CN-119549270-B - Full-size-fraction dry coal dressing system based on digital twin

CN119549270BCN 119549270 BCN119549270 BCN 119549270BCN-119549270-B

Abstract

The invention discloses a full-size dry coal dressing system based on digital twinning, which comprises a raw coal preparation module, a sorting quality-improving module, a medium circulation module, a computer module and a digital twinning module, wherein the raw coal preparation module is configured to crush raw coal and control the moisture of the raw coal, the sorting quality-improving module is configured to sort and size-grade the crushed raw coal, the medium circulation module is configured to separate a clean coal product and a heavy medium so as to recycle the heavy medium in the sorting process, the computer module is configured to establish a prediction model according to historical data, load working data of each module into the prediction model to conduct coal quality prediction, and output optimal equipment parameters of a coal dressing system under the current working condition to guide the production process of the coal dressing system, the digital twinning module is used for receiving state detection data of each module, establishing a three-dimensional model of the coal dressing system and realizing visualization, and the computer module is used for displaying the working state of the coal dressing system in real time based on the digital twinning module and controlling the adjustment of the operation parameters of each module according to the working state.

Inventors

WANG XINNING
SHAO MING
LIU JIAN
ZHANG LIN
CUI ZHICHENG
WANG LIJUN

Assignees

国电建投内蒙古能源有限公司
大地工程开发(集团)有限公司

Dates

Publication Date: 20260512
Application Date: 20241226

Claims (9)

1. The utility model provides a full size fraction dry coal dressing system based on digit twin which characterized in that includes: a raw coal preparation module configured to crush raw coal and control moisture of the raw coal; the sorting and upgrading module is configured to sort and size-grade crushed raw coal; The medium circulation module is configured to separate the clean coal products and the heavy media and separate the heavy media in the pulverized coal so as to recycle the heavy media in the separation process; The computer module is respectively coupled with the raw coal preparation module, the sorting quality-improving module and the medium circulation module, and is configured to establish a prediction model according to historical data, load working data of the raw coal preparation module, the sorting quality-improving module and the medium circulation module into the prediction model for coal quality prediction, and output optimal equipment parameters of the coal separation system under the current working condition to guide the production process of the coal separation system; The system comprises a raw coal preparation module, a sorting quality-improving module, a medium circulation module, a digital twin module, a computer module, a sorting quality-improving module, a control module and a control module, wherein one end of the digital twin module is respectively coupled with the raw coal preparation module, the sorting quality-improving module and the medium circulation module and is used for receiving state detection data of each module, establishing a three-dimensional model of a coal preparation system and realizing visualization; The computer module includes: the PC computer is configured to process and store the working data of the coal preparation system, establish the prediction model based on an intelligent algorithm, and input the working data of the raw coal preparation module, the sorting and upgrading module and the medium circulation module into the prediction model to obtain the optimal equipment parameters of the coal preparation system; and the PLC control unit is coupled with the PC computer and is configured to receive the optimal equipment parameters obtained by the PC computer and input the optimal equipment parameters into the raw coal preparation module, the sorting and upgrading module and the medium circulation module so as to control the production process of the coal preparation system.
2. The digital twinning-based full size dry coal separation system of claim 1, wherein the PC computer comprises: The MySQL database unit is configured to store and call working parameter data of the raw coal preparation module, the sorting and upgrading module and the medium circulation module; And the python environment programming unit is configured to perform data preprocessing and parameter optimization on the data of the raw coal preparation module, the sorting and upgrading module and the medium circulation module by calling a machine learning algorithm model based on a python compiling language environment.
3. The digital twinning-based full size dry coal separation system of claim 1, wherein the digital twinning module comprises: the three-dimensional modeling unit is configured to establish a three-dimensional model of the coal dressing system according to the operation parameters, the production data and the size data of the coal dressing system under the current working condition; and the data visualization unit is configured to visualize the three-dimensional model of the coal dressing system so as to visualize the production process of the coal dressing system.
4. The digital twinning-based full size dry coal separation system of claim 3, wherein the digital twinning module further comprises: And the feedback unit is configured to receive an operation instruction and feed the operation instruction back to the computer module so that the computer module controls the coal dressing work of the raw coal preparation module, the sorting and upgrading module and the medium circulation module according to the operation instruction.
5. The digital twinning-based full size dry separation system of claim 1, wherein the raw coal preparation module comprises: a pre-screening device configured to classify a particle size of raw coal; a crushing device configured to crush raw coal; And a drying device configured to control moisture in the raw coal.
6. The digital twinning-based full size dry separation system of claim 5, wherein the raw coal preparation module further comprises: The state detection unit comprises a vibration sensor and a temperature sensor, wherein the vibration sensor is used for detecting the vibration amplitude and the vibration frequency of the crushing device, and the temperature sensor is used for detecting the temperature of the drying device.
7. The digital twinning-based full size dry coal separation system of claim 1, wherein the sort upgrading module comprises: a classifier configured to classify crushed raw coal, wherein the classifier includes a photoelectric classifier, a composite dry classifier, and a dense-medium fluidized-bed classifier; a classifying screen configured to classify the crushed raw coal in particle size; The coal quality detection unit comprises an online ash detection device and a parameter sensor, wherein the online ash detection device is used for detecting ash and heating value of each raw coal sorting product, and the parameter sensor is used for detecting vibration frequency, bed inclination angle, air volume of an air chamber, air speed of an inner bed, bed pressure and bed height of the sorting machine.
8. The digital twinning-based full size dry coal separation system of claim 1, wherein the media circulation module comprises: a medium removal sieve configured to separate the cleaned coal product from the heavy medium; the magnetic separator is configured to separate heavy media in the pulverized coal; a dust collector configured to adsorb dust generated during the sorting process.
9. The digital twinning-based full size dry coal separation system of claim 8, wherein the media circulation module further comprises: a bed detection unit configured to detect a bed density of the classifier; A dosing device configured to media replenish the classifier based on a bed density of the classifier; And the medium flow detection unit is configured to collect the medium and coal dust flows of the quantitative feeding device.

Description

Full-size-fraction dry coal dressing system based on digital twin Technical Field The invention relates to the technical field of coal dressing, in particular to a digital twin-based full-size-fraction dry coal dressing system. Background The consumption of coal in China is always higher than 60%, and the coal is still the most important fossil fuel in China. Therefore, the efficient clean utilization of coal promotes the green development of coal to become an important direction of the current coal development. In addition, along with the rapid development of new energy, the national dependence on coal is slowly reduced, and the surplus productivity becomes a great difficulty. So in the current age, the structural reform of the supply side in the coal field is quickened, the clean, high-efficiency and low-carbon development is promoted, the technical innovation of the coal is enhanced, and the high-efficiency utilization of the coal is improved. The current world faces serious water shortage, so the high-efficiency dry coal separation process is helpful to improve the existing separation technical problem. With the rapid development of industrial technology and new generation information technology, the level of equipment intelligence in the fields of industrial manufacturing and the like is increasing. Aiming at the on-line running state monitoring of complex equipment, abnormal alarm, fault diagnosis, life prediction and the like become the current hot spot direction and field. In the related technology, in the coal preparation process, the operation parameters of each coal preparation device in the coal preparation system are difficult to accurately adjust, and the coal preparation system and a user cannot directly interact, so that the user cannot directly know the operation condition of each device, and the process efficiency is low and the process cost is high. Disclosure of Invention The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the first aim of the invention is to provide a full-size-fraction dry coal dressing system based on digital twin, which solves the limitation that the operation parameters are difficult to accurately adjust in the coal dressing process by intelligently regulating and controlling coal dressing equipment through a computer module, realizes the immersive man-machine interaction function of users and physical entities through a three-dimensional model established by the digital twin module, and has the advantages of equipment health detection, process effect prediction analysis, process data optimization, process efficiency improvement and process cost reduction. In order to achieve the above purpose, the embodiment of the first aspect of the invention provides a full-size dry coal preparation system based on digital twinning, which comprises a raw coal preparation module, a sorting quality-improving module, a medium circulation module, a digital twinning module, a computer module, a digital twinning module, a control module and a control module, wherein the raw coal preparation module is configured to crush raw coal and control water content of the raw coal, the sorting quality-improving module is configured to sort and size-grade the crushed raw coal, the medium circulation module is configured to separate a clean coal product and a heavy medium and separate the heavy medium in the coal dust so as to recycle the heavy medium in the sorting process, the computer module is respectively coupled with the raw coal preparation module, the sorting quality-improving module and the medium circulation module, a prediction model is established according to historical data, working data of the raw coal preparation module, the sorting quality-improving module and the medium circulation module is loaded into the prediction model, and optimal equipment parameters of the coal preparation system are output under the current working condition to guide the production process of the coal preparation system, one end of the digital twinning module is respectively coupled with the raw coal preparation module, the twin module is coupled with the medium circulation module and the control module according to the working state of the raw coal preparation module, the digital twinning module is adjusted according to the working state of the digital twinning module, and the working quality-improving module is calculated and the working state of the digital twinning module is adjusted. According to the full-size-fraction dry coal preparation system based on digital twinning, a raw coal preparation module is used for crushing raw coal and controlling the water content of the raw coal, a sorting quality-improving module is used for sorting and grading the crushed raw coal, a medium circulation module is used for separating a clean coal product and a heavy medium and separating the heavy medium in coal dust so as to recycle the heavy me