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Bucket oil skimmer, capacity 20 m³/h (Technical supply specification)


1. General Information (Operating Conditions)

The bucket-type skimmer operates reliably under the following marine conditions:

  • Ambient air temperature: -10 °C to +40 °C.
  • Permanent heel: up to 5° to any side.
  • Permanent trim: up to 2° forward or aft.
  • Wind pressure: max. 400 Pa.
  • Shipboard vibration.
  • Intermittent sea water splashing.

2. Purpose

Designed for stationary oil recovery operations: during ice-free periods from boom-enclosed water surfaces, and during ice periods from open water between ice floes.

Bucket-Type Skimmer Side View Dimensional Drawing (Operating Position)

Bucket-Type Skimmer Side View Dimensional Drawing (Operating Position)

Bucket-Type Skimmer Side View Dimensional Drawing (Operating Position)

Bucket-Type Skimmer Side View Dimensional Drawing (Stowed Position)

Bucket-Type Skimmer Side View Dimensional Drawing (Stowed Position)

Bucket-Type Skimmer Side View Dimensional Drawing (Stowed Position)

About

Marine Oil Spill Response: Advanced Open-Water Recovery Systems

In challenging environments like the North Atlantic or Arctic oceans, managing heavy crude oil spills requires rapid response to prevent critical environmental damage. During these operations, specialized deck machinery is essential. The bucket-type oil skimmer, engineered by Izhora Hydrosystems, represents a highly technical solution for high-viscosity oil recovery.

Engineering for Extreme Marine Environments

Oil Spill Response (OSR) operations must proceed effectively under severe environmental loads. Standard oil skimmers often fail due to continuous sea water splashing, high shipboard vibration, hull inclination, and severe wind pressure.

Ice-covered waters present additional technical challenges. When spilled oil mixes with slush and ice floes in open water channels, standard suction or weir-type recovery systems frequently clog and fail. Collecting high-viscosity oil at ambient air temperatures down to -10 °C requires robust structural design and mechanical handling capable of processing heavy, semi-solid hydrocarbons.

Mechanical Recovery Principle: Engineering Design

The equipment utilizes a combined mechanical and hydraulic operating principle. The bucket-type skimmer is suspended from a marine crane boom to interface directly with the oil slick. Efficiency is achieved through a built-in brush-disc shaft; rotating brushes recover oil from the water surface, and dedicated scrapers discharge it directly into the steel collection hopper.

The hopper houses the core component of the system: a heavy-duty screw pump. Engineered for demanding operations, the pump features a water injection system to manage high-viscosity oil. Injecting water into the discharge line creates an annular water jacket that significantly reduces friction losses, enabling the transfer of heavy oil products to the vessel’s cargo tanks at a rated flow of 20 m³/h.

Hazardous Area Engineering and Operational Features

Safety aboard tankers and offshore supply vessels is critical. Consequently, all electrical equipment features IP56 ingress protection, and the entire system complies with explosion-proof and intrinsically safe design standards. This configurations ensures safe operation in high gas-vapor concentration areas by mitigating electrical ignition risks.

The operator remains in a safe zone, using a portable remote control unit to ensure precise hopper positioning and variable pump speed adjustment. The equipment operates reliably with standard AUP hydraulic fluid. For efficient deck management, the 200 kg unit is compactly stowed below deck when not in operation.

Industrial Specifications

The technical parameters of the system ensure long-term operational durability. A 10 kW hydraulic drive system maintains stable output torque even when operating in heavy slush ice. The standard scope of supply is comprehensive, including reinforced hose assemblies and a spare parts kit (comprising tools and accessories) structured for two years of continuous operation.

A New Standard for Open-Water Operations

In the current regulatory environment, the bucket-type oil skimmer provides shipowners with a reliable mitigation strategy against unpredictable environmental risks. As global maritime environmental standards become increasingly stringent, deploying this equipment converts critical emergency response into a highly structured, planned operational procedure. This advanced system demonstrates how robust engineering can effectively resolve the complex operational challenges of the global ocean, ensuring dependable marine environmental protection in all latitudes.


3. Scope of Supply

3.1. Bucket Oil Skimmer, Capacity: 20 m³/h

3.1.1 System Components

ComponentQty
Hydraulic motor-driven cargo oil screw pump1 pc.
Hydraulic hose assembly kit1 set
Cargo oil transfer hose assembly kit1 set
Portable remote control unit for bucket-type skimmer1 pc.
Bucket actuation hydraulic cylinder1 pc.
Brush-disc oil recovery shaft1 pc.
Hydraulic drive for oil recovery shaft pump1 pc.
Oil collection hopper with scraper device1 pc.
Support bracket for bucket-type skimmer1 pc.
Local control panel (option)On request
Additional control stations (option)On request
Hydraulic power unit (option)On request
Bucket-Type Skimmer Front View Dimensional Drawing (Operating Position)

Bucket-Type Skimmer Front View Dimensional Drawing (Operating Position)

Bucket-Type Skimmer Front View Dimensional Drawing (Operating Position)

Bucket-Type Skimmer Front View Dimensional Drawing (Stowed Position)

Bucket-Type Skimmer Front View Dimensional Drawing (Stowed Position)

Bucket-Type Skimmer Front View Dimensional Drawing (Stowed Position)

3.1.2 Technical Specifications

ParameterValue
Model typeBucket-type skimmer
Drive typeHydraulic
Cargo oil collection capacity20 m³/h
Rated flow of skimmer hydraulic motor10 to 30 l/min
Nominal pressure21 MPa
Maximum power10 kW
Cargo oil pump typeHeavy-duty submersible screw pump
Estimated weight200 kg
DimensionsTo be confirmed during detailed design phase
CertificateManufacturer’s certificate
Explosion-proof rating2 EX II T 4

3.1.3 Spare Parts Kit (Spare Parts, Tools, and Accessories)

Manufacturer’s standard spare parts kit configured for 2 years of operation.

3.1.4 Documentation

DocumentQty
Product passport1
Operating manual1
Installation instructions1

3.1.5 Certificates

Manufacturer’s certificate – 1 copy.

Bucket-Type Skimmer Isometric View Dimensional Drawing (Operating Position)

Bucket-Type Skimmer Isometric View Dimensional Drawing (Operating Position)

Bucket-Type Skimmer Isometric View Dimensional Drawing (Operating Position)

Bucket-Type Skimmer Isometric View Dimensional Drawing (Stowed Position)

Bucket-Type Skimmer Isometric View Dimensional Drawing (Stowed Position)

Bucket-Type Skimmer Isometric View Dimensional Drawing (Stowed Position)


4. Additional Requirements

  • Electrical equipment: Ingress protection rating IP56.
  • Material properties: All materials resistant to operating temperature range (-10 °C to +40 °C).
  • Coating system: Coating specification and color subject to Customer approval.
  • Hydraulic system: Standard AUP hydraulic fluid with a cleanliness level of min. Class 12 in accordance with GOST 17216-71.
  • Hazardous area execution: Explosion-proof and intrinsically safe design.
  • Installation: The skimmer is mounted to the marine crane boom via a manipulator arm.
  • Deployment: During oil recovery operations, the marine crane lowers the skimmer into the enclosed spill area.
  • Recovery method: Oil collection from the water surface is performed by rotating brush wheels.
  • Mechanical discharge: Oil adhering to the brushes is removed by a scraper and discharged into the skimmer hopper.
  • Transfer system: An integrated cargo oil screw pump transfers the recovered oil from the hopper to the vessel’s cargo tanks.
  • Viscosity management: In case of excessive oil viscosity, a dedicated injection pump delivers water to the cargo oil pump inlet.
  • Stowage: The bucket-type skimmer is stowed below deck when not in operation.
  • Control system: A portable remote control unit manages the operation of the skimmer and the cargo oil pump.

5. Manufacturer

Izhora Hydrosystems LLC


6. Warranty Period

12 months from delivery date, unless otherwise specified in the contract.


Contacts

Phone: +7 (812) 339-61-68

Email: contact@i-hydro.tech