Detailed application of vertical long axis suspended semi submersible sump pump in the lifting and transportation of acid washing wastewater collection tank

The vertical long axis suspended semi submersible sump pump, with its core characteristics of strong corrosion resistance, anti-wear, and deep pool direct extraction, has become the core selection for the lifting and transportation of high difficulty composite working condition wastewater in the scene of acid washing wastewater collection tank lifting and transportation. It is suitable for the lifting and transportation needs of the entire process of acid washing wastewater collection tank. The specific application details are as follows:
⛏️  Core lifting and transportation scenario of acid washing wastewater collection tank
·Deep pool low-level waste liquid direct extraction and lifting: Strong acidic wastewater containing a large amount of iron oxide scale and iron ions is directly extracted from the bottom of the underground acid washing wastewater collection tank at a depth of more than 6 meters. Customized extended shaft models can be started directly without pumping, suitable for the low-level liquid extraction requirements of large underground acid washing wastewater tanks.
·Collection tank to pre-treatment unit lifting and transportation: The acid washing wastewater in the collection tank is stably lifted and transported to the neutralization reaction tank, coagulation sedimentation and other pre-treatment processes, providing stable inlet flow rate and pressure to ensure the continuous and stable operation of subsequent wastewater treatment processes.
·Collection tank cleaning, emptying, lifting and conveying: During regular dredging and maintenance of the collection tank, residual acid washing waste liquid and bottom deposited iron oxide sludge can be completely drained without manual cleaning, greatly reducing the safety risks of cleaning operations.
·Emergency accident pool waste liquid lifting and transportation: As a supporting emergency pool waste liquid lifting pump for the acid washing production line, it can quickly extract a large amount of acid washing waste liquid that overflows in an accident state, avoiding safety and environmental accidents caused by the overflow of strong acidic waste liquid.
✅  Core advantages of scene specific adaptation
·Outstanding anti-corrosion and wear-resistant composite performance: The overcurrent components are made of fluoroplastic alloy, high chromium wear-resistant alloy, or duplex steel material, which can withstand the corrosion of strong acidic media and long-term erosion of iron oxide scale particles, and are suitable for the harsh working conditions of strong corrosion and high abrasion in acid pickling wastewater.
·Leak free safety guarantee: With no exposed mechanical seal design, it effectively prevents the leakage of strong acidic acid pickling waste liquid from the source, avoids the volatilization and diffusion of acid mist, and fully meets the safety and environmental protection requirements of the pickling workshop.
·Strong liquid extraction capability in deep pools: The length of the underwater insertion can be customized according to needs, and the deepest can be adapted to a pool of up to 20 meters for liquid extraction. There is no need to build a large underground pump room, greatly reducing the infrastructure investment of acid washing wastewater collection tanks.
·Strong anti clogging ability: The semi open impeller with bottom stirring blades can disperse the iron oxide scale sludge deposited at the bottom of the collection tank, avoiding sludge clogging and ensuring long-term continuous operation without jamming.
Key points for scene specific selection
·When transporting high concentration strong acidic acid pickling waste liquid, it is preferred to use overcurrent components coated with perfluoroplastics to avoid rapid corrosion and perforation of ordinary metal materials.
·When the medium contains a large amount of solid particles of iron oxide scale, the guide bearing must be equipped with an external clean cooling water lubrication system, and a hard alloy shaft sleeve should be selected to avoid particle wear and bearing failure.
·When the underwater depth exceeds 3 meters, intermediate support guide bearings must be installed according to specifications to ensure smooth operation of the long shaft and avoid excessive radial runout under high load conditions.
At present, the vertical long axis suspended semi submersible sump pump, which is suitable for the lifting and transportation of acid pickling wastewater collection tanks, has a mainstream flow rate coverage of 6.3~400m ³/h and a head of 5~80m. There are already a large number of mature implementation cases in the metallurgical and hardware acid pickling industries, fully meeting the strict requirements for lifting and transportation of acid pickling wastewater collection tanks.