A sewage treatment device for environmental protection engineering

Abstract

The present invention relates to the field of sewage treatment, and discloses a sewage treatment device for environmental protection engineering. The key points of its technical solution are: comprising: a treatment box; two steps arranged in the treatment box, a medicine port being opened at the top of the steps, and a channel a being formed between the two steps; in the present application, the steps adopt a stepped design, which continuously interrupts the water flow when the sewage flows through, generates local turbulence, enhances the collision between particles, and significantly improves the initial aggregation effect of flocs. Compared with a smooth ramp, the stepped structure can repeatedly accelerate and decelerate between the upper and lower drops, forming an alternating distribution of turbulent flow areas and slow flow areas, effectively reducing the dispersion of particles, avoiding the damage of flocs to high shear forces, and significantly improving the initial flocculation efficiency. In the present application, the multiple flocculant bosses on the flocculant plate not only increase the contact area between the flocs and the sewage, but also enhance the further aggregation of particles.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a sewage treatment device for environmental protection engineering. Background Art

[0002] Ocean monitoring platforms play a vital role in global marine ecological protection and resource management. These platforms are widely used in marine environmental monitoring, weather forecasting, water quality testing, biodiversity assessment, and disaster warning. However, with the increase in marine development activities, particularly marine aquaculture, seabed mineral extraction, offshore oil and gas production, and the increasing frequency of offshore industrial wastewater discharge, the demand for wastewater treatment for ocean monitoring platforms is also increasing.

[0003] During the ocean monitoring process, not only the physical, chemical and biological indicators of seawater must be tested, but the domestic sewage, experimental wastewater and equipment cleaning wastewater generated by the platform itself must also be effectively treated to prevent secondary pollution.

[0004] In existing technologies, flocculants are widely used in sewage treatment, mainly for agglomerating tiny suspended particles into larger flocs for subsequent sedimentation and filtration. Existing treatment devices usually adopt a tank + stirring batch treatment method, and its typical structure includes:

[0005] Tank: used to contain sewage and flocculants, usually a closed or semi-closed structure.

[0006] Stirring device: The motor drives the blades to rotate, so that the chemicals and sewage are fully mixed to form flocs.

[0007] Sedimentation filtration: After stirring, flocs are removed by sedimentation filtration to achieve solid-liquid separation.

[0008] However, this treatment method has significant limitations, primarily the difficulty in achieving continuous treatment. During high-speed agitation, the initially formed flocs are easily disrupted by shear forces, leading to redispersion and poor stability, which reduces sedimentation efficiency. Furthermore, this batch treatment method requires waiting for the sewage and reagent to fully mix before sedimentation and filtration, resulting in a highly intermittent treatment process that is difficult to adapt to the needs of continuous sewage discharge. Summary of the Invention

[0009] In response to the shortcomings of the existing technology, the present invention provides a sewage treatment device for environmental protection projects that achieves efficient flocculation, dynamic filtration and continuous sewage discharge during the sewage treatment process, significantly improving the overall treatment efficiency, aiming to alleviate the above problems at least to a certain extent.

[0010] The above technical objectives of the present invention are achieved through the following technical solutions:

[0011] A sewage treatment device for environmental protection engineering, comprising:

[0012] Processing box;

[0013] Two steps are provided in the treatment box, the top of each step is provided with a medicine opening, and a channel a is formed between the two steps;

[0014] A flocculant plate is provided in the processing box, a plurality of flocculant bosses are provided on the top of the flocculant plate, and a channel b is formed between the flocculant plate and the ladder portion;

[0015] A channel c is formed between the guide plate a provided in the treatment box and the flocculant plate, and the flocculant plate is provided obliquely;

[0016] Two guide plates b are provided in the processing box body, a discharge channel is formed between the two guide plates b, and a sewage discharge channel is formed between the processing box body and the guide plates b;

[0017] A connecting shaft is provided in the processing box body, and a plurality of filter screens are provided on the connecting shaft. The filter screens can rotate along with the connecting shaft and pass through the guide plate b during rotation and slide on the surface of the guide plate b.

[0018] A driving component is provided between the processing box and the connecting shaft, and is used for rotating the connecting shaft.

[0019] Preferably, the top of the processing box is connected to a liquid inlet frame, the top of the liquid inlet frame is connected to a liquid inlet pipe, and the bottom of the liquid inlet frame is connected to two liquid distribution pipes, and the two liquid distribution pipes are respectively directed to the upper positions of the two ladder portions.

[0020] Preferably, a liquid cavity and a gas cavity are formed inside the step portion, the medicine port is opened at a vertical position of the first step of the step portion and is connected to the liquid cavity, and a gas port is also opened at the top of the step portion, which is opened at a horizontal position between the first step and the second step of the step portion, the gas cavity is connected to an air inlet pipe, and the liquid cavity is connected to a medicine inlet pipe.

[0021] Preferably, guide plates c are connected to both sides of the interior of the processing box, respectively, and are located at both ends of the flocculation plate and face the guide plate a.

[0022] Preferably, the driving component includes a motor connected to the processing box, and a driving shaft of the motor is connected to the connecting shaft.

[0023] Preferably, a connecting frame is connected to the connecting shaft, a plurality of connecting strips are slidably connected to the connecting frame, the filter is connected to the connecting strips, and a spring a is connected between the connecting strips and the connecting frame.

[0024] Preferably, the top of the guide plate c and the bottom of the flocculation plate are respectively provided with avoidance openings for avoiding the connecting frame.

[0025] Preferably, a groove is provided on the top of the fluff condensing plate, the fluff condensing boss is rotatably connected in the groove, and a spring b is connected between the boss and the groove.

[0026] Preferably, the driving component can adjust the angle of the flocculent boss when rotating the connecting shaft to a preset angle so that its upper surface is level with the channel b;

[0027] The bottom of the flocculent plate is connected to a limiting rod, a bracket is slidably connected to the limiting rod, a plurality of adjusting rods are connected to the top of the bracket, the top of the adjusting rod extends into the groove and contacts the bottom of the flocculent boss, a spring c is connected between the bracket and the limiting rod, and the potential energy of the spring c is greater than that of the spring b.

[0028] Preferably, one end of the connecting shaft extends to the outer wall of the processing box and is connected to a cam. The bottom of the bracket is rotatably connected to a connecting rod. A connecting opening is provided on the processing box. A connecting rod is slidably connected in the connecting opening. The connecting rod is rotatably connected to the other end of the connecting rod.

[0029] In summary, the present invention mainly has the following beneficial effects:

[0030] This application achieves efficient flocculation, dynamic filtration and continuous sewage discharge in the sewage treatment process, significantly improving the overall treatment efficiency.

[0031] The ladder structure in this application uses a stepped design, which continuously interrupts the flow of sewage as it passes through, generating localized turbulence and enhancing collisions between particles, significantly improving the initial aggregation of flocs. Compared to a smooth ramp, the stepped structure can repeatedly accelerate and decelerate between the upper and lower drops, forming alternating zones of turbulence and slow flow. This effectively reduces particle dispersion, avoids the damage of flocs caused by high shear forces, and significantly improves initial flocculation efficiency.

[0032] In this application, the multiple flocculation bosses on the flocculent plate not only increase the contact area between the flocs and the sewage, but also enhance further particle aggregation. The recessed surfaces between the bosses form a multi-level buffer zone, reducing the rebound and dispersion of particles during the sinking process, ensuring that larger flocs settle faster downstream, significantly improving sedimentation efficiency. Furthermore, when the connecting shaft is rotated to a preset angle, the flocculation bosses can be adjusted to a horizontal position, forming a continuous, smooth flow path. This ensures that the flocs can be discharged smoothly while maintaining a good flocculation effect.

[0033] In this application, a dynamic filtration area is formed by the filter screen, which can intercept flocs passing through the guide plate A. As the filter screen rotates, centrifugal force and gravity can be used to automatically remove particles attached to the filter screen.

[0034] In summary, through the coordinated cooperation of the initial flocculation of the ladder, the multi-stage sedimentation of the flocculation boss and the dynamic filtration structure, efficient solid-liquid separation is achieved, which significantly improves the overall processing efficiency, reduces the cleaning frequency and maintenance costs of the equipment, and ensures long-term stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 is another schematic diagram of the overall structure of the present invention;

[0037] Figure 3 It is a cross-sectional schematic diagram of the overall structure of the present invention;

[0038] Figure 4 It is a schematic diagram of the ladder structure of the present invention;

[0039] Figure 5 It is a schematic diagram of the structure of the flocculation plate of the present invention;

[0040] Figure 6 Schematic diagram of guide plate a of the present invention;

[0041] Figure 7 It is a schematic structural diagram of the connecting frame of the present invention;

[0042] Figure 8 It is another structural schematic diagram of the flocculation plate structure of the present invention;

[0043] Figure 9 It is a schematic diagram of the support structure of the present invention;

[0044] Figure 10 It is a schematic diagram of the structure of the flocculation boss of the present invention.

[0045] Reference numerals:

[0046] 100, treatment box; 101, ladder; 102, reagent port; 103, channel a; 104, flocculant plate; 105, flocculant boss; 106, channel b; 107, guide plate a; 108, channel c; 109, guide plate b; 110, discharge channel; 111, sewage channel; 112, connecting shaft; 113, filter screen;

[0047] 200, liquid inlet frame; 201, liquid inlet pipe; 202, liquid dispensing pipe; 203, liquid chamber; 204, gas chamber; 205, gas port; 206, air inlet pipe; 207, drug inlet pipe; 208, guide plate c;

[0048] 300, motor; 301, connecting frame; 302, connecting bar; 303, spring a; 304, avoidance;

[0049] 400, groove; 401, spring b; 402, limit rod; 403, bracket; 404, adjustment rod; 405, spring c; 406, cam; 407, connecting rod; 408, connecting opening; 409, connecting rod. DETAILED DESCRIPTION

[0050] In existing technologies, flocculants are widely used in sewage treatment, mainly for agglomerating tiny suspended particles into larger flocs for subsequent sedimentation and filtration. Existing treatment devices usually adopt a tank + stirring batch treatment method, and its typical structure includes:

[0051] Tank: used to contain sewage and flocculants, usually a closed or semi-closed structure.

[0052] Stirring device: The motor drives the blades to rotate, so that the chemicals and sewage are fully mixed to form flocs.

[0053] Sedimentation filtration: After stirring, flocs are removed by sedimentation filtration to achieve solid-liquid separation.

[0054] However, this treatment method has significant limitations, primarily the difficulty in achieving continuous treatment. During high-speed agitation, the initially formed flocs are easily disrupted by shear forces, leading to redispersion and poor stability, which reduces sedimentation efficiency. Furthermore, this batch treatment method requires waiting for the sewage and reagent to fully mix before sedimentation and filtration, resulting in a highly intermittent treatment process that is difficult to adapt to the needs of continuous sewage discharge.

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0056] refer to Figures 1-10 , a sewage treatment device for environmental protection engineering, comprising:

[0057] The processing box 100 has openings at the bottom and top;

[0058] A ladder portion 101 is provided in the processing box 100 and fixed to the processing box 100. A medicine opening 102 is provided at the top of the ladder portion 101. The ladder portion 101 has two mirror-imaged ladder portions 101 disposed in the processing box 100. A channel a103 is formed between the two ladder portions 101.

[0059] A flocculant plate 104 is provided in the processing box 100 and fixed to the processing box 100. The flocculant plate 104 is located at the bottom of the channel a103. A plurality of flocculant bosses 105 are provided on the top of the flocculant plate 104. A channel b106 is formed between the flocculant plate 104 and the step 101.

[0060] The guide plates a107 are provided in the processing box 100 and fixed to the processing box 100. There are two guide plates a107, which are located at the lower positions of both ends of the flocculation plate 104, and a channel c108 is formed between the guide plates a107 and the flocculation plate 104. The flocculation plate 104 is arranged obliquely.

[0061] A guide plate b109 is provided in the processing box 100 and fixed to the processing box 100. There are two guide plates b109 located below the guide plate a107. A discharge channel 110 is formed between the two guide plates b109. A sewage discharge channel 111 is formed between the processing box 100 and the guide plates b109.

[0062] A connecting shaft 112 is provided in the processing box 100. A plurality of filters 113 are provided on the connecting shaft 112. The filters 113 can rotate along with the connecting shaft 112 and pass through the guide plate b109 during rotation, sliding on the surface of the guide plate b109.

[0063] A driving component provided between the processing box 100 and the connecting shaft 112, for rotating the connecting shaft 112;

[0064] The driving component can adjust the angle of the flocculent boss 105 when rotating the connecting shaft 112 to a preset angle, so that its upper surface is level with the channel b106;

[0065] Through the above-mentioned arrangement, during operation, sewage flows in from the two steps 101 at the top of the treatment box 100. A reagent port 102 is provided at the top of the step 101. When the sewage passes through this point, the flocculant is released from the reagent port 102 and fully mixed with the sewage. The structure of the step 101 adopts a stepped design rather than a simple inclined plane. This structure has obvious advantages in terms of mixing effect and flocculation efficiency in sewage treatment. Specifically, the stepped structure can continuously interrupt the water flow when the sewage flows through, generate local turbulence, increase the frequency of collisions between particles, and significantly improve the efficiency of floc formation. Each step will guide the water flow to repeatedly accelerate and decelerate during the falling process of the sewage, further enhancing the interaction between particles. Compared with a smooth ramp, the stepped structure is more likely to form turbulence, which is conducive to the initial flocculation and agglomeration of particles. In addition, the stepped structure can effectively reduce the impact force of particles in high-speed flow, avoiding the floc breakage caused by high shear force in traditional mixing tanks.

[0066] After preliminary mixing, the sewage enters the flocculant plate 104 area through channel a103. Flocculant plate 104 is located at the bottom of channel a103, and its surface is covered with multiple floc-coagulating bosses 105. These bosses not only increase the contact area between the flocs and the sewage but also promote further aggregation of particles. As the flocs pass through flocculant plate 104, they are effectively aggregated into larger particles, reducing the risk of floc dispersion and breakage downstream. Flocculant plate 104 not only serves as the primary area for floc sedimentation, but also creates a multi-stage sedimentation effect through its boss structure, allowing the flocs to gradually grow under the action of gravity, thereby improving sedimentation efficiency.

[0067] The multiple flocculent bosses 105 on the flocculent plate 104 can also form a multi-level buffer zone during floc sedimentation, reducing the rebound and dispersion of particles during the sinking process, further enhancing the particle aggregation effect. A recessed surface is formed between each flocculent boss 105. The recessed surface can form a local low-speed zone, slowing the water flow rate, reducing the shear and fragmentation of flocs, and ensuring that larger flocs can settle faster downstream. In addition, when the drive component rotates the connecting shaft 112 to a preset angle, the angle of the flocculent boss 105 is adjusted to a horizontal state. At this time, the surface of the flocculent plate 104 is generally flat, and the recessed surface between each two adjacent flocculent bosses 105 is eliminated, forming a continuous and smooth flow channel. In this state, sewage can flow smoothly along the surface of the flocculent plate 104, reducing the accumulation and retention of flocs between the bosses. The water flow can push the flocs forward, ensuring that the flocs can smoothly enter the guide plate a107 area and ultimately be filtered through the filter screen 113.

[0068] The angle adjustment of the flocculation boss 105 is determined according to the rotation angle of the connecting shaft 112, that is, when the connecting shaft 112 rotates to the preset angle, the flocculation boss 105 will make an angle adjustment to adjust the boss surface to a horizontal state, forming a continuous smooth flow channel, and then after the connecting shaft 112 continues to rotate, the boss will return to its original tilt angle. This angle adjustment of the flocculation boss 105 not only ensures the flocculation effect, but also effectively avoids the retention of flocs, ensuring that the flocs are finally filtered.

[0069] At this time, the filter screen 113 on the connecting shaft 112 begins to work. The filter screen 113 is installed on the connecting shaft 112, and the connecting shaft 112 drives the filter screen 113 to rotate through the driving component. When the connecting shaft 112 rotates, the surface of the filter screen 113 will contact and slide with the surface of the guide plate a107, forming a dynamic filtration area. In this process, the filter screen 113 can not only intercept the flocs passing through the guide plate a107, but also remove the flocs attached to the guide plate a107 during the contact process with the guide plate a107, thereby preventing the flocs from accumulating on the surface of the guide plate a107. The multi-piece filter screen 113 structure ensures that when the connecting shaft 112 rotates, there is always at least one filter screen 113 on the surface of the guide plate a107, ensuring a continuous filtration effect, reducing the risk of floc backflow, and significantly improving the overall solid-liquid separation efficiency. As filter screen 113 rotates away from guide plate a107, the trapped flocs slide off filter screen 113 under the combined effects of centrifugal force and gravity and exit treatment chamber 100 through drainage channel 111 formed between treatment chamber 100 and guide plate b109. Because filter screen 113 continuously slides on the surface of guide plate b109, it automatically cleans the waste, reducing floc accumulation on filter screen 113, significantly reducing the probability of clogging, and extending the service life of filter screen 113.

[0070] Finally, the wastewater, filtered by filter screen 113, flows slowly under the guidance of guide plate a 107 toward guide plate b 109 located below it, where the remaining fine particles are further settled. The wastewater is then smoothly discharged from treatment tank 100 through discharge channel 110, achieving continuous and efficient solid-liquid separation. This process ensures the integrity of the flocs during coagulation, settling, filtration, and discharge, greatly improving wastewater treatment efficiency and significantly reducing equipment cleaning frequency and maintenance costs.

[0071] This application achieves efficient flocculation, dynamic filtration and continuous sewage discharge in the sewage treatment process, significantly improving the overall treatment efficiency.

[0072] In this application, the ladder section 101 adopts a stepped design, which continuously interrupts the flow of sewage as it passes through, generating localized turbulence and enhancing collisions between particles, significantly improving the initial aggregation of flocs. Compared to a smooth ramp, the stepped structure can repeatedly accelerate and decelerate between the upper and lower drops, forming alternating zones of turbulence and slow flow. This effectively reduces particle dispersion, avoids the damage of flocs caused by high shear forces, and significantly improves initial flocculation efficiency.

[0073] In this application, the multiple flocculation bosses 105 on the flocculation plate 104 not only increase the contact area between the flocs and the sewage but also enhance further particle aggregation. The recessed surfaces between the bosses form a multi-level buffer zone, reducing the rebound and dispersion of particles during the sinking process. This ensures that larger flocs settle faster downstream, significantly improving sedimentation efficiency. Furthermore, when the connecting shaft 112 is rotated to a preset angle, the flocculation bosses 105 can be adjusted to a horizontal position, forming a continuous, smooth flow path. This ensures both effective flocculation and smooth discharge of the flocs.

[0074] In the present application, the filter screen 113 is provided to form a dynamic filtration zone, which can intercept flocs passing through the guide plate a107. As the filter screen 113 rotates, the particles attached to the filter screen 113 can be automatically removed by centrifugal force and gravity.

[0075] In summary, through the coordinated cooperation of the preliminary flocculation of the ladder 101, the multi-stage sedimentation of the flocculation boss 105 and the dynamic filtration structure, efficient solid-liquid separation is achieved, the overall processing efficiency is significantly improved, the cleaning frequency and maintenance cost of the equipment are reduced, and long-term stable operation is ensured.

[0076] As a further solution of the present invention, the top of the processing box 100 is connected to a liquid inlet frame 200, the top of the liquid inlet frame 200 is connected to a liquid inlet pipe 201, and the bottom of the liquid inlet frame 200 is connected to two liquid distribution pipes 202, and the two liquid distribution pipes 202 are respectively directed to the upper positions of the two ladder portions 101;

[0077] In this embodiment, the top of the treatment box 100 is connected to a liquid inlet frame 200. The liquid inlet frame 200 cooperates with the liquid outlet pipe to provide a stable sewage inlet path for the ladder section 101, ensuring that the sewage can be evenly distributed to the upper positions of the two ladder sections 101. The top of the liquid inlet frame 200 is connected to a liquid inlet pipe 201, which is used to input external sewage sources and ensure that sewage can stably and continuously enter the treatment box 100. The bottom of the liquid inlet frame 200 is connected to two liquid distribution pipes 202, and the outlets of the liquid distribution pipes 202 are respectively directed to the upper positions of the two ladder sections 101. Through this diversion arrangement, it can be ensured that the sewage entering the ladder section 101 can be evenly distributed on the two ladder sections 101.

[0078] As a further embodiment of the present invention, a liquid chamber 203 and a gas chamber 204 are formed inside the ladder portion 101. The medicine port 102 is provided at a vertical position on the first step of the ladder portion 101 and communicates with the liquid chamber 203. A gas port 205 is further provided at the top of the ladder portion 101 and is provided at a horizontal position between the first and second steps of the ladder portion 101. The gas chamber 204 is communicated with an air inlet pipe 206, and the liquid chamber 203 is communicated with a medicine inlet pipe 207.

[0079] In this embodiment, a liquid cavity 203 and a gas cavity 204 are formed inside the ladder portion 101 . The liquid cavity 203 is used to transport flocculants, and the gas cavity 204 is used to introduce gas to further enhance the mixing effect of sewage and chemicals.

[0080] The reagent port 102 is provided at a vertical position on the first step of the ladder portion 101 and is connected to the liquid cavity 203. When the sewage slides down the ladder portion 101, the flocculant in the liquid cavity 203 can be continuously released through the reagent port 102 and fully mixed with the sewage. This vertically arranged reagent port 102 can effectively reduce the possibility of sewage flowing into the reagent cavity, ensuring that the flocculant can be released stably and continuously. In addition, a gas port 205 is provided at the top of the ladder portion 101. The gas port 205 is provided at a horizontal position between the first step and the second step and is connected to the gas cavity 204. The gas cavity 204 is further connected to the air inlet pipe 206, which is externally arranged to continuously output gas into the air inlet cavity through the air inlet pipe 206. Gas can be released during the sliding of the sewage, thereby increasing the disturbance of the water flow, further enhancing the collision between particles, and effectively improving the initial aggregation effect of the flocs.

[0081] As a further solution of the present invention, guide plates c208 are connected to both sides of the interior of the processing box 100, located at both ends of the flocculation plate 104 and facing the guide plate a107;

[0082] In this embodiment, the deflector c208 is installed primarily to prevent liquid from flowing directly into the drainage channel 111, ensuring stable flow along the deflector a107. Specifically, after the sewage passes through the flocculant plate 104, the water naturally diffuses to both sides. At this point, the deflector c208 effectively guides the water toward the deflector a107, preventing flocs from entering the drainage channel 111 due to the diffusion of the water flow. This reduces liquid loss and ensures efficient solid-liquid separation. Furthermore, the inclined arrangement of the deflector c208 reduces the impact of the water flow, minimizing the impact of turbulent flow on the flocs.

[0083] As a further solution of the present invention, the driving component includes a motor 300 connected to the processing box 100, and the driving shaft of the motor 300 is connected to the connecting shaft 112;

[0084] In this embodiment, the drive shaft of the motor 300 is connected to the connecting shaft 112. The rotation of the motor 300 drives the filter 113 on the connecting shaft 112 to rotate synchronously. This structural design of the motor 300 drive not only stably controls the speed and angle of the connecting shaft 112, but also allows for flexible adjustment according to different processing requirements.

[0085] As a further solution of the present invention, the connecting shaft 112 is connected to a connecting frame 301, a plurality of connecting bars 302 are slidably connected to the connecting frame 301, the filter 113 is connected to the connecting bars 302, and a spring a303 is connected between the connecting bars 302 and the connecting frame 301;

[0086] A plurality of connecting bars 302 are slidably connected to the connecting frame 301, and the filter screen 113 is connected to the connecting bars 302. The connecting bars 302 can slide on the connecting frame 301 and are connected to the connecting frame 301 through springs a303. The main function of the spring a303 is to provide elastic support to ensure that the filter screen 113 can produce adaptive displacement when passing through the guide plate a107, thereby avoiding hard interference between the filter screen 113 and the guide plate a107 due to the inclination of the guide plate a107. Specifically, when the connecting shaft 112 rotates, the filter screen 113 slides on the inclined surface of the guide plate a107. Due to the elastic restoring force of the spring a303, it can ensure that the filter screen 113 can adapt to inclined surfaces of different angles when contacting the guide plate a107, thereby achieving the purpose of dynamic filtration. Furthermore, as filter screen 113 slides in contact with guide plate a107, spring a303 stretches due to the relative displacement of filter screen 113. Once filter screen 113 leaves guide plate a107, spring a303 quickly rebounds, returning filter screen 113 to its initial position. At this point, the filter surface of filter screen 113 faces drain channel 111, and the vibration of spring a303 shakes off any flocs clinging to filter screen 113, further enhancing the self-cleaning function of filter screen 113.

[0087] As a further solution of the present invention, the top of the guide plate c208 and the bottom of the flocculation plate 104 are respectively provided with an escape opening 304 for avoiding the connecting frame 301;

[0088] In this embodiment, to ensure that the connecting frame 301 can pass smoothly during the rotation of the connecting shaft 112 and avoid mechanical interference with the guide plate c208 and the flocculation plate 104, a clearance opening 304 is provided at the top of the guide plate c208 and the bottom of the flocculation plate 104. The provision of the clearance opening 304 effectively prevents collision or jamming between the connecting frame 301 and the guide plate c208 or the flocculation plate 104 during the rotation of the filter screen 113, ensuring that the connecting frame 301 can smoothly pass through the gap between the guide plate c208 and the flocculation plate 104.

[0089] As a further solution of the present invention, a groove 400 is formed on the top of the flocculation plate 104, and the flocculation boss 105 is rotatably connected to the groove 400, and a spring b401 is connected between the boss and the groove 400;

[0090] In this embodiment, the recess 400 not only provides space for the installation of the flocculation boss 105 but also allows the flocculation boss 105 to be adjusted in angle under the action of an external force. When the connecting shaft 112 is rotated to a predetermined angle, the spring b401 provides elastic support, ensuring that the flocculation boss 105 returns to its original position after the angle adjustment, protruding again from the surface of the flocculation plate 104.

[0091] As a further solution of the present invention, the bottom of the flocculation plate 104 is connected to a limiting rod 402, a bracket 403 is slidably connected to the limiting rod 402, a plurality of adjustment rods 404 are connected to the top of the bracket 403, the tops of the adjustment rods 404 extend into the groove 400 and contact the bottom of the flocculation boss 105, a spring c405 is connected between the bracket 403 and the limiting rod 402, the potential energy of the spring c405 is greater than that of the spring b401, and the spring b401 is initially in a stretched state;

[0092] In this embodiment, the vertical movement of bracket 403 can be used to adjust the angle of flocculent boss 105. Specifically, when connecting shaft 112 rotates to a preset angle, bracket 403 moves downward, causing adjustment rod 404 on bracket 403 to move away from flocculent boss 105. Because the potential energy of spring c405 is greater than that of spring b401, as bracket 403 continues to move downward, spring b401 releases its potential energy, forcing flocculent boss 105 to rotate, gradually leveling its top surface. This creates a continuous, smooth flow path, eliminates recessed surfaces between bosses, and ensures smooth floc discharge. When the connecting shaft 112 rotates away from the preset angle, the bracket 403 is reset and moved upward by the force of the spring c405. At this time, the adjusting rod 404 is pressed against the bottom of the flocculant boss 105 again, forcing the flocculant boss 105 to rotate and stretching the spring b401 again, so that the boss can be restored to its original tilt angle and protrude from the surface of the flocculant plate 104 again, thereby achieving the purpose of intermittently adjusting the angle of the flocculant boss 105, so that the flocculant plate 104 can present different working states of "the flocculant boss 105 protrudes to ensure the flocculant effect" and "the upper surface of the flocculant plate 104 forms a smooth channel when the flocculant boss 105 shrinks in the groove 400".

[0093] As a further solution of the present invention, one end of the connecting shaft 112 extends to the outer wall of the processing box 100 and is connected to a cam 406. The bottom of the bracket 403 is rotatably connected to a connecting rod 407. The processing box 100 is provided with a connecting opening 408. A connecting rod 409 is slidably connected to the connecting opening 408. The connecting rod 409 is rotatably connected to the other end of the connecting rod 407.

[0094] In this embodiment, when the connecting shaft 112 rotates to a preset angle, the cam 406 can push the connecting rod 409 and apply downward pressure to the bracket 403 through the connecting rod 407, thereby driving the bracket 403 to move downward. At this time, the adjusting rod 404 is separated from the bottom of the boss, and the tension of the spring b401 is released, forcing the flocculent boss 105 to rotate to a horizontal state, forming a continuous smooth flow channel, eliminating the concave surface between the bosses, and ensuring that the flocs can be discharged smoothly.

[0095] When the connecting shaft 112 moves away from the preset angle, the thrust of the cam 406 disappears, and the potential energy of the spring c405 pushes the bracket 403 back upward, driving the adjustment rod 404 to press against the bottom of the flocculent boss 105 again, ensuring that the boss can quickly return to its original tilt angle and protrude above the surface of the flocculent plate 104 again, ensuring that the flocs can be fully gathered during the next round of settling. This linkage structure of cam 406, connecting rod 407, and bracket 403 can quickly and regularly adjust the flocculent boss 105 to different angles, thereby allowing the flocculent plate 104 to adopt different working conditions.

[0096] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment device for environmental protection engineering, characterized in that: include: A processing box (100) having openings at the bottom and top; Two ladders (101) are provided in the treatment box (100), and are mirror-imaged in the treatment box (100). The structure of the ladders (101) is designed in a stepped manner. Sewage flows in from the two ladders (101) at the top of the treatment box (100). Each step guides the water flow to repeatedly accelerate and decelerate during the falling process of the sewage. A medicine port (102) is provided at the top of the ladder (101), and a channel a (103) is formed between the two ladders (101); a flocculant plate (104) provided in the processing box (100), the flocculant plate (104) being located at the bottom of the channel a (103), a plurality of flocculant bosses (105) being provided on the top of the flocculant plate (104), and a channel b (106) being formed between the flocculant plate (104) and the ladder portion (101); a guide plate a (107) provided in the processing box (100), wherein the guide plates a (107) are provided in two numbers and are located at the lower positions of both ends of the flocculent plate (104), and a channel c (108) is formed between the guide plates a and the flocculent plate (104), and the flocculent plate (104) is provided at an angle; Two guide plates b (109) are provided in the processing box (100), and are located below the guide plate a (107); a discharge channel (110) is formed between the two guide plates b (109); and a sewage discharge channel (111) is formed between the processing box (100) and the guide plates b (109); A connecting shaft (112) is provided in the processing box (100), and a plurality of filter screens (113) are provided on the connecting shaft (112). The filter screens (113) can rotate along with the connecting shaft (112), and pass through the guide plate b (109) during rotation, and slide on the surface of the guide plate b (109); a driving component provided between the processing box (100) and the connecting shaft (112), used for rotating the connecting shaft (112); A groove (400) is provided on the top of the flocculent plate (104), the flocculent boss (105) is rotatably connected in the groove (400), and a spring b (401) is connected between the boss and the groove (400); Wherein, the driving component can adjust the angle of the flocculent boss (105) when the connecting shaft (112) is rotated to a preset angle so that its upper surface is level with the channel b (106).

2. A sewage treatment device for environmental protection engineering according to claim 1, characterized in that: The top of the processing box (100) is connected to a liquid inlet frame (200), the top of the liquid inlet frame (200) is connected to a liquid inlet pipe (201), and the bottom of the liquid inlet frame (200) is connected to two liquid distribution pipes (202), and the two liquid distribution pipes (202) are respectively directed toward the upper positions of the two ladder portions (101).

3. A sewage treatment device for environmental protection engineering according to claim 1, characterized in that: A liquid cavity (203) and a gas cavity (204) are formed inside the ladder portion (101), and the medicine port (102) is opened at a vertical position of the first step of the ladder portion (101) and is connected to the liquid cavity (203). A gas port (205) is also opened at the top of the ladder portion (101) and is opened at a horizontal position between the first step and the second step of the ladder portion (101). The gas cavity (204) is connected to an air inlet pipe (206), and the liquid cavity (203) is connected to a medicine inlet pipe (207).

4. The sewage treatment device for environmental protection engineering according to claim 1, characterized in that: Guide plates c (208) are respectively connected to both sides of the interior of the processing box (100), located at both ends of the flocculent plate (104) and facing the guide plate a (107).

5. The sewage treatment device for environmental protection engineering according to claim 1, characterized in that: The driving component comprises a motor (300) connected to the processing box (100), and a driving shaft of the motor (300) is connected to the connecting shaft (112).

6. The sewage treatment device for environmental protection engineering according to claim 4, characterized in that: The connecting shaft (112) is connected to a connecting frame (301), a plurality of connecting bars (302) are slidably connected to the connecting frame (301), the filter (113) is connected to the connecting bars (302), and a spring a (303) is connected between the connecting bars (302) and the connecting frame (301).

7. A sewage treatment device for environmental protection engineering according to claim 6, characterized in that: The top of the guide plate c (208) and the bottom of the flocculent plate (104) are respectively provided with avoidance openings (304) for avoiding the connecting frame (301).

8. The sewage treatment device for environmental protection engineering according to claim 1, characterized in that: The driving component is capable of adjusting the angle of the flocculent boss (105) when the connecting shaft (112) is rotated to a preset angle, so that its upper surface is level with the channel b (106); The bottom of the flocculent plate (104) is connected to a limiting rod (402), a bracket (403) is slidably connected to the limiting rod (402), a plurality of adjusting rods (404) are connected to the top of the bracket (403), the top of the adjusting rod (404) extends into the groove (400) and contacts the bottom of the flocculent boss (105), a spring c (405) is connected between the bracket (403) and the limiting rod (402), and the potential energy of the spring c (405) is greater than that of the spring b (401).

9. The sewage treatment device for environmental protection engineering according to claim 8, characterized in that: One end of the connecting shaft (112) extends to the outer wall of the processing box (100) and is connected to a cam (406). The bottom of the bracket (403) is rotatably connected to a connecting rod (407). A connecting opening (408) is provided on the processing box (100). A connecting rod (409) is slidably connected in the connecting opening (408). The connecting rod (409) is rotatably connected to the other end of the connecting rod (407).

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