Wear-resistant ore classification screen

Abstract

The utility model discloses a wear-resistant ore grading screen which comprises a frame body and a pressing frame. The steel bars, the long grooves and the short grooves are adopted, in the using process, personnel can place the steel bars in the long grooves and the short grooves at different positions according to different sizes of ore screening involved in the follow-up process, the steel bars are sequentially arranged in a staggered and stacked mode, and due to the fact that the distances between the steel bars are different, the steel bars are not prone to falling off. Due to the fact that the steel bars are different in gap, the generated gaps are different and can flexibly adapt to corresponding grading operation, the steel bars are of independent structures and can be used more flexibly, in the same way, only the corresponding steel bars need to be replaced when the steel bars are damaged, the maintenance degree is reduced, the structure can be used better, and the production efficiency is improved. And after the steel bars are adjusted, the steel bars can be extruded and fixed only by covering the surfaces with the pressing frames through the long blocks and the short blocks, so that the structure can be stably used, and the steel bar fixing device has the advantages of being convenient to install and maintain and adjustable in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of underground ore grading screens, in particular to a wear-resistant ore grading screen. Background Art

[0002] The existing underground ore grading screen is mainly made of two layers of hot-rolled square steel spliced ​​into a horizontal and vertical grid shape, and then welded. During the installation process, the square steel pre-buried holes are opened on the inner wall of the chute through precise measurement, and the square steel is installed into the pre-buried holes to form a horizontal and vertical grid shape of the upper and lower layers. The square steel is then welded, and finally the pre-buried holes are grouted as a whole with grouting materials. It can only be used after reaching the specified strength. When welding the square steel as a whole with welding materials, the long welding period causes a lot of waste of human resources; at the same time, ordinary hot-rolled square steel is used for welding, and its impact toughness and wear resistance are poor, resulting in a reduced lifespan during use and increased maintenance costs.

[0003] The publication number of the existing public technology is: CN204448494U. The wear-resistant integral ore grading screen for mining includes a screen unit, a base slope and a screen support device; the base slope is connected to the edge of the screen unit, the screen unit is installed at the opening at the top of the chute, the base slope is installed on the foundation slope around the chute opening, and the screen support device is installed on the inner wall of the chute and supports the screen unit. The wear-resistant integral ore grading screen for mining, the screen unit is integrally cast, the installation is simple and convenient, and has wear resistance and impact resistance. The screen support device installed at the bottom of the screen unit can effectively guide the impact force generated by the ore on the screen into the rock on the inner wall of the chute, further reducing the impact force generated by the ore on the screen, and the operation is reliable; the base slope evenly disperses the gravity of the transportation equipment on the screen base, prevents local damage to the base, and increases the service life of the base.

[0004] However, the above patent still has certain disadvantages when in use: the whole is cast as a whole, which results in the need to recast the grading screens of corresponding sizes when different screening types are involved, which limits the scope of application and increases the cost of use. In addition, when the grading screen structure is damaged, it needs to be replaced as a whole, which makes maintenance inconvenient and the maintenance cost high, and the overall use effect is not very ideal.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies in the prior art, the utility model provides a wear-resistant ore grading screen, which has the advantages of easy installation, convenient maintenance and adjustable structure, thereby solving the problems in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] In order to achieve the above advantages of convenient installation, convenient maintenance and adjustable structure, the specific technical solutions adopted by the utility model are as follows:

[0010] A wear-resistant ore grading screen comprises a frame and a compression frame, wherein a plurality of groups of short grooves and long grooves are symmetrically provided on the surface around the top of the frame, steel bars are clamped inside the short grooves and the long grooves, and the steel bars abut against each other, and the thickness of the steel bars inside the short grooves is less than that of the steel bars inside the long grooves, and a plurality of groups of grooves are provided on the surface of the steel bars.

[0011] Furthermore, a clamping frame is connected to the top of the frame body by fastening bolts, and the middle of the surface of the clamping frame and the middle of the surface of the frame body are both hollow structures.

[0012] Furthermore, a plurality of groups of threaded holes are symmetrically provided around the top of the frame.

[0013] Furthermore, fastening bolts are symmetrically threadedly connected around the top of the clamping frame.

[0014] Furthermore, a plurality of groups of short blocks and long blocks are symmetrically installed on the surface positions around the bottom of the compression frame.

[0015] Furthermore, the frame body and the pressing frame are both made of metal material.

[0016] Furthermore, rubber pads are provided at the bottom of the long blocks and the short blocks.

[0017] Furthermore, the short slot and the long slot have the same width.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the utility model provides a wear-resistant ore grading screen, which has the following beneficial effects:

[0020] (1) The utility model adopts steel bars, long slots and short slots. During use, personnel can place the steel bars in different positions of the long slots and the internal positions of the short slots according to the different sizes of the ore screening involved in the subsequent screening, so as to realize the staggered stacking of the steel bars. At this time, due to the different spacings between the steel bars, the gaps generated by the staggering are also different, so it can be flexibly adjusted to adapt to the corresponding grading operations. In addition, the steel bars are independent structures, so they can be used more flexibly. Similarly, when damage occurs, only the corresponding steel bars need to be replaced, which reduces the degree of maintenance and enables the structure to be better used. After the steel bars are adjusted, only the compression frame needs to be covered on the surface, and the steel bars can be squeezed and fixed by the long blocks and short blocks, so that the structure can be used stably. It has the advantages of convenient installation, convenient maintenance and adjustable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the structure of a wear-resistant ore grading screen proposed by the utility model;

[0023] Figure 2 It is a schematic diagram of the connection between the steel bar and the frame of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the steel bar of the utility model;

[0025] Figure 4 It is a schematic diagram of an embodiment of the steel bar of the utility model.

[0026] In the figure:

[0027] 1. Frame; 2. Short slot; 3. Long slot; 4. Threaded hole; 5. Steel bar; 6. Pressing frame; 7. Long block; 8. Short block; 9. Fastening bolts. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the utility model, a wear-resistant ore grading screen is provided.

[0030] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, a wear-resistant ore grading screen according to an embodiment of the utility model includes a frame body 1 and a clamping frame 6, and a plurality of groups of short grooves 2 and long grooves 3 are symmetrically opened on the surface positions around the top of the frame body 1, and steel bars 5 are clamped inside the short grooves 2 and the long grooves 3, and the steel bars 5 are abutted against each other, and the thickness of the steel bars 5 inside the short grooves 2 is less than the steel bars 5 inside the long grooves 3, and a plurality of groups of grooves are opened on the surface of the steel bars 5.

[0031] In one embodiment, a compression frame 6 is connected to the top of the frame 1 by fastening bolts 9. The middle of the surface of the compression frame 6 and the middle of the surface of the frame 1 are both hollow structures. The hollow structure is provided to facilitate the sorting of ore.

[0032] In one embodiment, a plurality of groups of threaded holes 4 are symmetrically formed around the top of the frame 1 .

[0033] In one embodiment, fastening bolts 9 are symmetrically threadedly connected around the top of the clamping frame 6. The fastening bolts 9 and the threaded holes 4 are provided to ensure that the clamping frame 6 can be smoothly attached to the surface of the frame body 1, thereby achieving a limiting operation on the steel bar 5 and improving stability in use.

[0034] In one embodiment, a plurality of groups of short blocks 8 and long blocks 7 are symmetrically installed on the surface positions around the bottom of the compression frame 6. The short blocks 8 and the long blocks 7 are provided to compress the steel bar 5 after it is placed in the short groove 2 and the long groove 3, thereby ensuring that the steel bar 5 can still be used stably during subsequent ore impact. At the same time, since the area used by the frame 1 is in a closed state on all sides, the long groove 3 and the short groove 2 are not provided with a blocking structure. Similarly, when the surroundings are open, the long groove 3 and the short groove 2 must be set to a closed state on the sides, thereby ensuring that the steel bar 5 will not detach from the side.

[0035] In one embodiment, the frame 1 and the pressing frame 6 are both made of metal material, and the metal material ensures the strength of the structure.

[0036] In one embodiment, rubber pads are provided at the bottom of the long blocks 7 and the short blocks 8. The rubber pads are provided to provide a certain buffering effect between the long blocks 7 and the short blocks 8 and the steel bars 5 to avoid structural damage caused by hard impact.

[0037] In one embodiment, the short slot 2 and the long slot 3 have the same width, and the width is set to ensure that the steel bars 5 used have the same width to facilitate subsequent coordinated use.

[0038] Working principle: In actual use, personnel can place the steel bars 5 in the internal positions of the long slots 3 and the short slots 2 at different positions according to the different sizes of ore screening involved in the subsequent process, so as to realize the staggered stacking of the steel bars 5 in turn. At this time, due to the different spacings between the steel bars 5, the gaps generated by the staggering are also different, so they can be flexibly adjusted to adapt to the corresponding grading operation, and the steel bars 5 are independent structures, so they can be used more flexibly. Similarly, when damage occurs, only the corresponding steel bars 5 need to be replaced, which reduces the degree of maintenance and enables the structure to be better used. Moreover, the depth of the long slots 3 is greater than the depth of the short slots 2, so that the steel bars 5 can be smoothly docked. At the same time, the surface of the steel bars 5 is also grooved, so that they can be connected to each other when stacked on each other, thereby improving the stability of the connection. After the steel bars 5 are adjusted, only the compression frame 6 needs to be covered on the surface, and the steel bars 5 can be squeezed and fixed by the long blocks 7 and the short blocks 8, so that the structure can be used stably. The device as a whole has the advantages of convenient installation, convenient maintenance and adjustable structure.

[0039] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and is 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. A wear-resistant ore grading screen, comprising a frame (1) and a pressing frame (6), characterized in that: The frame (1) has a plurality of groups of short grooves (2) and long grooves (3) symmetrically formed on the surface of the four sides of the top thereof; the short grooves (2) and the long grooves (3) are both internally clamped with steel bars (5), and the steel bars (5) are mutually abutted; the thickness of the steel bars (5) in the short grooves (2) is smaller than that of the steel bars (5) in the long grooves (3); and the surface of the steel bars (5) is provided with a plurality of groups of grooves.

2. The wear-resistant ore grading screen according to claim 1, characterized in that: The top position of the frame body (1) is connected to a clamping frame (6) via a fastening bolt (9); the middle of the surface of the clamping frame (6) and the middle of the surface of the frame body (1) are both hollow structures.

3. The wear-resistant ore grading screen according to claim 1, characterized in that: A plurality of groups of threaded holes (4) are symmetrically provided around the top of the frame (1).

4. The wear-resistant ore grading screen according to claim 1, characterized in that: The top of the clamping frame (6) is symmetrically threadedly connected with fastening bolts (9) at four locations.

5. The wear-resistant ore grading screen according to claim 1, characterized in that: A plurality of groups of short blocks (8) and long blocks (7) are symmetrically mounted on the surface positions around the bottom of the compression frame (6).

6. The wear-resistant ore grading screen according to claim 1, characterized in that: The frame body (1) and the pressing frame (6) are both made of metal material.

7. The wear-resistant ore grading screen according to claim 5, characterized in that: Rubber pads are provided at the bottom of the long block (7) and the short block (8).

8. The wear-resistant ore grading screen according to claim 1, characterized in that: The short groove (2) and the long groove (3) have the same width.

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