CN207180240U - A kind of preparing protodrug crystal drying system - Google Patents
A kind of preparing protodrug crystal drying system Download PDFInfo
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- CN207180240U CN207180240U CN201720927023.6U CN201720927023U CN207180240U CN 207180240 U CN207180240 U CN 207180240U CN 201720927023 U CN201720927023 U CN 201720927023U CN 207180240 U CN207180240 U CN 207180240U
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Abstract
It the utility model is related to a kind of preparing protodrug crystal drying system, including reactor axe body, reactor lid is set at the top of reactor axe body, reactor axe body right side wall is communicated with stainless steel Matter Transfer pipeline, reactor axe body lower left quarter connects gas heater, the external thermal cycle pipeline of gas heater, thermal cycle pipeline is communicated with heat exchanger and high-temperature-resistant gas circulating pump, and high-temperature-resistant gas circulating pump, heat exchanger, gas heater and reactor axe body form the touring path of gas by thermal cycle pipeline.The utility model is favorably improved the drying efficiency of preparing protodrug crystal, improves the production efficiency and finished product yield of preparing protodrug crystal.
Description
Technical field
Preparing protodrug crystal preparing technology field is the utility model is related to, more particularly to a kind of preparing protodrug crystal is done
Drying system.
Background technology
The key technology of preparing protodrug crystal production process section is the drying of active compound crystal, is currently used for raw insecticide
Drying device prepared by medicine crystal limits the drying efficiency of preparing protodrug crystal due to design defect to a certain extent,
It has impact on the production efficiency and finished product yield of preparing protodrug crystal.
In view of the above-mentioned problems, need to change the carry out technology of existing preparing protodrug crystal preparation technology section existing defects
Enter, design a kind of preparing protodrug crystal drying system, improve the drying efficiency of preparing protodrug crystal, improve preparing protodrug
The production efficiency and finished product yield of crystal.
The content of the invention
The purpose of this utility model is, for technological improvement existing for existing preparing protodrug crystal preparation technology section, if
A kind of preparing protodrug crystal drying system is counted, improves the drying efficiency of preparing protodrug crystal, improves preparing protodrug crystal
Production efficiency and finished product yield.
The utility model is achieved through the following technical solutions：
A kind of preparing protodrug crystal drying system, it is characterised in that structure includes reactor axe body（1）, reactor axe
Body（1）Top sets reactor lid（2）, reactor axe body（1）With reactor lid（2）Sealing coordinates；The reactor axe
Body（1）It is fixed on support leg（101）On；Reactor axe body（1）Bottom sets discharge valve（11）；
The reactor lid（2）Upper setting inlet valve（21）And air bleeding valve（22）；
The reactor axe body（1）It is internally provided with vertical stirring shaft（3）, reactor lid（2）Top is provided with use
In the vertical stirring shaft of driving（3）The motor of rotation（31）, vertical stirring shaft（3）Assemble upper end frame type stirring in upper end
Leaf oar（301）, vertical stirring shaft（3）Assemble bottom frame type stirring leaf oar in lower end（302）, vertical stirring shaft（3）Middle part
Board-like paddle is set to starch（303）；
The reactor axe body（1）Right side wall is communicated with stainless steel Matter Transfer pipeline（4）, stainless steel Matter Transfer pipeline
（4）Middle part sets high-pressure circulation pump（401）, stainless steel Matter Transfer pipeline（4）Feed inlet end and reactor axe body（1）Bottom
Connection, stainless steel Matter Transfer pipeline（4）Discharge port end and reactor axe body（1）Top connects；
The reactor axe body（1）Lower left quarter connects gas heater（5）, gas heater（5）External thermal cycle pipeline,
Thermal cycle pipeline is communicated with heat exchanger（6）With high-temperature-resistant gas circulating pump（62）, high-temperature-resistant gas circulating pump（62）, heat exchange
Device（6）, gas heater（5）And reactor axe body（1）The touring path of gas is formed by thermal cycle pipeline；
The thermal cycle pipeline both ends and reactor axe body（1）The position to connect is respectively arranged with one-level pneumatic filter
（61）With secondary gas filter（53）；One-level pneumatic filter（61）It is arranged at high-temperature-resistant gas circulating pump（62）With reactor
Axe body（1）Between pipeline on, secondary gas filter（53）It is arranged at gas heater（5）With reactor axe body（1）Between
Pipeline on；
The gas heater（5）Bottom sets triple valve（51）, triple valve（51）Three ports add respectively with gas
Hot device（5）, heat exchanger（6）And breather valve（52）It is connected；
The reactor axe body（1）Madial wall ecto-entad is disposed with electric heating tube（100）With steam-heating pipe set
（200）, electric heating tube（100）External power supply controller（1001）, steam-heating pipe set（200）Steam-out (SO) generator.
Further, the bottom frame type stirring leaf oar（302）Bottom connects rigid brush body（304）, rigid brush body
（304）Bottom and reactor axe body（1）Bottom is reserved with 1 ~ 2cm down suction.
Further, the end frame type stirring leaf oar（301）Removably it is assemblied in vertical stirring shaft（3）On.
Further, the bottom frame type stirring leaf oar（302）Removably it is assemblied in vertical stirring shaft（3）On.
Further, the board-like paddle slurry（303）Removably it is assemblied in vertical stirring shaft（3）On.
The utility model provides a kind of preparing protodrug crystal drying system, and compared with prior art, beneficial effect exists
In：
1st, the preparing protodrug crystal drying system of the utility model design, structure include reactor axe body（1）, reactor
Axe body（1）Top sets reactor lid（2）, reactor axe body（1）With reactor lid（2）Sealing coordinates；The reactor
Axe body（1）It is fixed on support leg（101）On；Reactor axe body（1）Bottom sets discharge valve（11）；Reactor lid（2）On
Inlet valve is set（21）And air bleeding valve（22）；Reactor axe body（1）It is internally provided with vertical stirring shaft（3）, reactor lid
（2）Top is provided with for driving vertical stirring shaft（3）The motor of rotation（31）, vertical stirring shaft（3）Upper end fills
With upper end frame type stirring leaf oar（301）, vertical stirring shaft（3）Assemble bottom frame type stirring leaf oar in lower end（302）, vertically
Stirring shaft（3）Middle part sets board-like paddle slurry（303）；Reactor axe body（1）Right side wall is communicated with stainless steel Matter Transfer
Pipeline（4）, stainless steel Matter Transfer pipeline（4）Middle part sets high-pressure circulation pump（401）, stainless steel Matter Transfer pipeline（4）'s
Feed inlet end and reactor axe body（1）Bottom connects, stainless steel Matter Transfer pipeline（4）Discharge port end and reactor axe body
（1）Top connects；Above-mentioned design, pass through upper end frame type stirring leaf oar（301）, bottom frame type stirring leaf oar（302）And plate
Formula paddle is starched（303）Mutual cooperation, effectively preparing protodrug crystal can be sufficiently stirred, it is brilliant to improve preparing protodrug
The decentralization of body, at the same time, pass through stainless steel Matter Transfer pipeline（4）With high-pressure circulation pump（401）Cooperation, be advantageous to carry
Rise reactor axe body（1）Flowing and heat exchange between the preparing protodrug crystal of top and the bottom, improve drying efficiency.
2nd, the preparing protodrug crystal drying system of the utility model design, reactor axe body（1）Lower left quarter connects gas
Heater（5）, gas heater（5）External thermal cycle pipeline, thermal cycle pipeline are communicated with heat exchanger（6）And high-temperature-resistant gas
Circulating pump（62）, high-temperature-resistant gas circulating pump（62）, heat exchanger（6）, gas heater（5）And reactor axe body（1）Pass through
Thermal cycle pipeline forms the touring path of gas；Thermal cycle pipeline both ends and reactor axe body（1）The position to connect is set respectively
There is one-level pneumatic filter（61）With secondary gas filter（53）；One-level pneumatic filter（61）High-temperature-resistant gas is arranged to follow
Ring pump（62）With reactor axe body（1）Between pipeline on, secondary gas filter（53）It is arranged at gas heater（5）With it is anti-
Answer kettle axe body（1）Between pipeline on；Gas heater（5）Bottom sets triple valve（51）, triple valve（51）Three ports
Respectively with gas heater（5）, heat exchanger（6）And breather valve（52）It is connected；Above-mentioned design, utilizes gas heater（5）
To via breather valve（52）The air of input is heated, and high-temperature gas is obtained after heating via secondary gas filter（53）Enter
Enter reactor axe body（1）To reactor axe body（1）Internal preparing protodrug crystal is dried；Into reactor axe body（1）
After internal high-temperature gas carries out heat exchange with preparing protodrug crystal, the remaining moisture of preparing protodrug plane of crystal is taken away,
Subsequent temperature reduces, and carries the recuperated gas of steam successively via one-level pneumatic filter（61）With high-temperature-resistant gas circulating pump
（62）Into heat exchanger（6）Heating and water vapor absorption again are carried out, then passes through triple valve（51）Into gas heater（5）
Heating recovers the condition of high temperature again, is again introduced into reactor axe body（1）To reactor axe body（1）Internal preparing protodrug crystal
It is dried.
3rd, the preparing protodrug crystal drying system of the utility model design, reactor axe body（1）Madial wall ecto-entad
It is disposed with electric heating tube（100）With steam-heating pipe set（200）, electric heating tube（100）External power supply controller（1001）,
Steam-heating pipe set（200）Steam-out (SO) generator；Above-mentioned design, the mode being combined with electrical heating is heated with steam to reaction
Kettle axe body（1）Heated, improve the efficiency of heating surface, while ensure the uniformity heated, be advantageous to improve raw insecticide
The drying efficiency of medicine crystal, improve the production efficiency and finished product yield of preparing protodrug crystal.
4th, the preparing protodrug crystal drying system of the utility model design, bottom frame type stirring leaf oar（302）Bottom
Connect rigid brush body（304）, rigid brush body（304）Bottom and reactor axe body（1）Bottom be reserved with 1 ~ 2cm it is vertical between
Gap；Above-mentioned design, by increasing rigid brush body（304）Stirring dead angle is greatly reduced, is advantageous to lift reactor axe body（1）
The uniformity and decentralization of internal insecticides active compound crystal, it is easy to lift preparing protodrug crystal drying efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model preparing protodrug crystal drying system.
Embodiment
The utility model is described further refering to accompanying drawing 1.
It the utility model is related to a kind of preparing protodrug crystal drying system, it is characterised in that structure includes reactor axe
Body（1）, reactor axe body（1）Top sets reactor lid（2）, reactor axe body（1）With reactor lid（2）Sealing is matched somebody with somebody
Close；The reactor axe body（1）It is fixed on support leg（101）On；Reactor axe body（1）Bottom sets discharge valve（11）；
The reactor lid（2）Upper setting inlet valve（21）And air bleeding valve（22）；
The reactor axe body（1）It is internally provided with vertical stirring shaft（3）, reactor lid（2）Top is provided with use
In the vertical stirring shaft of driving（3）The motor of rotation（31）, vertical stirring shaft（3）Assemble upper end frame type stirring in upper end
Leaf oar（301）, vertical stirring shaft（3）Assemble bottom frame type stirring leaf oar in lower end（302）, vertical stirring shaft（3）Middle part
Board-like paddle is set to starch（303）；
The reactor axe body（1）Right side wall is communicated with stainless steel Matter Transfer pipeline（4）, stainless steel Matter Transfer pipeline
（4）Middle part sets high-pressure circulation pump（401）, stainless steel Matter Transfer pipeline（4）Feed inlet end and reactor axe body（1）Bottom
Connection, stainless steel Matter Transfer pipeline（4）Discharge port end and reactor axe body（1）Top connects；
The reactor axe body（1）Lower left quarter connects gas heater（5）, gas heater（5）External thermal cycle pipeline,
Thermal cycle pipeline is communicated with heat exchanger（6）With high-temperature-resistant gas circulating pump（62）, high-temperature-resistant gas circulating pump（62）, heat exchange
Device（6）, gas heater（5）And reactor axe body（1）The touring path of gas is formed by thermal cycle pipeline；
The thermal cycle pipeline both ends and reactor axe body（1）The position to connect is respectively arranged with one-level pneumatic filter
（61）With secondary gas filter（53）；One-level pneumatic filter（61）It is arranged at high-temperature-resistant gas circulating pump（62）With reactor
Axe body（1）Between pipeline on, secondary gas filter（53）It is arranged at gas heater（5）With reactor axe body（1）Between
Pipeline on；
The gas heater（5）Bottom sets triple valve（51）, triple valve（51）Three ports add respectively with gas
Hot device（5）, heat exchanger（6）And breather valve（52）It is connected；
The reactor axe body（1）Madial wall ecto-entad is disposed with electric heating tube（100）With steam-heating pipe set
（200）, electric heating tube（100）External power supply controller（1001）, steam-heating pipe set（200）Steam-out (SO) generator.
As an improvement, the bottom frame type stirring leaf oar（302）Bottom connects rigid brush body（304）, rigid hairbrush
Rod（304）Bottom and reactor axe body（1）Bottom is reserved with 1 ~ 2cm down suction.
As an improvement, the end frame type stirring leaf oar（301）Removably it is assemblied in vertical stirring shaft（3）On.
As an improvement, the bottom frame type stirring leaf oar（302）Removably it is assemblied in vertical stirring shaft（3）On.
As an improvement, the board-like paddle slurry（303）Removably it is assemblied in vertical stirring shaft（3）On.
Compared with prior art, the preparing protodrug crystal drying system of the utility model design, structure include reactor
Axe body（1）, reactor axe body（1）Top sets reactor lid（2）, reactor axe body（1）With reactor lid（2）Sealing is matched somebody with somebody
Close；The reactor axe body（1）It is fixed on support leg（101）On；Reactor axe body（1）Bottom sets discharge valve（11）；Instead
Answer kettle cover body（2）Upper setting inlet valve（21）And air bleeding valve（22）；Reactor axe body（1）It is internally provided with vertical stirring shaft
（3）, reactor lid（2）Top is provided with for driving vertical stirring shaft（3）The motor of rotation（31）, vertical stirring
Rotating shaft（3）Assemble upper end frame type stirring leaf oar in upper end（301）, vertical stirring shaft（3）Assemble bottom frame type stirring in lower end
Leaf oar（302）, vertical stirring shaft（3）Middle part sets board-like paddle slurry（303）；Reactor axe body（1）Right side wall is communicated with
Stainless steel Matter Transfer pipeline（4）, stainless steel Matter Transfer pipeline（4）Middle part sets high-pressure circulation pump（401）, stainless steel material
Circulating line（4）Feed inlet end and reactor axe body（1）Bottom connects, stainless steel Matter Transfer pipeline（4）Discharge port end
With reactor axe body（1）Top connects；Above-mentioned design, pass through upper end frame type stirring leaf oar（301）, bottom frame type stirring leaf
Oar（302）And board-like paddle slurry（303）Mutual cooperation, effectively preparing protodrug crystal can be sufficiently stirred, improve
The decentralization of preparing protodrug crystal, at the same time, pass through stainless steel Matter Transfer pipeline（4）With high-pressure circulation pump（401）'s
Coordinate, be advantageous to lift reactor axe body（1）Flowing and heat exchange between the preparing protodrug crystal of top and the bottom, improve and dry effect
Rate.
The preparing protodrug crystal drying system of the utility model design, reactor axe body（1）Lower left quarter connection gas adds
Hot device（5）, gas heater（5）External thermal cycle pipeline, thermal cycle pipeline are communicated with heat exchanger（6）Followed with high-temperature-resistant gas
Ring pump（62）, high-temperature-resistant gas circulating pump（62）, heat exchanger（6）, gas heater（5）And reactor axe body（1）Pass through heat
Circulating line forms the touring path of gas；Thermal cycle pipeline both ends and reactor axe body（1）The position to connect is respectively arranged with
One-level pneumatic filter（61）With secondary gas filter（53）；One-level pneumatic filter（61）It is arranged at high-temperature-resistant gas circulation
Pump（62）With reactor axe body（1）Between pipeline on, secondary gas filter（53）It is arranged at gas heater（5）With reaction
Kettle axe body（1）Between pipeline on；Gas heater（5）Bottom sets triple valve（51）, triple valve（51）Three ports point
Not and gas heater（5）, heat exchanger（6）And breather valve（52）It is connected；Above-mentioned design, utilizes gas heater（5）It is right
Via breather valve（52）The air of input is heated, and high-temperature gas is obtained after heating via secondary gas filter（53）Into
Reactor axe body（1）To reactor axe body（1）Internal preparing protodrug crystal is dried；Into reactor axe body（1）It is interior
After the high-temperature gas in portion carries out heat exchange with preparing protodrug crystal, the remaining moisture of preparing protodrug plane of crystal is taken away, with
Temperature reduces afterwards, carries the recuperated gas of steam successively via one-level pneumatic filter（61）With high-temperature-resistant gas circulating pump
（62）Into heat exchanger（6）Heating and water vapor absorption again are carried out, then passes through triple valve（51）Into gas heater（5）
Heating recovers the condition of high temperature again, is again introduced into reactor axe body（1）To reactor axe body（1）Internal preparing protodrug crystal
It is dried.
The preparing protodrug crystal drying system of the utility model design, reactor axe body（1）Madial wall ecto-entad according to
It is secondary to be provided with electric heating tube（100）With steam-heating pipe set（200）, electric heating tube（100）External power supply controller（1001）, steam
Vapour heats pipe sleeve（200）Steam-out (SO) generator；Above-mentioned design, the mode being combined with steam heating with electrical heating is to reactor
Axe body（1）Heated, improve the efficiency of heating surface, while ensure the uniformity heated, be advantageous to improve preparing protodrug
The drying efficiency of crystal, improve the production efficiency and finished product yield of preparing protodrug crystal.
The preparing protodrug crystal drying system of the utility model design, bottom frame type stirring leaf oar（302）Bottom connects
Connect rigid brush body（304）, rigid brush body（304）Bottom and reactor axe body（1）Bottom be reserved with 1 ~ 2cm it is vertical between
Gap；Above-mentioned design, by increasing rigid brush body（304）Stirring dead angle is greatly reduced, is advantageous to lift reactor axe body（1）
The uniformity and decentralization of internal insecticides active compound crystal, it is easy to lift preparing protodrug crystal drying efficiency.
When in use, preparing protodrug crystal to be dried is via inlet valve for the utility model（21）Input reactor axe body
（1）Inside, utilize upper end frame type stirring leaf oar（301）, bottom frame type stirring leaf oar（302）And board-like paddle slurry
（303）Mutual cooperation, effectively preparing protodrug crystal each component can be sufficiently stirred, improve preparing protodrug crystal
Decentralization, pass through stainless steel Matter Transfer pipeline（4）With high-pressure circulation pump（401）Cooperation, be advantageous to lifted reactor axe body
（1）Flowing and heat exchange between the preparing protodrug crystal of top and the bottom, improve drying efficiency；Utilize gas heater（5）To warp
By breather valve（52）The air of input is heated, and high-temperature gas is obtained after heating via secondary gas filter（53）Into anti-
Answer kettle axe body（1）To reactor axe body（1）Internal preparing protodrug crystal is dried；Into reactor axe body（1）It is internal
High-temperature gas and preparing protodrug crystal carry out heat exchange after, take away the remaining moisture of preparing protodrug plane of crystal, then
Temperature reduces, and carries the recuperated gas of steam successively via one-level pneumatic filter（61）With high-temperature-resistant gas circulating pump（62）
Into heat exchanger（6）Heating and water vapor absorption again are carried out, then passes through triple valve（51）Into gas heater（5）Again
Heating recovers the condition of high temperature, is again introduced into reactor axe body（1）To reactor axe body（1）Internal preparing protodrug crystal is carried out
Dry.
As described above, you can the utility model is applied.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (5)
1. a kind of preparing protodrug crystal drying system, it is characterised in that structure includes reactor axe body（1）, reactor axe body
（1）Top sets reactor lid（2）, reactor axe body（1）With reactor lid（2）Sealing coordinates；The reactor axe body
（1）It is fixed on support leg（101）On；Reactor axe body（1）Bottom sets discharge valve（11）；
The reactor lid（2）Upper setting inlet valve（21）And air bleeding valve（22）；
The reactor axe body（1）It is internally provided with vertical stirring shaft（3）, reactor lid（2）Top is provided with for driving
Move vertical stirring shaft（3）The motor of rotation（31）, vertical stirring shaft（3）Assemble upper end frame type stirring leaf oar in upper end
（301）, vertical stirring shaft（3）Assemble bottom frame type stirring leaf oar in lower end（302）, vertical stirring shaft（3）Middle part is set
Board-like paddle slurry（303）；
The reactor axe body（1）Right side wall is communicated with stainless steel Matter Transfer pipeline（4）, stainless steel Matter Transfer pipeline（4）
Middle part sets high-pressure circulation pump（401）, stainless steel Matter Transfer pipeline（4）Feed inlet end and reactor axe body（1）Bottom connects
It is logical, stainless steel Matter Transfer pipeline（4）Discharge port end and reactor axe body（1）Top connects；
The reactor axe body（1）Lower left quarter connects gas heater（5）, gas heater（5）External thermal cycle pipeline, heat are followed
Endless tube road is communicated with heat exchanger（6）With high-temperature-resistant gas circulating pump（62）, high-temperature-resistant gas circulating pump（62）, heat exchanger
（6）, gas heater（5）And reactor axe body（1）The touring path of gas is formed by thermal cycle pipeline；
The thermal cycle pipeline both ends and reactor axe body（1）The position to connect is respectively arranged with one-level pneumatic filter（61）
With secondary gas filter（53）；One-level pneumatic filter（61）It is arranged at high-temperature-resistant gas circulating pump（62）With reactor axe body
（1）Between pipeline on, secondary gas filter（53）It is arranged at gas heater（5）With reactor axe body（1）Between pipe
On road；
The gas heater（5）Bottom sets triple valve（51）, triple valve（51）Three ports respectively with gas heater
（5）, heat exchanger（6）And breather valve（52）It is connected；
The reactor axe body（1）Madial wall ecto-entad is disposed with electric heating tube（100）With steam-heating pipe set
（200）, electric heating tube（100）External power supply controller（1001）, steam-heating pipe set（200）Steam-out (SO) generator.
2. preparing protodrug crystal drying system according to claim 1, it is characterised in that the bottom frame type stirring
Leaf oar（302）Bottom connects rigid brush body（304）, rigid brush body（304）Bottom and reactor axe body（1）Bottom is reserved with
1 ~ 2cm down suction.
3. preparing protodrug crystal drying system according to claim 1, it is characterised in that the end frame type stirring leaf
Oar（301）Removably it is assemblied in vertical stirring shaft（3）On.
4. preparing protodrug crystal drying system according to claim 1, it is characterised in that the bottom frame type stirring
Leaf oar（302）Removably it is assemblied in vertical stirring shaft（3）On.
5. preparing protodrug crystal drying system according to claim 1, it is characterised in that the board-like paddle slurry
（303）Removably it is assemblied in vertical stirring shaft（3）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720927023.6U CN207180240U (en) | 2017-07-28 | 2017-07-28 | A kind of preparing protodrug crystal drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720927023.6U CN207180240U (en) | 2017-07-28 | 2017-07-28 | A kind of preparing protodrug crystal drying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207180240U true CN207180240U (en) | 2018-04-03 |
Family
ID=61744589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720927023.6U Expired - Fee Related CN207180240U (en) | 2017-07-28 | 2017-07-28 | A kind of preparing protodrug crystal drying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207180240U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114918A (en) * | 2018-08-08 | 2019-01-01 | 邢文涛 | A kind of drying tower for the processing of engineering coating |
-
2017
- 2017-07-28 CN CN201720927023.6U patent/CN207180240U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114918A (en) * | 2018-08-08 | 2019-01-01 | 邢文涛 | A kind of drying tower for the processing of engineering coating |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20190728 |