CN213203105U - Water-cooling converter mouth - Google Patents
Water-cooling converter mouth Download PDFInfo
- Publication number
- CN213203105U CN213203105U CN202021632329.7U CN202021632329U CN213203105U CN 213203105 U CN213203105 U CN 213203105U CN 202021632329 U CN202021632329 U CN 202021632329U CN 213203105 U CN213203105 U CN 213203105U
- Authority
- CN
- China
- Prior art keywords
- section
- water
- mouth
- steel pipe
- cooling
- 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
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses a water-cooling converter mouth belongs to cast iron water-cooling converter mouth and makes technical field, be the water-cooling steel pipe, four sections screw-thread steel, screw that the dysmorphism was arranged and be used for the fixing bolt of fixed mouth of a furnace body including the mouth of a furnace body that divide into four sections, the water-cooling steel pipe includes 4 ripple sections of inlet tube, outlet pipe and symmetrical structure, and at the position water-cooling steel pipe shrink of the big or small face line of falling the sediment of mouth body, the copper wire, two ripple section crests in the centre highly are less than the height of two ripple section crests in both ends. The utility model can increase the inner diameter of the converter mouth from 2370mm to 2600mm by changing the shape and the arrangement mode of the water-cooling steel pipe, and can meet the size requirement of using a large steel scrap hopper and a tank bottom molten iron tank nozzle to stretch into; not only can meet the requirement of the cooling strength of the furnace mouth, but also can avoid water leakage caused by burning loss of the furnace mouth after passing steel.
Description
Technical Field
The utility model belongs to the technical field of cast iron water-cooling converter fire door manufacturing technology and specifically relates to a water-cooling converter fire door.
Background
The steel-making converter body is generally composed of a furnace cap, a furnace shell (furnace body) and a furnace bottom 3, and a circular furnace mouth is arranged at the top of the furnace cap for facilitating feeding, inserting oxygen lances, discharging furnace gas and deslagging during the operation of the converter. During steel making, the temperature in the furnace is above 1600 ℃. In order to prolong the service life of the metal shell of the furnace cap and the furnace lining, a water-cooling furnace mouth which is forcibly cooled by circulating water is adopted. Its advantages are less adhesive on furnace mouth, easy cleaning, high rigidity of furnace mouth, less deformation of furnace mouth, and long service life of metal shell and furnace liner.
The split combined type buried pipe casting furnace mouth is formed by four parts into a whole as shown in figure 4; the furnace mouth has the following problems that firstly, the inner diameter of the furnace mouth is only 2370mm, and the size is small; secondly, the water-cooled steel pipe is easy to be burnt and damaged and leak water, the repair is difficult, and potential safety hazards exist when the operation is improper.
In order to increase the adding amount of the converter scrap steel, a hot metal ladle is used to the bottom of the converter, a large scrap steel hopper needs to be used instead, slag adhered to a furnace mouth is frequently cleaned, the risk of steel passing through the furnace mouth is increased, and a split combined type buried pipe casting furnace mouth structure needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a water-cooling converter fire door is provided, through the shape and the arrangement mode that change the water-cooling steel pipe, can increase the internal diameter of converter fire door to 2600mm by 2370mm, can satisfy the dimensional requirement that uses big steel scrap fill, a jar molten iron jar mouth on earth to stretch into, and can satisfy fire door cooling strength and mechanical strength's requirement, can avoid again that the steel burns out the fire door and causes and leak.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a water-cooling converter fire door, is this internal water-cooling steel pipe, four sections screw-thread steel, screw of the cast-in fire door that dysmorphism was arranged and is used for the fixing bolt of fixed fire door body including the fire door body, the four sections that divide into the four sections, the water-cooling steel pipe includes 4 ripple sections of inlet tube, outlet pipe and symmetrical structure, falls the slag line at fire door body size face, falls the position water-cooling steel pipe shrink of copper wire, and two ripple section crest heights in the middle of are less than the height of two ripple section crests in both ends.
The utility model discloses technical scheme's further improvement lies in: an included angle theta 1 between the central line of the water inlet of the water-cooled steel pipe and the central line of the rising section of the first corrugated section is smaller than an included angle theta 2 between the central line of the falling section of the first corrugated section and the central line of the rising section of the second corrugated section; an included angle theta 2 between the center line of the falling section of the first corrugated section and the center line of the rising section of the second corrugated section is smaller than an included angle theta 3 between the center line of the falling section of the second corrugated section and the center line of the rising section of the third corrugated section; an included angle gamma 1 between the central line of the rising section of the first corrugated section and the central line of the falling section is smaller than an included angle gamma 2 between the central line of the rising section of the second corrugated section and the central line of the falling section; namely theta 1 ‹ theta 2 ‹ theta 3; γ 1 ‹ γ 2.
The utility model discloses technical scheme's further improvement lies in: specifically, the method comprises the following steps: θ 1=32.9 °, θ 2=51.3 °, θ 3=95.5 °, γ 1=32.8 °, and γ 2=54.9 °.
The utility model discloses technical scheme's further improvement lies in: the distance L between the water inlet and the water outlet of the water-cooled steel pipe and the seam of the furnace mouth body is 100 mm.
The utility model discloses technical scheme's further improvement lies in: the length of each section of water-cooled steel pipe is 5.7 m.
The utility model discloses technical scheme's further improvement lies in: the water-cooled steel pipe was made of phi 60 × 8mm No. 20 seamless steel pipe.
The utility model discloses technical scheme's further improvement lies in: the screws comprise countersunk head screws and lifting ring screws; the screw sets up 3 on every section fire door body, and the trough department that is close to first ripple section and fourth ripple section on the fire door department slag pouring line respectively sets up 1, and another sets up the outer end between the crest of second ripple section and third ripple section.
The utility model discloses technical scheme's further improvement lies in: the number of the fixing bolts is 6 at each section of the furnace mouth body, and the fixing bolts are uniformly distributed at the outer end of the furnace mouth body.
The utility model discloses technical scheme's further improvement lies in: the angle alpha between the screw at the outer end between the wave crests of the second wave section and the third wave section and the seam of the furnace opening body is 45 degrees.
The utility model discloses technical scheme's further improvement lies in: the angle beta of the joint of the bolts arranged at the wave troughs of the first wave section and the fourth wave section on the slag pouring line close to the furnace mouth and the furnace mouth body is 16.7 degrees.
Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:
1. the utility model discloses a change the shape and the arrangement of water-cooling steel pipe, can increase the internal diameter of converter fire door to 2600mm by 2370mm, can satisfy the dimensional requirement that uses big steel scrap fill, a jar molten iron jar mouth on earth to stretch into.
2. The utility model discloses increase the size of water-cooling steel pipe apart from the fire door inner wall by 130mm for 270mm, be the dysmorphism and arrange, the big or small face of fire door is fallen the slag line, is fallen the position water-cooling steel pipe shrink of copper wire, and other position water-cooling steel pipe positions are unchangeable, can satisfy the requirement of fire door cooling strength, can avoid again that the steel burns out the fire door and causes to leak.
3. The utility model discloses a change the shape and the arrangement of water-cooling steel pipe, avoided the fire door to burn easily, leak, repaired the difficulty, there is the problem of potential safety hazard when the operation is improper, the effectual security performance that improves the converter fire door.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the rotation of the present invention A-A;
FIG. 3 is a schematic view of the water-cooled steel pipe of the present invention;
FIG. 4 is a schematic view of a conventional water-cooled converter mouth.
The steel slag pouring device comprises a furnace mouth body 1, a furnace mouth body 2, a water-cooled steel pipe 3, deformed steel bars 4, countersunk head screws 5, lifting ring screws 6, a slag pouring line 7 and a steel pouring line.
Detailed Description
The utility model discloses a to among the prior art fire door internal diameter less, the water-cooling steel pipe burns out easily, leaks, repairs the difficulty, exists the potential safety hazard at that time in the operation and a water-cooling converter fire door of research and development.
The following figures illustrate the present invention in further detail:
as shown in fig. 1 and 2, a water-cooled converter mouth comprises a mouth body 1 divided into four sections, a water-cooled steel pipe 2 arranged in a special-shaped manner in the mouth body 1, four sections of deformed steel bars 3, screws 4 and fixing bolts 5 for fixing the mouth body 1, and is characterized in that: the water-cooling steel pipe 2 comprises a water inlet pipe, a water outlet pipe and 4 corrugated sections with symmetrical structures, the water-cooling steel pipe 2 shrinks at the positions of the slag pouring line 6 and the steel wire 7 on the large and small surface of the furnace mouth body 1, and the heights of the two corrugated section wave crests in the middle are smaller than those of the two corrugated section wave crests at two ends.
As shown in fig. 3, an included angle theta 1 between the central line of the water inlet of the water-cooled steel pipe 2 and the central line of the rising section of the first corrugated section is smaller than an included angle theta 2 between the central line of the falling section of the first corrugated section and the central line of the rising section of the second corrugated section; an included angle theta 2 between the center line of the falling section of the first corrugated section and the center line of the rising section of the second corrugated section is smaller than an included angle theta 3 between the center line of the falling section of the second corrugated section and the center line of the rising section of the third corrugated section; the included angle gamma 1 between the central line of the rising section of the first corrugated section and the central line of the falling section is smaller than the included angle gamma 2 between the central line of the rising section of the second corrugated section and the central line of the falling section. Namely theta 1 ‹ theta 2 ‹ theta 3; the cooling structure comprises gamma 1 ‹ gamma 2, specifically, theta 1=32.9 degrees, theta 2=51.3 degrees, theta 3=95.5 degrees, gamma 1=32.8 degrees and gamma 2=54.9 degrees, and the mechanical strength requirement of the water-cooled steel pipe is guaranteed due to the arrangement of the angles, and meanwhile, the cooling effect can be met.
The distance L between the water inlet and the water outlet of the water-cooled steel pipe 2 and the seam of the furnace mouth body 1 is 100 mm. The water inlet and outlet of the water-cooling steel pipe 2 can be facilitated.
The length of each section of water-cooled steel pipe 2 is 5.7 m. This length can meet the cooling strength requirements.
The water-cooled steel pipe 2 was made of phi 60 × 8mm 20# seamless steel pipe. Can meet the requirement of mechanical strength and is not easy to leak water. Carrying out a hydraulic test on the water-cooled steel pipe 2 in the cast-in furnace mouth body 1 before and after casting, wherein the test pressure is 1.5Mpa, and the pressure is maintained for 15 minutes without leakage; the casting must not have defects such as cracks.
The screws 4 comprise countersunk head screws and lifting ring screws, and the countersunk head screws and the lifting ring screws are matched for use when the furnace mouth body 1 is hoisted. The screw 4 sets up 3 on every section fire door body 1, and the trough department of first ripple section and fourth ripple section respectively sets up 1 on the slag line 6 of falling near the fire door, and another sets up the outer end between the crest of second ripple section and third ripple section. This setting can guarantee the stability when the furnace mouth body 1 hoists, is convenient for install furnace mouth body 1 on the stove cap.
The number of the fixing bolts 5 is 6 on each section of the furnace mouth body 1, and the fixing bolts are uniformly distributed at the outer end of the furnace mouth body 1. The arrangement can ensure that the furnace mouth is stably and reliably arranged on the furnace cap of the converter.
The angle alpha between the screw 4 arranged at the outer end between the wave crests of the second wave section and the third wave section and the seam of the furnace mouth body 1 is 45 degrees.
The angle beta of the joint of the screw 4 arranged at the wave trough of the first wave section and the fourth wave section on the slag pouring line 6 close to the furnace mouth and the furnace mouth body 1 is 16.7 degrees.
According to the structure, the cooling effect can be ensured by calculating the cooling strength and the mechanical strength of the furnace mouth of the water-cooling converter.
To sum up, the utility model can increase the inner diameter of the converter mouth from 2370mm to 2600mm by changing the shape and arrangement of the water-cooling steel pipe, and can meet the size requirement of the large steel scrap hopper and the bottom molten iron tank mouth extending into the converter mouth; not only can meet the requirement of the cooling strength of the furnace mouth, but also can avoid water leakage caused by burning loss of the furnace mouth after passing steel.
Claims (10)
1. The utility model provides a water-cooling converter fire door, is water-cooling steel pipe (2), four sections screw-thread steel (3), screw (4) and be used for fixing bolt (5) of fire door body (1) in cast-in fire door body (1) that the dysmorphism was arranged including being divided into four sections fire door body (1), four sections, its characterized in that: the water-cooling steel pipe (2) comprises a water inlet pipe, a water outlet pipe and 4 corrugated sections with symmetrical structures, the water-cooling steel pipe (2) shrinks at the positions of a slag pouring line (6) and a steel pouring line (7) on the large and small surfaces of the furnace mouth body (1), and the heights of the wave crests of the two corrugated sections in the middle are smaller than those of the wave crests of the two corrugated sections at two ends.
2. The water-cooled converter mouth of claim 1, wherein: an included angle theta 1 between the central line of the water inlet of the water-cooled steel pipe (2) and the central line of the rising section of the first corrugated section is smaller than an included angle theta 2 between the central line of the falling section of the first corrugated section and the central line of the rising section of the second corrugated section; an included angle theta 2 between the center line of the falling section of the first corrugated section and the center line of the rising section of the second corrugated section is smaller than an included angle theta 3 between the center line of the falling section of the second corrugated section and the center line of the rising section of the third corrugated section; an included angle gamma 1 between the central line of the rising section of the first corrugated section and the central line of the falling section is smaller than an included angle gamma 2 between the central line of the rising section of the second corrugated section and the central line of the falling section; namely theta 1 ‹ theta 2 ‹ theta 3; γ 1 ‹ γ 2.
3. The water-cooled converter mouth of claim 2, wherein: specifically, the method comprises the following steps:
θ1=32.9º，θ2=51.3º，θ3=95.5º，γ1=32.8º，γ2=54.9º。
4. the water-cooled converter mouth of claim 1, wherein: the distances L between the water inlet and the water outlet of the water-cooled steel pipe (2) and the seam of the furnace mouth body (1) are all 100 mm.
5. The water-cooled converter mouth of claim 1, wherein: the length of each section of water-cooled steel pipe (2) is 5.7 m.
6. The water-cooled converter mouth of claim 1, wherein: the water-cooled steel pipe (2) was made of phi 60 × 8mm No. 20 seamless steel pipe.
7. The water-cooled converter mouth of claim 1, wherein: the screw (4) includes countersunk head screw and eyebolt, and screw (4) set up 3 on every section fire door body (1), are close to the trough department of first ripple section and fourth ripple section on fire door department slag pouring line (6) and respectively set up 1, and 1 sets up the outer end between the crest of second ripple section and third ripple section in addition.
8. The water-cooled converter mouth of claim 1, wherein: the number of the fixing bolts (5) is 6 on each section of the furnace mouth body (1), and the fixing bolts are uniformly distributed at the outer end of the furnace mouth body (1).
9. The water-cooled converter mouth of claim 7, wherein: the angle alpha between the screw (4) arranged at the outer end between the wave crests of the second wave section and the third wave section and the seam of the furnace mouth body (1) is 45 degrees.
10. The water-cooled converter mouth of claim 7, wherein: the angle beta of the joint of the screw (4) arranged at the wave trough of the first wave section and the fourth wave section on the slag pouring line (6) close to the furnace mouth and the furnace mouth body (1) is 16.7 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021632329.7U CN213203105U (en) | 2020-08-07 | 2020-08-07 | Water-cooling converter mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021632329.7U CN213203105U (en) | 2020-08-07 | 2020-08-07 | Water-cooling converter mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213203105U true CN213203105U (en) | 2021-05-14 |
Family
ID=75837803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021632329.7U Active CN213203105U (en) | 2020-08-07 | 2020-08-07 | Water-cooling converter mouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213203105U (en) |
-
2020
- 2020-08-07 CN CN202021632329.7U patent/CN213203105U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1246662C (en) | Water-cooling panel for furnace wall and furnace cover of arc furnace | |
| CN213203105U (en) | Water-cooling converter mouth | |
| CN206330432U (en) | It is a kind of to eliminate the process structure that Mialz lime kiln runs wind | |
| CN107805679B (en) | A kind of blast-furnace tuyere burn after rapid plugging method | |
| CN203605217U (en) | CFB (circulating fluidized bed) boiler slag discharging device for burning coal gangue | |
| CN1721555A (en) | Metallurgical vessel | |
| CN106119536B (en) | A kind of cooling equipment of manganese oxide powder | |
| CN208139860U (en) | metallurgical furnace flue | |
| CN2217174Y (en) | Fluidised bed cooling dross device | |
| CN2808925Y (en) | Electric furnace wall oxygen lance fireproof sleeve | |
| CN203687585U (en) | Vertical continuous aluminum smelting furnace | |
| CN1535320A (en) | Shaft furnace-use stave cooler | |
| CN201560196U (en) | Blast-furnace novel tuyere-belt cooling wall | |
| CN109883203A (en) | Mineral hot furnace water cooled cover | |
| CN207501653U (en) | A kind of electric arc furnaces for being equipped with L-type water cooled furnace wall | |
| CN219546999U (en) | Converter structure for iron and steel smelting | |
| CN216073898U (en) | Water tank pipe network at converter mouth | |
| CN211651246U (en) | Square-round copper water jacket for side-blown furnace flue | |
| CN207939785U (en) | A kind of mineral hot furnace copper pressure rings | |
| CN219828822U (en) | Double expansion joint type cracking-preventing slag discharging pipe structure | |
| CN221051904U (en) | Device for preventing sleeve from tilting upwards in tuyere | |
| CN216192472U (en) | Sectional type composite desulfurization spray gun | |
| CN215628110U (en) | RH vacuum refining stove dip pipe | |
| CN215446493U (en) | Integrally cast slag falling pipe for power plant boiler | |
| CN204939507U (en) | Blast furnace bottom bilge construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |