CN104567300A - Improved vacuum rotation dryer - Google Patents
Improved vacuum rotation dryer Download PDFInfo
- Publication number
- CN104567300A CN104567300A CN201410818101.XA CN201410818101A CN104567300A CN 104567300 A CN104567300 A CN 104567300A CN 201410818101 A CN201410818101 A CN 201410818101A CN 104567300 A CN104567300 A CN 104567300A
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- tube body
- double
- cone tube
- chuck
- thermal medium
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- 238000001035 drying Methods 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 14
- 238000003756 stirring Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- IWUCXVSUMQZMFG-AFCXAGJDSA-N Ribavirin Chemical compound N1=C(C(=O)N)N=CN1[C@H]1[C@H](O)[C@H](O)[C@@H](CO)O1 IWUCXVSUMQZMFG-AFCXAGJDSA-N 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229960000329 ribavirin Drugs 0.000 description 3
- HZCAHMRRMINHDJ-DBRKOABJSA-N ribavirin Natural products O[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1N1N=CN=C1 HZCAHMRRMINHDJ-DBRKOABJSA-N 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- -1 triazole carboxylate methyl ester Chemical class 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses an improved vacuum rotation dryer, which is used for solving the problems of long drying time, low drying efficiency and uneven inside material mixing of the traditional vacuum rotation dryer. The improved vacuum rotation dryer comprises a dryer base, a two-cone barrel and a driving motor and is characterized in that an auxiliary heating component which is communicated with the inner cavity of a jacket and enables thermal medium to orderly pass is arranged in the two-cone barrel. Objects similar to coils, cage-type pipelines and the like are added in the vacuum rotation dryer, the dryer rotates to perform a function of indirect stirring, and heating medium can be introduced into the coil to enlarge the heating area of the equipment, improve the drying efficiency of the equipment and shorten drying time.
Description
This patent application is former application for a patent for invention number: 2013105464987, and the applying date is on November 7th, 2013, and denomination of invention is " a kind of vacuum rotary drying machine with dual drying effect ", and publication number is the divisional application of CN103557680A.
Technical field
Program vacuum rotary drying machine field, is specifically applicable to a kind of modified vacuum rotary drying machine of pharmaceutical industry.
Background technology
Double conic rotary vacuum dryer is diconical rotary tank, first by inside the Pass air extract out formed vacuum state, in tank under vacuum conditions, by passing into steam or hot water heats in tank body chuck, heat is indirectly contacted with the wet stock in tank by inner tank wall, the steam of evaporation after wet stock heat absorption, be pumped through Vacuum exhaust tube by vavuum pump, roll while dry like this, owing to being in vacuum state in tank body, and the revolution of tank body make material constantly up and down inside and outside stir, accelerate the upset of material in tank, thus make the even rapid draing of material.
But in actual use, due to the restriction of chuck, if want to accelerate dry run, generally solved by two approach, one is the temperature improving thermal medium in chuck, and two is flow velocitys of the thermal medium improved in chuck, but above-mentioned means have certain scope of application.One of them scheme can with reference to scheme disclosed in CN102735030A.
In addition, in rotary vacuum dryer application, also there is a problem, the upset dynamics of wet stock in tank is inadequate, causes the prolongation of drying time.Someone have devised the rotary vacuum dryer being provided with rabbling mechanism for this reason, solves this problem, refers to a kind of scheme announced in patent CN201529252U.
Summary of the invention
In order to solve, existing vacuum rotary drying machine drying time is long, drying efficiency is low and the problem that inner batch mixing is irregular, the invention provides a kind of modified vacuum rotary drying machine.
The technical solution adopted for the present invention to solve the technical problems is: a kind of modified vacuum rotary drying machine, comprise support, double-cone tube body and drive motors, described double-cone tube body both sides are arranged on support by bearing assembly is rotating, and drive motors drives double-cone tube body to overturn by being in transmission connection, there is the chuck that an appearance thermal medium passes through in the barrel of described double-cone tube body, and supply line and the return line of vacuum extractor and the supply thermal medium through with chuck inner chamber extending to double-cone tube body inside is respectively equipped with in the both sides of described double-cone tube body, it is characterized in that, be provided with in described double-cone tube body inside one with chuck inner chamber through and hold the auxiliary heating parts that thermal medium passes through in order.
Further, described thermal medium in a juxtaposed fashion simultaneously through chuck and auxiliary heating parts, and to be flowed out by return line after supply line after confluxing.
Further, described thermal medium sequentially passes through chuck and auxiliary heating parts in the mode of serial connection after supply line, and is flowed out by return line.
Further, described thermal medium sequentially passes through auxiliary heating parts and chuck in the mode of serial connection after supply line, and is flowed out by return line.
Described auxiliary heating parts by the pipe fitting intersected in length and breadth form and with the caged that double-cone tube body inner chamber matches, comprise ring pipe and stay pipe, described stay pipe is directly fixedly connected with double-cone tube body.
Described auxiliary heating parts is the pipe fitting at least with a passage, and the two ends of described pipe fitting are separately fixed on the inwall of double-cone tube body.
Described auxiliary heating parts is annular or a spiral coil pipe.
Have in described chuck and stop that thermal medium makes it to be formed the dividing plate of certain glide path.
The outer surface of described auxiliary heating parts is smooth and without dead angle.
Key point: add the analog such as coil pipe, cage type pipeline in vacuum rotary drying machine inside, when drying machine rotates to play the effect of indirectly stirring, also can lead to heating agent with the heating surface (area) (HS of increasing device in coil pipe, improve the drying efficiency of equipment, shortens drying time.
The invention has the beneficial effects as follows: the core of this patent is the double conic rotary vacuum dryer of a kind of brand new technical improveing innovation on common double conic rotary vacuum dryer basis, Machine structural features integrates mixing at the former type of reservation---in former type chuck heating on-drying basis, be provided with the way of built-in hollow heating in addition.Thermal medium successively or after entering heating pipe built-in and chuck simultaneously again backflow realize two-way or dual-heated, solve the feature that material percolation heat transfer efficiency is low, therefore promoting on the abundant heat exchange basis of wet stock the heat transfer system that improve material by a relatively large margin, accelerate rate of drying.In addition, due to the existence of auxiliary heating parts, make wet stock can form with it effective shock, can guarantee that dry materials is evenly abundant, effectively prevent material from reuniting and lump thus guarantee product quality.Generally speaking just be the increase in heating surface (area) (HS, strengthen stirring intensity, shorten drying time.
Accompanying drawing explanation
Fig. 1 is the full sectional view of embodiment one.
Fig. 2 is the side schematic view of embodiment one.
Fig. 3 is I place partial enlarged drawing in Fig. 1.
Fig. 4 is the schematic diagram of embodiment two.
Fig. 5 is the schematic diagram of embodiment three.
Fig. 6 is the schematic diagram of embodiment four.
In figure: 1 support, 2 double-cone tube body, 21 installation portions, 22 chucks, 23 return flow lines, 24 supply lines, 25 return lines, 26 bearing assemblies, 27 sealing rings, 3 butterfly valve assemblies, 4 feed cap assemblies, 5 swivel joints, 61 vacuumize suction hood, 62 joints, 63 vacuum leads, 64 temperature, manometer, 7 auxiliary heating parts, 71 ring pipes, 72 stay pipes, 73 arms, 8 dividing plates, 81 flow orifices, 9 drive motors, 91 Chain conveyer.
Detailed description of the invention
Embodiment one, is described with a kind of embodiment of the best below, as shown in Figure 1 to Figure 3,
A kind of modified vacuum rotary drying machine, comprises support 1, double-cone tube body 2 and drive motors 9.Below its structure is described in detail.
Double-cone tube body 2 is the little cylindrical body broad in the middle in two, and two ports, butterfly valve assembly 3 and feed cap assembly 4 are installed respectively, feed cap is flange arrangement, and butterfly valve assembly 3 and feed cap assembly 4 are all prior art, and technical staff can understand it according to the accompanying drawing part of the application.
Installation portion 21 is provided with in the both sides of double-cone tube body 2, installation portion is by the rotating bearing block being arranged on support 1 of bearing assembly 26, formed and coordinate, and a drive motors 9 drives double-cone tube body to rotate by Chain conveyer 91, realize the function of double-cone tube body upset.There is the chuck 22 that an appearance thermal medium passes through in the barrel of double-cone tube body 2, and be provided with reflux line 23 in corresponding position, that is, the tube structure with internal jacket that double-cone tube body is made up of ectonexine, return flow line 23 is arranged on thermal medium and originates the same side, refluxes respectively from two ends to middle part.Supply line 24 and the return line 25 of the supply thermal medium through with chuck 22 is provided with on the left of double-cone tube body 2, thermal medium (such as hot water) is supplied in chuck, wherein return line 25 and supply line 24 are coaxial settings (pipeline be coaxially nested with), and be all positioned at pivot place, along with double-cone tube body is rotated together, easy understand, the position coordinated with the chuck 22 of double-cone tube body in supply and return line is provided with sealing ring 27, realize sealing, and swivel joint 5 and corresponding connector are set in the outer end of supply line, so that by water inlet pipe hot-water supply.
The vacuum extractor extending to double-cone tube body inside is provided with in the side of double-cone tube body 2, vacuum extractor comprises the temperature, the manometer 64 that vacuumize suction hood 61, joint 62, vacuum lead 63 and be correlated with, the suction hood 61 that vacuumizes wherein is arranged in double-cone tube body inner chamber, and be static parts, so need to implement dynamic seal (packing) at vacuum lead 63 position that double-cone tube body coordinates with it.
An auxiliary heating parts 7 through with chuck inner chamber is provided with in double-cone tube body 2 inside.This auxiliary heating parts 7 by the pipe fitting intersected in length and breadth form and be the caged matched with double-cone tube body inner chamber, comprise ring pipe 71 and stay pipe 72, wherein, ring pipe 71 is main thoroughfares of thermal medium, and is directly fixedly connected with double-cone tube body inwall by stay pipe 72.For preventing adhesion phenomenon, the outer surface of auxiliary heating parts and the inwall of double-cone tube body are designed to the smooth structure without dead angle, and this easily accomplishes.For making thermal medium sequential flowing, need to install in chuck 22 and stop that thermal medium makes it the dividing plate 8 forming certain glide path, its median septum 8 is arranged in chuck and chuck is divided into different subspaces, and ensure the flowing that corresponding flow orifice 81 carries out liquid, realize flowing according to projected route, refer to the direction of arrow in Fig. 1, wherein dotted portion represents the direction of flowing in chuck.
The present embodiment achieves thermal medium in a juxtaposed fashion through supply line 24 simultaneously through chuck 22 and auxiliary heating parts 7, and converging togetherly at return flow line place is flowed out by return line 25, is a kind of embodiment wherein.
Embodiment two, as shown in Figure 4,
Be with enforcement one difference, auxiliary heating parts 7 is the more simple pipe fittings of structure, these pipe fitting two ends are connected on double-cone tube body inwall, and two arms 73 are divided at middle part, improve heating effect, and in chuck, design dividing plate 8 for guiding the flowing of thermal medium, wherein the flow direction of thermal medium can the situation shown in reference diagram 4, and wherein dotted arrow represents the type of flow in chuck.Easy understand, making for making thermal medium to flow according to certain glide path, the form design of dividing plate can be become spiral or part helix shape.
Easily expect, arm also can adopt helix tube, with increasing heat radiation area.
Embodiment three, as shown in Figure 5,
Be with embodiment two difference, described thermal medium is flowed out by return line sequentially pass through auxiliary heating parts 7 and chuck 22 in the mode of serial connection after supply line 24 after, concrete path as shown by the arrows in Figure 5, wherein dotted arrow represents the type of flow in chuck, notes setting position and the mode of dividing plate.
Embodiment four, as shown in Figure 6,
Described thermal medium is flowed out by return line sequentially pass through chuck 22, auxiliary heating parts 7 and chuck 22 in the mode of serial connection after supply line after, and as shown by the arrows in Figure 6, wherein dotted arrow represents the type of flow in chuck in concrete path.
The preferred stainless steel pipe of auxiliary heating parts wherein makes.
By above-mentioned description, easy understand, because there is auxiliary heating parts inside, when drying machine rotates, coil pipe plays the effect of stirring to a certain extent, strengthen stirring of material, especially to slightly with viscosity or the large material of moisture, be beneficial to its thermally equivalent, make material more easily dry, shorten drying time, increase work efficiency.
Below by one group of experimental data, advantage of the present invention is described:
1, this equipment is used for the drying of Ribavirin
Name of material: Ribavirin
Wet stock composition: Ribavirin 70%, alcohol 28%, water 2%
Whole moisture: 0.4%(alcohol)
Over dry product proportion: 0.4kg
Temperature: 60-120 DEG C
Production capacity: 450kg/ criticizes
Viscosity degree: wet stock is viscosity slightly, dry product is inviscid
At identical thermal medium and temperature, adopt common dryer 10-13h drying time, use present device drying time to be 6-8 hours through checking.
2, this equipment is used for the drying of 1,2,3,5-Tetra-O-Acetyl-D-Ribose
Name of material: 1,2,3,5-Tetra-O-Acetyl-D-Ribose
Wet stock composition: 1,2,3,5-Tetra-O-Acetyl-D-Ribose 72%, water 18%
Whole moisture: 0.5%
Over dry product proportion: 0.6kg
Temperature: 60-65 DEG C
Production capacity: 600kg/ criticizes
Viscosity degree: wet mass is inviscid, dry product is inviscid
At identical thermal medium and temperature, adopt common dryer 19-22h drying time, use present device drying time to be 12-15 hour through checking.
3, this equipment is used for the drying of triazole carboxylate methyl ester
Name of material: triazole carboxylate methyl ester
Wet stock composition: triazole carboxylate methyl ester 80%, methyl alcohol 15%, water 5%
Whole moisture: 0.4%(water)
Over dry product proportion: 0.5kg
Temperature: 60-110 DEG C
Production capacity: 500kg/ criticizes
Viscosity degree: wet stock is viscosity slightly, dry product is inviscid
At identical thermal medium and temperature, adopt common dryer 15-18h drying time, use present device drying time to be 7-10 hour through checking.
Embodiment recited above is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; relevant technical staff in the field, to various distortion of the present invention and improvement, all should expand in protection domain as determined in claims of the present invention.
Claims (6)
1. a modified vacuum rotary drying machine, comprise support, double-cone tube body and drive motors, described double-cone tube body both sides are arranged on support by bearing assembly is rotating, and drive motors drives double-cone tube body to overturn by being in transmission connection, there is the chuck that an appearance thermal medium passes through in the barrel of described double-cone tube body, and supply line and the return line of vacuum extractor and the supply thermal medium through with chuck inner chamber extending to double-cone tube body inside is respectively equipped with in the both sides of described double-cone tube body, it is characterized in that, be provided with in described double-cone tube body inside one with chuck inner chamber through and hold the auxiliary heating parts that thermal medium passes through in order, described thermal medium sequentially passes through auxiliary heating parts and chuck in the mode of serial connection after supply line, and flowed out by return line.
2. a kind of modified vacuum rotary drying machine according to claim 1, it is characterized in that, described auxiliary heating parts by the pipe fitting intersected in length and breadth form and the caged matched with double-cone tube body inner chamber, comprise ring pipe and stay pipe, described stay pipe is directly fixedly connected with double-cone tube body.
3. a kind of modified vacuum rotary drying machine according to claim 1, is characterized in that, described auxiliary heating parts is the pipe fitting at least with a passage, and the two ends of described pipe fitting are separately fixed on the inwall of double-cone tube body.
4. a kind of modified vacuum rotary drying machine according to claim 1, is characterized in that, described auxiliary heating parts is annular or a spiral coil pipe.
5. a kind of modified vacuum rotary drying machine according to claim 1, is characterized in that, has and stop that thermal medium makes it to be formed the dividing plate of certain glide path in described chuck.
6. a kind of modified vacuum rotary drying machine according to claim 1, is characterized in that, the outer surface of described auxiliary heating parts is smooth and without dead angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410818101.XA CN104567300B (en) | 2013-11-07 | 2013-11-07 | A kind of modified model vacuum rotary drying machine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410818101.XA CN104567300B (en) | 2013-11-07 | 2013-11-07 | A kind of modified model vacuum rotary drying machine |
| CN201310546498.7A CN103557680B (en) | 2013-11-07 | 2013-11-07 | Vacuum rotary drying machine with double drying effects |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310546498.7A Division CN103557680B (en) | 2013-11-07 | 2013-11-07 | Vacuum rotary drying machine with double drying effects |
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| Publication Number | Publication Date |
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| CN104567300A true CN104567300A (en) | 2015-04-29 |
| CN104567300B CN104567300B (en) | 2016-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410818101.XA Active CN104567300B (en) | 2013-11-07 | 2013-11-07 | A kind of modified model vacuum rotary drying machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222577A (en) * | 2015-07-26 | 2016-01-06 | 张海娟 | Stereoscopic heating type dry vacuum container |
| CN105371595A (en) * | 2015-12-05 | 2016-03-02 | 张海娟 | Drying storehouse capable of utilizing afterheat |
| CN105423739A (en) * | 2015-12-07 | 2016-03-23 | 张海娟 | Thermo-tube drying storehouse capable of utilizing afterheat |
| CN105444551A (en) * | 2015-12-18 | 2016-03-30 | 张海娟 | Rotary drying storehouse with cooling section |
| CN105486070A (en) * | 2015-12-18 | 2016-04-13 | 张海娟 | Drying bin with cooling section |
| CN108253749A (en) * | 2018-03-20 | 2018-07-06 | 太仓正信干燥设备科技有限公司 | A kind of material automatic subpackaging equipment |
| CN108266984A (en) * | 2018-03-20 | 2018-07-10 | 太仓正信干燥设备科技有限公司 | A kind of double-cone dryer with back-blowing device |
| CN108302914A (en) * | 2018-03-20 | 2018-07-20 | 太仓正信干燥设备科技有限公司 | A kind of double-cone dryer |
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| CN201173664Y (en) * | 2007-12-18 | 2008-12-31 | 沈善明 | Double-temperature internal heating double cones vacuum drying machine |
| WO2009035428A1 (en) * | 2007-09-11 | 2009-03-19 | 'technological Park 'institute For Monocrystals', Close Joint-Stock Company | A dryer for free-flowing dielectric materials |
| CN202018187U (en) * | 2011-04-12 | 2011-10-26 | 金伟均 | Double-cone rotary vacuum drying machine |
| CN203595361U (en) * | 2013-11-07 | 2014-05-14 | 济南明鑫制药股份有限公司 | Vacuum rotary dryer with double-drying effect |
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2013
- 2013-11-07 CN CN201410818101.XA patent/CN104567300B/en active Active
Patent Citations (5)
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| JPH07208859A (en) * | 1994-01-19 | 1995-08-11 | Nippon Sanso Kk | Vacuum drying device |
| WO2009035428A1 (en) * | 2007-09-11 | 2009-03-19 | 'technological Park 'institute For Monocrystals', Close Joint-Stock Company | A dryer for free-flowing dielectric materials |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222577A (en) * | 2015-07-26 | 2016-01-06 | 张海娟 | Stereoscopic heating type dry vacuum container |
| CN105222577B (en) * | 2015-07-26 | 2017-12-05 | 张海娟 | Stereoscopic heating type dry vacuum container |
| CN105371595A (en) * | 2015-12-05 | 2016-03-02 | 张海娟 | Drying storehouse capable of utilizing afterheat |
| CN105371595B (en) * | 2015-12-05 | 2018-06-01 | 张海娟 | It can be with the dryness storehouse of UTILIZATION OF VESIDUAL HEAT IN |
| CN105423739A (en) * | 2015-12-07 | 2016-03-23 | 张海娟 | Thermo-tube drying storehouse capable of utilizing afterheat |
| CN105423739B (en) * | 2015-12-07 | 2018-06-01 | 张海娟 | It can be with the heat pipe dryness storehouse of UTILIZATION OF VESIDUAL HEAT IN |
| CN105444551A (en) * | 2015-12-18 | 2016-03-30 | 张海娟 | Rotary drying storehouse with cooling section |
| CN105486070A (en) * | 2015-12-18 | 2016-04-13 | 张海娟 | Drying bin with cooling section |
| CN105444551B (en) * | 2015-12-18 | 2018-09-07 | 张海娟 | There is the rotary drying storehouse of cooling section |
| CN108253749A (en) * | 2018-03-20 | 2018-07-06 | 太仓正信干燥设备科技有限公司 | A kind of material automatic subpackaging equipment |
| CN108266984A (en) * | 2018-03-20 | 2018-07-10 | 太仓正信干燥设备科技有限公司 | A kind of double-cone dryer with back-blowing device |
| CN108302914A (en) * | 2018-03-20 | 2018-07-20 | 太仓正信干燥设备科技有限公司 | A kind of double-cone dryer |
Also Published As
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| CN104567300B (en) | 2016-11-02 |
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Denomination of invention: An improved vacuum rotary dryer Effective date of registration: 20230217 Granted publication date: 20161102 Pledgee: Weihai commercial bank Limited by Share Ltd. Ji'nan branch Pledgor: JINAN MINGXIN PHARMACEUTICAL Co.,Ltd. Registration number: Y2023980032845 |
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Granted publication date: 20161102 Pledgee: Weihai commercial bank Limited by Share Ltd. Ji'nan branch Pledgor: JINAN MINGXIN PHARMACEUTICAL Co.,Ltd. Registration number: Y2023980032845 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An improved vacuum rotary dryer Granted publication date: 20161102 Pledgee: Weihai commercial bank Limited by Share Ltd. Ji'nan branch Pledgor: JINAN MINGXIN PHARMACEUTICAL Co.,Ltd. Registration number: Y2024980005646 |