全自动搅拌一体车配料过程中产生误差的原因_公司新闻_新闻资讯_自动搅拌一体车_自动搅拌一体机

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全自动搅拌一体车配料过程中产生误差的原因

所属分类：公司新闻发布时间：2021-03-27 来源：http://www.shanqijituan.cn/ 浏览量：0

全自动搅拌一体车工作时前期准备工作很重要的一环就是配料，而配料又是混凝土制备工艺中的一个重要环节，各种搅拌物料必须计量准确。配制混凝土必须严格控制配料，以保证混凝土硬化后能达到设计标号。下面搅拌车厂家就为您分析一下：全自动搅拌一体车配料过程中产生误差的原因

Batching is a very important part of the preparation work of the automatic mixer truck, and batching is an important part of the concrete preparation process, all kinds of mixing materials must be measured accurately. The mixing of concrete must be strictly controlled to ensure that the concrete can reach the design mark after hardening. The following mixer manufacturers will analyze for you: the causes of errors in the batching process of automatic mixer

一、结构不合理产生计量误差

1、 Measurement error caused by unreasonable structure

为了使传感器受力均匀，应使骨料进入称料斗后与称料斗的在一条垂线上。实际上，骨料并非均质材料，加上斗本身设计制作上的误差，使理论与实际不重合，造成三个传感器受力不均产生误差。

In order to force the sensor evenly, the center of gravity of the aggregate entering the weighing hopper should be in a vertical line with the center of gravity of the weighing hopper. In fact, the aggregate is not a homogeneous material, and the design and manufacture error of the bucket itself makes the theoretical center of gravity not coincide with the actual center of gravity, resulting in the uneven stress of the three sensors and errors.

二、配料控制系统元器件本身的稳定性与可靠性产生误差。

2、 The stability and reliability of components in batching control system produce errors.

在国内的混凝土搅拌站中，水和添加剂一般通过流量计计量。由于流量计自身测量原理的限制，被测介质必须在规定的流量、流速、温度、压力、介质稳定等条件下测量，才能保证测量的准确性。实际应用中，由于这些条件的波动导致流量计测量误差。

In domestic concrete mixing plants, water and additives are usually measured by flow meters. Due to the limitation of the measuring principle of the flowmeter, the measured medium must be measured under the specified flow rate, flow rate, temperature, pressure, medium stability and other conditions to ensure the accuracy of measurement. In practical application, the fluctuation of these conditions leads to the measurement error of flowmeter.

三、人为因素产生误差。

3、 Human factors produce errors.

全自动搅拌一体在配料过程中，当称料斗中的物料达到设定值时，给料皮带机就会自动停止(气动给料门关闭)，但此时仍有部分物料从空中落入称料斗，这部分物料的重量称为落差。

In the batching process, when the materials in the weighing hopper reach the set value, the feeding belt conveyor will stop automatically (the pneumatic feeding door is closed), but at this time, some materials still fall into the weighing hopper from the air, and the weight of these materials is called the drop.

大部分配料机不会自动修正落差。但为了保证配料精度，一般对物料的落差值进行人为修正，将设定值减去落差值。落差值设定后，由于骨料或干或湿，或是受装载机加料时的冲击，实际落差与设定落差值之间也会产生误差。

Most batching machines do not automatically correct the drop. However, in order to ensure the accuracy of batching, the drop value of materials is usually artificially corrected by subtracting the set value from the drop value. After setting the drop value, because the aggregate is either dry or wet, or impacted by the loader when feeding, there will be errors between the actual drop value and the set drop value.

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