CN215327299U

CN215327299U - Sewage pretreatment system of experimental animal breeding hurdle

Info

Publication number: CN215327299U
Application number: CN202121353291.4U
Authority: CN
Inventors: 张伟军; 苗晓青; 梁金礼; 黄庆宇; 何积存; 杨仲文; 王鑫; 刘超
Original assignee: Fangchenggang Kanglu Biotechnology Co ltd
Current assignee: Fangchenggang Kanglu Biotechnology Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-28
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses a sewage pretreatment system for an experimental animal breeding stall, which comprises: a filter device, a regulating tank, a crusher and a septic tank. The filtering device is used for filtering the sewage conveyed from the sewage ditch, the filtrate is conveyed to the regulating tank, and the solid matter is conveyed to the crusher; the crusher is responsible for crushing the solid matter, and the crushed matter is conveyed to the septic tank; the septic tank is responsible for fermenting the crushed materials, and the upper liquid obtained by fermentation is conveyed to the regulating tank; the adjusting tank is used for adjusting the conveyed filtrate and the upper-layer liquid obtained by fermentation; the regulating reservoir is provided with a first pump which is responsible for pumping out the liquid after the regulating treatment in the regulating reservoir. The utility model can solve the adverse effect of solid suspended matters in the sewage on the sewage regulation and treatment, also solve the problem of the stop of the regulating reservoir water pump caused by solid waste, and improve the sewage treatment efficiency.

Description

Sewage pretreatment system of experimental animal breeding hurdle

Technical Field

The utility model relates to the field of experimental animal breeding, in particular to a sewage pretreatment system for an experimental animal breeding stall.

Background

An important problem in the pollution control of livestock and poultry breeding is the treatment problem of breeding sewage. For large-scale experimental animal farms, the comprehensive treatment of the aquaculture sewage involves multiple links such as sewage generation, sewage collection, sewage treatment and the like.

Taking a test monkey (a cynomolgus monkey) as an example, in the operation of a large-scale experimental animal farm, a pure-ground semi-open type feeding scheme is mostly adopted in a traditional mode, and animal excrement is totally accumulated on the ground of a stall, so that the cleaning difficulty is high, and the water consumption is high. After animal excrement accumulated on the ground of the stall is washed by a large amount of water, sewage flows into the drainage ditch. And directly conveying the sewage in the drainage ditch to the regulating tank. The adjusting tank is responsible for adjusting the water quantity and the water quality of the sewage, such as adjusting the pH value and the water temperature of the sewage, pre-aerating, and sometimes having the functions of precipitating, mixing, adding medicine, neutralizing, pre-acidifying and the like. Fig. 1 is a schematic view of a sewage pretreatment system in a conventional manner. The main defect is that the sewage conveyed by the drainage ditch contains a large amount of solid suspended substances, and the solid suspended substances not only disturb the regulation treatment effect of the sewage in the regulating tank, so that the treatment time is greatly prolonged, but also often cause the problem of the stop of a water pump in the regulating tank.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a sewage pretreatment system for an experimental animal breeding pen, which can solve the adverse effect of solid suspended matters in sewage on sewage regulation and treatment, solve the problem of regulating reservoir water pump stalling caused by solid wastes, and improve the sewage treatment efficiency.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model provides a sewage pretreatment system of experimental animals breeding hurdle, includes: a filtering device, a regulating tank, a crusher and a septic tank;

the filtering device is used for filtering sewage conveyed from the sewage ditch, filtrate obtained by filtering is conveyed to the regulating tank, and solid matter obtained by filtering is conveyed to the pulverizer;

the crusher is used for crushing the conveyed solid matter, and the obtained crushed matter is conveyed to the septic tank;

the septic tank is used for fermenting the conveyed crushed substances, and the upper liquid obtained by fermentation is conveyed to the regulating tank;

the adjusting tank is used for adjusting the conveyed filtrate and the upper-layer liquid obtained by fermentation; the regulating reservoir is provided with a first pump which is responsible for pumping out the liquid after the regulating treatment in the regulating reservoir.

Preferably, the filtering device is a grating, a receiving pool is arranged below the grating, and the receiving pool is connected with the adjusting pool through a pipeline.

Preferably, the filtering device is arranged above the regulating tank. And the filtrate obtained by filtering flows into the regulating reservoir along the pipeline due to gravity.

Specifically, the sewage ditch is responsible for receiving and washing the sewage that the laboratory animal breeds the fence house and leading sewage discharge.

Preferably, a first conveyor belt is arranged between the filtering device and the pulverizer, and the first conveyor belt is responsible for receiving the filtered solid matters and conveying the filtered solid matters to a feeding port of the pulverizer.

Preferably, a second conveyor belt is arranged between the pulverizer and the septic tank, and the second conveyor belt is responsible for receiving the pulverized material discharged by the pulverizer and conveying the pulverized material to the feed inlet of the septic tank.

Preferably, a conveying pipeline is arranged between the septic tank and the regulating tank, a second pump is installed on the conveying pipeline, and the second pump is responsible for conveying the upper-layer liquid obtained by fermentation in the septic tank to the regulating tank through the conveying pipeline.

Preferably, the sewage pretreatment system of the experimental animal breeding pen further comprises a sludge tank, and the lower-layer sediments obtained by fermentation of the septic tank are conveyed to the sludge tank for treatment.

According to the sewage pretreatment system for the experimental animal breeding pen, solid-liquid separation is performed on sewage by using the filtering device, filtrate obtained by filtering is discharged into the regulating tank, solid obtained by filtering is discharged into the pulverizer, then the pulverizer is used for pulverizing and fermentation is performed in the fermentation tank, fermented upper-layer liquid is discharged into the regulating tank for regulation treatment, and fermented lower-layer sediment is discharged into the sludge tank. The system cuts off the way of solid matters in the sewage to enter the regulating tank, the regulation treatment of the liquid in the regulating tank is not interfered by a large amount of solid matters any more, and the regulation efficiency is obviously improved. In the system, the solid matters (including crude fibers) in the filtrate entering the regulating reservoir and the fermented upper-layer liquid are greatly reduced compared with the traditional scheme, and the problem that the second pump arranged in the regulating reservoir is wound by the solid matters (including the crude fibers) to block the machine during liquid pumping is effectively solved. Statistics show that the repair rate of the improved first pump is reduced by 90% compared with the traditional scheme.

Drawings

Fig. 1 is a schematic structural view of a sewage pretreatment system in a conventional manner.

Fig. 2 is a schematic structural view of a sewage pretreatment system for an experimental animal breeding pen according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of another embodiment of the sewage pretreatment system for the experimental animal breeding pen.

Description of the symbols in the drawings:

1 is a drainage ditch;

2 is a regulating tank;

3 is a first pump;

4 is a filtering device;

5, a pulverizer;

6 is a fermentation tank;

7 is a sludge tank;

8 is a first conveyor belt;

9 is a second conveyor belt;

and 10 is a second pump.

Detailed Description

The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. 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 one

As shown in figure 2, the sewage pretreatment system for the experimental animal breeding pen comprises a filtering device 4, a regulating tank 2, a crusher 5 and a septic tank 6. The filtering device 4 is used for filtering sewage conveyed from the sewage ditch 1, filtrate obtained by filtering is conveyed to the regulating tank 2, and solid matter obtained by filtering is conveyed to the pulverizer 5; the crusher 5 is used for crushing the conveyed solid matter, and the obtained crushed matter is conveyed to the septic tank 6; the septic tank 6 is used for fermenting the conveyed crushed materials, and the upper liquid obtained by fermentation is conveyed to the regulating tank 2; the adjusting tank 2 is used for adjusting the conveyed filtrate and the upper-layer liquid obtained by fermentation; the regulating reservoir 2 is provided with a first pump 3, and the first pump 3 is responsible for pumping out the liquid after the regulating treatment in the regulating reservoir 2.

The sewage pretreatment system of experimental animals breeding pen of this embodiment utilizes filter equipment 4 earlier to carry out solid-liquid separation with sewage, discharges the filtrating that obtains into equalizing basin 2, discharges the solid that obtains into rubbing crusher 5 with filtering, and the rethread rubbing crusher 5 is smashed and fermentation tank 6 is fermented, discharges the upper liquid of fermentation into equalizing basin 2 and carries out the regulation processing. The system cuts off the way of solid matters in the sewage to enter the regulating tank 2, the regulation treatment of the liquid in the regulating tank 2 is not interfered by a large amount of solid matters any more, and the regulation efficiency is obviously improved. In the system, the filtrate entering the regulating reservoir 2 and the solid matters (including coarse fibers) in the fermented upper layer liquid are greatly reduced compared with the traditional scheme, and the problem that the second pump 3 arranged in the regulating reservoir 2 is wound by the solid matters (including the coarse fibers) to block the machine during liquid pumping is effectively solved. Statistically, the repair rate of the improved first pump 3 is reduced by 90% compared with the conventional scheme.

After the wastewater in the regulating tank 2 is regulated, liquid is extracted by a first pump 3 for further treatment, such as CAST reaction, anoxic and aerobic treatment, secondary sedimentation treatment and the like.

In this embodiment, the filtering device 4 is a grating, a receiving tank is arranged below the grating, and the receiving tank is connected with the adjusting tank 2 through a pipeline. The grid is preferably of steel. The filtering device 4 is preferably arranged above the regulating reservoir 2 so that the filtrate obtained by filtering flows directly into the regulating reservoir 2 along the pipeline due to gravity.

In this embodiment, the sewage ditch 1 is responsible for receiving and flushing sewage from the breeding pen of the laboratory animals and guiding the sewage to discharge. And all the sewage in the sewage ditch 1 enters the filtering device 4 for filtering.

As shown in fig. 2, a first conveyor belt 8 may be provided between the filtering device 4 and the pulverizer 5. The first conveyor belt 8 is responsible for receiving the filtered solids and conveying the filtered solids to a feed inlet of the pulverizer 5, and feeding the solids into the pulverizer 5. The use of the first conveyor belt 8 increases the degree of automation of the system and increases efficiency. In other embodiments, other delivery methods may be used.

As shown in fig. 2, a second conveyor belt 9 may be provided between the crusher 5 and the septic tank 6. The second conveyor belt 9 is used for receiving the crushed materials discharged by the crusher 5, conveying the crushed materials to the feed inlet of the septic tank 6 and putting the crushed materials into the septic tank 6. The use of the second conveyor belt 9 increases the degree of automation of the system and increases efficiency. In other embodiments, other delivery methods may be used.

As shown in fig. 2, a delivery pipe may be provided between the septic tank 6 and the adjusting tank 2, and the delivery pipe is provided with a second pump 10. The second pump 10 is responsible for conveying the upper liquid obtained by fermentation in the septic tank 6 to the regulating tank 2 through a conveying pipeline. The use of the second pump 10 increases the degree of automation of the system and increases efficiency. In other embodiments, other delivery methods may be used.

As shown in FIG. 2, the sewage pretreatment system of the experimental animal breeding pen further comprises a sludge tank 7. The sludge tank 7 is responsible for receiving the lower sediment obtained by fermenting the septic tank 6. The lower layer sediment obtained by fermentation in the septic tank 6 is conveyed to a sludge tank 7 for treatment, for example, filter pressing treatment and the like, and then is transported to the outside.

In summary, the above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a sewage pretreatment system of experimental animals breeding hurdle, includes: a filtering device, a regulating tank, a crusher and a septic tank;

2. The system of claim 1, wherein the filtering device is a grating, and a receiving tank is arranged below the grating and is connected with the regulating tank through a pipeline.

3. The system of claim 1, wherein the filtration device is disposed above the conditioning tank.

4. The system of claim 1, wherein a first conveyor is disposed between the filtration device and the crusher and is configured to receive the filtered solids and convey the filtered solids to a feed port of the crusher.

5. The system of claim 1, wherein a second conveyor belt is arranged between the crusher and the septic tank, and the second conveyor belt is used for receiving crushed material discharged from the crusher and conveying the crushed material to the feed inlet of the septic tank.

6. The system of claim 1, wherein a conveying pipeline is arranged between the septic tank and the regulating tank, and the conveying pipeline is provided with a second pump which is responsible for conveying the upper liquid obtained by fermentation in the septic tank to the regulating tank through the conveying pipeline.

7. The system of claim 1, further comprising a sludge tank, wherein the lower sediment from the fermentation of the septic tank is transported to the sludge tank for processing.