Environment-friendly wastewater treatment device for flame retardant production

Abstract

The invention relates to the technical field of flame retardant production wastewater treatment, in particular to a flame retardant production wastewater environment-friendly treatment device which is integrated through collaborative design of a driving assembly, a discharging assembly, a stirring assembly and a purifying assembly. According to the flame retardant wastewater treatment device, full-process automatic treatment of the flame retardant wastewater from flocculent precipitation, oxidative degradation to deep filtration is achieved in the flame retardant wastewater treatment device, the treatment efficiency and the energy-saving effect are greatly improved, the driving assembly comprises a first mounting frame and a driving module, and a fixed rod, a first movable cylinder and a movable rod are arranged on the lower side of the first mounting frame. Through collaborative design of the driving assembly, the discharging assembly, the stirring assembly and the purifying assembly, the integrated device is arranged, full-process automatic treatment of flame retardant wastewater from flocculent precipitation, oxidative degradation to deep filtration is realized in the integrated device, and the treatment efficiency and the energy-saving effect are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology for flame retardant production, and in particular to an environmentally friendly wastewater treatment device for flame retardant production. Background Technology

[0002] The production of flame retardants generates high-concentration wastewater with complex composition and containing a large amount of recalcitrant organic pollutants. Traditional wastewater treatment methods often employ multiple sets of equipment connected in series to sequentially perform flocculation sedimentation, chemical oxidation, and deep filtration. This segmented treatment method suffers from problems such as large equipment footprint, long process flow, high energy consumption, and the potential for secondary pollution due to material transfer between different processes.

[0003] Especially in the chemical oxidation stage, the mixing efficiency, reaction rate, and oxidation cycle of Fenton's reagent and wastewater have stringent requirements on stirring conditions. Traditional stirrers are difficult to adjust flexibly according to the reaction process, leading to incomplete oxidation or energy waste. Furthermore, the automation level of processes such as sludge discharge from flocculation and the connection between oxidation and filtration is low, relying on manual operation and resulting in low efficiency. Therefore, there is an urgent need for a highly integrated and automated wastewater treatment device that can efficiently complete multi-stage treatment within a single core unit and intelligently adjust operating conditions to adapt to the needs of different treatment stages. We propose an environmentally friendly wastewater treatment device for flame retardant production. Summary of the Invention

[0004] In order to overcome the technical problems existing in the prior art, the present invention provides an environmentally friendly wastewater treatment device for flame retardant production.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a processing tank, wherein the processing tank is internally provided with a drive component, a discharge component, a stirring component and a purification component; The drive assembly includes a first mounting bracket and a drive module. A fixed rod, a first movable cylinder, and a movable rod are provided on the lower side of the first mounting bracket. A first battery module and a second battery module are fixedly installed inside the fixed rod and the movable rod, respectively. A first gear, a gear ring, a second gear, a constraint rod, a first electric push rod, and a damping block are provided between the fixed rod, the first movable cylinder, and the movable rod. A first connecting rod and a second connecting rod are provided between the first battery module and the second battery module. The discharge assembly includes a discharge pipe, and the discharge pipe is internally provided with a connecting pipe, a second mounting bracket, a block, a mounting rod and a first support cylinder. The side of the processing barrel is provided with discharge troughs at equal intervals, and the periphery of the discharge troughs is provided with a block plate, a trigger rod and a second support cylinder. The stirring assembly includes a fixed frame, a second electric push rod, and a stirring rod. A trigger block is fixedly installed at the output end of the second electric push rod. An electrode rod is fixedly installed through the side of the first movable cylinder, and a connecting rod is fixedly installed through the inside of the movable rod. The purification assembly includes a purification frame, a permeable membrane filter element, and an activated carbon filter element. A flow guide groove is provided on the side of the purification frame, and a second movable cylinder and a cleaning plate are provided on the side of the purification frame.

[0006] Furthermore, the first mounting bracket is positioned on the upper side of the processing tank, the drive module is fixedly positioned on both sides of the first mounting bracket, the fixed rod is fixedly installed at the lower center of the first mounting bracket, the movable rod is positioned inside the processing tank at a lower position, the first movable cylinder is movably sleeved on the side of the movable rod, the first movable cylinder and the movable rod are positioned below the fixed rod, and the upper end of the first battery module extends through the first mounting bracket.

[0007] Furthermore, the first gear is located on the lower side of the fixed rod and on the upper side of the movable rod. The gear ring is fixedly installed inside the first movable cylinder. The second gear is equidistantly meshed between the first gear and the gear ring. The constraint rod is fixedly installed on the upper side of the movable rod and rotatably located at the center of the second gear. The first connecting rod is fixedly installed on the lower side of the fixed rod, and the spline of the first gear is sleeved on the side of the first connecting rod. The upper end of the first connecting rod passes through the fixed rod and is electrically connected to the first battery module. The second connecting rod is fixedly installed on the upper side of the second battery module and passes through the movable rod and is electrically connected to the rotating contact of the first connecting rod. The first electric push rod is fixedly installed inside the processing barrel, and the damping block is fixedly installed at the output end of the first electric push rod.

[0008] Furthermore, the discharge pipes are equidistantly arranged at the center of the side of the processing barrel, and both ends of the discharge pipes penetrate the processing barrel and are positioned in the upper and lower cavities. The connecting pipe is fixedly arranged through the side of the discharge pipe. The second mounting bracket is fixedly installed on the inner side of the discharge pipe. The mounting rod is fixedly installed on the inner side of the block and extends out through the center of the second mounting bracket. The first support cylinder is fixedly connected between the side of the second mounting bracket and the inner side of the block and is movably sleeved on the side of the mounting rod.

[0009] Furthermore, the discharge trough is located between the two cavities of the processing barrel. The bottom wall of the discharge trough is provided with filter holes at equal intervals. The slot and the movable cavity are opened on the top wall of the discharge trough. The blocking plate is snapped into the inside of the slot. The trigger rod is movably installed inside the movable cavity and the lower side of the trigger rod is fixedly installed on the side of the blocking plate. The upper end of the trigger rod extends into the inside of the processing barrel. The second support cylinder is fixedly connected between the side of the trigger rod and the bottom wall of the movable cavity and is movably sleeved on the side of the trigger rod.

[0010] Furthermore, the fixing frame is fixedly installed at equal intervals on the lower side of the fixing rod and the movable rod, and the second electric push rod is fixedly installed inside the fixing frame and is electrically connected to the contacts of the first battery module and the second battery module respectively.

[0011] Furthermore, the stirring rods are fixedly installed at equal intervals on the side of the first movable cylinder, the connecting rods are electrically connected to the contacts of the second battery module, and the connecting rods can make contact with the electrode rods for electrical communication.

[0012] Furthermore, the purification rack is fixedly installed at the center of the bottom side inside the treatment tank and is located below the movable rod. The permeation membrane filter element is threadedly installed on the inner side of the purification rack, the activated carbon filter element is fixedly installed on the lower side of the permeation membrane filter element, the second movable cylinder is attached to the inner side of the treatment tank, and the cleaning plate is fixedly installed at equal intervals on the inner side of the second movable cylinder and is attached to the side of the purification rack.

[0013] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. This invention integrates a drive component, a discharge component, a stirring component, and a purification component into a single device. This integrated device achieves fully automated treatment of flame retardant wastewater from flocculation and sedimentation to oxidation degradation and deep filtration, greatly improving treatment efficiency and energy saving.

[0014] 2. By setting up a drive component, a discharge component, and a stirring component, this invention can integrate flocculation, oxidation, and filtration processes into a single treatment tank. The drive component drives the stirring and discharge components, achieving automatic discharge of flocculants, precise addition and mixing of supernatant and oxidant, and automatic filtration of oxidized wastewater. The entire process requires no intermediate transfer, reducing the footprint and risk of secondary pollution, and significantly improving treatment efficiency and system reliability.

[0015] 3. This invention achieves intelligent switching of stirring modes by setting up a driving component and a stirring component. Specifically, through a unique driving component composed of a first electric actuator, a planetary gear set, etc., two different stirring speeds can be output under a single power source input. During the oxidation stage, it can be switched as needed to high-speed stirring of the trigger block driven by the movable rod to enhance the mixing of Fenton reagent and wastewater, or to low-speed stirring of the stirring rod driven by the first movable cylinder to maintain a mild reaction environment. Intelligent speed regulation makes the oxidation reaction more complete and thorough, while realizing on-demand energy allocation and achieving the goal of energy saving and consumption reduction.

[0016] 4. This invention, by setting a trigger block, mounting rod, and trigger rod and its surrounding components, utilizes a radially adjustable trigger block to precisely trigger the mounting rod or trigger rod in the discharge assembly during rotation, thereby controlling the transfer of the upper clear liquid and the discharge of flocculated precipitates. The mechanical triggering structure ensures simplicity and reliability. At the same time, the discharge pipe integrates the function of conveying Fenton's reagent, realizing the synchronous addition of liquid agents and improving the effect of oxidative degradation.

[0017] 5. This invention, by setting up electrode rods and connecting rods and their surrounding components, and by using the electrode rods and connecting rods in the stirring assembly to generate intermittent current through the relative rotation between the components, electrolytically oxidizes wastewater, forming a synergistic effect with Fenton oxidation, and further enhancing the ability to decompose recalcitrant organic matter.

[0018] 6. By setting up a second movable cylinder and its surrounding components, the rotation of the second movable cylinder controls the opening and closing of the guide channel, thereby achieving isolation and connection between the oxidation reaction tank and the filtration unit, ensuring sufficient reaction time. The filtration core adopts a combination of threaded permeable membrane filter and activated carbon filter, which not only provides multi-stage deep filtration, but also facilitates regular disassembly, replacement or cleaning, greatly reducing the complexity and cost of later maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a cross-sectional structural diagram of the connecting rod of the present invention; Figure 5 This is an exploded view of the peripheral structure of the gear ring of the present invention; Figure 6 For the present invention Figure 2 A magnified structural diagram at point A; Figure 7 This is a schematic diagram of the peripheral structure of the battery module of the present invention; Figure 8 This is an exploded view of the peripheral structure of the discharge pipe of the present invention; Figure 9 For the present invention Figure 2 A magnified structural diagram at point B; Figure 10 This is a partial structural schematic diagram of the fixing frame of the present invention; Figure 11 This is a partial structural schematic diagram of the electrode rod of the present invention; Figure 12 For the present invention Figure 2 A magnified structural diagram at point C; Figure 13 This is a partial structural schematic diagram of the movable cylinder of the present invention; Figure 14 This is a partial structural diagram of the purification rack of the present invention.

[0020] The components include: 1. Processing tank; 2. Drive assembly; 21. First mounting bracket; 211. Drive module; 22. Fixing rod; 221. First battery module; 222. First gear; 223. First connecting rod; 23. First movable cylinder; 231. Gear ring; 24. Movable rod; 241. Second battery module; 242. Second gear; 243. Constraint rod; 244. Second connecting rod; 25. First electric actuator; 251. Damping block; 3. Discharge assembly; 31. Discharge pipe; 311. Connecting pipe; 32. Second mounting bracket; 321. Plug 322. Installation rod; 323. First support cylinder; 33. Discharge trough; 331. Filter hole; 34. Slot; 341. Block plate; 35. Movable cavity; 351. Trigger rod; 352. Second support cylinder; 4. Stirring assembly; 41. Fixing frame; 42. Second electric push rod; 43. Trigger block; 44. Stirring rod; 45. Electrode rod; 46. Connecting rod; 5. Purification assembly; 51. Purification frame; 52. Guide channel; 53. Permeation membrane filter element; 54. Activated carbon filter element; 55. Second movable cylinder; 56. Cleaning plate; 57. Matching groove. Detailed Implementation

[0021] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0022] Example: Figure 1 and Figure 2 As shown, an environmentally friendly wastewater treatment device for flame retardant production includes a treatment tank 1, which is a cylindrical tank with two cavities inside. A drive assembly 2 is installed through the center of the treatment tank 1, a discharge assembly 3 is installed at the center of the inside of the treatment tank 1, a stirring assembly 4 is installed around the drive assembly 2 inside the treatment tank 1, and a purification assembly 5 is installed below the drive assembly 2 inside the treatment tank 1.

[0023] The configured drive component 2 can perform dual-zone drive, enabling different drive speeds in different zones; like Figures 2 to 7As shown, the drive assembly 2 includes a first mounting frame 21 and a drive module 211. The first mounting frame 21 is located on the upper side of the processing tank 1. The drive module 211 is fixedly located on both sides of the first mounting frame 21. The drive module 211 consists of a motor and rollers, and a constraint roller is provided on its side. By being constrained to rotate on the upper side of the processing tank 1 by the drive module 211, the first mounting frame 21 can be driven to rotate concentrically and stably on the upper side of the processing tank 1. A fixed rod 22, a first movable cylinder 23, and a movable rod 24 penetrating the processing tank 1 are provided on the lower side of the first mounting frame 21. The fixed rod 22 is located inside the processing tank 1 at an upper position and is fixedly installed on the first mounting frame. At the lower center of the 21st mounting bracket, the movable rod 24 is located inside the processing tank 1, near the bottom. The first movable cylinder 23 is movably sleeved on the side of the movable rod 24. The first movable cylinder 23 and the movable rod 24 are located below the fixed rod 22. The fixed rod 22 is a cylindrical rod, and the movable rod 24 is a "T"-shaped cylindrical rod. The first movable cylinder 23 is a hollow cylindrical cylinder. A first battery module 221 is fixedly installed inside the fixed rod 22, and the upper end of the first battery module 221 extends through the first mounting bracket 21. A second battery module 241 is fixedly installed inside the movable rod 24. A first gear 222 is located at the lower center of the fixed rod 22. Gear 222 is positioned on the upper side of movable rod 24. A gear ring 231 is fixedly installed on the inner side of the first movable cylinder 23, corresponding to the position of the first gear 222. A second gear 242 is circumferentially arrayed and equidistantly meshed between the first gear 222 and the gear ring 231. A constraint rod 243 is rotatably positioned at the center of the second gear 242 and is fixedly installed on the upper side of movable rod 24. The first gear 222, gear ring 231, and second gear 242 form a planetary gear assembly. A first connecting rod 223 is fixedly installed on the lower side of fixed rod 22, and the first gear 222 is splinedly sleeved onto the side of the first connecting rod 223. The upper end of the 23 is electrically connected to the first battery module 221 through the fixed rod 22. The second connecting rod 244 is fixedly installed on the upper side of the second battery module 241 and is electrically connected to the rotating contact of the first connecting rod 223 through the movable rod 24. The first electric push rod 25 is provided on the side of the first movable cylinder 23 and is fixedly installed in the center of the inside of the processing tank 1. The first electric push rod 25 is connected to the power supply through the wire. The damping block 251 is fixedly installed at the output end of the first electric push rod 25 and is elastically attached to the side of the first movable cylinder 23. The damping block 251 is a round block of elastic wear-resistant material.Specifically, by default, the first electric actuator 25 pushes the damping block 251 to adhere to the side of the first movable cylinder 23, providing damping and fixing for the first movable cylinder 23. At this time, the first mounting bracket 21 is driven to rotate by the drive module 211, and the fixing rod 22 is synchronously driven to rotate by the first mounting bracket 21, causing the first connecting rod 223 to rotate with the fixing rod 22. The first gear 222 is then constrained to rotate by the spline of the first connecting rod 223. At this time, the first movable cylinder 23 constrains the gear ring 231 to remain stationary, and the second gear 242 meshes with the first gear 222 and the gear ring 231. The second gear 242 can then revolve as a whole inside the gear ring 231. The second gear 242 can drive the movable rod 24 to rotate through the constraint rod 243, thus enabling speed change. Accelerate stirring; additionally, when the first electric push rod 25 pulls the damping block 251 away from the side of the first movable cylinder 23, the rotation speed is low due to the damping of the movable rod 24 and its connected components. At this time, the rotation of the first gear 222 will drive the second gear 242 to rotate mainly on the constraint rod 243. The rotation of the second gear 242 will drive the meshing gear ring 231 to rotate, thereby driving the first movable cylinder 23 to revolve. At this time, the stirring speed can be changed to slow down; through the connection and cooperation of the first connecting rod 223 and the second connecting rod 244, the first battery module 221 and the second battery module 241 can form an integrated power supply combination, directly supplementing the power supply to subsequent components, reducing the connection circuit settings between electronic components.

[0024] The set discharge component 3 can realize the internal partitioning of the processing tank 1, the flow of materials between the zones, and the centralized discharge of sediments. like Figure 2 , Figure 3 and Figures 7 to 10As shown, the discharge assembly 3 includes a discharge pipe 31, which is circumferentially arrayed and equidistantly arranged at the center of the side of the treatment tank 1. Both ends of the discharge pipe 31 penetrate the treatment tank 1 to its upper and lower cavities. The discharge pipe 31 is a C-shaped circular pipe. A connecting pipe 311 is fixedly installed through the side of the discharge pipe 31, connecting to the liquid supply point to supply Fenton oxidation solution (ferrous ions react with hydrogen peroxide to produce hydroxyl radicals with strong oxidizing power). A second mounting bracket 32 ​​is fixedly installed on the upper inner side of the discharge pipe 31. The second mounting bracket 32 ​​is a circular bracket with a fan-shaped groove on its side. A blocking block 321 is attached to the side of the second mounting bracket 32. The blocking block 321 is a circular block with a hollowed-out side, which can seal the fan-shaped groove on the side of the second mounting bracket 32. An installation rod 322 is fixedly installed on the inner side and extends out from the center of the second mounting frame 32. The installation rod 322 is a cylindrical rod with a tapered side. A first support cylinder 323 is fixedly connected between the side of the second mounting frame 32 and the inner side of the block 321, and the first support cylinder 323 is movably sleeved on the side of the installation rod 322. The first support cylinder 323 is a corrugated cylinder made of elastic material. Specifically, the installation rod 322 can be triggered by subsequent components to squeeze the installation rod 322, causing the installation rod 322 to pull the first support cylinder 323 to deform away from the side of the second mounting frame 32. The wastewater inside can then flow from the second mounting frame 32 into the discharge pipe 31 and flow through the discharge pipe 31 to the lower cavity inside the treatment tank 1. The synchronous connecting pipe 311 can transport Fenton oxidation solution to oxidize and degrade the pollutants in the wastewater. The processing tank 1 has equidistantly arranged discharge troughs 33 on its side in a circular array, with the discharge troughs 33 and discharge pipes 31 staggered. The discharge troughs 33 are trapezoidal and located between two cavities in the processing tank 1. Filter holes 331 penetrating the processing tank 1 are equidistantly arranged on the bottom wall of the discharge troughs 33. Grooves 34 penetrating the processing tank 1 are symmetrically arranged on the top wall of the discharge troughs 33. A blocking plate 341, a double-protruding rectangular plate, is fitted inside the grooves 34. A movable cavity 35 penetrating the processing tank 1 is located on the top wall of the discharge troughs 33 between the grooves 34. The movable cavity 35 is a cylindrical cavity with a cross-shaped cross section. A trigger rod 351 is movably installed inside the movable cavity 35, with its lower side fixedly mounted on the side of the blocking plate 341. The rod 351 is a cross-shaped cylindrical rod with a tapered upper side. The upper end of the trigger rod 351 extends into the interior of the treatment tank 1. A second support cylinder 352 is fixedly connected between the side of the trigger rod 351 and the bottom wall of the movable cavity 35, and the second support cylinder 352 is movably sleeved on the side of the trigger rod 351. The second support cylinder 352 is a corrugated cylinder made of elastic material. Specifically, when the subsequent components squeeze the trigger rod 351, the trigger rod 351 squeezes the second support cylinder 352 and deforms. The trigger rod 351 pushes the slot 34 to slide out of the block plate 341 at the same time. The accumulated flocculent material in the upper cavity of the treatment tank 1 can flow into the discharge trough 33 with the wastewater. The wastewater filtered through the filter holes 331 flows into the lower cavity inside the treatment tank 1, and the flocculent material can be discharged from the discharge trough 33 for centralized collection.

[0025] The stirring component 4 can adjust the centrifugal force of stirring in different areas inside the processing tank 1, and can be used in conjunction with other components; like Figure 2 , Figure 3 , Figure 7 and Figures 9 to 12 As shown, the stirring assembly 4 includes a fixed frame 41, which is equidistantly and circumferentially fixedly installed on the lower side of the fixed rod 22 and the movable rod 24. A second electric push rod 42 is fixedly installed through the fixed frame 41 and is electrically connected to the contacts of the first battery module 221 and the second battery module 241 respectively. A trigger block 43 is fixedly installed at the output end of the second electric push rod 42. The trigger block 43 is an arc-shaped block. Specifically, the second electric push rod 42 can push and pull the trigger block 43 to adjust its position inside the processing tank 1. When the fixed frame 41 rotates with the fixed rod 22 and the movable rod 24, the trigger block 43 can stir the material inside the processing tank 1 with different centrifugal forces. The second electric push rod 42 on the side of the fixed rod 22 pushes the trigger block 43 to the position of the trigger rod 351 or the mounting rod 322, so that the trigger block 43 can perform a squeezing operation on the trigger rod 351 or the mounting rod 322. A stirring rod 44 is fixedly installed in an equidistant circular array on the side of the first movable cylinder 23. An electrode rod 45 is fixedly installed through the side of the first movable cylinder 23. The electrode rod 45 can be connected to electricity to release current, realizing the electrolytic oxidation treatment of wastewater. A receiving rod 46 is fixedly installed through the inside of the movable rod 24 and is electrically connected to the contacts of the second battery module 241. The receiving rod 46 can contact the electrode rod 45 for electrical connection. When the first movable cylinder 23 or the movable rod 24 rotates, the electrode rod 45 or the receiving rod 46 rotates independently, so that the electrode rod 45 and the receiving rod 46 make intermittent contact, realizing circuit connection. The electrode rod 45 intermittently releases current, which, together with Fenton oxidation solution, assists in the oxidation and degradation of macromolecular organic matter and toxic and harmful substances in the wastewater.

[0026] Centralized wastewater filtration can be performed using the purification component 5, and the components are easy to replace. like Figure 2 , Figure 3 and Figures 12 to 14 As shown, the purification assembly 5 includes a purification frame 51, which is fixedly installed inside the treatment tank 1 at the center of the bottom side and positioned below the movable rod 24. The purification frame 51 is a cylinder with a hollowed-out lower side and a protrusion on its inner side. A circumferential array of guide grooves 52 are evenly spaced on the side of the purification frame 51. A permeation membrane filter element 53 is threadedly installed on the inner side of the purification frame 51. The permeation membrane filter element 53 is a hollow cylinder. An activated carbon filter element 54 is fixedly installed on the lower side. The permeation membrane filter element 53 and the activated carbon filter element 54 penetrate the bottom side of the treatment tank 1. A second movable cylinder 55 is movably installed in the lower cavity inside the treatment tank 1 and is attached to the inner side of the treatment tank 1. The second movable cylinder 55 is an L-shaped annular cylinder. Cleaning plates 56 are fixedly installed in a circumferential array at equal intervals on the inner side of the second movable cylinder 55 and are attached to the side of the purification rack 51 and the guide groove 52. The arrangement is staggered, with equidistant mating grooves 57 on the side of the second movable cylinder 55 corresponding to the position of the discharge pipe 31. Specifically, during zoned processing, when the second electric push rod 42 on the side of the movable rod 24 pushes the trigger block 43 to fit against the inner side of the second movable cylinder 55, the movable rod 24 rotates, which drives the second movable cylinder 55 to rotate synchronously, so that the cleaning plate 56 blocks the guide groove 52 and the second movable cylinder 55 blocks the lower side of the discharge pipe 31. At this time, the lower cavity inside the processing tank 1 can perform a separate oxidation and degradation operation. After the oxidation and degradation is completed, the second movable cylinder 55 is driven to rotate so that the mating grooves 57 correspond to the discharge pipe 31, and the cleaning plate 56 and the guide groove 52 are staggered. At this time, the wastewater flows from the guide groove 52 into the inner side of the purification rack 51, and passes through the permeate membrane filter element 53 and the activated carbon filter element 54 for biofilm filtration to completely oxidize and decompose small molecule organic matter and remove the trace amounts of difficult-to-degrade COD and color remaining after biochemical treatment.

[0027] Working principle: In use: First, add materials. Discharge the wastewater with large solid particles removed into the upper cavity of the treatment tank 1. Then add coagulant and flocculant. Drive module 211 constrains and drives the first mounting frame 21 to rotate slowly. The second electric push rod 42 on the side of the fixed rod 22 pushes the trigger block 43 to a certain position, generating different agitation and centrifugation, which makes the wastewater, coagulant and flocculant mix and produce flocculent material that accumulates and settles on the upper side of the block plate 341. When a large amount of flocculent material accumulates, the second electric actuator 42 pulls the trigger block 43 to the position of the trigger rod 351. At this time, the fixed rod 22 rotates and drives the trigger block 43 to press the trigger rod 351 downward, so that the trigger rod 351 drives the block plate 341 to disengage from the inside of the block plate 341. The flocculent material and wastewater flow into the discharge trough 33. The filtered wastewater flows into the lower cavity of the treatment tank 1 through the filter hole 331. The remaining flocculent material flows out from the discharge trough 33 due to the impact of the wastewater and is collected and treated on its side. In the second step, the next stage of processing, the second electric push rod 42 on the side of the fixed rod 22 pushes the trigger block 43 to the position of the mounting rod 322. The trigger block 43 squeezes and pushes the mounting rod 322, so that the block block 321 moves away from the side of the second mounting frame 32. The settled wastewater flows from the second mounting frame 32 into the discharge pipe 31 to the lower cavity inside the treatment tank 1. At the same time, the connecting pipe 311 can discharge Fenton oxidation solution to flow together with the wastewater. At this time, the second movable cylinder 55 is driven to rotate by the trigger block 43 on the side of the movable rod 24, so that the matching groove 57 corresponds to the position of the discharge pipe 31 and the cleaning plate 56 in the staggered guide groove 52. After the wastewater flows into the lower cavity of the treatment tank 1, the movable rod 24 drives the second movable cylinder 55 to rotate, blocking the lower side of the discharge pipe 31. The cleaning plate 56 seals the guide channel 52. When the first electric actuator 25 pushes the damping block 251 to press against the side of the first movable cylinder 23, the first gear 222 rotates with the fixed rod 22, while the gear ring 231 remains fixed. The second gear 242 meshes with the gear ring 231 and the first gear 222, and the second gear 242 revolves as a whole. With the help of the constraint rod 243, the movable rod 24 can rotate. At this time, the movable rod 24 can cause the trigger block 43 to change speed and accelerate the agitation. Alternatively, the first electric push rod 25 pulls the damping block 251 away from the side of the first movable cylinder 23, and the movable rod 24 contacts the upper side of the first electric push rod 25 with a certain damping. At this time, the fixed rod 22 rotates and meshes with the second gear 242, which will drive the second gear 242 to rotate on the constraint rod 243. The rotation of the second gear 242 will drive the gear ring 231 that meshes with it to rotate, thereby driving the first movable cylinder 23 to revolve. At this time, the first movable cylinder 23 can make the stirring rod 44 to change speed and slow down the stirring. In this way, the stirring speed of the lower cavity inside the treatment tank 1 can be changed according to the oxidation cycle while the rotation speed of the fixed rod 22 remains unchanged. When the first movable cylinder 23 or the movable rod 24 rotates independently, the electrode rod 45 or the connecting rod 46 can rotate independently as well. The electrode rod 45 and the connecting rod 46 can intermittently connect and contact each other. The electrode rod 45 intermittently releases current to the wastewater, so that the wastewater can be electrolyzed and oxidized. When mixed with Fenton oxidation solution, the oxidation and degradation of the wastewater are further enhanced. The third step is filtration and discharge. After the degradation and oxidation are completed, the same operation as the second step is performed. The wastewater that has settled in the upper cavity of the treatment tank 1 is discharged to the lower cavity of the treatment tank 1. At the same time, the wastewater from degradation and oxidation flows from the guide channel 52 into the inner side of the purification rack 51. After being filtered and purified by the permeation membrane filter element 53 and the activated carbon filter element 54, it is discharged. The wastewater is then circulated in sequence for multi-stage environmental protection treatment.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An environmentally friendly wastewater treatment device for flame retardant production, comprising a treatment tank (1), wherein the interior of the treatment tank (1) is provided with a drive assembly (2), a discharge assembly (3), a stirring assembly (4) and a purification assembly (5). Its features are: The drive assembly (2) includes a first mounting bracket (21) and a drive module (211). A fixed rod (22), a first movable cylinder (23), and a movable rod (24) are provided on the lower side of the first mounting bracket (21). A first battery module (221) and a second battery module (241) are fixedly installed inside the fixed rod (22) and the movable rod (24), respectively. A first gear (222), a gear ring (231), a second gear (242), a constraint rod (243), a first electric push rod (25), and a damping block (251) are provided between the fixed rod (22), the first movable cylinder (23), and the movable rod (24). A first connecting rod (223) and a second connecting rod (244) are provided between the first battery module (221) and the second battery module (241). The discharge assembly (3) includes a discharge pipe (31), and the discharge pipe (31) is provided with a connecting pipe (311), a second mounting bracket (32), a block (321), a mounting rod (322) and a first support cylinder (323). The side of the processing barrel (1) is provided with discharge grooves (33) at equal intervals. The periphery of the discharge grooves (33) is provided with a block plate (341), a trigger rod (351) and a second support cylinder (352). The stirring assembly (4) includes a fixed frame (41), a second electric push rod (42) and a stirring rod (44). A trigger block (43) is fixedly installed at the output end of the second electric push rod (42). An electrode rod (45) is fixedly installed through the side of the first movable cylinder (23). A connecting rod (46) is fixedly installed through the inside of the movable rod (24). The purification component (5) includes a purification rack (51), a permeation membrane filter element (53) and an activated carbon filter element (54). A guide groove (52) is provided on the side of the purification rack (51), and a second movable cylinder (55) and a cleaning plate (56) are provided on the side of the purification rack (51).

2. The wastewater environmental protection treatment device for flame retardant production according to claim 1, characterized in that: The first mounting bracket (21) is located on the upper side of the processing tank (1), the drive module (211) is fixedly located on both sides of the first mounting bracket (21), the fixed rod (22) is fixedly installed on the lower center of the first mounting bracket (21), the movable rod (24) is located inside the processing tank (1) at a lower position, the first movable cylinder (23) is movably sleeved on the side of the movable rod (24), the first movable cylinder (23) and the movable rod (24) are located on the lower side of the fixed rod (22), and the upper end of the first battery module (221) extends through the first mounting bracket (21).

3. The wastewater environmental protection treatment device for flame retardant production according to claim 2, characterized in that: The first gear (222) is located on the lower side of the fixed rod (22) and on the upper side of the movable rod (24). The gear ring (231) is fixedly installed on the inner side of the first movable cylinder (23). The second gear (242) is equidistantly meshed between the first gear (222) and the gear ring (231). The constraint rod (243) is fixedly installed on the upper side of the movable rod (24) and rotatably positioned at the center of the second gear (242). The first connecting rod (223) is fixedly installed on the lower side of the fixed rod (22) and the first... The gear (222) is splined and sleeved on the side of the first connecting rod (223). The upper end of the first connecting rod (223) passes through the fixed rod (22) and is electrically connected to the first battery module (221). The second connecting rod (244) is fixedly installed on the upper side of the second battery module (241) and passes through the movable rod (24) and is electrically connected to the rotating contact of the first connecting rod (223). The first electric push rod (25) is fixedly installed inside the processing tank (1). The damping block (251) is fixedly installed at the output end of the first electric push rod (25).

4. The wastewater environmental protection treatment device for flame retardant production according to claim 3, characterized in that: The discharge pipe (31) is equidistantly arranged at the center of the side of the processing barrel (1), and both ends of the discharge pipe (31) pass through the processing barrel (1) and are placed in the upper and lower cavities. The connecting pipe (311) is fixedly arranged through the side of the discharge pipe (31). The second mounting bracket (32) is fixedly installed on the inner side of the discharge pipe (31). The mounting rod (322) is fixedly installed on the inner side of the block (321), and the mounting rod (322) extends out through the center of the second mounting bracket (32). The first support cylinder (323) is fixedly connected between the side of the second mounting bracket (32) and the inner side of the block (321), and is movably sleeved on the side of the mounting rod (322).

5. The wastewater environmental protection treatment device for flame retardant production according to claim 4, characterized in that: The discharge trough (33) is located between two cavities of the processing barrel (1). The bottom wall of the discharge trough (33) is provided with filter holes (331) at equal intervals. The slot (34) and the movable cavity (35) are opened on the top wall of the discharge trough (33). The blocking plate (341) is snapped into the inside of the slot (34). The trigger rod (351) is movably installed inside the movable cavity (35) and the lower side of the trigger rod (351) is fixedly installed on the side of the blocking plate (341). The upper end of the trigger rod (351) extends into the inside of the processing barrel (1). The second support cylinder (352) is fixedly connected between the side of the trigger rod (351) and the bottom wall of the movable cavity (35) and the second support cylinder (352) is movably sleeved on the side of the trigger rod (351).

6. The wastewater environmental protection treatment device for flame retardant production according to claim 5, characterized in that: The fixed frame (41) is fixedly installed at equal intervals on the lower side of the fixed rod (22) and the movable rod (24). The second electric push rod (42) is fixedly installed inside the fixed frame (41) and is electrically connected to the contacts of the first battery module (221) and the second battery module (241) respectively.

7. The wastewater environmental protection treatment device for flame retardant production according to claim 6, characterized in that: The stirring rod (44) is fixedly installed at equal intervals on the side of the first movable cylinder (23). The connecting rod (46) is electrically connected to the contact of the second battery module (241). The connecting rod (46) can be electrically connected to the electrode rod (45).

8. The wastewater environmental protection treatment device for flame retardant production according to claim 7, characterized in that: The purification rack (51) is fixedly installed inside the bottom center of the treatment tank (1) and is located below the movable rod (24). The permeation membrane filter element (53) is threadedly installed on the inner side of the purification rack (51). The activated carbon filter element (54) is fixedly installed on the lower side of the permeation membrane filter element (53). The second movable cylinder (55) is attached to the inner side of the treatment tank (1). The cleaning plate (56) is fixedly installed at equal intervals on the inner side of the second movable cylinder (55) and is attached to the side of the purification rack (51).

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