poland history in manufacturing ball mills

istil (ukraine) - mini steel mill

istil (ukraine) - mini steel mill

Mini Steel Mill "ISTIL (Ukraine)" 122, I. Tkachenko Str. Donetsk 83062, Ukraine Tel.: +38 (062) 385 04 40 Fax: +38 (062) 332 24 21 E-mail: [email protected] [email protected]

The flagship of ISTIL business strategy has its manufacturing facilities in Donetsk, Ukraine. With the collapse of the former Soviet Union, Ukraine began an aggressive campaign to privatize many of its enterprises, including the Donetsk Steel Works. In 1996 Metalsrussia predecessor of ISTIL acquired majority shares of Donetsk steel Works. The plant was restructured after capital investment by the ISTIL Group during 1997-2000 period and ISTIL (UKRAINE) was retained by ISTIL Group with a steel production capacity of one million MT/annum.

ISTIL (UKRINE) consists of electric arc furnaces shop, scrap preparation facility, a specialty bar rolling mill with heat-treatment and cold finishing facilities, oxygen block, and other ancillary equipment. Over the last 3 years, ISTIL Group has upgraded the said facility by investing over US$85 million from its retained earnings by introducing most-modern technology of steel making, steel refining and continuous-casting from the world leader in steel mills equipment manufacturing - Danieli, Italy.CJSC MMW ISTIL (Ukraine) is one of the most prominent metallurgical enterprises in Ukraine, an example of the successful foreign investment. ISTIL Group, the owner, has upgraded the facilities of the mill by committing over USD 100,000,000. The state of the art steelmaking process with pollution free melting, refining and continuous casting was implemented at the Mill due to the foreign investment. ISTIL (Ukraine) assortment covers continuously cast square billet aimed for rerolling and continuously cast pipe billet as well as hot-rolled round bars of carbon, structural, high alloy and stainless steel grades aimed for engineering and ball bearing plants, pipe mills, enterprises of oil and gas industry and nuclear power engineering. Besides, ISTIL (Ukraine) is one of a few CIS mills, where improved heat treated rolled stock is produced.

ISTIL Group, the owner, has upgraded the facilities of the mill by committing over USD 100,000,000. The state of the art steelmaking process with pollution free melting, refining and continuous casting was implemented at the Mill due to the foreign investment.

ISTIL (Ukraine) assortment covers continuously cast square billet aimed for rerolling and continuously cast pipe billet as well as hot-rolled round bars of carbon, structural, high alloy and stainless steel grades aimed for engineering and ball bearing plants, pipe mills, enterprises of oil and gas industry and nuclear power engineering. Besides, ISTIL (Ukraine) is one of a few CIS mills, where improved heat treated rolled stock is produced.

neptune industries ltd

neptune industries ltd

NEPTUNE offers Turnkey projects, Plants, Equipment, Special Purpose Machine Development for various ceramic industry segments like Sanitary Wares, Electro Porcelain Insulators, Refractory, Table wares, Technical ceramics, Tiles & Heavy clay as well as Building material & construction industry segments like fly ash bricks, concrete blocks, pavers, tiles.

Turnkey Project For Sanitary Wares (200 Thousand Pcs To 1 Million Pcs / Year) Turnkey Project For Table Ware / Bone China /(2-10 Tons / Day) Slip / Glaze Preparation Plant. Presure Casting And Battery Casting Plant. De-airing Pug Mills For Table Ware / Crockery Plaster Slurry Preparation Plant Auto Glazing & Inspection Equipments Advanced Quality Control & Testing Equipments Clay Washing Plant For Keolin & Ball Clays

Raw Material Batching,Weighing & Handling System Continues Ball Mill / Grinding Millis Intensive Mixers / Ribbon Mixers / Sigma Mixers Noduliser Hydrulic Press Up To 2000 Tons Tap Hole Mass Manufacturing Plant. Castable Manufacturing Plant. Shaped Refractory Handling & Automation System

Turnkey Project For Hollow & Solid Insulator Capacity 1000 Tons 40000 Tons /Years De-airing Pug Mills & Vacuum Extruder 50-910 MM CNC Turning & Boring Machines CNC Cutting & Grinding Machine Solid Core Insulator Cutting Machine Advanced Quality Control & Testing Equipments

Turnkey Project For Hollow & Solid Insulator Capacity 1000 Tons 40000 Tons /Years De-airing Pug Mills & Vacuum Extruder 50-910 MM CNC Turning & Boring Machines CNC Cutting & Grinding Machine Solid Core Insulator Cutting Machine Advanced Quality Control & Testing Equipments

pulp and paper manufacturing processes in papermaking industry

pulp and paper manufacturing processes in papermaking industry

Formed from wood pulp or plant fiber, the paper is chiefly used for written communication. The earliest paper was papyrus, made from reeds by the ancient Egyptians. Chinese paper was invented in the second century, probably by a Chinese court official named Cailun. His paper was made from tree barks and old fish netting. Recognized almost immediately as a valuable secret by the Chinese court, it was 500 years later when the Japanese acquired knowledge of the method. Papermaking was known in the Islamic world from the end of the eighth century A.D.

Knowledge of papermaking eventually moved westward, and the first European paper mill was built at Jativa, in the province of Valencia, Spain, in about A.D.1150. By the end of the 15th century, paper mills existed in Italy, France, Germany, and England, and by the end of the 16th century, paper was being made throughout Europe.

Paper, whether produced in the modern factory or by the most careful, delicate hand methods, is made up of connected fibers. The fibers can come from a number of sources including cloth rags, cellulose fibers from plants, and, most notably, trees. The use of cloth in the process has always produced high-quality paper. Today, a large proportion of cotton and linen fibers in the mix create many excellent papers for special uses, from wedding invitation paper stock to special paper for pen and ink drawings.

The method of paper manufacturing is essentially simple: mix up vegetable fibers, and cook them in hot water until the fibers are soft but not dissolved. The hot water also contains a base chemical such as lye, which softens the fibers as they are cooking. Then, pass a screen-like material through the mixture, let the water drip off and/or evaporate, and then squeeze or blot out additional water. A layer of paper is left behind. Essential to the process is the fibers, which are never totally destroyed, and, when mixed and softened, form an interlaced pattern within the paper itself. Modern paper manufacturing process, although significantly more complicated than the older ways, are developmental improvements rather than entirely new methods of making paper.

Probably half of the fiber used for paper in the paper manufacturing process today comes from wood that has been purposely harvested. The remaining material comes from wood fiber from sawmills, recycled newspaper, some vegetable matter, and recycled cloth. Coniferous trees, such as spruce and fir, used to be preferred for papermaking because the cellulose fibers in the pulp of these species are longer, therefore making for stronger paper. These trees are called softwood by the paper industry. Deciduous trees (leafy trees such as poplar and elm) are called hardwood. Because of increasing demand for paper, and improvements in pulp processing technology, almost any species of tree can now be harvested for paper.

Some plants other than trees are suitable for paper manufacturing process. In areas without significant forests, bamboo has been used for paper pulp, as has straw and sugarcane. Flax, hemp, and jute fibers are commonly used for textiles and rope making, but they can also be used for paper. Some high-grade cigarette paper is made from flax.

Cotton and linen rags are used in fine-grade papers such as letterhead and resume paper, and for bank notes and security certificates. The rags are usually cuttings and waste from textile and garment mills. The rags must be cut and cleaned, boiled, and beaten before they can be used by the paper mill.

As to paper pulp manufacturing process, several processes are commonly used to convert logs to wood pulp. In the mechanical process, logs are first tumbled in drums to remove the bark. The logs are then sent to grinders, which break the wood down into pulp by pressing it between huge revolving slabs. The pulp is filtered to remove foreign objects. In the chemical process, wood chips from de-barked logs are cooked in a chemical solution. This is done in huge vats called cooking digesters. The chips are fed into the digester, and then boiled at high pressure in a solution of sodium hydroxide and sodium sulfide. In the paper manufacturing process, the wood chips are dissolved into pulp in the solution. Next the pulp is sent through filters. Bleach may be added at this stage or colorings. After cooking process, washing process, and bleaching process, the pulp is then sent to the paper plant.

The pulp is next put through a pounding and squeezing process called, appropriately enough, beating. Inside a large tub, the pulp is subjected to the effect of machine beaters. At this point, various filler materials can be added such as chalks, clays, or chemicals such as titanium oxide. These additives will influence the opacity and other qualities of the final product. Sizings are also added at this point. On paper manufacturing process, sizing can affect the way the paper will react with various inks. Without any sizing at all, a paper will be too absorbent for most uses except as a desk blotter. A sizing such as starch makes the paper resistant to water-based ink (inks actually sit on top of a sheet of paper, rather than sinking in). A variety of sizings, generally rosins and gums, is available depending on the eventual use of the paper. Paper that will receive a printed design, such as gift wrapping, requires a particular formula of sizing that will make the paper accept the printing properly.

On the process of paper manufacturing process, in order to finally turn the pulp into paper, the pulp is fed or pumped into giant, automated papermaking machines. One common type is called the Fourdrinier machine, which was invented in England in 1807. Paper pulp is fed into the Fourdrinier machine on a moving belt of fine mesh screening. The pulp is squeezed through a series of rollers, while suction devices below the belt drain off water. If the paper is to receive a water-mark, a device called a dandy moves across the sheet of pulp and presses a design into it.

The paper then moves onto the press section of the machine, where it is pressed between rollers of wool felt. The paper then passes over a series of steam-heated cylinders to remove the remaining water. A large machine may have from 40 to 70 drying cylinders.

Finally, the dried paper is wound onto large reels, where it will be further processed depending on its ultimate use. Paper is smoothed and compacted further by passing through metal rollers called calendars. A particular finish, whether soft and dull or hard and shiny, can be imparted by the calendars.

The paper may be further finished by passing through a vat of sizing material. It may also receive a coating, which is either brushed on or rolled on. Coating adds chemicals or pigments to the papers surface, supplementing the sizings and fillers from earlier in the process. Fine clay is often used as a coating. The paper may next be supercalendered, that is, run through extremely smooth calendar rollers, for a final time. Then the paper is cut into the desired size.

The number of trees and other vegetation cut down in order to manufacture paper is enormous. Paper companies insist that they plant as many new trees as they cut down. Environmentalists contend that the new growth trees, so much younger and smaller than what was removed, cannot replace the value of older trees. Efforts to recycle used paper (especially newspapers) have been effective in at least partially mitigating the need for destruction of woodlands, and recycled paper is now an important ingredient in many types of paper manufacturing processes.

The chemicals used in the paper manufacturing process, including dyes, inks, bleach, and sizing, can also be harmful to the environment when they are released into water supplies and nearby land after use. The industry has, sometimes with government prompting, cleared up a large amount of pollution, and federal requirements now demand pollution-free paper production. The cost of such clean-up efforts is passed on to the consumers.

companies celsa group - industrial presence

companies celsa group - industrial presence

Currently CELSA Group is present industrially in 8 countries and has more than 120 work centers spread all over the world. We currently have six large business groups with steel mills, rolling mills, transformer plants, distribution companies, service centers and recycling companies. Our companies allow us to work in all steel manufacturing processes and be the most diversified.

The head company of the group is the manufacturer of long products with the greatest diversification and volume in CELSA Group . It started in 1957 and has a production capacity of 2.5 million tons of steel diversified in the production of reinforcing steels , wire rods, merchant bars and structural profiles.

Steels for construction is the company under which CELSA Group steel mesh and steel reinforcement manufacturing and sale activity are currently grouped. With a long tradition in the mesh and reinforcement market, it has a strong geographic presence.

CELSA Steel Service ES is the denomination with which the reinforcement activity of CELSA Group has been carried out in Spain since 2014, offering our customers the most advanced solutions for concrete reinforcement.

It is the largest ferrous scrap recovery group nationwide with 13 fields spread throughout the territory to provide the best service to our suppliers and customers. It began its history as a company belonging to CELSA Group in the 80s with a ferrous and non-ferrous scrap market in Badalona.

The acquisition of Nervacero in 1988 allowed CELSA Group to become the leader in the Spanish market in reinforcing steel. Nervacero has a production capacity of one million tons of liquid steel per year and produces steel for concrete reinforcement.

Acquired in 1987, Global steel wire S.A. is specialized in the manufacturing of high-end wire rod and, through its subsidiaries, in its transformation, becoming increasingly present in the most technologically advanced sectors. In addition, it has its own port, which is a competitive advantage in the international market.

Global Bright Bars is a new division of Global Special Steels Products, dedicated exclusively to the production of high-quality calibrated bars for the automotive industry. Global Special Steels Products is a 100% subsidiary of Global Steel Wire.

MRT is the leader in enclosures in Spain and one of the main references in Europe, with a complete range adapted for the residential, professional, industrial and agricultural sectors. Resulting from the merger of the two oldest and most prestigious wire drawing companies in Spain, MRT has accumulated more than 150 years of experience, which allows us to perfectly master the most advanced techniques in the sector.

This CELSA Group company is a specialist in manufacturing and commercialization of Personal Protective Equipment (PPE). Since 1969, when the company was initially created, we have made the individual protection of workers an objective, aware that the equipment that we provide to our clients is the last barrier between the person and the risk.

Located near the arctic circle and acquired in 2006, it is the reinforcing steel producer for the in the Nordic region. It is a corrugated round factory in the northern part of the world and the only one in the Nordic countries.

CELSA Steel Service OY is the Finnish division of CELSA Steel Service, made up of various service and transformation companies of steel products for construction distributed throughout the different Nordic countries.

CELSA Steel Service AS is the Norwegian division of CELSA Steel Service, made up of various service and processing companies for steel products and for construction distributed throughout the Nordic countries.

CELSA Steel Service AB is the Swedish division of CELSA Steel Service, made up of various service and transformation companies of steel products and for construction spread across the Nordic countries.

CELSA Steel Service A/S is the Danish division of CELSA Steel Service, made up of various service and transformation companies of steel products and for construction distributed throughout the Nordic countries.

CELSA France is an electric arc furnace steelwork specialized in the production of steel billets from the recovery of scrap. Acquired in 2007, it is the main billet supplier of CELSA Atlantic. With about 250 employees, it was the first French steel company that managed to obtain a triple certification: quality, safety and environment.

The acquisition of CELSA Atlantic in 2007 consolidated the leadership of CELSA Group in the European long products market. CELSA Atlantic Long has two rolling mills dedicated to the manufacturing of wire rod and reinforcing steel.

Acquired in 2003, CELSA Steel UK is one of the largest manufacturers of long steel products in the United Kingdom. It currently has a new steel mill, built in 2006, and has two rolling mills dedicated to the manufacturing of corrugated steel, light profiles and commercial bars.

CELSA Steel Service UK is the division of CELSA Group that since 2009 has been dedicated to the provision of services and the transformation of steel products for construction in the United Kingdom and Ireland.

Founded in 1908 and part of CELSA Group since 2009, BRC is one of the leading companies in the United Kingdom and Ireland in the provision of services and the transformation of steel products for construction.

Established in 1984 and part of CELSA Group since 2009, Express Reinforcements is one of the leading companies in the United Kingdom in the provision of services and the transformation of steel products for construction.

Acquired in 2009, ROMTECH is one of the leading companies in the United Kingdom in the provision of services and the transformation of steel products for construction and is a specialist in the manufacturing of piles.

With more than forty years of experience and a part of CELSA Group since 2009, RFA-TECH is dedicated to the transformation and elaboration of steel products for the reinforcement of concrete, as well as to the supply of accessories and solutions for construction with reinforced concrete.

CELSA Huta Ostrowiec, which has more than 200 years of steel activity, was acquired by CELSA Group in 2003. The Forge Division of CELSA Huta Ostrowiec serves sectors as diverse as energy or motor manufacturing.

CELSA Huta Ostrowiec, which has more than 200 years of steel activity, was acquired by CELSA Group in 2003. The Long Products Division is a leading manufacturer of reinforcing steel products, structural profiles and merchant bars in Poland.

The word impossible did not appear in the dictionary of Francisco Rubiralta Vilaseca. There, where others saw limits and unattainable challenges he found opportunities. He loved what he did and enjoyed sharing it with others. One of his greatest satisfactions was to see the people around him grow professionally. He sought perfection in everything he did and had the virtue of transmitting his enthusiasm to others. A great defender of continuous training, he never stopped expanding his knowledge throughout his professional career, aware that this was the best way to achieve business excellence.

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