7 井下运输7.1运输系统和运输方式的确定7.1.1、运输系统的确定矿

7 井下运输7.1运输系统和运输方式的确定7.1.1、运输系统的确定矿井设计生产能力2.4Mt/a，根据矿井的开拓布置，主斜井与采区运输大巷都采用的是皮带运输方式，9号煤层隶属于近水平煤层，皮带经过回采工作面的运输顺槽直达采区的运输大巷，通过大巷的皮带到达主斜井的提升皮带处；副斜井落底于9号煤层+1478m标高，在+1478m水平处设置轨道大巷和井底车场，在轨道大巷的未端处设置绞车房硐室。7.1.2、运输方式的确定1、主运输方式井下主运输巷道为运输大巷和皮带大巷运输顺槽，担负矿井运煤的任务。原煤运输：综放工作面(采煤机落煤、装煤)→可弯曲刮板输送机→顺槽转载机→顺槽破碎机→顺槽可伸缩胶带机→9号煤胶带大巷输送机→9号煤集中胶带巷输送机→井底煤仓(下口给煤机) →主斜井胶带输送机→地面生产系统。为了适应矿井的运输距离长、运输量多、机械化程度高、维修便利、运行平稳、调度组织简便、运行阻力弱、营运费用不高、劳动强度低、生产潜力巨大、耗电量低下、自动化的程度高、安全可靠性稳定等优点，故主运输方式选用带式输送机。2、辅助运输方式辅助运输巷道为轨道大巷、回采工作面回风顺槽，担任运送设备、材料、矸石这些辅助运输的任务。井下轨道辅助运输选取串车运输方式。材料及设备运输：（1）9号煤集中轨道巷→9号煤轨道大巷→回采工作面回风顺槽→回采工作面。（2）副斜·井井底车场→轨道大巷→掘进工作面矸石运输：（1）掘进工作面→轨道大巷→副斜井井底车场。（2）回采工作面→回采工作面回风顺槽→轨道大巷→副斜井井底车场。3、人员运输方式人员运输都是通过副井的架空乘人器输送达井底车场，完后徒步到达工作面。工作人员通过：副斜井——架空乘人器——等候硐室等候硐室——架空乘人器——副斜井。7.2运输设备的选择和计算井下煤炭的运输大巷是运输大巷及皮带运输顺槽，担负着矿井煤炭的输输任务；辅助运输巷道为，轨道回采工作面回风顺槽，轨道大巷，担负着矿井矸石、设备、材料等这些辅助运输的任务。7.2.1、主运输设备皮带运输的顺槽，设计选取SSJ-1200/2×200可伸缩的带式输送机，它的主要技术参数是：输送量为1200 t/h，倾角大小为±5°，输送长度为1000米，带宽1.2m，带速为2.5m/s，电机的功率为200×2kW，电压3200v，尾部都配备的自移装置。皮带运输大巷，设计选取DSJ120/160/3×200带式的输送机，配用的是三台功率为200kW的防爆电动机。1、皮带运输顺槽设备选型(1)设计依据1）矿井设计输送能力：An=240万吨/a2）倾角：δ＝6°3）输送机的长度：L=100000cm4）输送高度：H=160.3m5）原煤的松散的密度：ρ=890kg/m³6）原煤的松散粒度：0～50cm7）输送机的输送量：1200t/h8）每米输送带机上的物料质量为qG=66.6kg/m(2)设计选型1）初步设定参数① 输送带：类型钢丝绳芯阻燃抗静电输送带，带宽为B=12cm，输送带每米的质量为 qB=34kg/m，输送带的强度σ=2100N/mm，带速V=2.2m/s② 托辊直径136mm③ 承载段（槽形前倾）托辊的间距为120cm；前倾角ε=1°24′，每米承载托辊转动质量qRO=15.70kg/m，托辊槽角为35°，槽形系数为Cε=0.42④ 回程段的（平形）托辊的间距为3m，每米的回程托辊转动质量是qRU=5.35kg/m⑤ 附加阻力系数C″=1.084⑥ 模拟的摩擦系数f=0.03⑦ 启动系数KA=1.2⑧ 托辊与输送带间的摩擦系数μ0=0.4⑨ 导料槽长度lb=40cm2）带式输送机输送能力顺槽带式输送机运送的能力大于工作面最大生产能力，顺槽带式输送机最高每小时运送能力为Q=1200t/h。3）输送带宽度确定① 按带式输送机运输量计算输送带宽度选用输送带的速度为V=2.4m/s，堆积角25°，货载断面系数K=423，倾角系数C′=0.8（倾角6°）。 ② 原煤松散粒度计算输送带宽度为原煤最大粒度amax=500㎜2amax+200=1200㎜

7 井下运输7.1运输系统和运输方式的确定7.1.1、运输系统的确定矿井设计生产能力2.4Mt/a，根据矿井的开拓布置，主斜井与采区运输大巷都采用的是皮带运输方式，9号煤层隶属于近水平煤层，皮带经过回采工作面的运输顺槽直达采区的运输大巷，通过大巷的皮带到达主斜井的提升皮带处；副斜井落底于9号煤层+1478m标高，在+1478m水平处设置轨道大巷和井底车场，在轨道大巷的未端处设置绞车房硐室。7.1.2、运输方式的确定1、主运输方式井下主运输巷道为运输大巷和皮带大巷运输顺槽，担负矿井运煤的任务。原煤运输：综放工作面(采煤机落煤、装煤)→可弯曲刮板输送机→顺槽转载机→顺槽破碎机→顺槽可伸缩胶带机→9号煤胶带大巷输送机→9号煤集中胶带巷输送机→井底煤仓(下口给煤机) →主斜井胶带输送机→地面生产系统。为了适应矿井的运输距离长、运输量多、机械化程度高、维修便利、运行平稳、调度组织简便、运行阻力弱、营运费用不高、劳动强度低、生产潜力巨大、耗电量低下、自动化的程度高、安全可靠性稳定等优点，故主运输方式选用带式输送机。2、辅助运输方式辅助运输巷道为轨道大巷、回采工作面回风顺槽，担任运送设备、材料、矸石这些辅助运输的任务。井下轨道辅助运输选取串车运输方式。材料及设备运输：（1）9号煤集中轨道巷→9号煤轨道大巷→回采工作面回风顺槽→回采工作面。（2）副斜·井井底车场→轨道大巷→掘进工作面矸石运输：（1）掘进工作面→轨道大巷→副斜井井底车场。（2）回采工作面→回采工作面回风顺槽→轨道大巷→副斜井井底车场。3、人员运输方式 人员运输都是通过副井的架空乘人器输送达井底车场，完后徒步到达工作面。 工作人员通过：副斜井——架空乘人器——等候硐室 等候硐室——架空乘人器——副斜井。7.2运输设备的选择和计算井下煤炭的运输大巷是运输大巷及皮带运输顺槽，担负着矿井煤炭的输输任务；辅助运输巷道为，轨道回采工作面回风顺槽，轨道大巷，担负着矿井矸石、设备、材料等这些辅助运输的任务。7.2.1、主运输设备皮带运输的顺槽，设计选取SSJ-1200/2×200可伸缩的带式输送机，它的主要技术参数是：输送量为1200 t/h，倾角大小为±5°，输送长度为1000米，带宽1.2m，带速为2.5m/s，电机的功率为200×2kW，电压3200v，尾部都配备的自移装置。皮带运输大巷，设计选取DSJ120/160/3×200带式的输送机，配用的是三台功率为200kW的防爆电动机。1、皮带运输顺槽设备选型(1)设计依据1）矿井设计输送能力：An=240万吨/a2）倾角：δ＝6°3）输送机的长度：L=100000cm4）输送高度：H=160.3m5）原煤的松散的密度：ρ=890kg/m³6）原煤的松散粒度：0～50cm7）输送机的输送量：1200t/h8）每米输送带机上的物料质量为qG=66.6kg/m(2)设计选型1）初步设定参数① 输送带：类型钢丝绳芯阻燃抗静电输送带，带宽为B=12cm，输送带每米的质量为 qB=34kg/m，输送带的强度σ=2100N/mm，带速V=2.2m/s② 托辊直径136mm③ 承载段（槽形前倾）托辊的间距为120cm；前倾角ε=1°24′，每米承载托辊转动质量qRO=15.70kg/m，托辊槽角为35°，槽形系数为Cε=0.42④ 回程段的（平形）托辊的间距为3m，每米的回程托辊转动质量是qRU=5.35kg/m⑤ 附加阻力系数C″=1.084⑥ 模拟的摩擦系数f=0.03⑦ 启动系数KA=1.2⑧ 托辊与输送带间的摩擦系数μ0=0.4⑨ 导料槽长度lb=40cm2）带式输送机输送能力顺槽带式输送机运送的能力大于工作面最大生产能力，顺槽带式输送机最高每小时运送能力为Q=1200t/h。3）输送带宽度确定① 按带式输送机运输量计算输送带宽度选用输送带的速度为V=2.4m/s，堆积角25°，货载断面系数K=423，倾角系数C′=0.8（倾角6°）。 ② 原煤松散粒度计算输送带宽度为原煤最大粒度amax=500㎜2amax+200=1200㎜

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结果 (英语) 1: [复制]

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7 Underground transportation 7.1 Determination of transportation system and transportation mode 7.1.1 Determination of transportation system The design and production capacity of the mine is 2.4 Mt / a. According to the development layout of the mine, the main inclined shaft and the transportation lanes of the mining area both adopt the belt transportation mode , No. 9 coal seam belongs to the near-horizontal coal seam, the belt passes through the transportation groove of the mining face and directly reaches the transportation lane of the mining area, and the belt passes through the lane to the lifting belt of the main inclined shaft; the auxiliary inclined shaft falls to the No. 9 coal layer + 1478m elevation, set rail lane and underground garage at + 1478m level, and set up winch room at the end of the rail lane. 7.1.2. Determination of transportation mode 1. The main transportation mode The underground main transportation roadway is the transportation roadway of the transportation roadway and the belt roadway, which is responsible for the coal transportation of the mine. Raw coal transportation: fully mechanized caving face (coal shearer falling coal, loading coal) → flexible scraper conveyor → slot transfer machine → slot crusher → slot retractable belt conveyor → No. 9 coal belt conveyor → No. 9 Coal Concentrated Belt Lane Conveyor → Coal bin at the bottom of the well (lower coal feeder) → Main inclined belt conveyor → Ground production system. In order to adapt to the mine's long transportation distance, large transportation volume, high degree of mechanization, convenient maintenance, stable operation, easy scheduling and organization, weak operating resistance, low operating cost, low labor intensity, huge production potential, low power consumption, automated It has the advantages of high degree, stable safety and reliability, so the main transportation mode is the belt conveyor. 2. Auxiliary transportation methods The auxiliary transportation lanes are the rail roadway and the return air flume of the mining face, and serve as the auxiliary transportation tasks of transportation equipment, materials and gangue. The underground rail auxiliary transportation chooses the train transportation method. Material and equipment transportation: (1) No. 9 coal centralized rail lane → No. 9 coal rail major lane → return working face of the mining face → mining face. (2) Vice declination · bottom shaft depot → track alley → gangue transportation in driving face : (1) tunneling face → track major lane → deputy shaft bottom depot (2) The mining face → the return air flume of the mining face → the track alley → the auxiliary inclined shaft bottom yard. 3. Personnel transportation mode Personnel transportation is carried by the overhead maneuver of the auxiliary shaft to the bottom yard, and then walk to the working face after walking. The staff passed: auxiliary inclined shaft-overhead passenger-waiting room waiting room-overhead passenger-auxiliary inclined shaft. 7.2 Selection and calculation of transportation equipment The underground coal transportation roadway is the transportation roadway and belt transportation flume, which is responsible for the coal transportation of the mine; the auxiliary transportation roadway is the return air flume of the rail mining face, the rail roadway, It is responsible for the auxiliary transportation of mine gangue, equipment and materials. 7.2.1. The main transportation equipment is transported along the groove, and the SSJ-1200 / 2 × 200 retractable belt conveyor is selected for design. Its main technical parameters are: delivery volume is 1200 t / h, and the inclination angle is ± 5 °, the conveying length is 1000 meters, the bandwidth is 1.2m, the belt speed is 2.5m / s, the power of the motor is 200 × 2kW, the voltage is 3200v, and the tail is equipped with a self-moving device. For the belt transportation road, the design of the DSJ120 / 160/3 × 200 belt conveyor is used, and three explosion-proof motors with a power of 200kW are used. 1. Selection of equipment for belt transportation along the groove (1) Design basis 1) Mine design conveying capacity: An = 2.4 million tons / a 2) Inclination angle: δ = 6 ° 3) Conveyor length: L = 100000cm 4) Conveying height : H = 160.3m 5) Loose density of raw coal: ρ = 890kg / m³ 6) Loose particle size of raw coal: 0 ～ 50cm 7) Conveying capacity of conveyor: 1200t / h 8) Material quality per meter conveyor is qG = 66.6kg / m (2) Design selection 1) Initial setting parameters ① Conveyor belt: type steel wire core flame retardant antistatic conveyor belt, the bandwidth is B = 12cm, the quality of the conveyor belt per meter is qB = 34kg / m, the strength of the conveyor belt σ = 2100N / mm, the belt speed V = 2.2m / s ② Roller diameter 136mm ③ Bearing section (groove forward tilt) The distance between the rollers is 120cm; forward inclination angle ε = 1 ° 24 ′, the rotating mass of the supporting roller per meter qRO = 15.70kg / m, the roller groove angle is 35 °, the groove shape coefficient is Cε = 0.42 ④ The distance between the (flat) rollers in the return section is 3m, and the rotating mass of the return rollers per meter is qRU = 5.35kg / m ⑤ Additional drag coefficient C ″ = 1.084 ⑥ Simulated Friction coefficient f = 0.03 ⑦ Starting coefficient KA = 1.2 ⑧ Friction coefficient between idler and conveyor belt μ0 = 0.4 ⑨ Length of guide trough lb = 40cm 2) Conveying capacity of belt conveyor The capacity of conveying along the groove belt conveyor is greater than The maximum production capacity of the working face, the maximum hourly conveyor capacity of the belt conveyor is Q = 1200t / h. 3) The width of the conveyor belt is determined ① The conveyor belt width is calculated according to the conveyor volume of the conveyor . 2.4m / s, accumulation angle 25 °, cargo section coefficient K = 423, inclination coefficient C ′ = 0.8 (inclination angle 6 °). ② Raw coal loose particle size calculation The conveyor belt width is the maximum particle size of raw coal amax = 500㎜ 2 amax+ 200= 1200㎜

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结果 (英语) 2:[复制]

复制成功！

7 Underground transport 7.1 Identification of transport systems and modes of transport 7.1.1, the determination of the transport system Mine design production capacity 2.4Mt/a, according to the development of the mine layout, the main sloped well and the mining area transport ation lane are belt transport mode, the 9th coal seam belongs to the near horizontal coal seam, the belt through the back of the work surface of the transport channel directly to the transport lane of the mining area, through the belt of the main lane Reaching the lifting belt of the main slope well, the sub-slope well is lowered at the no. 9 coal seam and 1478m, the track alley and the underground car yard are set up at the level of 1478m, and the winch room is set at the unend of the track lane. 7.1.2, the determination of the mode of transport 1, the main mode of transport The underground main transport roadway is the transport ation channel for the transport ation lane and belt lane, and is responsible for the task of carrying coal in the mine. Raw coal transport: comprehensive release of the work surface (coal mining machine falling coal, coal loading) , can bend the scraper conveyor , shun slot re-transmission machine , shun slot crusher , shun slot retractable tape machine , 9 coal tape large alley conveyor , 9 coal concentrated tape lane conveyor , well bottom coal warehouse (downto coal machine) , main oblique well tape conveyor , ground production system. In order to adapt to the mine's long transport distance, transport volume, high degree of mechanization, maintenance convenience, smooth operation, simple dispatch organization, weak operating resistance, operating costs are not high, low labor intensity, production potential is huge, low power consumption, high degree of automation, high degree of safety and reliability and other advantages, so the main mode of transport choose belt conveyor. 2, auxiliary mode of transport Auxiliary transport roadway for the track lane, back-picking work surface back wind channel, as the transport equipment, materials, zircon these auxiliary transport tasks. Underground track auxiliary transport chooses the mode of transportation of serial vehicles. Materials and equipment transportation: (1) No. 9 coal concentrated track lane , 9 coal track lane , back-picking work surface back wind smooth groove , back-picking work surface. (2) Sub-slope well bottom car yard, track alley, digging into the work surface Zircon transportation: (1) digging into the work surface, track alley, sub-slope well bottom car yard. (2) Back to pick the work surface , back-picking work surface back wind smooth groove , track alley , deputy slopewell bottom car yard. 3, the mode of transport of people Personnel transport is through the overhead flight attendants of the sub-wells to transport the bottom of the well, after the completion of the foot to reach the work surface. Staff through: Deputy Slope Well - Overhead Flight Attendant - Waiting room Waiting room - overhead flight attendant - deputy oblique well. 7.2 Selection and calculation of transport equipment Underground coal transport ation lane is the transport lane and belt transport inge, bear the task of coal transportation, auxiliary transport ation roadway for, track back-picking work surface back wind down the channel, track alley, bear the mine boulder, equipment, materials and other auxiliary transport tasks. 7.2.1, main transport equipment Belt transport slot, design selectSJ-1200/2 x 200 retractable belt conveyor, its main technical parameters are: the transport volume is 1200 t/h, inclination size of 5 degrees, the transmission length of 1000 meters, bandwidth 1.2 m, belt speed of 2.5m/s, the tail power of 200 x 2kW, voltage shift, the device is equipped with the device. Belt transport alley, design selection DSJ120/160/3 x 200 belt conveyor, with three power 200kW explosion-proof motor. 1, belt transport slot equipment selection (1) Design basis 1) Mine design transmission capacity: An -2.4 million tons/a 2) Inclusiation: s. . . . . . . . . . . . . . . . 3) Length of conveyor: L-100,000cm 4) Transport height: H-160.3m 5) Loose density of raw coal: s.890kg/m3 6) Loose granularity of raw coal: 0 to 50cm 7) Conveyor delivery: 1200t/h 8) The material quality on the conveyor belt machine is qG -66.6kg/m (2) Design selection 1) Preliminary setting parameters (1) Conveyor belt: type wire rope core flame retardant anti-static conveyor belt, bandwidth is B - 12cm, the quality of the conveyor belt per meter is qB , 34kg/m, the strength of the conveyor belt is 2100N/mm, with speed V s 2.2m/s (2) Roller diameter 136mm (3) The spacing of the bearing segment (slot-shaped forward tilt) roller is 120cm, the forward tilt angle is 1 s 24', the rotation mass of the bearing roller per meter is 15.70 kg/m, the scale of the roller is 35 degrees, the groove coefficient is C.s. (4) The spacing of the (flat) roller in the return section is 3m, and the rotation mass of the return roller per meter is qRU s 5.35kg/m (5) Additional drag coefficient C" s 1.084 (6) The friction coefficient of the simulation f-0.03 (7) Start factor KA s 1.2 (8) The coefficient of friction between the roller and the conveyor belt is 0.4 (9) Guide groove length lb s 40cm 2) Belt conveyor delivery capacity The capacity of the slot-belt conveyor is greater than the maximum production capacity of the working surface, and the maximum per hour delivery capacity of the slot-belt conveyor is Q-1200t/h. 3) Belt width determination (1) The width of the conveyor belt is calculated according to the amount of transport of the belt conveyor The speed of the conveyor belt was V-2.4m/s, the stacking angle was 25 degrees, the load section coefficient K-423, and the inclination factor C', 0.8 (inclination 6 degrees). (2) Raw coal loose granularity calculates that the width of the conveyor belt is Raw coal maximum particle size amax s 500mm 2amax s 200 x 1200mm

正在翻译中..

结果 (英语) 3:[复制]

复制成功！

7 underground transportation 7.1 determination of transportation system and mode 7.1.1 determination of transportation system The designed production capacity of the mine is 2.4mt/a. According to the development and layout of the mine, the main inclined shaft and the transportation roadway in the mining area adopt the belt transportation mode. The No.9 coal seam belongs to the near horizontal coal seam, and the belt passes through the transportation chute of the mining face to the transportation roadway in the mining area, and reaches the lifting belt of the main inclined shaft through the belt of the roadway; the auxiliary inclined shaft is at the elevation of + 1478m in + 1478m in + 9 coal seam At the horizontal place, the main track Lane and the car yard at the bottom of the well are set, and the winch room is set at the end of the main track Lane. 7.1.2 determination of transportation mode 1. Main mode of transportation The underground main haulage roadway is the main haulage roadway and belt roadway, which is responsible for the task of coal transportation. Raw coal transportation: fully mechanized caving working face (coal falling and loading by shearer) → bendable scraper conveyor → chute transfer machine → chute crusher → chute retractable belt conveyor → conveyor of No.9 coal belt main lane → conveyor of No.9 coal centralized belt Lane → coal bunker at the bottom of the well (lower coal feeder) → belt conveyor of main inclined shaft → ground production system. In order to adapt to the advantages of long transportation distance, large transportation volume, high mechanization, convenient maintenance, stable operation, simple dispatching organization, weak operation resistance, low operation cost, low labor intensity, huge production potential, low power consumption, high degree of automation, stable safety and reliability, the main transportation mode is belt conveyor. 2. Auxiliary mode of transportation The auxiliary transportation roadway is the main track roadway and the return air chute of the working face. It is used to transport equipment, materials, gangue and other auxiliary transportation tasks. The underground track auxiliary transportation selects the train transportation mode. Transportation of materials and equipment: (1) No.9 coal centralized track roadway → No.9 coal track roadway → return air chute of the mining face → mining face. (2) Auxiliary incline, shaft bottom yard, track roadway, driving face Gangue transportation: (1) driving face → track roadway → auxiliary inclined shaft bottom yard. (2) Working face → air return chute of working face → track roadway → auxiliary inclined shaft bottom car yard. 3. Personnel transportation mode The personnel transportation is carried to the bottom of the shaft through the overhead passenger device of the auxiliary shaft, and then to the working face on foot. Staff passing: auxiliary inclined shaft - overhead passenger - waiting chamber Waiting chamber - overhead passenger device - auxiliary inclined shaft. 7.2 selection and calculation of transportation equipment The transportation roadway of underground coal is the transportation roadway and belt transportation chute, which is responsible for the coal transportation task of the mine; the auxiliary transportation roadway is the return air chute of the rail mining face, the rail roadway, which is responsible for the auxiliary transportation task of the mine gangue, equipment, materials, etc. 7.2.1 main transportation equipment The ssj-1200 / 2 × 200 retractable belt conveyor is selected for the design of the belt transportation. Its main technical parameters are: the conveying capacity is 1200 T / h, the inclination is ± 5 °, the conveying length is 1000 m, the belt width is 1.2 m, the belt speed is 2.5 m / s, the power of the motor is 200 × 2 kW, the voltage is 3200 V, and the tail is equipped with the self shifting device. Dsj120 / 160 / 3 × 200 belt conveyor is selected in the design of belt transportation roadway, which is equipped with three explosion-proof motors with a power of 200kW. 1. Selection of equipment for belt transportation (1) Design basis 1) Designed conveying capacity of the mine: an = 2.4 million tons / A 2) Inclination: δ = 6 ° 3) Length of conveyor: l = 1000000cm 4) Conveying height: H = 160.3m 5) Loose density of raw coal: ρ = 890kg / m3 6) Loose particle size of raw coal: 0-50cm 7) Conveying capacity of conveyor: 1200t / h 8) The mass of material on conveyor belt per meter is QG = 66.6kg/m (2) Design selection 1) Preliminary setting parameters ① Conveyor belt: type of flame-retardant and anti-static conveyor belt with steel wire rope core, belt width b = 12cm, mass per meter of conveyor belt QB = 34kg / m, belt strength σ = 2100n / mm, belt speed v = 2.2m/s ② Diameter of idler: 136mm ③ The distance between rollers in the bearing section (groove forward tilt) is 120cm; the rake angle is ε = 1 ° 24 ', the rotating mass of roller per meter is QRO = 15.70kg/m, the groove angle of roller is 35 °, and the groove coefficient is C ε = 0.42 ④ The distance between the (flat) idlers in the return section is 3M, and the rotating mass of the return idlers per meter is qru = 5.35kg/m ⑤ Additional resistance coefficient C ″ = 1.084 ⑥ Simulated friction coefficient f = 0.03 ⑦ Starting factor Ka = 1.2 ⑧ Friction coefficient between idler and conveyor belt μ 0 = 0.4 ⑨ Guide chute length Lb = 40cm 2) Belt conveyor capacity The transport capacity of the belt conveyor along the trough is greater than the maximum production capacity of the working face, and the maximum hourly transport capacity of the belt conveyor along the trough is q = 1200t / h. 3) Belt width determination ① Calculate the belt width according to the transportation volume of belt conveyor The speed of conveyor belt is v = 2.4m/s, stacking angle is 25 °, the section coefficient of cargo load is k = 423, and the inclination coefficient is C ′ = 0.8 (inclination angle is 6 °). ② Raw coal loose particle size calculation conveyor belt width is Maximum particle size of raw coal Amax = 500 mm 2amax+200=1200㎜

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