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CN-121992215-A - Ash frying machine with high-strength slag frying pot

CN121992215ACN 121992215 ACN121992215 ACN 121992215ACN-121992215-A

Abstract

The invention relates to the technical field of secondary aluminum processing equipment, and discloses an ash frying machine with a high-strength slag frying pan. The stirring speed self-adaptive regulating and controlling system is used for regulating the stirring speed of the stirring main shaft in real time, and based on the instantaneous power and torque change rate of the stirring main shaft, the temperature gradient, standard deviation and temperature rise rate in the pot, the concentration of oxygen and dust in the flue gas, the accumulated specific energy consumption, the outflow rate of aluminum liquid and the concentration of carbon monoxide in the flue gas, the coefficient of interaction of the resistance, the coefficient of thermal dynamics, the comprehensive working condition quality factor and the process coefficient are respectively calculated and obtained, and the target stirring speed is calculated according to the coefficient to regulate. The invention realizes intelligent self-adaptive adjustment of the stirring speed, and remarkably improves the treatment efficiency and the operation stability.

Inventors

  • LI XIAOGUO
  • WU RENYUAN
  • YOU MENGYUAN

Assignees

  • 丰城市华龙金属制品有限公司

Dates

Publication Date
20260508
Application Date
20260408

Claims (7)

  1. 1. The utility model provides a fry ash machine with sediment pot is fried to high strength, includes the sediment pot is fried to high strength, the gas collecting channel seal board of sediment pot top installation is fried to high strength, tobacco pipe and stirring module are installed at gas collecting channel seal board top, its characterized in that still includes: Stirring speed self-adaptation regulation and control system, stirring speed self-adaptation regulation and control system is used for adjusting the stirring speed of stirring main shaft in real time, and stirring speed self-adaptation regulation and control system includes: the mechanical load sensing module is used for calculating and acquiring a force resistance interaction coefficient based on the instantaneous power and the torque change rate of the stirring main shaft; The thermal field uniformity evaluation module is used for calculating and acquiring a thermal dynamic coefficient based on the temperature gradient, the temperature standard deviation and the temperature rise rate in the pot; The multisource information fusion evaluation module is used for calculating and acquiring a comprehensive working condition quality factor based on the oxygen concentration and the dust concentration of the flue gas under the force resistance interaction coefficient and the thermal dynamic coefficient; the process progress estimation module is used for calculating and acquiring a process coefficient based on the accumulated specific energy consumption and the molten aluminum outflow rate; And the base speed decision and execution module is used for calculating and obtaining a target stirring speed in the comprehensive working condition quality factor, the process coefficient and the flue gas carbon monoxide concentration, and regulating the current stirring speed to the target stirring speed.
  2. 2. The ash frying machine with high-strength slag frying pan as claimed in claim 1, wherein the process of calculating and obtaining the target stirring speed is as follows: Acquiring a comprehensive working condition quality factor, a process coefficient and a flue gas carbon monoxide concentration; carrying out maximum-minimum normalization treatment on the carbon monoxide concentration of the flue gas to obtain a carbon monoxide concentration index of the flue gas; Determining a speed regulation coefficient according to the comprehensive working condition quality factor, the progress coefficient and the flue gas carbon monoxide concentration index; The speed regulation coefficient is positively correlated with the quality factor of the comprehensive working condition and negatively correlated with the process coefficient and the carbon monoxide concentration index of the flue gas; and calculating the target stirring speed based on the speed regulating coefficient and a preset minimum stirring speed and a preset maximum stirring speed.
  3. 3. The ash frying machine with the high-strength slag frying pan as claimed in claim 2, wherein the process of calculating and obtaining the process coefficients is as follows: acquiring accumulated specific energy consumption and molten aluminum outflow rate; Processing the ratio of the accumulated specific energy consumption and the molten aluminum outflow rate to the accumulated specific energy consumption and the maximum molten aluminum outflow rate when the process is finished respectively to obtain an accumulated specific energy consumption index and a molten aluminum outflow rate index; calculating a process coefficient in a nonlinear combination mode according to the accumulated specific energy consumption index and the aluminum liquid outflow rate index; the process coefficient increases as the cumulative specific energy consumption index increases, increases as the molten aluminum outflow rate index decreases, and takes on a value between 0 and 1.
  4. 4. The ash frying machine with high-strength slag frying pan as claimed in claim 1, wherein the process of calculating and obtaining the comprehensive working condition quality factor is as follows: Acquiring a mechanical resistance interaction coefficient and a thermal dynamic coefficient, and acquiring the oxygen concentration and the dust concentration of the flue gas; carrying out maximum-minimum normalization treatment on the oxygen concentration and the dust concentration of the flue gas to obtain an oxygen concentration index and a dust concentration index; Substituting the interaction coefficient of force resistance, the thermal dynamic coefficient, the oxygen concentration index and the dust concentration index into a formula Acquiring the quality factor of the comprehensive working condition , When all variables reach the ideal value, the exponent part is 0, The greater any variable deviates from the ideal value, the greater the negative value of the exponential portion, The closer to 0, wherein, For a global sensitivity coefficient greater than 0, , In order to achieve a coefficient of force-resistance interaction, , In the form of a coefficient of thermal dynamics, , Is an index of the concentration of oxygen, , Is an index of the concentration of dust, At the point of being a desired value, As the weight of the material to be weighed, , 。
  5. 5. The ash frying machine with high-strength slag frying pan as claimed in claim 4, wherein the process of calculating the interaction coefficient of the acquired force resistance is as follows: acquiring the instantaneous power and torque change rate of a stirring main shaft; performing dynamic impact correction on the instantaneous power of the stirring main shaft according to the torque change rate of the stirring main shaft to obtain equivalent impact power; Maximum-minimum normalization processing is carried out on equivalent impact power, and a force resistance interaction coefficient is obtained , , The closer to 1, the closer to the device limit the load is indicated; the closer to 0, the closer to no load.
  6. 6. The ash frying machine with high-strength slag frying pan as claimed in claim 4, wherein the flow of obtaining the thermal dynamic coefficient by calculation is as follows: acquiring the temperature gradient, the standard deviation and the temperature rise rate in the pot; the temperature gradient and the temperature standard deviation in the pot are respectively processed by ratio with the allowable maximum temperature gradient and the allowable maximum temperature standard deviation in the pot to obtain a temperature gradient index and a temperature standard deviation index; the absolute value of the optimal value of the temperature rise rate and the temperature rise rate in the pot is subjected to ratio processing with the allowable fluctuation range of the temperature rise rate, and a temperature rise rate index is obtained; fusing the temperature gradient index, the temperature standard deviation index and the temperature rise rate index into temperature field distortion measurement; The temperature field distortion measure is converted by non-linear transformation into a thermal dynamic coefficient having a value between 0 and 1.
  7. 7. The ash pan with high intensity slag pan of claim 6 wherein the thermal coefficient increases with decreasing distortion metric of the temperature field, taking a value of 1 when all deviations are zero.

Description

Ash frying machine with high-strength slag frying pot Technical Field The invention belongs to the technical field of secondary aluminum processing equipment, and particularly relates to an ash frying machine with a high-strength slag frying pan. Background The ash frying machine is core equipment in the recycled aluminum processing industry and is specially used for treating high-temperature aluminum ash generated in the aluminum smelting process. The equipment mechanically turns and breaks aluminum ash through the stirring device, and simultaneously the heating system provides heat energy to promote the melting, aggregation and final separation and recovery of residual aluminum liquid. In actual operation, the ash frying machine is generally composed of a slag frying pan, a stirring module (comprising a motor, a speed reducer, a stirring main shaft and stirring blades) and a heating system, and the stirring blades continuously stir materials to realize crushing and heat exchange processes during operation. However, the stirring speed control mechanism of the existing ash frying machine has obvious defects, the traditional equipment generally adopts constant stirring speed or a preset multi-gear speed regulation strategy, and the static control mode cannot respond to the dynamic evolution of the material state. In the whole period of the ash frying process, the physical state of the material undergoes complex transition, namely, in the initial stage, aluminum ash is in a block solid state, high stirring speed is needed to generate enough mechanical force to break up massive materials, in the middle stage, the material enters a semi-molten state, the stirring speed is moderate at the moment to optimize heat conduction and aluminum liquid separation efficiency, and in the later stage, the material is nearly in a complete liquid state, and the stirring speed is needed to be reduced to reduce dust generation and avoid insufficient combustion. The stirring strategy with fixed speed is difficult to balance the process requirements of each stage, so that the initial crushing efficiency is low, the heat exchange in the middle stage is insufficient, the dust emission in the later stage is increased, and the overall treatment efficiency is reduced and the energy consumption is increased. In addition, existing equipment is too simplified in terms of condition monitoring and regulation. The ash frying process is essentially a strong coupling process of multiple physical fields such as a mechanical stirring field, a temperature field, a smoke airflow field and the like, but the existing control system usually only monitors a single parameter (such as the temperature in a pot or the current of a motor), and omits comprehensive analysis of mechanical load characteristics (such as instantaneous power and torque change rate), temperature distribution uniformity (such as temperature gradient, temperature standard deviation and temperature rise rate) and multi-dimensional information such as smoke components (such as oxygen concentration, dust concentration and carbon monoxide concentration) and the like. The one-sided monitoring mode enables the equipment to be incapable of accurately evaluating whether the current working condition is in an ideal state or not, and risks such as local overheating, incomplete combustion, equipment overload and the like are easily caused, so that the process stability and the equipment service life are affected. More prominently, the adjustment of the stirring speed is seriously dependent on subjective experience of operators, and the operators need to manually adjust the stirring speed by visually observing the states (such as color and fluidity) of materials, so that the mode has high labor intensity, and the process parameters are fluctuated due to individual experience differences, so that the consistency and the repeatability of production are difficult to maintain. Meanwhile, in the face of sudden working conditions (such as sudden caking of materials or sudden temperature rise), manual response is often delayed, operation parameters cannot be optimized in time, and the possibility of process runaway is increased. Therefore, the prior art lacks an intelligent regulation and control system capable of dynamically adjusting stirring speed based on real-time multi-source data so as to adapt to the complexity of material state change and multi-physical field interaction. In view of the above, there is a need in the art for improvements. Disclosure of Invention The embodiment of the invention aims to provide an ash frying machine with a high-strength slag frying pan, and aims to solve the problems. The ash frying machine with the high-strength slag frying pan comprises the high-strength slag frying pan, a gas collecting sealing plate arranged on the top of the high-strength slag frying pan, a smoke pipe and a stirring module arranged on the top of the gas collecting sealing plate, a stirring