CN219098875U

CN219098875U - Catalytic wet oxidation wastewater pretreatment device

Info

Publication number: CN219098875U
Application number: CN202223541978.8U
Authority: CN
Inventors: 王玉岗; 张宏伟; 乔胜超; 李建军; 张大龙
Original assignee: Shandong Xinhecheng Fine Chemical Technology Co Ltd
Current assignee: Shandong Xinhecheng Fine Chemical Technology Co Ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-05-30
Anticipated expiration: 2032-12-16

Abstract

The application provides a catalysis wet oxidation wastewater pretreatment device relates to wastewater pretreatment field, which comprises a tank body, the bottom fixedly connected with bracing piece of the jar body, the notch has been seted up at the top of the jar body, fixedly connected with upper cover in the notch, fixedly connected with sealing washer in the notch, sealing washer and upper cover laminating, the bottom fixedly connected with motor of upper cover, inlet pipe one and inlet pipe two, the output fixedly connected with pivot of motor, fixedly connected with flabellum on the periphery of pivot, pivot and flabellum all set up in the jar body, jar body bottom fixedly connected with bracing piece, the bottom fixedly connected with discharging pipe of the jar body. According to the utility model, wastewater and sodium hypochlorite enter the tank body through the first feeding pipe and the second feeding pipe, the rotating shaft is rotated by controlling the motor, the wastewater and the sodium hypochlorite in the tank body are fully stirred through the fan blades, and the stirred mixture is conveyed into the heating device through the discharging pipe.

Description

Catalytic wet oxidation wastewater pretreatment device

Technical Field

The application belongs to the technical field of wastewater treatment, and more particularly relates to a catalytic wet oxidation wastewater pretreatment device.

Background

Catalytic wet oxidation (cwhao) is a green technology for efficient removal of high concentration organic wastewater. The CWAO reaction is usually carried out under the combined action of high temperature (120-320 ℃) and high pressure (0.5-20 MPa) and sodium hypochlorite. The technology is suitable for treating organic wastewater with Chemical Oxygen Demand (COD) of 15000-100000 mg/L. The waste water produced in the production processes of energy, chemical industry, pesticide, medicine, fuel and the like has high organic matter content and high salt content. The high-salt wastewater discharge amount of China is counted to be 5% of the total wastewater, and the wastewater discharge amount still increases at a rate of 2% per year. The high-salt wastewater can cause a series of problems such as equipment corrosion, sodium hypochlorite poisoning, reaction system blockage and the like.

In the actual production process, the organic matter removal rate of the wastewater is up to 99% and cannot be continuously improved, and the treated wastewater does not meet the requirements of the ionic membrane caustic soda. In order to improve the capability of removing organic matters of CWAO, the influence of different components in actual wastewater on an oxidation experiment is explored. The method for solving the problem that the small molecular organic matters in the wastewater are difficult to oxidize is confirmed to be the small molecular organic matters, the mode for solving the small molecular organic matters in the wastewater at the present stage is to pretreat the wastewater entering the CWAO device in advance, but the heat exchange efficiency of the heat exchanger is reduced due to the blockage of the heat exchanger caused by the coking of the large molecular organic matters in the wastewater, and the removal rate of the organic matters in the wastewater is lower due to the difficulty in oxidizing the small molecular organic matters.

Disclosure of Invention

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: the utility model provides a catalysis wet oxidation wastewater pretreatment device, which comprises a tank body, the bottom fixedly connected with bracing piece of the jar body, the notch has been seted up at the top of the jar body, fixedly connected with upper cover in the notch, fixedly connected with sealing washer in the notch, the sealing washer is laminated with the upper cover, the bottom fixedly connected with motor, inlet pipe one and inlet pipe two of upper cover, the output fixedly connected with pivot of motor, fixedly connected with flabellum on the periphery of pivot, pivot and flabellum all set up in the jar body, jar body bottom fixedly connected with bracing piece, the bottom fixedly connected with discharging pipe of the jar body.

Preferably, the circumference surfaces of the tank body and the upper cover are fixedly connected with a fixing ring, and the fixing ring is fixedly connected with a nut through a bolt.

Preferably, the support rods are three, and the bottoms of the support rods are provided with discs.

Preferably, the fan blades are provided with a plurality of fan blades and are uniformly distributed on the circumferential surface of the rotating shaft.

Preferably, the rotary rod is movably connected to the circumferential surface of the discharging pipe through a bearing, a hemispherical valve port is fixedly connected to the circumferential surface of the rotary rod, and is positioned in the discharging pipe and attached to the inner wall of the discharging pipe, and a rotary handle is fixedly connected to one end, far away from the discharging pipe, of the rotary rod.

The utility model has the following beneficial effects:

compared with the prior art, the catalytic wet oxidation wastewater pretreatment device has the advantages that wastewater and sodium hypochlorite firstly enter the tank body through the first feeding pipe and the second feeding pipe, the rotary shaft is rotated through the control motor, the wastewater and the sodium hypochlorite in the tank body are fully stirred through the fan blades, the stirred mixture is conveyed into the heating device through the discharging pipe, and compared with the prior art, the catalytic wet oxidation wastewater pretreatment device solves the problem that small molecular organic matters in the wastewater are stirred and treated in advance, macromolecular organic matters in the wastewater are difficult to coke, and therefore the organic matter removal rate in the wastewater is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a modified flow chart of wastewater pretreatment;

FIG. 2 is an external construction view of a tank of a catalytic wet oxidation wastewater pretreatment device;

FIG. 3 is an internal construction view of a tank of a catalytic wet oxidation wastewater pretreatment device;

FIG. 4 is a diagram showing the construction of a retaining ring of a catalytic wet oxidation wastewater pretreatment device;

FIG. 5 is a schematic diagram of a hemispherical valve port structure of a catalytic wet oxidation wastewater pretreatment device;

fig. 6 is a partial enlarged view at a in fig. 2.

The symbols in the drawings illustrate:

1. a tank body; 2. a support rod; 3. an upper cover; 4. a first feeding pipe; 5. a second feeding pipe; 6. a discharge pipe; 7. rotating the handle; 8. a motor; 9. a fixing ring; 10. a rotating shaft; 11. a fan blade; 12. a nut; 13. a bolt; 14. a hemispherical valve port; 15. a rotating lever; 16. a seal ring; 17. notch.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

A catalytic wet oxidation wastewater pretreatment device provided in an embodiment of the present application will now be described. Referring to fig. 1 to 6, a catalytic wet oxidation wastewater pretreatment device, which comprises a tank body 1, the bottom fixedly connected with bracing piece 2 of the tank body 1, notch 17 has been seted up at the top of the tank body 1, fixedly connected with upper cover 3 in the notch 17, fixedly connected with sealing washer 16 in the notch 17, sealing washer 16 is laminated with upper cover 3, the bottom fixedly connected with motor 8, inlet pipe one 4 and inlet pipe two 5 of upper cover 3, the output fixedly connected with pivot 10 of motor 8, fixedly connected with flabellum 11 on the periphery of pivot 10, pivot 10 and flabellum 11 all set up in the tank body 1, tank body 1 bottom fixedly connected with bracing piece 2, tank body 1's bottom fixedly connected with discharging pipe 6, in order to prevent macromolecular organic matter coking in the waste water, can be earlier with waste water and sodium hypochlorite get into tank body 1 through inlet pipe one 4 and inlet pipe two 5, rethread control motor 8 makes pivot 10 rotate, and through flabellum 11 to tank body 1 in the big thing and sodium hypochlorite fully stir, so that the heat exchanger's in the waste water can not be fully blocked up the heat exchanger device is carried out to the heat transfer efficiency of the heat exchanger that the interior heat exchanger is fully to the waste water, thereby prevent the waste water from falling down.

The tank body 1 and the upper cover 3 are fixedly connected with the fixing ring 9 on the circumferential surfaces, the fixing ring 9 is fixedly connected with the nut 12 through the bolt 13, and the tank body 1 and the upper cover 3 can be better fixed through the fixing ring 9.

The support rods 2 are arranged in three, and the bottoms of the support rods 2 are provided with discs, so that the tank body 1 can be more stable during working.

The fan blades 11 are provided with a plurality of fan blades, and are uniformly distributed on the circumferential surface of the rotating shaft 10, and the plurality of fan blades 11 can fully mix the liquid in the tank body 1.

The rotary handle is characterized in that a rotary rod 15 is movably connected to the circumferential surface of the discharging pipe 6 through a bearing, a hemispherical valve port 14 is fixedly connected to the circumferential surface of the rotary rod 15, the hemispherical valve port 14 is positioned in the discharging pipe 6 and is attached to the inner wall of the discharging pipe 6, one end, far away from the discharging pipe 6, of the rotary rod 15 is fixedly connected with the rotary handle 7, and after the mixture in the tank body 1 is fully mixed through the hemispherical valve port 14, the mixture flows into the heating device through the rotary handle 7.

Working principle: firstly, waste water and sodium hypochlorite enter the pipe through the first feeding pipe 4 and the second feeding pipe 5, the rotary shaft 10 is rotated through the control motor 8, the waste water and the sodium hypochlorite in the tank body 1 are fully stirred through the fan blades 11 on the rotary shaft 10, macromolecular organic matters in the waste water are not easy to coke, after the full stirring is completed, the rotary handle 7 is rotated, the hemispherical valve port 14 at the other end of the rotary rod 15 is rotated, the mixture in the tank body 1 is conveyed into the heating device through the discharging pipe 6, and therefore the mixture in the tank body 1 is not easy to coke through the full stirring of the rotary shaft 10 and the fan blades 11 in the tank body 1, the heat exchange pipe in the heating device is effectively prevented from being blocked, and the organic matter removal rate of the waste water is improved.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims

1. The utility model provides a catalytic wet oxidation wastewater pretreatment device, includes a jar body (1), its characterized in that: the utility model discloses a jar of solid (1), including jar body (1) bottom fixedly connected with bracing piece (2), notch (17) have been seted up at the top of jar body (1), fixedly connected with upper cover (3) in notch (17), fixedly connected with sealing washer (16) in notch (17), sealing washer (16) laminating with upper cover (3), the bottom fixedly connected with motor (8), inlet pipe one (4) and inlet pipe two (5) of upper cover (3), the output fixedly connected with pivot (10) of motor (8), fixedly connected with flabellum (11) on the periphery of pivot (10), pivot (10) and flabellum (11) all set up in jar body (1), jar body (1) bottom fixedly connected with bracing piece (2), the bottom fixedly connected with discharging pipe (6) of jar body (1).

2. The catalytic wet oxidation wastewater pretreatment device according to claim 1, wherein: the tank body (1) and the upper cover (3) are fixedly connected with a fixing ring (9) on the circumferential surfaces, and the fixing ring (9) is fixedly connected with a nut (12) through a bolt (13).

3. The catalytic wet oxidation wastewater pretreatment device according to claim 1, wherein: the support rods (2) are three, and the bottoms of the support rods (2) are provided with discs.

4. The catalytic wet oxidation wastewater pretreatment device according to claim 1, wherein: the fan blades (11) are arranged in a plurality and are uniformly distributed on the circumferential surface of the rotating shaft (10).

5. The catalytic wet oxidation wastewater pretreatment device according to claim 1, wherein: the novel discharging pipe is characterized in that a rotating rod (15) is movably connected to the circumferential surface of the discharging pipe (6) through a bearing, a hemispherical valve port (14) is fixedly connected to the circumferential surface of the rotating rod (15), the hemispherical valve port (14) is located in the discharging pipe (6) and is attached to the inner wall of the discharging pipe (6), and a rotating handle (7) is fixedly connected to one end, far away from the discharging pipe (6), of the rotating rod (15).