CN107185388A - 一种车载净化球 - Google Patents
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Abstract
本发明公开了一种车载净化球,该净化球由以下组分组成:80~120目的白水泥15~30重量份、80~120目的硅藻土25~40重量份、280~320目的熟石灰6~20重量份、300~340目的海泡石粉4~15重量份、粒径<20nm的白炭黑3~7重量份、180~220目的膨润土2~9重量份、粒度为30~50nm的电气石粉2~4重量份、粒度为5~10nm的纳米银溶液0.05~0.5重量份、80~120目的聚乙烯醇粉3~7重量份、硼砂2~5重量份;通过配料、一次淋水圆盘造粒、振动筛分、二次喷硼砂造粒、振动筛分得到粒径4~10mm的净化球。本产品能直接用于汽车等密闭空间空气污染源的净化,能源源不断释放对人体有益的负氧离子,吸附悬浮污染物,降解汽车中的刺激性气体,有效驱除空气污染源,具有较好的经济效益和应用前景。
Description
技术领域
本发明涉及封闭空间的空气净化领域,尤其是涉及消除车内空气污染的车载净化球。
背景技术
车内空气污染主要来自熔点低于室温而沸点在50~260℃之间的挥发性有机化合物(VOCs),包含苯、甲苯、甲醛、乙醛等对人体有害的致癌物。长途客车车内空气污染物中烷烃、芳香烃和烯烃分别占41.4%、27.6%和20.7%[2]。2004年"中国首次汽车内环境污染情况调查活动"结果显示,有93.82%的车辆存在不同程度的车内环境污染,其中,高达81.6%的新车车内甲醛、苯超标。鉴于车内的有害气体超标对人体造成的危害极大,对车内空气污染预防及治理成为当前重要的研究课题。
VOCs治理现有化学氧化法、物理吸附法、生物分解法、光解法、电化学法以及新兴复合型治理技术,以及空气清新剂、活性炭、纳米二氧化钛和车载净化器治理方法等,诸类治理技术方法各有一定的优势和缺陷。吸附法应用最为广泛,催化燃烧法和低温等离子法发展最快,复合型处理技术虽然效果最好且无二次污染,但成本高、操作繁琐;绝大部分空气清新剂超过40%的成分是萜类化合物,与空气中的臭氧反应生成甲醛和粒径小于0.1微米的超细微粒(PM0.1),不仅不能净化空气,还能生成新的污染物;活性炭是比较安全有效的空气净化消毒办法,但其杀菌的效果差、易过饱和而脱附产生二次污染;纳米二氧化钛对车内甲苯、二甲苯、甲醛和总有机挥发物的降解率分别达到93.8%、91.6%、64.8%和88.3%,但需紫外光照射且成本高;车载净化器使用方便,但净化醛、苯系物的效率不高。因此,寻找应用广泛、效率高、成本低、操作简便、无二次污染的车载空气污染治理技术与方法,对于车内环境优化和维护人们身体健康具有重要意义。
发明内容
本发明的目的在于提供一种无污染、可产生负氧离子、驱除车内空气污染物的净化球。
为达到上述目的,本发明的一种车载净化球,其原料由以下重量份的组份组成:
所述车载净化球通过以下方法制备:
按所述重量比配料,将所述白水泥、硅藻土、熟石灰、海泡石粉、白炭黑、膨润土、电气石粉、纳米银溶液和聚乙烯醇粉混合均匀后置于圆盘造粒机中,喷淋水并随圆盘旋转而滚动成圆球,经振动筛分得到粒径为4~10mm的净化球坯体,所述净化球坯体再次置于圆盘造粒机中,喷淋硼砂溶液并随圆盘旋转而滚动至外观光滑,再经振动筛分、检验得到粒径为4~10mm的净化球。
可选的,所述白水泥的粒度为100目、硅藻土的粒度为100目、熟石灰的粒度为300目、海泡石粉的粒度为320目、膨润土的粒度为200目、聚乙烯醇粉的粒度为100目。
可选的,所述车载净化球的原料由以下重量份的组份组成:
可选的,所述车载净化球的原料由以下组份按质量百分比组成:
可选的,所述车载净化球的原料由以下组份按质量百分比组成:白水泥23.0%、硅藻土32.7%、熟石灰14.0%、海泡石粉9.5%、白炭黑4.8%、膨润土4.8%、电气石粉3.3%、纳米银溶液0.20%、聚乙稀醇粉4.2%、硼砂3.5%。
可选的,所述聚乙稀醇粉的粘度为40.0~65.0CPS。
本发明的车载净化球具有以下特点:
1.白色球状颗粒、无味、无毒、无害;
2.挥发性有机化合物含量(VOC)、游离甲醛含量、苯、甲苯、乙苯和二甲苯的总量,以及可溶性铅(Pb)、镉(Cd)、铬(Cr)、汞(Hg)未检出;
3.内、外照射指数(Ira、Ir)≤1.0;
4.能源源不断释放对人体有益的负氧离子;净化球中电气石系一种永久电极性材料,其与水接触瞬间可产生微电池将水电解,从而生成H+与OH—,其中,H+被e–中和产生H2,OH-与H2O作用产生负氧离子子OH-(H2O)n,只要有H2O存在,即能源源不断释放对人体有益的负氧离子;
5.净化球的白炭黑、硅藻土等除了本身的微孔结构赋予强的吸附性外,还可通过-Si-O-Si-键上连接的活性基团的相互作用而构成网状结构,能强烈吸附空气中的尘粒、烟雾、病毒、细菌等生物悬浮污染物而沉降下来,起到净化空气作用;
6.强烈吸附车内甲醛、乙醛、丙烯醛、苯、甲苯、二甲苯、乙苯、苯乙烯、有机物(VOC)等刺激性气体,并催化负氧离子氧化、降解反应,有效驱除空气污染源;以甲醛为例,负氧离子可将空气中HCHO氧化为甲酸(HCOOH),后者进一步分解为二氧化碳(CO2)和水(H2O),有效除去HCHO的污染。同时,Ag+(银离子)能参与HCHO发生氧化还原反应,结果生成Ag、HCOOH、CO2和H2O;OH–(H2O)n负氧离子氧化Ag而生成Ag+;生成的Ag+继续与HCHO反应,催化OH–(H2O)n和HCHO氧化还原反应循环反复进行,从而连续清除车内HCHO的污染。
本产品能直接用于汽车密闭空间空气污染源的净化。
以下实施例对本发明做进一步具体的说明。
具体实施方式
实施例1
一种HQX-01型车载空气净化球,按重量百分比由以下组分组成:
其制备步骤是:
采用圆盘造粒机,1-9组分首先充分混合均匀,然后喷淋水溶液,此时随圆盘的旋转,水溶性聚乙稀醇与其它组分相互粘合,进而滚动成圆球,经振动筛分;继而喷淋硼砂水溶液,圆球内部的水溶性聚乙稀醇分子上的4个羟基与硼砂中B反应生成单二醇络合物,在强碱性环境(pH=13)的条件,单二醇络合物与碱作用即生成凝胶,进而在圆盘上粘合、硬化、滚动成圆球,再经振动筛分,收集4~10mm净化球,烘干,得到外观光滑的净化球。小于4mm的球粒加粉体再进入圆盘加粉体造粒;大于10mm的球粒经烘干、粉碎后再进入圆盘重复制球。
实施例2
一种HQX-02型车载空气净化球,按重量百分比由以下组分组成:
其制备步骤是:
参考实施例1,1-9组分自动计量→配合→混合均匀→第一次圆盘喷淋水造粒→振动筛分→第二次圆盘喷淋硼砂水溶液造粒→烘干→振动筛分(4~10mm)→检验→自动包装→入仓储存。
实施例3
一种HQX-02型车载空气净化球,按重量百分比由以下组分组成:
其制备步骤是:
参考实施例1,1-9组分自动计量→配合→混合均匀→第一次圆盘喷淋水造粒→振动筛分→第二次圆盘喷淋硼砂水溶液造粒→烘干→振动筛分(4~10mm)→检验→自动包装→入仓储存。
上述实施例制造的车载净化球的质量指标如下:
表1感官指标
项目 | 指标 |
色泽 | 黑色 |
外观 | 球状颗粒 |
表2有害物质限量指标
项目 | 指标 |
挥发性有机化合物含量(VOC),g/㎏ | ≤1 |
苯、甲苯、乙苯和二甲苯的总量(㎎/㎏) | ≤50 |
游离甲醛,㎎/kg | ≤5 |
可溶性铅,mg/kg | ≤30 |
可溶性镉,mg/kg | ≤10 |
可溶性铬,mg/kg | ≤10 |
可溶性汞,mg/kg | ≤10 |
表3放射性核素限量指标
项目 | 指标(A类) |
内照射指数(IRa) | ≤1.0 |
外照射指数(Ir) | ≤1.3 |
表4功能指标
项目 | 净化率指标,%(4h) |
甲醛 | ≥80 |
氨气 | ≥40 |
硫化氢 | ≥20 |
二氯苯 | ≥10 |
总有机物(TVOC) | ≥50 |
空气负离子诱生量,个/s·cm2 | ≥1000 |
上述实施例仅用来进一步说明本发明的一种车载净化球,但本发明并不局限于实施例,凡是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、等同变化与修饰,均落入本发明技术方案的保护范围内。
Claims (6)
1.一种车载净化球,其特征在于:所述车载净化球的原料由以下重量份的组份组成:
所述车载净化球通过以下方法制备:
按所述重量比配料,将所述白水泥、硅藻土、熟石灰、海泡石粉、白炭黑、膨润土、电气石粉、纳米银溶液和聚乙烯醇粉混合均匀后置于圆盘造粒机中,喷淋水并随圆盘旋转而滚动成圆球,经振动筛分得到粒径为4~10mm的净化球坯体,所述净化球坯体再次置于圆盘造粒机中,喷淋硼砂溶液并随圆盘旋转而滚动至外观光滑,再经振动筛分、检验得到粒径为4~10mm的净化球。
2.根据权利要求1所述的车载净化球,其特征在于:所述白水泥的粒度为100目、硅藻土的粒度为100目、熟石灰的粒度为300目、海泡石粉的粒度为320目、膨润土的粒度为200目、聚乙烯醇粉的粒度为100目。
3.根据权利要求1所述的车载净化球,其特征在于:所述车载净化球的原料由以下重量份的组份组成:
4.根据权利要求3所述的车载净化球,其特征在于:所述车载净化球的原料由以下组份按质量百分比组成:
5.根据权利要求4所述的车载净化球,其特征在于:所述车载净化球的原料由以下组份按质量百分比组成:白水泥23.0%、硅藻土32.7%、熟石灰14.0%、海泡石粉9.5%、白炭黑4.8%、膨润土4.8%、电气石粉3.3%、纳米银溶液0.20%、聚乙稀醇粉4.2%、硼砂3.5%。
6.根据权利要求1所述的车载净化球,其特征在于:所述聚乙稀醇粉的粘度为40.0~65.0CPS。
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