Factors to be considered in designing the color of asphalt mixing equipment

There is also a treatment method is also in the asphalt concrete mixing equipment outside a closed silo, but the water pipe, nozzle and so on into an air humidifier or sprayer, in order to increase the air humidity in the silo, spray dust removal, so it will add some costs.

In the heating and drying of wet and cold minerals with high water content will consume a lot of heat energy, therefore, asphalt mixing station drying system must be combined with the actual situation to choose fuel.
Usually gaseous fuels (such as natural gas), as well as solid fuels (coal), etc., these fuels are often used to burn performance is not very good, heat can not be effectively played.
Therefore, cold aggregate drying system in the production should be selected liquid fuel, such as heavy oil, diesel and so on.
The so-called heavy oil is fuel oil, the color is black, according to the classification criteria of international conventions, it can be divided into sustainable oils.
Heavy oil because of its own water content is relatively low, there are few impurities, and has a relatively viscous, not easy to evaporate and other characteristics, so it is widely used.
Diesel prices are slightly higher than heavy oil, so heavy oil is more selective from an economic practical point of view.
In addition, for the selection of fuel for asphalt mixing stations, it is necessary to choose the best fuel according to the actual situation, taking into account the purity, moisture, combustion efficiency, viscosity and transportation of the fuel.
In the past, the fuel used is a kind of heavy oil, which has a great adverse effect on human body and environment, so choosing the new fuel at the present stage, with the aim of energy saving and consumption reduction, can not only reduce the cost, but also play the role of improving environmental benefits.

(3) To maintain a good shape of the combustion flame under normal circumstances, the flame shape of the burner should be as follows: The flame center ejected from the burner is in the middle of the burner dryer, forming a flame length of about one-third of the length of the burner dryer, the ejected flame should be symmetrical distribution, and will not touch the burner of the dry cylinder wall, ejected from the normal flame will not emit a different sound, there will be no jumping phenomenon.
Compared to the position of the spray gun head, the flame bezel may have a certain effect on the length and diameter of the flame, generally 1.
5mm.
As the flame bezel approaches the burner nozzle, the length of the flame increases, while the diameter shrinks, and the correct flame shape can be obtained by moving the distance between the nozzle and the flame bezel slightly.

Because the working field of asphalt mixing equipment is also different, so the color environment of the concrete construction site of construction machinery products is also one of the considerations to design the color of mixing equipment, in order to play a warning or protection role.

Asphalt concrete mixing equipment in the process of use, it is easy to produce dust pollution, not only will affect the stirring effect and the normal operation of equipment, but also to the environment and personnel caused harm.
Therefore, in order to prevent two pollution of dust, to avoid damage to the body, must be in the asphalt concrete mixing equipment to set up the necessary dust removal device, play the role of Dustproof.

When the Mobile Asphalt Mixing Plant concrete mixing equipment produced when the stone powder, fly ash and other dust collected by the bag dust collector, can be treated in different ways, one is rain curtain type dust-proof.
Is the bag dust collector outlet connected to a specially constructed closed silo, and installed a lot of water pipes and nozzles at the top of the silo, constantly spray down the water.

(4) Adsorption method It is the use of more active substances than the surface as adsorbent, the asphalt flue gas physical adsorption, and then the adsorption agent regeneration reuse process.
The method has the simple process, high purification efficiency and low investment and operation cost.
According to the properties of bituminous smoke and the comparison and analysis of the above methods, it is suggested that the adsorption method should be used to treat asphalt smoke exhaust gas, and activated carbon should be used to carry out physical adsorption of asphalt smoke
The removal efficiency of benzene pyrene and bituminous smoke reached 99.
5% or more.
After the asphalt fume treatment is up to standard, the exhaust cylinder outside the drain is not less than 15 meters.

(3) Absorption method It uses various mixed components in asphalt flue gas to have different solubility in the absorber, or the active component in the absorber reacts with a certain component to achieve the purpose of treating the asphalt flue gas.
Generally use gasoline, diesel and other substances for absorption, this method system resistance is small, low energy consumption, simple equipment, easy maintenance, but the purification rate is not high, flammable, also not easy to adopt;