A device for washing and selecting coking coal raw coal

Abstract

The utility model relates to coking coal technical field, a kind of for coking coal raw coal's washing and selecting gangue discharging device, including unloading shell, further include: support leg fixed on the surface of unloading shell, the side fixed connection of unloading shell has connecting plate, the top of the connecting plate inner cavity is provided with the first conveying device for conveying coal slime use. The utility model first through flow guide mechanism, can be separated into two discharge ports in unloading shell, and flow guide mechanism can adjust unloading port, directly ship middlings to the first conveying device on belt and recycle, by increasing middlings recycling system, middlings recycling, to reduce low-ash middlings, low-ash coal slime waste, through raw coal rapid sinking and floating test, judge raw coal belongs to gangue easy to sort coal kind, middlings, low-ash coal kind of coal, take the above three measures, middlings, coal slime is recycled, reduce material waste, improve clean coal yield, reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of coking coal technology, specifically to a washing and waste disposal device for raw coking coal. Background Technology

[0002] Coking coal is a high-quality bituminous coal used to produce metallurgical coke. It has strong caking properties and low to medium volatile matter content. During high-temperature dry distillation and coking, it can form high-strength coke, which is used in blast furnace ironmaking.

[0003] Most current coal plant heavy media coal preparation processes employ a three-product heavy media hydrocyclone + coal slime heavy media + flotation process with unpressurized raw coal feeding without desliming or grading. This process has significant advantages for difficult-to-process and extremely difficult-to-process coal types. However, with the development of coking coal resources and changes in mining techniques, the content of fine coal in raw coal has increased, and the defects of the original coal slime water treatment process system have gradually become apparent. This has led to the waste of clean coal in the coal slime heavy media separation system and flotation system. At the same time, the excessively long processing time has resulted in low washing efficiency, an increase in the number of operating equipment, an increase in process power consumption, and an increase in medium consumption during the washing process, thus increasing washing costs. Utility Model Content

[0004] The purpose of this invention is to provide a washing and waste disposal device for coking coal raw coal to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a washing and waste disposal device for coking coal, comprising a discharge shell, and further comprising:

[0006] Support legs fixed to the surface of the unloading shell; a connecting plate is fixedly connected to one side of the unloading shell; a first conveying device for conveying coal slime is provided at the top of the inner cavity of the connecting plate; and a second conveying device for conveying clean coal is provided on one side of the inner cavity of the connecting plate.

[0007] A flow guiding mechanism is fixed to one side of the unloading shell. The flow guiding mechanism includes a servo motor. A flow divider plate is fixedly connected inside the unloading shell. A guide plate is fixedly connected between the two connecting plates. A retaining plate is fixedly connected to the surface of the guide plate.

[0008] Preferably, a guide plate is fixedly connected to one side of the unloading shell, and an inclined plate is fixedly connected to one side of the connecting plate.

[0009] Preferably, the inner cavity of the unloading shell is provided with two screening plates, and the top and bottom of the screening plates are provided with positioning plates that are fixedly connected to the inner wall of the unloading shell.

[0010] Preferably, the screening plate is internally slidably connected to a limiting rod that is fixed to a positioning plate, and a spring is fixedly connected between the bottom of the screening plate and the positioning plate.

[0011] Preferably, the servo motor is fixed to one side of the unloading shell, the output end of the servo motor extends through to the outside of the unloading shell and is fixedly connected to a first gear, the top of the first gear is meshed with a second gear, the front side of the second gear is fixedly connected to a drive rod extending into the interior of the unloading shell, and the surface of the drive rod is fixedly connected to a partition plate.

[0012] Preferably, a slider is fixedly connected to one side of the partition plate, and a limiting groove with the drive rod as the central axis is opened inside the unloading shell.

[0013] Preferably, the surface of the slider is slidably connected to the inside of the limiting groove, and one end of the drive rod is rotatably connected to the inner wall of the unloading shell through a bearing.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention firstly uses a flow guiding mechanism to divide the inside of the unloading shell into two discharge ports. The flow guiding mechanism can adjust the discharge ports to directly transport the middlings to the first conveyor belt for recycling. By adding a middlings recycling system, the middlings are recycled to reduce the waste of low-ash middlings and low-ash coal slime. Through rapid sinking and floating tests of raw coal, it is determined that the raw coal belongs to the type of coal that is easy to separate from gangue, and the middlings and fine coal have low ash content. By taking the above three measures, the middlings and coal slime are fully recycled, reducing material waste, increasing the yield of clean coal, and reducing costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a washing and waste disposal device for coking coal of the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0018] Figure 3 This is a cross-sectional view of the connecting plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the flow guiding mechanism of this utility model.

[0020] In the diagram: 1. Unloading shell; 2. Support leg; 3. Connecting plate; 4. First conveying device; 5. Second conveying device; 6. Flow guiding mechanism; 601. Servo motor; 602. First gear; 603. Second gear; 604. Drive rod; 605. Divider plate; 606. Slider; 607. Limiting groove; 7. Diverter plate; 8. Flow guide plate; 9. Inclined plate; 10. Screening plate; 11. Positioning plate; 12. Limiting rod; 13. Spring; 14. Guide plate; 15. Fixing plate. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] Please see Figure 1-4 As shown, a washing and gangue removal device for coking coal includes a discharge shell 1 and a support leg 2 fixed to the surface of the discharge shell 1. A connecting plate 3 is fixedly connected to one side of the discharge shell 1. A first conveying device 4 for conveying coal slime is provided at the top of the inner cavity of the connecting plate 3, and a second conveying device 5 for conveying clean coal is provided on one side of the inner cavity of the connecting plate 3.

[0023] A flow guiding mechanism 6 is fixed to one side of the unloading shell 1. The flow guiding mechanism 6 includes a servo motor 601. A flow diverting plate 7 is fixedly connected inside the unloading shell 1. A guide plate 14 is fixedly connected between two connecting plates 3. A fixing plate 15 is fixedly connected to the surface of the guide plate 14. The support legs 2 facilitate stable support for the unloading shell 1, while the unloading shell 1 facilitates the support and fixation of the two connecting plates 3. A first conveying device 4 and a second conveying device 5 are set inside the connecting plates 3. The first conveying device 4 and the second conveying device 5 are composed of a drive motor, a meshing wheel, and a belt. The principle is that the motor drives the meshing wheel to rotate. The conveyor belt is used for transporting, which is existing technology and can be clearly understood by those skilled in the art, so it will not be described in detail here. A guide mechanism 6 is set in the middle of the unloading shell 1 to adjust the position of the unloading discharge. The diverter plate 7 can assist in guiding and separating the unloaded coking coal. The guide plate 14 can assist in guiding the material inlet position of the first conveying device 4 to prevent the middlings from falling between the first conveying device 4 and the second conveying device 5. The fixing plate 15 is fixed on the guide plate 14 and can separate and transport the middlings that are subsequently screened.

[0024] A guide plate 8 is fixedly connected to one side of the unloading shell 1, and an inclined plate 9 is fixedly connected to one side of the connecting plate 3. Two screening plates 10 are installed inside the unloading shell 1. Positioning plates 11, which are fixedly connected to the inner wall of the unloading shell 1, are installed at the top and bottom of each screening plate 10. Limiting rods 12, which are fixed to the positioning plates 11, are slidably connected inside the screening plates 10. A spring 13 is fixedly connected between the bottom of the screening plates 10 and the positioning plates 11. The guide plate 8, in conjunction with the inclined plate 9, allows the diverted coking coal or raw coal to form... The limiting guide prevents the coal from falling directly onto the first conveying device 4 without passing through the screening plate 10. The screening plate 10 can screen out two different specifications of middlings: coarse fine coal can be used directly for coking, while fine coal can be used as power coal or blended for sale. Finally, it is discharged onto the first conveying device 4 for conveying. However, at the moment the middlings fall onto the screening plate 10, the screening plate 10 will move to a limit on the surface of the limiting rod 12 and compress the spring 13. Combined with the up-and-down elastic vibration of the spring 13, the middlings are screened.

[0025] A servo motor 601 is fixed to one side of the unloading shell 1. The output end of the servo motor 601 extends through to the outside of the unloading shell 1 and is fixedly connected to a first gear 602. A second gear 603 is meshed with the top of the first gear 602. A drive rod 604 extending into the interior of the unloading shell 1 is fixedly connected to the front side of the second gear 603. A partition plate 605 is fixedly connected to the surface of the drive rod 604. A slider 606 is fixedly connected to one side of the partition plate 605. A limiting groove 607 with the drive rod 604 as the central axis is opened inside the unloading shell 1. The surface of the slider 606 is slidably connected to the inside of the limiting groove 607. One end of 604 is rotatably connected to the inner wall of the unloading shell 1 via a bearing. When the user needs to adjust the position of the discharge chute inside the unloading shell 1, the servo motor 601 is turned on. The output end of the servo motor 601 drives the first gear 602 to mesh with the second gear 603 to rotate. When the second gear 603 rotates, it will drive the drive rod 604 to rotate. When the drive rod 604 rotates, it will drive the partition plate 605 to move in conjunction with the slider 606 within the limiting groove 607, thereby separating the discharge position of the unloading shell 1, so as to facilitate the discharge of the required medium coal from the other side to the first conveying device 4 for subsequent processing.

[0026] Working principle: The top of the unloading shell 1 serves as the feed end. When the user needs to unload the medium coal onto the first conveying device 4, the servo motor 601 is activated. The output of the servo motor 601 drives the first gear 602 to mesh with the second gear 603, causing them to rotate. The rotation of the second gear 603 drives the drive rod 604, which in turn drives the partition plate 605 and the slider 606 to move within the limiting groove 607. This creates a two-stage discharge position on the unloading shell 1, facilitating the discharge of the required medium coal from the other side onto the first conveying device 4 for subsequent processing. Simultaneously, as the medium coal is separated by the partition plate 605, it slides through the diversion plate 7 between the guide plates 8 and then falls onto the top of the screening plate 10. The screening plate 10 can screen middlings into two different specifications. The coarse-grained clean coal can be used directly for coking, while the fine-grained coal can be used as power coal or blended for sale. However, at the moment the middlings fall onto the screening plate 10, the screening plate 10 will move to a limit position on the surface of the limiting rod 12 and compress the spring 13. Combined with the up-and-down elastic vibration of the spring 13, the middlings are screened. Finally, the middlings fall onto the first conveying device 4. The first conveying device 4 and the second conveying device 5 are composed of a drive motor, a meshing wheel, and a belt. The principle is that the motor drives the meshing wheel to rotate and the belt to convey the middlings. Together with the fixing plate 15, the two different specifications of middlings are conveyed. Then, driven by the first conveying device 4, the middlings are conveyed to the second conveying device 5, which facilitates subsequent processing and use.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A washing and waste disposal device for coking coal, comprising a discharge shell (1), characterized in that, Also includes: Support legs (2) are fixed to the surface of the unloading shell (1). A connecting plate (3) is fixedly connected to one side of the unloading shell (1). A first conveying device (4) for conveying coal slime is provided at the top of the inner cavity of the connecting plate (3). A second conveying device (5) for conveying fine coal is provided on one side of the inner cavity of the connecting plate (3). A flow guiding mechanism (6) is fixed to one side of the unloading shell (1). The flow guiding mechanism (6) includes a servo motor (601). A flow divider (7) is fixedly connected inside the unloading shell (1). A guide plate (14) is fixedly connected between the two connecting plates (3). A retaining plate (15) is fixedly connected to the surface of the guide plate (14).

2. The washing and waste disposal device for coking coal as described in claim 1, characterized in that: A guide plate (8) is fixedly connected to one side of the unloading shell (1), and an inclined plate (9) is fixedly connected to one side of the connecting plate (3).

3. The washing and waste disposal device for coking coal as described in claim 1, characterized in that: The inner cavity of the unloading shell (1) is provided with two screening plates (10), and the top and bottom of the screening plates (10) are provided with positioning plates (11) that are fixedly connected to the inner wall of the unloading shell (1).

4. A washing and waste disposal device for coking coal as described in claim 3, characterized in that: The screening plate (10) is internally slidably connected to a limiting rod (12) fixed to the positioning plate (11), and a spring (13) is fixedly connected between the bottom of the screening plate (10) and the positioning plate (11).

5. A washing and waste disposal device for coking coal as described in claim 4, characterized in that: The servo motor (601) is fixed to one side of the unloading shell (1). The output end of the servo motor (601) extends through to the outside of the unloading shell (1) and is fixedly connected to a first gear (602). The top of the first gear (602) is meshed with a second gear (603). The front side of the second gear (603) is fixedly connected to a drive rod (604) that extends through to the inside of the unloading shell (1). A partition plate (605) is fixedly connected to the surface of the drive rod (604).

6. A washing and waste disposal device for coking coal as described in claim 5, characterized in that: A slider (606) is fixedly connected to one side of the partition plate (605), and a limiting groove (607) with the drive rod (604) as the central axis is provided inside the unloading shell (1).

7. A washing and waste disposal device for coking coal as described in claim 6, characterized in that: The surface of the slider (606) is slidably connected to the inside of the limiting groove (607), and one end of the drive rod (604) is rotatably connected to the inner wall of the unloading shell (1) through a bearing.

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