CN-121986626-A - Small-size accurate coating device suitable for precious breeding material of a small amount

CN121986626ACN 121986626 ACN121986626 ACN 121986626ACN-121986626-A

Abstract

The invention belongs to the technical field of agricultural breeding devices, and particularly relates to a small-sized precise coating device suitable for a small amount of precious breeding materials, which comprises a stirring cavity, a driving motor, a feeding hole, a discharging hole and an air outlet, wherein a plurality of spiral guide ribs are arranged on the inner wall of a cylindrical section of the stirring cavity; the side wall of the stirring cavity is provided with a plurality of groups of air inlet holes, the outside is coated with an annular air homogenizing sleeve, an annular wind shielding sleeve is rotatably arranged in the annular air homogenizing sleeve, a wind shielding plate is arranged between the wind shielding sleeve and the adjacent air inlet hole groups correspondingly, and the top of the wind shielding sleeve is provided with an adjusting wheel; A plurality of soft silica gel materials are symmetrically arranged on two sides of the stirring shaft through elastic connecting devices, and spiral stirring blades are further fixed on the stirring shaft. The adjustable wind shielding sleeve realizes stepless regulation of air inlet quantity and leakage prevention of medicament, realizes low-damage mixing of seeds by utilizing the synergistic effect of the spiral guide ribs and the flexible stirring blades, has the advantages of compact structure, low breakage rate, uniform mixing and controllable ventilation, and is suitable for trace and accurate coating treatment of precious breeding materials.

Inventors

HUANG LICHUN
ZHANG XINFEI
YAO GANG
ZHANG RUI
SONG LIYING
FENG LEI
Guo Rongqi
LI GUOQING
ZHENG HUI
LI HE
Chen Narentuya
HUANG TIANTIAN

Assignees

呼伦贝尔市农牧科学研究院(呼伦贝尔市畜牧技术推广中心)
兴安盟农牧科学院

Dates

Publication Date: 20260508
Application Date: 20260326

Claims (7)

1. The utility model provides a small-size accurate coating device suitable for precious breeding material of a small amount, includes stirring cavity (1), driving motor (2), feed inlet (3), discharge gate (4) and air exit (5), driving motor (2) are fixed in the top of stirring cavity (1), and driving motor (2) output is connected with (mixing) shaft (6) to stirring cavity (1) inside extension, feed inlet (3) and air exit (5) all set up in stirring cavity (1) top, discharge gate (4) set up in stirring cavity (1) bottom, its characterized in that: The stirring cavity (1) comprises an upper cylindrical section and a lower conical bottom section, and a plurality of spiral guide ribs (7) are arranged on the inner wall of the cylindrical section of the stirring cavity (1); A plurality of groups of air inlet holes (8) are formed in the side wall of the stirring cavity (1), an annular air homogenizing sleeve (9) is arranged on the outer side of the stirring cavity (1) in a coating mode at positions corresponding to the plurality of groups of air inlet holes (8), and an air inlet pipeline is connected to one side of the annular air homogenizing sleeve (9); An annular wind shielding sleeve (10) is rotatably arranged at the position, which is attached to the outer wall of the stirring cavity (1), of the annular wind homogenizing sleeve (9), wind shields (11) are arranged at positions, corresponding to the positions between two adjacent groups of air inlet holes (8), of the annular wind shielding sleeve (10), and an adjusting wheel (12) is arranged at the top of the annular wind shielding sleeve (10) extending to the top of the annular wind homogenizing sleeve (9); A plurality of stirring blades (13) are symmetrically arranged on two sides of the stirring shaft (6) through connecting rods (17), the stirring blades (13) are made of soft silica gel, and elastic connecting devices (14) are arranged on the connecting rods (17) of the stirring blades (13) and the stirring shaft (6); The outer wall of the stirring shaft (6) is also fixed with a spiral stirring blade (15).
2. The small-sized precise coating device suitable for small amounts of precious breeding materials according to claim 1, wherein the number of the spiral guide ribs (7) is 4-8, the spiral guide ribs are uniformly distributed along the circumferential direction of the inner wall of the stirring cavity (1), the helix angle of the spiral guide ribs (7) is 10-25 degrees, the protrusion height of each spiral guide rib (7) is 2-5mm, and the cross section of each spiral guide rib is of a semicircular structure.
3. The small-sized precise coating device suitable for small amounts of precious breeding materials according to claim 1, wherein the multiple groups of air inlet holes (8) are uniformly distributed along the circumferential direction and the axial direction of the stirring cavity (1), and the single group of air inlet holes (8) comprise a plurality of micropores which are arranged at intervals along the axial direction, and the pore diameter of the micropores is smaller than the minimum particle diameter of breeding seeds to be coated.
4. The small-size accurate coating device suitable for a small amount of precious breeding materials according to claim 1, wherein a plurality of air-homogenizing guide strips (16) are arranged on the inner wall of the annular air-homogenizing sleeve (9), the air-homogenizing guide strips (16) are arc-shaped strips axially extending along the inner wall of the annular air-homogenizing sleeve (9), and air-homogenizing flow passages are formed between adjacent air-homogenizing guide strips (16).
5. A small-size precision coating device suitable for small amounts of precious breeding materials according to claim 1, characterized in that the number of wind deflectors (11) is consistent with the number of circumferential groups of air inlet holes (8), and the axial length of the wind deflectors (11) is larger than the axial total length of a single group of air inlet holes (8).
6. The small-sized precise coating device suitable for small amounts of precious breeding materials according to claim 1, wherein the elastic connecting device (14) comprises a connecting rod (17) for connecting the stirring shaft (6) and the stirring blades (13), a buffer spring (18) is arranged in the middle of the connecting rod (17), and a telescopic corrugated pipe (19) is fully coated on the outer side of the buffer spring (18).
7. A small-sized precision coating device suitable for small amounts of precious breeding materials according to claim 1, characterized in that the exhaust outlet (5) is provided with a filter screen (20).

Description

Small-size accurate coating device suitable for precious breeding material of a small amount Technical Field The invention belongs to the technical field of agricultural breeding devices, and particularly relates to a small-sized precise coating device suitable for a small amount of precious breeding materials. Background The seed coating technology can effectively prevent and treat plant diseases and insect pests in the seedling stage and promote the growth of seedlings by uniformly coating the bactericide, the film forming agent and other medicaments on the surfaces of the seeds, and is a key link for realizing precise sowing. The precious breeding material has the characteristics of extremely small quantity, extremely high single grain value and severe requirement on seed vitality. However, most of the existing coating equipment on the market is designed for large-scale continuous production, the treatment capacity is dozens of kilograms, the inherent defects of poor adaptability of micro-treatment are that a conventional stirring structure has a mixing dead zone when a small amount of seeds are treated, more materials remain, waste of precious liquid medicine and seeds is easily caused, the seeds are easily damaged mechanically, rigid stirring blades are easily extruded and sheared on seed coats when the seeds are piled up or the particle sizes are uneven, germination rate is directly affected, air flow disturbance is uncontrollable, the air speed of a traditional air inlet mode is rough, light and small seeds are easily blown out of the stirring zone by open direct blowing, materials are escaped, mixing convection is insufficient, a small amount of seeds easily slide along with stirring She Zhouxiang in a stirring cavity with smooth inner walls, axial rolling is difficult to realize, and seed aggregation and uneven coating are caused. Disclosure of Invention The invention aims to provide a small-sized precise coating device suitable for a small amount of precious breeding materials, so as to solve the technical problems that seeds are easy to be damaged mechanically, the coating uniformity is poor, and the seeds are easy to be blown away by dry air flow to cause material escape and waste when the existing seed coating device is used for treating the small amount of precious breeding materials. In order to achieve the above purpose, the specific technical scheme of the small-sized precise coating device suitable for a small amount of precious breeding materials is as follows: The utility model provides a small-size accurate coating device suitable for precious breeding material of a small amount, includes stirring cavity, driving motor, feed inlet, discharge gate and air exit, driving motor is fixed in the top of stirring cavity, and driving motor's output is connected with the (mixing) shaft to stirring cavity inside extension, feed inlet and air exit all set up in the top of stirring cavity, the discharge gate sets up in the bottom of stirring cavity, its characterized in that: the stirring cavity comprises an upper cylindrical section and a lower conical bottom section, and a plurality of spiral guide ribs are arranged on the inner wall of the cylindrical section of the stirring cavity; the side wall of the stirring cavity is provided with a plurality of groups of air inlet holes, the outer side of the stirring cavity is provided with an annular air homogenizing sleeve in a coating manner at the position corresponding to the plurality of groups of air inlet holes, and one side of the annular air homogenizing sleeve is connected with an air inlet pipeline; The annular wind shielding sleeve is rotatably arranged at the position, which is attached to the outer wall of the stirring cavity, of the annular wind shielding sleeve, wind shields are arranged at the positions, corresponding to the positions between two adjacent groups of air inlet holes, of the annular wind shielding sleeve, and adjusting wheels are arranged at the tops of the annular wind shielding sleeve, extending to the tops of the annular wind shielding sleeve; A plurality of stirring blades are symmetrically arranged on two sides of the stirring shaft through connecting rods, the stirring blades are made of soft silica gel materials, and elastic connecting devices are arranged on the connecting rods of the stirring blades and the stirring shaft; the outer wall of the stirring shaft is also fixed with a spiral stirring blade. Further, the number of the spiral guide ribs is 4-8, the spiral guide ribs are uniformly distributed along the circumferential direction of the inner wall of the stirring cavity, the helix angle of the spiral guide ribs is 10-25 degrees, the height of the protrusions of each spiral guide rib is 2-5mm, and the cross section of each spiral guide rib is of a semicircular structure. Further, the multiple groups of air inlet holes are uniformly distributed along the circumferential direction and the axial direction of the