[China Instrument Network Instrument R&D] On November 6, 2017, the Guangxi Metrology Institute held an acceptance meeting for scientific research projects, and invited an inspection team composed of five experts, including Li Qingzhong, a researcher of the Chinese Academy of Metrology, Guangxi University and Professor Huang Wei, to Guangxi Metrology Institute. The two research projects of “Development of 500kN Fully-Automatic Hydraulic Superimposed Force Standard Machine (Pull and Pressure)†and “High-precision High-Volume Measurement Standard Force Source Device†undertook the conclusion of acceptance. After the final discussion and review, the expert group unanimously agreed that the two projects passed the final acceptance check.
The force standard machine is a device that generates standard force values ​​and is mainly used to determine or verify force value sensors, load cells, standard dynamometers, and other instruments.
The stacking force standard machine is the standard value of the force level meter installed in series with the force measuring instrument and the standard dynamometer, and the load is simultaneously applied by the force source so that the standard dynamometer reproduces the degree of each level of the force level, and the measured value is measured at the same time. The force level indication corresponding to the force meter is detected so as to achieve the dynamometer's rating, verification or calibration. To make the superposition force standard machine work accurately and reliably, it is necessary to solve the problem of stability of the control system, otherwise there will be cases where the value shows fluctuations and cannot be read. In order to meet the sensor calibration requirements, long-term stability, high accuracy, and meet the requirements of the JJG734-2001 force standard machine, developed a high-precision hydraulic control system composed of servo control, hydraulic source and software control, accuracy Up to 0.03 500kN fully automatic hydraulic superimposed force standard machine.
Both of these scientific research projects are mechanical measurement research projects established by the General Administration of Quality Supervision, Inspection and Quarantine, and the results of the project research will play a positive role in the development of a strong value inspection project for Guangxi Metrology Institute. At the same time, it has laid a good foundation for the development of more standard and more accurate force standard machines and effectively improved the service capabilities of the Guangxi Institute of Metrology.
(Original title: Our two mechanical measurement scientific research projects successfully passed the final acceptance test)
Most kinds of plastics could be processed by plastic pyrolysis machines.
the main plastics will be PP PE with high oil output
PVC or PET is not suitable for pyrolysis machines
there will be Cl generated from its process
when met with water, there will be HCL,
it is harmful to reactor and all the whole plastic pyrolysis system.
the main process is that by heating the reactor directly, plastics will be pyrolysised into oil gas;
condensers or cooling pipes will cool the gas down into liquid oil with the help of recycling water;
then the rest gas which could not be cooled down into liquid oil will be recycled into reactor heating system; after oil gas coming out completely, stop heating the reactor, and cool down reactor below 70 degrees; then can open the door and discharge carbon black automatically...
there are models with capacities from 5tons to 20tons per batch
LN-2200-6000 capacity of 5-6ton
LN-2200-6600 capacity of 7-8ton
LN-2200-8000 capacity of 9-10ton
LN-2600-6600 capacity of 10-12ton
LN-2600-8000 capacity of 12-14ton
LN-2800-6000 capacity of 10-12ton
LN-2800-6600 capacity of 12-14ton
LN-2800-8000 capacity of 15-20ton
if cut into smaller pieces, it could process more.
the whole process includes feeding plastics into pyrolysis reactor;
then heating the reactor and oil gas coming out for some time;
cool down the reactor; at last open the door and discharge the carbon blacks...
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