Storage hopper material spiral conveying device
By optimizing the structural design of the screw conveyor device for the storage hopper, and combining it with a stirring rod and an anti-backflow baffle, the problems of material adhesion, blockage, and difficulty in conveying materials with good flowability were solved, achieving a fast and efficient material conveying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional screw conveyor systems for storage hoppers suffer from problems such as material adhesion, blockage, difficulty in conveying materials with good flowability, and arching at the discharge port of the inclined screw, which affect the use of the system.
The design incorporates a storage hopper, a horizontal spiral conveyor assembly, a vertical spiral conveyor assembly, and an upward-sloping spiral conveyor assembly. Combined with a stirring rod and an anti-backflow baffle, the design of the spiral blade spacing and connection points has been optimized, and the stirring function and guiding device have been added.
It effectively prevents material backflow, improves the conveying efficiency of materials with good flowability, avoids material blockage, and achieves fast and efficient material conveying.
Smart Images

Figure CN224062024U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of material conveying, and in particular to a screw conveyor device for hopper materials. Background Technology
[0002] Screw conveyors are a commonly used and widely applied material handling equipment. Traditional screw conveyor systems for storage hoppers have the following problems:
[0003] The bottom of the storage hopper arches, which can easily cause materials to stick together.
[0004] Material blockage is prone to occur at the connection between the horizontal and vertical screws;
[0005] Materials with high fluidity are difficult to transport;
[0006] The discharge port of the inclined screw is prone to arching;
[0007] The combination of these problems has affected the use of the device. Utility Model Content
[0008] The present invention aims to address the shortcomings of the prior art by providing a screw conveyor device for hopper materials.
[0009] To achieve the above objectives, this utility model adopts the following technical solution:
[0010] A material screw conveyor device for a storage hopper includes a storage hopper, a horizontal screw conveyor assembly installed at the bottom of the storage hopper, a vertical screw conveyor assembly connected to the end of the horizontal screw conveyor assembly, and an upward screw conveyor assembly connected to the upper end of the vertical screw conveyor assembly through an inclined downward guide pipe.
[0011] The horizontal screw conveyor assembly includes a U-shaped housing at the bottom of the storage hopper, a horizontal housing at the outer end of the U-shaped housing, a horizontal screw installed inside the U-shaped housing and the horizontal housing, a first drive motor connected to the horizontal screw, and a first anti-backflow baffle on the screw blades of the horizontal screw near the outlet end of the horizontal housing.
[0012] The vertical screw conveyor assembly includes a vertical housing, a vertical screw inside the vertical housing, a second drive motor connected to the top of the vertical screw, and second anti-backflow baffles arranged on the screw blades of the vertical screw at certain intervals.
[0013] The inclined upward spiral conveying assembly includes an inclined upward U-shaped housing connected to the bottom of the guide pipe, an inclined upward housing installed at one end of the inclined upward U-shaped housing, a vertical discharge cylinder installed at the end of the inclined upward housing, an inclined upward spiral installed inside the inclined upward U-shaped housing and the inclined upward housing, a third drive motor connected to the inclined upward spiral, and a third anti-backflow baffle arranged on the spiral blades of the inclined upward spiral at a certain distance.
[0014] The horizontal spiral central shaft inside the U-shaped shell is provided with first stirring rod mounting plates at both ends and in the middle, and a first arc-shaped stirring rod is installed between the first stirring rod mounting plates at the ends and in the middle.
[0015] The spacing between the spiral blades at the outlet end of the horizontal spiral near the horizontal shell is increased.
[0016] The vertical shell sidewall is provided with a connection port for connecting with the horizontal shell, and a feeding guide cylinder is provided inside the connection port.
[0017] The spacing between the blades of the vertical spiral below the connection port is smaller than the spacing between the blades of the vertical spiral above the connection port.
[0018] The two ends of the upward spiral central shaft located inside the upward U-shaped shell are provided with second stirring rod mounting plates, and a second arc-shaped stirring rod is installed between the two second stirring rod mounting plates.
[0019] A U-shaped discharge port scraper is installed on the upward spiral central shaft inside the vertical discharge cylinder.
[0020] The beneficial effects of this utility model are: it can prevent material backflow, improve the conveying effect of materials with good flowability, avoid material blockage, and make the conveying faster and more efficient. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the external structure of a horizontal spiral conveyor assembly.
[0023] Figure 3 This is a schematic diagram of the internal structure of a horizontal spiral conveyor assembly;
[0024] Figure 4 Schematic diagram of the external structure of the vertical spiral conveyor assembly, the guide pipe, and the inclined upward spiral conveyor assembly;
[0025] Figure 5 This is a schematic diagram of the internal structure of a vertical spiral conveyor assembly.
[0026] Figure 6 This is a schematic diagram of the internal structure of the upward spiral conveyor assembly;
[0027] In the diagram: 1-Storage hopper; 2-Horizontal screw conveyor assembly; 3-Vertical screw conveyor assembly; 4-Guide pipe; 5-Angled upward screw conveyor assembly; 6-Storage hopper support; 7-Inlet; 8-Bag filter connection port;
[0028] 21-U-shaped shell; 22-Horizontal shell; 23-Horizontal spiral; 24-First drive motor; 25-First anti-backflow baffle; 26-First stirring rod mounting plate; 27-First arc-shaped stirring rod;
[0029] 31-Vertical shell; 32-Vertical spiral; 33-Second drive motor; 34-Second anti-backflow baffle; 35-Connection port; 36-Feeding guide cylinder;
[0030] 51-U-shaped shell with upward sloping direction; 52-shell with upward sloping direction; 53-vertical discharge cylinder; 54-spiral with upward sloping direction; 55-third drive motor; 56-third anti-backflow baffle; 57-second stirring rod mounting plate; 58-second arc-shaped stirring rod; 59-U-shaped discharge port scraper; 510-inspection port;
[0031] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation
[0032] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0033] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0036] A screw conveyor for hopper materials, such as Figure 1 As shown, it includes a storage hopper 1, a horizontal screw conveyor assembly 2, a vertical screw conveyor assembly 3, a guide pipe 4, an upward-sloping screw conveyor assembly 5, a storage hopper support 6, a feed inlet 7, and a bag filter connection port 8.
[0037] The storage hopper 1 is installed on the storage hopper support 6, and the top of the storage hopper 1 is provided with a feed inlet 7 and a bag filter connection port 8.
[0038] A horizontal screw conveyor assembly 2 is installed at the bottom of the storage hopper 1. A vertical screw conveyor assembly 3 is connected to the end of the horizontal screw conveyor assembly 2. An upward screw conveyor assembly 5 is connected to the upper end of the vertical screw conveyor assembly 3 through an inclined downward guide pipe 4.
[0039] like Figure 2 , Figure 3 As shown, the horizontal spiral conveying assembly 2 includes a U-shaped housing 21 disposed at the bottom of the storage hopper 1, a horizontal housing 22 installed at the outer end of the U-shaped housing 21, a horizontal spiral 23 installed inside the U-shaped housing 21 and the horizontal housing 22, the horizontal spiral 23 being connected to a first drive motor 24, and a first anti-backflow baffle 25 provided on the spiral blades of the horizontal spiral 23 near the outlet end of the horizontal housing 22.
[0040] The horizontal spiral 23 inside the U-shaped shell 21 is provided with first stirring rod mounting plates 26 at both ends and in the middle, and a first arc-shaped stirring rod 27 is installed between the first stirring rod mounting plates 26 at the ends and in the middle.
[0041] The spacing between the spiral blades of the horizontal spiral 23 at the outlet end near the horizontal housing 22 is increased.
[0042] The bottom of the storage hopper 1 is optimized into a U-shaped shell 21, with an added stirring function inside to avoid the problem of arching and material sticking; at the same time, the horizontal spiral is equipped with a first anti-flow baffle 25, which is a bent plate set on the outer edge of the spiral blades of the horizontal spiral 23, which can prevent material backflow and has a better conveying effect for materials with good flowability.
[0043] like Figure 4 , Figure 5 As shown, the vertical spiral conveying assembly 3 includes a vertical housing 31, a vertical spiral 32 is provided inside the vertical housing 31, a second drive motor 33 is connected to the top of the vertical spiral 32, and a second anti-backflow baffle 34 is provided on the spiral blades of the vertical spiral 32 at a certain distance.
[0044] The vertical housing 31 has a connection port 35 on its side wall for connecting with the horizontal housing 22, and a feeding guide cylinder 36 is provided inside the connection port 35.
[0045] The spacing between the spiral blades of the vertical spiral 32 below the connection port 35 is smaller than the spacing between the spiral blades of the vertical spiral 32 above the connection port 35.
[0046] The vertical shell 31 is composed of several individual shells connected in sequence.
[0047] The connection port 35 connecting the vertical housing 31 and the horizontal housing 22 is equipped with a feeding guide cylinder 36, which makes it easier to convey horizontal tail material. The second anti-backflow baffle 34 can prevent material backflow and has a better conveying effect for materials with good flowability.
[0048] like Figure 4 , Figure 6 As shown, the inclined upward spiral conveying assembly 5 includes an inclined upward U-shaped housing 51 connected to the bottom of the guide pipe 4, an inclined upward housing 52 installed at one end of the inclined upward U-shaped housing 51, a vertical discharge cylinder 53 installed at the end of the inclined upward housing 52, an inclined upward spiral 54 installed inside the inclined upward U-shaped housing 51 and the inclined upward housing 52, a third drive motor 55 connected to the inclined upward spiral 54, and a third anti-backflow baffle 56 arranged on the spiral blades of the inclined upward spiral 54 at a certain distance.
[0049] The two ends of the central shaft of the upward spiral 54 located inside the upward U-shaped shell 51 are provided with second stirring rod mounting plates 57, and a second arc-shaped stirring rod 58 is installed between the two second stirring rod mounting plates 57.
[0050] A U-shaped discharge scraper 59 is installed on the central shaft of the upward spiral 54 located inside the vertical discharge cylinder 53.
[0051] The top of the vertical discharge cylinder 53 is equipped with an inspection port 510.
[0052] The upward-sloping U-shaped shell 51 can prevent arching. The internal stirring device makes the conveying smoother. The third anti-backflow baffle 56 can prevent material backflow and has a better conveying effect for materials with good flowability. The U-shaped discharge port scraper 59 can scrape the discharge point to prevent material blockage.
[0053] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A hopper material screw conveyor, characterized by, The device comprises a hopper (1), a horizontal screw conveying assembly (2) is installed at the bottom of the hopper (1), the end of the horizontal screw conveying assembly (2) is connected with a vertical screw conveying assembly (3), the upper end of the vertical screw conveying assembly (3) is connected with an oblique upward screw conveying assembly (5) through an oblique downward material guide pipe (4); The horizontal screw conveying assembly (2) comprises a U-shaped shell (21) arranged at the bottom of the hopper (1), a horizontal shell (22) is installed at the outer end of the U-shaped shell (21), a horizontal screw (23) is arranged in the U-shaped shell (21) and the horizontal shell (22), the horizontal screw (23) is connected with a first driving motor (24), and a first anti-backflow baffle (25) is arranged on the screw blade of the horizontal screw (23) close to the outlet end of the horizontal shell (22). The vertical screw conveying assembly (3) comprises a vertical shell (31), a vertical screw (32) is arranged in the vertical shell (31), the top of the vertical screw (32) is connected with a second driving motor (33), and a second anti-backflow baffle (34) is arranged on the screw blade of the vertical screw (32) at intervals. The oblique upward screw conveying assembly (5) comprises an oblique upward U-shaped shell (51) connected at the bottom of the material guide pipe (4), an oblique upward shell (52) is installed at one end of the oblique upward U-shaped shell (51), a vertical discharge cylinder (53) is installed at the end of the oblique upward shell (52), an oblique upward screw (54) is arranged in the oblique upward U-shaped shell (51) and the oblique upward shell (52), the oblique upward screw (54) is connected with a third driving motor (55), and a third anti-backflow baffle (56) is arranged on the screw blade of the oblique upward screw (54) at intervals.
2. A screw conveyor for a hopper according to claim 1, wherein First stirring rod mounting plates (26) are arranged at both ends and the middle of the central shaft of the horizontal screw (23) in the U-shaped shell (21), and first arc-shaped stirring rods (27) are arranged between the first stirring rod mounting plates (26) at the ends and the middle.
3. A screw conveyor for a hopper according to claim 2, wherein, The pitch of the screw blade of the horizontal screw (23) at one end close to the outlet end of the horizontal shell (22) is lengthened.
4. A screw conveyor for a hopper according to claim 1, wherein A connecting port (35) for connecting with the horizontal shell (22) is arranged on the side wall of the vertical shell (31), and a feeding guide cylinder (36) is arranged in the connecting port (35).
5. A screw conveyor for a hopper according to claim 4, wherein, The pitch of the screw blade of the vertical screw (32) below the connecting port (35) is smaller than the pitch of the screw blade of the vertical screw (32) above the connecting port (35).
6. A screw conveyor for a hopper according to claim 5, wherein, The vertical shell (31) is composed of a plurality of separate shells connected in sequence.
7. A screw conveyor for a hopper according to claim 1, wherein Second stirring rod mounting plates (57) are arranged at both ends of the central shaft of the oblique upward screw (54) in the oblique upward U-shaped shell (51), and a second arc-shaped stirring rod (58) is arranged between the two second stirring rod mounting plates (57).
8. A screw conveyor for a hopper according to claim 7, wherein A U-shaped discharge port scraper (59) is arranged on the central shaft of the oblique upward screw (54) in the vertical discharge cylinder (53).
9. A screw conveyor for a hopper according to claim 8, wherein, An inspection port (510) is arranged at the top of the vertical discharge cylinder (53).
10. A screw conveyor for a hopper according to claim 1, wherein The hopper (1) is installed on a hopper support (6), and a feeding port (7) and a bag filter connecting port (8) are arranged at the top of the hopper (1).