CN-116307388-B - Comprehensive evaluation method and device for cement raw material grinding system

CN116307388BCN 116307388 BCN116307388 BCN 116307388BCN-116307388-B

Abstract

The application relates to the technical field of pipeline repair, in particular to a comprehensive evaluation method and device of a cement raw material grinding system, wherein the method mainly comprises the steps of data collection and analysis, communication judgment, field calibration, simulation calculation and overall summarization, and compared with the traditional method of analyzing field data or performing simple calibration by only using engineer experience, the comprehensive evaluation method of the cement raw material grinding system provided by the application has lower error and higher stability, and the technical scheme disclosed by the application has a plurality of methods for reducing error and unstable factors in various aspects, such as collecting data to average at different times, opening sampling method during calibration, result weight analysis during the subsequent overall evaluation and the like, which are all lower errors, so that the result reliability is improved; the second aspect effectively reduces the limitation of personal judgment, and the solution needs to comprehensively comment on all parties in the initial exchange judgment and the subsequent summary, so that the limitation of personal judgment is avoided.

Inventors

ZHAO MIN
CHEN XIANGJUN

Assignees

成都嘉能恒业科技有限公司

Dates

Publication Date: 20260512
Application Date: 20230320

Claims (4)

1. A method for comprehensively evaluating a cement raw meal grinding system, which is characterized by comprising the following steps: Acquiring field history data, wherein the field history data comprises control image data records, raw material parameter records, product quality parameter records, a plurality of equipment state parameter records and pipeline sizes in a first preset time period; Performing preliminary calculations on the site history data, including: Calculating the wind speeds of a plurality of important nodes, wherein the wind speeds of the important nodes comprise the wind speed of an inlet pipeline of the vertical mill, the wind speed of a nozzle ring and the wind speed of a circulating air pipe; Calculating the resistance of a plurality of key devices, wherein the resistance of the key devices comprises the resistance of an inlet pipeline of a mill, the resistance of each part of the mill, the resistance of a cyclone barrel and the resistance of a bag dust collector; calculating the air quantity of a plurality of large fans and the unit consumption of important equipment, the method comprises the steps of high-temperature fan air quantity, circulating fan air quantity and unit consumption, tail exhaust fan air quantity and unit consumption, main motor unit consumption of a vertical mill and powder selecting machine unit consumption; Obtaining preliminary calculation data, marking the preliminary calculation data as first evaluation reference data, and sending the first evaluation reference data to a plurality of engineer terminals so that a plurality of engineers can obtain a system state judgment conclusion according to the comparison of the statistical data provided by the preliminary calculation data and the reference factory; Receiving a system state judgment conclusion fed back by each engineer terminal, and obtaining key calibration contents according to a plurality of system state judgment conclusions, wherein the key calibration contents comprise the air quantity of a high-temperature fan, the temperature of the high-temperature fan, the inlet and outlet pressure of the high-temperature fan and the gas component of the high-temperature fan, the air quantity of an inlet pipeline of a mill, the temperature of an inlet pipeline of the mill, the pressure of an inlet pipeline of the mill, the gas component of an inlet pipeline of the mill, the air quantity of a circulating air pipe, the temperature of the circulating air pipe, the pressure of the circulating air pipe, the gas component of the circulating air pipe, the air quantity of a cyclone outlet collecting pipe, the temperature of a cyclone outlet collecting pipe, the dust concentration of the cyclone outlet collecting pipe, the air quantity of the circulating fan, the temperature of the circulating fan, the inlet and outlet pressure of the circulating fan and the gas component of the circulating fan; Determining an opening position, the number of openings and an opening mode according to the key calibration content, and setting calibration monitoring equipment at a corresponding position of an equipment system according to the opening position, the number of openings and the opening mode; Obtaining calibration data fed back by a plurality of calibration monitoring devices in different time periods, and carrying out average processing on the calibration data to obtain calibration result data; the calibration result data are integrated and extracted to obtain second evaluation reference data, wherein the second evaluation reference data comprise the pressure loss of each main equipment component, the wind speed of an inlet pipeline and a nozzle ring of a mill, the wind leakage condition data of each pipeline, the separation efficiency of a cyclone and the unit consumption of main equipment; constructing a simulation model of the system according to the system structure, setting initial parameters of the simulation model according to the calibration result data, obtaining simulation data after a preset simulation time is elapsed, and recording the simulation data as third evaluation reference data; and carrying out weighted summarization statistics on the first evaluation reference data, the second evaluation reference data and the third evaluation reference data and combining with a preset judgment standard to obtain an evaluation report of the current system.
2. The comprehensive assessment method of the cement raw material grinding system according to claim 1, wherein the preset judgment standard is that the inlet negative pressure of a mill is lower than 1000Pa, the inlet wind speed is lower than 17m/s, the circulating wind quantity is higher than 1/4 of the total wind quantity of the system, the pressure difference of the mill in a vertical mill system is lower than 7000Pa, the wind speed of a nozzle ring is 40-60m/s, the pressure loss of a cyclone is lower than 1500Pa, the separation efficiency is higher than 92%, the step unit consumption of the mill is lower than 6 DEG per ton of raw material, the step unit consumption of a circulating fan is lower than 5 DEG per ton of raw material, and the air leakage oxygen content of a full grinding system is increased by less than 3%.
3. The method for comprehensively evaluating a cement raw meal grinding system according to claim 1, wherein, the weight ratio of the first evaluation reference data to the second evaluation reference data to the third evaluation reference data is 1:6:3.
4. A cement raw meal grinding system comprehensive assessment device, characterized in that the device comprises: the first acquisition module is used for acquiring field history data, wherein the field history data comprises control image data records, raw material parameter records, product quality parameter records, a plurality of equipment state parameter records and pipeline sizes in a first preset time period; The first calculation module is used for carrying out preliminary calculation on the field historical data to obtain preliminary calculation data, recording the preliminary calculation data as first evaluation reference data, and sending the first evaluation reference data to a plurality of engineer terminals so that a plurality of engineers can obtain a system state judgment conclusion according to the comparison of the statistical data provided by the preliminary calculation data and the reference factory; The first computing module includes: the first calculation unit is used for calculating the wind speeds of a plurality of important nodes, wherein the wind speeds of the important nodes comprise the wind speed of an inlet pipeline of the vertical mill, the wind speed of a nozzle ring and the wind speed of a circulating air pipe; The second calculation unit is used for calculating the resistance of a plurality of key devices, wherein the resistance of the key devices comprises the resistance of an inlet pipeline of the mill, the resistance of each part of the mill, the resistance of a cyclone cylinder and the resistance of a bag dust collector; The third calculation unit is used for calculating the air quantity of a plurality of large fans and the unit consumption of important equipment, including the air quantity of a high-temperature fan, the air quantity and the unit consumption of a circulating fan, the air quantity and the unit consumption of a tail exhaust fan, the unit consumption of a main motor of a vertical mill and the unit consumption of a powder selecting machine; the second calculation module is used for receiving a system state judgment conclusion fed back by each engineer terminal, and obtaining key calibration contents according to a plurality of system state judgment conclusions, wherein the key calibration contents comprise the air quantity of a high-temperature fan, the temperature of the high-temperature fan, the inlet and outlet pressure of the high-temperature fan and the gas component of the high-temperature fan, the air quantity of an inlet pipeline of a mill, the temperature of an inlet pipeline of the mill, the pressure of an inlet pipeline of the mill, the gas component of an inlet pipeline of the mill, the air quantity of a circulating air pipe, the temperature of the circulating air pipe, the pressure of the circulating air pipe, the gas component of the circulating air pipe, the air quantity of an outlet manifold of a cyclone, the temperature of an outlet manifold of the cyclone, the dust concentration of the outlet manifold of the cyclone, the gas component of the circulating fan, the air quantity of the circulating fan, the temperature of the inlet and outlet pressure of the circulating fan and the gas component of the circulating fan; The third calculation module is used for determining the position of the holes, the number of the holes and the hole opening mode according to the key calibration content, and setting calibration monitoring equipment at the corresponding position of the equipment system according to the position of the holes, the number of the holes and the hole opening mode; The second acquisition module is used for acquiring calibration data fed back by the plurality of calibration monitoring devices in different time periods, and carrying out average processing on the calibration data to obtain calibration result data; The integration module is used for integrating and extracting the calibration result data to obtain second evaluation reference data, wherein the second evaluation reference data comprises the pressure loss of each main equipment component, the wind speed of an inlet pipeline and a nozzle ring of the mill, the wind leakage condition data of each pipeline, the separation efficiency of the cyclone and the unit consumption of the main equipment; the simulation module is used for constructing a simulation model of the system according to the system structure, setting initial parameters of the simulation model according to the calibration result data, obtaining simulation data after the preset simulation time, and recording the simulation data as third evaluation reference data; And the weighting module is used for carrying out weighted summarization statistics on the first evaluation reference data, the second evaluation reference data and the third evaluation reference data and combining a preset judgment standard to obtain an evaluation report of the current system.

Description

Comprehensive evaluation method and device for cement raw material grinding system Technical Field The invention relates to the technical field of pipeline repair, in particular to a comprehensive evaluation method and device for a cement raw material grinding system. Background The existing traditional evaluation method only relies on the experience of engineers to analyze field data or simply calibrate the field data, so that more or less deviation exists, because different engineers can look at the same problem differently, various parameters themselves fluctuate when the system operates, operators can continuously adjust according to the system conditions, the material conditions change at different times, and accurate judgment results of the current production system are not easy to obtain. Disclosure of Invention The invention aims to provide a comprehensive evaluation method, device and equipment of a cement raw meal grinding system and a readable storage medium, so as to solve the technical problems. In order to achieve the above object, the embodiment of the present application provides the following technical solutions: In one aspect, the embodiment of the application provides a comprehensive evaluation method of a cement raw meal grinding system, which comprises the steps of acquiring field history data, wherein the field history data comprises control image data records, raw material parameter records, product quality parameter records, a plurality of equipment state parameter records and pipeline sizes in a first preset time period; the method comprises the steps of performing preliminary calculation on the field historical data to obtain preliminary calculation data, recording the preliminary calculation data as first evaluation reference data, transmitting the preliminary calculation data to a plurality of engineer terminals, enabling a plurality of engineers to obtain a system state judgment conclusion according to the statistical data comparison provided by the preliminary calculation data and simultaneously referring to factories, receiving the system state judgment conclusion fed back by each engineer terminal, and obtaining key calibration contents according to the system state judgment conclusion, wherein the key calibration contents comprise the air quantity of a high-temperature fan, the temperature of the high-temperature fan, the inlet and outlet pressure of the high-temperature fan and the gas component of the high-temperature fan, the air quantity of a mill inlet pipeline, the temperature of the mill inlet pipeline, the pressure of the mill inlet pipeline, the gas component of the mill inlet pipeline, the air quantity of a circulating air pipe, the temperature of the circulating air pipe, the circulating air pipe pressure, the circulating air pipe concentration of the circulating air pipe outlet of the circulating pipe of the cyclone outlet of the cyclone, the dust concentration of the cyclone outlet of the cyclone, the air component, the circulating fan air quantity, circulating fan temperature of the circulating fan pressure and circulating fan gas component of the key calibration contents, determining the opening positions, opening positions and opening positions according to the calibration contents and opening positions, setting calibration monitoring equipment at corresponding positions of an equipment system according to the number of holes and the hole opening mode, acquiring calibration data fed back by a plurality of calibration monitoring equipment in different time periods, carrying out average processing on the calibration data to obtain calibration result data, carrying out integration and extraction on the calibration result data to obtain second evaluation reference data, wherein the second evaluation reference data comprises pressure loss of each main equipment part, mill inlet pipeline and nozzle ring wind speed, air leakage condition data of each pipeline, cyclone separation efficiency and main equipment unit consumption, constructing a simulation model of the system according to a system structure, setting initial parameters of the simulation model according to the calibration result data, obtaining simulation data after preset simulation time is passed to obtain third evaluation reference data, and carrying out weighting, summarizing and statistics on the first evaluation reference data, the second evaluation reference data and the third evaluation reference data to obtain an evaluation report of the current system according to the preset judgment standard. Optionally, the performing preliminary calculation on the field history data includes: Calculating the wind speeds of a plurality of important nodes, wherein the wind speeds of the important nodes comprise the wind speed of an inlet pipeline of the vertical mill, the wind speed of a nozzle ring and the wind speed of a circulating air pipe; Calculating the resistance of a plurality of key devices, wherein th