Sewage treatment device

Abstract

The utility model discloses a sewage treatment device, belongs to the technical field of sewage treatment, and aims to solve the technical problem that sludge in sewage is inconvenient to collect for secondary treatment in the prior art. The sewage treatment device comprises a sewage treatment tank, the water storage cavity is arranged at one end in the sewage treatment box, and a filter plate is arranged at the top of the water storage cavity; the slope plate is arranged at one end, far away from the water storage cavity, in the sewage treatment box, the slope plate inclines towards the water storage cavity, and the lower end of the slope plate is aligned with the filter plate; the slope plate is arranged on the upper surface of the sewage treatment tank, the mud blocking convex strips are arranged on the upper surface of the slope plate, the mud blocking convex strips are horizontally arranged, the end wall of the end, facing the high position of the slope plate, of the sewage treatment tank is provided with flow dividing groove holes, and the flow dividing groove holes are located above the slope plate. The sewage treatment device not only realizes reduction, harmlessness and stabilization treatment of sludge in sewage, but also realizes reasonable utilization of resources, and achieves the purpose of reducing pollutant discharge.

Description

Technical Field

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

[0002] Wastewater treatment is the process of purifying wastewater to meet water quality requirements for discharge into a water body or reuse. Sewage is generated to varying degrees in various sectors, including construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscapes, healthcare, and catering. Treatment is essential to protect water resources and reduce environmental and aquatic pollution.

[0003] With the development of cities, the amount of sewage generated has gradually increased, and with the improvement of sewage treatment rate, the sludge production has become larger and larger. If it is not thoroughly treated and controlled, it will cause serious secondary pollution and great harm to the environment. In the existing sewage treatment, physical methods such as sedimentation, grid interception, filtration, etc., chemical methods such as adding chemical agents to react with pollutants in water to convert them into harmless substances or easily separable substances, or biological methods such as using the metabolic action of microorganisms to remove organic pollutants in water are usually used for sewage treatment. However, in the above-mentioned sewage treatment methods, there is a problem that the sludge in the sewage is not easy to collect for secondary treatment. For this reason, the present application proposes a sewage treatment device. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a sewage treatment device, which aims to solve the technical problem that the sludge in the sewage is not easy to collect for secondary treatment under the existing technology.

[0005] Technical Solution

[0006] In order to solve the above technical problems, the utility model provides a sewage treatment device, including a sewage treatment tank; a water storage chamber arranged at one end of the sewage treatment tank, and a filter plate is arranged on the top of the water storage chamber; a slope plate arranged in the sewage treatment tank at one end away from the water storage chamber, the slope plate is inclined toward the water storage chamber, and the lower end of the slope plate is aligned with the filter plate; mud guard ridges are arranged on the upper surface of the slope plate, the mud guard ridges are arranged horizontally, and a plurality of mud guard ridges are provided.

[0007] Preferably, a diversion slot is provided on the end wall of the sewage treatment tank at one end facing the higher end of the slope plate, the diversion slot is located above the slope plate, and a plurality of diversion slots are provided side by side, and a conveying mechanism for conveying sewage toward the plurality of diversion slots is provided on the end face of the sewage treatment tank.

[0008] Preferably, the conveying mechanism includes a diverter plate fixed on the end face of the sewage treatment tank and a conveying pipe connected to the end of the diverter plate away from the sewage treatment tank, and multiple diverter channels are opened in the diverter plate, and the multiple diverter channels are respectively connected to multiple diverter slots, and the conveying pipe is connected to the multiple diverter channels.

[0009] Preferably, a sludge discharge slot is provided on the side wall of the sewage treatment tank, the inner bottom wall of the sludge discharge slot is flush with the upper surface of the slope plate and the filter plate, and the sewage treatment tank is provided with a dredging mechanism for pushing sludge out of the sludge discharge slot.

[0010] Preferably, the dredging mechanism includes a slide rail fixed above the sewage treatment tank, a scraper arranged at the bottom of the slide rail, and a driving mechanism arranged on the slide rail for driving the scraper to move closer to or away from the silt discharge groove. A push bar is provided at the bottom of the scraper, and the push bar is in sliding contact with the upper surface of the slope plate and the filter plate. An adapter groove is provided at the bottom of the push bar for sliding engagement with the mud guard protrusion, and the push bar protrudes from the scraper surface and can be embedded in the silt discharge groove.

[0011] Preferably, the driving mechanism includes a rail groove opened on the slide rail, a slider slidably embedded in the rail groove, a screw rod rotatably installed in the rail groove, and a first motor installed at the end of the slide rail for driving the screw rod to rotate. The slider is threadedly engaged with the screw rod, and a connecting rod is fixedly connected between the slider and the scraper.

[0012] Preferably, a sludge collecting box is provided on the side wall of the sewage treatment tank, a sludge discharge pipe is provided at the bottom of one end of the side wall of the sludge collecting box, a drainage pipe connected to the water storage chamber is provided at the bottom of the side wall of the sewage treatment tank, a screw conveying paddle is horizontally installed on the bottom of the sludge collecting box, and a second motor for driving the screw conveying paddle to rotate is installed at the end of the sludge collecting box.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model uses an inclined slope plate and a conveying mechanism, so that sewage is conveyed from a conveying pipe to the diversion plate, and after being diverted by multiple diversion channels, it slowly flows into the sewage treatment box through multiple diversion slots. The diverted sewage slowly flows downward from the high point of the slope plate. During the flow, multiple mud retaining ribs can intercept the sludge and impurities in the sewage, and achieve the purpose of preliminary mud and impurity removal. Then the sewage flows to the filter plate, and the filter plate is used to remove mud and impurities from the sewage for a second time. The sewage that has been desilted and de-impurized falls into the water storage chamber, is collected, and can be discharged from the drain pipe. During the entire sewage treatment process, the characteristics of the slow flow of sewage and the dead weight of the sludge are adopted to achieve the process of reducing, stabilizing and harmlessly treating the sludge in the sewage, and has a good sewage treatment effect.

[0016] In the utility model, through the setting of the dredging mechanism, the driving mechanism is used to drive the scraper to slide along the surface of the slope plate and the filter plate, so that the sludge impurities blocked by the mud-blocking ridges on the slope plate surface and the sludge impurities filtered out from the filter plate can be pushed from the sludge discharge groove to the sludge collecting box for accumulation. By adding biological enzymes in the sludge collecting box for enzymatic hydrolysis and other comprehensive biochemical reactions, the sludge is degraded into a carbon source for the denitrification reaction. While the sludge is reduced, organic fertilizer is obtained. By starting the second motor to drive the spiral conveying paddle, the organic waste is discharged and collected from the sludge discharge pipe, thereby realizing energy recovery. Furthermore, the sludge treatment device not only realizes the reduction, harmlessness and stabilization of sludge in sewage, but also realizes the rational utilization of resources, thereby achieving the purpose of reducing pollution emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a structural diagram of the sewage treatment tank in the utility model;

[0020] Figure 3 It is a structural diagram of the dredging mechanism in the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the silt collecting box in the utility model;

[0022] Figure 5 It is a cross-sectional view of the diverter plate in the utility model;

[0023] Figure 6 This is a schematic diagram of the end structure of the scraper in the utility model.

[0024] The marks in the attached figure are: 1. sewage treatment tank; 2. slope plate; 3. mud guard rib; 4. water storage chamber; 5. filter plate; 6. diversion slot; 7. conveying mechanism; 8. dredging mechanism; 9. silt collecting box; 10. silt discharge pipe; 11. drainage pipe; 12. silt discharge slot; 13. slide rail; 14. scraper; 15. driving mechanism; 16. diverter plate; 17. conveying pipe; 18. rail groove; 19. slider; 20. screw rod; 21. first motor; 22. connecting bar; 23. push bar; 24. adapter slot; 25. screw conveyor paddle; 26. second motor; 27. diversion channel. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] This embodiment provides a sewage treatment device, the structural diagram of which is as follows Figures 1-6 The hopper 2 is provided with a filter plate 5 on the top of the hopper 2, and the filter plate 5 is provided on the top of the hopper 2.

[0027] In this embodiment, a diversion slot 6 is provided on the end wall of the sewage treatment tank 1 facing the upper end of the slope plate 2. The diversion slot 6 is located above the slope plate 2, and a plurality of diversion slots 6 are provided side by side. A conveying mechanism 7 for conveying sewage toward the plurality of diversion slots 6 is provided on the end surface of the sewage treatment tank 1. The conveying mechanism 7 includes a diversion plate 16 fixed on the end surface of the sewage treatment tank 1 and a conveying pipe 17 connected to the end of the diversion plate 16 away from the sewage treatment tank 1. A plurality of diversion channels 27 are provided in the diversion plate 16. The plurality of diversion channels 27 are provided in the diversion plate 16. The diversion channels 27 are respectively connected to the multiple diversion slots 6, and the delivery pipe 17 is connected to the multiple diversion channels 27. The sewage is transported to the diversion plate 16 by the delivery pipe 17, and after being diverted by the multiple diversion channels 27, it can slowly flow into the sewage treatment tank 1 through the multiple diversion slots 6. The diverted sewage slowly flows downward from the high point of the slope plate 2. Compared with the sewage being directly discharged to the top of the slope plate 2, this method of diverting and transporting the sewage can slow down the flow rate of the sewage, which is beneficial to the interception of sludge in the sewage by the mud retaining ribs 3.

[0028] In a further embodiment, a silt discharge slot 12 is provided on the side wall of the sewage treatment tank 1, and the inner bottom wall of the silt discharge slot 12 is flush with the upper surface of the slope plate 2 and the filter plate 5. A silt removal mechanism 8 is provided on the sewage treatment tank 1 for pushing the sludge out of the silt discharge slot 12. The silt removal mechanism 8 includes a slide rail 13 fixed above the sewage treatment tank 1, a scraper 14 provided at the bottom of the slide rail 13, and a driving mechanism 15 provided on the slide rail 13 for driving the scraper 14 to move close to or away from the silt discharge slot 12. A push strip 23 is provided at the bottom of the scraper 14, and the push strip 23 is in sliding contact with the upper surface of the slope plate 2 and the filter plate 5. An adapter groove 24 is provided at the bottom of the push strip 23 for sliding engagement with the mud retaining convex strip 3, and the push strip 23 protrudes The surface of the scraper 14 can be embedded in the silt discharge groove 12. The driving mechanism 15 includes a rail groove 18 opened on the slide rail 13, a slider 19 slidably embedded in the rail groove 18, a screw rod 20 rotatably installed in the rail groove 18, and a first motor 21 installed at the end of the slide rail 13 for driving the screw rod 20 to rotate. The slider 19 is threadedly engaged with the screw rod 20. A connecting bar 22 is fixedly connected between the slider 19 and the scraper 14. Starting the first motor 21 drives the screw rod 20 to rotate, driving the slider 19 to drive the scraper 14 to slide along the surface of the slope plate 2 and the filter plate 5, and can push the sludge impurities blocked by the mud retaining ridges 3 on the surface of the slope plate 2 and the sludge impurities filtered out from the filter plate 5 out of the silt discharge groove 12.

[0029] Furthermore, a sludge collecting box 9 is provided on the side wall of the sewage treatment tank 1, and a sludge discharge pipe 10 is provided at the bottom of one end of the side wall of the sludge collecting box 9. The sludge collecting box 9 is used to collect the sludge discharged from the sludge discharge slot 12, and the sludge can be composted in the sludge collecting box 9 to prepare organic waste. The sludge discharge pipe 10 is used to discharge the sludge in the sludge collecting box 9. A drain pipe 11 connected to the water storage chamber 4 is provided at the bottom of the side wall of the sewage treatment tank 1. The drain pipe 11 is used to discharge the sewage collected in the water storage chamber 4. A screw conveying paddle 25 is horizontally installed on the bottom of the sludge collecting box 9 for rotation. A second motor 26 for driving the screw conveying paddle 25 to rotate is installed at the end of the sludge collecting box 9. Starting the second motor 26 drives the screw conveying paddle 25 to discharge and collect the organic waste from the sludge discharge pipe 10 to achieve energy recovery.

[0030] Working principle: When in use, the sewage is transported to the diversion plate 16 by the delivery pipe 17, and after being diverted by multiple diversion channels 27, it slowly flows into the sewage treatment tank 1 through multiple diversion slots 6. The diverted sewage slowly flows downward from the high point of the slope plate 2. During the flow, multiple mud retaining ribs 3 can intercept the sludge and impurities in the sewage, and achieve the purpose of preliminary mud and impurity removal. Then the sewage flows to the filter plate 5, and the filter plate 5 is used to remove mud and impurities from the sewage for the second time. The sewage that has been demudded and de-impurified falls into the water storage chamber 4 for collection and can be discharged from the drain pipe 11. During the entire sewage treatment process, the slow flow of sewage is combined with the characteristics of the sludge's own weight to achieve the process of reducing, stabilizing and harmlessly treating the sludge in the sewage, and has a good sewage treatment effect. Furthermore, by starting the first motor 21 to drive the screw 20 to rotate, the slider 19 is driven to drive the scraper 14 to slide along the surface of the slope plate 2 and the filter plate 5, the sludge impurities blocked by the mud retaining ridges 3 on the surface of the slope plate 2 and the sludge impurities filtered out from the filter plate 5 can be pushed from the sludge discharge groove 12 to the sludge collecting box 9 for accumulation, and by adding biological enzymes in the sludge collecting box 9 for enzymatic hydrolysis and other comprehensive biochemical reactions, the sludge is degraded into a carbon source for the denitrification reaction, and organic fertilizer is obtained while the sludge is reduced. By starting the second motor 26 to drive the screw conveying paddle 25, the organic waste is discharged and collected from the sludge discharge pipe 10 to realize energy recovery. Furthermore, the sludge treatment device not only realizes the reduction, harmlessness and stabilization of sludge in sewage, but also realizes the rational utilization of resources, thereby achieving the purpose of reducing pollution emissions.

[0031] All technical features in this embodiment can be freely combined according to actual needs.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sewage treatment device, characterized in that: include: Sewage treatment tank (1); A water storage chamber (4) is provided at one end of the sewage treatment tank (1), and a filter plate (5) is provided on the top of the water storage chamber (4); A slope plate (2) is provided in the sewage treatment tank (1) at one end away from the water storage chamber (4), the slope plate (2) being inclined toward the water storage chamber (4), and the lower end of the slope plate (2) being aligned with the filter plate (5); A mud-blocking ridge (3) is provided on the upper surface of the ramp plate (2); the mud-blocking ridge (3) is provided horizontally, and a plurality of mud-blocking ridges (3) are provided.

2. A sewage treatment device according to claim 1, characterized in that: A diversion slot hole (6) is provided on the end wall of the sewage treatment box (1) at one end facing the upper end of the slope plate (2). The diversion slot hole (6) is located above the slope plate (2), and a plurality of diversion slot holes (6) are provided side by side. A conveying mechanism (7) for conveying sewage toward the plurality of diversion slot holes (6) is provided on the end surface of the sewage treatment box (1).

3. A sewage treatment device according to claim 2, characterized in that: The conveying mechanism (7) comprises a diverter plate (16) fixed on the end surface of the sewage treatment tank (1) and a conveying pipe (17) connected to the end of the diverter plate (16) away from the sewage treatment tank (1), wherein a plurality of diverter channels (27) are provided in the diverter plate (16), the plurality of diverter channels (27) are respectively connected to a plurality of diverter slots (6), and the conveying pipe (17) is connected to the plurality of diverter channels (27).

4. A sewage treatment device according to claim 1, characterized in that: A sludge discharge slot (12) is provided on the side wall of the sewage treatment tank (1), the inner bottom wall of the sludge discharge slot (12) is flush with the upper surface of the slope plate (2) and the filter plate (5), and a dredging mechanism (8) for pushing sludge out of the sludge discharge slot (12) is provided on the sewage treatment tank (1).

5. A sewage treatment device according to claim 4, characterized in that: The desilting mechanism (8) comprises a slide rail (13) fixed above the sewage treatment tank (1), a scraper (14) arranged at the bottom of the slide rail (13), and a driving mechanism (15) arranged on the slide rail (13) for driving the scraper (14) to move closer to or away from the silt discharge slot (12). A push bar (23) is provided at the bottom of the scraper (14), and the push bar (23) is in sliding contact with the upper surface of the slope plate (2) and the filter plate (5). An adapting groove (24) is provided at the bottom of the push bar (23) for sliding engagement with the mud retaining protrusion (3), and the push bar (23) protrudes from the surface of the scraper (14) and can be embedded in the silt discharge slot (12).

6. A sewage treatment device according to claim 5, characterized in that: The driving mechanism (15) comprises a rail groove (18) provided on the slide rail (13), a slider (19) slidably embedded in the rail groove (18), a screw rod (20) rotatably installed in the rail groove (18), and a first motor (21) installed at the end of the slide rail (13) for driving the screw rod (20) to rotate. The slider (19) and the screw rod (20) are threadedly engaged, and a connecting rod (22) is fixedly connected between the slider (19) and the scraper (14).

7. A sewage treatment device according to claim 4, characterized in that: The sewage treatment tank (1) is provided with a sludge collecting box (9) on the side wall, a sludge discharge pipe (10) is provided at the bottom of one end of the side wall of the sewage treatment tank (9), a drainage pipe (11) communicating with the water storage chamber (4) is provided at the bottom of the side wall of the sewage treatment tank (1), a screw conveying paddle (25) is horizontally rotatably installed at the bottom of the inner side of the sludge collecting box (9), and a second motor (26) for driving the screw conveying paddle (25) to rotate is installed at the end of the sludge collecting box (9).

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