Screening structure for multi-stage screening equipment

Abstract

The utility model discloses a screening structure for multistage screening equipment, which relates to the technical field of ore screening and comprises a box body, two supporting seats are fixedly connected to the bottom of the box body, discharging grooves are formed in the front side and the bottom of the box body, a discharging hopper is fixedly connected to the bottom of the box body, and a feeding mechanism is mounted at the top of the box body. A dispersing mechanism is arranged below the feeding mechanism, the dispersing mechanism is installed in the rear wall of the box body, a stirring mechanism is installed in the box body, a plurality of discharging mechanisms are arranged on the front side of the box body, and a plurality of screening plates are fixedly connected in the box body. The ore screening device has the beneficial effects that a first motor works to drive a rotating shaft to rotate, ore added into a box body is scattered through a cylindrical rod, then the ore is scattered and falls onto a screening plate located on the top, a second motor works to drive the rotating shaft to rotate so as to drive a mounting plate to rotate, and then a stirring rod is used for stirring the ore being screened; the screening efficiency is improved, and blockage caused by ore accumulation can be avoided.

Description

Technical Field

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

[0002] Screening is a process of using a sieve to enable fine-grained materials smaller than the sieve holes in the material to pass through the sieve surface, while the coarse-grained materials larger than the sieve holes remain on the sieve surface, thereby completing the separation of coarse and fine materials. After ore is mined, in order to facilitate transportation and management, screening equipment is needed to perform multi-stage screening on the ore, so as to package ores of different sizes, which is convenient for transportation and subsequent use of the ore.

[0003] For example, the patent document with the publication number CN217888600U discloses an ore sorting device for mine mining. In the ore screening work, through the cooperation of a dust-proof structure, a dust-proof cloth curtain and a cover, it can effectively prevent dust from being discharged out of the screening box, so that a large amount of dust will not be discharged into the atmosphere to pollute the environment or endanger human health. Through multiple screening plates, multi-stage screening can be realized, and the ore can be screened more finely at one time, and the screening efficiency is higher.

[0004] However, during the use of the above patent, after the ore is added to the screening plate inside the screening box through the feeding hopper, since the screening plate is in an inclined state, the ore will roll on the screening plate for screening. However, when the feeding speed is too fast, the ore will accumulate on the surface of the screening plate, affecting the screening. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a screening structure for a multi-stage screening device to solve the above problems.

[0006] The utility model realizes the above purpose through the following technical solutions:

[0007] A screening structure for a multi-stage screening device includes a box body. Two support seats are fixedly connected to the bottom of the box body. Feeding grooves are formed in the front side and the bottom of the box body. A discharge hopper is fixedly connected to the bottom of the box body. A feeding mechanism is installed at the top of the box body. A dispersion mechanism is arranged below the feeding mechanism and installed in the rear wall of the box body. An agitation mechanism is installed in the box body. Multiple discharge mechanisms are arranged on the front side of the box body. Multiple screening plates are fixedly connected in the box body. The agitation mechanism includes a second motor. The second motor is installed on the top of the box body through a bracket. A rotating shaft is rotatably connected between the upper and lower walls of the box body. The output shaft of the second motor is fixedly connected to the top end of the rotating shaft. Multiple mounting plates are fixedly connected to the rotating shaft. Multiple agitation rods are fixedly connected to the bottom of the mounting plate.

[0008] Preferably, the agitation rod is a cylindrical rod made of wear-resistant metal material.

[0009] Preferably, there are three screening plates, and the screening accuracies of the three screening plates are different.

[0010] Preferably, the feeding mechanism includes a feeding pipe fixedly connected to the top of the box body. A rotating rod is rotatably connected in the feeding pipe. A blocking disk is fixedly connected in the rotating rod. A knob is fixedly connected to the rear side of the rotating rod.

[0011] Preferably, the dispersing mechanism includes a first motor mounted on the outer wall of the rear side of the box body through a bracket. An installation block is fixedly connected in the rear side wall of the box body. A rotating shaft is rotatably connected in the installation block. The output shaft of the first motor is fixedly connected to the rear end of the rotating shaft. A plurality of cylindrical rods are fixedly connected to the rotating shaft.

[0012] Preferably, the discharging mechanism includes two fixing blocks fixedly connected to the outer wall of the front side of the box body. A fixing rod is fixedly connected between the two fixing blocks. A covering plate is rotatably connected to the fixing rod. The covering plate is a rectangular plate made of plastic. A discharging plate is arranged below the covering plate and fixedly connected to the outer wall of the front side of the box body.

[0013] The beneficial effects are as follows: By the operation of the first motor, the rotating shaft is driven to rotate, so that the ore added to the box body is dispersed by the cylindrical rods, and then the ore falls dispersedly onto the screening plate at the top. By the operation of the second motor, the rotating shaft is driven to rotate, so that the mounting plate is driven to rotate, and then the ore being screened is stirred by the stirring rod, improving the screening efficiency and also avoiding blockage caused by ore accumulation.

[0014] The additional technical features and their advantages of the present utility model will be more clearly described in the following description content, or can be understood through the specific practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0016] Figure 1 is a perspective view of the screening structure of the multi-stage screening device according to the present utility model;

[0017] Figure 2 is a left view of the internal structure of the box body of the screening structure of the multi-stage screening device according to the present utility model;

[0018] Figure 3 is a perspective view of the box body of the screening structure of the multi-stage screening device according to the present utility model;

[0019] Figure 4It is an enlarged view of the structure at location A of the screening structure for the multi-stage screening device described in the present utility model;

[0020] Figure 5 It is a left view of the internal structure of the feed pipe of the screening structure for the multi-stage screening device described in the present utility model.

[0021] The description of the reference numerals is as follows: 1, box body; 101, support base; 102, discharge chute; 103, discharge hopper; 201, feed pipe; 202, rotating rod; 203, baffle plate; 204, knob; 301, first motor; 302, mounting block; 303, rotating shaft; 304, cylindrical rod; 401, second motor; 402, rotating shaft; 403, mounting plate; 404, stirring rod; 501, fixing block; 502, fixing rod; 503, cover plate; 504, discharge plate; 6, screening plate. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation 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 should not be construed as a limitation of the present utility model.

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

[0025] As Figures 1 - 5 shown, the screening structure for the multi-stage screening device includes a box body 1. Two support bases 101 are welded to the bottom of the box body 1. Discharge chutes 102 are provided on the front side and the bottom of the box body 1. A discharge hopper 103 is connected to the bottom of the box body 1 by bolts. A feeding mechanism for adding materials is installed on the top of the box body 1. A dispersing mechanism for dispersing ores is arranged below the feeding mechanism and is installed in the rear wall of the box body 1. A stirring mechanism for accelerating screening is installed in the box body 1. Multiple discharge mechanisms are arranged on the front side of the box body 1. Multiple screening plates 6 are fixedly connected in the box body 1. There are three screening plates 6, and the screening precisions of the three screening plates 6 are different.

[0026] The feeding mechanism includes a feeding pipe 201. The feeding pipe 201 is welded to the top of the box body 1. A rotating rod 202 is rotatably connected in the feeding pipe 201 through a bearing. A baffle plate 203 is welded in the rotating rod 202. A knob 204 is welded to the rear side of the rotating rod 202. By rotating the knob 204, the rotating rod 202 is driven to rotate, and then the baffle plate 203 is driven to rotate until the baffle plate 203 is rotated by 90 degrees. At this time, the baffle plate 203 no longer blocks the feeding of the feeding pipe 201. Then, the ore to be screened is added to the box body 1 by using the feeding pipe 201. Then, the knob 204 is rotated in the reverse direction to drive the baffle plate 203 to block the feeding pipe 201, reducing the dust emission during screening. The dispersing mechanism includes a first motor 301. The first motor 301 is installed on the rear outer wall of the box body 1 through a bracket. An installation block 302 is welded in the rear side wall of the box body 1. A rotating shaft 303 is rotatably connected in the installation block 302 through a bearing. The output shaft of the first motor 301 is connected to the rear end of the rotating shaft 303 through a coupling. A plurality of cylindrical rods 304 are welded on the rotating shaft 303. By the operation of the first motor 301, the rotating shaft 303 is driven to rotate, and then the ore added to the box body 1 is dispersed by using the cylindrical rods 304, and then the ore is dispersed and falls onto the screening plate 6 located at the top.

[0027] The stirring mechanism includes a second motor 401. The second motor 401 is installed on the top of the box body 1 through a bracket. A rotating shaft 402 is rotatably connected between the upper and lower walls of the box body 1 through a bearing. The output shaft of the second motor 401 is connected to the top end of the rotating shaft 402 through a coupling. A plurality of mounting plates 403 are welded on the rotating shaft 402. A plurality of stirring rods 404 are welded to the bottom of the mounting plates 403. The stirring rods 404 are cylindrical rods made of wear-resistant metal materials. By the operation of the second motor 401, the rotating shaft 402 is driven to rotate, and then the mounting plates 403 are driven to rotate, and then the ore being screened is stirred by using the stirring rods 404, improving the ore screening efficiency and also being able to avoid blockage caused by ore accumulation. The discharging mechanism includes two fixing blocks 501. The two fixing blocks 501 are connected to the front outer wall of the box body 1 by bolts. A fixing rod 502 is welded between the two fixing blocks 501. A cover plate 503 is rotatably connected to the fixing rod 502 through a bearing. The cover plate 503 is a rectangular plate made of plastic with a small mass. A discharging plate 504 is arranged below the cover plate 503. The discharging plate 504 is connected to the front outer wall of the box body 1 by bolts. After being screened by the screening plate 6, the ore particles will roll along the screening plate 6 into the discharging chute 102. At this time, since the cover plate 503 is rotatably connected to the fixing rod 502 through a bearing, under the impact of the ore particles, the cover plate 503 will rotate on the fixing rod 502, thus no longer hindering the discharging of the ore particles. Then, the ore particles will roll onto the discharging plate 504 and discharge along the discharging plate 504.

[0028] Working principle: When in use, by rotating the knob 204, the rotating rod 202 is driven to rotate, and then the baffle 203 is driven to rotate until the baffle 203 is rotated by 90 degrees. At this time, the baffle 203 no longer blocks the feeding of the feeding pipe 201. Then, the ore to be screened is added into the box body 1 through the feeding pipe 201. At the same time, the first motor 301 works to drive the rotating shaft 303 to rotate, so that the ore added into the box body 1 is dispersed by the cylindrical rod 304, and then the ore is dispersed and falls onto the screening plate 6 at the top. Then, the knob 204 is rotated in the reverse direction to drive the baffle 203 to block the feeding pipe 201, reducing the dust emission during screening. Then, the second motor 401 works to drive the rotating shaft 402 to rotate, so as to drive the mounting plate 403 to rotate, and then the stirring rod 404 is used to stir the ore being screened, improving the ore screening efficiency and also avoiding blockage caused by ore accumulation. After being screened by the screening plate 6 at the top, the larger ore particles will roll along the screening plate 6 into the discharge chute 102. At this time, since the cover plate 503 is rotatably connected to the fixed rod 502 through a bearing, under the impact of the ore particles, the cover plate 503 will rotate on the fixed rod 502, thus no longer hindering the discharge of the ore particles. Then, the ore particles will roll onto the discharge plate 504 and be discharged along the discharge plate 504. The medium-sized ore particles remaining after the first-stage screening will fall onto the surface of the screening plate 6 in the middle for the second-stage screening, and then be discharged through the discharge mechanism in the middle. The small ore particles remaining after the second-stage screening will fall onto the surface of the screening plate 6 at the bottom for the third-stage screening, and finally be discharged through the discharge mechanism at the bottom. The tiny ore particles after the third-stage screening will fall to the bottom of the box body 1 and be discharged from the device through the discharge hopper 103.

[0029] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present 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 present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A screening structure for a multi-stage screening device, comprising a housing (1), characterized in that: The bottom of the box (1) is fixedly connected to two support seats (101), the front side and the bottom of the box (1) are both provided with discharge grooves (102), the bottom of the box (1) is fixedly connected to a discharge hopper (103), a feeding mechanism is installed on the top of the box (1), a dispersion mechanism is arranged below the feeding mechanism, the dispersion mechanism is installed in the rear wall of the box (1), a stirring mechanism is installed in the box (1), a plurality of discharge mechanisms are arranged on the front side of the box (1), and a plurality of screening plates (6) are fixedly connected in the box (1); The stirring mechanism comprises a second motor (401), the second motor (401) is mounted on the top of the box body (1) via a bracket, a rotating shaft (402) is rotatably connected between the upper and lower walls of the box body (1), the output shaft of the second motor (401) is fixedly connected to the top of the rotating shaft (402), a plurality of mounting plates (403) are fixedly connected to the rotating shaft (402), and a plurality of stirring rods (404) are fixedly connected to the bottom of the mounting plate (403).

2. The screening structure for multi-stage screening equipment according to claim 1, characterized in that: The stirring rod (404) is a cylindrical rod made of wear-resistant metal material.

3. The screening structure for multi-stage screening equipment according to claim 1, characterized in that: There are three screening plates (6), and the screening accuracies of the three screening plates (6) are different.

4. The screening structure for multi-stage screening equipment according to claim 1, characterized in that: The feeding mechanism comprises a feeding pipe (201), the feeding pipe (201) being fixedly connected to the top of the box body (1), a rotating rod (202) being rotatably connected to the feeding pipe (201), a baffle (203) being fixedly connected to the rotating rod (202), and a knob (204) being fixedly connected to the rear side of the rotating rod (202).

5. The screening structure for multi-stage screening equipment according to claim 1, characterized in that: The dispersion mechanism comprises a first motor (301), the first motor (301) being mounted on the rear outer wall of the box body (1) via a bracket, a mounting block (302) being fixedly connected to the rear wall of the box body (1), a rotating shaft (303) being rotatably connected to the mounting block (302), an output shaft of the first motor (301) being fixedly connected to the rear end of the rotating shaft (303), and a plurality of cylindrical rods (304) being fixedly connected to the rotating shaft (303).

6. The screening structure for multi-stage screening equipment according to claim 1, characterized in that: The discharging mechanism comprises two fixed blocks (501), the two fixed blocks (501) are fixedly connected to the front outer wall of the box body (1), a fixed rod (502) is fixedly connected between the two fixed blocks (501), a cover plate (503) is rotatably connected to the fixed rod (502), the cover plate (503) is a rectangular plate made of plastic, a discharging plate (504) is arranged below the cover plate (503), and the discharging plate (504) is fixedly connected to the front outer wall of the box body (1).

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