CN102862831B - Automatic dense-phase filling control system and automatic dense-phase filling control method - Google Patents
Automatic dense-phase filling control system and automatic dense-phase filling control method Download PDFInfo
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Abstract
The invention discloses an automatic control system of a particle material dense-phase filling device. The system comprises a PLC (programmable logic controller), a transformer, an actuator, a switch button and a touch screen, the touch screen is in communication with the PLC through a communication interface and comprises a data input module, a data storage module, a data processing and computing module, a selection module and a monitoring module, and the PLC comprises a data shift unit, a data storage unit, a control mode determination unit, a data computing unit, a data signal transmission unit, a stepping motor drive unit, a data comparing unit and a data switch unit. The whole control system is simple to operate, clear in interface, high in intelligent degree and accurate in control, and when the system is applied to dense-phase filling, filling efficiency can be improved, manual intervention during filling is reduced, real-time correction can be performed during filling, and dense-phase catalyst filling is guaranteed to reach optimum effect.
Description
Technical field:
The present invention relates to a kind of autonomous cruise speed system and method, relate in particular to dense phase loading autonomous cruise speed system and the method for petroleum chemical industry consersion unit catalyst granules.
Background technology:
The filling work of the filling of granule materials, especially catalyst granules, more and more comes into one's own in its relevant field.The Catalyst packing technology generally adopting both at home and abroad is at present a kind of dense phase loading technology, can bring into play to greatest extent the performance of catalyst in reactor.Existing granule materials dense phase loading equipment generally all comprises barrel, distributing device and its actuating device, when work, dense phase loading device is arranged on to charge cask (reactor or feed bin) top, distributing device pivots under actuating device drives, material enters distributing device through barrel, by distributing device, material is evenly spread out.Its object is all granule materials to be shed in cylinder type feed bin or reactor to some donuts to pile up layer by layer, reaches as far as possible the object of even filling.
When existing dense phase loading device work; all with reference to filling on-site actual situations; determine an initial filling rotating speed according to experience; after prefill a period of time; filling effect is checked in shutdown, then adjusts rotating speed and works on, and shuts down view result after a period of time again; adjustment rotating speed works on, and so repeatedly carries out.So both affected filling efficiency, also impact filling planeness and loading density.
Summary of the invention:
The object of this invention is to provide a kind of autonomous cruise speed system and method, for granule materials dense phase loading device, realize automation, the intellectuality of filling process, reach better filling effect.
The technical scheme that the present invention takes is: a kind of dense phase loading autonomous cruise speed system, comprises Programmable Logic Controller PLC, voltage transformer, actuator, shift knob, and by the touch-screen of communication interface and plc communication, it is characterized in that:
Described touch-screen comprises:
-data input module, for input, amendment Catalyst packing correlation parameter, comprises loading height, charge cask diameter, distributing device diameter, loading density, filling speed etc.
-data memory module, for storing input, output data;
-data processing computing module, for processing, calculate input, output parameter data; Comprise the coding computing of incoming signal; The decoding computing of output signal;
-select module, for selecting mode and the touch screen operation interface of motor;
-monitor module, for showing current system running state, comprise operation scheme, running state, charge level height
Described PLC comprises:
-data shift unit, for being displaced in real time PLC inner high speed pulse count value, data memory module data value, control routine parameter value the data module that PLC programming distributes respectively according to operating order;
-data storage cell, the data of coming for storing shift unit transmission;
-mode determining unit, mode during for definite motor operation, comprises manual control mode and stored program control system;
-data calculating unit, needs in real time rotating speed, charge level height and loads excess time for calculating motor;
-data-signal output unit, for exporting the pulse of determining mode;
-stepping motor driver element, for impulse singla being converted to corresponding angular transposition, the size of pulse signal frequency determines the rotating speed of motor;
-data comparing unit, for comparing the prefill height value of charge level height and setting, in the time that charge level height reaches setting value, motor stops;
-data switch unit, for on/off.
A method of utilizing control system control dense phase loading described in claim 1, is characterized in that comprising the steps:
-system initialization, the setting of filling parameter: set charge cask diameter, loading height, loading density, filling speed etc.;
-according to the filling parameter of input, PLC calculates filling needs time and motor initial speed;
-PLC calculates the variation of charge level height, in the time that changing value reaches setting value, redefines rotating speed and sends instruction, changes motor speed;
-touch-screen shows filling required time, excess time and current rotating speed;
-in filling process, can revise in real time the current rotating speed of motor;
-in the time that bed height value reaches the prefill height of setting, motor is out of service, and filling completes.
The present invention has following beneficial effect: whole control system is simple to operate, interface is clear, intelligent degree is high, control accurately, it is applied in dense phase loading process and can improves filling efficiency, reduce the manual intervention of filling process, and can in filling process, revise in real time, guarantee that catalyst dense phase loading reaches optimum efficiency.
Brief description of the drawings
Accompanying drawing is the structure principle chart of dense phase loading autonomous cruise speed system of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.The drawings and specific embodiments do not limit the scope of protection of present invention.
Actuator, voltage transformer etc. that the touch-screen that dense phase loading autonomous cruise speed system of the present invention mainly comprises PLC microprocessor, communicate with PLC and drive motor rotate.Touch-screen has been mainly used in the input of filling correlation parameter, comprise outlet material height, reactor diameter, cloth tray diameter, prefill height, loading density, filling speed and coefficient of correction etc., and data are sent to PLC, show current filling state simultaneously, comprise operating mode, loading height, filling speed etc.; PLC is that treater gathers various data, according to designer's program of row establishment in vain, completes various calculating and constantly sends order-driven motor and turn round with different rotating speeds.
Its specific works flow process is: start enters the main interface of acquiescence, and mode is program control, resets if select, and removes plc data memory module; Enter parameter interface is set, the correlation parameter of filling is set, comprise outlet material height, reactor diameter, cloth tray diameter, prefill height, loading density, filling speed and coefficient of correction etc., i.e. data input module in accompanying drawing; Return to main interface, now on main interface, will demonstrate the rotating speed of whole filling process required time, excess time and distributing device.Click " startup " button, device brings into operation, and PLC calculates the variation of charge level height according to filling speed, loading density, charge cask diameter, bed height etc., determines the required new rotating speed of distributing device and sends instruction, and drive motor changes rotating speed; Excess time and distributing device rotating speed can change and be presented at accompanying drawing and monitor in module along with the variation of time; Click " stopping " button, operation that can halt device; When equipment suspends, the related data of current filling will, by plc data memory module, be clicked " startup " button again, and equipment continues operation on this basis.
If selection manual control mode, input " current rotating speed V " in display module, given cloth tray rotating speed.Click " startup " button, equipment travels at the uniform speed with setting speed, in operational process, can change constantly rotating speed, completes the M/C of filling process.
Claims (2)
1. a dense phase loading autonomous cruise speed system, comprises Programmable Logic Controller PLC, voltage transformer, actuator, shift knob, and by the touch-screen of communication interface and plc communication, it is characterized in that:
Described touch-screen comprises:
-data input module, for input, amendment Catalyst packing correlation parameter, comprises loading height, reactor diameter, cloth tray diameter, loading density and filling speed;
-data memory module, for storing input, output data;
-data processing computing module, for processing, calculate input, output parameter data; Comprise the coding computing of incoming signal; The decoding computing of output signal;
-select module, for selecting mode and the touch screen operation interface of motor;
-monitor module, for showing current system running state, comprise operation scheme, running state, charge level height;
Described PLC comprises:
-data shift unit, for being displaced in real time PLC inner high speed pulse count value, data memory module data value, control routine parameter value the data module that PLC programming distributes respectively according to operating order;
-data storage cell, the data of coming for storing shift unit transmission;
-mode determining unit, mode during for definite motor operation, comprises manual control mode and stored program control system;
-data calculating unit, needs in real time rotating speed, charge level height and loads excess time for calculating motor;
-data-signal output unit, for exporting the pulse of determining mode;
-stepping motor driver element, for impulse singla being converted to corresponding angular transposition, the size of pulse signal frequency determines the rotating speed of motor;
-data comparing unit, for comparing the prefill height value of charge level height and setting, in the time that charge level height reaches setting value, motor stops;
-data switch unit, for on/off.
2. a method of utilizing control system control dense phase loading described in claim 1, is characterized in that comprising the steps:
-system initialization, the setting of filling parameter: set loading height, reactor diameter, cloth tray diameter, loading density and filling speed;
-according to the filling parameter of input, PLC calculates filling needs time and motor initial speed;
-PLC calculates the variation of charge level height, in the time that changing value reaches setting value, redefines rotating speed and sends instruction, changes motor speed;
-touch-screen shows filling required time, excess time and current rotating speed;
-in filling process, according to filling effect, the current rotating speed of motor is revised in real time;
-in the time that bed height value reaches the prefill height of setting, motor is out of service, and filling completes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210363826.5A CN102862831B (en) | 2012-09-27 | 2012-09-27 | Automatic dense-phase filling control system and automatic dense-phase filling control method |
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| CN201210363826.5A CN102862831B (en) | 2012-09-27 | 2012-09-27 | Automatic dense-phase filling control system and automatic dense-phase filling control method |
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| CN102862831B true CN102862831B (en) | 2014-10-22 |
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| CN103676983A (en) * | 2013-12-27 | 2014-03-26 | 江苏天鹏石化特种工程有限公司 | Dense-phase loading flow automatically-adjusting device |
| CN104029392B (en) * | 2014-05-21 | 2018-01-19 | 杭州电子科技大学 | A kind of steady particle feed mechanism of biological 3D printer based on STM8 |
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