Abstract:
본 발명은 하이드로겔 바인더를 이용한 성형탄 제조 방법에 관한 것으로, PVA(PolyVinyl Alcohol)와 물을 75도 내지 85도의 온도에서 혼합하는 단계, 상기 PVA와 물의 혼합물에 글리세린을 주입하여 하이드로겔을 생성하는 단계, 상기 하이드로겔과 촤를 혼합하여 성형하는 단계, 및 상기 성형물을 50도 내지 90도의 온도 범위에서 20 내지 28시간 건조, 또는 200도 내지 250도의 온도 범위에서 1시간 내지 3시간 건조하는 단계를 포함하며, 이를 통해 석탄의 성형 강도가 증가하고 착화온도가 낮아진다.
Abstract translation:本发明涉及使用水凝胶粘合剂的煤砖的制造方法,其包括在75-85℃下混合聚乙烯醇(PVA)和水的步骤。 C,通过将甘油注入PVA和水的混合物中制备水凝胶的步骤,通过混合水凝胶和Char来模制步骤,以及将模塑产品在50-90度下干燥20-28小时的步骤,或在 200-250度 C 1-3小时。 因此,煤的成形强度提高,点燃温度降低。
Abstract:
The present invention relates to a coal gas generation system using low grade coal and a generation method thereof. The coal gas generation system using low grade coal includes a rotary kiln unit, a transfer unit, and an after combustion unit. The rotary kiln unit includes: a first opening part and a second opening part which are formed to be connected and face each other; a rotary kiln furnace which pyrolizes low grade coal and discharges the low grade coal in the form of char and coal gas; a heat storage through an initial warm-up for the rotary kiln furnace which is formed with a fireproof material and an insulating material; at least one first burner which provides heat which is necessary for maintaining a flame of the volatile matter of the pyrolized low grade coal and maintaining the internal temperature of the rotary kiln; and a discharge unit which discharges char which is generated in the rotary kiln by being connected to the second opening part. The transfer unit transfers low grade coal to the rotary kiln furnace by being connected to the first opening part. The after combustion unit: is connected to the first opening part; includes at least one second burner which provides heat which is necessary for the second combustion of coal gas which is discharged from the rotary kiln furnace and the proper temperature maintenance of exhaust gas which is discharge in the after combustion unit; and discharges coal gas in an exhaust gas form in which combustible and explosive materials are removed by burning the coal gas. Like the forementioned, the coal gas generation system using low grade coal of the present invention is able to generate char which can be used as smokeless fuel by pyrolizing the low grade coal and is also able to generate exhaust gas which can be used in a thermal energy generation. The present invention is also able to not only protect an air environment but also save energy by using coal gas which may cause environmental pollution in a thermal energy generation without discharging the coal gas to the outside.
Abstract:
PURPOSE: A particle separating device is provided to extend the lifespan of a filter and improve an efficiency of particle separation by separating plenty of dust comprised in gas from a particle layer before the gas passes through a final filter. CONSTITUTION: A particle separating device comprises a particle separator, a particle layer filter (30), a gas transferring pipe (40), and a collector. The particle separator receives mixed gas which is mixed with solid particles and firstly separates the mixed gas into solid particles and gas. The particle layer filter is possibly opened by being in vertical connection with the particle separator. The solid particles from the particle separator are stacked to form a particle layer (38) in the particle layer filter. A gas outlet (33) is formed on the lateral lower side of the particle layer filter and comprises a filter (34) for the outflow of gas. The gas transferring pipe supplies the gas from the particle separator into the particle layer. The collector collects discharged solid particles.
Abstract:
PURPOSE: A single thread cyclone fine particle separator using variable gas discharge pipes is provided to control the particle recovery efficiencies and pressure drop level. CONSTITUTION: A single thread cyclone fine particle separator using variable gas discharge pipes comprises a main body(1), a swirl inducing part(2), a gas exhausting tube(3), a length changing tool, a flow rate measuring tool(5), and a control unit(6). The main body has an enlarged part(11), a particle collecting part(12) and an inlet pipe(13). The high pressure mixing gas is flowed into the inlet tube. The swirl inducing part is formed at the inner upper end of the main body and includes the inflow mixed gas to be closely attached to the inner wall of the main body.