Purification and separation device for manganese ore leachate

Abstract

The utility model discloses a manganese ore leachate purification and separation device, which belongs to the technical field of preparation of hydrometallurgy electrode materials and comprises a purification tank, ultrasonic generators are fixedly mounted on two sides of the purification tank respectively; a stirring mechanism is arranged in the tank body and comprises a stirring shaft and a stirring paddle, the upper end of the stirring shaft is connected with a stirring motor fixed at the top of the purification tank, and the lower end of the stirring shaft is connected with the stirring paddle; a first feeding hole and a second feeding hole are simultaneously formed in the top of the purification tank; a discharging bottom cover of a metal filter screen is arranged at a discharging opening in the bottom of the purification tank, a discharging pipe and a blowback air pipe are connected to the outer portion of the discharging bottom cover, the other end of the discharging pipe is connected to a vacuum transfer pump, and the other end of the blowback air pipe is connected to a compressed air system. According to the utility model, the ultrasonic generator assists in strengthening and promoting the impurity removal reaction and accelerating the generation of particle precipitates, and meanwhile, high-frequency vibration inhibits the crystallization of manganese compounds, so that the device has the application advantages of greenness, high efficiency, low carbon and energy conservation.

Description

Technical Field

[0001] The utility model relates to a device for purifying and separating manganese ore leaching liquid, belonging to the technical field of hydrometallurgical electrode material preparation. Background Art

[0002] Electrolytic manganese dioxide is a new electrode material widely used in energy storage, chemical catalysis, environmental governance and other fields. Currently, electrolytic manganese dioxide is mainly made of manganese carbonate and pyrolusite as raw materials, and is prepared through processes such as sulfuric acid leaching, leachate purification and impurity removal, high-temperature electrolysis, stripping, washing, and drying. Among them, the removal of calcium, magnesium, iron, etc., the intermediate product manganese ore leachate, has a great impact on the purity, quality and application of the product. The existing method of purifying and removing impurities of manganese ore leachate mainly adds impurity removers to the reaction tank, mechanically stirs and mixes the precipitates, and then separates the solid and liquid through a gravity sedimentation tank or filter. There are problems with long purification time and high energy consumption for product concentration.

[0003] Some researchers have conducted research on optimizing and improving purification and impurity removal devices. According to the authorized national utility model patent (CN216986566U), a purification device for manganese sulfate electrolyte is disclosed, comprising a first container, an outer shaft, a support assembly, and a handle. A second container is disposed below the first container. A hollow inner shaft extending into the interior of the second container is disposed inside the first container. An external threaded section is disposed on the outer side of one end of the hollow inner shaft. A threaded barrel is sleeved on the outer side of one end of the hollow inner shaft. A filter cartridge is disposed on the inner side of the threaded barrel. An opening is provided inside one side of the hollow inner shaft. A filter screen is provided on the inner side of the hollow inner shaft on one side of the opening. Electric push rods are installed on both sides of the first container. An annular support plate is provided at the top of the electric push rod. An annular groove is provided inside the top of the annular support plate. An arc-shaped plate matching the annular groove is provided on one side of the bottom end of the handle. The support assembly comprises a support plate and a baffle. A slot is provided inside each of the support plate and the baffle. A rod is provided inside each slot. The device uses the filter screen and filter cartridge to perform multiple filtrations on the electrolyte, achieving a good filtration and purification effect. However, it is a traditional mechanical stirring and gravity sedimentation filtration series application device, and is not effective in reducing purification time, improving production efficiency and reducing production costs.

[0004] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of this application. Utility Model Content

[0005] The (main) purpose of the utility model is to provide a purification and separation device for manganese ore leachate to solve the problems of long purification time, low production efficiency and high energy consumption per unit product in the above-mentioned prior art.

[0006] The present invention may also have the following technical features:

[0007] A device for purifying and separating manganese ore leachate, characterized in that it includes a purification tank, with a first ultrasonic generator and a second ultrasonic generator installed on the left and right sides of the purification tank; a first feeding port, a stirring motor and a second feeding port are provided on the top of the purification tank, and the stirring shaft of the stirring motor is connected to a stirring paddle located inside the purification tank; a discharge port is provided at the bottom of the purification tank, the discharge port is mechanically connected to a discharge bottom cover, and the other end of the discharge bottom cover is closed to the discharge port by a locking structure, a metal filter is provided inside the discharge bottom cover, and a discharge pipe and a back-blowing air pipe are connected to the outside of the discharge bottom cover, the discharge pipe is connected to a vacuum suction pump, and the purification tank as a whole is supported and fixed by a bracket.

[0008] Preferably, the first ultrasonic generator and the second ultrasonic generator are composed of a plurality of ultrasonic vibrators arranged in parallel, and can ultrasonically act on the leachate system inside the purification tank when in operation.

[0009] Preferably, one end of the discharge bottom cover is mechanically connected to the discharge port, and the discharge bottom cover can be opened in a downward-expanding manner.

[0010] Preferably, the pore size of the metal filter is 5 μm, and the metal filter is fixed to the discharge bottom cover via a flange ring.

[0011] Preferably, the other end of the back-blowing air pipe is connected to a compressed gas system, and the back-blowing air pipe is provided with an air pipe control valve.

[0012] The beneficial effects of the present invention compared with the prior art include:

[0013] The utility model is based on the traditional mechanical stirring impurity removal device, and adds an ultrasonic generator auxiliary reaction mechanism. Through the ultrasonic action, the movement of molecules and ions in the leachate system is enhanced, the reaction activity of calcium and magnesium heavy metal impurities and impurity removers is improved, the generation of precipitated particles with a smaller solubility product constant is accelerated, and the efficiency of the purification and impurity removal reaction is improved.

[0014] The ultrasonic wave generated by the ultrasonic generator of this utility model produces a cavitation effect when propagating through a liquid, i.e., tiny bubbles form in the liquid and quickly burst. This cavitation effect can generate localized high temperatures, high pressures, and strong impact forces in the solution, destroying any crystal nuclei present in the solution, making it difficult for them to aggregate and grow, thereby inhibiting the crystallization of the active ingredient, manganese sulfate, in a high-concentration system. This method helps resolve the conflict between the need for a high-concentration leachate system that saves water and reduces energy consumption and preventing the crystallization of the active ingredient. It achieves the combined effects of improving the operation of high-concentration solution systems, reducing water consumption, reducing concentration energy consumption, and preventing the loss of active ingredients through crystallization.

[0015] The utility model provides a filter screen at the discharge port, combines the application of vacuum negative pressure extraction and high-pressure gas back-blowing anti-blocking device, and is beneficial to improving the solid-liquid separation efficiency and the operation stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the internal structure of the discharge bottom cover in a specific embodiment of the present utility model.

[0018] Description of reference numerals:

[0019] 1-purification tank; 2-first ultrasonic generator; 3-second ultrasonic generator; 4-first feeding port; 5-stirring motor; 6-second feeding port; 7-stirring shaft; 8-stirring paddle; 9-discharging port; 10-discharging bottom cover; 11-locking device; 12-backflush air pipe; 13-discharging pipe; 14-vacuum suction pump; 15-feed control valve; 16-air pipe control valve; 17-discharging pipe control valve; 18-bracket; 101-metal filter; 102-flange ring. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be emphasized that the following description is merely illustrative and is not intended to limit the scope and application of the present invention.

[0021] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts unless otherwise specifically specified.

[0022] like Figure 1 and 2As shown, a device for purifying and separating manganese ore leachate comprises a purification tank 1, wherein a first ultrasonic generator 2 and a second ultrasonic generator 3 are installed on the left and right outer sides of the purification tank 1; a first feeding port 4, a stirring motor 5 and a second feeding port 6 are provided on the top of the purification tank 1, and a stirring shaft 7 of the stirring motor 5 is connected to a stirring paddle 8 located inside the purification tank 1; a discharge port 9 and a discharge bottom cover 10 are provided at the bottom of the purification tank 1, one end of the discharge bottom cover 10 is mechanically connected to the discharge port 9, and the other end is provided with a locking structure 11; a metal filter screen 101 is provided inside the discharge bottom cover 10, and a discharge pipe 13 and a back-blowing air pipe 12 are connected to the outside of the discharge bottom cover 10, the discharge pipe 13 is connected to a vacuum pump 14, and the back-blowing air pipe 12 is connected to a compressed gas system; the purification tank 1 as a whole is supported and fixed by a bracket 18.

[0023] Specifically, the purification tank 1 is a double-layer stainless steel tank body, the bottom of which is welded to the circular discharge port 9, and the discharge port 9 is fixed to the discharge bottom cover 10 by mechanical means; a bracket 18 is installed on the outside of the purification tank 1 for support and fixation.

[0024] Specifically, the first ultrasonic generator 2 and the second ultrasonic generator 3 are composed of multiple ultrasonic arrays arranged in parallel, with a frequency between 20 kHz and 1 MHz. The ultrasonic action of the ultrasonic generator can enhance the impurity removal reaction activity of the leachate, quickly forming impurity precipitates, while the high-frequency vibration suppresses the formation of manganese sulfate crystals.

[0025] Specifically, one end of the discharge bottom cover 10 is mechanically connected to the discharge port 9 at the bottom of the septic tank 1, allowing it to be opened downward and secured when closed by a locking device 11. A layer of fine-mesh metal filter 101 is provided inside the discharge bottom cover 10. The metal filter 101 is fixed to the discharge bottom cover 10 with a flange ring 102 and a rubber ring. This structure facilitates the removal and replacement of the filter.

[0026] Specifically, the discharge bottom cover 10 is externally connected to a backflush air pipe 12 and a discharge pipe 13. The backflush air pipe 12 is equipped with a pipe control valve 16, which can be used to activate high-pressure backflush air at any time to resolve filter blockage issues. The discharge pipe 13 is connected to a vacuum pump 14, which accelerates the liquid discharge rate through negative pressure.

[0027] The working principle of the device is as follows: before the device is implemented, the locking device 11 of the discharge bottom cover is checked and started, the discharge pipe control valve 17 and the air pipe control valve 16 are closed, the working parameters of the first ultrasonic generator 2 and the second ultrasonic generator 3 are pre-set, and then the stirring motor 5 is started to perform low-speed stirring. At the same time, the manganese ore leachate to be purified is added through the first feeding port 4. After the volume of the leachate in the purification tank exceeds 1 / 2 of the volume capacity of the purification tank, the stirring power of the stirring motor 5 is adjusted, the first ultrasonic generator 2 and the second ultrasonic generator 3 are started, and the feed control valve is opened. 15. Add the pre-configured impurity remover at a uniform rate from the second feeding port 6. After the impurity remover fully reacts with the impurity components, open the vacuum pump 14 and the discharge pipe control valve 16 in sequence, and filter and discharge the liquid components through negative pressure, retaining the impurity precipitate particles in the purification tank 1. Adjust and shut down the power of the first ultrasonic generator 2, the second ultrasonic generator 3, and the stirring motor 5 according to the drop in the liquid level. After the liquid in the purification tank 1 is emptied, release the locking device 11, open the discharge bottom cover 10, collect the impurity precipitate particles, and proceed to the next step of processing. If the metal filter 101 becomes clogged during the liquid component discharge process, open the air pipe control valve 16 of the backflush air pipe 13 and use the backflush force of high-pressure gas to clear the metal filter 101.

[0028] Those skilled in the art will recognize that numerous variations to the foregoing description are possible, and that the examples and figures are intended only to describe one or more specific implementations.

[0029] Although what are considered exemplary embodiments of the present invention have been described and illustrated, it will be understood by those skilled in the art that various changes and substitutions may be made thereto without departing from the spirit of the present invention. In addition, many modifications may be made to adapt a particular situation to the teachings of the present invention without departing from the central concept of the present invention as described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but rather may include all embodiments and their equivalents falling within the scope of the present invention.

Claims

1. A device for purifying and separating manganese ore leachate, characterized in that: The invention comprises a purification tank (1), wherein a first ultrasonic generator (2) and a second ultrasonic generator (3) are installed on the left and right outer sides of the purification tank (1), a first feeding port (4), a stirring motor (5) and a second feeding port (6) are provided on the top of the purification tank (1), a stirring shaft (7) of the stirring motor (5) is connected to a stirring paddle (8) located inside the purification tank (1), a discharge port (9) and a discharge bottom cover (10) are provided at the bottom of the purification tank (1), the discharge bottom cover (10) has a locking device (11) for locking and closing the discharge bottom cover (10), a metal filter screen (101) is provided inside the discharge bottom cover (10), a discharge pipe (13) and a back-blowing air pipe (12) are connected to the outside of the discharge bottom cover (10), and the discharge pipe (13) is connected to a vacuum pump (14).

2. The device for purifying and separating manganese ore leachate according to claim 1, characterized in that: The first ultrasonic generator (2) and the second ultrasonic generator (3) are composed of a plurality of ultrasonic arrays arranged in parallel, and can ultrasonically act on the leaching liquid system inside the purification tank (1) when in operation.

3. The device for purifying and separating manganese ore leachate according to claim 1, characterized in that: One end of the discharge bottom cover (10) is mechanically connected to the discharge port (9), and the discharge bottom cover (10) can be opened in a downward unfolding manner.

4. The device for purifying and separating manganese ore leachate according to claim 1, characterized in that: The metal filter (101) has a pore size of 5 μm, and the metal filter (101) is connected and fixed to the discharge bottom cover (10) via a flange ring (102).

5. The device for purifying and separating manganese ore leachate according to claim 1, characterized in that: The other end of the back-blowing air pipe (12) is connected to a compressed gas system, and the back-blowing air pipe (12) is provided with an air pipe control valve (16).

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