Organic saponification apparatus

Abstract

The utility model discloses an organic saponification device, through setting up mixing chamber, first compartment, second compartment and soap after organic room in the device shell, organic extractant and saponification agent respectively from first compartment and second compartment lower part enter mixing chamber, and the radial shear force, axial lifting force of saponification mixture are provided by turbine, and the primary mixing reaction is carried out while constantly lifting the mixed liquid, and the second mixing reaction is carried out in the action of screw belt blade, and the axial circulation is promoted by screw blade, thereby realizing the high -intensity axial, radial, tangential three -dimensional flow of mixed liquid, flash saponification, after the reaction is completed, and soap after organic is overflowed to soap after organic room from the top of mixing chamber, has the advantage that the extractant, saponification agent carry out continuous liquid inlet, differential mixing, flash saponification, and the saponification rate is improved greatly, effectively solve the problem that traditional saponification equipment energy consumption is higher, and the area is larger, and the organic saponification rate is low, and then influence the extraction yield and quality.

Description

Technical Field

[0001] This utility model belongs to the field of hydrometallurgical extraction, and in particular relates to an organic saponification reaction device. Background Technology

[0002] Extraction of non-ferrous metals such as nickel and cobalt is divided into pyrometallurgical and hydrometallurgical processes. Pyrometallurgical smelting is mainly suitable for sulfide nickel ores, offering fast processing speeds but also high costs, large carbon emissions, and high raw material procurement costs. Hydrometallurgical smelting, on the other hand, is suitable for processing low-grade laterite nickel ores. It boasts a wide range of raw material sources, low production costs, and significant environmental advantages, and has become the mainstream process for newly built nickel-cobalt smelting projects. The hydrometallurgical process mainly consists of acid leaching, purification, extraction, and evaporation crystallization. In the extraction process, the extractant and saponification method are selected and adapted based on the impurity element content of different raw materials to achieve the separation and extraction of nickel and cobalt from impurities such as calcium, magnesium, manganese, iron, and zinc. During extraction, the organic saponification reaction rate determines the organic loading capacity for valuable nickel and cobalt metals, thus determining the extraction process output, and also the organic impurity removal capacity, thus determining the product quality. Currently, traditional reactors cannot achieve continuous, rapid, and efficient saponification reactions, resulting in low organic saponification rates and high energy consumption. Therefore, solving the problem of inefficient saponification equipment is crucial for expanding production, improving quality, increasing efficiency in the extraction process, and improving the yield of valuable metals. Utility Model Content

[0003] (1) Technical problem to be solved: This invention addresses the prominent issues of low saponification efficiency, high energy consumption, and inability to achieve continuous saponification in existing organic saponification reactors. It innovatively improves upon traditional saponification kettles, providing a reaction device that enables continuous liquid feeding, differential mixing, flash saponification, and significantly increases the saponification rate. This further satisfies the requirements of extraction process capacity and impurity removal capabilities for organic saponification rate.

[0004] (2) The technical solution adopted by this utility model is as follows: An organic saponification reaction apparatus includes an outer casing, a mixing chamber located in the center of the casing, a first compartment and a second compartment located on one side of the mixing chamber, and a post-saponification organic chamber located on the other side of the mixing chamber. The bottom of the first compartment is connected to the mixing chamber via an organic channel, and the bottom of the second compartment is connected to the mixing chamber via a liquid alkali channel. A combined stirring device is installed in the mixing chamber, including spiral blades and ribbon blades on a stirring shaft and a turbine located at the lower end of the stirring shaft. The stirring shaft of the combined stirring device is connected to a drive motor. An overflow port is provided between the upper part of the mixing chamber and the post-saponification organic chamber. An organic liquid inlet section is connected to the upper part of the first compartment, a liquid alkali inlet section is connected to the upper part of the second compartment, and a post-saponification organic outlet section is connected to the bottom of the post-saponification organic chamber.

[0005] A further technical solution is that the top of the device housing is a top cover, and a water seal structure is provided between the top cover and the device housing. The water seal structure includes a water seal groove located on the device housing, and an insert plate matching the water seal groove is provided at the bottom of the top cover.

[0006] A further technical solution is that the turbine is a closed disc turbine, which includes a disc fixed at the lower end of the stirring shaft, and six sets of arc-shaped blades are evenly distributed on the bottom of the disc.

[0007] A further technical solution is that the spiral blade is fixed on the stirring shaft, the ribbon blade is sleeved on the spiral blade, the ribbon blade includes two, and the ribbon blade is connected to the stirring shaft through a support frame.

[0008] A further technical solution is that a No. 1 flow guide base and a No. 2 flow guide base are provided at the bottom of the mixing chamber, and the gaps between the No. 2 flow guide base and the No. 1 flow guide base on both sides in the circumferential direction form a liquid alkali channel and an organic channel, respectively.

[0009] A further technical solution involves installing baffles on the inner wall of the mixing chamber.

[0010] (3) Due to the adoption of the above technical solution, the beneficial effects of this utility model are: By setting up a mixing chamber, a first compartment, a second compartment, and a post-soap organic chamber inside the device casing, the organic extractant and saponifying agent enter the mixing chamber from the lower part of the first compartment and the second compartment, respectively. The turbine provides radial shear force and axial lifting force for the saponification mixing, continuously lifting the mixture while carrying out the initial mixing reaction. Subsequently, a second mixing reaction is carried out by the action of the spiral blades, and the spiral blades promote axial circulation. This achieves high-intensity axial, radial, and tangential three-dimensional flow of the mixture, enabling flash saponification. After the reaction is completed, the post-soap organic overflows from the top of the mixing chamber to the post-soap organic chamber.

[0011] This invention is applicable to the field of hydrometallurgical extraction, possessing advantages such as continuous liquid feeding of extractant and saponifying agent, differential mixing, flash saponification, and significantly improved saponification rate. The innovative design of the organic saponification reaction device technically improves the structure and working principle of traditional saponification kettles, effectively solving the problems of high energy consumption, large footprint, and low organic saponification rate in traditional saponification equipment, which consequently affect extraction yield and quality.

[0012] This invention features a sophisticated device design, exhibiting excellent adaptability in wet extraction processes of valuable metals such as nickel and cobalt. It boasts high reaction efficiency and low energy consumption. Through a combination of spiral blades, helical blades, and a closed disc turbine within a confined mixing chamber, it achieves high-intensity three-dimensional flow and rapid, thorough saponification of the organic extractant and saponifying agent. This significantly increases the extraction yield and reduces the impurity content of the product. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of this utility model; Figure 2 Side view of this utility model; Figure 3 Partial three-dimensional sectional view of this utility model; Figure 4 A three-dimensional schematic diagram of the combined stirring device described in this utility model; Figure 5 A three-dimensional cross-sectional view of this utility model. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0015] like Figures 1-5 As shown.

[0016] Example 1: An organic saponification reaction apparatus includes an outer shell, a mixing chamber 13 disposed in the middle of the outer shell, a first compartment 7 and a second compartment 8 disposed on one side of the mixing chamber 13, and a post-saponification organic chamber 16 disposed on the other side of the mixing chamber 13. The bottom of the first compartment 7 is connected to the mixing chamber 13 via an organic channel 12, and the bottom of the second compartment 8 is connected to the mixing chamber 13 via a liquid alkali channel 11. A combined stirring device 14 is disposed in the mixing chamber 13. The combined stirring device 14 includes a spiral blade 144 and a ribbon blade 143 located on a stirring shaft 141, and a turbine located at the lower end of the stirring shaft 141. The stirring shaft 141 of the combined stirring device 14 is connected to a drive motor 1. An overflow port is disposed between the upper part of the mixing chamber 13 and the post-saponification organic chamber 16. An organic liquid inlet section 5 is connected to the upper part of the first compartment 7, a liquid alkali inlet section 6 is connected to the upper part of the second compartment 8, and a post-saponification organic outlet section 17 is connected to the bottom of the post-saponification organic chamber 16. The turbine is a closed-type disc turbine 145, including a disc 146 fixed to the lower end of the stirring shaft 141, with six sets of arc-shaped blades 147 evenly distributed on the bottom of the disc. The spiral blade 144 is fixed on the stirring shaft 141, and the ribbon blade 143 is sleeved on the spiral blade 144. There are two ribbon blades 143, and the ribbon blades 143 are connected to the stirring shaft 141 through a support frame 142.

[0017] Working Process: The organic extractant and saponifying agent enter the first compartment 7 and the second compartment 8 respectively through the organic liquid inlet section 5 and the liquid alkali inlet section 6. Then, the organic extractant and saponifying agent converge at the bottom of the mixing chamber 13 through the organic channel 12 and the liquid alkali channel 11 respectively. At this time, the closed-loop disc turbine 14-5 provides radial shear force and axial lifting force for the saponification mixture, continuously lifting the mixture while conducting the initial mixing reaction. After the mixture is lifted, the ribbon blades 143 conduct a second mixing reaction, while the helical blades 144 promote axial circulation. This achieves high-intensity axial, radial, and tangential three-dimensional flow of the mixture, enabling flash saponification. After the reaction is complete, the post-saponification organics overflow from the top side of the mixing chamber 13 to the post-saponification organic chamber 16. Finally, it is discharged from the post-saponification organic outlet section 17 and transported to the next process. Simultaneously, all components of the device in contact with the liquid are made of PVC to meet the corrosion resistance requirements of different saponifying agents such as sodium soap and nickel soap. In the enclosed disc turbine 145, the disc serves to prevent the mixture from flowing axially along the stirring shaft. It works in conjunction with the arc-shaped blades to guide the mixture to the arc-shaped blade area for shearing and mixing, thereby improving the mixing efficiency.

[0018] Example 2: Based on Example 1, the top of the device housing is a top cover 3. A water seal structure is provided between the top cover 3 and the device housing. The water seal structure includes a water seal groove 4 located on the device housing. A matching insert plate is provided at the bottom of the top cover 3 to the water seal groove 4. The design and application of the water seal structure can effectively prevent the overflow of volatile organic gases, which is environmentally friendly. A #1 guide base 9 and a #2 guide base 10 are provided at the bottom of the mixing chamber 13. The gaps between the #2 guide base 10 and the #1 guide base 9 on both sides in the circumferential direction form a liquid alkali channel 11 and an organic channel 12, respectively. The bottom sides of the first compartment 7 and the second compartment 8 have openings connecting the organic channel 12 and the liquid alkali channel 11, respectively. The upper end of the stirring shaft 141 passes through the top cover 3 and is rotatably connected to it via a conventional bearing with sealing function. The upper end of the stirring shaft 141 is connected to the output shaft of the motor 1 via a coupling 2. A base is provided on the top of the top cover 3 to support and fix the motor 1. The motor 1 is a geared motor. An equipment bracket 18 is provided at the bottom of the device housing.

[0019] The above are merely preferred embodiments of this utility model.

Claims

1. An organic saponification reaction apparatus, characterized in that, The device includes a housing, with a mixing chamber (13) located in the middle of the housing. A first compartment (7) and a second compartment (8) are located on one side of the mixing chamber (13), and a post-soap organic chamber (16) is located on the other side of the mixing chamber (13). The bottom of the first compartment (7) is connected to the mixing chamber (13) via an organic channel (12), and the bottom of the second compartment (8) is connected to the mixing chamber (13) via a liquid alkali channel (11). A combined stirring device (14) is installed inside the mixing chamber (13). The combined stirring device (14) includes components located at... The stirring shaft (141) has a spiral blade (144) and a ribbon blade (143) on it, as well as a turbine located at the lower end of the stirring shaft (141). The stirring shaft (141) of the combined stirring device (14) is connected to a drive motor (1). An overflow port is provided between the upper part of the mixing chamber (13) and the post-soap organic chamber (16). The upper part of the first compartment (7) is connected to an organic liquid inlet section (5). The upper part of the second compartment (8) is connected to a liquid alkali inlet section (6). The bottom of the post-soap organic chamber (16) is connected to a post-soap organic outlet section (17).

2. The organic saponification reaction apparatus according to claim 1, characterized in that, The top of the device housing is a cover (3), and a water seal structure is provided between the cover (3) and the device housing. The water seal structure includes a water seal groove (4) located on the device housing, and a matching insert plate is provided at the bottom of the cover (3) for the water seal groove (4).

3. The organic saponification reaction apparatus according to claim 1, characterized in that, The turbine is a closed disc turbine (145), which includes a disc (146) fixed at the lower end of the stirring shaft (141), and six sets of arc-shaped blades (147) are evenly distributed at the bottom of the disc (146).

4. The organic saponification reaction apparatus according to claim 1, characterized in that, The spiral blade (144) is fixed on the stirring shaft (141), and the ribbon blade (143) is sleeved on the spiral blade (144). There are two ribbon blades (143), and the ribbon blades (143) are connected to the stirring shaft (141) through the support frame (142).

5. The organic saponification reaction apparatus according to claim 1, characterized in that, The bottom of the mixing chamber (13) is provided with a No. 1 flow guide base (9) and a No. 2 flow guide base (10). The gaps between the No. 2 flow guide base (10) and the No. 1 flow guide base (9) in the circumferential direction respectively form a liquid alkali channel (11) and an organic channel (12).

6. The organic saponification reaction apparatus according to claim 1, characterized in that, A baffle plate (15) is provided on the inner wall of the mixing chamber (13).

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