CN110006252A - A kind of radial uniform thickness uniform distribution device of ring type roasting - Google Patents
A kind of radial uniform thickness uniform distribution device of ring type roasting Download PDFInfo
- Publication number
- CN110006252A CN110006252A CN201910289682.5A CN201910289682A CN110006252A CN 110006252 A CN110006252 A CN 110006252A CN 201910289682 A CN201910289682 A CN 201910289682A CN 110006252 A CN110006252 A CN 110006252A
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- China
- Prior art keywords
- ring
- distributor
- roasting
- screening
- machine
- Prior art date
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- 238000009827 uniform distribution Methods 0.000 title claims abstract description 21
- 238000012216 screening Methods 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims description 28
- 238000009826 distribution Methods 0.000 claims description 19
- 239000008188 pellet Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 13
- 238000007873 sieving Methods 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 3
- 238000005453 pelletization Methods 0.000 abstract description 10
- 239000004744 fabric Substances 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/22—Sintering; Agglomerating in other sintering apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B13/00—Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge
- F27B13/06—Details, accessories, or equipment peculiar to furnaces of this type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0001—Positioning the charge
- F27D2003/0006—Particulate materials
- F27D2003/0007—Circular distribution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2002/00—Disposition of the charge
- F27M2002/11—Continuous charging
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Glanulating (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a kind of ring types to roast radial uniform thickness uniform distribution device, comprising: screening machine sieves green-ball；Green-ball after screening is delivered on circular grate pelletizing machine trolley by the first distributing device, and rack is slowed down cloth when running from the inner ring of circular grate pelletizing machine trolley to outer ring direction, and rack instantaneous velocity isThe internal diameter of circular grate pelletizing machine trolley is R0, outer diameter Rn, circular grate pelletizing machine trolley is radially divided into n equidistant annulus, respective radius R0、R1、R2……、Rk、……、Rn, the first distributing device is V in the instantaneous velocity of corresponding annulus0、V1、V2……、Vk、……、Vn, belt speed v0.Circular grate pelletizing machine trolley is that internal-and external diameter differs biggish anchor ring, the linear velocity of outer ring is much larger compared with inner ring in rotation, to guarantee the radially uniform cloth along circular grate pelletizing machine trolley, first distributing device retarded motion when cloth, the green-ball quantity for being arranged in circular grate pelletizing machine trolley inner ring is reduced, realizes uniform distribution.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to a ring type roasting radial uniform-thickness uniform-distribution device.
Background
The pellet is one of the important iron ore agglomeration methods, and is prepared by adding a small amount of additive into finely ground iron concentrate powder or other iron-containing powder, mixing, rolling into pellet by a pelletizer under the condition of adding water for wetting, and then drying, roasting and solidifying into pellet.
The ring type roasting machine process is developed on the basis of the belt type roasting machine process, is a fourth generation pellet process, and has the advantages of compact process layout, short flow, high equipment utilization rate, low energy consumption and the like. However, the circular roasting machine process has special requirements for material distribution, and pellets must be continuously and uniformly placed on a circular roasting machine trolley, i.e. green pellets arranged on the trolley are uniform in thickness along the radial direction. However, at present, the general feeding equipment cannot achieve the effect of radial uniform-thickness distribution, and the reason is that the circular roasting machine is a circular ring surface with a large difference between the inner diameter and the outer diameter, the linear velocity of the outer ring is much greater than that of the inner ring in the rotating process, the radial feeding speed of the general feeding equipment is not different, so that pellets on the side of the inner ring on the trolley are often far more than those on the side of the outer ring, the roasted pellets have inconsistent quality, the productivity of the circular roasting machine is affected, the normal operation of the roasting process can be affected more seriously, and the product cannot achieve the required quality.
Therefore, how to provide a ring-type radial uniform-thickness uniform distribution device for roasting to realize radial uniform-thickness uniform distribution is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a ring-type radial uniform-thickness uniform-distribution device for baking to achieve radial uniform-thickness uniform distribution.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a radial uniform thickness distributing device of ring calcination which includes:
the screening machine is used for screening the diameters of the green balls processed by the balling disc;
the first distributing device conveys the screened green pellets to the annular roasting machine trolley, the rack of the first distributing device decelerates and distributes the green pellets when the rack runs from the inner ring to the outer ring of the annular roasting machine trolley, and the instantaneous speed of the rack of the first distributing device in the deceleration and distribution process isWherein,
the inner diameter of the ring type roasting machine trolley is R0The outer diameter of the ring type roasting machine trolley is RnDividing the ring type roasting machine trolley into n equidistant rings along the radial direction, wherein the corresponding radius is R0、R1、R2……、Rk、……、RnThe instantaneous speed of the frame of the first distributor when corresponding to the ring is V0、V1、V2……、Vk、……、VnThe speed of the belt of the first distributor is v0。
Preferably, in the above annular roasting radial uniform-thickness material distribution device, the pelletizing disc is connected to the sieving machine through a second material distributor.
Preferably, in the above ring-type roasting radial uniform-thickness material distribution device, the second material distributor is a pendulum type material distributor or a shuttle type material distributor.
Preferably, in the above annular roasting radial uniform-thickness material distribution device, the screening machine includes a first screening machine and a second screening machine, the first screening machine is used for screening green balls with a diameter larger than a first preset value, the second screening machine is used for screening green balls with a diameter smaller than a second preset value, and the first preset value is larger than the second preset value.
Preferably, in the above ring-type roasting radial uniform-thickness material distribution device, the first sieving machine and the second sieving machine are connected by a conveying belt.
Preferably, in the above apparatus for distributing uniform material in radial and uniform thickness in ring roasting, the first distributor does not distribute material when it runs from the outer ring of the ring roasting machine trolley to the inner ring, and the speed V of the first distributor frame is equal to the speed V of the conveyor belt thereof0。
Preferably, in the above apparatus for distributing uniform material in radial and uniform thickness in ring roasting, the first distributor is a hydraulically driven shuttle distributor, the speed of the frame of the first distributor is controlled by a hydraulic system, and the speed of the belt of the first distributor is controlled by a motor.
Preferably, in the above annular roasting radial uniform-thickness material distribution device, the sieving machine is arranged perpendicular to the first material distributor.
According to the technical scheme, the annular roasting radial uniform-thickness material distribution device disclosed by the invention has the advantages that the annular roasting trolley is a circular ring surface with a larger difference between the inner diameter and the outer diameter, the linear speed of the outer ring is much larger than that of the inner ring in the rotating process, and in order to ensure uniform material distribution along the radial direction of the annular roasting trolley, the rack of the first material distributor needs to perform deceleration motion during material distribution, so that the number of green balls arranged on the inner ring of the annular roasting trolley is reduced, and uniform material distribution is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a ring-type calcination radial uniform-thickness distribution device disclosed in the embodiment of the present invention.
Detailed Description
In view of the above, the core of the present invention is to provide a ring-type radial uniform-thickness uniform-distribution device for uniform-thickness radial uniform distribution.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in figure 1, the invention discloses a ring-type roasting radial uniform-thickness material distribution device, which comprises: the device comprises a screening machine and a first distributing device 5, wherein the screening machine is used for screening the diameter of green balls processed by a pelletizing disc, the first distributing device 5 is connected with the screening machine and used for conveying the screened green balls to a circular roasting machine trolley 6, the first distributing device 5 is used for distributing materials in a speed reducing mode when the frame returns, and the instantaneous speed of the first distributing device 5 in the returning process isWherein, the return direction of the first distributing device 5 is from the inner ring of the ring roasting machine trolley 6 to the outer ring, and the advancing direction of the first distributing device 5 is from the outer ring of the ring roasting machine trolley 6 to the inner ring.
The inner diameter (diameter of the inner ring) of the ring type roasting machine carriage 6 is R0The outer diameter (diameter of the outer ring) of the ring type roasting machine carriage 6 is RnThe ring-type roasting machine trolley 6 is divided into n equidistant circular rings along the radial direction, and the corresponding radius is R0、R1、R2……、Rk、……、RnThe instantaneous speed of the frame of the first distributor 5 in correspondence of the ring is V0、V1、V2……、Vk、……、VnWhile the speed of the belt of the first distributor 5 is v0。
Because the ring type roasting machine trolley 6 is a circular ring surface with a large difference between the inner diameter and the outer diameter, the linear velocity of the outer ring is much larger than that of the inner ring in the rotating process, and in order to ensure the radial uniform distribution along the ring type roasting machine trolley 6, the rack of the first distributor 5 needs to perform deceleration motion during the distribution, so that the quantity of green balls arranged on the inner ring of the ring type roasting machine trolley 6 is reduced, and the uniform distribution is realized. In particular, the speed of operation of the frame of the first distributor 5 needs to be gradually varied and is related to the radial diameter of the trolley 6 of the ring roasting machine, and the instantaneous speed of operation of the frame of the first distributor 5 is calculated to obtain uniform distribution.
The outer ring of the ring roasting machine trolley does not distribute material when moving towards the inner ring, i.e. the speed V of the first distributor frame is equal to the speed V of the conveying belt0，。
In a specific embodiment, the balling disk is connected to the sieving machine through a second material distributor 1, wherein the second material distributor 1 is a pendulum material distributor or a shuttle material distributor. The green pellets from the pelletizing disc are distributed by a pendulum distributing machine or a shuttle distributing device, so that the green pellets are uniformly conveyed to a screening machine.
The screening machine in this application includes first screening machine 2 and second screening machine 4, and wherein, first screening machine 2 is used for screening out the green ball that the diameter is greater than first default, and second screening machine 4 is used for screening out the green ball that the diameter is less than the second default, and first default is greater than the second default, obtains the green ball that the diameter meets the requirements. Can set up according to actual requirement to first default and second default, and all in protective range, in addition, to the broken cloth system that returns again of green ball that screens out to guarantee the recycle of material, reduce extravagantly. The first screening machine 2 and the second screening machine 4 are roller screening machines.
In a preferred embodiment, the first screening machine 2 and the second screening machine 4 are connected by a conveyor belt 3. Specifically, the green pellet that goes out through the balling disk is delivered to first screening machine 2 through pendulum-type distributing machine with the green pellet, and first screening machine 2 carries out the breakage after will crossing big particle diameter green pellet screening and returns the distributing system again, and the small pellet is then carried to second screening machine 4 through conveyer belt 3, and second screening machine 4 returns the balling system again after will crossing the screening of small particle diameter green pellet and makes the ball, what obtain behind first screening machine 2 and the second screening machine 4 is the green pellet of qualified quality granularity.
The first distributor 5 in this application is a hydraulically driven shuttle distributor. Only one specific form of distributor is disclosed herein, and in practice, it can be arranged according to different needs, all within the scope of protection.
The screening machine is arranged perpendicular to the first distributor 5. In order to reduce the length of the whole device and reduce the occupied space. In practice, corresponding arrangement modes can be set according to different requirements and are all in a protection range.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a radial uniform thickness distributing device of ring type calcination which characterized in that includes:
the screening machine is used for screening the diameters of the green balls processed by the balling disc;
the device comprises a first distributing device (5), the screened green pellets are conveyed to a loop type roasting machine trolley (6) by the first distributing device (5), the rack of the first distributing device (5) is subjected to deceleration distribution when the rack runs towards the outer loop direction from the inner loop of the loop type roasting machine trolley (6), and the instantaneous speed of the rack of the first distributing device (5) in the process of deceleration distribution isWherein,
the inner diameter of the ring type roasting machine trolley (6) is R0The outer diameter of the ring type roasting machine trolley (6) is RnDividing the ring type roasting machine trolley (6) into n equidistant circular rings along the radial direction, wherein the corresponding radius is R0、R1、R2……、Rk、……、RnThe instantaneous speed of the frame of the first distributor (5) in correspondence of the ring is V0、V1、V2……、Vk、……、VnThe speed of the belt of the first distributor (5) is v0。
2. The annular roasting radial uniform distribution device according to claim 1, wherein the balling disk is connected with the sieving machine through a second distributor (1).
3. The annular roasting radial uniform distribution device according to claim 2, characterized in that the second distributor (1) is a pendulum distributor or a shuttle distributor.
4. The annular roasting radial uniform-thickness uniform distribution device according to claim 1, wherein the screening machine comprises a first screening machine (2) and a second screening machine (4), the first screening machine (2) is used for screening green balls with the diameter larger than a first preset value, the second screening machine (4) is used for screening green balls with the diameter smaller than a second preset value, and the first preset value is larger than the second preset value.
5. Annular roasting radial uniform distribution device according to claim 4, characterized in that said first sieve (2) and said second sieve (4) are connected by a conveyor belt (3).
6. The ring roasting radial uniform distribution apparatus as claimed in any one of claims 1 to 5, wherein the first distribution device (5) does not distribute material when moving from the outer ring of the ring roasting pallet (6) to the inner ring, and the speed V of the frame of the first distribution devicekEqual to the speed v of its conveyor belt0。
7. An annular roasting radial uniform distribution device according to any one of claims 1-5, characterized in that the first distributor (5) is a hydraulically driven shuttle distributor, and the speed of the frame of the first distributor (5) is controlled by a hydraulic system, and the speed of the belt of the first distributor (5) is controlled by an electric motor.
8. The annular roasting radial uniform distribution device according to claim 7, characterized in that the sieving machine is arranged perpendicular to the first distributor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289682.5A CN110006252B (en) | 2019-04-11 | 2019-04-11 | Annular roasting radial uniform-thickness uniform distribution device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289682.5A CN110006252B (en) | 2019-04-11 | 2019-04-11 | Annular roasting radial uniform-thickness uniform distribution device |
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| Publication Number | Publication Date |
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| CN110006252A true CN110006252A (en) | 2019-07-12 |
| CN110006252B CN110006252B (en) | 2020-12-18 |
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| CN201724546U (en) * | 2010-03-19 | 2011-01-26 | 钢铁研究总院 | Rotary type material distribution device used for rotary hearth furnace |
| CN104807328A (en) * | 2015-05-19 | 2015-07-29 | 济南中燃科技发展有限公司 | Method and equipment for bedding material layered material arrangement of sintering machine by using vibrating screen |
| CN205957726U (en) * | 2016-08-30 | 2017-02-15 | 山东钢铁股份有限公司 | A distributing device that is used for metallurgical pelletizing ring cold quick -witted |
| CN108398025A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | Hierarchical and layered material distribution method for sintering machine |
-
2019
- 2019-04-11 CN CN201910289682.5A patent/CN110006252B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007195547A (en) * | 2005-12-27 | 2007-08-09 | Yamazaki Baking Co Ltd | Baking method for baked confectionery |
| CN201724546U (en) * | 2010-03-19 | 2011-01-26 | 钢铁研究总院 | Rotary type material distribution device used for rotary hearth furnace |
| CN101799243A (en) * | 2010-04-12 | 2010-08-11 | 中冶长天国际工程有限责任公司 | Material distributing method and device of circular cooler |
| CN104807328A (en) * | 2015-05-19 | 2015-07-29 | 济南中燃科技发展有限公司 | Method and equipment for bedding material layered material arrangement of sintering machine by using vibrating screen |
| CN205957726U (en) * | 2016-08-30 | 2017-02-15 | 山东钢铁股份有限公司 | A distributing device that is used for metallurgical pelletizing ring cold quick -witted |
| CN108398025A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | Hierarchical and layered material distribution method for sintering machine |
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