1. Project Background

The total length of the underground drainage network in the central urban area of Shanghai exceeds 12,000 kilometers. With the arrival of the rainy season, the siltation thickness of some pipe sections exceeds 30% of the pipe diameter. Traditional manual silt removal is inefficient, has a significant impact on traffic, and poses a high risk of secondary pollution. The Xi 'an KOSUN KD-40 sludge-water separation system is specially designed for vehicle-mounted pipeline dredging scenarios. It is compact in size and easy to move, allowing for quick on-site operation and significantly enhancing dredging efficiency. It is particularly suitable for sludge treatment in urban underground pipe networks, municipal engineering, and other fields.

2.Core Equipment

KD-40 sludge-water separation system: Processing capacity 40m³/h, separation particle size over 0.15mm, solid phase removal rate > 80%.

LS752 Double-layer slat vibrating screen: Excitation force 6G, screen life >5000 hours, slat design to prevent fiber entanglement.

3. Process Flow

Sewage suction truck suction → vehicle-mounted coarse screen →KD-40 cyclone sand removal →LS752 high-frequency dewatering → Clear water is discharged back into the pipeline network. The moisture content of the mud cake is ≤35%, which can be directly sent to the green composting or brick factory.

4. Project Effectiveness

The equipment is ready to use upon arrival, with immediate separation of sludge and water, and the sludge cakes can be transported out to meet environmental protection standards.

On-site labor costs have been reduced by 75%.

The external transportation volume of mud cakes decreased by 40%, and the comprehensive dredging cost dropped by 38%.

The drainage capacity during the rainy season has increased by 25%, and complaints about urban flooding have decreased by 90% year-on-year.

5.Customer Evaluation

The owner customer in Shanghai pointed out that the KD-40 system is equipped with a vehicle-mounted silt removal system, truly achieving "stop and go" mobile silt removal, solving the long-standing traffic organization problem. The stability of the sludge-water separation index provides real-time and reliable data support for the Shanghai Smart Drainage Platform.

6. Experience Summary

Modular and lightweight design is the key to the rapid response of narrow urban blocks.

Double-layer slit screen mesh performs exceptionally well for complex waste such as plastic bags and fibers, reducing downtime for maintenance.