CN104947017A - Furnace nose used for hot galvanizing and provided with ring-shaped slagging structure and using method of furnace nose - Google Patents
Furnace nose used for hot galvanizing and provided with ring-shaped slagging structure and using method of furnace nose Download PDFInfo
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- CN104947017A CN104947017A CN201410358191.9A CN201410358191A CN104947017A CN 104947017 A CN104947017 A CN 104947017A CN 201410358191 A CN201410358191 A CN 201410358191A CN 104947017 A CN104947017 A CN 104947017A
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Abstract
The invention relates to the field of alloy hot-dip galvanizing processes and equipment used in the same and in particular relates to a furnace nose used for hot galvanizing and provided with a ring-shaped slagging structure and a using method of the furnace nose. The furnace nose comprises a furnace nose body (1) and is characterized by also comprising a slagging barrel (2), ring-shaped bottom plates (3), slagging pipes (4), zinc pumps (5) and molten zinc discharge pipes (6), wherein the slagging barrel (2) is sleeved with the lower half part of the inner cavity of the furnace nose body (1) to form a slagging hopper (11); at least two slagging pipes (4) are arranged at the bottoms of the side walls of the furnace nose body (1); the zinc pumps (5) are arranged at the outlet ends of the slagging pipes (4); liquid pumping openings of the zinc pumps (5) are formed at the outlet ends of the slagging pipes (4). The using method of the furnace nose comprises the following steps in sequence: immersing the furnace nose in molten zinc and starting the zinc pumps to circulate the molten zinc and discharge the slag. The furnace nose has the beneficial effects of good slagging effects, high galvanizing quality and convenience in operation.
Description
Technical field
The present invention relates to hot dip galvanized zinc alloy technique and apparatus field used thereof, be specially stove nose and the using method thereof of the annular slagging structure of a kind of pot galvanize band.
Background technology
Iron and steel answers the most a kind of metal with the most use at present in the world; but ferrous materials is easily corroded under the acting in conjunction of empty G&W; in order to reduce the corrosion of ferrous materials; comparatively general method is armor coated on steel surface at present; because zinc has good erosion resistance in an atmosphere; simultaneously price also metal inexpensively, make protective layer cost by zinc layers lower, therefore pot galvanize becomes most widely used metal rust preventing method.
Generally all will through stamping procedure when modern galvanized sheet is produced; very high requirement is proposed to the ductility of band steel; so Continuous Hot Dip Galvanizing band steel all wants annealed technique before entering into zinc pot; not oxidized at high-temperature condition for ensureing band steel in annealing furnace; general all pouring is protected by nitrogen, hydrogen mixed gas; stove nose is the key equipment that annealing furnace is deep in zinc pot, plays the effect to annealing furnace sealing.Band steel from annealing furnace out after directly go deep into completing zincincation in zinc pot.Temperatures as high in zinc pot 450 DEG C, at this temperature, zinc liquid can form zinc gray by evaporation and condensation in stove nose, zinc liquid, also (Zn and Al that the zinc liquid in zinc pot is respectively 97% and about 3% by mass ratio forms to produce cadmia after zinc liquid and band steel react, the Fe ion on a top is brought again after entering zinc pot with steel, Zn, the metal ion such as Al and Fe jointly react and generate the compound and cadmia that mass ratio Zn:Fe:Al is 4:7:9, because the Al content that density is less is higher in cadmia, therefore density is less than the density of zinc liquid), these zinc grays, the density ratio zinc liquid of cadmia is little, zinc liquid surface can be floated up to.Inner at stove nose, because zinc liquid is in the space of a relative closure, therefore, supernatant zinc gray, cadmia can adhere to belt steel surface, form zinc gray print, cadmia print.At present, present industrial expansion makes day by day to improve the surface quality requirements of galvanized sheet, galvanized sheet as automobile exterior panel requires that reaching naked eyes cannot tell defect, therefore zinc gray print, cadmia print and the defect such as impression, scuffing that causes thus can have a strong impact on the surface quality of band steel, are not suitable with the demand of modern industry.
Have at present to adopt and bottom stove nose, mark deslagging funnel and scum pipe is set to discharge the structure of dregs, but, due to the viscosity ratio of zinc liquid, comparatively large fluidity is poor, in order to shorten scum pipe length, a scum pipe can only be arranged on the end of deslagging funnel, cause the zinc liquid pump drainage deleterious away from scum pipe side, especially width is greater than to the stove nose of 2.5 meters, the stove nose of a scum pipe is difficult to reach satisfied deslagging effect.
Summary of the invention
In order to overcome the defect of prior art, providing the pot galvanize utility appliance that a kind of deslagging is effective, galvanizing quality is high, easy to operate, the invention discloses stove nose and the using method thereof of the annular slagging structure of a kind of pot galvanize band.
The present invention reaches goal of the invention by following technical solution:
A stove nose for the annular slagging structure of pot galvanize band, comprise stove nose body, stove nose body is located at the exit end of annealing furnace chute, it is characterized in that: also comprise dregs discharge tube, annular bottom plate, scum pipe, take out zinc pump and zinc liquid vent pipe,
Lower part of stove nose chamber body is inserted in a dregs discharge tube, dregs discharge tube is the through cast in the end, top, the inner side-wall of stove nose body and the outer side wall of dregs discharge tube are oppositely arranged, annular region annular bottom plate between the bottom face of stove nose body and the bottom face of dregs discharge tube is closed, and the inner side-wall of stove nose body, the outer side wall of dregs discharge tube and annular bottom plate form the deslagging funnel that bottom surface is annular;
The bottom of stove nose body sidewall is provided with at least two scum pipes, the inner chamber of scum pipe and deslagging funnel is through, the exit end of every root scum pipe establishes one to take out zinc pump, the liquid pumping hole taking out zinc pump is located at the exit end of scum pipe, the leakage fluid dram that every platform takes out zinc pump connects a zinc liquid vent pipe, and the exit end of zinc liquid vent pipe is located at stove nose, and this is external.
The stove nose of the described annular slagging structure of pot galvanize band, it is characterized in that: the cross section of stove nose body and the cross section of dregs discharge tube are all rectangle, circle or oval, the area of dregs discharge tube cross section is 25% ~ 85% of stove nose body cross-section area.
The using method of the stove nose of the described annular slagging structure of pot galvanize band, is characterized in that: implement successively as follows:
Under the bottom of stove nose body being inserted the zinc liquid level of zinc pot, due to the principle of communicating vessels, the zinc liquid level of the intrinsic zinc liquid level of stove nose and zinc pot flushes, the top of dregs discharge tube is made to be positioned at the below of stove nose body zinc liquid level, under making the exit end of zinc liquid vent pipe be located at this external zinc pot zinc liquid level of stove nose;
Zinc pump is taken out in unlatching, taking out zinc pump is evacuated in this external zinc pot of stove nose by the zinc liquid in deslagging funnel, zinc gray, cadmia to take out of in deslagging funnel to this external zinc pot of stove nose and to be skimmed after zinc liquid level, are made the zinc liquid level in deslagging funnel reduce by zinc liquid simultaneously; Like this in stove nose body, the zinc liquid level of deslagging funnel outward also namely in dregs discharge tube is higher than the zinc liquid level in deslagging funnel, zinc liquid flows in deslagging funnel from the top on dregs discharge tube top in dregs discharge tube, this external zinc liquid of stove nose is then flowed in dregs discharge tube by the bottom of dregs discharge tube, thus completes and once take out the circulation of zinc liquid; Take out zinc pump to continue suction and make to take out zinc liquid circulation continuous and carry out, the intrinsic zinc gray of stove nose, cadmia by continue take out of after skimmed.
Zinc gray, the mobility of cadmia is poor, general abstracting method can only extract most zinc liquid, and be difficult to zinc gray and cadmia to be released, and the present invention is by taking out the lasting suction function of zinc pump, the liquid level difference of zinc liquid level is created between inside and outside the intrinsic deslagging funnel of stove nose, making to take out while zinc liquid circulation continuous carries out, also make the flowing kinetic energy of zinc liquid larger by potential energy and dynamic transformation of energy, mobility is stronger, carry zinc gray, the ability of cadmia is also stronger, under the continuous service taking out the circulation of zinc liquid, zinc gray, cadmia is taken out of in the zinc pot of stove nose body exterior by zinc liquid from stove nose body interior more up hill and dale, by zinc gray after floating to zinc liquid level, cadmia skims, thus guarantee strip surface quality.
Stove nose body inserts in zinc pot by the present invention, the zinc liquid in zinc pot is utilized to implement sealing to annealing furnace chute, utilize the intrinsic partial section of stove nose as deslagging funnel, on deslagging funnel, be provided with at least two scum pipes simultaneously, every root scum pipe connects respectively takes out zinc pump, deslagging excellent result, effectively the dregs such as zinc gray, cadmia floating over zinc liquid upper surface in stove nose body can be discharged completely, especially the stove nose body effect of 2.5 meters is greater than for width even more ideal, can guarantees to stably produce high-quality galvanized sheet.
The invention has the beneficial effects as follows: deslagging is effective, galvanizing quality is high, easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the main apparent direction of the present invention;
Fig. 2 is the structural representation of the left apparent direction of the present invention.
Embodiment
The present invention is further illustrated below by way of specific embodiment.
Embodiment 1
A stove nose for the annular slagging structure of pot galvanize band, comprise stove nose body 1, dregs discharge tube 2, annular bottom plate 3, scum pipe 4, take out zinc pump 5 and zinc liquid vent pipe 6, as depicted in figs. 1 and 2, concrete structure is:
Stove nose body 1 is located at the exit end of annealing furnace chute 10, lower part of stove nose body 1 inner chamber is inserted in a dregs discharge tube 2, dregs discharge tube 2 is the through cast in the end, top, the inner side-wall of stove nose body 1 and the outer side wall of dregs discharge tube 2 are oppositely arranged, annular region between the bottom face of stove nose body 1 and the bottom face of dregs discharge tube 2 annular bottom plate 3 is closed, and the inner side-wall of stove nose body 1, the outer side wall of dregs discharge tube 2 and annular bottom plate 3 form the deslagging funnel 11 that bottom surface is annular;
The bottom of stove nose body 1 sidewall is provided with two scum pipes 4, the inner chamber of scum pipe 4 and deslagging funnel 11 is through, the exit end of every root scum pipe 4 establishes one to take out zinc pump 5, the liquid pumping hole taking out zinc pump 5 is located at the exit end of scum pipe 4, the leakage fluid dram that every platform takes out zinc pump 5 connects a zinc liquid vent pipe 6, and the exit end of zinc liquid vent pipe 6 is located at outside stove nose body 1.
The cross section of stove nose body 1 and the cross section of dregs discharge tube 2 can select rectangle, circle or oval, and the present embodiment selects rectangle, and dregs discharge tube 2 is spliced successively by four blocks of side plates; The area of dregs discharge tube 2 cross section is 25% ~ 85% of stove nose body 1 cross-sectional area, and the present embodiment gets 75%; The discharge capacity of zinc liquid suction pump 4 is maximum reaches 48m
3/ hour.
When the present embodiment uses, implement successively as follows:
Under the bottom of stove nose body 1 being inserted the zinc liquid level of zinc pot 20, due to the principle of communicating vessels, zinc liquid level in stove nose body 1 and the zinc liquid level of zinc pot 20 flush, the top of dregs discharge tube 2 is made to be positioned at the below of stove nose body 1 zinc liquid level, under the zinc pot 20 zinc liquid level that the exit end of zinc liquid vent pipe 6 is located at outside stove nose body 1;
Zinc pump 5 is taken out in unlatching, taking out zinc pump 5 is evacuated in the zinc pot 20 outside stove nose body 1 by the zinc liquid in deslagging funnel 11, zinc gray, cadmia to take out of in deslagging funnel 11 to the zinc pot 20 stove nose body 1 and to be skimmed after on zinc liquid level, are made the zinc liquid level in deslagging funnel 11 reduce by zinc liquid simultaneously; Like this in stove nose body 1, the outer zinc liquid level also namely in dregs discharge tube 2 of deslagging funnel 11 is higher than the zinc liquid level in deslagging funnel 11, zinc liquid flows in deslagging funnel 11 from the top on dregs discharge tube 2 top in dregs discharge tube 2, zinc liquid outside stove nose body 1 is then flowed in dregs discharge tube 2 by the bottom of dregs discharge tube 2, thus completes and once take out the circulation of zinc liquid; Take out zinc pump 5 to continue suction and make to take out zinc liquid circulation continuous and carry out, the zinc gray in stove nose body 1, cadmia by continue take out of after skimmed.
Claims (3)
1. the stove nose of the annular slagging structure of pot galvanize band, comprise stove nose body (1), stove nose body (1) is located at the exit end of annealing furnace chute (10), it is characterized in that: also comprise dregs discharge tube (2), annular bottom plate (3), scum pipe (4), take out zinc pump (5) and zinc liquid vent pipe (6)
Lower part of stove nose body (1) inner chamber is inserted in a dregs discharge tube (2), dregs discharge tube (2) is the through cast in the end, top, the inner side-wall of stove nose body (1) and the outer side wall of dregs discharge tube (2) are oppositely arranged, annular region between the bottom face of stove nose body (1) and the bottom face of dregs discharge tube (2) annular bottom plate (3) is closed, and the inner side-wall of stove nose body (1), the outer side wall of dregs discharge tube (2) and annular bottom plate (3) form the deslagging funnel (11) that bottom surface is annular;
The bottom of stove nose body (1) sidewall is provided with at least two scum pipes (4), the inner chamber of scum pipe (4) and deslagging funnel (11) is through, the exit end of every root scum pipe (4) establishes one to take out zinc pump (5), the liquid pumping hole taking out zinc pump (5) is located at the exit end of scum pipe (4), the leakage fluid dram that every platform takes out zinc pump (5) connects a zinc liquid vent pipe (6), and the exit end of zinc liquid vent pipe (6) is located at stove nose body (1) outward.
2. the stove nose of the annular slagging structure of pot galvanize band as claimed in claim 1, it is characterized in that: the cross section of stove nose body (1) and the cross section of dregs discharge tube (2) are all rectangle, circle or oval, and the area of dregs discharge tube (2) cross section is 25% ~ 85% of stove nose body (1) cross-sectional area.
3. the using method of the stove nose of the annular slagging structure of pot galvanize band as claimed in claim 1 or 2, is characterized in that: implement successively as follows:
Under the bottom of stove nose body (1) being inserted the zinc liquid level of zinc pot (20), the zinc liquid level of the zinc liquid level in stove nose body (1) and zinc pot (20) flushes, the top of dregs discharge tube (2) is made to be positioned at the below of stove nose body (1) zinc liquid level, under making the exit end of zinc liquid vent pipe (6) be located at stove nose body (1) zinc pot (20) zinc liquid level outward;
Zinc pump (5) is taken out in unlatching, taking out zinc pump (5) is evacuated in stove nose body (1) zinc pot (20) outward by the zinc liquid in deslagging funnel (11), zinc gray, cadmia from taking out of in deslagging funnel (11) to being skimmed after on zinc liquid level in the zinc pot (20) stove nose body (1), are made the zinc liquid level in deslagging funnel (11) reduce by zinc liquid simultaneously; Like this in stove nose body (1), the zinc liquid level of deslagging funnel (11) outward also namely in dregs discharge tube (2) is higher than the zinc liquid level in deslagging funnel (11), zinc liquid flows in deslagging funnel (11) from the top on dregs discharge tube (2) interior dregs discharge tube (2) top, stove nose body (1) zinc liquid outward is then flowed in dregs discharge tube (2) by the bottom of dregs discharge tube (2), thus completes and once take out the circulation of zinc liquid; Take out zinc pump (5) to continue suction and make to take out zinc liquid circulation continuous and carry out, the zinc gray in stove nose body (1), cadmia by continue take out of after skimmed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358191.9A CN104947017A (en) | 2014-07-25 | 2014-07-25 | Furnace nose used for hot galvanizing and provided with ring-shaped slagging structure and using method of furnace nose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358191.9A CN104947017A (en) | 2014-07-25 | 2014-07-25 | Furnace nose used for hot galvanizing and provided with ring-shaped slagging structure and using method of furnace nose |
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| Publication Number | Publication Date |
|---|---|
| CN104947017A true CN104947017A (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410358191.9A Pending CN104947017A (en) | 2014-07-25 | 2014-07-25 | Furnace nose used for hot galvanizing and provided with ring-shaped slagging structure and using method of furnace nose |
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| Country | Link |
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| CN (1) | CN104947017A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354288A (en) * | 2017-09-04 | 2017-11-17 | 上海工宇机电设备有限公司 | A kind of stove nose device with annular ash pit |
| CN112251699A (en) * | 2020-11-11 | 2021-01-22 | 嘉兴恒瑞金属科技股份有限公司 | Iron casting surface hot galvanizing treatment equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996041894A1 (en) * | 1995-06-12 | 1996-12-27 | Alphatech, Inc. | Bubble apparatus for removing and diluting dross in a steel treating bath |
| CN102127727A (en) * | 2011-04-22 | 2011-07-20 | 上海东新冶金技术工程有限公司 | Grate for hot galvanizing |
| CN203419974U (en) * | 2013-08-19 | 2014-02-05 | 河北钢铁股份有限公司唐山分公司 | Zinc dross extracting device of zinc-galvanized wire furnace nose |
| CN204022923U (en) * | 2014-07-25 | 2014-12-17 | 上海东新冶金技术工程有限公司 | The stove nose of the annular slagging structure of pot galvanize band |
-
2014
- 2014-07-25 CN CN201410358191.9A patent/CN104947017A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996041894A1 (en) * | 1995-06-12 | 1996-12-27 | Alphatech, Inc. | Bubble apparatus for removing and diluting dross in a steel treating bath |
| CN102127727A (en) * | 2011-04-22 | 2011-07-20 | 上海东新冶金技术工程有限公司 | Grate for hot galvanizing |
| CN203419974U (en) * | 2013-08-19 | 2014-02-05 | 河北钢铁股份有限公司唐山分公司 | Zinc dross extracting device of zinc-galvanized wire furnace nose |
| CN204022923U (en) * | 2014-07-25 | 2014-12-17 | 上海东新冶金技术工程有限公司 | The stove nose of the annular slagging structure of pot galvanize band |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354288A (en) * | 2017-09-04 | 2017-11-17 | 上海工宇机电设备有限公司 | A kind of stove nose device with annular ash pit |
| CN107354288B (en) * | 2017-09-04 | 2020-03-10 | 上海工宇机电设备有限公司 | Furnace nose device with annular slag discharge groove |
| CN112251699A (en) * | 2020-11-11 | 2021-01-22 | 嘉兴恒瑞金属科技股份有限公司 | Iron casting surface hot galvanizing treatment equipment |
| CN112251699B (en) * | 2020-11-11 | 2022-12-23 | 嘉兴恒瑞金属科技股份有限公司 | Iron casting surface hot galvanizing treatment equipment |
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Application publication date: 20150930 |
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