Industrial Energy Saving Wood Pellet Coal Fired Steam Boiler For
Rice Mill Plant
DZH biomass horizontal steam boiler, is a horizontal three - return
water - fire tube hybrid boiler, in the boiler barrel arranged with
a bunch of threaded smoke pipe.The left and right sides of the
furnace chamber are equipped with water cooling walls of light
pipes.It adopts light movable grate, manual feeding, equipped with
blower and induced draft fan for mechanical ventilation.The front
and rear arches of the furnace adopt new energy saving
technology.After the fuel falls on the grate, enters the furnace
and burns, the flame, through the rear arch refraction, turns
upward through the burning Chambers on both sides of the body,
turns back to the front smoke box, and then returns to the tube
bundle in the pot through the front smoke box, enters the
economizer through the rear smoke box, and then is pumped by the
induced draft fan to the air through the flue to the chimney.
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.
Performance advantage
1. The steam boiler is the horizontal quick-loading boiler with
natural circulation of working medium.
The boiler heat exchange system is composed of a boiler barrel, a
set box and a water cooling wall. The main heating surface is
composed of a furnace water cooling wall, part of the boiler barrel
and a convection tube bundle inside the boiler barrel.
2. Advanced design performance:
The main heating surface tube of the boiler is made of seamless
steel tube of no. 20 low and medium pressure boiler, and the boiler
barrel is made of special steel plate for the boiler.The left and
right containers are made of seamless steel tubes.
3. The boiler arch is made of fire-resistant concrete.The rear arch
is low and long, so it burns well. The wings of the flue and the
side wall tiles are made of refractory sintered bricks.Boiler front
wall and back wall adopt universal firebrick.
4. Reasonable exhaust ventilation, large combustion chamber and
strong applicability of coal.Suitable for all kinds of bituminous
coal or anthracite, mixed coal.Well burned.Because the
high-temperature flue gas first enters the settlement chamber, and
then from both sides enters the two wings of the flue and the front
smoke box, so the effect of smoke removal and dust removal is good.
5. Simple water circulation, reasonable structure of pressurized
parts, and safe operation under the condition of ensuring water
quality.
6. The combustion equipment is a fast-loading grate, which can be
manufactured and installed in the factory and directly installed on
the foundation after being transported to the site.With reasonable
structure, compact, low steel consumption, so that the boiler
performance, weight, structure and size compared with domestic
products with the same capacity has obvious advanced.
7. Energy saving and environmental protection
biomass steam boiler adopt the latest gasification combustion
technology, set up the advanced gasification rotary combustor,
built-in cyclone secondary air distribution, make fuel combustion
more full.
8, and the use of efficient heat transfer elements - threaded smoke
pipe, with a reasonable flow of flue gas, so that the boiler
thermal efficiency is higher.The thermal efficiency is over 85%.
9. The steam boiler adopts the green renewable biomass lignin
pellet fuel promoted by the state, with zero CO2 emission, smoke
emission concentration less than 50mg/m3, smoke blackness less than
Ringerman I class, and all indicators meet the national
environmental protection standards of the first class.
10. Low operating cost: The fuel lignin biomass pellet used by the
boiler is a new type of environmental protection fuel supported and
promoted by the state. It is a renewable resource.It has the
characteristics of high calorific value, low cost and wide
source.Its operating costs are only a quarter of those of electric
boilers and less than half of those of oil-fired (gas-fired) steam
boilers.
11, high degree of automation: digital integrated controller,
according to the user can set the automatic controller burning
conditions, simple and convenient operation, automatic ignition,
automatic feeding, automatic ash cleaning, gas boiler operation is
equally convenient.
Technical Parameter
Model
Item | DZH0.5-0.7-AII
DZH0.5-1.0-AII | DZH1-0.7-AII
DZH1-1.0-AII
DZH1-1.25-AII | DZH2-0.7-AII
DZH2-1.0-AII
DZH2-1.25-AII
DZH2-1.6-AII | DZH4-1.25-AII
DZH4-1.6-AII |
Rated evaporation
capacity (t/h) | 0.5 | 1 | 2 | 4 |
Working
pressure(Mpa) | 0.7/1.0 | 0.7/1.0/1.25 | 0.7/1.0/1.25/1.6 | 1.25/1.6 |
Rated steam
temperature(℃) | 170/184 | 170/184/194 | 170/184/194/204 | 194/204 |
Feed water
temperature(℃) | 20 | 20 | 20 | 20 |
Effective area of
grate(m2) | 1.28 | 2.1 | 3.36 | 5.2 |
Fuel consumption
(Kg/h) | 76 | 150 | 301 | 602 |
Exhaust flue gas
temperature(C) | 165 | 165 | 165 | 165 |
Thermal Efficiency
(%) | 80 | 80 | 80 | 80 |
| Size(m) | 3.2x 2.0x 2.6 | 4.1x 2.2x 2.9 | 4.7x 2.3x 3.2 | 5.6x 2.5x 3.5 |
| Weight (t) | 8 | 12 | 15 | 22 |
Boiler Production
Application
Coal fired steam boiler is widely used in hospitals, schools,
textile mills, garment factories, large supermarket, garment
factories, dyeing factory, hotel, dining room, restaurant, food
factory, beverage factory, soy products, meat products factory,
cannery, brewery, pharmaceutical factory, packaging plant, building
materials factory, paint factory, swimming pool and other places of
the enterprises and institutions.
Biomass Fuel Materials
1. Rice husk 2. Straw
3. Wood Chips 4. Peanut Shells
5. Coconut Shells 6. Palm Shells
7. Bagasse 8. Biomass Pellet
