Screening device for mineral production

Abstract

The utility model relates to the technical field of mineral production, in particular to a screening device for mineral production, which comprises a rack, a screening bin is movably mounted at the top of the rack, a first screening net is fixedly mounted in the screening bin, and a frame is fixedly mounted at the top of the first screening net. And a second screening net is fixedly mounted at the top of the frame body, and a bin cover is fixedly mounted at the top of the screening bin. According to the screening device for mineral substance production, when the screening device is used, an air inlet pipe is communicated with a conveying pipeline of an air compressor, an air inlet valve is opened, compressed air can be sprayed to materials blocked in a first screening net and a second screening net along a nozzle, and therefore the purpose of automatically cleaning the screening nets is achieved; the problems that a screening net is prone to being blocked in the using process, manual cleaning is needed, and the mineral substance production efficiency is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral production, in particular to a screening device for mineral production. Background Art

[0002] Minerals refer to chemical elements or their compounds that exist naturally on Earth and in the form of inorganic compounds in the Earth's crust. They are widely distributed in nature, including metals, non-metals, rare elements and radioactive elements, etc., and constitute an important part of rocks, soil, water and organisms. Limestone is a common mineral. Screening equipment is required for limestone screening during production.

[0003] The existing screening device is provided with a screening net inside, and the screening net is prone to clogging during use and needs to be manually cleaned, which reduces the mineral production efficiency. Therefore, a screening device for mineral production is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a screening device for mineral production, which has the advantages of automatic cleaning of the screening net, etc., and solves the problem that the screening net is easily blocked during use and needs to be manually cleaned, thereby reducing the efficiency of mineral production.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening device for mineral production, comprising a frame, a screening bin is movably installed on the top of the frame, a first screening net is fixedly installed inside the screening bin, a frame is fixedly installed on the top of the first screening net, a second screening net is fixedly installed on the top of the frame, a bin cover is fixedly installed on the top of the screening bin, and a back-blowing mechanism for automatically cleaning the screening net is arranged inside the frame.

[0006] Furthermore, the back-blowing mechanism includes a hollow splint, a discharge barrel, a nozzle, an air inlet pipe and an air inlet valve. The interior of the frame is plugged with a hollow splint with one end penetrating through and extending to the left side of the screening bin. A plurality of discharge barrels are embedded in the top of the hollow splint. The discharge barrels penetrate through and extend to the bottom of the hollow splint. A nozzle is connected at the top of the hollow splint and located between the plurality of discharge barrels. The left side of the hollow splint is connected to the air inlet pipe, and an air inlet valve is provided on the outer peripheral wall of the air inlet pipe.

[0007] Furthermore, the top and the bottom of the frame are both provided with discharge holes, and the discharge holes match the discharge barrel.

[0008] Furthermore, a fixing mechanism is provided on the left side of the screening bin, and the fixing mechanism includes a fixing plate, a threaded rod and a fixing nut. Two fixing plates are fixedly installed on the left end of the bottom of the hollow splint, and two threaded rods are fixedly installed on the left side of the screening bin and below the hollow splint. One end of the threaded rod passes through and extends to the left side of the fixing plate, and the outer peripheral wall of the threaded rod and the left and right sides of the fixing plate are threadedly connected with fixing nuts.

[0009] Furthermore, the top left end of the bin cover is connected to a feed hopper, the bottom right end of the screening bin is connected to a first discharge hopper and a second discharge hopper, a partition is provided between the first discharge hopper and the second discharge hopper, and the first screening net is fixedly installed on the top of the partition.

[0010] Furthermore, a through hole is opened on the left side of the screening bin, and the through hole matches the hollow splint.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0012] The screening device for mineral production, through the back-blowing mechanism and the fixing mechanism, when in use, connects the air intake pipe with the delivery pipeline of the air compressor, opens the air intake valve, and the compressed gas can be sprayed along the nozzle to the materials blocked in the first screening net and the second screening net. In this way, the purpose of automatically cleaning the screening net is achieved, and the problem that the screening net is easily blocked during use and needs to be manually cleaned is solved, which reduces the efficiency of mineral production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a front view of the utility model;

[0015] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 The utility model is a schematic diagram of the back-blowing mechanism structure.

[0017] In the figure: 1 frame, 2 screening bin, 21 first discharge hopper, 22 partition, 23 second discharge hopper, 3 first screening net, 4 frame, 5 second screening net, 6 bin cover, 61 feed hopper, 7 backblowing mechanism, 71 hollow splint, 72 discharge barrel, 73 nozzle, 74 air inlet pipe, 75 air inlet valve, 8 fixing mechanism, 81 fixing plate, 82 threaded rod, 83 fixing nut. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4 A screening device for mineral production in this embodiment includes a frame 1, a screening bin 2 is movably installed on the top of the frame 1, a vibration motor is fixedly installed on the bottom of the screening bin 2, a first screening net 3 is fixedly installed inside the screening bin 2, a frame 4 is fixedly installed on the top of the first screening net 3, a second screening net 5 is fixedly installed on the top of the frame 4, a bin cover 6 is fixedly installed on the top of the screening bin 2, and a backblowing mechanism 7 for automatically cleaning the screening net is arranged inside the frame 4.

[0020] In this embodiment, the back-blowing mechanism 7 includes a hollow splint 71, a discharge barrel 72, a nozzle 73, an air inlet pipe 74 and an air inlet valve 75. The frame 4 is internally plugged with a hollow splint 71 having one end penetrating through and extending to the left side of the screening bin 2. A plurality of discharge barrels 72 are embedded on the top of the hollow splint 71. The discharge barrels 72 penetrate and extend to the bottom of the hollow splint 71. The top of the hollow splint 71 and between the plurality of discharge barrels 72 are connected with a nozzle 73. The left side of the hollow splint 71 is connected with an air inlet pipe 74. The outer peripheral wall of the air inlet pipe 74 is provided with an air inlet valve 75.

[0021] The top and bottom of the frame 4 are provided with feeding holes, which match the feeding barrel 72;

[0022] A fixing mechanism 8 is provided on the left side of the screening bin 2, and the fixing mechanism 8 includes a fixing plate 81, a threaded rod 82 and a fixing nut 83. Two fixing plates 81 are fixedly installed on the left end of the bottom of the hollow splint 71, and two threaded rods 82 are fixedly installed on the left side of the screening bin 2 and below the hollow splint 71. One end of the threaded rod 82 penetrates and extends to the left side of the fixing plate 81, and the outer peripheral wall of the threaded rod 82 and the left and right sides of the fixing plate 81 are threadedly connected with fixing nuts 83.

[0023] Specifically, when the discharge barrel 72 is aligned with the discharge holes on the upper and lower sides, the material with the required particle size can enter the discharge barrel 72 along the second screening net 5, and then be discharged from the first screening net 3 by the discharge barrel 72, and the material with larger particle size falls from the right side of the second screening net 5, thereby realizing the screening operation of the material; when the first screening net 3 and the second screening net 5 are blocked, the fixing nuts 83 on both sides are loosened, and the hollow splint 71 is pulled to the left. When the nozzle 73 is aligned with the discharge holes on the upper and lower sides, the fixing nuts 83 on both sides are tightened to fix the hollow splint 71, and the air inlet pipe 74 is connected to the conveying pipeline of the air compressor. The air inlet valve 75 is opened, and the compressed gas can be sprayed along the nozzle 73 to the blocked materials in the first screening net 3 and the second screening net 5. In this way, the purpose of automatically cleaning the screening net is achieved.

[0024] In this embodiment, the top left end of the bin cover 6 is connected to a feed hopper 61, the bottom right end of the screening bin 2 is connected to a first discharge hopper 21 and a second discharge hopper 23, a partition 22 is arranged between the first discharge hopper 21 and the second discharge hopper 23, and the first screening net 3 is fixedly mounted on the top of the partition 22.

[0025] Specifically, the first discharge hopper 21 can discharge materials with appropriate particle sizes, and the second discharge hopper 23 can discharge materials with larger particle sizes.

[0026] In this embodiment, a through hole is opened on the left side of the screening bin 2 , and the through hole matches the hollow clamping plate 71 .

[0027] Specifically, the hollow clamping plate 71 can slide left and right through the provided through hole.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening device for mineral production, comprising a frame (1), a screening bin (2) movably mounted on the top of the frame (1), a first screening net (3) fixedly mounted inside the screening bin (2), a frame (4) fixedly mounted on the top of the first screening net (3), a second screening net (5) fixedly mounted on the top of the frame (4), and a bin cover (6) fixedly mounted on the top of the screening bin (2), characterized in that: A back-blowing mechanism (7) for automatically cleaning the screening net is arranged inside the frame (4).

2. A screening device for mineral production according to claim 1, characterized in that: The back-blowing mechanism (7) comprises a hollow splint (71), a material discharge barrel (72), a nozzle (73), an air intake pipe (74) and an air intake valve (75); a hollow splint (71) having one end penetrating through and extending to the left side of the screening bin (2) is inserted into the interior of the frame (4); a plurality of material discharge barrels (72) are embedded in the top of the hollow splint (71); the material discharge barrels (72) penetrate through and extend to the bottom of the hollow splint (71); a nozzle (73) is connected at the top of the hollow splint (71) and between the plurality of material discharge barrels (72); an air intake pipe (74) is connected to the left side of the hollow splint (71); and an air intake valve (75) is provided on the outer peripheral wall of the air intake pipe (74).

3. A screening device for mineral production according to claim 2, characterized in that: The top and bottom of the frame (4) are both provided with material discharge holes, and the material discharge holes match the material discharge barrel (72).

4. A screening device for mineral production according to claim 2, characterized in that: A fixing mechanism (8) is provided on the left side of the screening bin (2), the fixing mechanism (8) comprising a fixing plate (81), a threaded rod (82) and a fixing nut (83); two fixing plates (81) are fixedly mounted on the left end of the bottom of the hollow clamping plate (71); two threaded rods (82) are fixedly mounted on the left side of the screening bin (2) and below the hollow clamping plate (71); one end of the threaded rod (82) penetrates and extends to the left side of the fixing plate (81); and fixing nuts (83) are threadedly connected to the outer peripheral wall of the threaded rod (82) and on both the left and right sides of the fixing plate (81).

5. A screening device for mineral production according to claim 1, characterized in that: The top left end of the bin cover (6) is connected to a feed hopper (61), the bottom right end of the screening bin (2) is connected to a first discharge hopper (21) and a second discharge hopper (23), a partition (22) is provided between the first discharge hopper (21) and the second discharge hopper (23), and the first screening net (3) is fixedly mounted on the top of the partition (22).

6. A screening device for mineral production according to claim 2, characterized in that: A through hole is provided on the left side of the screening bin (2), and the through hole matches the hollow clamping plate (71).

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