DZH horizontal hand fired biomass steam boiler

NegotiableUpdate on 04/23

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Overview

DZH horizontal hand fired biomass steam boiler

Product Details

Introduction to the 2015 New DZH Series Biomass Hand fired Steam Boiler by Henan Sitong Boiler Co., Ltd. in China

Biomass boiler fuel has a wide range of sources and is a renewable green energy source. It has almost no sulfur content and low ash content. Its growth process can absorb all the CO2 generated during combustion, achieving zero CO2 emissions. Biomass energy will gradually replace coal as one of the main energy sources. Biomass fuels include straw, wood branches, bamboo and wood processing waste, grain husks, fruit shells, sugar residue, oil residue, etc. According to its shape and size, it can be divided into three types: chip (≤ 3mm), sheet (≤ 50mm), and strip (>50mm).
Our company has been collaborating with well-known domestic universities and absorbing advanced technologies from domestic and foreign peers since 2003, gradually developing biomass boilers and continuously improving them in practical operation. Currently, mature and stable technologies and products have been widely applied. Based on the characteristics and shape dimensions of different biomass, we have developed four combustion methods: fixed grate, movable grate, chain grate, and chamber combustion. There are also three main body structures: horizontal water pipe, single vertical, and double vertical, and four major series of biomass fuel boilers. Unlike coal-fired boilers, the main features of our company's biomass fuel boilers are as follows: by designing and arranging secondary air inside the furnace, the dynamic working conditions of the flue gas are disturbed, oxygen is replenished in a timely manner to burn out volatile matter, thermal efficiency is improved, and emissions are reduced. Reasonable design ensures the protection of the arch and rear grate, and avoids periodic micro explosions in the furnace. For waste materials containing moisture, increase the length of the preheating section, provide effective heat sources for heating, or directly input them into the high-temperature section of the hot flue gas. For high peak gas consumption loads or waste materials containing adhesive and other easily coking components, a large number of heating surfaces should be arranged in the furnace to solve the problem. Design multiple feeding methods and a single feeding method for users to choose from for waste materials with various states such as blocks, strips, pieces, chips, and powders.
Compared with coal-fired boilers, biomass fuel has lower costs and significantly reduces operating expenses. Our company can independently design products based on the usage requirements of various biomass fuels for users, providing them with the best value.

Detailed introduction of the new DZH series biomass hand fired steam boiler

1、 Applicable fuel
This product adopts a fast furnace combustion method and can burn wood chips, blocks, strips, bark, bamboo fibers, clothing and luggage enterprise waste, broken agricultural straw, etc.
Structural Features
(1) The boiler drum is composed of an arch shaped tube plate and a threaded smoke pipe, which changes the structure of the drum from a quasi steel body to a quasi elastic body, eliminates the tension support in the tube plate area, and reduces stress. The smoke tubes inside the tube sheet have been changed from two return loops to a single return loop, solving the problem of tube sheet cracking.
(2) Due to the installation of a rising pipe row at the bottom of the drum, the dead water area at the bottom of the drum is eliminated, making it difficult for sludge to deposit. The high-temperature area of the drum can be well cooled, preventing bulging at the bottom of the drum.
(3) The use of high-efficiency heat transfer threaded smoke pipes has achieved enhanced heat transfer effects, achieving the characteristics of fast boiler heating and pressure rise, and improving the thermal efficiency of the boiler.
(4) Compact structure, compared with boilers of the same type, with smaller external dimensions, saving investment in boiler room infrastructure.
(5) Stable operation, easy adjustment, and sufficient output.
(6) The use of threaded smoke pipes enhances heat transfer, improves heat transfer coefficient and thermal efficiency, due to the disturbance effect of smoke inside the pipes. The smoke pipe is not prone to dust accumulation and has a self-cleaning effect.
(7) The octagonal wall inside the furnace and the exit smoke window have a certain dust reducing effect. The original dust concentration of the boiler is controlled below the standard, ensuring that the boiler's smoke and dust emissions meet the national environmental protection regulations.
(8) The unique double-layer secondary air design improves the ignition conditions of biomass fuel, adopts independent air chambers, achieves reasonable air distribution, and forms an aerodynamic field conducive to combustion in the furnace, resulting in high combustion temperature and efficiency.
3、 Performance characteristics
(1) According to the characteristics of the fuel, manual feeding or mechanical feeding methods are used;
(2) By adjusting the secondary air flow rate, the combustion ignition speed can be controlled;
(3) Long wooden strips (L ≤ 2m) can burn without breaking;
(4) No requirement for uniform feeding.

Four way boiler 2015 new DZH series biomass hand fired steam boiler finished product picture display

Four way boiler 2015 new DZH series biomass hand fired steam boiler delivery site picture display

4、 Technical parameters

Description of 2015 New Biomass Forming Fuel for Four way Boiler

Biomass pellet or Biomass Molding Fuel (BMF) is a type of fuel that uses agricultural and forestry waste (such as straw, sawdust, sugarcane bagasse, etc.) as raw materials and undergoes processes such as crushing, drying, mixing, and extrusion to produce pellets, rods, blocks, etc. A new type of clean fuel mainly used to replace traditional fossil fuels (coal, oil, natural gas) and directly burned in specially developed biomass burners.
1. Composition of Biomass Forming Fuel BMF
BMF is composed of combustible materials, inorganic substances, and moisture, mainly containing carbon (C), hydrogen (H), oxygen (O), and small amounts of nitrogen (N), sulfur (S), and other elements, as well as ash and moisture. The composition of various components is as follows:
▲ Carbon: BMF fuel is a low-carbon fuel with a low carbon content (about 45-50%), especially a low fixed carbon content (about 16%), resulting in low carbon emissions during combustion.
▲ Hydrogen: BMF fuel has a high hydrogen content (about 5-8%) and high volatile matter (greater than 70%), therefore it has good combustion characteristics.
▲ Oxygen: BMF fuel has a high oxygen content (about 35-40%). The oxygen content of biomass fuel is significantly higher than that of mineral coal, which makes biomass fuel easier to ignite.
▲ Sulfur: BMF fuel has a sulfur content of less than 0.08%, which is environmentally friendly and does not require the installation of flue gas desulfurization devices during combustion.
Ash content: BMF pellet fuel mainly uses high-quality woody biomass as raw material, with a low ash content of only 1.5-3%.
2. Heating Value of Biomass Forming Fuel BMF
The calorific value of biomass formed fuel BMF is 15-19MJ/Kg, which is about 2-3kgBMF to replace 1Kg of fuel oil or 1 cubic meter of natural gas.
3. Characteristics of Biomass Forming Fuel BMF
As a high-quality homogeneous fuel, formed fuel can be automatically controlled in terms of transportation, storage, transmission, and combustion, and its convenience can be comparable to that of light fuel;
Solid fuel, high density, small volume, safe and convenient storage, clean and tidy;
▲ High volatile matter of fuel, easy ignition, good combustion characteristics, and high burnout rate;
▲ The sulfur content is extremely low, only about 1/20 of fuel oil, and no desulfurization or denitrification measures need to be taken to meet environmental requirements;
▲ Low ash content, conventional dust removal devices can meet environmental requirements;
▲ "0" emissions: The CO2 emitted from biomass combustion is the same as the CO2 absorbed during its growth process, and it replaces fossil fuels, reducing net emissions. According to the Kyoto Protocol mechanism, biomass fuel CO2 is an ecological "0" emission.
4. Main technical parameters

Henan Sitong Boiler Co., Ltd., China【Four way Boiler Group】
Corporate legal representative and chairman: Feng Kun Mobile:187-3620-9989
Mobile phone of General Manager of Sitong Sales Department:136-7342-3999

National 24-hour sales service hotline:400-002-9989
Phone: 0394-6777989
Fax: 0394-6777989
Enterprise online QQ: 408999627
Email: 408999627@qq.com

Official website of Sitong Boiler Group:http://www.hnstguolu.com/