CN216368837U

CN216368837U - Sorting screen structure

Info

Publication number: CN216368837U
Application number: CN202123294820.0U
Authority: CN
Inventors: 吕海峰; 徐中州
Original assignee: Jiangsu Jileng Da Environmental Energy Technology Co ltd
Current assignee: Jiangsu Jileng Da Environmental Energy Technology Co ltd
Priority date: 2021-12-26
Filing date: 2021-12-26
Publication date: 2022-04-26
Anticipated expiration: 2031-12-26

Abstract

The utility model discloses a sorting screen structure, which comprises a first screen body, a second screen body, a third screen body, a fourth screen body, a first guide cylinder, a second guide cylinder and a helical blade, wherein the first screen body is provided with a first screen body; the first guide cylinder comprises a cylinder body A and a cone cylinder body A, and a first material blocking ring is arranged between a small opening of the cone cylinder body A and one end opening of the first sieve body; the second sieve body comprises a second cylinder and a second cone cylinder, and the helical blades are arranged on the inner surfaces of the first cylinder of the first sieve body and the second cylinder of the second sieve body; the axial lines of the first screen body and the second screen body are coincident and form an angle with the horizontal plane: the third screen body comprises a cylinder H, a cylinder M and a cylinder L, and a second material retaining ring is arranged between the port of the cylinder H and the large port of the second cone body of the second screen body; and a third material retaining ring is arranged between the small port of the fourth sieve body and the joint of the third sieve body cylinder M and the cylinder L, the second guide cylinder is sleeved on the fourth sieve body, and a fourth material retaining ring is arranged between one port of the second guide cylinder and the large port of the fourth sieve body.

Description

Sorting screen structure

Technical Field

The utility model relates to the technical field of steel ball and steel forging mechanical screening, in particular to a screening sieve structure.

Background

The steel ball and the steel forging are used as grinding media necessary for the ball mill, and have two main functions: the material is crushed and ground. In the operation process of the mill, the steel balls and the steel forgings inside the mill rotate together, and materials mixed between the steel balls and the steel forgings are extruded and ground to finally become fine powder. The steel balls and the steel forgings are gradually worn in the running process of the ball mill, the size is gradually reduced, the efficiency of grinding materials is reduced, the production capacity and the product quality of the mill are affected, the power consumption of a unit product is increased, and the resource waste is caused. Therefore, enterprises need to select the steel balls and the steel forgings regularly, and leave the steel balls and the steel forgings which meet the requirements and are subjected to additional treatment without meeting the requirements. The existing steel ball and steel forging screening machine comprises a rotary screen, wherein the rotary screen is formed by sequentially connecting cylindrical screen plates with different specifications of screen holes, flow blades are arranged in the cylindrical screen plates, and a discharge hole is formed in the outer side wall of the rotary screen. When the device works, along with the rotation of the cylindrical sieve plate, the steel balls and the steel forges in the cylindrical sieve plate and pushes the steel balls and the steel forges forwards through the flow vanes in the cylindrical sieve plate, and the steel balls and the steel forges into the corresponding discharge hole through the sieve pores matched with the particle sizes of the steel balls and the steel forges, so that the purpose of screening is achieved. In the rotary screen, because the steel balls and the steel forgings in the cylindrical screen plates move forwards and are pushed by the flow vanes, after the steel balls and the steel forgings usually pass through a certain cylindrical screen plate, the steel balls and the steel forgings which should pass through the previous cylindrical screen plate exist, so that sufficient screening cannot be obtained, and the sorting accuracy is poor. Meanwhile, the rotary screen is formed by sequentially connecting cylindrical screen plates with different specifications of screen holes, and is long in length and large in size.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a separating screen structure which is accurate in sorting, compact in structure and small in size.

In order to solve the technical problem, the utility model provides a separating screen structure, which comprises a first screen body, a second screen body, a third screen body, a fourth screen body, a first guide cylinder, a second guide cylinder and a helical blade;

the first screen body is of a first cylinder structure, a plurality of first screen holes are formed in the circumferential surface of the first cylinder, the first guide cylinder comprises a cylinder body A and a cone cylinder body A, the large port of the cone cylinder body A is arranged on one port of the cylinder body A, the first guide cylinder is sleeved on the first screen body and is fixed on the first screen body through a support rod, a space is formed between the inner surface of the first guide cylinder and the outer surface of the first screen body, and a first material blocking ring is arranged between the small opening of the cone cylinder body A and one port of the first cylinder body;

the second sieve body comprises a second cylinder and a second cone cylinder, a plurality of second sieve holes are respectively arranged on the circumferential surfaces of the second cylinder and the second cone cylinder, a small port of the second cone cylinder is arranged on one port of the second cylinder, and the other port of the second cylinder is arranged on one port of the first cylinder;

the helical blades are arranged on the inner surfaces of the first cylinder of the first screen body and the second cylinder of the second screen body;

the axial leads of the first screen body and the second screen body are superposed, and an angle is formed between the axial lead and the horizontal plane:

the third screen body is of a third cylinder body structure, the third cylinder body comprises a cylinder body H, a cylinder body M and a cylinder body L, the cylinder body H, the cylinder body M and the cylinder body L are sequentially connected into an integral structure, a plurality of third screen holes are formed in the circumferential surface of the cylinder body M, the third cylinder body is sleeved on the second screen body and is fixed on the second screen body through supporting rods, a space is formed between the inner surface of the third cylinder body and the outer surface of the second screen body, and a second material retaining ring is arranged between the port of the cylinder body H of the third cylinder body and the large port of the second cone cylinder body of the second screen body;

the fourth sieve body is of a fourth cone cylinder structure, a plurality of fourth sieve holes are arranged on the circumferential surface of the fourth cone cylinder, the fourth cone cylinder is sleeved on the third sieve body and is fixed on the third sieve body through a support rod, a third material blocking ring is arranged between the small port of the fourth cone cylinder and the joint of the cylinder M and the cylinder L of the third sieve body,

the second guide cylinder is sleeved on the fourth screen body and fixed on the fourth screen body through a supporting rod, and a fourth material retaining ring is arranged between one port of the second guide cylinder and the large port of the fourth cone body.

The first sieve mesh aperture of first screen frame is 10 millimeters, the second sieve mesh aperture of second screen frame is 17 millimeters, the third sieve mesh aperture of third screen frame is 15 millimeters, the fourth sieve mesh aperture of fourth screen frame is 12.7 millimeters.

The minimum spacing between the second screen body and the third screen body is at least 25 millimeters, and the minimum spacing between the third screen body and the fourth screen body is at least 25 millimeters.

All sieve pores of the first sieve body, the second sieve body, the third sieve body and the fourth sieve body are of a cone structure, the cone structure comprises an inner pore end located on the inner surface of the sieve body and an outer pore end located on the outer surface of the sieve body, the diameter of the outer pore end is wider than that of the inner pore end, and the pore diameter of the sieve body is equal to that of the inner pore end.

In the above-mentioned separating sieve structure, because first screen frame links to each other with the second screen frame, and the third screen frame suit is at the second screen frame, and the fourth screen frame suit is at the third screen frame, therefore compact structure, small. When the ball forging separating sieve is used, the separating sieve is driven by an external driving device to rotate, an external feeding device firstly guides a ball forging mixture into a first sieve body, the ball forging mixture is guided to move from a low position to a high position under the pushing of the helical blades, and the ball forging mixture is separated into five types through the first sieve body, a second sieve body, a third sieve body and a fourth sieve body. Because above-mentioned separation sieve structure constitutes an angle with the horizontal plane, the ball forging mixture is led from the low level in first screen frame and second screen frame and is moved to the in-process of high level, under gravity and helical blade's thrust effect, and the ball forging mixture slowly shifts up, makes the ball forging mixture can obtain abundant screening like this, and the improvement of the efficiency of selecting separately is favorable to greatly about to and the improvement of the accuracy of choosing to the accurate selection of ball forging has been ensured.

Drawings

FIG. 1 is a schematic structural view of a sieve structure of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1, the present invention provides a separating screen structure, which comprises a first screen body 12, a second screen body, a third screen body 7, a fourth screen body 29, a first guide cylinder 14, a second guide cylinder 27 and a helical blade 10.

The first screen 12 is a first cylinder structure, and a plurality of first screen holes are arranged on the circumferential surface of the first cylinder. The first guiding cylinder 14 comprises a cylinder A21 and a cone body A22, the large opening end of the cone body A22 is arranged at one opening end of the cylinder A21, the first guiding cylinder is sleeved on the first screen body 12, the first guiding cylinder 14 is fixed on the first screen body 12 through a supporting rod, and a space is reserved between the inner surface of the first guiding cylinder 14 and the outer surface of the first screen body 12. A first material blocking ring 23 is arranged between the small opening of the frustum cylinder A22 and the high port of the first cylinder. In order to facilitate discharging, a first discharging channel 20 is arranged below the other port of the first guide cylinder A21.

The second sieve body comprises a second cylinder 28 and a second cone cylinder 30, a plurality of second sieve holes are arranged on the circumferential surfaces of the second cylinder 28 and the second cone cylinder 30, a small port of the second cone cylinder 30 is arranged on one port of the second cylinder 28, and the other port of the second cylinder 28 is arranged on a high port of the first sieve body 12. For discharging, a fifth discharging channel 33 is arranged below the large port of the second conical cylinder 30.

The helical blades 10 are provided on the inner surface of the first cylinder of the first screen 12 and the second cylinder 28 of the second screen. The axes of the first screen 12 and the second screen coincide and are at an angle to the horizontal.

The third screen frame 7 is a third cylinder structure, the third cylinder includes cylinder H32, cylinder M6 and cylinder L8, cylinder H32, cylinder M6 and cylinder L8 link to each other in proper order and are an overall structure, be equipped with a plurality of third screen holes on the global of cylinder M6. The third cylinder is sleeved on the second screen body, and the third cylinder is fixed on the second screen body through a supporting rod. And a space is reserved between the inner surface of the third cylinder and the outer surface of the second sieve body. A second material retaining ring 4 is arranged between the port of the cylinder H32 of the third cylinder and the large port of the second conical cylinder 30 of the second screen body. In order to facilitate discharging, a second discharging channel 24 is arranged below the lower port of the cylinder L8 of the third cylinder body.

The fourth screen 29 is a fourth cone cylinder structure, a plurality of fourth screen holes are formed in the circumferential surface of the fourth cone cylinder, the fourth cone cylinder is sleeved on the third screen 7, and the fourth cone cylinder is fixed on the third screen 7 through a support rod. A third material blocking ring 25 is arranged between the small port of the fourth cone cylinder and the lower port of the cylinder M8 of the third screen body. In order to facilitate discharging, a fourth discharging channel 31 is arranged below the large port of the fourth cone cylinder.

The second guide cylinder 27 is sleeved on the fourth screen body 29, the second guide cylinder 27 is fixed on the fourth screen body 29 through a support rod, and a fourth material blocking ring 5 is arranged between a high port of the second guide cylinder 27 and a large port of the fourth cone cylinder. For discharging, a third discharging channel 26 is arranged below the lower port of the second guide cylinder 27.

According to the specific screening condition, the first screen hole diameter of the first screen body 12 is 10 mm; the second sieve pore diameter of the second sieve body is 17 mm, that is, a plurality of sieve pores with the pore diameter of 17 mm are arranged on the circumferential surfaces of the second cylinder 28 and the second cone 30 of the second sieve body; the third sieve pore diameter of the third sieve body 7 is 15 mm; the fourth screen aperture of the fourth screen body 29 is 12.7 mm.

In order to ensure that the screen surfaces are overlapped from thick to thin, the space is saved, the large balls or the forged balls do not contact the thin screen surfaces so as to reduce the abrasion of the thin screen, meanwhile, small balls or forged balls and crushed balls which are difficult to screen can quickly pass through the upper layer of the thick screen surfaces, so that the screen surfaces are not easy to block, the screening quality is favorably improved, the minimum distance between the second screen body and the third screen body 7 is at least 25 mm, and the minimum distance between the third screen body 7 and the fourth screen body 29 is at least 25 mm.

In order to prevent blockage, all the sieve holes of the first sieve body 12, the second sieve body, the third sieve body 7 and the fourth sieve body 29 are in a frustum cone structure, the frustum cone structure comprises an inner hole end located on the inner surface of the sieve body and an outer hole end located on the outer surface of the sieve body, the diameter of the outer hole end is wider than that of the inner hole end, and the hole diameter of each sieve body is the diameter of the inner hole end.

The first screen body 12, the second screen body, the third screen body 7, the fourth screen body 29, the first guide cylinder 14 and the second guide cylinder 27 rotate together under the driving of the external driving device. The external feeding device guides the ball forging mixture into the separating screen, and the ball forging mixture is gradually pushed from the low position to the high position under the pushing of the helical blades 10. In the process, the ball forging grinding body mixture firstly passes through the first screen body 12, and ash residues with the screen foreign matters of less than 10 mm of the first screen body 12 reach the first discharge channel 20 under the guidance of the first guide cylinder 14 because the first screen hole diameter of the first screen body 12 is 10 mm; along with the upward movement of the materials, the ball-forged grinding body mixture enters the second sieve body, and because the second sieve pore diameter of the second sieve body is 17 mm, the grinding bodies with the diameter smaller than 17 mm fall into the third sieve body 7 in the rolling process of the grinding bodies in the second sieve body, and the grinding bodies with the diameter larger than 17 mm enter the fifth discharge channel 33 along the second cylinder 28 of the second sieve body and the inner surface of the second cone cylinder 30; the grinding body entering the third screen body 7 enters the second discharging channel 24 through the cylinder L8 of the third screen body 7 because the third screen hole diameter arranged on the cylinder M6 of the third screen body 7 is 15 mm, and the grinding body with the diameter of 15-17 mm in the screen of the third screen body 7; and the grinding bodies which pass through the 15 mm sieve holes of the cylinder M6 of the third sieve body 7 enter the fourth sieve body 29, and the grinding bodies with the diameter of 12.7 mm to 15 mm in the sieve of the fourth sieve body 29 enter the fourth discharging channel 31 because the fourth sieve hole diameter of the fourth sieve body 29 is 12.7 mm; the grinding bodies passing through the fourth screen 29, that is to say the grinding bodies outside the screen of the fourth screen 29, enter the second guide cylinder 27, and the grinding bodies, guided by the second guide cylinder 27, enter the third discharge channel 26 with a diameter slightly wider than 10 mm to 12.7 mm.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a sorting sieve structure which characterized in that: comprises a first sieve body, a second sieve body, a third sieve body, a fourth sieve body, a first guide cylinder, a second guide cylinder and a helical blade;

2. A sieve structure according to claim 1, wherein: the first sieve mesh aperture of first screen frame is 10 millimeters, the second sieve mesh aperture of second screen frame is 17 millimeters, the third sieve mesh aperture of third screen frame is 15 millimeters, the fourth sieve mesh aperture of fourth screen frame is 12.7 millimeters.

3. A sieve structure according to claim 1, wherein: the minimum spacing between the second screen body and the third screen body is at least 25 millimeters, and the minimum spacing between the third screen body and the fourth screen body is at least 25 millimeters.

4. A sieve structure according to claim 1, wherein: all sieve pores of the first sieve body, the second sieve body, the third sieve body and the fourth sieve body are of a cone structure, the cone structure comprises an inner pore end located on the inner surface of the sieve body and an outer pore end located on the outer surface of the sieve body, the diameter of the outer pore end is wider than that of the inner pore end, and the pore diameter of the sieve body is equal to that of the inner pore end.