CN219596535U

CN219596535U - Catalytic oxidation treatment device for papermaking discharge water

Info

Publication number: CN219596535U
Application number: CN202320335902.5U
Authority: CN
Inventors: 李文斌
Original assignee: Jiangsu Lee and Man Paper Manufacturing Co Ltd
Current assignee: Jiangsu Lee and Man Paper Manufacturing Co Ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-08-29
Anticipated expiration: 2033-02-28

Abstract

The utility model discloses a catalytic oxidation treatment device for papermaking wastewater in the technical field of sewage treatment, which aims to solve the problems that the device for Fenton process treatment is fewer and inconvenient in the prior art, and the like, and comprises a main body, wherein one side of the main body is communicated with a water inlet pipeline, a motor is arranged outside the other side of the main body, the motor is connected with a stirring shaft, the stirring shaft extends into the main body, and a plurality of stirring fan blades are distributed on the periphery of the stirring shaft; the main part top is equipped with hydrogen peroxide and adds fill and ferrous sulfate and add fill, and the below is equipped with the main part outside that is equipped with the mud discharge port directly over, and the cylinder links to each other with the connecting axle, and the connecting axle extends to the main part inside and is connected with the push pedal, and a plurality of pestles are laid to the push pedal lower surface. The utility model can improve the accuracy of the feeding proportion, is convenient for sludge treatment, and has simple operation and convenient use.

Description

Catalytic oxidation treatment device for papermaking discharge water

Technical Field

The utility model relates to a catalytic oxidation treatment device for papermaking wastewater, belonging to the technical field of sewage treatment.

Background

The papermaking wastewater is mainly characterized in that: (1) The pollutant concentration is high, and especially the pulping production wastewater contains a large amount of raw material dissolved matters and chemical additives; (2) The refractory organic matter has a plurality of components, poor biodegradability, and lignin, cellulose and other substances are difficult to degrade by adopting a biological treatment method; (3) The wastewater has complex components, and some wastewater contains chemicals which are unfavorable for biochemical treatment, such as sulfide, printing ink, flocculating agent and the like; (4) The wastewater flow and the load fluctuation amplitude are large, which is very unfavorable for the stable operation of the biochemical treatment system. Common papermaking wastewater treatment methods mainly comprise a physical method, a physicochemical method, a biochemical method and the like. However, these methods have the disadvantages of limited treatment effect, possibility of secondary pollution, high cost and the like, and cannot achieve satisfactory treatment effect.

Fenton advanced oxidation technology is an emerging water treatment technology developed in recent 20 years, and has become a hot spot subject in the research field of domestic and foreign water treatment due to the advantages of high efficiency, universality, thoroughness of oxidative degradation and the like in pollutant degradation. The key to advanced oxidation technology is the generation of hydroxyl radicals that are strongly oxidizing.

However, the Fenton process has a series of problems at present, such as poor control of the addition ratio of hydrogen peroxide to ferrous sulfate, more sludge, high treatment cost, high treatment labor intensity and the like, and a treatment device for effectively aiming at the Fenton process is lacking.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a catalytic oxidation treatment device for papermaking wastewater, which can improve the accuracy of the feeding proportion, is convenient for sludge treatment, and is simple to operate and convenient to use.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme: the utility model provides a papermaking discharge water catalytic oxidation processing apparatus, includes the main part, main part one side and inlet channel intercommunication, opposite side outside are equipped with the motor, the motor is connected with the (mixing) shaft, the (mixing) shaft extends to inside the main part, and the periphery has been laid a plurality of stirring fan pieces.

The device is characterized in that a hydrogen peroxide adding hopper, a ferrous sulfate adding hopper and a sewage water outlet are respectively arranged above the main body, a sludge outlet is arranged below the main body, an air cylinder is arranged outside the main body and is located right above the sludge outlet, the air cylinder is connected with a connecting shaft, the connecting shaft extends to the inside of the main body to be connected with a pushing plate, and a plurality of pestles are arranged on the lower surface of the pushing plate.

Optionally, the cross section of main part both sides is circular, the motor is located main part one side through the mount pad.

Optionally, the inlet channel is connected with one end of the branch pipeline, the other end of the branch pipeline is connected with the pretreatment box, and the pretreatment box is arranged above the main body.

Optionally, a PH meter is arranged in the pretreatment tank and is used for monitoring the PH value of sewage in the pretreatment tank.

Optionally, the stirring fan is evenly distributed on the periphery of the stirring shaft, and a plurality of through holes are distributed on the stirring fan.

Optionally, the inside cavity that is equipped with of (mixing) shaft, be equipped with a plurality of heaters in the cavity, and the tip both sides that are close to with the motor are equipped with the pipeline of giving vent to anger, the pipeline of giving vent to anger passes the main part and extends to outside.

Optionally, a filter screen is arranged in the ferrous sulfate adding hopper and is used for screening particle sizes of the ferrous sulfate blocks.

Optionally, the end of the pestle rod is pointed.

Optionally, the cover is equipped with a plurality of supports on the main part, the support below is connected with the supporting seat, the cover is equipped with the lantern ring on the mud discharge port, supporting seat and lantern ring are all connected with the platform through the bracing piece.

Compared with the prior art, the utility model has the beneficial effects that:

the stirring mechanism is arranged in the main body, so that the catalytic oxidation reaction rate can be accelerated, and the heater is also arranged in the stirring shaft, so that the sewage is properly heated, and the catalytic oxidation reaction process can be accelerated;

the utility model is provided with the pretreatment box, after the sewage is pumped into the pretreatment box, hydrogen peroxide and ferrous sulfate can be put into the pretreatment box in advance, and the PH value of the sewage is monitored by the PH meter, so that the proper feeding proportion is determined;

the sludge discharge outlet is provided with the push plate and the pestle rod driven by the air cylinder, the push plate and the pestle rod can poke out sludge from the bottom of the main body under the driving of the air cylinder, the discharge outlet is prevented from being blocked when the sludge is discharged, the discharging is difficult, and the push plate and the pestle rod can poke the sludge under the driving of the air cylinder, so that the operation is simple and the use is convenient.

Drawings

FIG. 1 is a schematic cross-sectional view of a catalytic oxidation treatment apparatus for papermaking wastewater in one embodiment of the present utility model;

FIG. 2 is a schematic view showing the external structure of a catalytic oxidation treatment apparatus for papermaking wastewater according to an embodiment of the present utility model;

in the figure: 1 main body, 2 platform, 21 support, 22 supporting seat, 23 supporting rod, 24 lantern ring, 3 motor, 4 mount pad, 5 (mixing) shaft, 51 air outlet pipeline, 6 (mixing) fan blade, 61 through hole, 7 heater, 8 (water inlet) pipeline, 9 branch pipeline, 10 pretreatment box, 11PH meter, 12 hydrogen peroxide adding hopper, 13 ferrous sulfate adding hopper, 131 filter screen, 14 cylinder, 15 connecting shaft, 16 push plate, 161 pestle pole, 17 sludge discharge outlet, 18 sewage discharge outlet.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

Example 1:

as shown in fig. 1, the catalytic oxidation treatment device for papermaking emission provided by the embodiment of the utility model comprises a main body 1, wherein the cross sections of two sides of the main body 1 are circular, one side of the main body is provided with a motor 3 through a mounting seat 4, and the other side of the main body is communicated with a water inlet pipeline 8.

The motor 3 is connected with the stirring shaft 5, the stirring shaft 5 extends to the inside of the main body, and a plurality of stirring fan blades 6 are distributed on the periphery of the stirring shaft 5, and in particular, the stirring fan blades 6 can be uniformly distributed in four directions of the stirring shaft 5. A plurality of through holes 61 are distributed on the stirring fan blade 6, so that the stirring efficiency is effectively improved.

The inside cavity that is equipped with of (mixing) shaft 5, the cavity inner wall is equipped with a plurality of heaters 7, can carry out appropriate heating to sewage, promotes catalytic oxidation reaction rate, because the air in the cavity can expand after the heating, consequently be equipped with the gas outlet pipe 51 from top to bottom at the tip that (mixing) shaft 5 is close to with motor 3 mutually, the gas outlet pipe 51 passes main part 1 and extends to outside, keeps (mixing) shaft 5 and outside air unblocked.

The main part 1 top is equipped with sewage outlet 18, and the hydrogen peroxide adds fill 12 and ferrous sulfate and adds fill 13, and the below is equipped with mud discharge port 17 to the position of mud discharge port 17 needs to stagger with (mixing) shaft 5, is equipped with filter screen 131 in the ferrous sulfate adds fill 13, and filter screen 131 is used for carrying out the particle size screening to the ferrous sulfate piece, makes the ferrous sulfate piece that the particle size is little can pass through, and the ferrous sulfate piece that the particle size is big just remains on filter screen 131, cooperation outside crushing mechanism smashes again at this moment and can put into use again.

The cylinder 14 is arranged outside the main body 1 right above the sludge discharge port 17, the cylinder 14 is connected with the connecting shaft 15, and the position of the sludge discharge port 17 and the stirring shaft 5 are staggered, and the connecting shaft 15 is positioned at the gap between the stirring blades 6, so that the rotation of the stirring shaft 5 does not collide with the connecting shaft 15. The connecting shaft 15 extends into the main body 1 and is connected to the push plate 16, a plurality of pestles 161 are arranged on the lower surface of the push plate 16, and the distal ends of the pestles 161 are pointed, so that when the sludge blocks the sludge discharge port 17, the sludge can be pierced, and the sludge discharge port 17 can be dredged.

Example 2:

on the basis of embodiment 1, this embodiment further includes a pretreatment tank 10, the water inlet pipe 8 is connected with one end of the branch pipe 9, the other end of the branch pipe 9 is connected with the pretreatment tank 10, a metering pump (not shown in the figure) is provided on the branch pipe 9, the amount of sewage to be pumped is conveniently calculated, and the pretreatment tank 10 is disposed above the main body 1. The PH meter 11 is arranged in the pretreatment tank 10, the PH meter 11 is used for monitoring the PH value of sewage, and a small amount of sewage is extracted in advance to carry out catalytic oxidation before the sewage is actually treated, so that the adding proportion and the dosage of hydrogen peroxide and ferrous sulfate are determined.

The water inlet pipeline 8, the branch pipeline 9 and the hydrogen peroxide adding hopper 12 are all provided with metering electromagnetic valves, and the metering electromagnetic valves can be electrically connected with an external controller, so that the control of workers is facilitated.

Referring to fig. 2, a plurality of brackets 21 are sleeved on the main body 1, the lower parts of the brackets 21 are connected with a supporting seat 22, a collar 24 is sleeved on the sludge discharge outlet 17, and the supporting seat 22 and the collar 24 are connected with the platform 2 through supporting rods 23, so that the whole main body 1 is supported.

The working principle of the utility model is as follows: first, the water inlet pipe 8 is opened, sewage is put into the main body 1, and at this time, the branch pipe 9 is opened, and a part of sewage is drawn into the pretreatment tank 10.

Before formal treatment, hydrogen peroxide and ferrous sulfate blocks are put into a pretreatment tank 10 to catalyze and oxidize sewage, and the PH meter 11 is used for monitoring the sewage during the period, so that the putting amount and the putting proportion of the hydrogen peroxide and the ferrous sulfate blocks are determined according to the characteristics of the sewage to be treated.

Then, according to the amount of sewage, the amount of hydrogen peroxide and ferrous sulfate put in the main body 1 and the proportion of the hydrogen peroxide and the ferrous sulfate put in, the amount of the hydrogen peroxide and the ferrous sulfate to be put in is determined. Starting the motor 3, driving the stirring shaft 5 to rotate by the motor 3, stirring the sewage by the stirring fan 6, and simultaneously starting the heater 7 to properly heat the sewage, so that the reaction rate is accelerated, in the stirring process, gradually adding hydrogen peroxide from the hydrogen peroxide adding hopper 12, adding ferrous sulfate from the ferrous sulfate adding hopper 13, and carrying out catalytic oxidation reaction on the sewage.

After the catalytic oxidation reaction is finished, standing for a period of time to enable sludge to be deposited at the bottom of the main body 1, and then stretching a pipeline into the sewage outlet 18 to suck the sewage treated on the upper layer. When only sludge remains in the main body 1, the sludge discharge port 17 is opened, the cylinder 14 is started, and the cylinder 14 drives the connecting shaft 15, the push plate 16 and the pestle rod 161 to downwards dredge the sludge accumulated at the sludge discharge port 17, so that smooth completion of sludge discharge is ensured.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims

1. A papermaking effluent water catalytic oxidation treatment device is characterized in that: the stirring device comprises a main body, wherein one side of the main body is communicated with a water inlet pipeline, a motor is arranged outside the other side of the main body, the motor is connected with a stirring shaft, the stirring shaft extends to the inside of the main body, and a plurality of stirring blades are distributed on the periphery of the stirring shaft;

2. A papermaking wastewater catalytic oxidation treatment device according to claim 1, wherein: the section of main part both sides is circular, the motor is located main part one side through the mount pad.

3. A papermaking wastewater catalytic oxidation treatment device according to claim 1, wherein: the inlet channel is connected with one end of the branch pipeline, the other end of the branch pipeline is connected with the pretreatment box, and the pretreatment box is arranged above the main body.

4. A papermaking wastewater catalytic oxidation treatment device according to claim 3, wherein: the PH meter is arranged in the pretreatment tank and is used for monitoring the PH value of sewage in the pretreatment tank.

5. A papermaking wastewater catalytic oxidation treatment device according to claim 1, wherein: the stirring fan blades are uniformly distributed on the periphery of the stirring shaft, and a plurality of through holes are distributed in the stirring fan blades.

6. A papermaking wastewater catalytic oxidation treatment device according to claim 5, wherein: the stirring shaft is internally provided with a cavity, a plurality of heaters are arranged in the cavity, two sides of the end part close to the motor are provided with air outlet pipelines, and the air outlet pipelines penetrate through the main body and extend to the outside.

7. A papermaking wastewater catalytic oxidation treatment device according to claim 1, wherein: the ferrous sulfate adding hopper is internally provided with a filter screen which is used for screening particle sizes of ferrous sulfate blocks.

8. A papermaking wastewater catalytic oxidation treatment device according to claim 1, wherein: the end of the pestle rod is pointed.

9. The catalytic oxidation treatment device for papermaking wastewater according to any one of claims 1-8, wherein the catalytic oxidation treatment device is characterized in that: the main body is sleeved with a plurality of supports, the lower parts of the supports are connected with a supporting seat, the sludge discharge outlet is sleeved with a lantern ring, and the supporting seat and the lantern ring are connected with a platform through supporting rods.