batte high temperature melt pump
High-temperature melt pump is high temperature and high viscosity polymer melt delivery, pressurization and melt measurement is essential equipment. Compared with other types of pumps, the high-temperature melt pump has the advantages of compact structure, reliable operation, low energy consumption, high volumetric efficiency, small shear effect on the melt, stable flow at high viscosity and high pressure, and no outlet pressure fluctuation. The pump has its unique advantages and the key role in the process, making it play an irreplaceable role in polyester production.
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First, High-temperature melt pump structure and working principle
Melt gear pump pump housing, front and rear side cover, gear shaft, sliding bearings and shaft seal form. Melt gear pump is a positive displacement pump, work rely on the main and driven gears caused by changes in the work volume changes to transport the melt. Working volume by the pump body, gear tooth groove and the function of the side plate with the composition. When the gear rotates, the melt enters the tooth grooves of the two gears of the suction chamber. As the gear rotates, the melt is brought into the discharge cavity from both sides, and the gears mesh again to make the melt in the tooth grooves to be squeezed out Cavity, pressure delivery to the outlet pipe. As soon as the pump shaft is turned, the gear presses the melt down to the outlet side so that the pump outlet can reach very high pressure with little or no effect on flow and discharge pressure.
High-viscosity gear pump gear are common spur, helical, herringbone, helical teeth, tooth profile are mainly involute and arc type. Usually small gear pump to use more involute spur gear, high temperature gear pump often use variable gear, conveying high viscosity, high pressure melt polymer melt more use of involute helical gears. Gear and shaft made of one, its rigidity and reliability is higher than gear and shaft separately manufactured gear pump. Foreign low-pressure gear pump gear is often used square structure, that gear tooth width equal to the addendum circle diameter. The high-pressure occasions used in high-viscosity gear pump gear tooth width less than its tip diameter, which is to reduce the gear radial compression area, reduce gear, bearing load.
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Pump Model
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Pump Volume (CC)
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Capacity (L/H)
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Driven Power (kw)
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Heating Power (kw)
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Working Temperature
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Working Pressure
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ZB-0.1
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0.1
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0.05-0.2
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0.2
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1
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≤400℃(750°F)
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Outlet Pressure: ≤ 350Mpa
Outlet Differential Pressure: ≤ 275bar
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ZB-0.5
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0.5
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0.25-1
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0.37
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1
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ZB-1
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1
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0.5-2
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0.55
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1
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ZB-2
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2
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1-4
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0.75
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1
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ZB-5
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5
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2.5-10
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1.1
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2
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ZB-10
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10
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5-20
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1.5
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2
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ZB-20
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20
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10-40
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2.2
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2
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ZB-31.5
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32
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16-60
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3
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2
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ZB-50
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50
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25-100
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4
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3
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ZB-100
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100
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50-200
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5.5
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4
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ZB-150
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150
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75-300
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7.5
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5
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ZB-90/90
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200
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100-400
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11
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6
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ZB-100/100
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250
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125-500
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15
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8
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ZB-100/100
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315
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150-300
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18.5
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8
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ZB-115/115
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500
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200-1000
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22
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12
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ZB-130/130
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800
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400-1600
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30
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15
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ZB-160/160
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1200
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600-2400
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37
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20
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ZB-180/160
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2500
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1250-5000
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55
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20
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ZB-180/180
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3200
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1600-6400
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55
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24
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ZB-224/224
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6000
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3000-6000
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75
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30
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