CN216864280U

CN216864280U - Granulating roller

Info

Publication number: CN216864280U
Application number: CN202122794103.8U
Authority: CN
Inventors: 张少雷
Original assignee: Beijing Tanlong Environmental Technology Co ltd
Current assignee: Beijing Tanlong Environmental Technology Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-07-01
Anticipated expiration: 2031-11-15

Abstract

One embodiment of the present invention provides a granulating roll comprising: the roller is a hollow cylinder body, and rolls around the central axis of the cylinder body; the roller teeth are arranged on the surface of the cylinder body of the roller at intervals; the surface of the roller is provided with open holes corresponding to the roller teeth, and each roller tooth is internally provided with a blind hole extending along the radial direction of the roller; the bore is aligned with the blind bore to form a cooling passage into the barrel. The utility model aims to provide a granulating roller, wherein a cooling channel communicated with a roller barrel and a roller tooth is formed between the roller barrel and the roller tooth, so that the roller tooth is synchronously cooled when being in direct contact with materials.

Description

Granulating roller

Technical Field

The utility model relates to the field of metallurgical equipment, in particular to a granulating roller.

Background

The granulating roller is widely applied to granulating operation of molten liquid phase materials formed after high-temperature calcination in industries such as coal, metallurgy, building materials and the like. The roll teeth of the granulating roll are parts directly contacted with materials, and work in a severe environment of ultra-high temperature (close to complete austenite phase transition critical temperature) for a long time, so that the mechanical properties and weldability of a plurality of roll teeth are reduced sharply, the roll teeth are caused to fall off, bend and break, the steel slag treatment capacity of the granulating roll is severely limited, and huge cost expenditure is caused to enterprises.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is an object of the present invention to provide a granulation roller with cooling channels communicating between the roll barrel and the teeth so that the teeth are simultaneously cooled when they are in direct contact with the material.

One embodiment of the present invention provides a granulating roll comprising:

the roller is a hollow cylinder body, and rolls around the central axis of the cylinder body;

the roller teeth are arranged on the surface of the cylinder body of the roller at intervals;

the surface of the roller is provided with open holes corresponding to the roller teeth, and each roller tooth is internally provided with a blind hole extending along the radial direction of the roller;

the bore is aligned with the blind bore to form a cooling passage into the barrel.

In one embodiment, further comprising:

and cooling water which is injected into the cylinder and does not fill the whole cylinder.

In one embodiment, the cooling water within the drum enters or leaves one or more of the cooling channels as the drum rolls under the influence of gravity.

In one embodiment, the tip comprises:

the bottom of the inner tooth is fixed on the surface of the cylinder body of the roller, and the inner tooth is internally provided with the blind hole;

the external tooth, outer tooth cover is located the top of internal tooth, and with the top detachably of internal tooth connects.

In one embodiment, the external teeth include:

the tooth sleeve is internally provided with a cavity so as to be sleeved on the top of the inner teeth;

the protruding portion extends from the top of the gear sleeve to two sides along the direction perpendicular to the gear sleeve.

In one embodiment, the direction of extension of the protrusions is the roll direction of the roll.

In one embodiment, the blind hole at least partially overlaps the gear sleeve in the radial direction.

In one embodiment, the outer teeth are fixed to the top of the inner teeth by pins extending in the radial direction.

In one embodiment, further comprising:

and the supporting ribs are connected with the bottoms of the roller teeth so as to support the roller teeth on the surface of the roller body of the roller.

In one embodiment, the surface of the cylinder body comprises a plurality of rows of roller teeth, each row of roller teeth is arranged at intervals along the axial direction, and the roller teeth of two adjacent rows are staggered.

It can be seen that the roller tooth is arranged in the hollow structure with the blind hole inside, and the blind hole is communicated with the inside of the hollow cylinder of the roller through the open hole formed in the surface of the roller so as to form the cooling channel for the roller tooth. The cooling of the roller teeth can be simultaneously realized in the working process of the roller teeth, so that the working environment temperature of the roller teeth is greatly reduced, and the purpose of prolonging the service life of the roller teeth is realized.

The cooling water in the cylinder mainly enters the cooling channel communicated with the bottom of the cylinder to cool the roller teeth corresponding to the cooling channel, and the roller teeth communicated with the bottom of the cylinder are just the part of the roller teeth directly contacted with the material, so that the cooling object can be switched on the basis of not adding additional shunting and driving mechanisms.

Drawings

The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.

Fig. 1 is a schematic view of the structure of a granulating roll of the present invention.

Fig. 2 is a cross-sectional view of a granulating roll of the present invention.

Fig. 3a to 3c are schematic views of positions of cooling water of the granulating roll of the present invention.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which like reference numerals refer to like parts throughout.

"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.

For the sake of simplicity, the drawings are only schematic representations of the parts relevant to the utility model, and do not represent the actual structure of the product. Moreover, in the interest of brevity and understanding, only one of the components having the same structure or function is illustrated schematically or designated in some of the drawings.

The utility model aims to provide a granulating roller, wherein a cooling channel communicated with a roller barrel and a roller tooth is formed between the roller barrel and the roller tooth, so that the roller tooth is synchronously cooled when being in direct contact with materials.

Fig. 1 is a schematic view of the structure of a granulating roll of the present invention. Fig. 2 is a cross-sectional view of a granulating roll of the present invention. As shown in fig. 1 and 2, the present invention provides a granulating roll comprising:

the roller 1 is a hollow cylinder body, and the roller 1 rolls around the central axis of the cylinder body;

the roller teeth 2 are distributed on the surface of the cylinder body of the roller 1 at intervals;

wherein, the surface of the roller 1 is provided with open holes 11 corresponding to the roller teeth 2, and each roller tooth 2 is internally provided with a blind hole 23 extending along the radial direction of the roller 1;

the opening 11 is aligned with the blind bore 23 to form a cooling passage into the barrel.

The granulating roller drives the roller teeth on the surface of the granulating roller to roll and extrude the materials by rolling of the roller. The central axis direction of the roller is arranged along the horizontal direction, and the roller can be cylindrical or other cylindrical shapes. Typically, the teeth on the roll surface are solid for robustness, to provide greater rigidity. There can be damage to the tip due to long term operation in ultra high temperature rings.

The embodiment sets the roller teeth 2 to be hollow structure with blind holes inside, and the blind holes 23 are communicated with the inside of the hollow cylinder of the roller 1 through the open holes 11 arranged on the surface of the roller 1 to form a cooling channel for the roller teeth. The cooling of the roller teeth can be simultaneously realized in the working process of the roller teeth, so that the working environment temperature of the roller teeth is greatly reduced, and the purpose of prolonging the service life of the roller teeth is realized.

Wherein the cooling may be achieved by a coolant, such as cooling water. Preferably, the coolant is flowable. As shown in fig. 2, the cooling water 3 is further included, and the cooling water 3 is injected into the cylinder and does not fill the entire cylinder.

That is, in the gravity direction, the bottom of the interior of the cylinder of the roll 1 is filled with cooling water 3, while the top may be in a state filled with air. With the rolling action of the roller 1, the cooling water 3 inside the cylinder is always kept at the bottom of the cylinder under the action of gravity.

As shown in fig. 3a to 3c, the cooling water 3 in the drum is always kept at the bottom of the drum by gravity and thus enters the cooling channel communicated with the bottom of the drum by gravity, and as the roller 1 rolls, the teeth at the bottom of the roller in the gravity direction become located at the middle or top of the roller, and the cooling water entering therein leaves the cooling channel by gravity.

Therefore, the cooling water in the cylinder mainly enters the cooling channel communicated with the bottom of the cylinder to cool the roller teeth corresponding to the cooling channel, and the roller teeth communicated with the bottom of the cylinder are just the part of the roller teeth directly contacted with the material, so that the cooling objects can be switched on the basis of not adding additional shunting and driving mechanisms.

Further, since the roller teeth are the parts directly contacted with high-temperature materials, the roller 1 has lower internal temperature relative to the roller teeth 2, therefore, the cooling water circulation entering and leaving cooling channels of the embodiment can continuously exchange heat absorbed from the high-temperature roller teeth with the cooling water with lower temperature in the roller 1, thereby saving the step of cooling the cooling water in the roller in a circulation mode.

In order to improve the rigidity of the teeth, as shown in fig. 1, the granulating roll of the present embodiment further comprises:

and the supporting ribs 4 are connected with the bottoms of the roller teeth 2, so that the roller teeth 2 are supported on the surface of the roller body 1.

The supporting ribs 4 may be single or plural, and when a plurality of supporting ribs 4 are included, they may be symmetrically disposed in the circumferential direction of the tip 2 to achieve stable support of the tip 2 and reduce the influence of the hollow structure on the rigidity of the tip 2.

In order to maximize the granulation efficiency and uniformity, as shown in fig. 1, the surface of the cylinder body of the roller 1 may include a plurality of rows of teeth 2, each row of teeth 2 extends along the axial direction of the roller 1, each row includes a plurality of teeth 2 arranged at intervals, and the teeth 2 of two adjacent rows are staggered with each other.

Further, in order to reduce the huge cost expenditure caused by the damage of the roller tooth, as shown in fig. 2, in the present embodiment, the roller tooth 2 includes:

the bottom of the internal tooth 21 is fixed on the surface of the cylinder body of the roller 1, and a blind hole 23 is formed in the internal tooth 21;

and the outer teeth 22 are sleeved on the top of the inner teeth 21, and are detachably connected with the top of the inner teeth 21.

It can be seen that in the present embodiment, the roller teeth 2 are divided into an internal tooth part fixedly connected with the roller 1 and an external tooth part connected with the material, wherein the external tooth part is easy to damage due to direct contact with the material, and then the roller teeth 2 can be updated by replacing the external tooth part, thereby reducing the cost.

In one particular embodiment, as shown in FIG. 2, outer teeth 22 include:

the gear sleeve 221, the gear sleeve 221 has a cavity inside to be sleeved on the top of the inner teeth 21;

and the protruding part 222 extends from the top of the gear sleeve 221 to two sides along the direction perpendicular to the gear sleeve 221.

Specifically, as shown in connection with FIG. 1, the projections 222 extend in the direction of the roll 1.

The projections 222 provide the teeth 2 with a larger contact area than the bottom of the internal teeth 21 to reduce the power requirements of the drive motor for driving the roll of the roll 1 while achieving the same contact pressure, thereby achieving a cost reduction.

As shown in fig. 2, the external teeth 22 are fixed to the top of the internal teeth 21 by pins 24, the pins 24 extending in the radial direction.

The projections 222 extend outwardly from the sleeve 221 in the rolling direction of the roller 1, while the pins 24 for fixing the external teeth 22 to the internal teeth 21 extend in a radial direction, orthogonal to the extension of the projections 222, to avoid the external teeth 22 falling out during rolling.

In a preferred embodiment, blind bore 21 at least partially overlaps gear sleeve 221 in the radial direction, as shown in FIG. 2. That is, the cooling channels may at least partially enable cooling of the outer teeth 22 to enable cooling of the object that most requires cooling.

It can be seen that the embodiment provides the roller tooth with a hollow structure with a blind hole inside, and the blind hole is communicated with the inside of the hollow cylinder of the roller through the open hole formed on the surface of the roller so as to form a cooling channel for the roller tooth. The cooling of the roller teeth can be simultaneously realized in the working process of the roller teeth, so that the working environment temperature of the roller teeth is greatly reduced, and the purpose of prolonging the service life of the roller teeth is realized.

In this document, "a" does not mean that the number of the relevant portions of the present invention is limited to "only one", and "a" does not mean that the number of the relevant portions of the present invention is excluded from "more than one".

Unless otherwise indicated, numerical ranges herein include not only the entire range within its two endpoints, but also several sub-ranges subsumed therein.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention and is not intended to limit the scope of the present invention, and equivalent embodiments or modifications such as combinations, divisions or repetitions of the features without departing from the technical spirit of the present invention are included in the scope of the present invention.

Claims

1. A granulating roll, comprising:

the roller (1) is a hollow cylinder, and the roller (1) rolls around the central axis of the cylinder;

the roller teeth (2) are distributed on the surface of the roller body of the roller (1) at intervals;

wherein the surface of the roller (1) is provided with open holes (11) corresponding to the roller teeth (2), and each roller tooth (2) is internally provided with a blind hole (23) extending along the radial direction of the roller (1);

the bore (11) is aligned with the blind bore (23) to form a cooling passage into the barrel.

2. The granulating roll as set forth in claim 1, further comprising:

and cooling water (3), wherein the cooling water (3) is injected into the cylinder and does not fill the whole cylinder.

3. The granulation roller as claimed in claim 2, characterized in that the cooling water (3) inside said cylinder enters or leaves said cooling channel or channels as the roller (1) rolls under the action of gravity.

4. The granulation roller as claimed in claim 1, characterized in that said teeth (2) comprise:

the bottom of the inner teeth (21) is fixed on the surface of the cylinder body of the roller (1), and the inner teeth (21) are internally provided with the blind holes (23);

and the external teeth (22) are sleeved on the top of the internal teeth (21), and are detachably connected with the top of the internal teeth (21).

5. The granulating roll as claimed in claim 4, characterized in that the external teeth (22) comprise:

the gear sleeve (221), the gear sleeve (221) has a cavity inside to be sleeved on the top of the internal teeth (21);

a protrusion (222), the protrusion (222) extending from the top of the gear sleeve (221) to both sides in a direction perpendicular to the gear sleeve (221).

6. The granulating roll as claimed in claim 5, wherein the direction of extension of the projections (222) is the rolling direction of the roll (1).

7. The granulating roller as claimed in claim 5, wherein the blind holes (23) at least partially overlap the toothed sleeve (221) in the radial direction.

8. The granulation roller as claimed in claim 4, characterized in that said external teeth (22) are fixed to the top of said internal teeth (21) by means of pins (24), said pins (24) extending along said radial direction.

9. The granulating roll as set forth in claim 1, further comprising:

the supporting ribs (4) are connected with the bottoms of the roller teeth (2) so as to support the roller teeth (2) on the surface of the roller body of the roller (1).

10. The granulation roller as claimed in claim 1, wherein said cylindrical surface comprises a plurality of rows of teeth (2), each row of teeth (2) being spaced apart along said axial direction, the teeth (2) of two adjacent rows being offset from each other.