CN209162111U - A kind of converter Novel oxygen lance spray head - Google Patents
A kind of converter Novel oxygen lance spray head Download PDFInfo
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- CN209162111U CN209162111U CN201821891596.9U CN201821891596U CN209162111U CN 209162111 U CN209162111 U CN 209162111U CN 201821891596 U CN201821891596 U CN 201821891596U CN 209162111 U CN209162111 U CN 209162111U
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- spray
- converter
- aditus laryngis
- internal diameter
- head body
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Abstract
The utility model relates to converter technical fields, more particularly to a kind of converter Novel oxygen lance spray head, including head body, the head body is 12 ° there are four the angle α of the axis of spray-hole described in spray-hole and the head body axis along its circumferentially-spaced setting, the spray-hole includes the outlet for being set to the aditus laryngis of inside and being set to outside, the internal diameter of the spray-hole is gradually increased from aditus laryngis to outlet, the aditus laryngis end is H1 along the distance of head body axial direction to outlet end, the aditus laryngis internal diameter D1:H1=33:122, described aditus laryngis internal diameter D1: exit inside diameter D2=33:42.9.The utility model oxygen design discharge increases and converter oxygen supply time is reduced, and Converter production period shortens, while converter slugging and molten steel stirring are preferable；Only machining dimension is changed, is slightly changed in prior art basis, it is at low cost.
Description
Technical field
The utility model relates to converter technical field more particularly to a kind of converter Novel oxygen lance spray heads.
Background technique
Oxygen lance nozzle is the equipment for being blown into oxygen to molten steel in convertor steelmaking process, is to improve oxygen gas flow rate and changing
Become oxygen flow direction and design, main function is to be blown into the effects of oxygen carries out heating and dephosphorization into molten steel.
In the certain situation of oxygen manifold pressure, the aditus laryngis of oxygen lance nozzle and outlet diameter size determine oxygen flow velocity and
Flow direction, and the flow velocity of oxygen and flow direction play conclusive work to the stirring and converter slugging of molten steel in converter steelmaking process
With, while aditus laryngis size controls oxygen flow equally to control the converter smelting time.Throat diameter is smaller right with outlet diameter
Molten steel stirring is stronger, and iron oxide content declines in steel slag, is unfavorable for converter slugging and dephosphorization；And due to oxygen flow primary converter
The duration of heat extends, and the production cycle extends.
Based on the above considerations, the utility model devises a kind of converter Novel oxygen lance spray head.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of converter Novel oxygen lance spray head, can
Increase oxygen design discharge and converter oxygen supply time is reduced, Converter production period shortens.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model are as follows:
The utility model discloses a kind of converter Novel oxygen lance spray heads, including head body, and the head body is along its week
The angle α of the axis and the head body axis that are arranged at intervals with spray-hole described in four spray-holes upwards is 12 °, the spray
Perforation includes the outlet for being set to the aditus laryngis of inside and being set to outside, the internal diameter of the spray-hole from aditus laryngis to outlet gradually
Increase, the aditus laryngis end to outlet end along head body axial direction distance be H1, the aditus laryngis internal diameter D1:H1=33:122,
Described aditus laryngis internal diameter D1: exit inside diameter D2=33:42.9.
The outer wall of the head body is equipped with the external screw thread to match with internal screw thread on body of a gun inner wall, the body of a gun internal diameter
φ 3: the aditus laryngis internal diameter D1=134:33.
The utility model has the beneficial effects that:
1. the utility model oxygen design discharge increases and converter oxygen supply time is reduced, Converter production period shortens, simultaneously
Converter slugging is stirred preferable with molten steel；Only machining dimension is changed, is slightly changed in prior art basis,
It is at low cost.
Detailed description of the invention
Fig. 1 is the sectional view of the utility model.
In figure, 1 head body, 2 spray-holes, 21 aditus laryngis, 22 outlets, 3 body of a guies.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples:
Referring to Fig. 1.
The utility model discloses a kind of converter Novel oxygen lance spray head, including head body 1, the head body 1 is along it
There are four spray-hole 2, the angle α of the axis of the spray-hole 2 and 1 axis of head body is 12 ° for circumferentially-spaced setting,
The spray-hole 2 includes the outlet 22 for being set to the aditus laryngis 21 of inside and being set to outside, and the internal diameter of the spray-hole 2 is by larynx
Mouth 21 is gradually increased to outlet 22, and 21 end of aditus laryngis to 22 ends of outlet is H1 along the axial distance of head body 1, described
Aditus laryngis 21 internal diameter D1:H1=33:122, the 21 internal diameter D1 of aditus laryngis: 22 internal diameter D2=33:42.9 of outlet；This case is by increasing spray
The internal diameter of perforation 2, i.e. increase aditus laryngis 21 and the internal diameter of outlet 22, oxygen design discharge increases and converter oxygen supply time is reduced,
Converter production period shortens, while converter slugging and molten steel stirring are preferable；Only machining dimension is changed, in existing skill
It is slightly changed on the basis of art, it is at low cost.
The outer wall of the head body 1 is equipped with the external screw thread to match with internal screw thread on 3 inner wall of the body of a gun, the body of a gun 3
Internal diameter φ 3: the 21 internal diameter D1=134:33 of aditus laryngis is further determined that in aditus laryngis 21 convenient for the installation and removal of head body 1
Diameter and the increase numerical value for exporting 22 internal diameters.
Embodiment 1: the present embodiment is 60 tons of converters, 12 body of a gun middle layer pipe diameter of the body of a gun outer layer pipe diameter 219mm, Φ of Φ
The angle α of 3 body of a gun internal layer pipe diameter 134mm of 180mm, Φ, the axis of spray-hole 2 and 1 axis of head body is 12 °, d1
Aditus laryngis internal diameter 33mm, d2 exit inside diameter 42.9mm, H1 height 122mm, 4 hole of hole count, Mach number 2.0, design oxygen press 0.77MPa,
Design discharge 15545m3/h, converter oxygen supply time are 11 minutes；
Comparative example 1: converter is 60 tons, Φ 1 body of a gun outer layer pipe diameter 219mm, Φ 2 body of a gun middle layer pipe diameter 180mm, Φ 3
The angle α of body of a gun internal layer pipe diameter 134mm, the axis of spray-hole 2 and 1 axis of head body is 12 °, d1 aditus laryngis internal diameter
30.3mm, d2 exit inside diameter 39.3mm, H1 height 122mm, 4 hole of hole count, Mach number 2.0, design oxygen press 0.77MPa, design stream
13680m3/h is measured, converter oxygen supply time is 12.5 minutes.
It is compared by comparative example 1 and embodiment 1 it is found that embodiment 1 increases aditus laryngis 21 and exports 22 internal diameter, oxygen designs
Flow increases and converter oxygen supply time is reduced, and Converter production period shortens, while converter slugging and molten steel stirring are preferable；It is only right
Machining dimension changes, and slightly changes in prior art basis, at low cost.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in relevant technical field,
It is also included in the patent protection scope of the utility model.
Claims (2)
1. a kind of converter Novel oxygen lance spray head, it is characterised in that: including head body (1), the head body (1) is along its week
Four spray-holes (2) are arranged at intervals with upwards, the angle α of the axis and the head body (1) axis of the spray-hole (2) is
12 °, the spray-hole (2) includes the outlet (22) for being set to the aditus laryngis (21) of inside and being set to outside, the spray-hole
(2) internal diameter is gradually increased from aditus laryngis (21) to outlet (22), and aditus laryngis (21) end to outlet (22) end is along spray head sheet
The distance of body (1) axial direction is H1, aditus laryngis (21) internal diameter D1:H1=33:122, aditus laryngis (21) the internal diameter D1: outlet (22)
Internal diameter D2=33:42.9.
2. a kind of converter Novel oxygen lance spray head according to claim 1, it is characterised in that: outside the head body (1)
Wall is equipped with the external screw thread to match with internal screw thread on the body of a gun (3) inner wall, the body of a gun (3) the internal diameter φ 3: in the aditus laryngis (21)
Diameter D1=134:33.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821891596.9U CN209162111U (en) | 2018-11-16 | 2018-11-16 | A kind of converter Novel oxygen lance spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821891596.9U CN209162111U (en) | 2018-11-16 | 2018-11-16 | A kind of converter Novel oxygen lance spray head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209162111U true CN209162111U (en) | 2019-07-26 |
Family
ID=67338694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821891596.9U Active CN209162111U (en) | 2018-11-16 | 2018-11-16 | A kind of converter Novel oxygen lance spray head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209162111U (en) |
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2018
- 2018-11-16 CN CN201821891596.9U patent/CN209162111U/en active Active
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