Coal-based solid waste classification screening equipment

Abstract

The utility model discloses coal-based solid waste classification screening equipment, and particularly relates to the technical field of screening, which is used for coal-based solid waste classification screening and comprises a screening box, a vibration motor is fixedly connected to the screening box, a screening structure and a screen are sequentially arranged in the screening box from top to bottom, and a material guide plate is fixedly connected to the interior of the screening box. The guide plate is positioned between the screening structure and the screen; a first discharge port is formed in one side of the screening box and corresponds to one end of the screening structure, a second discharge port is formed in the other side of the screening box and corresponds to one end of the screen, and a third discharge port is formed in the bottom of the screening box. An output rod is arranged on the other side of the screening box and driven by a motor, and a pair of inclination adjusting structures used for adjusting the inclination of the screening structure and the screen is arranged on the output rod. The coal gangue grading and screening device solves the technical problems that grading and screening treatment of coal gangue is poor, and the blanking speed regulation and control mode is single.

Description

Technical Field

[0001] This utility model relates to the field of screening technology, and more specifically, to a coal-based solid waste grading and screening device. Background Technology

[0002] Coal-based solid waste refers to the solid waste generated during coal mining and conversion, mainly including coal gangue, desulfurization gypsum, fly ash, and gasification slag. Because coal-based solid waste contains both large pieces of coal gangue and small pieces of fly ash, both typically require screening. Screening ensures the rational utilization and treatment of coal gangue and fly ash, reducing potential environmental hazards.

[0003] For example, the utility model with patent publication number CN222369536U is a screening device for coal-based solid waste, relating to the field of coal-based solid waste screening equipment. The technical solution is a screening device for coal-based solid waste, including a screening box with an inclined screen inside. The beneficial effects of this utility model are that the entire device achieves fully automated operation, not only eliminating the tediousness and inconvenience of manual collection but also ensuring the high efficiency and accuracy of the screening process, thereby significantly improving overall work efficiency.

[0004] In the aforementioned patent, the inventors argued that during the screening of coal gangue and fly ash, because coal gangue has different sizes, using only a screen to screen coal gangue and fly ash makes it impossible to further grade the coal gangue, resulting in insufficient screening effect. In addition, because the screen's position design is relatively fixed, its single inclination setting means that the feeding speed of coal-based solid waste can only be adjusted by the vibration frequency of the vibrating equipment. Due to the single method of feeding speed control, this increases the maintenance difficulty and cost of the vibrating equipment. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the technical problems of poor grading and screening of coal gangue and the single method of controlling the feeding speed.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coal-based solid waste grading and screening device for grading and screening coal-based solid waste, including a screening box, a vibration motor fixedly connected to the screening box, a screening structure and a screen arranged sequentially from top to bottom inside the screening box, and a guide plate fixedly connected inside the screening box, the guide plate being located between the screening structure and the screen.

[0007] A discharge port one is provided on one side of the screening box and at one end corresponding to the screening structure; a discharge port two is provided on the other side of the screening box and at one end corresponding to the screen; and a discharge port three is provided at the bottom of the screening box.

[0008] An output rod is provided on the other side of the screening box, and a pair of tilt adjustment structures are provided on the output rod for adjusting the screening structure and the tilt of the screen.

[0009] In a preferred embodiment, the screening structure includes a screen plate, one end of which is rotatably connected to the inner wall of the screening box via a rotating shaft. A screening trough is provided on the screen plate, and multiple screen columns are fixedly connected at intervals in the screening trough. The discharge port is located on one side of the screen plate.

[0010] In a preferred embodiment, a fixing column is fixedly connected to a plurality of screen columns, the fixing column being located below the screen columns.

[0011] In a preferred embodiment, a through groove is provided on the other side of the screening box, and the other end of the screen plate passes through the through groove.

[0012] In a preferred embodiment, one end of the screen is rotatably connected to the inner wall of the screening box via a rotating shaft, and the other end of the screen is fixedly connected to an extension plate, which passes through the discharge port 2.

[0013] In a preferred embodiment, the guide plate is located between the screening structure and the screen.

[0014] In a preferred embodiment, a bearing seat is fixedly connected to the other side of the screening box, and the output rod is rotatably connected to the bearing seat.

[0015] In a preferred embodiment, the tilt adjustment structure includes an eccentric disk, which is fixedly connected to the output rod. A pair of eccentric columns are fixedly connected to the eccentric disk, and a pull rod is rotatably connected to each eccentric column. The pair of pull rods are rotatably connected to the sides of the sieve plate and the extension plate respectively via a rotating shaft.

[0016] In a preferred embodiment, the top of the screening box is fixedly connected to a hopper.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. This coal-based solid waste grading and screening equipment combines a screening structure and a screen. Utilizing the vibration of a vibrating motor, the screening structure can achieve two-stage screening of coal gangue by size, while the screen can further screen coal gangue and fly ash into lumps and powders. This improves the fineness of the screening and meets the requirements for multi-stage screening of coal-based solid waste.

[0019] 2. This coal-based solid waste grading and screening equipment uses a motor to drive the output rod to rotate. The rotation of the output rod at a specified angle can be used to synchronously adjust the angle of the screening structure and the screen through a corresponding tilt adjustment structure. This is intended to quickly adjust the tilt of the screening structure and the screen, thus effectively adjusting the feeding speed of the coal-based solid waste screening, making it more economical and convenient. Therefore, by combining the tilt adjustment structure with a frequency-adjustable vibration motor, the optimal screening effect of coal-based solid waste can be achieved, satisfying the versatility of coal-based solid waste feeding speed adjustment. Attached Figure Description

[0020] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a coal-based solid waste grading and screening device according to the present invention;

[0022] Figure 2 This utility model Figure 1 Cross-sectional view of the screening box;

[0023] Figure 3 This is a cross-sectional view of the screening box of this utility model;

[0024] Figure 4 This is a schematic diagram of the screening structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the tilt adjustment structure and output rod of this utility model.

[0026] The attached diagram is labeled as follows: 1. Screening box; 2. Screening structure; 21. Screen plate; 22. Screening trough; 23. Screen column; 3. Screen mesh; 4. Guide plate; 5. Discharge port one; 6. Discharge port two; 7. Discharge port three; 8. Output rod; 9. Inclination adjustment structure; 91. Eccentric disc; 92. Eccentric column; 93. Tie rod; 10. Hopper; 11. Through slot; 12. Fixed column; 13. Extension plate; 14. Bearing seat; 15. Vibration motor. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] See also Figures 1-5 This utility model provides a coal-based solid waste grading and screening equipment for grading and screening coal-based solid waste, including a screening box 1, on which a vibration motor 15 is fixedly connected.

[0029] The vibrating motor 15 can act on the screening box 1 to provide vibration force for the screening of coal-based solid waste, which can promote the movement of the coal-based solid waste screening. The vibrating motor 15 can be controlled by connecting to an existing power controller.

[0030] In this embodiment: the top of the screening box 1 is fixedly connected to the hopper 10.

[0031] The opening provided by the hopper 10 allows coal-based solid waste to be easily introduced into the screening box 1.

[0032] In this embodiment: a screening structure 2 is provided inside the screening box 1. The screening structure 2 includes a screen plate 21. One end of the screen plate 21 is rotatably connected to the inner wall of the screening box 1 through a rotating shaft. A screening trough 22 is provided on the screen plate 21. Multiple screen columns 23 are fixedly connected at intervals in the screening trough 22. The discharge port 5 is located on one side of the screen plate 21.

[0033] The rotating arrangement at one end of the screen plate 21 provides a pivot point for subsequent angle adjustment. With multiple screen columns 23 spaced apart, when coal-based solid waste enters the screening box 1 and falls onto the screening structure 2, the vibration force provided by the vibrating motor 15 and the inclined arrangement of the screen columns 23 allow fly ash and some coal gangue to be discharged through the gaps between adjacent screen columns 23. Larger coal gangue can roll on the screen columns 23 until it is discharged through the designated discharge position, thus enabling the coal gangue to achieve a multi-stage screening effect.

[0034] In this embodiment: a fixing column 12 is fixedly connected to multiple screen columns 23, and the fixing column 12 is located below the screen column 23.

[0035] The fixed column 12 can be used to improve the connection strength of multiple screen columns 23.

[0036] In this embodiment: a through groove 11 is provided on the other side of the screening box 1, and the other end of the screen plate 21 passes through the through groove 11.

[0037] The extension at one end of the sieve plate 21 can provide a traction fulcrum for subsequent angle adjustment.

[0038] In this embodiment: a screen 3 is provided inside the screening box 1, and one end of the screen 3 is rotatably connected to the inner wall of the screening box 1 via a rotating shaft.

[0039] The screen 3 is positioned below the screening structure 2, and the screen 3 is inclined in a mirror manner to the screen column 23. When fly ash and some coal gangue are discharged through the gap between adjacent screen columns 23, the fly ash and some coal gangue can fall onto the screen 3. Utilizing the screen hole structure on the screen 3, fly ash can be easily screened out, while some coal gangue can roll on the screen 3 to the designated discharge position. The rotation setting at one end of the screen 3 can provide a rotation fulcrum for subsequent angle adjustment.

[0040] In this embodiment: a guide plate 4 is fixedly connected inside the screening box 1, and the guide plate 4 is located between the screening structure 2 and the screen 3.

[0041] The guide plate 4 is inclined inside the screening box 1, and the fly ash and some coal gangue falling from the screening structure 2 can be guided into the first part of the screen 3 through the guide plate 4.

[0042] In this embodiment: one end of the screen 3 is rotatably connected to the inner wall of the screening box 1 via a rotating shaft, and the other end of the screen 3 is fixedly connected to an extension plate 13, which passes through the discharge port 6.

[0043] The extension plate 13 allows the screen 3 to be concentrated in the screening box 1 for screening coal-based solid waste, and the extension plate 13 can promote the rolling of coal gangue to the designated discharge position.

[0044] In this embodiment: a discharge port 5 is provided on one side of the screening box 1 and at one end corresponding to the screening structure 2; a discharge port 6 is provided on the other side of the screening box 1 and at one end corresponding to the screen 3; and a discharge port 7 is provided at the bottom of the screening box 1.

[0045] Discharge port 1 5 provides a discharge location for large-sized coal gangue rolling on screen column 23, discharge port 2 6 provides a discharge location for coal gangue on screen 3, and discharge port 3 7 provides a discharge location for fly ash. In this application, the inner bottom of the screening box 1 is set in a Y-shaped structure, which facilitates centralized discharge of fly ash.

[0046] In this embodiment: an output rod 8 is provided on the other side of the screening box 1. The output rod 8 is driven by a motor. A bearing seat 14 is fixedly connected to the other side of the screening box 1. The output rod 8 is rotatably connected to the bearing seat 14.

[0047] The bearing housing 14 can stabilize the rotation position of the output rod 8. The motor that drives the output rod 8 can be a self-locking motor. The self-locking motor can be fixedly connected to the screening box 1, and the self-locking motor can be connected to the existing controller through wires for rotation control.

[0048] In this embodiment: the output rod 8 is provided with a pair of tilt adjustment structures 9 for adjusting the tilt of the screening structure 2 and the screen 3. The tilt adjustment structure 9 includes an eccentric disk 91, which is fixedly connected to the output rod 8. A pair of eccentric columns 92 are fixedly connected to the eccentric disk 91. Each eccentric column 92 is rotatably connected to a pull rod 93. The pair of pull rods 93 are rotatably connected to the sides of the screen plate 21 and the extension plate 13 respectively through a rotating shaft.

[0049] In use, the output rod 8 is driven to rotate to a specified angle by the self-locking motor. The rotation of the output rod 8 can drive the eccentric disk 91 to rotate, and the pair of eccentric columns 92 on the eccentric disk 91 can pull the pull rod 93 to move. Since the screen plate 21 and the screen mesh 3 are both connected to the screening box 1 by rotating shafts, the action of the pull rod 93 can synchronously change the inclination of the screen plate 21 and the screen mesh 3. With the purpose of changing the inclination of the screen plate 21 and the screen mesh 3, the feeding speed of coal-based solid waste can be adjusted, which is more economical and convenient.

[0050] Therefore, by combining the existing technology of adjustable vibration frequency of vibrating motor 15 with tilt adjustment structure 9, the best screening effect of coal-based solid waste can be achieved, satisfying the diversity of coal-based solid waste feeding speed adjustment, and effectively avoiding the increase in maintenance cost and difficulty of subsequent vibration equipment caused by simply using vibrating motor 15 to adjust vibration frequency to adjust screening feeding speed.

Claims

1. A coal-based solid waste fractionation screening apparatus for coal-based solid waste fractionation, comprising a screening box (1), characterized in that: The vibrating motor (15) is fixedly connected to the screening box (1), the screening structure (2) and the screen (3) are sequentially arranged in the screening box (1) from top to bottom, and the guide plate (4) is fixedly connected to the inside of the screening box (1). One end of the screening structure (2) is provided with the discharge port one (5) on one side of the screening box (1), one end of the screen (3) is provided with the discharge port two (6) on the other side of the screening box (1), and the discharge port three (7) is arranged at the bottom of the screening box (1). The output rod (8) is arranged on the other side of the screening box (1), and a pair of inclination adjustment structures (9) for adjusting the inclination of the screening structure (2) and the screen (3) are arranged on the output rod (8).

2. A coal-based solid waste fractional screening apparatus according to claim 1, characterized in that: The screening structure (2) comprises a screen plate (21), one end of the screen plate (21) is rotatably connected to the inner wall of the screening box (1) through a rotating shaft, a screening groove (22) is formed in the screen plate (21), a plurality of screen columns (23) are fixedly connected in the screening groove (22) at intervals, and the discharge port one (5) is arranged on one side of the screen plate (21).

3. A coal-based solid waste fractional screening apparatus according to claim 2, characterized in that: A plurality of screen columns (23) are fixedly connected with a fixed column (12), and the fixed column (12) is located below the screen column (23).

4. A coal-based solid waste fractional screening apparatus according to claim 3, characterized in that: A through groove (11) is formed in the other side of the screening box (1), and the other end of the screen plate (21) passes through the through groove (11).

5. A coal-based solid waste fractional screening apparatus according to claim 2, characterized in that: One end of the screen (3) is rotatably connected to the inner wall of the screening box (1) through a rotating shaft, the other end of the screen (3) is fixedly connected with an extension plate (13), and the extension plate (13) passes through the discharge port two (6).

6. A coal-based solid waste fractional screening apparatus according to claim 1, characterized in that: The guide plate (4) is located between the screening structure (2) and the screen (3).

7. A coal-based solid waste fractional screening apparatus according to claim 1, characterized in that: A bearing seat (14) is fixedly connected to the other side of the screening box (1), and the output rod (8) is rotatably connected to the bearing seat (14).

8. A coal-based solid waste fractional screening apparatus according to claim 5, characterized in that: The inclination adjustment structure (9) comprises an eccentric disc (91), the eccentric disc (91) is fixedly connected to the output rod (8), a pair of eccentric columns (92) are fixedly connected to the eccentric disc (91), a pull rod (93) is rotatably connected to each eccentric column (92), and the pair of pull rods (93) are rotatably connected to the side surfaces of the screen plate (21) and the extension plate (13) through rotating shafts.

9. A coal-based solid waste fractional screening apparatus according to claim 1, characterized in that: The hopper (10) is fixedly connected to the top of the screening box (1).

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