破碎篩分流程的計(jì)算是怎樣的
破碎篩分流程的計(jì)算，一般只是確定各個(gè)破碎產(chǎn)品的和篩分產(chǎn)品的絕對(duì)重量，即產(chǎn)量（噸/時(shí)）。以Q表示，和相對(duì)重量即產(chǎn)率（%）表示，以此作為選擇破碎的篩分設(shè)備的依據(jù)，并使各段的負(fù)荷能夠大致平衡，使各段的破碎機(jī)與篩分機(jī)處于最優(yōu)狀態(tài)下工作。
應(yīng)該之處，當(dāng)破碎作業(yè)中有預(yù)選，洗礦（脫泥），選別作業(yè)時(shí)，則預(yù)選、洗礦、選別的產(chǎn)品還應(yīng)計(jì)算其品位和回收率，
在破碎篩分的過程中，僅是礦石的粒度以及粒度組成發(fā)生變化，而進(jìn)入個(gè)作業(yè)的產(chǎn)物重量（或產(chǎn)率）與從該作業(yè)排除的產(chǎn)品重量仍然是相等的，少量機(jī)械損失或其他流失在計(jì)算時(shí)均不考慮，過意各產(chǎn)品或產(chǎn)率的計(jì)算均可按重量或產(chǎn)率的平衡方式來求出。
由于破碎作業(yè)的工作制度往往與磨礦作業(yè)不同，所以破碎作業(yè)的處理能力（噸/時(shí)）計(jì)算即為選礦廠規(guī)模（噸/天）除以破碎作業(yè)的工作時(shí)數(shù)，
原礦粒度特性曲線可以通過工業(yè)試驗(yàn)確定，也可以借用可碎性相近的典型粒度特性曲線、有時(shí)即直接應(yīng)用原礦式型粒度曲線，
可以通過工業(yè)性試驗(yàn)直接測(cè)定，但測(cè)定工作量太大，一般可以根據(jù)礦石可碎性試驗(yàn)或功指數(shù)值選用類似選礦廠的實(shí)際粒度特性曲線，也可以根據(jù)典型粒度的特性曲線確定、
篩條效率要根據(jù)實(shí)際資料合理選擇，粗碎和中碎的作預(yù)先篩分用的條篩，篩分效率一般在50-60%，中碎和粗碎的預(yù)先篩分用的條篩。篩分效率一般在80-85%。篩孔尺寸和篩孔效率的正確選擇，對(duì)篩子的生產(chǎn)能力影響很大，篩孔尺寸一般在破碎機(jī)排礦口與破碎產(chǎn)品最大粒度之間選取，或根據(jù)工藝要求確定。
How to calculate the crushing and screening process.
破碎篩分流程的計(jì)算，一般只是確定各個(gè)破碎產(chǎn)品的和篩分產(chǎn)品的絕對(duì)重量，即產(chǎn)量（噸/時(shí)）。以Q表示，和相對(duì)重量即產(chǎn)率（%）表示，以此作為選擇破碎的篩分設(shè)備的依據(jù)，并使各段的負(fù)荷能夠大致平衡，使各段的破碎機(jī)與篩分機(jī)處于最優(yōu)狀態(tài)下工作。
Crushing and screening process of the calculation, generally only to determine the absolute weight of the various crushing products and screening products, that is, production (T / h). In Q said, and relative weight that yield (%) said that so as to selection on the basis of crushing and screening equipment, and sections of the load can be roughly balanced, the sections of the crusher and sieving machine work in the best condition.
應(yīng)該之處，當(dāng)破碎作業(yè)中有預(yù)選，洗礦（脫泥），選別作業(yè)時(shí)，則預(yù)選、洗礦、選別的產(chǎn)品還應(yīng)計(jì)算其品位和回收率，
It should be, when the crushing operation in the pre selection, washing (mud), the election of the job, the pre selection, washing, and other products should be calculated to calculate the grade and recovery rate,
在破碎篩分的過程中，僅是礦石的粒度以及粒度組成發(fā)生變化，而進(jìn)入個(gè)作業(yè)的產(chǎn)物重量（或產(chǎn)率）與從該作業(yè)排除的產(chǎn)品重量仍然是相等的，少量機(jī)械損失或其他流失在計(jì)算時(shí)均不考慮，過意各產(chǎn)品或產(chǎn)率的計(jì)算均可按重量或產(chǎn)率的平衡方式來求出。
In the process of crushing and screening, the size of the ore is changed, and the product weight (or yield) is equal to the weight of the product, which is not considered in the calculation.
由于破碎作業(yè)的工作制度往往與磨礦作業(yè)不同，所以破碎作業(yè)的處理能力（噸/時(shí)）計(jì)算即為選礦廠規(guī)模（噸/天）除以破碎作業(yè)的工作時(shí)數(shù)，
As the operating system of the crushing work is often different from the grinding operation, the processing capacity of the crushing operation (T / h) is calculated as the number of the working hours of the ore dressing plant (T / D) divided by the number of jobs,
原礦粒度特性曲線可以通過工業(yè)試驗(yàn)確定，也可以借用可碎性相近的典型粒度特性曲線、有時(shí)即直接應(yīng)用原礦式型粒度曲線，
Ore grain size characteristic curve can be determined through industrial test and can also borrow broken similar typical characteristic size curve, sometimes application directly, ore type, particle size curve,
可以通過工業(yè)性試驗(yàn)直接測(cè)定，但測(cè)定工作量太大，一般可以根據(jù)礦石可碎性試驗(yàn)或功指數(shù)值選用類似選礦廠的實(shí)際粒度特性曲線，也可以根據(jù)典型粒度的特性曲線確定、
Can be directly measured by industrial test, but the amount of work is too large, the general can be determined according to the ore can be broken test or power refers to the actual size of the ore dressing plant, can also be determined according to the characteristics of the typical grain size curve,
篩條效率要根據(jù)實(shí)際資料合理選擇，粗碎和中碎的作預(yù)先篩分用的條篩，篩分效率一般在50-60%，中碎和粗碎的預(yù)先篩分用的條篩。篩分效率一般在80-85%。篩孔尺寸和篩孔效率的正確選擇，對(duì)篩子的生產(chǎn)能力影響很大，篩孔尺寸一般在破碎機(jī)排礦口與破碎產(chǎn)品最大粒度之間選取，或根據(jù)工藝要求確定。
Screen efficiency according to the actual data reasonable choice, and the crushing and crushing of the screening, screening efficiency is generally in the 50-60%, in the crushing and crushing of the pre screening sieve. Screening efficiency is generally 80-85%. The correct selection of the mesh size and mesh efficiency and production capacity of sieve effect, sieve size general crusher row between the maximum mine mouth and crushing product size selection, or according to the technological requirements identified.
|
