Ammonia distillation wastewater treatment equipment

Abstract

The utility model relates to water treatment technical field especially relates to a kind of ammonia distillation wastewater treatment equipment. Including pool jar, the pool jar is equipped with the liquid injection pipe of valve, liquid discharge pipe, dosing pipe, pool jar upper port is equipped with truss, truss is equipped with the propelling type stirring paddle, stirring paddle is driven by speed reducer, concentric cylinder is installed by beam in pool jar, stirring paddle is located in concentric cylinder. Propelling type stirring paddle will make concentric cylinder inside waste liquid surge upwards, and wastewater outside concentric cylinder is under the action of pressure difference from the bottom end of concentric cylinder to make up bucket, to form the circulation flow between the upper and lower layers of waste liquid in pool jar, constitute the mode of "in-cylinder stirring-cylinder circulation", so it can weaken even eliminate the problem of traditional single stirring paddle equipment existing stirring dead angle, or there is centrifugal analysis, improve mixing uniformity.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to an ammonia-containing wastewater treatment device. Background Technology

[0002] Ammonia stripping wastewater is a typical type of highly polluting wastewater in industrial production, mainly originating from the ammonia stripping process in industries such as coking, coal chemical, iron and steel smelting, and fertilizer production. Direct discharge of this type of wastewater can lead to eutrophication of water bodies, damage aquatic ecosystems, and cause toxic and harmful substances to accumulate through the food chain, threatening human health. Therefore, it must undergo strict treatment to meet standards before being discharged or reused. Currently, conventional treatment processes for ammonia-containing wastewater mainly employ physical, chemical, and biochemical methods. The chemical method involves adding chemical reagents to the wastewater, causing the ammonia to react and produce water-insoluble precipitates, thus achieving ammonia removal. The flocculation process is also combined with stirring to ensure thorough mixing of the reagents and wastewater.

[0003] However, traditional mixing equipment often uses a single mixing paddle structure, which has dead zones in the mixing process, resulting in uneven mixing of the reagent and wastewater and low reaction efficiency. Directly adding the reagent to the wastewater can easily lead to local accumulation, which can also cause excessively high local concentrations of the reagent, resulting in waste or incomplete treatment.

[0004] Therefore, there is an urgent need for an optimized ammonia-eating wastewater treatment equipment to solve the problems of uneven mixing and low reaction efficiency. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art by proposing an ammonia-removing wastewater treatment device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A wastewater treatment device for ammonia vaporization includes a tank. The tank is equipped with an injection pipe with a valve, a discharge pipe, and a dosing pipe. A truss is provided at the upper end of the tank, and a propulsion-type stirring paddle is provided on the truss. The stirring paddle is driven by a geared motor. A concentric cylinder is installed inside the tank through a crossbeam, and the stirring paddle is located inside the concentric cylinder.

[0007] Preferably, the concentric cylinder has two diverter plates symmetrically arranged at its upper center, and the two diverter plates are symmetrically upturned.

[0008] Preferably, the stirring paddle includes a stirring rod and a plurality of stirring fans spaced apart along the axial direction of the stirring rod.

[0009] Preferably, the stirring blade includes a mounting ring connected to the stirring rod, and a plurality of mounting plates are arranged around the outer edge of the mounting ring at intervals, on which inclined blades are detachably mounted.

[0010] Preferably, the mounting plate is a triangular iron piece, which is welded and fixed to the outer edge of the mounting ring in an inverted shape.

[0011] Preferably, each mounting plate has multiple fan blades spaced apart along its length.

[0012] Compared with the prior art, this utility model provides an ammonia-containing wastewater treatment device, which has the following beneficial effects: 1. In this invention, when the geared motor is running, it drives the agitator to rotate. The propulsion agitator pushes the waste liquid inside the concentric cylinder upwards, while the wastewater outside the concentric cylinder is replenished from the bottom of the concentric cylinder under the action of pressure difference. This creates a circulating flow between the upper and lower layers of waste liquid in the tank, forming a "stirring inside the cylinder - circulating outside the cylinder" mode. This can reduce or even eliminate the problems of stirring dead zones or centrifugal analysis that exist in traditional single agitator equipment, improve the mixing uniformity, and ensure that the wastewater in all areas of the tank can participate in the mixing reaction, thereby improving the efficiency of the reagent reaction, shortening the treatment time, and improving the treatment effect.

[0013] 2. The circulating method of this utility model also means that the stirring fan of the stirring paddle does not need to be set too close to the bottom of the tank. This means that the stirring rod of the stirring paddle does not need to be too long, shortening the transmission arm and reducing the load on the geared motor.

[0014] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0016] Figure 2 This is a top view of the present invention.

[0017] Figure 3 For the present utility model Figure 2 Schematic diagram of the cross section at point AA.

[0018] Figure 4 For the present utility model Figure 3 Partial schematic diagram of the assembly inside the concentric cylinder.

[0019] Figure 5 For the present utility model Figure 4 A partial schematic diagram of point B in the middle.

[0020] Figure 6 This is a three-dimensional schematic diagram of the mixing blade and connecting beam of this utility model.

[0021] Figure 7 For the present utility model Figure 6 A frontal view diagram.

[0022] In the diagram: 1. Tank; 2. Truss; 3. Agitator; 4. Concentric cylinder; 5. Diverter plate; 6. Bracket; 7. Crossbeam; 8. Horizontal plate; 31. Agitator rod; 32. Mounting ring; 33. Mounting plate; 34. Fan blade. Detailed Implementation

[0023] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0024] Example 1: To optimize ammonia wastewater treatment, this patent provides an improved treatment device, including a tank 1. The tank 1 can be underground (the tank is buried underground), above ground (the tank stands on the ground), or suspended (the tank is supported by a frame, suitable for small and medium-sized treatment tanks 1).

[0025] Tank 1 is equipped with an injection pipe for inputting waste liquid and a discharge pipe for discharging purified liquid after flocculation treatment. The injection pipe is located at the top of tank 1 and the discharge pipe is located at the bottom of tank 1. Both are equipped with a weighted solenoid valve to control their opening and closing.

[0026] A truss 2 is provided at the upper port of tank 1. The truss 2 is fixed to the port of tank 1 by anchor rods or ground anchor bolts, providing an installation foundation for the geared motor and agitator 3. Furthermore, a ladder is provided on the side wall of tank 1, and a steel structure walkway connecting the ladder and the truss 2 is provided at the upper port of tank 1 to facilitate the maintenance and disassembly of the geared motor and agitator 3.

[0027] A geared motor is fixedly mounted on truss 2 using self-locking bolts and nuts. The output shaft of the geared motor is connected to an agitator 3 via a coupling. The agitator 3 is rotatably mounted on truss 2 via bearing seats. The bearing seats are also locked using self-locking bolts and nuts. The agitator shaft adopts a propulsion structure and propels upwards to transport the waste liquid from the lower layer of tank 1 to the upper layer.

[0028] Two sets of crossbeams 7 are symmetrically welded and fixed to the inner wall of the tank 1. Concentric cylinders 4 are welded and fixed to the opposite ends of the two sets of crossbeams 7, and the agitator 3 is covered by the concentric cylinders 4. A horizontal plate 8 is also welded and fixed inside the concentric cylinder 4. The agitator shaft is also rotatably engaged with the horizontal plate 8, and the horizontal plate 8 provides auxiliary support for the agitator 3.

[0029] The side wall of tank 1 is also equipped with a dosing pipe, which connects to a chemical tank via a pump. The dosing pipe is equipped with an electric valve and a check valve. The electric valve is for shutting off waste liquid, and the check valve is to prevent waste liquid backflow. Of course, the dosing pipe can also be directly installed at the upper port of tank 1.

[0030] Based on the above technical solution: After the reagent is added through the dosing pipe, it diffuses from below the agitator 3. When the geared motor runs, it drives the agitator 3 to rotate. The propulsion agitator 3 pushes the waste liquid inside the concentric cylinder 4 upwards, while the wastewater outside the concentric cylinder 4 is replenished from the bottom of the concentric cylinder 4 under the action of pressure difference. This creates a circulating flow between the upper and lower layers of waste liquid in the tank 1, forming an "inner cylinder stirring - outer cylinder circulation" mode. This can reduce or even eliminate the stirring dead zones or centrifugal analysis problems that exist in traditional single agitator 3 equipment, improve the mixing uniformity, and ensure that the wastewater in all areas of the tank 1 can participate in the mixing reaction, thereby improving the reagent reaction efficiency, shortening the treatment time, and improving the treatment effect. The circulation method also means that the stirring part of the agitator 3 (i.e., the stirring fan mentioned later) does not need to be set too close to the bottom of the tank 1. This means that the stirring rod 31 of the agitator 3 does not need to be too long, shortening the transmission arm and reducing the load on the geared motor.

[0031] In Example 2, to create a more stable "rising inside the cylinder and falling outside the cylinder" cycle, two symmetrical diversion plates 5 are provided at the center of the upper end of the concentric cylinder 4, with the two diversion plates 5 symmetrically angled upwards. The core function of the diversion plates 5 is to optimize the upward flow direction of the water in the concentric cylinder 4. When the agitator 3 drives the wastewater in the concentric cylinder 4 to surge upwards to the cylinder opening, the two symmetrical diversion plates 5 guide the upward-flowing water to both sides. When it impacts the upper layer of waste liquid, it forms an arc pressure flow, causing the sinking water to slowly flow down the inner wall of the tank 1 and then re-enter the cylinder from the bottom of the concentric cylinder 4, thus forming a more stable cycle. At the same time, it expands the coverage area of ​​the upward-flowing water, further eliminating the stirring dead zone in the upper part of the tank 1. On the other hand, the diversion plates 5 guide the upward-flowing liquid to the side wall of the tank 1 to prevent the liquid from rushing directly to the liquid surface and causing excessive turbulence on the liquid surface.

[0032] The lower end of the diverter plate 5 has an inverted isosceles trapezoidal structure, while the upper end of the concentric cylinder 4 is welded and fixed with an inverted trapezoidal bracket 6. The diverter plate 5 is fastened onto the bracket 6 by inverted snap-fit, and locked with self-locking bolts and self-locking nuts, or directly welded and fixed. The diverter plate 5 is fastened on the lower side of the bracket 6, rather than on the upper side. This way, the upward hydraulic pressure on the diverter plate 5 can be distributed to the bracket 6, instead of being installed at the upper end, where the force is only borne at the connection between the bracket 6 and the diverter plate 5.

[0033] In Example 3, to further improve mixing uniformity, the stirring paddle 3 includes a stirring rod 31 and multiple stirring fans spaced apart along the axial direction of the stirring rod 31. The stirring rod 31 receives power from the motor, while the multiple stirring fans can be fixed to the stirring rod 31 by welding or by locking with self-locking screws. Stirring fans of different heights can cover a wider active stirring area within the tank 1; and with multiple stirring fans located within a concentric cylinder 4, the synchronous stirring of multiple sets of fans allows the liquid flowing out of the cylinder to withstand higher water pressure, resulting in more pronounced water circulation.

[0034] Example 4 provides a specific structure that achieves the propulsive effect of the stirring blade 3: The stirring blade 34 includes a mounting ring 32 connected to the stirring rod 31. Multiple mounting plates 33 are spaced around the outer edge of the mounting ring 32 and welded to the mounting ring 32. The blade 34 is detachably mounted on the mounting plate 33 via self-locking bolts and self-locking nuts. The mounting plate 33 is a triangular iron, welded and fixed to the outer edge of the mounting ring 32 in an inverted manner. The blade 34 rests flat against the inclined surface of the triangular iron, thus maintaining a planar tilt and not tilting to either side. This significantly reduces the centrifugal force generated during stirring, thereby reducing the impact pressure on the inner wall of the cylinder.

[0035] Each mounting plate 33 is provided with multiple fan blades 34 spaced apart along its length, so as to avoid a single fan blade 34 bearing the water pressure, and to share the water pressure with multiple fan blades 34.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An ammonia-containing wastewater treatment device, characterized in that, The tank (1) includes a liquid injection pipe, a liquid discharge pipe and a chemical dosing pipe with valves. A truss (2) is provided at the upper port of the tank (1). A propulsion-type stirring paddle (3) is provided on the truss (2). The stirring paddle (3) is driven by a geared motor. A concentric cylinder (4) is installed inside the tank (1) through a crossbeam (7). The stirring paddle (3) is located inside the concentric cylinder (4).

2. The ammonia-containing wastewater treatment equipment according to claim 1, characterized in that, The concentric tube (4) is symmetrically provided with two diversion plates (5) at the upper center, and the two diversion plates (5) are symmetrically tilted upwards.

3. The ammonia-containing wastewater treatment equipment according to claim 1, characterized in that, The stirring paddle (3) includes a stirring rod (31) and a plurality of stirring fans spaced apart along the axial direction of the stirring rod (31).

4. The ammonia-containing wastewater treatment equipment according to claim 3, characterized in that, The stirring fan includes a mounting ring (32) connected to the stirring rod (31). Multiple mounting plates (33) are arranged around the outer edge of the mounting ring (32) at intervals. Inclined fan blades (34) are detachably mounted on the mounting plates (33).

5. The ammonia-containing wastewater treatment equipment according to claim 4, characterized in that, The mounting plate (33) is triangular in shape and is welded and fixed to the outer edge of the mounting ring (32) in an inverted shape.

6. The ammonia-containing wastewater treatment equipment according to claim 4, characterized in that, Each mounting plate (33) is provided with multiple fan blades (34) spaced apart along its length.

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