CN110841498A - Novel zinc oxide adding and blending system - Google Patents
Novel zinc oxide adding and blending system Download PDFInfo
- Publication number
- CN110841498A CN110841498A CN201911217506.7A CN201911217506A CN110841498A CN 110841498 A CN110841498 A CN 110841498A CN 201911217506 A CN201911217506 A CN 201911217506A CN 110841498 A CN110841498 A CN 110841498A
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- China
- Prior art keywords
- zinc oxide
- arc
- rotating shaft
- connecting rod
- storage hopper
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
- A23N17/007—Apparatus specially adapted for preparing animal feeding-stuffs for mixing feeding-stuff components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/31—Couplings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7174—Feed mechanisms characterised by the means for feeding the components to the mixer using pistons, plungers or syringes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7179—Feed mechanisms characterised by the means for feeding the components to the mixer using sprayers, nozzles or jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/06—Mixing of food ingredients
- B01F2101/18—Mixing animal food ingredients
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Husbandry (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a novel zinc oxide adding and blending system which comprises a powder tank, a gas tank, a pressure cylinder, a material mixer and an arc-shaped storage hopper, wherein the powder tank is connected with the gas tank through a gas injection pipe, the gas injection pipe is positioned at the upper end of the powder tank, a pulse valve is arranged in the gas injection pipe and close to the gas tank, a first rotating shaft is rotatably arranged in the pressure cylinder, and a cam is sleeved on the first rotating shaft. According to the novel zinc oxide feeding and blending system, the feeding speed of zinc oxide powder is controlled through gas injection, meanwhile, the material raking rake moves upwards along the bottom of the arc-shaped storage hopper in the feeding aspect by utilizing the regular motion of the crank connecting rod, the material raking rake and the arc-shaped storage hopper synchronously feed the materials into the material mixer to be uniformly mixed, and the material raking rake and the arc-shaped storage hopper are circulated for multiple times.
Description
Technical Field
The invention relates to the field of zinc oxide application, in particular to a novel adding and blending system for zinc oxide.
Background
Zinc oxide is a common chemical additive, and is widely applied to the manufacture of products such as plastics, silicate products, synthetic rubber, lubricating oil, paint, coating, ointment, adhesive, food, batteries, flame retardant and the like; the zinc oxide is also a nutrition supplement agent (zinc enhancer) which can be used in feed nutrition, but the zinc oxide is added into the feed, the uniformity of the zinc oxide needs to be noticed, if the blending is not uniform, the zinc oxide content of local feed is too high, the growth and development of the local feed can be influenced after the local feed is eaten by livestock, a reasonable blending mode is not provided at present, because the zinc oxide is generally powdery solid, and the conventional paddle stirring is not advisable, so that a novel zinc oxide adding and blending system is provided.
Disclosure of Invention
The invention mainly aims to provide a novel zinc oxide adding and blending system which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a feeding and blending system of novel zinc oxide comprises a powder tank, a gas tank, a pressure cylinder, a material mixer and an arc storage hopper, wherein the powder tank is connected with the gas tank through an air injection pipe, the air injection pipe is positioned at the upper end of the powder tank, a pulse valve is arranged in the air injection pipe and close to the gas tank, a rotating shaft is rotatably arranged in the pressure cylinder, a cam is sleeved on the rotating shaft, one end of the cam is hinged with a connecting rod, the other end of the connecting rod is hinged with a motion plug, the motion plug is attached to the inside of the pressure cylinder, a jacking rod is arranged in the middle of the upper end face of the motion plug, a feeding control cavity is formed in the top of the pressure cylinder, a ball plug for plugging a lower cavity opening is placed in the feeding control cavity, the jacking rod is positioned under the ball plug, and the upper end of the powder tank is connected with the feeding control cavity through a communicating pipe, the side surface of the pressure cylinder is horizontally communicated with a material mixer through a material spraying pipe, the arc-shaped storage hopper is positioned above the material mixer in an inclined mode, a material guide groove is formed between the arc-shaped storage hopper and the material mixer and positioned above the material mixer in an inclined mode, a discharge valve is movably arranged at the bottom of the material mixer, the lower end of the material mixer is connected with a discharge pipe, and a feed bucket is placed under the discharge pipe;
the crank connecting rod structure comprises a first support, a second rotating shaft, a crank, a second connecting rod, a raking rake and a rocker, wherein the second rotating shaft is rotatably arranged on the first support, one end of the crank is welded with the second rotating shaft, the other end of the crank is hinged with the second connecting rod, the rocker is rotatably arranged on the second support, the other end of the rocker is hinged with the second connecting rod, the raking rake is welded with the second connecting rod, and the raking rake extends into the arc-shaped storage hopper.
Preferably, the first rotating shaft and the second rotating shaft are respectively connected with the first motor and the second motor in a rotating mode through a coupler.
Preferably, one end of the material spraying pipe is communicated with the inside of the pressure cylinder, and the other end of the material spraying pipe is communicated with the inside of the material mixer.
Preferably, the pulse valve and the discharge valve are controlled by electromagnetic timing and are linked.
Preferably, the material raking rake can move along the arc of the inner wall of the arc storage hopper to rake the pig feed into the material guide groove.
Preferably, the gas lance projects downwardly into the powder tank at an intermediate location within the interior thereof.
The invention provides a novel zinc oxide adding and doping system through improvement, and compared with the prior art, the novel zinc oxide adding and doping system has the following remarkable improvements and advantages:
(1) the feeding speed of zinc oxide powder is controlled by the novel feeding and doping system through gas injection, meanwhile, the regular motion of the crank connecting rod is utilized in the feeding aspect, so that the raking rake rakes materials upwards along the bottom of the arc-shaped storage hopper, the raking rake and the arc-shaped storage hopper synchronously send the materials into the material mixing device to be uniformly mixed, and multiple circulation is realized, compared with direct paddle stirring, the stirring uniformity is higher, and the feed cannot be crushed and the raising dust cannot be excited.
(2) The whole system is simple and reasonable in design, convenient to operate, low in production cost and beneficial to improving the working efficiency and the income of the company, and the using effect is better than that of a traditional mode.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a novel zinc oxide dosing and doping system.
In the figure: 1. a powder tank; 2. a gas tank; 3. a gas ejector tube; 4. a pulse valve; 5. a pressure cylinder; 6. a first rotating shaft; 7. a cam; 8. a first connecting rod; 9. a motion plug; 10. a jacking rod; 11. a feed control chamber; 12. a ball plug; 13. a communicating pipe; 14. a material mixer; 15. a material spraying pipe; 16. an arc-shaped storage hopper; 17. a material guide chute; 18. a discharge valve; 19. a discharge pipe; 20. a feed bucket; 21. a first support; 22. a second support; 23. a second rotating shaft; 24. a crank; 25. a second connecting rod; 26. raking a rake; 27. a rocker.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figure 1, a novel zinc oxide adding and blending system comprises a powder tank 1, a gas tank 2, a pressure cylinder 5, a material mixer 14 and an arc-shaped storage hopper 16, wherein the powder tank 1 and the gas tank 2 are connected by a gas injection pipe 3, the gas injection pipe 3 is positioned at the upper end of the powder tank 1, a pulse valve 4 is arranged in the gas injection pipe 3 and close to the gas tank 2, a first rotating shaft 6 is rotatably arranged in the pressure cylinder 5, a cam 7 is sleeved on the first rotating shaft 6, one end of the cam 7 is hinged with a first connecting rod 8, the other end of the first connecting rod 8 is hinged with a moving plug 9, the moving plug 9 is arranged in the pressure cylinder 5 in an attaching manner, a jacking rod 10 is arranged at the middle position of the upper end face of the moving plug 9, a feeding control cavity 11 is arranged at the top of the pressure cylinder 5, a ball plug 12 for plugging a lower cavity opening is arranged in the feeding control cavity 11, the jacking rod 10 is positioned right below the ball plug, the upper end of the powder tank 1 is connected with the feeding control cavity 11 by a communicating pipe 13, the side surface of the pressure cylinder 5 is horizontally communicated with a material mixer 14 by a material spraying pipe 15, an arc-shaped storage hopper 16 is positioned above the material mixer 14 in an inclined way, a material guide chute 17 is arranged between the arc-shaped storage hopper 16 and the material mixer 14, the material guide chute 17 is positioned above the material mixer 14 in an inclined way, a discharge valve 18 is movably arranged at the bottom of the material mixer 14, the lower end of the material mixer 14 is connected with a discharge pipe 19, and a feed bucket 20 is arranged under the discharge pipe 19;
the crank connecting rod structure comprises a first support 21, a second support 22, a second rotating shaft 23, a crank 24, a second connecting rod 25, a raking rake 26 and a rocker 27, wherein the second rotating shaft 23 is rotatably arranged on the first support 21, one end of the crank 24 is welded with the second rotating shaft 23, the other end of the crank 24 is hinged with the second connecting rod 25, the rocker 27 is rotatably arranged on the second support 22, the other end of the rocker 27 is hinged with the second connecting rod 25, the raking rake 26 is welded with the second connecting rod 25, and the raking rake 26 extends into the arc-shaped storage hopper 16;
the first rotating shaft 6 and the second rotating shaft 23 are respectively in rotating connection with the first motor and the second motor through a coupler; one end of the material spraying pipe 15 is communicated with the inside of the pressure cylinder 5, and the other end of the material spraying pipe 15 is communicated with the inside of the material mixer 14; the pulse valve 4 and the discharge valve 18 are controlled by electromagnetic timing and are linked; the raking rake 26 can move along the arc of the inner wall of the arc storage hopper 16 to rake the pig feed into the material guide groove 17; the gas injection pipe 3 extends downwards to the middle position in the powder tank 1, and can inject gas to blow up the zinc oxide powder in the powder tank 1.
The invention is to be noted that the invention is a novel zinc oxide adding and blending system, when in use, the pulse valve 4 is controlled to be opened, the gas in the gas tank 2 is ejected and enters the powder tank 1 along the gas ejector pipe 3, the gas is ejected to the bottom of the powder tank 1, dust is excited, meanwhile, as the gas pressure in the powder tank 1 rises, the dust along with the gas gushes into the communicating pipe 13 and enters the feeding control cavity 11, the cam 7 along with the first rotating shaft 6 makes circular motion, the position of the first connecting rod 8 changes along with the change and pushes the moving plug 9 to rise, the jacking rod 10 jacks up the ball plug 12 to expose the lower cavity opening, the dust in the feeding control cavity 11 is released from the lower cavity opening, along with the descending of the moving plug 9, the dust enters the material ejector pipe 15 and is ejected into the material mixer 14, meanwhile, the second rotating shaft 23 drives the crank 24 to make uniform-speed circular motion to act on the second connecting rod 25 and the rocker 27, the raking rake 26 regularly makes arc motion, crawls upwards along the bottom of the arc storage hopper 16, scrapes a small part of feed from the bottom, and then sends the feed to the top, the feed rolls down from the guide chute 17, falls into the material mixing device 14, and is fully mixed with zinc oxide powder which just gushes in, after the powder subsides, the discharge valve 18 is opened, and the mixture is led into the feed bucket 20 from the discharge pipe 19, and the process is circulated, so that the mixing task is completed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a new-type zinc oxide throw with adulterant system which characterized in that: comprises a powder tank (1), a gas tank (2), a pressure cylinder (5), a material mixing device (14) and an arc-shaped storage hopper (16), wherein an air injection pipe (3) is utilized to connect between the powder tank (1) and the gas tank (2), the air injection pipe (3) is positioned at the upper end of the powder tank (1), a pulse valve (4) is arranged in the air injection pipe (3) and close to the position of the gas tank (2), a rotating shaft (6) is arranged in the pressure cylinder (5) in a rotating way, a cam (7) is sleeved on the rotating shaft (6), one end of the cam (7) is hinged with a connecting rod (8), the other end of the connecting rod (8) is hinged with a motion plug (9), the motion plug (9) is arranged in the pressure cylinder (5) in a laminating way, a jacking rod (10) is arranged at the middle position of the upper end face of the motion plug (9), a feeding control cavity (11) is arranged at the top of the pressure cylinder (5), a ball plug (12) for plugging a lower cavity opening is placed in the feeding control cavity (11), the jacking rod (10) is positioned under the ball plug (12), the upper end of the powder tank (1) is connected with the feeding control cavity (11) through a communicating pipe (13), the side surface of the pressure cylinder (5) is horizontally communicated with a material spraying pipe (15) and a material mixing device (14), the arc-shaped storage hopper (16) is positioned above the material mixing device (14), a material guide groove (17) is arranged between the arc-shaped storage hopper (16) and the material mixing device (14), the material guide groove (17) is positioned above the material mixing device (14), a discharge valve (18) is movably arranged at the bottom of the material mixing device (14), the lower end of the material mixing device (14) is connected with a feed pipe (19), and a feed bucket (20) is placed under the discharge pipe (19);
the crank connecting rod structure comprises a first support (21), a second support (22), a second rotating shaft (23), a crank (24), a second connecting rod (25), a material raking rake (26) and a rocker (27), wherein the second rotating shaft (23) is rotatably arranged on the first support (21), one end of the crank (24) is welded with the second rotating shaft (23), the other end of the crank (24) is hinged with the second connecting rod (25), the rocker (27) is rotatably arranged on the second support (22), the other end of the rocker (27) is hinged with the second connecting rod (25), the material raking rake (26) is welded with the second connecting rod (25), and the material raking rake (26) extends into the arc-shaped material storage hopper (16).
2. The novel zinc oxide dosing and doping system as claimed in claim 1, wherein: the first rotating shaft (6) and the second rotating shaft (23) are respectively in rotating connection with the first motor and the second motor through a coupler.
3. The novel zinc oxide dosing and doping system as claimed in claim 1, wherein: one end of the material spraying pipe (15) is communicated with the inside of the pressure cylinder (5), and the other end of the material spraying pipe (15) is communicated with the inside of the material mixer (14).
4. The novel zinc oxide dosing and doping system as claimed in claim 1, wherein: the pulse valve (4) and the discharge valve (18) are controlled by electromagnetic timing and are linked.
5. The novel zinc oxide dosing and doping system as claimed in claim 1, wherein: the raking rake (26) can move along the arc of the inner wall of the arc storage hopper (16) to rake the pig feed into the guide chute (17).
6. The novel zinc oxide dosing and doping system as claimed in claim 1, wherein: the gas injection pipe (3) extends downwards into the middle position inside the powder tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911217506.7A CN110841498A (en) | 2019-12-03 | 2019-12-03 | Novel zinc oxide adding and blending system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911217506.7A CN110841498A (en) | 2019-12-03 | 2019-12-03 | Novel zinc oxide adding and blending system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110841498A true CN110841498A (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911217506.7A Pending CN110841498A (en) | 2019-12-03 | 2019-12-03 | Novel zinc oxide adding and blending system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110841498A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2024723C3 (en) * | 1970-05-21 | 1974-01-03 | Alois 7031 Oberjesingen Heger | Mixing device, in particular for processing animal feed |
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| CN203723110U (en) * | 2014-02-13 | 2014-07-23 | 扬州大学 | Rake straw conveying mechanism |
| CN204619864U (en) * | 2015-03-12 | 2015-09-09 | 泉州市润山生态农业综合开发有限公司 | A kind of foot-operated poultry farming feed agitator |
| CN106136279A (en) * | 2016-08-27 | 2016-11-23 | 邵鹏程 | A kind of animal husbandry feed mixed configuration processing means |
| CN106669480A (en) * | 2015-11-10 | 2017-05-17 | 西安发威电子科技有限公司 | Multi-layer feed stirrer |
| CN106828995A (en) * | 2017-04-05 | 2017-06-13 | 杨田文 | A kind of medical packaging powder medicaments quantitative discharging device |
| CN108246194A (en) * | 2018-02-12 | 2018-07-06 | 重庆三峡学院 | A kind of carbon nanomaterial dispersal device |
| CN108273443A (en) * | 2018-01-18 | 2018-07-13 | 叶安平 | A kind of mechanization fruits and vegetables plantation pesticide preparation equipment |
| CN108607441A (en) * | 2018-03-26 | 2018-10-02 | 王紫蓉 | A kind of livestock-raising pannage mixing arrangement |
| CN108970496A (en) * | 2018-07-16 | 2018-12-11 | 仁怀市春华秋实科技有限公司 | Chicken feed mixing arrangement |
| CN208671558U (en) * | 2018-07-24 | 2019-03-29 | 安徽省潜山县包装制品有限公司 | A kind of uniform drying equipment of bottle cap production and processing |
-
2019
- 2019-12-03 CN CN201911217506.7A patent/CN110841498A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2024723C3 (en) * | 1970-05-21 | 1974-01-03 | Alois 7031 Oberjesingen Heger | Mixing device, in particular for processing animal feed |
| CN202591106U (en) * | 2012-06-14 | 2012-12-12 | 长沙中联重科环卫机械有限公司 | Sorting machine and sorting mechanism thereof |
| CN203723110U (en) * | 2014-02-13 | 2014-07-23 | 扬州大学 | Rake straw conveying mechanism |
| CN204619864U (en) * | 2015-03-12 | 2015-09-09 | 泉州市润山生态农业综合开发有限公司 | A kind of foot-operated poultry farming feed agitator |
| CN106669480A (en) * | 2015-11-10 | 2017-05-17 | 西安发威电子科技有限公司 | Multi-layer feed stirrer |
| CN106136279A (en) * | 2016-08-27 | 2016-11-23 | 邵鹏程 | A kind of animal husbandry feed mixed configuration processing means |
| CN106828995A (en) * | 2017-04-05 | 2017-06-13 | 杨田文 | A kind of medical packaging powder medicaments quantitative discharging device |
| CN108273443A (en) * | 2018-01-18 | 2018-07-13 | 叶安平 | A kind of mechanization fruits and vegetables plantation pesticide preparation equipment |
| CN108246194A (en) * | 2018-02-12 | 2018-07-06 | 重庆三峡学院 | A kind of carbon nanomaterial dispersal device |
| CN108607441A (en) * | 2018-03-26 | 2018-10-02 | 王紫蓉 | A kind of livestock-raising pannage mixing arrangement |
| CN108970496A (en) * | 2018-07-16 | 2018-12-11 | 仁怀市春华秋实科技有限公司 | Chicken feed mixing arrangement |
| CN208671558U (en) * | 2018-07-24 | 2019-03-29 | 安徽省潜山县包装制品有限公司 | A kind of uniform drying equipment of bottle cap production and processing |
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Application publication date: 20200228 |
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