Abrasive Blasting
Dust Control Saves Lives
Why Grydale? Experts in Dust Control.
Our team has over 20 years experience designing dust control solutions and are able to advise on which units would be most suitable for your application and site conditions. Our onsite team can also determine the optimum set up of equipment to ensure dust and fumes are managed effectively.
Abrasive blasting produces high levels of dust and fumes which can be hazardous to the health and safety of workers.
Grydale has a range of fixed and mobile dust collectors which can eliminate dust at the source and protect your workers from potential deadly diseases and accidents in the workplace due to poor visibility.
In some instances blast rooms and pneumatic recovery systems are require to contain the dust and prevent any dust escaping. Our engineering team design a dust control solution specific to your requirements and site conditions in accordance with the workplace health and safety regulations.
Grydale JMS 16 F-Series Dust Collector
Abrasive Blasting generates large quantities of inhalable dust
Pneumatic Recovery System attached to Blast Room
High Efficiency Filters
High Efficiency Filter Cartridges provide filtration of both dust and diesel particulates. Baffle plates distribute air throughout the dust collector ensuring an even wear of filters. Filter access doors offer easy access to the filters, enabling efficient filter maintenance and maximising machine uptimes.
Filtration Efficiency
Independent, NATA certified Air Flow Performance and Filtration Testing has been conducted both above and below ground as part of rigorous Performance Verification and Certification processes and shows a collection efficiency of 99.99% at 0.067 micron.
Air Intake
JMS M-Series dust collectors offer flexible intake options which means they can be used for general ventilation and dust extraction at the source. Single air intakes are best suited for large dust loads whilst dual and multiple air intakes can be used to extract dust from multiple sources simultaneously. Flexible couplings allow the dust collector inlet to connect effectively to ducting on uneven surfaces.
Filter Maintenance
The filters can be easily accessed through the filter access doors to allow efficient filter maintenance to maximise machine uptimes. Changing the filters at the optimum time ensures the dust collector does not draw more kW than required to maintain air flows.
Reverse Pulse Cleaning System
JMS M-Series dust collectors have either a plant air connection or an on-board air compressor and receiver tank which feed the pneumatic system to provide reverse pulse filter cleaning. The pneumatic system’s primary function is to clean out the filters during operation to prevent dust build up on the filters.
Pressure and frequency of pulse cleaning is adjustable and helps reduce the number of filter changes required.
Dro-Out Box
Our patented drop out box takes heavy dust particles and shotcrete fibres out of the air stream and discharges them through the augers and rotary valves before they hit the filters. This exclusive patented design extends filter life and allows the units to handle extreme dust loading.
Sizing a Dust Collector
A combination of airflow, air velocity, pressure, resistance and air-to-cloth ratios determines the appropriate size and ducting configuration. Incorrect sizing can result in high emissions, lowered productivity, reduced filter life and an unsafe working environment.
Airflow.
Generally the larger the space where extraction is required or the greater the number of pic-up points the great the airflow required. Variable Speed Drives (VSD) or Variable Frequency Drives (VFD) can be used to adjust the airflow when there are fluctuating site conditions. This can help to reduce power consumption.
Air Velocity.
For dust to travel suspended in air it must travel at or above the minimum conveying velocity for that product. There are also risks such as explosion, toxicity and abrasion associated with certain dust types to be considered.
Air-to-Cloth Ratio.
For dust collectors to capture dust from the airstream, they must have a sufficient number of filters. Maintaining an adequate air-to-cloth ration enables the dust collector to operate at peak efficiency. Dust types and the amount of dust per cubic meter are all determining factors.
Pressure and Resistance.
The fan used in the dust collector must supply enough suction to overcome duct and fixed pressure losses from the collection points through the dust collector and filters before exhausting clean air out of the system.
Centrifugal Fan. Optimised air flow, energy efficiency and enhanced durability.
JMS M-Series Dust Collectors feature a centrifugal fan that is optimised for the application air flow and pressure requirements. Centrifugal fans offer superior energy efficiency and enhanced durability, allowing them to operate in even the most corrosive environment. One motor and one impellor are used to develop system pressure.
Variable Speed Drive & Velocity Probe
One of the key aspects of JMS M-Series Dust Collectors is the inclusion of a Variable Speed Drive (VSD) as part of the standard configuration. The VSD is used in conjunction with a high precision Air Velocity Probe to allow power consumption to be regulated to achieve the air volume required. This makes the units power efficient and allows power consumption to be reduced by up to 40%.
Fan Silencer
Exhausted air passes through curved silencers to reduce noise pollution. Units can be supplied with a square to round attachment allowing a vent bag to be attached to the exhaust side if required.
Custom exhaust silencers can be designed and manufactured to meet site acoustic requirements.
Dust Discharge System. Hydraulic powered reversible augers maximise dust discharge efficiency.
Hydraulic Reversible Augers Rotary Valves
JMS M-Series dust collectors include hydraulic reversible auger(s) and stainless steel rotary valve(s) dust discharge system to discharge dust particles to the site floor or 1T bulker bags.
The use of hydraulics to power the auger(s) and rotary valve(s) maximises their efficiency whilst the ability to reverse the auger(s) and force material through the clean out hatches is key to increasing uptime in the event of product build up in the hopper and auger(s). This reduces the maintenance effort and the requirement to have LV and HV electricians servicing a mechanical component.
There are a number of dust discharge configuration options including:
Dust Discharge Options
Incline augers
Front or side incline augers allow dust particles to be discharged to 1T bulker bags.
Slurry augers
Available on our JMS 40 M-Series, JMS 50 M-Series and JMS 60 M-Series
Dust can be discharged into a slurry auger by the stainless-steel rotary valve and turned into a wet slurry before being discharged to the site floor. This helps to prevent dust reforming.
The slurry auger can be run off either plant water. If plant water supply is not attached the machine will discharge material as dust but will not affect operation until the water supply can be restored.
Shotcrete drop out box
Available on our JMS 40 M-Series, JMS 50 M-Series and JMS 60 M-Series
The patented drop out box removes shotcrete and heavier particles from the airstream prior to entering the main filter house chamber and auger system. An additional shotcrete auger can be added to further protect the filters whilst reducing the likelihood of a blockage in the main discharge augers.
Control and Monitoring Options. Proprietary software facilitates ease and speed of operation.
PLC (Programmable Logic Computer)
A simple one button start-up / shut-down sequence starts / stops all critical components in a programmed order which increases the efficiency of the unit and provides additional safety for workers. The touch-screen display facilitates ease of operation. On-screen instructions and warnings display error codes which provide a powerful diagnostic tool to support service and maintenance staff.
Our proprietary software is designed to enable performance and trend monitoring. This offers extensive possibilities for system optimisation, process analysis and transparency in machine monitoring, along with scheduling preventative maintenance and servicing at optimum times.
The dust collectors can be configured to record a full dataset including fan hours, filter life, differential and static pressures, hydraulic pressures, emissions, power usage and more.
CANbus
The CANbus system enhances speed, flexibility, and reliability in communication along with supporting effective troubleshooting and maintenance from off-site. The system retains key alarm logs so that system performance and troubleshooting can be undertaken as required.
Key instruments that use the CANbus system include:
Air Flow Meter
An air flow meter monitors the air flow from the exhaust.
Real Time Emissions Monitoring
Real time particle detectors examine emissions coming out of the clean air exhaust and can be tuned to meet the requirements of any given site. The unit can be programmed to alarm when levels are being approached and exceeded.
Differential and Static Pressure Gauges
The static pressure monitor alerts the operator if it is necessary to turn the system volume up due to a long duct run or if there’s a blockage in the ducting. The differential pressure monitor alerts the operator if filters are blocked or if there are higher than normal dust loads.
Central Automatic Greasing System
Grease banks are fitted as standard to all units.
An automatic greasing system can be fitted as an optional upgrade to ensure all bearings are maintained at correct intervals, extending operational life and reducing the time required at service periods.
Fuel Level Indicator Lights (on Diesel Models)
On diesel units, fuel level indicator lights alert the operator to remaining fuel levels.
Proximity Sensors
On track units, proximity sensors can be added to alert the operator when any object becomes close to the unit when moving.
Safety Features. Maximising the health and safety of workers.
JMS M-Series Dust Collectors offer a number of features that focus on maximising the health and safety of workers along with providing a safe working environment by controlling dust and fumes.
Key safety features include:
Emergency Stop Lanyard System
Emergency stop buttons are located on the unit. Track and hydraulic stepping systems also feature a safety lanyard system runs around the perimeter of the unit enabling anyone to ‘grab and kill’ the machine with immediate effect.
Split Starter and Battery Isolators
Split starter and battery isolators allow the use of service lights when the engine is off or being maintained. It also allows access to full machine diagnostics, reducing the risk to service and maintenance staff.
Operation & Maintenance Lights
Operational and maintenance lights have been fitted in key locations on the unit giving operators and maintenance workers clear visibility of components and / or to illuminate working spaces.
Fire Suppression System
To be compliant with country and industry specific regulations, a fire suppression system can be added to units to surround the diesel engine or a chemical suppression system can be added to electric units.
Contact us for more information?