CN2564965Y - Rotary conical cylinder type machine for filtering, washing, drying and powdering - Google Patents
Rotary conical cylinder type machine for filtering, washing, drying and powdering Download PDFInfo
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- CN2564965Y CN2564965Y CN 02235201 CN02235201U CN2564965Y CN 2564965 Y CN2564965 Y CN 2564965Y CN 02235201 CN02235201 CN 02235201 CN 02235201 U CN02235201 U CN 02235201U CN 2564965 Y CN2564965 Y CN 2564965Y
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- hollow shaft
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- rotary sealing
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- 238000005406 washing Methods 0.000 title claims abstract description 22
- 238000001035 drying Methods 0.000 title abstract description 12
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- 238000007789 sealing Methods 0.000 claims abstract description 23
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Abstract
The utility model relates to a rotary barrel-cone type filtering, washing, drying and pulverizing machine for filtering, washing, drying, pulverizing, surface modifying, mixing, material unloading, on-site cleaning and sterilizing. A barrel body (12) is arranged on a base, left and right both sides of the barrel body are respectively connected with a hollow shaft (9), and a chain wheel (8) is fixed on a hollow shaft. The outer ends of two hollow shafts (9) are respectively connected with a rotary sealing joint (6), an inlet tube (5) for heat transfer fluid is connected to the rotary sealing joints on the left sides of the two hollow shafts, an inlet tube (21) for technology media is connected to the rotary sealing joints on the right sides of the two hollow shafts, and the inner end of the inlet tube (21) for the technology media is fixedly connected with a built-in cantilever type feeding tube (18). An outlet tube (4) for the heat transfer fluid is connected to the rotary sealing joints on the left sides of the two hollow shafts, and an outlet tube (24) for the technology media is connected to the rotary sealing joints on the right sides of the two hollow shafts. The lower surface of the barrel body is connected with an open type filtering device (27) with a disk, the outer wall of the barrel body (12) is packed and provided with a heat exchanger (13), a speed-changing screw knife assembly (14) is arranged on the upper part of the barrel body. The utility model is suitable for refining and processing products in chemical industry and pharmacy industry.
Description
Technical field
The utility model relates to used machinery, particularly chemical industry in the material preparation process, pharmacy industry material filtering, washing, drying, efflorescence, the used machinery of mixing.
Background technology
As everyone knows, in modernization industry is produced, for the upstream solid/liquid mixture that makes through reaction, extraction, absorption, concentrates, technology such as crystallization is produced is able to effective separation, and be refined into product, must pass through the kinds of processes unit operations, be combined into a rational production line and realize.Modal process route, relate to a large amount of unit operating equipments and material transfer device, not only production site layout area occupied is big, equipment/the installation investment is high, operating personnel disperse and labour intensity is big, also there are drawbacks such as logistics link complexity, environment vulnerable to pollution, finished product recovery rate are low, the difficult control of quality, limited the development of producing.At present, domestic existing introduction external advanced as equipment such as bag-turning pattern centrifugal separator, pot type filtration/washing/drying machine, puridryer, Highefficientpulverizers, but still succinct, quick, the incorporate hard nut to crack of unresolved logistics.
Chinese patent ZL96229672.4 has introduced a kind of cone type reacting filtering drying machine, had on same machine, finish reaction, evaporation, concentrate, multiple unit operations such as crystallization, drying, have advantages such as easy to operate, that labour intensity is low, filter efficiency is high, energy consumption is low, occupation of land is few, but spiral scraper, pushing spiral structure do not possess the effective efflorescence of the filter cake of making, discharging fully, functions such as dry powder surface modification and mixing, more can not implement cleaning on the throne and sterilization.
Chinese patent ZL99225960.6 has introduced a kind of medicine vacuum filtration stirring drier, have equally and on a machine, finish vacuum filtration, washing and stir dry triple functions, especially be furnished with non-friction, non-leakage magnetic fluid seal, prevented that effectively shaft-packing leakage from sucking the external world and being with dirty foreign matter, when washing, cylindrical shell can be reversed by filter cake 180 ° structure, help improving effect, but the same existence of the blade agitators structure defective the same with last example.
Chinese patent ZL99226371.9 has introduced a kind of multi-functional dry machine, it has multiple functions such as dry materials, powder pulverizing, surface modification, mixing of materials, but the function that does not possess solid/liquid separation, washing, because of inner complicated impeller, shift fork structure, be unfavorable for that also discharging is complete, equipment cleans and sterilization equally.
Summary of the invention
Technical problem to be solved in the utility model is the upstream product that desire can be separated, in same hermetic type equipment, finish filtration, washing, drying, efflorescence, surface modification, mixing, discharging and operations such as cleaning on the throne and sterilization, and product is pollution-free in process, lossless, handling safety is reliable, cost is low, provides the tapered filtration washing of rotary tube of the present utility model dry efflorescence machine for this reason.
For addressing the above problem, the technical solution adopted in the utility model is to be provided with cylindrical shell and filter on support, and its special character is:
Its and arranged on left and right sides top of described support respectively is provided with bearing block, and the cylindrical shell and arranged on left and right sides respectively is connected with hollow shaft and is installed on described bearing block, is fixed with sprocket wheel on the hollow shaft;
Its outer end of described two hollow shafts respectively is associated with the rotary sealing joint, be associated with the hollow shaft of stretching in the left side in the heat-transfer working medium inlet tube on the rotary sealing joint in left side, be associated with the hollow shaft of stretching in the right side in the processing medium inlet tube on the rotary sealing joint on right side, processing medium inlet tube the inner is fixedly connected with built-in cantilevered charge pipe and is positioned at cylindrical shell;
The hollow shaft that is associated with heat-transfer working medium outlet and left side on the rotary sealing joint in described left side connects, and the hollow shaft that is associated with processing medium outlet and right side on the rotary sealing joint on described right side connects;
Described filter is that this filter of open-type disc filtration device can open and close to be connected with the cylindrical shell lower port, this open-type disc filtration device is made of the combination filtering layer of flat bottom cover and upper edge institute involution thereof, leading on the flat bottom cover has interface, is connected with the movable hollow shaft that leads in described right side of taking on the interface;
The cylinder body outer wall bag is provided with heat exchanger;
Be associated with the power supply swivel coupling on the hollow shaft of one side;
The cylindrical shell upper edge is connected with dress/discharging interface, and cylindrical shell top is provided with speed change circular knife sub-assembly, and it joins circular knife and is built in cylindrical shell top.
The tapered cylindrical shell of tube that cylindrical shell described in the utility model is preferably partly combined by cylinder part and conic tube, described speed change circular knife sub-assembly is located at described conic tube part.
Can on described heat-transfer working medium inlet tube and heat-transfer working medium outlet, respectively be provided with No. two transfer valves, on described processing medium inlet tube, be provided with No. five transfer valves, on the processing medium outlet, be provided with No. two transfer valves.
Can partly be provided with oscillator at the conic tube of described cylindrical shell.
Can on described support, be provided with the frequency control reductor that cooperates with chain gear transmission.
Can on described dress/discharging interface, be provided with the interface cap.
The utility model is owing to be connected with hollow shaft in the cylindrical shell both sides, be associated with the rotary sealing joint on the hollow shaft, be provided with the hollow shaft of stretching in a side in the heat-transfer working medium inlet tube, be provided with to stretch in the hollow shaft of opposite side in the processing medium inlet tube and be provided with the processing medium outlet and lead in this side hollow shaft, processing medium inlet tube the inner is connected with built-in cantilevered charge pipe and is positioned at cylindrical shell, cylindrical shell is provided with speed change circular knife sub-assembly and is connected with the open-type filter, the cylindrical shell outsourcing is provided with heat exchanger, so the utility model can be with filtration, washing, dry, efflorescence, surface modification, mix, dress/discharging, clean multinomial chemical engineering unit operation, under the air-tight state that material needn't be shifted, finish, reach easy to operate, labour intensity is low, material loss is few, energy consumption is low, the work efficiency height, the purpose that production cost is low.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model middle conical tube body portion A-A cutaway view.
Be labeled as among the figure: 1 frame, 2 frequency control reductors, 3 No. two transfer valves, 4 heat-transfer working medium outlets, 5 heat-transfer working medium inlet tubes, 6 rotary sealing joints, 7 bearing blocks, 8 sprocket wheels, 9 hollow shafts, 10 power supply swivel couplings, 11 axle beds, 12 cylindrical shells, 13 heat exchangers, 14 speed change circular knife sub-assemblies, 15 dress/discharging interfaces, 16 butterfly valves, 17 interface caps, 18 built-in cantilevered charge pipes, 19 oscillators, 20 movable adapters, 21 processing medium inlet tubes, 22 No. five transfer valves, 23 No. two transfer valves, 24 processing medium outlets, 25 ready-packaged joints, 26 interfaces, 27 open-type disc filtration devices, 28 flat bottom covers, 29 combination filtering layers, 30 flange opening encapsulation devices.
The specific embodiment
The dry efflorescence machine of the tapered filtration washing of rotary tube, support 1 is provided with cylindrical shell 12, and this cylindrical shell is the tapered cylindrical shell of tube that cylinder part and conic tube partly combine, and cylindrical shell 12 outer wall bags are provided with heat exchanger 13; Support 1 and arranged on left and right sides top respectively is provided with bearing block 7, cylindrical shell 12 and arranged on left and right sides are respectively led to through axle bed 11 has hollow shaft 9 to be installed on described bearing block 7, the hollow shaft in left side and described heat exchanger connect, be fixed with sprocket wheel 8 on this hollow shaft, support is provided with the frequency control reductor 2 that cooperates with sprocket wheel 8 transmissions; Described two hollow shafts 9 its outer ends respectively are associated with rotary sealing joint 6, and cylindrical shell can be rotated and the rotary sealing joint does not rotate with hollow shaft; Be linked with the hollow shaft 9 of stretching in the left side in the heat-transfer working medium inlet tube 5 on the rotary sealing joint 6 in left side, be associated with the hollow shaft of stretching in the right side in the processing medium inlet tube 21 on the rotary sealing joint 6 on right side, processing medium inlet tube 21 the inners are fixedly connected with built-in cantilevered charge pipe 18 and are positioned at cylindrical shell 12; The hollow shaft 9 that is linked with heat-transfer working medium outlet 4 and left side on the rotary sealing joint 6 in described left side connects, and the hollow shaft that is linked with processing medium outlet 24 and right side on the rotary sealing joint 6 on described right side connects; Respectively be provided with No. two transfer valves 3 on heat-transfer working medium inlet tube 5 and the heat-transfer working medium outlet 4, processing medium inlet tube 21 is provided with No. five transfer valves 22, and processing medium outlet 24 is provided with No. two transfer valves 23; The lower port of described cylinder part is connected with open-type disc filtration device 27, this filter is made of the combination filtering layer 29 of flat bottom cover 28 and upper edge institute involution thereof, leading on the flat bottom cover 28 has interface 26, is connected with movable 20 hollow shafts that lead in described right side of taking over through ready-packaged joint 25 on the interface 26; Be associated with power supply swivel coupling 10 on the hollow shaft 9 in left side; The conic tube part upper edge of cylindrical shell 12 is connected with dress/discharging interface 15 and which is provided with interface cap 17, and it joins circular knife and is built in cylindrical shell 12 tops partly to be provided with speed change circular knife sub-assembly 14 in described conic tube, also is provided with oscillator 19 in described conic tube part; It is speed change circular knife sub-assembly 14 and oscillator 19 power supplies that power supply swivel coupling 10 connects power supply.
Cylindrical shell of the present utility model 12 adopts the high-quality low carbon stainless steels to make, and inwall is through mirror finish and nothing " dead angle ", helps sizing mixing, drying, heat transfer, discharging and cleaning.Cylindrical shell 12 outer wall bags are established the heat exchanger 13 with heat-insulating material shell, can effectively increase the mechanical strength of cylindrical shell, are adapted to press filtration and vacuum drying.Cylindrical shell is made a taper, helps the material movement diversification, improves the uniformity that stirs and is easy to discharging.Form cavitys in the flat bottom cover 28 in combination filtering layer 29 belows, through activity take over 20, right side hollow shaft and working medium media outlet pipe 24 can be to cylindrical shell in material carry out suction filtration.Gu combination filtering layer 29 is parting liquid/material when filtering, Gu separate vapour/material when drying, the filtering layer material can be selected for use by the different requirements of product.The frequency modulation variable speed electric motors, particularly is installed to drive speed change circular knife sub-assembly 14 in the conic tube part proper site of cylindrical shell.Speed change circular knife sub-assembly 14 is used for the material efflorescence and becomes fine powder or surface modification to make granular product.Heat exchanger 13 can adopt various ways, and as the board-like chuck of labyrinth type, spiral semicircle coil pipe etc., heat exchanger 13 transfer working medium in heat can be supporting by product technological requirement or service condition, as adopting negative pressure saturated vapor, temperature adjustment conduction oil, constant temperature cold/hot water etc.Butterfly valve 16, interface cap 17 are equipped with in loading and unloading material interface 15 places, are suitable for clean production.Movable adapter 20, ready-packaged joint 25 etc. adopt the fast-assembling clamping hoop type to connect, and are convenient to cleaning-sterilizing.Be furnished with visor, sample tap, detection mouth on the cylindrical shell 12, be beneficial to and observe inner operating mode and supporting corresponding on-line detector device, guarantee safe operation, be beneficial to device authentication.The utility model can be controlled automatically by the PLC controller, and environmental gas concentration and relevant demonstration, warning device can supportingly be arranged, these accessory devices, and ordinary appliances electronic technology personnel can realize by technological requirement this area.
On heat-transfer working medium inlet tube 5, can import heating agent working medium R or refrigerant medium L through No. two transfer valves 3, and output heating agent working medium R ' or refrigerant medium L ' implementation circulation on heat-transfer working medium outlet 4, on processing medium inlet tube 6, can import upstream feed liquid LY or cleaning fluid XY through No. five transfer valves 22, solvent/coupling agent RJ, purified water/pure steam CHS, Compressed Gas YQ, material carries out suction filtration in No. two transfer valves 23 can be connected cylindrical shell with vacuum system ZK on processing medium outlet 24, or input purifies Compressed Gas YQ (nitrogen or air) blowback, cleaning combination filtering layer 29 etc.
Application process of the present utility model below is described:
The cylindrical shell 12 that will clean earlier is positioned the conic tube position that makes progress, No. two transfer valves 23 are connected with vacuum ZK system, make in the cylindrical shell 12 and be negative pressure, then No. five transfer valves 22 are connected with upstream product LY, feed liquid is injected on the combination filtering layer 29 of open-type disc filtration device 27 through built-in cantilevered charge pipe 18 from processing medium inlet tube 21, carries out suction filtration.When flat bottom cover 28 inner chamber vacuums during near the 750mmHg post, open frequency control reductor 2, driving hollow shafts 9 and cylindrical shell 12 Rotate 180s through sprocket wheel 8 ° becomes conic tube to upper/lower positions, filter cake on the combination filtering layer hangs to conic tube, open speed change circular knife sub-assembly 14 simultaneously, mix slurry or pulp washing.Washer solvent RJ is injected by built-in cantilever charge pipe 18 through No. five transfer valves 22, to setting-up time, closes speed change circular knife sub-assembly 14, cylindrical shell 12 resets to conic tube upwards, carry out suction filtration, to flat bottom cover inner chamber vacuum during, filter, washing finishes near the 750mmHg post.After this, import heating agent working medium R to heat exchanger 13 through No. two transfer valves 3 and heat-transfer working medium inlet tube 5, No. two transfer valves 23 are connected vacuum system ZK simultaneously, start frequency control reductor 2 and circular knife sub-assembly 14, make filter cake at cylindrical shell 12 inner edge breaking and Dustings, conduct heat in the limit, mass transfer, and residual liquid moist steam is taken away, reaches vacuum drying purpose.Add thermal purification pressurized gas system YQ for effectively improving the permeability of filter medium, No. two transfer valves 23 periodically can being switched to, combination filtering layer 29 is carried out the arteries and veins blowback,, improve rate of drying to reduce the filtering layer resistance; When the material water capacity reaches requirement, No. two transfer valves 3 can cut out, or tangential refrigerant medium L, make the interior material of cylindrical shell slowly be cooled to environment temperature, close No. five transfer valves 22, No. two transfer valves 23 this moment, makes material enter the efflorescence state.By on the technology to the requirement of powder, regulate cylindrical shell 12 and circular knife sub-assembly 14 rotating speeds, control efflorescence quality; , then coupling agent or other slurries RJ can be injected in the cylindrical shell 12 by No. five transfer valves 22 powder surface modification as technological requirement, carry out modification while stirring and handle; Add the material of specific components as technological requirement final products domestic demand, it is downward cylindrical shell 12 can be positioned conic tube, opens interface cap 17, clamps the bung that additive is housed with opening clip soon, cylindrical shell 12 Rotate 180s ° to conic tube makes progress, additive falls into cylindrical shell, opened butterfly valve 16, rotation or swing cylindrical shell 12 at random, carry out batch mixing, mix and finish, it is downward to make cylindrical shell be positioned to conic tube, with butterfly valve 16 control blankings.For preventing that powder from presenting " bridge formation " phenomenon at discharging opening, the powder shake is clean with oscillator 19; At last Compressed Gas YQ is fed cylindrical shell through No. five transfer valves 22, purge, collect the product that is attached in the cylindrical shell.The product that strictness is had " lot number " requirement, can after going out only, powder close butterfly valve 16 earlier, inject cylindrical shell 12 with the CHS that purifies waste water in right amount through No. five transfer valves 22, charge pipe 18 again, reset frequency control reductor 2 and circular knife sub-assembly 14, utilize impact and the turbulence of water in the cylindrical shell of revolution or swing, all sites in the cylindrical shell is carried out cleaning on the throne; Clean and finish, it is downward that cylindrical shell is positioned to conic tube, opens butterfly valve 16, will clean waste liquid and discharge, and repeats several times, reaches clean purpose.To product that " aseptic " require being arranged after above-mentioned cleaning, feed pure steam CHS or thimerosal XY from processing medium inlet tube 21, whole cylindrical shell is carried out sterilization on the throne.
The utility model can be with multinomial chemical engineering unit operations such as filtration, washing, drying, efflorescence, surface modification, mixing, dress/discharging, cleanings, under the air-tight state that material needn't be shifted, finish, be specially adapted to refining processing poisonous, harmful, high-thermosensitive material.
The utility model can be controlled multinomial unit operations by the PLC controller, has characteristics such as easy to operate, that labour intensity is low, material loss is few, energy consumption is low, floor space is little, production cost is low.
Claims (6)
1, the dry efflorescence machine of the tapered filtration washing of rotary tube, support (1) is provided with cylindrical shell (12) and filter, it is characterized in that:
Its and arranged on left and right sides top of described support (1) respectively is provided with bearing block (7), and cylindrical shell (12) and arranged on left and right sides respectively is connected with hollow shaft (9) and is installed on described bearing block (7), is fixed with sprocket wheel (8) on the hollow shaft;
Its outer end of described two hollow shafts (9) respectively is associated with rotary sealing joint (6), be associated with the hollow shaft (9) of stretching in the left side in the heat-transfer working medium inlet tube (5) on the rotary sealing joint (6) in left side, be associated with the hollow shaft of stretching in the right side in the processing medium inlet tube (21) on the rotary sealing joint (6) on right side, processing medium inlet tube (21) the inner is fixedly connected with built-in cantilevered charge pipe (18) and is positioned at cylindrical shell (12);
The hollow shaft (9) that is linked with heat-transfer working medium outlet (4) and left side on the rotary sealing joint (6) in described left side connects, and the hollow shaft that is linked with processing medium outlet (24) and right side on the rotary sealing joint (6) on described right side connects;
Described filter is that this filter of open-type disc filtration device (27) can open and close to be connected with cylindrical shell (12) lower port, open-type disc filtration device (27) is made of the combination filtering layer (29) of flat bottom cover (28) and upper edge institute involution thereof, leading on the flat bottom cover (28) has interface (26), is connected with movable take over (20) on the interface (26) and leads to hollow shaft in described right side;
Cylindrical shell (12) outer wall bag is provided with heat exchanger (13);
Be associated with power supply swivel coupling (10) on the hollow shaft of one side (9);
Cylindrical shell (12) upper edge is connected with dress/discharging interface (15), and cylindrical shell (12) top is provided with speed change circular knife sub-assembly (14), and it joins circular knife and is built in cylindrical shell (12) top.
2, the dry efflorescence machine of the tapered filtration washing of rotary tube as claimed in claim 1, it is characterized in that described cylindrical shell (12) is the tapered cylindrical shell of tube that cylinder part and conic tube partly combine, described speed change circular knife sub-assembly (14) is located at described conic tube part.
3, the dry efflorescence machine of the tapered filtration washing of rotary tube as claimed in claim 1 or 2, it is characterized in that respectively being provided with No. two transfer valves (3) on heat-transfer working medium inlet tube (5) and the heat-transfer working medium outlet (4), processing medium inlet tube (21) is provided with No. five transfer valves (22), and processing medium outlet (24) is provided with No. two transfer valves (23).
4, the dry efflorescence machine of the tapered filtration washing of rotary tube as claimed in claim 3 is characterized in that the conic tube of cylindrical shell (12) partly is provided with oscillator (19).
5, the dry efflorescence machine of the tapered filtration washing of rotary tube as claimed in claim 4 is characterized in that support (1) is provided with the frequency control reductor (2) that cooperates with sprocket wheel (8) transmission.
6, the dry efflorescence machine of the tapered filtration washing of rotary tube as claimed in claim 5 is characterized in that described dress/discharging interface (15) is provided with interface cap (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02235201 CN2564965Y (en) | 2002-05-16 | 2002-05-16 | Rotary conical cylinder type machine for filtering, washing, drying and powdering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02235201 CN2564965Y (en) | 2002-05-16 | 2002-05-16 | Rotary conical cylinder type machine for filtering, washing, drying and powdering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2564965Y true CN2564965Y (en) | 2003-08-06 |
Family
ID=33709781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02235201 Expired - Lifetime CN2564965Y (en) | 2002-05-16 | 2002-05-16 | Rotary conical cylinder type machine for filtering, washing, drying and powdering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2564965Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988788A (en) * | 2010-11-19 | 2011-03-23 | 太仓正信干燥设备科技有限公司 | Single-stacker dryer with single-helical stirrer |
| CN101995154A (en) * | 2010-11-19 | 2011-03-30 | 太仓正信干燥设备科技有限公司 | Bar type catcher and single-cone dryer with same |
| CN103075871A (en) * | 2013-02-01 | 2013-05-01 | 山东润泽制药有限公司 | Sanitary multifunctional drying machine |
| CN104069661A (en) * | 2014-05-16 | 2014-10-01 | 昆山协多利洁净科技有限公司 | Rotatable filter |
| CN105498328A (en) * | 2014-09-25 | 2016-04-20 | 中国石油化工股份有限公司 | Washing tower |
-
2002
- 2002-05-16 CN CN 02235201 patent/CN2564965Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988788A (en) * | 2010-11-19 | 2011-03-23 | 太仓正信干燥设备科技有限公司 | Single-stacker dryer with single-helical stirrer |
| CN101995154A (en) * | 2010-11-19 | 2011-03-30 | 太仓正信干燥设备科技有限公司 | Bar type catcher and single-cone dryer with same |
| CN101988788B (en) * | 2010-11-19 | 2012-07-25 | 太仓正信干燥设备科技有限公司 | Single-cone dryer with single-helical stirrer |
| CN101995154B (en) * | 2010-11-19 | 2012-09-05 | 太仓正信干燥设备科技有限公司 | Bar type catcher and single-cone dryer with same |
| CN103075871A (en) * | 2013-02-01 | 2013-05-01 | 山东润泽制药有限公司 | Sanitary multifunctional drying machine |
| CN104069661A (en) * | 2014-05-16 | 2014-10-01 | 昆山协多利洁净科技有限公司 | Rotatable filter |
| CN105498328A (en) * | 2014-09-25 | 2016-04-20 | 中国石油化工股份有限公司 | Washing tower |
| CN105498328B (en) * | 2014-09-25 | 2017-07-14 | 中国石油化工股份有限公司 | Scrubbing tower |
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