CN109197653B - Automatic clearance system of birds house - Google Patents
Automatic clearance system of birds house Download PDFInfo
- Publication number
- CN109197653B CN109197653B CN201811205849.7A CN201811205849A CN109197653B CN 109197653 B CN109197653 B CN 109197653B CN 201811205849 A CN201811205849 A CN 201811205849A CN 109197653 B CN109197653 B CN 109197653B
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- Prior art keywords
- poultry house
- sliding groove
- cleaning
- sliding
- honeycomb plate
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- 244000144977 poultry Species 0.000 claims abstract description 80
- 238000004140 cleaning Methods 0.000 claims abstract description 61
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000009423 ventilation Methods 0.000 claims abstract description 9
- 244000144972 livestock Species 0.000 claims description 12
- 230000008054 signal transmission Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000001413 cellular effect Effects 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 238000011065 in-situ storage Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 241000287828 Gallus gallus Species 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims description 2
- 241000272525 Anas platyrhynchos Species 0.000 claims 1
- 230000000384 rearing effect Effects 0.000 claims 1
- 238000009395 breeding Methods 0.000 abstract description 4
- 230000001488 breeding effect Effects 0.000 abstract description 4
- 241000894006 Bacteria Species 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract description 2
- 235000013594 poultry meat Nutrition 0.000 description 55
- 239000010865 sewage Substances 0.000 description 5
- 210000003608 fece Anatomy 0.000 description 4
- 238000000855 fermentation Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000272517 Anseriformes Species 0.000 description 1
- 241000271566 Aves Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010564 aerobic fermentation Methods 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013330 chicken meat Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
- A01K1/0052—Arrangement of fans or blowers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
- A01K31/04—Dropping-boards; Devices for removing excrement
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Birds (AREA)
- Housing For Livestock And Birds (AREA)
Abstract
The invention relates to an automatic poultry house cleaning system, which comprises a poultry house, a cleaning room, a ventilation system, a sliding system and a control part, wherein the poultry house is provided with a cleaning room; the control part is used for monitoring the concentration of harmful gas in the poultry house and the excrement amount on the honeycomb plate on the bottom wall of the poultry house, giving a corresponding control command and cleaning the honeycomb plate by the cleaning chamber according to the control command. According to the poultry house excrement cleaning device, the automatic control system is adopted to clean the poultry house excrement, the cleaning process is arranged outside the poultry house, the rest of the poultry house is not influenced during cleaning, and meanwhile, the arrangement of the drying part can prevent bacteria from breeding in a humid environment.
Description
Technical Field
The invention relates to the technical field of cleaning systems, in particular to an automatic poultry house cleaning system.
Background
8 days 10 and 8 months 2013, the 26 th routine meeting of the State Council passes the pollution control regulations on livestock scale cultivation, and the regulations are definitely proposed from 1 month 1 and 1 day 2014: who pollutes who governs, brings scattered households into a way of ecological absorption combining prevention, management and farming and pasturing. However, livestock and poultry breeding has many pollution sources, wide range and large amount, so the principle of reduction priority must be particularly emphasized in treatment, and the production process is improved through breeding structure adjustment and clean production.
At present, many cities and towns with relatively developed domestic economy are defined with no-nutrition areas. The livestock and poultry farm has to adopt harmless treatment, the excrement and the sewage reach the discharge standard, sewage treatment projects are built in some large-scale farms, partial excrement and the sewage adopt anaerobic fermentation to prepare methane or microbial aerobic fermentation technology to prepare organic fertilizer and the like, but a part of livestock and poultry excrement and the sewage cannot be effectively treated and utilized by a part of livestock and poultry farms, and the livestock and poultry excrement and the sewage become main sources of agricultural non-point source pollution.
A common excrement cleaning process is a water excrement flushing process, but the method adopted in the existing cleaning process is that workers directly use water to flush excrement, and the workers directly face pollution sources, so that the health of the workers is greatly threatened, and meanwhile, the workload of the workers is large; secondly, the cleaned poultry house is in a humid environment, germs are easy to breed, and the poultry and the livestock cannot enter the poultry house within a period of time after the cleaning is carried out and finished.
Disclosure of Invention
The invention aims to provide an automatic poultry house cleaning system, which improves the working environment of workers, reduces the labor intensity and simultaneously realizes the automation of a dung cleaning process.
An automatic poultry house cleaning system comprises a poultry house, a cleaning chamber, a ventilation system, a sliding system and a control part.
The poultry house comprises a ceiling, four side walls and a honeycomb plate, wherein the bottom of the ceiling is used for receiving excrement, the lower portion of the honeycomb plate is provided with an excrement receiving bin, the poultry house is used as a space for livestock and poultry to rest and move, a first sliding groove and a second sliding groove are formed in the front side wall and the rear side wall of the poultry house, the first sliding groove and the second sliding groove are used for two honeycomb plates which are arranged up and down to move left and right in the poultry house, and the first sliding groove is arranged on the upper portion of the second sliding groove.
The cleaning chamber is positioned on the right side of the poultry house and arranged side by side with the poultry house, and comprises a ceiling and four side walls; a third sliding groove, a fourth sliding groove and a fifth sliding groove are formed in the front side wall and the rear side wall of the cleaning chamber, the third sliding groove, the fourth sliding groove and the fifth sliding groove are sequentially arranged from top to bottom, the third sliding groove is used for enabling the flexible scraper to move left and right, the fourth sliding groove and the fifth sliding groove are used for enabling the honeycomb plate to move left and right, and the fourth sliding groove and the fifth sliding groove respectively correspond to the first sliding groove and the second sliding groove in the poultry house and enable the honeycomb plate to enter and exit the poultry house and the cleaning chamber; the top of the cleaning chamber is also provided with a plurality of water spray guns and hot air nozzles, wherein the flexible scrapers, the water spray guns and the hot air nozzles can stretch up and down, and the cleaning chamber is used for cleaning the honeycomb plate.
Ventilation system, including being located poultry house left side wall upper portion's air supply mouth, be located the excrement and urine receiving storehouse of poultry house lower part to and receive frequency conversion air exhauster and the air suction pipeline that the storehouse is connected with excrement and urine, fermentation system is gone into in the air suction pipeline connection, and ventilation system is used for the circulation of gas in the poultry house.
The sliding system comprises a first sliding groove and a second sliding groove which are arranged in a poultry house, a fourth sliding groove and a fifth sliding groove which are arranged in a cleaning chamber, wherein the four sliding grooves of the sliding system are all arranged at the bottom of the side wall of the corresponding cavity, a raised sliding rail is arranged in each sliding groove, the head part of each sliding rail is provided with a flexible collision head, the sliding system further comprises double-layer pulleys arranged on the front side wall and the rear side wall of the honeycomb plate, the upper-layer pulleys are located on the upper portion of each sliding rail, the lower-layer pulleys are located on the lower portion of each sliding rail, and the sliding rails are clamped in.
The control part comprises an in-situ monitoring original, a signal transmission part, a remote control room and a video monitor, wherein the in-situ monitoring original comprises a plurality of gas concentration sensors uniformly arranged at four side walls and the center of the poultry house, and the gas concentration sensors are H2S gas concentration sensor, a plurality of stool thickness sensors uniformly arranged on the honeycomb plate, a stool thickness sensor and H2S the gas concentration sensor uploads a detection result to a control system in a remote control room through a signal transmission component, the control system comprises an alarm module, the control system calculates and judges received data and sends an alarm to workers in the control room through the alarm module, the workers receive the alarm and then remotely check the poultry house through a video monitor, when the cleaning requirement is met, the control system sends a command to a sliding system through the signal transmission component, and the cellular board enters a cleaning room to be cleaned.
Further, if it is H2And S, the gas concentration exceeds the standard, the alarm is given, the power of the variable-frequency exhaust fan is improved, and the signal transmission component adopts wireless transmission.
Further, the automatic poultry house cleaning system is used for feeding chickens or ducks.
Further, when the flexible scraper works, the blade of the flexible scraper scrapes on the honeycomb plate.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts a remote monitoring system to detect the pollution condition of the poultry house in real time, and workers can detect the condition of the poultry house in a remote control room; in addition to monitoring the thickness of the feces, H is also added2S, monitoring the gas concentration, wherein the alarm module sends out an alarm signal as long as one of the gas concentration and the gas concentration reaches an alarm value, and when H is detected2And when the S reaches the alarm value, the control system alarm module sends out an alarm and simultaneously sends out a command to improve the power of the variable-frequency air extractor of the ventilation system.
The invention adopts dry-wet separation and is provided with a sliding system, when the honeycomb plate needs to be cleaned, the honeycomb plate is moved out of the poultry house and sent into a special cleaning chamber, and the arrangement ensures that the rest of the livestock and poultry is not influenced during the cleaning work. Meanwhile, a hot air nozzle is arranged in the cleaning chamber to quickly dry the cleaned honeycomb plate, so that bacteria are prevented from breeding. The honeycomb plates are arranged redundantly, one plate is used in the poultry house, and the other plate can be used in the cleaning chamber for standby.
The invention adopts an automatic control system in the whole process, thereby greatly reducing the labor amount of workers and improving the working environment of the workers.
Drawings
FIG. 1 is a schematic structural view of the present invention
FIG. 2 is an enlarged view of portion A of FIG. 1
FIG. 3 is a left side view of the invention
In the figure: 1. a poultry house; 2. a cleaning chamber; 3. a remote control room; 4. a fermentation system; 5. a variable frequency exhaust fan; 6. h2S gas concentration sensor; 7. a stool thickness sensor; 8. a water spray gun; 9. a hot air nozzle; 10. a honeycomb panel; 11. a third chute; 12. a flexible scraper; 13. a feces receiving bin; 14. a poultry house front sidewall; 15. a first chute; 16. a second chute; 17. a collision head; 18. an upper layer pulley; 19. a slide rail; 20. a lower layer pulley; 21. the left side wall of the poultry house; 22. a poultry house ceiling; 23 air supply ports.
Detailed Description
Embodiments of the present invention are described in detail below with reference to the accompanying drawings:
as shown in the figure, the poultry house automatic cleaning system comprises a poultry house 1, a cleaning chamber 2, a ventilation system, a sliding system and a control part. Poultry house 1 is arranged on the left side, and purge chamber 2 is arranged on the right side, and both share a side wall, and poultry house 1 and purge chamber 2 can be modularly constructed according to the farm feeding scale, and all poultry houses 1 and purge chambers 2 share a remote control room 3.
Both the poultry house 1 and the cleaning chamber 2 comprise a ceiling, four side walls and a sliding system; wherein the poultry house 1 also comprises a cellular board 10 with a bottom wall for receiving excrement, an excrement receiving bin 13 is arranged at the lower part of the cellular board 10, and the poultry house 1 is used as a space for resting and moving of livestock and poultry; cleaning chamber 2, as the place of honeycomb panel 10 cleaning operation, so set up and guarantee dry wet separation, pouity dwelling place 1 is as dry portion, and cleaning chamber 2 is as wet portion, and honeycomb panel 10 of accomplishing the clearance at cleaning chamber 2 can return pouity dwelling place 1 to continue to use after drying.
The front side wall and the rear side wall of the poultry house 1 are respectively provided with a first sliding chute 15 and a second sliding chute 16, the first sliding chute 15 and the second sliding chute 16 are used for enabling two honeycomb plates 10 which are arranged up and down to move left and right in the poultry house 1, and the first sliding chute 15 is arranged at the upper part of the second sliding chute 16.
A third sliding groove 11, a fourth sliding groove and a fifth sliding groove are formed in the front side wall and the rear side wall of the cleaning chamber 2, the third sliding groove 11, the fourth sliding groove and the fifth sliding groove are sequentially formed from top to bottom, the third sliding groove 11 is used for enabling the flexible scraper 12 to move left and right, the fourth sliding groove and the fifth sliding groove are used for enabling the honeycomb plate 10 to move left and right, and meanwhile the fourth sliding groove and the fifth sliding groove respectively correspond to a first sliding groove 15 and a second sliding groove 16 in the poultry house 1 and enable the honeycomb plate 10 to enter and exit the poultry house 1 and the cleaning chamber 2; the top of the cleaning chamber 2 is also provided with a plurality of water spray guns 8 and hot air nozzles 9, wherein the flexible scraper 12, the water spray guns 8 and the hot air nozzles 9 can be vertically stretched, and the cleaning chamber 2 is used for cleaning the honeycomb plate 10.
When the device works, firstly, the flexible scraper 12 sinks to the upper surface of the honeycomb plate 10, and the flexible scraper 12 is used for scraping the surface of the honeycomb plate 10 to remove the excrement bonded on the honeycomb plate 10; then, the honeycomb panel 10 is high-pressure washed by the water spray gun 8, and after the washing, the honeycomb panel 10 is dried by the hot air nozzle 9, and the hot air may be from a solar system installed on the ceiling of the washing chamber or may be electrically heated as a heat source.
Four chutes of the sliding system are all arranged at the bottom of the side wall of the corresponding cavity, raised sliding rails 19 are uniformly arranged in the four chutes, flexible collision heads 17 are arranged at the heads of the sliding rails 19, the sliding system further comprises double-layer pulleys arranged on the front and rear side walls of the cellular board 10, wherein the upper-layer pulley 18 is positioned at the upper part of the sliding rail 19, the lower-layer pulley 20 is positioned at the lower part of the sliding rail 19, and the sliding rails 19 are clamped by the upper-layer pulley 18 and the lower-layer pulley 20. The flexible impact head 17 can protect the cellular board 10 and prevent the sliding rail 19 from damaging the cellular board 10 during sliding.
Two sets of honeycomb plate sliding chutes are adopted to redundantly carry out the honeycomb plates, so that the rest and the activity of the livestock in the poultry house are not influenced when one set of honeycomb plate is cleaned.
A control part including an in-situ monitoring original, a signal transmission part, a remote control room 3 and a video monitor, wherein the in-situ monitoring original comprises a plurality of gas concentration sensors uniformly arranged at four side walls and the center of the poultry house, and the gas concentration sensor is H2S gas concentration sensor 6, a plurality of stool thickness sensors 7 uniformly arranged on honeycomb plate 10, stool thickness sensors 7 and H2S the gas concentration sensor 6 uploads the detection result to a control system in the remote control chamber 3 through a signal transmission part, the control system comprises an alarm module, the control system calculates and judges the received data and sends an alarm to a worker in the control chamber through the alarm module, the worker receives the alarm and remotely checks the poultry house 1 through a video monitor, when the cleaning requirement is met, the control system sends a command to the sliding system through the signal transmission part, and the cellular board 10 enters the cleaning chamber to be cleaned.
According to the invention, a remote monitoring system is adopted to detect the pollution condition of the poultry house in real time, and workers can detect the condition of the poultry house in a remote control room; in addition to monitoring the thickness of the feces, H is also added2S, monitoring the gas concentration, wherein the alarm module sends out an alarm signal as long as one of the gas concentration and the gas concentration reaches an alarm value, and when H is detected2When S reaches the alarm value, the control system sends an alarm moduleAnd sending a command to improve the power of a frequency conversion air extractor of the ventilation system while giving an alarm.
The invention adopts an automatic control system in the whole process, thereby greatly reducing the labor amount of workers and improving the working environment of the workers.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described embodiment merely represents one embodiment of the present invention, and the description thereof is more specific and detailed, but it should not be construed as limiting the scope of the invention. It should be noted that. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (4)
1. An automatic poultry house cleaning system comprises a poultry house, a cleaning chamber, a ventilation system, a sliding system and a control part; the method is characterized in that:
the poultry house comprises a ceiling, four side walls and a honeycomb plate, wherein the bottom wall of the honeycomb plate is used for receiving excrement, an excrement receiving bin is arranged at the lower part of the honeycomb plate, the poultry house is used as a space for resting and moving of livestock and poultry, a first sliding groove and a second sliding groove are respectively arranged on the front side wall and the rear side wall of the poultry house, the first sliding groove and the second sliding groove are used for enabling two honeycomb plates which are arranged up and down to move left and right in the poultry house, and the first sliding groove is arranged at the upper part of the second sliding groove;
the cleaning chamber is positioned on the right side of the poultry house and arranged side by side with the poultry house, and the cleaning chamber also comprises a ceiling and four side walls; the front side wall and the rear side wall of the cleaning chamber are respectively provided with a third sliding groove, a fourth sliding groove and a fifth sliding groove, the third sliding groove, the fourth sliding groove and the fifth sliding groove are sequentially arranged from top to bottom, the third sliding groove is used for the left and right movement of the flexible scraper, the fourth sliding groove and the fifth sliding groove are used for the left and right movement of the honeycomb plate, and the fourth sliding groove and the fifth sliding groove respectively correspond to the first sliding groove and the second sliding groove in the poultry house and are used for the honeycomb plate to enter and exit from the poultry house and the cleaning chamber; the top of the cleaning chamber is also provided with a plurality of water spray guns and hot air nozzles, wherein the flexible scraper, the water spray guns and the hot air nozzles can stretch up and down, and the cleaning chamber is used for cleaning the honeycomb plate;
the ventilation system comprises an air supply port positioned on the upper part of the left side wall of the poultry house, an excrement receiving bin positioned on the lower part of the poultry house, a variable-frequency exhaust fan and an exhaust pipeline, wherein the variable-frequency exhaust fan and the exhaust pipeline are connected with the excrement receiving bin;
the sliding system comprises a first sliding chute and a second sliding chute which are arranged in the poultry house, a fourth sliding chute and a fifth sliding chute in the cleaning chamber, wherein the four sliding chutes of the sliding system are all arranged at the bottom of the side wall of the corresponding chamber;
the control part comprises an in-situ monitoring original, a signal transmission part, a remote control room and a video monitor, wherein the in-situ monitoring original comprises a plurality of gas concentration sensors uniformly arranged at four side walls and the center of the poultry house, and the gas concentration sensors are H2S gas concentration sensor, a plurality of stool thickness sensors uniformly arranged on the honeycomb plate, a stool thickness sensor and H2S the gas concentration sensor uploads a detection result to a control system in a remote control room through a signal transmission component, the control system comprises an alarm module, the control system calculates and judges received data and sends an alarm to workers in the control room through the alarm module, the workers receive the alarm and then remotely check the poultry house through a video monitor, when the cleaning requirement is met, the control system sends a command to a sliding system through the signal transmission component, and the cellular board enters a cleaning room to be cleaned.
2. Automatic cleaning as claimed in claim 1The system, the control part, when H2When the S concentration reaches an alarm value and an alarm is given, the power of the variable-frequency exhaust fan is improved while the alarm is given, and the signal transmission component adopts wireless transmission.
3. The automated cleaning system of claim 1, the aviary being used for chicken or duck rearing.
4. The automated cleaning system of claim 1, wherein the flexible scraper blade operates such that its blade scrapes on the honeycomb panel.
Priority Applications (1)
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CN201811205849.7A CN109197653B (en) | 2018-10-17 | 2018-10-17 | Automatic clearance system of birds house |
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CN201811205849.7A CN109197653B (en) | 2018-10-17 | 2018-10-17 | Automatic clearance system of birds house |
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CN109197653A CN109197653A (en) | 2019-01-15 |
CN109197653B true CN109197653B (en) | 2021-02-12 |
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CN201811205849.7A Active CN109197653B (en) | 2018-10-17 | 2018-10-17 | Automatic clearance system of birds house |
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CN110150178B (en) * | 2019-06-05 | 2022-03-04 | 中原工学院 | Large-scale chicken farm intelligent excrement collection device based on high in clouds |
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Publication number | Priority date | Publication date | Assignee | Title |
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KR100651040B1 (en) * | 2005-05-20 | 2006-12-01 | 오수록 | The process apparatus for excrementitious matter of domestic animals |
CN104126513B (en) * | 2014-08-12 | 2016-02-10 | 丽水职业技术学院 | One is raised pigs automated management system |
CN204409239U (en) * | 2015-01-29 | 2015-06-24 | 易谦 | A kind of chicken coop ight soil cleaning plant of Automated condtrol |
CN106242874A (en) * | 2016-07-29 | 2016-12-21 | 无锡乐华自动化科技有限公司 | A kind of animal excrements turn fertilizer system and method for preparing fertilizer |
CN206196620U (en) * | 2016-11-15 | 2017-05-31 | 迪庆州圣杰高原鲵生物开发有限公司 | A kind of joss stick produced in Xizang pig cultivation colony house with cleaning function |
CN206576054U (en) * | 2016-12-01 | 2017-10-24 | 梅州市金绿现代农业发展有限公司 | A kind of dovecote for being convenient to clean excrement |
CN207054396U (en) * | 2017-07-31 | 2018-03-02 | 自贡市大安区庙坝镇肉牛养殖协会 | A kind of feeder pig manure automatic processing device |
CN207185556U (en) * | 2017-09-30 | 2018-04-06 | 重庆三峡学院 | A kind of rabbit propagating and breeding cage |
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