Noise from industries is something that is almost unavoidable as long as machines are made use of. It however has become a serious issue over time due to the fact that the hearing ability of industrial workers may be adversely affected. In fact, the ears of such people may be permanently affected due to such exposure. It therefore is important that strategies are put in place to prevent such effects. There are many techniques used for industrial noise control in Florida.
Damping is one of the used methods. It is made use of in chutes, panels, hoppers, conveyors and machine guards among others. There are two techniques used with this method. The first is unconstrained layer damping that involves use of bitumastic material. This material is stuck to the surface in question. The other technique entails construction of a laminate. Constrained layer damping is more effective and rugged.
With constrained layer damping, there is either re-manufacture of steel guards or the purchase of self adhesive steel sheets. The second option makes it possible for existing components to be stuck and to cover 80 percent of flat surface areas. This results in between 5-25 dB reduction in noise. This however comes with a limitation; there will be reduced efficiency for thicker sheets. Implementation in sheets that have thickness over 3mm is not easy.
Using fan installations is another effective option. The maximum efficiency of fans used precisely coincides with minimum noise levels. Therefore, fan installation features which minimize efficiency are certain to increase noise levels. Bends close to fans and dampers are the most experienced examples. To maximize efficiency, 2-3 duct diameters should be used.
The use of ductwork offers 10-20 dB reduction in air-bone noises. Rather than fitting silencers, such reduction can be achieved by lining the last bend in the ductwork using acoustic absorbent which can be foam or fiberglass. The other alternative is to construct simple absorbent lined right-angled bends that can fit on the opening. Duct vibrations can be treated through damping.
The use of fan speed reductions is helpful in centrifugal flow fans and axial fans. The noises from fans are equivalent to the 5th power of their speeds. Consequently, it is possible in most cases to achieve great reductions in noise from a small drop in fan speed. This can either be achieved by changing pulley sizes or re-setting dampers.
Electric motors can be used in such a way that noises are controlled in the industry. Most companies use electric motors on a wide variety of devices. However, most people do not know that there are general duty motors that are much quieter than the normal available versions. It usually is best to feed the motors into the particular system on a gradual basis so that all replacement motors are quiet.
In case employees have to work in places with high levels of sonic pollution, then they would have to sue earplugs and various other protective gears. It protects them from developing complications. It is also advisable that they go for medical examinations of the ears regularly.
Damping is one of the used methods. It is made use of in chutes, panels, hoppers, conveyors and machine guards among others. There are two techniques used with this method. The first is unconstrained layer damping that involves use of bitumastic material. This material is stuck to the surface in question. The other technique entails construction of a laminate. Constrained layer damping is more effective and rugged.
With constrained layer damping, there is either re-manufacture of steel guards or the purchase of self adhesive steel sheets. The second option makes it possible for existing components to be stuck and to cover 80 percent of flat surface areas. This results in between 5-25 dB reduction in noise. This however comes with a limitation; there will be reduced efficiency for thicker sheets. Implementation in sheets that have thickness over 3mm is not easy.
Using fan installations is another effective option. The maximum efficiency of fans used precisely coincides with minimum noise levels. Therefore, fan installation features which minimize efficiency are certain to increase noise levels. Bends close to fans and dampers are the most experienced examples. To maximize efficiency, 2-3 duct diameters should be used.
The use of ductwork offers 10-20 dB reduction in air-bone noises. Rather than fitting silencers, such reduction can be achieved by lining the last bend in the ductwork using acoustic absorbent which can be foam or fiberglass. The other alternative is to construct simple absorbent lined right-angled bends that can fit on the opening. Duct vibrations can be treated through damping.
The use of fan speed reductions is helpful in centrifugal flow fans and axial fans. The noises from fans are equivalent to the 5th power of their speeds. Consequently, it is possible in most cases to achieve great reductions in noise from a small drop in fan speed. This can either be achieved by changing pulley sizes or re-setting dampers.
Electric motors can be used in such a way that noises are controlled in the industry. Most companies use electric motors on a wide variety of devices. However, most people do not know that there are general duty motors that are much quieter than the normal available versions. It usually is best to feed the motors into the particular system on a gradual basis so that all replacement motors are quiet.
In case employees have to work in places with high levels of sonic pollution, then they would have to sue earplugs and various other protective gears. It protects them from developing complications. It is also advisable that they go for medical examinations of the ears regularly.
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