Filtering device for zinc sulfide plating equipment

Abstract

The utility model discloses a filtering device for zinc sulfide plating equipment, which comprises a shell covering the upper end of an evaporation boat, the shell seals the inner cavity of the evaporation boat, and two ends of the shell respectively extend to be provided with a positive electrode connecting end and a negative electrode connecting end. A first filter screen plate, a second filter screen plate and an air outlet screen plate are sequentially arranged in an inner cavity of the shell from bottom to top at intervals, the first filter screen plate and the second filter screen plate are provided with first evaporation holes and second evaporation holes respectively, and the first evaporation holes and the second evaporation holes do not correspond to each other in the vertical direction. And a plurality of steam outlet holes communicated with the second evaporation holes are formed in the air outlet screen plate. The zinc sulfide evaporation device can ensure that zinc sulfide is completely evaporated, zinc sulfide steam can be stably evaporated to a film surface, the uniformity of the zinc sulfide evaporated to the surface of a paper film is improved, and the quality of zinc sulfide plating medium paper is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plating sulphurized zinc equipment technical field especially relates to a filter device for plating sulphurized zinc equipment. BACKGROUND

[0002] With the development of coating industry and vacuum coating technology more and more mature, vacuum plating sulphurized zinc medium paper has become more and more widely used in the packaging industry on the international new packaging material. Because plating sulphurized zinc medium paper has the transparent beautiful quality and stable reliable printing performance, and plating sulphurized zinc medium paper product has no peculiar smell, non-toxic, stable and other advantages, meet the requirements of food hygiene, therefore, plating sulphurized zinc medium paper has been more and more favored by the packaging market for many years, the application range of plating sulphurized zinc medium paper is also more and more widely. Plating sulphurized zinc medium paper carries out vacuum plating sulphurized zinc generally adopts traditional evaporation boat heating mode, through heating sulphurized zinc makes its surface composition in the form of atomic group or ion gasification evaporation, can directly reach the paper surface to be plated, because paper surface temperature is lower, the gasification sulphurized zinc condenses to paper surface and forms plating sulphurized zinc medium paper.

[0003] However, in the production of plating sulphurized zinc, sulphurized zinc in the evaporation boat always has many particles not completely evaporated when evaporating, causes the uniformity of sulphurized zinc to be poor when evaporating to the paper film surface, and further the uniformity of sulphurized zinc evaporated to the paper film surface is poor, leading to the quality of plating sulphurized zinc medium paper is poor, and the gaseous sulphurized zinc not completely evaporated adheres on the paper surface and forms medium ash, leading to the film surface convex point is more, and further leading to the paper surface after coating composite has convex point or convex point drops aluminium, and the printing drops ink and other adverse phenomena, forming the loss of working hours, product and material. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the technical problems that sulphurized zinc in the evaporation boat always has many particles not completely evaporated when evaporating, causes the uniformity of sulphurized zinc to be poor when evaporating to the paper film surface, and further the uniformity of sulphurized zinc evaporated to the paper film surface is poor, leading to the quality of plating sulphurized zinc medium paper is poor, and the gaseous sulphurized zinc not completely evaporated adheres on the paper surface and forms medium ash, leading to the film surface convex point is more, and further leading to the paper surface after coating composite has convex point or convex point drops aluminium, and the printing drops ink and other adverse phenomena, the utility model provides the following technical scheme.

[0005] The utility model discloses a filter device for plating sulphurized zinc equipment, including the casing that covers in the evaporation boat upper end, the casing will the evaporation boat inner chamber is sealed, the casing both ends respectively extend and are equipped with positive electrode connection end and negative electrode connection end, the casing inner chamber from below to above is equipped with first filter screen, second filter screen and gas outlet screen board in proper order interval, first filter screen with second filter screen is equipped with first evaporation hole and second evaporation hole respectively, first evaporation hole with second evaporation hole does not correspond in vertical direction, the gas outlet screen board is equipped with a plurality of steam outlet holes with second evaporation hole intercommunication.

[0006] As a further technical solution, the upper end of the air outlet mesh plate is provided with a plurality of guide pipes, and the guide pipes are fixed to the upper end of the steam outlet hole.

[0007] As a further technical solution, the guide pipes are arranged side by side at the upper end of the air outlet mesh plate, and the guide pipes are fixed to the upper end of the steam outlet hole in parallel and at intervals.

[0008] As a further technical solution, the guide pipes are arranged at intervals at the upper end of the air outlet mesh plate, and each guide pipe is fixed to the upper end of the steam outlet hole at intervals.

[0009] As a further technical solution, the upper end of the first evaporation hole is the plate body of the second filter mesh plate, and the lower end of the second evaporation hole is the plate body of the first filter mesh plate.

[0010] As a further technical solution, the first filter mesh plate, the second filter mesh plate and the air outlet mesh plate are integrally formed with the shell.

[0011] The utility model discloses a beneficial effect, the utility model discloses a shell is covered in the upper end sealing of evaporation boat, and the both ends of shell are connected with positive electrode and negative electrode respectively, and the first filter mesh plate, second filter mesh plate and air outlet mesh plate that are arranged at intervals from bottom to top are sealed in the shell, and positive electrode and negative electrode can heat the first filter mesh plate, second filter mesh plate and air outlet mesh plate, when the zinc sulfide vapor of evaporation boat evaporation and the zinc sulfide particle that has not completely evaporated pass through the first filter mesh plate and second filter mesh plate, can be heated and evaporated again, can guarantee that zinc sulfide is completely evaporated, and zinc sulfide vapor can stably evaporate to the film surface, guaranteeing the quality of zinc sulfide film plating. The steam outlet hole on the air outlet mesh plate is separated by the guide pipe, and the zinc sulfide vapor from the air outlet mesh plate can uniformly evaporate to the film surface, improve the uniformity of zinc sulfide evaporated to the paper film surface, and guarantee the quality of zinc sulfide medium paper plating. ACCURACY

[0012] Figure 1 It is the connection schematic drawing of the filter device for the zinc sulfide plating equipment of the utility model;

[0013] Figure 2 It is the connection exploded schematic drawing of the filter device for the zinc sulfide plating equipment of the utility model;

[0014] Figure 3 It is the sectioned schematic drawing of the filter device for the zinc sulfide plating equipment of the utility model;

[0015] Figure 4 It is the exploded schematic drawing in the shell of the filter device for the zinc sulfide plating equipment of the utility model;

[0016] In the figure: 1-evaporation boat; 2-casing; 201-positive electrode connecting end; 202-negative electrode connecting end; 3-first filter screen; 301-first evaporation hole; 4-second filter screen; 401-second evaporation hole; 5-outlet screen; 501-vapor outlet hole; 502-guide pipe. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model. It should be noted that the examples in the utility model and the features in the examples can be combined with each other without conflict.

[0018] In the description of the utility model, it should be understood that the terms "upper", "lower" are based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not to indicate or imply that the devices or elements referred to must have a specific orientation, structure and operation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0019] As Figure 1 and Figure 2 shown, the utility model discloses a filter device for zinc sulfide plating equipment, including the casing 2 that covers on the upper end of evaporation boat 1, the casing 2 seals the inner chamber of evaporation boat 1, the casing 2 is made of the same material with evaporation boat 1, which can be made of tungsten, molybdenum and other materials.

[0020] In a preferred embodiment, the casing 2 extends respectively at both ends and is provided with a positive electrode connecting end 201 and a negative electrode connecting end 202, the positive electrode connecting end 201 and the negative electrode connecting end 202 are connected to a positive electrode and a negative electrode respectively, the zinc sulfide vapor and the zinc sulfide particles that have not completely evaporated in the casing 2 can be heated again, to ensure that the zinc sulfide evaporated from the casing 2 is gaseous, to ensure that the zinc sulfide is completely evaporated, the zinc sulfide vapor can be stably evaporated to the film surface, to ensure the quality of the zinc sulfide plating film.

[0021] As Figure 3 and Figure 4As shown, in a preferred embodiment, the inner cavity of the shell 2 is provided with a first filter plate 3, a second filter plate 4, and an exhaust plate 5 arranged sequentially from bottom to top. Zinc sulfide vapor and incompletely evaporated zinc sulfide particles in the evaporation boat 1 are completely evaporated into zinc sulfide vapor after passing through the first filter plate 3, the second filter plate 4, and the exhaust plate 5. The first filter plate 3, the second filter plate 4, and the exhaust plate 5 are made of the same material as the shell 2 and can be integrally formed with the shell 2. The positive and negative electrodes can heat the first filter plate 3, the second filter plate 4, and the exhaust plate 5, so that the evaporated zinc sulfide vapor and incompletely evaporated zinc sulfide particles in the evaporation boat 1 are reheated after passing through the first filter plate 3, the second filter plate 4, and the exhaust plate 5 and completely converted into zinc sulfide vapor.

[0022] In a preferred embodiment, the first filter plate 3 and the second filter plate 4 are respectively provided with a first evaporation hole 301 and a second evaporation hole 401, and the exhaust plate 5 is provided with a plurality of steam outlet holes 501 connected to the second evaporation hole 401. The first evaporation hole 301 and the second evaporation hole 401 are not vertically aligned, so that the zinc sulfide evaporated by the evaporation boat 1 can contact both the first filter plate 3 and the second filter plate 4. At this time, the plate body of the second filter plate 4 is directly above the first evaporation hole 301, and the plate body of the first filter plate 3 is directly below the second evaporation hole 401. When the zinc sulfide evaporates, part of the zinc sulfide evaporated by the evaporation boat 1 is heated and evaporated again by the first filter plate 3. This part of the vapor and part of the zinc sulfide evaporated by the evaporation boat 1 pass through the first evaporation hole 301, first contact the heated second filter plate 4, evaporate again, and then flow out from the second evaporation hole 401. At this time, the zinc sulfide has been completely evaporated, and the evaporated zinc sulfide vapor evaporates from the exhaust plate 5 towards the film surface.

[0023] In a preferred embodiment, the upper end of the exhaust mesh plate 5 is provided with a plurality of guide tubes 502. The guide tubes 502 are fixed to the upper end of the steam outlet 501, which can improve the uniformity of the evaporation of zinc sulfide vapor from the exhaust mesh plate 5 onto the film surface. The guide tubes 502 can be arranged in two ways, one of which is as follows: Figure 4 First, the guide tubes 502 are arranged side by side on the upper end of the gas outlet mesh plate 5, and the guide tubes 502 are fixed at intervals on the upper end of the steam outlet 501. At this time, the zinc sulfide vapor evaporates to the film surface in a horizontal and longitudinal gradient, and its evaporation to the film surface is relatively uniform. Second, the guide tubes 502 are arranged at intervals on the upper end of the gas outlet mesh plate 5, and each guide tube 502 is fixed at intervals on the upper end of the steam outlet 501. At this time, the staggered guide tubes 502 and steam outlet 501 can also make the zinc sulfide vapor evaporate to the film surface evenly.

[0024] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, various changes or equivalent substitutions can be made without departing from the concept of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A filter device for a zinc sulfide plating equipment, comprising a housing (2) covering the upper end of an evaporation boat (1), the housing (2) sealing the inner cavity of the evaporation boat (1), characterized in that: The shell (2) has a positive electrode connection end (201) and a negative electrode connection end (202) extending from both ends. The inner cavity of the shell (2) is provided with a first filter plate (3), a second filter plate (4) and an exhaust plate (5) from bottom to top. The first filter plate (3) and the second filter plate (4) are respectively provided with a first evaporation hole (301) and a second evaporation hole (401). The first evaporation hole (301) and the second evaporation hole (401) are not corresponding in the vertical direction. The exhaust plate (5) is provided with a plurality of steam outlet holes (501) that are connected to the second evaporation hole (401).

2. The filtration device for zinc sulfide plating equipment according to claim 1, characterized in that: The upper end of the air outlet mesh plate (5) is provided with several guide tubes (502), and the guide tubes (502) are fixed to the upper end of the steam outlet (501).

3. The filtration device for zinc sulfide plating equipment according to claim 2, characterized in that: The guide tubes (502) are arranged side by side on the upper end of the gas outlet plate (5), and the guide tubes (502) are fixed side by side at intervals to the upper end of the steam outlet (501).

4. The filtration device for zinc sulfide plating equipment according to claim 2, characterized in that: The guide tubes (502) are spaced apart on the upper end of the gas outlet plate (5), and each guide tube (502) is fixed at the upper end of the steam outlet (501).

5. The filtration device for zinc sulfide plating equipment according to claim 1, characterized in that: The body of the second filter plate (4) is directly above the first evaporation hole (301), and the body of the first filter plate (3) is directly below the second evaporation hole (401).

6. The filtration device for zinc sulfide plating equipment according to claim 1, characterized in that: The first filter plate (3), the second filter plate (4) and the air outlet plate (5) are integrally formed with the housing (2).

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