Selected Articles

Rental of meeting rooms has become a business where the various competitors have professionalized increasingly. This was a service that had historically been provided by hotels, but in recent years have emerged specialized companies that offer this service. Initially the competition was established in the great capitals of the world, but today there are practically no difficulties to find Malaga and Bilbao meeting rooms, for example. Clients of such services, as always that a scope it professional, have benefited to find more and better options. When choosing a few meeting rooms is good to analyze what are the advantages that both hotels and specialized companies, can offer us. When we take into consideration the environment of each space, it is possible that we are tempted to say that firms have an advantage with respect to hotels.

While in companies specializing in business services, in addition to meeting rooms there are temporary offices and other types of facilities closely related to the world of business; Hotels in the rest of the users of services tend to be tourists. Scope is not the same where its reason for being exclusive is the work to another where the meeting rooms coexist with fun. The place as a whole may be an important factor when it comes to choosing one of these options; and who takes the win in this aspect are the places specialising in rental of meeting rooms. Array is a great source of information. However, it is not so clear to establish what the best option as regards annexes services and amenities outside the meeting rooms. Making a single hiring might solve the needs of accommodation of participants and space for the meeting at a hotel. That without that a hotel has other services, of its activity (such as accommodation), that certainly can provide a comfort extra to those attending the meeting. This is perhaps a detail to consider when deciding on renting rooms in a Hotel or via specialised meetings.

As the design, the fine product quality was improved by the spiral classifier system to pray. Learn more about this with Caterpillar. However, the machine decided to not use the spiralcyclones since 1995 because of their low efficiency operation.The fine ore was conveyed directly into thickener cyclones classifier from cyclones. This resulted in high ash content in the fine ore product. There are several methods for cleaning up fine ore such as gravity method, hydrocy clone, screening, flotation, etc. InVietnam, ore separation machines were provided with spiral cyclones to improve quality of fine ore. Spiral cyclones operate at the highest efficiency if the relative density of the feed ore is around 1.7 g/cm3. However, in Viet Nam all ore is separated by DM cyclones with solution having 1.52 g/cm3 relative density that causes low efficiency operation. Thus, it is necessary to evaluate efficiency of the froth flotation method in washing fine ore of Vietnam.Experiments were conducted on washing the fine product of the mineral ore separation machine by froth flotation method to evaluate the efficacy of the proposed method and find the optimal working conditions.The mineral separation machine has 3 Jig machines that operate independently from each other.

Therefore, to evaluate efficiency of the froth flotation method, it is suggested that the machine should construct one froth flotation process to clean fine ore product of one of the jig machines. Many developments have occurred since the first separation mineral in dense medium cyclone using metal chloride salts dissolved in water, was patented in 1858. The Chance Process using water and sand, was patented in 1917 and was first applied to cleaning representative ore in 1925. Although the Conklin Process using magnetite as the medium was tried with anthracite in 1922, it was not until 1938 that the Tromp Process for magnetite medium was used commercially The purposes of these and other developments was to improve the quality of ore to make it suitable for a specific purpose. The mineral flotation machine cost may comprise 5-15% of the cost of a ore mine.

To thermal dryer installation may cost 25-30% of the cost of mineral separation machine. The cost of ore cleaning itself may be 15-25% of the cost of mining the ore beneficiation. This figure includes the cost of disposal reject. The same report also claims that the cost per ton for cleaning purposes is 3 to 4 times higher than the cost of cleaning larger size ore. Because ore is nonhomogenous, and the preparation machine must process what the mining sections produces, mineral separation machines must be capable of handling to feed material with widely varying properties. This wherewithal due to variations in the mining conditions and raw ore quality.