Multi-stage sand screening machine

Abstract

The utility model relates to a multi-stage sand screening machine, which belongs to the technical field of screening machines, and comprises a screening machine base, a discharging base and a sand screening net, the top of the screening machine base is fixedly connected with a vibration spring, the bottom of a screening box is fixedly connected with a vibration motor, the inner wall of the screening box is uniformly and fixedly provided with a mounting frame, and the screening box is obliquely arranged; a sand screening net is clamped in the placement frame, the top of the screening box fixedly communicates with a sand feeding hopper, guide hoppers are uniformly and fixedly installed in the screening box, the guide hoppers fixedly communicate with a discharging pipe, a sealing plate is inserted into the discharging pipe, the discharging pipe communicates with a conveying hose through bolt connection, and discharging pipes are uniformly and fixedly installed on the discharging base; and the conveying hose is communicated with the discharging pipe through a bolt. According to the sand screening device, the sand screening nets with the needed mesh number can be increased or replaced according to needs, the sand screening net installation structure is convenient to disassemble, assemble and replace, and therefore sand can be rapidly screened in a classified mode and discharged respectively according to needs, and the sand screening device has good applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of screening machines, in particular to a multi-stage sand screening machine. Background Technique

[0002] During the construction process, a screening machine is needed to screen sand. Since the number of meshes of sieves for different uses is different, the screening machine needs to screen out sands with different meshes in grades.

[0003] After retrieval, a Chinese patent with the application number CN202122393416.2 discloses an efficient sand screening for construction. Through the coordinated setting among the first screening mechanism, the second screening mechanism, the translation mechanism and the rotation mechanism, when the device is in use, sand can be poured into the box body. The first screening mechanism and the second screening mechanism can classify and store sands with different particle sizes. And through the translation mechanism, the first screening mechanism and the second screening mechanism are repeatedly moved, so that the sand screening machine is easier to screen sand. Through the cooperation of the translation mechanism and the rotation mechanism, the screened sand is transferred out of the box body for use, improving the work efficiency and the portability of the device.

[0004] The above technical solution has the following defects. Although such a screening machine structure can screen the sieve twice through the first screening mechanism and the second screening mechanism and discharge them separately, in actual use, it is inconvenient to increase the screening mechanism according to actual needs. To further improve the multi-stage screening ability of the screening machine for sand, a multi-stage sand screening machine is now proposed. The sand screening mesh with the required number of meshes can be added or replaced according to needs, and the installation structure of the sand screening mesh is convenient for disassembly and replacement, so as to facilitate the rapid classification screening and separate discharge of sand according to needs, and has good applicability.

[0005] In view of this, this creation improves and solves the above problems, conducts painstaking research and combines theoretical application, and finally proposes a technical solution with reasonable design and effective improvement of the above defects.

[0006] The information disclosed in this background art section is only intended to deepen the understanding of the overall background art of the utility model, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art known to those skilled in the art. Summary of the Utility Model

[0007] The utility model provides a multi-stage sand screening machine, which solves the problems raised in the above background. The sand screening mesh with the required number of meshes can be added or replaced according to needs, and the installation structure of the sand screening mesh is convenient for disassembly and replacement, so as to facilitate the rapid classification screening and separate discharge of sand according to needs, and has good applicability.

[0008] The solution of the utility model to the above technical problems is as follows: A multi-stage sand screening machine, including a screening machine base, a discharge base, and a sand screening net. The top of the screening machine base is fixedly connected with a vibration spring. The bottom of the screening box is fixedly connected with a vibration motor. The inner wall of the screening box is evenly and fixedly installed with a placement frame. The screening box is inclined. The sand screening net is clamped into the placement frame. The top of the screening box is fixedly communicated with a sand inlet hopper. The screening box is evenly and fixedly installed with a guiding hopper. The guiding hopper is fixedly communicated with a discharge pipe. A sealing plate is inserted into the discharge pipe. The discharge pipe is connected and communicated with a transmission hose through bolts. The discharge base is evenly and fixedly installed with a discharge pipe. The transmission hose is communicated with the discharge pipe through bolts.

[0009] On the basis of the above technical solution, the utility model can be further improved as follows.

[0010] Further, the inner wall of the placement frame is evenly rotatably connected with limiting pulleys, so that the sand screening net can smoothly enter and exit the placement frame.

[0011] Further, multiple groups of the placement frames are provided. The multiple groups of the placement frames are arranged in layers on the inner wall of the screening box. Each group of the placement frames has two and is symmetrically arranged. The sand screening nets can be respectively placed at multiple layers of the placement frames.

[0012] Further, the sand screening net can be connected to the screening box through bolts. The sand screening net is fixedly installed with a handle. The sand screening net can be installed in the screening box through bolts. The sand screening net can be pulled out and inserted through the handle.

[0013] Further, the sealing plate is connected with a magnetic block. The sealing plate can be magnetically connected to the discharge pipe through the magnetic block. Inserting the sealing plate into the discharge pipe can seal the discharge pipe, and removing it can open the discharge pipe.

[0014] Further, insertion holes are provided on the outer wall of the discharge pipe corresponding to the sealing plate.

[0015] Further, multiple sand screening nets are provided. The mesh numbers of the multiple sand screening nets gradually increase from top to bottom, and the pore diameters gradually decrease. The multiple layers of sand screening nets can perform hierarchical screening on the sand.

[0016] Further, the top of the screening machine base is fixedly connected with a limiting frame. The bottom of the screening box is provided with a box base adapted to the limiting frame. The screening box is connected to the vibration spring through the box base. The limiting frame can limit the box base, so that the screening box can keep vibrating up and down.

[0017] The utility model provides a multi-stage sand screening machine, which has the following advantages:

[0018] 1. Select a sand screening mesh with the corresponding mesh number according to the required sand diameter. Insert the screening mesh into the placement frame of the screening box through the handle. There are limit pulleys in the placement frame to make the screening mesh enter more smoothly. After the required screening mesh is installed, it can be positioned by bolts, so that multiple groups of screening meshes can be stably placed in the screening box for screening work. Remove the bolts connecting the screening mesh and the screening box to take it out.

[0019] 2. The sand is fed into the screening box through the sand inlet hopper. Starting the vibration motor can drive the screening box to vibrate on the top of the vibration spring. The screening box is inclined, so that multiple groups of screening meshes in the screening box can classify and screen the sand. The fine sand can be transmitted to the lower layer until it is screened out by the screening mesh. The finest sand can be screened to the bottom of the screening box for collection. The classified and screened sand can be discharged separately from the discharge pipe through the guide hopper, discharge pipe, and transmission hose, so as to facilitate the separate collection of sands with different diameters.

[0020] 3. Such a multi-stage sand screening machine can add or replace the screening mesh with the required mesh number according to needs. The installation structure of the screening mesh is convenient for disassembly and replacement, so as to facilitate the rapid classification and screening of sand and separate discharge according to needs, and has good applicability.

[0021] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the description, the following takes the preferred embodiment of the present invention and describes it in detail with the accompanying drawings. The specific implementation manner of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0023] Figure 1 is a schematic structural diagram of a multi-stage sand screening machine provided by an embodiment of the present invention;

[0024] Figure 2 is a front view of a multi-stage sand screening machine provided by an embodiment of the present invention;

[0025] Figure 3 is a schematic structural diagram of the screening box of a multi-stage sand screening machine provided by an embodiment of the present invention from a side view angle;

[0026] Figure 4 is a schematic structural diagram of the screening box of a multi-stage sand screening machine provided by an embodiment of the present invention from a top view angle.

[0027] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0028] 1. Screening machine base; 2. Discharge base; 3. Vibration spring; 4. Screening box; 5. Vibration motor; 6. Placement frame; 7. Limit pulley; 8. Sand screening mesh; 9. Handle; 10. Sand inlet hopper; 11. Limit frame; 12. Guide hopper; 13. Discharge pipe; 14. Sealing plate; 15. Transfer hose; 16. Outlet pipe; 17. Box base. Detailed implementation mode

[0029] The following combines the attached Figures 1-4 The principles and features of the present invention will be described below. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention. In the following paragraphs, the present invention will be described more specifically by way of example with reference to the attached drawings. The advantages and features of the present invention will be clearer according to the following description and the claims. It should be noted that the attached drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present invention.

[0030] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] Such as Figures 1-4As shown in the figure, a multi-stage sand screening machine includes a screening machine base 1, a discharge base 2, and a sand screening mesh 8. A vibration spring 3 is fixedly connected to the top of the screening machine base 1, and a vibration motor 5 is fixedly connected to the bottom of the screening box 4. Placement frames 6 are evenly and fixedly installed on the inner wall of the screening box 4. The screening box 4 is inclined. The sand screening mesh 8 is snapped into the placement frame 6. A sand inlet hopper 10 is fixedly connected to the top of the screening box 4. Guide hoppers 12 are evenly and fixedly installed in the screening box 4. The guide hopper 12 is fixedly connected to a discharge pipe 13. A sealing plate 14 is inserted into the discharge pipe 13. The discharge pipe 13 is connected and communicated with a transmission hose 15 through bolts. Discharge pipes 16 are evenly and fixedly installed on the discharge base 2. The transmission hose 15 is communicated with the discharge pipe 16 through bolts.

[0033] Preferably, limiting pulleys 7 are evenly rotatably connected to the inner wall of the placement frame 6, so that the sand screening mesh 8 can smoothly enter and exit the placement frame 6.

[0034] Preferably, multiple groups of placement frames 6 are provided. The multiple groups of placement frames 6 are arranged in layers on the inner wall of the screening box 4. Each group of placement frames 6 has two and is symmetrically arranged. The sand screening meshes 8 can be respectively placed at multiple layers of placement frames 6.

[0035] Preferably, the sand screening mesh 8 can be connected to the screening box 4 through bolts. A handle 9 is fixedly installed on the sand screening mesh 8. The sand screening mesh 8 can be installed in the screening box 4 through bolts. The sand screening mesh 8 can be pulled out and inserted through the handle 9.

[0036] Preferably, the sealing plate 14 is connected with a magnetic block. The sealing plate 14 can be magnetically connected to the discharge pipe 13 through the magnetic block. Inserting the sealing plate 14 into the discharge pipe 13 can close the discharge pipe 13, and removing it can open the discharge pipe 13.

[0037] Preferably, insertion holes are provided on the outer wall of the discharge pipe 13 corresponding to the sealing plate 14. The discharge pipe 13 corresponding to the sand screening mesh 8 not provided can be inserted with the sealing plate 14 for plugging to prevent sand from passing through during the screening process.

[0038] Preferably, multiple sand screening meshes 8 are provided. The number of meshes of the multiple sand screening meshes 8 gradually increases from top to bottom, and the aperture gradually decreases. The multiple layers of sand screening meshes 8 can perform hierarchical screening on the sand.

[0039] Preferably, a limiting frame 11 is fixedly connected to the top of the screening machine base 1. A box body base 17 adapted to the limiting frame 11 is provided at the bottom of the screening box 4. The screening box 4 is connected to the vibration spring 3 through the box body base 17. The limiting frame 11 can limit the box body base 17, so that the screening box 4 can keep vibrating up and down.

[0040] The specific working principle and usage method of the utility model are as follows: Select a sand screening mesh 8 with the corresponding mesh number according to the diameter of the required sand. Insert the sand screening mesh 8 into the placement frame 6 of the screening box 4 through the handle 9. There are limiting pulleys 7 in the placement frame 6 to make the sand screening mesh 8 enter more smoothly. After the required sand screening mesh 8 is installed, it can be positioned by bolts, so that multiple groups of sand screening meshes 8 can be stably placed in the screening box 4 for screening work. Remove the bolts connecting the sand screening mesh 8 and the screening box 4 to remove it. The sand is introduced into the screening box 4 through the sand hopper 10. Starting the vibration motor 5 can drive the screening box 4 to vibrate on the top of the vibration spring 3. The screening box 4 is inclined, so that multiple groups of sand screening meshes 8 in the screening box 4 can classify and screen the sand. The fine sand can be transmitted to the lower layer until it is screened out by the sand screening mesh 8. The finest sand can be screened to the bottom of the screening box 4 for collection. The classified and screened sand can be discharged separately through the guide hopper 12, the discharge pipe 13, the transmission hose 15 and finally from the discharge pipe 16, so as to facilitate the separate collection of sands with different diameters.

[0041] The above is only the preferred embodiment of the utility model, and it does not impose any form of restriction on the utility model; Any ordinary technician in the industry can smoothly implement the utility model according to the instructions in the drawings and the above description; However, any equivalent changes made by those skilled in the art within the scope of the technical solution of the utility model by using the technical content disclosed above, such as minor changes, modifications and evolutions, are equivalent embodiments of the utility model; At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model still fall within the protection scope of the technical solution of the utility model.

Claims

1. A multi-stage sand screening machine, comprising a screening machine base (1), a discharge base (2), and a sand screening mesh (8), characterized in that: The top of the base (1) of the screening machine is fixedly connected with vibration springs (3). The sand screening net (8) is connected with the screening box (4) by bolts. The sand screening net (8) is fixedly installed with a handle (9). The bottom of the screening box (4) is fixedly connected with a vibration motor (5). The inner wall of the screening box (4) is evenly and fixedly installed with placement frames (6). The screening box (4) is inclined. The sand screening net (8) is snapped into the placement frames (6). The top of the screening box (4) is fixedly communicated with a sand inlet hopper (10). The inner part of the screening box (4) is evenly and fixedly installed with guide hoppers (12). The guide hoppers (12) are fixedly communicated with discharge pipes (13). A sealing plate (14) is inserted into the discharge pipes (13). The discharge pipes (13) are connected and communicated with a transmission hose (15) by bolts. The discharge base (2) is evenly and fixedly installed with discharge pipes (16). The transmission hose (15) is communicated with the discharge pipes (16) by bolts.

2. The multi-stage sand screening machine according to claim 1, characterized in that, The inner wall of the placement frame (6) is evenly rotatably connected with limiting pulleys (7).

3. The multi-stage sand screening machine according to claim 1, wherein, There are multiple groups of the placement frames (6). The multiple groups of placement frames (6) are arranged in layers on the inner wall of the screening box (4). Each group of placement frames (6) has two and is symmetrically arranged.

4. The multi-stage sand screening machine according to claim 1, wherein, The sealing plate (14) is connected with a magnetic block. The sealing plate (14) can be magnetically connected with the discharge pipe (13) through the magnetic block.

5. The multi-stage sand screening machine according to claim 1, wherein A jack is formed in the outer wall of the discharge pipe (13) corresponding to the sealing plate (14).

6. The multi-stage sand screening machine according to claim 1, wherein There are multiple sand screening nets (8). The number of meshes of the multiple sand screening nets (8) gradually increases from top to bottom, and the aperture gradually decreases.

7. The multi-stage sand screening machine according to claim 1, wherein, The top of the base (1) of the screening machine is fixedly connected with a limiting frame (11). The bottom of the screening box (4) is provided with a box base (17) adapted to the limiting frame (11). The screening box (4) is connected with the vibration springs (3) through the box base (17).

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