Acid mist recovery device for acid leaching process

Abstract

The utility model discloses an acid mist recovery device for an acid leaching process, and relates to the technical field of recovery devices. The acid leaching device comprises an acid leaching pool and a protective cover, the protective cover is arranged above the acid leaching pool in a liftable mode, the bottom face of the protective cover is fixedly connected with a protruding sleeve, the protruding sleeve corresponds to the acid leaching pool, the top face of the protective cover is fixedly connected with a shell in a penetrating and inserting mode, an induced draft fan is arranged in the shell, and the top face of the shell is fixedly connected with a conical cavity. The output end of the conical cavity is fixedly connected with a filter box, a filter element is arranged in the filter box, an air outlet of the filter box is fixedly connected with a dustproof net, a notch is formed in the inner side wall of the protective cover, a collecting bin is detachably arranged on the bottom face of the protective cover, and a bin opening of the collecting bin corresponds to the bottom face of the notch. According to the acid mist recovery device, generated acid mist can be prevented from being dispersed into a workshop, so that damage to human health is reduced, the safety and comfort of a working environment are improved, and the acid mist can be recovered.

Description

Technical Field

[0001] This utility model relates to the field of recycling device technology, specifically to an acid mist recovery device for acid leaching processes. Background Technology

[0002] Waste circuit boards contain copper, which can be dissolved through acid leaching. However, acid leaching generates a large amount of acid mist, impacting the environment. Currently, the main methods for dealing with acid mist generated during copper recycling are to install exhaust fans to quickly remove the mist, reduce workshop pollution, and have workers wear protective gear to avoid inhaling the mist. However, these methods do not reduce environmental pollution or allow for the recycling of the generated acid mist, resulting in waste. To address these issues, the inventor proposes an acid mist recovery device for the acid leaching process. Utility Model Content

[0003] In order to solve the problems of poor treatment effect and inability to recycle acid mist generated during copper recycling, the purpose of this utility model is to provide an acid mist recovery device for acid leaching process.

[0004] To solve the above technical problems, this utility model adopts the following technical solution: an acid mist recovery device for acid leaching process, including an acid leaching tank and a protective cover. The protective cover is liftably mounted above the acid leaching tank. A protruding sleeve is fixedly connected to the bottom surface of the protective cover, and the protruding sleeve corresponds to the acid leaching tank. A housing is inserted and fixedly connected to the top surface of the protective cover. An induced draft fan is installed inside the housing. A conical cavity is fixedly connected to the top surface of the housing. A filter box is fixedly connected to the output end of the conical cavity. A filter element is installed inside the filter box. A dustproof net is fixedly connected to the air outlet of the filter box. A recess is provided on the inner side wall of the protective cover. A collection chamber is detachably installed on the bottom surface of the protective cover, and the opening of the collection chamber corresponds to the bottom surface of the recess.

[0005] Preferably, an electric cylinder is provided on the outside of the acid leaching tank. A first protrusion is fixedly connected to the output shaft end of the electric cylinder. The side wall of the first protrusion is fixedly connected to the outer wall of the sleeve. A fixed seat is provided on the side wall of the electric cylinder. The side wall of the fixed seat is fixedly connected to the outer wall of the acid leaching tank. The electric cylinder is installed through the fixed seat. When the electric cylinder is started, the first protrusion can be raised and lowered under the action of the output shaft of the electric cylinder, thereby raising and lowering the protective cover. When it is necessary to pick up or put down the material in the acid leaching tank, the protective cover can be raised to pick up or put down the material in the acid leaching tank. After the picking and putting down operation is completed, the protective cover can be lowered so that the sleeve covers the acid leaching tank, thereby preventing the acid mist generated during the copper recovery of the circuit board by acid leaching from spreading into the workshop, thereby reducing the harm to human health and improving the safety and comfort of the working environment.

[0006] Preferably, a second protrusion is fixedly connected to the outer wall of the protruding sleeve, and a lifting rod is fixedly connected to the bottom surface of the second protrusion. A support plate is fixedly connected to the outer wall of the acid leaching tank. The lifting rod passes through the support plate and is slidably connected to the support plate. When the protective cover moves up and down, the cooperation between the lifting rod and the support plate makes the up and down movement of the protective cover more stable. The outer diameter of the acid leaching tank matches the opening size of the protruding sleeve. Both the protruding sleeve and the protective cover are made of acid-resistant material. A frame is provided on the side wall of the blower. The side wall of the frame is fixedly connected to the inner side wall of the protective cover. When copper is recovered from the circuit board by acid leaching, acid mist is generated. When the acid mist rises, it comes into contact with the protective cover. Some of the acid mist liquefies to form droplets, and some droplets fall directly down along the protective cover. The acid mist is returned to the acid leaching tank for recycling. Another portion of the droplets is collected centrally in a collection chamber to prevent them from dripping outside the tank. Simultaneously, an induced draft fan is activated, allowing the airflow to carry the acid mist into a conical cavity, which then enters a filter box. The filter element in the box, made of polyvinyl chloride (PVC) mesh, provides initial filtration. After initial filtration, the mist is piped into a waste gas treatment system for unified treatment and discharge. A hook is fixedly connected to the end face of the collection chamber, and a latch is provided on the outer wall of the protective cover. The latch and hook correspond and cooperate. To remove the droplets from the collection chamber, the latch is lifted to separate from the hook, allowing the collection chamber to be removed. Reinstallation of the collection chamber is performed by reversing the operation.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. In this utility model, when copper is recovered from circuit boards by acid leaching, the protective cover and protrusion sleeve can block the generated acid mist to prevent the acid mist from spreading into the workshop, thereby reducing harm to human health and improving the safety and comfort of the working environment.

[0009] 2. In this utility model, when the acid mist rises, it will come into contact with the protective cover. A portion of the acid mist will liquefy to form droplets. Some droplets will fall directly back into the acid leaching tank as they flow down along the protective cover for recycling. The other part of the droplets can be collected centrally through the collection chamber to prevent them from dripping outside the acid leaching tank. The collection chamber can be disassembled to allow for the removal of the droplets inside.

[0010] 3. In this utility model, the airflow carrying acid mist can enter the conical cavity through the induced draft fan, and then enter the filter box, where the acid mist is filtered by the filter element, thereby preventing the acid mist from being directly discharged and affecting the surrounding environment. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is another structural schematic diagram of the present utility model.

[0014] Figure 3 This is a schematic diagram of the internal structure of the protective cover of this utility model.

[0015] Figure 4 This is a schematic diagram of another internal structure of the protective cover of this utility model.

[0016] Figure 5 This is an enlarged view of section A of this utility model.

[0017] In the diagram: 1. Acid leaching tank; 2. Protective cover; 3. Protrusion sleeve; 4. Electric cylinder; 5. Fixed base; 6. First protrusion; 7. Second protrusion; 8. Lifting rod; 9. Support plate; 10. Notch; 11. Collection bin; 12. Fastener; 13. Hook; 14. Exhaust fan; 15. Frame; 16. Shell; 17. Conical cavity; 18. Filter box; 19. Dustproof net. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Figure 1-5As shown, this utility model provides an acid mist recovery device for acid leaching process, including an acid leaching tank 1 and a protective cover 2. The protective cover 2 is vertically and vertically mounted above the acid leaching tank 1. A protruding sleeve 3 is fixedly connected to the bottom surface of the protective cover 2, and the protruding sleeve 3 corresponds to the acid leaching tank 1. A housing 16 is fixedly connected to the top surface of the protective cover 2. An induced draft fan 14 is installed inside the housing 16. A conical cavity 17 is fixedly connected to the top surface of the housing 16. A filter box 18 is fixedly connected to the output end of the conical cavity 17. A filter element is installed inside the filter box 18. A dustproof net 19 is fixedly connected to the air outlet of the filter box 18. A recess 10 is provided on the inner side wall of the protective cover 2. A collection chamber 11 is detachably installed on the bottom surface of the protective cover 2, and the opening of the collection chamber 11 corresponds to the bottom surface of the recess 10.

[0020] An electric cylinder 4 is provided on the outside of the acid leaching tank 1. A first protrusion 6 is fixedly connected to the output shaft end of the electric cylinder 4. The side wall of the first protrusion 6 is fixedly connected to the outer side wall of the sleeve 3. A fixing seat 5 is provided on the side wall of the electric cylinder 4. The side wall of the fixing seat 5 is fixedly connected to the outer side wall of the acid leaching tank 1.

[0021] By adopting the above technical solution, the electric cylinder 4 is installed through the fixed base 5. When the electric cylinder 4 is started, the first protrusion 6 can be raised and lowered under the action of the output shaft of the electric cylinder 4, which in turn allows the protective cover 2 to be raised and lowered. When it is necessary to take out or put out the material in the acid leaching tank 1, the protective cover 2 can be raised to take out or put out the material in the acid leaching tank 1. After the taking out or putting out operation is completed, the protective cover 2 can be lowered so that the protrusion 3 covers the acid leaching tank 1, thereby preventing the acid mist generated when recovering copper from the circuit board by acid leaching from spreading into the workshop, thereby reducing the harm to human health and improving the safety and comfort of the working environment.

[0022] A second protrusion 7 is fixedly connected to the outer wall of the protrusion 3, and a lifting rod 8 is fixedly connected to the bottom surface of the second protrusion 7. A support plate 9 is fixedly connected to the outer wall of the acid leaching tank 1. The lifting rod 8 passes through the support plate 9 and is slidably connected to the support plate 9.

[0023] By adopting the above technical solution, when the protective cover 2 moves up and down, the lifting rod 8 and the support plate 9 work together to make the up and down movement of the protective cover 2 more stable.

[0024] The outer diameter of the acid leaching tank 1 matches the opening size of the sleeve 3. Both the sleeve 3 and the protective cover 2 are made of acid-resistant material. The side wall of the blower 14 is provided with a frame 15, and the side wall of the frame 15 is fixedly connected to the inner side wall of the protective cover 2.

[0025] By adopting the above technical solution, when copper is recovered from circuit boards by acid leaching, acid mist is generated. As the acid mist rises, it comes into contact with the protective cover 2. When the acid mist encounters the cold protective cover 2, the gaseous components in the acid mist will turn into liquid, causing some of the acid mist to liquefy and form droplets. Some droplets will fall directly back into the acid leaching tank 1 as they flow down along the protective cover 2 for recycling. The other droplets can be collected centrally through the collection chamber 11 to prevent them from dripping outside the acid leaching tank 1. At the same time, the induced draft fan 14 is started, which allows the airflow to carry the acid mist into the conical cavity 17, and then into the filter box 18. The acid mist is then preliminarily filtered by the filter element in the filter box 18. The filter element can be made of polyvinyl chloride mesh. After the preliminary filtration, the gas can be introduced into the waste gas treatment equipment through pipeline for unified treatment and discharge.

[0026] The end face of the collection chamber 11 is fixedly connected with a hook 13, and the outer wall of the protective cover 2 is provided with a buckle 12, which corresponds to and cooperates with the hook 13.

[0027] By adopting the above technical solution, when it is necessary to take out the mist droplets in the collection chamber 11, the buckle 12 is lifted to separate the buckle 12 from the hook 13, and the collection chamber 11 can be removed to take out the mist droplets in the collection chamber 11. When it is necessary to install the collection chamber 11, the operation can be reversed.

[0028] Working principle: When this utility model is in use, the electric cylinder 4 is started, and the first protrusion 6 can be raised under the action of the output shaft of the electric cylinder 4, which in turn raises the protective cover 2 to pick up and put in the material in the acid leaching tank 1.

[0029] After the pick-up and drop-off operation is completed, the protective cover 2 can be lowered so that the protrusion 3 covers the acid immersion tank 1, thereby preventing the acid mist generated during the copper recovery of the circuit board through acid immersion from spreading into the workshop, thus reducing the harm to human health.

[0030] Furthermore, when copper is recovered from the circuit board by acid leaching, the acid mist generated will come into contact with the protective cover 2 as it rises. When the acid mist encounters the cold protective cover 2, the gaseous components in the acid mist will turn into liquid, causing some of the acid mist to liquefy and form droplets. Some of the droplets will fall directly back into the acid leaching tank 1 as they flow down along the protective cover 2 for recycling, while the other droplets can be collected centrally through the collection chamber 11.

[0031] At the same time, the induced draft fan 14 is started, which allows the airflow to carry the acid mist into the conical cavity 17, and then into the filter box 18, so that the acid mist can be initially filtered by the filter element in the filter box 18, and then introduced into the waste gas treatment equipment through the pipeline for unified treatment and discharge.

[0032] When it is necessary to remove the droplets in the collection chamber 11, lift the buckle 12 to separate the buckle 12 from the hook 13, and then remove the collection chamber 11 to remove the droplets inside.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An acid mist recovery device for an acid leaching process, comprising an acid leaching tank (1) and a protective cover (2), characterized in that: The protective cover (2) is vertically mounted above the acid leaching tank (1). A protrusion (3) is fixedly connected to the bottom surface of the protective cover (2). The protrusion (3) corresponds to the acid leaching tank (1). A housing (16) is fixedly connected to the top surface of the protective cover (2). An induced draft fan (14) is installed inside the housing (16). A conical cavity (17) is fixedly connected to the top surface of the housing (16). A filter box (18) is fixedly connected to the output end of the conical cavity (17). A filter element is installed inside the filter box (18). A dustproof net (19) is fixedly connected to the air outlet of the filter box (18). A notch (10) is provided on the inner side wall of the protective cover (2). A collection chamber (11) is detachably mounted on the bottom surface of the protective cover (2). The opening of the collection chamber (11) corresponds to the bottom surface of the notch (10).

2. The acid mist recovery device for the acid leaching process as described in claim 1, characterized in that, An electric cylinder (4) is provided on the outside of the acid leaching tank (1). A first protrusion (6) is fixedly connected to the output shaft end of the electric cylinder (4). The side wall of the first protrusion (6) is fixedly connected to the outer side wall of the sleeve (3).

3. The acid mist recovery device for the acid leaching process as described in claim 2, characterized in that, The electric cylinder (4) has a fixed seat (5) on its side wall, and the side wall of the fixed seat (5) is fixedly connected to the outer side wall of the acid leaching tank (1).

4. The acid mist recovery device for the acid leaching process as described in claim 1, characterized in that, The outer wall of the convex sleeve (3) is fixedly connected to a second protrusion (7), and the bottom surface of the second protrusion (7) is fixedly connected to a lifting rod (8).

5. The acid mist recovery device for the acid leaching process as described in claim 4, characterized in that, The outer wall of the acid leaching tank (1) is fixedly connected to a support plate (9), the lifting rod (8) passes through the support plate (9), and the lifting rod (8) is slidably connected to the support plate (9).

6. The acid mist recovery device for the acid leaching process as described in claim 1, characterized in that, The outer diameter of the acid leaching tank (1) matches the opening size of the sleeve (3), and both the sleeve (3) and the protective cover (2) are made of acid-resistant material.

7. The acid mist recovery device for the acid leaching process as described in claim 1, characterized in that, The side wall of the induced draft fan (14) is provided with a frame (15), and the side wall of the frame (15) is fixedly connected to the inner side wall of the protective cover (2).

8. The acid mist recovery device for the acid leaching process as described in claim 1, characterized in that, The end face of the collection chamber (11) is fixedly connected with a hook (13), and the outer side wall of the protective cover (2) is provided with a buckle (12), which corresponds to and cooperates with the hook (13).

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