Sewage pump anti clogging performance why will be more and more valued? This mainly stems from two reasons: first, increased sewage disposal costs. Industrial enterprises are trying to reduce the amount of water consumption per unit of production, which makes the content of solid substances and fiber in sewage become higher and higher. Two sewage pump more and more used the means of energy conservation, is the speed adjustment drive, and speed regulation can not guarantee that the sewage pump will not plug.
Aiming at the frequent plugging machine impurity pump impeller, the initial operation of the equipment used by each block will clear, not overnight cleaning method. Although this avoids downtime, but often remove the pump body, causing the pump mouth ring and other parts of the wear and tear at the same time each time a large amount of manpower plugging. In order to change this situation, add carbon steel sewage box at the pump inlet pipe, and 45. Dip angle。 The filter screen is used to filter impurities again to avoid clogging. Teams and groups on the sewage resistance for 1 ~ 3 times a month.
After the implementation of this program has received a certain effect, human consumption eased. At the bottom of the dirt blocking box has a vent valve, but there are still dead. Part of the sewage and impurities in the dead space accumulation, easy to cause personnel in the clean-up of a slight gas poisoning injury, is not conducive to safety operations.
Sewage pump rotor blade morphology is divided into two types, namely, vortex blades and cutting blades, the use of these two forms of the most widely used blades. Swirl impeller is not transported in the medium movement, according to the principle of fluid dynamics need to pump the media into the pump cavity, the pump medium flow from the impeller. In this way, the pumping liquid medium long fiber or solid substances are also pumped out. The cutting blade can be larger bulk solid material cut, thus no longer blocked.
1.Ensure safe operation of key equipment :
Catalyst metering pump is mainly used for catalyst injection, prompting oligomer in the polycondensation kettle, the final polycondensation kettle polycondensation reaction. Polyester process requires the catalyst must be injected according to a certain proportion, and stop time should not exceed 15rain. Otherwise it will cause the decrease of viscosity, product quality etc.. In order to ensure the smooth operation of catalyst pump, some measures must be taken.
2.Replace lubricants and wear parts regularly :
The main moving parts of the catalyst metering pump are worm, worm gear, slide block, fixed piston, etc.. The wear of these components will directly lead to reduced pump flow or not on the amount, the current solution is to regularly replace lubricants, wear parts and regular cleaning hydraulic chamber.
3.Strict catalyst metering pump operating procedures :
Catalyst metering pump start-up and shutdown should be strictly in accordance with the requirements of operation. When starting, zero output open pump, until the pump outlet has a certain pressure before the pressure plate nitrogen. Avoid nitrogen caused by diaphragm deformation, prevent diaphragm rupture; improve pump output, to slow; stop pump, should also slow down the output of the pump.
4.To enhance the maintenance of the pump :
The pump in operation during the regular inspection, focus on examination of lubricating oil level and pump outlet pressure, sound pressure, nitrogen buffer tank. Periodically pump the diaphragm, nitrogen buffer tank replacement, in order to effectively prevent two pumps at the same time damage caused by catalyst stop accident occurred.
