Nickel recovery device

Abstract

The utility model relates to the technical field of wastewater treatment and recycling, in particular to a nickel recovery device which prevents precipitation through a stirring assembly, improves the nickel ion recovery efficiency, reduces equipment blockage and abrasion and realizes more stable and environment-friendly nickel resource recovery. Comprising a wastewater storage tank, a multi-medium filter, a plasma exchanger, an intermediate water tank, an acid regenerant storage tank, an alkali regenerant storage tank and a water storage tank, the wastewater storage tank is connected with the multi-medium filter through a pipeline, the multi-medium filter is connected with the plasma exchanger through a pipeline, and the plasma exchanger is connected with the intermediate water tank through a pipeline. The acid regenerant storage tank and the alkali regenerant storage tank are connected with the plasma exchanger through pipelines; the water storage tank is connected with the multi-medium filter and the plasma exchanger through pipelines respectively; wherein the wastewater storage tank comprises a tank body, a stirring assembly movably mounted in the tank body and a driving motor for driving the stirring assembly to move.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wastewater treatment and recycling, particularly to a nickel recovery device. BACKGROUND

[0002] Electroplating is a surface treatment technology that deposits a layer of metal onto the surface of another material through an electrolytic process. Nickel, as an important electroplating material, is widely used in various industries due to its excellent corrosion resistance, hardness, and appearance characteristics. During the electroplating of nickel, nickel exists in the form of ions in the electroplating solution. When an electric current passes through, nickel ions are reduced and deposited as a layer of metallic nickel on the cathode. However, not all of the nickel is completely deposited on the object to be plated, and some nickel ions remain in the electroplating solution and flow into wastewater with the rinsing water. The electroplating industry produces a large amount of electroplating nickel-containing wastewater every year, and direct discharge not only wastes resources but also causes serious environmental pollution.

[0003] The existing nickel recovery device usually first introduces the electroplating nickel-containing wastewater into a storage tank, then sends it to a filter for preliminary filtration, and then enters an ion exchanger for nickel ion exchange and adsorption, thereby realizing the recovery of nickel ions. The residence time of wastewater in the storage tank is relatively long, so heavier particulate matter will gradually settle to the bottom of the tank. The sediment may accumulate inside the pump inlet, valves, and other conveying equipment, causing these components to become clogged or functionally degraded, which in turn affects the normal operation of the entire system. SUMMARY

[0004] To solve the above technical problems, the utility model provides a nickel recovery device that improves nickel ion recovery efficiency and reduces equipment clogging and wear.

[0005] The nickel recovery device of the utility model, including wastewater storage tank, multi -media filter, plasma exchanger, intermediate water tank, acid regenerant storage tank, alkali regenerant storage tank and water storage tank, wastewater storage tank is connected with multi -media filter through pipeline, multi -media filter is connected with plasma exchanger through pipeline, plasma exchanger is connected with intermediate water tank through pipeline, acid regenerant storage tank and alkali regenerant storage tank are connected with plasma exchanger through pipeline, and water storage tank is connected with multi -media filter and plasma exchanger through pipeline respectively;

[0006] Among them, the wastewater storage tank includes a tank body, a stirring assembly movably installed in the tank body, and a drive motor driving the stirring assembly to move.

[0007] Further, the upper and lower ends of the tank body are respectively provided with a liquid inlet pipe and a discharge passage, and corresponding covers are hinged to the liquid inlet pipe and the discharge passage.

[0008] Further, the discharging channel is detachably provided with a filter screen cylinder with an upper opening, the top end of the filter screen cylinder is clamped to the discharging channel, a gap is left between the outer wall of the filter screen cylinder and the inner wall of the discharging channel, and the side wall of the discharging channel is connected with a liquid outlet pipe in communication with the inside of the discharging channel.

[0009] Further, the tank body comprises a columnar body, the bottom end of the columnar body is configured with a conical connecting section, and the discharging channel is arranged at the bottom end of the connecting section.

[0010] Further, the stirring assembly comprises a plurality of vertically distributed stirring shafts, each stirring shaft is provided with a plurality of groups of stirring fans arranged at intervals along the axial direction of the stirring shaft on the circumferential outer side of the stirring shaft, and each group of stirring fans comprises a plurality of fan blades uniformly distributed along the circumferential direction of the corresponding stirring shaft.

[0011] The plurality of stirring shafts are drivingly connected through a transmission mechanism, and the transmission mechanism is connected with the power output end of the driving motor.

[0012] Further, one of the stirring shafts vertically downwardly faces the discharging channel, the lower end of the stirring shaft extends into the discharging channel and is connected with a spiral stirring blade.

[0013] Further, the transmission mechanism comprises an inner ring gear, a planet carrier, a plurality of planet wheels and a sun wheel, the inner ring gear is fixedly connected with the inner wall of the tank body, the planet wheels are arranged in a plurality of groups and fixedly installed on the same side end of each stirring shaft connected with the spiral stirring blade, the sun wheel is rotatably connected with the planet carrier and fixedly connected with the stirring shaft connected with the spiral stirring blade, and the driving motor is used for driving the planet carrier, and the planet carrier drives the sun wheel through the planet wheels.

[0014] Further, a support supporting the tank body is arranged at the bottom of the tank body.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] By installing the stirring assembly in the wastewater storage tank and controlling the movement of the stirring assembly by the driving motor, the nickel-containing wastewater in the tank can be continuously or intermittently stirred, so that the heavier particulate matter is prevented from settling at the bottom of the tank, thereby avoiding the accumulation of the precipitate in the pump inlet, the valve and other conveying equipment, reducing the risk of blockage or functional decline of these components; due to the stirring effect, the nickel ions in the wastewater can be uniformly distributed, ensuring that the subsequent filtration and ion exchange processes are more efficient, improving the recovery rate of nickel ions and the processing efficiency of the entire system; reducing the equipment wear and blockage problems caused by the precipitate, indirectly prolonging the service life of the related equipment and reducing the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below with reference to the drawings.

[0018] Fig. 1 is a structural schematic view of the present application;

[0019] Fig. 2 is the structure schematic diagram of the wastewater storage tank of the utility model;

[0020] Fig. 3 is the internal structure schematic diagram of the wastewater storage tank of the utility model;

[0021] Fig. 4 is the structure schematic diagram of the stirring assembly and transmission mechanism connection of the utility model;

[0022] Marked in the drawing: 1, wastewater storage tank; 11, tank body; 111, liquid inlet pipe; 112, discharge passage; 113, cover; 114, filter screen cylinder; 115, liquid outlet pipe; 12, stirring assembly; 121, stirring shaft; 122, stirring fan; 123, fan blade; 124, spiral stirring blade; 13, driving motor; 14, transmission mechanism; 141, inner gear ring; 142, planetary support; 143, planetary wheel; 144, sun gear; 15, support; 2, multi-medium filter; 3, plasma exchanger; 4, intermediate water tank; 5, acid regenerant storage tank; 6, alkali regenerant storage tank; 7, water storage tank. DETAILED DESCRIPTION

[0023] The specific embodiments of the utility model are described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but are not used to limit the scope of the utility model.

[0024] As Figs. 1 to 4 shown, the nickel recovery device of the utility model, including wastewater storage tank 1, multi-medium filter 2, plasma exchanger 3, intermediate water tank 4, acid regenerant storage tank 5, alkali regenerant storage tank 6 and water storage tank 7, wastewater storage tank 1 is connected with multi-medium filter 2 through pipeline, multi-medium filter 2 is connected with plasma exchanger 3 through pipeline, plasma exchanger 3 is connected with intermediate water tank 4 through pipeline, acid regenerant storage tank 5 and alkali regenerant storage tank 6 are connected with plasma exchanger 3 through pipeline, water storage tank 7 is connected with multi-medium filter 2 and plasma exchanger 3 through pipeline respectively;

[0025] Among them, wastewater storage tank 1 includes tank body 11, stirring assembly 12 movably installed in tank body 11 and driving motor 13 driving stirring assembly 12 to move;

[0026] The wastewater storage tank 1 is used for storing the nickel-containing wastewater to be treated, and is the starting point of the entire recovery system. In order to ensure uniform distribution of solid particles in the wastewater and prevent sedimentation, the stirring assembly 12 in the tank is driven by the driving motor 13 for stirring. Mechanical stirring can increase the relative movement between particles and liquid in the solution, and promote uniform distribution. The wastewater from the wastewater storage tank 1 first passes through the multi-medium filter 2, which is filled with different types of filter materials in layers, and uses physical interception and adsorption to remove particles and colloids, as well as organic matter and suspended matter, etc. in the wastewater, and performs preliminary filtration on the wastewater to prepare for subsequent processing steps. The ion exchanger 3 is a key equipment for nickel recovery, which uses a specific ion exchange resin. The wastewater after preliminary filtration enters the ion exchanger 3, and the nickel ions in the wastewater are exchanged and adsorbed, so that the nickel is fixed, realizing the separation and recovery of nickel. The intermediate tank 4 is used for storing the treated water, waiting for further processing or discharging from the system. The acid regenerant storage tank 5 and the alkali regenerant storage tank 6 are respectively used for storing acidic and alkaline regenerants, so that the ion exchange material can be regenerated after saturation, prolonging its service life and reducing operating costs. The water storage tank 7 is used for storing pure water, which is used to flush the multi-medium filter 2 and the ion exchanger 3, to ensure the cleanliness inside the two key components and maintain their efficient operation. The wastewater produced after flushing is introduced back to the wastewater storage tank 1, so as to enter the entire treatment cycle again or be treated separately.

[0027] The upper and lower ends of the tank body 11 are respectively provided with a liquid inlet pipe 111 and a discharge passage 112, and corresponding covers 113 are hinged at the liquid inlet pipe 111 and the discharge passage 112. The input and output channels can be conveniently opened or closed by the covers 113, and the covers 113 can be opened to add wastewater or clean and maintain. The design of the covers 113 helps to ensure that the tank body 11 remains closed when not in use, preventing accidental leakage of the internal liquid and preventing external impurities from entering the tank and being contaminated. The hinged design can provide better safety, especially when transporting or moving the tank body 11, to ensure that the liquid does not spill due to shaking.

[0028] Preferably, the upper opening filter screen cylinder 114 is detachably installed in the discharge channel 112, the top end of the upper opening filter screen cylinder 114 is clamped with the discharge channel 112, a gap is left between the outer wall of the upper opening filter screen cylinder 114 and the inner wall of the discharge channel 112, and the side wall of the discharge channel 112 is connected with a liquid outlet pipe 115 in communication with the inside of the discharge channel 112; when the wastewater passes through the discharge channel 112, larger particles will be directly intercepted by the upper opening filter screen cylinder 114, and by adding this level of filtration in the wastewater storage tank 1, larger suspended solids can be effectively removed, providing cleaner water for the subsequent multi-medium filter 2, and further improving the processing effect of the entire nickel recovery device; the detachable design makes it simple and fast to clean and replace the upper opening filter screen cylinder 114, and by opening the cover 113 and removing the upper opening filter screen cylinder 114 for cleaning or replacement, the continuous and efficient working state thereof can be ensured; the clamping design ensures the stability of the upper opening filter screen cylinder 114 during work, avoiding position deviation caused by water flow impact; the gap between the outer wall of the upper opening filter screen cylinder 114 and the inner wall of the discharge channel 112 allows the filtered liquid to flow smoothly, reduces flow resistance, and improves fluid transmission efficiency.

[0029] Preferably, the tank body 11 includes a cylindrical body, the bottom end of which is configured with a tapered connecting section, and the discharge channel 112 is arranged at the bottom end of the connecting section; the tapered design of the bottom end helps to guide the liquid in the tank body 11 to gather towards the center, facilitating discharge through the discharge channel 112.

[0030] Preferably, the stirring assembly 12 includes a plurality of vertically distributed stirring shafts 121, each of which is installed with a plurality of groups of stirring fans 122 arranged along the axial direction of the corresponding stirring shaft 121 on the circumferential outer side thereof, and each group of stirring fans 122 includes a plurality of fan blades 123 uniformly distributed in the circumferential direction of the corresponding stirring shaft 121; the plurality of stirring shafts 121 are drivingly connected through a transmission mechanism 14, and the transmission mechanism 14 is connected with the power output end of the driving motor 13; the circumferentially uniform distribution of the fan blades 123 ensures the uniformity of the stirring force in the horizontal direction, avoiding local over-stirring or under-stirring, which helps to improve the mixing quality in the entire tank body 11; the multiple layers of stirring fans 122 simultaneously stir at different heights of the tank body 11, effectively preventing stratification; the plurality of stirring shafts 121 are connected through the transmission mechanism 14, so that all the stirring shafts 121 work synchronously, the stirring fans 122 installed thereon drive the surrounding liquid to form a complex flow pattern, thereby achieving effective mixing of the liquid in the tank, and the shear force generated during the stirring process can help maintain the suspended state of the solid particles and prevent sedimentation.

[0031] Preferably, one of the stirring shafts 121 is vertically downwardly directed towards the discharge passage 112, with its lower end extending into the discharge passage 112 and being connected with a helical stirring blade 124; when the driving motor 13 drives the stirring shaft 121 to rotate, the helical stirring blade 124 rotates synchronously, and the helical stirring blade 124 can effectively resuspend the solid substances deposited in the conical bottom, preventing the formation of blockage of these substances during discharge and keeping the discharge passage 112 unobstructed.

[0032] To realize multi-axis linkage in limited space and further enhance the mixing effect of the liquid in the tank 11, the transmission mechanism 14 includes an inner ring gear 141, a planetary support 142, a plurality of planetary gears 143 and a sun gear 144; the inner ring gear 141 is fixedly connected with the inner wall of the tank 11, the planetary gears 143 are arranged in plurality and fixedly installed on the same side of each stirring shaft 121 except the one connected with the helical stirring blade 124, the sun gear 144 is rotationally connected with the planetary support 142 and fixedly connected with the stirring shaft 121 connected with the helical stirring blade 124, the driving motor 13 is used to drive the planetary support 142, and the planetary support 142 drives the sun gear 144 through the planetary gears 143; when the driving motor 13 is started, it first drives the planetary support 142 to rotate, and the planetary gears 143 on the planetary support 142 simultaneously revolve with the planetary support 142 and also rotate due to the meshing with the inner ring gear 141, and the rotation of the planetary gears 143 is transmitted to the stirring shafts 121 through the connection therebetween, so that the stirring shafts 121 rotate synchronously to realize uniform stirring, and the stirring shaft 121 connected with the sun gear 144 rotates in the opposite direction to the other stirring shafts 121, driving the water flow to generate a complex flow field pattern in the tank 11, further increasing the degree of turbulence inside the liquid and thus improving the mixing efficiency.

[0033] Preferably, the tank 11 is installed with a support 15 supporting it; the support 15 provides stable mechanical support for the tank 11, ensuring that it will not be displaced or tilted when bearing the weight of the wastewater and the internal stirring force; at the same time, the support 15 lifts the tank 11 to a certain distance from the ground, facilitating later maintenance, so that the operating personnel can conveniently access the bottom of the tank 11 for inspection, cleaning or repair work, such as cleaning the discharge passage 112 or replacing the filter screen cylinder 114.

[0034] The nickel recovery device of the utility model, when working, first open the hinged cover 113 at the liquid inlet pipe 111, introduce the waste water into the waste water storage tank 1, start the driving motor 13, drive the stirring assembly 12 to rotate through the transmission mechanism 14, after the driving motor 13 starts, first drive the planetary support 142 to rotate, the planetary wheel 143 on the planetary support 142 revolves with the planetary support 142, also rotates due to meshing with the inner gear ring 141, and the stirring shaft 121 and the stirring fan 122 connected with it rotate, at the same time, the sun gear 144 meshes with the planetary wheel 143, thereby power is transmitted to the stirring shaft 121, the stirring fan 122 and the spiral stirring blade 124 connected with it, so that the waste water is fully mixed and the sediment is prevented from accumulating, the waste water with large particle impurities filtered through the filter screen cylinder 114 flows into the multi-medium filter 2 from the waste water storage tank 1 through the liquid outlet pipe 115, removes the suspended matter, colloidal substance and part of the dissolubility impurities through different types of filter materials, the waste water after preliminary treatment enters the ion exchanger 3, when the ion exchange resin contacts with the waste water, can exchange with the nickel ion in the water, thereby fixing the nickel, realizes the effective recovery of nickel, when the exchange resin reaches saturation, respectively introduce the acid liquid or the lye from the acid regenerant storage tank 5 and the alkali regenerant storage tank 6 to regenerate the exchange material, restore its adsorption function, and collect the nickel solution released in the regeneration process, the water after ion exchange treatment is temporarily stored in the intermediate water tank 4, waits for further treatment or discharge, the water storage tank 7 flushes the multi-medium filter 2 and the ion exchanger 3 through the stored pure water, the waste water generated after flushing is introduced back to the waste water storage tank 1, so as to enter the whole treatment cycle again.

[0035] The nickel recovery device of the utility model, its installation mode, connection mode or setting mode are all common mechanical modes, as long as the beneficial effects can be achieved, can be implemented.

[0036] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the technical principle of the utility model, can make a number of improvements and variations, these improvements and variations should also be regarded as the protection scope of the utility model.

Claims

1. A nickel recovery device, characterized by, The application relates to a wastewater treatment device, which comprises a wastewater storage tank (1), a multi-medium filter (2), a plasma exchanger (3), an intermediate water tank (4), an acid regenerant storage tank (5), an alkali regenerant storage tank (6) and a water storage tank (7), the wastewater storage tank (1) is connected with the multi-medium filter (2) through a pipeline, the multi-medium filter (2) is connected with the plasma exchanger (3) through a pipeline, the plasma exchanger (3) is connected with the intermediate water tank (4) through a pipeline, the acid regenerant storage tank (5) and the alkali regenerant storage tank (6) are both connected with the plasma exchanger (3) through pipelines, and the water storage tank (7) is connected with the multi-medium filter (2) and the plasma exchanger (3) through pipelines respectively. The wastewater storage tank (1) comprises a tank body (11), a stirring assembly (12) movably arranged in the tank body (11) and a driving motor (13) for driving the stirring assembly (12) to move.

2. The nickel recovery apparatus of claim 1, wherein The upper and lower ends of the tank body (11) are respectively provided with a liquid inlet pipe (111) and a discharge channel (112), and corresponding covers (113) are hinged to the liquid inlet pipe (111) and the discharge channel (112).

3. The nickel recovery apparatus of claim 2, wherein A filter screen cylinder (114) with an upper opening is detachably arranged in the discharge channel (112), the top end of the filter screen cylinder (114) is clamped to the discharge channel (112), a gap is formed between the outer wall of the filter screen cylinder (114) and the inner wall of the discharge channel (112), and a liquid outlet pipe (115) is connected to the side wall of the discharge channel (112) and communicates with the interior of the discharge channel (112).

4. The nickel recovery apparatus of claim 2, wherein The tank body (11) comprises a columnar body, a conical connecting section is arranged at the bottom end of the columnar body, and the discharge channel (112) is arranged at the bottom end of the connecting section.

5. The nickel recovery apparatus of claim 2, wherein The stirring assembly (12) comprises a plurality of vertically distributed stirring shafts (121), a plurality of groups of stirring fans (122) are arranged on the circumferential outer side of each stirring shaft (121) and are spaced along the axial direction of the stirring shaft (121), and each group of stirring fans (122) comprises a plurality of fan blades (123) which are uniformly distributed in the circumferential direction of the corresponding stirring shaft (121). The plurality of stirring shafts (121) are drivingly connected through a transmission mechanism (14), and the transmission mechanism (14) is connected with the power output end of the driving motor (13).

6. The nickel recovery apparatus of claim 5, wherein, One of the stirring shafts (121) vertically downwardly faces the discharge channel (112), and the lower end of the stirring shaft (121) extends into the discharge channel (112) and is connected with a helical stirring blade (124).

7. The nickel recovery apparatus of claim 5, wherein The transmission mechanism (14) comprises an inner ring gear (141), a planetary support (142), a plurality of planetary gears (143) and a sun gear (144); the inner ring gear (141) is fixedly connected with the inner wall of the tank body (11), the planetary gears (143) are arranged in plurality and fixedly installed on the same side of each of the stirring shafts (121) except the stirring shaft (121) connected with the spiral stirring blade (124), the sun gear (144) is rotatably connected with the planetary support (142) and fixedly connected with the stirring shaft (121) connected with the spiral stirring blade (124), and the driving motor (13) is used for driving the planetary support (142), the planetary support (142) drives the sun gear (144) through the planetary gears (143).

8. The nickel recovery apparatus of claim 1, wherein, A support (15) supporting the tank body (11) is installed at the bottom of the tank body (11).

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