CN214502100U - Sintering precooling device - Google Patents
Sintering precooling device Download PDFInfo
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- CN214502100U CN214502100U CN202120008873.2U CN202120008873U CN214502100U CN 214502100 U CN214502100 U CN 214502100U CN 202120008873 U CN202120008873 U CN 202120008873U CN 214502100 U CN214502100 U CN 214502100U
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- sintering
- ore
- wind deflector
- sinter
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Abstract
The utility model discloses a sintering is cooling arrangement in advance, wherein, sintering is cooling arrangement in advance includes a hot sintering ore swift current section of thick bamboo, the lateral wall that a hot sintering ore swift current section of thick bamboo is provided with the hot air exitus that is used for the hot-blast outflow that draws, the upper end that a hot sintering ore swift current section of thick bamboo forms the hot mine entry, the lower extreme that a hot sintering ore swift current section of thick bamboo forms the hot mine export, just hot mine entry and hot mine export are imported as the cooling air respectively. The sintering pre-cooling device aims to solve the technical problems that a circular cooler in the sintering cooling process in the prior art is large in cooling air quantity and low in waste heat recovery efficiency.
Description
Technical Field
The utility model relates to a sintering cooling device technical field especially relates to a sintering is cooling device in advance.
Background
The iron and steel industry is the foundation and the pillar industry of national economy in China, the iron and steel smelting in China is mainly based on a long flow of sintering (pelletizing) coking-blast furnace-converter, more than 75% of blast furnace burden is from sintered ore, the sintering process is a high-energy consumption and high-pollution concentrated link in the iron and steel flow, the energy consumption accounts for 10% of the total energy consumption of the iron and steel metallurgy, the amount of discharged waste gas accounts for 50% of the total waste gas amount of the iron and steel industry, and the discharge of micron-sized fine particle dust, SOx, NOx, persistent organic matters, heavy metals and other pollutants in the waste gas all dominates the first place of the iron and steel industry. The sintered hot ore discharged by the existing sintering machine is usually cooled by a circular cooler, and the defects are mainly as follows: the cooling air quantity of the circular cooler is large, and the waste heat recovery efficiency is low.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Based on this, the utility model provides a sintering is cooling device in advance, this sintering is cooling device in advance aims at solving prior art sintering cooling technology zhonghuan cold machine cooling amount of wind big, the low technical problem of waste heat recovery efficiency.
(II) technical scheme
For solving the technical problem, the utility model provides a sintering is cooling device in advance, wherein, sintering is cooling device in advance includes a hot sintering ore swift current section of thick bamboo, the lateral wall of a hot sintering ore swift current section of thick bamboo is provided with the hot air exitus who is used for the hot-blast outflow that draws, the upper end of a hot sintering ore swift current section of thick bamboo forms the hot mine entry, the lower extreme of a hot sintering ore swift current section of thick bamboo forms the hot mine export, just hot mine entry and hot mine export are imported as the cooling air respectively.
Preferably, the hot air outlet is located in the middle of the hot sinter ore chute in the vertical direction.
Preferably, the inner surface of the side wall of the hot-sinter ore chute is connected with a first wind shield, the inner wall surface of the bottom of the hot-sinter ore chute is connected with a second wind shield positioned below the first wind shield, and the hot air outlet is arranged between the first wind shield and the second wind shield.
Preferably, an end portion of the upper surface of the first wind deflector and an end portion of the upper surface of the second wind deflector are respectively provided with a wear-resistant block.
Preferably, the second wind deflector is positioned at the bottom end of the hot sinter ore chute.
Preferably, the side walls of the hot sinter ore chute comprise a first side wall, a second side wall and a third side wall which are adjacent in sequence, the first wind deflector and the second wind deflector are respectively connected to the first side wall, the second wind deflector is lower than the lower end of the third side wall, and the second wind deflector and the lower end of the third side wall form a hot ore outlet which is inclined downwards.
Preferably, the cross section of the hot sinter ore chute is trapezoidal, the upper bottom of the trapezoid corresponds to the position above the side wall of the inner ring of the circular cooler, the lower bottom of the trapezoid corresponds to the position above the side wall of the outer ring of the circular cooler, and the lower bottom is longer than the upper bottom.
Preferably, the upper end of the hot sinter ore chute is connected with the discharge end of a crusher corresponding to the sintering machine, and the lower end of the hot sinter ore chute is connected with the feed end of the ring cooling machine.
Preferably, the upper end of the hot sinter ore chute is connected with the discharge end of a crusher corresponding to the sintering machine, the lower end of the hot sinter ore chute is connected with the feed end of the circular cooler, and the end sidelines of the first wind shield and the second wind shield point to the vertical central axis of the circular cooler.
(III) advantageous effects
The utility model discloses compare with prior art, the beneficial effects of the utility model include:
the sintering pre-cooling device can be arranged on a falling path of hot sintering ore between a discharge end of a crusher corresponding to a sintering machine and a feed end of a ring cooling machine, and forms a two-stage cooling process with the ring cooling machine, the pre-cooling device can pre-cool materials and generate high-quality hot air, so that the cooling air quantity of the ring cooling machine is reduced by more than 15%, the energy-saving effect is achieved overall, and the waste heat recovery efficiency is improved.
When the sintering pre-cooling device is arranged at the tail of the sintering machine, the dust removal effect of the tail of the sintering machine can be enhanced, and even the dust removal air quantity can be reduced;
the sintering pre-cooling device replaces a chute with a very high fall in the prior art, and the pre-cooling device can be filled with mineral aggregate, so that the falling distance of the mineral aggregate is greatly reduced, the falling loss of sintered ore is reduced, and the return ore is reduced;
in the preferred scheme, the cross section of the hot sinter ore chute is trapezoidal, so that the inner and outer rings of the circular cooler can be uniformly distributed, and the cooling efficiency is favorably improved.
Other advantageous effects of the present invention will be described in the following detailed description.
Drawings
The features and advantages of the invention will be more clearly understood by reference to the accompanying drawings, which are schematic and should not be understood as imposing any limitation on the invention, in which:
FIG. 1 is an internal structure view of a sintering pre-cooling apparatus according to a preferred embodiment of the present invention;
FIG. 2 is a top cross-sectional view of a sintering pre-cooling apparatus according to a preferred embodiment of the present invention;
FIG. 3 is a simplified top view of the preferred embodiment sinter pre-cooler assembly with the ring cooler of the present invention;
fig. 4 is an installation application view of the sintering pre-cooling device of the preferred embodiment of the present invention.
Description of reference numerals:
1. sintering machine, 2, crusher, 3, circular cooler, 5, dust removing device, 6, exhaust fan, 7, wear-resistant block, 9, upper bottom, 10, lower bottom, 31, inner ring side wall, 32, outer ring side wall, 100, sintering pre-cooling device, 101, hot sinter ore chute, 102, hot air outlet, 103, hot ore inlet, 104, hot ore outlet, 105, first wind shield, 106, second wind shield, 107, first side wall, 108, second side wall, 109, third side wall, 110, fourth side wall.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.
Referring to fig. 1 to 4, the present invention discloses a sintering pre-cooling device 100, wherein, the sintering pre-cooling device 100 comprises a hot-sinter ore slide cylinder 101, the side wall of the hot-sinter ore slide cylinder 101 is provided with a hot-air outlet 102 for the outflow of the extracted hot air, the upper end of the hot-sinter ore slide cylinder 101 forms a hot-ore inlet 103, the lower end of the hot-sinter ore slide cylinder 101 forms a hot-ore outlet 104, the hot-ore inlet 103 and the hot-ore outlet 104 are respectively used as cooling air inlets, the sintering pre-cooling device 100 may be disposed on a falling path of hot sinter between a discharge end of the crusher 2 and a feed end of the circular cooler 3 corresponding to the sintering machine 1 and may be connected to a waste heat recovery system through the dust removing device 5 and the exhaust fan 6 in sequence, and the pre-cooling device can pre-cool the materials and generate high-quality hot air, so that the cooling air quantity of the circular cooler 3 is reduced by more than 15%.
According to the preferred embodiment of the present invention, the hot air outlet 102 is located at the middle part of the hot-sinter ore chute 101 in the vertical direction, so that the cooling air inlets at the upper end and the lower end of the hot-sinter ore chute 101 enter the hot-sinter ore chute 101, and can pass through the material layer of the hot-sinter ore with almost the same penetration distance (thickness), thereby facilitating the acquisition of high-quality hot air.
According to the embodiment of the present invention, the inner surface of the side wall of the hot-sinter ore chute 101 is connected with the first wind deflector 105, the inner wall surface of the bottom of the hot-sinter ore chute 101 is connected with the second wind deflector 106 located below the first wind deflector 105, and the hot air outlet 102 is arranged between the first wind deflector 105 and the second wind deflector 106, thus, the cooling air entering from the upper end of the hot-sinter ore chute 101 can bypass the first wind deflector 105 and then reach the hot air outlet 102, the cooling air entering from the lower end of the hot-sinter ore chute 101 can bypass the second wind deflector 106 and then reach the hot air outlet 102, the cooling air is in the bypassing process, the contact route with the material layer of the hot-sinter ore is increased, and the material layer penetrating distance is longer, so as to better and more efficiently cool the hot-sinter ore. An end portion of the upper surface of the first wind deflector 105 and an end portion of the upper surface of the second wind deflector 106 are provided with wear-resistant blocks 7 (e.g., high-hardness alloy or the like) respectively to prevent abrasion by the hot sinter.
According to the embodiment of the present invention, the second wind deflector 106 is located at the bottom end of the hot sinter pot 101, the side wall of the hot sinter pot 101 includes the first side wall 107, the second side wall 108 and the third side wall 109 which are adjacent in sequence, more specifically, the side wall further includes the fourth side wall 110, the first side wall 107, the second side wall 108, the third side wall 109 and the fourth side wall 110 enclose the hot sinter pot 101 with a quadrangular cross section, but it is also possible that the number of the side walls is increased or decreased appropriately to form other polygonal cross sections, the first wind deflector 105 and the second wind deflector 106 are connected to the first side wall 107, the second wind deflector 106 is lower than the lower end of the third side wall 109, and the second wind deflector 106 and the lower end of the third side wall 109 form the hot ore outlet 104 which is inclined downward.
According to the utility model discloses a preferred embodiment, the cross section of hot sintering ore swift current section of thick bamboo 101 is trapezoidal, the trapezoidal top position of the inner circle lateral wall 31 of the cold machine 3 of ring of 9 correspondence of going to the bottom, the trapezoidal top position of the outer lane lateral wall 32 of the cold machine 3 of ring of 10 correspondence of going to the bottom, it is longer than the top 9 to go to the bottom 10, that is to say, hot sintering ore swift current section of thick bamboo 101 has bigger blanking space in the outer lane side of the cold machine 3 of ring, perfect matching has so and has adapted to the specific structure of the cold machine 3 of ring, it is even to make the cold machine 3 inner and outer lane cloth of ring, be favorable to improving cooling efficiency, the material falls into whole grain system after the cold machine 3 of ring, finally form finished product sintering ore.
As a specific connection position, the upper end of the hot sinter ore chute 101 can be connected with the discharge end of the crusher 2 corresponding to the sintering machine 1, and the lower end of the hot sinter ore chute 101 can be connected with the feed end of the ring cooler 3. After connection, the respective end edge lines of the first wind deflector 105 and the second wind deflector 106 are preferably directed to the vertical central axis of the circular cooler 3, so that the cross-sectional area of the hot sinter ore chute 101 (or the area of the hot ore outlet 104) can be ensured to match the area between the inner and outer rings of the circular cooler 3.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (9)
1. The sintering pre-cooling device is characterized by comprising a hot-sinter ore sliding barrel, wherein a hot air outlet for extracting hot air to flow out is formed in the side wall of the hot-sinter ore sliding barrel, a hot ore inlet is formed in the upper end of the hot-sinter ore sliding barrel, a hot ore outlet is formed in the lower end of the hot-sinter ore sliding barrel, and the hot ore inlet and the hot ore outlet are respectively used as cooling air inlets.
2. The sinter pre-cooling device as claimed in claim 1, wherein the hot air outlet is located in a middle of the hot sinter ore chute in a vertical direction.
3. The sintering pre-cooling device according to claim 1, wherein a first wind deflector is connected to an inner surface of a side wall of the hot-sinter ore chute, a second wind deflector located below the first wind deflector is connected to an inner wall surface of a bottom of the hot-sinter ore chute, and the hot air outlet is arranged between the first wind deflector and the second wind deflector.
4. The sintering pre-cooling device according to claim 3, wherein an end portion of the upper surface of the first wind deflector and an end portion of the upper surface of the second wind deflector are provided with wear-resistant blocks, respectively.
5. The sinter pre-cooling device as claimed in claim 3, wherein the second damper is located at a bottom end of the hot sinter ore chute.
6. The sinter pre-cooling device as claimed in claim 5, wherein the side walls of the hot sinter ore chute include a first side wall, a second side wall, and a third side wall that are adjacent in sequence, the first wind deflector and the second wind deflector are connected to the first side wall, respectively, the second wind deflector is lower than a lower end of the third side wall, and the second wind deflector and a lower end of the third side wall form a hot ore outlet that is inclined downward.
7. The sintering pre-cooling device as claimed in claim 1, wherein the cross section of the hot sinter ore chute is trapezoidal, the upper bottom of the trapezoid corresponds to the upper position of the side wall of the inner ring of the ring cooling machine, the lower bottom of the trapezoid corresponds to the upper position of the side wall of the outer ring of the ring cooling machine, and the lower bottom is longer than the upper bottom.
8. The sintering pre-cooling device according to any one of claims 1 to 7, wherein the upper end of the hot sinter ore chute is connected with the discharge end of a crusher corresponding to a sintering machine, and the lower end of the hot sinter ore chute is connected with the feed end of a ring cooler.
9. The sintering pre-cooling device according to claim 3, wherein the upper end of the hot sinter chute is connected with the discharge end of a crusher corresponding to the sintering machine, the lower end of the hot sinter chute is connected with the feed end of the circular cooler, and the end side lines of the first wind deflector and the second wind deflector point to the vertical central axis of the circular cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120008873.2U CN214502100U (en) | 2021-01-05 | 2021-01-05 | Sintering precooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120008873.2U CN214502100U (en) | 2021-01-05 | 2021-01-05 | Sintering precooling device |
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| Publication Number | Publication Date |
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| CN214502100U true CN214502100U (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120008873.2U Active CN214502100U (en) | 2021-01-05 | 2021-01-05 | Sintering precooling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295010A (en) * | 2021-01-05 | 2021-08-24 | 中冶长天国际工程有限责任公司 | Sintering precooling device |
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2021
- 2021-01-05 CN CN202120008873.2U patent/CN214502100U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295010A (en) * | 2021-01-05 | 2021-08-24 | 中冶长天国际工程有限责任公司 | Sintering precooling device |
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