Drum screen for mineral separation

Abstract

The utility model provides a drum screen for mineral separation, belongs to the technical field of drum screens, and solves the problem of poor screen hole cleaning effect of the drum screen in the prior art. A plurality of sieve holes are formed in the barrel, fixing rings are fixedly connected to the two ends of the barrel, the two fixing rings are each sleeved with an installation ring, a plurality of rolling wheels making contact with the fixing rings are arranged on the inner sides of the installation rings, the barrel is connected with a driving mechanism, and a connecting rod is connected to the two installation rings; a beating plate is hinged to the connecting rod, a torsional spring is arranged at the hinged position, a plurality of wedge-shaped blocks matched with the beating plate are arranged on the cylinder body, and a water spraying pipe connected with the connecting rod is arranged in the cylinder body. The beating plate is arranged on the outer side of the barrel body and matched with the wedge-shaped block on the barrel body, the barrel body is beaten in a reciprocating mode when the barrel body rotates, so that ore in the screen holes is beaten out, the water spraying pipe arranged in the barrel body sprays high-pressure water flow to wash the inner wall of the barrel body, attached materials are washed away, and the cleaning effect of the screen holes is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of drum screens, in particular to a drum screen for mineral processing. Background Art

[0002] The drum screen for mineral processing is an important screening equipment, which is widely used in the sorting and grading of various ores. Its working principle is to drive the drum to rotate through the motor, so that the material turns and rolls in the drum, and is separated through the sieve holes according to the size and shape of the material particles.

[0003] In order to prevent the existing drum screen from being clogged and affecting the screening efficiency, a beating mechanism is provided on the outside of the drum screen to beat out the ore in the sieve holes. However, some materials attached to the inner wall of the drum screen (a mixture of clay and ore with smaller particle size) are difficult to be cleaned by the beating mechanism, resulting in some sieve holes still being clogged. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a drum screen for mineral processing, in which a beating plate is arranged on the outside of the drum to cooperate with the wedge block on the drum, and the drum is reciprocatedly beaten when the drum rotates, so as to knock out the ore in the sieve hole, and a water spray pipe arranged in the drum sprays high-pressure water flow to flush the inner wall of the drum, so as to wash away the attached material and ensure the cleaning effect of the sieve hole.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A drum screen for mineral processing comprises an inclined cylinder, the cylinder is provided with a plurality of sieve holes, both ends of the cylinder are fixedly connected with fixing rings, the two fixing rings are sleeved with mounting rings, the inner sides of the mounting rings are provided with a plurality of rollers in contact with the fixing rings, the cylinder is connected with a driving mechanism for driving the cylinder to rotate, the two mounting rings are connected with a connecting rod, a slapping plate is hinged on the connecting rod and a torsion spring is provided at the hinge, a plurality of wedge blocks cooperating with the slapping plate are provided on the cylinder, and a water spray pipe connected with the connecting rod is provided in the cylinder.

[0007] Preferably, the driving mechanism comprises a motor and a gear connected to an output shaft of the motor, and a rack meshing with the gear is circumferentially arranged on the outer wall of the fixing ring.

[0008] Preferably, the fixing ring is sleeved with an annular boss and the rack is arranged on the annular boss, the mounting ring is fixedly connected with a mounting frame, and the mounting frame is fixedly provided with a universal ball which contacts the annular boss and is used to prevent the cylinder from sliding.

[0009] Preferably, a bracket is connected to the lower end of the mounting ring, and a collecting bucket is provided below the cylinder.

[0010] Preferably, the sieve holes have at least two apertures.

[0011] Preferably, a guide groove is obliquely provided in the cylinder.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] A beating plate is arranged on the outside of the cylinder to cooperate with the wedge block on the cylinder. When the cylinder rotates, the cylinder is beat back and forth to knock out the ore in the sieve hole. The water spray pipe arranged in the cylinder sprays high-pressure water to flush the inner wall of the cylinder, thereby flushing away the attached material and ensuring the cleaning effect of the sieve hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of a cross-sectional structure provided for an embodiment of the utility model;

[0016] Figure 2 A schematic diagram of a side cross-sectional structure of a cylinder provided in an embodiment of the utility model;

[0017] Figure 3 for Figure 1 A in the figure is an enlarged structural diagram.

[0018] Description of the drawings: 1- bracket; 2- collecting bucket; 3- gear; 4- motor; 5- guide groove; 6- cylinder; 7- connecting rod; 8- wedge block; 9- flapping plate; 10- roller; 11- mounting ring; 12- water spray pipe; 13- fixing ring; 14- sieve hole; 15- mounting frame; 16- rack; 17- annular boss; 18- universal ball. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] Combine the following Figure 1-Figure 3 The utility model is described in detail.

[0023] Example

[0024] A drum screen for mineral processing comprises an inclined cylinder 6, a plurality of sieve holes 14 are arranged on the cylinder 6, fixing rings 13 are fixedly connected to both ends of the cylinder 6, mounting rings 11 are sleeved on the two fixing rings 13, a plurality of rollers 10 in contact with the fixing rings 13 are arranged on the inner side of the mounting rings 11, a driving mechanism for driving the cylinder 6 to rotate is connected to the cylinder 6, a connecting rod 7 is connected to the two mounting rings 11, a slapping plate 9 is hinged on the connecting rod 7 and a torsion spring is arranged at the hinge, a plurality of wedge blocks 8 cooperating with the slapping plate 9 are arranged on the cylinder 6, and a water spray pipe 12 connected to the connecting rod 7 is arranged in the cylinder 6.

[0025] The cylinder 6 rotates under the drive of the driving mechanism, and the cylinder 6 keeps stable rotation under the limit of the roller 10, so as to screen the ore. The connection rod 7 can enhance the stability of the two mounting rings 11. Figure 2 As shown, multiple connecting rods 7 can be provided. During the rotation of the cylinder 6, the wedge block 8 also rotates accordingly. After the wedge block 8 contacts the flapping plate 9, the flapping plate 9 is deflected away from the cylinder 6. After the wedge block 8 is out of contact with the flapping plate 9, the torsion spring resets the flapping plate 9 and causes the flapping plate 9 to hit the outer wall of the cylinder 6, thereby forming a flapping effect. The arrangement of the present application makes it possible to have no supporting components in the cylinder 6, so that a water spray pipe 12 can be provided in the cylinder 6 without affecting the rotation of the cylinder 6, and the water spray pipe 12 sprays high-pressure water to wash the side wall of the cylinder 6.

[0026] The water sprayed from the water spray pipe 12 flows to the bottom of the cylinder 6 and can also increase the fluidity of small-sized ore in the cylinder 6, making it easier for the small-sized ore to be screened out of the cylinder 6. At the same time, the water spraying can also prevent dust from being raised in the cylinder 6.

[0027] The driving mechanism includes a motor 4 and a gear 3 connected to the output shaft of the motor 4. The outer wall of the fixing ring 13 is circumferentially provided with a rack 16 meshing with the gear 3. The output shaft of the motor 4 rotates and drives the cylinder 6 to rotate through the gear 3 meshing with the rack 16.

[0028] An annular boss 17 is sleeved on the fixing ring 13 and the rack 16 is arranged on the annular boss 17. A mounting frame 15 is fixedly connected to the mounting ring 11. A universal ball 18 is fixedly arranged on the mounting frame 15, which contacts the annular boss 17 and is used to prevent the cylinder 6 from sliding. Under the obstruction of the mounting frame 15 and the universal ball 18, the cylinder 6 can be prevented from sliding toward the inclined end, and the universal ball 18 can roll in contact with the annular boss 17 during the rotation of the cylinder 6, thereby reducing wear.

[0029] The lower end of the mounting ring 11 is connected with a bracket 1, and a collecting bucket 2 is arranged below the cylinder 6. The collecting bucket 2 collects the undersize and introduces it to the subsequent conveyor belt.

[0030] The sieve hole 14 has at least two apertures. Figure 1 As shown, three sieve holes 14 with different apertures are provided to perform multi-stage screening on the ore.

[0031] A guide groove 5 is obliquely arranged in the cylinder 6. The guide groove 5 is used to transport the ore to be screened into the cylinder 6.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drum screen for mineral processing, comprising a drum (6) arranged obliquely, wherein a plurality of sieve holes (14) are arranged on the drum (6), characterized in that: The two ends of the cylinder (6) are fixedly connected with fixing rings (13), the two fixing rings (13) are sleeved with mounting rings (11), the inner side of the mounting rings (11) is provided with a plurality of rollers (10) in contact with the fixing rings (13), the cylinder (6) is connected with a driving mechanism for driving the cylinder (6) to rotate, the two mounting rings (11) are connected with a connecting rod (7), a flapping plate (9) is hingedly connected to the connecting rod (7) and a torsion spring is arranged at the hinge, a plurality of wedge blocks (8) cooperating with the flapping plate (9) are arranged on the cylinder (6), and a water spray pipe (12) connected with the connecting rod (7) is arranged in the cylinder (6).

2. A drum screen for mineral processing according to claim 1, characterized in that: The driving mechanism comprises a motor (4) and a gear (3) connected to an output shaft of the motor (4); a rack (16) meshing with the gear (3) is circumferentially arranged on the outer wall of the fixing ring (13).

3. A drum screen for mineral processing according to claim 2, characterized in that: The fixing ring (13) is sleeved with an annular boss (17) and the rack (16) is arranged on the annular boss (17). The mounting ring (11) is fixedly connected with a mounting frame (15), and the mounting frame (15) is fixedly provided with a universal ball (18) which contacts the annular boss (17) and is used to prevent the cylinder (6) from sliding.

4. A drum screen for mineral processing according to claim 1, characterized in that: The lower end of the mounting ring (11) is connected to a bracket (1), and a collecting bucket (2) is arranged below the cylinder (6).

5. The drum screen for mineral processing according to claim 1, characterized in that: The sieve holes (14) are provided with at least two apertures.

6. A drum screen for mineral processing according to claim 1, characterized in that: A guide groove (5) is obliquely arranged in the cylinder (6).

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