Straight Grate Pelletizing Technology

Iron ore pelletization

The straight grate technology is characterized by an . 436. Iron Ore: ... Schematic of the two main pelletizing processes: (a) straight grate pelletizing process; (b) grate-kiln pelletizing ...

1.2 mtpa iron ore pellet plant | PPT

The document discusses the grate-kiln technology used in a 1.2MTPA iron ore pellet plant. The grate-kiln process employs a straight grate followed by a rotary kiln to evenly heat and indurate the pellets to increase their mechanical properties and avoid fragmentation during transportation. The document then lists important equipment in the ...

1230 Tsutomu Nomura, Kobe Steel | PDF | Iron Ore | Coal

The document discusses Kobe Steel's Pelletizing System (KPS) pelletizing technology. KPS uses a grate-kiln (GK) process that consists of three machines and results in lower energy consumption and superior pellet quality compared to the straight grate (SG) alternative. The document also provides an overview of Kobe Steel's pelletizing projects and technology …

Current News of Primetals Technologies

Primetals Technologies offers straight grate and circular grate pelletizing plants for capacities between 1 and 8mt/pa. The individually optimized plant concept is based on detailed raw material analysis with Primetals Technologies' own pot grate test facility located in Leoben, Austria. For the calculation of the heat balance and the design ...

I-Jet

The premier, proven burner for iron ore sintering and pelletizing plants using straight/traveling grate kilns. I-Jet can also be used in a number of other applications such as hot gas generators, calciners and pre-heat chambers. ... Traveling grate kiln for iron-ore. Product Details: Gaseous or Liquid fuel systems. 0.5 – 20MW; Fuel flexible ...

Iron Ore Pelletizing Process: An Overview

The worldwide pelletizing capacity is divided into 60% for the straight grate process and 40% for the grate-kiln. Both systems are used to produce quality blast furnace and direct reduction

Pellet Plant Presentation-2019 | PDF | Nature | Chemistry

The document discusses the iron ore pelletization process. It begins by defining pellets and describing their properties. It then discusses the history and various technologies used for pelletization, including vertical shaft furnace, straight grate process, and grate kiln process. The document outlines the key steps in a pelletizing plant, including raw material preparation, …

Dynamic simulation of pellet induration process in straight-grate

The heat hardening or "induration" of pellets employs one of the three conventional furnace types: vertical shaft furnace, grate-kiln system, and travelling straight grate. The latter process that was primarily developed by Lurgi and is currently owned by OutoKumpu Technology, accounts for two thirds of the world's installed pelletizing ...

Understanding Pellets and Pellet Plant Operations

Fig 2 Typical schematic diagram of straight grate system. The grate-kiln system depicted in Fig 1 consists of a traveling grate for drying and preheating the pellets to about 1040 deg C, a rotary kiln for uniformly heating …

A Comparison of Pellet Quality from Straight-grate and Grate-kiln

Both straight-grate and grate-kiln furnaces have been accepted in the iron ore industry. Both are considered to be roughly equal when comparing overall costs and expenses versus the final product production rate. However, the product quality of …

siemens-vai/CPT The circle of flexibility

Circular Pelletizing Technology • Proven process technology as utilized in straight-grate pelletizing plants • Induration furnaces with pellet output capacities between 0.8 and 2.5 million t/a • Extremely small footprint and low space requirement • Highly efficient utilization of circular-grate equipment – only 25% of pallet

Introduction to Iron ore Pellets and Pelletizing processes

There are several iron ore pelletizing processes/technologies which are available for the production of the pellets. Some of these are (i) shaft furnace process, (ii) straight travelling grate process, (iii) grate kiln process, (iv) cement bonded processes (Grangcold process, MIS Grangcold Process, and char process etc.), and (v) hydro-thermal ...

(PDF) Iron ore pelletization

of shaft furnace and straight grate technologies. Furthermore, coal can be used in grate ... Figure 15.1 Schematic of the two main pelletizing processes: (a) straight grate pelletizing . process ...

Guidelines For Selecting Pellet Plant Technology

When investors assess the two well proven pelletizing technologies, the straight grate and grate-kiln, the most appropriate choice may not be immediately evident.

Schematic diagram of the straight grate induration process [29].

Download scientific diagram | Schematic diagram of the straight grate induration process [29]. from publication: Iron Ore Pelletizing Process: An Overview | Pelletization and Iron Ore ...

Products › Ironmaking and steelmaking › Iron ore processing

Straight grate technology is producing nowadays more than 75% of the DR grade pellets worldwide and it is the only technology capable to successfully process different source of iron …

PRO MINERALS PVT. LTD.

grate process with the simple, compact and robust mechanical design of a circular dip-rail cooler. The result is a revolutionary pelletizing technology that significantly reduces the size and weight of the typical pellet plant. • Sound process technology as proven in straight-grate pelletizing plants

Study of the induration phenomena in single pellet to traveling grate

Journal of Materials Research and Technology. Volume 2, Issue 4, October–December ... heating, firing and cooling zones of a pelletizing furnace with moving grate. The model uses the measured operational parameters as input data to impose the transient ... Dynamic simulation of pellet induration in straight-grate system. Int J Miner Process ...

Products › Ironmaking and steelmaking › Iron ore processing

Pelletizing: Straight-grate technology; Pot grate: fully automated, single-station unit with air-air heat exchanger; Danieli has developed an innovative "state of the art" design for a fully automated pelletizing pot-grate testing facility. The first of this kind was installed at AHMSA (Altos Hornos de Mexico S.A.) in 2009.

Pelletizing for Direct Reduction and Electric …

Primetals Technologies' unique approach to developing and implementing a traveling-grate pelletizing plant gives steel producers an edge. This approach applies to straight grate as well as circular grate pelletizing …

Pelletizing Process

Grate-Kiln-Cooler process simplifies the process control. When required, the burner has ability to simultaneously fire two fuels, gas and oil, and switch on-stream from one fuel to another.

Pelletization Solutions

With strength and expertise in both Straight Grate and Grate-Kiln technologies, 's equipment, parts and services for pelletizing process are designed to increase capacity, …

Iron ore pelletization

The straight grate technology is characterized by an annual capacity of as high as 9.25 ... Figure 15.1 shows the flow sheets for modern straight grate and grate-kiln pelletizing processes. The straight grate process consists of a single furnace, which is divided into different zones for drying, preheating, and indurating green balls and zones ...

Grate kiln pelletizing plant

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

CONTRIBUTIONS TO THE TECHNOLOGY COMPARISON …

Since the inception of the pelletizing technology in the 1950's when the first industrial plants were designed with capacities of 200 000 t/a, the plant and strand capacity ... 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

Pelletizing

In 1951, due to the small capacity of shaft furnace, large-scale straight grate pelletizing began to be studied in the United States. In 1955, the world's first straight grate pelletizing plant with an annual output of 600,000 tons in Risev Plant. In 1960, the world's first grate-kiln pelletizing plant was built in Humboldt, USA.

Outotec, Finland grants license to Primetals …

Outotec, Finland grants license to Primetals Technologies for straight grate iron ore pelletizing technology for the Indian market. Primetals Technologies, Limited, headquartered in London, United Kingdom, is a …

CPT – Circular Pelletizing Technology – belt …

Straight grate pelletizing plants. 1 – 6 Mt/year. ... Direct firing = low fuel consumption; Simultaneous multi-fuel use; Circular grate pelletizing plants. 0.5 – 2.5 Mt/year. pelletizing plants. Compact plant design ... OPEX reduction; …

(PDF) The grate-kiln induration machine

A comparison of pelletizing process with sintering process shows that large-scale grate-kiln process has more advantages: the iron content of pellet is higher than that of sinter; the process ...

CONTRIBUTIONS TO THE TECHNOLOGY COMPARISON …

Rigorous modeling of the Traveling Grate stage in the iron ore …

The main types of induration processes are Straight Grate (SG) and Grate-Kiln-Cooler (GKC) [4]. GKC is widely used in the mining industry due to its high production capacity, adaptability to different types of materials and fuels, and production of pellets with higher quality, due to better thermal homogenization, when compared to SG [ [5], [6 ...

Metals refining services Straight Grate Pelletizing Plant …

Unique experience in pelletizing Outotec is the only OEM in the world to offer both Straight Grate and Grate-Kiln technologies. With this strength and expertise, 's equipment, parts and services for pelletizing process are designed to increase capacity, reduce fuel & power consumption, extend lifetime

Grate Kiln For Sale – Grate Kiln System | AGICO Grate Kiln Pelletizing

Grate kiln for sale! The grate kiln system is composed of three major pieces of equipment: traveling grate, rotary kiln, and annular cooler. It is widely applied in iron ore pelletizing plants, chemical plants, and other industries. AGICO offers high-quality iron ore pelletizing equipment.