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Jan 29, 2020· By reviewing the 25 plants we identify four suitable case study plants to compare technologies (moving grate, fluidised bed and rotary kiln), plant economics and operations.
grate kiln grate kiln crushing grate kiln delhi. The grate cooler is a type of quench cooler. After the cement clinker enters the cooling machine from the rotary kiln, a layer of a certain thickness is laid on the grate plate, and the blasted cold air is passed through the layer moving in the direction perpendicular to each other to quench the clinker.
There is a wide variability of boiler design: horizontal grate, inclined grate, oscillating furnace, rotating furnace (rotary kiln), underfeed stoker, cross-feed furnace, overfeed stoker, bubbling fluidized bed, circulating fluidized bed, side walls burners, roof burners.
Grate Kiln process is unique process designed to evenly indurate pellets to increase its mechanical properties. This process employ a conventional ‘Straight Grate’ followed by a ‘Rotary Kiln’ designed to churn the pellets & thus increase even heating as well to avoid fragmentation in transportation.
Peralatan utama memproduksi pelet dengan rotary kiln adalah rantai mesin kisi, rotary kiln dan dingin melingkar. Dan rantai mesin kisi adalah peralatan yang paling penting. Bagian utama rantai kisi mesin parut tidur, yang kering dan panaskan pelet oleh aliran panas tetap. Parut tidur con ...
A clinker is discharged from the rotary kiln with a temperature of about 1450° C. onto an inlet distribution in the form of a bulk material bed, also known as a clinker bed. The clinker is then moved onto a grate cooler where it is cooled by cooling air and transported from the kiln to further processing stages, usually at first to a crusher.
Cooler is a grate kiln where air is blown from the bottom of the cooler through the grates and the bed in a cross current fashion. Calciner is a vertical riser duct where the bed is fluidized with gas. The Cooler and the Calciner are also divided into number of control volumes in a similar way as in the rotary kiln.
♦ Red river: The infamous red river is one of the most feared problems with grate coolers. Due to segregation, fine clinker has always its preferred side (see above). Different bed resistance on either side and only one air chamber across the entire width often cause fluidization of …
The feed bed acts as a relatively efficient filter for the dusty kiln gas, and in the days before kilns were fitted with proper dust filters, grate kilns emitted less dust (1-2% on clinker) than other kiln types. In the feed bed, a certain amount of fine material is produced as …
grate cooler grate plate. 03-Dec-2016 grate cooler grate plate. Features of design cooler grate plates:1.Material & standard:high manganese steel,alloy steel;JIS,DIN,ASTM,BS.2.Moulding processing:lost wax process or watergla
Grate bed consists of chain link, grate plate, side plate, pipe spacer and protecting sleeve. Grating plate is shaped and casted by heat-resisting alloy steel, its casting tolerance is CT6. The grating plate castings cycle through the grate furnace on a continuous cycle and carry the magnetite iron ore pellets through the process and into the kiln.
Jacking one side of the movable frame with a jack, adjusting the elevation of the movable frame by adding or subtracting shim; 8. Install the grate plate and blind plate after adjusting the grate bed. Adjust the movable frame according to the clearance on both sides of …
We are the leading manufacturers and exporters of grate cooler, industrial clinker cooler and clinker grate cooler. It is basically supplied in two independent entities inlet stationary inclined grate and reciprocating grate cooler, industrial grate cooler, industrial clinker cooler, grate cooler manufacturers, grate cooler suppliers - Chanderpur Works Pvt. Ltd., Yamunanagar, India
2. Compared with fluidized bed and rotary kiln incinerators, mechanical grate incinerators are more suitable for the characteristics of low calorific value and high moisture content of waste in China due to their complete and reliable technology, large capacity, strong adaptability to garbage and convenient operation and maintenance. 3.
The grate covering, which consists of several rows of fixed and moving (with forward and backward movements) alternating rows of grids conveys the furnace forward by lifting movements. The entire grate is divided into different grate zones in which the primary air (combustion air) is supplied evenly and demand-orientedly.
The grate cooler is the main equipment in calcining system of the cement plant. Its main function is to cool and transport the cement clinker. It also provides hot air for rotary kiln and decomposing furnace, and it is the main equipment for heat recovery in calcining system.
A rotary kiln is a pyroprocessing device used to raise materials to a high temperature ... It may consist of refractory bricks or cast refractory concrete, or may be absent in zones of the kiln that are below approximately 250 °C. ... (or thrust) rollers" bearing against the side of tyres, that prevent the kiln from slipping off the support ...
Traveling grate is a machine which makes the iron-containing material in a slow moving line of cloth ball grate plate and use a ring cooler kiln exhaust heat and hot air for drying green balls, preheating, oxidation of consolidation and then directly feed into the rotary kiln. The powder from the traveling grate is collected to the hopper and ...
Grate bed consists of chain link, grate plate, side plate, pipe spacer and protecting sleeve. Grate plate is shaped and casted by heat-resisting alloy steel, its casting tolerance is CT6. The grate plate castings cycle through the grate furnace on a continuous cycle and carry the magnetite iron ore pellets through the process and into the kiln.
Dec 07, 2019· 1. Arrange the relative positions of grate cooler and rotary kiln correctly. 2. Stabilize the thermal system in the kiln, avoid excessive kiln temperature and liquid phase quantity, and carefully observe the fire. 3. Improve the structure of grate bed; 4.
Grate bed consists of chain link, grate plate, side plate, pipe spacer and protecting sleeve. Grate plate is shaped and casted by .heat-resisting alloy steel, its casting tolerance is CT6. The grate plate castings cycle through the grate furnace on a continuous cycle and carry the magnetite iron ore pellets through the process and into the kiln.
Feb 01, 2012· The outlet temperature of pellets in the grate is relatively uniform and has reached 1050 â€™C, the requirement of feeding into the rotary kiln. 2) Based on the pellet characteristics, the deâ€º sign of four zones in the grate shows its rationality, that is, higher drying temperature and longer drying time contribute to high drying ...
The GRATE-KILN System significantly reduces pellet production costs by utilizing coal in place of more expensive liquid or gaseous fuels. Coal is directly fired in the GRATE-KILN System, eliminating need for external combustion chambers, slag tapholes, auxiliary burners or special high priced refractories.
grate cooler manufacturer/supplier, China grate cooler manufacturer & factory list, find qualified Chinese grate cooler manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com.
Aug 01, 2009· The grate-kiln induration system is summarised in Fig. 1, which shows three stages: the grate, the rotary kiln and the cooler. A shallow pellet bed is charged into the grate with, in this case, a depth of 16.5 cm and a bed width of 3.7 m.
The process system is designed so that material transfer from the grate to the kiln occurs when the material on the grate is sufficiently preheated to have the requisite indurate strength for subsequent processing in the rotary kiln. A rotary kiln is a steel round shell with refractory lining that rotates.
Pelletizing machine speed and inclination Angle, pelletizing machine side height and volume fill rate, base and scraper. into the ball time The finished ball requires size 5. Pellet roasting process (grate - rotary kiln method) The grate rotary kiln was first used in cement industry, and it was used in metallurgy industry in 1960s.
Jan 01, 2012018332In GrateKiln process, green pellets are fed on oil or gasfired endless Straight Grate machine where they are dried and preheated. The preheated pellets are then fed to a rotary kiln where their temperature is raised in oxidizing atmosphere to 1290–1400 176C. In induration, ore grains are sintered together with oxidation and slagforming bonds.
1. 1-10. (canceled) 11. A grate cooler plate including an air inlet and air passage openings through which flows air for cooling a cooling stock lying on the grate cooler plate, comprising a rotatable insert having air passage openings in an upper surface of the grate cooler plate.
There are various types of incinerator plant design: moving grate, fixed grate, rotary-kiln, and fluidized bed. Mass Burn System This system burns the entire waste without pre-processing and is mostly used by commercial system throughout the world.