链条锅炉炉拱节能改造

<p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: center;"><font size="4"><b style="mso-bidi-font-weight: normal;"><span style="FONT-SIZE: 18pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">链条锅炉炉拱节能改造</span></b><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="FONT-SIZE: 18pt; LINE-HEIGHT: 150%;"><p></p></span></b></font></p><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: center;"><font size="4"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">山东恒源阳光热电</span><span lang="EN-US">(</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">集团</span><span lang="EN-US">)</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">有限公司隋光玉王文强</span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">摘要：</span><span lang="EN-US">UG</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">－</span><span lang="EN-US">35</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">／</span><span lang="EN-US">3.82</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">－</span><span lang="EN-US">M6</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型锅炉通过前后拱的节能改造，可以燃烧挥发份低的煤种，燃烧效率得到提高，每年将取得良好的经济效益。</span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><b style="mso-bidi-font-weight: normal;"><font size="4"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">关键词：锅炉，炉拱节能改造</span><span lang="EN-US"><p></p></span></font></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US">1</span></b><b style="mso-bidi-font-weight: normal;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">前言</span><span lang="EN-US"><p></p></span></b></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">为了与发电用大型锅炉相区别，中国把容量在</span><span lang="EN-US">65</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">吨／时以下为工业生产供热、为建筑物供暖的锅炉称之为工业锅炉。据</span><span lang="EN-US">1998</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">年工业普查统计，全国工业锅炉保有量为</span><span lang="EN-US">52</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">万台、</span><span lang="EN-US">120</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">万蒸吨，其中</span><span lang="EN-US">70</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">％是蒸汽锅炉，其余是热水锅炉，年耗燃料约</span><span lang="EN-US">4</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">亿吨标准煤。工业锅炉型式各异，主要是层燃锅炉</span><span lang="EN-US">(</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">正传链条炉排锅炉多达总数的</span><span lang="EN-US">60</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">％以上</span><span lang="EN-US">)</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">，它们的热效率普遍较低，低于</span><span lang="EN-US">80</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">％者居大多数，高效低污染宽煤种的循环流化床锅炉为数很少。</span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">由于种种原因，如结构设计不合理，制造质量不良，辅机配套不协调，可用煤种与设计不符，运行操作不当等，都会造成锅炉出力不足、热效率低下和输出参数不合格等问题，结果是能源消耗量过大，甚至不能满足生产要求。对于半新以下的锅炉，采取技术改造措施解决问题；经济合理；对于接近寿命期的锅炉，则以更新为佳；究竟采取何种措施，应以技术先进、成熟，经济合理为原则，由于中国锅炉的以上问题比较普遍，所以，节能潜力很大，约达</span><span lang="EN-US">-4000</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">万吨标准煤。由于在用的工业锅炉正转链条炉排锅炉居多数，当前推广应用的节能改造技术，大部分是针对正转链条炉排锅炉的。</span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US">2</span></b><b style="mso-bidi-font-weight: normal;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">炉拱的作用</span><span lang="EN-US"><p></p></span></b></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';"><font size="4">炉内燃烧是一个非常复杂的热化学反应的系统工程，炉膛内的烟气动力场受多方面因素制约．合理组织炉内的热幅射和烟气流动，加强炉内烟气搅动，混合，强化火床和炉膛烟火内的燃烧，维持火床和炉膛高温是前后炉拱重要作用的体现．前拱偏重于引燃新煤，后拱测重于强化主燃区和烤渣燃尽．合理的拱形和尺寸，前后拱的最佳配合，使锅炉达到消烟排尘，安全，高效，经济运行。</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US">3</span></b><b style="mso-bidi-font-weight: normal;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">现状分析</span><span lang="EN-US"><p></p></span></b></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">我公司</span><span lang="EN-US">1</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">、</span><span lang="EN-US">2#</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">锅炉为无锡锅炉厂生产的正转链条锅炉，于</span><span lang="EN-US">1991</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">年投入运行，其型号为</span><span lang="EN-US">UG</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">一</span><span lang="EN-US">35</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">／</span><span lang="EN-US">3.82</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">一</span><span lang="EN-US">M6</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">，设计煤种为烟煤，挥发份为</span><span lang="EN-US">28</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">．</span><span lang="EN-US">7</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">％，对煤种的要求比较苛刻。目前能源形式比较紧张，烟煤价格较高，含硫量比较大，导致锅炉燃烧不是很充分，煤容易结焦下红渣，燃烧效率比较低，不能达到满负荷；而且烟气含硫量较大，对环境污染严重，影响居民生活，又对尾部烟道、电除尘、引风机腐蚀严重，导致尾部烟道漏风，严重影响锅炉的负荷，且每年检修费用高。</span></font></p>

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US">4</span></b><b style="mso-bidi-font-weight: normal;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">改造方案</span><span lang="EN-US"><p></p></span></b></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><span lang="EN-US">UG</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">一</span><span lang="EN-US">35</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">／</span><span lang="EN-US">3.82</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">一</span><span lang="EN-US">M6</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型锅炉是无锡锅炉厂</span><span lang="EN-US">1995</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">年定型生产一种燃用劣质煤的锅炉，其设计煤质为贫煤，挥发份为</span><span lang="EN-US">16</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">％一</span><span lang="EN-US">18</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">％，发热量为</span><span lang="EN-US">5038kcal</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">／</span><span lang="EN-US">kg</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">。该炉型实际运行效果较好，能够燃烧挥发份</span><span lang="EN-US">15</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">％一</span><span lang="EN-US">30</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">％的煤种，对燃料的适应性较好，燃烧效率高。经过考察和论证，决定依据</span><span lang="EN-US">M6</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型锅炉对原锅炉的前后拱进行改造，使其能燃烧挥发份较低的煤种，可以改善燃烧状况，提高燃烧效率，减少燃煤消耗。</span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><span lang="EN-US">M<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="1" unitname="l">1l</chmetcnv></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型锅炉与</span><span lang="EN-US">M6</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型锅炉钢架结构、尺寸及尾部受热面布置基本相同，其区别在于前后拱型式不同以及前后拱处的水冷壁管布置方式不同。</span><span lang="EN-US">M11</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型锅炉前拱为高前拱，后拱长而高，使烟气流速增加，火焰中心前移，延长了煤的燃烧时间；</span><span lang="EN-US">M6</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型锅炉采用低前拱，后拱短而低，不适用于挥发份低的煤种。其拱型式如下：</span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><span lang="EN-US">M11</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型锅炉与</span><span lang="EN-US">M6</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型锅炉相比，前集箱标高为</span><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="1600" unitname="mm"><span lang="EN-US">1600mm</span></chmetcnv><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">，比原集箱低</span><span lang="EN-US">200rmn</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">，前拱角度为</span><span lang="EN-US">45</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">&ordm;，原</span><span lang="EN-US">M6</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型锅炉前拱角度为</span><span lang="EN-US">35</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">&ordm;；后集箱抬高到标高</span><span lang="EN-US">1306ram</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">，比原集箱高</span><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="48" unitname="mm"><span lang="EN-US">48mm</span></chmetcnv><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">，后拱角度为</span><span lang="EN-US">10</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">&ordm;，比原角度低</span><span lang="EN-US">2</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">&ordm;。将</span><span lang="EN-US">M6</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型锅炉改成</span><span lang="EN-US">M11</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型锅炉时，前集箱、后集箱标高需要调整；前联箱角度相差</span><span lang="EN-US">10</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">&ordm;，焊接水冷壁管时不好调整，所以前联箱需要更换，后集箱相差</span><span lang="EN-US">2</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">&ordm;，施工时可以进行调整，因此后集箱不需要更换。前后拱下部水冷壁需全部更换，根据</span><span lang="EN-US">M11</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">型图纸定做水冷壁管，然后进行更换；前后拱需要重新浇注；此外炉前和炉后的下降管</span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';"><font size="4">束也要做适当的调整。</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US">5</span></b><b style="mso-bidi-font-weight: normal;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">效果分析</span><span lang="EN-US"><p></p></span></b></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US">5</span></b><b style="mso-bidi-font-weight: normal;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">．</span><span lang="EN-US">1</span></b><b style="mso-bidi-font-weight: normal;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">实际运行效果</span><span lang="EN-US"><p></p></span></b></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">从改造后的热态运行情况看，</span><span lang="EN-US">1</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">、</span><span lang="EN-US">2#</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">炉都能达到满负荷</span><span lang="EN-US">35t</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">／</span><span lang="EN-US">h</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">运行。燃烧挥发份</span><span lang="EN-US">13.54</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">—</span><span lang="EN-US">32.49</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">的％的煤种负荷都能达到满负荷</span><span lang="EN-US">35t</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">／</span><span lang="EN-US">h</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">，而且燃烧状况良好，炉渣可燃物保持在</span><span lang="EN-US">8</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">一</span><span lang="EN-US">10</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">％，比以前大大较低，锅炉燃烧效率可提高</span><span lang="EN-US">3</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">％左右。</span><span lang="EN-US">l</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">、</span><span lang="EN-US">2#</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">锅炉改造效果十分理想，达到了预期目的。</span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US">5</span></b><b style="mso-bidi-font-weight: normal;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">．</span><span lang="EN-US">2</span></b><b style="mso-bidi-font-weight: normal;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">效益分析</span><span lang="EN-US"><p></p></span></b></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">每台锅炉的改造费用大约</span><span lang="EN-US">25</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">万元，其中水冷壁管</span><span lang="EN-US">8</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">万元，浇筑料</span><span lang="EN-US">10</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">万元，其他</span><span lang="EN-US">7</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">万元。</span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">锅炉改造前必须燃烧挥发份</span><span lang="EN-US">25</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">％以上的烟煤，价格在</span><span lang="EN-US">0.09</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">元／</span><span lang="EN-US">kcal</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">，改造后燃烧</span><span lang="EN-US">15</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">一</span><span lang="EN-US">18</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">％的煤种，价格在</span><span lang="EN-US">0</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">．</span><span lang="EN-US">08</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">元／</span><span lang="EN-US">kcal</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">，按低位发热量在</span><span lang="EN-US">5000kcal</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">／</span><span lang="EN-US">kg</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">的煤每吨可节省</span><span lang="EN-US">50</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">元。每天燃烧</span><span lang="EN-US">120</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">吨煤，每台锅炉每天可节省</span><span lang="EN-US">6000</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">元，投资回收期仅为</span><span lang="EN-US">42</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">天。每年运行</span><span lang="EN-US">7200</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">小时，就可增加效益</span><span lang="EN-US">180</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">万元。</span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><font size="4"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US">6</span></b><b style="mso-bidi-font-weight: normal;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';">结论</span><span lang="EN-US"><p></p></span></b></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.71;"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman';"><font size="4">能源和环境已经成为经济发展和人类生存的首要问题。工业锅炉既是高耗能设备，又是主要的环境污染源之一。工业锅炉应根据自己的实际情况，采取成熟、先进、经济合理的改造措施，提高燃烧效率，节约能源，为建设节约型社会做出更大的贡献。</font></span></p>