CN103557680A - Vacuum rotary drying machine with double drying effects - Google Patents
Vacuum rotary drying machine with double drying effects Download PDFInfo
- Publication number
- CN103557680A CN103557680A CN201310546498.7A CN201310546498A CN103557680A CN 103557680 A CN103557680 A CN 103557680A CN 201310546498 A CN201310546498 A CN 201310546498A CN 103557680 A CN103557680 A CN 103557680A
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- vacuum rotary
- drying machine
- chuck
- bipyramid
- auxiliary heating
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- 238000001035 drying Methods 0.000 title claims abstract description 62
- 230000000694 effects Effects 0.000 title claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 230000009977 dual effect Effects 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 13
- 238000003756 stirring Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 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
- 238000010586 diagram Methods 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
- 238000010992 reflux Methods 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
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 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
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 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
- 239000012257 stirred material Substances 0.000 description 1
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Abstract
The invention relates to a vacuum rotary drying machine with double drying effects, and is used for solving the problems of the existing vacuum rotary drying machine that the drying time is long, the drying efficiency is low, and in addition, the internal material mixing is nonuniform. The vacuum rotary drying machine comprises a machine seat, a double-cone tube body and a driving motor, and is characterized in that an auxiliary heating component which is communicated with an inner cavity of a jacket and allows heat media to orderly pass is arranged inside the double-cone tube body. Analogues such as coil pipes and cage type pipelines are added in the vacuum rotary drying machine, an indirect stirring effect can be realized during the drying machine rotation, the heat media can also pass through the inside of the coil pipes for increasing the heating area of equipment, the drying efficiency of the equipment is improved, and the drying time is shortened.
Description
Technical field
This scheme vacuum rotary drying machine field, is specifically applicable to a kind of vacuum rotary drying machine with dual drying effect of pharmaceutical industry.
Background technology
Double conic rotary vacuum dryer is diconical rotary tank, first by inside the Pass air extract out to form vacuum state, tank is interior under vacuum state, by passing into steam or hot water heats in tank body chuck, heat indirectly contacts with the wet stock in tank by inner tank wall, the steam of evaporation after wet stock heat absorption, by vavuum pump, through Vacuum exhaust tube, be pumped, while rolling, be dried like this, due in tank body in vacuum state, and the revolution of tank body is stirred material inside and outside constantly upper and lower, accelerate the upset of material in tank, thereby make the even rapid draing of material.
But in actual use, due to the restriction of chuck, if want to accelerate dry run, generally by two approach, solve, the one, the temperature of thermal medium in raising chuck, the 2nd, the flow velocity of the thermal medium in raising chuck, but above-mentioned means have certain scope of application.One of them scheme can be with reference to disclosed scheme in CN102735030A.
In addition, in rotary vacuum dryer application, also have a problem, the upset dynamics of wet stock in tank is inadequate, causes the prolongation of drying time.Someone has designed the rotary vacuum dryer that is provided with rabbling mechanism for this reason, solves this problem, refers to a kind of scheme of announcing in patent CN201529252U.
Summary of the invention
In order to solve the problem that existing vacuum rotary drying machine drying time is long, drying efficiency is low and inner batch mixing is irregular, the invention provides a kind of vacuum rotary drying machine with dual drying effect.
The technical solution adopted for the present invention to solve the technical problems is: a kind of vacuum rotary drying machine with dual drying effect, comprise support, bipyramid cylindrical shell and drive motors, described bipyramid cylindrical shell both sides are arranged on support by bearing assembly is rotating, and drive motors drives bipyramid cylindrical shell to overturn by being in transmission connection, in the barrel of described bipyramid cylindrical shell, there is the chuck that an appearance thermal medium passes through, and in the both sides of described bipyramid cylindrical shell, be respectively equipped with supply line and the return line of the supply thermal medium that extends to the vacuum extractor of bipyramid inner barrel and connect with chuck inner chamber, it is characterized in that, in described bipyramid inner barrel, be provided with one that connect with chuck inner chamber and hold the auxiliary heating parts that thermal medium passes through in order.
Further, described thermal medium passes through chuck and auxiliary heating parts in mode arranged side by side after supply line simultaneously, and by return line, is flowed out 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.
That described auxiliary heating parts is comprised of the pipe fitting intersecting in length and breadth and with the cage shape that bipyramid cylinder lumen matches, comprise ring pipe and stay pipe, described stay pipe is directly fixedly connected with bipyramid cylindrical shell.
Described auxiliary heating parts is at least to have the pipe fitting of a passage, and the two ends of described pipe fitting are separately fixed on the inwall of bipyramid cylindrical shell.
Described auxiliary heating parts is annular or a spiral coil pipe.
In described chuck, have and stop that thermal medium makes it to form 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 analogs such as coil pipe, cage pipeline in vacuum rotary drying machine inside, to play the effect of indirect stirring, also can lead to heating agent in coil pipe with the heating surface (area) (HS of increasing device when drying machine rotates, improve the drying efficiency of equipment, shorten 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 of improvement innovation on common double conic rotary vacuum dryer basis, Machine structural features is to integrate mixing at the former type of reservation----dry basis is upper in former type chuck heating, is provided with in addition the way that built-in hollow heats.Thermal medium successively or after entering heating pipe built-in and chuck simultaneously refluxes and realizes two-way or dual-heated again, solved the low feature of material percolation heat transfer efficiency, therefore at the heat transfer system of material that promoted on the abundant heat exchange of wet stock basis raising by a relatively large margin, accelerated 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, thereby effectively prevent that the material caking of reuniting from guaranteeing product quality.Be exactly generally speaking to have increased heating surface (area) (HS, strengthened stirring intensity, shorten drying time.
Accompanying drawing explanation
Fig. 1 is the full sectional view of embodiment mono-.
Fig. 2 is the side schematic view of embodiment mono-.
Fig. 3 is I place partial enlarged drawing in Fig. 1.
Fig. 4 is the schematic diagram of embodiment bis-.
Fig. 5 is the schematic diagram of embodiment tri-.
Fig. 6 is the schematic diagram of embodiment tetra-.
In figure: 1 support, 2 bipyramid cylindrical shells, 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 transmissions.
The specific embodiment
Embodiment mono-, and the embodiment with a kind of the best describes below, as shown in Figure 1 to Figure 3,
A vacuum rotary drying machine with dual drying effect, comprises support 1, bipyramid cylindrical shell 2 and drive motors 9.Below its structure is described in detail.
Bipyramid cylindrical shell 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 application's accompanying drawing part.
In the both sides of bipyramid cylindrical shell 2, be provided with installation portion 21, installation portion is by the rotating bearing block that is arranged on support 1 of 26 of bearing assemblies, form to coordinate, and a drive motors 9 drives bipyramid cylindrical shells to rotate by chain transmission 91, realize the function of bipyramid cylindrical shell upset.In the barrel of bipyramid cylindrical shell 2, there is the chuck 22 that an appearance thermal medium passes through, and be provided with reflux line 23 in corresponding position, that is to say, the tube structure with interior chuck that bipyramid cylindrical shell is comprised of ectonexine, return flow line 23 is arranged on the same side, thermal medium source, refluxes respectively from two ends to middle part.In bipyramid cylindrical shell 2 left sides, be provided with supply line 24 and the return line 25 of the supply thermal medium connecting with chuck 22, in chuck, supply thermal medium (for example hot water), wherein return line 25 and supply line 24 are coaxial (pipelines that are coaxially nested with) that arrange, and be all positioned at pivot place, along with bipyramid cylindrical shell rotates together, hold intelligible, in supply and return line, be provided with sealing ring 27 with the position that the chuck 22 of bipyramid cylindrical shell coordinates, realize sealing, and swivel joint 5 and corresponding connector be set in the outer end of supply line, so that by water inlet pipe hot-water supply.
A side at bipyramid cylindrical shell 2 is provided with the vacuum extractor that extends to bipyramid inner barrel, vacuum extractor comprises and vacuumizes suction hood 61, joint 62, vacuum lead 63 and relevant temperature, manometer 64, the suction hood 61 that vacuumizes is wherein arranged in bipyramid cylinder lumen, and be static parts, so need to implement dynamic seal (packing) at vacuum lead 63 position that bipyramid cylindrical shell coordinates with it.
In bipyramid cylindrical shell 2 inside, be provided with an auxiliary heating parts 7 connecting with chuck inner chamber.That this auxiliary heating parts 7 is comprised of the pipe fitting intersecting in length and breadth and be the cage shape matching with bipyramid cylinder lumen, comprise ring pipe 71 and stay pipe 72, wherein, ring pipe 71 is main thoroughfares of thermal medium, and is directly fixedly connected with bipyramid cylinder inboard wall by stay pipe 72.For preventing adhesion phenomenon, the inwall of the outer surface of auxiliary heating parts and bipyramid cylindrical shell is designed to the smooth structure without dead angle, this easily accomplishes.For making thermal medium sequential flowing, need in chuck 22, install and stop that thermal medium makes it to form the dividing plate 8 of certain glide path, its median septum 8 is arranged in chuck and chuck is divided into different subspaces, and ensure corresponding flow orifice 81 and carry out flowing of liquid, realization is flowed according to projected route, refer to the direction of arrow in Fig. 1, wherein dotted portion represents direction mobile in chuck.
The present embodiment realized thermal medium in mode arranged side by side through supply line 24 and pass through chuck 22 and auxiliary heating parts 7 simultaneously, and by return line 25, flowed out place, return flow line is converging together, be a kind of embodiment wherein.
Embodiment bis-, 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 bipyramid cylinder inboard wall, and at middle part, be divided into two arms 73, improve heating effect, and in chuck, design dividing plate 8 for guiding flowing of thermal medium, and wherein the flow direction of thermal medium can be with reference to the situation shown in figure 4, and wherein dotted arrow is illustrated in the type of flow in chuck.Hold intelligiblely, for making thermal medium make to flow according to certain glide path, the pattern of dividing plate can be designed to spiral or part helical form.
Easily expect, arm also can adopt helix tube, with increasing heat radiation area.
Embodiment tri-, as shown in Figure 5,
Be with embodiment bis-differences, described thermal medium mode order with serial connection after supply line 24 is flowed out by return line after auxiliary heating parts 7 and chuck 22, concrete path as shown by the arrows in Figure 5, wherein dotted arrow is illustrated in the type of flow in chuck, notes setting position and the mode of dividing plate.
Embodiment tetra-, as shown in Figure 6,
Described thermal medium mode order with serial connection after supply line is flowed out by return line after chuck 22, auxiliary heating parts 7 and chuck 22, and as shown by the arrows in Figure 6, wherein dotted arrow is illustrated in the type of flow in chuck in concrete path.
The preferred stainless steel pipe of auxiliary heating parts is wherein made.
By above-mentioned description, easily understand, because there is auxiliary heating parts inside, when drying machine rotates, coil pipe plays the effect of stirring to a certain extent, strengthened stirring of material, especially to slightly with viscosity or the large material of moisture, be beneficial to its thermally equivalent, make material drier, shortened drying time, increased work efficiency.
Below by one group of experimental data, advantage of the present invention is described:
1, being dried for Ribavirin by this equipment
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 ℃
Production capacity: 450kg/ criticizes
Viscosity degree: wet stock is viscosity slightly, dry product is inviscid
At identical thermal medium and temperature, adopt common drying machine 10-13h drying time, through checking, using present device drying time is 6-8 hours.
2, being dried for 1,2,3,5-Tetra-O-Acetyl-D-Ribose by this equipment
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 ℃
Production capacity: 600kg/ criticizes
Viscosity degree: wet thing is inviscid, and dry product is inviscid
At identical thermal medium and temperature, adopt common drying machine 19-22h drying time, through checking, using present device drying time is 12-15 hour.
3, being dried for triazole carboxylate methyl ester by this equipment
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 ℃
Production capacity: 500kg/ criticizes
Viscosity degree: wet stock is viscosity slightly, dry product is inviscid
At identical thermal medium and temperature, adopt common drying machine 15-18h drying time, through checking, using present device drying time is 7-10 hour.
Embodiment recited above is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; relevant technical staff in the field, to various distortion of the present invention and improvement, all should expand in protection domain as determined in the claims in the present invention book.
Claims (9)
1. a vacuum rotary drying machine with dual drying effect, comprise support, bipyramid cylindrical shell and drive motors, described bipyramid cylindrical shell both sides are arranged on support by bearing assembly is rotating, and drive motors drives bipyramid cylindrical shell to overturn by being in transmission connection, in the barrel of described bipyramid cylindrical shell, there is the chuck that an appearance thermal medium passes through, and in the both sides of described bipyramid cylindrical shell, be respectively equipped with supply line and the return line of the supply thermal medium that extends to the vacuum extractor of bipyramid inner barrel and connect with chuck inner chamber, it is characterized in that, in described bipyramid inner barrel, be provided with one that connect with chuck inner chamber and hold the auxiliary heating parts that thermal medium passes through in order.
2. a kind of vacuum rotary drying machine with dual drying effect according to claim 1, is characterized in that, described thermal medium passes through chuck and auxiliary heating parts in mode arranged side by side after supply line simultaneously, and by return line, is flowed out after confluxing.
3. a kind of vacuum rotary drying machine with dual drying effect according to claim 1, is characterized in that, 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.
4. a kind of vacuum rotary drying machine with dual drying effect according to claim 1, is characterized in that, 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.
5. according to a kind of vacuum rotary drying machine with dual drying effect described in claim 2 or 3 or 4, it is characterized in that, that described auxiliary heating parts is comprised of the pipe fitting intersecting in length and breadth and match with bipyramid cylinder lumen cage shape, comprise ring pipe and stay pipe, described stay pipe is directly fixedly connected with bipyramid cylindrical shell.
6. according to a kind of vacuum rotary drying machine with dual drying effect described in claim 2 or 3 or 4, it is characterized in that, described auxiliary heating parts is at least to have the pipe fitting of a passage, and the two ends of described pipe fitting are separately fixed on the inwall of bipyramid cylindrical shell.
7. according to a kind of vacuum rotary drying machine with dual drying effect described in claim 2 or 3 or 4, it is characterized in that, described auxiliary heating parts is annular or a spiral coil pipe.
8. a kind of vacuum rotary drying machine with dual drying effect according to claim 1, is characterized in that, has and stop that thermal medium makes it to form the dividing plate of certain glide path in described chuck.
9. a kind of vacuum rotary drying machine with dual drying effect according to claim 1, is characterized in that, the outer surface of described auxiliary heating parts is smooth and without dead angle.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310546498.7A CN103557680B (en) | 2013-11-07 | 2013-11-07 | Vacuum rotary drying machine with double drying effects |
| CN201410818101.XA CN104567300B (en) | 2013-11-07 | 2013-11-07 | A kind of modified model vacuum rotary drying machine |
| CN201410818667.2A CN104567301B (en) | 2013-11-07 | 2013-11-07 | A kind of vacuum rotary drying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310546498.7A CN103557680B (en) | 2013-11-07 | 2013-11-07 | Vacuum rotary drying machine with double drying effects |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410818667.2A Division CN104567301B (en) | 2013-11-07 | 2013-11-07 | A kind of vacuum rotary drying machine |
| CN201410818101.XA Division CN104567300B (en) | 2013-11-07 | 2013-11-07 | A kind of modified model vacuum rotary drying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103557680A true CN103557680A (en) | 2014-02-05 |
| CN103557680B CN103557680B (en) | 2015-04-01 |
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| CN201310546498.7A Active CN103557680B (en) | 2013-11-07 | 2013-11-07 | Vacuum rotary drying machine with double drying effects |
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| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222543A (en) * | 2015-08-15 | 2016-01-06 | 张海娟 | Drum-type vacuum drying machine |
| CN105222542A (en) * | 2015-08-14 | 2016-01-06 | 张海娟 | Granule materials vacuum drier |
| CN105276970A (en) * | 2015-08-01 | 2016-01-27 | 张海娟 | Rotating type vacuum heat conduction and exchange device |
| CN105276971A (en) * | 2015-08-11 | 2016-01-27 | 张海娟 | Heating heat exchange device |
| CN114485093A (en) * | 2022-02-17 | 2022-05-13 | 季华恒一(佛山)半导体科技有限公司 | Drying system, method and equipment of drying machine, storage medium and drying machine |
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| JP2001070777A (en) * | 1999-09-07 | 2001-03-21 | Azuma Koki:Kk | Rotating treatment device |
| CN101082465A (en) * | 2007-05-15 | 2007-12-05 | 东南大学 | Rotating heat conducting sludge drying mechanism |
| CN201173664Y (en) * | 2007-12-18 | 2008-12-31 | 沈善明 | Double-temperature internal heating double cones vacuum drying machine |
| JP2009275972A (en) * | 2008-05-14 | 2009-11-26 | Ikebukuro Horo Kogyo Kk | Connecting structure of suction pipe tip of conical drier |
| 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 CN201310546498.7A patent/CN103557680B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001070777A (en) * | 1999-09-07 | 2001-03-21 | Azuma Koki:Kk | Rotating treatment device |
| CN101082465A (en) * | 2007-05-15 | 2007-12-05 | 东南大学 | Rotating heat conducting sludge drying mechanism |
| CN201173664Y (en) * | 2007-12-18 | 2008-12-31 | 沈善明 | Double-temperature internal heating double cones vacuum drying machine |
| JP2009275972A (en) * | 2008-05-14 | 2009-11-26 | Ikebukuro Horo Kogyo Kk | Connecting structure of suction pipe tip of conical drier |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276970A (en) * | 2015-08-01 | 2016-01-27 | 张海娟 | Rotating type vacuum heat conduction and exchange device |
| CN105276971A (en) * | 2015-08-11 | 2016-01-27 | 张海娟 | Heating heat exchange device |
| CN105222542A (en) * | 2015-08-14 | 2016-01-06 | 张海娟 | Granule materials vacuum drier |
| CN105222543A (en) * | 2015-08-15 | 2016-01-06 | 张海娟 | Drum-type vacuum drying machine |
| CN114485093A (en) * | 2022-02-17 | 2022-05-13 | 季华恒一(佛山)半导体科技有限公司 | Drying system, method and equipment of drying machine, storage medium and drying machine |
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Denomination of invention: A vacuum rotary dryer with double drying effect Effective date of registration: 20230217 Granted publication date: 20150401 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: 20150401 Pledgee: Weihai commercial bank Limited by Share Ltd. Ji'nan branch Pledgor: JINAN MINGXIN PHARMACEUTICAL Co.,Ltd. Registration number: Y2023980032845 |
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Denomination of invention: A vacuum rotary dryer with dual drying effect Granted publication date: 20150401 Pledgee: Weihai commercial bank Limited by Share Ltd. Ji'nan branch Pledgor: JINAN MINGXIN PHARMACEUTICAL Co.,Ltd. Registration number: Y2024980005646 |