Multi-stage automatic screening equipment

Abstract

The utility model relates to the technical field of ore screening, and particularly discloses a multi-stage automatic screening device which comprises a frame body, a box body is fixed on the frame body, a feeding hopper is arranged on one side of the box body, a screening mechanism used for conducting multi-stage screening on ore materials is arranged in the box body, and the screening mechanism comprises a screening assembly. The screening assembly is connected with a processing assembly used for stirring screened mineral aggregate. Through the arrangement of the screening assembly and the processing assembly of the screening mechanism, when a roller formed by a connecting ring, a supporting frame and a screening roller of the screening assembly rotates, a shifting plate and an auger plate on a center shaft are driven to rotate, the auger plate pushes ore raw materials in a feeding hopper into the inner side of the rotating screening roller, and when the ore raw materials are screened through the rotating screening roller, the ore raw materials are separated from the processing assembly; and meanwhile, when the screening rollers between the connecting rings rotate to the upper side, the pressing rollers downwards extrude the ore materials clamped between the screening rollers, and the screening efficiency of the ore materials is improved when the screening rollers rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of ore screening, in particular to a multi-stage automatic screening device. Background Art

[0002] The process of separating loose materials into different particle sizes through a sieve is called ore screening. In the ore dressing process, after the ore is crushed, it needs to be screened according to the particle size requirements to distinguish ores of different particle sizes and re-crush unqualified oversized ores to prevent excessive crushing of the ore, so as to improve the crushing production efficiency. At present, when screening the ore, it is mainly screened through a vibrating screen or a drum screen. During the screening process, the ore may clog the screen, affecting its screening efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-stage automatic screening device in order to solve the above problems.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A multi-stage automatic screening device comprises a frame, a box body is fixed on the frame body, a feeding hopper is arranged on one side of the box body, a screening mechanism for multi-stage screening of mineral materials is arranged in the box body, the screening mechanism comprises a screening component, and a processing component for moving the screened mineral materials is connected to the screening component; the screening component comprises a support frame arranged in the box body at intervals, a connecting ring is fixed on the outer ring of the support frame, screening rollers are evenly distributed on the circumference between adjacent connecting rings, a large gear is fixed on the outer diameter of the connecting ring in the middle part, a main gear is arranged on the upper side of the large gear, a transmission shaft is installed in the center of the main gear, one end of the transmission shaft is connected to a power piece, and the other end of the transmission shaft is connected to a first transmission The processing assembly includes a central axis passing through the center of the support frame, one end of the central axis is located at the lower side of the first transmission member and a second transmission member is arranged, a shift plate is arranged between the connecting rings on the central axis, the other end of the central axis passes through the feeding hopper, and an auger plate is arranged on the central axis located inside the feeding hopper, a partition is arranged on one side of the connecting ring in the box body, the central axis is inclined at an angle of 3-5° with the horizontal line toward the feeding hopper, a pressure roller is arranged on the rotating outer diameter of the screening roller inside the box body, and the support frame is arranged at least three places, and the first and second discharging hoppers are respectively arranged at the lower end of the box body and the corresponding areas of the screening roller, and a third discharging hopper is arranged at the end of the box body away from the feeding hopper.

[0006] Further arrangement: the support frame is rotatably connected to the box body, and the number of screening rollers distributed between the connecting rings gradually decreases toward the inclined lower side.

[0007] It is further arranged that the pressing roller is rotatably connected to the box body, and the rotating outer diameters of the pressing roller and the screening roller are tangent.

[0008] Further settings: The central axis is rotatably connected to the support frame, and the central axis is welded to the baffle plate and the auger plate.

[0009] Further settings: The outer rotation diameter of the baffle plate is tangent to the inner rotation diameter of the screening roller.

[0010] Further settings: The transmission shaft is rotatably connected to the upper end of the box body through a support seat, and the transmission shaft is arranged parallel to the central axis.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] Through the settings of the screening component and the processing component of the screening mechanism, when the roller formed by the connecting ring, the support frame and the screening roller of the screening component rotates, through the power transmission between the first transmission member and the second transmission member, the baffle plate and the auger plate on the central axis are driven to rotate, so that the auger plate pushes the ore raw materials in the feeding hopper into the inner side of the rotating screening roller. When the ore materials are screened by the rotating screening roller, the baffle plate stirs and lifts the ore materials. At the same time, when the screening roller between the connecting rings rotates to the upper side, the pressure roller squeezes the ore materials clamped between the screening rollers downward, improving the screening efficiency of the ore materials when the screening roller rotates. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 is an axonometric view of a multi-stage automatic screening device described in the present utility model;

[0015] Figure 2 is a schematic structural view of another perspective of a multi-stage automatic screening device described in the present utility model;

[0016] Figure 3 is a schematic semi-sectional view of a multi-stage automatic screening device described in the present utility model;

[0017] Figure 4 is a schematic front view of a multi-stage automatic screening device described in the present utility model;

[0018] Figure 5 is a schematic partial structural view of the screening mechanism of a multi-stage automatic screening device described in the present utility model;

[0019] Figure 6 is Figure 5 a schematic structural view of some parts in a disassembled state.

[0020] The following are the descriptions of the reference numerals:

[0021] 11. Frame; 12. Box; 13. Partition; 2. Feeding hopper; 31. Support frame; 32. Connecting ring; 33. Screening roller; 34. Large gear; 35. Main gear; 36. Transmission shaft; 37. Power member; 38. Center shaft; 39. Paddle plate; 310. Auger plate; 311. Pressing roller; 312. First transmission member; 313. Second transmission member; 41. First discharging hopper; 42. Second discharging hopper; 43. Third discharging hopper. DETAILED DESCRIPTION

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] like Figures 1 - 6 As shown, a multi-stage automatic screening device comprises a frame 11, a box 12 is fixed on the frame 11, a feeding hopper 2 is arranged on one side of the box 12, and a screening mechanism for multi-stage screening of mineral materials is arranged in the box 12;

[0026] In this embodiment: the screening mechanism includes a screening component, and the screening component is connected to a processing component for moving the screened mineral material;

[0027] The screening component includes a support frame 31 spaced inside the box body 12. A connecting ring 32 is fixed on the outer circle of the support frame 31. Screening rollers 33 are circumferentially and evenly distributed between adjacent connecting rings 32. A large gear 34 is fixed on the outer diameter of the connecting ring 32 in the middle part. A main gear 35 is arranged above the large gear 34. A transmission shaft 36 is installed at the center of the main gear 35. One end of the transmission shaft 36 is connected with a power component 37. The power component 37 is a motor connected through a speed reducer. The output end of the speed reducer is connected with the transmission shaft 36. The other end of the transmission shaft 36 is connected with a first transmission part 312. The support frame 31 is rotationally connected with the box body 12. When the power component 37 works, it drives the main gear 35 on the transmission shaft 36 to mesh and rotate with the large gear 34, driving the connecting ring 32, the support frame 31 and the screening rollers 33 to rotate as a whole, forming a screening roller for ore materials. The number of screening rollers 33 distributed between the connecting rings 32 gradually decreases towards the inclined lower side, so that when the screening rollers 33 between the connecting rings 32 rotate, the ore materials are screened according to specifications from small to large.

[0028] The processing component includes a central shaft 38 passing through the center of the support frame 31. A second transmission part 313 is arranged at one end of the central shaft 38 below the first transmission part 312. The first transmission part 312 and the second transmission part 313 are sprockets. A baffle 39 is arranged on the central shaft 38 between the connecting rings 32. The other end of the central shaft 38 passes through the feeding hopper 2, and a screw blade 310 is arranged on the central shaft 38 inside the feeding hopper 2. A partition plate 13 is arranged on one side of the connecting ring 32 inside the box body 12. The central shaft 38 is inclined at an angle of 3 - 5° towards the feeding hopper 2 with respect to the horizontal line. The support frame 31 is provided with at least three places. First discharge hoppers 41 and second discharge hoppers 42 are respectively arranged at the areas corresponding to the screening rollers 33 at the lower end of the box body 12. A third discharge hopper 43 is arranged at one end of the box body 12 away from the feeding hopper 2. The central shaft 38 is rotationally connected with the support frame 31. The central shaft 38 is welded to the baffle 39 and the screw blade 310. The outer diameter of rotation of the baffle 39 is tangent to the inner diameter of rotation of the screening roller 33. A pressure roller 311 is arranged on the inner side of the box body 12 on the outer diameter of rotation of the screening roller 33. The pressure roller 311 is rotationally connected with the box body 12. The outer diameter of rotation of the pressure roller 311 is tangent to the outer diameter of rotation of the screening roller 33. The transmission shaft 36 is rotationally connected to the upper end of the box body 12 through a support seat. The transmission shaft 36 is arranged parallel to the central shaft 38. Through the power transmission between the first transmission part 312 and the second transmission part 313, it drives the baffle 39 and the screw blade 310 on the central shaft 38 to rotate, so that the screw blade 310 pushes the ore raw materials in the feeding hopper 2 into the inside of the rotating screening roller 33. When passing through the screening of the rotating screening roller 33, the baffle 39 stirs and lifts the ore materials. At the same time, when the screening rollers 33 between the connecting rings 32 rotate to the upper side, the pressure roller 311 squeezes the ore materials clamped between the screening rollers 33 downward, preventing ore materials from existing between the screening rollers 33.

[0029] Working principle and usage process of the utility model: Add the crushed ore material into the feeding hopper 2. The power component 37 works to drive the main gear 35 to mesh and rotate with the large gear 34, so that the large gear 34 drives the roller formed by the connecting ring 32, the support frame 31 and the screening roller 33 to rotate. At the same time, the main gear 35 drives the transmission shaft 36 and the first transmission member 312 to rotate. Through the power transmission with the second transmission member 313, the deflector 39 and the auger plate 310 on the central shaft 38 are driven to rotate, so that the auger plate 310 pushes the ore raw material in the feeding hopper 2 into the inner side of the rotating screening roller 33. When the ore material is screened by the rotating screening roller 33, the deflector 39 stirs and lifts the ore material. First, the small crushed ore material falls and is discharged through the first discharge hopper 41. The ore material that has not passed the first screening moves towards the screening roller 33 on one side, gradually screening and distinguishing the ore material with larger specifications. At the same time, when the screening roller 33 between the connecting rings 32 rotates to the upper side, the pressure roller 311 squeezes the ore material clamped between the screening rollers 33 downward, improving the screening efficiency of the ore material when the screening roller 33 rotates.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A multi-stage automated screening device, comprising a frame (11), a box (12) fixed on the frame (11), a feeding hopper (2) arranged on one side of the box (12), characterized in that: The housing (12) is provided with a screening mechanism for multi-stage screening of mineral materials, the screening mechanism comprising a screening assembly, the screening assembly being connected to a processing assembly for moving the screened mineral materials; the screening assembly comprising a support frame (31) arranged at intervals in the housing (12), a connecting ring (32) being fixed to the outer ring of the support frame (31), screening rollers (33) being evenly distributed on the circumference between adjacent connecting rings (32), a large gear (34) being fixed to the outer diameter of the connecting ring (32) in the middle, a main gear (35) being arranged on the upper side of the large gear (34), a transmission shaft (36) being installed at the center of the main gear (35), one end of the transmission shaft (36) being connected to a power member (37), and the other end of the transmission shaft (36) being connected to a first transmission member (312), the processing assembly comprising a central shaft (38) penetrating the center of the support frame (31), one end of the central shaft (38) being located at the first A second transmission member (313) is provided at the lower side of the transmission member (312); a paddle plate (39) is provided on the central shaft (38) between the connecting rings (32); the other end of the central shaft (38) passes through the feeding hopper (2); and a auger plate (310) is provided on the central shaft (38) located inside the feeding hopper (2); a partition plate (13) is provided on one side of the connecting ring (32) in the box body (12); and the central shaft (38) is directed toward The feeding hopper (2) is inclined at an angle of 3-5° to the horizontal line, a pressure roller (311) is arranged on the inner side of the box body (12) on the rotating outer diameter of the screening roller (33), the support frame (31) is arranged at least three locations, a first discharge hopper (41) and a second discharge hopper (42) are arranged at the lower end of the box body (12) and in the corresponding areas of the screening roller (33), and a third discharge hopper (43) is arranged at the end of the box body (12) away from the feeding hopper (2).

2. A multi-stage automated screening device according to claim 1, characterized in that: The support frame (31) is rotatably connected to the box body (12), and the number of the screening rollers (33) distributed between the connecting rings (32) gradually decreases toward the inclined lower side.

3. A multi-stage automated screening device according to claim 1, characterized in that: The pressing roller (311) is rotatably connected to the box body (12), and the pressing roller (311) is tangent to the rotating outer diameter of the screening roller (33).

4. The multi-stage automated screening device according to claim 1, characterized in that: The central shaft (38) is rotatably connected to the support frame (31), and the central shaft (38) is welded to the shifting plate (39) and the auger plate (310).

5. The multi-stage automated screening device according to claim 1, characterized in that: The rotation outer diameter of the paddle (39) is tangent to the rotation inner diameter of the screening roller (33).

6. The multi-stage automated screening device according to claim 1, characterized in that: The transmission shaft (36) is rotatably connected to the upper end of the box body (12) via a support seat, and the transmission shaft (36) is arranged parallel to the central axis (38).

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