CN109624122A - 一种缓膨型遇水膨胀橡胶止水条及其密炼机 - Google Patents
一种缓膨型遇水膨胀橡胶止水条及其密炼机 Download PDFInfo
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Abstract
本发明公开了一种缓膨型遇水膨胀橡胶止水条及其密炼机,其中所述橡胶止水条由下列重量份数的原料制成:天然橡胶10、丁基橡胶32、橡胶油7、膨润土48、炭黑2、橡胶助剂1。用于炼制上述橡胶止水条的密炼机,包括密炼机室、底座、控制柜、橡胶切料系统、辅料混料器。本发明的缓膨型橡胶止水条制备简单,防水效果较好,且无脱落变形现象发生,抗老化性能好;本发明提供的橡胶密炼机自带辅料混料装置与切料装置,不仅能提高炼胶效率,还可以减少环境污染,提升炼胶质量。
Description
技术领域
本发明属于止水材料技术领域,具体涉及一种缓膨型遇水膨胀橡胶止水条及其密炼机。
背景技术
在地下混凝土工程或蓄水设备混凝土工程中,施工缝或后浇带混凝土渗漏是施工者常遇到的问题,在传统的施工工艺中,一般是通过设置钢板阻止水通过施工缝或后浇带来解决的。这种施工方法存在着诸多不便,如钢板的预放、先浇混凝土界面的控制等,同时使用钢板费用较高。而遇水膨胀橡胶止水条则可以很好的解决这些问题,其施工工艺是首先在先浇混凝土表面放置并固定这种遇水膨胀橡胶止水胶条,然后浇注上面的混凝土,当水通过施工缝渗透到膨胀橡胶止水条时,止水条在一定的时间内产生膨胀,阻断了水渗透通道,从而起到防水的作用。这种防水材料施工简便,其本上解决了使用钢板所带来的不便及费用较高的问题。
但随着这种材料的使用,又产生了新的问题。如前文所述,其施工工艺是在放置遇水膨胀橡胶止水条后再浇注上面的混凝土,如果施工间隙较长并且又遇到雨天,在浇筑混凝土之前,已安装的橡胶止水条可能会遇水产生体积膨胀,膨胀后的止水条体积会增加1.5-5.0倍,同时形状会变得不规则,这种状态的止水条在浇注混凝土后己经失去防水作用。
止水橡胶缓膨技术可以较好的解决上述问题,但是现有的缓膨型遇水膨胀橡胶止水条效果往往不是特别理想,在浇筑混凝土时常常发生混凝土还未完全干透,止水条就开始大体积膨胀了。造成止水条位移,或者止水条把混凝土涨开。其原因主要是因为新浇筑的混凝土本身含有水分,而止水条是遇水膨胀,在缓膨效果较差的情况下,在实际使用中往往影响施工质量,达不到防水效果。
橡胶的混炼是橡胶加工的第一道工序,混炼一般在密炼机中进行,混炼过程中需要向密炼机中投加胶料及其他各种小组分的辅料。一方面现有的密炼机投料时大多将各种原料混合均匀后再投入密炼机,由于小组分辅料多为粉料,在密炼机外进行混合与搅拌容易引起粉末扬尘,不仅导致混炼胶组分不准确,影响混炼胶的性能,还会严重污染工作环境,对操作人员的身体造成伤害。另一方面,现有的密炼机在投料时直接将大块的橡胶投入密炼机或者在其他切料机上切完再运入密炼机,这都会在不同程度上降低密炼效率。
发明内容
本发明的目的在于:针对普通型遇水膨胀橡胶止水条存在的问题,提供一种缓膨型遇水膨胀橡胶止水条及其密炼机。
为了实现上述目的,本发明采用的技术方案为:本发明公开了一种缓膨型遇水膨胀橡胶止水条,由下列重量份数的原料制成:
本发明所公布的缓膨型遇水膨胀橡胶止水条,其中,橡胶助剂为促进剂M、硫磺、氧化锌。
本发明所公布的缓膨型遇水膨胀橡胶止水条,其制备方法的具体步骤如下:
(1)按照密炼机的容量和适当的填充系数(0.6~0.7),计算一次炼胶量和实际配方;
(2)根据实际配方,准确称量配方中各种原材料的用量,分别放置在相应的物料架上;
(3)打开密炼机电源开关及加热开关,给密炼机室预热,检查测温系统、计时装置、功率系统指示和记录是否正常;
(4)密炼机预热好后,稳定一段时间,准备炼胶;
(5)将准备好的天然橡胶和丁基橡胶加入切料系统内,进行切料;
(6)步骤(5)所述切料完成,将已切成小块的天然橡胶和丁基橡胶从加料口投入密炼机,关闭加料口,温度控制在100-110℃,炼胶5min;
(7)将橡胶油、膨润土、炭黑和橡胶助剂投入步骤(6)所述密炼机内,炼胶12分钟;
(8)将步骤(7)所述炼好的胶料从密炼机内排出,同时打开除尘设备进行除尘;
(9)将步骤(8)所述的胶料通过挤出机挤出成型,挤出温度为70℃,速度为20米/分钟;
(10)将步骤(9)所述的成型止水条放置在平整、洁净金属表面上冷却至室温,贴上标签注明胶料配方编号和混炼日期,停放待用。
本发明提出了一种用于炼制上述缓膨型遇水膨胀橡胶止水条的密炼机,包括密炼机室、底座、控制柜、橡胶切料系统、辅料混料器;所述底座顶部连接有支撑柱、控制柜、支架;支撑柱顶部连接密炼机室;密炼机室内部安装有第一挤压杆和第二挤压杆,底部设置有出料口,左上角顶部设置有橡胶进料口,右上角连接辅料混料器;辅料混料器内部设有出料门和螺旋搅拌器,螺旋搅拌器与电机相连,且辅料混料器设置在支架上;密炼机室左侧设置有控制柜,控制柜外壁安装有控制面板,内部设置有电机、主动轮、从动轮,主动轮一端连接电机,另一端连接第一挤压杆,从动轮与第二挤压杆连接;控制柜顶部安装有橡胶切料仓;橡胶切料仓左侧和顶部均安装有气压缸和控制活塞,且顶部的控制活塞下部安装有切刀,橡胶切料仓的料门设置在密炼机室橡胶进料口上方。
进一步的,所述第一挤压杆与第二挤压杆的叶片为螺旋式。
进一步的,所述主动轮与从动轮采用齿合连接,传动比为1:1。
进一步的,所述橡胶切料仓顶部设置有供切料刀运行的刀具运动导向口,切料仓顶部还可以作为卸料板,在刀具运行过程中,卸除刀具上粘附的料。
进一步的,所述辅料混料器中的出料门为从中间开闭的电控式开关门。
由于采用了上述技术方案,本发明的有益效果是:
本发明制备步骤简单,所得的缓膨型遇水膨胀橡胶止水条改进了目前常用橡胶止水条的膨胀性能,能有效延缓橡胶止水条的膨胀,防水效果较好,且本发明的橡胶止水条无脱落变形现象发生,抗老化性能好。本发明提供的橡胶密炼机自带辅料混料装置与切料装置,不仅能提高炼胶效率,还可以减少环境污染,提升炼胶质量。
附图说明
图1为本发明的密炼机整体结构示意图;
图2为密炼机辅料混料器的结构示意图。
附图标记:1-密炼机室,2-支撑柱,3-底座,4-控制柜,6-辅料混料器,7-支架,11-出料口,12-第一挤压杆,13-第二挤压杆,14-进料口,41-电机,42-主动轮,43-从动轮,44-控制面板,51-气压缸,52-控制活塞,53-切刀,54-气压缸,55-控制活塞,56-橡胶切料仓,57-料门,61-出料门,62-螺旋搅拌器,63-电机。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将对本发明实施例中的技术方案进行清楚、完整地描述。实施例中未注明具体条件者,按照常规条件或制造商建议的条件进行。所用试剂或仪器未注明生产厂商者,均为可以通过市售购买获得的常规产品。
下面对本发明的缓膨型遇水膨胀橡胶止水条及其密炼机进行具体说明。
具体实施步骤如下:
(1)按照密炼机容量和适当的填充系数(0.6~0.7),计算一次炼胶量,按以下比例(重量份数)称取原料:
(2)打开密炼机电源开关及加热开关,给密炼机室预热,检查测温系统、计时装置、功率系统指示和记录是否正常;
(3)密炼机预热好后,稳定一段时间,准备炼胶;
(4)将准备好的天然橡胶和丁基橡胶加入切料系统内,进行切料;
(5)步骤(4)所述切料完成,将已切成小块的天然橡胶和丁基橡胶从进料口投入密炼机,关闭进料口,温度控制在100-110℃,炼胶5min;
(6)将橡胶油、膨润土、炭黑和橡胶助剂投入步骤(5)所述密炼机内,炼胶12分钟;
(7)将步骤(6)所述炼好的胶料从密炼机内排出到固定的装置;
(8)将步骤(7)所述的胶料通过挤出机挤出成型,挤出温度为70℃,速度为20米/分钟;
(9)将步骤(8)所述的成型止水条放置在平整、洁净金属表面上冷却至室温,贴上标签注明胶料配方编号和混炼日期,停放待用。
如图1所示,本实施例所述的一种用于炼制橡胶止水条的密炼机,包括密炼机室1、底座3、控制柜4、橡胶切料系统、辅料混料器6;所述底座3顶部连接有支撑柱2、控制柜4、支架7;支撑柱2顶部连接密炼机室1;密炼机室1内部安装有第一挤压杆12和第二挤压杆13,底部设置有出料口11,左上角顶部设置有橡胶进料口14,右上角连接辅料混料器6;辅料混料器6内部设有出料门61和螺旋搅拌器62,螺旋搅拌器62与电机63相连,且辅料混料器6设置在支架7上;密炼机室1左侧设置有控制柜4,控制柜4外壁安装有控制面板44,内部设置有电机41、主动轮42、从动轮43,主动轮42一端连接电机41,另一端连接第一挤压杆12,从动轮43与第二挤压杆13连接;控制柜4顶部安装有橡胶切料仓56;橡胶切料仓56左侧安装有气压缸51和控制活塞52,顶部安装有气压缸54与控制活塞55,控制活塞55下部安装有切刀53,橡胶切料仓56的料门57设置在橡胶进料口14上方。所述第一挤压杆12与第二挤压杆13的叶片为螺旋式。所述主动轮42与从动轮43采用齿合连接,传动比为1:1。所述橡胶切料仓56顶部设置有供切料刀53运行的刀具运动导向口,切料仓顶部还可以作为卸料板,在刀具运行过程中,卸除刀具上粘附的料。所述辅料混料器6中的出料门61为从中间进行开闭的电控式开关门。
使用时,将橡胶从料门57运入切料仓56,气压缸54带动控制活塞55上下移动,从而带动切料刀53进行切料;与此同时,接通密炼机室电源和加热电源,对密炼机进行预热,检查测温系统、计时装置、功率系统指示和记录是否正常。切料与密炼机室预热均完成后,收回切料刀53,控制活塞52在气压缸51的带动下,进行左右移动,将橡胶从料门57推入密炼机室1的进料口14。关闭进料口14,接通电机41带动主动轮42和从动轮43运转,从而带动第一挤压杆12和第二挤压杆13进行炼胶;与此同时将辅料加入辅料混料器6中,接通电机63,带动螺旋搅拌器61进行搅拌,待上一步的橡胶密炼完成,打开出料门61,将辅料运入密炼机室1再次进行密炼。密炼完成后,将练好的橡胶从密炼机室的出料口11排除到固定的装置,进行后续挤压成型。
由本实施例得出的缓膨型遇水膨胀橡胶止水条的性能良好,其主要物理性能指标见表1
表1缓膨型遇水膨胀橡胶止水条主要物理性能指标
以上所描述的实施例是本发明一部分实施例,而不是全部的实施例。本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围,而是仅仅表示本发明的选定实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
Claims (8)
1.一种缓膨型遇水膨胀橡胶止水条,其特征在于,由下列重量份数的原料制成:
2.如权利要求1所述的缓膨型遇水膨胀橡胶止水条,其特征在于,所述橡胶助剂为促进剂M、硫磺、氧化锌。
3.一种用于制备如权利要求1-2所述的缓膨型遇水膨胀橡胶止水条的方法,其特征在于,该方法包括以下步骤:
(1)按照密炼机的容量和适当的填充系数(0.6~0.7),计算一次炼胶总量;
(2)根据权利要求1中的原料配比以及步骤(1)中计算的炼胶总量,准确计量并称取各种原材料的用量,分别放置在相应的物料架上;
(3)打开密炼机电源开关及加热开关,给密炼机室预热,检查测温系统、计时装置、功率系统指示和记录是否正常;
(4)密炼机预热好后,稳定一段时间,准备炼胶;
(5)将准备好的天然橡胶和丁基橡胶加入切料系统内,进行切料;
(6)步骤(5)所述切料完成,将已切成小块的天然橡胶和丁基橡胶从进料口投入密炼机,关闭进料口,温度控制在100-110℃,炼胶5min;
(7)将橡胶油、膨润土、炭黑和橡胶助剂投入步骤(6)所述密炼机内,炼胶12分钟;
(8)将步骤(7)所述炼好的胶料从密炼机内排出;
(9)将步骤(8)所述的胶料通过挤出机挤出成型,挤出温度为70℃,速度为20米/分钟;
(10)将步骤(9)所述的成型止水条放置在平整、洁净金属表面上冷却至室温,贴上标签注明胶料配方编号和混炼日期,停放待用。
4.一种用于炼制如权利要求1所述的缓膨型遇水膨胀橡胶止水条的密炼机,其特征在于,该密炼机包括密炼机室(1)、底座(3)、控制柜(4)、橡胶切料系统、辅料混料器(6);所述底座(3)顶部连接有支撑柱(2)、控制柜(4)、支架(7);支撑柱(2)顶部连接密炼机室(1);密炼机室(1)内部安装有第一挤压杆(12)和第二挤压杆(13),底部设置有出料口(11),左上角顶部设置有橡胶进料口(14),右上角连接辅料混料器(6);辅料混料器(6)内部设有出料门(61)和螺旋搅拌器(62),螺旋搅拌器(62)与电机(63)相连,且辅料混料器(6)设置在支架(7)上;密炼机室(1)左侧设置有控制柜(4),控制柜(4)外壁安装有控制面板(44),内部设置有电机(41)、主动轮(42)、从动轮(43),主动轮(42)一端连接电机(41),另一端连接第一挤压杆(12),从动轮(43)与第二挤压杆(13)连接;控制柜(4)顶部安装有橡胶切料仓(56);橡胶切料仓(56)左侧安装有气压缸(51)和控制活塞(52),顶部安装有气压缸(54)与控制活塞(55),控制活塞(55)下部安装有切刀(53),橡胶切料仓(56)的料门(57)设置在橡胶进料口(14)上方。
5.如权利要求4所述的橡胶止水条密炼机,其特征在于,所述第一挤压杆(12)与第二挤压杆(13)的叶片为螺旋式。
6.如权利要求4所述的橡胶止水条密炼机,其特征在于,所述主动轮(42)与从动轮(43)采用齿合连接,传动比为1:1。
7.如权利要求4所述的橡胶止水条密炼机,其特征在于,所述橡胶切料仓(56)顶部设置有供切料刀(53)运行的刀具运动导向口。
8.如权利要求4所述的橡胶止水条密炼机,其特征在于,所述辅料混料器(6)中的出料门(61)为从中间进行开闭的电控式开关门。
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