●General Information
The bottom unloading device consists of bottom screw valve, bottom material separate box, pneumatic switch valve, electric flow control valve and material unload groove. It can be used in unloading cement and raw material powder at the silo's bottom. The bottom unload device could adjust automatically and unload uniformity. And it has reasonably structure, easy operation and at most three material outlet holes. There is side unload device to choose.
The pneumatic switch valve and electric flow control valve of the unloading device with German technology. Valve core and shell are made of 16 Mn steel. The valve core is chrome faced and the thickness is 10 μm increases its wear-resisting property. The valve core is sealed with the whole high quality wool felt. The degree of tightness of sealing box could be adjusted outside. The replacement of sealing box could pull out from bilateral valve body and no need to disassemble valve body. The laser cutting and machining of valve core's mouth and shell's cutting stock ensure the high precision of equipment's assembly.
Suction Flange and Discharge Flange, Boundary Dimensions
Code Type | A1 | A2 | A3 | m | n x e | M | N | L1 | L |
B250 | 340 | 330 | 235 | 100 | 1 x 100 | 10 | 20 | 345 | 760 |
B300 | 390 | 380 | 260 | 90 | 8 x 85 | 12 | 22 | 370 | 760 |
B400 | 490 | 480 | 330 | 115 | 2 x 110 | 12 | 22 | 420 | 760 |
B500 | 590 | 580 | 380 | 110 | 3 x 110 | 14 | 24 | 470 | 780 |
B630 | 730 | 720 | 455 | 110 | 4 x 115 | 16 | 30 | 540 | 780 |
●Technical Parameters
Type Part | B250 | B315 | B400 | B500 | B600 | Note | |
Pneumatic Switch Valve | Screw gate | 250x250 | 315x315 | 400x400 | 500x500 | 630x630 | |
Unload ability | 150t/h(max) | 220t/h(max) | 410t/h(max) | 550t/h(max) | 700t/h(max) | ||
Valve Core Mouth | Ω Shape or Triangle | Ω Shape or Triangle | Ω Shape or Triangle | Ω Shape or Triangle | Ω Shape or Triangle | Or η shape | |
Flow Area | 0.016m2 | 0.024m2 | 0.04m2 | 0.052m2 | 0.068m2 | ||
Blowing Rate | 13.5 m3/h | 16m3/h | 21m3/h | 27m3/h | 34m3/h | Pressure <8000pa | |
Cylinder | QGB-100x200-MP4 | QGB-100x200-MP4 | QGB-100x200-MP4 | QGB-125x200-MP4 | QGB-125x200-MP4 | ||
Air Consumption12m3/h | Air Consumption 12m3/h | Air Consumption 12m3/h | Air Consumption 17m3/h | Air Consumption 17m3/h | Pressure <0.6Mpa | ||
Solenoid Valve KD25-8220V | Solenoid Valve KD25-8220V | Solenoid Valve KD25-8220V | Solenoid Valve KD25-8220V | Solenoid Valve KD25-8220V | |||
Switch Time 1-2S | Switch Time 1-2S | Switch Time 1-2S | Switch Time 1-2S | Switch Time 1-2S | |||
Electric Flow control Valve | Range | 0-150t/h(max) | 0-220t/h(max) | 0-410t/h(max) | 0-550t/h(max) | 0-700t/h(max) | |
Valve Core Mouth | Ω Shape or Triangle | Ω Shape or Triangle | Ω Shape or Triangle | Ω Shape or Triangle | Ω Shape or Triangle | Or η shape | |
Flow Area | 0.016m2 | 0.024m2 | 0.04m2 | 0.052m2 | 0.068m2 | Pressure <8000pa | |
Blowing Rate | 13.5m3/h | 16m3/h | 21m3/h | 27m3/h | 34m3/h | Or by customer’s requirement | |
Electric Actuator | AS-25 | AS-25 | BS-60 | BS-60 | A+RS100 | ||
Output Torque 250Nm | Output Torque 250Nm | Output Torque 600Nm | Output Torque 600Nm | Output Torque 1000Nm | |||
I/O 4-20mA | I/O 4-20mA | I/O 4-20mA | I/O 4-20mA | I/O 4-20mA | |||
Total Time 30S | Total Time 30S | Total Time 30S | Total Time 30S | Total Time 30S | |||
Supply Voltage 220V50HZ | Supply Voltage 220V50HZ | Supply Voltage 220V50HZ | Supply Voltage 220V50HZ | Supply Voltage 220V50HZ | Or by customer’s requirement |