At present, the production of artificial sand has become the mainstream of social development, which not only solves the huge market requirements for sand and gravel aggregates, but also protects the natural environment effectively. Therefore, the production of artificial sand is very beneficial for many aspects. We all know that producing qualified artificial sand requires specialized equipment and reasonable process, and the quality of raw materials directamente determines the quality of finished product. That is to say, if the engineering construction has a high demand on the construction aggregate, the raw material for making also need to be focused on sand.The raw material requirements for making sand are as follows.1. Build the sand field need do the survey work for mining resources. It should avoid choosing the poor quality mine with thick covering soil layer, containing mud of interlayer, low intensity parent rock and the slice of layered rock.2. The parent rock used for making artificial sand should not have follow characteristics, the potential alkali reactivity and the compressive strength should not be less than 80Mpa.
It is better to use the limestone, dolomite, granite, quartzite, diabase, basalt and other rocks with clean, hard texture, not weak particles and not weathering phenomenon characteristics to produces the artificial sand. The .mud rock, shale and the slate is not suitable for making artificial sand.3. After the quarry being determined, it is better to manually or mechanically wipe out the surface overlying soil or weak weathered layer so that the rock layer can be exposed. In mining process, it should prevent the contamination of soil, weathered rock, roots, sod and other debris.Henan Hongxing Mining Machinery Co., Ltd. is a professional sand maker manufacturer with decades producing experience, advanced producing technology and considerable service. If you want to get more information about the production of artificial sand, please contact Hongxing Company. Hongxing experts will give you a satisfied answer.
The r & d Department has developed as a novelty worldwide, a revolutionary product for repairing the system antipollution DPF (Diesel particulate filter). Due to European regulations limiting emissions of polluting gases, automakers are forced to design and manufacture new filtering systems such as the DPF. Here is a real alternative to the replacement of the filter. Due to European regulations limiting emissions of polluting gases, automakers are forced to design and manufacture new filtering systems such as the DPF. Currently the majority of diesel engines and all future should mount, as well as the catalyst, an additional filter located posterior to this, which has the Mission of filtrating particles of soot. Thus, pollution levels are significantly reduced. Due to the nature of the system and for this to filter larger particles, it is necessary to manufacture it with a panel highly restrictive, although the system is very effective, but at the same time it is easy that is clogged. Recently Bausch & Lomb sought to clarify these questions. Indeed manufacturer is already knowledgeable of this program the vehicle so using pressure sensors, it knows when is blocking and prepares a regeneration.
DPF equipped vehicle to have the ability to regenerate, need a minimum parameters which, varying values according to the brands, are:.A given load.Minimum engine rpm.A pressure difference between inlet and outlet of filter.A minimum temperature in the appliance. All these parameters must be give in addition for a time determined by the brand. When these parameters meet the car regenerates and returns the filter to a State of normal shutter. The problem lies in that when these parameters are not met, the vehicle does not regenerate and will exponentially, by dabbing until you reach a level where regeneration is not possible for safety reasons. When this type of situation occurs in the most cases has to replace the entire filter. For this costly problem, a product which, applied through the probe before the filter has developed, breaks up larger particles, causing the shutter, so that these already if they can pass through and re-do the regeneration. The application from the 131 TUNAP is made using a gun to specific pressure which brand comes with a tool which is inserted into the filter so that sprayed pressurized.
The set comes a second product which is a neutralizer of alkalinity in the first and in this way we protect the materials after cleaning. The product is water based, so no danger of any kind by putting the vehicle into operation, since it lacks of solvents. He then mounts the probe and should circulate with the vehicle for 15-20 minutes to make the particles pass through the filter and is desobture. With this process, filter that saturation should replace, can be used without any inconvenience. The TUNAP 131 application is made using a gun to specific pressure which brand comes with a tool which is inserted into the filter so sprayed under pressure. The set comes a second product which is a neutralizer of alkalinity in the first and in this way we protect the materials after cleaning. The main brands of automobiles of our country have been positively tested this new product, opening clear expectations in maintenance of vehicles, including the warranty period.