CN215756790U

CN215756790U - A high-efficient pretreatment systems for wastewater is bred in dairy farm

Info

Publication number: CN215756790U
Application number: CN202121884223.0U
Authority: CN
Inventors: 孔令海; 史金才; 周营; 林海泽; 俞捷径; 黎小辉
Original assignee: Guangdong Yikangsheng Environmental Protection Technology Co ltd
Current assignee: Guangdong Yikangsheng Environmental Protection Technology Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-02-08
Anticipated expiration: 2031-08-12

Abstract

The utility model discloses an efficient pretreatment system for breeding wastewater in a dairy farm, which comprises a water collecting tank, wherein the water collecting tank is communicated with a primary solid-liquid separation zone through a first pipeline; the first-stage solid-liquid separation zone is communicated with the transfer tank through a second pipeline; the transfer tank is communicated with the secondary solid-liquid separation zone through a third pipeline; the water collecting tank is arranged to collect the cattle farm raw water, the cattle farm raw water enters the primary solid-liquid separation zone through the first pipeline to remove most of solid slag and large suspended organic matters, the filtrate enters the transfer tank along the second pipeline, the transfer tank plays the roles of stirring and uniform water quality, the solid slag can be prevented from completely sinking into the bottom, then the solid-liquid separation is carried out through the secondary solid-liquid separation zone, and the whole high-efficiency solid-liquid separation is realized before the high-degree biochemical treatment of the wastewater is discharged.

Description

A high-efficient pretreatment systems for wastewater is bred in dairy farm

Technical Field

The utility model relates to the technical field of dairy farm breeding wastewater treatment, in particular to an efficient pretreatment system for dairy farm breeding wastewater.

Background

With the large-scale development of the dairy cow breeding industry, the amount of excrement generated by the dairy cow breeding industry is increased day by day, the problem of serious pollution is solved day by day, and the dairy cow farm has the characteristics of large sewage generation amount and high pollutant concentration, so that the ecological environment such as natural water bodies and the like can be seriously damaged.

From the viewpoint of environmental protection, the current aquaculture wastewater treatment mainly comprises three types, namely a physical treatment method, a chemical treatment method and a biological treatment method; the biological treatment method is most widely applied due to the advantages of less construction investment, low operation and maintenance cost, no secondary pollution, good ecological landscape effect and the like; however, the concentration of the wastewater in the dairy farm is high, and the suspended matters such as cellulose are more, so that the wastewater is difficult to be biochemically degraded in a short time, the wastewater is directly poured into the conventional treatment equipment for treatment, and the pretreatment for removing the suspended matters and solid residues before the wastewater treatment is not carried out, so that the effective treatment of the wastewater in the dairy farm is difficult to realize.

SUMMERY OF THE UTILITY MODEL

The utility model aims to design an efficient pretreatment system for breeding wastewater in a dairy farm, which is used for carrying out pretreatment to remove suspended matters, solid residues and the like in the wastewater.

In order to achieve the purpose, the utility model provides the following technical scheme: an efficient pretreatment system for breeding wastewater in a dairy farm comprises a water collecting tank, wherein the water collecting tank is communicated with a primary solid-liquid separation zone through a first pipeline; the first-stage solid-liquid separation zone is communicated with the transfer tank through a second pipeline; the transfer tank is communicated with a secondary solid-liquid separation zone through a third pipeline, and the primary solid-liquid separation zone comprises a solid-liquid separator; the transfer tank comprises an aeration module, a second liquid level meter and a second submersible sewage pump; the secondary solid-liquid separation zone comprises a screw stacking machine, the second submersible sewage pump is communicated with the screw stacking machine through the third pipeline, the screw stacking machine is also communicated with a fourth pipeline and a fifth pipeline, and the fourth pipeline and the fifth pipeline are respectively communicated with a PAM (pulse amplitude modulation) feeder and a tap water feeder; the first pipeline, the second pipeline, the third pipeline, the fourth pipeline and the fifth pipeline are all provided with first valves.

Further, the number of the solid-liquid separators is at least 2.

Further, the solid-liquid separator is a drum-type solid-liquid separator.

Further, the water collecting tank comprises a first submersible sewage pump, a stirring mechanism and a first liquid level meter; the first submersible sewage pump is communicated with the solid-liquid separator through a first pipeline.

Further, rabbling mechanism includes agitator motor, (mixing) shaft and stirring paddle leaf, agitator motor fixes the outer wall of catch basin, stirring paddle leaf is connected to the one end of (mixing) shaft and is located in the catch basin, the other end of (mixing) shaft is connected agitator motor's output.

Furthermore, a shielding cover is arranged above the solid-liquid separator.

Further, the third pipeline comprises a main pipeline communicated with the second submersible sewage pump and the screw stacking machine, and branch pipelines are arranged on the main pipeline; the first valve of the third pipeline is arranged on the main pipeline, and the branch pipeline is provided with a second valve.

Further, the aeration module comprises an aeration fan, an aeration pipeline and a cutting aeration disc, wherein the aeration fan is communicated with the aeration pipeline, and the aeration pipeline is communicated with the cutting aeration disc; and the cutting aeration disc is positioned at the bottom of the transfer tank.

Compared with the prior art, the utility model has the beneficial effects that: the high-efficiency pretreatment system for the breeding wastewater of the dairy farm is characterized in that a water collecting tank is arranged to collect raw water of the dairy farm, the raw water enters a primary solid-liquid separation zone through a first pipeline, a solid-liquid separator is used for removing most of solid residues and suspended organic matters with larger particles, filtrate enters a transfer tank along a second pipeline, the transfer tank plays roles of stirring and uniform water quality and can also prevent all the solid residues from sinking to the bottom, the solid residues are pumped to a secondary solid-liquid separation zone through a third pipeline by a second submersible sewage pump, a screw stacking machine is used for solid-liquid separation, and the integral high-efficiency solid-liquid separation pretreatment is realized before wastewater treatment;

through setting up the second level gauge, control the operation of second stealthily dirty pump through observing the liquid level, the aeration module plays the effect of stirring and even quality of water.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

the names of the components identified in the figures are as follows:

1. a water collecting tank; 2. a first conduit; 3. a first-stage solid-liquid separation zone; 4. a transfer pool; 5. a secondary solid-liquid separation zone; 6. a screw stacking machine; 7. an aeration fan; 8. an aeration pipe; 9. a branch pipe; 10. a shielding cover; 11. cutting the aeration disc; 12. a first liquid level meter; 13. a second level gauge; 14. a first submersible sewage pump; 15. a second submersible sewage pump; 16. a fourth conduit; 17. a fifth pipeline; 18. a tap water feeder; 19. a PAM applicator; 20. a stirring motor; 21. a stirring shaft; 22. a stirring paddle; 23. a solid-liquid separator; 24. a main pipeline; 25. a second conduit.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the description is only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Example (b): referring to fig. 1, an efficient pretreatment system for wastewater from dairy farm cultivation comprises a water collecting tank 1, wherein the water collecting tank 1 is communicated with a primary solid-liquid separation zone 3 through a first pipeline 2; the primary solid-liquid separation zone 3 is communicated with the transfer tank 4 through a second pipeline 25; the transfer tank 4 is communicated with a secondary solid-liquid separation zone 5 through a third pipeline, and the primary solid-liquid separation zone 3 comprises a solid-liquid separator 23; the transfer tank 4 comprises an aeration module, a second liquid level meter 13 and a second submersible sewage pump 15; the secondary solid-liquid separation zone 5 comprises a screw stacking machine 6, a second submersible sewage pump 15 is communicated with the screw stacking machine 6 through a third pipeline, the screw stacking machine 6 is also communicated with a fourth pipeline 16 and a fifth pipeline 17, and the fourth pipeline 16 and the fifth pipeline 17 are respectively communicated with a PAM feeder 19 and a tap water feeder 18; the first pipeline 2, the second pipeline 25, the third pipeline, the fourth pipeline 16 and the fifth pipeline 17 are all provided with a first valve.

At least 2 solid-liquid separators 23 are provided; so set up, can increase the handling capacity to solid sediment and suspended solid in the waste water, avoid a solid-liquid separation machine 23 long-time overload operation.

The solid-liquid separator 23 is a drum-type solid-liquid separator 23; so set up, drum-type solid-liquid separation machine 23's dehydration function in advance can be with most solid sediment and the suspended solid separation in the waste water, and it is effectual to realize solid-liquid separation.

The water collecting tank 1 comprises a first submersible sewage pump 14, a stirring mechanism and a first liquid level meter 12; the first submersible sewage pump 14 is communicated with a solid-liquid separator 23 through a first pipeline 2; so set up, start rabbling mechanism, rabbling mechanism stirs the waste water in the catch basin 1, avoids solid sediment and large granule suspended solid to sink in the bottom of catch basin 1, plays the effect of quality of water regulation, controls the flow size of drawing water of first stealthily dirty pump 14 through the liquid level of observing first level gauge 12 for waste water in the catch basin 1 can be taken out to solid-liquid separation machine 23 through first pipeline 2 by first stealthily dirty pump 14.

The stirring mechanism comprises a stirring motor 20, a stirring shaft 21 and a stirring paddle blade 22, the stirring motor 20 is fixed on the outer wall of the water collecting tank 1, one end of the stirring shaft 21 is connected with the stirring paddle blade 22 and is positioned in the water collecting tank 1, and the other end of the stirring shaft 21 is connected with the output end of the stirring motor 20.

A shielding cover 10 is arranged above the solid-liquid separator 23; with this arrangement, the shielding cover 10 functions as a shield and protects the solid-liquid separator 23.

The third pipeline comprises a main pipeline 24 communicated with the second submersible sewage pump 15 and the screw stacking machine 6, and a branch pipeline 9 is arranged on the main pipeline 24; the first valve of the third pipeline is arranged on the main pipeline 24, and the branch pipeline 9 is provided with a second valve; so set up, because second stealthily dirty pump 15 has the requirement of handling capacity, so through the second valve of the first valve on the trunk line 24 of adjusting the third pipeline and branch pipeline 9, control the flow that waste water was taken towards folding spiral shell machine 6 for partly waste water is taken towards folding spiral shell machine 6, and partly waste water flows back to in the transfer pond 4, has both guaranteed the normal operating of second stealthily dirty pump 15, has also avoided folding spiral shell machine 6's overload operation.

The aeration module comprises an aeration fan 7, an aeration pipeline 8 and a cutting aeration disc 11, wherein the aeration fan 7 is communicated with the aeration pipeline 8, and the aeration pipeline 8 is communicated with the cutting aeration disc 11; and the cutting aeration disc 11 is positioned at the bottom of the transfer tank 4; so set up, start aeration fan 7, drive cutting aeration dish 11 through aeration pipe 8 and aerate transfer pond 4, stir the waste water of transfer pond 4, prevent that solid sediment is whole to sink into the bottom, play the effect of even quality of water.

The working principle of the embodiment is as follows: the wastewater in the dairy farm is firstly collected into the water collecting tank 1, the wastewater in the water collecting tank 1 is stirred by a stirring mechanism in the water collecting tank 1, the water level height in the water collecting tank 1 is determined by observing a liquid level meter, the treatment capacity of a first submersible sewage pump 14 is further controlled, the wastewater in the water collecting tank 1 is pumped by the first submersible sewage pump 14 to a rotary drum type solid-liquid separator 23 through a first pipeline 2 to carry out solid-liquid separation on most solid residues and large-particle suspended organic matters, the wastewater enters a transfer tank 4 through a second pipeline 25, an aeration module in the transfer tank 4 plays a stirring role to prevent solid residues from settling, the water quality in the transfer tank 4 is uniform, the treatment capacity of a second submersible sewage pump 15 is further controlled by observing a second liquid level meter 13, the wastewater in the transfer tank 4 is pumped by the second submersible sewage pump 15 through a third pipeline to be stacked to a screw machine 6, a PAM feeder 19 adds PAM into the screw machine 6 through a fourth pipeline 16, PAM reacts with fine solid slag and suspended matters in the wastewater to flocculate the solid slag and the suspended matters into larger precipitates which can be effectively treated by the screw lamination machine 6 finally, so that solid-liquid separation in the whole pretreatment process is realized, finally, the wastewater is separated from the screw lamination machine 6 to obtain water, and then enters a subsequent biochemical unit for high-efficiency treatment and discharge, first valves on the first pipeline 2, the second pipeline 25, the third pipeline, the fourth pipeline 16 and the fifth pipeline 17 are all opened when in use, and the flow of the valves is adjusted according to actual conditions; when the screw stacking machine 6 needs to be added with water or needs to be cleaned, water is added through the water adding device.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper", "lower", "left", "right", "front", "rear", and the like as used herein are for illustrative purposes only.

Claims

1. The utility model provides a high-efficient pretreatment systems that is used for dairy farm to breed waste water which characterized in that: the device comprises a water collecting tank, wherein the water collecting tank is communicated with a primary solid-liquid separation zone through a first pipeline; the first-stage solid-liquid separation zone is communicated with the transfer tank through a second pipeline; the transfer tank is communicated with a secondary solid-liquid separation zone through a third pipeline, and the primary solid-liquid separation zone comprises a solid-liquid separator; the transfer tank comprises an aeration module, a second liquid level meter and a second submersible sewage pump; the secondary solid-liquid separation zone comprises a screw stacking machine, the second submersible sewage pump is communicated with the screw stacking machine through the third pipeline, and the screw stacking machine is also communicated with a fourth pipeline and a fifth pipeline.

2. The high efficiency pretreatment system for dairy farm aquaculture wastewater of claim 1, wherein: the number of the solid-liquid separators is at least 2.

3. The high efficiency pretreatment system for dairy farm aquaculture wastewater according to claim 1 or 2, characterized in that: the solid-liquid separator is a roller type solid-liquid separator.

4. The high efficiency pretreatment system for dairy farm aquaculture wastewater of claim 1, wherein: the water collecting tank comprises a first submersible sewage pump, a stirring mechanism and a first liquid level meter; the first submersible sewage pump is communicated with the solid-liquid separator through the first pipeline.

5. The high efficiency pretreatment system for dairy farm aquaculture wastewater of claim 4, wherein: the stirring mechanism comprises a stirring motor, a stirring shaft and a stirring paddle blade, wherein the stirring motor is fixed on the outer wall of the water collecting tank, one end of the stirring shaft is connected with the stirring paddle blade and is positioned in the water collecting tank, and the other end of the stirring shaft is connected with the output end of the stirring motor.

6. The high efficiency pretreatment system for dairy farm aquaculture wastewater of claim 1, wherein: a shielding cover is arranged above the solid-liquid separator.

7. The high efficiency pretreatment system for dairy farm aquaculture wastewater of claim 1, wherein: the third pipeline comprises a main pipeline communicated with the second submersible sewage pump and the screw stacking machine, and a branch pipeline is arranged on the main pipeline; the first valve of the third pipeline is arranged on the main pipeline, and the branch pipeline is provided with a second valve.

8. The high efficiency pretreatment system for dairy farm aquaculture wastewater of claim 1, wherein: the aeration module comprises an aeration fan, an aeration pipeline and a cutting aeration disc, wherein the aeration fan is communicated with the aeration pipeline, and the aeration pipeline is communicated with the cutting aeration disc; and the cutting aeration disc is positioned at the bottom of the transfer tank.