Sewage treatment equipment

Abstract

The utility model provides sewage treatment equipment and relates to the technical field of sewage treatment. The sewage treatment equipment comprises a treatment pond, the treatment pond sequentially comprises a coagulation area, a filtering area, a flocculation area and a sedimentation area from left to right, the coagulation area and the flocculation area are each provided with a chemical adding hopper, the filtering area comprises a filter screen and a lifting mechanism, the lifting mechanism comprises a mounting frame and a hydraulic air cylinder fixedly mounted on the mounting frame, and the hydraulic air cylinder is connected with the filter screen. And a piston rod of the hydraulic cylinder penetrates through the mounting frame and is detachably connected with the filter screen. Impurities on the filter screen can be cleaned in time, the filter effect can be improved, and the sewage treatment effect is good.

Description

Technical Field

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

[0002] Sewage usually refers to the discharged water from life and production that is polluted to a certain extent. Sewage mainly includes domestic sewage, industrial wastewater and initial rainwater. The main pollutants in sewage include pathogen pollutants, oxygen-depleting pollutants, plant nutrients and toxic pollutants.

[0003] When treating sewage, we usually filter the sewage and then add flocculants and other treatment liquids to purify the sewage. However, sewage contains many impurities, which may clog the filter, resulting in poor filtering effect and affecting the sewage treatment effect. Utility Model Content

[0004] The utility model aims to provide a sewage treatment device, which can clean the impurities on the filter screen in time, thus helping to improve the filtering effect and achieving a good sewage treatment effect.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A sewage treatment device includes a treatment tank, which includes a coagulation zone, a filtration zone, a flocculation zone and a sedimentation zone from left to right. The coagulation zone and the flocculation zone are both provided with a dosing hopper. The filtration zone includes a filter screen and a lifting mechanism. The lifting mechanism includes a mounting frame and a hydraulic cylinder fixedly mounted on the mounting frame. The piston rod of the hydraulic cylinder passes through the mounting frame and is detachably connected to the filter screen.

[0007] Furthermore, the coagulation zone and the flocculation zone are also provided with a stirring assembly, which includes a stirring motor, a stirring rod and a plurality of stirring blades, the plurality of stirring blades are evenly installed on the stirring rod, and the output end of the stirring motor is connected to the stirring rod.

[0008] Furthermore, the filter screen is U-shaped.

[0009] Furthermore, a scraper assembly is provided in the sedimentation area, and the scraper assembly includes a scraper plate, a rotating shaft and a scraper motor. One end of the rotating shaft is connected to the output end of the scraper motor, and the other end of the rotating shaft is fixedly connected to the scraper plate.

[0010] Furthermore, the bottom of the sedimentation zone is funnel-shaped, the scraper blade is V-shaped, and the angle of the scraper blade is the same as the angle of the bottom of the sedimentation zone.

[0011] Furthermore, a sedimentation plate is arranged on the upper part of the sedimentation zone, and the sedimentation plate is assembled from a plurality of polypropylene honeycomb inclined tubes.

[0012] Furthermore, a baffle is provided on one side of the sedimentation plate close to the flocculation zone, and the top of the baffle is connected to the inner top surface of the sedimentation zone.

[0013] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0014] The utility model cooperates with a coagulation zone, a filtration zone, a flocculation zone and a sedimentation zone to first coagulate the sewage to absorb the larger pollutants therein, then filters it through the filtration zone to intercept the coagulated substances, and then flocculates the sewage to flocculate the small alum flowers and fine suspended pollutants precipitated by the coagulation into large flocs, and allows the flocs to settle in the sedimentation zone. The treated liquid is discharged from the upper part of the sedimentation zone to complete the sewage treatment process. According to the coagulation-filtration-flocculation-sedimentation method, the sewage can be effectively purified and the sewage treatment effect can be improved. In addition, a lifting mechanism is connected to the filter net, and the filter net is raised by the lifting mechanism, which makes it convenient for the staff to clean the filter net. At the same time, the filter net is detachably connected to the lifting structure, which is convenient for replacing the filter net and can effectively improve the filtering effect. The filter net is raised and lowered by a hydraulic cylinder, which has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the sewage treatment equipment provided in Example 1 of the utility model.

[0017] Icons: 1- coagulation zone, 2- filtration zone, 3- flocculation zone, 4- sedimentation zone, 5- dosing hopper, 6- stirring motor, 7- stirring rod, 8- stirring blade, 9- filter screen, 10- mounting bracket, 11- hydraulic cylinder, 12- scraper motor, 13- rotating shaft, 14- scraper plate, 15- sedimentation plate, 16- baffle, 17- water inlet, 18- water inlet pipe, 19- water inlet valve, 20- water outlet, 21- water outlet pipe, 22- water outlet valve, 23- mud discharge pipe, 24- mud discharge valve, 25- mud discharge pump. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example 1

[0024] like Figure 1As shown, this embodiment provides a sewage treatment equipment, including a treatment pool, which is composed of a coagulation zone 1, a filtration zone 2, a flocculation zone 3 and a sedimentation zone 4 from left to right. The coagulation zone 1 and the flocculation zone 3 are both provided with a dosing hopper 5. The filtration zone 2 includes a filter screen 9 and a lifting mechanism. The lifting mechanism includes a mounting frame 10 and a hydraulic cylinder 11 fixedly mounted on the mounting frame 10. The piston rod of the hydraulic cylinder 11 passes through the mounting frame 10 and is detachably connected to the filter screen 9. Through the cooperation of the coagulation zone 1, the filtration zone 2, the flocculation zone 3 and the sedimentation zone 4, the sewage is first coagulated to absorb the larger pollutants therein, and then filtered through the filtration zone 2 to intercept the coagulated substances, and then the sewage is flocculated to flocculate the coagulated precipitated small alum flowers and fine suspended pollutants into large flocs, and the flocs are allowed to settle in the sedimentation zone 4. The treated liquid is discharged from the upper part of the sedimentation zone 4 to complete the sewage treatment process. According to the coagulation-filtration-flocculation-sedimentation, the sewage can be effectively purified and the sewage treatment effect can be improved. In addition, the filter screen 9 is connected with a lifting mechanism, and the filter screen 9 is raised by the lifting mechanism, which makes it convenient for the staff to clean the filter screen 9. At the same time, the filter screen 9 is detachably connected to the lifting structure, which is convenient for replacing the filter screen 9 and can effectively improve the filtering effect. The filter screen 9 is lifted and lowered by the hydraulic cylinder 11, which has a simple structure and convenient operation. In other embodiments, the bottom surface of the coagulation zone 1 and the flocculation zone 3 can be set as a slope, and a sewage outlet is set at the lowest point of the slope, so that some substances precipitated in the area can be discharged. Among them, the coagulation zone 1 is provided with a water inlet 17, the water inlet 17 is connected to a water inlet pipe 18, and a water inlet valve 19 is set on the water inlet pipe 18. A water outlet 20 is provided at the upper part of the sedimentation zone 4, the water outlet 20 is connected to a water outlet pipe 21, and a water outlet valve 22 is set on the water outlet pipe 21.

[0025] In this embodiment, the coagulation zone 1 and the flocculation zone 3 are further provided with a stirring assembly, which includes a stirring motor 6, a stirring rod 7 and a plurality of stirring blades 8, wherein the plurality of stirring blades 8 are evenly installed on the stirring rod 7, and the output end of the stirring motor 6 is connected to the stirring rod 7. The sewage in the coagulation zone 1 and the flocculation zone 3 is stirred by the stirring assembly, which is beneficial to improving the mixing effect of the sewage with the coagulant and the flocculant, thereby enhancing the degree of purification of the sewage by the coagulant and the flocculant, so as to improve the sewage treatment effect. When in use, the stirring motor 6 drives the stirring rod 7 to rotate, and the stirring rod 7 drives the stirring blades 8 to rotate, and the stirring blades 8 stir the sewage, which can not only improve the coagulation and flocculation speed, but also improve the coagulation and flocculation effect, and has high practicality.

[0026] In this embodiment, the filter screen 9 is U-shaped. When the coagulated sewage passes through the filter screen 9, the large particles of pollutants generated by coagulation are trapped on the filter screen 9. This shape can prevent the pollutants from falling from the filter screen 9 into the flocculation area 3 during the lifting process of the filter screen 9, which helps to improve the filtering effect.

[0027] In this embodiment, the sedimentation area 4 is provided with a scraper assembly, which includes a scraper blade 14, a rotating shaft 13 and a scraper motor 12, one end of the rotating shaft 13 is connected to the output end of the scraper motor 12, and the other end of the rotating shaft 13 is fixedly connected to the scraper blade 14. The scraper motor 12 drives the rotating shaft 13 to rotate, and the rotating shaft 13 drives the scraper blade 14 to rotate. The scraper blade 14 rotates to scrape the sediment at the bottom of the sedimentation area 4, so as to facilitate the discharge of the sediment from the sedimentation area and improve the convenience of cleaning the sedimentation area 4. Among them, the bottom of the sedimentation area 4 can be set to a funnel shape, the scraper blade 14 is V-shaped, and the angle of the scraper blade 14 is the same as the angle of the bottom of the sedimentation area 4. The funnel-shaped bottom is convenient for sedimentation to gather, and the V-shaped scraper blade 14 can improve the degree of cleaning of the sediment. A mud discharge port is provided at the bottom of the sedimentation area 4, and the mud discharge port is connected to a mud discharge pipe 23, and the other end of the mud discharge pipe 23 is connected to a mud discharge pump 25, and a mud discharge valve 24 is provided on the mud discharge pipe 23. The mud discharge valve 24 is opened, and the mud discharge pump 25 is started, and the mud discharge pump 25 is used to discharge the sludge in the sedimentation area 4, and the mud scraper 14 is used to scrape the sludge adhering to the bottom of the sedimentation area 4, so as to improve the discharge effect and discharge speed of the mud discharge pump 25 on the sludge, which is conducive to improving the speed of cleaning the sedimentation area 4.

[0028] In this embodiment, a sedimentation plate 15 is provided on the upper part of the sedimentation zone 4, and the sedimentation plate 15 is assembled from a plurality of polypropylene honeycomb inclined tubes. The polypropylene honeycomb inclined tube is a sedimentation tank filler designed and developed based on the "shallow sedimentation" theory. The filler has a large wet perimeter, a small hydraulic radius, a good laminar flow state during operation, and the particle sedimentation is not disturbed by turbulence. It can accelerate the separation of particles from water and shorten the sedimentation distance of particles, and can improve the sedimentation speed and sedimentation quality. Among them, the water outlet 20 of the sedimentation zone 4 is located above the sedimentation plate 15.

[0029] In this embodiment, a baffle 16 is provided on one side of the sedimentation plate 15 close to the flocculation zone 3, and the top of the baffle 16 is connected to the inner top surface of the sedimentation zone 4. Since the water flow speed of the flocculation zone 3 is relatively fast under the action of the stirring assembly, the water flow speed is relatively large when it enters the sedimentation zone 4, making it difficult for the substances in the water to settle. By providing the baffle 16, when the water flow in the flocculation zone 3 enters the sedimentation zone 4, the water flow will impact the baffle 16, and the baffle 16 is used to decelerate the water flow, so that the substances in the water can settle more easily in the sedimentation zone 4, which helps to speed up the sedimentation speed.

[0030] The working principle of a sewage treatment equipment is as follows: sewage is introduced from the water inlet pipe 18, the sewage enters from the water inlet 17 of the coagulation zone 4, and at the same time, coagulant is added from the dosing hopper 5 of the coagulation zone 1, the stirring motor 6 of the coagulation zone 1 is started, the stirring motor 6 drives the stirring rod 7 to rotate, the stirring rod 7 drives the stirring blade 8 to rotate, the stirring blade 8 stirs the sewage so that the sewage and the coagulant are fully mixed to improve the coagulation effect, and the sewage treated in the coagulation zone enters the filtration zone 2 from the upper part of the coagulation zone 1, and the sewage is filtered. The flocculation zone 3 is filtered on the filter screen 9 of the flocculation zone 2, and the filtered sewage enters the flocculation zone 3 from the bottom of the filtration zone 2. Flocculant is added to the dosing hopper 5 of the flocculation zone 3, and the stirring component is started for stirring. The flocculated sewage enters the sedimentation zone 4 from the upper part of the flocculation zone 3, and the sewage enters the sedimentation zone 4 after being decelerated by the baffle 16. The sedimentation plate 15 of the sedimentation zone 4 is used to accelerate the separation speed of particles and water in the sewage and shorten the sedimentation time. The sewage passing through the sedimentation plate 15 is discharged from the outlet 20 at the upper part of the sedimentation zone 4.

[0031] When the filter screen 9 in the filter area 2 needs to be cleaned, the hydraulic cylinder 10 can be started, and the hydraulic cylinder 10 drives the filter screen 9 to move upward, so that the filter screen 9 extends out of the filter area 2, so that the staff can clean the impurities on the filter screen 9. At the same time, if the filter screen 9 is damaged, the filter screen 9 can be replaced, thereby effectively improving the filtering effect.

[0032] When the sedimentation area 4 needs to be cleaned, the sludge discharge valve 24 is opened, the sludge discharge pump 25 and the sludge scraper motor 12 are started, and the sludge scraper motor 12 is used to drive the scraper plate 14 to rotate, so that the sludge at the bottom of the sedimentation area 4 is loosened, and then the sludge discharge pump 25 is used to discharge the sludge from the sedimentation area 4. This not only speeds up the sludge cleaning speed, but also improves the sludge cleaning quality, so as to facilitate the secondary use of the sewage equipment.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sewage treatment equipment, characterized in that: It includes a treatment pool, which includes a coagulation zone, a filtration zone, a flocculation zone and a sedimentation zone from left to right. The coagulation zone and the flocculation zone are both provided with a dosing hopper. The filtration zone includes a filter screen and a lifting mechanism. The lifting mechanism includes a mounting frame and a hydraulic cylinder fixedly mounted on the mounting frame. The piston rod of the hydraulic cylinder passes through the mounting frame and is detachably connected to the filter screen.

2. The sewage treatment equipment according to claim 1, characterized in that: The coagulation zone and the flocculation zone are also provided with a stirring assembly, which includes a stirring motor, a stirring rod and a plurality of stirring blades. The plurality of stirring blades are evenly installed on the stirring rod, and the output end of the stirring motor is connected to the stirring rod.

3. The sewage treatment equipment according to claim 1, characterized in that: The filter screen is U-shaped.

4. The sewage treatment equipment according to claim 1, characterized in that: The sedimentation area is provided with a scraper assembly, which includes a scraper plate, a rotating shaft and a scraper motor. One end of the rotating shaft is connected to the output end of the scraper motor, and the other end of the rotating shaft is fixedly connected to the scraper plate.

5. The sewage treatment equipment according to claim 4, characterized in that: The bottom of the sedimentation area is funnel-shaped, the scraper blade is V-shaped, and the included angle of the scraper blade is the same as the included angle of the bottom of the sedimentation area.

6. The sewage treatment equipment according to claim 1, characterized in that: A sedimentation plate is arranged on the upper part of the sedimentation zone, and the sedimentation plate is assembled from a plurality of polypropylene honeycomb inclined tubes.

7. The sewage treatment equipment according to claim 6, characterized in that: A baffle is arranged on one side of the sedimentation plate close to the flocculation zone, and the top of the baffle is connected to the inner top surface of the sedimentation zone.

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