Heavy metal ion extraction device with secondary mixing structure

Abstract

This utility model belongs to the technical field of heavy metal ion extraction devices, and particularly relates to a heavy metal ion extraction device with a secondary mixing structure. It includes a primary mixing tank with a water inlet on its outer wall. A first motor is fixedly connected to the top of the primary mixing tank, and a first rotating shaft is fixedly connected to the output end of the first motor. A mixing plate is fixedly connected to the outer wall of the first rotating shaft. A secondary mixing tank is located on one side of the primary mixing tank. Three sets of second motors with progressively decreasing rotation speeds operate by setting stirring plates and sedimentation plates. The operation of the second motors drives the stirring plates at the bottom of the second rotating shafts to rotate, mixing the heavy metal ion solution with a coagulant or adsorbent. By first rapidly mixing the solution and then slowly mixing it, the heavy metal ion solution is fully mixed with the coagulant or adsorbent, improving the floc formation efficiency. Then, the floc settles by its own gravity through the inclined sedimentation plate.

Description

Technical Field

[0001] This utility model belongs to the technical field of heavy metal ion extraction devices, and particularly relates to a heavy metal ion extraction device with a secondary mixing structure. Background Technology

[0002] Heavy metal ion extraction devices are specialized equipment used to recover heavy metals (such as lead, cadmium, mercury, copper, zinc, etc.) from wastewater, industrial waste liquid, or ore leachate. By adding chemical agents, heavy metal ions are made into insoluble precipitates. The core objective is to achieve efficient separation, enrichment, and recovery of heavy metals while reducing environmental pollution.

[0003] Existing heavy metal ion extraction devices typically require mixing heavy metal ions with chemical reagents for precipitation. However, the reaction between heavy metal ions and chemical reagents is often incomplete, resulting in low removal efficiency. Therefore, we propose a heavy metal ion extraction device with a secondary mixing structure. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a heavy metal ion extraction device with a secondary mixing structure, which improves the removal efficiency of heavy metal ions through multi-stage mixing and reaction.

[0005] This utility model provides a heavy metal ion extraction device with a secondary mixing structure, including a primary mixing tank. The outer wall of the primary mixing tank has a water inlet. A first motor is fixedly connected to the top of the primary mixing tank, and a first rotating shaft is fixedly connected to the output end of the first motor. A mixing plate is fixedly connected to the outer wall of the first rotating shaft. A secondary mixing tank is located on one side of the primary mixing tank. A water pump is installed at the connection between the primary and secondary mixing tanks. A partition is fixedly connected to the inner wall of the secondary mixing tank, and an overflow groove is formed on the inner wall of the partition. A second motor is fixedly connected to the top of the secondary mixing tank, and a second rotating shaft is fixedly connected to the output end of the second motor. A stirring plate is fixedly connected to the bottom end of the second rotating shaft. A sedimentation plate is fixedly connected to the inner wall of the secondary mixing tank, and a drain outlet is fixedly connected to the outer wall of the secondary mixing tank.

[0006] Based on the above structure, three sets of second motors with successively decreasing rotation speeds operate. The operation of the second motor drives the stirring plate at the bottom of the second rotating shaft to rotate, mixing the heavy metal ion solution with the coagulant or adsorbent. By first mixing the solution quickly and then slowly, it is easy for the heavy metal ion solution to be fully mixed with the coagulant or adsorbent, thereby improving the floc formation efficiency. Then, the floc settles by its own gravity through the inclined sedimentation plate.

[0007] Preferably, the bottom of the primary mixing tank is conical. In this embodiment, by setting a primary mixing tank with a conical bottom, it is beneficial to achieve the preliminary mixing and precipitation operation of heavy metal ions with chemical agents such as precipitants and chelating agents.

[0008] Preferably, the first rotating shaft is in the shape of an inverted "T", the mixing plate is in the shape of an inclined plate, and there are two sets of mixing plates. The two sets of mixing plates are centrally symmetrical about the central axis of the first rotating shaft. In this embodiment, it is convenient for the first motor to drive the mixing plate to rotate through the first rotating shaft. The rotation of the mixing plate initially mixes the heavy metal ions with chemical agents such as precipitants and chelating agents, thereby improving the mixing and precipitation efficiency of heavy metal ions.

[0009] Preferably, there are two sets of partitions and three sets of second motors. The three sets of second motors and the two sets of partitions are equidistantly distributed along the top of the secondary mixing tank. In this embodiment, it is convenient to perform the partitioned precipitation operation of the heavy metal ion solution in the secondary mixing tank, which greatly shortens the precipitation time.

[0010] Preferably, the rotational speeds of the three sets of second motors decrease sequentially. In this embodiment, by setting the three sets of second motors with sequentially decreasing rotational speeds, the solution is first mixed quickly and then slowly.

[0011] Preferably, the overflow trough has a Z-shaped cross-section. In this embodiment, by setting an overflow trough with a Z-shaped cross-section, the separation operation after precipitation of heavy metal ion solution is achieved.

[0012] Preferably, the sedimentation plates are inclined and are distributed parallel to each other at equal intervals along the inner wall of the secondary mixing tank. In this embodiment, this facilitates the sedimentation of alum flocs by their own gravity through the inclined sedimentation plates.

[0013] The beneficial effects of this utility model are:

[0014] 1. This heavy metal ion extraction device with a secondary mixing structure uses three sets of second motors with sequentially decreasing rotation speeds, equipped with a stirring plate and a sedimentation plate. The second motors drive the stirring plate at the bottom of the second rotating shaft to rotate, mixing the heavy metal ion solution with the coagulant or adsorbent. By first mixing the solution quickly and then slowly, the heavy metal ion solution is fully mixed with the coagulant or adsorbent, improving the floc formation efficiency. Then, the floc settles by its own gravity through the inclined sedimentation plate.

[0015] 2. This heavy metal ion extraction device with a secondary mixing structure, by setting up a mixing plate, allows the operator to pour chemical agents such as precipitants and chelating agents into the primary mixing tank. Then, the first motor drives the mixing plate to rotate through the first rotating shaft. The rotation of the mixing plate initially mixes the heavy metal ions with the chemical agents such as precipitants and chelating agents. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the primary mixing tank of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the two-stage mixing tank of this utility model;

[0019] Figure 4 This is a schematic diagram of the stirring plate and sedimentation plate of this utility model.

[0020] The markings in the diagram are as follows:

[0021] 1. Primary mixing tank; 2. Water inlet; 3. First motor; 4. First rotating shaft; 5. Mixing plate; 6. Secondary mixing tank; 7. Water pump; 8. Baffle plate; 9. Overflow trough; 10. Second motor; 11. Second rotating shaft; 12. Stirring plate; 13. Sedimentation plate; 14. Drain outlet. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] This application discloses a heavy metal ion extraction device with a secondary mixing structure, including a primary mixing tank 1, a water inlet 2 on the outer wall of the primary mixing tank 1, a first motor 3 fixedly connected to the top of the primary mixing tank 1, a first rotating shaft 4 fixedly connected to the output end of the first motor 3, a mixing plate 5 fixedly connected to the outer wall of the first rotating shaft 4, a secondary mixing tank 6 on one side of the primary mixing tank 1, a water pump 7 at the connection between the primary mixing tank 1 and the secondary mixing tank 6, a partition 8 fixedly connected to the inner wall of the secondary mixing tank 6, an overflow groove 9 on the inner wall of the partition 8, a second motor 10 fixedly connected to the top of the secondary mixing tank 6, a second rotating shaft 11 fixedly connected to the output end of the second motor 10, a stirring plate 12 fixedly connected to the bottom end of the second rotating shaft 11, a sedimentation plate 13 fixedly connected to the inner wall of the secondary mixing tank 6, and a drain outlet 14 fixedly connected to the outer wall of the secondary mixing tank 6.

[0025] Based on the above structure, the three sets of second motors 10 with sequentially decreasing rotation speeds operate. The operation of the second motors 10 drives the stirring plate 12 at the bottom of the second rotating shaft 11 to rotate, mixing the heavy metal ion solution with the coagulant or adsorbent. By first mixing the solution quickly and then slowly, it is easy for the heavy metal ion solution to be fully mixed with the coagulant or adsorbent, thereby improving the floc formation efficiency. Then, the floc precipitates by its own gravity through the inclined sedimentation plate 13.

[0026] In one embodiment, the bottom of the primary mixing tank 1 is conical.

[0027] In this embodiment, by setting up a primary mixing tank 1 with a conical bottom, it is beneficial to achieve the preliminary mixing and precipitation operation of heavy metal ions with chemical agents such as precipitants and chelating agents.

[0028] In one embodiment, the first rotating shaft 4 is in the shape of an inverted "T", the mixing plate 5 is in the shape of an inclined plate, and there are two sets of mixing plates 5, which are centrally symmetrical about the central axis of the first rotating shaft 4.

[0029] In this embodiment, the first motor 3 drives the mixing plate 5 to rotate via the first rotating shaft 4. The rotation of the mixing plate 5 initially mixes the heavy metal ions with chemical agents such as precipitants and chelating agents, thereby improving the mixing and precipitation efficiency of heavy metal ions.

[0030] In one embodiment, two sets of partitions 8 are provided, and three sets of second motors 10 are provided. The three sets of second motors 10 and the two sets of partitions 8 are distributed at equal intervals along the top of the secondary mixing tank 6.

[0031] In this embodiment, it is convenient to perform zonal precipitation of heavy metal ion solution in the secondary mixing tank 6, which greatly shortens the precipitation time.

[0032] In one embodiment, the rotational speeds of the three sets of second motors 10 decrease sequentially.

[0033] In this embodiment, by setting three sets of second motors 10 with sequentially decreasing rotation speeds, the solution is first mixed quickly and then slowly.

[0034] In one embodiment, the overflow channel 9 has a "Z" shaped cross-section.

[0035] In this embodiment, the separation operation of heavy metal ion solution after precipitation is achieved by setting an overflow channel 9 with a "Z" shaped cross-section.

[0036] In one embodiment, the sedimentation plate 13 is inclined and is distributed parallel to each other at equal intervals along the inner wall of the secondary mixing tank 6.

[0037] In this embodiment, the alum flocs are facilitated to undergo sedimentation by their own gravity through the inclined sedimentation plate 13.

[0038] In this embodiment, the heavy metal ion extraction device with a secondary mixing structure is used in the following steps: First, the solution containing heavy metal ions is injected into the primary mixing tank 1 through the water inlet 2. At the same time, the operator pours chemical agents such as precipitants and chelating agents into the primary mixing tank 1. Then, the first motor 3 drives the mixing plate 5 to rotate through the first rotating shaft 4. The rotation of the mixing plate 5 initially mixes the heavy metal ions with the chemical agents such as precipitants and chelating agents.

[0039] Next, the water pump 7 operates to transport the initially mixed heavy metal ion solution to the secondary mixing tank 6. At the same time, the staff adds coagulant aids or adsorbents. Then, the three sets of second motors 10, with their speeds decreasing sequentially, operate. The operation of the second motors 10 drives the stirring plate 12 at the bottom of the second rotating shaft 11 to rotate, mixing the heavy metal ion solution with the coagulant aids or adsorbents. By first mixing the solution quickly and then slowly, it is easy for the heavy metal ion solution to be fully mixed with the coagulant aids or adsorbents, improving the floc formation efficiency. Then, the flocs settle by their own gravity through the inclined sedimentation plate 13.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heavy metal ion extraction device with a secondary mixing structure, characterized in that, The system includes a primary mixing tank (1), an inlet (2) on the outer wall of the primary mixing tank (1), a first motor (3) fixedly connected to the top of the primary mixing tank (1), a first rotating shaft (4) fixedly connected to the output end of the first motor (3), a mixing plate (5) fixedly connected to the outer wall of the first rotating shaft (4), a secondary mixing tank (6) on one side of the primary mixing tank (1), a water pump (7) at the connection between the primary mixing tank (1) and the secondary mixing tank (6), a partition (8) fixedly connected to the inner wall of the secondary mixing tank (6), an overflow groove (9) on the inner wall of the partition (8), a second motor (10) fixedly connected to the top of the secondary mixing tank (6), a second rotating shaft (11) fixedly connected to the output end of the second motor (10), a stirring plate (12) fixedly connected to the bottom end of the second rotating shaft (11), a sedimentation plate (13) fixedly connected to the inner wall of the secondary mixing tank (6), and a drain outlet (14) fixedly connected to the outer wall of the secondary mixing tank (6).

2. The heavy metal ion extraction device with a secondary mixing structure according to claim 1, characterized in that: The bottom of the primary mixing tank (1) is conical.

3. The heavy metal ion extraction device with a secondary mixing structure according to claim 1, characterized in that: The first rotating shaft (4) is in the shape of an inverted "T", and the mixing plate (5) is in the shape of an inclined plate. There are two sets of mixing plates (5), and the two sets of mixing plates (5) are centrally symmetrical about the central axis of the first rotating shaft (4).

4. The heavy metal ion extraction device with a secondary mixing structure according to claim 1, characterized in that: Two sets of partitions (8) are provided, and three sets of second motors (10) are provided. The three sets of second motors (10) and the two sets of partitions (8) are equidistantly distributed along the top of the secondary mixing tank (6).

5. The heavy metal ion extraction device with a secondary mixing structure according to claim 1, characterized in that: The speeds of the three sets of second motors (10) decrease sequentially.

6. The heavy metal ion extraction device with a secondary mixing structure according to claim 1, characterized in that: The overflow trough (9) has a Z-shaped cross-section.

7. The heavy metal ion extraction device with a secondary mixing structure according to claim 1, characterized in that: The sedimentation plate (13) is inclined in shape and is distributed parallel to each other at equal intervals along the inner wall of the secondary mixing tank (6).

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