Integrated water filtration and sludge concentration device

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to an integrated water filtration and sludge concentration device. Comprising a pretreatment tank, a first filter tank and a second filter tank, a first liquid inlet pipe is arranged on one side of the pretreatment tank, a first liquid outlet pipe is arranged on the other side of the pretreatment tank, the tail end of the first liquid outlet pipe is connected with one side of the first filter tank, a second liquid outlet pipe is arranged on the other side of the first filter tank, and the tail end of the second liquid outlet pipe is connected with one side of the second filter tank; a third liquid outlet pipe is arranged on the other side of the second filter tank, each of the first filter tank and the second filter tank comprises an aeration section and a sludge scraping section, a bubble releaser is arranged in the aeration section, a scraper is arranged at the top of the sludge scraping section, a sludge recovery tank is arranged at the bottom of the scraper, and the bubble releaser and the scraper are powered by an external power supply; the sewage treatment effect is relatively good.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, in particular to an integrated water filtration and sludge thickening device. Background Art

[0002] Domestic sewage, industrial wastewater, etc. need to be treated to meet the discharge standards before being discharged. Common sewage treatment methods include the activated sludge method and the biofilm method.

[0003] In the patent application with the publication number CN 216584288 U, a sludge scraping device for an air flotation sludge tank is disclosed. The sludge scraping device is installed at the upper end of the air flotation sludge tank. The sludge scraping device includes two horizontal sliding seats slidably installed along the length direction on both side edges at the upper end of the air flotation sludge tank. A horizontal beam is fixed between the two horizontal sliding seats. The horizontal sliding seats are driven by a horizontal reciprocating power device to slide at the upper end of the air flotation sludge tank so that the floating sludge is discharged from the sludge discharge port. A sludge scraping plate is installed at the lower end of the horizontal beam in a swingable manner, and the lower end of the sludge scraping plate faces downward. A deflection power device for driving the sludge scraping plate to deflect is installed on the horizontal beam. This sludge scraping device can better scrape away the sludge floating on the sewage surface and reduce the disturbance to the sludge.

[0004] In the above prior art, the sewage sludge is only subjected to air flotation once and no pretreatment is carried out, and the treatment effect is not good. Therefore, in view of the above deficiencies, this application proposes an integrated water filtration and sludge thickening device. Summary of the Utility Model

[0005] The purpose of the utility model is to propose an integrated water filtration and sludge thickening device with better sewage treatment effect.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An integrated water filtration and sludge thickening device includes a pretreatment tank, a first filtration tank and a second filtration tank. A first liquid inlet pipe is arranged on one side of the pretreatment tank, and a first liquid outlet pipe is arranged on the other side of the pretreatment tank. The end of the first liquid outlet pipe is connected to one side of the first filtration tank. A second liquid outlet pipe is arranged on the other side of the first filtration tank, and the end of the second liquid outlet pipe is connected to one side of the second filtration tank. A third liquid outlet pipe is arranged on the other side of the second filtration tank.

[0008] Both the first filtration tank and the second filtration tank include an aeration section and a sludge scraping section. Bubble release devices are arranged in the aeration section, and a scraper is arranged at the top of the sludge scraping section. A sludge recovery tank is arranged at the bottom of the scraper. The bubble release devices and the scraper are both powered by an external power supply.

[0009] Further, the aeration section includes a first aeration zone, a second aeration zone, a third aeration zone, and a fourth aeration zone. Baffle plates are provided between the first aeration zone, the second aeration zone, the third aeration zone, and the fourth aeration zone, and bubble release devices are provided in the first aeration zone, the second aeration zone, and the third aeration zone.

[0010] Further, the scraper conveyor is inclined, and the sludge recovery tank is arranged at the bottom of the upper end of the inclined scraper conveyor.

[0011] Further, both the bubble release device and the scraper conveyor are powered by an external power supply. Both the bubble release device and the scraper conveyor are purchased on the market. The bubble release device is used to introduce bubbles into the aeration section; the scraper conveyor is used to scrape the floating sludge out.

[0012] Further, the sludge recovery tank is inclined.

[0013] Further, the pretreatment tank includes a first pretreatment zone, a second pretreatment zone, and a third pretreatment zone. Outlet pipes are provided at the bottoms of the first pretreatment zone, the second pretreatment zone, and the third pretreatment zone, and valves are provided on the outlet pipes.

[0014] Further, partition plates are provided in the first pretreatment zone, the second pretreatment zone, and the third pretreatment zone.

[0015] Further, transparent observation windows are provided on the side walls of the first pretreatment zone, the second pretreatment zone, and the third pretreatment zone.

[0016] Further, a heating device is provided on the first liquid outlet pipe. An inlet pipe and an outlet pipe are provided on the heating device, and heat transfer pipes surrounding the first liquid outlet pipe are provided inside.

[0017] Compared with the prior art, the present utility model has at least one of the following beneficial effects:

[0018] 1. The present utility model is provided with a pretreatment tank, a first filtration tank, and a second filtration tank. First, the sewage is pretreated, and then the pretreated sewage undergoes two-stage air flotation for sludge removal, enhancing the sewage treatment effect.

[0019] 2. The first aeration zone, the second aeration zone, the third aeration zone, and the fourth aeration zone are provided, enabling aeration in zones, increasing the contact area between the sewage and air, thereby enhancing the air flotation of the sludge and causing the sludge in the sewage to float upwards as much as possible.

[0020] 3. The scraper conveyor is inclined, the sludge recovery tank is inclined, and the sludge recovery tank is arranged at the bottom of the upper end of the inclined scraper conveyor. The scraper conveyor scrapes the floating sludge into the sludge recovery tank and then discharges it through the sludge recovery tank.

[0021] 4. The pretreatment tank includes a first pretreatment area, a second pretreatment area, and a third pretreatment area, which can precipitate large particulate sludge first to enhance the sewage treatment effect.

[0022] 5. Before entering the first filtration tank and the second filtration tank, if the sewage temperature is too low, the treatment effect will be poor. In this utility model, a heating device is provided on the first liquid outlet pipe, which can heat the relatively cold sewage before entering the first filtration tank and the second filtration tank, thereby enhancing the treatment effect. Brief Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of this utility model;

[0024] Figure 2 is a schematic structural diagram of the heating device of this utility model.

[0025] In the figure, 1 - pretreatment tank; 2 - first filtration tank; 3 - second filtration tank; 4 - first liquid inlet pipe; 5 - first liquid outlet pipe; 6 - second liquid outlet pipe; 7 - third liquid outlet pipe; 8 - aeration section; 9 - sludge scraping section; 10 - bubble release device; 11 - scraper; 12 - sludge recovery tank; 13 - first aeration area; 14 - second aeration area; 15 - third aeration area; 16 - fourth aeration area; 17 - baffle; 18 - first pretreatment area; 19 - second pretreatment area; 20 - third pretreatment area; 21 - transparent observation window; 22 - heating device; 23 - liquid inlet pipe; 24 - liquid outlet pipe; 25 - heat transfer pipe. Detailed Embodiment

[0026] As Figure 1-2 shown, in order to make the purpose, technical solution and advantages of this utility model clearer, the following further details this utility model in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not used to limit this utility model.

[0027] Embodiment

[0028] An integrated water filtration and sludge concentration device includes a pretreatment tank 1, a first filtration tank 2, and a second filtration tank 3. A first liquid inlet pipe 4 is provided on one side of the pretreatment tank 1, and a first liquid outlet pipe 5 is provided on the other side of the pretreatment tank 1. The end of the first liquid outlet pipe 5 is connected to one side of the first filtration tank 2. A second liquid outlet pipe 6 is provided on the other side of the first filtration tank 2, and the end of the second liquid outlet pipe 6 is connected to one side of the second filtration tank 3. A third liquid outlet pipe 7 is provided on the other side of the second filtration tank 3.

[0029] Both the first filtration tank 2 and the second filtration tank 3 include an aeration section 8 and a sludge scraping section 9. A bubble release device 10 is arranged in the aeration section 8, and a scraper 11 is arranged at the top of the sludge scraping section 9. A sludge recovery tank 12 is arranged at the bottom of the scraper 11. Both the bubble release device 10 and the scraper 11 are powered by an external power supply. First, the sewage is pre-treated, and then the pre-treated sewage undergoes two-stage air flotation for sludge removal to enhance the sewage treatment effect.

[0030] More specifically, the aeration section 8 includes a first aeration area 13, a second aeration area 14, a third aeration area 15, and a fourth aeration area 16. Baffle plates 17 are arranged between the first aeration area 13, the second aeration area 14, the third aeration area 15, and the fourth aeration area 16. And bubble release devices 10 are arranged in the first aeration area 13, the second aeration area 14, and the third aeration area 15, which can perform aeration in zones, increasing the contact area between the sewage and air, thereby enhancing the air flotation of the soil and making the soil in the sewage float upwards as much as possible.

[0031] More specifically, the scraper 11 is inclined, the sludge recovery tank 12 is inclined, and the sludge recovery tank 12 is arranged at the bottom of the upper end of the inclined scraper 11. The scraper scrapes the floating sludge into the sludge recovery tank and then discharges it through the sludge recovery tank.

[0032] More specifically, the pre-treatment tank 1 includes a first pre-treatment area 18, a second pre-treatment area 19, and a third pre-treatment area 20. Outlet pipes are arranged at the bottoms of the first pre-treatment area 18, the second pre-treatment area 19, and the third pre-treatment area 20, and valves are arranged on the outlet pipes, which can precipitate large-particle sludge first to enhance the sewage treatment effect.

[0033] More specifically, partition plates are arranged in the first pre-treatment area 18, the second pre-treatment area 19, and the third pre-treatment area 20.

[0034] More specifically, transparent observation windows 21 are arranged on the side walls of the first pre-treatment area 18, the second pre-treatment area 19, and the third pre-treatment area 20, which is convenient for observing the internal sludge content.

[0035] More specifically, a temperature-raising device 22 is arranged on the first liquid outlet pipe 5. An inlet pipe 23 and an outlet pipe 24 are arranged on the temperature-raising device 22, and a heat transfer pipe 25 surrounding the first liquid outlet pipe 5 is arranged inside. Before entering the first filtration tank and the second filtration tank, if the sewage temperature is too low, the treatment effect will be poor. The present utility model arranges a temperature-raising device on the first liquid outlet pipe, which can raise the temperature of the relatively cold sewage before entering the first filtration tank and the second filtration tank, thereby enhancing the treatment effect.

[0036] Although the present utility model has been described herein with reference to a number of illustrative embodiments of the present utility model, it should be understood that those skilled in the art can design many other modifications and embodiments that will fall within the scope and spirit of the principles disclosed in this application. More specifically, within the scope of the disclosure, the drawings and the claims of this application, various variations and improvements can be made to the components and / or the layout of the subject combination layout. In addition to the variations and improvements made to the components and / or the layout, other uses will also be apparent to those skilled in the art.

Claims

1. An integrated water filtration and sludge concentration device, characterized in that: The invention comprises a pretreatment pool (1), a first filter pool (2) and a second filter pool (3), wherein a first liquid inlet pipe (4) is arranged on one side of the pretreatment pool (1), a first liquid outlet pipe (5) is arranged on the other side of the pretreatment pool (1), the end of the first liquid outlet pipe (5) is connected to one side of the first filter pool (2), a second liquid outlet pipe (6) is arranged on the other side of the first filter pool (2), the end of the second liquid outlet pipe (6) is connected to one side of the second filter pool (3), and a third liquid outlet pipe (7) is arranged on the other side of the second filter pool (3). The first filter tank (2) and the second filter tank (3) both comprise an aeration section (8) and a sludge scraping section (9); a bubble releaser (10) is arranged in the aeration section (8); a scraper (11) is arranged at the top of the sludge scraping section (9); a sludge recovery tank (12) is arranged at the bottom of the scraper (11); and both the bubble releaser (10) and the scraper (11) are powered by an external power supply.

2. The integrated water filtration and sludge concentration device according to claim 1, characterized in that: The aeration section (8) comprises a first aeration zone (13), a second aeration zone (14), a third aeration zone (15) and a fourth aeration zone (16); baffles (17) are arranged between the first aeration zone (13), the second aeration zone (14), the third aeration zone (15) and the fourth aeration zone (16); and bubble releasers (10) are arranged in the first aeration zone (13), the second aeration zone (14) and the third aeration zone (15).

3. The integrated water filtration and sludge concentration device according to claim 1, characterized in that: The scraper (11) is arranged at an inclination, and the sludge recovery tank (12) is arranged at the bottom of the inclined upper end of the scraper (11).

4. The integrated water filtration and sludge concentration device according to claim 1, characterized in that: The sludge recovery tank (12) is arranged at an inclination.

5. The integrated water filtration and sludge concentration device according to claim 1, characterized in that: The pretreatment tank (1) comprises a first pretreatment zone (18), a second pretreatment zone (19) and a third pretreatment zone (20), and mud outlet pipes are arranged at the bottom of the first pretreatment zone (18), the second pretreatment zone (19) and the third pretreatment zone (20), and valves are arranged on the mud outlet pipes.

6. The integrated water filtration and sludge concentration device according to claim 5, characterized in that: Partitions are arranged in the first pretreatment zone (18), the second pretreatment zone (19) and the third pretreatment zone (20).

7. The integrated water filtration and sludge concentration device according to claim 5, characterized in that: Transparent observation windows (21) are provided on the side walls of the first pretreatment area (18), the second pretreatment area (19) and the third pretreatment area (20).

8. The integrated water filtration and sludge concentration device according to claim 1, characterized in that: The first liquid outlet pipe (5) is provided with a temperature increasing device (22), the temperature increasing device (22) is provided with a liquid inlet pipe (23) and a liquid outlet pipe (24), and a heat transfer pipe (25) is provided inside the temperature increasing device (22) surrounding the first liquid outlet pipe (5).

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