Multi-stage washing device for coal preparation plant

Abstract

The utility model relates to the technical field of coal washing, and provides a multistage washing device for a coal preparation plant, which comprises a shell arranged on a bottom frame, and a washing space is arranged in the shell; the feeding opening is formed in one side of the shell and communicates with the washing and selecting space; the first discharging opening and the second discharging opening are both located in the bottom of the shell and are sequentially formed in the direction away from the feeding opening, and the first discharging opening and the second discharging opening both communicate with the washing and selecting space; the third discharging opening is formed in the side wall of the shell and is away from one side of the feeding opening. By means of the technical scheme, the problems that in the prior art, when gangue and clean coal in coal are separated, the technological process is long, and the washing efficiency of raw coal is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal washing, and in particular to a multi-stage washing device for a coal preparation plant. Background Art

[0002] A coal preparation plant is a coal processing plant that sorts coal, removes mineral impurities in the raw coal, and separates it into products of different specifications. A coal preparation plant is an indispensable part of the coal processing process.

[0003] The main products of a coal preparation plant are clean coal and lump coal, in addition to by-products such as medium coal and coal slime. When washing coal, a coal preparation plant needs to use a multi-stage washing device. The existing multi-stage washing device is generally composed of multiple parts, which are used to separate the gangue and clean coal in the coal respectively. The process flow is long, resulting in low efficiency in washing the raw coal, and it does not have the function of multi-stage washing, making it difficult to select the medium coal in the raw coal, which in turn leads to a reduction in the quality of the clean coal. Therefore, it needs to be improved. Utility Model Content

[0004] The utility model provides a multi-stage washing device for a coal preparation plant, which solves the problems of long process flow and low washing efficiency of raw coal when separating gangue and clean coal in the related technology.

[0005] The technical solution of the utility model is as follows: A multi-stage washing device for a coal preparation plant, comprising:

[0006] chassis;

[0007] A shell is arranged on the base frame, and a washing space is provided inside the shell;

[0008] A feed inlet is provided on one side of the shell, and the feed inlet is connected to the washing space;

[0009] The first discharge port and the second discharge port are both located at the bottom of the shell and are sequentially arranged in a direction away from the inlet, and the first discharge port and the second discharge port are both connected to the washing space;

[0010] The third discharge port is arranged on the side wall of the shell and away from the feed port.

[0011] Optionally, also include:

[0012] There are a plurality of fixing blocks, which are arranged on the housing;

[0013] There are a plurality of support plates, which are arranged on the base frame;

[0014] There are several first elastic members, with both ends respectively arranged on the support plate and the fixed block. The shell is arranged on the base frame through the support plate and the first elastic member. The first elastic member is used to provide a force for the fixed block to approach the support plate.

[0015] Optionally, the bottom of the washing space is an inclined surface, and the side of the inclined surface close to the material inlet is higher than the side close to the third material outlet, and further comprises:

[0016] The first feed plate and the second feed plate are both arranged in the washing space, and the first feed plate and the second feed plate are respectively located on the side of the first discharge port and the second discharge port away from the feed port.

[0017] Optionally, also include:

[0018] A first rotating shaft and a second rotating shaft are rotatably disposed on the support plate, wherein the first rotating shaft and the second rotating shaft both pass through the support plate;

[0019] A convex block is provided on the first rotating shaft and the second rotating shaft, and the convex block abuts against the bottom of the shell.

[0020] Optionally, the protrusion is elliptical.

[0021] Optionally, also include:

[0022] A first roller and a second roller are respectively arranged on the first rotating shaft and the second rotating shaft;

[0023] a transmission belt, arranged on the first roller and the second roller;

[0024] The first rotation driving member is arranged on the support plate, and is used for driving the first rotation shaft to rotate.

[0025] Optionally, also include:

[0026] A feeding rack, arranged on the base frame;

[0027] A mounting frame, arranged on the feeding frame, and provided with a guide slide;

[0028] A feed box is slidably arranged on the feed rack, and the feed box is located above the feed inlet;

[0029] A slider is arranged on the feed box, and the slider slides along the guide slideway.

[0030] Optionally, also include:

[0031] A limiting member is provided on the feed box, wherein the limiting member has a limiting groove, and the limiting groove is not collinear with the guide slideway;

[0032] A shift rod, rotatably arranged on the feed rack;

[0033] A round rod, with two ends respectively provided on the shifting rod and the sliding block, and the round rod slides along the limiting groove;

[0034] The second rotating driving member is arranged on the feeding rack, and the second rotating driving member is used to drive the shifting rod to rotate.

[0035] Optionally, also include:

[0036] A water inlet pipe is arranged on the shell, and the water inlet pipe passes through the shell and enters the washing space.

[0037] Optionally, also include:

[0038] A water outlet pipe is arranged in the washing space;

[0039] A water pump is arranged on the housing, and the water pump connects the water inlet pipe with the water outlet pipe.

[0040] The beneficial effects of the utility model are:

[0041] In the present invention, when washing raw coal, the washing space is first filled with a suspension, and the raw coal is placed into the shell through the feed port. The heavier gangue in the raw coal will sink to the bottom of the washing space and gradually flow with the suspension, eventually flowing out from the first and second discharge ports at the bottom of the washing space, while the lighter clean coal will be suspended in the suspension and eventually flow out from the third discharge port, thereby completing the multi-stage washing of the raw coal and improving the washing efficiency of the raw coal. The design of the shell and multiple discharge ports not only improves the washing efficiency and quality of the coal, but also optimizes the operating process and reduces maintenance costs. At the same time, it can also reduce the footprint of the device and reduce the cost of washing. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0043] Figure 1 This is a schematic diagram of the structure of the utility model;

[0044] Figure 2 This is a schematic diagram of the cross-sectional structure of the front side of the utility model;

[0045] Figure 3 It is a structural schematic diagram of the side surface of the utility model;

[0046] Figure 4 This is a schematic cross-sectional view of the side structure of the present invention;

[0047] Figure 5 It is a structural schematic diagram of the back side of the utility model.

[0048] In the figure: 1. Base frame, 5. Shell, 7. Feed port, 9. First discharge port, 11. Second discharge port, 12. Third discharge port, 4. Fixed block, 2. Support plate, 3. First elastic member, 8. First feed plate, 10. Second feed plate, 14. First rotating shaft, 16. Second rotating shaft, 19. Bump, 15. First roller, 17. Second roller, 18. Transmission belt, 13. First rotating drive member, 24. Feed rack, 25. Mounting rack, 27. Feed box, 26. Slider, 28. Limiting member, 32. Push rod, 20. Round rod, 30. Second rotating drive member, 22. Water inlet pipe, 23. Water outlet pipe, 21. Water pump. DETAILED DESCRIPTION

[0049] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0050] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0051] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0052] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0053] Reference Figures 1 to 5 , which is the first embodiment of the utility model, proposes a multi-stage washing device for a coal preparation plant, including: a shell 5 is arranged on a base frame 1, and a washing space is provided inside the shell 5; a feed port 7 is arranged on one side of the shell 5, and the feed port 7 is connected to the washing space; a first discharge port 9 and a second discharge port 11 are both located at the bottom of the shell 5 and are arranged in sequence in a direction away from the feed port 7, and the first discharge port 9 and the second discharge port 11 are both connected to the washing space; a third discharge port 12 is arranged on the side wall of the shell 5 and on a side away from the feed port 7.

[0054] In this embodiment, when washing raw coal, the suspension is first filled into the washing space, and the raw coal is placed into the shell 5 through the feed port 7. The heavier gangue in the raw coal will sink to the bottom of the washing space and gradually flow with the suspension, eventually flowing out from the first discharge port 9 and the second discharge port 11 at the bottom of the washing space, while the lighter clean coal will be suspended in the suspension and eventually flow out from the third discharge port 12, thereby completing the multi-stage washing of the raw coal and improving the washing efficiency of the raw coal. The design of the shell 5 and multiple discharge ports not only improves the washing efficiency and quality of the coal, but also optimizes the operating process and reduces maintenance costs. At the same time, it can also reduce the footprint of the device and reduce the cost of washing.

[0055] Furthermore, it also includes: a plurality of fixing blocks 4, which are arranged on the shell 5; a plurality of support plates 2, which are arranged on the base frame 1; a plurality of first elastic members 3, with both ends respectively arranged on the support plate 2 and the fixing block 4, and the shell 5 is arranged on the base frame 1 through the support plate 2 and the first elastic member 3, and the first elastic member 3 is used to provide a force for the fixing block 4 to approach the support plate 2.

[0056] In this embodiment, the presence of the first elastic member 3 provides elastic support for the housing 5, allowing it to vibrate slightly during the washing process, facilitating the thorough mixing of the material and the washing medium, thereby improving the separation of impurities. Furthermore, the elastic support reduces direct rigid contact between the housing 5 and the chassis 1, reducing wear caused by vibration, extending the service life of the equipment, and lowering maintenance costs. By adjusting the elastic force of the first elastic member 3, the equipment can adapt to materials of varying weights and volumes, as well as varying washing intensities, thereby enhancing its flexibility and adaptability.

[0057] Furthermore, the bottom of the washing space is a slope, and the side of the slope close to the feed port 7 is higher than the side close to the third discharge port 12. It also includes: the first feed plate 8 and the second feed plate 10 are both arranged in the washing space, and the first feed plate 8 and the second feed plate 10 are respectively located on the side of the first discharge port 9 and the second discharge port 11 away from the feed port 7.

[0058] In this embodiment, the inclined surface design at the bottom of the washing space allows the material to automatically slide toward the third discharge port 12 under the action of gravity, promoting material flow, improving washing efficiency and the continuity of material processing. The first feed plate 8 and the second feed plate 10 are in a 7-shaped configuration. The 7-shaped first and second feed plates 8, 10 effectively guide the flow of material, ensuring that material at the bottom can leave the washing space in a timely manner, avoiding localized accumulation and enhancing the washing effect.

[0059] Furthermore, it also includes: a first rotating shaft 14 and a second rotating shaft 16 are rotatably arranged on the support plate 2, and the first rotating shaft 14 and the second rotating shaft 16 both pass through the support plate 2; a protrusion 19 is arranged on the first rotating shaft 14 and the second rotating shaft 16, and the protrusion 19 abuts against the bottom of the shell 5, and the protrusion 19 is elliptical.

[0060] In this embodiment, when the first rotating shaft 14 and the second rotating shaft 16 rotate, the protrusion 19 can rotate accordingly. Since the protrusion 19 is not circular as a whole, the shell 5 will vibrate during rotation. The rotation of the protrusion 19 can produce a slight stirring effect inside the shell 5, which helps to fully mix the material with the washing medium, promotes the effective separation of impurities and coal, and improves the purity of the clean coal. At the same time, the dynamic contact of the protrusion 19 reduces the direct friction between the bottom of the shell 5 and the fixed structure, reduces the wear inside the equipment, extends the service life of the equipment, and reduces maintenance costs. The elliptical protrusion 19 does not produce violent vibrations when rotating, and can reduce noise while ensuring the washing effect.

[0061] Furthermore, it also includes: a first roller 15 and a second roller 17 are respectively arranged on the first rotating shaft 14 and the second rotating shaft 16; a transmission belt 18 is arranged on the first roller 15 and the second roller 17; a first rotating driving member 13 is arranged on the support plate 2, and the first rotating driving member 13 is used to drive the first rotating shaft 14 to rotate.

[0062] In this embodiment, the drive belt 18 and roller system ensure the synchronous and stable rotation of the protrusions 19, producing a more uniform and effective vibration effect, promoting thorough mixing of the material and the washing medium, and improving the separation of impurities from the coal. The design of the first rotating drive member 13 automates the rotation control of the equipment, reducing manual intervention, improving the equipment's intelligence, and simplifying the operation process. Through the precise control of the first rotating drive member 13, the equipment can adapt to the requirements of different washing processes, enhancing its adaptability and versatility.

[0063] Furthermore, it also includes: a feed rack 24 is arranged on the base frame 1; a mounting rack 25 is arranged on the feed rack 24, and the mounting rack 25 has a guide slide; a feed box 27 is slidably arranged on the feed rack 24, and the feed box 27 is located above the feed port 7; a slider 26 is arranged on the feed box 27, and the slider 26 slides along the guide slide.

[0064] In this embodiment, the provision of the feed box 27 allows the material to be pre-stored and evenly fed into the washing and sorting space, avoiding the uneven distribution of the material when it is directly poured in, and improving the continuity and efficiency of the material feeding. The sliding movement of the feed box 27 allows the material to be more evenly fed into the washing and sorting space. The design of the slider 26 and the mounting bracket 25 ensures the stable sliding of the feed box 27, preventing the feed box 27 from vibrating violently and causing unstable feeding.

[0065] Furthermore, it also includes: a limit member 28 is arranged on the feed box 27, and the limit member 28 has a limit groove, which is not colinear with the guide slide; a shift rod 32 is rotatably arranged on the feed rack 24; the two ends of the round rod 20 are respectively arranged on the shift rod 32 and the slider 26, and the round rod 20 slides along the limit groove; a second rotating drive member 30 is arranged on the feed rack 24, and the second rotating drive member 30 is used to drive the shift rod 32 to rotate.

[0066] In this embodiment, the second rotating drive member 30 drives the lever 32 to rotate, and the round rod 20 then slides along the limiting groove on the limiting member 28, thereby achieving precise control of the opening and closing degree of the feed box 27, ensuring a stable and uniform material flow, and improving the efficiency and effectiveness of the washing process. The design of the limiting member 28 and the limiting groove ensures the smooth sliding of the slider 26, avoids blockage or uneven distribution during the material feeding process, optimizes the material processing process, and improves the stability and reliability of the equipment. The integrated design of the limiting member 28, the lever 32, the round rod 20, and the second rotating drive member 30 reduces the internal complexity of the equipment, simplifies the maintenance process, and reduces maintenance costs.

[0067] Furthermore, it also includes: a water inlet pipe 22 is arranged on the shell 5, and the water inlet pipe 22 passes through the shell 5 and enters the washing space.

[0068] In this embodiment, the water inlet pipe 22 directly delivers washing water into the washing space, ensuring timely replenishment and sufficient supply of washing medium, improving the efficiency and continuity of the washing process. The design of the water inlet pipe 22 is compatible with different water sources and water treatment systems, enhancing the flexibility and adaptability of the equipment and adapting to different washing processes and water quality conditions.

[0069] Furthermore, it also includes: a water outlet pipe 23 is arranged in the washing space; a water pump 21 is arranged on the shell 5, and the water pump 21 connects the water inlet pipe 22 with the water outlet pipe 23.

[0070] In this embodiment, the addition of water pump 21 allows for precise control of the flow rate and pressure of the water circulation, optimizing the hydraulic conditions within the washing space, ensuring uniform distribution and efficient utilization of the washing medium, and improving washing efficiency. The water circulation system reduces the need for fresh water, lowers the demand for water treatment and filtration systems, and reduces the frequency and cost of equipment maintenance.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A multi-stage washing device for a coal preparation plant, characterized in that: include: bottom frame (1); A shell (5) is arranged on the base frame (1), and a washing space is provided inside the shell (5); A feed inlet (7) is provided on one side of the shell (5), and the feed inlet (7) is communicated with the washing space; The first discharge port (9) and the second discharge port (11) are both located at the bottom of the shell (5) and are arranged in sequence in a direction away from the feed port (7), and the first discharge port (9) and the second discharge port (11) are both communicated with the washing space; The third discharge port (12) is arranged on a side of the side wall of the shell (5) and away from the feed port (7).

2. A multi-stage washing device for a coal preparation plant according to claim 1, characterized in that: Also includes: A plurality of fixing blocks (4) are provided on the housing (5); A plurality of support plates (2) are provided on the base frame (1); There are a plurality of first elastic members (3), with two ends respectively arranged on the support plate (2) and the fixing block (4); the housing (5) is arranged on the base frame (1) through the support plate (2) and the first elastic member (3); the first elastic member (3) is used to provide a force for the fixing block (4) to approach the support plate (2).

3. The multi-stage washing device for coal preparation plants according to claim 1, characterized in that: The bottom of the washing space is a slope, and the side of the slope close to the feed port (7) is higher than the side close to the third discharge port (12), and further comprises: The first feed plate (8) and the second feed plate (10) are both arranged in the washing space, and the first feed plate (8) and the second feed plate (10) are respectively located on the side of the first discharge port (9) and the second discharge port (11) away from the feed port (7).

4. A multi-stage washing device for a coal preparation plant according to claim 2, characterized in that: Also includes: A first rotating shaft (14) and a second rotating shaft (16) are rotatably arranged on the support plate (2), and the first rotating shaft (14) and the second rotating shaft (16) both pass through the support plate (2); A convex block (19) is provided on the first rotating shaft (14) and the second rotating shaft (16), and the convex block (19) abuts against the bottom of the housing (5).

5. The multi-stage washing device for coal preparation plants according to claim 4, characterized in that: The convex block (19) is elliptical.

6. The multi-stage washing device for coal preparation plants according to claim 4, characterized in that: Also includes: A first roller (15) and a second roller (17), respectively arranged on the first rotating shaft (14) and the second rotating shaft (16); A transmission belt (18) is arranged on the first roller (15) and the second roller (17); A first rotating drive member (13) is provided on the support plate (2), and the first rotating drive member (13) is used to drive the first rotating shaft (14) to rotate.

7. The multi-stage washing device for coal preparation plants according to claim 1, characterized in that: Also includes: A feeding rack (24) is arranged on the base frame (1); A mounting frame (25) is arranged on the feed frame (24), and the mounting frame (25) has a guide slide; A feed box (27) is slidably mounted on the feed rack (24), and the feed box (27) is located above the feed inlet (7); A slider (26) is provided on the feed box (27), and the slider (26) slides along the guide slideway.

8. The multi-stage washing device for coal preparation plants according to claim 7, characterized in that: Also includes: A limiting member (28) is provided on the feed box (27), wherein the limiting member (28) has a limiting groove, and the limiting groove is not collinear with the guide slideway; A shifting rod (32) is rotatably mounted on the feed rack (24); A round rod (20), both ends of which are respectively arranged on the shifting rod (32) and the sliding block (26), and the round rod (20) slides along the limiting groove; A second rotating driving member (30) is provided on the feeding rack (24), and the second rotating driving member (30) is used to drive the shifting rod (32) to rotate.

9. The multi-stage washing device for coal preparation plants according to claim 1, characterized in that: Also includes: A water inlet pipe (22) is provided on the shell (5), and the water inlet pipe (22) passes through the shell (5) and enters the washing space.

10. The multi-stage washing device for coal preparation plants according to claim 9, characterized in that: Also includes: A water outlet pipe (23) is arranged in the washing space; A water pump (21) is provided on the housing (5), and the water pump (21) connects the water inlet pipe (22) and the water outlet pipe (23).

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