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8/13/2019 Boiler Manufacturing
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Boiler
manufacturing
NAME :V S AAKASH SIRUSSHTISEMESTER : 4thENROLL.NO. : 1021140213
Inplant training Program-1
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INDEX Introduction
Classification
Fly press Gap frame press
Hydraulic press
Screw press
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INTRODUCTION
PRESS :
It is a machine by which we can do
cutting and non cutting process byapplying force without removing chip onmetallic or non metallic sheet.
So we can give final shape to the job.
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CLASSIFICATION1. Manual Press:
foot press, arbor press & fly press
2. Power Press:crank press, eccentric press, cam press,toggle press, screw press, rack & pinion
press, hydraulic press, pneumatic press
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FLY PRESS
A Fly Press is amachine tool usedto shape sheetmetal by deformingit or cutting it with
punches and dies.
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GAP FRAME PRESS
A type of press with a C-shaped frame suspendingthe crown over the bedand an open portion in thefront. The open front of
the gap-frame press offerseasy access to the die set.
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SCREW PRESS
A screw press is atype of machinepress in which theram is driven up anddown by a screw.
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Boilers
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Boiler is a closed vessel in which
the heat produced by the
combustion of fuel is transferred
to water for its conversion into
steam at the desired temperatureand pressure.
Broadly speaking, a boiler is a
device used for generating :-
a) Steam for power generation
b) Hot water for heating purpose
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The Boilers may be classified as under:
Horizontal boiler, vertical or inclined boilers
Fire tube and water tube boilers
Externally fired and internally fired boilers
Forced circulation and natural circulation boilers
High, medium and low pressure boilers
Stationary boiler and portable boiler
Single tube boilers and multi tube boilers
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Feed pump
Injector
Economiser
Air pre-heater
Superheater
Steam separator
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The primary requirements of steam generators or
boilers are:
a) The water must be contained safely
b) The steam must be delivered safely in desired conditions
as regards its pressure, temperature, quality and
required rate
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Drying
*- Drying is commonly the last stagein a manufacture process.
*- Dryingis the final removal of waterfrom material (usually by heat)
.Non
thermal drying* 1- As Squeezing wetted sponge2*-Adsorption by desiccant (desiccation) 3*-Extraction.
Purposes of drying
- In pharmaceutical technology, drying is carried out for one or more of
the following reasons:
1-To avoid or eliminate moisture which may lead to corrosionanddecrease the product or drug stability.
2-To improveor keep the good propertiesof a material, e.g. flowability,compressibility.
3-To reduce the cost of transportationof largevolumematerials (liquids)
4-To make the material easyor more suitable for handling.
5-Preservative.
6- The final step in: Evaporation- Filtration- Crystallization.
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Classification of dryers
Based on solid handling(static bed dryer-moving bed-fluidized
bed).
Based on heat transfer(direct dryers-Indirect-IR or radiant heat).
Dryers for Dilute Solutions and Suspensions
The objective of these dryersis tospread the liquidto a large
surface areafor heatand mass transfer for collecting the dry
solid.
Twomain typesare used:
The first, spreadingthe liquid to a thin film.
The second, dispersing the liquid to a sprayof small droplets.
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