Filtering and screening device of screw conveyer

Abstract

The utility model belongs to the technical field of spiral conveyors, and particularly relates to a filtering and screening device of a spiral conveyor, which comprises a conveying pipe, a spiral conveying shaft, a second driving motor, a first discharging hopper, a second discharging hopper, a second driving motor, a third driving motor, a fourth driving motor and a fourth driving motor. No.1 sieve holes are formed in the bottom surface of the conveying pipe; a second sieve hole is formed in the middle section of the bottom surface of the conveying pipe; a third sieve hole is formed in the position, close to the discharging slide way, of the bottom face of the conveying pipe, and the hole diameters of the first sieve hole, the second sieve hole and the third sieve hole are gradually increased; according to the multi-stage screening device, through the first screening holes, the second screening holes and the third screening holes, multi-stage screening can be carried out on materials, the materials with different particle sizes are separated from one another, discharging is carried out through the first discharging hopper, the second discharging hopper, the third discharging hopper and the discharging sliding way, using is more reliable, and practicability is higher.

Description

Technical Field

[0001] This utility model belongs to the technical field of screw conveyors, and specifically relates to a screw conveyor filtration and screening device. Background Technology

[0002] A screw conveyor is a machine that uses a motor to drive a screw to rotate and push materials to achieve the purpose of conveying. It can convey horizontally, inclined or vertically, and has the advantages of simple structure, small cross-sectional area, good sealing, convenient operation, easy maintenance and convenient closed transportation. Screw conveyors are divided into two types in terms of conveying form: shafted screw conveyor and shaftless screw conveyor. In terms of appearance, they are divided into U-shaped screw conveyor and tubular screw conveyor.

[0003] With the increasing demand for transportation, some goods need to be filtered and screened during transportation. Therefore, there are screw conveyors with screening functions on the market.

[0004] A search revealed that Chinese utility model patent CN221295056U discloses "a novel conveying device". The conveying pipe of the screw conveyor body has an annular trough on its wall, and a rectangular slag discharge port is opened on the lower side wall of the annular trough. A filter screen tube is movably mounted on the outer circumferential wall of the annular trough. First gears are fixedly mounted on the outer sides of both ends of the filter screen tube. Filter holes are arranged in a circular array on the circumferential side wall of the filter screen tube. Rotary shaft fixing seats are fixedly installed on the front side wall of the conveying pipe at both ends of the filter screen tube. It has the feature of flexibly switching the filter hole diameter.

[0005] While existing screw conveyors, including those mentioned above, can adjust the filter aperture and have certain positive effects, in actual use, a single conveying can only screen materials of a single particle size, and cannot achieve multi-stage screening, resulting in significant limitations in their application.

[0006] To solve the above problems, this utility model proposes a screw conveyor filtration and screening device. Utility Model Content

[0007] To address the aforementioned problems in the existing technology, this utility model provides a screw conveyor filtration and screening device, which is convenient to use and has high screening efficiency.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a screw conveyor filtering and screening device, comprising a conveying pipe, a screw conveyor shaft rotatably installed inside the conveying pipe, and a second drive motor fixed to the end face of the conveying pipe for driving the screw conveyor shaft to rotate; a feeding hopper is fixed at the top end of the conveying pipe, and a discharging chute is fixed at the bottom end; further comprising:

[0009] The No. 1 feeding hopper has a No. 1 screen hole machined on the bottom surface of the conveying pipe near the position of the feeding hopper. The No. 1 feeding hopper is fixed to the bottom surface of the conveying pipe at the position corresponding to the No. 1 screen hole.

[0010] The No. 2 feeding hopper has a No. 2 screen hole machined in the middle section of the bottom surface of the conveying pipe, and the No. 2 feeding hopper is fixed to the bottom surface of the conveying pipe at the position corresponding to the No. 2 screen hole.

[0011] The No. 3 feeding hopper has a No. 3 screen hole machined on the bottom surface of the conveying pipe near the feeding chute. The No. 3 feeding hopper is fixed to the bottom surface of the conveying pipe corresponding to the No. 3 screen hole. The diameters of the No. 1 screen hole, the No. 2 screen hole and the No. 3 screen hole increase in sequence.

[0012] As a preferred embodiment of this utility model, the conveying pipe conveys materials in a horizontal direction.

[0013] As a preferred embodiment of this utility model, it further includes a rinsing assembly, and the rinsing assembly includes:

[0014] A movable seat, which is movably connected to the conveying pipe;

[0015] The fixing frame is fixed to the outer wall of the movable base;

[0016] The nozzle is fixed on the mounting bracket, and a guide hole for the nozzle to pass through is machined at the top end of the delivery pipe;

[0017] A drive assembly is drivably connected to the movable base for driving the movable base to move.

[0018] As a preferred embodiment of this utility model, the driving component includes:

[0019] Two fixing plates are fixed at a distance from the top end of the conveying pipe;

[0020] A threaded screw is rotatably mounted between the two fixed plates, and the threaded screw passes through the movable seat and is connected to the movable seat by a threaded engagement.

[0021] A first drive motor is fixed on the fixed plate and is used to drive the threaded screw to rotate.

[0022] As a preferred embodiment of this utility model, the driving component further includes:

[0023] Two guide rods are symmetrically fixed between the two fixed plates, and the guide rods pass through the movable seat.

[0024] As a preferred embodiment of this utility model, the No. 1 feeding hopper is fixed to the bottom surface of the conveying pipe by bolts and covers the No. 1 screen hole.

[0025] As a preferred embodiment of this utility model, the second hopper is fixed to the bottom surface of the conveying pipe by bolts and covers the second screen hole.

[0026] As a preferred embodiment of this utility model, the No. 3 hopper is fixed to the bottom surface of the conveying pipe by bolts and covers the No. 3 sieve hole.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] In this invention, materials can be screened in multiple stages by setting No. 1, No. 2, and No. 3 sieve holes, so that materials of different particle sizes can be separated from each other and discharged through No. 1, No. 2, No. 3 hoppers and discharge chute respectively, making it more reliable and practical.

[0029] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a structural diagram of the utility model;

[0032] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0033] Figure 3 For this utility model Figure 1 A magnified schematic diagram of the flushing component.

[0034] In the diagram: 1. Conveying pipe; 11. Screen hole No. 1; 12. Screen hole No. 2; 13. Screen hole No. 3; 14. Guide slide hole; 2. Feeding hopper; 3. Washing assembly; 31. Moving seat; 32. Fixed frame; 33. Nozzle; 4. Drive assembly; 41. Fixed plate; 42. Threaded screw; 43. Drive motor No. 1; 44. Guide rod; 5. Screw conveyor shaft; 6. Drive motor No. 2; 7. Discharge hopper No. 1; 8. Discharge hopper No. 2; 9. Discharge hopper No. 3; 10. Discharge chute. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figure 1-Figure 3 The present invention provides the following technical solution: a screw conveyor filtering and screening device, including a conveying pipe 1, a screw conveying shaft 5 rotatably installed in the conveying pipe 1, and a second drive motor 6 fixed to the end face of the conveying pipe 1 for driving the screw conveying shaft 5 to rotate. A feeding hopper 2 is fixed at the top end of the conveying pipe 1 and a discharging chute 10 is fixed at the bottom end. The device also includes a first discharging hopper 7, a second discharging hopper 8, and a third discharging hopper 9.

[0037] Furthermore, by Figure 1 and Figure 2 As shown in this embodiment, a first screen hole 11 is machined on the bottom surface of the conveying pipe 1 near the feeding hopper 2. A first feeding hopper 7 is fixed to the bottom surface of the conveying pipe 1 corresponding to the position of the first screen hole 11. A second screen hole 12 is machined in the middle section of the bottom surface of the conveying pipe 1. A second feeding hopper 8 is fixed to the bottom surface of the conveying pipe 1 corresponding to the position of the second screen hole 12. A third screen hole 13 is machined on the bottom surface of the conveying pipe 1 near the feeding chute 10. A third feeding hopper 9 is fixed to the bottom surface of the conveying pipe 1 corresponding to the position of the third screen hole 13. The apertures of the first screen hole 11, the second screen hole 12, and the third screen hole 13 increase progressively. With the above scheme, in use, the second drive motor 6 is started to drive the screw conveyor shaft 5 to rotate, and the material to be conveyed is put into the conveying pipe 1 from the feeding hopper 2. While rotating, the screw conveyor shaft 5 will push the material forward. When the material passes through the first screen hole 11, the smallest particle size passes through the first screen hole 11 and is discharged from the first feed hopper 7, while other materials continue to be conveyed. When the material passes through the second screen hole 12, the smallest particle size passes through the second screen hole 12 and is discharged from the second feed hopper 8, while other materials continue to be conveyed. When the material passes through the third screen hole 13, the smallest particle size passes through the third screen hole 13 and is discharged from the third feed hopper 9, while larger particles continue to be conveyed and finally discharged from the discharge chute 10. This utility model, through the setting of the first screen hole 11, the second screen hole 12, and the third screen hole 13, can perform multi-stage screening of materials, so that materials of different particle sizes are separated from each other and discharged through the first feed hopper 7, the second feed hopper 8, the third feed hopper 9, and the discharge chute 10 respectively, making it more reliable and more practical.

[0038] Optionally, by Figure 1 and Figure 2In this embodiment, the conveying pipe 1 conveys materials in a horizontal direction. The above solution is only an exemplary solution of this utility model and is not intended to limit this utility model. This solution can also be used to convey materials in an inclined direction.

[0039] It should be noted that when the conveying pipe 1 conveys materials in an inclined direction, in order to ensure the reliability of the feeding and avoid material contamination, the lengths of the first feeding hopper 7, the second feeding hopper 8, the third feeding hopper 9 and the feeding chute 10 need to be redesigned. Preferably, the lengths of the first feeding hopper 7, the second feeding hopper 8, the third feeding hopper 9 and the feeding chute 10 increase in sequence to ensure that each particle size of material has sufficient feeding space.

[0040] Preferably, by Figure 1 and Figure 3 As shown, this embodiment also includes a rinsing assembly 3, which includes a movable base 31, a fixed frame 32, a nozzle 33, and a driving assembly 4. The movable base 31 is movably connected to the conveying pipe 1, the fixed frame 32 is fixed to the outer wall of the movable base 31, and the nozzle 33 is fixed on the fixed frame 32. A guide sliding hole 14 for the nozzle 33 to pass through is machined at the top of the conveying pipe 1. The driving assembly 4 is drivably connected to the movable base 31 and is used to drive the movable base 31 to move. With the above solution, when in use, a water pump is used to draw rinsing water from the water source to the nozzle 33, and at the same time, the driving assembly 4 is started to drive the movable base 31 to move. The movable base 31 drives the nozzle 33 to move, rinsing the inner wall of the conveying pipe 1 and the spiral conveying shaft 5, avoiding the adhesion of impurities, and reducing the difficulty and workload of later equipment maintenance.

[0041] Optionally, by Figure 1 and Figure 3 As shown, in this embodiment, the drive assembly 4 includes: a fixed plate 41, a threaded screw 42, and a first drive motor 43. The two fixed plates 41 are fixed at intervals to the top of the delivery pipe 1. The threaded screw 42 is rotatably installed between the two fixed plates 41 and passes through the movable seat 31 and is connected to the movable seat 31 by thread engagement. The first drive motor 43 is fixed on the fixed plate 41 and is used to drive the threaded screw 42 to rotate. With the above scheme, when in use, the first drive motor 43 is started to drive the threaded screw 42 to rotate. Under the thread engagement, the movable seat 31 drives the nozzle 33 to move.

[0042] Preferably, by Figure 1 and Figure 3 As shown in this embodiment, the drive assembly 4 further includes a guide rod 44. The two guide rods 44 are symmetrically fixed between the two fixed plates 41, and the guide rods 44 pass through the movable seat 31. With the above solution, the two guide rods 44 are used to guide the movable seat 31 during use, which improves the stability of the movable seat 31.

[0043] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, the No. 1 feeding hopper 7 is fixed to the bottom surface of the conveying pipe 1 by bolts and covers the No. 1 screen hole 11. With the above solution, the No. 1 feeding hopper 7 is installed stably, and it is also easy to disassemble, maintain and clean.

[0044] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, the No. 2 feeding hopper 8 is fixed to the bottom surface of the conveying pipe 1 by bolts and covers the No. 2 screen hole 12. With the above solution, the No. 2 feeding hopper 8 is installed stably, and it is also easy to disassemble, maintain and clean.

[0045] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, the No. 3 feeding hopper 9 is fixed to the bottom surface of the conveying pipe 1 by bolts and covers the No. 3 screen hole 13. With the above solution, the No. 3 feeding hopper 9 is installed stably, and it is also easy to disassemble, maintain and clean.

[0046] It should be noted that both drive motor 43 and drive motor 6 are commercially available standard equipment with built-in power switches. Those skilled in the art can make conventional selections according to their needs. Their working principles are common knowledge known to those skilled in the art and have been fully disclosed in the prior art, so they will not be elaborated on further in this article.

[0047] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0048] Components not described in detail in this article are existing technologies.

[0049] The working principle and usage process of this utility model: When using the screw conveyor of this utility model, the No. 2 drive motor 6 is started to drive the screw conveyor shaft 5 to rotate, and the material to be conveyed is put into the conveying pipe 1 from the feed hopper 2. The screw conveyor shaft 5 will push the material forward while rotating.

[0050] When the material passes through the No. 1 screen hole 11, the smallest particle size material passes through the No. 1 screen hole 11 and is discharged from the No. 1 feed hopper 7, while other materials continue to be conveyed.

[0051] When the material passes through the second screen hole 12, the material with the smallest particle size passes through the second screen hole 12 and is discharged from the second feed hopper 8, while the other materials continue to be conveyed.

[0052] When the material passes through the No. 3 screen hole 13, the smallest particle size material passes through the No. 3 screen hole 13 and is discharged from the No. 3 discharge hopper 9, while the large particles continue to be conveyed and finally discharged from the discharge chute 10.

[0053] This utility model, through the setting of No. 1 sieve hole 11, No. 2 sieve hole 12 and No. 3 sieve hole 13, can perform multi-stage screening of materials, so that materials of different particle sizes can be separated from each other, and discharged through No. 1 feed hopper 7, No. 2 feed hopper 8, No. 3 feed hopper 9 and feed chute 10 respectively, making it more reliable and more practical.

[0054] When necessary, a water pump is used to draw flushing water from the water source to the nozzle 33. At the same time, the No. 1 drive motor 43 is started to drive the threaded screw 42 to rotate. Under the screw rotation, the moving seat 31 drives the nozzle 33 to move. By moving the nozzle 33 through the moving seat 31, the inner wall of the conveying pipe 1 and the spiral conveying shaft 5 are flushed to prevent impurities from sticking together and reduce the difficulty and workload of later equipment maintenance.

[0055] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A screw conveyor filtering and screening device, comprising a conveying pipe (1), a screw conveying shaft (5) rotatably installed inside the conveying pipe (1), and a second drive motor (6) fixed to the end face of the conveying pipe (1) for driving the screw conveying shaft (5) to rotate, wherein a feeding hopper (2) is fixed at the top end of the conveying pipe (1) and a discharge chute (10) is fixed at the bottom end, characterized in that, Also includes: The No. 1 feeding hopper (7) has a No. 1 screen hole (11) machined on the bottom surface of the conveying pipe (1) near the feeding hopper (2). The No. 1 feeding hopper (7) is fixed to the bottom surface of the conveying pipe (1) at the position corresponding to the No. 1 screen hole (11). The second feeding hopper (8) has a second screen hole (12) machined in the middle section of the bottom surface of the conveying pipe (1). The second feeding hopper (8) is fixed to the bottom surface of the conveying pipe (1) at the position corresponding to the second screen hole (12). The No. 3 feeding hopper (9) has a No. 3 screen hole (13) machined on the bottom surface of the conveying pipe (1) near the feeding slide (10). The No. 3 feeding hopper (9) is fixed to the bottom surface of the conveying pipe (1) at the position corresponding to the No. 3 screen hole (13). The apertures of the No. 1 screen hole (11), the No. 2 screen hole (12), and the No. 3 screen hole (13) increase in sequence.

2. The screw conveyor filtering and screening device according to claim 1, characterized in that: The conveying pipe (1) conveys materials in a horizontal direction.

3. The screw conveyor filtering and screening device according to claim 1, characterized in that: It also includes a rinsing assembly (3), and the rinsing assembly (3) includes: A movable seat (31) is movably connected to the conveying pipe (1); A fixing frame (32) is fixed to the outer wall of the movable seat (31); The nozzle (33) is fixed on the fixed frame (32), and a guide sliding hole (14) for the nozzle (33) to pass through is machined at the top end of the delivery pipe (1); A drive component (4) is drivably connected to the movable base (31) for driving the movable base (31) to move.

4. The screw conveyor filtering and screening device according to claim 3, characterized in that: The driving component (4) includes: Fixing plates (41), two of the fixing plates (41) are fixed at intervals to the top end of the conveying pipe (1); A threaded screw (42) is rotatably mounted between two fixed plates (41), and the threaded screw (42) passes through the movable seat (31) and is connected to the movable seat (31) by means of thread engagement; A first drive motor (43) is fixed on the fixed plate (41) and is used to drive the threaded screw (42) to rotate.

5. A screw conveyor filtering and screening device according to claim 4, characterized in that: The driving component (4) also includes: Guide rods (44), two guide rods (44) are symmetrically fixed between two fixed plates (41), and the guide rods (44) pass through the movable seat (31).

6. The screw conveyor filtering and screening device according to claim 1, characterized in that: The first feeding hopper (7) is fixed to the bottom surface of the conveying pipe (1) by bolts and covers the first screen hole (11).

7. The screw conveyor filtering and screening device according to claim 1, characterized in that: The second hopper (8) is fixed to the bottom surface of the conveying pipe (1) by bolts and covers the second screen hole (12).

8. The screw conveyor filtering and screening device according to claim 1, characterized in that: The No. 3 feeding hopper (9) is fixed to the bottom surface of the conveying pipe (1) by bolts and covers the No. 3 sieve hole (13).

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