CN111485047B - Reduction kiln equipment for directly reducing iron - Google Patents
Reduction kiln equipment for directly reducing iron Download PDFInfo
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- CN111485047B CN111485047B CN202010546020.4A CN202010546020A CN111485047B CN 111485047 B CN111485047 B CN 111485047B CN 202010546020 A CN202010546020 A CN 202010546020A CN 111485047 B CN111485047 B CN 111485047B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
Abstract
The invention discloses reduction kiln equipment for directly reducing iron, which comprises a kiln and first support plates, wherein the first support plates are fixedly connected to the left side and the right side of the kiln, and a gas transmission device is arranged in the kiln. This reduction kiln equipment of direct reduced iron, through electric putter, first gas-supply pipe, the second gas-supply pipe, mutually support between gear and the baffle isotructure, the baffle restricts the flow in the nozzle, thereby realize the purpose of regulating flow, through first semi-gear, the second semi-gear, including a motor, a controller, and a cover plate, mutually support between tooth dental lamina and the fan isotructure, can make the motor drive first helical gear pole through second helical gear pole and rotate, first helical gear pole drives tooth dental lamina through the second gear and removes, tooth dental lamina drives the fan and removes, thereby cool down through the fan to first gas-supply pipe and second gas-supply pipe and handle, so just increased the life of first gas-supply pipe and second gas-supply pipe.
Description
Technical Field
The invention relates to the technical field of reduction furnaces, in particular to reduction kiln equipment for directly reducing iron.
Background
The direct reduced iron is a low-carbon porous substance formed by low-temperature reduction of fine iron powder or iron oxide in a furnace, has stable chemical components and low impurity content, is mainly used as a raw material for electric furnace steelmaking and also can be used as a coolant for converter steelmaking, if the direct reduced iron is subjected to secondary reduction and can also be used for powder metallurgy, and in an iron-making electric furnace, the reduction reaction of iron ore basically adopts a carbon direct reduction mode, so the reduction work finished in the direct reduced iron can be completely used for replacing the reduction work amount in an iron-making furnace, thereby the effect better than that of a high furnace can be obtained, while in the prior art, most of the direct reduced iron is produced by adopting the traditional coal-based tunnel kiln pot-type method, the method has high energy consumption, long reduction time and high production and operation cost, and the prior art does not control gas, can not make the gas be fully combusted, and meanwhile, a gas transmission pipeline in the prior art can be heated after long-time use, if not treated, can accelerate the degradation of the gas transmission pipeline.
Disclosure of Invention
The invention aims to provide reduction kiln equipment for directly reducing iron, which aims to solve the problems of high energy consumption, long reduction time and high production and operation cost of the conventional pot-type method for producing the directly reduced iron by using a coal-based tunnel kiln in the prior art, which is proposed in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the reduction kiln equipment for directly reducing iron comprises a kiln and first support plates, wherein the first support plates are fixedly connected to the left side and the right side of the kiln, and a gas transmission device is arranged in the kiln;
the gas transmission device comprises a cellar vehicle, a material box, a burner, a first gas transmission pipe and a second gas transmission pipe;
the inner wall clearance fit of cellar for storing things car and cellar for storing things stove, the upper surface rigid coupling of cellar for storing things car has the workbin, the outer wall of workbin and the inner wall clearance fit of cellar for storing things stove, the top of workbin is equipped with a plurality of nozzles, the inboard outer wall of nozzle links to each other with the inside of cellar for storing things car is fixed, the outside and the top of nozzle rigid coupling respectively have first gas-supply pipe and second gas-supply pipe.
Preferably, the lower surfaces of the left burner and the right burner are on the same horizontal line.
Preferably, the left side and the right side of the kiln furnace are provided with adjusting devices;
the adjusting device comprises a transverse plate, a vertical plate, an electric push rod, a trapezoidal tooth plate, a gear and a baffle plate;
control the inboard and the fixed linking to each other of kiln furnace of diaphragm, the outside rigid coupling of diaphragm has the riser, the diaphragm links to each other with first gas-supply pipe and second gas-supply pipe are fixed respectively with the inside of riser, the below of riser is equipped with electric putter, electric putter's lower surface links to each other with first support is fixed, electric putter's push rod department rigid coupling has trapezoidal tooth dental lamina, the lower surface and the first support laminating of trapezoidal tooth dental lamina are laminated mutually, the top meshing of trapezoidal tooth dental lamina is connected with the gear, the gear rotates through the pivot and is connected with the baffle, the top outer wall of baffle and the opening part inner wall clearance fit of nozzle.
Preferably, the meshing ratio of the trapezoidal tooth plate to the gear is 1: 1.
preferably, the transverse plate is perpendicular to the kiln furnace.
Preferably, a cooling device is arranged above the first support plate;
the cooling device comprises a second support plate, a first half gear, a second half gear, a first bevel gear rod, a second bevel gear rod, a motor, a concave plate, a tooth plate, a fan and a spring;
the lower surface of the second support plate is fixedly connected with the first support plate, the inner side of the second support plate is respectively and vertically rotatably connected with a first half gear and a second half gear through a rotating shaft, the lower part of the second half gear is rotatably connected with a first bevel gear rod through a belt, the first bevel gear rod is rotatably connected with the second support plate, the lower part of the first bevel gear rod is connected with a second bevel gear rod in a meshing manner, the lower surface of the second bevel gear rod is fixedly connected with a motor, the outer wall of the lower part of the motor is fixedly connected with the first support plate, the inner side of the motor is provided with a concave plate, the lower surface of the concave plate is fixedly connected with the first support plate, a tooth plate and a spring are respectively arranged at the upper part and the lower part of the groove of the concave plate, the outer walls of the tooth plate and the spring are in clearance fit with the inner wall of the concave plate, and the upper surface and the lower surface of the spring are respectively and fixedly connected with the tooth plate and the first support plate, the tooth plate is meshed with the first half gear and the second half gear, and a fan is fixedly connected to the upper portion of the inner side of the tooth plate.
Preferably, the midpoint of the output shaft of the motor and the midpoint of the second helical gear rod are on the same vertical line.
Preferably, the concave plate and the tooth plate form a sliding structure.
Compared with the prior art, the invention has the beneficial effects that:
this reduction kiln equipment of direct reduced iron through mutually supporting between electric putter, trapezoidal tooth dental lamina, first gas-supply pipe, second gas-supply pipe, gear and the baffle isotructure, can drive trapezoidal tooth dental lamina through electric putter and remove, and trapezoidal tooth dental lamina drives the baffle through the gear and removes, and the baffle restricts the flow in the nozzle to the realization adjusts the mesh of flow.
This reduction kiln equipment of direct reduced iron through mutually supporting between first gas-supply pipe, second gas-supply pipe, cellar for storing things car, workbin and cellar for storing things stove isotructure, can make the reduced iron in the workbin fully react in cellar for storing things stove to practice thrift the cost, improved reaction rate.
This reduction kiln equipment of direct reduced iron, through first semi-gear, second semi-gear, first helical gear pole, including a motor, an end cap, a controller, and a cover plate, mutually support between tooth dental lamina and the fan isotructure, can make the motor drive first helical gear pole through second helical gear pole and rotate, first helical gear pole drives the tooth dental lamina through the second gear and removes, the tooth dental lamina drives the fan and removes, thereby cool down the processing to first gas-supply pipe and second gas-supply pipe through the fan, realize the cooling function.
The reduction kiln equipment for directly reducing iron prolongs the service life of the first gas transmission pipe and the second gas transmission pipe.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the transverse plate, the vertical plate and the second air delivery pipe in FIG. 1;
FIG. 3 is a schematic structural view of the trapezoidal toothed plate, the electric push rod and the first air delivery pipe in FIG. 1;
FIG. 4 is a schematic view of the structure of the gear, the baffle and the burner in FIG. 1;
FIG. 5 is a schematic view of the first half gear, the second half gear and the fan of FIG. 1;
fig. 6 is a schematic structural view of the motor, the second bevel gear rod and the tooth plate in fig. 1.
In the figure: 1. the kiln comprises a kiln furnace, 2, a first support plate, 3, an air conveying device, 301, a kiln car, 302, a bin, 303, a burner, 304, a first air conveying pipe, 305, a second air conveying pipe, 4, an adjusting device, 401, a transverse plate, 402, a vertical plate, 403, an electric push rod, 404, a trapezoidal toothed plate, 405, a gear, 406, a baffle, 5, a cooling device, 501, a second support plate, 502, a first half gear, 503, a second half gear, 504, a first bevel gear rod, 505, a second bevel gear rod, 506, a motor, 507, a concave plate, 508, a toothed plate, 509, a fan, 510 and a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution:
example 1
A reduction kiln device for directly reducing iron comprises a kiln furnace 1 and a first supporting plate 2, the left side and the right side of the kiln furnace 1 are fixedly connected with the first supporting plate 2, a gas transmission device 3 is arranged in the kiln furnace 1, the gas transmission device 3 comprises a kiln car 301, a bin 302, a burner 303, a first gas transmission pipe 304 and a second gas transmission pipe 305, the kiln car 301 is in clearance fit with the inner wall of the kiln furnace 1, the kiln car 301 can move at the kiln furnace 1 and can drive the bin 302 to move through the kiln car 301, the upper surface of the kiln car 301 is fixedly connected with the bin 302, reduced iron is placed in the bin 302, the outer wall of the bin 302 is in clearance fit with the inner wall of the kiln furnace 1, 2 burner 303 are arranged above the bin 302, gas and combustion-supporting air can be sent into the kiln furnace 1 through the burner 303, the inner side outer wall of the burner 303 is fixedly connected with the inside of the kiln car 301, an opening is arranged below the burner 303, the outer side and the upper side of the burner 303 are respectively fixedly connected with the first gas transmission pipe 304 and the second gas transmission pipe 305, the first air conveying pipe 304 and the second air conveying pipe 305 can convey gas and combustion-supporting air respectively, and the lower surfaces of the left burner 303 and the right burner 303 are on the same horizontal line.
Example 2
As an optional situation, referring to fig. 1-4, the reduction kiln equipment for direct reduced iron, the adjustment device 4 is installed on the left and right sides of the kiln 1, the adjustment device 4 includes a horizontal plate 401, a vertical plate 402, an electric push rod 403, a trapezoidal tooth plate 404, a gear 405 and a baffle 406, the inner sides of the horizontal plate 401 and the horizontal plate 401 are fixedly connected with the kiln 1, the outer side of the horizontal plate 401 is fixedly connected with the vertical plate 402, the inner parts of the horizontal plate 401 and the vertical plate 402 are respectively fixedly connected with the first air pipe 304 and the second air pipe 305, the horizontal plate 401 and the vertical plate 402 can fix the first air pipe 304 and the second air pipe 305, the electric push rod 403 is arranged below the vertical plate 402, the model of the electric push rod 403 is XTL-50, the lower surface of the electric push rod 403 is fixedly connected with the first supporting plate 2, the push rod of the electric push rod 403 is fixedly connected with the trapezoidal tooth plate 404, the electric push rod 403 can drive the system to move the tooth plate 404, the lower surface and the 2 laminating of first support plates of trapezoidal tooth dental lamina 404, the top meshing of trapezoidal tooth dental lamina 404 is connected with gear 405, trapezoidal tooth dental lamina 404 can drive gear 405 and rotate, thereby can drive it and remove, gear 405 rotates through the pivot and is connected with baffle 406, the rubber pad is installed to the top outer wall of baffle 406, the outer wall of rubber pad and the opening part outer wall rigid coupling of nozzle 303, can play sealed effect through the rubber pad, the top outer wall of baffle 406 and the opening part inner wall clearance fit of nozzle 303, can adjust the flow in the nozzle 303 through baffle 406, trapezoidal tooth dental lamina 404 is 1 with the meshing ratio of gear 405: 1, the horizontal plate 401 is perpendicular to the kiln 1.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
Example 3
As an optional case, referring to fig. 1, 5 and 6, in the direct reduced iron reduction kiln apparatus, a temperature reduction device 5 is installed above a first support plate 2, the temperature reduction device 5 includes a second support plate 501, a first half gear 502, a second half gear 503, a first bevel gear rod 504, a second bevel gear rod 505, a motor 506, a concave plate 507, a tooth plate 508, a fan 509 and a spring 510, a lower surface of the second support plate 501 is fixedly connected with the first support plate 2, a first half gear 502 and a second half gear 503 are respectively rotatably connected to an upper side and a lower side of an inner side of the second support plate 501 through a rotating shaft, the first half gear 502 and the second half gear 503 can rotate at the second support plate 501 through the rotating shaft, the first bevel gear rod 504 is rotatably connected to a lower side of the second half gear 503 through a belt, the first bevel gear rod 504 can drive the second half gear 503 to rotate through the belt, the first bevel gear rod 504 is rotatably connected to the second support plate 501, a second bevel gear rod 505 is engaged and connected below the first bevel gear rod 504, the second bevel gear rod 505 can drive the first bevel gear rod 504 to rotate, a motor 506 is fixedly connected to the lower surface of the second bevel gear rod 505, the motor 506 is of a BLD-09 type, an output shaft of the motor 506 can drive the second bevel gear rod 505 to rotate, the outer wall of the lower portion of the motor 506 is fixedly connected with the first supporting plate 2, a concave plate 507 is arranged on the inner side of the motor 506, the lower surface of the concave plate 507 is fixedly connected with the first supporting plate 2, a tooth plate 508 and a spring 510 are respectively installed at the upper portion and the lower portion of the groove of the concave plate 507, the outer walls of the tooth plate 508 and the spring 510 are in clearance fit with the inner wall of the concave plate 507, the tooth plate 508 can move at the groove of the concave plate 507, the upper portion and the lower portion of the spring 510 are respectively fixedly connected with the tooth plate 508 and the first supporting plate 2, the tooth plate 508 is engaged with the first half gear 502 and the second half gear 503, the second half gear 503 can drive the toothed plate 508 to move, a fan 509 is fixedly connected to the upper portion of the inner side of the toothed plate 508, the model of the fan 509 is PF150-2, the fan 509 can cool the first air conveying pipe 304 and the second air conveying pipe 305 in a heat dissipation manner, the midpoint of the output shaft of the motor 506 and the midpoint of the second inclined toothed rod 505 are on the same vertical line, and the concave plate 507 and the toothed plate 508 form a sliding structure.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
Example 4
A using method of reducing kiln equipment for direct reduced iron comprises the steps that when an operator needs to use the reducing kiln equipment for direct reduced iron, the operator firstly pours the reduced iron into a material box 302, pushes a kiln car 301, sends the kiln car 301 into a kiln furnace 1, sends gas and combustion-supporting air into the kiln furnace 1 through a first gas pipe 304 and a second gas pipe 305, ignites the gas, heats the reduced iron through heat generated by the gas, switches on an external power supply of an electric push rod 403, starts the electric push rod 403, drives a trapezoidal toothed plate 404 to move through the electric push rod 403, the trapezoidal toothed plate 404 drives a gear 405 to rotate, meanwhile drives a baffle 406 to move through the gear 405, the baffle 406 limits ventilation flow inside a burner 303, and therefore the purpose of regulating the flow is achieved, and the gas in the kiln furnace 1 is combusted more fully, the external power supply of the motor 506 and the fan 509 is switched on, the motor 506 and the fan 509 are started, the output shaft of the motor 506 drives the second bevel gear rod 505 to rotate, the second bevel gear rod 505 drives the first bevel gear rod 504 to rotate, the first bevel gear rod 504 drives the second half gear 503 to rotate through a belt, the second half gear 503 drives the tooth plate 508 to move, the tooth plate 508 drives the first half gear 502 to rotate, meanwhile, the tooth plate 508 drives the fan 509 to move, the tooth plate 508 stretches the spring 510, when teeth of the second half gear 503 rotate over the tooth plate 508, the tooth plate 508 resets through self weight and elastic performance of the spring 510, thereby driving the fan 509 to cool the first air conveying pipe 304 and the second air conveying pipe, and the purpose of prolonging the service life of the first air conveying pipe 304 and the second air conveying pipe 305 is achieved.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a reduction kiln equipment of direct reduction iron, includes kiln (1) and first extension board (2), the left and right sides rigid coupling of kiln (1) has first extension board (2), its characterized in that: a gas transmission device (3) is arranged in the kiln furnace (1);
the gas transmission device (3) comprises a cellar car (301), a bin (302), a burner (303), a first gas transmission pipe (304) and a second gas transmission pipe (305);
the kiln car (301) is in clearance fit with the inner wall of the kiln (1), a bin (302) is fixedly connected to the upper surface of the kiln car (301), the outer wall of the bin (302) is in clearance fit with the inner wall of the kiln (1), a plurality of burners (303) are arranged above the bin (302), the outer wall of the inner side of each burner (303) is fixedly connected with the inside of the kiln car (301), and the outer side and the upper side of each burner (303) are fixedly connected with a first air conveying pipe (304) and a second air conveying pipe (305) respectively; the lower surfaces of the left burner (303) and the right burner (303) are on the same horizontal line; the left side and the right side of the kiln furnace (1) are provided with adjusting devices (4);
the adjusting device (4) comprises a transverse plate (401), a vertical plate (402), an electric push rod (403), a trapezoidal tooth toothed plate (404), a gear (405) and a baffle (406);
the inner side of the left transverse plate (401) and the inner side of the right transverse plate (401) are fixedly connected with the kiln furnace (1), the outer side of the transverse plate (401) is fixedly connected with a vertical plate (402), the inner parts of the transverse plate (401) and the vertical plate (402) are respectively fixedly connected with a first gas conveying pipe (304) and a second gas conveying pipe (305), an electric push rod (403) is arranged below the vertical plate (402), the lower surface of the electric push rod (403) is fixedly connected with a first support plate (2), a trapezoidal tooth plate (404) is fixedly connected at the push rod of the electric push rod (403), the lower surface of the trapezoidal tooth plate (404) is attached to the first support plate (2), a gear (405) is meshed and connected to the upper part of the trapezoidal tooth plate (404), the gear (405) is rotatably connected with a baffle (406) through a rotating shaft, and the upper outer wall of the baffle (406) is in clearance fit with the inner wall of an opening of the burner nozzle (303); a cooling device (5) is arranged above the first support plate (2);
the cooling device (5) comprises a second support plate (501), a first half gear (502), a second half gear (503), a first bevel gear rod (504), a second bevel gear rod (505), a motor (506), a concave plate (507), a tooth plate (508), a fan (509) and a spring (510);
the lower surface of the second support plate (501) is fixedly connected with the first support plate (2), the upper side and the lower side of the inner side of the second support plate (501) are respectively and rotatably connected with a first half gear (502) and a second half gear (503) through a rotating shaft, the lower side of the second half gear (503) is rotatably connected with a first bevel gear rod (504) through a belt, the first bevel gear rod (504) is rotatably connected with the second support plate (501), the lower side of the first bevel gear rod (504) is connected with a second bevel gear rod (505) in a meshing manner, the lower surface of the second bevel gear rod (505) is fixedly connected with a motor (506), the outer wall of the lower side of the motor (506) is fixedly connected with the first support plate (2), the inner side of the motor (506) is provided with a concave plate (507), the lower surface of the concave plate (507) is fixedly connected with the first support plate (2), a tooth plate (508) and a spring (510) are respectively arranged at the upper side and the lower side of a groove of the concave plate (507), the outer walls of the toothed plate (508) and the spring (510) are in clearance fit with the inner wall of the concave plate (507), the upper surface and the lower surface of the spring (510) are fixedly connected with the toothed plate (508) and the first support plate (2) respectively, the toothed plate (508) is meshed with the first half gear (502) and the second half gear (503), and a fan (509) is fixedly connected above the inner side of the toothed plate (508); the middle point of the output shaft of the motor (506) and the middle point of the second bevel gear rod (505) are on the same vertical line, and the concave plate (507) and the tooth plate (508) form a sliding structure.
2. A reducing kiln plant for direct reduced iron according to claim 1, characterized in that: the meshing ratio of the trapezoidal tooth plate (404) to the gear (405) is 1: 1.
3. a reducing kiln plant for direct reduced iron according to claim 1, characterized in that: the transverse plate (401) is perpendicular to the kiln furnace (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010546020.4A CN111485047B (en) | 2020-06-16 | 2020-06-16 | Reduction kiln equipment for directly reducing iron |
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| CN202010546020.4A CN111485047B (en) | 2020-06-16 | 2020-06-16 | Reduction kiln equipment for directly reducing iron |
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| CN111485047A CN111485047A (en) | 2020-08-04 |
| CN111485047B true CN111485047B (en) | 2022-01-28 |
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| JPS58207307A (en) * | 1982-05-27 | 1983-12-02 | Kawasaki Steel Corp | Production of sponge iron |
| CN201762357U (en) * | 2010-09-06 | 2011-03-16 | 攀钢集团有限公司 | Reduction roasting device |
| CN202786298U (en) * | 2012-04-16 | 2013-03-13 | 沈阳博联特熔融还原科技有限公司 | Reduction furnace equipment capable of reducing iron directly |
| CN104017928A (en) * | 2014-06-06 | 2014-09-03 | 中冶南方工程技术有限公司 | Intermittent muffle reduction ironmaking process |
| CN207760373U (en) * | 2017-12-19 | 2018-08-24 | 朱琳琳 | A kind of reduction kiln device of direct reduced iron |
| CN108990371B (en) * | 2018-07-04 | 2020-07-21 | 芜湖文青机械设备设计有限公司 | Case heat dissipation device for new energy automobile |
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Effective date of registration: 20220112 Address after: 454000 industrial cluster area, Boai County, Jiaozuo City, Henan Province (No. 688, Guangxing Road) Applicant after: JIAOZUO JINXIN HENGTUO ADVANCED MATERIALS CO.,LTD. Address before: No. 58, Yanta Road, Xi'an City, Shaanxi Province, 710000 Applicant before: Wang Dongliang |
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