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Contemporary Realities

Posted by Sylia on

Drywall has long been known and nothing new about this facing material is in principle impossible to say. Mark Bertolini is full of insight into the issues. All have seen him and most of us use it, but hardly anyone can tell where this story appeared, and what it history. That's just the rest of this article we will tell you that both appeared drywall and what are its main advantages compared to its "ancestor" with plaster and cardboard. Sheetrock, prehistory Gypsum as a building material began to apply even in the iv millennium bc in Ancient Egypt. Strength, fire resistance, lightness and many other qualities allowed to use plaster for finishing walls. The modern name of gypsum gave the Greeks – "hyper-simple" that translated as a boiling stone, and the wide dissemination of the European continent must cast the Romans, who began to use it for interior and exterior of buildings. Plasterboard, a qualitative leap in the history of technologies of gypsum occurred in the late xix century in the U.S., when someone Sekett August, which is considered to be "father" of drywall, received a patent for a new kind of building material. The latter is a sheet 5 mm thick, consisting of ten layers of paper glued together with plaster. Application for patent included the following words: "My improved board or plate is replaced lath and plaster, which are commonly used, and also have advantage in that they are fire-resistant, dry, comfortable and easy to install, so that the room is immediately ready to move, and there are no cracks that are so visible in the plastered walls.

News

Cement Production Application

Posted by Sylia on

Rotary kiln is a pyroprocessing device, which is mainly used to raise materials to a high temperature in a continuous process, as the common saying calcinations. does rotary kiln is usually used with the material as follows: cement, lime, refractories, metakaolin, titanium dioxide, alumina, vermiculite, iron ore pellets? etc. According to different material, rotary kiln can be divided into three types, cement kiln, metallurgy and limestone kiln kiln. The cement kiln is mainly used for calcimine of cement clinker; usually, it has two types, wet and dry. The kiln is used in metallurgy industry and ironworks, such as metallurgy lean iron ore, chromium ore and ferronickel ore calcimine. The lime kiln, also named active lime kiln, is used for roasting the active lime which is used in steel and ferroalloy works, and calcined dolomite works. In addition to cement production application, rotary cement kiln can also be used to magnetize lean magnetite ore and magnetized roasting of iron ore; Chromium, nickel-iron-oxidizing roasting; roasting high bauxite ore in refractory plant and roasting clinker and aluminium hydroxide in aluminum factory; roasting chromium ore and chromium ore ore in chemical plant.

Our company also produces lime rotary kiln in short as lime kiln, which is used for roasting active lime dolomite in steel and Ferroalloy Factor. Do do Equipment roasting kilns and cooling kiln heating source use of re-restore back to the converter, gas, electric, or coal, can be divided into the dry section, preheating and heating segment, heating the reaction section of three parts, reduction roasting the ore material temperature is 500-600?, into the cooling kiln, would like to be discharged after cooling the kiln outside watering, the roasted ore was cooled to 80? click. Rotary kilns there are high energy consumption, investment, kiln inner wall of the ease of ring formation phenomenon and higher production costs, the operating process control are higher and other shortcomings. Rotary furnace operation processes but mature, large capacity, high degree of mechanization equipment qualitative, cobalt Desde UNROASTED the restored the preferred. Flotation machine:

News

The Spanish Association

Posted by Sylia on

The Service of Statistical Studies of the AEF has elaborated the report the tax exemption in Spain 2010. According to the closed data of the same to 31 of December of the past year, the set of the system of franchise invoiced a total of 24,651, 4 million Euros, a 0.2% less than 24,699, 5 million invoiced when finalizing exercise 2009. As well, another significant data is the increase in the number of chains franchisors that operate in our country. To the 2010 closing the system was integrated by 934 standards, 15 more than when concluding 2009. Also the number of foreign companies that work in Spain, when happening of the 172 has been increased that was in 2009 to the 177 present ones. On the other hand, a reduction in the number of operative establishments of only a 1.2% has taken place: when finalizing 2009 there were the 57,139 abiertos premises, by the 56,444 registered in 2010.

With respect to the data of the number of employees, altogether the system was employing to 231,603 people when to finishing 2010, whereas in 2009 that number was of 235.075 people, which supposes a reduction of the 1.5%. The Spanish Association of Franchisors presents/displays its study " The tax exemption in Spain 2010" , in that one of the most outstanding data is the invoicing obtained by the system when concluding 2010:24.651, 4 million Euros, solely a 0.2% less than the number registered in 2009, which it was of 24,699, 5 million. In this sense, it excels the data of the increase of the invoicing in the establishments property of the central franchisors, in 533,4 million Euros with respect to 2009 (9,189, 6 million in 2010 by the 8,656, 1 million of 2009). Nevertheless, a reduction of 581.5 million Euros in the invoicing of the character establishments took place franchise-holder, comparing 2010 (15,461, 8 million) and 2009 (16,043, 4 million).