Boilersinfo Boiler and Mechanical Power Digital Library

“ (FBC) Fluidized bed combustion is a combustion technology used to burn solid fuels in steam boilers.” In Fluidized Bed Combustion Boiler technology When air or gas is passed through an inert bed of solid particles such as sand supported on a fine mesh or grid, the air initially will seek a path of least resistance and pass …

In the water tube boiler the upper drum (steam drum) provides for separation of steam from water. It also provides liquid holdup capacity (typically 10 to 60 seconds) to allow for a dynamic response to load changes without losing liquid in the downcomer and riser tubes. The size of the …

Pressure vessels and Boiler Inspection are done to determine the amount of maintenance required to have equipment operate properly until the next turnaround. A comprehensive equipment history must be maintained that includes conditions found during inspection and testing, maintenance work done, changes made, and date of each. ASME Code Standards …

Boiler design is the process of designing boilers used for various purposes. The main function of a boiler is to heat water for steam generation. Steam produced can be used for a variety of purposes including space heating, sterilization, drying, humidification and power generation. The temperature or condition of steam required for these applications is different, so how …

Many hazards are associated with welding and cutting safety , but as in any other operations they can be controlled by appropriate preventive measures. Unless these measures are taken, the hazardous situations can easily give rise to personnel injury and/or material damage. Welding and cutting hazard examples are:- Electric shock …

Boiler Water Treatment is necessary to Producing quality steam on demand depends on properly managed water treatment to control steam purity, deposits and corrosion.There are two main types of boiler feed water treatment Internal boiler Water Treatment method and external boiler water treatment. A boiler is the sump of the boiler …

Stoker Fired Boiler are classified according to the method of feeding fuel to the furnace and by the type of grate. The main types of stokers are: Chain-grate or travelling-grate stoker Spreader stoker boiler Travelling Grate or chain grate Stoker Boiler In Travelling Grate  boiler coal is fed at one …

This is simplest type of a fire tube boiler. A simple vertical boiler produces low Pressure and small quantity of steam. It occupies very less space so it is used where limited space is available. We discuss about simple vertical boiler working design and its Parts. Simple vertical boiler diagram …

The packaged boiler is so called because it comes as a complete factory-assembled Package with all mountings,  accessories and control instrumentation are installed on it. Once it delivered to site, boiler requires only the steam, feed water pipe line. fuel supply connections and electrical connections to be made for package …

Electrostatic precipitator meaning an efficient flue gas cleaning device  ESP means Electrostatic precipitator is a device have been used for over half a century to control particulate emissions or dust cleaning device in many industries like power plants boiler ,cement and steel mills. Electrostatic precipitators have a very high collection …

Theory of PH The quantitative measurement of the acidity or basicity of a solution is called pH of the solution. It is defined as the negative logarithm of hydrogen ion concentration of a solution. pH       =       -log    [ H+ ] If the pH of …

This Steam Blowing procedure is intended to provide general application guidance and establish controls during Steam Blowing of piping and equipment. The purpose of steam blowing, prior to start-up of a new unit, is to remove any foreign material in the superheater and steam piping after the erection completion. Considerable …

Boiler Alkali boil out is carried out to remove material such as lubricants, oil and rust. During manufacturing seamless steel tubes, mill scales are bound to be formed, and some of these can remain inside. During fabrication and erection of the pressure parts, some amount of oil and lubricants can …

We will discuss important steps involved in Boiler gas tightness test procedure. Close all the dampers in the grate hopper of the boiler. Run the FD fan and open all the dampers excluding the dampers in the grate hopper. Keep air pressure and running time as approved by design. Detect …

Boiler Refractory dry out is to ensure proper drying, curing of refractory applied on furnace and other components. The refractory usually undergoes considerable chemical changes, during initial heating. Controlled heating, through these reactions ensures maximum strength. While heating, there must be free air flow over the system to ensure removal …