CN201999961U - Gas whirling cooling type feed gun - Google Patents
Gas whirling cooling type feed gun Download PDFInfo
- Publication number
- CN201999961U CN201999961U CN2011200754655U CN201120075465U CN201999961U CN 201999961 U CN201999961 U CN 201999961U CN 2011200754655 U CN2011200754655 U CN 2011200754655U CN 201120075465 U CN201120075465 U CN 201120075465U CN 201999961 U CN201999961 U CN 201999961U
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- China
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- pipe
- shower nozzle
- outer tube
- inner core
- gas cyclone
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Abstract
The utility model discloses a gas whirling cooling type feed gun which mainly solves the defects in the existing feed mode that a core-spun yarn can not enter liquid steel or melted iron at a preset depth, a feed device is easy to cause splashing of covering slag, the liquid steel or the melted iron on the liquid surface, the yield of additive of the liquid steel or the melted iron is low and the like. The gas whirling cooling type feed gun comprises an inner pipe and an outer pipe which are sheathed at the periphery of a guide pipe of a feed machine, an inlet at the top of an annular passageway formed by the inner pipe and the outer pipe is connected with an airflow pressure stabilizing box which is provided with an air inlet pipe joint; an outlet at the bottom of the annular passageway formed by the inner pipe and the outer pipe is connected with a whirling jet head with a hollow structure; the inner hollow cavity of the whirling jet head is connected with the inner pipe; and both the outer wall of the outer pipe and the outer wall of the whirling jet head are coated with fireproofing layers. The fusible core-spun yarn can be effectively cooled and protected, a rotating air bag with certain pressure can be formed in the liquid steel or the melted iron, and the core-spun yarn can enter the liquid steel or melted iron at the preset depth, so that the core material yield can be improved greatly.
Description
Technical field
The utility model relates to the silk equipment of feeding in steel-making or the iron-smelting process, refers to a kind of gas cyclone cooled hello silk rifle particularly.
Background technology
In process for making,, must in molten steel, add refining agent in order to obtain high-quality steel alloy; In ironmaking and casting technique, molten iron is carried out desulfurization processing and spheroidizing, must in iron liquid, add the desulfurization nodulizing agent.At present, the adding mode of above-mentioned additive is the soft steel cored-wire that the alloying element of easy oxidation, light specific gravity or rare earth element are placed rounded section, rolls the back by wire feeder and is flat flat shape, and send into molten steel or iron liquid inside under the guiding of wire leading pipe.When feeding the lower cored-wire of core fusing point and boiling point, the wire leading pipe outlet directly influences the recovery rate of alloying element or rare earth element apart from the distance on molten steel or iron liquid surface.Distance is excessive above liquid level; cored-wire can occur and spiral, not reach the ideal feeding degree of depth, cause a large amount of alloying elements or rare earth element to be vaporized in advance and be diffused in the air because of covering slag stops above liquid level; not only recovery rate is low, and causes environmental pollution.Wire leading pipe outlet dry slag phenomenon can appear in close together above liquid level, even outlet blocks, and can not feed silk.
In order to address the above problem; publication number is gas shield technology and the device that the Chinese invention patent ublic specification of application of CN1394966A has been introduced a kind of molten steel feeding alloy wire; it is fixedly charging into shielding gas in the wire leading pipe; around alloy wire and ladle liquid level, form specific gas shield zone; but the recovery rate of additive is still lower; and the flat flat cored-wire of axial motion and fixedly the sealing between the wire leading pipe comparatively the difficulty, the gas that directly sprays the molten steel face also causes melt cinder to splash easily.Granted publication number discloses a kind of ladle feeding line rifle for the Chinese utility model patent specification sheets of CN201288206Y; it charges into shielding gas in movable wire leading pipe; with cooling protection cored-wire above the molten steel face; but the predetermined depth that it can not make cored-wire enter molten steel face below, still existence activity wire leading pipe and the fixing sealing between the wire leading pipe and directly spray the problem that the gas of molten steel face causes melt cinder to splash.Granted publication number discloses a kind of novel steel-making wire feeder water-cooled guide wire apparatus for the Chinese utility model patent specification sheets of CN201501903U, it adds cooling water channel at movable wire leading pipe outer wall and comes cored-wire is cooled off, but its cooling principle is based on heat conduction, between wire leading pipe and the cored-wire is air, and is that the heat conduction speed of heat conductor is far below thermal radiation and thermal convection with the air.Therefore, this water-cooled guide wire apparatus is limited to the cooling performance of cored-wire.
The recovery rate of alloy or rare earth when feeding silk in order to improve as far as possible, the desirable feeding degree of depth is generally the molten steel or the iron liquid degree of depth 0.6～0.75 times, reach this degree of depth, and the wire leading pipe outlet need enter liquid internal.Yet existing air cooling wire leading pipe and water-cooled wire leading pipe all can not enter liquid internal, are easy to cause melt cinder and liquid to enter the cored-wire passage if enter, and blocking channel freezes.
Summary of the invention
Thereby the utility model aim to provide a kind of not only can to meltable cored-wire carry out effective cooling protection, but also can in molten steel or iron liquid, form rotation air bag with certain pressure, and the predetermined depth that can make cored-wire enter molten steel or the iron liquid gas cyclone cooled that significantly improves the core recovery rate feed a silk rifle.
For achieving the above object, the designed gas cyclone cooled of the utility model is fed the silk rifle, the interior pipe and the outer tube that comprise the wire leading pipe periphery that is sleeved on wire feeder, pipe links to each other with the air-flow pressurizer tank with top, the circular channel inlet that outer tube forms in described, and described air-flow pressurizer tank is provided with the inlet pipe joint; Pipe links to each other with the eddy flow jet thrust of hollow structure with the circular channel outlet at bottom that outer tube forms in described, and the hollow cavity of described eddy flow jet thrust links to each other with interior pipe, and the outer wall of the outer wall of described outer tube and eddy flow jet thrust all is coated with refractory masses.
Further, described eddy flow jet thrust combines by the shower nozzle inner core that is the spinning top bodily form with shower nozzle overcoat that its shape is complementary, and the bottom of pipe offered the hollow cavity that links to each other with interior pipe on the described shower nozzle inner core in described shower nozzle inner core was fixedly connected on; Described shower nozzle overcoat is fixedly connected on the bottom of outer tube, offers some the circumferential equally distributed spiral jet channels in edge between the mating surface of described shower nozzle inner core and shower nozzle overcoat.
Further, described spiral jet channel is opened on the surface of revolution of described shower nozzle inner core, and its quantity is 3～6, and most preferred quantity is 4.
Again further, the cut arc length of cylindrical that the outlet of described shower nozzle inner core lower end and described spiral jet channel is intersected accounts for 30～100% of its circumference, preferably is controlled in 70～90% the scope.
Further, described interior pipe and outer tube adopt threaded pipe.
Principle of work of the present utility model is such: when feeding the cored-wire that contains additive in molten steel or iron liquid, on the one hand whole rifle body moves up and down along the fixed wire leading pipe according to feeding the silk needs, so that be inserted into the inside of molten steel or iron liquid or leave liquid level; Cooling gas enters the air-flow pressurizer tank from the inlet pipe joint on the other hand, the circular channel that forms by interior pipe and outer tube enters bottom eddy flow jet thrust, the gas cyclone that is sprayed forms the air bag with certain pressure in molten steel or iron liquid, the outer gas of air bag is tangentially dispersed along refractory masses and is upwards overflowed, air bag internal layer gas then enters in interior pipe and the wire leading pipe by the hollow cavity of eddy flow jet thrust, and upwards overflows around the cored-wire outer wall; Meanwhile, the cored-wire that contains additive passes air bag and enters in molten steel or the iron liquid and melt.
Compared with prior art, advantage applies of the present utility model is in following several respects:
One, the air-flow that sprays from the eddy flow jet thrust forms whirlpool at molten steel or iron liquid surface, can drive the covering slag, molten steel or the iron liquid that close on it and also rotate, and stops up the cored-wire passage thereby avoided covering slag, molten steel or iron liquid to splash.
They are two years old, the rotation air bag that has certain pressure from the air-flow of eddy flow jet thrust ejection in molten steel or the inner formation of iron liquid, can drive the molten steel or the iron liquid that close on it and also rotate, thereby avoid molten steel or iron liquid to enter the cored-wire passage, blocking channel freezes.
They are three years old, because the rotation air bag has certain pressure, can guarantee to support the molten steel post or the iron fluid column of certain depth, can make the eddy flow jet thrust enter into the predetermined degree of depth in liquid level below like this and do not stopped up by liquid, cored-wire enters into molten steel from air bag or iron liquid melts, and significantly improves recovery rate.
Its four, the outer gas of rotation air bag is tangentially dispersed naturally, and is close to refractory masses and upwards overflows, liquid fluctuating is little.
Its five, rotation air bag internal layer gas is in the hollow cavity of eddy flow jet thrust enters pipe and the wire leading pipe, but air-isolation and molten steel or iron liquid are avoided molten steel or iron liquid oxidation.
Its six, interior pipe and outer tube adopt the threaded pipe with elastic properties, can make the refractory masses axial hot stroke identical with its maintenance, thereby effectively avoid the refractory masses be full of cracks, the work-ing life of prolongation rifle.
Description of drawings
Fig. 1 is the main sectional structure synoptic diagram that a kind of gas cyclone cooled is fed the silk rifle.
Fig. 2 analyses and observe the structure for amplifying synoptic diagram for the master of eddy flow jet thrust among Fig. 1.
Fig. 3 is the structural representation of looking up of shower nozzle inner core among Fig. 2.
Embodiment
Feeding the silk rifle below in conjunction with the drawings and specific embodiments to gas cyclone cooled of the present utility model is described in further detail.
Gas cyclone cooled shown in the figure is fed the silk rifle, mainly is made up of the parts such as eddy flow jet thrust 6 of air-flow pressurizer tank 3, interior pipe 4, outer tube 5 and hollow structure.Rifle can move up and down with respect to fixing wire leading pipe 1 integral body.Interior pipe 4 and outer tube 5 are sleeved on fixedly wire leading pipe 1 periphery of wire feeder successively.The ingress, top, circular channel that pipe 4 and outer tube 5 formed in air-flow pressurizer tank 3 was arranged on, and fixedly connected with outer tube 5 with interior pipe 4 by the mode of seal welding is equipped with inlet pipe joint 2 in a side of air-flow pressurizer tank 3.The outlet at bottom place, circular channel that pipe 4 and outer tube 5 formed in eddy flow jet thrust 6 was arranged on, it combines by the shower nozzle inner core 6.1 that is the spinning top bodily form with shower nozzle overcoat 6.2 that its shape is complementary.The bottom of pipe 4 offered the hollow cavity 6.3 that links to each other with interior pipe 4 in shower nozzle inner core 6.1 was weldingly fixed on the shower nozzle inner core 6.1.Shower nozzle overcoat 6.2 is weldingly fixed on the bottom of outer tube 5.Between the mating surface of shower nozzle inner core 6.1 and shower nozzle overcoat 6.2, offer along circumferential equally distributed spiral jet channel 6.4.Spiral jet channel 6.4 both can be opened on the shower nozzle inner core 6.1, also can be opened on the shower nozzle overcoat 6.2, and the mode by cutting in the present embodiment is opened on the surface of revolution of shower nozzle inner core 6.1, processed more convenient quick like this.Spiral jet channel 6.4 offer quantity to guarantee that producing uniform and stable gas cyclone is as the criterion, general 3～6 can meet the demands, homogeneous design has 4 spiral jet channels 6.4 in the present embodiment.In order to ensure forming the stable rotation air bag, the outlet parameter design of spiral jet channel 6.4 is also very important, the cylindrical 6.5 cut arc length that general shower nozzle inner core 6.1 lower ends and 6.4 outlets of spiral jet channel are intersected account for 30～100% of its circumference, preferably account for 70～90%.Test shows: under such outlet parameter condition, the pressure of gas cyclone is big, fluctuation is little, helps keeping the stable of rotation air bag, thereby effectively isolates molten steel or iron liquid, guarantees that the cored-wire 8 in the wire leading pipe 1 is in air-flow cooling protection state all the time.In order to prolong the work-ing life of parts such as the shower nozzle overcoat 6.2 that is inserted in molten steel or the iron liquid and outer tube 5, on the outer wall of shower nozzle overcoat 6.2 and outer tube 5, be coated with refractory masses 7, and interior pipe 4 and outer tube 5 all adopt the rubber-like threaded pipe, so that the axial hot stroke that itself and refractory masses 7 are consistent avoids refractory masses 7 to produce be full of cracks.
When above-mentioned gas eddy flow cooled was fed the work of silk rifle, whole rifle body can move up and down along fixed wire leading pipe 1, so that be inserted into the inside of molten steel or iron liquid or leave liquid level.From the cored-wire 8 of wire feeder in the guiding lower edge of wire leading pipe 1, manage 4, the hollow cavity 6.3 of shower nozzle inner core 6.1 and the lower end endoporus of shower nozzle overcoat 6.2 pass.Meanwhile, the inertia cooling gas with certain pressure enters air-flow pressurizer tank 3 from inlet pipe joint 2, the circular channel in passing between pipe 4 and the outer tube 5, and ejection after 4 spiral jet channels 6.4 quicken forms gas cyclone.When the rifle head was above liquid level, the below of gas cyclone formed cold zone; When rifle head during near liquid level, gas cyclone promotes covering slag, molten steel or the rotation of iron liquid and forms whirlpool; When the rifle head further descended, upper strata molten steel or iron liquid converged to the rifle body, and near molten steel the rifle head or iron liquid is rotation under gas cyclone promotes still, forms air bag.Because flow, the gas in the air bag still temperature is lower.The outer gas of air bag is tangentially dispersed along refractory masses 7 and is upwards overflowed, and liquid fluctuating is very little.Air bag internal layer gas then enters in interior pipe 4 and the wire leading pipe 1 by the hollow cavity 6.3 of shower nozzle inner core 6.1, and upwards overflows air-isolation and molten steel or iron liquid around the outer wall of cored-wire 8.Cored-wire 8 passes from air bag, enters in molten steel or the iron liquid to melt.
Claims (9)
1. a gas cyclone cooled is fed the silk rifle, the interior pipe (4) and the outer tube (5) that comprise wire leading pipe (1) periphery that is sleeved on wire feeder, it is characterized in that: pipe (4) links to each other with air-flow pressurizer tank (3) with top, the circular channel inlet that outer tube (5) forms in described, and described air-flow pressurizer tank (3) is provided with inlet pipe joint (2); Pipe (4) links to each other with the eddy flow jet thrust (6) of hollow structure with the circular channel outlet at bottom that outer tube (5) forms in described, the hollow cavity of described eddy flow jet thrust (6) links to each other with interior pipe (4), and the outer wall of the outer wall of described outer tube (5) and eddy flow jet thrust (6) all is coated with refractory masses (7).
2. gas cyclone cooled according to claim 1 is fed the silk rifle, it is characterized in that: described eddy flow jet thrust (6) combines by the shower nozzle inner core (6.1) that is the spinning top bodily form with shower nozzle overcoat (6.2) that its shape is complementary, described shower nozzle inner core (6.1) is fixedly connected on the bottom of interior pipe (4), offers the hollow cavity (6.3) that links to each other with interior pipe (4) on the described shower nozzle inner core (6.1); Described shower nozzle overcoat (6.2) is fixedly connected on the bottom of outer tube (5), offers some the circumferential equally distributed spiral jet channels in edge (6.4) between the mating surface of described shower nozzle inner core (6.1) and shower nozzle overcoat (6.2).
3. gas cyclone cooled according to claim 2 is fed the silk rifle, and it is characterized in that: described spiral jet channel (6.4) is opened on the surface of revolution of described shower nozzle inner core (6.1), and its quantity is 3～6.
4. gas cyclone cooled according to claim 2 is fed the silk rifle, and it is characterized in that: described spiral jet channel (6.4) is opened on the surface of revolution of described shower nozzle inner core (6.1), and its quantity is 4.
5. feed the silk rifle according to claim 3 or 4 described gas cyclone cooleds, it is characterized in that: the cut arc length of the cylindrical (6.5) that described shower nozzle inner core (6.1) lower end and described spiral jet channel (6.4) outlet are intersected accounts for 30～100% of its circumference.
6. feed the silk rifle according to claim 3 or 4 described gas cyclone cooleds, it is characterized in that: the cut arc length of the cylindrical (6.5) that described shower nozzle inner core (6.1) lower end and described spiral jet channel (6.4) outlet are intersected accounts for 70～90% of its circumference.
7. feed the silk rifle according to each described gas cyclone cooled in the claim 1 to 4, it is characterized in that: pipe (4) and outer tube (5) adopt threaded pipe in described.
8. gas cyclone cooled according to claim 5 is fed the silk rifle, it is characterized in that: pipe (4) and outer tube (5) adopt threaded pipe in described.
9. gas cyclone cooled according to claim 6 is fed the silk rifle, it is characterized in that: pipe (4) and outer tube (5) adopt threaded pipe in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200754655U CN201999961U (en) | 2011-03-22 | 2011-03-22 | Gas whirling cooling type feed gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200754655U CN201999961U (en) | 2011-03-22 | 2011-03-22 | Gas whirling cooling type feed gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201999961U true CN201999961U (en) | 2011-10-05 |
Family
ID=44702706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200754655U Expired - Lifetime CN201999961U (en) | 2011-03-22 | 2011-03-22 | Gas whirling cooling type feed gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201999961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168162A (en) * | 2011-03-22 | 2011-08-31 | 熊烈强 | Air cyclone cooling type wire feeding gun |
| CN103045799A (en) * | 2012-08-08 | 2013-04-17 | 湖北亚克新材料有限公司 | Wire stock conveying device and method |
-
2011
- 2011-03-22 CN CN2011200754655U patent/CN201999961U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168162A (en) * | 2011-03-22 | 2011-08-31 | 熊烈强 | Air cyclone cooling type wire feeding gun |
| CN102168162B (en) * | 2011-03-22 | 2012-07-18 | 熊烈强 | Air cyclone cooling type wire feeding gun |
| CN103045799A (en) * | 2012-08-08 | 2013-04-17 | 湖北亚克新材料有限公司 | Wire stock conveying device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111005 Effective date of abandoning: 20120718 |