straight grate pellet furnace in russia

straight grate pellet furnace in russia

The straight grate consists of a stationary furnace with a moving set of pallet cars travelling through the furnace on a set of rails The pellets are fed onto the cars and travel along the furnace where they are dried heated and cooled...We are a professional mining machinery manufacturer, the main equipment including: jaw crusher, cone crusher and other sandstone equipment;Ball mill, flotation machine, concentrator and other beneficiation equipment; Powder Grinding Plant, rotary dryer, briquette machine, mining, metallurgy and other related equipment. which can crush all kinds of metal and non-metallic ore, also can be dry grinding and wet grinding.If you are interested in our products or want to visit the nearby production site, you can click the button below to consult us.Welcome to our factory to test machine for free!

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    Stone Crushing Plant

    Production Capacity: 50-800TPH

    Application Field: Hydropower, building material, highway, city construction, metallurgy, coal mining and so on.etc.

    Applied Materials: Granite, basalt, bank gravel, bauxite, cement clinker, quartz silicon carbide,limestone, river stone, etc.

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  • Trommel Screen

    Trommel Screen

    Power: 0.5–5.5kw

    Screen Layer: 1–2

    Screen Size: 1–40mm

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  • Dry Powder Briquetting Machine

    Dry Powder Briquetting Machine

    Power: 37-55kw

    Capacity: 1-18TPH

    Application: It is widely used in refractory materials, powder plant, metallurgy, chemical industry, energy, transportation, heating and other industries.

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  • Spring Cone Crusher

    Spring Cone Crusher

    Feeding Size: 65-300mm

    Discharging Size: 3-60mm

    Production Capacity: 12-1000TPH

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  • Limestone Stone Crusher

    Limestone Stone Crusher

    Feeding Size: 65-300mm

    Discharging Size: 3-60mm

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  • Toothed Roll Crusher

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    Feeding Size: ≤25-≤100mm

    Production Capacity: 5-100t/h

    Applied Materials: River gravel, iron ore, limestone, quartz, granite and other medium or hard ores and rocks.

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  • Straight grate systems Metso

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  • Traveling Grate Pelletizing Plant Outotec

    Pellet size can be precisely adjusted by varying the disc inclination circumferential speed and feed or water addition rates During induration the green pellets are distributed evenly across the traveling grate and then hardened in a furnace where they pass through updraft drying downdraft drying preheating firing afterfiring and

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  • Energy analysis of pelletising in a straight grate

    In paper B the material and energy flows within the straight grate induration furnace MK3 are analysed The MK3 induration furnace was divided into four different zones where a mass and energy balance was calculated in each zone There are huge internal energy streams inside the MK3 induration furnace

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  • CONTRIBUTIONS TO THE TECHNOLOGY COMPARISON

    The straight grate technology requires the use of hearth layer which ranges between 6 and 10cm in height whereas the green pellet height is typically between 30 to 45cm In the gratekiln system the bed height is 12 to 23 cm on the preheat

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  • Iron Ore Pellets Induration Solutions Metal 7

    The straight travelling grate consists of a horizontal furnace divided in zones through which a grate moves slowly through each zone exposing the pellet bed to a progressive increase in temperature

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  • Grate kiln systems Metso

    The grate chain travels flat and straight The grate travels through a furnace with several zones that expose the pellets to different temperatures Once the pellets are discharged into the kiln the grate chain returns underneath The grate is driven by a motor with gearbox or hydraulic drive The grate is supported by rollers Rotary kiln

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  • Traveling grates Metso

    After feeding the pellets to the traveling grate the unit operations of green ball drying concentrate dehydration partial calcination and partial induration are performed on a traveling grate whereupon heat transfer occurs in zones of the grate from the cross flow of process gas hot air repeatedly passed through the pellet bed in a modified countercurrent fashion

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  • Introduction to Iron ore Pellets and Pelletizing processes

    The grate kiln process was developed by former Allis Chalmer and the first plant on this technology was constructed in 1960 In the grate kiln process Fig 3 the traveling grate is used to dry and preheat the pellets Material moves on straight travelling grate till it attains the temperature in the range of 800 deg C to 1000 deg C

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  • can I make a grate for my stove Forums Home

    May 01 2013 · Ive seen grates made of stainless steel last but do not let the ash build up to the grates This causes extreme heat and warps and cracks them I would look into a few old school furnaces and see if they use something comparable or can be adapted Here is a grate for an energy mate wood furnace but at 21300 ouch

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  • Pelletizing LKAB

    Drying and preheating increase the strength of the pellets In the process large amounts of energy are generated when the magnetite oxidised to form haematite which reduces the energy requirement by 60 percent As LKAB has two different types of pelletising plant – straight grate and gratekiln plants – the drying process varies slightly

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  • CONTRIBUTIONS TO THE TECHNOLOGY COMPARISON

    The straight grate technology requires the use of hearth layer which ranges between 6 and 10cm in height whereas the green pellet height is typically between 30 to 45cm In the gratekiln system the bed height is 12 to 23 cm on the preheat

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  • CFD model of a straightgrate furnace for iron oxide

    Abstract A threedimensional CFD model of a straight grate furnace for indurating ironoxide pellets was developed for exploring conditions of furnace operation for fluid flow heat transfer and reactions The model includes reactions for natural gas combustion in the gas phase and calcination and magnetite oxidation as well as drying in the pellet bed

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  • A Comparison of Pellet Quality from Straightgrate and

    Oct 29 2018 · This is shown by critically examining the dust generation of pellets from several facilities The dustiness of pellets is associated with overall pellet strength and is an important quality measure of fired pellets on its own A clear distinction between the dustiness of gratekiln and straightgrate fired pellets is established

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  • Mathematical model for a straight grate iron ore pellet

    A mathematical model is developed for induration of the ironore pellets in an industrialscale plant based on the laws of mass heat and momentum transfer Physicochemical processes occurring during the induration of pellets such as drying of moisture calcination of limestone and cokemagnetite reaction are considered to evaluate the gradient

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  • Process integration in an iron ore upgrading process

    Basically a straight grate induration furnace consists of three different zones ie a drying zone a firing zone and a cooling zone and their purpose is to upgrade crude iron ore to the final product of iron ore pellet As an initial step of the project the mass and energy flows within a straight grate induration furnace have been analysed

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  • Understanding Pellets and Pellet Plant Operations – IspatGuru

    Mar 21 2015 · A straight grate system emerged in the industry soon after the shaft furnaces It is essentially a modification of the sintering process The green balls are fed onto the grate continuously to give a bed depth of around 300 mm to 400 mm and are dried in the first few wind boxes by updraft air recuperated from the firing zone followed by downdraft drying using recuperated air from the cooler

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  • Introduction to Iron ore Pellets and Pelletizing processes

    The grate kiln process was developed by former Allis Chalmer and the first plant on this technology was constructed in 1960 In the grate kiln process Fig 3 the traveling grate is used to dry and preheat the pellets Material moves on straight travelling grate till it attains the temperature in

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  • Iron Ore Pelletizing Process An Overview IntechOpen

    Jul 10 2017 · The most widely used industrial processes for pellet induration are the straight grate and the gratekiln The straight grate process is composed of a single furnace where an endless line of pallet cars moves A layer of indurated pellets is arranged at the

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  • Iron ore pelletizing systems Metso

    Both straight grates and grate kilns dry the pellets out in a drying section then bring the pellets up to a temperature of about 800900 °C in a preheat zone then finish the induration process at roughly 12001350 °C The pellets are then cooled to a suitable temperature for transporting to a load out facility

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  • Gratekiln furnace metallurgy Britannica

    Other articles where Gratekiln furnace is discussed iron processing Pelletizing This was followed by the gratekiln and the traveling grate which together account for more than 90 percent of world pellet output In shaft furnaces the charge moves down by gravity and is heated by a counterflow of hot combustion gases but the gratekiln system combines a horizontal traveling grate

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  • China Pellet Equipment Pelletizing Equipment China

    Chain grate machine within the pellets roasting in rotary kiln kiln method after drying and preheating of the pellet shovel plate shovel of the chain grate machine head through the chute into the rotary kiln the material with rotary kiln roll at the same time around move along the axial direction the kiln head is equipped with the burner burner by its fuel burning heat in order to keep the roasting temperature

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