CN109403185B - Control method and control device for asphalt station anti-overflow and asphalt station - Google Patents
Control method and control device for asphalt station anti-overflow and asphalt station Download PDFInfo
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- CN109403185B CN109403185B CN201811506297.3A CN201811506297A CN109403185B CN 109403185 B CN109403185 B CN 109403185B CN 201811506297 A CN201811506297 A CN 201811506297A CN 109403185 B CN109403185 B CN 109403185B
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- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
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Abstract
The invention provides a control method and a control device for preventing material overflow of an asphalt station and the asphalt station, and relates to the field of asphalt mixture processing. The control method for the anti-overflow of the asphalt station comprises the following steps: calculating the initial loading frequency of each cold bin according to the aggregate demand data of each hot bin and the loading capacity data of each cold bin; judging whether the actual feeding frequency of each cold bin needs to be corrected or not; if the actual feeding frequency of the corresponding cold bin needs to be corrected, adjusting the feeding frequency of the corresponding cold bin, and controlling the corresponding cold bin to operate according to the adjusted feeding frequency; and if the actual feeding frequency of the corresponding cold material bin does not need to be corrected, controlling the corresponding cold material bin to operate according to the corresponding initial feeding frequency. The method can correct the actual feeding frequency and prevent the occurrence of material overflow or material waiting.
Description
Technical Field
The invention relates to the field of asphalt mixture processing, in particular to a control method and a control device for preventing material overflow of an asphalt station and the asphalt station.
Background
The asphalt station is a complete set of equipment mainly used for producing asphalt concrete in batches, can produce asphalt mixture, modified asphalt mixture, color asphalt mixture and the like, and is necessary equipment for building expressways, grade highways, municipal roads, airports and ports.
At present, in the production process of a common asphalt station in the market, the matching degree of the feeding speed of a cold material bin and the actual requirement is not high. Too slow feeding speed may cause waiting for materials, affecting production efficiency, too fast feeding speed may cause overflowing, wasting aggregate and energy sources containing oil, gas, etc. If the supplied materials is irregular, the condition of channeling the materials can appear in the production process, the feeding speed of the cold storage bin is not high in matching degree with the actual requirements, and the condition of overflowing or waiting for the materials is easily caused to occur.
Disclosure of Invention
One of the objectives of the present invention is to provide a control method for asphalt station flash prevention, which can correct the actual loading frequency and prevent flash or waiting.
Another object of the present invention is to provide a control device for preventing flash at an asphalt plant and an asphalt plant, which can correct the actual loading frequency and prevent flash or waiting.
It is still another object of the present invention to provide an asphalt plant that can correct the actual loading frequency to prevent the occurrence of flash or the like.
In order to achieve the above object, the present invention provides a technical solution:
the embodiment of the invention provides a control method for preventing flash of an asphalt station, which comprises the following steps:
s10: acquiring aggregate demand data of each hot bin of an asphalt station and loading capacity data of each cold bin, wherein the aggregate demand data of each hot bin represents the amount of aggregate needing to be put into each hot bin in unit time, and the loading capacity data of each cold bin represents the maximum available amount of aggregate in unit time;
s20: calculating the initial loading frequency of each cold bin according to the aggregate demand data of each hot bin and the loading capacity data of each cold bin;
s30: judging whether the actual feeding frequency of each cold bin needs to be corrected or not;
s40: if the actual feeding frequency corresponding to the cold bin needs to be corrected, adjusting the feeding frequency corresponding to the cold bin, and controlling the cold bin to operate according to the adjusted feeding frequency;
s50: and if the actual feeding frequency corresponding to the cold material bin does not need to be corrected, controlling the corresponding cold material bin to operate according to the corresponding initial feeding frequency.
Further, step S10 includes: and calculating aggregate demand data of each hot material bin of the asphalt station according to the production formula data of the asphalt station and a preset production period.
Further, step S30 includes: if the actual production period is equal to the preset production period, judging that the actual feeding frequency does not need to be corrected; and if the actual production period is not equal to the preset production period, judging that the actual feeding frequency needs to be corrected.
Further, step S40 includes: and adjusting the feeding frequency of the corresponding cold storage bin according to the production formula data and the actual production period.
Further, step S20 includes the steps of:
s21: determining a primary loading frequency of each cold bin according to the initial loading frequency of each cold bin, wherein the primary loading frequency is characterized by the loading frequency of each cold bin when the asphalt station is produced for the first time after being stopped;
s22: controlling each cold material bin to operate according to the primary feeding frequency;
s23: judging whether the aggregate temperature before entering each hot aggregate bin is greater than or equal to a preset aggregate temperature or not; judging whether the aggregate storage capacity in each hot aggregate bin is greater than or equal to a preset aggregate storage capacity or not;
s24: when the aggregate temperature is greater than or equal to the preset aggregate temperature and the aggregate storage amount in the hot aggregate bin is greater than or equal to the preset aggregate storage amount, controlling each cold aggregate bin to operate according to the initial feeding frequency;
s25: and when the aggregate temperature is lower than the preset aggregate temperature and/or the aggregate storage amount in the hot aggregate bin is lower than the preset aggregate storage amount, controlling each cold aggregate bin to operate according to the primary feeding frequency until the aggregate temperature is higher than or equal to the preset aggregate temperature and the aggregate storage amount in the hot aggregate bin is higher than or equal to the preset aggregate storage amount.
Further, step S21 includes: and determining 30% -40% of the initial loading frequency of each cold bin as the initial loading frequency corresponding to each cold bin.
Further, in step S20, the initial feeding frequency of each cold bin is calculated according to the following formula: f1 ═ A1/A2 XF,
wherein F1 represents the initial loading frequency of each cold bin, A1 represents aggregate demand data of each hot bin, A2 represents loading capacity data of each cold bin, and F represents the rated loading frequency of each cold bin, and the rated loading frequency of each cold bin is the loading frequency corresponding to the maximum available aggregate amount of each cold bin.
Further, in step S10, aggregate demand data for each hot-fill silo is calculated according to the following formula: a1 (P × N) 3600/T,
the aggregate demand data of each hot bin is represented by A1, the maximum capacity of a single production cycle is represented by P, the mix proportion of corresponding materials is represented by N, the preset production cycle is represented by T, and the preset production cycle represents the time for finishing one-time feeding.
The embodiment of the invention also provides a control device for preventing the flash of the asphalt station, which comprises: the system comprises a receiving module, a data processing module and a data processing module, wherein the receiving module is used for acquiring aggregate demand data of each hot bin of an asphalt station and loading capacity data of each cold bin, the aggregate demand data of each hot bin represents the amount of aggregate needing to be put into each hot bin in unit time, and the loading capacity data of each cold bin represents the maximum available amount of aggregate in unit time; the calculation module is used for calculating the initial loading frequency of each cold bin according to the aggregate demand data of each hot bin and the loading capacity data of each cold bin; the judging module is used for judging whether the actual feeding frequency of each cold material bin needs to be corrected or not; the control module is used for adjusting the feeding frequency corresponding to the cold storage bin and controlling the cold storage bin to operate according to the adjusted feeding frequency if the actual feeding frequency corresponding to the cold storage bin needs to be corrected; and the control module is also used for controlling the corresponding cold material bin to operate according to the corresponding initial feeding frequency if the actual feeding frequency corresponding to the cold material bin does not need to be corrected.
The embodiment of the invention also provides an asphalt station, which comprises: a memory; a controller; and the memory stores a computer program which is read and run by the controller to realize the method for controlling the asphalt station anti-overflow material.
Compared with the prior art, the control method and the control device for the asphalt station anti-overflow and the asphalt station provided by the invention have the beneficial effects that:
according to the control method and the control device for preventing the overflow of the asphalt station and the asphalt station, provided by the invention, the actual feeding frequency of the cold bins can be corrected according to the aggregate demand data of each hot bin and the feeding capacity data of each cold bin, and the situations of overflow caused by too high feeding speed and equal material caused by too low feeding speed are avoided without depending on a level meter.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a block diagram schematically illustrating a structure of an asphalt plant corresponding to a control method and a control device for asphalt plant flash prevention according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an asphalt plant according to an embodiment of the present invention;
FIG. 3 is a schematic block flow diagram of a control method for asphalt station flash prevention according to an embodiment of the present invention;
FIG. 4 is a block diagram illustrating a flow of substeps of step S20 of a control method for asphalt station flash prevention according to an embodiment of the present invention;
fig. 5 is a block diagram schematically illustrating a structure of a control device for preventing flash at an asphalt plant according to an embodiment of the present invention.
Icon: 1-a cold storage bin; 2-a conveyor belt; 3-drying the roller; 4-a temperature sensor; 5, a hoisting machine; 6-vibrating screen; 7-a hot material bin; 8-a level indicator; 10-asphalt plant; 11-a memory; 12-a controller; 100-a control device for asphalt station flash prevention; 101-a receiving module; 102-a calculation module; 103-a judgment module; 104-control module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "inner", "outer", and the like, refer to an orientation or positional relationship as shown in the drawings, or as would be conventionally found in use of the products of the present invention, or as would be conventionally understood by one skilled in the art, and are used merely for convenience in describing and simplifying the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "open," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Referring to fig. 1, fig. 1 is a block diagram illustrating a structure of an asphalt plant 10 corresponding to a control method and a control device for preventing an asphalt plant from overflowing according to an embodiment of the present invention. The control method for asphalt station flash prevention and the control device 100 for asphalt station flash prevention provided by the embodiment are applied to the asphalt station 10. The asphalt plant 10 is mainly used for mass production of asphalt materials such as asphalt mixtures, modified asphalt mixtures, color asphalt mixtures and the like, and is important engineering equipment capable of quickly obtaining the asphalt materials. The asphalt plant 10 includes a storage 11, a controller 12, and a control 100 for asphalt plant flash prevention. The control method and the control device for preventing the overflow of the asphalt station can correct the actual feeding frequency by the production period, the formula proportion and the feeding capacity of the storage bin, so that the overflow or material waiting condition is prevented.
The memory 11 and the controller 12 are electrically connected to each other directly or indirectly to enable data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The control device 100 for asphalt station flash prevention includes at least one software function module that can be stored in the memory 11 in the form of software or firmware (firmware) or solidified in an Operating System (OS) of a server. The controller 12 is used to execute executable modules stored in the memory 11, such as software functional modules and computer programs included in the control device 100 for asphalt station flash prevention.
The Memory 11 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like. The memory 11 is used for storing a program, and the controller 12 executes the program after receiving the execution instruction.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an asphalt plant 10 according to an embodiment of the present invention. A plurality of cold feed bins 1 are conveyed by the conveyor belt 2 to enter the drying roller 3 for heating, then the cold feed bins are discharged by the drying roller 3 and sent into the vibrating screen 6 by the lifting machine 5, and then the cold feed bins 1 enter the hot feed bin 7 corresponding to the cold feed bin 1 by the vibrating screen 6. Wherein, the corresponding material level meter 8 is arranged in the corresponding hot material bin 7, and the temperature sensor 4 is arranged at the outlet of the drying roller 3.
Referring to fig. 3, fig. 3 is a schematic flow chart of a control method for preventing an asphalt station from overflowing according to an embodiment of the present invention.
In step S10, aggregate demand data of each hot bin 7 and loading capacity data of each cold bin 1 of the asphalt plant 10 are acquired. The aggregate demand data of each hot aggregate bin 7 represents the amount of aggregate required to be put into each hot aggregate bin 7 in unit time, and the loading capacity data of each cold aggregate bin 1 represents the maximum available amount of aggregate of each cold aggregate bin 1 in unit time.
It should be noted that, before step S10, aggregate demand data of each hot bin 7 of the asphalt plant 10 needs to be calculated according to the production formula data of the asphalt plant 10 and the preset production period.
The preset production cycle data is preferably a standard production cycle, and the standard production cycle may be 35 seconds, 40 seconds, 45 seconds, 50 seconds, 1 minute, or the like. In addition, the cold silo 1 corresponding to each aggregate can be automatically selected through formula demand data.
In step S10, aggregate demand data for each hot-aggregate bin 7 is calculated according to the following formula: a1 (P × N) 3600/T,
wherein, A1 represents the aggregate demand data of each hot-aggregate bin 7, P represents the maximum capacity of a single production cycle, N represents the mix proportion of corresponding materials, T represents a preset production cycle, and the preset production cycle represents the time for completing one-time feeding.
Step S20: and calculating the initial loading frequency of each cold bin 1 according to the aggregate demand data of each hot bin 7 and the loading capacity data of each cold bin 1.
It should be noted that, in step S20, the initial feeding frequency of each cold storage bin 1 is calculated according to the following formula: f1 ═ A1/A2 XF,
wherein F1 represents the initial loading frequency of each cold bin 1, a1 represents aggregate demand data of each hot bin 7, a2 represents loading capacity data of each cold bin 1, F represents the rated loading frequency of each cold bin 1, and the rated loading frequency of each cold bin 1 is the loading frequency corresponding to the maximum available amount of aggregate of each cold bin 1.
It should be noted that, a single cold storage bin 1 can be controlled by a frequency converter alone, and the output frequency of the frequency converter corresponds to the output rotating speed of the motor, so as to control the feeding of the cold storage bin 1.
Further, referring to fig. 4, fig. 4 is a schematic block diagram illustrating a flow of a sub-step of step S20 of the control method for preventing the asphalt station from overflowing according to the embodiment of the present invention.
Step S20 includes the following sub-steps:
substep S21: the initial loading frequency of each cold bunker 1 is determined according to the initial loading frequency of each cold bunker 1, wherein the initial loading frequency is characterized by the loading frequency of each cold bunker 1 when the asphalt plant 10 is first produced after being shut down.
In the initial stage of production, the raw aggregate must be heated, and the heating equipment (not shown) requires the influence of other factors such as temperature response time. 30% -40% of the initial loading frequency of each cold store bin 1 is determined as the initial loading frequency for each cold store bin 1.
Substep S22: each cold burden bin 1 is controlled to operate at the primary loading frequency.
Substep S23: judging whether the aggregate temperature before entering each hot aggregate bin 7 is greater than or equal to a preset aggregate temperature or not; and whether the aggregate storage capacity in each hot aggregate bin 7 is greater than or equal to the preset aggregate storage capacity is judged.
In addition, at the beginning of production, the occurrence of flash or material waiting can be prevented by the substep S23.
Note that each hot material bin 7 is provided with a level indicator 8, and the level indicator 8 is used for detecting the aggregate storage amount of the aggregate in the hot material bin 7. The preferred level indicator 8 can be a rotary-resistance level indicator 8, and a signal of the aggregate storage amount in the hot bin 7 is output through a level indicator 8 transmitter.
Substep S24: and when the aggregate temperature is greater than or equal to the preset aggregate temperature and the aggregate storage amount in the hot aggregate bin 7 is greater than or equal to the preset aggregate storage amount, controlling each cold aggregate bin 1 to operate according to the initial feeding frequency.
Substep S25: and when the aggregate temperature is lower than the preset aggregate temperature and/or the aggregate storage amount in the hot aggregate bin 7 is lower than the preset aggregate storage amount, controlling each cold aggregate bin 1 to operate according to the primary feeding frequency until the aggregate temperature is higher than or equal to the preset aggregate temperature and the aggregate storage amount in the hot aggregate bin 7 is higher than or equal to the preset aggregate storage amount.
Step S30: it is determined whether the actual loading frequency of each cold store bin 1 needs to be corrected.
It should be noted that, if the actual production period is equal to the preset production period, it is determined that the actual feeding frequency does not need to be corrected;
and if the actual production period is not equal to the preset production period, judging that the actual feeding frequency needs to be corrected.
In the asphalt station 10, the aggregates are conveyed to the vibration equipment by the hoisting machine 5 after passing through the heating equipment from the corresponding cold storage bin 1, and then are conveyed to the corresponding hot storage bin 7 by the vibration equipment. The temperature sensor 4 is arranged before entering the hot-aggregate bin 7, and preferably, the temperature sensor 4 is arranged at the discharge of the heating device.
It should be noted that the actual feeding frequency is corrected by the actual production cycle, so that the occurrence of flash or waiting can be prevented.
Step S40: if the actual feeding frequency of the corresponding cold storage bin 1 needs to be corrected, the feeding frequency of the corresponding cold storage bin 1 is adjusted, and the corresponding cold storage bin 1 is controlled to operate according to the adjusted feeding frequency.
It should be noted that the feeding frequency of the corresponding cold storage bin 1 is adjusted according to the production formula data and the actual production period.
Step S50: and if the actual feeding frequency of the corresponding cold storage bin 1 does not need to be corrected, controlling the corresponding cold storage bin 1 to operate according to the corresponding initial feeding frequency.
Referring to fig. 5, fig. 5 is a schematic block diagram illustrating a structure of a control apparatus 100 for preventing asphalt station flash according to an embodiment of the present invention, where the control apparatus 100 for preventing asphalt station flash includes a receiving module 101, a calculating module 102, a determining module 103, and a control module 104.
The receiving module 101 is configured to obtain aggregate demand data of each hot bin 7 of the asphalt station 10 and loading capacity data of each cold bin 1, where the aggregate demand data of each hot bin 7 represents an amount of aggregate that needs to be put into each hot bin 7 in a unit time, and the loading capacity data of each cold bin 1 represents a maximum amount of available aggregate of each cold bin 1 in the unit time.
In this embodiment of the present invention, step S10 may be executed by the receiving module 101.
And the calculating module 102 is used for calculating the initial loading frequency of each cold bin 1 according to the aggregate demand data of each hot bin 7 and the loading capacity data of each cold bin 1.
In this embodiment of the present invention, step S20 may be executed by the computing module 102.
And the judging module 103 is used for judging whether the actual feeding frequency of each cold storage bin 1 needs to be repaired or not.
In the embodiment of the present invention, the step S30 and the sub-step S23 may be executed by the determining module 103.
In addition, the judging module 103 is further configured to judge whether the aggregate temperature before entering each hot aggregate bin 7 is greater than or equal to a preset aggregate temperature; and whether the aggregate storage capacity in each hot aggregate bin 7 is greater than or equal to the preset aggregate storage capacity is judged.
In the embodiment of the present invention, the sub-step S23 of the step S20 is executed by the determining module 103.
The control module 104 is configured to adjust the feeding frequency of the corresponding cold storage bin 1 if the actual feeding frequency of the corresponding cold storage bin 1 needs to be corrected, and control the corresponding cold storage bin 1 to operate according to the adjusted feeding frequency; and the method is also used for controlling the corresponding cold storage bin 1 to operate according to the corresponding initial feeding frequency if the actual feeding frequency of the corresponding cold storage bin 1 does not need to be corrected.
In an embodiment of the present invention, steps S40 and S50 may be performed by the control module 104.
In addition, the control module 104 is further configured to control each cold storage bin 1 to operate according to the initial feeding frequency, or control each cold storage bin 1 to operate according to the primary feeding frequency until the aggregate temperature is greater than or equal to the preset aggregate temperature and the aggregate storage amount in the hot storage bin 7 is greater than or equal to the preset aggregate storage amount.
In an embodiment of the present invention, sub-steps S24 and S25 of step S20 are performed by the control module 104.
In summary, the control method and the control device for preventing the overflow of the asphalt station and the asphalt station 10 provided by the invention can correct the actual feeding frequency of the cold material bins 1 according to the aggregate demand data of each hot material bin 7 and the feeding capacity data of each cold material bin 1, and do not depend on the material level meter 8, thereby avoiding the occurrence of overflow caused by too high feeding speed and equal material caused by too low feeding speed.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A control method for preventing the overflow of an asphalt station is characterized by comprising the following steps:
s10: acquiring aggregate demand data of each hot bin of an asphalt station and loading capacity data of each cold bin, wherein the aggregate demand data of each hot bin represents the amount of aggregate needing to be put into each hot bin in unit time, and the loading capacity data of each cold bin represents the maximum available amount of aggregate in unit time;
s20: calculating the initial loading frequency of each cold bin according to the aggregate demand data of each hot bin and the loading capacity data of each cold bin;
s30: judging whether the actual feeding frequency of each cold bin needs to be corrected or not;
s40: if the actual feeding frequency corresponding to the cold bin needs to be corrected, adjusting the feeding frequency corresponding to the cold bin, and controlling the cold bin to operate according to the adjusted feeding frequency;
s50: if the actual feeding frequency corresponding to the cold material bin does not need to be corrected, controlling the corresponding cold material bin to operate according to the corresponding initial feeding frequency;
the step S20 further includes the steps of:
s21: determining a primary loading frequency of each cold bin according to the initial loading frequency of each cold bin, wherein the primary loading frequency is characterized by the loading frequency of each cold bin when the asphalt station is produced for the first time after being stopped;
s22: controlling each cold material bin to operate according to the primary feeding frequency;
s23: judging whether the aggregate temperature before entering each hot aggregate bin is greater than or equal to a preset aggregate temperature or not; judging whether the aggregate storage capacity in each hot aggregate bin is greater than or equal to a preset aggregate storage capacity or not;
s24: when the aggregate temperature is greater than or equal to the preset aggregate temperature and the aggregate storage amount in the hot aggregate bin is greater than or equal to the preset aggregate storage amount, controlling each cold aggregate bin to operate according to the initial feeding frequency;
s25: and when the aggregate temperature is lower than the preset aggregate temperature and/or the aggregate storage amount in the hot aggregate bin is lower than the preset aggregate storage amount, controlling each cold aggregate bin to operate according to the primary feeding frequency until the aggregate temperature is higher than or equal to the preset aggregate temperature and the aggregate storage amount in the hot aggregate bin is higher than or equal to the preset aggregate storage amount.
2. The control method for the asphalt station flash prevention according to claim 1, characterized by comprising, in step S10:
and calculating aggregate demand data of each hot material bin of the asphalt station according to the production formula data of the asphalt station and a preset production period.
3. The control method for the asphalt station flash prevention according to claim 2, wherein the step S30 comprises:
if the actual production period is equal to the preset production period, judging that the actual feeding frequency does not need to be corrected;
and if the actual production period is not equal to the preset production period, judging that the actual feeding frequency needs to be corrected.
4. The control method for the asphalt station flash prevention according to claim 3, wherein the step S40 comprises:
and adjusting the feeding frequency of the corresponding cold storage bin according to the production formula data and the actual production period.
5. The control method for the asphalt station flash prevention according to claim 1, wherein the step S21 comprises:
and determining 30% -40% of the initial loading frequency of each cold bin as the initial loading frequency corresponding to each cold bin.
6. The control method for the asphalt plant anti-overflow of any one of claims 1 to 4, wherein in step S20, the initial loading frequency of each cold bin is calculated according to the following formula:
f1＝A1/A2×F，
wherein F1 represents the initial loading frequency of each cold bin, A1 represents aggregate demand data of each hot bin, A2 represents loading capacity data of each cold bin, and F represents the rated loading frequency of each cold bin, and the rated loading frequency of each cold bin is the loading frequency corresponding to the maximum available aggregate amount of each cold bin.
7. The control method for the asphalt plant overflow prevention according to any one of claims 1 to 4, wherein in the step S10, the aggregate demand data of each hot bin is calculated according to the following formula:
A1＝(P*N)*3600/T，
the aggregate demand data of each hot bin is represented by A1, the maximum capacity of a single production cycle is represented by P, the mix proportion of corresponding materials is represented by N, the preset production cycle is represented by T, and the preset production cycle represents the time for finishing one-time feeding.
8. A control device for asphalt station flash prevention, comprising:
the system comprises a receiving module, a data processing module and a data processing module, wherein the receiving module is used for acquiring aggregate demand data of each hot bin of an asphalt station and loading capacity data of each cold bin, the aggregate demand data of each hot bin represents the amount of aggregate needing to be put into each hot bin in unit time, and the loading capacity data of each cold bin represents the maximum available amount of aggregate in unit time;
the calculation module is used for calculating the initial loading frequency of each cold bin according to the aggregate demand data of each hot bin and the loading capacity data of each cold bin;
the judging module is used for judging whether the actual feeding frequency of each cold material bin needs to be corrected or not;
the control module is used for adjusting the feeding frequency corresponding to the cold storage bin and controlling the cold storage bin to operate according to the adjusted feeding frequency if the actual feeding frequency corresponding to the cold storage bin needs to be corrected; the cold material bin control device is also used for controlling the corresponding cold material bin to operate according to the corresponding initial feeding frequency if the actual feeding frequency corresponding to the cold material bin does not need to be corrected;
the calculation module is further used for determining a primary loading frequency of each cold bin according to the initial loading frequency of each cold bin, wherein the primary loading frequency is characterized by the loading frequency of each cold bin when the asphalt station is produced for the first time after being stopped; controlling each cold material bin to operate according to the primary feeding frequency; judging whether the aggregate temperature before entering each hot aggregate bin is greater than or equal to a preset aggregate temperature or not; judging whether the aggregate storage capacity in each hot aggregate bin is greater than or equal to a preset aggregate storage capacity or not; when the aggregate temperature is greater than or equal to the preset aggregate temperature and the aggregate storage amount in the hot aggregate bin is greater than or equal to the preset aggregate storage amount, controlling each cold aggregate bin to operate according to the initial feeding frequency; and when the aggregate temperature is lower than the preset aggregate temperature and/or the aggregate storage amount in the hot aggregate bin is lower than the preset aggregate storage amount, controlling each cold aggregate bin to operate according to the primary feeding frequency until the aggregate temperature is higher than or equal to the preset aggregate temperature and the aggregate storage amount in the hot aggregate bin is higher than or equal to the preset aggregate storage amount.
9. An asphalt plant, comprising:
a memory;
a controller; and
the memory stores a computer program which, when read and executed by the controller, implements the method of any one of claims 1-7.
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| CN106192676B (en) * | 2016-06-29 | 2023-01-17 | 南阳市辽原筑路机械有限公司 | Intelligent thermal aggregate storage metering system |
| CN108277720B (en) * | 2018-01-23 | 2023-12-29 | 华侨大学 | Asphalt mixing station aggregate grading online detection and anti-overflow control method and system |
| CN108330779A (en) * | 2018-04-12 | 2018-07-27 | 无锡市万方电子有限公司 | A kind of pitch mixer control system |
| CN108951368B (en) * | 2018-09-05 | 2020-09-29 | 三一汽车制造有限公司 | Automatic batching method and system for asphalt mixing plant and asphalt mixing plant |
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