CN-122022386-A - Crushing station coal blending scheduling method and system, computer readable storage medium and equipment

CN122022386ACN 122022386 ACN122022386 ACN 122022386ACN-122022386-A

Abstract

The disclosure relates to the technical field of intelligent scheduling of open coal mines and provides a coal blending scheduling method and system for a crushing station, a computer readable storage medium and equipment, wherein the method comprises the steps of obtaining a target mixed heat value of the crushing station and coal heat values corresponding to a plurality of coal transportation vehicles; when each coal transporting vehicle reaches the diversion intersection, the coal transporting vehicles are subjected to inlet distribution according to the current queuing state of each feeding inlet and the heat value of coal, and the vehicle release rate of each feeding inlet is dynamically adjusted based on the heat value distribution of the distributed coal transporting vehicles at each feeding inlet and the target mixed heat value so as to regulate and control the coal feeding proportion of each feeding inlet, so that the heat value of the mixed coal output by the crushing station approaches to the target mixed heat value. The system and the method not only effectively improve the heat value stability and the coal blending precision of the coal quality output by the crushing station, but also obviously improve the overall operation efficiency and the intelligent level of the unmanned transportation system of the open pit coal mine by cooperatively optimizing the vehicle dispatching and the release control.

Inventors

LI ZHAO
MOU JUNFA
SONG HANCHEN
REN HONGLIANG
GAO DAZHAO
NIU JUNJIE
SHI JIANGBO

Assignees

西安主函数智能科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260403

Claims (10)

1. A coal blending scheduling method for a crushing station, characterized by being applied to an unmanned open pit coal mine transportation system, the system comprising a diversion intersection arranged in front of the crushing station and a plurality of feed inlets of the crushing station, the method comprising: Acquiring target mixed heat values of the crushing station and corresponding coal heat values of a plurality of coal transportation vehicles; When each coal-carrying vehicle reaches the diversion intersection, carrying out inlet distribution on the coal-carrying vehicles according to the current queuing state of each feeding inlet and the heat value of the coal; And dynamically adjusting the vehicle release rate of each feeding inlet based on the heat value distribution of the distributed coal transportation vehicles at each feeding inlet and the target mixed heat value so as to regulate and control the coal feeding proportion of each feeding inlet and enable the mixed coal heat value output by the crushing station to approach the target mixed heat value.
2. The method of claim 1, wherein said allocating the coal transportation vehicle inlet based on the current queuing status of each feed inlet and the coal heating value comprises: Calculating the deviation degree of the average heat value of the queue obtained after the coal-carrying vehicles are added to the queue of the feeding inlet and the target mixed heat value for each feeding inlet; The coal-moving vehicle is distributed to the feeding inlet with the smallest deviation degree.
3. The method of claim 1, wherein said dynamically adjusting the vehicle release rate of each of said feed inlets comprises: Establishing an objective function which aims at minimizing the deviation between the mixed coal heat value output by the crushing station and the target mixed heat value, and setting constraint conditions that the deviation does not exceed the allowable heat value deviation; solving an optimal release rate vector meeting the constraint condition; And controlling the vehicle release rate of each feeding inlet according to the optimal release rate vector.
4. A method according to claim 3, wherein the optimal release rate vector satisfies the following constraint: the sum of the discharge rates of the feed inlets does not exceed the maximum throughput capacity of the crushing station.
5. The method according to any one of claims 1 to 4, further comprising: And in the unloading process of the coal transportation vehicle, adjusting the unloading speed of the coal transportation vehicle according to the relative relation between the heat value of the coal and the target mixed heat value.
6. The method of claim 5, wherein said adjusting the discharge speed of the coal-moving vehicle comprises: if the coal heat value of the current discharging vehicle is larger than the target mixed heat value and the current mixed heat value is higher than the target mixed heat value, or the coal heat value of the current discharging vehicle is smaller than the target mixed heat value and the current mixed heat value is lower than the target mixed heat value, the discharging speed of the coal transporting vehicle is slowed down; And if the heat value of the coal of the current discharging vehicle is larger than the target mixed heat value and the current mixed heat value is lower than the target mixed heat value, or if the heat value of the coal of the current discharging vehicle is smaller than the target mixed heat value and the current mixed heat value is higher than the target mixed heat value, the discharging speed of the coal transporting vehicle is accelerated.
7. The method according to claim 1, wherein the method further comprises: If the number of the queuing vehicles at any feeding inlet is lower than a first preset threshold, preferentially distributing the newly arrived coal transporting vehicles to the feeding inlet until the number of the queuing vehicles at the feeding inlet reaches a second preset threshold, wherein the second preset threshold is larger than the first preset threshold; If the number of the queuing vehicles at any feeding inlet exceeds a third preset threshold, the vehicle unloading speed at the feeding inlet is increased, and the vehicle release speed and the vehicle unloading speed at other feeding inlets are dynamically adjusted until the number of the queuing vehicles at the feeding inlet is lower than a fourth preset threshold, wherein the fourth preset threshold is smaller than the third preset threshold.
8. A coal blending scheduling system for a crushing station, the crushing station comprising a plurality of feed inlets, the system comprising: The heat value acquisition module is used for acquiring target mixed heat values of the crushing station and the heat values of the coals corresponding to the plurality of coal transportation vehicles respectively; the inlet distribution module is used for distributing the inlets of the coal vehicles according to the current queuing state of each feeding inlet and the heat value of the coal when each coal vehicle reaches the diversion intersection before the crushing station; And the coal blending scheduling module is used for dynamically adjusting the vehicle release rate of each feeding inlet based on the heat value distribution of the coal transportation vehicles distributed at each feeding inlet and the target mixed heat value so as to regulate and control the coal feeding proportion of each feeding inlet and enable the mixed coal heat value output by the crushing station to approach the target mixed heat value.
9. A computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the crushing station coal blending scheduling method of any of claims 1 to 7.
10. An electronic device, comprising: Processor, and A memory for storing executable instructions of the processor; Wherein the processor is configured to execute the crushing station coal blending scheduling method of any one of claims 1-7 via execution of the executable instructions.

Description

Crushing station coal blending scheduling method and system, computer readable storage medium and equipment Technical Field The disclosure relates to the technical field of intelligent scheduling of open coal mines, in particular to a crushing station coal blending scheduling method and system, a computer readable storage medium and equipment. Background In an unmanned transportation scene of an opencast coal mine, the traditional coal blending relies on fixed proportion of a mining area source, a crushing station link lacks heat value feedback and active regulation and control capability, the existing unmanned transportation system pays attention to vehicle dispatching and passing efficiency, dynamic cooperation of multi-source coal heat values is not brought into dispatching decisions, and stability and accuracy of the mixed coal heat values are difficult to guarantee. In view of this, there is a need in the art to develop a new coal blending scheduling method and system for crushing stations. It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present disclosure. Disclosure of Invention The disclosure aims to provide a crushing station coal blending scheduling method, a crushing station coal blending scheduling system, a computer readable storage medium and electronic equipment, so as to overcome the technical problem that the capability of dynamically sensing and cooperatively regulating and controlling the heat value of multi-source coal in a crushing station link is lacking in the related art at least to a certain extent. Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure. According to a first aspect of the present disclosure, there is provided a coal blending scheduling method for a crushing station, for use in an unmanned transportation system for an open pit coal mine, the system comprising a diversion intersection disposed in front of the crushing station and a plurality of feed inlets for the crushing station, the method comprising: Acquiring target mixed heat values of the crushing station and corresponding coal heat values of a plurality of coal transportation vehicles; When each coal-carrying vehicle reaches the diversion intersection, carrying out inlet distribution on the coal-carrying vehicles according to the current queuing state of each feeding inlet and the heat value of the coal; And dynamically adjusting the vehicle release rate of each feeding inlet based on the heat value distribution of the distributed coal transportation vehicles at each feeding inlet and the target mixed heat value so as to regulate and control the coal feeding proportion of each feeding inlet and enable the mixed coal heat value output by the crushing station to approach the target mixed heat value. In an exemplary embodiment of the disclosure, the allocating the coal transportation vehicle according to the current queuing state of each feeding inlet and the coal calorific value includes: Calculating the deviation degree of the average heat value of the queue obtained after the coal-carrying vehicles are added to the queue of the feeding inlet and the target mixed heat value for each feeding inlet; The coal-moving vehicle is distributed to the feeding inlet with the smallest deviation degree. In an exemplary embodiment of the present disclosure, the dynamically adjusting the vehicle release rate of each of the feed inlets includes: Establishing an objective function which aims at minimizing the deviation between the mixed coal heat value output by the crushing station and the target mixed heat value, and setting constraint conditions that the deviation does not exceed the allowable heat value deviation; solving an optimal release rate vector meeting the constraint condition; And controlling the vehicle release rate of each feeding inlet according to the optimal release rate vector. In an exemplary embodiment of the present disclosure, the optimal clearance rate vector satisfies the following constraint: the sum of the discharge rates of the feed inlets does not exceed the maximum throughput capacity of the crushing station. In an exemplary embodiment of the present disclosure, the method further comprises: And in the unloading process of the coal transportation vehicle, adjusting the unloading speed of the coal transportation vehicle according to the relative relation between the heat value of the coal and the target mixed heat value. In an exemplary embodiment of the present disclosure, the adjusting the discharge speed of the coal-moving vehicle includes: if the coal heat value of the current discharging vehicle is larger than the target mixed heat value and the current mixed heat value is higher than the target mixed heat value, or the coal heat value of the current discharging vehicle is smalle