When referring to biomass hot-blast stove, we have to say that combustion efficiency of hot-blast stove is an important way to improve combustion of hot-blast stove. Only high combustion efficiency hot-blast stove can improve the working efficiency of hot-blast stove and reduce losses. So how to quickly improve the combustion efficiency of biomass hot-blast stove? Overall advantages: high thermal efficiency and low energy consumption, not only the design of the main body, base and hearth of the hot stove, but also the design and layout of secondary air supply and the comparison of elements of the hot stove grate.
??1、充足的氧气：如果过量空气系数过小，即空气量供应不足，会使燃烧效率降低;如果过量空气系数过大，则会降低炉膛温度，增加不完全燃烧热损失。最佳的过量空气系数使q2 q3 q4之和为最小值。
Adequate oxygen: If the excess air coefficient is too small, that is, insufficient air supply, the combustion efficiency will be reduced; if the excess air coefficient is too large, the furnace temperature will be reduced and the incomplete combustion heat loss will be increased. The optimum excess air coefficient minimizes the sum of Q2 Q3 q4.
_2. Scale prevention and descaling technology: By using biomass heating hot stove descaling agent and electronic scale preventer, the water vapor circulation system is optimized, and the fouling rate of hot stove is reasonably controlled, so as to reduce scale and improve the thermal efficiency of hot stove.
_3. Maintain the reasonable flame front position of biomass heating hot-blast stove fuel. The flame front should be located between the high-end grate and the central grate, and the flame filling degree on the grate is good.
Advantages of Dacheng Biomass Hot Stove in Hengyang
1. High degree of automation of hot blast stoves:
The operation and control of hot blast stove are controlled by PLC. Feeding, slag discharging, furnace temperature, grate speed regulation, frequency conversion and automatic control are used for induction and blast. A set of manual control device is set up in the system for debugging, maintenance and computer malfunction, and a set of conventional relay connection is set up for water pump. Touch control device ensures reliable automatic water supply for hot blast stove under any circumstances.
2. The thermal efficiency of hot blast stove is high:
Hot blast stove design pays attention to high thermal efficiency and low energy consumption. The design thermal efficiency of hot blast stoves is more than 84%, which is verified by the actual cases of our products. Our company guarantees that the calorific value of particles is more than 4000 grains, and the steam output of grains is more than 5 tons per ton.
3. Full-sealed idle feeding system of hot blast stove:
The feeding system of biomass hot-blast stove breaks the conventional feeding mode of other hot-blast stoves. The feeding system of biomass hot-blast stove in our company adopts spiral feeding mechanism, i.e. closed and idle feeding. The whole feeding system consists of silo, feeding screw, motor and cloth bag.
The advantages of the feeding system are that the automatic screw feeding mechanism is used in the feeding process, and biomass particles and biomass compacts are pushed into the hot blast stove through the screw feeder. It breaks the traditional feeding mode of "feeding material into coal hopper with coal feeder" of other biomass manufacturers. The screw feeder is convenient, safe and has a long service life. Moreover, various types of biomass fuel feeding mechanism are suitable for feeding of different furnace types. The screw feeder eliminates the problem of traditional coal hopper feeding and tempering.
Fourth, the design and layout advantages of secondary air supply for hot blast stoves:
As we all know, the biggest difference between biomass hot-blast stove and coal-fired hot-blast stove and firewood stove is the increase of secondary air supply. However, how to arrange the wind direction of secondary air duct? It is the most important part of biomass hot blast stove. If the layout is good, the secondary air direction advantage will improve the combustion supporting effect of the furnace. A better secondary air distribution is also the help of low energy consumption of hot blast stove fuel. On the contrary, just adding a few secondary air ducts in the furnace may be the killer of burning the grate, the wall and the steel frame of the base.
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