CN215414873U - Automatic aeration detection device for fecal sewage in oxidation pond - Google Patents
Automatic aeration detection device for fecal sewage in oxidation pond Download PDFInfo
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- CN215414873U CN215414873U CN202122122573.XU CN202122122573U CN215414873U CN 215414873 U CN215414873 U CN 215414873U CN 202122122573 U CN202122122573 U CN 202122122573U CN 215414873 U CN215414873 U CN 215414873U
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- 238000005273 aeration Methods 0.000 title claims abstract description 374
- 238000001514 detection method Methods 0.000 title claims abstract description 250
- 230000003647 oxidation Effects 0.000 title claims abstract description 48
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 48
- 230000002550 fecal effect Effects 0.000 title claims abstract description 45
- 239000010865 sewage Substances 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 191
- 210000003608 fece Anatomy 0.000 claims description 76
- 239000007788 liquid Substances 0.000 claims description 69
- 238000012544 monitoring process Methods 0.000 claims description 46
- 238000003756 stirring Methods 0.000 claims description 39
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- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 20
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- 244000144972 livestock Species 0.000 description 9
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- 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
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Abstract
The utility model discloses an aeration automatic detection device for fecal sewage of an oxidation pond, which comprises a detection pond body arranged on the wall of an aeration pond and a drainage tube extending into the aeration pond, wherein a water level control assembly is also arranged at the detection pond body and used for preventing the fecal sewage in the aeration pond from continuously flowing into the detection pond body when the water level in the detection pond body reaches a set value, a second aeration head is also arranged in the detection pond body, an inclined flow bearing ring is also encircled on the outer side wall of the upper end of the detection pond body, the outer side wall of the inclined flow bearing ring is higher than the outer side wall of the detection pond body, the whole bottom of the inclined flow bearing ring is in an inclined state, a flow receiving pipe is also connected at the lowest position of the bottom of the inclined flow bearing ring, and a pressure detection assembly is arranged at the lower end of the flow receiving pipe. The scheme can automatically detect the aeration condition in the aeration tank, improve the accuracy and consistency of aeration terminal point judgment, and further ensure the aeration treatment effect of the fecal sewage in the oxidation pond.
Description
Technical Field
The utility model relates to the technical field of livestock and poultry breeding liquid dung treatment, in particular to an aeration automatic detection device for liquid dung in an oxidation pond.
Background
In recent years, environmental pressure caused by the improvement of the scale degree of livestock and poultry farms is remarkable, a large amount of fecal sewage is relatively concentrated, the way of the fecal sewage becomes a first difficult problem which obstructs the normal operation of the livestock and poultry farms and the green transformation development of the livestock and poultry industry at the present stage, and in some areas, pollution caused by the livestock and poultry industry becomes a local main pollution source. Therefore, the treatment of the livestock and poultry breeding liquid dung draws high attention of relevant departments and a series of control measures are taken. Due to the influence of actual problems of capital investment, maintenance management, treatment efficiency and the like, most of the manure of domestic large-scale livestock and poultry farms mostly adopt a method of 'anaerobic treatment + multi-stage oxidation pond' or 'solid-liquid separation + multi-stage oxidation pond' at present and are finally returned to the field for utilization. The oxidation pond as a fecal sewage treatment system has the advantages of low capital investment and operation cost, simple maintenance and repair, convenient operation, capability of effectively removing organic matters in the fecal sewage, no need of sludge treatment and the like, and is more and more emphasized by people in recent years, and the purification process is similar to the self-purification process of natural water. But in the returning mode, a large amount of farmland is needed to absorb the liquid dung, and at least 6.67hm is needed in ten thousand pig farms2Land absorption is limited by the condition, and the adaptability of returning the liquid dung to the field is not strong; the outlet of liquid dung needs to be considered in rainy season and non-fertilizer season; improper use or continuous excess use can also result in the deposition of nitrates, phosphorus and heavy metals on the substrateSurface water and ground water constitute pollution. Compared with a soil planting mode, the water planting mode is superior to soil planting in safety, vegetable taste and quality yield, and can also be used for planting all the year round by utilizing a greenhouse environment, the continuity of nutrient solution demand is strong, and the effects of water and fertilizer saving and green environmental protection can be achieved by utilizing the nitrogen fixation effect of plants.
The applicant finds that in the process of water culture by using the dung of the oxidation pond, in order to enable the dung of the oxidation pond to be used as a water culture nutrient solution, the dung of the oxidation pond needs to be filtered, and the content of ammonia nitrogen in the dung needs to be reduced to a proper concentration, so that the dilution multiple of the dung of the oxidation pond can be reduced as much as possible, the quantity of the dung of the oxidation pond is increased, the supply of nutrients, trace elements and phytohormones required by the growth of water-cultured vegetables can be better met, and otherwise, the dung of the oxidation pond with higher concentration of ammonia nitrogen can cause the phenomena of seedling burning and seedling death of the water-cultured vegetables. The method for reducing the concentration of ammonia nitrogen in liquid (chemical precipitation method, break point chlorination method, biological method, blow-off method and the like) is comprehensively considered, the ammonia nitrogen in the excrement is removed by adopting the blow-off method commonly adopted by the industry, namely inert gas (such as air) and the wastewater to be treated are simultaneously introduced into blow-off equipment, so that gas-liquid two phases are fully contacted in a reaction area, and in the process, gas (ammonia gas) and volatile solute (ammonia nitrogen) dissolved in water enter a liquid retention membrane through a liquid phase main body and then are transferred to a gas phase through a gas-liquid contact interface, so that the aim of reducing the concentration of the ammonia nitrogen is fulfilled.
Researches show that factors such as space-time difference, colony house type, culture scale, manure cleaning mode, manure treatment process and the like can influence the change of ammonia nitrogen content in manure to different degrees, so that how to determine the manure water of the oxidation pond with different ammonia nitrogen contents and how to automatically check whether the aeration degree of the manure water of the oxidation pond reaches the standard at the aeration end point in the aeration treatment process, so that the manure water with the aeration degree meeting the requirements enters the steps of dilution and the like in the next step and finally serves as water culture nutrient solution to achieve the purpose of resource utilization, and the method has key guiding significance for the recycling of the manure water of the oxidation pond; in the process, factors such as the aeration characteristics, the foam change characteristics, the foam physical and chemical properties and the like of the oxidation pond liquid dung in the aeration process are comprehensively considered, so that the aeration and aeration inspection process is more consistent with the actual condition and is more automatic, fine and accurate. Therefore, how to design an automatic aeration detection device for the fecal sewage of the oxidation pond, which can automatically detect the aeration state in the aeration pond, ensure the accuracy and consistency of the judgment of the aeration end point and further ensure the fecal sewage treatment effect of the oxidation pond, also becomes a technical problem which needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the technical problems to be solved by the utility model are as follows: how to provide an automatic aeration detection device for the fecal sewage of the oxidation pond, which can automatically detect the aeration state in the aeration pond, ensure the accuracy and consistency of the judgment of the aeration end point and further ensure the fecal sewage treatment effect of the oxidation pond.
In order to solve the technical problems, the utility model adopts the following technical scheme:
an aeration automatic detection device for fecal sewage of an oxidation pond comprises a detection pond body arranged on the wall of an aeration pond, and a drainage tube extending into the aeration pond and used for leading the fecal sewage in the aeration pond into the detection pond body, a water level control component is also arranged at the detection tank body and is used for preventing the liquid dung in the aeration tank from continuously flowing into the detection tank body when the water level in the detection tank body reaches a set value, a second aeration head is also arranged in the detection tank body, an inclined flow bearing ring channel is also encircled on the outer side wall of the upper end of the detection tank body, the outer side wall of the inclined flow bearing loop is higher than the outer side wall of the detection tank body, the bottom of the inclined flow bearing loop is integrally in an inclined state, and the lowest part of the bottom of the inclined flow bearing ring is also connected with a flow receiving pipe, and the lower end of the flow receiving pipe is provided with a pressure detection assembly.
The working principle of the utility model is as follows: because the ammonia nitrogen concentration of the manure water in the oxidation pond is not invariable and can change along with different seasons and temperatures or change along with different livestock and poultry breeding types, the automatic determination of the completion of aeration is realized, so that the discharging of the manure water to the next structure is critical, and the automatic aeration detection device is designed according to the scheme.
When the aeration detection is carried out, the liquid dung in the aeration tank enters the detection tank body through the drainage tube, the water level control assembly in the detection tank body stops the liquid dung from continuously flowing into the detection tank body when the water level in the detection tank body reaches a set value, at the moment, the second aeration head in the detection tank body carries out aeration, if the water body aeration in the aeration tank body does not reach the standard (because the ammonia nitrogen concentration in the liquid dung in the oxidation pond is higher, the formed foam is not easy to break during the initial aeration, the maintenance time of the formed foam is shortened along with the aeration, and the final aeration standard reaching phenomenon is that the foam is formed and broken), when the aeration detection is carried out in the detection tank body, the aerated foam accumulation is formed by the water body in the detection tank body under the condition that the aeration quantity of the water body is relatively larger than that of the aeration tank body, the aerated foam accumulation is formed by the aeration bubbles exceeding the height difference between the set height of the water level in the detection tank body and the upper end surface of the tank body, the inclined flow-bearing ring is in an inclined state as a whole, the whole structure is in a structural style that the left end is low and the right end is high, at the moment, foam overflowing into the inclined flow bearing loop flows down the wall of the inclined flow bearing loop, most of the foam is changed into liquid in the flow-down process according to the foam characteristics, and then the liquid is collected at the lowest part of the bottom of the inclined flow bearing loop and flows out from the flow receiving pipe, at the moment, the pressure detection assembly at the lower end of the flow receiving pipe detects the change of pressure, so that the fact that the aeration time in the aeration tank is insufficient is proved, and aeration needs to be continued; on the contrary, if the water body aeration in the aeration tank reaches the standard, the formed foam is broken when the water body in the detection tank is aerated, and the formed foam cannot overflow the detection tank and flow into the inclined flow bearing ring, so that the pressure detection assembly positioned at the lower end of the flow receiving pipe cannot detect the pressure change, the aeration in the aeration tank is considered to be finished, and the feces water after the aeration is finished can be further conveyed into the mixing tank through the aeration water outlet pipe to be treated in the next step.
To sum up, the automatic aeration detection device of this scheme is when examining the aeration condition in the aeration tank, direct pressure variation through the pressure measurement subassembly just can judge the aeration condition in the aeration tank, when specifically examining, set for an aeration time value according to empirical data earlier, after aeration time reaches this settlement aeration time value in the aeration tank, the drainage tube begins to carry the liquid dung to the internal transport of detection tank in order to carry out the automated inspection of liquid dung aeration condition, if the pressure measurement subassembly detects pressure variation then represent that the aeration is not accomplished this moment, then let the liquid dung in the aeration tank continue to aerate for a period of time and detect once more, so reciprocal, until pressure measurement subassembly department does not detect the change of pressure, represent that the liquid dung in the aeration tank has reached the aeration terminal point this moment. Therefore, the automatic aeration detection device judges the aeration condition in the aeration tank through the pressure change of the pressure detection component, not only realizes the automatic detection of the aeration state in the aeration tank, but also improves the accuracy and consistency of the judgment of the aeration end point, and further ensures the final treatment effect of the fecal sewage of the oxidation pond.
Preferably, a detection water inlet is formed in the bottom of the detection tank body and communicated with the drainage tube;
the water level control assembly comprises a fixed positioning rod and a water flow valve plate which is sleeved on the fixed positioning rod in a sliding manner, the upper end of the fixed positioning rod is fixedly connected with the bottom end of the detection tank body, the fixed positioning rod is positioned in the drainage tube, the lower end of the fixed positioning rod is also provided with a limiting part, the water flow valve plate can slide to a position abutting against the limiting part along the fixed positioning rod under the action of gravity, a linkage rod which vertically extends upwards through the detection water inlet and extends into the detection tank body is also arranged on the water flow valve plate, a buoy is arranged at the upper end of the linkage rod, a bulge is also arranged on the water flow valve plate and can be abutted against the detection water inlet to seal the detection water inlet, the buoy can drive the water flow valve block to slide upwards to the position where the bulge part is abutted against the detection water inlet along the fixed positioning rod through the linkage rod under the action of buoyancy.
Thus, when the aeration condition in the aeration tank needs to be detected, the electric valve on the drainage tube is opened, the detection water inlet starts to feed water, when the water inlet of the detection tank body does not reach the floating height, the water flow valve block is statically arranged at the position of the limit part at the bottom of the fixed positioning rod due to the self gravity action, the detection water inlet is always in an open state at the moment, the water body in the aeration tank flows into the detection tank body through the drainage tube, when the water level of the detection tank body reaches the floating height, the hollow float gradually rises due to the buoyancy, the linkage rod at the lower end of the float drives the water flow valve block to rise, when the bulge part of the middle bulge part of the water flow valve block rises to the height gradually sealed with the detection water inlet, the water inlet flow of the detection water inlet is gradually reduced, when the float reaches the preset height, the bulge part of the middle bulge part of the water flow valve block completely blocks the detection water inlet at the moment, so that the detection tank body stops feeding water, therefore, the automatic control of the water level in the detection tank body is realized.
Preferably, fixed position pole includes four pillars that distribute along circumference, four the equal fixed connection in upper end of pillar is in the bottom surface of detection cell body, four the lower extreme of pillar is to the inboard extension and crossing formation spacing portion on the rivers valve block with the equal outside protrusion in position that the pillar corresponds is equipped with the branch head, every cylindrical through-hole has all been seted up on the branch head, the pillar slides respectively and passes corresponding position cylindrical through-hole on the branch head, so that the rivers valve block can be followed pillar vertical removal.
Like this, the rivers valve block is at the in-process along fixed position pole vertical migration, because four spinal branch posts of fixed position pole are respectively to pass the cylindrical through-hole on the corresponding position branch, the event fixed position pole passes the cylindrical through-hole of rivers valve block and can make the rivers valve block, the vertical position of gangbar and cursory does not take place the slope at whole removal in-process, four spinal branch posts can lead the process of rivers valve block vertical migration, simultaneously when the intaking that detects the cell body does not reach cursory height, the spacing department of fixed position pole bottom is arranged in because the effect of gravity is quiet to the rivers valve block, fixed position pole has played direction and spacing effect to the removal of rivers valve block from this.
Preferably, the pressure detection assembly includes a flow receiving bottle positioned below the flow receiving pipe so that the liquid discharged from the flow receiving pipe can flow into the flow receiving bottle, the flow receiving bottle is placed on a pressure sensor having a pressure sensitive element, and the pressure sensor is fixedly connected to the outer side wall of the aeration tank through a sensor support column.
Therefore, when the aeration in the aeration tank does not reach the standard, the foam formed by the aeration is changed into liquid and is discharged from the flow receiving pipe, the liquid further flows into the flow receiving bottle, the gravity of the whole flow receiving bottle is changed at the moment, and then the pressure sensor with the pressure sensitive element detects the change condition of the gravity of the flow receiving bottle, and the aeration in the aeration tank is considered to be not finished at the moment; when the aeration in the aeration tank reaches the standard, no liquid flows out of the flow receiving pipe, and the gravity of the flow receiving bottle cannot change, so that the pressure sensor cannot detect the change condition of the gravity of the flow receiving bottle, and the aeration in the aeration tank is considered to reach the standard at the moment.
Preferably, the second aeration head is located at the center of the bottom of the detection tank body, and the aeration rate of the single second aeration head is 1.2-1.3 times of the aeration rate of the single first aeration head in the aeration tank.
Like this, the second aeration head is located the center department that detects the cell body bottom, improve the homogeneity of the interior liquid dung aeration of detection cell body, the aeration rate of single second aeration head is 1.2-1.3 times of single first aeration head aeration rate in the aeration tank simultaneously, utilize the high aeration rate of second aeration head to make when the liquid dung in the detection cell body does not reach standard, the bubble of aeration in the detection cell body can form the foam fast and gather to surpass the height difference between the water level settlement height in the detection cell body and the cell body up end and spill over to the slope and hold the circulation way in, improve the efficiency and the precision that detect from this.
Preferably, the set value of the water level in the detection tank body is the water level when the distance from the water level in the detection tank body to the upper end face of the detection tank body is 1.5-2.5 cm.
Therefore, the set value of the water level in the detection tank is the water level when the distance from the water level in the detection tank to the upper end face of the detection tank is 1.5-2.5cm, the distance is set according to the practical experiment experience of an applicant, so that when the liquid dung in the detection tank does not reach the standard, the aerated bubbles in the detection tank can exceed the height difference between the set height of the water level in the detection tank and the upper end face of the detection tank and overflow to the inclined flow-bearing ring channel, and when the liquid dung in the detection tank reaches the standard, the aerated bubbles cannot overflow to the inclined flow-bearing ring channel, thereby indirectly reflecting whether the aeration degree in the aeration tank reaches the standard or not, and whether aeration needs to be continued or not, and further improving the detection precision and efficiency.
Preferably, a detection tank vent is further formed in the bottom of the detection tank body, and a detection tank vent is connected to the detection tank vent.
Thus, by arranging the detection tank vent and the detection tank vent, the feces water after the detection in the detection tank body can be discharged back to the aeration tank or other purposes and the like through the detection tank vent, so that the feces water of the oxidation pond in the detection tank can be emptied, and the preparation can be made for the next detection of the aeration condition.
Preferably, the outer side wall of the aeration tank is further provided with a monitoring assembly, the monitoring assembly comprises a monitoring tank and a monitoring water outlet pipe, the monitoring water outlet pipe extends into the aeration tank and is used for introducing liquid dung in the aeration tank into the monitoring tank, the monitoring water outlet pipe introduces the liquid dung into the monitoring tank after the aeration tank reaches an aeration end point, and the monitoring tank is used for monitoring the pH value of the liquid dung in the oxidation pond.
Like this, through set up the monitoring subassembly on the outer wall of aeration tank, wait to detect the cell body inspection and confirm that aeration tank oxidation pond liquid dung aeration is up to standard after, open the monitoring outlet pipe, draw forth partial liquid dung through the monitoring outlet pipe from the aeration tank and get into the monitoring pond, detect its pH value in order to confirm the required acidizing fluid of follow-up pH value (like phosphoric acid) quantity, if other needs still can detect the content of other physicochemical index according to concrete needs.
Preferably, the drainage tube is positioned at the lower part of the aeration tank, and the drainage tube is also provided with a first electric valve.
Like this, the drainage tube is located the lower part position of aeration tank, opens the first electrically operated valve on the drainage tube after, can utilize the water pressure of bottom position in the aeration tank to impress rivers in the drainage tube, whether the control fecal sewage that the first electrically operated valve that sets up on the drainage tube can be convenient enters into and detects in the detection cell body. The aeration detection is carried out for the first time after the aeration in the aeration tank is determined according to experience, when the aeration in the aeration tank reaches the time, the first electric valve on the drainage tube is opened, the liquid dung flows into the detection tank body from the drainage tube, the first electric valve is closed according to the water inlet time preset for the detection tank body or when the liquid dung does not need to be introduced into the detection tank body for detection, and the liquid dung does not flow into the detection tank body through the drainage tube any more, and the aeration detection for many times can be carried out in the technical scheme.
Preferably, a plurality of first stirring assemblies are uniformly distributed on the circumferential direction of the outer side wall of the aeration tank, each first stirring assembly comprises a first stirring shaft extending into the aeration tank, a first stirring paddle is further arranged on each first stirring shaft, and each first stirring paddle is positioned above a first aeration head in the aeration tank.
Therefore, a plurality of first stirring assemblies are uniformly distributed on the periphery of the lower part of the wall of the aeration tank, the axial directions of four first stirring shafts can be combined to form a rectangle, the first stirring paddles are vertically and fixedly connected with the corresponding first stirring shafts, and are also positioned above the first aeration head in the aeration tank, so that when the water inlet in the aeration tank reaches a certain depth, the aerator and the first stirring assemblies are started, the initial ammonia nitrogen content in the oxidation pond liquid dung is higher, a large amount of aggregated bubbles can be formed in the aeration tank by the air exposed by the first aeration head, the bubble maintaining time is slightly long at the initial aeration, the bubbles can be aggregated on the water surface, part of solid suspended matters or sludge and the like can be carried on the foam surface, if the bubbles are close to the wall of the aeration tank, the bubbles can be adhered to the wall of the aeration tank to cause difficult cleaning, the wall of the aeration tank is damaged, the service life of the aeration tank is shortened, the appearance is influenced, and the like; after opening first stirring subassembly, can make up because of the axial direction of a plurality of first stirring subassemblies's (mixing) shaft and form the rectangle, the stirring effect can make the water form the vortex in the pond, and this kind of bubble can use surface of water central authorities constantly to gather as the center, and unlikely contact aeration tank pool wall causes harmful effects. In addition, the water body eddy current still will prolong the dwell time of aeration bubble in the water to with more ammonia nitrogen with gaseous form from the transfer escape in the liquid dung, accelerate the reducing rate of ammonia nitrogen concentration, the water rotatory flow under the drive of first stirring subassembly in addition still can make everywhere ammonia nitrogen in the aeration tank blow off the degree even unanimous, be convenient for control blow off quality and confirm the reliability of aeration standard time.
Preferably, the drainage tube is fixed on the outer pond wall of aeration tank through first fixed clamp, it fixes on the outer pond wall of aeration tank through the fixed clamp of second to detect the cell body, the monitoring pond is fixed on the outer pond wall of aeration tank through the fixed clamp of third.
Like this, drainage tube, detection cell body and monitoring pond all fix on the outer pool wall of aeration tank through the fixed clamp that corresponds, guarantee the stability of whole aeration automatic checkout device during operation.
Compared with the prior art, the detection tank body designed ingeniously can control the water level of the water surface in the detection tank body through the drainage tube, the water level control assembly, the second aeration head, the inclined flow-bearing loop, the flow-receiving tube, the flow-receiving bottle, the pressure sensor containing the pressure-sensitive element and the like, so that foam formed by aeration in the detection tank body cannot overflow into the inclined flow-bearing loop and flow into the flow-receiving bottle to be detected by the pressure sensor under the condition that the aeration in the aeration tank reaches the standard; if the aeration degree in the aeration tank is insufficient, the foam formed by the liquid dung in the detection tank under higher aeration quantity overflows to the inclined flow-bearing loop, and then the foam is converged to the flow receiving bottle and is detected by the pressure sensor, so that the aeration of the aeration tank is still insufficient, and the aeration needs to be continued. The automatic aeration detection device has the advantages that the phenomenon needing manual observation is converted into a gravity signal by the design, the automation degree and the accuracy are higher, the sensitivity is stronger, the human error can be reduced, and the manual operation is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an aeration tank with an automatic aeration detection device for lagoon excrement water of the utility model;
FIG. 2 is a schematic view of a partial structure of an automatic aeration detection device for fecal sewage of an oxidation pond, which is arranged on an aeration tank;
FIG. 3 is a cross-sectional view of the automatic aeration detection device for the fecal sewage of the oxidation pond of the utility model;
FIG. 4 is a schematic structural diagram of the joint of a water flow valve plate, a linkage rod and a float in the automatic aeration detection device for the fecal water of the oxidation pond.
Description of reference numerals: aeration tank 1, first aeration head 2, automatic aeration detection device 3, drainage tube 301, first electric valve 302, first fixed clamp 303, detection cell body 304, second fixed clamp 305, slope current-carrying loop 306, flow receiving pipe 307, flow receiving bottle 308, pressure sensor 309, sensor support column 310, monitoring outlet pipe 311, monitoring pool 312, third fixed clamp 313, fixed position pole 314, water flow valve plate 315, gangbar 316, float 317, second aeration head 318, detection pool aeration pipe 319, blow-down pipe 320, first stirring subassembly 4, first (mixing) shaft 401, first stirring rake 402, aeration tank water inlet 5, aeration tank outlet pipe 6.
Detailed Description
The utility model will be further explained with reference to the drawings and the embodiments.
As shown in the attached drawing 1, when the automatic aeration detection device of the present embodiment is used, the automatic aeration detection device 3 is integrally installed at the lower position of the outer side wall of the aeration tank 1, the first aeration head 2 is further arranged in the aeration tank 1, the first aeration head 2 is used for carrying out aeration treatment on the fecal sewage in the aeration tank 1, an aeration tank water inlet 5 is further formed in the middle position of the bottom of the aeration tank 1, so as to introduce the fecal sewage of the oxidation pond requiring aeration treatment into the aeration tank 1, an aeration tank water outlet pipe 6 is further arranged on the aeration tank 1, so as to output the fecal sewage after aeration treatment to enter the next step, and the automatic aeration detection device 3 is used for detecting the aeration condition of the fecal sewage after aeration treatment.
Referring to fig. 2 and fig. 3, the automatic aeration detection device of the present embodiment comprises a detection tank body 304 mounted on the wall of an aeration tank 1, and a drainage tube 301 extending into the aeration tank 1 for introducing the fecal sewage in the aeration tank 1 into the detection tank body 304, a water level control component is also arranged at the detection tank body 304 and is used for preventing the liquid dung in the aeration tank 1 from continuously flowing into the detection tank body 304 when the water level in the detection tank body 304 reaches a set value, a second aeration head 318 is arranged in the detection tank body 304, an inclined flow bearing ring 306 is encircled on the outer side wall of the upper end of the detection tank body 304, the outer side wall of the inclined flow bearing ring 306 is higher than the outer side wall of the detection tank body 304, the whole bottom of the inclined flow bearing ring 306 is in an inclined state, and the lowest position of the bottom of the inclined flow bearing ring channel 306 is also connected with a flow receiving pipe 307, and the lower end of the flow receiving pipe 307 is provided with a pressure detection assembly.
The working principle of the utility model is as follows: because the ammonia nitrogen concentration of the manure water in the oxidation pond is not invariable and can change along with different seasons and temperatures or change along with different livestock and poultry breeding types, the automatic determination of the completion of the aeration is critical to discharge the manure water to the next structure, and therefore the automatic aeration detection device 3 is designed.
During aeration detection, liquid dung in the aeration tank 1 enters the detection tank body 304 through the drainage tube 301, when the water level in the detection tank body 304 reaches a set value, the liquid dung is prevented from continuously flowing in by the water level control assembly in the detection tank body 304, at the moment, aeration is carried out by the second aeration head 318 in the detection tank body 304, if aeration of the water body in the aeration tank 1 does not reach the standard (because the ammonia nitrogen concentration in the liquid dung in the oxidation pond is higher, foam formed during initial aeration is not easy to break, the maintenance time of the formed foam is shortened along with aeration, and the final aeration reaches the standard, namely, the foam is formed and broken), when aeration detection is carried out in the detection tank body 304, the aerated foam formed and accumulated in the detection tank body 304 is larger than the aeration rate of the aeration tank 1, and overflows to the inclined flow-bearing ring channel 306 beyond the height difference between the set height of the water level in the detection tank body 304 and the upper end face of the tank body, because the inclined flow bearing ring 306 is in an inclined state and has a structural style that the left end is low and the right end is high, foam overflowing into the inclined flow bearing ring 306 flows down the wall of the inclined flow bearing ring 306, most of the foam is changed into liquid in the flow-down process according to the foam characteristics, so that the foam is collected at the lowest position of the bottom of the inclined flow bearing ring 306 and flows out from the flow connection pipe 307, and the pressure detection component positioned at the lower end of the flow connection pipe 307 detects the change of pressure, so that the shortage of aeration time in the aeration tank 1 is proved, and aeration needs to be continued; on the contrary, if the water body aeration in the aeration tank 1 reaches the standard, the formed foam is broken when the water body is aerated in the detection tank, and the formed foam does not overflow the detection tank and flows into the inclined flow-bearing ring 306, so that the pressure detection component positioned at the lower end of the flow connection pipe 307 can not detect the pressure change, the aeration in the aeration tank 1 is considered to be finished, and the feces water after the aeration is finished can be further conveyed to the next structure for treatment through the aeration water outlet pipe 6.
To sum up, the automatic aeration detection device 3 of this scheme is when examining the aeration condition in the aeration tank 1, the aeration condition in the aeration tank 1 just can be judged directly through the pressure change of pressure measurement subassembly, when specifically examining, an aeration time value is set for according to empirical data earlier, after aeration time reaches this set aeration time value in the aeration tank 1, drainage tube 301 begins to carry the liquid dung to detecting cell body 304 in order to carry out the automated inspection of liquid dung aeration condition, if pressure measurement subassembly detects pressure change then represent that the aeration is not accomplished this moment, then let the liquid dung in the aeration tank 1 continue to aerate for a period of time and detect once more, so reciprocal, until pressure measurement subassembly department does not detect the change of pressure, represent that the liquid dung in the aeration tank 1 has reached the aeration terminal point this moment. Therefore, the automatic aeration detection device 3 judges the aeration condition in the aeration tank 1 through the pressure change of the pressure detection component, not only realizes the automatic detection of the aeration state in the aeration tank, but also improves the accuracy and consistency of the judgment of the aeration end point, and further ensures the final treatment effect of the fecal sewage of the oxidation pond.
In this embodiment, a detection water inlet is formed at the bottom of the detection tank body 304, and the detection water inlet is communicated with the drainage tube 301;
as shown in fig. 3 and fig. 4, the water level control assembly includes a fixing and positioning rod 314 and a water flow valve plate 315 slidably sleeved on the fixing and positioning rod 314, the upper end of the fixing and positioning rod 314 is fixedly connected to the bottom end of the detection tank body 304, and the fixing and positioning rod 314 is located in the drainage tube 301, the lower end of the fixed positioning rod 314 is also provided with a limiting part, the water flow valve plate 315 can slide to the position abutting against the limiting part along the fixed positioning rod 314 under the action of gravity, a linkage rod 316 which vertically extends upwards through the detection water inlet and extends into the detection tank body 304 is also arranged on the water flow valve plate 315, the upper end of the linkage rod 316 is provided with a float 317, the water flow valve plate 315 is further provided with a bulge, the bulge can abut against the detection water inlet and seal the detection water inlet, and the float 317 can drive the water flow valve plate 315 to slide upwards to the position where the bulge abuts against the detection water inlet along the fixed positioning rod 314 through the linkage rod 316 under the action of buoyancy.
Specifically, the water inlet is detected to be located at the left position of the second aeration head 318; because the water amount in the aeration tank 1 is not fixed, and different losses occur due to different external conditions or different fecal sewage concentrations during the aeration process, the water pressure at the position of the drainage tube 301 in the aeration tank 1 is not fixed, so that when the aeration tank is used specifically, the opening time of the first electric valve 302 of the drainage tube 301 is fixed (for example, 10 min), the water amount entering the detection tank body 304 within 10min after opening is different due to different water pressures at the drainage tube 301 in the aeration tank 1, which may cause the problem that the water amount in the detection tank body 304 overflows excessively or fails to reach the detection water level, therefore, a water level control assembly needs to be designed to ensure that the water level in the detection tank body 304 reaches the detection water level, so that the preset time range of the first electric valve 302 of the drainage tube 301 can be slightly longer, and the water level in the detection tank body 304 reaches and is stabilized at the preset water level by the water level control assembly within this time, the first electrically operated valve 302 of the drain tube 301 will automatically close after a preset time.
When the aeration condition in the aeration tank 1 needs to be detected, the first electric valve 302 on the drainage tube 301 is opened, the water inlet is detected to start to enter water, when the water entering the detection tank body 304 does not reach the height of the buoy 317, the water flow valve plate 315 is statically arranged at the position of the limit part at the bottom of the fixed positioning rod 314 under the action of self gravity, at the moment, the water inlet is always in an open state, the water in the aeration tank 1 flows into the detection tank body 304 through the drainage tube 301, when the water level of the detection tank body 304 reaches the height of the buoy 317, the hollow buoy 317 gradually rises due to buoyancy, the water flow valve plate 315 is driven to rise through the linkage rod 316 at the lower end of the buoy 317, when the bulge in the middle of the water flow valve plate 315 rises to the height gradually sealed with the detection water inlet, the water inlet flow rate of the detection water inlet is gradually reduced, when the buoy 317 reaches the preset height, the bulge in the middle of the water flow valve plate 315 completely seals the detection water inlet, so that water inlet of detection cell body 304 is stopped, thereby realizing automatic control of water level in detection cell body 304.
In this embodiment, fixed position pole 314 includes four pillars that distribute along circumference, the equal fixed connection in the bottom surface that detects cell body 304 in the upper end of four pillars, the lower extreme of four pillars is to the inboard extension and crossing spacing portion that forms, it is specific, this spacing portion wholly is "ten" style of calligraphy structure, the position that corresponds with the pillar all outwards the protrusion be equipped with a head on rivers valve block 315, cylindrical through-hole has all been seted up on every is overhead, the pillar slides respectively and passes the cylindrical through-hole on corresponding position branch head, so that rivers valve block 315 can follow pillar vertical removal.
Like this, rivers valve block 315 is at the in-process along fixed position pole 314 vertical migration, because four spinal branch posts of fixed position pole 314 pass the cylindrical through-hole on the corresponding position branch head respectively, so fixed position pole 314 passes the cylindrical through-hole of rivers valve block 315 can make rivers valve block 315, the vertical position of gangbar 316 and cursory 317 does not take place to incline at whole removal in-process, four spinal branch posts can lead the process of rivers valve block 315 vertical migration, simultaneously when the intaking that detects cell body 304 does not reach cursory 317 height, rivers valve block 315 because the effect of gravity rest in the spacing department of "ten" style of calligraphy of fixed position pole 314 bottom, fixed position pole 314 has played direction and spacing effect to the removal of rivers valve block 315 from this.
In the present embodiment, the pressure detection assembly includes a flow bottle 308 positioned below the flow pipe 307 so that the liquid discharged from the flow pipe 307 can flow into the flow bottle 308, the flow bottle 308 is placed on a pressure sensor 309 having a pressure sensitive element, and the pressure sensor 309 is fixedly connected to the outer sidewall of the aeration tank 1 by a sensor support pole 310.
Thus, when the aeration in the aeration tank 1 does not reach the standard and the foam formed by the aeration becomes liquid and is discharged from the flow connection pipe 307, the liquid further flows into the flow connection bottle 308, the gravity of the whole flow connection bottle 308 changes at the moment, and the pressure sensor 309 with the pressure sensitive element detects the change of the gravity of the flow connection bottle 308, and the aeration in the aeration tank 1 can be considered to be not completed at the moment; when the aeration in the aeration tank 1 reaches the standard, no liquid flows out from the flow connection pipe 307, the gravity of the flow connection bottle 308 cannot change, and the pressure sensor 309 cannot detect the change of the gravity of the flow connection bottle 308, so that the aeration in the aeration tank 1 is considered to reach the standard.
In this embodiment, second aeration head 318 is located at the center of the bottom of detection tank body 304, and the aeration rate of single second aeration head 318 is 1.2-1.3 times of the aeration rate of single first aeration head 2 in aeration tank 1. A detection tank aeration pipe 319 is also connected to the second aeration head to introduce gas for aeration into the second aeration head.
In this way, the second aeration head 318 is located at the center of the bottom of the detection tank body 304, so as to improve the uniformity of the aeration of the liquid dung in the detection tank body 304, and simultaneously, the aeration amount of the single second aeration head 318 is 1.2-1.3 times of the aeration amount of the single first aeration head 2 in the aeration tank 1, and by using the high aeration amount of the second aeration head 318, when the liquid dung in the detection tank body 304 does not reach the standard, the aerated bubbles in the detection tank body 304 can quickly form foam accumulation and overflow into the inclined flow-bearing ring 306 beyond the height difference between the water level set height in the detection tank body 304 and the upper end surface of the tank body, so as to improve the efficiency and the precision of detection.
In this embodiment, the set value of the water level in detection cell body 304 is the water level when the distance from the water level in detection cell body 304 to the upper end surface of detection cell body 304 is 1.5-2.5 cm.
Thus, the set value of the water level in detection tank body 304 is the water level when the distance from the water level in detection tank body 304 to the upper end face of detection tank body 304 is 1.5-2.5cm, and the distance is set according to the practical experiment experience of the applicant, so that when the fecal sewage in detection tank body 304 does not reach the standard, the aerated bubbles in detection tank body 304 can exceed the height difference between the set height of the water level in detection tank body 304 and the upper end face of the tank body and overflow into inclined flow-bearing loop 306, and when the fecal sewage in detection tank body 304 reaches the standard, the aerated bubbles cannot overflow into inclined flow-bearing loop 306, thereby indirectly reflecting whether the aeration degree in aeration tank 1 reaches the standard, whether aeration needs to be continued, and further improving the detection precision and efficiency.
In this embodiment, a detection tank vent is further provided at the bottom of the detection tank body 304, and a detection tank vent 320 is connected to the detection tank vent.
Thus, by providing the detection tank vent and the detection tank vent 320, the fecal sewage after the detection in the detection tank body 304 can be discharged back to the aeration tank 1 or other purposes through the detection tank vent 320, and the like, so as to empty the fecal sewage of the oxidation pond in the detection tank body 304, so as to prepare for the next detection of the aeration condition.
As shown in fig. 2, in this embodiment, a monitoring assembly is further disposed on an outer side wall of the aeration tank 1, the monitoring assembly includes a monitoring tank 312 and a monitoring water outlet pipe 311 extending into the aeration tank 1 and used for introducing the liquid dung in the aeration tank 1 into the monitoring tank 312, the monitoring water outlet pipe 311 introduces the liquid dung into the monitoring tank 312 after the aeration tank 1 reaches an aeration end point, and the monitoring tank 312 is used for monitoring a pH value of the liquid dung. Specifically, a second electric valve is disposed on the monitoring water outlet pipe 311, and the monitoring water outlet pipe 311 is also disposed at the lower position of the aeration tank 1, so as to utilize the water pressure of the monitoring water outlet pipe 311 at the water outlet in the aeration tank 1 to press the water into the monitoring water outlet pipe 311.
Like this, through set up the monitoring subassembly on the outer wall of aeration tank 1, treat that cell body 304 inspection confirms that the liquid dung aeration reaches standard in the aeration tank 1, open monitoring outlet pipe 311, draw forth partial liquid dung through monitoring outlet pipe 311 from aeration tank 1 and get into monitoring tank 312, detect its pH value in order to confirm the required acidizing fluid (such as phosphoric acid) quantity of follow-up pH value of transferring, if other needs still can detect the content of other physicochemical index according to specific need.
In this embodiment, the drainage pipe 301 is located at a lower position of the aeration tank 1, and a first electric valve 302 is further disposed on the drainage pipe 301.
Like this, drainage tube 301 is located the lower part position of aeration tank 1, opens the back of the first electric valve 302 on drainage tube 301, can utilize the water pressure of bottom position in aeration tank 1 to impress rivers in drainage tube 301, and whether the control fecal sewage that the first electric valve 302 that sets up on drainage tube 301 can be convenient enters into and detects in detecting cell body 304. The aeration time in the aeration tank can be determined according to experience and then the first aeration detection is carried out, when the aeration in the aeration tank reaches the time, the first electric valve 302 on the drainage tube 301 is opened, the liquid dung flows into the detection tank body 304 from the drainage tube 301, the first electric valve 302 is closed according to the water inlet time preset for the detection tank body 304 or when the liquid dung does not need to be introduced into the detection tank body 304 for detection, the liquid dung does not flow into the detection tank body 304 through the drainage tube 301 any more, and multiple times of aeration detection can be carried out in the technical scheme.
As shown in fig. 1, in this embodiment, a plurality of first stirring assemblies 4 are further uniformly distributed on the outer side wall of the aeration tank 1 in the circumferential direction, each first stirring assembly 4 includes a first stirring shaft 401 extending into the aeration tank 1, a first stirring paddle 402 is further disposed on the first stirring shaft 401, and the first stirring paddle 402 is located above the first aeration head 2 in the aeration tank 1.
Thus, a plurality of first stirring assemblies 4 are uniformly distributed on the periphery of the lower part of the wall of the aeration tank 1, the axial directions of four first stirring shafts 401 can be combined to form a rectangle, the first stirring paddles 402 are vertically and fixedly connected with the corresponding first stirring shafts 401, and the first stirring paddles 402 are positioned above the first aeration heads 2 in the aeration tank 1, so when the water inlet in the aeration tank reaches a certain depth, the aerator and the first stirring assemblies 4 are started, because the initial ammonia nitrogen content in the oxidation pond liquid manure is higher, a large amount of aggregated bubbles can be formed in the aeration tank by the air exposed by the first aeration heads 2, the bubble maintaining time is slightly long at the initial aeration, the bubbles can be aggregated on the water surface, because the foam surface can carry partial solid suspended matters or sludge and the like, if the wall of the aeration tank 1 is close to the scale and is not easy to clean, the wall of the aeration tank is damaged, and the service life of the aeration tank is shortened, influence the beauty and the like; after opening first stirring subassembly 4, can make up because of the axial direction of the (mixing) shaft of a plurality of first stirring subassemblies 4 and form the rectangle, the stirring effect can make the water form the vortex in the pond, and this kind of bubble can use surface of water central authorities constantly to gather as the center, and unlikely contact aeration tank pool wall causes harmful effects. In addition water vortex still will prolong the dwell time of aeration bubble in the water to with more ammonia nitrogen with gaseous form from the transfer loss in the liquid dung for the rate of reduction of ammonia nitrogen concentration, the water is rotatory flow under the drive of first stirring subassembly 4 in addition, still can make in the aeration tank 1 everywhere ammonia nitrogen blow off the degree even unanimous, be convenient for control blow off quality and confirm the reliability of aeration standard time.
In this embodiment, the drainage tube 301 is fixed to the outer wall of the aeration tank 1 by a first fixing clamp 303, the detection tank body 304 is fixed to the outer wall of the aeration tank 1 by a second fixing clamp 305, and the monitoring tank 312 is fixed to the outer wall of the aeration tank 1 by a third fixing clamp 313.
Like this, drainage tube 301, detection cell body 304 and monitoring pond 312 all fix on the outer pool wall of aeration tank 1 through the fixed clamp that corresponds, guarantee the stability of whole aeration automatic checkout device 3 during operation.
Compared with the prior art, the detection tank body 304 designed by the scheme skillfully can control the water level of the water surface in the detection tank body 304 through the drainage tube 301, the water level control assembly, the second aeration head 318, the inclined flow-bearing ring 306, the flow-receiving tube 307, the flow-receiving bottle 308, the pressure sensor 309 containing a pressure-sensitive element and the like, so that the foam formed by aeration in the detection tank body 304 cannot overflow into the inclined flow-bearing ring 306 and flow into the flow-receiving bottle 308 to be detected by the pressure sensor 309 under the condition that the aeration in the aeration tank 1 reaches the standard; if the aeration degree in the aeration tank 1 is insufficient, the foam formed by the liquid dung in the detection tank body 304 under the condition of higher aeration amount overflows to the inclined flow-bearing ring 306, and then flows into the flow-receiving bottle 308 to be detected by the pressure sensor 309, which proves that the aeration in the aeration tank 1 is still insufficient, and the aeration needs to be continued. The automatic aeration detection device 3 has the advantages that the phenomenon needing manual observation is converted into a gravity signal by the design, the automation degree and the accuracy are higher, the sensitivity is stronger, the human error can be reduced, and the manual operation is reduced.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.
Claims (10)
1. An aeration automatic detection device for fecal sewage of an oxidation pond is characterized by comprising a detection pond body arranged on the wall of an aeration pond and a drainage tube extending into the aeration pond and used for leading the fecal sewage in the aeration pond into the detection pond body, a water level control component is also arranged at the detection tank body and is used for preventing the liquid dung in the aeration tank from continuously flowing into the detection tank body when the water level in the detection tank body reaches a set value, a second aeration head is also arranged in the detection tank body, an inclined flow bearing ring channel is also encircled on the outer side wall of the upper end of the detection tank body, the outer side wall of the inclined flow bearing loop is higher than the outer side wall of the detection tank body, the bottom of the inclined flow bearing loop is integrally in an inclined state, and the lowest part of the bottom of the inclined flow bearing ring is also connected with a flow receiving pipe, and the lower end of the flow receiving pipe is provided with a pressure detection assembly.
2. An automatic aeration detection device for fecal sewage of an oxidation pond according to claim 1, wherein a detection water inlet is arranged at the bottom of the detection pond body, and the detection water inlet is communicated with the drainage tube;
the water level control assembly comprises a fixed positioning rod and a water flow valve plate which is sleeved on the fixed positioning rod in a sliding manner, the upper end of the fixed positioning rod is fixedly connected with the bottom end of the detection tank body, the fixed positioning rod is positioned in the drainage tube, the lower end of the fixed positioning rod is also provided with a limiting part, the water flow valve plate can slide to a position abutting against the limiting part along the fixed positioning rod under the action of gravity, the water flow valve plate is also provided with a bulge which can be abutted against the detection water inlet and seal the detection water inlet, the lug boss is also provided with a linkage rod which vertically extends upwards and extends through the detection water inlet and into the detection tank body, the upper end of the linkage rod is provided with a floater, and the floater can drive the water flow valve block to slide upwards along the fixed positioning rod to the position where the bulge part offsets with the detection water inlet under the action of buoyancy.
3. The automatic aeration detection device for fecal sewage of an oxidation pond according to claim 2, wherein the fixing rod comprises four support columns distributed along the circumferential direction, the upper ends of the four support columns are all fixedly connected to the bottom surface of the detection cell body, the lower ends of the four support columns extend inwards and intersect to form a limiting part, the positions on the water flow valve plate corresponding to the support columns are all provided with support heads protruding outwards, each support head is provided with a cylindrical through hole, and the support columns respectively slide through the cylindrical through holes on the support heads at the corresponding positions, so that the water flow valve plate can move vertically along the support columns.
4. An automatic aeration detection device for lagoon manure water according to claim 1, characterized in that the pressure detection assembly comprises a flow receiving bottle positioned below the flow receiving pipe so that the liquid discharged from the flow receiving pipe can flow into the flow receiving bottle, the flow receiving bottle is placed on a pressure sensor with a pressure sensitive element, and the pressure sensor is fixedly connected on the outer side wall of the aeration tank through a sensor support column.
5. The automatic aeration detection device for the fecal water of the oxidation pond according to the claim 1, wherein the second aeration head is located at the center of the bottom of the detection pond body, and the aeration rate of the single second aeration head is 1.2-1.3 times of the aeration rate of the single first aeration head in the aeration pond.
6. An automatic aeration detection device for fecal water of an oxidation pond according to claim 1 wherein the set value of the water level in the detection pond is the water level when the distance from the water level in the detection pond to the upper end surface of the detection pond is 1.5-2.5 cm.
7. The automatic aeration detection device for the fecal water of the oxidation pond according to claim 1, which is characterized in that a detection pond vent is further arranged at the bottom of the detection pond body, and a detection pond vent is connected at the detection pond vent.
8. The automatic aeration detection device for fecal sewage of an oxidation pond according to claim 1, wherein a monitoring component is further arranged on the outer side wall of the aeration tank, the monitoring component comprises a monitoring tank and a monitoring outlet pipe extending into the aeration tank and used for introducing the fecal sewage in the aeration tank into the monitoring tank, the monitoring outlet pipe introduces the fecal sewage into the monitoring tank after the aeration tank reaches the aeration end point, and the monitoring tank is used for monitoring the pH value of the fecal sewage.
9. The automatic aeration detection device for the fecal water of the oxidation pond according to the claim 1, wherein the drainage tube is located at the lower part of the aeration tank, and the drainage tube is further provided with a first electric valve.
10. The automatic aeration detection device for the fecal sewage of the oxidation pond according to the claim 1, wherein a plurality of first stirring assemblies are uniformly distributed on the circumference of the outer side wall of the aeration tank, the first stirring assemblies comprise first stirring shafts extending into the aeration tank, first stirring paddles are further arranged on the first stirring shafts, and the first stirring paddles are positioned above the first aeration head in the aeration tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122122573.XU CN215414873U (en) | 2021-09-03 | 2021-09-03 | Automatic aeration detection device for fecal sewage in oxidation pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122122573.XU CN215414873U (en) | 2021-09-03 | 2021-09-03 | Automatic aeration detection device for fecal sewage in oxidation pond |
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| Publication Number | Publication Date |
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| CN215414873U true CN215414873U (en) | 2022-01-04 |
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| CN202122122573.XU Expired - Fee Related CN215414873U (en) | 2021-09-03 | 2021-09-03 | Automatic aeration detection device for fecal sewage in oxidation pond |
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| Country | Link |
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| CN (1) | CN215414873U (en) |
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2021
- 2021-09-03 CN CN202122122573.XU patent/CN215414873U/en not_active Expired - Fee Related
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