CN111578630A - Cow dung drying device and method based on reinforced concrete structure and application - Google Patents
Cow dung drying device and method based on reinforced concrete structure and application Download PDFInfo
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- CN111578630A CN111578630A CN202010381380.3A CN202010381380A CN111578630A CN 111578630 A CN111578630 A CN 111578630A CN 202010381380 A CN202010381380 A CN 202010381380A CN 111578630 A CN111578630 A CN 111578630A
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- cow dung
- reinforced concrete
- concrete structure
- drying
- dung
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- 210000003608 fece Anatomy 0.000 title claims abstract description 144
- 238000001035 drying Methods 0.000 title claims abstract description 54
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 18
- 241000283690 Bos taurus Species 0.000 claims abstract description 135
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000010871 livestock manure Substances 0.000 claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 239000002023 wood Substances 0.000 claims abstract description 6
- 230000003628 erosive effect Effects 0.000 claims abstract description 5
- 238000003860 storage Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 6
- 239000003337 fertilizer Substances 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003895 organic fertilizer Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/02—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
Abstract
The invention belongs to the technical field of intensive cattle farm cattle manure treatment, and discloses a cattle manure drying device based on a reinforced concrete structure, a method and application thereof, wherein a bamboo-wood structure dry fence type building is transformed into the reinforced concrete structure; the roof of the building blocks rain erosion, and the cow dung containing part is spaced from the roof properly to realize air circulation; the gap floor has a space distance of more than 2m with the ground, thereby playing the roles of moisture prevention and realizing air circulation; an underground water collecting tank is arranged under the ground. The cow dung is filled until being dry. The invention can realize the drying of cow dung of more than 100 tons at a time in rainy and humid southern areas. After the time is less than 1 year, the water content of the cow dung can be reduced from 85% to below 16%, the weight of the cow dung is reduced by more than 75%, and after the dry cow dung is combusted, the cow dung ash accounts for 3.5% of the weight of the fresh dung. After drying and combustion, the reduction production of the cow dung can be realized.
Description
Technical Field
The invention belongs to the technical field of intensive cattle farm cattle manure treatment, and particularly relates to a cattle manure drying device and method based on a reinforced concrete structure and application of the cattle manure drying device.
Background
At present, the cow dung composting technology is the most common technology for cow dung treatment, the cow dung is directly piled on the open ground, the cost is low, the treatment capacity is large, underground water is easily polluted, and large-area pollution is easily caused by rainfall. It is not applicable in the south. The production technology of the cow dung organic fertilizer has the advantages of water content of over 60 percent, high labor cost and transportation cost and low fertilizer efficiency. Cow dung rapid drying technology has huge energy consumption and particularly serious air pollution, and the option is already eliminated. According to the dry-wet separation technology of the cow dung, the solid part of the cow dung, particularly refractory substances, is separated, so that the quantitative production of the cow dung is realized. But a large amount of sewage is generated at the same time, and the problem of the sewage is originally a problem which is difficult to solve. The drying of the cow dung is a common phenomenon in a pasturing area, the dried cow dung solves the fuel problem of herdsmen and also solves the problem of the damage to grassland caused by the difficult degradation of the cow dung. Australia and New Zealand have no habit of burning cow dung, so the feces sheepfold is introduced to solve the problem. The drying scale of the cattle manure in the pastoral area is small, and the labor cost is high. The degradation of cow dung is a very lengthy process, and combustion can significantly accelerate this process. The combustion is premised on drying. After the cow dung is combusted, a good fertilizer, namely plant ash, can be formed. The dried cow dung has no odor; substantially free of transmission of pathogens and weed seeds; the water content is low, the quantity is obviously reduced, the quantity is less after combustion, and the transportation problem is solved; compared with the organic fertilizer of the cow dung, the plant ash has the advantages of high fertilizer efficiency, convenient use, difficult water source pollution, lack of dirty characteristics and higher use intention; the system has large capacity, high storage capacity, low energy consumption and capability of drying by utilizing natural force. The drying is not needed, and only the storage and the warehouse cleaning are needed, so that the labor cost is reduced. Of course, the construction cost is increased. Several sets of the system are built, and can be recycled.
In summary, the problems of the prior art are as follows: the prior method for treating the cow dung compost has the defects of high cow dung water content, high cow dung transportation cost, low cow dung fertilizer efficiency, difficult use and easy water-borne pollution.
The difficulty of solving the technical problems is as follows: the reinforced cement dry fence type building can store a large amount of cow dung, and the problem that the cow dung is washed by rainwater and pollutes underground water is avoided. The storage height of the cow dung is positively correlated with the possible evaporation amount per year, and the storage height can be increased and the drying time can be shortened as long as the technology capable of increasing the evaporation amount can be used. The possible annual evaporation capacity is the guarantee of the dry cow dung for the building. The difficulty of getting moisture back after the plant fiber is dried is an important basis for maintaining the dryness. The dry matter of the cow dung has high plant fiber content, and the dried cow dung can be even used for drying fresh cow dung. The building has good lifting space. The realization of the drying of the cow dung in large batch is not problematic. Degradation of cow dung is a very long process, and combustion after drying accelerates the process, and although drying takes much time, it still helps to solve the problem of cow dung.
The significance of solving the technical problems is as follows:
(1) after the cow dung is dried, the fiber content is high, the cow dung can be combusted, and the degradation process of the cow dung is accelerated.
(2) After the cow dung is combusted, the biological pollution is eliminated.
(3) After the cow dung is combusted, the problem of large cow dung output is solved.
(4) The plant ash is a good fertilizer and is more convenient to use than cow dung.
(5) Can control the pollution of cow dung to water source.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a cow dung drying device based on a reinforced concrete structure, a method and application.
The invention is realized in such a way that the cow dung drying method based on the reinforced concrete structure comprises the following steps:
firstly, reconstructing a bamboo-wood structure into a reinforced concrete structure; a ceiling of the building blocks rain erosion, and the cow dung containing part and the ceiling are in air circulation;
secondly, the distance between the crack floor and the ground is damp-proof; an underground water collecting tank is arranged under the ground;
thirdly, filling and compacting the cow dung; the water content was measured every month.
Further, the cow dung drying method based on the reinforced concrete structure mixes the fresh cow dung and the dry cow dung, and reduces the water content to 70% -75%.
Further, the mixed cow dung is stored in a dung storage area and compacted.
Further, the cow dung compacted in the dung storage area is punched to form an upper hole and a lower hole, moisture around the holes leaks to the upper hole and the lower hole, and water can flow to the ground under the action of gravity.
Further, the air flows up and down to enter the air.
Further, waiting for the water content of the cow dung to be reduced to below 20 percent.
Further, removing dry cow dung in a dung storage area;
further, the dry cow dung is divided into two parts, one part is used for mixing with the fresh cow dung, and the other part is used for combustion.
The invention also aims to provide a cow dung drying device based on the reinforced concrete structure, which implements the cow dung drying method based on the reinforced concrete structure, wherein the bottom of the cow dung drying device based on the reinforced concrete structure is a leaky floor; a ceiling is built; distance between the crack floor and the ground; an underground water collecting tank is arranged under the ground.
The invention also aims to provide an application of the reinforced concrete structure-based cow dung drying method in cow dung treatment in a cow farm.
In summary, the advantages and positive effects of the invention are: the invention realizes the drying of cow dung more than 100 tons at a time, and creates a small drying environment in rainy and humid southern areas. After 1 year, the water content of the cow dung is reduced from 85% to 16%, the weight of the cow dung is reduced by 75%, and after the dry cow dung is combusted, the cow dung ash accounts for 3.5% of the weight of the fresh dung. In the south of rainy and humid conditions, the cow dung can still be dried in a large amount; after drying and combustion, the reduction production of the cow dung can be realized. The building system can be used as a platform for drying cow dung, and other technologies can be introduced to shorten the drying time.
The invention is a novel cow dung treatment mode, and is very suitable for drying a large amount of cow dung in a humid and rainy southern area. The reinforced concrete type dry fence building is derived from the transformation of a dry fence type building, and a bamboo-wood structure is replaced by a reinforced concrete structure, so that the storage capacity of cow dung is improved by orders of magnitude. The cow dung in the building avoids rainwater pouring, and the aim of drying is fulfilled by water leakage, particularly the up-and-down circulation of air in the cow dung. The treatment mode can obviously reduce the water-borne pollution, dust pollution and odor caused by the cow dung. The cow dung does not need to be turned over in the drying process, so that the labor can be saved.
Drawings
Fig. 1 is a schematic structural diagram of a cow dung drying device based on a reinforced concrete structure according to an embodiment of the present invention;
in the figure: 1. a slatted floor; 2. a ground surface; 3. an underground water collecting tank; 4. and (4) a ceiling.
Fig. 2 is a structural schematic diagram of a cow dung drying control principle based on a reinforced concrete structure provided by an embodiment of the invention.
Fig. 3 is a flowchart of a reinforced concrete structure-based cow dung drying method for a reinforced concrete structure according to an embodiment of the present invention.
Fig. 4 is a flowchart of a reinforced concrete structure-based cow dung drying control method for a reinforced concrete structure according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
As shown in fig. 1 and 2, the bottom of the cow dung drying device based on the reinforced concrete structure provided by the embodiment of the invention is a leaky floor 1, and a ceiling 4 is installed on the top of the leaky floor 1; the bottom of the leaky floor 1 is a ground 2; an underground water collecting tank 3 is arranged below the ground 2.
As shown in fig. 3, the method for drying cow dung based on a reinforced concrete structure provided by the embodiment of the invention comprises the following steps:
s101: reconstructing a bamboo-wood structure into a reinforced concrete structure; the roof of the building blocks rain erosion, and the cow dung containing part is spaced from the roof properly to realize air circulation;
s102: the distance between the crack floor and the ground is damp-proof; an underground water collecting tank is arranged under the ground;
s103: filling and compacting the cow dung; the water content was measured every month.
As shown in fig. 4, the cow dung drying method based on the reinforced concrete structure provided by the embodiment of the invention specifically includes the following steps:
s201: mixing fresh cow dung and dry cow dung, and reducing the water content to 70-75%;
s202: storing the mixed cow dung in a dung storage area, and compacting;
s203: the cow dung compacted in the dung storage area is drilled into an upper hole and a lower hole, the water around the holes leaks to the upper hole and the lower hole (water collecting effect of a water well), and the water can flow to the ground under the action of gravity and also can flow into the air through the up-down circulation of the air (chimney effect); excessive water can be collected in the underground water collecting tank, so that water pollution is avoided;
s204: waiting for the water content of the cow dung to be reduced to below 20%;
s205: removing dry cow dung in the dung storage area;
s206: the dry cow dung is divided into two parts, one part is used for mixing with the fresh cow dung, and the other part is used for combustion.
The cow dung drying control method based on the reinforced concrete structure provided by the embodiment of the invention is used for reconstructing a bamboo-wood structure into the reinforced concrete structure according to the fighting experience of ancient people and rainy and humid environments, namely a dry hurdle type building. The building after transformation can splendid attire a large amount of cow dung, and the bottom is the crack floor. The building has a ceiling to prevent rainwater erosion, and the cow dung containing part has a proper distance with the ceiling to realize air circulation. The distance between the crack floor and the ground plays a role in moisture prevention and is convenient for people to enter and exit. An underground water collecting tank is arranged under the ground. Filling and compacting the cow dung. The water content was measured every month.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The method for drying the cow dung based on the reinforced concrete structure is characterized by comprising the following steps of:
firstly, reconstructing a bamboo-wood structure into a reinforced concrete structure; a ceiling of the building blocks rain erosion, and the cow dung containing part and the ceiling are in air circulation;
secondly, the distance between the crack floor and the ground is damp-proof; an underground water collecting tank is arranged under the ground;
thirdly, filling and compacting the cow dung; the water content was measured every month.
2. The reinforced concrete structure-based cattle manure drying method of claim 1, wherein the reinforced concrete structure-based cattle manure drying method mixes fresh cattle manure with dry cattle manure to reduce the water content to 70-75%.
3. The reinforced concrete structure-based cow dung drying method according to claim 2, wherein the mixed cow dung is stored in a dung storage area and compacted.
4. The method for drying cow dung based on a reinforced concrete structure of claim 3, wherein the cow dung compacted in the dung storage area is perforated into upper and lower holes, and water around the holes leaks into the upper and lower holes, so that the water can flow toward the ground under the action of gravity.
5. A method of drying cow dung on the basis of a reinforced concrete structure as claimed in claim 3, wherein the air is introduced into the air by circulating the air up and down.
6. The method of drying cow dung based on reinforced concrete structure as claimed in claim 4, wherein the moisture content of cow dung is waited to be reduced to below 20%.
7. The reinforced concrete structure-based cattle manure drying method of claim 6, wherein dried cattle manure in the manure storage area is removed.
8. The reinforced concrete structure-based cattle manure drying method of claim 7, wherein the dry cattle manure is divided into two parts, one part for mixing with fresh cattle manure and one part for combustion.
9. The reinforced concrete structure-based cow dung drying device for implementing the reinforced concrete structure-based cow dung drying method according to any one of claims 1 to 8, wherein a leaky floor is arranged at the bottom of the reinforced concrete structure-based cow dung drying device; a ceiling is built; distance between the crack floor and the ground; an underground water collecting tank is arranged under the ground.
10. Use of a method for drying cow dung based on a reinforced concrete structure according to any one of claims 1 to 8 in the treatment of cow dung in a cattle farm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010381380.3A CN111578630B (en) | 2020-05-08 | 2020-05-08 | Cow dung drying device and method based on reinforced concrete structure and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010381380.3A CN111578630B (en) | 2020-05-08 | 2020-05-08 | Cow dung drying device and method based on reinforced concrete structure and application |
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| Publication Number | Publication Date |
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| CN111578630A true CN111578630A (en) | 2020-08-25 |
| CN111578630B CN111578630B (en) | 2021-12-21 |
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| CN202010381380.3A Expired - Fee Related CN111578630B (en) | 2020-05-08 | 2020-05-08 | Cow dung drying device and method based on reinforced concrete structure and application |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010064426A (en) * | 1999-12-29 | 2001-07-09 | 장재근 | Apparatus for Feces concentration |
| CN200981842Y (en) * | 2006-12-06 | 2007-11-28 | 唐金陵 | Dewatering filtering bed for layer farm high wet dejecta |
| KR20140016711A (en) * | 2012-07-31 | 2014-02-10 | 김호신 | Hogs excrement disposal automatically circulation structure using the quick disassembly and ferment system |
| CN203586693U (en) * | 2013-11-25 | 2014-05-07 | 陈蜀乔 | Baking room adopting solar energy and marsh gas |
| CN203801463U (en) * | 2014-04-27 | 2014-09-03 | 天津市惠康种猪育种有限公司 | Conservation bed facilitating piglet growth |
| CN205536907U (en) * | 2015-12-16 | 2016-08-31 | 北京中科洁能环境工程技术有限公司 | Joint mummification device of natural pond sediment |
| CN106045193A (en) * | 2016-05-30 | 2016-10-26 | 田东雄桂牧业有限公司 | Hoggery waste treatment system |
| CN106316470A (en) * | 2016-10-26 | 2017-01-11 | 贵州柳江畜禽有限公司 | Groove type fecal material fermenting device and fecal material fermenting production line |
| CN107324625A (en) * | 2017-08-07 | 2017-11-07 | 张诗敏 | The duck shed dejecta treatment method of high-efficiency cleaning |
| CN207113422U (en) * | 2017-08-09 | 2018-03-16 | 鄢碧珠 | A kind of intelligent pig manure dewaterer |
| CN208108664U (en) * | 2018-04-19 | 2018-11-16 | 易晓艳 | Drying equipment is used in a kind of processing of organic fertilizer |
| CN209778430U (en) * | 2019-03-08 | 2019-12-13 | 赣州市飞天太阳能工程技术研究所 | livestock farm animal house manure treatment system |
| CN110818165A (en) * | 2019-12-04 | 2020-02-21 | 湖南厚霖生态环保有限公司 | Unpowered air dryer for non-point source pollution treatment of livestock and poultry breeding excrement |
-
2020
- 2020-05-08 CN CN202010381380.3A patent/CN111578630B/en not_active Expired - Fee Related
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010064426A (en) * | 1999-12-29 | 2001-07-09 | 장재근 | Apparatus for Feces concentration |
| CN200981842Y (en) * | 2006-12-06 | 2007-11-28 | 唐金陵 | Dewatering filtering bed for layer farm high wet dejecta |
| KR20140016711A (en) * | 2012-07-31 | 2014-02-10 | 김호신 | Hogs excrement disposal automatically circulation structure using the quick disassembly and ferment system |
| CN203586693U (en) * | 2013-11-25 | 2014-05-07 | 陈蜀乔 | Baking room adopting solar energy and marsh gas |
| CN203801463U (en) * | 2014-04-27 | 2014-09-03 | 天津市惠康种猪育种有限公司 | Conservation bed facilitating piglet growth |
| CN205536907U (en) * | 2015-12-16 | 2016-08-31 | 北京中科洁能环境工程技术有限公司 | Joint mummification device of natural pond sediment |
| CN106045193A (en) * | 2016-05-30 | 2016-10-26 | 田东雄桂牧业有限公司 | Hoggery waste treatment system |
| CN106316470A (en) * | 2016-10-26 | 2017-01-11 | 贵州柳江畜禽有限公司 | Groove type fecal material fermenting device and fecal material fermenting production line |
| CN107324625A (en) * | 2017-08-07 | 2017-11-07 | 张诗敏 | The duck shed dejecta treatment method of high-efficiency cleaning |
| CN207113422U (en) * | 2017-08-09 | 2018-03-16 | 鄢碧珠 | A kind of intelligent pig manure dewaterer |
| CN208108664U (en) * | 2018-04-19 | 2018-11-16 | 易晓艳 | Drying equipment is used in a kind of processing of organic fertilizer |
| CN209778430U (en) * | 2019-03-08 | 2019-12-13 | 赣州市飞天太阳能工程技术研究所 | livestock farm animal house manure treatment system |
| CN110818165A (en) * | 2019-12-04 | 2020-02-21 | 湖南厚霖生态环保有限公司 | Unpowered air dryer for non-point source pollution treatment of livestock and poultry breeding excrement |
Non-Patent Citations (1)
| Title |
|---|
| 李林、付沿东: "盐城市猪场猪粪处理技术", 《山东畜牧兽医》 * |
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| CN111578630B (en) | 2021-12-21 |
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