Acid liquor recycling device

Abstract

The utility model is suitable for the technical field of acid liquor recycling, and provides an acid liquor recycling device which comprises a base, the heating cylinder is fixed at the top of the base and is used for increasing temperature; the storage cylinder is arranged in the heating cylinder and is used for storing the filtered acid liquor; the filter cylinder is detachably mounted at the top of the storage cylinder and is used for filtering acid liquor; and the collecting hopper is fixed at the top of the filter drum and is used for guiding acid liquor to be added. According to the acid liquor recycling device provided by the scheme, the acid liquor is heated through the heating cylinder, impurities are filtered through the filter cylinder, the acid liquor is conveniently added through the collecting hopper, the air pump and the air inlet pipe generate negative pressure, and the negative pressure monitoring piece monitors the negative pressure state in real time; acid gas is guided out through a connecting pipe, the acid gas is buffered and stored through a buffer box, the acid gas is liquefied through a low-temperature liquefaction pipe, and the liquefied acid liquid is stored through a collecting box, so that efficient filtering, collecting and recycling of the acid liquid are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of acid recovery technology, and in particular relates to an acid reuse device. Background Technology

[0002] The recycling and reuse of acid after pickling is an important part of achieving resource conservation and environmental protection in industrial production. Since the acid after pickling contains a lot of impurities, it is often directly filtered during recycling. This method is relatively simple and makes it difficult to guarantee the acid concentration. Utility Model Content

[0003] This invention provides an acid recycling device, which aims to solve the problem mentioned in the background art that acid recovery often involves direct filtration, which is simple to operate but makes it difficult to guarantee the acid concentration.

[0004] To solve the above problems, this utility model is implemented as follows: an acid reuse device, comprising: a base; a heating cylinder fixed to the top of the base for heating; a storage cylinder installed inside the heating cylinder for storing filtered acid; a filter cylinder detachably installed on the top of the storage cylinder for filtering acid; a collection hopper fixed to the top of the filter cylinder for guiding the addition of acid; an air pump installed on the top of the base for generating negative pressure by evacuation, the air pump having an air inlet pipe extending into the storage cylinder; and a negative pressure monitoring element installed on the storage cylinder for monitoring the negative pressure state inside the storage cylinder.

[0005] Preferably, a connecting pipe for discharging acid gas is installed on one side of the storage cylinder, a buffer box communicating with the connecting pipe is provided on the top of the base, a cryogenic liquefaction pipe for liquefying acid gas is installed on the connecting pipe, and a collection box for storing acid liquid is fixed on the top of the base and connected to the cryogenic liquefaction pipe.

[0006] Preferably, the cryogenic liquefaction tube includes a glass tube connected to the connecting tube, a U-shaped shell disposed outside the glass tube, the inner wall of the U-shaped shell being connected to the glass tube by a connector, ice being filled between the U-shaped shell and the glass tube, and a liquid guide bucket installed at the bottom of the glass tube and extending outside the U-shaped shell for guiding the discharge of acid, the liquid guide bucket extending into the collection tank.

[0007] Preferably, a liquefaction tank is installed on one side of the buffer tank, an extension pipe for guiding gas delivery is provided between the buffer tank and the liquefaction tank, an exhaust pipe extending into the liquefaction tank is installed at the exhaust end of the air pump, and a drain pipe is provided at the bottom of both the storage cylinder and the liquefaction tank, and a valve is provided on both drain pipes.

[0008] Preferably, the storage cylinder has an opening, and the negative pressure monitoring device includes a fixed frame installed in the opening, a connecting plate installed above the fixed frame by a spring, a rubber telescopic cylinder installed between the edge of the connecting plate and the storage cylinder, the rubber telescopic cylinder being sleeved outside the opening, a limiting telescopic rod disposed inside the spring and connected between the fixed frame and the connecting plate, a fixed cavity fixed on the storage cylinder and accommodating the connecting plate and the rubber telescopic cylinder, and a trigger button installed at the top of the fixed cavity that contacts the connecting plate. The trigger button is used to assist in controlling the start and stop of the air pump.

[0009] Preferably, the air inlet pipe, the exhaust pipe and the extension pipe are each equipped with a one-way valve, the connecting pipe is equipped with an electric valve, and the top of the collecting hopper is detachably equipped with a block for sealing the collecting hopper.

[0010] Preferably, the heating cylinder is equipped with a controller for controlling the start and stop of the electrical equipment, the controller is equipped with a temperature sensor, the storage cylinder is equipped with an isolation cylinder, and clean water for auxiliary water bath heating is filled between the isolation cylinder and the storage cylinder, and the storage cylinder is equipped with a pressure relief valve.

[0011] Compared with related technologies, the acid recycling device provided by this utility model has the following advantages:

[0012] Compared with existing technologies, the acid reuse device provided in this solution achieves efficient filtration, collection, and reuse of acid through a series of structures, including a heating cylinder to heat the acid, a filter cylinder to filter impurities, a collection hopper for convenient addition of acid, an air pump and an air inlet pipe to generate negative pressure, a negative pressure monitoring device to monitor the negative pressure status in real time, a connecting pipe to discharge acid gas, a buffer tank to buffer and store acid gas, a cryogenic liquefaction pipe to liquefy acid gas, and a collection tank to store liquefied acid. At the same time, it ensures the stable operation of the device and the safe treatment of acid gas emissions, effectively improving the efficiency and purity of acid treatment and reducing the risk of environmental pollution. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of an acid recycling device provided by this utility model;

[0014] Figure 2 This is a side sectional view of the low-temperature liquefaction tube of this utility model.

[0015] Figure 3 This is a top sectional view of the negative pressure monitoring device in this utility model;

[0016] Figure 4 This is a top sectional view of the filter cartridge in this utility model.

[0017] Reference numerals: 1. Base; 2. Heating cylinder; 3. Storage cylinder; 4. Filter cylinder; 5. Collection hopper; 6. Air pump; 7. Air inlet pipe; 8. Connecting pipe; 9. Buffer tank; 10. Liquefaction tank; 11. Exhaust pipe; 12. Extension pipe; 13. Cryogenic liquefaction pipe; 14. Glass tube; 15. U-shaped shell; 16. Liquid guide hopper; 17. Collection box; 18. Controller; 19. Negative pressure monitoring element; 20. Fixing frame; 21. Spring; 22. Connecting plate; 23. Fixing plate; 24. Trigger button; 25. Limiting telescopic rod; 26. Rubber telescopic cylinder; 27. Drain pipe. Detailed Implementation

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "inner," "outer," "left," and "right" in the specification, claims, or foregoing drawings indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] This utility model provides an acid recycling device, such as... Figure 1-4 As shown, the acid reuse device includes: a base 1; a heating cylinder 2 fixed to the top of the base 1 for heating; a storage cylinder 3 installed inside the heating cylinder 2 for storing filtered acid; a filter cylinder 4 detachably installed on the top of the storage cylinder 3 for filtering acid; a collection hopper 5 fixed to the top of the filter cylinder 4 for guiding the addition of acid; an air pump 6 installed on the top of the base 1 for generating negative pressure by evacuation, the air pump 6 having an air inlet pipe 7 extending into the storage cylinder 3; and a negative pressure monitoring element 19 installed on the storage cylinder 3 for monitoring the negative pressure state inside the storage cylinder 3.

[0021] In this embodiment, the heating cylinder 2 is used to increase the temperature of the acid in the storage cylinder 3, which is helpful for subsequent processing. The filter cylinder 4 is used to filter impurities in the acid, improving the purity of the acid. The collection hopper 5 makes the acid addition process more convenient and centralized. The air pump 6 (Taikun oil-free vacuum pump JP-180H) and the air inlet pipe 7 create a negative pressure environment, which helps to filter and collect the acid efficiently. The negative pressure monitoring device 19 can monitor the negative pressure status in the storage cylinder 3 in real time, ensuring the stable operation of the device.

[0022] In a further preferred embodiment of the present invention, a connecting pipe 8 for discharging acid gas is installed on one side of the storage cylinder 3, a buffer box 9 communicating with the connecting pipe is provided on the top of the base 1, a low-temperature liquefaction pipe 13 for liquefying acid gas is installed on the connecting pipe 8, and a collection box 17 for storing acid liquid is fixed on the top of the base 1 and connected to the low-temperature liquefaction pipe 13.

[0023] In this embodiment, by setting the connecting pipe 8, the acid gas generated in the storage cylinder 3 is effectively discharged. By setting the cryogenic liquefaction pipe 13, the acid gas is liquefied under low temperature conditions, which facilitates subsequent processing and collection. By setting the collection box 17, the liquefied acid can be safely stored, realizing resource reuse. Acid gas that cannot be liquefied in time enters the buffer box 9, which serves to buffer and store the acid gas, preventing direct emission of acid gas that may cause environmental pollution or equipment damage.

[0024] In a further preferred embodiment of the present invention, the cryogenic liquefaction tube 13 includes a glass tube 14 connected to the connecting tube 8, a U-shaped shell 15 disposed outside the glass tube 14, the inner wall of the U-shaped shell being connected to the glass tube by a connector, ice being filled between the U-shaped shell 15 and the glass tube, and a liquid guide hopper 16 installed at the bottom of the glass tube 14 and extending outside the U-shaped shell 15 for guiding the discharge of acid, the liquid guide hopper 16 extending into the collection box 17.

[0025] In this embodiment, by connecting a glass tube 14 to the connecting pipe, the acid gas is allowed to circulate within the pipe. This connection refers to cutting the connecting pipe into two sections and inserting a glass tube into one of them. The acid gas enters the glass tube from the connecting pipe and then enters the connecting pipe again, with the glass tube acting as a transition. By installing a U-shaped shell 15 over the glass tube 14 and filling the U-shaped shell 15 with ice, the acid gas inside the glass tube 14 is cooled at a low temperature, promoting its liquefaction. By installing a liquid guide hopper 16 and extending it outside the U-shaped shell 15 and inside the collection box 17, the liquefied acid can be smoothly discharged into the collection box 17.

[0026] In a further preferred embodiment of the present invention, a liquefied tank 10 is installed on one side of the buffer tank 9, and an extension pipe 12 for guiding gas delivery is provided between the buffer tank 9 and the liquefied tank 10. An exhaust pipe 11 extending into the liquefied tank 10 is installed at the exhaust end of the air pump 6. A drain pipe 27 is provided at the bottom of both the storage cylinder 3 and the liquefied tank 10, and a valve is provided on both drain pipes 27.

[0027] In this embodiment, by setting up a liquefaction tank 10, the acid gas is further liquefied. An extension pipe 12 is set between the buffer tank 9 and the liquefaction tank 10 to guide the gas transport and ensure that the acid gas can smoothly enter the liquefaction tank 10. By connecting the exhaust end of the air pump 6 to the exhaust pipe 11 and extending it into the liquefaction tank 10, the airflow generated by the air pump 6 can effectively send the acid gas into the liquefaction tank 10 for pressurization. By setting up a drain pipe 27 at the bottom of the storage cylinder 3 and the liquefaction tank 10 and equipping it with a valve, the discharge and control of waste liquid and liquefied acid liquid are facilitated.

[0028] In a further preferred embodiment of this utility model, the storage cylinder 3 is provided with an opening, and the negative pressure monitoring component 19 includes a fixed frame 20 installed in the opening, a connecting plate 22 installed above the fixed frame 20 by a spring 21, a rubber telescopic cylinder 26 installed between the edge of the connecting plate 22 and the storage cylinder 3, the rubber telescopic cylinder 26 being sleeved outside the opening, a limiting telescopic rod 25 disposed inside the spring 21 and connected between the fixed frame and the connecting plate, a fixed cavity 23 fixed on the storage cylinder 3 and accommodating the connecting plate and the rubber telescopic cylinder, and a trigger button 24 installed at the top of the fixed cavity 23 in contact with the connecting plate 22, the trigger button 24 being used to assist in controlling the start and stop of the air pump 6.

[0029] In this embodiment, by setting the fixing frame 20, the negative pressure monitoring component 19 is securely installed inside the opening of the storage cylinder 3. By installing the spring 21 and the connecting plate 22, the device can expand and contract according to changes in the negative pressure state inside the storage cylinder 3. By setting the rubber telescopic cylinder 26 and fitting it outside the opening, the expansion and contraction of the connecting plate 22 is made more stable, while preventing gas leakage. By setting the limiting telescopic rod 25 inside the spring 21, the expansion and contraction range of the spring 21 is limited, ensuring the accuracy of monitoring. Through the cooperation of the fixing plate 23 and the trigger button 24, when the negative pressure inside the storage cylinder 3 is lower than the set value, the connecting plate 22 can trigger the button 24, thereby assisting in controlling the start and stop of the air pump 6.

[0030] In a further preferred embodiment of the present invention, one-way valves are provided on the air inlet pipe 7, the exhaust pipe 11 and the extension pipe 12, an electric valve is provided on the connecting pipe 8, and a block for sealing the hopper 5 is detachably installed on the top of the hopper 5.

[0031] In this embodiment, by setting one-way valves on the inlet pipe 7, the exhaust pipe 11, and the extension pipe 12, the effect of preventing gas backflow is achieved, ensuring the directional flow of gas and avoiding equipment failure or safety accidents caused by gas backflow. By setting an electric valve on the connecting pipe 8, the acid gas flow can be remotely controlled, improving the automation level and ease of operation of the equipment. By detachably installing a plug on the top of the collecting hopper 5, the collecting hopper 5 can be effectively sealed when not in use, preventing dust or other impurities from entering and ensuring the purity of the acid solution.

[0032] In a further preferred embodiment of this utility model, the heating cylinder 2 is provided with a controller 18 for controlling the start and stop of the electrical equipment, the controller 18 is provided with a temperature sensor, the storage cylinder 3 is provided with an isolation cylinder, and clean water for auxiliary water bath heating is filled between the isolation cylinder and the storage cylinder 3, and the storage cylinder 3 is provided with a pressure relief valve.

[0033] In this embodiment, by setting up a controller 18 (CNC controller) and incorporating a built-in temperature sensor (DS18B20), the heating cylinder 2 and its internal electrical equipment are precisely controlled to start and stop, ensuring the safety and efficiency of the acid heating process. By setting up an isolation cylinder inside the storage cylinder 3 and filling it with clean water to form a water bath heating environment, the acid is heated evenly, avoiding acid decomposition or equipment damage caused by local overheating. By setting up a pressure relief valve on the storage cylinder 3, the pressure inside the storage cylinder 3 can be automatically released when it is too high, ensuring the safe operation of the equipment.

[0034] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An acid liquid recycling device, characterized by comprising: include: Base; A heating cylinder fixed to the top of the base for increasing temperature; A storage cylinder installed inside the heating cylinder for storing the filtered acid solution; A filter cartridge detachably mounted on top of the storage cylinder for filtering acid; a collection hopper fixed on top of the filter cartridge for guiding the addition of acid; An air pump is installed at the top of the base to generate negative pressure by drawing air, and the air pump has an air inlet pipe that extends into the storage cylinder. A negative pressure monitoring device is installed on the storage cylinder to monitor the negative pressure state inside the storage cylinder.

2. The acid liquor recycling apparatus of claim 1, wherein A connecting pipe for discharging acid gas is installed on one side of the storage cylinder. A buffer box communicating with the connecting pipe is provided on the top of the base. A cryogenic liquefaction pipe for liquefying acid gas is installed on the connecting pipe. A collection box for storing acid liquid is fixed on the top of the base and connected to the cryogenic liquefaction pipe.

3. The acid liquor recycling apparatus of claim 2, wherein The cryogenic liquefaction tube includes a glass tube connected to the connecting tube, a U-shaped shell disposed outside the glass tube, the inner wall of the U-shaped shell being connected to the glass tube by a connector, ice being filled between the U-shaped shell and the glass tube, and a liquid guide hopper installed at the bottom of the glass tube and extending outside the U-shaped shell for guiding the discharge of acid liquid, the liquid guide hopper extending into the collection tank.

4. The acid solution recycling device according to claim 2, wherein A liquefied tank is installed on one side of the buffer tank. An extension pipe for guiding gas delivery is provided between the buffer tank and the liquefied tank. An exhaust pipe extending into the liquefied tank is installed at the exhaust end of the air pump. Drain pipes are provided at the bottom of both the storage cylinder and the liquefied tank. Valves are provided on both drain pipes.

5. The acid solution recycling device according to claim 1, wherein The storage cylinder has an opening. The negative pressure monitoring device includes a fixed frame installed in the opening, a connecting plate installed above the fixed frame by a spring, a rubber telescopic cylinder installed between the edge of the connecting plate and the storage cylinder, the rubber telescopic cylinder being sleeved outside the opening, a limiting telescopic rod disposed inside the spring and connected between the fixed frame and the connecting plate, a fixed cavity fixed on the storage cylinder and accommodating the connecting plate and the rubber telescopic cylinder, and a trigger button installed at the top of the fixed cavity that contacts the connecting plate. The trigger button is used to assist in controlling the start and stop of the air pump.

6. The acid solution recycling device according to claim 4, wherein The air inlet pipe, exhaust pipe, and extension pipe are all equipped with one-way valves, the connecting pipe is equipped with an electric valve, and the top of the collection hopper is detachably equipped with a block for sealing the collection hopper.

7. The acid solution recycling device according to claim 1, wherein The heating cylinder is equipped with a controller for controlling the start and stop of electrical equipment. The controller contains a temperature sensor. The storage cylinder contains an isolation cylinder. Clean water for auxiliary water bath heating is filled between the isolation cylinder and the storage cylinder. The storage cylinder is equipped with a pressure relief valve.

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