CN111763527A - Integrated control system for road building modified asphalt production equipment and operation method thereof - Google Patents

Abstract

An integrated control system for road building modified asphalt production equipment and an operation method thereof mainly comprise production equipment and a control system body arranged on the production equipment, wherein the production equipment mainly comprises a matrix asphalt feeding unit, an SBS feeding unit, an aromatic oil feeding unit, a batching tank and a discharging unit, the control system body mainly comprises a matrix asphalt feeding control module, an SBS feeding control module, an aromatic oil feeding control module and a discharging control module which are respectively arranged on the matrix asphalt feeding unit, the SBS feeding unit, the aromatic oil feeding unit and the discharging unit, and the matrix asphalt feeding control module, the SBS feeding control module, the aromatic oil feeding control module and the discharging control module are respectively in data connection with a PLC control module and perform data interaction; the automatic weighing device has the characteristics of automatic and dynamic weighing of materials, rapidness, accuracy, recording and storing of the use amount and the cumulant of various materials, no need of manual intervention in the multi-tank batching production process and the like.

Description

Integrated control system for road building modified asphalt production equipment and operation method thereof

Technical Field

The invention relates to the field of road building modified asphalt production equipment, in particular to an integrated control system for the road building modified asphalt production equipment and an operation method thereof.

Background

The main raw material for building asphalt road is modified asphalt, which is produced by using base asphalt, SBS and aromatic oil according to a certain mixing ratio through production equipment. It is particularly important to be able to maintain this ratio accurately during the production of modified asphalt. The method is very important for improving the road building quality and the construction efficiency. In order to improve road construction quality and improve production efficiency of modified asphalt, people are constantly demanding improvements in asphalt production equipment. The automatic control device for producing the modified asphalt is urgently needed, and the proportion of the matrix asphalt, the SBS and the aromatic oil can be accurately controlled.

Most of the equipment in the market at present controls the proportion of the raw materials such as the base asphalt, the SBS, the aromatic oil and the like manually by operators, so that the requirements on the operators are high, and high attention needs to be paid constantly in the production process. The proportioning amount and the stirring quality of the raw materials are not controlled accurately by operators, and the quality of the produced modified asphalt has some differences from the required quality. At present, an integrated control system which is arranged on road building modified asphalt production equipment and can meet the requirement is not reported.

Disclosure of Invention

The technical problem to be solved by the invention is to provide an integrated control system for road building modified asphalt production equipment and an operation method thereof, aiming at the defects of the prior art, the integrated control system can timely control the feeding of the matrix asphalt, the SBS and the aromatic oil according to the set proportion, has the advantages of accurate feeding, high production efficiency, simple operation of operators and high automation degree, and well solves the problems of inaccurate and untimely feeding and excessive dependence on the skill proficiency of the operators in the production.

The invention aims to provide an integrated control system for road building modified asphalt production equipment, which mainly comprises production equipment and a control system body arranged on the production equipment, wherein the production equipment mainly comprises a matrix asphalt feeding unit, an SBS feeding unit, an aromatic oil feeding unit, a proportioning tank and a discharging unit, the control system body mainly comprises a matrix asphalt feeding control module, an SBS feeding control module, an aromatic oil feeding control module and a discharging control module which are respectively arranged on the matrix asphalt feeding unit, the SBS feeding unit, the aromatic oil feeding unit and the discharging unit, and the matrix asphalt feeding control module, the SBS feeding control module, the aromatic oil feeding control module and the discharging control module are respectively in data connection with a PLC control module and perform data interaction; the matrix asphalt feeding control module is mainly responsible for conveying matrix asphalt to a batching tank for production and automatically metering the feeding amount of the matrix asphalt in real time; the aromatic oil feeding control module is mainly responsible for conveying aromatic oil to the dosing tank for production and automatically metering the aromatic oil feeding amount in real time, and is mainly responsible for conveying aromatic oil to the dosing tank for production and automatically metering the aromatic oil feeding amount in real time; the SBS feeding control module is mainly responsible for conveying SBS to the batching tank for production and automatically metering SBS feeding amount in real time; the PLC control assembly is in data connection with the operation panel and performs data control on the matrix asphalt feeding control module, the SBS feeding control module, the aromatic oil feeding control module and the discharging control module through the operation panel, and comprises a CPU module, an AI module and an AQ module.

Furthermore, the matrix asphalt feeding control module comprises a matrix asphalt pump, a first feeding valve and a second feeding valve which are arranged on the matrix asphalt pump, and a first mixing tank and a second mixing tank which are respectively connected with the discharging ends of the first feeding valve and the second feeding valve, wherein the matrix asphalt pump is provided with a speed regulation controller and a design circuit for regulating the feeding speed of the matrix asphalt, the first feeding valve and the second feeding valve are respectively and correspondingly provided with a detection element for detecting the open valve state of the first feeding valve and the second feeding valve, the first mixing tank and the second mixing tank are respectively provided with a first weighing unit and a second weighing unit for detecting the feeding amount of the matrix asphalt in the corresponding mixing tanks in real time, and the first mixing tank and the second mixing tank are respectively provided with a stirring motor for stirring the materials in the mixing tanks; the first feeding valve or the second feeding valve can be selectively opened according to production requirements in the production process so that the materials enter the first batching tank or the second batching tank.

Furthermore, the SBS feeding control module mainly comprises an SBS metering screw, a third weighing unit for weighing SBS materials, an SBS conveying screw and a positive and negative operation switch arranged on the SBS conveying screw, wherein the SBS metering screw is provided with a speed regulation controller for regulating the SBS feeding speed and a design circuit, and the positive and negative operation switch can switch and control the SBS materials to be conveyed to the first batching tank or the second batching tank according to production requirements; the digital quantity input and output IO signal of the SBS feeding control module is in data connection with the CPU module, the analog quantity input AI of the SBS feeding control module is in data connection with the AQ module of the PLC control module, and the analog quantity output AQ of the SBS feeding control module is in data connection with the AI module of the PLC control module so as to exchange signal data.

Furthermore, the aromatic oil feeding control module mainly comprises an aromatic oil pump, a first aromatic oil feeding valve and a second aromatic oil feeding valve, wherein detection elements for detecting the opening and closing states of the valves are respectively arranged on the first aromatic oil feeding valve and the second aromatic oil feeding valve, and the aromatic oil feeding control module is used for weighing materials by selecting a first weighing unit or a second weighing unit according to the condition that a batching tank into which the matrix asphalt enters is a first batching tank or a second batching tank; and the digital quantity input/output IO signal of the aromatic hydrocarbon feeding control module is connected with the input/output end of a CPU module in the PIC control module to control and feed back the switching signal.

Further, ejection of compact control module group is mainly including setting up first bleeder valve and second bleeder valve, mixed delivery pump, colloid mill on first batching jar and second batching jar respectively, gestating jar and second and gestating jar with the first of being connected of the discharge end of colloid mill, correspond respectively on first bleeder valve and the second bleeder valve and be provided with the detecting element that is used for detecting valve on-off state, be provided with the speed governing control ware and the design circuit that are used for adjusting ejection of compact speed on the mixed delivery pump, be provided with first gestating jar feed valve and second respectively on the connecting tube between colloid mill and first gestating jar and the second gestating jar, and correspond respectively on first gestating jar feed valve and the second gestating jar feed valve and be provided with the detecting element that is used for detecting valve on-off state, the IO signal line of ejection of compact control module respectively with the input of CPU module in the CPU control module, And the output terminal is connected, and the analog input AI and the analog output AQ of the output terminal are connected with the AQ module and the AI module in the CPU control component for signal data exchange.

Further, the speed regulation controller and the design circuit mainly comprise a motor, a speed regulation controller for controlling the running speed of the motor, a start-stop switch, a mode change-over switch, a potentiometer speed setting speed regulation module and an external speed setting speed regulation module, wherein the potentiometer speed setting speed regulation module and the external speed setting speed regulation module are in data connection with the speed regulation controller, and the speed regulation controller realizes a manual or automatic speed regulation mode through the mode change-over switch, the potentiometer speed setting speed regulation module and the external speed setting speed regulation module.

An operation method of an integrated control system for road building modified asphalt production equipment mainly comprises material component weighing calculation processing and discharging control module program processing in the production process, wherein a first mixing tank and a second mixing tank can be independently opened and put into use in the production process, and can also be alternately and automatically put into production after being simultaneously put into use; when two batching jars are opened simultaneously and are thrown in, the material composition weighing calculation processing mainly includes the following steps:

starting the advance of entering the base asphalt, and recording as G_{Pitch advance}When the amount of the entering base asphalt reaches the advance of the base asphalt, the current weight of SBS in the SBS hopper is recorded as G_{Initial value adopted by SBS}Starting to enter SBS, and simultaneously entering base asphalt until the entering amount of base asphalt reaches G_{Asphalt formulation set point}When the asphalt is added, the entering of the SBS resin is stopped, and the entering amount of the SBS resin reaches G_{SBS formulation set point}When the driver stops entering the SBS; the current weight of SBS at this time is recorded as G_{Current weight of SBS}The current weight of the base asphalt at this time is denoted as G_{Current weight of mixed material 1}Then, the feeding amount of SBS and the feeding amount of the base asphalt in the batching tank can be calculated according to the following formula, and the unit is Kg;

G_{SBS feed rate}＝G_{Initial value adopted by SBS}-G_{Current weight of SBS}(1)

G_{Amount of matrix asphalt fed}＝G_{Current weight of mixed materialQuantity 1}-G_{SBS feed rate}(2)

When the base asphalt and SBS reach the set amount, the addition of aromatic oil to the batching tank is started. The aromatic oil is added in a set amount as a percentage of the total amount of base asphalt. The entering amount of the aromatic oil reaches G_{Aromatic oil formulation set point}When the material is added, stopping adding the material mixing tank; the mixture in the blending tank is marked as G_{Current weight of mixed material 2}Then, the feeding amount of the aromatic oil in the material preparation tank at the moment can be calculated according to the following formula, and the unit is Kg;

G_{amount of aromatic oil fed}＝G_{Current weight of mixed material 2}-G_{Current weight of mixed material 1}(3)

The weight of the aromatic oil contained in the batching tank can also be calculated according to the following formula:

G_{amount of aromatic oil fed}＝G_{Current weight of mixed material 2}-G_{Amount of matrix asphalt fed}-G_{SBS feed rate}(4)

So far, after all the materials in the mixing tank are added, the matrix asphalt, SBS and aromatic oil of the components contained in the mixed materials can be calculated by the 4 formulas, and the production flow and the weighing calculation processing method of the other mixing tank are the same.

The invention has the beneficial technical effects that: the invention solves the problem of accurate real-time feeding amount of each material weighed during the production of modified asphalt, combines the matrix asphalt feeding unit, the SBS feeding unit, the aromatic oil feeding unit, the three weighing units, the human-computer interface HMI and other software and hardware, sets the process formula proportion in the human-computer interface HMI, can measure each feeding amount in real time, can rapidly and accurately control the feeding amounts of the matrix asphalt, the SBS and the aromatic oil, and integrates the process formula setting, the raw material feeding amount control, the conveying, the storage and the statistics of important data.

2. The problem of low production efficiency can be solved by combining program software with a plurality of dosing tanks and a plurality of inoculation tanks. Because the production automation is realized, the operation is simple, and the requirement on the skill of an operator is greatly reduced.

Drawings

FIG. 1 is a block diagram of the integrated control system electrical connections of the present invention;

FIG. 2 is a diagram of the operation monitoring of the human-machine interface of the integrated control system of the present invention;

FIG. 3 is a flowchart of the integrated control system routine of the present invention;

FIG. 4 is a first schematic circuit diagram of the integrated control system PLC of the present invention;

FIG. 5 is a second schematic circuit diagram of the integrated control system PLC of the present invention;

FIG. 6 is a third schematic circuit diagram of the integrated control system PLC of the present invention;

FIG. 7 is a fourth schematic circuit diagram of the integrated control system PLC of the present invention;

FIG. 8 is a connection block diagram of the timing controller and the design circuit according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention is further described with reference to the accompanying drawings and examples.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inside", "outside", "lateral", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-8, the integrated control system for road construction modified asphalt production equipment mainly comprises production equipment and a control system body arranged on the production equipment, wherein the production equipment mainly comprises a matrix asphalt feeding unit, an SBS feeding unit, an aromatic oil feeding unit, a dosing tank and a discharging unit, the control system body mainly comprises a matrix asphalt feeding control module 1, an SBS feeding control module 2, an aromatic oil feeding control module 3 and a discharging control module 4 which are respectively arranged on the matrix asphalt feeding unit, the SBS feeding unit, the aromatic oil feeding unit and the discharging unit, and the matrix asphalt feeding control module 1, the SBS feeding control module 2, the aromatic oil feeding control module 3 and the discharging control module 4 are respectively in data connection with a PLC control module 5 and perform data interaction; the matrix asphalt feeding control module 1 is mainly responsible for conveying matrix asphalt to a batching tank for production and automatically metering the feeding amount of the matrix asphalt in real time; the aromatic oil feeding control module 3 is mainly responsible for conveying aromatic oil to the dosing tank for production and automatically metering the aromatic oil feeding amount in real time, and is mainly responsible for conveying aromatic oil to the dosing tank for production and automatically metering the aromatic oil feeding amount in real time; the SBS feeding control module 2 is mainly responsible for conveying SBS to the batching tank for production and automatically metering SBS feeding amount in real time; PLC control assembly 5 and 6 data connection of operating panel and carry out data control to matrix pitch feeding control module 1, SBS feeding control module 2, arene oil feeding control module 3 and ejection of compact control module 4 through operating panel 6, PLC control assembly 5 includes CPU module 51, AI module 52 and AQ module 53.

The operating switch of the operating panel 6 adopts a common button switch, a knob switch or a button switch, the switch contact of the operating panel is connected with the input end of a CPU module of the PLC control assembly through a circuit, the corresponding button is pressed to control the starting of a motor, a pump or a valve during manual operation, and the starting, stopping and pausing of a system can be controlled during automatic operation; the system state indicator lamp is connected with the output end of the CPU module of the PLC control assembly through a circuit and feeds back the running state of each valve, motor or pump; the temperature, liquid level and current display in the operation panel is used for monitoring and detecting the temperature of asphalt and heat conducting oil in the production process and the liquid level condition of the batching tank; and the touch screen in the operation panel is connected with the Ethernet port of the CPU module of the PLC control assembly through the Ethernet port of the touch screen to carry out man-machine conversation and data exchange communication.

The matrix asphalt feeding control module 1 comprises a matrix asphalt pump 11, a first feeding valve 12 and a second feeding valve 13 which are arranged on the matrix asphalt pump 11, and a first batching tank 7 and a second batching tank 8 which are respectively connected with the discharge ends of a first feeding valve 12 and a second feeding valve 13, the matrix asphalt pump 11 is provided with a speed-regulating controller for regulating the feeding speed of the matrix asphalt and a design circuit 9, the first feeding valve 12 and the second feeding valve 13 are respectively provided with a detecting element 10 for detecting the open state of the first feeding valve 13 and the second feeding valve 13, the first batching tank 7 and the second batching tank 8 are respectively provided with a first weighing unit 14 and a second weighing unit 15 which are used for detecting the feeding amount of the matrix asphalt in the corresponding batching tanks in real time, the first mixing tank 7 and the second mixing tank 8 are respectively provided with a stirring motor 16 for stirring materials in the tanks; the first feeding valve or the second feeding valve can be selectively opened according to production requirements in the production process so that the materials enter the first batching tank or the second batching tank.

The SBS feeding control module 2 mainly comprises an SBS metering screw 21, a third weighing unit 22 for weighing SBS materials, an SBS conveying screw 23 and a positive and negative operation switch 24 arranged on the SBS conveying screw 23, wherein the SBS metering screw 21 is provided with a speed regulation controller for regulating the SBS feeding speed and a design circuit 9, and the positive and negative operation switch 24 can switch and control the SBS materials to be conveyed to the first batching tank 7 or the second batching tank 8 according to production requirements; the digital quantity input and output IO signal of the SBS feeding control module is in data connection with the CPU module, the analog quantity input AI of the SBS feeding control module is in data connection with the AQ module of the PLC control module, and the analog quantity output AQ of the SBS feeding control module is in data connection with the AI module of the PLC control module so as to exchange signal data.

The aromatic oil feeding control module 3 mainly comprises an aromatic oil pump 31, a first aromatic oil feeding valve 32 and a second aromatic oil feeding valve 33, wherein a detection element 10 for detecting the valve opening and closing state is arranged on each of the first aromatic oil feeding valve 32 and the second aromatic oil feeding valve 33, and the aromatic oil feeding control module 3 selects to use a first weighing unit 14 or a second weighing unit 15 for a first batching tank 7 or a second batching tank 8 according to the batching tank into which the matrix asphalt enters; and a digital quantity input/output (IO) signal of the aromatic hydrocarbon feeding control module 3 is connected with an input/output end of a Central Processing Unit (CPU) module in the PIC control module to control and feed back a switching signal.

The discharging control module 4 group mainly comprises a first discharging valve 41 and a second discharging valve 42 which are respectively arranged on a first mixing tank 7 and a second mixing tank 8, a mixing and conveying pump 43, a colloid mill 44, a first inoculation tank 45 and a second inoculation tank 46 which are connected with the discharging end of the colloid mill 44, detection elements 10 for detecting the valve opening and closing state are respectively and correspondingly arranged on the first discharging valve 41 and the second discharging valve 42, a speed regulating controller and a design circuit 9 for regulating the discharging speed are arranged on the mixing and conveying pump 43, a first inoculation tank feeding valve 47 and a second inoculation tank feeding valve 48 are respectively arranged on a connecting pipeline between the colloid mill 44 and the first inoculation tank 45 and the second inoculation tank 26, detection elements 10 for detecting the valve opening and closing state are respectively and correspondingly arranged on the first inoculation tank feeding valve 47 and the second inoculation tank feeding valve 48, IO signal lines of the discharging door group 4 are respectively connected with input control elements of a CPU module in the CPU control module, And the output terminal is connected, and the analog input AI and the analog output AQ of the output terminal are connected with the AQ module and the AI module in the CPU control component for signal data exchange.

The speed regulation controller and design circuit 9 mainly comprises a motor 91, a speed regulation controller 92 for controlling the running speed of the motor, a start-stop switch 93, a mode switch 94, a potentiometer speed setting speed regulation module 95 and an external speed setting speed regulation module 96 which are in data connection with the speed regulation controller 92, wherein the speed regulation controller realizes a manual or automatic speed regulation mode through the mode switch, the potentiometer speed setting speed regulation module and the external speed setting speed regulation module.

An operation method of an integrated control system for road building modified asphalt production equipment mainly comprises material component weighing calculation processing and discharging control module program processing in the production process, wherein a first mixing tank and a second mixing tank can be independently opened and put into use in the production process, and can also be alternately and automatically put into production after being simultaneously put into use; when two batching jars are opened simultaneously and are thrown in, the material composition weighing calculation processing mainly includes the following steps:

starting the advance of entering the base asphalt, and recording as G_{Pitch advance}When the amount of the entering base asphalt reaches the advance of the base asphalt, the current weight of SBS in the SBS hopper is recorded as G_{Initial value adopted by SBS}Starting to enter SBS, and simultaneously entering base asphalt until the entering amount of base asphalt reaches G_{Asphalt formulation set point}When it is stopped to enterThe entering amount of the base asphalt and SBS reaches G_{SBS formulation set point}When the driver stops entering the SBS; the current weight of SBS at this time is recorded as G_{Current weight of SBS}The current weight of the base asphalt at this time is denoted as G_{Current weight of mixed material 1}Then, the feeding amount of SBS and the feeding amount of the base asphalt in the batching tank can be calculated according to the following formula, and the unit is Kg;

G_{SBS feed rate}＝G_{Initial value adopted by SBS}-G_{Current weight of SBS}(1)；

G_{Amount of matrix asphalt fed}＝G_{Current weight of mixed material 1}-G_{SBS feed rate}(2)；

When the base asphalt and SBS reach the set amount, the addition of aromatic oil to the batching tank is started. The aromatic oil is added in a set amount as a percentage of the total amount of base asphalt. The entering amount of the aromatic oil reaches G_{Aromatic oil formulation set point}When the material is added, stopping adding the material mixing tank; the mixture in the blending tank is marked as G_{Current weight of mixed material 2}Then, the feeding amount of the aromatic oil in the material preparation tank at the moment can be calculated according to the following formula, and the unit is Kg;

G_{amount of aromatic oil fed}＝G_{Current weight of mixed material 2}-G_{Current weight of mixed material 1}(3)；

The weight of the aromatic oil contained in the batching tank can also be calculated according to the following formula:

G_{amount of aromatic oil fed}＝G_{Current weight of mixed material 2}-G_{Amount of matrix asphalt fed}-G_{SBS feed rate}(4)；

So far, after all the materials in the mixing tank are added, the matrix asphalt, SBS and aromatic oil of the components contained in the mixed materials can be calculated by the 4 formulas, and the production flow and the weighing calculation processing method of the other mixing tank are the same.

In addition, modified asphalt is produced in the first batching tank and the second batching tank, in order to convey discharged materials to the development tank and improve the capacity of the equipment in unit time, the invention comprises a relay baton alternate discharging program of a discharging unit, a memory relay baton completion mark of which batching tank is set when the batching tank is produced, a modified asphalt setting memory relay baton completion mark I is produced in the first batching tank, and a modified asphalt setting memory relay baton completion mark II is produced in the second batching tank; when the materials are discharged, the memory relay baton completion mark of which material mixing tank is given first, the materials are discharged first, and the memory relay baton completion mark and the weighing display zero clearing of the material mixing tank are cleared when the materials are discharged from the modified asphalt of the material mixing tank at present. This is the batching tank can be fed and produced again, so that the process is repeated.

Processing the recovery problem of the process data due to fault power failure: the production process of the modified asphalt is fully automatic, if the power failure or the pause in the production process occurs due to a fault, in order to ensure the accuracy of material proportioning and weighing and connect the previous production process, the invention comprises a special recovery flow step program to solve the problem, and the recovery flow step program method is to store all the relevant weighed material data, current data of the step and running condition data of the motor electromagnetic valve in which step when the power failure occurs suddenly and then recover the data. It is sufficient to start by pressing reset. The production process can be connected with the previous production flow step, the production can be started before the material proportioning weighing can be recovered, and the difficult problems that time is consumed and materials are wasted due to the fact that all materials in the tank are required to be removed and reproduction is carried out after sudden failure and power failure occur in the prior art are solved.

During production operation, an operator only needs to set the total weight values of asphalt, SBS and aromatic oil formulas and the yield values of single-time matrix asphalt and SBS in the formula setting in a human-computer interface; then setting the matrix asphalt to account for the single matrix asphalt and the SBS set yield, setting the SBS to account for the single matrix asphalt and the SBS set yield, and automatically calculating the set amount of the asphalt formula and the set amount of the SBS formula by the system; the aromatic oil accounts for the total amount of the matrix asphalt, and the set amount of the aromatic oil formula can be automatically calculated; the advance of the base asphalt is set, so that the time when the SBS starts to feed materials and put into production can be controlled.

Pressing a start button of an operation panel, firstly adding the matrix asphalt, measuring the real-time feeding amount of the matrix asphalt by the corresponding online weighing unit at the moment, putting the SBS when the preset matrix asphalt advance is reached, measuring the real-time feeding amount of the SBS by the corresponding online weighing unit of the SBS at the moment, feeding the matrix asphalt and the SBS at the same time, stopping feeding the matrix asphalt when the feeding amount of the matrix asphalt is equal to the set formula amount, and stopping feeding the SBS when the feeding amount of the SBS is equal to the set formula amount. And starting the aromatic oil feeding when the feeding of the matrix asphalt and the SBS is stopped, wherein the real-time amount of the aromatic oil feeding is measured by the corresponding online weighing unit of the aromatic oil at the moment, and the aromatic oil feeding amount is equal to the formula set amount to stop the aromatic oil feeding. The contents of the base asphalt, SBS and aromatic oil in the mixture modified asphalt and the total weight of the mixture modified asphalt in the tank can be known.

The specific embodiments described herein are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (7)

1. The utility model provides an integrated control system for building road modified asphalt production facility, mainly includes production facility and sets up the control system body on this production facility, production facility mainly includes matrix pitch feed unit, SBS feed unit, aromatic oil feed unit, batching jar and ejection of compact unit, its characterized in that: the control system body mainly comprises a matrix asphalt feeding control module, an SBS feeding control module, an aromatic oil feeding control module and an discharging control module which are respectively arranged on a matrix asphalt feeding unit, an SBS feeding unit, an aromatic oil feeding unit and a discharging unit, wherein the matrix asphalt feeding control module, the SBS feeding control module, the aromatic oil feeding control module and the discharging control module are respectively in data connection with a PLC control assembly and perform data interaction; the matrix asphalt feeding control module is mainly responsible for conveying matrix asphalt to a batching tank for production and automatically metering the feeding amount of the matrix asphalt in real time; the aromatic oil feeding control module is mainly responsible for conveying aromatic oil to the dosing tank for production and automatically metering the aromatic oil feeding amount in real time, and is mainly responsible for conveying aromatic oil to the dosing tank for production and automatically metering the aromatic oil feeding amount in real time; the SBS feeding control module is mainly responsible for conveying SBS to the batching tank for production and automatically metering SBS feeding amount in real time; the PLC control assembly is in data connection with the operation panel and performs data control on the matrix asphalt feeding control module, the SBS feeding control module, the aromatic oil feeding control module and the discharging control module through the operation panel, and comprises a CPU module, an AI module and an AQ module.

2. The integrated control system for a road construction modified asphalt production facility according to claim 1, wherein: the matrix asphalt feeding control module comprises a matrix asphalt pump, a first feeding valve and a second feeding valve which are arranged on the matrix asphalt pump, and a first proportioning tank and a second proportioning tank which are respectively connected with the discharging ends of the first feeding valve and the second feeding valve, wherein a speed regulation controller and a design circuit for regulating the feeding of the matrix asphalt are arranged on the matrix asphalt pump; the first feeding valve or the second feeding valve can be selectively opened according to production requirements in the production process so that the materials enter the first batching tank or the second batching tank.

3. The integrated control system for a road construction modified asphalt production facility according to claim 2, wherein: the SBS feeding control module mainly comprises an SBS metering screw, a third weighing unit for weighing SBS materials, an SBS conveying screw and a positive and negative operation switch arranged on the SBS conveying screw, wherein the SBS metering screw is provided with a speed regulating controller for regulating the SBS feeding speed and a design circuit, and the positive and negative operation switch can switch and control the SBS materials to be conveyed to the first batching tank or the second batching tank according to production requirements; the digital quantity input and output IO signal of the SBS feeding control module is in data connection with the CPU module, the analog quantity input AI of the SBS feeding control module is in data connection with the AQ module of the PLC control module, and the analog quantity output AQ of the SBS feeding control module is in data connection with the AI module of the PLC control module so as to exchange signal data.

4. The integrated control system for a road construction modified asphalt production facility according to claim 3, wherein: the aromatic oil feeding control module mainly comprises an aromatic oil pump, a first aromatic oil feeding valve and a second aromatic oil feeding valve, wherein detection elements for detecting the opening and closing states of valves are respectively arranged on the first aromatic oil feeding valve and the second aromatic oil feeding valve; and the digital quantity input/output IO signal of the aromatic hydrocarbon feeding control module is connected with the input/output end of a CPU module in the PIC control module to control and feed back the switching signal.

5. The integrated control system for a road construction modified asphalt production facility according to any one of claims 2 to 4, characterized in that: the discharging control module mainly comprises a first discharging valve and a second discharging valve which are respectively arranged on a first mixing tank and a second mixing tank, a mixing delivery pump, a colloid mill, a first inoculation tank and a second inoculation tank which are connected with the discharging end of the colloid mill, detection elements for detecting the valve opening and closing state are respectively and correspondingly arranged on the first discharging valve and the second discharging valve, a speed regulation controller and a design circuit for adjusting the discharging speed are arranged on the mixing delivery pump, a first inoculation tank feeding valve and a second inoculation tank feeding valve are respectively arranged on a connecting pipeline between the colloid mill and the first inoculation tank and the second inoculation tank, detection elements for detecting the valve opening and closing state are respectively and correspondingly arranged on the first inoculation tank feeding valve and the second inoculation tank feeding valve, and IO signal lines of the discharging control module are respectively connected with the input of a CPU module in the CPU control module, And the output terminal is connected, and the analog input AI and the analog output AQ of the output terminal are connected with the AQ module and the AI module in the CPU control component for signal data exchange.

6. The integrated control system for a road construction modified asphalt production facility according to claim 5, wherein: the speed regulation controller and the design circuit mainly comprise a motor, a speed regulation controller for controlling the running speed of the motor, a start-stop switch, a mode change-over switch, a potentiometer speed setting speed regulation module and an external speed setting speed regulation module, wherein the potentiometer speed setting speed regulation module and the external speed setting speed regulation module are in data connection with the speed regulation controller, and the speed regulation controller realizes a manual or automatic speed regulation mode through the mode change-over switch, the potentiometer speed setting speed regulation module and the external speed setting speed regulation module.

7. The method of operating an integrated control system for a road construction modified asphalt production facility according to claim 6, wherein: the operation method mainly comprises the steps of weighing and calculating material components in the production process and the program processing of a discharging control module, wherein the first mixing tank and the second mixing tank can be independently opened for use in the production process, and can also be alternately and automatically put into production after being simultaneously put into use; when two batching jars are opened simultaneously and are thrown in, the material composition weighing calculation processing mainly includes the following steps:

starting the advance of entering the base asphalt, and recording as G_{Pitch advance}When the amount of the entering base asphalt reaches the advance of the base asphalt, the current weight of SBS in the SBS hopper is recorded as G_{Initial value adopted by SBS}Starting to enter SBS, and simultaneously entering base asphalt until the entering amount of base asphalt reaches G_{Asphalt formulation set point}When the asphalt is added, the entering of the SBS resin is stopped, and the entering amount of the SBS resin reaches G_{SBS formulation set point}When the driver stops entering the SBS; the current weight of SBS at this time is recorded as G_{Current weight of SBS}The current weight of the base asphalt at this time is denoted as G_{Current weight of mixed material 1}Then, the amount in the dispensing tank at that time can be calculated according to the following formulaThe unit of the feeding amount of SBS and the feeding amount of the matrix asphalt is Kg;

G_{SBS feed rate}= G_{Initial value adopted by SBS}- G_{Current weight of SBS}(1)

G_{Amount of matrix asphalt fed}= G_{Current weight of mixed material 1}- G_{SBS feed rate}(2)

When the base asphalt and the SBS reach the set amount, adding the aromatic oil into the batching tank, wherein the aromatic oil is added according to the set amount of the percentage of the total amount of the base asphalt, and the aromatic oil entering amount reaches G_{Aromatic oil formulation set point}When the material is added, stopping adding the material mixing tank; the mixture in the blending tank is marked as G_{Current weight of mixed material 2}Then, the feeding amount of the aromatic oil in the material preparation tank at the moment can be calculated according to the following formula, and the unit is Kg;

G_{amount of aromatic oil fed}= G_{Current weight of mixed material 2}- G_{Current weight of mixed material 1}(3)

The weight of the aromatic oil contained in the batching tank can also be calculated according to the following formula:

G_{amount of aromatic oil fed}= G_{Current weight of mixed material 2}- G_{Amount of matrix asphalt fed}- G_{SBS feed rate}(4)

So far, after all the materials in the mixing tank are added, the matrix asphalt, SBS and aromatic oil of the components contained in the mixed materials can be calculated by the 4 formulas, and the production flow and the weighing calculation processing method of the other mixing tank are the same.

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