Rotational flow aeration type Fenton device

Abstract

The utility model relates to the field of water treatment equipment, in particular to a rotational flow aeration type Fenton device. The utility model discloses a rotational flow aeration type Fenton device which comprises a Fenton reaction tower body, a water inlet is formed in one side of the bottom of the Fenton reaction tower body, a water outlet is formed in the top of the other side of the Fenton reaction tower body, a water collecting area is arranged in the middle of the Fenton reaction tower body, an aeration pipe is arranged in the water collecting area, and a rotational flow aerator is arranged at one end of the aeration pipe. According to the utility model, gas enters from the bottom of the spiral-flow aerator and is mixed with sewage, and in the spiral-flow aerator, the mixture of the gas and the sewage is cut and crushed for multiple times in the high-speed rotation process to form a large number of ultramicro bubbles. By utilizing a rotational flow principle, bubbles and sewage are fully mixed, and the dissolution rate, the mass transfer rate and the oxygen utilization rate of oxygen are increased. And meanwhile, the rotational flow can promote the suspension and mixing of the sludge and prevent the sludge from precipitating. According to the spiral-flow aerator, the aeration energy consumption is reduced through efficient gas dispersion and low-resistance design.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment equipment field, concretely relates to a cyclone aeration type fenton device. BACKGROUND

[0002] Fenton oxidation technology as the core means of advanced oxidation process, has the irreplaceable position in the field of refractory organic wastewater treatment. The traditional fenton reaction tower adopts the coupling working mode of "aeration system + mechanical stirring", and it has the following defects: 1. The gas bubble particle size generated by the conventional microporous aerator is large (usually > 3mm), and the rising speed is fast, which leads to low gas-liquid mass transfer efficiency, and the oxygen utilization rate is less than 40%; 2. The mechanical stirring device is prone to electrode corrosion and sealing failure in the strong acid (pH 2-4) reaction environment, and the equipment maintenance period is shortened by more than 60%; 3. The fluid dynamics of aeration zone and stirring zone are not matched, which causes obvious hydraulic dead zone (about 15-20% of total volume) in the reaction tower, and seriously affects the space-time distribution uniformity of free radicals. SUMMARY

[0003] The utility model hopes to provide a cyclone aeration type fenton device, and the specific scheme is as follows:

[0004] A cyclone aeration type fenton device, including fenton reaction tower body, the bottom side of fenton reaction tower body is equipped with water inlet, the top of the other side of fenton reaction tower body is equipped with water outlet, the middle of fenton reaction tower body is equipped with catchment area, the catchment area is equipped with aeration pipe, and the aeration pipe one end is equipped with cyclone aerator.

[0005] The side of fenton reaction tower body close to water outlet is equipped with water outlet area.

[0006] The cyclone aerator and catchment area are designed as an integrated cavity.

[0007] The inner wall of catchment area is provided with flow guide groove. The inner wall of catchment area is provided with flow guide groove. Thus guide fluid to form vortex rising path, so that sewage and reagent are fully reacted in flow guide groove.

[0008] The aeration pipe and cyclone aerator are connected through flange.

[0009] The water inlet is equipped with dosing pipeline.

[0010] The dosing pipeline includes sulfuric acid pipeline, ferrous sulfate pipeline and hydrogen peroxide pipeline.

[0011] The bottom of fenton reaction tower body is equipped with emptying port.

[0012] The top of fenton reaction tower body is equipped with manway.

[0013] The utility model discloses a rotatory flow aerator is added with the following advantages: gas enters from the bottom of the rotatory flow aerator, mixes with sewage, in the rotatory flow aerator, the gas and sewage mixture are cut and broken multiple times in the process of high -speed rotation, form a large number of supermicro bubbles. Utilize the principle of cyclone, make bubble and sewage fully mix, increase the solubility of oxygen, mass transfer rate and oxygen utilization. At the same time, cyclone can also promote the suspension and mixing of sludge, prevent sludge from depositing. The rotatory flow aerator reduces the aeration energy consumption through the efficient gas dispersion and low resistance design. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the main view of the utility model rotatory flow aeration type fenton device;

[0015] Figure 2 It is the section view A-A of the utility model rotatory flow aeration type fenton device;

[0016] Figure 3 It is the section view B-B of the utility model rotatory flow aeration type fenton device;

[0017] Figure 4 It is the axonometric drawing of the utility model rotatory flow aeration type fenton device.

[0018] Wherein the mark: 1. fenton reaction tower body, 2. water inlet, 3. water outlet, 4. emptying, 5. water collection area, 6. aeration pipe, 7. rotatory flow aerator, 8. water outlet area, 9. dosing pipe;10. pedestrian walkway. DETAILED DESCRIPTION

[0019] The following will be combined Figures 1-4 Further described:

[0020] A rotatory flow aeration type fenton device, including fenton reaction tower body 1, fenton reaction tower body 1 bottom one side is equipped with water inlet 2, and the top of the other side of fenton reaction tower body 1 is equipped with water outlet 3, and the middle of fenton reaction tower body 1 is equipped with water collection area 5, and the water collection area 5 is equipped with aeration pipe 6, and one end of aeration pipe 6 is equipped with rotatory flow aerator 7. Fenton reaction tower body 1 is equipped with water outlet area 8 on the side close to water outlet 3.

[0021] Rotatory flow aerator 7 and water collection area 5 are designed as an integrated cavity. The inner wall of water collection area 5 is provided with a flow guide groove. The inner wall of water collection area 5 is provided with a flow guide groove (not expressed in the figure). So as to guide the fluid to form a vortex rising path, so that the sewage and the medicament are fully reacted in the flow guide groove.

[0022] Aeration pipe 6 and rotatory flow aerator 7 are connected through flange.

[0023] Water inlet 2 is equipped with dosing pipeline 9. Dosing pipeline 9 includes sulfuric acid pipeline, ferrous sulfate pipeline and hydrogen peroxide pipeline.

[0024] The Fenton reaction tower body 1 is provided with a discharge port 4 at the bottom.

[0025] The working principle of the utility model is:

[0026] The utility model discloses a Fenton reaction tower body 1, which comprises a water inlet system, a reaction system, an aeration system, a water outlet system and a sludge discharge system.

[0027] The above is only the preferred embodiment of the utility model and is not used for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiment, for the person skilled in the art, still can modify the technical scheme recorded in the foregoing each embodiment or make equivalent replacement to part technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A swirl-aeration Fenton device, characterized in that: The device includes a Fenton reaction tower body, with an inlet on one side of the bottom of the Fenton reaction tower body and an outlet on the top of the other side of the Fenton reaction tower body. A water collection area is located in the middle of the Fenton reaction tower body, and an aeration pipe is installed in the water collection area. A swirl aerator is installed at one end of the aeration pipe.

2. The swirl-aeration Fenton device as described in claim 1, characterized in that: The Fenton reaction tower body has an outlet zone on the side near the outlet.

3. The swirl-aeration Fenton device as described in claim 1, characterized in that: The swirl aerator and the water collection area are designed as an integrated cavity.

4. The swirl-aeration Fenton device as described in claim 3, characterized in that: A flow guide channel is provided on the inner wall of the water collection area.

5. The swirl-aeration Fenton device as described in claim 1, characterized in that: The aeration pipe and the swirl aerator are connected by a flange.

6. The swirl-aeration Fenton device as described in claim 1, characterized in that: A chemical dosing pipe is installed at the water inlet.

7. A swirl-aeration Fenton device as described in claim 6, characterized in that: The dosing pipeline includes sulfuric acid pipeline, ferrous sulfate pipeline and hydrogen peroxide pipeline.

8. The swirl-aeration Fenton device as described in claim 1, characterized in that: The Fenton reaction tower is equipped with an air vent at the bottom.

9. A swirl-aeration Fenton device as described in claim 1, characterized in that: A pedestrian walkway is provided at the top of the Fenton reaction tower.

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