KSMR-350 Trenchless Slurry Recovery System

As the mid-range mainstay model of the KSMR Series, the KSMR-350 Trenchless Mud Recovery System is characterized by “balanced capacity-efficiency, flexible adaptability, and outstanding cost-performance”. It precisely bridges the compact KSMR-200 and the large-scale KSMR-1000, specifically designed for medium-distance, medium-diameter trenchless construction scenarios—making it the ideal equipment that balances efficiency and cost.

I. Core Performance Parameters

Based on the parameter gradient logic of the KOSUN product series and derived from mid-range engineering requirements, the core performance of KSMR-350 is as follows:

II. Core Functions & Technical Highlights

1. Balanced Integrated Treatment Process
Inherits the series’ core functions and optimizes them for medium-volume demands, achieving efficient closed-loop treatment while controlling equipment complexity:

• Pre-treatment Optimization: Features a single-layer widened high-frequency shale shaker with 3.2 m² screen area (50% of the 1000 model), achieving 95% interception efficiency for particles ≥74 μm while balancing capacity and size.
• Deep Purification Configuration: Equipped with 10 standard-sized polyurethane cyclones using symmetric single-inlet structure, stabilizing centrifugal force at 800G (between 200 model’s 600G and 1000 model’s 1200G), with fine particle separation efficiency 25% higher than the 200 model.
• Semi-automatic Circulation Control: Integrated semi-automatic mixing system with real-time monitoring via inline densitometer, supporting manual/automatic dual-mode replenishment with 95% mixing uniformity, balancing intelligence and equipment cost.
• Dual-level Linked Control: Main storage tank equipped with high-precision float level gauge, buffer tank linked with alarm device, effectively preventing overflow risks under medium-to-high flow conditions.

2. Structure Design Adapted for Medium-Volume Projects

• Semi-modular Combined Architecture: Equipment divided into “shale shaker + cyclone” integrated module and “storage + power” combined module, requiring only 1 heavy-duty truck for transport, improving relocation efficiency by 50% compared to the 1000 model.
• Lightweight Load-bearing Design: Tank made of Q235B high-strength steel with 8 mm wall thickness (balancing strength and weight), bottom equipped with adjustable support feet for suburban non-hardened ground construction, service life exceeds 12 years.
• Easy Maintenance Design: Cyclones use clamp + flange combined connections; shale shaker equipped with mechanical tensioning mechanism; screen replacement takes approx. 30 minutes, saving 40% maintenance time compared to conventional equipment, with maintenance difficulty lower than the 1000 model.

3. Safety, Environmental Protection & Operational Assurance

• Low-noise Operation Optimization: Shale shaker adopts rubber spring shock absorption design, controlling operating noise below 84 dB (between 200 model’s 85 dB and 1000 model’s 82 dB), compliant with suburban construction noise standards.
• Basic Safety Protection: Electrical system rated Exd II CT4 explosion-proof, equipped with temperature and level dual interlock protection, automatic alarm and prompt when abnormalities occur, certified by API, CE, ISO 14001 series.
• Basic Environmental Compliance: Although not integrated with drying module, equipped with drill cuttings dewatering screen interface to connect external equipment for reducing cuttings moisture content below 30%, achieving 40% solid waste reduction and meeting basic requirements of Technical Specifications for Environmental Protection in Trenchless Construction.

III. Typical Applications & Case Adaptability

1. Core Applicable Project Types

• Medium-distance horizontal directional drilling: Suburban natural gas branch lines, water supply mainlines (length 800–3,000 m), township road crossing projects and other medium-distance construction.
• Medium-diameter pipeline construction: Municipal sewage pipes (diameter 500–1,200 mm), communication cable conduit installation and other medium-flow slurry demand scenarios.
• Conventional geological energy projects: Shallow coalbed methane extraction, small-scale shale gas drilling and other conventional geological slurry treatment, as well as medium-sized mining area tunnel construction.

2. Scenario Adaptability Advantage
Taking a suburban water supply mainline crossing project (length 2,000 m, pipe diameter 800 mm) as an example: The KSMR-350 meets slurry demands for 150 m of daily pipeline installation through its 80 m³/h processing capacity, achieving 91% mud recovery rate. Per project, it reduces fresh mud procurement by 400 m³, saving approximately CNY 140,000 in costs. Simultaneously, by connecting an external dewatering screen to treat drill cuttings, it reduces solid waste transport volume by 300 tons, saving disposal fees of CNY 60,000.

IV. Differentiated Advantages vs. Series Models & Competitors

V. Operating Cost & Benefit Analysis

Taking a single 2,500 m medium-diameter (800 mm) pipeline project as an example:

• Material Cost: 91% mud recovery rate reduces fresh mud procurement by 600 m³, saving CNY 210,000 in costs.
• Labor Cost: Semi-automatic control requires 3 operators, reducing 2 on-site personnel compared to traditional systems, saving CNY 18,000 in labor costs.
• Environmental Cost: External dewatering screen treats drill cuttings, reducing solid waste transport volume by 450 tons, cutting disposal fees by CNY 90,000 and mitigating risk of environmental penalties.
• Overall Benefit: Direct cost savings of CNY 318,000 per project, with 20% improvement in construction efficiency and project duration shortened by 20 days.