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Preparation method of high-stability stemming for tap hole of COREX furnace
The invention discloses a preparation method of high-stability stemming for a tap hole of a COREX furnace, which comprises the steps of weighing, proportioning and mixing raw materials, mixing the raw materials according to a normal stemming production ratio, uniformly mixing and stirring in a forced stirrer for 3-5 minutes, ensuring sufficient mixing property, and eliminating operation segregation existing between aggregate and fine powder; stirring the mixed materials for enough time, and adding a binding agent, wherein the temperature of the binding agent is controlled to be 25-30 DEG C, and the binding agent is formed by compounding tar and resin; grinding and stirring the combined stemming through an edge runner, and conducting grinding and stirring for 20-25 minutes, wherein the temperature of the stemming needs to be controlled to be about 25-30 DEG C; and extruding and forming the stemming, and pouring the ground and stirred stemming into a stemming extruding machine to be extruded, wherein the stemming packaged by a plastic film must be subjected to an appropriate stemming fermentation process for 24-48 h so as to stabilize good infiltration between the binding agent and the raw materials, and the stemming produced through the steps comprises, by mass, 25-29% of Al2O3, 17-21% of SiO2, 21-26% of SiC, 3-7% of Si3N4 and 5-7% of F.C.
本发明公开了一种COREX炉出铁口高稳定性炮泥制备方法，将原料进行称量配比并混合，原料按正常生产炮泥的比例进行混合，在强制搅拌机中混匀搅拌3‑5min，保证充分的混合性，消除骨料与细粉之间存在的运行偏析；对混合后的物料搅拌足够时间，加入结合剂，结合剂的温度控制在25‑30℃，结合剂选用焦油和树脂复合的结合剂；采用轮碾机对结合后的炮泥进行碾压搅拌，碾压搅拌20‑25分钟，泥料的温度需控制于25‑30℃左右；炮泥挤出成型，将碾压搅拌好的炮泥倒入挤泥机进行挤出，塑料薄膜包装好的炮泥必须进行24～48h的合适的醒泥过程，以稳定结合剂与原料之间良好的侵润性，经过上述步骤生产的炮泥质量百分百成分为：Al2O325‑29%、SiO217‑21%、SiC 21‑26%、Si3N43‑7%、F.C 5‑7%。
Preparation method of high-stability stemming for tap hole of COREX furnace
The invention discloses a preparation method of high-stability stemming for a tap hole of a COREX furnace, which comprises the steps of weighing, proportioning and mixing raw materials, mixing the raw materials according to a normal stemming production ratio, uniformly mixing and stirring in a forced stirrer for 3-5 minutes, ensuring sufficient mixing property, and eliminating operation segregation existing between aggregate and fine powder; stirring the mixed materials for enough time, and adding a binding agent, wherein the temperature of the binding agent is controlled to be 25-30 DEG C, and the binding agent is formed by compounding tar and resin; grinding and stirring the combined stemming through an edge runner, and conducting grinding and stirring for 20-25 minutes, wherein the temperature of the stemming needs to be controlled to be about 25-30 DEG C; and extruding and forming the stemming, and pouring the ground and stirred stemming into a stemming extruding machine to be extruded, wherein the stemming packaged by a plastic film must be subjected to an appropriate stemming fermentation process for 24-48 h so as to stabilize good infiltration between the binding agent and the raw materials, and the stemming produced through the steps comprises, by mass, 25-29% of Al2O3, 17-21% of SiO2, 21-26% of SiC, 3-7% of Si3N4 and 5-7% of F.C.
本发明公开了一种COREX炉出铁口高稳定性炮泥制备方法，将原料进行称量配比并混合，原料按正常生产炮泥的比例进行混合，在强制搅拌机中混匀搅拌3‑5min，保证充分的混合性，消除骨料与细粉之间存在的运行偏析；对混合后的物料搅拌足够时间，加入结合剂，结合剂的温度控制在25‑30℃，结合剂选用焦油和树脂复合的结合剂；采用轮碾机对结合后的炮泥进行碾压搅拌，碾压搅拌20‑25分钟，泥料的温度需控制于25‑30℃左右；炮泥挤出成型，将碾压搅拌好的炮泥倒入挤泥机进行挤出，塑料薄膜包装好的炮泥必须进行24～48h的合适的醒泥过程，以稳定结合剂与原料之间良好的侵润性，经过上述步骤生产的炮泥质量百分百成分为：Al2O325‑29%、SiO217‑21%、SiC 21‑26%、Si3N43‑7%、F.C 5‑7%。
Preparation method of high-stability stemming for tap hole of COREX furnace
COREX炉出铁口高稳定性炮泥制备方法
TIAN GUO (author) / WU TA (author) / GUO QINGHUA (author)
2021-12-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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