CN110981423A - 陶瓷原料纯净水制浆工艺 - Google Patents

陶瓷原料纯净水制浆工艺 Download PDF

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CN110981423A
CN110981423A CN201911331801.5A CN201911331801A CN110981423A CN 110981423 A CN110981423 A CN 110981423A CN 201911331801 A CN201911331801 A CN 201911331801A CN 110981423 A CN110981423 A CN 110981423A
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谢岳荣
袁鹏
曹以燎
王本江
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Dezhou Lehua Ceramic Sanitary Ware Co ltd
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Abstract

陶瓷原料纯净水制浆工艺,合成陶瓷原料,将陶瓷原料进行粉碎、研磨和筛分,得到陶瓷原料粉备用;自来水经过一级石英砂和活性碳的过滤,然后再经过阴阳离子交换树脂过滤,最后经过反渗透过滤,得到去离子水,将陶瓷原料粉与去离子水按照1:5的重量比混合成浆料,同时向浆料中加入水玻璃、纯碱和减水剂,搅拌均匀后静置8~12天;对浆料加热熔融,并将熔融后的浆料注入到成型模具中,然后对模具中的坯料进行快速降温使得坯料冷凝成型。本发明工艺得到的纯净水浆料的干燥收缩率有小幅度降低,干坯抗折强度有较明显提高,提升幅度达13.2%,而且本发明制浆工艺能显著减少水玻璃用量,减轻碱皮现象和对模具的腐蚀,有效提高了浆料干抗强度。

Description

陶瓷原料纯净水制浆工艺
技术领域
本发明涉及卫生陶瓷生产技术领域,具体涉及一种陶瓷原料纯净水制浆工艺。
背景技术
卫生陶瓷是卫生间、厨房和试验室等场所用的带釉陶瓷制品,也称卫生洁具。制浆是卫生陶瓷生产中的核心工序,目前制浆采用的都是自来水,自来水由于水质硬度过高,主要是钙、镁、氯离子和硫酸根离子影响,在很大程度上影响了泥浆的解凝过程,导致在球浆和调浆过程中加入较大比例的碱性解凝剂,从而坯体干燥过程中在表面析出大量可溶性晶体物质,在坯层内部也会残留较多,如果在下道工序不把表层物质砂洗干净,会直接影响雾化釉颗粒在坯体表面的吸附,并阻碍坯体在烧成过程的氧化反应,排气受阻。因此,制浆的水质不仅对外观实物质量造成影响,还会造成釉面缺陷,例如脱釉和毛孔等。
发明内容
本发明针对现有技术的不足,提供了一种陶瓷原料纯净水制浆工艺。
本发明解决其技术问题所采用的技术方案是:
一种陶瓷原料纯净水制浆工艺,首先对自来水进行三级过滤得到去离子水,然后与陶瓷原料粉混合制成浆料,具体工艺步骤如下:
(1)按照如下的成分和质量分数混合成陶瓷原料:粘土58~78份;石英30~40份;风化石20~25份;蛋白石13~20份;氧化锌14~20份;二氧化钛2~28份;氧化锆6~10份;氮化硼16~22份;碳纤维8~15份;
(2)将陶瓷原料进行粉碎、研磨和筛分,得到陶瓷原料粉备用;
(3)自来水经过一级石英砂和活性碳的过滤,然后再经过阴阳离子交换树脂过滤,最后经过反渗透过滤,得到去离子水;
(4)将陶瓷原料粉与去离子水按照1:5的重量比混合成浆料,同时向浆料中加入水玻璃、纯碱和减水剂,搅拌均匀后静置8~12天;
(5)对浆料加热熔融,并将熔融后的浆料注入到成型模具中,然后对模具中的坯料进行快速降温使得坯料冷凝成型;
(6)将成型后的坯料放在90~95℃的环境下进行干燥,直至坯料中的含水量低于2.3%。
本发明工艺得到的纯净水浆料的干燥收缩率有小幅度降低,大约0.2%左右,但干坯抗折强度有较明显提高,从3.253.68MPa提高到3.68MPa,提升幅度达13.2%,而且本发明制浆工艺能显著减少水玻璃用量,减轻碱皮现象和对模具的腐蚀,有效提高了浆料干抗强度。
具体实施方式
一种陶瓷原料纯净水制浆工艺,首先对自来水进行三级过滤得到去离子水,然后与陶瓷原料粉混合制成浆料,具体工艺步骤如下:
(1)按照如下的成分和质量分数混合成陶瓷原料:粘土58~78份;石英30~40份;风化石20~25份;蛋白石13~20份;氧化锌14~20份;二氧化钛2~28份;氧化锆6~10份;氮化硼16~22份;碳纤维8~15份;
(2)将陶瓷原料进行粉碎、研磨和筛分,得到陶瓷原料粉备用;
(3)自来水经过一级石英砂和活性碳的过滤,然后再经过阴阳离子交换树脂过滤,最后经过反渗透过滤,得到去离子水;
(4)将陶瓷原料粉与去离子水按照1:5的重量比混合成浆料,同时向浆料中加入水玻璃、纯碱和减水剂,搅拌均匀后静置8~12天;
(5)对浆料加热熔融,并将熔融后的浆料注入到成型模具中,然后对模具中的坯料进行快速降温使得坯料冷凝成型;
(6)将成型后的坯料放在90~95℃的环境下进行干燥,直至坯料中的含水量低于2.3%。
对本发明纯净水浆料和自来水浆料进行实验比对,结果如下:
浆料参数和物理性能对比检测
下球前检测印模纯净水电导率20-50μs/cm,自来水电导率800-1100μs/cm
Figure RE-354260DEST_PATH_IMAGE002
化学成分
(1)
Figure RE-490974DEST_PATH_IMAGE004
(2)在参数调到基本一致的情况下,纯净水浆的干燥收缩率有小幅度降低(0.2%左右),但干坯抗折强度有较明显提高(从3.25提高到3.68MPa,提升幅度达13.2%);
(3)此次试验结果和前期试验结果基本吻合。纯净水浆综合性能优于自来水浆。其突出的性能优势是:能显著减少水玻璃用量,减轻碱皮现象和对模具的腐蚀,并且对浆料干抗强度的提升有一定帮助;
(4)成本增加不明显。在四条线满产的情况下,纯净水球浆需要的费用为3692.08+880.093=4572.17元/天。如果按照目前的产量,需要的费用为2286.085元/天。折合成浆料成本,大约增加4.3元/吨干料。以下是经济效益核算:
纯净水球浆的经济效益分析评估
以目前印模车间所使用的净化水装置进行核算如下:
1)印模车间水处理装置的处理能力为3立方/小时,每天处理10小时,一天处理30立方,处理效率是70%,无需人工成本;
2)一级过滤为石英砂和活性碳,每两年换一次,费用约1.5万元;折合每小时为15000÷660÷10=2.27元(一年按11个月算),则处理1立方水费用为2.27÷3=0.758元;
二级过滤为精密过滤器,每两个月换一次,费用150元左右;折合每小时为150÷60÷10=0.25元,则处理1立方水费用为0.25÷3=0.083元;
三级过滤为反渗透过滤,每7年换一次,费用约4万元;折合每小时为40000÷7÷330÷10=1.732元,则处理1立方水费用1.732÷3=0.577元;
3)因此,纯净水设备日产维护和辅材损耗费用为0.758+0.083+0.577=1.418元;
4)净化水设备每月的用电量为4000度,按平均电费0.82元/度,处理1立方水的电费为4000*0.82÷30÷10÷3=3.64元;
5)按照四条线满产核算,每天需球浆2.5+3.5+4+4=14球.每天化浆4+4+4.5+4.5=17池;则每天需水量为14*10+17*2=174方;
6)因此,如果用纯净水下球每天的水处理费用为(1.418+3.64)*174=880.093元。
7)使用纯净水球浆后水玻璃加入量有比较明显的降低,通过下40T大球试验,水玻璃加入量可以减少0.38%,纯碱减少0.13%,增加了0.105%减水剂。
Figure RE-DEST_PATH_IMAGE006
算上水处理费用,在四条线满产的情况下,纯净水球浆需要的费用为3692.08+880.093=4572.17元/天。如果按照目前的产量,需要的费用为2286.085元/天。折合成浆料单位成本,大约增加4.3元/吨干料。
纯净水球浆对后期生产工艺的改善和对模具寿命的提升是必然的,这些无形成本目前还无法评估,但这些受益在生产过程中会逐渐凸显出来。

Claims (1)

1.一种陶瓷原料纯净水制浆工艺,其特征是首先对自来水进行三级过滤得到去离子水,然后与陶瓷原料粉混合制成浆料,具体工艺步骤如下:
(1)按照如下的成分和质量分数混合成陶瓷原料:粘土58~78份;石英30~40份;风化石20~25份;蛋白石13~20份;氧化锌14~20份;二氧化钛2~28份;氧化锆6~10份;氮化硼16~22份;碳纤维8~15份;
(2)将陶瓷原料进行粉碎、研磨和筛分,得到陶瓷原料粉备用;
(3)自来水经过一级石英砂和活性碳的过滤,然后再经过阴阳离子交换树脂过滤,最后经过反渗透过滤,得到去离子水;
(4)将陶瓷原料粉与去离子水按照1:5的重量比混合成浆料,同时向浆料中加入水玻璃、纯碱和减水剂,搅拌均匀后静置8~12天;
(5)对浆料加热熔融,并将熔融后的浆料注入到成型模具中,然后对模具中的坯料进行快速降温使得坯料冷凝成型;
(6)将成型后的坯料放在90~95℃的环境下进行干燥,直至坯料中的含水量低于2.3%。
CN201911331801.5A 2019-12-21 2019-12-21 陶瓷原料纯净水制浆工艺 Pending CN110981423A (zh)

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