KILN START-UP PROCEDURES

KILN START-UP PROCEDURES Scope of Work and Deliverables: Procedure for kiln start-up after a major turnaround, defining for each type of kiln: Preheating curve and kiln turning schedule Adjustment to the above guidelines, depending on refractory work completed Start-up procedure and strategy to reach full production Record Keeping Procedure for kiln start-up after shutdowns shorter […]

Continue reading

Main Fans in Cement plant

Main Fans in Cement plant by Daniel Brassel / Jan C. Kaminsky (CTS – TPT) Things that I want to talk about… Design and Efficiency of Impellers Fan Equations and Performance Curves Flow Control Operational problems Learning Objectives Know principal impeller designs Understand basics of fan equations and  fan curves Know different types of flow […]

Continue reading

On what depends the grinding efficiency? of Vertical Raw Mill

On what depends the grinding efficiency? of Vertical Raw Mill     Roller specific operating pressure Material quantity on the table Material distribution on the table Roller and table wear profile Dam ring Nozzle and armour ring Water injection onto the table Table rotating speed  

Continue reading

Chapter 3.2 Preheaters and Precalciners by Claus Bech and Alex Mishulovich

Chapter 3.2 Preheaters and Precalciners by Claus Bech and Alex Mishulovich   The rotary kiln, in commercial use since the 1880s, remains the most widely accepted reactor for high-temperature processing of solids, when substantial reaction time and satisfactory homoge- nization are required. Because of the long residence time and the large mass of the kiln […]

Continue reading

Everything you need to know about Crushers in Cement industry

Everything you need to know about Crushers in Cement industry this course belongs to ASEC Academy all rights Reserved  CRUSHERS   SUMMARY The compression type crushers like jaw and gyratory crushers are used for hard and abrasive raw materials. Because of their limited reduction ratio of 3 : 1 to 7 : 1 it is […]

Continue reading

Vertical Roller mills

Vertical Roller mills Main parts of a vertical roller mill Mill body feed Hydraulic system Nozzle and retention ring mill body seperator Vertical roller mill: frame type Polysius: Polroll Gbr. Pfeiffer: MPS Vertical roller mill: rocker arm type Loesche: LM Kobelco: OK   Processes inside a vertical roller mill Grinding The material is trapped between […]

Continue reading

Bag Filters types ,working principles & daily maintenance

Bag Filters types ,working principles & daily maintenance   Dust collection equipment categories: All of the air can be separated dust precipitator apparatus are referred to. Precipitator classification is as follows: 1, according to the principle of separation of dust from gases divided: Using gravity particles themselves: such as: settling chambers, 0625,2625 and the like. […]

Continue reading

By pass system in the dry process

By pass system in the dry process     Introduction It is well known that cement is made mainly from limestone and clay. Both contain the essential oxides: silicon dioxide, calcium oxide, aluminum oxide, and iron oxide needed to form the clinker 4 major components in the rotary kiln. These four oxides exist in limestone […]

Continue reading

How to Extend the service life of refractory in cement rotary kiln

How to Extend the service life of refractory in cement rotary kiln factors affect the service life of the refractories are mechanical stress , thermal stress , production operation conditions  & raw mix design. we will analyze them one by one to reach a method for extending the service life of the kiln Refractories.   […]

Continue reading

ELECTROSTATIC PRECIPITATORS

ELECTROSTATIC PRECIPITATORS   INTRODUCTION An electrostatic precipitator utilises electric forces to separate solid particles, or liquid droplets, from the gas in which they are suspended. The process gas, bearing particulates, is forced in the precipitator to pass over the discharge electrodes between a number of channels formed by collector electrode sheets suspended vertically. Electrostatic forces […]

Continue reading