In the existing biomass briquette production market, the screw extrusion-type machines are applied at the earliest. However, the shortcoming of the easily-worn screw head limits their application and large-scale development. In this paper, the main reason of the impact on screw life can be identified by the force and motion analysis of molding biomass. Therefore, theoretical basis for the improvement and optimized design of the molding machine can be provided. Furthermore, new paths which can increase the machine efficiency, reduce production costs and increase biomass briquette production can be found.
By using double-grate biomass briquette combustion equipment, the article carried out the experiments which are the excess air coefficient、 the furnace-tank temperature、 the diameter of fuel 、the thickness of fuel and the operating level influence upon the slagging rate. Then, we found the slagging characteristics of biomass briquette combustion equipment, According to test and investigations, we concluded that the slagging rate of burning double-grate biomass briquette combustion equipment is only about 3% in the best condition; the combustion equipment has low slagging character. Then the author analyzed the slagging process and its influential factors of biomass briquetting combustion. further, the author concluded slag’s form and causes of biomass briquette combustion equipment and we provide a scientific basis for reasonable combustion control、 security and economic combustion.
Under 4 different conditions (the smallest air door αpy =1.60, the smaller air door αpy =2.20, the larger air door αpy =3.16 and the largest air door αpy =4.41), the double fire grates boiler designed by the author have been tested. The corresponding result is that the temperature distribution appears similar law in height, depth and width. Secure, stabile and economical operation of the boiler has been realized on the better work state (between condition 2 and condition 3). It will be an important type of straw briquette boiler. It lays foundation for optimization design of burning equipment and running adjustment.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.