从中自动抓取石油焦原料输送至中间料斗；
电子皮带称，用于对所述中间料斗中的落料实时称重，并依据称重结果以特定的传送速度将落料传输至自动混料机构混合，从而完成石油焦自动精准配料。
作为本发明的进一步改进，所述电子皮带秤还用于将称重结果实时反馈至MES系统；所述MES系统还用于将实时称重结果与所述最优配方指令相比较并进行实时纠偏，直到所述电子皮带秤的实时称重结果与所述最优配方指令相一致；
所述MES系统还用于发送实时纠偏指令对所述电子皮带秤的运料速度进行变频控制，以确保每种物料能够在单位时间内以特定的给料量输送至自动混料机构。
作为本发明的进一步改进，在每个所述存料仓中均设置RFID电子标签；
所述MES系统通过RFID电子标签获取每个所述存料仓中石油焦成分及库存量的实时数据信息。
作为本发明的进一步改进，所述抓斗天车包括大小车行走机构、抓斗、PLC控制器以及RFID阅读器；
所述MES系统用于发送配方指令到所述PLC控制器，所述RFID阅读器通 过读取所述存料仓中的电子标签信息，自动选取存料仓；而后由所述PLC控制器操纵所述大小车行走机构自动行走至选取到的所述存料仓并操纵所述抓斗自动抓取石油焦原料输送至中间料斗。
作为本发明的进一步改进，所述电子皮带秤包括称重模块、传送皮带、驱动电机、测速模块、以及变频器，以实现传输物料的过程中根据所述实时纠偏指令进行PID自动调节。
作为本发明的进一步改进，所述中间料斗以一对一或多对一的形式设置在所述存料仓的侧方，所述中间料斗呈漏斗形设置，底部设有放料口，所述放料口设置于所述电子皮带秤的正上方，并与所述电子皮带秤密封连接。
本发明还提供了一种铝电解石油焦自动精准配料方法，所述方法包括：
将不同成分含量的石油焦原料分别存放于不同的存料仓内；
利用MES系统自动获取每个所述存料仓中的第一数据，并依据所述第一数据自动计算并优选配料配方，将最优配方指令发送至抓斗天车，所述第一数据为石油焦成分及库存量数据；
所述抓斗天车依照所述最优配方指令自动选取存料仓并从中自动抓取石油焦原料输送至中间料斗；
利用电子皮带称实时称取中间料斗中的落料重量，并依据称重结果以特定的传送速度将落料传输至自动混料机构混合，从而完成石油焦自动精准配料。
作为本发明的进一步改进，所述利用电子皮带称实时称取中间料斗中的落料重量，并依据称重结果以特定的传送速度将落料传输至自动混料机构混合包括：
所述电子皮带秤将称重结果实时反馈至MES系统；
所述MES系统将实时称重结果与所述最优配方指令相比较并进行实时纠 偏，直到所述电子皮带秤的实时称重结果与所述最优配方指令相一致；
所述MES系统发送实时纠偏指令对所述电子皮带秤的运料速度进行变频控制，以确保每种物料能够在单位时间内以特定的给料量输送至自动混料机构。
作为本发明的进一步改进，所述利用MES系统自动获取每个所述存料仓中的第一数据包括：
在每个所述存料仓中均设置RFID电子标签；
所述MES系统通过RFID电子标签获取每个所述存料仓中石油焦成分及库存量的实时数据信息。
作为本发明的进一步改进，所述抓斗天车依照所述最优配方指令自动选取存料仓并从中自动抓取石油焦原料输送至中间料斗包括：
在所述抓斗天车内设置大小车行走机构、抓斗、PLC控制器以及RFID阅读器；
所述MES系统发送配方指令到所述PLC控制器，所述RFID阅读器通过读取所述存料仓中的电子标签信息，自动选取存料仓；而后由所述PLC控制器操纵所述大小车行走机构自动行走至选取到的所述存料仓并操纵所述抓斗自动抓取石油焦原料输送至中间料斗。
本发明的技术效果和优点：
本发明的铝电解石油焦自动精准配料系统及方法，设置有用于分别存放不同成分含量石油焦原料的若干存料仓；用于自动获取每个存料仓中的石油焦成分及库存量数据，并依据这些石油焦成分和库存量数据自动计算并优选配料配方，同时将最优配方指令发送至抓斗天车的MES系统；用于依照计算出的最优配方指令自动选取存料仓并从中自动抓取石油焦原料输送至中间料斗的抓斗天车以及用于对中间料斗中的落料实时称重，并依据称重结果按照 特定的传送速度将落料传输至自动混料机构混合的电子皮带称。通过以上方式，本发明实现了石油焦混配的全程自动化操控，不仅降低了操作工人的劳动强度、提高了劳动效率、降低了人工成本，而且明显提高了物料的配料精度，有效解决了日常作业受人为因素影响大的技术难题，从而有效提升了产品质量。
本发明的铝电解石油焦自动精准配料系统及方法，通过将电子皮带秤的称重结果实时反馈至MES系统；而后由MES系统将实时称重结果与最优配方指令相比较并进行实时纠偏，直到实时称重结果与最优配方指令相一致；同时，将实时纠偏指令发送至电子皮带秤对皮带的运料速度进行变频控制，进而通过对皮带运行速度的实时调控，确保了每种物料能够在单位时间内以特定的给料量输送至自动混料机构，从而进一步确保物料混配的精准控制。
本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在说明书、权利要求书以及附图中所指出的结构来实现和获得。
附图说明
图1为本发明的铝电解石油焦自动精准配料系统的整体结构示意图；
附图标记
1、第一数据；2、存料仓；3、中间料斗；4、电子皮带秤；5、无线基站；6、抓斗天车；7、MES系统。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
为解决现有技术的不足，本发明公开了一种铝电解石油焦自动精准配料系统，请参阅图1所示，该系统包括用于分别存放不同成分含量石油焦原料的若干存料仓2；用于自动获取每个存料仓2中的第一数据1(该第一数据具体指的是石油焦的成分及库存量数据)，并依据该石油焦成分和库存量数据自动计算并优选配料配方，同时将最优配方指令发送至抓斗天车6的MES(Manufacturing Execution System)系统7；用于依照计算出的最优配方指令自动选取存料仓2并从中自动抓取石油焦原料输送至中间料斗3的抓斗天车6以及用于对中间料斗3中的落料实时称重，并依据称重结果按照特定的传送速度将落料传输至自动混料机构混合的电子皮带称4。如此设置，本发明实现了石油焦混配的全程自动化操控，不仅降低了操作工人的劳动强度、提高了劳动效率、降低了人工成本，而且明显提高了物料的配料精度，有效解决了日常作业受人为因素影响大的技术难题，从而有效提升了产品质量。
进一步的，该系统中设置的电子皮带称4还可用于将称重结果实时反馈至MES系统7，而后由MES系统7将实时称重结果与前述最优配方指令相比较，根据比较结果通过多变量数据耦合模型进行实时纠偏；与此同时，该MES系统7还能够将纠偏结果通过纠偏指令实时发送至电子皮带秤4，实现对电子皮带秤4运料速度的变频控制，进而通过对皮带运行速度的实时调控，控制单位时间内输送至自动混料机构的特定物料的给料量保持恒定，从而实现物料给料量的精准控制。与此同时，前述的实时纠偏过程会反复进行，直至电子皮带称4的实时称重结果与最优配方指令的数值相一致，从而确保了每种物料能够在单位时间内以特定的给料量被输送至自动混料机构，实现了铝电解颗粒料的自动精准配料，进而实现了对混料配方关键指标S、微量元素Ca、Fe、Na的准确混配，达到进一步确保甚至提升产品质量的技术效果，并延长煅烧设备使用寿命，取得稳定的最终产品。
具体的，本发明中的电子皮带秤4具体包括有用于对中间料斗3中承接的物料进行实时称重的称重模块、用于实现物料实时变频传送的传送皮带、变频器以及驱动电机、用于实时监控皮带运行速度的测速模块等。以实现物料能够在传输至混料机构的过程中根据实时纠偏指令进行PID(Proportional Integral Derivative，比例积分微分)自动调节。
进一步的，为实现前述MES系统7自动获取每个存料仓2中石油焦成分及库存量数据1的自动化过程，本发明利用RFID识别技术(Radio Frequency Identification，简称RFID，射频识别技术)，在每个存料仓2中均设置了RFID电子标签；使得MES系统7通过识别各存料仓2中的电子标签即可实时获取仓中的成分信息及库存量信息。
具体的，对于每个存料仓2中的物料成分含量数据，在石油焦原料卸入不同的存料仓2后便已检测完成，生产单位依据生产需求，在MES系统7中输入需求；MES系统中因设置了具有数据存储分析功能的多变量自动耦合模型，因此可以实现自动计算配方，并自动选择最优方案；同时将优选出的最优方案通过无线基站5将命令传送给抓斗天车6。而抓斗天车6依照最优配方指令自动选取存料仓2并从中自动抓取石油焦原料输送至中间料斗3的自动化过程则可以通过在抓斗天车6内设置大小车行走机构、抓斗、PLC控制器以及RFID阅读器等来实现，具体的，MES系统7发送的配方指令将被传送给抓斗天车上的PLC控制器，此外，抓斗天车上的RFID阅读器通过读取存料仓2中的电子标签信息，能够自动选取存料仓2；而后由PLC(Programmable Logic Controller，简称PLC，可编程逻辑控制器)控制器操纵大小车行走机构自动行走至选取到的存料仓2旁，随后操纵抓斗自动抓取石油焦原料输送至中间料斗3。
进一步的，中间料斗3可以以一对一或者多对一的形式设置在各存料仓2 的侧方，以方便抓斗实施抓取功能。此外，中间料斗3优选呈漏斗形设置，且底部设有放料口，该放料口设置于电子皮带秤4的正上方，并与其密封连接。以确保在落料的过程中能有效避免物料的损失，使下落至电子皮带秤4上的物料都能够被准确计量。另外，电子皮带秤4上的传输皮带也可选用裙边皮带，同样能够起到减免物料运行过程中从皮带两端滑落的技术效果，进一步确保配料的精确性。
具体的，本发明中的MES系统7、抓斗天车6、电子皮带秤4以及存料仓2等均通过无线基站5发射的无线电信号实现的信号连接，相应的，为确保信号的传输稳定性，本发明中的无线基站5优选设置在存料仓2内和MES系统7旁。
下面对本发明中的铝电解石油焦自动精准配料系统的生产过程进行具体说明：
首先，不同产地、不同批次的石油焦原料依据成分分析结果被分别存放至不同的存料仓2中，由于每个存料仓2中都设置有RFID电子标签，MES系统7可依据标签信息自动获取到每个存料仓2中的物料成分信息和库存量数据，而后工作人员可依据实际生产需求，在MES系统7中输入对应的需求信息，系统将根据获取到的每个存料仓2的物料成分和库存量数据自动计算配方并优选出最佳的配料方案，将该方案通过无线网络传输至抓斗天车6；随后抓斗天车6根据接受到的配方指令，利用RFID定位识别技术自动行驶至对应的存料仓2旁，操控抓斗自动抓取物料传送至中间料斗3，由于中间料斗3设置成漏斗形状，料斗内的物料将通过底部放料口下落至电子皮带秤4上，电子皮带秤4自动称重后将实时称重结果反馈至MES系统7与最优配方指令相比较，若比较后发现，电子皮带秤4的实时称重结果小于配方指令的数值，此时将发送纠偏信号至电子皮带秤4使其提升运料速度，确保单位时间内运送到混料机构中该种物料的质量仍旧能够以预定的给料量输送至混料机构混 合，从而进一步保证混料时每种既定物料的精确用量，确保了配料的精确性。反之，若MES系统7将实时称重结果与最优配方指令相比较后发现，电子皮带秤4的实时称重结果大于配方指令的数值，则将发送纠偏指令控制电子皮带秤4适当降低运料速度，同理，也能够确保单位时间内该种物料的准确混料量。最终实现每种物料的准确混配。
综上所述，本发明的铝电解石油焦自动精准配料系统及方法，设置有用于分别存放不同成分含量石油焦原料的若干存料仓；用于自动获取每个存料仓中的石油焦成分及库存量数据，并依据这些石油焦成分和库存量数据自动计算并优选配料配方，同时将最优配方指令发送至抓斗天车的MES系统；用于依照计算出的最优配方指令自动选取存料仓并从中自动抓取石油焦原料输送至中间料斗的抓斗天车以及用于对中间料斗中的落料实时称重，并依据称重结果按照特定的传送速度将落料传输至自动混料机构混合的电子皮带称。通过以上方式，本发明实现了石油焦混配的全程自动化操控，不仅降低了操作工人的劳动强度、提高了劳动效率、降低了人工成本，而且明显提高了物料的配料精度，有效解决了日常作业受人为因素影响大的技术难题，从而有效提升了产品质量。此外，该系统还通过将电子皮带秤的称重结果实时反馈至MES系统；而后由MES系统将实时称重结果与最优配方指令相比较并进行实时纠偏，直到实时称重结果与最优配方指令相一致；同时，将实时纠偏指令发送至电子皮带秤对皮带的运料速度进行变频控制，进而通过对皮带运行速度的实时调控，确保了每种物料能够在单位时间内以特定的给料量输送至自动混料机构，从而进一步确保物料混配的精准控制。
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换,凡在本发明的精神和原则之内，所作的 任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种铝电解石油焦自动精准配料系统，所述系统包括：
    若干存料仓(2)，用于分别存放不同成分含量的石油焦原料；
    MES系统(7)，用于自动获取每个所述存料仓(2)中的第一数据(1)，并依据所述第一数据(1)自动计算并优选配料配方，将最优配方指令发送至抓斗天车(6)，所述第一数据(1)为石油焦成分及库存量数据；
    抓斗天车(6)，用于依照所述最优配方指令自动选取存料仓(2)并从中自动抓取石油焦原料输送至中间料斗(3)；
    电子皮带称(4)，用于对所述中间料斗(3)中的落料实时称重，并依据称重结果以特定的传送速度将落料传输至自动混料机构混合，从而完成石油焦自动精准配料。
  2. 根据权利要求1所述的铝电解石油焦自动精准配料系统，其中，
    所述电子皮带秤(4)还用于将称重结果实时反馈至MES系统(7)；所述MES系统(7)还用于将实时称重结果与所述最优配方指令相比较并进行实时纠偏，直到所述电子皮带秤(4)的实时称重结果与所述最优配方指令相一致；
    所述MES系统(7)还用于发送实时纠偏指令对所述电子皮带秤(4)的运料速度进行变频控制，以确保每种物料能够在单位时间内以特定的给料量输送至自动混料机构。
  3. 根据权利要求1或2所述的铝电解石油焦自动精准配料系统，其中，
    在每个所述存料仓(2)中均设置RFID电子标签；
    所述MES系统(7)通过RFID电子标签获取每个所述存料仓(2)中石油焦成分及库存量的实时数据信息。
  4. 根据权利要求3所述的铝电解石油焦自动精准配料系统，其中，
    所述抓斗天车(6)包括大小车行走机构、抓斗、PLC控制器以及RFID阅读器；
    所述MES系统(7)用于发送配方指令到所述PLC控制器，所述RFID阅读器通过读取所述存料仓(2)中的电子标签信息，自动选取存料仓(2)；而后由所述PLC控制器操纵所述大小车行走机构自动行走至选取到的所述存料仓(2)并操纵所述抓斗自动抓取石油焦原料输送至中间料斗(3)。
  5. 根据权利要求2所述的铝电解石油焦自动精准配料系统，其中，
    所述电子皮带秤(4)包括称重模块、传送皮带、驱动电机、测速模块、以及变频器，以实现传输物料的过程中根据所述实时纠偏指令进行PID自动调节。
  6. 根据权利要求1所述的铝电解石油焦自动精准配料系统，其中，
    所述中间料斗(3)以一对一或多对一的形式设置在所述存料仓(2)的侧方，所述中间料斗(3)呈漏斗形设置，底部设有放料口，所述放料口设置于所述电子皮带秤(4)的正上方，并与所述电子皮带秤(4)密封连接。
  7. 一种铝电解石油焦自动精准配料方法，所述方法包括：
    将不同成分含量的石油焦原料分别存放于不同的存料仓(2)内；
    利用MES系统(7)自动获取每个所述存料仓(2)中的第一数据(1)，并依据所述第一数据(1)自动计算并优选配料配方，将最优配方指令发送至抓斗天车(6)，所述第一数据(1)为石油焦成分及库存量数据；
    所述抓斗天车(6)依照所述最优配方指令自动选取存料仓(2)并从中自动抓取石油焦原料输送至中间料斗(3)；
    利用电子皮带称(4)实时称取中间料斗(3)中的落料重量，并依据称重结果以特定的传送速度将落料传输至自动混料机构混合，从而完成石油焦自动精准配料。
  8. 根据权利要求7所述的铝电解石油焦自动精准配料方法，其中，所述利用电子皮带称实时称取中间料斗中的落料重量，并依据称重结果以特定的传送速度将落料传输至自动混料机构混合包括：
    所述电子皮带秤(4)将称重结果实时反馈至MES系统(7)；
    所述MES系统(7)将实时称重结果与所述最优配方指令相比较并进行实时纠偏，直到所述电子皮带秤(4)的实时称重结果与所述最优配方指令相一致；
    所述MES系统(7)发送实时纠偏指令对所述电子皮带秤(4)的运料速度进行变频控制，以确保每种物料能够在单位时间内以特定的给料量输送至自动混料机构。
  9. 根据权利要求7或8所述的铝电解石油焦自动精准配料方法，其中，所述利用MES系统自动获取每个所述存料仓中的第一数据包括：
    在每个所述存料仓(2)中均设置RFID电子标签；
    所述MES系统(7)通过RFID电子标签获取每个所述存料仓(2)中石油焦成分及库存量的实时数据信息。
  10. 根据权利要求9所述的铝电解石油焦自动精准配料方法，其中，所述抓斗天车依照所述最优配方指令自动选取存料仓并从中自动抓取石油焦原料输送至中间料斗包括：
    在所述抓斗天车(6)内设置大小车行走机构、抓斗、PLC控制器以及RFID阅读器；
    所述MES系统(7)发送配方指令到所述PLC控制器，所述RFID阅读器通过读取所述存料仓(2)中的电子标签信息，自动选取存料仓(2)；而后由所述PLC控制器操纵所述大小车行走机构自动行走至选取到的所述存料仓(2)并操纵所述抓斗自动抓取石油焦原料输送至中间料斗(3)。
PCT/CN2023/101238 2022-09-07 2023-06-20 铝电解石油焦自动精准配料系统及方法 WO2024051265A1 (zh)

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