CN110407611A - A kind of livestock and poultry farm excrement pretreatment unit - Google Patents
A kind of livestock and poultry farm excrement pretreatment unit Download PDFInfo
- Publication number
- CN110407611A CN110407611A CN201910796629.4A CN201910796629A CN110407611A CN 110407611 A CN110407611 A CN 110407611A CN 201910796629 A CN201910796629 A CN 201910796629A CN 110407611 A CN110407611 A CN 110407611A
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- China
- Prior art keywords
- disinfection
- livestock
- dewatering
- deodorization box
- fixedly installed
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
- C05F3/06—Apparatus for the manufacture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Housing For Livestock And Birds (AREA)
Abstract
The present invention relates to livestock and poultry cultivation technical fields, and disclose a kind of livestock and poultry farm excrement pretreatment unit, including suction pipe, feed hopper is connected on the right side of suction pipe, drying device is fixedly installed with below feed hopper, dewatering and disinfecting case is fixedly installed on the right side of drying device, top in dewatering and disinfecting case is fixedly installed with ultraviolet sterilizer, disinfection and deodorization box is connected on the right of ultraviolet sterilizer, atomizer is connected on the inside of the top of disinfection and deodorization box, spray tube is connected with above atomizer, valve is connected with above spray tube, air blower is connected on the right side of disinfection and deodorization box, filtering exhaust outlet is equipped on the left of the left side of ultraviolet sterilizer and disinfection and deodorization box.The livestock and poultry farm excrement pretreatment unit realizes the rapid draing of excrement by drying device, ultraviolet sterilizer, disinfection and deodorization box, kills bacterium, the breeding for inhibiting mushroom and deodorizing effect.
Description
Technical field
The present invention relates to livestock and poultry cultivation technical field, specially a kind of livestock and poultry farm excrement pretreatment unit.
Background technique
With the implementation of the organic policy of national green ecological environment, community is committed to the harmless treatment of feces of livestock and poultry,
Agriculture Green Development action is implemented in environmental problem comprehensive treatment caused by feces of livestock and poultry, reduces investment, clean manufacturing, and waste returns
Receipts and industry pattern ecology promote organic fertilizer replacing fertilizer, in addition, the convenient technique of feces of livestock and poultry is to be based on natural conditions,
Economic condition and culture, scale, the factors such as environmental carrying capacity, using multiple technologies and mode, combination of sciences, feces of livestock and poultry is comprehensive
Management, it is innoxious to realize, the processing intent of ecology and the utilization of resources is reduced, Chinese feces of livestock and poultry mainly uses biogas fermentation
Raw material, fertilizer, breeding cockroach etc., biogas fermentation technology uses biogas fermentation equipment, carries out anaerobic fermentation processing to feces of livestock and poultry
And cultivation, for the biogas of production for cooking and illuminating, Methane fermented sludge and biogas slurry are used for agricultural production.
In recent years, the processing of Chinese livestock and poultry cultivation waste and the utilization of resources have been carried out, but are sufficiently realizing feces of livestock and poultry
For the use aspect of energy and fertilizer there are still many practical difficulties, good ecological environment is the sharpest edges and treasured of social development
Which kind of energy utilization patterns no matter your wealth, livestock and poultry farm excrement use, require the pretreatment of excrement early period, in time pre- place
Reason link can reduce the sick probability of livestock and poultry, can effectively clear up environment deodorization, improve efficiency of energy utilization, and it is numerous to reduce bacterium
It grows, but most of excrement are to lead to ambient enviroment stench without pretreatment in China's livestock and poultry farm, has in excrement a large amount of
Bacterial reproduction causes energy to reduce for the angle of energy utilization, so that the later period available energy is reduced, in addition, excrement
In contain a large amount of moisture, be not easy to secondary treatment, utilization and transport, therefore propose a kind of pretreatment of livestock and poultry farm excrement
Device solves problem above.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of livestock and poultry farm excrement pretreatment unit, have sterilization,
The advantages of drying, deodorization, the energy make full use of solves ambient enviroment stench, there is a large amount of bacterial reproductions and excrement in excrement
In containing largely be not easy to secondary treatment, utilization and transport the problem of.
(2) technical solution
To realize purpose that above-mentioned sterilization, drying, deodorization, the energy make full use of, the invention provides the following technical scheme: one
Livestock and poultry farm excrement pretreatment unit, including suction pipe are planted, is connected with feed hopper, feed hopper on the right side of the suction pipe
Lower section be fixedly installed with drying device, drying device includes drying cylinder, the axis of rolling, helical-blade, spiral electric heating piece, drying device
The left side of drying cylinder be flexibly connected with driving motor by the axis of rolling, dewatering and disinfecting is fixedly installed on the right side of drying device
Case, the inner roof wall of dewatering and disinfecting case are fixedly installed with ultraviolet sterilizer, are connected with disinfection on the right of dewatering and disinfecting case and remove
The bottom of smelly case, dewatering and disinfecting case and disinfection and deodorization box is connected with sewage conduct, the inner roof wall activity of disinfection and deodorization box
It is connected with atomizer, spray tube is connected with above atomizer, valve is connected with above spray tube, is sterilized
It is connected with air blower on the right side of deodorizing case, filtering air draft is equipped on the left of the left side of dewatering and disinfecting case and disinfection and deodorization box
Mouthful, the internal activity of dewatering and disinfecting case and disinfection and deodorization box is connected with transmission device, is placed with collecting tank on the right side of transmission device.
Preferably, the drying device includes drying cylinder, the axis of rolling, helical-blade, spiral electric heating piece, and the outside of the axis of rolling is solid
Dingan County is equipped with helical-blade, and the inside of drying cylinder is fixedly installed with spiral electric heating piece, the shape of spiral electric heating piece just with helical-blade
It is adapted, effectively improves electric heating effect, be conducive to excrement drying effect.
Preferably, transmission device distribution up and down respectively, and the conveyer belt of transmission device is grid-shaped, convenient for consolidating in excrement
Liquid separation.
Preferably, the underside of the waterpipe is connected with outlet, and the pipeline of waterpipe is in connected state.
Preferably, the position of the air blower must not be lower than the position of atomizer bottom end, prevent air blower from influencing atomization
Spray head spray effect, the position for filtering exhaust outlet must not be higher than the position of ultraviolet sterilizer, realize thorough bactericidal effect.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of livestock and poultry farm excrement pretreatment units, have following beneficial
Effect:
1, the livestock and poultry farm excrement pretreatment unit passes through the axis of rolling in driving motor drive drying device, spiral
Leaf, helical-blade and spiral electric heating piece are cross-up, are conducive to the rapid draing of excrement, while heating, can kill part bacterium.
2, the livestock and poultry farm excrement pretreatment unit, excrement by the drying cylinder in drying device enter transmission device and
Dewatering and disinfecting case under the action of ultraviolet sterilizer in dewatering and disinfecting case, can kill most of mushroom, to reduce bacterium
Making full use of for the energy is realized in consumption to the energy.
3, the livestock and poultry farm excrement pretreatment unit, when excrement passes through disinfection and deodorization box, deodorant and disinfectant meeting
By valve, spray tube is flowed through, is sprayed eventually by atomizer, it, can be under the cooperation of air blower and filter exhaust outlet
The breeding for inhibiting mushroom and deodorizing effect are effectively realized, is handled convenient for secondary operation.
Detailed description of the invention
Fig. 1 is livestock and poultry farm excrement pretreatment unit planar structure schematic diagram of the present invention;
Fig. 2 is drying device planar structure schematic diagram of the present invention;
Fig. 3 is drying cylinder inner plane structural schematic diagram of the present invention.
In figure: 1- suction pipe, 2- feed hopper, 3- driving motor, 4- drying device, 4001- drying cylinder, the 4002- axis of rolling,
4003- helical-blade, 4004- spiral electric heating piece, 5- dewatering and disinfecting case, 6- transmission device, 7- sewage conduct, 8- outlet, 9- are purple
Outside line sterilizer, 10- disinfection and deodorization box, 11- outlet portal, 12- air blower, 13- valve, 14- spray tube, 15- atomizer,
16- collecting tank, 17- filter exhaust outlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-3, including suction pipe 1, suction pipe 1 under the influence of external forces, by the excrement of livestock and poultry farm
It picks up, the right side of suction pipe 1 is connected with feed hopper 2, and the lower section of feed hopper 2 is fixedly installed with drying device 4, drying device
4 include drying cylinder 4001, the axis of rolling 4002, helical-blade 4003, spiral electric heating piece 4004, and the outside of the axis of rolling 4002 is fixedly mounted
There is helical-blade 4003, the inside of drying cylinder 4001 is fixedly installed with spiral electric heating piece 4004, and the shape of spiral electric heating piece 4004 is rigid
It is good to be adapted with helical-blade 4003, electric heating effect is effectively improved, the fowl and animal excrement that can be passed through with flash baking, drying device
The left side of 4 drying cylinder 4001 is flexibly connected by the axis of rolling 4002 with driving motor 3, and product type can be used in driving motor 3
For Flame-Proof Three-Phase Induction Motors, model YBK2 series, number of poles is 4 poles, and rated power is 0.12~315kW, specified electricity
Pressure is 380/660V, 660/1140V, and revolving speed 1440rpm, the 3C range of nominal tension is exchange 1000V or more, drying device 4
Right side be fixedly installed with dewatering and disinfecting case 5, the top in dewatering and disinfecting case 5 is fixedly installed with ultraviolet sterilizer 9, is being dehydrated
Under the action of ultraviolet sterilizer 9 in sterilization box 5, most of mushroom can be killed, reduces the breeding of bacterium, improves later period excrement
The utilization rate of energy, the right of dewatering and disinfecting case 5 are connected with disinfection and deodorization box 10, dewatering and disinfecting case 5 and disinfection and deodorization box
10 bottom is connected with sewage conduct 7, and it is middle Australia that brand, which can be used, in sewage conduct 7, and use temperature range is -70 Celsius
- 140 degrees Celsius DEG C of degree, coefficient of friction 0.1, abrasion loss 0.01, impact strength 10000MPa, material is glass reinforced plastic, pipe
Road bore is 300-4000mm, duct thickness 3-50mm, and being applicable in fluid is sewage, clear water, buck, sour water, oil etc., water pipe
The underside in road 7 is connected with outlet 8, and the inner roof wall of disinfection and deodorization box 10 is connected with atomizer 15, atomizer
15 can be used material as stainless steel, and model taper, sector, installation approach are internal screw thread connection, and operating temperature is room temperature, work
Pressure is 3-7, and medium is liquid, and the scope of application is humidification, and the top of atomizer 15 is connected with spray tube 14, spray tube
14 can be used brand as matt, and use temperature range is -300 DEG C -+500 DEG C, coefficient of friction 0.865, abrasion loss 0.142,
Impact strength is 10.0MPa, and material is 304 stainless steels, and pipe diameter DN6-DN1500mm, duct thickness 10-25mm are applicable in
Fluid is that the top of water sprayer tube 14 is connected with valve 13, the disinfectant and deodorant of the external outside of valve 13, and excrement leads to
When crossing disinfection and deodorization box 10, deodorant and disinfectant can flow through spray tube 14, eventually by atomizer 15 by valve 13
It is sprayed, the right side of disinfection and deodorization box 10 is connected with air blower 12, and air blower 12 can be used that model is complete, and type is
High pressure blower, voltage 380, airflow direction are Clothoid type blower, and material is aluminium alloy, and blower pressure is high pressure blower, property
It can be resisting blower, purposes is pipeline fan, weight 90kg, the left side of dewatering and disinfecting case 5 and a left side for disinfection and deodorization box 10
Side is equipped with filtering exhaust outlet 17, under the cooperation of air blower 12 and filter exhaust outlet 17, can effectively realize and inhibit mushroom
Breeding and deodorizing effect are handled convenient for secondary operation, and the internal activity of dewatering and disinfecting case 5 and disinfection and deodorization box 10 is connected with transmission
Device 6, there are two transmission devices 6, completes respectively in the cleaning for one on the other, being conducive to excrement, the conveyer belt of transmission device 6 is set
It is set to latticed, convenient for the separation of solid and liquid of excrement, the right side of transmission device 6 is placed with collecting tank 16.
Working principle: under the influence of external forces, the excrement of livestock and poultry farm is picked up for suction pipe 1, the right side of suction pipe 1
Side is connected with feed hopper 2, and the lower section of feed hopper 2 is fixedly installed with drying device 4, and the inside of drying cylinder 4001 is fixedly mounted
There is spiral electric heating piece 4004, the shape of spiral electric heating piece 4004 is just adapted with helical-blade 4003, effectively improves electric heating
Effect, the fowl and animal excrement that can be passed through with flash baking, the fowl and animal excrement of drying pass through transmission device 6 into dewatering and disinfecting case 5, In
Under the action of ultraviolet sterilizer 9 in dewatering and disinfecting case 5, most of mushroom can be killed, reduces the breeding of bacterium, improves the later period
The utilization rate of fecal energy, then communicated device 6 are sent in disinfection and deodorization box 10, the disinfectant of the external outside of valve 13 and deodorization
Agent, when excrement passes through disinfection and deodorization box 10, deodorant and disinfectant can flow through spray tube 14 by valve 13, eventually by
Atomizer 15 carries out spray deodorant and disinfectant, can be effectively under the cooperation of air blower 12 and filter exhaust outlet 17
It realizes the breeding for inhibiting mushroom and deodorizing effect, is handled convenient for secondary operation, the excrement pre-processed is finally added to collection
Tank 16 is further processed.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of livestock and poultry farm excrement pretreatment unit, including suction pipe (1), it is characterised in that: the right side of the suction pipe (1)
Side is connected with feed hopper (2), is fixedly installed with below feed hopper (2) drying device (4), and drying device (4) includes dry
Dry cylinder (4001), the axis of rolling (4002), helical-blade (4003), spiral electric heating piece (4004), the drying cylinder of drying device (4)
(4001) left side is flexibly connected by the axis of rolling (4002) with driving motor (3), and drying device is fixedly installed on the right side of (4)
Dewatering and disinfecting case (5), the inner roof wall of dewatering and disinfecting case (5) are fixedly installed with ultraviolet sterilizer (9), dewatering and disinfecting case (5)
The right is connected with disinfection and deodorization box (10), and the bottom of dewatering and disinfecting case (5) and disinfection and deodorization box (10) is connected with
Sewage conduct (7), the inner roof wall of disinfection and deodorization box (10) are connected with atomizer (15), and the top of atomizer (15) is living
It is dynamic to be connected with spray tube (14), it is connected with above spray tube (14) valve (13), the right side of disinfection and deodorization box (10) is living
It is dynamic to be connected with air blower (12), filtering exhaust outlet is equipped on the left of the left side of dewatering and disinfecting case (5) and disinfection and deodorization box (10)
(17), the internal activity of dewatering and disinfecting case (5) and disinfection and deodorization box (10) is connected with transmission device (6), the right side of transmission device (6)
Side is placed with collecting tank (16).
2. a kind of livestock and poultry farm excrement pretreatment unit according to claim 1, it is characterised in that: the axis of rolling
(4002) it is fixedly installed with outside helical-blade (4003), the inside of drying cylinder (4001) is fixedly installed with spiral electric heating piece
(4004), the shape of spiral electric heating piece (4004) is adapted with helical-blade (4003).
3. a kind of livestock and poultry farm excrement pretreatment unit according to claim 1, it is characterised in that: the transmission device
(6) distribution up and down respectively, and the conveyer belt of transmission device (6) is grid-shaped.
4. a kind of livestock and poultry farm excrement pretreatment unit according to claim 1, it is characterised in that: the waterpipe
(7) underside is connected with outlet (8), and the pipeline of waterpipe (7) is in connected state.
5. a kind of livestock and poultry farm excrement pretreatment unit according to claim 1, it is characterised in that: the air blower
(12) position must not be lower than the position of atomizer (15) bottom end, and the position of filtering exhaust outlet (17) must not be killed higher than ultraviolet light
The position of bacterium device (9).
Priority Applications (1)
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CN201910796629.4A CN110407611A (en) | 2019-08-27 | 2019-08-27 | A kind of livestock and poultry farm excrement pretreatment unit |
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CN201910796629.4A CN110407611A (en) | 2019-08-27 | 2019-08-27 | A kind of livestock and poultry farm excrement pretreatment unit |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111499437A (en) * | 2020-05-13 | 2020-08-07 | 泰安市岱岳区泰峰农牧机械厂 | Kitchen waste treatment method and treatment machine thereof |
CN112645551A (en) * | 2020-11-18 | 2021-04-13 | 河南宏景建筑工程有限公司 | Community living excrement treatment method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN206235123U (en) * | 2016-11-29 | 2017-06-09 | 云南农业职业技术学院 | A kind of new chicken manure dryer |
CN107253867A (en) * | 2017-07-27 | 2017-10-17 | 安徽宽居电器有限公司 | A kind of Quick-type pig manure dehydration dryer |
CN206721006U (en) * | 2017-05-03 | 2017-12-08 | 陈悦 | A kind of livestock and poultry excrement treating device |
CN207646050U (en) * | 2017-11-22 | 2018-07-24 | 石家庄绿川生态农业开发有限公司 | A kind of odorless processor of excrement |
CN208604028U (en) * | 2018-05-18 | 2019-03-15 | 霍鑫 | A kind of animal waste recycling treatment equipment |
CN208743339U (en) * | 2018-07-20 | 2019-04-16 | 马边下溪镇青山莲畜禽养殖专业合作社 | A kind of waste remove device for farm |
-
2019
- 2019-08-27 CN CN201910796629.4A patent/CN110407611A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN206235123U (en) * | 2016-11-29 | 2017-06-09 | 云南农业职业技术学院 | A kind of new chicken manure dryer |
CN206721006U (en) * | 2017-05-03 | 2017-12-08 | 陈悦 | A kind of livestock and poultry excrement treating device |
CN107253867A (en) * | 2017-07-27 | 2017-10-17 | 安徽宽居电器有限公司 | A kind of Quick-type pig manure dehydration dryer |
CN207646050U (en) * | 2017-11-22 | 2018-07-24 | 石家庄绿川生态农业开发有限公司 | A kind of odorless processor of excrement |
CN208604028U (en) * | 2018-05-18 | 2019-03-15 | 霍鑫 | A kind of animal waste recycling treatment equipment |
CN208743339U (en) * | 2018-07-20 | 2019-04-16 | 马边下溪镇青山莲畜禽养殖专业合作社 | A kind of waste remove device for farm |
Non-Patent Citations (3)
Title |
---|
中国家具协会: "《家具设计师》", 30 November 2015, 中国轻工业出版社 * |
卓泽华: "《电焊机维修技术》", 31 October 1989, 石油工业出版社 * |
施力光: "《鸡场消毒防疫与疾病防制》", 31 January 2018, 河南科学技术出版社 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111499437A (en) * | 2020-05-13 | 2020-08-07 | 泰安市岱岳区泰峰农牧机械厂 | Kitchen waste treatment method and treatment machine thereof |
CN112645551A (en) * | 2020-11-18 | 2021-04-13 | 河南宏景建筑工程有限公司 | Community living excrement treatment method |
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Application publication date: 20191105 |