Henan Jinzhen Boiler Company
Jinzhen Boiler, steam boiler experts!
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Model:DZLType Chain Grate Stoker Steam Boiler
Structure:WaterTube Fire Tube Three Pass
Rated Steam Capacity:1-20 ton/hr
Rated Steam Pressure:0.7/1.0/1.25/1.6/2.5 Mpa
Rated Steam Temperature:170/184/194/204/225 C
Application:Textile Mill,Food and Beverage,Chemical,Medicine,Light Industry,Rubber,Printing and Dyeing Plant,Paper Mill,Wood Processing,Garment and Laundry etc.
Introduction
DZL seires coal/biomass fired steam boiler realizes almost zero pollution with the use of special dust collector solution (bag dust collector, double towers desulfurization, etc.), it is honored as Chinese famous brand. This series boiler is single drum horizontal type shell boiler, the combustion equipment is chain grate (small scale flaker is available), has the advantages of feed mechanically and strong adaptability of different fuels. The fuel could be II class bituminous coal, the diameter should be 6-25mm, and ash content should be less than 32.4%. Otherwise, DZL series boiler could also burn biomass fuel, including wood, straw, bagasse, rice husk, coconut shell, cotton seeds, peanut shell, etc.
Technical Parameters
| Model | Rated evaporation capacity (t/h) | Working pressure (Mpa) | Rated steam temperature (°C) | Feed water temperature (°C) | Boiler body heating area (m2) | water pressure testing pressure (M pa ) | Effective area of grate (m2) | Thermal efficiency (%) |
| DZL0.5-0.7-T | 0.5 | 0.7 | 170.4 | 20 | 17.5 | 1.05 | 1.1 | 82 |
| DZL1.0-0.7-T | 1 | 0.7 | 170.4 | 20 | 28.6 | 1.05 | 2.14 | 82 |
| DZL1-1.0-T | 1 | 1 | 184 | 20 | 28.6 | 1.4 | 2.14 | 82 |
| DZL1-1.25-T | 1 | 1.25 | 193.3 | 20 | 28.6 | 1.65 | 2.14 | 82 |
| DZL2-0.7-T | 2 | 0.7 | 170.4 | 20 | 55.1 | 1.05 | 2.64 | 82 |
| DZL2-1.0-T | 2 | 1 | 184 | 20 | 55.1 | 1.4 | 3.41 | 82 |
| DZL2-1.25-T | 2 | 1.25 | 193.3 | 20 | 55.1 | 1.65 | 3.41 | 82 |
| DZL4-1.25-T | 4 | 1.25 | 193.3 | 20 | 91.5 | 1.65 | 6.12 | 82 |
| DZL4-1.6-T | 4 | 1.6 | 204.3 | 20 | 91.5 | 2 | 6.12 | 82 |
| DZL4-2.5-T | 4 | 2.5 | 226 | 20 | 91.5 | 3.125 | 6.12 | 82 |
| DZL6-1.25-T | 6 | 1.25 | 193.3 | 20 | 146 | 1.65 | 6.73 | 82 |
| DZL6-1.6-T | 6 | 1.6 | 204.3 | 20 | 146 | 2 | 6.73 | 82 |
| DZL10-1.25-T | 10 | 1.25 | 193.3 | 104 | 288.2 | 1.65 | 12.4 | 82 |
| DZL15-1.25-T | 15 | 1.25 | 193.3 | 104 | 432.3 | 1.65 | 16.2 | 82 |
| DZL20-1.25-T | 20 | 1.25 | 193.3 | 104 | 576.4 | 1.65 | 24 | 82 |
Performance characteristics
1. The overall layout is compact, covers a small area. Only single storey layout is needed for the boiler room, low cost on infrastructure construction, convenient for transportation, and short installation period.
2. Using spirally corrugated tubes, strengthen the disturbance of flue gas, high heat transfer efficiency.
3. Reasonable design, safe and reliable operation, flat fire bed, and high thermal efficiency.
4. Complete auxiliaries, mechanized coaling and slag tapping, convenient operation.
5. Use chain grate, low coal leakage, good ventilation, wide adaptability of different coals.
6. The boiler shell use aluminium silicate board for heat preservation, low heat loss.
7. Equipped PLC full automatic intelligent control system, operate automatically.
8. Full automatic interlock protection program, has the protection function of water shortage, over pressure, over temperature, gas leakage, flame out, and electric leakage, etc.
9. By equipping with economizer, make full use of flue gas heat, increase the thermal efficiency
Advantage
1 The boiler barrel is consisted of arched tube plate and thread smoke tube, it makes the boiler Quasi steel body into quasi-elastic body structure. It cancel brace part of the tube plate, reduce the stress .Tube plate's smoke tube change from double return into single return. It solves problem of the tube plate crack
2 It takes the thread smoke tube to enhance heat transfer, improve the heat transfer coefficient and thermal efficiency. Due to disturbance of smoke in the tube, the smoke pipe is not easy to accumulate dust ,it can clean by itself .
3 The bottom of the boiler barrel layout with bank of tubes. It will avoid the dead water region in the bottom of the boiler barrel, then sludge is hard to deposit. Boiler barrel can get good cooling, it avoid the bottom of the pot shell burnt or bulge effectively.
4 Stable operation, convenient adjustment, supply strong power.
5 The boiler can remove the dust automatically, to ensure the smoke dust to reach the ruled norm of the environment protection
FAQ
1.What are the spare parts for DZL/SZL series coal/biomass fired boiler?
Generally, the spare parts are instrumentation valve, grate plate, gasket, etc.
2.What are the differences between vertical type boiler and horizontal type boiler with the same capacity?
1.Structure of vertical boiler is compact, occupy a limited area,
2.Convenient on installation and removal.
3.Low cost and investment on capital construction. Steam exhausted fast and sufficient.
1.The combustion space of horizontal is big, fuel can be burned completed.
2.The thermal efficiency is higher than the vertical boiler,
3.Horizontal type: less thermal loss, stronger output, and higher steam quality.
3.What are the limitation (size, humidity, chemical element concentrations) of coal fuel/solid fuel/wood fuel?
Size requirement of coal:6-25mm
Size requirement of blending coal: <50mm (the coal less than 6mm should less than 30%)
Diameter of biomass particle: 6~10mm, length: 25~50mm, water content < 15%, ash content < 2%, sulphur content<0.07%, chlorinity <0.07%, nitrogen content < 0.5%
4.What is the size of furnace door and blower hopper?
Size of furnace door:
Standard elliptical furnace door:300*800*1500
Blower hopper size:
2 tons conical hopper: 1400*800*1500
4 tons conical hopper: 2200*1400*1500