A wastewater comprehensive treatment device with a pretreatment device

Abstract

The present invention relates to the field of sewage treatment, and specifically relates to a comprehensive wastewater treatment device with a pretreatment device, which includes a reaction tank, a dehydration device, a magnetic separation device, and a swing mechanism; the reaction tank is used for quickly mixing magnetic powder and sewage; the dehydration device includes a dehydration tank and a transfer hopper, the transfer hopper is rotatably arranged on the dehydration tank, and filter gauze belts are provided on both sides of the transfer hopper; the swing mechanism is arranged on the dehydration tank, and the swing mechanism is used to control the reciprocating swing of the transfer hopper; in the working state, the sewage is mixed with the magnetic powder in the reaction tank, and then undergoes pre-dehydration treatment through the swinging transfer hopper and then enters the magnetic separation device. The present invention realizes the function of pre-dehydrating the sewage before magnetic separation, thereby reducing the water content of the sewage before magnetic separation, achieving the effects of reducing the fluidity of the sewage and reducing the loss of magnetic powder, and solving the problem that the high water content of the sludge affects the magnetic powder recovery during the transportation process.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment, and more specifically, to a comprehensive wastewater treatment device with a pretreatment device. Background Art

[0002] In industrial wastewater treatment, for fine particles and substances that are difficult to precipitate, this component is usually used to combine with pollutants to form magnetic flocs, thereby accelerating the sedimentation speed and effectively removing fine suspended solids, colloids, heavy metal ions, organic substances, etc. that are difficult to treat by traditional methods. However, when the sludge is discharged from the sedimentation tank, the water content is too high, resulting in some magnetic powder being washed away by the water flow during transportation and unable to be effectively separated and recovered. Moreover, when the magnetic powder is pumped by a pump, its high hardness and high density characteristics will accelerate the wear of the pump body.

[0003] For this reason, Chinese Patent with the authorization announcement number CN117125865B discloses a comprehensive wastewater treatment device and method for a high-organic matter park. When a sludge discharge mechanism is assembled in the clarification tank and the driving component drives the sludge scraping component to scrape the sludge, the sludge discharge component can work synchronously. By moving the piston up and down in the inner barrel body, the sludge is pumped into the outer barrel body through the rubber cup and discharged through the separation plate, so that the sludge is squeezed and scattered onto the magnetic suction plate, allowing the sludge to fully contact the hopper plate and fully adsorb the magnetic powder in the sludge.

[0004] Existing equipment mainly improves the magnetic powder recovery rate through the adsorption and scraping of the magnetic suction plate, thereby reducing the loss of magnetic powder. However, the water content of the sludge composed of magnetic flocs is still relatively high during transportation, resulting in strong fluidity of the sludge. During magnetic separation treatment, more magnetic powder will still be washed away by the water flow, reducing the magnetic powder recovery rate. Summary of the Invention

[0005] In view of the above problems, a comprehensive wastewater treatment device with a pretreatment device is provided. By means of a reaction tank, a dehydration device, a magnetic separation device, and a swinging mechanism, the problem that the water content of the sludge affects the magnetic powder recovery during transportation is solved.

[0006] To solve the problems of the existing technology, the present invention provides a comprehensive wastewater treatment device with a pretreatment device, including a reaction tank, a dehydration device, a magnetic separation device, and a swinging mechanism; the reaction tank is used for quickly mixing magnetic powder and sewage; the dehydration device includes a dehydration tank and a transfer hopper, the transfer hopper is rotatably arranged on the dehydration tank, and filter gauze belts are arranged on both sides of the transfer hopper; the magnetic separation device is used for separating magnetic flocs in the sewage; the swinging mechanism is arranged on the dehydration tank, and the swinging mechanism is used to control the reciprocating swing of the transfer hopper; in the working state, the sewage is mixed with magnetic powder in the reaction tank, and then enters the magnetic separation device after pre-dehydration treatment through the swinging transfer hopper.

[0007] Preferably, the swing mechanism includes a control component and a rotary drive component; the control component is used to control the reciprocating swing of the transfer hopper; the rotary drive component is used to drive the control component.

[0008] Preferably, a movable rod is provided on the dehydration tank; and an auxiliary control mechanism for controlling the swing of the movable rod is provided on the dehydration tank.

[0009] Preferably, the auxiliary control mechanism includes a mounting shaft and a first transmission component; a first hinge seat is provided on the transfer hopper, a connecting shaft is sleeved on the first hinge seat, and the first hinge seat is hinged to the dehydration tank through the connecting shaft; the mounting shaft is rotatably arranged on the dehydration tank, a connecting seat is sleeved on the mounting shaft, and the movable rod is connected to the connecting seat; the mounting shaft is in transmission connection with the connecting shaft through the first transmission component.

[0010] Preferably, a counterweight is connected to the connecting seat.

[0011] Preferably, a mounting rod is provided on the dehydration tank; during the swing of the connecting seat, the counterweight intermittently collides with the mounting rod.

[0012] Preferably, the first transmission component includes a mounting frame, a first rotating shaft and a toothed ring; the mounting frame is arranged on the dehydration tank; the first rotating shaft is rotatably arranged on the mounting frame, a rotating gear is sleeved on the first rotating shaft, and the first rotating shaft is in transmission connection with the mounting shaft; the toothed ring is sleeved on the connecting shaft, and the rotating gear is meshed with the toothed ring.

[0013] Preferably, at least two groups of control components are provided, and the control components are arranged in the dehydration tank; a second transmission component is further arranged in the dehydration tank, and multiple control components are in transmission connection with the rotary drive component through the second transmission component.

[0014] Preferably, the control component includes a second hinge seat, a mounting disc and a connecting rod; the second hinge seat is arranged on the transfer hopper; the mounting disc is rotatably arranged on the dehydration tank, a fixed shaft is eccentrically arranged on the mounting disc, and the mounting disc is in transmission connection with the rotary drive component; two ends of the connecting rod are respectively hinged to the second hinge seat and the fixed shaft.

[0015] Preferably, vertical rods for dispersing sludge are provided on the transfer hopper.

[0016] The beneficial effects of the present invention compared with the prior art are:

[0017] 1. The present invention realizes the function of pre-dewatering sewage before magnetic separation through a reaction tank, a dewatering device, a magnetic separation device, and a swinging mechanism, thereby reducing the water content of the sewage before magnetic separation, converting the sludge from a liquid state to a semi-solid state, reducing the hydraulic load of the subsequent magnetic separation equipment, and avoiding the magnetic powder from being washed away during transmission. It achieves the effects of reducing the fluidity of the sewage and reducing the loss of magnetic powder, and solves the problem that the high water content of the sludge affects the magnetic powder recovery during the transportation process. The water content of the sludge is reduced to about 92%. The sludge enters the magnetic separation device through a transfer hopper to recover the magnetic powder in the sludge. After the water content of the sludge is reduced, the loss of magnetic powder due to hydraulic erosion is reduced, and the magnetic separation efficiency is improved.

[0018] 2. The present invention realizes the function of controlling the swinging of the transfer hopper through a control component and a rotary drive component. By swinging, the sludge periodically moves towards both sides of the transfer hopper, achieving the effect of dispersing the sludge, improving the dehydration uniformity. After the sludge collides with the filter belt, the filter belt is used to dehydrate the sludge.

[0019] 3. The present invention realizes the function of dispersing the pre-dewatered sludge through a movable rod and an auxiliary control mechanism. After the sludge undergoes pre-dewatering treatment, the swinging of the movable rod can perform low-shear force treatment on the sludge, achieving the effect of dispersing the sludge while protecting the flocs and avoiding the sludge from agglomerating due to dehydration. The sludge is prone to form large blocks after pre-dewatering, with magnetic powder and pollutants wrapped inside. After being dispersed, the lumps can be broken, the internal flocs can be released, and the magnetic particles can be fully exposed, improving the magnetic separation efficiency. When agglomerated, the outer sludge hinders the magnetic field from capturing the internal magnetic powder. After being dispersed, the combination of magnetic powder and pollutants is dispersed, and the magnetic field action area increases, thereby improving the magnetic powder recovery rate. During the process of the sludge generating a directional displacement in the transfer hopper under the action of the swinging mechanism, the auxiliary control mechanism performs a crushing treatment on the accumulated sludge through the swinging of the movable rod. While the movable rod efficiently disintegrates the sludge agglomerates, it protects the magnetic flocs through the low shear force provided by it, significantly reducing the unnecessary dissociation loss of magnetic powder from the floc skeleton. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional schematic diagram of a wastewater comprehensive treatment device with a pretreatment device according to the present invention.

[0021] Figure 2 is a three-dimensional schematic diagram of the dewatering device, the swinging mechanism, and the auxiliary control mechanism in a wastewater comprehensive treatment device with a pretreatment device according to the present invention.

[0022] Figure 3 is a first-perspective three-dimensional schematic diagram of the transfer hopper, the swinging mechanism, and the auxiliary control mechanism in a wastewater comprehensive treatment device with a pretreatment device according to the present invention.

[0023] Figure 4It is a three-dimensional schematic diagram of the second perspective of the transfer hopper, swing mechanism and auxiliary control mechanism in a wastewater comprehensive treatment device with a pretreatment device according to the present invention.

[0024] Figure 5 It is a three-dimensional schematic diagram of the movable rod and the auxiliary control mechanism in a working state in a wastewater comprehensive treatment device with a pretreatment device according to the present invention.

[0025] Figure 6 It is a three-dimensional schematic diagram of the movable rod and the auxiliary control mechanism in a reset state in a wastewater comprehensive treatment device with a pretreatment device according to the present invention.

[0026] Figure 7 It is a three-dimensional schematic diagram of the movable rod and the first transmission component in a wastewater comprehensive treatment device with a pretreatment device according to the present invention.

[0027] Figure 8 It is a three-dimensional schematic diagram of the swing mechanism in a wastewater comprehensive treatment device with a pretreatment device according to the present invention.

[0028] Figure 9 It is a three-dimensional schematic diagram of a single-group control component and a second transmission component in a wastewater comprehensive treatment device with a pretreatment device according to the present invention.

[0029] Figure 10 It is a front view of the cooperation between the transfer hopper and the movable rod in a wastewater comprehensive treatment device with a pretreatment device according to the present invention.

[0030] The reference numerals in the figure are: 1, reaction tank; 2, dehydration device; 21, dehydration tank; 211, movable rod; 212, mounting rod; 22, transfer hopper; 221, filter gauze belt; 222, first hinge seat; 2221, connecting shaft; 223, vertical rod; 3, magnetic separation device; 4, swing mechanism; 41, control component; 411, second hinge seat; 412, mounting plate; 4121, fixed shaft; 413, connecting rod; 414, cross plate; 415, support; 4151, tension spring; 42, rotation drive component; 421, rotation driver; 422, main shaft; 423, first belt pulley; 424, second belt pulley; 425, transmission belt; 43, second transmission component; 431, second rotating shaft; 432, third belt pulley; 433, second synchronous belt; 5, auxiliary control mechanism; 51, mounting shaft; 511, connecting seat; 512, counterweight; 52, first transmission component; 521, mounting frame; 522, first rotating shaft; 5221, rotating gear; 523, toothed ring; 524, fourth belt pulley; 525, first synchronous belt. Detailed implementation manners

[0031] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figures 1-3 : A comprehensive wastewater treatment device with pretreatment equipment, including a reaction tank 1, a dehydration device 2, a magnetic separation device 3 and a swinging mechanism 4; the reaction tank 1 is used to quickly mix magnetic powder and sewage; the dehydration device 2 includes a dehydration tank 21 and a transmission bucket 22, the transmission bucket 22 is rotatably set on the dehydration tank 21, and filter belts 221 are provided on both sides of the transmission bucket 22; the magnetic separation device 3 is used to separate magnetic flocs in sewage; the swinging mechanism 4 is set on the dehydration tank 21, and the swinging mechanism 4 is used to control the reciprocating swing of the transmission bucket 22; in the working state, the sewage is mixed with the magnetic powder in the reaction tank 1, and then enters the magnetic separation device 3 after pre-dehydration treatment through the swinging transmission bucket 22.

[0033] The present invention utilizes a reaction tank 1, a dehydration device 2, a magnetic separation device 3, and an oscillating mechanism 4 to pre-dehydrate wastewater prior to magnetic separation. This reduces the water content of the wastewater before magnetic separation, converting the sludge from a liquid state to a semi-solid state, reducing the hydraulic load on the subsequent magnetic separation equipment and preventing the magnetic powder from being dispersed during transport. This reduces the fluidity of the wastewater and the loss of magnetic powder, resolving the issue of high water content affecting magnetic powder recovery during sludge transport. The transfer hopper 22 is tilted. Once the sludge is transferred to the transfer hopper 22, it flows along the hopper 22 under gravity and flows from the output end of the hopper 22 into the magnetic separation device 3. When treating industrial wastewater, suspended matter is first removed through a screen or grit chamber to prevent blockage during wastewater transport. Next, an acid or base is added to the reaction tank 1 to adjust the wastewater's pH to a range of 6-9. After adjustment, a coagulant is added to neutralize the colloid charge, and a coagulant aid is added to enhance floc bridging before the magnetic powder is added. Rapid stirring is performed to evenly disperse the reagent, followed by slow stirring to promote the formation of magnetic flocs. After the magnetic powder is fully combined with the pollutants, the concentration of suspended matter in the sewage is significantly increased, forming high-density magnetic flocs. At this time, the sludge is in a semi-fluid state with a moisture content of approximately 95%-99%. The semi-fluid sludge still has a certain fluidity and is transported to the transfer bucket 22 via a screw conveyor or pneumatic pipe. The swing mechanism 4 is started, and the swing mechanism 4 controls the transfer bucket 22 to swing back and forth on the dewatering tank 21. When the sludge is swung to the filter belt 221, the water is thrown out, and the filtered sewage is collected by the dewatering tank 21, reducing the water content of the sludge to about 92%. The sludge enters the magnetic separation device 3 through the transfer bucket 22 to recover the magnetic powder in the sludge. After the water content of the sludge is reduced, the hydraulic scouring loss of the magnetic powder is reduced, thereby improving the magnetic separation efficiency.

[0034] Reference Figures 2-4:The swing mechanism 4 includes a control component 41 and a rotary drive component 42; the control component 41 is used to control the reciprocating swing of the transfer hopper 22; the rotary drive component 42 is used to drive the control component 41.

[0035] The present invention realizes the function of controlling the swing of the transfer hopper 22 through the control component 41 and the rotary drive component 42. Through the swing, the sludge periodically moves to both sides of the transfer hopper 22, achieving the effect of dispersing the sludge, improving the dehydration uniformity. After the sludge collides with the filter screen belt 221, the filter screen belt 221 dehydrates the sludge. The rotary drive component 42 includes a rotary driver 421, a main shaft 422, a first belt pulley 423, a second belt pulley 424 and a transmission belt 425. The rotary driver 421 is installed on the dehydration tank 21. The main shaft 422 is rotatably arranged on the dehydration tank 21, and the main shaft 422 is in transmission connection with the control component 41. The first belt pulley 423 and the second belt pulley 424 are respectively sleeved on the drive end of the rotary driver 421 and the main shaft 422, and the transmission belt 425 connects the first belt pulley 423 and the second belt pulley 424. In the working state, the operator starts the rotary driver 421. The rotary driver 421 drives the main shaft 422 to rotate through the first belt pulley 423, the second belt pulley 424 and the transmission belt 425. The main shaft 422 drives the control component 41 in transmission connection with it. The control component 41 transmits the torque to the transfer hopper 22 to control the swing of the transfer hopper 22 and perform pre-dehydration treatment on the sludge on the transfer hopper 22.

[0036] Refer to Figure 2 and Figure 3 :A movable rod 211 is provided on the dehydration tank 21; and an auxiliary control mechanism 5 for controlling the swing of the movable rod 211 is provided on the dehydration tank 21.

[0037] The present invention realizes the function of dispersing pre-dewatered sludge through the movable rod 211 and the auxiliary control mechanism 5. After the sludge is pre-dewatered, the swinging of the movable rod 211 can perform low-shear force treatment on the sludge, achieving the effect of dispersing the sludge while protecting the flocs and avoiding the agglomeration of the sludge due to dehydration. The sludge is likely to form large chunks after pre-dewatering, with magnetic powder and pollutants wrapped inside. After being dispersed, the agglomerates can be broken, the internal flocs can be released, and the magnetic particles can be fully exposed, improving the magnetic separation efficiency. When agglomerated, the outer sludge hinders the capture of the internal magnetic powder by the magnetic field. After being dispersed, the combination of magnetic powder and pollutants is scattered, increasing the magnetic field action area and thus improving the magnetic powder recovery rate. During the process of the sludge generating a directional displacement in the transfer hopper 22 under the action of the swinging mechanism 4, the auxiliary control mechanism 5 performs crushing treatment on the accumulated sludge through the swinging of the movable rod 211. While efficiently disintegrating the sludge agglomerates, the movable rod 211 protects the magnetic flocs with the low shear force it provides, significantly reducing the unnecessary dissociation loss of magnetic powder from the floc skeleton. When the sludge swings on the transfer hopper 22, the auxiliary control mechanism 5 controls the swinging of the movable rod 211 to disperse the sludge. And the swinging of the movable rod 211 can protect the structural integrity of the magnetic flocs and reduce the dissociation of magnetic powder.

[0038] Refer to Figure 3 and Figure 5 : The auxiliary control mechanism 5 includes a mounting shaft 51 and a first transmission assembly 52; a first hinge seat 222 is provided on the transfer hopper 22, a connecting shaft 2221 is sleeved on the first hinge seat 222, and the first hinge seat 222 is hinged to the dehydration tank 21 through the connecting shaft 2221; the mounting shaft 51 is rotatably arranged on the dehydration tank 21, a connecting seat 511 is sleeved on the mounting shaft 51, and the movable rod 211 is connected to the connecting seat 511; the mounting shaft 51 is in transmission connection with the connecting shaft 2221 through the first transmission assembly 52.

[0039] The present invention realizes the function of driving the swing of the movable rod 211 when the transfer hopper 22 swings through the installation shaft 51, the first transmission component 52 and the connecting shaft 2221. Through the setting of the first transmission component 52, when the rotation driving component 42 drives the control component 41 and the control component 41 controls the swing of the transfer hopper 22, the transfer hopper 22 drives the connecting shaft 2221 to rotate relative to the dewatering tank 21. The movable rod 211 is located at the output end of the transfer hopper 22. During the periodic swing of the transfer hopper 22 caused by the rotation driving component 42 driving the control component 41, the connecting shaft 2221 at the output end of the transfer hopper 22 generates a rotational displacement with the swing. This rotation amount is transmitted to the installation shaft 51 through the first transmission component 52, driving the installation shaft 51 to rotate synchronously and driving the connecting seat 511 and the movable rod 211 to form a swing sweeping action at a corresponding angle. When the sludge after pre-dewatering slides from the end of the transfer hopper 22 to the magnetic separation device 3, the regular swing of the movable rod 211 not only exerts a directional shear breaking force on the falling sludge to disintegrate the agglomerates, but also forms a continuous material discretization treatment through the dynamic matching of the swing frequency and the discharging speed of the transfer hopper 22. This collaborative mechanism effectively destroys the water film on the surface of the sludge and releases the wrapped moisture while ensuring the stability of the magnetic powder combination inside the magnetic flocs, making the sludge entering the magnetic separation device 3 in a loose and porous state. This not only improves the capture efficiency of the magnetic separation process for magnetic particles, but also avoids the problem of attenuation of the separation efficiency caused by the internal magnetic circuit shielding effect of the agglomerated sludge during the magnetic separation process through the control of the material fluidization.

[0040] Refer to Figure 5 : A counterweight 512 is connected to the connecting seat 511.

[0041] The present invention realizes the function of increasing the overall mass of the connecting seat 511 through the counterweight 512, thereby achieving the function of improving the overall stability of the connecting seat 511, and avoiding the situation where the sludge applies pressure to the movable rod 211 when contacting the movable rod 211 and pushes the movable rod 211 to rotate. If the movable rod 211 rotates under the extrusion of the sludge, it will apply a torque to the connecting shaft 2221 through the first transmission assembly 52, thereby increasing the resistance received by the rotation of the transfer hopper 22 and affecting the swing stability of the transfer hopper 22. Therefore, a counterweight 512 is provided on the connecting seat 511, and the counterweight 512 is located near the bottom end of the connecting seat 511. The movable rod 211 extends towards the upper end of the transfer hopper 22. During the process of the connecting shaft 2221 transmitting the rotational torque to the mounting shaft 51 through the first transmission assembly 52, the mounting shaft 51 drives the connecting seat 511 to generate a directional deflection through the synchronous swing mechanism 4. The connecting seat 511 drives the movable rod 211 and the counterweight 512 to form a centrifugal motion with a constrained path. The counterweight 512 is always maintained below the bottom reference plane of the transfer hopper 22 through the center-of-gravity lowering design during the swing period, and forms a reverse stabilizing torque while releasing the impact kinetic energy based on the principle of inertial dynamic balance. When the connecting shaft 2221 transmits the torque to the mounting shaft 51 through the first transmission assembly 52, the mounting shaft 51 drives the connecting seat 511 to swing, the connecting seat 511 drives the movable rod 211 and the counterweight 512 to rotate, and the counterweight 512 is always below the transfer hopper 22 during the swing process, thereby stabilizing the position of the connecting seat 511 and avoiding the swing of the movable rod 211 being affected by the sludge.

[0042] Refer to Figure 5 and Figure 6 : An installation rod 212 is provided on the dehydration tank 21; during the swing of the connecting seat 511, the counterweight 512 intermittently collides with the installation rod 212.

[0043] The present invention achieves vibration control of the transfer bucket 22 through the coordination of the mounting rod 212 and the counterweight 512. Two mounting rods 212 are provided, one on each side of the connecting base 511. When the counterweight 512 swings toward either side, it strikes the mounting rods 212 on either side. When the swing mechanism 4 controls the transfer bucket 22 to swing, the transfer bucket 22 rotates the connecting shaft 2221. The connecting shaft 2221, via the first transmission assembly 52, drives the mounting shaft 51 to rotate, which in turn drives the connecting base 511 to swing. The connecting base 511, in turn, drives the movable rod 211 and the counterweight 512 to rotate. When the connecting seat 511 swings, the movable rod 211 is pulled to drive the counterweight block 512 to generate centrifugal motion. When the counterweight block 512 hits the mounting rods 212 on both sides under the action of inertia, an impact pulse is formed. The pulse vibration forms a high-frequency vibration wave through the rigid connection between the mounting rod 212 and the transmission bucket 22, which effectively destroys the adhesion state of the sludge on the surface of the transmission bucket 22 and the filter belt 221, and promotes the viscous material to separate from the carrier under the action of vibration stripping. Through the coordinated effect of the inclination angle of the transmission bucket 22 and the vibration amplitude, it is ensured that the separated material slides into the magnetic separation device 3 along the preset trajectory to complete subsequent processing.

[0044] Reference Figures 5-7 : The first transmission assembly 52 includes a mounting frame 521, a first rotating shaft 522 and a gear ring 523; the mounting frame 521 is set on the dehydration tank 21; the first rotating shaft 522 is rotatably set on the mounting frame 521, and a rotating gear 5221 is sleeved on the first rotating shaft 522, and the first rotating shaft 522 is transmission-connected to the mounting shaft 51; the gear ring 523 is sleeved on the connecting shaft 2221, and the rotating gear 5221 is meshed with the gear ring 523.

[0045] The present invention utilizes the mounting bracket 521, the first rotating shaft 522, and the gear ring 523 to achieve the function of driving the mounting shaft 51 to rotate in the opposite direction when the connecting shaft 2221 rotates. A fourth pulley 524 is sleeved on both the first rotating shaft 522 and the mounting shaft 51. A first synchronous belt 525 is sleeved on the fourth pulley 524, connecting the two fourth pulleys 524. When the swing mechanism 4 drives the transfer bucket 22 to swing, the transfer bucket 22 rotates the connecting shaft 2221. The rotation of the connecting shaft 2221 in turn rotates the gear ring 523, which in turn drives the meshed rotating gear 5221 to rotate in the opposite direction. The rotating gear 5221 then rotates the first rotating shaft 522. The first rotating shaft 522, via the fourth pulley 524 and the first synchronous belt 525, drives the mounting shaft 51 to rotate. The mounting shaft 51 then rotates the connecting base 511 and the movable rod 211. After undergoing pre-dehydration treatment in the transfer bucket 22, the sludge enters the magnetic separation device 3 from the end of the transfer bucket 22. When the sludge leaves the transfer bucket 22 , it contacts the movable rod 211 , and the sludge is broken up by the swing of the movable rod 211 .

[0046] Reference Figure 3, Figure 8 and Figure 9 : There are at least two sets of control components 41, and the control components 41 are arranged in the dehydration tank 21; a second transmission component 43 is also arranged in the dehydration tank 21, and multiple control components 41 are drivingly connected to the rotary drive component 42 through the second transmission component 43.

[0047] The present invention realizes the function of synchronously driving multiple control components 41 through the second transmission component 43. The second transmission component 43 includes a second rotating shaft 431, a third belt pulley 432 and a second synchronous belt 433. The second rotating shaft 431 is rotatably arranged on the dehydration tank 21. There are two third belt pulleys 432, and the two third belt pulleys 432 are respectively sleeved on the main shaft 422 and the second rotating shaft 431, and the second synchronous belt 433 connects the two third belt pulleys 432. The second rotating shaft 431 is drivingly connected to the control component 41. The length of the transfer hopper 22 is relatively long, and the rotary drive component 42 drives the transfer hopper 22 to swing through the control component 41. Once the transfer hopper 22 is offset due to uneven force during swinging, it will be damaged under irregular swinging. Therefore, it is very difficult to ensure the stability of the transfer hopper 22 when only one set of control components 41 drives the transfer hopper 22. For this reason, multiple sets of control components 41 are arranged in the dehydration tank 21, and the multiple sets of control components 41 are equidistantly distributed along the length direction of the transfer hopper 22. When the rotary driver 421 drives the main shaft 422 to rotate, the main shaft 422 drives the second rotating shaft 431 to rotate at the same speed through the third belt pulley 432 and the second synchronous belt 433. The second rotating shaft 431 evenly distributes the power to each control component 41, so that the transfer hopper 22 maintains the symmetry of multi-point force during swinging. This design effectively offsets the local stress concentration problem caused by the large length of the transfer hopper 22 through the coordinated driving of multiple sets of control components 41, avoids the risk of offset or distortion of the transfer hopper 22 caused by uneven sludge distribution during single-point driving, and at the same time uses the synchronous transmission characteristic of the second transmission component 43 to ensure the phase consistency of the actions of each control component 41, so as to maintain the stability of the swinging trajectory of the transfer hopper 22 and the durability of the mechanical structure under complex load conditions.

[0048] Referring to Figure 8 and Figure 9 : The control component 41 includes a second hinge seat 411, a mounting plate 412 and a connecting rod 413; the second hinge seat 411 is arranged on the transfer hopper 22; the mounting plate 412 is rotatably arranged on the dehydration tank 21, and a fixed shaft 4121 is eccentrically arranged on the mounting plate 412. The mounting plate 412 is drivingly connected to the rotary drive component 42; both ends of the connecting rod 413 are hinged to the second hinge seat 411 and the fixed shaft 4121 respectively.

[0049] The present invention realizes the function of controlling the swing of the transfer hopper 22 through the second hinge seat 411, the mounting plate 412 and the connecting rod 413. A cross plate 414 and a support 415 are provided in the dewatering tank 21. A tension spring 4151 is provided on the support 415, and the two ends of the tension spring 4151 are respectively connected to the support 415 and the second hinge seat 411. The second rotating shaft 431 is rotatably arranged on the cross plate 414, and the mounting plate 412 is sleeved on the second rotating shaft 431. A tension spring 4151, a connecting rod 413 and a mounting plate 412 are respectively arranged on both sides of each second hinge seat 411. The cross plate 414 and the support 415 arranged in the dewatering tank 21 form a support frame, and the tension spring 4151 on the support 415 forms an elastic traction system by connecting the support 415 and the second hinge seat 411 at both ends respectively. When the rotary driver 421 is started, the main shaft 422 drives the second rotating shaft 431 to rotate through the second synchronous belt 433. The second rotating shaft 431 drives the mounting plate 412 to rotate synchronously. The mounting plate 412 pushes the second hinge seat 411 to generate displacement through the connecting rod 413, thereby driving the transfer hopper 22 to complete the tilting action. During the continuous rotation of the mounting plate 412, the traction force of the connecting rod 413 and the elastic retraction force of the tension spring 4151 form an alternating acting force, so that the transfer hopper 22 realizes continuous reciprocating swing within the controlled range. This design realizes the two-way force balance through the transmission cooperation between the third pulley 432 and the main shaft 422, combined with the symmetrically distributed tension spring 4151 and the connecting rod 413 assembly, which not only ensures the precise controllability of the swing angle of the transfer hopper 22, but also can absorb the motion impact by the elastic deformation of the tension spring 4151, improving the coordination and stability of the mechanical actions during the dewatering operation. When the rotary driver 421 is started, it drives the main shaft 422 to rotate. The main shaft 422 drives the second rotating shaft 431 to rotate through the third pulley 432 and the second synchronous belt 433. The second rotating shaft 431 drives the mounting plate 412 to rotate. The mounting plate 412 pulls the second hinge seat 411 through the connecting rod 413, and then pulls the transfer hopper 22 to rotate. The tension spring 4151 elongates under the action of the tension force. With the rotation of the mounting plate 412 and the elastic force of the tension spring 4151, the transfer hopper 22 swings reciprocally.

[0050] Refer to Figure 2 and Figure 10 : Vertical rods 223 for dispersing sludge are provided on the transfer hopper 22.

[0051] The present invention realizes the function of dispersing sludge through the vertical rods 223. There are multiple vertical rods 223, and the multiple vertical rods 223 are distributed in a rectangular array on the transfer hopper 22. During the pre-dewatering swing of the transfer hopper 22, the trajectory of the sludge mass under the action of the inclination change of the transfer hopper 22 is forcibly intervened, and the discontinuous collision contact formed between it and the surface of the vertical rod 223 triggers the shearing and crushing effect. On the premise of ensuring the integrity of the magnetic floc skeleton structure, the local dewatering blind area is eliminated through the multi-scale crushing effect, and the balanced control of the moisture content distribution of the material during the pre-dewatering process is realized. The sludge is pre-dewatered by the swing of the transfer hopper 22. By arranging the vertical rods 223 on the transfer hopper 22, the sludge collides with the vertical rods 223 during the swing, and the sludge is dispersed by the vertical rods 223. The dehydration uniformity of the sludge is further improved by dispersing the sludge.

[0052] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An integrated wastewater treatment device with a pretreatment device, characterized in that, It includes a reaction tank (1), a dehydration device (2), a magnetic separation device (3) and a swing mechanism (4); The reaction tank (1) is used for quickly mixing magnetic powder and sewage; The dehydration device (2) includes a dehydration tank (21) and a transfer hopper (22). The transfer hopper (22) is rotatably arranged on the dehydration tank (21), and filter gauze belts (221) are provided on both sides of the transfer hopper (22); The magnetic separation device (3) is used for separating magnetic flocs in sewage; The swing mechanism (4) is arranged on the dehydration tank (21), and the swing mechanism (4) is used for controlling the reciprocating swing of the transfer hopper (22); In the working state, the sewage is mixed with magnetic powder in the reaction tank (1), and then enters the magnetic separation device (3) after pre-dehydration treatment through the swinging transfer hopper (22); A movable rod (211) is provided on the dehydration tank (21); And an auxiliary control mechanism (5) for controlling the swing of the movable rod (211) is provided on the dehydration tank (21); The auxiliary control mechanism (5) includes a mounting shaft (51) and a first transmission component (52); A first hinge seat (222) is provided on the transfer hopper (22), a connecting shaft (2221) is sleeved on the first hinge seat (222), and the first hinge seat (222) is hinged to the dehydration tank (21) through the connecting shaft (2221); The mounting shaft (51) is rotatably arranged on the dehydration tank (21), a connecting seat (511) is sleeved on the mounting shaft (51), and the movable rod (211) is connected to the connecting seat (511); The mounting shaft (51) is in transmission connection with the connecting shaft (2221) through the first transmission component (52).

2. The integrated wastewater treatment device with a pretreatment device according to claim 1, characterized in that The swing mechanism (4) includes a control component (41) and a rotary drive component (42); The control component (41) is used for controlling the reciprocating swing of the transfer hopper (22); The rotary drive component (42) is used for driving the control component (41).

3. The integrated wastewater treatment device with a pretreatment device according to claim 1, characterized in that, A counterweight block (512) is connected to the connecting seat (511).

4. The integrated wastewater treatment device with a pretreatment device according to claim 3, characterized in that, A mounting rod (212) is provided on the dehydration tank (21); During the swing of the connecting seat (511), the counterweight block (512) intermittently collides with the mounting rod (212).

5. The integrated wastewater treatment device with a pretreatment device according to claim 1, characterized in that, The first transmission component (52) includes a mounting frame (521), a first rotating shaft (522) and a toothed ring (523); The mounting frame (521) is arranged on the dehydration tank (21); The first rotating shaft (522) is rotatably arranged on the mounting frame (521), a rotating gear (5221) is sleeved on the first rotating shaft (522), and the first rotating shaft (522) is in transmission connection with the mounting shaft (51); The toothed ring (523) is sleeved on the connecting shaft (2221), and the rotating gear (5221) is meshed with the toothed ring (523).

6. The integrated wastewater treatment device with a pretreatment device according to claim 2, characterized in that, At least two groups of control components (41) are provided, and the control components (41) are arranged in the dehydration tank (21); A second transmission component (43) is further provided in the dehydration tank (21), and multiple control components (41) are in transmission connection with the rotary drive component (42) through the second transmission component (43).

7. The integrated wastewater treatment device with a pretreatment device according to claim 2, characterized in that, The control component (41) includes a second hinge seat (411), a mounting disc (412) and a connecting rod (413); The second hinge seat (411) is arranged on the transfer hopper (22); The mounting disc (412) is rotationally arranged on the dewatering tank (21), a fixed shaft (4121) is eccentrically arranged on the mounting disc (412), and the mounting disc (412) is in transmission connection with the rotary drive assembly (42); Both ends of the connecting rod (413) are hinged to the second hinge seat (411) and the fixed shaft (4121) respectively.

8. The integrated wastewater treatment device with a pretreatment device according to claim 1, characterized in that, The transfer hopper (22) is provided with a vertical rod (223) for dispersing sludge.

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