CN112662889A - Preparation method of zinc particles and reaction furnace device - Google Patents
Preparation method of zinc particles and reaction furnace device Download PDFInfo
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- CN112662889A CN112662889A CN202011360696.0A CN202011360696A CN112662889A CN 112662889 A CN112662889 A CN 112662889A CN 202011360696 A CN202011360696 A CN 202011360696A CN 112662889 A CN112662889 A CN 112662889A
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Abstract
The invention provides a preparation method of zinc particles and a reaction furnace device, wherein the preparation method of the zinc particles comprises the following steps: step S1: mixing a zinc-containing material and carbon, pressing the mixture into a mixed block, putting the mixed block on a reaction platform in a reaction furnace, and pushing the reaction platform to a heating zone of the reaction furnace; step S2: reducing the pressure in the reaction furnace to 0 to 10 ‑2 In the range of Pa, heating the temperature in the heating zone to 500-900 ℃, selecting a first preset temperature from 500-900 ℃, and heating the mixed block at the first preset temperature for a preset time; and step S3: the mixed block is chemically reacted to generate zinc vapor, and the zinc vapor flows into the collecting area inside the reactor to maintain the collecting area at low levelAnd at a second preset temperature which is the first preset temperature, so that the zinc vapor forms zinc particles on the collecting device in the collecting region. The technical scheme of the application effectively solves the problem that the mode of preparing the nano zinc powder by utilizing the waste zinc-manganese battery in the related technology is single.
Description
Technical Field
The invention relates to the field of environmental protection and resource recycling, in particular to a preparation method of zinc particles and a reaction furnace device.
Background
The zinc nanoparticles have large specific surface area and a nano effect, so that the zinc nanoparticles have excellent chemical activity and a series of unique performances such as better ultraviolet resistance, antistatic performance, antibacterial and bacteriostatic performances, odor removal and enzyme prevention; it has high activity and excellent dispersivity, and can speed vulcanization and produce rubber product with high transparency.
The production and processing of zinc powder in the related technology is to prepare nano zinc powder by using waste zinc-manganese batteries. Specifically, the waste zinc-manganese dry batteries are simply disassembled, then the zinc outer skins are placed into a vacuum furnace, and the nano zinc particles are obtained by controlling the heating temperature, the nitrogen pressure and the condensation temperature by adopting a vacuum evaporation and inert gas condensation method.
However, in the process of preparing the nano zinc powder by using the waste zinc-manganese battery, only one material of the zinc outer skin can be used, so that the method for preparing the nano zinc powder by using the waste zinc-manganese battery is single.
Disclosure of Invention
The invention mainly aims to provide a preparation method of zinc particles and a reaction furnace device, and aims to solve the problem that the method for preparing nano zinc powder by using waste zinc-manganese batteries in the related technology is single.
To achieve the above objects, according to one aspect of the present invention, there is provided zincA method of preparing a particle comprising the steps of: step S1: mixing a zinc-containing material and carbon, pressing into a mixed block, putting the mixed block on a reaction platform in a reaction furnace, and pushing the reaction platform to a heating zone of the reaction furnace, wherein the zinc-containing material is zinc oxide ore or zinc-containing slag or steel mill ash; step S2: reducing the pressure in the reaction furnace to 0 to 10 -2 Heating the temperature in the heating zone to 500-900 ℃ within Pa, selecting a first preset temperature from 500-900 ℃, and heating the mixed block at the first preset temperature for a preset time; and step S3: and carrying out chemical reaction on the mixed block to generate zinc steam, enabling the zinc steam to flow into a collecting region in the reaction furnace, and keeping the collecting region at a second preset temperature lower than the first preset temperature so as to enable the zinc steam to form zinc particles on a collecting device in the collecting region.
Further, the preparation method of the zinc particles also comprises the following steps: and step S4: the collecting device with the zinc particles is taken out of the reaction furnace, and the zinc particles on the collecting device are removed by purging the collecting device with inert gas.
Further, the preset time is in the range of 0.5 to 4 hours.
Further, in step S1, the zinc-containing material and carbon are pressed into a mixed block at a molar ratio of 1:1 to 1.2 under a pressure of 300Mpa for 5 minutes.
Further, in step S2, the pressure inside the reaction furnace is reduced to 0 to 10 by a vacuum pump -2 Pa, in step S3, zinc vapour is fed to the collection zone in the reaction furnace under the action of a vacuum pump.
Further, in step S3, the collecting device includes a main body and a plurality of branches provided on the main body.
According to another aspect of the present invention, there is provided a reactor apparatus for preparing zinc particles using the above-described method for preparing zinc particles, the reactor apparatus including: the furnace body comprises a heating area and a collecting area; the reaction platform is removably arranged in the furnace body and used for placing a mixed block formed by mixing and pressing the zinc-containing material and the carbon; the heating device is arranged outside the furnace body and surrounds the outer side of the heating area, and the heating device heats the mixed block to form zinc steam; the cooling device is arranged outside the furnace body and surrounds the outer side of the collecting area; and the collecting device is removably arranged in the furnace body and is positioned in the collecting region, and the zinc steam is kept at a second preset temperature lower than the first preset temperature, so that the zinc steam forms zinc particles on the collecting device.
Further, the reaction furnace device also comprises a vacuum pump, and the vacuum pump is detachably connected with the furnace body.
Furthermore, the reaction furnace device also comprises a connecting pipe, the connecting pipe is connected between the furnace body and the vacuum pump, the connecting pipe comprises an expanding section, a connecting section and a reducing section connected between the expanding section, the expanding section is connected at the outlet of the furnace body, and the connecting section is connected at the inlet of the vacuum pump.
Further, the reaction furnace device also comprises a first flange component, and the furnace body is connected with the connecting pipe through the first flange component.
By applying the technical scheme of the invention, the preparation method of the zinc particles comprises the following steps: step S1: mixing a zinc-containing material and carbon, pressing into a mixed block, putting the mixed block on a reaction platform in a reaction furnace, and pushing the reaction platform to a heating zone of the reaction furnace, wherein the zinc-containing material is zinc oxide ore or zinc-containing slag or steel mill ash; step S2: reducing the pressure in the reaction furnace to 0 to 10 -2 Heating the temperature in the heating zone to 500-900 ℃ within Pa, selecting a first preset temperature from 500-900 ℃, and heating the mixed block at the first preset temperature for a preset time; and step S3: and carrying out chemical reaction on the mixed block to generate zinc steam, enabling the zinc steam to flow into a collecting region in the reaction furnace, and keeping the collecting region at a second preset temperature lower than the first preset temperature so as to enable the zinc steam to form zinc particles on a collecting device in the collecting region. In the preparation method of the zinc particles, the zinc-containing material is zinc oxide ore or zinc-containing slag or steel mill ash, so that the zinc-containing material has multiple zinc-containing oxidation materials, and compared with the mode of preparing nano zinc powder by using waste zinc-manganese batteries in the related art, the preparation method of the zinc particles enables the zinc particles to be prepared by using waste zinc-manganese batteriesMore zinc-containing materials are used and the mode is more. Meanwhile, in the preparation method of the zinc particles, the activity of the mixed block for generating the zinc steam through the chemical reaction is higher than that of the zinc steam generated through the physical reaction of the zinc outer skin in the related technology, and the activity of the zinc particles formed by the preparation method of the zinc particles is better. Therefore, the technical scheme of the application effectively solves the problem that the mode of preparing the nano zinc powder by using the waste zinc-manganese battery in the related technology is single.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic flow diagram of an embodiment of the method for the preparation of zinc particles according to the invention;
FIG. 2 shows a schematic cross-sectional view of an embodiment of a reactor apparatus according to the invention; and
fig. 3 shows an enlarged schematic view at a of the reactor arrangement of fig. 2.
Wherein the figures include the following reference numerals:
10. a furnace body; 11. a heating zone; 12. a collection region; 13. a heat insulating ring; 21. mixing blocks; 20. a reaction platform; 30. a heating device; 40. a cooling device; 50. a collection device; 51. a main body; 52. a branch rod group; 521. a strut; 522. separating rods; 511. a chassis; 512. a support; 60. a vacuum pump; 70. a connecting pipe; 71. a diameter expanding section; 72. a connecting section; 73. a diameter-changing section; 81. a first flange assembly; 82. a second flange assembly; 83. and (4) end covers.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1 and 2, the method for preparing zinc particles of the present example includes the steps of: step S1: mixing zinc-containing material and carbon, pressing into a mixed block 21, placing the mixed block 21 on a reaction platform 20 in a reaction furnace, pushing the reaction platform 20 to a heating zone 11 of the reaction furnace,wherein the zinc-containing material is zinc oxide ore or zinc-containing slag or steel mill soot; step S2: reducing the pressure in the reaction furnace to 0 to 10 -2 In the range of Pa, heating the temperature in the heating zone 11 to 500-900 ℃, selecting a first preset temperature from 500-900 ℃, and heating the mixing block 21 at the first preset temperature for a preset time; and step S3: the mixing block 21 is chemically reacted to produce zinc vapour, the zinc vapour is caused to flow into the collection zone 12 within the reaction furnace, and the collection zone 12 is maintained at a second predetermined temperature which is lower than the first predetermined temperature, such that the zinc vapour forms zinc particles on the collection means 50 within the collection zone 12.
By applying the technical scheme of the embodiment, in the preparation method of zinc particles of the embodiment, the zinc-containing material is zinc oxide ore or zinc-containing slag or steel mill ash, so that the zinc-containing material has multiple zinc-containing oxidation materials, and compared with a mode of preparing nano zinc powder by using waste zinc-manganese batteries in the related art, the preparation method of zinc particles uses more zinc-containing materials and has more modes. Meanwhile, in the preparation method of the zinc particles of the embodiment, the activity of generating the zinc vapor by the chemical reaction of the mixing block 21 is higher than the activity of generating the zinc vapor by the physical reaction of the zinc outer skin in the related art, and the activity of forming the zinc particles by the preparation method of the zinc particles is better. Therefore, the technical scheme of the embodiment effectively solves the problem that the mode for preparing the nano zinc powder by using the waste zinc-manganese battery in the related technology is single.
It should be noted that the above-mentioned zinc particles have a particle size in the range of 100nm to 800nm, a carbon purity of more than 99.5%, and the chemical reaction is a thermal reduction reaction. The zinc-containing slag includes zinc leaching slag.
As shown in fig. 1, the method for preparing the zinc particles further comprises the steps of: and step S4: the collecting device 50 with the zinc particles is taken out of the reaction furnace, and the zinc particles on the collecting device 50 are removed by purging the collecting device with an inert gas. This facilitates the collection of zinc particles from the collection device 50. The inert gas may be one or more of nitrogen, argon, helium and other common inert gases.
As shown in fig. 1, the preset time is in the range of 0.5 to 4 hours. In this way, a sufficient amount of zinc vapour can be formed.
As shown in fig. 1, in step S1, the zinc containing material and carbon are pressed into a mixed block 21 at a molar ratio of 1:1 to 1.2 under a condition of 300Mpa for 5 minutes under a pressure holding condition. Thus, the quality of the pressed hybrid block 21 is higher.
As shown in FIG. 1, in step S2, the pressure in the reaction furnace is reduced to 0 to 10 by the vacuum pump 60 -2 Pa, which facilitates the realization of a reduction of the pressure inside the reaction furnace to comply with the flow conditions of the zinc vapour. In step S3, zinc vapour is fed into the collection zone 12 within the reaction furnace by means of a vacuum pump 60. In this way, it is facilitated that zinc vapour can flow within the reactor to move from the heating zone 11 into the collection zone 12.
In step S2, the temperature in the heating zone 11 is heated to 500-900 ℃ at a heating rate of 5-10 ℃/min. Thus, the zinc particles can be ensured to have higher activity.
As shown in fig. 1 and 2, in step S3, the collecting device 50 includes a main body and a plurality of branches provided on the main body. Like this, more zinc granule can be piled up to a plurality of branches, improves the quantity of the zinc granule of collecting, and simultaneously, zinc particle size is controllable, and zinc granule's specific surface area is bigger, and the activity is higher, and then can improve economic benefits. The collector 50 is a silicate based refractory material.
Specific example 1 of preparing zinc particles according to the preparation method of zinc particles is as follows:
uniformly mixing zinc oxide ore and carbon according to a molar ratio of 1:1, and maintaining the pressure for 5min under the condition of 300 MPa. The pressed mixed block 21 was placed in a heating zone, and the pressure in the reaction furnace was reduced to 0.01Pa by a vacuum pump. The temperature of the heating zone is raised to 600 ℃ at the rate of 5 ℃/min and kept for 4h. And taking out the collecting device after the reaction is finished and the temperature is reduced, and blowing the zinc particles attached to the collecting device by using nitrogen. The reaction degree of the zinc oxide ore in the heating zone was 97.1%, and the particle size of the collected zinc particles was about 420 nm. The first preset temperature is a certain temperature lower than 600 ℃, the first preset temperature is 550 ℃, and the second preset temperature is 600 ℃.
Specific example 2 of preparing zinc particles according to the preparation method of zinc particles was as follows:
uniformly mixing zinc oxide ore and high-purity carbon according to a molar ratio of 1.1, and maintaining the pressure under the condition of 300MPa for 10min. The pressed mixed block 21 was placed in a heating zone, and the pressure in the reaction furnace was reduced to 0.001Pa by a vacuum pump. The temperature of the heating zone is raised to 700 ℃ at the heating rate of 10 ℃/min and kept for 4h. And taking out the collecting device after the reaction is finished and the temperature is reduced, and blowing the zinc particles attached to the collecting device by using argon. The reaction degree of the zinc oxide ore in the heating zone was 97.9%, and the particle size of the collected zinc particles was about 370 nm. The first preset temperature is a certain temperature lower than 700 ℃, the first preset temperature is 650 ℃, and the second preset temperature is 700 ℃.
Specific example 3 of preparing zinc particles according to the preparation method of zinc particles is as follows:
uniformly mixing zinc oxide ore and high-purity carbon according to a molar ratio of 1.2, and maintaining the pressure under the condition of 300MPa for 15min. The pressed mixed block 21 was placed in a heating zone, and the pressure in the reaction furnace was reduced to 0.001Pa by a vacuum pump. The temperature of the heating zone is raised to 800 ℃ at the rate of 5 ℃/min and kept for 3h. And after the reaction is finished and the temperature is reduced, taking out the collecting device, and purging the zinc particles attached to the collecting device by using argon. The reaction degree of the zinc oxide ore in the heating zone is 98.5%, and the particle size of the collected zinc particles is about 280 nm. The first preset temperature is a temperature lower than 800 ℃, the first preset temperature is 750 ℃, and the second preset temperature is 800 ℃.
Specific example 4 of the preparation of zinc particles according to the preparation method of zinc particles is as follows:
uniformly mixing zinc oxide ore and high-purity carbon according to a molar ratio of 1.2, and maintaining the pressure under the condition of 300MPa for 15min. The pressed mixed block 21 was placed in a heating zone, and the pressure in the reaction furnace was reduced to 0.001Pa by a vacuum pump. The temperature of the heating zone is increased to 900 ℃ at the rate of 5 ℃/min and kept for 1h. And taking out the collecting device after the reaction is finished and the temperature is reduced, and blowing the zinc particles attached to the collecting device by using argon. The reaction degree of the zinc oxide ore in the heating zone is 99.7%, and the particle size of the collected zinc particles is about 250 nm. The first preset temperature is a certain temperature lower than 900 ℃, the first preset temperature is 850 ℃, and the second preset temperature is 900 ℃.
The present application also provides a reactor apparatus, as shown in fig. 1 and 2, for preparing zinc particles by the above-described zinc particle preparation method. The reaction furnace device comprises: furnace body 10, reaction platform 20, heating device 30 and cooling device 40. The furnace body 10 includes a heating zone 11 and a collecting zone 12. A reaction platform 20 is removably arranged in the furnace body 10, and the reaction platform 20 is used for placing a mixing block 21 formed by mixing and pressing the zinc-containing material and the carbon. The heating device 30 is disposed outside the furnace body 10 and surrounds the heating zone 11. The heating device 30 heats the mixing block 21 to form zinc vapor. The cooling device 40 is arranged outside the furnace body 10 and is enclosed outside the collecting area 12. A collection device 50 is removably disposed within the furnace body 10 and within the collection zone 12, the zinc vapor being maintained at a second predetermined temperature that is less than the first predetermined temperature, such that the zinc vapor forms zinc particles on the collection device 50. The preparation method of the zinc particles can solve the problem that the mode of preparing the nano zinc powder by using the waste zinc-manganese battery in the related technology is single, and the preparation method of the zinc particles used by the reaction furnace device can also have the same effect.
As shown in fig. 2 and 3, the reaction furnace apparatus further includes a vacuum pump 60, and the vacuum pump 60 is detachably connected to the furnace body 10. The vacuum pump 60 is provided to reduce the pressure in the furnace 10 so that the zinc vapour can move from the heating zone 11 to the collection zone 12. The heating device 30 is preferably a heating tube, and the cooling device 40 is preferably a cooling tube, and water cooling is adopted. The cooling pipe is provided with a water inlet and a water outlet. The water inlet is positioned below the furnace body 10, and the water outlet is positioned above the furnace body 10.
As shown in fig. 2 and 3, the reaction furnace apparatus further includes a connection pipe 70, and the connection pipe 70 is connected between the furnace body 10 and the vacuum pump 60. The connection pipe 70 includes diameter-enlarged sections 71, a connection section 72, and a diameter-varied section 73 connected between the diameter-enlarged sections 71. The expanding section 71 is connected to the outlet of the furnace body 10, and the connecting section 72 is connected to the inlet of the vacuum pump 60. The shape of the connecting tube 70 described above facilitates the flow of zinc vapor to increase the rate at which zinc particles are formed on the collection device 50.
As shown in fig. 2, the reactor apparatus further includes a first flange assembly 81. The furnace body 10 is connected to the connection pipe 70 by the first flange assembly 81. The first flange assembly 81 is provided to facilitate the assembly and disassembly of the connecting pipe 70 and the furnace body 10.
Specifically, the first flange assembly 81 includes a first flange, a second flange, and a first seal ring interposed between the first flange and the second flange. The first flange is connected to the furnace body 10, and the second flange is connected to the connection pipe 70.
As shown in fig. 2 and 3, the collecting device 50 includes a main body 51 and a plurality of branch lever groups 52 provided on the main body 51. The main body 51 is attached to the inner wall of the furnace body 10. The main body 51 is provided to facilitate installation of a plurality of branch rod groups 52 in the furnace body 10. Meanwhile, the arrangement of the plurality of branch rod groups 52 can accumulate more zinc particles, and the growth efficiency of the zinc particles is improved.
As shown in fig. 2 and 3, the main body 51 includes a chassis 511 and a bracket 512, and the chassis 511 is disposed on an inner wall of the furnace body 10. The bracket 512 is connected to the bottom frame 511, and the branch lever group 52 is inserted into the bracket 512. The bottom frame 511 is caught on the inner wall of the furnace body 10 to facilitate taking out the branch lever group 52 of the main body 51 from the furnace body 10. The branch rod set 52 is inserted into the bracket 512, so that the branch rod set 52 can be conveniently taken from the bracket 512, and the efficiency of collecting zinc particles is improved.
As shown in fig. 2 and 3, a plurality of branch lever groups 52 are provided at intervals on the main body 51, and the branch lever group 52 includes a plurality of struts 521 and a plurality of branch levers 522. The strut 521 is provided on the branch rod 522. In this way, the packing of more zinc particles can be further improved.
As shown in fig. 2 and 3, two adjacent branch rods 522 are arranged at an included angle. In this way, sufficient space is left between two adjacent struts 522 to facilitate the accumulation of more zinc particles on each strut 521.
As shown in fig. 2, the reactor apparatus further includes an insulating ring 13. An insulation ring 13 is provided on the inner wall of the furnace body 10 to separate the heating zone 11 and the collecting zone 12. The heat insulation ring 13 can insulate the heating area 11 and the collecting area 12, and avoid the area of the heating area 11 larger than the area of the collecting area 12 or the area of the collecting area 12 larger than the area of the heating area 11.
As shown in fig. 2, the reactor apparatus further includes a second flange assembly 82 and an end cap 83. The first end of the reaction platform 20 is connected to the end cap 83, the second end of the reaction platform 20 extends into the heating zone 11, and the end cap 83 is connected to the furnace body 10 through the second flange assembly 82. The end cap 83 is provided to seal the furnace body 10 and prevent air outside the furnace body 10 from entering the furnace body 10. The second flange assembly 82 includes a third flange, a fourth flange, and a second seal ring. The third flange is welded to the end cap 83, and the fourth flange is connected to the furnace body 10. The second flange assembly 82 is provided to facilitate removal of the end cap 83 from the furnace body 10.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of making zinc particles, comprising the steps of:
step S1: mixing and pressing a zinc-containing material and carbon into a mixed block (21), placing the mixed block (21) on a reaction platform (20) in a reaction furnace, and pushing the reaction platform (20) to a heating zone (11) of the reaction furnace, wherein the zinc-containing material is zinc oxide ore or zinc-containing slag or steel mill ash;
step S2: reducing the pressure in the reaction furnace to between 0 and 10 -2 In the range of Pa, heating the temperature in the heating zone (11) to 500-900 ℃, and selecting a first preset temperature from 500-900 ℃, wherein the mixing block (21) is heated for a preset time at the first preset temperature;
and step S3: chemically reacting the mixing block (21) to produce zinc vapour, flowing the zinc vapour into a collection zone (12) within the reaction furnace, maintaining the collection zone (12) at a second predetermined temperature lower than the first predetermined temperature, such that the zinc vapour forms zinc particles on a collection device (50) within the collection zone (12).
2. The method of manufacturing zinc particles according to claim 1, further comprising the steps of:
and step S4: the collecting device (50) with the zinc particles is taken out of the reaction furnace, and the zinc particles on the collecting device (50) are removed by purging the collecting device with inert gas.
3. The method for preparing zinc particles according to claim 1, wherein the predetermined time is in the range of 0.5 to 4 hours.
4. The method of preparing zinc particles according to claim 1, wherein in the step S1, the molar ratio of the zinc-containing material and the carbon is in the range of 1:1 to 1.2, and the mixed block (21) is pressed under a pressure of 300Mpa for 5 minutes.
5. The method for producing zinc particles according to claim 1, wherein in the step S2, the pressure in the reaction furnace is reduced to 0 to 10 by a vacuum pump (60) -2 Pa, in said step S3, feeding said zinc vapour to a collection zone (12) inside said reaction furnace under the action of said vacuum pump (60).
6. The method for producing zinc particles according to claim 1, wherein in the step S3, the collecting means (50) includes a main body and a plurality of branches provided on the main body.
7. A reaction furnace apparatus for manufacturing zinc particles by the method for manufacturing zinc particles according to any one of claims 1 to 6, comprising:
the furnace body (10) comprises a heating zone (11) and a collecting zone (12);
the reaction platform (20) is removably arranged in the furnace body (10), and the reaction platform (20) is used for placing a mixing block (21) formed by mixing and pressing zinc-containing materials and carbon;
the heating device (30) is arranged outside the furnace body (10) and surrounds the heating area (11), and the heating device (30) heats the mixing block (21) to form zinc steam;
the cooling device (40) is arranged outside the furnace body (10) and surrounds the collecting area (12);
a collecting device (50) removably arranged in the furnace body (10) and located in the collecting region (12), the zinc vapor being maintained at the second preset temperature lower than the first preset temperature, so that the zinc vapor forms zinc particles on the collecting device (50).
8. The reaction furnace device according to claim 7, further comprising a vacuum pump (60), wherein the vacuum pump (60) is detachably connected to the furnace body (10).
9. The reactor device as claimed in claim 8, further comprising a connection pipe (70), the connection pipe (70) being connected between the furnace body (10) and the vacuum pump (60), the connection pipe (70) comprising an enlarged diameter section (71), a connection section (72), and a reducing section (73) connected between the enlarged diameter sections (71), the enlarged diameter section (71) being connected at an outlet of the furnace body (10), the connection section (72) being connected at an inlet of the vacuum pump (60).
10. The reactor device according to claim 9, further comprising a first flange assembly (81), wherein the furnace body (10) is connected to the connection pipe (70) through the first flange assembly (81).
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| WO2020107669A1 (en) * | 2018-11-26 | 2020-06-04 | 贵州大学 | Method for recycling zinc by comprehensively utilizing steelmaking dust |
| CN111411234A (en) * | 2020-04-15 | 2020-07-14 | 中国恩菲工程技术有限公司 | Jet smelting electrothermal reduction furnace and method for smelting zinc-containing material |
| CN111440957A (en) * | 2020-04-15 | 2020-07-24 | 中国恩菲工程技术有限公司 | System and method for treating zinc concentrate and zinc slag |
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2020
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| US20060123952A1 (en) * | 2002-10-15 | 2006-06-15 | The Australian Steel Company(Operations) Pty Ltd. | Process and apparatus for extracting zinc |
| CH712073A2 (en) * | 2016-01-29 | 2017-07-31 | Bech Ulrich | Process for the carbothermic reduction of zinc oxide to zinc. |
| WO2017129816A1 (en) * | 2016-01-29 | 2017-08-03 | Ulrich Bech | Method for the carbothermal reduction of zinc oxide to zinc |
| CH712284A1 (en) * | 2016-03-21 | 2017-09-29 | Bech Ulrich | Process for the carbothermic reduction of zinc oxide to zinc. |
| WO2020107669A1 (en) * | 2018-11-26 | 2020-06-04 | 贵州大学 | Method for recycling zinc by comprehensively utilizing steelmaking dust |
| CN109576505A (en) * | 2018-12-20 | 2019-04-05 | 北京矿冶科技集团有限公司 | A kind of method that zinc cobalt efficiently separates |
| CN111411234A (en) * | 2020-04-15 | 2020-07-14 | 中国恩菲工程技术有限公司 | Jet smelting electrothermal reduction furnace and method for smelting zinc-containing material |
| CN111440957A (en) * | 2020-04-15 | 2020-07-24 | 中国恩菲工程技术有限公司 | System and method for treating zinc concentrate and zinc slag |
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