Anti-blocking efficient separation auger and solid-liquid separator

Abstract

The anti-blocking efficient separation auger comprises a rotating shaft, a spiral blade is installed on the outer circumference of the rotating shaft, a cutting part is arranged on the outer edge of the spiral blade, and a cutting edge is arranged on the side, located in the material moving direction, of the cutting part. The cutting part is arranged on the outer edge of the spiral blade, the cutting edge is arranged on the side, located in the material moving direction, of the cutting part, when the auger rotates, plant fibers on the filter screen are cut off through the cutting edge, and therefore the filter screen is effectively prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to the field of solid-liquid separator technology, and in particular to an anti-clogging, high-efficiency separation auger and a solid-liquid separator. Background Technology

[0002] Chinese patent document CN210786444U, published on June 19, 2020, discloses an agricultural solid-liquid separator, including an auger and a filter screen. The auger is mounted on a frame and rotates via a shaft. The filter screen is fitted over the auger and fixed to the frame. The auger's shaft is connected to the output shaft of a motor for transmission. When the auger rotates, it compresses the material, thus achieving solid-liquid separation. However, during use, because the filter screen is made of welded steel bars forming a ring, plant fibers often adhere to its interior. These fibers clog the filter pores, affecting the liquid separation efficiency. To clear the filter screen, the current method involves opening the cover above the filter screen after stopping the machine and using a high-pressure water gun to backwash the filter screen without feeding material. However, because the filter screen is fixedly installed, the lower part of the filter screen is not easily washed.

[0003] In order to solve the problem of filter clogging, our company's technicians, after research, referred to... Figure 1 This refers to the auger structure currently used in solid-liquid separators. The spiral blades 20 on the auger are made from rectangular plates during material feeding, then undergo spiral bending, and finally welded to the rotating shaft 10. See [link to documentation for spiral blade 20]. Figure 2 The outer edge of the spiral blade 20 forms an angle with the inner wall of the filter screen in the direction of material movement. During operation, this angle compresses the material, causing the plant fibers 40 to wrap around the steel strips of the filter screen. In response to the above situation, our company's technical personnel have proposed this application for an anti-clogging, high-efficiency separating auger and a solid-liquid separator. Utility Model Content

[0004] The purpose of this invention is to provide an anti-clogging, high-efficiency separating auger and a solid-liquid separator. By setting a cutting part on the outer edge of the spiral blades, and setting a cutting edge on the side located in the material movement direction, the plant fibers on the filter screen are cut by the cutting edge when the auger rotates, thereby effectively preventing the filter screen from clogging.

[0005] To achieve the above objectives, this utility model provides an anti-clogging, high-efficiency separating auger, including a rotating shaft, with spiral blades mounted on the outer circumference of the rotating shaft, and a cutting portion provided on the outer edge of the spiral blades, the cutting portion having a cutting edge on the side located in the material movement direction.

[0006] The cutting section is integrally formed with the spiral blade.

[0007] The cutting edge has a notch, thus forming a toothed edge.

[0008] The rotating shaft is equipped with two sets of helical blades.

[0009] The pitch L of the helical blade is 100~200mm.

[0010] The thickness of the spiral blade is 5~10mm.

[0011] The spiral blades are concave on the side facing the material movement direction.

[0012] A solid-liquid separator employs the aforementioned anti-clogging, high-efficiency separation auger.

[0013] Compared with the prior art, this utility model has the following technical effects:

[0014] 1. This utility model provides a cutting part on the outer edge of the spiral blade. The cutting part has a cutting edge on the side located in the material movement direction. When the auger rotates, the cutting edge cuts the plant fibers on the filter screen, thereby effectively preventing the filter screen from clogging.

[0015] 2. The cutting edge of this utility model is provided with a notch, thereby forming a toothed blade, which improves the cutting effect of the cutting edge on plant fibers.

[0016] 3. The spiral blade of this utility model has a concave side on the side facing the material movement direction. When the auger is conveying materials, the materials can be concentrated in the spiral blade, reducing the pressure of the spiral blade on the material towards the filter screen. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the screw conveyor structure in an existing solid-liquid separator.

[0019] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0020] Figure 3 This invention proposes an anti-clogging, high-efficiency separating auger.

[0021] Figure 4 for Figure 3 Enlarged diagram of point B in the middle.

[0022] Figure 5 This is a schematic diagram of the structure of the present invention with a notch on the cutting edge.

[0023] Figure label:

[0024] 10 rotating shaft, 20 spiral blades, 21 cutting part, 22 cutting edge, 23 notch, 24 concave surface, 30 filter screen, 40 plant fiber. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0026] Example 1:

[0027] Please see Figure 3-5 A high-efficiency, anti-clogging auger includes a rotating shaft 10, with spiral blades 20 mounted on the outer circumference of the shaft 10. The outer edge of each spiral blade 20 has a cutting section 21, with a cutting edge 22 on the side facing the material movement direction. By providing the cutting section 21 on the outer edge of the spiral blades 20, and the cutting edge 22 on the side facing the material movement direction, the plant fibers on the filter screen 30 are cut by the cutting edge 22 when the auger rotates, effectively preventing the filter screen 30 from clogging.

[0028] In this embodiment, the cutting part 21 and the spiral blade 20 are integrally formed. For details, see [link to documentation]. Figure 4 The cutting section 21 is a bevel formed on the outer edge of the spiral blade 20 by machining, and the cutting section 21 forms a cutting edge 22 on one side of the material movement direction. It should be noted that the cutting edge 22 is the blade edge structure.

[0029] Example 2:

[0030] Based on Example 1, see Figure 5 The cutting edge 22 has a notch 23, which forms a toothed blade and improves the cutting effect of the cutting edge 22 on plant fiber 40.

[0031] Example 3:

[0032] In this embodiment, two sets of spiral blades 20 are provided on the rotating shaft 10. The two sets of spiral blades 20 are arranged to rotate 180 degrees. This facilitates the manufacturing of the spiral blades 20 and improves the conveying and extrusion effect of the auger.

[0033] Example 4:

[0034] In this embodiment, the pitch L of the spiral blade 20 is 100~200mm. Through experiments, this range shows that the conveying and compressing effect of the auger is the best.

[0035] Example 5:

[0036] In this embodiment, the thickness of the helical blade 20 is 5-10 mm. This provides a certain rigidity while allowing the helical blade 20 to deform during conveying and extrusion. The thickness of the helical blade 20 is selected based on the actual material. In agricultural production, the thickness of the helical blade 20 is 5-6 mm. For conveying and extruding materials, please refer to [reference needed]. Figure 4 The spiral blade 20 will deform to the right, so that the cutting edge 22 contacts the inner wall of the filter screen, thus improving the cutting effect.

[0037] Example 6:

[0038] See Figure 3 The spiral blade 20 has a concave surface 24 on the side facing the material movement direction. When the auger is conveying material, it can concentrate the material inside the spiral blade 20, reducing the squeezing of the material towards the filter screen by the spiral blade 20.

[0039] Example 7:

[0040] A solid-liquid separator employs the aforementioned anti-clogging, high-efficiency separation auger.

[0041] The working principle or operation process of this utility model is as follows:

[0042] See Figure 3 A cutting section 21 is provided on the outer edge of the spiral blade 20. The cutting section 21 has a cutting edge 22 on the side located in the material movement direction. When the auger rotates, the plant fibers on the filter screen 30 can be cut through the cutting edge 22, thereby effectively preventing the filter screen 30 from clogging.

Claims

1. A clog-resistant, high-efficiency separating auger, comprising a rotating shaft (10), wherein spiral blades (20) are mounted on the outer circumference of the rotating shaft (10), characterized in that: The outer edge of the spiral blade (20) is provided with a cutting part (21), and the cutting part (21) is provided with a cutting edge (22) on one side located in the material moving direction.

2. The anti-clogging high-efficiency separating auger according to claim 1, characterized in that: The cutting part (21) and the spiral blade (20) are integrally formed.

3. The anti-clogging high-efficiency separating auger according to claim 1, characterized in that: The cutting edge (22) is provided with a notch (23) to form a toothed edge.

4. The anti-clogging high-efficiency separating auger according to claim 1, characterized in that: Two sets of helical blades (20) are provided on the rotating shaft (10).

5. The anti-clogging high-efficiency separating auger according to claim 1 or 4, characterized in that: The pitch L of the spiral blade (20) is 100~200mm.

6. The anti-clogging high-efficiency separating auger according to claim 1, characterized in that: The thickness of the spiral blade (20) is 5~10mm.

7. The anti-clogging high-efficiency separating auger according to claim 1, characterized in that: The spiral blade (20) has a concave surface (24) on the side located in the material movement direction.

8. A solid-liquid separator, characterized in that: The anti-clogging, high-efficiency separation auger as described in any one of claims 1 to 7 is adopted.

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