CN203080031U - Hierarchically-wrapped non-homogeneous pellet making device - Google Patents
Hierarchically-wrapped non-homogeneous pellet making device Download PDFInfo
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- CN203080031U CN203080031U CN201320005501XU CN201320005501U CN203080031U CN 203080031 U CN203080031 U CN 203080031U CN 201320005501X U CN201320005501X U CN 201320005501XU CN 201320005501 U CN201320005501 U CN 201320005501U CN 203080031 U CN203080031 U CN 203080031U
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- inner ring
- scraper
- outer shroud
- pelletizing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The utility model discloses a hierarchically-wrapped non-homogeneous pellet making device and a hierarchically-wrapped non-homogeneous pellet making method. By using the device disclosed by the utility model, after a required pellet inner mineral powder mixture is humidified and uniformly mixed, the obtained product is added into an inner ring of a pan pelletizer; after mother pellets with a certain size are formed through pelletizing, the mother pellets roll out of the inner ring of a pan and enter the outer ring of the pan; a required pellet outer mineral powder mixture is added in the outer ring, and the obtained product is subjected to mist spray and water supplementing; and the mother pellets ceaselessly grow up in the outer ring, so that special pellets are formed so as to satisfy the production needs, wherein the components of the inner and outer layers of the special pellets are inconsistent.
Description
Technical field
The utility model belongs to ferrous metallurgy and makes the ball field, is specifically related to a kind of layering and wraps up in attached nonuniformity pelletizing palletizing device.
Background technology
Acid pellet is the homogeneous pelletizing that makes by balling disc, is one of main iron-bearing material of blast furnace ironmaking.Because the variation of blast furnace raw material and the increase of production cost, new iron-smelting process such as direct reduction, melting and reducing etc. receive much concern, and have obtained certain development.These technologies differ to the pelletizing feed performance requriements, and the iron-smelting process that has requires the outer layered material of pelletizing to have singularity, and is low such as outer material fusing point height or fusing point, and the iron-smelting process that has requires outer layered material to join charcoal amount and interior layered material to join the charcoal amount and differ.
Rotary hearth furnace directly reduction makes the pearl iron process, green pellets directly reduces through the high temperature rotary hearth furnace and obtains pearl iron, there is the variation of solid-liquid phase in pelletizing in this process, become liquid phase to build up as iron and grow up, and slag is still solid phase, owing to rotary hearth furnace temperature reason, need green-ball to have the advantages that ectonexine character differs, but, can not satisfy obtaining the requirement of pearl iron process owing to, all be that batch mixing evenly obtains even matter pelletizing at present no matter be that disk is made ball or pair roller pressure ball.
The utility model content
For adapting to the demand of iron-smelting process, the utility model provides a kind of layering to wrap up in attached nonuniformity pelletizing palletizing device.Application by this method can obtain the pelletizing that the ectonexine composition differs, and to adapt to the demand of special pelletizing feed, can reach the purpose that reduces raw materials cost simultaneously, reduces the loss of unnecessary charcoal.
Described palletizing device improves based on existing pelletizer, comprise balling disk (-sc), inner ring, outer shroud, scrape frame, scraper, described inner ring and described outer shroud are same balling disk (-sc) planar donuts, the described frame of scraping links to each other with described scraper, described scraper comprises inner ring scraper and outer shroud scraper, described inner ring scraper is positioned at inner ring, and described outer shroud scraper is between inner ring and outer shroud; Described inner ring height is less than the outer shroud height.
Optionally, described balling disk (-sc) inclination angle is 35-50 °.
Optionally, described inner ring height and described disk outer shroud aspect ratio are 1/4～2/3, and described inner ring radius and described outer shroud radius ratio are 1/4～3/4, and described outer shroud height is 0.1～0.13 with described outer ring diameter ratio.
Optionally, describedly scrape frame and scraper is a steel material, scrape frame and be connected with the pelletizer body, two surfaces of scraper reinforce the bigger vulcanite of one deck size respectively, make rubber play the scraper effect, reduce the rigidity friction of scraper and disk.
Optionally, described device also comprises the atomizing hydraulic giant, described atomizing hydraulic giant with link to each other with outer waterworks, the top of described inner ring and described outer shroud is respectively equipped with the atomizing hydraulic giant, described atomizing hydraulic giant along disk diameter to water spray.
It is as follows to utilize pelletizer to make the method for ball:
1) pelletizing internal layer mineral powder mixed material is joined after evenly in the middle of the disk balling disk (-sc) through humidification, mix, through making the mother bulb that ball obtains desired size.
2) mother bulb that will reach desired size rolls out the disk inner ring by centrifugation, enters the disk outer shroud, in outer shroud, pass through to add the outer mineral powder mixed material of required pelletizing, and the spraying humidification mother bulb, mother bulb is grown up gradually, forms to have the special pelletizing that the ectonexine composition differs.
Optionally, described internal layer mineral powder mixed material granularity accounts for more than 70% less than 200 orders less than 80 orders.
Optionally, described internal layer mineral powder mixed material moisture content is controlled at 8%-12%.
Optionally, described mother bulb size is according to special pelletizing feed performance requriements, by control feed rate and disc rotation speed, increases or reduces the mother bulb size, thereby reduce or increase the pelletizing outer layer thickness.
Optionally, described outer mineral powder mixed material granularity control is consistent with the internal layer mineral powder mixed material, and moisture content is controlled at 6-10%.Described internal layer mineral powder mixed material and outer mineral powder mixed material composition batching are different, prepare burden according to required pelletizing performance.
Utilize device of the present utility model and make the ball method and can obtain the nonuniformity pelletizing, add low melting point as the pelletizing internal layer, make the iron liquid that generates in the reduction process shape balling iron of in liquid state, growing up as early as possible, and the fusing point height is wished on the top layer, make the interior pelletizing top layer of stove be solid-state, pelletizing is non-caked each other.Simultaneously because this technology application, make that can obtain ectonexine joins the different nonuniformity pelletizing of charcoal amount, to adapt to the demand of special pelletizing feed, simultaneously some the time can reach the purpose that reduces raw materials cost, join the charcoal amount according to demand as ectonexine and differ, will reduce the loss that causes unnecessary charcoal because of the homogeneous pelletizing like this.
Description of drawings
Fig. 1 is that a kind of layering is wrapped up in attached nonuniformity pelletizing and made ball disk vertical view.
Fig. 2 is that a kind of layering is wrapped up in attached nonuniformity pelletizing and made ball disk A-A face sectional view.
The accompanying drawing mark:
1, water fog nozzle, 2, scrape frame, 3, scraper, 4, balling disk (-sc), 5, vulcanite, 6, outer shroud, 7, inner ring.
Embodiment
The utility model provides a kind of layering to wrap up in attached nonuniformity pelletizing and has made the ball disk, and the utility model is described in further detail below in conjunction with accompanying drawing and embodiment, but be not limited thereto.
Embodiment 1:
As shown in Figure 1, this palletizing device improves based on existing pelletizer, comprises balling disk (-sc) 4, inner ring 7, outer shroud 6, scrapes frame 2, scraper 3.As shown in Figure 2, inner ring 7 is same balling disk (-sc) planar donuts with outer shroud 6, scrapes frame 2 and links to each other with scraper 3, and scraper 2 comprises inner ring scraper and outer shroud scraper, and the inner ring scraper is positioned at inner ring 7, and the outer shroud scraper is between inner ring 7 and outer shroud 6; Inner ring 7 height are less than outer shroud 6 height.Balling disk (-sc) 4 inclination angles are 35-50 °.Inner ring 7 height are 1/4～2/3 with disk outer shroud 6 aspect ratios, and inner ring 7 radiuses and outer shroud 6 radius ratios are 1/4～3/4, and outer shroud 7 height are 0.1～0.13 with outer shroud 6 diameters ratio.
This device also comprises water fog nozzle 1, water fog nozzle 1 with link to each other with outer waterworks, inner ring 7 is respectively equipped with atomizing hydraulic giant 1 with the top of outer shroud 6, water fog nozzle 1 along disk diameter to water spray.
Granularity accounted for 72% internal layer mineral powder mixed material uniform mixing less than 200 orders less than 80 purposes, particle diameter, humidification control compound moisture content is 8% in the mix process, be added to and make ball disk inner ring and make mother bulb, making the ball process looks the balling-up situation and sprays and add water, because centrifugation, the certain size mother bulb rolls out mother bulb and generates district's (inner ring), enters the district's (outer shroud) of growing up.Outer mineral powder mixed material granularity-80 order accounts for 100% ,-200 orders and accounts for 75%, control moisture content is 6% behind the uniform mixing, at the uniform velocity join the district of growing up, and mother bulb spraying added water, impel growing up of pelletizing, reinforced and the velocity of rotation of control, to obtain the pelletizing of required size, gained green-ball index meets technical requirements.
Embodiment 2:
Identical with embodiment 1, just to make the ball disk tilt angle and change 50 ° into, the outer shroud radius becomes 1.2m, and the inner ring radius is 0.9m, and disk outer shroud height is 0.25m, and the inner ring height is 0.16m.Gained green-ball index meets technical requirements.
Embodiment 3:
Identical with embodiment 2, just internal layer mineral powder mixed material granularity-80 order accounts for 100%, and-200 orders account for 80%, and compound moisture content is 12%, and outer mineral powder mixed material granularity-80 order accounts for 100%, and-200 orders account for 76%, and compound moisture content is controlled to be 10%.Gained green-ball index meets technical requirements.
Claims (5)
1. attached nonuniformity pelletizing palletizing device is wrapped up in a layering, it is characterized in that, described device comprises balling disk (-sc), inner ring, outer shroud, scrapes frame and scraper, described inner ring and described outer shroud be positioned on the balling disk (-sc) donut, the described frame of scraping links to each other with described scraper, described scraper comprises inner ring scraper and outer shroud scraper, and described inner ring scraper is positioned at inner ring, and described outer shroud scraper is between inner ring and outer shroud; Described inner ring height is less than the outer shroud height.
2. device according to claim 1 is characterized in that, described balling disk (-sc) inclination angle is 35-50 °.
3. device according to claim 1, it is characterized in that, described inner ring height and described outer shroud aspect ratio are 1/4～2/3:1, and described inner ring radius and described outer shroud radius ratio are at 1/4～3/4:1, and described outer shroud height is 0.1～0.13:1 with described outer ring diameter ratio.
4. device according to claim 1 is characterized in that, describedly scrapes frame and described scraper is a steel material, and described blade surface is wrapped with vulcanite, and described vulcanite plays the scraper effect, and reduces the rigidity friction of scraper and described balling disk (-sc).
5. device according to claim 1, it is characterized in that described device also comprises the atomizing hydraulic giant, described atomizing hydraulic giant with link to each other with outer waterworks, described inner ring and described outer shroud top are respectively equipped with the atomizing hydraulic giant, and described atomizing hydraulic giant is radially sprayed water along balling disk (-sc).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320005501XU CN203080031U (en) | 2013-01-06 | 2013-01-06 | Hierarchically-wrapped non-homogeneous pellet making device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320005501XU CN203080031U (en) | 2013-01-06 | 2013-01-06 | Hierarchically-wrapped non-homogeneous pellet making device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203080031U true CN203080031U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320005501XU Expired - Fee Related CN203080031U (en) | 2013-01-06 | 2013-01-06 | Hierarchically-wrapped non-homogeneous pellet making device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203080031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045860A (en) * | 2013-01-06 | 2013-04-17 | 莱芜钢铁集团有限公司 | Pelletizing device and pelletizing method for layered wrapped non-homogeneous pellets |
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2013
- 2013-01-06 CN CN201320005501XU patent/CN203080031U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045860A (en) * | 2013-01-06 | 2013-04-17 | 莱芜钢铁集团有限公司 | Pelletizing device and pelletizing method for layered wrapped non-homogeneous pellets |
| CN103045860B (en) * | 2013-01-06 | 2014-03-26 | 莱芜钢铁集团有限公司 | Pelletizing device and pelletizing method for layered wrapped non-homogeneous pellets |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20160106 |