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钢筋混凝土排水管生技术现状及(qing)发展势</h1></div> <div id="gda7ro7" class="news_author">来源Q?a href='http://bjjhd.cn/news/70.html'>http://bjjhd.cn/news/70.html</a> 发布日期Q?019-06-19 </div> <div id="b7lw27h" class="news_content"> <span style="font-size:16px;font-family:SimSun;">   <a target="_blank" href="http://bjjhd.cn/news/70.html"> <a href="http://bjjhd.cn/gjhntpsg/" target="_blank">钢筋混凝土排水管</a>生技术现状及(qing)发展势</a></span><br /> <span style="font-size:16px;font-family:SimSun;">    一、钢{?a href="http://bjjhd.cn/supply/35.html" target="_blank">混凝土排水管</a>生技术现状?/span><br /> <span style="font-size:16px;font-family:SimSun;">    q几q?随着城镇规模的不断扩?污水ȝ工程的大力兴?国家投入?jin)大量资金用于?jng)政徏讑֒?jng)政攚w?<a href="http://bjjhd.cn/psg/" target="_blank">排水?/a>行业的Ş势应该说非常?钢筋砼排水管的生产技术也随着材的量、质量、规格品U的发展而有?jin)限大的q步.在上世纪?0~60q代,我们的制工Z要以手工振捣工艺Z;60~70q代,d(j)工艺逐渐占主异地?当时制定的行业标准JC130-67是以离?j)工Zؓ(f)d订的;C(jin)70~80q代,(zhn)辊工艺开始ؓ(f)国h所接受,当时d(j)、?zhn)辊成Z个主要的制管工艺;?0q代后期开?随着攚w开?我国与国外先q国家制技术的交流日益频繁,q步从国外引q了(jin)十几条先q的径向挤压制管、芯模振动制工艺生产线,使排水管的生产技术有?jin)很大的飞?目前,可以说国外所有的制管工艺,我国都有?q在其他水惔制品行业是不多见?下面单介l一下各U制工艺的现状.</span><br /> <div style="text-align:center;"> <span style="font-size:16px;font-family:SimSun;"></span><img src="/uploads/image/20190619/20190619180340_1642.jpg" alt="排水?钢筋混凝土排水管" width="324" height="207" title="排水?钢筋混凝土排水管" align="" /> </div> <span style="font-size:16px;font-family:SimSun;">    (一)d(j)制管工艺</span><br /> <span style="font-size:16px;font-family:SimSun;">    d(j)制管的原理是在成型过E中,模q同砼在d(j)Z以一定的旋{速度转动,砼在d(j)力作用下分布于管模内表面,在高速离?j)?排出多余的水?从而Ş成密实的砼结?d(j)制管技术是澛_利亚Z漠在20世纪初发明的,所以国外将d(j)称作ؓ(f)休谟?׃q种技术发明早、设备简单、操作容?所以很早就得到?jin)普及(qing)应?国外象澳大利亚、日本、印度等,都将它作ZU主要的制管工艺,特别是日?d(j)工艺使用的相当普?对各U离?j)工艺制品都制定有相应的标?我国也是较早采用d(j)工艺的国?在我国的制杆、制桩、制行业都普遍采用q种工艺.排水管行业来说,几乎60%以上的企业有d(j)制管工艺生U?q几q?随着柔性接口管的大量?在国产装备中,d(j)工艺更加受到表睐.因ؓ(f)q种工艺制作的管子具有如下的优点:①外观质量好;②管体及(qing)接口寸正确;③管w强度高;④抗渗性能?但用q种工艺也存在一些问?如在d(j)成型完毕?体内部?x)存在较多的?既污染环?又造成原材料的费._附在内壁上的Q如不及(qing)时清?q(sh)(x)影响子的强度和内壁光滑?常规体清理出的浆有二U处理方?一是在浆中掺入粗l集?制成低水惔制品,但因次较低,销路不?二是Q液输入沉淀(wn)?l沉淀(wn)?上层清水排放?下面的沉淀(wn)物定期掏?但因水惔是水性胶凝材?掏挖很费时、费?国外有在d(j)g掺入各种i凝?使得浆中的水惔与之l合,_附在管壁内?而清水在d(j)l束后从体内排放掉,效果不错,但国外品h(hun)D?目前,国内也开始重视这一问题,q且有单位开始在研制适合中国国情的Q凝剂.另外,d(j)制度的自动控制也是必解决的,q关pd产品的质?q个问题在管桩离?j)机上已l解?在排水管d(j)Z也应该可以解?</span><br /> <br /> <span style="font-size:16px;font-family:SimSun;">    (?(zhn)辊制管工艺</span><br /> <span style="font-size:16px;font-family:SimSun;">    (zhn)辊法制是(zhn)置式辊轴辊压制的U?其原理ؓ(f):(zhn)置式的制管Z轴在甉|驱动?以一定的速度旋{,同时套入主u的管模靠挡圈与主轴间的摩擦力被带动旋?投入模中的砼料在离?j)力作用下均匀地分布于模内壁.当投入砼料的厚度过模的挡圈时,卛_到辊压力的作?砼在辊压力作用下逐渐密实.同时,׃D面ƈ不^?模旋{时会(x)产生振动,q种振动也有助于砼的密实.因此(zhn)辊成型是在d(j)力、辊压力、振动力的共同作用下使砼密实?q种制管技术是澛_利亚|克拉公怺上世U?0q代首先采用?该工Z因ؓ(f)其设备构造简?操作Ҏ(gu),且生产用的是干性砼,元Q?不污染环?生的管子外压强度高,所以从80q代引进开?很快得C(jin)普及(qing),目前我国大约有一半的制管企业有?zhn)辊工艺生产?但经q二十多q的生实践,我们发现,(zhn)辊制管也存在如下一些工Z的难?</span><br /> <br /> <span style="font-size:16px;font-family:SimSun;">    ①喂料厚度难掌握.制管时喂料必超厚即砼厚过模挡圈才能得到辊压,一般要求管子成品超?mm~3mm,q是很难掌握?又由于管模在使用中挡圈的损,造成壁厚度误差较大,q在历次的排水管抽检?(zhn)辊壁厚误差太大一直是比较H出的问?②对钢筋骨架要求严格.在管子成型时,砼受到的机械辊压力很?寚w架也形成相当大的扭力,如用手工绑扎骨?容易造成骨架变Ş、散?从而媄(jing)响管体结构强?因此(zhn)辊制管必须采用滚焊骨架.③管子承口难以制作好,n主要靠辊压密?当设有承口内模时,此处卛_Ş不成辊压,如直接辊压成?其工作面寸、^整度难以满胶圈接口的要求.因此,(zhn)辊工艺制作柔性接口管有一定难?</span><br /> <br /> <span style="font-size:16px;font-family:SimSun;">    因ؓ(f)以上q些原因,目前C的钢{砼排水生产线,已较?yu)采用(zhn)辊工?</span><br /> <br /> <span style="font-size:16px;font-family:SimSun;">    (?立工径向挤压制管工艺</span><br /> <span style="font-size:16px;font-family:SimSun;">    立式径向挤压制管技术是以美国麦克拉肯公ؓ(f)代表的一U制技?它是靠旋转ƈ提升q动的辊压头,砼挤压密实.我国在上世纪80q代后期,上v水惔制管厂首先从国引进?jin)该制管装备和技?该制工艺的特点?①生产效率高.与离?j)、?zhn)辊制工艺相?单机生效率是较高的,如直径?00mm,?.5m的钢{砼?每根成型旉仅需2~3分钟;②占用管模少.׃生中用干性砼,故管子成型后可立卌?生占用模数量以能满周{为准,一般只?~5?③因为采用的是干性砼,故无浆产生,不污染环?④生产过E中,噪音很低,噪音值在标准允许范围?⑤管体与接口寸正确,适合做?200mm以下的柔性接口管.</span><br /> <br /> <span style="font-size:16px;font-family:SimSun;">    但立式径向挤压制对钢筋骨架要求较高,骨架必须采用滚焊成型.否则在成型时骨架?x)因受局部过大的扭力而破?且成套装备引qh(hun)格太?只有数企业能承?已有厂家研制国讑֤.</span><br /> <br /> <span style="font-size:16px;font-family:SimSun;">    (?立式振动制管工艺</span><br /> <span style="font-size:16px;font-family:SimSun;">    立式振动制管工艺可分?附着式振动器振动成型、振动台振动成型、插入式振动成型和芯模振动成?前三U立式振动装备国内专业制造厂安能生?h较便?使用也较普遍,特别是插入式振动工艺,目前国内大口径排水管很多企业都采用这U工?但生产效率较?芯模振动工艺是以业w佩d哈博公司Z表的一U制工?其模具分为内模与外模,以内?振动芯模)作ؓ(f)振源使干性砼在均匀的大振动力下振动密实,使砼获得很高的强?目前我国引进的排水管生U中,较多的就是芯模振动工?它的较大优点是管子生产效率高,可以生异Şg,特别适合做?350mm以上的大口径?但生产时噪音较大,且引qh(hun)格太昂贵.目前国内已经有厂家研制成功芯模振动装?讑֤投资有望降低.</span><br /> <br /> <span style="font-size:16px;font-family:SimSun;">    二、钢{؜凝土排水的发展势</span><br /> <span style="font-size:16px;font-family:SimSun;">    (一)向大口径方向发展</span><br /> <span style="font-size:16px;font-family:SimSun;">    随着?jng)政的发?需要大量的大口径排水管,原GB11836-89标准制订?排水的直径范围为?00mm~Φ2400mm,而制订GB11836-99标准?Ҏ(gu)调研情况,直径范围已扩展到Φ200mm~Φ3000mm,甚至有的工程已用?000mm以上的管?Ҏ(gu)水管行业来说,目前口径管?jng)场已受到各U塑料管材的强烈冲击.实,塑料具有重量轻、内壁光滑、联接质量好、施工方便等优点,而且生U基本上都是自动化的,生效率?故已l被q泛地选用.因此Φ600mm以下钢筋砼排水管再上新生产线意义已不很大.而大口径排水?目前钢筋砼管q是占比较大的优?因ؓ(f)大口径钢{砼排水从制作成本来看与其他管材相?q是比较便宜,且刚度好,特别是在管施工?更是优选的材.而顶施?因不需要开挖面?q能I越公\、铁路、地面徏{物、地下构{物{?且施工进度快,已被来广泛地采用.</span><br /> <br /> <span style="font-size:16px;font-family:SimSun;">    (?向柔性接口方向发?/span><br /> <span style="font-size:16px;font-family:SimSun;">    在GB11836-89标准制订的时?我国排水行业的技术水qx(chng)遍还较低,当时主要接口型式是以刚性接口ؓ(f)?q类子Ҏ(gu)口精度要求不?制作Ҏ(gu),施工排水时,主要采用套环或打腰箍或用砂浆密封.随着Z环保意识的提高和污水处理工程的需?Ҏ(gu)水管提出?jin)更高的要?柔性接口管已越来越受到Ƣ迎.q种接口具有如下优?①柔性接口系采用胶圈密封,接头处不易渗?故密性能?排污?不会(x)污染环境;②对地基的适应性强,无需做砼或钢{砼基础,只要用管枕定位即?因而可大大节约线整体造h(hun).且柔性接口允许有微小的{?不会(x)因地微的不均匀沉降而ɽ线开?③适合快速施?柔性接口因采用胶圈密封,且无需做砼或钢{砼基础,故施工方ѝ迅?柔性接口因h以上优点,已成为我国排水管的发展方?有的省市(jng)已明规定优先选用柔性接口管.目前,我国生的柔性接口型式有:承插式、企口式、钢承口式和双插口式,其中钢承口式在顶施工中被广泛采?</span><br /> <br /> <span style="font-size:16px;font-family:SimSun;">    (?向环保型方向发展</span><br /> <span style="font-size:16px;font-family:SimSun;">    21世纪,环保是hcd同的话题.提到环保,Ҏ(gu)们这个行业来?要从二个斚w考虑:一是品的原材?二是产品的用性能.</span><br /> <br /> <span style="font-size:16px;font-family:SimSun;">    从品原材料考虑,要尽可能采用l色?所谓采用绿色砼,是要少用或不用水惔,降低能耗和环境污染.因ؓ(f)水惔既是耗能大户,又是排污大户,据统计测?生1吨水?排?吨CO2,同时q要排放_尘和其他有x(chng)?更多地掺加以工业废料Z的掺合料,辑ֈ节约资源、能源、保护环?可持l发展的目的.</span><br /> <br /> <span style="font-size:16px;font-family:SimSun;">    从品用性能考虑,q年?׃生活污水中蛋白质的增加、合成洗涤剂的普遍用、工业废水的复杂?以及(qing)有些地区土壤介质本n的R蚀,普通砼排水道的腐蚀情况已是一个严重的问题.开发生产耐腐蚀钢筋砼排水管已被提上议事日程.苏州砼水泥制品研I为此做了(jin)大量研究工作,目前已成功地开发了(jin)FKJ耐腐蚀钢筋砼排水管.它是利用_煤灰、矿渣、外加剂作胶凝材料取代普通砼中的水惔,其水化物主要是沸石cL化硅铝酸?使FKJ砼在pHgؓ(f)2~13的环境中h比普通水泥砼好得多的耐腐蚀能力.很好地解决了(jin)生活污水、工业废水及(qing)土壤介质对砼的R蚀作用,大大提高?sh)(jin)管道的使用寿?值得推广.</span><br /> </div> <div id="l8exz2d" class="pagess"> <ul> <div>上一?<a href="71.html">遵义水惔能用在什么地方呢?</a></div> <div>下一?<a href="69.html">贵州水惔道在铺设中要注意哪?/a></div> </ul> </div> <div id="lj2qhkk" class="info_key"> <span>此文关键字:(x)</span> <a href='/key.aspx?k=%e6%8e%92%e6%b0%b4%e7%ae%a1'>排水?/a>,<a href='/key.aspx?k=%e9%92%a2%e7%ad%8b%e6%b7%b7%e5%87%9d%e5%9c%9f%e6%8e%92%e6%b0%b4%e7%ae%a1'>钢筋混凝土排水管</a>, </div> </div> <div id="xruhiu2" class="clear"></div> <div id="d8hwqcg" class="cateslist xgxinwen"> <dl> <dt>相关新闻</dt> <dd> <div id="ap7jbvv" class="txt xiangguan-x"><a href="/news/266.html" title="在安装钢{؜凝土排水时Q需要注意以下几?>在安装钢{؜凝土排水时Q需要注意以下几?/a></div> </dd> <dd> <div id="gf5wuvj" class="txt 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