CN107114048B - Biogas slurry dark irrigation fertilizer distributor - Google Patents
Biogas slurry dark irrigation fertilizer distributor Download PDFInfo
- Publication number
- CN107114048B CN107114048B CN201710338042.XA CN201710338042A CN107114048B CN 107114048 B CN107114048 B CN 107114048B CN 201710338042 A CN201710338042 A CN 201710338042A CN 107114048 B CN107114048 B CN 107114048B
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- fertilizer
- liquid fertilizer
- power shaft
- biogas slurry
- cylindrical shell
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/001—Sludge spreaders, e.g. liquid manure spreaders
- A01C23/002—Sludge spreaders, e.g. liquid manure spreaders provided with auxiliary arrangements, e.g. pumps, agitators, cutters
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/04—Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids
- A01C23/042—Adding fertiliser to watering systems
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/062—Devices for making drills or furrows
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/066—Devices for covering drills or furrows
Abstract
The invention relates to a biogas slurry dark irrigation fertilizer applicator which comprises a chassis device, a fertilizer storage device, a liquid fertilizer distribution device and a ditching, earthing and broadcasting device; the ditching earthing broadcast application device comprises a bracket and a plurality of coulters, wherein the bracket is hung on the chassis device, and an earthing device is arranged behind the coulters; the liquid fertilizer distribution device is positioned above the ditching earthing spreading device and consists of a stirrer, a distribution cylinder, a circular groove formed in the bottom of the distribution cylinder and a plurality of second liquid fertilizer outlets arranged at intervals along the circular groove; each second liquid fertilizer outlet is connected with a fertilizer delivery hose, and the outlet of the fertilizer delivery hose is positioned at the tail part of the coulter; the stirrer comprises a power shaft vertically installed in the distribution cylinder body and a plurality of stirring blades installed on the power shaft, and the tail ends of the stirring blades extend into the annular grooves. The biogas slurry dark irrigation fertilizer applicator has a simple and compact structure, and can continuously and stably output liquid fertilizer.
Description
Technical Field
The invention relates to a biogas slurry dark irrigation fertilizer applicator, and belongs to the technical field of agricultural machinery.
Background
Along with recycling of rural waste, biogas slurry and biogas residue treatment has become a trend, wherein the biogas slurry can be used as fertilizer, and the water quality characteristic of the biogas slurry enables crops to absorb very fast, so that the biogas slurry has quick-acting property and slow-acting property. Researches show that the normal Shi Zhao liquid has strong crop growth, obviously increased leaf thickness and fruit weight, obviously improved quality, and can improve the yield by about 15-35%, and the average height of soluble sugar is 36%; has special effects on crop hypocrenia, such as lobular disease; meanwhile, the cold resistance physiology is improved, the frost resistance is improved, and the fertilizer is called as 'king in fertilizer', and is the best fertilizer for producing pollution-free green and high-grade organic foods, which has the most balanced nutrition for crops in the world at present.
Biogas slurry is used as a fertilizer in China, at present, the biogas slurry is mainly subjected to manual irrigation or simple spraying machinery, in actual work, the biogas slurry directly used in farmlands is subjected to pretreatment, then is manually picked up to the heads of the farmlands for throwing, and is matched with an irrigation system for fertilizer irrigation or simple machinery for field throwing, so that the irrigation system which cannot be popularized is influenced by factors such as high labor intensity, low working efficiency, high cost and the like is faced, in addition, ammonia volatilization is more in the application process, nitrogen absorption is reduced, certain pollution is caused to the environment, and in the face of such circumstances, the research on how to continuously and stably and smoothly feed the liquid fertilizer into the fields and reduce the volatilization of ammonia becomes an important link in the broadcast process.
Disclosure of Invention
The invention aims at: overcomes the defects of the prior art and provides a biogas slurry dark irrigation fertilizer applicator which can reduce labor intensity, improve working efficiency and avoid environmental pollution.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a biogas slurry dark irrigation fertilizer applicator comprises a chassis device, a fertilizer storage device, a liquid fertilizer distribution device and a ditching, earthing and spreading device; the ditching earthing spreading device comprises a bracket hung at the rear end of the chassis device and a plurality of coulters arranged on the bracket, and the rear parts of the coulters are provided with earthing devices arranged in pairs, and the earthing devices are fixed on the bracket; the liquid fertilizer distribution device is positioned above the ditching earthing spreading device and consists of a stirrer, a distribution cylinder body which is fixed on the bracket and provided with a second liquid fertilizer inlet, annular grooves formed in the bottom of the distribution cylinder body and a plurality of second liquid fertilizer outlets which are arranged at intervals along the annular grooves, and the number of the second liquid fertilizer outlets is matched with that of the coulters; the second liquid fertilizer inlets are communicated with the first liquid fertilizer outlets, each second liquid fertilizer outlet is connected with a fertilizer conveying hose, and the outlet of each fertilizer conveying hose is positioned at the tail part of the coulter; the stirrer comprises a power shaft vertically arranged in the distribution cylinder body and a plurality of stirring blades arranged on the power shaft, wherein the power shaft extends along the axis of the circular groove, the front ends of the stirring blades are fixed on the power shaft, and the tail ends of the stirring blades extend into the circular groove and rotate along the circular groove when the power shaft rotates.
The stirring blade can be a segmented linear blade or the like, and the stirring blade is preferably an arc stirring blade, so that the stirring blade is simple to manufacture and reliable to use.
The invention is usually hung on a tractor for operation, and in the operation process, air in a sealed fertilizer storage tank body is pumped by a vacuum pump to form negative pressure, and biogas slurry is pressed into the fertilizer storage tank body by utilizing the atmospheric pressure outside the tank body through a sewage suction pipe. When the biogas slurry is discharged, the vacuum pump presses the outside atmosphere of the fertilizer storage tank into the fertilizer storage tank, and the biogas slurry is discharged into the distribution cylinder by utilizing air pressure. After the liquid fertilizer is input into the distribution cylinder, the stirring blades are driven by the power shaft to rotate along the annular grooves so as to break the liquid fertilizer outlet surface, so that the liquid fertilizer can smoothly flow out along the liquid fertilizer outlet, and crops can be dark irrigated through the conveying hose.
According to the ditching and earthing broadcast application device, the coulter is ditched under the traction of the tractor, liquid fertilizer flowing out along the fertilizer conveying hose is input into the ditches, and meanwhile, the earthing device behind the coulter is used for earthing along a ditching line, so that the liquid fertilizer can be continuously and stably subjected to dark irrigation, and volatilization of ammonia gas is reduced. The common earth covering device can be adopted, and the V-shaped earth covering device is preferably adopted, namely the earth covering device is in a V shape as a whole.
In addition, the rotation of the stirring blades along the annular grooves prevents the liquid fertilizer outlet from being blocked by residual biogas residues, scraps and the like in the liquid fertilizer of the biogas slurry, so that the fertilization efficiency is improved. Simultaneously, stir liquid fertilizer through the rotational speed of the stirring vane who sets up in the distribution tank body to can be according to liquid fertilizer inflow rate, outflow rate and distribution tank body volume, adjust suitable rotational speed, can guarantee the homogeneity and the sufficiency of liquid fertilizer in stirring process like this, thereby realize liquid fertilizer even, abundant output, simple structure, reasonable in design, in stirring process moreover, stirring vane's end rotates along the annular recess, avoided collision and friction, improved life.
The further improvement of the technical scheme is as follows: the shank of the coulter is provided with the clamping ring which can be used for the fertilizer delivery hose to pass through and is used for adjusting the pipe diameter of the fertilizer delivery hose, and the pipe diameter of the fertilizer delivery hose can reflect the tightness of the hose, so that the biogas slurry fertilizer amount can be controlled when the fertilizer applicator is used for dark irrigation.
The technical scheme is still further improved as follows: the stirrer further comprises a lower cylindrical shell and an upper cylindrical shell, wherein the lower cylindrical shell is sleeved on the power shaft and fixedly connected with the power shaft, the upper cylindrical shell is tightly sleeved on the lower cylindrical shell, a first U-shaped groove with a downward opening is formed in the upper cylindrical shell, a second U-shaped groove with an upward opening and corresponding to the first U-shaped groove is formed in the lower cylindrical shell, rectangular slotted holes are formed by combining the first U-shaped groove with the second U-shaped groove, the number of the rectangular slotted holes is the same as that of stirring blades, and the front ends of the stirring blades are inserted into the rectangular slotted holes and fixed on the lower cylindrical shell. Therefore, when the stirring vane is damaged, the upper cylindrical shell can be detached for maintenance, namely, the maintenance is convenient.
Preferably, the fertilizer storage tank body is in a middle cylinder two-head hemispherical shape, a saddle-shaped base corresponding to the fertilizer storage tank body is arranged on the chassis device, the fertilizer storage tank body is fixed on the base, and a first liquid fertilizer outlet and a first liquid fertilizer inlet of the fertilizer storage tank body are both provided with connecting flanges.
Preferably, the axis of the distributing cylinder body coincides with the axis of the annular groove, and the power shaft is mounted at the bottom of the distributing cylinder body through a bearing.
Preferably, the second liquid fertilizer outlet is a round hole-shaped outlet, and the axis of the round hole-shaped outlet passes through the circular groove.
Preferably, an end cover is arranged at the top of the distribution cylinder body, and the second liquid fertilizer inlet is arranged at the center of the end cover.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic structural diagram of a liquid fertilizer distributing device according to an embodiment of the present invention.
Fig. 5 is a second schematic structural diagram of a liquid fertilizer distributing device according to an embodiment of the present invention.
Fig. 6 is a schematic view of the structure of the stirrer in fig. 5.
Fig. 7 is a cross-sectional view of fig. 6.
Fig. 8 is a top view of fig. 6.
Fig. 9 is a schematic view of a ditching, earthing and broadcasting device in an embodiment of the invention.
Fig. 10 is a schematic view of a saddle mount in an embodiment of the invention.
Reference numerals: tractor 1, chassis device 2, fertilizer storage device 3, liquid fertilizer distribution device 4, ditching earthing and broadcasting device 5, front land wheel 2-1, rear land wheel 2-2, cantilever 2-3, vertical welding component 2-4, arc arched bridge 2-5, girder 2-6, saddle base 2-7, crossbeam 2-8, bottom plate 2-9, fertilizer storage tank 3-1, fertilizer suction pipe 3-2, flange 3-3, pipeline 4-1, fertilizer delivery hose 4-2, four claw-shaped support 4-3, second liquid fertilizer inlet 4-4, distribution cylinder 4-5, power shaft 4-6, bearing frame 4-7, stirring blade 4-8, sleeve 4-9, upper cylindrical shell 4-10, reinforcing plate 4-11, bearing 4-12, circular ring-shaped groove 4-13, second liquid fertilizer outlet 4-14, lower cylindrical shell 4-15, rectangle 4-16, left earthing device 5-1, plough 5-2, earthing device 5-3, right earthing device 4-5, clasp 6, slotted hole clamp ring 5-5.
Detailed Description
Example 1
As shown in fig. 1 to 3, the biogas slurry dark-irrigation fertilizer applicator of the embodiment comprises a chassis device 2, a fertilizer storage device 3, a liquid fertilizer distribution device 4 and a ditching and soil covering and spreading device 5.
The chassis device 2 is connected to the tractor 1 through three-point suspension, a frame is formed by a main beam 2-6, a cross beam 2-8 and the like in the chassis device 2, a saddle-shaped base 2-7 is fixed on the frame, and the shape and the structure of the saddle-shaped base 2-7 are shown in figure 10. The bottom of the chassis device 2 is provided with a front land wheel 2-1 and a rear land wheel 2-2.
The fertilizer storage device 3 comprises a fertilizer storage tank body 3-1 arranged on the chassis device 2, a first liquid fertilizer inlet and a first liquid fertilizer outlet which are arranged on the fertilizer storage tank body 3-1, wherein the fertilizer storage tank body 3-1 is in a shape of a hemispherical at two ends of a middle cylinder, and is fixed and limited through at least two saddle-shaped bases 2-7 on the chassis device 2, namely, the spherical surface of the fertilizer storage tank body 3-1 is identical with the saddle surface of the saddle-shaped bases 2-7. The first liquid fertilizer outlet and the first liquid fertilizer inlet of the fertilizer storage tank body 3-1 are respectively provided with a connecting flange 3-3, and the corresponding fertilizer delivery pipelines are connected through the flanges 3-3, namely, as shown in fig. 3, the first liquid fertilizer inlet is connected with a fertilizer suction pipe 3-2, and the first liquid fertilizer outlet at the tail part is connected to a liquid fertilizer distribution device 4 through a pipeline 4-1.
As shown in fig. 2, 3 and 9, the ditching and soil-covering spreading device 5 comprises a bracket 5-5 hung at the rear end of the chassis device 2 and a plurality of coulters 5-2 arranged on the bracket 5-5, a four-claw-shaped bracket 4-3 is welded on the bracket 5-5 along the center, a pair of soil-covering devices (comprising a left soil-covering device 5-1 and a right soil-covering device 5-4) are arranged behind the coulters 5-2, the soil-covering devices are fixed on the bracket 5-5 through a soil-covering device welding plate 5-3, and the ditching and soil-covering spreading device 5 is hung at the rear end of the frame. The left and right earth-covering devices 5-1 and 5-5 are preferably V-shaped earth-covering devices, although other commonly used earth-covering devices may be used.
As shown in fig. 4 and 5, the liquid fertilizer distribution device 4 is located above the ditching and soil covering and spreading device 5, the liquid fertilizer distribution device 4 is composed of a stirrer, a distribution cylinder 4-5 fixed on a bracket 5-5 and provided with a second liquid fertilizer inlet 4-4, a circular groove 4-13 arranged at the bottom of the distribution cylinder 4-5, and a plurality of second liquid fertilizer outlets 4-14 arranged at intervals along the circular groove 4-13, and the number of the second liquid fertilizer outlets 4-14 is matched with that of the coulters 5-2; the second liquid fertilizer inlets 4-4 are communicated with the first liquid fertilizer outlets, each second liquid fertilizer outlet 4-14 is connected with a fertilizer conveying hose 4-2, and the outlet of each fertilizer conveying hose 4-2 is positioned at the tail of the coulter 5-2.
As shown in fig. 6 to 8, the agitator includes a power shaft 4-6 vertically installed in a distribution cylinder 4-5 and a plurality of agitating blades 4-8 installed on the power shaft 4-6, the power shaft 4-6 extending along the axis of the circular groove 4-13, the front end of the agitating blade 4-8 being fixed to a power shaft 4-16, the tip of the agitating blade 4-16 extending into the circular groove 4-13 and rotating along the circular groove 4-13 when the power shaft 4-16 rotates.
In the working process of the embodiment, the tractor 1 is used for traction, biogas slurry is pumped out of the air in the fertilizer storage tank body 3-1 through the vacuum pump to form negative pressure, the biogas slurry is injected into the fertilizer storage tank body 3-1 through the fertilizer suction pipe 3-2, then the vacuum pump is used for pumping the outside atmosphere into the tank, the biogas slurry is conveyed into the liquid fertilizer distribution device 4 through the pipeline 4-1 by utilizing the air pressure, the stirrer rotates along the annular groove 4-13 at a proper speed in the liquid fertilizer distribution device 4, the liquid fertilizer stably and continuously flows into a ditch opened in advance from the liquid fertilizer outlet 4-14 of the distributor along the hose 4-2, the coulter 5-2 ditches along the advancing direction, and the liquid fertilizer is covered after being filled in a dark mode.
As a preferred scheme, the distributing tank body 4-5 is a cylindrical tank body, the axis of the annular groove 4-13 coincides with the axis of the cylindrical tank body, the bearing seat 4-7 is arranged at the bottom of the distributing tank body 4-5, the power shaft 4-6 is arranged at the bottom of the tank body 4-5 through the matching of the bearing 4-12 and the bearing seat 4-7, the reinforcing plate 4-11 is arranged at the position of the bearing seat 4-7 arranged at the bottom of the tank body 4-5, and the reinforcing plate 4-11 is provided with a fixing hole and is fixed at the bottom of the tank body 4-5 through a bolt for reinforcing the strength of the bottom of the tank body 4-5.
In addition, the stirring blade can adopt segmented linear blades and the like, and the embodiment is preferably an arc stirring blade, so that the stirring blade is simple in manufacture and reliable in use.
The present embodiment can also be modified as follows:
1) The shank of the coulter 5-2 is provided with a clamping ring 5-6 which can be used for the fertilizer delivery hose 4-2 to pass through and is used for adjusting the pipe diameter of the fertilizer delivery hose 4-2, and the pipe diameter of the fertilizer delivery hose 4-2 can be reacted to the tightness of the fertilizer delivery hose 4-2, so that the biogas slurry fertilizer amount can be controlled during the dark irrigation of the fertilizer applicator. The clamping ring 5-6 can be a circular ring or a plurality of forms such as a throat hoop.
2) The stirrer further comprises a lower cylindrical shell 4-15 and an upper cylindrical shell 4-10, wherein the lower cylindrical shell 4-15 is sleeved on the power shaft 4-6 and fixedly connected with the power shaft 4-6, the upper cylindrical shell 4-10 is tightly sleeved on the lower cylindrical shell 4-15, a first U-shaped groove which is downwards opened is formed in the upper cylindrical shell 4-10, a second U-shaped groove which is upwards opened and corresponds to the first U-shaped groove in position is formed in the lower cylindrical shell 4-15, rectangular slotted holes 4-16 are formed by combining the first U-shaped groove and the second U-shaped groove, the number of the rectangular slotted holes 4-16 is the same as that of the stirring blades 4-8, and the front ends of the stirring blades 4-8 are inserted into the rectangular slotted holes 4-16 and are fixed on the lower cylindrical shell 4-15, so that the stirring blades 4-8 can be exposed only by disassembling the upper cylindrical shell 4-10 when the stirring blades are damaged, and maintenance is convenient.
3) The second liquid fertilizer outlet 4-14 is a round hole-shaped outlet, and the axis of the round hole-shaped outlet 4-14 passes through the circular groove 4-13.
4) An end cover is arranged at the top of the distribution cylinder body 4-5, and the second liquid fertilizer inlet 4-4 is arranged at the center of the end cover.
The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be provided in addition to the above embodiments. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.
Claims (7)
1. The utility model provides a fertilizer distributor is irritated to natural pond liquid secretly which characterized in that: comprises a chassis device, a fertilizer storage device, a liquid fertilizer distribution device and a ditching, soil covering and spreading device;
the ditching and earthing spreading device comprises a bracket hung at the rear end of the chassis device and a plurality of coulters arranged on the bracket, wherein the rear of the coulters is provided with earthing devices arranged in pairs, the earthing devices are fixed on the bracket, and the earthing devices are in V shapes;
the liquid fertilizer distribution device is positioned above the ditching earthing spreading device and consists of a stirrer, a distribution cylinder body which is fixed on the bracket and provided with a second liquid fertilizer inlet, annular grooves formed in the bottom of the distribution cylinder body and a plurality of second liquid fertilizer outlets which are arranged at intervals along the annular grooves, and the number of the second liquid fertilizer outlets is matched with that of the coulters; the second liquid fertilizer inlets are communicated with the first liquid fertilizer outlets, each second liquid fertilizer outlet is connected with a fertilizer conveying hose, and the outlet of each fertilizer conveying hose is positioned at the tail part of the coulter;
the stirrer comprises a power shaft vertically installed in the distribution cylinder body and a plurality of stirring blades installed on the power shaft, wherein the stirring blades are arc-shaped stirring blades, the power shaft extends along the axis of the circular groove, the front end of each stirring blade is fixed on the power shaft, and the tail end of each stirring blade extends into the circular groove and rotates along the circular groove when the power shaft rotates.
2. The biogas slurry dark-irrigation fertilizer applicator of claim 1, wherein: the shank of the coulter is provided with a clamping ring for the fertilizer delivery hose to pass through.
3. The biogas slurry dark-irrigation fertilizer applicator according to claim 1 or 2, characterized in that: the fertilizer storage tank body is in a hemispherical shape at two ends of the middle cylinder, a saddle-shaped base which is matched with the fertilizer storage tank body is arranged on the chassis device, the fertilizer storage tank body is fixed on the base, and a first liquid fertilizer outlet and a first liquid fertilizer inlet of the fertilizer storage tank body are both provided with connecting flanges.
4. The biogas slurry dark-irrigation fertilizer applicator according to claim 1 or 2, wherein: the axis of the distribution cylinder body coincides with the axis of the annular groove, and the power shaft is arranged at the bottom of the distribution cylinder body through a bearing.
5. The biogas slurry dark-irrigation fertilizer applicator according to claim 1 or 2, characterized in that: the second liquid fertilizer outlet is a round hole-shaped outlet, and the axis of the round hole-shaped outlet penetrates through the circular groove.
6. The biogas slurry dark-irrigation fertilizer applicator according to claim 1 or 2, wherein: the top of the distribution cylinder body is provided with an end cover, and the second liquid fertilizer inlet is arranged at the center of the end cover.
7. The biogas slurry dark-irrigation fertilizer applicator according to claim 1 or 2, characterized in that: the stirrer further comprises a lower cylindrical shell and an upper cylindrical shell, wherein the lower cylindrical shell is sleeved on the power shaft and fixedly connected with the power shaft, the upper cylindrical shell is tightly sleeved on the lower cylindrical shell, a first U-shaped groove with a downward opening is formed in the upper cylindrical shell, a second U-shaped groove with an upward opening and corresponding to the first U-shaped groove is formed in the lower cylindrical shell, rectangular slotted holes are formed by combining the first U-shaped groove with the second U-shaped groove, the number of the rectangular slotted holes is the same as that of stirring blades, and the front ends of the stirring blades are inserted into the rectangular slotted holes and fixed on the lower cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710338042.XA CN107114048B (en) | 2017-05-15 | 2017-05-15 | Biogas slurry dark irrigation fertilizer distributor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710338042.XA CN107114048B (en) | 2017-05-15 | 2017-05-15 | Biogas slurry dark irrigation fertilizer distributor |
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| CN107114048A CN107114048A (en) | 2017-09-01 |
| CN107114048B true CN107114048B (en) | 2023-07-21 |
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| CN201710338042.XA Active CN107114048B (en) | 2017-05-15 | 2017-05-15 | Biogas slurry dark irrigation fertilizer distributor |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107371537A (en) * | 2017-09-06 | 2017-11-24 | 贵阳台农种养殖有限公司 | One kind inhales excrement tumbrel |
| CN108207267A (en) * | 2018-01-31 | 2018-06-29 | 农业部沼气科学研究所 | Liquid Fertilizer application device and its method of administration |
| CN108738405B (en) * | 2018-06-19 | 2021-02-09 | 海安爵珈机械科技有限公司 | Small-size electronic banking machine |
| CN109964613B (en) * | 2019-04-01 | 2020-07-14 | 农业农村部南京农业机械化研究所 | Biogas slurry spreading experiment bench |
| CN112913424A (en) * | 2020-12-28 | 2021-06-08 | 农业农村部南京农业机械化研究所 | Multi-path distribution impurity removal system for deep fertilization of biogas manure |
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| SE533877C2 (en) * | 2009-05-29 | 2011-02-15 | Vaederstad Verken Ab | Plate for an agricultural implement |
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| JP2006223301A (en) * | 2005-01-21 | 2006-08-31 | Hokkaido | Fertilizer distributor and fertilizer sower |
| CN201733581U (en) * | 2010-06-13 | 2011-02-09 | 湖北虹发农业机械制造有限公司 | Small-sized cultivation fertilizing machine |
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