High-precision concentrate screening device

Abstract

The utility model discloses a high-precision concentrate screening device which comprises a bottom plate, rollers and a conveying belt are arranged on the bottom plate, a discharging hopper is arranged on the top of the conveying belt, a material bottom plate is fixedly connected to the bottom end of the discharging hopper, and a sliding bottom plate is slidably connected to the position, located on the bottom face of the material bottom plate, of the bottom end of the discharging hopper. The lower portion of the outer side face of the discharging hopper is fixedly connected with an air cylinder, the output end of the air cylinder is fixedly connected with a connecting block, the sliding bottom plate is fixedly connected with the connecting block through a pull rod, and discharging openings are formed in the material bottom plate and the sliding bottom plate. The sliding bottom plate is in sliding connection with the bottom face of the material bottom plate, the discharging speed is controlled by controlling the size of a discharging opening where the material bottom plate and the sliding bottom plate are overlapped, the material screening precision of the device is improved by means of synchronization of rotation of the inclined rotating plate and movement of the sliding bottom plate, the structure is exquisite and practical, the automation degree is high, and the practicability is high. And popularization and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of concentrate screening, in particular to a high-precision concentrate screening device. Background Art

[0002] Concentrate screening is used to remove iron blocks from ore materials to achieve concentrate screening.

[0003] At present, the concentrate screening is often carried out by using a conveyor belt composed of magnetic rollers, and the ore material is poured onto the conveyor belt with a hopper, so that the magnetic rollers can attract the iron blocks to separate the concentrate from impurities such as iron blocks.

[0004] However, in the actual processing process, in order to match the overall rate of concentrate screening, this is because the quality of the materials to be screened is different. When the quality is poor, the screening speed needs to be reduced, and when the quality is good, the screening speed can be increased. That is, the material discharge will decrease or increase with demand. The current method is mostly to manually control the amount of material poured into the hopper, which will increase the labor cost required for the entire screening process. At the same time, when the material discharge speed decreases, the original baffle that distinguishes the concentrate from the iron block will not conform to the actual situation. The concentrate will often be introduced into the iron block. To adjust the angle of the baffle, manual adjustment is required. The whole process is cumbersome, which affects the screening efficiency. For this reason, a high-precision concentrate screening device is proposed. Utility Model Content

[0005] The utility model aims to provide a high-precision concentrate screening device to solve the problem of low screening efficiency caused by manual adjustment when the material feeding speed needs to be controlled according to demand as mentioned in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-precision concentrate screening device, comprising a base plate, on which rollers and a conveyor belt are arranged, a lower hopper is arranged on the top of the conveyor belt, the rollers include magnetic rollers and non-magnetic rollers, which are used to drive the conveyor belt and screen the ore materials, the bottom end of the lower hopper is fixedly connected to the material base plate, the bottom end of the lower hopper is located on the bottom surface of the material base plate and is slidably connected to the sliding base plate, the lower part of the outer side surface of the lower hopper is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a connecting block, the sliding base plate is fixedly connected to the connecting block by a pull rod, and a discharge port is provided on both the material base plate and the sliding base plate.

[0007] Preferably: both sides of the lower hopper are fixedly connected to the bottom plate via columns, the lower part of the columns is located at the lower part of the roller and is fixedly connected to a fixed shaft, the fixed shaft is rotatably connected to a material distribution structure, the material distribution structure includes a rotating drum, an inclined plate and a side baffle, the connecting block is fixedly connected to a cross bar, and both sides of the inclined plate at one end away from the fixed shaft are connected to the cross bar via connecting rods.

[0008] Preferably: both sides of the bottom of the lower hopper are fixedly connected with a bottom side sliding cavity, and the sliding bottom plate is slidably connected in the bottom side sliding cavity.

[0009] Preferably, the connecting rod is rotatably connected to the inclined plate, and the cross bar is rotatably connected to the connecting rod via a connecting rod shaft.

[0010] Preferably, the movement direction of the output end of the cylinder is the same as the sliding direction of the sliding bottom plate in the bottom side sliding cavity.

[0011] Preferably, the rotating drum is sleeved on a fixed shaft and rotatably connected thereto, and the side baffles are arranged on both sides of the top surface of the inclined rotating plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Through the setting and cooperation of the cylinder, the material bottom plate and the sliding bottom plate, the sliding bottom plate is used to slide and connect with the bottom surface of the material bottom plate, so that relative displacement occurs between the material bottom plate and the sliding bottom plate, and the size of the overlapping material discharge opening of the material bottom plate and the sliding bottom plate is controlled to realize the control of the material discharge speed, which meets the overall rate of the screening process. The structure is simple and efficient, with a high degree of automation, and has good application prospects.

[0014] 2. The setting of the material separation structure utilizes the synchronous rotation of the inclined plate and the movement of the sliding bottom plate, successfully realizing the reduction of the corresponding amount of waste ore due to the reduction of the material to be screened, thereby avoiding the phenomenon that the original position of the inclined plate will lead the material that originally belongs to the concentrate into the iron block, which greatly improves the accuracy of material screening of this device. The structure is exquisite and practical, with a high degree of automation, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the material feeding linkage mechanism in the utility model;

[0016] Figure 2 This is a schematic diagram of the connection between the lower hopper and the cylinder in the utility model;

[0017] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 4 for Figure 1A magnified schematic diagram of center A.

[0019] In the figure: 1. conveyor belt; 101. roller; 2. lower hopper; 201. cylinder; 202. pull rod; 203. connecting block; 204. cross bar; 205. bottom sliding cavity; 206. material bottom plate; 207. sliding bottom plate; 3. inclined rotating plate; 301. side baffle; 302. rotating drum; 303. fixed shaft; 4. connecting rod; 401. connecting rod shaft. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] Reference Figure 1-4 As shown, the utility model provides a technical solution for a high-precision concentrate screening device:

[0022] A high-precision concentrate screening device comprises a base plate, on which rollers 101 and a conveyor belt 1 are arranged, a lower hopper 2 is arranged on the top of the conveyor belt 1, the rollers 101 include magnetic rollers and non-magnetic rollers, which are used to drive the conveyor belt 1 and screen the ore materials, the bottom end of the lower hopper 2 is fixedly connected with a material base plate 206, the bottom end of the lower hopper 2 is located at the bottom surface of the material base plate 206 and is slidably connected with a sliding base plate 207, a cylinder 201 is fixedly connected to the lower part of the outer side surface of the lower hopper 2, the output end of the cylinder 201 is fixedly connected with a connecting block 203, and the sliding base plate 207 is fixedly connected to the connecting block 203 via a pull rod 202, wherein it should be supplemented that both the material base plate 206 and the sliding base plate 207 are provided with a discharge port.

[0023] Through the arrangement and cooperation of the cylinder 201, the material bottom plate 206 and the sliding bottom plate 207, the sliding bottom plate 207 is utilized to be slidably connected to the bottom surface of the material bottom plate 206, thereby causing relative displacement between the material bottom plate 206 and the sliding bottom plate 207, controlling the size of the overlapping material discharge opening of the material bottom plate 206 and the sliding bottom plate 207, and realizing the control of the material discharge speed, thus meeting the overall rate of the screening process, and the structural arrangement is simple, efficient, and highly automated, and has good application prospects.

[0024] Among them, it should be supplemented that the two sides of the lower hopper 2 are fixedly connected to the bottom plate through columns, the lower part of the columns is located at the lower part of the roller 101 and is fixedly connected to a fixed shaft 303, the fixed shaft 303 is rotatably connected to a material distribution structure, the material distribution structure includes a rotating drum 302, an inclined turning plate 3 and a side baffle 301, the connecting block 203 is fixedly connected to a cross bar 204, and the two sides of the end of the inclined turning plate 3 away from the fixed shaft 303 are connected to the cross bar 204 through a connecting rod 4.

[0025] The setting of the material separation structure utilizes the synchronous rotation of the inclined plate 3 and the movement of the sliding bottom plate 207, successfully achieving the reduction of the corresponding amount of waste ore due to the reduction of the material to be screened, thereby avoiding the phenomenon that the original position of the inclined plate 3 will lead the material that originally belongs to the concentrate into the iron block, thereby greatly improving the accuracy of material screening of the device. The structure is exquisite and practical, with a high degree of automation, and is suitable for popularization and use.

[0026] Among them, it should be additionally explained that both sides of the bottom of the lower hopper 2 are fixedly connected with a bottom side sliding cavity 205, the sliding bottom plate 207 is slidingly connected in the bottom side sliding cavity 205, and the movement direction of the output end of the cylinder 201 is the same as the sliding direction of the sliding bottom plate 207 in the bottom side sliding cavity 205.

[0027] Among them, it needs to be supplemented that the connecting rod 4 is rotatably connected to the inclined rotating plate 3, the cross bar 204 is rotatably connected to the connecting rod 4 through the connecting rod shaft 401, the rotating drum 302 is sleeved on the fixed shaft 303 and rotatably connected thereto, and the side baffles 301 are arranged on both sides of the top surface of the inclined rotating plate 3. The setting of the side baffles 301 allows the screened waste ore to slide smoothly downward along the surface of the inclined rotating plate 3. When using this device, the material receiving frame commonly used in the prior art is placed at the bottom end of the inclined rotating plate 3, so that the screened waste ore can be quickly collected.

[0028] Working principle: When using this device, when it is necessary to adjust the unloading speed of the material to be screened, it is only necessary to control the start and stop of the cylinder 201 so that the sliding bottom plate 207 slides on the bottom side sliding cavity 205, thereby causing a relative displacement between the material bottom plate 206 and the sliding bottom plate 207, and controlling the size of the overlapping unloading opening of the material bottom plate 206 and the sliding bottom plate 207 to achieve control of the unloading speed.

[0029] At the same time, refer to Figure 1As shown, when the feeding speed of the material to be screened is reduced, that is, the cylinder 201 is started, the output end of the cylinder 201 extends outward, so that the sliding bottom plate 207 slides outward, and the overlapping feeding opening between the material bottom plate 206 and the sliding bottom plate 207 becomes smaller. At the same time, the outward movement of the connecting block 203 causes the cross bar 204 to move outward, and under the transmission of the connecting rod 4, the inclined turning plate 3 rotates clockwise. At this time, it should be supplemented that the two ends of the connecting rod 4 rotate on the cross bar 204 and the inclined turning plate 3 respectively. The clockwise rotation of the inclined turning plate 3 reduces the corresponding number of iron blocks due to the reduction of the material to be screened, thereby avoiding the phenomenon that the original position of the inclined turning plate 3 will introduce the material belonging to the concentrate into the iron blocks, which greatly improves the accuracy of screening materials of the device. The structure is exquisite and practical, with a high degree of automation, and is suitable for popularization and use.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision concentrate screening device, comprising a bottom plate, on which a roller (101) and a conveyor belt (1) are arranged, a lower hopper (2) is arranged on the top of the conveyor belt (1), and the roller (101) includes a magnetic roller and a non-magnetic roller, which is used to drive the conveyor belt (1) and screen the ore material, characterized in that: The bottom end of the lower hopper (2) is fixedly connected to a material bottom plate (206); the bottom end of the lower hopper (2) is located on the bottom surface of the material bottom plate (206) and is slidably connected to a sliding bottom plate (207); the lower part of the outer side surface of the lower hopper (2) is fixedly connected to a cylinder (201); the output end of the cylinder (201) is fixedly connected to a connecting block (203); the sliding bottom plate (207) is fixedly connected to the connecting block (203) via a pull rod (202); and both the material bottom plate (206) and the sliding bottom plate (207) are provided with material discharge ports.

2. A high-precision concentrate screening device according to claim 1, characterized in that: The two sides of the lower hopper (2) are fixedly connected to the bottom plate via columns; the lower part of the column is located at the lower part of the roller (101) and is fixedly connected to a fixed shaft (303); the fixed shaft (303) is rotatably connected to a material distribution structure, the material distribution structure comprises a rotating drum (302), an inclined rotating plate (3) and a side baffle (301); the connecting block (203) is fixedly connected to a cross bar (204); the two sides of the end of the inclined rotating plate (3) away from the fixed shaft (303) are connected to the cross bar (204) via connecting rods (4).

3. A high-precision concentrate screening device according to claim 1, characterized in that: Both sides of the bottom of the lower hopper (2) are fixedly connected with a bottom side sliding cavity (205), and the sliding bottom plate (207) is slidably connected in the bottom side sliding cavity (205).

4. A high-precision concentrate screening device according to claim 2, characterized in that: The connecting rod (4) is rotatably connected to the inclined plate (3), and the cross bar (204) is rotatably connected to the connecting rod (4) via a connecting rod shaft (401).

5. A high-precision concentrate screening device according to claim 3, characterized in that: The movement direction of the output end of the cylinder (201) is the same as the sliding direction of the sliding bottom plate (207) in the bottom side sliding cavity (205).

6. A high-precision concentrate screening device according to claim 2, characterized in that: The rotating drum (302) is sleeved on the fixed shaft (303) and is rotatably connected thereto, and the side baffles (301) are arranged on both sides of the top surface of the inclined rotating plate (3).

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