Sand and water separator

Product Overview

This SF spiral sand-water separator is essential post-settling matching equipment for Front-end treatment of grit and sludge separation and core component of complete Wastewater grit sludge separating equipment, standard supporting unit of full-set Integrated grit removal pretreatment machine and indispensable finishing facility for full closed-loop Sand washing & sludge separation system, perfectly docked with outlet pipeline of Sewage inlet grit sediment separation unit to realize solid-liquid separation of sand-water mixture from grit chamber. Covering SF260~SF460 standard series, it adopts shaftless spiral lifting structure to finish grit dewatering while draining separated wastewater back to pretreatment tank.

Features

• Standard U-trough width ranging 260~460mm with max treatment capacity up to 155m³/h, precisely matched with different model swirl grit removal machine of Sewage inlet grit sediment separation unit and whole Front-end treatment of grit and sludge separation pipeline layout
• Stable low rotating speed around 5rpm of shaftless spiral reduces grit abrasion and improves natural dewatering effect, guaranteeing qualified dry sand output for complete Sand washing & sludge separation system
• Effective separation particle size ≥0.2mm to intercept fine grit missed by front grit chamber, optimizing overall grit removal rate of full Integrated grit removal pretreatment machine and Wastewater grit sludge separating equipment
• Optimized material matching: 304/316 stainless steel tank body, wear-resistant 16Mn spiral blade and nylon lining plate, outstanding anti-abrasion & anti-corrosion performance adapting long-term grit friction under Front-end treatment of grit and sludge separation harsh working condition
• Built-in internal overflow weir with drain channel and bottom emptying outlet realizes automatic water overflow and regular tank emptying, simplifying daily maintenance of full Sand washing & sludge separation system
• 25° inclined spiral conveying layout enables progressive in-transit grit dewatering, cutting residual moisture of discharged sand to reduce subsequent transportation burden of downstream processing equipment.

Technical Parameters

Specification series:SF260~SF460; U-type trough width B:260mm~460mm; Max allowable handling flow:155m³/h; Standard spiral rotating speed:approx 5rpm; Minimum effective separation particle:≥0.2mm; Blade structure:shaftless integral spiral; Liner material:wear-resistant nylon; Main body material:304/316 stainless steel, spiral blade in 16Mn alloy; Main composition:settling trough, inlet/outlet flange, internal overflow weir with drain channel, section steel support, U-trough with wear lining, shaftless spiral and access-hole cover plate; Drive mode:gear motor flange direct drive; Working principle: incoming sand-water mixture settles inside trough, overflow wastewater drains out while settled grit lifted upward by inclined spiral for further dewatering before top discharging.

Customization Service

Custom non-standard U-trough width beyond 260~460mm range and oversize flow capacity matching oversized Front-end treatment of grit and sludge separation and Wastewater grit sludge separating equipment project; adjust spiral rotating speed and inclined angle according to raw sand moisture and particle composition from upstream Sewage inlet grit sediment separation unit; switch tank material between 304 and 316 stainless steel for high-corrosion industrial wastewater of customized Integrated grit removal pretreatment machine; add customized connecting flange dimension to realize seamless pipeline docking with different grit chamber outlet of full Sand washing & sludge separation system; configure extra bypass drain valve for special site overflow adjustment requirement.

Production Process & Quality Control

1. Step1 Stainless steel and 16Mn alloy raw material anti-abrasion & anti-corrosion inspection before U-trough and spiral blanking forming for Wastewater grit sludge separating equipment spare parts
2. Step2 Precision cold forming of shaftless spiral blade, integral welding of stainless steel tank body and section steel support frame for Integrated grit removal pretreatment machine matched facility
3. Step3 Nylon lining plate inlay installation, overflow weir and flange fitting assembly, gear motor drive connection debugging for Sewage inlet grit sediment separation unit supporting separator
4. Step4 Full-flow hydraulic feeding test and grit separating efficiency inspection to verify stable running of complete Sand washing & sludge separation system and whole Front-end treatment of grit and sludge separation
5. Step5 Outer anti-rust finishing and export wooden case packaging for finished sand water separator.

Customer Testimonials and Reviews

• European Wastewater Treatment Contractor: This SF spiral separator is essential downstream matched equipment of our full Front-end treatment of grit and sludge separation, reliable fine grit separation greatly improves total grit removal efficiency of whole Wastewater grit sludge separating equipment and Sand washing & sludge separation system.
• Southeast Asia Sewage Plant Purchaser: Standard series size perfectly matches our existing Integrated grit removal pretreatment machine and upstream Sewage inlet grit sediment separation unit for full automatic grit disposal line.
• Middle East Environmental Equipment Distributor: Custom SF sand water separator has become standard post-grit-chamber supporting product for local municipal wastewater tender projects with complete Front-end treatment of grit and sludge separation solution.

FAQ

• Q: What is the minimum effective separation particle size of this separator?
  A: Not less than 0.2mm to trap fine grit for full Wastewater grit sludge separating equipment and Front-end treatment of grit and sludge separation.
• Q: What’s the standard rotating speed of shaftless spiral blade?
  A: Around 5rpm low-speed operation to realize gradual grit dewatering during upward transportation of Sand washing & sludge separation system.
• Q: What are the core difference of main material for tank and spiral?
  A: Tank 304/316 stainless steel, spiral blade wear-resistant 16Mn alloy, matched nylon liner for anti-friction in Integrated grit removal pretreatment machine.
• Q: How does it finish grit dewatering besides solid-liquid separation?
  A: 25° inclined spiral lifting enables natural water dripping during conveying to cut sand moisture for follow-up treatment of Sewage inlet grit sediment separation unit.