Vibrating screen applicable to multiple working conditions

Abstract

A vibrating screen suitable for multiple working conditions comprises a screen box and at least two screen frames, the at least two screen frames are arranged on the screen box at intervals from top to bottom, a feeding port is formed in the front end of the screen box, at least two discharging ports are formed in the rear end of the screen box, the discharging ports correspond to the screen frames one to one, at least one screen mesh is installed on each screen frame, and the screen meshes are arranged on the screen box. Each screen frame can be provided with different types of screens or combinations of the screens, a vibration exciter is arranged on the screen box and driven by a driving device, the screen box is further provided with a plurality of elastic elements, the elastic elements are used for supporting the screen box and transmitting exciting force of the vibration exciter, and the vibrating screen suitable for the multiple working conditions comprises an upper-layer screen frame and a lower-layer screen frame. And an upper-layer discharge hole and a lower-layer discharge hole are respectively formed in the rear end of the screen box corresponding to the upper-layer screen frame and the lower-layer screen frame.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen technology, and in particular to a vibrating screen applicable to multiple working conditions. Background Technology

[0002] The circular vibrating screen is a new type of vibrating screen that performs circular vibration, has multiple layers, and is highly efficient. It has many features such as high strength, high vibration intensity, high output, high screening efficiency, energy saving and environmental protection, and simple use and maintenance. It is currently widely used for screening materials such as sand, gravel, coal, topsoil, and construction waste.

[0003] In existing technologies, circular vibrating screens have a significant advantage for small-sized, easily screenable materials and are mainly used for medium and fine screening of various sand and gravel materials, such as sand and gravel aggregates. However, for larger-sized or difficult-to-separate materials, such as mining and quarrying, construction waste, sand and gravel, topsoil, etc., existing circular vibrating screens are difficult to screen.

[0004] Meanwhile, the market demand for primary screening is greater, thus requiring a circular vibrating screen suitable for various working conditions that can handle primary, intermediate, and fine screening. Utility Model Content

[0005] The purpose of this invention is to provide a vibrating screen applicable to multiple working conditions, aiming to solve or at least partially solve the shortcomings of the above-mentioned background technology. It is suitable for a variety of working conditions, covering primary, intermediate and fine screening, and realizes diversified applications.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-condition vibrating screen includes a screen box and at least two screen frames. The at least two screen frames are spaced apart from top to bottom on the screen box. A feed inlet is located at the front end of the screen box, and at least two discharge outlets are located at the rear end of the screen box, each corresponding to a screen frame. Each screen frame is equipped with at least one screen mesh, and each screen frame can be configured with different types of screen mesh or combinations of screen meshes. A vibrator is installed on the screen box, driven by a drive device. The screen box also includes multiple elastic elements for supporting the screen box and transmitting the excitation force of the vibrator. The multi-condition vibrating screen includes an upper screen frame and a lower screen frame. The rear end of the screen box is provided with an upper discharge port and a lower discharge port corresponding to the upper and lower screen frames, respectively. When primary screening is required, a first screen component is installed on the upper screen frame. The first screen component is at least one of a grate screen or a finger screen. When intermediate screening is required after primary screening, a second or third screen component is installed on the lower screen frame. The second screen component is a small finger screen, and the third screen component is at least one of a woven screen or a perforated plate. When fine screening is required after primary screening, a fourth screen component is installed on the lower screen frame. The fourth screen component is at least one of a woven screen or a plate screen.

[0008] Furthermore, the drive device is a hydraulic motor or an electric motor.

[0009] Furthermore, the third and fourth screen components are respectively matched with a vibrating frame, which provides support.

[0010] Furthermore, the vibrating screen applicable to multiple working conditions also includes a middle screen frame, and a middle discharge port is provided at the rear end of the screen box corresponding to the middle screen frame.

[0011] Furthermore, a fifth or sixth screen element is installed on the middle screen frame. The fifth screen element is a small finger screen, and the sixth screen element is at least one of a woven screen or a perforated plate.

[0012] This utility model provides a multi-condition applicable vibrating screen. The embodiments of this utility model allow for the installation of different types of screen mesh on the screen frame, achieving screen mesh versatility. By configuring multiple screen meshes or screen mesh combinations, this multi-condition applicable vibrating screen can accommodate various application conditions and is suitable for the grading of most heavy materials, covering primary, intermediate, and fine screening. Therefore, this multi-condition applicable vibrating screen has a wide range of uses, is easy to install, and convenient to use, exhibiting good practicality, economy, functionality, reliability, and applicability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the vibrating screen applicable to multiple working conditions in Embodiment 1 of this utility model.

[0014] Figure 2This is a schematic diagram of the various screens used in this utility model.

[0015] Figure 3 This is a schematic diagram of the vibration frame in this utility model. Detailed Implementation

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0017] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0018] The directional terms such as "up," "down," "left," "right," "front," "back," "top," and "bottom" (if present) used in the specification and claims of this utility model are defined according to the position of the structures in the drawings and the relative positions of the structures, and are only for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed in this application.

[0019] Example 1:

[0020] Please see Figures 1-3 A vibrating screen suitable for multiple working conditions includes a screen box 10 and at least two screen frames 11. Multiple screen frames 11 are spaced apart from top to bottom on the screen box 10. The front end of the screen box 10 is provided with a feed inlet 12, and the rear end of the screen box 10 is provided with at least two discharge outlets 13. The discharge outlets 13 correspond one-to-one with the screen frames 11. At least one screen mesh 100 is installed on each screen frame 11. The screen box 10 is provided with a vibrator 20, which is driven by a drive device 21. The screen box 10 is also provided with multiple elastic elements 30, which are used to support the screen box 10 and transmit the excitation force of the vibrator 20.

[0021] When the multi-condition vibrating screen is working, the drive device 21 drives the vibrator 20, the vibrator 20 generates a vibration force, the vibration force excites the elastic element 30, thereby causing the screen box 10 to reciprocate along a specific trajectory, thereby screening the material and driving the screened material to flow to the discharge port 13.

[0022] In this embodiment, when the drive device 21 rotates clockwise, the material flows from the feed port 12 to the discharge port 13.

[0023] The multi-condition vibrating screen provided in this embodiment allows for the installation of different types of screen meshes 100 on the screen frame 11, achieving screen mesh versatility. By configuring multiple screen meshes or combinations thereof, the multi-condition vibrating screen can accommodate various application conditions and is suitable for the grading of most heavy materials, covering primary, intermediate, and fine screening. Therefore, the multi-condition vibrating screen is widely applicable, easy to install, and convenient to use, exhibiting good practicality, economy, functionality, reliability, and applicability.

[0024] The drive device 21 is a hydraulic motor or an electric motor. In this embodiment, the drive device 21 is a hydraulic motor, and the vibrator 20 is hydraulically driven, which allows the vibrator 20 to have a wide load-bearing range and fewer operational failures.

[0025] Furthermore, the multi-condition applicable vibrating screen includes an upper screen frame 111 and a lower screen frame 112. The rear end of the screen box 10 is respectively provided with an upper discharge port and a lower discharge port corresponding to the upper screen frame 111 and the lower screen frame 112.

[0026] Under normal operating conditions, for large-sized materials, the screen of the multi-condition applicable vibrating screen can be configured as follows:

[0027] (1) The upper screen frame 111 performs primary screening: When primary screening is required, a first screen component is installed on the upper screen frame 111. The first screen component is at least one of a grate screen 102 and a finger screen 101. Both the grate screen 102 and the finger screen 101 can withstand large stone impacts.

[0028] (2) The lower screen frame 112 performs intermediate screening: When intermediate screening is required after primary screening, the working conditions are distinguished according to the primary screening. If the material size is large and difficult to separate, a second screen can be installed on the lower screen frame 112. The second screen is a small finger screen 105. If the material size is small and easy to separate, a third screen can be installed on the lower screen frame 112. The third screen is at least one of woven screen 104 and perforated plate 103.

[0029] (3) The lower screen frame 112 performs fine screening: When fine screening is required after primary screening, a fourth screen component is installed on the lower screen frame 112. The fourth screen component is at least one of woven screen 107 and plate screen 106.

[0030] Under normal operating conditions, for the intermediate and fine screening of various sand and gravel materials, the screen of the multi-condition vibrating screen can be configured as follows: the third screen can be installed on the upper screen frame 111, and the fourth screen can be installed on the lower screen frame 112.

[0031] In more complex working conditions, such as with larger and more easily loosened materials, the screen of the multi-condition vibrating screen can be configured as follows: a seventh or eighth screen can be installed on the upper screen frame 111. The seventh screen is composed of the finger screen 101 and the perforated plate 103, and the eighth screen is composed of the woven screen 104 and the perforated plate 103. During vibration, the material disperses, and the material can be screened at an intermediate level by the seventh or eighth screen. The fourth screen can be installed on the lower screen frame 112 for fine screening of the material from the previous stage.

[0032] In summary, by configuring different types of screens or combinations of screens on the upper screen frame 111 and the lower screen frame 112 respectively, the multi-condition vibrating screen can be adapted to various working conditions, covering primary, intermediate and fine screening.

[0033] Furthermore, the third, fourth, seventh, and eighth screen components are respectively coupled with a vibrating frame 200. The vibrating frame 200 provides support. When the third, fourth, seventh, or eighth screen component is installed on the screen frame 11, the vibrating frame 200 is installed on the screen frame 11 and located below the woven screen 104, woven screen 107, perforated plate 103, or mesh 106. The vibrating frame 200 supports the woven screen 104, woven screen 107, perforated plate 103, and mesh 106 to prevent them from collapsing and losing their screening function.

[0034] More specifically, when the woven screen 104 is installed on the upper screen frame 111, the edge of the woven screen 104 in the length direction needs to be fastened to the inner wall of the screen box 10 by the fastening plate 300, and the edge of the woven screen 104 in the width direction needs to be pulled to the inner wall of the screen box 10 by the tensioning plate 400, so as to ensure that the woven screen 104 can be fully opened without collapsing; when the woven screen 107 is installed on the lower screen frame 112, the edge of the woven screen 107 in the length direction needs to be fastened to the inner wall of the screen box 10 by the fastening plate 300, and the edge of the woven screen 107 in the width direction needs to be pulled to the inner wall of the screen box 10 by the tensioning plate 400, so as to ensure that the woven screen 107 can be fully opened without collapsing.

[0035] Example 2:

[0036] A vibrating screen suitable for multiple working conditions has a structure similar to that of the vibrating screen suitable for multiple working conditions described in Example 1, except that:

[0037] Please see Figures 1-3 The multi-condition applicable vibrating screen includes an upper screen frame 111, a middle screen frame and a lower screen frame 112. The rear end of the screen box 10 is respectively provided with an upper discharge port, a middle discharge port and a lower discharge port corresponding to the upper screen frame 111, the middle screen frame and the lower screen frame 112.

[0038] Under normal operating conditions, the screen mesh of the multi-condition applicable vibrating screen can be configured as follows:

[0039] (1) The upper screen frame 111 performs primary screening: the first screen component is installed on the upper screen frame 111, and the first screen component is at least one of a grate screen 102 and a finger screen 101.

[0040] (2) The middle layer screen frame performs intermediate screening: a fifth screen piece or a sixth screen piece is installed on the middle layer screen frame. The fifth screen piece is a small finger screen 105, and the sixth screen piece is at least one of a woven screen 104 and a perforated plate 103.

[0041] (3) The lower screen frame 112 performs fine screening: the fourth screen component is installed on the lower screen frame 112, and the fourth screen component is at least one of woven screen 107 and plate screen 106.

[0042] In summary, by configuring different types of screens or screen combinations on the upper screen frame 111, the middle screen frame, and the lower screen frame 112, the multi-condition vibrating screen can be adapted to various working conditions, covering primary, intermediate, and fine screening.

[0043] Similarly, the fourth and sixth screen components are respectively matched with a vibrating frame 200. The vibrating frame 200 provides support. When the fourth or sixth screen component is installed on the screen frame 11, the vibrating frame 200 is installed on the screen frame 11 and located below the woven screen 104, the woven screen 107, the perforated plate 103, or the mesh 106. The vibrating frame 200 supports the woven screen 104, the woven screen 107, the perforated plate 103, and the mesh 106 to prevent them from collapsing and losing their screening function.

[0044] When the woven screen 104 is installed on the middle screen frame, the edge of the woven screen 104 along its length direction needs to be fastened to the inner wall of the screen box 10 by the fastening plate 300, and the edge of the woven screen 104 along its width direction needs to be tightened to the inner wall of the screen box 10 by the tensioning plate 400, so as to ensure that the woven screen 104 can be fully opened without collapsing. When the woven screen 107 is installed on the lower screen frame 112, the edge of the woven screen 107 along its length direction needs to be fastened to the inner wall of the screen box 10 by the fastening plate 300, and the edge of the woven screen 107 along its width direction needs to be tightened to the inner wall of the screen box 10 by the tensioning plate 400, so as to ensure that the woven screen 107 can be fully opened without collapsing.

[0045] The advantages of the multi-condition applicable vibrating screen provided in this embodiment include:

[0046] (1) Different types of screens can be installed and used on each layer of screen frame, and are easy to install and use;

[0047] (2) Each layer of screen frame can be configured with a variety of screens or screen combinations, so that the vibrating screen applicable to multiple working conditions can take into account a variety of application conditions, covering primary, intermediate and fine screening, and has good practicality, economy, functionality, reliability and applicability.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A vibrating screen suitable for multiple working conditions, characterized in that, The system includes a screen box (10) and at least two screen frames (11). The at least two screen frames (11) are spaced apart from top to bottom on the screen box (10). The screen box (10) has a feed inlet (12) at its front end and at least two discharge outlets (13) at its rear end. The discharge outlets (13) correspond one-to-one with the screen frames (11). Each screen frame (11) is equipped with at least one screen mesh (100). Each screen frame (11) can be configured with different types of screen meshes (100) or combinations of screen meshes (100). The screen box (10) is provided with a vibrator (20), which is driven by a driving device (21). The screen box (10) is also provided with a plurality of elastic elements (30), which are used to support the screen box (10) and transmit the excitation force of the vibrator (20). The multi-condition vibrating screen includes an upper screen frame (111) and a lower screen frame (112). The rear end of the screen box (10) is provided with an upper discharge port and a lower discharge port respectively corresponding to the upper screen frame (111) and the lower screen frame (112). When primary screening is required, a first screen component is installed on the upper screen frame (111), the first screen component being at least one of a grate screen (102) and a finger screen (101); when intermediate screening is required after primary screening, a second or third screen component is installed on the lower screen frame (112), the second screen component being a small finger screen (105), and the third screen component being at least one of a woven screen (104) and a perforated plate (103); when fine screening is required after primary screening, a fourth screen component is installed on the lower screen frame (112), the fourth screen component being at least one of a woven screen (107) and a plate screen (106).

2. The vibrating screen applicable to multiple working conditions as described in claim 1, characterized in that, The drive device (21) is a hydraulic motor or an electric motor.

3. The vibrating screen applicable to multiple working conditions as described in claim 1, characterized in that, The third screen and the fourth screen are respectively matched with a vibrating frame (200), and the vibrating frame (200) provides support.

4. The multi-condition applicable vibrating screen as described in any one of claims 1-2, characterized in that, The multi-condition vibrating screen also includes a middle screen frame, and the rear end of the screen box (10) is provided with a middle discharge port corresponding to the middle screen frame.

5. The vibrating screen applicable to multiple working conditions as described in claim 4, characterized in that, A fifth or sixth screen component is installed on the middle screen frame. The fifth screen component is a small finger screen (105), and the sixth screen component is at least one of a woven screen (104) and a perforated plate (103).

Images