CN111635239A - 一种耐火砖的高效生产方法 - Google Patents
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- 239000011449 brick Substances 0.000 title claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000011265 semifinished product Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 15
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 229910052593 corundum Inorganic materials 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- 238000004901 spalling Methods 0.000 claims description 6
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000004898 kneading Methods 0.000 claims description 3
- 238000005204 segregation Methods 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 238000012797 qualification Methods 0.000 abstract description 2
- 239000011819 refractory material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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Abstract
本发明公开了一种耐火砖的高效生产方法,属于耐火砖技术领域,其包括以下步骤:S1、选料,采用高铝矾土熟料做主料,叶腊石细粉,结合粘土和纸浆;S2、混练,将S1中原料按比例投入粉碎机中,然后将粉碎后原料加入混炼机中混练25‑40min得到泥料。该一种耐火砖的高效生产方法,当日用料需要当日制作,成型过程的压力达到140MPa,半成品气孔率应≤23%,在耐火砖烧制之前会先进行干燥,保证半成品中参与水分小于2%,可以保证半成品的合格率,同时在半成品成型后会进行检验,可以及时对半成品进行回收再利用,可以在一定程度上保证耐火砖加工过程的残品率较低,可以在一定程度上保证耐火砖加工过程的高效,同时可以降低对原料的浪费。
Description
技术领域
本发明属于耐火砖技术领域,具体为一种耐火砖的高效生产方法。
背景技术
耐火材料一般分为两种,即不定型耐火材料和定型耐火材料。不定型耐火材料也叫浇注料,是由多种骨料或集料和一种或多种粘和剂组成的混合粉状颗料,使用时必须和一种或多种液体配合搅拌均匀,具有较强的流动性。定型耐火材料一般指耐火砖,其形状有标准规则,也可以根据需要筑切时临时加工。
现有耐火砖的加工过程中由于成品残品率较高,导致耐火砖整体的生产效率不够理想,同时导致原料的浪费量大大增加,使产品的经济效益不够理想。
发明内容
(一)解决的技术问题
为了克服现有技术的上述缺陷,本发明提供了一种耐火砖的高效生产方法,解决了现有耐火砖的加工过程由于成品残品率较高,导致耐火砖整体的生产效率不够理想,同时导致原料浪费量增加的问题。
(二)技术方案
为实现上述目的,本发明提供如下技术方案:一种耐火砖的高效生产方法,包括以下步骤:
S1、选料,采用高铝矾土熟料做主料,叶腊石细粉,结合粘土和纸浆;
S2、混练,将S1中原料按比例投入粉碎机中,然后将粉碎后原料加入混炼机中混练25-40min得到泥料;
S3、成型及检验,将S2中泥料投入压球机中压制成泥料球,将泥料球送到压砖机模腔中压制成型得到半成品,抽检半成品是否有层裂、疏松、偏析、溶洞、边角不完整等现象,发现问题,及时解决,确保半成品的成品率;
S4、干燥,应在隧道干燥器内进行干燥;
S5、烧成及检验,将S4中干燥后的半成品放入加热炉内加热成型,随后取出冷却至室温即可得到成品耐火砖,然后质检人员对耐火砖的外观尺寸、理化指标、熔洞和层裂等指标的检测。
作为本发明的进一步方案:S1中高铝矾土熟料露天堆放时间较长,高铝矾土熟料长时间放置后内部会混有杂质,在投产前需要对高铝矾土熟料内部杂质和杂物进行清除,叶腊石细粉采用325目筛进行筛取,其成分主要为为Al203≥18%、Fe2O3<0.5%、K2O<0.3%,结合粘士(山西软质粘土190目)其主要成分为Al2O3≥34%、Fe203<1.0%、K20<0.3%。
作为本发明的进一步方案:S2中混练后原料中不得有泥团和干料,混练时间不得少于25min,当日用料需要当日制作。
作为本发明的进一步方案:耐火砖的成型压力应达到140MPa,S3中压砖机采用250t以上的磨擦压砖机,半成品气孔率应≤23%。
作为本发明的进一步方案:S4中隧道干燥器热风温度为140-160℃,废气温度为60-90℃,干燥后半成品中残余水分应小于2%。
作为本发明的进一步方案:S5中加热炉中烧结温度为1400-1430℃,同时耐火砖在出窑时工作人员应轻拿轻放,降低人为破损率。
(三)有益效果
与现有技术相比,本发明的有益效果在于:
该一种耐火砖的高效生产方法,高铝矾土熟料在使用之前会除杂,同时混料时间不得少于25min,当日用料需要当日制作,成型过程的压力达到140MPa,半成品气孔率应≤23%,在耐火砖烧制之前会先进行干燥,保证半成品中参与水分小于2%,可以保证半成品的合格率,同时在半成品成型后会进行检验,可以及时对半成品进行回收再利用,可以在一定程度上保证耐火砖加工过程的残品率较低,可以在一定程度上保证耐火砖加工过程的高效,同时可以降低对原料的浪费。
具体实施方式
下面结合具体实施方式对本专利的技术方案作进一步详细地说明。
本发明提供一种技术方案:一种耐火砖的高效生产方法,包括以下步骤:
S1、选料,采用高铝矾土熟料做主料,叶腊石细粉,结合粘土和纸浆;
S2、混练,将S1中原料按比例投入粉碎机中,然后将粉碎后原料加入混炼机中混练25-40min得到泥料;
S3、成型及检验,将S2中泥料投入压球机中压制成泥料球,将泥料球送到压砖机模腔中压制成型得到半成品,抽检半成品是否有层裂、疏松、偏析、溶洞、边角不完整等现象,发现问题,及时解决,确保半成品的成品率;
S4、干燥,应在隧道干燥器内进行干燥;
S5、烧成及检验,将S4中干燥后的半成品放入加热炉内加热成型,随后取出冷却至室温即可得到成品耐火砖,然后质检人员对耐火砖的外观尺寸、理化指标、熔洞和层裂等指标的检测。
S1中高铝矾土熟料露天堆放时间较长,高铝矾土熟料长时间放置后内部会混有杂质,在投产前需要对高铝矾土熟料内部杂质和杂物进行清除,叶腊石细粉采用325目筛进行筛取,其成分主要为为Al203≥18%、Fe2O3<0.5%、K2O<0.3%,结合粘士(山西软质粘土190目)其主要成分为Al2O3≥34%、Fe203<1.0%、K20<0.3%。
S2中混练后原料中不得有泥团和干料,混练时间不得少于25min,当日用料需要当日制作。
耐火砖的成型压力应达到140MPa,S3中压砖机采用250t以上的磨擦压砖机,半成品气孔率应≤23%。
S4中隧道干燥器热风温度为140-160℃,废气温度为60-90℃,干燥后半成品中残余水分应小于2%。
S5中加热炉中烧结温度为1400-1430℃,同时耐火砖在出窑时工作人员应轻拿轻放,降低人为破损率。
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以通过具体情况理解上述术语在本发明中的具体含义。
上面对本专利的较佳实施方式作了详细说明,但是本专利并不限于上述实施方式,在本领域的普通技术人员所具备的知识范围内,还可以在不脱离本专利宗旨的前提下作出各种变化。
Claims (6)
1.一种耐火砖的高效生产方法,其特征在于,包括以下步骤:
S1、选料,采用高铝矾土熟料做主料,叶腊石细粉,结合粘土和纸浆;
S2、混练,将S1中原料按比例投入粉碎机中,然后将粉碎后原料加入混炼机中混练25-40min得到泥料;
S3、成型及检验,将S2中泥料投入压球机中压制成泥料球,将泥料球送到压砖机模腔中压制成型得到半成品,抽检半成品是否有层裂、疏松、偏析、溶洞、边角不完整等现象,发现问题,及时解决,确保半成品的成品率;
S4、干燥,应在隧道干燥器内进行干燥;
S5、烧成及检验,将S4中干燥后的半成品放入加热炉内加热成型,随后取出冷却至室温即可得到成品耐火砖,然后质检人员对耐火砖的外观尺寸、理化指标、熔洞和层裂等指标的检测。
2.根据权利要求1所述的一种耐火砖的高效生产方法,其特征在于:S1中高铝矾土熟料露天堆放时间较长,高铝矾土熟料长时间放置后内部会混有杂质,在投产前需要对高铝矾土熟料内部杂质和杂物进行清除,叶腊石细粉采用325目筛进行筛取,其成分主要为为Al203≥18%、Fe2O3<0.5%、K2O<0.3%,结合粘士(山西软质粘土190目)其主要成分为Al2O3≥34%、Fe203<1.0%、K20<0.3%。
3.根据权利要求1所述的一种耐火砖的高效生产方法,其特征在于:S2中混练后原料中不得有泥团和干料,混练时间不得少于25min,当日用料需要当日制作。
4.根据权利要求1所述的一种耐火砖的高效生产方法,其特征在于:耐火砖的成型压力应达到140MPa,S3中压砖机采用250t以上的磨擦压砖机,半成品气孔率应≤23%。
5.根据权利要求1所述的一种耐火砖的高效生产方法,其特征在于:S4中隧道干燥器热风温度为140-160℃,废气温度为60-90℃,干燥后半成品中残余水分应小于2%。
6.根据权利要求1所述的一种耐火砖的高效生产方法,其特征在于:S5中加热炉中烧结温度为1400-1430℃,同时耐火砖在出窑时工作人员应轻拿轻放,降低人为破损率。
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Cited By (2)
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| CN113883884A (zh) * | 2021-10-14 | 2022-01-04 | 南京钢铁股份有限公司 | 一种竖炉导风墙的墙砖结构及其制备工艺 |
| CN115108810A (zh) * | 2022-06-01 | 2022-09-27 | 江苏苏嘉集团新材料有限公司 | 一种耐火砖加工用具有防护效果的制造方法 |
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