Concrete plant owners and operators know the problems of dust collection. From the original startup permitting and paperwork connected with the dust produced at concrete plants through the ongoing maintenance and replacement of dust filters and equipment years when you have experienced business, dust collection and suppression is an essential part of the system. The laws and rules regarding dust collection and suppression requirements vary town by town, county by county and even state by state. Additionally you may have various agencies that you need to cope with including local zoning authorities, DNR, EPA and others depending on your own location. Fortunately the gear useful for collecting and suppressing dust connected with concrete plants has continued to improve and is currently very effective.
Dust collection and suppression must certanly be considered at a number of different aspects of the concrete plant. Some owners will put equipment to collect and control dust in most area where it can be created. Others owners will only put the collection equipment where it is totally required. Many owners use more dust collection equipment then required because they want to be green, appease opponents Abbattimento polveri, or for other reasons. Ultimately your choice on what sort of dust collection equipment you will need is founded on what you are attempting to accomplish and what sort of concrete plant you have.
At the very minimum concrete plants can be bought standard with a dust vent on the cement silos, usually more than one per compartment. When cement is delivered in a bulk tanker it’s pneumatically blown from the tanker into the silo. A silo being filled by way of a bulk tanker with no venting system standard on most silos looks as though the silo is on fire. Cement, fly-ash and slag (the most typical materials in silos at concrete plants) are aerated commodities. This means that when air is introduced into the material it becomes lighter and flows easier. When these materials are pumped into the silo’s from a tanker the dust collector keeps the materials from flowing into the environment looking just like a thick smoke. In the case of silo dust collectors they actually provide operators with a price savings because it keeps them from losing massive amount materials being delivered.
Another common area for dust collection equipment is where in fact the materials discharge into the mixer. Precast and product plants will commonly have a dust collection system integrated with their plant mixers. Ready mix plants frequently have a dust collection system that helps contain and control the dust around where in fact the truck connects with the plant. Other areas which are often built with dust collectors include weighing hoppers like a cement batcher. Some locations are even forced to manage the dust from trucks on gravel drives and areas using water trucks to keep the area moist and dust in order as trucks travel through.
Obviously understanding the areas on and around your concrete plant which are problem areas for dust creation as well us knowing what environmentally friendly and zoning requirements connected with dust are among the most crucial factors in selecting dust collectors and suppression equipment. Another important factor is developing the technique for controlling the dust. Some plants make use of a different dust collector for each and every area they have to control. Central dust collectors are also available that use ducting systems to collect dust from multiple areas and vent it to an individual centralized dust system. Some concrete plants use a mix of systems. There isn’t necessarily the right or wrong system, it is just selecting the correct system for the application.