Modular combined extraction unit and system suitable for metal extraction metallurgy

Abstract

The invention relates to the technical field of extraction, in particular to a modular combined extraction unit and system suitable for metal extraction metallurgy. According to the specific technical scheme, the modular combined extraction unit suitable for metal extraction metallurgy comprises a main mixing chamber and an auxiliary mixing chamber communicated with the main mixing chamber, stirrers are arranged in the main mixing chamber and the auxiliary mixing chamber respectively, the auxiliary mixing chamber is communicated with a liquid distribution tank or a liquid distribution pipe, and the liquid distribution tank or the liquid distribution pipe is communicated with the main mixing chamber. The liquid distribution tank or the liquid distribution pipe is connected with at least one clarifying chamber, at least one clarifying grid and at least one clarifying inclined plate are arranged in the clarifying chamber, the inclination angle of the clarifying inclined plate is 0-60 degrees, and the clarifying chamber is connected with a phase interface regulator through a valve. The extraction system disclosed by the invention is movable, does not need to be manufactured on site, can flexibly adjust the productivity, and is particularly suitable for metal extraction of small and medium-sized ores, and once the ores are mined, the extraction equipment can be flexibly decomposed and transported to the next production site by an automobile for continuous use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of extraction, in particular to a modular combined extraction unit and system suitable for metal extraction metallurgy. BACKGROUND

[0002] Metal extraction metallurgy mainly uses solvent extraction technology to realize separation based on the solubility difference of different metal ions in organic phase and aqueous phase. The extractant combines with the metal ion to form a metal organic compound, which is dissolved in an organic solvent, and selective extraction is realized by adjusting the extraction conditions (such as pH value, temperature). The traditional process flow includes pretreatment extraction, washing, stripping and regeneration steps.

[0003] The existing extraction system, especially the large extraction tank for producing copper sulfate from copper oxide ore by extraction method, has the problems of large size, cannot be moved as a whole, and must be manufactured and installed at the production site of extraction. Once manufactured, the size and production capacity are fixed. Therefore, based on the above problems, the present application provides an extraction system which can be flexibly disassembled and moved. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a modular combined extraction unit and system suitable for metal extraction metallurgy.

[0005] To achieve the above purpose, the present application realizes the following technical scheme:

[0006] The present application discloses a modular combined extraction unit suitable for metal extraction metallurgy, which comprises a main mixing chamber and a secondary mixing chamber communicating with the main mixing chamber, a stirrer is arranged in each of the main mixing chamber and the secondary mixing chamber, the secondary mixing chamber communicates with a liquid distribution tank or a liquid distribution pipe, the liquid distribution tank or the liquid distribution pipe is connected with at least one clarification chamber, at least one clarification grid and at least one clarification inclined plate are arranged in the clarification chamber, the inclination angle of the clarification inclined plate is 0-60°, and the clarification chamber is connected with an interfacial regulator through a valve.

[0007] Preferably, when the number of clarification chambers is greater than 1, the clarification chambers are arranged side by side on one side of the liquid distribution tank and communicate with the liquid distribution tank through a pipeline, and a control valve is arranged on the pipeline.

[0008] Preferably, the secondary mixing chamber communicates with the liquid distribution tank through a chute.

[0009] Preferably, when the number of clarification inclined plates is greater than 1, the clarification grid is arranged between adjacent two clarification inclined plates.

[0010] Preferably, the bottom of the main mixing chamber is a false bottom or a submerged chamber, and a partition plate is arranged in the false bottom or the submerged chamber.

[0011] Preferably, the phase interface regulator is connected with the clarification chamber through a pipeline, and a valve is arranged on the pipeline.

[0012] Preferably, the false bottom is a flat false bottom or a dimple false bottom; or, the sub-chamber is a flat sub-chamber or a dimple sub-chamber.

[0013] Preferably, the stirrer is arranged to be single-layer stirring, double-layer stirring or triple-layer stirring, the stirring impeller at the bottom layer of the main mixing chamber is a pump suction type mixing stirring impeller, the stirring impeller is an open type impeller or a semi-open type impeller, the blades of the stirring impeller are straight blades or involute type blades; the stirring blades at the upper layer are straight blades or variable cross-section blades, and the angle between the stirring blades and the solution plane in the main mixing chamber is 30-90°.

[0014] Correspondingly, an extraction system comprising a modular combined extraction unit suitable for metal extraction metallurgy, the extraction unit is arranged in plurality, arranged in sequence on the other side of the distribution liquid groove, the main mixing chamber on the added extraction unit and the preceding clarification chamber adjacent thereto are communicated, and the auxiliary mixing chamber on the added extraction unit is communicated with the distribution liquid groove on the extraction unit.

[0015] Preferably, the auxiliary mixing chamber is arranged in plurality, directly connected in sequence or connected in series through a pipeline, the auxiliary mixing chamber at the starting end is communicated with the main mixing chamber, the auxiliary mixing chamber at the terminal end is communicated with the distribution liquid groove through a chute, and the outlet of the clarification chamber is communicated with an expanded clarification chamber.

[0016] The present application has the following beneficial effects:

[0017] The extraction system disclosed by the present application is flexible and changeable, the auxiliary mixing chamber and the clarification chamber module can be respectively increased and reduced according to the production capacity requirement to realize different production capacity requirements. Moreover, the extraction system disclosed by the present application is movable, does not need to be made on site, the production capacity can be flexibly adjusted, and is particularly suitable for metal extraction of small and medium-sized mines. Once the mine is mined out, the extraction equipment can be flexibly disassembled and transported by car to the next production site for continuous use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a connection diagram of the main mixing chamber and the auxiliary mixing chamber, the left side is a flat false bottom, and the right side is a dimple false bottom;

[0019] Figure 2 It is a connection diagram of the extraction unit;

[0020] Figure 3 It is a connection diagram of the extraction system;

[0021] Figure 4 It is a connection diagram of the expanded clarification chamber;

[0022] In the figure: 1 main mixing chamber, 2 auxiliary mixing chamber, 3 stirrer, 4 liquid distribution tank, 5 clarification chamber, 6 clarification grid, 7 clarification inclined plate, 8 control valve, 9 phase interface regulator, 10 valve, 11 expanded clarification chamber. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0024] If not specifically indicated, the technical means used in the examples is the conventional means well known to those skilled in the art.

[0025] Reference Figures 1-2 The present application discloses a modular combined extraction unit suitable for metal extraction metallurgy, comprising a main mixing chamber 1 and an auxiliary mixing chamber 2 communicating with the main mixing chamber 1. In addition to the main mixing chamber, 1- n auxiliary mixing chambers can be selected to be connected in series. The main mixing chamber and the auxiliary mixing chamber can be directly connected or connected by pipes or chutes. The main mixing chamber and the auxiliary mixing chamber can be made into square or cylindrical shape. The false bottom of the main mixing chamber and the auxiliary mixing chamber can be flat or dimple type. The dimple type false bottom can fully improve the pumping capacity of the stirrer and reduce the height of the main mixing chamber and the auxiliary mixing chamber. A partition is arranged in the false bottom to separate the organic phase and the aqueous phase and balance the pumping capacity of the pump in the organic phase and the aqueous phase. Alternatively, the bottom of the main mixing chamber and the auxiliary mixing chamber is a submerged chamber, which can be a flat submerged chamber or a dimple type submerged chamber. A partition is arranged in the submerged chamber.

[0026] Further, a stirrer 3 is arranged in the main mixing chamber 1 and the auxiliary mixing chamber 2 respectively. According to different technical conditions, the stirrer 3 is arranged as single-layer stirring, double-layer stirring or triple-layer stirring. The stirring impeller at the bottom layer of the main mixing chamber 1 is a pump suction type mixing stirring impeller. The stirring impeller is an open type impeller or a semi-open type impeller. The blades are straight blades or involute type blades. The stirring blades at the upper layer are straight blades or variable cross-section blades. The angle between the stirring blades and the solution plane in the main mixing chamber 1 is 30-90°.

[0027] Further, the auxiliary mixing chamber 2 is communicated with the liquid distribution tank 4 or liquid distribution pipe, at least one clarification chamber 5 is connected on the liquid distribution tank 4 or liquid distribution pipe, at least one clarification grid 6 and at least one clarification inclined plate 7 are arranged in the clarification chamber 5, the horizontal direction of the clarification inclined plate 7 is inclined at an angle of 0-60°, and the clarification chamber 5 is connected with the phase interface regulator 9 through the valve 10. Specifically, the clarification chamber can be a shallow pool (smaller than the depth of the main and auxiliary mixing chambers) or a deep pool (the same as the depth of the main and auxiliary mixing chambers). The clarification chamber can be divided into 1-n clarification chambers and arranged in parallel on one side of the liquid distribution tank 4 and communicated with the liquid distribution tank 4 through a pipeline, and the pipeline is provided with a control valve 8. The mixed liquid after extraction is poured into the liquid distribution tank from the last auxiliary mixing chamber through a chute, and the control valve 8 is used to control the entering of the clarification chamber. In addition to the n clarification grids arranged in the clarification chamber, n clarification inclined plates are also arranged, and the angle of the clarification inclined plate is 0-60° in the horizontal direction, so that the clarification effect is improved, the content of the organic phase in the water phase after clarification is reduced, and as one of the embodiments, the clarification grid is arranged between the two clarification inclined plates. The phase interface regulator can be a gate or a screw regulating valve, which is connected with the outlet pipeline of the clarification chamber, and the water phase outlet of each clarification chamber is connected with the water phase outlet pipeline. The phase interface regulator can adjust the height of the phase interface and the water phase return flow. As another embodiment, the liquid distribution tank can also be selected as a liquid distribution pipe.

[0028] Reference Figure 3 , Figure 4 The application discloses an extraction system comprising modular combined extraction units suitable for metal extraction metallurgy, the extraction units are arranged in sequence on the other side of the liquid distribution tank 4, the main mixing chamber on the increased extraction unit is communicated with the previous clarification chamber 5 between adjacent extraction units, and the auxiliary mixing chamber on the increased extraction unit is communicated with the liquid distribution tank 4 on the extraction unit. Specifically, the plurality of extraction units are arranged in series and can be combined into extraction, washing and reverse extraction sections with the same function. Figure 3 For example, the main mixing chamber on the second extraction unit is communicated with the clarification chamber of the first extraction unit (when the clarification chamber is multiple, a plurality of pipelines are arranged to be communicated with the clarification chambers respectively), the main mixing chamber on the third extraction unit is communicated with the clarification chamber of the second extraction unit, and the arrangement mode of other extraction units is the same. The auxiliary mixing chamber 2 is communicated with the liquid distribution tank of each extraction unit. The phase interface regulators arranged on the second extraction unit are communicated with the main mixing chambers on the first and second extraction units respectively.

[0029] When it is required to improve the production capacity of the extraction system or the clarification time is required to be relatively long, the auxiliary mixing chamber and the clarification chamber can be further developed to rapidly reach the required production capacity. Different extraction sections can form a complete extraction system. The pipelines and valves are connected between the mixing chambers, between the clarification chambers and between the clarification chambers and the liquid distribution tank. For example, Figure 4The auxiliary mixing chambers 2 can be provided in plurality, connected in series in sequence directly or through pipes, the auxiliary mixing chamber 2 at the starting end is communicated with the main mixing chamber 1, and the auxiliary mixing chamber 2 at the tail end (or the last stage) is communicated with the liquid distribution groove 4 through a chute. The solution is uniformly distributed into each clarification chamber through a control valve. The mixed solution into a single or multiple clarification chambers can be controlled according to the production requirements. The outlet of the clarification chamber 5 is communicated with an expanded clarification chamber 11 through a pipe, and a valve is arranged on the pipe as required.

[0030] In the present application, the corresponding valves, pipes and other parts can be flexibly installed according to actual needs, except for special description.

[0031] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0032] The above-described embodiments are only descriptions of the preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A modular combined extraction unit suitable for metal extraction metallurgy, characterized in that: It includes a main mixing chamber (1) and a secondary mixing chamber (2) connected to the main mixing chamber (1). A stirrer (3) is provided in the main mixing chamber (1) and the secondary mixing chamber (2). The secondary mixing chamber (2) is connected to a liquid distribution tank (4) or a liquid distribution pipe. At least one clarification chamber (5) is connected to the liquid distribution tank (4) or the liquid distribution pipe. At least one clarification grid (6) and at least one clarification inclined plate (7) are provided in the clarification chamber (5). The inclination angle of the clarification inclined plate (7) is 0 to 60°. The clarification chamber (5) is connected to a phase interface regulator (9) through a valve (10).

2. The modular combined extraction unit suitable for metal extraction metallurgy according to claim 1, characterized in that: When the number of clarification chambers (5) is greater than one, they are connected in parallel to one side of the liquid distribution tank (4) and connected to the liquid distribution tank (4) through a pipe, on which a control valve (8) is provided.

3. A modular combined extraction unit suitable for metal extraction metallurgy according to claim 1, characterized in that: The secondary mixing chamber (2) is connected to the liquid distribution tank (4) via a chute.

4. A modular combined extraction unit suitable for metal extraction metallurgy according to claim 1, characterized in that: When the number of the clarifying inclined plates (7) is greater than one, the clarifying grid (6) is arranged between two adjacent clarifying inclined plates (7).

5. A modular combined extraction unit suitable for metal extraction metallurgy according to claim 1, characterized in that: The bottom of the secondary mixing chamber (2) and the main mixing chamber (1) is a false bottom or a submerged chamber, and a partition is provided in the false bottom or submerged chamber.

6. A modular combined extraction unit suitable for metal extraction metallurgy according to claim 1, characterized in that: The phase interface regulator (9) is connected to the clarification chamber (5) via a pipe, and a valve (10) is installed on the pipe.

7. A modular combined extraction unit suitable for metal extraction metallurgy according to claim 5, characterized in that: The false bottom is a flat false bottom or a crater-shaped false bottom; or, the submersible chamber is a flat submersible chamber or a crater-shaped submersible chamber.

8. A modular combined extraction unit suitable for metal extraction metallurgy according to claim 1, characterized in that: The stirrer (3) is configured as a single-layer stirrer, a double-layer stirrer or a triple-layer stirrer. The stirring impeller at the bottom of the main mixing chamber (1) is a pump-suction mixing impeller. The stirring impeller is an open impeller or a semi-open impeller, and its blades are straight blades or involute blades. The stirring blades in the upper layer are straight blades or variable cross-section blades. The angle between the stirring blades and the plane of the solution in the main mixing chamber (1) is 30 to 90°.

9. An extraction system comprising a modular combined extraction unit suitable for metal extraction metallurgy as described in any one of claims 1 to 8, characterized in that: Multiple extraction units are provided and are arranged sequentially on the other side of the liquid distribution tank (4). Between adjacent extraction units, the main mixing chamber (1) of the added extraction unit is connected to the adjacent previous clarification chamber (5), and the sub-mixing chamber (2) of the added extraction unit is connected to the liquid distribution tank (4) of the extraction unit.

10. A modular combined extraction system suitable for metal extraction metallurgy according to claim 10, characterized in that: Multiple sub-mixing chambers (2) are provided, which are directly connected or connected in series through pipes. The sub-mixing chamber (2) at the beginning is connected to the main mixing chamber (1), and the sub-mixing chamber (2) at the end is connected to the liquid distribution tank (4) through a chute. An extended clarification chamber (11) is connected to the outlet of the clarification chamber (5).

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