CN218688128U

CN218688128U - Structure is collected to biological trickling filter impurity

Info

Publication number: CN218688128U
Application number: CN202222965901.7U
Authority: CN
Inventors: 黄海忠; 李小华
Original assignee: Wuxi Green Film Construction Engineering Co ltd
Current assignee: Wuxi Green Film Construction Engineering Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-03-24
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses an impurity collecting structure of a biological trickling filter, which comprises a trickling filter, wherein the bottom of the trickling filter is provided with a deposition chamber for collecting deposited impurities, a floating chamber for collecting floating impurities and an accumulation chamber for accumulating nutrient solution; a liquid guide structure is arranged above the deposition chamber, and nutrient solution and impurities dripped in the trickling filtration tower fall into the deposition chamber after passing through the liquid guide structure; the upper end of the sedimentation chamber is communicated with the upper end of the floating chamber through a first communication structure, the liquid level in the floating chamber is lower than the first communication structure, and nutrient solution and floating impurities in the sedimentation chamber enter the floating chamber through the first communication structure; the lower end of the floating chamber is communicated with the accumulation chamber through a second communication structure, so that the nutrient solution in the floating chamber enters the accumulation chamber; the liquid level in the floating chamber is higher than the height of the second communicating structure to avoid floating impurities in the floating chamber entering the accumulation chamber. The utility model discloses can collect the sedimentary impurity in the nutrient solution respectively with floating impurity, avoid the packing layer to block up.

Description

Structure is collected to biological trickling filter impurity

Technical Field

The utility model relates to a bio-trickling filter technical field especially relates to a structure is collected to bio-trickling filter impurity.

Background

When low-concentration organic waste gas is treated, a biological trickling filter is generally required. The biological trickling filter tower is internally provided with filler which is commonly used ceramic, sponge, hollow plastic balls and the like. Microorganisms are attached to the surface of the filler, nutrient solution is dripped from the top of the tower to be filtered, necessary nutrient substances are provided for the growth of the microorganisms, and the nutrient solution falling to the bottom of the tower is driven by the pump body to flow back to the top of the tower for recycling.

After the biological trickling filter is used for a long time, impurities are mixed into the nutrient solution, and the impurities are accumulated on the packing layer along with the circulation of the nutrient solution to cause blockage. To avoid clogging of the packing layer with impurities, it is common to provide a corresponding impurity collection or cleaning mechanism within the bio-trickling filter. Because the composition of impurity is mainly for the biomembrane that drops from the filler, and the biomembrane that drops can deposit in the nutrient solution, therefore current impurity is collected or clearance mechanism and is mostly all handled the deposit impurity, in fact, still may contain some float impurity in the impurity, like the aged sponge filler that drops, and current impurity is collected or clearance mechanism has mostly ignored the processing to float impurity, awaits improving.

Disclosure of Invention

The invention aims to: in order to overcome the not enough of existence among the prior art, the utility model provides a structure is collected to bio-trickling filter impurity can collect sediment impurity in the nutrient solution and float impurity respectively, avoids impurity to block up the packing layer.

The technical scheme is as follows: in order to achieve the above purpose, the utility model discloses a bio-trickling filter impurity collecting structure, which comprises a trickling filter, wherein the bottom of the trickling filter is provided with a deposition chamber for collecting deposited impurities, a floating chamber for collecting floating impurities and an accumulation chamber for accumulating nutrient solution; a liquid guide structure is arranged in the trickling filtration tower, and the liquid guide structure enables nutrient solution and impurities falling in the trickling filtration tower to fall into the deposition chamber after passing through the liquid guide structure; the upper end of the settling chamber is communicated with the floating chamber through a first communication structure, so that liquid level floating objects in the settling chamber flow into the floating chamber; the lower part of the floating chamber is communicated with the accumulation chamber, and a floater accumulation chamber is arranged above the liquid level of the floating chamber.

Further, a first cleaning port is arranged at the bottom of the deposition chamber in a communication mode.

Furthermore, the opening end of the deposition chamber is of a flaring structure and gradually folds towards the first cleaning opening, and the extension section from the flaring structure of the deposition chamber to the folding of the first cleaning opening is of a curved surface structure.

Further, the floating chamber is communicated with a second cleaning port.

Further, the first communicating structure is a tubular communicating member.

Furthermore, the liquid guide structure is a liquid guide plate with vertical liquid falling holes, the peripheral side of the liquid guide plate is connected with the inner wall of the trickling filter tower, and the top end of the deposition chamber is communicated with the vertical liquid falling holes.

Has the advantages that: the utility model discloses a structure is collected to biological trickling filter impurity, its beneficial effect as follows:

1) A deposition chamber for collecting deposited impurities, a floating chamber for collecting floating impurities and an accumulation chamber for accumulating nutrient solution are arranged in the trickling filtration tower, and the deposited impurities and the floating impurities are respectively intercepted in the deposition chamber and the floating chamber in the process that the nutrient solution with the impurities sequentially passes through the deposition chamber, the floating chamber and the accumulation chamber;

2) The bottom of the deposition chamber is communicated with a first cleaning port, so that deposited impurities can be cleaned conveniently;

3) Float room upper end intercommunication and be provided with the second clearance mouth, conveniently clear up and float impurity.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the bottom of the trickling filter tower.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The impurity collecting structure of the biological trickling filter as shown in the attached figures 1 to 2 comprises a trickling filter 1, wherein a deposition chamber 2 for collecting deposited impurities, a floating chamber 3 for collecting floating impurities and an accumulation chamber 4 for accumulating nutrient solution are arranged at the bottom of the trickling filter 1. A packing layer 6 is arranged in the trickling filtration tower 1, the deposition chamber 2, the floating chamber 3 and the accumulation chamber 4 are all located below the packing layer 6, an air inlet pipe 16 is further arranged on one side below the packing layer 6, and an air outlet pipe 15 is arranged at the top of the trickling filtration tower 1. The organic waste gas enters the trickling filter tower 1 from the gas inlet pipe 16, then passes through the packing layer 6 from bottom to top, and is discharged from the gas outlet pipe 15.

One side of the trickling filtration tower 1 is provided with a circulating pump 18, the liquid inlet end of the circulating pump 18 is communicated with the accumulation chamber 4, the liquid outlet end of the circulating pump 18 is connected with a plurality of spray headers 17 above the packing layer 6, and the spray headers 17 spray the nutrient solution onto the packing layer 6.

A liquid guiding structure 5 is arranged above the deposition chamber 2, the liquid guiding structure 5 has a collecting effect, the nutrient solution and the impurities falling in the trickling filtration tower 1 fall into the deposition chamber 2 after passing through the liquid guiding structure 5, and then the deposited impurities are deposited in the deposition chamber 2.

The upper end of the sedimentation chamber 2 is communicated with the upper end of the floating chamber 3 through a first communicating structure 7, the liquid level in the floating chamber 3 is lower than the first communicating structure 7, and after the nutrient solution in the sedimentation chamber 2 overflows the first communicating structure 7, the nutrient solution and floating impurities in the sedimentation chamber 2 enter the floating chamber 3 through the first communicating structure 7.

The lower end of the floating chamber 3 is communicated with the accumulation chamber 4 through a second communication structure 8, so that the nutrient solution in the floating chamber 3 enters the accumulation chamber 4. A floater accumulation chamber is arranged above the liquid level of the floating chamber 3. In the embodiment of fig. 1 and 2, the flotation chamber 3 is surrounded by a number of walls spaced from the bottom of the drip chamber to form a second communicating structure 8. Since the floating chamber 3 and the accumulation chamber 4 form a communicating chamber structure, the liquid level in the floating chamber 3 and the accumulation chamber 4 is the same, floating impurities float on the liquid level of the floating chamber 3, and the liquid level in the floating chamber 3 is higher than the height of the second communicating structure 8, so as to avoid the floating impurities in the floating chamber 3 from entering the accumulation chamber 4. Because the floating impurities are limited in the floating chamber 3, the floating impurities cannot be sucked into the circulating pump 18 along with the nutrient solution, and the floating impurities cannot be sprayed to the upper part of the packing layer 6 to cause the blockage of the packing layer 6.

The bottom intercommunication of deposit room 2 is provided with first clearance mouth 9, be provided with first ooff valve 10 on the first clearance mouth 9, when needing to clear up deposit impurity, place the collection container in first clearance mouth 9 below in advance, open first ooff valve 10 after, the nutrient solution that mixes deposit impurity spills to the collection container in from first clearance mouth 9 promptly to clear up out trickling filter tower 1 with deposit impurity. The nutrient solution mixed with the deposited impurities can be added into the trickling filtration tower 1 after being filtered, so that the waste of the nutrient solution is avoided.

Float chamber 3 intercommunication and be provided with second clearance mouth 11, second clearance mouth 11 highly be higher than float the liquid level height in the chamber 3, be provided with second switching valve 12 on the second clearance mouth 11, open second switching valve 12 back, will float impurity through the instrument and fish out, realize the clearance to floating impurity.

The open end of the deposition chamber 2 is of a flaring structure and gradually folds towards the first cleaning port 9, and the flaring structure of the deposition chamber 2 and the folding extension section of the first cleaning port 9 are of a curved surface structure, so that deposited impurities are collected in the deposition chamber 2 close to the first cleaning port 9, and after the first opening and closing valve 10 is opened, the deposited impurities are more easily discharged from the deposition chamber 2 under the action of gravity.

First communication structure 7 is the tubulose intercommunication piece, and first communication structure 7 inclines upwards from the one end that is close to deposit room 2 to the one end that is close to float room 3, at the in-process that the nutrient solution that mixes deposit impurity from top to bottom drips to deposit room 2, and the nutrient solution that mixes deposit impurity is difficult to enter into from first communication structure 7 because of the sputtering and floats in the room 3.

The liquid guide structure 5 is a liquid guide plate 13 with a vertical liquid falling hole 14, the peripheral side of the liquid guide plate 13 is connected with the inner wall of the trickling filter tower 1, and the top end of the deposition chamber 2 is communicated with the vertical liquid falling hole 14. After the impurities and the nutrient solution drop downwards, the impurities and the nutrient solution enter the deposition chamber 2 from the vertical liquid dropping hole 14. The liquid guide plate 13 can be arranged in a funnel shape, and the vertical liquid falling holes 14 are formed in the bottom of the funnel-shaped liquid guide plate 13, so that impurities can slide to the vertical liquid falling holes 14 more easily, and the impurities are prevented from being accumulated on the liquid guide plate 13.

The utility model discloses a working method as follows: nutrient solution and impurity in the trickling filtration tower 1 fall to on the drain board 13, and fall into in the deposit room 2 from vertical droping hole 14, deposit impurity deposits in deposit room 2, after the excessive first connectivity structure 7 of nutrient solution in deposit room 2, nutrient solution and the showy impurity in the deposit room 2 get into through first connectivity structure 7 and float in the room 3, nutrient solution in the cursory room gets into accumulation chamber 4 through second connectivity structure 8, it is then restricted in the room 3 that floats to float impurity, thereby avoid deposit impurity and float in the circulation that impurity got into the nutrient solution. When the impurities need to be cleaned, the first open-close valve 10 and the second open-close valve 12 are respectively opened to clean the deposited impurities and the floating impurities.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, a plurality of modifications and decorations can be made, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a structure is collected to biological trickling filter impurity which characterized in that: the device comprises a trickling filtration tower (1), wherein a deposition chamber (2) for collecting deposited impurities, a floating chamber (3) for collecting floating impurities and an accumulation chamber (4) for accumulating nutrient solution are arranged at the bottom of the trickling filtration tower (1);

a liquid guide structure (5) is arranged in the trickling filtration tower (1), and the liquid guide structure (5) enables nutrient solution and impurities falling in the trickling filtration tower (1) to fall into the deposition chamber (2) after passing through the liquid guide structure (5); the upper end of the deposition chamber (2) is communicated with the floating chamber (3) through a first communication structure (7), so that liquid level floating objects in the deposition chamber (2) flow into the floating chamber (3); the lower part of the floating chamber (3) is communicated with the accumulation chamber (4), and a floater accumulation chamber is arranged above the liquid level of the floating chamber (3).

2. The bio-trickling filter impurity collecting structure of claim 1, wherein: the bottom of the deposition chamber (2) is communicated with a first cleaning port (9).

3. The bio-trickling filter impurity collecting structure of claim 2, wherein: the opening end of the deposition chamber (2) is of a flaring structure and gradually folds towards the first cleaning opening (9), and the stretching section from the flaring structure of the deposition chamber (2) to the folding of the first cleaning opening (9) is of a curved surface structure.

4. The bio-trickling filter impurity collecting structure of claim 1, wherein: the floating chamber (3) is communicated with a second cleaning port (11).

5. The bio-trickling filter impurity collecting structure of claim 1, wherein: the first communication structure (7) is a tubular communication piece.

6. The bio-trickling filter impurity collecting structure of claim 1, wherein: the liquid guide structure (5) is a liquid guide plate (13) with vertical liquid falling holes (14), the peripheral side of the liquid guide plate (13) is connected with the inner wall of the trickling filter tower (1), and the top end of the deposition chamber (2) is communicated with the vertical liquid falling holes (14).