A spiral sorting machine with multi-level screening function

By designing a multi-level screening function with inner and outer spiral channels, the problem of material residue interference in spherical particles is solved, and the effective screening of spherical particles is achieved. Through the design of screening tracks with inner and outer spiral channels, the screening track design is realized, solving the technical problems that cannot be solved in the existing technology, solving the problem of separation error in the existing technology, and improving the separation efficiency and accuracy.

CN224486785UActive Publication Date: 2026-07-14WUHAN YELLOW CRANE TOWER NEW MATERIAL TECH DEV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN YELLOW CRANE TOWER NEW MATERIAL TECH DEV
Filing Date
2025-08-14
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

When the slag content in spherical particles is high, the existing spiral separator causes the slag to interfere with the running path of the spherical particles, resulting in incorrect separation and screening.

Method used

The spiral separator with multi-level screening function is designed with inner and outer spiral channels. The inner spiral channel has a steep slope for coarse screening of slag, while the outer spiral channel has a gentle slope for fine screening of spherical materials. It uses centrifugal force and gravity for screening and recovers qualified products and defective products through different discharge ports.

Benefits of technology

It achieves effective screening of spherical materials, improves separation efficiency, and ensures the accuracy and efficiency of screening.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a spiral sorting machine with multilayer screening function, including feeding mechanism and first bottom plate, the first bottom plate is fixed with support pipe, the support pipe is slidably connected with the main pipe, the support pipe and main pipe are connected through bolt fastening, the main pipe is fixed with outer spiral channel and inner spiral channel, the outer spiral channel and inner spiral channel are respectively around the main pipe from top to bottom and distribute spirally, the inner spiral channel is located the inside of outer spiral channel, the top of main pipe is installed with detachable feeding hopper, and the feeding mechanism adds material to the inner spiral channel through detachable feeding hopper. The utility model discloses screening effect is good, and convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of screening technology, and in particular to a spiral separator with multi-level screening function. Background Technology

[0002] In cases where spherical particles have a high slag content, excessive slag without separation by inner and outer coarse and fine screens will severely interfere with the movement of the spherical particles during the spiral motion, leading to mis-selection and ineffective separation. Chinese patent CN 208976056 U discloses a spiral separator that collects materials of different densities by adjusting the size of the trough. However, because the inner and outer spiral screen tracks have the same slope angle, and the slag consists of non-spherical particles, centrifugal screening is impossible within the spiral tracks. To efficiently distinguish spherical particles in a short time, we propose a spiral separator with multi-level screening capabilities. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a spiral separator with multi-level screening function.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A spiral separator with multi-level screening function includes a feeding mechanism and a first base plate. A support pipe is fixed on the first base plate, and a main pipe is slidably sleeved inside the support pipe. The support pipe and the main pipe are fastened together by bolts. An outer spiral channel and an inner spiral channel are fixed on the main pipe. The outer spiral channel and the inner spiral channel are spirally distributed around the main pipe from top to bottom. The inner spiral channel is located inside the outer spiral channel. A detachable feeding hopper is installed at the top of the main pipe. The feeding mechanism adds material into the inner spiral channel through the detachable feeding hopper.

[0006] Preferably, the bottom four corners of the first base plate are each equipped with a first brake caster.

[0007] Preferably, the inner wall of the support tube is provided with an annular support boss, and the bottom end of the main tube is placed on the support boss.

[0008] Preferably, the detachable feeding hopper includes a hopper, a limiting rod, and a limiting ring. The limiting rod is fixed to the bottom of the hopper, the limiting rod is slidably sleeved inside the main pipe, and the limiting ring is fixedly sleeved on the limiting rod and the limiting ring is snapped onto the top of the main pipe.

[0009] Preferably, the top of the first base plate is provided with a qualified product recycling tank and a defective product recycling tank. The bottom end of the outer spiral channel is connected to a first discharge port, through which the outer spiral channel discharges material into the qualified product recycling tank. The bottom end of the inner spiral channel is connected to a second discharge port, through which the inner spiral channel discharges material into the defective product recycling tank.

[0010] Preferably, the feeding mechanism includes a second base plate, a storage bin, a conveying pipe, an arc-shaped guide pipe, a motor, a spiral feeding shaft, and a feed inlet. The storage bin is fixed to the top of the second base plate, and the conveying pipe is fixed through the storage bin. A feed inlet is provided at the bottom side of the conveying pipe. The motor is installed at the top of the conveying pipe, and the output shaft of the motor passes through the conveying pipe and is connected to the spiral feeding shaft. The top of the conveying pipe is connected to the arc-shaped guide pipe.

[0011] Preferably, a second brake caster is installed at each of the four bottom corners of the second base plate.

[0012] Preferably, the top of the storage bin is fitted with a lid, and the bottom of the storage bin has a sloping structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, the support pipe and main pipe are easy to disassemble and assemble, facilitating maintenance; the first base plate can be easily moved via the first brake caster, and locked after reaching the designated position, making it convenient and flexible to use;

[0015] 2. In this utility model, the feeding mechanism adds material into the inner spiral channel through a detachable feeding hopper. Screening is performed using two layers of spiral screening tracks: an outer spiral channel and an inner spiral channel. The slope angles and widths of the inner and outer spiral tracks are different. The inner spiral channel is for coarse screening of granular slag, as non-spherical particles cannot undergo centrifugal screening within the spiral track. The outer spiral channel is mainly for fine screening of particles of different sizes. In this design, the inner spiral channel has a steep slope with a low coefficient of friction, while the outer spiral channel is suitable for a gentle slope. The design primarily utilizes the kinematic laws of centrifugal force and gravity to effectively screen spherical materials for good and bad products. The outer spiral channel discharges material into the qualified product recovery trough through the first discharge port, recovering qualified products. The inner spiral channel discharges material into the defective product recovery trough through the second discharge port, recovering defective products. A limiting ring is fitted onto the top of the main pipe, facilitating the assembly and disassembly of the hopper. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a spiral separator with multi-level screening function proposed in this utility model;

[0017] Figure 2 This is a cross-sectional view of the outer spiral channel and the inner spiral channel of a spiral separator with multi-level screening function proposed in this utility model;

[0018] Figure 3 A schematic diagram of the connection structure between the support pipe and the main pipe of a spiral separator with multi-level screening function proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the detachable feeding hopper of a spiral separator with multi-level screening function proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the feeding mechanism of a spiral separator with multi-level screening function proposed in this utility model;

[0021] Figure 6 for Figure 5 A schematic diagram of the first partial structure;

[0022] Figure 7 for Figure 5 A schematic diagram of the second local structure.

[0023] In the diagram: 1 First base plate, 2 First brake caster, 3 Defective product recycling tank, 4 Qualified product recycling tank, 5 Feeding mechanism, 51 Second base plate, 52 Second brake caster, 53 Storage bucket, 54 Bucket lid, 55 Conveying pipe, 56 Arc-shaped guide pipe, 57 Motor, 58 Spiral feeding shaft, 59 Inlet, 6 Support pipe, 7 Main pipe, 8 Outer spiral channel, 9 Inner spiral channel, 10 Detachable feeding hopper, 101 Hopper, 102 Limiting rod, 103 Limiting ring, 11 Bolt, 12 Second discharge port, 13 First discharge port. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1 , Figure 2 , Figure 3A spiral separator with multi-level screening function includes a feeding mechanism 5 and a first base plate 1. First brake casters 2 are installed at the four corners of the bottom of the first base plate 1, allowing for easy movement of the first base plate 1. Once at the designated position, the first brake casters 2 are locked, providing convenient and flexible operation. A support pipe 6 is fixed on the first base plate 1, with a main pipe 7 slidably sleeved inside the support pipe 6. An annular support boss is provided on the inner wall of the support pipe 6, and the bottom end of the main pipe 7 rests on the support boss. The support pipe 6 and the main pipe 7 are fastened together by bolts 11, facilitating easy disassembly and maintenance. An outer spiral channel 8 and an inner spiral channel 9 are fixed on the main pipe 7, spirally distributed from top to bottom around the main pipe 7. The inner spiral channel 9 is located inside the outer spiral channel 8. Screening is performed through these two layers of spiral screening tracks. The two outer spiral tracks have different slope angles and widths. The inner spiral channel 9 is for coarse screening of granular slag, because the slag is non-spherical and cannot undergo centrifugal screening in the spiral track. The outer spiral channel 8 is mainly for fine screening of particles of different sizes. In this design, the inner spiral channel 9 has a steep slope with a low coefficient of friction, while the outer spiral channel 8 is suitable for a gentle slope. A detachable feeding hopper 10 is installed at the top of the main pipe 7. The feeding mechanism 5 adds material to the inner spiral channel 9 through the detachable feeding hopper 10. A qualified product recovery trough 4 and a defective product recovery trough 3 are placed on the top of the first base plate 1. The bottom of the outer spiral channel 8 is connected to the first discharge port 13. The outer spiral channel 8 discharges material into the qualified product recovery trough 4 through the first discharge port 13. The bottom of the inner spiral channel 9 is connected to the second discharge port 12. The inner spiral channel 9 discharges material into the defective product recovery trough 3 through the second discharge port 12.

[0026] Reference Figure 4 The detachable feeding hopper 10 includes a hopper 101, a limiting rod 102, and a limiting ring 103. The limiting rod 102 is fixed at the bottom of the hopper 101. The limiting rod 102 is slidably sleeved inside the main pipe 7. The limiting ring 103 is fixedly sleeved on the limiting rod 102. The limiting ring 103 is snapped onto the top of the main pipe 7, thereby facilitating the assembly and disassembly of the hopper 101.

[0027] Reference Figure 5 , Figure 6 , Figure 7The feeding mechanism 5 includes a second base plate 51, a storage bin 53, a conveying pipe 55, an arc-shaped guide pipe 56, a motor 57, a spiral feeding shaft 58, and a feed inlet 59. The storage bin 53 is fixed to the top of the second base plate 51, and the conveying pipe 55 is fixed through the storage bin 53. The feed inlet 59 is opened at the bottom side of the conveying pipe 55. The motor 57 is installed at the top of the conveying pipe 55, and the output shaft of the motor 57 passes through the conveying pipe 55 and is connected to the spiral feeding shaft 58. The top of the conveying pipe 55 is connected to the arc-shaped guide pipe 56. The material guide pipe 56 and the bottom four corners of the second base plate 51 are equipped with second brake casters 52. The top of the storage barrel 53 is equipped with a barrel cover 54. The bottom of the storage barrel 53 is a sloping structure. The material is stored in the storage barrel 53. The material enters the conveying pipe 55 through the feed port 59. The motor 57 drives the spiral feeding shaft 58 to rotate. The spiral feeding shaft 58 lifts the material in the conveying pipe 55 and then guides it into the hopper 101 through the arc-shaped guide pipe 56, realizing convenient material conveying and feeding.

[0028] Working principle: During use, the support pipe 6 and main pipe 7 are easy to disassemble and assemble, facilitating maintenance; the first base plate 1 can be easily moved via the first brake caster 2, and locked after reaching the designated position, making it convenient and flexible to use. The feeding mechanism 5 adds material into the inner spiral channel 9 through the detachable feeding hopper 10. Screening is performed through two layers of spiral screening tracks: the outer spiral channel 8 and the inner spiral channel 9. The slope angles and widths of the inner and outer spiral tracks are different. The inner spiral channel 9 is used for coarse screening of granular slag, because non-spherical particles cannot undergo centrifugal screening in the spiral track. The outer spiral channel 8 is mainly used to complete the fine screening of particles of different sizes. In this scheme, the inner spiral channel 9 is a steep slope with a low coefficient of friction, while the outer spiral channel 8 is suitable for a gentle slope. It mainly utilizes the kinematic laws of centrifugal force and gravity to effectively screen the good and bad products of spherical materials. The outer spiral channel 8 discharges the material into the qualified product recovery tank 4 through the first discharge port 13 to recover qualified products. The inner spiral channel 9 discharges the material into the defective product recovery tank 3 through the second discharge port 12 to recover defective products. The limiting ring 103 is sleeved on the top of the main pipe 7 to facilitate the disassembly and assembly of the hopper 101.

[0029] The operating principle of the feeding mechanism 5 is as follows: the material is stored in the storage bucket 53, and the material enters the conveying pipe 55 through the feed port 59. The motor 57 drives the spiral feeding shaft 58 to rotate. The spiral feeding shaft 58 lifts the material in the conveying pipe 55 and then guides it into the hopper 101 through the arc-shaped guide pipe 56, thus realizing convenient material conveying and feeding.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spiral separator with multi-level screening function, comprising a feeding mechanism (5) and a first base plate (1), characterized in that, A support tube (6) is fixed on the first base plate (1). A main tube (7) is slidably sleeved inside the support tube (6). The support tube (6) and the main tube (7) are fastened together by bolts (11). An outer spiral channel (8) and an inner spiral channel (9) are fixed on the main tube (7). The outer spiral channel (8) and the inner spiral channel (9) are spirally distributed around the main tube (7) from top to bottom. The inner spiral channel (9) is located inside the outer spiral channel (8). A detachable feeding hopper (10) is installed at the top of the main tube (7). The feeding mechanism (5) adds material into the inner spiral channel (9) through the detachable feeding hopper (10).

2. The spiral separator with multi-level screening function according to claim 1, characterized in that, The first base plate (1) is equipped with first brake casters (2) at the four bottom corners.

3. A spiral separator with multi-level screening function according to claim 1, characterized in that, The inner wall of the support tube (6) is provided with an annular support boss, and the bottom end of the main tube (7) is placed on the support boss.

4. A spiral separator with multi-level screening function according to claim 1, characterized in that, The detachable feeding hopper (10) includes a hopper (101), a limiting rod (102), and a limiting ring (103). The limiting rod (102) is fixed at the bottom of the hopper (101). The limiting rod (102) is slidably sleeved in the main pipe (7). The limiting ring (103) is fixedly sleeved on the limiting rod (102). The limiting ring (103) is snapped onto the top of the main pipe (7).

5. A spiral separator with multi-level screening function according to claim 1, characterized in that, The top of the first base plate (1) is provided with a qualified product recycling tank (4) and a defective product recycling tank (3). The bottom end of the outer spiral channel (8) is connected to a first discharge port (13). The outer spiral channel (8) discharges material into the qualified product recycling tank (4) through the first discharge port (13). The bottom end of the inner spiral channel (9) is connected to a second discharge port (12). The inner spiral channel (9) discharges material into the defective product recycling tank (3) through the second discharge port (12).

6. A spiral separator with multi-level screening function according to claim 1, characterized in that, The feeding mechanism (5) includes a second base plate (51), a storage bin (53), a conveying pipe (55), an arc-shaped guide pipe (56), a motor (57), a spiral feeding shaft (58), and a feed inlet (59). The storage bin (53) is fixed on the top of the second base plate (51). The conveying pipe (55) is fixed through the storage bin (53). The feed inlet (59) is opened on the bottom side of the conveying pipe (55). The motor (57) is installed at the top of the conveying pipe (55). The output shaft of the motor (57) passes through the conveying pipe (55) and is connected to the spiral feeding shaft (58). The top of the conveying pipe (55) is connected to the arc-shaped guide pipe (56).

7. A spiral separator with multi-level screening function according to claim 6, characterized in that, The bottom four corners of the second base plate (51) are each equipped with a second brake caster (52).

8. A spiral separator with multi-level screening function according to claim 6, characterized in that, The top of the storage bin (53) is fitted with a lid (54), and the bottom of the storage bin (53) is a sloping structure.