回转窑耐火砖尺寸讨论稿.doc

ICS 备案号：GB中 华 人 民 共 和 国 国 家 标 准 GB/T -代替GB/T 17912-1999 耐火砖形状尺寸第2部分：回转窑用砖Dimensions of refractory bricks -Part 2：Specification for bricks for use in rotary kilns（讨论稿） 200 -发布 200 -实施中华人民共和国国家国家质量监督检验检疫总局 发 布中 国 国 家 标 准 化 管 理 委 员 会GB/T - 前 言本标准非等效采用了国际标准ISO 5417: 1986回转窑用耐火砖尺寸，本标准代替GB/T 17912-1999回转窑用耐火砖形状尺寸。本次修订与原标准相比主要变化如下：明确并扩大本标准适用范围到水泥回转窑、冶金石灰及轻烧白云石回转窑、耐火原料回转窑、含铁球团回转窑及有色冶金回转窑等；完善了等中间尺寸75mm回转窑用砖；增加了等大端尺寸100mm回转窑用砖；增加了回转窑专用锁砖；采用了等楔差尺寸回转窑用砖及其双楔形砖砖环；规定了本标准回转窑用砖及窑衬配砌方案设计计算，并设置为附录A。本标准的附录A为规范性附录。本标准由全国耐火材料标准化技术委员会归口。本标准起草单位：武汉钢铁（集团）公司、中国建筑材料科学研究院及冶金工业信息标准研究院。本标准参与起草单位：武汉威林炉衬材料有限公司。本标准起草人： 本标准所代替标准的历次版本发布情况为：-GB/T 17912-1999GB/T -1 范围GB/T 2992的本部分规定了回转窑用砖的术语和定义、尺寸砖号、尺寸规格、尺寸、尺寸特征及窑衬配砌方案设计计算。 本标准适用于水泥回转窑、活性石灰回转窑、耐火原料回转窑及有色冶金回转窑等回转窑筒体工作衬。2 术语和定义本标准采用下列术语和定义。2.1回转窑用砖 bricks for use in rotary kilns; bricks for rotary kilns指回转窑用厚楔形砖，即回转窑筒体专用的砖是大小端距离A设计在长度上、大小端尺寸C/D设计在厚度上的楔形砖，见图1。图1 回转窑用砖2.2等大端尺寸回转窑用砖 bricks for use in rotary kilns with constant backface dimensions；bricks for rotary kilns with constant backface dimensions大小端尺寸C都相等的回转窑用砖。2.3等中间尺寸回转窑用砖 bricks for use in rotary kilns with constant median taper dimensions；bricks for rotary kilns with constant median taper dimensions大小端平均尺寸即中间尺寸P=(C+D)/2都相等的回转窑用砖。2.4等楔差尺寸回转窑用砖 bricks for use in rotary kiln with constant taper dimensions；bricks for rotary kiln with constant taper dimensions楔差CD都相等的回转窑用砖。2.5 回转窑专用锁砖 special closure bricks for use in rotary kilns；special closure bricks for rotary kilns回转窑砖衬砌筑中最后封闭砖环锁缝的楔形砖。3 尺寸砖号及尺寸规格 3.1尺寸砖号表示法回转窑用砖的尺寸砖号由字母和数字组成：末两位数表示该砖大小端距离A的厘米数，其前的数字表示该砖标称外直径的米数；数字前的字母A、B、C、D分别表示等大端尺寸103mm、等中间尺寸71.5mm、等中间尺寸75mm、等大端尺寸100mm；字母S表示专用锁砖，CS表示等中间尺寸75mm系列的专用锁砖，DS表示等大端尺寸100mm系列的专用锁砖。3.2尺寸规格表示法回转窑用砖的尺寸规格（mm）以A(C/D)B表示。4 砖的尺寸及尺寸特征4.1 等大端尺寸103mm回转窑用砖的尺寸及尺寸特征见表1。4.2 等中间尺寸71.5mm回转窑用砖的尺寸及尺寸特征见表2。4.3 等中间尺寸75mm回转窑用砖的尺寸及尺寸特征见表3。4.4 等大端尺寸100mm回转窑用砖的尺寸及尺寸特征见表4。4.5 回转窑专用锁砖的尺寸及尺寸特征见表5。表1 等大端尺寸103mm回转窑用砖砖号尺 寸 mm单位楔差外直径（mm）每环极限砖数，块体积AC/DB1 mm2 mmA216160103/86.01980.10631957.61976.559.1362993.8A316103/92.00.06883025.53054.591.3923088.8A416103/94.50.05313915.33952.9118.2723128.4A516103/96.50.04065120.05169.2154.6633160.1A716103/98.30.02947080.97148.9213.8963188.6A218180103/84.01980.10561970.51989.559.5253332.3A318103/90.50.06942995.23024.090.4783448.2A418103/93.50.05283941.13978.9119.0503501.6A518103/95.50.04174992.05040.0150.7963537.3A618103/97.00.03336240.06300.0188.4963564.0A718103/97.70.02947064.27132.1213.3913576.5A220200103/82.01980.10501981.02000.059.8403663.0A320103/89.00.07002971.43000.089.7603801.6A420103/92.50.05253961.94000.0119.6803870.9A520103/94.70.04155012.05060.2151.4023914.5A620103/96.20.03406117.66176.5184.8003944.2A720103/97.00.03006933.37000.0209.4403960.0A820103/97.80.02608000.08076.9241.6623975.8A322220103/88.01980.06823050.73080.092.1544160.0A422103/91.50.05233979.14017.4120.2004236.2A522103/94.00.04095084.45133.3153.5894290.7A622103/95.50.03416101.36160.0184.3074323.3A722103/96.50.02957040.07107.7212.6624345.1A822103/97.30.02598028.18105.3242.5094362.5A425250103/90.01980.05204000.04038.5120.8314776.8A525103/92.70.04125048.55097.1152.5044843.6A625103/94.50.03406117.66176.5184.8004888.1A725103/95.50.03006933.37000.0209.4404912.9A825103/96.50.02608000.08076.9241.6614937.6注：1、表示砌缝（辐射缝）厚度，mm。2、本表用砖尺寸取自ISO5417:1986。尺寸特征为本标准计算值。3、本表适用于非碱性砖。表2 等中间尺寸71.5mm回转窑用砖砖号尺 寸mm单位楔差外直径（mm）每环极限砖数，块体积AC/DB1 mm2 mmB21616078.0/65.01980.08131944.61969.277.3322265.1B41675.0/68.00.04383474.33520.0143.616B21818078.0/65.01980.07222187.72215.486.9982548.3B31876.5/66.50.05562790.02826.0113.098B41875.0/68.00.03893908.63960.0161.568B51874.5/68.50.03334530.04590.0188.496B61874.0/69.00.02785400.05472.0226.195B22020078.0/65.01980.06502430.82461.596.6652831.4B32076.5/66.50.05003100.03140.0125.664B42075.0/68.00.03504342.94400.0179.520B52074.5/68.50.03005033.35100.0209.440B62074.0/69.00.02506000.06080.0251.328B22222078.0/65.01980.05912673.82707.7106.3313114.5B32276.5/66.50.04553410.03454.0138.230B42275.0/68.00.03184777.14840.0197.472B52274.5/68.50.02735536.75610.0230.384B62274.0/69.00.02276600.06688.0276.461B32525078.0/65.01980.05203038.53076.9120.8313539.3B42576.5/66.50.04003875.03925.0157.080B52575.0/68.00.02805428.65500.0224.400B62574.5/68.50.02406291.76375.0261.800B72574.0/69.00.02007500.07600.0314.160注：1、表示砌缝（辐射缝）厚度，mm。2、本表用砖尺寸取自ISO5417:1986。尺寸特征为本标准计算值。3、本表适用于非碱性砖。表3 等中间尺寸75mm回转窑用砖砖号尺 寸mm单位楔差外直径（mm）每环极限砖数，块体积AC/DB1 mm2 mmC21616082.5/67.51980.09381781.31802.767.021 2376.0C31680.0/70.00.06252592.02624.0100.531 C41678.8/71.30.04693402.73445.3134.042 C51677.5/72.50.03135024.05088.0201.062 C21818082.5/67.51980.08332004.02028.075.398 2673.0C31880.0/70.00.05562916.02952.0113.098 C41878.8/71.30.04173828.03876.0150.797 C61877.5/72.50.02785652.05724.0226.195 C22020082.5/67.51980.07502226.72253.383.776 2970.0C32080.0/70.00.05003240.03280.0125.664 C42078.8/71.30.03754253.34306.7167.552 C62077.5/72.50.02506280.06360.0251.328 C22222082.5/67.51980.06822449.32478.792.154 3267.0C42280.0/70.00.04553564.03608.0138.230 C52278.8/71.30.03414678.74737.3184.307 C72277.5/72.50.02276908.06996.0276.461 C32525082.5/67.51980.06002783.32816.7104.720 3712.5C42580.0/70.00.04004050.04100.0157.080 C52578.8/71.30.03005316.75383.3209.440 C82577.5/72.50.02007850.07950.0314.160 注：1、C416、C418、C420、C522、C525的大小端尺寸（mm）C/D为78.8/71.3，其设计尺寸为78.75/71.25。上述砖号外直径及体积计算中采用设计尺寸78.75/71.25。2、表示砌缝（辐射缝）厚度，mm。3、本表适用于非碱性砖。表4 等大端尺寸100mm回转窑用砖砖号尺 寸mm单位楔差外直径每环极限块数体积AC/DB1 mm2 mmD216160100/85.01980.09382154.72176.067.021 2930.4D316100/90.00.06253232.03264.0100.531 3009.6D416100/92.50.04694309.34352.0134.042 3049.2D716100/95.00.03136464.06528.0201.062 3088.8D218180100/85.01980.08332424.02448.075.398 3296.7D418100/90.00.05563636.03672.0113.098 3385.8D518100/92.50.04174848.04896.0150.797 3430.4D718100/95.00.02787272.07344.0226.195 3474.9D320200100/85.01980.07502693.32720.083.776 3663.0D420100/90.00.05004040.04080.0125.664 3762.0D520100/92.50.03755386.75440.0167.552 3811.5D820100/95.00.02508080.08160.0251.328 3861.0D322220100/85.01980.06822962.72992.092.154 4029.3D422100/90.00.04554444.04488.0138.230 4138.2D622100/92.50.03415925.35984.0184.307 4192.7D922100/95.00.02278888.08976.0276.461 4247.1D325250100/85.01980.06003366.73400.0104.720 4578.8D525100/90.00.04005050.05100.0157.080 4702.5D725100/92.50.03006733.36800.0209.440 4764.4D1025100/95.00.020010100.010200.0314.160 4826.3注：1、表示砌缝（辐射缝）厚度，mm。2、本表适用于非碱性砖。表5 回转窑用调节锁砖砖号尺 寸mm单位楔差外直径每环极限块数体积AC/DB1 mm2 mmDS31616089.5/79.81980.0625 2905.6 2937.6 100.531 2686.5 DS516120.4/112.90.0469 5179.7 5222.4 134.042 3695.5 DS816120.4/115.40.0313 7769.6 7833.6 201.062 3735.1 DS31818089.5/79.81980.0556 3268.8 3304.8 113.098 3022.3 DS618120.4/112.90.0417 5827.2 5875.2 150.797 4157.4 DS918120.4/115.40.0278 8740.8 8812.8 226.195 4202.0 DS42020089.5/79.81980.0500 3632.0 3672.0 125.664 3358.1 DS720120.4/112.90.0375 6474.7 6528.0 167.552 4619.3 DS1020120.4/115.40.0250 9712.0 9792.0 251.328 4668.8 DS42222089.5/79.81980.0455 3995.2 4039.2 138.230 3693.9 DS722120.4/112.90.0341 7122.1 7180.8 184.307 5081.3 DS1022120.4/115.40.0227 10683.2 10771.2 276.461 5135.7 DS52525089.5/79.81980.0400 4540.0 4590.0 157.080 4197.6 DS825120.4/112.90.0300 8093.3 8160.0 209.440 5774.2 DS1225120.4/115.40.0200 12140.0 12240.0 314.160 5836.1 CS21616071.8/61.81980.0625 2329.6 2361.6 100.531 2116.2 CS516119.1/111.60.0469 5125.3 5168.0 134.042 3654.3 CS716104.0/99.00.0313 6720.0 6784.0 201.062 3215.5 CS31818071.8/61.81980.0556 2620.8 2656.8 113.098 2380.8 CS618119.1/111.60.0417 5766.0 5814.0 150.797 4111.1 CS818104.0/99.00.0278 7560.0 7632.0 226.195 3617.5 CS32020071.8/61.81980.0500 2912.0 2952.0 125.664 2645.3 CS620119.1/111.60.0375 6406.7 6460.0 167.552 4567.9 CS820104.0/99.00.0250 8400.0 8480.0 251.328 4019.4 CS32222071.8/61.81980.0455 3203.2 3247.2 138.230 2909.8 CS722119.1/111.60.0341 7047.3 7106.0 184.307 5024.6 CS922104.0/99.00.0227 9240.0 9328.0 276.461 4421.3 CS42525071.8/61.81980.0400 3640.0 3690.0 157.080 3306.6 CS825119.1/111.60.0300 8008.3 8075.0 209.440 5709.8 CS1025104.0/99.00.0200 10500.0 10600.0 314.160 5024.3 注：1、表示砌缝（辐射缝）厚度，mm。2、CS516、CS618、CS620、CS722及CS825的大端尺寸119.1mm的设计尺寸为119.125mm。上述砖号外直径计算中采用设计尺寸119.125mm。3、大小端尺寸（mm）C/D为120.4/112.9、120.4/115.4、119.6/111.6、104.0/99.0的加厚锁砖，可作为大直径楔形砖配砌等楔差双楔形砖砖环。附录A窑衬配砌方案设计计算为适应回转窑用砖的国际标准和我国标准采取的等大端尺寸、等中间尺寸、不等端尺寸和等楔差尺寸双楔形砖砖环的计算，本部分采用基于回转窑用砖尺寸特征的简化计算式 (A1) (A2)式中Kx及Kd-分别为所计算双楔形砖砖环内小直径楔形砖及大直径楔形砖的数量，块；Kx及Kd-分别为所计算双楔形砖砖环内小直径楔形砖及大直径楔形砖的每环极限砖块数，块；Dx及Dd-分别为所计算双楔形砖砖环内小直径楔形砖及大直径楔形砖的外直径，mm；D-所计算双楔形砖砖环的外直径，mm，此时DxDDd.简化计算式A1和式A2可用于国际标准中等大端尺寸103mm系列砖环和等中间尺寸71.5mm系列砖环的计算，但其简易计算式太多，不规范和难以记忆。在式A1和式A2指导下，等大端尺寸100mm和等中间尺寸75mm双楔形砖环内相配砌的两种楔形砖的楔差之比设计为1/2、2/3或3/4的简单整数比，便得到楔差比相同的诸多砖环采用同一规范计算通式，见表A1和表A2。为适应大直径回转窑衬需要，但又不减小砖的楔差，本标准增设了等楔差5mm和7.5mm的加厚砖，同时作为加厚锁砖。由于等楔差尺寸双楔形砖砖环内两种砖的外直径之比设计成连续整数比，这些砖环的计算式更简单规范，见表A3和A4。为用户选择合理并优选的配砌方案，在表A1A4中列出共70种窑衬双楔形砖砖环。同时，以示例1和示例2提供其设计计算及优选方法。21表A1 等大端尺寸100mm回转窑衬双楔形砖砖环配砌方案设计计算序号配砌尺寸砖号外直径D（mm）范围每环极限砖数，块每环砖量规范通式小直径楔形砖大直径楔形砖DxDdKxKd小直径楔形砖量Kx，块大直径楔形砖量Kd，块总砖量Kh，块楔差比2/31D216D3162176.0 3264.0 67.021 100.531 2D218D4182448.0 3672.0 75.398 113.098 3D320D4202720.0 4080.0 83.776 125.664 4D322D4222992.0 4488.0 92.154 138.230 Kx=20.03080(Dd-D)Kd=30.03080(D-Dx)5D325D5253400.0 5100.0 104.720 157.080 Kx=2(Dd-D)/32.4675Kd=3(D-Dx)/32.4675Kh=0.03080D6D416D7164352.0 6528.0 134.042 201.062 或Kx=3Kx-20.03080D或Kd=30.03080D-2Kd7D518D7184896.0 7344.0 150.797 226.195 8D520D8205440.0 8160.0 167.552 251.328 9D622D9225984.0 8976.0 184.307 276.461 10D725D10256800.0 10200.0 209.440 314.160 楔差比1/211D216D4162176.0 4352.0 67.021 134.042 12D218D5182448.0 4896.0 75.398 150.797 13D320D5202720.0 5440.0 83.776 167.552 14D322D6222992.0 5984.0 92.154 184.307 Kx=0.03080(Dd-D)Kd=20.03080(D-Dx)15D325D7253400.0 6800.0 104.720 209.440 Kx=(Dd-D)/32.4675Kd=2(D-Dx)/32.4675Kh=0.03080D16D316D7163264.0 6528.0 100.531 201.062 或Kx=2Kx-0.03080D或Kd=20.03080D-Kd17D418D7183672.0 7344.0 113.098 226.195 18D420D8204080.0 8160.0 125.664 251.328 19D422D9224488.0 8976.0 138.230 276.461 20D525D10255100.0 10200.0 157.080 314.160 楔差比3/421D316D4163264.0 4352.0 100.531 134.042 22D418D5183672.0 4896.0 113.098 150.797 Kx=30.03080(Dd-D)Kd=40.03080(D-Dx)23D420D5204080.0 5440.0 125.664 167.552 Kx=3(Dd-D)/32.4675Kd=4(D-Dx)/32.4675Kh=0.03080D24D422D6224488.0 5984.0 138.230 184.307 或Kx=4Kx-30.03080D或Kd=40.03080D-Kd25D525D7255100.0 6800.0 157.080 209.440 注：本表计算中砌缝（辐射缝）厚度采取2mm。表A2 等中间尺寸75mm回转窑衬双楔形砖砖环配砌方案设计计算序号配砌尺寸砖号中间直径Dp（mm）范围每环极限砖数，块每环砖量规范通式小直径楔形砖大直径楔形砖DpxDpdKxKd小直径楔形砖量Kx，块大直径楔形砖量Kd，块总砖量Kh，块楔差比2/31C216C3161642.7 2464.0 67.021 100.531 2C218C3181848.0 2772.0 75.398 113.098 3C220C3202053.3 3080.0 83.776 125.664 4C222C4222258.7 3388.0 92.154 138.230 Kx=20.04080(Dpd-Dp)Kd=30.04080(Dp-Dpx)5C325C4252566.7 3850.0 104.720 157.080 Kx=2(Dpd-Dp)/24.5098Kd=3(Dp-Dpx)/24.5098Kh=0.04080Dp6C416C5163285.3 4928.0 134.042 201.062 或Kx=3Kx-20.04080Dp或Kd=30.04080Dp-2Kd7C418C6183696.0 5544.0 150.797 226.195 8C420C6204106.7 6160.0 167.552 251.328 9C522C7224517.3 6776.0 184.307 276.461 10C525C8255133.3 7700.0 209.440 314.160 楔差比1/211C216C4161642.7 3285.3 67.021 134.042 12C218C4181848.0 3696.0 75.398 150.797 13C220C4202053.3 4106.7 83.776 167.552 14C222C5222258.7 4517.3 92.154 184.307 Kx=0.04080(Dpd-Dp)Kd=20.04080(Dp-Dpx)15C325C5252566.7 5133.3 104.720 209.440 Kx=(Dpd-Dp)/24.5098Kd=2(Dp-Dpx)/24.5098Kh=0.04080Dp16C316C5162464.0 4928.0 100.531 201.062 或Kx=2Kx-0.04080Dp或Kd=20.04080Dp-Kd17C318C6182772.0 5544.0 113.098 226.195 18C320C6203080.0 6160.0 125.664 251.328 19C422C7223388.0 6776.0 138.230 276.461 20C425C8253850.0 7700.0 157.080 314.160 楔差比3/421C316C4162464.0 3285.3 100.531 134.042 22C318C4182772.0 3696.0 113.098 150.797 Kx=30.04080(Dpd-Dp)Kd=40.04080(Dp-Dpx)23C320C4203080.0 4106.7 125.664 167.552 Kx=3(Dpd-Dp)/24.5098Kd=4(Dp-Dpx)/24.5098Kh=0.04080Dp24C422C5223388.0 4517.3 138.230 184.307 或Kx=4Kx-30.04080Dp或Kd=40.04080Dp-Kd25C425C5253850.0 5133.3 157.080 209.440 注：本表计算中砌缝（辐射缝）厚度采取2mm。表A3 等楔差5mm回转窑衬双楔形砖砖环配砌方案设计计算序号配砌尺寸砖号外直径D（mm）范围每环极限砖数，块每环砖量规范通式小直径楔形砖大直径楔形砖DxDdKx=Kd=Kh小直径楔形砖量Kx，块大直径楔形砖量Kd，块总砖量Kh，块外直径比3/41C516CS7165088.06784.0201.0622C618CS8185724.07632.0226.195Kx=0.11855(Dd-D)Kd=0.11855(D-Dx)3C620CS8206360.08480.0251.328Kx=(Dd-D)/8.4352Kd=(D-Dx)/8.4352Kh=0.11855(Dd-Dx)4C722CS9226996.09328.0276.461或Kx=4Kx-0.11855D或Kd=0.11855D-3Kd5C825CS10257950.010600.0314.160外直径比5/66D716DS8166528.07833.6201.0627D718DS9187344.08812.8226.195Kx=0.1540(Dd-D)Kd=0.1540(D-Dx)8D820DS10208160.09792.0251.328Kx=(Dd-D)/6.4935Kd=(D-Dx)/6.4935Kh=0.1540(Dd-Dx)9D922DS10228976.010771.2276.461或Kx=6Kx-0.1540D或Kd=0.1540D-5Kd10D1025DS122510200.012240.0314.160注：本表计算中砌缝（辐射缝）厚度采取2mm。表A4 等楔差7.5mm回转窑衬双楔形砖砖环配砌方案设计计算序号配砌尺寸砖号外直径D（mm）范围每环极限砖数，块每环砖量规范通式小直径楔形砖大直径楔形砖DxDdKx=Kd=Kh小直径楔形砖量Kx，块大直径楔形砖量Kd，块总砖量Kh，块外直径比2/31C416CS5163445.3 5168.0 134.042 2C418CS6183876.0 5814.0 150.797 Kx=0.07781(Dd-D)Kd=0.07781(D-Dx)3C420CS6204306.7 6460.0 167.552 Kx=(Dd-D)/12.8517Kd=(D-Dx)/12.8517Kh=0.07781(Dd-Dx)4C522CS7224737.3 7106.0 184.307 或Kx=3Kx-0.07781D或Kd=0.07781D-2Kd5C525CS8255383.3 8075.0 209.440 外直径比5/66D416DS5164352.0 5222.4 134.042 7D518DS6184896.0 5875.2 150.797 Kx=0.1540(Dd-D)Kd=0.1540(D-Dx)8D520DS7205440.0 6528.0 167.552 Kx=(Dd-D)/6.4935Kd=(D-Dx)/6.4935Kh=0.1540(Dd-Dx)9D622DS7225984.0 7180.8 184.307 或Kx=6Kx-0.1540D或Kd=0.1540D-5Kd10D725DS8256800.0 8160.0 209.440 注：本表计算中砌缝（辐射缝）厚度采取2mm。【示例1】 外直径D=6500.0mm，窑衬厚A=250mm的回转窑砖衬，砌缝厚度=2mm时，优选配砌方案。砖环外直径D=6500.0mm，则砖环中间直径Dp=6500.0-250=6250.0mm。由表1知，采用等大端尺寸103mm砖时，可有DxDd为5097.1mm7000.0mm的A525与A725砖坯（方案1：KA525=152.505块，KA725=209.440块）、DxDd为6176.5mm7000.0mm的A625与A725砖坯（方案2：KA625=184.80块，KA725=209.440块）、DxDd为6176.5mm8076.9mm的A625与A825砖坯（方案3：KA625=184.80块，KA825=241.662块）。由表2知，采用等中间尺寸71.5mm砖时，可有DxDd为5500.0mm7600.0mm的B525与B725砖环（方案4：KB525=224.40块，KB725=314.160块）、DxDd为6375.0mm7600.0mm的B625与B725砖环（方案5：KB625=261.80块，KB725=314.160块）。由表A2知，采用等中间尺寸75mm砖时，可有DpxDpd为3850.0mm7700.0mm的C425与C825砖环（方案6：KC425=157.080块，KC825=314.160块）、DpxDpd为5133.3mm7700.0mm的C525与C825砖环（方案7：KC525=209.440块，KC825=314.160块）。由表A1知，采用等大端尺寸100mm砖时，可有DxDd为3400.0mm6800.0mm的D325与D725砖环（方案8：KD325=104.720块，KD725=209.440块）、DxDd为5100.0mm6800.0mm的D525与D725砖环（方案9：KD525=157.080块，KD725=209.440块）、DxDd为5100.0mm10200.0mm的D525与D1025砖环