Coal sorting and screening equipment

Abstract

The utility model discloses coal sorting and screening equipment, and relates to the technical field of coal screening. The device structurally comprises a sorting cylinder, two cylindrical rods, two brushes, a connecting end plate, an air cylinder and a packing auger with a shaft. The auger with the shaft is mounted on the sorting cylinder; the sorting cylinder is obliquely arranged; a first diversion rectangular pipe and a second diversion rectangular pipe are vertically fixed to the two-thirds abdomen portion below the outer wall of the sorting cylinder, and the lower end of the first diversion rectangular pipe and the lower end of the second diversion rectangular pipe are flush bevel openings. The obliquely-arranged sorting cylinder is provided with three parallel output ports, namely the first diversion rectangular pipe, the second diversion rectangular pipe and the discharge pipeline, so that coal with different granularities can be output at the same time, and the sorting efficiency is improved; the auger with the shaft drives the coal to move from bottom to top, the coal is divided into three grades of coarse and fine particles in the sorting cylinder, and efficient grading screening is achieved. And a conveyor can be arranged below the equipment to directly output coal with different granularities, which is convenient for users to use.

Description

Technical Field

[0001] This utility model belongs to the field of coal screening technology, and in particular relates to a coal sorting and screening device. Background Technology

[0002] Coal, as an important energy resource, plays a vital role in industrial production. However, after coal mining, coal particles of different sizes are mixed together and need to be screened for subsequent processing and utilization. Traditional coal screening equipment has many shortcomings in practical applications. For example, some equipment relies solely on vibration to move coal on the screening plate into the discharge pipe during discharge, which can easily lead to some coal remaining on the screening plate and some clogging the screen holes, resulting in incomplete discharge and affecting screening efficiency and quality. Furthermore, most existing coal screening equipment has a complex structure, high maintenance costs, and limited screening accuracy, making it difficult to meet the modern industrial demands for high-quality and high-efficiency coal sorting. Therefore, it is necessary to develop a coal sorting and screening device that is simple in structure, easy to operate, has high screening efficiency, and can fully discharge coal to improve the utilization rate of coal resources and economic benefits. Utility Model Content

[0003] The purpose of this utility model is to provide a coal sorting and screening equipment. By setting up a shafted auger, a diversion rectangular tube and a discharge pipe, it realizes efficient grading, screening and output of coal, and solves the problems of incomplete discharge, complex structure and high maintenance cost and limited screening accuracy of existing coal screening equipment.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a coal sorting and screening device, comprising a sorting cylinder, two cylindrical rods, two brushes, a connecting end plate, a cylinder, and a shaft-driven auger; the shaft-driven auger is mounted on the sorting cylinder; the sorting cylinder is inclined; a first diversion rectangular tube and a second diversion rectangular tube are vertically fixed to the lower two-thirds of the outer wall of the sorting cylinder, and the lower ends of the first and second diversion rectangular tubes are flush with each other at an angle; the lower ends of the first and second diversion rectangular tubes are connected by two rectangular strips; a discharge pipe is fixedly installed through the upper outer wall of the sorting cylinder; the portion of the sorting cylinder located inside the first diversion rectangular tube has an opening... The sorting cylinder has several first filter holes; the portion of the sorting cylinder located inside the second diversion rectangular tube has several second filter holes; the cylindrical rod passes through the two side walls of the second diversion rectangular tube and the one side wall of the first diversion rectangular tube; the upper half of the lower end face of the sorting cylinder has a feed inlet; two brushes are respectively placed inside the first diversion rectangular tube and the second diversion rectangular tube, and both brushes are mounted on the two cylindrical rods; the connecting end plate is mounted on the outer ends of the two cylindrical rods by two first bolts; a cylinder mounting seat that connects and cooperates with the cylinder is fixed on the side of the first diversion rectangular tube; the telescopic end stud of the cylinder passes through the connecting end plate and is fastened by a nut.

[0006] As a preferred embodiment of this utility model, the second diversion rectangular tube has two guide sleeves that slide in cooperation with the cylindrical rod through both sides of the sorting cylinder along the axial direction and the upper side of the first diversion rectangular tube along the axial direction of the sorting cylinder, and the six guide sleeves are arranged in two parallel rows.

[0007] As a preferred embodiment of this utility model, a feed funnel is installed on the outer wall of the feed inlet.

[0008] As a preferred embodiment of this utility model, a reduction motor that is connected to the shaft auger is installed at the upper end of the sorting cylinder.

[0009] As a preferred embodiment of this utility model, the connecting end plate includes a U-shaped plate; a first circular through hole is opened at each of the two ends of the U-shaped plate; a circular sleeve coaxially arranged with the first circular through hole is fixed on one side of each end of the U-shaped plate; the outer end of the cylindrical rod is inserted into the circular sleeve; and an ear plate that mates with the cylinder telescopic end stud is fixed on one side of the U-shaped plate.

[0010] As a preferred embodiment of this utility model, the brush includes a brush body; one side of the brush body is provided with bristles arranged in an arc shape to clean the outer wall of the sorting cylinder; the brush body is provided with a second through hole that is inserted into and cooperates with the two cylindrical rods, and a fastening bolt that passes through the two second through holes is threadedly connected to one side wall of the brush body.

[0011] This utility model has the following beneficial effects:

[0012] This invention features an inclined sorting cylinder equipped with three parallel output ports (a first diversion rectangular tube, a second diversion rectangular tube, and a discharge pipe), which can simultaneously output coal of different particle sizes, improving sorting efficiency. A shafted auger drives the coal to move from bottom to top, separating it into three grades of coarse and fine particles within the sorting cylinder, achieving efficient grading and screening. A conveyor can be installed below the equipment to directly output coal of different particle sizes, making it convenient for users.

[0013] This invention uses an external cylinder to drive two cylindrical rods connected to the connecting end plate to simultaneously drive two brushes placed in the first and second diversion rectangular tubes respectively, to brush and wash the filter holes on the sorting cylinder, remove the clogged coal slag, and ensure the sorting and filtering efficiency of the equipment.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the coal sorting and screening equipment of this utility model.

[0017] Figure 2 for Figure 1 A schematic diagram of the structure after removing the cylinder and feed hopper.

[0018] Figure 3 for Figure 2 A structural diagram from another perspective.

[0019] Figure 4 This is a schematic diagram of the brush's structure.

[0020] Figure 5 This is a schematic diagram of the connecting end plate.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1-Sorting cylinder, 2-Cylindrical rod, 3-Brush, 4-Connecting end plate, 5-Cylinder, 6-Screwdriver with shaft, 7-Feed funnel, 8-Gear motor, 11-First diversion rectangular tube, 12-Second diversion rectangular tube, 13-Rectangular strip, 14-Discharge pipe, 15-First filter hole, 16-Second filter hole, 17-Feed inlet, 18-Cylinder mounting seat, 19-Guide sleeve, 31-Brush body, 32-Brush bristles, 33-Second through hole, 34-Fasting bolt, 41-U-shaped plate, 42-First through hole, 43-Circular sleeve, 44-Ear plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Specific Implementation Example 1:

[0025] Please see Figure 1-5 As shown, this utility model is a coal sorting and screening device, including a sorting cylinder 1, two cylindrical rods 2, two brushes 3, a connecting end plate 4, a cylinder 5, and a shaft-driven auger 6. The shaft-driven auger 6 is installed on the sorting cylinder 1.

[0026] The sorting cylinder 1 is inclined. A first diversion rectangular tube 11 and a second diversion rectangular tube 12 are vertically fixed to the lower two-thirds of the outer wall of the sorting cylinder 1, with their lower ends flush at an angle. The lower ends of the first diversion rectangular tube 11 and the second diversion rectangular tube 12 are connected by two rectangular strips 13. A discharge pipe 14 is fixed through the upper outer wall of the sorting cylinder 1. Several first filter holes 15 are formed on the portion of the sorting cylinder 1 located inside the first diversion rectangular tube 11; several second filter holes 16 are formed on the portion of the sorting cylinder 1 located inside the second diversion rectangular tube 12. A cylindrical rod 2 passes through both side walls of the second diversion rectangular tube 12 and one side wall of the first diversion rectangular tube 11. A feed inlet 17 is formed on the upper half of the lower end face of the sorting cylinder 1.

[0027] In this embodiment, the inclined sorting cylinder 1 has three parallel output first diversion rectangular pipes 11, second diversion rectangular pipes 12 and discharge pipes 14. During the rotation of the shafted auger 6 inside the sorting cylinder 1, the mixed crushed coal moves from bottom to top, and the coal is divided into three grades of coarse and fine particles. Three conveyors can be set below it for convenient use.

[0028] Two brushes 3 are respectively placed inside the first diversion rectangular tube 11 and the second diversion rectangular tube 12, and both brushes 3 are mounted on two cylindrical rods 2. Each brush 3 includes a brush body 31. One side of the brush body 31 has arc-shaped bristles 32 arranged to clean the outer wall of the sorting cylinder 1. The brush body 31 has second through holes 33 that engage with the two cylindrical rods 2, and one side wall of the brush body 31 is threaded with fastening bolts 34 that penetrate into the two second through holes 33.

[0029] The connecting end plate 4 is mounted on the outer ends of the two cylindrical rods 2 by two first bolts. A cylinder mounting seat 18, which connects and mates with the cylinder 5, is fixed to the side of the first diverting rectangular tube 11. The telescopic stud of the cylinder 5 passes through the connecting end plate 4 and is secured with a nut. The connecting end plate 4 includes a U-shaped plate 41. A first circular through hole 42 is formed at each end of the U-shaped plate 41. A circular sleeve 43, coaxially arranged with the first circular through hole 42, is fixed to one side of each end of the U-shaped plate 41. The outer ends of the cylindrical rods 2 are inserted into the circular sleeves 43. An ear plate 44, which mates with the telescopic stud of the cylinder 5, is fixed to one side of the U-shaped plate 41.

[0030] The cylinder 5 drives two cylindrical rods 2 through the connecting end plate 4, which in turn drive two brushes 3 to move synchronously along the axial direction of the sorting cylinder 1 to brush the first filter hole 15 and the second filter hole 16 opened on the sorting cylinder 1, brushing away most of the coal slag blocking the filter holes and ensuring the sorting and filtering efficiency of the sorting cylinder 1.

[0031] To reduce the resistance when the cylindrical rod 2 moves, two guide sleeves 19 that slide in cooperation with the cylindrical rod 2 are fixed through both sides of the second diversion rectangular tube 12 along the axial direction of the sorting cylinder 1 and the upper side of the first diversion rectangular tube 11 along the axial direction of the sorting cylinder 1. The six guide sleeves 19 are arranged in two parallel rows.

[0032] To facilitate the direct feeding of the crushed coal into the sorting cylinder 1 via the conveyor, a feed hopper 7 is installed on the outer wall of the feed inlet 17. The crushed coal blocks conveyed by the conveyor are directly poured into the feed hopper 7 and enter the sorting cylinder 1 from the feed hopper 7.

[0033] In this embodiment, the auger 6 with shaft is directly driven by a motor. Specifically, a geared motor 8, which is connected to the upper end of the sorting cylinder 1, is installed and is driven by the auger 6 with shaft. Other driving methods can also be used, but will not be described in detail in this embodiment.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A coal sorting and screening device, characterized in that: It includes a sorting cylinder (1), two cylindrical rods (2), two brushes (3), a connecting end plate (4), a cylinder (5), and a shaft auger (6); the shaft auger (6) is installed on the sorting cylinder (1); The sorting cylinder (1) is inclined; a first diversion rectangular tube (11) and a second diversion rectangular tube (12) are vertically fixed on the lower two-thirds of the outer wall of the sorting cylinder (1), and the lower ends of the first diversion rectangular tube (11) and the second diversion rectangular tube (12) are flush with each other at the bevel; the lower ends of the first diversion rectangular tube (11) and the lower ends of the second diversion rectangular tube (12) are connected by two rectangular strips (13); a discharge pipe (14) is fixed through the upper end of the outer wall of the sorting cylinder (1); The sorting cylinder (1) located inside the first diversion rectangular tube (11) has a plurality of first filter holes (15); the sorting cylinder (1) located inside the second diversion rectangular tube (12) has a plurality of second filter holes (16). The cylindrical rod (2) passes through the two side walls of the second diversion rectangular tube (12) and the one side wall of the first diversion rectangular tube (11); The sorting cylinder (1) has a feed inlet (17) on the upper half of its lower end face. The two brushes (3) are respectively placed inside the first diversion rectangular tube (11) and the second diversion rectangular tube (12), and the two brushes (3) are mounted on the two cylindrical rods (2); the connecting end plate (4) is mounted on the outer end of the two cylindrical rods (2) by two first bolts; The first diverting rectangular tube (11) has a cylinder mounting seat (18) fixed on its side, which is connected and cooperates with the cylinder (5); the telescopic end stud of the cylinder (5) passes through the connecting end plate (4) and is fastened by a nut.

2. The coal sorting and screening equipment according to claim 1, characterized in that, The second diversion rectangular tube (12) has two guide sleeves (19) that slide in cooperation with the cylindrical rod (2) through both sides of the sorting cylinder (1) along the axial direction and the first diversion rectangular tube (11) has two guide sleeves (19) that slide in cooperation with the cylindrical rod (2) along the axial direction. The six guide sleeves (19) are arranged in two parallel rows.

3. The coal sorting and screening equipment according to claim 1, characterized in that, A feed funnel (7) is installed on the outer wall of the feed inlet (17).

4. The coal sorting and screening equipment according to claim 1, characterized in that, The upper end of the sorting cylinder (1) is equipped with a speed reduction motor (8) that is connected to the shaft auger (6) for transmission.

5. The coal sorting and screening equipment according to claim 1, characterized in that, The connecting end plate (4) includes a U-shaped plate (41); a first through hole (42) is opened at each end of the U-shaped plate (41); a round sleeve (43) coaxially arranged with the first through hole (42) is fixed on one side of each end of the U-shaped plate (41); the outer end of the cylindrical rod (2) is inserted into the round sleeve (43); an ear plate (44) that cooperates with the extension end stud of the cylinder (5) is fixed on one side of the U-shaped plate (41).

6. The coal sorting and screening equipment according to claim 1, characterized in that, The brush (3) includes a brush body (31); one side of the brush body (31) is provided with arc-shaped bristles (32) for cleaning the outer wall of the sorting cylinder (1); the brush body (31) is provided with a second through hole (33) that is inserted into the two cylindrical rods (2), and a fastening bolt (34) is threaded through the two second through holes (33) on one side wall of the brush body (31).

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