CN108100675A - Ice chest pearlife takes off sand device and method - Google Patents
Ice chest pearlife takes off sand device and method Download PDFInfo
- Publication number
- CN108100675A CN108100675A CN201711344881.9A CN201711344881A CN108100675A CN 108100675 A CN108100675 A CN 108100675A CN 201711344881 A CN201711344881 A CN 201711344881A CN 108100675 A CN108100675 A CN 108100675A
- Authority
- CN
- China
- Prior art keywords
- sand
- pearlife
- ice chest
- takes
- surge tank
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/24—Gas suction systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
- B65G53/54—Flexible pipes or tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/185—Preventing escape of dust by means of non-sealed systems
- B65G69/186—Preventing escape of dust by means of non-sealed systems with aspiration means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The invention discloses a kind of ice chest pearlifes to take off sand device and method.Ice chest pearlife, which takes off sand device, includes ice chest and the pearlife in the ice chest, and surge tank offers sand inlet and air inlet on the surge tank, and the air inlet is higher than the sand inlet；Suction tube, the suction tube include pump orifice and sand export, and the sand export is connected with the sand inlet, and the pump orifice is arranged in the pearlife in ice chest；Aspirator, the aspirator is connected with the air inlet to be made to generate negative pressure in the surge tank, and the pearlife is entered by the suction tube in the surge tank under suction function.Ice chest pearlife takes off sand method for taking off sand.Ice chest pearlife provided by the invention takes off sand device and method, reduces labor intensity, shortens and takes off the sand time, avoids pearlife and flies upward, and improves working environment quality, improves the security for taking off sand.
Description
Technical field
The present invention relates to deep cooling heat preservation technology fields more particularly to a kind of ice chest pearlife to take off sand device and method.
Background technology
Ice chest be it is a kind of efficiently, the cryogenic heat exchange equipment of cold insulation, during cryogenic separation pass through frequently with.Pearlife
Because it has the characteristics that capacity is small, thermal conductivity factor is low, chemical stability is good, non-ignitable, nontoxic, tasteless, sound absorption properties are good, extensive use
In ice chest heat preservation.
In the prior art, when ice chest failure, the method that generally use is manually removed claws pearlife from ice chest.People
Work is taken off sand and is had the following disadvantages：First, pearlife has very strong mobility, easily buries staff, staff takes off
There are life dangers during sand；Second, the pearlife of the interior filling of ice chest is more, and the personnel labor intensity taken off needed for sand is big；The
Three, when manually taking off sand, pearlife flies upward and swims in ambient air, and operating environment is poor, and the respiratory health of operating personnel can not
Ensure；4th, the time manually taken off needed for sand is longer, and the liquid oxygen or nitrogen when taking off sand for a long time in ice chest, which have gasification suddenly, leads
The problem of causing explosion, causes equipment breakdown, casualties.
Therefore, it is necessary to solve above-mentioned technical problem.
The content of the invention
The present invention provides a kind of ice chest pearlife and takes off sand device and method, to solve problems of the prior art, drop
Low labor intensity, shortening take off the sand time, pearlife are avoided to fly upward, and improve working environment quality, improve the security for taking off sand.
The present invention provides a kind of ice chest pearlifes to take off sand device, the pearly-lustre including ice chest and in the ice chest
Sand further includes：Surge tank, sand inlet and air inlet are offered on the surge tank, and the air inlet is higher than the sand inlet；It takes out
Suction pipe, the suction tube include pump orifice and sand export, and the sand export is connected with the sand inlet, and the pump orifice is worn
In pearlife in ice chest；Aspirator, the aspirator is connected with the air inlet to be made to generate negative pressure in the surge tank,
The pearlife is entered by the suction tube in the surge tank under suction function.
Optionally, the ice chest pearlife takes off sand device and further includes drill bit, and suction sand hole, the suction are offered on the drill bit
The outlet of sand hole is connected with the pump orifice.
Optionally, the shape of the drill bit is taper, and the outlet for inhaling sand hole is positioned at the bottom surface of the drill bit, the suction
The entrance of sand hole is located at the side of the drill bit.
Optionally, the mouth of falling sand is offered in the bottom wall of the surge tank.
Optionally, the ice chest pearlife takes off sand device and further includes down sandpipe and connect sand device, and the mouth of falling sand connects with described
Sand device is connected by the sandpipe.
Optionally, it is provided with gate valve on the sandpipe.
Optionally, the quantity of the suction tube is multiple that multiple sand inlets are offered on the side wall of the surge tank,
Multiple pump orifices are respectively positioned in the pearlife, and multiple sand exports connect correspondingly with multiple sand inlets
It connects.
Optionally, the suction tube is hose.
Based on same inventive concept, the present invention also provides a kind of ice chest pearlifes to take off sand method, by above-described
Ice chest pearlife takes off sand device and carries out taking off sand, including：The blanket gas of ice chest is switched into air；Pump orifice on suction tube is put
It is placed in pearlife；Opening aspirator makes to generate negative pressure in surge tank, so that the pearlife in ice chest is entered by suction tube
In surge tank.
Optionally, further include and be passed through air into the ice chest, the atmospheric pressure value in the ice chest is made to be more than the surge tank
Interior atmospheric pressure value.
Ice chest pearlife provided by the invention takes off sand device and method, by the swabbing action of aspirator, in surge tank
Negative pressure is generated, the pearlife in ice chest is driven to be directly entered the inside of surge tank from suction tube, realizes and quickly takes off sand, compared with
It is of the prior art manually to take off sand, it avoids pearlife and flies upward and float in air, improve working environment quality, shorten
The sand time is taken off, reduces labor intensity, improves security.
Description of the drawings
Preferred embodiment in the present invention will be described in detail by attached drawing below, it will help understand the purpose of the present invention and excellent
Point, wherein:
Fig. 1 is the structure diagram that the ice chest pearlife that the preferred embodiment of the present invention provides takes off sand device.
Fig. 2 is the flow chart that the ice chest pearlife that the preferred embodiment of the present invention provides takes off sand method.
Specific embodiment
It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc.
Orientation term is defined compared with each attached construction shown in figure, and word " interior " and " outer " refer respectively to direction or remote
They are opposite concepts for direction from particular elements geometric center, and it is therefore possible to can be according to its residing different position, difference
Use state and correspondingly changed.So also these or other orientation term should not be construed to restricted use
Language.
Fig. 1 is the structure diagram that the ice chest pearlife that the preferred embodiment of the present invention provides takes off sand device, as shown in Figure 1,
The present invention provides a kind of ice chest pearlifes to take off sand device, pearlife, surge tank 1, pumping including ice chest, in the ice chest
Suction pipe 2 and aspirator 3.
It refer to Fig. 1, surge tank 1 offers sand inlet and air inlet 11 on the surge tank 1, and the air inlet 11 is high
In the sand inlet；Suction tube 2, the suction tube 2 include pump orifice 21 and sand export 22, the sand export 22 with it is described into sand
Mouth is connected, and the pump orifice 21 is arranged in the pearlife in ice chest (in the layer of sand where pearlife)；The aspirator 3 with
The air inlet 11, which is connected, to be made to generate negative pressure in the surge tank 1, and the pearlife is straight by suction tube 2 under suction function
The inside into surge tank 1 is tapped into, pearlife is avoided and flies upward and swim in air, improve working environment quality, shorten and take off
The time required to sand, compared to manually sand is taken off, labor intensity is reduced, improves security.Wherein aspirator 3 can be exhaust fan
Either air-introduced machine for aspirating air, generates subnormal ambient in surge tank 1 and suction tube 2.
Ice chest pearlife provided in an embodiment of the present invention takes off sand device, by the swabbing action of aspirator 3, in surge tank 1
Interior generation negative pressure drives the pearlife in ice chest to be directly entered the inside of surge tank 1 from suction tube 2, realizes and quickly takes off sand, phase
Sand manually is taken off for of the prior art, pearlife is avoided and flies upward and swim in air, improve working environment quality, is shortened
The sand time is taken off, labor intensity is reduced, improves security.
Optionally, the ice chest pearlife takes off sand device and further includes drill bit 4, and suction sand hole is offered on the drill bit 4, described
The entrance for inhaling sand hole is located at the surface of the drill bit 4, and the outlet for inhaling sand hole is connected with the pump orifice 21.Drill bit 4
Weight is larger, and drill bit 4 can utilize the inside of own wt insertion pearlife, and outlet of the pump orifice 21 with inhaling sand hole is connected,
It ensure that normal pumping sand.
It is preferred that the shape of the drill bit 4 is tapered, the outlet for inhaling sand hole is positioned at the bottom surface of the drill bit 4.It is tapered
Drill bit 4 can further improve drill bit 4 be inserted into pearlife in depth, improve take out sand efficiency.Optionally, sand hole is inhaled
Entrance could be provided as multiple, and multiple entrances for inhaling sand holes are arranged on the conical surface of drill bit 4 and work together, and sand effect is taken out to improve
Rate.
Optionally, the mouth of falling sand 12 is offered in the bottom wall of the surge tank 1.It is pumped to from suction tube 2 in surge tank 1
Pearlife can by the mouth of falling sand 12 directly under the effect of gravity discharge surge tank 1 in, avoid pearlife heap in surge tank 1
Product, it is convenient and efficient.
Further, the ice chest pearlife takes off sand device and further includes down sandpipe 5 and connect sand device 7, the mouth of falling sand 12 and
The sand device 7 that connects is connected by the sandpipe 5.By falling the drainage of sandpipe 5, the pearlife inside surge tank 1 is directly arranged
To connecing in sand device 7, be conducive to centralized collection pearlife.
Optionally, it is provided with gate valve 6 on the sandpipe 5.The aperture of gate valve 6 is adjustable, by adjusting gate valve 6
Aperture can adjust the quantity of the negative pressure value and pearlife in surge tank 1.3 preliminary work of aspirator, gate valve 6 are in what is closed
State, so as to generate the environment of negative pressure in surge tank 1；After the pearlife of the bottom of surge tank 1 accumulation covers the mouth of falling sand 12,
Gate valve 6 is opened, discharges pearlife in time, gate valve 6 is closed when being covered in the negligible amounts of pearlife of the mouth of falling sand 12, is kept away
Exempt from air from sandpipe 5 to enter in surge tank 1, to maintain the subnormal ambient inside surge tank 1.
It is preferred that the quantity of the suction tube 2 is multiple, offered on the side wall of the surge tank 1 multiple described into sand
Mouthful, multiple pump orifices 21 are respectively positioned in the pearlife, and multiple sand exports 22 and multiple sand inlets one are a pair of
It should ground connection.Multiple suction tubes 2 can parallel operation simultaneously, take off the efficiency of sand to improve.It is preferred that multiple suction tubes 2 along
The short transverse spread configuration of the ice chest, ice chest are generally up to four, 50 meters and successively set platform, be all provided with for every layer on ice chest
It puts and takes off Sha Kou, surge tank 1 and aspirator 3 can be provided on the corresponding platform of every layer of ice chest, every layer has suction tube 2 to extend
Pearlife is aspirated in into ice chest, pearlife greatly improved takes off sand efficiency.
Optionally, the suction tube 2 is hose, and hose has the advantages of flexibility is good, good-extensibility, with pearlife
The propulsion of sand process is taken off, the upper level of pearlife reduces, and hose can continue into pearlife under the affecting of drill bit 4
Inside improves the convenient degree for taking off sand.Further, hose can be the translucent plastic tube for having some strength, be convenient for
The suction conditions of pearlife in suction tube 2 are observed, hose can be connected with surge tank 1 by screw thread or quick coupling, with
Improve efficiency.
Fig. 2 Fig. 2 is the flow chart that the ice chest pearlife that the preferred embodiment of the present invention provides takes off sand method.
As shown in Fig. 2, the present invention also provides a kind of ice chest pearlifes to take off sand method, pass through above-described ice chest pearly-lustre
Sand takes off sand device and carries out taking off sand, including：The blanket gas of ice chest is switched into air；Pump orifice 21 on suction tube 2 is positioned over
In pearlife；Opening aspirator 3 makes bad student's negative pressure in surge tank 1, delays so that the pearlife in ice chest is entered by suction tube 2
It rushes in tank 1.By the above method, inside of the pearlife in ice chest from suction tube 2 into surge tank 1 is driven, is realized quick
Sand is taken off, manually sand is taken off compared with of the prior art, pearlife is avoided and flies upward floating in air, improve working environment matter
Amount, shortens and takes off the sand time, reduce people and taking off risk present in sand, avoid when taking off sand because there may be liquid in ice chest
Oxygen or nitrogen gasify phenomenon suddenly or pearlife makes moist hardened and casualties, property loss accident occurs.Reduce labor intensity,
Improve security.
Further, further include and be passed through air into the ice chest, the atmospheric pressure value in the ice chest is made to be more than the buffering
Atmospheric pressure value in tank 1, the atmospheric pressure value in ice chest is higher, the inside for the suction tube 2 that Pipe deformation atmospheric pressure value can be driven relatively low,
Improve the efficiency of the suction of suction tube 2.
Ice chest pearlife provided in an embodiment of the present invention takes off sand device and method, by the swabbing action of aspirator 3, slow
It rushes and negative pressure is generated in tank 1, the pearlife in ice chest is driven to be directly entered the inside of surge tank 1 from suction tube 2, realizes and quickly takes off
Sand manually takes off sand compared with of the prior art, avoids pearlife and fly upward and float in air, improve working environment matter
Amount, shortens and takes off the sand time, reduce labor intensity, improve security.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent substitution to which part technical characteristic；
And these modifications or replacement, the essence of appropriate technical solution is not made to depart from the scope of various embodiments of the present invention technical solution.
Claims (10)
1. a kind of ice chest pearlife takes off sand device, the pearlife including ice chest and in the ice chest, which is characterized in that
It further includes：
Surge tank, sand inlet and air inlet are offered on the surge tank, and the air inlet is higher than the sand inlet；
Suction tube, the suction tube include pump orifice and sand export, and the sand export is connected with the sand inlet, the suction
Mouth is arranged in the pearlife in ice chest；
Aspirator, the aspirator is connected with the air inlet to be made to generate negative pressure in the surge tank, and the pearlife is negative
Pressure effect is lower to be entered by the suction tube in the surge tank.
2. ice chest pearlife according to claim 1 takes off sand device, which is characterized in that the ice chest pearlife takes off sand device
Drill bit is further included, suction sand hole is offered on the drill bit, the outlet for inhaling sand hole is connected with the pump orifice.
3. ice chest pearlife according to claim 2 takes off sand device, which is characterized in that the shape of the drill bit is taper,
Positioned at the bottom surface of the drill bit, the entrance for inhaling sand hole is located at the side of the drill bit for the outlet for inhaling sand hole.
4. ice chest pearlife according to claim 1 takes off sand device, which is characterized in that in the bottom wall of the surge tank
Offer the mouth of falling sand.
5. ice chest pearlife according to claim 4 takes off sand device, which is characterized in that the ice chest pearlife takes off sand device
It further includes down sandpipe and connects sand device, the mouth of falling sand is connected with the sand device that connects by the sandpipe.
6. ice chest pearlife according to claim 5 takes off sand device, which is characterized in that is provided with plate on the sandpipe
Valve.
7. the ice chest pearlife according to claim 1-6 any one takes off sand device, which is characterized in that the suction tube
Quantity is multiple, multiple sand inlets is offered on the side wall of the surge tank, multiple pump orifices are respectively positioned on the pearl
In light sand, multiple sand exports are connected correspondingly with multiple sand inlets.
8. the ice chest pearlife according to claim 1-6 any one takes off sand device, which is characterized in that the suction tube is
Hose.
9. a kind of ice chest pearlife takes off sand method, which is characterized in that passes through the ice chest pearly-lustre described in claim 1-8 any one
Sand takes off sand device and carries out taking off sand, including：
The blanket gas of ice chest is switched into air；
Pump orifice on suction tube is positioned in pearlife；
Opening aspirator makes to generate negative pressure in surge tank, so that the pearlife in ice chest is entered by suction tube in surge tank.
10. ice chest pearlife according to claim 9 takes off sand method, which is characterized in that further includes and leads into the ice chest
Enter air, the atmospheric pressure value in the ice chest is made to be more than the atmospheric pressure value in the surge tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711344881.9A CN108100675A (en) | 2017-12-15 | 2017-12-15 | Ice chest pearlife takes off sand device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711344881.9A CN108100675A (en) | 2017-12-15 | 2017-12-15 | Ice chest pearlife takes off sand device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108100675A true CN108100675A (en) | 2018-06-01 |
Family
ID=62217155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711344881.9A Pending CN108100675A (en) | 2017-12-15 | 2017-12-15 | Ice chest pearlife takes off sand device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108100675A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026018A (en) * | 2019-04-08 | 2019-07-19 | 黄莹 | A kind of air separation pearlife suction unit, monitoring system and repair method |
| CN110553153A (en) * | 2019-09-26 | 2019-12-10 | 武汉钢铁集团鄂城钢铁有限责任公司 | Method for treating leakage of liquid nitrogen, liquid argon or liquid air in cold box by local sand raking |
| CN115504114A (en) * | 2022-10-29 | 2022-12-23 | 中石化中原石油工程设计有限公司 | Sand pulling device and method for suspended ceiling normal-pressure storage tank |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962125A (en) * | 2010-11-04 | 2011-02-02 | 南京顺风气力输送系统有限公司 | Positive and negative pressure integrated storehouse pump |
| CN201935524U (en) * | 2010-03-24 | 2011-08-17 | 河北钢铁股份有限公司邯郸分公司 | Perlite scraping device of improved large air separation plant |
| CN202744011U (en) * | 2012-08-02 | 2013-02-20 | 广州雅顺金属表面处理机械有限公司 | Vacuum sand suction machine |
| CN204223827U (en) * | 2014-11-04 | 2015-03-25 | 罗斯（无锡）设备有限公司 | Dump tank vacuum intaking device |
| JP2015229531A (en) * | 2014-06-03 | 2015-12-21 | Ｉｈｉ運搬機械株式会社 | Pneumatic unloader |
| CN205634189U (en) * | 2016-04-28 | 2016-10-12 | 池州灵芝化建材料科技有限公司 | Powder negative pressure automatic feeding device |
-
2017
- 2017-12-15 CN CN201711344881.9A patent/CN108100675A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201935524U (en) * | 2010-03-24 | 2011-08-17 | 河北钢铁股份有限公司邯郸分公司 | Perlite scraping device of improved large air separation plant |
| CN101962125A (en) * | 2010-11-04 | 2011-02-02 | 南京顺风气力输送系统有限公司 | Positive and negative pressure integrated storehouse pump |
| CN202744011U (en) * | 2012-08-02 | 2013-02-20 | 广州雅顺金属表面处理机械有限公司 | Vacuum sand suction machine |
| JP2015229531A (en) * | 2014-06-03 | 2015-12-21 | Ｉｈｉ運搬機械株式会社 | Pneumatic unloader |
| CN204223827U (en) * | 2014-11-04 | 2015-03-25 | 罗斯（无锡）设备有限公司 | Dump tank vacuum intaking device |
| CN205634189U (en) * | 2016-04-28 | 2016-10-12 | 池州灵芝化建材料科技有限公司 | Powder negative pressure automatic feeding device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026018A (en) * | 2019-04-08 | 2019-07-19 | 黄莹 | A kind of air separation pearlife suction unit, monitoring system and repair method |
| CN110553153A (en) * | 2019-09-26 | 2019-12-10 | 武汉钢铁集团鄂城钢铁有限责任公司 | Method for treating leakage of liquid nitrogen, liquid argon or liquid air in cold box by local sand raking |
| CN110553153B (en) * | 2019-09-26 | 2020-09-29 | 宝武集团鄂城钢铁有限公司 | Method for treating leakage of liquid nitrogen, liquid argon or liquid air in cold box by local sand raking |
| CN115504114A (en) * | 2022-10-29 | 2022-12-23 | 中石化中原石油工程设计有限公司 | Sand pulling device and method for suspended ceiling normal-pressure storage tank |
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Application publication date: 20180601 |
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