Main source of dust in concrete mixing plant

2018-04-23

Main source of dust in concrete mixing plant

1. When raw materials are fed into the mixer for production, raw materials such as sand, gravel, cement and fly ash are weighed and then thrown into the main unit of the mixer to generate dust. At the same time, pressure is instantaneously generated inside the mixer and negative pressure is generated in the symmetrical bucket. Weighing accuracy can easily lead to a large loss of raw materials.

2. When powder tanker bulk material tanker hits material into storage tank, the difference in material yields dust from cattle. At the same time, it is also accompanied by the production of pressure inside the warehouse. For this kind of silo, not only the dust problem of the silo is considered, but also the problem of pressure release inside the warehouse is considered.

3. Sand and sand yards and waste yards Sand and dust yards are relatively easy to generate dust when they are discharged. The waste yard is mainly due to the sticky material of the vehicle, which brings dust out of the road.

Concrete dust station should pay attention to the following two issues:

1. Correctly design, arrange and reasonably select dust removal equipment. Place the dust collector directly on the oblique belt hood. All the air intake ducts are also attached to the inclined belt hood to provide a space for the dust to be blown off by the air duct, which is useful for reducing the amount of dust directly entering the dust collector. A pneumatic butterfly valve automatically controlled by the operating system of the mixing station is installed at the bottom of the dust collection hopper of the dust collector.

2, should carefully check and maintain the dust removal equipment. The control of the dust collector of the silo dust collector is very important, but the majority of concrete mixing plant customers often do not realize its importance, until the discovery of dust removal effect is not good, when the safety relief valve starts to dust, the dust removal machine has Filled with dust, at this time just want to start the shaker in addition to the dust on the filter, it is often too late, it does not work. Therefore, every shift must check whether the dust collection pipe is dusty because the non-vertical dust removal pipe is easy to plug. Periodically check the dust collection condition of each filter element of the dust collector. If necessary, dismantle and clean the filter element.

Correctly and rationally designing, arranging and selecting dust removal equipment not only ensures the overall quality of the mixing plant, but also has important implications for reducing the use and maintenance costs.

article from: concrete mixing plant

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