Long-distance pipeline transportation equipment and pipeline transportation tail station device thereof

Abstract

The present invention discloses a long-distance pipeline transportation equipment and a pipeline transportation tail station device thereof, including a stirring tank and a separation box, and also including a first pipeline for connecting the main pipeline and the stirring tank and a second pipeline for connecting the main pipeline and the separation box, the first pipeline is provided with a first control valve for controlling its on-off, the second pipeline is provided with a second control valve for controlling its on-off, and at least one of the first control valve and the second control valve is in an open state, the stirring tank and the separation box are connected through a third pipeline, and the third pipeline is provided with a lifting pump for providing power to transport the material in the stirring tank to the separation box. The above-mentioned pipeline transportation tail station device can realize multi-process transportation to improve pipeline transportation efficiency, and can reduce the energy consumption of the stirring tank and the lifting pump, and can also realize that the normal transportation of the slurry is not affected when the equipment of the ironmaking plant fails, thereby reducing the production cost to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline transportation, and in particular to a pipeline transportation tail station device. The present invention also relates to a long-distance pipeline transportation equipment having the pipeline transportation tail station device. Background Art

[0002] With the requirements of energy conservation and environmental protection of enterprises and the development of automatic control technology, the application of long-distance pipeline transportation in mining enterprises has gradually been promoted. The pipeline transportation tail station device is an indispensable link in the long-distance pipeline transportation system. The downstream process of the tail station is the ironmaking plant. In the long-distance continuous assembly line material transportation process, any problem in one link in the ironmaking plant will affect the normal transportation of the pipeline. In the prior art, the material transported from the main pipeline to the mixing tank is directly transported to the separation box through the pipeline, and then transported to the filtration system through the separation box. Among them, the pipeline transportation process is relatively simple. If the ironmaking plant equipment fails, it will affect the normal transportation of the pipeline.

[0003] Therefore, how to avoid affecting pipeline transportation efficiency due to the single process of traditional pipeline transportation is a technical problem that technical personnel in this field need to solve at present. Summary of the invention

[0004] The purpose of the present invention is to provide a pipeline transportation tail station device, which can achieve normal material transportation without affecting the equipment failure of the ironmaking plant, improve the pipeline transportation efficiency, and thus reduce production costs. Another purpose of the present invention is to provide a long-distance pipeline transportation equipment including the above pipeline transportation tail station device.

[0005] To achieve the above-mentioned purpose, the present invention provides a pipeline transportation tail station device, including a mixing tank and a separation box, and also including a first pipeline for connecting the main pipeline and the mixing tank and a second pipeline for connecting the main pipeline and the separation box. The first pipeline is provided with a first control valve for controlling its on and off, and the second pipeline is provided with a second control valve for controlling its on and off, and at least one of the first control valve and the second control valve is in an open state. The mixing tank is connected to the separation box through a third pipeline, and the third pipeline is provided with a lifting pump for providing power to transport the material in the mixing tank to the separation box.

[0006] Optionally, it also includes a filter connected to the distribution box and a concentrator connected to the filter, the concentrator is connected to the mixing tank through a fourth pipeline, the fourth pipeline is provided with a first underflow pump and a third control valve for controlling the opening and closing of the fourth pipeline, the first underflow pump is used to provide power to transport the material concentrated by the concentrator to the mixing tank.

[0007] Optionally, the concentrator is connected to the distribution box via a fifth pipeline, the fifth pipeline is provided with a second underflow pump and a fourth control valve for controlling the opening and closing of the fifth pipeline, and the second underflow pump is used to provide power to transport the material concentrated by the concentrator to the distribution box.

[0008] Optionally, the second pipeline, the fourth pipeline and the fifth pipeline are all connected to a backwash water pipeline, and any backwash water pipeline is provided with a backwash water valve for controlling the on-off of the backwash water pipeline.

[0009] Optionally, the first control valve, the second control valve, the third control valve and the fourth control valve are all electric valves.

[0010] Optionally, the concentrator is connected to a water circulation system for transporting water generated by concentrating the material in the concentrator.

[0011] Optionally, it also includes a control system connected to the first control valve and the second control valve for controlling the opening and closing of the first control valve and the second control valve.

[0012] Optionally, the filter is connected to a belt conveyor, and the belt conveyor is provided with a fault reporting system. When the belt conveyor fails, the fault reporting system can send a fault signal to the control system, so that the control system controls the first control valve to open after receiving the fault signal.

[0013] Optionally, the control system includes a host computer and a PLC connected to the host computer.

[0014] The present invention also provides long-distance pipeline transportation equipment, comprising any one of the above-mentioned pipeline transportation tail station devices.

[0015] Relative to the above background technology, the pipeline transportation tail station device provided in the embodiment of the present invention includes a mixing tank and a ore separation box, and also includes a first pipeline and a second pipeline, wherein the first pipeline is used to connect the main pipeline with the mixing tank, and the second pipeline is used to connect the main pipeline with the ore separation box. Further, the first pipeline is provided with a first control valve for controlling its on and off, and the second pipeline is provided with a second control valve for controlling its on and off, and at least one of the first control valve and the second control valve is in an open state; in addition, the mixing tank is connected to the ore separation box through a third pipeline, and the third pipeline is provided with a lifting pump, which is used to provide power to transport the material in the mixing tank to the ore separation box. It can be seen that the iron ore concentrate with a concentration of 63-67% is sent to the tail station device through the main pipeline by the pipeline first station equipment. During normal transportation, the first control valve is closed and the second control valve is opened, and the slurry transported by the main pipeline can directly enter the ore separation box and be sent to the next process after filtering; in an emergency state, the second control valve is closed and the first control valve is opened, so that the slurry can enter the mixing tank and be sent to the ore separation box through the third pipeline through the lifting pump. Obviously, in order to prevent the pipeline from bursting due to a sharp increase in pipeline pressure when the first control valve and the second control valve are closed at the same time, the first control valve and the second control valve are set to at least one of them in an open state. In this way, compared with the traditional single-flow setting method, the pipeline transportation tail station device provided by the embodiment of the present invention can realize multi-flow transportation to improve pipeline transportation efficiency, and can reduce the energy consumption of the mixing tank and the lifting pump. At the same time, it can also achieve the normal transportation of the slurry without affecting the equipment failure of the ironmaking plant, thereby reducing the production cost to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 A pipeline transportation schematic diagram of a pipeline transportation tail station device provided in an embodiment of the present invention;

[0018] Figure 2 An interlocking program diagram of a first control valve of a pipeline transportation tail station device provided by an embodiment of the present invention;

[0019] Figure 3 An interlocking program diagram of a second control valve of a pipeline transportation tail station device provided by an embodiment of the present invention;

[0020] Figure 4A control program diagram for opening and closing valves of a pipeline transportation tail station device provided in an embodiment of the present invention;

[0021] Figure 5 A control program diagram of valve stopping, valve opening and valve closing of a pipeline transportation tail station device provided by an embodiment of the present invention;

[0022] Figure 6 A control program diagram of a valve failure in a pipeline transportation tail station device provided in an embodiment of the present invention.

[0023] in:

[0024] 1-main pipeline, 2-first pipeline, 3-first control valve, 4-mixing tank, 5-second pipeline, 6-second control valve, 7-third pipeline, 8-lifting pump, 9-backwash water pipeline, 10-backwash water valve, 11-ore separation box, 12-filter, 13-thickener, 14-belt conveyor, 15-circulating water system, 16-fourth pipeline, 17-first underflow pump, 18-third control valve, 19-fifth pipeline, 20-second underflow pump, 21-fourth control valve. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0026] The core of the present invention is to provide a pipeline transportation tail station device, which can ensure that the normal transportation of materials is not affected when the ironmaking plant equipment fails, improve the pipeline transportation efficiency, and thus reduce production costs. Another core of the present invention is to provide a long-distance pipeline transportation equipment including the above-mentioned pipeline transportation tail station device.

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Please refer to Figure 1-Figure 6 , Figure 1 A pipeline transportation schematic diagram of a pipeline transportation tail station device provided in an embodiment of the present invention; Figure 2 An interlocking program diagram of a first control valve of a pipeline transportation tail station device provided by an embodiment of the present invention; Figure 3 An interlocking program diagram of a second control valve of a pipeline transportation tail station device provided by an embodiment of the present invention; Figure 4 A control program diagram for opening and closing valves of a pipeline transportation tail station device provided in an embodiment of the present invention; Figure 5 A control program diagram of valve stopping, valve opening and valve closing of a pipeline transportation tail station device provided by an embodiment of the present invention; Figure 6 A control program diagram of a valve failure in a pipeline transportation tail station device provided in an embodiment of the present invention.

[0029] like Figure 1 As shown, the pipeline transportation tail station device provided in the embodiment of the present invention includes a mixing tank 4, a separation box 11, a filter 12, a concentrator 13 and a belt conveyor 14, wherein the separation box 11 is connected to the filter 12 through a pipeline, the concentrator 13 is connected to the filter 12 through a pipeline, and the belt conveyor 14 is connected to the filter 12 through a pipeline; the mixing tank 4 is used to uniformly stir the slurry, and the stirred slurry is sent to the filter 12 through the separation box 11, and the filter 12 is used to filter the slurry. On the one hand, the filtered overflow flows into the concentrator 13, and on the other hand, the filtered iron concentrate is sent to the ironmaking plant through the belt conveyor 14.

[0030] Furthermore, the pipeline transportation tail station device also includes a first pipeline 2 and a second pipeline 5, wherein the first pipeline 2 is used to connect the main pipeline 1 and the mixing tank 4, and the second pipeline 5 is used to connect the main pipeline 1 and the distribution box 11. The first pipeline 2 is provided with a first control valve 3 for controlling its on and off, and the second pipeline 5 is provided with a second control valve 6 for controlling its on and off, and at least one of the first control valve 3 and the second control valve 6 is in an open state.

[0031] In addition, the mixing tank 4 is connected to the ore distribution box 11 through a third pipeline 7 , and the third pipeline 7 is provided with a lifting pump 8 , which is used to provide power to transport the material in the mixing tank 4 to the ore distribution box 11 .

[0032] It can be seen that the iron concentrate with a concentration of 63-67% is sent to the tail station device through the main pipeline 1 by the pipeline first station equipment. When it is in the normal transportation state, the first control valve 3 is closed and the second control valve 6 is opened, and the slurry transported by the main pipeline 1 can directly enter the ore separation box 11, and is sent to the next process after filtering; when it is in the emergency state, the second control valve 6 is closed and the first control valve 3 is opened, so that the slurry can enter the stirring tank and be sent to the ore separation box 11 through the third pipeline 7 by the lifting pump 8. Obviously, in order to prevent the pipeline from bursting due to a sharp increase in pipeline pressure when the first control valve 3 and the second control valve 6 are closed at the same time, the first control valve 3 and the second control valve 6 are set to at least one of them in the open state.

[0033] In this way, compared with the single setting of the traditional transportation process, the pipeline transportation tail station device provided by the embodiment of the present invention can realize multi-process transportation, that is, the slurry in the main pipeline 1 can enter the mixing tank 4 and then enter the separation box 11 through the lifting pump 8, and the other way can directly enter the separation box 11. This can improve the pipeline transportation efficiency and reduce the energy consumption of the lifting pump 8. At the same time, it can also achieve the normal transportation of the slurry without affecting the equipment failure of the iron and steel plant. In this way, the problem of the shutdown of the pipeline first station equipment due to the failure of the belt conveyor 14 can be solved, thereby reducing the production cost to a certain extent.

[0034] On the basis of the above, the concentrator 13 is connected to the mixing tank 4 through the fourth pipeline 16, and the fourth pipeline 16 is provided with a first underflow pump 17 and a third control valve 18. The third control valve 18 is used to control the opening and closing of the fourth pipeline 16, and the first underflow pump 17 is used to provide power to transport the material concentrated by the concentrator 13 to the mixing tank 4. In this way, in an emergency state, the concentrated slurry is sent to the mixing tank 4 through the third control valve 18 and the first underflow pump 17.

[0035] The concentrator 13 is connected to the ore separation box 11 through the fifth pipeline 19, and the fifth pipeline 19 is provided with a second underflow pump 20 and a fourth control valve 21. The fourth control valve 21 is used to control the opening and closing of the fifth pipeline 19, and the second underflow pump 20 is used to provide power to transport the material concentrated by the concentrator 13 to the ore separation box 11. In this way, when in a normal transportation state, the underflow of the concentrator 13 can return the concentrated slurry to the ore separation box 11 through the fourth control valve 21 and the second underflow pump 20.

[0036] That is, the underflow of the concentrator 13 can enter the mixing tank 4 in one way and the ore separation box 11 in another way. In addition, the concentrator 13 is also connected to the circulating water system 15, and the water generated after the slurry is concentrated by the concentrator 13 can enter the circulating water system 15.

[0037] Furthermore, the second pipe 5, the fourth pipe 16 and the fifth pipe 19 are all connected to the backwash water pipe 9, and any backwash water pipe 9 is provided with a backwash water valve 10, and the backwash water valve 10 can control the on and off of the backwash water pipe 9. In this way, when the vehicle is parked, the backwash water valve 10 can control the backwash water to enter the corresponding pipe through the backwash water pipe 9, so as to clean the second pipe 5, the fourth pipe 16 or the fifth pipe 19 and the corresponding valves of each pipe to avoid pipe blockage.

[0038] In order to optimize the above embodiment, the first control valve 3, the second control valve 6, the third control valve 18, the fourth control valve 21 and each backwash valve 10 are preferably electric valves.

[0039] In order to realize automatic control of the equipment, the pipeline transportation tail station device also includes a control system connected to the first control valve 3 and the second control valve 6. The control system is used to control the opening and closing of the first control valve 3 and the second control valve 6, and the control system can also ensure that the first control valve 3 and the second control valve 6 cannot be closed at the same time.

[0040] Specifically, the belt conveyor 14 is provided with a fault reporting system. For example, when the belt conveyor 14 fails, the fault reporting system can send a fault signal to the control system, so that the control system can control the first control valve 3 to open after receiving the fault signal, so that the slurry can flow into the mixing tank 4.

[0041] The above control system is specifically configured to include a host computer and a PLC connected to the host computer. The host computer is used to send corresponding instructions to the PLC, and the PLC can control the first control valve 3 and the second control valve 6 to open or close after receiving the instructions. It should be noted that the control functions of the host computer and the PLC in the above control system are well known to those skilled in the art, and are not the focus of protection of this application. The focus of this application is to realize the function of controlling the opening and closing of the valve through the connection relationship between the host computer, the PLC and the control valve.

[0042] It should be noted that the above-mentioned first control valve 3 and second control valve 6 can be interlocked, that is, when the first control valve 3 is fully opened, the second control valve 6 can be closed, and when the second control valve 6 is fully opened, the first control valve 3 can be closed. In this way, the risk of a sharp increase in pipeline pressure or even pipeline bursting caused by the simultaneous closing of the first control valve 3 and the second control valve 6 can be avoided.

[0043] The control program diagrams for interlocking the first control valve 3 and the second control valve 6 are as follows: Figure 2 and Figure 3 As shown, among them;

[0044] The 7# valve represents the first control valve 3, and the 8# valve represents the second control valve 6;

[0045] ZD_JBC_7F_PMGF is the terminal mixing tank 7# screen shut-off valve;

[0046] ZD_JBC_8F_PMGF is the terminal mixing tank 8# screen shut-off valve;

[0047] ZD_JBC_7F_KDW means the terminal mixing tank 7# valve is fully opened;

[0048] ZD_JBC_8F_KDW means the 8# valve of the terminal mixing tank is fully opened;

[0049] In other words, only when the control system receives the 8# valve open position instruction and the 7# valve screen close valve instruction at the same time, can the 7# valve be controlled to execute the screen close valve instruction; only when the control system receives the 7# valve open position instruction and the 8# valve screen close valve instruction at the same time, can the 8# valve be controlled to execute the screen close valve instruction.

[0050] The control procedures of the first control valve 3 and the second control valve 6 are described in detail below. The control procedures of the valve opening and closing are shown in the figure Figure 4 As shown in the figure, the control procedure diagram of valve stopping, opening and closing is as follows Figure 5 shown.

[0051] For the first control valve 3: the control program of the first control valve 3 is selected as centralized control. At this time, when the upper computer screen sends a valve opening signal, the opening position signal is 1, the screen valve closing signal is 1, and the valve stop signal is 1, the first control valve 3 is in the valve opening state and can be self-locked. After the preset time (set to 26 seconds in this paper), the valve opening function is realized and the valve opening is stopped. It should be noted that when the belt conveyor system fails, that is, the operation signal of the belt conveyor system is 0, the PLC controls the first control valve 3 to open the valve automatically. When the upper computer screen sends a valve closing signal, the closing position signal is 1, the screen valve opening signal is 1, and the valve stop signal is 1, the first control valve 3 is in the valve closing state and can be self-locked. After the preset time (set to 26 seconds in this paper), the valve closing function is realized and the valve closing is stopped; in addition, when the upper computer screen sends a valve stop signal for 5 seconds, the valve stop signal is terminated.

[0052] For the second control valve 6: the control program of the second control valve 6 is selected as centralized control. At this time, when the upper computer screen sends out a valve opening signal, the open position signal is 1, the screen valve closing signal is 1, and the valve stop signal is 1, the second control valve 6 is in the valve opening state and can self-lock. After the preset time (set to 26 seconds in this article), the valve opening function is realized and the valve opening stops; when the upper computer screen sends out a valve closing signal, the closed position signal is 1, the screen valve opening signal is 1, and the valve stop signal is 1, the second control valve 6 is in the valve closing state and can self-lock. After the preset time (set to 26 seconds in this article), the valve closing function is realized and the valve closing function is stopped; 5 seconds after the upper computer screen sends out a valve stop signal, the valve stop signal is terminated.

[0053] In addition, the control procedure diagram of valve failure is as follows Figure 6 As shown, specifically, when a failure occurs in either the valve opening position or the valve closing position, a valve failure instruction is reported.

[0054] The variable descriptions in the program can refer to Table 1.

[0055] Table 1

[0056]

[0057]

[0058]

[0059] The long-distance pipeline transportation equipment provided by the present invention includes the pipeline transportation tail station device described in the above specific embodiment; other parts of the long-distance pipeline transportation equipment can refer to the existing technology and will not be elaborated in this article.

[0060] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0061] The long-distance pipeline transportation equipment and the pipeline transportation tail station device provided by the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the scheme and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A pipeline transportation tail station device, characterized in that: It comprises a mixing tank (4) and a ore distribution box (11), and also comprises a first pipeline (2) for connecting a main pipeline (1) and the mixing tank (4) and a second pipeline (5) for connecting the main pipeline (1) and the ore distribution box (11), wherein the first pipeline (2) is provided with a first control valve (3) for controlling its on-off, and the second pipeline (5) is provided with a second control valve (6) for controlling its on-off, and at least one of the first control valve (3) and the second control valve (6) is in an open state, and the mixing tank (4) and the ore distribution box (11) are connected via a third pipeline (7), and the third pipeline (7) is provided with a lifting pump (8) for providing power to transport the material in the mixing tank (4) to the ore distribution box (11); It also includes a filter (12) connected to the ore separation box (11) and a concentrator (13) connected to the filter (12); the concentrator (13) is connected to the mixing tank (4) via a fourth pipeline (16); the fourth pipeline (16) is provided with a first underflow pump (17) and a third control valve (18) for controlling the opening and closing of the fourth pipeline (16); the first underflow pump (17) is used to provide power to transport the material concentrated by the concentrator (13) to the mixing tank (4); The concentrator (13) is connected to the ore separation box (11) via a fifth pipeline (19); the fifth pipeline (19) is provided with a second underflow pump (20) and a fourth control valve (21) for controlling the opening and closing of the fifth pipeline (19); the second underflow pump (20) is used to provide power to transport the material concentrated by the concentrator (13) to the ore separation box (11); The second pipeline (5), the fourth pipeline (16) and the fifth pipeline (19) are all connected to a backwash water pipeline (9), and any of the backwash water pipelines (9) is provided with a backwash water valve (10) for controlling the on / off of the backwash water pipeline (9); The concentrator (13) is connected to a water circulation system (15) for conveying water generated by concentrating materials in the concentrator (13); It also includes a control system connected to the first control valve (3) and the second control valve (6) and used to control the opening and closing of the first control valve (3) and the second control valve (6); The filter (12) is connected to a belt conveyor (14), and the belt conveyor (14) is provided with a fault reporting system. When the belt conveyor (14) fails, the fault reporting system can send a fault signal to the control system, so that the control system controls the first control valve (3) to open after receiving the fault signal.

2. The pipeline transportation tail station device according to claim 1, characterized in that: The first control valve (3), the second control valve (6), the third control valve (18) and the fourth control valve (21) are all electric valves.

3. The pipeline transportation tail station device according to claim 1, characterized in that: The control system includes a host computer and a PLC connected to the host computer.

4. A long-distance pipeline transportation equipment, characterized in that: It comprises the pipeline transportation tail station device as described in any one of claims 1 to 3.

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