The two-phase flow pulp pump adopts the principle of "relative suction and relative blocking" in the two-phase flow theory to carry out the hydraulic design of the pump,
So that the hydraulic performance of the pump flow parts conforms to the law of solid-liquid two-phase flow, thereby reducing the amount of pulp. The scour and wear of the body on the overflow parts greatly improves the working efficiency and service life of the pump.
Pulp pump application:
1. Paper industry: It is used for circulating transportation, lifting and pressurization of media in the industrial process of pulp and alkali recovery with a concentration below 6%;
2. Sugar industry: used to transport syrup with a concentration below 4% and a viscosity below 150mm2/s;
3. Urban sewage industry: used for circulating transportation, lifting and pressurization of media in sewage treatment process.
However, long-term use and incorrect use will cause the pulp pump to malfunction. Corrosion, wear and erosion are the common failure problems of the equipment.
The main reason for the wear and tear of the pulp pump is caused by cavitation, and how to solve this common failure is the key to improving the production and use efficiency of the equipment, and it is one of the important prerequisites for enterprises to improve production.
The pulp pump is corroded and worn. The wear parts: the volute of the pump body, the sealing ring, both sides of the flow channel, the temperature is normal, the corroded part of the volute is hollow and partially perforated, and the holes are 5mm*40mm and 10mm*40mm.
Because the pump is affected by the working environment, the problems of erosion, wear, cavitation and corrosion are more prominent, which has a serious impact on the operating cost of the enterprise.
And once the problem occurs, not only the pump efficiency will be greatly reduced, but the energy consumption will also be greatly increased.
At present, Soleil carbon nano-polymer material has a good application effect in the corrosion and wear repair of pulp pump, which not only effectively solves the problem of equipment corrosion and wear, but also prolongs the service time of the pump body.
It saves the cost of new pump casings for scale, and effectively reduces downtime and maintenance cycles.
According to different working conditions, select the appropriate material coating, and firmly adhere to the worn and corroded metal substrate through its own adhesive force, to withstand the required performance such as compression resistance, wear resistance, corrosion resistance, and smoothness.
Let's take a look at the process of repairing the corrosion and wear of the pulp pump:
1. Prepare relevant tools and materials;
2. Surface cleaning to remove pulp impurities;
3. Use sandblasting or electric tools to remove rust and roughen the repaired part;
4. Clean the polished metal surface with absolute ethanol;
5. Reconcile the SD3000 material until it is uniform without color difference, and then apply it on the repaired part;
6. Adjust the carbon nano-polymer wear-resistant material in proportion until it is uniform and has no color difference;
7. Fill the repaired part with material and compact it, pay attention to the control of the size of the repaired part and the matching size of the parts;
8. After the material is cured, brush SD7400 erosion-resistant material to improve the surface finish.
