CN213317658U - Bottom blowing stirring device for producing ferromanganese - Google Patents
Bottom blowing stirring device for producing ferromanganese Download PDFInfo
- Publication number
- CN213317658U CN213317658U CN202020604763.8U CN202020604763U CN213317658U CN 213317658 U CN213317658 U CN 213317658U CN 202020604763 U CN202020604763 U CN 202020604763U CN 213317658 U CN213317658 U CN 213317658U
- Authority
- CN
- China
- Prior art keywords
- valve frame
- blowing
- ladle
- valve
- gas circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model discloses a bottom blowing agitating unit of production ferromanganese for the equipment that shakes the package device in the package method is shaken among the solution prior art is bulky, electric energy power consumption is big, the stirring is more weak, processing time is long, erodees seriously to the ladle furnace wall, the short-lived problem of ladle. The method comprises the following steps: the air supply pipe of the main valve frame and the air supply pipe of the standby valve frame are respectively connected with two inlets of the three-way switching valve, an outlet of the three-way switching valve is connected with the bottom blowing mechanism through an air conveying pipe, and the bottom blowing mechanism is arranged at the bottom of the ladle; the main valve frame comprises an oxygen gas circuit and an argon gas circuit, the tail end of the oxygen gas circuit and the tail end of the argon gas circuit are connected with a gas supply pipe which is connected to the main valve frame, and the standby valve frame is the same as the main valve frame in structure. The valve frame has the beneficial effects that the production cost is reduced, the production efficiency is improved, the defects of a bag shaking method and a bag pouring method are overcome, the reaction is quickly balanced, the safety can be improved by the design of two paths of valve frames, and when one path of valve frame has a problem, the other path of valve frame can provide an air source in time.
Description
Technical Field
The utility model relates to a metallurgical professional equipment makes technical field, especially relates to a bottom blowing agitating unit of production ferromanganese alloy.
Background
At present, ferroalloy enterprises mainly adopt a duplex method to produce medium-low carbon ferromanganese, firstly, high-silicon alloy is produced by reducing silica in a submerged arc furnace by using semi-coke, then manganese ore is reduced by using liquid high-silicon alloy to obtain ferromanganese, and a ladle shaking method refers to adding preheated manganese ore, lime and liquid high-silicon alloy into a ladle, then shaking is carried out, and refining reaction is carried out by means of sensible heat of furnace charge and chemical heat generated by reducing the manganese ore to obtain the medium-low carbon ferromanganese.
The ladle shaking method is also called as a furnace shaking method in some places, liquid high-silicon alloy and preheated manganese slag are added into a ladle, are mixed in the ladle, shake the ladle to enable silicon and MnO in the slag to react, and reduce the MnO, and the whole shaking equipment of the ladle shaking method is complex and consists of a ladle, a cradle, an eccentric shaking device, a transmission device, a tipping device, a lubricating system and a control system, and is relatively complex. Meanwhile, the ladle shaking method has low production efficiency, the residual amount of MnO in the final slag is high and is 5-8%, and the ladle shaking method has serious erosion on the furnace lining of a ladle (used for receiving molten steel and carrying out pouring operation before an open hearth furnace, an electric furnace or a converter in a steel plant and a foundry), has short service life of the ladle, needs to repair refractory materials generally less than 20 furnaces and has high production cost.
Disclosure of Invention
The embodiment of the utility model provides a bottom blowing agitating unit of production ferromanganese for the equipment that shakes the package device in the package method is shaken among the solution prior art is bulky, electric energy power consumption is big, the stirring is more weak, processing time is long, and is serious to the erosion of ladle furnace wall, the short-lived problem of ladle.
The embodiment of the utility model provides a bottom blowing agitating unit of production ferromanganese alloy, include: the device comprises a main valve frame, a standby valve frame, a bottom blowing mechanism, a steel ladle, a three-way switching valve and a gas conveying pipe; the air supply pipe of the main valve frame and the air supply pipe of the standby valve frame are respectively connected with two inlets of the three-way switching valve, an outlet of the three-way switching valve is connected with the bottom blowing mechanism through an air conveying pipe, and the bottom blowing mechanism is arranged at the bottom of the ladle; the main valve frame comprises an oxygen gas circuit and an argon gas circuit, the tail end of the oxygen gas circuit and the tail end of the argon gas circuit are connected with a gas supply pipe which is connected to the main valve frame, and the standby valve frame is the same as the main valve frame in structure.
Preferably, the oxygen gas circuit comprises an oxygen source and a gas control mechanism thereof, the argon gas circuit comprises an argon source and a gas control mechanism thereof, and the gas control mechanism comprises a pneumatic cut-off valve, a flowmeter, an adjusting valve, a field pressure gauge and a pressure transmitter which are sequentially connected with the oxygen source.
Preferably, the pneumatic stop valve in the oxygen gas circuit and the pneumatic stop valve in the argon gas circuit are controlled in an interlocking manner, and only one pneumatic stop valve is in an open state.
Preferably, a plurality of refractory material main bodies embedded with bottom blowing pipes are uniformly arranged at the bottom of the ladle, and the number of the refractory material main bodies is more than or equal to 3 and less than or equal to 6.
Preferably, 4 bottom blowpipes are embedded in the refractory material main body.
Preferably, the bottom blowing pipe is embedded into the refractory main body perpendicular to the plane, or the bottom blowing pipe is embedded into the refractory main body at an included angle of 35 degrees with the plane, and the nozzles of the bottom blowing pipe face to the center direction of the ladle.
Preferably, the diameter of the bottom blowing pipe is between 2mm and 5 mm.
The utility model discloses beneficial effect includes: adopt the embodiment of the utility model provides an in bottom blowing agitating unit of production ferromanganese, reduction in production cost that can be by a wide margin improves production efficiency, safe and reliable, and the air flow at the bottom is controllable simultaneously, can accurately control the production rhythm, and the advantage of bottom blowing stirring is that the dynamics condition is superior, and is more weak to the resistant material erosion of ladle simultaneously, and reduction manganese sediment is efficient. Overcomes the defects of a shaking ladle method and a pouring ladle method, can accurately control the reaction speed of a slag-liquid interface by bottom blowing stirring, and simultaneously quickly reach the balance of the reaction. The method realizes higher reaction efficiency than a ladle shaking method or a ladle reversing method, saves power consumption, ensures that the reaction is closer to balance finally, has high alloy yield, and ensures that the mass fraction of manganese oxide in the final slag is far lower than that of the manganese oxide in the final slag of the ladle shaking method. The utility model discloses a two way valve frames designs can improve the security, and when the valve frame goes wrong all the way, another way valve frame can in time provide the air supply.
Drawings
FIG. 1 is a schematic structural view of a bottom-blowing stirring device for producing ferromanganese alloy in an embodiment of the present invention;
FIG. 2 is a schematic structural view of a cross section of the bottom (3 refractory bodies) of a ladle of a bottom-blowing stirring device for producing ferromanganese in an embodiment of the present invention;
FIG. 3 is a schematic structural view of a cross section of the bottom (6 refractory bodies) of a ladle of a bottom-blowing stirring device for producing ferromanganese in an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a bottom-blowing mechanism of a bottom-blowing stirring device for producing ferromanganese alloy according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a bottom-blowing mechanism of a bottom-blowing stirring device for producing ferromanganese alloy according to an embodiment of the present invention;
in the drawings: 1-main valve frame, 1' -standby valve frame, 2-bottom blowing mechanism, 3-steel ladle, 4-three-way switching valve and 5-gas conveying pipe; 11-a gas control mechanism, 12-an oxygen source and 13-an argon source; 111-pneumatic cut-off valve, 112-flowmeter, 113-regulating valve, 114-field pressure gauge and 115-pressure transmitter; 21-main body of refractory material, 22-bottom blowing pipe.
Detailed Description
In order to provide a realization scheme for reducing the production cost and improving the production efficiency, replacing a ladle shaking device and producing the medium-low carbon ferromanganese, the preferred embodiment of the utility model is explained by combining the attached drawings of the specification.
Referring to fig. 1, an embodiment of the present invention provides a bottom blowing stirring apparatus for producing ferromanganese, including: the device comprises a main valve frame 1, a standby valve frame 1', a bottom blowing mechanism 2, a steel ladle 3, a three-way switching valve 4 and a gas conveying pipe 5; an air supply pipe of the main valve frame 1 and an air supply pipe of the standby valve frame 1' are respectively connected with two inlets of a three-way switching valve 4, an outlet of the three-way switching valve 4 is connected with a bottom blowing mechanism 2 through an air conveying pipe 5, and the bottom blowing mechanism 2 is arranged at the bottom of a steel ladle 3; the main valve frame 1 comprises an oxygen gas circuit and an argon gas circuit, the tail end of the oxygen gas circuit and the tail end of the argon gas circuit are connected to a gas supply pipe which is connected to the main valve frame 1, and the spare valve frame 1' is identical to the main valve frame 1 in structure.
Specifically, the oxygen gas circuit comprises an oxygen source 12 and a gas control mechanism 11 thereof, the argon gas circuit comprises an argon gas source 13 and a gas control mechanism 11 thereof, and the gas control mechanism 11 comprises a pneumatic cut-off valve 111, a flowmeter 112, a regulating valve 113, a field pressure gauge 114 and a pressure transmitter 115 which are sequentially connected with the gas source. The pneumatic cut-off valve 111 in the oxygen gas circuit and the pneumatic cut-off valve 111 in the argon gas circuit are in interlocking control, and only one pneumatic cut-off valve 111 is in an open state.
The bottom of the ladle 3 is uniformly provided with a plurality of refractory material main bodies 21 embedded with bottom blowing pipes 22, and the number of the refractory material main bodies 21 is more than or equal to 3 and less than or equal to 6. The refractory body 21 is embedded with 4 bottom blowing pipes 22. The bottom blowing pipe 22 is embedded into the refractory main body 21 perpendicular to the plane, or the bottom blowing pipe 22 is embedded into the refractory main body 21 at an angle of 35 degrees with respect to the plane, and the nozzles of the bottom blowing pipe 22 face the central direction of the ladle 3. The diameter of the bottom blowing pipe 22 is between 2mm and 5 mm.
The structure and function of the bottom-blowing stirring device for producing ferromanganese alloy in the embodiment of the invention are described in detail below.
The utility model provides a bottom blowing agitating unit of production ferromanganese comprises bottom blowing air feed valve frame and bottom blowing mechanism 2, and bottom blowing air feed valve frame includes main valve frame 1 and is equipped with valve frame 1 ', and main valve frame 1 and be equipped with valve frame 1 ' and connect bottom blowing mechanism 2 through three-way switch valve 4, and remote control mechanism is on detecting the gas circuit of main valve frame 1 air feed, and when its manometer was less than the settlement threshold value, through three-way switch valve 4 switching to being equipped with on the gas feed gas circuit that valve frame 1 ' corresponds; the main valve frame 1 and the spare valve frame 1' both adopt two gas supply gas paths, the oxygen gas path and the argon gas path both consist of a pneumatic stop valve 111, a flowmeter 112, a regulating valve 113, a field pressure gauge 114 and a pressure transmitter 115, the components are sequentially connected by stainless steel pipes, the conversion of argon gas and oxygen gas is realized, the argon gas path and the oxygen gas path are combined at the outlet and then flow through a gas conveying pipe 5 through a three-way switching valve 4 to be connected to a bottom blowing pipe 22 of a bottom blowing mechanism 2, and the gas conveying pipe 5 is a metal hose. The bottom blowing mechanism 2 is arranged at the bottom of the ladle 3, the bottom blowing mechanism 2 comprises a plurality of refractory main bodies 21 distributed at the bottom of the ladle 3, and four bottom blowing pipes 22 are embedded in each refractory main body 21.
The bottom blowing stirring device for producing the ferromanganese alloy adopts the main and standby valve frames at first, realizes the supply of an uninterrupted air source, and reduces the production risk; two paths of gas sources are adopted on each valve frame, so that the switching between argon and oxygen is realized, and the types of bottom blowing gas sources are switched according to the production requirements; the solution can be directly stirred by a bottom blowing stirring method, the reaction efficiency is higher than that of a ladle shaking method, the power consumption is saved, the reaction is finally closer to balance, the alloy yield is high, and the mass fraction of manganese oxide in the final slag is far lower than that of the ladle shaking method; the carbon content in the alloy can be reduced by blowing in oxygen, and the inclusion content in the alloy can be effectively reduced by blowing in argon.
The argon gas path comprises a pneumatic cut-off valve 111, a flowmeter 112, a regulating valve 113, an on-site pressure gauge 114 and a pressure transmitter 115, the instruments are sequentially connected by a stainless steel pipe, and the gas flow direction is from the pneumatic cut-off valve 111 to the pressure transmitter 115. The oxygen gas circuit comprises a pneumatic stop valve 111, a flowmeter 112, a regulating valve 113, a field pressure gauge 114 and a pressure transmitter 115 which are sequentially connected by stainless steel pipes, the gas flow direction is from the pneumatic stop valve 111 to the pressure transmitter 115, and the two gas circuits are combined into one pipeline and then connected to the bottom blowing pipe 22 by a metal hose. Two paths of pneumatic cut-off valves 111 on the oxygen gas path and the argon gas path are in interlocking control, and when one valve is opened, the other valve is in a closed state. When the bottom-blowing stirring device works, when the main valve frame 1 supplies gas normally and argon gas needs to be blown in, the argon gas sequentially passes through the pneumatic stop valve 111, the flow meter 112, the regulating valve 113, the field pressure gauge 114 and the pressure transmitter 115 and finally enters a molten pool of a steel ladle 3 through the three-way switching valve 4. When oxygen is needed in smelting, the oxygen passes through a pneumatic cut-off valve 111, a flow meter 112, a regulating valve 113, a field pressure gauge 114 and a pressure transmitter 115 in sequence, finally enters a bottom blowing pipe 22 through a three-way switching valve 4, and finally enters a molten pool of a steel ladle 3. When the main valve frame 1 is short of air supply, the standby valve frame 1' supplies air, and the air supply process is also the air supply process.
The diameter of the bottom blowing pipe 22 is 2 mm-5 mm, and the gas backflow situation can not occur because the air pressure is always in the pipeline during production.
The utility model provides a bottom blowing agitating unit of production ferromanganese alloy adopts remote control system, has reduced the working strength who shakes package, ladle to ladle. The bottom of the steel ladle 3 is provided with a refractory material main body with 3-6 embedded bottom blowpipes 22 according to the size of the steel ladle 3, the refractory material main body is positioned at the vertex angle of a regular polygon, and 4 bottom blowpipes 22 are embedded in each refractory material. The bottom blowing tubes 22 may be arranged in a vertical plane or at an angle of 35 degrees to the horizontal plane, and the nozzles of the bottom blowing tubes 22 are all directed towards the center of the ladle 3, so as to keep the molten metal bath well stirred and promote good contact between the gas and the metal.
When the bottom-blowing stirring device is put into production, the flow rate is set in a computer system according to the process requirements, the regulating valve 113 opens a certain valve position according to the given flow rate, and the gas enters a molten pool of the ladle 3 through the bottom-blowing pipe 22.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. The utility model provides a bottom blowing agitating unit of production ferromanganese alloy which characterized in that includes: the device comprises a main valve frame, a standby valve frame, a bottom blowing mechanism, a steel ladle, a three-way switching valve and a gas conveying pipe; the air supply pipe of the main valve frame and the air supply pipe of the standby valve frame are respectively connected with two inlets of the three-way switching valve, an outlet of the three-way switching valve is connected with the bottom blowing mechanism through the air conveying pipe, and the bottom blowing mechanism is arranged at the bottom of the ladle; the main valve frame includes oxygen gas circuit and argon gas circuit, the end of oxygen gas circuit with the end-to-end connection of argon gas circuit is all connected the air supply pipe of main valve frame, be equipped with the valve frame with main valve frame structure is the same.
2. The bottom-blowing stirring device for producing ferromanganese alloy according to claim 1, wherein the oxygen gas circuit comprises an oxygen source and a gas control mechanism thereof, the argon gas circuit comprises an argon gas source and a gas control mechanism thereof, and the gas control mechanism comprises a pneumatic stop valve, a flow meter, a regulating valve, an on-site pressure gauge and a pressure transmitter which are sequentially connected with the gas source.
3. The bottom-blowing stirring device for producing ferromanganese alloy as recited in claim 2, wherein the pneumatic shut-off valve in the oxygen gas path and the pneumatic shut-off valve in the argon gas path are controlled in an interlocking manner, and only one of the pneumatic shut-off valves are in an open state.
4. The bottom-blowing stirring apparatus for manufacturing ferromanganese alloy according to claim 1, wherein a plurality of refractory bodies with embedded bottom-blowing pipes are uniformly arranged at the bottom of the ladle, and the number of the refractory bodies is 3 or more and 6 or less.
5. The bottom-blowing stirring device for producing ferromanganese alloy as claimed in claim 4, wherein 4 bottom-blowing pipes are embedded inside the refractory body.
6. The bottom-blowing stirring device for producing ferromanganese alloy as claimed in claim 5, wherein the bottom-blowing pipe is embedded in the refractory body perpendicular to the plane, or the bottom-blowing pipe is embedded in the refractory body at an angle of 35 degrees to the plane, and the nozzles of the bottom-blowing pipe face the center of the ladle.
7. The bottom-blowing stirring device for producing ferromanganese alloy as claimed in claim 5, wherein the diameter of the bottom-blowing pipe is between 2mm and 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020604763.8U CN213317658U (en) | 2020-04-21 | 2020-04-21 | Bottom blowing stirring device for producing ferromanganese |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020604763.8U CN213317658U (en) | 2020-04-21 | 2020-04-21 | Bottom blowing stirring device for producing ferromanganese |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213317658U true CN213317658U (en) | 2021-06-01 |
Family
ID=76058169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020604763.8U Active CN213317658U (en) | 2020-04-21 | 2020-04-21 | Bottom blowing stirring device for producing ferromanganese |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213317658U (en) |
-
2020
- 2020-04-21 CN CN202020604763.8U patent/CN213317658U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102010936B (en) | Process method for refining austenitic manganese steel by blowing argon gas into medium frequency induction furnace | |
| WO2021164543A1 (en) | Continuous smelting reduction ironmaking method | |
| CN105803155B (en) | A kind of Arc Furnace Steel-making Dephosphoration method | |
| CN110724784B (en) | Low-silicon high-phosphorus molten iron converter smelting method | |
| CN111254290A (en) | Full thermal state copper matte continuous converting method | |
| CN113136493A (en) | High-efficient dilution reduction device of nickel smelting sediment | |
| CN109468469A (en) | A kind of device and method of composite gas blowing carbon reducing and smelting copper ashes | |
| CN213317658U (en) | Bottom blowing stirring device for producing ferromanganese | |
| CN112266999A (en) | Energy-saving and efficient vanadium extraction process | |
| CN100507016C (en) | Air curtain skimming device for steel-making converter | |
| CN107779550B (en) | The method of molten steel manganeisen additional amount is reduced in a kind of refining process | |
| CN107287387B (en) | A kind of smelting process and a kind of AOD furnace of the steel containing Ti | |
| CN212102920U (en) | Multi-medium bottom-blown steel ladle | |
| CN209537582U (en) | A kind of bottom blowing stirring device producing manganese iron, ferrochrome | |
| CN214881767U (en) | High-efficient dilution reduction device of nickel smelting sediment | |
| CN109897972A (en) | A kind of short route copper smelting method suitable for middle and small scale | |
| CN216919360U (en) | Bottom blowing stirring equipment for producing ferromanganese alloy | |
| CN105219909B (en) | Molten iron desulfuring spray gun is directly blown for magnesium desulfurizer | |
| CN107779548B (en) | A kind of device and method of the side-blown injection refining of safe and efficient ladle | |
| CN100439517C (en) | Terminal low-oxygen control method for top bottom combined blowing converter | |
| CN113481381A (en) | Copper fire refining process based on carbon dioxide | |
| CN206438158U (en) | A kind of two step lead smelting process devices | |
| CN101603105A (en) | A kind of siphon tapping device for blast furnace ironmaking | |
| CN212375301U (en) | Fine ore flying melting reduction steel-making furnace | |
| CN220361982U (en) | Novel ladle for realizing automatic casting and self-guiding of molten steel without drainage sand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |