C＆C ENGINEERING, INC

CONSULTANT & CONSTRUCTION 

欽總工程股份有限公司

台北市110信義區永吉路179號12樓之1    TEL: 886-2-8787-8763 FAX:886-2-8787-8651

www.cceng.com.tw

1.       MAJOR FACTORS OF PLANNING：

1. Incineration Capacity：

1)       Nameplate Capacity：

The plant shall have an incineration capacity over 20 t/8 hours, when the

quality of refuse is within the specified range.

2)       Physical Properties of Refuse：

(1)    Type of Refuse：

Mixture of general refuse/kitchen refuse and combustible large sized

refuse.

(2)    Refuse Composition：

As in the following page.

(3)    Elementary Contents in Combustible Refuse：

2.       Number of Furnace：

10 t/8 hours×2 Furnaces

3.       Type of Furnace：

Batches incineration by Fluidized bed type incenerator

4.       Combustion Gas Cooling System：

By water spraying.

5.       Furnace Operating Hours：

8 hours per day.

6.       Furnace Operating System：

This combustor shall be operated in the one-furnace-one-train mode.

  Refuse Receiving and Charging Facility：

      Pit and Crane System (Manual)

  Combustion Facility：

      Fluidized-bed Furnace

  Flue Gas Treatment Facility：

      Filter-type Dust Collector

  Water Supply Facility：

      City Water

  Waste Water Treatment Facility：

    High-temperature Oxidation Treatment System (for waste water from the

    refuse pit) 

  Fan Facility：

    Forced Draft Fan (FDF) and Induced Draft Fan (IDF)

  Ash Discharge Facility：

    By Bunker

7.       Combustion Conditions：

1) Furnace Temperature：

  Combustion Chamber Outlet Temperature：850∼950℃

8.       Pollution Control Standard：

9.       1) Standard Composition of Flue Gas (0℃, 10％O₂, 1 atm, dry base)：

                            Dust                                                           30 mg/Nm³    max.

                            Opacity                                                      10％           max.

                            HCl                                                            40ppm             max.

                            SO_X (as SO₂)                                             100ppm           max.

                            NO_X(as NO₂)                                             150ppm           max.

                            CO                                                             100ppm           max.

                            Pb                                                              1.0mg/Nm³      max.

                            Cd                                                              0.2 mg/Nm³     max.

                            Hg                                                              0.2 mg/Nm³     max.

                            Ignition Loss of Ash                                   5％                  max.

2)       Noise Level：

The noise level shall be as below at the site boundary, when all furnaces are in operation at the rated load：

3)       Vibration：

4)       The vibration level shall be as below at the site boundary, when all furnaces are in operation at the rated load：

    6.  Fluidized Bed：

        Media Used：Type                                                Oribin sand No.4

                    Average Particle Size                      0.6mm

                    True Specific Gravity                       3.2

                    Nominal Specific Gravity                 1.5

                    Fluidizing Start Velocity                   0.2 m/s (20℃)

        Thickness                                                                0.8 m

        Space Velocity                                                        0.3 Nm/s

        Furnace Bed Load                                                  450 Kg/m²h

        Fluidizing Air Rate                                                   3,140 Nm³/h

                                                           (In case of design load refuse)

        Air Temperature                                                      28 ℃

7.       Combustion Chamber：

Excess Air Rate                                                              1.8

Combustion Chamber Heat Load                                    81,800 Kcal/m³h

                                      (In case of design load refuse)

        Furnace Temperature Control System

8.       Furnace Temperature：

Fluidized Bed                                                                  650 ~ 700℃

Combustion Chamber                                                     850 ~ 950℃

9.       Ignition Loss of Residues：

Ignition Loss Below 5％

10.   Design Basis for Prevention of Plooution：

1)       Flue Gas Standard Value (0℃, 10％O₂, 1 atm, dry base)：

                            Dust                                                           30 mg/Nm³    max.

                            Opacity                                                      10％           max.

                            HCl                                                            40ppm             max.

                            SO_X (as SO₂)                                             100ppm           max.

                            NO_X(as NO₂)                                             150ppm           max.

                            CO                                                             100ppm           max.

                            Pb                                                              1.0mg/Nm³      max.

                            Cd                                                              0.2 mg/Nm³     max.

                            Hg                                                              0.2 mg/Nm³     max.

2)       Design Basis for Noise：

The noise level shall be as below at the site boundary, when all furnaces are in operation at the rated load：

3)       Design Basis for Vibration：

The vibration level shall be as below at the site boundary, when all furnaces

are in operation at the rated load：

Fluidized Air Blower Design Calculations

1.   Fluidized air volume required:

= (fluidized bed area) ´ (design air velocity = 0.275 m/s @ 0.3 m/s) ´ 3,600

= (2.907 m2) ´ (0.3 m/s) ´ 3,600 sec/hr = 3,140 Nm³/hr

2.   Air volume design safety allowance factor = 1.2

      Required air volume:

      = 3,140 Nm³/hr ´ 1.2 ¸ 60 = 62.8 Nm³/min

      = 62.8 Nm³/hr ´ (273 + 28) ¸ 273 = 69.2 m³/min (at 28 °C)

3.   Design duct air velocity = 12 m/sec

      Required duct diameter:

      = 69.2 m³/min ¸ (60 ´ 12) = 0.096 m²

      = (0.096 ´ 4 ¸ p)^0.5 = 0.35 m @ 400 mm

4.   Design pressure drops:

      = estimated nozzle pressure drops + estimated duct work pressure drops

      = 1,556 + 30 = 1,586 mmAq

5.   Pressure drops design safety allowance factor = 1.35

      Required pressure drops = 1,586 ´ 1.35 = 2,141 mmAq @ 2,200 mmAq

6.   Design blower efficiency = 70%

      Required blower power:

      = 69.2 m³/min ´ 2,200 mmAq ¸ (6,120 ´ 0.7) = 35.5 kw @ 40 kw

向上 | FBI Reference | Planning factor

Update： 18th Aug. 2006

Contact us       cceng.inc@msa.hinet.net

C＆C ENGINEERING, INC        12-1, No.179, Yong Ji Rd., Taipei, Taiwan, R.O.C.

　

 

T E L  :   886-2-8787-8763          F A X  :  886-2-8787-8651