CN209968359U

CN209968359U - Granulator circular mold

Info

Publication number: CN209968359U
Application number: CN201821428430.3U
Authority: CN
Inventors: 石华山
Original assignee: Jiangmen Ou De Jinghua Light Industrial Machinery Co Ltd
Current assignee: Oped Servo Motor Energy Saving System Co ltd
Priority date: 2018-08-31
Filing date: 2018-08-31
Publication date: 2020-01-21
Anticipated expiration: 2028-08-31

Abstract

The utility model provides a granulator ring mould, this ring mould are for having the loop forming element of wall, a plurality of ring mode holes that run through wherein have been laid to the wall, the inner chamber in ring mode hole is from being close to ring mould circumference center and radially including in proper order: the feeding section is provided with an inlet which is close to the center of the circumference of the circular mold and is in a regular hexagon shape; an extrusion section joined to the feed section to form a circular junction, the junction being smaller than the inlet; the feeding section is an inward-contracted conical cavity formed by connecting an inlet and a joint part through a transition curved surface; the ring die holes are arranged in a honeycomb shape on the wall surface, and the regular hexagons of every two adjacent inlets have a common edge. The technical scheme greatly reduces the reactive area on the working surface of the ring die, improves the utilization rate of the working surface of the ring die, and reduces the reactive power consumption caused by the reactive area, thereby reducing the energy consumption of equipment and playing a role in energy conservation.

Description

Granulator circular mold

Technical Field

The utility model relates to a granulator technical field especially relates to granulator circular mold.

Background

The ring die granulation molding technology is also called a rotary rolling extrusion granulation technology, is a technology for preparing powder materials into granules by rotary rolling extrusion compression, and is widely applied to the technical fields of biomass solidification molding, feed processing, pharmacy, energy, chemical industry and the like. The ring die granulation process comprises the following steps: the powder material enters a granulating chamber, enters a pressing area between the ring die and the pressing roller under the drive of the ring die and the pressing roller, is gradually compressed and molded along with the rotation of the ring die and the pressing roller and the continuous reduction of the pressing area, is extruded from a ring die hole, and is cut off to finally form required particles. In the process, the ring die is the most important working component of the granulator, the performance of the ring die directly influences the production efficiency and the product quality of the granulator, and the energy consumption of the whole granulator is also greatly influenced. Referring to fig. 1, 2 and 3, the inner cavity of the existing ring die hole 11 is generally straight, the inlet 113 of the ring die hole 11 is circular, a large number of reactive areas 20 are reserved between the ring die holes 11, so that the radial pressure of the ring die is increased during working, the torque required during working of the ring die is increased under the condition that a friction system between the ring die and a material is not changed, the material is not favorably pressed into the ring die hole, and the energy consumption of equipment is increased.

The utility model relates to terms and common general knowledge, and GB/T20192 + 2006 general technical Specification for Ring die pelleter (Ring die granulation Molding technology and Equipment) (scientific Press, first edition of 12 months in 2013).

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a granulator ring mould can reduce the energy consumption of equipment and play an energy-saving effect under the premise of ensuring the product quality and the yield.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is:

granulator ring mould, this ring mould is the loop forming element that has the wall, a plurality of ring mould holes that run through wherein have been laid to the wall, the inner chamber in ring mould hole radially includes in proper order from being close to ring mould circumference center: the feeding section is provided with an inlet which is close to the center of the circumference of the circular mold and is in a regular hexagon shape; an extrusion section joined to the feed section to form a circular junction, the junction being smaller than the inlet; the feeding section is an inward-contracted conical cavity formed by connecting an inlet and a joint part through a transition curved surface; the ring die holes are arranged in a honeycomb shape on the wall surface, and the regular hexagons of every two adjacent inlets have a common edge.

This technical scheme sets up the toper cavity of inside shrink through the feeding section at the ring die hole, the entry of every feeding section has a common limit for regular hexagon and the regular hexagon of every two adjacent entries, all entries form inseparable honeycomb on the ring die wall and arrange, reduce the planar part that does not act on the feeding promptly reactive plane's area, the utilization ratio of ring die working face has been improved, the reactive power consumption that the reactive power area brought has been reduced, thereby the energy consumption of equipment has been reduced, energy-conserving effect has been played.

As an improvement of the technical scheme, the section of the transition curved surface along the circumferential radial direction of the ring die is arc-shaped, so that the mechanical strength of the wall of the hole of the ring die can be improved, and the service life of the hole of the ring die can be prolonged.

As another improvement of the technical scheme, the section of the transition curved surface along the circumferential radial direction of the ring die is linear.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and should not be construed as limiting the invention.

FIG. 1 is a schematic view of a prior art ring mold structure;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic perspective view of a ring mold according to embodiment 1 of the present invention;

fig. 4 is a schematic view of a ring mold structure according to embodiment 1 of the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 4;

FIG. 6 is an enlarged view of portion C of FIG. 4;

FIG. 7 is an enlarged view of portion D of FIG. 6;

fig. 8 is a schematic view of a ring die hole structure of embodiment 2 of the present invention;

fig. 9 is an enlarged view of a portion E of fig. 8.

Detailed Description

Referring to fig. 3, in example 1, the ring die 1 of the granulator is a ring-shaped member having a ring-shaped wall 10, and a plurality of ring die holes 11 are arranged on the wall 10 in a honeycomb shape.

Referring to fig. 4, 5, 6, and 7, the ring die hole 11 penetrates the wall surface 10 to form an inner cavity with two ends connected, wherein one end near the center of the circumference of the ring die is an inlet 113, and the other end is an outlet 115. The inner cavity of each ring die hole sequentially comprises from the center close to the circumference of the ring die along the radial direction: a feed section 110, the feed section 110 having a regular hexagonal inlet 113; and an extrusion section 111, wherein the extrusion section 111 is arranged immediately behind the feeding section 110, and the joint of the extrusion section 111 and the feeding section 110 is a circular joint part 112. The feed section 110 is a cavity formed by connecting the inlet 113 and the junction 112 through the transition curve 114, and the transition curve 114 has a tendency to contract inward because the junction 112 has a smaller area than the inlet 113, so that the feed section 110 becomes a tapered cavity.

All the ring die holes 11 are arranged on the wall surface 10 in a honeycomb shape, and the regular hexagon of each two adjacent ring die hole inlets 113 has a common edge, namely, both sides of the common edge are inclined surfaces of the tapered cavity of the feeding section.

When equipment began to operate, the powder material is at the ring mould, when being impressed ring die hole under the drive of compression roller, the entry of slope more is favorable to the material to get into ring die hole, and reduce the reactive area between the original ring die hole to minimum, almost whole wall all plays positive action to impressing of material, improved the utilization ratio of ring mould working face greatly, reduced the reactive power consumption that reactive area brought, thereby reduced the energy consumption of equipment, energy-conserving effect has been played.

Referring to fig. 7, in this embodiment 1, the section of the transition curved surface 114 along the circumferential radial direction of the ring die is arc-shaped (the actual shape can be obtained by software solidworks, etc.), so that the wall thickness between the ring die holes can be increased, and the mechanical strength and the service life of the wall of the ring die hole can be improved.

Referring to embodiment 2 of fig. 8 and 9, the difference from embodiment 1 is that the transition curved surface 114 is linear in radial section along the circumference of the circular mold (the actual shape can be obtained by software solidworks, etc.).

The above description is not intended to limit the present invention, and various embodiments of the present invention may be combined arbitrarily without departing from the spirit of the present invention, and should be regarded as the disclosure of the present invention; within the scope of the technical concept of the present invention, various simple modifications and arbitrary combinations of different embodiments of the technical solution without violating the idea of the present invention should be within the scope of the present invention.

Claims

1. Granulator ring mould, this ring mould is the loop forming element that has the wall, a plurality of ring mould holes that run through wherein have been laid to the wall, its characterized in that, the inner chamber in ring mould hole radially includes in proper order from being close to ring mould circumference center:

the feeding section is provided with an inlet which is close to the circumferential center of the ring die and has a regular hexagon-shaped radial projection, and the projections are adjacent to each other in pairs to form a common edge and are arranged in a honeycomb shape;

an extrusion section joined to the feed section to form a circular junction, the junction being smaller than the inlet;

the feeding section is an inward-contracted conical cavity formed by connecting an inlet and a joint part through a transition curved surface.

2. The ring die of a pelletizer according to claim 1 wherein: the transition curved surface is arc-shaped along the radial section of the circumference of the ring die.

3. The ring die of a pelletizer according to claim 1 wherein: the transition curved surface is linear along the radial section of the circumference of the ring die.