CN218403755U - Sludge thickening tank - Google Patents
Sludge thickening tank Download PDFInfo
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- CN218403755U CN218403755U CN202222956023.2U CN202222956023U CN218403755U CN 218403755 U CN218403755 U CN 218403755U CN 202222956023 U CN202222956023 U CN 202222956023U CN 218403755 U CN218403755 U CN 218403755U
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- tank body
- air flotation
- sludge
- flotation tank
- floating mud
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Abstract
The utility model discloses a sludge concentration tank, which relates to the field of sewage treatment and comprises an air flotation tank body, wherein the bottom of the air flotation tank body is provided with a sludge discharge pipe, the side wall of the lower part of the air flotation tank body is provided with a clear liquid discharge passage, a suspension-arranged flow guide chamber is arranged in the air flotation tank body, two ends of the flow guide chamber are in an open shape, a transmission shaft is arranged in the flow guide chamber, the upper end of the transmission shaft is connected with the motor power at the top of the air flotation tank body, and the lower end of the transmission shaft is connected with a bottom sludge scraper plate; the upper part of the air flotation tank body is provided with a floating mud collecting tank, the floating mud collecting tank is connected with the inner wall of the air flotation tank body, the lower part of the floating mud collecting tank is provided with a floating mud discharge pipe, a floating mud scraper blade is arranged above the floating mud collecting tank, and the floating mud scraper blade is connected with a transmission shaft; the diversion chamber is connected with a mixer through a pipeline, and a flocculating agent adding port, a sludge water inlet and a dissolved gas water inlet are arranged on the mixer. The utility model discloses can avoid high concentration mud to pile up in the water conservancy diversion room, effectively improve the concentration efficiency of high concentration sludge water.
Description
Technical Field
The utility model relates to a sewage treatment field especially relates to a sludge thickening tank.
Background
Granule weight in the mud mixed liquor is not of uniform size, can subside in the bottom of the pool through weight to the heavier mud of granule, can adopt the air flotation concentration method to concentrate the separation to the mud that the granule is lighter usually, and the air flotation concentration method lets in a large amount of intensive microbubble in the mud mixed liquor, makes it and the adhesion of mud granule looks, forms "gas-mud" floc mixture body that whole proportion is less than water, relies on buoyancy come-up to the surface of water, and then separates the mud that the granule is lighter in the mud mixed liquor.
As shown in fig. 1, the domestic common circular sludge concentration air-flotation device comprises an air-flotation tank body 1, a clear liquid discharge channel 3 is formed in the side wall of the lower part of the air-flotation tank body, a flow guide chamber 4 is arranged at the bottom of the air-flotation tank body 1, a bottom sludge scraper 7 is arranged on the outer side of the flow guide chamber 4, the bottom sludge scraper 7 is driven by a motor 6 above the air-flotation tank body 1, and the bottom of the flow guide chamber 4 is connected with a sludge water inlet pipe. The concentration working process comprises the following steps: sludge water and gas-dissolved water (clear water contains high-concentration gas) are introduced into the diversion chamber 4 through a sludge water inlet pipe, microbubbles carry sludge with lighter particles to flow upwards, and the sludge with heavier particles is settled at the bottom of the tank.
The sludge thickener has the following disadvantages: because the bottom of the diversion chamber 4 is of a closed structure, serious overload phenomenon can occur to equipment when high-concentration sludge added with a flocculating agent is concentrated, namely the high-concentration sludge cannot flow out of the diversion chamber 4 along with water flow, and can form aggregation at the bottom and the side wall of the diversion chamber 4, so that the diversion chamber 4 releases air water to block up, the bubbles of a core product of air floatation are greatly reduced, and the sludge concentration efficiency is greatly reduced.
SUMMERY OF THE UTILITY MODEL
Based on the above problem, the utility model aims at providing a sludge thickening tank, the utility model discloses a following technical scheme:
the utility model provides a sludge concentration tank, which comprises an air flotation tank body, wherein a sludge discharge pipe is arranged at the bottom of the air flotation tank body, a clear liquid discharge passage is arranged on the side wall of the lower part of the air flotation tank body, a suspension-arranged flow guide chamber is arranged in the air flotation tank body, two ends of the flow guide chamber are in an open shape, a transmission shaft is arranged in the flow guide chamber, the upper end of the transmission shaft is connected with the motor power at the top of the air flotation tank body, and the lower end of the transmission shaft is connected with a bottom sludge scraper plate;
a floating mud collecting tank is arranged at the upper part of the air floatation tank body and connected with the inner wall of the air floatation tank body, a floating mud discharge pipe is arranged at the lower part of the floating mud collecting tank, a floating mud scraper blade is arranged above the floating mud collecting tank and connected with the transmission shaft;
the flow guide chamber is connected with a mixer through a pipeline, and a flocculating agent adding port, a sludge water inlet and a dissolved gas water inlet are arranged on the mixer.
Preferably, a water outlet of the clear liquid discharge channel extends to a clear water collecting tank, and the clear water collecting tank is positioned on the outer side of the air flotation tank body;
the air dissolving device comprises an air dissolving tank, an air compressor and a pressure pump, the water inlet of the pressure pump is connected with the clear water collecting tank, and the water outlet of the pressure pump is connected with the air dissolving tank.
Preferably, a homogenizing pipe is arranged inside the mixer, one end of the homogenizing pipe is of a closed structure, the other end of the homogenizing pipe is communicated with the flocculating agent adding port, and a plurality of holes are formed in the outer wall of the homogenizing pipe.
Preferably, the bottom of the air flotation tank body is conical, and the sludge discharge pipe is connected to the middle position of the bottom of the air flotation tank body.
Preferably, the diversion chamber is connected with the air flotation tank body through a plurality of connecting plates.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model discloses can be greater than the lower port that the bubble floc of water directly falls into the bottom of the pool through the water conservancy diversion room with the proportion, and the micro bubble floc that the proportion is less than water then floats to the top of the pool through the up end of water conservancy diversion room, avoids high concentration mud to pile up in the water conservancy diversion room, can effectively improve the concentration efficiency of high concentration sludge water.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a schematic structural view of a conventional sludge thickener;
fig. 2 is a schematic structural view of the sludge thickener of the present invention.
Description of reference numerals: 1. an air flotation tank body; 2. a sludge discharge pipe; 3. a clear liquid discharge passage; 4. a flow guide chamber; 401. a connecting plate; 5. a drive shaft; 6. a motor; 7. a bottom mud scraper; 8. floating mud collecting tank; 9. a mud floating pipe; 10. a floating mud scraper; 11. a mixer; 1101. a flocculant addition port; 1102. a sludge water inlet; 1103. a dissolved gas water inlet; 1104. a material homogenizing pipe; 1105. opening a hole; 12. a clear water collecting tank; 13. a gas dissolving device; 1301. a dissolved air tank; 1302. an air compressor; 1303. a pressure pump.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that what is referred to
The device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.
As shown in fig. 2, the present embodiment discloses a sludge concentration tank, which includes an air flotation tank body 1, a sludge discharge pipe 2 is disposed at the bottom of the air flotation tank body 1, a clear liquid discharge passage 3 is disposed on a side wall of a lower portion of the air flotation tank body 1, a flow guide chamber 4 is disposed in the air flotation tank body 1, the flow guide chamber 4 is connected with the air flotation tank body 1 through a plurality of connecting plates 401, the flow guide chamber 4 is formed into a suspension state through the connecting plates 401, and then upper and lower ends of the flow guide chamber 4 are open.
A transmission shaft 5 is arranged in the flow guide chamber 4, the upper end of the transmission shaft 5 is in power connection with a motor 6 at the top of the air flotation tank body 1, and the lower end of the transmission shaft 5 is connected with a bottom mud scraper 7. The bottom of the air flotation tank body 1 can be designed to be conical, so that the bottom sludge is convenient to gather, and the sludge discharge pipe 2 is connected to the middle position of the conical bottom of the air flotation tank body 1.
The upper portion of air supporting cell body 1 is provided with floats mud collecting vat 8, floats mud collecting vat 8 and 1 wall connection in the air supporting cell body, and the lower part that floats mud collecting vat 8 is provided with floats mud calandria 9, and the top that floats mud collecting vat 8 is provided with floats mud scraper blade 10, floats mud scraper blade 10 and is connected with transmission shaft 5, drives when 5 pivoted of transmission shaft and floats mud scraper blade 10 and scrape into the mud that floats on 1 upper portion of air supporting cell body in floating mud collecting vat 8 to discharge through floating mud calandria 9. The floating mud discharge pipe 9 is arranged on the air flotation tank body 1, and the inner end of the floating mud discharge pipe 9 is communicated with the floating mud collecting tank 8.
The flow guide chamber 4 is connected with a mixer 11 outside the air flotation tank body 1 through a pipeline, and a flocculating agent adding port 1101, a sludge water inlet 1102 and a gas-dissolved water inlet 1103 are arranged on the mixer 11. The gas dissolving water inlet 1103 is connected with the gas dissolving device 13, the gas dissolving device 13 comprises a gas dissolving tank 1301, an air compressor 1302 and a pressure pump 1303, the water inlet of the pressure pump 1303 is connected with the clean water collecting tank 12, and the water outlet of the pressure pump 1303 is connected with the gas dissolving tank 1301. The air dissolving device 13 is operated in such a manner that water and compressed air generated by the air compressor 1302 are mixed in the air dissolving tank 1301 by the jet flow principle under the action of the pressurizing pump 1303, so that the air is dissolved in the water to a maximum extent, and the air is attempted to be saturated. The pressurized solution of the formed solution air is then fed through a line into the mixer 11.
In this embodiment, the air dissolving device 13 may utilize the purified water filtered by the concentration tank, specifically, the water outlet of the clear liquid discharge channel 3 extends to the clear water collecting tank 12, and the clear water collecting tank 12 is located outside the air flotation tank body 1; the clear water collecting tank 12 is connected to the air flotation tank body 1.
In order to uniformly mix the flocculant and the sewage, a refining pipe 1104 is arranged in the mixer 11, one end of the refining pipe 1104 is of a closed structure, the other end of the refining pipe 1104 is communicated with a flocculant adding port 1101, and a plurality of openings 1105 are formed in the outer wall of the refining pipe 1104.
The utility model is in operation; flocculating agent, dissolved air water and high concentration sludge water begin to take place the flocculation after mixing in blender 11, the flocculation process accompanies a large amount of microbubble of people, the microbubble that all bonds in the floc outside has produced the bubble floc, the bubble floc passes through the pipeline and enters into water conservancy diversion room 4 back, the specific gravity is greater than the direct lower port that passes through water conservancy diversion room 4 of bubble floc of water and falls into the bottom of the pool, and the specific gravity is less than the upper port of water then and floats to the top of the pool through water conservancy diversion room 4's upper port, and constantly gather at the top of the pool and form the mud slick. The floating mud is finally scraped into the floating mud collecting tank 8 by the floating mud scraper 10.
The above-mentioned embodiments are only described in the preferred embodiments of the present invention, but not limited to the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (5)
1. A sludge thickening tank is characterized in that: the device comprises an air flotation tank body (1), wherein a sludge discharge pipe (2) is arranged at the bottom of the air flotation tank body (1), a clear liquid discharge channel (3) is formed in the side wall of the lower part of the air flotation tank body (1), a suspension flow guide chamber (4) is arranged in the air flotation tank body (1), two ends of the flow guide chamber (4) are open, a transmission shaft (5) is arranged in the flow guide chamber (4), the upper end of the transmission shaft (5) is in power connection with a motor (6) at the top of the air flotation tank body (1), and the lower end of the transmission shaft (5) is connected with a bottom sludge scraper (7);
a floating mud collecting tank (8) is arranged at the upper part of the air floating tank body (1), the floating mud collecting tank (8) is connected with the inner wall of the air floating tank body (1), a floating mud discharging pipe (9) is arranged at the lower part of the floating mud collecting tank (8), a floating mud scraping plate (10) is arranged above the floating mud collecting tank (8), and the floating mud scraping plate (10) is connected with the transmission shaft (5);
the flow guide chamber (4) is connected with a mixer (11) through a pipeline, and a flocculating agent adding port (1101), a sludge water inlet (1102) and a dissolved gas water inlet (1103) are arranged on the mixer (11).
2. The sludge thickener of claim 1, wherein: a water outlet of the clear liquid discharge channel (3) extends to a clear water collecting tank (12), and the clear water collecting tank (12) is positioned on the outer side of the air flotation tank body (1);
dissolve gas water inlet (1103) and dissolve gas device (13) and be connected, dissolve gas device (13) including dissolving gas pitcher (1301), air compressor (1302) and force (forcing) pump (1303), the water inlet of force (forcing) pump (1303) with clear water collecting pit (12) are connected, the delivery port of force (forcing) pump (1303) with dissolve gas pitcher (1301) and connect.
3. The sludge thickener of claim 1, wherein: the mixer is characterized in that a homogenizing pipe (1104) is arranged inside the mixer (11), one end of the homogenizing pipe (1104) is of a closed structure, the other end of the homogenizing pipe is communicated with the flocculating agent adding port (1101), and a plurality of open holes (1105) are formed in the outer wall of the homogenizing pipe (1104).
4. The sludge thickener of claim 1, wherein: the bottom of the air flotation tank body (1) is conical, and the sludge discharge pipe (2) is connected to the middle position of the bottom of the air flotation tank body (1).
5. The sludge thickener of claim 1, wherein: the flow guide chamber (4) is connected with the air flotation tank body (1) through a plurality of connecting plates (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222956023.2U CN218403755U (en) | 2022-11-07 | 2022-11-07 | Sludge thickening tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222956023.2U CN218403755U (en) | 2022-11-07 | 2022-11-07 | Sludge thickening tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218403755U true CN218403755U (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222956023.2U Active CN218403755U (en) | 2022-11-07 | 2022-11-07 | Sludge thickening tank |
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| CN (1) | CN218403755U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116282315A (en) * | 2023-02-20 | 2023-06-23 | 宝航环境修复有限公司 | Air floatation device for soil leaching remediation |
-
2022
- 2022-11-07 CN CN202222956023.2U patent/CN218403755U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116282315A (en) * | 2023-02-20 | 2023-06-23 | 宝航环境修复有限公司 | Air floatation device for soil leaching remediation |
| CN116282315B (en) * | 2023-02-20 | 2023-08-11 | 宝航环境修复有限公司 | Air floatation device for soil leaching remediation |
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