CN1576256A

CN1576256A - Grinding apparatus comprising grinding rolls for a clinker cooling device

Info

Publication number: CN1576256A
Application number: CN 200410063591
Authority: CN
Inventors: W·吕劳; H·迈尔; U·波克
Original assignee: Claudius Peters Technologies GmbH
Current assignee: Claudius Peters Technologies GmbH
Priority date: 2003-07-11
Filing date: 2004-07-12
Publication date: 2005-02-09
Also published as: EP1495812A1

Abstract

The invention relates to a device used for crushing the materials from a baking furnace, comprising a plurality of parallel-arranged crushing rollers (7). The crushing rollers share a shaft (8), both ends of which are provided with a bracing part (83), which can make linear movement around a rotating shaft of the crusher, and a connecting piece used for rotary drive. The crushing rollers are also provided with a slideable crushing ring (9), and the internal chamber of the crushing ring is arranged in the shaft (8) anti-rotarily and the external surface is provided with a crushing piece (90); the shaft (8) is a bundling body composed of a plurality of independent pieces (81) and is provided with a non-circular outer contour, and a plurality of holding holes (92) are arranged inside the crushing ring (9), so that the independent pieces (81) are connected with each other anti-rotarily. With the form outer contour of the shaft (8) and the internal shape of the crushing ring (9), a large area can be used for transmitting driving force; the device has the advantages of reduced load of the crushing ring and prolonged service life.

Description

The shredder assembly that has breaker roll in the sintered clinker water cooler

Technical field

The present invention relates to be used for the device of broken material and the especially cement clinker that comes out in the stoving oven, it has a plurality of breaker rolls that are arranged in parallel, these breaker rolls have an axle and a plurality of slidably broken ring, described axle has at its two ends that be used for can be around support and web member that is used to rotate driving of rotation motion ground supporting, and the inside of broken ring is configured for and anti-ly holds this axle and outside surface has crushing members with changeing.

Background technology

Fact proved, cool off for making the material and the especially cement clinker that come out in the stoving oven, grog have as far as possible little and as far as possible the homogeneous granules size be favourable.Therefore, people's crusher dative of proposing to be used for broken grog is already rushed water cooler and is coupled together.Such device is known by everybody because of obvious previous use.

At this moment, the crusher that is used to broken grog bears very high loading.Being the mechanical load that produces in shattering process on the one hand, is thermal load on the other hand, because crusher runs into the temperature up to 800 ℃ when work, its consequence is the crusher serious wear.Consequent maintenance cost is very high.Disclose various solution routes and reduced maintenance cost.

On the one hand, people attempt movably the roller of outstanding moving supporting crusher, thus make they can be easily release in the broken space (WO-A-94/21381).So, can roll change under much simple condition.But this makes the structure more complicated and also is not suitable for remodeling and expanding.

On the other hand, from significantly having known previous the utilization, the roller of crusher is made of a plurality of parts, and it has the fragmentation ring of a driven axle as core and one or more slippages on axle, and these broken rings are connected with an anti-rotation and crushing members arranged on its outer surface.When working, just broken ring is worn, and this fragmentation ring is by leaving behind from axle and loading onto new fragmentation and encircle and can change easily.Be provided with on axle that a rib key is used to make broken ring and axle is anti-links to each other rotationally, this enters in the vacancy on fragmentation ring inner face also thereby plays the effect of follower.But this structure formation requires higher fragmentation ring structure manufacturing cost.High mechanical load and envrionment conditions have all proposed strict demand to broken ring material, exactly, are aspect its quality and thickness.This causes higher cost.

Summary of the invention

Task of the present invention is to propose a kind of improved device according to last described background technology, and it can make cost lower when keeping the good advantage of maintainability.

The present invention finishes this task by a kind of device with the described feature of claim 1.Favourable improvement project is seen dependent claims.

According to the present invention, in the device that is used for broken material and the especially cement clinker that comes out in the stoving oven, this device has a plurality of breaker rolls that are arranged in parallel, these breaker rolls have an axle and a plurality of slidably broken ring, this has on two ends and is used for and can and a web member that is used to rotate driving be arranged around the support of rotation motion ground supporting, and the inside of described broken ring is designed to anti-ly load onto this axle rotationally and its outside surface has crushing members.The present invention regulation, this is configured to the boundling body that is made of a plurality of long discrete items, and it has non-circular outline, and described fragmentation encircles within it portion to have and a plurality ofly is distributed in the cavity on the circumference so that be connected rotationally with the boundling body is anti-.

The present invention has realized that this flexural stiffness can be enhanced by according to the present invention this reel structure being become the form of the boundling body that is made of a plurality of discrete items.Also recognize, utilize the axle of so more bending resistance can reduce owing to the power transmission affacts the load that fragmentation encircles.Being also advantageous in that of device of the present invention: the major part of the inner face of broken ring all is used for transmitting revolving force.This can make more even between axle and broken ring, transmit power better.The material load that causes by the power transmission and the load of especially broken ring material thereby further reduced.Utilize this principle, the present invention can more make broken ring in the lowland by cost.This just allows to use more favourable material to make axle and at first is broken ring, and this material must satisfy not too strict requirement.In addition, material thickness can reduce.But the reducing of material thickness means that not only material saves, and also can increase broken ring internal diameter when same physical dimension.Internal diameter increases to have increased again between axle and broken ring and transmits the area of power, thereby makes than load and further reduce again.

The discrete item that is used for the boundling body can be any elongated elements.But it is identical shaped that these discrete items preferably have.This just can especially reasonably make processing., can advantageously use pipe here, as can be used as the pipe that general goods obtains.This just allows very lowland tectonic axis of cost.

In principle, these discrete items can have transverse section arbitrarily, but preferably they have circular transverse section.Discrete item itself can make solid or hollow preferably.

This axle suitably is designed to hollow structure.Here, hollow structure is meant that discrete item arranges and seal out an internal cavities along the excircle of axle between them.Implement to prove that the axle of being made up of four to six discrete items is favourable.

The discrete item of boundling body can only and be preferably in its end on some point and interconnect.If but the compound connection of these discrete items just can obtain the higher stable life of boundling body.This means that discrete item joins with adjacent discrete item in its most length.Like this, this axle just obtains special inflexible structure.

The profile of accommodation hole preferably is adapted to the outer shape of discrete item.By such phase coadaptation, discrete item is placed in the accommodation hole of broken ring substantially with the face way of contact.Act on the ratio load on the broken ring thereby reduce.Therefore, broken ring material only bears less load.Here, adaptation is not meant that the profile of discrete item must be consistent with the shape of accommodation hole.As long as mainly in the zone of transmission of drive force between axle and the broken ring, exist the shape similarity just much of that.A gap enough big concerning all operational conditionss also should be arranged.

Accommodation hole suitably is interconnected.Like this, at cavity that common is bigger of the inner formation of fragmentation ring, this causes further material to be saved and fragmentation encircles lighter.

The external diameter of broken ring and the ratio of internal diameter are preferably 0.7-0.9.The fact shows that broken ring has good especially relation between low cost that causes because of the material saving and abrasive wear resistance.

The discrete item of boundling body itself can be made of any material, and this material has enough temperature tolerances and is suitable for transmitting needed power, and it preferably is made of common structure iron St52-3.Broken ring is best to be made by such material, and its can bear big power on the one hand, and is wear-resisting on the other hand, GS17CrMo55 for example, and perhaps concerning high-temperature load, it is GX25CrNiSi.For improving wear resistance, can be defined in and load onto an independent sheath on the broken ring outer surface.

For simplifying assembling, suitably on the end of axle, be provided with dowel disc so that hold discrete item.These discrete items only need be inserted in the dowel disc when assembling, so that be assembled into complete axle.This can make the special advantages of simple of structure of axle.

Description of drawings

Below, describe the present invention in detail in conjunction with the accompanying drawing of an advantageous embodiment of expression.Accompanying drawing is depicted as:

Fig. 1: the sketch of first embodiment of apparatus of the present invention;

Fig. 2: the skeleton view of an axle of embodiment of apparatus of the present invention;

Fig. 3: the cross-sectional view of axle shown in Figure 2;

Fig. 4: the skeleton view of broken ring;

Fig. 5: the sectional view of the breaker roll that forms according to the present invention.

Embodiment

Fig. 1 has represented a sintered clinker water cooler of totally representing with mark 1, and it has a cooling grillage 2, and on the cooling grillage, material to be cooled moves on the direction of arrow with the form of bed.Before clinker cooler 1, be connected to a rotary kiln 4, throw in the charging well area shown in the figure left side in the charging well of its discharge end feeding clinker cooler and with grog.The overall crusher of representing with mark 6 is located in the material casting district of cooling grillage 2 of 5 li in the well of feeding.

Crusher comprises a framework 60, on this framework, parallelly is provided with a plurality of rollers 7 abreast.These rollers are placed on the framework 60 rotationally by the rolling bearing (not shown).One rotating driving device 61 is arranged in outside the sintered clinker water cooler 1 and by a reduction box 62 and is connected with breaker roll 7, makes these breaker rolls 7 be driven opposite rotation thus.Here, what is called is meant that on the contrary adjacent breaker roll 7 rotates in the opposite direction.

In Fig. 2-Fig. 5, both also showed in detail breaker roll 7 of the present invention with assembled state with independent state.Breaker roll 7 is made up of the fragmentation ring 9 (Fig. 2 only illustrates one of them, so that see clearlyer) of an axle 8 and a plurality of slips.

Axle 8 is configured to tube bank 80 forms of the discrete item of a plurality of one-tenth pipe 81 shapes.Used four pipes 81 in an illustrated embodiment, but the pipe that also can use different quantities is as 3,5 or 6 pipes.Pipe 81 arranges that so promptly its central axis separately is positioned on the foursquare summit, and the foursquare length of side is confirmed as making it to equal tube outer diameter.Be provided with weld seam on the position that adjacent pipe 81 is in contact with one another, weld seam connects into a rigidity tube bank that energy is stressed with pipe 81.Be provided with end cap 82 on the end of pipe 81, end cap has the bearing that is used for pipe 81 ends in a side, has an axle journal 83 to be used for rotationally axle being bearing in the framework at its opposite side.

Fig. 5 represents broken ring 9 of the present invention, and its outside surface has a plurality of crushing members 90.As shown in Figure 4, crushing members 90 can produce by the one-tenth groove of outside surface and the corresponding moulding of raised tooth form, and perhaps they can be made by additional coated materials, for example makes by applying welding bead.Crushing members can be by constituting with remaining broken ring identical materials, and perhaps it can be made by attrition resistant especially material.Be provided with a plurality of on the inner face of fragmentation ring 90 and be four accommodation holes 92 in this illustrated embodiment.Accommodation hole 92 has circular basic shape and is arranged to make its central point to be positioned on the foursquare summit, the foursquare shape that foursquare geometrical shape is made of the central axis corresponding to the single pipe 81 of axle 8.The diameter of accommodation hole 92 should make these single pipes 82 insert with a gap in this hole.This geometrical shape causes accommodation hole 92 part superposition mutually, thereby forms the hole that a connection is got up.Therefore, the remaining wall thickness of broken ring 9 is not uniformly, but is different according to the position, angle.Being preferably in because of being provided with accommodation hole 92 has in the zone of thickest, and crushing members 90 is set on the outside surface of fragmentation ring 9.Because the power that is caused by crushing members 90 in these zones load can be born by ring best.

For breaker roll of the present invention is installed, at first single pipe 81 is connected into a tube bank 80 and make axle 8 thus.Then, on this, load onto the fragmentation ring 9 of desired quantity.Expression has the sectional view of the axle 8 of the broken ring 9 that slides in Fig. 5.Can see that the physical dimension of accommodation hole 92 is harmonious with the diameter of the single pipe 81 of axle 8, thereby the axle 8 that comprises single pipe 81 is loaded into a gap.In Fig. 5, for the sake of clarity exaggerate showing the gap.In fact it is much smaller, and while when the external diameter of axle 8 was 350mm, the gap had only several millimeters.As shown in Figure 5, the outside surface of the single pipe 81 of axle mates mutually with the interior shape with fragmentation ring 9 of accommodation hole 92, and this just can make axle 8 with the broken ring 9 of face contact form supporting.Like this, owing to making broken ring 9 loads that bear, importing into of the motivating force that works on sense of rotation reduced as far as possible.Therefore, broken ring 9 bears than the littler load of the broken ring of tradition, and these broken rings are driven by a rounded in other cases axle by the rib key.This has not only prolonged the work-ing life of broken ring, but also can produce the fragmentation ring with materials with smaller thickness.The latter can increase the internal diameter of broken ring 9 again, thereby can use thicker axle 8.Therefore increase the area that is used for the power of between axle 8 and broken ring 9, transmitting again, therefore further reduce load.

For the single pipe 81 of axle 8, can use commercial general pipe.Fact proved that external diameter is about 194mm and is suitable for by the pipe of turning to 184mm, can make the axle that reaches 6m by these pipes.It is suitable for the fragmentation ring that external diameter reaches 500mm most.

As the material of fragmentation ring 9, suitably use chromemolybdenum steel, especially GS17CrMo55.In order to improve abrasive wear resistance, broken ring especially can have sheath in the zone of crushing members 90, and this sheath is made by Fox Ledurit65 (E10-UM-65GRZ) in proving effective embodiment.

Claims

1. the device that is used for broken material and the especially cement clinker that comes out from stoving oven (4) lining, this device has a plurality of breaker rolls that are arranged in parallel, these breaker rolls have an axle (8) and a plurality of slidably broken ring (9), this has on two ends and is used for and can and a web member that is used to rotate driving be arranged around the support of rotation motion ground supporting, the inside of described broken ring is designed to anti-ly load onto this axle (8) rotationally and its outside surface has crushing members (90), it is characterized in that, this axle (8) is configured to the boundling body (80) by a plurality of long discrete items (81) formation, and it has non-circular outline, and described broken ring (9) portion within it has and a plurality ofly is distributed in the cavity (92) on the circumference so that be connected rotationally with boundling body (80) is anti-.

2. by the described shredder assembly of claim 1, it is characterized in that the shape of these discrete items (81) is identical.

3. by the described shredder assembly of claim 2, it is characterized in that these discrete items (81) are the pipes with best rounded cross section.

4. by any described shredder assembly in the claim 1 to 3, it is characterized in that this axle (8) is configured to hollow structure.

5. by any described shredder assembly in the claim 1 to 4, it is characterized in that the profile of these accommodation holes (92) is adapted to the profile of these discrete items (81).

6. by any described shredder assembly in the claim 1 to 5, it is characterized in that these accommodation holes (92) are interconnected.

7. by any described shredder assembly in the claim 1 to 6, it is characterized in that this axle (8) has a dowel disc (82) so that hold these discrete items (81) on its end.

8. by the described shredder assembly of one of aforesaid right requirement, it is characterized in that the external diameter of described broken ring (9) is 0.7-0.9 with the ratio of internal diameter.