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Production process and production equipment of high-purity corundum cast brick
The invention discloses a production process and production equipment of a high-purity corundum cast brick. The method comprises the processes of mixed material preparation, melting, casting, heat preservation annealing and demolding. The high-purity corundum cast brick is prepared from the following components in parts by weight: 98-99.5 parts of Al2O3, 0.1-0.8 parts of Na2O, 0.1-0.5 parts of SiO2, 0-0.1 parts of CaO + MgO and 0-0.1 parts of Fe2O3 + TiO2. The melting process comprises the following steps: 1/2-3/5 of molten materials are reserved in a furnace body, and clinker is directly poured into the center of the furnace body through a hopper; the raw materials are conveyed to one or more points of the edge of the highest liquid level of the furnace body at the speed of 30-50 kg/s after clinker is poured into the furnace body; before the raw materials enter the furnace body, the raw materials are mixed and then extruded into tablets, the pressure for extruding the raw materials is100-120 MPa, the extrusion time is 5-10 min, and the thickness of the prepared tablets is 1-2.5 cm; the tablets are heated to 1200-1600 DEG C in a microwave oven; the heated tablets are crushed intoparticles with the particle size of 5-8mm; and the crushed particles are poured into the range 10-25cm away from the side wall of the furnace body. The process and the equipment can effectively improve the product quality and improve the production efficiency.
一种高纯度刚玉熔铸砖生产工艺及其生产设备，包括混合料配制、熔化工序、浇铸工序、保温退火工序、脱模加工工序，配料按重量份计算AlO98‑99.5份，NaO 0.1‑0.8份，SiO0.1‑0.5份，CaO+MgO 0‑0.1份，FeO+TiO0‑0.1份；其中熔化工序：炉体中保留1/2‑3/5的熔融物料，熟料通过料斗直接倒入炉体中央处；生料待熟料倒入后以30‑50kg/s的速率送到炉体最高液位的边沿的一个点或是多个点处；生料在进入炉体前，先混合，再挤压制成压片，挤压生料的压力在100～120MPa，挤压时间5‑10min，制成压片厚度为1‑2.5cm；压片在微波炉中加热至1200‑1600℃；加热后的压片破碎成5‑8mm颗粒；破碎颗粒倒入距离炉体侧壁10‑25cm范围内。该工艺和设备能够有效提高产品质量，提高生产效率。
Production process and production equipment of high-purity corundum cast brick
The invention discloses a production process and production equipment of a high-purity corundum cast brick. The method comprises the processes of mixed material preparation, melting, casting, heat preservation annealing and demolding. The high-purity corundum cast brick is prepared from the following components in parts by weight: 98-99.5 parts of Al2O3, 0.1-0.8 parts of Na2O, 0.1-0.5 parts of SiO2, 0-0.1 parts of CaO + MgO and 0-0.1 parts of Fe2O3 + TiO2. The melting process comprises the following steps: 1/2-3/5 of molten materials are reserved in a furnace body, and clinker is directly poured into the center of the furnace body through a hopper; the raw materials are conveyed to one or more points of the edge of the highest liquid level of the furnace body at the speed of 30-50 kg/s after clinker is poured into the furnace body; before the raw materials enter the furnace body, the raw materials are mixed and then extruded into tablets, the pressure for extruding the raw materials is100-120 MPa, the extrusion time is 5-10 min, and the thickness of the prepared tablets is 1-2.5 cm; the tablets are heated to 1200-1600 DEG C in a microwave oven; the heated tablets are crushed intoparticles with the particle size of 5-8mm; and the crushed particles are poured into the range 10-25cm away from the side wall of the furnace body. The process and the equipment can effectively improve the product quality and improve the production efficiency.
一种高纯度刚玉熔铸砖生产工艺及其生产设备，包括混合料配制、熔化工序、浇铸工序、保温退火工序、脱模加工工序，配料按重量份计算AlO98‑99.5份，NaO 0.1‑0.8份，SiO0.1‑0.5份，CaO+MgO 0‑0.1份，FeO+TiO0‑0.1份；其中熔化工序：炉体中保留1/2‑3/5的熔融物料，熟料通过料斗直接倒入炉体中央处；生料待熟料倒入后以30‑50kg/s的速率送到炉体最高液位的边沿的一个点或是多个点处；生料在进入炉体前，先混合，再挤压制成压片，挤压生料的压力在100～120MPa，挤压时间5‑10min，制成压片厚度为1‑2.5cm；压片在微波炉中加热至1200‑1600℃；加热后的压片破碎成5‑8mm颗粒；破碎颗粒倒入距离炉体侧壁10‑25cm范围内。该工艺和设备能够有效提高产品质量，提高生产效率。
Production process and production equipment of high-purity corundum cast brick
一种高纯度刚玉熔铸砖生产工艺及其生产设备
ZHU SHAOFENG (author) / ZHU ANLONG (author) / WANG YIN (author) / ZHANG SHENGYUAN (author)
2020-08-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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