Recently, the construction project of straw-based coal-fired closed direct-fired heating project undertaken and implemented by Tianjin Agricultural Machinery Bureau and Baoji District Agricultural Machinery Center completed all construction contents. The straw heating boiler was officially put into operation in Bajie Town, Baodi District. A total of three demonstration sites of Huanxizhuang Village, Huanxizhuang Primary School and Qingshui Siyuan Agricultural Planting Cooperative were built. Five straw direct-fired boiler systems were introduced to meet the heating requirements of 23,000 m2 area. The daily consumption of rice straw was about 10 tons. The entire heating season is expected to be effective. Processing 1,500 tons of straw, saving the cost of 379,500 yuan. After the boiler was successfully operated, the inlet and outlet temperatures reached 40 °C ~ 60 °C on average, and the room temperature of the demonstration point reached above 18 °C. The heating effect was good and it was recognized by the people.

The use of straw instead of coal-fired heating is the first case in Tianjin. The implementation of the project has made beneficial exploration and practice for straw resource utilization and beautiful rural construction, and improved and improved the quality of life of farmers. First, ease resource constraints. The boiler heating system fully exploits the straw used in waste incineration in the past, turning waste into treasure, effectively increasing the energy supply in rural areas and improving the energy structure. Second, reducing environmental pressure. The effective use of straw effectively curbs the open storage of straw and burns it at will, which not only reduces the fire hazard, but also plays a positive role in maintaining rural environmental sanitation and improving the atmospheric environment. Third, reducing heating costs. The implementation of the project has reduced the amount of raw coal used for heating in rural households and units, and reduced heating costs. Fourth, improving the living environment. The project adopts the form of central heating. The heating is higher and more stable than ordinary boilers and heating furnaces, so that the people can enjoy the comfort of the building in advance.


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