CN114074849A - Pre-homogenization stockpiling method and system for primary stock ground - Google Patents
Pre-homogenization stockpiling method and system for primary stock ground Download PDFInfo
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Abstract
The invention discloses a method and a system for pre-homogenizing a stockpile in a primary stock ground, which comprises the steps of preliminarily planning the use of the stockpile ground and geometric parameters of the stockpile; determining blanking point positions by determining the stock pile height limit of the geometric parameters of the stock pile and performing layered design on the stock pile; and after the blanking point positions are confirmed, determining a stacking track by combining the stacking mode of fixing the end position of the stacker in the stacking process of each blanking point. The invention can homogenize the components of the raw materials by a pre-homogenization stacking mode, reduce the quality fluctuation, provide long-term stable raw materials for factories, and also can prepare the raw materials with different components in a storage yard to form a storage yard to be prepared so as to create conditions for stable production and improvement of the equipment operation rate.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to a method and a system for pre-homogenizing stockpiles in a primary stock yard.
Background
In the production of sintered ore in the iron-making industry, the raw material mixing is to mix a plurality of raw materials according to the proportion, so that the whole components and the particle size are homogenized, the method has important significance for improving the quality of the sintered ore, reducing the energy consumption and continuously producing, and is an important condition for ensuring smooth production of a blast furnace and ensuring high quality and yield, energy conservation and emission reduction technical indexes. Particularly, under the current conditions that the capacity of the steel industry is seriously surplus and the ore resources are gradually depleted, high-quality mineral resources are gradually scarce, and in order to reduce the production cost, all steel enterprises purchase ores with relatively complex components, volatility and relatively low price to a certain extent to carry out uniform mixing production. The existing blending and mixing device is high in construction cost, high in maintenance cost and strict in requirements on an erection site, and particularly, the processing of each raw material with large gradient granularity level and large component fluctuation is more complicated.
Most iron and steel enterprises focus on the attention point and index control of the blending process on the stockpiling method of the secondary stock ground, the research on the primary stock ground is not intensive, and the successful method of the secondary stock ground is directly applied to the primary stock ground with too low production cost performance. For a common primary rectangular stock yard, a mode that a fixed point position is piled to a preset maximum height at one time and then a stacker is moved to continue stacking is adopted in the stacking process of the conventional primary stock yard, and the segregation degree of material particles is inevitably serious by the method.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above-mentioned conventional problems.
Therefore, the invention provides a method for pre-homogenizing a material pile in a primary stock ground, which can realize the pre-homogenization of the particle size of bulk materials, refine the whole production process and share the indexes accumulated in a single procedure to realize pressure.
In order to solve the technical problems, the invention provides the following technical scheme: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
preliminarily planning the use of a stockpile field and geometrical parameters of the stockpile; determining blanking point positions by determining the stock pile height limit of the geometric parameters of the stock pile and performing layered design on the stock pile; and after the blanking point positions are confirmed, determining a stacking track by combining the stacking mode of fixing the end position of the stacker in the stacking process of each blanking point.
As a preferable embodiment of the method for pre-homogenizing the stockpile in the primary stockyard, the method comprises the following steps: the step of determining the blanking point position comprises the steps of optimizing the original method from one-time stacking to height limitation according to a pre-homogenization thought, and splitting a large material pile stacking process into multiple small material pile stacking processes; determining the height limit H of the material pile by using factors such as the natural stacking angle of the bulk material, the area of the material yard, the working elevation limit of a material piling and taking machine and the like; the small material pile is designed in a layered mode, the number of layers is defined to be K, and therefore the height of the local small material pile is as follows:
h＝H/K
and determining the radius r of the conical bottom surface of the small material pile as h/tan theta by using the natural bulk material stacking angle theta.
As a preferable embodiment of the method for pre-homogenizing the stockpile in the primary stockyard, the method comprises the following steps: the pre-homogenizing includes homogenizing the windrow components by a method of horizontal layering and vertical cutting. As a preferable embodiment of the method for pre-homogenizing the stockpile in the primary stockyard, the method comprises the following steps: the natural bulk stacking angle comprises the maximum angle at which the bulk can keep a natural stable state when stacked; after the angle is formed, the bulk materials are piled up and naturally slide down.
As a preferable embodiment of the method for pre-homogenizing the stockpile in the primary stockyard, the method comprises the following steps: the blanking point also comprises the steps of measuring the size information of the stock yard field, constructing a three-dimensional coordinate system in the stock yard, and determining the relative coordinates of each blanking point in the coordinate system; combining the geographic coordinate information of the stock ground coordinate system reference point measured by the GPS equipment; solving the coordinates of each blanking point in a WGS-84 coordinate system by using coordinate transformation; real-time differential GPS equipment is additionally arranged at the blanking end part of the stacker, so that real-time positioning control of blanking point positions is realized.
As a preferable embodiment of the method for pre-homogenizing the stockpile in the primary stockyard, the method comprises the following steps: the WGS-84 coordinate system comprises that the origin is the center of mass of the earth, and the Z axis of the space rectangular coordinate system points to the earth polar direction defined by BIH.
As a preferable embodiment of the method for pre-homogenizing the stockpile in the primary stockyard, the method comprises the following steps: the stacker comprises a solid laser radar device which is additionally arranged at the blanking end part of the stacker, so that the real-time scanning of the charge level is realized, and the picture is transmitted back to an operation room monitoring screen to be fed back to an operator.
As a preferable embodiment of the method for pre-homogenizing the stockpile in the primary stockyard, the method comprises the following steps: the stacking point track comprises a stacking point array design which is designed by standard row-column distribution on the basis of not changing the original distribution of the blanking points and the track design logic, and a stacking arm is simply rotated by taking a stacker base as a central shaft to form a stacking point arrangement scheme with an arc-shaped row direction.
As a preferable embodiment of the method for pre-homogenizing the stockpile in the primary stockyard, the method comprises the following steps: the positioning control comprises the step of assisting in further controlling the blanking point position by installing a coaxial angle measuring coded disc on a rotating shaft of the main frame.
The invention also provides the following technical scheme: one preferred scheme of the pre-homogenizing stock pile system of the primary stock ground comprises a planning module, a pre-homogenizing stock pile module and a pre-homogenizing stock pile module, wherein the planning module is used for performing primary planning on the use of the stock pile ground and the geometric parameters of the stock pile; the blanking point determining module is connected with the planning module and is used for determining the plane coordinates of the blanking point in a plane coordinate system (X, Y); the stacking track module is connected with the blanking point determining module and used for planning the blanking end part track of the stacker and finishing stacking according to the planning logic, and the simplifying module is connected with the stacking track module and used for simplifying the design of the blanking point track and the positioning control scheme of the blanking point position.
The invention has the beneficial effects that: the invention can homogenize the components of the raw materials by a novel pre-homogenization stacking mode, reduce the quality fluctuation and has strong adaptability to viscous and wet materials; the method provides long-term stable raw materials for factories, and can also blend raw materials with different components in a storage yard to form a storage yard to be blended so as to create conditions for stable production and improvement of equipment operation rate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic flow chart of a method for pre-homogenizing stockpiles in a primary stock yard according to a first embodiment of the present invention;
fig. 2 is a schematic three-view diagram of a primary stockpile blanking point location and a track design of a pre-uniformizing stockpile method of a primary stock ground according to a first embodiment of the present invention;
FIG. 3 is a simplified design layering diagram of the primary pile blanking point location and trajectory of a pre-homogenized pile system of a primary yard according to a second embodiment of the present invention;
FIG. 4 is a simplified design layering diagram of the primary pile blanking point location and trajectory of a pre-homogenized pile system of a primary yard according to a second embodiment of the present invention;
FIG. 5 is a schematic diagram showing the distribution of the modular structure of a pre-homogenization stockpile system of a primary stock ground according to a second embodiment of the invention;
fig. 6 is a schematic diagram of a network topology of a pre-homogenization stockpile system of a primary stock ground according to a second embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below, and it is apparent that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially in general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Meanwhile, in the description of the present invention, it should be noted that the terms "upper, lower, inner and outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and operate, and thus, cannot be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The terms "mounted, connected and connected" in the present invention are to be understood broadly, unless otherwise explicitly specified or limited, for example: can be fixedly connected, detachably connected or integrally connected; they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1 to 2, a first embodiment of the present invention provides a method for pre-homogenizing a stockpile in a primary stockyard, including:
s1: and preliminarily planning the use of the stockpile field and the geometric parameters of the stockpile through the field conditions of the stockpile field, the physical parameters of the bulk materials and the total amount of the bulk materials.
S2: and determining the blanking point position by determining the height limit of the material pile and carrying out layered design on the material pile.
According to a pre-homogenization thought, namely, the components of the piled materials are homogenized by a method of horizontal layering stacking and vertical cutting, the original method from one-time piling to height limitation is optimized, and the large material pile is split into a plurality of small material pile stacking processes in one-time piling process;
determining the height limit H of the material pile by using factors such as the natural stacking angle of the bulk material, the area of the material yard, the working elevation limit of a material piling and taking machine and the like;
the small material pile is designed in a layered mode, the number of layers is defined to be K, and therefore the height of the local small material pile is as follows:
h＝H/K
and determining the radius r of the conical bottom surface of the small material pile as h/tan theta by using the natural bulk material stacking angle theta.
It should be noted that the natural bulk cargo stacking angle θ is the maximum angle at which the bulk cargo can be kept in a natural stable state when stacked;
after the angle is formed, the bulk materials are piled up and naturally slide down.
Specifically, as further illustrated in fig. 2, the radius of the bottom surface of the cone of the small pile is determined by combining the natural bulk cargo stacking angle θ (in fig. 2, θ is 60 ° as an example) to determine the radius of the bottom surface of the cone of the small pile
In conjunction with the stock ground width W (in the present invention, W is 8r as an example in fig. 2), the first layer height h in the planar coordinate system (X, Y) shown in fig. 2 is obtained, wherein the planar coordinates of the first row of the blanking points are (r, r), (3r, r), (5r, r), (7r, r); a second layer height 2h, wherein the feeding point plane coordinates of the first row are (2r,2r), (4r,2r), (6r,2 r); the height of the third layer is 3h, wherein the plane coordinates of the blanking points in the first row are (3r,3r), (5r,3 r); and the height of the fourth layer is 4h, the plane coordinates of the blanking points in the first row are (4r,4r), and the like.
S3: and after the blanking point positions are confirmed, determining a stacking track by combining the stacking mode of fixing the end position of the stacker in the stacking process of each blanking point.
Measuring size information of a stock yard field, constructing a three-dimensional coordinate system in the stock yard, and determining relative coordinates of each blanking point in the coordinate system;
combining the geographic coordinate information of the stock ground coordinate system reference point measured by the GPS equipment;
solving the coordinates of each blanking point in a WGS-84 coordinate system by using coordinate transformation;
in the WGS-84 coordinate system, the origin is the earth's centroid, and the Z-axis of the spatial rectangular coordinate system points in the earth's polar direction defined by the BIH.
Real-time differential GPS equipment is additionally arranged at the blanking end part of the stacker, so that real-time positioning control of blanking point positions is realized.
Solid-state laser radar equipment is additionally arranged at the blanking end part of the stacker, so that the real-time scanning of the charge level is realized, and the picture is transmitted back to an operation room monitoring screen and is fed back to an operator.
On the basis of not changing the original blanking point distribution and track design logic, the blanking point array design of the standard row-column distribution is simply changed into a scheme of forming an arc-shaped stacking point arrangement in the row direction by taking a stacker base as a central shaft to rotate a stacking arm.
The coaxial angle measuring coded disc is mounted on the main frame rotating shaft, so that the blanking point position is further controlled in an auxiliary mode.
Specifically, taking the number K of material layers as 4 as an example, the number of the minimum material stacks from the stack to the fourth layer at least needs to be ensured to be not less than 4 along the X axis and the Y axis. The route is shown in the sequence of numerical marks in fig. 2, firstly the height of the stacker is set as h to stack a first layer, after the stacking of the first layer is completed by positioning point by point along the X axis (marks 1 to 4), the stacker moves to a second line (marks 4 to 5) of the layer along the Y axis, and reversely stacks the second line (marks 5 to 8) along the X axis, and so on until the fourth layer is stacked (marks 8 to 9, 9 to 12, 12 to 13, and 13 to 16). After the small material piles with the minimum row number of the first layer are stacked, the stacker is lifted to 2h, the end of the stacker is moved to the first row of the second layer to start stacking along the X axis (the reference numerals are 16 to 17), so that the problem that the arm frame of the stacker collides with the material surface when stacking materials in the same layer is avoided, similarly, the second layer of stacking materials (the reference numerals are 17 to 19, 19 to 20, 20 to 22, 22 to 23 and 23 to 25) are completed according to the rule of the first layer, and by parity of reasoning, the stacker is gradually lifted to complete the third layer and the fourth layer of stacking materials (the reference numerals are 25 to 26, 26 to 29 and 29 to 30). And (3) subsequently, unfolding the stacking material close to the triangular end face of the material stack along the Y-axis direction, lowering the height of the stacking machine to h, starting from the first layer (the reference number is 30 to 31), after one row is stacked (the reference numbers are 31 to 34), lifting the stacking machine to the second layer (the reference numbers are 34 to 35) nearby, completing the stacking of the second layer (the reference numbers are 35 to 37), and so on, completing the stacking of the third layer and the fourth layer (the reference numbers are 37 to 40). And then, stacking is completed according to the stacking logic.
Table 1: and comparing the content measurement results of the magnetite.
| Sample numbering | 1 | 2 | 3 | 4 | 5 |
| Pre-homogenization group | 93.5％ | 95％ | 94.1％ | 94.3％ | 98.5％ |
| Legacy group | 80.7％ | 93.4％ | 81％ | 91.5％ | 82.6％ |
The measured value is between 91% and 96%, the qualification rate of the pre-homogenization group is 80% at the moment, and the qualification rate of the traditional group is 40%, so that the quality of the product is greatly improved.
Preferably, the invention ensures balanced and stable production, and plays an important role in improving the product quality and the production efficiency, reducing the energy consumption and safely operating for a long time. By adopting the pre-homogenization technology, the stockpiling which is difficult to utilize in the past can be utilized, the resource utilization range is expanded, the segregation degree of the material is obviously reduced, and the problem that the arm support of the stockpiling machine collides the material surface when the stockpiling is carried out in the same layer is avoided.
Example 2
Referring to fig. 3 to 6, a second embodiment of the present invention, which is different from the first embodiment, provides a pre-homogenized pile system of a primary stock ground, including:
the planning module 100 is used for primarily planning the use of a stockpile field and geometric parameters of the stockpile;
the blanking point determining module 200 is connected to the planning module 100, and is configured to determine a planar coordinate of a blanking point in a planar coordinate system (X, Y);
the stacking track module 300 is connected to the blanking point determining module 200, and is configured to plan a blanking end track of the stacker and complete stacking according to a planning logic.
The simplification module 400 is connected to the stacking trajectory module 300, and is used for simplifying the design of the blanking point trajectory and the positioning control scheme of the blanking point location.
Specifically, as shown in fig. 3, taking the total layer number K as 4 as an example, the first point of the first row is a small circle center (the reference number 1 corresponds to a blanking point) where R is a radius and is tangent to the two XY axes, the stacking points in the same row are distributed along an arc which takes M as a center and takes the arm length R as a radius (for example, in the first row, the reference numbers 1, 2, 3, and 4 are distributed on an arc which takes M11 as a center and takes a dotted line R as a radius), and the distance between the centers of every two stacking points is 2R (for example, in the first row, the distance between every two of the reference numbers 1, 2, 3, and 4 is 2R). In the same-layer stacking process, after each row-wise stacking is completed, the stacker base moves 2r along the Y axis (for example, in the first layer, the distance between every two of M11, M12, M13, M14 and M15 is 2r), and the next row-wise stacking of the same layer is started nearby (for example, in the first layer, the numbers are 4 to 5, 8 to 9 and 12 to 13). When the material is switched to the material piling of the adjacent upper material layer (for example, in the first layer and the second layer, the label 16 is raised by h and moved to 17), because the length of the material arm is unchanged, the method before the same principle is selected for the initial point of the base, and the distance between the initial point of the base and the initial point of the lower material layer along the Y axis is r (for example, in the first layer and the second layer, the distance between M11 and M21 is r), so that the mutual penetration of the arc-shaped tracks of the material piling between the adjacent material layers is ensured, and the material piling filling and the particle size segregation inhibition are completed. The position of a blanking point of the top left corner of each layer, which is closest to the point o of the coordinate center, such as the initial blanking point of the first line of the first layer, is uniformly distributed on the large arc of the first line of the current layer, and a secant section with the length of k times is made from the intersection point of the large arc and the Y axis according to the number k of the current layer, so that the position of the blanking point is obtained (such as in the second layer, the blanking point corresponding to the number 17 is the intersection point of a small dotted line circle and the large arc, wherein the circle center of the small dotted line circle is positioned on the large arc, and the radius of the small dotted line circle is r and is tangent to the Y axis). By analogy, the smallest four-layer pile stacking (reference numerals 1 to 30) can be completed. And (5) performing subsequent stacking, similarly to the previous scheme, unfolding the stacking material along the Y-axis direction close to the concave triangular end face of the stacking material (the reference number 30 is reduced to 31, and 31 to 34, 34 to 35, 35 to 37, 37 to 38, 38 to 39 and 39 to 40 are completed layer by layer).
The simplified design scheme is different from the original scheme in that the moving frequency of the base of the stocker is relatively low, and in the process of stacking in the same row, the material arm rotates around the main support of the base of the stocker to perform point position switching.
Preferably, the invention aims at partial primary stockyard with relatively old equipment, the blanking point track is simplified and designed, the aggravation of facility loss caused by frequent movement of the stocker on the track is reduced, and the stocking efficiency of the stocker and the service life of the facility are improved.
It should be recognized that embodiments of the present invention can be realized and implemented by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable storage medium configured with the computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, according to the methods and figures described in the detailed description. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Further, the operations of processes described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described herein (or variations and/or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) collectively executed on one or more processors, by hardware, or combinations thereof. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable interface, including but not limited to a personal computer, mini computer, mainframe, workstation, networked or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and the like. Aspects of the invention may be embodied in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optically read and/or write storage medium, RAM, ROM, or the like, such that it may be read by a programmable computer, which when read by the storage medium or device, is operative to configure and operate the computer to perform the procedures described herein. Further, the machine-readable code, or portions thereof, may be transmitted over a wired or wireless network. The invention described herein includes these and other different types of non-transitory computer-readable storage media when such media include instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. The invention also includes the computer itself when programmed according to the methods and techniques described herein. A computer program can be applied to input data to perform the functions described herein to transform the input data to generate output data that is stored to non-volatile memory. The output information may also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including particular visual depictions of physical and tangible objects produced on a display.
As used in this application, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being: a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of example, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A method for pre-homogenizing stockpiling in a primary stock ground is characterized by comprising the following steps: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
preliminarily planning the use of a stockpile field and geometrical parameters of the stockpile;
determining blanking point positions by determining the stock pile height limit of the geometric parameters of the stock pile and performing layered design on the stock pile;
and after the blanking point positions are confirmed, determining a stacking track by combining the stacking mode of fixing the end position of the stacker in the stacking process of each blanking point.
2. The method for pre-homogenizing the stockpile in the primary stockyard according to claim 1, wherein: the determining of the blanking point position comprises the following steps of,
according to the pre-homogenization thought, the original method from one-time stacking to height limitation is optimized, and a large material pile is divided into a plurality of small material pile stacking processes in one-time stacking process;
determining the height limit H of the material pile by using factors such as the natural stacking angle of the bulk material, the area of the material yard, the working elevation limit of a material piling and taking machine and the like;
the small material pile is designed in a layered mode, the number of layers is defined to be K, and therefore the height of the local small material pile is as follows:
h＝H/K
and determining the radius r of the conical bottom surface of the small material pile as h/tan theta by using the natural bulk material stacking angle theta.
3. The method for pre-homogenizing a stockpile in a primary stockyard according to claim 2, wherein: the pre-homogenizing comprises the steps of,
the stacking components are homogenized by a method of horizontal layering stacking and vertical cutting.
4. The method for pre-homogenizing a stockpile in a primary stockyard according to claim 3, comprising: the natural bulk cargo pile angle comprises that,
the bulk materials can keep the maximum angle of a natural stable state when being stacked;
after the angle is formed, the bulk materials are piled up and naturally slide down.
5. The method for pre-homogenizing the stockpile in the primary stockyard according to claim 4, wherein: the blanking point also comprises a feeding device,
measuring size information of a stock yard field, constructing a three-dimensional coordinate system in the stock yard, and determining relative coordinates of each blanking point in the coordinate system;
combining the geographic coordinate information of the stock ground coordinate system reference point measured by the GPS equipment;
solving the coordinates of each blanking point in a WGS-84 coordinate system by using coordinate transformation;
real-time differential GPS equipment is additionally arranged at the blanking end part of the stacker, so that real-time positioning control of blanking point positions is realized.
6. The method for pre-homogenizing the stockpile in the primary stockyard according to claim 5, wherein: the WGS-84 coordinate system includes,
the origin is the earth's centroid, and the Z-axis of the spatial rectangular coordinate system points in the polar direction defined by the BIH.
7. The method for pre-homogenizing the stockpile in the primary stockyard according to claim 6, wherein: the stocker comprises a first storage tank, a second storage tank,
solid-state laser radar equipment is additionally arranged at the blanking end part of the stacker, so that the real-time scanning of the charge level is realized, and the picture is transmitted back to an operation room monitoring screen and is fed back to an operator.
8. The method for pre-homogenizing a stockpile in a primary stockyard according to claim 7, comprising: the stockpiling point track comprises the following steps of,
on the basis of not changing the original blanking point distribution and track design logic, the blanking point array design of the standard row-column distribution is simply changed into a scheme of forming an arc-shaped stacking point arrangement in the row direction by taking a stacker base as a central shaft to rotate a stacking arm.
9. The method for pre-homogenizing a stockpile in a primary stockyard according to claim 8, comprising: the positioning control includes the steps of,
the coaxial angle measuring coded disc is mounted on the main frame rotating shaft, so that the blanking point position is further controlled in an auxiliary mode.
10. A pre-homogenizing stock pile system of a primary stock ground is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the planning module (100) is used for primarily planning the use of the stockpile field and the geometric parameters of the stockpile;
the blanking point determining module (200) is connected with the planning module (100) and is used for determining the plane coordinates of the blanking point in a plane coordinate system (X, Y);
the stacking track module (300) is connected with the blanking point determining module (200) and is used for planning the blanking end track of the stacker and finishing stacking according to the planning logic.
The simplifying module (400) is connected with the stacking track module (300) and is used for simplifying the design of the blanking point track and the positioning control scheme of the blanking point.
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