CN118047234A - Multi-line uniform-layer continuous circulation type stacking homogenization method - Google Patents
Multi-line uniform-layer continuous circulation type stacking homogenization method Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
The invention discloses a multi-line uniform layer continuous circulation type stacker homogenization method, which comprises the following steps: preliminary planning is carried out on the use of the material yard by the site condition of the material yard, the total material piling amount, the material characteristics and the geometric parameters of the material yard, and the overall shape of the material yard is determined; determining a layer of material pile height of the material pile; determining the thickness of a second layer and a layer above the second layer of the material stack; confirming the total layer number of the material pile; determining a first row material pile width of a first layer of material piles and a spacing of each row of material piles when the material piles are integrally piled; determining the total column number of the material pile; modeling in BIM software, generating a parameterized model of a stockpile, and simulating the stockpile through the interaction function of Inventor software and Revit; rapidly obtaining the stacking speed of each layer and each column under different thicknesses through model calculation; the stacker obtains different vehicle speeds by using a double-speed motor and a variable-frequency speed-regulating motor to ensure that the stacking amount per unit length is constant. The number of layers and the number of columns of the stacking material are increased, the quality fluctuation can be reduced, and the adaptability to wet materials is strong.
Description
Technical Field
The invention relates to the technical field of material stacking, in particular to a multi-linear uniform-layer continuous circulating type stacking homogenization method.
Background
In the production of cement factories, the raw material pre-homogenization technology is an important ring in the cement production process, is widely applied, and is a key for ensuring normal production and stability of the factories and improving the quality of cement. In the production process of cement, the components and the production conditions of raw materials are continuously changed, a raw material pre-homogenization storage yard is generally considered, and the raw materials are uniformly mixed according to the proportion, so that the whole components and the granularity are uniform, and the cement has important significance in improving the cement production quality and reducing the energy consumption.
The conventional arrangement forms of the pre-homogenization storage yard comprise a rectangular arrangement form and a circular arrangement form, and the circular pre-homogenization storage yard has small area. Under the condition of the same reserves, the occupied area of the round yard is 30-40% smaller than that of the Changxing yard, and the investment is less than that of the long yard; the pre-homogenizing effect of the long pre-homogenizing storage yard is better than that of the round pre-homogenizing storage yard, and particularly, the long pre-homogenizing storage yard has a post-correcting function when a pre-batching process is adopted. The long pre-homogenized yard has better effect on the long-period fluctuation. Especially for materials with higher viscosity and higher humidity, rectangular pre-homogenized yards are generally used. Under the condition that feeding is kept constant, the homogenization effect depends on a stacking and material taking mode, the traditional stacking mode comprises a herringbone stacking method, a wave method, a horizontal layer method and the like, the methods belong to single-line material distribution, the single-line material distribution method is characterized in that in the process that materials naturally fall down to be stacked, the sectional area of the stacking is continuously increased along with the increase of the stacking height, the influence of gravity is different, massive materials are concentrated on the two sides and the bottom of the stacking, the thickness of an upper material layer is too thin, the component fluctuation is large, the segregation of material particles is obvious, and the material components are unstable easily caused.
And there are also the following problems: when the moisture of the material increases, the repose angle increases, and the upper part of the end pile part is firstly taken out when the angle of the rake is unchanged, so that the grade of the material is reduced; if the water content of the raw materials is reduced, the repose angle is reduced, and the angle of the rake is unchanged, the lower part of the end pile part is firstly taken, so that the grade of the materials is increased. Therefore, the existing stacking mode is extremely easy to cause fluctuation of material components when the humidity of the materials changes.
The existing single-line type storage yard has large occupied area, lower effective storage volume and low space utilization rate.
The walking speed of the stacker is limited, the higher the walking speed is, the more layers are stacked, but when the walking speed is too high, the vibration phenomenon can occur to the equipment body. It is therefore necessary to meet the maximization requirements of the total number of layers of the stockpile by studying reasonable layer thicknesses.
Disclosure of Invention
The invention aims at: aiming at the problems existing at present, the multi-linear uniform-layer continuous circulating type stacker homogenization method is provided.
The technical scheme of the invention is as follows:
A multi-line uniform layer continuous circulation type stacker homogenization method comprises the following steps:
s1: preliminary planning is carried out on the use of the material yard by the site condition of the material yard, the total material piling amount, the material characteristics and the geometric parameters of the material yard, and the overall shape of the material yard is determined;
S2: determining a layer of material pile height of the material pile;
s3: determining the thickness of a second layer and a layer above the second layer of the material stack;
s4: confirming the total layer number of the material pile;
s5: determining a first row material pile width of a first layer of material piles and a spacing of each row of material piles when the material piles are integrally piled;
S6: determining the total column number of the material pile;
S7: in a stacking area, a first layer of material stack is formed from a starting point of stacking operation to a stacking machine reaching a stacking operation end point, then the original end point is switched to the starting point, the stacking machine runs reversely along an original path, continues stacking to reach the original starting point to form a second layer of material stack, and then the stacking operation is performed repeatedly in a circulating mode, the middle is uninterrupted, and the circulating stacking is not only in a plane but also in a vertical plane;
S8: modeling in BIM software, generating a parameterized model of a stockpile, and simulating the stockpile through the interaction function of Inventor software and Revit;
S9: rapidly obtaining the stacking speed of each layer and each column under different thicknesses through model calculation;
s10: the stacker obtains different vehicle speeds by using a double-speed motor and a variable-frequency speed-regulating motor to ensure that the stacking amount per unit length is constant.
Further, the step S1 specifically includes the following steps:
performing preliminary planning on a storage yard, and determining the following parameters:
determining the angle of repose of a material Volume weight/>；
Determining a stacking height according to material equipment；
Defining a stacking width according to a stacking field shapeAnd pile length/>；
Determining total pile quantity of material pile；
Confirming the stacking amount of the stacker。
Further, the steps S2-S5 specifically comprise the following steps: the material piles are designed in a layered manner, and the initial material pile height of the material piles in the storage yard is as follows；
The thickness of the second layer of the material pile is consistent with that of the upper material pile, and each layer has the thickness of；
Determining the total layer number of the material pile asThe calculation formula of the total layer number of the material pile is as follows: /(I)；
Calculating the width of the first row of the first layer by the initial stackThe calculation formula is as follows: /(I)；
The interval of each row of material piles is when the material piles are integrally piledThe formula is/>Wherein/>Is the spacing between adjacent stacks.
Further, the step S6 specifically includes the following steps: total column number of stockpiles isStacking column number/>The calculation formula of (2) is as follows: /(I)。
Further, the step S7 specifically includes the following steps:
In a stacking area, a point A is a starting point of stacking operation, when a stacker reaches a stacking operation end point B, a first layer of material stack is formed, then an original end point B is switched to a starting point, the stacker runs reversely along an original path, stacking is continued to reach an original starting point A, a second layer of material stack is formed, then the stacking operation is performed repeatedly in a circulating mode, the middle is uninterrupted, and the circulating stacking is not only in a plane but also in a vertical plane until the requirement of storage capacity is met;
The first layer is used as the bottom layer material when stacking, the thickness of each layer is consistent from the second layer, the first stacking amount of the first layer is calculated and defined as Find the first layer stacking speed, defined as/>The calculation formula is as follows: /(I)；
。
Further, the step S9 specifically includes the following steps:
the section area of the first row material pile of the second layer is obtained through model measurement Measuring to obtain the volume/>Find the stacking amount/>Find the first layer stacking speed/>，/>；
Obtaining the sectional area of the second row material pile of the second layer through model measurementMeasuring to obtain the volume/>Find the stacking amount/>Find the first layer stacking speed/>，/>；
The cross section area of the first row material pile of the third layer is measured by a modelMeasuring to obtain the volume/>Find the stacking amount/>Find the first layer stacking speed/>，/>；
The cross section area of the second row material pile of the third layer is measured by a modelMeasuring to obtain the volume/>Find the stacking amount/>Find the first layer stacking speed/>，/>；
The sectional area of the fourth layer of material pile is determined to be consistent with the sectional area of the second layer of material pile according to the measured size of the sectional area of the model, and the sectional area of the fifth layer of material pile is consistent with the sectional area of the third layer of material pile, and the like, the odd layers are consistent with the even layers;
Regulating and controlling the thickness parameter of each layer by a parameterized model Per column stack spacing/>The stacking speed of each layer and each column under different thicknesses can be obtained quickly.
Further, the step S10 specifically includes the following steps: the motor frequency is set to be a plurality of intervals, so that the travelling speed of the stacker is divided into a plurality of speeds, the initial stacking speed is the maximum speed, the initial stacking speed is gradually decreased along with the continuous increase of the material layers, the thickness of each layer of the material stack is equal, the thickness of the material layers is ensured to be approximately equal to the material granularity of the materials, and therefore the ideal maximization of the number of the material stacks can be realized.
Compared with the prior art, the invention has the beneficial effects that:
1. The multi-line uniform-layer continuous circulating type stacking homogenization method increases the number of stacking layers and the number of rows, can reduce quality fluctuation, and has strong adaptability to wet materials;
2. compared with the traditional herringbone stockpile, the multi-line uniform-layer continuous circulating type stockpile homogenizing method adopts a rectangular stockpile, increases the cross section area of a stockyard and improves the space utilization rate;
3. A multi-line uniform layer continuous circulation type stacker homogenization method adopts a variable frequency speed regulation method to control the travelling speed of a stacker, so that the thickness of each layer of material layer is uniform, the segregation phenomenon of the granularity of the material can be reduced, the full section of the material can be taken on all layers when the material taking machine is used for taking the material, the homogenization ratio is improved, and a better mixing effect is achieved;
4. The multi-line uniform layer continuous circulation type stacking homogenization method is characterized in that multi-line multi-point blanking is adopted to perform stacking, blanking points can be fully covered by 100%, material distribution is more uniform, compared with a traditional stacking method, the number of material layers intercepted during material taking is more, homogenization effect is better, full section material taking on all layers can be ensured when a material taking machine is used for material taking, homogenization ratio is improved, better mixing effect is achieved, material segregation phenomenon can be further reduced by the material distribution mode, and homogenization effect is improved;
5. The multi-line uniform layer continuous circulation type material piling homogenization method is characterized in that material piling is simulated firstly before material piling by means of BIM technology, the number of material piling columns, the number of layers and the speed are confirmed more quickly and accurately by parameterization regulation and control of a model and fed back to an automatic control system to guide the operation of equipment such as an actual material piling machine, repeated work and heavy calculation work are reduced, cost is saved, deviation is reduced, and material piling efficiency is greatly improved.
Drawings
FIG. 1 is a schematic diagram of a stacker path in a multi-linear, uniform layer, continuous circulation, stacker homogenization method.
FIG. 2 is a schematic view of the direction of travel of a stockpile in a multi-linear, uniform layer, continuous circulation type stockpile homogenization method.
FIG. 3 is a schematic representation of a cross-section of a stack of a multi-linear, uniform layer, continuous circulation, stack homogenization process.
FIG. 4 is a schematic view of a longitudinal section of a stockpile of a multi-linear, uniform layer, continuous circulation type stockpile homogenization process.
Detailed Description
It is noted that relational terms such as "first" and "second", and the like, are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The features and capabilities of the present invention are described in further detail below in connection with examples.
Referring to fig. 1-4, a multi-line uniform layer continuous circulation type stacker homogenization method comprises the following steps:
s1: preliminary planning is carried out on the use of the material yard by the site condition of the material yard, the total material piling amount, the material characteristics and the geometric parameters of the material yard, and the overall shape of the material yard is determined;
S2: determining a layer of material pile height of the material pile;
s3: determining the thickness of a second layer and a layer above the second layer of the material stack;
s4: confirming the total layer number of the material pile;
s5: determining a first row material pile width of a first layer of material piles and a spacing of each row of material piles when the material piles are integrally piled;
S6: determining the total column number of the material pile;
S7: in a stacking area, a first layer of material stack is formed from a starting point of stacking operation to a stacking machine reaching a stacking operation end point, then the original end point is switched to the starting point, the stacking machine runs reversely along an original path, continues stacking to reach the original starting point to form a second layer of material stack, and then the stacking operation is performed repeatedly in a circulating mode, the middle is uninterrupted, and the circulating stacking is not only in a plane but also in a vertical plane;
S8: modeling in BIM software, generating a parameterized model of a stockpile, and simulating the stockpile through the interaction function of Inventor software and Revit;
S9: rapidly obtaining the stacking speed of each layer and each column under different thicknesses through model calculation;
s10: the stacker obtains different vehicle speeds by using a double-speed motor and a variable-frequency speed-regulating motor to ensure that the stacking amount per unit length is constant.
The step S1 specifically comprises the following steps:
performing preliminary planning on a storage yard, and determining the following parameters:
determining the angle of repose of a material Volume weight/>；
Determining a stacking height according to material equipment；
Defining a stacking width according to a stacking field shapeAnd pile length/>；
Determining total pile quantity of material pile；
Confirming the stacking amount of the stacker。
The steps S2-S5 specifically comprise the following steps: the material piles are designed in a layered manner, and the initial material pile height of the material piles in the storage yard is as follows；
The thickness of the second layer of the material pile is consistent with that of the upper material pile, and each layer has the thickness of；
Determining the total layer number of the material pile asThe calculation formula of the total layer number of the material pile is as follows: /(I)；
Calculating the width of the first row of the first layer by the initial stackThe calculation formula is as follows: /(I)；
The interval of each row of material piles is when the material piles are integrally piledThe formula is/>Wherein/>Is the spacing between adjacent stacks.
The step S6 specifically comprises the following steps: total column number of stockpiles isStacking column number/>The calculation formula of (2) is as follows:。
The step S7 specifically comprises the following steps:
In a stacking area, a point A is a starting point of stacking operation, when a stacker reaches a stacking operation end point B, a first layer of material stack is formed, then an original end point B is switched to a starting point, the stacker runs reversely along an original path, stacking is continued to reach an original starting point A, a second layer of material stack is formed, then the stacking operation is performed repeatedly in a circulating mode, the middle is uninterrupted, and the circulating stacking is not only in a plane but also in a vertical plane until the requirement of storage capacity is met;
The first layer is used as the bottom layer material when stacking, the thickness of each layer is consistent from the second layer, the first stacking amount of the first layer is calculated and defined as Find the first layer stacking speed, defined as/>The calculation formula is as follows: /(I)；
。
The step S9 specifically comprises the following steps:
the section area of the first row material pile of the second layer is obtained through model measurement Measuring to obtain the volume/>Find the stacking amount/>Find the first layer stacking speed/>，/>；
Obtaining the sectional area of the second row material pile of the second layer through model measurementMeasuring to obtain the volume/>Find the stacking amount/>Find the first layer stacking speed/>，/>；
The cross section area of the first row material pile of the third layer is measured by a modelMeasuring to obtain the volume/>Find the stacking amount/>Find the first layer stacking speed/>，/>；
The cross section area of the second row material pile of the third layer is measured by a modelMeasuring to obtain the volume/>Find the stacking amount/>Find the first layer stacking speed/>，/>；
The sectional area of the fourth layer of material pile is determined to be consistent with the sectional area of the second layer of material pile according to the measured size of the sectional area of the model, and the sectional area of the fifth layer of material pile is consistent with the sectional area of the third layer of material pile, and the like, the odd layers are consistent with the even layers;
Regulating and controlling the thickness parameter of each layer by a parameterized model Per column stack spacing/>The stacking speed of each layer and each column under different thicknesses can be obtained quickly.
The step S10 specifically comprises the following steps: the motor frequency is set to be a plurality of intervals, so that the travelling speed of the stacker is divided into a plurality of speeds, the initial stacking speed is the maximum speed, the initial stacking speed is gradually decreased along with the continuous increase of the material layers, the thickness of each layer of the material stack is equal, the thickness of the material layers is ensured to be approximately equal to the material granularity of the materials, and therefore the ideal maximization of the number of the material stacks can be realized.
Firstly, a stacking path is determined, stacking is carried out by adopting a stacking mode which is different from a common long pre-homogenized stacking field and is used for increasing the cross section area and the length of the stacking field at the same time, and a stacking mode of a commonly used stacking machine at present is a single-line mode no matter whether the stacking mode is a single-person mode, a multi-person mode or a wave mode.
Secondly, determining a stacking method, wherein the mixing effect of materials can be generally obtained by using a mixing ratioRepresenting the segregation degree/>, i.e. the content of the material before mixingWith the content segregation degree/>, after mixingThe ratio of/>, i.e. On the same material taking interface, the more the number of layers of the scraped materials, the better the mixing effect, the properly increased number of layers of the mixed stacking materials, the increased mixing ratio and the improved mixing effect. In order to obtain the optimal stacker homogenizing effect, a three-dimensional model of a stacker formed by the stacker method is built through BIM technology, the stacking travelling path, the stacker thickness, the layer number and the appearance are simulated, the stacker can obtain mutually nested stacker layers under the condition that the thickness of each stacker is consistent, the stacking layers can be obtained through the method, detailed views are shown in fig. 3 and 4, the schematic diagram of the cross section of the stacker is shown in fig. 3, and the schematic diagram of the longitudinal section of the stacker is shown in fig. 4. Intercepting the most representative material pile straight section parameterized model, directly counting and measuring the material pile cross section area and volume of each layer by means of a special area and volume rapid measurement method in the model, and extracting and simplifying a calculation formula of the material pile through data statistics so as to achieve the best material pile control method.
The above examples merely illustrate specific embodiments of the application, which are described in more detail and are not to be construed as limiting the scope of the application. It should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the technical idea of the application, which fall within the scope of protection of the application.
Claims (7)
1. The multi-line uniform-layer continuous circulation type stacker homogenization method is characterized by comprising the following steps of:
s1: preliminary planning is carried out on the use of the material yard by the site condition of the material yard, the total material piling amount, the material characteristics and the geometric parameters of the material yard, and the overall shape of the material yard is determined;
S2: determining a layer of material pile height of the material pile;
s3: determining the thickness of a second layer and a layer above the second layer of the material stack;
s4: confirming the total layer number of the material pile;
s5: determining a first row material pile width of a first layer of material piles and a spacing of each row of material piles when the material piles are integrally piled;
S6: determining the total column number of the material pile;
S7: in a stacking area, a first layer of material stack is formed from a starting point of stacking operation to a stacking machine reaching a stacking operation end point, then the original end point is switched to the starting point, the stacking machine runs reversely along an original path, continues stacking to reach the original starting point to form a second layer of material stack, and then the stacking operation is performed repeatedly in a circulating mode, the middle is uninterrupted, and the circulating stacking is not only in a plane but also in a vertical plane;
S8: modeling in BIM software, generating a parameterized model of a stockpile, and simulating the stockpile through the interaction function of Inventor software and Revit;
S9: rapidly obtaining the stacking speed of each layer and each column under different thicknesses through model calculation;
s10: the stacker obtains different vehicle speeds by using a double-speed motor and a variable-frequency speed-regulating motor to ensure that the stacking amount per unit length is constant.
2. The multi-line uniform layer continuous circulation type stacker leveling method according to claim 1, wherein the step S1 specifically comprises the following steps:
performing preliminary planning on a storage yard, and determining the following parameters:
determining the angle of repose of a material Volume weight/>；
Determining a stacking height according to material equipment；
Defining a stacking width according to a stacking field shapeAnd pile length/>；
Determining total pile quantity of material pile；
Confirming the stacking amount of the stacker。
3. The multi-line uniform layer continuous circulation type stacker leveling method according to claim 2, wherein the steps S2-S5 specifically comprise: the material piles are designed in a layered manner, and the initial material pile height of the material piles in the storage yard is as follows；
The thickness of the second layer of the material pile is consistent with that of the upper material pile, and each layer has the thickness of；
Determining the total layer number of the material pile asThe calculation formula of the total layer number of the material pile is as follows: /(I)；
Calculating the width of the first row of the first layer by the initial stackThe calculation formula is as follows: /(I)；
The interval of each row of material piles is when the material piles are integrally piledThe formula is/>Wherein/>Is the spacing between adjacent stacks.
4. The method for homogenizing multi-linear uniform layer continuous circulation type stacking according to claim 3, wherein the step S6 specifically comprises the following steps: total column number of stockpiles isStacking column number/>The calculation formula of (2) is as follows: /(I)。
5. The method for homogenizing a multi-linear uniform layer continuous circulation type stacker as claimed in claim 4, wherein the step S7 specifically comprises the following steps:
In a stacking area, a point A is a starting point of stacking operation, when a stacker reaches a stacking operation end point B, a first layer of material stack is formed, then an original end point B is switched to a starting point, the stacker runs reversely along an original path, stacking is continued to reach an original starting point A, a second layer of material stack is formed, then the stacking operation is performed repeatedly in a circulating mode, the middle is uninterrupted, and the circulating stacking is not only in a plane but also in a vertical plane until the requirement of storage capacity is met;
The first layer is used as the bottom layer material when stacking, the thickness of each layer is consistent from the second layer, the first stacking amount of the first layer is calculated and defined as Find the first layer stacking speed, defined as/>The calculation formula is as follows: /(I)；
。
6. The method for homogenizing a multi-linear uniform layer continuous circulation type stacker as claimed in claim 5, wherein the step S9 specifically comprises the following steps:
the section area of the first row material pile of the second layer is obtained through model measurement Measuring to obtain the volume/>Find the stacking amount/>Find the first layer stacking speed/>，/>；
Obtaining the sectional area of the second row material pile of the second layer through model measurementMeasuring to obtain the volume/>Find the stacking amount/>Find the first layer stacking speed/>，/>；
The cross section area of the first row material pile of the third layer is measured by a modelMeasuring to obtain the volume/>Find the stacking amount/>Find the first layer stacking speed/>，/>；
The cross section area of the second row material pile of the third layer is measured by a modelMeasuring to obtain the volume/>Find the stacking amount/>Find the first layer stacking speed/>，/>；
The sectional area of the fourth layer of material pile is determined to be consistent with the sectional area of the second layer of material pile according to the measured size of the sectional area of the model, and the sectional area of the fifth layer of material pile is consistent with the sectional area of the third layer of material pile, and the like, the odd layers are consistent with the even layers;
Regulating and controlling the thickness parameter of each layer by a parameterized model Per column stack spacing/>The stacking speed of each layer and each column under different thicknesses can be obtained quickly.
7. The method for homogenizing a multi-linear uniform layer continuous circulation type stacker of claim 6, wherein the step S10 specifically comprises the following steps: the motor frequency is set to be a plurality of intervals, so that the travelling speed of the stacker is divided into a plurality of speeds, the initial stacking speed is the maximum speed, the initial stacking speed is gradually decreased along with the continuous increase of the material layers, the thickness of each layer of the material stack is equal, and the thickness of the material layers is equal to the material granularity of the materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202410452857.0A CN118047234B (en) | 2024-04-16 | 2024-04-16 | Multi-line uniform-layer continuous circulation type stacking homogenization method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724506A (en) * | 2015-04-14 | 2015-06-24 | 上海东源计算机自动化工程有限公司 | Automatic stacking/reclaiming system for bulk cargo storage yard |
| CN114873298A (en) * | 2022-06-17 | 2022-08-09 | 上海冉青信息技术有限公司 | Bulk cargo storage yard and loading and unloading method of bulk cargo |
| CN116043007A (en) * | 2023-01-31 | 2023-05-02 | 马鞍山钢铁股份有限公司 | Method for mixing and stacking ore |
| CN220182208U (en) * | 2023-07-25 | 2023-12-15 | 成都建筑材料工业设计研究院有限公司 | Self-dedusting cantilever stacker |
| CN117303017A (en) * | 2023-11-08 | 2023-12-29 | 东北大学 | Method for process selection, digital realization and simulation evaluation of bucket-wheel stacker-reclaimer |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724506A (en) * | 2015-04-14 | 2015-06-24 | 上海东源计算机自动化工程有限公司 | Automatic stacking/reclaiming system for bulk cargo storage yard |
| CN114873298A (en) * | 2022-06-17 | 2022-08-09 | 上海冉青信息技术有限公司 | Bulk cargo storage yard and loading and unloading method of bulk cargo |
| CN116043007A (en) * | 2023-01-31 | 2023-05-02 | 马鞍山钢铁股份有限公司 | Method for mixing and stacking ore |
| CN220182208U (en) * | 2023-07-25 | 2023-12-15 | 成都建筑材料工业设计研究院有限公司 | Self-dedusting cantilever stacker |
| CN117303017A (en) * | 2023-11-08 | 2023-12-29 | 东北大学 | Method for process selection, digital realization and simulation evaluation of bucket-wheel stacker-reclaimer |
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