CN110386461B - Raw material conveying device for 6-bromo-5-chloro-1H-indazole production line - Google Patents
Raw material conveying device for 6-bromo-5-chloro-1H-indazole production line Download PDFInfo
- Publication number
- CN110386461B CN110386461B CN201910618173.2A CN201910618173A CN110386461B CN 110386461 B CN110386461 B CN 110386461B CN 201910618173 A CN201910618173 A CN 201910618173A CN 110386461 B CN110386461 B CN 110386461B
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- Prior art keywords
- pipeline
- air inlet
- shell
- negative pressure
- vacuum bin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RFOWTBQSXKQLNW-UHFFFAOYSA-N 6-bromo-5-chloro-1h-indazole Chemical compound C1=C(Br)C(Cl)=CC2=C1NN=C2 RFOWTBQSXKQLNW-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000002994 raw material Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 230000006698 induction Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 33
- 238000000034 method Methods 0.000 abstract description 18
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/24—Gas suction systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/50—Pneumatic devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The invention discloses a raw material conveying device for a 6-bromo-5-chloro-1H-indazole production line, which comprises a shell and a protective cover arranged in the shell, wherein one end of the top of the shell is provided with a feed inlet, the top of the feed inlet is provided with a feed pipeline, one side of the top of the shell, which is far away from the feed inlet, is provided with a negative pressure pump, and one side of the negative pressure pump, which is far away from the feed inlet, is provided with a suction pipeline. According to the invention, through the negative pressure pump, the air suction pipeline, the vacuum bin, the filter, the air outlet pipeline and the conveying pipe, friction between the material in the conveying process and the conveying device is avoided, and the material is ensured to be carried out in a sealed environment in the conveying process, so that the quality of the material conveyed by the device is ensured, and meanwhile, through the valve, the negative pressure meter, the micro motor, the stirring fan, the micro cylinder, the supporting rod, the protective shell and the baffle plate, the flow of the material in the conveying process is controlled, and meanwhile, the uniformity of the material in the conveying process is better.
Description
Technical Field
The invention relates to the technical field of raw material conveying equipment for a 6-bromo-5-chloro-1H-indazole production line, in particular to a raw material conveying device for a 6-bromo-5-chloro-1H-indazole production line.
Background
The 6-bromo-5-chloro-1H-indazole is a fine chemical raw material, the existing synthesis process and the existing process are complex, raw materials used for production of the 6-bromo-5-chloro-1H-indazole are required to be conveyed in the production process, and the raw material conveying device for the 6-bromo-5-chloro-1H-indazole production line is adopted at the present stage to convey the raw material of the 6-bromo-5-chloro-1H-indazole.
However, the conventional raw material conveying device for a 6-bromo-5-chloro-1H-indazole production line has the following disadvantages:
1. the existing raw material conveying devices for the 6-bromo-5-chloro-1H-indazole production line all adopt conveyor belts to convey materials, and the conveyor belts mainly depend on friction force to convey the materials, and the conveying process is mostly exposed to the external environment, so that the quality of conveying the materials is affected.
2. The existing raw material conveying device for the 6-bromo-5-chloro-1H-indazole production line cannot effectively control the flow of materials in the conveying process and cannot ensure the uniformity of the materials in the conveying process due to the defects of the structure.
Disclosure of Invention
The invention aims to provide a raw material conveying device for a 6-bromo-5-chloro-1H-indazole production line, which solves the problems that the existing raw material conveying device for the 6-bromo-5-chloro-1H-indazole production line adopts a conveying belt to convey materials, the conveying belt mainly conveys the materials by virtue of friction force, and the conveying process is mainly exposed in an external environment, so that the quality of conveying the materials is affected, and meanwhile, the problem that the flow of the materials in the conveying process cannot be effectively controlled and the uniformity of the materials in the conveying process cannot be ensured in the conveying process of the materials due to the defects of the structure of the existing raw material conveying device for the 6-bromo-5-chloro-1H-indazole production line is solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a raw materials conveyor for 6-bromo-5-chloro-1H-indazole production line, includes the shell and installs the safety cover in the shell inside, shell top one end is provided with the feed inlet, the feed inlet top is provided with the feed pipe, feed inlet one side is kept away from to the shell top is provided with the negative pressure pump, negative pressure pump is kept away from feed inlet one side and is provided with the pipeline of breathing in, the pipeline intermediate position of breathing in is provided with the valve, the pipeline of breathing in is close to feed inlet one end and is connected with negative pressure pump gas inlet, negative pressure pump one end is kept away from to the pipeline of breathing in is provided with vacuum storehouse, vacuum storehouse bottom and shell keep away from feed inlet one side top fixed connection, vacuum storehouse inboard top is provided with the filter, vacuum storehouse one side is provided with the negative pressure table, vacuum storehouse bottom is provided with the pipeline of giving vent to anger, the inside conveyer pipe is provided with the conveyer pipe, conveyer pipe top is kept away from feed inlet one side top and is provided with the air inlet, the pipeline of giving vent to anger bottom is connected with the air inlet top, the pipeline of giving vent to anger is through pipeline of being linked to anger, the pipeline of keeping away from feed inlet one side bottom spherical bottom is provided with the bottom the shell, the shell bottom is kept away from the bottom of the discharge gate.
Preferably, the bottom of the air inlet is provided with an air inlet plate, the inside of the air inlet plate is provided with a cavity, the inside of the air inlet plate is communicated with an air outlet pipeline, and the bottom of the air inlet plate is provided with an air outlet hole.
Preferably, a filter screen is arranged in the middle position inside the air inlet plate, the length of the filter screen is consistent with that of the air inlet plate, and the height of the filter screen is 1/3 of that of the air inlet plate.
Preferably, a micro motor is arranged on one side of the feeding pipeline, an output shaft of the micro motor is connected with a rotating shaft through a shaft coupler, the rotating shaft is arranged inside the feeding pipeline, and a stirring fan is arranged on the outer side of the rotating shaft.
Preferably, the feeding pipeline both sides all are provided with the microcylinder, the microcylinder sets up in the micromotor bottom, microcylinder output shaft one end runs through the feeding pipeline inner wall, microcylinder output shaft one end is connected with the bracing piece through articulated mode.
Preferably, the inside both sides of charge-in pipeline all are provided with the protective housing, the protective housing top all is provided with the striker plate, striker plate one end is connected through articulated mode with the charge-in pipeline inner wall, the protective housing all sets up in the stirring fan bottom with the striker plate, the through-hole has been seted up to charge-in pipeline one side is kept away from to the protective housing, the through-hole sets up for the slope, the bracing piece is kept away from microcylinder one end and is run through-hole and striker plate bottom fixed connection.
The invention provides a raw material conveying device for a 6-bromo-5-chloro-1H-indazole production line, which has the following beneficial effects:
(1) According to the invention, the negative pressure pump, the air suction pipeline, the vacuum bin, the filter, the air outlet pipeline, the conveying pipe and the discharge port are arranged, and the negative pressure pump is turned on to enable the negative pressure pump to generate negative pressure to the interior of the vacuum bin through the air suction pipeline.
(2) According to the invention, the valve, the negative pressure meter, the micro motor, the stirring fan, the micro cylinder, the supporting rod, the protective shell and the baffle plate are arranged, materials to be conveyed are thrown into the feeding pipeline, the micro motor is turned on, and then the stirring fan can rotate under the drive of the micro motor, so that the materials in the feeding pipeline are stirred, the phenomenon that the materials are blocked in the feeding pipeline is avoided, meanwhile, the uniformity of material flow is ensured, meanwhile, the negative pressure condition in the vacuum bin is recorded by observing the negative pressure meter, the negative pressure in the vacuum bin is controlled by the valve, the opening size between the baffle plates is controlled by starting the micro cylinder and controlling the extension and shortening of the output shaft of the micro cylinder, and the flow of the materials in the conveying process is controlled, and meanwhile, the uniformity of the materials in the conveying process is better.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a side view of the present invention;
fig. 3 is an enlarged view of the structure of fig. 1 a according to the present invention.
In the figure: 1. a housing; 2. a protective cover; 3. a feed conduit; 4. a negative pressure pump; 5. an air suction pipe; 6. a valve; 7. a vacuum bin; 8. a filter; 9. a negative pressure meter; 10. an air outlet pipe; 11. a delivery tube; 12. a discharge port; 13. a discharge pipe; 14. a ball valve; 15. an air inlet plate; 16. a filter screen; 17. a micro motor; 18. a stirring fan; 19. a micro cylinder; 20. a support rod; 21. a protective shell; 22. and a striker plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-3, the present invention provides a technical solution: the utility model provides a raw materials conveyor for 6-bromo-5-chloro-1H-indazole production line, includes shell 1 and installs at the inside safety cover 2 of shell 1, shell 1 top one end is provided with the feed inlet, the feed inlet top is provided with feeding pipeline 3, shell 1 top is kept away from feed inlet one side and is provided with negative pressure pump 4, feeding inlet one side is kept away from to negative pressure pump 4 is provided with suction pipe 5, suction pipe 5 intermediate position is provided with valve 6, suction pipe 5 is close to feed inlet one end and is connected with negative pressure pump 4 induction port, suction pipe 5 is kept away from negative pressure pump 4 one end and is provided with vacuum warehouse 7, vacuum warehouse 7 bottom and shell 1 keep away from feed inlet one side top fixed connection, vacuum warehouse 7 inboard top is provided with filter 8, vacuum warehouse 7 one side is provided with negative pressure table 9, vacuum warehouse 7 bottom is provided with out the pipeline 10, the inside conveyer pipe 11 that is provided with of safety cover 2, vacuum warehouse 7 one side is kept away from to the top is provided with the opening, the opening top is linked together with feeding pipeline 3 bottom, conveyer pipe 11 is close to feed inlet one side is provided with vacuum warehouse 11, the ball-shaped top is kept away from feeding pipe 13, 13 is kept away from feeding pipe 11 bottom one side and is kept away from feeding pipe 1, 13 bottom is kept away from feeding pipe 13, 13 is kept away from feeding pipe 1 bottom is connected with discharging pipe 13.
The air inlet bottom is provided with air inlet plate 15, the inside cavity that sets up of air inlet plate 15, air inlet plate 15 is inside to be linked together with the pipeline 10 of giving vent to anger, air inlet plate 15 bottom is provided with the venthole, through setting up air inlet plate 15, and then is favorable to the protection to the air inlet.
The inside intermediate position of air inlet plate 15 is provided with filter screen 16, the length of filter screen 16 is unanimous with air inlet plate 15 length, the height setting of filter screen 16 is 1/3 of air inlet plate 15, through setting up filter screen 16, and then avoids the material to appear by the condition of adsorbing into the air inlet, and then has further strengthened the protection to the air inlet.
The feeding pipeline 3 one side is provided with micro motor 17, micro motor 17 output shaft is connected with the pivot through the axle coupling ware, the pivot sets up inside feeding pipeline 3, the pivot outside is provided with stirring fan 18, through setting up micro motor 17 and stirring fan 18, and then avoids the material to appear the condition of jam in feeding pipeline 3 inside, and then is favorable to the transportation of material.
The feeding pipeline 3 both sides all are provided with miniature cylinder 19, miniature cylinder 19 sets up in miniature motor 17 bottom, miniature cylinder 19 output shaft one end runs through feeding pipeline 3 inner wall, miniature cylinder 19 output shaft one end is connected with bracing piece 20 through articulated mode.
The inside both sides of feeding pipeline 3 all are provided with protective housing 21, the protective housing 21 top all is provided with striker plate 22, striker plate 22 one end is connected through articulated mode with feeding pipeline 3 inner wall, protective housing 21 and striker plate 22 all set up in stirring fan 18 bottom, the through-hole has been seted up to feeding pipeline 3 one side is kept away from to protective housing 21, the through-hole sets up for the slope, bracing piece 20 is kept away from micro cylinder 19 one end and runs through-hole and striker plate 22 bottom fixed connection, through setting up striker plate 22, and then can be through the opening size between the control striker plate 22 to realize the control to the material flow size.
Working principle: when the device is used, the materials to be conveyed are thrown into the feeding pipeline 3, the micro motor 17 is opened, and then the stirring fan 18 can rotate under the driving of the micro motor 17, so that the materials inside the feeding pipeline 3 are stirred, the phenomenon that the materials are blocked inside the feeding pipeline 3 is avoided, meanwhile, the uniformity of the flow of the materials can be guaranteed, then the negative pressure pump 4 is opened, the negative pressure pump 4 can generate negative pressure for the inside of the vacuum bin 7 through the air suction pipeline 5, the negative pressure is formed inside the vacuum bin 7, the bottom of the vacuum bin 7 is communicated with the inside of the conveying pipeline 11 through the air outlet pipeline 10, the conveying pipeline 11 is further made to form negative pressure at one end of the conveying pipeline far away from the feeding port, and then the materials can be conveyed to the discharging port 12 from the feeding port, friction force between the materials conveying device is avoided, the quality of the device is guaranteed, further, staff can record the negative pressure condition inside the vacuum bin 7 through the negative pressure table 9, the negative pressure inside the vacuum bin 7 is controlled through the valve 6, meanwhile, the output shaft 19 can be started, the micro air cylinder 19 is controlled through the control of the micro air cylinder 19, the large-size and the small size of the conveying pipeline is controlled, the large-size of the conveying pipeline is controlled, and the conveying process is well, and the conveying quality of the materials can be controlled in a large process, and the process is controlled.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a raw materials conveyor for 6-bromo-5-chloro-1H-indazole production line, includes shell (1) and installs safety cover (2) in shell (1) inside, its characterized in that: the utility model discloses a vacuum filter, vacuum bin (7) bottom and shell (1) keep away from feed inlet one side top fixed connection, vacuum bin (7) inboard top is provided with filter (8), vacuum bin (7) one side is provided with negative pressure table (9), vacuum bin (7) bottom is provided with air outlet pipeline (10), safety cover (2) inside is provided with conveyer pipe (11), conveyer pipe (11) top is kept away from vacuum bin (7) one side and is provided with the opening near feed inlet one end and is connected with negative pressure pump (4) induction port, vacuum bin (7) bottom and shell (1) keep away from feed inlet one side top fixed connection, vacuum bin (7) inboard top is provided with filter (8), vacuum bin (7) one side is provided with negative pressure table (9), vacuum bin (7) bottom is provided with air outlet pipeline (10), conveyer pipe (11) top is kept away from vacuum bin (7) one side and is provided with the opening, opening top and feed pipe (3) bottom are kept away from vacuum bin (11) and are connected with air inlet (10) top through vacuum bin (7) top and air inlet (10), the utility model discloses a conveyer pipe, including conveyer pipe (11), feed inlet one end bottom is kept away from to conveyer pipe (11), feed inlet one end bottom is provided with discharge gate (12), discharge gate (12) bottom is provided with discharge pipeline (13), discharge pipeline (13) run through shell (1) bottom outer wall, discharge pipeline (13) are kept away from shell (1) bottom inboard and are provided with ball valve (14), the air inlet bottom is provided with air inlet plate (15), inside being set up to the cavity air inlet plate (15), air inlet plate (15) are inside to be linked together with air outlet pipe (10), air inlet plate (15) bottom is provided with the venthole, feed pipe (3) one side is provided with micro motor (17), micro motor (17) output shaft is connected with the pivot through the axle allies oneself with the ware, the pivot setting is inside feed pipe (3), the pivot outside is provided with stirring fan (18).
2. The raw material conveying device for a 6-bromo-5-chloro-1H-indazole production line according to claim 1, wherein: the air inlet plate (15) is internally provided with a filter screen (16) at the middle position, the length of the filter screen (16) is consistent with that of the air inlet plate (15), and the height of the filter screen (16) is 1/3 of that of the air inlet plate (15).
3. The raw material conveying device for a 6-bromo-5-chloro-1H-indazole production line according to claim 1, wherein: the feeding pipeline (3) both sides all are provided with miniature cylinder (19), miniature cylinder (19) set up in miniature motor (17) bottom, miniature cylinder (19) output shaft one end runs through feeding pipeline (3) inner wall, miniature cylinder (19) output shaft one end is connected with bracing piece (20) through articulated mode.
4. A raw material delivery apparatus for a 6-bromo-5-chloro-1H-indazole production line according to claim 3, wherein: the utility model discloses a feeding pipeline (3) is characterized in that protective housing (21) are all provided with in inside both sides of feeding pipeline (3), protective housing (21) top all is provided with striker plate (22), striker plate (22) one end is connected through articulated mode with feeding pipeline (3) inner wall, protective housing (21) all set up in stirring fan (18) bottom with striker plate (22), through-hole has been seted up in feed pipeline (3) one side is kept away from to protective housing (21), the through-hole sets up for the slope, microcylinder (19) one end is kept away from to bracing piece (20) runs through-hole and striker plate (22) bottom fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910618173.2A CN110386461B (en) | 2019-07-10 | 2019-07-10 | Raw material conveying device for 6-bromo-5-chloro-1H-indazole production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910618173.2A CN110386461B (en) | 2019-07-10 | 2019-07-10 | Raw material conveying device for 6-bromo-5-chloro-1H-indazole production line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110386461A CN110386461A (en) | 2019-10-29 |
| CN110386461B true CN110386461B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910618173.2A Active CN110386461B (en) | 2019-07-10 | 2019-07-10 | Raw material conveying device for 6-bromo-5-chloro-1H-indazole production line |
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| CN203392505U (en) * | 2013-06-28 | 2014-01-15 | 江西新胜新材料有限公司 | Anti-blocking material conveying device |
| CN204896810U (en) * | 2015-09-09 | 2015-12-23 | 江苏新农化工有限公司 | Vacuum negative pressure material conveyor |
| WO2016116043A1 (en) * | 2015-01-21 | 2016-07-28 | 珠海优特电力科技股份有限公司 | Pneumatic conveying and compounding mechanism |
| CN208828848U (en) * | 2018-08-26 | 2019-05-07 | 天津依姆森科技发展有限公司 | A kind of powdery paints production collecting mechanism |
| CN109969798A (en) * | 2019-05-02 | 2019-07-05 | 王相勇 | A kind of powder feeder that novel connection negative pressure pump can use |
| CN211225494U (en) * | 2019-07-10 | 2020-08-11 | 南京道尔顿化学技术有限公司 | Raw material conveying device for 6-bromo-5-chloro-1H-indazole production line |
-
2019
- 2019-07-10 CN CN201910618173.2A patent/CN110386461B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203392505U (en) * | 2013-06-28 | 2014-01-15 | 江西新胜新材料有限公司 | Anti-blocking material conveying device |
| WO2016116043A1 (en) * | 2015-01-21 | 2016-07-28 | 珠海优特电力科技股份有限公司 | Pneumatic conveying and compounding mechanism |
| CN204896810U (en) * | 2015-09-09 | 2015-12-23 | 江苏新农化工有限公司 | Vacuum negative pressure material conveyor |
| CN208828848U (en) * | 2018-08-26 | 2019-05-07 | 天津依姆森科技发展有限公司 | A kind of powdery paints production collecting mechanism |
| CN109969798A (en) * | 2019-05-02 | 2019-07-05 | 王相勇 | A kind of powder feeder that novel connection negative pressure pump can use |
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| CN110386461A (en) | 2019-10-29 |
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