CN203307366U - Continuous hot conveying and charging device for shaft furnace and electric arc furnace reduced iron - Google Patents
Continuous hot conveying and charging device for shaft furnace and electric arc furnace reduced iron Download PDFInfo
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- CN203307366U CN203307366U CN2013202154946U CN201320215494U CN203307366U CN 203307366 U CN203307366 U CN 203307366U CN 2013202154946 U CN2013202154946 U CN 2013202154946U CN 201320215494 U CN201320215494 U CN 201320215494U CN 203307366 U CN203307366 U CN 203307366U
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- electric arc
- shaft furnace
- arc furnace
- small inclination
- reduced iron
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Abstract
The utility model discloses a continuous hot conveying and charging device for shaft furnace and electric arc furnace reduced iron. The continuous hot conveying and charging device comprises a shaft furnace discharging device, an electric arc furnace, a buffer weighing bin arranged at an outlet of the shaft furnace discharging device, and a conveying device with a small inclination angle which is connected between an outlet of the buffer weighing bin and an inlet of the electric arc furnace and used for conveying materials, wherein the conveying device with the small inclination angle comprises a feeder, a conveying pipe with a small inclination angle, a movable chute and a fixed chute, and the feeder and the conveying pipe with the small inclination angle are respectively provided with a vibration device. According to the continuous hot conveying and charging device, the deficiency of existing equipment is improved, the height of a shaft furnace and the production and maintenance costs of the equipment are reduced, the one-time investment is lowered, the spacing range of the shaft furnace and the electric arc furnace is expanded, and the continuous hot conveying and charging device is simple and compact in structure, safe and reliable.
Description
Technical field
The utility model belongs to metallurgical technology field, and the Continuous Heat that relates to a kind of shaft furnace-electric arc furnace reduced iron is sent feeding device.
Background technology
Shaft furnace production reduced iron (DRI) heat send the electric arc furnace smelting technology can effectively realize energy-saving and emission-reduction, and at present, reduction shaft furnace iron mainly adopts feed bin elephant trunk system, conduit pipe pneumatically to carry or canned haulage system to the hot feed technique of electric arc furnace; Wherein feed bin elephant trunk system is suitable for shaft furnace, electric arc furnace neighbour's scheme: both width between centers are 30～40m approximately, and this device structure is simple, and the serialization level that running cost is low, energy-conservation obviously, electric arc furnace is produced is higher; Conduit pipe pneumatically is carried the conveying be suitable for growing distance, but running cost is higher, invests huge, and uneconomical; Although the handiness of canned haulage system is large, energy-saving effect automatization level poor, that produce is lower, needs a large amount of artificial complete operations.
In prior art, application number is to disclose " a kind of electric furnace sponge iron hot charging device and method thereof " in 200910085263.6 Chinese patent application, this technology is fed in raw material the thermal sponge iron of producing in shaft furnace by elephant trunk mode is directly slipped into electric arc furnace and is made steel under Gravitative Loads, although this technology has realized thermal sponge iron and has carried under air-proof condition, but also exist corresponding problem, because being slips into electric arc furnace by Gravitative Loads by sponge iron, therefore, elephant trunk need have than high spud angle, and the size at inclination angle is directly restricting the problems such as the height of shaft furnace and equipment energy consumption.
Teachings herein is for application number, to be directly the patent application of 201210477984.3 " a kind of shaft furnace discharge devices ", coordinates shaft furnace DRI production equipment and the shaft furnace the developed-continuous hot charging DRI of electric arc furnace next-door neighbour's layout technology.
Summary of the invention
In view of this, the purpose of this utility model is to provide the Continuous Heat of a kind of shaft furnace-electric arc furnace reduced iron to send feeding device, improvement existing installation deficiency, reduce height and the device fabrication maintenance cost of shaft furnace, reduce one-time investment, enlarge shaft furnace-electric arc furnace spacing range, realize serialization, automatization and controlledization of shaft furnace-electric-arc furnace steelmaking Production Flow Chart, further optimize total system production cost and construction investment.
For achieving the above object, the utility model provides the Continuous Heat of a kind of shaft furnace-electric arc furnace reduced iron to send feeding device: comprise shaft furnace discharge device, electric arc furnace, be arranged on the buffering weighing storehouse in shaft furnace discharge device exit and be connected between buffering exit, weighing storehouse and electric arc furnace ingress the small inclination e Foerderanlage for delivery of material; Described small inclination e Foerderanlage comprise the feeding machine that is arranged on buffering exit, weighing storehouse, small inclination transfer lime that ingress is connected with described feeding machine exit, movable elephant trunk that ingress is connected with described small inclination transfer lime exit and be connected to movable elephant trunk exit and the electric arc furnace ingress between fixedly elephant trunk; On described feeding machine and small inclination transfer lime, be respectively equipped with for it being applied to the vibrating device of horizontal reciprocating exciting force.
Further, described vibrating device is separately positioned on the inlet end place of inlet end and the small inclination transfer lime of feeding machine.
Further, described buffering weighing storehouse exit end also is provided with the accident elephant trunk, and described accident elephant trunk is provided with the control valve opened and closed for the mouth of pipe.
Further, described movable elephant trunk is provided with nitrogen seal device.
Further, described fixedly elephant trunk is provided with the flue gas trip valve.
Further, also comprise be used to the PLC controller of regulating excitation parameter and the quality signal that also will detect for detection of quality of material and be transferred to the weight sensor in the PLC controller.
Further, described weight sensor is at least three, is separately positioned on the decompression storehouse and buffering weighing storehouse of two shaft furnace discharge devices.
Further, the installation direction of described small inclination transfer lime and the angle between horizontal direction are-3～12 degree.
The beneficial effects of the utility model are: realized the direct connection of shaft furnace-electric arc furnace, the hot reduced iron of shaft furnace (DRI temperature 600～700 degree) fully-closed heat can have been delivered to electric arc furnace and make steel operation, saved energy consumption, improved recovery rate of iron; Due to the small inclination transfer lime adopted, be applicable to carrying the material of different shape, not only reduced the shaft furnace height, more enlarged the distance range between shaft furnace and electric arc furnace, improved equipment and process level of automation, reduced device fabrication maintenance cost and one-time investment, simple for structure, compact, safe and reliable.
The accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, the utility model provides following accompanying drawing to describe:
Fig. 1 is structural representation of the present utility model;
Wherein: 1-shaft furnace discharge device, 2-electric arc furnace, 3-buffering weighing storehouse, 4-feeding machine, 5-small inclination transfer lime, 6-movable elephant trunk, 7-fixedly elephant trunk, 8-vibrating device, 9-accident elephant trunk, 10-control valve, 11-nitrogen seal device, 12-flue gas trip valve, 13-PLC controller, 14-weight sensor.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
The Continuous Heat of shaft furnace as shown in Figure 1-electric arc furnace reduced iron is sent feeding device: comprise shaft furnace discharge device 1, electric arc furnace 2, be arranged on the buffering weighing storehouse 3 in shaft furnace discharge device 1 exit and be connected between buffering 3 exits, weighing storehouse and electric arc furnace 2 ingress the small inclination e Foerderanlage for delivery of material; Described small inclination e Foerderanlage comprise the feeding machine 4 that is arranged on buffering 3 exits, weighing storehouse, small inclination transfer lime 5 that ingress is connected with described feeding machine 4 exits, movable elephant trunk 6 that ingress is connected with described small inclination transfer lime 5 exits and be connected to movable elephant trunk 6 exits and electric arc furnace 2 ingress between fixedly elephant trunk 7; On described feeding machine 4 and small inclination transfer lime 5, be respectively equipped with for it being applied to the vibrating device 8 of horizontal reciprocating exciting force.
In the present embodiment, be provided with buffering weighing storehouse 3, make material enter into small inclination transfer lime 5 uniform and stable more from shaft furnace discharge device 1, adopt small inclination transfer lime 5, eliminated while utilizing the deadweight convey materials restriction to the e Foerderanlage height, enlarged the spacing range between electric arc furnace 2 and shaft furnace discharge device 1, made it range of application wider, the exciting force produced by vibrating device 8 provides transmitting power for feeding machine 4 and small inclination transfer lime 5, be convenient to regulate, safe.
As shown in Figure 1, two vibrating devices 8 in the present embodiment are separately positioned on the inlet end place of inlet end and the small inclination transfer lime 5 of feeding machine 4, are convenient to material and carry downwards.
In the present embodiment, buffering weighing storehouse 3 exit end also are provided with accident elephant trunk 9, and described accident elephant trunk 9 is provided with the control valve 10 opened and closed for the mouth of pipe; Control valve 10 is normally off, and a certain equipment that is arranged on feeding machine 4 lower ends breaks down, when shaft furnace discharge device 1 is still got the raw materials ready in weighing storehouse 3 to buffering, can open control valve 10, and the material entered in buffering weighing storehouse 3 is discharged, and prevents from piling up.
Fixedly elephant trunk 7 in the present embodiment is provided with flue gas trip valve 12, stop reinforced or while stopping producing, prevent in electric arc furnace 2 high-temperature gas along by fixing elephant trunk 7 to vertical spread.
The present embodiment also comprises that the PLC controller 13 be used to regulating excitation parameter reaches the weight sensor 14 that the quality signal that also will detect for detection of quality of material is transferred to 13 li of PLC controllers, detect in real time and regulate, guaranteeing that discharge reaches the purpose of save energy smoothly simultaneously.
Weight sensor described in the present embodiment 14 is three, be separately positioned on the decompression storehouse and buffering weighing storehouse 3 of two shaft furnace discharge devices 1, buffering weighing storehouse 3 in the present embodiment shaft furnace discharge device 1 in discharge still uninterruptedly feeds in raw material to buffering weighing storehouse 3, can accurately calculate the discharge velocity of buffering weighing storehouse 3 to discharge in feeding machine 4 by three weight sensors 14 are set.
In the present embodiment, the installation direction of small inclination transfer lime 5 and the angle between horizontal direction are-3～12 degree, small inclination transfer lime 5 angled conveyors are anharmonic vibration when-3～5 spend, mass transport speed has the characteristics of rewind down slow-motion, when wherein small inclination transfer lime 5 angled conveyors are negative value, the exit end of small inclination transfer lime 5 is higher than inlet end, the convey materials that can slightly make progress, but energy consumption is higher; Small inclination transfer lime 5 angled conveyors are simple harmonic oscillation when 6～12 spend, energy consumption is lower; Small inclination transfer lime angled conveyor shown in Fig. 1 is at 8 degree.
Finally explanation is, above preferred embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can to it, make various changes in the form and details, and not depart from the utility model claims limited range.
Claims (8)
1. the Continuous Heat of shaft furnace-electric arc furnace reduced iron is sent feeding device, it is characterized in that: comprise shaft furnace discharge device, electric arc furnace, be arranged on the buffering weighing storehouse in shaft furnace discharge device exit and be connected between buffering exit, weighing storehouse and electric arc furnace ingress the small inclination e Foerderanlage for delivery of material; Described small inclination e Foerderanlage comprise the feeding machine that is arranged on buffering exit, weighing storehouse, small inclination transfer lime that ingress is connected with described feeding machine exit, movable elephant trunk that ingress is connected with described small inclination transfer lime exit and be connected to movable elephant trunk exit and the electric arc furnace ingress between fixedly elephant trunk; On described feeding machine and small inclination transfer lime, be respectively equipped with for it being applied to the vibrating device of horizontal reciprocating exciting force.
2. the Continuous Heat of shaft furnace according to claim 1-electric arc furnace reduced iron is sent feeding device, it is characterized in that: described vibrating device is separately positioned on the inlet end place of inlet end and the small inclination transfer lime of feeding machine.
3. the Continuous Heat of shaft furnace according to claim 1-electric arc furnace reduced iron is sent feeding device, it is characterized in that: described buffering weighing storehouse exit end also is provided with the accident elephant trunk, and described accident elephant trunk is provided with the control valve opened and closed for the mouth of pipe.
4. the Continuous Heat of shaft furnace according to claim 1-electric arc furnace reduced iron is sent feeding device, it is characterized in that: described movable elephant trunk is provided with nitrogen seal device.
5. the Continuous Heat of shaft furnace according to claim 1-electric arc furnace reduced iron is sent feeding device, it is characterized in that: described fixedly elephant trunk is provided with the flue gas trip valve.
6. the Continuous Heat of shaft furnace according to claim 1-electric arc furnace reduced iron is sent feeding device, it is characterized in that: also comprise be used to the PLC controller of regulating excitation parameter and the quality signal that also will detect for detection of quality of material and be transferred to the weight sensor in the PLC controller.
7. the Continuous Heat of shaft furnace according to claim 6-electric arc furnace reduced iron is sent feeding device, it is characterized in that: described weight sensor is at least three, is separately positioned on the decompression storehouse and buffering weighing storehouse of two shaft furnace discharge devices.
8. according to the Continuous Heat of the described shaft furnace of claim 1～7 any one-electric arc furnace reduced iron, send feeding device, it is characterized in that: the installation direction of described small inclination transfer lime and the angle between horizontal direction are-3～12 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202154946U CN203307366U (en) | 2013-04-25 | 2013-04-25 | Continuous hot conveying and charging device for shaft furnace and electric arc furnace reduced iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202154946U CN203307366U (en) | 2013-04-25 | 2013-04-25 | Continuous hot conveying and charging device for shaft furnace and electric arc furnace reduced iron |
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| Publication Number | Publication Date |
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| CN203307366U true CN203307366U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202154946U Expired - Fee Related CN203307366U (en) | 2013-04-25 | 2013-04-25 | Continuous hot conveying and charging device for shaft furnace and electric arc furnace reduced iron |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266194A (en) * | 2013-04-25 | 2013-08-28 | 中冶赛迪工程技术股份有限公司 | Shaft furnace-electric arc furnace direct reduced iron continuous hot-feeding device and feeding control method |
| CN104444258A (en) * | 2014-11-11 | 2015-03-25 | 宁夏嘉翔自控技术有限公司 | Discharging system of pipe type belt conveyor of electric forging furnace |
| CN105115296A (en) * | 2015-09-08 | 2015-12-02 | 泰州市恒达金属铸件厂 | Industrial electric-arc furnace |
-
2013
- 2013-04-25 CN CN2013202154946U patent/CN203307366U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266194A (en) * | 2013-04-25 | 2013-08-28 | 中冶赛迪工程技术股份有限公司 | Shaft furnace-electric arc furnace direct reduced iron continuous hot-feeding device and feeding control method |
| CN104444258A (en) * | 2014-11-11 | 2015-03-25 | 宁夏嘉翔自控技术有限公司 | Discharging system of pipe type belt conveyor of electric forging furnace |
| CN105115296A (en) * | 2015-09-08 | 2015-12-02 | 泰州市恒达金属铸件厂 | Industrial electric-arc furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20190425 |