Temperature synchronizing system and method used for metallurgic performance measuring device

A technology of synchronization system and measuring device, applied in the field of metallurgy, can solve the problems of uneven temperature of heated samples, unsynchronized furnace temperature changes, and uneven heat dissipation of the environment, so as to ensure uniformity and repeatability, improve efficiency, and improve The effect of uniformity

Active Publication Date: 2015-04-08
JIANGSU PROVINCE METALLURGICAL DESIGN INST
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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 heate

Method used

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  • Temperature synchronizing system and method used for metallurgic performance measuring device
  • Temperature synchronizing system and method used for metallurgic performance measuring device

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Embodiment Construction

[0043] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0044] The metallurgical measurement device of the present invention is configured with a computer and a professional instrument control cabinet (including four thermocouple temperature measurement and display modules, three smart meters, and three thyristor rectifiers); wherein the three thermocouples are respectively arranged in Near the furnace wall of the three heating sections of the metallurgical performance measuring device, it is used to measure the furnace temperature; a thermocouple is arranged in the middle of the furnace containing the tested sample to measure the temperature of the sample; three thyristor rectifiers are respectively connected to the three The resistance wires of each heating section are connected to their respective smart meters to adjust the heating power of each section. The temperature data measured by the four thermocoup...

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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...

Claims

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Application Information

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IPC IPC(8): G05D23/22
Inventor 吴道洪陈万里徐青
Owner JIANGSU PROVINCE METALLURGICAL DESIGN INST
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