blast furnace high top pressure charging system

Bell Less Top The Charging Solution Intralogistics

Paul Wurth has created a complete Bell Less Top family providing charging systems for any blast furnace confi guration and size. The Bell Less Top Family is complemented by Paul Wurth gearboxes and allows for easy retrofi t on bell top charging systems. The gearbox line-up has been upgraded to include the new pressurised cooling (PC) system.

Blast Furnace ValvesIspatGuru

Mar 11 2021 · Bleeder valves provide safety from BF over-pressure. They protect the top of the furnace from sudden gas pressure surges. Typical implementation involves installation of two to three raw gas bleeder valves at the top of the blast furnace uptakes and one on the semi-clean gas-side of the first scrubbing stage. Fig 5 shows a typical bleeder valve.

Emissions and Removal of Gaseous Pollutants from the Top

The measurements were performed at the top-gas scrubber of blast furnace A (BFA) at voestalpine in Linz. BFA is a pressurized blast furnace with a hearth diameter of 12.0 m. The top gas pressure at the furnace top is regulated to 2.3 bar (g). With a working volume of 3125 m 3 BFA reaches a maximum melting rate of 8500 t/day of hot metal. The

Charge material distribution behaviour in blast furnace

Apr 15 2020 · Fig. 1 thus suffices to mimic the blast furnace charging system and such representation has been used in other studies 12 45 46 . Download Download high-res image (218KB) Download Download full-size image Fig. 1. Schematic model of the bell-less top blast furnace charging system with a weigh-hopper and two parallel material bins.

Nippon Steel Engineering s Green Blast Furnace

High temperature blast ①TOP CHARGING SYSTEM. Optimum furnace profile Uniformburden flow in furnece Low energy loss of furnace -Top gas (temperature pressure) 10. 2 ・Temperature of HE-1 outlet is controlled by heat transfer medium flow control valne (XV-1) for over acid dew -point at any time.

Sealing Valve Bell Less Top Blast Furnace Increasing

operated at 2kg/cm2 pressure Bell-less top (BLT) charging system. The Bell-less Top Charging System (BTCS) which is a continuous system for charging raw material into a blast furnace for iron making. The valve casing comprising material gate lower sealing valve and distribution chute assembly is an important unit of the system.

Problems with elevated pressure in the blast furnace

Sep 14 2014 · Abstract Production experience with elevated gas pressure in the blast furnace show that in addition to the associated reduction in life of the charging unit pipelines and equipment in the gas-blast system and the increased energy consumption in the blast system this method does not improve the smelting rate.

RECOMMENDED GUIDELINE FOR IRON STEEL SECTOR

This code of safety is applicable to Blast furnace Dept. of an Integrated Steel Plant. 3. PROCESS In the Blast Furnaces (BF) liquid iron (popularly termed as Hot Metal ) is produced by the process of reduction at high temperature from raw materials like iron ore base mix sinter coke fluxes (limestone / quartzite)

The Effect on Blast Furnace Process of Changed Pellet Size

disturbances. Three quite recent examples of the influence on the blast furnace process of BF No 2 when charging pellets with a particle size distribution containing higher ratios of the fractions 12.5-16mm and 16mm as compared to what is normally charged will be described briefly in this paper. The blast furnace was Table III.

BLAST FURNACE HIGH TOP PRESSURE CHARGING SYSTEM

A blast furnace high top pressure charging system and a method of operating such a system in which burden materials are charged into a receiving hopper which is pressure isolated from the balance of the charging system and thence into a small bell hopper from whence it is charged into the furnace.

Modern Blast Furnace InstrumentsScienceDirect

Oct 01 1988 · This information will be supplied by the cross sonde installed in the various Modern Blast Furnace Instruments Diagnosis of furnace conditions Factor Measure Sensor Burden movement--. descend velocity -----charging interval Sounding number of slip Pressure fluctua----. blast pressure -----blast pressure tion shaft pressure shaft pressure top

Energy Saving Technology for Iron Steel Making Process

Blast furnaceTRT (Top pressure Recovery Turbine system)Pig iron de- P de- S Rotary kilnSponge iron kiln heat recovery system Basic oxygen furnaceOG (Oxygen converter Gas recovery system) Electric arc furnaceElectric arc furnace energy saving Lime calcining kilnHigh efficiency lime calcining kiln

Blast-furnace charging systemResearchGate

The charge material (sinter and pellets) flow and distribution behaviour in the blast furnace overall charging system was investigated using a simplified single lap charging system consisting of a

Modern Blast Furnace InstrumentsScienceDirect

Oct 01 1988 · This information will be supplied by the cross sonde installed in the various Modern Blast Furnace Instruments Diagnosis of furnace conditions Factor Measure Sensor Burden movement--. descend velocity -----charging interval Sounding number of slip Pressure fluctua----. blast pressure -----blast pressure tion shaft pressure shaft pressure top

Main Features of a Modern High Capacity Blast Furnace

Sep 20 2019 · At present improvement of the top pressure has become an indispensable means for normal production in a BF. The top pressure of modern high capacity BFs is normally above 2.75 kg/sq cm. Economical injection of pulverized coalThe purpose of injection of pulverized coal is to save coke and reduce the cost of the HM production.

Sealing Valve Bell Less Top Blast Furnace Increasing

operated at 2kg/cm2 pressure Bell-less top (BLT) charging system. The Bell-less Top Charging System (BTCS) which is a continuous system for charging raw material into a blast furnace for iron making. The valve casing comprising material gate lower sealing valve and distribution chute assembly is an important unit of the system.

Report 5.docxTop Charging System In Bell Less Top(BLT

The whole BLT system is hydraulically operated PLC controlled. Besides achieving perfect burden distribution BLT ensures very good gas sealing at the furnace top so that furnace can be operated at a high top pressure.

th SEM B TECH DEPARTMENT OF METALLURGY AND

Charging system and their advancement Blast furnace layout and its accessories Raw materials deposit Raw materials for producing 1 ton of iron Now days all the furnace operates at high top pressure. Where the exit gas pressure is 1.5-2 atm gauge. The distribution is

ALL ABOUT BLAST FURNACEBlogger

Jul 16 2017 · In this charging system it is extremely difficult to maintain a gas tight seal for a top pressure higher than 1 Kg/Sq cm. Further two bell charging system has limitations towards burden distribution in the blast furnace. Burden distribution plays a big part in achievement of high productivity in the blast furnace.

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The Performance of LKAB s Experimental Blast Furnace in

Jan 18 2011 · Top pressure 1.0 bar Production 36 t/d Figure 2 shows a schematic layout of the EBF plant. Four ferrous material bins four slag former bins and one coke bin facilitate greatly the test of different burden structure during a campaign. The charging system with skip car can serve the furnace well up to a production rate of about 1.85 t/h.

SAFETY GUIDELINES FOR IRON STEEL SECTOR BLAST

Some of critical Equipments/ facilities in Blast Furnace Department are as follows Sl. No. Area Major equipments / facilities . 1. Blast Furnace auxiliary sections Blast Furnace proper with top charging system stoves hot blast supply system Stock House conveyor/skip charging system Fines handling system Dust

Modern Blast Furnace InstrumentsScienceDirect

Oct 01 1988 · This information will be supplied by the cross sonde installed in the various Modern Blast Furnace Instruments Diagnosis of furnace conditions Factor Measure Sensor Burden movement--. descend velocity -----charging interval Sounding number of slip Pressure fluctua----. blast pressure -----blast pressure tion shaft pressure shaft pressure top

Problems with elevated pressure in the blast furnace

Sep 14 2014 · Abstract Production experience with elevated gas pressure in the blast furnace show that in addition to the associated reduction in life of the charging unit pipelines and equipment in the gas-blast system and the increased energy consumption in the blast system this method does not improve the smelting rate.

Preparation and Charging of Blast Furnace BurdenIspatGuru

Apr 26 2020 · Fig 8 Typical charging system of a modern blast furnace with charging conveyor In the interest of high productivity the design of a BF charging system require attention to operating flexibility availability of extra charging capability high screening efficiency as well as a limited number of filling discharge and transfer operations as

th SEM B TECH DEPARTMENT OF METALLURGY AND

Charging system and their advancement Blast furnace layout and its accessories Raw materials deposit Raw materials for producing 1 ton of iron Now days all the furnace operates at high top pressure. Where the exit gas pressure is 1.5-2 atm gauge. The distribution is

Top Charging SystemNippon Steel

Top Charging System Top Charging System Nippon Steel Sumikin Engineering has supplied 80 or more units of blast furnaces and delivered two types of top charging system bell type and bell-less type according to the customer needs. For the stable operation of blast furnace it is important to uniformly charge burden peripherally. Nippon

Emissions and Removal of Gaseous Pollutants from the Top

The measurements were performed at the top-gas scrubber of blast furnace A (BFA) at voestalpine in Linz. BFA is a pressurized blast furnace with a hearth diameter of 12.0 m. The top gas pressure at the furnace top is regulated to 2.3 bar (g). With a working volume of 3125 m 3 BFA reaches a maximum melting rate of 8500 t/day of hot metal. The

for Bell-Less Charging of a Blast Furnace

utilization e ciency of the furnace 1 . Therefore the charging system is of great significance for the operation of the blast furnace. Due to the high temperature high pressure and dusty environment of the blast furnace the internal state of the furnace cannot be measured. Even though furnace top

Advantages and Risks of Blast Furnace Operation at

Computer modeling of blast-furnace smelting with a top pressure up to 600 kPa showed that it is possible to double furnace productivity while reducing coke rate from 490 (base) to kg/ton pig.

Top Charging System NIPPON STEEL ENGINEERING

Our top charging system is equipped with (1) raw material anti-segregation technology and (2) an advanced top charging equipment. The introduction of these enables optimization of the gas flow within the furnace bringing about a reduction in the molten pig iron unit requirement of 1.10–4.40/t-pig (CO 2 conversion 17.2–69.0 kg/t-pig).