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A method for manufacturing a sealing cover for the observation hole of the fire path of a carbon anode roasting furnace

A carbon anode and a production method technology, which are applied in the field of carbon roasting furnace body and its materials, can solve the problems of low high temperature flexural strength, poor thermal shock stability, poor use effect, etc., and achieve improved thermal insulation and sealing effect, high temperature resistance sealing The effect of good performance and extended service life

Active Publication Date: 2016-06-01
济南海川投资集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the sealing cover used for the observation port of the carbon roasting fire path is traditionally made of an aluminum-silicon refractory material with a base material and additives, or a combination of various aluminum-silicon series materials with a base material and additives. Generally, there are problems such as low high temperature flexural strength, poor thermal shock stability, low softening temperature, and poor use effect.

Method used

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  • A method for manufacturing a sealing cover for the observation hole of the fire path of a carbon anode roasting furnace
  • A method for manufacturing a sealing cover for the observation hole of the fire path of a carbon anode roasting furnace
  • A method for manufacturing a sealing cover for the observation hole of the fire path of a carbon anode roasting furnace

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0013] Embodiment one: select the following raw material components in parts by weight:

[0014]

[0015] After the aggregates and additives are formulated according to the above-mentioned parts by weight, they are added to 6 times the parts by weight of the high-temperature-resistant silicon solvent. After the negative pressure mold of the sealing cover of the wall, the liquid solvent is sucked away by the vacuum pump through the gap of Φ2mm-Φ5mm in the inner wall of the interlayer and the pressure difference to form a sealing cover; after natural air drying for 96 hours, and then drying at 150°C-200°C for 72 hours The finished sealing cap is finished.

Embodiment approach 2

[0016] Embodiment two: select the following raw material components in parts by weight:

[0017]

[0018]

[0019] After the aggregates and additives are formulated according to the above-mentioned parts by weight, they are added to 7 times the parts by weight of the high-temperature-resistant silicon solvent. After the negative pressure mold of the sealing cover of the wall, the liquid solvent is sucked away by the vacuum pump through the gap of Φ2mm-Φ5mm in the inner wall of the interlayer and the pressure difference to form a sealing cover; after natural air drying for 96 hours, and then drying at 150°C-200°C for 72 hours The finished sealing cap is finished.

Embodiment approach 3

[0020] Embodiment three: select the following raw material components in parts by weight:

[0021]

[0022] After the aggregates and additives are formulated according to the above-mentioned parts by weight, they are added to 8 times the parts by weight of the high-temperature-resistant silicon solvent. After the negative pressure mold of the sealing cover of the wall, the liquid solvent is sucked away by the vacuum pump through the gap of Φ2mm-Φ5mm in the inner wall of the interlayer and the pressure difference to form a sealing cover; after natural air drying for 96 hours, and then drying at 150°C-200°C for 72 hours The finished sealing cap is finished.

[0023] The physical and chemical performance index of a kind of carbon anode baking furnace flue observation hole sealing cover is as follows:

[0024]

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Abstract

The invention discloses a manufacturing method of a flame path observation hole sealing cover of a carbon anode roasting furnace. Raw materials consist of three parts, including an aggregate, an additive and a solvent. The manufacturing method comprises the following steps: batching the aggregate and the additive according to parts by weight; adding into a high temperature resisting silicon solvent of which the weight part is 5-8 times that of the raw materials, adding a uniformly stirred and mixed pouring material into a sealing cove negative-pressure mold provided with double sandwich wall layers; pumping out the liquid solvent by a vacuum pump by gaps of which the size is Phi2mm to Phi5mm and pressure difference of the sandwich inner walls so as to form the sealing cover; naturally drying in air for 96 hours; and drying at the temperature of 150 to 200 DEG C for 72 hours to obtain a sealing cover finished product. The flame path observation hole sealing cover of the carbon anode roasting furnace has the beneficial effects of being reduced by 60% to 80% in weight, prolonged by 50% to 80% in service life, improved by 20% to 50% in heat insulation effect and sealing effect and reduced by 20% in consumption of a roasting fuel agent.

Description

technical field [0001] The invention relates to the technical field of a carbon roasting furnace body produced by anode carbon blocks for electrolytic aluminum and materials thereof. In particular, it relates to a method for manufacturing a sealing cover for an observation hole of a carbon anode roasting furnace. Background technique [0002] The carbon roasting furnace is mainly used to roast the anode carbon block to make it an anode for electrolytic aluminum. Bake in order to obtain a prebaked anode with high strength, low resistance and good conductivity. The material box of the carbon roaster is composed of a flue wall and a transverse wall. The top of the flue wall is composed of prefabricated blocks poured with refractory materials. There is a round hole in the middle of the top of each prefabricated block, which is used for flue gas discharge and temperature negative pressure measurement. , Production observation, etc. The sealing cover is composed of a seat body ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 刘长波谢志远李宏宾沙家超李加臣曹云水李祥臣胡士增胡业刚展延海
Owner 济南海川投资集团有限公司
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