ERTONG MAKE

Overview The 500,000 TPY (tons per year) Industrial Salt Washing Plant is a turnkey solution designed for high‑capacity processing of raw rock salt into purified, market‑ready industrial salt. Developed by Gansu Ertong Machinery Manufacturing Co., Ltd., this washing plant integrates robust conveying, crushing, washing, dewatering, screening, and stacking equipment to achieve a continuous annual output of 500,000 tons of clean, uniformly graded salt. The complete line is engineered for reliability, ease of maintenance, and minimal environmental impact, making it an ideal choice for salt producers, chemical plants, and chemical suppliers seeking to upgrade or expand their salt processing capabilities. Process Flow & Plant Layout

• Raw Salt Reception & Storage − Ground Hopper: Single bin measuring 5 m×5 m×4 m, constructed of 8 mm steel plate on 200 mm×200 mm H‑beam supports. Designed for corrosion resistance and structural integrity under harsh saline environments
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• Feeding & Primary Crushing − Transverse & Longitudinal Screw Feeders (1 set): Main screw φ700 mm, auxiliary screw φ500 mm; lengths sized to meter feed flow of up to 200 t/h. Variable‑frequency drive (30 kW) ensures smooth, adjustable throughput. Screw housings of 12–14 mm plate thickness with F‑class insulation and IP54 protection
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• Vertical Elevation − Plate‑Chain Bucket Elevator (2 units): GKAT127 gearbox with 22 kW motor; bucket capacity 0.089 m³, pitch 0.5 m; capable of elevating salt to 9 m with minimal spill and dust, chain life exceeding 5 years under continuous operation
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• Salt Washing − Spiral Salt Washers (2 sets): 10 m long, 15° incline; diameter φ1000 mm; throughput 200 t/h per unit. Housings 10 mm thick; internal screw designed for self‑cleaning action, ensuring effective separation of impurities under high‑flow water
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• Dewatering & Grade Separation − Inclined Dewatering Screen (2 units): Rod diameter φ20 mm, spacing 16 mm; fitted with water spray manifold to facilitate drainage of wash water. − Vibrating Screen (2 units): Model YZKR2445; single deck; feed size <250 mm; frequency 16–16.33 Hz; dual amplitude 6–9 mm; 2×15 kW stainless‑steel construction ensures precise grading and water removal
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• Product & Waste Conveying − Main Finished‑Salt Belt Conveyors (2 units): Belt width 1,000 mm; speed 1.6 m/s; length 200 m; capacity 50 t/h; driven by 75 kW motor with safety correction rollers, tail tensioning car, and herringbone‑pattern rubber belt for anti‑slip performance
• . − Waste Salt Belt Conveyors (2 units): Belt width 650 mm; length 15 m; electrically driven drums of 11 kW; equipped with electronic belt scales for accurate waste quantification
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• Material Handling & Stacking − Special Car Dumper (2 units): Traversing discharge cars operable along conveyor frames; enables centralized unloading at any mid‑belt location. − Crawler Stacker (1 unit): 800 mm belt; 2.5 m/s travel speed; volumetric capacity 200 m³/h; hydraulic and electric controls for variable stacking height and rotation
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Key Technical Parameters

Item	Specification
Annual Capacity	500,000 tons per year
Ground Hopper	5 m×5 m×4 m; 8 mm steel; 200 × 200 mm H‑beam support
Screw Feeder Motors	22 kW (main), 15 kW (auxiliary); Variable frequency drive
Elevator Motor	22 kW; buckets 0.089 m³; H=9 m
Washer Dimensions	φ1000 mm×10 m; 200 t/h capacity
Dewatering Screen	φ20 mm rods; 16 mm spacing
Vibrating Screen	YZKR2445; single deck; 16.33 Hz; 6–9 mm amplitude; 2×15 kW
Main Belt Conveyor	1,000 mm×200 m; 1.6 m/s; 75 kW
Waste Conveyor	650 mm×15 m; 1.6 m/s; 11 kW; electronic belt scale
Staker	800 mm; 2.5 m/s; 200 m³/h; hydraulic rotation 0.25 rpm
Design Environment	Altitude ≤ 280 m; Avg. temp. 30 ℃; high humidity; corrosive
Standards Compliance	GB10595, GB987‑996, JB2647, GB4208, GB14784, etc.

All mechanical drives use industry‑standard gearboxes (e.g., BW7‑series, GKAT) and motors from Ningxia or Wannan manufacturers, selected for ≥ 120% of peak torque to ensure reliable startup and full‑load performance. All welded structures undergo rigorous testing to guarantee straightness (≤ 5 mm/25 m for frames; ≤ 20 mm/10 m for belts) and corrosion resistance via protective coatings . Material & Manufacturing Standards

• Base Materials: Carbon steel (16Mn, 20G) for structural frames and screws; 304 stainless steel for wet zones.
• Surface Treatment: Anti‑rust primer and topcoat per buyer’s specification; labelling per JB8.
• Tolerances & Quality: Fabrication to GB1184, GB/T1804; noise levels below limits of GB12348; packaging per JB/T2647.
• Certification & Inspection: All purchased components carry manufacturer certifications and pass in‑house QA; non‑conforming parts are rejected. Factory and site trials confirm compliance before handover
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Automation & Control An optional PLC‑based control system enables:

• Real‑time monitoring of feed rates, motor loads, belt speeds, and water flow.
• Variable speed drives on feeders, washers, and conveyors for optimized throughput.
• Alarm functions for overload, belt misalignment, and water leakage.
• Data logging for traceability and performance analysis.

This “Material Proportioning & Microcomputer Control System,” developed in cooperation with Aalborg (Denmark), was provincially accredited as a new product and delivers enhanced operational efficiency with minimal manpower requirements . Performance Features

• High Throughput & Efficiency: Designed for continuous operation at 200 t/h per washer, ensuring annual capacity of 500,000 t with ≥ 95% uptime.
• Energy Saving: Low chain speeds, gravity‑aided feeding, and high‑efficiency motors reduce power draw by up to 30% compared to conventional designs.
• Minimal Maintenance: Robust weldments, sealed bearings, and easy‑access modules cut maintenance downtime; estimated MTBF > 30,000 hours.
• Environmental Protection: Closed‑circuit water recirculation, mist suppression, and enclosed conveyors minimize dust and wastewater discharge.
• Safety & Noise Control: All drives include overload, short‑circuit, and phase‑loss protection; noise levels < 85 dB at 1 m from equipment
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Market Positioning & Applications Positioned at the forefront of industrial salt processing, this 500 KT/Y plant targets:

• Large‑Scale Salt Mines seeking to upgrade from manual, batch operations to fully automated continuous lines.
• Chemical Manufacturers requiring consistent high‑purity salt feedstock for chlorine, soda, and specialty chemicals.
• De‑icing & Water Treatment Suppliers demanding granular salt with strict grading and low free moisture.

Its modular design allows phased expansion and integration with upstream crushing or downstream packaging systems, delivering a future‑proof solution for diverse salt industry segments. Delivery & After‑Sales Service

• Delivery Lead Time: 3 months upon receipt of advance payment.
• Packaging & Transport: Conforms to JB/T2647; sensitive components in sealed crates; all parts preservatively treated for 6-month outdoor storage.
• Installation & Commissioning: Factory technicians dispatched for on‑site assembly, alignment, and trial runs; any deviations due to manufacturing are rectified at no extra cost.
• Warranty & Support: One‑year trouble‑free operation guarantee; technical support available 24/7 with on‑site service within 24 hours of notification
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Conclusion The 500,000 TPY Industrial Salt Washing Plant represents a sophisticated integration of proven conveying technologies, precision washing platforms, and intelligent controls—offering salt producers an unmatched combination of capacity, quality, and cost‑effectiveness. Whether expanding existing facilities or establishing new production lines, this turnkey solution delivers reliable performance, minimal environmental footprint, and robust after‑sales support, ensuring a rapid return on investment and a competitive edge in the global salt market.