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A gas-based reduction simulation device and a gas-based reduction simulation method
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A simulation device and simulation method technology, applied in the field of gas-based thermal simulation experiments in high-temperature laboratories, can solve the problems of low accuracy of experimental results, achieve the effects of ensuring the stability of settings, improving accuracy, and reducing secondary oxidation
Active Publication Date: 2022-07-29
CENT IRON & STEEL RES INST +1
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[0004] In view of the above analysis, the present invention aims to provide a gas-based reduction simulation device and a gas-based reduction simulation method, which solves the problems of secondary oxidation of reduced materials and low accuracy of experimental results in the prior art
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Embodiment 1
[0096] Step A: set the temperature of the furnace tube, the reduction temperature is 1200°C, the heating rate in the furnace tube is 10°C / min, and nitrogen is introduced into the furnace tube through the reduction air inlet, and the nitrogen flow rate is 1L / min;
[0097] Step B: When the temperature in the furnace tube reaches 1200 °C, the upper flange hanging from one end of the protector hanging wire and the charging basket suspended by the lower hanging wire of the charging basket in the tube are lowered through the hoist, and the material is loaded. The basket is put into the furnace tube, the upper flange and the lower flange are aligned and fixed with bolts;
[0098] Step C: set the reduction air inlet to feed carbon monoxide into the furnace tube, the gas flow rate is 1L / min, the pressure in the furnace tube is 0.005Mpa, and the reduction time is 20min;
[0099] Step D: After the experiment is completed, the gas from the reduction inlet to the furnace tube is changed to...
Embodiment 2
[0104] Step A: Use the hoist to lower the upper flange hanging from one end of the protector hanging wire together with the charging basket suspended by the lower tube charging basket hanging wire, and put the charging basket into the furnace tube, and the upper flange Align with the lower flange and fasten with bolts;
[0105] Step B: set the temperature of the furnace tube, the reduction temperature is 1200°C, the heating rate in the furnace tube is 10°C / min, and nitrogen is introduced into the furnace tube through the reduction air inlet, and the nitrogen flow rate is 1L / min;
[0106] Step C: when the temperature in the furnace tube reaches 1200°C, the reduction air inlet is set to feed hydrogen into the furnace tube, the gas flow is 1L / min, the pressure in the furnace tube is 0.01Mpa, and the reduction time is 30min;
[0107] Step D: After the experiment is completed, the gas from the reduction inlet to the furnace tube is changed to nitrogen, and then the bolts of the upp...
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Abstract
The invention discloses a gas-based reduction simulation device and a gas-based reduction simulation method, which belong to the technical field of high-temperature laboratory gas-based thermal simulation experiments, and solve the problems of secondary oxidation of reduced materials in the prior art, and the accuracy of experimental results is relatively high. low problem. The device of the present invention includes a reduction furnace, a protector, a cooler and a protective gas supply unit, the protective gas supply unit is communicated with the protector, the protective gas in the protector is positive pressure, the experimental material is placed in the reduction furnace, and the opening of the protector Set down, the protector is buckled on the top of the reduction furnace, and the experimental material is removed from the reduction furnace into the protector and transferred to the cooler. The method of the invention comprises: conducting gas-based reduction of experimental materials in a reduction furnace; a protector is buckled at the top of the reduction furnace; a protective gas supply unit is opened, and the experimental materials are moved out of the reduction furnace into the protector; the protector is moved, and the experimental materials are transferred into the cooler. The apparatus and method of the present invention can be used for gas-based reduction simulations.
Description
technical field [0001] The invention belongs to the technical field of high-temperature laboratory gas-based thermal simulation experiments, and particularly relates to a gas-based reduction simulation device and a gas-based reduction simulation method. Background technique [0002] The material is reduced in a high-temperature reduction experimental furnace. Since the temperature of the reduced material is high, oxidation reaction is likely to occur. Therefore, the reduced material needs to be protected by atmosphere. [0003] In the existing gas-based reduction furnace, when cooling is required, the high-temperature sample is directly taken out and placed in a crucible or container with a non-oxidizing atmosphere, and the reduced material is in contact with air during the process of being taken out from the reduction furnace and fed into the crucible. It is impossible to fully guarantee the atmosphere protection of materials in the process of discharging and feeding, and i...
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