A circulating treatment device for aquaculture wastewater

Abstract

The present invention provides a circulating treatment device for aquaculture wastewater, comprising a housing, a filter assembly, a backwash assembly and a sewage collection assembly, wherein the housing has a chamber, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are both connected to the chamber, the filter assembly is arranged in the chamber and the filter assembly has a filter chamber, the liquid inlet is connected to the filter chamber, the liquid outlet is located below the filter assembly, the backwash assembly is arranged in the chamber and above the filter assembly, the sewage collection assembly comprises a sewage collection cylinder and a flow guide, the sewage collection cylinder is arranged in the filter assembly and connected to the inner circumference of the housing, the upper end surface of the sewage collection cylinder is provided with an opening extending along the length direction of the filter assembly, the flow guide is arranged in the sewage collection cylinder and can rotate relative to the sewage collection cylinder along the circumference of the sewage collection cylinder, the outer circumference of the flow guide passes through the opening and abuts against the inner circumference of the filter assembly, and the flow guide is provided with a plurality of flow guide holes penetrating the flow guide along the radial direction of the sewage collection cylinder. The circulating treatment device for aquaculture wastewater of the present invention has the advantages of simple structure and high filtration efficiency.

Description

Technical Field

[0001] The invention relates to a technical field of aquaculture wastewater treatment, in particular to a circulating treatment device for aquaculture wastewater. Background Art

[0002] The rotary drum microfilter plays an important role in solid-liquid separation, pretreatment, and recovery of useful substances. Through its efficient filtration and cleaning mechanism, the rotary drum microfilter can significantly improve the effect of water treatment, reduce the burden of subsequent treatment, realize resource recycling, and meet environmental protection requirements.

[0003] In the related art, the sewage and impurities backwashed down are easily leaked at the sewage outlet of the rotary drum microfiltration machine, causing the impurities to flow back into the filter along with the sewage, increasing the difficulty of subsequent treatment of the filter. Summary of the invention

[0004] Based on this, it is necessary to provide a recycling treatment equipment for aquaculture wastewater to address the problems of low cleaning efficiency and difficulty in treating filter residue in the current rotary drum microfiltration machine.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A circulating treatment device for aquaculture wastewater comprises: a shell, the shell having a chamber, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are both connected to the chamber, so that wastewater flows into the chamber through the liquid inlet and flows out of the chamber from the liquid outlet; a filter assembly, the filter assembly is arranged in the chamber and the filter assembly has a filter chamber, the liquid inlet is connected to the filter chamber, so that the wastewater flows into the filter chamber through the liquid inlet to filter impurities in the wastewater, and the liquid outlet is located below the filter assembly, so that the filtered wastewater flows out through the liquid outlet; a backwash assembly, the backwash assembly is arranged in the chamber and above the filter assembly, and the backwash assembly is used to wash the filter assembly; a sewage collection assembly, the sewage collection assembly comprises a sewage collection cylinder and a guide member, the guide member is made of elastic material, The dirt collecting barrel is arranged in the filter assembly and is connected to the inner circumferential surface of the shell, the upper end surface of the dirt collecting barrel is provided with an opening extending along the length direction of the filter assembly, the opening and the backwash assembly are arranged relative to each other in the up and down directions, so that the flushing water flowing out of the backwash assembly flows into the dirt collecting barrel, the guide member is arranged in the dirt collecting barrel and is rotatable relative to the dirt collecting barrel along the circumferential direction of the dirt collecting barrel, the outer circumferential surface of the guide member passes through the opening and abuts against the inner circumferential surface of the filter assembly, the guide member is provided with a plurality of guide holes penetrating the guide member along the radial direction of the dirt collecting barrel, the plurality of guide holes are arranged at intervals along the circumferential direction of the guide member so that when the filter assembly is cleaned, the backwash assembly flushes the filter assembly, the filter assembly rotates to drive the guide member to rotate, and the flushing water flowing out of the filter assembly flows into the dirt collecting barrel through the guide holes.

[0007] Furthermore, the dirt collecting cylinder includes an outer cylinder and an inner cylinder, the outer cylinder and the inner cylinder are both arranged in the filter cavity and are both connected to the shell, the inner cylinder is arranged in the outer cylinder and the inner circumferential surface of the outer cylinder and the outer circumferential surface of the inner cylinder are spaced apart, the flow guide is rotatably arranged between the outer cylinder and the inner cylinder, the upper end surface of the outer cylinder is provided with a first opening extending along the length direction of the filter assembly, the upper end surface of the inner cylinder is provided with a second opening extending along the length direction of the filter assembly, the first opening and the second opening are spaced apart relative to each other in the up and down directions to define the opening, and when cleaning the filter assembly, the flushing water after flushing the filter assembly flows into the inner cylinder through the opening.

[0008] Furthermore, the inner cylinder includes a first plate, a second plate and a connecting plate, the first plate, the connecting plate and the second plate are connected in sequence along the circumference of the inner cylinder, and the first plate and the second plate are relatively spaced apart along the circumference of the inner cylinder to define the second port, and the first plate and the second plate are both filter plates, so that when the flushing water in the inner cylinder is higher than a preset value, the flushing water flows into the guide hole through the filter plate.

[0009] Furthermore, when the flushing water in the dirt collecting barrel is higher than a preset value, the dirt collecting component has a cleaning state. In the cleaning state, the flushing water in the dirt collecting barrel flows into the guide hole and rotates with the guide hole. When the flushing water rotates to above the first plate or the second plate, the first plate or the second plate is flushed.

[0010] Furthermore, one end of the inner cylinder passes through the shell and is suitable for being connected to an external device so that the flushing water in the inner cylinder can be discharged from the inner cylinder.

[0011] Furthermore, the filter assembly is provided with a plurality of first filter holes, the filter plate is provided with a plurality of second filter holes, and the aperture of the first filter holes is not less than the aperture of the second filter holes.

[0012] Furthermore, the outer circumferential surface of the outer cylinder is provided with a plurality of first overflow holes and a second overflow holes penetrating the outer cylinder, the plurality of first overflow holes and the plurality of second overflow holes are arranged at intervals along the axial direction of the outer cylinder, the plurality of first overflow holes and the plurality of second overflow holes are arranged at intervals along the radial direction of the outer cylinder, and the first overflow holes are arranged adjacent to the first plate, and the second overflow holes are arranged adjacent to the second plate.

[0013] Furthermore, the guide member includes a plurality of guide plates and a plurality of mounting plates, the guide plates are made of elastic material, the guide plates extend radially along the dirt collecting cylinder, the mounting plates extend circumferentially along the dirt collecting cylinder, the plurality of guide plates are arranged at intervals along the circumference of the dirt collecting cylinder, at least one mounting plate is provided between two adjacent guide plates, the two ends of the mounting plate are respectively connected to the two adjacent guide plates, the two adjacent guide plates and the mounting plate define the guide hole, and at least two guide plates pass through the opening and abut against the inner circumferential surface of the filter assembly.

[0014] Furthermore, the aquaculture wastewater circulation treatment equipment also includes a motor, which is arranged on the outer peripheral surface of the shell and connected to the filter assembly, so that when the filter assembly is cleaned, the motor drives the filter assembly to rotate.

[0015] Furthermore, the backwash component includes a water pump, a flushing pipe and a plurality of nozzles. The water pump is connected to the flushing pipe so that the flushing water flows into the flushing pipe through the water pump. The flushing pipe is arranged above the filter component and extends along the length direction of the filter component. The plurality of nozzles are arranged on the flushing pipe and are all connected to the flushing pipe. The plurality of nozzles are arranged on the side of the flushing pipe facing the filter component and the plurality of nozzles are spaced apart along the extension direction of the flushing pipe so that the flushing water flushes the filter component through the nozzles.

[0016] The beneficial effects of the present invention are as follows: the circulating treatment equipment for aquaculture wastewater of the embodiment of the present invention is provided with a backwash component and a sewage collecting component, which cleans the impurities on the filter component and prevents the impurities from flowing into the filter component along with the flushing water, thereby reducing the difficulty of handling the impurities and ensuring the filtering efficiency of the filter component. In addition, during the working process of cleaning the filter component, the filter component and the guide member are always tightly pressed, so that the filter component drives the guide member to rotate, thereby ensuring that the filter component is not worn and the impurities in the backwash sewage will not leak, thereby extending the service life and filtering efficiency of the filter component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a circulating treatment device for aquaculture wastewater according to an embodiment of the present invention;

[0018] Figure 2 A three-dimensional diagram of a circulating treatment device for aquaculture wastewater according to an embodiment of the present invention;

[0019] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0020] Figure 4 for Figure 3 A partial enlarged view of B in the middle;

[0021] Figure 5 for Figure 2 Stereoscopic image of medium AA;

[0022] Figure 6 for Figure 5 A partial enlarged view of middle C;

[0023] Figure 7 A top view of a circulating treatment device for aquaculture wastewater according to an embodiment of the present invention;

[0024] Figure 8 for Figure 7 Cross-sectional view of DD.

[0025] in:

[0026] 100. Circulation treatment equipment for aquaculture wastewater;

[0027] 110. Shell; 111. Chamber; 112. Liquid inlet; 113. Liquid outlet; 120. Filter assembly; 130. Backwash assembly; 131. Water pump; 132. Flushing pipe; 133. Nozzle; 140. Waste collection assembly; 141. Waste collection cylinder; 1411. Opening; 142. Guide member; 1421. Guide hole; 1422. Guide plate; 1423. Mounting plate; 143. Outer cylinder; 1431. First port; 1432. First overflow hole; 1433. Second overflow hole; 144. Inner cylinder; 1441. Second port; 1442. First plate; 1443. Second plate; 1444. Connecting plate; 150. Motor. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] like Figure 1-8As shown, the circulating treatment equipment 100 for aquaculture wastewater according to the embodiment of the present invention includes a housing 110 , a filter assembly 120 , a backwash assembly 130 and a sewage collection assembly 140 .

[0032] The housing 110 has a chamber 111, a liquid inlet 112 and a liquid outlet 113. The liquid inlet 112 and the liquid outlet 113 are both connected to the chamber 111, so that wastewater flows into the chamber 111 through the liquid inlet 112 and flows out of the chamber 111 from the liquid outlet 113. Specifically, Figure 1 and Figure 2 As shown, the shell 110 is a rectangular shell without a top surface, the liquid inlet 112 is arranged in the middle of the shell 110, and the liquid outlet 113 is arranged at the bottom of the shell 110. The waste water flows into the chamber 111 through the liquid inlet 112 and flows out of the chamber 111 through the liquid outlet 113.

[0033] The filter assembly 120 is disposed in the chamber 111 and has a filter cavity. The liquid inlet 112 is connected to the filter cavity so that wastewater flows into the filter cavity through the liquid inlet 112 to filter impurities in the wastewater. The liquid outlet 113 is located below the filter assembly 120 so that the filtered wastewater flows out through the liquid outlet 113. Specifically, Figure 1 and Figure 2 As shown, the filter assembly 120 is a filter cylinder, which is arranged in the shell 110 and is connected to the liquid inlet 112. Wastewater flows into the filter assembly 120 through the liquid inlet 112, so that the filter assembly 120 filters impurities in the wastewater, and the filtered wastewater flows into the bottom of the shell 110 and flows out of the shell 110 through the liquid outlet 113 at the bottom of the shell 110.

[0034] The backwashing assembly 130 is disposed in the chamber 111 and above the filter assembly 120. The backwashing assembly 130 is used to wash the filter assembly 120. Specifically, Figure 1 As shown, the backwash component 130 is disposed above the housing 110 and is spaced relative to the filter component 120 in the up and down directions. When the filter component 120 is clogged, the backwash component 130 can spray flushing water on the filter component 120 to backwash the filter component 120.

[0035] The dirt collecting assembly 140 includes a dirt collecting cylinder 141 and a flow guide 142. The flow guide 142 is made of elastic material. The dirt collecting cylinder 141 is arranged in the filter assembly 120 and connected to the inner circumference of the housing 110. The upper end surface of the dirt collecting cylinder 141 is provided with a Figure 1The opening 1411 extends from the backwashing assembly 130 in the vertical direction, and the opening 1411 is arranged opposite to the backwashing assembly 130 at intervals, so that the flushing water flowing out of the backwashing assembly 130 flows into the dirt collecting barrel 141. The guide member 142 is arranged in the dirt collecting barrel 141 and is rotatable relative to the dirt collecting barrel 141 along the circumferential direction of the dirt collecting barrel 141. The outer circumferential surface of the guide member 142 passes through the opening 1411 and abuts against the inner circumferential surface of the filter assembly 120. The guide member 142 is provided with a plurality of guide holes 1421 that penetrate the guide member 142 in the radial direction of the dirt collecting barrel 141. The plurality of guide holes 1421 are arranged at intervals along the circumferential direction of the guide member 142, so that when the filter assembly 120 is cleaned, the backwashing assembly 130 flushes the filter assembly 120, the filter assembly 120 rotates to drive the guide member 142 to rotate, and the flushing water flowing out of the filter assembly 120 flows into the dirt collecting barrel 141 through the guide holes 1421. Specifically, as Figure 3-Figure 6 As shown, the dirt collecting cylinder 141 is a cylindrical cylinder and extends in the left-right direction. An opening 1411 extending in the left-right direction is provided on the dirt collecting cylinder 141. The dirt collecting cylinder 141 is arranged in the filter assembly 120 and one end of the dirt collecting cylinder 141 is connected to the inner circumferential surface of the shell 110. The opening 1411 of the dirt collecting cylinder 141 and the backwashing assembly 130 are arranged opposite to each other in the up-down direction, so that the flushing water flows into the dirt collecting cylinder 141 through the filter assembly 120. The guide member 142 is cylindrical and a plurality of guide holes 1421 penetrating the guide member 142 are provided on the guide member 142. The guide holes 1421 are arranged at intervals along the circumference of the guide member 142, and the outer circumferential surface of the upper half of the guide member 142 passes through the opening 1411 and abuts against the inner circumferential surface of the filter assembly 120, so that the part of the guide member 142 abutting against the inner circumferential surface of the filter assembly 120 can be elastically deformed to make the guide member 142 and the backwashing assembly 130 pass through the filter assembly 120. The filter assembly 120 is in close contact, which can generate friction between the guide member 142 and the filter assembly 120. When the filter assembly 120 is blocked, the backwash assembly 130 is turned on to flush the filter assembly 120, and the filter assembly 120 is rotated to clean the filter assembly 120 in all directions. The guide member 142 rotates synchronously with the filter assembly 120 in the dirt collecting barrel 141 under the action of friction. Since the guide member 142 and the filter assembly 120 are always tightly pressed, not only the guide member 142 and the filter assembly 120 are prevented from relative rotation, thereby preventing the guide member 142 and the filter assembly 120 from wearing, but also the flushing water and impurities flowing out of the upper end of the filter assembly 120 flow into the dirt collecting barrel 141 through the diversion effect of the guide hole 1421, avoiding the flushing water from leaving along the filter assembly 120 and avoiding the flushing water from bringing impurities back to the bottom of the filter assembly 120.

[0036] The circulating treatment equipment 100 for aquaculture wastewater according to the embodiment of the present invention is provided with a backwashing component 130 and a sewage collecting component 140. The filter component 120 is backwashed by the backwashing component 130 to clean the impurities on the filter component 120 and prevent the filter component 120 from being blocked. The sewage collecting component 140 can collect flushing water and impurities to prevent the impurities from flowing into the filter component 120 along with the flushing water, thereby reducing the difficulty of handling impurities and ensuring the filtering efficiency of the filter component 120.

[0037] In some embodiments, the dirt collecting cylinder 141 includes an outer cylinder 143 and an inner cylinder 144, both of which are arranged in the filter cavity and connected to the shell 110, the inner cylinder 144 is arranged in the outer cylinder 143, and the inner circumference of the outer cylinder 143 and the outer circumference of the inner cylinder 144 are arranged at intervals, the guide member 142 is rotatably arranged between the outer cylinder 143 and the inner cylinder 144, the upper end surface of the outer cylinder 143 is provided with a first port 1431 extending along the length direction of the filter assembly 120, the upper end surface of the inner cylinder 144 is provided with a second port 1441 extending along the length direction of the filter assembly 120, the first port 1431 and the second port 1441 are arranged at intervals in the up-down direction to define an opening 1411, when cleaning the filter assembly 120, the flushing water after flushing the filter assembly 120 flows into the inner cylinder 144 through the opening 1411. Specifically, as Figure 3-Figure 6 As shown, the outer cylinder 143 and the inner cylinder 144 can both be cylindrical cylinders and extend in the left-right direction. The inner cylinder 144 is arranged in the outer cylinder 143 and is spaced apart from the outer cylinder 143. The guide member 142 is rotatably sleeved between the outer cylinder 143 and the inner cylinder 144. The upper end surface of the outer cylinder 143 is provided with a first port 1431 extending in the left-right direction, and the upper end surface of the inner cylinder 144 is provided with a second port 1441 extending in the left-right direction. The first port 1431 and the second port 1441 are spaced apart and relatively arranged in the up-down direction to form an opening 1411. The upper end of the guide member 142 passes through the first port 1431 and abuts against the inner circumferential surface of the filter assembly 120, thereby allowing flushing water and impurities to flow into the inner cylinder 144 through the first port 1431, the guide hole 1421 and the second port 1441 to collect the flushing water and impurities.

[0038] In some embodiments, the inner cylinder 144 includes a first plate 1442, a second plate 1443 and a connecting plate 1444. The first plate 1442, the connecting plate 1444 and the second plate 1443 are sequentially connected along the circumference of the inner cylinder 144, and the first plate 1442 and the second plate 1443 are arranged relative to each other along the circumference of the inner cylinder 144 to define a second port 1441. The first plate 1442 and the second plate 1443 are both filter plates, so that when the flushing water in the inner cylinder 144 is higher than a preset value, the flushing water flows into the guide hole 1421 through the filter plate. Specifically, as Figure 4 and Figure 6As shown, the first plate 1442 is the front side plate of the inner cylinder 144, the second plate 1443 is the rear side plate of the inner cylinder 144, the connecting plate 1444 is the lower side plate of the inner cylinder 144, the front and rear sides of the connecting plate 1444 are respectively connected to the first plate 1442 and the second plate 1443, the upper end of the first plate 1442 and the upper end of the second plate 1443 are spaced along the front and rear directions to define the second port 1441, the first plate 1442 and the second plate 1443 are both filter plates, when there is too much flushing water in the inner cylinder 144, it can flow into the guide hole 1421 through the first plate 1442 and the second plate 1443, thereby reducing the storage pressure of the inner cylinder 144 and preventing excessive flushing water from overflowing the inner cylinder 144 and flowing into the filter assembly 120.

[0039] In some embodiments, when the flushing water in the dirt collection barrel 141 is higher than a preset value, the dirt collection assembly 140 has a cleaning state. In the cleaning state, the flushing water in the dirt collection barrel 141 flows into the guide hole 1421 and rotates with the guide hole 1421. When the flushing water rotates to the top of the first plate 1442 or the second plate 1443, the first plate 1442 or the second plate 1443 is flushed. Specifically, Figure 6 As shown, when the flushing water in the inner cylinder 144 is too much and higher than the first plate 1442 or the second plate 1443, the flushing water passes through the filter holes of the first plate 1442 and the second plate 1443 and flows into the guide hole 1421 and rotates with the guide member 142. When the flushing water in the guide hole 1421 rotates with the guide member 142 to be higher than the first plate 1442 or the second plate 1443, the flushing water in the guide hole 1421 can backwash the first plate 1442 and the second plate 1443 to prevent the first plate 1442 and the second plate 1443 from being blocked, thereby ensuring the filtering efficiency of the first plate 1442 and the second plate 1443.

[0040] In some embodiments, one end of the inner cylinder 144 passes through the housing 110 and is suitable for connecting to an external device so that the flushing water in the inner cylinder 144 can be discharged from the inner cylinder 144. Figure 1 As shown, the right end of the inner cylinder 144 passes through the shell 110, thereby allowing the flushing water and impurities in the inner cylinder 144 to be discharged outside the inner cylinder 144, preventing the flushing water in the inner cylinder 144 from overflowing from the inner cylinder 144 and flowing into the filter assembly 120.

[0041] In some embodiments, the filter assembly 120 is provided with a plurality of first filter holes, and the filter plate is provided with a plurality of second filter holes, and the aperture of the first filter hole is not less than the aperture of the second filter hole. Specifically, the aperture of the first filter hole is greater than or equal to the aperture of the second filter hole, thereby preventing the impurities in the inner cylinder 144 from flowing into the outer cylinder 143, so that the impurities flow out of the inner cylinder 144 through the inner cylinder 144, thereby improving the cleaning efficiency of the impurities.

[0042] In some embodiments, the outer circumferential surface of the outer cylinder 143 is provided with a plurality of first overflow holes 1432 and a second overflow hole 1433 penetrating the outer cylinder 143, the plurality of first overflow holes 1432 and the plurality of second overflow holes 1433 are arranged at intervals along the axial direction of the outer cylinder 143, the plurality of first overflow holes 1432 and the plurality of second overflow holes 1433 are arranged at intervals along the radial direction of the outer cylinder 143, and the first overflow holes 1432 are arranged adjacent to the first plate 1442, and the second overflow holes 1433 are arranged adjacent to the second plate 1443. Specifically, as Figure 6 As shown, the front side of the outer cylinder 143 is provided with a plurality of first overflow holes 1432, and the plurality of first overflow holes 1432 are spaced apart in the left-right direction, and the rear side of the outer cylinder 143 is provided with a plurality of second overflow holes 1433, and the plurality of second overflow holes 1433 are spaced apart in the left-right direction. When there is too much flushing water in the inner cylinder 144, the flushing water can flow into the guide hole 1421 through the first plate 1442 and the second plate 1443, and when the flushing water rotates to the first overflow hole 1432 or the second overflow hole 1433 along with the guide member 142, the flushing water in the guide hole 1421 flows into the filter assembly 120 through the first overflow hole 1432 or the second overflow hole 1433, thereby preventing the excessive flushing water in the inner cylinder 144 from flowing out of the inner cylinder 144 from the second port 1441, thereby preventing the impurities in the inner cylinder 144 from flowing into the filter assembly 120 through the second port 1441.

[0043] In some embodiments, Figure 6 As shown, the guide member 142 includes a plurality of guide plates 1422 and a plurality of mounting plates 1423. The guide plates 1422 are made of elastic material. The guide plates 1422 extend radially along the dirt collecting cylinder 141. The mounting plates 1423 extend circumferentially along the dirt collecting cylinder 141. The plurality of guide plates 1422 are arranged at intervals along the circumference of the dirt collecting cylinder 141. At least one mounting plate 1423 is arranged between two adjacent guide plates 1422. Both ends of the mounting plate 1423 are respectively connected to two adjacent guide plates 1422. The two adjacent guide plates 1422 and the mounting plate 1423 define a guide hole 1421. At least two guide plates 1422 pass through the opening 1411 and abut against the inner circumferential surface of the filter assembly 120. Specifically, as shown in FIG. Figure 3-Figure 6As shown, the plurality of guide plates 1422 can be rubber plates, and the plurality of guide plates 1422 extend in the left-right direction and are arranged at intervals around the circumference of the dirt collecting cylinder 141. A plurality of mounting plates 1423 are arranged between two adjacent guide plates 1422, and the plurality of mounting plates 1423 are arranged at intervals in the left-right direction. A guide hole 1421 is defined between two adjacent guide plates 1422 and the mounting plate 1423. When the flushing water in the inner cylinder 144 is higher than the first plate 1442 and the second plate 1443, the flushing water in the inner cylinder 144 The washing water can flow into the guide hole 1421 through the second filter holes of the first plate 1442 and the second plate 1443, so that the guide member 142 drives the flushing water to rotate. Since the multiple guide plates 1422 have elastic deformation capabilities, when the guide plates 1422 pass through the opening 1411 and abut against the inner circumferential surface of the filter assembly 120, the guide plates 1422 can produce elastic deformation, which not only makes the guide plates 1422 in close contact with the filter assembly 120, but also prevents the guide plates 1422 from interfering with each other when rotating with the filter assembly 120. Therefore, through the combination of multiple guide plates 1422 and multiple mounting plates 1423, and the uniform distribution of the guide holes 1421, the uniform distribution and smooth flow of flushing water and impurities are ensured, the guide effect of the guide member 142 is improved, and at least two guide plates 1422 pass through the opening 1411 and abut against the inner circumference of the filter assembly 120, which can ensure that the upper end surface of at least one guide hole 1421 passes through the opening 1411 and abuts against the inner circumference of the filter assembly 120, thereby ensuring that flushing water and impurities flow into the sewage collecting barrel 141 through the two guide plates 1422 abutting against the inner circumference of the filter assembly 120, preventing impurities from flowing into the filter assembly 120 along with the flushing water, thereby ensuring the filtering efficiency of the filter assembly 120.

[0044] In some embodiments, the aquaculture wastewater circulation treatment device 100 further includes a motor 150, which is disposed on the outer peripheral surface of the housing 110 and connected to the filter assembly 120, so that when the filter assembly 120 is cleaned, the motor 150 drives the filter assembly 120 to rotate. Figure 1 and Figure 7 As shown, the motor 150 is arranged on the outer surface of the shell 110 and the output shaft of the motor 150 is connected to the filter assembly 120. When the filter assembly 120 is blocked, the motor 150 is turned on so that the motor 150 drives the filter assembly 120 to rotate, thereby providing rotational power for the rotation of the filter assembly 120.

[0045] In some embodiments, the backwashing assembly 130 includes a water pump 131, a flushing pipe 132, and a plurality of nozzles 133. The water pump 131 is connected to the flushing pipe 132 so that flushing water flows into the flushing pipe 132 through the water pump 131. The flushing pipe 132 is arranged above the filter assembly 120 and extends along the length direction of the filter assembly 120. A plurality of nozzles 133 are arranged on the flushing pipe 132 and are all connected to the flushing pipe 132. The plurality of nozzles 133 are arranged on the side of the flushing pipe 132 facing the filter assembly 120 and the plurality of nozzles 133 are arranged at intervals along the extension direction of the flushing pipe 132 so that flushing water flushes the filter assembly 120 through the nozzles 133. Specifically, as Figure 6 and 8 As shown, the water pump 131 is arranged on the outer peripheral surface of the shell 110, the flushing pipe 132 is a horizontal pipe extending in the left-right direction and is arranged above the filter assembly 120, the inlet of the water pump 131 is connected with the liquid outlet 113 of the shell 110, so that the filtered water in the shell 110 flows into the flushing pipe 132 through the water pump 131 to replenish the flushing water for the flushing pipe 132, the outlet of the water pump 131 is connected with the inlet of the flushing pipe 132, so that the water pump 131 provides flushing water for the flushing pipe 132, the nozzle 133 is arranged at the lower end of the flushing pipe 132 and is arranged opposite to the filter assembly 120, and the multiple nozzles 133 are arranged at intervals in the left-right direction, so that the flushing water can flush the filter assembly 120 through the flushing pipe 132, ensuring that the flushing water can effectively remove impurities on the filter assembly 120.

[0046] The working process of the aquaculture wastewater circulation treatment device 100 according to the embodiment of the present invention is described in detail below:

[0047] At the beginning of the operation, the aquaculture wastewater enters from the liquid inlet 112, and after the wastewater falls into the filter assembly 120, it passes through the filter assembly 120 and leaves from the liquid outlet 113;

[0048] When the filter assembly 120 is clogged, the motor 150 controls the filter assembly 120 to rotate, and at the same time the water pump 131 starts to draw water from the water suction pipe and discharge it from the nozzle 133 of the flushing pipe 132 to backwash the filter assembly 120; at this time, the motor 150 drives the filter assembly 120 to rotate, and since the upper end surface of the guide member 142 abuts against the inner circumference of the filter assembly 120 and the guide member 142 can be elastically deformed, the outer circumference of the guide member 142 and the inner circumference of the filter assembly 120 are in close contact and friction is generated. The friction not only causes the filter assembly 120 to drive the guide member 142 to rotate by the friction force, but also causes the guide member 142 to fit closely with the filter assembly 120, thereby preventing the backwash clean water from leaving along the filter assembly 120 and bringing impurities back to the bottom of the filter assembly 120. Therefore, after the guide member 142 holds the filter assembly 120, the flushing water falls between the two adjacent guide plates 1422, and is restricted by the two adjacent guide plates 1422, so that the backwash waste water falls into the inner cylinder 144 and is discharged from the inner cylinder 144.

[0049] When there is too much flushing water in the inner cylinder 144, the flushing water will pass through the first plate 1442 and the second plate 1443 and flow into the guide hole 1421. A part of the flushing water in the guide hole 1421 will be discharged from the first overflow hole 1432 and the second overflow hole 1433, reducing the amount of flushing water that needs to be processed. At the same time, when the remaining part of the flushing water is transported to the first plate 1442 by the guide member 142, the flushing water will backwash the first plate 1442. Since the guide member 142 rotates only in one direction, when the flushing water is transported to the second port 1441 of the inner cylinder 144 through the guide hole 1421, , the flushing water in the guide hole 1421 will all flow into the inner tube 144 through the second port 1441, so the flushing water in the guide hole 1421 can only backwash the first plate 1442. Therefore, after the filter assembly 120 rotates for a period of time, the motor 150 is required to control the filter assembly 120 to reverse, and the filter assembly 120 drives the guide member 142 to reverse, so that when the flushing water in the guide hole 1421 is transported to the second plate 1443, the flushing water will backwash the second plate 1443; after cleaning is completed, the motor 150 and the water pump 131 stop working, and the liquid inlet 112 continues to filter impurities in the water.

[0050] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A circulating treatment device (100) for aquaculture wastewater, characterized in that: include: A housing (110), the housing (110) comprising a chamber (111), a liquid inlet (112) and a liquid outlet (113), the liquid inlet (112) and the liquid outlet (113) both being in communication with the chamber (111), so that wastewater flows into the chamber (111) through the liquid inlet (112) and flows out of the chamber (111) from the liquid outlet (113); a filter assembly (120), the filter assembly (120) being arranged in the chamber (111) and having a filter chamber, the liquid inlet (112) being in communication with the filter chamber so that the wastewater flows into the filter chamber through the liquid inlet (112) to filter impurities in the wastewater, and the liquid outlet (113) being located below the filter assembly (120) so that the filtered wastewater flows out through the liquid outlet (113); a backwashing assembly (130), the backwashing assembly (130) being arranged in the chamber (111) and located above the filter assembly (120), the backwashing assembly (130) being used to wash the filter assembly (120); A dirt collecting assembly (140), the dirt collecting assembly (140) comprising a dirt collecting cylinder (141) and a flow guide (142), the flow guide (142) being made of an elastic material, the dirt collecting cylinder (141) being arranged in the filter assembly (120) and being connected to the inner circumferential surface of the housing (110), the upper end surface of the dirt collecting cylinder (141) being provided with an opening (1411) extending in the length direction of the filter assembly (120), the opening (1411) being arranged relative to the backwash assembly (130) in the up-down direction so that flushing water flowing out of the backwash assembly (130) flows into the dirt collecting cylinder (141), the flow guide (142) being arranged in the dirt collecting cylinder (141) and being arranged relative to the dirt collecting cylinder (141) along the dirt collecting cylinder. The filter assembly (141) is rotatable in the circumferential direction, the outer circumferential surface of the flow guide member (142) passes through the opening (1411) and abuts against the inner circumferential surface of the filter assembly (120), the flow guide member (142) is provided with a plurality of flow guide holes (1421) penetrating the flow guide member (142) along the radial direction of the dirt collecting barrel (141), the plurality of flow guide holes (1421) are arranged at intervals along the circumferential direction of the flow guide member (142), so that when the filter assembly (120) is cleaned, the backwashing assembly (130) flushes the filter assembly (120), the filter assembly (120) rotates to drive the flow guide member (142) to rotate, and the flushing water flowing out of the filter assembly (120) flows into the dirt collecting barrel (141) through the flow guide holes (1421); The dirt collecting cylinder (141) comprises an outer cylinder (143) and an inner cylinder (144); the outer cylinder (143) and the inner cylinder (144) are both arranged in the filter cavity and are both connected to the housing (110); the inner cylinder (144) is arranged in the outer cylinder (143) and the inner circumferential surface of the outer cylinder (143) and the outer circumferential surface of the inner cylinder (144) are arranged at intervals; the flow guide (142) is rotatably arranged between the outer cylinder (143) and the inner cylinder (144); the upper end surface of the outer cylinder (143) is provided with a a first opening (1431) extending in the length direction of the filter assembly (120); a second opening (1441) extending in the length direction of the filter assembly (120) is provided on the upper end surface of the inner cylinder (144); the first opening (1431) and the second opening (1441) are arranged opposite to each other in the up-down direction and spaced apart to define the opening (1411); when cleaning the filter assembly (120), flushing water after flushing the filter assembly (120) flows into the inner cylinder (144) through the opening (1411); The inner cylinder (144) comprises a first plate (1442), a second plate (1443) and a connecting plate (1444); the first plate (1442), the connecting plate (1444) and the second plate (1443) are sequentially connected along the circumference of the inner cylinder (144); the first plate (1442) and the second plate (1443) are relatively spaced apart along the circumference of the inner cylinder (144) to define the second port (1441); the first plate (1442) and the second plate (1443) are both filter plates, so that when the flushing water in the inner cylinder (144) is higher than a preset value, the flushing water flows into the guide hole (1421) through the filter plate.

2. The aquaculture wastewater circulation treatment equipment (100) according to claim 1, characterized in that: When the flushing water in the dirt collecting barrel (141) is higher than a preset value, the dirt collecting assembly (140) has a cleaning state. In the cleaning state, the flushing water in the dirt collecting barrel (141) flows into the guide hole (1421) and rotates with the guide hole (1421). When the flushing water rotates to above the first plate (1442) or the second plate (1443), the first plate (1442) or the second plate (1443) is flushed.

3. The aquaculture wastewater circulation treatment equipment (100) according to claim 1, characterized in that: One end of the inner cylinder (144) passes through the outside of the housing (110) and is suitable for being connected to an external device so that the flushing water in the inner cylinder (144) can be discharged from the inner cylinder (144).

4. The aquaculture wastewater circulation treatment device (100) according to claim 1, characterized in that: The filter assembly (120) is provided with a plurality of first filter holes, the filter plate is provided with a plurality of second filter holes, and the aperture of the first filter holes is not less than the aperture of the second filter holes.

5. The aquaculture wastewater circulation treatment equipment (100) according to claim 2, characterized in that: The outer circumferential surface of the outer cylinder (143) is provided with a plurality of first overflow holes (1432) and a second overflow hole (1433) penetrating the outer cylinder (143); the plurality of first overflow holes (1432) and the plurality of second overflow holes (1433) are arranged at intervals along the axial direction of the outer cylinder (143); the plurality of first overflow holes (1432) and the plurality of second overflow holes (1433) are arranged at intervals along the radial direction of the outer cylinder (143); the first overflow holes (1432) are arranged adjacent to the first plate (1442), and the second overflow holes (1433) are arranged adjacent to the second plate (1443).

6. The aquaculture wastewater circulation treatment device (100) according to any one of claims 1 to 5, characterized in that: The guide member (142) comprises a plurality of guide plates (1422) and a plurality of mounting plates (1423); the guide plates (1422) are made of elastic material; the guide plates (1422) extend in the radial direction of the dirt collecting cylinder (141); the mounting plates (1423) extend in the circumferential direction of the dirt collecting cylinder (141); the plurality of guide plates (1422) are arranged at intervals in the circumferential direction of the dirt collecting cylinder (141); at least one mounting plate (1423) is arranged between two adjacent guide plates (1422); two ends of the mounting plate (1423) are respectively connected to two adjacent guide plates (1422); the two adjacent guide plates (1422) and the mounting plate (1423) define the guide hole (1421); and at least two guide plates (1422) pass through the opening (1411) and abut against the inner circumferential surface of the filter assembly (120).

7. The aquaculture wastewater circulation treatment device (100) according to any one of claims 1 to 5, characterized in that: It also comprises a motor (150), the motor (150) being arranged on the outer peripheral surface of the housing (110) and connected to the filter assembly (120), so that when the filter assembly (120) is cleaned, the motor (150) drives the filter assembly (120) to rotate.

8. The aquaculture wastewater circulation treatment device (100) according to any one of claims 1 to 5, characterized in that: The backwashing assembly (130) comprises a water pump (131), a flushing pipe (132) and a plurality of nozzles (133); the water pump (131) is connected to the flushing pipe (132) so that the flushing water flows into the flushing pipe (132) through the water pump (131); the flushing pipe (132) is arranged above the filter assembly (120) and extends along the length direction of the filter assembly (120); the plurality of nozzles (133) are arranged on the flushing pipe (132) and are all connected to the flushing pipe (132); the plurality of nozzles (133) are arranged on a side of the flushing pipe (132) facing the filter assembly (120) and the plurality of nozzles (133) are arranged at intervals along the extension direction of the flushing pipe (132) so that the flushing water flushes the filter assembly (120) through the nozzles (133).

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