Advanced Water Screening Bracket Green USA - Advanced Water Screening Technology

Bosker Bandit Raking Machine

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Bosker Bandit Raking Machine Bosker Bandit Raking Machine
Bosker Bandit Raking Machine

For the coarse filtration of small raw water intake structures at:

  • Land and storm drainage pumping stations
  • Power stations (Nuclear, Fossil & Hydro)
  • Chemical and industrial plants
  • Portable water treatment plants
  • Sewage treatment plants
  • Water reclamation facilities
  • Various screening applications


Bosker Bandit

The Bracket Green® Bosker Bandit is designed for highly effective bar screen cleaning in a wide range of applications with features
specifically designed for each application. Simplicity of design and effective debris handling make the Bosker Bandit the ideal solution for cost efficient cleaning of small/shallow, single or multiple bar screen installations. Our engineers customize every Raking Machine to site and application specific parameters. Retrofit into existing installations is simple and there is usually no need for expensive civil modifications. The Bosker has continuously evolved since its introduction in 1960 and its success has been reinforced by Brackett Green’s century of experience in mechanical water filtration. It is this unique combination of efficient design and long term, in-depth field experience that is your assurance of decades of reliable and economical performance.

Advantages Fully Automatic Operation
180 degree swivel operation for convenient debris discharge
Low Operator Attendance – For remote sites
Bosker Bandit

The Problem

Small conventional bar racks often require manual cleaning with long handled rakes or pitch forks. This approach is not only labor intensive, but dangerous and often difficult to discern in remote areas when and how often the bar racks require servicing. Inadequate drainage through the bar racks can cause upstream flooding and/or create excessive velocities through the screens and cavitate down stream pumping equipment. Additionally, once a conventional trash rake has removed debris, a second debris handling system is required, adding to costs, complexity and maintenance. Conventional rakes have difficulty raking multiple bar screens requiring either a rake for each screen or complex, labor-intensive systems to traverse between screens or convey debris to an adjacent dumpster or remote location.

 

Disadvantages Manual Operation
Labor Intensive - requiring hand raking
Multiple channels requires multiple rakes
Bosker Bandit problems

The Solution

The Bosker Bandit is a manual start, automatic cycle or fully automatic trash rake system. Whether you manually turn the system on or operate the system through a PLC controller, the system will automatically clean a bar screen and is capable of swiveling 180 degrees to facilitate easy and convenient debris discharge. There is no need for multiple rakes, conveyor belts or manual handling of debris. The Raking Machine can also operate in automatic mode by reading the pressure differential or water depth to activate the automatic cleaning process. These combined features eliminate the need for time consuming debris re-handling and provides 24-hour coverage in case of nighttime screen blockage. Loading debris directly into a dumpster or trailer eliminates the need for additional handling.

Bosker Bandit solutions
Bosker Bandit solutions


The Process

At the start signal (manually or automatically activated), the Bosker Bandit Machine hydraulically activates its arm (1) to descend into the water and rake the bar screen in ascending motion until it reaches the top of the bar rack. Cylinders rotate the forks and debris cup and rotate the machine 90 or 180 degrees to deposit the debris collected into an open dumpster for disposal. The arm returns to its closed and frontal position until a repeat cycle is activated or the machine traverses to the next bar screen.

Bosker Bandit process
Bosker Bandit process Bosker Bandit process Bosker Bandit process Bosker Bandit process

Other Features

The hydraulic hose reel (2) provides for the activation of the bucket-gripper and bucket-gripper extension arm. This enables the hydraulic arm to extend out and inward to clean the bar racks while moving the bucket-gripper inward and outward for the collection and removal of debris. Other features include: cable caterpillar (3) which keeps the electrical cables from tangling while the system is moving along a traveling rail. Atraveling rail (4) allows the Bosker Bandit to move horizontally to service multiple channels (5). The Bosker Bandit incorporates a rotational pivot joint (6) which provides full 180 degree pivot of the hydraulically driven arm and bucket-gripper allowing the Unit to deposit debris into a dumpster on either side or behind of the Bosker Bandit.

 

Bosker Bandit other features
Bosker Bandit other features
Bosker Bandit other features Bosker Bandit other features Bosker Bandit other features

BOSKER BANDIT
SMALL –UNMANNED

Land & Storm Drainage
Power Stations
Hydro Plants
Chemical and Industrial Plants
Potable Water Treatment Plants
Sewage Treatment (colleges & prisons)
Water Reclamation Facilities

Bosker Bandit diagram

Bosker Bandit diagram Bosker Bandit diagram

  Safe Working Load 550 Lbs. / 750 lbs. Max. 250 Kg / 340 Kg Max.
A Screen Width 4.0 ft. – 100.0 ft. 1.2 m – 30.5 m
B Maximum Depth of Screen 13.2 ft. 4.0 m
C Dump Height 6.5 ft. 2.0 m
D Maximum Extension 14.9 ft. 4.5 m
E Minimum Retraction 6.4 ft. 1.9 m
F Center to Structure 2.0 ft. 0.61 m
G Incline - Angle 45° to 90° 45° to 90°
H Base Foundation Width/Screen Side 3.2 ft. 0.9 m
I Base Foundation Length 3.5 ft. 1.1 m
J Minimum/Maximum Rake Width 4.0 ft – 13.2 ft. 1.2 m – 4.0 m
K Pivot Radius 8.85 ft. 2.700 m
L Minimum/Maximum Bar Spacing 0.50 in. – 8.0 in. 12.0 mm – 200.0 mm
   Site Credit: ECW