Wastewater treatment device for down feather processing

Abstract

The invention relates to the technical field of wastewater treatment, and discloses a wastewater treatment device for down feather processing, which comprises a treatment tank, a main shaft in vertical sliding connection with the top of the treatment tank, and a water separation disc, a middle hole is formed in the center of the water separation disc, the bottom of the main shaft is fixedly arranged in the middle hole through a bracket, and a lifting driving assembly is mounted on the treatment tank. The lifting driving assembly is used for driving the spindle to move vertically; the bottom of the main shaft is rotationally connected with a pesticide applying frame, and a rotating assembly is installed on the pesticide applying frame and used for driving the pesticide applying frame to rotate. The waste water is squeezed into the middle hole and flows upwards under the guiding effect of the guiding pipe, then the waste water flows upwards along the center of the treatment tank, the waste water passes through the middle hole to make contact with the flocculating agent, and the rotating medicine applying frame stirs the waste water and the flocculating agent so that the waste water and the flocculating agent can be mixed. The wastewater and the flocculating agent are fully mixed, so that the mixing time of the wastewater and the flocculating agent is shortened.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a wastewater treatment device for down processing. Background Art

[0002] Down processing generates large amounts of wastewater with complex composition, primarily containing down debris, grease, detergents, rinsing agents, suspended solids such as silt, and organic pollutants. To meet increasingly stringent environmental emission standards, this wastewater must be effectively treated.

[0003] Chemical coagulation / flocculation, due to its ability to efficiently remove suspended solids and some colloids / dissolved organic matter, has become an indispensable and critical step in the treatment process. Currently, in the flocculation stage of commonly used wastewater treatment plants, flocculants are typically added to the upper area of ​​the wastewater reaction tank or flocculation tank, and mechanical agitators are used to vigorously stir the wastewater in the tank to ensure sufficient contact between the flocculant and the wastewater.

[0004] However, this "upper-layer addition + mechanical agitation" model presents significant efficiency bottlenecks and performance drawbacks. First, because the flocculant is initially concentrated in the upper layer, it relies on agitation to diffuse it downward and around the surrounding layers. This process often takes a considerable amount of time to achieve a relatively uniform state, significantly reducing treatment efficiency and increasing equipment volume and energy requirements. Second, and more critically, this mixing method is prone to uneven mixing. The flow field created by agitation often contains dead spots or areas of uneven intensity distribution (such as the tank walls, bottom, and blind spots). This results in excessively high flocculant concentrations in some areas, leading to wasteful chemical and even the formation of difficult-to-settle micro-flocculations, while in other areas, the concentration is insufficient, preventing effective pollutant aggregation. This uneven mixing directly impacts the sufficiency of the flocculation reaction and the quality of the flocs. This leads to unstable subsequent sedimentation or flotation separation, fluctuating effluent quality, and high operating chemical consumption, making it a core issue that urgently needs to be optimized in the flocculation process of existing down wastewater treatment plants. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a down processing wastewater treatment device to solve the above-mentioned problems.

[0006] The present invention is implemented as follows: a wastewater treatment device for down processing includes a treatment tank, and also includes: a main shaft vertically slidably connected to the top of the treatment tank, and a water-isolating tray, a middle hole is provided at the center of the water-isolating tray, the bottom of the main shaft is fixed in the middle hole by a bracket, a lifting drive assembly is installed on the treatment tank, and the lifting drive assembly is used to drive the main shaft to move up and down; the bottom of the main shaft is rotatably connected to a drug application rack, and the drug application rack is installed with a rotating assembly, and the rotating assembly is used to drive the drug application rack to rotate; the main shaft is provided with a drug administration pipe along its axis, the drug administration pipe is connected to a feeding pump through a hose, a rotary joint is installed at the bottom of the drug administration pipe, a drug administration pipe is provided in the drug application rack, a one-way valve is installed at one end of the drug administration pipe, and the other end of the drug administration pipe is connected to the drug administration pipe through a rotary joint, and a guide tube is installed along the inner wall of the middle hole.

[0007] According to a further technical solution, the lifting drive assembly includes a telescopic member 1 fixed on the side wall of the processing tank, and the telescopic end of the telescopic member 1 is connected to the main shaft through a connecting plate.

[0008] A further technical solution is that the rotating assembly includes a rotating shaft rotatably connected inside the main shaft, the bottom of the rotating shaft passes through the main shaft and is fixed with a gear 1, an internal gear ring 1 is fixed in the applicator frame, and the internal gear ring 1 is engaged with gear 1, and a motor is fixed at the top of the main shaft, and the rotating end of the motor is connected to the top of the rotating shaft.

[0009] A further technical solution is that a lifting sleeve is slidably connected to the side wall of the main shaft along its length direction, a lifting frame is rotatably connected to the side wall of the lifting sleeve, a plurality of cross blades are evenly fixed on the lifting frame in a ring shape, a plurality of reflux grooves are evenly arranged on the water-blocking plate in a ring shape, the plurality of cross blades are matched one by one with the plurality of reflux grooves, and a moving component is provided on the main shaft for driving the lifting sleeve to move along the length direction of the main shaft.

[0010] A further technical solution is that the moving component includes a guide protrusion fixed on the inner wall of the lifting sleeve, and a guide groove is provided on the side wall of the main shaft along its length direction, which slides with the guide protrusion; a connecting shaft is fixed on the top of the guide protrusion, and the connecting shaft passes through the main shaft upward; a telescopic part 2 is fixed on the top of the main shaft, and the telescopic end of the telescopic part 2 is connected to the connecting shaft.

[0011] A further technical solution is that a transmission assembly is provided on the main shaft, and the transmission assembly includes a connecting hole provided on the top of the lifting frame, and a rotating sleeve rotatably connected to the side wall of the main shaft, the rotating sleeve is located above the lifting frame, and an inner gear ring 2 is embedded on the inner wall of the rotating sleeve, and a gear 2 engaged with the inner gear ring 2 is fixedly provided on the side wall of the connecting shaft, and a guide groove is provided at the bottom of the rotating sleeve, and a compression spring is fixed in the guide groove, and the end of the compression spring is connected to a connecting rod, and the connecting rod is slidably connected in the guide groove.

[0012] A further technical solution also includes a dosage adjustment system for adjusting the dosage at the end of the application pipeline in real time, including:

[0013] An information acquisition module is used to obtain the pollutant concentration and pH value of the wastewater in the guide pipe, the downward movement speed of the water isolation plate, and the wastewater temperature;

[0014] The wastewater status evaluation module builds a wastewater status evaluation model based on pollutant concentration, pH value and wastewater temperature and outputs the wastewater status evaluation coefficient;

[0015] The wastewater-velocity matching module builds a wastewater-velocity matching model based on the downward movement speed and the wastewater state evaluation coefficient and outputs the wastewater-velocity matching coefficient;

[0016] The dosage adjustment module constructs a dosage adjustment model based on the wastewater-velocity matching coefficient and the current dosage, outputs the target dosage, and adjusts the current dosage to the target dosage.

[0017] A further technical solution is that the dosage adjustment model is:

[0018]

[0019] in, is the target dosage, is the current dosage, To adjust the gain, is the wastewater-velocity matching coefficient, It is the maximum dosing capacity of the system.

[0020] In a further technical solution, the wastewater-velocity matching model is:

[0021]

[0022] in, is the wastewater-velocity matching coefficient, is the wastewater status evaluation coefficient, is the downward movement speed, is the maximum downward movement speed.

[0023] Further technical solution, the wastewater status evaluation module is:

[0024]

[0025]

[0026] in, is the wastewater status evaluation coefficient, is the concentration weight coefficient, is the current pollutant concentration, is the maximum pollutant concentration, is the pH deviation weight coefficient, is the current pH value, The optimal pH value is is the maximum pH deviation, is the minimum pH value, is the maximum pH value, is the temperature weight coefficient, is the current wastewater temperature, For the optimal temperature, is the temperature deviation from the maximum value, is the minimum temperature, is the maximum temperature.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. When the water trap moves downward, pressure is applied to the wastewater below the water trap, forcing the wastewater into the middle hole and flowing upward under the guidance of the guide tube, thereby causing the wastewater to flow upward along the center of the treatment tank. The wastewater comes into contact with the flocculant through the middle hole, and the rotating applicator stirs the wastewater and flocculant to mix them. The present invention can evenly introduce the flocculant into the wastewater, fully mix the wastewater and flocculant, and reduce the mixing time of the wastewater and flocculant;

[0029] 2. By changing the position of the cross blades relative to the water retaining plate, it can seal the reflux groove and stir the wastewater and flocculant;

[0030] 3. When the rotating cross blades move up and down in the treatment tank, the stirring height can be changed to stir the wastewater layer by layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of a down processing wastewater treatment device provided by the present invention;

[0032] Figure 2 The present invention provides Figure 1 Schematic diagram of the internal structure of the intermediate treatment tank;

[0033] Figure 3 The present invention provides Figure 2 Schematic diagram of the internal structure of the central spindle and water separator;

[0034] Figure 4 The present invention provides Figure 3 Schematic diagram of the enlarged structure of A;

[0035] Figure 5 The present invention provides Figure 2 Schematic diagram of the structure of the middle water tray;

[0036] Figure 6 The present invention provides Figure 4 Schematic diagram of the structure of the spraying rack;

[0037] Figure 7 The present invention provides Figure 2 Schematic diagram of the structure of the middle lifting frame;

[0038] Figure 8 The present invention provides Figure 4 Schematic diagram of the internal structure of the rotating sleeve;

[0039] Figure 9 This is a structural schematic diagram of a down processing wastewater treatment device provided by the present invention, in which the reflux trough and the cross blades are in a separated state.

[0040] In the attached figure: 101, treatment tank; 102, water inlet pipe; 103, drain pipe; 104, main shaft; 105, water barrier; 106, middle hole; 107, guide pipe; 108, spraying rack; 109, spraying pipe; 110, spraying pipe; 111, rotary joint; 112, one-way valve; 2, lifting drive assembly; 201, telescopic member 1; 202, connecting plate; 3, rotating assembly; 301, inner gear ring 1; 302, rotating shaft; 303 , gear one; 304, motor; 401, reflux groove; 402, lifting frame; 403, cross blades; 404, guide protrusion; 405, connecting shaft; 406, telescopic part two; 407, lifting sleeve; 5, transmission assembly; 501, connecting hole; 502, rotating sleeve; 503, gear two; 504, inner gear ring two; 505, guide groove; 506, connecting rod; 507, compression spring; 601, splicing arc plate one; 602, splicing arc plate two. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0042] In existing technologies, down processing wastewater is commonly treated using chemical coagulation, which involves adding flocculants to the upper layer of a reaction tank and relying on mechanical agitation to achieve mixing. However, due to dead zones in the agitation flow field, the flocculant diffuses unevenly, leading to excessive or insufficient concentrations in some areas. This results in chemical waste, unstable floc quality, and low treatment efficiency.

[0043] To address these issues, the inventors discovered that traditional static mixing modes were incapable of adapting to the dynamic changes in wastewater, necessitating a redesign of the reagent dosing and mixing mechanisms. By analyzing the formation mechanism of mixing blind spots, they proposed combining dynamic adjustment of the reagent dosing position with multi-dimensional diffusion. This approach utilizes lifting motion to generate forced convection, while rotational action covers radial diffusion blind spots, thereby overcoming the bottleneck in mixing efficiency.

[0044] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0045] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, a wastewater treatment device for down processing provided by an embodiment of the present invention includes a treatment tank 101, a drain pipe 103 fixed at the bottom of the treatment tank 101, and a water inlet pipe 102 fixed on the upper side wall of the treatment tank 101, and the water inlet pipe 102 and the drain pipe 103 are both installed with a check valve. It also includes: a main shaft 104 vertically slidably connected to the top of the treatment tank 101, and a water-isolating plate 105, a middle hole 106 is provided at the center of the water-isolating plate 105, the bottom of the main shaft 104 is fixed in the middle hole 106 by a bracket, and a lifting drive component 2 is installed on the treatment tank 101, and the lifting drive component 2 is used to drive the main shaft 104 to move up and down ; The bottom of the main shaft 104 is rotatably connected to a medicine application rack 108, and a rotating component 3 is installed on the medicine application rack 108, and the rotating component 3 is used to drive the medicine application rack 108 to rotate; the main shaft 104 is provided with a medicine feeding pipe 109 along its axis, and the medicine feeding pipe 109 is connected to a feeding pump through a hose, and a rotary joint 111 is installed at the bottom of the medicine feeding pipe 109. A medicine feeding pipe 110 is provided in the medicine application rack 108, and a one-way valve 112 is installed at one end of the medicine feeding pipe 110. The other end of the medicine feeding pipe 110 is connected to the medicine feeding pipe 109 through the rotary joint 111, and a guide tube 107 is installed along the inner wall of the middle hole 106.

[0046] In the embodiment of the present invention, when in use, wastewater is injected into the treatment tank 101 through the water inlet pipe 102. In the initial state, the water-isolating plate 105 is located at the upper part of the treatment tank 101, the rotating component 3 drives the dosing frame 108 to rotate, and the feeding pump injects the flocculant into the dosing pipe 109 through the hose. The flocculant is discharged through the rotary joint 111, the dosing pipe 110 and the one-way valve 112, so that the flocculant is put into the middle hole 106. The one-way valve 112 is used to prevent the wastewater from flowing back into the dosing pipe 110; the lifting drive component 2 drives the main shaft 104 to move downward, and the main shaft 104 drives the water-isolating plate 105 to move downward. When the water-isolating plate 105 moves downward, pressure is applied to the wastewater below the water-isolating plate 105, thereby squeezing the wastewater into the middle hole 106. 6, and flows upward under the guidance of the guide pipe 107, thereby causing the wastewater to flow upward along the center of the treatment tank 101, and the wastewater contacts the flocculant through the middle hole 106, and the rotating applicator 108 stirs the wastewater and the flocculant to mix the wastewater and the flocculant. When the water-isolating plate 105 moves upward and resets, the wastewater on the top of the water-isolating plate 105 flows downward from the middle hole 106, thereby mixing the wastewater and the flocculant again, and then the check valve of the drain pipe 103 is opened to discharge the mixed wastewater for the next sedimentation treatment. Compared with the existing method of adding flocculants to the upper layer of wastewater and then mixing them, the present invention can evenly add flocculants into the wastewater, fully mix the wastewater and the flocculant, and reduce the mixing time of the wastewater and the flocculant.

[0047] like Figure 1 and Figure 2 As shown, as a preferred embodiment of the present invention, the lifting drive assembly 2 includes a telescopic member 201 fixed on the side wall of the processing tank 101, and the telescopic end of the telescopic member 201 is connected to the main shaft 104 through a connecting plate 202.

[0048] In an embodiment of the present invention, the telescopic member 201 adopts an electric telescopic rod, a cylinder or a hydraulic cylinder. When the telescopic member 201 is extended, the telescopic member 201 drives the connecting plate 202 to move upward, and the connecting plate 202 drives the main shaft 104 to move upward. When the telescopic member 201 is retracted, the telescopic member 201 drives the connecting plate 202 to move downward, and the connecting plate 202 drives the main shaft 104 to move downward.

[0049] like Figure 2 、 Figure 3 、 Figure 3 and Figure 6As shown, as a preferred embodiment of the present invention, the rotating component 3 includes a rotating shaft 302 rotatably connected to the main shaft 104, the bottom of the rotating shaft 302 passes through the main shaft 104 and is fixed with a gear 303, the applicator frame 108 is fixed with an inner gear ring 301, and the inner gear ring 301 is engaged with the gear 303, the top of the main shaft 104 is fixed with a motor 304, and the rotating end of the motor 304 is connected to the top of the rotating shaft 302.

[0050] In the embodiment of the present invention, the motor 304 drives the rotating shaft 302 to rotate, the rotating shaft 302 drives the gear 1 303 to rotate, the gear 1 303 drives the inner gear ring 1 301 to rotate, and the inner gear ring 1 301 drives the applicator frame 108 to rotate.

[0051] like Figure 2 、 Figure 3 、 Figure 3 and Figure 6 As shown, as a preferred embodiment of the present invention, a lifting sleeve 407 is slidably connected to the side wall of the main shaft 104 along its length direction, and a lifting frame 402 is rotatably connected to the side wall of the lifting sleeve 407. A plurality of cross blades 403 are evenly fixed on the lifting frame 402 in an annular shape, and a plurality of reflux grooves 401 are evenly arranged on the water isolation plate 105. The plurality of cross blades 403 are matched one by one with the plurality of reflux grooves 401. The main shaft 104 is provided with a lifting mechanism for driving the lifting sleeve 407 to move along the length direction of the main shaft 104. A movable moving component; the moving component includes a guide protrusion 404 fixed on the inner wall of the lifting sleeve 407, and a guide groove slidingly matched with the guide protrusion 404 is provided on the side wall of the main shaft 104 along its length direction. A connecting shaft 405 is fixed on the top of the guide protrusion 404, and the connecting shaft 405 passes through the main shaft 104 upward. A telescopic part 2 406 is fixed on the top of the main shaft 104. The telescopic part 2 406 adopts an electric telescopic rod, a cylinder or a hydraulic cylinder, and the telescopic end of the telescopic part 2 406 is connected to the connecting shaft 405.

[0052] In the embodiment of the present invention, when the water barrier 105 moves upward and resets, the wastewater moves downward through the middle hole 106. In order to improve the efficiency of the upward reset of the water barrier 105 and improve the wastewater treatment efficiency, the telescopic member 406 contracts, and the telescopic member 406 drives the connecting shaft 405 to move upward. The connecting shaft 405 drives the lifting sleeve 407 to move upward. The lifting sleeve 407 drives the lifting frame 402 to move upward. The lifting frame 402 drives multiple cross blades 403 to move upward. The cross blades 403 are separated from the reflux groove 401 on the water barrier 105, so that the reflux groove 401 is opened, thereby increasing the speed of the wastewater on the top of the water barrier 105 to reflux downward. The distance between the cross blades 403 and the reflux groove 401 can also be controlled to make the water flow It is forced to pass through the gap between the cross blades 403 and the reflux groove 401, generating high shear force to break the fixed vortex. By adjusting the distance between the cross blades 403 and the reflux groove 401, the resistance and dispersion range of the water flow path can be changed, forming a dynamically changing mixing intensity in the radial and axial directions of the treatment tank 101; when the water-blocking plate 105 moves downward, the telescopic part 2 406 extends, and the telescopic part 2 406 drives the connecting shaft 405 to move downward, and the connecting shaft 405 drives the lifting sleeve 407 to move downward, and the lifting sleeve 407 drives the lifting frame 402 to move downward, and the lifting frame 402 drives multiple cross blades 403 to move downward, and the cross blades 403 are inserted into the reflux groove 401 on the water-blocking plate 105 to seal the reflux groove 401.

[0053] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 7 、 Figure 8 and Figure 9 As shown, as a preferred embodiment of the present invention, a transmission assembly 5 is provided on the main shaft 104, and the transmission assembly 5 includes a connecting hole 501 provided on the top of the lifting frame 402, and a rotating sleeve 502 rotatably connected to the side wall of the main shaft 104, the rotating sleeve 502 is located above the lifting frame 402, and an inner gear ring 2 504 is embedded on the inner wall of the rotating sleeve 502, and a gear 2 503 meshing with the inner gear ring 2 504 is fixed on the side wall of the connecting shaft 405, and a guide groove 505 is provided at the bottom of the rotating sleeve 502, and a compression spring 507 is fixed in the guide groove 505. The end of the compression spring 507 is connected to a connecting rod 506, and the connecting rod 506 is slidably connected in the guide groove 505.

[0054] In the embodiment of the present invention, the water-isolating plate 105 moves upward, and when the wastewater on the top of the water-isolating plate 105 flows back downward through the middle hole 106, the lifting sleeve 407 drives the lifting frame 402 to move upward relative to the main shaft 104, and the lifting frame 402 disengages from the reflux groove 401, and the reflux groove 401 is opened, thereby allowing the wastewater on the top of the water-isolating plate 105 to quickly flow back downward through the middle hole 106; the lifting frame 402 moves upward and approaches the rotating sleeve 502 until the connecting rod 506 at the bottom of the rotating sleeve 502 is inserted into the connecting hole 501 at the top of the lifting frame 402, at this time, the rotating shaft 302 drives the gear 2 503 to rotate, the gear 2 503 drives the inner gear ring 2 504 to rotate, the inner gear ring 2 504 drives the rotating sleeve 502 to rotate, the rotating sleeve 502 drives the connecting rod 506 to revolve along the axis of the rotating sleeve 502, the revolving connecting rod 506 drives the lifting frame 402 to rotate through the connecting hole 501, and the lifting frame 402 drives the cross blade The blades 403 rotate, and the cross blades 403 stir the wastewater moving downward, thereby promoting the mixing of the flocculant and the wastewater. By changing the position of the cross blades 403 relative to the water-isolating plate 105, the reflux groove 401 can be sealed and the wastewater and the flocculant can be stirred. When the water-isolating plate 105 moves downward, the lifting frame 402 moves downward away from the rotating sleeve 502, and the connecting rod 506 at the bottom of the rotating sleeve 502 is separated from the connecting hole 501 at the top of the lifting frame 402. The lifting frame 402 and the cross blades 403 are not connected to the rotating shaft 302 for transmission. The cross blades 403 seal the reflux groove 401, so that the wastewater at the bottom of the water-isolating plate 105 can only flow upward through the middle hole 106, which is used to evenly apply the medicine to the wastewater passing through the middle hole 106 and evenly apply the flocculant to the wastewater. When the rotating cross blades 403 move up and down in the treatment tank 101, the stirring height can be changed to stir the wastewater layer by layer.

[0055] like Figure 2 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 9 As shown, as a preferred embodiment of the present invention, the guide tube 107 includes a plurality of spliced ​​arc plates 601 and a plurality of spliced ​​arc plates 602, the plurality of spliced ​​arc plates 601 are evenly fixed in a ring at the bottom of the lifting frame 402, the plurality of spliced ​​arc plates 602 are evenly fixed in a ring at the bottom of the water isolation plate 105, and the plurality of spliced ​​arc plates 601 and the plurality of spliced ​​arc plates 602 are staggered.

[0056] In the embodiment of the present invention, when the water isolation plate 105 moves downward and the lifting frame 402 approaches the water isolation plate 105, the arc plate 1 601 is inserted into the adjacent arc plate 2 602, and the plurality of arc plates 1 601 and the plurality of arc plates 2 602 form a guide tube 107 with a side wall seal (such as Figure 2As shown in FIG2 ), when the wastewater at the lower end of the water-isolating plate 105 moves upward through the middle hole 106, the guide tube 107 sealed by the side wall guides the water flow, causing the wastewater to move upward along the center of the treatment tank 101; when the water-isolating plate 105 moves upward, the lifting frame 402 moves away from the water-isolating plate 105, the spliced ​​arc plate 1 601 is separated from the adjacent spliced ​​arc plate 2 602, and multiple spliced ​​arc plates 1 601 and multiple spliced ​​arc plates 2 602 form a guide tube 107 with an open side wall (as shown in FIG2 ). Figure 9 As shown), when the cross blades 403 and the applicator rack 108 rotate, the horizontal movement of the wastewater is not affected, so that the wastewater is fully mixed in the horizontal direction, and when the lifting rack 402 moves up and down relative to the water-isolating plate 105, it also plays a role in changing the state of the guide tube 107.

[0057] As a preferred embodiment of the present invention, it also includes a dosage adjustment system for adjusting the dosage of the end of the drug application pipeline 110 in real time, including:

[0058] An information acquisition module is used to obtain the pollutant concentration and pH value of the wastewater in the guide pipe 107, the downward movement speed of the water isolation plate 105, and the wastewater temperature;

[0059] The wastewater status evaluation module builds a wastewater status evaluation model based on pollutant concentration, pH value and wastewater temperature and outputs the wastewater status evaluation coefficient;

[0060] The wastewater-velocity matching module builds a wastewater-velocity matching model based on the downward movement speed and the wastewater state evaluation coefficient and outputs the wastewater-velocity matching coefficient;

[0061] The dosage adjustment module constructs a dosage adjustment model based on the wastewater-velocity matching coefficient and the current dosage, outputs the target dosage, and adjusts the current dosage to the target dosage.

[0062] Among them, the information acquisition module refers to the real-time collection of the pollutant concentration and pH value of the wastewater in the guide tube 107, the downward movement speed of the water barrier and the wastewater temperature through sensors, such as using optical sensors to detect the pollutant concentration, electrochemical sensors to measure the pH value, displacement sensors to record the movement speed, and temperature sensors to monitor the wastewater temperature in the treatment tank 101. The wastewater state evaluation module refers to inputting the pollutant concentration, pH value and wastewater temperature into a preset mathematical model, and outputting a state coefficient that comprehensively reflects the difficulty of wastewater treatment, such as by weighted calculation of the pollutant concentration ratio, pH deviation and wastewater temperature. The wastewater-speed matching module refers to constructing a dynamic matching model by combining the movement speed and the state coefficient. The dosage adjustment module refers to calculating the target dosage based on the matching coefficient and the current dosage, such as using an incremental algorithm to adjust the output flow of the feeding pump.

[0063] Specifically, the pollutant concentration, pH value and wastewater temperature collected by the information acquisition module are input into the wastewater status evaluation model, and the wastewater status evaluation coefficient is generated through weighted fusion. This coefficient comprehensively reflects the pollution load and chemical environment of the wastewater. The wastewater-speed matching module combines the moving speed of the water-isolating plate with the wastewater status evaluation coefficient to dynamically calculate the wastewater-speed matching coefficient. The dosage adjustment module uses an incremental adjustment algorithm based on the matching coefficient to adjust the current dosage so that the dosage is matched with the wastewater treatment requirements in real time. For example, when the temperature deviates from the optimal range and causes the flocculant activity to decrease, the temperature impact factor automatically reduces the matching coefficient, triggering the dosage compensation mechanism to ensure stable reaction efficiency.

[0064] Compared with existing technologies, existing wastewater treatment devices rely on fixed dosages and mechanical mixing, unable to dynamically adjust dosage based on wastewater conditions, resulting in uneven mixing and waste. This solution uses multi-parameter linkage adjustment to match dosage with wastewater pollution load, flow conditions, and temperature conditions in real time, solving the problem of low mixing efficiency caused by static dosage and single-source mixing in traditional methods.

[0065] Through the above technical solution, this application achieves dynamic adaptation of flocculant dosage to wastewater treatment conditions, avoiding the problem of unstable floc quality caused by excessive or insufficient agent, and improving pollutant removal efficiency. At the same time, through the temperature compensation mechanism, the impact of temperature fluctuations on the flocculation reaction is effectively suppressed, ensuring the stability of the treatment effect under different environmental conditions.

[0066] The wastewater status evaluation module is:

[0067]

[0068]

[0069] in, is the wastewater status evaluation coefficient, ,and When , it means there is no pollutant, the pH is optimal, the temperature is optimal, and When , it means the pollutant concentration is the largest, the pH deviation is the largest, and the temperature deviation is the largest. is the concentration weight coefficient, , The current pollutant concentration refers to the content of suspended solids and organic pollutants in wastewater. It can be monitored in real time using optical sensors or chemical oxygen demand detectors to quantify the pollution load. The maximum pollutant concentration refers to the maximum concentration threshold that the system is designed to handle, for example, it is set according to the maximum effective range of the flocculant. is the pH deviation weight coefficient, , The current pH value can be measured online using a pH electrode to evaluate the environmental conditions of the flocculation reaction. The optimal pH value is the optimal value for the flocculant reaction. For example, it can be set to 6.5-7.5 for aluminum salt flocculants. The maximum pH deviation is determined by the system design and refers to the pH fluctuation range allowed by the system. For example, when the pH allowable range is 5.0-9.0 and the optimal pH is 7.0, Take 2.0, , is the minimum pH value, is the maximum pH value, is the temperature weight coefficient, ,and , is the current wastewater temperature, For the optimal temperature, is the temperature deviation from the maximum value, is the minimum temperature, is the maximum temperature, is the temperature influence factor, For the optimal temperature, , concentration weight coefficient , pH deviation weight coefficient and deviation weight coefficient It refers to the contribution ratio of pollutant concentration, pH deviation and temperature deviation to the overall evaluation, which can be adjusted by preset parameters or adaptive algorithms, such as When it is set to 0.7, the system pays more attention to the changes in pollutant concentration.

[0070] Specifically, the wastewater state evaluation model converts pollutant concentration, pH deviation and temperature deviation into a unified coefficient S through normalization processing to achieve multi-parameter coordinated control. The term increases, directly increasing the S value; when the pH deviates from the optimal value, The term increases and the S value is further corrected. The temperature is optimal when Greater than When the flocculant is decomposed and inactivated, the reaction effect will be reduced. Increase, need to increase the dosage to maintain the effect, Less than When the molecular motion slows down, the diffusion rate of the flocculant decreases and the flocculation reaction is incomplete. Increase, the dosage needs to be increased to compensate for the efficiency loss. , ensuring that the weights of concentration, pH and temperature are reasonably distributed to avoid a single parameter dominating the evaluation results. For example, in down wastewater treatment, if the pollutant concentration suddenly increases and the pH is acidic, the model will automatically increase the S value and trigger the downstream dosage compensation mechanism. At the same time, The dynamic definition of enables the model to adapt to the pH fluctuation range of different treatment scenarios and avoids evaluation bias caused by unreasonable preset thresholds.

[0071] Compared with existing technologies, traditional methods usually adjust the dosage based on only one parameter: pollutant concentration, pH value or temperature, without considering the synergistic effect of the three. For example, when the pollutant concentration is low but the pH is seriously deviated, the traditional method may reduce the dosage, resulting in insufficient flocculation reaction; while this solution uses a composite evaluation model to maintain a reasonable dosage in low concentration but high pH deviation scenarios. In addition, the pH deviation threshold in existing technologies is mostly fixed and cannot adapt to different wastewater types, while this solution uses a composite evaluation model to maintain a reasonable dosage in low concentration but high pH deviation scenarios. Dynamic calculation enhances the model's adaptability to different processing scenarios.

[0072] Through the above technical solution, this application solves the problem of inaccurate dosage caused by dynamic changes in pollutant concentration, pH value and temperature, and realizes real-time matching of flocculant dosage with wastewater status. For example, in down processing wastewater with large fluctuations in pollutant concentration and unstable pH, the model accurately controls the dosage by dynamically adjusting the S value to avoid floc dispersion caused by excessive dosage or incomplete reaction caused by insufficient dosage. Furthermore, through the flexible configuration of weight coefficients, the system can optimize the evaluation model for different water quality characteristics. For example, the α value can be increased for high-oil wastewater to strengthen the influence weight of pollutant concentration.

[0073] The wastewater-velocity matching model is:

[0074]

[0075] in, The wastewater-velocity matching coefficient refers to a dynamic adjustment parameter that comprehensively considers the wastewater pollution status and flow velocity. Specifically, it can be obtained by using sensors to collect pollutant concentration, pH value, water-isolating plate movement speed and temperature data in real time, and calculated by the controller to characterize the matching degree of the required flocculant dosage under the current working conditions. , When , it means there is no wastewater flow. When , it means the pollution is the greatest and the speed is the greatest. is the wastewater status evaluation coefficient, is the downward movement speed, is the maximum downward movement speed, determined by the system design.

[0076] Specifically, the wastewater state evaluation coefficient S is calculated by weighting the pollutant concentration, pH and temperature deviation to quantify the wastewater treatment demand; the water isolation plate moving speed v is related to the maximum design speed. The ratio of S to M reflects wastewater flow. When wastewater pollutant concentrations, pH deviations, and temperature deviations increase, the S value increases, driving the M value upwards and increasing the dosage. When the baffle moves downward faster, the flow rate increases, leading to a higher dosage. The multiplication of these two factors couples these multidimensional parameters into a single control variable, enabling dynamic optimization of dosage.

[0077] Compared with existing technologies, traditional methods use fixed dosing strategies or adjust dosage based solely on pollutant concentration, which cannot adapt to flow rate fluctuations. This solution introduces a velocity weighting factor and incorporates flow state into the control logic. This solves the problems of localized oversaturation or incomplete reaction caused by uneven mixing, while also overcoming fluctuations in efficacy caused by high-temperature agent inactivation or insufficient diffusion at low temperatures.

[0078] Through the above technical solution, this application realizes dynamic and precise control of the flocculant dosage, ensuring real-time matching of the agent dosage with the reaction requirements under different pollution loads, flow rates and temperature conditions, avoiding agent waste or reduced treatment effect due to uneven mixing or temperature deviation, and improving the stability and economy of the wastewater treatment system.

[0079] The dosage adjustment model is:

[0080]

[0081] in, The target dosage is the dosage of flocculant calculated according to the real-time working conditions. It can be realized by dynamic feedback control algorithm to replace the fixed dosage mode. The current dosage is the actual dosage per unit time of the system, which can be obtained through real-time monitoring of the flow sensor. To adjust the gain, an adaptive parameter setting method can be used to avoid oscillation or overshoot during the adjustment process. , is the wastewater-velocity matching coefficient, which can be generated by a multivariable fusion algorithm and is used to characterize the intensity of the reagent demand under the current working conditions. The maximum dosing capacity of the system refers to the maximum dosing rate allowed by the equipment, which is determined by the rated flow of the dosing pump and is used to constrain the adjustment range of the dosing amount.

[0082] Specifically, during the wastewater treatment process, the wastewater-speed matching coefficient M is calculated by collecting real-time data on pollutant concentration, pH value, speed of movement of the water barrier 105 and temperature. This coefficient is input into the dosage adjustment model and combined with the current dosage. Maximum system capacity , generate target dosage The gain K is adjusted to control the magnitude of each adjustment. When the M value increases, the model automatically increases the dosage to match the pollutant treatment requirements; when the M value decreases, the dosage is gradually reduced. Through cyclic iterative updates, a dynamic match between the dosage and the wastewater treatment requirements is achieved. For example, when a sudden increase in pollutant concentration is detected and the speed of the water barrier 105 increases, the increase in the M value triggers an increase in the dosage.

[0083] Compared to existing technologies, traditional methods rely on fixed dosing rates or single parameter adjustments, failing to adapt to the dynamic coupling between pollutant concentration fluctuations and mixing intensity. This solution, however, leverages a multi-parameter fusion matching coefficient, M, to correlate pollutant status, agent diffusion efficiency, and equipment operating conditions, enabling dosing adjustments to balance reaction requirements and mixing conditions. For example, if mixing efficiency decreases due to mechanical agitation blind spots, a reduction in the baffle speed is directly reflected in the M value, automatically compensating by increasing the dosing rate to compensate for insufficient mixing.

[0084] Through the above technical solution, this application solves the problem of localized overdosage or underdosage of reagents due to uneven mixing. When the concentration of wastewater pollutants increases, the system automatically increases the dosage to ensure sufficient flocculation reaction. When the temperature deviates from the optimal range, causing the activity of the reagent to decrease, the matching coefficient is corrected to avoid overdosage. When the speed of the water-isolating tray changes, the dosage is adjusted synchronously to maintain mixing efficiency. This achieves an adaptive match between the dosage of flocculant and the wastewater treatment requirements, reduces the waste of reagents caused by fluctuations in operating conditions, and at the same time ensures the quality of floc formation and the stability of the effluent water quality.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A down processing wastewater treatment device, comprising a treatment tank, characterized in that: Also includes: The top of the treatment tank is vertically slidably connected to the main shaft and the water-isolating plate. The center of the water-isolating plate is provided with a middle hole. The bottom of the main shaft is fixed in the middle hole through a bracket. The treatment tank is equipped with a lifting drive assembly, which is used to drive the main shaft to move up and down. The bottom of the main shaft is rotatably connected to a pesticide application frame, on which a rotating assembly is installed, which is used to drive the pesticide application frame to rotate; A dosing pipe is provided along the axis of the main shaft, the dosing pipe is connected to a dosing pump through a hose, a rotary joint is installed at the bottom of the dosing pipe, a dosing pipe is provided in the dosing frame, a one-way valve is installed at one end of the dosing pipe, and the other end of the dosing pipe is connected to the dosing pipe through a rotary joint, and a guide pipe is installed along the inner wall of the middle hole.

2. The down processing wastewater treatment device according to claim 1, characterized in that: The lifting drive assembly comprises a telescopic member 1 fixed on the side wall of the processing tank, and the telescopic end of the telescopic member 1 is connected to the main shaft through a connecting plate.

3. The down processing wastewater treatment device according to claim 1, characterized in that: The rotating assembly includes a rotating shaft rotatably connected inside the main shaft. The bottom of the rotating shaft passes through the main shaft and is fixed with a gear 1. An internal gear ring 1 is fixed in the spraying frame, and the internal gear ring 1 is engaged with the gear 1. A motor is fixed at the top of the main shaft, and the rotating end of the motor is connected to the top of the rotating shaft.

4. The down processing wastewater treatment device according to claim 3, characterized in that: A lifting sleeve is slidably connected to the side wall of the main shaft along its length direction, and a lifting frame is rotatably connected to the side wall of the lifting sleeve. A plurality of cross blades are evenly fixed on the lifting frame in a ring shape, and a plurality of reflux grooves are evenly arranged on the water-isolating plate in a ring shape. The plurality of cross blades are matched one by one with the plurality of reflux grooves. A moving component for driving the lifting sleeve to move along the length direction of the main shaft is provided on the main shaft.

5. The down processing wastewater treatment device according to claim 3, characterized in that: The moving component includes a guide protrusion fixed on the inner wall of the lifting sleeve, and a guide groove is provided on the side wall of the main shaft along its length direction, which slides with the guide protrusion. A connecting shaft is fixed on the top of the guide protrusion, and the connecting shaft passes through the main shaft upward. A telescopic part 2 is fixed on the top of the main shaft, and the telescopic end of the telescopic part 2 is connected to the connecting shaft.

6. The down processing wastewater treatment device according to claim 4, characterized in that: A transmission assembly is provided on the main shaft, and the transmission assembly includes a connecting hole provided on the top of the lifting frame, and a rotating sleeve rotatably connected to the side wall of the main shaft. The rotating sleeve is located above the lifting frame, and an inner gear ring 2 is embedded on the inner wall of the rotating sleeve. A gear 2 meshing with the inner gear ring 2 is fixed on the side wall of the connecting shaft. A guide groove is provided at the bottom of the rotating sleeve, and a compression spring is fixed in the guide groove. The end of the compression spring is connected to a connecting rod, and the connecting rod is slidably connected in the guide groove.

7. The down processing wastewater treatment device according to any one of claims 1 to 6, characterized in that: It also includes a dosage adjustment system for adjusting the dosage at the end of the application pipeline in real time, including: An information acquisition module is used to obtain the pollutant concentration and pH value of the wastewater in the guide pipe, the downward movement speed of the water isolation plate, and the wastewater temperature; The wastewater status evaluation module builds a wastewater status evaluation model based on pollutant concentration, pH value and wastewater temperature and outputs the wastewater status evaluation coefficient; The wastewater-velocity matching module builds a wastewater-velocity matching model based on the downward movement speed and the wastewater state evaluation coefficient and outputs the wastewater-velocity matching coefficient; The dosage adjustment module constructs a dosage adjustment model based on the wastewater-velocity matching coefficient and the current dosage, outputs the target dosage, and adjusts the current dosage to the target dosage.

8. The down processing wastewater treatment device according to claim 7, characterized in that: The dosage adjustment model is: in, is the target dosage, is the current dosage, To adjust the gain, is the wastewater-velocity matching coefficient, It is the maximum dosing capacity of the system.

9. The down processing wastewater treatment device according to claim 8, characterized in that: The wastewater-velocity matching model is: in, is the wastewater-velocity matching coefficient, is the wastewater status evaluation coefficient, is the downward movement speed, is the maximum downward movement speed.

10. The down processing wastewater treatment device according to claim 9, characterized in that: The wastewater status evaluation module is: in, is the wastewater status evaluation coefficient, is the concentration weight coefficient, is the current pollutant concentration, is the maximum pollutant concentration, is the pH deviation weight coefficient, is the current pH value, The optimal pH value is is the maximum pH deviation, is the minimum pH value, is the maximum pH value, is the temperature weight coefficient, is the current wastewater temperature, For the optimal temperature, is the temperature deviation from the maximum value, is the minimum temperature, is the maximum temperature.

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