25t/H Wood Boiler Electric Generator Wood Pellet Steam Boiler ISO9001 Certification

Fully automatic wood pellet steam boiler autoclave sterilizer with CE/ISO9001 certification for flour milling

1. Introduction

SZL/DZL chain grate biomass boiler produced by Yongxing Boiler Manufacturing Co., Ltd., such as SZL assembled biomass boiler, with evaporation of 2-25t/h, thermal efficiency of 80%--84%, fuel for straw, rice husk, etc. Fuel, or shaped biomass, and biomass blends. The boiler is a double-cylinder longitudinally arranged chain furnace drain steam boiler, equipped with a light chain grate and a stepless speed regulation device, so that the biomass fuel drives the boiler work under the optimal combustion condition. It is equipped with a blower and an induced draft fan to achieve mechanical ventilation. DZL fast-loading biomass boiler is a single-drum longitudinal chain furnace grate boiler, which is not only suitable for combustion molding biomass fuel, but also pure coal or coal-fired and shaped biomass fuel blended fuel. The rated evaporation is 1-8t.

2. Features
1). The heating surface is arranged on both sides of the convection surface of the boiler, the heat exchange efficiency is high, the boiler work efficiency is stable, and at the same time, it has a certain overload operation capability;
2). The boiler body water circulation mode is natural circulation mode, the system design is reasonable, the water capacity is large, the steam operation space is large, and the steam generated is of high quality;
3). The cross-section of each heating surface is reasonable compared with the cross section of the riser, and the combustion conditions of biomass fuel or bituminous coal are very stable;
4). The front and rear arches are properly matched, the coverage of the furnace arch is large, the furnace temperature is high, and the combustible volatiles of coal or biomass fuel can burn more than 20%;
5). Each air chamber can be adjusted according to the amount of air required for each combustion stage of the fuel, and there is no partial burning phenomenon. The lower part of each air chamber is provided with a pull-type cast iron ash door, which is not easy to be deformed, convenient to use, and has good sealing performance. . When the carbon content in the coal slag is not more than 10%, the thermal efficiency of the boiler is higher than 82%.
6). Design a multi-channel smoke-proof wall between the convection tube bundles, so that the flue gas in the combustion chamber enters the convection tube bundle and undergo multiple re-entry. During the re-entry process, the flue gas is used in the flue gas and the smoke-proof wall and the convection tube bundle. Multiple collisions, where vortices are formed. At the same time, the inertial force of the collision between the flue gas and the smoke blocking wall and the tube bundle and the centrifugal force during the formation of the vortex are used for dust removal. With this measure, the initial dust concentration of the boiler body is very low, which is beneficial to reduce the pollution of the boiler smoke to the atmospheric environment.

3. Classification
Biomass boilers are roughly classified into two categories according to their use: one is a biomass thermal boiler and the other is a biomass electric boiler. The principle of the two is basically the same, both get energy through biomass fuel, the first one directly obtains heat energy, and the second one converts heat energy into electric energy. Among the two boilers, thermal boilers are the most widely used and the most mature. According to the volume classification of biomass thermal boilers, it can be divided into the following three forms:
1). Small biomass thermal energy boiler, suitable for household heating and hot water supply equipment, the advantage is small size and easy installation. However, the combustion efficiency is very low. 2). Medium-sized biomass heat boiler. The use of solidified biomass fuels to provide hot water or steam is mostly used in the industry. The advantage is that the technology is relatively mature, the energy loss is small, and the heat energy supply capability is strong. The company's current biomass boilers are mainly medium-sized boilers with a combustion efficiency of over 82%. They are widely used in chemical, pharmaceutical, textile, food, paper and other fields. 3) Large-scale biomass heat boilers. This type of emphasis emphasizes a centralized management and centralized control of thermal energy engineering. The boiler is one of the devices to ensure the normal operation of the entire biomass thermal energy project. Therefore, it requires high requirements for fuel, combustion technology and supporting technology.

4. The parameters comparison of different common fuels  is as follows. According to the table, it is obviously that the renewable fuel is a good choice for users.

5. The more details table about the biomass steam boiler is below:

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