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Special castable for boiler fluidized bed hearth and preparation method thereof
The invention discloses a special castable for a boiler fluidized bed hearth and a preparation method thereof. The castable is prepared from 50-70% of special bauxite, 10-20% of sub-white corundum, 8-15% of silicon carbide micro powder, 4-8% of zirconite, 5-10% of a wear-resistant agent, 3-7% of silicon micro powder, 3-5% of alpha alumina micro powder, 3-7% of a binding agent, 0.07-0.1% of explosion-proof fibers, 0.1-0.15% of a water reducer, 0.06-0.12% of a flowing agent, 0.003-0.01% of a coagulant and 0.07-0.1% of a quick drying agent. The preparation method comprises the following steps of:a, weighing the used raw materials in proportion, adding the weighed raw materials into a stirring pot, carrying out dry stirring for 1-2 minutes, then adding 4.5-5.5% of water, carrying out wet stirring for 3 minutes, measuring a flow value, enabling the flow value to be 60-90, adjusting the adding amount of water when the flow value cannot reach 60-90, adding 5mL of water each time, carrying out pouring when the flow value reaches the standard, and vibrating for 30-60 seconds until there are no bubbles and the surface bleeds; and b, placing a small sample for 24 hours, removing the mold andmaintaining for 24 hours, drying at 110 DEG C and roasting at 1100 DEG C, and making various related indexes.
本发明公开了一种锅炉流化床炉膛专用浇注料及其制备方法，该浇注料由特级铝矾土料50~70%、亚白刚玉10~20%、碳化硅微粉8~15%、锆英石4~8%、耐磨剂5~10%、硅微粉3~7%、阿尔法氧化铝微粉3~5%、结合剂3~7%、防爆纤维0.07~0.1%、减水剂0.1~0.15%、流动剂0.06~0.12%、促凝剂0.003~0.01%和快干剂0.07~0.1%组合而成。该制备方法包括以下步骤：a、所用原料按配比称重，加入搅拌锅干拌1~2min，然后加水4.5~5.5%，进行湿拌3min，测流动值，使之流动值60~90，达不到时调整水加入量，每次加入5mL，达标时进行浇注，振动30~60S，以不冒气泡表面泛浆为标准；b、小样放置24h，拆模保养24h后，进行110℃烘干和1100℃焙烧，之后做各种相关指标。
Special castable for boiler fluidized bed hearth and preparation method thereof
The invention discloses a special castable for a boiler fluidized bed hearth and a preparation method thereof. The castable is prepared from 50-70% of special bauxite, 10-20% of sub-white corundum, 8-15% of silicon carbide micro powder, 4-8% of zirconite, 5-10% of a wear-resistant agent, 3-7% of silicon micro powder, 3-5% of alpha alumina micro powder, 3-7% of a binding agent, 0.07-0.1% of explosion-proof fibers, 0.1-0.15% of a water reducer, 0.06-0.12% of a flowing agent, 0.003-0.01% of a coagulant and 0.07-0.1% of a quick drying agent. The preparation method comprises the following steps of:a, weighing the used raw materials in proportion, adding the weighed raw materials into a stirring pot, carrying out dry stirring for 1-2 minutes, then adding 4.5-5.5% of water, carrying out wet stirring for 3 minutes, measuring a flow value, enabling the flow value to be 60-90, adjusting the adding amount of water when the flow value cannot reach 60-90, adding 5mL of water each time, carrying out pouring when the flow value reaches the standard, and vibrating for 30-60 seconds until there are no bubbles and the surface bleeds; and b, placing a small sample for 24 hours, removing the mold andmaintaining for 24 hours, drying at 110 DEG C and roasting at 1100 DEG C, and making various related indexes.
本发明公开了一种锅炉流化床炉膛专用浇注料及其制备方法，该浇注料由特级铝矾土料50~70%、亚白刚玉10~20%、碳化硅微粉8~15%、锆英石4~8%、耐磨剂5~10%、硅微粉3~7%、阿尔法氧化铝微粉3~5%、结合剂3~7%、防爆纤维0.07~0.1%、减水剂0.1~0.15%、流动剂0.06~0.12%、促凝剂0.003~0.01%和快干剂0.07~0.1%组合而成。该制备方法包括以下步骤：a、所用原料按配比称重，加入搅拌锅干拌1~2min，然后加水4.5~5.5%，进行湿拌3min，测流动值，使之流动值60~90，达不到时调整水加入量，每次加入5mL，达标时进行浇注，振动30~60S，以不冒气泡表面泛浆为标准；b、小样放置24h，拆模保养24h后，进行110℃烘干和1100℃焙烧，之后做各种相关指标。
Special castable for boiler fluidized bed hearth and preparation method thereof
锅炉流化床炉膛专用浇注料及其制备方法
SU YANFANG (author) / SU YANBIN (author) / FENG CHANGHAI (author) / WANG YING (author) / CHEN LIWEI (author) / ZHANG PENGFEI (author) / QIN JIANYU (author) / DU GUOWEI (author)
2021-02-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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