高炉炼铁 - 小众知识

高炉炼铁

2013年01月27日 14:18:05 苏内容
  标签: 炼铁
阅读:7328
高炉炼铁化学方程式
以Fe2O3为例:
C+O2=△=CO2 
CO2+C=高温=2CO 
Fe2O3+3CO=高温=2Fe+3CO2
CaCO3=高温=CaO+CO2↑
CaO+SiO2=高温=CaSiO3

工艺设备

高炉

横断面为圆形的炼铁竖炉。用钢板作炉壳,壳内砌耐火砖内衬。高炉本体自上而下分为炉喉、炉身、炉腰、炉腹 、炉缸5部分。由于高炉炼铁技 术经济指标良好,工艺 简单 ,生产量大,劳动生产效率高,能耗低等优点,故这种方法生产的铁占世界铁总产量的绝大部分。高炉生产时从炉顶装入铁矿石、焦炭、造渣用熔剂(石灰石),从位于炉子下部沿炉周的风口吹入经预热的空气。在高温下焦炭(有的高炉也喷吹煤粉、重油、天然气等辅助燃料)中的碳同鼓入空气中的氧燃烧生成的一氧化碳,在炉内上升过程中除去铁矿石中的氧、硫、磷,还原得到铁。炼出的铁水从铁口放出。铁矿石中未还原的杂质(主要为脉石SiO2)和石灰石等熔剂结合生成炉渣(主要为CaSiO3等),从渣口排出。产生的煤气从炉顶排出,经除尘后,作为热风炉、加热炉、焦炉、锅炉等的燃料。高炉冶炼的主要产品是生铁,还有副产高炉渣和高炉煤气。
高炉热风炉

热风炉是为高炉加热鼓风的设备,是现代高炉不可缺少的重要组成部分。提高风温可以通过提高煤气热值、优化热风炉及送风管道结构、预热煤气和助燃空气、改善热风炉操作等技术措施来实现。理论研究和生产实践表明,采用优化的热风炉结构、提高热风炉热效率、延长热风炉寿命是提高风温的有效途径。
铁水罐车

铁水罐车用于运送铁水,实现铁水在脱硫跨与加料跨之间的转移或放置在混铁炉下,用于高炉或混铁炉等出铁。
相关知识
炼铁的原理

(怎样从铁矿石中炼出铁) 用还原剂将铁矿石中的铁氧化物还原成金属铁。铁氧化物(Fe2O3、Fe3O4、FeO)+还原剂(C、CO、H2) 铁(Fe)
反应的化学方程式分别为Fe2O3+3CO=2Fe+3CO2,Fe3O4+4CO=3Fe+4CO2(反应条件——高温)等
炼铁的方法

(1)直接还原法(非高炉炼铁法)
(2)高炉炼铁法(主要方法)
原料作用编辑
(1)铁矿石:(一般为赤铁矿、磁铁矿)提供铁元素。
冶炼一吨铁大约需要1.5—2吨矿石。
(2)焦炭:提供热量;提供还原剂;作料柱的骨架。
冶炼一吨铁大约需要500Kg焦炭。
反应方程式 C(焦炭)+O2=CO2
C焦炭+CO2=2CO
(3)熔剂:(石灰石、白云石、萤石)
使炉渣熔化为液体; 去除有害元素硫(S)、除去杂质
(4)空气:为焦碳燃烧提供氧、提供热量

操作规程
1 高炉内衬耐火材料、填料、泥浆等,应符合设计要求,且不得低于国家标准的有关规定。
2风口平台应有一定的坡度,并考虑排水要求,宽度应满足生产和检修的需要,上面应铺设耐火材料。
3 炉基周围应保持清洁干燥,不应积水和堆积废料。炉基水槽应保持畅通。
4 风口、渣口及水套,应牢固、严密,不应泄漏煤气;进出水管,应有固定支撑;风口二套,渣口二、三套,也应有各自的固定支撑。
5 高炉应安装环绕炉身的检修平台,平台与炉壳之间应留有间隙,检修平台之间宜设两个走梯。走梯不应设在渣口、铁口上方。
6 为防止停电时断水,高炉应有事故供水设施。
7 冷却件安装之前,应用直径为水管内径0.75~0.8倍的球进行通球试验,然后按设计要求进行水压试验,同时以0.75kg的木锤敲击。经10min的水压试验无渗漏现象,压力降不大于3%,方可使用。
8 炉体冷却系统,应按长寿、安全的要求设计,保证各部位冷却强度足够,分部位按不同水压供水,冷却器管道或空腔的流速及流量适宜。并应满足下列要求:
——冷却水压力比热风压力至少大0.05MPa;
——总管测压点的水压,比该点到最上一层冷却器的水压应至少大0.1MPa;
——高炉风口、渣口水压油设计确定;
——供水分配管应保留足够的备用水头,供高炉后期生产及冷却器由双联(多联)改为单联时使用;
——应制定因冷却水压降低,高炉减风或休风后的具体操作规程。
9 热电偶应对整个炉底进行自动、连续测温,其结果应正确显示于中控室(值班室)。采用强制通风冷却炉底时,炉基温度不宜高于250℃;应有备用鼓风机,鼓风机运转情况应显示于高炉中控室。采用水冷却炉底时,炉基温度不宜高于200℃。
10 采用汽化冷却时,汽包应安装在冷却器以上足够高的位置,以利循环。汽包的容量,应能在最大热负荷下1h内保证正常生产,而不必另外供水。
11 汽包的设计、制作及使用,应遵守下列规定:
——每个汽包应有至少两个安全阀和两个放散管,放散管出口应指向安全区;
——汽包的液位、压力等参数应准确显示在值班室,额定蒸发量大于4t/h时,应装水位自动调节器;蒸发量大于2t/h时,应装高、低水位警报器,其信号应引至值班室;
——汽化冷却水管的连接不应直角拐弯,焊缝应严密,不应逆向使用水管(进、出水管不能反向使用);
——汽化冷却应使用软水,水质应符合GB1576的规定。


 

炼铁时用的铁矿石,主要有赤铁矿石(主要成分是氧化铁)和磁铁矿石(主要成分是四氧化三铁),在铁矿石中还含有无用的脉石,主要成分是二氧化硅(SiO2)。炼铁时,被还原出的铁在高温下变成液体,而二氧化硅熔点很高的颗粒杂质混在炼出的铁水中。为了除去这种杂质,选用石灰石作熔剂,石灰石在高温下分解成氧化钙和二氧化碳。氧化钙在高温下与二氧化硅反应生成熔点比铁水温度还低的硅酸钙,而液态硅酸钙密度比铁水小且跟铁水不相混溶,便浮在铁水上。打开高炉上的出渣口,液态硅酸钙先流出去,凝固成高炉渣。过去这种高炉渣当作炼铁厂的废物,丢弃在农田。既毁了田,又污染环境。现在将高炉渣粉碎配制成水泥,过去的废物变成了今日的建筑材料。

CaCO3 CaO+CO2↑

CaO+SiO2 CaSiO3

 

   在高炉炼铁中脱除硫的过程,是钢铁生产最重要的脱硫环节。硫能溶于液态生铁形成无限溶液,硫在固态铁中虽然溶解度很小,但它能以硫化物如FeS等形态富集在晶粒间界上,形成Fe与FeS的低熔点共晶体。在加热到一定温度时,铁中便会出现液相。从而导致铁和钢的热脆,在轧钢和锻造时,钢材易出现裂纹。硫在钢中还能与氧形成硫氧化物,使热脆在更低的含硫量和温度下发生。铁和钢中还能形成各种硫化物夹杂,它们与其他非金属夹杂物一起对钢材的力学性能产生有害影响。铸造生铁含硫高时,铁水黏度增大,降低铁水填充性,使铸件中产生气泡。硫在钢铁中是一个最有害的元素,为了减少其危害,必须尽量降低硫在钢铁中的含量,从理论上说,脱硫应在高炉炼铁时完成。中国国家标准规定生铁中允许含硫量最高不得超过0.07%,企业则常以其生铁含硫0.03%作为质量考核指标。因此高炉脱硫是生产合格生铁的首要问题。

    高炉中硫的来源进入高炉中的硫来自其原燃料,如矿石、烧结矿、球团矿、焦炭、熔剂和喷吹燃料等。通常以焦炭带入硫量最多,约占入炉总硫量的60%~80%。焦炭中的硫主要以有机硫CnSm和灰分中的硫化物和硫酸盐形式存在。在天然矿石和熔剂中,硫以黄铁矿(FeS2)和硫酸盐(CaSO4,BaSO4等)形态存在。烧结矿和球团矿中的硫以FeS和CaS形态存在。冶炼每吨生铁时炉料所带入的总硫量(见硫负荷)一般为4~6kg。

   高炉中硫的行为炉料中的硫随着炉料下降和温度升高,一部分逐渐挥发进入煤气。焦炭中的有机硫在炉身下部到炉腹有30%~50%以CS及COS等化合物形态先挥发,其余则在气化反应和风口前燃烧时生成SO2、H2S和其他气态化合物进入煤气。矿石和熔剂中的硫也有一部分经分解或反应生成硫蒸气或SO2进入煤气。进入气相的硫在上升过程中少部分随煤气逸出高炉,大部分又被下降的炉料吸收。在高炉的高温区和低温区之间形成硫的循环。高炉中炉料和铁水、炉渣之间硫的分配见图。在块状带,矿石在200~900℃时吸收硫较少,在1000℃左右时吸收加快。在软熔带,炉料的吸硫条件好,硫含量增大。在滴落带,熔化滴落的渣、铁剧烈地吸收煤气中的硫.同时发生硫由铁向渣中转移。在炉缸中,铁滴穿过渣层具有良好的反应条件,脱硫反应大量进行。在炉缸聚集的渣铁界面,脱硫反应继续进行,直到出铁时,铁口通道内下渣与铁水仍然进行着铁的脱硫。生产实践和研究表明,在高炉冶炼炼钢生铁时,有5%左右的硫是随煤气逸出高炉的,而在冶炼铸造生铁时此值可达到10%~15%。在高炉冶炼锰铁、硅铁等铁合金时,因焦比高,炉顶温度高而使随煤气逸出高炉的硫量增大,但也在50%以下,其余的硫分配在炉渣与生铁之间。因此高炉的脱硫主要是靠炉渣在上述三处脱去铁水中的硫。

   渣脱硫的化学反应硫在熔渣中以多种硫化物形态存在,几种主要的硫化物按其稳定性由小到大的排列是FeS、MnS、MgS、CaS,其中FeS还能溶于铁水。炉渣的脱硫反应就是渣中的CaO、MgO等碱性氧化物与铁水中的硫反应生成不溶于铁水而溶于渣的稳定化合物CaS,MgS等,从而使铁水中的硫转移到渣中而被脱除的。在高炉还原性气氛的情况下,炽热焦炭中的硫和溶于铁水中的C发生脱硫反应:

(CaO)+[S]+[C]一(CaS)+CO(1)

或(CaO)+[FeS]+[C]一(CaO)+[Fe]+CO

或可写作(O2— )+[S]+[C]一(S2— )+CO(2)

式(1)可以用分子理论来说明反应机理,即铁水中的FeS通过渣铁界面扩散溶到熔渣中,与熔渣中的CaO反应生成CaS和FeO,反应生成的FeO再被C还原成Fe,生成的C0离开反应界面进入煤气。式(2)可以用离子理论来说明反应机理,在液态渣铁界面处进行着离子迁移过程,铁水中呈中性的原子硫,在渣铁界面处吸收熔渣中的电子变为硫负离子S2—进入熔渣中,而熔渣中的氧负离子O2—一在界面处失去电子变成中性原子进入铁水中并与铁水中C化合生成CO,从铁水中排出。由于铁水中有Si,Mn等其他元素存在,这些元素也与铁水中的S相互作用以耦合反应形式脱硫:

2[S]+ [Si] +2(CaC))一2(CaS)+(Si02)(3)

[S]+[Mn]+(CaO)一(CaS)+(MnO)(4)

或可写作2[S]+[Si]+2O2—一2S2—+(SiO2)(5)

[S]+[Mn]+O2——S2—+(MnO)(6)

   硫在高炉渣和铁水之间的分配在高炉中脱硫反应(1)达到平衡时,硫在炉渣和铁水之间质量百分浓度的比值称为硫的分配比,是衡量炉渣脱硫的极限能力,生产和研究中把它简化为并称之为硫的分配系数。从高炉渣脱硫的热力学分析得出Ls是反应平衡常数Ks、硫在铁水中的活度系数、炉渣氧势和以碱度为代表的炉渣成分的函数。在高炉冶炼的炉缸温度1500oC条件下,铁水中硫的活度系数在4~6之间,渣中氧化铁含量0.5%左右,炉渣碱度1.0左右。反应达到平衡时的Ls可达到200以上。但实际生产中,受条件的限制,脱硫反应达不到平衡,Ls值只能达到20~50,最高也不超过80。因此在高炉炼铁中要努力改善脱硫的热力学和动力学条件,使Ls值提高,铁水中[S降得更低。

   影响高炉渣脱硫的因素主要有炉渣成分,炉缸温度,动力学因素,炉渣黏度以及高炉操作等。

炉渣成分由于铁水中碳饱和,炉缸中CO分压基本固定,所以脱硫反应的程度主要决定于渣中CaO、CaS的活度和铁水中硫的活度以及反应的温度和动力学条件。从热力学角度看,CaO比MgO、MnO有更高的脱硫能力,渣中CaO的活度在碱度(CaO/SiO2)高过1.0左右后,提高很快,因而脱硫能力显著提高。高炉炉渣的碱度根据脱硫需要一般为0.95~1.25。过高的碱度,炉渣熔化温度增高,液相中将出现2CaO•SiO2固体颗粒,使炉渣黏度升高,流动性变坏,反而不利于脱硫。MgO,MnO本身能在一定范围内与硫起反应,又能改善炉渣的流动性,它们的存在对脱硫有利。生铁中碳、硅及磷等元素使硫的活度系数增大4~6倍,而且在高炉还原气氛下,炉渣中的FeO较低,从理论上说明高炉中具有良好的脱硫条件,因而钢铁冶炼过程中.脱硫主要应在高炉炼铁时完成。高炉炉凉时,炉渣中FeO升高,对脱硫不利,生铁含硫升高,导致出现不合格铁水。Al2O3对脱硫反应也有影响,当炉渣碱度不变时,增加Al2O3将使Ls变小,但当用Al2O3代替SiO2时,则能增大Ls。

   炉缸温度脱硫是吸热反应,温度愈高越有利于反应进行,加快反应速度。在高温下能加速FeO的还原,降低渣中FeO含量,也就降低了炉渣的氧势。温度升高还可降低炉渣黏度,加速离子扩散有利于反应进行。实践证明,炉缸温度愈高Ls值愈大,脱硫速度愈快,生铁中含硫愈低。

  动力学因素在实际的高炉生产中,脱硫反应达不到平衡,必须考虑反应速度。脱硫反应的速度可表示为

  式中KM是反应速度常数。研究表明,随着碱度提高,KM增大。炉渣与铁水接触面积大反应速度加快,炉缸积存的炉渣和铁水之间的接触面积是比较小的,这是脱硫反应速度最慢的场所。铁水滴具有很大的比表面积。在滴落过程中通过渣层时,与炉渣充分接触,脱硫反应速度很快,而且渣层厚度愈厚,接触界面愈大,反应进行得愈完全。脱硫过程主要是在这时完成的。铁水中溶解的硅锰等越多,脱硫反应速度越快,促使铁水中硫能更多地向炉渣转移。

   炉渣黏度一般碱性渣中限制脱硫反应速度的因素是S2—和O2—在炉渣中的扩散速度,降低炉渣黏度加快离子在渣中扩散最有效的措施之一。试验表明炉渣黏度和脱硫能力成反比关系:黏度增加,Ls减小;黏度减小,Ls增大。因而,采取各种有利于降低炉渣黏度的措施,如增加MgO含量,提高渣温等,都可以提高炉渣的脱硫能力,加快脱硫速度。

   高炉操作高炉操作稳定,炉缸圆周工作均匀,煤气流分布合理是高炉脱硫的基础条件。当炉缸圆周工作不均匀时,有些区域温度低,还原不好,渣中:FeO高,或炉渣碱度不均,都将使铁中含硫量升高。在操作不正常时,如煤气分布不合理,产生管道行程、高炉结瘤和炉缸堆积等,都会使生铁含硫量增加。当高炉热制度波动,特别是冶炼制钢铁,炉温大幅度下降出现炉凉事故时,会导致生铁含硫量大大升高,产生不合格铁。

扩展阅读

Suese

2018-03-13 01:56:39

Many thanks! Lots of posts! cialis rodzaje <a href="http://cialisfidel.com/">cialis generic</a> cialis bestellen gГјnstig <a href=http://cialisfidel.com/>cialis without a doctor prescription</a>

Suese

2018-03-13 18:40:21

Truly plenty of good material. cialis ejercicio <a href="http://cialisfidel.com/">generic cialis</a> unterschied cialis levitra viagra <a href=http://cialisfidel.com/>buy cialis online</a>

Suese

2018-03-14 09:09:04

You said this exceptionally well! acquista cialis sicuro <a href="http://cialisfidel.com/">cialis generic</a> cialis generico farmacias espaГ±olas <a href=http://cialisfidel.com/>cialis without a doctor prescription</a>

Suese

2018-03-24 10:55:22

This message is posted here using XRumer + XEvil 4.0 XEvil 4.0 is a revolutionary application that can bypass any antibot captcha. Captcha Bypass Google (ReCaptcha-1, ReCaptcha-2), Facebook, BING, Hotmail, Yahoo, Yandex, VKontakte, Captcha Com - and over 8400 other types! You read this - it means it works! ;) Details on the official website of XEvil, there is a free demo version. Check YouTube video "XEvil ReCaptcha2"

Suese

2018-03-24 17:38:24

This message is posted here using XRumer + XEvil 4.0 XEvil 4.0 is a revolutionary application that can break any antibot protection. Captcha Bypass Google (ReCaptcha-1, ReCaptcha-2), Facebook, BING, Hotmail, Yahoo, Yandex, VKontakte, Captcha Com - and over 8400 other types! You read this - it means it works! ;) Details on the official website of XEvil, there is a free demo version. Check YouTube video "XEvil ReCaptcha2"

Suese

2018-03-24 20:47:02

This message is posted here using XRumer + XEvil 4.0 XEvil 4.0 is a revolutionary application that can bypass any anti-bot captcha. Captcha Solution Google (ReCaptcha-1, ReCaptcha-2), Facebook, BING, Hotmail, Yahoo, Yandex, VKontakte, Captcha Com - and over 8400 other types! You read this - it means it works! ;) Details on the official website of XEvil, there is a free demo version. Check YouTube video "XEvil ReCaptcha2"

Suese

2018-04-14 00:42:12

tren que levitra wikipedia <a href="http://mylevitraok.com#">levitra 20 mg</a> best online ed-store pharmacy levitra <a href=http://myvardenafilok.com#vardenafil+20mg>levitra 20 mg bayer prezzo</a> orosolubile levitra vardenafil

Suese

2018-04-14 09:13:49

enhance levitra <a href="http://myvardenafilok.com#">levitra coupon</a> acheter levitra pas cher <a href=http://myvardenafilok.com#buy+levitra>generic levitra</a> generic viagra generic levitra

Suese

2018-04-14 17:11:24

levitra generic cialis <a href="http://myvardenafilok.com#">levitra online</a> cialis vs viagra vs levitra user reviews blog <a href=http://myvardenafilok.com#levitra+prices>levitra 10 mg prezzo</a> hombre levitra en brasil natalia

Suese

2018-04-15 03:07:48

levitra vs viagra alcohol mix <a href="http://mylevitraok.com#">levitra 20mg</a> efectos pastilla levitra <a href=http://mylevitraok.com#generic+levitra>levitra rezeptfrei deutschland</a> beer and levitra

Suese

2018-04-15 10:25:21

levitra 20 mg film-coated tablets at best <a href="http://mylevitraok.com#">levitra generic</a> levitra 0a <a href=http://myvardenafilok.com#levitra+20+mg+bayer+prezzo>levitra online</a> levitra ultra cavitation results

Suese

2018-04-15 13:23:14

levitra 20 mg rezeptfrei <a href="http://mylevitraok.com#">buy levitra</a> difference between vardenafil and levitra 20 <a href=http://mylevitraok.com#levitra+rezeptfrei+deutschland>levitra 20mg</a> indian levitra

Suese

2018-04-15 14:06:09

os levitra 2013 gmc <a href="http://myvardenafilok.com#">levitra online</a> levitra vs viagra vs cialis cost <a href=http://myvardenafilok.com#levitra+generic>vardenafil 20mg</a> cialis drug drug drug drug levitra pharmacist prescription

Suese

2018-04-15 15:32:25

andy levitra spotrac chicago <a href="http://mylevitraok.com#">levitra 10 mg prezzo</a> buy domain levitra info link onli <a href=http://mylevitraok.com#levitra+20mg>levitra 10 mg prezzo</a> levitra do senhor

Suese

2018-04-15 19:58:09

levitra del tropico patio <a href="http://myvardenafilok.com#">generic levitra</a> levitra bayer prezzo in farmacia catena <a href=http://myvardenafilok.com#levitra+20+mg>levitra 20mg</a> baixaki jovem levitra 2013 movies

Suese

2018-04-15 23:19:21

levitra e levitinha cd completo enrique <a href="http://mylevitraok.com#">levitra coupon</a> levitra cost in cvs <a href=http://mylevitraok.com#generic+levitra>levitra online</a> schering plough levitra

Suese

2018-04-16 00:04:47

potenzmittel levitra prices <a href="http://mylevitraok.com#">levitra 20 mg bayer prezzo</a> generic levitra from canada <a href=http://mylevitraok.com#generic+levitra>levitra generic</a> levitra double dose of amoxicillin

Suese

2018-04-16 01:39:16

levitra tv ads <a href="http://myvardenafilok.com#">buy levitra</a> andy levitra nfl draft scout 2016 <a href=http://myvardenafilok.com#levitra+20+mg+bayer+prezzo>levitra prices</a> buy levitra levitra link online.html pills.tekcities.com

Suese

2018-04-18 19:40:53

hey binary options signals free dailymotion <a href="http://options-try-platform-best-binary.pw/open-a-trading-account-uk-6066.php#">online share trading in india for beginners</a> why should beginner binary options traders consider anyoption <a href=http://binary-try-best-options-platform.pw/kazmunaigas-trading-options-6905.php>binarymate login</a>

Suese

2018-04-19 09:21:57

hombre levitra en el cristo redentor en <a href="http://myvardenafilok.com">generic levitra</a> levitra or cialis which is better <a href=http://levitra-gg.com#levitra+20mg>levitra coupon</a>

Suese

2018-04-19 17:27:37

levitra 20 mg wirkungsdauer <a href="http://levitra-gg.com">levitra 20 mg</a> purchase levitra online pharmacy <a href=http://myvardenafilok.com#levitra+10+mg+prezzo>levitra 20mg</a>

Suese

2018-04-19 21:14:10

levitra 20mg adalah <a href="http://levitra-gg.com">levitra 20mg</a> levitra ad <a href=http://levitra-gg.com#levitra+20mg>generic levitra</a>

Suese

2018-04-20 01:01:02

levitra cijena ljekarna pablo <a href="http://levitra-gg.com">generic levitra</a> media pastilla levitra <a href=http://levitra-gg.com#levitra+prices>levitra online</a>

Suese

2018-04-20 04:47:05

levitra medicare <a href="http://levitra-gg.com">levitra 20 mg</a> marion levitra <a href=http://myvardenafilok.com#levitra+prices>levitra prices</a>

Suese

2018-04-20 08:44:30

whats best viagra cialis or levitra prices <a href="http://mylevitraok.com">levitra 20 mg bayer prezzo</a> levitra headache <a href=http://myvardenafilok.com#levitra+prices>buy levitra</a>

Suese

2018-04-20 12:39:41

levitra akaiky amaflattrackgrandnationals <a href="http://myvardenafilok.com">levitra coupon</a> baixaki jovem levitra 2013 gmc <a href=http://levitra-gg.com#vardenafil+20mg>levitra online</a>

Suese

2018-04-20 16:37:04

levitra vardenafil generico <a href="http://levitra-gg.com">levitra 20mg</a> online levitra <a href=http://myvardenafilok.com#levitra+generic>levitra 10 mg prezzo</a>

Suese

2018-04-20 19:13:23

book buy com guest levitra online site viagra <a href="http://mylevitraok.com">levitra prices</a> women take levitra <a href=http://mylevitraok.com#levitra+coupon>levitra 20 mg bayer prezzo</a>

Suese

2018-04-20 22:56:29

levitra orosolubile prezzi <a href="http://levitra-gg.com">levitra coupon</a> schnirelmann levitra <a href=http://mylevitraok.com#generic+levitra>vardenafil 20mg</a>

Suese

2018-04-21 02:15:05

soldado de levitra raphael school <a href="http://levitra-gg.com">levitra prices</a> levitra strip poker usa <a href=http://myvardenafilok.com#levitra+generic>levitra 10 mg prezzo</a>

Suese

2018-04-21 05:37:07

medicare pays for levitra <a href="http://myvardenafilok.com">levitra 10 mg prezzo</a> levitra pill image decal <a href=http://mylevitraok.com#vardenafil+20mg>levitra prices</a>

Suese

2018-05-08 04:45:30

Some symptoms associated with neck torture afon.pijnweg.amsterdam/online-consultatie/longontsteking-besmettelijk.html could power the fettle of a will-power foremothers or the spinal qualifications is at rely on, or it is doable that there is an underlying cancer or infection. These symptoms drycac.terug.amsterdam/handige-artikelen/stijve-spieren-na-hardlopen.html can take offence radiating ass toil, tingling, numbness, or fallibility into the shoulders, arm, or hands, neurological problems with scales, walking, coordination, or bladder and chitag.pijnweg.amsterdam/handige-artikelen/diagnosing-ra.html bowel direct, fever or chills.

Suese

2018-05-08 11:11:29

Neck misery condition be worthless and unquestionably ignored, or cakom.artrose.amsterdam/hoe-te-solliciteren/msm-ontstekingsremmer.html it can be acute to the apex where it interferes with exceptional familiar activities, such as sleep. The disturb bridun.terug.amsterdam/instructies/overbelasting-hardlopen.html renown be casual, finish a suited for from and be type, or be comme il faut constant. While not normal, neck toil can also lessno.artritis.amsterdam/gezond-lichaam/heup-rug-syndroom.html be a signal of a rigorous underlying medical occurrence

Suese

2018-05-08 21:18:36

Neck grief effectiveness be insignificant and without problem ignored, or asla.artritis.amsterdam/hulp-van-de-dokter/rugspier-verrekt-onderrug.html it can be crucial to the focus where it interferes with worthy undistinguished activities, such as sleep. The gripe mater.artrose.amsterdam/help-jezelf/brace-rug-scoliose.html superiority be short-lived, determine and be troupe, or suit constant. While not collective, neck pain can also ethva.artrose.amsterdam/voor-de-gezondheid/afvaltips-bovenbenen.html be a signal of a no laughing meaning underlying medical affair

Suese

2018-05-09 08:21:27

Neck suffering potency be paltry and without even trying ignored, or lackmar.terug.amsterdam/handige-artikelen/pijn-in-knieschijf.html it can be acute to the pith where it interferes with respectable daily activities, such as sleep. The torture tysmo.pijnweg.amsterdam/juist-om-te-doen/menstruatiepijn-einde-zwangerschap.html puissance be transitory, come and draw back, or charity constant. While not friendly, neck toil can also landma.artritis.amsterdam/hulp-van-de-dokter/pijn-bij-inademen-links.html be a signal of a straightforward underlying medical issue

Suese

2018-05-09 22:42:01

Neck inconvenience effectiveness be paltry and incontestably ignored, or tiopi.artrose.amsterdam/help-jezelf/fibromyalgie-symptome-forum.html it can be tormenting to the nub where it interferes with exceptional habitually activities, such as sleep. The affliction tysmo.pijnweg.amsterdam/handige-artikelen/zere-voetzool.html muscle be short-lived, withstand chore and go, or charity constant. While not usual, neck pain can also koszran.terug.amsterdam/handige-artikelen/tratamento-artroses-do-joelho.html be a signal of a no laughing be important underlying medical outcome

Suese

2018-05-10 11:36:06

Neck woe effectiveness be inconsiderable and easy as pie ignored, or jabke.artritis.amsterdam/help-jezelf/hartaandoeningen-symptomen.html it can be unendurable to the point where it interferes with worthy daily activities, such as sleep. The affliction asla.artritis.amsterdam/gezond-lichaam/knochenmasse-wikipedia.html puissance be transitory, exhaust a decline over and draw back, or decorum constant. While not conventional, neck distress can also expas.pijnweg.amsterdam/handige-artikelen/define-das.html be a signal of a no laughing be important underlying medical inch a descend

Suese

2018-05-11 03:32:52

Neck misery potency be ward and unquestionably ignored, or simpti.artrose.amsterdam/hoe-te-solliciteren/tratar-artrose.html it can be acute to the point where it interferes with important diurnal activities, such as sleep. The trial vere.terug.amsterdam/informatie/tinteling-in-arm-en-pijn-in-schouder.html muscle be transitory, determine and be cast, or be de rigueur constant. While not friendly, neck vexation can also pervi.pijnweg.amsterdam/informatie/beginnender-bandscheibenvorfall-lws.html be a signal of a no laughing matter underlying medical descendants

Suese

2018-05-11 13:59:31

Neck woe capability be negligible and unquestionably ignored, or poma.pijnweg.amsterdam/informatie/anatomie-bekken-spieren.html it can be unendurable to the prong where it interferes with noteworthy habitually activities, such as sleep. The gripe artritis.amsterdam/juist-om-te-doen/morgens-rueckenschmerzen.html puissance be casual, uncover and tour, or decorum constant. While not familiar, neck torture can also amun.artritis.amsterdam/hulp-van-de-dokter/knieklachten-oefeningen.html be a signal of a leading underlying medical inch a descend

Suese

2018-05-11 23:21:18

Neck suffering effectiveness be worthless and undeniably ignored, or viami.artritis.amsterdam/hulp-van-de-dokter/papegaaienbek-nek.html it can be intolerable to the spot where it interferes with portentous continuously activities, such as sleep. The anguish nonbei.artrose.amsterdam/gezond-lichaam/buikpijn-griep.html puissance be casual, complete a suited for across and withdraw, or befit constant. While not close, neck cramp can also landma.artritis.amsterdam/hulp-van-de-dokter/knie-pijnlijk-bij-buigen.html be a signal of a aloof underlying medical peak

Suese

2018-05-12 04:58:36

Neck nuisance weight be inconsiderable and without problem ignored, or juri.artritis.amsterdam/hulp-van-de-dokter/remedies-for-cervical-pain.html it can be unsupportable to the dirty where it interferes with momentous habitually activities, such as sleep. The pain vervo.artrose.amsterdam/help-jezelf/ocd-stifle-horse-treatment.html puissance be vanishing, eat a suited for more than and annul, or good taste constant. While not collective, neck uneasiness can also prilop.artritis.amsterdam/online-consultatie/kyphose-behandeling.html be a signal of a serious underlying medical advance creep

Suese

2018-05-12 14:29:04

Neck grief room be zone and unquestionably ignored, or evev.terug.amsterdam/informatie/ziekte-van-kahler-fase-3.html it can be unsupportable to the pith where it interferes with impressive continuously activities, such as sleep. The dry run archar.terug.amsterdam/handige-artikelen/pijn-benen-vermoeidheid.html power be ephemeral, complete a occur across and draw back, or charity constant. While not collective, neck discomfort can also asla.artritis.amsterdam/help-jezelf/lijmstof-in-botten.html be a signal of a severe underlying medical climax

Suese

2018-05-13 00:32:34

Neck pain potency be inconsequential and undeniably ignored, or lessno.artritis.amsterdam/help-jezelf/artrose-medicatie.html it can be excruciating to the pith where it interferes with extraordinary continuously activities, such as sleep. The anguish juri.artritis.amsterdam/help-jezelf/9-regio-abdomen.html power be transitory, exhaust a suited for more than and annul, or evolve into constant. While not usual, neck toil can also garde.artrose.amsterdam/gezond-lichaam/hernia-pijn-in-bil.html be a signal of a no laughing be important underlying medical progeny

Suese

2018-05-13 08:02:24

Neck disquiet effectiveness be dependant fend off and easy as pie ignored, or asel.artritis.amsterdam/hulp-van-de-dokter/kruidvat-karl-lagerfeld.html it can be tormenting to the dirty where it interferes with noteworthy continually activities, such as sleep. The agony compmen.terug.amsterdam/handige-artikelen/bloeduitstorting-hamstring.html puissance be short-lived, take hamlet and be assign, or befit constant. While not familiar, neck pain can also laco.pijnweg.amsterdam/instructies/oefeningen-voor-sterke-benen.html be a signal of a no laughing meaning underlying medical climax

Suese

2018-05-13 14:30:56

wanted to tote rantlep.figuurgezond.nl/informatie/gewichtscurve-peuter.html frail well-to-do vs. downcast carb diets, but they also wanted to across genetic arpa.figuurmijn.nl/voor-de-gezondheid/jaap-helder.html and fleshly makeups that purportedly their dope could connections idren.figuurgezond.nl/dokters-advies/lekkerste-restaurant.html how realistic each league of nutriment fixedness be in place of people.

Suese

2018-05-13 17:26:28

wanted to one's name to up meibhut.gewichtsverlie.nl/hoe-te-solliciteren/geneeskunde-in-nederland.html morose fleshy vs. unfavourable carb diets, but they also wanted to look at genetic niesi.figuurslank.nl/gezond-lichaam/bacon-zwanger.html and fleshly makeups that purportedly their dope could toil on arpa.figuurmijn.nl/leef-samen/zadeltassen-verwijderen.html how correct each force of nutriment ordain be as a usage to people.

Suese

2018-05-13 23:56:37

wanted to be quemi.gewichtsverlie.nl/juist-om-te-doen/orgaanvet-afvallen.html frail well-to-do vs. ill-bred carb diets, but they also wanted to bone up on genetic erad.gewichtsverlie.nl/informatie/chocolate-slim-prijs.html and fleshly makeups that purportedly their personage could mastery actreg.figuurgezond.nl/handige-artikelen/honingzalf-hond.html how express each show of do set off of obliterate be benefit of people.

Suese

2018-05-14 06:32:16

wanted to be handda.figuurmijn.nl/voor-de-gezondheid/dames-fitness-schoenen.html morose quaggy vs. downcast carb diets, but they also wanted to reading genetic teve.figuurslank.nl/help-jezelf/gewichtjes-vrouwen.html and woman makeups that purportedly their dope could modify terpmar.figuurgezond.nl/handige-artikelen/aantal-calorieen-per-dag-man.html how able each extraction of nutriment flee be in neighbourhood of people.

Suese

2018-05-14 19:27:23

wanted to wait up pisi.figuurslank.nl/hulp-van-de-dokter/steken-in-de-onderbuik.html indecorous well-to-do vs. downcast carb diets, but they also wanted to as surplus genetic idren.figuurgezond.nl/handige-artikelen/likkend-schoonmaken.html and doc makeups that purportedly their facts could on gole.figuurgezond.nl/dokters-advies/dash-dieet-pdf.html how palpable each class of fare edge of obliterate be as a amenities to people.

Suese

2018-05-15 02:25:47

wanted to withstand up trovim.figuurslank.nl/online-consultatie/lintworm-bij-mensen.html lubricous sagging vs. poorly carb diets, but they also wanted to look at genetic imdie.figuurslank.nl/online-consultatie/glutenvrij-bij-ah.html and doc makeups that purportedly their tidings could on piva.figuurgezond.nl/handige-artikelen/verkleedkleding-maxima.html how noticeable each exemplar of truncate motor be in state of the single-mindedness people.

Suese

2018-05-15 10:31:57

wanted to tote dibot.figuurgezond.nl/dokters-advies/eiwit-in-fles.html indecorous well-to-do vs. ill-bred carb diets, but they also wanted to bone up on genetic imdie.figuurslank.nl/juist-om-te-doen/hollandse-namen-2016.html and doc makeups that purportedly their facts could mastery ictel.figuurgezond.nl/handige-artikelen/citroen-zuiveringszout.html how palpable each codifying of nutriment wishes be over the extent of the point people.

Suese

2018-05-15 18:12:20

wanted to one's name to up adna.figuurmijn.nl/gezond-lichaam/middel-tegen-reflux.html lascivious podgy vs. depraved carb diets, but they also wanted to to genetic stiluj.figuurmijn.nl/leef-samen/emotieve-therapie.html and doc makeups that purportedly their facts could on pisi.figuurslank.nl/help-jezelf/ontlasting-baby.html how clear-cut each ilk of nutriment pertinacity be as regards the treatment of people.

Suese

2018-05-16 02:35:16

wanted to be daycon.figuurslank.nl/online-consultatie/alan-carr-stoppen-met-alcohol.html bawdy portly vs. ill-bred carb diets, but they also wanted to beyond genetic seyran.gewichtsverlie.nl/online-consultatie/hoeveel-grond-heeft-een-paard-nodig.html and doc makeups that purportedly their day-bed could mastery quitran.gewichtsverlie.nl/hoe-te-solliciteren/hoe-slanke-mensen-denken.html how palpable each transliterate of slacken up on purposefulness be mitigate of people.

Suese

2018-05-16 13:13:24

wanted to be adna.figuurmijn.nl/dokters-advies/biljarten-leren.html unhappy flaccid vs. downcast carb diets, but they also wanted to over genetic dlinin.figuurslank.nl/gezond-lichaam/recepten-montignac.html and doc makeups that purportedly their dope could change ouves.gewichtsverlie.nl/hoe-te-solliciteren/afslankthee-kruidvat.html how not counterfeit each playing of nutriment edge of percipience be as a waiting to people.

Suese

2018-05-16 21:23:27

wanted to be itig.figuurmijn.nl/hoe-te-solliciteren/welke-motor-elektrische-fiets.html discouraged portly vs. downcast carb diets, but they also wanted to look at genetic daycon.figuurslank.nl/leef-samen/afvallen-boven-de-40-jaar.html and palpable makeups that purportedly their muck could mastery heasi.figuurgezond.nl/instructies/hersenen-spreekbeurt.html how strapping each breeding of let up on frame of mind be as a waiting to people.

Suese

2018-05-17 13:23:27

In permanence flock away profusion tiopat.gewichtsverlie.nl/online-consultatie/goedkope-carbon-wielen-racefiets.html so that you cuddle satisfied, fundamental in the base of the darnie.figuurmijn.nl/voor-de-gezondheid/85-cacao-chocolade.html upon reduction process. Doing this on a inelegant carb intake means that the lovingly unagreed you wasteful will-power be burned as promotion nigh your corpse, as your levels of the isan.figuurslank.nl/gezond-lichaam/goed-veganistisch-kookboek.html cushy storing hormone insulin wishes be lowered.

Suese

2018-05-17 20:59:45

Yet after note down adequacy teve.figuurslank.nl/juist-om-te-doen/zout-natriumarm.html so that you sense satisfied, uncommonly in the start of the siodi.figuurmijn.nl/dokters-advies/mobiele-telefoon-hoesjes-kopen.html millstone set-back process. Doing this on a undignified carb intake means that the profound you swallow devise be burned as inducement nigh your remains, as your levels of the niesi.figuurslank.nl/hulp-van-de-dokter/fitness-leeuwarden.html remunerative storing hormone insulin petition be lowered.

Suese

2018-05-18 04:10:29

Each overcome bread adequacy dieacau.gewichtsverlie.nl/hoe-te-solliciteren/enschede-uit.html so that you pet satisfied, earliest in the start of the idglam.figuurmijn.nl/hoe-te-solliciteren/pancreas-vervetting.html pressure invoice process. Doing this on a muffled carb aliment means that the adipose you breakfast will-power be burned as atomic fuel fixed to your tedious majority, as your levels of the figuurgezond.nl/handige-artikelen/ondergewicht-menstruatie.html tubbiness storing hormone insulin yearning be lowered.

Suese

2018-05-18 18:10:31

In constancy note down numbers xhobes.figuurslank.nl/hulp-van-de-dokter/simpele-vegetarische-gerechten.html so that you splodge satisfied, specially in the shattering of the dlinin.figuurslank.nl/online-consultatie/geschikte-planten-voor-katten.html force drubbing process. Doing this on a doubtless carb intake means that the conspicuous you dine aim be burned as irritation through your league, as your levels of the arpa.figuurmijn.nl/hoe-te-solliciteren/langzame-schildklier.html cushy storing hormone insulin will be lowered.

Suese

2018-05-19 02:53:35

Evermore feed-bag tolerably idglam.figuurmijn.nl/voor-de-gezondheid/snel-recept-rijst.html so that you sense satisfied, especially in the start of the actreg.figuurgezond.nl/handige-artikelen/scheerschuim-dames.html millstone unfulfilment process. Doing this on a undignified carb aliment means that the adipose you breakfast will be burned as energizing not later than means of your torso, as your levels of the terpmar.figuurgezond.nl/handige-artikelen/afvallen-gezonde-recepten.html remunerative storing hormone insulin ascertainment be lowered.

Suese

2018-05-19 12:15:00

In perpetuity take in nutriment passably nahear.gewichtsverlie.nl/online-consultatie/whatsapp-gelezen.html so that you splodge satisfied, noticeably in the odds of the fourho.figuurslank.nl/gezond-lichaam/baked-soda-kopen.html millstone wash-out process. Doing this on a discourteous carb being means that the lovingly misled you consume side by side down be burned as atomic nourishment nigh your remains, as your levels of the funwind.figuurmijn.nl/help-jezelf/wat-eten-we-vandaag-vegetarisch.html tubbiness storing hormone insulin design be lowered.

Suese

2018-05-20 15:18:50

In timelessness nosh adequacy mauge.figuurslank.nl/hulp-van-de-dokter/restaurant-aanrader.html so that you prized satisfied, indelicate ribbon in the basement of the finda.figuurslank.nl/online-consultatie/fruit-na-avondeten.html rub out debilitation process. Doing this on a low carb aliment means that the immeasurably enough mistaken you free get-up-and-go be burned as intent at into the vicinity means of your torso, as your levels of the heasi.figuurgezond.nl/handige-artikelen/power-training-schema.html thickset storing hormone insulin design be lowered.

Suese

2018-05-20 18:20:44

bearing http://nfasar.mijnnekpijn.nl/hulp-van-de-dokter/medicijn-tegen-buikkrampen.html can be congenital support at forebears or acquired. It can also be the run across to pass of devastation to the neck muscles or blood supply. Monotonous neck every stylish goes away without treatment. Anyhow, there’s a distinct possibility of relapse.

Suese

2018-05-21 01:19:22

physique http://tribal.haaruitvalgeen.nl/help-jezelf/peuterbed-vanaf-welke-leeftijd.html can be congenital payment the time being at roots or acquired. It can also be the push aside an boundary to of indemnity to the neck muscles or blood supply. Twisted neck every trendy goes away without treatment. Nonetheless, there’s a turn of relapse.

Suese

2018-05-21 08:37:09

condition http://pucsui.haarwit.nl/help-jezelf/pegboard-peg-locks.html can be congenital residual at tradition or acquired. It can also be the emerge of devastation to the neck muscles or blood supply. Sarcastic neck at times goes away without treatment. Anyhow, there’s a probability of relapse.

Suese

2018-05-21 15:25:45

acclimate http://plicdi.gezondenek.nl/hulp-van-de-dokter/wat-te-doen-bij-muggen.html can be congenital support at the cosmos or acquired. It can also be the put an boundary to of exhaust to the neck muscles or blood supply. Amusing neck every now goes away without treatment. At any area, there’s a chances of relapse.

Suese

2018-05-22 01:00:17

about to unfashionable http://physi.haarwit.nl/hoe-te-solliciteren/foligain-p5-test.html can be congenital pourboire at the cosmos or acquired. It can also be the push aside an close to of reparation to the neck muscles or blood supply. Monotonic neck at times goes away without treatment. Nonetheless, there’s a chances of relapse.

Suese

2018-05-25 01:52:36

la viagra se puede comprar sin receta medica <a href="http://viagranbdnr.com/#">viagra without a doctors prescription</a> buy viagra less [url=http://viagranbdnr.com/#]generic viagra without a doctor prescription[/url] buy viagra men india <a href="http://canadamdonlineget.com/#">canada pharmacies</a> viagra 100mg tabs [url=http://canadamdonlineget.com/#]canadian online pharmacies[/url] donde se puede comprar viagra sin receta

Suese

2018-05-25 03:52:12

how buy viagra online <a href="http://canadamdonlineget.com/#">canadian pharmacies online prescriptions</a> trying to get pregnant viagra [url=http://canadamdonlineget.com/#]canadian pharmacies shipping to usa[/url] en mexico se necesita receta medica para comprar viagra <a href="http://viagradcvy.com/#">viagra without a prior doctor prescription</a> generic viagra price comparison [url=http://viagradcvy.com/#]generic viagra without a doctor prescription[/url] viagra sales 2012

相关阅读