CN207463761U - A kind of efficient organic evaporating crucible cleaning system - Google Patents
A kind of efficient organic evaporating crucible cleaning system Download PDFInfo
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- CN207463761U CN207463761U CN201721495352.4U CN201721495352U CN207463761U CN 207463761 U CN207463761 U CN 207463761U CN 201721495352 U CN201721495352 U CN 201721495352U CN 207463761 U CN207463761 U CN 207463761U
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Abstract
The utility model discloses a kind of efficient organic evaporating crucible cleaning systems, including cleaning machine frame and the cleaning device and control device that are arranged in cleaning machine frame, the cleaning liquid bath being connect with cleaning machine frame and cleaning storehouse are additionally provided in system, the upper end of cleaning storehouse is equipped with inlet tube, outlet tube and the rotary shaft hole being connected with its inner cavity, lower ending opening；Cleaning device includes rotating mechanism and brush head, and rotating mechanism runs through the rotary shaft hole, and is detachably connected with the brush head in cleaning storehouse；Admission chamber is equipped in the cleaning liquid bath and goes out sap cavity, inlet tube and outlet tube by a delivery pump and go out sap cavity and admission chamber is correspondings connects respectively, control device respectively with delivery pump and rotating mechanism electric connection；The crucible one end that need to be cleaned is by the opening push-in cleaning storehouse of cleaning storehouse, inlet tube and brush head stretch into and rotary scrubbing performed in crucible.Brush head in the cleaning device of the utility model is detachably connected with rotating mechanism, can replace corresponding head shapes according to the shape of crucible, realizes independent, the controllable customization cleaning of variety classes crucible.
Description
Technical field
The utility model is related to OLED corollary equipment technical fields, and in particular to a kind of efficient organic evaporating crucible cleaning system
System.
Background technology
The research origin of organic electroluminescent (OLED) technology is in the 1960s, doctor Deng Qingyun existed with 1987
Kodak presents the practical prospect of OLED device, and OLED technology constantly opens up exploration, is widely used in showing and shine
It is bright to wait practical field, form complete volume production system.
Wherein, the core that vacuum evaporation equipment is applied as OLED technology perfectly changes the device system of OLED material
Standby technique, greatly improved the precision and usage time of OLED device preparation, improves the efficiency and yields of volume production, be current
The most widely used OLED tools of production.
And match carrier of the set crucible as OLED material in evaporated device in vacuum evaporation equipment, in evaporation source,
The effect of load material is not only carry, while also contributes to the heating and evaporation of material, therefore, vacuum evaporation equipment is to crucible
Cleanliness factor has harsh requirement.
In OLED evaporated devices, the crucible for carrying organic evaporating materials needs periodic cleaning and replacement, and crucible is clear
Cleanliness factor after washing has a great impact to the reuse of crucible；Now common cleaning be crucible is immersed in it is organic
It is cleaned by ultrasonic in solvent, then manually with brush grooming, then with pure water rinsing, is finally dried.Whole process not only needs
A large amount of manpower is consumed, and the clean level cleaned can not also ensure, while the crucible after cleaning needs to hold using other
Device can be transferred in drying box, increase the possibility of pollution.
Traditional dry pot cleaning way includes solvent soaking, ultrasonic cleaning, solvent removal and clean dried.But by
In crucible cleaning requirement for type, material of crucible of material in the shape of crucible, crucible etc. using different types of clear
Mode is washed, therefore, there is no a product that can be suitable for the crucible cleaning machine of polymorphic type and more cleaning types at present, so as to provide
Efficiently, quick and automation cleaning, improves Cleanliness quality, reduces the use of manpower.
Utility model content
For of the prior art above insufficient, the utility model provides a kind of multiple types cleaning way that is applicable to
Efficient organic evaporating crucible cleaning system can realize independent, the controllable customization cleaning of variety classes crucible, reduce solvent
Usage amount and the pollution to environment.
In order to achieve the above objectives, the utility model adopts the following technical solution：
A kind of efficient organic evaporating crucible cleaning system, including cleaning machine frame and the cleaning being arranged in the cleaning machine frame
Device and control device are additionally provided with the cleaning liquid bath being connect with the cleaning machine frame and cleaning storehouse, the cleaning in the system
The upper end in storehouse is equipped with inlet tube, outlet tube and the rotary shaft hole being connected with its inner cavity, lower ending opening；The cleaning device packet
Include rotating mechanism and brush head, the rotating mechanism runs through the rotary shaft hole, and with the brush head in the cleaning storehouse
It is detachably connected；Admission chamber is equipped in the cleaning liquid bath and goes out sap cavity, the inlet tube and outlet tube pass through a conveying respectively
Pump with it is described go out sap cavity and admission chamber is corresponding connects, the control device electrically connects respectively with the delivery pump and rotating mechanism
It connects；The crucible one end that need to be cleaned is pushed by the opening of the cleaning storehouse in the cleaning storehouse, and the inlet tube and brush head stretch into earthenware
Rotary scrubbing is performed in crucible.
The cleaning machine frame is equipped with multiple cleaning devices and cleaning storehouse, each on the inlet tube of the cleaning storehouse
A liquid inlet control valve is respectively equipped with, each liquid inlet control valve connects respectively with feed liquor supervisor, the outlet tube of each cleaning storehouse
On be respectively equipped with a liquid control valve, each liquid control valve goes out liquid supervisor with one and connect respectively, and liquid master is responsible for and is gone out to the feed liquor
Pipe is connect respectively with the delivery pump.
The liquid inlet control valve and liquid control valve are solenoid valve, are electrically connected respectively with the control device, institute
State the keying of liquid inlet control valve and liquid control valve in each cleaning storehouse of control device independent control.
Further, each cleaning storehouse is equipped with a heating unit, including hygrosensor and winding heater wire
Circle, the hygrosensor are arranged on the liquid outlet position of the cleaning storehouse, and the winding heating coil is set to the cleaning
The lateral surface in storehouse, the control device is electrically connected respectively with the heating unit in each cleaning storehouse, each for independent control
The heating of the cleaning storehouse.
The rotating mechanism includes rotary shaft, is arranged on the driving motor of described rotary shaft one end and is placed on the cleaning
Supersonic generator between storehouse and driving motor in the rotary shaft, the driving motor electrically connect with the control device
It connects.
For the cleaning storehouse in being vertically arranged, the opening of lower end is equipped with the sealing structure being threadedly coupled with crucible.
The brush body part and brushhead portion that the brush head includes, the brush body part and the lower end of the rotary shaft are detachable
Connection, the brushhead portion are high intensity Fypro, are fixed on the lower end of the brush body part.
The admission chamber in the cleaning liquid bath and it is described go out sap cavity between be equipped with filter, it is clear in the admission chamber
Washing lotion goes out described in entering after filter filtering in sap cavity.
Multiple cleaning liquid baths are equipped in the system, the cleaning liquid bath is a pair of by pipeline and the cleaning storehouse one
It should connect.
Technical solutions of the utility model have the following advantages that：
A. efficient organic evaporating crucible cleaning system provided by the utility model includes cleaning storehouse, cleaning liquid bath, rotation
The part such as cleaning device and control device is formed, and the brush head in cleaning device is detachably connected with rotating mechanism, can be according to crucible
Shape replace corresponding head shapes, realize independent, the controllable customization cleaning of variety classes crucible.
B. the utility model in cleaning machine frame by setting multiple cleaning storehouses and cleaning device, while is set in cleaning storehouse
Solenoid valve is put, for controlling feed liquor and going out liquid, liquid inlet control valve, liquid control valve and the driving motor in each cleaning storehouse can pass through
Control device individually controls, and cleaning device uses ultrasonic cleaning, is generated during cleaning and is cleaned by ultrasonic liquid, rotated simultaneously
Brush head ultrasonic vibration can be transmitted to crucible bottom, the heavily contaminated region of crucible bottom is cleaned, in ultrasonic wave and
Under the collective effect of brush head scrub, the cleaning to crucible can be completed in a relatively short time.
C. the utility model also winds heating unit on the lateral surface of cleaning storehouse, and control device is independent in each cleaning storehouse
Heating unit controlled, play the role of to cleaning storehouse protect gently dried.Heating unit is in the mistake of cleaning solution wash cycles
The temperature that cleaning storehouse is only used in journey is kept, and in cleaning solution after circulation terminates, only unlatching liquid control valve, which vacuumizes, reaches negative pressure,
100~130 DEG C of high-temperature heating is carried out again, makes the moisture in cleaning storehouse and remaining solvent evaporating completely.
D. the utility model sets admission chamber in liquid bath is cleaned and goes out sap cavity, filter is set therebetween, after cleaning
Cleaning solution can be recycled, being filtered rear cleaning solution can be reused, reduce solvent usage amount, carry significantly
The high utilization rate of cleaning solution, can be directed to the crucible of different type and different cleaning requirements, increase multiple cleaning liquid baths to carry
For different types of cleaning solution, realize that orientation provides high quality cleaning under the premise of no cross contamination.
Description of the drawings
In order to illustrate more clearly of specific embodiment of the present invention, will make below to required in specific embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is by the crucible cleaning system planar structure schematic diagram provided of the utility model；
Fig. 2 is cleaning storehouse structure diagram shown in Fig. 1；
Fig. 3 is cleaning solution slot structure schematic diagram shown in Fig. 1；
Fig. 4 is cleaning device structure diagram in Fig. 1；
Fig. 5 is the loop structure schematic diagram formed between cleaning device, cleaning storehouse and cleaning liquid bath.
Reference sign：
1- cleaning machine frames
2- cleaning devices
21- rotating mechanisms
211- rotary shafts, 212- driving motors, 213- supersonic generators；
22- brush heads
221- brush body parts, 222- brushhead portions；
3- control devices
4- cleans liquid bath
41- admission chambers, 42- go out sap cavity, 43- filters；
5- cleaning storehouses；6- inlet tubes；7- outlet tubes；8- rotary shaft holes；9- delivery pumps；10- crucibles；20- liquid inlet control valves；
30- liquid control valves；40- feed liquors are responsible for；50- goes out liquid supervisor；
60- heating units
601- winds heating coil
70- sealing rings；80- screw threads；90- draw rings.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
As shown in Figure 1, the utility model provides a kind of efficient organic evaporating crucible cleaning system, including cleaning machine frame 1
With the cleaning device 2 and control device 3 being arranged in cleaning machine frame 1, the cleaning solution being connect with cleaning machine frame 1 is additionally provided in system
Slot 4 and cleaning storehouse 5, the upper end of cleaning storehouse 5 are equipped with the inlet tube 6, outlet tube 7 and the rotary shaft hole 8 that are connected with its inner cavity, under
End opening；Cleaning device 2 include rotating mechanism 21 and brush head 22, rotating mechanism 21 run through the rotary shaft hole 8, and with positioned at clear
The brush head 22 brought down stocks in 5 is detachably connected；Admission chamber 41 is equipped in cleaning liquid bath 4 and goes out sap cavity 42, inlet tube 6 and outlet tube 7
Respectively by a delivery pump 9 with go out sap cavity 42 and admission chamber 41 it is corresponding connection, control device 3 respectively with delivery pump 9 and whirler
Structure 21 is electrically connected；10 one end of crucible that need to be cleaned is by the opening push-in cleaning storehouse 5 of cleaning storehouse 5, inlet tube 6 and brush head 22 are stretched
Enter in crucible 10 and perform rotary scrubbing.The sap cavity 42 that goes out cleaned in liquid bath can be squeezed into earthenware by cleaning solution by delivery pump and inlet tube
In crucible, by pulling crucible, brush head along the inner wall of crucible scrub when spraying cleaning solution, realizes automation scrub；Cleaning
The cleaning solution in crucible can be substantially increased by being discharged in the admission chamber 41 of cleaning liquid bath outside outlet tube, delivery pump to earthenware afterwards
The cleaning efficiency of crucible, while brush head can also be replaced according to the shape of crucible, realize the cleaning to multiple types crucible.
As depicted in figs. 1 and 2, multiple cleaning devices 2 and cleaning storehouse 5 are equipped in cleaning machine frame 1, each cleaning storehouse 5
A liquid inlet control valve 20 is respectively equipped on inlet tube 6, each liquid inlet control valve 20 connects respectively with feed liquor supervisor 40, each cleaning
A liquid control valve 30 is respectively equipped on the outlet tube 7 in storehouse 5, each liquid control valve 30 goes out liquid supervisor 50 with one and connects respectively, into
Liquid is responsible for 40 and goes out liquid supervisor 50 and connect respectively with delivery pump 9.Multiple cleaning storehouses 5 by control device can independently to crucible into
Row cleaning is suitable for the crucible cleaning of different type or shape.
Certainly, the utility model can also establish multiple cleaning liquid baths, and multiple cleaning liquid baths and multiple cleaning storehouses one are a pair of
Should, the crucible cleaning to different cleaning solution requirements can be met simultaneously in this way, realize the classification pipe of crucible cleaning process well
Control, expansible degree is high, realizes the cleaning program that customizable is used for different crucibles.
It is common for cylindrical and rectangle since crucible shape can be divided into cylinder, rectangle, cone etc.；Material is
The organic solvent-resistants such as stainless steel, copper, aluminium corrode metal, preferably stainless steel, and bulkhead thickness is in 0.5~5mm, preferably 2mm.
Liquid inlet control valve 20 and liquid control valve 30 in the utility model are preferably solenoid valve, can also be machinery certainly
Hand-operated valve is electrically connected respectively with control device 3, liquid inlet control valve 20 and is gone out in each cleaning storehouse 5 of 3 independent control of control device
The keying of hydraulic control valve 30.
In order to, into trip temperature holding and drying, a heating is equipped in each cleaning storehouse 5 to the crucible after cleaning up
Device 60, including hygrosensor and winding heating coil 601, hygrosensor is arranged on the liquid outlet position of cleaning storehouse 5,
Winding heating coil 601 is set to the lateral surface of cleaning storehouse 5, and the side wall ring of cleaning storehouse utilizes between electric heating cover, with side wall
Ceramics insulate.
Control device 3 is electrically connected respectively with the heating unit 60 in each cleaning storehouse 5, for each cleaning storehouse 5 of independent control
Heating.Heating unit is enclosed in the outside of cleaning storehouse 5, plays the role of protecting gently dried to cleaning storehouse 5.Using coil type plus
Heat, hygrosensor are mounted at liquid outlet, and 10~150 DEG C of heating temperature can independently heat each cleaning storehouse 5.
The temperature that heating unit 60 is only used for cleaning storehouse 5 during cleaning solution wash cycles is kept, and is followed in cleaning solution
After ring, only unlatching liquid control valve, which vacuumizes, reaches negative pressure, then carry out 100~130 DEG C of high-temperature heating, makes in cleaning storehouse
Moisture and remaining solvent evaporating completely.
Rotating mechanism 21 therein is as shown in figure 4, including rotary shaft 211, be arranged on the driving motor of 211 one end of rotary shaft
212 and the supersonic generator 213 that is placed between cleaning storehouse 5 and driving motor 212 in rotary shaft 211, driving motor 212 with
Control device 3 is electrically connected.Rotary ultrasonic system is that ultrasonic wave is transferred in cleaning storehouse by ultrasonator by rotating mechanism,
It is generated during cleaning and is cleaned by ultrasonic liquid, while ultrasonic vibration can be also transmitted to crucible bottom by the brush head rotated, it is right
It is cleaned in the heavily contaminated region of crucible bottom.
Driving motor and supersonic generator arrangement downwards successively along longitudinal direction, the part into cleaning storehouse 5 is that section is D types
Stainless steel metal bar, for connecting plastics brush head, convenient for the replacement of brush head 22.Brush head 22 is made of two parts, brush body part
221 be polymerizable material, polyester, makrolon, polyethylene, polypropylene, polytetrafluoroethylene (PTFE), polyamide etc., preferably polytetrafluoroethyl-ne
Alkene and polyamide, brushhead portion 222 are high intensity Fypro, and the shape of brush head is different according to the bottom shape of cleaning crucible
It is replaced.
Such as Fig. 2, preferably by cleaning storehouse 5 in being vertically arranged, the opening of lower end is equipped with and 10 spiral shell of crucible the utility model
The sealing structure of line connection.It is placed by the way of crucible opening upwards, drop-down drawer is formed by the draw ring 90 below crucible
Formula picks and places, and is closed in a manner that sealing ring and screw thread 70 are locked at drawer closure, and the material of sealing ring is rubber material, second third
Rubber, silicon rubber, nitrile chloride rubber, nitrile rubber, fluorine silicone rubber, fluorubber etc., preferably fluorubber and fluorine silicone rubber.
In order to be recycled to the cleaning solution after using, admission chamber 41 in liquid bath 4 is cleaned and go out sap cavity 42 it
Between be equipped with filter 43, the cleaning solution in admission chamber 41 enters in sap cavity 42 after the filtering of filter 43.
The container that liquid bath is stored and filtered for cleaning solution is cleaned, filter is the plate-type filtering of size suitable with groove body section
Device, for removing the residue that cannot be dissolved in the material in cleaning solution；Admission chamber in cleaning liquid bath is connected with delivery pump, is used for
The liquids and gases in cleaning storehouse and pipeline are extracted, go out the bottom that sap cavity is then placed in cleaning liquid bath by pipeline, by another
A delivery pump extracts outward.In the case where two delivery pumps work at the same time, the cleaning solution of place cleaning liquid bath can be in pipeline
Middle cycle.
As shown in figure 5, cleaning solution is provided to the conveying of each cleaning storehouse and the effect of recovery and rinsing liquid, feed liquor master by delivery pump
Road is made with going out liquid supervisor using stainless steel steel pipe, cleans admission chamber one group of feed liquor supervisor corresponding with sap cavity is gone out in liquid bath
With go out liquid supervisor, feed liquor, go out liquid supervisor be attached with each cleaning storehouse by branch, be equipped with and can independently control on branch road
Make the solenoid valve of switch.Feed liquor is responsible for and is gone out liquid supervisor and connect by water pump with cleaning liquid bath.Special, in the drying process
The liquid inlet control valve of corresponding cleaning storehouse is closed, and only opens liquid control valve, is arranged the aqueous vapor evaporated by an independent pipeline
Enter in waste liquid tank.
Control device in the utility model is responsible for editing and controlling cleaning process, monitors index and ginseng in cleaning process
Number, the unlatching of unlatching, supersonic generator comprising valve, pump run, warm in each cleaning storehouse cleaning solution flow, cleaning storehouse
It spends, liquid level etc. in the rotating speed and rinse bath of cleaning brush.
Obviously, the above embodiments are merely examples for clarifying the description, and is not intended to limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation thus extended out or
Among changing still in the scope of protection of the utility model.
Claims (9)
1. a kind of efficient organic evaporating crucible cleaning system including cleaning machine frame (1) and is arranged in the cleaning machine frame (1)
Cleaning device (2) and control device (3), which is characterized in that be additionally provided in the system connect with the cleaning machine frame (1) it is clear
Washing lotion slot (4) and cleaning storehouse (5), the upper end of the cleaning storehouse (5) are equipped with the inlet tube (6), the outlet tube that are connected with its inner cavity
(7) and rotary shaft hole (8), lower ending opening；The cleaning device (2) includes rotating mechanism (21) and brush head (22), the rotation
Rotation mechanism (21) detachably connects through the rotary shaft hole (8), and with the brush head (22) in the cleaning storehouse (5)
It connects；Admission chamber (41) is equipped in the cleaning liquid bath (4) and goes out sap cavity (42), the inlet tube (6) and outlet tube (7) lead to respectively
Cross a delivery pump (9) with it is described go out sap cavity (42) and admission chamber (41) it is corresponding connection, the control device (3) respectively with it is described
Delivery pump (9) and rotating mechanism (21) are electrically connected；Crucible (10) one end that need to be cleaned is pushed by the opening of the cleaning storehouse (5)
In the cleaning storehouse (5), the inlet tube (6) and brush head (22) stretch into and rotary scrubbing are performed in crucible (10).
2. efficient organic evaporating crucible cleaning system according to claim 1, which is characterized in that the cleaning machine frame (1)
Multiple cleaning devices (2) and cleaning storehouse (5) are equipped with, is respectively equipped on the inlet tube (6) of each cleaning storehouse (5)
One liquid inlet control valve (20), each liquid inlet control valve (20) connect respectively with feed liquor supervisor (40), each cleaning storehouse (5)
A liquid control valve (30) is respectively equipped on outlet tube (7), each liquid control valve (30) goes out liquid supervisor (50) with one and connects respectively,
The feed liquor is responsible for (40) and goes out liquid supervisor (50) and connect respectively with the delivery pump (9).
3. efficient organic evaporating crucible cleaning system according to claim 2, which is characterized in that the liquid inlet control valve
(20) and liquid control valve (30) is solenoid valve, is electrically connected respectively with the control device (3), the control device
(3) on each cleaning storehouse (5) of independent control liquid inlet control valve (20) and liquid control valve (30) keying.
4. efficient organic evaporating crucible cleaning system according to claim 2, which is characterized in that each cleaning storehouse
(5) heating unit (60) is equipped with, including hygrosensor and winding heating coil (601), the hygrosensor is set
It puts in the liquid outlet position of the cleaning storehouse (5), the winding heating coil (601) is set to the outside of the cleaning storehouse (5)
Face, the control device (3) is electrically connected respectively with the heating unit (60) on each cleaning storehouse (5), for independent control
The heating of each cleaning storehouse (5).
5. according to any efficient organic evaporating crucible cleaning systems of claim 1-4, which is characterized in that the whirler
Structure (21) including rotary shaft (211), be arranged on the driving motor (212) of the rotary shaft (211) one end and be placed on described clear
The supersonic generator (213) brought down stocks (5) between driving motor (212) on the rotary shaft (211), the driving motor
(212) it is electrically connected with the control device (3).
6. efficient organic evaporating crucible cleaning system according to claim 5, which is characterized in that the cleaning storehouse (5) is in
It is vertically arranged, the opening of lower end is equipped with the sealing structure being threadedly coupled with crucible (10).
7. efficient organic evaporating crucible cleaning system according to claim 6, which is characterized in that the brush head (22) includes
Brush body part (221) and brushhead portion (222), the brush body part (221) and the lower end of the rotary shaft (211) it is detachable
Connection, the brushhead portion (222) are high intensity Fypro, are fixed on the lower end of the brush body part (221).
8. efficient organic evaporating crucible cleaning system according to claim 1, which is characterized in that the cleaning liquid bath (4)
In the admission chamber (41) and it is described go out sap cavity (42) between be equipped with filter (43), the cleaning solution in the admission chamber (41)
Go out in sap cavity (42) described in entering after the filter (43) filtering.
9. efficient organic evaporating crucible cleaning system according to claim 1, which is characterized in that be equipped in the system more
A cleaning liquid bath, the cleaning liquid bath are connected one to one by pipeline and the cleaning storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721495352.4U CN207463761U (en) | 2017-11-10 | 2017-11-10 | A kind of efficient organic evaporating crucible cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721495352.4U CN207463761U (en) | 2017-11-10 | 2017-11-10 | A kind of efficient organic evaporating crucible cleaning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207463761U true CN207463761U (en) | 2018-06-08 |
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ID=62264007
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721495352.4U Active CN207463761U (en) | 2017-11-10 | 2017-11-10 | A kind of efficient organic evaporating crucible cleaning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193854A (en) * | 2022-08-12 | 2022-10-18 | 江山市检验检测研究院 | Experimental glass psammitolite crucible cleaning equipment of dry powder extinguishing agent |
-
2017
- 2017-11-10 CN CN201721495352.4U patent/CN207463761U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193854A (en) * | 2022-08-12 | 2022-10-18 | 江山市检验检测研究院 | Experimental glass psammitolite crucible cleaning equipment of dry powder extinguishing agent |
| CN115193854B (en) * | 2022-08-12 | 2024-02-23 | 江山市检验检测研究院 | Glass sand core crucible cleaning equipment for dry powder extinguishing agent test |
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