Energy-saving optimization method for integration of melting, distribution and heat preservation parameters for aluminum die casting

Abstract

The invention discloses an energy-saving optimization method for integration of melting, distribution and heat preservation parameters for aluminum die casting. The energy-saving optimization method comprises the following steps: (1) collecting various static parameters and coefficients required by an optimization model through a site or a test; (2) establishing a cost optimization model based on simulation, wherein the model aims at minimizing smelting furnace energy consumption, smelting furnace burning loss, transportation energy consumption, transportation manpower cost, heat preservation furnace energy consumption and production pause punishment comprehensive cost; and (3) searching an approximately optimal parameter combination by using a genetic algorithm, and for a given production plan, inputting plan parameters into the model, so that the parameter combination with approximately optimal cost can be quickly given. According to the method, the aluminum die-casting melting, distribution and heat preservation parameter combination with the lowest cost can be selected for a given die-casting production plan, and the manufacturing cost can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of energy-saving optimization of aluminum die-casting process, and in particular relates to an energy-saving optimization method for the integration of melting, distribution and heat preservation parameters of aluminum die-casting. Background technique [0002] Industry is the main body of carbon emissions, an important area for my country to achieve "carbon peaking in 2030" and "carbon neutrality in 2060", and is the primary target for current energy conservation and emission reduction. As an enabling technology for lightweight vehicles, the aluminum die-casting process has the characteristics of high energy consumption and high emissions, and it is urgent to carry out energy-saving and emission-reduction work. In the die-casting process, the melting and heat preservation process consumes a lot of energy (consuming about 50% of the total energy consumption), has low energy efficiency, and has a large energy...

AI Technical Summary

Problems solved by technology

[0004] In order to prevent the aluminum liquid from being supplied on time, the current craftsmen generally use the rated melting speed (maximum melting speed), the highest upper and lower limit heat preservation height of the furnace, and a larger heat preservation upper and lower limit height, and will not adjust these for different production plans parameters, the time interval of feeding the holding furnace is not accurate, sometimes the feeding is not timely or the heat preservation amount of the holding furnace is at a high level for a long time

The operating parameters currently used can generally make some indicators better, such as higher melting efficiency, lower melting loss, fewer transportation times (making labor costs lower) and larger transportation intervals, but often lead to The very high heat preservation energy consumption has caused a certain amount of waste. The integration and optimization of these parameters can effectively reduce the overall energy consumption cost, but there is currently a lack of corresponding methods

[0005] In view of the above problems, the existing technology is relatively lacking, and there is only one related patented technology (publication number CN111325408A), which is aimed at the melting and heat preservation of molten aluminum in a distributed melting mode (a melting and heat preservation integrated furnace corresponds to One die-casting unit, without liquid aluminum transportation), is not applicable to the centralized melting mode (one melting furnace, corresponding to multiple holding furnaces and multiple die-casting units, with aluminum liquid distribution), so it is necessary to study new technologies to solve the problem above question

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