Coal slime qualified medium barrel
Through the sealed design and buffer structure of coal slime qualified medium barrel, the changes in the nature of coal slime and the sorting accuracy problems caused by the open design are solved, and the stability and sorting accuracy of the suspension are improved, reducing production costs and safety risks.
Patent Information
- Application Number
- CN202422439604.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-10
AI Technical Summary
The existing qualified medium barrels of coal slime mostly adopt an open design, which is susceptible to the external environment to cause changes in the nature of coal slime water, affect the selection accuracy, and may lead to problems such as splashing and overflow of coal slime water, increasing production costs and safety risks.
Design a sealed coal slime qualified medium barrel, adopting a sealed cover and buffer structure to prevent suspension from splashing, set up a level gauge and a stirring device to monitor and regulate the liquid level and concentration in real time, combine a heat exchange jacket to prevent temperature influence, and ensure the stability and sorting accuracy of the suspension.
Effectively prevent suspension splash and media loss, reduce environmental pollution, reduce the impact of liquid level changes in operation, ensure the accuracy and safety of sorting, and reduce production costs.
Smart Images
Figure CN223300135U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of coal beneficiation, and in particular to a coal slime qualified medium barrel. Background Art
[0002] Coal preparation, also known as coal washing, is the process of using mechanical or chemical methods to remove harmful impurities from raw coal, recover associated minerals, and improve coal quality, thereby providing coal products and associated mineral products of appropriate quality for different users. During production, raw coal undergoes crushing, screening, shallow trough separation, and slime removal screening before entering a qualified medium barrel for storage, buffering, collection, and preparation of a suspension of a certain density for use in heavy medium separation equipment to separate coal concentrate from coal gangue.
[0003] Existing qualified coal slime medium barrels often use an open design, making them susceptible to external environmental influences (such as temperature and debris). This can cause changes in the properties of the coal slime water within the barrel, such as viscosity, density, and purity, which in turn affects the separation performance and accuracy of the coal slime cyclone. Furthermore, the open design can lead to problems such as coal slime water splashing and overflow, increasing production costs and safety risks. Utility Model Content
[0004] The present application provides a coal slime qualified medium barrel, which is used to solve the problem that the existing coal slime qualified medium barrels mostly adopt an open design and are easily affected by the external environment, resulting in poor coal slime cyclone separation accuracy.
[0005] The present application provides a coal slime qualified medium barrel, comprising:
[0006] The barrel body is in an inverted cone shape, and an overflow pipe is connected to the upper part of one side of the barrel body;
[0007] A sealing cover is provided on the top of the barrel body to seal the barrel body, and a suspension inlet pipe is connected to the sealing cover;
[0008] The liquid level gauge is set at the bottom of the sealing cover and is used to monitor the liquid level in the barrel; the output end of the suspension input pipe is connected to the buffer;
[0009] The buffer includes a housing;
[0010] The top of the shell is connected to the suspension input pipe through an opening;
[0011] A plurality of water leakage holes are provided in the central part of the side of the shell;
[0012] A pair of arc-shaped guide plates are provided in the shell. The guide plates are arranged in an "eight" shape. The upper end of the guide plate is located in the center of the suspension inlet pipe and is fixedly connected to the inner top of the shell. The other end is close to the side of the shell.
[0013] The front and rear side surfaces of the guide plate are fixedly connected to the inner wall of the shell.
[0014] Optionally, a stirring paddle is provided at the bottom of the shell, and a rotating shaft of the stirring paddle passes through the bottom of the shell and is connected to the driving device.
[0015] Optionally, a heat exchange jacket is provided outside the barrel.
[0016] Optionally, an agitator and a density meter are provided in the barrel;
[0017] The barrel body is also connected to the concentrated medium barrel through the concentrated medium pump and connected to the clean water barrel through the clean water pump;
[0018] The liquid level meter, agitator, density meter, concentrated medium pump and clean water pump are all electrically connected to the controller.
[0019] Optionally, the bottom of the barrel is connected to the coal slurry cyclone via a coal slurry pump;
[0020] The overflow pipe is connected to the qualified raw coal medium barrel, which is in turn connected in series with the raw coal cyclone, curved screen, de-mediation grading screen and barrel body;
[0021] The curved screen is also connected to the raw coal qualified medium barrel.
[0022] The present invention's qualified coal slime medium barrel, with a sealed cover atop the barrel, prevents splashing of the suspension entering the barrel, which could lead to medium loss and contamination of the working environment. This overcomes the drawback of existing qualified coal slime medium barrels, which often adopt an open design and are susceptible to environmental influences, impacting the accuracy of coal slime cyclone separation. Furthermore, the provision of a buffer not only reduces the impact of the incoming suspension on the suspension within the barrel, causing level fluctuations that could affect the operator's judgment, but also reduces contamination of the barrel's inner wall by splashing suspension. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0024] Figure 1 A schematic diagram of the structure of a coal slime qualified medium barrel provided in one embodiment of the present application;
[0025] Figure 2 A schematic structural diagram of a coal slime qualified medium barrel provided in another embodiment of the present application;
[0026] Figure 3 A schematic diagram of the internal structure of a buffer provided in one embodiment of the present application;
[0027] Figure 4 A schematic diagram of the internal main structure of a buffer provided in one embodiment of the present application;
[0028] Figure 5 A schematic diagram of the internal structure of a buffer provided in another embodiment of the present application;
[0029] Figure 6 A schematic diagram showing the connection between a coal slime qualified medium barrel and a density adjustment device provided in one embodiment of the present application;
[0030] Figure 7 This is a schematic diagram of the connection between the coal slime qualified medium barrel and the sorting equipment provided in one embodiment of the present application.
[0031] Description of reference numerals:
[0032] 1. Barrel body; 2. Sealing cover; 3. Liquid level gauge; 4. Coal slurry pump; 5. Coal slurry cyclone; 6. Raw coal qualified medium barrel; 7. Controller; 11. Overflow pipe; 12. Suspension inlet pipe; 13. Buffer; 14. Heat exchange jacket; 15. Agitator; 16. Density meter; 18. Clean water barrel; 61. Raw coal cyclone; 62. Curved screen; 63. De-mediating and grading screen; 17. Concentrated medium barrel; 131. Shell; 132. Guide plate; 133. Agitator paddle; 134. Drive unit; 171. Concentrated medium pump; 181. Clean water pump; 1301. Leakage hole. DETAILED DESCRIPTION
[0033] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts also fall within the scope of protection of this application.
[0034] like Figure 1 As shown, the present application provides a coal slime qualified medium barrel, comprising:
[0035] The barrel body 1 is in an inverted cone shape, and an overflow pipe 11 is connected to the upper part of one side of the barrel body 1;
[0036] The sealing cover 2 is arranged on the top of the barrel body 1 to seal the barrel body 1, and the sealing cover 2 is connected to the suspension input pipe 12;
[0037] The liquid level gauge 3 is provided at the bottom of the sealing cover 2 and is used to monitor the liquid level in the barrel 1;
[0038] like Figure 2As shown, the output end of the suspension input pipe 12 is connected to the buffer 13;
[0039] like Figure 3 and Figure 4 As shown, the buffer 13 includes a housing 131;
[0040] The top of the housing 131 is connected to the suspension input pipe 12 through an opening;
[0041] A plurality of water leakage holes 1301 are provided in the central portion of the side of the housing 131;
[0042] A pair of arc-shaped guide plates 132 are provided in the housing 131. The guide plates 132 are arranged in an "eight" shape. The upper end of the guide plate 132 is located in the center of the suspension inlet pipe 12 and is fixedly connected to the inner top of the housing 131. The other end is close to the side of the housing 131.
[0043] The front and rear side surfaces of the guide plate 132 are fixedly connected to the inner wall of the shell 131 .
[0044] In the present application, when in use, the coal slurry suspension input from the front section is input into the buffer 13 through the suspension input pipe 12, and after the diversion and diversion buffering of the "eight"-shaped guide plate 132, the coal slurry suspension enters the shell 131, and then overflows from the leakage hole 1301 opened on the side wall of the shell 131 and falls into the barrel body 1. Due to the presence of the sealing cover 2, the suspension entering the barrel body 1 can be prevented from splashing, resulting in medium loss and pollution of the working environment.
[0045] At the same time, a liquid level meter 3 (a radar level meter in this application) provided on the sealing cover 2 at the top of the barrel body 1 monitors the changes in the liquid level in the barrel body 1 in real time, so that the staff can timely adjust the flow rate of the suspension input into the barrel body 1. When the instantaneous input suspension is too large and difficult to adjust during operation, the excess suspension overflows from the overflow pipe 11 and is discharged into the corresponding receiving device.
[0046] The present invention's qualified coal slime medium barrel, with a sealing cap 2 affixed to the barrel body 1, prevents splashing of the suspension entering the barrel body 1, which could lead to medium loss and contamination of the working environment. This overcomes the drawback of existing qualified coal slime medium barrels, which often adopt an open design and are susceptible to environmental influences, impacting the accuracy of coal slime cyclone separation. Furthermore, the provision of a buffer 13 not only reduces the impact of the incoming suspension on the suspension within the barrel, causing level fluctuations that could affect the operator's judgment, but also reduces contamination of the inner wall of the barrel body 1 by splashing of the suspension.
[0047] like Figure 5 As shown, optionally, a stirring paddle 133 is provided at the bottom of the shell 131 , and a rotating shaft of the stirring paddle 133 passes through the bottom of the shell 131 and is connected to the driving device 134 .
[0048] When in use, the driving device 134 (such as a motor for waterproofing) at the bottom of the shell 131 is started, driving the stirring paddle 133 to stir the coal slurry suspension in the shell 131 to prevent the heavy medium (mainly magnetic powder) in the suspension from settling.
[0049] like Figure 6 As shown, optionally, the barrel body 1 is covered with a heat exchange jacket 14.
[0050] In the present application, the heat exchange jacket 14 is provided to effectively prevent the flotation medium from freezing and becoming difficult to separate due to the low temperature in cold seasons. The heat exchange jacket 14 can be heated by hot water or steam.
[0051] Optionally, a stirrer 15 and a densitometer 16 are provided in the barrel 1;
[0052] The barrel body 1 is also connected to the concentrated medium barrel 17 through the concentrated medium pump 171 and is connected to the clean water barrel 18 through the clean water pump 181;
[0053] The liquid level meter 3 , the stirrer 15 , the density meter 16 , the concentrated medium pump 171 , and the clean water pump 181 are all electrically connected to the controller 7 .
[0054] In this application, when the barrel body 1 is in use, the density meter 16 monitors the density of the coal slurry suspension in real time and feeds back the data to the controller 7. When the density of the coal slurry suspension is higher than the preset high value, the controller 7 controls the clean water pump 181 to transfer the clean water in the clean water bucket 18 into the barrel body 1. At the same time, the liquid level meter 3 feeds back the liquid level height data in the barrel body 1 to the controller 7, so as to timely adjust the flow rate of the clean water and the input coal slurry suspension. At the same time, the controller 7 controls the agitator 15 to stir the coal slurry suspension in the barrel body 1 to ensure that the coal slurry and clean water are evenly mixed.
[0055] Similarly, when the density of the coal slurry suspension falls below a preset lower value, the controller 7 controls the concentrate pump 171 to start transferring the high-concentration flotation medium in the concentrate tank 17 into the tank 1. Simultaneously, the liquid level meter 3 feeds back the liquid level data within the tank 1 to the controller 7, allowing for timely adjustment of the flow rate of the high-concentration medium and the incoming coal slurry suspension. Simultaneously, the controller 7 controls the agitator 15 to stir the coal slurry suspension within the tank 1 to ensure uniform mixing of the coal slurry and the concentrate. This process stabilizes the concentration of the coal slurry suspension within the tank 1 within a certain range, thereby ensuring a stable concentration of the coal slurry entering the coal slurry cyclone and, consequently, ensuring the accuracy of the cyclone separation.
[0056] like Figure 7 As shown, optionally, the bottom of the barrel 1 is connected to the coal slurry cyclone 5 through a coal slurry pump 4;
[0057] The overflow pipe 11 is connected to the raw coal qualified medium barrel 6, and the raw coal qualified medium barrel 6 is connected in series with the raw coal cyclone 61, the curved screen 62, the de-medium classification screen 63 and the barrel body 1 in sequence;
[0058] The curved screen 62 is also connected to the raw coal qualified medium barrel 6.
[0059] In the present application, during operation, the liquid level gauge 3 (a radar level gauge in the present application) provided on the top sealing cover 2 of the barrel body 1 monitors the liquid level changes in the barrel body 1 in real time, so that the staff can timely adjust the flow rate of the suspension input into the barrel body 1. When the suspension input instantaneously during operation is too large and difficult to adjust, the excess suspension enters the qualified raw coal medium barrel 6 from the overflow pipe 11, and is then transferred by the corresponding liquid transfer pump to the raw coal cyclone 61 for sorting. The clean coal obtained by sorting is input into the curved screen 62 for screening. Part of the clean coal after screening is input into the de-mediation grading screen 63 for screening, and the other part enters the qualified raw coal medium barrel 6 and then returns to the raw coal cyclone 61 for sorting. Part of the clean coal sorted in the de-mediation grading screen 63 enters the subsequent centrifugal dehydration process, and the other part of the screened material is input into the barrel body 1 and then input into the coal slime cyclone 5 for sorting.
[0060] A coal slime qualified medium barrel, its working process is as follows:
[0061] During use, the coal slurry suspension input from the front section is input into the buffer 13 through the suspension input pipe 12. After being diverted and buffered by the "eight"-shaped guide plate 132, the coal slurry suspension enters the shell 131, and then overflows from the leakage hole 1301 opened on the side wall of the shell 131 and falls into the barrel 1. At the same time, the driving device 134 at the bottom of the shell 131 (such as a motor for waterproofing) is activated, driving the stirring paddle 133 to stir the coal slurry suspension in the shell 131 to prevent the heavy medium (mainly magnetite powder) in the suspension from settling. The coal slurry suspension falling into the barrel 1 is then transferred to the coal slurry cyclone 5 by the coal slurry pump 4 for cyclone separation, separating the clean coal and the medium coal.
[0062] At the same time, the liquid level gauge 3 (a radar level gauge in this application) provided on the top sealing cover 2 of the barrel body 1 monitors the liquid level changes in the barrel body 1 in real time, so that the staff can timely adjust the flow rate of the suspension input into the barrel body 1. When the suspension input instantaneously during operation is too large and difficult to adjust, the excess suspension enters the qualified raw coal medium barrel 6 from the overflow pipe 11, and is then transferred by the corresponding liquid transfer pump to the raw coal cyclone 61 for sorting. The clean coal obtained by sorting is input into the curved screen 62 for screening. Part of the clean coal after screening is input into the de-mediation grading screen 63 for screening, and the other part enters the qualified raw coal medium barrel 6 and then returns to the raw coal cyclone 61 for sorting. Part of the clean coal sorted in the de-mediation grading screen 63 enters the subsequent centrifugal dehydration process, and the other part of the screened material is input into the barrel body 1 and then input into the coal slime cyclone 5 for sorting.
[0063] When the barrel body 1 is in use, the densitometer 16 monitors the density of the coal slurry suspension in real time and feeds the data back to the controller 7. When the density of the coal slurry suspension is higher than the preset high value, the controller 7 controls the clean water pump 181 to transfer the clean water in the clean water bucket 18 into the barrel body 1. At the same time, the liquid level meter 3 feeds back the liquid level height data in the barrel body 1 to the controller 7 so as to timely adjust the flow rate of the clean water and the input coal slurry suspension. At the same time, the controller 7 controls the agitator 15 to stir the coal slurry suspension in the barrel body 1 to ensure that the coal slurry and clean water are evenly mixed.
[0064] Similarly, when the density of the coal slurry suspension falls below a preset lower value, the controller 7 controls the concentrate pump 171 to start transferring the high-concentration flotation medium in the concentrate tank 17 into the tank 1. Simultaneously, the liquid level meter 3 feeds back the liquid level data within the tank 1 to the controller 7, allowing for timely adjustment of the flow rate of the high-concentration medium and the incoming coal slurry suspension. Simultaneously, the controller 7 controls the agitator 15 to stir the coal slurry suspension within the tank 1 to ensure uniform mixing of the coal slurry and the concentrate. This process stabilizes the concentration of the coal slurry suspension within the tank 1 within a certain range, thereby ensuring a stable concentration of the coal slurry entering the coal slurry cyclone 5 and, therefore, ensuring the quality of the cyclone separation.
[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A coal slime qualified medium barrel, characterized in that: include: A barrel body (1), wherein the barrel body (1) is in an inverted cone shape, and an overflow pipe (11) is connected to the upper portion of one side of the barrel body (1); A sealing cover (2), the sealing cover (2) being arranged on the top of the barrel body (1) to seal the barrel body (1), and the sealing cover (2) being connected to a suspension input pipe (12); A liquid level meter (3), the liquid level meter (3) being arranged at the bottom of the sealing cover (2) and being used to monitor the liquid level in the barrel (1); The output end of the suspension input pipe (12) is connected to the buffer (13); The buffer (13) includes a housing (131); The top of the housing (131) is connected to the suspension input pipe (12) through an opening; A plurality of water leakage holes (1301) are provided in the central portion of the side surface of the shell (131); A pair of arc-shaped guide plates (132) are provided in the shell (131), and the pair of guide plates (132) are arranged in an "eight" shape. The upper end of the guide plate (132) is located at the center of the suspension input pipe (12) and is fixedly connected to the inner top of the shell (131), and the other end is close to the side of the shell (131); The front and rear side surfaces of the guide plate (132) are fixedly connected to the inner wall of the shell (131).
2. The coal slime qualified medium barrel according to claim 1, characterized in that: A stirring paddle (133) is provided at the bottom of the housing (131), and a rotating shaft of the stirring paddle (133) passes through the bottom of the housing (131) and is connected to a driving device (134).
3. The coal slime qualified medium barrel according to claim 1, characterized in that: The barrel body (1) is covered with a heat exchange jacket (14).
4. The coal slime qualified medium barrel according to claim 1, characterized in that: The barrel (1) is provided with an agitator (15) and a densitometer (16); The barrel body (1) is also connected to the concentrated medium barrel (17) via a concentrated medium pump (171), and is connected to the clean water barrel (18) via a clean water pump (181); The liquid level meter (3), the stirrer (15), the density meter (16), the concentrated medium pump (171), and the clean water pump (181) are all electrically connected to the controller (7).
5. The coal slime qualified medium barrel according to any one of claims 1 to 4, characterized in that: The bottom of the barrel (1) is connected to a coal slurry cyclone (5) via a coal slurry pump (4); The overflow pipe (11) is connected to the raw coal qualified medium barrel (6), and the raw coal qualified medium barrel (6) is sequentially connected in series with the raw coal cyclone (61), the curved screen (62), the de-mediuming grading screen (63) and the barrel body (1); The curved screen (62) is also connected to the raw coal qualified medium barrel (6).