CN109717123B - Sectional type discharging device for seawater pond culture tail water - Google Patents
Sectional type discharging device for seawater pond culture tail water Download PDFInfo
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- CN109717123B CN109717123B CN201910074403.3A CN201910074403A CN109717123B CN 109717123 B CN109717123 B CN 109717123B CN 201910074403 A CN201910074403 A CN 201910074403A CN 109717123 B CN109717123 B CN 109717123B
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Abstract
The invention discloses a sectional type discharging device for tail water of seawater pond culture, and aims to provide a sectional type discharging device for tail water of seawater pond culture, which can realize sectional discharge and centralized treatment of the tail water of the culture with different pollution degrees, thereby improving the purification effect and the treatment efficiency of the tail water of the culture. It is including breeding elevated pond, blowdown pretreatment pool, breeding tail water treatment pond and sectional type waste fitting discharging, the water level of breeding elevated pond is higher than the water level in blowdown pretreatment pool, the blowdown pretreatment pool is linked together through the lifting pipe with breeding between the tail water treatment pool, is equipped with the water pump on the lifting pipe, sectional type waste fitting discharging includes blowdown pipe in advance, main blowdown pipe, sets up the main blowdown valve on blowdown valve in advance and the main blowdown pipe on the blowdown pipe in advance.
Description
Technical Field
The invention relates to the field of aquaculture tail water treatment, in particular to a sectional type discharging device for aquaculture tail water in a seawater pond.
Background
The high-level pond culture is a typical representative of a high-yield mode of the penaeus vannamei boone, the mode has high yield and good benefit, and the development is very rapid in recent years. In the process of prawn high-level pond culture, a large amount of residual baits and prawn excrement are released into culture water or accumulated at the bottom of the pond, so that the pollutant content of the culture water exceeds the discharge standard, and if the residual baits and the prawn excrement are directly discharged, the offshore environment is inevitably polluted.
At present, the treatment of the tail water of the aquaculture mainly comprises the treatment of a tail water treatment tank of the aquaculture, measures such as ecological ditches, precipitation, aeration, microbial treatment, plant purification and the like are mainly adopted in the tail water treatment tank of the aquaculture, and the tail water purification of the aquaculture plays a certain role, but the inventor finds that the central pollution discharge of a high-level tank has specificity compared with the pollution discharge of the common tank, and when the central pollution discharge of the high-level tank is carried out, a large amount of residual baits, excrement, algae and other organic matters are accumulated at the bottom of the tank, so that the initial stage water (water in the initial stage of pollution discharge) of the pollution discharge is obviously blackened and smelly, the pollution degree is obviously higher than that in the later stage of the pollution discharge, and the pollution degree of the initial stage; and when present elevated tank central authorities blowdown, directly discharge the tail water directly and handle in breeding the tail water treatment pond, present elevated tank central authorities blowdown is in the mode and will very big aggravate the pollution degree of the tail water of breeding that discharges into breeding the tail water treatment pond, influences the purifying effect of breeding the tail water, reduces and breeds tail water treatment efficiency.
Disclosure of Invention
The invention aims to provide a sectional type discharge device for aquaculture tail water in a seawater pond, which can realize sectional discharge and centralized treatment of aquaculture tail water with different pollution degrees, thereby improving the purification effect and treatment efficiency of the aquaculture tail water.
The technical scheme of the invention is as follows:
a seawater pond culture tail water sectional type discharge device comprises a culture elevated tank, a sewage discharge pretreatment tank, a culture tail water treatment tank and a sectional type sewage discharge device, the water level of the culture elevated tank is higher than that of the sewage disposal pretreatment tank, the sewage disposal pretreatment tank is communicated with the culture tail water treatment tank through a water lifting pipe, a water pump is arranged on the water lifting pipe, the sectional type sewage draining device comprises a pre-sewage draining pipe, a main sewage draining pipe, a pre-sewage draining valve arranged on the pre-sewage draining pipe and a main sewage draining valve arranged on the main sewage draining pipe, the pre-sewage discharge pipe comprises a first pre-sewage discharge pipe arranged in the middle of the bottom surface of the culture elevated tank, a second pre-sewage discharge pipe arranged on the bottom surface of the sewage discharge pretreatment tank, and a first connecting pipe for connecting the lower end of the first pre-sewage discharge pipe with the lower end of the second pre-sewage discharge pipe, the upper end of the first pre-drainage pipe is flush with the bottom surface of the culture high-level pond where the first pre-drainage pipe is located or lower than the bottom surface of the culture high-level pond where the first pre-drainage pipe is located; the main sewage draining pipe comprises a first main sewage draining pipe arranged in the middle of the bottom surface of the culture high-level pond, a second main sewage draining pipe arranged on the bottom surface of the culture tail water treatment pond and a second connecting pipe for connecting the lower end of the first main sewage draining pipe and the lower end of the second main sewage draining pipe, wherein the upper end of the first main sewage draining pipe is higher than the upper end of the first pre-sewage draining pipe.
In the sectional type sewage discharging device of the seawater pond culture tail water sectional type discharging device, because the upper end of the first pre-sewage discharging pipe is flush with or lower than the bottom surface of the culture high-level pond where the first pre-sewage discharging pipe is located, and the upper end of the first main sewage discharging pipe is higher than the upper end of the first pre-sewage discharging pipe, in such a way, during sewage discharging, the pre-sewage discharging valve can be opened firstly, so that a large amount of residual baits, excreta, algae and other organic matters accumulated at the bottom of the culture high-level pond are discharged into the sewage discharging pretreatment pond through the pre-sewage discharging pipe firstly, and are pretreated through the sewage discharging pretreatment pond, and when the tail water discharged by the pre-sewage discharging pipe is basically consistent with the water in the culture pond, the pre-sewage discharging valve is closed; then, opening a main sewage discharge valve to discharge the culture tail water of the culture high-level pond into a culture tail water treatment pond through a main sewage discharge pipe, and performing purification treatment through the culture tail water treatment pond; after the pretreatment of the aquaculture tail water in the sewage disposal pretreatment tank is finished, starting a water pump, and pumping the aquaculture tail water in the sewage disposal pretreatment tank into an aquaculture tail water treatment tank through a water lifting pipe for purification treatment; therefore, the culture tail water with different pollution degrees is discharged in a segmented mode and treated in a centralized mode, and the purification effect and the treatment efficiency of the culture tail water are improved.
Preferably, the device further comprises a pre-sewage-discharge auxiliary device, wherein the pre-sewage-discharge auxiliary device comprises a spiral track extending from the middle of the bottom surface of the culture high-level pond to the edge of the bottom surface of the culture high-level pond, a sliding block sliding along a spiral pipeline, a support arranged on the sliding block, a shaft rod rotatably arranged on the support, a supporting roller arranged on the shaft rod, a rolling brush barrel coaxially arranged on the shaft rod and a waterproof motor arranged on the support and used for driving the shaft rod to rotate, the spiral track comprises the spiral pipeline, the spiral pipeline is laid on the bottom surface of the culture high-level pond, the sliding block can rotate around the spiral pipeline, the axis of the shaft rod is perpendicular to the sliding direction of the sliding block, the supporting roller is supported on the bottom surface of the culture high-level pond, the rolling brush barrel comprises a plurality of brush bristles, and the brush bristles are abutted to.
The pre-sewage discharge auxiliary device of the scheme is characterized in that when the pre-sewage discharge valve is opened, the waterproof motor works, the support roller and the rolling brush cylinder are driven to rotate together through the shaft rod, the support roller is supported on the bottom surface of the culture high-level pond, so that the sliding block is driven to slide along the spiral pipeline, meanwhile, the rolling brush cylinder stirs a large amount of residual baits, excretions, algae and other organic matters deposited on the bottom surface of the culture high-level pond, therefore, after the pre-sewage discharge valve is opened, a large amount of residual baits, excretions, algae and other organic matters accumulated at the bottom of the culture high-level pond can be ensured to be discharged into the sewage discharge pretreatment pond through the pre-sewage discharge pipe, the phenomenon that a large amount of residual baits, excretions, algae and other organic matters accumulated at the bottom of the culture high-level pond can not be discharged into the sewage discharge pond through the pre-sewage discharge pipe in the opening process of the pre-sewage discharge valve is avoided, meanwhile, after the main sewage discharge valve is opened, organic matters such as residual bait, excrement, algae and the like which are not discharged from the bottom of the pond through the pre-sewage discharge pipe are discharged into the culture tail water treatment pond through the main sewage discharge pipe, so that the purification effect of the culture tail water is influenced, and the treatment efficiency of the culture tail water is reduced.
Preferably, the number of the supporting rollers is two, the two supporting rollers are symmetrically distributed on two sides of the sliding block, the number of the rolling brush cylinders is also two, and the two rolling brush cylinders are symmetrically distributed on two sides of the sliding block.
Preferably, the output shaft of the waterproof motor is parallel to the shaft rod, and the output shaft of the waterproof motor is connected with the shaft rod through a gear transmission mechanism.
Preferably, the height difference between the upper end of the first main sewage discharge pipe and the upper end of the first preliminary sewage discharge pipe is 30-50 cm.
Preferably, the edge of the bottom surface of the culture high-level pond inclines downwards towards the middle part of the bottom surface of the culture high-level pond.
Preferably, the bottom surface of the culture high-level pond is also provided with an anti-escape mesh enclosure, and the upper end of the first pre-drainage pipe and the upper end of the first main drainage pipe are both positioned in the anti-escape mesh enclosure.
Preferably, a diversion canal is arranged in the sewage disposal pretreatment tank, a plurality of partition plates for dividing the diversion canal into zigzag flow channels are arranged in the diversion canal, and the upper end of the second pre-sewage discharge pipe is positioned in the diversion canal.
Preferably, the bottom surface of the sewage disposal pretreatment tank is provided with a plurality of aeration pipes, and the aeration pipes are provided with a plurality of aeration heads.
The invention has the beneficial effects that: the culture tail water with different pollution degrees can be discharged in sections and treated in a centralized way, so that the purification effect and the treatment efficiency of the culture tail water are improved.
Drawings
FIG. 1 is a schematic structural view of a seawater pond culture tail water sectional type discharge device according to an embodiment of the invention.
Fig. 2 is a top view of a sewage pretreatment tank of a seawater pond culture tail water sectional type draining device according to an embodiment of the invention.
Fig. 3 is a top view of the cultivation head tank of the seawater pond cultivation tail water sectional type discharge device according to the second embodiment of the invention.
Fig. 4 is a schematic structural diagram of a pre-sewage discharge auxiliary device of a seawater pond culture tail water sectional type discharge device according to a second embodiment of the invention.
Fig. 5 is a schematic structural diagram of a rolling brush drum according to a second embodiment of the present invention.
In the figure:
a culture high-level pond 1 and an escape-proof mesh enclosure 1.1;
the sewage treatment device comprises a sewage pretreatment tank 2, a diversion canal 2.1, an aeration pipe 2.2, an aeration head 2.3 and a partition plate 2.4;
a culture tail water treatment pool 3 is arranged,
the sectional type sewage disposal device comprises a sectional type sewage disposal device 4, a first pre-sewage disposal pipe 4.11, a first connecting pipe 4.12, a second pre-sewage disposal pipe 4.13, a first main sewage disposal pipe 4.21, a second connecting pipe 4.22, a second main sewage disposal pipe 4.23, a pre-sewage disposal valve 4.3 and a main sewage disposal valve 4.4;
a water lifting pipe 5;
a water pump 6;
the device comprises a pre-sewage-discharge auxiliary device 7, a spiral track 7.1, a sliding block 7.2, a support 7.3, a shaft rod 7.4, a supporting roller 7.5, a rolling brush cylinder 7.6, bristles 7.61, a waterproof motor 7.7 and a gear transmission mechanism 7.8.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections, either mechanical or electrical, or communicating with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in figures 1 and 2, the sectional type discharging device for the aquaculture tail water of the seawater pond comprises an aquaculture high-level pond 1, a sewage pre-treatment pond 2, an aquaculture tail water treatment pond 3 and a sectional type sewage discharging device 4. The water level of the culture high-level pond is higher than that of the sewage disposal pretreatment pond. The bottom surface of the sewage disposal pretreatment tank is provided with a plurality of aeration pipes 2.2 which are communicated with each other, and the aeration pipes are provided with a plurality of aeration heads 2.3. The aeration pipe provides an air source through a blower. The aeration pipe is communicated with the outlet of the blower.
In this embodiment, the cultivation tail water treatment tank 3 includes a ditch, a sedimentation tank, an aeration tank, a microorganism treatment tank and a plant purification tank which are sequentially communicated. The sewage disposal pretreatment tank is communicated with the aquaculture tail water treatment tank through a water lifting pipe 5, and particularly, the sewage disposal pretreatment tank is communicated with a ditch of the aquaculture tail water treatment tank through a water lifting pipe. The water lifting pipe comprises a vertical front water lifting pipe, a vertical rear water lifting pipe and a water lifting connecting pipe for connecting the upper end of the vertical front water lifting pipe and the upper end of the vertical rear water lifting pipe, the lower end of the vertical front water lifting pipe extends into the sewage disposal pretreatment tank, and the lower end of the vertical rear water lifting pipe extends into the drainage channel. Be equipped with water pump 6 on the water lift pipe, specifically, the water pump setting is on the water lift connecting pipe.
The sectional type sewage discharging device comprises a pre-sewage discharging pipe, a main sewage discharging pipe, a pre-sewage discharging valve 4.3 arranged on the pre-sewage discharging pipe and a main sewage discharging valve 4.4 arranged on the main sewage discharging pipe.
The pre-drainage pipe comprises a first pre-drainage pipe 4.11 arranged in the middle of the bottom surface of the culture high-level pond, a second pre-drainage pipe 4.13 arranged on the bottom surface of the sewage pre-treatment pond, and a first connecting pipe 4.12 connecting the lower end of the first pre-drainage pipe and the lower end of the second pre-drainage pipe. The first pre-drainage pipe is vertically arranged. The second pre-drainage pipe is vertically arranged. The upper port of the first pre-drainage pipe is communicated with the culture high-level pond. The second pre-drainage pipe is communicated with the drainage pretreatment tank. The upper end of the first pre-drainage pipe is flush with the bottom surface of the culture high-level pond where the first pre-drainage pipe is located or lower than the bottom surface of the culture high-level pond where the first pre-drainage pipe is located.
The main sewage draining pipe comprises a first main sewage draining pipe 4.21 arranged in the middle of the bottom surface of the culture high-level pond, a second main sewage draining pipe 4.23 arranged on the bottom surface of the culture tail water treatment pond, and a second connecting pipe 4.22 connecting the lower end of the first main sewage draining pipe and the lower end of the second main sewage draining pipe. The first main sewage discharge pipe is vertically arranged. The second main sewage discharge pipe is vertically arranged. The upper port of the first main sewage discharge pipe is communicated with the culture high-level pond. The upper port of the second main sewage discharge pipe is communicated with the culture tail water treatment tank, and particularly, the upper port of the second main sewage discharge pipe is communicated with a ditch of the culture tail water treatment tank. The upper end of the first main sewage discharge pipe is higher than the upper end of the first pre-sewage discharge pipe, and in the embodiment, the height difference between the upper end of the first main sewage discharge pipe and the upper end of the first pre-sewage discharge pipe is 30-50 cm.
In the sectional type sewage discharging device of the seawater pond culture tail water sectional type discharging device, because the upper end of the first pre-sewage discharging pipe is flush with or lower than the bottom surface of the culture high-level pond where the first pre-sewage discharging pipe is located, and the upper end of the first main sewage discharging pipe is higher than the upper end of the first pre-sewage discharging pipe, in such a way, during sewage discharging, the pre-sewage discharging valve can be opened firstly, so that a large amount of organic matters such as residual baits, excretions and algae accumulated at the bottom of the culture high-level pond are discharged into the sewage discharging pretreatment pond through the pre-sewage discharging pipe firstly, and are pretreated through the sewage discharging pretreatment pond, and when the tail water discharged by the pre-sewage discharging pipe is basically consistent with the water in the culture pond, the pre-sewage discharging valve is closed; and then, opening a main sewage discharge valve to discharge the culture tail water of the culture high-level pond into a culture tail water treatment pond through a main sewage discharge pipe, and performing purification treatment through the culture tail water treatment pond.
When the pre-sewage discharge valve is closed, the culture tail water in the sewage disposal pretreatment tank is firstly precipitated for 2-3h, then aeration is carried out through the aeration pipe and the aeration head for 4-8h, and the pretreatment of the culture tail water in the sewage disposal pretreatment tank is completed. After the pretreatment of the aquaculture tail water in the sewage disposal pretreatment tank is finished, starting a water pump, and pumping the aquaculture tail water in the sewage disposal pretreatment tank into an aquaculture tail water treatment tank through a water lifting pipe for purification treatment; therefore, the culture tail water with different pollution degrees is discharged in a segmented mode and treated in a centralized mode, and the purification effect and the treatment efficiency of the culture tail water are improved.
Further, the bottom surface edge of the culture high-level pond inclines downwards towards the middle part of the bottom surface of the culture high-level pond, and particularly, the bottom surface of the culture high-level pond is conical. Therefore, a large amount of organic matters such as residual baits, excretions and algae at the bottom of the culture high-level pond are gathered towards the first pre-drainage pipe at the middle part, and the organic matters such as residual baits, excretions and algae gathered at the bottom of the culture high-level pond are drained into the sewage pre-treatment pond through the pre-drainage pipe.
Furthermore, an anti-escape mesh enclosure 1.1 is arranged on the bottom surface of the culture high-level pond, and the upper end of the first pre-drainage pipe and the upper end of the first main drainage pipe are both positioned in the anti-escape mesh enclosure. Therefore, aquatic products in the high-level pond can be prevented from escaping in the sewage discharge process.
Furthermore, a flow guide channel 2.1 is arranged in the sewage disposal pretreatment tank, a plurality of partition plates 2.4 which divide the flow guide channel into zigzag flow channels are arranged in the flow guide channel, and the upper end of the second pre-sewage discharge pipe is positioned in the flow guide channel. Therefore, the water flow speed can be delayed through the zigzag flow channel, and the muddy pool water in the sewage treatment pool is avoided.
The second embodiment is as follows: the specific structure of this embodiment refers to the first embodiment, and the differences are as follows:
as shown in figures 3, 4 and 5, the tail water sectional type discharge device for the seawater pond culture further comprises a pre-pollution discharge auxiliary device 7. The auxiliary device for pre-sewage discharge comprises a spiral track 7.1 extending from the middle part of the bottom surface of the culture high-level pond to the edge of the bottom surface of the culture high-level pond, a sliding block 7.2 sliding along a spiral pipeline, a support 7.3 arranged on the sliding block, a shaft rod 7.4 arranged on the support in a rotating way, a supporting roller 7.5 arranged on the shaft rod, a rolling brush cylinder 7.6 coaxially arranged on the shaft rod and a waterproof motor 7.7 arranged on the support and used for driving the shaft rod to rotate. The output shaft of the waterproof motor is parallel to the shaft rod, and the output shaft of the waterproof motor is connected with the shaft rod through a gear transmission mechanism 7.8.
And limit stops are arranged at the inner end and the outer end of the spiral track. The helical track is composed of helical pipes. The spiral pipeline is laid on the bottom surface of the culture high-level pond. The slider can rotate around the spiral pipe. The axis of axostylus axostyle is mutually perpendicular with the slip direction of slider, and the supporting roller supports on the bottom surface of breeding the high-order pond, and in this embodiment, the supporting roller is two, and two supporting roller symmetric distribution are in the both sides of slider. The number of the rolling brush cylinders is two, and the two rolling brush cylinders are symmetrically distributed on two sides of the sliding block. The rolling brush cylinder comprises a plurality of brush hairs 7.61 which are propped against the bottom surface of the culture high-level pond.
The auxiliary device for pre-sewage disposal of the embodiment drives the support roller and the rolling brush cylinder to rotate together through the shaft rod when the pre-sewage disposal valve is opened, so as to drive the sliding block to slide along the spiral pipeline, meanwhile, the rolling brush cylinder stirs a large amount of residual baits, excreta, algae and other organic matters deposited on the bottom surface of the culture high-level pond, thus after the pre-sewage disposal valve is opened, the device can ensure that a large amount of residual baits, excreta, algae and other organic matters accumulated at the bottom of the culture high-level pond can be discharged into the sewage disposal pre-treatment pond through the pre-sewage disposal pipe, and avoids that a large amount of residual baits, excreta, algae and other organic matters accumulated at the bottom of the culture high-level pond can not be discharged into the sewage disposal pond through the pre-sewage disposal pipe in the opening process of the pre-sewage disposal valve so as to ensure thorough sewage disposal of the culture high-level pond, meanwhile, after the main sewage discharge valve is opened, organic matters such as residual bait, excrement, algae and the like which are not discharged from the bottom of the pond through the pre-sewage discharge pipe are discharged into the culture tail water treatment pond through the main sewage discharge pipe, so that the purification effect of the culture tail water is influenced, and the treatment efficiency of the culture tail water is reduced.
Furthermore, the bottom surface of the high-level pond is provided with a submersible pump, a water outlet of the submersible pump is connected with one end of the spiral pipeline, the other end of the spiral pipeline is closed, the outer side surface of the spiral pipeline is provided with a plurality of turbulence holes communicated with the inner side surface of the spiral pipeline, and the turbulence holes are distributed at equal intervals in the length direction of the spiral pipeline. After the pre-sewage valve is opened, the submersible pump works to press water into the spiral pipeline, so that water is sprayed out from the turbulence holes, and a large amount of residual baits, excretions, algae and other organic matters deposited on the bottom surface of the culture high-level pond are stirred.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (8)
1. A seawater pond culture tail water sectional type discharging device is characterized by comprising a culture elevated tank, a sewage discharge pretreatment tank, a culture tail water treatment tank, a sectional type sewage discharge device and a pre-sewage discharge auxiliary device, wherein the water level of the culture elevated tank is higher than that of the sewage discharge pretreatment tank, the sewage discharge pretreatment tank is communicated with the culture tail water treatment tank through a water lifting pipe, a water pump is arranged on the water lifting pipe,
the sectional type sewage draining device comprises a pre-sewage draining pipe, a main sewage draining pipe, a pre-sewage draining valve arranged on the pre-sewage draining pipe and a main sewage draining valve arranged on the main sewage draining pipe, wherein the pre-sewage draining pipe comprises a first pre-sewage draining pipe arranged in the middle of the bottom surface of the culture high-level pond, a second pre-sewage draining pipe arranged on the bottom surface of the sewage draining pre-pond and a first connecting pipe connecting the lower end of the first pre-sewage draining pipe and the lower end of the second pre-sewage draining pipe, and the upper end of the first pre-sewage draining pipe is flush with or lower than the bottom surface of the culture high-level pond where the first pre-sewage draining pipe is located; the main sewage discharge pipe comprises a first main sewage discharge pipe arranged in the middle of the bottom surface of the culture high-level pond, a second main sewage discharge pipe arranged on the bottom surface of the culture tail water treatment pond and a second connecting pipe for connecting the lower end of the first main sewage discharge pipe with the lower end of the second main sewage discharge pipe, and the upper end of the first main sewage discharge pipe is higher than the upper end of the first pre-sewage discharge pipe;
the pre-sewage-discharging auxiliary device comprises a spiral track, a sliding block, a support, a shaft rod, a supporting roller, a rolling brush barrel and a waterproof motor, wherein the spiral track extends from the middle of the bottom surface of the culture high-level pond to the edge of the bottom surface of the culture high-level pond, the sliding block slides along a spiral pipeline, the support is arranged on the sliding block, the shaft rod is rotatably arranged on the support, the supporting roller is arranged on the shaft rod coaxially, the waterproof motor is arranged on the support and is used for driving the shaft rod to rotate, the spiral track is composed of spiral pipelines, the spiral pipeline is paved on the bottom surface of the culture high-level pond, the sliding block can rotate around the spiral pipeline, the axis of the shaft rod is perpendicular to the sliding direction of the sliding block, the supporting roller is supported on the bottom surface of the culture high-.
2. The sectional type discharging device for the tail water of seawater pond culture as claimed in claim 1, wherein the number of the supporting rollers is two, two supporting rollers are symmetrically distributed on both sides of the sliding block, the number of the rolling brush cylinders is also two, and two rolling brush cylinders are symmetrically distributed on both sides of the sliding block.
3. The sectional type discharging device for the tail water of the seawater pond culture as claimed in claim 1, wherein the output shaft of the waterproof motor is parallel to the shaft rod, and the output shaft of the waterproof motor is connected with the shaft rod through a gear transmission mechanism.
4. The sectional type discharging device for the tail water of seawater pond culture as claimed in claim 1, 2 or 3, wherein the height difference between the upper end of the first main discharging pipe and the upper end of the first pre-discharging pipe is 30-50 cm.
5. The sectional type discharging device for the tail water of the seawater pond culture as claimed in claim 1, 2 or 3, wherein the edge of the bottom surface of the culture elevated tank is inclined downwards towards the middle of the bottom surface of the culture elevated tank.
6. The sectional type tail water discharge device for seawater pond culture as claimed in claim 1, 2 or 3, wherein an anti-escape mesh enclosure is further arranged on the bottom surface of the culture high-level pond, and the upper end of the first pre-drainage pipe and the upper end of the first main drainage pipe are both positioned in the anti-escape mesh enclosure.
7. The sectional type discharging device for the tail water of the seawater pond culture as claimed in claim 1, 2 or 3, wherein a flow guide channel is arranged in the sewage pretreatment pond, a plurality of partition plates for dividing the flow guide channel into zigzag flow channels are arranged in the flow guide channel, and the upper end of the second pre-sewage discharge pipe is positioned in the flow guide channel.
8. The sectional type discharging device for the tail water of the seawater pond culture as claimed in claim 1, 2 or 3, wherein a plurality of aeration pipes are arranged on the bottom surface of the sewage pretreatment tank, and a plurality of aeration heads are arranged on the aeration pipes.
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| CN201910074403.3A CN109717123B (en) | 2019-01-25 | 2019-01-25 | Sectional type discharging device for seawater pond culture tail water |
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| CN201910074403.3A CN109717123B (en) | 2019-01-25 | 2019-01-25 | Sectional type discharging device for seawater pond culture tail water |
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| CN1181730C (en) * | 2001-12-19 | 2004-12-29 | 鱼博士生物科技股份有限公司 | Indoor automatic breeding system |
| FR3033229B1 (en) * | 2015-03-06 | 2017-09-01 | Abyssnaut | SYSTEM FOR POLISHING WALLS OF AQUATIC BASINS |
| CN105174347A (en) * | 2015-09-14 | 2015-12-23 | 浙江省海洋水产研究所 | Aeration pipe and aerator combined rotary aeration device |
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