Waste acid recycling device for chemical production

Abstract

The utility model relates to the field of chemical equipment, and discloses a waste acid recycling device for chemical production. The waste acid recycling device for chemical industry production comprises an outer sleeve barrel, an inner cylinder is slidably connected to the interior of the outer sleeve barrel, a filter screen is fixedly installed at the bottom end of the inner cylinder, a U-shaped table is fixedly installed at the bottom end of the interior of the outer sleeve barrel, a blocking block is fixedly connected to the top end of the U-shaped table, and the inner cylinder is attached to the top of the blocking block; the bottom end of the outer sleeve barrel is fixedly connected with a discharging pipe, the side end of the outer sleeve barrel is fixedly connected with an exhaust pipe, the side end of the top of the outer sleeve barrel is fixedly provided with a hinge, and the side end of the top of the outer sleeve barrel is rotationally connected with a top cover through the hinge. The device can be used for separating and purifying different types of acid liquor, is high in applicability and saves the production cost.

Description

Technical Field

[0001] This application belongs to the field of chemical equipment technology, specifically a waste acid recycling device for chemical production. Background Technology

[0002] Waste acid is often generated in chemical production. Direct discharge of untreated or unrecovered waste acid can cause environmental pollution. Waste acid recycling units are typically designed to recover and reuse acidic waste liquids produced during chemical production. Such units not only help reduce environmental pollution but also lower production costs and improve resource utilization.

[0003] For example, patent CN220317466U discloses a waste acid recycling device for chemical production, including a waste acid recovery tank, a filter chamber, and an adsorption chamber. Its key technical features are: the bottom surface of the filter chamber is a conical filter plate; the lower end of the conical filter plate is equipped with a sealing plug, and a driving rod is fixed at the center of the sealing plug; the lower end of the driving rod passes through the sealing plug and fixes a limiting cylinder with a lower opening; the adsorption chamber has a lower fixed plate and an upper moving plate; the upper moving plate, the lower fixed plate, and the side wall of the waste acid recovery tank surround and form an adsorption resin loading box structure; the upper moving plate and the lower fixed plate are both hollow structures with filter screens attached to their surfaces; a limiting rod is provided at the center of the upper moving plate, which inserts and cooperates with the limiting cylinder; a stirring motor is fixed at the center of the bottom of the waste acid recovery tank; the upper end of the stirring shaft of the stirring motor passes through the center of the lower fixed plate and fixes the stirring paddle. This device reduces the difficulty of cleaning the adsorption resin, ensures the cleaning efficiency and regeneration rate of the adsorption resin, thereby ensuring the effectiveness of the waste acid recycling device.

[0004] However, the waste acid recycling device for chemical production described in this application has poor acid recovery and utilization efficiency and lacks separation and purification equipment, resulting in poor utilization rate. Utility Model Content

[0005] The purpose of this application is to provide a waste acid recycling device for chemical production, in order to solve the problem that the above-mentioned waste acid recycling device for chemical production has poor acid recovery and utilization effect and lacks separation and purification device, resulting in poor utilization rate.

[0006] The technical solution adopted in this application is as follows: A waste acid recycling device for chemical production includes an outer tank, an inner cylinder slidably connected inside the outer tank, a filter screen fixedly installed at the bottom end of the inner cylinder, a U-shaped platform fixedly installed at the bottom end of the inner tank, a blocking block fixedly connected to the top end of the U-shaped platform, the top of the blocking block fitting against the inner cylinder, a discharge pipe fixedly connected to the bottom end of the outer tank, an exhaust pipe fixedly connected to the side end of the outer tank, a hinge fixedly installed at the top side end of the outer tank, and a top cover rotatably connected to the top side end of the outer tank via the hinge.

[0007] By adopting the above technical solution, the inner cylinder is used to add waste acid and the corresponding alkaline solution for a neutralization reaction, producing the corresponding salt precipitate and water. In use, waste acid and alkaline solution are first added to the inner cylinder, and the motor is started to drive the stirring device to align and stir, facilitating a complete reaction to produce precipitate and water. After the reaction is complete, the electric telescopic rod is activated to drive the rotating rod away from the inner cylinder, simultaneously lifting the inner cylinder upwards from the inside of the outer tank. As the inner cylinder moves upwards, the filter screen can be removed from the blockage, allowing the aqueous solution to drain from the inner cylinder and collect inside the outer tank. Simultaneously, the precipitate is removed and collected from the inner cylinder. When some acid solution is difficult to react, it can be directly collected inside the outer tank. The inner cylinder is then removed, the top cover is replaced, and water and acid are separated by distillation. The distilled gas can be discharged from the exhaust pipe.

[0008] In a preferred embodiment, a retaining plate is fixedly connected to the top of the inner cylinder, and a retaining plate is slidably connected to the top of the outer cylinder.

[0009] By adopting the above technical solution, the clamping plate is used to secure the inner cylinder to the surface of the outer cylinder. This also facilitates the subsequent upward lifting of the inner cylinder to remove the sediment.

[0010] In a preferred embodiment, a fixing frame is fixedly connected to the top of the outer casing, and a first mounting platform is fixedly installed on the top of the fixing frame.

[0011] By adopting the above technical solution, the first mounting platform is used to provide space for installing the electric telescopic rod and the second mounting platform, while also leaving a distance for removing the inner cylinder, so as to facilitate the subsequent removal of the inner cylinder and the covering of the top cover.

[0012] In a preferred embodiment, an electric telescopic rod is fixedly mounted on the surface of the first mounting platform, a second mounting platform is fixedly mounted on the top of the electric telescopic rod, and a motor is fixedly mounted on the surface of the second mounting platform.

[0013] By adopting the above technical solution, the electric telescopic rod can drive the second mounting platform and the motor to move up and down, and adjust the distance between the stirring device at the lower end of the motor and the inner cylinder.

[0014] In a preferred embodiment, a rotating rod is fixedly connected to the bottom end of the motor, and a stirring rod is fixedly connected to the side end of the rotating rod.

[0015] By adopting the above technical solution, the electric telescopic rod can drive the second mounting platform and the motor to move up and down, and adjust the distance between the stirring device at the lower end of the motor and the inner cylinder.

[0016] In a preferred embodiment, a valve is fixedly installed on the surface of the discharge pipe, and a heater is fixedly installed on the surface of the outer casing.

[0017] By adopting the above technical solution, rotating the valve can control the discharge of the solution from the discharge pipe, facilitating collection, recycling, and reuse. The heater can heat the solution in the outer tank and can distill and separate difficult-to-react acids, facilitating recycling.

[0018] In a preferred embodiment, a mounting bracket is fixedly installed on the side end of the outer casing, and a support leg is fixedly connected to the bottom of the mounting bracket.

[0019] By adopting the above technical solution, the mounting bracket is installed on the bottom outer side of the outer casing and can be used to install support legs. The support legs are used to fix the outer casing, thereby improving the stability of the device.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0021] In this application, during use, waste acid and alkaline solutions are first added to the inner cylinder. The motor is then started to drive the stirring device for proper mixing, facilitating a complete reaction that produces precipitate and water. After the reaction is complete, the electric telescopic rod is activated, driving the rotating rod to move away from the inner cylinder, simultaneously lifting the inner cylinder upwards from the inside of the outer tank. As the inner cylinder moves upwards, the filter screen can move away from the blockage, allowing the aqueous solution to drain from the inner cylinder and collect inside the outer tank. Simultaneously, the precipitate is removed and collected from the inner cylinder. When some acid solution is difficult to react, it can be directly collected inside the outer tank. The inner cylinder is then removed, the top cover is replaced, and water and acid are separated by distillation. The distilled gas can be discharged from the exhaust pipe. This device can separate and purify different types of acid solutions, offering strong applicability and saving production costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a waste acid recycling device for chemical production according to this application;

[0023] Figure 2 This is a schematic plan view of the internal structure of the outer casing in this application;

[0024] Figure 3 This is a schematic diagram of the structure of the tank mixing device in this application.

[0025] The markings in the diagram are: 1. Outer drum; 2. Mounting frame; 3. Support leg; 4. Hinge; 5. Top cover; 6. Inner cylinder; 7. Fixing frame; 8. First mounting platform; 9. Discharge pipe; 10. Valve; 11. Clamping plate; 12. Exhaust pipe; 13. Heater; 14. Filter screen; 15. Block; 16. U-shaped platform; 17. Electric telescopic rod; 18. Second mounting platform; 19. Motor; 20. Rotating rod; 21. Stirring rod. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Example:

[0028] Reference Figure 1-3 A waste acid recycling device for chemical production includes an outer tank 1, an inner cylinder 6 slidably connected inside the outer tank 1, a filter screen 14 fixedly installed at the bottom of the inner cylinder 6, a U-shaped platform 16 fixedly installed at the bottom of the inner tank 1, a blocking block 15 fixedly connected to the top of the U-shaped platform 16, and the top of the blocking block 15 fitting against the inner cylinder 6. A discharge pipe 9 is fixedly connected to the bottom of the outer tank 1, an exhaust pipe 12 is fixedly connected to the side of the outer tank 1, and a hinge 4 is fixedly installed at the top side of the outer tank 1, with a top cover 5 rotatably connected to the top side of the outer tank 1 via the hinge 4. The interior of the outer tank 1 is divided into an acid-base neutralization cylinder and a purification and separation cylinder. The interior of the inner cylinder 6 is used to add waste acid and the corresponding alkaline solution for a neutralization reaction, producing corresponding salt precipitates and water. The user first adds waste acid and alkaline solution into the inner cylinder 6, then starts the motor 19 to drive the stirring device to align and stir, facilitating a full reaction to produce precipitate and water. After the reaction is complete, the electric telescopic rod 17 is activated to drive the rotating rod 20 away from the inner cylinder 6, simultaneously lifting the inner cylinder 6 upwards from the outer cylinder 1. As the inner cylinder 6 moves upwards, the filter screen 14 can be removed from the blockage 15, allowing the aqueous solution to drain from the inner cylinder 6 and be collected inside the outer cylinder 1. Simultaneously, the precipitate is removed and collected from the inner cylinder 6. If some acid solution is difficult to react, it can be directly collected inside the outer cylinder 1. The inner cylinder 6 is then removed, the top cover 5 is placed on top, and water and acid are separated by distillation. The distilled gas can be discharged from the exhaust pipe 12.

[0029] Reference Figure 2 A retaining plate 11 is fixedly connected to the top of the inner cylinder 6, and a retaining plate 11 is slidably connected to the top of the outer cylinder 1. The retaining plate 11 is used to hold the inner cylinder 6 onto the surface of the outer cylinder 1. It also facilitates the subsequent upward lifting of the inner cylinder 6 to remove the sediment.

[0030] Reference Figure 1 and Figure 3 A fixing frame 7 is fixedly connected to the top of the outer casing 1, and a first mounting platform 8 is fixedly installed on the top of the fixing frame 7. The fixing frame 7 and the first mounting platform 8 are used to provide space for installing the electric telescopic rod 17 and the second mounting platform 18, which facilitates the subsequent removal of the inner casing 6 and the closing of the top cover 5.

[0031] Reference Figure 3 An electric telescopic rod 17 is fixedly mounted on the surface of the first mounting platform 8. A second mounting platform 18 is fixedly mounted on the top of the electric telescopic rod 17. A motor 19 is fixedly mounted on the surface of the second mounting platform 18. Activating the electric telescopic rod 17 can drive the second mounting platform 18 and the motor 19 to move up and down, adjusting the distance between the stirring device at the lower end of the motor 19 and the inner cylinder 6.

[0032] Reference Figure 3 A rotating rod 20 is fixedly connected to the bottom end of the motor 19, and a stirring rod 21 is fixedly connected to the side end of the rotating rod 20. Starting the motor 19 can drive the rotating rod 20 to rotate, which in turn drives the stirring rod 21 to rotate, stirring the liquid inside the inner cylinder 6 and increasing the reaction rate.

[0033] Reference Figure 1 and Figure 2 A valve 10 is fixedly installed on the surface of the discharge pipe 9, and a heater 13 is fixedly installed on the surface of the outer tank 1. Rotating the valve 10 controls the discharge of the solution from the discharge pipe 9, facilitating collection, recycling, and reuse. The heater 13 heats the solution in the outer tank 1 and can distill and separate difficult-to-react acid solutions, facilitating recycling.

[0034] Reference Figure 1 A mounting bracket 2 is fixedly installed on the side of the outer casing 1, and a support leg 3 is fixedly connected to the bottom of the mounting bracket 2. The mounting bracket 2 is installed on the outer bottom of the outer casing 1 and can be used to install the support leg 3. The support leg 3 is used to fix the outer casing 1, thereby improving the stability of the device.

[0035] The implementation principle of an embodiment of a waste acid recycling device for chemical production in this application is as follows: The outer tank 1 is divided into an acid-base neutralization cylinder and a purification and separation cylinder. The inner tank 6 is used to add waste acid and the corresponding alkaline solution for a neutralization reaction, producing the corresponding salt precipitate and water. In use, waste acid and alkaline solution are first added to the inner tank 6, and the motor 19 is started to drive the stirring device to align and stir, facilitating a full reaction to produce precipitate and water. After the reaction is completed, the electric telescopic rod 17 is started to drive the rotating rod 20 away from the inner tank 6, and at the same time, the inner tank 6 is lifted upward from the inside of the outer tank 1. When the inner tank 6 moves upward, the filter screen 14 can be moved away from the block 15, and the aqueous solution can be discharged from the inside of the inner tank 6 and collected into the inside of the outer tank 1. At the same time, the precipitate is taken out from the inner tank 6 and collected. When some acid is difficult to react, it can be directly collected into the inside of the outer tank 1. The inner tank 6 is taken out and the top cover 5 is closed. Water and acid are separated by distillation, and the distilled gas can be discharged from the exhaust pipe 12. The clamping plate 11 is used to secure the inner cylinder 6 to the surface of the outer casing 1. It also facilitates the subsequent upward lifting of the inner cylinder 6 to remove the sediment. Activating the electric telescopic rod 17 moves the second mounting platform 18 and the motor 19 up and down, adjusting the distance between the stirring device at the lower end of the motor 19 and the inner cylinder 6. Activating the motor 19 drives the rotating rod 20 to rotate, which in turn drives the stirring rod 21 to rotate, stirring the liquid inside the inner cylinder 6 and increasing the reaction rate. This device can separate and purify different types of acid solutions, offering strong applicability and saving production costs.

[0036] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A device for recycling waste acid used in chemical production, comprising an outer barrel (1), characterized in that: The inner tube (6) is slidably connected in the outer barrel (1), the bottom end of the inner tube (6) is fixedly installed with a filter screen (14), the inner bottom of the outer barrel (1) is fixedly installed with a U-shaped table (16), the top end of the U-shaped table (16) is fixedly connected with a plug (15), the top of the plug (15) is fitted with an inner tube (6), the bottom end of the outer barrel (1) is fixedly connected with a discharge pipe (9), the side end of the outer barrel (1) is fixedly connected with an exhaust pipe (12), the top side end of the outer barrel (1) is fixedly installed with a hinge (4), and the top side end of the outer barrel (1) is rotatably connected with a top cover (5) through the hinge (4).

2. The waste acid recycling device for chemical production of claim 1, characterized in that: The top of the inner tube (6) is fixedly connected with a clamping plate (11), and the top of the outer barrel (1) is slidably connected with the clamping plate (11).

3. The waste acid recycling device for chemical production of claim 2, characterized in that: The top of the outer barrel (1) is fixedly connected with a fixing frame (7), and the top of the fixing frame (7) is fixedly installed with a first mounting table (8).

4. The waste acid recycling device for chemical production of claim 3, characterized in that: The surface of the first mounting table (8) is fixedly installed with an electric telescopic rod (17), the top of the electric telescopic rod (17) is fixedly installed with a second mounting table (18), and the surface of the second mounting table (18) is fixedly installed with a motor (19).

5. The waste acid recycling device for chemical production of claim 4, characterized in that: The bottom end of the motor (19) is fixedly connected with a rotating rod (20), and the side end of the rotating rod (20) is fixedly connected with a stirring rod (21).

6. The waste acid recycling device for chemical production of claim 5, characterized in that: The surface of the discharge pipe (9) is fixedly installed with a valve (10), and the surface of the outer barrel (1) is fixedly installed with a heating machine (13).

7. The waste acid recycling device for chemical production of claim 6, characterized in that: The side end of the outer barrel (1) is fixedly installed with a mounting frame (2), and the bottom of the mounting frame (2) is fixedly connected with a supporting leg (3).

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