JIANGSU PENGFEI GROUP CO.,LTD
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25ton Per Hour Q235A Vertical Roller Cement Grinding Mill
In 2020, affected by the outbreak of new coronavirus pneumonia, the time for enterprises to return to work was delayed. However, since the resumption of work on February 10, all work has gradually entered the normal track, and by February 24, all work has been resumed in place, with a return rate of 100%.In 2020, Pengfei group will focus on the goal of sales growth of more than 15% and tax growth of more than 10%, focus on the three key tasks of listed fund-raising investment, production line EPC and overseas investment, implement the strategy of science and technology, internationalization, capitalization and refinement, and promote the high-quality development of Pengfei group to a new level in accordance with the requirements of high-quality redevelopment and legal compliance of Hong Kong listing.
| No. | Instruction of parameter | Unit | Technical parameter | Remarks |
| Vertical Mill | set | 1 | ||
| Type | VRM5341C | |||
| Ground material | Clinker | |||
| Inlet material size | mm | ≤50 | ||
| Material moisture | % | ≤7 | ||
| Product finess | ≤60 microns | Clinker+gypsum and other mixed material | ||
| Product moisture | % | ≤0.5 | ||
| Capacity | t/h | 160 (4200cm2/g) | ||
| 200 (3200cm2/g) | ||||
| Inlet air temperature | °C | ＜300 | ||
| Gas temperature outlet of mill | ℃ | 90～105 | ||
| Inlet air pressure | pa | ～-500 | ||
| Outlet air volume | m3/h | 480000 | ||
| Outlet air pressure | Pa | -4000~-5500 | ||
| Material feeding system | Feeding from one side and material falling from center | |||
| 1 | Separator | |||
| 1.1 Rotor of separator | ||||
| Speed adjusting range | r/min | 60～160 | ||
| Vane material | UP wear resistant plate | |||
| Blade quantity | 196 | |||
| Useful life | h | ＞15000 | ||
| Rotor diameter | m | Ø4.6 | ||
| Total height of rotor | mm | 2600 | ||
| Steel plate thickness of housing | mm | 25 | ||
| 1.2 Rotor bearing of separator | pcs | 2 | ||
| Lower bearing type | 23134CC/W33 | |||
| Upper bearing type | 29434E | |||
| Manufacture | SKF | |||
| 1.3 Drive unit of separator | ||||
| Speed adjusting way | Frequency conversion | |||
| Motor type | YVP355M-4 | VVVF | ||
| Power | kW | 250 | ||
| Voltage | V | 380 | ||
| Speed | r/min | 1450 | ||
| Manufacture | Siemens of China | |||
| Insulation grade | IP54 | |||
| Gear box type | B2SV09-9-B | |||
| Gear ratio | 8.8 | |||
| Permitted input power | kW | 450 | ||
| Manufacture | FLENDER of China | |||
| 2 | Roller unit | |||
| 2.1 Roller | ||||
| Quantity | pcs | 4 | ||
| Diameter | mm | 2400 | ||
| Width of roller | mm | 850 | ||
| Shape | Tyre shape | |||
| Roller assembly weight | t | 28.7 | ||
| Inspect system | Oil cylinder for auxiliary repair | |||
| 2.2 Roller tyre | ||||
| Material | ZG20SiMn+ surface hardfacing | |||
| Hardness | HRC>58~62 | |||
| Useful life | h | ＞2,000 | ||
| 2.3 Roller shaft | 40CrNi | Tempering and quenching | ||
| 2.4 Roller bearing | ||||
| Bearing type | BC-6104 480×855×270 | |||
| BT2-6104 480×890×390 | ||||
| Useful life | h | ＞35,000 | ||
| Allowable max. temperature rise of bearing | ℃ | 80 | ||
| 2.5 Sealing air fan | ||||
| Type | 9-28ⅠNo4.5A-8 | |||
| Quantity | pcs | 1 | ||
| 2.6 Roller bearing lubrication | ||||
| Lubrication type | Circulating oil | |||
| Type of lubrication oil station | XRZ-2×16-2×10 | |||
| Qty | 2pcs | |||
| Oil pressure | MPa | 0.4 | ||
| Flow rate | l/min | 20 | ||
| 3 | Grinding table | |||
| 3.1 Table body | ||||
| Material | ZG270-500 | |||
| Nominal diameter | mm | 5300 | ||
| Speed | r/min | 22.6 | ||
| Height of dam ring | mm | ～200 | ||
| 3.2 Liner of grinding table | ||||
| Material | ZG20SiMn+ surface hardfacing | UP | ||
| Hardness | HRC>58~62 | |||
| Useful life | h | ＞2,000 | ||
| 4 | Upper housing | |||
| 4.1 Housing | Q235-A | |||
| 4.2 Liner inside the housing | Q235-A | CHP 6mm | ||
| Useful life | h | ＞20,000 | ||
| 4.3 Inspection door | ||||
| Quantity | pcs | 2 | ||
| 5 | Rocker | |||
| 5.1upper rocker+ lower rocker | ||||
| Quantity | group | 4 | ||
| Material of rocker | ZG35+Q235 | |||
| Material of rocker shaft | 40Cr | Tempering and quenching | ||
| 5.2 Rocker bearing | ||||
| Quantity | pcs | 8 | ||
| 6 | Frame part | |||
| Frame | pcs | 4 | ||
| Connecting bridge | pcs | 4 | ||
| Base of support | pcs | 1 | ||
| Base of gear box | pcs | 1 | ||
| 7 | Main drive | |||
| 7.1 Main motor | ||||
| Type | YRKK900-6 | |||
| Rated power | kW | 4200 | ||
| Output speed | r/min | 990 | ||
| Manufacture | TECO | |||
| Insulation grade | IP54 | |||
| href="javascript:void(0);" Rated voltage | kV | 10 | ||
| Rated frequency | Hz | 50 | ||
| Power factor (cosj) | 0.866 | |||
| Cooling mode | IC611 | |||
| Type of lubrication oil station | XRZ-25 | |||
| Oil pressure | MPa | 0.4 | ||
| Flow rate | L/Min | 25 | ||
| High speed coupling | ||||
| Type | No | |||
| Connecting method | Diaphragm flexible connecting | |||
| Qty | 1 | |||
| 7.2 Main gear box | ||||
| Type | MLX450 | |||
| Rated power | kW | 4500 | ||
| Gear ratio | 43.7 | |||
| Measuring temperature point for Input shaft | pcs | 2 | ||
| Vibrator(yes/No) | yes | |||
| Output speed | rpm | 22.6 | ||
| Transmission power | kW | 4500 | ||
| Thrust bearing | Plane shaft bush | |||
| Lubrication oil station | ||||
| Type | XGD-C250/1250 | |||
| High pressure pump | ||||
| Qty | 4 | |||
| Oil pressure | bar | 315 | ||
| Flow rate | L/Min | 250 | ||
| Motor | kW | 4×22 | ||
| Low pressure pump | ||||
| Oil pressure | bar | 4~6 | ||
| Flow rate | L/min | 1250 | ||
| Motor | kW | 2×22 | ||
| Volume of oil tank | m3 | 10 | ||
| Heater | number | 6 | ||
| Rated power | kW | 8×6 | ||
| Temperature detector | ||||
| Type | PT 100 | |||
| Temperature monitor | PLC Liquid touch screen | |||
| Type | TP277-6 | |||
| Manufacture | Nanjing high speed gear manufacturing Co., ltd. | |||
| 8 | Hydraulic system | |||
| Type | HY53-1000AI-W | |||
| Pressure (Normal/Max) | MPa | 8~12/16 | ||
| Flow rate ((Normal/Max) | l/min | 63/63 | ||
| Power (Normal/Max) | kW | /18.5 | ||
| Rated power | kW | 18.5 | ||
| Volume of oil tank | L | 1000 | ||
| Main hydraulic element | Italy ATOS | |||
| Control method | Long distance | |||
| 9 | Hydraulic system of roller | |||
| 8.1 Hydraulic cylinder of roller | pcs | 4 | ||
| 8.2 Hydraulic station of roller | pcs | 1 | ||
| 8.3 Roller swing cylinder | pcs | 1 | ||
| Type | Movable | |||
| 10 | Water injection of mill | |||
| Nozzle | pcs | 4 | ||
| 11 | Rotary air lock feeder | |||
| Type | ф1400x1500 | |||
| Quantity | pcs | 1 | ||
| Speed | rpm | 6 | ||
| Motor power | kW | 11 | ||
| 12 | Electrical control system | |||
| Low pressure control cabinet | Pcs | 2 | ||
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