Maesod boiler training
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Transcript of Maesod boiler training
BOILERBOILERMae Sod Clean Energy Co., Ltd.Mae Sod Clean Energy Co., Ltd.
IJTIJTIJTIJT
Start
Normal stateB4
B9
B6
B7 B8
BOILER
MILL
B1
B3
B2
B5
Belt sizeB1 ���� 1000 mm.BW.x33.5 M.L. 11 kw
B2 ����1000 mm.BW.x14.7 M.L. 7.5 kw
B3 ���� 1000 mm.BW.x214 M.L. 30 kw
B4 ���� 1000 mm.BW.x14.7 M.L. 7.5 kw
B5 ���� 1200 mm.BW.x43 M.L. 22 kw
B6 ���� 900 mm.BW.x38 M.L. 11 kw
B7 ���� 900 mm.Bw.x73 M.L. 15 kw
B8 ���� 1500 mm.BW.x9 M.L. 5.5 kw
B9 ���� 900 mm.BW.x89 M.L. 11 kw
INTER LOCK
BELT CONVEYOR NO.START Normal state
FORM RUNING NO. FORM RUNING NO.
B.1 OFF ▬ ON 9
B.2 ON 2 ON 2
B.3 ON 1 ON 1B.3 ON 1 ON 1
B.4 ON 4 ON 4
B.5 ON 3 ON 3
B.6 ON 5 OFF ▬
B.7 ON 6 OFF ▬
B.8 ON 7 OFF ▬
B.9 ON 8 ON 8
FURNACE
DRUM
Steam BoilerCap. : 95 TPHPres. : 60 BarTemp. : 500°CF.W.P. : 160°C
Bag. feed : 4 set
Bag. Ext. : 13000kg/hr
STOKER
ก������ �� �����,��,�ก������������ IJT Boiler
Boiler �������������� ���!�� �" 2 $%�&
�'������� ������� "����&(����! ��� )��&(����!!��!�*��"$!!���)���*+!�!���
(,�� Boiler �-$ �"(�*,���%ก�*+! 4 �%(!)�/%0 &
Air & Gas system
Water & Steam systemWater & Steam system
Fuel Handling system
Ash Handling system
superheat
economizer
200 �C
economizer160 �C800 �C
COMBUSTION AIR SYSTEM
ก���'����� & *1�ก���$� ��&�����(%��� �����ก�� Oxygen
�� " �",�)���ก�-ก���'����� ,�2����%(!*��ก� �� 4 $%�&
Oxygen , Fuel , Fuel ,
Heat(&(����!)��� Chemical reaction(*1�ก���$��&��)
�� ")-ก42�� �"�� �� 4 $%�-�ก�%�( ก���'�����,����"�2�!��������� �",�-���!�!2%�*�-�������"�!5"��")-��-��$�*ก���'�����ก4,��$6-�
�� ����� & ��� �"�'������-����)��'��2����!&(���� ����� & ��� �"�'������-����)��'��2����!&(����!�-$ก���'����� )! �"!�� �� ����� �")��)!ก���'�����& ��!�-$ก���'����� )! �"!�� �� ����� �")��)!ก���'�����& ก�ก�$ก�ก�$
Bagasse analysisBagasse analysis
Hydrogen : Hydrogen : 33..04 04 %%Carbon : Carbon : 2323..24 24 %%Oxygen : Oxygen : 2222..08 08 %%Moisture :Moisture : 5050..0 0 %%HHV : HHV : 22722272Kcal / Kg Kcal / Kg
�� ")��ก���'�����!��!,����7�89
Turbulence �� "'���� �����ก���ก�:$%� �"(�5 ���
Time ��$��(��)!ก���'�����
)!��(!�ก�� �",��'����� �� �����ก�ก�$ 2�'��ก��ก;��,! $%� �"(�5 �� "�'��������(ก4)��&(����!ก�� 6ก0&9*��ก�)!�� �����,�'��ก���ก;��,! �2%,������$ 3 &9*��ก�� %�!��! �"�'����� &
Carbon Hydrogen Sulphur
Carbon ��*���$�!9)!ก���'�������ก �"�6- *����8��ก �"�6-����'������-�%�$ Sulphur ,���*=/����ก �"�6- �����ก%)���ก�-����> �2%ก�ก�$���*�9�;4!29
� sulphur !�$��กOxygen �"��$7%)!�� ����� ��%���$� �" ��)��ก%*���$�!9)-0�-�Nitrogen ;5"�-$*ก2����(��%2�-�� �2%,��������(�ก��&9*��ก� "!)!���(%�ก���'����� �ก�-�*+!����>�5�!���-����2�&(�&6�
Ash �*+!&��;5")��?���$���4 ��%2�-�� ��)���ก�-*=/�� ���$*��ก�� - �*+!�%(!*��ก���� ����� �"2��7/�*�-$�*�%�*���$�!9 - �*+!����26)���ก�-ก��ก�-ก�%! (Corrosion) - ก���5กก�%!(Erosion) ;5"������!���*�7%ก���2ก��ก ���$��$ - ���*��ก���6- ��$ *=/�� �",�2�ก��,�- Ash
%���%�!���(�ก�!���$ก(%� WaterWalls
&%�&(�&6���2�A�!&68B��!���)!����!��� 8 &(��-�!�!���2%�ก�!
Boiler water Quality Recommendation At Increasing Pressure ( All value,except ; given in ppm ) in Sugar Industry
Intermediate
Low to 250 psi 250 -300 psi 300 - 450 psi
0 - 15 kg/cm2 15 - 20 kg/cm2 2 0 - 30 kg/cm2
Total hardness, as Ca CO3 0 0 0
Total Alkalinty, as Ca CO3 700 700 700
Hydroxide, as Ca CO3 150 - 300 150 - 300 130
Silica, as SiO2 100 - 133 50 - 67 50 - 67
Dissolved Oxygen 0.015 0.015 0.015
Total Dissolved Solid < 2,500 < 2,000 < 1,500
Nil
2.5
100
IJT 60kg/cm2
Total Dissolved Solid < 2,500 < 2,000 < 1,500
Suspended Solid < 600 < 300 < 200
Conductivity, micro - mho / cm < 3,500 < 2,850 < 2,150
PH 11 - 11.8 11 - 11.5 10.5 - 11.5
Oil 1.0 1.0 1.0
Sodium Sulphite ; as Na2 SO3 30 - 60 30 - 40 20 - 30
Phosphate ; as PO43- 20 - 40 20 - 40 5. - 15
Hydrazine ; as N2 H4 0.1 - 0.3 0.1 - 0.4 0.1 - 0.5
,�ก�!�� ก��*���$�-����!&(����!
*C 2531 � �" 5 �� "ก��*����B��!���
���!�ก�!����!��%��2�
100
200
9.5-10.5
20
RAW WATER
FILTERING
FILTERED WATER
SOFTENING RODEMINERALIZATION
THERMALDEAERATION
MAKE - UP WATER
CONDENSATEPOLISHING
ADDITTIVEINJECTION
THERMALDEAERATION
FEED WATER
BOILERWATER STEAM
CONDENSATE
BLOW - DOWN
160°C
IJT
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Water Flow Path
%!���ก4,� overheat ����2ก)! �"�6-
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superheat ,�$���!�$��ก �� "!��� �"��$7%)! % superheat ��-�* 68�B7��,����"��5�! �! ��-$,��7� %�ก��68�B7��� superheater steam ,52�*����2��� firing &(�&6���%)�� furnace gas temp. �ก�! 537°c c c c ก%! �"ก���!,����"���� load ����� steam
flow '%�! % superheater ��ก� �� ")�� superheater metal temperature 2"��ก(%�&%��7�6- �"���� !�-� (*����8 600°c ) ก(%�&%��7�6- �"���� !�-� (*����8 600°c ) ��� firing rate �� �2��ก��*�!�� �������4(�* ,� ��)�� superheater metal
temperature �7�ก�!&%� �"���� !�-� �����&(����! �"���"��5�! ��4(ก(%�&%�&(����! �" steam ������������(� �� %����&�$&(����!)�� steam ��% �!!�"!�
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Natural circulation ����(�$!2��?�����2�
Forced circulation ����(�$!2��?�����2� �-$�� circulating pump �%($ก������(�$!
Once through ���'%�!�(-�-�$(
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,�2�&(�&6� acidity �!��� �")��-�($ ( &%�&(���*+!ก�-) acidity ���(�--�($ pH
&%� pH = 7 ���$�5 !�����&%��*+!ก����� pH 2"��ก(%� 7 !�����O ?�P�*+!ก�-��� pH �7ก(%� 7 !�����O ?�P�*+!-%�
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Acid Attcak ��� pH 2"��ก(%� 7 !�����O ?�P�*+!ก�- ,�������ก�-�! ����4กก,�ก'!� %�-�
Caustic Attack ��� pH �7ก(%� 7 ��ก0 !�����O ?�P�*+!-%� ,� ��)�����4กก�%!�-���%!�-�$(ก�! ,� ��)�����4กก�%!�-���%!�-�$(ก�!
ก��*�ก�! corrosion ���,�2�&6� &%� pH ���ก��,�-�ก�� �"�, *!)!!���
scale �"�ก��B�$)! %,� ���!�� �"&���$Q!(!
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Scale �ก�-,�ก���$7%)!!���,�*��ก�-�($ �����(!�$ (suspended solids) �������$ (dissolved solids)
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