Simple dirty coal separation fixed screen

Abstract

The utility model discloses a simple dirty and miscellaneous coal separation fixed screen which comprises a fixed frame, the fixed frame is obliquely arranged, a plurality of screen bars are evenly installed on the inner side of the fixed frame, side plates are fixedly connected to the two sides of the fixed frame, positioning steel pipes are fixedly connected to the sides, away from each other, of the two side plates, and one ends of the two positioning steel pipes are jointly connected with a bearing steel pipe. A first supporting leg, a second supporting leg and a third supporting leg are sequentially and fixedly connected to the inclined face of the bottom end of the positioning steel pipe, the lengths of the first supporting leg, the second supporting leg and the third supporting leg are gradually reduced, and transverse pipes are additionally arranged among the first supporting leg, the second supporting leg and the third supporting leg. Impurities and gangues with the granularity larger than 80 mm can be effectively screened out, the sorting effect is good, use is convenient, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine production, in particular to a simple dirty and miscellaneous coal separation fixed screen. Background Art

[0002] As the mining depth of the mine increases, the geological conditions become more and more complex. There is an increasing amount of dirty coal in the excavation, expansion and landing of coal mines. The dirty coal is of low grade and poor quality, and contains a large amount of accompanying materials: gangue of different particle sizes, wood blocks and concrete blocks, etc. The existing manual picking method is time-consuming and labor-intensive, and the efficiency is too low, or temporary screens are built, and the structure is not stable enough;

[0003] Therefore, those skilled in the art provide a simple dirty coal separation fixed screen to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a simple dirty and miscellaneous coal separation fixed screen.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A simple dirty coal separation fixed screen comprises a fixed frame, and the fixed frame is arranged obliquely, a plurality of screen bars are evenly installed on the inner side of the fixed frame, side plates are fixedly connected on both sides of the fixed frame, two side plates are fixedly connected with positioning steel pipes on the sides away from each other, one end of the two positioning steel pipes is commonly connected with a receiving steel pipe, the bottom end inclined surface of the positioning steel pipe is successively fixed with a first supporting leg, a second supporting leg and a third supporting leg of gradually decreasing length, and a transverse tube is added between the first supporting leg, the second supporting leg and the third supporting leg.

[0007] Preferably, a plurality of screen bars are arranged in sequence with a gap of 80 mm, and the screen bars are metal rods with a diameter of 16 mm.

[0008] Preferably, two supporting rods are fixedly connected to the bottom ends of the screen bars on the inner side of the fixing frame, and the screen bars and the supporting rods are connected by spot welding.

[0009] Preferably, a connecting pipe is fixedly connected between the two third supporting legs, a blocking net is arranged between the two third supporting legs, and the blocking net is located below the inclined surface of the fixing frame.

[0010] Preferably, a first reinforcing steel tube is connected between the first supporting leg and the positioning steel tube on the same side, and a second reinforcing tube is installed between the first reinforcing steel tube and the first supporting leg.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The dirty coal screening device designed by the utility model has a simple structure and has certain strength and stability. It can effectively screen out debris and gangue with a particle size of more than 80mm, has a good sorting effect, is easy to use, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more specifically and intuitively illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 This is a schematic diagram of a simple dirty coal separation fixed screen structure proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the connecting pipe installation structure proposed by the utility model.

[0016] In the figure: 1. fixed frame; 2. screen bars; 3. side plates; 4. positioning steel pipes; 5. receiving steel pipes; 6. first supporting legs; 7. second supporting legs; 8. third supporting legs; 9. cross pipes; 10. supporting rods; 11. connecting pipes; 12. retaining nets; 13. first reinforcing steel pipes; 14. second reinforcing steel pipes. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Reference Figure 1-2 A simple dirty coal separation fixed screen comprises a fixed frame 1, and the fixed frame 1 is tilted, a plurality of screen bars 2 are evenly installed on the inner side of the fixed frame 1, side plates 3 are fixedly connected to both sides of the fixed frame 1, and the two side plates 3 are fixedly connected to the sides away from each other with positioning steel pipes 4, one end of the two positioning steel pipes 4 is commonly connected with a receiving steel pipe 5, and the inclined surface of the bottom end of the positioning steel pipe 4 is fixedly connected with a first supporting leg 6, a second supporting leg 7 and a third supporting leg 8 of gradually decreasing lengths in sequence, and a transverse pipe 9 is added between the first supporting leg 6, the second supporting leg 7 and the third supporting leg 8;

[0019] The technical scheme adopted above is that the device adopts a circular tube structure including a positioning steel pipe 4, a receiving steel pipe 5, and supporting legs to form a frame, so that the fixed frame 1 and the screen bar 2 are in an inclined state and raised to a certain height. The dirty coal can be classified and screened through the screen bar 2. The smaller ones fall into the inner space of the frame through the screen bar 2, and the larger ones roll along the inclined surface of the screen bar 2 to the outside of one end thereof. The device has a simple structure and good structural stability, which is convenient for the screening of dirty coal.

[0020] Several screen bars 2 are arranged in sequence with a gap of 80 mm, and the screen bars 2 are metal rods with a diameter of 16 mm;

[0021] The above-mentioned technical solution has a good effect on the separation of dirty coal in inclined shafts and can effectively screen out debris and gangue with a particle size of more than 80mm.

[0022] Two supporting rods 10 are fixedly connected to the bottom of the screen bar 2 on the inner side of the fixed frame 1, and the screen bar 2 and the supporting rod 10 are connected by spot welding;

[0023] The above-mentioned technical solution and the arrangement of the support rod 10 can enhance the stability and strength of the installation of the screen bar 2, improve the supporting force of the screen bar 2, and avoid the accident of the screen bar 2 being broken due to the force on the middle part.

[0024] A connecting pipe 11 is fixedly connected between the two third supporting legs 8, and a blocking net 12 is arranged between the two third supporting legs 8, and the blocking net 12 is located below the inclined surface of the fixed frame 1;

[0025] In the technical solution adopted above, the barrier net 12 is provided to isolate the screened debris and the coal in the frame to prevent the two from mixing.

[0026] A first reinforcing steel pipe 13 is connected between the first supporting leg 6 and the positioning steel pipe 4 on the same side, and a second reinforcing pipe 14 is installed between the first reinforcing steel pipe 13 and the first supporting leg 6;

[0027] In the above technical solution, the arrangement of the first reinforcing tube 14 and the second reinforcing tube 13 can greatly improve the stability and strength of the entire frame.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A simple dirty coal separation fixed screen, comprising a fixed frame (1), wherein the fixed frame (1) is arranged tilted, and characterized in that: A plurality of sieve bars (2) are evenly installed on the inner side of the fixed frame (1); side plates (3) are fixedly connected to both sides of the fixed frame (1); positioning steel pipes (4) are fixedly connected to the sides of the two side plates (3) that are far away from each other; one end of the two positioning steel pipes (4) is commonly connected to a receiving steel pipe (5); the bottom inclined surface of the positioning steel pipe (4) is successively fixedly connected to a first supporting leg (6), a second supporting leg (7) and a third supporting leg (8) of gradually decreasing length; a transverse pipe (9) is additionally provided between the first supporting leg (6), the second supporting leg (7) and the third supporting leg (8).

2. A simple dirty coal separation fixed screen according to claim 1, characterized in that: A plurality of screen bars (2) are arranged in sequence with a gap of 80 mm, and the screen bars (2) are metal rods with a diameter of 16 mm.

3. A simple dirty coal separation fixed screen according to claim 1, characterized in that: Two support rods (10) are fixedly connected to the bottom ends of the screen bars (2) on the inner side of the fixed frame (1), and the screen bars (2) and the support rods (10) are connected by spot welding.

4. A simple dirty coal separation fixed screen according to claim 1, characterized in that: A connecting pipe (11) is fixedly connected between the two third supporting legs (8), a blocking net (12) is arranged between the two third supporting legs (8), and the blocking net (12) is located below the inclined surface of the fixed frame (1).

5. The simple dirty coal separation fixed screen according to claim 1 is characterized in that: A first reinforcing steel pipe (13) is connected between the first supporting leg (6) and the positioning steel pipe (4) located on the same side, and a second reinforcing steel pipe (14) is installed between the first reinforcing steel pipe (13) and the first supporting leg (6).

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