CN109758939B - Stirring port device of airtight storage pool - Google Patents
Stirring port device of airtight storage pool Download PDFInfo
- Publication number
- CN109758939B CN109758939B CN201910206371.8A CN201910206371A CN109758939B CN 109758939 B CN109758939 B CN 109758939B CN 201910206371 A CN201910206371 A CN 201910206371A CN 109758939 B CN109758939 B CN 109758939B
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- stirring
- bracket
- support
- rod
- tube
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- 238000003756 stirring Methods 0.000 title claims abstract description 68
- 238000007789 sealing Methods 0.000 claims description 11
- 238000013019 agitation Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 210000003608 fece Anatomy 0.000 abstract description 23
- 239000010871 livestock manure Substances 0.000 abstract description 23
- 239000007788 liquid Substances 0.000 abstract description 20
- 238000005452 bending Methods 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract description 4
- 238000001556 precipitation Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 6
- 230000032258 transport Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000037208 balanced nutrition Effects 0.000 description 1
- 235000019046 balanced nutrition Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000006194 liquid suspension Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
Landscapes
- Mixers Of The Rotary Stirring Type (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a stirring port device of a closed storage pool, which comprises a bracket and a stirring port, wherein a pipeline is arranged in the bracket in a matched manner, a suction port pipe and a stirring pipe are respectively arranged at two ends of the pipeline, a first hydraulic rod is arranged between a bending position of the bracket and a hack lever at one end of the bracket, a rotating shaft is arranged between the hack lever and the bracket and can drive the bracket to rotate, an outer frame is welded at one end of the bracket, universal wheels are arranged at the bottom end of the outer frame, the stirring pipe is enclosed by the outer frame and is welded and fixed, a screw rod is arranged in the stirring pipe, the screw rod and a triangular stirring rod are arranged, and simultaneously, the screw rod conveys solid-liquid mixed manure into the stirring pipe for pumping output, so that the problem of dirty precipitation of the manure in the storage pool is solved, the storage pool capacity is not reduced, the service cycle is prolonged, and the treatment investment of the manure in pasture is saved.
Description
Technical Field
The invention relates to the field of stirring ports of closed storage tanks, in particular to a stirring port device of a closed storage tank.
Background
The sealed storage pool is mainly used for storing liquid manure in farms, and has a storage capacity of 6000-10000 cubic units, and a storage cost of 100-150 ten thousand yuan. Because the excrement is easy to precipitate, the capacity of the storage pool is reduced, and the capacity of the original storage pool is reduced by 50% in three years.
The prior art of the sealed bag type liquid manure storage tank is characterized in that the problem of homogenization during manure returning is solved, when the original design is not used for stirring, the solid manure in the manure is partially sunk to the bottom of the tank and cannot be output, and most of the solid manure is liquid during returning, so that nutrition is unbalanced and fertilizer efficiency is not obvious.
Disclosure of Invention
The invention mainly aims to provide a stirring port device of a closed storage pool, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides a airtight storage pond stirring mouth device, includes support and stirring mouth, the inside of support is supporting installs the pipeline, and the both ends of pipeline are provided with suction inlet pipe and stirred tube respectively, install first hydraulic stem between the hack lever of tortuous position to support one end of support to set up the pivot between hack lever and support, can drive the support and rotate, support one end welding has the outer frame, and the universal wheel is installed to the bottom of outer frame, the outer frame encloses stirred tube to welded fastening, install the hob in the stirred tube, the surface mounting of stirred tube one side pipeline has the motor, and one side that stirred tube and hob axial direction are parallel is equipped with the arcwall tube, the hose is installed to the exit end of arcwall tube,
The stirring port comprises a sealing bag, an upright post and a cross rod, wherein a rewinding device and a hanging wheel are respectively arranged at the middle part and the top end of the upright post, the hanging wheel is connected with the cross rod through a rope, and the cross rod is wrapped and welded on one side of the sealing bag.
Preferably, the output end of the motor and one end of the screw rod are both welded with gears, and the gears at the two positions are mutually meshed in the transverse direction and the longitudinal direction.
Preferably, one end of the screw rod extending out of the stirring pipe is fixedly provided with a triangular stirring rod through a bolt, stirring blades of the triangular stirring rod are triangular conical, an embedded block is welded at the position of the triangular stirring rod, and the embedded block is embedded into the screw rod in a movable mode.
Preferably, a second hydraulic rod is installed between one side of the arc-shaped pipe and the bottom end of the hose, and the hose and the second hydraulic rod are parallel to each other.
Preferably, a PLC control device is installed on one side of the support, and the first hydraulic rod and the second hydraulic rod are electrically connected with the PLC control device.
Compared with the prior art, the invention has the following beneficial effects:
1. Through setting up hob and triangle puddler, the triangle puddler breaks up stirring with the solid manure example part of septic tank bottom, and the hob transports the excrement liquid of solid-liquid mixture to the stirred tank in simultaneously, and the pump output of being convenient for solves the dirty sediment problem of excrement in the storage pond, guarantees that the storage pond capacity does not reduce, improves life cycle, practices thrift pasture excrement processing input.
2. By arranging the first hydraulic rod and the second hydraulic rod, the first hydraulic rod stretches out and draws back to control the depth of the bracket entering the storage pool, the second hydraulic rod stretches out and draws back to adjust the opening angle of the hose, and the light manure suspension and liquid manure liquid after being pumped and stirred enter the hose;
3. Through setting up the stirring mouth, be convenient for open an opening in storage pond, put into the storage pond with a part of support and carry out the excrement liquid and return the field work, let the sealed bag on the horizontal pole rise and descend through rewinding unit and hanging wheel, make the storage pond airtight and open, improved the convenience of returning the field work.
Drawings
FIG. 1 is a schematic plan view of a bracket of a closed storage pool agitation inlet apparatus of the present invention;
FIG. 2 is a schematic diagram of the operation of a stirring port device of a closed storage tank according to the present invention;
FIG. 3 is a partial top view of a stirring tube of a sealed storage pool stirring port device according to the present invention;
Fig. 4 is a partial structural elevation view of a stirring tube of a sealed storage pool stirring port device of the present invention.
In the figure: 1. a bracket; 2. a first hydraulic lever; 3. a PLC control device; 4. a suction port tube; 5. a pipe; 6. a universal wheel; 7. an outer frame; 8. a hose; 9. an arc tube; 10. a second hydraulic lever; 11. a stirring tube; 12. sealing the bag; 13. a rewinding device; 14. a column; 15. hanging wheels; 16. a cross bar; 17. a motor; 18. a screw rod; 19. triangular stirring rod; 191. an embedded block; 20. a gear.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in figures 1-4, a stirring port device of a closed storage pool comprises a bracket 1 and a stirring port, wherein a pipeline 5 is arranged in the bracket 1 in a matched manner, a suction port pipe 4 and a stirring pipe 11 are respectively arranged at two ends of the pipeline 5, a first hydraulic rod 2 is arranged between a bending position of the bracket 1 and a hack lever at one end of the bracket 1, a rotating shaft is arranged between the hack lever and the bracket 1 and can drive the bracket 1 to rotate, an outer frame 7 is welded at one end of the bracket 1, a universal wheel 6 is arranged at the bottom end of the outer frame 7, the stirring pipe 11 is enclosed and welded and fixed, a screw rod 18 is arranged in the stirring pipe 11, a motor 17 is arranged on the surface of the pipeline 5 at one side of the stirring pipe 11, an arc pipe 9 is arranged at one side of the stirring pipe 11 axially parallel to the screw rod 18, a hose 8 is arranged at the outlet end of the arc pipe 9,
The stirring port comprises a sealing bag 12, a stand column 14 and a cross rod 16, wherein a rewinding device 13 and a hanging wheel 15 are respectively arranged at the middle part and the top end of the stand column 14, the hanging wheel 15 is connected with the cross rod 16 through a rope, and the cross rod 16 is wrapped and welded by one side of the sealing bag 12.
As shown in fig. 4, the output end of the motor 17 and one end of the screw 18 are both welded with gears 20, and the gears 20 at both positions are engaged with each other in the lateral and longitudinal directions.
As shown in fig. 3, one end of the screw rod 18 extending out of the stirring tube 11 is fixed with a triangular stirring rod 19 through a bolt, stirring blades of the triangular stirring rod 19 are triangular conical, an embedded block 191 is welded at a position where one end of the triangular stirring rod 19 is triangular, and the embedded block 191 is embedded into the screw rod 18 to be movably connected.
As shown in fig. 1, a second hydraulic rod 10 is installed between one side of the arc-shaped pipe 9 and the bottom end of the hose 8, and the hose 8 and the second hydraulic rod 10 are parallel to each other.
As shown in fig. 1-2, a PLC control device 3 is installed on one side of the support 1, and the first hydraulic rod 2 and the second hydraulic rod 10 are electrically connected with the PLC control device 3, the PLC control device 3 plays a role in manual control, the first hydraulic rod 2 stretches and contracts to control the depth of the support 1 entering a storage tank, the second hydraulic rod 10 stretches and contracts to adjust the opening angle of the hose 8, and the light manure suspension and liquid manure liquid after being pumped and stirred enter the hose 8.
Through the technical scheme, the screw rod 18 and the triangular stirring rod 19 are arranged, the triangular stirring rod 19 breaks up and stirs the solid manure part at the bottom of the manure pit, meanwhile, the screw rod 18 conveys the solid-liquid mixed manure into the stirring pipe 11, so that pumping output is facilitated, the problem of manure precipitation in a storage pool is solved, the capacity of the storage pool is not reduced, the service cycle is improved, the pasture manure treatment investment is saved, and the closed storage pool can normally operate in winter by adopting a mode of injecting from the bottom; meanwhile, after the technology is improved, certain low-jing flow operation exists in the manure, and the smaller the runoff is, the better the anaerobic environment is, so that the manure is naturally fermented; the operation can be normally performed before sowing in spring, and the operation time is 15 days earlier than the operation time after the original storage pool is thawed.
Example 2
As shown in figures 1-4, a stirring port device of a closed storage pool comprises a bracket 1 and a stirring port, wherein a pipeline 5 is arranged in the bracket 1 in a matched manner, a suction port pipe 4 and a stirring pipe 11 are respectively arranged at two ends of the pipeline 5, a first hydraulic rod 2 is arranged between a bending position of the bracket 1 and a hack lever at one end of the bracket 1, a rotating shaft is arranged between the hack lever and the bracket 1 and can drive the bracket 1 to rotate, an outer frame 7 is welded at one end of the bracket 1, a universal wheel 6 is arranged at the bottom end of the outer frame 7, the stirring pipe 11 is enclosed and welded and fixed, a screw rod 18 is arranged in the stirring pipe 11, a motor 17 is arranged on the surface of the pipeline 5 at one side of the stirring pipe 11, an arc pipe 9 is arranged at one side of the stirring pipe 11 axially parallel to the screw rod 18, a hose 8 is arranged at the outlet end of the arc pipe 9,
As shown in fig. 2, the stirring port comprises a sealing bag 12, a stand column 14 and a cross rod 16, wherein a rewinding device 13 and a hanging wheel 15 are respectively arranged at the middle part and the top end of the stand column 14, the hanging wheel 15 is connected with the cross rod 16 through a rope, the cross rod 16 is wrapped and welded on one side of the sealing bag 12, galvanized thick-wall steel is used for the stand column 14 and the cross rod 16 of the stirring port, corrosion resistance is achieved, and the specification of the stirring port is as follows: the width is 3 meters, the height is 2.2 meters, the reinforcement depth is 4 meters, and the supporting and reinforcing functions of the strong wind weather are fully considered in the steel installation mode.
Through foretell technical scheme, set up the stirring mouth, be convenient for open an opening of storage pond, put into the storage pond with a part of support 1 and carry out the excrement liquid and return the field work, drive the rope through rewinding unit 13 and hanging wheel 15, rise and descend the sealed bag 12 on the horizontal pole 16, make the storage pond airtight and open, improved the convenience of returning the field work.
It is to be noted that the invention is a sealed storage pool stirring port device, firstly, a bracket 1 is moved to the side of the stirring port of a storage pool, a rewinding device 13 is rotated, a rope lifts a sealing bag 12 on a cross rod 16 through a hanging wheel 15, the sealing bag is opened to a certain angle, an outer frame 7 of the bracket 1 is convenient to enter the storage pool from a bending position part of the bracket 1, a first hydraulic rod 2 is stretched or shortened by manually controlling a PLC control device 3, the depth of the bracket 1 entering the storage pool is adjusted, the bracket 1 is prevented from being suspended due to a universal wheel 6, a suction port pipe 4 is externally connected with a vacuum pump for pumping, a motor 17 is a submersible motor, the model is UWM1, a spiral rod 18 and a triangular stirring rod 19 are driven to rotate through a gear 20, the rotation direction is the direction that enables the hob 18 to transport the excrement liquid after stirring into agitator tube 11, triangle puddler 19 breaks up the stirring with the solid excrement of manure pit bottom in the portion, simultaneously hob 18 transports the excrement liquid of solid-liquid mixture into agitator tube 11 in, be convenient for pump output, simultaneously because under the pumping of vacuum pressure, hose 8 is located directly over the agitator tube 11, accessible manual control PLC controlling means 3, make the flexible opening angle of adjusting hose 8 of second hydraulic stem 10, be convenient for suction after the stirring lighter excrement liquid suspension and liquid excrement liquid enter into hose 8, finally, the excrement is through the pump when returning to the field, solid and liquid part can intensive mixing in the excrement thick liquid, guarantee the balanced nutrition in the manure, improve the fertilizer efficiency of using.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a airtight storage pond stirring mouth device, includes support (1) and stirring mouth, its characterized in that: the inside of support (1) is supporting installs pipeline (5), and the both ends of pipeline (5) are provided with suction inlet pipe (4) and churning tube (11) respectively, install first hydraulic stem (2) between the hack lever of tortuous position to support (1) one end of support (1) to set up the pivot between hack lever and support (1), can drive support (1) rotation, support (1) one end welding has outer frame (7), and universal wheel (6) are installed to the bottom of outer frame (7), outer frame (7) encloses churning tube (11) to welded fastening, install hob (18) in churning tube (11), surface mounting of churning tube (11) one side pipeline (5) has motor (17), the one end that hob (18) extends to outside churning tube (11) is fixed with triangle puddler (19) through the bolt, and the stirring leaf of triangle puddler (19) is the triangle toper, the position department welding that the one end of triangle (19) is the triangle has embedded block (191), and embedded block (191) are equipped with flexible pipe (8) and one side of arc tube (8) parallel to the interior of flexible pipe (9), a second hydraulic rod (10) is arranged between one side of the arc-shaped pipe (9) and the bottom end of the hose (8), and the hose (8) and the second hydraulic rod (10) are mutually parallel;
The stirring port comprises a sealing bag (12), an upright post (14) and a cross rod (16), wherein a rewinding device (13) and a hanging wheel (15) are respectively arranged at the middle part and the top end of the upright post (14), the hanging wheel (15) is connected with the cross rod (16) through a rope, and one side of the sealing bag (12) wraps and welds the cross rod (16).
2. The sealed storage pool agitation enclosure apparatus of claim 1 wherein: the output end of the motor (17) and one end of the screw rod (18) are welded with gears (20), and the gears (20) at the two positions are mutually meshed in the transverse direction and the longitudinal direction.
3. The sealed storage pool agitation enclosure apparatus of claim 1 wherein: one side of the support (1) is provided with a PLC control device (3), and the first hydraulic rod (2) and the second hydraulic rod (10) are electrically connected with the PLC control device (3).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910206371.8A CN109758939B (en) | 2019-03-19 | 2019-03-19 | Stirring port device of airtight storage pool |
Applications Claiming Priority (1)
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CN201910206371.8A CN109758939B (en) | 2019-03-19 | 2019-03-19 | Stirring port device of airtight storage pool |
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CN109758939A CN109758939A (en) | 2019-05-17 |
CN109758939B true CN109758939B (en) | 2024-05-14 |
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CN201910206371.8A Active CN109758939B (en) | 2019-03-19 | 2019-03-19 | Stirring port device of airtight storage pool |
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1062193A (en) * | 1963-05-20 | 1967-03-15 | Bauer Rudolf | Mixing and conveying pump |
JP2005074351A (en) * | 2003-09-02 | 2005-03-24 | Hayashida Tekko:Kk | Kneader |
CN204918587U (en) * | 2015-08-27 | 2015-12-30 | 赤峰中农大生化科技有限责任公司 | Solid state fermentation jar |
CN206061669U (en) * | 2016-09-09 | 2017-04-05 | 长兴馨芳园农业发展有限公司 | A kind of new light modulation heat-insulating greenhouse booth |
CN206308241U (en) * | 2016-12-29 | 2017-07-07 | 黑龙江先阳农业科技有限公司 | A kind of new frigid zone herding excrement dirt fermentation vat |
CN107060784A (en) * | 2017-05-08 | 2017-08-18 | 中铁工程装备集团有限公司 | Suitable for the muddy water agitating device of rock tunnel(ling) machine |
CN207391028U (en) * | 2017-09-14 | 2018-05-22 | 常州金杉环保科技有限公司 | A kind of fecal treatment equipment |
CN108264212A (en) * | 2018-04-03 | 2018-07-10 | 北京京鹏环宇畜牧科技股份有限公司 | The shared excrement solid-liquid isolation integral system of livestock and poultry farm |
CN108421436A (en) * | 2018-04-23 | 2018-08-21 | 平湖市超越时空图文设计有限公司 | A kind of novel removable blender |
CN209848715U (en) * | 2019-03-19 | 2019-12-27 | 哈尔滨丹青农业科技股份有限公司 | Stirring port device for closed storage pool |
-
2019
- 2019-03-19 CN CN201910206371.8A patent/CN109758939B/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1062193A (en) * | 1963-05-20 | 1967-03-15 | Bauer Rudolf | Mixing and conveying pump |
JP2005074351A (en) * | 2003-09-02 | 2005-03-24 | Hayashida Tekko:Kk | Kneader |
CN204918587U (en) * | 2015-08-27 | 2015-12-30 | 赤峰中农大生化科技有限责任公司 | Solid state fermentation jar |
CN206061669U (en) * | 2016-09-09 | 2017-04-05 | 长兴馨芳园农业发展有限公司 | A kind of new light modulation heat-insulating greenhouse booth |
CN206308241U (en) * | 2016-12-29 | 2017-07-07 | 黑龙江先阳农业科技有限公司 | A kind of new frigid zone herding excrement dirt fermentation vat |
CN107060784A (en) * | 2017-05-08 | 2017-08-18 | 中铁工程装备集团有限公司 | Suitable for the muddy water agitating device of rock tunnel(ling) machine |
CN207391028U (en) * | 2017-09-14 | 2018-05-22 | 常州金杉环保科技有限公司 | A kind of fecal treatment equipment |
CN108264212A (en) * | 2018-04-03 | 2018-07-10 | 北京京鹏环宇畜牧科技股份有限公司 | The shared excrement solid-liquid isolation integral system of livestock and poultry farm |
CN108421436A (en) * | 2018-04-23 | 2018-08-21 | 平湖市超越时空图文设计有限公司 | A kind of novel removable blender |
CN209848715U (en) * | 2019-03-19 | 2019-12-27 | 哈尔滨丹青农业科技股份有限公司 | Stirring port device for closed storage pool |
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