CN204151152U - A kind of aerator - Google Patents
A kind of aerator Download PDFInfo
- Publication number
- CN204151152U CN204151152U CN201420626034.7U CN201420626034U CN204151152U CN 204151152 U CN204151152 U CN 204151152U CN 201420626034 U CN201420626034 U CN 201420626034U CN 204151152 U CN204151152 U CN 204151152U
- Authority
- CN
- China
- Prior art keywords
- floating drum
- air floating
- pump box
- water
- rotation axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses a kind of aerator, comprise blower fan (1), pump box (2), inlet pipe (3) and air floating drum (4), the lower end of described air floating drum (4) is provided with position adjuster (9), the bottom of described inlet pipe (3) is connected with several microporous aeration devices (5), the lower end of described blower fan (1) is provided with rotation axis (11), the lower end of this rotation axis (11) is provided with pole (12), described pole (12) is all provided with cleaning brush (13), telescopic (7) is also provided with in the lower end of described pump box (2).The utility model has set up the assemblies such as aerating apparatus, cleaning brush and telescopic on oxygenating machine, the a large amount of microbubbles formed can improve water body dissolved oxygen amount, can also be separated and collect the suspended substance in water, the depth in oxygenation waters can also regulate, and improves water circulation efficiency, impels planktonic organism growth and breeding, improve water body fish-carrying ability, novel structure, easy to operate, applied widely.
Description
Technical field
The utility model relates to aquaculture bleeding technique field, particularly a kind of aerator.
Background technology
The oxygenating machine that current aquaculture uses has the type such as vane type, water wheel type, water jet and air-pump type, and vane type and water jet oxygenating machine can only stir the water body on surface, increase the oxygen dissolution amount of water surface, is difficult to improve again any water body dissolved oxygen amount dark; Water pump type can stir the water of certain depth, but the pressure of water outlet is too large, can cause damage to fish; Tracheae many employings nano material of air-pump type, tube wall is thicker, easily blocking and cost is higher, and cleaning also compares effort; Traditional waters cultivation, surface water is contacted by air, algae photosynthesis etc., its oxygen is reached capacity state, and temperature is also high, and almost anaerobic at the bottom of bottom water temperature degree, if surface water and bottom water can not cyclic permutation and renewal, the then residual baits of feed, the pollutent storage pools such as fish movement are in pond, water quality constantly worsens, ecological chain ruptures, and forms vicious cycle, and the energy for growth of water body declines, the fish disease that easy outburst is large, unfavorable efficient and healthful cultivation marketable fish.
Utility model content
The technical problems to be solved in the utility model there is provided a kind of can improve oxygenation efficiency again can the aerator of circularly purifying water quality.
The technical solution of the utility model is as follows:
A kind of aerator, comprise blower fan, pump box, inlet pipe and air floating drum, described air floating drum is installed in the upper end of pump box, described blower fan is installed in the upper end of air floating drum, described inlet pipe is connected through with blower fan, one section of cone-shaped bulge is stretched out at the middle part of described air floating drum lower surface downwards, this cone-shaped bulge stretches into downwards in pump box, the lower end of described air floating drum is provided with position adjuster, multiple flow deflector is provided with between the lower surface of described air floating drum and position adjuster upper surface, multiple described flow deflector is arranged in the shape of a spiral along the outer of pump box upper surface, a water outlet is formed between every two adjacent described flow deflectors, the bottom of described inlet pipe is connected with several microporous aeration devices, described in several below of microporous aeration device also level be provided with filter net cloth, the periphery of described filter net cloth is fixed on the pump box inwall of correspondence position, the output terminal of described blower fan is connected with mechanical reduction gear and rotation axis from top to bottom in turn, and described rotation axis is fed through air floating drum and filter net cloth from top to bottom successively, and the lower end level of this rotation axis is provided with pole.
Adopt above structure, can by filling opening water-filling in the hollow structure of position adjuster, to make on the part of more than air floating drum lower surface bubbles through the water column, utilize blower fan that oxygen-containing gas is sent into inlet pipe and gas-distributing pipe, and pass in microporous aeration device, after consequent microbubble enters water body, rise from the bottom up, due to the aeration effect of microbubble, the oxygen-containing gas carried secretly in microbubble can be dissolved in water easily, simultaneously, the tension force on microbubble surface can also be utilized, by the suspended substance in water body and soluble protein species adsorbs on microbubble, go out from the water outlet benefit between flow deflector, reduce the objectionable impuritiess such as Suspended Matter in Water, because flow deflector is helically arranged along the outer of pump box, pump box water body out then can form rotary water current, near driving, water body also can form a swirling because of rotation, food-residue then in water, the suspended substances such as the excretion of fish can be gathered in settling region gradually under the effect of water body whirlpool centrifugal force, the water body of bottom upwards turns over and gushes on the other hand, screen cloth filters after filtration, while filter net cloth carries out suspended substance in water to filter, rotation axis under mechanical reduction gear slows down, cleaning brush then can be driven to clear up filter net cloth, it is made to filter water body without blocking large discharge, water after filtration the water outlet formed between flow deflector flows back to fishpond, surface water and bottom water is made to obtain circulating and exchange, suspended substance under filter net cloth cleaning then falls into settling region and processes, flexible operation, practical.
Water body is entered in order to make gas uniform, reduce gas to the impact of water body, as preferably, the bottom of described inlet pipe is connected with a gas-distributing pipe, described gas-distributing pipe is provided with multiple air outlet vertically, be provided with a through hole in the upper end of each described microporous aeration device, this through hole is connected through with the air outlet of gas-distributing pipe correspondence position.
In order to increase the quantity of microbubble, ensure that micro pore sheet is not under stress out of shape and comes off simultaneously, reduce water body flow resistance simultaneously, increased water flow throughput and oxygen dissolution amount, as preferably, described microporous aeration device comprises micro pore sheet, two raggle blocks and micropore back-up block, described micropore back-up block is the skeleton construction of Elliptic Cylinder, its cross section ovalize, described micro pore sheet covers on micropore back-up block, two described raggle blocks are all suitable with the cross section size of micropore back-up block, and it is left with micropore back-up block respectively, the oval end face of right both sides is fastened.
In order to the pressure of buffer strip carrier of oxygen, the band oxygen physical efficiency entered evenly is discharged under stable pressure effect, the middle part of aerating apparatus is played to the effect of supplemental support simultaneously, as preferably, multiple dividing plate is installed with in described micropore back-up block, each dividing plate is provided with several ventilating pits, and multiple described dividing plate intersects fixing and forms multiple grid plenum chamber with described hollow elliptical framework.
Situation about blocking is there is not in order to prevent the micropore in micro pore sheet, simultaneously again can the objectionable impurities such as suspended substance in Separation of Water, as preferably, the thickness range of described micro pore sheet is 0.01 ~ 0.15mm, its surface uniform is placed with several micropores, and the diameter range of each described micropore is 0.01 ~ 0.1mm.
In order to improve the efficiency of microbubble diffusion of oxygen, as preferably, the density value scope of described micropore arrangement is 25 ~ 150/cm
2.
In order to make pump box swim in the suitable degree of depth, prevent from leaking and be convenient to adjusting counterweight, as preferably, described position adjuster is the hollow structure of ring-type, and described position adjuster is fixedly connected with the top of pump box, and the side of this position adjuster outer is provided with water filling port simultaneously.
Rotation axis under mechanical reduction gear slows down, then cleaning brush can be driven to clear up filter net cloth, and in order to reduce the loss of cleaning brush, as preferably, be provided with cleaning brush in the upper surface of described pole, the top of described cleaning brush contacts with the lower surface of filter net cloth,
After can being filtered by filter net cloth to allow the water body in pump box, recirculation enter fishpond, and as preferably, described coupling shaft and filter net cloth wear position and be embedded with sealing-ring, and the place of wearing of this coupling shaft and air floating drum is also embedded with sealing-ring.
For the situation of water body in fishpond, corresponding strengthen or reduce oxygenation region, strengthening and the circulation without dead angle of water body mesexine water and bottom water is substituted, stablize by the region of oxygenation water body, as preferably, be also provided with telescopic in the lower end of described pump box.
Beneficial effect: the utility model has set up the assemblies such as aerating apparatus, cleaning brush and telescopic on oxygenating machine, the a large amount of microbubbles formed can improve water body dissolved oxygen amount, can also suspended substance in Separation of Water, the depth in oxygenation waters can also regulate, improve water circulation efficiency, novel structure, easy to operate, applied widely.
Accompanying drawing explanation
Fig. 1 is using state structural representation of the present utility model.
Fig. 2 is the A-A direction view of Fig. 1.
Fig. 3 is microporous aeration device structural representation.
Fig. 4 is the structural representation of flow deflector.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As Fig. 1, shown in Fig. 2 and Fig. 4, the utility model is by blower fan 1, pump box 2, the compositions such as inlet pipe 3 and air floating drum 4, described pump box 2 is upper, the cavity structure of lower opening, described air floating drum 4 is installed in the upper end of pump box 2, described blower fan 1 is installed in the upper end of air floating drum 4, described inlet pipe 3 is fed through pump box 2 from the bottom up successively, air floating drum 4 and blower fan 1 also upwards emit blowing machine 1, this inlet pipe 3 is connected through with blower fan 1, one section of cone-shaped bulge is stretched out at the middle part of described air floating drum 4 lower surface downwards, this cone-shaped bulge stretches in pump box 2 downwards, the lower end of described air floating drum 4 is provided with position adjuster 9, described position adjuster 9 is the hollow structure of ring-type, the side of this position adjuster 9 outer is provided with water filling port 15, described position adjuster 9 is fixedly connected with the top of pump box 2, multiple flow deflector 10 is provided with between the lower surface of described air floating drum 4 and position adjuster 9 upper surface, described position adjuster 9 is fixedly connected with the top of pump box 2, multiple flow deflector 10 is installed with between described air floating drum 4 and position adjuster 9, multiple described flow deflector 10 is arranged in the shape of a spiral along the outer of pump box 2 upper surface, a water outlet 41 is formed between every two adjacent described flow deflectors 10, the bottom of described inlet pipe 3 is connected with a gas-distributing pipe 31, and described gas-distributing pipe 31 is connected with several microporous aeration devices 5 vertically.
As shown in Figure 3, described microporous aeration device 5 comprises micro pore sheet 51, two raggle blocks 52 and micropore back-up block 53, described micropore back-up block 53 is the skeleton construction of Elliptic Cylinder, its cross section ovalize, described micro pore sheet 51 covers on micropore back-up block 53, two described raggle blocks 52 are all suitable with the cross section size of micropore back-up block 53, and are fastened with the oval end face of micropore back-up block 53 arranged on left and right sides respectively; In described hollow, rectangular frame, be installed with multiple dividing plate 54, each dividing plate 54 is provided with several ventilating pits, and multiple described dividing plate 54 intersects fixing and forms multiple grid plenum chamber with described hollow elliptical framework; The thickness range of described micro pore sheet 51 is 0.01 ~ 0.15mm, and the surface uniform of this micro pore sheet 51 is placed with several micropores 511, and the diameter range of each described micropore 511 is 0.01 ~ 0.1mm, and the density value scope that described micropore 511 is arranged is 25 ~ 150/cm
2, be provided with a through hole in the upper end of described microporous aeration device 5, this through hole is connected through with the correspondence position of gas-distributing pipe 31.
As depicted in figs. 1 and 2, described in several below of microporous aeration device 5 also level be provided with filter net cloth 6, the periphery of described filter net cloth 6 is fixed on pump box 2 inwall of correspondence position, the lower end of described pressure fan 1 is connected with mechanical reduction gear 14 and rotation axis 11 from top to bottom in turn, described rotation axis 11 is fed through air floating drum 4 and filter net cloth 6 from top to bottom successively, the lower end level of this rotation axis 11 is provided with pole 12, the upper surface of described pole 12 is provided with cleaning brush 13, the top of described cleaning brush 13 contacts with the lower surface of filter net cloth 6, described rotation axis 11 is embedded with sealing-ring 8 with the position that wears of filter net cloth 6, this coupling shaft 11 is also embedded with sealing-ring 8 with the place of wearing of air floating drum 4, telescopic 7 is also provided with in the lower end of described pump box 2, can strengthen accordingly or reduce oxygenation region, stable by the region of oxygenation water body, strengthen and the circulation without dead angle of water body mesexine water and bottom water is substituted.
Using method of the present utility model is as follows:
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, appropriate water is filled with toward position adjuster 9 li by water filling port 15, after the top, suspended substance settling region (sign) that the utility model is placed in fishpond is fixed, make the fraction floats of more than air floating drum 4 lower surface on the water surface, telescopic 7 is extended to the length needed to the water oxygenation degree of depth, start blower fan 1 and oxygen-containing gas is transported to microporous aeration device 5 li by inlet pipe 2 and gas-distributing pipe 31, gas is when micro-pore 511, form a large amount of microbubble, burst in frequent succession in the process that microbubble rises, oxygen in microbubble can be dissolved in water body very soon, the tension force on microbubble surface can also be utilized simultaneously, by the suspended substance in water body and soluble protein species adsorbs on microbubble, discharge from the water outlet 41 between flow deflector 10, reduce the objectionable impuritiess such as Suspended Matter in Water, because flow deflector 10 is helically arranged along the outer of pump box 2, pump box 2 water body out then can form rotary water current, near driving, water body rotates towards a direction, food-residue then in water, the suspended substances such as the excretion of fish can be gathered in settling region under the influence of centrifugal force gradually, in water body, bottom water upwards pours in pump box 2 bottom telescopic 7 simultaneously, consequent momentum potential energy drives current to form the current of one rotation, filter through filter net cloth 6 again, water after filtration flows back to fishpond from the water outlet 41 between air floating drum 4 and position adjuster 9, form rotary water current, suspended substance is then blocked in below filter net cloth 6, axle meanwhile on blower fan 1 is by after mechanical reduction gear 14, rotation axis 11 and pole 12 is driven to rotate, and drive cleaning brush 13 to rotate, scrub the suspended substance above filter net cloth 6, the suspended substance on filter net cloth 6 is made to drop to suspended substance settling region at the bottom of pond, and discharge outside pond by residual sea water pump (sign) through blow-off pipe, such aquaculture water surface water and the continuous alternate cycles of bottom water, after collecting blowdown after filtration, the dissolved oxygen amount of water body and transparency will be improved simultaneously, the water body filtered after oxygenation flows back to fishpond through the water outlet 41 between air floating drum 4 and position adjuster 9.
The tensile elongation of expansion pipe 7 can also be adjusted according to the degree of depth in pond and water body situation, with this, better oxygenation filtration operation is carried out to target waters, promote the water cycle in fishpond, when filter net cloth 6 carries more filtrate, blower fan 1 can drive the rotation axis 11 that is connected to and pole 12 to rotate, and drives cleaning brush 13 to rotate cleaning, and such oxygenating machine not only obtains clean, the collection of suspended substance is also relatively concentrated stable, is also convenient to sedimentary discharge.
When summer temp is higher, the water temperature of approximately level part is higher, depths water temperature is lower, form a difference in specific gravity under the influence of the temperature, water in fishpond from the telescopic 7 bottom the utility model after filtration screen cloth 6 and microporous aeration device 5 flow into pump box 2, then flow back to the topmost surface in fishpond through water outlet 41, effectively can avoid the anoxia phenomenon that water body brings due to thermal stratification, also effectively can promote the amount reproduction of algae, for fish provides natural bait.
The oxygenation amount adopting above structure can realize oxygen is greater than 6kg/kwh, reaches the fish loading amount being greater than 8000kg/kwh, when the diameter range of air floating drum 4 is 80 ~ 200cm, also can reach 800 ~ 1500m
3water body discharge capacity, water oxygenation purification function is more remarkable, and also can promote a large amount of natural bait flourish, reduce costs, efficiency is higher.
It is consistent with prior art that the utility model does not describe part, and therefore not to repeat here.
These are only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing the utility model specification sheets and accompanying drawing content to do; directly or indirectly be used in the technical field that other are relevant, all in like manner within scope of patent protection of the present utility model.
Claims (10)
1. an aerator, comprise blower fan (1), pump box (2), inlet pipe (3) and air floating drum (4), described air floating drum (4) is installed in the upper end of pump box (2), described blower fan (1) is installed in the upper end of air floating drum (4), described inlet pipe (3) is connected through with blower fan (1), it is characterized in that: one section of cone-shaped bulge is stretched out at the middle part of described air floating drum (4) lower surface downwards, this cone-shaped bulge stretches in pump box (2) downwards, the lower end of described air floating drum (4) is provided with position adjuster (9), multiple flow deflector (10) is provided with between the lower surface of described air floating drum (4) and position adjuster (9) upper surface, multiple described flow deflector (10) is arranged in the shape of a spiral along the outer of pump box (2) upper surface, a water outlet (41) is formed between every two adjacent described flow deflectors (10), the bottom of described inlet pipe (3) is connected with several microporous aeration devices (5), described in several below of microporous aeration device (5) also level be provided with filter net cloth (6), the edge of described filter net cloth (6) is fixed on pump box (2) inwall of correspondence position, the output terminal of described blower fan (1) is connected with mechanical reduction gear (14) and rotation axis (11) from top to bottom in turn, described rotation axis (11) is fed through air floating drum (4) and filter net cloth (6) from top to bottom successively, and the lower end level of this rotation axis (11) is provided with pole (12).
2. a kind of aerator according to claim 1, it is characterized in that: the bottom of described inlet pipe (3) is connected with a gas-distributing pipe (31), described gas-distributing pipe (31) is provided with multiple air outlet vertically, be provided with a through hole in the upper end of each described microporous aeration device (5), this through hole is connected through with the air outlet of gas-distributing pipe (31) correspondence position.
3. a kind of aerator according to claim 2, it is characterized in that: described microporous aeration device (5) comprises micro pore sheet (51), two raggle blocks (52) and micropore back-up block (53), the skeleton construction that described micropore back-up block (53) is Elliptic Cylinder, its cross section ovalize, described micro pore sheet (51) covers on micropore back-up block (53), two described raggle blocks (52) are all suitable with the cross section size of micropore back-up block (53), and it is left with micropore back-up block (53) respectively, the oval end face of right both sides is fastened.
4. a kind of aerator according to claim 3, it is characterized in that: in described micropore back-up block (53), be installed with multiple dividing plate (54), each dividing plate (54) is provided with several ventilating pits, and multiple described dividing plate (54) is intersected fixing and formed multiple grid plenum chamber with described hollow elliptical framework.
5. a kind of aerator according to claim 3, it is characterized in that: the thickness range of described micro pore sheet (51) is 0.01 ~ 0.15mm, its surface uniform is placed with several micropores (511), and the diameter range of each described micropore (511) is 0.01 ~ 0.1mm.
6. a kind of aerator according to claim 5, is characterized in that: the density value scope that described micropore (511) is arranged is 25 ~ 150/cm
2.
7. a kind of aerator according to claim 1, it is characterized in that: the hollow structure that described position adjuster (9) is ring-type, described position adjuster (9) is fixedly connected with the top of pump box (2), and the side of this position adjuster (9) outer is provided with water filling port (15).
8. a kind of aerator according to claim 1, it is characterized in that: be provided with cleaning brush (13) in the upper surface of described pole (12), the top of described cleaning brush (13) contacts with the lower surface of filter net cloth (6).
9. a kind of aerator according to claim 1, it is characterized in that: described rotation axis (11) is embedded with sealing-ring (8) with the position that wears of filter net cloth (6), this rotation axis (11) is also embedded with sealing-ring (8) with the place of wearing of air floating drum (4).
10. a kind of aerator according to claim 1, is characterized in that: be also provided with telescopic (7) in the lower end of described pump box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626034.7U CN204151152U (en) | 2014-10-27 | 2014-10-27 | A kind of aerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626034.7U CN204151152U (en) | 2014-10-27 | 2014-10-27 | A kind of aerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204151152U true CN204151152U (en) | 2015-02-11 |
Family
ID=52509287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420626034.7U Withdrawn - After Issue CN204151152U (en) | 2014-10-27 | 2014-10-27 | A kind of aerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204151152U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261579A (en) * | 2014-10-27 | 2015-01-07 | 蒋世伟 | Oxygen enrichment device |
| CN110810321A (en) * | 2019-12-06 | 2020-02-21 | 袁金凤 | Oxygen supply device for aquatic product culture |
| CN114766395A (en) * | 2022-04-02 | 2022-07-22 | 温州市渔业技术推广站 | Stream ecological breeding method and breeding device based on canvas pond |
-
2014
- 2014-10-27 CN CN201420626034.7U patent/CN204151152U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261579A (en) * | 2014-10-27 | 2015-01-07 | 蒋世伟 | Oxygen enrichment device |
| CN104261579B (en) * | 2014-10-27 | 2015-12-09 | 蒋世伟 | Aerator |
| CN110810321A (en) * | 2019-12-06 | 2020-02-21 | 袁金凤 | Oxygen supply device for aquatic product culture |
| CN114766395A (en) * | 2022-04-02 | 2022-07-22 | 温州市渔业技术推广站 | Stream ecological breeding method and breeding device based on canvas pond |
| CN114766395B (en) * | 2022-04-02 | 2023-10-03 | 温州市渔业技术推广站 | Ecological brook culture method and device based on canvas pool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104261579B (en) | Aerator | |
| CN109090010B (en) | High-efficient clear prawn of arranging of filth breeds pond | |
| CN204151152U (en) | A kind of aerator | |
| CN107746153A (en) | A kind of water quality segmentation filtration equipment for clarifying of shrimp aquaculture | |
| CN107311316A (en) | A kind of black and odorous water prosthetic device | |
| CN107743904A (en) | A kind of environmentally friendly floatation type aquaculture system | |
| CN208776414U (en) | A kind of self-closing integration apparatus of circulation | |
| CN104857772A (en) | Honey stirring purification device | |
| CN105498340A (en) | Solid-liquid separation method and solid-liquid separation device for water body | |
| CN206720787U (en) | A kind of ammonia nitrogen separator of fish farming system | |
| CN203934502U (en) | A kind of factory crab cultivating system | |
| CN206308103U (en) | A kind of potential energy reoxygenation sewage disposal parallel system water-supply apparatus | |
| CN111039458B (en) | Ecological prosthetic devices in plateau lake fishery waters | |
| CN204672013U (en) | A kind of honey stirs knot screen | |
| CN105903265B (en) | A kind of water body multistage equipment for separating liquid from solid and method | |
| CN103285660A (en) | Circulating water device for shrimp aquaculture and operating method thereof | |
| CN105903396A (en) | Energy-aggregated gas stirring method and device | |
| CN108739566A (en) | Energy-saving and environment-friendly crab cultivation equipment | |
| CN206570136U (en) | A kind of immersion water purifying device | |
| CN211644889U (en) | Algae removing device for dry-wet alternative water body purification treatment | |
| CN209950127U (en) | Floating type aquaculture pond | |
| CN207659234U (en) | Algae separator | |
| CN220044597U (en) | Fish pond deep water oxygenation device for aquaculture | |
| CN201938220U (en) | Filtering device for breeding pool | |
| CN110818189A (en) | Ecological restoration method for eutrophic river water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150211 Effective date of abandoning: 20151209 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |