Temperature control method and device for baking device and baking system

Abstract

The invention discloses a temperature control method and device for a baking device and a baking system. The method comprises the steps that the target baking temperature of the current baking stage and the actual baking temperature of the baking device are determined; based on the change rate of the target baking temperature of the current baking stage, control parameters of the current baking stage are determed by using an optimization algorithm; based on the control parameters and the deviation between the target baking temperature and the actual baking temperature, first proportion information is determined through a PID algorithm; and on the basis of the first proportion information, the actual heating time of the baking device in the current control period is controlled, so that the deviation between the actual baking temperature of the baking device and the target baking temperature is smaller than a first threshold value. The method is accurate in temperature control, high in response speed, high in stability and capable of effectively guaranteeing the baking quality of the refractory castable.

Description

technical field [0001] The present application relates to the technical field of hot air valve preparation, in particular to a temperature control method, a control device and a baking system for a baking device. Background technique [0002] The hot blast valve is a cut-off device installed on the hot blast pipeline of the blast furnace hot blast stove system to control the opening and closing of the hot blast stove during the combustion period and the blast period. The inner wall of the hot air valve body needs to be coated with refractory castables. The refractory castables need to withstand the heat convection, heat radiation, and heat alternating loads of hot air at temperatures as high as 1200°C to 1450°C, and the working environment is harsh. Hot air valves generally use refractory castables with cement as the binder. During the construction process, a certain proportion of water needs to be added to participate in the reaction. There is a large amount of free water i...

AI Technical Summary

Problems solved by technology

Some enterprises use large-scale drying kilns for baking and curing, which requires large investment, high energy consumption, and occupies space, which increases the manufacturing cost of products

[0004] In order to speed up the maintenance process, some enterprises adopt extensive baking schemes such as fire roasting. The baking process requires personnel to control the equipment on site to meet the baking heating process. Due to the uneven baking technology of each operator, the quality of the baked products varies. Large, it is also difficult to maintain consistency in the baking process of the same type of valve refractory castables. Some companies use simple automatic baking devices, but it is difficult to achieve satisfactory results, which greatly restricts the baked products. Possibility of overall improvement in quality, at the same time, it is also difficult to improve the production efficiency of valve refractory castable baking due to the need for manual real-time intervention

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