CN1255415A - Technology and equipment for prelling zinc - Google Patents
Technology and equipment for prelling zinc Download PDFInfo
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- CN1255415A CN1255415A CN 98111594 CN98111594A CN1255415A CN 1255415 A CN1255415 A CN 1255415A CN 98111594 CN98111594 CN 98111594 CN 98111594 A CN98111594 A CN 98111594A CN 1255415 A CN1255415 A CN 1255415A
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Abstract
A method for prilling zinc includes constant-temp dripping molten zinc at 430-460 deg.C, fixed-diameter dropping with the diameter of 1/3-1/4 the zinc particle diameter, and cooling in water bath at 5-65 deg. C and with depth greater than 400 mm. Its equipment is composed of zinc smelting jar, dripping tray and condensating box. The resultant zinc particles feature uniform granularity and smooth surface.
Description
The invention belongs to metal granulating technique category, be particularly related to a kind of molten drop by motlten metal, instillation condensation in the cooling body lotion forms the method for particle, be specifically related to low-melting-point metal zinc through fusing instillation, condensation and process for granulating, the preparation method and the equipment thereof of required zinc granule when being particularly useful for the high-speed galvanization steel plate and adopting insoluble anode in producing.
The prilling process of relevant metal is a lot, the molten drop method is roughly arranged and two kinds of the methods of splashing, operations such as its method comprises mainly that metal dissolves, instillation and condensation.According to the retrieval, just like United States Patent (USP) NO3888956, Swedish patent NO43978 and Chinese patent 921054505 etc., its method of granulating all do not surmount above-mentioned molten drop and the method for splashing.But because above-mentioned patent exists and can not control granular size and particle size distribution effectively, water may be carried secretly in metal drop inside and the major defect and the deficiencies such as danger increase of blast can be made, particularly should not prepare particle less than 8mm, and even-grained metallic particles, so that had a strong impact on its scope of application, especially be unwell to of the preparation of galvanized steel plain sheet high speed electrodeposition with zinc granule.
The applicant is called " preparation method of tin particle for electroplating steel sheet with tin " in the name of November 28 nineteen ninety-five application, and application number is 95112787.X, and publication number CN1127686A discloses the prilling process of low-melting-point metal tin grain.This invention is at present used in suitability for industrialized production, and product quality has obtained affirming of Shanghai Baosteel.
The present invention is the extension invention of Chinese patent 95112787.X; its purpose is to provide the granulating method and the equipment thereof of motlten metal zinc; produce have uniform particles, the zinc granule of any surface finish; to satisfy the various different demands on the industrial production, particularly satisfy the requirement of adopting insoluble anode high-speed galvanization steel plate technology.
Realize the technical scheme of the object of the invention, its method comprises fusing, instillation, condensation operation successively.
At said melting process, be that spelter is seated in heat fused in the molten zinc can, and be heated to 430 ℃～460 ℃ constant insulations, temperature error ± 5 ℃.
In said instillation operation, be with by the prepared zinc liquid of a last operation, by the liquid outlet of certain bore, splash in the condensate tank(trap) through the instillation mouth of go-no-go again.
In said condensation operation, in condensate tank(trap), be provided with water-bath, the zinc liquid by a last operation is splashed into forms zinc granule by the water-bath cooled and solidified.
According to preferred scheme, at said melting process, the zinc liquid in the molten zinc can its height to liquid level is 70～120mm from liquid outlet, with the zinc liquid that guarantees liquid outlet a constant static pressure is arranged, thereby it is, basicly stable in certain scope in guarantor unit's time by the zinc liquid measure of liquid outlet.
A preferred scheme prompting, said aperture of instiling mouthful be prepared zinc granule diameter 1/3～1/4 between.Predetermined zinc granule particle diameter can be produced in the instillation oral pore footpath of setting in view of the above.
According to preferred scheme, said instillation mouth can have a plurality of, when prepared granular size needs uniformity, the oral pore footpath size that then instils is consistent, the cross-sectional area sum of all instillation mouths and the proportionate relationship of liquid outlet cross-sectional area are 2.5～3.5: 1, produce the zinc granule of predetermined particle diameter with realization, and guarantee giving full play to of production work efficiency.
The repeatedly preferred scheme prompting in experiment back: the mouth that instils is exported to the vertical range of condensate tank(trap) water-bath liquid level, is between 2 times to 8 times of prepared zinc granule diameters.
According to another preferred scheme, be located at the height of water level＞400mm of the water-bath in the condensate tank(trap), water temperature is controlled between 5 ℃～65 ℃.
Prilling process as above-mentioned zinc, the invention provides the Granulation Equipments of following zinc: it has molten zinc can, instillation dish and cooling cylinder, and the inner chamber longitudinal section of said molten zinc can is step-like, liquid outlet is located at the A place, bottom of molten zinc can, and be provided with the bottom plug valve at liquid outlet, and bottom plug valve and screw mandrel link, top at screw mandrel is provided with handwheel, and said instillation dish is located at the below of liquid outlet, is provided with circle shape groove on the instillation dish, circle shape groove central authorities and be positioned on the same center line of liquid outlet, be provided with a boss that is spherical shape,, be provided with and instil mouthful in the bottom of circle shape groove, and said cooling cylinder then is located at the below of instiling mouthful.
According to preferred scheme, the mode of heating of said molten zinc can is electrical heating, in order to realize temp autocontrolled and to improve production environment.
The present invention compared with prior art, it is adjustable to have the granule size controlled amount, the particle size range of being produced is wide, especially can the less zinc granule of prepared sizes, and epigranular unanimity, any surface finish, the zinc granule that particularly adopts the present invention to prepare can satisfy the requirement of insoluble anode high-speed galvanization steel plate technology fully.
Following according to adopting the required zinc granule requirement of insoluble anode high-speed galvanization steel plate zincincation, the embodiment of invention will be further ex-plained with reference to the appended drawings method and apparatus.
Figure 1 shows that the letter meaning diagrammatic sketch of equipment of the present invention.
See also accompanying drawing 1, equipment of the present invention is made up of molten zinc can (1), instillation dish (4) and cooling cylinder (5).The inner chamber longitudinal section of said molten zinc can (1) is step-like (as shown in drawings), electric heating tube (2) is located in the lining material, bottom (A) at molten zinc can (1) is located, be provided with liquid outlet (3), be provided with bottom plug valve (3-3) at liquid outlet (3), and bottom plug valve (3-3) links with screw mandrel (3-2), is provided with handwheel (3-1) at the top of screw mandrel (3-2), rotate handwheel (3-1), can regulate the zinc flow quantity that liquid outlet (3) is located.And said instillation dish (4) is located at the below of liquid outlet (3), is provided with circle shape groove (4-1) on instillation dish (4), is provided with a boss (4-2) that is spherical shape in the central authorities of circle shape groove (4-1).Under working condition, the central lines of the center line of boss (42) and liquid outlet (3).Bottom at circle shape groove (4-1), be provided with the instillation mouth (4-3) of 8 pore size unanimities, and evenly distribute along circle shape groove (4-1), and said cooling cylinder (5), then be located at the below of instil mouthful (4-3), its height＞450mm in cooling cylinder (5), also is provided with discharging chain bucket (6).
Molten zinc can (1) adopts corrosion resistant plate to make, its actual dischargeable capacity is 1.3 cubic metres, can hold zinc liquid 2700Kg, and electrical heating power is 150KW, instillation dish (4) keeps level, and its bottom surface to the vertical range of the horizontal plane of bosh (5) water-bath is 40mm.The aperture of 8 instil mouthful (4-3) is φ 2.2mm, the aperture, minimum place of liquid outlet (3) is φ 3.6mm, and the water-bath height of water level in the condensate tank(trap) (5) is 420mm, and water temperature is controlled at about in the of 30 ℃, in order to guarantee water temperature, can take to realize to the method for cooling cylinder (5) perfusion cold water cooling.
Method of the present invention, be to adopt equipment described above, earlier zinc granule is processed into the zinc cake, then the zinc cake is dropped into from the right side (drawing) of molten zinc can (1), after the energising heating and melting, make zinc liquid be warming up to 430 ℃～460 ℃ and constant insulation, temperature error is not more than ± and 5 ℃, the zinc liquid liquid level that makes liquid outlet (3) locate remains between 70～120mm, opens bottom plug valve (3-3), and zinc liquid promptly injects instillation dish (4) by liquid outlet (3), flow in the circle shape groove (4-1) and loose, via 8 instil mouthful (4-3), splash in the condensate tank(trap) (5), zinc liquid forms particle through the water-bath cooling again.The graininess zinc granule is by discharging chain bucket (6) output condensate tank(trap) (5), and so far, the inventive method prepares zinc granule and promptly accuses and finish.The finished product zinc granule then enters the drying and packaging operation.The input of walking unhurriedly from the right side (drawing) of molten zinc can (1) zinc cake to keep zinc liquid liquid level, is realized the preparation production of serialization zinc granule simultaneously.
From the zinc granule of the interior output of condensate tank(trap) (5), can adopt methods such as nature dries, natural wind blowing drying, hot-air seasoning, make by the zinc granule oven dry of coming out in the water-bath, with the application quality of further raising zinc granule.
Adopt embodiment of the present invention described above, prepared zinc granule shape can be a round bead shape, also can be round pie (as the button cell shape), the zinc granule granularity between φ 6mm～φ 8mm, epigranular, any surface finish is polished bright.Especially round pie zinc granule, the condition of required zinc granule in the time of then can satisfying the high-speed galvanization steel plate fully and adopt insoluble anode in producing.
Claims (8)
1, a kind of prilling process of zinc, it comprises fusing, instillation and condensation operation successively, it is characterized in that:
At said melting process, be that spelter is seated in heat fused in the molten zinc can, and be heated to 430 ℃～460 ℃ constant insulations, temperature error ± 5 ℃.
In said instillation operation, be with by the prepared zinc liquid of a last operation, by the liquid outlet of certain bore, splash in the condensate tank(trap) through the instillation mouth of go-no-go again.
In said condensation operation, in condensate tank(trap), be provided with water-bath, the zinc liquid by a last operation is splashed into forms zinc granule by the water-bath cooled and solidified.
2, the prilling process of zinc according to claim 1 is characterized in that, at said melting process, the zinc liquid in the molten zinc can its height to liquid level is 70～120mm from liquid outlet.
3, the prilling process of zinc according to claim 1 is characterized in that, said aperture of instiling mouthful be prepared zinc granule diameter 1/3～1/4 between.
4, the prilling process of zinc according to claim 1 is characterized in that, said instillation mouth can have a plurality of, and instillation oral pore footpath size is consistent, and the cross-sectional area sum that all instil mouthful and the proportionate relationship of liquid outlet cross-sectional area are 2.5～3.5: 1.
5, the prilling process of zinc according to claim 1 is characterized in that, the mouth that instils is exported to the vertical range of condensate tank(trap) water-bath liquid level, is between 2 times to 8 times of prepared zinc granule diameters.
6, the prilling process of zinc according to claim 1 is characterized in that, is located at the height of water level＞400mm of the water-bath in the condensate tank(trap), and water temperature is controlled between 5 ℃～65 ℃.
7, the applied Granulation Equipments of the prilling process of zinc as claimed in claim 1, it has molten zinc can (1), instillation dish (4) and cooling cylinder (5), it is characterized in that, the inner chamber longitudinal section of said molten zinc can (1) is step-like, liquid outlet (3) is located at the bottom (A) of molten zinc can and locates, and be provided with bottom plug valve (3-3) at liquid outlet (3), and bottom plug valve (3-3) links with screw mandrel (3-2), be provided with handwheel (3-1) at the top of screw mandrel (3-2), and said instillation dish (4) is located at the below of liquid outlet (3), on instillation dish (4), be provided with circle shape groove (4-1), circle shape groove (4-1) central authorities and be positioned on the same center line of liquid outlet (3), be provided with a boss (4-2) that is spherical shape, bottom at circle shape groove (4-1), be provided with instil mouthful (4-3), and said cooling cylinder (5), then be located at the below of instil mouthful (4-3).
8, the Granulation Equipments of zinc according to claim 7 is characterized in that, the mode of heating of said molten zinc can (1) is electrical heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111594 CN1255415A (en) | 1998-11-27 | 1998-11-27 | Technology and equipment for prelling zinc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111594 CN1255415A (en) | 1998-11-27 | 1998-11-27 | Technology and equipment for prelling zinc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1255415A true CN1255415A (en) | 2000-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98111594 Pending CN1255415A (en) | 1998-11-27 | 1998-11-27 | Technology and equipment for prelling zinc |
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| CN (1) | CN1255415A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264164A (en) * | 2013-06-03 | 2013-08-28 | 石家庄新日锌业有限公司 | Zinc granule preparation technology |
| CN107803509A (en) * | 2017-09-28 | 2018-03-16 | 兰州理工大学 | Vaccum weightlessness method ball manufacture device and its operating method |
| CN111451516A (en) * | 2020-06-03 | 2020-07-28 | 广西铟泰科技有限公司 | High-purity indium bead apparatus for producing |
| CN114535584A (en) * | 2022-04-07 | 2022-05-27 | 新乡市七星钎焊科技有限公司 | Production process of particle phosphorus-copper alloy |
| CN114643363A (en) * | 2022-03-15 | 2022-06-21 | 先导薄膜材料（广东）有限公司 | Indium particle preparation device and method |
-
1998
- 1998-11-27 CN CN 98111594 patent/CN1255415A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264164A (en) * | 2013-06-03 | 2013-08-28 | 石家庄新日锌业有限公司 | Zinc granule preparation technology |
| CN103264164B (en) * | 2013-06-03 | 2015-08-05 | 石家庄新日锌业有限公司 | A kind of preparation technology of zinc granule |
| CN107803509A (en) * | 2017-09-28 | 2018-03-16 | 兰州理工大学 | Vaccum weightlessness method ball manufacture device and its operating method |
| CN107803509B (en) * | 2017-09-28 | 2019-12-31 | 兰州理工大学 | Ball manufacturing device by vacuum weightlessness method and operation method thereof |
| CN111451516A (en) * | 2020-06-03 | 2020-07-28 | 广西铟泰科技有限公司 | High-purity indium bead apparatus for producing |
| CN114643363A (en) * | 2022-03-15 | 2022-06-21 | 先导薄膜材料（广东）有限公司 | Indium particle preparation device and method |
| CN114643363B (en) * | 2022-03-15 | 2024-04-05 | 先导薄膜材料（广东）有限公司 | Indium particle preparation device and method |
| CN114535584A (en) * | 2022-04-07 | 2022-05-27 | 新乡市七星钎焊科技有限公司 | Production process of particle phosphorus-copper alloy |
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