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CARBOTECHNIK
HHOOTT GGAASS GGEENNEERRAATTOORR CCOOMMBBUUSSTTIIOONN CCHHAAMMBBEERRSS
SSyysstteemm DDrr.. SScchhooppppee ffoorr
PPUULLVVEERRIIZZEEDD LLIIGGNNIITTEE ffuueell ooiill aanndd ggaass
ffrroomm 110000 kkWW uupp ttoo 330000 MMWW
Hot gas generator 40 MW for pulverized lignite, fuel oil and sewer gas during erection in
a sugar factory. On the left side standing the hot gas generator and on the right hand side the rotary dryer.
Complete firing plants with silo, dosing machine, assembly and the
commissioning
Reliable customer service. Service and assembly from one hand
CARBOTECHNIK ENERGIESYSTEME GMBH
Lauterbachstr. 12, 82538 Geretsried-Gelting
Telefon 08171/92 82 - 0 Telefax 08171/92 82 - 79
CARBOTECHNIK
TThhee iinndduussttrriiaall ffiirriinngg wwiitthh tthhee lloowweesstt ooppeerraattiinngg ccoossttss
Hot gas generator 8,5 MW pulverized lignite on a rotary sand dryer.
We build gas generators and industrial combustion chambers on the basis of 30 years research and development. The oldest burners are since 1984, in operation, at the customers satisfaction, without repair. The basis is the dicovery of a flow effect, who allows to build even the biggest hot gas generator whitout refractory lining. They are long-lived and complete insensitive against fast temperature changes. From the cold state to full load they require 1 – 2 minutes. No starting shuttor or chimney. The hole plant is very simple. On this base we are building hot gas generators in 2 standard series as well as combustion chambers in special design for pulverized lignite, fuel oil and gas. 1. hot gas generator „open series“ up to 15 MW, 850 °C, whitout flue gas recirculation, whithout refractory 2. hot gas generator with mixing chamber up to 45 MW, 850 °C, with flue gas recirculation, whitout refractory 3. combustion chambers in special design up to 300 MW, 1400 °C, back pressure up to 6 bar Please ask for our list of references „Hot gas generators”.
CARBOTECHNIK
1. Hot gas generator „Open Series”
Hot gas generator 14 MW pulverized lignite in an asphalt plant
Functioning
The main part is a conical combustion chamber of chromium steel. The flame is separated
from the chamber wall by a very stable cold air layer. The flame length depends on the fuel-
air-ratio:
CARBOTECHNIK
HHoott ggaass ggeenneerraattoorr „„OOppeenn SSeerriieess““
capacity, dimensions
Max. capacity (at p = 500 mm WG)
Typ HO 5 HO 7 HO 8,5 HO 12 HO 16 HO 22
hot gas flow
air flow
fuel flow
at 850 °C
8.256
8.035
2,88
12.336
11.962
4,28
16.464
15.956
5,72
21.128
20.541
7,36
30.270
29.350
10,51
43.240
41.930
15,02
m³n/h
m³n/h
MW
Dimensions (for all fuels)
lenght L
diameter D
air inlet A x B
DIN 24154
2300
950
450 x 355
2760
1100
560 x 450
2890
1250
630 x 560
3530
1400
710 x 560
4080
1600
900 x 710
4840
1800
1000 x 800
mm
mm
mm²
Modifications reserved.
B
A
CARBOTECHNIK
HHoott ggaass ggeenneerraattoorr „„OOppeenn SSeerriieess““
Model selection
Reading example for 15000 m³n/h can be used:
a) Type HO 16 at 120 mm WG
b) or Typ HO 12 at 230 mm WG
c) or Typ HO 8,5 at 410 mm WG
Selection depending on the repuired turn-down of the hot gas flow.
Fuels - pulverized coal, lignite or biomass
- light fuel oil
- gas (natural, propane)
Hot gas temperature At every hot gas flow a temperature between 300 °C and
850 °C can be obtained by controlling the fuel flow.
Higher temperatures on request.
The hot gas generator has no upper capacity limit, but the repuired air pressure increases with
the square of the air flow at a given generator size. So the generator size has to be selected
according to the available air pressure. Usually we recommend air pressure not exneeding 500
mm WG.
hot gas flow m³n/h
required air-pressure
type
CARBOTECHNIK
2. Hot gas generator with mixing chamber
- operation with flue gas recirculation.
- stoichiometric firing, thus saving up to 10 % of the fuel costs. No refractory. About 2
minutes from start to full capacity.
Hot gas generator 21 MW pulverized lignite for the raw material drying in a cement plant.
Center: Hot gas generator
Down right: pulverized lignite silo
Hot gas 200 – 800 °C
Capacity 5 – 43 MW
Hot gas flow 48000 – 168000 m³n/h
Fuels (alternative)
- pulverized lignite, coal, wood
- light fuel oil, gas.
CARBOTECHNIK
HHoott ggaass ggeenneerraattoorr wwiitthh mmiixxiinngg cchhaammbbeerr
Flow rates, dimensions
The burner is firing a flame jet of
60 – 100 m/s downwards into the mixing chamber.
Thereby the flame gas become intensely
admixed with the recycled gas.
The burner works without
excess air.
Accordingly the flue gas amount is small.
You saves thereby:
- almost the half of the filter costs,
- as far as 10 % of the fuel
costs.
It is worth while to calculate this hot gas generator
very carefully.
- burner type
- firing rate (max.)
- air flow
- hot gas flow at 700 °C
- burner
diameter d
high h
- mixing chamber
diameter D
high H
- hot gas - exit DA
L 7
12,5
11962
48.210
1200
1800
2800
8,44
1500
L 8,5
16,6
15956
64.340
1300
2080
3100
9,34
1700
L 12
21,4
20541
82.780
1500
2350
3400
10,24
2000
L 16
30,6
29350
118.300
1700
2820
3900
11,75
2300
L 22
43,7
41930
168.000
1900
3360
4400
13,26
2800
----
MW
m³n/h
m³n/h
mm
mm
mm
m
mm
Modifications reserved.
CARBOTECHNIK
HHoott ggaass ggeenneerraattoorr wwiitthh aa mmiixxiinngg cchhaammbbeerr
This is our proven high velocity burner
without refractory.
Fuels
- pulverized lignite
- light fuel oil
- gas (natural, propane)
The capacity rates as shown below are
based on soichiometric combustion
(air-fuel-ratio = 1,0).
For more details ask for our brochure
„Impulse Burner“.
Hot gas generator 15 MW pulverized lignite for heating
a cement mill, under construction.
CARBOTECHNIK
3. Combustion chamber of special design
Two lines are well proven:
- Combustion chamber with counter chamber
- Special designs
3.1 Combustion chamber with counter chamber
- hot gas up to 1400 °C, with refractory
- operation with flue gas recirculation or excess air
- very uniform temperature distribution
- back pressure up to 6 bar
- all liquid and gaseous fuels, including blast furnace gas
Functioning
An impulse burner and a mixing chamber are arranged in counter flow. The burner
blows his flame jet with 60 – 80 m/s into the central back flow of the mixing chamber:
Hot gas generator 250 kW (light fuel oil) for the stand still inertisation of a coal milling plant.
CARBOTECHNIK
zu 3.1 Combustion chamber with counter chamber
Combustion chamber 12 MW (heavy fuel oil, gas) for the heating of a calcining plant,
1400 °C, back pressure 1 bar
Hot gas generator 5,8 MW blast-furnace gas at a coal mill in a steel plant. In the front right side is the
vertical coal mill.
CARBOTECHNIK
HHoott ggaass ggeenneerraattoorr
SSyysstteemm DDrr.. SScchhooppppee
SSppeecciiaall DDeessiiggnn
Some basic research and over 30 years experience allows us to supply custom made
combustion chambers. So far we have build the world wide biggest as well as the smallest hot
gas generator.
Examples:
1. Three-step hot gas generator as a
environment-friendly ground flare in
a german chemical plant.
- capacity 290 MW
- hight: 30 m
- fuel: gaseous production wastes
CARBOTECHNIK
2. Hot gas generator for the cracking
of hydrocarbons.
Dimensions:
- 20 mm
- lenght 40 mm
- 2,4 x speed of sound
- stat. pressure 6 bar (Ü)
- residence time circa 0,4 x 10-5 sec.
CARBOTECHNIK Energiesysteme GmbH
Lauterbachstr. 12
82538 Geretsried-Gelting
Telefon +49 / 8171 / 92 82 - 0
Telefax +49 / 8171 / 92 82 - 79
Homepage: www.carbotechnik.de
E-mail: [email protected]
