CN203447804U - Mass transfer and reaction device of rotary filler bed for shearing airflow reversely - Google Patents
Mass transfer and reaction device of rotary filler bed for shearing airflow reversely Download PDFInfo
- Publication number
- CN203447804U CN203447804U CN201320553300.3U CN201320553300U CN203447804U CN 203447804 U CN203447804 U CN 203447804U CN 201320553300 U CN201320553300 U CN 201320553300U CN 203447804 U CN203447804 U CN 203447804U
- Authority
- CN
- China
- Prior art keywords
- mass transfer
- filler
- rotary table
- air
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model belongs to the technical field of mass transfer reaction devices and in particular relates to a mass transfer and reaction device of a rotary filler bed for shearing airflow reversely. Through the mass transfer and reaction device, the problem of a current super-gravity device in gas-phase mass transfer aspect is solved. The mass transfer and reaction device of the rotary filler bed for shearing airflow reversely comprises a rotary bed body, a device bracket and a transmission device, wherein the rotary bed body comprises an upper part and a lower part, namely, a gas collecting chamber and a main chamber respectively; a filler rotor capable of rotating at high speed is arranged in the main chamber; the upper part of the main chamber is connected to a gas inlet pipe; the bottom of the main chamber is connected to a liquid discharging pipe; a liquid distributor is arranged in the center of the filler rotor and is connected to a liquid inlet pipe; the top of the gas collecting chamber is connected to a gas exhausting pipe; a top open hole of the filler rotor is communicated with the gas collecting chamber. The mass transfer and reaction device has the advantages that the shearing stress for the flow can be increased; more momentum is transmitted to the inner flow by the filler, so that the separation of boundary layers of gas and liquid is accelerated; the turbulence degree is aggravated; the updating speed of an interface between the gas and the liquid is accelerated, so that the aim of strengthening gas-phase mass transfer is achieved; the operation stability is improved, so that the mass transfer and reaction device is particularly applicable to places with a large flux; due to the adoption of the gas collecting chamber, the influence on operation balance caused due to entrainment and flooding can be effectively suppressed.
Description
Technical field
The utility model belongs to the technical field of chemical industry, petrochemical industry, environmental protection mass transfer reaction equipment, is specifically related to the rotary packed bed mass transfer of the reverse shearing of a kind of air-flow and consersion unit, can be used for the mass transport process strengthening that the air films such as rectifying, absorption are controlled.
Background technology
High-gravity technology is a kind of disruptive technology of strengthening heterogeneous transfer reaction process growing up the eighties in 20th century, its principle is in hypergravity rotary packed bed (also referred to as hypergravity machine), filler rotor high-speed rotates to form Elevated Gravity, liquid is sheared atomization by filler, alternate contact area increases, and surface is upgraded and caused being greatly strengthened by the facies-controlled mass transfer of liquid, heat transfer and course of reaction fast.Be mainly used at present desulfurization, decarburization, dedusting and nano material and the aspect such as prepare.
Conventional rotary packed bed inner rotator is monolithic construction at present, be that filler in rotor is by single rotating shaft driven rotary, the patent of first high-gravity rotating bed aspect is proposed in 1979 by Britain Imperial Chemical Industries (ICI), the patent No. is EP0002568, and at home and abroad disclosed patent has also continued this rotor structure substantially successively subsequently.Calendar year 2001, the people such as Sandilya study discovery, the mass transferring in gas phase process of carrying out in rotary packed bed, also low than in packed tower of its mass tranfer coefficient, reason is to be subject to frictional force effect after gas enters filler, very little with the relative sliding velocity between filler, gas phase interface can not get quick renewal, and in filler, the phenomenon of liquid distribution inequality can make mass transfer rate further reduce simultaneously.2004, the people's such as D P Rao research showed, mainly strengthened mass transfer in liquid phase process in high-gravity rotating bed, and under super gravity field, the use of high-specific surface area filler is its main cause, and gas phase mass transfer coefficient is suitable with conventional filler tower.2005, Chandra A has proposed layer-stepping filler revolving bed (Rotating Packed bed with Split Packing first, SP-RPB), common rotary packed bed interior unitary rotor filler is divided into the mutually nested packing ring of some circles, and this improvement has improved the tangential sliding velocity of gas phase in rotation filler.2006, the people such as Reddy studied the mass-transfer performance of SP-RPB, and result shows that the gas phase of this equipment and liquid phase volume mass tranfer coefficient have improved nearly 2 orders of magnitude than common revolving bed.The people such as Agarwal have done a series of rectifying and absorption experiment with SP-RPB, and result shows that SP-RPB is particularly suitable for strengthening the mass transport process that gas phase drag is controlled.But there are some problems in SP-RPB equally, as: rotor center or little by paracentral position radius of turn, gas is difficult to obtain larger tangential velocity by the High Rotation Speed of filler, and gas phase less turbulence is not enough, and skewness radially, filler utilization rate is lower; Filler is used foam metal to be directly fixed on lower rotary table, is difficult for changing, and only relies on the mechanical strength of foam metal self during work, is difficult to be applied to the occasion of atmosphere, liquid flux.
Summary of the invention
The utility model, in order to solve existing hypergravity equipment in the problem existing aspect mass transferring in gas phase, provides the rotary packed bed mass transfer of the reverse shearing of a kind of air-flow and consersion unit, can be applicable to the occasion that flux is large, processing requirements is high.
The utility model adopts following technical scheme to realize:
The rotary packed bed mass transfer of the reverse shearing of a kind of air-flow and consersion unit, comprise revolving bed main body, equipment supporter and transmission device, revolving bed main body comprises upper and lower two parts: collection chamber and main chamber, in main chamber, be provided with can High Rotation Speed filler rotor, main chamber top connects air inlet pipe, main chamber's bottom connected drainage pipe, filler rotor center arranges liquid distribution trough, liquid distribution trough connects feed tube, and collection chamber top connects blast pipe, and the perforate of filler rotor top is communicated with collection chamber.
Described filler rotor comprises top rotary table and the lower rotary table of independent rotation respectively, top rotary table bottom and lower rotary table top are separately installed with some concentric annular packing supports, packing support inside is filled with filler and forms packing ring, packing ring setting nested against one another on upper and lower rotating disk, between adjacent packing ring, leave gap, top rotary table top is connected with solid shafting, and lower rotary table bottom is connected with hollow shaft, hollow shaft top connects liquid distribution trough, and hollow shaft bottom connects feed tube.
Described top rotary table bottom and lower rotary table top are respectively arranged with the groove of some concentric annular, and packing ring is fixed in groove, and it is interior and leave gap with the bottom land of another rotating disk that the free end of packing ring stretches into the groove of another rotating disk.
Main chamber and collection chamber are isolated by dividing plate, and the perforate of dividing plate center also arranges tubular construction, and solid shafting is connected with top rotary table through this hole.
The position that described filler rotor top perforate is communicated with collection chamber arranges hermetically-sealed construction, described hermetically-sealed construction comprises top cover labyrinth setting up and down and lower sealing cover, top cover labyrinth is placed on tubular construction, lower sealing cover is connected with top rotary table, lower sealing cover center is uniform arranges some scallop holes, upper and lower seal cover is provided with labyrinth ring, and the labyrinth ring of upper and lower seal cover is embedded in together mutually, and the outmost turns of labyrinth ring arranges oil sealing felt collar.
Described packing support is tubular stainless steel coil, circumferentially densely covered perforate, the outer rim of packing support is provided with some form drag parts, described form drag part is that described form drag part is Metal Flake projection, at right angle setting is in the outer rim of packing support, the arc in the cross section of Metal Flake projection or platform shape.
Between described hollow shaft and feed tube, use swivel joint to be connected.
Described air inlet pipe connects main chamber through collection chamber.
Described transmission device comprises that hollow shaft, solid shafting, belt pulley, belt and motor form, and negative pulley wheel is all equipped with in hollow shaft and solid shafting outer end, by belt, is connected with motor.
Whole revolving bed main body and motor are installed on equipment supporter, and revolving bed main body is fixed on carriage center place by deck, and motor is fixed in the T-slot at the upper and lower position of support, and motor set bolt can slide in T-slot.
Compared with prior art, the beneficial effects of the utility model are: 1. the form drag part that respectively encloses packing layer edge structure can increase the shear stress of convection cell, filler by more momentum transfer to internal flow, promote the boundary layer separation of gas-liquid, less turbulence aggravation, accelerate gas-liquid interface renewal rate, thereby reach the object of strengthening mass transferring in gas phase; 2. use porous stainless steel packing support member, improved run stability, be more suitable for the occasion of large flux, and revolving bed filler used is easy to change; 3. the distribution of gas-liquid fluid in filler is more even, and microcosmic mixability improves.4. first gas out enter collection chamber from rotor center, then through blast pipe, discharges.Collection chamber can hold a certain amount of liquid being blown out by gas, has effectively suppressed to carry secretly impact operation balance being brought with liquid flooding.
Accompanying drawing explanation
Fig. 1 is the rotary packed bed equipment body schematic diagram of the reverse shearing of the utility model air-flow;
Fig. 2 is a kind of structural representation of the utility model form drag part;
Fig. 3 is the another kind of structural representation of the utility model form drag part;
Fig. 4 is the assembling schematic diagram of packing ring on lower rotary table on the utility model;
Fig. 5 is the utility model internal structure schematic diagram;
In figure: 1-air inlet pipe, 2-blast pipe, 3-revolving bed main body, 4-discharging tube, 5-swivel joint, 6-belt, 7-equipment supporter, 8-T type groove, 9-motor, 10-belt pulley ，11-main chamber, 12-packing ring, 13-liquid distribution trough, 14-hollow shaft, 15-bearing, 16-axle sleeve I, 17-lower rotary table, 18-top rotary table, 19-top cover labyrinth, 20-collection chamber, 21-axle sleeve II, 22-solid shafting, 23-oil sealing, 24-lower sealing cover, 25-dividing plate.
The specific embodiment
By reference to the accompanying drawings the specific embodiment of the present utility model is described further.
The rotary packed bed mass transfer of the reverse shearing of air-flow and consersion unit, mainly comprise revolving bed main body, equipment supporter and transmission device.Revolving bed main body is divided into collection chamber He Xia main chamber two parts, between collection chamber and main chamber, by dividing plate, separates; Filler rotor is arranged in main chamber, by the upper and lower rotating disk that can independently rotate, formed, upper lower rotary table is at a distance of 30mm, concentric annular packing support is respectively housed on rotating disk, inner filling metal wire packing, the filler on upper and lower rotating disk forms mutually nested packing ring with packing support, and the thickness of packing ring is 16mm, adjacent packing layer spacing is 8mm, and the outer rim of packing ring is installed form drag part; Top rotary table is connected with top solid shafting, and lower rotary table is connected with bottom hollow shaft; Air inlet pipe enters main chamber through collection chamber, and liquid is entered the liquid distribution trough of rotor center by hollow shaft, and blast pipe is located at collection chamber top, and discharging tube is located at a body bottom.The perforate of filler rotor top is communicated with collection chamber.
Described packing ring one end is fixed in the groove that upper and lower rotating disk opens by packing support, and the degree of depth of groove is 10mm, and the free end of packing ring stretches into another rotating disk 6mm, leaves gap with the bottom land of another rotating disk, plays movable sealing effect.Packing support is cylindric stainless steel coil, and the perforate of circumferentially gathering, as the passage of fluid.
The position that the perforate of filler rotor top is communicated with collection chamber arranges hermetically-sealed construction, described hermetically-sealed construction is comprised of top cover labyrinth and lower sealing cover, it on seal cover, is the labyrinth ring of thickness 4mm degree of depth 30mm, the labyrinth ring that upper-lower seal covers is embedded in together mutually, and the outmost turns of labyrinth seal arranges oil sealing felt collar and carrys out reinforced seal effect.Main chamber and collection chamber are isolated by dividing plate, the perforate of dividing plate center also arranges tubular construction, and solid shafting and Upper shaft sleeve II thereof are connected with top rotary table through tubular construction, and top cover labyrinth is placed on tubular construction, lower sealing cover is connected with top rotary table, and lower sealing cover center is uniform arranges some scallop holes.The center drilling of upper-lower seal lid is simultaneously again as gas passage.
Described form drag part is Metal Flake projection, at right angle setting is in the outer rim of packing support, the arc in the cross section of Metal Flake projection or platform shape, upper lower rotary table high speed counter-rotating during rotary packed bed work, form drag part can cause extremely strong disturbance to the air-flow through filler gap, gas phase turbulence aggravation.
Described liquid distribution trough is the stainless steel tube of circumferential perforate, and size and the number of openings in aperture determine by process conditions such as flow and flow rate of liquid, and liquid distribution trough joins by screw thread and the lower rotary table of pipe tail.
In described transmission device, the shaft seal that approaches rotor place adopts TC type outside framework oil seal, and the outer end of axle adopts oil sealing felt-ring seal; Bed body case junction adopts the sealing of polyurethane rubber circle.
Between described hollow shaft and feed tube, by swivel joint, be connected, require swivel joint to there is the working strength of the resistance to 1500r/min of being less than or equal to and certain corrosion resistance.
Described transmission device is comprised of axle, bearing, bearing holder (housing, cover), belt pulley, belt and motor, upper main shaft is solid shafting, lower main axis is the hollow shaft of internal diameter 16mm, because the cooperation of upper and lower rotating disk is had relatively high expectations, therefore bearing is the combination of deep groove ball bearing and thrust bearing, can prevent that turning cylinder is at axial micro-displacement, axle and bearing are all arranged in bearing holder (housing, cover), and axle sleeve leaves the duct of apply oil.Negative pulley wheel is equipped with in the upper end of axle, by belt, is connected with motor, and motor speed regulates with frequency converter.Whole bed body and motor are installed on equipment supporter, and bed body is used deck to be fixed on carriage center place, and motor is fixed in the T-slot at the upper and lower position of support, and motor set bolt can slide in T-slot, thereby regulate the distance between motor and bed body.
Under duty, liquid is transported to the liquid distribution trough of rotor central authorities by hollow shaft, then from the aperture of distributor, radially spray, enter the filler of High Rotation Speed, liquid is subject to the dissection of filler, becomes liquid film, drop that yardstick is very little, gas is transported to revolving bed main chamber by air inlet pipe, outer rim along rotor under the promotion of pressure enters in the filler of rotation, carries out counter current contacting with liquid, completes and absorbs or course of reaction.Finally, the liquid throwing away from rotor is intercepted and captured and flows down along shell wall by the shell of main chamber, from underlaid discharging tube, discharges, and gas enters collection chamber by rotor central authorities through the perforate in the middle of labyrinth sealing, then from the blast pipe at bed body top, discharges.Gas, liquid are constantly sheared by the multiple filling layers of counter-rotating in rotor, break-in repeatedly occurs and distribute, and with common rotary packed bed comparing, gas phase can improve an order of magnitude with the relative tangential sliding velocity between filler; Form drag part can further promote the turbulent flow of gas phase, and filler passes to fluid by more kinetic energy, and tubulence energy increases, and has accelerated boundary renewal rate; The flow trace of gas-liquid is more tortuous, and the time of staying is proper extension also, therefore the mass transfer rate between gas-liquid is greatly improved, this is also the dominant mechanism of the rotary packed bed strengthening mass transfer of the reverse shearing of air-flow.
Claims (10)
1. the rotary packed bed mass transfer of the reverse shearing of air-flow and consersion unit, comprise revolving bed main body (3), equipment supporter (7) and transmission device, it is characterized in that revolving bed main body (3) comprises upper and lower two parts: collection chamber (20) and main chamber (11), in main chamber (11), be provided with can High Rotation Speed filler rotor, main chamber (11) top connects air inlet pipe (1), main chamber (11) bottom connected drainage pipe (4), filler rotor center arranges liquid distribution trough (13), liquid distribution trough (13) connects feed tube, collection chamber (20) top connects blast pipe (2), the perforate of filler rotor top is communicated with collection chamber (20).
2. the rotary packed bed mass transfer of the reverse shearing of air-flow according to claim 1 and consersion unit, it is characterized in that described filler rotor comprises top rotary table (17) and the lower rotary table (17) of independent rotation respectively, top rotary table (18) bottom and lower rotary table (17) top are separately installed with some concentric annular packing supports, packing support inside is equipped with filler and is formed packing ring (12), on, packing ring on lower rotary table is nested against one another, between adjacent packing ring, leave gap, top rotary table (18) top is connected with solid shafting (22), lower rotary table (17) bottom is connected with hollow shaft (14), hollow shaft (14) top connects liquid distribution trough (13), hollow shaft (14) bottom connects feed tube.
3. the rotary packed bed mass transfer of the reverse shearing of air-flow according to claim 2 and consersion unit, it is characterized in that the groove that described top rotary table (18) bottom and lower rotary table (17) top are respectively arranged with some concentric annular, packing ring (12) is fixed in groove, and the free end of packing ring stretches in the groove of another rotating disk and leaves gap with the bottom land of another rotating disk.
4. according to the rotary packed bed mass transfer of the reverse shearing of the air-flow described in claim 2 or 3 and consersion unit, it is characterized in that main chamber (11) and collection chamber (20) are by dividing plate (25) isolation, dividing plate (25) center perforate also arranges tubular construction, and solid shafting (22) is connected with top rotary table (18) through this hole.
5. the rotary packed bed mass transfer of the reverse shearing of air-flow according to claim 4 and consersion unit, it is characterized in that the position that described filler rotor top perforate is communicated with collection chamber arranges hermetically-sealed construction, described hermetically-sealed construction comprises top cover labyrinth setting up and down (19) and lower sealing cover (24), top cover labyrinth (19) is placed on tubular construction, lower sealing cover (24) is connected with top rotary table (18), lower sealing cover (24) center is uniform arranges some scallop holes, on, lower sealing cover is provided with labyrinth ring, on, the labyrinth ring of lower sealing cover is embedded in together mutually, the outmost turns of labyrinth ring arranges oil sealing felt collar.
6. the rotary packed bed mass transfer of the reverse shearing of air-flow according to claim 5 and consersion unit, it is characterized in that described packing support is tubular stainless steel coil, circumferentially densely covered perforate, the outer rim of packing support is provided with some form drag parts, described form drag part is Metal Flake projection, profile is rectangle or triangle, and at right angle setting is in the outer rim of packing support.
7. the rotary packed bed mass transfer of the reverse shearing of air-flow according to claim 6 and consersion unit, is characterized in that air inlet pipe (1) connects main chamber (11) through collection chamber (20).
8. the rotary packed bed mass transfer of the reverse shearing of air-flow according to claim 7 and consersion unit, is characterized in that using swivel joint (5) to be connected between described hollow shaft (14) and feed tube.
9. the rotary packed bed mass transfer of the reverse shearing of a kind of air-flow according to claim 8 and consersion unit, it is characterized in that described transmission device comprises that hollow shaft (14), solid shafting (22), belt pulley (10), belt (6) and motor (9) form, negative pulley wheel is all equipped with in hollow shaft (14) and solid shafting (22) outer end, by belt (6), is connected with motor (9).
10. the rotary packed bed mass transfer of the reverse shearing of a kind of air-flow according to claim 9 and consersion unit, it is characterized in that whole revolving bed main body (3) and motor (9) are installed on equipment supporter (7), revolving bed main body (3) is fixed on support (7) center by deck, motor (9) is fixed in the T-slot (8) at the upper and lower position of support (7), and motor set bolt can slide in T-slot (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320553300.3U CN203447804U (en) | 2013-09-07 | 2013-09-07 | Mass transfer and reaction device of rotary filler bed for shearing airflow reversely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320553300.3U CN203447804U (en) | 2013-09-07 | 2013-09-07 | Mass transfer and reaction device of rotary filler bed for shearing airflow reversely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203447804U true CN203447804U (en) | 2014-02-26 |
Family
ID=50127709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320553300.3U Withdrawn - After Issue CN203447804U (en) | 2013-09-07 | 2013-09-07 | Mass transfer and reaction device of rotary filler bed for shearing airflow reversely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203447804U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103463829A (en) * | 2013-09-07 | 2013-12-25 | 中北大学 | Mass transfer and reaction equipment for reverse airflow shearing and rotating packed bed |
| CN104436737A (en) * | 2014-12-09 | 2015-03-25 | 温州创兴化工设备有限公司 | Efficient rotation rectifier |
| CN108854313A (en) * | 2018-07-10 | 2018-11-23 | 佛山市金净创环保技术有限公司 | A kind of application method of air cleaning unit and the device |
| CN108905255A (en) * | 2018-07-10 | 2018-11-30 | 佛山市金净创环保技术有限公司 | A kind of fluid circulating device |
| CN110721650A (en) * | 2019-09-25 | 2020-01-24 | 浙江华科化工设备有限公司 | Concentric corrugated ring rotating bed |
-
2013
- 2013-09-07 CN CN201320553300.3U patent/CN203447804U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103463829A (en) * | 2013-09-07 | 2013-12-25 | 中北大学 | Mass transfer and reaction equipment for reverse airflow shearing and rotating packed bed |
| CN103463829B (en) * | 2013-09-07 | 2015-11-18 | 中北大学 | The rotary packed bed mass transfer of the reverse shearing of air-flow and consersion unit |
| CN104436737A (en) * | 2014-12-09 | 2015-03-25 | 温州创兴化工设备有限公司 | Efficient rotation rectifier |
| CN108854313A (en) * | 2018-07-10 | 2018-11-23 | 佛山市金净创环保技术有限公司 | A kind of application method of air cleaning unit and the device |
| CN108905255A (en) * | 2018-07-10 | 2018-11-30 | 佛山市金净创环保技术有限公司 | A kind of fluid circulating device |
| CN110721650A (en) * | 2019-09-25 | 2020-01-24 | 浙江华科化工设备有限公司 | Concentric corrugated ring rotating bed |
| CN110721650B (en) * | 2019-09-25 | 2023-06-30 | 浙江华科化工设备有限公司 | Concentric ripple circle revolving bed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103463829B (en) | The rotary packed bed mass transfer of the reverse shearing of air-flow and consersion unit | |
| CN203447804U (en) | Mass transfer and reaction device of rotary filler bed for shearing airflow reversely | |
| CN101898047B (en) | Rotating packed bad with coil tube type rotating liquid distributor | |
| CN203389355U (en) | Multilayer reinforced gas-liquid mass transfer rotary packed bed rotor | |
| CN106075950B (en) | A kind of dual drive cross_flow rotating packed bed | |
| CN102240461A (en) | Multistage-absorption-type rotating packed bed | |
| CN102950064B (en) | Energy-saving dusting machine | |
| CN201366019Y (en) | Position changing wheel device for sanitary towel production | |
| CN102824753B (en) | Use method of super-gravity three-phase mass transferring and separating rotary bed | |
| CN201735262U (en) | Gas-liquid separator in pipe body | |
| CN204320287U (en) | A kind of rotary packed bed mass transfer of multistage cross flow and consersion unit | |
| CN102974786B (en) | Amorphous strip adsorption-type coiling auxiliary device | |
| CN103239885A (en) | Supergravity rotating packed bed device with middle feeding function and built-in liquid collection redistributor | |
| CN104941246B (en) | A kind of percussion flow hypergravity liquid-liquid extraction device | |
| CN202136827U (en) | Miniaturized gas-liquid mass transfer equipment | |
| CN201752586U (en) | Supergravity rotating bed with coil-pipe type rotating liquid distributor | |
| CN102641718A (en) | Disk-shaped centrifugate ring moving sealing device for super-gravity rotary bed | |
| CN203790609U (en) | Super-gravity separation device | |
| CN204767531U (en) | Novel baffling formula hypergravity revolving bed | |
| CN104001889A (en) | Carrier roller device in continuous casting machine | |
| CN102814055A (en) | Miniaturized gas and liquid mass transfer equipment | |
| CN203991749U (en) | A kind of amorphous band absorption type rolling structure | |
| CN202538787U (en) | Disc centrifugate ring movable sealing device for super gravity rotating bed | |
| CN104148195B (en) | Dynamic eddy flow double-stage separator | |
| CN203916925U (en) | Dynamically eddy flow double-stage separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140226 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |