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大倾角带式输送机输送带的特点

来源:ag国际亚游官网 时间:2020-06-18 18:46:51 浏览次数:
带式输送机作为重要的散装物料输送设备,它的应用越来越广泛,近二十年来,我国带式输送机设计、制造技术得到了非常迅速发展。能够安全将物料运送到指定目的地的带式输送机倾斜角度为10°~18°,如果超过此倾斜角度,物料就会在胶带上出现相对滑动,严重时会出现全部滑落,使带式输送机不能正常工作。深槽带式输送机可以很好地解决上述问题,可以实现大倾角运输,结构简单,运行可靠。
As an important bulk material conveying equipment, belt conveyor has been used more and more widely. In recent 20 years, the design and manufacturing technology of belt conveyor in China has developed rapidly. The inclined angle of the belt conveyor that can safely transport materials to the designated destination is 10 ° - 18 °. If the inclined angle is exceeded, the materials will slide relatively on the belt, and in serious cases, all the materials will slide, so that the belt conveyor can not work normally. The deep trough belt conveyor can solve the above problems well, and can realize the transportation with large inclination angle. The structure is simple and the operation is reliable.
带式输送机运行时必须保证物料与胶带不出现相对运动,保证物料与物料、物料与胶带之间有足够大的摩擦力。一般在设我们可以遵循下列原则:
When the belt conveyor is running, it must be ensured that there is no relative movement between the material and the belt, and that there is enough friction between the material and the material, and between the material and the belt. Generally, we can follow the following principles in design:
(1)减少中间水平托辊的长度,
(1) Reduce the length of the intermediate horizontal idler,
(2)增加托辊槽角,
(2) Increase idler groove angle,
(3)加长侧托辊长度。
(3) Lengthen the length of side idler.
前两点将增大物料与胶带之间的摩擦力,后一点将增加托辊对物料及物料与物料之间的夹持长度。一般在设计托辊组时都采用深槽四节辊形式。
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The first two points will increase the friction between the material and the tape, and the second point will increase the holding length of the idler to the material and between the material and the material. Generally, in the design of idler set, deep groove four section roller is used.
大倾角带式输送机物料在输送带上的横截面积的大小与输送能力大小有着直接的关系,深槽托辊组与普通槽形托辊组的横截面积计算原理都相同,下面对两托辊组进行横截面积分析,得到一般规律公式。
There is a direct relationship between the cross-sectional area of the material on the conveyor belt and the conveying capacity of the belt conveyor. The calculation principle of the cross-sectional area of the deep groove roller group and the ordinary groove roller group is the same. The cross-sectional area of the two roller groups is analyzed and the general rule formula is obtained.
水平输送时,输送带上物料的横截面面积S,可按下式计算:
When conveying horizontally, the maximum cross-sectional area s of the material on the conveyor belt can be calculated as follows:
S=S1+S2
S=S1+S2
式中:S1-输送带上物料的上部横截面面积(m2);S2-输送带上物料的下部横截面面积(m2)。
Where: S1 - the upper cross-sectional area of the material on the conveyor belt (M2); S2 - the lower cross-sectional area of the material on the conveyor belt (M2).
三托辊输送带上物料的横截面面积(见图1),可按下列公式计算:
The cross-sectional area of the material on the three roller conveyor belt (see Figure 1) can be calculated according to the following formula:
式中:l3-承载托辊组中中间水平托辊的长度(m);b-输送带装载物料的有效宽度(m);B≤2m,b=0.9B-0.05m;B≤2m,b=B-0.25m;λ-槽形托辊组侧辊轴线与水平线间的夹角
Where: L3 - length of the intermediate horizontal idler in the carrier roller group (m); B - effective width of the material loaded on the conveyor belt (m); B ≤ 2m, B = 0.9b-0.05m; B ≤ 2m, B = b-0.25m; λ - angle between the side roller axis of the trough carrier roller group and the horizontal line
(简称槽角)(°);θ-被输送物料的动堆积角(°)。θ值与物料的特性、流动性、输送带速度和输送机长度有关。通常动堆积角比静堆积角小5~15°,有些物料可能小20°。如果没有动堆积角的实测数据,可按物料的静堆积角的50%~75%近似计算。
(abbreviated as slot angle) (° for short); θ - Dynamic stacking angle of transported material (° for short). The value of θ is related to the characteristics of materials, fluidity, belt speed and conveyor length. Generally, the dynamic stacking angle is 5-15 ° smaller than the static stacking angle, and some materials may be 20 ° smaller. If there is no measured data of dynamic stacking angle, it can be approximately calculated as 50% - 75% of the static stacking angle of materials.
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