CN203281336U

CN203281336U - Roll crusher

Info

Publication number: CN203281336U
Application number: CN2013201992838U
Authority: CN
Inventors: 拉斯·格伦瓦尔
Original assignee: Metso Minerals Sweden AB
Current assignee: Metso Sweden AB
Priority date: 2012-04-20
Filing date: 2013-04-19
Publication date: 2013-11-13
Anticipated expiration: 2023-04-19
Also published as: DK2756886T3; EP2756886A2; EP2756886A3; EP2756886B1; EP3248685A2; EP2653229A1

Abstract

The utility model relates to a roll crusher (1). The roll crusher is provided with two substantially-parallel rollers which are arranged to rotate in the opposite directions and separated from each other by a gap; each roller (2) is provided with a first end part(3) and a second end part (4); the roll crusher (1) comprises flanged lips (5) attached to at least one of the end parts (3 or 4) of the at least one of the rollers (2); the flanged lips (5) extend in the radial direction of the rollers (2), and exceed the height (H) of the outer surfaces (6) of the rollers (2), and the height is sufficient to substantially extend across the gap of a nip angle (Alpha) of the roll crusher (1). According to the utility model, the flanged lips eliminate weak points at the edges of the rollers, and help to keep materials on the outer surfaces of the rollers.

Description

Kibbler roll

Technical field

The utility model relates to a kind of kibbler roll, and it has two rollers, and described roller is configured to toward each other along opposite direction rotation and by gap, is separated, and each roller has first end and the second end.

Background technology

When broken or while grinding rock, ore, cement clinker and other hard material, can use the kibbler roll with the parallel roller of two cardinal principles, two rollers are toward each other along opposite direction rotation, and by gap, are separated.Material to be broken supplies in gap by gravity or the supply (choke-fed) that blocks.A kind of kibbler roll is called as high pressure mixing roll or high pressure kibbler roll.What this kibbler roll used is the crushing technology that is called as the intergranular fragmentation.Here, material to be broken or to be pulverized not only is broken by the crusher surface of roller, and by the particle in material to be broken, is broken, so the called after intergranular is broken.

A kind of example of high pressure mixing roll has been described in patent documentation EP-516952.The document discloses the improvement roller of the roll squeezer of nip forces very high in the extruding nip that can bear the intergranular fragmentation.Roll squeezer has separated a plurality of wearing face members of the compressive surface that embeds roller, and their material is harder than the material on the roller surface that surrounds inlet part.By changing size, quantity and the material properties of insert, the wearing and tearing of compression roller and material to be pulverized are complementary, so that minimise wear, and make along the wear profile of roller and the extrusion application of expansion and be complementary.

The FAQs related with existing high pressure mixing roll is, due to serious edge effect (that is, the crushing effect of roller edge weakens), so roller diameter is extremely important with the ratio of roller width.This be because, material can be deviate from from the edge of roller, the edge that has weakened thus roller makes the cracking pressure of material towards gap.Therefore, these roller parameters can not change to the degree of expectation.

The utility model content

The purpose of this utility model is to provide improvements over the prior art.More specifically, the purpose of this utility model is to provide a kind of kibbler roll, and the roller diameter of this kibbler roll and roller width can more freely change and can not weaken crushing effect.

To description of the present utility model, these and other objects and advantage will be apparent, and by the kibbler roll according to the following stated, these and other objects and advantage will be achieved from following.

The utility model provides a kind of kibbler roll, it has two rollers, described two rollers are configured to toward each other along opposite direction rotation and by gap, are separated, each roller all has first end and the second end, described kibbler roll comprises:, for the flange on the outer surface that material to be broken is remained on roller, be attached at least one end of a roller in described roller.

The utility model provides a kind of kibbler roll, and it has two rollers that cardinal principle is parallel, and described roller is configured to toward each other along opposite direction rotation and by gap, is separated.Each roller all has first end and the second end.Kibbler roll comprises the flange of at least one end that is attached to one of them roller.This flange is along the radially extension of roller, and has the height of the outer surface that exceeds roller, and this highly is enough to extend across the gap generally along the nip angle of kibbler roll.Its advantage is, flange has been eliminated the weak spot of the edge of roller.Flange helps material is remained on the roller outer surface.That is to say,, due to the existence of flange, prevented that material from dropping on the edge of roller.This and then help increase in the edge of roller the pressure that makes the gap of material between roller.The weak spot of the edge by eliminating roller, roller diameter and roller width can more freely change and can not weaken crushing effect.In addition, flange will be conducive to provide on roller the spontaneous protective layer that consists of material to be broken.

When gap was set to maximum operating clearance, this height can be enough to extend across the gap generally along the nip angle of kibbler roll.Therefore at the critical moment of fragmentation procedure, above-mentioned advantage is achieved.

Flange can comprise the supply structure of the inboard that is positioned at flange, and described structure is extended towards the other end of roller from the inboard of flange.Its advantage is, this structure will help the edge of roller, even farther place increases the pressure that makes the gap of material between roller.This structure can engage with material that will be mobile in broken zone, and this pressure can be optimised.

This structure can be arc, continuous, interruption or their combination.These are preferred embodiments of this structure.

This flange can be made by the first material, and this structure can be made by the second material, and described the second material is harder than described the first material.Like this, this structure will be served as anti-wear component and be protected flange not to be worn.This structure also will help to generate on flange and keep spontaneous protective layer.

Flange can be divided into a plurality of sections, and its advantage is, will be convenient to manufacturing and the installation of flange.Flange can be attached to roller by bonding, bolt connection, screw connection, welding, soldering or any other suitable tightening technology.

Kibbler roll can comprise the flange of each end that is attached to respectively one of described roller.Therefore above-mentioned advantage all is achieved on the two ends of roller.

Can obtain following useful technique effect according to kibbler roll of the present utility model: flange has been eliminated the weak spot of the edge of roller, and flange helps material is remained on the roller outer surface.

Usually, unless this paper clearly definition in addition, all terms of using in claim all should be explained according to its common implication in the art.Unless explicitly point out in addition, all mention " one/one/be somebody's turn to do (element, device, parts, instrument etc.) all should be construed as denoting at least a situation of described element of generation, device, parts, instrument etc. with opening.And in the application's full text, the meaning that term " comprises " is " including but not limited to ".Finally, " nip angle " is defined as the angle between a horizontal plane and a straight line, this horizontal plane extends through the center of the first Gun De center and parallel second roller, this straight line is drawn a bit that pass through on parallel second roller from the first Gun De center,, at this some place, start effectively to engage between second roller and material to be broken.Two kinds of different nip angles are proposed in relating to the document of this theme.A kind of nip angle relates to single Particle Breakage, and a kind of nip angle relates to the intergranular fragmentation.The nip angle that relates to the intergranular fragmentation is significantly less than the nip angle that relates to single fragmentation.It should be noted that in this application, refer to the nip angle that relates to the intergranular fragmentation.

Description of drawings

Exemplary and nonrestrictive detailed description by the preferred embodiment of the present utility model referring to accompanying drawing, above and other objects, features and advantages of the present utility model will be better understood, in the accompanying drawings, identical Reference numeral will be for identical element, wherein:

Fig. 1 is the stereogram according to the kibbler roll of an illustrative examples of the present utility model,

Fig. 2 a is the radially stereogram of the roller of the kibbler roll of two flanges of extension that has along roller,

Fig. 2 b is the stereogram of a sections of one of flange of Fig. 2 a,

Fig. 3 a is the radially stereogram of the roller of the kibbler roll of two flanges of extension that has along roller,

Fig. 3 b is the stereogram of a sections of one of flange of Fig. 3 a,

Fig. 4 a is the radially stereogram of the roller of the kibbler roll of two flanges of extension that has along roller,

Fig. 4 b is the stereogram of a sections of one of flange of Fig. 4 a, and

Fig. 5 is the side view of the kibbler roll of Fig. 1 while only having a flange.

The specific embodiment

Fig. 1 illustrates the kibbler roll 1 according to an illustrative examples of the present utility model.Kibbler roll 1 has two rollers 2 that cardinal principle is parallel, and these two rollers are configured to toward each other along opposite direction rotation and by gap, are separated.Each roller 2 has first end 3 and the second end 4.Kibbler roll 1 comprises the first end 3 of in two rollers 2 that are attached to kibbler roll 1 and the flange 5 of the second end 4.Flange 5 is along the radially extension of roller 2, and has the height H of the outer surface 6 that exceeds roller, and this highly is enough to extend across the gap generally along the nip angle α of kibbler roll 1.When this gap was set to maximum operating clearance, height H was enough to extend through the gap generally along the nip angle α of kibbler roll 1.Flange 5 is flat, and helps material to be broken is remained on roller outer surface 6.That is to say,, due to the existence of flange 5, prevent that material from dropping on the edge of roller 2.Flange also helps the protective layer that provides spontaneous on roller, and it consists of material to be broken.Flange 5 is divided into a plurality of sections 7, so that the manufacturing of flange 5 and installation.Flange 5 for example connects by bonding, bolt or screw connects and be attached to roller 2.

In Fig. 2 a, show on each end 3,4 of roller 2 of kibbler roll 1 and all have flange 5, described flange is along the radially extension of roller 2.Flange 5 is flat, and will eliminate the weak spot of the edge of roller 2.Flange 5 helps material is remained on the outer surface 6 of roller 2, and prevents that material from dropping on the edge of roller 2.This so increase the pressure that makes the gap of material between roller 2 in the edge of roller 2.

Fig. 2 b shows a sections 7 of the flange 5 in Fig. 2 a.As mentioned above, flange 5 is divided into a plurality of sections 7, so that the manufacturing of flange 5 and installation.Yet flange 5 also can be designed to the unit of a monomer naturally.

In Fig. 3 a, show the second embodiment of the roller 2 of kibbler roll 1.Here, flange 5 comprises the supply structure 8 on the inboard that is positioned at flange 5.Structure 8 is extended towards the other end 3,4 of roller 2 from the inboard of flange 5.It is arc that structure 8 is continuously.The edge that structure 8 will increase roller 2 makes the pressure in the gap of material between roller 2.Material will engage with structure 8, then be pressed towards and pass through gap, and namely material is blocked and supplied in gap.

Fig. 3 b shows a sections 7 of the flange 5 in Fig. 3 a.Naturally, can also be designed a monomeric unit according to the flange 5 of the second embodiment.

In Fig. 4 a, show the 3rd embodiment of the roller 2 of kibbler roll 1.Here, flange 5 also comprises the supply structure 8 that is positioned on inboard.Yet, according to the structure 8 of this embodiment, be interrupted.

Fig. 4 b illustrates a sections 7 of the flange 5 in Fig. 4 a.Naturally, can also be designed a monomeric unit according to the flange 5 of the 3rd embodiment.

In Fig. 5, show the side view of kibbler roll 1, in order to help to understand nip angle α.Draw from the center of right roller 2 by any the first straight line on left roller 2,, at this some place, start effectively to engage between left roller 2 and material to be broken.Record nip angle α between the horizontal plane that extends through left roller, You Gunde center and described the first straight line.This angle is one less in two possible angles that obtain according to definition set forth above.In the embodiment shown in fig. 5, flange 5 height H that exceeds the outer surface 6 of roller 2 is enough to extend across the gap generally along the nip angle α of kibbler roll 1.

During the fragmentation procedure of kibbler roll 1, material to be broken is transported to kibbler roll 1 by feedway, and is introduced into the hopper of feedway.Then material to be broken is fed into the gap between two rollers 2 of kibbler roll 1.The flange 5 of kibbler roll 1 helps material is remained on the roller outer surface 6 of roller 2, and help on the whole width of roller 2, especially the edge of roller 2 increase make material towards roller between the pressure in gap.When material was broken by the breaker roll 2 of two parallel rotations, it left gap under the effect of gravity, in order to from this unit, transfer out.

Abovely mainly with reference to some embodiment, the utility model has been described.Yet as readily understood by the skilled person, in the scope of the present utility model that the claims of enclosing limit, other embodiment beyond above disclosed embodiment is possible equally.

For example, described structure can be any suitable size and shape, and is for example straight, oblique, bending, annular, binary or monomer.

The size and shape of flange also can change, thereby comprises various structures.If flange comprises various structures, these structures can be different size and shapes.

Claims

1. a kibbler roll (1), have two rollers (2), described two rollers are configured to toward each other along opposite direction rotation and by gap, are separated, and each roller (2) all has first end (3) and the second end (4), it is characterized in that, described kibbler roll (1) comprising:

, for the flange (5) on the outer surface that material to be broken is remained on described roller, be attached at least one end of a roller in described roller (2).

2. kibbler roll according to claim 1 (1), is characterized in that, described flange (5) is along the radially extension of described roller (2).

3. kibbler roll according to claim 1 (1), it is characterized in that, described flange (5) has the height (H) of the outer surface (6) that exceeds described roller (2), and described height is enough to extend across the described gap generally along the nip angle (α) of described kibbler roll (1).

4. kibbler roll according to claim 3 (1), is characterized in that, when described gap was set to maximum operating clearance, described height was enough to extend across the described gap generally along the nip angle (α) of described kibbler roll (1).

5. according to the described kibbler roll of any one (1) in aforementioned claim, it is characterized in that, described flange (5) comprises the supply structure (8) on the inboard that is positioned at described flange (5), and described supply structure (8) is extended towards the other end of described roller (2) from the inboard of described flange (5).

6. kibbler roll according to claim 5 (1), is characterized in that, described supply structure (8) is arc.

7. kibbler roll according to claim 5 (1), is characterized in that, described supply structure (8) is continuous.

8. kibbler roll according to claim 5 (1), is characterized in that, described supply structure (8) is interrupted.

9. kibbler roll according to claim 5 (1), is characterized in that, described flange is made by the first material, and described supply structure is made by the second material, and described the second material is harder than described the first material.

10., according to the described kibbler roll of any one (1) in aforementioned claim 1-4, it is characterized in that, described flange (5) is divided into a plurality of sections (7).

11., according to the described kibbler roll of any one (1) in aforementioned claim 1-4, it is characterized in that, described flange (5) is attached to described roller (2) by bonding, bolt connection, screw connection, welding, soldering or any other suitable tightening technology.

12., according to the described kibbler roll of any one (1) in aforementioned claim 1-4, it is characterized in that, described flange (5) is attached to respectively each end (3,4) of described roller (2).

13., according to the described kibbler roll of any one (1) in aforementioned claim 1-4, it is characterized in that, described two rollers (2) are substantially parallel to each other.