Screening device for mine

Abstract

The utility model relates to the technical field of screening, and particularly discloses a screening device for a mine, which comprises a mounting frame, a screening device and a screening device, the two side plates are symmetrically mounted on the top surfaces of the front end and the rear end of the mounting frame; the feeding hopper is fixedly mounted on the top surfaces of the right ends of the two side plates, and the left side surface and the bottom surface of the lower end part of the feeding hopper are hollowed out; and the discharging assembly is connected with the feeding hopper, the discharging assembly is in contact with a screening assembly, and the screening assembly is arranged between the mounting frame and the side plate. Four supports are fixedly mounted on the bottom face of the mounting frame, and the four supports are distributed at the bottoms of the four corners of the mounting frame. According to the screening device for the mine, through the arranged screening assembly, the effect that the screen frame can vibrate up and down in the reciprocating screening process can be achieved under the cooperation of the discharging assembly, the screen frame can be prevented from being blocked, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening, in particular to a screening device for mines. Background Technique

[0002] A mine refers to an independent production and operation unit that extracts ore with a certain mining boundary. Mines mainly include one or more mining workshops (or mine shafts, open-pit mines, etc.) and some auxiliary workshops. Most mines also include ore dressing plants (coal washing plants). The ores mined in mines vary in size. Before crushing the ores, it is necessary to screen out the smaller ores.

[0003] According to a screening device for mines disclosed in Chinese Patent CN216064101U, although the purpose of screening is achieved, the patent adopts an inclined screening method, and the screening force for ores is insufficient, unable to screen thoroughly, reducing the final screening efficiency.

[0004] Therefore, we propose a screening device for mines to solve the problem. Content of the Utility Model

[0005] The purpose of the utility model is to provide a screening device for mines, which solves the problems in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A screening device for mines, comprising:

[0008] A mounting frame, arranged horizontally;

[0009] Side plates, two in number, symmetrically installed on the top surfaces of the front and rear ends of the mounting frame;

[0010] A feed hopper, fixedly installed on the top surfaces of the right ends of the two side plates, and the left side surface and the bottom surface of the lower end of the feed hopper are provided with hollow-outs;

[0011] A blanking assembly, connected to the feed hopper, the blanking assembly is in contact with a screening assembly, and the screening assembly is arranged between the mounting frame and the side plates.

[0012] Preferably, the bottom surface of the mounting frame is fixedly installed with supports, and the number of the supports is four. The four supports are distributed at the bottoms of the four corners of the mounting frame. The supports installed at the bottoms of the four corners of the mounting frame can play a role in firmly supporting the whole device.

[0013] Preferably, a dust-proof cover is fixedly installed on the top surface of the side plate, and the right end surface of the dust-proof cover is fixedly installed with the left end surface of the feed hopper. By installing the dust-proof cover, it is possible to prevent dust from floating everywhere during the screening process of ores.

[0014] Preferably, the blanking assembly includes:

[0015] A motor is arranged behind the feed hopper. A connecting shaft is fixedly installed at the output end of the motor. The connecting shaft movably penetrates through the back surface of the feed hopper and extends into the feed hopper.

[0016] Deflector plates are arranged at the feed inlet of the feed hopper. The number of deflector plates is three, and they are evenly and fixedly installed on the outer wall of the connecting shaft.

[0017] A blanking plate is inclined below the deflector plates. A shaft is movably sleeved on the blanking plate. Both ends of the shaft are fixedly installed on the inner wall of the feed hopper. The blanking plate is in a "7" shape, and one end of the blanking plate has a rounded corner setting, and the other end penetrates through the hollowed-out part on the left side surface of the feed hopper and extends to the left of the feed hopper.

[0018] Preferably, a motor base is fixedly installed on the lower surface of the motor. The motor base is fixedly installed on the back surface of the feed hopper. The installed motor base can play a role in firmly supporting the motor and enable the motor to work normally.

[0019] Preferably, the weight of the left end of the blanking plate is greater than the weight of its right end, so that when the deflector plate does not extrude the blanking plate, the blanking plate can automatically reset under the condition of unbalanced weight.

[0020] Preferably, the screening assembly includes:

[0021] A screen frame is arranged above the mounting frame, and the bottom surface of the screen frame is fixedly connected to the top surface of the mounting frame through a spring. The screen frame is slidably arranged on the inner side surface of the side plate.

[0022] Auxiliary rollers are clamped in the grooves formed on the bottom surface of the screen frame, and both ends of the auxiliary rollers are fixedly installed on the surface of the side plate.

[0023] An auxiliary plate, the bottom surface of the auxiliary plate is fixedly installed on the top surface of the right end of the screen frame, and the top end of the auxiliary plate is provided with a cylindrical protrusion. The cylindrical protrusion at the top end of the auxiliary plate is in contact with the rounded corner at one end of the blanking plate.

[0024] Preferably, the left side of the screen frame is fixedly connected to the top surface of the left end of the mounting frame through a rubber plate. The front and rear ends of the rubber plate are slidably arranged on the inner side surface of the side plate. An outlet plate fixedly installed on the support is arranged below the screen frame. The rubber plate can play a certain role in limiting the lateral movement of the screen frame, and the arranged outlet plate facilitates the discharge of the screened ore.

[0025] A screening device for mines provided by the present utility model has the following beneficial effects:

[0026] (1) The screening device for the mine can separate the fed ore through the arranged feeding component, avoiding the accumulation of ore for screening and preventing the reduction of the screening efficiency of the ore.

[0027] (2) The screening device for the mine can achieve the effect of vertical vibration during the reciprocating screening process of the screen frame through the arranged screening component in cooperation with the feeding component, which can avoid the blockage of the screen frame and enhance the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall three-dimensional structure schematic diagram of a screening device for a mine of the present utility model;

[0029] Figure 2 is a screening device for a mine of the present utility model Figure 1 partial structure schematic diagram;

[0030] Figure 3 is the bottom view structure schematic diagram of the screen frame in a screening device for a mine of the present utility model;

[0031] Figure 4 is a screening device for a mine of the present utility model Figure 3 magnified structure schematic diagram at A;

[0032] Figure 5 is the structure schematic diagram of the auxiliary plate in a screening device for a mine of the present utility model.

[0033] In the figure: 1 mounting frame, 2 side plate, 3 support, 4 discharge plate, 5 feed hopper, 6 dust cover, 7 feeding component, 71 motor, 72 connecting shaft, 73 dial plate, 74 feeding plate, 75 shaft, 8 screening component, 81 screen frame, 82 rubber plate, 83 auxiliary roller, 84 auxiliary plate, 85 spring, 9 motor base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In order to have a clearer understanding of the technical features, objectives and effects of the present utility model, the specific embodiments of the present utility model will now be described with reference to the accompanying drawings.

[0035] Embodiment 1

[0036] A preferred embodiment of the screening device for a mine provided by the present utility model is as Figures 1 to 5 shown:

[0037] A screening device for a mine includes:

[0038] The mounting frame 1 is arranged horizontally, and the bottom surface of the mounting frame 1 is fixedly installed with supports 3. The number of the supports 3 is four, and the four supports 3 are distributed at the bottoms of the four corners of the mounting frame 1. The supports 3 installed at the bottoms of the four corners of the mounting frame 1 can play a role in firmly supporting the whole device;

[0039] There are two side plates 2, which are symmetrically mounted on the top surfaces of the front and rear ends of the mounting frame 1. A dust cover 6 is fixedly mounted on the top surface of the side plate 2. The right end surface of the dust cover 6 is fixedly mounted on the left end surface of the feed hopper 5. The installed dust cover 6 can prevent dust from flying everywhere during the ore screening process.

[0040] The feed hopper 5 is fixedly mounted on the top surface of the right ends of the two side plates 2, and the left side surface and the bottom surface of the lower end of the feed hopper 5 are hollowed out;

[0041] The material discharge assembly 7 is connected to the feed hopper 5 . The material discharge assembly 7 is provided in contact with a screening assembly 8 . The screening assembly 8 is provided between the mounting frame 1 and the side plate 2 .

[0042] The blanking assembly 7 comprises:

[0043] The motor 71 is arranged at the rear of the feed hopper 5. The output end of the motor 71 is fixedly mounted with a connecting shaft 72. The connecting shaft 72 movably penetrates the back of the feed hopper 5 and extends into the feed hopper 5.

[0044] The paddles 73 are arranged at the feeding port of the feeding hopper 5, and are three in number and are evenly fixedly mounted on the outer wall of the connecting shaft 72;

[0045] The unloading plate 74 is obliquely arranged below the dial plate 73. The unloading plate 74 is movably sleeved with a shaft 75. Both ends of the shaft 75 are fixedly installed on the inner wall of the feed hopper 5. The unloading plate 74 is in a "7" shape, and one end of the unloading plate 74 has a rounded corner, and the other end passes through the hollow part on the left side of the feed hopper 5 and extends to the left side of the feed hopper 5.

[0046] In this embodiment, a motor base 9 is fixedly installed on the lower surface of the motor 71, and the motor base 9 is fixedly installed on the back side of the feed hopper 5. The installed motor base 9 can provide a stable support for the motor 71, so that the motor 71 can work normally.

[0047] In this embodiment, the connecting shaft 72 is rotated by starting the motor 71, so that the paddle plate 73 can be rotated to paddle the ore entering from the feed hopper 5, to separate them and avoid them from piling up and affecting the screening effect. Finally, they are discharged from the discharge plate 74. At the same time, the discharge plate 74 will be squeezed by the paddle plate 73 to form repeated movements, which can also disperse the ore passing through the discharge plate 74 again to facilitate screening.

[0048] Furthermore, the weight of the left end of the blanking plate 74 is greater than the weight of the right end thereof, so that when the dial plate 73 does not press the blanking plate 74, the blanking plate 74 can be automatically reset under weight imbalance.

[0049] Example 2

[0050] Based on the implementation of the above solution, the screening assembly 8 includes:

[0051] A screen frame 81, which is arranged above the mounting frame 1, and the bottom surface is fixedly connected to the top surface of the mounting frame 1 through a spring 85. The screen frame 81 is slidably arranged on the inner side surface of the side plate 2;

[0052] An auxiliary roller 83, which is clamped in a groove formed in the bottom surface of the screen frame 81, and both ends of the auxiliary roller 83 are fixedly installed on the surface of the side plate 2;

[0053] An auxiliary plate 84, the bottom surface of the auxiliary plate 84 is fixedly installed on the top surface of the right end of the screen frame 81, and the top end of the auxiliary plate 84 is provided with a cylindrical protrusion, and the cylindrical protrusion at the top end of the auxiliary plate 84 is in contact with the rounded corner at one end of the blanking plate 74.

[0054] In this embodiment, the left surface of the screen frame 81 is fixedly connected to the top surface of the left end of the mounting frame 1 through a rubber plate 82. The front and rear ends of the rubber plate 82 are slidably arranged on the inner side surface of the side plate 2. Here, the rubber plate 82 has a certain elasticity, which is convenient for deformation and restoration to its original state. An outlet plate 4 fixedly installed with the support 3 is arranged below the screen frame 81. The arrangement of the rubber plate 82 can play a certain limiting role in the lateral movement of the screen frame 81, and the arranged outlet plate 4 facilitates the discharge of the screened ore.

[0055] In the specific implementation process, under the reciprocating movement of the blanking plate 74, the extrusion between one end of the blanking plate 74 and the upper end of the auxiliary plate 84 can be caused, so that the screen frame 81 moves. Under the action of the spring 85 and the auxiliary roller 83, the screen frame 81 can vibrate up and down during the reciprocating screening process, avoiding the blockage of the screen frame 81 and enhancing the screening efficiency.

[0056] Working principle: First, start the motor 71, and then feed the ore to be screened through the feed hopper 5. When the motor 71 is started, the connecting shaft 72 can drive the baffle 73 to rotate, which can separate the just-entered ore. At the same time, during the rotation of the baffle 73, it will squeeze the blanking plate 74. Since the weight of the left end of the blanking plate 74 is greater than that of its right end, when the baffle 73 does not squeeze the blanking plate 74, the blanking plate 74 can automatically reset under the unbalanced weight, realizing the reciprocation of the blanking plate 74, and the purpose of separating the ore again can be achieved, facilitating the subsequent screening work. Under the reciprocating movement of the blanking plate 74, the auxiliary plate 84 can be squeezed, so that the screen frame 81 moves. Due to the arranged auxiliary roller 83 and spring 85, the screen frame 81 can vibrate up and down during the lateral reciprocation, which can avoid the blockage of the screen frame 81 and enhance the screening efficiency. The screened ore will fall on the outlet plate 4 and be discharged.

[0057] The above is only a schematic specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present utility model shall fall within the scope of protection of the present utility model. Moreover, it should be noted that the components of the present utility model are not limited to the above overall application. Each technical feature described in the specification of the present utility model can be used alone according to actual needs or multiple features can be combined for use. Therefore, the present utility model should logically cover other combinations and specific applications related to the utility model points of this case.

Claims

1. A screening device for mines, characterized in that: include: A mounting frame (1), arranged horizontally; Side panels (2), two in number, symmetrically mounted on the top surfaces of the front and rear ends of the mounting frame (1); A feed hopper (5) is fixedly mounted on the top surface of the right ends of the two side plates (2), and the left side surface and the bottom surface of the lower end of the feed hopper (5) are hollowed out; A material discharge assembly (7) is connected to the feed hopper (5), and the material discharge assembly (7) is provided in contact with a screening assembly (8), and the screening assembly (8) is provided between the mounting frame (1) and the side plate (2).

2. A mining screening device according to claim 1, characterized in that: A bracket (3) is fixedly mounted on the bottom surface of the mounting frame (1), and the number of the brackets (3) is four, and the four brackets (3) are distributed at the bottom of the four corners of the mounting frame (1).

3. A mining screening device according to claim 1, characterized in that: A dust cover (6) is fixedly mounted on the top surface of the side plate (2), and the right end surface of the dust cover (6) is fixedly mounted on the left end surface of the feed hopper (5).

4. A mining screening device according to claim 1, characterized in that: The blanking assembly (7) comprises: A motor (71) is arranged at the rear of the feed hopper (5), and a connecting shaft (72) is fixedly mounted at the output end of the motor (71), and the connecting shaft (72) movably penetrates the back of the feed hopper (5) and extends into the feed hopper (5); The paddles (73) are arranged at the feeding port of the feeding hopper (5), the number of which is three and which are evenly fixed on the outer wall of the connecting shaft (72); A feed plate (74) is obliquely arranged below the dial plate (73); a shaft (75) is movably sleeved on the feed plate (74); both ends of the shaft (75) are fixedly mounted on the inner wall of the feed hopper (5); the feed plate (74) is in the shape of a letter "7", and one end of the feed plate (74) has a rounded corner, while the other end passes through the hollow portion on the left side of the feed hopper (5) and extends to the left side of the feed hopper (5).

5. A mining screening device according to claim 4, characterized in that: A motor seat (9) is fixedly mounted on the lower surface of the motor (71), and the motor seat (9) is fixedly mounted on the back side of the feed hopper (5).

6. A mining screening device according to claim 4, characterized in that: The weight of the left end of the blanking plate (74) is greater than the weight of the right end thereof.

7. A mining screening device according to claim 1, characterized in that: The screening assembly (8) comprises: A screen frame (81) is arranged above the mounting frame (1), and the bottom surface is fixedly connected to the top surface of the mounting frame (1) via a spring (85), and the screen frame (81) is slidably arranged on the inner side surface of the side plate (2); The auxiliary roller (83) is clamped in a groove provided on the bottom surface of the screen frame (81), and both ends of the auxiliary roller (83) are fixedly mounted on the surface of the side plate (2); An auxiliary plate (84), the bottom surface of the auxiliary plate (84) is fixedly installed with the top surface of the right end of the screen frame (81), and the top end of the auxiliary plate (84) is provided with a cylindrical protrusion, and the cylindrical protrusion at the top end of the auxiliary plate (84) is provided in contact with the rounded corner at one end of the blanking plate (74).

8. A mining screening device according to claim 7, characterized in that: The left side of the screen frame (81) is fixedly connected to the top surface of the left end of the mounting frame (1) via a rubber plate (82); the front and rear ends of the rubber plate (82) are slidably arranged on the inner side surface of the side plate (2); and a discharge plate (4) fixedly mounted on the bracket (3) is arranged below the screen frame (81).

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