A sewage multi-stage treatment device and treatment method

Abstract

The present application belongs to sewage treatment technical field, especially to a kind of sewage multistage processing device and processing method, a kind of sewage multistage processing device, including collection cone barrel, collection cone barrel is connected with upper plate, upper plate is rotatably connected with centrifugal filter cartridge, upper plate can be moved upwards along vertical mode, multiple slots are opened in centrifugal filter cartridge, collection cone barrel is connected with rotating disc, rotating disc can be rotated with a virtual axis as axis, rotating disc is connected with multiple agitating parts, each agitating part is equipped with fishing slot, multiple fishing holes are arranged in each fishing slot, the processing method for processing sewage of the sewage multistage processing device, the method includes the following steps: step one: the equipment is placed in closed container, is fixed by the threaded hole bolt of bottom plate, and chemical reagent is prepositioned in collection cone barrel;It can efficiently realize multistage processing operation of small batch high-pollution sewage.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and particularly relates to a multi-stage wastewater treatment device and treatment method. Background Technology

[0002] With increasingly stringent environmental protection requirements, the efficiency and adaptability of wastewater treatment technologies in various application scenarios have become key demands. Traditional multi-stage treatment devices typically employ a combination of processes, including physical interception, biochemical degradation, and deep purification, to achieve graded removal of pollutants. For example, common systems utilize bar screen pre-filtration, activated sludge degradation of organic matter, and membrane separation technology for deep treatment, forming a three-stage treatment system that significantly improves water purification efficiency.

[0003] However, existing equipment is mostly designed for large-scale wastewater treatment scenarios, relying on fixed structures that are bulky and difficult to move. For example, a typical sludge decomposition tank and anaerobic tank series system requires tens of square meters of space, which cannot meet the treatment needs of small-batch, highly polluted wastewater from laboratories and small medical sites. Wastewater from laboratories and clinics is characterized by high pollution concentration and intermittent batches, requiring rapid integrated treatment. While current small-scale equipment reduces the footprint, it has low solid-liquid separation precision, and the mixing of chemical reagents relies on static diffusion, resulting in insufficient reaction efficiency and making it difficult to achieve efficient separation and deep purification simultaneously. Summary of the Invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide a multi-stage wastewater treatment device and method that can efficiently realize multi-stage treatment of small batches of highly polluted wastewater.

[0005] A multi-stage wastewater treatment device includes a collection cone with an upper plate connected to it. A centrifugal filter cylinder is rotatably connected to the upper plate. The upper plate can move vertically upward. The centrifugal filter cylinder has multiple slots. A turntable is connected inside the collection cone. The turntable can rotate around a virtual axis. Multiple agitators are connected to the turntable.

[0006] Each of the agitating parts is provided with a retrieval groove, and each retrieval groove is provided with multiple retrieval holes.

[0007] Each of the agitating parts is fixedly connected to an agitating plate, and the plurality of agitating parts are rotatably connected to a turntable.

[0008] A rectangular rod is fixedly connected to the centrifugal filter cartridge, and a connecting frame is fixedly connected to the collecting cone. A rotating sleeve is rotatably connected to the connecting frame, and a sliding rod is slidably connected to the rotating sleeve. A rectangular groove is opened on the sliding rod, and the rectangular rod can be inserted into the rectangular groove. The turntable is fixedly connected to the sliding rod.

[0009] The aforementioned multi-stage wastewater treatment device is used for a wastewater treatment method, which includes the following steps:

[0010] Step 1: Place the equipment in a closed container, secure it with bolts through the threaded holes in the base plate, and pre-place chemical reagents in the collection cone;

[0011] Step 2: Pour the wastewater into the centrifuge filter and keep the centrifuge filter rotating.

[0012] Step 3: When treating wastewater with a high content of fragile particles, adjust the stirring plate to be parallel to the water flow direction and use the scooping trough to intercept fine particles.

[0013] Step 4: When treating wastewater with a high content of high-hardness particles, adjust the stirring plate to be perpendicular to the water flow direction to enhance the mixing.

[0014] Step 5: Activate electromagnetic block A to attract the rectangular rod, move the centrifugal filter cylinder downwards, and drive the slide bar to move down along the rotating sleeve, so that the turntable and stirring part move vertically back and forth;

[0015] Step Six: Turn off the equipment, remove the arc-shaped baffle to clean the residue inside the centrifugal filter cartridge, and open the water outlet valve of the collection cone to complete the processing.

[0016] The beneficial effects of this equipment are: it can efficiently realize multi-stage treatment of small batches of highly polluted wastewater, so that the liquid components in the wastewater can be thrown out from the centrifugal filter cartridge, while the solid components remain in the centrifugal filter cartridge. The thrown-out liquid components can be collected by the collection cone. The turntable will drive multiple agitators to rotate synchronously, so that the multiple agitators can fully agitate the wastewater and chemical components, thereby achieving a multi-stage treatment effect of filtration followed by treatment with a single power source. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of a multi-stage wastewater treatment device.

[0019] Figure 3 This is a schematic diagram of the structure of a centrifugal filter cartridge;

[0020] Figure 4 This is a structural diagram of the upper plate;

[0021] Figure 5 This is a structural diagram of the vertical plate;

[0022] Figure 6 This is a schematic diagram of the turntable structure;

[0023] Figure 7 This is a schematic diagram of the stirring section;

[0024] Figure 8A schematic diagram of the structure of the collection cone;

[0025] Figure 9 This is a schematic diagram of the rotating sleeve structure;

[0026] Figure 10 This is a structural diagram of the connecting frame. Detailed Implementation

[0027] A multi-stage wastewater treatment device includes a collection cone 501, an upper plate 201 connected to the collection cone 501, a centrifugal filter cylinder 101 rotatably connected to the upper plate 201, the upper plate 201 being able to move vertically upwards, the centrifugal filter cylinder 101 having multiple slots 102, a turntable 301 connected inside the collection cone 501, the turntable 301 being able to rotate about a virtual axis, multiple agitators 401 connected to the turntable 301, a motor fixedly connected to the upper plate 201, a gear fixedly connected to the output shaft of the motor, and a gear ring fixedly connected to the centrifugal filter cylinder 101, the gear meshing with the gear ring.

[0028] The upper plate 201 and the collecting cone 501 are connected by tightening bolts into a container that can seal the upper plate 201 and the collecting cone 501. The bottom of the container is equipped with rolling wheels to enhance the portability and mobility of the equipment. When multi-stage treatment is required for small batches of highly polluted wastewater, such as laboratory wastewater, the wastewater is poured into the centrifuge filter cartridge 101. At this time, the motor can drive the gear to rotate. Through the transmission of the gear and the gear ring, the centrifuge filter cartridge 101 rotates, thereby gradually centrifuging the wastewater. The liquid components in the wastewater can be thrown out from the centrifuge filter cartridge 101, while the solid components remain in the centrifuge filter cartridge 101. The thrown-out liquid components can be collected by the collecting cone 501, thus completing the filtration treatment of the wastewater.

[0029] Chemical components capable of treating liquid wastewater are pre-placed inside the collection cone 501. When the liquid enters the collection cone 501 and is collected, the centrifugal filter cartridge 101 rotates continuously, causing the turntable 301 to rotate synchronously. During this process, the turntable 301 drives multiple agitators 401 to rotate synchronously, allowing the multiple agitators 401 to fully agitate the wastewater and chemical components, enabling the wastewater to fully contact the original chemical components, thereby achieving the chemical treatment and purification effect of the wastewater. Thus, a multi-stage treatment effect of filtration followed by treatment can be achieved with a single power source, while requiring only a small space for the equipment. It is especially suitable for small-scale multi-stage wastewater treatment scenarios, bringing convenience to small-scale wastewater treatment scenarios.

[0030] The centrifugal filter cartridge 101 is equipped with a discharge chute, and an arc-shaped baffle is connected to the discharge chute by tightening bolts. The staff can periodically open the container and remove the arc-shaped baffle to collect and process the solid components remaining in the centrifugal filter cartridge 101, so as to facilitate the recycling of this equipment.

[0031] The collecting cone 501 is equipped with an outlet, and a switch valve is installed inside the outlet. After treatment, the treated wastewater can be discharged by opening the switch valve, thus completing the drainage effect.

[0032] Each of the agitation parts 401 is provided with a retrieval groove 403, and each retrieval groove 403 is provided with a plurality of retrieval holes 402.

[0033] During the rotation of the turntable 301, which fully agitates the wastewater and chemical components, the wastewater is gradually agitated by multiple agitators 401. During this process, the wastewater passes through multiple scooping troughs 403 and exits through multiple scooping holes 402 on the scooping troughs 403. If some solid particles remain in the wastewater, after the solid particles enter a certain scooping trough 403, they cannot be discharged through multiple scooping holes 402. Since the turntable 301 always rotates in the same direction, the solid particles can remain in the scooping trough 403. The multiple agitators 401 and multiple scooping troughs 403 can further remove the polluting solid particles in the wastewater, preventing some particles from colliding and breaking into smaller pieces during centrifugation and accidentally falling out through the trough holes 102, thus causing the polluting solid particles to be accidentally discharged during subsequent drainage. In other words, the multiple scooping troughs 403 and multiple scooping holes 402 can further capture solid particles, ensuring the solid-liquid separation effect and improving the stability of wastewater treatment results.

[0034] The centrifugal force generated when the turntable 301 rotates can drive the particles to move outward, while the vortex generated by the rotation of the stirring part 401 guides the particles to the retrieval trough 403. The dual action efficiently captures the particles. At the same time, the rotational centrifugal force can also gradually guide the captured particles to the outer ring position of multiple stirring parts 401 to prevent the orifice from being blocked.

[0035] Each of the agitation parts 401 is fixedly connected to an agitation plate 405, and the plurality of agitation parts 401 are rotatably connected to a turntable 301.

[0036] If the solid particles in the wastewater are all large and have high hardness, and the collisions between them during centrifugation are unlikely to cause breakage, multiple agitators 401 can be used to agitate the wastewater. In this case, multiple agitators 401 can rotate multiple agitators 405 in the direction of rotation of the turntable 301, so that the wastewater cannot pass through the agitators 401. Then, when the turntable 301 rotates, the multiple agitators 401 can move the wastewater with full force, thereby improving the agitation effect of the wastewater and improving the wastewater purification efficiency.

[0037] Operators can adjust the rotation angle of multiple agitators 401 according to the specific composition of the experimental wastewater and the hardness of solid particles, so that the orientation of multiple agitators 401 changes, thereby switching the equipment to various different operating states such as more agitation effect, more retrieval effect, agitation before retrieval, or retrieval before agitation, so as to meet different usage needs.

[0038] When treating wastewater containing large particles and high-hardness solids, the stirring plate 405 is adjusted to be parallel to the rotation direction of the turntable 301, completely blocking the water flow, so that the stirring part 401 can exert a strong pushing effect, increase the turbulence intensity of wastewater, and accelerate the diffusion of agents and the degradation of pollutants.

[0039] When treating wastewater containing fragile particles, the agitator 405 is adjusted to be perpendicular to the water flow direction, and the fine particles are intercepted by the scooping trough 403, while retaining some agitation function to achieve a balance between solid-liquid separation and mixing.

[0040] Furthermore, it also supports a combination of processes such as first scooping and then stirring or first stirring and then scooping. For example, for wastewater containing precipitable heavy metals, large particles can be scooped first and then stirred to promote chemical reactions and improve the removal rate of heavy metals.

[0041] Meanwhile, operators can adjust the angle according to the characteristics of wastewater such as particle hardness, viscosity, and solid content. For example, when dealing with high-viscosity wastewater, the tilt angle of the agitator plate can be increased to balance the flow resistance and mixing efficiency, while when dealing with wastewater with high solid content, the tilt angle can be reduced to enhance the retrieval ability and prevent clogging.

[0042] A rectangular rod 103 is fixedly connected to the centrifugal filter cartridge 101, and a connecting frame 503 is fixedly connected to the collecting cone 501. A rotating sleeve 302 is rotatably connected to the connecting frame 503, and a sliding rod 303 is slidably connected to the rotating sleeve 302. A rectangular groove is provided on the sliding rod 303, and the rectangular rod 103 can be inserted into the rectangular groove. An electromagnetic block A is fixedly connected to the sliding rod 303, and the electromagnetic block A can attract and fix the rectangular rod 103. A storage battery A is fixedly connected to the sliding rod 303, and the storage battery A can supply power to the electromagnetic block A to avoid wire tangling.

[0043] By cooperating with the rectangular groove and the rectangular rod 103, the slide rod 303 can be driven to rotate when the centrifugal filter cartridge 101 rotates. The rotation of the slide rod 303 in turn drives the turntable 301 to rotate, thereby achieving the agitation effect of multiple agitation parts 401 on the sewage. At the same time, during the agitation process, since the rotating sleeve 302 is slidably connected to the slide rod 303, the rotating sleeve 302 can rotate synchronously with the slide rod 303.

[0044] During the agitation process, the centrifugal filter cartridge 101 can be periodically moved up and down to adjust its height. When the centrifugal filter cartridge 101 contains a lot of wastewater, it can be moved downwards to avoid the situation where wastewater accumulates and splashes excessively when more wastewater is added to the centrifugal filter cartridge 101, thus preventing wastewater from splashing out of the equipment. In other words, when the liquid content of the centrifugal filter cartridge 101 is high, the operator can move the centrifugal filter cartridge 101 down to reduce the wastewater filling height and prevent droplets from splashing and escaping.

[0045] Simultaneously, electromagnetic block A can be activated to adsorb and fix the rectangular rod 103. At this time, the centrifugal filter cartridge 101, which slides up and down, can synchronously drive the slide rod 303 to move up and down on the rotating sleeve 302, causing the rotating disk 301 to drive multiple stirring parts 401 to move up and down, thereby increasing the stirring range of the rotating disk 301. The rotating disk 301 moves back and forth in the vertical direction while rotating, breaking the dead zone of the flow field of traditional static stirring, increasing the diffusion speed of the agent, and further improving the stirring treatment effect. At the same time, the up and down movement of the stirring parts 401 forms a periodic vortex ring in the sewage, which enhances the shear force and is suitable for the crushing and dispersion of high viscosity sludge, such as sewage containing PAM flocculant.

[0046] Each of the agitation parts 401 is fixedly connected to a transmission arc surface 404. A pressure ring 205 is connected to the lower side of the centrifugal filter cylinder 101. A torsion spring is provided at the rotatable connection between each agitation part 401 and the turntable 301. The pressure ring 205 can contact multiple transmission arc surfaces 404. An electromagnetic block B is fixedly connected to the rotating sleeve 302. The electromagnetic block B can attract and fix the slide rod 303. A storage battery B is fixedly connected to the rotating sleeve 302. The storage battery B can supply power to the electromagnetic block B to avoid wire tangling.

[0047] When it is necessary to adjust the rotation angle of multiple agitators 401, the electromagnetic block A can be de-energized and the electromagnetic block B can be energized, so that the rotating sleeve 302 is fixed. At this time, the slide rod 303 can no longer slide on the rotating sleeve 302, while the rectangular rod 103 can slide relative to the slide rod 303. When the angle adjustment operation of multiple agitators 401 is performed in the future, the centrifugal filter cylinder 101 can be slid down, thereby driving the pressure ring 205 to move down synchronously. At this time, the pressure ring 205 can press multiple smooth transmission arc surfaces 404 to overcome the torsional force of the torsion spring and rotate, so that the rotation angle of multiple agitators 401 changes. Then the electromagnetic block B can be de-energized and multiple electromagnetic blocks A can be energized to achieve the purpose of agitation effect at different heights.

[0048] It also includes a compression spring 304 fixed between the rotating sleeve 302 and the slide rod 303.

[0049] The compression spring 304 ensures that the turntable 301 can be stabilized at a certain height without pressure, providing a stable guarantee for the subsequent operation of pressing multiple agitators 401 to rotate at accurate angles using the pressure ring 205.

[0050] Multiple vertical plates 202 are fixedly connected to the lower side of the upper plate 201. A connecting frame 203 is fixedly connected between the multiple vertical plates 202. Multiple vertical rods 204 are fixedly connected to the connecting frame 203. A pressure ring 205 is fixedly connected between the multiple vertical rods 204. A rubber strip is provided at the contact position between each vertical plate 202 and the centrifugal filter cartridge 101.

[0051] The arrangement of multiple vertical plates 202 and multiple rubber strips allows the rubber strips to scrape the surface of the centrifugal filter cartridge 101 during rotation, so that the solid particles blocked in the multiple slots 102 on the centrifugal filter cartridge 101 can be scraped by the rubber strips, thereby reducing the blockage of the centrifugal filter cartridge 101 and ensuring the centrifugation effect.

[0052] The arrangement of the vertical plate 202, connecting frame 203, vertical rod 204 and pressure ring 205 ensures that the centrifugal filter cartridge 101 can drive the pressure ring 205 to move up and down when it moves up and down, which facilitates the subsequent adjustment of the rotation direction of multiple stirring parts 401.

[0053] It also includes multiple electric push rods 505 fixed to the collecting cone 501, and the telescopic rods of the multiple electric push rods 505 are fixed to the upper plate 201.

[0054] By operating multiple electric push rods 505, the telescopic rods of the multiple electric push rods 505 drive the upper plate 201 to move up and down, thereby completing the subsequent adjustment of the angle of multiple stirring parts 401 or the adjustment of the stirring height.

[0055] It also includes a base plate 502 fixed to the lower side of the collecting cone 501, and multiple threaded holes are opened on the base plate 502.

[0056] The base plate 502 provides a flat surface, which facilitates subsequent installation operations. During installation, the base plate 502 can be fixed by screwing bolts into the multiple threaded holes of the base plate 502, thereby fixing the equipment in the container and facilitating subsequent sewage treatment operations.

[0057] The aforementioned multi-stage wastewater treatment device is used for a wastewater treatment method, which includes the following steps:

[0058] Step 1: Place the equipment in a closed container and fix it with bolts through the threaded holes of the base plate 502, and pre-place chemical reagents in the collection cone 501;

[0059] Step 2: Pour the experimental wastewater into centrifuge filter cartridge 101 and keep centrifuge filter cartridge 101 rotating.

[0060] Step 3: When treating wastewater with a high content of fragile particles, adjust the stirring plate 405 to be parallel to the water flow direction, and use the scooping trough 403 to intercept fine particles.

[0061] Step 4: When treating wastewater with a high content of high-hardness particles, adjust the stirring plate 405 to be perpendicular to the water flow direction to enhance the mixing and agitation.

[0062] Step 5: Start the electromagnetic block A to attract the rectangular rod 103, move the centrifugal filter cylinder 101 down and drive the slide rod 303 down along the rotating sleeve 302, so that the turntable 301 and the stirring part 401 move vertically back and forth;

[0063] Step Six: Turn off the equipment, remove the arc-shaped baffle to clean the residue inside the centrifugal filter cartridge 101, and open the water outlet valve of the collection cone 501 to complete the processing.

[0064] The chemical agent is either the flocculant PAC or the oxidant calcium hypochlorite.

Claims

1. A multi-stage wastewater treatment device, characterized in that, It includes a collecting cone, an upper plate connected to the collecting cone, a centrifugal filter cylinder rotatably connected to the upper plate, the upper plate can move upward in the vertical direction, the centrifugal filter cylinder has multiple slots, a turntable connected inside the collecting cone, the turntable can rotate around a virtual axis, multiple agitators are connected to the turntable, and a discharge chute is provided on the centrifugal filter cylinder, and an arc-shaped baffle plate is connected to the discharge chute by tightening bolts; Each of the agitating parts is provided with a retrieval groove, and each retrieval groove is provided with multiple retrieval holes; Each of the agitation parts is fixedly connected to an agitation plate, and multiple agitation parts are rotatably connected to a turntable. A motor is fixedly connected to the upper plate, a gear is fixedly connected to the output shaft of the motor, and a gear ring is fixedly connected to the centrifugal filter cartridge. The gear and the gear ring mesh. A rectangular rod is fixed to the centrifugal filter cartridge, a connecting frame is fixed to the collecting cone, a rotating sleeve is rotatably connected to the connecting frame, a sliding rod is slidably connected to the rotating sleeve, a rectangular groove is provided on the sliding rod, the rectangular rod can be inserted into the rectangular groove, the turntable is fixed to the sliding rod, an electromagnetic block A is fixed to the sliding rod, the electromagnetic block A can attract and fix the rectangular rod, and a storage battery A is fixed to the sliding rod, the battery A can supply power to the electromagnetic block A; Each of the agitation parts is fixedly connected to a transmission arc surface, and a pressure ring is connected to the lower side of the centrifugal filter cylinder. A torsion spring is provided at the rotation connection between each agitation part and the turntable. The pressure ring can contact multiple transmission arc surfaces. An electromagnetic block B is fixedly connected to the rotating sleeve. The electromagnetic block B can attract and fix the slide rod. A storage battery B is fixedly connected to the rotating sleeve. The battery B can supply power to the electromagnetic block B. It also includes multiple electric push rods fixed to the collecting cone, and the extension rods of the multiple electric push rods are fixed to the upper plate.

2. The multi-stage wastewater treatment device according to claim 1, characterized in that, It also includes a compression spring fixed between the rotating sleeve and the sliding rod.

3. The multi-stage wastewater treatment device according to claim 2, characterized in that, Multiple vertical plates are fixedly connected to the lower side of the upper plate, and a connecting frame is fixedly connected between the multiple vertical plates. Multiple vertical rods are fixedly connected to the connecting frame, and a pressure ring is fixedly connected between the multiple vertical rods.

4. A multi-stage wastewater treatment device according to claim 3, characterized in that, It also includes a base plate fixed to the underside of the collecting cone.

5. The wastewater treatment method of the multi-stage wastewater treatment device according to claim 4, characterized in that, The method includes the following steps: Step 1: Place the equipment in a closed container, secure it with bolts through the threaded holes in the base plate, and pre-place chemical reagents in the collection cone; Step 2: Pour the wastewater into the centrifuge filter and keep the centrifuge filter rotating. Step 3: When treating wastewater with a high content of fragile particles, adjust the stirring plate to be parallel to the water flow direction and use the scooping trough to intercept fine particles. Step 4: When treating wastewater with a high content of high-hardness particles, adjust the stirring plate to be perpendicular to the water flow direction to enhance the mixing. Step 5: Activate electromagnetic block A to attract the rectangular rod, move the centrifugal filter cylinder downwards, and drive the slide bar to move down along the rotating sleeve, so that the turntable and stirring part move vertically back and forth; Step Six: Turn off the equipment, remove the arc-shaped baffle to clean the residue inside the centrifugal filter cartridge, and open the water outlet valve of the collection cone to complete the processing.

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