Coal caving control system and method

Abstract

The invention discloses a coal caving control system and method.The coal caving control system comprises a support controller, and the support controller comprises a cooperative control unit including a first cooperative control unit and a second cooperative control unit, the first cooperative control unit is used for cooperatively controlling the coal caving action of the hydraulic support and work of other coal mining related equipment, and the second cooperative control unit is used for cooperatively controlling the coal caving action of the hydraulic support and upstream and downstream actions of the coal caving action. According to the coal caving control system, when other coal mining related equipment is abnormal or breaks down, the coal caving action can be controlled in time, and the safety protection effect is achieved; according to the coal caving control system, the coal caving action and the upstream and downstream actions can be executed in an overlapped mode, the coal caving efficiency is improved, the coal caving control system can continuously and normally operate through the first cooperative control unit and the second cooperative control unit, high flexibility is achieved, the coal caving quality is guaranteed, and intelligent and unmanned development of the fully-mechanized caving mining technology is facilitated.

Description

Technical Field

[0001] This application relates to the field of coal mining technology, specifically to a coal discharge control system and method. Background Technology

[0002] As one of the landmark technologies in my country's coal mining industry, fully mechanized longwall mining faces a series of scientific challenges that urgently need to be addressed in its intelligentization process. Currently, in the practice of fully mechanized longwall mining, manual window-closing methods relying on experience, such as listening and visual inspection, still dominate. This results in high labor intensity and harsh working conditions for coal miners, as well as low efficiency and quality in coal extraction. Summary of the Invention

[0003] This application aims to provide a coal discharge control system and method to solve at least one of the problems existing in the prior art, such as high labor intensity for workers, harsh working environment, low coal discharge quality, and low coal discharge efficiency.

[0004] To address the aforementioned technical problems, this application provides a coal discharge control system, including a support controller. The support controller includes a coordination control unit, comprising a first coordination control unit and a second coordination control unit. The first coordination control unit is used to coordinately control the coal discharge action of the hydraulic support and the operation of other coal mining-related equipment. The second coordination control unit is used to coordinately control the coal discharge action of the hydraulic support and the upstream and downstream actions of the coal discharge action.

[0005] Furthermore, the other coal mining-related equipment includes a conveyor and an emulsion pump. The conveyor is located downstream of the hydraulic support. The first collaborative control unit is used to control the coal discharge action to pause when the conveyor is in an abnormal working state, and to control the coal discharge action to resume when the conveyor is in a normal working state. The abnormal working state of the conveyor includes the conveyor stopping or the load on the conveyor exceeding a preset load threshold. The first collaborative control unit is also used to control the coal discharge action to pause when the emulsion pump is in an abnormal working state, and to control the coal discharge action to resume when the emulsion pump is in a normal working state. The abnormal working state of the emulsion pump includes the emulsion pump stopping.

[0006] Furthermore, the first collaborative control unit determines whether the load of the transport aircraft exceeds the preset load threshold based on the current or operating power of the transport aircraft.

[0007] Furthermore, the coal discharge control system also includes an inclination sensor for detecting the tail beam angle during coal discharge; the second collaborative control unit includes a tail beam control module for adjusting the tail beam angle based on the detection data from the inclination sensor, so that the coal discharge action is coordinated with the pull-back conveyor action.

[0008] Furthermore, the second collaborative control unit includes an action superposition control module for controlling the superposition execution of the coal discharge action and the upstream and downstream actions of the coal discharge action, wherein the upstream and downstream actions include at least one of pushing the conveyor, extending and retracting the telescopic beam, and extending and retracting the side guard.

[0009] Furthermore, the support controller also includes a moving action control unit for independently controlling the moving action of the hydraulic support.

[0010] Furthermore, the support controller also includes a coal discharge window configuration unit for configuring the window parameters of the coal discharge window, the window parameters including at least one of the following: insert plate extension / retraction parameters, tail beam extension / retraction parameters, and coal discharge target parameters.

[0011] Furthermore, the coal discharge window has multiple window positions, each with different window parameters. The coal discharge window configuration unit adjusts the coal discharge window to the corresponding window position according to the coal mining situation.

[0012] Furthermore, the coal discharge window configuration unit is also used to configure the coal discharge windows of a single hydraulic support, a partial number of hydraulic supports, or all hydraulic supports.

[0013] The present invention also provides a coal discharge control method, applied to a coal discharge control system, the coal discharge control system including a support controller, the support controller including a coordination control unit, the coordination control unit including a first coordination control unit and a second coordination control unit, the method including: coordinating the coal discharge action of the hydraulic support and the operation of other coal mining related equipment through the first coordination control unit; and coordinating the coal discharge action of the hydraulic support and the upstream and downstream actions of the coal discharge action through the second coordination control unit.

[0014] The coal discharge control system of this invention incorporates a collaborative control unit within the support controller. A first collaborative control unit coordinates the coal discharge action of the hydraulic support with the operation of other coal mining-related equipment (such as conveyors and emulsion pumps). This ensures timely control of the coal discharge action in case of abnormalities or malfunctions in other coal mining-related equipment, providing safety protection. A second collaborative control unit coordinates the coal discharge action with upstream and downstream actions (such as pushing the conveyor, extending and retracting the telescopic beam, and extending and retracting the side protection). This allows for the superposition and execution of the coal discharge action with upstream and downstream actions, improving coal discharge efficiency. The combination of the first and second collaborative control units enables the coal discharge control system to operate continuously and normally, exhibiting high flexibility, ensuring coal discharge quality, and contributing to the intelligent and unmanned development of fully mechanized coal mining technology.

[0015] The coal discharge control method of the present invention has all the beneficial effects of the coal discharge control system described above, which will not be repeated here. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the coal discharge control system according to an embodiment of this application;

[0018] Figure 2 This is a flowchart illustrating the window position configuration in an embodiment of this application.

[0019] Figure 3 This is a schematic flowchart of the coal discharge control method according to an embodiment of this application. Detailed Implementation

[0020] Various embodiments and features of this application are described herein with reference to the accompanying drawings.

[0021] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this application will be apparent to those skilled in the art.

[0022] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0023] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0024] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0025] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0026] Specific embodiments of this application are described thereafter with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use this application in a variety of substantially any suitable detailed structures.

[0027] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.

[0028] The present invention provides a coal discharge control system, including a support controller. The support controller includes a coordination control unit, comprising a first coordination control unit and a second coordination control unit. The first coordination control unit is used to coordinate the coal discharge action of the hydraulic support and the operation of other coal mining-related equipment. The second coordination control unit is used to coordinate the coal discharge action of the hydraulic support and the upstream and downstream actions of the coal discharge action.

[0029] Combination Figure 1 As shown, the first collaborative control unit can coordinate the coal discharge action of the hydraulic support and the operation of other coal mining-related equipment, such as a conveyor and an emulsion pump. The conveyor is located downstream of the hydraulic support. The first collaborative control unit is used to control the coal discharge action to pause when the conveyor is in an abnormal working state, and to control the coal discharge action to resume when the conveyor is in a normal working state, thereby continuing the coal discharge action. The abnormal working state of the conveyor includes the conveyor stopping or the load of the conveyor exceeding a preset load threshold. The first collaborative control unit determines whether the load of the conveyor exceeds the preset load threshold based on the current or operating power of the conveyor. For example, the preset load threshold is set to the overload current value I. max When the downstream transport current value exceeds I max When the first collaborative control unit controls the coal feeding action to immediately stop, and when the conveyor current value is lower than I... max At that time, the first collaborative control unit resumes the coal feeding action and continues execution.

[0030] Optionally, the first cooperative control unit may also set the preset load threshold to the overload power value P. max When the downstream transport aircraft power value exceeds P max When the first coordinated control unit controls the coal feeding action to immediately stop, and when the conveyor power value is lower than P... maxAt that time, the first collaborative control unit resumes the coal feeding action and continues execution.

[0031] In addition, the first collaborative control unit is also used to control the coal discharge action to pause when the emulsion pump is in an abnormal working state, and to control the coal discharge action to resume when the emulsion pump is in a normal working state; wherein, the abnormal working state of the emulsion pump includes the emulsion pump being shut down.

[0032] When either the conveyor or the emulsion pump is in an abnormal working state, the coal discharge operation can be immediately suspended through the first coordination control unit, which protects the downstream conveyor and avoids the problem of uncoordinated hydraulic support hydraulic and electrical control signals.

[0033] Furthermore, combined Figure 1 As shown, the coal feeding control system also includes a tilt sensor, which is used to detect the tail beam angle during coal feeding. When the tail beam is raised, the tilt angle value detected by the tilt sensor decreases, and when the tail beam is lowered, the tilt angle value increases.

[0034] The second collaborative control unit includes a tail beam control module, which is used to adjust the tail beam angle according to the detection data of the tilt angle sensor so that the coal discharge action and the pull-back conveyor action are coordinated. For example, if the target tilt angle value is set to θ, the second collaborative control unit gradually adjusts the tilt angle value to equal the target tilt angle value θ by means of shaking fine adjustment based on the current tilt angle value detected by the tilt angle sensor, thereby realizing precise control of the tail beam action and avoiding problems such as the tail beam being too low and hitting the pull-back conveyor, or the tail beam being too high and causing low coal discharge efficiency.

[0035] Specifically, in combination Figure 1 As shown, the second collaborative control unit includes an action superposition control module, which is used to control the superposition execution of the coal discharge action and the upstream and downstream actions of the coal discharge action. The upstream and downstream actions include at least one of pushing the conveyor, extending and retracting the telescopic beam, and extending and retracting the side guard.

[0036] For example, while the coal feeding action is being executed, the action superposition control module can control the pushing action, the extension and retraction beam action, and the extension and retraction side protection action to be superimposed. Some of these actions are upstream actions, and some are downstream actions. Through the action superposition control module, two actions can be superimposed and executed simultaneously without changing the independent execution of the original actions. The two actions will not interrupt or cover each other, thus improving work efficiency.

[0037] Furthermore, the support controller also includes a moving action control unit for independently controlling the moving action of the hydraulic support. In this way, the moving action control unit can independently execute the hydraulic support's movement, ensuring maximum coal discharge efficiency while maintaining the normal movement of the hydraulic support.

[0038] Furthermore, combined Figure 1 As shown, the support controller also includes a coal discharge window configuration unit for configuring the window parameters of the coal discharge window. The window parameters include at least one of the following: insert plate extension / retraction parameters, tail beam extension / retraction parameters, and coal discharge target parameters.

[0039] The coal discharge window configuration unit allows for the configuration of window parameters such as slide plate extension and retraction parameters (e.g., the time, distance, and frequency of slide plate extension and retraction), tail beam extension and retraction parameters (e.g., the time, distance, and frequency of tail beam extension and retraction), and coal discharge target parameters (e.g., the target angle of the coal discharge window and the coal discharge shaking time). This facilitates precise control of the coal discharge action and its upstream and downstream actions, and the corresponding window parameters can be modified as needed, offering the advantage of flexible adjustment.

[0040] Furthermore, the coal discharge window has multiple window positions, each with different window parameters. The coal discharge window configuration unit adjusts the coal discharge window to the corresponding window position according to the coal mining situation. When adjusting the configuration of the coal discharge window, there is no need to modify the specific window parameters; only the window position needs to be switched. This ensures flexible adjustment and configuration of the coal discharge window and also supports the adjustment of individual window parameters, resulting in good overall flexibility of the coal discharge control system.

[0041] Combination Figure 1 and Figure 2 As shown, the coal discharge window configuration unit is also used to configure the coal discharge windows of a single hydraulic support, multiple hydraulic supports in a local area, or all hydraulic supports. After switching the window position, the corresponding window position data is entered, and the window position data can be stored in a single hydraulic support, multiple hydraulic supports in a local area, or all hydraulic supports, thereby facilitating the operation of the corresponding hydraulic supports and providing high flexibility.

[0042] The coal discharge control system of this invention incorporates a collaborative control unit within the support controller. A first collaborative control unit coordinates the coal discharge action of the hydraulic support with the operation of other coal mining-related equipment (such as conveyors and emulsion pumps). This ensures timely control of the coal discharge action in case of abnormalities or malfunctions in other coal mining-related equipment, providing safety protection. A second collaborative control unit coordinates the coal discharge action with upstream and downstream actions (such as pushing the conveyor, extending and retracting the telescopic beam, and extending and retracting the side protection). This allows for the superposition and execution of the coal discharge action with upstream and downstream actions, improving coal discharge efficiency. The combination of the first and second collaborative control units enables the coal discharge control system to operate continuously and normally, exhibiting high flexibility, ensuring coal discharge quality, and contributing to the intelligent and unmanned development of fully mechanized coal mining technology.

[0043] This invention also provides a coal discharge control method, combined with Figure 3 As shown, an application is made to a coal discharge control system, the coal discharge control system including a support controller, the support controller including a coordination control unit, the coordination control unit including a first coordination control unit and a second coordination control unit, the method including:

[0044] S100. The first collaborative control unit performs collaborative control on the coal release action of the hydraulic support and the operation of other coal mining-related equipment.

[0045] S200, The second collaborative control unit performs collaborative control on the coal discharge action of the hydraulic support and the upstream and downstream actions of the coal discharge action.

[0046] The first collaborative control unit controls the coal discharge action and coordinates the operation of other coal mining-related equipment, such as conveyors and emulsion pumps. When the conveyor is in an abnormal operating state, the first collaborative control unit suspends the coal discharge action and resumes it when the conveyor is in normal operating state. Similarly, it suspends the coal discharge action when the emulsion pump is in an abnormal operating state and resumes it when the pump is in normal operating state. The second collaborative control unit controls the coal discharge action and its upstream and downstream actions, thus coordinating the coal discharge action with these actions. For example, the tail beam control module adjusts the tail beam angle, and the action superposition control module controls the coal discharge action to be superimposed with any one of the upstream and downstream actions (including pushing the conveyor, extending and retracting the telescopic beam, extending and retracting the side guard, etc.).

[0047] The coal release control method of this invention uses a first collaborative control unit to coordinate the coal release action of the hydraulic support and the operation of other coal mining-related equipment (such as conveyors, emulsion pumps, etc.). This allows for timely control of the coal release action when other coal mining-related equipment malfunctions or fails, thus providing safety protection. A second collaborative control unit coordinates the coal release action with upstream and downstream actions (such as pushing the conveyor, extending and retracting the telescopic beam, extending and retracting the side guard, etc.), enabling the coal release action to be superimposed on the upstream and downstream actions, improving coal release efficiency. The coal release control system using this method can operate continuously and normally, exhibiting high flexibility, ensuring coal release quality, and contributing to the intelligent and unmanned development of fully mechanized coal mining technology.

[0048] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A coal discharge control system, characterized in that, Includes a support controller, the support controller comprising: The collaborative control unit includes a first collaborative control unit and a second collaborative control unit. The first collaborative control unit is used to coordinate the coal release action of the hydraulic support and the operation of other coal mining-related equipment. The second collaborative control unit is used to coordinate the coal release action of the hydraulic support and the upstream and downstream actions of the coal release action.

2. The coal discharge control system according to claim 1, characterized in that, The other coal mining-related equipment includes a conveyor and an emulsion pump, wherein the conveyor is located downstream of the hydraulic support. The first collaborative control unit is used to control the coal discharge action to pause when the conveyor is in an abnormal working state, and to control the coal discharge action to resume when the conveyor is in a normal working state; wherein, the abnormal working state of the conveyor includes the conveyor stopping or the load of the conveyor exceeding a preset load threshold; The first collaborative control unit is further configured to control the coal discharge action to pause when the emulsion pump is in an abnormal working state, and to control the coal discharge action to resume when the emulsion pump is in a normal working state; wherein, the abnormal working state of the emulsion pump includes the shutdown of the emulsion pump.

3. The coal discharge control system according to claim 2, characterized in that, The first collaborative control unit determines whether the load of the transport aircraft exceeds the preset load threshold based on the current or operating power of the transport aircraft.

4. The coal discharge control system according to claim 1, characterized in that, The coal discharge control system also includes a tilt sensor for detecting the tail beam angle during coal discharge; The second collaborative control unit includes a tail beam control module, which is used to adjust the tail beam angle according to the detection data of the tilt sensor so as to coordinate the coal discharge action with the pull-back conveyor action.

5. The coal discharge control system according to claim 1, characterized in that, The second collaborative control unit includes an action superposition control module, which controls the superposition execution of the coal discharge action and the upstream and downstream actions of the coal discharge action. The upstream and downstream actions include at least one of pushing the conveyor, extending and retracting the telescopic beam, and extending and retracting the side guard.

6. The coal discharge control system according to claim 1, characterized in that, The support controller also includes a moving action control unit, which is used to independently control the moving action of the hydraulic support.

7. The coal discharge control system according to claim 1, characterized in that, The support controller also includes a coal discharge window configuration unit for configuring the window parameters of the coal discharge window, wherein the window parameters include at least one of the following: insert plate extension / retraction parameters, tail beam extension / retraction parameters, and coal discharge target parameters.

8. The coal discharge control system according to claim 1, characterized in that, The coal discharge window has multiple window positions, and each window position has different window parameters. The coal discharge window configuration unit adjusts the coal discharge window to the corresponding window position according to the coal mining situation.

9. The coal discharge control system according to claim 8, characterized in that, The coal discharge window configuration unit is also used to configure the coal discharge windows of a single hydraulic support, a partial number of hydraulic supports, or all hydraulic supports.

10. A method for controlling coal discharge, characterized in that, An application is made in a coal discharge control system, the coal discharge control system including a support controller, the support controller including a coordination control unit, the coordination control unit including a first coordination control unit and a second coordination control unit, the method comprising: The first collaborative control unit coordinates the coal release action of the hydraulic support and the operation of other coal mining-related equipment. The second collaborative control unit coordinates the coal discharge action of the hydraulic support and the upstream and downstream actions of the coal discharge action.

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