Manual Operation Type Biomass Wood Chips Pellet Coal Fired Steam
Boiler for Wood Processing plant
DZH horizontal steam boiler is a horizontal three-return water-fire
tube hybrid boiler with threaded smoke pipe arranged in the boiler
barrel.The left and right sides of the furnace are equipped with
light tube water-cooling wall.Using light mobile grate, manual
feeding, equipped with blower, induced fan for mechanical
ventilation.The front and rear arch of the furnace adopts a new
energy-saving technology.After the fuel is scattered on the grate
and burned in the furnace, the flame passes through the rear arch
refraction and turns upward to the front smoke box through the
burnout chamber on both sides of the body. Then, the front smoke
box folds back to the inner tube of the boiler, and enters the
economizer through the rear smoke box. Then, it is pumped by the
induced fan and discharged to the atmosphere through the flue to
the chimney.
1. Model:DZH
2. Steam Capacity: 500kg/hr-4ton/hr
3. Design pressure:0.7Mpa(7bar), 1.0Mpa(10bar),
1.25Mpa(13bar),1.6Mpa(16bar)
4. Stem temperature: 184 °c,194°c, 204°c
5. Design fuel: Biomass pellet,wood sawdust, bamboo chip, wood
block, straw
6. Structure: horizontal water-fire tube, single drum
7. Type: DZH manual coal feed type coal fried boiler
8. Application: medicine, chemical, light industry, textile,
building material, cultivation, food and beverage, plastic foam,
printing, dyeing and washing, rubber processing, paper
products,wood processing, hotel, clothing and leather manufacturer
etc
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.
Technical characteristics
11. High Thermal Efficiency
1.1 The spirally corrugated tube strengthen the heat transfer,
improve thermal efficiency. The flue gas has the foundation of
disturbance, avoid ash depositing in tube.
1.2 The furnace wall was poured entirely by the heat-resistance
concrete and high-temperature-resistance refractory brick, and the
boiler shell uses aluminium silicate board for heat preservation,
low heat loss.
1.3 Equip with economizer, make full use of the heat of flue gas,
decrease the exhaust smoke temperature, increase thermal
efficiency.
2. Anti-coking
2.1 For the easy coking biomass fuels, increase the size of
furnace, large space to achieve sufficient combustion.
2.2 Adopt unique double secondary air design, improve the ignition
condition of biomass fuels, sufficient air supply to make sure the
high combustion efficiency.
3. Avoid Bulging
The riser tube bundle under the drum, remove the dead water region
at the bottom of drum, sludge is not easy for depositing, the high
temperature area of drum has better cooling, prevent bulging.
4. Avoid Tube Plate Cracking
4.1 The boiler adopt arched tube plate and spirally corrugated
tube, change the quasi-steel body into quasi-elastic body
structure, reduce stress.
4.2 Arrange two sides gas duct in drum, the smoke gas could enter
into the front smoke chamber smoothly, the temperature of tube
plate is lower than 600℃, avoid cracking leaded by high
temperature.
5. Sufficient Output
Adopt horizontal type three pass structure and large furnace, to
ensure the sufficient combustion, and the boiler could absorb the
thermal expansion effectively. The large diameter boiler drum
increase the radiant heating surface, to ensure the sufficient
output.
6. Environmental Protection
6.1 The biomass fuels do not content sulfur, do not pollute the
environment, and the cost of biomass fuels are low.
6.2 The splayed wall and smoke outlet have the function of dust
removal, decrease the concentration of smoke emission.
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 |
Application
Chemical industry, textile plant, rice mill, garment factory,
livestock, farm, hotel, school, etc.
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
Warranty and after-sale service
Gentle Boiler promises the top quality of every set of machine and
best after-sales service as followings :
(A) The boiler body guarantee is two years, for accessories three
years
(B) During the guarantee period , if the main body defective or
broken without wrong operating , Gentle Boiler must replace the
parts for free or prepare the spare-parts for free.
(C) Gentle Boiler should provide boiler technical service and
operation guidance for whole life
long.
(D) Regarding to the installation and training , the buyer should
take all the correlative charges (accommodation and food , round
-trip tickets)
Q1: How can you get the best price quickly?
(1)We need to know the boiler capacity, the fuel you plan to use
and the steam pressure you need, and then we can confirm the boiler
model.
(2) Customer needs to provide us your name, email address and company
name, and then we will send you price list immediately.And if you
use whatsapp, skype or wechat, you can provide us your ID, it will
be more convenient for our communication.
Q2: Why should you believe our boiler quality?
(1).Strength calculation report with applied materials information;
(2).100%NDT(non-destructive inspection) report of steel plate, tube and
welding rod;
(3).100% X-ray inspection(welding seam): ensure the quality of entire boiler;
(4).Hydrostatic test: ensure the standard working pressure and safety;
(5).Passed SGS certificate.
Q3: What about the installation and Commissioning?
After you receive the boiler, we will guide you to make some
preparation for installation;If necessary, our expert will fly to
your local place in 72 hours. The experts will responsible for
guiding installation and commissioning. But the buyer will be in
charge of fee corresponding.
Q4:What is the using life of your boiler?
A:Normally the boiler is designed for 20 years life span, but with
right operation and good maintenance,the boiler can be used for
20-25 years.
Q5:Whether the boiler can burn dual fuel or multi-fuel?
boiler have oil burner, gas burner, and oil&gas dual fuel
burner, we can offer the specific burner based on customers’
requirement.
