Proportionate dosing post pelleting liquid application (PPLA) system

A dynamic and liquid technology, applied in the direction of liquid injection devices, injection devices, mixer accessories, etc., can solve the problems of low reading pulse frequency, inaccurate measurement, pulse signal distortion, etc.

Inactive Publication Date: 2006-02-08
章春根
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AI Technical Summary

Problems solved by technology

However, the frequency of reading pulses of most control systems is not high, and the accuracy range of flowmeters is generally ±0.25% to ±0.5%.
At the same time, the calibration of the flowmeter is usually to install a bypass behind the flowmeter to detect the flow rate. However, due to the inconsistency between the resistance of the actual spraying pipeline and the resistance of the bypass used for detection, the calibration takes time.
At the same time, there are other factors for inaccurate measurement: the gear pump itself has large flow pulsation and pressure pulsation; when using flow measurement, if the gas in the pipeline is not completely separated, the air will be measured as "liquid"; The wear and corrosion of pump moving parts will reduce the stability of the system; the control part of the metering system will be affected by its own noise and environmental clutter, which will cause distortion of the pulse signal

Method used

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  • Proportionate dosing post pelleting liquid application (PPLA) system
  • Proportionate dosing post pelleting liquid application (PPLA) system

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Embodiment approach

[0038] Energy conversion mechanism: After the potential energy of the small particle material 20 under the action of gravity passes through the energy absorbing chute 4, the displacement generated by the impulse is transmitted by the long axis 3, and is converted into an elastic energy conversion device - a horizontal square balance frame. The potential energy produces a linearly scaled horizontal displacement, and the equivalent value of the horizontal displacement is transmitted to the flow detection mechanism and can be measured by the precision displacement sensor LVDT.

[0039] Flow detection mechanism: the displacement output by the energy conversion mechanism is transmitted to the precision displacement sensor (LVDT) 10 fixed by the displacement sensor holder 9 by the equivalent value of the displacement transmission bracket 11 and measured in real time. The measured displacement value is passed through A in the form of current. The / D conversion board is composed of con...

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Abstract

The invention relates to a dynamic proportioning liquid after-spraying system, which uses continuous flow material fine flow controller to detect flow quantity of mass diffuse matter continuously and controls thickness of feed layer precisely after computer gets the value of instantaneous delivery. Meanwhile the invention uses microscale liquid processing unit to spray microdosage on target object. PPLA system adopts ARM build-in core technology to process both centralized telecontrol and independent control. The invention integrates fluid technology, mechanical technology, electrical control, computer soft-hardware control and so on.

Description

technical field [0001] The present invention relates to an automatic system that can dynamically add a small amount of liquid to the material by spraying at room temperature—Proportionate Dosing Post Pelleting Liquid Application (PPLA) System, The system is characterized by its fully automatic dynamic working mode at room temperature, tiny spraying dosage (addition amount is less than 1 / 10,000) and accuracy (±1.5%). [0002] The PPLA system is controlled by ARM embedded core technology, which can be controlled remotely or individually. The liquid automatic post-addition technology involved in the system is a new comprehensive technical field integrating fluid technology, mechanical technology, chemical technology, electrical control, pneumatic control, hydraulic control and computer software and hardware control. technical background [0003] The post-addition technology of liquid is a brand-new technical field. There are only a few developed countries in Europe and the Uni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B7/04B01F15/04G05D11/02
Inventor 章春根
Owner 章春根
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