CN110746195B - 免醒可塑料生产工艺 - Google Patents
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- 239000000463 material Substances 0.000 title claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002253 acid Substances 0.000 claims abstract description 16
- 229910052742 iron Inorganic materials 0.000 claims abstract description 14
- 238000005406 washing Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000000227 grinding Methods 0.000 claims abstract description 8
- 229910052580 B4C Inorganic materials 0.000 claims abstract description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 5
- 239000000440 bentonite Substances 0.000 claims abstract description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 5
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 5
- 239000010431 corundum Substances 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 239000008139 complexing agent Substances 0.000 claims description 9
- 229940120146 EDTMP Drugs 0.000 claims description 6
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical group OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 abstract description 7
- 239000011819 refractory material Substances 0.000 abstract description 3
- -1 iron ions Chemical class 0.000 description 10
- 230000002618 waking effect Effects 0.000 description 8
- 206010016766 flatulence Diseases 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 229920000137 polyphosphoric acid Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
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Abstract
一种免醒可塑料生产工艺，属于耐火材料生产技术领域。其特征在于包括如下步骤：a.备料；b.将铝矾土进行破碎后研磨成细粉，然后通过酸洗法初步除铁，得到处理后的铝矾土；c.破碎：将碳化硼、铬刚玉、膨润土和氧化铝进行破碎和研磨；d.混合输出：将所有基料和辅料充分混合得到最终成品，并将成品通过成料输送带输出进行包装即可。本发明所述的一种免醒可塑料生产工艺，能够在采用低阶铝矾土为原材料的情况下，生产一种免除醒料步骤的可塑料，降低生产成本的同时提高施工质量和生产效率。
Description
技术领域
本发明属于耐火材料生产技术领域，具体涉及一种免醒可塑料生产工艺。
背景技术
可塑耐火物是由粒状和粉状物料与可塑黏土等结合剂和增塑剂配合后，再加入少量水分，经充分混炼所组成的一种呈硬泥膏状并在较长时间内保持较高可塑性的不定型耐火材料。
可塑料在使用时，应将基料和辅料充分混合，然后进行醒料步骤才可使用。醒料步骤的原理如下：由于可塑料的基料中必不可少的原料为铝矾土，而铝矾土中含有大量游离态的铁离子，当基料与含酸的辅料混合时会释放出气体，醒料步骤就是为了将混合后产生的气体充分释放后，在进行施工操作。现有可塑料在施工时，如果不经过充分的醒料，会在使用时出现胀气鼓包现象，影响施工质量。醒料步骤需要经验丰富的熟练工人才能妥善进行，而且该步骤耗时耗力，大幅增加了施工难度和质量不稳定性。
如何免除醒料步骤、节约工时并节省人力是需要在可塑料生产源头解决的重要技术问题。根据铝矾土的等级不同，游离态铁离子的含量不同。如果选取游离态铁离子含量低的高等级铝矾土，可以缩短甚至免除醒料步骤，但是高等级铝矾土售价高昂，会直接导致生产成本过高，得不偿失。现有技术中，为降低低等级铝矾土中的金属杂质，尤其是铁离子的含量，往往采用酸洗的方式对原材料进行预处理，但是，即便采用最为合理的工艺降低铁离子也仅能达到50％左右的去除量，铝矾土中仍留存大量铁离子，无法达到制得的可塑料免醒料的目的。
鉴于此，申请人设计了一种免醒可塑料生产工艺，能够在采用低阶铝矾土为原材料的情况下，生产一种免除醒料步骤的可塑料，降低生产成本的同时提高施工质量和生产效率。
发明内容
本发明所要解决的技术问题是提供一种免醒可塑料生产工艺，能够在采用低阶铝矾土为原材料的情况下，生产一种免除醒料步骤的可塑料，降低生产成本的同时提高施工质量和生产效率。
为解决上述技术问题，本发明的技术方案是：提供一种免醒可塑料生产工艺，其特征在于包括如下步骤：
a.备料：按照如下质量比例准备基料并进行称重：
准备辅料：浓度为3-3.5g/cm3的磷酸二氢铝溶液；
基料与辅料的质量比为15-20:1；
b.将铝矾土进行破碎后研磨成细粉，然后通过酸洗法初步除铁，得到处理后的铝矾土；
c.破碎：将碳化硼、铬刚玉、膨润土和氧化铝进行破碎和研磨；
d.混合输出：将所有基料和辅料充分混合得到最终成品，并将成品通过成料输送带输出进行包装即可。
优选的，所述络合剂为乙二胺四甲叉膦酸。
优选的，当铝矾土中Fe2O3的含量为1.5-3.5％时，铝矾土和络合剂的质量比为5-6:1。
优选的，所述酸洗法包括如下步骤：
b1.将细粉状的铝矾土与质量分数10-15％的稀酸在90摄氏度的条件下充分混合，反应20-30分钟后固液分离；
b2.将步骤b1中得到的固体物质经过水洗后再次固液分离，得到处理后的铝矾土。
与现有技术相比，本发明的有益效果是：
1.本发明所述的一种免醒可塑料生产工艺，能够在采用低阶铝矾土为原材料的情况下，生产一种免除醒料步骤的可塑料，降低生产成本的同时提高施工质量和生产效率。
2.本发明采用低阶铝矾土，并在制作可塑料之前采用科学合理的酸洗处理方式，能够有效去除50％左右的游离态铁离子；而后，在制备可塑料过程中，选用乙二胺四甲叉膦酸为络合剂，乙二胺四甲叉膦酸为一种有机多元磷酸，能够在高温条件下保持强力的螯合性能，有效包裹游离态的铁离子，隔绝避免其与酸反应，即便不进行额外的醒料步骤，也能避免后续施工过程中产生胀气或鼓包现象。
具体实施方式
下面结合具体实施方式对本发明作进一步详细描述。
本发明所述的一种免醒可塑料生产工艺，包括如下步骤：
a.备料：按照如下质量比例准备基料并进行称重：
准备辅料：浓度为3-3.5g/cm3的磷酸二氢铝溶液；
基料与辅料的质量比为15-20:1；
b.将铝矾土进行破碎后研磨成细粉，然后通过酸洗法初步除铁，得到处理后的铝矾土；
c.破碎：将碳化硼、铬刚玉、膨润土和氧化铝进行破碎和研磨；
d.混合输出：将所有基料和辅料充分混合得到最终成品，并将成品通过成料输送带输出进行包装即可。
所述络合剂为。
当铝矾土中Fe2O3的含量为1.5-3.5％时，铝矾土和络合剂的质量比为5-6:1。
所述酸洗法包括如下步骤：
b1.将细粉状的铝矾土与质量分数10-15％的稀酸在90摄氏度的条件下充分混合，反应20-30分钟后固液分离；
b2.将步骤b1中得到的固体物质经过水洗后再次固液分离，得到处理后的铝矾土基料配比的具体实施例见表一：
本发明所述的一种免醒可塑料生产工艺，能够在采用低阶铝矾土为原材料的情况下，生产一种免除醒料步骤的可塑料，降低生产成本的同时提高施工质量和生产效率。本发明采用低阶铝矾土，并在制作可塑料之前采用科学合理的酸洗处理方式，能够有效去除50％左右的游离态铁离子；而后，在制备可塑料过程中，选用乙二胺四甲叉膦酸为络合剂，乙二胺四甲叉膦酸为一种有机多元磷酸，能够在高温条件下保持强力的螯合性能，有效包裹游离态的铁离子，隔绝避免其与酸反应，即便不进行额外的醒料步骤，也能避免后续施工过程中产生胀气或鼓包现象。
以上所述，仅是本发明的较佳实施例而已，并非是对本发明作其它形式的限制，任何熟悉本专业的技术人员可能利用上述揭示的技术内容加以变更或改型为等同变化的等效实施例。凡是未脱离本发明技术方案内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与改型，仍属于本发明技术方案的保护范围。
Claims (1)
1.一种免醒可塑料生产工艺，其特征在于包括如下步骤：
a.备料：按照如下质量比例准备基料并进行称重：
铝矾土 45-75份；
碳化硼 30-45份；
铬刚玉 15-20份；
氧化铝 10-35份；
活性硅微粉 10-25份；
膨润土 10-25份；
络合剂 5-8份；
准备辅料：浓度为3-3.5g/cm3的磷酸二氢铝溶液；
基料与辅料的质量比为15-20:1；
b.将铝矾土进行破碎后研磨成细粉，然后通过酸洗法初步除铁，得到处理后的铝矾土；
c.破碎：将碳化硼、铬刚玉、膨润土和氧化铝进行破碎和研磨；
d.混合输出：将所有基料和辅料充分混合得到最终成品，并将成品通过成料输送带输出进行包装即可；
所述络合剂为乙二胺四甲叉膦酸；
当铝矾土中Fe2O3的含量为1.5-3.5%时，铝矾土和络合剂的质量比为5-6:1；
所述酸洗法包括如下步骤：
b1.将细粉状的铝矾土与质量分数10-15%的稀酸在90摄氏度的条件下充分混合，反应20-30分钟后固液分离；
b2.将步骤b1中得到的固体物质经过水洗后再次固液分离，得到处理后的铝矾土。
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| CN1119174A (zh) * | 1995-07-21 | 1996-03-27 | 宝山钢铁(集团)公司 | 磷酸盐结合高铝可塑料及其生产方法 |
| EP1535887A1 (en) * | 2002-06-28 | 2005-06-01 | Taiko Refractories Co., Ltd. | Powder composition for castable refractory and premixed material comprising the same, method for applying premixed material and refractory hardened product therefrom |
| CN101157561A (zh) * | 2007-09-05 | 2008-04-09 | 江苏国窑科技有限公司 | 耐磨耐火可塑料 |
| CN106220195A (zh) * | 2016-07-19 | 2016-12-14 | 郑州鑫源防磨耐材有限公司 | 一种耐磨耐火可塑料 |
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| CN1119174A (zh) * | 1995-07-21 | 1996-03-27 | 宝山钢铁(集团)公司 | 磷酸盐结合高铝可塑料及其生产方法 |
| EP1535887A1 (en) * | 2002-06-28 | 2005-06-01 | Taiko Refractories Co., Ltd. | Powder composition for castable refractory and premixed material comprising the same, method for applying premixed material and refractory hardened product therefrom |
| CN101157561A (zh) * | 2007-09-05 | 2008-04-09 | 江苏国窑科技有限公司 | 耐磨耐火可塑料 |
| CN106220195A (zh) * | 2016-07-19 | 2016-12-14 | 郑州鑫源防磨耐材有限公司 | 一种耐磨耐火可塑料 |
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