CN211012464U - Combustion size classification device for iron-making sintering - Google Patents
Combustion size classification device for iron-making sintering Download PDFInfo
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- CN211012464U CN211012464U CN201921440116.1U CN201921440116U CN211012464U CN 211012464 U CN211012464 U CN 211012464U CN 201921440116 U CN201921440116 U CN 201921440116U CN 211012464 U CN211012464 U CN 211012464U
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Abstract
The utility model discloses a combustion size classification device for iron-making sintering, which comprises a fuel roller for fuel sintering, wherein one end of the fuel roller is provided with a fuel inlet for connecting with an external belt conveying system; the bottom of the other end of the fuel roller is provided with a large-particle fuel outlet; a pneumatic conveying pipeline is arranged in the fuel roller along the axial direction of the fuel roller, a plurality of feed inlets are formed in the pneumatic conveying pipeline and positioned in the fuel roller, the outlet end of the pneumatic conveying pipeline is positioned outside the fuel roller and connected with a suction collecting device, and the suction collecting device is used for generating suction and collecting small-particle fuel in the fuel roller into the fuel roller through the feed inlets and the pneumatic conveying pipeline in sequence; the utility model discloses a cylinder promotes fuel and rolls inside the barrel, utilizes the collection device that breathes in to produce suction simultaneously to with the tiny particle fuel suction in the fuel drum 3, prevent that it from getting into the dust remover and carrying out the postcombustion, block up the dust remover.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of sintering process equipment, especially, relate to an iron-making sintering is with burning particle size classification device.
[ background of the invention ]
The sintering process is a key link in the iron-smelting process, and the principle is that various powdery iron-containing raw materials are mixed with proper amount of fuel and flux, proper amount of water is added, after mixing and pelletizing, the materials are subjected to a series of physical and chemical changes on sintering equipment, and are sintered into blocks, so that the blocks are sent to a blast furnace for the next working procedure.
The fuel for sintering is generally purchased with small-granularity coke, anthracite, semi coke and the like, a roller crusher is adopted to grind the coke to form small-particle materials, the crushed materials are required to be less than 3mm, and the crushed materials are matched with the sintering process to form air draft sintering through ignition, so that heat is provided for the sintering process to promote the sintering to form blocks. Generally, the fuel with the grain size less than 0.3mm can not be effectively sintered, and is aggregated in the dust remover after entering the flue along with the sintering exhaust system, so that the secondary combustion of the fuel in the dust remover is often caused, and hard block-shaped materials are formed to block the dust remover.
In order to eliminate the influence of the particle size of the part of fuel, the prior art adopts a screening mode to carry out secondary classification of the particle size of the fuel, namely, a screening system is used for screening out small-particle-size fuel before the crushed fuel enters a sintering batching system. However, this method has the following disadvantages:
the degree of freedom is not high: once the screening system is built, all the screening systems are fixed devices, the screening effect generated by the devices cannot be changed, and when the sintering working condition or process changes, the control on the particle size distribution of small-particle-size fuel cannot be realized.
Poor adaptability: due to low degree of freedom, the screening system can only be well adapted to the moisture-dried fuel, and can not be adapted to some sintering enterprises with large fuel moisture or frequent change.
The maintenance cost is high: the fuel for sintering is generally produced by adopting a wet quenching process, the sieve plate is frequently stuck and blocked when the corrosion degree of the sieve is high and the water content is larger, the equipment replacement and production maintenance cost is high, and meanwhile, the safety is lower.
[ Utility model ] content
The utility model aims at providing an ironmaking sintering is with burning particle size classification device can adjust the fuel granularity size of collecting as required.
The utility model adopts the following technical scheme: the combustion size classification device for iron-making sintering comprises a fuel roller for fuel sintering, wherein one end of the fuel roller is provided with a fuel inlet for connecting with an external belt conveying system; the bottom of the other end of the fuel roller is provided with a large-particle fuel outlet;
a pneumatic conveying pipeline is arranged in the fuel roller along the axial direction of the fuel roller, one end of the pneumatic conveying pipeline extends into the fuel roller, and the other end of the pneumatic conveying pipeline is an outlet end;
the pneumatic conveying pipeline is arranged on the fuel roller and is internally provided with a plurality of feeding holes, the outlet end of the pneumatic conveying pipeline is arranged outside the fuel roller and is connected with an air suction collecting device, and the air suction collecting device is used for generating suction and collecting small-particle fuel in the fuel roller into the fuel roller through the feeding holes and the pneumatic conveying pipeline in sequence.
Furthermore, the air suction collecting device comprises a sealing chamber communicated with the outlet end of the pneumatic conveying pipeline, a variable frequency fan is installed at the top of the sealing chamber, and a small particle fuel collecting chamber is arranged at the lower part of the sealing chamber.
Furthermore, a dust removal cloth bag is arranged in the middle of the sealing chamber.
Further, the lower part of the sealing chamber is connected with a small particle fuel outlet, and a sealing valve is also arranged on the small particle fuel outlet.
Further, the pneumatic conveying pipeline is installed on the axis of the fuel roller through a sealing bearing, and a sealing layer is arranged between the pneumatic conveying pipeline and the fuel roller.
The utility model has the advantages that: the utility model discloses a cylinder promotes fuel and rolls inside the barrel, utilizes the collection device that breathes in to produce suction simultaneously to with the tiny particle fuel suction in the fuel drum 3, prevent that it from getting into the dust remover and carrying out the postcombustion, block up the dust remover.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a sorting device according to an embodiment of the present invention.
Wherein: 1. a fuel inlet; 3. a fuel roller; 4. a pneumatic conveying pipeline; 5. a feed inlet; 6. a large particle fuel outlet; 7. a sealed chamber; 8. a variable frequency fan; 9. a dust removal cloth bag; 10. a small particle fuel collection chamber; 11. a sealing valve; 12. and (4) a small particle fuel outlet.
[ detailed description ] embodiments
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the utility model discloses iron-making sintering is with burning size fraction sorter, as shown in fig. 1, including being used for fuel sintering's fuel cylinder 3, in order to promote advancing of fuel in fuel cylinder 3, lay fuel cylinder along the fuel advancing direction for fuel advancing direction and horizontal contained angle are about 5. One end of the fuel roller 3 is provided with a fuel inlet 1 which is used for connecting with an external belt conveying system; the bottom of the other end of the fuel roller 3 is provided with a large-particle fuel outlet 6.
A pneumatic conveying pipeline 4 is arranged inside the fuel roller 3 along the axial direction of the fuel roller, one end of the pneumatic conveying pipeline 4 extends into the fuel roller 3, and the other end of the pneumatic conveying pipeline is an outlet end. On the pneumatic conveying pipeline 4, and be located inside 3 fuel drums and seted up a plurality of feed inlets 5, the exit end of pneumatic conveying pipeline 4 is located 3 outsides of fuel drums, and is connected with the collection device that breathes in, and the collection device that breathes in is used for producing suction to it is inside to loop through feed inlet 5, pneumatic conveying pipeline 4 and collect the interior tiny particle fuel of fuel drums 3.
The utility model discloses a rotation of cylinder promotes fuel and rolls in the barrel is inside, and pneumatic conveying pipeline 4 fixes on its axis simultaneously to not rotatory along with it, utilize the collection device that breathes in to produce suction, and with the tiny particle fuel suction in the fuel drum 3, prevent that it from getting into the dust remover and carrying out the postcombustion, block up the dust remover. Can adjust through the power size to frequency conversion fan 8 in the gas absorption device, and then realize inhaling and collecting the tiny particle fuel of different granularity sizes.
Additionally, based on the utility model discloses an innovation thought can have multiple implementation, if directly set up the collection device that breathes in on pneumatic conveying pipeline 4, also can not set up feed inlet 5 on pneumatic conveying pipeline 4, directly inhale the tiny particle fuel through pneumatic conveying pipeline 4.
The embodiment of the utility model provides an in gather device breathes in includes the sealed room 7 that is linked together with pneumatic conveying pipeline 4's exit end, and frequency conversion fan 8, lower part are provided with tiny particle fuel collection room 10 are installed to the top of sealed room 7. Through adjusting the operating frequency of frequency conversion fan 8, can adjust the suction size in whole pneumatic conveyor pipe 4 and the feed inlet 5, and then inhale the tiny particle fuel of different particle diameters, practical more application environment.
In addition, in this way, the variable frequency fan 8 can be mounted on the pneumatic conveying pipeline 4, and the collection chamber 10 is connected to the outlet end of the pneumatic conveying pipeline 4, so that the collection of the small particle fuel can be realized.
In the embodiment of the utility model, the middle part of the sealing chamber 7 is also provided with a dust removal cloth bag 9. The dust removal cloth bag is a conventional dust removal core spare part and plays a role in dust filtration; typically attached to a wire or steel framework. The dust-removing cloth bag 9 is internally provided with a steel framework for supporting the dust-removing cloth bag 9. The dust collecting cloth bag 9 can absorb impurities and dust mixed in the small-particle fuel sucked through the feeding port 5 and the pneumatic conveying pipeline 4, and prevent the pneumatic conveying pipeline 4, the collecting chamber 10 or other parts from being blocked due to excessive impurities or dust. The dust removal cloth bag 9 can also be arranged at the outlet end of the pneumatic conveying pipeline 4, and the effect is better.
In the embodiment of the present invention, the lower portion of the sealing chamber 7 is connected with a small particle fuel outlet 12, and a sealing valve 11 is further installed on the small particle fuel outlet 12. The collected small particle fuel can be discharged through the small particle fuel outlet 12, and then, the collected small particle fuel can be fully utilized. By sealing the valve 11, the amount of discharged small particle fuel can be adjusted. It is also possible to install a sealing valve 11 at the outlet of the collection chamber 10 and then connect the small particle fuel outlet 12.
In the embodiment of the invention, because the whole process of collecting the small-particle fuel is carried out by air suction, air leakage in the whole device is avoided, which can greatly influence the operation of the device and influence the absorption effect. Therefore, the pneumatic conveying pipeline 4 is installed on the axis of the fuel roller 3 through a sealing bearing, and can work while the fuel roller 3 rotates, so that the influence of the rotation of the fuel roller 3 is avoided. In order to avoid air leakage at the contact point of the pneumatic transport channel 4 and the fuel roller 3 during rotation of the fuel roller 3, a sealing layer is provided between the pneumatic transport channel 4 and the fuel roller 3.
The utility model discloses can specifically set up along with many-sided operating mode factor changes such as fuel moisture content, granularity size fraction distribution, broken flow, compensate prior art's defect, improve production stability, economic nature and security. The small particle fuel collection chamber 10 is in an intermittent type mode, the variable frequency fan 8 is started, the sealing valve 11 is closed, and the small particle fuel collection process is carried out; and (4) closing the variable frequency fan 8 and opening the sealing valve 11 to discharge the small granular fuel.
The utility model discloses the degree of freedom is high, can adjust the operating frequency of variable frequency fan 8 according to sintering machine technological requirement to reach the condition of adjustment control power, and then promote the fuel granularity and produce different degree grades, realize small-size fuel size fraction distribution control. The adaptability is strong, the frequency of the variable frequency fan can be adjusted according to the water content and the crushing capacity of the fuel, and the target of grading optimization is further achieved. The maintenance cost is low, and the main corrosion equipment of the device is the sack, and maintenance and replacement cost are lower than using the sieve now, do not need artifical clearance simultaneously, and the security is higher.
Claims (5)
1. The combustion size classification device for iron-making sintering is characterized by comprising a fuel roller (3) for fuel sintering, wherein one end of the fuel roller (3) is provided with a fuel inlet (1) for connecting with an external belt conveying system; the bottom of the other end of the fuel roller (3) is provided with a large-particle fuel outlet (6);
a pneumatic conveying pipeline (4) is arranged in the fuel roller (3) along the axial direction of the fuel roller, one end of the pneumatic conveying pipeline (4) extends into the fuel roller (3), and the other end of the pneumatic conveying pipeline is an outlet end;
the fuel drum is characterized in that a plurality of feed inlets (5) are formed in the fuel drum (3) and are located on the pneumatic conveying pipeline (4), the outlet end of the pneumatic conveying pipeline (4) is located outside the fuel drum (3) and is connected with an air suction collecting device, the air suction collecting device is used for generating suction, and small particle fuel in the fuel drum (3) is collected into the fuel drum sequentially through the feed inlets (5) and the pneumatic conveying pipeline (4).
2. The combustion fraction classification device for ironmaking sintering according to claim 1, characterized in that the suction collection device comprises a sealed chamber (7) communicated with the outlet end of the pneumatic conveying pipeline (4), the top of the sealed chamber (7) is provided with a variable frequency fan (8), and the lower part of the sealed chamber is provided with a small particle fuel collection chamber (10).
3. The combustion size fraction classification apparatus for ironmaking sintering according to claim 2, characterized in that a dust removal cloth bag (9) is further provided in the middle of the sealing chamber (7).
4. The combustion fraction classifying device for ironmaking sintering according to claim 2 or 3, wherein a small particle fuel outlet (12) is connected to a lower portion of the sealed chamber (7), and a sealing valve (11) is further installed on the small particle fuel outlet (12).
5. The combustion fraction classifying device for ironmaking sintering according to claim 4, wherein the pneumatic conveying pipe (4) is mounted on the axis of the fuel drum (3) through a sealing bearing, and a sealing layer is provided between the pneumatic conveying pipe (4) and the fuel drum (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921440116.1U CN211012464U (en) | 2019-09-02 | 2019-09-02 | Combustion size classification device for iron-making sintering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921440116.1U CN211012464U (en) | 2019-09-02 | 2019-09-02 | Combustion size classification device for iron-making sintering |
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| CN211012464U true CN211012464U (en) | 2020-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046103A (en) * | 2021-03-17 | 2021-06-29 | 湖南耕农富硒农业科技股份有限公司 | Processing equipment and processing method of biomass fuel |
-
2019
- 2019-09-02 CN CN201921440116.1U patent/CN211012464U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046103A (en) * | 2021-03-17 | 2021-06-29 | 湖南耕农富硒农业科技股份有限公司 | Processing equipment and processing method of biomass fuel |
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