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失重称Weightlessness

失重称Weightlessness

  • 所属分类:失重称Weightlessness
  • 发布日期:2019-07-31
  • 产品概述
  • 性能特点
  • 技术参数

1、概述

失重秤也称为失重式喂料机,是一种间断给料连续出料的称重设备,由于失量控制是在料斗中进行,可达到较高的控制精度,同时结构又易于密封,故在粉料控制时与用传统的螺旋秤来相比称重精度是提高了一大截。

1。 Overview

Weighing scale, also known as weightless feeder, is a kind of weighing equipment with intermittent feeding and continuous discharging. Because the weightlessness control is carried out in hopper, it can achieve higher control accuracy, and the structure is easy to seal, so the weighing accuracy in powder control is greatly improved compared with the traditional spiral scale.


2、工作原理 Working Principle


自动计量系统

自动计量系统


如图所示,工作过程为:在失重秤仪表(或者触摸屏)上设定需要的称重重量(如50kg/h),设定称重料斗内补料下限和上限重量(如称重料斗内低于30kg开始补料,重量达到150kg时停止补料)。

启动失重秤,螺旋加料器开始旋转排料,此时失重秤仪表会根据称重料斗内重量减少反馈的速率,同时结合变频调速器反馈螺旋加料器的频率,实时的进行PID运算,然后控制变频调速器的频率,从而稳定的使螺旋加料机能够定量排出50kg/h量的物料。

当称重料斗内的物料重量小于设定的30kg时,则称重控制器锁定当前的出料流量,同时自动打开快速进料阀,迅速的过渡料斗内的物料加入称重料斗内,当称重料斗内的重量达到设定的150kg时,关闭快速进料阀,补料完成,同时称重控制器解除锁定,重新进行PID运算,稳定的使螺旋加料机能够定量排出50kg/h量的物料。

3、 产品技术特点

3.1、失重式喂料机为用户提供了单反馈控制喂料技术, 消除了PLC信号采集滞后、运行速度慢、抗干扰性能差等问题,因此喂料精度和稳定性更高;

3。2、根据物料特性选择不同螺杆和喂料方式,精度可达±0。2%,较其他方

式的动态流量秤精度是大大的提高;

3.3、秤台材质为不锈钢,罩壳将传感器半封闭起来,减少物料进入称台影

响称重的准确。与物料接触部分全部采用不锈钢制作;

4、产品应用

产品广泛应用于化工、工程塑料、电缆、食品、医药、建材等领域。特别是一些微量喂料的行业,有着很好的效果;

5、技术参数

幸运时时彩As shown in the figure, the working process is as follows: setting the required weighing weight (such as 50kg/h) on the weightlessness scale instrument (or touch screen), setting the lower and upper limit weights of feeding in the weighing hopper (such as starting feeding below 30kg in the weighing hopper, stopping feeding when the weight reaches 150kg).

Start the weightless scale and the screw feeder starts to rotate the layout. At this time, the weightless scale instrument will reduce the feedback rate according to the weight in the weighing hopper, and at the same time, with the frequency feedback of the screw feeder by the frequency converter governor, real-time PID operation will be carried out, and then the frequency of the frequency converter governor will be controlled, so that the screw feeder can be stabilized. Material discharged 50 kg/h.

When the weight of the material in the weighing hopper is less than the set 30 kg, the weighing controller locks the current discharge flow and automatically opens the fast feeding valve。 The material in the rapid transitional hopper is added to the weighing hopper。 When the weight in the weighing hopper reaches the set 150 kg, the fast feeding valve is closed and the feeding is completed。 The weighing controller unlocks and carries on the PID calculation again, so that the screw feeder can discharge 50 kg/h quantitatively。

3. Technical characteristics of products

3.1. Weightlessness feeder provides single feedback control feeding technology for users, eliminating the lag of PLC signal acquisition, slow running speed and poor anti-interference performance, so feeding accuracy and stability are higher.

3。2。 Choosing different screw and feeding methods according to material characteristics, the accuracy can reach (+0。2%), which is better than others。

幸运时时彩The accuracy of the dynamic flow scale is greatly improved.

3。3。 The material of weighing platform is stainless steel。 The sensor is semi-enclosed by the cover so as to reduce the material entering the weighing table。

幸运时时彩Accurate weighing。 The contact parts with materials are all made of stainless steel。

4. Product Application

Products are widely used in chemical industry, engineering plastics, cables, food, medicine, building materials and other fields. Especially in some micro-feeding industries, it has a good effect.

5。 Technical parameters


型号

Model

喂料量

Feeding capacity

物料

materiel

斜料斗容积

Inclined hopper volume

对称料斗容积

Symmetrical hopper volume

螺杆类型

Screw type

ZH-LW1-T19

5-100kg/h

粒料、玻纤

Granular Material and Glass Fiber

60L/80L/120L

60L/80L/120L

单螺杆

Single screw

ZH-LW1-T28

5-200kg/h

粒料、玻纤

Granular Material and Glass Fiber


60L/80L/120L

60L/80L/120L

ZH-LW2-T19

5-100kg/h

粒料、玻纤

Granular Material and Glass Fiber


60L/80L/120L

60L/80L/120L

双螺杆

Twin screw

ZH-LW2-T28

5-200kg/h

粒料、玻纤

Granular Material and Glass Fiber


60L/80L/120L

60L/80L/120L

6、双螺杆和单螺杆的区别 

6。1、单螺杆用于流动性好、不粘连的物料;

6.2、双螺杆是整体铸造的、具有自清洁功能的,通过双螺杆将物料推送出来,螺杆上方球形斗配水平和垂直搅拌,避免物料架桥,一般双螺杆用于流动性不好、水分大、容易粘连的物料。

6. The difference between twin screw and single screw

6.1. Single screw is used for materials with good fluidity and non-adhesion.

6。2。 The twin screw is cast as a whole and has self-cleaning function。 The material is pushed out through the twin screw。 The spherical bucket above the screw mixes horizontally and vertically to avoid material bridging。 Generally, the twin screw is used for materials with poor fluidity, high moisture content and easy adhesion。




自动计量系统

自动计量系统


自动计量系统



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