CN113578738A

CN113578738A - Vibrating screen

Info

Publication number: CN113578738A
Application number: CN202110919698.7A
Authority: CN
Inventors: 赖雄鸣; 韩黎明; 王成; 张勇; 钟伟彬
Original assignee: Quanzhou Rongda Machinery Co ltd; Huaqiao University
Current assignee: Quanzhou Rongda Machinery Co ltd; Huaqiao University
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-11-02

Abstract

The invention provides a vibrating screen which comprises a vibrating screen box body, a support and a screen; the support supports the vibrating screen box body, a supporting pipe is arranged on the vibrating screen box body, and the screen is arranged on the supporting pipe; the plane where the supporting tube is located is specifically an inclined plane, and the height from one end of the supporting tube to the other end of the supporting tube to the ground is gradually reduced; the vibration motor is characterized by also comprising a spring module and a vibration motor; the spring module is arranged in the vibrating screen box body and is arranged along the direction vertical to the ground; two ends of the spring module are respectively flexibly connected with the vibrating screen box body and the screen; the vibrating motors are fixed on one surface of the screen, which faces the supporting tube; and the vibration motor is arranged along the height change direction of the screen from the ground. By applying the technical scheme, different vibration accelerations of different areas of the screen can be realized, and the purpose of more efficient screening is achieved.

Description

Vibrating screen

Technical Field

The invention relates to the field of vibrating screens, in particular to a vibrating screen.

Background

The vibrating screen mainly comprises a screen mesh with a certain size, and is characterized in that the screen mesh is arranged on the screen mesh, then the screen mesh vibrates to drive the material to vibrate loosely on the screen mesh, small-particle materials fall down from the screen mesh, and large-particle materials are discharged from the tail part of the screen surface, so that the materials with different sizes are screened. At present, the commonly used vibrating screens are mainly divided into: linear vibrating screens, circular vibrating screens, elliptical vibrating screens, and the like. In any form, the vibrating screen is characterized in that the high-power motor drives the whole vibrating screen box body to vibrate, and then drives the screen on the vibrating screen box body to vibrate.

This structure has the following problems: 1) the energy consumption is big: the whole thick vibrating screen box body vibrates, so that the energy consumption is large; 2) the noise is big: the whole thick and heavy vibrating screen box body vibrates, a large amount of noise is inevitably generated, and the working environment around the vibrating screen is influenced; 3) the screening efficiency is low: the vibration acceleration of each region of screen surface is unanimous basically, can't realize the regional vibration acceleration size fine setting of different screen surfaces according to the screen surface in the regional functional requirement of front end region, middle part, afterbody, leads to screening efficiency lower. Note: the desired screening effect is in the area of the front end of the screening surface, i.e.: the blanking region of sifter requires the material to be loosened as fast as possible, so that the material layer can be layered in size fast under the premise of realizing certain screening capacity in the middle region of the sifter, and the material is discharged slowly in the tail region of the sifter, which is beneficial to improving the screening efficiency. In order to achieve the ideal screening effect, the vibration acceleration of each area of the screen surface is required to be adjustable.

Disclosure of Invention

The invention aims to provide a vibrating screen, which realizes different vibration accelerations of different areas of a screen mesh and achieves the purpose of more efficient screening.

In order to solve the technical problem, the invention provides a vibrating screen which comprises a vibrating screen box body, a support and a screen; the support supports the vibrating screen box body, a supporting pipe is arranged on the vibrating screen box body, and the screen is arranged on the supporting pipe; the plane where the supporting tube is located is specifically an inclined plane, and the height from one end of the supporting tube to the other end of the supporting tube to the ground is gradually reduced; the vibration motor is characterized by also comprising a spring module and a vibration motor; the spring module is arranged in the vibrating screen box body and is arranged along the direction vertical to the ground; two ends of the spring module are respectively flexibly connected with the vibrating screen box body and the screen; the vibrating motors are fixed on one surface of the screen, which faces the supporting tube; and the vibration motor is arranged along the height change direction of the screen from the ground.

In a preferred embodiment, a vibrating block is arranged inside the vibrating motor; the vibrating motor rotates to drive the vibrating block to rotate to generate centrifugal inertia force, so that the screen of the vibrating screen vibrates, and materials are loosened.

In a preferred embodiment, the support tube is composed of a plurality of square tubes; and motor isolation covers are arranged outside the vibration motors.

In a preferred embodiment, the square pipes comprise a transverse square pipe arranged along the transverse direction and a vertical square pipe arranged along the vertical direction; a plurality of the transverse square tubes are arranged in parallel, and a plurality of the vertical square tubes are arranged in parallel; and the transverse square pipe and the vertical square pipe are mutually perpendicular to form a support pipe network for supporting the screen.

In a preferred embodiment, a left screen plate and a right screen plate are respectively arranged on two sides of the vibrating screen box body, and planes of the left screen plate and the right screen plate are arranged along a vertical direction.

In a preferred embodiment, the upper end of the left screen plate is connected with a left rubber baffle, and the upper end of the right screen plate is connected with a right rubber baffle; the left rubber baffle and the right rubber baffle are both obliquely arranged and are arranged in an axisymmetric manner between the left rubber baffle and the right rubber baffle.

In a preferred embodiment, the upper ends of the left rubber baffle and the right rubber baffle are respectively connected with the left screen plate and the right screen plate; the lower ends of the left rubber baffle and the right rubber baffle are abutted to the screen.

In a preferred embodiment, two ends of the left rubber baffle and the right rubber baffle are respectively provided with a discharging chute and a feeding chute, the feeding chute is positioned above the screen, and the discharging chute is positioned below the screen.

In a preferred embodiment, the spring module comprises a spring, a spring dust-proof sleeve and a spring fixer; a spring dustproof sleeve is arranged outside the spring; and the two ends of the spring are respectively connected with an upper spring fixer and a lower spring fixer.

In a preferred embodiment, the upper spring retainer is adapted to be connected to the screen and the lower spring retainer is adapted to be connected to the shaker casing.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects:

the invention provides a vibrating screen, wherein a left rubber baffle and a right rubber baffle are arranged on the periphery of a screen, and a plurality of vibrating motors are arranged in different areas at the bottom of a frame. Then, spring supports are arranged on two sides of the whole screen frame and connected with the frames on two sides of the vibrating screen box body. Finally realize vibrating motor and drive screen cloth and frame vibration all around, moreover all other subassemblies of shale shaker are like: the shaker box or the like remains stationary. The vibrating screen structure has the advantages that only the screen and the reinforced frames around the screen vibrate, the vibrating screen box is static, and the weight of the screen is far lower than that of the whole vibrating screen. Thus, the vibrating screen of this construction saves energy and the separately vibrating screen is much less noisy than a vibrating screen in which the vibrating screen box and screen vibrate together. In addition, the frame around the screen of the vibrating screen is provided with a plurality of vibrating motors, so that the vibration acceleration of different areas of the screen surface of the vibrating screen can be finely adjusted, and the purpose of high-efficiency screening can be realized. The vibrating motor drives the screen to vibrate independently, so as to drive the materials to be loosened and screened on the screen. Because only the screen and the peripheral frame of the screen vibrate, the whole vibrating screen box body does not vibrate. Therefore, the novel vibrating screen of this patent is far lower than the conventional vibrating screen in terms of energy consumption and noise. In addition, after the plurality of vibrating motors are arranged below different areas of the screen, vibration parameters can be conveniently adjusted, so that different vibration accelerations of the different areas of the screen are realized, and the purpose of more efficient screening is finally achieved.

The utility model provides an only screen cloth and all around strengthen the frame vibration, the shale shaker structure that all other subassemblies do not vibrate has solved the shortcoming that conventional shale shaker exists, can be applicable to the improvement of the shale shaker structure of various forms such as linear vibrating screen, circular shale shaker, oval shale shaker including individual layer or multilayer screen cloth, low in manufacturing cost, good reliability, adjustable capability are strong, accommodation is wide, convenient using widely.

Drawings

FIG. 1 is a front view of a shaker screen in a preferred embodiment of the present invention;

FIG. 2 is an overall assembly view of a shaker screen in accordance with a preferred embodiment of the present invention;

FIG. 3 is a general overview of a shaker in a preferred embodiment of the present invention;

FIG. 4 is a schematic view of a vibratory motor of the shaker in a preferred embodiment of the present invention;

fig. 5 is a diagram of a spring module of a shaker screen in a preferred embodiment of the present invention.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

A vibrating screen comprises a vibrating screen box body, a bracket 1 and a screen 15; the support 1 supports the vibrating screen box body, and an inner cavity 2 of the vibrating screen box body is used for receiving materials. A supporting pipe is arranged on the vibrating screen box body, and the screen 15 is arranged on the supporting pipe; the plane where the supporting tube is located is specifically an inclined plane, and the height from one end of the supporting tube to the other end of the supporting tube to the ground is gradually reduced; the device also comprises a spring 7 module and a vibration motor 9; the spring 7 module is arranged in the vibrating screen box body, and the spring 7 module is arranged along the direction vertical to the ground; two ends of the spring 7 module are respectively flexibly connected with the vibrating screen box body and the screen 15; a plurality of vibration motors 9 are fixed on one surface of the screen 15 facing the support pipe; and the vibration motor 9 is arranged along the height change direction of the screen 15 from the ground. Specifically, the vibration motor 9 is specifically a low-power vibration motor 9.

Specifically, the bracket 1 has four support legs 101 and a bottom plate 102; one end of the supporting leg 101 is fixedly connected with the bottom plate 102, and the other end of the supporting leg 101 is fixedly connected with the vibrating screen box body. The box body of the vibrating screen is rigidly connected with the bracket 1 through bolts.

A vibrating block is arranged inside the vibrating motor 9; the vibrating motor 9 rotates to drive the vibrating block to rotate to generate centrifugal inertia force, so that the screen 15 of the vibrating screen vibrates, and materials are loosened. The supporting tube is composed of a plurality of square tubes 12; the vibration motors 9 are all provided with motor isolation covers 14 on the outer portions. A plurality of low-power vibrating motors 9 are installed on the screen 15, and as the vibrating motors 9 are directly exposed to materials below the screen 15, the normal operation of the vibrating motors 9 is easily interfered in the process of loosening and screening the materials, and therefore the whole vibrating motors 9 are wrapped by the motor isolation cover 14. The motor isolation cover 14 is used for preventing materials from directly falling on the vibration motor 9 and influencing the normal work of the vibration motor 9. Meanwhile, the motor isolation cover 14 is designed to be semicircular, so that the motor isolation cover is more fit with the vibration motor 9 on one hand, and on the other hand, materials can slide down on the motor isolation cover 14 more quickly without interfering the normal work of the vibration motor 9.

According to the design, a plurality of low-power vibrating motors 9 are arranged below a vibrating screen 15, the vibrating acceleration of the vibrating motors 9 is adjusted, so that the front end region of a screen surface (namely, a blanking region of the screen surface) is enabled to be loosened as fast as possible, the material layers can be layered in size fast on the premise that certain screening capacity is realized in the middle region of the screen surface, the falling speed of the material is slowed down in the tail region of the screen surface, the material can be screened better on the screen 15, and the material screening efficiency is improved.

The square pipe 12 comprises a transverse square pipe arranged along the transverse direction and a vertical square pipe arranged along the vertical direction; a plurality of the transverse square tubes are arranged in parallel, and a plurality of the vertical square tubes are arranged in parallel; and the transverse square pipe and the vertical square pipe are perpendicular to each other to form a support pipe network for supporting the screen 15.

The both sides of shale shaker box are provided with left side sieve 3 and right side sieve 13 respectively, left side sieve 3 and the setting of vertical direction is followed to the plane of right side sieve 13 place. The upper end of the left screen plate 3 is connected with a left rubber baffle 6, and the upper end of the right screen plate 13 is connected with a right rubber baffle 4; left side rubber baffle 6 and right side rubber baffle 4 all incline to set up and axial symmetry sets up between left side rubber baffle 6 and the right side rubber baffle 4. The upper ends of the left rubber baffle 6 and the right rubber baffle 4 are respectively connected with the left sieve plate 3 and the right sieve plate 13; the lower ends of the left rubber baffle 6 and the right rubber baffle 4 are abutted against the screen 15. The both ends of left side rubber baffle 6 and right side rubber baffle 4 are provided with ejection of compact chute 5 and feeding chute 11 respectively, just feeding chute 11 is located screen cloth 15's higher authority, ejection of compact chute 5 is located below screen cloth 15.

The spring 7 module comprises a spring 7, a spring dustproof sleeve 8 and a spring fixer 10; a spring dustproof sleeve 8 is arranged outside the spring 7; and two ends of the spring 7 are respectively connected with an upper spring fixer 10 and a lower spring fixer 10. The upper spring retainer 10 is used for connecting with the screen 15, and the lower spring retainer 10 is used for connecting with a vibrating screen box body.

This patent spring 7 arrange the inside and the shale shaker box of shale shaker box in and link to each other, spring 7 directly exposes the below and the material at screen cloth 15 and contacts, the in-process of going on loose screening to the material at the shale shaker falls on spring 7 and locates the normal work that influences the shale shaker, consequently adds a spring dirt proof boot 8 on every spring 7 of spring 7 module. Spring dirt proof boot 8 chooses the rubber material for use, has fine ductility, and the demand that spring 7 compressed and stretched together along with spring 7 in the course of the work that can be fine satisfies. Since the spring 7 can only be subjected to compressive or tensile forces in the radial direction and the screen 15 connected to the spring 7 has a certain inclination with respect to the ground, a spring retainer 10 is designed to secure the spring 7 between the screen 15 and the box of the vibrating screen, so that the spring 7 is perpendicular to the ground, ensuring that the spring 7 can bear the maximum possible radial forces during the movement of the vibrating screen.

The screen cloth 15 is connected with the vibrating screen box body through the spring 7, and in the process of loosely screening materials by the vibrating screen, in order to prevent the materials from directly sliding to the inside of the vibrating screen box body through the edge of the screen cloth 15 in the screening process, the left rubber baffle 6 and the right rubber baffle 4 are arranged on the left screen plate 3 and the right screen plate 13. The screen 15 is designed with baffles of a certain height. The left rubber baffle 6 and the right rubber baffle 4 naturally fall on the edge of the screen 15, and when the vibrating screen works, the rubber baffles with certain elasticity always fall on two sides of the screen 15 to guide materials to be loosely screened along the screen 15. In addition, the screen 15 can be arranged in double layers or even multiple layers, the layers are rigidly connected through the square pipes 12, and the single-layer or multi-layer screen 15 is flexibly connected with the vibrating screen box body through the springs 7. This patent shale shaker screen cloth 15 only can represent a structure, screen cloth 15 can be changed to the actual conditions of material screening according to the shale shaker subsequently to guarantee that the shale shaker can adapt to more operating modes.

In any form of vibrating screen, including a linear vibrating screen with a single-layer screen 15 or multiple-layer screen 15, a circular vibrating screen, an elliptical vibrating screen and the like, the advantage that the structure provided by the patent is improved to the structure that the screen 15 vibrates and the whole vibrating screen box body of the vibrating screen is not moved can be adopted. The utility model provides an only screen cloth 15 and all around strengthen the frame vibration, the shortcoming that conventional shale shaker exists has been solved to the shale shaker structure that all other subassemblies do not vibrate, can be applicable to the improvement of the shale shaker structure of various forms such as the straight line shale shaker, circular shale shaker, the elliptical shale shaker that include individual layer or multilayer screen cloth 15, low in manufacturing cost, good reliability, controllability are strong, accommodation is wide, convenient using widely.

The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.

Claims

1. A vibrating screen is characterized by comprising a vibrating screen box body, a support and a screen; the support supports the vibrating screen box body, a supporting pipe is arranged on the vibrating screen box body, and the screen is arranged on the supporting pipe; the plane where the supporting tube is located is specifically an inclined plane, and the height from one end of the supporting tube to the other end of the supporting tube to the ground is gradually reduced; the vibration motor is characterized by also comprising a spring module and a vibration motor; the spring module is arranged in the vibrating screen box body and is arranged along the direction vertical to the ground; two ends of the spring module are respectively flexibly connected with the vibrating screen box body and the screen; the vibrating motors are fixed on one surface of the screen, which faces the supporting tube; and the vibration motor is arranged along the height change direction of the screen from the ground.

2. The vibrating screen of claim 1, wherein the vibrating motor is internally provided with a vibrating mass; the vibrating motor rotates to drive the vibrating block to rotate to generate centrifugal inertia force, so that the screen of the vibrating screen vibrates, and materials are loosened.

3. A vibratory screen as set forth in claim 1 wherein the support tube is comprised of a plurality of square tubes; and motor isolation covers are arranged outside the vibration motors.

4. The vibrating screen as claimed in claim 3, wherein the square tubes comprise a transverse square tube arranged in a transverse direction and a vertical square tube arranged in a vertical direction; a plurality of the transverse square tubes are arranged in parallel, and a plurality of the vertical square tubes are arranged in parallel; and the transverse square pipe and the vertical square pipe are mutually perpendicular to form a support pipe network for supporting the screen.

5. The vibrating screen of claim 1, wherein a left screen plate and a right screen plate are respectively arranged on two sides of the vibrating screen box body, and planes on which the left screen plate and the right screen plate are arranged along a vertical direction.

6. The vibrating screen of claim 5, wherein a left rubber baffle is connected to the upper end of the left screen plate, and a right rubber baffle is connected to the upper end of the right screen plate; the left rubber baffle and the right rubber baffle are both obliquely arranged and are arranged in an axisymmetric manner between the left rubber baffle and the right rubber baffle.

7. The vibrating screen of claim 6, wherein the upper ends of the left rubber baffle and the right rubber baffle are respectively connected with the left screen plate and the right screen plate; the lower ends of the left rubber baffle and the right rubber baffle are abutted to the screen.

8. The vibrating screen as claimed in claim 7, wherein the left rubber baffle and the right rubber baffle are respectively provided with a discharging chute and a feeding chute at two ends, the feeding chute is positioned above the screen, and the discharging chute is positioned below the screen.

9. The vibratory screen of claim 1, wherein the spring modules comprise springs, spring dust caps, and spring retainers; a spring dustproof sleeve is arranged outside the spring; and the two ends of the spring are respectively connected with an upper spring fixer and a lower spring fixer.

10. A vibratory screen as set forth in claim 9 wherein said upper spring retainer is adapted for connection with said screen and said lower spring retainer is adapted for connection with a vibratory screen housing.