CN117870833A - Asphalt station aggregate weighing device and method - Google Patents
Asphalt station aggregate weighing device and method Download PDFInfo
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- CN117870833A CN117870833A CN202410052820.9A CN202410052820A CN117870833A CN 117870833 A CN117870833 A CN 117870833A CN 202410052820 A CN202410052820 A CN 202410052820A CN 117870833 A CN117870833 A CN 117870833A
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- 238000005303 weighing Methods 0.000 title claims abstract description 156
- 238000000034 method Methods 0.000 title claims abstract description 74
- 239000010426 asphalt Substances 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 41
- 238000007599 discharging Methods 0.000 claims abstract description 38
- 230000008569 process Effects 0.000 claims abstract description 35
- 230000004044 response Effects 0.000 claims abstract description 7
- 239000000725 suspension Substances 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
The invention discloses an aggregate weighing device and a weighing method for an asphalt station, wherein the weighing device comprises: a mounting rack having an upper layer portion and a lower layer portion; the hot aggregate bin is fixed on the upper layer part; the material level gauge is fixed in the hot aggregate bin; the aggregate bin gate is fixed at the bottom of the hot aggregate bin; the aggregate scale is fixed on the lower layer part, and the top of the aggregate scale is connected to the bottom of the aggregate bin door; the weighing method comprises the following steps: acquiring the required weight of the aggregate, and determining the precise weighing amount according to the required weight; controlling a aggregate bin gate to a preset first opening, and starting coarse weighing and discharging of the hot aggregate bin; acquiring a weighing value of an aggregate scale and a material level value of a material level meter in the coarse scale discharging process, and calculating coarse scale residual demand by combining the demand weight; controlling the closure of the aggregate bin gate in response to the coarse balance remaining demand being less than or equal to the fine balance; after the weighing value is stable, pulse control is carried out on the aggregate bin gate according to the stable weighing value until the weighing of the aggregate is completed; the invention can realize high-precision aggregate weighing.
Description
Technical Field
The invention relates to the technical field of asphalt production, in particular to an aggregate weighing device and an aggregate weighing method for an asphalt station.
Background
The grading of the asphalt mixture directly relates to the quality of the finished product, so that in the construction process of an asphalt mixing station, the metering system of each grade of ingredients is a very critical part, and the metering precision is related to the quality of the final finished product. Based on the mechanical structure of the asphalt mixing station, in the asphalt mixing station industry at present, two types of metering aiming at hot aggregate are generally adopted, namely, coarse weighing and fine weighing are realized through size gate control or multi-stage air cylinders, and the weighing result is difficult to ensure the production requirement.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides an aggregate weighing device and an aggregate weighing method for an asphalt station, and solves the technical problem that the quality of a final finished product of an asphalt mixture is not ideal due to the fact that the existing hot bone weighing result is difficult to guarantee.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
in a first aspect, the invention provides an asphalt station aggregate weighing device comprising:
a mounting rack having an upper layer portion and a lower layer portion;
a thermal aggregate bin fixed on the upper layer part;
the material level gauge is fixed in the hot aggregate bin and is used for detecting the material level of the hot aggregate bin;
the aggregate bin gate is fixed at the bottom of the hot aggregate bin and is used for controlling the discharging of the hot aggregate bin;
the aggregate scale is fixed on the lower layer part, and the top of the aggregate scale is connected to the bottom of the aggregate bin gate and is used for receiving the discharge of the hot aggregate bin;
and the aggregate weighing door is fixed at the bottom of the aggregate weighing door and is used for controlling the discharging of the aggregate weighing door.
Optionally, the upper layer part comprises an upper layer plate and upper supporting legs fixed at four corners of the bottom of the upper layer plate; the lower layer part comprises a lower layer plate and lower supporting legs fixed at four corners of the bottom of the lower layer plate; the upper layer plate is positioned above the lower layer plate.
Optionally, the aggregate bin door comprises a door frame and a plurality of sub-doors; the door frame is fixed at the outlet of the hot aggregate bin, and the plurality of sub-doors are arranged in the door frame in parallel; each sub-door comprises a door plate, a rotating shaft, a connecting rod and an air cylinder; the door plate is arranged in the door frame, the rotating shaft is arranged at the center of the door plate in a penetrating way, and two ends of the rotating shaft are fixed on the door frame; one end of the rotating shaft penetrates through the door frame to the outer side of the door frame and is connected with one end of the connecting rod, the other end of the connecting rod is rotationally connected with the piston end of the air cylinder, and the cylinder body end of the air cylinder is rotationally arranged on the outer wall of the door frame or the outer wall of the hot aggregate bin.
Optionally, the aggregate scale comprises a scale body, wherein the outer wall of the scale body is provided with at least three supports, and the aggregate scale is fixed on the lower layer part through the supports; and a weighing sensor is arranged between each support and the lower layer part.
Optionally, the aggregate weighing device further comprises a controller, wherein the controller is respectively and electrically connected with the level gauge, the aggregate bin gate, the aggregate scale and the aggregate scale gate.
In a second aspect, the invention provides an asphalt station aggregate weighing method, which adopts the asphalt station aggregate weighing device, and the aggregate weighing method comprises the following steps:
acquiring the required weight of aggregate, and determining the precise weight according to the required weight;
controlling a aggregate bin gate to a preset first opening, and starting coarse weighing and discharging of the hot aggregate bin;
acquiring a weighing value of an aggregate scale and a material level value of a material level indicator in the coarse scale discharging process, and calculating coarse scale residual demand by combining the demand weight;
controlling the closure of the aggregate bin gate in response to the coarse balance remaining demand being less than or equal to the fine balance weight;
and after the weighing value is stable, pulse control is carried out on the aggregate bin gate according to the stabilized weighing value until the weighing of the aggregate is completed.
Optionally, the fine weight M ′ K·m, where k is a preset fine scale ratio and M is a required weight.
Optionally, the coarse balance remaining demand m i The method comprises the following steps:
m i ＝M i -M 0 +F i
wherein m is i 、M i 、F i The method is characterized in that the method comprises the steps of (1) coarse weighing residual demand quantity, weighing value and suspension quantity at the ith moment in the coarse weighing discharging process; m is M 0 The weighing value is the initial time of the coarse weighing discharging process;
the suspension amount F i The acquisition process of (1) comprises:
determining the material level of the hot aggregate bin in a full bin state, and marking the material level as L;
dividing 0 to L into a plurality of material level sections, and calibrating a suspension amount for each material level section;
matching corresponding material level sections according to the material level value at the ith moment in the coarse weighing discharging process so as to obtain corresponding suspension quantity F i 。
Optionally, the pulse control of the aggregate bin gate according to the stabilized weighing value includes:
s1, calculating the current residual demand m according to the stabilized weighing value ′ ＝M-(M * -M 0 ) Wherein M is the required weight, M * For stable weighing value, M 0 The weighing value is the initial time of the coarse weighing discharging process;
s2, according to theCurrent remaining demand amount the current refined duration t=k·m ′ Wherein K is a preset pulse coefficient;
s3, controlling a aggregate bin gate to a preset second opening degree, and starting precisely weighing and discharging the hot aggregate bin, wherein the second opening degree is smaller than the first opening degree;
s4, acquiring a weighing value of an aggregate scale and a material level value of a material level meter in the process of precisely weighing and discharging, and calculating precisely weighing residual demand by combining the demand weight;
s5, controlling the closure of the aggregate bin gate in response to the fact that the precise balance residual demand is greater than zero when the current precise balance duration time T is reached; returning to the step S1 after the weighing value is stable;
and responding to any moment of the current precise weighing duration time T, and controlling the closure of the aggregate bin gate to finish the aggregate weighing if the precise weighing residual demand quantity is equal to zero.
Optionally, the fine balance residual demandThe method comprises the following steps:
in the method, in the process of the invention,the method is characterized in that the method is a refined residual demand quantity and a weighing value at the j-th moment in the n-th refined discharging process; f (F) n For accurately weighing the suspension amount in the discharging process for the nth time, F n ＝F n +k 1 ·m ′ +k 2 ·F n +k 3 ·F n-1 ，k 1 、k 2 、k 3 Respectively, the preset correction coefficients.
Compared with the prior art, the invention has the beneficial effects that:
according to the asphalt station aggregate weighing device and the asphalt station aggregate weighing method, the weighing efficiency and the weighing precision are both considered through coarse weighing and fine weighing; meanwhile, in the precise weighing process, pulse weighing is realized by changing the duration time and the interval time of opening the material gate in real time, so that the metering precision is further improved; and the quality of the final finished product of the subsequent asphalt mixture is ensured.
Drawings
FIG. 1 is a schematic structural view of an aggregate weighing device for an asphalt station according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a aggregate bin gate according to an embodiment of the present invention;
FIG. 3 is a schematic circuit diagram of an aggregate weighing device for an asphalt station according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method for weighing aggregate in an asphalt station according to a second embodiment of the present invention;
fig. 5 is a schematic flow chart of pulse control for the aggregate bin gate according to the second embodiment of the present invention;
marked in the figure as:
1-mounting rack; 11-an upper layer portion; 111-upper plate; 112-upper leg; 12-lower layer part; 121-a lower plate; 122-lower leg; 2-a hot aggregate bin; 3-a charge level indicator; 4-aggregate bin gate; 41-door frame; 42-sub-gates; 421-door panel; 422-a spindle; 423-connecting rod; 424-cylinder; 5-weighing aggregate; 51-weighing; 52-supporting seats; 53-a load cell; 6-aggregate weighing gate.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
Embodiment one:
as shown in fig. 1, the embodiment of the invention provides an aggregate weighing device of an asphalt station, which comprises a mounting frame 1, a hot aggregate bin 2, a material level meter 3, an aggregate bin door 4, an aggregate scale 5 and an aggregate scale door 6; the mount 1 has an upper layer 11 and a lower layer 12; the hot aggregate bin 2 is fixed on the upper layer part 11; the material level gauge 3 is fixed in the hot aggregate bin 2 and is used for detecting the material level of the hot aggregate bin 2; the aggregate bin gate 4 is fixed at the bottom of the aggregate bin 2 and is used for controlling the discharging of the aggregate bin 2; the aggregate scale 5 is fixed on the lower layer part 12, and the top is connected to the bottom of the aggregate bin door 4 and is used for receiving the discharge of the hot aggregate bin 2; the aggregate scale door 6 is fixed at the bottom of the aggregate scale 5 and is used for controlling the discharging of the aggregate scale 5.
Specifically, in the present embodiment, the upper layer 11 includes an upper layer plate 111 and upper legs 112 fixed to four corners of the bottom of the upper layer plate 11; the lower layer 12 comprises a lower layer plate 121 and lower support legs 122 fixed at four corners of the bottom of the lower layer plate 121; the upper plate 111 is located above the lower plate 121. To ensure structural integrity, the upper support legs 112 may be disposed on the upper surface of the lower plate 121 and in one-to-one correspondence with the positions of the lower support legs 122; in other alternative embodiments, the upper and lower sections 11, 12 may be provided in other forms, primarily for the purpose of securing the hotbone silo 2 above the aggregate scale 5.
As shown in fig. 1 and 2, in particular in the present embodiment, the aggregate bin door 4 includes a door frame 41 and a plurality of sub-doors 42; the door frame 41 is fixed at the outlet of the hot aggregate bin 2, and a plurality of sub-doors 42 are arranged in the door frame 41 in parallel; each sub-door 42 includes a door plate 421, a rotation shaft 422, a link 423, and a cylinder 424; the door plate 421 is disposed in the door frame 41, the rotating shaft 422 is disposed at the center of the door plate 421 in a penetrating manner, and two ends of the rotating shaft are fixed on the door frame 41; one end of the rotating shaft 422 penetrates through the door frame 41 to the outer side of the door frame 41 to be connected with one end of the connecting rod 423, the other end of the connecting rod 423 is rotatably connected with a piston end of the air cylinder 424, and the cylinder end of the air cylinder 424 is rotatably arranged on the outer wall of the door frame 41 or the outer wall of the hot aggregate bin 2. The plurality of sub-doors 42 can be opened or closed independently, so that the overall opening degree of the aggregate bin door 2 is adjusted by controlling the opening quantity of the sub-doors 42; each sub-door 42 is opened and closed by driving the link 423 through the air cylinder 424, the link 423 drives the rotary shaft 422 to rotate, and the rotary shaft 422 drives the door plate 421 to rotate.
Specifically in this embodiment, the aggregate scale 5 includes a scale body 51, at least three supports 52 are provided on the outer wall of the scale body 51, and are fixed to the lower layer 12 through the supports 52; a load cell 53 is arranged between each support 52 and the lower layer 12; in order to ensure the stability of the weighing body 51, the supports 52 are generally uniformly arranged on the weighing body 51 along the circumference, and each support 52 is positioned on the same horizontal plane, and each weighing sensor 53 is positioned on the same horizontal plane.
In this embodiment, the aggregate door 6 has a similar structure to the aggregate bin door 4, and the specific structure thereof will not be described again.
As shown in fig. 3, in this embodiment, the aggregate weighing device further includes a controller electrically connected to the level gauge 3, the aggregate bin gate 4, the aggregate scale 5, and the aggregate scale gate 6, respectively; the controller is usually a PLC controller commonly used in industry, and one end of the controller can be connected to an upper computer for control, such as a PC; the level gauge 3 and the weighing sensor 53 are required to transmit the converted digital signals to the PLC through an AD conversion module; the control ends of the air cylinders 424 on the aggregate bin gate 4 and the aggregate weighing gate 6 are connected to the PCL controller, so that the control of the action of the air cylinders is realized.
Embodiment two:
as shown in fig. 4, the invention provides a method for weighing asphalt station aggregates, which adopts the asphalt station aggregate weighing device as set forth in the first embodiment, and comprises the following steps:
step 1, acquiring the required weight of aggregate, and determining the precise weighing amount according to the required weight;
in order to achieve the balance of weighing efficiency and weighing precision, the weighing is generally divided into two stages, wherein the first stage is coarse weighing, and the efficiency is high; the second stage is precise weighing, so that the precision is high; a demarcation point, i.e. the nominal weight M, is required between the first stage and the second stage ′ K·m, where k is a preset fine scale ratio and M is a required weight.
And 2, controlling a aggregate bin gate to a preset first opening degree, and starting coarse weighing and discharging of the hot aggregate bin.
Step 3, acquiring a weighing value of an aggregate scale and a material level value of a material level meter in the coarse scale discharging process, and calculating coarse scale residual demand by combining the demand weight;
coarse balance of residual demand m i The method comprises the following steps:
m i ＝M i -M 0 +F i
wherein m is i 、M i 、F i The method is characterized in that the method comprises the steps of (1) coarse weighing residual demand quantity, weighing value and suspension quantity at the ith moment in the coarse weighing discharging process; m is M 0 The weighing value is the initial time of the coarse weighing discharging process;
suspension amount F i The acquisition process of (1) comprises:
determining the material level of the hot aggregate bin in a full bin state, and marking the material level as L;
dividing 0 to L into a plurality of material level sections, and calibrating a suspension amount for each material level section;
matching corresponding material level sections according to the material level value at the ith moment in the coarse weighing discharging process so as to obtain corresponding suspension quantity F i 。
Step 4, controlling the closure of the aggregate bin door in response to the rough balance residual demand being less than or equal to the fine balance weight; at this time, the first stage is ended and the second stage is entered subsequently.
Step 5, after the weighing value is stable, pulse control is carried out on the aggregate bin gate according to the stabilized weighing value until the weighing of the aggregate is completed;
as shown in fig. 5, pulse controlling the aggregate bin gate according to the stabilized weighing value includes:
s1, calculating the current residual demand m according to the stabilized weighing value ′ ＝M-(M * -M 0 ) Wherein M is the required weight, M * For stable weighing value, M 0 The weighing value is the initial time of the coarse weighing discharging process;
s2, calculating the current refined duration time T=K.m according to the current residual demand quantity ′ Wherein K is a preset pulse coefficient;
s3, controlling a aggregate bin gate to a preset second opening degree, and starting precisely weighing and discharging the hot aggregate bin, wherein the second opening degree is smaller than the first opening degree; the second opening is reduced, which is helpful for controlling the precision;
s4, acquiring a weighing value of an aggregate scale and a material level value of a material level meter in the process of precisely weighing and discharging, and calculating precisely weighing residual demand by combining the demand weight;
accurately weighing the residual demandThe method comprises the following steps:
in the method, in the process of the invention,the method is characterized in that the method is a refined residual demand quantity and a weighing value at the j-th moment in the n-th refined discharging process; f (F) n For accurately weighing the suspension amount in the discharging process for the nth time, F n ＝F n +k 1 ·m ′ +k 2 ·F n +k 3 ·F n-1 ，k 1 、k 2 、k 3 Respectively, the preset correction coefficients.
S5, controlling the closure of the aggregate bin gate in response to the fact that the precise balance residual demand is greater than zero when the current precise balance duration time T is reached; returning to the step S1 after the weighing value is stable;
and responding to any moment of the current precise weighing duration time T, and controlling the closure of the aggregate bin gate to finish the aggregate weighing if the precise weighing residual demand quantity is equal to zero.
Step S1-step S5 finish the process of one-time pulse weighing, and the weighing calibration is realized through multiple times of pulse weighing, so that the high-precision weighing is realized. After weighing is completed, the aggregate weighing door is opened to obtain the required aggregate.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (10)
1. An asphalt station aggregate weighing device, characterized by comprising:
a mounting rack having an upper layer portion and a lower layer portion;
a thermal aggregate bin fixed on the upper layer part;
the material level gauge is fixed in the hot aggregate bin and is used for detecting the material level of the hot aggregate bin;
the aggregate bin gate is fixed at the bottom of the hot aggregate bin and is used for controlling the discharging of the hot aggregate bin;
the aggregate scale is fixed on the lower layer part, and the top of the aggregate scale is connected to the bottom of the aggregate bin gate and is used for receiving the discharge of the hot aggregate bin;
and the aggregate weighing door is fixed at the bottom of the aggregate weighing door and is used for controlling the discharging of the aggregate weighing door.
2. The asphalt station aggregate weighing apparatus according to claim 1, wherein said upper layer portion comprises an upper layer plate and upper legs fixed to four corners of the bottom of said upper layer plate; the lower layer part comprises a lower layer plate and lower supporting legs fixed at four corners of the bottom of the lower layer plate; the upper layer plate is positioned above the lower layer plate.
3. The asphalt station aggregate weighing apparatus of claim 1, wherein said aggregate bin door comprises a door frame and a plurality of sub-doors; the door frame is fixed at the outlet of the hot aggregate bin, and the plurality of sub-doors are arranged in the door frame in parallel; each sub-door comprises a door plate, a rotating shaft, a connecting rod and an air cylinder; the door plate is arranged in the door frame, the rotating shaft is arranged at the center of the door plate in a penetrating way, and two ends of the rotating shaft are fixed on the door frame; one end of the rotating shaft penetrates through the door frame to the outer side of the door frame and is connected with one end of the connecting rod, the other end of the connecting rod is rotationally connected with the piston end of the air cylinder, and the cylinder body end of the air cylinder is rotationally arranged on the outer wall of the door frame or the outer wall of the hot aggregate bin.
4. The asphalt station aggregate weighing apparatus of claim 1, wherein said aggregate scale comprises a scale body, said scale body outer wall being provided with at least three supports and being secured to said lower layer portion by said supports; and a weighing sensor is arranged between each support and the lower layer part.
5. The asphalt station aggregate weighing apparatus of claim 1, further comprising a controller electrically connected to the level gauge, the aggregate bin gate, the aggregate scale, and the aggregate scale gate, respectively.
6. An asphalt station aggregate weighing method, characterized in that an asphalt station aggregate weighing apparatus according to any one of claims 1 to 5 is employed, comprising:
acquiring the required weight of aggregate, and determining the precise weight according to the required weight;
controlling a aggregate bin gate to a preset first opening, and starting coarse weighing and discharging of the hot aggregate bin;
acquiring a weighing value of an aggregate scale and a material level value of a material level indicator in the coarse scale discharging process, and calculating coarse scale residual demand by combining the demand weight;
controlling the closure of the aggregate bin gate in response to the coarse balance remaining demand being less than or equal to the fine balance weight;
and after the weighing value is stable, pulse control is carried out on the aggregate bin gate according to the stabilized weighing value until the weighing of the aggregate is completed.
7. The method of claim 6, wherein the nominal weight M' =k·m, where k is a predetermined nominal proportion and M is a required weight.
8. The method for weighing asphalt plant aggregate according to claim 6, wherein said coarse balance remaining demand m i The method comprises the following steps:
m i ＝M i -M 0 +F i
wherein m is i 、M i 、F i The method is characterized in that the method comprises the steps of (1) coarse weighing residual demand quantity, weighing value and suspension quantity at the ith moment in the coarse weighing discharging process; m is M 0 The weighing value is the initial time of the coarse weighing discharging process;
the suspension amount F i The acquisition process of (1) comprises:
determining the material level of the hot aggregate bin in a full bin state, and marking the material level as L;
dividing 0 to L into a plurality of material level sections, and calibrating a suspension amount for each material level section;
matching corresponding material level sections according to the material level value at the ith moment in the coarse weighing discharging process so as to obtain corresponding suspension quantity F i 。
9. The method of claim 6, wherein the pulsing the aggregate bin gate according to the stabilized weight value comprises:
s1, calculating the current residual demand M' =M- (M) according to the stabilized weighing value * -M 0 ) Wherein M is the required weight, M * For stable weighing value, M 0 The weighing value is the initial time of the coarse weighing discharging process;
s2, calculating a current refined duration time T=K.m' according to the current residual demand, wherein K is a preset pulse coefficient;
s3, controlling a aggregate bin gate to a preset second opening degree, and starting precisely weighing and discharging the hot aggregate bin, wherein the second opening degree is smaller than the first opening degree;
s4, acquiring a weighing value of an aggregate scale and a material level value of a material level meter in the process of precisely weighing and discharging, and calculating precisely weighing residual demand by combining the demand weight;
s5, controlling the closure of the aggregate bin gate in response to the fact that the precise balance residual demand is greater than zero when the current precise balance duration time T is reached; returning to the step S1 after the weighing value is stable;
and responding to any moment of the current precise weighing duration time T, and controlling the closure of the aggregate bin gate to finish the aggregate weighing if the precise weighing residual demand quantity is equal to zero.
10. The asphalt station aggregate weighing method of claim 9, wherein said fine balance remaining demandThe method comprises the following steps:
in the method, in the process of the invention,the method is characterized in that the method is a refined residual demand quantity and a weighing value at the j-th moment in the n-th refined discharging process; f (F) n For accurately weighing the suspension amount in the discharging process for the nth time, F n ＝F n +k 1 ·m′+k 2 ·F n +k 3 ·F n-1 ，k 1 、k 2 、k 3 Respectively, the preset correction coefficients.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410052820.9A CN117870833A (en) | 2024-01-12 | 2024-01-12 | Asphalt station aggregate weighing device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410052820.9A CN117870833A (en) | 2024-01-12 | 2024-01-12 | Asphalt station aggregate weighing device and method |
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| Publication Number | Publication Date |
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| CN117870833A true CN117870833A (en) | 2024-04-12 |
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| CN202410052820.9A Pending CN117870833A (en) | 2024-01-12 | 2024-01-12 | Asphalt station aggregate weighing device and method |
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- 2024-01-12 CN CN202410052820.9A patent/CN117870833A/en active Pending
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