Impurity removing device for discharging end of vibrating screen of coal preparation plant

Abstract

The utility model discloses a coal preparation plant vibrating screen discharge end impurity removal device which comprises a uniform discharge device, a waste chip treatment device arranged below the uniform discharge device, a conveying device arranged below the waste chip treatment device, a metal treatment device arranged above the conveying device, and an impurity removal device arranged above the metal treatment device. Metal recycling boxes are symmetrically arranged on the left side and the right side of the conveying device. By means of the uniform discharging device and the waste chip treatment device, coal is discharged uniformly and falls down, waste chips in the coal falling process are blown to a ventilation opening through an air blower, the waste chips are blocked by an air blocking shell and then fall into a waste chip collecting box, and the screening efficiency is high; the conveying device, the metal treatment device and the metal recycling box are arranged, the conveying device conveys coal, the metal treatment device continuously and alternately adsorbs and recycles metal in the coal, and the screening and recycling efficiency of metal impurities is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of impurity removal devices, in particular to an impurity removal device at the discharge end of a vibrating screen in a coal preparation plant. Background Art

[0002] The impurity removal device at the discharge end of the vibrating screen in a coal preparation plant is an indispensable part of the modern coal processing process. It is mainly used to remove impurities in the coal, such as metal fragments, wood chips and other non-coal substances, to improve the quality of the coal and reduce the loss to downstream equipment.

[0003] When the currently available impurity removal device screens lighter impurities such as wood chips in coal, the impurities are suppressed in the coal due to coal stacking and cannot be screened out, affecting the screening efficiency; and the screening efficiency of metal impurities in coal is low, affecting metal recycling. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, one of the purposes of the utility model is to provide a device for removing impurities at the discharge end of a vibrating screen in a coal preparation plant. By means of a uniform discharge device and a waste processing device, the coal is discharged and falls evenly. A blower blows the waste in the falling coal toward the vent, where the waste is blocked by a wind shield and then falls into a waste collection box, with high screening efficiency. By means of a conveying device, a metal processing device and a metal recovery box, the conveying device conveys the coal, and the metal processing device performs uninterrupted alternating adsorption and recovery of the metal in the coal, thereby improving the screening and recovery efficiency of metal impurities.

[0005] One of the purposes of the utility model is achieved by the following technical solution: a coal preparation plant vibrating screen discharge end impurity removal device, comprising: a uniform discharge device, a waste chip processing device is provided below the uniform discharge device, a conveying device is provided below the waste chip processing device, a metal processing device is provided above the conveying device, and metal recovery boxes are symmetrically placed on the left and right of the conveying device;

[0006] The waste processing device comprises a connection frame, a hair dryer is fixedly connected to the front wall of the connection frame, a vertical plate is fixedly connected to the rear wall of the connection frame, ventilation holes are formed through the rear walls of the connection frame and the vertical plate, the position of the ventilation holes corresponds to the position of the hair dryer, a windshield shell is fixedly connected to the rear wall of the vertical plate, and a waste collection box is provided below the windshield shell;

[0007] The metal processing device includes a bracket, and the left and right sides of the top of the bracket are fixedly connected with side plates, and the side wall of the left side plate is fixedly connected with a motor three, and the output end of the motor three passes through the inner wall of the side plate and is fixedly connected with a screw, and the top of the bracket is provided with a limit hole, and the outer wall of the screw passes through a displacement block threadedly connected, and the side wall of the displacement block is slidably connected with the inner wall of the limit hole, and the bottom end of the displacement block is fixedly connected with a mounting plate one, and the right side of the mounting plate one is fixedly connected with a mounting plate two, and the bottom ends of the mounting plate one and the mounting plate two are both installed with electromagnetic suction cups. Through the uniform discharging device and the waste processing device, the coal is uniformly discharged and falls, and the hair dryer blows the waste in the falling coal to the vent, and the waste is blocked by the windshield shell and then falls into the waste collection box, and the screening efficiency is high; through the conveying device, metal processing device, and metal recovery box, the conveying device conveys the coal, and the metal processing device performs uninterrupted alternating adsorption and recovery of the metal in the coal, so as to improve the screening and recovery efficiency of metal impurities.

[0008] According to the impurity removal device at the discharge end of a vibrating screen in a coal preparation plant, the uniform discharge device includes a feed hopper, a side wall of the feed hopper is fixedly connected to a motor 1, an output end of the motor 1 passes through the inner wall of the feed hopper and is fixedly connected to a rotating rod, and an outer wall of the rotating rod is fixedly connected to a plurality of stirring rods.

[0009] According to the impurity removal device at the discharge end of the vibrating screen in a coal preparation plant, the conveying device includes a baffle frame, two rollers are rotatably connected between the inner walls on both sides of the baffle frame, a conveyor belt is transmission-connected between the two rollers, a second motor is fixedly connected to the left side of the baffle frame, and one end of the output end roller of the second motor is fixedly connected.

[0010] A device for removing impurities at the discharge end of a vibrating screen in a coal preparation plant is provided, wherein the bottom end of the bracket is fixedly connected to the top end of the baffle frame.

[0011] According to the impurity removal device at the discharge end of the vibrating screen of a coal preparation plant, the right side of the displacement block and the right side of the mounting plate 1 are located on the same plane.

[0012] According to the impurity removal device at the discharge end of the vibrating screen in a coal preparation plant, the front side of the vertical plate is fixedly connected to the rear side of the baffle frame.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a three-dimensional diagram of a device for removing impurities at the discharge end of a vibrating screen in a coal preparation plant according to the utility model;

[0016] Figure 2 This is a structural diagram of a uniform discharging device of a de-impurity device at the discharging end of a vibrating screen in a coal preparation plant according to the utility model;

[0017] Figure 3 This is a three-dimensional diagram of a waste chip treatment device of a coal preparation plant vibrating screen discharge end impurity removal device according to the utility model;

[0018] Figure 4 This is a structural diagram of a conveying device of a de-impurity device at the discharge end of a vibrating screen in a coal preparation plant according to the utility model;

[0019] Figure 5 This is a structural diagram of a metal processing device of a dust removal device at the discharge end of a vibrating screen in a coal preparation plant according to the utility model.

[0020] Legend:

[0021] 1. Uniform discharging device; 2. Waste chip processing device; 3. Conveying device; 4. Metal processing device; 5. Metal recovery box; 101. Feed hopper; 102. Motor 1; 103. Rotating rod; 104. Stirring stick; 201. Connecting frame; 202. Blower; 203. Vertical plate; 204. Ventilation port; 205. Wind shield; 206. Waste chip collection box; 301. Block frame; 302. Roller; 303. Conveyor belt; 304. Motor 2; 401. Bracket; 402. Side plate; 403. Motor 3; 404. Screw; 405. Displacement block; 406. Mounting plate 1; 407. Mounting plate 2; 408. Electromagnetic suction cup; 4011. Limiting hole. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-5 The utility model embodiment is a coal preparation plant vibration screen discharge end impurity removal device, which comprises: a uniform discharge device 1, a waste chip processing device 2 is provided below the uniform discharge device 1, a conveying device 3 is provided below the waste chip processing device 2, a metal processing device 4 is provided above the conveying device 3, and a metal recovery box 5 is symmetrically placed on the left and right of the conveying device 3;

[0024] The uniform discharging device 1 comprises a feed hopper 101, a motor 102 is fixedly connected to the side wall of the feed hopper 101, an output end of the motor 102 penetrates the inner wall of the feed hopper 101 and is fixedly connected to a rotating rod 103, and a plurality of stirring rods 104 are fixedly connected to the outer wall of the rotating rod 103;

[0025] The waste disposal device 2 comprises a connection frame 201, a hair dryer 202 is fixedly connected to the front wall of the connection frame 201, a vertical plate 203 is fixedly connected to the rear wall of the connection frame 201, a vent 204 is formed through the rear walls of the connection frame 201 and the vertical plate 203, and the position of the vent 204 corresponds to the position of the hair dryer 202, a windshield shell 205 is fixedly connected to the rear wall of the vertical plate 203, and a waste collection box 206 is provided below the windshield shell 205;

[0026] The conveying device 3 includes a baffle frame 301, the front side of the vertical plate 203 is fixedly connected to the rear side of the baffle frame 301, two rollers 302 are rotatably connected between the inner walls of both sides of the baffle frame 301, a conveyor belt 303 is transmission-connected between the two rollers 302, a motor 2 304 is fixedly connected to the left side of the baffle frame 301, and one end of the roller 302 is fixedly connected to the output end of the motor 2 304;

[0027] The metal processing device 4 includes a bracket 401, the bottom end of the bracket 401 is fixedly connected to the top of the baffle frame 301, the left and right sides of the top of the bracket 401 are fixedly connected with side panels 402, the side wall of the left side panel 402 is fixedly connected with a motor three 403, the output end of the motor three 403 passes through the inner wall of the side panel 402 and is fixedly connected with a screw 404, a limiting hole 4011 is provided at the top of the bracket 401, the outer wall of the screw 404 passes through a displacement block 405 threadedly connected, the side wall of the displacement block 405 is slidably connected to the inner wall of the limiting hole 4011, the bottom end of the displacement block 405 is fixedly connected with a mounting plate one 406, the right side of the displacement block 405 and the right side of the mounting plate one 406 are located on the same plane, the right side of the mounting plate one 406 is fixedly connected with a mounting plate two 407, and the bottom ends of the mounting plate one 406 and the mounting plate two 407 are both installed with electromagnetic suction cups 408. Through the uniform discharging device 1 and the waste processing device 2, after the vibrating screen is discharged, the coal falls into the feed hopper 101, the motor 102 is started to drive the rotating rod 103 to rotate and drive the stirring rod 104 to rotate, so that the coal falls evenly from the discharging port, and at the same time, the blower 202 is started to blow the waste in the falling coal to the ventilation port 204, the waste is blocked by the wind shield 205, and then falls into the waste collection box 206, and the screening efficiency is high; through the conveying device 3, the metal processing device 4, and the metal recovery box 5, when the coal falls onto the conveyor belt 303, the motor 2 304 is started to drive the roller 302 to rotate and drive the conveyor belt 303 to roll , the coal is transported, and at the same time, the electromagnetic suction cup 408 on the mounting plate 406 is started to absorb the metal in the coal. When it is fully absorbed, the motor 3 403 is started to drive the screw 404 to rotate, and the displacement block 405 is driven to move in conjunction with the limit hole 4011, and the mounting plate 406 is moved to the top of the metal recovery box 5 on the left, and the electromagnetic suction cup 408 on the mounting plate 406 is powered off. The metal falls into the metal recovery box 5 after demagnetization, and at the same time, the mounting plate 2 407 is moved to the top of the conveyor belt 303 and the electromagnetic suction cup 408 is turned on to continue to absorb the metal. The two components alternately absorb without interruption, thereby improving the screening and recovery efficiency of metal impurities.

[0028] Working principle: When in use, after the vibrating screen discharges the coal, it falls into the feed hopper 101. The motor 102 is started to drive the rotating rod 103 to rotate and drive the stirring rod 104 to rotate, so that the coal falls evenly from the discharge port. At the same time, the blower 202 is started to blow the waste chips in the falling coal to the vent 204. The waste chips are blocked by the wind shield 205 and then fall into the waste chip collection box 206. When the coal after preliminary screening falls on the conveyor belt 303, the motor 2 304 is started to drive the roller 302 to rotate and drive the conveyor belt 303 to roll to transport the coal. At the same time, the mounting plate 40 is started. The electromagnetic suction cup 408 on 6 absorbs the metal in the coal. When it is fully absorbed, the motor three 403 is started to drive the screw 404 to rotate, and the displacement block 405 is driven to move in conjunction with the limit hole 4011, and the mounting plate 1 406 is moved to the top of the metal recovery box 5 on the left, and the electromagnetic suction cup 408 on the mounting plate 1 406 is powered off. The metal falls into the metal recovery box 5 after demagnetization, and at the same time, the mounting plate 2 407 moves to the top of the conveyor belt 303 and turns on the electromagnetic suction cup 408 to continue to absorb the metal. The two components alternately absorb without interruption, thereby improving the screening and recovery efficiency of metal impurities.

[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A device for removing impurities at the discharge end of a vibrating screen in a coal preparation plant, characterized in that: include: A uniform discharging device (1), wherein a waste chip processing device (2) is provided below the uniform discharging device (1), a conveying device (3) is provided below the waste chip processing device (2), a metal processing device (4) is provided above the conveying device (3), and a metal recovery box (5) is symmetrically placed on the left and right of the conveying device (3); The waste scrap processing device (2) comprises a connecting frame (201), a hair dryer (202) is fixedly connected to the front wall of the connecting frame (201), a vertical plate (203) is fixedly connected to the rear wall of the connecting frame (201), a vent (204) is provided through the rear walls of the connecting frame (201) and the vertical plate (203), the position of the vent (204) corresponds to the position of the hair dryer (202), a windshield shell (205) is fixedly connected to the rear wall of the vertical plate (203), and a waste scrap collection box (206) is provided below the windshield shell (205); The metal processing device (4) comprises a bracket (401), the top and left sides of the bracket (401) are fixedly connected to side plates (402), the side wall of the left side plate (402) is fixedly connected to a motor three (403), the output end of the motor three (403) passes through the inner wall of the side plate (402) and is fixedly connected to a screw rod (404), the top of the bracket (401) is provided with a limiting hole (4011), the outer wall of the screw rod (404) passes through a displacement block (405) threadedly connected, the side wall of the displacement block (405) is slidably connected to the inner wall of the limiting hole (4011), the bottom end of the displacement block (405) is fixedly connected to a mounting plate one (406), the right side of the mounting plate one (406) is fixedly connected to a mounting plate two (407), and the bottom ends of the mounting plate one (406) and the mounting plate two (407) are both installed with electromagnetic suction cups (408).

2. The impurity removal device at the discharge end of the vibrating screen in a coal preparation plant according to claim 1, characterized in that: The uniform discharging device (1) comprises a feed hopper (101), a side wall of the feed hopper (101) being fixedly connected to a motor 1 (102), an output end of the motor 1 (102) penetrating through the inner wall of the feed hopper (101) and being fixedly connected to a rotating rod (103), and an outer wall of the rotating rod (103) being fixedly connected to a plurality of stirring rods (104).

3. The impurity removal device at the discharge end of the vibrating screen in a coal preparation plant according to claim 1, characterized in that: The conveying device (3) comprises a baffle frame (301), two rollers (302) are rotatably connected between the inner walls on both sides of the baffle frame (301), a conveyor belt (303) is transmission-connected between the two rollers (302), a second motor (304) is fixedly connected to the left side of the baffle frame (301), and an output end of the second motor (304) is fixedly connected to one end of the roller (302).

4. The impurity removal device at the discharge end of the vibrating screen in a coal preparation plant according to claim 1, characterized in that: The bottom end of the bracket (401) is fixedly connected to the top end of the baffle frame (301).

5. The impurity removal device at the discharge end of the vibrating screen in a coal preparation plant according to claim 1, characterized in that: The right side of the displacement block (405) and the right side of the mounting plate 1 (406) are located on the same plane.

6. The impurity removal device at the discharge end of the vibrating screen in a coal preparation plant according to claim 1, characterized in that: The front side of the vertical plate (203) is fixedly connected to the rear side of the baffle frame (301).

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