Improved ore storage bin grizzly screen device

Abstract

The utility model discloses an improved ore storage bin grizzly screen device which comprises a machine frame, a screen frame assembly is installed on the machine frame, screen bars are installed in the screen frame assembly in a transversely and longitudinally staggered mode, and storage grooves are formed in the screen bars. The novel grizzly screen has the advantages that the novel grizzly screen is simple in structure, the storage grooves are formed in the grate bars, falling ores are stored in the storage grooves, so that a natural ore abrasion-resistant layer is formed, abrasion resistance is greatly improved, meanwhile, the novel grizzly screen has the function of double-face turnover use and the function of replacing the grate bars, and the novel grizzly screen is convenient to use. The use is flexible and convenient, and the service life of the grizzly is greatly prolonged, so that the cost is saved, and the normal production is ensured.

Description

Technical field:

[0001] The utility model relates to the technical field of grating screens, in particular to an improved ore bin grating screen device. Background technology:

[0002] The ore bin grid screen is a kind of fixed screen, which is installed on the top of the ore bin, with the screen bars connected together horizontally and vertically. The function of the grid screen is to prevent large pieces of ore from falling into the ore bin, thereby preventing the ore bin from being blocked. During use, the ore has a greater impact on the grid screen, causing the screen bars to be worn and become thinner. When the screen bars are too thin to withstand the impact of heavy objects, they will be deformed and broken. The maintenance or replacement of the new grid screen requires a large amount of work and is costly, which seriously affects the production efficiency of the ore dressing plant. Utility model content:

[0003] The utility model aims to provide an improved ore bin grid screen device to solve the technical problem of low service life of the grid screen in the prior art.

[0004] The utility model discloses an improved ore bin grid screen device, which comprises a frame, a screen frame assembly is installed on the frame, screen bars are installed in a horizontal and vertical staggered manner in the screen frame assembly, and a material storage trough is arranged on the screen bars.

[0005] Furthermore, the cross section of the screen bar is H-shaped.

[0006] Furthermore, the screen bars are made of high manganese steel.

[0007] Furthermore, the screen frame assembly includes, from top to bottom, an upper screen frame, a screen frame, and a lower screen frame connected by bolts.

[0008] Furthermore, both ends of the screen bar are connected with mounting shafts, and half holes are opened on the upper screen frame, the screen frame and the lower screen frame, and the mounting shafts are located in the half holes.

[0009] Furthermore, a rotating shaft is installed on both sides of the screen frame assembly, and a load-bearing screw is arranged on both sides of the rotating shaft. A threaded through hole is opened on the frame, and the load-bearing screw is threaded in the threaded through hole, and the end of the load-bearing screw is in contact with the bottom of the screen frame assembly.

[0010] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and a storage trough is arranged on the screen bars, so that the fallen ore is stored in the storage trough, thereby forming a natural ore wear-resistant layer, which greatly improves the wear resistance. At the same time, the grid screen of the utility model has the function of double-sided flipping and the function of replacing the screen bars. It is flexible and convenient to use, and the service life of the grid screen is greatly improved, thereby saving costs and ensuring the normal production. Description of the drawings:

[0011] Figure 1 It is a three-dimensional diagram of the utility model;

[0012] Figure 2 It is a three-dimensional diagram of the installation structure of the screen frame assembly and the screen bars;

[0013] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0014] Figure 4 A three-dimensional diagram of the screen bar;

[0015] In the figure, there are a frame 1, a screen frame 2, an upper screen frame 3, a lower screen frame 4, screen bars 5, a material storage trough 6, a mounting shaft 7, a load-bearing screw 8, and a half hole 9. Specific implementation method:

[0016] like Figure 1 and Figure 4 As shown, an improved ore bin screen device comprises a frame 1, a screen frame assembly is installed on the frame 1, screen bars 5 are installed in the screen frame assembly in a horizontal and vertical staggered manner, and a storage trough 6 is arranged on the screen bars 5, the storage trough 6 is used to store ore, thereby forming a natural ore wear-resistant layer; the cross-section of the screen bar 5 is H-shaped; the screen bar 5 is made of high manganese steel.

[0017] like Figure 2 and Figure 3 As shown, in order to facilitate the removal of the screen bar 5, the screen frame assembly includes, from top to bottom, an upper screen frame 3, a screen frame 2, and a lower screen frame 4 connected by bolts; installation shafts 7 are connected to both ends of the screen bar 5, and half holes 9 are opened on the upper screen frame 3, the screen frame 2, and the lower screen frame 4, and the installation shaft 7 is located in the half hole 9.

[0018] like Figure 1 As shown, in order to facilitate the flipping of the screen frame assembly and achieve double-sided use, rotating shafts are installed on both sides of the screen frame assembly, and load-bearing screws 8 are arranged on both sides of the rotating shaft. A threaded through hole is opened on the frame 1, and the load-bearing screw 8 is screwed into the threaded through hole. The end of the load-bearing screw 8 contacts the bottom of the screen frame assembly.

[0019] During specific operation, the fallen ore is stored in the storage trough 6 to form a natural ore wear-resistant layer, which greatly improves the wear resistance. After a certain period of use, the screen frame assembly can be flipped over to achieve double-sided use (when flipping, the load-bearing screw 8 can be screwed out, and then the screen frame assembly is flipped 180°, and then the load-bearing screw 8 can be screwed in again so that it is located under the screen frame assembly to bear the load). When the screen bar 5 needs to be replaced, the upper screen frame 3 or the lower screen frame 4 can be removed to replace a single screen bar 5.

[0020] The above are only preferred examples of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An improved ore bin screen device, characterized in that: It comprises a frame (1), on which a screen frame assembly is mounted, in which screen bars (5) are mounted in a horizontal and vertically staggered manner, and on which a material storage trough (6) is arranged.

2. An improved ore bin screen device according to claim 1, characterized in that: The cross section of the screen bar (5) is H-shaped.

3. An improved ore bin screen device according to claim 1, characterized in that: The screen bars (5) are made of high manganese steel.

4. The improved ore bin screen device according to claim 1, characterized in that: The screen frame assembly comprises, from top to bottom, an upper screen frame (3), a screen frame (2), and a lower screen frame (4) which are connected by bolts.

5. An improved ore bin screen device according to claim 4, characterized in that: Both ends of the screen bar (5) are connected with a mounting shaft (7), and half holes (9) are opened on the upper screen frame (3), the screen frame (2), and the lower screen frame (4), and the mounting shaft (7) is located in the half hole (9).

6. The improved ore bin screen device according to claim 1, characterized in that: A rotating shaft is installed on both sides of the screen frame assembly, and a load-bearing screw (8) is arranged on both sides of the rotating shaft. A threaded through hole is opened on the frame (1), and the load-bearing screw (8) is screwed into the threaded through hole. The end of the load-bearing screw (8) contacts the bottom of the screen frame assembly.

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