Cleaning liquid recovery device for preparation of etched foil

Abstract

The invention relates to a cleaning fluid recovery device for etched foil preparation, the cleaning fluid recovery device comprises an upper cleaning shell and a lower recovery shell, the interior of the cleaning shell is divided into a primary cleaning bin, a middle cleaning bin and a tail cleaning bin in the cleaning direction, the lower parts of the primary cleaning bin, the middle cleaning bin and the tail cleaning bin are communicated, and the lower parts of the primary cleaning bin, the middle cleaning bin and the tail cleaning bin are communicated. A partition plate is vertically arranged in the middle of the interior of the recycling shell and divides the interior of the recycling shell into a reaction bin on the front portion and a precipitation bin on the rear portion, and the reaction bin is provided with a dosing assembly. The invention aims to overcome the defects in the prior art, and provides the cleaning liquid recovery device for preparing the etched foil, so that the cleaning effect is guaranteed, the cleaning liquid is convenient to recover and recycle, acid in a cleaning agent is neutralized, and aluminum salt is precipitated through reaction.

Description

Technical Field

[0001] The invention belongs to the technical field of etching foil processing, and in particular relates to a cleaning liquid recovery device for etching foil preparation. Background Art

[0002] Corrosion foil is a tool used to detect the degree of corrosion on the surface of metal materials. It is usually a thin sheet that contacts the metal surface and is coated with a special chemical. This chemical reacts with the corrosion products on the metal surface to form a colored compound. By observing the color and shape of this colored compound, the degree and location of corrosion on the metal surface can be determined. Corrosion foil is often used to detect metal materials in the fields of aviation, aerospace, automobiles and chemicals to ensure their structural integrity and safety.

[0003] A variety of acids are used in the reproduction process of etched foil, and aluminum salts are produced at the same time. Cleaning fluid is needed to clean the etched foil. After cleaning, the cleaning fluid will contain a large amount of acidic solution and aluminum salts. If these substances are not cleaned, the cleaning fluid cannot be used again, which will cause a waste of resources and greatly increase the production cost of the enterprise. If these acids and aluminum salts are not handled properly, they will also have a great impact on the environment. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a cleaning liquid recovery device for preparing a corroded foil.

[0005] The present invention is achieved through the following technical solutions:

[0006] A cleaning liquid recovery device for preparing corrosion foil, the cleaning liquid recovery device comprises an upper cleaning shell and a lower recovery shell, the cleaning shell is divided into a primary cleaning chamber, a middle cleaning chamber and a final cleaning chamber along the cleaning direction, the primary cleaning chamber, the middle cleaning chamber and the final cleaning chamber are connected at the bottom, and a one-way valve is provided at the connection between the primary cleaning chamber and the middle cleaning chamber and at the connection between the middle cleaning chamber and the final cleaning chamber, and the conduction square of the two one-way valves is from back to front;

[0007] The recovery shell is in the shape of a sealed shell, and a partition is vertically arranged in the middle of the recovery shell, and the partition divides the recovery shell into a reaction chamber in the front and a sedimentation chamber in the rear. The upper part of the reaction chamber is connected to the upper part of the sedimentation chamber, the upper part of the reaction chamber is connected to the primary cleaning chamber, and the upper part of the sedimentation chamber is connected to the intermediate cleaning chamber through a water pump;

[0008] The reaction chamber is provided with a dosing component, which includes a dosing tube and a liquid medicine shell. The liquid medicine shell is in the shape of a shell with an upper opening and is located outside the reaction chamber. The dosing tube is transversely arranged in the upper part of the reaction chamber. The middle section of the dosing tube is in the shape of a circular tube. The middle section of the dosing tube is connected to the lower part of the liquid medicine shell. The front section and the rear section of the dosing tube are in the shape of a truncated cone tube with a larger front and a smaller rear and a smaller front and a larger rear, respectively. The front end of the front section of the dosing tube is connected to the initial cleaning chamber through an electromagnetic valve.

[0009] In order to further realize the present invention, the following technical solutions may be preferably selected:

[0010] Preferably, a filter screen is transversely arranged in the middle of the reaction chamber, the filter screen is located below the dosing tube and below the connection between the reaction chamber and the precipitation chamber, and the rear end of the rear section of the dosing tube is connected to the middle of the filter screen.

[0011] Preferably, a discharge chamber is provided below the front end of the reaction chamber, the upper end of the discharge chamber is connected to the bottom surface of the reaction chamber, and the discharge chamber is provided with a liquid discharge pipe.

[0012] Preferably, a scraping assembly is provided in the reaction bin, and the scraping assembly is located below the filter screen. The scraping assembly includes a roller and a transmission belt. The two rollers are respectively rotatably arranged at the front and rear ends of the reaction bin, and the transmission belt is wound and arranged between the two rollers. A plurality of hollow areas are evenly distributed on the transmission belt, and brushes are evenly distributed on the side of the transmission belt away from the roller. One end of the brush is fixedly connected to the transmission belt, and the other end is against the filter screen or the bottom surface of the reaction bin.

[0013] Preferably, the lower end of the partition is sealed and connected to the bottom surface of the recovery shell, and an opening is provided at the upper part, and a baffle is longitudinally slidably provided at the opening.

[0014] Preferably, a floating block is longitudinally slidably provided in the sedimentation bin, the floating block floats on the surface of the liquid in the sedimentation bin, and the baffle is fixedly connected to the floating block.

[0015] Preferably, a reflux pipe is provided between the sedimentation bin and the intermediate cleaning bin. The reflux pipe is a hose, the lower end of which is fixed to the floating block and the end of which is located below the water surface in the sedimentation bin, and the upper end of the reflux pipe is connected to the water pump in the intermediate cleaning bin.

[0016] Preferably, the lower end of the reflux pipe is located at an end of the sedimentation bin away from the partition.

[0017] Preferably, the initial cleaning bin, the intermediate cleaning bin and the final cleaning bin are each provided with an introduction component, the introduction component comprising a fixed guide roller and a movable guide roller, the fixed guide roller being rotatably arranged on the cleaning shell, the two fixed guide rollers being respectively located at the front and rear ends above the initial cleaning bin, the intermediate cleaning bin or the final cleaning bin, and the two movable guide rollers being respectively located at the front and rear ends of the lower part of the initial cleaning bin, the intermediate cleaning bin or the final cleaning bin.

[0018] Preferably, the introduction component also includes a positioning rod and a rotating shaft, the two positioning rods are respectively located on both sides of the introduction component, the two ends of the two movable guide rollers are respectively rotatably sleeved on the two ends of the two positioning rods, the rotating shaft is longitudinally slidably arranged in the cleaning shell, and the two rotating shafts are respectively rotatably sleeved on the middle parts of the two positioning rods.

[0019] Through the above technical solution, the beneficial effects of the present invention are:

[0020] The cleaning shell of the present invention is provided with a primary cleaning chamber, a middle cleaning chamber and a final cleaning chamber, and the corrosion foil is cleaned step by step, so as to ensure the cleaning effect and facilitate the recovery of the cleaning liquid.

[0021] The present invention provides a recovery shell below the cleaning shell, and the cleaning liquid is re-introduced into the cleaning shell after being cleaned in the recovery shell, so that the cleaning liquid can be recycled.

[0022] The reaction chamber of the present invention is provided with a dosing component. When the cleaning liquid in the primary cleaning chamber enters the reaction chamber, a reagent is added according to the flow rate to neutralize the acid in the cleaning agent, and the aluminum salt is precipitated through the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural cross-sectional view of the present invention;

[0025] Figure 3 For the present invention Figure 2 Sectional view at AA in the middle;

[0026] Figure 4 It is a structural schematic diagram of the dosing tube of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the introduction component of the present invention;

[0028] Among them: 1-cleaning shell; 2-recovery shell; 3-primary cleaning chamber; 4-middle cleaning chamber; 5-final cleaning chamber; 6-partition; 7-reaction chamber; 8-sedimentation chamber; 9-dosing pipe; 10-drug liquid shell; 11-filter screen; 12-discharge chamber; 13-drum; 14-transmission belt; 15-baffle; 16-floating block; 17-reflux pipe; 18-fixed guide roller; 19-moving guide roller; 20-positioning rod; 21-rotating shaft. DETAILED DESCRIPTION

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0031] Embodiment 1:

[0032] like Figure 1-Figure 5 As shown, a cleaning liquid recovery device for preparing corrosion foil, the cleaning liquid recovery device comprises an upper cleaning shell 1 and a lower recovery shell 2, the cleaning shell 1 is divided into a primary cleaning chamber 3, a middle cleaning chamber 4 and a final cleaning chamber 5 along the cleaning direction, the primary cleaning chamber 3, the middle cleaning chamber 4 and the final cleaning chamber 5 are connected at the bottom, and a one-way valve is provided at the connection between the primary cleaning chamber 3 and the middle cleaning chamber 4 and the connection between the middle cleaning chamber 4 and the final cleaning chamber 5, and the conduction square of the two one-way valves is from back to front;

[0033] The recovery shell 2 is in the shape of a sealed shell, and a partition 6 is vertically arranged in the middle of the recovery shell 2. The partition 6 divides the recovery shell 2 into a reaction chamber 7 at the front and a sedimentation chamber 8 at the rear. The upper part of the reaction chamber 7 is connected to the upper part of the sedimentation chamber 8. The upper part of the reaction chamber 7 is connected to the primary cleaning chamber 3, and the upper part of the sedimentation chamber 8 is connected to the intermediate cleaning chamber 4 through a water pump.

[0034] The reaction chamber 7 is provided with a dosing component, which includes a dosing tube 9 and a liquid medicine shell 10. The liquid medicine shell 10 is in the shape of a shell with an upper end opening and is located outside the reaction chamber 7. The dosing tube 9 is transversely arranged in the upper part of the reaction chamber 7. The middle section of the dosing tube 9 is in the shape of a circular tube. The middle section of the dosing tube 9 is connected to the lower part of the liquid medicine shell 10. The front section and the rear section of the dosing tube 9 are respectively in the shape of a truncated cone tube with a larger front and a smaller rear and a smaller front and a larger rear. The front end of the front section of the dosing tube 9 is connected to the initial cleaning chamber 3 through an electromagnetic valve.

[0035] The cleaning shell 1 of the present invention is provided with a primary cleaning chamber 3, a middle cleaning chamber 4 and a final cleaning chamber 5, which clean the corroded foil step by step, ensure the cleaning effect and facilitate the recovery of the cleaning liquid.

[0036] The present invention is provided with a recovery shell 2 below the cleaning shell 1. The cleaning liquid is cleaned in the recovery shell 2 and then reintroduced into the cleaning shell 1, so that the cleaning liquid can be recycled.

[0037] The reaction chamber 7 of the present invention is provided with a dosing component. When the cleaning liquid in the primary cleaning chamber 3 enters the reaction chamber 7, a reagent is added according to the flow rate to neutralize the acid in the cleaning liquid, and the aluminum salt is precipitated through the reaction.

[0038] In order to prevent the aluminum salt precipitate from entering the cleaning shell 1 again after the reaction, a filter screen 11 is horizontally arranged in the middle of the reaction chamber 7. The filter screen 11 is located below the dosing pipe 9 and below the connection between the reaction chamber 7 and the precipitation chamber 8. The rear end of the dosing pipe 9 is connected to the middle of the filter screen 11.

[0039] In order to collect and discharge the cleaning liquid with aluminum salt precipitates, a discharge bin 12 is provided below the front end of the reaction bin 7. The upper end of the discharge bin 12 is connected to the bottom surface of the reaction bin 7, and the discharge bin 12 is provided with a liquid discharge pipe.

[0040] In order to facilitate the cleaning of aluminum salt precipitates in the reaction bin 7 and prevent the filter screen 11 from being blocked, a scraping assembly is provided in the reaction bin 7, and the scraping assembly is located below the filter screen 11. The scraping assembly includes a roller 13 and a transmission belt 14. The two rollers 13 are respectively rotatably arranged at the front and rear ends of the reaction bin 7, and the transmission belt 14 is transmitted and wound between the two rollers 13. A plurality of hollow areas are evenly distributed on the transmission belt 14, and a brush is evenly distributed on one side of the transmission belt 14 away from the roller 13. One end of the brush is fixedly connected to the transmission belt 14, and the other end is against the filter screen 11 or the bottom surface of the reaction bin 7.

[0041] In order to ensure the quality of the cleaning liquid in the sedimentation bin 8, the lower end of the partition 6 is sealed and connected to the bottom surface of the recovery shell 2, and an opening is provided at the upper part, and a baffle 15 is longitudinally slidably provided at the opening.

[0042] In order to facilitate automatic adjustment of the height position of the baffle 15, a float 16 is longitudinally slidably arranged in the sedimentation bin 8. The float 16 floats on the surface of the liquid in the sedimentation bin 8, and the baffle 15 is fixedly connected to the float 16. When the cleaning liquid in the sedimentation bin 8 is less, the baffle 15 descends, and more cleaning liquid enters the sedimentation bin 8 to ensure that there is enough cleaning liquid from the upper layer of the sedimentation bin 8 to enter the middle cleaning bin 4. When the cleaning liquid in the sedimentation bin 8 is more, the baffle 15 rises to reduce the amount of cleaning liquid entering the sedimentation bin 8, so that the cleaning liquid has more reaction time in the reaction bin 7.

[0043] In order to optimize the product structure, only the cleaning liquid in the upper layer of the sedimentation bin 8 is returned to the middle cleaning bin 4. A reflux pipe 17 is arranged between the sedimentation bin 8 and the middle cleaning bin 4. The reflux pipe 17 is a hose. The lower end of the reflux pipe 17 is fixed to the floating block 16 and the end thereof is located below the water surface in the sedimentation bin 8. The upper end of the reflux pipe 17 is connected to the water pump in the middle cleaning bin 4, and the lower end of the reflux pipe 17 is located at the end of the sedimentation bin 8 away from the partition 6.

[0044] In order to ensure the cleaning effect and facilitate the installation of the imported corrosion foil, the initial cleaning chamber 3, the middle cleaning chamber 4 and the final cleaning chamber 5 are each provided with an introduction component, and the introduction component includes a fixed guide roller 18 and a movable guide roller 19. The fixed guide roller 18 is rotatably arranged on the cleaning shell 1, and the two fixed guide rollers 18 are respectively located at the front and rear ends above the initial cleaning chamber 3, the middle cleaning chamber 4 or the final cleaning chamber 5, and the two movable guide rollers 19 are respectively located at the front and rear ends of the lower part of the initial cleaning chamber 3, the middle cleaning chamber 4 or the final cleaning chamber 5.

[0045] The introduction component also includes a positioning rod 20 and a rotating shaft 21. The two positioning rods 20 are respectively located on both sides of the introduction component. The two ends of the two movable guide rollers 19 are respectively rotated and sleeved on the two ends of the two positioning rods 20. The rotating shaft 21 is longitudinally slidably arranged on the cleaning shell 1, and the two rotating shafts 21 are respectively rotated and sleeved on the middle parts of the two positioning rods 20.

[0046] During cleaning, the positioning rod 20 can swing along with the flow of the cleaning liquid, thereby causing the corrosion foil thereon to shake, thereby ensuring the cleaning effect.

[0047] Embodiment 2:

[0048] A clean cleaning liquid is injected into the cleaning shell 1, and a sodium hydroxide solution is injected into the liquid medicine shell 10. The rotating shaft 21 and the positioning rod 20 rise, and the corrosion foil is sequentially sleeved on the introduction components of the initial cleaning chamber 3, the middle cleaning chamber 4 and the final cleaning chamber 5. The rotating shaft 21 and the positioning rod 20 descend, so that the movable guide roller 19 drives the corrosion foil to be immersed in the cleaning liquid in the cleaning shell 1.

[0049] After cleaning for a period of time, the pH value of the cleaning liquid in the initial cleaning chamber 3 is detected, and then the flow rate between the middle section of the dosing tube 9 and the liquid medicine shell 10 is adjusted according to the pH value and the concentration value of the sodium hydroxide solution, so that the dosing tube 9 is in a conductive state, and the cleaning liquid in the initial cleaning chamber 3 enters the reaction chamber 7 along the dosing tube 9. While the cleaning liquid flows through the middle section of the dosing tube 9, the sodium hydroxide solution in the liquid medicine shell 10 enters the reaction chamber 7 together, and the sodium hydroxide solution reacts with the aluminum salt in the cleaning liquid to generate aluminum hydroxide that is easy to precipitate. At the same time, the aluminum hydroxide can also react with the chloride ions in the cleaning liquid to generate aluminum chloride and water, thereby removing the chloride ions in the cleaning liquid, and then the aluminum chloride reacts with the sodium hydroxide again to generate aluminum hydroxide, until the chloride ions in the cleaning liquid are eliminated and aluminum hydroxide is precipitated. The cleaning liquid after the reaction accumulates and rises through the filter screen 11 and the baffle 15 to enter the precipitation chamber 8, and the upper layer of the cleaning liquid in the precipitation chamber 8 is pumped into the middle cleaning chamber 4.

[0050] During the recovery process, when the cleaning liquid in the primary cleaning chamber 3 is reduced, clean cleaning liquid is added therein, and at the same time, the cleaning liquid containing more aluminum hydroxide precipitate in the discharge chamber 12 is discharged.

[0051] The reaction equation of aluminum salt and sodium hydroxide is as follows:

[0052] AlCl3+3NaOH==Al(OH)3↓+3NaCl

[0053] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cleaning liquid recovery device for etching foil preparation, characterized in that: The cleaning liquid recovery device comprises an upper cleaning shell (1) and a lower recovery shell (2); the cleaning shell (1) is divided into a primary cleaning chamber (3), a middle cleaning chamber (4) and a final cleaning chamber (5) along the cleaning direction; the primary cleaning chamber (3), the middle cleaning chamber (4) and the final cleaning chamber (5) are connected at the bottom; one-way valves are provided at the connection point between the primary cleaning chamber (3) and the middle cleaning chamber (4) and at the connection point between the middle cleaning chamber (4) and the final cleaning chamber (5); the conduction direction of the two one-way valves is from back to front; The recovery shell (2) is in the shape of a sealed shell, and a partition (6) is vertically arranged in the middle of the recovery shell (2), and the partition (6) divides the recovery shell (2) into a reaction chamber (7) at the front and a sedimentation chamber (8) at the rear. The upper part of the reaction chamber (7) is connected to the upper part of the sedimentation chamber (8), the upper part of the reaction chamber (7) is connected to the primary cleaning chamber (3), and the upper part of the sedimentation chamber (8) is connected to the intermediate cleaning chamber (4) through a water pump; The reaction chamber (7) is provided with a dosing assembly, the dosing assembly comprising a dosing tube (9) and a liquid medicine shell (10), the liquid medicine shell (10) being in the shape of a shell with an upper end open and being located outside the reaction chamber (7), the dosing tube (9) being arranged transversely in the upper part of the reaction chamber (7), the middle section of the dosing tube (9) being in the shape of a circular tube, the middle section of the dosing tube (9) being connected to the lower part of the liquid medicine shell (10), the front section and the rear section of the dosing tube (9) being in the shape of a truncated cone tube with a larger front section and a smaller rear section and a smaller front section and a larger rear section, respectively, and the front end of the front section of the dosing tube (9) being connected to the initial cleaning chamber (3) via an electromagnetic valve.

2. The cleaning liquid recovery device for etching foil preparation according to claim 1, characterized in that: A filter screen (11) is transversely arranged in the middle of the reaction chamber (7); the filter screen (11) is located below the dosing pipe (9) and below the connection point between the reaction chamber (7) and the sedimentation chamber (8); the rear end of the rear section of the dosing pipe (9) is connected to the middle of the filter screen (11).

3. The cleaning liquid recovery device for etching foil preparation according to claim 2, characterized in that: A discharge chamber (12) is provided below the front end of the reaction chamber (7); the upper end of the discharge chamber (12) is connected to the bottom surface of the reaction chamber (7); and the discharge chamber (12) is provided with a liquid discharge pipe.

4. The cleaning liquid recovery device for etching foil preparation according to claim 3, characterized in that: A scraping assembly is arranged in the reaction chamber (7), and the scraping assembly is located below the filter screen (11). The scraping assembly comprises a roller (13) and a transmission belt (14). The two rollers (13) are rotatably arranged at the front and rear ends of the reaction chamber (7) respectively. The transmission belt (14) is arranged between the two rollers (13) for transmission and winding. A plurality of hollow areas are evenly distributed on the transmission belt (14). A brush is evenly distributed on one side of the transmission belt (14) away from the rollers (13). One end of the brush is fixedly connected to the transmission belt (14), and the other end is against the filter screen (11) or the bottom surface of the reaction chamber (7).

5. The cleaning liquid recovery device for etching foil preparation according to claim 1, characterized in that: The lower end of the partition (6) is sealed and connected to the bottom surface of the recovery shell (2), and the upper part is provided with an opening, and a baffle (15) is longitudinally slidably provided at the opening.

6. A cleaning liquid recovery device for etching foil preparation according to claim 5, characterized in that: A floating block (16) is longitudinally slidably arranged in the sedimentation bin (8), the floating block (16) floats on the surface of the liquid in the sedimentation bin (8), and the baffle (15) is fixedly connected to the floating block (16).

7. A cleaning liquid recovery device for etching foil preparation according to claim 6, characterized in that: A return pipe (17) is provided between the sedimentation bin (8) and the intermediate cleaning bin (4). The return pipe (17) is a hose. The lower end of the return pipe (17) is fixed to the floating block (16) and the end thereof is located below the water surface in the sedimentation bin (8). The upper end of the return pipe (17) is connected to a water pump in the intermediate cleaning bin (4).

8. The cleaning liquid recovery device for etching foil preparation according to claim 7, characterized in that: The lower end of the reflux pipe (17) is located at an end of the sedimentation bin (8) away from the partition (6).

9. The cleaning liquid recovery device for etching foil preparation according to claim 1, characterized in that: The initial cleaning chamber (3), the intermediate cleaning chamber (4) and the final cleaning chamber (5) are each provided with an introduction assembly, the introduction assembly comprising a fixed guide roller (18) and a movable guide roller (19), the fixed guide roller (18) being rotatably arranged on the cleaning shell (1), the two fixed guide rollers (18) being respectively located at the front and rear ends above the initial cleaning chamber (3), the intermediate cleaning chamber (4) or the final cleaning chamber (5), and the two movable guide rollers (19) being respectively located at the front and rear ends below the initial cleaning chamber (3), the intermediate cleaning chamber (4) or the final cleaning chamber (5).

10. The cleaning liquid recovery device for etching foil preparation according to claim 9, characterized in that: The introduction component further comprises a positioning rod (20) and a rotating shaft (21), the two positioning rods (20) are respectively located at two sides of the introduction component, the two ends of the two movable guide rollers (19) are respectively rotatably sleeved on the two ends of the two positioning rods (20), the rotating shaft (21) is longitudinally slidably arranged on the cleaning shell (1), and the two rotating shafts (21) are respectively rotatably sleeved on the middle parts of the two positioning rods (20).

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