中国煤炭
中國煤炭
중국매탄
CHINA COAL
2014年
10期
89-93,98
,共6页
配煤研究 δ±0?1 含量%方案优化%精煤产率%数学模型
配煤研究 δ±0?1 含量%方案優化%精煤產率%數學模型
배매연구 δ±0?1 함량%방안우화%정매산솔%수학모형
research of coal blending%δ±0.1 content%scheme optimization%cleaned coal yield%mathematical model
针对两组可选性存在差异的原煤提出了不同的配洗方案，选用适当提高难选煤精煤产率、灰分以及降低易选煤产率灰分的方法，逼近等分界灰分分选。分析了分选密度在变化幅度相同时，δ±0?1含量对精煤产率和灰分变化量的影响。随着δ±0?1含量的增大，精煤产率与灰分的提高幅度的差距也增大。进一步建立了精煤产率、灰分的变化量与δ±0?1含量、分选密度变化量之间的数学模型，从而为生产实践中分选参数的确定以及提高精煤产率提供了参考。
針對兩組可選性存在差異的原煤提齣瞭不同的配洗方案，選用適噹提高難選煤精煤產率、灰分以及降低易選煤產率灰分的方法，逼近等分界灰分分選。分析瞭分選密度在變化幅度相同時，δ±0?1含量對精煤產率和灰分變化量的影響。隨著δ±0?1含量的增大，精煤產率與灰分的提高幅度的差距也增大。進一步建立瞭精煤產率、灰分的變化量與δ±0?1含量、分選密度變化量之間的數學模型，從而為生產實踐中分選參數的確定以及提高精煤產率提供瞭參攷。
침대량조가선성존재차이적원매제출료불동적배세방안，선용괄당제고난선매정매산솔、회분이급강저역선매산솔회분적방법，핍근등분계회분분선。분석료분선밀도재변화폭도상동시，δ±0?1함량대정매산솔화회분변화량적영향。수착δ±0?1함량적증대，정매산솔여회분적제고폭도적차거야증대。진일보건립료정매산솔、회분적변화량여δ±0?1함량、분선밀도변화량지간적수학모형，종이위생산실천중분선삼수적학정이급제고정매산솔제공료삼고。
Different blending schemes for two groups of raw coal with different was habilityG have been discussed in this paper.It was found that we can improve the cleaned coal yield and ash of difficult separation coal and reduce the cleaned coal yield and ash of easy separation coal to apG proximate the same cutGpoint ash.The influence ofδ±0.1 content on the yield of cleaned coal and ash variation was analyzed,as well as separation density variation.The results showed that the yield variation ratio is larger than the ash variation ratio for cleaned coal with the increase ofδ±0.1 content.Based on the study,a mathematical model was established on yield and ash variaG tion of clean coal andδ±0.1 content/the separation density variation,which can guide the separaG tion parameter setting in production for higher cleaned coal yield.
