Blower
Content
Presentation to India PAPERTECH 2010
SONIC SOOT BLOWER
SOUND BLAST SONIC POWER COMPANY LIMITED
PAPERTECH 2010 v01
Congratulations to Organisers of PAPERTECH 2010 for a most successful event and wish
Indian Pulp and Paper Industry participants today and all stake holders continuous success and prosperity
With 600 paper mills in operation, a 7.8% projected annual growth, and an estimated nationwide paper demand of 10.5 million tonnes in year 2010, the Pulp and Paper Industry plays an important role in the Indian economy and the next step forward is to become world class.
However, this industry is also the 5 th largest energy consumer and the need is acute to better conserve and manage energy with minimum ecological impact.
Sonic soot blowing is a low investment, cost effective way of cleaning the boiler tubes and restore equilibrium conditions to im rove heat absor tion and facilitate ener mana ement.
Most Pa er Plants meet its heat and ower needs b in‐house thermal power boilers and waste heat recovery boilers; yet ineffective removal of ash deposits from boiler tubes have in
‐ tube overheating failures, and unscheduled shut downs.
Sticky ash in Kraft recovery boilers aside, most ash deposits in these boilers are friable, less sticky and less tenacious, and are existing soot blowing systems in boilers.
So, what is sonic soot blowing and what sets it apart from other soot blowing systems? Is it feasible to target zero unscheduled
What is sonic soot blowing Sonic soot blowing is cleaning of fouled surfaces by compressed air operated sonic soot blowers.
propagate in all directions and impart energy to ash particulates fouled surfaces to be carried away by the flue gas stream. Cleaning is effective even deep into tube bundles leaving no dead corners unclean.
Sonic soot blower
Flue gas stream
Tube bundle
Sonic soot blowing cleans with time setting Sonic soot blowing operates continuously on‐line in successive short cycles where cleaning effect is controlled by cycle time setting (“on” time is in seconds, and “off” time is in minutes). A helpful analogy to explain is to imagine cleaning your table once a year, or once a month, or everyday. Of course, cleaning the table daily requires much less effort to keep it spotless! Now, apply this to your boiler and clean it say every 20 minutes, or 90 times a day instea o just 3 times ai y.
On
Off
Time
Clean tubes absorb more heat and reduce overheating Cleaning 90 times daily with sonic soot blowing
Design conditions of cleanliness Clean tubes improve heat absorption and reduce overheating failures
eat a sor e from flue gas r
Cleaning 3 times daily
More heat loss in flue gas and tubes are prone to overheating
0
8
16
24 hr
What is cleaning in successive short cycles
Initially, ash particulates land on tube surfaces and stay there.
Since “off” time in the cleaning cycle is short, only a small quantity of ash particulates can land and will remain quite loose as
When cleaning cycle starts, sound waves come in and clean up easily. The cycle repeats every few minutes successively
time for it to compact.
surfaces always clean.
Pre‐ requisites to operate in successive short cycles 1. It must not cause any damages to boiler tubes even when the soot blower fails during operation. ( sonic soot blower never damage tubes) 2. Cost of soot blowing medium must be low and its production must not leave eco og ca oo pr n s. ( compressed air is inexpensive) 3. Soot blowing medium must create no ill effects at boiler exit.
4. Soot blowin e ui ment must be reliable eas to maintain and capable of full service between planned outages. ( with only one moving part, sonic soot blower is practically maintenance free for lon term o eration
5. Soot blowing system investment must be low and payback period must be short and realizable; and system must be ca able of bein installed in new or existin boilers easil . (sonic soot blowing system meets these requirements)
Reducing air pollution as a side benefit Cleaning 90 times daily with sonic soot blowing peaks to small batches for easy capture or more effective dis ersion
0
8
16
24 hr
Cleaning 3 times daily
are difficult to capture or disperse and form serious air polluters 3 times daily 0
8
16
24 hr
SOUND BLAST sonic
SOUND BLAST sonic soot blowing system is integration to DCS with industry standard protocols.
products
Sonic soot blowers operate in clusters Sonic soot blowers are usuall installed on boiler LHS and RHS in the tube bundle service spaces and operate in clusters to enhance cleaning effect. As in Cricket fields, its PA system broadcasts through loud speaker clusters for clear transmission to everyone across the field. Below are 2 application cases.
Constructive interference effect
Case 1: Pulp mill 195 t/h recovery boiler This is a 195 t/h pulp mill recovery boiler built in 1993 to fire sludge it had to be shut down every 3~4 months for manual cleaning. 4 years ago, 16 units of model SB38 sonic soot blowers were installed to operate in 4 groups. Today, the sonic soot blowing system runs at 20 sec. “on”/ 3 min. ”off”; and steel ball cleaning is used only twice a week for 12 hours and boiler can last through planned outages. The client is now a repeat customer.
Case 1 real life photos
Case 2: Industrial 490 t/h CFBC boiler This is an industrial 490 t/h coal fired CFBC boiler built in 2004; fouling persisted even with LRSB cleaning and the boiler could only operate at about 90% MCR. 5 years ago, 40 units of sonic soot were installed and operated in 7 groups. Together with the LRSB operate at about 95% MCR. The client was a repeat customer.
Case 2 real life photos
Example on financial savings 210 MWe coal fired boiler Coal consumption p.a.
: 1.03 million tons (approx.) ~
Annual coal cost
,
: INR 3.09 billion
Sonic soot blowing: Direct savings @ 0.75%
: INR 23.2 million
Indirect savings @ 1%
: INR 30.9 million
Total savings p.a.
: INR 54.1 million (INR 5.41 Crores)
Sonic soot blowing system payback period In most cases and considering benefits from efficiency gains only, sonic soot blowing system payback period is usually within 2 years. Any additional benefits from improved performance and reduced .
Typical LRSB
on c soo ower (same range)
Sonic soot blowing in Pulp and Paper Industry Total Cleaning Concept
Sonic soot blowing system can be applied to different insta ations in Pu p an Paper P ant to aci itate system operation and energy management
o er
ag
ter
. . an
Benefits of sonic soot blowing 1. Facilitate energy management: reduce unscheduled outages, boiler damages, and increase overall plant safety, availability, reliability, and production stability. .
, less capacity reduction, and sustains superheated steam temperature to improve turbine performance.
3. Reduce consumption: of steam, ID Fan power, and less system maintenance needs. 4. Reduce air pollution: through successive short cycle .
Customer reference list Reference in India: In final sta es of a l in SOUND BLAST sonic soot blower model SB38 to a 117 t/h AFBC Boiler in Sheshasayee Paper & Boards, Tamil Nadu.
Reference in other countries:
Industry coal fired boiler cleaning photos
Before and After
Industry coal fired boiler cleaning photos Before
After
ESP cleaning photos Negative discharge wires Before
After
ESP cleaning photos Positive collection plates
Before
After
ESP hopper cleaning photos Hopper discharge during sonic soot blowing
Contact us for any soot cleaning problems Sound Blast Sonic Power Company Limited A1, 2/F, 65~67 Bonham Strand, ,
.
Tel: + 852 ‐ 2541 8289 Fax: + 852 ‐ 8148 1175 e‐mail: soundblast@sound‐blast.com Web: http://www.sound ‐blast.com
Our business partner in India: Keromiyons Intech Private Limited # 110, Renga Villas, New Damu Nagar, – , , Tel: +91 422 4214124 Fax: +91 422 4214125 . Web: http://www.keromiyons.com
‐
.
Thank You
SONIC SOOT BLOWER
SOUND BLAST SONIC POWER COMPANY LIMITED
PAPERTECH 2010 v01
Congratulations to Organisers of PAPERTECH 2010 for a most successful event and wish
Indian Pulp and Paper Industry participants today and all stake holders continuous success and prosperity
With 600 paper mills in operation, a 7.8% projected annual growth, and an estimated nationwide paper demand of 10.5 million tonnes in year 2010, the Pulp and Paper Industry plays an important role in the Indian economy and the next step forward is to become world class.
However, this industry is also the 5 th largest energy consumer and the need is acute to better conserve and manage energy with minimum ecological impact.
Sonic soot blowing is a low investment, cost effective way of cleaning the boiler tubes and restore equilibrium conditions to im rove heat absor tion and facilitate ener mana ement.
Most Pa er Plants meet its heat and ower needs b in‐house thermal power boilers and waste heat recovery boilers; yet ineffective removal of ash deposits from boiler tubes have in
‐ tube overheating failures, and unscheduled shut downs.
Sticky ash in Kraft recovery boilers aside, most ash deposits in these boilers are friable, less sticky and less tenacious, and are existing soot blowing systems in boilers.
So, what is sonic soot blowing and what sets it apart from other soot blowing systems? Is it feasible to target zero unscheduled
What is sonic soot blowing Sonic soot blowing is cleaning of fouled surfaces by compressed air operated sonic soot blowers.
propagate in all directions and impart energy to ash particulates fouled surfaces to be carried away by the flue gas stream. Cleaning is effective even deep into tube bundles leaving no dead corners unclean.
Sonic soot blower
Flue gas stream
Tube bundle
Sonic soot blowing cleans with time setting Sonic soot blowing operates continuously on‐line in successive short cycles where cleaning effect is controlled by cycle time setting (“on” time is in seconds, and “off” time is in minutes). A helpful analogy to explain is to imagine cleaning your table once a year, or once a month, or everyday. Of course, cleaning the table daily requires much less effort to keep it spotless! Now, apply this to your boiler and clean it say every 20 minutes, or 90 times a day instea o just 3 times ai y.
On
Off
Time
Clean tubes absorb more heat and reduce overheating Cleaning 90 times daily with sonic soot blowing
Design conditions of cleanliness Clean tubes improve heat absorption and reduce overheating failures
eat a sor e from flue gas r
Cleaning 3 times daily
More heat loss in flue gas and tubes are prone to overheating
0
8
16
24 hr
What is cleaning in successive short cycles
Initially, ash particulates land on tube surfaces and stay there.
Since “off” time in the cleaning cycle is short, only a small quantity of ash particulates can land and will remain quite loose as
When cleaning cycle starts, sound waves come in and clean up easily. The cycle repeats every few minutes successively
time for it to compact.
surfaces always clean.
Pre‐ requisites to operate in successive short cycles 1. It must not cause any damages to boiler tubes even when the soot blower fails during operation. ( sonic soot blower never damage tubes) 2. Cost of soot blowing medium must be low and its production must not leave eco og ca oo pr n s. ( compressed air is inexpensive) 3. Soot blowing medium must create no ill effects at boiler exit.
4. Soot blowin e ui ment must be reliable eas to maintain and capable of full service between planned outages. ( with only one moving part, sonic soot blower is practically maintenance free for lon term o eration
5. Soot blowing system investment must be low and payback period must be short and realizable; and system must be ca able of bein installed in new or existin boilers easil . (sonic soot blowing system meets these requirements)
Reducing air pollution as a side benefit Cleaning 90 times daily with sonic soot blowing peaks to small batches for easy capture or more effective dis ersion
0
8
16
24 hr
Cleaning 3 times daily
are difficult to capture or disperse and form serious air polluters 3 times daily 0
8
16
24 hr
SOUND BLAST sonic
SOUND BLAST sonic soot blowing system is integration to DCS with industry standard protocols.
products
Sonic soot blowers operate in clusters Sonic soot blowers are usuall installed on boiler LHS and RHS in the tube bundle service spaces and operate in clusters to enhance cleaning effect. As in Cricket fields, its PA system broadcasts through loud speaker clusters for clear transmission to everyone across the field. Below are 2 application cases.
Constructive interference effect
Case 1: Pulp mill 195 t/h recovery boiler This is a 195 t/h pulp mill recovery boiler built in 1993 to fire sludge it had to be shut down every 3~4 months for manual cleaning. 4 years ago, 16 units of model SB38 sonic soot blowers were installed to operate in 4 groups. Today, the sonic soot blowing system runs at 20 sec. “on”/ 3 min. ”off”; and steel ball cleaning is used only twice a week for 12 hours and boiler can last through planned outages. The client is now a repeat customer.
Case 1 real life photos
Case 2: Industrial 490 t/h CFBC boiler This is an industrial 490 t/h coal fired CFBC boiler built in 2004; fouling persisted even with LRSB cleaning and the boiler could only operate at about 90% MCR. 5 years ago, 40 units of sonic soot were installed and operated in 7 groups. Together with the LRSB operate at about 95% MCR. The client was a repeat customer.
Case 2 real life photos
Example on financial savings 210 MWe coal fired boiler Coal consumption p.a.
: 1.03 million tons (approx.) ~
Annual coal cost
,
: INR 3.09 billion
Sonic soot blowing: Direct savings @ 0.75%
: INR 23.2 million
Indirect savings @ 1%
: INR 30.9 million
Total savings p.a.
: INR 54.1 million (INR 5.41 Crores)
Sonic soot blowing system payback period In most cases and considering benefits from efficiency gains only, sonic soot blowing system payback period is usually within 2 years. Any additional benefits from improved performance and reduced .
Typical LRSB
on c soo ower (same range)
Sonic soot blowing in Pulp and Paper Industry Total Cleaning Concept
Sonic soot blowing system can be applied to different insta ations in Pu p an Paper P ant to aci itate system operation and energy management
o er
ag
ter
. . an
Benefits of sonic soot blowing 1. Facilitate energy management: reduce unscheduled outages, boiler damages, and increase overall plant safety, availability, reliability, and production stability. .
, less capacity reduction, and sustains superheated steam temperature to improve turbine performance.
3. Reduce consumption: of steam, ID Fan power, and less system maintenance needs. 4. Reduce air pollution: through successive short cycle .
Customer reference list Reference in India: In final sta es of a l in SOUND BLAST sonic soot blower model SB38 to a 117 t/h AFBC Boiler in Sheshasayee Paper & Boards, Tamil Nadu.
Reference in other countries:
Industry coal fired boiler cleaning photos
Before and After
Industry coal fired boiler cleaning photos Before
After
ESP cleaning photos Negative discharge wires Before
After
ESP cleaning photos Positive collection plates
Before
After
ESP hopper cleaning photos Hopper discharge during sonic soot blowing
Contact us for any soot cleaning problems Sound Blast Sonic Power Company Limited A1, 2/F, 65~67 Bonham Strand, ,
.
Tel: + 852 ‐ 2541 8289 Fax: + 852 ‐ 8148 1175 e‐mail: soundblast@sound‐blast.com Web: http://www.sound ‐blast.com
Our business partner in India: Keromiyons Intech Private Limited # 110, Renga Villas, New Damu Nagar, – , , Tel: +91 422 4214124 Fax: +91 422 4214125 . Web: http://www.keromiyons.com
‐
.
Thank You
