In the design and calculation of large inclined belt conveyor, the selection of main parameters should be considered carefully at first, because it is related to the reliable realization of system functions and the safe production of conveying equipment.

　　1帶速。膠帶的速度不僅影響輸送機(jī)的輸送能力、驅(qū)動(dòng)功率等性能指標(biāo)，而且影響滾筒、輸送帶等部件的選擇。對(duì)于大傾角帶式輸送機(jī)，帶速的大小也影響物料輸送的穩(wěn)定性。下料部分,有一個(gè)相對(duì)速度差由于材料和輸送帶,高帶速提供的摩擦可能無法克服材料本身的慣性力,使材料不能與傳送帶保持同步運(yùn)行,導(dǎo)致材料不能運(yùn)輸。因此，不宜選擇帶式輸送機(jī)帶速高的輸送帶。

　　1 band speed. The speed of belt not only affects the conveying capacity and driving power of conveyor, but also affects the selection of drum, conveyor belt and other components. For large inclined belt conveyor, the belt speed also affects the stability of material transportation. In the blanking part, there is a relative velocity difference between the material and the conveyor belt. The friction provided by the high belt speed may not overcome the inertia force of the material itself, so that the material can not run synchronously with the conveyor belt, leading to the material can not be transported. Therefore, it is not appropriate to choose belt conveyor with high belt speed.

　　2模擬摩擦系數(shù)。仿真輸送機(jī)的摩擦因數(shù)直接影響傳動(dòng)功率、膠帶的強(qiáng)度、不回轉(zhuǎn)矩等主要參數(shù)的確定。與普通帶式輸送機(jī)相比，用深溝輥組等裝置計(jì)算額定工況時(shí)，應(yīng)考慮模擬摩擦因數(shù)取較大值。在計(jì)算不回料工況時(shí)，模擬的摩擦因數(shù)與系統(tǒng)特性有關(guān)，應(yīng)取較小的值。

　　2. Simulate the friction coefficient. The friction factor of the simulated conveyor directly affects the determination of the main parameters such as transmission power, belt strength and non-rotating moment. Compared with ordinary belt conveyor, when calculating rated working conditions with deep groove rollers, it is necessary to consider the larger analog friction factor. When calculating the non-return working condition, the simulated friction factor is related to the system characteristics, and should be taken as a smaller value.

　　3輸送帶系數(shù)。大傾角帶式輸送機(jī)和帶材斷裂事故，比臥式輸送機(jī)損傷大得多。因此，輸送帶的系數(shù)應(yīng)取較大的值。但系數(shù)不宜過高，因?yàn)槿≥^大的系數(shù)，就意味著選擇規(guī)格(強(qiáng)度)較高的輸送帶。輸送帶的強(qiáng)度越大，所需厚度越大，橫向剛度越大，進(jìn)槽越大越差，超過極限，不能保證輸送帶實(shí)現(xiàn)有效的夾緊材料。因此，當(dāng)輸送帶因強(qiáng)度過大而無法按設(shè)計(jì)要求進(jìn)入槽內(nèi)時(shí)，有必要考慮其他措施，不僅要滿足輸送帶強(qiáng)度的要求，還要滿足開槽的要求。

　　Safety factor of conveyor belt. The accident of large inclined belt conveyor and belt material rupture is much more serious than that of horizontal belt conveyor. Therefore, the safety factor of conveyor belt should take a larger value. However, the safety factor should not be too high, because taking a larger safety factor means choosing conveyor belts with higher specifications (strength). The greater the strength of the conveyor belt, the greater the thickness required, the greater the transverse stiffness, the worse the grooving, beyond the limit, can not guarantee the conveyor belt to achieve effective clamping materials. Therefore, when the conveyor belt is too strong to enter the tank according to the design requirements, it is necessary to consider other measures, not only to meet the requirements of conveyor belt strength, but also to meet the requirements of slotting.

　　輸送帶下垂:輸送帶下垂越大，接近托輥組時(shí)輸送帶角度越大，物料越不穩(wěn)定。

　　Conveyor belt sag: The larger the conveyor belt sag, the larger the angle of conveyor belt when approaching the roller group, the more unstable the material is.

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