Green Planet Technologies

Grain dust collection is a major issue in the grain and seed industry. Grain dust fires and explosions are so common that OSHA has its own combustible dust rule just for agricultural dust. Failures in grain dust control lead to injuries and deaths.

The size and texture of grain and seed dust varies. The material may be abrasive, sticky, or fine. Also, a grain processing facility uses many different machines and processes. OSHA and NFPA standards regulate the need for dust control throughout grain and seed facilities.

Grain and seed processes that create problem dust may include:

• Conveyors and other transports
• Bucket elevators
• Transfer points
• Hammer mills
• Bin vents
• Silos
• Blenders and mixers
• Truck loading and unloading

Both GPT Cartridge Dust Collectors & Pulse Jet Conventional Bag Houses function well for grain dust control. A GPT's High efficient Dust collector small size allows it to be placed in locations hard to reach with a traditional dust collection system. The grain and seed industries traditionally use baghouses for dust collection. However, cartridge collectors are increasing in popularity.

Grain dust is extremely combustible. Fire and explosion risk pose a serious hazard in all grain-handling applications. Dust control prevents accidents that can cause injuries, facility damage, and deaths. Fires in grain processing facilities often cause major damage to structures and equipment.

An effective grain dust collection system should be considered necessary for all grain and seed processing. Safety standards require all systems to be protected against fire and explosion hazards. Avoid cost-cutting and invest in a properly designed system.

Dust Collection Systems

The principle of operation of aspiration systems involves extracting dusty air at the source of contaminants generation. Subsequently, the air is purified using either inertia forces (up to 70%) or filtration elements, achieving a level of gas purification of up to 99%. These systems are powered by a fan that draws air from the source through the filter and releases it into the atmosphere. Aspiration units can be designed either to remove pollutants from the production process (as used in feed mills and elevators) or to return them to the gas flow to retain product mass (mainly applied in cereal terminals).

Grain dust collection systems are vital for maintaining a safe working environment. Several types of systems are commonly used:

• Cyclone separators 
• Baghouse filters
• Wet scrubbers

By implementing effective grain dust collectors, facilities can minimize airborne pollutants levels, reduce the risk of explosions, and promote a healthier working environment for employees.

GPT is a leading manufacturer of air purification equipment. We design and supply gas cleaning systems, including the necessary collectors. Feel free to reach out to us, and we will be glad to assist you!

DUST COLLECTOR FOR SHREDDER & GRANULATOR

GPT Dust Extractors is a very cost effective device for removing dust generated during shredding or granulating process. More than 90% dust coming from the outlet of a shredder or granulator can be extracted by the dust collector. This device is widely applied in various recycling industries, e.g. E waste recycling, Lithium Battery waste recycling, paper recycling, fiber recycling, plastic recycling, wood recycling, carpet recycling, pvc recycling, metal recycling etc.. If you need such a device, just contact us and we will tailor an optimal one according to the layout of your plant.

The Dust Extraction System Installation:

Our experienced team of fitters installed the system over the space of a week. 

The dust extraction filter installed was one of our GPPJ-123 auto shaker models with 2 x 15kW main extraction fans, this filter is a compact unit with the motors located within the top section of the main filter unit and then encompassed by an acoustic silencer to reduce output noise. The unit is ATEX 22 compliant with the explosion panels located to the rear of the filter unit. The unit has a fully automated electrical control panel which is located in an adjacent room with emergency stop buttons at various points around the building. 

Once the dust has been extracted into the main dust extraction filter it is then simply collected in heavy duty plastic bags located within the two steel waste bins at the bottom of the filter. The bins can then be easily uncliped from the main filter and slid forward allowing a cable tie to be placed around the plastic bags to seal, enabling safe removal of the dust and minimising the contamination risk to personnel carrying out this task. 

We added additional pvc curtain strips to the shredder dust extraction capture hood (as you can see from the video/ photo appended). This serves two purposes; firstly to help contain any airborne dust particles within this enclosure and secondary to enable manual loading of the shredder hopper.

A pneumatic blast gate damper was installed at high level to enable the customer to add a future either/or extraction point on to this system should their requirements change. 

Vacuum extraction points were installed throughout the system to further aid with house keeping. This allows personel to safely vacuum any dust on a regular basis and keep the whole area clean & tidy. 

On completion of the installation LEV commissioning was carried out to provide the customer with LEV certification for the system.

The customer now has a system that will serve them well for years to come.

Looking for help to control dust within your workplace?

GPT would welcome the opportunity to work with you. We are an experienced team of dust extraction engineers, with vast experience in working with dust & fume control. We can work with you to design & install the perfect dust extraction system to safely control dust & fumes in your workplace.

Specifications:

Model: PJBF-45
Air capacity: 4500 CMH
Filter Bag Size:150 mm dia x 3000 mm long
No. of filter bags: 40
Total Filtration area: 56.4 Sq. mtrs
Type of Bag: Non woven needle felt polyester
Casing/Hopper/Tube sheet thickness:MS 3.15mm/3.15mm/5mm
Size of unit: 860 mm x 2180 mm x 7730 mm
ID Fan static pressure: 250 mm wg
Electric motor: 7.5hp/2900 rpm