Rosin pump selection
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The factory uses rosin in its production process, with a temperature of 180–220°C. The material is pumped from the storage tank to the production floor on the third floor; there is a height difference of 30 meters between these two locations, and a flow rate of around 15 m/h is required. Originally a screw pump was used; over time, the wear of the screws caused an increase in the clearance, which reduced the pumping speed. Now we are considering replacing the pump set. Do you have any good recommendations, dear Haiyou? Equipment manufacturers are welcome to add QQ461256462
Choosing a twin-screw pump shouldn’t be a problem; I think it’s the manufacturer’s fault – they didn’t take into account the impact of temperature rise on the rotors and didn’t leave enough clearance. With too little clearance, the two rotors experience direct wear due to expansion caused by the increase in temperature. If the problem with your current pump is simply a slow material pumping speed, increasing the pump’s rotational speed will help improve that speed; you can use a small frequency converter for this purpose