Double tube spiral quantitative feeder

Double tube spiral quantitative feeder：
The double tube spiral weighing feeder is a dynamic weighing instrument suitable for conveying powdery, granular
or small materials. It has a two-layer structure. The upper structure is mainly responsible for flow stabilization and
transportation, and the lower layer is mainly responsible for dynamic metering. The flow stabilization effect is good
and saves space.

Product introduction:
The double pipe spiral weighing feeder is also a dynamic weighing instrument suitable for conveying powdery, granular
or small materials. Different from the single pipe spiral scale, the double pipe spiral scale has a two-layer structure, the
upper structure is mainly responsible for flow stabilization and transportation, and the lower layer is mainly responsible
for dynamic measurement. It is widely used in cement, feed, chemical industry, food, medicine, papermaking, environmental
protection and other industries.

Product features:
Core weighing technology 
Yprk double tube spiral scale has unique CS high-end weighing technology, which greatly improves the measurement
accuracy. The calibration accuracy is ≤± 0.5%, and the actual application accuracy is ≤± 1%

Precision manufacturing process
Precise ultra precision equipment manufacturing technology, long-term use without deformation, sealing structure,
effectively prevent dust from blowing out and prolong service life

Leading steady current technology
Unique steady flow structure, uniform material transportation without arching, and synchronous speed regulation of
the upper and lower layers of the feeding metering screw.

High precision weighing structure
The imported pull load cell acts directly, the signal output is more stable, the weight signal is more real and the
measurement is more accurate.

working principle:

The material is transported from the feed port to the metering cutter connected below through the screw conveyor, and
the fully weighed weight of the metering screw is sent to the controller with a voltage signal proportional to the weighing
load through three tension sensors installed on the metering cutter, Together with the preset cutter speed data (in case
of double tube metering, the metering cutter operates at a constant speed to advance the material, that is, the speed signa
is the design value of the metering cutter).

At this time, the instantaneous flow and cumulative weight value are obtained from the weight and speed signals through
calculation. The spiral quantitative feeding scale control system compares the actual flow signal with the set flow signal,
and outputs the control signal to the frequency converter through PID adjustment to dynamically adjust the speed of the
feeding cutter, so as to realize quantitative feeding.