Central Drive Sludge Scraper Thickener_

Product Overview

This Central Drive Sludge Scraper Thickener including ZXG and NZS series is core front-end facility of Complete sludge treatment equipment and essential constituent of integrated Integrated sludge dewatering system, standard matching equipment for full-set Full set municipal sludge processing machine and pre-thickening unit before Industrial sludge thickening & dewatering equipment, also ensures continuous stable raw sludge supply for subsequent Automatic sludge dosing & conveying unit. It is designed for automatic sludge collection and sludge concentration inside primary sedimentation tank, secondary sedimentation tank and sludge thickener tank with central-feed peripheral-discharge layout, full suspension structural design realizes circular rotary scraping to gather tank-bottom sludge toward central sludge sump.

Features

• Wide applicable tank diameter ranging Φ3000~Φ40000mm and tank depth 4000~8000mm, flexible customization fits diversified civil design of Complete sludge treatment equipment and Integrated sludge dewatering system circular tank layout
• Controllable peripheral linear speed at 2~3m/min balances scraping efficiency and structural abrasion, maintaining consistent sludge concentration for stable feeding of downstream Full set municipal sludge processing machine and Industrial sludge thickening & dewatering equipment
• Dual-type configuration: standard ZXG scraper and NZS thickener with extra equidistant angle steel thickening racks, thickening fence improves sludge concentration effect to reduce volume load of follow-up Automatic sludge dosing & conveying unit
• Two optional top bridge construction: concrete bridge or all-steel working bridge to adapt different site construction condition of municipal sludge treatment project
• Customized auxiliary fittings allocation: primary tank & thickener equipped with effluent weir plate only while secondary sedimentation tank fitted with baffle and scum hopper to remove floating dross and optimize outlet water quality for whole Complete sludge treatment equipment
• Compact direct-coupling drive design available for small-size tank below Φ6000mm to cut transmission loss and simplify maintenance of Integrated sludge dewatering system.

Technical Parameters

Applicable Scenario: Automatic sludge scraping & concentration for primary sedimentation tank, secondary sedimentation tank and sludge thickener in municipal wastewater plant; Available tank diameter:Φ3000mm~Φ40000mm; Tank depth H:4000mm~8000mm; Standard peripheral linear speed:2~3m/min; Core function: scrape tank-bottom settled sludge to central collecting pit and realize preliminary sludge thickening; Overall structure: full suspension type with central feed peripheral outflow; Main composition: guardrail, working bridge, central drive unit, flow stabilizing barrel, transmission shaft, pull rod, small scraper, main scraper and scraping arm; NZS thickener extra parts: equidistant angle steel thickening rack; Auxiliary accessories: effluent weir plate for primary tank/thickener, baffle + scum hopper for secondary sedimentation tank; Drive layout: direct coupling of reducer and shaft for tank diameter less than 6m, gearbox transmission for large-diameter tank.

Customization Service

Custom non-standard tank diameter and depth beyond standard scope matching special circular tank civil drawing of Complete sludge treatment equipment and Integrated sludge dewatering system; adjust peripheral rotating speed to modify sludge outlet concentration satisfying feeding parameter of Full set municipal sludge processing machine and Industrial sludge thickening & dewatering equipment; select ZXG pure scraping or NZS thickening version according to on-site sludge concentration demand for matched Automatic sludge dosing & conveying unit; switch steel or concrete working bridge structure based on plant construction budget; configure tailored scum baffle and dross hopper exclusively for secondary sedimentation working condition.

Production Process & Quality Control

1. Step1 Raw steel material anti-corrosion and mechanical performance test before bridge, scraping arm and scraper blanking forming for Complete sludge treatment equipment spare parts production
2. Step2 Precision machining of central drive assembly and transmission shaft, integral welding of scraping arm and blade assembly; additional thickening rack fabrication for NZS thickener variant
3. Step3 Complete suspension structure assembly and on-site installation matching circular tank foundation for Integrated sludge dewatering system supporting equipment
4. Step4 Full-cycle circular running test and sludge gathering efficiency inspection to verify stable supply for downstream Full set municipal sludge processing machine and Industrial sludge thickening & dewatering equipment
5. Step5 Anti-rust surface finishing and export wooden case packaging for qualified equipment cooperating with Automatic sludge dosing & conveying unit.

Customer Testimonials and Reviews

• European Municipal Wastewater Contractor: This central drive scraper thickener is irreplaceable pre-concentration equipment of our full Complete sludge treatment equipment, well-controlled sludge density greatly reduces operation pressure of follow-up Industrial sludge thickening & dewatering equipment and whole Integrated sludge dewatering system.
• Southeast Asia Sewage Plant Purchaser: Optional pure scraping or thickening two models perfectly match different tank requirements of our complete Full set municipal sludge processing machine production line and matched Automatic sludge dosing & conveying unit.
• Middle East Environmental Equipment Distributor: Custom ZXG/NZS central drive unit has become standard circular tank supporting product for local municipal sludge treatment tender projects with full-set Complete sludge treatment equipment.

FAQ

• Q: What two product types are contained in this series?
  A: ZXG central drive sludge scraper and NZS sludge thickener with extra thickening rack for Complete sludge treatment equipment and Integrated sludge dewatering system.
• Q: What is the standard peripheral linear speed range?
  A: Regular peripheral speed is 2~3m/min to guarantee steady sludge delivery to Full set municipal sludge processing machine and Industrial sludge thickening & dewatering equipment.
• Q: What structural difference between primary tank and secondary tank matching accessories?
  A: Primary/thickener tank only fits effluent weir, secondary tank adds baffle and scum hopper to eliminate surface floating residue for stable inlet of Automatic sludge dosing & conveying unit.
• Q: How is the drive configured for small-diameter tank?
  A: Reducer directly couples transmission shaft for tank diameter below Φ6000mm to simplify drive structure of Complete sludge treatment equipment.