煤田地质与勘探
煤田地質與勘探
매전지질여감탐
COAL GEOLOGY & EXPLORATION
2014年
4期
8-10,15
,共4页
发热量%多元线性回归%预测
髮熱量%多元線性迴歸%預測
발열량%다원선성회귀%예측
calorific value%multivariable linear regression%prediction
发热量是煤质评价和热工计算的重要指标。通过收集内蒙、山西等矿区煤的水分、灰分、挥发分及发热量数据,根据挥发分高低对煤变质程度进行分级,并在此基础上,建立煤的发热量与水分、灰分的多元线性回归分析模型。研究结果表明,研究区煤的发热量与水分、灰分呈反比关系,且随着煤变质程度的降低,水分对发热量的影响逐渐增大,而灰分的影响逐渐降低。运用多元线性回归模型对其他矿区煤的发热量进行预测,并将预测值与实测值进行对比来验证模型的正确性,结果显示,该模型在不同矿区煤的发热量的预测中具有适用性。
髮熱量是煤質評價和熱工計算的重要指標。通過收集內矇、山西等礦區煤的水分、灰分、揮髮分及髮熱量數據,根據揮髮分高低對煤變質程度進行分級,併在此基礎上,建立煤的髮熱量與水分、灰分的多元線性迴歸分析模型。研究結果錶明,研究區煤的髮熱量與水分、灰分呈反比關繫,且隨著煤變質程度的降低,水分對髮熱量的影響逐漸增大,而灰分的影響逐漸降低。運用多元線性迴歸模型對其他礦區煤的髮熱量進行預測,併將預測值與實測值進行對比來驗證模型的正確性,結果顯示,該模型在不同礦區煤的髮熱量的預測中具有適用性。
발열량시매질평개화열공계산적중요지표。통과수집내몽、산서등광구매적수분、회분、휘발분급발열량수거,근거휘발분고저대매변질정도진행분급,병재차기출상,건립매적발열량여수분、회분적다원선성회귀분석모형。연구결과표명,연구구매적발열량여수분、회분정반비관계,차수착매변질정도적강저,수분대발열량적영향축점증대,이회분적영향축점강저。운용다원선성회귀모형대기타광구매적발열량진행예측,병장예측치여실측치진행대비래험증모형적정학성,결과현시,해모형재불동광구매적발열량적예측중구유괄용성。
Calorific value is a basic indicator in coal quality evaluation and thermal calculation. The paper collects data of moisture, ash yield, volatile component and calorific value of coal in different regions and builds multivariable linear regression model between calorific value and moisture content and ash yield. The result shows that with the increasing of volatile component, the influence of moisture on calorific value increased while the influence of ash yield decreased. In order to inspect the accuracy of the model, the calorific value of coal in other regions is calculated and compared with the measured value. The model has high feasibility for the prediction of calorific value in different regions.