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Hunan Changhong Boiler Technology Co., Ltd is manufacturers specializing in boilers in China.
Our company owns a group of high quality R & D staff and professional & efficient management team. Through implementation of full quality management, our company has  passed ISO9000 quality system certification. Our company has hired experts with technical expertise to ensure the company to be at industrial leading position and technological frontier.
Our company has developed all kinds of boilers, which have passed quality certificates from Chinese government.
Biomass boiler:
Biomass fired boiler use such biomass as straw, rice husk, waste wood and etc. as fuel to generate heat water or steam, which has following advantages:
The double-pot tube is vertically arranged and assembled on the upper and lower sides, and the flue gas laterally flushes the convection tube, which lead to better heat transfer effect;
Horizontal three-return water pipe structure, quick starting pressure boost, stable steam pressure, sufficient output and good steam quality;
Larger combustion chamber and stable combustion process, so that the fuel is fully burned, the boiler itself has good smoke and dust removal effect, and the thermal efficiency is higher;
The convection heating surface is equipped with a soot blowing device, so that, It is very convenient to clean the inside of the boiler and the pipe without stopping the furnace, and the maintenance is very convenient;
Using warehouse-type double-side air supply device, each air chamber can be independently adjusted to adapt to the combustion characteristics of the chain grate;
It can run 24 hours a day, and is most suitable for continuous steam supply enterprises.
Coal boiler:
SZL series coal fired boilers own horizontally assembled double-pot, vertical-type water tube and shell-type chain grate. The chain furnace is used for layer burning, and the economizer is installed at the tail, so that higher heat transfer efficiency, more reasonable water circulation system, larger  water capacity, the large steam space and better steam quality.
Coke gas boiler:
Coke gas fired boiler use coke oven gas as fuel to generate steam. The coke gas will be produced during the process of refining coke.
Electrical boiler:
Electric boiler converts electrical energy into heat and heats the water to hot water or steam. It does not need furnaces, flue and chimneys, and does not require a place to store fuel, to greatly reduce pollution caused by conventional coal boilers.
Hot air stove:
The hot blast stove is a heating device that forms hot air.
Industrial waste heat boiler:
To use industrial waste heat from cement plant, steel mill, paper mill and etc. as heat resource to generate hot water or steam.
Natural gas boiler:
Natural gas fired boiler has such features as compact structure, safe & reliable run, easy operation, quick installation, less pollution and low noise.
Oil boiler:
Oil fired boiler has such features as compact structure, safe & reliable run, easy operation, quick installation, less pollution and low noise.
Water coal slurry boiler:
Water coal slurry fired boiler uses coal-water slurry as a fuel. Coal water slurry is a liquid consisting of about 70% pulverized coal, about 30% water and a small amount of chemicals, which can be pumped, atomized, stored and transported like oil.
Steam tank:
Besides domestic market, our products are mainly sold to Europe, America, Southeast Asia, Middle East, Africa and so on.
We hope we can set up long terms of friendly cooperative relationship with customers from home and abroad. And we are also expecting you to become our sales representative in your local market.