Aquaculture tail water treatment device based on vertical flow sand filter barrel

Abstract

The utility model discloses a culture tail water treatment device based on vertical flow sand filter barrels. The sewage treatment device comprises an outer barrel (115), a water inlet pipe, a central pipe and a plurality of sand filter barrels (103), a sand filter bag (106) is arranged in the sand filter barrel; the inner cavity of the outer barrel is divided into an overflow area (117) at the upper part, a filtering area (107) at the middle part and a dirt collecting area (111) at the bottom; the outer end of the transverse section of the water inlet pipe extends out of the side wall of the outer barrel to serve as a water inlet end; the vertical section of the water inlet pipe is arranged in the central pipe, and the water inlet pipe and the central pipe share the same axis; a drain outlet (113) is formed in the bottom of the outer barrel; a horizontally arranged partition plate (104) is arranged in the outer barrel; a plurality of sand filter barrels are inserted into the through holes in the partition plate in the vertical direction; and an overflow pipe is arranged on the barrel wall of the outer barrel. The culture tail water treatment device based on the vertical flow sand filter barrel is simple in structure, space-saving, easy to implement and low in cost, and has a good filtering effect of effectively removing large particles, small particles, suspended solids and the like.

Description

Technical Field

[0001] The utility model relates to an aquaculture tail water treatment device based on a vertical flow sand filter barrel. Background Art

[0002] The existing vertical flow sedimentation tank has a relatively simple structure, is large in size and wastes space, mainly adopts natural sedimentation, has no filtering effect, and cannot remove suspended matter and tiny particles in aquaculture tail water.

[0003] For example, Chinese patent publication No. 116216994A discloses a fish manure filter and a tailwater treatment method for aquaculture tailwater treatment. This solution uses a filter net for filtering and also has a self-cleaning function, but the filtering effect is limited.

[0004] Therefore, it is necessary to design a new aquaculture tailwater treatment device. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an aquaculture tailwater treatment device and a sewage treatment method based on the organic combination of vertical flow sedimentation and sand filtration. The aquaculture tailwater treatment device based on the vertical flow sand filter barrel has a simple structure, saves space, is easy to implement, has good sedimentation and filtration effects, and is easy to maintain.

[0006] The technical solution of the utility model is as follows:

[0007] A breeding tailwater treatment device based on a vertical flow sand filter barrel comprises an outer barrel, a water inlet pipe, a central pipe and a plurality of sand filter barrels; the water inlet pipe, the central pipe and the plurality of sand filter barrels are all arranged in the outer barrel; a sand filter bag is arranged in the sand filter barrel;

[0008] The inner cavity of the outer barrel is divided into an overflow area at the top, a filtration area in the middle, and a sewage collection area at the bottom;

[0009] The central tube is coaxially arranged with the outer barrel, the central tube is fixed in the outer barrel, and is located in the filtering area; the water inlet pipe is composed of a water inlet pipe horizontal section and a water inlet pipe vertical section connected together; the outer end of the water inlet pipe horizontal section extends from the side wall of the outer barrel as the water inlet end; the water inlet pipe vertical section is arranged in the central tube, and the water inlet pipe and the central tube are coaxial;

[0010] The bottom of the outer barrel is provided with a sewage outlet; the sewage outlet can be connected to a sewage pipe with a valve;

[0011] A plurality of sand filter barrels are supported by a frame plate and arranged in an outer barrel; the sand filter barrels are located in a filtering area; a barrel wall of the sand filter barrel is provided with water-permeable holes; the bottom of the sand filter barrel is higher than the bottom of the central tube;

[0012] A horizontally arranged partition is provided in the outer barrel; a plurality of sand filter barrels are inserted into the through holes on the partition in the vertical direction;

[0013] An overflow pipe is arranged on the cylinder wall of the outer barrel; the position of the overflow pipe is lower than the upper end of the sand filter barrel, and the overflow pipe is located above the partition.

[0014] A frame plate for supporting the sand filter barrel is arranged in the outer barrel.

[0015] An inclined plate filter is provided inside the outer barrel to prevent impurities from flowing back from the sewage collection area into the filtering area.

[0016] There are 4 to 8 sand filter barrels, which are equally spaced along the circumference of the outer barrel. For example, 6 are used.

[0017] The sand filter bucket is equipped with a handle, which is convenient for operators to lift out and insert the sand filter bucket and perform regular cleaning and maintenance on the sand filter bucket.

[0018] A brush column is provided in the sand filter barrel.

[0019] An isolation cylinder with water permeable holes is arranged between the brush column and the sand filter bag.

[0020] The bottom of the dirt collecting area is a tapered cone bottom.

[0021] Beneficial effects:

[0022] The aquaculture tailwater treatment device based on the vertical flow sand filter barrel of the utility model has the following technical advantages:

[0023] (1) Quartz sand filtration can effectively remove tiny particles and suspended matter.

[0024] (2) Using multiple sand filter barrels, the effective filtering area is large and the filtering effect is good.

[0025] (3) The sand filter barrel can be easily inserted and taken out, making it easy to clean and maintain.

[0026] (4) The use of inclined plate filters and conical bottoms has a good pollution collection effect and can effectively prevent the backflow of impurities, which can effectively improve the effect of the entire vertical flow sedimentation process.

[0027] In short, this aquaculture tailwater treatment device based on vertical flow sand filter barrel saves space, is easy to implement, has low cost, and has a good filtering effect of effectively removing large particles, small particles and suspended matter. It has a simple and practical structure, good sedimentation and filtering effects, is easy to clean, and is suitable for promotion and implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an aquaculture tailwater treatment device based on a vertical flow sand filter barrel (front view);

[0029] Figure 2 It is a schematic diagram of the overall structure of an aquaculture tailwater treatment device based on a vertical flow sand filter barrel (top view);

[0030] Figure 3 It is a schematic diagram of the sewage treatment process of a sewage treatment device based on a vertical flow sand filter barrel;

[0031] Figure 4 This is a three-dimensional diagram of the sand filter barrel.

[0032] Explanation of reference numerals: 101-vertical section of water inlet pipe, 102-handle, 103-sand filter barrel, 104-partition, 105-brush column, 106-sand filter bag, 107-filtration area, 108-frame, 109-center pipe, 110-inclined plate filter, 112-conical bottom, 113-drainage outlet, 114-horizontal section of water inlet pipe, 115-outer barrel, 116-overflow pipe, 117-overflow area, 118-isolation cylinder, 119-ring body. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0034] Example 1: Figure 1-2 as well as Figure 4 A vertical flow sand filter barrel-based aquaculture tailwater treatment device includes an outer barrel 115, a water inlet pipe, a central pipe 109 and six sand filter barrels 103; the water inlet pipe, the central pipe and the plurality of sand filter barrels are all arranged in the outer barrel; and a plurality of sand filter bags 106 are arranged in the sand filter barrel;

[0035] The inner cavity of the outer barrel is divided into an overflow area 117 at the top, a filtering area 107 in the middle, and a sewage collecting area 111 at the bottom; the central tube is coaxially arranged with the outer barrel, the central tube is fixed in the outer barrel (specifically supported by the frame plate and the inclined plate filter), and is located in the filtering area; the water inlet pipe is composed of a water inlet pipe horizontal section 114 and a water inlet pipe vertical section 101 connected together; the outer end of the water inlet pipe horizontal section extends from the side wall of the outer barrel as the water inlet end; the water inlet pipe vertical section is arranged in the central tube, and the water inlet pipe and the central tube have the same axis;

[0036] The bottom of the outer barrel is provided with a sewage outlet 113; the sewage outlet can be connected to a sewage pipe with a valve;

[0037] Six sand filter barrels are supported by a frame plate and arranged in an outer barrel; the sand filter barrel is located in the filter area; the barrel wall of the sand filter barrel adopts a grid plate to facilitate sewage to enter the sand filter barrel from the filter area; the bottom of the sand filter barrel is higher than the bottom of the central tube;

[0038] A horizontally arranged partition 104 is provided in the outer barrel; a plurality of sand filter barrels are vertically inserted into the through holes on the partition; the partition plays an isolating role, and water in the filter area cannot enter the overflow area through the partition, but can only enter the overflow area after passing through the sand filter.

[0039] An overflow pipe 116 is provided on the wall of the outer barrel; the overflow pipe is located lower than the upper end of the sand filter barrel, and the overflow pipe is located above the partition.

[0040] A frame plate 108 for supporting the sand filter barrel is provided in the outer barrel. An inclined plate filter 110 is provided in the outer barrel to prevent impurities from flowing back from the dirt collecting area into the filtering area.

[0041] The six sand filter barrels are equally spaced along the circumference of the outer barrel.

[0042] The sand filter bucket is provided with a handle 102. It is convenient for the operator to lift and insert the sand filter bucket and perform regular cleaning and maintenance on the sand filter bucket.

[0043] A brush column 105 is provided in the sand filter barrel to further enhance the filtering effect.

[0044] An isolation cylinder 118 with water permeable holes is provided between the brush column and the sand filter bag to isolate the sand filter bag and the brush column to prevent the sand filter bag from squeezing the brush column.

[0045] The bottom of the dirt collection area is a conical bottom 112 with a taper.

[0046] The top of the sand filter barrel is provided with a ring body 119 for hanging the sand filter barrel in the through hole, so that the bottom and the top of the sand filter barrel can be stressed, and the structure is more solid.

[0047] A sewage treatment method, using the aforementioned sewage treatment device based on vertical flow sand filter barrel;

[0048] The processing process is:

[0049] The sewage enters the central pipe through the water inlet pipe, and then enters the filtration area. The sand filter barrel in the filtration area filters the sewage, and the clear liquid is discharged from the overflow pipe; impurities enter the sewage collection area for sedimentation.

[0050] like Figure 3 , specific steps:

[0051] S1: Sewage enters the main barrel through the water inlet of the water inlet pipe;

[0052] S2: Sewage flows upward through the vertical section of the inlet pipe;

[0053] S3: Sewage enters the central pipe through the nozzle at the top of the vertical section of the inlet pipe;

[0054] S4: Sewage flows downward into the sewage collection area;

[0055] S5: sewage enters the filtration area through the inclined plate filter;

[0056] S6: sewage enters the sand filter tank;

[0057] S7: The sewage enters the brush column from the sand filter barrel and then overflows from the upper end of the brush column;

[0058] S8: The clear liquid is discharged from the overflow port.

[0059] Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model should be included in the protection scope of this utility model.

Claims

1. A breeding tailwater treatment device based on a vertical sand filter barrel, characterized in that: It comprises an outer barrel (115), a water inlet pipe, a central pipe and a plurality of sand filter barrels (103); the water inlet pipe, the central pipe and the plurality of sand filter barrels are all arranged in the outer barrel; a sand filter bag (106) is arranged in the sand filter barrel; The inner cavity of the outer barrel is divided into an overflow area (117) at the top, a filtering area (107) at the middle, and a dirt collecting area (111) at the bottom; The central tube is coaxially arranged with the outer barrel, and the central tube is fixed in the outer barrel and located in the filtering area; the water inlet pipe is composed of a water inlet pipe transverse section (114) and a water inlet pipe vertical section (101) connected together; the outer end of the water inlet pipe transverse section extends from the side wall of the outer barrel as the water inlet end; The vertical section of the water inlet pipe is arranged in the central pipe, and the water inlet pipe and the central pipe are coaxial; The bottom of the outer barrel is provided with a sewage outlet (113); A plurality of sand filter barrels are supported by a frame plate and arranged in an outer barrel; the sand filter barrels are located in a filtering area; a barrel wall of the sand filter barrel is provided with water-permeable holes; the bottom of the sand filter barrel is higher than the bottom of the central tube; A horizontally arranged partition (104) is provided in the outer barrel; a plurality of sand filter barrels are inserted into the through holes on the partition in a vertical direction; an overflow pipe (116) is provided on the wall of the outer barrel; the overflow pipe is located lower than the upper end of the sand filter barrel, and the overflow pipe is located above the partition.

2. The aquaculture tailwater treatment device based on vertical flow sand filter barrel according to claim 1 is characterized in that: A frame plate (108) for supporting the sand filter barrel is arranged in the outer barrel.

3. The aquaculture tailwater treatment device based on vertical flow sand filter barrel according to claim 1 is characterized in that: An inclined plate filter (110) is arranged in the outer barrel.

4. The aquaculture tailwater treatment device based on vertical flow sand filter barrel according to claim 1 is characterized in that: There are 4 to 8 sand filter barrels, which are equally spaced along the circumference of the outer barrel.

5. The aquaculture tailwater treatment device based on vertical flow sand filter barrel according to claim 1 is characterized in that: The sand filter barrel is provided with a handle (102).

6. The aquaculture tailwater treatment device based on vertical flow sand filter barrel according to claim 1 is characterized in that: A brush column (105) is provided in the sand filter barrel.

7. The aquaculture tailwater treatment device based on vertical flow sand filter barrel according to claim 6 is characterized in that: An isolation cylinder (118) with water permeable holes is arranged between the brush column and the sand filter bag.

8. The aquaculture tailwater treatment device based on the vertical flow sand filter barrel according to any one of claims 1 to 7, characterized in that: The bottom of the dirt collection area is a conical bottom (112) with a taper.

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