High Efficiency Chain Grate Coal Fired Steam Boiler For Mushroom Cultivation

Description

 High Efficiency Chain Grate Coal Fired Steam Boiler For Mushroom Cultivation
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.). 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.
Performance Advantages
 
1. Excellent chain grate
1) The small scale chain grate boiler could resist the temperature as high as 1200℃, long working life.
 
2) The chain grate has a low coal leakage because of the small gap.
 
3) High automatic degree, decrease labor cost.
 
4) Convenient for maintenance, it could be done without boiler shut down.
 
5) Based on customers requirement and fuel characteristics, the grate could be designed as small scale grate, chain belt grate, bar grate, etc.
 
2. High thermal efficiency
 
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.
 
2)The furnace wall was poured entirely by the heat-resistance concrete and high-temperature-resistance refractory brick, and the boiler shell use aluminium silicate board for heat preservation, low heat loss.
 
3) Equipped with economizer, make full use of the heat of flue gas, decrease the exhaust smoke temperature, increase thermal 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
 
1) The steam boiler adopts arched tube plate and spirally corrugated tube, change the quasi-steel body into quasi-elastic body structure, reduce stress, solves the problems of tube plate cracking.
 
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.
This coal steam boiler is widely used in schools, textile mills, clothing factories, printing and dyeing factories, restaurants, food factories, beverage factories, bean products factory, meat products factory, cannery, winery, pharmaceutical factory, packaging factory, building materials factory, coating factory, swimming pool and other enterprises and institutions.