CN216728144U - Vibrating screen capable of cleaning blockage without disassembly - Google Patents

Abstract

The technical scheme relates to the field of mine production and sorting, in particular to a vibrating screen capable of cleaning blockages without disassembly, which is provided with a cleaning device, wherein the cleaning device and a screening device have the same shape and size; the lower channel and the screening device are the same in shape and size; the cleaning device and the lower channel are fixedly connected on the same plane; the inclination angles and directions of the screening device, the cleaning device and the lower channel are equal. Cleaning device includes cleaning device body and high-pressure squirt, and high-pressure squirt water spray direction is towards screening plant and perpendicular to screening plant place plane. When the sieve pores of the screening device are blocked, the blocking objects are cleaned out of the sieve pores by utilizing the impact force of the high-pressure water gun. The cleaning device and the undersize channel can be arranged in the box body of the vibrating screen and are independent and not influenced mutually.

Description

Vibrating screen capable of cleaning blockage without disassembly

Technical Field

The utility model relates to a mine production field of selecting separately especially relates to a shale shaker of sorting ore.

Background

The vibrating screen is also called as vibrating screen, and is one kind of filtering mechanical separating apparatus utilizing the reciprocating rotation type vibration produced by vibrator to excite vibration. The upper rotary heavy hammer of the vibrator makes the screen surface generate plane rotary vibration, the lower rotary heavy hammer makes the screen surface generate conical surface rotary vibration, and the combined effect of the two rotary heavy hammers makes the screen surface generate re-rotary vibration. The vibrating screen consists of a screen 7 and a vibrator. The mesh 7 has a mesh size, and generally, a mesh size of 50 mesh or less is a coarse mesh 7, and a mesh size of 80 mesh or more is a fine mesh 7. The vibrator is an eccentric wheel and is driven by the motor 3 and the vibrator 4 to rotate, so that the sieve frame vibrates.

After a large amount of ore crushed materials with different particle sizes and mixed thicknesses enter a feed inlet of the vibrating screen, only a part of particles are in contact with the screen, and due to the vibration of the screen box or the screen frame, a material layer on the screen is loosened, so that the gap where large particles originally exist is further enlarged, and small particles pass through the gap by a machine and are transferred to a lower layer or a conveyor. Because the small particles have small gaps and large particles cannot penetrate through the small particles, original randomly arranged particle groups are separated, namely, the particles are layered according to the particle sizes, and the arrangement rule that the small particles are below and the coarse particles are above is formed. The fine particles reaching the screen surface are screened by the screen mesh smaller than the screen mesh, and finally coarse and fine particles are separated, so that the screening process is completed, and the screening requirements on the mine stones with different particle sizes in the material are met.

However, in the production process of mine ore dressing, materials often block the screen holes in the working process of the vibrating screen and are forced to stop, and the box body of the vibrating screen needs to be manually opened to manually poke out the ore blocking objects for cleaning. Because the vibrating screen has relatively high energy consumption, the machine is restarted, so that the time is delayed, the energy consumption is high, the electric power and financial resources are wasted, and the vibrating screen needs to be cleaned and maintained regularly after being used every time.

Disclosure of Invention

In order to avoid the problem of being forced to shut down because the ore material blocks up the sieve mesh in the shale shaker working process, the utility model provides a novel shale shaker when taking place the sieve mesh of ore block up screening plant 7, need not stop the operation. And starting the cleaning device, and cleaning the blockage out of the sieve mesh by utilizing the impact force of the high-pressure water gun. The cleaning device and the undersize channel can be arranged in a box body of the vibrating screen and are mutually independent and mutually independent. The specific scheme is as follows:

a vibrating screen capable of cleaning mineral blockages comprises a motor 3, a vibrator 4, a support 5, a horizontal beam 6, a screen box 2, a feed hopper 1, a screening device 7, an upper discharge port 8, a lower channel 9, a lower discharge port 9-1 and the like;

the shale shaker still includes: a feed channel 1-1, a cleaning device 10,

two ends of the feeding channel 1-1 are respectively and fixedly connected with the feeding hopper 1 and the screening device 7; the cleaning device 10 and the screening device 7 have the same shape and size;

the lower channel 9 is positioned right below the screening device 7, and has the same shape and size as the screening device 7;

the cleaning device 10 and the lower channel 9 are fixedly connected on the same plane; the inclination angles and directions of the screening device 7, the cleaning device 10 and the lower channel 9 are equal, and the inclination angle X meets the following conditions:

x = arctan (L/H), wherein X denotes the angle between the screening device 7, the cleaning device 10, the lower channel 9 and the horizontal plane; l indicates the actual length of the screening device 7, the cleaning device 10 and the lower channel 9; h denotes the vertical distance between the screening device 7 and the cleaning device 10;

the tilt angle X is calculated as shown in fig. 4, where tanX = L/H.

The cleaning device 10 comprises a cleaning device body 10-1 and a plurality of high-pressure water guns 10-2, the high-pressure water guns 10-2 are fixedly connected to the cleaning device body 10-1, and the water spraying direction faces the screening device 7 and is perpendicular to the plane of the screening device 7. Outside the water source of high pressure squirt originated from the organism of shale shaker, the water source leads to pipe to carry to high pressure squirt in, its theory of operation belongs to prior art, the utility model discloses in do not specifically explain this.

When the screen of the raw screening device 7 is not blocked, undersize of the screening device 7 can normally fall into the lower channel 9; when the screen cloth of screening plant 7 takes place to block up, start cleaning device 10, the high-pressure squirt of intensive range launches the water pressure of high-strength pressure, strikes the screen cloth of screening plant 7, and the plug can be strikeed open. In the process, due to the design of the inclination angle and the distance among the screening device 7, the cleaning device 10 and the lower channel 9, the screening function and the cleaning function are independent and do not influence each other, and screened objects cannot fall onto the cleaning device to influence the cleaning function.

The cleaning device 10 comprises a cleaning device body 10-1 and a high-pressure water gun 10-2.

The cleaning device body 10-1 can be a base plate 10-3, the high-pressure water guns 10-2 are more in number and are fully distributed on the base plate 10-3, and the high-pressure water guns 10-2 are densely and uniformly arranged on the base plate 10-3 and are fixedly connected with the base plate 10-3. When cleaning operation needs to be carried out, the densely arranged high-pressure water guns 10-2 emit high-pressure water flow together to impact the whole screen, so that blockage is thoroughly cleaned.

The cleaning device body 10-1 can also consist of a double slide rail 10-4, a sliding device 10-5 and a pulling device 10-6; the high-pressure water guns 10-2 are densely and uniformly arranged on the sliding device 10-5 and are fixedly connected with the sliding device 10-5; the sliding device 10-5 is connected with the double sliding rails 10-4 in a sliding manner and can slide along the double sliding rails 10-4.

Under the condition that the pulling device 10-6 does not exert acting force, the sliding device 10-5 is positioned on one side of the double-sliding-rail 10-4 close to the lower end of the lower channel 9 under the action of gravity; after the pulling device 10-6 is started, the sliding device 10-5 can be dragged to move towards one side of the upper end of the double sliding rail 10-4 along the double sliding rail 10-4; meanwhile, the high-pressure water gun 10-2 emits high-pressure water flow which uniformly sweeps across the screening device 7 from bottom to top.

The pulling device 10-6 comprises a connecting rope, a moving device and a pulley; one side of the rope is connected with the motor, and the other side of the rope is connected with the sliding device 10-5. The side wall of the box body is provided with an opening, a rope passes through the opening on the side wall of the box body to connect the sliding device 10-5 with an actuating device such as a motor and the like, and the direction of the pulling force is switched through a pulley.

When cleaning operation needs to be carried out, the densely arranged high-pressure water guns 10-2 emit high-pressure water flows together, and meanwhile, the pulling device 10-6 is started to enable the sliding device 10-5 to move along the double sliding rails 10-4, so that the densely arranged high-pressure water guns 10-2 impact the whole screen and the blockages on the screen, and the blockages are separated from meshes.

The vibrating screen can also be arranged on a screen of the screening device 7, an ultrasonic sensor 11 is arranged on the screen, the vibration frequency of the screening device 7 is sensed to send out a prompt when a blockage blocks the mesh of the screen, and when a worker receives a signal or observes an abnormal reading, the cleaning device 10 is started to enable the high-pressure water gun 10-2 to start to operate.

When the sieve pores are blocked by the ore materials, the vibrating screen can clear away the blocking objects while the vibrating screen works normally; after the use, directly start high-pressure injection apparatus and can realize the clearance maintenance, improve production work efficiency. In the cleaning process, the vibrating screen does not need to be stopped, and the screen box of the vibrating screen does not need to be opened for manual cleaning, so that the production work efficiency is improved.

Drawings

FIG. 1 is a schematic view of a prior art linear shaker;

FIG. 2 is a schematic view showing a part of the structure of a vibrating screen in a first embodiment, with a box body of the vibrating screen omitted;

FIG. 3 is a schematic view showing a part of the structure of a vibrating screen in a second embodiment in a spatial relationship with a box body of the vibrating screen omitted;

figure 4 is a schematic view of the inclination and distance between the screening device 7, the cleaning device 10 and the lower channel 9.

Detailed Description

The technical solution of the present invention will be explained below with reference to the drawings and the detailed description.

Example 1

When the screen of the screening device 7 is not blocked and works normally, undersize materials of the screening device 7 can fall into the lower channel 9 normally, and normal screening work is realized.

When the screen cloth of screening plant 7 takes place to block up, judge through artifical experience that shale shaker frequency of vibration is unusual or oversize thing granule grow, perhaps should screening plant 7's frequency of vibration through ultrasonic sensor 11, when the staff received the signal or observed unusual reading, start cleaning device 10, the intensive messenger high-pressure squirt 10-2 that arranges begins the operation, the perpendicular high-pressure rivers that spray towards screening plant 7, high-pressure rivers impact whole screen cloth area, ensure that the jam is cleared up thoroughly. When the whole screen is impacted by high-pressure water, the cleaning device 10 is stopped, and the high-pressure water gun 10-2 stops spraying water. Thereafter, the feeding is continued, the screening work is performed, and the screening work is performed.

Example 2

When the screen of the screening device 7 is not blocked and works normally, undersize materials of the screening device 7 can fall into the lower channel 9 normally, and normal screening work is realized. At the moment, the sliding device 10-5 is positioned on one side of the double slide rails 10-4 close to the lower end of the lower channel 9 under the action of gravity.

When a screen of the screening device 7 is blocked, the vibration frequency of the vibrating screen is judged to be abnormal or oversize particles are judged to be large through manual experience, or when a worker receives a signal or observes an abnormal reading through the vibration frequency of the screening device 7 by the ultrasonic sensor 11, the cleaning device 10 is started, the densely arranged high-pressure water guns 10-2 emit high-pressure water flow together, meanwhile, the engine of the pulling device 10-6 is started, the engine rotates to pull a rope, the sliding device 10-5 is dragged to move along the double sliding rails 10-4, the impact range of the densely arranged high-pressure water guns 10-2 covers the whole screen and the blockages on the screen, and the blockages are separated from the screen holes. And then stopping the cleaning device 10, stopping the water spraying of the high-pressure water gun 10-2, eliminating the power provided by the engine, and sliding the sliding device 10-5 back to one side of the lower end of the double slide rails (10-4) close to the lower channel (9) under the action of the self gravity. Thereafter, the feeding was continued and the screening work was carried out.

In the whole process, the operation of the vibrating screen does not need to be stopped, so that the energy consumed by stopping and restarting the vibrating screen is saved; meanwhile, the box body of the vibrating screen does not need to be opened, and the blockage is manually cleaned.

Claims (5)

1. A vibrating screen capable of cleaning blockage without disassembly comprises a motor (3), a vibrator (4), a support (5), a horizontal beam (6), a screen box (2), a feed hopper (1), a screening device (7), an upper discharge hole (8), a lower channel (9), a lower discharge hole (9-1) and the like;

it is characterized in that the preparation method is characterized in that,

the vibrating screen further comprises: the two ends of the feeding channel (1-1) are respectively and fixedly connected with the feeding hopper (1) and the screening device (7); the cleaning device (10) and the screening device (7) are the same in shape and size;

the lower channel (9) is positioned right below the screening device (7) and has the same shape and size as the screening device (7);

the cleaning device (10) and the lower channel (9) are fixedly connected on the same plane;

the inclination angles and directions of the screening device (7), the cleaning device (10) and the lower channel (9) are equal, and the inclination angle X meets the following conditions:

x = arctan (L/H), wherein X refers to the included angle between the screening device (7), the cleaning device (10) and the lower channel (9) and the horizontal plane; l refers to the actual length of the screening device (7), the cleaning device (10) and the lower channel (9); h is the vertical distance between the screening device (7) and the cleaning device (10);

the cleaning device (10) comprises a cleaning device body (10-1) and high-pressure water guns (10-2), the number of the high-pressure water guns (10-2) is more than 3, and the water spraying directions of the high-pressure water guns (10-2) face the screening device (7) and are perpendicular to the plane of the screening device (7).

2. The vibrating screen capable of cleaning the blockage without disassembly as claimed in claim 1, wherein the cleaning device body (10-1) is a base plate (10-3), and the high-pressure water guns (10-2) are densely arranged and uniformly distributed on the base plate (10-3) and fixedly connected with the base plate (10-3).

3. The vibrating screen capable of clearing the blockage without disassembly as claimed in claim 1, characterized in that the clearing device body (10-1) consists of a double slide rail (10-4), a sliding device (10-5) and a pulling device (10-6);

the sliding device (10-5) is connected with the double sliding rails (10-4) in a sliding way and can slide along the double sliding rails (10-4);

under the condition that the pulling device (10-6) does not exert acting force, the sliding device (10-5) is positioned on one side of the double sliding rails (10-4) close to the lower end of the lower channel (9) under the action of gravity;

the high-pressure water guns (10-2) are densely arranged on the sliding device (10-5) and are fixedly connected with the sliding device (10-5); after the pulling device (10-6) is started, the sliding device (10-5) can be dragged to move towards one side of the upper end of the double sliding rail (10-4) along the double sliding rail (10-4).

4. A vibrating screen for plug removal without dismantling, as in claim 3, characterized in that said pulling means (10-6) comprise connecting ropes, moving means, pulleys; one side of the rope is connected with the motor, and the other side of the rope is connected with the sliding device (10-5).

5. A vibrating screen for removing blockages without dismantling, as set forth in any of claims 1-4, characterized in that the vibrating screen further comprises an ultrasonic sensor (11).

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