Sewage treatment device

Abstract

The utility model relates to a sewage treatment device which comprises a filter box, a stirring motor is arranged on the end face of the bottom end of the filter box, a stirring shaft is vertically arranged in the center of the interior of the filter box, the bottom end of the stirring shaft is in transmission connection with the output end of the stirring motor, the top end of the stirring shaft extends upwards to the top of the filter box, and a bevel gear is arranged at the end of the top end of the stirring shaft. A slag scraping assembly is further arranged at the top of the box body; an aeration assembly used for oxygenation is further arranged in the filter box; the device is improved based on existing purification equipment, the contact range of aeration equipment and liquid is expanded, dead angles are avoided, meanwhile, a large number of small vortexes can be formed in stirring equipment, rapid diffusion of drugs such as flocculants and the like can be facilitated, the sedimentation speed in the liquid can be increased in cooperation with the small vortexes, and the effect of purifying the liquid is achieved. The scum scraping assembly can quickly remove floating scum which suspends and is accumulated on the water surface so as to be matched with the equipment for continuous filtration, manual auxiliary operation is not needed, and an additional power source does not need to be arranged.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage purification equipment, in particular to a sewage treatment device. Background Art

[0002] The per capita water resources in my country are about 220m3. The domestic water resources shortage is obvious, which has become one of the important factors restricting the stable development of my country's social economy. In order to realize the comprehensive utilization of sewage resources, sewage purification equipment is needed.

[0003] Aeration tanks are used in sewage treatment systems. Air is transported through aeration devices to form bubbles that are dispersed and escape, dissolving oxygen into water at the gas-liquid interface to meet the oxygen requirements of aerobic microorganisms and the mixing conditions for full contact between sewage and activated sludge. However, existing aeration equipment has a single structure and a fixed position, which is prone to aeration dead corners. In addition, during continuous operation, especially for water storage equipment with a large area, a large amount of instant noodle scum will be suspended and accumulated on the surface of the pool. If it only relies on automatic overflow, the collection efficiency is low. If it relies on manual labor, the workload is high. Utility Model Content

[0004] Based on the above description, the utility model provides a sewage treatment device to solve the shortcomings of existing aeration equipment, such as single structure, small coverage, and low efficiency of collecting scum by automatic overflow when working inside a large pool or water tank.

[0005] The utility model is realized through the following technical solutions:

[0006] A sewage treatment device comprises a filter box, wherein a stirring motor is provided on the end face of the bottom end of the filter box, a stirring shaft is vertically arranged at the inner center of the filter box, the bottom end of the stirring shaft is transmission-connected to the output end of the stirring motor, the top end of the stirring shaft extends upward to the top of the filter box and a bevel gear is provided at the end of the top end, a scraping assembly is also provided on the top of the filter box, and the scraping assembly is transmission-connected to the bevel gear; an aeration assembly for oxygenation is also provided inside the filter box.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the lower half of the filter box is configured as an inverted cone, and the end face of the bottom end of the filter box extends vertically downward to form an output pipe, sewage outlets are respectively provided on both sides of the output pipe, and valves are provided on both sewage outlets, and the stirring motor is fixedly installed at the center of the bottom surface of the output pipe.

[0009] Furthermore, a stirring frame and a spiral blade are sequentially arranged on the outer wall of the stirring shaft inside the filter box, wherein the stirring frame is arranged at the center of the filter box and is integrally installed and fixed with the stirring shaft, and the spiral blade is arranged inside the output pipe and surrounds the periphery of the stirring shaft.

[0010] Furthermore, the stirring rack is composed of four stirring frames arranged in a cross shape, and the center of each stirring frame is hollowed out and filled with a large number of spoiler balls, and metal meshes are provided on both sides of the stirring frame and are locked and fixed to the four corners of the stirring frame surface by bolts.

[0011] Furthermore, the scraper assembly includes a transmission shaft arranged laterally above the filter box, support frames are provided at both ends of the transmission shaft and are fixedly connected to the top surface of the side wall of the filter box, a transmission gear is also provided at the center of the transmission shaft, the transmission gear is meshed with the bevel gear at the top of the stirring shaft, movable brackets are respectively provided on both sides of the transmission gear and are movably connected to the transmission shaft, and a scraper plate is movably installed at the bottom center of the movable bracket, and the bottom surface of the scraper plate is just in contact with the liquid surface in the filter box.

[0012] Furthermore, slide grooves are arranged on both sides of the top surface of the filter box, and the two ends of the movable bracket extend toward both sides so that the bottom end thereof is movably plugged into the slide grooves, and blocks are provided at the center of the two slide grooves and at both ends.

[0013] Furthermore, the transmission shaft is a reciprocating screw.

[0014] Furthermore, an electric telescopic rod is provided inside the movable bracket, the bottom end of the electric telescopic rod is fixedly connected to the top end of the scraper plate, and control buttons for controlling the electric telescopic rod are provided on both sides of the movable bracket.

[0015] Furthermore, the aeration assembly includes a mesh pipe horizontally arranged inside the filter box, and the mesh pipe is arranged between the stirring frame and the spiral blade. A plurality of aeration heads are also arranged on the top surface of the mesh pipe. The air inlet end of the mesh pipe passes through the outside of the filter box and is connected to the air compressor.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] 1. The present application is based on the improvement of the existing purification equipment, and adopts the method of stirring and turbulence to expand the contact range between the aeration equipment and the liquid and avoid the occurrence of aeration dead corners. At the same time, in the stirring equipment of the present application, the stirring structure can form a large number of small vortices during the stirring process, which can not only help the rapid diffusion of drugs such as flocculants, but also cooperate with these small vortices to accelerate the sedimentation rate in the liquid.

[0018] 2. The present application also has a scraping assembly on the top, which can quickly remove the scum suspended and accumulated on the water surface, so as to cooperate with the equipment for continuous filtration. The structure is connected to the stirring structure by transmission, so it can be achieved without human assistance or additional power source. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the filter box in this embodiment;

[0020] Figure 2 This is a schematic diagram of the structure of the scraper assembly in this embodiment;

[0021] Figure 3 Schematic diagram of the structure of the stirring shaft and the aeration assembly in this embodiment;

[0022] Among them: 1. Filter box; 11. Output pipe; 12. Drain port; 13. Chute; 14. Block; 2. Agitator shaft; 21. Agitator rack; 22. Agitator frame; 23. Spiral blade; 3. Agitator motor; 4. Slag scraper assembly; 41. Drive shaft; 42. Drive gear; 43. Movable bracket; 44. Slag scraper plate; 45. Electric telescopic rod; 46. Control button; 5. Aeration assembly; 51. Mesh pipe; 52. Aeration head. DETAILED DESCRIPTION

[0023] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0025] Combination Figure 1-3 As shown, a sewage treatment device comprises:

[0026] The filter box 1 is a container for holding waste, with a mud discharge outlet at the bottom and a water outlet pipe on the side wall;

[0027] The stirring shaft 2 is vertically arranged inside the filter box 1, and disturbs the internal wastewater by stirring to keep it in a flowing state, thereby avoiding the occurrence of filtering dead corners;

[0028] The stirring motor 3 is arranged at the bottom of the filter box 1 and is drivingly connected to the stirring shaft 2, and is the power source of the stirring structure;

[0029] The scraper assembly 4 is arranged on the top surface of the box body, and scrapes off the suspended matter on the surface of the wastewater by horizontal movement, accelerates the discharge of flocculants and scum, and improves the separation and filtration efficiency;

[0030] The aeration assembly 5 is arranged inside the box, and provides a large amount of oxygen to the inside of the box by aeration. By relying on these bubbles, a large amount of flocculants and suspended matter in the liquid float to the liquid surface, thereby improving the wastewater filtration efficiency.

[0031] Specifically, the lower half of the filter box 1 is set to an inverted cone, and the end face of the bottom end of the filter box 1 extends vertically downward to form an output pipe 11, and sewage outlets 12 are respectively opened on both sides of the output pipe 11. Valves are provided on the two sewage outlets 12. The stirring motor 3 is fixedly installed at the center of the bottom surface of the output pipe 11, and the bottom end of the stirring shaft 2 is rotatably connected to the inner bottom surface of the output pipe 11 by a bearing structure. At the same time, in the upper half of the stirring shaft 2, four brackets are used to fix the inner wall of the filter box 1, and a ball bearing is also provided at the center of the four brackets, so as to support and fix the stirring shaft 2 in cooperation with the fixing method of the bottom of the stirring shaft 2.

[0032] A stirring frame 21 and a spiral blade 23 are arranged in sequence on the outer wall of the stirring shaft 2 located inside the filter box 1, wherein the stirring frame 21 is arranged at the center of the filter box 1 and is integrally installed and fixed with the stirring shaft 2, and the spiral blade 23 is arranged inside the output pipe 11 and surrounds the periphery of the stirring shaft 2.

[0033] The stirring rack 21 is composed of a stirring frame 22 arranged in a cross shape, and the center of each stirring frame 22 is hollowed out and filled with a large number of spoiler balls. The spoiler balls are ABS flocculation balls made of silicone material, and metal meshes are provided on both sides of the stirring frame 22 and are locked and fixed to the four corners of the surface of the stirring frame 22 by bolts. During the stirring process, a large amount of wastewater flows into the spoiler balls, and then is quickly cut by the holes on the spoiler balls, so that multiple micro vortices are formed around the spoiler balls. These micro vortices will accelerate the combination of impurities and flocculants in the wastewater, thereby producing floccules faster, so that the wastewater can be quickly filtered and separated. In addition, the stirring structure does not make the water flow rotate in a single direction, but relies on the spoiler balls to form turbulence. Therefore, compared with the existing stirring equipment, its spoiler effect is better, and it can effectively avoid the occurrence of filtering dead corners, so that the wastewater inside the entire filter box 1 can effectively participate in the flocculation reaction.

[0034] The spiral blades 23 are used to discharge the sludge impurities at a uniform speed by spiral stirring after a large amount of floccules accumulate at the bottom of the box. In combination with the inclined surface at the bottom, a large amount of sediment will naturally accumulate near the output pipe 11, effectively avoiding the blockage of the sewage outlet 12 due to excessive accumulation.

[0035] The scraper assembly 4 includes a transmission shaft 41 which is arranged transversely above the filter box 1. Both ends of the transmission shaft 41 are fixedly connected to the top surface of the side wall of the filter box 1 through a support frame. A transmission gear 42 is also provided at the center of the transmission shaft 41. A bevel gear is provided at the top of the stirring shaft 2. The two are in transmission mesh with each other. Movable brackets 43 are respectively provided on both sides of the transmission gear 42 and are movably connected to the transmission shaft 41. A scraper plate 44 is movably installed at the bottom center of the two movable brackets 43. The bottom surface of the scraper plate 44 just contacts the liquid surface in the filter box 1. The transmission shaft 41 is a reciprocating screw and passes through the two movable brackets 43 longitudinally. Therefore, when the stirring shaft 2 drives the transmission shaft 41 to rotate, the two movable brackets 43 can be driven to reciprocate, and a large amount of scum on the liquid surface can be driven to the edge through the scraper plate 44 at the bottom, so as to cooperate with the surrounding containers for separately containing scum impurities for collection.

[0036] At the same time, in order to maintain the stability of the movable bracket 43, a slide groove 13 should be set on the top surface of the filter box 1, and the two ends of the two movable brackets 43 should be slid vertically downward and inserted into the slide groove 13 to ensure its horizontal movement. In actual use, the reciprocating screw also needs to have multiple blocks 14 at both ends and the center of the slide groove 13 to limit the end of the movable bracket 43. When the two ends of the movable bracket 43 are blocked, the threads on the reciprocating screw will move in the opposite direction to achieve reciprocating motion.

[0037] Based on the above structure, if the scraper plate 44 is fixedly installed, a large amount of scum will gather at the center due to the reciprocating motion of the two movable brackets 43 and cannot be discharged smoothly. Therefore, in this embodiment, an electric telescopic rod 45 should also be provided inside the movable bracket 43. The structure can also be replaced by a cylinder as appropriate, and control buttons 46 are provided on both sides of the movable bracket 43, wherein the control button 46 on the side facing the center of the filter box 1 is a descending button, and the control button 46 on the side facing the outside of the center of the filter box 1 is an ascending button, and the position of the button is set close to the end, so that when it moves to the maximum or minimum stroke, it can fit with the side wall of the stopper 14, so as to control the control button 46 by squeezing it. Therefore, each time the scraper plate 44 moves outward, the scum is scraped off to both sides, and when the scraper plate 44 moves inward, it shrinks upward and keeps a certain distance from the liquid surface.

[0038] The aeration assembly 5 includes a mesh pipe 51 horizontally arranged inside the filter box 1, and the mesh pipe 51 is arranged between the stirring frame 21 and the spiral blade 23. A plurality of aeration heads 52 are also arranged on the top surface of the mesh pipe 51. The air inlet end of the mesh pipe 51 passes through the outside of the filter box 1 and is connected to the air compressor.

[0039] After the aeration equipment discharges air into the wastewater, a large number of bubbles will be cut by the spoiler balls in the above-mentioned stirring equipment to form more tiny bubbles. These tiny bubbles can absorb some smaller flocs and carry them to the top surface, eventually forming scum on the liquid surface, so that they can be quickly discharged with the help of the scraper plate 44.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the technical solution of the embodiments of the utility model.

Claims

1. A sewage treatment device, characterized in that: The invention comprises a filter box (1), wherein a stirring motor (3) is provided on the end surface of the bottom end of the filter box (1), a stirring shaft (2) is vertically arranged at the center of the inside of the filter box (1), the bottom end of the stirring shaft (2) is drivingly connected to the output end of the stirring motor (3), the top end of the stirring shaft (2) extends upward to the top of the filter box (1) and a bevel gear is provided at the end of the top end, a scraping assembly (4) is also provided on the top of the filter box, and the scraping assembly (4) is drivingly connected to the bevel gear; an aeration assembly (5) for increasing oxygen is also provided inside the filter box (1).

2. A sewage treatment device according to claim 1, characterized in that: The lower half of the filter box (1) is arranged in an inverted cone shape, and the end surface of the bottom end of the filter box (1) extends vertically downward to form an output pipe (11), and sewage outlets (12) are respectively provided on both sides of the output pipe (11), and valves are provided on the two sewage outlets (12), and the stirring motor (3) is fixedly installed at the center of the bottom surface of the output pipe (11).

3. A sewage treatment device according to claim 2, characterized in that: The stirring shaft (2) is located on an outer wall of the filter box (1), and a stirring frame (21) and a spiral blade (23) are arranged in sequence, wherein the stirring frame (21) is arranged at the center of the filter box (1) and is integrally mounted and fixed to the stirring shaft (2), and the spiral blade (23) is arranged inside the output pipe (11) and surrounds the outer periphery of the stirring shaft (2).

4. A sewage treatment device according to claim 3, characterized in that: The stirring rack (21) is composed of four stirring frames (22) arranged in a cross shape, and the center of each stirring frame (22) is hollowed out and filled with a large number of spoiler balls, and metal meshes are respectively provided on both sides of the stirring frame (22) and are locked and fixed to the four corners of the surface of the stirring frame (22) by bolts.

5. A sewage treatment device according to claim 1, characterized in that: The scraper assembly (4) comprises a transmission shaft (41) arranged transversely above the filter box (1), support frames are provided at both ends of the transmission shaft (41) and are fixedly connected to the top surface of the side wall of the filter box (1), a transmission gear (42) is provided at the center of the transmission shaft (41), the transmission gear (42) and the bevel gear at the top of the stirring shaft (2) are meshed with each other, movable brackets (43) are provided on both sides of the transmission gear (42) and are movably connected to the transmission shaft (41), and a scraper plate (44) is movably installed at the bottom center of the movable bracket (43), and the bottom surface of the scraper plate (44) is in contact with the liquid surface in the filter box (1).

6. A sewage treatment device according to claim 5, characterized in that: Slide grooves (13) are arranged on both sides of the top surface of the filter box (1), and the two ends of the movable bracket (43) extend toward both sides so that the bottom end thereof is movably plugged into the slide grooves (13), and stoppers (14) are arranged at the center of the two slide grooves (13) and at both ends.

7. A sewage treatment device according to claim 6, characterized in that: The transmission shaft (41) is a reciprocating screw.

8. A sewage treatment device according to claim 7, characterized in that: An electric telescopic rod (45) is also provided inside the movable bracket (43), the bottom end of the electric telescopic rod (45) is fixedly connected to the top end of the scraper plate (44), and control buttons (46) for controlling the electric telescopic rod (45) are respectively provided on both sides of the movable bracket (43).

9. A sewage treatment device according to claim 2, characterized in that: The aeration assembly (5) comprises a mesh pipe (51) horizontally arranged inside the filter box (1), and the mesh pipe (51) is arranged between the stirring frame (21) and the spiral blades (23), and a plurality of aeration heads (52) are arranged on the top surface of the mesh pipe (51), and the air inlet end of the mesh pipe (51) passes through the outside of the filter box (1) and is connected to the air compressor.

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