Under-groove vibrating feeder

Abstract

The utility model belongs to the technical field of vibration screening, and particularly discloses an under-trough vibration screening device which comprises a bottom support, a screening trough is supported at the upper end of the bottom support, a vibration motor is arranged at the lower end of the screening trough, a screen is arranged in the screening trough, a first discharging port and a second discharging port are formed in the screening trough, and the first discharging port and the second discharging port are arranged on the bottom support. The second discharging port corresponds to the screen in position, a pushing mechanism is arranged at the upper end of the screen and comprises a telescopic unit and a comb-shaped pushing plate, the telescopic unit is connected with the comb-shaped pushing plate, and the comb-shaped pushing plate is arranged at the upper end of the screen. The thickness of the material surface of the vibrating screen can be effectively controlled by utilizing the comb-shaped push plate, the current situation of blanking blockage is solved, the screening effect is improved, smooth operation of a blast furnace is promoted, and the labor intensity of workers is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration screening, in particular to an under-trough vibration screening device. Background Art

[0002] The working principle of the vibrating screen is to use a vibration motor to drive the screen body to vibrate, so that the material on the screen moves to the end of the screen due to the inertial force, and the materials of different particle sizes are separated due to the difference in centrifugal force. On the screen of the vibrating screen, there are generally multiple layers of metal screens with different apertures superimposed. The apertures of these metal screens are different. Materials smaller than the aperture of the screen will pass through the screen, while materials larger than the aperture of the screen will not pass through the screen. When the material enters the screen box, it will be driven by the vibration motor to vibrate, and the screen will also vibrate due to the vibration. Materials of different particle sizes will move to the end of the screen due to the different inertial forces. The materials passing through the screen will be collected at one end, while the materials smaller than the aperture of the screen will fall to the lower layer, forming material layers of different particle sizes.

[0003] With the new sintering being put into production, the overall particle size of sintered ore becomes smaller, and the materials are screened into the furnace from the elevated silo through the gate and the ground-mounted vibrating screen. Due to the uneven particle size of the materials, if the gate is closed small, the large materials will cause blockage in the discharge of materials, and if the gate is opened wide, the thickness of the materials on the vibrating screen surface will be too thick, and the screening effect will be poor. At present, the parallel baffle distributor welded to the discharge port is difficult to control the thickness of the vibrating screen material surface. Utility Model Content

[0004] The utility model aims to provide an under-trough vibrating screener to solve the current situation of material discharge blockage.

[0005] In order to achieve the above purpose, the utility model provides an under-trough vibrating screener, which adopts the following technical solutions:

[0006] A vibrating screener under a trough comprises a bottom bracket, the upper end of the bottom bracket supports a screening trough, the lower end of the screening trough is provided with a vibration motor, a screen is provided in the screening trough, a first discharge port and a second discharge port are provided on the screening trough, the position of the second discharge port corresponds to the position of the screen, a pushing mechanism is provided at the upper end of the screen, the pushing mechanism comprises a telescopic unit and a comb-shaped push plate, the telescopic unit is connected to the comb-shaped push plate, and the comb-shaped push plate is provided at the upper end of the screen.

[0007] Preferably, a motor mounting plate is provided on the bottom bracket, and the vibration motor is mounted on the motor mounting plate.

[0008] Preferably, the comb-shaped push plate includes a connecting plate and a plurality of rods, the plurality of rods are parallel to each other and are evenly arranged in an array on the connecting plate, and the connecting plate is connected to the telescopic unit.

[0009] Preferably, the rod is a steel pipe.

[0010] Preferably, the telescopic unit is a hydraulic cylinder.

[0011] Preferably, a mounting plate is provided on the bottom bracket, a supporting base is provided on the mounting plate, and the telescopic unit is provided on the supporting base.

[0012] Preferably, a spring is fixed on the bottom bracket, and the upper end of the spring is connected to the screening trough.

[0013] Preferably, the number of the springs is four.

[0014] The beneficial effects of the utility model are as follows: according to the under-trough vibrating screener of the utility model, the existing parallel baffle distributor is improved, and a movable comb-shaped push plate is designed. The comb-shaped push plate is arranged on the filter screen and is parallel to the filter screen. Under the drive of the telescopic unit, it moves back and forth. The comb-shaped push plate can effectively control the thickness of the vibrating screen material surface, solves the current situation of material blockage, improves the screening effect, promotes the smooth operation of the blast furnace, and reduces the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0016] Figure 1 A top view of an under-trough vibrating screener according to an embodiment of the utility model is shown.

[0017] Figure 2 A front view of an under-trough vibrating screener according to an embodiment of the utility model is shown.

[0018] Figure 3 The present invention shows a structural diagram of a material pushing mechanism of an under-trough vibrating screener according to an embodiment of the utility model.

[0019] In the figure, 1 is a bottom bracket, 2 is a screening trough, 3 is a vibration motor, 4 is a screen, 5 is a first discharge port, 6 is a second discharge port, 7 is a pushing mechanism, 701 is a telescopic unit, 702 is a comb-shaped baffle, 7021 is a connecting plate, 7022 is a rod, 8 is a motor mounting plate, 9 is a mounting plate, 10 is a support base, and 11 is a spring. DETAILED DESCRIPTION

[0020] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The specific implementation of the utility model is further described in detail below in conjunction with the drawings and embodiments.

[0024] The utility model provides a vibrating screener under the trough, such as Figure 1 and 2 As shown, the under-trough vibrating screener includes a bottom bracket 1, the upper end of the bottom bracket 1 supports a screening trough 2, the lower end of the screening trough 2 is provided with a vibration motor 3, a screen 4 is provided in the screening trough 2, the screening trough 2 is provided with a first discharge port 5 and a second discharge port 6, the position of the second discharge port 6 corresponds to the position of the screen 4, the upper end of the screen 4 is provided with a pushing mechanism 7, the pushing mechanism 7 includes a telescopic unit 701 and a comb-shaped push plate 702, the telescopic unit 701 is connected to the comb-shaped push plate 702, and the comb-shaped push plate 702 is provided at the upper end of the screen 4.

[0025] In this embodiment, Figure 2As shown, the screening trough 2 is preferably arranged obliquely, and the screen 4 is preferably parallel to the bottom of the screening trough 2, so that the screening trough 2 as a whole is a double-layer structure, the first discharge port 5 is located in the lower layer, and the second discharge port 6 is arranged in the upper layer corresponding to the position of the screen 4. The material first falls on the screen 4, and under the action of the vibration motor 3, the material with a particle size larger than the aperture of the screen 4 is retained on the screen 4 and discharged from the second discharge port 6, and the material with a particle size smaller than the aperture of the screen 4 will fall to the bottom of the screening trough 2 and be discharged from the first discharge port 5, thereby achieving screening of the material.

[0026] The core improvement of the utility model over the commonly used vibrating screener is that a pushing mechanism 7 is provided. Specifically, a comb-shaped push plate 702 is arranged at the upper end of the screen 4. For example, the distance from the screen 4 can be set to 3-10 mm. Under the action of the telescopic unit 701, the comb-shaped push plate 702 can be telescopically moved back and forth. When the thickness of the material accumulated on the screen 4 is too high, the movable comb-shaped push plate 702 can break up the material to a certain extent, thereby reducing the thickness of the material and effectively controlling the thickness of the vibrating screen material surface. When the material thickness is reduced, with the vibration action of the vibration motor 3, the current situation of material blockage is solved, the screening effect is improved, the smooth operation of the blast furnace is promoted, and the labor intensity of the workers is reduced.

[0027] In some embodiments, a specific installation method of the vibration motor 3 is provided, such as Figure 1 As shown, a motor mounting plate 8 is provided on the bottom bracket 1 , and the vibration motor 3 is mounted on the motor mounting plate 8 .

[0028] In some embodiments, a specific structure of the comb-shaped push plate 702 is provided, such as Figure 3 As shown, the comb-shaped push plate 702 includes a connecting plate 7021 and a plurality of rods 7022 . The plurality of rods 7022 are arranged in parallel and uniformly in an array on the connecting plate 7021 . The connecting plate 7021 is connected to the telescopic unit 701 .

[0029] When the under-trough vibrating screener is working normally, the comb-shaped push plate 702 can be set at the upper end of the filter 4 so that the multiple rods 7022 can play the role of dividing the materials, that is, a material separation trough will be formed between the adjacent rods 7022 or the side rods 7022 and the screening trough 2, which can also avoid excessive accumulation of materials to a certain extent.

[0030] For example, the existing under-trough vibrating screener can be modified, that is, a pushing mechanism 7 is added, wherein the telescopic unit 701 is a device that can realize the telescopic movement of the connecting plate 7021. The element is commercially available and can be a hydraulic cylinder, an electric cylinder or a linear motor, etc. This embodiment is not specifically limited here. The rod 7022 can be made of steel pipes. Especially for steel mills, there are a large number of waste steel products, such as Ф40 steel pipes, Ф28 threaded steel, etc. After simple processing, the connecting plate and multiple rods can be obtained. The connecting plate and multiple rods are connected as shown in the following figure. Figure 3 The comb-shaped push plate can be obtained by welding the structure, which can greatly reduce the manufacturing cost of the comb-shaped push plate and the transformation cost is low.

[0031] In some embodiments, a specific installation method of the telescopic unit 701 is provided, such as Figure 2 As shown, a mounting plate 9 is disposed on the bottom bracket 1 , a support base 10 is disposed on the mounting plate 9 , and the telescopic unit 701 is disposed on the support base 10 .

[0032] In some embodiments, a spring 11 is fixed on the bottom bracket 1 , and the upper end of the spring 11 is connected to the screening trough 2 .

[0033] The spring 11 plays a shock-absorbing and buffering role to ensure the supporting stability of the bottom bracket 1. When the screening trough 2 is a rectangular structure, the spring 11 is preferably set to 4, which are respectively set at the four corners of the bottom of the screening trough 2 to ensure the connection stability.

[0034] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. A vibrating screener under the trough, characterized in that: It includes a bottom bracket, the upper end of which supports a screening trough, the lower end of which is provided with a vibration motor, a screen is provided in the screening trough, a first discharge port and a second discharge port are provided on the screening trough, the position of the second discharge port corresponds to the position of the screen, a pushing mechanism is provided at the upper end of the screen, the pushing mechanism includes a telescopic unit and a comb-shaped push plate, the telescopic unit is connected to the comb-shaped push plate, and the comb-shaped push plate is provided at the upper end of the screen.

2. The under-trough vibrating screener according to claim 1, characterized in that: A motor mounting plate is arranged on the bottom bracket, and the vibration motor is mounted on the motor mounting plate.

3. The under-trough vibrating screener according to claim 1, characterized in that: The comb-shaped push plate includes a connecting plate and a plurality of rods, wherein the plurality of rods are arranged on the connecting plate in parallel and in a uniform array, and the connecting plate is connected to the telescopic unit.

4. The under-trough vibrating screener according to claim 3, characterized in that: The rod is a steel pipe.

5. The under-trough vibrating screener according to claim 1, characterized in that: The telescopic unit is a hydraulic cylinder.

6. The under-trough vibrating screener according to claim 1, characterized in that: A mounting plate is arranged on the bottom bracket, a supporting base is arranged on the mounting plate, and the telescopic unit is arranged on the supporting base.

7. The under-trough vibrating screener according to claim 1, characterized in that: A spring is fixed on the bottom bracket, and the upper end of the spring is connected to the screening trough.

8. The under-trough vibrating screener according to claim 1, characterized in that: The number of the springs is 4.

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