Mine waste fine sand screening device
By setting up a bidirectional lead screw and a drive motor in the mine waste fine sand screening device, the screen is moved up and down along the lead screw, which solves the problem of easy clogging of the screen and short screening time, and realizes complete transparency and efficient screening of the fine sand.
Patent Information
- Application Number
- CN202421334760.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-12
AI Technical Summary
In the existing mine waste fine sand screening device, the screen is easily blocked, and the waste is retained on the screen for a short time, resulting in some qualified fine sand not being able to pass through the screen, affecting the screening effect.
By providing a bidirectional lead screw and a driving motor in the screening device, the middle part of the screen is moved up and down along the bidirectional lead screw, forcing the screen to deformation, thereby avoiding waste blockage and prolonging the screening time, so that fine sand can completely penetrate the screen.
It effectively avoids waste blockage, extends the screening time of waste on the screen, ensures that all fine sand passes through the screen, and improves the screening effect.
Smart Images
Figure CN222805540U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine waste processing, in particular to a mine waste fine sand screening device. Background Art
[0002] During the mining process, a large amount of crushed stone waste is generated. If it is directly discarded, it will not only waste resources but also cause pollution. It is usually crushed to make sand, but because it is mixed with a large amount of crushed stone, it needs to be screened.
[0003] In the related art, the crushed waste is usually placed directly on a screen, which is tilted at a certain angle, and qualified fine sand is separated by gravity. However, in the above process, since the screen is fixed, the waste is easy to clog the screen, and the waste stays on the screen for a short time. Some qualified fine sand does not have time to pass through the screen, thereby affecting the screening effect of the screen. Utility Model Content
[0004] The utility model aims to solve one of the technical problems in the above-mentioned technology at least to a certain extent.
[0005] To this end, one purpose of the utility model is to propose a device for screening fine sand of mine waste, by which the middle part of the screen moves up and down along the bidirectional lead screw, forcing the screen to deform, which not only prevents the waste from clogging the screen, but also prolongs the screening time of the waste on the screen, so that all the fine sand can pass through the screen, thereby ensuring the screening effect of the device.
[0006] To achieve the above-mentioned purpose, the utility model proposes a mine waste fine sand screening device in the first aspect, comprising: a shell and a screening mechanism, wherein a feed port is provided on the upper part of the shell, and a discharge port is provided on the bottom of the shell; the screening mechanism comprises a bidirectional lead screw, a drive motor, a screen, a first connecting piece, a pipe body and a material guide assembly, wherein one end of the bidirectional lead screw is rotatably connected to the inner top wall of the shell, the drive motor is arranged on the shell, and the output shaft of the drive motor is connected to one end of the bidirectional lead screw; the screen is arranged in an annular structure, the outer ring of the screen is connected to the inner wall of the shell, and the inner ring of the screen is connected to the first connecting piece; the first connecting piece is sleeved on the outer side of the bidirectional lead screw, and the first connecting piece is slidably connected to the bidirectional lead screw; one end of the pipe body is connected to the other end of the bidirectional lead screw, and an opening is provided on the outer wall of the pipe body; the material guide assembly is connected to the inner wall of the shell, the material guide assembly is communicated with the other end of the pipe body, and one end of the material guide assembly passes through the inner wall of the shell.
[0007] In addition, the mine waste fine sand screening device proposed in the utility model may also have the following additional technical features:
[0008] Specifically, the first connecting member includes two ring bodies, a plurality of connecting rods and a limit block, wherein the two ring bodies are respectively sleeved on the outside of the bidirectional lead screw, and the plurality of connecting rods are arranged between the two ring bodies; the inner ring of the screen is connected to one of the ring bodies; the limit block is arranged on the other ring body, and the limit block is slidably connected to the bidirectional lead screw.
[0009] Specifically, the material guide assembly includes a rotating connector, two fixed rods and a material guide trough, wherein the rotating connector is installed at the other end of the tube body; one end of the two fixed rods is connected to the rotating connector, and the other end of the two fixed rods is connected to the inner wall of the shell; one end of the material guide trough is connected to the rotating connector, and the other end of the material guide trough passes through the inner wall of the shell.
[0010] Specifically, two inclined portions are provided at the bottom of the shell, and the two inclined portions are symmetrically arranged and located on both sides of the discharge port.
[0011] Specifically, the feed port is connected to a connecting pipe, and one end of the connecting pipe is connected to a material collecting cover.
[0012] Compared with the prior art, the utility model has the following beneficial effects: the mine waste fine sand screening device of the utility model, by moving the middle part of the screen up and down along the bidirectional lead screw, forces the screen to deform, which not only prevents the waste from clogging the screen, but also prolongs the screening time of the waste on the screen, so that the fine sand can pass through the screen as much as possible, thereby ensuring the screening effect of the device.
[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0015] Figure 1 This is a schematic diagram of the internal structure of a mine waste fine sand screening device according to an embodiment of the utility model;
[0016] Figure 2 It is a schematic diagram of the internal structure of a mine waste fine sand screening device according to another embodiment of the utility model;
[0017] Figure 3 It is a schematic diagram of the connection structure of the ring body and the bidirectional lead screw of the mine waste fine sand screening device according to one embodiment of the utility model;
[0018] Figure 4The figure is a schematic diagram of the structure of the first connecting piece of a mine waste fine sand screening device according to an embodiment of the utility model.
[0019] Figure numerals: 1. Shell; 11. Feed port; 12. Discharge port; 2. Screening mechanism; 21. Bidirectional screw; 22. Driving motor; 23. Screen; 24. First connecting piece; 241. Ring body; 242. Connecting rod; 243. Limiting block; 25. Tube body; 26. Opening; 27. Material guide assembly; 271. Rotating connecting piece; 272. Fixed rod; 273. Material guide trough; 31. Inclined portion; 41. Connecting pipe; 42. Material collecting cover. DETAILED DESCRIPTION
[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0021] The following describes a device for screening fine sand from mine waste according to an embodiment of the utility model with reference to the accompanying drawings.
[0022] like Figure 1-Figure 4 As shown, the mine waste fine sand screening device of the embodiment of the utility model may include: a shell 1 and a screening mechanism 2.
[0023] A feed inlet 11 is provided at the upper portion of the shell 1 , and a discharge outlet 12 is provided at the bottom of the shell 1 .
[0024] It should be noted that the shell 1 described in this embodiment is placed on the ground through the legs, and the legs can reduce the contact area between the device and the ground, thereby increasing the pressure between the two and increasing the stability of the device during use.
[0025] The screening mechanism 2 may include a bidirectional lead screw 21 , a drive motor 22 , a screen 23 , a first connecting member 24 , a pipe body 25 and a material guiding assembly 27 .
[0026] One end of the bidirectional lead screw 21 is rotatably connected to the inner top wall of the housing 1 .
[0027] It should be noted that one end of the bidirectional lead screw 21 described in this embodiment is rotatably connected to the housing 1 via a bearing.
[0028] The drive motor 22 is arranged on the shell 1, and the output shaft of the drive motor 22 is connected to one end of the bidirectional screw 21. The screen 23 is arranged in a ring structure, the outer ring of the screen 23 is connected to the inner wall of the shell 1, and the inner ring of the screen 23 is connected to the first connecting member 24.
[0029] It should be noted that the screen 23 described in this embodiment can be woven from metal wires, which has a certain flexibility, and the outer ring of the screen 23 can be directly fixedly connected to the inner wall of the shell 1.
[0030] As a possible situation, in order to extend the service life of the screen 23, a hinge, such as a hinge shaft, a hinge, etc., can be provided at the connection between the outer ring of the screen 23 and the inner wall of the shell 1. The screen 23 is connected to the hinge, and during the movement of the screen 23, the hinge can rotate with the screen 23.
[0031] The first connecting member 24 is sleeved on the outside of the bidirectional screw 21, and the first connecting member 24 is slidably connected to the bidirectional screw 21. One end of the tube body 25 is connected to the other end of the bidirectional screw 21. An opening 26 is provided on the outer wall of the tube body 25. The material guiding component 27 is connected to the inner wall of the shell 1. The material guiding component 27 is communicated with the other end of the tube body 25, and one end of the material guiding component 27 passes through the inner wall of the shell 1.
[0032] Specifically, the device is started, the screening mechanism 2 starts to operate, and after the crushed waste stone is crushed, the crushed waste stone is placed inside the shell 1 through the feed port 11 by using external conveying equipment.
[0033] Under the action of gravity, the crushed stone waste to be screened falls on the screen 23. At first, the screen 23 arches upward, and the crushed stone waste to be screened slides along the inclined surface of the screen 23, and a part of the fine sand waste that meets the preset specifications directly passes through the screen 23.
[0034] Afterwards, the driving motor 22 drives the bidirectional screw 21 to rotate, thereby driving the first connecting member 24 to move. The first connecting member 24 drives the screen 23 to deform, and the screen 23 arches downward. The gravel waste to be screened slides along the inclined surface of the screen 23 in the direction of the bidirectional screw 21, and another part of the fine sand waste that meets the preset specifications passes through the screen 23.
[0035] The middle part of the screen 23 moves up and down along the bidirectional lead screw 21, forcing the screen 23 to deform, which not only prevents the waste from clogging the screen 23, but also prolongs the screening time of the waste on the screen 23, so that all the fine sand passes through the screen 23, thereby ensuring the screening effect of the device.
[0036] When the first connecting member 24 moves to the other end of the bidirectional screw 21, the crushed waste blocked on the screen 23 enters the interior of the tube body 25 through the opening 26 and is then discharged through the material guide assembly 27. The above steps are repeated to complete the screening of the mine waste.
[0037] In one embodiment of the present invention, Figure 1 and Figure 4 As shown, the first connecting member 24 may include two ring bodies 241 , a plurality of connecting rods 242 and a limiting block 243 .
[0038] Among them, two ring bodies 241 are respectively sleeved on the outside of the bidirectional screw 21, multiple connecting rods 242 are arranged between the two ring bodies 241, the inner circle of the screen 23 is connected to one ring body 241, and the limit block 243 is arranged on the other ring body 241, and the limit block 243 is slidably connected to the bidirectional screw 21.
[0039] It can be understood that a plurality of connecting rods 242 connect the two ring bodies 241 , and the gap between the two connecting rods 242 can provide a passage for the gravel waste blocked by the screen 23 , thereby ensuring that the gravel waste can smoothly enter the tube body 25 .
[0040] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the material guide assembly 27 includes a rotating connector 271, two fixing rods 272 and a material guide trough 273, wherein:
[0041] The rotating connector 271 is installed at the other end of the tube body 25;
[0042] One end of the two fixing rods 272 is connected to the rotating connecting member 271, and the other end of the two fixing rods 272 is connected to the inner wall of the housing 1;
[0043] One end of the material guiding groove 273 is communicated with the rotating connecting member 271 , and the other end of the material guiding groove 273 passes through the inner wall of the housing 1 .
[0044] It should be noted that one end of the guide chute 273 described in this embodiment can be connected to an external crushing device, and the crushed stones blocked by the screen 23 can be directly crushed again after being discharged through the guide chute 273.
[0045] In one embodiment of the present invention, Figure 1 As shown, two inclined portions 31 are provided at the bottom of the housing 1 , and the two inclined portions 31 are symmetrically arranged and located at both sides of the discharge port 12 .
[0046] It should be noted that an external collection box (not shown in the figure) can be placed below the discharge port 12 described in this embodiment to facilitate relevant technicians to transfer fine sand.
[0047] It can be understood that the inclined portion 31 has the function of agglomeration, which can prevent the screened fine sand from accumulating at the bottom of the shell 1 and ensure that the screened fine sand can smoothly enter the external collection box.
[0048] In one embodiment of the present invention, Figure 1 As shown, the feed port 11 is connected to a connecting pipe 41 , and one end of the connecting pipe 41 is connected to a material collecting cover 42 .
[0049] It is understandable that the provision of the collecting cover 42 can prevent the waste from being scattered on the ground when entering the interior of the device, thereby facilitating the use of the device.
[0050] In summary, the mine waste fine sand screening device of the utility model moves the middle part of the screen up and down along the bidirectional screw, forcing the screen to deform, which not only prevents the waste from clogging the screen, but also prolongs the screening time of the waste on the screen, so that the fine sand can pass through the screen, thereby ensuring the screening effect of the device.
[0051] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0053] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.
Claims
1. A mine waste fine sand screening device, characterized in that: include: A housing (1) and a screening mechanism (2), wherein: The upper portion of the shell (1) is provided with a feed inlet (11), and the bottom portion of the shell (1) is provided with a discharge outlet (12); The screening mechanism (2) comprises a bidirectional lead screw (21), a drive motor (22), a screen (23), a first connecting member (24), a pipe body (25) and a material guide assembly (27), wherein: One end of the bidirectional lead screw (21) is rotatably connected to the inner top wall of the housing (1); the drive motor (22) is arranged on the housing (1); and the output shaft of the drive motor (22) is connected to one end of the bidirectional lead screw (21); The screen (23) is arranged in an annular structure, the outer ring of the screen (23) is connected to the inner wall of the housing (1), and the inner ring of the screen (23) is connected to the first connecting member (24); The first connecting member (24) is sleeved on the outer side of the bidirectional lead screw (21), and the first connecting member (24) is slidably connected to the bidirectional lead screw (21); One end of the tube body (25) is connected to the other end of the bidirectional lead screw (21), and an opening (26) is provided on the outer wall of the tube body (25); The material guiding component (27) is connected to the inner wall of the shell (1), the material guiding component (27) is in communication with the other end of the tube body (25), and one end of the material guiding component (27) passes through the inner wall of the shell (1).
2. The mine waste fine sand screening device according to claim 1, characterized in that: The first connecting member (24) comprises two ring bodies (241), a plurality of connecting rods (242) and a limit block (243), wherein: The two ring bodies (241) are respectively sleeved on the outside of the bidirectional lead screw (21), and a plurality of connecting rods (242) are arranged between the two ring bodies (241); The inner ring of the screen (23) is connected to a ring body (241); The limit block (243) is arranged on the other ring body (241), and the limit block (243) is slidably connected to the bidirectional lead screw (21).
3. The mine waste fine sand screening device according to claim 1, characterized in that: The material guide assembly (27) comprises a rotating connection member (271), two fixing rods (272) and a material guide trough (273), wherein: The rotating connecting member (271) is installed at the other end of the tube body (25); One end of the two fixing rods (272) is connected to the rotating connecting member (271), and the other end of the two fixing rods (272) is connected to the inner wall of the housing (1); One end of the material guiding groove (273) is in communication with the rotating connecting member (271), and the other end of the material guiding groove (273) passes through the inner wall of the shell (1).
4. The mine waste fine sand screening device according to claim 1, characterized in that: The bottom of the shell (1) is provided with two inclined portions (31), and the two inclined portions (31) are symmetrically arranged and located on both sides of the discharge port (12).
5. The mine waste fine sand screening device according to claim 1, characterized in that: The feed port (11) is connected to a connecting pipe (41), and one end of the connecting pipe (41) is connected to a material collecting cover (42).