Wastewater treatment equipment

Abstract

This utility model relates to the field of wastewater treatment technology, specifically to a wastewater treatment device. The wastewater treatment device includes a cyclone reaction unit, a filtration unit, and a sludge collection unit. The cyclone reaction unit includes a reaction chamber, and an inlet and a dosing port communicating with the reaction chamber. The inlet is arranged tangentially to the reaction chamber. The filtration unit is connected to the cyclone reaction unit, and the sludge collection unit is connected to the filtration unit. The wastewater treatment device has a simple structure, is easy to use, occupies a small area, and has low operation and maintenance costs, enabling efficient and low-consumption treatment of wastewater.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to a wastewater treatment device. Background Technology

[0002] Mining acidic wastewater (AMD) often contains a large amount of suspended slag particles (SS>2000mg / L) and dissolved heavy metals (such as Fe³⁺, Cu²⁺). Traditional treatment processes require separate neutralization tanks, sedimentation tanks, and filtration tanks, which have problems such as large footprint, easy clogging, and low reaction efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a wastewater treatment device that has a simple structure, is easy to use, occupies a small area, has low operation and maintenance costs, and can achieve efficient and low-consumption treatment of wastewater.

[0004] The embodiments of this utility model can be implemented as follows:

[0005] This utility model provides a wastewater treatment device, which includes a cyclone reaction unit, a filtration unit, and a sludge collection unit.

[0006] The swirling reaction unit includes a reaction chamber, and an inlet and a dosing port that communicate with the reaction chamber. The inlet is arranged along the tangential direction of the reaction chamber.

[0007] The filtration unit is connected to the cyclone reaction unit, and the sludge collection unit is connected to the filtration unit.

[0008] In an optional implementation, the filtration unit is detachably connected to the cyclone reaction unit, and the sludge collection unit is detachably connected to the filtration unit.

[0009] In an optional embodiment, a flow divider is provided in the reaction chamber, and the flow divider is located at the connection between the dosing port and the reaction chamber.

[0010] In an optional embodiment, a spiral guide plate is connected inside the reaction cavity, and the spiral guide plate is arranged around the axis of the reaction cavity.

[0011] In an optional implementation, the end of the sludge collection unit facing away from the filter unit is provided with a drain outlet.

[0012] In an optional embodiment, a backwash inlet is provided on the outer periphery of the sludge collection unit, and the backwash inlet is arranged along the tangential direction of the sludge collection unit.

[0013] In an optional embodiment, the filtration unit includes a first filter cylinder, a second filter cylinder, and a third filter cylinder arranged sequentially from the swirl reaction unit to the sludge collection unit;

[0014] The first filter cartridge is filled with limestone particles and steel slag; the second filter cartridge is filled with sulfur-modified zeolite; and the third filter cartridge contains activated carbon fiber felt and a nano-zero-valent iron coated filter screen.

[0015] In an optional embodiment, the wastewater treatment device further includes a plurality of first connecting flanges, second connecting flanges, and third connecting flanges;

[0016] The first filter cartridge is detachably connected to the cyclone reaction unit via the first connecting flange, the second filter cartridge is detachably connected to the first filter cartridge via the second connecting flange, and the third filter cartridge is detachably connected to the second filter cartridge via the third connecting flange.

[0017] In an optional embodiment, the filter unit includes a connecting cylinder, a first movable sleeve, a second movable sleeve, and a third movable sleeve;

[0018] The connecting cylinder is connected to the cyclone reaction unit and the sludge collection unit. The connecting cylinder is equipped with a first installation port, a second installation port and a third installation port. The first installation port, the second installation port and the third installation port are respectively used for loading the first filter cartridge, the second filter cartridge and the third filter cartridge.

[0019] The first movable sleeve, the second movable sleeve, and the third movable sleeve are all rotatably connected to the connecting cylinder, and the first movable sleeve, the second movable sleeve, and the third movable sleeve are respectively used to close the first mounting port, the second mounting port, and the third mounting port.

[0020] In an optional embodiment, a first support platform, a second support platform, and a third support platform are respectively provided inside the connecting cylinder, and the first support platform, the second support platform, and the third support platform are respectively used to place the first filter cartridge, the second filter cartridge, and the third filter cartridge.

[0021] The beneficial effects of the wastewater treatment device provided in this embodiment of the present invention include:

[0022] This wastewater treatment device includes a cyclone reaction unit, a filtration unit, and a sludge collection unit. The cyclone reaction unit includes a reaction chamber, an inlet, and a chemical dosing port connected to the reaction chamber. The inlet is positioned tangentially to the reaction chamber. The filtration unit is connected to the cyclone reaction unit, and the sludge collection unit is connected to the filtration unit. The wastewater treatment device has a simple structure, is easy to use, occupies a small area, and has low operation and maintenance costs, enabling efficient and low-consumption treatment of wastewater. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the wastewater treatment device provided in this embodiment;

[0025] Figure 2 This is a cross-sectional view of the wastewater treatment device provided in this embodiment;

[0026] Figure 3 This is an exploded view of the wastewater treatment device provided in this embodiment;

[0027] Figure 4 This is a schematic diagram of the structure of the wastewater treatment device provided in this embodiment when it is equipped with a connecting cylinder;

[0028] Figure 5 This is a schematic diagram of the installation of the connecting cylinder, the first movable sleeve, and the first filter cylinder provided in this embodiment;

[0029] Figure 6 This is an exploded view of the connecting cylinder, the first movable sleeve, and the first filter cylinder provided in this embodiment.

[0030] Icons: 100-Wastewater treatment device; 110-Swirl reaction unit; 120-Filtration unit; 130-Sludge collection unit; 111-Reaction chamber; 112-Inlet; 113-Dosing port; 114-Diverter hood; 115-Spiral guide plate; 131-Drain outlet; 121-First filter cartridge; 122-Second filter cartridge; 123-Third filter cartridge; 141-First connecting flange; 142-Second connecting flange; 143-Third connecting flange; 151-Connecting cylinder; 152-First movable sleeve; 153-Second movable sleeve; 154-Third movable sleeve; 155-First mounting port; 156-Second mounting port; 157-Third mounting port; 158-First support platform. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0036] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0037] Please refer to Figures 1-3 This embodiment provides a wastewater treatment device 100, which includes a cyclone reaction unit 110, a filtration unit 120, and a sludge collection unit 130.

[0038] The swirling reaction unit 110 includes a reaction chamber 111, and an inlet 112 and a dosing port 113 communicating with the reaction chamber 111. The inlet 112 is arranged along the tangential direction of the reaction chamber 111.

[0039] The filtration unit 120 is connected to the cyclone reaction unit 110, and the sludge collection unit 130 is connected to the filtration unit 120.

[0040] Please refer to Figures 1-3 The working principle of the wastewater treatment device 100 is as follows:

[0041] The wastewater treatment device 100 includes a cyclone reaction unit 110, a filtration unit 120, and a sludge collection unit 130. The cyclone reaction unit 110 includes a reaction chamber 111, an inlet 112, and a dosing port 113 communicating with the reaction chamber 111. The inlet 112 is arranged tangentially to the reaction chamber 111. The filtration unit 120 is connected to the cyclone reaction unit 110, and the sludge collection unit 130 is connected to the filtration unit 120. The wastewater treatment device 100 uses a configuration of the cyclone reaction unit 110, the filtration unit 120, and the sludge collection unit 130. During operation, wastewater is introduced into the reaction chamber 111 through the inlet 112, and reactants are introduced into the reaction chamber 111 through the dosing port 113, allowing the wastewater and reactants to mix thoroughly and react within the reaction chamber 111. After filtration by the filtration unit 120, the wastewater is then discharged through the sludge collection unit 130.

[0042] Through the above structural arrangement, the wastewater can form a swirling flow in the reaction chamber 111 and be fully mixed with the reactants, thereby improving the mixing uniformity and reaction efficiency. At the same time, based on the aforementioned swirling reaction unit 110, the filtration unit 120 is connected to the swirling reaction unit 110, and the sludge collection unit 130 is connected to the filtration unit 120. This allows for rapid subsequent filtration and discharge of the wastewater and reactants after they have mixed and reacted in the reaction chamber 111, thereby improving the wastewater treatment efficiency.

[0043] Moreover, this structural arrangement allows the cyclone reaction unit 110, the filtration unit 120, and the sludge collection unit 130 to be integrated and monolithic, thereby simplifying and optimizing their structure, reducing their footprint, and lowering their operation and maintenance costs, thus enabling efficient and low-consumption treatment of wastewater.

[0044] Further, please refer to Figures 1-3 In this embodiment, in order to facilitate the assembly and maintenance of the wastewater treatment device 100, the filtration unit 120 is detachably connected to the cyclone reaction unit 110, and the sludge collection unit 130 is detachably connected to the filtration unit 120.

[0045] Furthermore, to improve the mixing uniformity between the reactants and the wastewater during the introduction of reactants, a flow divider 114 is provided in the reaction chamber 111, located at the connection between the dosing port 113 and the reaction chamber 111. Additionally, to ensure that the wastewater and reactants can form a swirling flow within the reaction chamber for uniform mixing, in addition to aligning the inlet 112 tangentially to the reaction chamber 111, a spiral guide plate 115 is connected within the reaction chamber 111. The spiral guide plate 115 is arranged around the axis of the reaction chamber 111, thus ensuring that the wastewater forms a swirling flow after introduction, thereby achieving thorough mixing with the reactants.

[0046] When configuring the sludge collection unit 130, a drain outlet 131 is provided at the end of the sludge collection unit 130 away from the filter unit 120 to facilitate the discharge of treated water. Moreover, to facilitate internal rinsing and maintenance, a backwash inlet 112 is provided on the outer periphery of the sludge collection unit 130. The backwash inlet 112 is arranged along the tangential direction of the sludge collection unit 130, thereby forming a vortex to backwash it, thus improving its rinsing efficiency.

[0047] When configuring the filter unit 120, to improve its filtration capacity, the number of filter cartridges, the filter packing material, and the filtration structure within the filter cartridges can be adjusted according to requirements. This embodiment uses a configuration of three filter cartridges as an example for explanation. Please refer to [link / reference]. Figures 1-3 Specifically, the filtration unit 120 includes a first filter cartridge 121, a second filter cartridge 122, and a third filter cartridge 123 arranged sequentially from the cyclone reaction unit 110 to the sludge collection unit 130. The first filter cartridge 121 is filled with limestone particles and steel slag; the second filter cartridge 122 is filled with sulfur-modified zeolite; and the third filter cartridge 123 contains activated carbon fiber felt and a nano-zero-valent iron coated filter screen. This forms a multi-stage filtration system, which, in conjunction with the aforementioned cyclone reaction unit 110, achieves rapid neutralization of acidic wastewater and deep removal of heavy metals through cyclone mixing and multi-stage filtration.

[0048] To facilitate future maintenance of the units, please refer to... Figures 1-3 The wastewater treatment device 100 also includes multiple first connecting flanges 141, second connecting flanges 142 and third connecting flanges 143; the first filter cartridge 121 is detachably connected to the cyclone reaction unit 110 through the first connecting flange 141, the second filter cartridge 122 is detachably connected to the first filter cartridge 121 through the second connecting flange 142, and the third filter cartridge 123 is detachably connected to the second filter cartridge 122 through the third connecting flange 143.

[0049] With the above-described structural design, the first filter cartridge 121, the second filter cartridge 122, and the third filter cartridge 123 can all be detachably connected, making it easy to remove one or more of them for maintenance.

[0050] Unlike the above method of configuring the connection flange, please refer to... Figures 4-6 In other embodiments of the present invention, the filter unit 120 may further include a connecting cylinder 151, a first movable sleeve 152, a second movable sleeve 153, and a third movable sleeve 154.

[0051] The connecting cylinder 151 is connected to the cyclone reaction unit 110 and the sludge collection unit 130. The connecting cylinder 151 is equipped with a first mounting port 155, a second mounting port 156 and a third mounting port 157. The first mounting port 155, the second mounting port 156 and the third mounting port 157 are respectively used for loading the first filter cartridge 121, the second filter cartridge 122 and the third filter cartridge 123.

[0052] The first movable sleeve 152, the second movable sleeve 153, and the third movable sleeve 154 are all rotatably connected to the connecting cylinder 151, and the first movable sleeve 152, the second movable sleeve 153, and the third movable sleeve 154 are respectively used to close the first mounting port 155, the second mounting port 156, and the third mounting port 157.

[0053] With this configuration, all three filter cartridges can be detachably connected to the connecting cylinder 151, and then the corresponding movable sleeves can be installed to fix and seal the filter cartridges. Moreover, this configuration allows maintenance of one or more filter cartridges without removing the sludge collection unit 130, thus simplifying the maintenance of the filter cartridges.

[0054] It should be noted that corresponding sealing structures are provided on the inner side of the connecting cylinder 151 and each movable sleeve to ensure their sealing performance. The sealing structures can be gaskets and sealing rings, etc., which will not be described in detail here.

[0055] In order to position each filter cartridge when installing it in the connecting cylinder 151 so as to maintain its relative position in the connecting cylinder 151, a first support platform 158, a second support platform and a third support platform are respectively provided in the connecting cylinder 151. The first support platform 158, the second support platform and the third support platform are used to place the first filter cartridge 121, the second filter cartridge 122 and the third filter cartridge 123 respectively.

[0056] Based on the above, please refer to Figures 1-6 Taking the wastewater treatment device 100 as an example, which includes three filter cartridges arranged in the above-mentioned filtration structure, its specific structure is as follows:

[0057] Swirl reaction unit 110: a vertical cylindrical reaction vessel (diameter 1.2m, height 0.8m), with a tangentially arranged inlet 112 at the top (flow velocity 2-3m / s), and a spiral guide plate 115 (pitch 400cm, inclination angle 45°) welded to the inner wall of the vessel; a chemical dosing port 113 and an online pH probe are installed at the top;

[0058] Filter unit 120: Taking a three-stage filtration system as an example, all three stages are replaceable filter cartridges (40cm in diameter, 60cm in height), arranged in the direction of water flow as follows:

[0059] Primary filter cartridge: filled with a mixture of limestone particles (5-10mm in diameter) and steel slag (3-5mm in diameter) (mass ratio 7:3) to neutralize acidity and preliminarily adsorb heavy metals;

[0060] Secondary filter cartridge: filled with sulfur-modified zeolite (particle size 2-4mm), which adsorbs Cu²⁺ and Zn²⁺ through ion exchange;

[0061] Three-stage filter cartridge: activated carbon fiber felt (5cm thick) + nano zero-valent iron coated filter screen (100μm pore size) to deeply remove toxic substances such as As³⁺.

[0062] The multi-stage filter cartridge can be quickly disassembled using the connecting flange mentioned above, or it can be installed using the connecting cylinder 151 mentioned above.

[0063] Sludge collection unit 130: Conical sludge collection hopper (cone angle 60°) connected to sludge discharge valve;

[0064] In addition, a backwashing port can be provided at the bottom of the filter unit 120 or the sludge collection unit 130.

[0065] Based on the above structural design, it can achieve rapid neutralization of acidic wastewater and deep removal of heavy metals when treating acidic wastewater (AMD). The specific treatment process is as follows:

[0066] The wastewater treatment device 100 is placed downstream of the mine drainage outlet 131, and the inlet 112 is connected to a booster pump (flow rate 10 m³ / h).

[0067] Acidic wastewater enters the reaction chamber 111 of the vortex reaction unit 110 tangentially, and forms a vortex along the spiral guide plate 115 under the action of the spiral guide plate 115, and is fully mixed with the lime slurry automatically added through the dosing port 113 (neutralization reaction time 5-8 min).

[0068] The neutralized water flows from top to bottom through three filter cartridges, namely the first filter cartridge 121, the second filter cartridge 122 and the third filter cartridge 123, which sequentially complete the adsorption of heavy metals and the interception of suspended solids.

[0069] The effluent treated by the sludge collection unit 130 (SS<50mg / L, Cu²+<0.5mg / L) meets the discharge standards;

[0070] The backwash wastewater is returned to the cyclone reaction unit 110 for further treatment.

[0071] Based on the above, the wastewater treatment device 100 has at least the following advantages:

[0072] Cyclone-enhanced reaction: The spiral guide plate 115 extends the hydraulic residence time and improves the neutralization efficiency (40% higher than traditional stirred tanks), while centrifugal action promotes the settling of large particles (SS removal rate >80%); Modular filter cartridge design: The three-stage filter cartridge targets the adsorption of different pollutants, and zeolite modification enhances selectivity (Cu²+ adsorption capacity up to 35mg / g); The quick-release structure supports on-site replacement, and the maintenance time for a single cartridge is <30 minutes.

[0073] It boasts high treatment efficiency; data shows that when the water pH is 2.5 and Fe³+ is 500 mg / L, the effluent pH is 6.2 and Fe³+ is <1 mg / L. It also features a small footprint, with its integrated design reducing the footprint by 70% compared to traditional processes (a single unit with a treatment capacity of 10 m³ / h occupies only 4 m²). Furthermore, it offers low operation and maintenance costs: the steel slag and zeolite packing materials can be regenerated in situ (replaced annually), resulting in a treatment cost of <1.5 yuan per ton of water. This efficient and low-consumption treatment allows for rapid deployment in mining areas, demonstrating significant environmental and economic value.

[0074] It is suitable for emergency treatment of acidic wastewater from underground water inflows or open-air storage yards in iron ore and copper mines, and is especially suitable for working conditions with narrow spaces and high suspended solids content.

[0075] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A wastewater treatment device, characterized in that: The wastewater treatment device includes a cyclone reaction unit, a filtration unit, and a sludge collection unit. The swirling reaction unit includes a reaction chamber, and an inlet and a dosing port communicating with the reaction chamber. The inlet is arranged along the tangential direction of the reaction chamber. The filtration unit is connected to the cyclone reaction unit, and the sludge collection unit is connected to the filtration unit.

2. The wastewater treatment device according to claim 1, characterized in that: The filtration unit is detachably connected to the cyclone reaction unit, and the sludge collection unit is detachably connected to the filtration unit.

3. The wastewater treatment device according to claim 1, characterized in that: The reaction chamber is equipped with a flow divider, which is located at the connection between the drug inlet and the reaction chamber.

4. The wastewater treatment device according to claim 1, characterized in that: A spiral guide plate is connected inside the reaction cavity, and the spiral guide plate is arranged around the axis of the reaction cavity.

5. The wastewater treatment device according to claim 1, characterized in that: The mud collection unit has a drain outlet at the end opposite to the filter unit.

6. The wastewater treatment device according to claim 5, characterized in that: The sludge collection unit is provided with a backwash inlet on its outer periphery, and the backwash inlet is arranged along the tangential direction of the sludge collection unit.

7. The wastewater treatment apparatus according to any one of claims 1-6, characterized in that: The filtration unit includes a first filter cylinder, a second filter cylinder, and a third filter cylinder arranged sequentially from the sludge collection unit to the cyclone reaction unit. The first filter cartridge is filled with limestone particles and steel slag; the second filter cartridge is filled with sulfur-modified zeolite. The third filter cartridge contains an activated carbon fiber felt and a nano-zero ferrous iron coated filter screen.

8. The wastewater treatment device according to claim 7, characterized in that: The wastewater treatment device also includes multiple first connecting flanges, second connecting flanges and third connecting flanges; The first filter cartridge is detachably connected to the cyclone reaction unit via the first connecting flange, the second filter cartridge is detachably connected to the first filter cartridge via the second connecting flange, and the third filter cartridge is detachably connected to the second filter cartridge via the third connecting flange.

9. The wastewater treatment device according to claim 7, characterized in that: The filter unit includes a connecting cylinder, a first movable sleeve, a second movable sleeve, and a third movable sleeve; The connecting cylinder is connected to the cyclone reaction unit and the sludge collection unit. The connecting cylinder is equipped with a first mounting port, a second mounting port and a third mounting port. The first mounting port, the second mounting port and the third mounting port are respectively used for loading the first filter cartridge, the second filter cartridge and the third filter cartridge. The first movable sleeve, the second movable sleeve, and the third movable sleeve are all rotatably connected to the connecting cylinder, and the first movable sleeve, the second movable sleeve, and the third movable sleeve are respectively used to close the first mounting port, the second mounting port, and the third mounting port.

10. The wastewater treatment device according to claim 9, characterized in that: a first bearing table, a second bearing table and a third bearing table are respectively arranged in the connecting cylinder, and the first bearing table, the second bearing table and the third bearing table are respectively used for placing the first filter cylinder, the second filter cylinder and the third filter cylinder.

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