Temperature control method and device of titanium reduction distilling furnace
A temperature control method and technology of a control device are applied in the field of temperature control and device of a titanium reduction distillation furnace, which can solve the problems of system voltage shock fluctuation, large heat fluctuation loss, unstable product quality, etc., and achieve long working life and reduce labor. Strength, the effect of preventing human error
Inactive Publication Date: 2012-05-30
GUIYANG AL-MG DESIGN & RES INST
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Problems solved by technology
It is easy to cause human error and malfunction
In addition, due to temperature inertia, the actual temperature will be higher than the temperature required by the process; the loss of heat fluctuation is large, the energy consumption is high, and the product quality is unstable
Due to the frequent action of the contactor during the working cycle, the contactor is easily damaged; the arc generated during the power-on and power-off process of the contactor makes the system voltage fluctuate and affects the power quality
Method used
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Embodiment Construction
[0013] The present invention will be described in further detail below in conjunction with the examples, but not as a limitation to the present invention.
[0014] Embodiments of the invention. The temperature control method of titanium reduction distillation furnace, such as figure 1 shown. In this method, the preset temperature curve is input into the control device 4 as a model, and the control device is composed of a PLC control system, a DCS control system, or a single-chip microcomputer and other control systems. At the same time, the measured temperature of each group of electric heaters 1 is also input into the control device 4, and the measured temperature of each group is compared with the corresponding temperature of the model; Turn on or increase the number of cycles of conduction. The thyristor power regulating device 2 is composed of a typical thyristor trigger circuit. The thyristor power regulating device 2 conducts or shutdown control. By controlling the t...
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The invention discloses temperature control method and device of a titanium reduction distilling furnace. The method comprises the following steps: inputting a preset temperature curve into a control device of a DCS or a PLC for being used as a sample; inputting the measuring temperatures of all sets of electric heaters into the control device of the DCS or the PLC; and comparing the measuring temperatures of all sets of electric heaters with the corresponding temperature of the sample, wherein the control device of the DCS or the PLC is adjusted by a power-adjusting device to switch on or off a silicon controlled rectifier, reduce or increase a cycle number of conduction so as to control the temperature of the titanium reduction distilling furnace. The invention uses the silicon controlled rectifier to replace a contactor in the prior art, can realize automatic control in metal titanium reduction reaction process, improves the accuracy and the reliability of the temperature control, stabilizes the product quality, reduces heat fluctuation loss, has low energy consumption, frees operator workers from observing a thermometer all the time, thereby avoiding manual operation errors and defaults, improving the control reliability and lightening the worker labor intensity.
Description
technical field [0001] The invention relates to a temperature control method and device, in particular to a temperature control method and device for a titanium reduction distillation furnace. Background technique [0002] In the titanium smelting industry, metal titanium (commonly known as sponge titanium according to its properties) is produced through replacement and reduction reactions. The specific production process is to add metal magnesium to the titanium tetrachloride stock solution in the reduction distillation furnace, and reduce the metal titanium by magnesium to generate sponge titanium and magnesium chloride. During the replacement reaction, temperature control of the reduction distillation furnace is required. The furnace wall of the reduction distillation furnace is surrounded by electric heaters in sections, and each section of the electric heater is equipped with a temperature measuring instrument. If the temperature of a certain section is lower than the ...
Claims
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IPC IPC(8): C22B34/12C22B5/04C22B9/02
Inventor 祁晓牧
Owner GUIYANG AL-MG DESIGN & RES INST