Novel treatment device for DMF (Dimethyl Formamide) production wastewater

Abstract

The utility model belongs to the technical field of wastewater treatment devices, and discloses a novel treatment device for DMF (Dimethyl Formamide) production wastewater, which comprises an oxidation pond, and a plurality of feeding mechanisms are arranged in the oxidation pond; the feeding mechanism comprises a mounting frame, a first mounting groove, a mixing frame, a plurality of first electromagnetic valves, a water outlet pipe, a plurality of nozzles, a second mounting groove, a sealing frame and a plurality of water pumps, the first mounting groove and the second mounting groove are formed in one side of the mounting frame, and the first mounting groove is located in the top of the second mounting groove; according to the wastewater treatment device, the mounting frame capable of moving up and down is arranged in the oxidation pond, a feeding agent can be sprayed out from the spray head at the water outlet pipe after being mixed and reacted in the mounting frame, and wastewater can be pumped and sprayed to the water outlet pipe through the water pump, so that the wastewater can be better mixed with the agent, and the mounting frame can move up and down; the surrounding wastewater is disturbed, so that the flowability of the wastewater is accelerated, and the mixing of the wastewater and the medicament is further improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment device technology, and in particular to a novel treatment device for DMF production wastewater. Background Technology

[0002] DMF production wastewater originates from the production process of DMF and its derivatives (such as furazolidone and nitrofuran antibiotics). Due to the complex composition and high toxicity of DMF wastewater, it needs to be treated before discharge. Currently, oxidation can be used to treat DMF production wastewater. However, oxidation requires the addition of reagents in an oxidation tank or oxidation tower, which requires long-term stirring and high mechanical stirring requirements. Furthermore, during the oxidation process, the DMF production wastewater and reagents inside the oxidation tank may not react fully, affecting the oxidation efficiency. Utility Model Content

[0003] The main objective of this invention is to provide a novel treatment device for DMF production wastewater, which aims to solve the technical problem that the DMF production wastewater and reagents inside the oxidation tank are prone to insufficient reaction during the oxidation process, thus affecting the oxidation efficiency.

[0004] In order to achieve the above-mentioned utility model objectives, the first aspect of this utility model proposes a novel treatment device for DMF production wastewater, including an oxidation tank, wherein the oxidation tank is provided with several feeding mechanisms.

[0005] The feeding mechanism includes a mounting frame, a first mounting slot, a mixing frame, several first solenoid valves, a water outlet pipe, several nozzles, a second mounting slot, a sealing frame, and several water pumps. The first and second mounting slots are located on one side of the mounting frame, with the first mounting slot at the top of the second mounting slot. The mixing frame is fixedly mounted on the wall of the first mounting slot. Several first solenoid valves are fixedly mounted on one side of the mixing frame. The water outlet pipe is fixedly mounted at one end of the outlet of the first solenoid valve. Several nozzles are fixedly mounted on the outer wall of the water outlet pipe. The sealing frame is fixedly mounted on the wall of the second mounting slot. Several water pumps are fixedly mounted on the inner wall of the sealing frame.

[0006] Furthermore, the inlet and outlet ends of the water pump extend to the outside of both sides of the sealing frame.

[0007] Furthermore, a second solenoid valve is fixedly installed on both sides of the mixing frame, and a gas supply pipe is fixedly installed at one end of the inlet of the second solenoid valve.

[0008] Furthermore, a fixed frame is fixedly installed on one side of the mixing frame, and several mounting shafts are rotatably installed on the inner wall of the fixed frame, with two turntables fixedly installed on the outer wall of the mounting shafts.

[0009] Furthermore, a transmission belt is installed on the outer wall of the corresponding turntable on two adjacent mounting shafts.

[0010] Furthermore, a motor is fixedly installed on one side of the fixed frame, the output end of the motor extends into the interior of the fixed frame, and the output end of the motor is fixedly installed on one end of one of the mounting shafts.

[0011] Furthermore, one end of the mounting shaft extends into the interior of the mixing frame, and a stirring rod is fixedly mounted on the end of the mounting shaft that extends into the interior of the mixing frame.

[0012] Furthermore, several conveying pipes are fixedly installed on one side of the mixing frame.

[0013] Furthermore, the mounting frame has movable grooves on both sides of its top, sliding grooves on both sides of the movable groove walls, a rotating frame slidably mounted on the sliding groove walls, a connecting rod rotatably mounted on the inner wall of the rotating frame, and a connecting frame rotatably mounted on one end of the connecting rod.

[0014] Furthermore, a fixing frame is fixedly installed on the top of the inner wall of the oxidation tank, and a plurality of cylinders are fixedly installed on the top of the fixing frame, and the connecting frame is fixedly installed at the output end of the corresponding cylinder.

[0015] Beneficial effects:

[0016] 1. By setting up a vertically movable installation frame in the oxidation tank, the reagents can be fed into the installation frame for mixing and reaction, and then sprayed out from the nozzle at the outlet pipe. The wastewater is also pumped and sprayed to the outlet pipe, which allows the wastewater to mix better with the reagents. The vertical movement of the installation frame can also disturb the surrounding wastewater, accelerate the flow of the wastewater, and further increase the mixing of wastewater and reagents.

[0017] 2. The lifting and lowering of the corresponding mounting frame is controlled by a cylinder. During the mixing process, the output end of the cylinder connected to the connecting frame can extend and retract in an alternating pattern, causing the two ends of the mounting frame to shake, so that the medicine is mixed more thoroughly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a novel treatment device for DMF production wastewater according to an embodiment of this utility model;

[0019] Figure 2 This is a cross-sectional view of the installation frame of a novel treatment device for DMF production wastewater according to an embodiment of this utility model;

[0020] Figure 3 This is a cross-sectional view of the mixing frame of a novel treatment device for DMF production wastewater according to an embodiment of this utility model;

[0021] Figure 4This is an installation diagram of the installation frame of a novel treatment device for DMF production wastewater according to an embodiment of this utility model.

[0022] in:

[0023] 1-Oxidation tank; 2-Mounting frame; 3-First mounting slot; 4-Second mounting slot; 5-Sealing frame; 6-Water pump; 7-Mixing frame; 8-Transport pipe; 9-First solenoid valve; 10-Outlet pipe; 11-Nozzle; 12-Fixing frame; 13-Mounting shaft; 14-Turntable; 15-Transmission belt; 16-Agitator rod; 17-Motor; 18-Second solenoid valve; 19-Gas supply pipe; 20-Moving trough; 21-Slide chute; 22-Rotating frame; 23-Connecting rod; 24-Connecting frame; 26-Cylinder.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] Reference Figures 1-4 This utility model provides a novel treatment device for DMF production wastewater, including an oxidation tank 1. The oxidation tank 1 is equipped with several feeding mechanisms. The feeding mechanism includes an installation frame 2, a first installation groove 3, a mixing frame 7, several first solenoid valves 9, a water outlet pipe 10, several nozzles 11, a second installation groove 4, a sealing frame 5, and several water pumps 6. The first installation groove 3 and the second installation groove 4 are opened on one side of the installation frame 2. The first installation groove 3 is located at the top of the second installation groove 4. The mixing frame 7 is fixedly installed on the wall of the first installation groove 3. Several first solenoid valves 9 are fixedly installed on one side of the mixing frame 7. The water outlet pipe 10 is fixedly installed at one end of the outlet of the first solenoid valve 9. Several nozzles 11 are fixedly installed on the outer wall of the water outlet pipe 10. The sealing frame 5 is fixedly installed on the wall of the second installation groove 4. Several water pumps 6 are fixedly installed on the inner wall of the sealing frame 5.

[0030] The inlet and outlet of the water pump 6 extend to the outside of both sides of the sealing frame 5. The water pump 6 draws wastewater from the oxidation tank 1 and transports the wastewater to the outlet pipe 10.

[0031] A second solenoid valve 18 is fixedly installed on both sides of the mixing frame 7. A gas supply pipe 19 is fixedly installed at one end of the inlet of the second solenoid valve 18. The second solenoid valve 18 is used to control the opening and closing of the gas supply pipe 19. One end of the gas supply pipe 19 is connected to a gas tank, which provides high-pressure gas. When the second solenoid valve 18 is opened, the high-pressure gas enters the mixing frame 7 and squeezes the liquid in the mixing frame 7 to the nozzle 11 for spraying.

[0032] In this embodiment, a movable mounting frame 2 is installed in the oxidation tank 1. The reagents can be fed into the mounting frame 2 for mixing and reaction, and then sprayed out from the nozzle 11 at the outlet pipe 10. The wastewater is also pumped by the water pump 6 and sprayed to the outlet pipe 10, which can better mix the wastewater with the reagents. The movable mounting frame 2 can disturb the surrounding wastewater, accelerate the flow of the wastewater, and further increase the mixing of wastewater and reagents.

[0033] Optionally, the water outlet pipe 10 is opened and closed by the first solenoid valve 9.

[0034] In one embodiment, a fixed frame 12 is fixedly installed on one side of the mixing frame 7. Several mounting shafts 13 are rotatably installed on the inner wall of the fixed frame 12. Two turntables 14 are fixedly installed on the outer wall of the mounting shafts 13. A transmission belt 15 is installed on the outer wall of the corresponding turntables 14 on two adjacent mounting shafts 13. A motor 17 is fixedly installed on one side of the fixed frame 12. The output end of the motor 17 extends into the interior of the fixed frame 12. The output end of the motor 17 is fixedly installed on one end of one of the mounting shafts 13. One end of the mounting shaft 13 extends into the interior of the mixing frame 7. A stirring rod 16 is fixedly installed on the end of the mounting shaft 13 that extends into the interior of the mixing frame 7.

[0035] In this example, a waterproof motor can be selected for motor 17.

[0036] In this example, the motor 17 starts and drives one of the mounting shafts 13 to rotate. Through the transmission belt 15, the other mounting shafts 13 rotate synchronously, driving the stirring rod 16 to rotate and stir and mix the medicine in the mixing frame 7.

[0037] In one embodiment, a plurality of conveying pipes 8 are fixedly installed on one side of the mixing frame 7.

[0038] In this example, one end of the delivery pipe 8 is connected to an external pump body. When the pump body is activated, the agent is delivered to the inside of the mixing frame 7 through the delivery pipe 8.

[0039] In this example, during the oxidation process, hydroxyl radicals ·OH are generated by the reaction of H2O2 with Fe²⁺, which can efficiently degrade nitrobenzenes and nitrophenols.

[0040] In this example, one of the delivery pipes 8 delivers H2O2, and the other delivery pipe 8 delivers an aqueous solution of ferrous sulfate or ferrous chloride.

[0041] In this example, Fe²⁺ is mainly added in the form of an aqueous solution of ferrous sulfate or ferrous chloride during the oxidation process.

[0042] In one embodiment, the top two sides of the mounting frame 2 are provided with movable grooves 20, the sides of the movable grooves 20 are provided with sliding grooves 21, the sliding grooves 21 are slidably mounted with rotating frames 22, the inner wall of the rotating frames 22 is rotatably mounted with connecting rods 23, one end of the connecting rods 23 is rotatably mounted with connecting frames 24, the top of the inner wall of the oxidation tank 1 is fixedly mounted with a fixed frame, the top of the fixed frame is fixedly mounted with a plurality of cylinders 26, and the connecting frames 24 are fixedly mounted at the output end of the corresponding cylinders 26.

[0043] In this example, the lifting and lowering of the corresponding mounting frame 2 is controlled by the cylinder 26. During the mixing process, the output end of the cylinder 26 connected to the connecting frame 24 can extend and retract in an alternating pattern, causing the two ends of the mounting frame 2 to shake, so that the medicine is mixed more thoroughly.

[0044] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A novel treatment device for DMF production wastewater, characterized in that, It includes an oxidation tank (1), and the oxidation tank (1) is provided with several feeding mechanisms; The feeding mechanism includes a mounting frame (2), a first mounting groove (3), a mixing frame (7), several first solenoid valves (9), a water outlet pipe (10), several nozzles (11), a second mounting groove (4), a sealing frame (5), and several water pumps (6). The first mounting groove (3) and the second mounting groove (4) are opened on one side of the mounting frame (2). The first mounting groove (3) is located at the top of the second mounting groove (4). The mixing frame (7) is fixedly installed on the wall of the first mounting groove (3). Several first solenoid valves (9) are fixedly installed on one side of the mixing frame (7). The water outlet pipe (10) is fixedly installed at one end of the outlet of the first solenoid valve (9). Several nozzles (11) are fixedly installed on the outer wall of the water outlet pipe (10). The sealing frame (5) is fixedly installed on the wall of the second mounting groove (4). Several water pumps (6) are fixedly installed on the inner wall of the sealing frame (5).

2. The novel treatment device for DMF production wastewater according to claim 1, characterized in that, The inlet and outlet ends of the water pump (6) extend to the outside of both sides of the sealing frame (5).

3. A novel treatment device for DMF production wastewater according to claim 1, characterized in that, The mixing frame (7) is fixedly installed with a second solenoid valve (18) on both sides, and a gas supply pipe (19) is fixedly installed at one end of the inlet of the second solenoid valve (18).

4. A novel treatment device for DMF production wastewater according to claim 1, characterized in that, A fixed frame (12) is fixedly installed on one side of the mixing frame (7). Several mounting shafts (13) are rotatably installed on the inner wall of the fixed frame (12). Two turntables (14) are fixedly installed on the outer wall of the mounting shafts (13).

5. A novel treatment device for DMF production wastewater according to claim 4, characterized in that, A drive belt (15) is installed on the outer wall of the corresponding turntable (14) on two adjacent mounting shafts (13).

6. A novel treatment device for DMF production wastewater according to claim 4, characterized in that, A motor (17) is fixedly installed on one side of the fixed frame (12). The output end of the motor (17) extends into the interior of the fixed frame (12). The output end of the motor (17) is fixedly installed on one end of one of the mounting shafts (13).

7. A novel treatment device for DMF production wastewater according to claim 4, characterized in that, One end of the mounting shaft (13) extends into the interior of the mixing frame (7), and a stirring rod (16) is fixedly installed at the end of the mounting shaft (13) extending into the interior of the mixing frame (7).

8. A novel treatment device for DMF production wastewater according to claim 1, characterized in that, Several conveying pipes (8) are fixedly installed on one side of the mixing frame (7).

9. A novel treatment device for DMF production wastewater according to claim 1, characterized in that, The mounting frame (2) has movable grooves (20) on both sides of the top. The movable grooves (20) have sliding grooves (21) on both sides of the groove wall. A rotating frame (22) is slidably installed on the groove wall of the sliding groove (21). A connecting rod (23) is rotatably installed on the inner wall of the rotating frame (22). A connecting frame (24) is rotatably installed on one end of the connecting rod (23).

10. A novel treatment device for DMF production wastewater according to claim 9, characterized in that, A fixed frame is fixedly installed on the top of the inner wall of the oxidation tank (1), and a number of cylinders (26) are fixedly installed on the top of the fixed frame. The connecting frame (24) is fixedly installed at the output end of the corresponding cylinder (26).

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