Fishpond filter box fluidization bin aeration device

Abstract

The utility model belongs to the technical field of fishponds, and particularly relates to a fishpond filter tank fluidization bin aeration device which comprises a filter tank, and a circulating water inlet and a circulating water outlet are formed in the front end and the rear end of the filter tank respectively. A first partition plate and a second partition plate which are arranged in the filter box at intervals divide the interior of the filter box into a rough filter bin, a fluidization bin and a biochemical bin which are adjacent front and back, biological carriers are contained in the fluidization bin, the first partition plate and the second partition plate are provided with a rough filter bin water outlet and a fluidization bin water outlet respectively, and an air supply pipe is installed on the second partition plate. The air supply pipe comprises a transverse pipe, an aeration head and a U-shaped pipe, the aeration head is installed on the transverse pipe and arranged below the water outlet of the fluidization bin, and the two ends of the U-shaped pipe are connected with the transverse pipe and the oxygen supply device respectively. The oxygen content of the water body in the fluidization bin is increased through the air supply pipe, the use amount of the biological carrier in the fluidization bin can be increased by 2-3 times, the upward rising effect of the air flow accelerates the rolling speed of the water flow, rolling of the biological carrier in the fluidization bin is promoted, and the use effect of the biological carrier is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fish ponds, and in particular relates to an aeration device for a filter box fluidizing bin of a fish pond. Background Art

[0002] Fluidized filler is also called MBBR filler. In the aerobic biological fluidized bed process, three-dimensional hollow filler is used as aerobic biological carrier. The filler has a hollow structure. During normal operation, the filler is suspended in the water. Anaerobic bacteria grow inside the filler, which can remove nitrogen by denitrification; aerobic bacteria grow outside to remove organic matter. Nitrification and denitrification processes exist simultaneously during the entire treatment process. It is a new type of biologically active carrier.

[0003] When aerobic biological carriers in existing fish pond filtration fluidized bins are fluidized, they are generally driven by water flowing outside the biological carriers and on the left and right sides. Since the fillers are small and densely packed in the bed, they rub and collide with each other, so the activity of the biofilm is also high, which strengthens the mass transfer process.

[0004] However, the above method has the following problems: the existing biological carriers are fluidized only by being driven by water flow, which has a poor driving effect on the biological carriers, and the biological carriers are prone to agglomeration, sedimentation, and blocking of water flow. In addition, there is also the disadvantage of low oxygen content in the water body. Therefore, the biodegradability of the biological carriers cannot be fully exerted and the ability of microorganisms to obtain oxygen cannot be enhanced. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to provide a fluidized bin aeration device for a fish pond filter box to solve the problem that the biological carriers in the existing filter box are fluidized by water flow, which cannot fully exert the biodegradability of the biological carriers and enhance the ability of microorganisms to obtain oxygen.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: a fish pond filter box fluidized bin aeration device, comprising a filter box, wherein the front and rear ends of the filter box are respectively provided with a circulating water inlet and a circulating water outlet, and the filter box is provided with partitions 1 and 2 at intervals, wherein the partitions 1 and 2 divide the interior of the filter box into a coarse filter bin, a fluidized bin, and a biochemical bin adjacent to each other in front and behind, wherein the fluidized bin contains biological carriers, and the partitions 1 and 2 are respectively provided with a coarse filter bin outlet and a fluidized bin outlet, and an air supply pipe is installed on the partition 2, wherein the air supply pipe comprises a transverse pipe, an aeration head and a U-shaped pipe, wherein the aeration head is installed on the transverse pipe and is arranged below the fluidized bin outlet, and the two ends of the U-shaped pipe are respectively connected to the transverse pipe and an oxygen supply device.

[0007] The beneficial effects of the utility model are as follows: the bubbles sprayed from the air supply pipe drive the water flow in the fluidized bin to turn over faster, thereby accelerating the turning speed of the biological carrier, so that the bacterial cultivation ability of the biological carrier and the activity of the biofilm aerobic microorganisms in obtaining oxygen are enhanced, and the decomposition ability of aerobic microorganisms on proteins and nitrites in the circulating pool water is increased, while avoiding the agglomeration and deposition of the biological carrier in the fluidized bin, and because of the rolling of the biological carrier, the mutual collision and friction between them promote the shedding of the aged biofilm, so that the microbial film continues to maintain the best activity state, and its biodegradation ability is maintained at the best; at the same time, due to the increase in the amount of oxygen in the fluidized bin, the added amount of the biological carrier can be increased by 2-3 times compared with that without the installation of the aeration head, and after the water with increased oxygen content flows into the biochemical bin through the water outlet of the fluidized bin, the treatment efficiency of the lower biochemical bin is fully improved.

[0008] In order to avoid siphoning back of water from the filter box through the air supply pipe;

[0009] As a further improvement of the above technical solution: the top of the U-shaped tube is not lower than the top of the water outlet of the fluidizing bin.

[0010] The beneficial effect of this improvement is that when the equipment is operating normally, the water level in the fluidized bin is no higher than the water outlet of the fluidized bin, thereby ensuring that the water level is always lower than the top of the U-shaped tube, avoiding siphoning after the liquid level submerges the entire air supply pipe, affecting the safe use of the oxygen supply equipment.

[0011] In order to fully ensure the safety of oxygen supply equipment;

[0012] As a further improvement of the above technical solution: a check valve is installed on the connecting pipeline between the U-shaped tube and the oxygen supply equipment.

[0013] The beneficial effect of this improvement is that the non-return effect of the non-return valve allows the medium in the pipeline to flow into the filter box in one direction only, effectively preventing the water from flowing back into the oxygen supply equipment.

[0014] In order to ensure that the water flow entering the fluidized tank carries sufficient oxygen;

[0015] As a further improvement of the above technical solution: the number of the aeration heads is multiple and they are arranged at equal intervals along the axis of the transverse pipe.

[0016] The beneficial effect of this improvement is that gas can be sprayed out from multiple aeration heads, so that the water flow is fully mixed with oxygen when flowing to the water outlet of the fluidized bin, effectively increasing the oxygen content in the water body.

[0017] In order to make the coarse filtration chamber, fluidized chamber and biochemical chamber play the corresponding water treatment effects in turn;

[0018] As a further improvement of the above technical solution: the opening heights of the circulating water inlet, the coarse filtration bin outlet, the fluidization bin outlet, and the circulating water outlet are successively reduced.

[0019] The beneficial effect of this improvement is that by successively lowering the opening heights of the circulating water inlet, the coarse filtration bin outlet, the fluidizing bin outlet, and the circulating water outlet, it is possible to effectively prevent water from a subsequent water treatment process from flowing back into a previous water treatment process and affecting the effect of the water treatment while controlling the water flow rate.

[0020] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a front sectional view of the utility model;

[0024] Figure 4 It is a side sectional view of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the air supply pipe in the utility model;

[0026] In the figure: 1. filter box; 2. partition 1; 3. partition 2; 4. coarse filter chamber; 5. fluidized chamber; 6. biochemical chamber; 7. circulating water inlet; 8. coarse filter chamber outlet; 9. fluidized chamber outlet; 10. circulating water outlet; 11. air supply pipe; 111. horizontal pipe; 112. aeration head; 113. U-shaped pipe; 12. check valve. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0028] Embodiment 1:

[0029] like Figure 1—5 shows: a fish pond filter box fluidized bin aeration device, comprising a filter box 1, wherein the front and rear ends of the filter box 1 are respectively provided with a circulating water inlet 7 and a circulating water outlet 10, wherein the filter box 1 is spaced apart with a partition 1 2 and a partition 2 3, wherein the partition 1 2 and the partition 2 3 divide the interior of the filter box 1 into a coarse filter bin 4, a fluidized bin 5, and a biochemical bin 6 adjacent to each other in front and rear, wherein the fluidized bin 5 contains biological carriers, wherein the partition 1 2 and the partition 2 3 are respectively provided with a coarse filter bin outlet 8 and a fluidized bin outlet 9, wherein the partition 2 3 is provided with an air supply pipe 11, wherein the air supply pipe 11 comprises a transverse pipe 111, an aeration head 112, and a U-shaped pipe 113, wherein the aeration head 112 is installed on the transverse pipe 111 and is provided with ... U-shaped pipe 113 is provided with a U-shaped pipe 113, wherein the U-shaped pipe 113 is provided with a U-shaped pipe 113, wherein the U-shaped pipe 113 is provided with a U-shaped pipe 11 The U-shaped tube 113 is placed below the water outlet 9 of the fluidized bin. The two ends of the U-shaped tube 113 are connected to the transverse tube 111 and the oxygen supply device respectively. The bubbles ejected from the air supply pipe 11 drive the water flow in the fluidized bin 5 to turn faster, thereby accelerating the turning speed of the biological carrier, so that the bacterial cultivation ability of the biological carrier and the activity of the biofilm aerobic microorganisms to obtain oxygen are enhanced, and the decomposition ability of aerobic microorganisms to protein and nitrite in the circulating pool water is increased. At the same time, the agglomeration and deposition of the biological carrier in the fluidized bin is avoided. In addition, because the biological carrier rolls, the mutual collision and friction between them promote the shedding of the aged biofilm, so that the microbial film continues to maintain the best activity state and its biodegradation ability is maintained at the best. At the same time, due to the increase in the amount of oxygen in the fluidized bin 5, the biofilm is The amount of biological carrier added can be increased by 2-3 times compared with that without the aeration head installed, and the water with increased oxygen content flows into the biochemical bin 6 through the fluidized bin outlet 9, which fully improves the treatment efficiency of the lower biochemical bin 6. The top of the U-shaped tube 113 is not lower than the top of the fluidized bin outlet 9. When the equipment is operating normally, the water level in the fluidized bin 5 is not higher than the fluidized bin outlet 9, thereby ensuring that the water level is always lower than the top of the U-shaped tube 113, avoiding siphoning after the liquid level submerges the entire air supply pipe 11, affecting the safety of the oxygen supply equipment. A check valve 12 is installed on the connecting pipeline between the U-shaped tube 113 and the oxygen supply equipment. The check valve 12 has a non-return effect so that the medium in the pipeline can only flow into the filter box 1 in one direction, effectively In order to avoid the water body from flowing back to the oxygen supply equipment, there are multiple aeration heads 112 and they are equidistantly arranged along the axis of the horizontal pipe 111. Gas can be ejected by multiple aeration heads 112, so that the water flow is fully mixed with oxygen when flowing to the fluidized bin outlet 9, thereby effectively increasing the oxygen content in the water body. The opening heights of the circulating water inlet 7, the coarse filtration bin outlet 8, the fluidized bin outlet 9, and the circulating water outlet 10 are successively reduced. By successively reducing the opening heights of the circulating water inlet 7, the coarse filtration bin outlet 8, the fluidized bin outlet 9, and the circulating water outlet 10, it is possible to effectively avoid the water body in the subsequent water treatment process from flowing back to the previous water treatment process and affecting the water treatment effect under the premise of controlling the water flow velocity.

[0030] The working principle of the present technical solution is as follows: water flows into the coarse filter bin 4 through the circulating water inlet 7, flows into the fluidized bin 5 through the coarse filter bin outlet 8, and then enters the biochemical bin 6 through the fluidized bin outlet 9. When the water flows into the fluidized bin 5, the water flows downward under the action of gravity, driving the biological carrier in the fluidized bin 5 to rotate counterclockwise. At the same time, the bubbles sprayed from the aeration head 112 at the bottom of the other side of the fluidized bin 5 rise upward, driving the water flow in the fluidized bin 5 to rotate counterclockwise faster, thereby accelerating the turning speed of the biological carrier, so that the bacterial cultivation ability of the biological carrier and the activity of the biofilm oxygen microorganisms to obtain oxygen are increased. The aeration head is strong, which increases the ability of aerobic microorganisms to decompose proteins and nitrites in the circulating pool water, and at the same time avoids the agglomeration and deposition of the biological carriers in the fluidized bin. In addition, due to the rolling of the biological carriers, the mutual collision and friction between them promote the shedding of the aged biofilm, so that the microbial film continues to maintain the best activity state and its biodegradation ability remains optimal. At the same time, due to the increase in the amount of oxygen in the fluidized bin 5, the amount of biological carrier added can be increased by 2-3 times compared with that without the installation of the aeration head, and the water with increased oxygen content flows into the biochemical bin 6 through the fluidized bin outlet 9, which fully improves the treatment efficiency of the lower biochemical bin 6.

[0031] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0032] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A fish pond filter box fluidized bin aeration device, characterized in that: The invention comprises a filter box (1), wherein the front and rear ends of the filter box (1) are respectively provided with a circulating water inlet (7) and a circulating water outlet (10), wherein the filter box (1) is provided with a partition plate 1 (2) and a partition plate 2 (3) at intervals, wherein the partition plate 1 (2) and the partition plate 2 (3) divide the interior of the filter box (1) into a coarse filter bin (4), a fluidized bin (5), and a biochemical bin (6) adjacent to each other, wherein the fluidized bin (5) contains biological carriers, and the partition plates 1 (2) and 2 (3) are provided to separate the biological carriers from the biological carriers. The second partition (3) is provided with a coarse filter bin outlet (8) and a fluidizing bin outlet (9), respectively. The second partition (3) is provided with an air supply pipe (11), the air supply pipe (11) comprising a transverse pipe (111), an aeration head (112) and a U-shaped pipe (113). The aeration head (112) is installed on the transverse pipe (111) and arranged below the fluidizing bin outlet (9), and the two ends of the U-shaped pipe (113) are respectively connected to the transverse pipe (111) and the oxygen supply device.

2. A fish pond filter box fluidized bin aeration device according to claim 1, characterized in that: The top end of the U-shaped tube (113) is not lower than the top end of the fluidizing bin water outlet (9).

3. A fish pond filter box fluidized bin aeration device according to claim 1, characterized in that: A check valve (12) is installed on the connecting pipeline between the U-shaped tube (113) and the oxygen supply equipment.

4. The fish pond filter box fluidized bin aeration device according to claim 1, characterized in that: The aeration heads (112) are multiple in number and are arranged at equal intervals along the axis of the transverse pipe (111).

5. The fish pond filter box fluidized bin aeration device according to claim 1, characterized in that: The heights of the circulating water inlet (7), the coarse filter bin outlet (8), the fluidizing bin outlet (9), and the circulating water outlet (10) are successively lowered.

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