mill descaling system

OPTIMIZING DESCALING OPERATIONS

A steel mill experienced consistent maintenance problems with their descaling pump and asked Hydro to implement upgrades and modifications to increase pump reliability. Running clearances were reduced and concentricities were returned to 0.001" T.I.R. which allows the pump to be rebuilt with tighter fits.

Steel Descaling: Rotary Descaler Lines & Stationary ...

Running the descaler pump at constant speed wastes energy and water, and heavy maintenance is required on the motor, bypass valves, and the pump. Control system tests in a steel mill using a variable speed pump showed annual electrical savings of 1,320 MWh/year. With an electricity cost of $0.10 per kWh, the savings are $132,000 per year.

Descaling System for a Rolling Mill for Stainless Steel ...

Jun 01, 2016· Hydro-mechanical descaling process. In hydro-mechanical descaling processes the jets are formed by special descaling nozzles which are arranged on spray headers in a so called descaling box (or mill descalers) through which the product (slab, strip, billet, bloom, beam blanket, etc.) travels. Working pressure range from 80 to 450 bar.

Chapter 15 - Chemical Cleaning Of Steam Generator Systems ...

Descaling can also be used before or after a welding process, depending on your needs. Prior to welding, it is critical that weld joints and parts are free of mill scale and other contaminants. These foreign substances can potentially degrade the part's metal properties and lower corrosion resistance.

Descaling Spray Applications | Lechler USA

RUSSELL TWIN 8 and RUSSELL TWIN 7 Mill Relining Machines are also available for large SAG/AG mills providing two, completely independent, Mill Relining Systems in the one mill. The value of having two independent machines operating is in the fact that the actions of one machine do not distort the other.

Kamat: Hydromechanical descaling

a definite effect on the type of Mechanical Descaling System chosen for rod prep. For example, this would call for an aggressive cleaning Mechanical Descaling System as compared to a lower operating cost, non-aggressive system. One last point on rod condition …

Sheet metal descaling system for hot rolling mill plant

Descaling is the process of removing oxide deposits from a heated stock, either before or during forging operations. Scales are formed on a metal surface during heat treatment processes. Oxide scales discolor the metal surface and hinder subsequent finishing operations.

Liner Placement | Equipment | Russell Mineral Equipment

Narrow mills with large gaps between spray events, allow the use of smaller delivery pumps and accumulator systems and are ideally suited for piston pump use. ADVANTAGES OF A NEW DESCALING SYSTEM: • Excellent plate surface quality • Longer mill roll life • Easy access for header maintenance • Quality components for low maintenance

Descaling | Lechler

The unloading system is a soft action solenoid control system which allows the pump to run without generating further pressure. The pump continues to idle in a pressurised standby condition so that it can quickly and efficiently return to the pressure and flow settings dictated by the grade of steel which is passing through the descaling plant.

Billet descaling - YouTube

DESCALING SYSTEM. The range of Inoxihp pumps and valves for the steel industry meets the demands for descaling any type of surface, both with direct pump systems and hydropneumatic accumulators.

Efficient and effective descaling in the Steel industry

The steel industry is one of the biggest and most important industries worldwide. It has always been a major driving force of the economy. Its products are indispensable, for example, in metal processing, automotive manufacturing, mechanical engineering and in the construction industry.

Industrial Descaling Systems & Chemicals | Goodway ...

Narrow mills with large gaps between spray events, allow the use of smaller delivery pumps and accumulator systems and are ideally suited for piston pump use. ADVANTAGES OF A NEW DESCALING SYSTEM: • Excellent plate surface quality • Longer mill roll life • Easy access for header maintenance • Quality components for low maintenance

Chemical Descaling Services | Descaling Methods

In part because further descaling is not particularly practical once finish rolling begins, the #2 Scale Breaker is the last opportunity to remove oxidation before the finished hot-rolled strip is coiled. Typically, the descaling system in the Hot Strip Mill is very effective at removing primary (from the furnace) and secondary (regrown

Matej Sinozic - Site/Construction Manager - Danieli Systec ...

Hydro-mechanical descaling process. In hydro-mechanical descaling processes the jets are formed by special descaling nozzles which are arranged on spray headers in a so called descaling box (or mill descalers) through which the product (slab, strip, billet, bloom, beam blanket, etc.) travels. Working pressure range from 80 to 450 bar.

CNB - Method for controlling surface chromatic ...

Mechanical Processes for Descaling of Steel Scale is the product of oxidation which takes place during hot rolling. The oxidation and scale formation of steel is an unavoidable phenomenon during the process of hot rolling which involve reheating of steel in a reheating furnace, multi-pass hot rolling and air-cooling in the inter-pass delay ...

The water descaling system uses high pressure descaling ...

Descaling Steel hydromechanically With KAMAT high-pressure pump systems, slabs and billets in rolling mills can be efficiently descaled hydromechanically. With the annealing of steel, oxygen reacts with iron on the hot metal surface. Iron oxides, so-called scale, arise.

APPLICATION: STEEL MILL DE-SCALING

We have created an entire descaling plant for a customer steel mill, an international leader in sheet metal manufacturing.. The descaling system has a fundamental function inside a hot rolling mill plant: it eliminates the slag or the surface calamine present on the metal by projecting metallic grit. In addition to superficially cleaning the sheet metal, the descaling system, equipped with 600 ...

Energy saving and process optimization in Hot Strip Mill ...

Mill scale, a dense magnetite layer produced on steel surfaces during fabrication, is subject to fracture and erosion during system operation. Because the exposed metal is anodic to the mill scale, these surface cracks are potential corrosion sites.

Steel Industry Pump Repair | Hydro, Inc.

Sep 11, 2015· Descaling is the process of removing iron oxide scale layers from the hot steel surface by the means of high pressure water jets arranged in a so-called descaling box (or 'mill descaler ...

conventional hot strip mill for steel. There are descaling ...

Dec 03, 2015· The hot slab is placed on the entry roller table which carries it into the roughing mill through a scale breaker. Descaling and sizing of slab. Descaling of heated slab is a must in the hot strip mill for attaining good surface quality of the hot rolled strip.

Descaling – Metallurgical Processes

ScaleBlaster is an electronic descaling system that is installed on the water line. It does not require cutting into the pipe and is non-invasive. It provides year-round water conditioning and lime scale buildup prevention and removal.