CN2349811Y - Real-time controller for expanding device - Google Patents

Abstract

The utility model relates to a real-time controller for expanding device. A control circuit is composed of a real-time control unit B3, a data acquisition unit B5, an analog output unit B4, a transistor output unit B6, higher level working stations B1, B2, etc. The utility model can control the host machine current, the material flow, the refining temperature, squeezing interval, the addition level of additives, etc. of an expander, can make the parameters achieve set values, and makes inflate sections lie in optimum regime. The utility model simultaneously can realize the functions of automatically start-up, sut down, fault alarm, production management, etc.

Description

The expander real-time control apparatus

The utility model is applicable to the real-time control apparatus of in the material production process that expands expander being controlled automatically, belongs to technical field of electricity.

The at present domestic system that also the material production process that expands is not controlled automatically, most of dependence import.And external control system all to adopt single-chip microcomputer be subordinate's work station, and the single-chip microcomputer anti-interference is relatively poor, safeguards relatively difficulty.

The purpose of this utility model is that a kind of can carrying out of design gathered in real time automatically, handles, control expander equipment parameters, adopting modular PLC (Programmable Logic Controller) is subordinate's work station, with computer PC is the expander real-time control apparatus of higher level's operation interface, this installs strong interference immunity, safeguard simple and convenient, the reliability height.

Below in conjunction with accompanying drawing the technical scheme that the utility model solves is further described:

Fig. 1 is an electrical schematic diagram of the present utility model

Fig. 2 is an equipment flowsheet of the present utility model

Fig. 3 is a workflow diagram of the present utility model

The main former device model of the utility model or parameter mark are as follows:

Programmable Logic Controller (PLC) B3 is FX2-64MR, and analog input module B5 is FX2-4AD, and analog quantity is defeated Going out module B4 is FX2-2DA, and transistor output module B6 is FX2-8YET, and thermometric instrument V1 and V2 are TIS-MK1, temperature sensor T1 and T2 are PT100, and electromagnetic relay K1 to K16 is HH52P/220VAC, and button S1 extremely S13 is and spring AL series, and computer B1 is IPC-610, and communication converter B2 is FX2-232ADP, and steam is electronic Control valve M7, M9 are AVF-3000. M1 is feeding motor, and M2 is the quality-adjusting device motor, and M3 is the expander main frame , M4 is the beating crusher motor, M5 is hydraulic pump, and M6 material level signal, M7, M9 are the steam electric control valve, M8, M10 is Solenoid valve for steam, M11 is for adding solenoid.

The technical solution of the utility model is that employing modular PLC (Programmable Logic Controller) is higher level's operation interface for subordinate's work station computer PC, to main frame electric current I a, refining temperature T1, T2, steam valve M7, the open degree top clearance Sp of M9, feed control VLT, feeding motor rotating speed Vw, hydraulic controller PZ etc. are by analog quantity input module B5, analog output module B4, transistor output module B6 carries out scanning sample repeatedly, the various data that collect is pooled to Programmable Logic Controller (PLC) B3 compares with each data setting value of importing in the computer PC, and constantly adjust automatically, make sampled data reach in the range of set value till.Each equipment motor speed like this, feeding capacity, vapor volume, temperature all can be carried out under best design parameter automatically, guarantees the work quality and the efficient of expander.Each point safety stroke on this equipment, level of filler material to be processed, in a single day break down in equipment motor heat protection contact etc., and this device working interface will show error message, and send sound and light alarm, can shut down start in case of necessity automatically.

The control circuit of the utility model real-time control apparatus has calculating (PC) B1, communication module B2, Programmable Logic Controller (PLC) basic unit module B3 (hereinafter to be referred as module B3), analog quantity input module B5 (hereinafter to be referred as module B5), analog output module B4 (hereinafter to be referred as module B4), transistor output module B6 (hereinafter to be referred as module B6), thermometric instrument V1, the V2 of band temperature sensor T1, T2 and valve position MF1, the MF2 of steam motor regulated valve M7, M9 form.

Computer (PC) B1 as between higher level's operation interface and the module B2 and module B2 with as all there being data/address bus to be connected between the module B3 of subordinate's work station, make and carry out between computer (PC) B1 and the module B3 that data transmit and reception.

All there is data/address bus to be connected to each other between module B3, B4, B5 and the B6, and carries out various data and signal transmission.

Temperature sensor T1, T2 are connected through the CH4 passage of thermometric instrument V1, V2 and module B5, also are connected with Y34, the Y35 terminal of module B6 respectively; Valve position MF1, the MF2 of steam motor regulated valve M7, M9 is connected with the CH4 passage of module B5, also be connected with terminal Y36, the Y37 of module B6 respectively, the valve position feedback information of the temperature of T1, T2 and MF1, MF2 all can be transferred to module B5, B6 timely and accurately like this, and further send B3, B1 to.

The input terminal 00～05 of module B3 links to each other in proper order with the button S1～S6 of control appliance motor start and stop respectively, wherein input terminal 00 connects the button S1 of control feeding motor M1, input terminal 01 connects the button S2 of control quality-adjusting device motor M 2, input terminal 02 connects the button S3 of control expander motor M 3, input terminal 03 connects the button S4 of control beating crusher motor M 4, input terminal 04,05 connects the high speed of control hydraulic pump motor M5 and the button S5 of low or first gear, S6.

The input terminal 06,07 of module B3 meets button S7, the S8 of control two-way solenoid valve for steam M8, M10 switch respectively; Input terminal 10 meets the button S9 that control adds solenoid M11 switch; Input terminal 11～14 meets knob S11, the S12 that control two-way steam motor regulated valve M7, M9 open, close respectively; Assist into terminal 15,16 and meet the knob S13 that the control top clearance increases, reduces: input terminal 17～24 meets electrothermal relay contact F1～F6 of each motor M 1～M6; The material level signal P1 of input terminal 25 reception processing feed bin M6, input terminal 26 meets the duty contact P2 of expander follow-up equipment, input terminal 27 connect control device manually, the knob S10 of automatic mode; Steam input quantity situation like this, the volume read-out situation, top clearance, each equipment motor heat relay contact situation, every data such as duty of bin-level situation expander follow-up equipment and information all can in time feed back to module B3, and feed back to computer B1.

Operation principle of the present utility model and program are: the control switch S0 that closes, PLC, PC get electric work.S10 switches to automated location with knob, and operation PC keyboard enters working interface, the input setting value: parameters such as minimum feeding rotating speed, refining temperature, minimum valve position, main frame electric current and work top clearance.Send operating instruction then, the control system follow procedure starts the feed control VLT of beating crusher M4, hydraulic pump M5, expander main frame M3, quality-adjusting device M2 and control feeding motor M1 rotating speed.Each equipment all enters normal operating condition like this.

Expander main frame electric current I a, extruding with the adjusting program of crack Sp and feeding rotating speed Vw is:

The electric current I a of expander main frame M3, top clearance Sp and feeding rotating speed Vw import CH1, CH2, the CH3 passage of B5 module respectively and sample, when main frame current sampling data during greater than the main frame current setting value, PLC will reduce the analog quantity output valve of B4 module CH2 passage gradually, to reduce the rotating speed Vw of feeding motor M1, to reduce feeding capacity.The analog quantity output valve of CH1 passage that increases module B4 simultaneously is to increase top clearance Sp.When the electric current I a of main frame M3 sampled value during less than the main frame current setting value, PLC will increase the analog quantity output valve of B4 module CH2 passage gradually, increase the rotating speed Vw of feeding motor M1 by feed control VLT, to increase feeding capacity VLT, reduce the analog quantity output valve of CH1 passage simultaneously, reducing top clearance Sp, all be stabilized within the scope that the PC working interface sets value until the sampled value that the electric current I a of main frame M3 sampled value and top clearance Sp sampling 1 value are inhaled the feeding rotating speed Vw of feeding motor M1.

The control method of vapor volume is: PLC controls motor M 1 rotating speed for feed control VLT by the CH1 passage output analog quantity (0-10V) of B4 module, when the M1 rotating speed reaches minimum feeding speed setting value, program is opened solenoid valve for steam M8 and M10 automatically, open simultaneously steam electric control valve M7, M9 gradually to minimum valve position setting value, so material fully mixes slaking with steam in equipment.

The adjustment process of refining temperature is:

Refining temperature is sent into thermometric instrument V1, V2 through temperature sensor T1, T2, and further by module B6 scanning, the CH4 passage of input module B5 is sampled again.This temperature also constantly is transfused in module B3 and the computer PC.When the refining temperature of sampling greater than computer PC in refining temperature when setting value, module B3 connects the K12 controlled relay, control steam motor regulated valve M7 reduces open degree, when the refining temperature T1 of sampling less than computer PC in refining temperature when setting value, module B3 connects the K13 relay, control steam motor regulated valve M7 increases open degree, is stabilized within the scope of PC working interface refining temperature setting value until the sampling refining temperature.

It is subordinate's work station that the utility model expander real-time control system device adopts modular PLC (Programmable Logic Controller), with computer PC is higher level's operation interface, by module B4, B5, B6 samples and compares by PLC input computer, the data that sample progressively are adjusted to import the interior setting value of computer PC in advance, this control device can the main control system current error≤± 1A, control refining temperature error≤± 1 ℃, control top clearance error≤± 1mm, control feeding error≤± 1%, expander can be worked in the best condition, and this device strong interference immunity, safeguard simple and conveniently, the reliability height can also be realized Auto Power On, shutdown, functions such as fault alarm.

Claims (2)

1, a kind of expander real-time control apparatus, it is characterized in that: control circuit is by computer (PC) B1, communication module B2, Programmable Logic Controller (PLC) basic unit module 133 (hereinafter to be referred as module B3), analog quantity input module B5 (hereinafter to be referred as module B5), analog output module B4 (hereinafter to be referred as module B4), transistor output module B6 (hereinafter to be referred as piece B6), thermometric instrument V1, the V2 of band temperature sensor T1, T2 and valve position feedback MF1, the MF2 of steam motor regulated valve M7, M9 form; Computer B1 is as higher level's operation interface, by module B2 with as all there being data/address bus to be connected between the module B3 of subordinate's work station, carrying out data transmits and receives: module B3, B4, all there is data/address bus to be connected to each other between B5 and the B6, and carry out various data and signal and transmit: temperature sensor T1, T2 is through thermometric instrument V1, V2 links to each other with the CH4 passage of module B5, also respectively with the terminal Y34 of module B6, Y35 is connected, the electronic joint valve of steam M7, the valve position feedback MF1 of M9, MF2 is connected with the CH4 passage of module B5, also respectively with the terminal Y36 of module B6, Y37 is connected, T1 like this, the temperature of T2 and M7, the valve position feedback MF1 of M9, information such as MF2 all can send module B5 to timely and accurately, B6, and the input terminal 00～05 that further sends module B3 and B1: module B3 to links to each other in proper order with the button S1～S6 of control appliance motor start and stop respectively, wherein input terminal 00 connects the button S1 of control feeding motor M1, input terminal 01 connects the button S2 of control quality-adjusting device motor M 2, input terminal 02 connects the button S3 of control expander motor M 3, input terminal 03 connects the button S4 of control beating crusher motor M 4, input terminal 04,05 connects the high speed of control hydraulic pump motor M5 and the button S5 of low or first gear, S6: the ruuning situation of each equipment motor can be timely and effectively and module B3 communications and liaison mutually like this, and by module B3 and computer B1 UNICOM; The input terminal 06,07 of module B3 meets button S7, the S8 of control two-way solenoid valve for steam M8, M10 switch respectively; Input terminal 10 meets the button S9 that control adds solenoid M11 switch; Input terminal 11～14 meets knob S11, the S12 that control two-way steam motor regulated valve M7, M9 open, close respectively; Input terminal 15,16 meets the knob S13 that the control top clearance increases, reduces; Input terminal 17～24 meets electrothermal relay contact F1～F6 of each motor M 1～M6; The material level signal P1 of input terminal 25 reception processing feed bin M6, input terminal 26 meets the duty contact P2 of expander follow-up equipment, input terminal 27 connect control device manually, the knob S10 of automatic mode; Steam input quantity situation like this, the volume read-out situation, top clearance, each equipment motor heat relay contact situation, storehouse material material level situation, every data such as the duty of expander follow-up equipment and information all in time feedback transmission in module B3 and in time and each other module and computer B1 communicate with one another.

2, control device according to claim 1, it is characterized in that: Programmable Logic Controller (PLC) B3 is FX2-64MR, analog quantity input module B5 is FX2-4AD, analog output module B4 is FX2-2DA, transistor output module B6 is FX2-8YET, thermometric instrument V1 and V2 are TIS-MK1, temperature sensor T1 and T2 are PT100, electromagnetic relay K1 to K16 is HH52P/220VAC, button S1 to S13 is and spring AL series, and computer B1 is IPC-610, and communication converter B2 is FX2-232ADP, steam motor regulated valve M7, the model of M9 is AVF-3000.

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