Comprehensive coal gangue recycling device

Abstract

The utility model relates to the technical field of coal gangue screening, in particular to a comprehensive coal gangue recycling device. According to the technical scheme, the device comprises a material box, a mounting frame and a screening barrel, the material box is arranged in the upper end of the mounting frame, the screening barrel is arranged below the material box, a vibration motor is arranged at the upper end of the screening barrel, the screening barrel and the material box are both annular, and a first screening hopper and a second screening hopper are arranged on the inner wall of the screening barrel; the specification of meshes in the first screening hopper is larger than that of meshes in the second screening hopper, the first screening hopper and the second screening hopper are both in a funnel shape, the centers of the first screening hopper and the second screening hopper are open, a conveying pipe is arranged at the lower end of the second screening hopper, a supporting ring is arranged in the lower end of the mounting frame, a spring is arranged at the upper end of the supporting ring, and the upper end of the spring is connected with the screening barrel. The coal grinding stone screening device screens coal grinding stones through the funnel-shaped first screening hopper and the funnel-shaped second screening hopper, the device is annular, dust is intercepted during screening, ejection of the coal grinding stones is avoided, the occupied area during use and storage is reduced, and the site cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal gangue screening, in particular to a coal gangue comprehensive recycling device. Background Art

[0002] Gangue is a solid waste generated during coal mining and washing, accounting for 10%-25% of the coal mining process. Gangue has a low carbon content and is a black rock rich in metals, alkaline earth metals and sulfides. The traditional use of gangue is mainly to backfill coal mine voids, pave roads, improve soil, make building materials and generate electricity.

[0003] By analyzing the combustion of coal gangue of different particle sizes, it is determined that the particle size is 2.5-3.5cm 3 , the combustion degree is better, which requires a screening device to screen the coal gangue, but traditional screening devices mostly flow from a high position to a low position, and different specifications of coal gangue are screened through the screen during the flow process to separate the materials, resulting in longer equipment, larger footprint, and increased site costs. During screening, materials are easily ejected to the outside, and a lot of dust is spread to the outside. For this reason, we propose a comprehensive coal gangue recycling and utilization device to solve the existing problems. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and propose a comprehensive recycling device for coal gangue.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a comprehensive recycling and utilization device for coal gangue, comprising a material box, a mounting frame and a screening drum, a material box is arranged inside the upper end of the mounting frame, a screening drum is arranged below the material box, a vibration motor is arranged on the upper end of the screening drum, the screening drum and the material box are both annular, and a longitudinally distributed screen bucket 1 and a screen bucket 2 are arranged on the inner wall of the screening drum, the mesh specification of the internal screen bucket 1 is larger than that of the screen bucket 2, the screen bucket 1 and the screen bucket 2 are both funnel-shaped and open at the center, a conveying pipe is arranged at the lower end of the screen bucket 2, a support ring is arranged inside the lower end of the mounting frame, and springs distributed in a ring array are arranged on the upper end of the support ring, and the upper end of the spring is connected to the screening drum.

[0006] Preferably, a feed hopper is provided at the center of the upper end of the material box, and a cone plate is provided at the center of the material box. The recovered unscreened coal grinding stones are transported to the inside of the material box through the feed hopper, and the coal grinding stones gathered in the center are guided to the side through the cone plate to feed the feeding pipe.

[0007] Preferably, the lower side of the material box is provided with feeding pipes distributed in an annular array, the upper end of the screening cylinder is provided with travel ports distributed in an annular array, and the lower end of the feeding pipe is plugged into the travel port. The feeding pipe transports coal and stone into the screening cylinder at multiple points, and is adapted to the large-area screening material of the annular funnel-shaped screen buckets 1 and 2. When the screening cylinder passes through the travel port and follows the spring shaking, the effective use of the feeding pipe is guaranteed.

[0008] Preferably, the lower ends of the sieve buckets 1 and 2 are both provided with support plates distributed in a circular array and connected to the inner wall of the screening cylinder at one end. The support plates support the bottoms of the sieve buckets 1 and 2 to improve the bearing stability of the sieve buckets 1 and 2.

[0009] Preferably, a coarse material discharge pipe penetrating the screening cylinder is provided at a lower end of the screening bucket, and the material intercepted by the screening bucket is transported to the outside through the coarse material discharge pipe.

[0010] Preferably, a funnel-shaped convergence plate is provided at the lower end of the screening cylinder, and a conical diffusion plate is provided at the center of the convergence plate and is sleeved on the outer wall of the conveying pipe. The coal grinding stones falling downward through the screening bucket 2 are guided toward the center through the convergence plate to reduce the impact force of the coal grinding stones falling directly to the ground, and at the same time, the coal grinding stones are conveyed to the side of the mounting frame through the diffusion plate.

[0011] Preferably, a collection box is provided inside the lower end of the mounting frame and is located directly below the conveying pipe. A guide rail is provided below the mounting frame. The inner wall of the lower end of the collection box is provided with symmetrically distributed sliders, and the sliders are slidably sleeved on the outer wall of the guide rail. The collection box collects the coal and stone output from the conveying pipe. The collection box slides on the guide rail through the slider at the bottom, which facilitates the movement of the collection box when pushing and pulling at the lower end of the mounting frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model sets the screen into a funnel shape, and there are two groups with different internal mesh specifications. Large and small coal grinding stones are removed, and recyclable coal grinding stones are retained. The coal grinding stones flow from the outside to the inside through the funnel-shaped screening device. The main body of the equipment is supported by a spring and cooperates with a vibration motor to drive the screening equipment to vibrate and assist in the screening of the coal grinding stones. The main body of the equipment is annular to avoid the equipment being too long, reduce the floor area, and reduce the site cost. The closed screening cylinder during screening prevents the material from being ejected to the outside, reduces the spread of dust, and protects the environment and personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the material box of the utility model in top cross-section;

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model in a side section view at a first angle;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model in a side section view from a second angle;

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the support ring of the utility model when viewed from above.

[0019] Figure numerals: 1. material box; 2. mounting frame; 3. coarse material discharge pipe; 4. screening cylinder; 5. support ring; 6. diffusion plate; 7. guide rail; 8. collecting box; 9. spring; 10. feed pipe; 11. feed hopper; 12. vibration motor; 13. travel port; 14. cone plate; 15. convergence plate; 16. screen bucket one; 17. screen bucket two; 18. conveying pipe; 19. support plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-Figure 5As shown, a comprehensive recycling and utilization device of coal gangue proposed by the utility model comprises a material box 1, a mounting frame 2 and a screening drum 4, the material box 1 is arranged inside the upper end of the mounting frame 2, a feed hopper 11 is arranged at the center position of the upper end of the material box 1, a cone plate 14 is arranged at the center of the material box 1, a feeding pipe 10 distributed in a ring array is arranged on the side of the lower end of the material box 1, a screening drum 4 is arranged below the material box 1, a vibration motor 12 is arranged on the upper end of the screening drum 4, a travel port 13 distributed in a ring array is opened inside the upper end of the screening drum 4, the lower end of the feeding pipe 10 is plugged into the travel port 13, the screening drum 4 and the material box 1 are both annular, and a longitudinally distributed screen bucket 16 and a screen bucket 2 17 are arranged on the inner wall of the screening drum 4, the mesh specification of the screen bucket 16 is larger than that of the screen bucket 2 17, and the lower ends of the screen bucket 16 and the screen bucket 2 17 are both provided with a ring array. A support plate 19 is distributed and connected to the inner wall of the screening cylinder 4 at one end. The screen bucket 16 and the screen bucket 2 17 are both funnel-shaped and open at the center. The lower end of the screen bucket 16 is provided with a coarse material discharge pipe 3 that penetrates the screening cylinder 4, and the lower end of the screen bucket 2 17 is provided with a conveying pipe 18. A funnel-shaped converging plate 15 is provided on the side of the lower end of the screening cylinder 4, and a conical diffusion plate 6 is provided at the center of the converging plate 15 and is sleeved on the outer wall of the conveying pipe 18. A support ring 5 is provided inside the lower end of the mounting frame 2, and a spring 9 distributed in a ring array is provided on the upper end of the support ring 5, and the upper end of the spring 9 is connected to the screening cylinder 4. A collecting box 8 is provided inside the lower end of the mounting frame 2 and is located directly below the conveying pipe 18. A guide rail 7 is provided below the mounting frame 2, and symmetrically distributed sliders are provided on the inner wall of the lower end of the collecting box 8, and the sliders are slidably sleeved on the outer wall of the guide rail 7.

[0022] Based on the implementation steps of Example 1: the coal grinding stone is transported to the inside of the material box 1 through the feed hopper 11, and the material is transported to the inner side position of the upper end of the screening cylinder 4 through multiple feeding pipes 10 through the diversion of the cone plate 14. The annular and funnel-shaped screening bucket 16 screens the coal grinding stone at multiple positions at the same time, and the screening area is large, which avoids the annular screening bucket 16 from being unable to be fully utilized, and the annular and funnel-shaped screening bucket 16 is fully screened.

[0023] The rotating motor operates, driving the spring 9 to vibrate, causing the screening cylinder 4 to vibrate, and the coal grinding stones to vibrate on the screen bucket 1 16 and the screen bucket 2 17. The large-sized coal grinding stones are intercepted by the screen bucket 16, and the coal grinding stones smaller than the mesh size inside the screen bucket 16 fall onto the screen bucket 2 17. The coal grinding stones jumping on the screen bucket 2 17 flow toward the center position, and the small-sized coal grinding stones pass through the screen bucket 2 17, fall downward, and flow out to the side of the mounting frame 2 through the converging plate 15 and the diffusion plate 6, so as to prevent the unqualified coal grinding stones from being mixed with the qualified coal grinding stones after screening. The recyclable coal grinding stones are transported to the inside of the collection box 8 through the conveying pipe 18;

[0024] During the recycling and screening process of coal grinding stone, most of the diffused dust is intercepted inside the screening cylinder 4, and a small amount is output through the lower opening, which reduces the pollution to the environment and prevents the dust from flowing upward directly. At the same time, it prevents the coal grinding stone from being ejected to the outside when shaking, causing it to hit the workers and objects, thus effectively protecting the workers;

[0025] The overall shape of the equipment is ring-shaped, which avoids the problems of common long screening devices that occupy a large area and have poor protection during use, reduces the cost of occupying the site during the use of the equipment, and reduces the storage space occupied by the equipment after use.

[0026] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A comprehensive recycling device for coal gangue, comprising a material box (1), a mounting frame (2) and a screening drum (4), characterized in that: A material box (1) is arranged inside the upper end of the mounting frame (2), a screening drum (4) is arranged below the material box (1), a vibration motor (12) is arranged at the upper end of the screening drum (4), the screening drum (4) and the material box (1) are both annular, a screening bucket 1 (16) and a screening bucket 2 (17) are arranged on the inner wall of the screening drum (4) in a longitudinal distribution, the mesh specification of the screening bucket 1 (16) is larger than that of the screening bucket 2 (17), the screening bucket 1 (16) and the screening bucket 2 (17) are both funnel-shaped and open at the center, a conveying pipe (18) is arranged at the lower end of the screening bucket 2 (17), a support ring (5) is arranged inside the lower end of the mounting frame (2), and springs (9) distributed in an annular array are arranged at the upper end of the support ring (5), and the upper end of the spring (9) is connected to the screening drum (4).

2. The comprehensive recycling device for coal gangue according to claim 1 is characterized in that: A feed hopper (11) is arranged at the center of the upper end of the material box (1), and a cone plate (14) is arranged at the center of the material box (1).

3. The comprehensive recycling device for coal gangue according to claim 1 is characterized in that: The lower side of the material box (1) is provided with feeding pipes (10) distributed in a circular array, the upper end of the screening cylinder (4) is provided with travel ports (13) distributed in a circular array, and the lower end of the feeding pipe (10) is inserted into the travel port (13).

4. The comprehensive recycling device for coal gangue according to claim 1 is characterized in that: The lower ends of the first sieve bucket (16) and the second sieve bucket (17) are both provided with support plates (19) distributed in a circular array and connected to the inner wall of the sieve cylinder (4) at one end.

5. The comprehensive recycling device for coal gangue according to claim 1 is characterized in that: The lower end of the screening bucket 1 (16) is provided with a coarse material discharge pipe (3) penetrating the screening cylinder (4).

6. The comprehensive recycling device for coal gangue according to claim 1 is characterized in that: A funnel-shaped converging plate (15) is arranged on the lower end side of the screening cylinder (4), and a conical-shaped diffusion plate (6) which is sleeved on the outer wall of the conveying pipe (18) is arranged at the center of the converging plate (15).

7. The comprehensive recycling device for coal gangue according to claim 1 is characterized in that: A collecting box (8) is arranged inside the lower end of the mounting frame (2) and is located directly below the conveying pipe (18). A guide rail (7) is arranged below the mounting frame (2). The inner wall of the lower end of the collecting box (8) is provided with symmetrically distributed sliders, and the sliders are slidably sleeved on the outer wall of the guide rail (7).

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