CN113637934B - Auxiliary device and method for manufacturing annular overflow furnace nose - Google Patents

Auxiliary device and method for manufacturing annular overflow furnace nose Download PDF

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Publication number
CN113637934B
CN113637934B CN202110828220.3A CN202110828220A CN113637934B CN 113637934 B CN113637934 B CN 113637934B CN 202110828220 A CN202110828220 A CN 202110828220A CN 113637934 B CN113637934 B CN 113637934B
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Prior art keywords
tundish
auxiliary device
furnace nose
overflow
manufacturing
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CN202110828220.3A
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CN113637934A (en
Inventor
李良洪
刘傲
王育林
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Wuhan Iron and Steel Co Ltd
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Wuhan Iron and Steel Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention provides an auxiliary device and a method for manufacturing an annular overflow furnace nose, wherein the auxiliary device comprises a support frame, a tundish bearing frame and a zinc pump positioning plate, the support frame is of a frame structure composed of a base, upright posts and cross beams, a platform and connecting beams are horizontally arranged on the upright posts at intervals from top to bottom, the top end of the tundish bearing frame is fixed on the upright posts, a bracket is arranged at the bottom end of the tundish bearing frame and used for bearing the tundish, and the zinc pump positioning plate is respectively fixed at the left side end and the right side end of the connecting beams.

Description

Auxiliary device and method for manufacturing annular overflow furnace nose
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to an auxiliary device and method for manufacturing an annular overflow furnace nose.
Background
From the development of automobile plates, zinc ash defects produced by hot galvanizing are gradually revealed, the surface quality of the automobile plates is high, the production of defect-free O5 plates is required, and research and a series of measures are started to be taken for solving. In the production of high-grade galvanized automobile sheets, the traditional slag discharging furnace nose is difficult to timely discharge fine zinc ash due to insufficient overflow mobility of zinc liquid on two sides and the lower surface of strip steel, so that zinc ash defects such as slag are generated, and the situation is particularly prominent in the production of wide-width galvanized sheets, so that an annular overflow (double-sided overflow) furnace nose is generated. The furnace nose zinc liquid has good fluidity and ash discharge effect, and has good effects of improving the quality of the wide hot galvanizing GI outer plate and reducing the defect of zinc ash slag. In order to facilitate on-line position adjustment, the annular overflow (double-sided overflow) furnace nose is generally in a split structure, and a cofferdam structure capable of adjusting the plane precision of an overflow lip is connected to the lower part of the furnace nose body, namely a furnace nose tundish. The middle ladle is a cofferdam structure formed by thin plates and is used for isolating the liquid level inside and outside the zinc pot, and when the zinc pump works, the liquid level zinc in the zinc pot overflows into the annular groove and is discharged into the zinc pot outside along with the zinc pump. The tundish is connected with the furnace nose body through four studs, so that the positions of the tundish and the zinc pump and the positions of the outlets of the pipelines of the tundish are unified.
The annular overflow furnace nose has higher requirements on the stability and uniformity of the zinc liquid flow at two sides of the strip steel, the general fluctuation cannot be more than 1mm, otherwise, the overflow ash discharge cannot meet the requirements. The overflow precision of the furnace nose is closely related to the manufacturing precision of the tundish, and how to ensure the flatness of the lip of the tundish and the position degree of the zinc pump has important effects on improving the overflow precision of the furnace nose and the interchangeability of the tundish. Therefore, research on the manufacturing method of the annular overflow furnace nose has important significance for improving the quality of annular overflow (double-sided overflow) of the furnace nose and improving the ash discharge effect of the tundish overflow.
Disclosure of Invention
The invention aims to solve the technical problems by providing an auxiliary device and method for manufacturing an annular overflow furnace nose, which are used for improving the annular overflow (double-sided overflow) quality of the furnace nose and improving the overflow ash discharging effect of a tundish.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an auxiliary device for making of annular overflow stove nose, its characterized in that includes support frame, middle package carrier frame and zinc pump locating plate, the support frame comprises base, stand and crossbeam, platform and tie-beam are installed from last interval level down on the stand, middle package carrier frame top is fixed in on the stand, and the bottom is equipped with the bracket for bear middle package, zinc pump locating plate is fixed in respectively the left and right sides end of tie-beam.
According to the scheme, the tundish bearing frame consists of the front inclined rod, the rear inclined rod and the middle rod, the tops of the front inclined rod and the rear inclined rod are connected through the connecting plate and fixed on the upright post, and the bracket is fixed on one middle rod at the bottom.
According to the scheme, the bracket comprises an adjusting screw and a supporting plate, and the bottom of the adjusting screw penetrates through the middle rod to be connected with the supporting plate.
According to the scheme, two connecting bolt holes are symmetrically formed in the zinc pump positioning plate.
According to the scheme, the inclined supporting rod is arranged between the upright post and the base, and the inclination angle of the supporting rod is the same as the oblique angle of the tundish.
According to the scheme, the bottom of the front inclined rod is provided with the compression bolt corresponding to the tundish.
According to the scheme, the inclination angles of the front inclined rod and the rear inclined rod are the same as the inclined angle of the tundish.
An auxiliary method for manufacturing a ring-shaped overflow furnace nose is characterized by comprising the following steps:
placing the tundish body on a bracket, adjusting the levelness of the lip of the overflow groove of the tundish through an adjusting screw, and locking the adjusting screw after leveling; and then the zinc pump bracket is arranged on the positioning plates at two sides of the connecting beam, and the zinc pump pipeline interface is adjusted and connected with the outlet of the tundish.
The beneficial effects of the invention are as follows: the auxiliary device and the method for manufacturing the annular overflow furnace nose are provided, an auxiliary processing detection method is adopted, the lip flatness of the tundish and the position degree of the zinc pump are guaranteed, the manufacturing quality of the tundish can be effectively controlled, the installation precision is guaranteed, the interchangeability of spare parts is improved, and the auxiliary device and the method have important significance for improving the overflow precision of the furnace nose, promoting the ash discharge effect and reducing the zinc ash defect improvement rate of the outer plate of the automobile.
Drawings
Fig. 1 is an isometric view of one embodiment of the invention.
Fig. 2 is a front view of an embodiment of the present invention.
Fig. 3 is a side view of one embodiment of the present invention.
Fig. 4 is a top view of one embodiment of the present invention.
Detailed Description
For a better understanding of the present invention, reference is made to the following description of the invention taken in conjunction with the accompanying drawings and examples.
As shown in fig. 1-4, an auxiliary device for manufacturing a ring-shaped overflow furnace nose comprises a supporting frame 1, a tundish bearing frame 2 and a zinc pump positioning plate 3, wherein the supporting frame is formed by a base 4, an upright post 5 and a cross beam 6, a platform 7 and a connecting beam 8 are horizontally arranged on the upright post at intervals from top to bottom, the platform is convenient for construction, the top end of the tundish bearing frame is fixed on the upright post, a bracket 9 is arranged at the bottom end of the tundish bearing frame and is used for bearing a tundish 10, and the zinc pump positioning plate is respectively fixed at the left side end and the right side end of the connecting beam.
The tundish bearing frame consists of a front inclined rod 11, a rear inclined rod 12 and a middle rod 13, wherein the tops of the front inclined rod and the rear inclined rod are connected through a connecting plate 14 and are fixed on a stand column, and a bracket is fixed on one middle rod at the bottom. The inclination angle of the front inclined rod and the rear inclined rod is the same as the inclined angle of the tundish.
The bracket comprises an adjusting screw 15 and a supporting plate 16, and the bottom of the adjusting screw passes through the middle rod to be connected with the supporting plate.
The bottom of the front inclined rod is provided with a compression bolt 17 corresponding to the tundish. After the tundish is mounted on the supporting plate, the tundish is compressed by the adjusting compression bolt, so that the mounting stability of the tundish is improved.
Two connecting bolt holes 18 are symmetrically arranged on the zinc pump positioning plate and matched with the screw on the zinc pump bracket, so that the zinc pump is convenient to install, and the installation position of the zinc pump can be adjusted.
Because the position of the tundish zinc pump cannot be changed in actual operation, the position of the tundish zinc pump is required to be interchangeable in manufacturing. When the device is designed, the screws of the zinc pumps at the two ends are fixed by the positioning plates and are connected by the connecting beams, the outlet position and the inlet position of the zinc pump of the tundish are fixed, and the position of the zinc pump on the tundish can be accurately controlled by adjusting the connecting position of the zinc pipe 19.
An inclined supporting rod 20 is arranged between the upright post and the base, and the inclination angle of the supporting rod is the same as the oblique angle of the tundish. After the tundish is mounted on the bracket, the rear end face is abutted against the supporting rod, and the supporting rod supports the tundish to ensure the mounting stability of the tundish.
An auxiliary method for manufacturing a circular overflow furnace nose, comprising the following steps:
placing the tundish body on a bracket, adjusting the levelness of the lip of the overflow groove of the tundish through an adjusting screw, and locking the adjusting screw after leveling; and then the zinc pump bracket is arranged on the positioning plates at two sides of the connecting beam, and the zinc pump pipeline interface is adjusted and connected with the outlet of the tundish. The manufactured tundish is completely consistent with the working condition of field use, so that the accuracy requirement of the lip of the tundish is met, and the interchangeability requirement of field spare parts can be met.
The invention is illustrated by the above examples and is not limited to the embodiments of the invention, and the structure, positioning and connection of the components may vary. On the basis of the present technology, all changes or equivalent changes to the individual components according to the principles of the present invention should not be excluded from the protection scope of the present invention.

Claims (8)

1. The utility model provides an auxiliary device for making of annular overflow stove nose, its characterized in that includes support frame, middle package carrier frame and zinc pump locating plate, the support frame comprises base, stand and crossbeam, platform and tie-beam are installed from last interval level down on the stand, middle package carrier frame top is fixed in on the stand, and the bottom is equipped with the bracket for bear middle package, zinc pump locating plate is fixed in respectively the left and right sides end of tie-beam.
2. An auxiliary device for manufacturing a ring-shaped overflow furnace nose according to claim 1, wherein the tundish carrier frame is composed of front and rear diagonal bars and a middle bar, the tops of the front and rear diagonal bars are connected by a connecting plate and fixed on the upright, and the bracket is fixed on one middle bar at the bottom.
3. An auxiliary device for the manufacture of a ring overflow furnace nose according to claim 2, characterized in that the bracket comprises an adjusting screw and a pallet, the adjusting screw bottom being connected to the pallet through the intermediate rod.
4. An auxiliary device for manufacturing an annular overflow furnace nose according to claim 1 or 3, wherein two connecting bolt holes are symmetrically formed in the zinc pump positioning plate.
5. An auxiliary device for manufacturing a ring-shaped overflow furnace nose according to claim 3, wherein an inclined supporting rod is arranged between the upright post and the base, and the inclined angle of the supporting rod is the same as the inclined angle of the tundish.
6. An auxiliary device for the manufacture of a ring overflow furnace nose according to claim 3 or 5, characterized in that the bottom of the front diagonal is provided with a compression bolt corresponding to the tundish.
7. An auxiliary device for manufacturing a ring overflow furnace nose according to claim 6, wherein the inclination angle of the front and rear diagonal bars is the same as the inclination angle of the tundish.
8. An auxiliary method for manufacturing a ring-shaped overflow furnace nose is characterized by comprising the following steps:
placing the tundish body on a bracket, adjusting the levelness of the lip of the overflow groove of the tundish through an adjusting screw, and locking the adjusting screw after leveling; and then the zinc pump bracket is arranged on the positioning plates at two sides of the connecting beam, and the zinc pump pipeline interface is adjusted and connected with the outlet of the tundish.
CN202110828220.3A 2021-07-22 2021-07-22 Auxiliary device and method for manufacturing annular overflow furnace nose Active CN113637934B (en)

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CN113637934B true CN113637934B (en) 2023-06-27

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115584457A (en) * 2022-09-30 2023-01-10 武汉钢铁有限公司 Annular overflow device and method for closed-loop control of zinc addition through internal liquid level measurement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05239608A (en) * 1992-02-27 1993-09-17 Sumitomo Metal Ind Ltd Manufacture of galvanized steel sheet and device therefor
CN109988986A (en) * 2017-12-31 2019-07-09 上海东新冶金技术工程有限公司 Furnace nose and its application method of the hot galvanizing with movable scum pipe structure
CN111893414A (en) * 2020-04-30 2020-11-06 武汉钢铁有限公司 Furnace nose annular overflow device of hot coating production line
DE102019206609A1 (en) * 2019-05-08 2020-11-12 Severstal Method and device for rinsing an overflow chamber at the bath-side end of a trunk of a device for hot-dip coating

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05239608A (en) * 1992-02-27 1993-09-17 Sumitomo Metal Ind Ltd Manufacture of galvanized steel sheet and device therefor
CN109988986A (en) * 2017-12-31 2019-07-09 上海东新冶金技术工程有限公司 Furnace nose and its application method of the hot galvanizing with movable scum pipe structure
DE102019206609A1 (en) * 2019-05-08 2020-11-12 Severstal Method and device for rinsing an overflow chamber at the bath-side end of a trunk of a device for hot-dip coating
CN111893414A (en) * 2020-04-30 2020-11-06 武汉钢铁有限公司 Furnace nose annular overflow device of hot coating production line

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