CN2567936Y - Powder spray device of precision dosing feeding for iron melt desulfurate - Google Patents
Powder spray device of precision dosing feeding for iron melt desulfurate Download PDFInfo
- Publication number
- CN2567936Y CN2567936Y CN 02292592 CN02292592U CN2567936Y CN 2567936 Y CN2567936 Y CN 2567936Y CN 02292592 CN02292592 CN 02292592 CN 02292592 U CN02292592 U CN 02292592U CN 2567936 Y CN2567936 Y CN 2567936Y
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- feeder
- positive displacement
- metal magnesium
- tank
- jet
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model relates to a powder spraying device which is used for molten iron to blow passivated metal magnesium grains to be desulfurized and also is used for precisely and quantitatively feeding material, and belongs to a powder spraying device for a volume type vertical wheel to feed material. The passivated metal magnesium grains are loaded in a spraying tank, the dry powder material with the granularity below 1.5 millimeters passes through a feeding mechanism on the lower part of a tank body, nitrogen with certain pressure is used as a carrier, the passivated metal magnesium freely selects material discharge quantity within the range of 2 kg/min to 16 kg/min, the passivated metal magnesium is uniformly and continuously delivered to a molten iron ladle, and the molten iron is desulfurized. The utility model has the advantages of simple operation, accuracy, reliability, uniform material transportation, stable material quantity and small fluctuation. The fluctuation quantity ranges from +0.3 kg/min to-3 kg/min, the material discharge quantity can be adjusted in a stepless way, the material spraying quantity is accurately metered by an electronic scale, and the accuracy display of a display instrument can achieve 0.1 kg. A sealing tank type feeding device has the advantages of energy saving, environmental protection, no pollution, simple structure, convenient operation and low cost, and is suitable for occasions with various requirements of powder spraying and accurate material discharge quantity.
Description
Technical field:
The utility model relates to a kind of DESULPHURIZATION OF HOT METAL BY POWDER INJECTION and requires powder blanking amount accurate, and the precision metering device that accuracy requirement is high belongs to metallurgical, mechanical field.
Background technology:
At present, the powder injection desulphurization technology is popularized gradually, is promoted at metallurgy industry, and its principle of work is to utilize gas as carrier, and granular passive metal magnesium grain with certain speed, is ejected in the pending iron ladle, makes it reach high desulfurization degree.But in the reality winding-up, it is even mass flow discrepancy to occur through regular meeting, and pulse phenomenon is arranged, and stops up easily now, and flow rate fluctuation is big, wayward in the actual measurement.In actual winding-up process, require the metal magnesium granule amount of spray passivation, in the unit time evenly, continuously and fluctuate little, general requirement within ± 0.3kg/min, thereby realize that the molten iron splash is little, stifled rifle improves dust success ratio and desulfurization degree.
Summary of the invention:
The purpose of this utility model, be to overcome the deficiency of known technology, thereby a kind of metal magnesium granule blanking amount tolerance range height through transpassivation can realize jetting the time is provided, blanking evenly, continuously, accurate quantification, feeding coal fluctuating error be controlled at ± dusting device within the 0.3kg/min.
The purpose of this utility model realizes in the following way:
The accurate quantification feeding device of the metal magnesium granule desulfurization of this molten iron spray passivation, belong to a kind of dusting device of positive displacement vertical wheel feed, it comprises: spray tank (1), charging butterfly valve (2), feeder (3), bleeder valve (4), buncher (5), the vertical feed wheel of positive displacement (6), cantilever shafts (7) and jet-type air nozzle (8), electronic scales (9) are formed.Wherein, more than these parts all be installed on the same tank body, tank body contacts to be with other outside and is flexible coupling except that the transmitter rigidity with electronic scale (9) contacts.The metal magnesium granule of passivation is through in the feed valve tank filling, spray tank (1) is divided into the feeder (3) that top loading hopper, middle part feed bin and bottom have the vertical feed wheel of positive displacement (6), and wherein charging butterfly valve (2), discharging ball valve (4), intake valve etc. are connected with spray tank (1) by flange.Feeder (3) drives the vertical feed wheel of positive displacement (6) by buncher (5) by cantilever shafts (7) and rotates with certain speed, its adjustable-speed, the vertical feed wheel of positive displacement (6) gear teeth stud with a kind of high-abrasive material, in the form of slot between the gear teeth, the inlet end of feeder (3) is equipped with jet-type air nozzle (8), the spray site of jet-type air nozzle (8) is adjustable, to reach best jet-stream wind.The jetting material amount is by electronic scales (9) accurate measurement.
The housing inner chamber of feeder (3) is the transition rectangle.Axle (7) is used flange with being connected of feeder (3), and axle is a cantilever shafts, is convenient to changeing of the vertical feed wheel of positive displacement (6).The speed adjustment of axle realizes by AC frequency control apparatus.
When this device dusts work, nitrogen enters from inlet mouth, and the powder that drives in the feeder (3) by (8) together is ejected in the iron ladle, because the metal magnesium granule precision prescribed height of spray passivation, it is little to fluctuate, and this device pressurizes by feeder and tank deck and electromagnetic shaker guarantees to realize.
The utility model compared with prior art has following advantage:
The metal magnesium granule blanking amount Accuracy Error of the utility model passivation can reach ± 0.3kg/min, and according to different desulfurization needs, the blanking amount can be controlled between 2～16kg/min in stepless speed regulation.The vertical feed wheel of the positive displacement gear teeth are flute profile and adopt exotic materials wear-resistant, thereby prolong service life of equipment.Powder does not stop up, defeated material is even, continuous, quantitative.The amount of dusting accurately is shown to 0.1kg by electronic scales and display instrument.Airtight pot type feed, can save energy, environmental protection, pollution-free.
This apparatus structure is simple, easy to operate, cost is low, can be adapted to the multiple requirement blanking amount occasion accurately of dusting.
Description of drawings:
Fig. 1 is a front view of the present utility model;
Fig. 2 is the front view of accurate feeding mechanism;
Fig. 3 is the side-view of accurate feeding mechanism.
In Fig. 1, (1) spray tank; (2) charging butterfly valve; (3) feeder; (4) bleeder valve; (9) electronic scales.
In Fig. 2, (5) buncher; (7) cantilever shafts.
The vertical feed wheel of (6) positive displacement in Fig. 3; (8) jet-type air nozzle.
Embodiment:
Buncher (5) drives the vertical feed wheel of positive displacement (6) and rotates, and the metal magnesium granule that drives passivation is with a certain amount of output, and jet-type air nozzle (8) feeds nitrogen, thereby makes the metal magnesium granule of passivation enter hot metal ladle with certain speed.
This device comprises: spray tank (1) useful volume 0.3m
3, withstand voltage 1Mpa.Charging butterfly valve (2) is opened, and the metal magnesium granule of the particulate state of packing into passivation is closed feed valve then.When winding-up, open bleeder valve (4), from the nitrogen of inlet mouth feeding certain pressure, start buncher (5) the vertical feed wheel of positive displacement (6) is rotated, by adjusting the motor revolution, satisfy corresponding blanking amount, motor setting range 1: 4.When stopping to jet, close nitrogen and all valves and buncher (5).And by electronic scales (9) display instrument accurately the metering amount of dusting to 0.1kg.
Claims (2)
1, a kind of dusting device that is used for desulfurizing iron with the positive displacement vertical wheel feed of accurate quantification feed, it mainly comprises spray tank (1), charging butterfly valve (2), feeder (3), bleeder valve (4), buncher (5), the vertical feed wheel of positive displacement (6), cantilever shafts (7) and jet-type air nozzle (8), electronic scales (9) composition.It is characterized in that: above these parts all are installed on the same tank body, and tank body contacts to be with other outside and is flexible coupling except that the transmitter rigidity with electronic scale (9) contacts.The metal magnesium granule of passivation is through in the feed valve tank filling, spray tank (1) is divided into the feeder (3) that top loading hopper, middle part feed bin and bottom have the vertical feed wheel of positive displacement (6), and wherein charging butterfly valve (2), discharging ball valve (4), intake valve etc. are connected with spray tank (1) by flange.Feeder (3) drives the vertical feed wheel of positive displacement (6) by buncher (5) by cantilever shafts (7) and rotates with certain speed, its adjustable-speed, the vertical feed wheel of positive displacement (6) gear teeth stud with a kind of high-abrasive material, in the form of slot between the gear teeth, the inlet end of feeder (3) is equipped with jet-type air nozzle (8), the spray site of jet-type air nozzle (8) is adjustable, to reach best jet-stream wind.The jetting material amount is by electronic scales (9) accurate measurement.
2, feeding device according to claim 1 is characterized in that: the housing inner chamber of described feeder (3) is the transition rectangle.Axle (7) is used flange with being connected of feeder (3), and axle is a cantilever shafts, is convenient to changeing of the vertical feed wheel of positive displacement (6).The speed adjustment of axle realizes by AC frequency control apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02292592 CN2567936Y (en) | 2002-12-26 | 2002-12-26 | Powder spray device of precision dosing feeding for iron melt desulfurate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02292592 CN2567936Y (en) | 2002-12-26 | 2002-12-26 | Powder spray device of precision dosing feeding for iron melt desulfurate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2567936Y true CN2567936Y (en) | 2003-08-20 |
Family
ID=33750872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02292592 Expired - Lifetime CN2567936Y (en) | 2002-12-26 | 2002-12-26 | Powder spray device of precision dosing feeding for iron melt desulfurate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2567936Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793134A (en) * | 2010-02-11 | 2010-08-04 | 许明标 | Fiber batch feeder for well cementation of oil field |
| CN102180358A (en) * | 2011-04-18 | 2011-09-14 | 宝钢工程技术集团有限公司 | Blowing feeding system and method in mechanical stirring desulfurization |
| CN103194561A (en) * | 2013-04-03 | 2013-07-10 | 河北文丰钢铁有限公司 | Device for directly adding sintering returned dust into ladle |
| CN104437923A (en) * | 2014-11-25 | 2015-03-25 | 钢铁研究总院 | Automatic powder spraying device |
-
2002
- 2002-12-26 CN CN 02292592 patent/CN2567936Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793134A (en) * | 2010-02-11 | 2010-08-04 | 许明标 | Fiber batch feeder for well cementation of oil field |
| CN102180358A (en) * | 2011-04-18 | 2011-09-14 | 宝钢工程技术集团有限公司 | Blowing feeding system and method in mechanical stirring desulfurization |
| CN102180358B (en) * | 2011-04-18 | 2012-10-03 | 宝钢工程技术集团有限公司 | Blowing feeding system and method in mechanical stirring desulfurization |
| CN103194561A (en) * | 2013-04-03 | 2013-07-10 | 河北文丰钢铁有限公司 | Device for directly adding sintering returned dust into ladle |
| CN103194561B (en) * | 2013-04-03 | 2015-04-29 | 河北文丰钢铁有限公司 | Device for directly adding sintering returned dust into ladle |
| CN104437923A (en) * | 2014-11-25 | 2015-03-25 | 钢铁研究总院 | Automatic powder spraying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING CHINA METALLURGICAL EQUIPMENT RESEARCH + D Free format text: FORMER NAME: BEIJING RESEARCH AND DESIGN GENERAL INST. OF METALLURGICAL EQUIPMENT, CHINA META |
|
| CP03 | Change of name, title or address |
Address after: Beijing City, Chaoyang District Anwai Gu Zhuang 2, zip code: 100029 Patentee after: Beijing Metallurgical Equipment Research and Design Institute Co., Ltd. Address before: Beijing City, Chaoyang District Anwai Gu Zhuang 2, zip code: 100029 Patentee before: Beijing Research Institute of Metallurgical Equipment, China Metallurgical Const |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121226 Granted publication date: 20030820 |
|
| DD01 | Delivery of document by public notice |
Addressee: Jie Zhongyuan Document name: Notification of Expiration of Patent Right Duration |