安徽化工
安徽化工
안휘화공
ANHUI CHEMICAL INDUSTRY
2014年
5期
47-49,52
,共4页
高硫煤%微波处理%脱硫%NaOH溶液浸渍
高硫煤%微波處理%脫硫%NaOH溶液浸漬
고류매%미파처리%탈류%NaOH용액침지
coal with high content of sulfur%microwave treatment%desulfurization%NaOH solution soaking
考查了高硫煤直接微波处理、浸渍不同浓度NaOH溶液后微波处理及其与磁选相结合的手段对脱硫效率的影响，结果表明：高硫煤样直接经微波辐照处理具有一定的脱硫效果，但脱硫率较低。原煤经不同NaOH溶液浸渍后，再经微波处理，其脱硫效果明显提高。在采用2 mol/L NaOH溶液浸渍后，经700W微波功率处理60s，其脱硫率达到最大，为45.2%。磁选对脱硫效率的影响受微波功率的影响较大。在本实验条件下，采用900W微波功率处理，经磁选后脱硫率明显提高。
攷查瞭高硫煤直接微波處理、浸漬不同濃度NaOH溶液後微波處理及其與磁選相結閤的手段對脫硫效率的影響，結果錶明：高硫煤樣直接經微波輻照處理具有一定的脫硫效果，但脫硫率較低。原煤經不同NaOH溶液浸漬後，再經微波處理，其脫硫效果明顯提高。在採用2 mol/L NaOH溶液浸漬後，經700W微波功率處理60s，其脫硫率達到最大，為45.2%。磁選對脫硫效率的影響受微波功率的影響較大。在本實驗條件下，採用900W微波功率處理，經磁選後脫硫率明顯提高。
고사료고류매직접미파처리、침지불동농도NaOH용액후미파처리급기여자선상결합적수단대탈류효솔적영향，결과표명：고류매양직접경미파복조처리구유일정적탈류효과，단탈류솔교저。원매경불동NaOH용액침지후，재경미파처리，기탈류효과명현제고。재채용2 mol/L NaOH용액침지후，경700W미파공솔처리60s，기탈류솔체도최대，위45.2%。자선대탈류효솔적영향수미파공솔적영향교대。재본실험조건하，채용900W미파공솔처리，경자선후탈류솔명현제고。
The effects of desulfurization of coal with high content of sulfur by direct microwave treatment and soaking of coal with NaOH solution before microwave treatment and magnetic separation for the microwave treated coal were investigated in this study. The results suggest that there was a desulfurization effect in certain extent by the direct microwave radiation, but the desulfurization effect was low. When coal was soaked with NaOH solution and then treated by microwave radiation, the desulfurization effect increased obviously. After soaking by NaOH solution with the concentration of 2 mol/L, the coal was treated by microwave radiation with radiation power 700W for 1 minute, the maximal desulfurization efficiency was reached as 42.5%. The effect of desulfurization efficiency after magnetic separation was influenced by the microwave power. In our experimental conditions, when the coal after soaking was treated in 900W microwave power, the desulfurization rate could be increased greatly by the magnetic separation.
