Conveying Characteristics of Furnace Sorbent Injection

For the purpose of researching the furnace sorbent injection characteristics of gas solid two phase flow,a 1∶1 improvement of test bench for the pneumatic conveying system in actual industry was conducted.A series of tests were carried out: firstly,the test for the flow modes of furnace sorbent injection in conveying pipes;then the test for properties of between the solid-gas ratio and the gas flow,the mass flow ratio and total pressure;finally,the research of the influence from nozzle position to total pressure and mass flow ratio.The test results indicated that the flow mode of the furnace sorbent injection pneumatic conveying is mainly based on the dilute phase,of which,the conveying speed of 10-12ms-1;with the mass flow ratio and gas flow of the curve with the total pressure than the solid-gas ratio curve,a trend similar to that in the beginning of linear increase then gradually flat;Nozzle position of the best value is 32mm.The research results will provide basis for and be directive for the engineer design,operation and the theoretical study of the furnace sorbent injection pneumatic conveying systems.