Temperature synchronizing system and method used for metallurgic performance measuring device

Abstract

The invention relates to the field of metallurgy and provides a temperature synchronizing system and method used for a metallurgic performance measuring device. The temperature synchronizing system comprises a temperature measuring system, a furnace temperature adjusting system and a central control module, the temperature measuring system comprises furnace temperature thermocouples and a material temperature thermocouple arranged at the center of an experiment sample in a furnace, the furnace temperature thermocouples are arranged on furnace walls of three heating sections respectively, the furnace temperature adjusting system comprises silicon controlled rectifiers arranged on resistance wires of the heating sections, and the central control module comprises a communication module, a material temperature control PID (proportion, integration and differentiation) algorithm module, a furnace temperature control PID algorithm module and a pulse heating PID control module. Heating processes of the three independent heating sections are unified by adopting an indirect control method and taking temperature increase speed of furnace temperature as a controlled object, so that influence on control accuracy due to difference in heating and cooling capability of each section in a conventional method is eliminated, inter-section temperature difference is reduced greatly, and uniformity in sample temperature is improved.

Description

technical field [0001] The invention relates to the field of metallurgy and provides a temperature synchronization system and method for a metallurgical performance measuring device. technical background [0002] The metallurgical performance measuring device is an experimental device mainly used to measure the reduction degree, reduction rate and other metallurgical properties of iron-containing raw materials (iron ore, iron-containing dust, etc.) , ISO11257, ISO11258, etc., the basic principle is to place a certain range of samples in a fixed bed, use a reducing gas composed of CO, H2 and N2, etc. to perform isothermal reduction at a set temperature, and weigh the samples at regular intervals. Calculate the reduction degree, reduction rate and other metallurgical properties after reduction for a certain period of time. The heating device of the measuring device is a resistance furnace composed of 3 sections of heating wires, which are respectively coiled on the upper, mid...

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the technical defect that the furnace temperature of each section cannot be synchronized due to factors such as different heating power and uneven heat dissipation of the environment when multiple heating sections are heated up independently, and the temperature difference between each section is large, resulting in uneven temperature of the heated sample. Invention proposes a temperature synchronization system and method for a metallurgical property measurement device

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