Development and Extension Method for the Synergistic Matching of Coal and Associated Mineral Production Systems
Through geological exploration, demarcation of ore bodies, analyzing feasibility, formulating design principles and establishing a collaborative management system, the problem of poor connection between multi-orch production systems in traditional methods is solved, and efficient coordinated mining of coal and allogeneic symbiotic minerals is achieved and the resource utilization is maximized.
Patent Information
- Application Number
- CN202210843749.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-07-18
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2042-07-18
AI Technical Summary
The traditional pioneering extension method has failed to effectively connect with the differentiated production system of multi-mineral species, resulting in the coordinated mining needs of coal and allogeneic symbiotic minerals being difficult to meet, and the maximum utilization of resources cannot be achieved.
Through geological exploration, demarcation of ore bodies, analyzing feasibility, determining design principles, formulating development extension plans and establishing a collaborative management system, a collaborative matching method for coal and allogeneic symbiotic mineral production systems is constructed, taking into account the impact of mining and the differences in the production system, and optimizing the construction technology to achieve the connection and matching of multiple ores.
It has achieved efficient connection and matching of multi-mineral production systems, improved the safety and economy of development and extension, ensured the coordinated mining of coal and allogeneic symbiotic minerals, and improved the resource recovery rate and the operation efficiency of the production system.
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Figure CN115263302B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of coal and associated minerals development in coal measures, and particularly relates to a development and extension method for the coordinated matching of coal and alien symbiotic mineral production systems. Background Art
[0002] In China's continuous and rapid social and economic development, the demand for energy resources has gradually increased. Coal is the most important domestic energy supply source. At the same time, there are various types of associated minerals in coal measures with rich reserves. Therefore, it is necessary to carry out coordinated mining of coal and associated minerals, improve resource recovery rate, comprehensively utilize mineral resources, and maximize the development value.
[0003] Alien symbiotic minerals refer to minerals in the same ore deposit or mining area, in different spatial positions, ore blocks, or sections, where another useful component or multiple useful components reach industrial grade, or although they do not reach industrial grade but have reached above the cut-off grade. After demonstration, comprehensive industrial indicators can be formulated, and the ore bodies can be separately outlined. The occurrence states and mining methods of coal and alien symbiotic minerals are quite different, so they have their own different production systems. At the same time, traditional development and extension methods only consider the design principles such as the production capacity and geological conditions of a single ore type, without considering the mutual matching between different production systems of multiple ore types, ignoring the mutual influence between the mining of multiple ore types, resulting in the inability to well connect the production systems of different ore types and unable to meet the requirements of coordinated mining. Therefore, in order to construct a coordinated mining production system for coal and coal measures minerals, a new development and extension method suitable for the coordinated mining of coal measures mineral resources is needed. Through this development and extension method, the respective production systems of coal mines and alien symbiotic minerals can be connected and integrated, so that the two are organically unified to form a coordinated mining production system for coal and alien symbiotic minerals.
[0004] The establishment of a coordinated mining production system for coal and alien symbiotic minerals is of great significance for maximizing the development value of coal measures mineral resources. The determination of the development and extension method is the key to constructing a coordinated mining production system. A suitable development and extension method can, to a certain extent, reduce the early production cost and improve the operation efficiency of the production system. Summary of the Invention
[0005] Aiming at the above-mentioned existing technical deficiencies, the purpose of the present invention is to provide a development and extension method for the coordinated matching of coal and alien symbiotic mineral production systems. Through preliminary geological exploration, considering the differences in the occurrence characteristics and mining methods of coal and alien symbiotic minerals, with the weakening of mining influence and the coordinated matching of production systems as the design principles, a development and extension and coordinated management system for alien symbiotic minerals is constructed to improve the generality of the method.
[0006] To solve the above technical problems, the present invention adopts the following technical solutions:
[0007] The present invention provides a development and extension method for the coordinated matching of a coal and associated mineral production system, comprising the following steps:
[0008] S10. Conduct geological exploration: Collect hydrogeological information of the mining area through exploration boreholes and other means in the coordinated mining area, including the occurrence horizons of coal seams and associated minerals, groundwater levels, lithology of the exploration horizons, and in-situ stress.
[0009] S20. Define the ore bodies of associated minerals: On the basis of geological exploration, delimit the spatial scope of the associated ore bodies, and determine the occurrence of the ore bodies to provide a basis for formulating the development and extension plan.
[0010] S30: Analyze the feasibility of development and extension: Based on the above geological condition data, study the feasibility of subsequent development and extension of the original roadway system during the underground co-mining of associated minerals, and analyze the sharing and the safety and stable service guarantee capabilities of the original mine industrial square, tunneling, transportation, ventilation, storage, drainage, and monitoring facilities.
[0011] S40: Determine the design principles for development and extension: In view of the occurrence characteristics of different ore types and considering the differences in production systems, put forward the design principles for the position and spatial layout of the breakthrough points of the development and extension projects with complex and changeable geology, super-large variable cross-sections, and multiple branch roadways, and reduce the influence of mining on the development and extension roadways.
[0012] S50: Formulate the development and extension plan: According to the above design principles, formulate a suitable development and extension plan, including the development and extension method, the connection position, and the layout form of the development and extension roadways.
[0013] S60: Evaluate the matching of the production system and optimize it: Evaluate the matching of the development and extension production system, study the matching evaluation and optimization decision-making of the coal series associated mineral production system, and put forward the construction technology for the matching transformation of the development and extension of coal and associated minerals.
[0014] S70: Establish a collaborative management system: Establish a collaborative management system for the development and extension of coal and associated minerals, ensure the construction safety during the development and extension, improve the tunneling speed of the development and extension roadways, and stabilize the production capacity, so as to escort the successful construction of the development and extension system and the subsequent coordinated mining of coal and associated minerals.
[0015] Preferably, in step S10, in the collection of hydrogeological information using boreholes, the borehole density is determined according to the geological complexity, the drilling depth is not less than the burial depth of the main coal seam and associated minerals, and the hydrogeological information includes the horizons, lithology, structural features, stratigraphic contact relationships, and in-situ stress of the exploration strata.
[0016] Preferably, in step S20, the spatial scope of the associated ore bodies is delimited according to the corresponding industrial indexes, and the industrial indexes include mining grade and washability.
[0017] Preferably, in step S30, the evaluation of the feasibility of development and extension includes technical and economic aspects; technically, it mainly analyzes the matching of the coal and associated mineral production systems, and evaluates whether the various index capabilities of the coal mine production system can support the normal progress of the development and extension work and meet the stable production requirements of the subsequent associated minerals; economically, it mainly analyzes the manpower, material resources, and financial resources consumed by the development and extension, and evaluates whether it is economically feasible.
[0018] Preferably, in step S40, the design principles of development and extension need to consider the occurrence characteristics of different ore types and the possible impact on personal safety, such as the radioactivity of coal-type uranium deposits, and at the same time consider the variability of geological conditions, and try to reduce the complexity of the development and extension system and the driving engineering quantity of the development and extension roadway.
[0019] Preferably, in step S50, the development and extension methods include shaft development, inclined shaft development, and ramp development, but there will be specific development and extension methods for ore bodies with different occurrences, such as upper-reef shaft development and lower-reef inclined shaft development.
[0020] Preferably, in step S60, the production system includes a transportation system, a ventilation system, a drainage system, and a power supply system. Based on the development and extension plan, evaluate the connection and conversion of the coal mine and the associated mineral production systems, and check for omissions and deficiencies in the plan and optimize and improve it.
[0021] Preferably, in step S70, the collaborative management system for the development and extension of coal and associated minerals consists of a basic deposit information module, a three-dimensional deposit model module, a collaborative development constraint module, and an optimization plan module. Among them, the basic deposit information module includes basic mine information, hoisting and transportation systems, ventilation and drainage systems, equipment information, and personnel information; the three-dimensional deposit model module includes a coal mine ore body model, an associated ore ore body model, and a development and extension system model; the collaborative development constraint module includes mining influence constraints, laws and regulations constraints, production plan constraints, technical and economic constraints, and safety protection constraints; the optimization plan module is to optimize and improve the development and extension plan and the resource allocation plan.
[0022] The beneficial effects of the present invention are as follows: Aiming at the problem that the traditional development and extension methods only consider the design principles such as the production capacity and geological conditions of single ore types, do not involve the mutual connection and matching between different production systems of multiple ore types, and are difficult to meet the coordinated mining requirements of coal and associated minerals, the present invention aims at the occurrence characteristics and mining method differences of associated minerals, considers the mining influence, takes the collaborative matching of the production system as the design principle, and at the same time constructs a collaborative management system for the development and extension of associated minerals to improve the generality of the method. Through the implementation of the present technical invention, the coordinated mining of coal and associated minerals can be ensured to be carried out efficiently and safely. The main advantages of this method are:
[0023] (1) The connection and matching of the differential production systems for multiple ore types are realized. Based on geological exploration data, the differences in the production systems of coal and associated minerals are evaluated and the matching is calculated. Optimization countermeasures are proposed for the existing differences, and corresponding construction techniques for the matching transformation of the development and extension are formulated, thus realizing the connection and matching of the differential production systems for multiple ore types.
[0024] (2) A collaborative management system for the development and extension of coal and associated minerals is established. Based on the basic information of the mine, three-dimensional models of the ore body and the development system are established, realizing the visual management of the development and extension operations. At the same time, considering the technical and economic conditions and the characteristics of different ore types, constraint conditions are formed. On this basis, an optimization module is finally added to optimize the development plan and the resource allocation plan, generally improving the technical, economic and policy feasibility and ensuring the efficient and safe implementation of the development and extension operations. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.
[0026] Figure 1 Schematic diagram of the development and extension plan for coal and associated minerals provided in the embodiments of the present invention;
[0027] Figure 2 Schematic diagram of the collaborative management system for the development and extension of coal and associated minerals provided in the embodiments of the present invention;
[0028] LIST OF REFERENCE NUMERALS:
[0029] 10, associated ore body;
[0030] 20, associated mine shaft bottom yard;
[0031] 30, horizontal haulage roadway for coal mining;
[0032] 40, main decline;
[0033] 50, main crosscut;
[0034] 60, haulage roadway;
[0035] 70, horizontal track roadway for coal mining;
[0036] 80, return air decline;
[0037] 90, auxiliary decline. DETAILED DESCRIPTION
[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0039] Example 1: Using the coal-aluminum paragenesis area in Lüliang, Shanxi Province as an example, the implementation process of the development and extension method for the coordinated matching of coal and heterogeneous paragenesis mineral production systems is detailed. This area is rich in coal and aluminum resources, with an overall occurrence pattern of coal above and aluminum below. The main mining seam of the coal mine is located in the lower section of the Taiyuan Formation, with an average buried depth of approximately 280 meters and a lower elevation of approximately 55 meters from the bauxite layer. The coal seam thickness ranges from 9.84 to 13.42 meters, with an average of 12.35 meters, making it a stable and mineable coal seam in the well field. The bauxite deposits in the area are buried at depths ranging from 0 to 351 meters and occur in the middle and lower sections of the Benxi Formation of the Middle Carboniferous System, above the top erosion surface of the Fengfeng Formation of the Middle Ordovician System, with occurrence elevations of 836 to 1140 meters. The ore bodies exhibit a layered or quasi-layered spatial morphology, with an average thickness of 2.8 meters and a relatively continuous distribution. Bauxite and coal seams have similar occurrence patterns, generally being layered sedimentary minerals. In the coordinated underground mining of coal and bauxite, due to the differences in the ore body occurrence characteristics, mining methods, and production systems of the two, the existing development and extension methods of coal or bauxite cannot be directly applied to the development and extension of coal and bauxite. Therefore, it is necessary to adopt a development and extension method that coordinates the production systems to connect the production systems of coal and bauxite to achieve the goal of coordinated coal and aluminum mining.
[0040] The specific implementation steps of the development and extension method of the coordinated matching of coal and heterogeneous mineral production systems are as follows:
[0041] S10: Geological Exploration: In the coordinated coal and aluminum mining area, drilling is conducted from the surface or underground into the top and bottom strata of the coal seam and the top and bottom strata of the bauxite layer to obtain geological information. This includes determining the stratigraphic position, lithology, structural structure, stratigraphic contacts, pore water pressure, and geostress. Rock physical and mechanical properties of each stratum are tested based on the cores obtained from drilling. These rock physical and mechanical properties include density, color, porosity, permeability, crack density, crack connectivity, water swelling characteristics, compressive strength, tensile strength, cohesion, internal friction angle, elastic modulus, Poisson's ratio, and fracture toughness. The density of exploration boreholes is determined based on the complexity of the stratum structure, with a focus on faults, sinkholes, caverns, and other geological structures prone to water conduction. All boreholes are fully grouted during the drill back-out process.
[0042] S20: Demarcate the ore body of the symbiotic mineral: From the data obtained through the above geological exploration, it is known that the bauxite is located below the coal seam, with an average distance of 55 m from the coal seam. The spatial form of the ore body is layered or lenticular, with an average thickness of 2.8 m. The dip direction of the ore body is about 270°, and the dip angle is 10 - 18°, generally less than 15°, and the distribution is relatively continuous. The ore body is about 2700 m long from north to south and generally about 1110 m wide.
[0043] S30: Analyze the feasibility of development and extension: In terms of technical feasibility, both the coal mine and the bauxite are solid minerals, so they can both be mined by underground methods and share the same surface industrial square. Based on the original roadways of the coal mine, using the original rock roadway driving machinery and equipment of the coal mine, the development roadways can be driven to extend to the bauxite layer, and further construct the bauxite production system. The development roadways extending from the coal seam to the bauxite layer are all rock roadways, so the support difficulty is relatively low, and the original coal and rock roadway support technology of the coal mine can fully meet the support requirements during the development and extension process.
[0044] Since the bauxite ore body is layered, it is only necessary to develop a mining level similar to that of the coal mine downward from the coal mine, and the development complexity is relatively low. At the same time, the distance between the coal seam and the bauxite layer is small, and the length of the development roadways is short, so the ventilation difficulty is not great, and the ventilation capacity of the coal mine can also meet the requirements of the development and extension work. For the relatively small amount of development and extension work, the original transportation capacity of the coal mine can fully meet the requirements of material supply and waste rock discharge. For the waste water generated during the development process, it can be discharged to the surface through the original drainage system of the coal mine to avoid water disasters.
[0045] In terms of economic feasibility, a set of roadway engineering and facilities for the production system have been built during the original production of the coal mine level, and they can be fully utilized when developing and extending the bauxite mining level. This can reduce a considerable amount of engineering quantity and cost required for development and extension and shorten the construction time.
[0046] S40: Determine the design principles for development and extension: The development and extension method needs to be determined in combination with the occurrence of the symbiotic ore body and the production capacity of the mine. The construction technology of shaft development is relatively complex, but the production capacity is high and the adaptability is strong; the inclined shaft development is simple in construction, with a secondary production capacity and a large amount of roadway engineering; the ramp development needs to use trackless self-propelled equipment to transport materials and ores, with a low production capacity, a large amount of roadway engineering and a high maintenance difficulty.
[0047] On the basis of trying to avoid geological structures such as faults, folds, and collapse columns as much as possible, the layout form of the development roadways should be made as simple as possible to reduce the roadway driving engineering quantity, reduce the ventilation resistance, and improve the underground ventilation safety guarantee ability. In addition, the ventilation system of the driving roadways should be established as early as possible to create conditions for the simultaneous construction of multiple roadways.
[0048] The starting point of the development and extension roadway needs to be determined in combination with the original mine roadway system of the coal mine. Generally, the bottom yard of the coal mine or the main roadway at a certain level is selected as the starting point to facilitate the connection and integration of the production system. At the same time, as the production hub of the bauxite mine, the newly developed bottom yard of the bauxite mine should be preferably located at a position with better surrounding rock conditions in the center of the ore body to reduce the ventilation resistance, lower the transportation cost, and facilitate the excavation and maintenance of large-volume chambers.
[0049] S50: Formulate the development and extension plan: According to the above design principles, formulate a suitable development and extension plan, including the development and extension method, the connection position, the layout form of the development roadway, etc.
[0050] Through geological exploration, it can be known that the shape of the bauxite ore body 10 is similar to that of the coal seam, showing a layered or lenticular shape and being relatively continuous in distribution. According to the above design principles, considering that the distance between the coal seam and the bauxite ore layer is only 55m, the development method of the blind inclined shaft with lower construction difficulty is selected. When using the blind inclined shaft for extension, the mutual interference between production and construction is small, and the position, direction, inclination angle, and selection of hoisting equipment of the blind inclined shaft are not restricted by the original vertical shaft of the coal mine.
[0051] As Figure 1 shown, first determine the position of the bottom yard 20 of the bauxite mine. In order to shorten the transportation distance of bauxite ore and reduce the production cost, the bottom yard of the bauxite mine is arranged in the middle of the bauxite ore body 10. In this way, the transportation distance from the bauxite mining area to the bottom yard 20 of the bauxite mine will not be too large, thus reducing the transportation pressure on the trackless self-propelled equipment.
[0052] Then, develop the main blind inclined shaft 40 from the horizontal transportation main roadway 30 of the coal mine towards the position of the bottom yard 20 of the lower bauxite mine to connect the belt conveyor for transporting ore. After extending to the designated position, develop the bottom yard 20 of the bauxite mine, the transportation crosscut 50, and the transportation roadway 60, etc. At the same time, develop the return air inclined shaft 80 from the horizontal return air main roadway 70 of the coal mine towards the lower bauxite ore body 20 to connect the transportation roadway 60, and the two work in parallel to form the return air passage as soon as possible. After the return air passage is formed, develop the auxiliary blind inclined shaft 90 for pedestrians and vehicles in the subsequent production operation of the bauxite mine.
[0053] S60: Evaluate and optimize the matching of the production system: Evaluate the matching of the development and extension production system, study the evaluation and optimization decision-making of the production system matching of the coal-bearing heterogeneous symbiotic minerals, and propose the construction technology for the matching transformation of the development and extension of coal and heterogeneous symbiotic minerals.
[0054] There are significant differences between the production systems of coal mines and bauxite mines. The coal mining operations in coal mines have basically achieved comprehensive mechanization. Through the cooperation of the three machines and one frame in the coal mining face, a strong production capacity has been formed. At the same time, a continuous transportation system is constructed through the lap belt conveyor throughout the coal mine, with extremely strong transportation capacity. While bauxite mainly adopts the room-and-pillar mining method, and the ore caving mainly still uses the blasting method. The loading and transportation of ore need to be carried out by trackless self-propelled equipment, and the production process is discontinuous. Compared with coal mines, the ore output per unit time is significantly smaller. In addition, bauxite generally transports ore to the ground through trackless self-propelled equipment, and the transportation capacity is weak. Because the production system of coal mines is huge and complex, and flammable gas is present in the coal seam, the requirements for the ventilation system are relatively high, requiring a large amount of air volume and fast air reversal ability. While bauxite has a simple production system structure and a small scale, and there are few toxic and harmful gases underground, so the requirements for the ventilation system are general. As long as the overall ventilation capacity is improved according to the air supply demand of bauxite to meet the activities of underground workers.
[0055] In view of the production capacity difference between coal mines and bauxite mines, a crushing chamber can be built in the bauxite mine shaft bottom yard, an ore centralized transfer area can be arranged, and a belt conveyor can be lapped in the main inclined shaft between the bauxite mine and the coal mine. Since the internal roadways in the bauxite mine stope are short and there are many curves, trackless self-propelled equipment with a high degree of flexibility is still used to transport ore between the bauxite mine stope and the ore centralized transfer area. In this way, a semi-continuous transportation system is built by coordinating the trackless transportation equipment and the belt conveyor, enabling the production and transportation systems of bauxite mines and coal mines to be matched and integrated, and relying on the coal mine belt transportation roadway and the vertical shaft hoisting equipment to transfer the ore to the surface.
[0056] S70: Establish a collaborative management system: Establish a collaborative management system for the development and extension of coal and bauxite to ensure the construction safety during the development period, improve the tunneling speed of the development roadway, stabilize the production capacity of the coal mine, and provide guarantee for completing the development and extension work with high quality and quantity.
[0057] According to Figure 2The co - development and extension collaborative management system for coal and associated minerals shown in the figure establishes a collaborative management system for the development and extension of coal and bauxite. The system mainly consists of a basic deposit information module, a three - dimensional deposit model module, a collaborative development constraint module, and an optimization plan module. Among them, the basic deposit information module mainly includes mine basic information, hoisting and transportation systems, ventilation and drainage systems, equipment information, and personnel information; the three - dimensional deposit model module mainly includes coal mine ore body models, bauxite ore body models, and development system models; the collaborative development constraint module mainly includes mining influence constraints, laws and regulations constraints, production plan constraints, technical and economic constraints, and safety protection constraints; the optimization plan module mainly optimizes and improves the development and extension plan and resource allocation plan based on the collaborative development constraint module, provides a basis for improving the development system model and carrying out matching transformation of the production systems of coal and bauxite, and enhances its technical and economic feasibility.
[0058] For example, electrical equipment in coal mines underground needs to have coal mine safety qualifications. When co - mining coal and associated minerals, it is necessary to conduct safety supervision on coal and associated mines according to the relevant regulations and standards of coal mining. Therefore, in the co - mining of coal and bauxite, relevant production equipment in bauxite mines needs to be equipped in accordance with the requirements of coal mine safety production.
[0059] Beneficial effects:
[0060] Aiming at the problem that the traditional development and extension method only considers the design principles such as the production capacity and geological conditions of a single mineral species, and does not involve the connection and matching between different production systems of multiple mineral species, which is difficult to meet the coordinated mining requirements of coal and associated minerals, this invention aims at the occurrence characteristics and mining method differences of associated minerals, considers the mining influence, takes the collaborative matching of production systems as the design principle, and constructs a co - development and extension collaborative management system for associated minerals at the same time, improving the generality of the method. Through the implementation of this technical invention, the coordinated mining of coal and associated minerals can be ensured to be carried out efficiently and safely. The main advantages of this method are as follows:
[0061] (1) The connection and matching of different production systems of multiple mineral species are realized. Based on geological exploration data, the differences in the production systems of coal and associated minerals are evaluated and the matching is calculated. Optimization countermeasures are proposed for the existing differences, and corresponding construction technologies for the matching transformation of development and extension are formulated, realizing the connection and matching of different production systems of multiple mineral species.
[0062] (2) A collaborative management system for the development and extension of coal and associated minerals has been established. Based on the basic information of the mine, a three-dimensional model of the ore body and a three-dimensional model of the development system are established to achieve visual management of the development and extension operations. At the same time, considering the technical and economic conditions and the characteristics of different ore types, constraint conditions are formed. On this premise, an optimization module is added to optimize the development plan and the resource allocation plan, improving the technical, economic and policy feasibility as a whole and ensuring the efficient and safe implementation of the development and extension operations.
[0063] The present invention proposes a method for the development and extension of the collaborative matching of the production system of coal and associated minerals. Aiming at the large differences in the occurrence state and mining methods of coal and associated minerals and the problem of mismatch in the development and extension system, first, by analyzing the sharing and the ability to ensure safe and stable service of facilities such as the original mine industrial square, tunneling, transportation, ventilation, storage, drainage, and monitoring, a matching evaluation of the production system of coal and associated minerals is carried out to determine the feasibility of the subsequent development and extension of the original production system. Then, considering the differences in the occurrence characteristics and mining methods of coal and associated minerals and the complexity of the geological conditions and the technical characteristics of the development roadway, the design principles for the development and extension are determined. Finally, a collaborative management system for the development and extension of coal and associated minerals is established. Through this system, three-dimensional visual management of the development system can be carried out, and the development plan can be improved and optimized using the constraint module to enhance its technical, economic and policy feasibility.
[0064] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.
Claims
1. A development and extension method for the collaborative matching of a coal and associated mineral production system, characterized in that: It includes the following steps: S10. Conduct geological exploration: Collect hydrogeological information of the mining area through exploration boreholes in the coordinated mining area, including the occurrence horizons of coal seams and associated minerals, the groundwater level, the lithology of the exploration horizons, and the in-situ stress; When collecting hydrogeological information using boreholes, the borehole density is determined according to the geological complexity, and the drilling depth is not less than the burial depth of the main coal seam and associated minerals. The hydrogeological information includes the horizons, lithology, structural features, stratigraphic contact relationships, and in-situ stress of the exploration strata; S20. Define the ore bodies of allogenic associated minerals: Based on the geological exploration, delimit the spatial scope of the allogenic associated ore bodies, determine the ore body occurrence, and provide a basis for formulating the development and extension plan; S30: Analyze the feasibility of development and extension: Based on the geological condition data from the above geological exploration, study the feasibility of subsequent development and extension of the original roadway system during the underground co-mining of allogenic associated minerals, and analyze the sharing and the safety and stable service guarantee capabilities of the original mine industrial square, tunneling, transportation, ventilation, storage, drainage, and monitoring facilities; S40: Determine the design principles for development and extension: Aiming at the occurrence characteristics of different ore types, considering the differences in production systems, propose the design principles for the position and spatial layout of the breakthrough points of the development and extension projects with complex and changeable geology, super-large variable cross-sections, and multiple branch roadways, and reduce the influence of mining on the development and extension roadways; The design principles for development and extension need to consider the occurrence characteristics of different ore types and the possible impacts on personal safety. At the same time, considering the variability of geological conditions, try to reduce the complexity of the development and extension system and the tunneling workload of the development and extension roadways; S50: Formulate the development and extension plan: According to the above design principles, formulate the development and extension plan, including the development and extension methods, connection positions, and layout forms of the development and extension roadways; The development and extension methods include shaft development, inclined shaft development, and ramp development. However, there will be specific development and extension methods for ore bodies with different occurrences, such as upper plate shaft development and lower plate inclined shaft development; S60: Evaluate and optimize the matching of the production system: Evaluate the matching of the development and extension production system, study the evaluation and optimization decision-making of the production system matching of coal series allogenic associated minerals, and propose the construction technology for the matching transformation of the development and extension of coal and associated minerals; The production system includes the transportation system, ventilation system, drainage system, and power supply system. Based on the development and extension plan, evaluate the connection and conversion of the production systems of the coal mine and allogenic associated minerals, and check for omissions and optimize and improve the plan; S70: Establish a collaborative management system: Establish a collaborative management system for the development and extension of coal and allogenic associated minerals, ensure the construction safety during the development and extension period, improve the tunneling speed of the development and extension roadways, and stabilize the production capacity; The collaborative management system for the development and extension of coal and associated minerals consists of a basic deposit information module, a three-dimensional deposit model module, a collaborative development constraint module, and an optimization plan module. The basic deposit information module includes mine basic information, hoisting and transportation systems, ventilation and drainage systems, equipment information, and personnel information. The three-dimensional deposit model module includes coal mine ore body models, associated ore body models, and development and extension system models. The collaborative development constraint module includes mining influence constraints, legal and regulatory constraints, production plan constraints, technical and economic constraints, and safety protection constraints. The optimization plan module optimizes and improves the development and extension plan and the resource allocation plan.
2. The development and extension method for collaborative matching of a coal and associated mineral production system according to claim 1, characterized in that: In step S20, the spatial scope of the associated ore bodies is delineated according to the corresponding industrial indices, which include mining grade and washability.
3. The development and extension method for collaborative matching of a coal and associated mineral production system according to claim 1, wherein: In step S30, the evaluation of the feasibility of development and extension includes technical and economic aspects. Technically, it analyzes the matching of the production systems of coal and associated minerals, and evaluates whether the indicators of the coal mine production system can support the normal progress of the development and extension work and meet the stable production requirements of subsequent associated minerals. Economically, it analyzes the manpower, material resources, and financial resources consumed by the development and extension, and evaluates whether it is economically feasible.