Folleto Filtro y Depurador - Dust Collection & Gas Scrubbing (Ingles)

7/29/2019 Folleto Filtro y Depurador - Dust Collection & Gas Scrubbing (Ingles)

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Process B.V.

Dust Collection & Gas Scrubbing


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Dust Collection & Gas Scrubbing

TEMA Process B.V. oers Dust Collection & Gas

Scrubbing equipment and systems or emission

control, gas cleaning and product recovery.

TEMA Process designs the Dust Collection & Gas

Scrubbing equipment and systems in accordance

to the latest standards, local conditions and product

specications.

Tema Process Dust Collection & Gas Scrubbing Line

include:

Jet bag FiltersCyclones

Venturi Scrubbers

Packed Tower Scrubbers

Dry Scrubbers

Cyclones in combination with Jet bag Filters

Cyclones in combination with Packed Tower

Scrubbers

Figure 1.0 shows the Eciency / Particle size relationship o above mentioned line o equipment.

Figure 1.0


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Jet bag Filter under construction

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Jet bag Filters

Design o Jet bag Filters (Process Technical)

TEMA Process design or continuous Jet bag Filters

is based on the process data and local conditions

and can be oered Taylor-made suitable or theapplication.

Important criteria or the design are:

Gas volume in Nm/h

Chemical composition o the gases

Moisture content o the gases

Temperature o the gases

Dust in kg/h

Characteristics o the dust,like corrosive, abrasive etc.

Particle size range o the dust

Local emission standards

Explosion resistant (ATEX)

Hygienic design

On line or o line systems

Materials o construction


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Design o Jet bag Filters (Construction & Layout)

Based on process technical data the lter area is

determined and the construction o the Jet bag

Filter, suitable or the project, can be designed in

The lter top part can be designed based on ollowing variables:

Number o covers

Layout o the covers

The covers can be located on one side

or 2 sides o the air buer tanks

Under each cover there are 4 rows in width

and 8 16 lter bags in depth

Materials o construction can be selected

in accordance to the table o construction

materials (page nr. 8)

Jet bag Filter Top part ( partly open)

detail supported by special parametric sotware as

partly shown below:

Filter 3-3-16 Parameters


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Design o Jet bag Filters (Construction & Layout))

The bags are protected by standard wear

protection shields. ( see page 6)

The maximum number o covers on one side

o the buer tanks are 4 (maximum 4 covers

on each side!)

Top view o Filter top part without covers

Top part with covers

The top part is standard made o stainless steel

and is isolated.

The top part can be provided with double covers

(see construction detail on page 6).


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Design o Jet bag Filters (Construction & Layout)

Length o lter bags are availablerom 2000 mm 5000 mm

Bag support cages can be split in length in

several parts or one lter bag with easy

connection to reduce space or replacement

o the lter material (see page nr. 8)

The textile bags can be supplied in dierent

qualities according to table gure 2.0 (page nr. 7)

The lter housing is designed in several modules

Inside view top-part o Bag Filter, bags,

support cages & wear protection shields

Wear protection

o Filter Bags

Double cover, isolated

The dust is collected in a tapered chute withan integrated spiral screw or dust discharge

The location o the screw discharge also can

be chosen to meet local dust collection

or transport

The 3D design drawing is the base or laser

cutting- and production drawings

An enormous number o construction variations

are possible considering the variables in number

o covers, number o bags in the length rows

and lter bags length


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Design o Jet bag Filters (Filter bags)

Bottom view rom Filter bags

Filter bag or most demanding solutions like: High temperatures

Micro dust particles

Fiber

Recomendedcontinuousoperation

Temperature(Dry Heat)

WaterVapor

SaturedCondition

(Moist Heat)

Max.(short time)Operation

TemperatureDry heat

SupportsCombustion

RESISTANCE TO

AlkalinesMineralAcids

OrganicAcids

OxidizingAgents

OrganicSolvents

PP94 C

200 F94 C

200 F107 C225 F Yes 5 5 5 3 5

PES132 C270 F

94 C200 F

150 C300 F

Yes 2 2 2 3 3

PAN125 C260 F

125 C260 F

150 C300 F

Yes 2 4 5 3 4

ARAMIDNOMEX

204 C400 F

177 C350 F

240 C465 F

No 3 2 2 1 4

PTFE260 C500 F

260 C500 F

290 C550 F

No 5 5 5 5 5

PPS190 C375 F

190 C375 F

232 C450 F

No 5 5 5 2 5

POLYIMIDEP84

260 C500 F

195 c383 F

300 C580 F

No 2 4 4 4 5

FIBER GLASS260 C500 F

260 C500 F

290 C550 F

No 2 4 4 5 4

Legend: 1 - Poor; 2 - Fair; 3 - Good; 4 - Very Good; 5 - Excelent

NOMEX is registed Trademark o E.I. DU PONT DE NEMOURS

P84 is registered Trademark o LENZING A.G.Figure 2.0

Chemical unriendly environment

Electrostatic dust particles

Properties o Textile Fibers or Dry Filtration


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Design o Jet bag Filters (Details o construction)

Support cage in flter bagHow to install a flter bag

Top o support cage1/1 steel wire

support cage

steel wire

support cage


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Design o Jet bag Filters (Details o construction)

Duplex steel

Stainless steel AISI 304(L),

316(L), 904L, 254 SMO

Titanium

Dust discharge spiral screw

Assembly o Filter Top part

Mild steel

Heat resistant steel 16Mo 3

Heat resistant stainless steel

153 MA, AISI 321, 1.4878

Materials o construction


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Cyclones

A Cyclone is a relative simple device that uses

centriugal orce to separate larger particles rom

air streams.

It is a high capacity / high eciency separator ( gure

3.0) that also can be used in combination with fuidbed Dryers / Coolers, Jet bag Filters, Packed Tower

Scrubbers and other process equipment.

Diameters rom 400 to 2000 mm.

Materials of construction

Mild steel

Heat resistant steel 16Mo 3

Heat resistant stainless steel

153 MA, AISI 321, 1.4878

Duplex steel

Stainless steel AISI 304(L),

316(L), 904L, 254 SMO

Titanium

Wear resistant design

Figure 3.0


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High capacity

Cyclones

High efciency

Cyclones


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Venturi Scrubber

Venturi scrubbers are used to remove particulate

matter rom a gas stream. A Venturi Scrubber

consist o a contact section called a venturi section

in combination with a droplet separator section.

Exhaust gas with dust is ed into the venturi sectionwhere it passes through a water mist at the venturi

throat at high velocity. This results in thorough

mixing o water droplets and dust particles which

agglomerate to orm larger particles which are

subsequently removed rom the gas in the separator

section.

The water supply units and spraying systems allow

recirculation o water with high dust contents. These

systems are used or cleaning particulate matter

rom exhaust gas with stringent emission level,

soluble dust mainly in the mineral and chemical

industry.


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Packed Tower Scrubber

Packed tower scrubbers are used to remove

particulate and / or vapor contaminants rom an

exhaust gas stream by way o dilution or absorption.

A packed tower is an ecient method o carrying

out mass transer between gas and liquid phases.Packed tower scrubbers incorporate packing media

to acilitate intimate contact between a scrubbing

liquid and gas to be scrubbed.

Applications are: reduction o dust or gaseous

emission levels, product recovery, air pollution and

odor control.

In countercurrent scrubber operation, the gas

fows upward through the packing material, while

the liquid fows downward by gravity through the

packing material. The liquid wets the suraces o the

packing material, providing a large amount o surace

area or diusion o one or more components o the

gas stream into the liquid stream, thereby cleaning

the gas.


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Adsorption o acidic gases and organic compounds

occurs in the reaction ducting and in the dust cake

on the abric lter bags.

The unused and recycled adsorbent (Ca(OH)2),

sodium bicarbonate, activated carbon) are injectedinto a reacting duct and then dispersed over the

complete lter area.

The nal emission levels on HF, HCL, SOx and organics

is depending on the used adsorbent, stoichiometric

value and operating temperatures.

For smaller systems the adsorbent is premilled

and supplied in Big-Bags on larger systems on site

milling and silo-storage can be used.

Dry Gas Scrubbing


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Double Jet bag Filter

Fluid bed Deduster

Special Applications


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Process B.V.

Europaweg 5b8181 BG Heerde The Netherlands

postal address

P.O. Box 19

8180 AA Heerde The Netherlands W B 9 0 6 / 0 5 . 2 0 1 2

T +31 (0) 57 857 86 50F +31 (0) 57 857 86 69

www.temaprocess.com

[email protected]

Folleto Filtro y Depurador - Dust Collection & Gas Scrubbing (Ingles)

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