Efficient grading wheel for grading machine

Abstract

The efficient grading wheel comprises an upper end plate and a lower installation ring, grading blades are arranged between the upper end plate and the lower installation ring, an inverted-cone-shaped body is fixedly installed on the upper surface of the upper end plate, and a sealing ring is fixedly installed on the lower surface of the lower installation ring. A plurality of annular sealing bulges are arranged on the lower surface of the sealing ring; the materials fall onto the inverted cone-shaped body, the inverted cone-shaped body rotates to throw the materials to the inner wall of the outer shell, fine particles adsorbed on large particles are scattered through vibration, agglomerated false particles are also scattered through vibration, the scattered materials fall into a grading area of the grading wheel under the action of gravity, and the grading efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a grading wheel. Background Art

[0002] In the field of material grading, the classifier plays a crucial role. There are various types of classifiers on the market at present. However, the grading wheels of traditional classifiers have certain limitations in terms of feeding and discharging methods. Most grading wheels of classifiers adopt the method of feeding from the bottom and discharging from the top, which is prone to situations such as material accumulation and blockage, affecting the grading efficiency. The flow of materials in the classifier is easily blocked, resulting in a relatively small amount of materials that can be processed per unit time and unable to meet the needs of large-scale production. Summary of the Utility Model

[0003] In order to make up for the above deficiencies, the utility model provides an efficient grading wheel for a classifier that can effectively improve the grading efficiency in view of the above defects.

[0004] The technical solution of the utility model is: an efficient grading wheel for a classifier, including an upper end plate and a lower mounting ring. A grading blade is provided between the upper end plate and the lower mounting ring. A inverted cone body is fixedly installed on the upper surface of the upper end plate. A sealing ring is fixedly installed on the lower surface of the lower mounting ring. A plurality of annular sealing protrusions are provided on the lower surface of the sealing ring.

[0005] As a preferred technical solution, a material dispersing sheet is fixedly installed on the conical surface of the inverted cone body.

[0006] As a preferred technical solution, the upper edge of the material dispersing sheet extends obliquely towards the small end of the inverted cone body.

[0007] As a preferred technical solution, the upper edge of the material dispersing sheet is parallel to the upper end plate.

[0008] As a preferred technical solution, a blade lower mounting groove is provided on the lower mounting ring. The lower end of the grading blade is inserted into the blade lower mounting groove. The blade lower mounting groove has an opening on the outer peripheral surface of the lower mounting ring. A lower retaining ring for blocking the grading blade is fixedly installed on the outer peripheral surface of the sealing ring.

[0009] As a preferred technical solution, a blade upper mounting groove is provided on the lower surface of the upper end plate. The upper end of the grading blade is clamped in the blade upper mounting groove. The blade upper mounting groove has an opening on the outer peripheral surface of the upper end plate. An upper retaining ring for blocking the upper end of the grading blade is provided at the large end of the inverted cone body.

[0010] As a preferred technical solution, an annular sealing groove for cooperating with the annular sealing protrusion is provided at the upper end of the inner housing.

[0011] As a preferred technical solution, the lower retaining ring also sleeves on the upper end of the inner housing.

[0012] Due to the adoption of the above technical solution, the high-efficiency classification wheel for a classifier includes an upper end plate and a lower mounting ring. A classification blade is provided between the upper end plate and the lower mounting ring. A reverse cone body is fixedly installed on the upper surface of the upper end plate. A sealing ring is fixedly installed on the lower surface of the lower mounting ring. A plurality of annular sealing protrusions are provided on the lower surface of the sealing ring; when the material falls onto the reverse cone body, the reverse cone body rotates to throw the material towards the inner wall of the outer casing, the fine particles adsorbed on the large particles are shaken off, and the agglomerated pseudo-particles are also shaken off. After being shaken off, the material falls to the classification area of the classification wheel under the action of gravity, improving the classification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0014] Figure 2 is a schematic diagram of the installation state of an embodiment of the present invention;

[0015] Figure 3 is Figure 2 a partial enlarged view of I in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] As Figure 1 、 Figure 2 and Figure 3 shown, the high-efficiency classification wheel for a classifier includes an upper end plate 1 and a lower mounting ring 2. A classification blade 3 is provided between the upper end plate 1 and the lower mounting ring 2. A reverse cone body 4 is fixedly installed on the upper surface of the upper end plate 1. A sealing ring 5 is fixedly installed on the lower surface of the lower mounting ring 2. A plurality of annular sealing protrusions 6 are provided on the lower surface of the sealing ring 5. The material is added from the top feed port, and the material falls onto the reverse cone body 4. The reverse cone body 4 rotates to throw the material towards the inner wall of the outer casing. The fine particles adsorbed on the large particles are shaken off and at the same time the agglomerated pseudo-particles are also shaken off. After being shaken off, the material falls to the classification area of the classification wheel under the action of gravity. The fine powder particles overcome the centrifugal force generated by the rotation of the classification wheel under the action of negative pressure attraction and pass through the classification wheel blades to be separated. The fineness of the separated fine powder can be adjusted, that is, when the rotation speed of the classification wheel is high, the centrifugal force is large. When the negative pressure carries the powder particles through, the resistance is large. Only the finer particles that obtain kinetic energy can overcome the resistance and pass through. Therefore, when the rotation speed of the classification wheel is high, the classification particle size is fine, and when the rotation speed of the classification wheel is low, the classification particle size is coarse. The coarse powder is discharged from the coarse powder discharge port under the action of gravity.

[0017] A material scattering sheet 7 is fixedly installed on the conical surface of the reverse cone body 4. The material scattering sheet 7 further improves the material dispersion effect, making it easier for the fine particles adsorbed on the large particles and the agglomerated pseudo-particles to be shaken off. The upper edge of the material scattering sheet 7 extends obliquely towards the small end of the reverse cone body 4.

[0018] Preferably, the upper edge of the bulk material sheet 7 is parallel to the upper end plate 1.

[0019] A blade lower mounting groove 8 is provided on the lower mounting ring 2, the lower end of the grading blade 3 is inserted into the blade lower mounting groove 8, the blade lower mounting groove 8 has an opening on the outer peripheral surface of the lower mounting ring 2, and a lower retaining ring 9 for blocking the grading blade 3 is fixedly mounted on the outer peripheral surface of the sealing ring 5. The lower retaining ring 9 can effectively prevent the grading blade from moving out of the blade lower mounting groove 8, and through the opening, the installation of the grading blade can be more convenient.

[0020] A blade upper mounting groove is provided on the lower surface of the upper end plate 1, the upper end of the grading blade 3 is clamped in the blade upper mounting groove, the blade upper mounting groove has an opening on the outer peripheral surface of the upper end plate 1, and an upper retaining ring 10 for blocking the upper end of the grading blade 3 is provided at the large end of the inverted cone body 4. The upper retaining ring 10 can effectively prevent the grading blade from moving out of the blade upper mounting groove, and through the opening, the installation of the grading blade can be more convenient.

[0021] An annular sealing groove 11 for cooperating with the annular sealing protrusion 6 is provided at the upper end of the inner housing 11. The sealing effect is further improved.

[0022] The lower retaining ring 9 also sleeves on the upper end of the inner housing 11. The lower retaining ring 9 plays a role in limiting and sealing, preventing fine particles from escaping.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency classifying wheel for a classifier, characterized in that: It includes an upper end plate and a lower mounting ring, with grading blades arranged between the upper end plate and the lower mounting ring, an inverted cone fixedly mounted on the upper surface of the upper end plate, a sealing ring fixedly mounted on the lower surface of the lower mounting ring, and a plurality of annular sealing protrusions arranged on the lower surface of the sealing ring.

2. The high-efficiency classifying wheel for a classifier according to claim 1, characterized in that: The conical surface of the inverted cone is fixedly mounted with bulk pieces.

3. The high-efficiency classifying wheel for a classifier according to claim 2, characterized in that: The upper edge of the bulk sheet extends obliquely toward the small end of the inverted cone.

4. The high-efficiency classifying wheel for a classifier according to claim 2, characterized in that: The upper edge of the bulk sheet is parallel to the upper end plate.

5. The high-efficiency classifying wheel for a classifier according to claim 1, characterized in that: The lower mounting ring is provided with a blade lower mounting groove, in which the lower end of the grading blade is inserted, and the blade lower mounting groove is provided with an opening on the outer circumference of the lower mounting ring, and a lower blocking ring for blocking the grading blade is fixedly mounted on the outer circumference of the sealing ring.

6. The high-efficiency classifying wheel for a classifier according to claim 1, characterized in that: The lower surface of the upper end plate is provided with a blade upper mounting groove, in which the upper end of the grading blade is clamped, and the blade upper mounting groove is provided with an opening on the outer peripheral surface of the upper end plate, and the large end of the inverted cone is provided with an upper retaining ring for blocking the upper end of the grading blade.

7. The high-efficiency classifying wheel for a classifier according to claim 5, characterized in that: The upper end of the inner shell is provided with an annular sealing groove matched with the annular sealing protrusion.

8. The high-efficiency classifying wheel for a classifier according to claim 7, characterized in that: The lower retaining ring is also sleeved on the upper end of the inner shell.

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