CN216473470U - Reaction device and system for producing zinc sulfide product - Google Patents
Reaction device and system for producing zinc sulfide product Download PDFInfo
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- CN216473470U CN216473470U CN202120445702.6U CN202120445702U CN216473470U CN 216473470 U CN216473470 U CN 216473470U CN 202120445702 U CN202120445702 U CN 202120445702U CN 216473470 U CN216473470 U CN 216473470U
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Abstract
The utility model relates to the technical field of equipment for preparing inorganic block materials, and discloses a reaction device and a system for producing zinc sulfide products, wherein the reaction device comprises a deposition chamber, a mould and an air inlet pipe; an air cavity is arranged in the deposition chamber; the die is provided with a cavity, the die is connected to the deposition chamber, and the cavity is communicated with the air cavity; one end of the air inlet pipe is used for being connected with an external air source, the other end of the air inlet pipe penetrates through the deposition chamber and is inserted into the air cavity, an air injection assembly corresponding to the position of the cavity is arranged on the air inlet pipe, and the air injection assembly corresponds to the center of the cavity. The reaction device and the system for producing the zinc sulfide product provided by the utility model have simple structures and can produce the zinc sulfide product with uniform thickness.
Description
Technical Field
The utility model relates to the technical field of equipment for preparing inorganic block materials, in particular to a reaction device and a reaction system for producing zinc sulfide products.
Background
The zinc sulfide is an infrared optical material with excellent performance, has wide transmission wave band, covers visible light, middle infrared and far infrared, has good mechanical and thermal properties, and is widely applied to preparing infrared optical elements, infrared windows and fairings of precise guidance missiles and the like. In addition, the zinc sulfide has the characteristics of high purity, water insolubility, moderate density, easy processing and the like, and meanwhile, the zinc sulfide has strong capability of resisting severe environment, high hardness and fracture strength twice that of zinc selenide.
At present, the CVD method is mainly used for producing zinc sulfide products. Because the thickness of the zinc sulfide fairing is wide, the product is easy to deposit unevenly in the deposition process. The uneven thickness of the product can cause certain stress on the surface of the fairing, the phenomenon of cracking occurs, and the subsequent processing difficulty is increased. Therefore, if the zinc sulfide fairing is too thin, it cannot be used, resulting in a large cost penalty.
Therefore, manufacturers have attempted to modify the structure of the deposition chamber by using a rotating substrate or by adding a baffle plate to the deposition chamber. Although this structure produces a deposited product of uniform thickness, the product above the baffle is unusable, thereby reducing the efficiency of production.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: the reaction device and the system for producing the zinc sulfide product have simple structure and can produce the zinc sulfide product with uniform thickness.
In order to achieve the above object, the present invention provides a reaction apparatus for producing zinc sulfide products, comprising a deposition chamber, a mold and an air inlet pipe;
an air cavity is arranged in the deposition chamber;
the mould is provided with a cavity, the mould is connected to the deposition chamber, and the cavity is communicated with the air cavity;
one end of the air inlet pipe is used for being connected with an external air source, the other end of the air inlet pipe penetrates through the deposition chamber and is inserted into the air cavity, an air injection assembly corresponding to the position of the cavity is arranged on the air inlet pipe, and the air injection assembly corresponds to the center of the cavity.
Optionally, the air injection assembly includes a first nozzle and a second nozzle, the second nozzle and the first nozzle are both located on the same side of the air inlet pipe, and a center of a connecting line between the first nozzle and the second nozzle corresponds to a center of the cavity.
Optionally, the first nozzle has a first nozzle hole, the second nozzle has a second nozzle hole, and the shape of the first nozzle hole and the shape of the second nozzle hole are both circular.
Optionally, the number of the molds and the number of the air injection assemblies are several, and each air injection assembly corresponds to the position of each mold one by one.
Optionally, each of the molds is uniformly distributed on the deposition chamber.
Optionally, the air injection assemblies located on the same side of the air inlet pipe are evenly distributed at equal intervals from top to bottom.
Optionally, the number of the air inlet pipes is more than two, and the air inlet pipes are arranged side by side.
Optionally, the deposition chamber includes a bottom plate, a cover plate, and four end-to-end side plates, the bottom plate is disposed at a bottom side of each of the side plates, the cover plate is disposed at a top side of each of the side plates, the bottom plate, the cover plate, and each of the side plates enclose the air cavity, the air inlet pipe penetrates through the bottom plate and is inserted into the air cavity, and the mold is connected to the side plates.
Optionally, the mold is of a circular arc-shaped cover body structure.
In order to solve the same technical problem, the utility model also provides a reaction system for producing zinc sulfide products, which comprises the reaction device for producing the zinc sulfide products in any one of the technical schemes.
Compared with the prior art, the reaction device and the system for producing the zinc sulfide product have the beneficial effects that: the deposition chamber is provided with an air cavity, the mold is connected with the deposition chamber, and the cavity of the mold is communicated with the air cavity. The air inlet pipe extends into the air inlet cavity, and the air inlet pipe is provided with air injection assemblies in one-to-one correspondence with the air inlet cavity. The gas injection assembly corresponds to the center of the cavity, so that hydrogen sulfide and zinc steam can be uniformly injected to the inner side of the die to obtain a zinc sulfide product with uniform thickness, the problem of non-uniformity of the product obtained by using the existing CVD method to produce zinc sulfide is solved, and the yield of the zinc sulfide product is improved.
Drawings
FIG. 1 is a front view of a reaction apparatus for producing a zinc sulfide product according to a first embodiment of the present invention;
FIG. 2 is a schematic view showing the internal structure of a reaction apparatus for producing a zinc sulfide product according to a first embodiment of the present invention;
FIG. 3 is a side view (lacking the second side plate) of a reaction apparatus for producing a zinc sulfide product according to a first embodiment of the present invention;
fig. 4 is a top view (lacking a cover plate) of a reaction apparatus for producing a zinc sulfide product according to a first embodiment of the present invention.
In the figure, 1, an air inlet pipe; 2. a mold; 3. a deposition chamber; 31. a base plate; 32. a cover plate; 33. a side plate; 331. a first side plate; 332. a second side plate; 4. a gas injection assembly; 41. a first nozzle; 42. a second nozzle; 5. a first gas ejection hole; 6. a second gas injection hole; 7. an air cavity; 8. a mold cavity.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the present invention, it should be understood that the terms used in the present invention are used in the description of the present invention, and it should be understood that the orientations and positional relationships indicated by the terms "center", "upper", "lower", "vertical", "top", "bottom", "inner", "outer", etc. in the present invention are based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1 to 4, a reaction apparatus for producing a zinc sulfide product according to a preferred embodiment of the present invention includes a deposition chamber 3, a mold 2, and at least one inlet pipe 1. Wherein, the number of the die 2 and the air inlet pipe 1 can be determined according to the actual production situation. An air cavity 7 is arranged in the deposition chamber 3. The mould 2 has a mould cavity 8. The mold 2 is attached to the deposition chamber 1, and the cavity 8 communicates with the air cavity 7. One end of the air inlet pipe 1 is used for being connected with an external air source, and the other end of the air inlet pipe 1 penetrates through the deposition chamber 3 and is inserted into the air cavity 7. The air inlet pipe 1 is provided with an air injection assembly 4 corresponding to the position of a cavity 8 of the mold 2, and the positions of the air injection assemblies 4 respectively correspond to the centers of the cavities 7. The material of the mold 2 in this embodiment is graphite.
Based on the technical scheme, the reaction device for producing the zinc sulfide product enables the air inlet pipe 1 to extend into the air cavity 7 of the deposition chamber 3 by extending the air inlet pipe 1. When the temperature of the deposition chamber 3 is raised to a certain temperature, zinc in the crucible is sprayed out of the gas spraying assembly 4 along with argon gas through the gas inlet pipe 1 in the form of zinc vapor and enters the gas cavity 7 of the deposition chamber 3. Then, hydrogen sulfide gas is introduced into the gas inlet pipe 1, and enters the deposition chamber 3 from the gas injection assembly 4 along with argon gas. Because the gas injection assembly 4 on the gas inlet pipe 1 is right opposite to the center of the cavity 8 of the mold 2, zinc vapor and hydrogen sulfide gas can be uniformly distributed on the inner side of the cavity 8 to form a product, and a small amount of gas stays in the gas cavity 7. The thickness of the zinc sulfide product deposited under the condition is approximately the same on each die 2, so that the condition that the thickness of the product part is too thin due to overlarge thickness gradient of the product is avoided to a great extent, and the preparation success rate of the zinc sulfide product is greatly improved. Moreover, the reaction apparatus is simpler in structure than the apparatus for producing zinc sulfide products by using a rotating substrate or a structure in which a baffle plate is added in the middle of the deposition chamber.
Wherein the gas injection assembly 4 comprises a first nozzle 41 and a second nozzle 42. The first nozzle 41 and the second nozzle 42 are both located on the same side of the intake pipe 1. Existing nozzles typically include a solenoid valve. Electromagnetic valves are arranged in the first nozzle 41 and the second nozzle 42, and the electromagnetic valves are electrically connected with an external control system. The control system is used to control the heating temperature of the deposition chamber 3 and the opening and closing of the first nozzle 41 and the second nozzle 42. The first nozzle 41 is used to eject a mixed gas of zinc vapor and argon gas. The second nozzle 42 is used for ejecting a mixed gas of hydrogen sulfide gas and argon gas. The control system first controls the first nozzle 41 to be opened to spray the mixed gas of the zinc vapor and the argon gas, and at this time, the second nozzle 42 is closed. The first nozzle 41 is closed, the second nozzle 42 is opened, and the second nozzle 42 ejects a mixed gas of hydrogen sulfide gas and argon gas. Two nozzles are associated with each mould 2. The center of the connecting line between the first nozzle 41 and the second nozzle 42 corresponds to the center of the cavity 8, so that the zinc vapor and the hydrogen sulfide gas injected into the cavity 8 are uniformly distributed on the mold 2 in the production process. The first nozzle 41 has a first nozzle hole 5, and the second nozzle 42 has a second nozzle hole 6. The center of the connecting line between the first nozzle hole 5 and the second nozzle hole 6 corresponds to the center of the cavity 8. The shape of the first nozzle hole 5 and the shape of the second nozzle hole 6 are both circular, so that the gas can be uniformly dispersed in the cavity 8 in all directions.
Preferably, the number of the molds 2 and the number of the air injection assemblies 4 are several, and each air injection assembly corresponds to the position of each mold 2 one by one. A plurality of moulds 2 and air injection assemblies 4 corresponding to the moulds are arranged, so that a plurality of zinc sulfide products can be prepared in one deposition chamber 3 at the same time, and the production efficiency is improved. The moulds 2 are evenly distributed over the deposition chamber 3. Since the air injection units 4 correspond to the position of the mold 2, the air injection units 4 are also uniformly distributed. Therefore, after the gas is sprayed out of the gas spraying assembly 4, the zinc vapor, the hydrogen sulfide and the argon gas mixed in the gas cavity 7 are also uniformly distributed, so that the gas distribution uniformity in the gas cavity 7 is ensured, the thickness of products in the dies 2 distributed on the deposition chamber 3 is the same, and the reaction device is further ensured to be capable of producing a plurality of zinc sulfide products with uniform thickness.
Specifically, the air injection assemblies 4 on the same side of the air inlet pipe 1 are uniformly distributed from top to bottom at equal intervals, and the molds 2 opposite to the air injection assemblies 4 are also uniformly distributed in the deposition chamber 3 from top to bottom. The air injection components 4 are uniformly distributed at equal intervals from top to bottom, so that the gas density in the upper space and the lower space of the air cavity 7 is the same, the uniformity of the gas is ensured, and the thickness of zinc sulfide products produced in the upper space and the lower space of the deposition chamber 3 is ensured to be the same to a great extent. Compared with the production equipment which uses a rotary substrate or adds a baffle plate in the middle of the deposition chamber to produce zinc sulfide products, the upper and lower parts of the deposition chamber 3 are respectively provided with the mold 2, so that more products can be obtained by better utilizing the deposition area, and the space utilization rate is high.
More specifically, as shown in fig. 4, the number of the inlet pipes 1 is two, and the inlet pipes 1 are arranged side by side, so that the reaction apparatus can produce more zinc sulfide products. The gas inlet tube 1 in this embodiment extends vertically from the bottom of the deposition chamber 3 into the gas cavity 7. The air inlet pipe 1 is a circular pipe.
Further, the deposition chamber 3 includes a bottom plate 31, a cover plate 32, and four end-to-end side plates 33, the bottom plate 31 being disposed on a bottom side of each side plate 33, and the cover plate 32 being disposed on a top side of each side plate 33. The air chamber 7 is surrounded by a bottom plate 31, a cover plate 32 and four side plates 33. The intake duct 1 is inserted into the air cavity 7 in the deposition chamber 3 through the bottom plate 31, and the molds 2 are respectively disposed on the side plates 33. The deposition chamber 3 is of a cuboid structure, is easy to process and produce and has high space utilization rate. In this embodiment, the side plates 33 include two oppositely disposed first side plates 331 and two oppositely disposed second side plates 332. The width of the first side plate 331 is greater than the width of the second side plate 332. Two rows of molds 2 arranged side by side are arranged on the first side plate 331, and one row of molds 2 is arranged on the second side plate 332.
The reaction device for producing the zinc sulfide product can be used for preparing a fairing or a zinc sulfide flat plate with uniform thickness. When the zinc sulfide fairing needs to be prepared, the mould 2 is a fairing mould. The mould 2 is a circular arc-shaped cover body structure, in particular a hemispherical structure, and is used for producing the fairing.
In order to solve the same technical problem, the utility model also provides a reaction system for producing zinc sulfide products, which comprises the reaction device for producing the zinc sulfide products. The reaction system can ensure that the zinc sulfide products with uniform thickness are produced by arranging the reaction device for producing the zinc sulfide products.
The working process of the utility model is as follows: the inlet pipe 1 is a manifold, the manifold of which is inserted into the air chamber 6. The branch pipes of the manifold are respectively provided with corresponding valve bodies, and each valve body is electrically connected with an external control system. The external control system is also connected to the solenoid valves in the first nozzle 41 and the second nozzle 42, and can control the opening and closing of the first nozzle 41 and the second nozzle 42. When the temperature of the deposition chamber 3 is raised to 400-900 ℃, the external control system controls the corresponding valve body to be opened, the mixed gas of zinc vapor and argon is introduced into the gas inlet pipe 1, the first nozzle 41 of the external control system is opened, the second nozzle 42 is closed, and the mixed gas of zinc vapor and argon is sprayed out from the first nozzle 41. Then, the external control system controls the corresponding valve bodies to be closed, the rest valve bodies are opened, the mixed gas of hydrogen sulfide and argon is introduced into the gas inlet pipe 1, the first nozzle 41 of the external control system is closed, the second nozzle 42 is opened, and the mixed gas of hydrogen sulfide and argon is sprayed out from the second nozzle 42. Since the first nozzle 41 and the second nozzle 42 of the gas inlet pipe 1 are directed toward the center of the mold 2 and the mold 2 is uniformly distributed in the deposition chamber 3, the zinc vapor and the hydrogen sulfide gas are uniformly distributed in the deposition chamber 3, and the zinc sulfide product deposited under such conditions has substantially the same thickness on each mold 2.
Specifically, the reaction apparatus for producing zinc sulfide products provided in this example was used to collectively produce 96 zinc sulfide fairings in the deposition chamber 3 having a length, width and height of 600mm × 600mm × 1800 mm. The zinc sulfide fairing is distributed with 8 rows and 12 rows. The difference in thickness of the cowlings is at most 3.05 mm. The production steps of the zinc sulfide fairing are as follows:
the method comprises the following steps: and (3) processing the graphite piece: cleaning and drying the graphite piece;
step two: charging: assembling all parts of the furnace;
step three: production: adjusting the pressure in the furnace to 2000-10000 Pa, raising the temperature of the furnace to 400-900 ℃, introducing zinc vapor and hydrogen sulfide, and starting production;
step four: discharging: and after the experiment is finished, closing ventilation, starting the procedure to cool to room temperature, and discharging from the furnace at normal pressure to obtain the zinc sulfide fairing product with uniform thickness.
Example two
The difference between this embodiment and the first embodiment is: the reaction apparatus for producing zinc sulfide products provided in this example was used to co-produce 32 zinc sulfide fairings in a deposition chamber 3 having a length, width and height of 300mm × 300mm × 1500 mm. The zinc sulfide fairing is distributed with 4 rows and 8 rows. The difference in thickness of the cowlings is at most 3.78 mm. The production steps of the fairing are as follows:
the method comprises the following steps: and (3) processing the graphite piece: cleaning and drying the graphite piece;
step two: charging: assembling all parts of the furnace;
step three: production: adjusting the pressure in the furnace to 2000-10000 Pa, raising the temperature of the furnace to 400-900 ℃, introducing zinc vapor and hydrogen sulfide, and starting production;
step four: discharging: and after the experiment is finished, closing ventilation, starting the procedure to cool to room temperature, and discharging from the furnace at normal pressure to obtain the zinc sulfide fairing product with uniform thickness.
Except for the above differences, other structures of the present embodiment are the same as those of the first embodiment, and corresponding effects and principles are also the same, which are not described herein again.
EXAMPLE III
The present embodiment is different from the first and second embodiments in that: the reaction apparatus for producing zinc sulfide products provided in this example was used to produce 40 zinc sulfide fairings in a total in a deposition chamber 3 having a length, width and height of 400mm x 1800 mm. The zinc sulfide fairing is distributed with 4 rows and 10 rows. The difference in thickness of the cowlings is at most 4 mm. The production steps of the fairing are as follows:
the method comprises the following steps: and (3) processing the graphite piece: cleaning and drying the graphite piece;
step two: charging: assembling all parts of the furnace;
step three: production: adjusting the pressure in the furnace to 2000-10000 Pa, raising the temperature of the furnace to 400-900 ℃, introducing zinc vapor and hydrogen sulfide, and starting production;
step four: discharging: and after the experiment is finished, closing ventilation, starting the procedure to cool to room temperature, and discharging from the furnace at normal pressure to obtain the zinc sulfide fairing product with uniform thickness.
Except for the above differences, other structures of this embodiment are the same as those of the first and second embodiments, and the corresponding effects and principles are also the same, which are not described herein again.
In summary, the embodiment of the present invention provides a reaction apparatus and a system for producing zinc sulfide products, wherein an air cavity is disposed on a deposition chamber, a mold is connected to the deposition chamber, and the mold cavity of the mold is communicated with the air cavity. The air inlet pipe extends into the air inlet cavity, and the air inlet pipe is provided with air injection assemblies in one-to-one correspondence with the air inlet cavity. The gas injection assembly corresponds to the center of the cavity, so that hydrogen sulfide and zinc steam can be uniformly injected to the inner side of the die to obtain a zinc sulfide product with uniform thickness, the problem of non-uniformity of the product obtained by using the existing CVD method to produce zinc sulfide is solved, and the yield of the zinc sulfide product is improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A reaction device for producing zinc sulfide products is characterized by comprising a deposition chamber, a mold and an air inlet pipe;
an air cavity is arranged in the deposition chamber;
the mould is provided with a cavity, the mould is connected to the deposition chamber, and the cavity is communicated with the air cavity;
one end of the air inlet pipe is used for being connected with an external air source, the other end of the air inlet pipe penetrates through the deposition chamber and is inserted into the air cavity, an air injection assembly corresponding to the position of the cavity is arranged on the air inlet pipe, and the air injection assembly corresponds to the center of the cavity.
2. The reactor apparatus for producing zinc sulfide products of claim 1 wherein the gas injection assembly includes a first nozzle and a second nozzle, the second nozzle and the first nozzle being located on the same side of the gas inlet pipe, the center of the line between the first nozzle and the second nozzle corresponding to the center of the mold cavity.
3. The reaction device for producing a zinc sulfide product according to claim 2, wherein the first nozzle has a first nozzle hole, the second nozzle has a second nozzle hole, a center of a connecting line between the first nozzle hole and the second nozzle hole corresponds to a center of the cavity, and a shape of the first nozzle hole and a shape of the second nozzle hole are both circular.
4. The reaction device for producing zinc sulfide products as claimed in claim 1, wherein the number of the molds and the number of the gas injection assemblies are each plural, and each of the gas injection assemblies corresponds to a position of each of the molds.
5. The reactor apparatus for producing zinc sulfide products of claim 4 wherein each of said molds is uniformly distributed over said deposition chamber.
6. The reactor apparatus for producing zinc sulfide products of claim 5 wherein each of said plurality of air injection assemblies on the same side of said inlet manifold are evenly spaced from top to bottom.
7. The reaction unit for producing zinc sulfide products of claim 1 wherein the number of said inlet pipes is two or more, each of said inlet pipes being arranged side by side.
8. The reactor apparatus for producing zinc sulfide products of any one of claims 1 to 7 wherein the deposition chamber comprises a base plate, a cover plate and four end-to-end side plates, the base plate being disposed on a bottom side of each side plate and the cover plate being disposed on a top side of each side plate, the base plate, the cover plate and each side plate enclosing the air cavity, the air inlet tube being inserted through the base plate into the air cavity, the mold being attached to the side plates.
9. The reaction device for producing zinc sulfide products of any one of claims 1 to 7 wherein the mold is of a circular arc shaped shroud configuration.
10. A reaction system for producing a zinc sulphide product comprising a reaction apparatus for producing a zinc sulphide product according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120445702.6U CN216473470U (en) | 2021-03-01 | 2021-03-01 | Reaction device and system for producing zinc sulfide product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120445702.6U CN216473470U (en) | 2021-03-01 | 2021-03-01 | Reaction device and system for producing zinc sulfide product |
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| CN216473470U true CN216473470U (en) | 2022-05-10 |
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