CN213819321U - Large-scale pig farm rain and sewage diversion device - Google Patents

Abstract

The utility model provides a scale pig farm distribution of rain and sewage device, including be used for carrying and collecting the rainwater reposition of redundant personnel collection device that collects, be used for pig manure and sewage separation in the pig house and can carry out the dirty collection device of excrement that separates with the sewage that separates and be used for carrying out the rainwater that rainwater reposition of redundant personnel collection device collected to the pig house after handling and carrying out the rainwater that washes the mechanism that washes. The utility model discloses can realize that the separation of pig farm rainwater collection and pig house sewage is collected, the rainwater of collecting can be used to wash the pig house after ecological pond purifies, practices thrift clean fresh water resource.

Description

Large-scale pig farm rain and sewage diversion device

Technical Field

The utility model relates to an environmental protection technical field especially relates to a scale pig farm distribution of rain and sewage device.

Background

China is the country with the largest pork consumption in the world and is also the country with the largest live pig breeding in the world. In the meat product consumption structure of Chinese people, pork is the absolute majority. In 2019, 3.10 hundred million live pigs are stocked in the farm in China, and 4255.31 million tons of pork are produced annually. Live pig breeding also brings serious environmental problems while providing pork products for residents. According to the first general investigation of pollution sources, the agricultural area source exceeds the industrial point source and becomes the most main source of environmental pollution in China. Among them, livestock and poultry breeding is the most important source of agricultural non-point source pollution. According to the estimation, the livestock and poultry breeding industry in China produces 38 hundred million tons of various livestock and poultry manure every year, wherein the manure produced by pig breeding accounts for nearly half of the total amount. Therefore, the pollution problem of live pig breeding is solved, and half of the pollution problem of livestock and poultry breeding in China is solved.

The pig breeding pollution mainly comprises pig manure, padding, breeding wastewater, domestic sewage of workers in a field area and the like. In order to reduce the subsequent treatment capacity and treatment difficulty of the culture manure, the agricultural department provides a mode of 'dry-wet separation and rain-sewage diversion' to reduce the sewage yield from the source. The dry-wet separation is to adopt a dry manure cleaning mode to separately collect manure and sewage; the rain and sewage diversion means that independent sewage and rainwater collecting pipe networks are respectively built, sewage and rainwater are collected and treated, and the sewage yield is reduced from the source. However, the dirty ditch of excrement of old and old plant is uncovered formula mostly, and a small part adopts the underground piping mode, and the rainwater can freely get into in the dirty ditch of excrement, has reduced pollutant concentration in the excrement, has increased the dirty output of excrement by a wide margin, has increased the dirty treatment cost of follow-up excrement and has makeed the degree of difficulty. Therefore, the rain and sewage diversion transformation of old pig farms is needed. To newly-built pig farm, need fully consider the problem of distribution of rain and sewage when the design, accomplish to avoid the rainwater to get into in the sewage pipe network from the source.

In addition, due to the fact that the land of the breeding area is uneven, a small amount of excrement is occasionally piled in the open space between the piggery and the piggery in the dry excrement collecting process, and the air of the breeding area contains a large amount of odor, when the breeding area meets rainy days, the substances enter rainwater, the concentration of pollutants in the rainwater is greatly improved, and the dry excrement becomes a new pollution source; due to the fact that the geographical position of the culture area is uneven, rainwater is collected at a lower position in the field area, and the risk of entering a sewage pipe network is increased; the rainwater of pig house flows down along the eave, and the dirty ditch of excrement of pig house generally sets up along the eave position, if do not carry out corresponding isolation measure, the rainwater can get into in the dirty ditch of excrement in a large number. Therefore, rainwater in the culture area needs to be collected uniformly and then treated in a centralized manner.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a scale pig farm distribution of rain and sewage device, the purpose realizes that the collection of pig farm rainwater reposition of redundant personnel and the interior collection of sewage of pig house, and can realize utilizing the rainwater to wash the pig house.

Based on the above purpose, the utility model provides a scale pig farm distribution of rain and sewage device, including being used for carrying and collecting the rainwater reposition of redundant personnel collection device that collects, be used for pig manure and sewage separation in the pig house and can carry out the excrement collection device that collects with the sewage that separates and be used for carrying the rainwater that rainwater reposition of redundant personnel collection device collected to the pig house rainwater after handling and washing the mechanism with the rainwater that rainwater reposition of redundant personnel collection device collected is led to carry out to wash.

Rainwater reposition of redundant personnel collection device includes that rainwater ditch, rainwater collect mouthful and locate the rainwater and collect mouthful ascending rainwater nest of tubes of length direction, and pig house eave end extends into in the rainwater collects mouthful, the export that the mouth was collected to the rainwater is connected with the rainwater ditch through rainwater nest of tubes respectively, and the length that the mouth was collected to the rainwater is not less than the length of pig house.

Preferably, the rainwater collecting port is of a semicircular or open structure. The rainwater collecting port can be made of aluminum alloy, stainless steel, PVC, PP and other materials.

Preferably, the width of the rainwater collecting opening is 25 cm-35 cm, and the height of the top end of the rainwater collecting opening is 5 cm-10 cm higher than the lowest position of the eave.

The rainwater pipe group comprises a plurality of rainwater pipes which are arranged in the length direction of the rainwater collecting opening at equal intervals. Preferably, a rainwater pipe is arranged below the rainwater collecting opening every 5-8 m and adopts a PVC pipe. The pipe diameter is 10 cm-15 cm. The outlets of the rainwater pipes are embedded below the ground surface and connected into a rainwater ditch.

The rainwater ditch is a plurality of, and a plurality of rainwater ditches form the rainwater ditch net and set up the open space region between the pig house, and regional ground between the pig house is the slope ground towards the rainwater ditch direction slope. The inclination angle is preferably 3-5 degrees, the inclined plane can be a hardened ground surface, and can also be a large amount of planted turf or other vegetation after the land is leveled. The rainwater ditch is used for collecting and collecting rainwater in the pigsty and the area between the pigsty and the pigsty, and is an open ditch. The rainwater ditch adopts a brick-concrete structure, the width is 20 cm-30 cm, and the height is 20 cm-30 cm.

The rainwater ditch net comprises a main ditch, a plurality of branch ditches connected with the main ditch and a plurality of branch ditches connected with the branch ditches, wherein the branch ditches, the branch ditches and the main ditch are stepped water gap arrangement structures with the flowing water direction gradually reduced.

The excrement collecting device comprises a pig toilet, an excrement ditch, an excrement pipe, a sewage discharge port arranged in the pig toilet and a surrounding filtering structure which surrounds the sewage discharge port and is provided with a sewage circulation gap, wherein an inlet of the excrement pipe is communicated with the sewage discharge port, and an outlet of the excrement pipe is connected with the excrement ditch arranged outside the pig house; the excrement sewage ditch and the rainwater ditch are arranged side by side, or the rainwater ditch is arranged above the excrement sewage ditch.

The enclosing and filtering structure is characterized in that a brick and a pigsty wall body are adopted to enclose the water inlet of the excrement pipe, a gap is reserved between the bricks, and the aperture of the gap is 1 cm-3 cm. And the excrement is cleaned in a dry excrement cleaning mode, the excrement is cleaned from the pigsty through manpower or an excrement scraping plate, and sewage flows into an excrement ditch from an excrement pipe.

The bottom surface in the pig toilet is an inclined bottom surface which gradually rises from the sewage discharge port to the outer side circumferential direction, and the bottom surface of the pig house is an inclined bottom surface which gradually rises from the pig toilet to the outer side circumferential direction. The angles of inclination are all preferably 5 to 10 degrees. Urine, flushing water and drinking water drip flow to the pig toilet along the slope.

The manure pipe is arranged in a downward inclination from the inlet to the outlet. The inclination angle is 30-60 degrees. The fecal pipe is a stainless steel, PVC or PP pipe with the pipe diameter of 15 cm-20 cm.

The excrement sewage ditch is provided with a sealing cover and an inspection opening, and the inner wall and the bottom surface of the excrement sewage ditch are provided with impermeable layers.

The rainwater conveying and flushing mechanism comprises a first rainwater conveying pipe, a second rainwater conveying pipe, a conveying pump arranged on the second rainwater conveying pipe and a flushing gun arranged on the inner wall of the pigsty, wherein a water inlet of the first rainwater conveying pipe is connected with a rainwater ditch, a water outlet of the first rainwater conveying pipe extends into the ecological pond, an inlet of the second rainwater conveying pipe extends into the ecological pond, and an outlet of the second rainwater conveying pipe is connected with the flushing gun.

Rainwater collected by the rainwater ditch enters the ecological pond for treatment, and water treated by the ecological pond is conveyed to the pigsty through the rainwater conveying and flushing mechanism to be used as pigsty flushing water. The ecological pond can be formed by transforming a fish pond or a pond, a large number of emergent aquatic and floating plants including reed, calamus, cattail, thalictrum, arum, juncus, sowthistle, curly pondweed, watery foxtail and the like are planted near a water inlet of the ecological pond in a fan shape, emergent aquatic plants including reed, cattail, thalictrum and thalictrum are planted around the pond in a large amount to form an emergent aquatic plant zone with the width of about 2m, salix bambusoides and salix shrubby are planted on a river bank in a large amount to protect a slope, submerged plants including elodea, pulvera hybrida, watery foxtail, watery eyeweed and the like are planted at the bottom of the pond, perennial bermuda grass, clover, ryegrass and the like are planted on the peripheral slope of the ecological pond. The land-aquatic plant coverage area of the slope protection accounts for more than 50% of the engineering construction area, wherein the cold-resistant aquatic plants account for more than 75% of the total area of the aquatic plants, and a small amount of fishes such as spotted silver carps, silver carps and the like which eat plankton, snails, freshwater mussels and the like are cultivated in the pond.

The second rainwater conveying pipe comprises a first guiding pipe and a second guiding pipe, the rainwater washing mechanism further comprises a rainwater buffering treatment pool, the ecological pond is connected with a water inlet of the rainwater buffering treatment pool through the first guiding pipe, a water outlet of the rainwater buffering treatment pool is connected with a washing gun through the second guiding pipe, and the conveying pump comprises a first pump arranged on the first guiding pipe and a second pump arranged on the second guiding pipe.

The rainwater buffer treatment tank comprises a tank body and a filter screen arranged in the tank body, a water inlet is formed in the bottom of the tank body, and a water outlet is formed in the upper part of the tank body.

The utility model has the advantages that:

1. the piggery rainwater collection and the separation and collection of the pigsty sewage are realized, and the collected rainwater can be used for flushing the pigsty, so that clean fresh water resources are saved.

2. The rainwater collecting device is used for collecting rainwater in a piggery in a pig farm and rainwater in a piggery room respectively, the rainwater collecting rate is high, and the condition of rainwater and sewage mixed flow is avoided from the source.

3. The rainwater is collected and relies on gravity and the difference in elevation in the place completely, collects the rainwater process and need not extra power, and the running cost is low.

4. Aiming at the characteristics of reconstruction and new pig farm, two distribution modes of rainwater ditch and excrement ditch are provided, and the adaptive surface of the device is increased.

5. The process is simple, the operability is strong, and the system construction cost is low.

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 these drawings without creative efforts.

Fig. 1 is a schematic side view of the present invention;

FIG. 2 is a side layout view of a device for collecting rainwater in a pigsty;

FIG. 3 is a schematic structural view of the rainwater ditch and the excrement ditch distributed side by side in the pig house area of the present invention;

fig. 4 is a schematic view of the vertical distribution of the rainwater ditch and the excrement sewage ditch in the pig barn area of the present invention.

Fig. 5 is the structure schematic diagram of the rainwater treatment and transportation of the rainwater buffering treatment pool of the utility model.

Labeled as:

1. a pigsty; 2. a bevel; 3. a rain pipe; 4. a rainwater collection port; 5. an eave; 6. a cover plate; 7. a rain gutter; 8. a fecal sewage ditch; 9. a vertical wall; 10. a ground surface; 11. a fecal tube; 12. a rainwater buffer treatment pool; 13. a first pump; 14. a second pump; 15. a filter screen; 16. flushing the gun; 17. a squeegee; 18. an ecological pond.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.

It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present invention should have the ordinary meaning as understood by those having ordinary skill in the art to which the present disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

As shown in fig. 1 to 4, a large-scale pig farm rain and sewage diversion device comprises a rain and sewage diversion collecting device for diversion conveying and collection of rain and sewage flowing from the roof of a pig house 1 to an eave 5, a dung and sewage collecting device for separating pig manure from sewage in the pig house 1 and collecting the separated sewage, and a rain conveying and flushing mechanism for treating and guiding the rain collected by the rain and sewage diversion collecting device to the pig house 1 for flushing. This scale pig farm rain sewage diverging device can realize that pig farm rainwater is collected and the separation of pig house sewage is collected, and the rainwater of collecting can be used to wash the pig house after handling, practices thrift clean fresh water resource.

Wherein, mouth 4 is collected and the rainwater nest of tubes on 4 length direction of rainwater collection mouth is collected including rainwater ditch 7, rainwater to the rainwater, and 5 terminal extensions of 1 eave of pig house are connected with rainwater ditch 7 through rainwater nest of tubes respectively in 5, the export of rainwater collection mouth 4, and the length of rainwater collection mouth 4 is not less than the length of pig house 1. Preferably, the rainwater collection port 4 has a semicircular or open structure. The tail end of the eave extends into the rainwater collecting opening, so that the rainwater is collected in full. The rainwater collecting port 4 can be made of aluminum alloy, stainless steel, PVC, PP and other materials. The width of the rainwater collection port 4 is 25 cm-35 cm, and the height of the top end of the rainwater collection port 4 is preferably higher than the lowest position of the eave 5 by 5 cm-10 cm. During the specific installation, the rainwater pipe is fixed in the position that the pig house outer wall face corresponds through the support of a plurality of fixed rainwater pipes.

The rainwater pipes 3 are arranged in the rainwater collecting port 4 at equal intervals and comprise a plurality of rainwater pipes 3 in the length direction. Preferably, a rainwater pipe 3 is arranged below the rainwater collecting port 4 every 5 m-8 m, and the rainwater pipe 3 is a PVC pipe. The pipe diameter is related to the interval distance of rainwater pipes, rainfall, pigsty width and the like, and the pipe diameter is preferably 10-15 cm. The outlet of each rainwater pipe 3 is buried under the ground surface and connected into a rainwater ditch 7.

For a pig farm with a small area between pig houses, a mode that an area between the pig house and the rain gutter on the other side of the rain gutter is flattened and then made into an inclined plane on one side of the rain gutter is adopted, the inclination angle of the inclined plane 2 is 3-5 degrees, the inclined plane can be a hardened ground surface, a large amount of turf or other vegetation can be planted on the ground after the land is flattened, and rainwater flows into the rain gutter along the inclined plane. The rain gutter 7 is used for collecting and collecting rainwater in the pig house 1 and the area between the pig house 1 and the pig house 1, and is an open gutter. The rainwater ditch 7 adopts a brick-concrete structure, and has a width of 20 cm-30 cm and a height of 20 cm-30 cm. In a pig farm having a large inter-pig-house area, a plurality of rain gutters 7 are provided, a plurality of rain gutters 7 form a rain gutter net and are disposed in an open space area between the pig houses 1, and an area ground 10 between the pig houses 1 is an inclined ground 10 inclined in a direction toward the rain gutters 7. The inclination angle is preferably 3-5 degrees, and the inclined plane 2 can be a hardened ground surface or a large number of planted turf or other vegetation after land leveling.

The rainwater ditch net comprises a main ditch, a plurality of branch ditches connected with the main ditch and a plurality of branch ditches connected with the branch ditches, wherein the branch ditches, the branch ditches and the main ditch are of stepped water gap arrangement structures with the flowing water direction gradually reduced. Particularly, for a pig farm with a large area among pig houses, a rainwater collection ditch network is built in the area to collect rainwater, a rainwater ditch network consisting of a main ditch and branch ditches is built, one main ditch is connected with a plurality of branch ditches, branch ditches can be connected to the branch ditches, rainwater in the area among the pig houses is collected and converged into the main ditches, and finally the rainwater enters a rainwater collection pool or an ecological pond. When the rain ditch is constructed, a certain gradient is required to be set, the main pipe is low, the branch pipe is high, the water inlet is high, the water outlet is low, and the gradient is 3-5 degrees.

The excrement collecting device comprises a pig toilet, an excrement ditch 8, an excrement pipe 11, a sewage discharge port arranged in the pig toilet and a closed filtering structure which encloses the sewage discharge port and is provided with a sewage circulation gap in advance, wherein an inlet of the excrement pipe 11 is communicated with the sewage discharge port, and an outlet of the excrement pipe 11 is connected with the excrement ditch 8 arranged outside the pig house 1; the excrement sewage ditch 8 and the rainwater ditch 7 are arranged side by side, or the rainwater ditch 7 is arranged above the excrement sewage ditch 8. The bottom surface in the pig toilet is an inclined bottom surface which gradually rises from the sewage discharge port to the outer circumferential direction, and the bottom surface of the pig house 1 is an inclined bottom surface which gradually rises from the pig toilet to the outer circumferential direction. Specifically, one corner of the pigsty close to the vertical wall 9 is used as a toilet for pigs, the pigs discharge excrement and urine, the other three corners of the pigsty are made into a certain slope at the corner, the slope is 5-10 degrees, and urine, flushing water and drinking water drip flow to the toilet for the pigs along the slope. The lowest part of the pig toilet is provided with an excrement pipe, and the other end of the excrement pipe is connected into an excrement ditch. The manure pipe 11 is arranged obliquely downwards from the inlet to the outlet. The inclination angle is 30-60 degrees. The fecal pipe 11 is a stainless steel, PVC or PP pipe with the pipe diameter of 15 cm-20 cm.

The enclosing and filtering structure is characterized in that bricks and piggery walls are adopted to enclose the water inlet of the excrement pipe 11, gaps are reserved between the bricks, and the aperture of each gap is 1-3 cm. The manure is cleaned in a dry manure cleaning mode, the manure is cleaned out of the pigsty 1 through manual work or a manure scraping plate, and sewage flows into the manure ditch 8 from the manure pipe 11.

As a further improvement, the excrement ditch 8 is provided with a sealing cover and an inspection opening, and the inner wall and the bottom surface of the excrement ditch 8 are provided with impermeable layers. Specifically, the sewage ditch is positioned at the position below the ground outside the vertical wall of the pigsty, the top of the sewage ditch is provided with a cover plate 6, and the cover plate is subjected to sealing treatment to prevent sundries from entering the sewage ditch. The excrement ditch need set up the inspection mouth at a distance of every, avoids excrement to pollute the ditch jam. The excrement ditch is of a steel-concrete or quasi-concrete structure, the bottom and the periphery of the excrement ditch are subjected to anti-seepage treatment, the width of the excrement ditch is 30-50 cm, and the depth of the excrement ditch is 30-60 cm.

The rainwater conveying and flushing mechanism comprises a first rainwater conveying pipe, a second rainwater conveying pipe, a conveying pump arranged on the second rainwater conveying pipe and a flushing gun 16 arranged on the inner wall of the pigsty, wherein a water inlet of the first rainwater conveying pipe is connected with a rainwater ditch 7, a water outlet of the first rainwater conveying pipe extends into the ecological pond 18, an inlet of the second rainwater conveying pipe extends into the ecological pond 18, and an outlet of the second rainwater conveying pipe is connected with the flushing gun 16. Rainwater collected by the rainwater ditches can be conveyed to a pigsty through a rainwater conveying and flushing mechanism to be used as pigsty flushing water after being treated by an ecological pond, the ecological pond can be formed by transforming a fish pond or a pond, a large number of emergent aquatic and floating plants including reed, calamus, cattail, thalictrum, arugula donax, arugula and the like are planted near a water inlet of the ecological pond in a fan shape, the emergent aquatic plants including reed, cattail, thalium and the like are planted around the pond in a large amount to form an emergent aquatic plant zone with the width of about 2m, salix bambusae and salix shrub are planted on river banks in a large amount to form slope protection, waterweed, pulverata, watery algae, optic foxtail, eyeweed and the like are planted on peripheral slopes of the ecological pond, perennial bermuda grass, trefoil black wheat grass and the like are planted on the peripheral slopes of the ecological pond. The land-aquatic plant coverage area of the slope protection accounts for more than 50% of the engineering construction area, wherein the cold-resistant aquatic plants account for more than 75% of the total area of the aquatic plants, and a small amount of fishes such as spotted silver carps, silver carps and the like which eat plankton, snails, freshwater mussels and the like are cultivated in the pond.

As a further improvement, as shown in fig. 5, the second rainwater conveying pipe comprises a first guiding pipe and a second guiding pipe, the rainwater washing mechanism further comprises a rainwater buffer treatment tank, the ecological pond 18 is connected with the water inlet of the rainwater buffer treatment tank 12 through the first guiding pipe, the water outlet of the rainwater buffer treatment tank 12 is connected with the washing gun 16 through the second guiding pipe, and the conveying pump comprises a first pump 13 arranged on the first guiding pipe and a second pump 14 arranged on the second guiding pipe. This kind of structure setting is convenient for handle the water in ecological pond, for example to adding disinfectant in the rainwater buffering treatment pond to the disinfection, also carrying out water quality treatment in handling the pond to the rainwater buffering, further improving the security after the rainwater gets into the pig house, reduce because the leading-in pig house of rainwater leads to the possibility that the pig is sick.

In order to avoid the phenomenon that the flushing gun is blocked by impurities in the ecological pond, the rainwater buffering treatment tank 12 comprises a tank body and a filter screen 15 arranged in the tank body, a water inlet is formed in the bottom of the tank body, and a water outlet is formed in the upper part of the tank body. The mesh size of the filter screen can be set according to specific requirements. In order to facilitate the replacement of the filter screen, the two sides of the filter screen are provided with bearing rods, and the bearing rods are detachably and fixedly connected with the inner side wall of the rainwater buffering treatment pool through fastening bolts.

As a further improvement, in order to avoid the influence of excessive impurities deposited at the bottom of the rainwater buffering treatment pool, a sludge discharge port and a pushing mechanism are arranged at the bottom of the rainwater buffering treatment pool, the pushing mechanism comprises a driving mechanism, a scraper 17 and guide rails arranged on two opposite inner walls of the rainwater buffering treatment pool, and the driving mechanism can drive the scraper 17 to move back and forth along the guide rails. The driving mechanism can be realized by adopting a method in the prior art, such as a motor driving mechanism (electric push rod), or a hydraulic cylinder, an air cylinder and the like, taking the electric push rod as an example, the telescopic end of the electric push rod is detachably connected with the scraper, so that the installation and the disassembly are convenient, the scraper is driven by the electric push rod to move along a guide rail (a slide rail), and the guide direction of the guide rail points to the sludge discharge port. When the scraper is arranged specifically, the middle position of the side wall of the scraper is connected with the guide rail and can slide along the guide rail. In order to avoid damage caused by mutual friction between the scraping plate and the inner wall of the rainwater buffering treatment pool, a sliding block can be arranged on the guide rail, the scraping plate is connected with the guide rail through the sliding block, and the sliding block and the scraping plate are driven to move along the guide rail through an electric push rod.

The beneficial effects of the present invention are further explained by the following embodiments.

Example 1:

in an old-scale pig farm, 6 pigsties are arranged, and 1200 live pigs are stored in the pigsty. The method adopts a dry manure cleaning process, sewage flows into a manure pipe (a PVC pipe with the diameter of 20 cm) outside the pigsty through a manure pipe at the bottom of the pigsty, and then enters a manure collecting pool for subsequent treatment without a rainwater collecting device. The vacant space of the pig house is not specially utilized, and most of the vacant space is full of various weeds. Before transformation, the amount of sewage actually collected by the pig farm every year is only three or four tons, the sewage collection rate is low, and the environment in the farm is poor.

In this example, two problems of greatly improving the manure collection rate and the rain and sewage diversion are to be solved. Firstly, completely dismantling the original excrement pipes, newly building an excrement ditch at the position of the excrement pipes, adopting a brick-and-concrete structure, wherein the width and the depth of the excrement ditch are 40cm and 40cm, performing waterproof and anti-seepage treatment, arranging a cover plate at the top of the excrement ditch, performing sealing and waterproof and anti-seepage treatment on the cover plate, and arranging 1 inspection port at every 10m of the excrement ditch to solve the problem of blockage of the excrement ditch. And secondly, building a rainwater ditch in a brick-concrete structure at a parallel position outside the excrement ditch, and painting the ditch with cement mortar, wherein the width of the ditch is 25cm, and the depth of the ditch is 20 cm. And finally, building rain water collecting devices consisting of rain water collecting ports and rain water pipes on two sides of the pigsty, arranging a rain water pipe at intervals of 6m, wherein the rain water pipe is a PVC pipe with the diameter of 15cm, connecting the bottom of the rain water pipe into a rain water ditch, and properly flattening the bottoms on two sides of the rain water ditch to form a slope surface towards the direction of the rain water ditch, so that rain water can be conveniently converged into the rain water ditch.

In this example, by rebuilding the sewage collection pipe network and the rainwater collection pipe network, the full collection of sewage and the distribution of rainwater and sewage are realized. The traditional excrement pipe has the problem of easy blockage in the excrement collection of a pig farm, so that an excrement ditch is abandoned and newly built. Because the space in the field is abundant and the area between the piggeries is not fully utilized, a rainwater ditch and an excrement ditch are arranged side by side. After the improvement, the sewage collection rate of a pig farm is greatly improved, and the annual collection amount of the sewage is nearly 10 tons, which is close to the actual yield; rainwater is collected alone, can not get into in the sewage, has solved the distribution of rain and sewage problem from the source.

Example 2:

a certain scale pig farm reconstruction project comprises 5 pigsties and 1000 live pigs stored in the pigsty. The method adopts a dry manure cleaning process, the produced sewage is fermented by methane, the methane residue and the manure are composted and sold, and the methane liquid is discharged after multi-stage ecological purification. The farm is provided with a fishpond occupying about 50 mu of land, and the fishpond is used as an ecological pond after being transformed and is used for sewage end treatment and rainwater treatment. The pig farm adopts the mode that the manure ditch is arranged below the eave on one side of the pig house and is of a brick-concrete structure, the width of the manure ditch is 40cm, the depth of the manure ditch is 70cm, some vegetables are planted in the pig house, and some pig manure is stacked in the open air in partial areas.

In this example, the rain sewage flow is the key point of the modification. In view of the fact that the volume of the excrement ditch of the pig farm is large enough and the depth is deep enough, and in addition, most crops are planted in the open space of the pig farm, so that the space is not occupied additionally, the design is that on the basis of carrying out anti-leakage transformation on the original excrement ditch, a baffle is arranged at the middle upper part (the position of 30cm underground) of the excrement ditch, and after the anti-leakage treatment is carried out after the sealing treatment, the upper space of the excrement ditch is used as a rainwater ditch. Hardening and seepage-proofing treatment are needed for the areas of the original excrement ditch and the ground surfaces at two sides. For the area between the piggery and the piggery, the earth surface is made to have a certain gradient towards the dung drain direction on the premise of not changing the original utilization current situation, so that rainwater can be collected conveniently during rainstorm. The pig house rainwater is collected by a rainwater collecting device consisting of a rainwater collecting port and rainwater pipes and then flows into a rainwater ditch, 1 rainwater pipe is arranged every 5m, and the rainwater pipes are PVC pipes with the diameter of 15 cm. In addition, set up rainwater buffering treatment pond outside the pig house, the water in the rainwater ditch is carried into rainwater buffering treatment pond and is handled, later as required, carries the washing rifle of going into the pig house through pipeline with the rainwater after handling and washes the pig house.

In the embodiment, under the conditions that the land in the field is not additionally occupied and the land utilization mode in the field is not changed, the rainwater and the sewage are separately collected, no extra energy consumption is needed in the collection process, the collection cost is low, and the effect is good.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (9)

1. The utility model provides a scale pig farm distribution of rain and sewage device, its characterized in that, including be used for carrying and collecting the rainwater reposition of redundant personnel collection device that collects from the rainwater reposition of redundant personnel that the pig house roof flowed down to the eave, be used for in the pig house pig manure and sewage separation just can carry out the excrement collection device that collects with the sewage of separating and be used for carrying out the rainwater transport that washes to the pig house with the rainwater drainage collection device collection after handling.

2. The large-scale pig farm rain and sewage diversion device according to claim 1, wherein the rain water diversion and collection device comprises a rain water ditch, a rain water collection port and a rain water pipe group arranged in the length direction of the rain water collection port, the end of the eave of the pig farm extends into the rain water collection port, the outlet of the rain water collection port is connected with the rain water ditch through the rain water pipe group respectively, and the length of the rain water collection port is not less than the length of the pig farm.

3. The large-scale pig farm rain and sewage separating device of claim 2, wherein the number of the rain gutters is multiple, the rain gutters form a rain gutter net and are arranged in the open space area between the pig houses, and the ground of the area between the pig houses is an inclined ground which inclines towards the direction of the rain gutters.

4. The large-scale pig farm rain and sewage separating device according to claim 2, wherein the rain gutter network comprises a main gutter, a plurality of branch gutters connected with the main gutter, and a plurality of branch gutters connected with the branch gutters, and the branch gutters, the branch gutters and the main gutter are of a stepped water gap arrangement structure with the flowing direction gradually decreasing.

5. The large-scale pig farm rain and sewage separating device according to claim 2, wherein the manure collecting device comprises a pig toilet, a manure ditch, a manure pipe, a sewage discharge port arranged in the pig toilet and a closed filtering structure which closes the sewage discharge port and is provided with a sewage flow gap, an inlet of the manure pipe is communicated with the sewage discharge port, and an outlet of the manure pipe is connected with the manure ditch arranged outside the pig house; the excrement sewage ditch and the rainwater ditch are arranged side by side, or the rainwater ditch is arranged above the excrement sewage ditch.

6. The large-scale piggery rain and sewage diversion device according to claim 5, wherein the inner bottom surface of the pig toilet is an inclined bottom surface which gradually rises from the sewage discharge port to the outer circumferential direction, and the bottom surface of the piggery is an inclined bottom surface which gradually rises from the pig toilet to the outer circumferential direction.

7. The large-scale pig farm rain and sewage diversion device of claim 5 wherein the manure pipe is arranged in a downward inclination from the inlet to the outlet.

8. The large-scale pig farm rain and sewage diversion device according to claim 5, wherein the manure pit is provided with a sealing cover and an inspection opening, and the inner wall and the bottom surface of the manure pit are provided with impermeable layers.

9. The large-scale pig farm rain and sewage separating device according to claim 2, wherein the rain water conveying and flushing mechanism comprises a first rain water conveying pipe, a second rain water conveying pipe, a conveying pump arranged on the second rain water conveying pipe and a flushing gun arranged on the inner wall of the pig house, wherein a water inlet of the first rain water conveying pipe is connected with the rain gutter, a water outlet of the first rain water conveying pipe extends into the ecological pond, an inlet of the second rain water conveying pipe extends into the ecological pond, and an outlet of the second rain water conveying pipe is connected with the flushing gun.

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