4000 kg/h coal fired industrial steam boilers for carbonated
beverage production line
DZH type steam boiler is a kind of horizontal three return water -
fire tube boiler.Rows of water wall tubes are arranged on the left
and right sides of the furnace, and two groups of tubes are
arranged in the drum to form two return trips. The heating surface
of this type of boiler is sufficient and the economizer of the
heating surface at the end is equipped., and equipped with drum,
induced draft fan to achieve mechanical ventilation.Layered
combustion.The coal has wide adaptability and good smoke
elimination effect.Equipping with high efficiency cyclone dust
collector, the concentration of smoke and dust discharge can meet
the environmental protection requirements of the second class
area.The smoke passes through the upper combustion chamber of the
rear arch, from the combustion chamber upward through the rear shed
tube smoke chamber into the first tube bundle to the front smoke
box, and then from the front smoke box into the second bundle to
the rear smoke box, through the induced draft fan pumping into the
flue, dust collector and chimney, and finally discharged to the
atmosphere.The boiler automation level is high, the boiler feed
water automatic regulation, high and low water level alarm, low
water level interlock protection, lead, fan interlock
protection.Complete supporting auxiliaries.
Boiler Structure
Combustion process:
The fuel enters the furnace and burns on the grate. The flue gas
from the production enters the convection tube bundle on both wings
along the bottom of the boiler barrel through the smoke outlet on
the middle partition wall, enters the threaded smoke pipe through
the front smoke box, passes through the dust collector, and is
pumped and discharged into the atmosphere through the chimney by
the induced draft fan.
Steam Boiler specification sheet
| Boiler model | DZH1-1.0-T | DZH2-1.25-T | DZH4-1.25-T | DZH6-1.25-T |
| Rated capacity | ton/h | 1 | 2 | 4 | 6 |
| Rated pressure | Mpa | 1.0 | 1.25 | 1.25 | 1.25 |
| Rated steam temperature | ℃ | 184 | 194 | 194 | 194 |
| Active grate area | m2 | 2.11 | 3.95 | 5.34 | 9.2 |
| Exhaust gas temperature | ℃ | 127.2 | 126.4 | 137.3 | 146.8 |
| Fuel consumption | kg/h | 176 | 352 | 705 | 1058 |
| Thermal efficiency | % | 83.5 | 83.5 | 83 | 83 |
| Weight | ton | 9 | 15 | 18.5 | 25 |
| Dimension | mm | 4320*1825*2685 | 4950*2650*3177 | 5650*2550*3434 | 6930*3020*3664 |
| Delivery mode | / | Package | Package | Package | Package |
Technical features
(1) The pot barrel is composed of arch tube plate and threaded
smoke pipe, so that the pot barrel is changed from a quasi-rigid
body to a quasi-elastic body structure, and the stretch parts in
the tube-plate area are eliminated to reduce the stress.The smoke
pipe in the tube plate is changed from two return journey to single
return journey, which solves the problem of crack in the tube
plate.
(2) The bottom of the pot is arranged with an ascending pipe row,
which eliminates the stagnant area at the bottom of the pot and
makes the mud residue not easy to deposit. The high temperature
area of the pot can be well cooled to prevent the bottom bulge of
the pot.
(3) High efficiency heat transfer threaded smoke pipe is adopted to
enhance the heat transfer effect and achieve the characteristics of
boiler heating up and rapid pressure boost, thus improving the
thermal efficiency of the boiler.
(4) Compact structure, compared with the same type of boiler, the
shape size is small, save investment in boiler house
infrastructure.
(5) Stable operation, convenient adjustment and sufficient output.
(6) The threaded smoke pipe is used to enhance the heat transfer,
which improves the heat transfer coefficient and thermal
efficiency, because the smoke has a disturbance effect in the
pipe.Smoke tube is not easy to accumulate ash, play the role of
cleaning.
(7) The eight-character wall in the furnace and the smoke window at
the exit have a certain dust-lowering effect.The original dust
emission concentration of the boiler is controlled below the
standard to ensure that the soot emission of the boiler meets the
national environmental protection regulations.
(8) The unique double-layer secondary air design improves the
ignition condition of biomass fuel, adopts the independent air
chamber, achieves the reasonable distribution of wind, forms an
aerodynamic field favorable to combustion in the furnace, and makes
the combustion temperature and combustion efficiency high.
Application for biomass steam boiler
Wood fired steam boiler is suitable for painting room, drying box,
drying tower painting line and other purposes.It is especially
suitable for central heating in urban residential areas, industrial
production, enterprises and institutions, schools, hotels, bath
centers and other places where heating, hot water and steam are
needed.
