CN114705053B - Discharging and cooling device for shaking plate of vertical cooling furnace for sintered ore - Google Patents

Discharging and cooling device for shaking plate of vertical cooling furnace for sintered ore Download PDF

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Publication number
CN114705053B
CN114705053B CN202210169879.7A CN202210169879A CN114705053B CN 114705053 B CN114705053 B CN 114705053B CN 202210169879 A CN202210169879 A CN 202210169879A CN 114705053 B CN114705053 B CN 114705053B
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Prior art keywords
cooling furnace
plate
support
lower support
cooling
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CN114705053A (en
Inventor
彭岩
郭存红
刘治乾
范东燕
张晔
左会峰
张莉
余雷
朱世峰
李雯心
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CITIC Heavy Industries Co Ltd
CITIC Heavy Industry Engineering Technology Co Ltd
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CITIC Heavy Industries Co Ltd
CITIC Heavy Industry Engineering Technology Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/02—Skids or tracks for heavy objects
    • F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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

Abstract

The invention discloses a sinter vertical cooling furnace shaking plate discharging and cooling device, which comprises a cooling furnace body, an upper support, a lower support, a shaking plate, a driving rod, a driving device, a collecting hopper and a control valve, wherein the upper support is arranged on the cooling furnace body; both ends of the upper support and the lower support are fixed on the inner wall of the cooling furnace; an air inlet is formed in the position, corresponding to the lower support, on the side wall of the cooling furnace body; the shaking plate comprises a supporting frame, a material supporting plate and a scraping plate; the support frame is arranged at the lower side of the lower support, the discharge ports between the retainer plate and the lower support are arranged on the support frame in a one-to-one correspondence and parallel mode at intervals, the scraper plates are vertically arranged in the middle of the retainer plate along the length direction of the retainer plate, and the driving devices are arranged at two sides of the outer portion of the cooling furnace body; the aggregate bin is arranged at the lower side of the cooling furnace body, and the control valve is arranged on a discharge port of the aggregate bin. The swinging plate type discharging structure provided by the invention has the advantages that the area of the discharging opening is increased to the maximum extent, the integral flowing of materials is favorably realized, and the phenomenon of central flow is avoided; the invention has simple integral structure, low investment cost and good cooling effect.

Description

Discharging and cooling device for shaking plate of vertical cooling furnace for sintered ore
Technical Field
The invention relates to the technical field of sinter cooling, in particular to a sinter vertical cooling furnace shaking plate discharging and cooling device.
Background
The sintering process in the steel production accounts for about 15% of the total energy consumption, wherein about 40% of the total energy consumption exists in the form of sensible heat of the sintering ore, the sensible heat recovery of the sintering ore is the key direction of energy conservation of steel enterprises, and the air leakage of a sintering ring cooling process and equipment is a fundamental problem which restricts the recovery and utilization of the waste heat of the sintering ore; at present, the process technology and core equipment for efficiently recovering the sensible heat of the sintered ore by replacing a circular cooler with a vertical cooling furnace in the industry are continuously improved, the existing sintered ore cooling process is changed, the utilization efficiency of the waste heat of the sintered ore is improved, the ore return rate is reduced, and the method has very important significance for energy conservation and emission reduction, and the benefit and the competitiveness of iron and steel enterprises are improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a shaking plate discharging and cooling device of a vertical cooling furnace for sinter, and solves the problems of high ore discharging temperature, nonuniform cooling, low smoke quality, serious central flow of materials and the like of the conventional vertical cooling for high-temperature sinter.
The technical scheme adopted by the invention is as follows:
a discharging and cooling device for a shaking plate of a vertical sinter cooling furnace comprises a cooling furnace body, an upper support, a lower support, a shaking plate, a driving rod, a driving device, a collecting hopper and a control valve;
the upper supports and the lower supports are both hollow triangular prism-shaped structures with triangular cross sections, the plurality of lower supports are arranged on the lower side in the cooling furnace at intervals in parallel, and a discharge port is formed in a gap between every two adjacent lower supports; a plurality of upper supports are arranged above the lower support in parallel at intervals corresponding to the positions of the discharge ports, the size of the upper supports is smaller than that of the lower supports, and both ends of the upper supports and both ends of the lower supports are fixed on the inner wall of the cooling furnace; an air inlet is formed in the position, corresponding to the lower support, on the side wall of the cooling furnace body;
the shaking plate comprises a supporting frame, a material supporting plate and a scraping plate; the support frame is arranged at the lower side of the lower support, the discharge ports between the retainer plate and the lower support are arranged on the support frame in a one-to-one correspondence and parallel mode at intervals, the width of the retainer plate is larger than that of the discharge ports between two adjacent lower supports, and the scraper plate is vertically arranged in the middle of the retainer plate along the length direction of the retainer plate;
the driving devices are arranged on two sides of the outside of the cooling furnace body, output shafts of the driving devices are connected with driving rods, the driving rods penetrate through two side walls of the cooling furnace body respectively and are connected with two sides of the supporting frame, the direction of the driving rods is vertical to the length direction of the lower support, and the driving devices drive the shaking plate to horizontally shake in the cooling furnace body;
the aggregate bin is arranged on the lower side of the cooling furnace body, and the control valve is arranged on a discharge port of the aggregate bin.
Specifically, the cross sections of the upper support and the lower support are isosceles triangles with base angles larger than 45 degrees, the reinforcing supports are vertically arranged between the lower support and the upper support in a staggered mode, and the cross sections of the reinforcing supports are triangles the same as the cross sections of the lower support.
More specifically, the inclined planes on the two sides of the upper support, the lower support and the reinforcing support are all provided with wear-resistant layers.
Specifically, both ends of the upper support and the lower support are provided with air supply outlets for supplying air into the hollow cavity.
Specifically, the rocking plate is arranged to be round or square according to the shape of the cooling furnace, and is arranged to be integral or split according to the size of the cross section of the cooling furnace body; and a wear-resistant material layer is arranged on the contact surface of the shaking plate and the material.
Specifically, the rocking plate is suspended on the lower side of the lower support through a plurality of connecting assemblies, each connecting assembly comprises a stud and a spherical nut, one end of each stud is connected with the bottom plate of each lower support through the spherical nut, and the other end of each stud is connected with the support frame through the spherical nut; the spherical nut enables the double-end screw connected with the lower support to swing freely within a certain angle, and reinforcing plates are arranged between the spherical nut and the bottom plate and the supporting frame of the lower support.
Specifically, the supporting frame is arranged on the lower side of the lower support through a moving assembly, and the moving assembly comprises a bracket, a guide rail and a travelling wheel; the support interval is fixed on the collecting hopper inner wall, and a plurality of guide rails set up in the support upper end along the direction of perpendicular to under bracing, and the walking wheel evenly sets up at the braced frame downside with the guide rail is corresponding, and the walking wheel is located the guide rail, and the actuating lever drives the walking wheel along guide rail reciprocating motion.
Specifically, a backing plate is arranged between the retainer plate and the support frame.
Specifically, the inner wall of the aggregate bin is provided with a wear-resistant layer.
Specifically, the driving mechanism is a motor or a hydraulic cylinder.
Due to the adoption of the technical scheme, the invention has the following advantages:
the rocking plate type discharging structure provided by the invention has the advantages that the area of the discharging opening is increased to the maximum extent, about 30% of the cross-sectional area of the large cavity cooling furnace is a forced discharging opening, the integral flowing of materials is favorably realized, and the central flow phenomenon is avoided; the swinging plate has small discharging swinging amplitude, small abrasion, higher equipment reliability and less maintenance and overhaul amount; the discharge port is also a circulating inlet of cooling air, so that the cooling air can be distributed more uniformly, and the heat exchange is more sufficient; the upper support and the lower support bear the gravity of all materials in the cooling furnace, the pressure of the materials on the rocking plate is small, the required driving power is small, the self-consumption electric quantity is small, and cooling air introduced into hollow cavities of the upper support and the lower support further optimizes the air distribution uniformity and improves the cooling efficiency of the sinter; the invention has simple integral structure, low investment cost and good cooling effect.
Drawings
Fig. 1 is a schematic view of the overall internal structure of the present invention using a connecting assembly.
Fig. 2 is a schematic view in another direction of fig. 1.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Fig. 4 is a schematic view of the overall internal structure of the present invention employing a moving assembly.
Fig. 5 is a schematic view in another direction of fig. 3.
Fig. 6 is a partial structural view of the wobble plate of the present invention.
FIG. 7 is a schematic view of a portion of a support frame of the present invention, for example, a rectangular cooling furnace.
FIG. 8 is a schematic top view of a coupling assembly for a portion of a sway plate of a rectangular cooling furnace according to the present invention.
In the figure: 1-cooling furnace body, 11-air inlet, 2-upper support, 3-lower support, 4-shaking plate, 41-supporting frame, 42-material supporting plate, 43-scraping plate, 44-backing plate, 5-driving rod, 6-driving device, 7-material collecting hopper, 8-control valve, 9-connecting assembly, 91-double-end stud, 92-spherical nut, 93-reinforcing plate, 10-moving assembly, 101-support, 102-guide rail and 103-walking wheel.
The arrows in the figure indicate the direction of flow of the cooling wind.
Detailed Description
The invention is further explained below with reference to the drawings and examples, without thereby limiting the scope of protection of the invention, which is disclosed with the aim of protecting all technical modifications within the scope of the invention.
The shaking plate discharging and cooling device for the vertical sinter cooling furnace shown in the attached drawing comprises a cooling furnace body 1, an upper support 2, a lower support 3, a shaking plate 4, a driving rod 5, a driving device 6, a collecting hopper 7 and a control valve 8.
The upper support 2 and the lower support 3 are both hollow triangular prism-shaped structures with cross sections of isosceles triangles with base angles larger than 45 degrees, reinforcing supports are vertically arranged between the lower support 3 and the upper support 2 in a staggered manner, and the cross sections of the reinforcing supports are triangles the same as the cross sections of the lower support 3; the lower supports 3 are arranged on the lower side in the cooling furnace at intervals in parallel, and a discharge hole is formed in a gap between every two adjacent lower supports 3; the upper supports 2 and the discharge ports are arranged above the lower support 3 in parallel at intervals, the size of each upper support 2 is smaller than that of the corresponding lower support 3, two ends of each upper support 2 and two ends of each lower support 3 are fixed on the inner wall of the cooling furnace, two ends of each upper support 2 and two ends of each lower support 3 are provided with air supply outlets for supplying air into the hollow cavity, and two side inclined planes of each upper support 2, each lower support 3 and each reinforcing support are provided with wear-resistant layers; an air inlet 11 is arranged on the side wall of the cooling furnace body 1 corresponding to the lower support 3.
The shaking plate 4 is arranged to be round or square according to the shape of the cooling furnace, and is arranged to be integral or split according to the size of the cross section of the cooling furnace body 1; a wear-resistant material layer is arranged on the contact surface of the shaking plate 4 and the material; as shown in fig. 6 to 8, the rocking plate 4 includes a support frame 41, a retainer plate 42, and a scraper 43; the supporting frame 41 is arranged at the lower side of the lower support 3, the material outlets between the retainer plate 42 and the lower support 3 are arranged on the supporting frame 41 in parallel at intervals in a one-to-one correspondence manner, and a backing plate 44 is also arranged between the retainer plate 42 and the supporting frame 41; the width of the retainer plate 42 is larger than the width of the discharge hole between two adjacent lower supports 3, and the scraper 43 is vertically arranged in the middle of the retainer plate 42 along the length direction of the retainer plate 42.
The driving device 6 is arranged on two sides of the outside of the cooling furnace body 1, the driving device 6 is a motor, the output shaft of the motor is connected with the driving rod 5, the driving rod 5 penetrates through two side walls of the cooling furnace body 1 respectively and is connected with two sides of the supporting frame 41, the direction of the driving rod 5 is perpendicular to the length direction of the lower support 3, and the driving device 6 drives the shaking plate 4 to horizontally shake in the cooling furnace body 1.
The collecting hopper 7 is arranged at the lower side of the cooling furnace body 1, and the inner wall of the collecting hopper 7 is provided with a wear-resistant layer; the control valve 8 is arranged on the discharge opening of the collecting hopper 7.
As shown in fig. 1-3, the wobble plate 4 is suspended at the lower side of the lower support 3 through a plurality of connecting assemblies 9, each connecting assembly 9 includes a stud 91 and a spherical nut 92, one end of each stud 91 is connected with the bottom plate of each lower support 3 through the spherical nut 92, and the other end is connected with the support frame 41 through the spherical nut 92; the spherical nut 92 enables the double-threaded screw connected with the lower support 3 to swing freely within a certain angle, and a reinforcing plate 93 is arranged between the spherical nut 92 and the bottom plate of the lower support 3 and the support frame 41.
As shown in fig. 4-5, the supporting frame 41 is disposed at the lower side of the lower support 3 by a moving assembly 10, and the moving assembly 10 includes a bracket 101, a guide rail 102 and a traveling wheel 103; the support 101 is fixed on the inner wall of the collecting hopper 7 at intervals, the guide rails 102 are arranged at the upper end of the support 101 along the direction vertical to the lower support 3, the walking wheels 103 are uniformly arranged at the lower side of the support frame 41 corresponding to the guide rails 102, the walking wheels 103 are positioned on the guide rails 102, and the driving rod 5 drives the walking wheels 103 to reciprocate along the guide rails 102.
During operation, after the sintered ore enters the cooling furnace, the upper support 2 and the lower support 3 which are fixed in the cooling furnace bear the gravity pressure of the sintered ore in the furnace, the sintered ore at the discharge port is accumulated on the material supporting plate 42 to form natural accumulation, the material is locked and does not flow downwards, and the shaking plate 4 is prevented from bearing the overlarge gravity of the sintered ore in the furnace; and the heat exchange cooling air is blown in from the lower air inlet 11, and fully exchanges heat with the sintered ore from top to bottom upwards through each discharge hole between the lower supports 3, and then enters the waste heat recovery system to split the flow direction of the cooling gas in the furnace; cooling air is introduced into hollow cavities of the upper support 2 and the lower support 3 through an air supply outlet to assist in cooling the sinter; the shaking plate 4 is hung on the lower side of the lower support 3 through a connecting assembly 9, or is arranged on the lower side of the lower support 3 through a moving assembly 10; when discharging is needed, the driving device 6 works to drive the driving rod 5 connected with the supporting frame 41, the driving rod 5 drives the shaking plate 4 to shake left and right with the connecting component 9 as a fulcrum or drive the shaking plate 4 to move left and right through reciprocating movement of the walking wheels 103 on the guide rails 102, after the natural stacking state of materials is damaged, the sintered ore between the material supporting plate 42 and the discharge port is stirred left and right by the scraping plate 43 and is uniformly discharged from the two sides of the material supporting plate 42, the discharged sintered ore enters the collecting hopper 7, the control valve 8 is an air locking valve or a discharging control valve 8, the control valve 8 prevents cooling air from being discharged from the lower part and controls the discharged ore amount, the sintering with a certain material layer height in the collecting hopper 7 is ensured to be always kept, the discharged ore amount is matched with the discharged amount of the shaking plate 4, and the control valve 8 rolls down to the cold ore conveying system after controlling the flow amount.
The present invention is not described in detail in the prior art.
The embodiments selected for the purpose of disclosing the invention, are presently considered to be suitable, it being understood, however, that the invention is intended to cover all variations and modifications of the embodiments which fall within the spirit and scope of the invention.

Claims (10)

1. The utility model provides a vertical cooling furnace of sinter shake board row material cooling device which characterized in that: comprises a cooling furnace body, an upper support, a lower support, a shaking plate, a driving rod, a driving device, a material collecting hopper and a control valve;
the upper support and the lower supports are both hollow triangular prism-shaped structures with triangular cross sections, the plurality of lower supports are arranged on the lower side in the cooling furnace at intervals in parallel, and a discharge port is formed in a gap between every two adjacent lower supports; a plurality of upper supports are arranged above the lower support in parallel at intervals corresponding to the positions of the discharge ports, the size of the upper supports is smaller than that of the lower supports, and both ends of the upper supports and both ends of the lower supports are fixed on the inner wall of the cooling furnace; an air inlet is formed in the position, corresponding to the lower support, on the side wall of the cooling furnace body;
the shaking plate comprises a supporting frame, a material supporting plate and a scraping plate; the support frame is arranged at the lower side of the lower support, the discharge ports between the retainer plate and the lower support are arranged on the support frame in a one-to-one correspondence and parallel mode at intervals, the width of the retainer plate is larger than that of the discharge ports between two adjacent lower supports, and the scraper plate is vertically arranged in the middle of the retainer plate along the length direction of the retainer plate;
the driving devices are arranged on two sides of the outside of the cooling furnace body, output shafts of the driving devices are connected with driving rods, the driving rods respectively penetrate through two side walls of the cooling furnace body and are connected with two sides of the supporting frame, the direction of the driving rods is vertical to the length direction of the lower support, and the driving devices drive the shaking plates to horizontally shake in the cooling furnace body;
the aggregate bin is arranged on the lower side of the cooling furnace body, and the control valve is arranged on a discharge port of the aggregate bin.
2. The sinter ore vertical cooling furnace slosh plate discharging cooling device of claim 1, wherein: the cross sections of the upper support and the lower support are isosceles triangles with base angles larger than 45 degrees, the reinforced supports are vertically arranged between the lower support and the upper support in a staggered mode, and the cross sections of the reinforced supports are triangles the same as the cross sections of the lower support.
3. The sinter ore vertical cooling furnace slosh plate discharging cooling device of claim 2, wherein: and the inclined planes at the two sides of the upper support, the lower support and the reinforcing support are all provided with wear-resistant layers.
4. The sinter vertical cooling furnace slosh plate discharging and cooling device as claimed in claim 1, wherein: and air supply outlets for supplying air into the hollow cavity are arranged at two ends of the upper support and the lower support.
5. The sinter vertical cooling furnace slosh plate discharging and cooling device as claimed in claim 1, wherein: the rocking plate is round or square according to the shape of the cooling furnace, and is integrated or split according to the size of the cross section of the cooling furnace body; and a wear-resistant material layer is arranged on the contact surface of the shaking plate and the material.
6. The sinter vertical cooling furnace slosh plate discharging and cooling device as claimed in claim 1, wherein: the rocking plate is suspended on the lower side of the lower support through a plurality of connecting assemblies, each connecting assembly comprises a double-end stud and a spherical nut, one end of each double-end stud is connected with the bottom plate of each lower support through the spherical nut, and the other end of each double-end stud is connected with the support frame through the spherical nut; the spherical nut enables the double-end screw connected with the lower support to swing freely within a certain angle, and reinforcing plates are arranged between the spherical nut and the bottom plate and the supporting frame of the lower support.
7. The sinter vertical cooling furnace slosh plate discharging and cooling device as claimed in claim 1, wherein: the supporting frame is arranged on the lower side of the lower support through a moving assembly, and the moving assembly comprises a bracket, a guide rail and a travelling wheel; the support interval is fixed on the collecting hopper inner wall, and a plurality of guide rails set up in the support upper end along the direction of perpendicular to under bracing, and the walking wheel evenly sets up at the braced frame downside with the guide rail is corresponding, and the walking wheel is located the guide rail, and the actuating lever drives the walking wheel along guide rail reciprocating motion.
8. The sinter vertical cooling furnace slosh plate discharging and cooling device as claimed in claim 1, wherein: and a backing plate is arranged between the retainer plate and the support frame.
9. The sinter vertical cooling furnace slosh plate discharging and cooling device as claimed in claim 1, wherein: and the inner wall of the collecting hopper is provided with a wear-resistant layer.
10. The sinter ore vertical cooling furnace slosh plate discharging cooling device of claim 1, wherein: the driving device is a motor or a hydraulic cylinder.
CN202210169879.7A 2022-02-24 2022-02-24 Discharging and cooling device for shaking plate of vertical cooling furnace for sintered ore Active CN114705053B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1439285A (en) * 1972-08-24 1976-06-16 Buehler Ag Geb Shaft coolers
DE4132475A1 (en) * 1991-09-30 1993-04-01 Kloeckner Humboldt Deutz Ag Moving cooler grids - using pendulum swing frame supported by linkages from housing base for required movement and positioning within housing width
CN103234359A (en) * 2013-04-15 2013-08-07 中信重工机械股份有限公司 Sintering furnace type cooling device
WO2018121733A1 (en) * 2016-12-29 2018-07-05 Primetals Technologies Austria GmbH Cooling of bulk material
CN109988913A (en) * 2018-01-02 2019-07-09 中冶长天国际工程有限责任公司 A kind of vertical cooling machine and cooling means with the board-like discharge device of movement
CN110678711A (en) * 2016-12-29 2020-01-10 首要金属科技奥地利有限责任公司 Cooling of bulk material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1439285A (en) * 1972-08-24 1976-06-16 Buehler Ag Geb Shaft coolers
DE4132475A1 (en) * 1991-09-30 1993-04-01 Kloeckner Humboldt Deutz Ag Moving cooler grids - using pendulum swing frame supported by linkages from housing base for required movement and positioning within housing width
CN103234359A (en) * 2013-04-15 2013-08-07 中信重工机械股份有限公司 Sintering furnace type cooling device
WO2018121733A1 (en) * 2016-12-29 2018-07-05 Primetals Technologies Austria GmbH Cooling of bulk material
CN110678711A (en) * 2016-12-29 2020-01-10 首要金属科技奥地利有限责任公司 Cooling of bulk material
CN109988913A (en) * 2018-01-02 2019-07-09 中冶长天国际工程有限责任公司 A kind of vertical cooling machine and cooling means with the board-like discharge device of movement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
烧结矿竖冷炉内物料的偏析;孙俊杰等;《钢铁》;20200315(第03期);全文 *

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