CN105466174A - Vacuum tube bundle drying machine - Google Patents
Vacuum tube bundle drying machine Download PDFInfo
- Publication number
- CN105466174A CN105466174A CN201510985480.6A CN201510985480A CN105466174A CN 105466174 A CN105466174 A CN 105466174A CN 201510985480 A CN201510985480 A CN 201510985480A CN 105466174 A CN105466174 A CN 105466174A
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- Prior art keywords
- communicated
- pipe bundle
- bundle drier
- steam
- pipe
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/12—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices
- F26B11/16—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices the stirring device moving in a vertical or steeply-inclined plane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a vacuum tube bundle drying machine. A feed port is formed in one side of the tube bundle drying machine, and a discharge port is formed in the other side; a waste steam outlet is formed in a shell of the tube bundle drying machine; rotating shafts at two ends of a tube bundle of the tube bundle drying machine are movably connected with the shell through mechanical seals; one ends of the rotating shafts are connected with transmission devices; the rotating shafts are hollow shafts, and inner cavities thereof are communicated with the tube bundle of the tube bundle drying machine; the rotating shaft on one side of the discharge port of the tube bundle drying machine is communicated with a steam intake device; the rotating shaft on one side of the feed port of the tube bundle drying machine is communicated with a condensed water drainage device; the feed port of the tube bundle drying machine is communicated with a feeding device; the discharge port of the tube bundle drying machine is communicated with a discharge device; and a waste steam outlet of the tube bundle drying machine is communicated with a waste steam treatment device. The vacuum tube bundle drying machine is simple in structure, convenient for use, low in manufacturing cost and wide in application range, can preferably reduce the steam temperature needed by material drying, reduces the energy consumption, reduces the waste steam emission, and achieves the purposes of energy conservation and emission reduction.
Description
technical field:
The invention belongs to the bulk material such as powder, particle drying equipment technical field, be specifically related to a kind of vacuum pipe bundle drier.
background technology:
Pipe bundle drier is a kind of indirect contact drier, is widely used in the drying of the bulk material of the industries such as chemical industry, light industry, food, Fodder and food, if powdery, graininess, sheet class are without the material of too large viscosity.Pipe bundle drier drives tube bank to rotate by motor and reductor, material enters in drying machine through feeding packing auger from charging aperture, by the flight being contained in tube bank peripheral, material is taken up, and constantly pushing to discharging opening one end from charging aperture one end, material is taken up by flight and is fallen under gravity between tube bank to top.
High-temperature steam enters in tube bank pipe from the swivel joint of discharging opening one end of pipe bundle drier, flow along tube bank pipe inside to charging aperture one end of pipe bundle drier, high-temperature steam heating tube beam tube, heat exchange is carried out through heat trnasfer and heat radiation and wet stock, moisture in interbank material is evaporated, steam-condensation in tube bank is discharged by charging aperture one end swivel joint of pipe bundle drier, can make to be evaporated drying by moisture in material by this process.
But, existing pipe bundle drier is all carry out drying to wet stock at ambient pressure, existing pipe bundle drier thermal source used is the raw steam of high temperature, the frequent Yin Wendu of dried material is too high and be charred phenomenon, causes dried materials quality to decline, containing being charred smell in the exhaust steam that dry wet material produces, directly enter air, cause air pollution, high temperature drying energy resource consumption is high, and is not suitable for the drying of the materials such as seed.
summary of the invention:
In sum, in order to overcome the deficiency of prior art problem, the invention provides a kind of vacuum pipe bundle drier, it is on the basis of existing pipe bundle drier, the casing internal of pipe bundle drier is transformed into an airtight subatmospheric vacuum seal space, wet stock is made to carry out drying under vacuum, low temperature drying can be realized under vacuum condition, dried material is avoided to be charred phenomenon, in material, moisture is more easily vaporized, the dry waste vapour produced is saturated vapor, saturated vapor obtains condensation in surface condenser, and directly do not enter in air, the dry pollution that air is caused under avoiding normal pressure.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of vacuum pipe bundle drier, wherein: comprise feed arrangement, pipe bundle drier, drawing mechanism, steam steam inlet device, condensed water outlet device and treater for waste gas, the side of described pipe bundle drier arranges charging aperture, opposite side arranges discharging opening, the housing of pipe bundle drier is arranged waste vapour outlet, the rotating shaft at the tube bank two ends of described pipe bundle drier is flexibly connected by mechanical seal with housing, one end connection for transmission device of rotating shaft, described rotating shaft is hollow shaft, the tube bank of its inner space pipe bundle drier, the rotating shaft of the discharging opening side of pipe bundle drier is communicated with steam steam inlet device, the rotating shaft of the charging aperture side of pipe bundle drier is communicated with condensed water outlet device, the charging aperture of pipe bundle drier is communicated with feed arrangement, the discharging opening of described pipe bundle drier is communicated with drawing mechanism, the waste vapour outlet treater for waste gas of described pipe bundle drier.
Technical scheme of the present invention can also be achieved in that described feed arrangement comprises feeder, batch mixing auger and feeding packing auger, the discharging opening of described feeder is communicated with the charging aperture of batch mixing auger, the discharging opening of batch mixing auger is communicated with the charging aperture of feeding packing auger, the discharging opening of feeding packing auger is communicated with the charging aperture of pipe bundle drier, and described feeding packing auger is airtight auger.
Technical scheme of the present invention can also be achieved in that described treater for waste gas comprises vavuum pump, surface condenser, cleaning dust device, condensate pump and condensation water collection tank, the air intake of described cleaning dust device is exported by the waste vapour of connecting pipe of pipeline bundle drying machine, the air intake of the venthole communicating surface condenser of cleaning dust device, the venthole of surface condenser is communicated with the air intake of vavuum pump, the condensation-water drain of described surface condenser is communicated with the water inlet of condensation water collection tank, the delivery port of condensation water collection tank is communicated with condensate pump, the atomizer of condensate pump outlet cleaning dust device and outer row pipeline, the cooling water inlet of described surface condenser is communicated with cooling water source, the coolant outlet of surface condenser is communicated with cooling water reclaim line.
Technical scheme of the present invention can also be achieved in that described steam steam inlet device comprises vapour source, steam transmitting pipe and steam swivel joint, vapour source connects the stiff end of steam swivel joint by steam transmitting pipe, and the movable end of steam swivel joint connects the rotating shaft of pipe bundle drier.
Technical scheme of the present invention can also be achieved in that described condensed water outlet device comprises condensation swivel joint, water-supply-pipe, steam trap and collecting tank, condensation swivel joint connects rotating shaft and the water-supply-pipe of the charging aperture side of pipe bundle drier, water-supply-pipe is communicated with collecting tank, and the pipeline between water-supply-pipe and collecting tank arranges steam trap.
Technical scheme of the present invention can also be achieved in that described steam transmitting pipe and water-supply-pipe are metal hose.
Technical scheme of the present invention can also be achieved in that described drawing mechanism is airtight discharging auger, the charging aperture of airtight discharging auger is communicated with the discharging opening of pipe bundle drier, and the discharging opening of airtight discharging auger is communicated with the charging aperture of material package device and batch mixing auger.
Beneficial effect of the present invention is:
1, the present invention is on the basis of existing pipe bundle drier, the casing internal of pipe bundle drier is transformed into an airtight subatmospheric vacuum seal space, wet stock is made to carry out drying under vacuum, the raw steam that temperature is lower can be adopted under vacuum condition, realize low temperature drying, dried material is avoided to be charred phenomenon, in material, moisture is more easily vaporized, the dry waste vapour produced is saturated vapor, saturated vapor obtains condensation in surface condenser, and directly do not enter in air, not only save the energy, and the dry pollution that air is caused under avoiding normal pressure.
2, the present invention is by mechanical seal, closed-type feed auger and the sealing of airtight discharging auger realization to pipe bundle drier shell intracorporeal space, by vavuum pump extracting vacuum, thus the vacuum realized in pipe bundle drier housing, realize carrying out drying to material under vacuum, reach and reduce dry temperature required object.
The temperature of raw steam required when 3, the present invention carries out drying to wet stock is relatively low, there will not be material to be charred phenomenon, ensures quality of material, can not damage, thus make the present invention also can be used for the drying of seed material to material.Meanwhile, also can not produce and be charred waste gas.
4, the present invention arranges treater for waste gas, and the gas that in wet stock, moisture evaporation produces first is admitted to surface condenser condensation, condensation water recovery and use after cleaning dust process, and a small amount of incondensable gas is discharged, and the waste gas of discharge can not atmosphere pollution.
5, the discharging opening of discharging sealing auger of the present invention is communicated with charging aperture and the material package device of batch mixing auger, batch mixing auger is admitted to through dried partial material, fully be uniformly mixed with new wet stock in batch mixing auger, dry material mixes mutually with wet stock, can effectively prevent from entering the bonding phenomenon of the material in pipe bundle drier because of the too high appearance of moisture.
6, structure of the present invention is simple, easy to use, cost is low, applied range, can be good at the temperature reducing the required raw steam of dry materials, reduces energy resource consumption, improve by the quality of material drying, reduce toxic emission, reach energy-saving and emission-reduction object.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, a kind of vacuum pipe bundle drier, comprise feed arrangement, pipe bundle drier 1, drawing mechanism, steam steam inlet device, condensed water outlet device and treater for waste gas, the side of described pipe bundle drier 1 arranges charging aperture 3, opposite side arranges discharging opening 4, the charging aperture 3 of pipe bundle drier 1 is communicated with feed arrangement, described feed arrangement comprises feeder 26, batch mixing auger 8 and feeding packing auger 9, the discharging opening of described feeder 26 is communicated with the charging aperture of batch mixing auger 8, the discharging opening of batch mixing auger 8 is communicated with the charging aperture of feeding packing auger 9, the discharging opening of feeding packing auger 9 is communicated with the charging aperture 3 of pipe bundle drier 1, described feeding packing auger 9 is airtight auger.The discharging opening 4 of pipe bundle drier 1 is communicated with drawing mechanism, drawing mechanism is airtight discharging auger 2, the charging aperture of airtight discharging auger 2 is communicated with the discharging opening 4 of pipe bundle drier 1, and the discharging opening of airtight discharging auger 2 is communicated with the charging aperture of material package device 23 and batch mixing auger 8.
The housing 5 of pipe bundle drier 1 is arranged waste vapour outlet 6, waste vapour outlet 6 is communicated with treater for waste gas, treater for waste gas comprises vavuum pump 10, surface condenser 11, cleaning dust device 12, condensate pump 13 and condensation water collection tank 14, the air intake of described cleaning dust device 12 exports 6 by the waste vapour of connecting pipe of pipeline bundle drying machine 1, the air intake of the venthole communicating surface condenser 11 of cleaning dust device 12, the venthole of surface condenser 11 is communicated with the air intake of vavuum pump 10, the condensation-water drain of described surface condenser 11 is communicated with the water inlet of condensation water collection tank 14, the delivery port of condensation water collection tank 14 is communicated with condensate pump 13, the atomizer of condensate pump 13 outlet cleaning dust device 12 and outer row pipeline, the cooling water inlet of described surface condenser 11 is communicated with cooling water source, the coolant outlet of surface condenser 11 is communicated with cooling water reclaim line 15.
The rotating shaft 7 at tube bank 24 two ends of pipe bundle drier 1 is flexibly connected by mechanical seal 25 with housing 5, one end connection for transmission device 29 of rotating shaft 7, rotating shaft 7 is hollow shaft, the tube bank 24 of its inner space pipe bundle drier 1, the rotating shaft 7 of discharging opening 4 side of pipe bundle drier 1 is communicated with steam steam inlet device, steam steam inlet device comprises vapour source 16, steam transmitting pipe 17 and steam swivel joint 18, vapour source 16 connects the stiff end of steam swivel joint 18 by steam transmitting pipe 17, the movable end of steam swivel joint 18 connects the rotating shaft 7 of pipe bundle drier 1, and steam transmitting pipe 17 is metal hose.
The rotating shaft 7 of charging aperture 3 side of pipe bundle drier 1 is communicated with condensed water outlet device, condensed water outlet device comprises condensation swivel joint 19, water-supply-pipe 20, steam trap 21 and collecting tank 22, condensation swivel joint 19 connects rotating shaft 7 and the water-supply-pipe 20 of charging aperture 3 side of pipe bundle drier 1, water-supply-pipe 20 is communicated with collecting tank 22, pipeline between water-supply-pipe 20 and collecting tank 22 is arranged steam trap 21, water-supply-pipe 20 is metal hose.
During use, open vavuum pump 10, start transmission device 29, the air in pipe bundle drier 1 is taken away by vavuum pump 10, makes to be in vacuum state in pipe bundle drier 1, and transmission device 29 drives the rotating shaft 7 of pipe bundle drier 1 and tube bank 24 to rotate.Start feeding auger, batch mixing auger 8 and feeding packing auger 9, vapour source 16 carries raw steam to pipe bundle drier 1, wet stock enters batch mixing auger 8 from feeder 26, feeding packing auger 9 is admitted to after batch mixing auger 8 is carried, finally enter in the housing 5 of pipe bundle drier 1 from the charging aperture 3 of pipe bundle drier 1, tube bank 24 is rotated, the peripheral copy plate arranged of tube bank 24 takes up material, material is transported to the top of housing 5, then material falls under Gravitative Loads, be scattered between tube bank 24, raw steam is through steam transmitting pipe 17, steam swivel joint 18 and rotating shaft 7 enter tube bank 24 inner chamber, flow at tube bank 24 inner chamber, in the process, the heat of raw steam carries out heat exchange through restraining 24 tube walls with the wet stock outside tube bank 24, the condensation of raw steam radiating and cooling, wet stock absorbs heat, moisture evaporation in wet stock, wet stock is dried, raw steam cooling is condensed into condensed water, then collecting tank 22 is admitted to through water-supply-pipe 20 and steam trap 21.
Dried material through the discharging opening 4 of pipe bundle drier 1 discharged to airtight discharging auger 2, after airtight discharging auger 2 transports, partial material is sent to packing device 23, partial material is also had to be admitted to batch mixing auger 8, fully be uniformly mixed with new wet stock in batch mixing auger 8, dry material can tentatively in the moisture in wet stock, effectively prevent from entering the bonding phenomenon that the material in pipe bundle drier 1 also occurs because moisture is excessive.
The moisture evaporated in wet stock dry run, waste vapour outlet 6 on pipe bundle drier 1 housing 5 is sent to cleaning dust device 12, by cleaning dust in cleaning dust device 12, then surface condenser 11 is admitted to, in surface condenser 11, waste gas is condensed liquefaction, and condensed water is admitted to condensate collector, part incondensable gas is extracted out, discharged to air by vavuum pump 10.
Be noted that, the above embodiment is unrestricted to the explanation of technical solution of the present invention, the equivalent replacement of art those of ordinary skill or other amendment made according to prior art, as long as do not exceed thinking and the scope of technical solution of the present invention, all should be included within interest field of the presently claimed invention.
Claims (7)
1. a vacuum pipe bundle drier, it is characterized in that: comprise feed arrangement, pipe bundle drier (1), drawing mechanism, steam steam inlet device, condensed water outlet device and treater for waste gas, the side of described pipe bundle drier (1) arranges charging aperture (3), opposite side arranges discharging opening (4), the housing (5) of pipe bundle drier (1) is arranged waste vapour outlet (6), the rotating shaft (7) at tube bank (24) two ends of described pipe bundle drier (1) is flexibly connected by mechanical seal (25) with housing (5), one end connection for transmission device of rotating shaft (7), described rotating shaft (7) is hollow shaft, the tube bank (24) of its inner space pipe bundle drier (1), the rotating shaft (7) of discharging opening (4) side of pipe bundle drier (1) is communicated with steam steam inlet device, the rotating shaft (7) of charging aperture (3) side of pipe bundle drier (1) is communicated with condensed water outlet device, the charging aperture (3) of pipe bundle drier (1) is communicated with feed arrangement, the discharging opening (4) of described pipe bundle drier (1) is communicated with drawing mechanism, waste vapour outlet (6) of described pipe bundle drier (1) is communicated with treater for waste gas.
2. vacuum pipe bundle drier according to claim 1, it is characterized in that: described feed arrangement comprises feeder (26), batch mixing auger (8) and feeding packing auger (9), the discharging opening of described feeder (26) is communicated with the charging aperture of batch mixing auger (8), the discharging opening of batch mixing auger (8) is communicated with the charging aperture of feeding packing auger (9), the discharging opening of feeding packing auger (9) is communicated with the charging aperture (3) of pipe bundle drier (1), and described feeding packing auger (9) is airtight auger.
3. vacuum pipe bundle drier according to claim 1, it is characterized in that: described treater for waste gas comprises vavuum pump (10), surface condenser (11), cleaning dust device (12), condensate pump (13) and condensation water collection tank (14), the air intake of described cleaning dust device (12) exports (6) by the waste vapour of connecting pipe of pipeline bundle drying machine (1), the air intake of the venthole communicating surface condenser (11) of cleaning dust device (12), the venthole of surface condenser (11) is communicated with the air intake of vavuum pump (10), the condensation-water drain of described surface condenser (11) is communicated with the water inlet of condensation water collection tank (14), the delivery port of condensation water collection tank (14) is communicated with condensate pump (13), the atomizer of condensate pump (13) outlet cleaning dust device (12) and outer row pipeline, the cooling water inlet of described surface condenser (11) is communicated with cooling water source, the coolant outlet of surface condenser (11) is communicated with cooling water reclaim line (15).
4. vacuum pipe bundle drier according to claim 1, it is characterized in that: described steam steam inlet device comprises vapour source (16), steam transmitting pipe (17) and steam swivel joint (18), vapour source (16) connects the stiff end of steam swivel joint (18) by steam transmitting pipe (17), and the movable end of steam swivel joint (18) connects the rotating shaft (7) of pipe bundle drier (1).
5. vacuum pipe bundle drier according to claim 1, it is characterized in that: described condensed water outlet device comprises condensation swivel joint (19), water-supply-pipe (20), steam trap (21) and collecting tank (22), condensation swivel joint (19) connects the rotating shaft (7) of charging aperture (3) side of pipe bundle drier (1) and water-supply-pipe (20), water-supply-pipe (20) is communicated with collecting tank (22), the pipeline between water-supply-pipe (20) and collecting tank (22) is arranged steam trap (21).
6. vacuum pipe bundle drier according to claim 5, is characterized in that: described water-supply-pipe (20) and steam transmitting pipe (17) are metal hose.
7. vacuum pipe bundle drier according to claim 1, it is characterized in that: described drawing mechanism is airtight discharging auger (2), the charging aperture of airtight discharging auger (2) is communicated with the discharging opening (4) of pipe bundle drier (1), and the discharging opening of airtight discharging auger (2) is communicated with the charging aperture of material package device (23) and batch mixing auger (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985480.6A CN105466174B (en) | 2015-12-25 | 2015-12-25 | Vacuum pipe bundle drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985480.6A CN105466174B (en) | 2015-12-25 | 2015-12-25 | Vacuum pipe bundle drier |
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| Publication Number | Publication Date |
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| CN105466174A true CN105466174A (en) | 2016-04-06 |
| CN105466174B CN105466174B (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510985480.6A Active CN105466174B (en) | 2015-12-25 | 2015-12-25 | Vacuum pipe bundle drier |
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| CN (1) | CN105466174B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314644A (en) * | 2017-08-10 | 2017-11-03 | 阜阳华润电力有限公司 | A kind of coal slime drier |
| CN109442966A (en) * | 2018-12-25 | 2019-03-08 | 郑州万谷机械股份有限公司 | A kind of heat-pump-type pipe bundle drier |
| CN109489458A (en) * | 2018-12-26 | 2019-03-19 | 郑州博大浓缩干燥设备有限公司 | The cooling tube bank cooling system of powder granule shape material |
| CN110671907A (en) * | 2019-11-02 | 2020-01-10 | 郑州博大浓缩干燥设备有限公司 | MVR vacuum tube bundle drying system with waste steam conversion device |
| CN114413580A (en) * | 2022-01-22 | 2022-04-29 | 浙江杰为凯过滤科技有限公司 | Continuous vacuum low-temperature drying process and complete equipment |
| CN114754564A (en) * | 2022-05-13 | 2022-07-15 | 江苏格兰特干燥浓缩设备有限公司 | Low-energy-consumption tube bundle drying machine and using method thereof |
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| CN2333988Y (en) * | 1998-05-05 | 1999-08-18 | 李振录 | Horizontal screwed pipe bundle dryer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314644A (en) * | 2017-08-10 | 2017-11-03 | 阜阳华润电力有限公司 | A kind of coal slime drier |
| CN109442966A (en) * | 2018-12-25 | 2019-03-08 | 郑州万谷机械股份有限公司 | A kind of heat-pump-type pipe bundle drier |
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| CN110671907A (en) * | 2019-11-02 | 2020-01-10 | 郑州博大浓缩干燥设备有限公司 | MVR vacuum tube bundle drying system with waste steam conversion device |
| CN114413580A (en) * | 2022-01-22 | 2022-04-29 | 浙江杰为凯过滤科技有限公司 | Continuous vacuum low-temperature drying process and complete equipment |
| CN114754564A (en) * | 2022-05-13 | 2022-07-15 | 江苏格兰特干燥浓缩设备有限公司 | Low-energy-consumption tube bundle drying machine and using method thereof |
| CN116428835A (en) * | 2022-05-13 | 2023-07-14 | 江苏格兰特干燥浓缩设备有限公司 | Use process of tube bundle dryer |
| CN116428835B (en) * | 2022-05-13 | 2023-11-24 | 江苏格兰特干燥浓缩设备有限公司 | Use process of tube bundle dryer |
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| Publication number | Publication date |
|---|---|
| CN105466174B (en) | 2018-01-19 |
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Inventor after: Sun Faxi Inventor after: Sun Shuaiqiang Inventor after: Sun Xiaoquan Inventor after: Cui Xinyuan Inventor after: Chen Yongqiang Inventor after: Li Wenjuan Inventor after: Zhang Zhaoqi Inventor after: Li Shihang Inventor before: Sun Faxi |
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Effective date of registration: 20171225 Address after: Baisha Town Zheng Dong District 450046 Henan city of Zhengzhou Province Li Hu Qiao Cun west 100 meters Applicant after: ZHENGZHOU BODA CONCENTRATED DRYING EQUIPMENT CO.,LTD. Address before: 450046, Henan Zheng Dong New District, Zhengzhou Province, CBD business circle road 13 green summit, room 1103 Applicant before: Sun Faxi |
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Denomination of invention: Vacuum tube bundle dryer Effective date of registration: 20230224 Granted publication date: 20180119 Pledgee: Bank of China Limited by Share Ltd. Zhengzhou high tech Development Zone Branch Pledgor: ZHENGZHOU BODA CONCENTRATED DRYING EQUIPMENT CO.,LTD. Registration number: Y2023980033405 |
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