CN103447114A - Functional part for roller type crusher and sintering machine and corresponding roller type crusher - Google Patents
Functional part for roller type crusher and sintering machine and corresponding roller type crusher Download PDFInfo
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- CN103447114A CN103447114A CN2012101809758A CN201210180975A CN103447114A CN 103447114 A CN103447114 A CN 103447114A CN 2012101809758 A CN2012101809758 A CN 2012101809758A CN 201210180975 A CN201210180975 A CN 201210180975A CN 103447114 A CN103447114 A CN 103447114A
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- wheel
- kibbler roll
- protective cap
- grid section
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Abstract
The invention relates to a roller type crusher. The roller type crusher comprises a driving device, a roller shaft and star wheel assembling assembly, a grid section trolley and protective caps, wherein the roller shaft and star wheel assembling assembly is directly or indirectly driven by the driving device to rotate and comprises a main shaft and a star wheel assembled on the main shaft; the star wheel is provided with star wheel teeth with tooth crown parts; the grid section trolley is provided with at least two grid sections and a gap is formed between two grid sections; in the rotation process of the roller shaft and star wheel assembling assembly, each two adjacent star wheel teeth occlude in the corresponding gap for at least one period of time; the protective caps are arranged at the tops of the grid sections. The tooth crown parts and/or the protective caps are formed by sintering materials including Al2O3 and/or SiC. The invention further relates to a functional part for the roller type crusher and a sintering machine. The functional part is formed by sintering the materials including Al2O3 and/or SiC. The functional part provided by the invention is wear-resisting, high-temperature-resisting, high in strength and low in cost and has a long service life, so that the corresponding roller type crusher and sintering machine have good performance.
Description
Technical field
The present invention relates to a kind of kibbler roll, particularly single roll crusher, and relate to a kind of functional part for kibbler roll and sintering machine.
Background technology
At metallurgy industry, particularly in steel and iron industry, need to carry out sintering to compound (breeze, flux, bulk cargo add water again and mix after mixing according to a certain ratio), after burning, compound becomes the sintering deposit that iron-holder is high, then supplies with blast furnace and uses.As required, sintering feed often also needed to carry out fragmentation before using, in order to can apply better.
Therefore, sintering machine and disintegrating machine, particularly kibbler roll are the main production equipments in sintering plant.Sintering machine is positioned at the upstream of disintegrating machine, and sintering machine for sintering compound into sintering feed, then is supplied to disintegrating machine by sintering feed, and sintering feed, after crusher in crushing, is transported to that other positions are stored or directly uses.
Single roll crusher is the most frequently used a kind of in kibbler roll.Single roll crusher mainly comprises: drive unit, transmission device, the load module of roll shaft star-wheel, grid section chassis, draw-gear, cooling system etc.Its course of work is as follows: drive unit arrives the load module of roll shaft star-wheel by transmission device by transmission of power, thereby rotate with the star-wheel in the load module of action roller shaft star-wheel, crushing teeth on this star-wheel is engaged between the grid section on the grid section chassis, the crushing teeth of the star-wheel rotated forms fragmentation with respect to the grid section motion, thereby the sintering feed on grid section is produced to fragmentation, and the space of the sintering feed after fragmentation between grid section falls into the gathering-device of grid section chassis below.In the whole course of work, the grid section chassis is gone back rectilinear motion simultaneously, in order to can make the crushing teeth of star-wheel all produce fragmentation to all sintering deposits on the grid section chassis.And, in process, operating temperature can reach 800 ℃ of left and right, also need the load module of cooling system roll shaft star-wheel to carry out cooling for this reason.
In kibbler roll, star-wheel 41 is main crusher members, and operating temperature is 800 ℃ of left and right, requires it wear-resisting and have enough intensity.For this reason, generally it is made to two bodies: star gear body 42 and crown 43(are referring to Fig. 1), wherein, the crown body 44 of crown 43 is steel-casting, and working position 45 adopts the alloy electrode built-up welding, working life 3-5 month, the processing technology very complex, life-span is short, and cost very high (the alloy surfacing electrode price adopted at present is up to 45000 yuan/tons), change also more difficult.
Grid section on the grid section chassis is with sintering feed, directly to contact and the vitals of load-bearing.For grid section is more effectively worked, the top of grid section is typically provided with protective cap.In fact, the protective cap on the grid section top and star-wheel crown have roughly the same condition of work.At present, the material of protective cap is generally metal cast steel, and cost is high, and the life-span is not oversize yet.
In addition, castor bar and protective cap on sintering pallet have roughly the same condition of work, and the heat insulating mattress in sintering machine and breast board very easily produce distortion, crackle under the operating temperature of 800-1000 ℃, have a strong impact on normal operation.The material that above three kinds of parts adopt is also metal cast steel, and cost is high, and the life-span is not oversize yet.
These functional parts have roughly the same condition of work, need wear-resisting, high temperature resistant and have sufficiently high intensity, but their costs are high at present, the life-span is short, processing technology is also complicated.For this reason, need a kind of functional part that can adapt to well this condition of work.
Summary of the invention
The purpose of this invention is to provide a kind of kibbler roll and a kind of functional part for kibbler roll, sintering machine that can overcome at least part of above-mentioned shortcoming.
According to an aspect of the present invention, above-mentioned purpose can be by a kind of kibbler roll realization, and described kibbler roll comprises: drive unit; By described drive unit, directly or indirectly driven and the roll shaft star-wheel load module of rotating, it comprises main shaft and is assemblied in the star-wheel on main shaft, and described star-wheel has the star-wheel tooth, and described star-wheel tooth has the crown parts; The grid section chassis, which is provided with at least two grid sections, between described grid section, has gap, in the rotation process of described roll shaft star-wheel load module, described star-wheel tooth at least at a period of time internal gearing in described gap; And be arranged on the protective cap on the top of grid section; It is characterized in that, the crown parts of described star-wheel tooth and/or described protective cap are by comprising Al
2o
3and/or the material of SiC is fired and is formed.
According to a preferred embodiment, firing in material of described crown parts also comprises sialon.
According to a preferred embodiment, described protective cap is only by Al
2o
3fire and form.
According to a preferred embodiment, described protective cap is by Al
2o
3and SiO
2fire and form.
According to a preferred embodiment, described crown parts are by Al
2o
3, SiC and sialon fire and form.
According to a preferred embodiment, amount by weight percentage, described crown parts fire the Al in material
2o
3content>=20%, the content of SiC>=50%, the Han Liang of sialon<=30%.
According to a preferred embodiment, amount by weight percentage, described protective cap fire the Al in material
2o
3content>=45%.
According to a preferred embodiment, the close degree>=2.6Kg/dm of described crown parts
3, anti-Compressive Strength>=100MPa, spend by force>=30MPa of anti-folding.
According to a preferred embodiment, the anti-Compressive Strength>=150MPa of described protective cap, spend by force>=280MPa of anti-folding.
According to a preferred embodiment, described crown parts and/or described protective cap are manufactured in the following manner: raw material is added to water and be mixed into aqueous slurry, inject in mould, fire after to be dried and form.
According to another aspect of the present invention, above-mentioned purpose can also be by a kind of realization of the functional part for kibbler roll, sintering machine, and described functional part is by comprising Al
2o
3and/or the material of SiC is fired and is formed.
According to a preferred embodiment, the crown parts of the star-wheel that described functional part is kibbler roll, be arranged on protective cap, the pallet grate bar in sintering machine or the breast board in sintering machine, heat insulating mattress on the top of grid section of grid section chassis of kibbler roll.
The novel metalloid material that the present invention adopts, the various raw materials in its formation, itself just has the characteristics of high rigidity, high-wearing feature, the employing proper ratio is fired, can be suitable for the job requirement of above functional part fully, the life-span can be improved several times, and cost has reduced on the contrary.Thereby, comprise that the kibbler roll of this functional part also has corresponding advantage.
The accompanying drawing explanation
Below, will by means of exemplary embodiment, describe the present invention referring to accompanying drawing, in order to can understand better the present invention and advantage thereof, accompanying drawing comprises:
Fig. 1 shows the partial sectional view according to the star-wheel of prior art;
Fig. 2 shows the total operation principle according to the single roll crusher of one exemplary embodiment of the present invention with top view;
Fig. 3 shows the structure of roll shaft star-wheel load module with cutaway view;
Fig. 4 shows the star-wheel according to one exemplary embodiment of the present invention with sectional view; And
Fig. 5 shows grid section and is arranged on the protective cap on grid section with cutaway view.
The specific embodiment
Below, will take single roll crusher referring to accompanying drawing and describe the structure more specifically of kibbler roll in detail as example.
Fig. 2 shows total fundamental diagram of single roll crusher 1 with top view.As mentioned above, single roll crusher 1 mainly comprises: drive unit 2, transmission device 3, roll shaft star-wheel load module 4, grid section chassis 5, draw-gear 6, cooling system 7 etc.
According to one exemplary embodiment of the present invention, drive unit 2 can be motor, and it is used to the rotation of roll shaft star wheel component 4 that power is provided.Transmission device 3 is the star-wheel 41 to roll shaft star wheel component 4 for the transmission of power by drive unit 2.Specifically, transmission device 3 mainly comprises: the reductor 31 be connected with drive unit 2, particularly motor is converted to the rotation output of relatively low speed with the high speed rotating by motor; And the gear mesh formed by pinion 32 and gear wheel 33, pinion 32 and gear wheel 33 engagements.Pinion 32 in this gear mesh is connected to the power output shaft of reductor 31, and gear wheel 33 is connected to the main shaft 46 of roll shaft star-wheel load module 4.When electric machine rotation, the rotation of motor can be delivered to the main shaft 46 of roll shaft star-wheel load module 4, thereby, drive main shaft 46 and rotate.It will be obvious to those skilled in the art that, this transmission device 3 can also comprise some other mechanism as required on drive path, such as shaft coupling, clutch etc.And, if tectonic forcing device 2 suitably also can save transmission device 3, and drive unit 2 is directly connected to the main shaft 46 of roll shaft star-wheel load module 4.
As shown in Figure 3, roll shaft star-wheel load module 4 mainly comprises main shaft 46 and is arranged on the star-wheel 41 on main shaft 46.Advantageously, along main shaft 46, a plurality of star-wheels 41 are installed, thus shape star-wheel 41 in a row, to improve crushing efficiency.
Fig. 4 shows the star-wheel 41 according to one exemplary embodiment of the present invention with sectional view.Due to grid section 51 interlocks on when work and grid section chassis 5, fragmentation is positioned at the sintering feed on the grid section 51 of grid section chassis 5 to star-wheel 41, and therefore, it had both needed wear-resisting, high temperature resistant, also needed to have sufficiently high intensity.For this reason, as mentioned above, as shown in Figure 1 and Figure 4, star-wheel 41 is generally made two bodies: star gear body 42 and crown 43.Star gear body 42 mainly provides a supporting role, and crown 43 need to have enough wearabilities and heat-resisting ability as working portion.The star-wheel according to an exemplary embodiment 41 shown in Fig. 4 comprises three star-wheel teeth 47.For this reason, star gear body 42 has central part 48 and three tooth sections 49 of radially outward stretching out from central part 48.The central part 48 of star gear body 42 is provided with pilot hole, in order to star-wheel can be sleeved on main shaft 46.The tooth section 49 of star gear body 42 preferably is connected with crown 43 by screw 40.
It will be obvious to those skilled in the art that, star-wheel 41 also can have the star-wheel tooth of other quantity in principle.
And, in the situation that have a plurality of star-wheel teeth 47, star-wheel tooth 47 is preferably arranged in a circumferential direction equably.In order to improve working (machining) efficiency, preferably make the star-wheel tooth 47 of adjacent star-wheel 41 angle that staggers arrange.More preferably, from an end of main shaft 46, the star-wheel tooth 47 of the star-wheel 41 along main shaft in odd positions is in alignment with each other, and the star-wheel tooth 47 of the star-wheel 41 in the even number position is in alignment with each other, and the angle that staggers in a circumferential direction between the star-wheel tooth 47 of these two groups of star-wheels 41, as shown in Figures 2 and 3.For a person skilled in the art, as required, star-wheel also can adopt other any suitable arrangements in principle certainly.
The grid section chassis 5 of single roll crusher 1 is arranged on the below of the main shaft 46 of roll shaft star-wheel load module 4.As shown in Figures 2 and 3, grid section chassis 5 is provided with into a plurality of grid sections 51 of grid-like layout, has gap 52 between grid section 51.The star-wheel tooth 47 of each star-wheel 41 with corresponding gap 52, align and size on suitable, and enter successively gap 52 neutralization at the rotation process culminant star gear teeth 47 and 52 leave from gap, star-wheel tooth 47 has at least a period of time to be snapped in gap 52 in rotation process.When star-wheel tooth 47 is snapped in gap 52, can produce corresponding fragmentation to the sintering feed be placed on grid section.
When work, grid section chassis 5 is by means of only illustrating with arrow in draw-gear 6(figure) draw move in the horizontal direction, thereby can make roll shaft star-wheel load module 4 move with respect to grid section chassis 5, and then can make the sintering feed on the whole roughly orthogonal grid section car 5 of 41 pairs of the star-wheels of roll shaft star-wheel load module 4 produce successively fragmentation.
As mentioned above, the operating temperature of star-wheel 41 is 800 ℃ of left and right, this be because the sintering feed on the grid section 51 of grid section chassis 5 at higher temperature.For the operating temperature that makes main shaft 46 is unlikely to Tai Gao and damages main shaft 46, also need in some cases to arrange corresponding cooling system and carry out cooling to main shaft 46.
According to an exemplary embodiment, be provided with the through hole connected vertically in main shaft 46, cooling water flows into from an end 71 of through hole, from the other end 72 of through hole, flows out, as shown in Figure 2.Thereby, the operating temperature that the cooling effect by cooling water can reduce main shaft 46 and be arranged on the star-wheel 41 on main shaft 46, the working life that extends main shaft and star-wheel.
Because grid section 51 is directly to contact and bear the vitals of weight with sintering feed on the grid section chassis 5 of single roll crusher 1, therefore, also need wear-resisting, high temperature resistant and there is enough large intensity.Usually be provided with protective cap 53 wear-resisting, high temperature resistant and that there is enough large intensity on the top of grid section 51, as shown in Figure 3 and Figure 5 for this reason.Similar with star-wheel 41, by only in the working position setting, thering is the protective cap 53 of superperformance, can save material cost, and only need when needed to change protective cap 53 and get final product, grid section 51 does not need to change.
As processing raw material for single roll crusher 1 provides, being the sintering machine (not shown) of sintering feed, it is positioned at the upstream of single roll crusher 1.The protective cap 53 of crown 43, the particularly grid section 51 of the star-wheel 41 on the bogie grates of sintering machine, breast board, heat insulating mattress etc. and single roll crusher 1 has roughly the same condition of work.Therefore, also need wear-resisting, high temperature resistant and there is enough large intensity.
Below, by bogie grates, breast board, the heat insulating mattress of describing according to star-wheel crown, grate bar protection cap and the sintering machine of kibbler roll of the present invention.
For the star-wheel crown of kibbler roll, according to a kind of preferred embodiment, adopt Sialon (sialon, Sialon) combined corundum (Al
2o
3), the manufacture of carborundum (SiC) material sintering forms.According to another preferred embodiment, the percentage by weight of these three kinds of materials is: Al
2o
3>=20%, SiC>=50%, Sialon<=30%.
Due to the shape matching complexity of star-wheel crown, according to a kind of preferred embodiment, it adopts the moulding by casting mode to manufacture.Specifically, after raw material is mixed in proportion, make the moisture preferably mud of 10% left and right, inject in mould, to be dried after, put into kiln and fire and form through the preferred temperature of 1450 ℃, fire the Shi Buhui contraction by this kind of formula, yield rate is high.Characteristic of property: hardness is high, high temperature resistant, wearability is good.Under normal temperature:
Mi Du>=2.6Kg/dm
3
Anti-Compressive Strength>=100MPa
Kang folding Qiang Du>=30MPa
It is pointed out that Sialon plays a part adhesive at this, in some cases, even can not comprise this Sialon material.And corundum (Al
2o
3) and the concrete content (percentage by weight) of carborundum (SiC) also can be determined on a case-by-case basis.And, according to another preferred embodiment, the star-wheel crown also can only comprise corundum (Al
2o
3) and carborundum (SiC) in a kind of getting final product.
In addition, it will be obvious to those skilled in the art that, the water content 10% of the mud that the above provides is only also exemplary, and the material that in fact only needs a person with the qualifications of a general is made and is convenient to moulding by casting and gets final product, and even can not adopt water as the sliming material.
And 1450 ℃ of firing temperatures that the above provides are only also exemplary.For a person skilled in the art, the material that component is different may have different sintering temperatures.In fact, if can by this material suitably sintering form, and firing temperature for a person skilled in the art fully can be depending on concrete performance requirement, material behavior.
For the protective cap of castor bar, as mentioned above, protective cap is substantially the same with the working environment of star-wheel crown, and both are used in conjunction with, and reach the purpose of broken sintering feed.The technical recipe of protective cap and preparation method and crown adopt essentially identical mode.But for a person skilled in the art, in practice, the varying in size of kibbler roll, its size difference, the difference of sintering feed, consider strength problem, the proportioning of raw material also may be slightly different.
With respect to the star-wheel crown, protective cap is relatively simple for structure, also can adopt another kind of formula, with Al
2o
3for main component, Al
2o
3content You Xuan>=45%.Also can only adopt Al
2o
3as raw materials for sintering.According to a kind of preferred embodiment, can Al
2o
3and SiO
2for main component, wherein, Al
2o
3content be preferably 45%-99%, Al
2o
3content higher, wearability is better, but due to Al
2o
3the market price comparatively expensive, therefore, cost is just higher.Comprise Al with employing
2o
3with the formula of SiC, compare, the intensity of this formula, thermal conductivity and wearability are all much better, but the shrinkage ratio of firing is larger.According to a preferred embodiment, forming method adopts injection forming.Mud moisture content is preferably 30% left and right.Mould preferably adopts plaster mold.
For example,, by containing 95% Al
2o
3formula fire the material property formed and be:
Density=3.7Kg/dm
3
Anti-Compressive Strength>=150MPa
Kang folding Qiang Du>=280MPa
Mohs' hardness: 9
Impact flexibility: 3.78KJ/m
2
The above be take star-wheel crown and grate bar protection cap and is had been described in detail as example.In fact, for star-wheel crown and protective cap, also can only adopt Al
2o
3or SiC fires and form as base stock, this is because Al
2o
3, SiC itself just has the characteristics of high rigidity, high-wearing feature.
As the pallet grate bar of the sintering machine of the upstream equipment of kibbler roll, breast board, heat insulating mattress, except the shape difference, its condition of work and castor bar protective cap are basic identical, therefore, also can adopt above-mentioned material to fire and form.
For a person skilled in the art, the basic structure of the pallet grate bar in sintering machine, breast board, heat insulating mattress and installation site are known, do not repeat them here.
The functional parts such as the pallet grate bar of the star-wheel crown of single roll crusher, castor bar protective cap and sintering machine, breast board, heat insulating mattress; condition of work is roughly the same; the material of selecting at present is metal cast steel; at high temperature the life-span is subject to larger impact; and the novel metalloid material that the present invention adopts; various raw materials in its formation; itself just has the characteristics of high rigidity, high-wearing feature; the employing proper ratio is fired; can be suitable for the job requirement of above functional part fully; life-span can be improved several times, and cost has reduced (its proportion is only the 1/3-1/2 of steel) on the contrary.
Claims (12)
1. a kibbler roll comprises:
Drive unit;
By described drive unit, directly or indirectly driven and the roll shaft star-wheel load module of rotating, it comprises main shaft and is assemblied in the star-wheel on main shaft, and described star-wheel has the star-wheel tooth, and described star-wheel tooth has the crown parts;
The grid section chassis, which is provided with at least two grid sections, between described grid section, has gap, in the rotation process of described roll shaft star-wheel load module, described star-wheel tooth at least at a period of time internal gearing in described gap; And
Be arranged on the protective cap on the top of grid section;
It is characterized in that, the crown parts of described star-wheel tooth and/or described protective cap are by comprising Al
2o
3and/or the material of SiC is fired and is formed.
2. kibbler roll as claimed in claim 1, is characterized in that, firing in material of described crown parts also comprises sialon.
3. kibbler roll as claimed in claim 1 or 2, is characterized in that, described protective cap is only by Al
2o
3fire and form.
4. kibbler roll as claimed in claim 3, is characterized in that, described protective cap is by Al
2o
3and SiO
2fire and form.
5. as arbitrary described kibbler roll in the claim of front, it is characterized in that, described crown parts are by Al
2o
3, SiC and sialon fire and form.
6. kibbler roll as claimed in claim 5, is characterized in that, amount by weight percentage, described crown parts fire the Al in material
2o
3content>=20%, the content of SiC>=50%, the Han Liang of sialon<=30%.
7. kibbler roll as claimed in claim 4, is characterized in that, amount by weight percentage, described protective cap fire the Al in material
2o
3content>=45%.
8. as arbitrary described kibbler roll in the claim of front, it is characterized in that the close degree>=2.6Kg/dm of described crown parts
3, anti-Compressive Strength>=100MPa, spend by force>=30MPa of anti-folding.
9. as arbitrary described kibbler roll in the claim of front, it is characterized in that the anti-Compressive Strength>=150MPa of described protective cap, spend by force>=280MPa of anti-folding.
10. as arbitrary described kibbler roll in the claim of front, it is characterized in that, described crown parts and/or described protective cap are manufactured in the following manner: raw material is added to water and be mixed into aqueous slurry, inject in mould, fire after to be dried and form.
11. the functional part for kibbler roll, sintering machine, described functional part is by comprising Al
2o
3and/or the material of SiC is fired and is formed.
12. functional part as claimed in claim 11; it is characterized in that, the crown parts of the star-wheel that described functional part is kibbler roll, be arranged on protective cap, the pallet grate bar in sintering machine or the breast board in sintering machine, heat insulating mattress on the top of grid section of grid section chassis of kibbler roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101809758A CN103447114A (en) | 2012-06-04 | 2012-06-04 | Functional part for roller type crusher and sintering machine and corresponding roller type crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101809758A CN103447114A (en) | 2012-06-04 | 2012-06-04 | Functional part for roller type crusher and sintering machine and corresponding roller type crusher |
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|---|---|
| CN103447114A true CN103447114A (en) | 2013-12-18 |
Family
ID=49730187
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101809758A Pending CN103447114A (en) | 2012-06-04 | 2012-06-04 | Functional part for roller type crusher and sintering machine and corresponding roller type crusher |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107552147A (en) * | 2016-07-01 | 2018-01-09 | 南京凯盛国际工程有限公司 | A kind of kibbler roll roller nested structure and kibbler roll |
| CN115193537A (en) * | 2022-09-14 | 2022-10-18 | 唐山天和环保科技股份有限公司 | Split type broken ring gear of breaker |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107552147A (en) * | 2016-07-01 | 2018-01-09 | 南京凯盛国际工程有限公司 | A kind of kibbler roll roller nested structure and kibbler roll |
| CN115193537A (en) * | 2022-09-14 | 2022-10-18 | 唐山天和环保科技股份有限公司 | Split type broken ring gear of breaker |
| CN115193537B (en) * | 2022-09-14 | 2023-01-03 | 唐山天和环保科技股份有限公司 | Split type broken ring gear of breaker |
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Application publication date: 20131218 |