particulate control for clean environmentsoxnox2017.missionenergy.org/presentations/rv...
TRANSCRIPT
INTRODUCTION TO RIECO
Incepted in 1975 (a wholly owned subsidiary of Sudarshan Chemicals)
Chemical Business Line : Manufacturer of Pigments, Effect Pigments, Agrochemicals,
Turnover FY 16-17 - 170 million USDFY 16-17 - 110 CR INR
Mechanical Business Line :• Environment solutions• Conveying solutions• Grinding solutions• Industrial Mixing Solutions
ORGANIZATION
SUDARSHAN
RIECOPrescient
Colour
IndustrialMixing
Solutions
Pigment & Effects
AgroDivision
Pneumatic Conveying
Systems
Pollution Control Systems
Size Reduction Equipment
Sudarshan Europe
Sudarshan North America
Sudarshan’s and RIECO’s Global Head Office
GLOBAL PRESENCE
Sudarshan South America
Sudarshan China
INFRASTRUCTURE- INDIA
Head office in Pune
Manufacturing facility and R& D lab
in Aalandi Pune, India
Sales Offices
Mumbai, Chennai, Delhi, Pune,
Hyderabad, Kolkata, Baroda
170+ employees strength
TECHNOLOGY PROVIDERS
Intensiv filter- Germany :- Bag filters & Bag Houses
Beth, Germany :- Bag filters and ESPs (Dry & Wet)
CGS, USA :- Cyclones, Wet Scrubbers & Gas
Cleaning plants
Mikropul, UK :- Bag Filters, Grinding mills
KBI, Germany :- Dense phase conveying systems
STAG, Switzerland :- Pneumatic conveying systems
Klein, Germany :- Foundry Equipment's
Cimma, Italy :- Grinding Mills for abrasives
WHAT IS PARTICULATE MATTER (PM)
A Mixture of solid particles and liquid droplets found in the air.
Some particles like dust, dirt, soot or smoke can be seen by a naked eye.
Some are so small, that they can only be detected by an electron microscope.
PM 10 : Inhalable particles smaller than 10 microns in diameter.
PM 2.5 : Inhalable fine particles smaller than 2.5 microns in size.
To imagine the size, our human hair at 70 microns is 30 times larger
than a particle of diameter 2.5 microns!
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HEALTH AND ENVIRONMENT EFFECTS
Particle size is directly linked to the health hazard potential.
Particles smaller than 10 microns cause the biggest problems.
They can get deep into your lungs, and even in your bloodstream!This could affect your lungs and heart leading to problems like:
Premature death for people with heart or lung disease.Non fatal heart attacksIrregular heart beat
Aggravated asthmaDecreased lung functionIrritation of the airways, coughing, difficulty in breathingChildren,Old adults, people with lung,heart problems arethe most affected.
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SOURCES OF PARTICULATE MATTER
Particles come in many sizes and shapes and made up ofhundreds of different chemicals.
Some are emitted directly from a source, such as Construction sites, unpaved roads, fields, smoke stacks or fires
Most particles form in the atmosphere as a result of complexReactions of chemicals such as sulfur dioxide, nitrogen oxidesEmitted from Power plants, industries and automobiles
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SYSTEMS FOR POLLUTION CONTROL
Aspiration systems for dust control
Product collection systems
Flue gas cleaning systems
Dust suppression systems
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INDUSTRIES USING AIR POLLUTION CONTROL EQUIPMENTS
Power Ferrous and Non ferrous metals
Steel Glass
Cement Pulp & Paper
Chemicals Mining
Petro Chemicals Plastics
Detergent Wood Products
Fertilizer
Food/Pharmaceutical
Foundry
Minerals
EQUIPMENTS FOR PARTICULATE CONTROL
Bag filters and Bag houses
Cyclones and Multiclones
Wet scrubbers & Spray towers
Dry and wet Electrostatic precipitators
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TYPE OF BAG FILTERS
1. Mechanical shaker type2. Reverse air bag houses3. Pulse Jet bag Filters4. Cartridge type filters5. Absolute filters
FUNCTIONAL PRINCIPLE OF BAG FILTER
Raw gas inlet
Clean gas outlet
Dust discharge
Cleaning system of filter bags
Filter bags with cages
Gas flow direction
Separated dust
Baffle plate for gas distribution and dust pre-separation
Dust collecting hopper
Dust discharge system screw conveyor, rotary valve etc
DESIGN PARAMETERS- BAG FILTER
APPLICATIONMATERIAL PROPERTIESGAS VOLUMEPARTICLE SIZE DISTRIBUTIONINLET DUST LOADTEMPACR (AIR TO CLOTH RATIO)CAN VELOCITYPRESSURE DROP ACROSS THE UNITOUTLET EMISSION REQUIREDSPACE CONSTRAINTS
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TECHNICAL SPECS OF BAG HOUSE
A. KILN / RAW MILL BAG HOUSE
1. Type : Pulse jet (off line cleaning)
2. Application : To clean kiln / raw mill
exchange gases
4. Gas volume at inlet : 11,18,000 m3/hr for direct
operation
7,80,000 m3/hr for compound
operation
5. Gas temp. operating / peak : 220oC / 260oC
6. Design pressure : (-) 500 mm WC
7. Inlet dust load : 25 gms/m3 for direct operation
71 gm/m3 for compound
operation
8. Filter area : 20,700 m2
9. Air to filter ratio : 1.00 m3/min/m2
10. Outlet emission : < 10 mg/Nm3 on dry basis
CFD FOR ESP
The uniform and streamline gas flow within ESP is the major factor that Governs the ESP performance. We do Flow simulation of gas to ensure desired flow is achieved, the performance.
DESIGN PARAMETERS- ESP
APPLICATIONMATERIAL PROPERTIESGAS VOLUMEPARTICLE SIZE DISTRIBUTIONINLET DUST LOADTEMPMIGRATION VELOCITYPRESSURE DROP ACROSS THE UNITOUTLET EMISSION REQUIREDSPACE CONSTRAINTS
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TECHNCIAL SPECS OF PELLET ESP
DESIGN PARAMETERS
GAS QUANTITY Nm^3/Hr
m^3/Hr. 4,40,000
TEMPERATURE - operating Deg. C 180
STATIC PRESSURE - operating mmWC 350
BAROMETRIIC PRESSURE bar
RAW GAS DUST CONTENT AT ESP INLET GMS/ Nm^3 15
CLEAN GAS DUST CONTENT with all field in
service
mg/ Nm^3 50
Clean gas dust content after 1 field off (N-1) mg/ Nm^3 65
DEISGN PARAMETERS- CYCLONE
APPLICATIONMATERIAL PROPERTIESGAS VOLUMEPARTICLE SIZE DISTRIBUTIONINLET DUST LOADTEMPPRESSURE DROP ACROSS THE UNITOUTLET EMISSION REQUIREDSPACE CONSTRAINTS
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APPLICATIONS OF SCRUBBERS
Acid mist Furnaces
Autoclaves Gas absorption
Building products mfg. Incinators
Blow tanks Kilns
Boilers Lime hydrators/Slakers
Conveyors and transfer points Odor control
Cupolas Packing
Crushers and screens Palletizing
Dissolving tank vents Rendering
Dryers Sand systems
Fumes/VOCs Smelters
TYPES OF SCRUBBERS
Wet Dust scrubbers:-
A. Low energy (P< 12.7 cm of water):-
Centiscrub
Multiscrub C
Multiscrub H
B. Medium energy (12.7 cm < P < 38.1 cm of water)
Dynascrub-I/II/III
Multiscrub- C&H
Ventriscrub
C. High energy scrubber (P > 38.1 cm of water)
Multiscrub- C
Multiscrub- H
Ventriscrub
DESIGN PARAMETERS- WET SCCRUBBER
APPLICATIONMATERIAL PROPERTIESGAS VOLUMEPARTICLE SIZE DISTRIBUTIONINLET DUST LOADTEMPL/G RATIONPRESSURE DROP ACROSS THE UNITOUTLET EMISSION REQUIREDSPACE CONSTRAINTS
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TECHNICAL SPECS OF GCP FOR MBF
GAS CLEANING PLANT
a. Data at outlet of Dust Catcher
Gas Flow Nm3/hr 90,000 (Max), 82,500 (average), 75000 (Min)
Gas pressure mm WG 10,000 (Max), 8,000 (average), 7500 (Min)
Temperature in Deg C 80-300
b. Dust Concentration at GCP Inlet - 12 gm/Nm3 (Max), 8 gm/Nm3 (Min)
c. Particle Size Distribution of dust - + 0.5 mm - Up to 2%
0.2 to 0.5 mm - Up to 9%
0.12 to 0.2 mm. - Up to 10%
0.06 to 0.12 mm - Up to 15%
0.06 mm - Up to 90%
Component % by volume (Wet)
d. Gas Composition at GCP inlet - CO2 - 16.15
N2 - 55.19
CO - 26.70
H2O + HC - 1.24
3. GUARANTEE PARAMETERS FOR GAS CLEANING PLANT
a. Dust Content at outlet of stack - 5 mg/Nm3 or lessfor 800 mm WC at the outlet of septum valve.