Vibrating screen distributor and screening equipment

Abstract

The utility model belongs to the field of ore screening, and particularly relates to a vibrating screen distributor and screening equipment, which is arranged between a feeding belt and a vibrating screen, including a distribution hopper, a receiving plate is connected to the bottom of the distribution hopper through a hinge, and an adjusting part drives the receiving plate to flip around the hinge to adjust the inclination angle of the receiving plate; the ore falls to the distribution hopper and the receiving plate through the feeding belt, and a diverter plate is arranged on the ore falling path, and the diverter plate surface facing the ore is in a "∧" shape, guiding the ore to disperse along the plate surface to both sides of the diverter plate and flow into the vibrating screen, and a wear-resistant layer is attached to the plate surface. Therefore, compared with the fixed receiving plate in the prior art, the diverter plate surface is in a "∧" shape, guiding the ore to disperse along the plate surface to both sides of the diverter plate and flow into the vibrating screen, reducing the concentration of ore in the middle of the vibrating screen.

Description

Technical Field

[0001] The utility model belongs to the field of ore screening, and particularly relates to a vibrating screen distributor and screening equipment. Background Art

[0002] Screening is an indispensable part of the entire ore (or sand and gravel aggregate) crushing production line. Vibrating screen is the main screening equipment. Therefore, the screening performance will directly affect the production capacity, circulating load and production cost of the entire system.

[0003] Most of the vibrating screens used in the market are Sandvik LF3060D linear vibrating screens, which can screen the input material of 0-70mm vanadium-titanium magnetite and the screened material of 0-12mm vanadium-titanium magnetite. The processing capacity is basically 900 tons / hour, and the screening efficiency is basically about 90%.

[0004] The specific operation process is: the vibrating screen is fed by a feeding belt with a bandwidth of 2m and a belt speed of about 1.8m / s. However, in actual use, there are the following three problems: First, the slope of the ore receiving plate at the bottom of the feeding belt is not enough, and the incoming ore contains powder ore and moisture, which easily causes the accumulation of powder ore on the ore receiving plate. The accumulated powder ore affects the falling trajectory of the ore. After the ore falls, it is concentrated in the middle of the vibrating screen feeding section, making the material layer thicker after the ore is concentrated, and it cannot be effectively stratified at the vibrating screen feeding section. The ore has to vibrate to the middle of the vibrating screen before it starts to be stratified, affecting the screening efficiency. Second, the efficient screening of the vibrating screen starts from the feeding section of the vibrating screen, and the width of the feeding belt is 2 meters, which is less than the width of the vibrating screen of 3 meters, and there is a height difference of about 1.5 meters between the feeding belt and the vibrating screen. The ore is impacted at a certain speed, and the ore often starts to be graded in the middle of the vibrating screen. The utilization rate of the vibrating screen is low, and the ore has left the vibrating screen before the screening is completed, resulting in an increase in the circulation of the vibrating screen and the crusher. Third, the powder ore accumulated on the receiving plate is easy to compact, which is very inconvenient to clean. After cleaning, it often only takes about 4 hours to pile up again. The work is labor-intensive, and the accumulated powder ore wears the feeding belt, which seriously affects the service life of the belt and causes the belt to deviate easily.

[0005] The above three problems are urgently needed to be solved by those skilled in the art. Utility Model Content

[0006] In view of the above problems, the utility model proposes a vibrating screen distributor and screening equipment, which is arranged between a feeding belt and a vibrating screen, and comprises a distributor hopper, a receiving plate is connected to the lower part of the distributor hopper through a hinge, and an adjusting part drives the receiving plate to flip around the hinge to adjust the inclination angle of the receiving plate;

[0007] The ore falls to the distribution hopper and the ore receiving plate through the feeding belt. A diverter plate is arranged on the ore falling path. The diverter plate surface facing the ore is in a "∧" shape, guiding the ore to disperse along the plate surface to both sides of the diverter plate and flow into the vibrating screen. A wear-resistant layer is attached to the plate surface.

[0008] Preferably, a feeding belt is arranged at the feeding port of the distribution hopper, and a lining plate mounting frame is welded on the inner wall of the distribution hopper opposite the feeding port. The lining plate mounting frame is a three-dimensional tripod structure, and any side surface of the three-dimensional tripod is welded to the inner wall of the distribution hopper, and the other two side surfaces are detachably mounted with lining plates to form a "∧"-shaped plate surface.

[0009] Preferably, the liner mounting bracket facing the inner wall of the material distribution hopper is the first bracket, and the angle between the bracket and the material distribution hopper is 10°-14°.

[0010] Preferably, the hinged part includes a bearing support, a bearing, a round steel and a steel pipe that match each other. The bearing support is fixed at the discharge port of the material distribution hopper. The bearing support is sequentially sleeved with a bearing, a steel pipe and a round steel, and the round steel is fixedly matched with the top surface of the ore receiving plate.

[0011] Preferably, the adjustment member comprises a matching nut base and a screw rod, the nut base is fixedly mounted on the distribution hopper bracket located at the bottom side of the ore receiving plate, the screw rod is meshed with the nut base, and the protruding end of the screw rod is hinged to the ore receiving plate.

[0012] Preferably, the screw is a full-thread screw, and the nut base is a matching full-thread nut base.

[0013] Preferably, there are at least three groups of adjusting members, which are arranged along the width direction of the ore receiving plate.

[0014] Preferably, there are several lining plates, and both ends of the lining plates are overlapped on the lining plate mounting frame and fixed to each other by screws.

[0015] Preferably, the material distribution hopper is made of steel plate and has a thickness of 14mm-15mm.

[0016] The present application also claims protection for a screening device, which uses the above-mentioned vibrating screen distributor, including a feeding belt and a vibrating screen, wherein a vibrating screen distributor is arranged between the feeding belt and the vibrating screen to transport and disperse the ore.

[0017] Beneficial Effects

[0018] 1. The utility model provides hinged parts, ore receiving plates and adjusting parts, which cooperate with each other to achieve rapid adjustment of the inclination angle of the ore receiving plate, and further provides a diverter plate. Therefore, compared with the fixed ore receiving plate in the prior art, the utility model achieves the following four technical effects: First, the diverter plate surface is in a "∧" shape, which guides the ore to disperse along the plate surface to both sides of the diverter plate and flow into the vibrating screen, thereby reducing the concentration of ore in the middle of the vibrating screen; second, the diverter plate can effectively slow down the falling speed of the ore, so that the ore begins to be graded under the action of the exciting force in the feeding section of the vibrating screen, thereby increasing the running time of the ore on the vibrating screen and improving the screening effect; third, the inclination angle of the ore receiving plate enables the distributor to have an angle adjustment function, so that the angle can be quickly adjusted according to the belt speed set by the feeding belt to ensure the distribution effect; fourth, a wear-resistant layer is attached to the plate surface, so the wear area that is often in contact with the ore can be quickly repaired and replaced, thereby increasing the service life of the distributor and reducing the difficulty of maintenance.

[0019] 2. The lining plate mounting frame is a three-dimensional tripod structure. As we all know, the tripod structure is highly stable. Therefore, even if it is often hit by ore, it still has a good maintenance effect and is not easy to be damaged. Not only that, the lining plates are detachably installed on both sides of the tripod. The lining plates are relatively often in contact with ore and are very easy to wear. Through the detachable arrangement, they can be replaced and maintained regularly to increase the service life of the distributor.

[0020] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of a vibrating screen distributor in an embodiment of the present invention is shown;

[0023] Figure 2 A schematic diagram of a mining plate in the prior art is shown;

[0024] Figure 3 A schematic diagram of a diverter plate in an embodiment of the present invention is shown.

[0025] In the figure,

[0026] 1. Material distribution hopper; 2. Articulated parts; 3. Ore receiving plate; 4. Adjustment parts;

[0027] 5. Diverter plate; 5A. Plate surface; 51. Liner plate mounting frame; 51a. First bracket; 52. Liner plate. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] refer to Figure 1 , Figure 1 A schematic diagram of a vibrating screen distributor in an embodiment of the present invention is shown; it can be clearly seen from the schematic diagram that a vibrating screen distributor is arranged between the feeding belt and the vibrating screen, and is characterized in that it includes a distribution hopper 1, and the distribution hopper 1 is made of A3 steel plate with a thickness of 14mm-15mm. An ore receiving plate 3 is connected to the lower part of the distribution hopper 1 through a hinge 2, and the hinge 2 includes a bearing support, a bearing, a round steel and a steel pipe that match each other. The bearing support is fixed to the discharge port of the distribution hopper 1, and the bearing, steel pipe and round steel are sequentially sleeved in the bearing support, and the round steel is fixedly matched with the top surface of the ore receiving plate 3. The adjustment part 4 drives the ore receiving plate 3 to flip around the hinge 2 to adjust the inclination angle of the ore receiving plate 3;

[0030] The ore falls to the distribution hopper 1 and the ore receiving plate 3 through the feeding belt. A diverter plate 5 is arranged on the ore falling path. The plate surface 5A of the diverter plate 5 facing the ore is in a "∧" shape, which guides the ore to be dispersed along the plate surface 5A to both sides of the diverter plate 5 and flow into the vibrating screen. A wear-resistant layer is attached to the plate surface 5A.

[0031] The utility model realizes the rapid adjustment of the inclination angle of the ore receiving plate 3 by setting the hinged member 2, the ore receiving plate 3 and the adjusting member 4, which cooperate with each other, and further sets the diverter plate 5. Figure 2 , Figure 2A schematic diagram of an ore plate in the prior art is shown; it can be clearly seen from the schematic diagram that the existing ore plate is fixedly arranged between the feeding belt and the feeding section. Because the inclination angle of the ore plate is constant, the belt speed of the feeding belt cannot be adjusted, resulting in insufficient slope of the ore plate, and the incoming ore contains powder ore and moisture, causing powder ore to accumulate on the receiving plate. The accumulated powder ore affects the falling trajectory of the ore, and the ore is concentrated in the middle of the vibrating screen feeding section after falling. After the ore is concentrated, the material layer becomes thicker and cannot be effectively stratified at the vibrating screen feeding section. The ore has to vibrate to the middle of the vibrating screen before stratification begins, affecting the screening efficiency.

[0032] In the present application, compared with the fixed ore receiving plate 3 in the prior art, the following four technical effects are achieved: First, the plate surface 5A of the diverter plate 5 is in a "∧" shape, which guides the ore to disperse along the plate surface 5A to both sides of the diverter plate 5 and flow into the vibrating screen, reducing the concentration of ore in the middle of the vibrating screen; second, the diverter plate 5 can effectively slow down the falling speed of the ore, so that the ore begins to be stratified under the action of the exciting force in the feeding section of the vibrating screen, thereby increasing the running time of the ore on the vibrating screen and improving the screening effect; third, the inclination angle of the ore receiving plate 3 enables the distributor to have an angle adjustment function, so that the angle can be quickly adjusted according to the belt speed set by the feeding belt to ensure the distribution effect; fourth, a wear-resistant layer is attached to the plate surface 5A, so the wear area that is often in contact with the ore can be quickly repaired and replaced, thereby increasing the service life of the distributor and reducing the difficulty of maintenance.

[0033] refer to Figure 3 , Figure 3 A schematic diagram of a diverter plate in an embodiment of the present invention is shown; it can be clearly seen from the schematic diagram that a feeding belt is arranged at the feeding port of the distribution hopper 1, and a liner mounting frame 51 is welded on the inner wall of the distribution hopper 1 opposite the feeding port, and the liner mounting frame 51 is a three-dimensional tripod structure, and any side surface of the three-dimensional tripod is welded to the inner wall of the distribution hopper 1, and liner plates 52 are detachably installed on the other two side surfaces to form a "∧"-shaped plate surface 5A, and there are several liner plates 52, and the two ends of the liner plates 52 are overlapped on the liner mounting frame 51 bracket and fixed to each other by screws.

[0034] The lining plate mounting frame 51 facing the inner wall of the material distribution hopper 1 is a first bracket 51a, and the angle between the bracket 51a and the material distribution hopper 1 is 10°-14°, preferably 12°.

[0035] It is worth noting that most of the devices on the market that can adjust linear reciprocating movement can be used for the adjustment member 4 of the present application. One of them is listed in this embodiment for reference only and will not be repeated. There are at least three groups of adjustment members 4, which are arranged along the width direction of the ore receiving plate 3. The adjustment member 4 includes a matching nut base and a screw rod. The nut base is fixedly installed on the bracket of the distribution hopper 1 on the bottom side of the ore receiving plate 3, the screw rod is meshed with the nut base, and the protruding end of the screw rod is hinged to the ore receiving plate 3.

[0036] The present application also claims protection for a screening device, using the above-mentioned vibrating screen distributor, characterized in that it includes a feeding belt and a vibrating screen, and a vibrating screen distributor is arranged between the feeding belt and the vibrating screen to transport and disperse the ore.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vibrating screen distributor, arranged between a feeding belt and a vibrating screen, characterized in that: It comprises a material distribution hopper (1), a receiving plate (3) is connected to the lower part of the material distribution hopper (1) via a hinge (2), and an adjusting member (4) drives the receiving plate (3) to flip around the hinge (2) to adjust the tilt angle of the receiving plate (3); The ore falls to the distribution hopper (1) and the ore receiving plate (3) through the feeding belt, and a diverter plate (5) is arranged on the ore falling path. The plate surface (5A) of the diverter plate (5) facing the ore is in a "∧" shape, guiding the ore to be dispersed along the plate surface (5A) to both sides of the diverter plate (5) and flow into the vibrating screen. A wear-resistant layer is attached to the plate surface (5A).

2. A vibrating screen distributor according to claim 1, characterized in that: A feeding belt is arranged at the feeding port of the material distribution hopper (1), and a lining plate mounting frame (51) is welded on the inner wall of the material distribution hopper (1) facing the feeding port. The lining plate mounting frame (51) is in the form of a three-dimensional tripod structure. Any side surface of the three-dimensional tripod is welded to the inner wall of the material distribution hopper (1), and lining plates (52) are detachably mounted on the other two side surfaces, forming a "∧"-shaped plate surface (5A).

3. A vibrating screen distributor according to claim 2, characterized in that: The lining plate mounting frame (51) facing the inner wall of the material distribution hopper (1) is a first bracket (51a), and the angle between the bracket (51a) and the material distribution hopper (1) is 10°-14°.

4. A vibrating screen distributor according to claim 1, characterized in that: The hinged member (2) comprises a bearing support, a bearing, a round steel and a steel pipe which are matched with each other. The bearing support is fixed at the discharge port of the material distribution hopper (1). The bearing, the steel pipe and the round steel are sequentially sleeved and matched in the bearing support, and the round steel is fixedly matched with the top surface of the ore receiving plate (3).

5. A vibrating screen distributor according to claim 1, characterized in that: The adjusting member (4) comprises a matching nut base and a screw rod, the nut base is fixedly mounted on a bracket of the material distribution hopper (1) located at the bottom side of the ore receiving plate (3), the screw rod is meshed with the nut base, and the protruding end of the screw rod is hinged to the ore receiving plate (3).

6. A vibrating screen distributor according to claim 5, characterized in that: The screw rod is a full-thread screw rod, and the nut base is a matching full-thread nut base.

7. A vibrating screen distributor according to claim 4, characterized in that: There are at least three groups of adjusting members (4), which are arranged along the width direction of the ore receiving plate (3).

8. A vibrating screen distributor according to claim 2, characterized in that: The lining plate (52) comprises a plurality of pieces, and the two ends of the lining plate (52) are overlapped on the bracket of the lining plate mounting frame (51) and fixed to each other by screws.

9. A vibrating screen distributor according to claim 1, characterized in that: The material distribution hopper (1) is made of A3 steel plate and has a thickness of 14 mm-15 mm.

10. A screening device, using the vibrating screen distributor according to any one of claims 1 to 9, characterized in that: The invention comprises a feeding belt and a vibrating screen, wherein a vibrating screen distributor is arranged between the feeding belt and the vibrating screen for transporting and dispersing ore.

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