CN205253532U - Novel sieve is arranged futilely to tailing - Google Patents

Abstract

The utility model provides a new type of tailings dry discharge screen, which solves the problems of high cost and energy consumption, high noise, high accident rate, complex structure and inconvenient maintenance existing in the existing tailings dry discharge screen. Its technical solution is , including a screen box, a supporting device, a motor and a vibrator. The screen box includes two relatively fixed side plates, and a screen plate is installed between the bottom and the right end of the two side plates. An angle A is formed, and the sieve plate between the right ends of the two side plates forms an angle C with the horizontal plane. The vibrator is symmetrically installed on the upper part of the two side plates, and a transmission shaft is connected between the opposite vibrators on the two side plates. The two ends of the transmission shaft are connected to the vibrator through a universal coupling, wherein the power input end of the vibrator is connected to the motor through a tire coupling, and the motor is set apart from the screen box and fixed to the ground , The utility model has the advantages of simple structure, obvious screening effect, low failure rate, convenient maintenance in the later stage, and obvious reduction in energy consumption.

Description

New tailings dry discharge screen

technical field

The utility model relates to the field of screening and concentrating liquid, in particular to a novel tailings dry discharge screen.

Background technique

Tailings dry discharge is a new tailings disposal technology that has gradually emerged in China in recent years. It refers to the multi-stage concentration of the tailings slurry output through the beneficiation process, and then processed by high-efficiency dehydration equipment such as dehydration vibrating screens to form a small water content. , easy to precipitate and solidify, and use the slag stored on the site. The slag can be transferred to a fixed location for dry storage. Green environment-friendly mine system.

There are many tailings dry discharge processes. In order to solve the problem of tailings dehydration, thickeners or cyclones + filters or filter press systems were commonly used in the past, but this process has a large area, large investment, high power consumption, and high cost of use. question.

The tailings slurry output by the beneficiation process is concentrated and then processed by dehydration vibrating screen equipment. The water content of the products on the screen is usually below 20%, and can be directly transferred to a fixed location for dry storage. This process has the advantages of small investment, high efficiency, small footprint, and low operating costs, and is currently the most economical and practical method on the market. If it is used in conjunction with a filter or a filter press, the area of the filter press and filter can be greatly reduced. Due to the remarkable advantages of this process, it will soon be popularized and applied in China. In the above tailings dry discharge process, the tailings dry discharge screen plays a very critical role, but since this process is a new process developed, what type of vibrating screen can be used as the tailings dry discharge screen? It is not clear to achieve the ideal process effect. Therefore, in practical applications, there are many types of vibrating screens for tailings dry discharge, and the parameters are not the same. Therefore, the process effects are also not the same. It has caused the problems of high cost and energy consumption, high noise, high accident rate, complex structure and inconvenient maintenance in the existing dry tailings screen.

Contents of the invention

In view of the above situation, in order to overcome the defects of the prior art, the purpose of this utility model is to provide a new type of tailings dry discharge screen. Higher rate and your complex structure and inconvenient maintenance.

Its technical solution is to include a screen box, a supporting device, a motor and a vibrator. The screen box includes two relatively fixed side plates, a screen plate is installed between the bottom and the right end of the two side plates, and the bottom of the two side plates is screened. The plate forms an angle A with the horizontal plane, and the sieve plate between the right ends of the two side plates forms an angle C with the horizontal plane. The vibrator is symmetrically installed on the upper part of the two side plates, and the opposite vibrators on the two side plates are connected with The transmission shaft, the two ends of the transmission shaft are connected to the vibrator through a universal coupling, wherein the power input end of the vibrator is connected to the motor through a tire coupling, and the motor is set apart from the screen box and fixed to the ground.

A plurality of evenly arranged lower beams are fixedly connected between the bottoms of the two side plates, and a plurality of vertical beams perpendicular to the lower beams are fixed on the lower beams, and the sieve plate is composed of a plurality of units Spliced together, the sieve plate is made of polyurethane material, the sieve plate is fixedly installed on the longitudinal beam, the angle A is -3°, the angle C is 45°, An upper beam is fixedly connected between the upper parts of the two side plates.

The two side plates are fixedly connected with the upper and lower beams through torsional shear type high-strength bolts.

The supporting device includes a bearing seat fixedly connected to the outer walls of the two side plates, a horizontal plate is provided at the lower end of the bearing seat, a mounting seat is provided under the flat plate, and a pressure spring is provided between the mounting seat and the horizontal plate.

The motor is fixed to the ground through the motor frame, and the motor frame is separated from the side plate.

There are two pairs of vibrators in total, the line connecting the rotation centers of the exciters on the same side forms an angle B with the horizontal plane, and the angle B is 45°, and the vibration direction of the exciters is obliquely upward and vertical The straight line forms an angle of 45°, and a reinforcing plate is provided between the vibrator and the two side plates.

The tire coupling includes two connecting flanges that are opposite and spaced apart. A connecting piece is connected between the connecting flanges. The connecting piece is a rectangular rubber piece. The two ends of the connecting piece are They are respectively fixedly connected to the outer surfaces of the connecting flanges, and the connecting pieces are distributed in a ring around the center of the connecting flanges.

The utility model has the advantages of simple structure, obvious screening effect, low failure rate, convenient maintenance in the later stage, and obvious reduction of energy consumption.

Description of drawings

Fig. 1 is a working principle diagram of the utility model.

Fig. 2 is the front view of the utility model.

Fig. 3 is a left side view of Fig. 2 .

Fig. 4 is the front view of the tire type shaft coupling of the utility model.

FIG. 5 is a schematic cross-sectional view of A-A in FIG. 4 .

detailed description

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

Embodiment 1: As shown in Figures 1 to 5, the new tailings dry discharge screen includes a screen box, a support device, a motor 1 and a vibrator 2, and the screen box includes two relatively fixed side plates 3, A plurality of evenly arranged lower beams 7 are connected between the bottom and the right end of the two side plates 3 by high-strength torsional-shear bolts. The high-strength torsional-shear bolts can prevent the weld seam from cracking during vibration and affect the service life. A plurality of spaced longitudinal beams 8 vertical to the lower beam are fixed on the lower beam, and a sieve plate 4 is installed between the bottom and the right end of the two side plates 3, and the sieve plate 4 is spliced by a plurality of units. The sieve plate 4 is made of polyurethane material, and the sieve plate 4 is fixedly installed on the longitudinal beam 8, and the longitudinal beam 8 can be an angle steel, and one plane of the angle steel faces upward to form the sieve plate 4 Install the rail seat, the sieve plate 4 at the bottom of the two side plates 3 forms an angle A with the horizontal plane, and the sieve plate 4 between the right ends of the two side plates 3 forms an angle C with the horizontal plane. The above-mentioned angle A is -3°, and the above-mentioned angle C is 45°. The upper part of the two side plates 3 is connected with the upper beam 9 through torsional shear type high-strength bolts. There are two pairs of the above-mentioned vibrator 2, each The line connecting the rotation center of the vibrator 2 on the same side forms an angle B with the horizontal plane, and the angle B is 45°. The vibration direction of the vibrator 2 is obliquely upward and forms an angle of 45° with the vertical line. The amplitude of the vibrator 2 is 4-6mm. A reinforcing plate 14 is provided between the vibrator 2 and the two side plates 3. The reinforcing plate 14 can strengthen the installation between the vibrator 2 and the two side plates 3, preventing the vibrator 2 from Directly acting on the side plate 3 to cause damage, the vibrator 2 is installed symmetrically, and a transmission shaft 5 is connected between the opposite vibrators 2 on the two side plates 3, and the two ends of the transmission shaft 5 are connected by universal joints. The shaft device 6 is in transmission connection with the vibrator 2, and the universal coupling 6 allows it to have a large radial movement, wherein the power input end of the vibrator 2 is connected to the motor 1 through an elastic coupling, and the tire type The coupling includes two connecting flanges 15 that are opposite and spaced apart. A connecting piece 16 is connected between the connecting flanges 15. The connecting piece 16 is a rectangular rubber piece. The two ends of the connecting piece 16 are They are respectively fixedly connected to the outer surfaces of the connecting flanges 15. The connecting pieces 16 are distributed in a ring around the center of the connecting flange 15. The two connecting flanges 15 are connected elastically through the connecting pieces 16 to prevent the vibration transmission of the exciter 2. To the motor 1, the motor 1 is protected, the motor 1 is fixed to the ground by the motor 1 frame, the motor 1 speed is 980r/min, and the motor 1 frame is separated from the side plate 3. The supporting device includes a load-bearing seat 10 fixedly connected to the outer walls of the two side plates 3, the lower end of the load-bearing seat 10 is provided with a horizontal plate 11, and the bottom of the flat plate 11 is provided with a mounting seat 12, and the mounting seat 12 is connected to the horizontal plate. A pressure spring 13 is arranged between the plates 11, and the mounting seat is fixed to the ground by anchor bolts during use.

When the utility model is actually used, as shown in the figure, the feed tailings are evenly fed into the feed port of the screen box by the feed box, and about 1/3 is removed at the 4 places on the right end sieve plate at 45 degrees to the horizontal. After the left and right water enters the junction of the flat sieve plate 4 and the inclined sieve plate 4, the material accumulates, the particles settle by gravity, and a thin filter layer begins to form, and the filter layer prevents the rest of the particles from passing through the sieve, so that the filter layer gradually Thickened, water that cannot pass through the sieve forms a pool on the upper part of the filter layer. Because the filter layer is thin here, the water is gradually removed under strong movement. Due to the high-frequency and low-amplitude vibration state, the tail of the filter layer is formed. The ore vibrates more and more densely until the material forms a filter cake at the discharge port. Except for a part of the water in the tailings removed from the screen surface, the rest emerges on the surface of the material layer due to capillary action. Due to the negative inclination of the screen surface installed , the water will not overflow from the discharge port, and the surface water will flow to the combined pool. Therefore, in Figure 1, Zones I and Zone II are the main dehydration zones. Zone II is not only a dehydration zone, but also a filter layer formation zone. III The zone is the dehydration zone of the filter layer. After the material passes through zone III, it will gradually form a denser and cake-like material from looseness, and finally be discharged to the chute in front of the screen.

The utility model has the advantages of simple structure, obvious screening effect, low failure rate, convenient maintenance in the later stage, and obvious reduction of energy consumption.

Claims (7)

1. A new type of tailings dry discharge screen, including a screen box, a supporting device, a motor (1) and a vibrator (2). The screen box includes two relatively fixed side plates (3), two side plates (3 ) between the bottom and the right end is installed with a sieve plate (4), which is characterized in that the bottom sieve plate (4) of the two side plates (3) forms an angle A with the horizontal plane, and the sieve plate (4) between the right ends of the two side plates (3) ) and the horizontal plane at an angle C, the vibrator (2) is symmetrically installed on the upper part of the two side plates (3), and the drive shaft ( 5), the two ends of the transmission shaft (5) are connected to the vibrator (2) through a universal coupling (6), wherein the power input end of the vibrator (2) is connected through a tire coupling A motor (1), the motor (1) is set apart from the screen box and fixed to the ground. 2. The new tailings dry discharge screen according to claim 1, characterized in that, a plurality of evenly arranged lower beams (7) are fixedly connected between the bottoms of the two side plates (3), and the lower beams (7) (7) is fixed with a plurality of vertical beams (8) arranged at intervals perpendicular to the lower beam (7), the sieve plate (4) is spliced by multiple units, and the sieve plate (4) Made of polyurethane material, the sieve plate (4) is fixedly installed on the longitudinal beam (8), the angle A is -3°, the angle C is 45°, the two An upper beam (9) is fixedly connected between the upper parts of the side plates (3). 3. The new tailings dry discharge screen according to claim 1, characterized in that, the two side plates (3) are fixedly connected to the upper and lower beams by torsional shear type high-strength bolts. 4. The new tailings dry discharge screen according to claim 1, characterized in that, the support device includes a load-bearing seat (10) fixedly connected to the outer walls of the two side plates (3), and the load-bearing seat (10) ) is provided with a horizontal plate (11) at the lower end, a mounting seat (12) is provided below the horizontal plate (11), and a pressure spring (13) is provided between the mounting seat (12) and the horizontal plate (11). 5. The new tailings dry discharge screen according to claim 1, characterized in that, the motor (1) is fixed to the ground through the motor frame (17), and the motor frame (17) is connected to the side plate ( 3) separated from each other. 6. The new tailings dry discharge screen according to claim 1, characterized in that there are two pairs of vibrators (2) in total, and the line connecting the rotation centers of the exciters (2) on the same side is in the same direction as the horizontal plane. Angle B, the angle B is 45°, the vibration direction of the vibrator (2) is obliquely upward and forms an angle of 45° with the vertical line, the vibrator (2) and the two side plates (3 ) is provided with a reinforcing plate (14). 7. The new tailings dry discharge screen according to claim 1, characterized in that, the tire coupling includes two opposite and separated connecting flanges (15), and the connecting flanges ( 15) is connected with a connecting piece (16), the connecting piece (16) is a rectangular rubber piece, and the two ends of the connecting piece (16) are respectively fixedly connected with the outer surface of the connecting flange (15). The connecting piece (16) described above is distributed in a ring around the center of the connecting flange (15).