CN104056832A - Solvent barrel cleaning system - Google Patents
Solvent barrel cleaning system Download PDFInfo
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- CN104056832A CN104056832A CN201410291559.4A CN201410291559A CN104056832A CN 104056832 A CN104056832 A CN 104056832A CN 201410291559 A CN201410291559 A CN 201410291559A CN 104056832 A CN104056832 A CN 104056832A
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- solvent
- liquid
- drum
- pipeline
- storage device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
- B08B9/28—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by splash, spray, or jet application, with or without soaking
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a solvent barrel cleaning system. The inner bottom surface of a solvent barrel is arranged obliquely, and a pumping pipe which can be used for pumping washing liquid and waste gas from the lowermost position of the inner bottom surface of the solvent barrel is inserted, so that the washing liquid in the solvent barrel can be drained effectively; meanwhile, a liquid inlet pipeline, a liquid outlet pipeline, an air inlet pipeline and an air outlet pipeline are designed, and the washing liquid left in the solvent barrel after pumping can be taken out of the solvent barrel by means of volatilization, so that the cleanness is improved. On the basis, the structure of a cleaning pipeline is improved, and a pipeline structure for cleaning the solvent barrel in a replacing and reflowing way is designed, so that the cleanness is further improved, meanwhile a solvent is saved, and pollution is avoided.
Description
Technical field
The present invention relates to chemical field, be specifically related to a kind of solvent drum purging system.
Background technology
The storage and transport process of electronic chemical product need to be used solvent drum.Reveal for fear of solvent, the import and export of solvent drum is generally located at the top of solvent drum.Need to extract solvent time, oil filling riser is inserted in solvent drum from the import of solvent drum, compressed gas source is connected with the import of solvent barrel, by Compressed Gas, the organic solvent in solvent drum is extracted out in will be along oil filling riser from solvent barrel, deliver to storage tank or storage tank.Even adopt the mode extracting, in solvent drum, also have unavoidably that particle falls into or the metal impurities of trace are sneaked into, be deposited on solvent barrel; And electronic chemical product requires quite high to the cleannes of solvent drum inwall; Therefore, unsnatching solvent drum after solvent could be again canned after need to having strict cleaning.
At present, solvent drum be generally by manual cleaning, the cleanliness of cleaning is difficult to reach requirement, and cleans that cost is large, easy contaminated environment.After manual cleaning, the device of some cleaning cylindrical shells is also disclosed, a kind of disclosed a kind of paint cylinder purging system of system, CN103350089A that cleans ton bucket as disclosed in patent CN 103721989A etc. in prior art.These systems or being applicable to cleaning bottom is provided with the cylindrical shell of discharge outlet, or cylindrical shell need to be stood upside down and cleans, otherwise the waste water cleaning after cylindrical shell is difficult to drain.And for large-scale solvent drum, owing to thering is large volume, weight, be difficult to stand upside down and clean, it is into and out of young and be all located at top, and therefore these purging systems are difficult to be suitable for.
Therefore be located at the large-scale solvent drum at top for import and export, be necessary to develop a kind of solvent drum purging system that also can reach high definition cleanliness factor without handstand solvent drum.
Summary of the invention
The object of the invention is to overcome the defect existing in prior art, a kind of solvent drum purging system that also can reach high definition cleanliness factor without handstand solvent drum is provided.
For this reason, the present invention is a kind of solvent drum purging system, comprise for make support that solvent drum inner bottom surface is obliquely installed or base, for the import and export at sealed solvent cylinder top into and out of lid, for the extraction tube of lowest part withdrawn fluid in solvent drum and for spray the shower nozzle of cleaning fluid in solvent drum; The feeder sleeve of shower nozzle, through access cover, is connected with feed liquor pipeline and air inlet pipeline simultaneously, and feed liquor pipeline and air inlet pipeline are communicated with respectively solvent storage device and gas storage device, are respectively equipped with liquid feed valve and intake valve on feed liquor pipeline and air inlet pipeline; Extraction tube, through outlet cap, is connected with fluid pipeline and gas exhaust piping simultaneously; Gas exhaust piping is provided with air bleeding valve and is communicated to Waste gas outlet or gas sampling or treating apparatus, on fluid pipeline, is provided with successively liquid valve and drawing liquid pump and is communicated to discard solution discharge port or waste collection or treating apparatus along fluid direction.
When use, open liquid feed valve and liquid valve, close intake valve and air bleeding valve, the solvent in solvent storage device is through feed liquor pipeline and shower nozzle rinse solvent cylinder inwall, and the washing lotion after flushing is discharged through fluid pipeline from extraction tube by the extraction of drawing liquid pump; Because the inner bottom surface of solvent drum is obliquely installed, and extraction tube can extend to the lowest part of solvent drum inner bottom surface, and therefore the liquid in solvent drum can be discharged effectively; After liquid in solvent drum is discharged, close liquid feed valve and liquid valve, open intake valve and air bleeding valve, the gas of air inlet pipeline enters solvent drum, leaves solvent drum from extraction tube from shower nozzle, residual exhaust gases in solvent drum is discharged, residual washing lotion is taken out of by volatilization simultaneously, further improve the cleaning cleanliness of solvent drum.
In order to reduce the cleaning cleanliness of evacuation time, raising solvent drum, preferred technical scheme is that described air inlet pipeline is also provided with the heater for gas in water back.Pass through heater, as heating jacket, gas on can heating air inlet pipeline, because hot gas density is lower than the density of cold air, thereby the hot gas entering in solvent drum from shower nozzle can little by little occupy solvent drum from top to bottom, thereby the waste gas in solvent drum can be discharged effectively from the extraction tube that extends to solvent drum bottom.Hot gas also plays dry out solvent cylinder, effectively gets rid of the effect of residual washing lotion in solvent drum in addition.
In order to make the extraction tube can be from the lowest part withdrawn fluid in solvent drum, preferably, described extraction tube comprises the bellows piece of the straight length on top and the bottom being connected with straight length, and it is outer field balancing weight that the bottom of bellows piece is connected with corrosion resistant plastic.Under the effect of balancing weight, bellows piece occurs to stretch and is bending, thereby naturally reaches the lowest part of the tilted-putted solvent drum of inner bottom surface, thereby improves the extraction efficiency of the interior washing lotion of solvent drum and waste gas.Certainly can be set to the extraction tube of straight tube, can be from the lowest part extracting liquid of solvent drum as long as realize extraction tube.Process evidence, adopts its extraction washing lotion of extraction tube being made up of straight length, bellows piece and balancing weight and waste gas efficiency is higher, assembling is more free, is not subject to the restriction of solvent drum size.
In order to improve drawing liquid efficiency, avoid waste gas to overflow from the junction of outlet cap and extraction tube, preferred technical scheme is that the outer wall of described outlet cap and described straight pipeline is sealed and matched, as thread seal coordinates.
The material of extraction tube can be, described corrosion resistant plastic pipe is perfluoroalkoxy resin pipe, and balancing weight skin is polytetrafluoroethylene (PTFE), and this two materials have good acidproof, corrosion resistant performance.
Best described balancing weight is the catotropic taper of cone, be fixed on the below of described bellows piece, and the axis of balancing weight is provided with the through hole communicating with the cavity of described extraction tube.Such balancing weight can further improve the solvent extraction efficiency that solvent drum inner bottom surface tilts in rear lowest part wedge angle, thereby further improves the cleanliness of cleaning.
Also can described balancing weight be sheathed on the lateral wall of described bellows piece lower end.In this case, best described corrosion resistant plastic pipe also comprises the Taper Pipe section that is fixed on described bellows piece below.
In order to improve the clean cleanliness of solvent drum, preferred technical scheme is that described shower nozzle is that lift 360 is spent rotary nozzle.
In order to improve drawing liquid efficiency, avoid waste gas to overflow from the junction of the feeder sleeve of access cover and shower nozzle, described access cover and described feeder sleeve are for being sealed and matched, as thread seal coordinates.
Discharge in time in order to make the washing lotion after shower nozzle ejection of solvent cylinder inwall, improve clean cleanliness, preferred technical scheme can be, described fluid pipeline is provided with the capacitance type liquid level detection switch for detecting liquid level in solvent drum at close described liquid suction pipe place, capacitance type liquid level detection switch electrical connection controller, controller is electrically connected described liquid feed valve and described liquid valve.
Washing can adopt deionized water washing; For this reason, described solvent storage device is the storage device of storage deionized water, and described solvent storage device is head tank.Solvent storage device is designed to head tank and can saves power consumption.
The washing of employing deionized water, the evacuation time that after venting washing, the interior residual steam of solvent drum and residual moisture need to be longer.Therefore preferred technical scheme is to adopt displacement cleaning way, carrys out cleaning solvent cylinder with the canned organic solvent of storage solvent drum that is:.For this reason, preferred described solvent storage device is the storage device of the canned organic solvent of storage solvent drum.Clean by displacement, as long as the Control of Impurities in solvent storage device in organic solvent is in certain content, even residual minim washing lotion in solvent drum, only need the waste gas in venting solvent drum, save the time of ventilation with performance or oven dry residual moisture, thereby greatly improved cleaning efficiency.
Because the canned organic solvent of solvent drum is organic chemicals, store organic chemicals with head tank and have certain risk; Therefore preferred technical scheme is that described solvent storage device is Lower tank; For solving the dynamical problem of Lower tank toward feed liquor pipeline supply solvent, preferred technical scheme is that described feed liquor pipeline is also provided with infusion pump between described liquid feed valve and described solvent storage device.
In the time adopting displacement cleaning way, if the solvent after cleaning directly discharges, easily pollute, also cause waste simultaneously.For this reason, preferably, described liquid waste treating apparatus is filter, and the outlet of filter is communicated to described solvent storage device by back liquid pipeline.Hold back the impurity in washing lotion by filter, washing lotion can be reused after filtering, avoided polluting and waste.
After washing lotion is filtered in solvent storage device is got back on liquid back pipe road when in the situation that, preferred technical scheme is, described solvent storage device is with back liquid pipeline and be respectively detachable with described input duct and be connected.When impurity content in the organic solvent in solvent storage device is when particularly metal ion content is not up to standard, can change easily solvent storage device like this.
For the impurity in energy effectively catching washing lotion, preferred technical scheme is that described filter comprises the filter membrane of three roads for the waste liquid particle that dams; Along fluid direction, the aperture of filter membrane filter opening is followed successively by 0.5 μ m, 0.2 μ m and 0.05 ~ 0.1 μ m.
For the ease of detecting cleaning performance, detect the impurity situation of described solvent storage device internal solvent, preferred technical scheme is that described input duct is also communicated with the lateral for inspection by sampling simultaneously, the outlet of lateral is sample tap, and lateral is provided with liquid taking valve.
Advantage of the present invention and beneficial effect are: the present invention is obliquely installed by the inner bottom surface that makes solvent drum, and insert the extraction tube that can extract from the lowest part of solvent drum inner bottom surface washing lotion and waste gas, and therefore the washing lotion in solvent drum can be discharged effectively; Design feed liquor, fluid pipeline and air inlet and gas exhaust piping simultaneously, made to extract in solvent drum that residual waste gas after washing lotion is discharged, residual washing lotion also can be taken solvent drum out of by volatilizing or drying, thereby improved cleaning cleanliness.This present invention has also improved detergent line structure, has designed the pipeline structure that can adopt displacement, reflux type cleaning solvent cylinder, has further improved cleaning cleanliness, has improved cleaning efficiency, has saved solvent simultaneously and has avoided pollution.
Brief description of the drawings
Fig. 1 is a kind of structural representation of solvent drum purging system of the present invention;
Fig. 2 is a kind of structural representation of extraction tube in Fig. 1;
Fig. 3 is the partial enlarged drawing at A place in Fig. 2;
Fig. 4 is the another kind of structural representation of extraction tube in Fig. 1;
Fig. 5 is the partial enlarged drawing at B place in Fig. 4;
Fig. 6 is the another kind of structural representation of solvent drum purging system of the present invention.
In figure: 1, solvent drum; 2, base; 11, outlet cap; 12, extraction tube; 13, liquid valve; 14, air bleeding valve; 17, drawing liquid pump; 18, controller; 19, liquid level detecting switch; 21, access cover; 22, shower nozzle; 23, liquid feed valve; 24, intake valve; 25, solvent storage device; 26, atmosphere storage device; 27, infusion pump; 28, heating jacket; 29, filter; 31, liquid taking valve; 121, straight length; 122, bellows piece; 123, balancing weight; 124, Taper Pipe section; 220, feeder sleeve; 1230, through hole.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
Embodiment 1
The present invention is a kind of solvent drum purging system, as shown in Figure 1, comprise base 2 for solvent drum 1 inner bottom surface is obliquely installed, for the access cover 21 of sealed solvent cylinder 1 top inlet, for the outlet cap 11 of sealed solvent cylinder 1 top exit, for the extraction tube 12 from the interior lowest part withdrawn fluid of solvent drum 1 and for the shower nozzle 22 to the interior injection cleaning fluid of solvent drum 1; The feeder sleeve 220 of shower nozzle 22 is through access cover 21, be connected with feed liquor pipeline and air inlet pipeline simultaneously, feed liquor pipeline and air inlet pipeline are communicated with respectively solvent storage device 25 and gas storage device 26, are respectively equipped with liquid feed valve 23 and intake valve 24 on feed liquor pipeline and air inlet pipeline; Extraction tube 12, through outlet cap 11, is connected with fluid pipeline and gas exhaust piping simultaneously; Gas exhaust piping is provided with air bleeding valve 14 and is communicated to Waste gas outlet; On fluid pipeline, be provided with successively liquid valve 13 and drawing liquid pump 17 and be communicated to discard solution discharge port along fluid direction.
Solvent storage device 25 is the storage device of storage deionized water, and solvent drum adopts deionized water washing.For saving power consumption, solvent storage device 25 is designed to head tank.
When use, open liquid feed valve 23 and liquid valve 13, close intake valve 24 and air bleeding valve 14, the solvent in solvent storage device 25 is through feed liquor pipeline and shower nozzle 22 rinse solvent cylinder 1 inwalls, and the washing lotion after flushing is discharged through fluid pipeline from extraction tube 12 by the extraction of drawing liquid pump 17; Because the inner bottom surface of solvent drum 1 is obliquely installed, and extraction tube 12 can extend to the lowest part of solvent drum 1 inner bottom surface, and therefore the liquid in solvent drum 1 can be discharged effectively; After liquid in solvent drum 1 is discharged, close liquid feed valve 23 and liquid valve 13, open intake valve 14 and air bleeding valve 14, the gas of air inlet pipeline enters solvent drum 1, leaves solvent drum 1 from extraction tube 12 from shower nozzle 22, interior solvent drum 1 residual exhaust gases is discharged, residual washing lotion is taken out of by volatilization simultaneously, further improve the cleaning cleanliness of solvent drum 1.
In order to improve the clean cleanliness of solvent drum 1, shower nozzle 22 is spent rotary nozzle for lift 360.
Discharge in time in order to make the washing lotion after shower nozzle 22 ejection of solvent cylinder inwalls, improve clean cleanliness, can be at fluid pipeline in the capacitance type liquid level detection switch 19 that is provided for detecting solvent drum 1 interior liquid level near liquid suction pipe 12 places, capacitance type liquid level detection switch 19 is electrically connected controller 18, and controller 18 is electrically connected liquid feed valve 23 and liquid valve 13.
With after deionized water cleaning solvent cylinder, easy residual steam and residual water in solvent drum, therefore can be provided for the heater of gas in water back on air inlet pipeline.As shown in Figure 1, heater is heating jacket 28.Preferably heating jacket 28 designs close intake valve 24 places at air inlet pipeline, to save thermal energy consumption.The benefit of the gas on heating air inlet pipeline is also, the hot gas entering in solvent drum 1 from shower nozzle 22 can little by little occupy solvent drum 1 from top to bottom, thereby the waste gas in solvent drum 1 can be discharged from extraction tube 12 effectively.
The structure of extraction tube 12 can be from the lowest part extracting liquid of solvent drum 1 as long as meet.Preferably the structure of liquid suction pipe 12 is, as shown in Figures 2 and 3, extraction tube 12 comprises the bellows piece 122 of the straight length 121 on top and the bottom being connected with straight length 121, and it is outer field balancing weight 123 that the bottom of bellows piece 122 is also connected with corrosion resistant plastic.On the material selection of extraction tube 12, can select corrosion resistant plastic pipe is perfluoroalkoxy resin pipe, and balancing weight skin is polytetrafluoroethylene (PTFE), and this two materials have good acidproof, corrosion resistant performance.Under the effect of balancing weight 123, bellows piece 122 occurs to stretch and is bending, thereby can naturally reach the lowest part of the tilted-putted solvent drum 1 of inner bottom surface, thereby improves the extraction efficiency of the interior washing lotion of solvent drum and waste gas.Through evidence, the extraction tube 12 that employing is made up of straight length 121, bellows piece 122 and balancing weight 123 extracts washing lotion and waste gas efficiency is higher, assembling is more free, is not subject to the too large restriction of solvent drum 1 size.
As extraction tube, as shown in Figures 2 and 3, balancing weight 123 can be conehead taper down, is fixed on the below of bellows piece 122, and the axis of balancing weight 123 is provided with the through hole 1230 communicating with the cavity of extraction tube 12.Such balancing weight can further improve the solvent extraction efficiency that solvent drum 1 inner bottom surface tilts in rear lowest part wedge angle, thereby further improves the cleanliness of cleaning.
As extraction tube, as shown in Figure 4 and Figure 5, balancing weight 123 can also be sheathed on the lateral wall of bellows piece 122 lower ends, meanwhile, below bellows piece 122, can also be connected with Taper Pipe section 124.
In order to improve drawing liquid efficiency, avoid waste gas from the junction of outlet cap 11 and extraction tube 12 or overflow from the junction of the feeder sleeve 220 of access cover 21 and shower nozzle 22, preferably outlet cap 11 is sealed and matched with the outer wall of liquid suction pipe 12, and access cover 21 and feeder sleeve 220 are for being sealed and matched.When liquid suction pipe 12 is provided with straight length 121, bellows piece 122, outlet cap 11 is sealed and matched with the outer wall of the straight length 121 of liquid suction pipe 12.Be sealed and matched and can adopt as thread seal cooperation.
Here base 2 can also be changed into the support that can make solvent drum 1 inner bottom surface be obliquely installed.
Except Waste gas outlet, gas exhaust piping can also be communicated to gas sampling or treating apparatus.
Except discard solution discharge port, fluid pipeline can also be communicated to waste collection or treating apparatus.
Embodiment 2
The deficiency of embodiment 1 is: adopt deionized water washing, the evacuation time that after venting washing, the interior residual steam of solvent drum 1 and residual moisture need to be longer.
The present embodiment adopts displacement cleaning way, as shown in Figure 6, that is: carrys out cleaning solvent cylinder with the canned organic solvent of storage solvent drum.In the present embodiment, solvent storage device 25 is the storage device of the canned organic solvent of storage solvent drum.Clean by displacement, as long as the Control of Impurities in the interior organic solvent of solvent storage device 25 is in certain content, even if the interior residual minim washing lotion of solvent drum 1, only needs the waste gas in venting solvent drum 1, save the time of ventilation with performance or oven dry residual moisture.
Because the canned organic solvent of solvent drum 1 is organic chemicals, store organic chemicals with head tank and have certain risk; In the present embodiment, solvent storage device 25 is Lower tank; For solving the dynamical problem of Lower tank toward feed liquor pipeline supply solvent, feed liquor pipeline is also provided with infusion pump 27 between liquid feed valve 23 and solvent storage device 25.
In the time adopting displacement cleaning way, if the solvent after cleaning directly discharges, easily pollute, also cause waste simultaneously.For this reason, in the present embodiment, fluid pipeline is communicated to liquid waste treating apparatus, and liquid waste treating apparatus is filter 29, and the outlet of filter 29 is communicated to solvent storage device 25 by back liquid pipeline.Hold back the impurity in washing lotion by filter 29, washing lotion can be reused after filtering, avoided polluting and waste.Preferably solvent storage device 25 is detachable connection with back liquid pipeline, and solvent storage device 25 is detachable connection with input duct.When impurity content in the organic solvent in solvent storage device 25 is when particularly metal ion content is not up to standard, can change easily solvent storage device 25 like this.For the impurity in energy effectively catching washing lotion, filter 29 comprises the filter membrane of three roads for the waste liquid particle that dams; Along fluid direction, the aperture of filter membrane filter opening is followed successively by 0.5 μ m, 0.2 μ m and 0.05 ~ 0.1 μ m.
In the time adopting displacement to clean and washing lotion gets back to after filtering solvent storage device 25, for the ease of detecting cleaning performance, detect the impurity situation of solvent storage device 25 internal solvents simultaneously, input duct also can be communicated with the lateral for inspection by sampling, the outlet of lateral is sample tap, and lateral is provided with liquid taking valve 31.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a solvent drum purging system, comprise for make support that solvent drum inner bottom surface is obliquely installed or base, for the import and export at sealed solvent cylinder top into and out of lid, for the extraction tube of lowest part withdrawn fluid in solvent drum and for spray the shower nozzle of cleaning fluid in solvent drum; The feeder sleeve of shower nozzle, through access cover, is connected with feed liquor pipeline and air inlet pipeline simultaneously, and feed liquor pipeline and air inlet pipeline are communicated with respectively solvent storage device and gas storage device, are respectively equipped with liquid feed valve and intake valve on feed liquor pipeline and air inlet pipeline; Extraction tube, through outlet cap, is connected with fluid pipeline and gas exhaust piping simultaneously; Gas exhaust piping is provided with air bleeding valve and is communicated to Waste gas outlet or gas sampling or treating apparatus, on fluid pipeline, is provided with successively liquid valve and drawing liquid pump and is communicated to discard solution discharge port or waste collection or treating apparatus along fluid direction.
2. solvent drum purging system according to claim 1, is characterized in that, described air inlet pipeline is also provided with the heater for gas in water back.
3. solvent drum purging system according to claim 1, is characterized in that, described extraction tube comprises the bellows piece of the straight length on top and the bottom being connected with straight length, and it is outer field balancing weight that the bottom of bellows piece is connected with corrosion resistant plastic; And the outer wall of access cover and straight pipeline is sealed and matched.
4. solvent drum purging system according to claim 1, is characterized in that, described shower nozzle is that lift 360 is spent rotary nozzle; Described access cover and described feeder sleeve are for being sealed and matched.
5. solvent drum purging system according to claim 1, it is characterized in that, described fluid pipeline is provided with the capacitance type liquid level detection switch for detecting liquid level in solvent drum at close described liquid suction pipe place, capacitance type liquid level detection switch electrical connection controller, controller is electrically connected described liquid feed valve and described liquid valve.
6. solvent drum purging system according to claim 1, is characterized in that, described solvent storage device is the storage device of storage deionized water, and described solvent storage device is head tank.
7. solvent drum purging system according to claim 1, is characterized in that, described solvent storage device is the storage device of the canned organic solvent of storage solvent drum; And described solvent storage device is Lower tank; Described feed liquor pipeline is also provided with infusion pump between described liquid feed valve and described solvent storage device.
8. solvent drum purging system according to claim 7, is characterized in that, described liquid waste treating apparatus is filter, and the outlet of filter is communicated to described solvent storage device by back liquid pipeline; And described solvent storage device is with back liquid pipeline and be respectively detachable with described input duct and be connected.
9. solvent drum purging system according to claim 8, is characterized in that, described filter comprises the filter membrane of three roads for the waste liquid particle that dams; Along fluid direction, the aperture of filter membrane filter opening is followed successively by 0.5 μ m, 0.2 μ m and 0.05 ~ 0.1 μ m.
10. solvent drum purging system according to claim 8, is characterized in that, described input duct is also communicated with the lateral for inspection by sampling, and the outlet of lateral is sample tap, and lateral is provided with liquid taking valve.
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| CN201410291559.4A CN104056832B (en) | 2014-06-26 | 2014-06-26 | Solvent barrel cleaning system |
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| CN201410291559.4A CN104056832B (en) | 2014-06-26 | 2014-06-26 | Solvent barrel cleaning system |
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| CN104056832B CN104056832B (en) | 2017-01-18 |
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| CN110577027A (en) * | 2019-08-02 | 2019-12-17 | 山东龙翼航空科技有限公司 | Spout a jar play liquid conversion head and contain spout a jar drain pipe of this conversion head |
| CN113275345A (en) * | 2020-02-20 | 2021-08-20 | 长鑫存储技术有限公司 | Automatic cleaning machine |
| CN114130625A (en) * | 2021-11-08 | 2022-03-04 | 长飞光纤光缆股份有限公司 | Switching device for optical fiber coating material and using method thereof |
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| CN114130625B (en) * | 2021-11-08 | 2023-02-28 | 长飞光纤光缆股份有限公司 | Switching device for optical fiber coating material and using method thereof |
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