A device for treating wastewater from the production of dicyclanil

Abstract

The utility model relates to wastewater treatment device field discloses a wastewater treatment device for cyclozinc ketone production, including two big function areas of pretreatment cabin and modularization treatment cabin. The horizontal shaft multistage stirring system is equipped in the pretreatment cabin, realizes the fast mixing and directional delivery of reagent and wastewater through the synergies of turbine type stirrer and propelling type stirrer, the drawer type MBR membrane module and activated carbon module of guide rail connection are equipped in modularization treatment cabin, and quick -mounting joint is used to realize quick connection and sealing between each module. The utility model through the organic combination of multistage stirring and modularization design, effectively solved the technical problems such as mixing not enough, inconvenient maintenance etc. in cyclozinc ketone wastewater treatment, has the advantages such as high processing efficiency, convenient maintenance, continuous operation etc., significantly promoted the practicability and economy of equipment.

Description

Technical Field

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

[0002] Cycloazine, as a broad-spectrum herbicide, generates high-concentration organic wastewater with complex composition and strong biotoxicity during its production process. This wastewater contains recalcitrant heterocyclic compounds and chemical intermediates. If discharged directly without proper treatment, it will cause serious harm to the aquatic environment and ecosystem.

[0003] Currently, the treatment of wastewater from cycloazinone production typically employs a process route of "pretreatment + biochemical treatment + advanced treatment". Pretreatment often involves the use of a fixed stirring device combined with the addition of chemical agents for oxidative decomposition, while subsequent treatment is completed through an integrated bioreactor and filtration and adsorption equipment.

[0004] However, existing technologies have the following significant drawbacks in practical applications: the stirring systems in the pretreatment stage are mostly single-type stirring systems, which are difficult to achieve both rapid mixing and uniform delivery at the same time, resulting in low mass transfer efficiency between reagents and wastewater and incomplete reactions; while biological treatment and advanced treatment units are usually fixed installation structures, and the replacement and maintenance of membrane modules and adsorption packing require a complete shutdown operation, which is not only cumbersome and time-consuming, but also seriously affects the continuity of production and treatment efficiency, and increases operating costs. Utility Model Content

[0005] This invention provides a wastewater treatment device for the production of cycloazinone, which solves the problems of insufficient reagent mixing and low treatment efficiency in the prior art.

[0006] The technical solution adopted by this utility model to solve its technical problem is a wastewater treatment device for the production of cycloazinone, comprising: Pre-treatment compartment and modular processing compartment; The pretreatment chamber is a rectangular chamber welded from corrosion-resistant stainless steel plates, with a manhole and observation window at the top. A first water inlet is located on the side of the chamber near the bottom. Inside the chamber, a primary agitator and a secondary agitator are arranged horizontally side-by-side. The primary agitator uses a turbine agitator, located closer to the first water inlet, and its horizontal axis is driven by a drive unit located on the outer side wall of the chamber via a magnetic coupling. The secondary agitator uses a propeller agitator, located to the right of the primary agitator, closer to the first water outlet.

[0007] The modular treatment chamber is also rectangular, connected to the pretreatment chamber via a first outlet on a partition. Guide rails are installed within this chamber to support and guide the MBR membrane module and activated carbon module. The guide rails include chutes and rails; the chutes are fixedly mounted on the inner wall of the modular treatment chamber corresponding to the mounting surface of the first outlet, while the rails are fixedly mounted on the outer shell of the MBR membrane module. When the MBR membrane module is pushed into place along the guide rails, its inlet is sealed to the first outlet of the pretreatment chamber via an end-face sealing structure. The MBR membrane module is filled with membrane components, and its permeate is collected through a top outlet pipe. The activated carbon module is filled with granular activated carbon.

[0008] The outlet pipe of the MBR membrane module and the inlet pipe of the activated carbon module are connected by a quick-connect fitting. The quick-connect fitting includes a female connector, a male connector, a groove, and a locking switch. The female connector is located at the outlet pipe end of the MBR membrane module and has an internal cavity. The male connector is located at the inlet pipe end of the activated carbon module, with a tapered guide head at the front end and an annular groove in the middle, within which a sealing ring is embedded. A locking switch is located outside the cavity of the female connector.

[0009] The beneficial effects of this utility model are as follows: It provides a wastewater treatment device for the production of cycloazinone. Through the synergistic design of a multi-stage stirring system and a drawer-type modular inner core, it achieves efficient treatment and convenient maintenance of cycloazinone wastewater. The combination of turbine and propeller-type agitators ensures thorough mixing and directional conveying of the reagent and wastewater, significantly improving the pretreatment effect. The MBR membrane module and activated carbon module, connected by guide rails and quick-connect couplings, allow the replacement and maintenance of the core treatment unit to be completed quickly without affecting system operation, greatly reducing downtime and maintenance costs. The entire device has significant advantages such as compact structure, high treatment efficiency, simple operation and maintenance, and continuous and stable operation. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the wastewater treatment device for the production of cycloazinone according to this utility model; Figure 2 This is a schematic diagram of the pretreatment chamber of the wastewater treatment device for the production of cycloazinone according to this utility model; Figure 3 This is a schematic diagram of the internal structure of the pretreatment chamber of the wastewater treatment device for the production of cycloazinone according to this utility model; Figure 4 This is a schematic diagram of the modular treatment compartment of the wastewater treatment device for the production of cycloazinone according to this utility model; Figure 5 This is a schematic diagram of the quick-connect fitting for the wastewater treatment device used in the production of cycloazinone according to this utility model.

[0011] Explanation of reference numerals in the attached figures: 100. Pretreatment chamber; 101. Manhole; 102. Observation window; 103. First water inlet; 104. First water outlet; 105. Primary mixing unit; 106. Secondary mixing unit; 200. Modular treatment chamber; 210. MBR membrane module; 211. Second inlet; 220. Activated carbon module; 221. Drain outlet; 300, guide rail; 301, slide groove; 302, slide rail; 400. Quick-connect connector; 401. Female connector; 402. Male connector; 403. Groove; 404. Locking switch. Detailed Implementation

[0012] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0013] like Figures 1 to 5 As shown in the figure, this utility model provides a wastewater treatment device for the production of cycloazinone. It employs a multi-stage stirring system and a drawer-type modular core design to achieve efficient treatment and convenient maintenance of highly toxic and recalcitrant cycloazinone wastewater. The device mainly comprises two core parts: a pretreatment chamber 100 and a modular treatment chamber 200. The device is a horizontal box structure, internally divided into a pretreatment chamber 100 on the left and a modular treatment chamber 200 on the right by a vertical partition. The pretreatment chamber 100 is responsible for mixing the wastewater with the reagents and performing the initial reaction. Its effluent enters the modular treatment chamber 200 through the first outlet 104. The modular treatment chamber 200 contains two core treatment units arranged side-by-side: an MBR membrane module 210 and an activated carbon module 220. These units are connected in series and quickly disassembled via a quick-connect coupling 400. This overall layout makes the process flow compact and rational, achieving integration from chemical pretreatment to membrane biological treatment and then to deep adsorption. In one specific embodiment, the pretreatment chamber 100 is a rectangular chamber welded from corrosion-resistant stainless steel plates. A manhole 101 and an observation window 102 are provided on its top for facilitating the addition of reagents, observation of internal conditions, and maintenance. A first inlet 103 is located on the side of the chamber near the bottom for receiving the cycloazinone production wastewater to be treated. A primary stirring unit 105 and a secondary stirring unit 106 are arranged horizontally side-by-side inside the chamber. The primary stirring unit 105 employs a turbine-type agitator, positioned closer to the first inlet 103. Its horizontal axis is driven at high speed by a first drive device located on the outer sidewall of the chamber via a magnetic coupling. The disc and blade structure of this turbine-type agitator generates strong radial flow and shear force, instantly and powerfully mixing the wastewater and reagents to ensure rapid reaction initiation. The secondary stirring unit 106 employs a propeller-type agitator, located to the right of the primary stirring unit 105, closer to the first outlet 104, and is driven by an independent second drive device. Its large-pitch curved blades generate strong axial thrust during horizontal rotation, smoothly pushing the pre-mixed liquid towards the first outlet 104, effectively avoiding process short-circuiting and ensuring the necessary reaction residence time. This multi-stage stirring system design, addressing the complex composition and enhanced mass transfer requirements of cycloazinone wastewater, ensures efficient and complete pretreatment reactions through the division and synergy of "powerful mixing" and "directional pushing," creating stable influent conditions for subsequent advanced treatment units. In one specific embodiment, the modular treatment chamber 200 is also a rectangular chamber, which is connected to the pretreatment chamber 100 via a first outlet 104 on a partition. A guide rail 300 is installed inside the chamber to support and guide the MBR membrane module 210 and the activated carbon module 220. The guide rail 300 has two sets, including a chute 301 and a rail 302. The chute 301 is fixedly installed on the inner wall of the modular treatment chamber 200 corresponding to the mounting surface of the first outlet 104, while the rail 302 is fixedly installed on the outer shell of the MBR membrane module 210 corresponding to the mounting surface of the second inlet 211. When the MBR membrane module 210 is pushed into place along the guide rail 300, its second inlet 211 achieves a sealed connection with the first outlet 104 of the pretreatment chamber 100 through an end-face sealing structure, ensuring that all wastewater can enter the MBR membrane module 210. The MBR membrane module 210 is filled with a large number of hollow fiber membranes or flat sheet membrane components, which perform solid-liquid separation and biodegradation under negative pressure suction. The permeate is collected through the top outlet pipe. The activated carbon module 220 is filled with granular activated carbon for adsorption and removal of trace organic matter and decolorization. In one specific embodiment, to achieve modular connection, the outlet pipe of the MBR membrane module 210 and the inlet pipe of the activated carbon module 220 are connected via a quick-connect connector 400. The quick-connect connector 400 includes a female connector 401, a male connector 402, a groove 403, and a locking switch 404. The female connector 401 is located at the outlet pipe end of the MBR membrane module 210 and has a precisely machined cavity inside. The male connector 402 is located at the inlet pipe end of the activated carbon module 220, with a tapered guide head at its front end and an annular groove 403 in the middle, into which a fluororubber sealing ring is embedded. The locking switch 404 is located outside the cavity of the female connector 401. When connection is required, the activated carbon module 220 is pushed close to the MBR membrane module 210, and the tapered head of the male connector 402 is inserted into the cavity of the female connector 401 under guiding action. Pushing the locking switch 404 causes its internal mechanism (such as a steel ball or a claw) to slide into the annular groove 403 of the male connector 402, achieving mechanical locking and simultaneously compressing the sealing ring to form a reliable seal. For disassembly, simply reverse the operation of the locking switch 404 to easily separate the module. Finally, the purified water is discharged through the drain port 221 at the bottom of the activated carbon module 220. This design allows for cleaning and replacement of the MBR membrane module or regeneration of the activated carbon without disassembling any pipe bolts, minimizing maintenance time and costs. The working process of this utility model is as follows: The working process of a wastewater treatment device for the production of cycloazinone is divided into a pretreatment stage, a deep purification stage, and a drainage maintenance stage. Pretreatment stage: Wastewater from cycloazinone production enters the pretreatment chamber 100 through the first inlet 103 on the side, while the treatment agent is added through the inlet near the bottom of the primary mixing unit 105. The primary mixing unit 105 and the secondary mixing unit 106 are started. The turbine agitator of the primary mixing unit 105 rotates at high speed, generating strong shear force and turbulence, which makes the wastewater and the agent mix thoroughly and instantly. The propeller agitator of the secondary mixing unit 106 works synchronously, generating stable axial flow, which smoothly pushes the mixture towards the first outlet 104. Deep purification stage: Pretreated wastewater enters the modular treatment chamber 200 through the first outlet 104, and first enters the MBR membrane module 210 through the second inlet 211. The MBR membrane module 210 is precisely positioned along the guide rail 300, and its slide rail 302 cooperates with the slide groove 301 fixed on the chamber wall to ensure a sealed connection. The wastewater undergoes biodegradation and membrane filtration within the MBR membrane module 210, and pollutants are effectively intercepted. The purified water enters the collection pipe through the membrane assembly. Subsequently, the purified water enters the activated carbon module 220 through the quick-connect connector 400, where the conical guide head of the male connector 402 precisely matches the cavity of the female connector 401. The sealing ring in the groove 403 is pressed by the locking switch 404 to achieve a sealed connection, and the deep adsorption treatment of residual organic matter is completed within the activated carbon module 220. Drainage and maintenance phase: The final purified water is discharged through the drain outlet 221 at the bottom of the activated carbon module 220, meeting the standards. When maintenance is required, the manhole 101 at the top of the pretreatment chamber 100 can be opened for internal inspection. For the modular treatment chamber 200, the MBR membrane module 210 and the activated carbon module 220 can be separated simply by operating the locking switch of the quick-connect coupling 404. Each module can then be smoothly pulled out along the slide rail 302 via the guide rail 300 for cleaning or packing replacement. The above-disclosed embodiments are merely specific examples of this utility model. However, the embodiments of this utility model are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A wastewater treatment device for the production of cycloazinone, comprising a pretreatment chamber (100) and a modular treatment chamber (200), characterized in that: The pretreatment chamber (100) is horizontally arranged with a primary stirring unit (105) and a secondary stirring unit (106). A first water inlet (103) is provided on its side near the bottom, and a medicine inlet is provided near the bottom of the primary stirring unit (105). The pretreatment chamber (100) is connected to the modular treatment chamber (200) through a first outlet (104) on its right side; the modular treatment chamber (200) contains an MBR membrane module (210) and an activated carbon module (220) arranged side by side. The MBR membrane module (210) is connected to the inner wall of the modular treatment chamber (200) via a guide rail (300), and its outer shell is provided with a second inlet (211) that connects to the first outlet (104); the MBR membrane module (210) and the activated carbon module (220) are connected by a quick-connect coupling (400); the activated carbon module (210) is connected to the activated carbon module (220) via a quick-connect coupling (400); the activated carbon module (210) is connected to the activated carbon module (220) via a quick-connect coupling (400). The bottom of the activated carbon module (220) is provided with a drain outlet (221); the quick-connect connector (400) includes a female connector (401), a male connector (402), a groove (403) and a locking switch (404); the female connector (401) is located at the water outlet end of the MBR membrane module (210) and has a cavity inside; the male connector (402) is located at the water inlet end of the activated carbon module (220), its front end is a conical guide head, and a ring groove (403) is provided in the middle, with a sealing ring embedded in the groove (403); the locking switch (404) is provided outside the cavity of the female connector (401).

2. The wastewater treatment device for the production of cycloazinone according to claim 1, characterized in that: The pretreatment chamber (100) has a manhole (101) and an observation window (102) on its top.

3. The wastewater treatment device for the production of cycloazinone according to claim 1, characterized in that: The primary mixing unit (105) is a turbine mixer; the secondary mixing unit (106) is a propeller mixer, located to the right of the primary mixing unit (105).

4. The wastewater treatment device for the production of cycloazinone according to claim 3, characterized in that: The primary stirring unit (105) and the secondary stirring unit (106) are driven by a first driving device and a second driving device located on the outer side wall of the pretreatment chamber (100) respectively via a magnetic coupling.

5. A wastewater treatment device for the production of cycloazinone according to claim 1, characterized in that: The guide rail (300) has two sets, upper and lower, including a slide groove (301) fixedly installed on the inner wall of the modular treatment chamber (200) corresponding to the mounting surface of the first outlet (104), and a slide rail (302) fixedly installed on the outer shell of the MBR membrane module (210) corresponding to the mounting surface of the second inlet (211).

6. A wastewater treatment device for the production of cycloazinone according to claim 5, characterized in that: The second inlet (211) of the MBR membrane module (210) is sealed to the first outlet (104) of the pretreatment chamber (100) through an end face sealing structure.

7. A wastewater treatment device for the production of cycloazinone according to claim 1, characterized in that: The MBR membrane module (210) is filled with a hollow fiber membrane or a flat sheet membrane assembly.

8. A wastewater treatment device for the production of cycloazinone according to claim 1, characterized in that: The activated carbon module (220) is filled with granular activated carbon.

9. A wastewater treatment device for the production of cycloazinone according to claim 1, characterized in that: The internal mechanism of the locking switch (404) is a steel ball or a claw.

10. A wastewater treatment device for the production of cycloazinone according to claim 1, characterized in that: Both the pretreatment chamber (100) and the modular treatment chamber (200) are welded from corrosion-resistant stainless steel plates.

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