CN1116974A - Producing method for -325 mesh zinc powder - Google Patents
Producing method for -325 mesh zinc powder Download PDFInfo
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- CN1116974A CN1116974A CN 94114890 CN94114890A CN1116974A CN 1116974 A CN1116974 A CN 1116974A CN 94114890 CN94114890 CN 94114890 CN 94114890 A CN94114890 A CN 94114890A CN 1116974 A CN1116974 A CN 1116974A
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Abstract
The present invention provides the prodn process of homogenous 325-mesh zinc powder in disc type atomizer. It features that in a sealed container, molten zinc is atomized into powder in the atomizer driven by high-speed motor; under the protection of inert gas, the material to be atomized is fed by inert gas; the powder is gas-solid separated in powder collector; and the gas may be re-used.
Description
The present invention relates to a kind of all preparation methods of the zinc powder by-325 order particle homogeneous, particularly adopt disc-type atomiser to be prepared the method for zinc powder.
Zinc powder is for refining gold and preparing one of alloy and the necessary material of spraying steel plate with copper, tin, existing zinc powder is to melt with zinc ingot metal, it is ZnO that condensation zinc fume and getting, the zinc powder of this method preparation not only contain 10% oxide, and granular size is inhomogeneous, the employing Producing Zinc Powders by Gas Atomization is also arranged, as the air-flow jet atomization, the water-jet atomizing, the product yield is low, power consumption is big, has the particle problem of non-uniform equally.
The shortcoming that the objective of the invention is to overcome above-mentioned prior art is with not enough, and provides a kind of with disc-type atomiser whole zinc powder by-325 order particle homogeneous of preparation under high-speed effect, thereby reaches the high-quality high benefit.
The object of the present invention is achieved like this.
According to the quality of national zinc powder standard GB6890-86, the requirement of packing, the present invention takes following technical proposal:
The preparation method of the zinc powder of-325 order particle homogeneous; comprise the zinc ingot metal fusion; the powder process and the packing of product; it is characterized in that the zinc liquid after the fusion injects in the interior high speed disc atomizer of full hermetic container; and under inert gas shielding, carry out powder by atomization; simultaneously inert gas is transported in the gatherer by the zinc powder of gas dispersion pipe with atomizing, seals into the packing of product up for safekeeping by the sleeve bin stock bag of packing into again.
Wherein the card of high speed disc atomizer has a plurality of streamlined grooves of even distribution, and its rotation revolution is 9000-22000 commentaries on classics per minutes, and zinc liquid atomization temperature is 450 ℃-500 ℃, and the employing inert gas is N
2, CO, CO
2Gas is the disc pipe by the gas dispersion pipe, is furnished with equally distributed angle hole on the pipe base wall, perhaps the staggered angle of two rows hole; Must keep barotropic state and inert gas shielding in closed container and the conveyance conduit, inert gas shielding is carried out in the air-flow endless form, and having pair equipment to cool off conveying effect with powder, the powder gatherer can be the separator of cyclone separator or band baffle plate; The granularity of zinc material can be by the rotation rotating speed decision of disc-type atomiser.
Owing to take technique scheme, make the technology of the present invention compared with the prior art have the product granularity homogeneous, need not sieve all by standard particle size, the yield height, power consumption is little, and the spray chamber volume is little, keeps the safety in production simple advantage of method and effect.
Description of drawings:
Fig. 1 is this preparation method process equipment flow chart.
Embodiment further specifies the technology of the present invention below in conjunction with accompanying drawing:
The proportion of zinc is 7.14, and melting point is 419.5, and chemical activity compares insensitiveness with plumbous, magnesium, and country requires have 4 trades mark that standard is arranged to zinc powder.Be Zn1-4
1～4, the quality of zinc powder depends on the zinc ingot metal quality.
As can be seen from Figure 1; in the container (6) of sealing, adorn the high-frequency electric machines (5) of a band sealing chamber; it is connected with disc-type atomiser (4) by rotating shaft; an air inlet pipe by inert gas (18) is adorned in the sealing chamber bottom; blanketing with inert gas prevents the oxidation of zinc; be used for cooling motor and rotating shaft; guarantee under the high temperature and high speed rotation; the not crooked and normal operation of rotating shaft; the disc-type atomiser card has a plurality of streamlined groove (not shown) of even distribution; two heating plates (2.4) are installed up and down; keep atomization temperature, sight glass (9.10) is equipped with in both sides above container, is used to observe the atomizing situation; pacify feed pipe (1) up with oblique elbow; it is connected with the zinc ingot metal melting furnace, in order to guarantee zinc liquid temperature the heat tracing system can be set, and presses a sight glass (8) in the container bottom side; be used for observing; maintenance; cleaning equipment or removing residue are got final product by bottom valve (11) eliminating.The outlet of container top is connected with powder gatherer (13), and the gatherer top is equipped with pressure regulation and is detected valve (17), and when the purity of pressure testing or inert gas reached standard, this valve can be closed; The separator of also available cyclone separator of gatherer or band baffle plate, when inert gas flow is brought the zinc powder of atomizing during by cyclonic separation into, powder descends, above separated gas recycle, it is less to deliver to high-frequency electric machines closed chamber and gas dispersion pipe (14) so spent gas again by circulating fan (12), the material that descends enters in the collecting bag by sleeve (15), packed products, equally distributed angle hole is arranged on the bottom tube wall of gas dispersion pipe, when by gas, tube wall can not deposit material again, simultaneously, because gas is heavier, rise again when returning the bottom again during by tube wall from the angle hole, the gas rate of climb guarantees mass transport diffusion is evenly in container simultaneously so slowly.
During work, with inert gas such as N
2The N of gas cylinder (19)
2Gas is driven the air in the container away by in the container, gets rid of from valve (17) to reach till zero, check the gas leakage situation, the heating atomization device guarantees that zinc liquid does not solidify again, the zinc liquid temperature of fusion is greater than above promptly 450 ℃-500 ℃ of molten point (419.5), guarantees that viscosity is little, good fluidity, simultaneously also can remove ZnO, improve the zinc powder quality, when high-speed electric expreess locomotive changeed the per minute rotation with 9000-22000, atomizing half was through dwindling, need not sieve to guarantee 45 and 10 products, and requirement promptly is up to state standards.
The disk track of an atomizer is 100mm, in the container of ∮=1.5～2.0M, when motor speed 15000 changes per minute, can handle zinc powder 420kg/hr, all reaches-325 order particles, and uniform particles.Required motor 2KW, therefore not only atomizing effect is good, and saves the energy, and volume of equipment is little.
Claims (9)
1, a kind of zinc powder preparation method of-325 order particle homogeneous; comprise zinc ingot metal fusion, powder process, the packing of product; the zinc liquid that it is characterized in that fusion injects in the interior high speed disc atomizer of full hermetic container; and under inert gas shielding, carry out powder by atomization; simultaneously inert gas is transported to atomized zinc dust in the powder gatherer after by the gas dispersion pipe, seals into the packing of product up for safekeeping by the sleeve bin stock bag of packing into again.
2, preparation method according to claim 1 is characterized in that the card of disc-type atomiser has a plurality of stream with uniform distribution line style grooves, and its rotation rotating speed is 9000-22000 commentaries on classics per minutes.
3, preparation method according to claim 1 is characterized in that zinc liquid atomization temperature is 450 ℃-500 ℃.
4, preparation method according to claim 1, but it is characterized in that inert gas N
2, CO, CO
2Gas.
5, preparation method according to claim 1 is characterized in that gas dispersion Guan Weiyuan disk-shaped tube, is furnished with equally distributed angle hole or staggered angle hole on the pipe base wall.
6, preparation method according to claim 1 is characterized in that must keeping barotropic state and inert gas shielding in closed container and the conveyance conduit.
7, preparation method according to claim 1 is characterized in that inert gas shielding carries out in the air-flow endless form, carries out the cooling of equipment and the conveying of powder simultaneously.
8, preparation method according to claim 1 is characterized in that the powder gatherer can be the separator of cyclone separator or band baffle plate.
9, preparation method according to claim 1 is characterized in that the granularity of zinc powder can be by the rotation rotating speed decision of disc-type atomiser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94114890 CN1116974A (en) | 1994-08-17 | 1994-08-17 | Producing method for -325 mesh zinc powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94114890 CN1116974A (en) | 1994-08-17 | 1994-08-17 | Producing method for -325 mesh zinc powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1116974A true CN1116974A (en) | 1996-02-21 |
Family
ID=5037258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94114890 Pending CN1116974A (en) | 1994-08-17 | 1994-08-17 | Producing method for -325 mesh zinc powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1116974A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393419C (en) * | 2002-04-10 | 2008-06-11 | 佳能株式会社 | Method for disintegrating container containing powder and disintegrator |
| CN102717089A (en) * | 2011-03-30 | 2012-10-10 | 比亚迪股份有限公司 | Granulation equipment |
| CN102912272A (en) * | 2012-10-18 | 2013-02-06 | 如皋市大生线路器材有限公司 | Collector for preventing leakage of galvanizing zinc after burn-through of galvanized pot |
| CN103537704A (en) * | 2013-03-15 | 2014-01-29 | 袁志刚 | Pneumatic atomization production method of high-purity fine spherical metal magnesium powder |
| CN107052352A (en) * | 2017-04-01 | 2017-08-18 | 北京康普锡威科技有限公司 | A kind of CO2The apparatus for preparing metal powder and method of gas shield |
| CN107570721A (en) * | 2017-07-12 | 2018-01-12 | 张家港创博金属科技有限公司 | A kind of method and device for efficiently preparing superfine spherical metallic |
| CN111347054A (en) * | 2018-12-21 | 2020-06-30 | 财团法人金属工业研究发展中心 | Magnetic powder composite material and preparation method thereof |
-
1994
- 1994-08-17 CN CN 94114890 patent/CN1116974A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393419C (en) * | 2002-04-10 | 2008-06-11 | 佳能株式会社 | Method for disintegrating container containing powder and disintegrator |
| CN102717089A (en) * | 2011-03-30 | 2012-10-10 | 比亚迪股份有限公司 | Granulation equipment |
| CN102717089B (en) * | 2011-03-30 | 2015-08-26 | 比亚迪股份有限公司 | A kind of Granulation Equipments |
| CN102912272A (en) * | 2012-10-18 | 2013-02-06 | 如皋市大生线路器材有限公司 | Collector for preventing leakage of galvanizing zinc after burn-through of galvanized pot |
| CN103537704A (en) * | 2013-03-15 | 2014-01-29 | 袁志刚 | Pneumatic atomization production method of high-purity fine spherical metal magnesium powder |
| CN107052352A (en) * | 2017-04-01 | 2017-08-18 | 北京康普锡威科技有限公司 | A kind of CO2The apparatus for preparing metal powder and method of gas shield |
| CN107052352B (en) * | 2017-04-01 | 2020-07-07 | 北京康普锡威科技有限公司 | CO (carbon monoxide)2Gas-shielded metal powder preparation device and method |
| CN107570721A (en) * | 2017-07-12 | 2018-01-12 | 张家港创博金属科技有限公司 | A kind of method and device for efficiently preparing superfine spherical metallic |
| CN111347054A (en) * | 2018-12-21 | 2020-06-30 | 财团法人金属工业研究发展中心 | Magnetic powder composite material and preparation method thereof |
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