CN115416162B - Concrete mixing building and aggregate feeding method thereof - Google Patents
Concrete mixing building and aggregate feeding method thereof Download PDFInfo
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- CN115416162B CN115416162B CN202211055390.3A CN202211055390A CN115416162B CN 115416162 B CN115416162 B CN 115416162B CN 202211055390 A CN202211055390 A CN 202211055390A CN 115416162 B CN115416162 B CN 115416162B
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 69
- 230000008569 process Effects 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 13
- 238000011068 loading method Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 230000009471 action Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0481—Plant for proportioning, supplying or batching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0046—Storage or weighing apparatus for supplying ingredients
- B28C7/0053—Storage containers, e.g. hoppers, silos, bins
- B28C7/0061—Storage container plant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/005—Control arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2814/00—Indexing codes relating to loading or unloading articles or bulk materials
- B65G2814/03—Loading or unloading means
- B65G2814/0301—General arrangements
- B65G2814/0302—Central control devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The application discloses a concrete mixing building and an aggregate feeding method. The aggregate feeding method of the concrete mixing building comprises the steps of obtaining the current aggregate amount of aggregates in each upstairs bin in real time; if the current aggregate amount of the aggregate in the first upstairs bin of the at least two upstairs bins is smaller than a first set threshold value, controlling the feeding device to feed the aggregate to the first upstairs bin; in the process of controlling the feeding device to feed materials to the first-floor feeding bin, if the material quantity of the aggregate of the second-floor feeding bin in the rest of the feeding bins is smaller than a first set threshold value, continuously feeding the aggregate to the first-floor feeding bin, stopping feeding the aggregate to the first-floor feeding bin after the material quantity of the aggregate of the first-floor feeding bin is larger than the second set threshold value, and controlling the feeding device to feed the aggregate to the second-floor feeding bin. According to the aggregate feeding method, the feeding action of the feeding device is controlled according to the current material quantity obtained in real time, and the upstairs bin with the first material shortage is fed preferentially, so that the risks of production delay and production efficiency reduction caused by the material shortage are avoided.
Description
Technical Field
The application relates to a concrete mixing building and an aggregate feeding method thereof.
Background
Aggregate of the concrete mixing building is directly weighed on the building, and production efficiency is high. However, the proportion of each aggregate is different, so that some aggregates consume fast and some aggregates consume slow, and for this reason, a user can purchase a large amount of aggregates, and sometimes one bin cannot be placed completely and needs to be placed in multiple bins. In addition, because the aggregate consumption is different, the aggregate with quick consumption should be timely replenished and a certain amount of aggregate is maintained in the bin so as to avoid delaying production.
As shown in fig. 1, the conventional feeding mode is that one stock yard bin corresponds to one upstairs bin, and specifically, the stock yard bin 1 is only fed by the upstairs bin 1, the stock yard bin 2 is only fed by the upstairs bin 2 … …, and the stock yard bin i is fed by the upstairs bin i. The stock yard bin 1 is used for feeding the material to the upstairs bin 1, after the material is full, the tailing is emptied, the stock yard bin 2 is used for feeding the material to the upstairs bin 2, and the cyclic reciprocation is performed in sequence.
The feeding mode not only binds the materials with the stock house stock bin, but also can not be used for supplying the materials with high consumption preferentially, and can not ensure that the upstairs stock bin always has the materials.
Disclosure of Invention
The application provides a concrete mixing building and an aggregate feeding method thereof, which are used for improving production efficiency.
The first aspect of the application provides a method for feeding aggregate into a concrete mixing plant, the concrete mixing plant comprising at least two upstairs bins, comprising the steps of:
acquiring the current material quantity of aggregate in each upstairs bin of at least two upstairs bins in real time;
if the current aggregate amount of the aggregate in the first upstairs bin of the at least two upstairs bins is smaller than a first set threshold value, controlling the feeding device to feed the aggregate to the first upstairs bin;
in the process of controlling the feeding device to feed materials to the first-floor feeding bin, if the material quantity of the aggregate of the second-floor feeding bin in the rest of the feeding bins is smaller than a first set threshold value, continuously feeding the aggregate to the first-floor feeding bin, stopping feeding the aggregate to the first-floor feeding bin after the material quantity of the aggregate of the first-floor feeding bin is larger than the second set threshold value, and controlling the feeding device to feed the aggregate to the second-floor feeding bin.
In some embodiments, the aggregate feeding method further comprises: in the process of controlling the feeding device to feed the aggregates to the first-floor feeding bin, if the aggregate amounts of the aggregates of the rest of the feeding bins are all larger than the first set threshold value, continuously feeding the aggregates to the first-floor feeding bin so that the aggregate amounts of the aggregates of the first-floor feeding bin are larger than a third set threshold value, and the third set threshold value is larger than the second set threshold value.
In some embodiments, the concrete mixing plant further comprises a plurality of yard bins, and the aggregate loading method further comprises: the corresponding feeding relations between a plurality of stock ground bins and at least two upstairs bins are preset, and corresponding stock ground bins are adopted for feeding according to the corresponding feeding relations during feeding.
In some embodiments, if there are at least two yard bins corresponding to the first on-floor bin, the at least two yard bins are controlled to feed the first on-floor bin on average.
In some embodiments, controlling at least two stockyard bins to feed on average to a first on-floor bin includes calculating a difference between a maximum amount of material when the first on-floor bin is full and a current amount of material; and the difference is equally distributed to at least two stockyard bins.
In some embodiments, obtaining in real time the amount of aggregate in each of the at least two upstairs silos includes obtaining in real time the depth or weight of the aggregate.
In some embodiments, the first upstairs bin is the upstairs bin of the at least two upstairs bins having a current charge amount that is initially less than the first set threshold.
In some embodiments, the aggregate loading method further comprises emptying the tailings in the feeder device prior to controlling the feeder device to feed the second building upper bin.
The second aspect of the application provides a concrete mixing plant, which comprises at least two upstairs bins, a plurality of stock ground bins, at least two detection elements, a feeding device and a controller, wherein the at least two detection elements are correspondingly arranged on the at least two upstairs bins to detect the current material quantity of aggregate in the upstairs bins in real time, the controller is in signal connection with the at least two detection elements and the feeding device, and the controller controls the feeding device to act according to the current material quantity detected by the at least two detection elements.
Based on the technical scheme provided by the application, the aggregate feeding method of the concrete mixing plant comprises the following steps: acquiring the current material quantity of aggregate in each upstairs bin of at least two upstairs bins in real time; if the current aggregate amount of the aggregate in the first upstairs bin of the at least two upstairs bins is smaller than a first set threshold value, controlling the feeding device to feed the aggregate to the first upstairs bin; in the process of controlling the feeding device to feed materials to the first-floor feeding bin, if the material quantity of the aggregate of the second-floor feeding bin in the rest of the feeding bins is smaller than a first set threshold value, continuously feeding the aggregate to the first-floor feeding bin, stopping feeding the aggregate to the first-floor feeding bin after the material quantity of the aggregate of the first-floor feeding bin is larger than the second set threshold value, and controlling the feeding device to feed the aggregate to the second-floor feeding bin. According to the aggregate feeding method, the aggregate amount of each upstairs bin is obtained in real time in the working process, the feeding action of the feeding device is controlled according to the current material amount obtained in real time, and the upstairs bin with the first material shortage is fed preferentially, so that the risks of delaying production and reducing production efficiency due to the material shortage are avoided. In order to improve the feeding efficiency, when the rest upstairs bins are in a material shortage state, the feeding is continuously performed to the upstairs bin which is in the first state so as to avoid repeated feeding due to the fact that the upstairs bin is in the material shortage state again, the aggregate of the upstairs bin which is in the first state is greater than a second set threshold value and then stops, and then the aggregate is turned to the upstairs bin which is in the second state to be fed, so that the production efficiency is further improved.
Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the application, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 shows the correspondence between a stockyard bin and an upstair bin in the prior art.
Fig. 2 is a flowchart of an aggregate feeding method according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways and the spatially relative descriptions used herein are construed accordingly.
The inventor of the application discovers that in the prior art, a sequential circulating feeding mode is adopted, upstairs bins can only be fed by a specified one of the stock yard bins, the supply is inflexible, the bins with fast material consumption cannot be fed preferentially, and the risks of delaying production and reducing production efficiency due to material shortage exist.
In order to solve the problems, the embodiment of the application provides an aggregate feeding method of a concrete mixing plant. The concrete mixing plant comprises at least two upstairs bins.
As shown in fig. 2, the aggregate feeding method of the concrete mixing plant according to the embodiment of the application comprises the following steps:
s501, acquiring the current aggregate amount in each upstairs bin of at least two upstairs bins in real time;
s502, if the current aggregate amount of aggregate in a first upstairs bin of the at least two upstairs bins is smaller than a first set threshold value, controlling a feeding device to feed the aggregate to the first upstairs bin;
s503, in the process of controlling the feeding device to feed materials to the first-floor feeding bin, if the aggregate amount of the second-floor feeding bin in the rest of the feeding bins is smaller than a first set threshold value, continuously feeding the materials to the first-floor feeding bin, stopping feeding the materials to the first-floor feeding bin after the aggregate amount of the first-floor feeding bin is larger than the second set threshold value, and controlling the feeding device to feed the materials to the second-floor feeding bin.
According to the aggregate feeding method, the aggregate amount of each upstairs bin is obtained in real time in the working process, the feeding action of the feeding device is controlled according to the current material amount obtained in real time, and the upstairs bin with the first material shortage is fed preferentially, so that the risks of production delay caused by the material shortage and production efficiency reduction are avoided. In order to improve the feeding efficiency, when the rest upstairs bins are in a material shortage state, the feeding is continuously performed to the upstairs bin which is in the first state so as to avoid repeated feeding due to the fact that the upstairs bin is in the material shortage state again, the aggregate of the upstairs bin which is in the first state is greater than a second set threshold value and then stops, and then the aggregate is turned to the upstairs bin which is in the second state to be fed, so that the production efficiency is further improved.
The first upstairs bin is the upstairs bin of which the current material quantity is smaller than a first set threshold value in at least two upstairs bins. That is, the "first upstairs silo" as described herein refers to an upstair silo that is not a particular one of the plurality of upstair silos, but is the first upstair silo to have a material shortage.
In some embodiments, the aggregate feeding method further comprises: in the process of controlling the feeding device to feed the aggregates to the first-floor feeding bin, if the aggregate amounts of the aggregates of the rest of the feeding bins are all larger than the first set threshold value, continuously feeding the aggregates to the first-floor feeding bin so that the aggregate amounts of the aggregates of the first-floor feeding bin are larger than a third set threshold value, and the third set threshold value is larger than the second set threshold value. That is, in the process of feeding the first upstairs bin with the first material shortage, if the other upstairs bins are not in the material shortage condition, more material is fed to the first upstairs bin at one time, the third set threshold is reached, the third set threshold is greater than the second set threshold, and the third set threshold is close to or equal to the full bin material quantity.
In order to solve the problem caused by one-to-one correspondence between the stock house bin and the upstairs bin in the prior art, in the embodiment of the application, more than two stock house bins may be corresponding to a certain upstair bin, so that the corresponding relationship between the stock house bin and the upstair bin needs to be preset before feeding.
In some embodiments, the concrete mixing plant further comprises a plurality of yard silos. The aggregate feeding method further comprises the following steps: the corresponding feeding relations between a plurality of stock ground bins and at least two upstairs bins are preset, and corresponding stock ground bins are adopted for feeding according to the corresponding feeding relations during feeding.
For example, a concrete mixing plant includes i stockyard bins and j upstairs bins, then three situations may occur for a stockyard bin of the i stockyard bins that does not feed any upstairs bin; the material field bin supplies material to a upstairs bin; the storage bin of the certain stock yard supplies materials to a plurality of upstairs storage bins.
In some embodiments, if there are at least two yard bins corresponding to the first on-floor bin, the at least two yard bins are controlled to feed the first on-floor bin on average.
In some embodiments, controlling at least two stockyard bins to feed on average to a first on-floor bin includes calculating a difference between a maximum amount of material when the first on-floor bin is full and a current amount of material; and the difference is equally distributed to at least two stockyard bins.
Specifically, for example, m stock yard bins corresponding to the first-floor stock bins are provided, the material level height difference H between the initial feeding moment and the full bin state is calculated, the H is equally divided into m parts, and each supply bin is fed with H/m.
In some embodiments, obtaining in real time the amount of aggregate in each of the at least two upstairs silos includes obtaining in real time the depth or weight of the aggregate. That is, the amount of aggregate can be obtained by measuring the weight of aggregate in the upstairs silo, or by measuring the depth of aggregate in the upstairs silo.
In some embodiments, the aggregate loading method further comprises emptying the tailings in the feeder device prior to controlling the feeder device to feed the second building upper bin. The aggregate between the different upstairs bins can be prevented from being mixed by the arrangement.
The embodiment of the application also provides a concrete mixing building, which comprises at least two upstairs bins, a plurality of stock ground bins, at least two detection elements, a feeding device and a controller, wherein the at least two detection elements are correspondingly arranged on the at least two upstairs bins to detect the current material quantity of aggregate in the upstairs bins in real time, the controller is in signal connection with the at least two detection elements and the feeding device, and the controller controls the feeding device to act according to the current material quantity detected by the at least two detection elements.
Specifically, the at least two detection elements comprise at least two gravity sensors correspondingly arranged at the bottoms of the at least two upstairs bins. The at least two gravity sensors are in signal connection with the controller, so that in the working process of the concrete mixing plant, the at least two gravity sensors continuously monitor the weight of aggregate in the upstairs storage bin and transmit the monitored weight signals to the controller. After the controller receives the weight signals, whether the upstairs bins are in a material shortage condition or not can be judged according to the weight signals, and after judgment, the controller further controls the feeding device to act according to judgment results.
Specifically, when the controller judges that the weight of aggregate of a certain upstairs bin is lower than a first set threshold, that is to say, the condition of material shortage occurs, the controller controls the discharge end of the feeding device to move to the position above the upstairs bin with the material shortage, and controls the feed inlet of the feeding device to move to the position of the corresponding material yard bin with the upstairs bin with the material shortage according to the corresponding relation between the upstairs bin and the material yard bin.
Since the stirring floor is continuously operated, a second upstair bin may also be present during the feeding of the first upstair bin, which is lacking, and the feeding target of the feeding device is required to be changed, in this process, for the feeding device, the feeding priority is changed.
The present application optimizes this in order to increase the efficiency of the feed. In the process of feeding the first material-lacking upstairs bin, if the second material-lacking upstairs bin appears, the second material-lacking upstairs bin is not immediately fed at this time, but the first material-lacking upstairs bin is continuously fed, the material quantity of the first material-lacking upstairs bin reaches a second set threshold value which is larger than the first set threshold value, and the second material-lacking upstairs bin is fed at this time.
However, in the process of feeding the first upstairs bin with the missing material, if no other upstairs bin with the missing material occurs, the feeding of the first upstairs bin with the missing material is continued until the feeding amount reaches a third set threshold value close to the full material state, and the third set threshold value may be equal to the full material.
Of course, in each of the above embodiments, the first set threshold value, the second set threshold value, and the third set threshold value may be set according to actual situations.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same; while the application has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present application or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the application, it is intended to cover the scope of the application as claimed.
Claims (8)
1. The aggregate feeding method of the concrete mixing plant comprises at least two upstairs bins, and is characterized by comprising the following steps:
acquiring the current aggregate amount in each upstairs bin of the at least two upstairs bins in real time;
if the current aggregate amount of the aggregate in the first upstairs bin of the at least two upstairs bins is smaller than a first set threshold value, controlling a feeding device to feed the aggregate to the first upstairs bin;
in the process of controlling the feeding device to feed the aggregates to the first-floor feeding bin, if the aggregate amount of the aggregates of the second-floor feeding bin in the rest of the feeding bins is smaller than a first set threshold value, continuously feeding the aggregates to the first-floor feeding bin, stopping feeding the aggregates to the first-floor feeding bin after the aggregate amount of the aggregates of the first-floor feeding bin is larger than a second set threshold value, and controlling the feeding device to feed the aggregates to the second-floor feeding bin;
in the process of controlling the feeding device to feed the aggregates to the first upstairs bin, if the aggregate amounts of the aggregates of the other upstairs bins are all larger than a first set threshold, continuously feeding the aggregates to the first upstairs bin so that the aggregate amounts of the aggregates of the first upstairs bin are larger than a third set threshold, and the third set threshold is larger than the second set threshold.
2. The aggregate feeding method of claim 1, wherein the concrete mixing plant further comprises a plurality of yard bins, the aggregate feeding method further comprising: and presetting a feeding corresponding relation between a plurality of stock ground bins and at least two upstairs bins, and feeding by adopting corresponding stock ground bins according to the feeding corresponding relation during feeding.
3. The aggregate loading method of claim 2, wherein if at least two stockyard bins correspond to the first on-floor bin, the at least two stockyard bins are controlled to feed the first on-floor bin on average.
4. The aggregate loading method of claim 3, wherein controlling the at least two yard bins to feed the first on average comprises calculating a difference between a maximum amount of material when the first on-floor bin is full and a current amount of material; and evenly distributing the difference to the at least two stock yard bins.
5. The aggregate loading method of claim 1, wherein acquiring in real time the amount of aggregate in each of the at least two upstairs silos comprises acquiring in real time the depth or weight of the aggregate.
6. The aggregate feeding method according to claim 1, wherein the first upstairs bin is an upstair bin of which a current amount of material is first smaller than a first set threshold value among the at least two upstair bins.
7. The aggregate loading method of claim 1, further comprising emptying tailings in the feeder device prior to controlling the feeder device to feed the second building loading bin.
8. A concrete mixing plant based on the aggregate feeding method according to claim 1, characterized by comprising at least two upstairs bins, a plurality of stockyard bins, at least two detection elements, a feeding device and a controller, wherein the at least two detection elements are correspondingly arranged on the at least two upstairs bins to detect the current amount of aggregate in the upstairs bins in real time, the controller is in signal connection with the at least two detection elements and the feeding device, and the controller controls the feeding device to act according to the current amount detected by the at least two detection elements and is configured to execute the aggregate feeding method according to claim 1.
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| CN207293599U (en) * | 2017-10-25 | 2018-05-01 | 中冶华天南京电气工程技术有限公司 | A kind of more feed bins stock dispatching control devices of same material kind |
| WO2020015521A1 (en) * | 2018-07-19 | 2020-01-23 | 北京北方华创微电子装备有限公司 | Material scheduling optimization method and device, and vertical furnace device |
| CN110007696A (en) * | 2019-04-18 | 2019-07-12 | 首钢京唐钢铁联合有限责任公司 | A kind of automatic storehouse changing control system and method |
| CN212639195U (en) * | 2020-06-18 | 2021-03-02 | 陕西北元化工集团股份有限公司 | Material preparation device of buffering stock bin of dry acetylene equipment |
| CN112269363A (en) * | 2020-11-20 | 2021-01-26 | 中冶华天南京工程技术有限公司 | Intelligent scheduling method for multi-bin group combined feeding |
| CN113561335A (en) * | 2021-06-10 | 2021-10-29 | 三一汽车制造有限公司 | Method and device for calculating residual aggregate amount of aggregate bin and mixing station |
| CN114399211A (en) * | 2022-01-18 | 2022-04-26 | 中冶华天工程技术有限公司 | Method for converting flow time sequence of blast furnace bunker group scheduling into production instruction |
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