The REDLER Bulk Reception Unit (BRU) is an intake device based on the principle of a wide belt Apron Feeder.

The purpose of the BRU is to receive from road tipping vehicles (or front end loaders) and to convey and elevate the material for delivery into the process. This is achieved without recourse to ground excavations and expensive civil engineering. Normally a minimal height ramp (typically 750 mm) is all that is required.

The wide belt design allows the BRU to operate with a very wide range of materials, from grain to heavy ores and sludges, without risk of bridging and can be used as a buffer store as well as providing a regulated feed.

The BRU is constructed from rolled hollow sections and steel plate and is designed in a modular form such that units can be tailored to suit specific site requirements. Variations in length and inclination are easily accommodated.

The BRU is normally delivered to site completely assembled and tested ready for positioning on preprepared, local foundations and can be up and running within hours.

Bulk Reception Unit supplied to
Millennium Chemicals handling
Rutile Ore @ 50 tph

Description

Accepts most products delivered by lorry or moved by shovel, and forms a holding hopper and feeder in one. It is designed for above ground installation with minimal civil requirements, and can be supplied with an optional clad enclosure. A variable speed hydraulic drive and integrated control system permit adjustment of the discharge rate to suit lorry turn round requirements. Depending on product characteristics discharge capacities can be in excess of 500 tonnes per hour.

Bulk Reception Unit supplied to Tioxide,
Grimsby, handling Gypsum, Chalk and
Limestone @ 50 & 90 tph

Technical Specification

General: Typical machine lengths are 7.5m, 10m, 12.5m, 15m, or 17.5 m and inclines of 10°, 15°, 20° or 25°.

Subject to product characteristics the rated holding capacity is approximately 30m3.

A minimum ramp height of 750 mm is required to bring the lorry tail over the feeder end.

Construction – Chassis:

The Reception Unit chassis is fabricated from 6 mm thick mild steel plate suitably stiffened with steel profile sections and support legs to ground level. The inlet section is protected with suitable reinforcements, and optimal loading is ensured with a product specific reception hopper. The product is contained on the conveyor belt with side panels and flexible adjustable skirting strips.

Feeder

Chain – The 152 mm pitched twin strands of conveying chain are made of high tensile steel with solid stud and bush connections and Æ89mm hardened rollers, which run on wear resistant manganese runners. Every second chain pitch has an attachment lug for mounting the belt support slats. The designed chain load safety factor is 10:1.

A central manganese faced skid rail runs the length of the unit to provide intermediate support for the belt support slats in the event of extreme overload conditions.

Belt – A 2600 mm wide Conveyor belt to suit the characteristics of product. A continuous profile is vulcanised around each edge of the Conveyor Belt to provide a contact surface for the adjustable product seal and to stiffen the belt edge.

The belt is securely fastened with corrosion resistant fixings onto belt support slats.

Drive and Tail Shafts – The drive shaft is made in high tensile steel and the tail shafts in mild steel. The drive shaft is mounted on pedestal type bearings and the tail shaft on bearing take-up units.

Drive – The variable speed hydraulic drive system comprises of an electric motor (IP55) with direct coupled gear type hydraulic pump unit and a shaft mounted ‘Hagglund’ hydraulic motor. The hydraulic circuit includes an anti-run back device and a variable pressure relief valve to protect the system from overloading.

Variable speed is provided by regulating the flow of hydraulic fluid at the hydraulic pump unit and thus matching the system flow to the required belt speed. The required belt speed is set by an adjustable flow valve during commissioning and is generally not re-set during operation.

Outlet Chute
The discharge chute with flanged outlet is fabricated from mild steel plate, which can also be lined as an option.

Head Access Platform Fabricated from profile steel sections with open mesh floor decking, double row handrailing with kick plates to all exposed edges and caged ladder access.

Safety and Control Instrumentation
The following are supplied and pre-wired to the local control panel:
• Tail Shaft Rotation Monitor
• Head Chute High Level Switch
• Emergency Stop Press Buttons
• Low Hydraulic Fluid Level Detector and Cut-out
• High Hydraulic Fluid Temperature Detector and Cut-out

Local Electric Control Panel
The unit is supplied with a wall mounting Control Panel suitable for connection to a 3 phase supply to provide automatic control of the Bulk Reception Unit hydraulic motor and solenoid valve.

The Panel is supplied with a safety relay, which is energised by a power on push button located in the panel door to monitor safety inputs and emergency stop push buttons. Mounted in the panel are the following:-
• Door interlocked isolator handle
• Emergency stop button
• Power on Lamp
• Power on push button
• Latching emergency stop push button
• Start push button for Reception Unit hydraulic motor
• Stop push button for Reception Unit hydraulic motor
• Indicating lamp for Reception Unit system running
• Indicating lamp for Reception Unit belt running
• High pressure warning lamp
• High pressure alarm lamp
• Overload tripped alarm lamp

Hydraulically driven, variable speed. Discharge rates to suit lorry turnaround requirements. Can be provided with integrated control system.
Capacities in excess of 500tph.

Accepts most products delivered by lorry or moved by shovel. Forms holding hopper and feeder in one. Above ground installation with little civil requirements. Can be supplied with clad enclosure

Bulk Reception Unit supplied to Anglia Water, Canwick WTW, handling Sewage Sludge Cake @ 500 tph

Hagglund hydraulic shaft mounted motor with integral friction coupling and torque arm.

Solid pin high strength roller chain each side. Operating on manganese faced tracks with rectangular hollow section belt support slats.

Manual screw take-up unit needs minimal tensioning

Mounted internally to the panel are the following:
• Switch fuse
• Transformer and set of control fuses
• Power on safety relay
• 3 phase starter for Reception Unit hydraulic power pack
• Control circuit relays and timers
• Anti-condensation heater and thermostat
• Terminals for connection to the following external equipment:-
– Reception Unit 3 phase power pack
– Reception Unit RoCon Speed Sensor
– Power pack high pressure warning switch
– Power pack high pressure shutdown switch
– Power pack low pressure shutdown switch
– Reception Unit outlet level probe

NB: The connection and supply of the main 3 phase incoming cable is not included in our scope of supply.

Standard Paint Finish
• Shot blast to Class 2.5
• Prime Coat: Red Oxide Zinc Chromate 50 microns dft
• Intermediate Coat: Alkyd Undercoat 40 microns dft
• Top Coat: Alkyd Enamel 40 microns dft
• Minimum total dft 130 microns
• Bright parts suitably protected from rust before despatch.
• Motor/Gearboxes and other proprietary parts are normally supplied in the manufacturers standard finish.

NB: Other paint options available.

OPTIONS

Weatherproof Enclosure
Comprising a fabricated steel framework mounted around the Reception Unit body clad externally with plastic coated profile sheeting, complete with all the necessary flashing and finishing materials to form a weatherproof enclosure.

Exhaust Flange
A flanged opening can be included, which is sealed to the cladding and provided with a drilled flange to accept exhaust connection supplied by others.

Head Access Platform
Fabricated from profile steel sections with open mesh floor decking, double row handrail with kick plates to all exposed edges and caged ladder access.