Sewage treatment device for environmental protection engineering

Abstract

The invention relates to the field of sewage treatment, and discloses a sewage treatment device for environmental protection engineering, which is characterized by comprising a treatment box body, the two ladder parts are arranged in the treatment box body, medicament openings are formed in the tops of the ladder parts, and a channel a is formed between the two ladder parts; according to the invention, the ladder part adopts a ladder-shaped design, so that when sewage flows through the ladder part, water flow is continuously interrupted, local turbulence is generated, collision among particles is enhanced, and the preliminary aggregation effect of floc is remarkably improved. Compared with a smooth ramp, the stepped structure can repeatedly accelerate and decelerate between the upper fall and the lower fall, alternate distribution of turbulent flow areas and slow flow areas is formed, dispersion of particles is effectively reduced, damage of high shear force to flocs is avoided, and the initial flocculation efficiency is remarkably improved. According to the invention, the plurality of flocculation bosses on the flocculation plate not only increase the contact area of flocs and sewage, but also enhance further aggregation of particles.

Description

Technical Field

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

[0002] Ocean monitoring platforms play a crucial role in global marine ecological protection and resource management. These platforms are widely used in areas such as marine environmental monitoring, weather forecasting, water quality detection, biodiversity assessment, and disaster warning. However, with the increase in marine development activities, especially the increasing frequency of marine aquaculture, seabed mineral extraction, offshore oil and gas extraction, and offshore industrial wastewater discharge, the sewage treatment requirements faced by ocean monitoring platforms are also continuously increasing.

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

[0004] In the prior art, flocculants are widely used in sewage treatment, mainly for aggregating tiny suspended particles into larger flocs for subsequent sedimentation and filtration. Existing treatment devices usually adopt a batch treatment method of tank + stirring, and its typical structure includes: Tank: Used to hold sewage and flocculants, usually in a closed or semi-closed structure.

[0005] Stirring device: Driven by a motor to rotate the blades, so that the reagent and sewage are fully mixed to form flocs.

[0006] Sedimentation and filtration: After stirring, the flocs are removed through sedimentation and filtration to achieve solid-liquid separation.

[0007] However, this treatment method has obvious limitations, mainly manifested in the difficulty of achieving continuous treatment. During the high-speed stirring process, the initially formed flocs are easily damaged by shear force, resulting in the re-dispersion of the flocs, poor stability, and reduced sedimentation efficiency. At the same time, this batch treatment method requires waiting for the sewage and reagent to be fully mixed before sedimentation and filtration, and the treatment process is highly intermittent, making it difficult to meet the demand for continuously discharged sewage. Summary of the Invention

[0008] In view of the deficiencies of the prior art, the present invention provides a sewage treatment device for environmental protection projects that realizes 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 to at least a certain extent.

[0009] The above technical objectives of the present invention are achieved through the following technical solutions: A sewage treatment device for environmental protection projects, comprising: Treatment box body; Two ladder parts arranged inside the treatment box body, a chemical agent port is opened at the top of the ladder part, and a channel a is formed between the two ladder parts; A coagulation plate arranged inside the treatment box body, a plurality of coagulation bosses are arranged on the top of the coagulation plate, and a channel b is formed between the coagulation plate and the ladder part; A flow guide plate a arranged inside the treatment box body, a channel c is formed between the flow guide plate a and the coagulation plate, and the coagulation plate is inclined; Two flow guide plates b arranged inside the treatment box body, a discharge channel is formed between the two flow guide plates b, and a sewage discharge channel is formed between the treatment box body and the flow guide plate b; A connecting shaft arranged inside the treatment box body, a plurality of filter meshes are arranged on the connecting shaft, the filter meshes can rotate along with the connecting shaft and slide on the surface of the flow guide plate b when rotating; A driving component arranged between the treatment box body and the connecting shaft for rotating the connecting shaft.

[0010] Preferably, a liquid inlet frame is connected to the top of the treatment box body, a liquid inlet pipe is communicated with the top of the liquid inlet frame, and two liquid distribution pipes are communicated with the bottom of the liquid inlet frame, and the two liquid distribution pipes respectively face the high positions of the two ladder parts.

[0011] Preferably, a liquid cavity and a gas cavity are formed inside the ladder part, the chemical agent port is opened at the vertical position of the first step of the ladder part and is communicated with the liquid cavity, a gas port is also opened at the top of the ladder part at the horizontal position between the first step and the second step of the ladder part, the gas cavity is communicated with an air inlet pipe, and the liquid cavity is communicated with a chemical agent inlet pipe.

[0012] Preferably, flow guide plates c are respectively connected to both sides inside the treatment box body, located at both ends of the coagulation plate and facing the flow guide plate a.

[0013] Preferably, the driving component includes a motor connected to the treatment box body, and a driving shaft of the motor is connected to the connecting shaft.

[0014] Preferably, a connecting frame is connected to the connecting shaft, a plurality of connecting bars are slidably connected to the connecting frame, the filter meshes are connected to the connecting bars, and a spring a is connected between the connecting bars and the connecting frame.

[0015] Preferably, avoidance openings for avoiding the connecting frame are respectively opened at the top of the flow guide plate c and the bottom of the coagulation plate.

[0016] Preferably, a groove is opened at the top of the coagulation plate, the coagulation bosses are rotatably connected to the groove, and a spring b is connected between the coagulation bosses and the groove.

[0017] Preferably, when the driving component rotates the connecting shaft by a preset angle, it can adjust the angle of the flocculating boss so that its upper surface is horizontal with the channel b; A limiting rod is connected to the bottom of the flocculating plate. 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 flocculating 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.

[0018] Preferably, one end of the connecting shaft extends to the outer wall of the treatment box body and is connected with a cam. The bottom of the bracket is rotatably connected with a connecting rod. A connecting opening is formed in the treatment box body. A connecting rod is slidably connected in the connecting opening. The connecting rod is rotatably connected with the other end of the connecting rod.

[0019] In summary, the present invention mainly has the following beneficial effects: In this application, high-efficiency flocculation, dynamic filtration and continuous sewage discharge are realized during the sewage treatment process, significantly improving the overall treatment efficiency.

[0020] In this application, the ladder part adopts 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 the 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 a turbulent flow area and a laminar flow area, effectively reducing the dispersion of particles, avoiding the damage of the flocs by high shear force, and significantly improving the initial flocculation efficiency.

[0021] In this application, the multiple flocculating bosses on the flocculating plate not only increase the contact area between the flocs and the sewage, but also enhance the further aggregation of the particles. The concave surfaces between the bosses form multiple buffer zones, reducing the rebound and dispersion of the particles during the sinking process, ensuring that larger flocs can sink faster downstream, and significantly improving the sedimentation efficiency. In addition, when the connecting shaft rotates to a preset angle, the flocculating boss can be adjusted to a horizontal state, forming a continuous smooth flow channel, ensuring a good flocculation effect while ensuring that the flocs can be discharged smoothly.

[0022] In this application, a dynamic filtration area is formed by the arranged filter screen, which can intercept the flocs passing through the guide plate a. As the filter screen rotates, it can also automatically remove the particles attached to the filter screen by centrifugal force and gravity.

[0023] In summary, through the preliminary flocculation of the ladder part, the multi-stage sedimentation of the flocculating boss and the coordinated cooperation of the dynamic filtration structure, high-efficiency solid-liquid separation is realized, the overall treatment efficiency is significantly improved, the cleaning frequency and maintenance cost of the equipment are reduced, and long-term stable operation is ensured. Brief Description of the Drawings

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is another schematic diagram of the overall structure of the present invention; Figure 3 is a sectional schematic diagram of the overall structure of the present invention; Figure 4 is a schematic diagram of the ladder part structure of the present invention; Figure 5 is a schematic diagram of the coagulation plate structure of the present invention; Figure 6 is a schematic diagram of the guide plate a of the present invention; Figure 7 is a schematic diagram of the connecting frame structure of the present invention; Figure 8 is another schematic diagram of the coagulation plate structure of the present invention; Figure 9 is a schematic diagram of the support structure of the present invention; Figure 10 is a schematic diagram of the coagulation boss structure of the present invention.

[0025] Reference Signs: 100, treatment box body; 101, ladder part; 102, medicine port; 103, channel a; 104, coagulation plate; 105, coagulation boss; 106, channel b; 107, guide plate a; 108, channel c; 109, guide plate b; 110, discharge channel; 111, sewage discharge channel; 112, connecting shaft; 113, filter screen; 200, liquid inlet frame; 201, liquid inlet pipe; 202, liquid distribution pipe; 203, liquid cavity; 204, gas cavity; 205, gas port; 206, gas inlet pipe; 207, medicine inlet pipe; 208, guide plate c; 300, motor; 301, connecting frame; 302, connecting bar; 303, spring a; 304, avoidance opening; 400, groove; 401, spring b; 402, limiting rod; 403, support; 404, adjusting rod; 405, spring c; 406, cam; 407, connecting rod; 408, connecting opening; 409, connecting rod. Detailed Embodiments

[0026] In the prior art, coagulants are widely used in sewage treatment, mainly for coagulating tiny suspended particles into larger flocs for subsequent sedimentation and filtration. The existing treatment devices usually adopt a batch treatment method of tank body + stirring, and its typical structure includes: Tank body: used to hold sewage and coagulant, usually in a closed or semi-closed structure.

[0027] Stirring device: Driven by a motor, the blades rotate to fully mix the medicament with the sewage, forming flocs.

[0028] Sedimentation and filtration: After stirring, the flocs are removed through sedimentation and filtration to achieve solid-liquid separation.

[0029] However, this treatment method has obvious limitations, mainly manifested in the difficulty of continuous treatment. During the high-speed stirring process, the initially formed flocs are easily damaged by shear force, resulting in the re-dispersion of the flocs, poor stability, and reduced sedimentation efficiency. At the same time, this batch treatment method requires waiting for the sewage and the medicament to be fully mixed before sedimentation and filtration. The treatment process is highly intermittent and difficult to meet the demand for continuously discharged sewage.

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Refer to Figures 1 - 10 , a sewage treatment device for environmental protection engineering, comprising: A treatment box body 100, both its bottom and top are provided with openings; A ladder part 101 provided in the treatment box body 100, fixed to the treatment box body 100. A medicament port 102 is opened at the top of the ladder part 101. There are two ladder parts 101, which are mirror-symmetrically arranged in the treatment box body 100. A channel a103 is formed between the two ladder parts 101; A coagulation plate 104 provided in the treatment box body 100, fixed to the treatment box body 100. The coagulation plate 104 is located at the bottom of the channel a103. A plurality of coagulation bosses 105 are provided on the top of the coagulation plate 104. A channel b106 is formed between the coagulation plate 104 and the ladder part 101; A guide plate a107 provided in the treatment box body 100, fixed to the treatment box body 100. There are two guide plates a107, which are respectively located at the lower positions at both ends of the coagulation plate 104, and a channel c108 is formed between the guide plate a107 and the coagulation plate 104. The coagulation plate 104 is inclined; A guide plate b109 provided in the treatment box body 100, fixed to the treatment box body 100. There are two guide plates b109, which are located at the lower positions of 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 treatment box body 100 and the guide plate b109; The connecting shaft 112 disposed within the processing box body 100, with a plurality of filter meshes 113 provided on the connecting shaft 112. The filter meshes 113 can rotate following the connecting shaft 112 and slide on the surface of the diversion plate b109 when rotating. A driving component disposed between the processing box body 100 and the connecting shaft 112 for rotating the connecting shaft 112. Wherein, when the driving component rotates the connecting shaft 112 by a preset angle, it can adjust the angle of the coagulation boss 105 to make its upper surface horizontal with the channel b106. With the above arrangement, during operation, sewage flows in from the heights of the two steps 101 at the top of the processing box body 100. There is a chemical agent port 102 at the top of the step 101. When the sewage passes through here, the flocculant is released from the chemical agent port 102 and is fully mixed with the sewage. The structure of the step 101 adopts a stepped design instead of a simple inclined plane, and this structure has obvious advantages in terms of the mixing effect and flocculation efficiency in sewage treatment. Specifically, the stepped structure can continuously interrupt the water flow when the sewage flows through, generating local turbulence, increasing the collision frequency between particles, and significantly improving the formation efficiency of flocs. Each step will guide the water flow to repeatedly accelerate and decelerate during the fall of the sewage, further enhancing the interaction between particles. Compared with a smooth ramp, the stepped structure is more likely to form turbulence, which helps the preliminary flocculation and aggregation of particles. In addition, the stepped structure can effectively reduce the impact force of particles in high-speed flow, avoiding the breakage of flocs caused by high shear force in a traditional stirring tank.

[0032] The preliminarily mixed sewage enters the coagulation plate 104 area through the channel a103. The coagulation plate 104 is located at the bottom of the channel a103, and its surface is covered with a plurality of coagulation bosses 105. These bosses not only increase the contact area between the flocs and the sewage but also promote the further aggregation of particles. When the flocs pass through the coagulation plate 104, they can effectively aggregate into larger particles, reducing the risk of dispersion and breakage of the flocs downstream. The coagulation plate 104 not only serves as the main area for the sedimentation of flocs but also forms a multi-stage sedimentation effect through the boss structure, enabling the flocs to gradually increase under the action of gravity and improving the sedimentation efficiency.

[0033] The multiple flocculation bosses 105 on the flocculation plate 104 can also form multiple buffer zones during the sedimentation process of flocs, reducing the rebound and dispersion of particles during the sinking process and further enhancing the particle aggregation effect. A concave surface is formed between each pair of flocculation bosses 105, and the concave surface can form a local low-speed zone, slowing down the water flow velocity, reducing the shear breakage of flocs, and ensuring that larger flocs can settle faster downstream. In addition, when the driving component rotates the connecting shaft 112 to a preset angle, the angle of the flocculation boss 105 is adjusted to a horizontal state. At this time, the surface of the flocculation plate 104 is overall flat, and the concave surfaces between every two adjacent flocculation bosses 105 are eliminated, forming a continuous smooth flow channel. In this state, the sewage can flow smoothly along the surface of the flocculation 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 area of the guide plate a107 and finally be filtered through the filter screen 113.

[0034] The angle adjustment of the flocculation boss 105 is determined by 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 undergo an angle adjustment to adjust the surface of the boss to a horizontal state, forming a continuous smooth flow channel. Then, after the connecting shaft 112 continues to rotate, the boss will return to its original inclined 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.

[0035] At this time, the filter screen 113 on the connecting shaft 112 starts to play a role. 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. During 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, avoiding the accumulation of flocs on the surface of the guide plate a107. The structure of multiple filter screens 113 ensures that when the connecting shaft 112 rotates, at least one filter screen 113 is always 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. When the filter screen 113 rotates away from the guide plate a107, the intercepted flocs will slide off the filter screen 113 under the combined action of centrifugal force and gravity and be discharged from the treatment box 100 through the sewage discharge channel 111 formed between the treatment box 100 and the guide plate b109. Since the filter screen 113 continuously slides on the surface of the guide plate b109, the automatic sewage cleaning function can be realized, reducing the accumulation of flocs on the filter screen 113, significantly reducing the probability of blockage of the filter screen 113, and extending the service life of the filter screen 113.

[0036] Finally, the sewage filtered by the filter screen 113 slowly flows towards the guide plate b109 located below it under the guidance of the guide plate a107, further settling the remaining fine particles, and then smoothly discharging through the discharge channel 110 from the treatment box 100, realizing continuous and efficient solid-liquid separation. This process ensures the integrity of the flocs during coagulation, sedimentation, filtration, and discharge, greatly improving the sewage treatment efficiency and significantly reducing the cleaning frequency and maintenance cost of the equipment.

[0037] In this application, efficient flocculation, dynamic filtration, and continuous sewage discharge are achieved during the sewage treatment process, significantly improving the overall treatment efficiency.

[0038] In this application, the ladder part 101 adopts a stepped design, continuously interrupting the water flow when the sewage flows through, generating local turbulence, enhancing the collision between particles, and significantly improving the initial aggregation effect of the 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 laminar flow areas, effectively reducing the dispersion of particles, avoiding the damage of the flocs by high shear force, and significantly improving the initial flocculation efficiency.

[0039] 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 the further aggregation of particles. The concave surfaces between the bosses form multi-level buffer zones, reducing the rebound and dispersion of particles during the sinking process, ensuring that larger flocs can settle faster downstream, and significantly improving the sedimentation efficiency. In addition, when the connecting shaft 112 rotates to a preset angle, the flocculation bosses 105 can be adjusted to a horizontal state, forming a continuous smooth flow channel, ensuring good flocculation while ensuring that the flocs can be smoothly discharged.

[0040] In this application, a dynamic filtration area is formed by the provided filter screen 113, which can intercept the flocs passing through the guide plate a107. As the filter screen 113 rotates, it can also automatically remove the particles attached to the filter screen 113 using centrifugal force and gravity.

[0041] In summary, through the preliminary flocculation of the ladder part 101, the multi-level sedimentation of the flocculation bosses 105, and the coordinated cooperation of the dynamic filtration structure, efficient solid-liquid separation is achieved, significantly improving the overall treatment efficiency, reducing the cleaning frequency and maintenance cost of the equipment, and ensuring long-term stable operation.

[0042] As a further solution of the present invention, a liquid inlet frame 200 is connected to the top of the treatment box 100. A liquid inlet pipe 201 is connected to the top of the liquid inlet frame 200, and two liquid distribution pipes 202 are connected to the bottom of the liquid inlet frame 200. The two liquid distribution pipes 202 are respectively oriented towards the high positions of the two ladder parts 101; In this embodiment, a liquid inlet frame 200 is connected to the top of the treatment box body 100. The cooperation between the liquid inlet frame 200 and the liquid outlet pipe can provide a stable sewage inlet path for the ladder part 101, ensuring that the sewage can be evenly distributed to the high positions of the two ladder parts 101. A liquid inlet pipe 201 is connected to the top of the liquid inlet frame 200. The liquid inlet pipe 201 is used for the input of an external sewage source, ensuring that the sewage can enter the treatment box body 100 stably and continuously. Two liquid distribution pipes 202 are connected to the bottom of the liquid inlet frame 200, and the outlets of the liquid distribution pipes 202 are respectively directed towards the high positions of the two ladder parts 101. Through this shunt setting, it can be ensured that the sewage entering the ladder part 101 can be evenly distributed on the two ladder parts 101.

[0043] As a further solution of the present invention, a liquid cavity 203 and a gas cavity 204 are formed inside the ladder part 101. The chemical agent port 102 is opened at the vertical position of the first step of the ladder part 101 and is communicated with the liquid cavity 203. A gas port 205 is also opened at the top of the ladder part 101, which is opened at the horizontal position of the first step and the second step of the ladder part 101. The gas cavity 204 is communicated with an air inlet pipe 206, and the liquid cavity 203 is communicated with a chemical agent inlet pipe 207; In this embodiment, a liquid cavity 203 and a gas cavity 204 are formed inside the ladder part 101. The liquid cavity 203 is used to transport the flocculant, and the gas cavity 204 is used to introduce gas to further enhance the mixing effect of the sewage and the chemical agent.

[0044] The chemical agent port 102 is opened at the vertical position of the first step of the ladder part 101 and is communicated with the liquid cavity 203. When the sewage slides down along the ladder part 101, the flocculant in the liquid cavity 203 can be continuously released through the chemical agent port 102 and fully mixed with the sewage. This vertically arranged chemical agent port 102 can effectively reduce the possibility of the sewage flowing into the chemical agent cavity, ensuring that the flocculant can be released stably and continuously. In addition, a gas port 205 is also opened at the top of the ladder part 101. The gas port 205 is arranged at the horizontal position of the first step and the second step and is communicated with the gas cavity 204. The gas cavity 204 is further communicated with the air inlet pipe 206. By continuously outputting gas into the air inlet cavity through the air inlet pipe 206 by an external setting, gas can be released during the sliding process of the sewage, increasing the water flow disturbance, further enhancing the collision between particles, and effectively improving the initial aggregation effect of the flocs.

[0045] As a further solution of the present invention, flow guiding plates c208 are respectively connected to both sides inside the treatment box body 100, located at both ends of the flocculation plate 104 and facing the flow guiding plate a107; In this embodiment, a deflector plate c208 is provided. Its main function is to prevent the liquid from flowing directly into the sewage discharge channel 111, ensuring that the sewage can flow stably along the deflector plate a107. Specifically, when the sewage is subjected to sedimentation treatment by the flocculation plate 104, the water flow will naturally spread to both sides. At this time, the deflector plate c208 can effectively guide the water flow towards the deflector plate a107, preventing the flocs from entering the sewage discharge channel 111 due to the spread of the water flow, reducing liquid loss, and ensuring the solid-liquid separation efficiency. At the same time, the inclined arrangement of the deflector plate c208 can also reduce the impact force of the water flow and reduce the impact of turbulence on the fragmentation of the flocs.

[0046] As a further aspect of the present invention, the driving component includes a motor 300 connected to the treatment box body 100, and the driving shaft of the motor 300 is connected to the connecting shaft 112; In this embodiment, the driving shaft of the motor 300 is connected to the connecting shaft 112. By the rotation of the motor 300, the filter screen 113 on the connecting shaft 112 is driven to rotate synchronously. This structural design driven by the motor 300 can not only stably control the rotation speed and angle of the connecting shaft 112, but also be flexibly adjusted according to different treatment requirements.

[0047] As a further aspect of the present invention, a connecting frame 301 is connected to the connecting shaft 112. A plurality of connecting bars 302 are slidably connected to the connecting frame 301. The filter screen 113 is connected to the connecting bars 302, and a spring a303 is connected between the connecting bars 302 and the connecting frame 301; 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 the spring a303. The main function of the spring a303 is to provide elastic support, ensuring that the filter screen 113 can generate an adaptive displacement when passing through the deflector plate a107, and avoiding hard interference between the filter screen 113 and the deflector plate a107 due to the inclination of the deflector plate a107. Specifically, when the connecting shaft 112 rotates, the filter screen 113 slides on the inclined surface of the deflector plate a107. Due to the elastic restoring force of the spring a303, it can ensure that the filter screen 113 can adapt to the inclined surfaces at different angles when contacting the deflector plate a107, thus achieving the purpose of dynamic filtration. In addition, during the contact and sliding process between the filter screen 113 and the deflector plate a107, the spring a303 is stretched due to the relative displacement of the filter screen 113. When the filter screen 113 leaves the deflector plate a107, the spring a303 will quickly rebound and restore the filter screen 113 to its initial position. At this time, the filtering surface of the filter screen 113 will face the sewage discharge channel 111, and the vibration of the spring a303 can shake off the flocs attached to the filter screen 113, further enhancing the self-cleaning function of the filter screen 113.

[0048] As a further solution of the present invention, avoidance openings 304 for avoiding the connecting frame 301 are respectively provided at the top of the flow guide plate c208 and the bottom of the flocculation plate 104; In this embodiment, in order to ensure that the connecting frame 301 can smoothly pass during the rotation of the connecting shaft 112 and avoid mechanical interference with the flow guide plate c208 and the flocculation plate 104, avoidance openings 304 are respectively provided at the top of the flow guide plate c208 and the bottom of the flocculation plate 104. The setting of the avoidance openings 304 can effectively prevent the connecting frame 301 from colliding or jamming with the flow 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 flow guide plate c208 and the flocculation plate 104.

[0049] As a further solution of the present invention, a groove 400 is provided at the top of the flocculation plate 104, the flocculation boss 105 is rotatably connected in the groove 400, and a spring b401 is connected between the flocculation boss 105 and the groove 400; In this embodiment, the setting of the groove 400 can not only provide an installation space for the flocculation boss 105, but also allow the flocculation boss 105 to adjust its angle under an external force. When the connecting shaft 112 rotates to a preset angle, the spring b401 can provide elastic support to ensure that the flocculation boss 105 can reset after the angle adjustment and protrude from the surface of the flocculation plate 104 again.

[0050] As a further solution of the present invention, a limiting rod 402 is connected to the bottom of the flocculation plate 104, 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 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; In this embodiment, the up and down displacement of the bracket 403 can be utilized to adjust the angle of the flocculation boss 105. Specifically, when the connecting shaft 112 rotates to a preset angle, when the bracket 403 moves downward, the adjusting rod 404 on the bracket 403 will move away from the flocculation boss 105. Since the potential energy of the spring c405 is greater than that of the spring b401, when the bracket 403 continues to move downward, the spring b401 releases its potential energy, forcing the flocculation boss 105 to rotate, making the top surface of the boss gradually tend to be horizontal. A continuous smooth flow channel is formed, eliminating the concave surface between the bosses, ensuring that the flocs can be discharged smoothly. When the connecting shaft 112 rotates away from the preset angle, the bracket 403 is forced by the force of the spring c405 to move upward for reset. At this time, the adjusting rod 404 presses against the bottom of the flocculation boss 105 again, forcing the flocculation boss 105 to rotate and stretching the spring b401 again, so that the boss can be restored to the original inclination angle and protrude from the surface of the flocculation plate 104 again, thereby achieving the purpose of intermittently adjusting the angle of the flocculation boss 105, so as to make the flocculation plate 104 present different working states of "the flocculation boss 105 protrudes to ensure the flocculation effect" and "when the flocculation boss 105 shrinks into the groove 400, a smooth channel is formed on the upper surface of the flocculation plate 104".

[0051] As a further solution of the present invention, one end of the connecting shaft 112 extends to the outer wall of the processing box body 100 and is connected with a cam 406. The bottom of the bracket 403 is rotatably connected with a connecting rod 407. A connecting opening 408 is formed on the processing box body 100. A connecting rod 409 is slidably connected in the connecting opening 408, and the connecting rod 409 is rotatably connected with the other end of the connecting rod 407; In this embodiment, when the connecting shaft 112 rotates to a preset angle, the cam 406 can push the connecting rod 409 and apply a 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 pulling force of the spring b401 is released, forcing the flocculation boss 105 to rotate to a horizontal state, forming a continuous smooth flow channel, eliminating the concave surface between the bosses, ensuring that the flocs can be discharged smoothly.

[0052] When the connecting shaft 112 leaves the preset angle, the thrust of the cam 406 disappears, and the potential energy of the spring c405 pushes the bracket 403 to reset upward, driving the adjusting rod 404 to press against the bottom of the flocculation boss 105 again, ensuring that the boss can quickly return to the original inclination angle and protrude from the surface of the flocculation plate 104 again, ensuring that the flocs can be fully aggregated during the next round of sedimentation. This linkage structure of the cam 406 - connecting rod 407 - bracket 403 can quickly and regularly make the flocculation boss 105 present different angles, so as to make the flocculation plate 104 present different working states.

[0053] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment device for environmental protection engineering, characterized in that Comprising: A processing box body (100); Two ladder parts (101) arranged inside the processing box body (100), a chemical agent port (102) is opened at the top of the ladder part (101), and a channel a (103) is formed between the two ladder parts (101); A flocculation plate (104) arranged inside the processing box body (100), a plurality of flocculation bosses (105) are arranged on the top of the flocculation plate (104), and a channel b (106) is formed between the flocculation plate (104) and the ladder part (101); A diversion plate a (107) arranged inside the processing box body (100), a channel c (108) is formed between the diversion plate a (107) and the flocculation plate (104), and the flocculation plate (104) is inclined; Two diversion plates b (109) arranged inside the processing box body (100), a discharge channel (110) is formed between the two diversion plates b (109), and a sewage discharge channel (111) is formed between the processing box body (100) and the diversion plate b (109); A connecting shaft (112) arranged inside the processing box body (100), a plurality of filter meshes (113) are arranged on the connecting shaft (112), the filter meshes (113) can rotate along with the connecting shaft (112), and when rotating, pass through the diversion plate b (109) and slide on the surface of the diversion plate b (109); A driving component arranged between the processing box body (100) and the connecting shaft (112) for rotating the connecting shaft (112).

2. The sewage treatment device for environmental protection engineering according to claim 1, characterized in that, The top of the processing box body (100) is connected with a liquid inlet frame (200), the top of the liquid inlet frame (200) is communicated with a liquid inlet pipe (201), the bottom of the liquid inlet frame (200) is communicated with two liquid distribution pipes (202), and the two liquid distribution pipes (202) respectively face the high positions of the two ladder parts (101).

3. The 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 part (101), the chemical agent port (102) is opened at the vertical position of the first step of the ladder part (101) and is communicated with the liquid cavity (203), a gas port (205) is further opened at the horizontal position of the first step and the second step of the ladder part (101), the gas cavity (204) is communicated with an air inlet pipe (206), and the liquid cavity (203) is communicated with a chemical agent inlet pipe (207).

4. An apparatus for treating sewage used in environmental protection projects according to claim 1, characterized in that, Two diversion plates c (208) are respectively connected to both sides inside the processing box body (100), located at both ends of the flocculation plate (104) and facing the diversion plate a (107).

5. An apparatus for treating sewage used in environmental protection projects according to claim 1, characterized in that, The driving component includes a motor (300) connected to the processing box body (100), and the driving shaft of the motor (300) is connected to the connecting shaft (112).

6. An apparatus for treating sewage in an environmental protection project according to claim 4, characterized in that, A connecting frame (301) is connected to the connecting shaft (112). A plurality of connecting bars (302) are slidably connected to the connecting frame (301). The filter screen (113) is connected to the connecting bars (302). A spring a (303) is connected between the connecting bars (302) and the connecting frame (301).

7. The sewage treatment device for environmental protection projects according to claim 6, characterized in that, Avoidance openings (304) for avoiding the connecting frame (301) are respectively formed at the top of the flow guiding plate c (208) and the bottom of the flocculation plate (104).

8. An apparatus for treating sewage in an environmental protection project according to claim 1, characterized in that, A groove (400) is formed at the top of the flocculation plate (104). The flocculation boss (105) is rotatably connected in the groove (400), and a spring b (401) is connected between the flocculation boss (105) and the groove (400).

9. An environmental protection engineering sewage treatment device according to claim 8, characterized in that, When the driving component rotates the connecting shaft (112) by a preset angle, the angle of the flocculation boss (105) can be adjusted so that its upper surface is horizontal with the channel b (106). A limiting rod (402) is connected to the bottom of the flocculation plate (104). 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 rods (404) extends into the groove (400) and contacts the bottom of the flocculation boss (105). A spring c (405) is connected between the bracket (403) and the limiting rod (402). The potential energy of the spring c (405) is greater than that of the spring b (401).

10. An apparatus for treating sewage used in environmental protection engineering according to claim 9, characterized in that, One end of the connecting shaft (112) extends to the outer wall of the processing box body (100) and is connected with a cam (406). The bottom of the bracket (403) is rotatably connected with a connecting rod (407). A connecting opening (408) is formed in the processing box body (100). A connecting rod (409) is slidably connected in the connecting opening (408). The connecting rod (409) is rotatably connected with the other end of the connecting rod (407).

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