CN111595152A - Movable circulating flue gas hood on sintering machine - Google Patents

Movable circulating flue gas hood on sintering machine Download PDF

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Publication number
CN111595152A
CN111595152A CN202010451948.4A CN202010451948A CN111595152A CN 111595152 A CN111595152 A CN 111595152A CN 202010451948 A CN202010451948 A CN 202010451948A CN 111595152 A CN111595152 A CN 111595152A
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China
Prior art keywords
flue gas
hood
sintering machine
circulating flue
inlet pipe
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CN202010451948.4A
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CN111595152B (en
Inventor
赵文书
佘雪峰
王建芳
刘松昊
李晓海
朱珂纬
范常宏
李英涛
梁玉霞
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University of Science and Technology Beijing USTB
Delong Steel Ltd
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University of Science and Technology Beijing USTB
Delong Steel Ltd
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Application filed by University of Science and Technology Beijing USTB, Delong Steel Ltd filed Critical University of Science and Technology Beijing USTB
Priority to CN202010451948.4A priority Critical patent/CN111595152B/en
Publication of CN111595152A publication Critical patent/CN111595152A/en
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Publication of CN111595152B publication Critical patent/CN111595152B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B21/00Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses a movable circulating flue gas hood on a sintering machine, which comprises a plurality of sections of arched hood bodies with head and tail mutually matched in a sealing way, wherein rollers are arranged at the bottoms of two sides of each section of arched hood body; the upper part of each section of the arched cover body is provided with a telescopic vertical air inlet pipe, the telescopic vertical air inlet pipe is provided with a plurality of sections of mutually nested sleeves, a lifting traction mechanism of the telescopic vertical air inlet pipe is arranged on a circulating flue gas main flue, the circulating flue gas main flue is connected with an air box below a sintering machine through a circulating flue gas branch pipeline, and the air box is respectively arranged below a machine head ignition section and a combustion tail section of the sintering machine. The movable circulating flue gas hood on the sintering machine has the characteristics of simple structure, good sealing effect, convenience in maintenance, overhaul and lubrication of the sintering machine, convenience in trolley replacement and the like.

Description

Movable circulating flue gas hood on sintering machine
Technical Field
The invention relates to the technical field of sintering machines used in the steel industry, in particular to a movable type circulating flue gas hood on a sintering machine.
Background
The sintering flue gas circulation technology is characterized in that flue gas of a wind box at the main flue part of the sintering machine is extracted, after dust is removed, the flue gas and flue gas led out from a sintering cooler and/or an oxygen supply machine enter a mixer to be mixed to form mixed hot flue gas, and then the mixed hot flue gas is sent to the surface of a material layer of the sintering machine to be subjected to circulating sintering so as to reduce the flue gas amount of the sintering machine and realize hot air sintering. The flue gas sealing cover for ensuring that the circulating flue gas does not leak and reducing the leakage of normal-humidity air is an important structure for recycling the sintering flue gas.
In the prior art, after flue gas of a high-temperature air box is selected by adopting flue gas circulation and enters a circulating system, the temperature of flue gas discharged outside a main flue is reduced, and condensed water vapor is easy to corrode pipelines and equipment. In the continuous sintering feeding process, due to fluctuation changes in the granulating and sintering processes, under the condition that the air permeability of a sintering bed layer is suddenly reduced, a large amount of flue gas is gathered in a flue gas sealing cover, so that the pressure in the cover is increased, and the flue gas in the cover is directly discharged in a common way, so that although the pressure in the cover is reduced, a large amount of flue gas waste heat is wasted.
In addition, the circulating flue gas hood on the existing sintering machine is fixedly arranged at the upper end of the sintering machine. When the interior of the sintering machine needs to be maintained or overhauled, the circulating flue gas hood needs to be dismantled for overhauling. However, the circulating flue gas hood is connected with a flue gas circulating pipeline, and the circulating flue gas hood is provided with a heat insulation material layer, so that the lifting load is heavy, the disassembly process is complex, time and labor are wasted, and great inconvenience is brought to the maintenance work.
Therefore, a need exists for a flue gas sealing cover, which can solve the problem of inconvenience in overhauling a sintering machine and difficulty in dismounting in the prior art.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the movable type circulating flue gas hood on the sintering machine, which has the advantages of simple structure, good sealing effect, convenience in maintenance, overhaul and lubrication of the sintering machine and convenience in trolley replacement.
In order to achieve the purpose, the technical scheme of the invention is to provide a movable type circulating flue gas hood on a sintering machine, wherein the circulating flue gas hood comprises at least two sections of arched hood bodies with the heads and the tails mutually matched in a sealing manner, the bottoms of two sides of each section of arched hood body are respectively provided with at least two rollers, at least one driving wheel is arranged in at least two rollers on each side, the other roller is a driven roller, a driving motor is arranged on the driving wheel, and the rollers move along a circulating flue gas hood moving track arranged on the ground or on a sintering machine and positioned on table tops on two sides of a trolley; the upper part of each section of the arched cover body is provided with a telescopic vertical air inlet pipe, the telescopic vertical air inlet pipe is at least provided with two sections of mutually nested sleeves, one end of the telescopic vertical air inlet pipe positioned at the lowest section is connected with the upper end of the arched cover body, one end of the telescopic vertical air inlet pipe positioned at the uppermost section is connected with a transverse circulating flue gas main flue, a lifting traction mechanism of the telescopic vertical air inlet pipe is arranged on the circulating flue gas main flue or a lifting frame thereof, the circulating flue gas main flue is connected with an air box below the sintering machine through a circulating flue gas branch pipeline, and the air box is respectively arranged below a machine head ignition section and a combustion tail section of.
For the convenience of telescopic vertical intake pipe and the mobilizable arch cover on the air inlet can be accurate, convenient, swiftly be connected, preferred technical scheme is that the upper end of the arch cover is equipped with the taper pipe with telescopic vertical intake-tube connection, the lower extreme of taper pipe is equipped with the ladder pipeline section, the ladder pipeline section passes the top of the arch cover, be equipped with the external screw thread on the ladder pipeline section, with external screw thread and nut cooperation on the ladder pipeline section, with taper pipe and the fixed connection of the arch cover, the outer wall that the taper pipe is located the arch cover upper portion is the big conical surface of the little lower extreme in upper end, make into the conical inner wall with taper pipe upper end outer wall looks adaptation with telescopic vertical intake.
In order to ensure that the arched cover body can transversely reciprocate and realize good sealing performance with the bottom, the preferable technical scheme is that the roller is arranged on the side surface of the bottom edge of the arched cover body through a roller shaft, the bottom surface of the bottom edge of the arched cover body is in sealing fit with the ground or the table tops on the sintering machine, which are positioned on two sides of the trolley, asbestos gaskets are arranged between the matching surfaces, and the transverse convex edges and the grooves which are matched with each other are respectively arranged on the bottom edge of the arched cover body and the ground or the table tops on the sintering machine, which are positioned on two sides of the trolley.
In order to accurately reach the initial position after the arched cover body is reset, the telescopic vertical air inlet pipe can be aligned to and inserted into the taper pipe arranged on the arched cover body, and further, the technical scheme is preferably that a fixed position sensor and a moving position sensor are respectively arranged on the track and the arched cover body towards the track, and the installation position of the fixed position sensor corresponds to the installation position of the telescopic vertical air inlet pipe.
In order to ensure the sealing effect in the use between the movable circulating flue gas cover section and the section formed by splicing the multiple sections, the further preferred technical scheme is that the arch cover body with the mutually sealed and matched head and tail comprises step structure edges which are respectively arranged at two ends of the arch cover body and are buckled with each other, and asbestos gaskets are arranged at the edge parts of the two step structure edges which are buckled with each other.
In order to facilitate the accurate control of the transverse movement position and the movement speed of the arched cover body, the optimized technical scheme is that the driving motor is a servo motor and is synchronously driven by the servo motors arranged on the rollers on the two sides of the arched cover body.
In order to ensure that the telescopic vertical air inlet pipe can freely rise and fall, is flexible and reliable and has a good sealing effect in a use state, the preferred technical scheme is that the telescopic vertical air inlet pipe at least comprises two sections of sleeves which are inserted from small to large in a nested mode, wherein one end of the large sleeve is provided with an inward flange, one end of the small sleeve is provided with an outward flange, and one end of the inward flange of the large sleeve and one end of the outward flange of the small sleeve are matched with each other to form a sealing structure.
In order to simplify the structure of the telescopic driving mechanism of the telescopic vertical air inlet pipe, reduce the cost of the telescopic driving mechanism and facilitate the maintenance of the telescopic driving mechanism, the preferable technical scheme is that the lifting traction mechanism comprises a traction motor installed on an auxiliary support, a roller is installed on an output shaft of the traction motor and connected with one end of a traction rope, the other end of the traction rope is connected with a lifting lug on the outer pipe wall of the lowest section of the telescopic vertical air inlet pipe, and the auxiliary support is connected on the outer wall of a circulating flue gas main flue or installed on a support frame connected with the ground. Of course, the lifting traction mechanism can also be driven by a linear motor.
In order to facilitate the adjustment of the flow of the flue gas flowing into the telescopic vertical air inlet pipe, the preferable technical scheme is that an adjusting part for adjusting and controlling the flow of the flue gas flowing into the telescopic vertical air inlet pipe is arranged at the position, where the telescopic vertical air inlet pipe is located, on the transverse circulating flue gas main flue.
In order to facilitate the adjustment of the flow of the flue gas flowing into the telescopic vertical air inlet pipe, a further preferred technical scheme is that the adjusting part comprises a conical plug, the conical surface of the conical plug corresponds to the telescopic vertical air inlet pipe, the big end of the conical plug is connected with one side of a nut through a connecting rod, the other side of the nut is provided with a sliding block in sliding fit with a guide groove, the nut is in threaded fit with a lead screw, one end of the lead screw is connected with a driving shaft of a servo motor, a guide part provided with the guide groove and the servo motor are installed on the outer wall of a transverse circulating flue gas main flue through an auxiliary support or a support frame connected with the ground, and the connecting rod penetrates through the pipe wall of the transverse circulating flue gas main flue.
The movable circulating flue gas hood has the advantages and beneficial effects that the movable circulating flue gas hood on the sintering machine has the characteristics of simple structure, good sealing effect, convenience in maintenance, overhaul and lubrication of the sintering machine, convenience in trolley replacement and the like.
The movable circulating flue gas hood is characterized in that the movable circulating flue gas hood comprises rollers arranged on the bottom edges of two sides of the flue gas hood, the rollers comprise driving rollers connected with a driving motor, and driven rollers connected with the bottom edges of two sides of the flue gas hood through a roller shaft. The flue gas cover can move along the track under the drive of the driving roller wheel, and the vertical air inlet pipe can be made into a telescopic structure in order to avoid changing the relative position between the vertical air inlet pipe and the transverse circulating flue gas main flue in the moving process of the flue gas cover. When the flue gas cover needs to move transversely, the vertical air inlet pipe connected with the top of the flue gas cover can be contracted upwards to be separated from the flue gas cover, then the roller driving motor is started in the positive direction, so that the driving roller and the driven roller drive the smoke cover to move in the positive direction, when the positive moving position of the flue gas hood is separated from the upper part of the sintering machine and the trolley, the maintenance and the like can be carried out on the sintering machine and the trolley, when the roller driving motor is started reversely, the driving roller and the driven roller reversely move the driving smoke cover to reset, in order to ensure that the smoke hood can return to the original position accurately, a fixed position sensor and a movable position sensor are respectively arranged on the track and under the bottom edge of the smoke hood, when the fixed position sensor and the movable position sensor are overlapped together, the smoke cover is shown to return to the original position, and at the moment, the telescopic vertical air inlet pipe can extend downwards and be inserted into the top end of the smoke cover again.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a mobile circulating flue gas hood on a sintering machine according to the present invention;
FIG. 2 is a schematic end view of the circulating flue gas hood of FIG. 1 in use;
FIG. 3 is a schematic view of the end face structure of the circulating flue gas hood of FIG. 1 in a maintenance state;
FIG. 4 is a side view schematic of FIGS. 2 and 3;
FIG. 5 is a schematic top view of FIGS. 2 and 3;
fig. 6-1 is a schematic view of a portion a in fig. 2, and fig. 6-2 is a partially enlarged structure of a portion B in fig. 2.
In the figure: 1. an arched cover body; 1.1, bottom edge; 1.2, edges of a step structure; 2. a drive wheel; 2.1, driven roller; 3. a drive motor; 4. a ground surface; 5. sintering machine; 6. a trolley; 7. a track; 8. a telescopic vertical air inlet pipe; 8.1, inward flanging; 8.2, flanging; 8.3, lifting lugs; 8.4, a balancing weight; 9. transversely circulating a flue gas main flue; 10. a branch circulating flue gas pipeline; 11. an air box; 12. a taper pipe; 13. a nut; 14. a roll shaft; 15. an asbestos gasket; 16. a lateral flange; 17. a groove; 18. a fixed position sensor; 19. a mobile position sensor; 20. an auxiliary support; 21. a traction motor; 22. a drum; 23. a hauling rope; 24. a support frame; 25. a conical plug; 26. a connecting rod; 27. a nut; 28. a slider; 29. a lead screw; 301. a servo motor; 31. a guide member.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 4, the invention relates to a movable circulating flue gas hood on a sintering machine, which comprises a plurality of sections of arched hood bodies 1 with the heads and the tails matched with each other in a sealing way, wherein the bottoms of two sides of each section of arched hood body are respectively provided with two rollers, one driving wheel 2 is arranged in the two rollers at each side, the other driven roller 2.1 is provided with a driving motor 3, and the rollers move along a track 7 for moving of the circulating flue gas hood on the table top arranged on the ground 4 or the table top on the sintering machine 5 and positioned on two sides of a trolley 6; the upper portion of every section of the arched cover body 1 is provided with a telescopic vertical air inlet pipe 8, the telescopic vertical air inlet pipe 8 is provided with 4 sections of mutually nested sleeve pipes, one end of the telescopic vertical air inlet pipe 8 positioned at the lowest section is connected with the upper end of the arched cover body 1, one end of the telescopic vertical air inlet pipe 8 positioned at the uppermost section is connected with a transverse circulating flue gas main flue 9, a lifting traction mechanism of the telescopic vertical air inlet pipe 8 is arranged on the circulating flue gas main flue or a lifting frame of the circulating flue gas main flue, the circulating flue gas main flue is connected with an air box 11 below the sintering machine 5 through a circulating flue gas branch pipeline 10, and the air box 11 is respectively arranged below the ignition section and the combustion tail section of the sintering machine 5.
In order to facilitate the telescopic vertical air inlet pipe 8 to be accurately, conveniently and quickly connected with an air inlet on the movable arched cover body 1, the upper end of the arched cover body 1 is provided with a taper pipe 12 connected with the telescopic vertical air inlet pipe 8, the lower end of the taper pipe is provided with a step pipe section, the step pipe section penetrates through the top of the arched cover body 1, the step pipe section is provided with external threads, the external threads on the step pipe are in threaded fit with a nut 13, the taper pipe 12 is fixedly connected with the arched cover body 1, the outer wall of the taper pipe 12, which is positioned at the upper part of the arched cover body 1, is a conical surface with a small upper end and a large lower end, and the inner wall of the lowest section of the telescopic vertical air inlet pipe 8 is.
In order to ensure that the arched cover body 1 can transversely reciprocate and can realize good sealing performance with the bottom, the invention further has the preferable embodiment that the roller wheels are arranged on the side surface of the bottom edge of the arched cover body 1 through the roller shafts 14, the bottom surface of the bottom edge 1.1 of the arched cover body 1 is in sealing fit with the ground 4 or the table tops of the sintering machine 5 positioned at two sides of the trolley 6, asbestos gaskets 15 are arranged between the matching surfaces, and the transverse convex edges 16 and the grooves 17 which are mutually matched are respectively arranged on the bottom edge of the arched cover body 1 and the ground 4 or the table tops of the sintering machine 5 positioned at two sides of the trolley 6.
In order to achieve the goal that the arched hood 1 reaches the initial position accurately after being reset, and the telescopic vertical air inlet pipe 8 can be aligned with and inserted into the taper pipe 12 installed on the arched hood 1, the invention further has the preferred embodiment that a fixed position sensor 18 and a moving position sensor 19 are respectively installed on the rail 7 and the arched hood 1 facing the rail 7, and the installation position of the fixed position sensor 18 on the rail 7 corresponds to the installation position of the telescopic vertical air inlet pipe 8.
In order to ensure the sealing effect between the sections of the mobile circulating flue gas hood formed by splicing multiple sections and in the using process, the invention further has the preferable embodiment that the arched hood body 1 which is mutually sealed and matched from head to tail comprises ladder-structure edges 1.2 which are respectively arranged at two ends of the arched hood body 1 to form mutual buckling, and asbestos gaskets 15 are arranged at the positions of the ladder-structure edges 1.2 which are mutually buckled.
In order to facilitate accurate control of the transverse movement position and the movement speed of the arched cover body 1, in a preferred embodiment of the present invention, the driving motor 3 is a servo motor, and the servo motors arranged on the driving rollers 2 on the two sides of the arched cover body 1 are driven synchronously.
In order to ensure that the telescopic vertical air inlet pipe 8 is free to lift, flexible and reliable and has a good sealing effect in a use state, the preferred embodiment of the invention is that the telescopic vertical air inlet pipe 8 comprises 4 sections of sleeves which are nested and inserted from small to large, wherein one end of the large sleeve is provided with an inner flanging 8.1, one end of the small sleeve is provided with an outer flanging 8.2, and one end of the inner flanging 8.1 of the large sleeve and one end of the outer flanging 8.2 of the small sleeve are matched with each other to form a sealing structure.
In order to simplify the structure of the telescopic driving mechanism of the telescopic vertical air inlet pipe 8, reduce the cost of the telescopic driving mechanism and facilitate the maintenance of the telescopic driving mechanism, the preferred embodiment of the invention is that the lifting traction mechanism comprises a traction motor 21 arranged on an auxiliary support 20, a roller 22 is arranged on an output shaft of the traction motor 21, the roller 22 is connected with one end of a traction rope 23, the other end of the traction rope 23 is connected with a lifting lug 8.3 on the outer pipe wall of the lowest section of the telescopic vertical air inlet pipe 8, and the auxiliary support 20 is connected on the outer wall of the transverse circulating flue gas main flue 9 or is arranged on a support frame 24 connected with the ground 4. Of course, the lifting traction mechanism can also be driven by a linear motor, and in order to prevent the problem that the telescopic vertical air inlet pipe 8 is not easy to stretch out by a card owner in the downward stretching process, a balancing weight 8.4 can be additionally arranged on the lifting lug.
In order to facilitate the adjustment of the flow rate of the flue gas flowing into the telescopic vertical gas inlet pipe 8, in a preferred embodiment of the invention, an adjusting component for adjusting and controlling the flow rate of the flue gas flowing into the telescopic vertical gas inlet pipe 8 is arranged on the transverse circulating flue gas main flue 9 and at the position where the telescopic vertical gas inlet pipe 8 is located.
In order to adjust the flow of the flue gas flowing into the telescopic vertical air inlet pipe 8 conveniently, in a further preferred embodiment of the present invention, the adjusting component includes a conical plug 25, the conical surface of the conical plug 25 corresponds to the position of the telescopic vertical air inlet pipe 8, the large end of the conical plug 26 is connected with one side of a nut 27 through a connecting rod 26, the other side of the nut 27 is provided with a slide block 28 in sliding fit with a guide groove, the nut 27 is in threaded fit with a lead screw 29, one end of the lead screw 29 is connected with a driving shaft of a servo motor 30, a guide 31 provided with a guide groove and the servo motor 30 are installed on the outer wall of the transverse circulating flue gas main flue 9 through an auxiliary bracket 20 or on a support frame 24 connected with the ground 4, wherein the connecting rod 26 penetrates through the pipe wall of the transverse circulating flue gas main.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A movable circulating flue gas hood on a sintering machine is characterized in that the circulating flue gas hood comprises at least two sections of arched hood bodies with the heads and the tails mutually matched in a sealing manner, at least two rollers are arranged at the bottoms of two sides of each section of arched hood body, at least one driving wheel is arranged in at least two rollers on each side, the other roller is a driven roller, a driving motor is arranged on each driving wheel, and the rollers move along a circulating flue gas hood moving track arranged on the ground or on the sintering machine and positioned on table tops of two sides of a trolley; the upper part of each section of the arched cover body is provided with a telescopic vertical air inlet pipe, the telescopic vertical air inlet pipe is at least provided with two sections of mutually nested sleeves, one end of the telescopic vertical air inlet pipe positioned at the lowest section is connected with the upper end of the arched cover body, one end of the telescopic vertical air inlet pipe positioned at the uppermost section is connected with a transverse circulating flue gas main flue, a lifting traction mechanism of the telescopic vertical air inlet pipe is arranged on the circulating flue gas main flue or a lifting frame thereof, the circulating flue gas main flue is connected with an air box below the sintering machine through a circulating flue gas branch pipeline, and the air box is respectively arranged below a machine head ignition section and a combustion tail section of.
2. The mobile circulating flue gas hood on the sintering machine according to claim 1, characterized in that a taper pipe connected with the telescopic vertical gas inlet pipe is arranged at the upper end of the arched hood body, a stepped pipe section is arranged at the lower end of the taper pipe, the stepped pipe section passes through the top of the arched hood body, an external thread is arranged on the stepped pipe section, the taper pipe is fixedly connected with the arched hood body by matching the external thread on the stepped pipe with a nut, the outer wall of the taper pipe at the upper part of the arched hood body is a conical surface with a small upper end and a large lower end, and the inner wall of the lowest section of the telescopic vertical gas inlet pipe is made into a conical inner wall matched.
3. The mobile circulating flue gas hood on a sintering machine according to claim 2, wherein the rollers are mounted on the side surfaces of the bottom edges of the arched hood bodies by means of roller shafts, the bottom surfaces of the bottom edges of the arched hood bodies are in sealing engagement with the ground or the faces of the sintering machine on both sides of the pallet, asbestos gaskets are provided between the engagement surfaces, and the bottom edges of the arched hood bodies and the ground or the faces of the sintering machine on both sides of the pallet are provided with mutually engaging lateral flanges and grooves, respectively.
4. The mobile circulating flue gas hood on the sintering machine according to claim 3, wherein a fixed position sensor and a mobile position sensor are respectively installed on the faces, facing the track, of the track and the arched hood body, and the installation position of the fixed position sensor corresponds to the installation position of the telescopic vertical air inlet pipe.
5. The mobile flue gas hood for sintering machine of claim 4, wherein the arch-shaped hood body with sealed fit end to end comprises two buckled ladder-shaped edges respectively arranged at two ends of the arch-shaped hood body, and asbestos gaskets are arranged at the edge parts of the two buckled ladder-shaped edges.
6. The mobile circulating flue gas hood on a sintering machine according to claim 1, wherein the driving motor is a servo motor, and the servo motors arranged on the driving rollers at two sides of the arched hood body are synchronously driven.
7. The mobile circulating flue gas hood on the sintering machine according to claim 1, wherein the telescopic vertical gas inlet pipe comprises at least two sleeves which are nested and inserted from small to large, wherein an inner flanging is arranged at one end of the large sleeve, an outer flanging is arranged at one end of the small sleeve, and one end of the inner flanging of the large sleeve and one end of the outer flanging of the small sleeve are matched with each other to form a sealing structure.
8. The mobile circulating flue gas hood on the sintering machine according to claim 7, wherein the lifting traction mechanism comprises a traction motor arranged on an auxiliary support, a roller is arranged on an output shaft of the traction motor, the roller is connected with one end of a traction rope, the other end of the traction rope is connected with a lifting lug on the outer pipe wall of the lowest section of the telescopic vertical gas inlet pipe, and the auxiliary support is connected to the outer wall of the circulating flue gas main flue or arranged on a support frame connected with the ground.
9. The mobile circulating flue gas hood on the sintering machine according to claim 1, wherein an adjusting part for regulating and controlling the flow of flue gas flowing into the telescopic vertical air inlet pipe is arranged on the transverse circulating flue gas main flue at the position of the telescopic vertical air inlet pipe.
10. The mobile circulating flue gas hood on the sintering machine according to claim 9, wherein the adjusting component comprises a conical plug, the conical surface of the conical plug corresponds to the position of the telescopic vertical gas inlet pipe, the large end of the conical plug is connected with one side of a nut through a connecting rod, the other side of the nut is provided with a sliding block in sliding fit with a guide groove, the nut is in threaded fit with a lead screw, one end of the lead screw is connected with a driving shaft of a servo motor, the guide piece provided with the guide groove and the servo motor are installed on the outer wall of the transverse circulating flue gas main flue through an auxiliary support or on a support frame connected with the ground, and the connecting rod penetrates through the pipe wall of the transverse circulating flue gas main flue.
CN202010451948.4A 2020-05-26 2020-05-26 Movable circulating flue gas hood on sintering machine Active CN111595152B (en)

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CN105066700A (en) * 2015-08-10 2015-11-18 中国科学院过程工程研究所 Sealed hot blast cover device
CN110514011A (en) * 2019-09-25 2019-11-29 北京中航泰达环保科技股份有限公司 A kind of smoke impervious cover and the sintering flue gas circulatory system and control method
CN210560559U (en) * 2019-09-28 2020-05-19 云南曲靖钢铁集团凤凰钢铁有限公司 Flue gas trapping device of ladle refining furnace

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201166520Y (en) * 2008-06-01 2008-12-17 江阴市盛凯环保设备有限公司 Intermediate frequency furnace flue gas trapping device
CN202648404U (en) * 2012-04-27 2013-01-02 宝山钢铁股份有限公司 Sealing device for circulating sintering flue gas
CN203687627U (en) * 2014-02-11 2014-07-02 河南太行全利重工股份有限公司 Continuous fluxing and feeding device for medium-frequency furnace
CN105066700A (en) * 2015-08-10 2015-11-18 中国科学院过程工程研究所 Sealed hot blast cover device
CN110514011A (en) * 2019-09-25 2019-11-29 北京中航泰达环保科技股份有限公司 A kind of smoke impervious cover and the sintering flue gas circulatory system and control method
CN210560559U (en) * 2019-09-28 2020-05-19 云南曲靖钢铁集团凤凰钢铁有限公司 Flue gas trapping device of ladle refining furnace

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