Coal Fired Steam Boiler DZL/DZH coal steam boiler and wood pellet boiler
Brief Introduction
The DZH/DZL Coal Fired Steam Boiler produced by the company is a single-cylinder vertical-type
water-fired tube-shell boiler, and the combustion equipment is a
chain grate.
The water-cooling wall on the left and right sides of the furnace
is a radiant heating surface, the two wings of the furnace are
convective heating surfaces, the convection heating surface of the
threaded tobacco pipe is arranged in the drum, and the front and
rear arches are made of a heat-resistant concrete integrally cast
enamel.
The outside of the boiler main body is three-dimensional shield
housing. Yongxing Boiler Manufacturing Co., Ltd. produces a variety
of industrial boilers, such as biomass boilers, fuel gas boilers,
coal-fired boilers, electric steam boilers, thermal oil furnaces,
hot air boilers, organic heat carrier boilers, steam generators,
etc.
The products are sold to more than 30 provinces, cities and regions
in the country and exported to Malaysia, Myanmar, Vietnam, the
Philippines, Ecuador, Indonesia, Russia and other countries.
Coal Fired Steam Boiler Structural features
1. The boiler furnace is designed as a full water cooled combustion
chamber. The left and right membrane walls extend all the way to
the upper surface of the grate, and the water-cooled furnace is
formed with the water-cooled arches before and after, which
increases the radiation heating surface of the furnace and improves
the working efficiency of the boiler.
2. The pipe at the bottom of the drum and the headers on both sides
constitute the rear arch pipe, which successfully solved the
reduction of the height of the boiler and improved the space
utilization inside the boiler.
3. The whole boiler adopts low thermal inertia design. The overall
efficiency of the boiler is more compact, and the heat radiation
area of the furnace is increased by more than 50%. At the same
time, the use of the light furnace wall reduces the thermal inertia
of the boiler by 70%, improves the combustion efficiency, and makes
the boiler load adjustment more flexible.
4. The front and rear arches of the boiler adopt the "warm arch"
structure. The arching of the arches not only increases the
structural strength, but also stabilizes the temperature of the
steam in the furnace arch.
5. The boiler adopts the independent air chamber structure with
double-side air inlet, which can flexibly adjust the air volume and
the wind pressure of each air chamber to effectively ensure the
combustion effect of the fuel.
6. The boiler adopts push-pull gate ash cleaning device. The ram
material is heat-resistant cast iron, which effectively prevents
secondary combustion deformation and grate leakage.
Coal Fired Steam Boiler Control system configuration instructions
Taking into account the different needs of users, the boiler's
electrical control system provides both basic and standard options
for users to choose when it is safe and convenient.
1. Basic.
The basic power control system includes start-up, notification, and
interlock control of all auxiliary motors, and manual control mode
is configured. Users can switch control modes according to their
needs. Key parameters such as drum pressure, boiler water level and
exhaust temperature can be displayed on the human-computer
interaction interface, which is convenient for users to monitor the
operation of the boiler at any time. The adjustment system includes
functions such as boiler water inlet and return adjustment, remote
control of the draft fan damper, and step-less adjustment of the
grate motor.
In addition, according to the relevant technical requirements in
the "Steam Boiler Safety Technical Supervision Regulations", the
automatic alarm function is also set in the control system,
including ultra-low water level alarm protection and steam
over-pressure alarm protection.
2. Standard type.
In addition to the above basic functions, the standard type control
system also carries out related configuration according to the
detection and monitoring requirements in JB/T10094-2002 "General
Technical Conditions for Industrial Boilers", making the detection
and monitoring functions more comprehensive.
Normally the factory configuration is a basic control system.
Standard configuration or other special requirements configuration
requires user customization.
Data sheet 1
| The Parts of DZL Coal Fired Steam Boiler |
| NO. | Name | Model& | Origin |
| Specification |
| 1 | Boiler Body | DZL1-----DZL8 | YONGXING/DALIAN GRATE |
| 2 | Valves and | Matching | ZHENGZHOU |
| Instruments |
| 3 | Grate Governor | J50B / 0.5KW | JIANGSU |
| 4 | Forced Draft Fan | Type 4-72-12NO.4.5A left 0° | ZHOUKOU |
| 5 | Induced Draft Fan | Type Y5-41-7.1C right 135° | ZHOUKOU |
| 6 | Feed Water Pump NORMAL | Type 1(1/2)GC5×9 | ZHEJIANG |
| 9 | Steam Cylinder | φx L( mm) 159 | YONGXING |
| 10 | Electrical Cabinet | CKC-II | NANJING |
| 11 | Wet type Dust collecter | 1T matching | ZHOUKOU |
| 12 | Water Treatments | 1T matching | US FLECK |
| 13 | Water Alarm | | Zhoukou |
| 14 | Slag Remover | GBC-1 / 0.5KW | YONGXING |
| 15 | Coal Conveyor | FSG-100kg | YONGXING |
Data sheet 2
| Data | DZL1-T | DZL2-T | DZL3-T | DZL4-T | DZL6-T |
| Rated evaporation capacity t/h | 1 | 2 | 3 | 4 | 6 |
| Rated working pressure MPa | 0.7/1.0/1.25 | 0.7/1.0/1.25 | 1.0/1.25 | 1.25/1.6 | 1.25/1.6 |
| Rated steam temperature ℃ | 170/184/194 | 170/184/194 | 184/194 | 194/204 | 194/204 |
| Water-supply temperature ℃ | 20 | 20 | 20 | 20 | 20 |
| Body Heated area m2 | 6 | 54 | 83.5 | 115 | 186 |
| Economizer Heated area m2 | 10.56 | 27.6 | 41.2 | 53 | 87.2 |
| Chain Grate area m2 | 2.3 | 2.3 | 4.1 | 4.1 | 5.85 |
| Exhaust temperature (℃) | 120 | 120 | 120 | 125 | 125 |
| Maximum shipping weight ton | 19 | 25 | 28 | 32 | 43 |
Dimension(L*W*H)
mm | 4500×2000×3200 | 5900×2200×3400 | 6200×2200×3450 | 6700×2400×3450 | 7700×2600×3600 |
Data sheet 3
| Parameters Table for DZH 0.5-6 ton |
| Item No. | DZH0.5-0.7 | DZH1-1.0 | DZH1-1.25 | DZH2-1.0 | DZH2-1.25 | DZH4-1.25 | DZH4-1.6 | DZH6-1.25 |
| Rated steam output(t/h) | 0.5 | 1 | 1 | 2 | 2 | 4 | 4 | 6 |
| Rated work pressure(Mpa) | 0.7 | 1 | 1.25 | 1 | 1.25 | 1.25 | 1.6 | 1.25 |
| Rated steam temperature(°C) | 165.3 | 184 | 194 | 184 | 194 | 194 | 204 | 194 |
| Rated feed water temperature(°C) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Thermal efficiency(%) | 76.6 | 77.18 | 77.6 | 76.8 | 77.7 | 78.8 | 78.8 | 78.5 |
| Fuel consumption (kg/h) | 79 | 172 | 178 | 358 | 361 | 726 | 732 | 1080 |
| Shipping size(m) | 3.67*
1.76*
2.78 | 4.31*
1.9*
2.86 | 4.31
*1.9*
2.85 | 5.41
*2.6*
3.1 | 5.41
*2.6*
3.26 | 5.86
*2.8*
3.39 | 5.86
*2.8*
3.4 | 6.2*
2.96*
3.58 |
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