南翼采区通风系统优化与通防保障技术研究-阶段性报告2013.10.2

南翼采区通风系统优化与通防保障技术研究阶段性报告兖矿集团济宁二号煤矿山东科技大学二〇一三年九月目录TOC\o"1-2"\h\z\u1矿井概述 12矿井通风阻力测定与分析 22.1测前准备工作 22.2通风阻力解算方法 32.3测定路线选择及测点布置 62.4阻力解算 102.5通风阻力测定结果分析及评价 272.6矿井通风改造技术措施 303主要结论和建议 35南翼采区通风系统优化与通防保障技术研究阶段性报告1矿井概述济宁二号煤矿是兖矿集团有限公司(以下简称兖矿集团)在济宁建设的现代化矿井，位于济宁市任城区境内、济东煤田的中部。济宁二号煤矿的通风方式为中央并列式，通风方法为抽出式，矿井现布置有3个井筒，主、副井进风，中央风井回风。主要通风机为2台上海鼓风机厂生产的GAF31.6-15.8-1型轴流式通风机，1台工作，1台备用，电机功率为1600kW。矿井2012年6月核定通风能力为560万t/a，目前矿井总进风量16285m3/min，总排风量16586m3/min，矿井现在布置有2个采煤工作面、1个备用工作面和13个掘进工作面。南翼采区通风系统优化与通防保障技术研究阶段性究报告2矿井通风阻力测定与分析矿井通风阻力测定是通风技术管理工作的重要内容之一，通过阻力测定可掌握通风系统现状及必要的技术参数，为矿井通风系统优化和日常的通风管理工作提供准确的技术资料和基础数据。2.1测前准备工作(1)测定路线的选择根据测定的要求和目的，结合该矿的生产布局和通风系统的现状，选择1条风流路线长，风量大且包含采煤工作面，能反映矿井通风系统特征的路线作为主测路线，如有需要再选择其他路线作为辅测路线。(2)测点布置测定路线选定后，即可按照通风阻力测定的要求，结合本工作面巷道布置的具体条件，在通风系统示意图上确定出测点的位置和数量，并沿测定路线将测点依次编号。在确定测点布置时一般应遵守下述原则：①测点布置在风流稳定，巷道规整的地点，测点前后支护完好，巷道内无堆积物；②在风流分叉、汇合及局部阻力大的地点；③测点与风流变化点之间应有一定的距离；④测点应尽可能选在标高控制点附近。在井下实测时，还应据现场的实际情况对个别测点进行调整，甚至临时性的增加或减少一些测点。以便使测点的选择能有效的控制主要巷道和工作面的阻力分布情况。(3)测定仪器此次通风阻力测定所用各种设备仪表如表2.1所示：

表2.1阻力测定使用设备仪表一览表仪器名称规格型号数量精密数字气压计JFY-14风表高、中、微速3×2干湿温度计DHM22秒表J9-2Ⅱ2皮尺0～10m2计时表/2(4)测定方法采用精密气压计逐点测定法，即将一台精密气压计放置在地面井口附近，作为基点气压计，监视地面气压变化情况。另将一台气压计沿测定路线按选定的测点进行测定，称为测点气压计。基点气压计每隔5分钟读数，测点气压计在各测点每逢5或10分钟读数，测点气压计读数和基点气压计读数时间相对应，以反映地面气压变化对测点读数的影响，保证测点测定结果的可靠性，在各测点测定风流压力的同时，应测量巷道的风速、断面尺寸、气象条件等。如此依次测定全部的测点，待测点气压计返回至井口时再重新校对仪器读数，以检查仪器的误差。至此测定完毕，并记录各测点原始数据。2.2通风阻力解算方法(1)空气密度用风扇湿度计和精密气压计分别测定各测点的干、湿球温度与大气压力，按下式计算测点的空气密度。(2.1)式中：——空气的密度，kg/m3；——空气的绝对静压，KPa；——饱和水蒸汽的绝对分压，KPa；——空气的相对湿度，%；——空气的绝对温度，，K。(2)巷道断面积测点巷道断面积按下式计算：梯形、矩形巷道：(2.2a)三心拱、半圆拱巷道：(2.2b)式中：SL——巷道断面积，m2；BL——巷道宽度或腰线长度，m；HL——巷道全高，m。(3)测点风速测点的风速由测出的表速按下式换算成真实风速：(2.3)式中：——测点风速，m/s；——巷道断面积，m2；0.4——人体侧面积，m2；、——风表校正系数；——表速，m/min。(4)测点速压(2.4)(5)测点间风量的确定如图2.1所示，两测点间巷道通过的风量按如下原则确定：①两测点间巷道没有分岔(图A)，巷道通过的风量取两测点风量的平均值，即：(2.5a)②在风流分岔点前设置测点(图B)，则通过两测点间巷道的风量取后一测点的风量，即：(2.5b)③在风流分岔点后设置测点(图C)，则通过两测点间巷道的风量取前一测点的风量，即：(2.5c)112图A12图B12图C图2.1风量测定测点布置图(6)两测点间巷道的阻力计算用精密气压计逐点测定时，两测点间的静压差按下式计算：Pa(2.6a)两测点的位压差：Pa(2.6b)两测点的速压差：Pa(2.6c)则两测点间的通风阻力为：Pa(2.6d)式中：、——分别为精密气压计在巷道前后测点、上的读数，mmH2O；、——井下气压计读取、时，基点气压计读数，mmH2O；、——测点、的标高，m；、——测点、的空气密度，kg/m3。(7)巷道风阻、百米风阻计算①巷道风阻kg/m7(2.7)②百米风阻kg/m7(2.8)式中：——测点、间巷道的长度，m。(8)矿井通风总阻力的计算矿井通风总阻力为进风井口到扇风机吸风口之间各巷道所测的通风阻力之和，即：Pa(2.9)式中：——从进风井口到扇风机吸风口之间所测巷道的个数。(9)矿井自然风压的计算矿井自然风压按照测定路线从进风井到回风井全部测点的位压之和，可按下式计算：Pa(2.10)2.3测定路线选择及测点布置本次矿井南翼通风阻力测定，根据测定的要求和目的，结合该矿的生产布局和通风系统的现状，选择了一条风流路线长、风量大，且包含采煤工作面，能反映通风系统特征的路线作为主测路线，同时选择了两条辅测路线和一条补测路线。主测路线(11309工作面通风系统)：副井口—副井底—南翼轨道大巷—南翼轨道下山—南翼-740水平轨道大巷—11309轨道顺槽—11309工作面—11309运输顺槽—南翼-740水平二部胶带输送机大巷—南翼-740水平胶带输送机巷—南翼胶带输送机下山—南翼回风大巷—风井—地面风硐。辅测路线1：南翼辅助进风大巷—南翼进风下山—九采辅助胶带输送机巷—南翼-740辅助运输巷—南翼-740辅助运输延伸巷辅测路线2：南翼-740水平回风大巷—南翼回风下山—南翼回风大巷补测路线：南翼-740轨道延伸巷—十一采区西部轨道巷—十采区第二探煤巷—十采区第一探煤巷各测定路线及测点位置如图2.2~2.5所示。图2.2主测路线测点布置示意图图2.3辅测路线1测点布置示意图图2.4辅测路线2测点布置示意图图2.5补测路线测点布置示意图2.4阻力解算对济宁二号煤矿通风阻力测定的原始数据进行整理后，利用通风阻力解算软件进行解算。此次阻力测定的原始数据记录表和阻力解算结果汇总表如表2.2～2.9所示。南翼采区通风系统优化与通防保障技术研究阶段性究报告表2.211309工作面阻力测定原始数据记录表序号测点测点位置支护形式断面形状绝对压力HPa基点压力Pa干温℃湿温℃全高m宽度m面积m2有效面积m2周长m风速m/s风量m3/s测点间距m标高m11副井口0028.521.30003822副井底6929712822.454.254.228.27033.057749165.73593-55533南翼轨道大巷锚喷三心拱69106827.223.445.4418.584618.2846067216.55422.8922752.884012131-555.144南翼轨道大巷锚喷三心拱68666427233.93619.717219.417217.05125.340626103.7175-554.655南翼轨道大巷锚喷三心拱71746227.623.43.96517.117516.817515.88735.90410899.292335539-58816南翼轨道大巷锚喷三心拱71225927.8243.96517.117516.817515.88735.94319799.949723312-587.577南翼轨道大巷锚喷三心拱70205427.624.24.055.0517.716117.4160817516.16276.005188104.58685425-585.487‘南翼轨道大巷锚喷三心拱70034827.224.23.874.9116.414916.1149008715.55794.94260179.649525100-584.898南翼轨道大巷锚喷三心拱69574427.424.23.874.9116.414916.1149008715.55794.94260179.649525222-584.4109南翼轨道下山锚喷三心拱69164527.624.43.374.4412.847512.8475307213.76395.50516670.727789299-583.91110南翼轨道下山锚喷三心拱86954028.425.24.265.2619.438919.4388665216.93043.93460176.4841781166-739.11212南翼-740水平轨道大巷锚喷三心拱87013527.625.43.674.8715.328115.3280766315.0342.19227533.603354229-740.21313南翼-740水平轨道大巷锚喷三心拱86853926.625.245.1317.696217.6961966316.15373.21332256.863586151-739.91414南翼-740水平轨道大巷锚喷三心拱8675362825.64.125.1218.281618.2815948816.41873.3357660.983009279-7401515南翼-740水平轨道大巷锚喷三心拱86433427.625.24.2518.317518.317516.43482.32917742.664698328-738.1表2.211309工作面阻力测定原始数据记录表(续)序号测点测点位置支护形式断面形状绝对压力HPa基点压力Pa干温℃湿温℃全高m宽度m面积m2有效面积m2周长m风速m/s风量m3/s测点间距m标高m1616南翼-740水平轨道大巷锚喷三心拱86153228.226.23.965.1217.462417.4623948816.04662.08922836.482925333-737.21717南翼-740水平轨道大巷锚喷三心拱85822927.8263.965.1217.462417.4623948816.04662.08922836.482925295-736.3181811309轨顺上口锚喷矩形8553252826.23.134.5314.178914.178915.321.16315416.492244192-734.91918‘11309进风隅角上风侧151m锚喷矩形88942129.828.6341212141.53036318.3643591192-765.62019’11309回风隅角锚喷矩形83602231.230.8341212141.53036318.364359216.3-722.3211911309皮带顺槽上口10m锚喷矩形8600-933.2332.84.612.8812.8814.81.42580418.3643591193-747.82220南翼-740水平胶带输送机大巷锚喷三心拱8601-2232.831.63.945.0517.160617.1605817515.90732.67416945.890302137-751.292321南翼-740水平胶带输送机大巷锚喷三心拱8306-2832.431.63.44.813.847813.84780814.28972.23128830.898451210-728.92422南翼-740水平胶带输送机大巷锚喷三心拱8021-2732.431.84.65.522.054222.05417518.03341.02928922.70012281-710.6522524南翼-740水平胶带输送机大巷锚喷三心拱8468-383231.23.564.7914.590514.5904980714.66781.5916723.223264388-737.6832624’南翼-740水平胶带输送机大巷锚喷三心拱8418-3831.630.43.734.8315.512713.5127090315.12430.97058613.11525134-737.52725南翼-740水平胶带输送机大巷锚喷三心拱8253-693130.43.364.4412.803112.8031307213.74011.58704720.319176454-739.082825'南翼-740水平胶带输送机大巷锚喷三心拱7992-7731.430.84.34.918.493718.49372716.51372.47831845.83333396-728.6942926南翼胶带输送机下山锚喷三心拱8069-9932.6323.044.7512.01912.0190437513.31273.81339345.833333196-740.33027’南翼胶带输送机下山锚喷三心拱8050-10033.232.23.044.7512.01912.0190437513.31273.38617440.69857106-740表2.211309工作面阻力测定原始数据记录表(续)序号测点测点位置支护形式断面形状绝对压力HPa基点压力Pa干温℃湿温℃全高m宽度m面积m2有效面积m2周长m风速m/s风量m3/s测点间距m标高m3127南翼胶带输送机下山锚喷三心拱8023-10332.431.43.044.7512.01912.0190437513.31273.98382847.88180398-739.63228南翼胶带输送机下山锚喷三心拱6901-10431.831.23.444.0812.24912.2490412813.43955.92270672.5474741104-657.83330南翼胶带输送机大巷锚喷半圆拱5705-13032.8322.915.2512.3212.3200437513.47847.69053294.747692801-585.33431南翼胶带输送机大巷锚喷半圆拱5500-13632.631.83.515.3715.754515.7545006315.24175.64853388.989824206-576.43532南翼胶带输送机大巷锚喷半圆拱5340-15132.631.83.875.3817.714917.7148658816.16225.28945593.701981215-578.33634南翼胶带输送机大巷锚喷三心拱5400-1543231.23.55.315.535915.53594315.13565.46278684.869536376-592.83735南翼胶带输送机大巷锚喷三心拱4776-15731.831.417.217.215.92563.16957454.516667590-552.73836南翼胶带输送机大巷锚喷三心拱4300-14532.431.63.75.0916.053116.0530608715.38544.61448274.076562418-523.573937风机底锚喷三心拱4102-14729.8294.385.8221.857121.8570914817.952610.40672227.46054187-5244038风硐浇筑矩形-2931-14932324.25212118.413.57619285.152438

表2.311309工作面通风系统阻力解算表序号测点测点位置支护形式断面形状风速m/s风量m3/s测点间距m静压差Pa位压差Pa动压差Pa阻力Pa风阻kg/m7百米风阻kg/m7阻力系数kg/m311副井口00022副井底3.057749165.73593-68587181.044921-5.879921317.1650.011547370.001947280.10967188133南翼轨道大巷锚喷三心拱2.8922752.884012131161.2336647630.610152217.8438170.006380270.0048704340.01798525744南翼轨道大巷锚喷三心拱5.340626103.717540-6.17487124-12.7054421.119690.001963950.0011222560.00481834655南翼轨道大巷锚喷三心拱5.90410899.292335539-310412.4287935-3.97869998.4500950.009985840.0018526610.00554662566南翼轨道大巷锚喷三心拱5.94319799.94972331249-6.16853367-0.2663342.5651360.00426080.001365640.00408854977南翼轨道大巷锚喷三心拱6.005188104.5868542597-25.8966351-0.47218370.6311820.006457170.0015193350.00496580687‘南翼轨道大巷锚喷三心拱4.94260179.64952510011-7.402649557.309342810.9066930.00171920.0017192010.00462444198南翼轨道大巷锚喷三心拱4.94260179.64952522242-4.934223130.016245937.0820230.005845170.0026329590.007082338109南翼轨道下山锚喷三心拱5.50516670.72778929942-6.16218562-3.6827332.1550850.006427910.0021498010.0033121981110南翼轨道下山锚喷三心拱3.93460176.4841781166-17841917.173259.2663542142.43960.024349360.0020882810.0090601441212南翼-740水平轨道大巷锚喷三心拱2.19227533.603354229-1113.639393886.73950399.37889770.00830590.0036270290.0086883841313南翼-740水平轨道大巷锚喷三心拱3.21332256.86358615120-3.72995338-3.51695512.7530920.003944090.0026119810.0089606321414南翼-740水平轨道大巷锚喷三心拱3.3357660.98300927971.242465991-0.4766317.76583510.002088190.0007484560.0027852891515南翼-740水平轨道大巷锚喷三心拱2.32917742.66469832830-23.56826173.601513210.0332510.005511940.0016804690.0062844141616南翼-740水平轨道大巷锚喷三心拱2.08922836.48292533326-11.15575510.679314115.5235590.011663050.0035024160.011622406表2.311309工作面通风系统阻力解算表(续)序号测点测点位置支护形式断面形状风速m/s风量m3/s测点间距m静压差Pa位压差Pa动压差Pa阻力Pa风阻kg/m7百米风阻kg/m7阻力系数kg/m31717南翼-740水平轨道大巷锚喷三心拱2.08922836.48292529530-11.1481742-0.00412718.8476980.014160510.0048001740.015928882181811309轨顺上口锚喷矩形1.16315416.49224419225-17.34612721.90575549.55962820.035146450.0183054450.0340603521918‘11309进风隅角上风侧151m锚喷矩形1.53036318.3643591192-345378.9210383-0.61506133.3059770.098757630.0082850360.0102261012019’11309回风隅角锚喷矩形1.53036318.364359216.3535-530.5865170.01138144.42486440.013120440.0060658530.007486996211911309皮带顺槽上口10m锚喷矩形1.42580418.3643591193-271309.99237330.202768439.1951420.116219950.0097418240.0140645592220南翼-740水平胶带输送机大巷锚喷三心拱2.67416945.890302137-1442.29743381-3.17076325.1266710.011931450.0087090860.0276675912321南翼-740水平胶带输送机大巷锚喷三心拱2.23128830.898451210289-271.6913571.343607518.6522510.0195370.0093033320.0172886032422南翼-740水平胶带输送机大巷锚喷三心拱1.02928922.70012281286-221.339132.427659567.0885290.13019430.0463324910.2756014282524南翼-740水平胶带输送机大巷锚喷三心拱1.5916723.223264388-458328.2818071-0.917426-130.6356-0.2422228-0.062428569-0.132198782624’南翼-740水平胶带输送机大巷锚喷三心拱0.97058613.1152513450-2.228214250.987016948.7588030.283465310.2115412730.3451018932725南翼-740水平胶带输送机大巷锚喷三心拱1.58704720.31917645413419.27166039-0.983348152.288310.368853910.0812453540.124095994表2.311309工作面通风系统阻力解算表(续)序号测点测点位置支护形式断面形状风速m/s风量m3/s测点间距m静压差Pa位压差Pa动压差Pa阻力Pa风阻kg/m7百米风阻kg/m7阻力系数kg/m32825'南翼-740水平胶带输送机大巷锚喷三心拱2.47831845.83333396253-126.661752-2.248276124.089970.059070930.0615322180.2356852752926南翼胶带输送机下山锚喷三心拱3.81339345.833333196-99141.0370207-5.17708736.8599340.017546550.008952320.0116755993027’南翼胶带输送机下山锚喷三心拱3.38617440.6985710618-3.633380911.915911916.2825310.009830230.0092738010.0120948733127南翼胶带输送机下山锚喷三心拱3.98382847.8818039824-4.84730515-2.7491916.4035050.007154770.0073007860.0095216713228南翼胶带输送机下山锚喷三心拱5.92270672.54747411041121-990.849794-11.80889118.341310.022484940.002036680.0027851383330南翼胶带输送机大巷锚喷半圆拱7.69053294.7476928011170-872.162671-14.48463283.35270.031563860.0039405560.0054670993431南翼胶带输送机大巷锚喷半圆拱5.64853388.989824206199-106.54533816.63173109.086390.013774950.0066868670.0171554873532南翼胶带输送机大巷锚喷半圆拱5.28945593.70198121514522.739207652.411895170.15110.019379260.009013610.0310036063634南翼胶带输送机大巷锚喷三心拱5.46278684.869536376-63173.7952948-1.205625109.589670.015214790.0040464870.0100251513735南翼胶带输送机大巷锚喷三心拱3.16957454.516667590621-480.68611512.149786152.463670.051298870.0086947230.0277808593836南翼胶带输送机大巷锚喷三心拱4.61448274.076562418488-347.965414-6.821271133.213310.02427650.0058077740.015616123937风机底锚喷三心拱10.40672227.460541871965.153258782-53.5959147.557360.002851990.0015251310.0088706784038风硐浇筑矩形13.57619285.15247031-6599.050985-41.02709484390.92192030.0048094520.0009178340.0046196表2.4辅测路线1测定原始数据记录表序号测点测点位置支护形式断面形状绝对压力HPa基点压力Pa干温℃湿温℃全高m宽度m面积m2有效面积m2周长m风速m/s风量m3/s测点间距m标高m13南翼辅助进风大巷锚喷三心拱68859633.226.83.855.3520.220.217.25875.960396120.40-555.125南翼辅助进风大巷锚喷三心拱68839533.226.210.419.412.38364.2582.4567.7-554.636南翼辅助进风大巷锚喷三心拱72309333.226.43.13.710.410.412.38366.77564170.466667490.1-587.647南翼辅助进风大巷锚喷三心拱72059033.426.23.13.710.410.412.38366.52724467.883333280.6-58758南翼辅助进风大巷锚喷三心拱72698633.2253.63.9131313.84534.06538552.85132.3-59269南翼辅助进风大巷锚喷三心拱71628233.225.83.9516.817516.817515.74753.1425652.85408.5-585.3711’南翼进风下山锚喷矩形8897483525.93.564.214.95214.95215.525.34711179.951368.3-735.9811南翼进风下山锚喷矩形88524435262.694.214.95214.95213.785.28803379.06666720-732.65912南翼进风下山锚喷矩形8960862725.83.424.4115.082215.082215.664.05555361.166667380.9-7391013九采辅助胶带输送机巷锚喷矩形85588226.625.63.214.2313.578313.578314.882.59036335.17273287.3-7091113‘九采辅助胶带输送机巷锚喷矩形85467726.625.63.214.2313.578313.578314.882.59036335.17273215.6-708.8表2.4辅测路线1测定原始数据记录表(续)序号测点测点位置支护形式断面形状绝对压力HPa基点压力Pa干温℃湿温℃全高m宽度m面积m2有效面积m2周长m风速m/s风量m3/s测点间距m标高m1214九采辅助胶带输送机巷锚喷矩形85267626.425.63.044.2612.950412.950414.62.35734130.528515109.3-707.51315南翼-740辅助运输巷砌碹半圆拱84937526.625.83.314.1611.912711.9127091213.25371.87105822.289367158-705.41415‘南翼-740辅助运输巷砌碹半圆拱84777327263.575.1115.440915.2408716715.08920.81257412.38432950.6-704.31516南翼-740辅助运输巷砌碹半圆拱84757327.226.24.45.6221.33921.3389938817.73861.49243531.84706234-704.41616’南翼-740辅助运输巷砌碹半圆拱84767427.226.24.315.7221.142521.1425156817.65671.74857736.96931821.7-704.61717南翼-740辅助运输巷砌碹半圆拱85067327.126.44.155.0918.343618.3435608716.44651.82760933.524861129.1-7081818南翼-740辅助运输延伸巷锚喷矩形8808622726.24.295.423.16623.16619.381.26515229.308508647-732.11919南翼-740辅助运输延伸巷锚喷矩形87196226.8263.945.8623.088423.088419.61.00749623.261461126.3-726.52019'南翼-740辅助运输延伸巷锚喷矩形8739652726.22.895.5916.155116.155116.961.03035116.645421288.9-732表2.5辅测路线1通风系统阻力解算表序号测点测点位置支护形式断面形状风速m/s风量m3/s测点间距m静压差Pa位压差Pa动压差Pa阻力Pa风阻kg/m7百米风阻kg/m7阻力系数kg/m313南翼辅助进风大巷锚喷三心拱5.960396120.4025南翼辅助进风大巷锚喷三心拱4.2582.4567.71-6.0453151410.762575.71725490.000841020.0012422740.00732444736南翼辅助进风大巷锚喷三心拱6.77564170.466667490.1-349399.3545131-17.2171533.1373660.006673450.0013616510.00123685347南翼辅助进风大巷锚喷三心拱6.52724467.883333280.622-7.260879432.073782516.8129030.003648520.0013002560.00118108458南翼辅助进风大巷锚喷三心拱4.06538552.85132.3-6860.4961779616.0821838.57836060.003071240.0023214240.00368367869南翼辅助进风大巷锚喷三心拱3.1425652.85408.5103-81.08106784.110703826.0296360.009319190.0022813190.006890622711’南翼进风下山锚喷矩形5.34711179.951368.3-17691830.408523-11.714349.6942250.007774440.0005681820.001223753811南翼进风下山锚喷矩形5.28803379.0666672041-39.72001750.35659161.6365740.000261790.0013089370.003175173912南翼进风下山锚喷矩形4.05555361.166667380.9-6680.260009926.507024320.7670340.005550660.0014572490.0031925391013九采辅助胶带输送机巷锚喷矩形2.59036335.17273287.3398-399.4375126.29634774.85883540.003927530.001367050.0022999461113‘九采辅助胶带输送机巷锚喷矩形2.59036335.17273215.67-2.660648840.19234224.53169340.00366310.0016990240.0028584651214九采辅助胶带输送机巷锚喷矩形2.35734130.528515109.319-16.935020.7633922.8283720.003034770.0027765470.004130491表2.5辅测路线1通风系统阻力解算表(续)序号测点测点位置支护形式断面形状风速m/s风量m3/s测点间距m静压差Pa位压差Pa动压差Pa阻力Pa风阻kg/m7百米风阻kg/m7阻力系数kg/m31315南翼-740辅助运输巷砌碹半圆拱1.87105822.28936715832-27.34580131.37059656.02479520.012126820.00767520.0097900481415‘南翼-740辅助运输巷砌碹半圆拱0.81257412.38432950.614-14.30322321.88642421.58320110.010322650.0204004910.0478633291516南翼-740辅助运输巷砌碹半圆拱1.49243531.8470623421.29880432-1.0375912.26121290.002229480.0065572810.0359192611616’南翼-740辅助运输巷砌碹半圆拱1.74857736.96931821.702.596345419-0.5496892.04665680.001497480.0069008470.0369371031717南翼-740辅助运输巷砌碹半圆拱1.82760933.524861129.1-3144.15637674-0.18923812.9671380.011537460.0089368390.0335399051818南翼-740辅助运输延伸巷锚喷矩形1.26515229.308508647-313313.60928851.14996561.75925410.002048050.0003165460.0020306561919南翼-740辅助运输延伸巷锚喷矩形1.00749623.261461126.389-72.97573620.389467816.4137320.030334260.0240176220.1508187892019'南翼-740辅助运输延伸巷锚喷矩形1.03035116.645421288.9-1771.64442988-0.03052954.6139010.197112260.0682285420.169616928表2.6辅测路线2测定原始数据记录表序号测点测点位置支护形式断面形状绝对压力HPa基点压力Pa干温℃湿温℃全高m宽度m面积m2有效面积m2周长m风速m/s风量m3/s测点间距m标高m113南翼-740水平回风大巷锚喷矩形82848284-3029.828.44.24.820.1620.560.68390714.0611220-722.4214南翼-740水平回风大巷锚喷三心拱84478527-3030.4293.44.212.38722812.78721.83640723.482559128-736.5315南翼-740水平回风大巷锚喷矩形83428360-9029.628.62.84.813.4413.841.62978322.556192188.5-733.8416南翼-740水平回风大巷锚喷矩形82908274-1023129.62.94.813.9214.321.60964423.05009874.8-730.9517南翼-740水平回风大巷锚喷矩形80028002-12030.229.43.235.0216.214616.61463.8459263.898428300.1-714.1618南翼-740水平回风大巷锚喷矩形79207990-15030.6303.235.0216.214616.61463.8459263.89842889.8-711719南翼-740水平回风大巷锚喷矩形82208290-16332.230.33.54.8917.11517.5156.383101111.8000299.1-709.2820南翼-740水平回风大巷锚喷矩形81528232-18032.2313.65.118.3618.764.77551989.588732157.5-705.9921南翼-740水平回风大巷锚喷矩形83488348-19431.830.83.65.118.3618.764.77551989.588732515.3-729.71022南翼-740水平回风大巷锚喷矩形83608360-19931.830.83.65.118.3618.764.77551989.588732151.4-732.7

表2.6辅测路线2测定原始数据记录表(续)序号测点测点位置支护形式断面形状绝对压力HPa基点压力Pa干温℃湿温℃全高m宽度m面积m2有效面积m2周长m风速m/s风量m3/s测点间距m标高m1123南翼-740水平回风大巷锚喷三心拱83258325-20831.630.63.64.814.80780815.20783.59464554.66666795.7-732.651214九采辅助胶带输送机巷锚喷矩形85267626.425.63.044.2612.950412.950414.62.35734130.528515109.3-707.51315南翼-740辅助运输巷砌碹半圆拱84937526.625.83.314.1611.912711.9127091213.25371.87105822.289367158-705.41415‘南翼-740辅助运输巷砌碹半圆拱84777327263.575.1115.440915.2408716715.08920.81257412.38432950.6-704.31516南翼-740辅助运输巷砌碹半圆拱84757327.226.24.45.6221.33921.3389938817.73861.49243531.84706234-704.41616’南翼-740辅助运输巷砌碹半圆拱84767427.226.24.315.7221.142521.1425156817.65671.74857736.96931821.7-704.61717南翼-740辅助运输巷砌碹半圆拱85067327.126.44.155.0918.343618.3435608716.44651.82760933.524861129.1-7081818南翼-740辅助运输延伸巷锚喷矩形8808622726.24.295.423.16623.16619.381.26515229.308508647-732.11919南翼-740辅助运输延伸巷锚喷矩形87196226.8263.945.8623.088423.088419.61.00749623.261461126.3-726.52019'南翼-740辅助运输延伸巷锚喷矩形8739652726.22.895.5916.155116.155116.961.03035116.645421288.9-732表2.7辅测路线2通风系统阻力解算表序号测点测点位置支护形式断面形状风速m/s风量m3/s测点间距m静压差Pa位压差Pa动压差Pa阻力Pa风阻kg/m7百米风阻kg/m7阻力系数kg/m3113南翼-740水平回风大巷锚喷矩形0.68390714.0611220214南翼-740水平回风大巷锚喷三心拱1.83640723.482559128-163173.3784722-1.8207848.55768860.015519070.0121242720.018757139315南翼-740水平回风大巷锚喷矩形1.62978322.556192188.545-33.20858750.446116112.2375290.024052610.0127600030.022254379416南翼-740水平回风大巷锚喷矩形1.60964423.05009874.840-35.59958580.05010714.45052120.008376550.01119860.021353647517南翼-740水平回风大巷锚喷矩形3.8459263.898428300.1270-205.808971-7.63372456.5573040.013851870.0046157510.012830042618南翼-740水平回风大巷锚喷矩形3.8459263.89842889.852-38.2325141-0.11044813.6570380.003344850.0037247730.010353461719南翼-740水平回风大巷锚喷矩形6.383101111.8000299.1-313-22.1287768-15.95979-351.0886-0.0280888-0.028343877-0.090760677820南翼-740水平回风大巷锚喷矩形4.77551989.588732157.551-40.169693611.16873521.9990410.002740920.0017402690.006603371921南翼-740水平回风大巷锚喷矩形4.77551989.588732515.3-210289.9523034-0.04394379.908360.009956010.0019320810.0073311911022南翼-740水平回风大巷锚喷矩形4.77551989.588732151.4-1736.60693965-0.00130319.6056360.002442720.0016134230.0061220591123南翼-740水平回风大巷锚喷三心拱3.59464554.66666795.726-0.610397176.147117431.536720.010552890.0110270510.02624718表2.7辅测路线2通风系统阻力解算表(续)序号测点测点位置支护形式断面形状风速m/s风量m3/s测点间距m静压差Pa位压差Pa动压差Pa阻力Pa风阻kg/m7百米风阻kg/m7阻力系数kg/m31229南翼-740水平回风大巷锚喷三心拱4.45640868.71666754.5260.605839798-4.12823722.4776020.004760210.0087343240.0215178191330南翼回风下山锚喷三心拱3.87251961.533333257.1-3083.136397882.939441456.0758390.014809990.0057604020.0152915011431南翼回风下山锚喷三心拱7.313807112.1513.11169-957.767104-23.47581187.757080.014941190.0029119440.0070672331532'南翼回风下山锚喷三心拱6.572907102.65001168-834.6781516.4224118339.744260.032274340.0064548690.0163933571632南翼回风下山锚喷三心拱7.21459104.98333108.8157-133.595321-5.38153118.0231480.001635270.0015030070.0032059321717南翼-740辅助运输巷砌碹半圆拱1.82760933.524861129.1-3144.15637674-0.18923812.9671380.011537460.0089368390.0335399051818南翼-740辅助运输延伸巷锚喷矩形1.26515229.308508647-313313.60928851.14996561.75925410.002048050.0003165460.0020306561919南翼-740辅助运输延伸巷锚喷矩形1.00749623.261461126.389-72.97573620.389467816.4137320.030334260.0240176220.1508187892019'南翼-740辅助运输延伸巷锚喷矩形1.03035116.645421288.9-1771.64442988-0.03052954.6139010.197112260.0682285420.169616928表2.8补测路线测定原始数据记录表序号测点测点位置支护形式断面形状绝对压力HPa基点压力Pa干温℃湿温℃全高m宽度m面积m2有效面积m2周长m风速m/s风量m3/s测点间距m标高m11南翼-740轨道延伸巷锚喷三心拱86873327.625.63.965.1217.462417.0623948816.04662.13820736.4829250-736.322南翼-740轨道延伸巷锚喷三心拱86843427.2253.554.6714.238413.8384050314.48981.13065215.646417123.5-735.8533南翼-740轨道延伸巷锚喷三心拱8673.33528.225.83.925.1317.285816.8857966315.96530.60239710.171949257.2-734.944南翼-740轨道延伸巷锚喷三心拱86623427.225.82.884.4410.671910.2719307212.54451.17234812.042273196.6-734.255南翼-740轨道延伸巷锚喷三心拱86533427.2263.14.211.12729.92722812.80930.9238839.1716002150.2-733.566十一采区西部轨道巷锚喷三心拱8631352825.445.318.185916.98594316.37571.26130921.424523368.1-732.377十一采区西部轨道巷锚喷三心拱86293728.426.83.745.4317.144515.4444702315.89990.6334769.783705485-73288十采区第二探煤巷锚喷矩形86123728.627.23.24.514.41315.41.60935220.92157478-730.999十采区第二探煤巷锚喷矩形85774828.627.43.054.513.72513.32515.11.2886517.171257195-727.31010十采区第一探煤巷锚喷矩形77753830.8303.7414.811.115.41.55465317.256649797-663.51111十采区第一探煤巷锚喷矩形85531230.229.43.53414.514.115.061.59219922.45658-731.91212十采区第一探煤巷锚喷矩形8610130.229.43.53414.510.87515.062.06436822.45461-739.5表2.9补测路线通风系统阻力解算表序号测点测点位置支护形式断面形状风速m/s风量m3/s测点间距m静压差Pa位压差Pa动压差Pa阻力Pa风阻kg/m7百米风阻kg/m7阻力系数kg/m311南翼-740轨道延伸巷锚喷三心拱2.13820736.482925022南翼-740轨道延伸巷锚喷三心拱1.13065215.646417123.54-5.602444842.08945470.48700990.001989340.0016107980.0029460333南翼-740轨道延伸巷锚喷三心拱0.60239710.171949257.211.7-11.81460390.58274680.46814290.004524490.0017591350.0053050344南翼-740轨道延伸巷锚喷三心拱1.17234812.042273196.610.3-8.70332598-0.643350.95332450.006573910.00334380.00288897655南翼-740轨道延伸巷锚喷三心拱0.9238839.1716002150.29-8.714251960.3312040.61695210.007334340.0048830510.00372949966十一采区西部轨道巷锚喷三心拱1.26130921.424523368.123-14.9203678-0.4662717.61336130.016586480.004505970.01348522477十一采区西部轨道巷锚喷三心拱0.6334769.7837054854-3.721856860.75457291.0327160.010788830.0126927360.02940905388十采区第二探煤巷锚喷矩形1.60935220.9215747817-13.6241826-1.3823411.99347690.004554310.0058388580.00832985199十采区第二探煤巷锚喷矩形1.288651744.55429310.58782792.03353480.00689680.0035368190.005541631010十采区第一探煤巷锚喷矩形1.55465317.256649797792-784.247602-0.4578127.29458580.024495580.0030734730.0027294661111十采区第一探煤巷锚喷矩形1.59219922.45658-804838.0847131-0.08392834.0007850.067461540.0102525140.0190837071212十采区第一探煤巷锚喷矩形2.06436822.45461-6893.4361972-1.08355624.3526410.048318490.0104812350.008951077南翼采区通风系统优化与通防保障技术研究阶段性报告2.5通风阻力测定结果分析及评价2.5.1测定误差分析(1)矿井通风阻力测定结果检验为判定测定工作的有效性和测定结果的可靠性，必须对测定结果进行误差检验。通风系统阻力测定误差是由风机房水柱计读数计算出的通风系统理论通风阻力与实测的通风系统通风阻力比较得出的相对误差。矿井通风系统通风阻力的理论阻力值可按下式计算：Pa(2.11)式中：——矿井通风阻力的理论值，Pa；——扇风机房“U”型水柱计读数，Pa；——风机风硐内测压断面的速压，Pa；——该系统的自然风压，Pa。则矿井通风系统的测定误差按下式计算：式中：——相对误差，%，一般要求小于等于5%。——矿井通风阻力的实测值，Pa。通风阻力测定期间，风机房水柱计静压读数平均为2600Pa，实测通风系统自然风压为，按上式2.11可计算出矿井各系统实际通风阻力及测定误差如表2.10所示。济宁二号煤矿通风系统的通风阻力测定结果检验如表2.10所示。表2.10济宁二号煤矿通风系统通风阻力测定结果检验表风机房水柱计读数Pa风硐断面速压Pa自然风压Pa理论通风阻力Pa实测通风阻力Pa相对误差%主测路线2600107.58266.322973.92940.741.1(2)误差原因分析本次测定采用的是精度及稳定性较高的精密气压计，但在测定过程中，由于受测定条件的限制以及测定仪器、仪表及人为等种种因素的影响，测定中仍存在着一定的误差，其主要原因为：①巷道的断面不规则，局部地点风流不稳定，造成仪器读数变化较大，难以读得准确的数值；②有些测点标高不准确，致使个别巷道的阻力计算值“失真”；③井下生产的干扰，也对测点的风流参数产生影响。从表2.10的测定检验结果来看，测定误差小于5%，表明本次通风阻力测定结果满足矿井通风阻力测定和通风系统分析的精度要求。2.5.2矿井通风阻力分布根据矿井各段风路在通风系统中位置和作用的不同，将各段风路分为进风段、用风段和回风段。各条路线的通风系统阻力分布如表2.11所示，各条路线百米风阻的分布情况见图2.6～2.9。表2.11济宁二号煤矿通风系统阻力分布表区段测点区间长度/m占总长度百分比/%通风阻力/Pa占总阻力百分比/%主测路线进风段1-9279618.78647.9222.03用风段9-28877858.94796.4827.08回风段28-38331722.281496.3450.89合计148911002940.74100区段测点区间长度/m占总长度百分比/%通风阻力/Pa占总阻力百分比/%辅测路线1进风段3-11’2747.552.67139.9751.41用风段11’-19’2468.747.33132.2948.59合计5216.2100272.26100区段测点区间长度/m占总长度百分比/%通风阻力/Pa占总阻力百分比/%辅测路线2用风段13-291854.734.64-80.10-5.51回风段29-393499.165.361533.52105.51合计5353.81001453.42100

表2.11济宁二号煤矿通风系统阻力分布表（续）区段测点区间长度/m占总长度百分比/%通风阻力/Pa占总阻力百分比/%补测路线十采区进风段1-91453.643.1415.218.8十采区回风段9-12191656.8665.6581.2合计3369.610080.85100图2.6主测路线百米风阻分布图图2.7辅测路线1百米风阻分布图图2.8辅测路线2百米风阻分布图图2.9补测路线百米风阻分布图通过表2.2～2.11和图2.6~2.9可以看出：(1)主测路线的通风阻力为2940.74Pa，测定误差小于5%，测定结果满足矿井通风阻力测定和通风系统分析的精度要求；(2)主测路线回风段阻力值及所占比重偏高，其中回风段距离占总距离的22.28%，而阻力值却达到总阻力的50.89%左右，主要原因是部分回风巷道段杂物堆积现象严重，有效断面小，且回风巷道风量过于集中；(3)主测路线用风段和回风段的百米风阻值偏高，主要是由于巷道有效通风断面小，部分巷道杂物堆积严重，应注意及时清理巷道中的堆积杂物，尽量避免巷道断面的突变，加强对巷道断面的维护；(4)辅测路线1的通风阻力分别为272.26Pa，其中进风段距离、用风段距离分别占总距离的52.67%、47.33%，阻力值各段分别占总阻力的51.41%、48.59%，用风段阻力略高一些，主要原因是部分用风段巷道杂物堆积现象严重，使得有效断面降低，增大了该段的通风阻力；(5)辅测路线2的通风阻力为1453.42Pa，该段由于辅助通风机的作用，克服了部分阻力的作用，一定程度上缓解了南翼通风的困难状况；(6)补测路线的通风阻力为80.85Pa，其中十采区进风段距离、十采区用风段距离分别占总距离的43.14%、56.86%，阻力值各段分别占总阻力的18.8%、81.2%，十采区用风段百米风阻值偏高，主要是由于巷道有效通风断面小，部分巷道杂物堆积严重。2.6矿井通风改造技术措施2.6.1降低矿井通风阻力措施根据现场实地考察以及阻力测定结果分析可知，济二煤矿南翼通风系统中存在局部阻力增大的情况，为尽可能消除局部阻力增大的现象，根据实际情况提出降阻措施：(1)清理堆积杂物严重巷道①南翼-740水平二部胶带输送机巷与11309轨顺交点处上风侧10m处施工物料等杂物堆积严重；②11308轨顺密闭处施工物料等杂物堆积达3m2；③-740水平胶带运输巷与-740水平回风巷2#联络巷下风侧20m处，胶带占巷道面积约2m2；南翼辅运与辅扇联络巷上风侧50m处有0.2m2碎石；④11309运顺转载点施工物料等杂物堆积严重；⑤-740轨回4#联络巷下风侧10m处有皮带0.6m2、管道0.3m2，其下风侧30m皮带机头有效面积仅占巷道断面一半；⑥-740轨回4#联络巷下风侧85m处施工物料等杂物堆积严重，巷道有效面积占巷道断面