CN112683071B - A device and method for efficiently collecting high-temperature smoke at the tail of a sintering machine - Google Patents
A device and method for efficiently collecting high-temperature smoke at the tail of a sintering machine Download PDFInfo
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- 238000005245 sintering Methods 0.000 title claims abstract description 92
- 239000000779 smoke Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 79
- 241000405070 Percophidae Species 0.000 claims description 34
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 29
- 239000003546 flue gas Substances 0.000 claims description 29
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 230000000630 rising effect Effects 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 description 18
- 239000007921 spray Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000004071 soot Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000003500 flue dust Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
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- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
本发明提供了一种用于烧结机尾高温烟尘增效捕集装置及其方法，具有机尾罩、烧结台车、吸风罩、单辊破碎机、扩展罩、引射流系统，烧结矿下落经单辊破碎机破碎产生高温烟尘，所述扩展罩的罩体在机尾罩的基础上向机头方向延伸，所述机尾罩的后部上方设有吸风罩，所述引射流系统使高温烟气在罩内形成定向涡旋以流入烧结台车尾部，并防止烟气从罩体前段冒出。本发明的用于烧结机尾高温烟尘增效捕集装置及其方法能有效降低除尘系统风量，提高高温烟尘捕集效率，防止烟尘外逸，保证了岗位环境和有组织排放的超低排放要求，同时在一定程度上改善烧结矿生产情况，实现了降本增效。
The present invention provides a device and method for collecting high-temperature smoke at the tail of a sintering machine, which comprises a tail cover, a sintering trolley, a suction cover, a single-roll crusher, an extension cover, and an induced jet flow system. The sintered ore falls and is crushed by the single-roll crusher to generate high-temperature smoke. The cover body of the extension cover extends toward the head of the machine on the basis of the tail cover. A suction cover is provided above the rear of the tail cover. The induced jet flow system allows the high-temperature smoke to form a directional vortex in the cover to flow into the tail of the sintering trolley and prevents the smoke from escaping from the front section of the cover body. The device and method for collecting high-temperature smoke at the tail of a sintering machine can effectively reduce the air volume of the dust removal system, improve the efficiency of collecting high-temperature smoke, prevent smoke from escaping, and ensure the ultra-low emission requirements of the workplace environment and organized emissions. At the same time, it improves the production of sintered ore to a certain extent, achieving cost reduction and efficiency improvement.
Description
Technical Field
The invention relates to the field of dust collection and dust removal of sintering high-temperature smoke dust, in particular to a device and a method for collecting high-temperature smoke dust of a sintering machine tail in a synergistic manner.
Background
The sintering production process is that after raw materials such as concentrate powder, limestone, lime and the like are mixed with fuels such as crushed coke, anthracite and the like according to a certain proportion, the materials are distributed at the sintering trolley head, after ignition, the powder is sintered into blocks, the blocks are naturally broken by self gravity from the sintering machine tail, then the blocks are broken by a single-roller crusher, after being screened by a chute, the blocks enter an annular cooler for cooling, finally, the cooled sinter is subjected to granule finishing screening, and the products are conveyed into a sintering finished product bin by a belt for being used in a blast furnace ironmaking method.
The sintering tail smoke dust is mainly generated at the positions of a sintering tail material pouring box, a circular cooler and the like, and has high smoke temperature and high dust concentration. The temperature of dust-containing smoke generated by the sintering machine tail is generally 80-200 ℃, the dust-containing concentration is 5-15 g/m 3, and the smoke and dust paroxysm is strong. A large amount of paroxysmal high-temperature smoke dust can be generated when the sintering trolley is turned downwards to pour. Therefore, great demands are made on the trapping effect of the dust hood.
In the ultra-low emission requirement of the current environmental protection standard, most steel enterprises design larger rated system air quantity to enable the smoke emission concentration of a sintering machine tail dust removal system to reach the standard, so that extremely large energy consumption is caused, the old dust removal hood is unreasonable in structure, small in hood body size, large in high-temperature smoke gas volume, serious in positive pressure in hood, high-temperature smoke dust is forced to emerge from hood body gaps and front ends, the station environment is seriously polluted, the high-temperature smoke dust rises strongly, the rear side suction mode adopted by the old dust removal hood structure is low in high-temperature smoke dust collection efficiency, and a large amount of wild wind is mixed into the dust removal system from the front end of the dust removal hood, so that extremely large energy consumption is also caused.
Therefore, the dust hood of the tail flue gas dust removal system is necessarily modified according to the condition of the sintering production method, so that the production condition of the sintering ore is effectively improved, the air quantity of the dust removal system is reduced, the high-temperature smoke dust trapping efficiency is improved, the smoke dust is prevented from escaping, and the post environment and the ultra-low emission requirement of organized emission are ensured.
Disclosure of Invention
In order to solve the problems, the invention provides a high-temperature smoke dust synergistic trapping device for a sintering machine tail and a method thereof, so as to achieve the purposes of effectively reducing the air quantity of a dust removing system, improving the trapping efficiency of the high-temperature smoke dust, preventing the smoke dust from escaping, and ensuring the post environment and the ultra-low emission requirement of organized emission.
The invention relates to a high-temperature smoke dust synergistic trapping device for a sintering machine tail, which comprises a machine tail cover, a sintering trolley, an induced draft cover, a single-roller crusher, an expansion cover and an injection flow system, wherein sintered ore falls down and is crushed by the single-roller crusher to generate high-temperature smoke dust, the cover body of the expansion cover extends towards the machine head direction on the basis of the machine tail cover, the induced draft cover is arranged above the rear part of the machine tail cover, and the injection flow system enables the high-temperature smoke gas to form directional vortex in the cover to flow into the tail part of the sintering trolley and prevents the smoke gas from overflowing from the front section of the cover body.
Further, the jet flow system comprises a forward jet flow subsystem and a reverse jet flow subsystem, an air curtain formed by the forward jet flow induces wild wind entering from the front end of the cover body to flow into the table surface of the sintering trolley, and an air curtain formed by the reverse jet flow induces a diversion part of high-temperature flue gas to flow into the tail of the sintering trolley.
Further, the forward jet flow subsystem comprises a forward jet flow fan, a forward jet flow air pipe and a forward jet flow duckbill nozzle, external air is introduced through the forward jet flow fan, and is ejected from the forward jet flow duckbill nozzle through the forward jet flow air pipe to form a forward fan-shaped air curtain area.
Further, the reverse jet flow subsystem comprises a reverse jet flow fan, a reverse jet flow air pipe and a reverse jet flow duckbill nozzle, external air is introduced through the reverse jet flow fan, and is ejected from the reverse jet flow duckbill nozzle through the reverse jet flow air pipe to form a reverse fan-shaped air curtain area.
Further, the forward diversion flow duckbill spray head and/or the reverse diversion flow duckbill spray head consists of a circular tube body, an upper plate body and a lower plate body, wherein the upper plate body and the lower plate body are symmetrically arranged on non-parallel surfaces, the symmetrical surfaces of the plate bodies coincide with the axial sections of the circular tube body, the upper plate body and the lower plate body are provided with fan-shaped bodies, the circle center sides of the fan-shaped bodies are intersected with the surface of the circular tube end in a transitional manner, the arc sides of the fan-shaped bodies are not overlapped and intersected to form a spray head port edge, and the two sides of the fan-shaped bodies are overlapped and intersected.
Further, the oblique angle of the non-coincident intersection port of the circular arc sides of the upper plate body and the lower plate body is 10-70 degrees.
Further, the forward drainage subsystem is arranged at the front end of the upper part of the cover body, one set of forward drainage subsystem is arranged at the left side and the right side of the cover body, and the reverse drainage subsystem is arranged between the two sets of forward drainage subsystem at the rear end of the upper part of the cover body.
Further, the forward drainage subsystem is arranged at the front end of the upper part of the cover body and is provided with a plurality of sets, the reverse drainage subsystem is arranged at the rear end of the upper part of the cover body, and the reverse drainage subsystem is arranged in each interval of the forward drainage subsystem.
Further, the forward drainage subsystem is 0.3-1 m away from the left wall and the right wall of the hood body, and the reverse drainage subsystem is arranged at the front end of the air suction hood and is 0.1-1 m away from the air suction hood.
Further, the jet air quantity of the forward jet guiding subsystem and/or the reverse jet guiding subsystem is 2000-20000 m < 3 >/h, the jet air speed is 15-25 m/s, and the horizontal inward extending distance of the air pipe is 0.5-5 m.
Further, the induced draft cover is connected with a dust removal pipeline to an external dust remover, the dust removal air quantity is 15-25 m < 3 >/h, and the distance between the front section of the cover body of the expansion cover and the tail section of the sintering machine is 1-10 m.
Further, the extension cover covers 2-3 trolleys at the tail of the sintering trolley in an extension length mode, and the extension cover is used for capturing high-temperature smoke dust generated when the sintering ore falls down and is crushed by the single-roller crusher.
The invention also provides a process for carrying out high-temperature smoke synergistic trapping according to the high-temperature smoke synergistic trapping device for the sintering machine tail, which comprises the following steps:
S1, feeding, conveying the sinter to 2-3 trolleys at the tail of a sintering machine through sintering trolleys, and covering the sinter through an expansion cover and a tail cover;
S2, guiding the jet flow, wherein the air flows jetted by the forward guiding flow subsystem and the reverse guiding flow subsystem of the jet flow system jointly form an air curtain so as to form directional vortex at the rear part in the cover, and the air curtain covers the tail end of the sintering machine within an attenuation distance;
s3, crushing, namely, the sinter falls down and is crushed by a single-roller crusher, and high-temperature smoke dust is generated during crushing;
S4, induced draft dust removal, wherein an induced draft cover is connected with a dust removal pipeline to an external dust remover, and controls the airflow path of high-temperature smoke rising at the unloading position through forward drainage and reverse drainage, so that the high-temperature smoke rotates at the rear part of the cover body, and high-temperature smoke is captured through the induced draft cover, so that the smoke is prevented from escaping to realize synergistic capture.
Further, the step S2 further includes:
S21, the forward jet flow subsystem comprises a forward jet flow fan, a forward jet flow air pipe and a forward jet flow duckbill nozzle, external air is introduced through the forward jet flow fan and is ejected from the forward jet flow duckbill nozzle through the forward jet flow air pipe to form a forward fan-shaped air curtain area, the reverse jet flow subsystem comprises a reverse jet flow fan, a reverse jet flow air pipe and a reverse jet flow duckbill nozzle, external air is introduced through the reverse jet flow fan and is ejected from the reverse jet flow duckbill nozzle through the reverse jet flow air pipe to form a reverse fan-shaped air curtain area;
s22, an air curtain formed by forward induced jet flows induces wild air entering from the front end of the cover body to flow into the table surface of the sintering trolley, the table surface of the sintering trolley is in a negative pressure state due to the suction force of a machine head dust removing system, the mixed wild air further improves the combustion effect of sintering materials, meanwhile, the air curtain formed by forward induced jet flows is used for sucking high-temperature smoke rising from a discharging position, the smoke is prevented from being emitted from the front end of the cover body, and the injected external air and the high-temperature smoke are mixed for cooling, so that the total smoke volume is reduced, and the dust removing air quantity of the system is reduced;
S23, an air curtain formed by the reverse induced jet induces high-temperature flue gas of the diversion part to flow into the tail part of the sintering machine, so that fuel combustion is accelerated, and the flue gas is prevented from being emitted from the front end of the cover body.
The invention relates to a device and a method for synergy trapping of tail high-temperature smoke dust of a sintering machine, which comprise an extension hood and an injection flow system, wherein the air pressure in the hood is improved by utilizing a hood body mode of the tail hood of the extension hood, an air curtain area is formed by the forward injection flow and the reverse injection flow together, so that smoke gas is prevented from being emitted from the front section of the hood, the high-temperature smoke gas is cooled, the dust removal air quantity of the system is reduced, and the running cost of the system is saved.
Meanwhile, the air curtain formed by the forward induced jet induces the wild wind entering from the front end of the cover body to flow into the tail part of the sintering machine, and the air curtain formed by the reverse induced jet also induces partial high-temperature flue gas to flow into the tail part of the sintering machine, so that the air flow entering the sintering trolley can accelerate fuel combustion, reduce the condition that raw materials are not burnt thoroughly, improve the production condition of the sintering method, reduce the return phenomenon to a certain extent, and increase the production benefit.
In addition, by combining engineering actual condition parameters and through fluid dynamics numerical simulation calculation, the length of the expansion cover, the position and length of the air pipe of the injection flow system, the angle of the duckbill nozzle and the like are optimized, the airflow direction of the dust-containing high-temperature flue gas is reasonably organized, and the flue gas diffusion path is controlled. The sintering tail flue gas dust removal system can effectively reduce the air quantity of the dust removal system, improve the high-temperature flue dust collection efficiency, prevent the flue dust from escaping, ensure the post environment and the ultra-low emission requirement of organized emission, improve the production condition of the sintering ores to a certain extent, and realize cost reduction and synergy.
Drawings
FIG. 1 shows a side view of a synergistic capture device for high temperature soot at the tail of a sintering machine;
FIG. 2 shows a top view of a high temperature soot synergistic capture device for a sintering machine tail;
FIG. 3a shows a side view of a duckbill spray head for a sintering machine tail high temperature soot synergistic capture device;
FIG. 3b shows a front view of a duckbill spray head for a sintering machine tail high temperature soot synergistic capture device;
FIG. 3c shows a rear view of a duckbill spray head for a sintering machine tail high temperature soot synergistic capture device;
In the figure, a machine tail cover, a 2-induced draft cover, a 3-expansion cover, a 4-sintering trolley, a 5-forward jet flow fan, a 6-forward jet flow air pipe, a 7-forward jet flow duckbill nozzle, an 8-reverse jet flow fan, a 9-reverse jet flow air pipe, a 10-reverse jet flow duckbill nozzle and an 11-single-roller crusher are arranged.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Fig. 1-3c show a synergistic capturing device and a synergistic capturing method for high-temperature smoke dust of a sintering machine tail, wherein the synergistic capturing device comprises an expansion cover 3 and an injection flow system, the expansion cover 3 extends towards the machine head direction on the basis of the machine tail cover 1, the length of the expansion cover can cover 2-3 trolleys at the tail part of a sintering trolley 4, an air suction cover 2 is arranged above the rear part of the machine tail cover 1 and is used for capturing the high-temperature smoke dust generated when sinter falls and is crushed by a single-roller crusher 11, the injection flow system comprises a forward injection flow subsystem and a reverse injection flow subsystem, and the forward injection flow subsystem and the reverse injection flow subsystem form a vortex air curtain area together to enable the high-temperature smoke dust to form a directional in the cover, prevent the smoke dust from emerging from the front section of the cover, simultaneously play a role of cooling the high-temperature smoke dust and reduce the dust removal air quantity.
The air curtain formed by the forward induced jet flows into the tail of the sintering machine from the wild wind entering from the front end of the cover body, and meanwhile, the air curtain formed by the reverse induced jet flows into the tail of the sintering machine from the high-temperature flue gas of the split flow part, so that the fuel combustion can be accelerated by the air flow entering the sintering trolley, and the condition that raw materials are not burnt thoroughly is reduced. The dust removal system for the 4 tail flue gas of the sintering trolley can effectively reduce the air quantity of the dust removal system, improve the collection efficiency of high-temperature flue dust, prevent the flue dust from escaping, ensure the post environment and the ultra-low emission requirement of organized emission, improve the production condition of the sintering ores to a certain extent, and realize the cost reduction and synergy.
According to the sintering production method, an inclined backward air suction hood 2 is arranged above the rear part of the hood body of the tail hood 1 and is connected with a dust removal pipeline to an external dust remover, the dust removal air quantity is 15-25 m < 3 >/h, preferably 20m < 3 >/h, and the dust removal pipeline is used for capturing high-temperature smoke dust generated when sinter falls down and is broken by a single-roller breaker 11. The extension cover 3 extends to the aircraft nose direction on the basis of the tail cover 1, and the length can cover 2~3 platform truck exhaust openings of sintering platform truck 4 afterbody, and is preferably 3, and the cover body anterior segment is 1~ 10m from sintering platform truck 4 tail section distance for enlarge whole cover body space, improve the interior atmospheric pressure condition of cover.
The jet flow system comprises a forward jet flow guiding subsystem and a reverse jet flow guiding subsystem, and the air flows sprayed by the forward jet flow guiding subsystem and the reverse jet flow guiding subsystem jointly form an air curtain area to prevent smoke from overflowing from the front section of the cover body.
The forward jet flow guiding subsystem comprises a forward jet flow blower 5, a telescopic forward jet flow air pipe 6 and a forward jet flow duckbill nozzle 7, wherein the port of the forward jet flow duckbill nozzle 7 forms an oblique angle of 10-70 degrees, external air is introduced through the blower and is jetted out from the nozzle through the air pipe to form a fan-shaped air curtain, the jet air quantity is 2000-20000 m < 3 >/h, the jet air speed is 15-25 m/s, the horizontal inward extending distance of the air pipe is 0.5-5 m, and the air curtain formed by the forward jet flow guiding is ensured to cover the tail end of the sintering trolley 4 in the attenuation distance.
The air curtain formed by the forward induced jet can induce the wild wind mixed from the front end of the cover body to approach the table surface of the sintering trolley 4, the table surface of the sintering trolley 4 is in a negative pressure state due to the suction force of the machine head dust removal system, and the mixed wild wind can further improve the combustion effect of the sintering material and improve the production condition of the sintering ore.
Meanwhile, the air curtain formed by the forward induced jet can entrain high-temperature smoke rising from the unloading position, and prevent the smoke from rising from the front end of the cover body.
The forward drainage subsystem is arranged at the front end of the upper part of the hood body, the left side and the right side of the hood body are respectively provided with a set of air curtain which is 0.3-1m away from the left wall and the right wall of the hood body, and the air curtain formed by the forward drainage subsystem can control the high-temperature flue gas to form directional vortex at the rear part in the hood, so that the air suction hood 2 is favorable for capturing the flue gas.
The reverse jet flow subsystem comprises a reverse jet flow fan 8, a reverse jet flow air pipe 9 and a reverse jet flow duckbill nozzle 10, wherein the port of the reverse jet flow duckbill nozzle 10 forms an inclined angle of 10-70 degrees, external air is introduced through the fan and is ejected from the nozzle through the air pipe to form a fan-shaped air curtain, the jet air quantity is 2000-20000 m < 3 >/h, the jet air speed is 15-25 m/s, the horizontal outward extension distance of the air pipe is 0.5-5 m, the air curtain formed by the reverse jet flow is ensured to cover the tail end of the sintering trolley 4 within the attenuation distance, the air quantity of the system is effectively reduced, meanwhile, the air curtain formed by the reverse jet flow also induces the high-temperature flue gas of the diversion part to flow into the tail part of the sintering machine, the fuel combustion is accelerated, and the sintering production condition is improved.
The reverse induced jet subsystem is arranged in front of the cover body induced draft cover 2, is 0.1-1 m away from the cover body induced draft cover 2, and an air curtain formed by the reverse induced jet can control high-temperature smoke to form directional vortex at the rear part in the cover so as to prevent the smoke from being emitted from the front end of the cover body and be beneficial to the induced draft cover 2 to trap the smoke.
The method comprises the steps of controlling the airflow path of high-temperature flue gas rising at the discharging position through forward drainage and reverse drainage to enable the high-temperature flue gas to rotate at the rear part of the cover body to form a directional vortex, and finally collecting the high-temperature flue gas by the air suction cover 2 of the cover body, so that the environment pollution caused by the front end of the cover body is prevented, the injected external air and the high-temperature flue gas are mixed and cooled, the total flue gas volume is reduced, the dust removal air quantity of a system is reduced, energy conservation and efficiency improvement are realized, the induced airflow entering the sintering trolley 4 trolley can accelerate fuel combustion, the raw material unburnt phenomenon is reduced, and the sintering production condition is improved.
According to another embodiment of the invention, another synergistic trapping device for high-temperature smoke dust of a sintering machine tail and a method thereof are provided, and the synergistic trapping device comprises the following steps:
s1, feeding, conveying the sinter to 2-3 trolleys at the tail of a sintering machine through a sintering trolley 4, and covering the sinter through an expansion cover 3 and a tail cover 1;
S2, guiding the jet flow, wherein the air flows jetted by the forward guiding flow subsystem and the reverse guiding flow subsystem of the jet flow system jointly form an air curtain so as to form directional vortex at the rear part in the cover, and the air curtain covers the tail end of the sintering machine within an attenuation distance;
s3, crushing, namely, the sintered ore falls down and is crushed by a single-roller crusher 11, and high-temperature smoke dust is generated during crushing;
s4, induced draft dust removal, wherein an induced draft cover 2 is connected with a dust removal pipeline to an external dust remover, and controls the airflow path of high-temperature smoke rising at the unloading position through forward drainage and reverse drainage to enable the high-temperature smoke to rotate at the rear part of the cover body, and high-temperature smoke is captured through the induced draft cover 2, so that the smoke is prevented from escaping, and synergistic capture is realized.
Wherein, the step S2 further includes:
s21, the forward jet flow subsystem comprises a forward jet flow fan 5, a forward jet flow air pipe 6 and a forward jet flow duckbill nozzle 7, external air is introduced through the forward jet flow fan 5 and is ejected from the forward jet flow duckbill nozzle 7 through the forward jet flow air pipe 6 to form a forward fan-shaped air curtain area, the reverse jet flow subsystem comprises a reverse jet flow fan 8, a reverse jet flow air pipe 9 and a reverse jet flow duckbill nozzle 10, external air is introduced through the reverse jet flow fan 8 and is ejected from the reverse jet flow duckbill nozzle 10 through the reverse jet flow air pipe 9 to form a reverse fan-shaped air curtain area;
S22, an air curtain formed by forward induced jet flows induces wild air entering from the front end of the cover body to flow into the table surface of the sintering trolley 4, the table surface of the sintering trolley 4 is in a negative pressure state due to the suction force of a machine head dust removing system, the mixed wild air further improves the combustion effect of sintering materials, meanwhile, the air curtain formed by forward induced jet flows sucks high-temperature smoke rising from a discharging position, the high-temperature smoke is prevented from being emitted from the front end of the cover body, and the injected external air and the high-temperature smoke are mixed for cooling, so that the total smoke volume is reduced, and the dust removing air quantity of the system is reduced;
S23, an air curtain formed by the reverse induced jet induces high-temperature flue gas of the diversion part to flow into the tail part of the sintering machine, so that fuel combustion is accelerated, and the flue gas is prevented from being emitted from the front end of the cover body.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (9)
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| CN116803464B (en) * | 2023-06-27 | 2024-02-27 | 西安建筑科技大学 | Paroxysmal high-temperature smoke trapping device based on vortex capacity storage principle |
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| CN214120807U (en) * | 2021-01-21 | 2021-09-03 | 中冶建筑研究总院有限公司 | Be used for sintering machine tail high temperature smoke and dust increase entrapment device |
| CN116803464A (en) * | 2023-06-27 | 2023-09-26 | 西安建筑科技大学 | Paroxysmal high-temperature smoke and dust collection device based on eddy current storage principle |
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| JPH1172291A (en) * | 1997-08-29 | 1999-03-16 | Kawasaki Steel Corp | Dust collection method for sintering equipment |
| KR100620098B1 (en) * | 2003-12-31 | 2006-09-11 | 주식회사 포스코 | Cross section observation device and method for drop sintering cake of sintering machine |
| JP4976721B2 (en) * | 2006-03-30 | 2012-07-18 | 株式会社神戸製鋼所 | Exhaust gas circulation method sintering operation method and apparatus |
| CN202032890U (en) * | 2010-12-20 | 2011-11-09 | 昆明理工大学 | Novel mobile sintering machine tail flue gas cyclic utilization sulfur dioxide emission reduction apparatus |
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| CN214120807U (en) * | 2021-01-21 | 2021-09-03 | 中冶建筑研究总院有限公司 | Be used for sintering machine tail high temperature smoke and dust increase entrapment device |
| CN116803464A (en) * | 2023-06-27 | 2023-09-26 | 西安建筑科技大学 | Paroxysmal high-temperature smoke and dust collection device based on eddy current storage principle |
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