CN219399944U - Cleaning and circulating system of fly ash mixing mill - Google Patents
Cleaning and circulating system of fly ash mixing mill Download PDFInfo
- Publication number
- CN219399944U CN219399944U CN202320661131.9U CN202320661131U CN219399944U CN 219399944 U CN219399944 U CN 219399944U CN 202320661131 U CN202320661131 U CN 202320661131U CN 219399944 U CN219399944 U CN 219399944U
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- Prior art keywords
- treatment pond
- fly ash
- mixer
- pipe
- treatment
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- 239000010881 fly ash Substances 0.000 title claims abstract description 27
- 238000004140 cleaning Methods 0.000 title claims description 18
- 238000002156 mixing Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 14
- 238000010992 reflux Methods 0.000 claims description 25
- 238000003860 storage Methods 0.000 claims description 12
- 238000007790 scraping Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 239000010865 sewage Substances 0.000 claims 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 241000220317 Rosa Species 0.000 description 26
- 239000002351 wastewater Substances 0.000 description 15
- 239000013522 chelant Substances 0.000 description 12
- 230000009920 chelation Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000002956 ash Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 235000013547 stew Nutrition 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000002738 chelating agent Substances 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The utility model relates to a fly ash mixer washs circulation system, including locating the support body on the earth's surface, setting up in the mixer body of support body, being located the water receiving bucket of the discharging pipe below of mixer body and setting up in the waste water treatment pond of earth's surface below, the mixer body is provided with the feed liquor pipe that feeds through in the inner chamber, the waste water treatment pond is provided with the division board that separates the inner chamber into first treatment pond and second treatment pond, and the overflow mouth that feeds through between first treatment pond and second treatment pond has been seted up to the division board, and the earth's surface is provided with the fluid-discharge line that feeds through in first treatment pond, and the water receiving bucket is provided with the connecting pipe that feeds through in the fluid-discharge channel, is provided with the water circulation mechanism that pumps the liquid in the second treatment pond to the mixer body between second treatment pond and the mixer body. The application has the effect of reducing the waste of water resources.
Description
Technical Field
The application relates to the technical field of fly ash solidification, in particular to a cleaning and circulating system of a fly ash mixer.
Background
With the rapid development of economy, the living standard of people is rapidly improved, and the urban solid waste production in China is rapidly increased. In the process of treating solid waste, there are mainly two modes of landfill treatment and incineration treatment. Because the landfill treatment process is subjected to the shape and sound of various environmental elements, the concentrated incineration method gradually becomes a main mode of urban household garbage treatment in China, a large amount of fly ash is generated in the incineration treatment process of the solid waste, the incineration fly ash contains heavy metals such as lead, cadmium, mercury and the like with higher leaching concentration, and the harmful heavy metal substances can reenter the environment without effective treatment, pollute the underground water source and harm human beings. Therefore, the incineration fly ash must be stabilized and solidified before final disposal, and usually the incineration fly ash is solidified by adding a chelating agent using a fly ash kneader.
With respect to the related art in the above, there are the following drawbacks: after the fly ash mixer is used, a large amount of chelating attachments are formed on the inner wall, cleaning is needed after the use, and water after the use is cleaned, which is usually directly discharged, so that a large amount of water resources are wasted, and further improvement is needed.
Disclosure of Invention
In order to reduce the waste of water resources, the application provides a cleaning and circulating system of a fly ash mixing mill.
The application provides a fly ash mixer washs circulation system adopts following technical scheme:
the utility model provides a fly ash mixer washs circulation system, includes the support body of locating on the earth's surface, sets up in the mixer body of support body, is located the water receiving bucket of the discharging pipe below of mixer body and sets up in the waste water treatment pond of earth's surface below, and the mixer body is provided with the feed liquor pipe that communicates in the inner chamber, the waste water treatment pond is provided with the division board that separates the inner chamber into first treatment pond and second treatment pond, and the overflow mouth that communicates between first treatment pond and second treatment pond has been seted up to the division board, and the earth's surface is provided with the fluid-discharge line that communicates in first treatment pond, and the water receiving bucket is provided with the connecting pipe that communicates in the fluid-discharge channel, is provided with the water circulation mechanism that pumps the liquid in the second treatment pond to the mixer body between second treatment pond and the mixer body.
Through adopting above-mentioned technical scheme, wash the mixer body through the inlet tube, wash the produced waste water mixture of mixer body and flow into first processing tank through water receiving bucket, connecting pipe and flowing back passageway in proper order and carry out sedimentation treatment, chelate subsides to the bottom of the pool, and waste water then flows into the second processing tank through the overflow mouth and stews and deposit and store, and at last pour into the mixer body with waste water through hydrologic cycle mechanism for the washing of flying ash chelation or mixer body can effectual water economy resource.
Preferably, the water circulation mechanism comprises a reflux pump and a reflux circulation pipe, one end of the reflux circulation pipe is communicated with the inner cavity of the mixing mill body, the other end of the reflux circulation pipe is connected with the reflux pump, and the reflux pump is arranged in the second treatment tank so as to pump liquid in the second treatment tank to the reflux circulation pipe.
By adopting the technical scheme, the reflux pump provides conveying pressure, and the water in the second treatment tank is pumped to the reflux circulating pipe and flows into the mixer body.
Preferably, the wastewater treatment device also comprises a protective fence which is arranged on the ground surface and is surrounded on the periphery of the wastewater treatment tank.
By adopting the technical scheme, the guard rails are arranged around the wastewater treatment tank, so that the possibility that workers carelessly fall into the wastewater treatment tank is reduced, and the working safety is improved.
Preferably, the first treatment tank is provided with a filter box for solid-liquid separation treatment, and the filter box is provided with an opening for abutting against a liquid discharge pipeline.
Through adopting above-mentioned technical scheme, wash the produced waste water mixture of mixer body and flow into the rose box through water receiving bucket, connecting pipe and flowing back passageway in proper order, waste water flows into in the first treatment pond through the sieve mesh of rose box, and chelate then is stopped to remain in the rose box, carries out sedimentation, and waste water further flows into the second treatment pond through the overflow mouth and stews the sediment and store, obtains comparatively clean waste water at the second treatment pond.
Preferably, the filter box is connected to the first treatment tank in a sliding manner along the vertical direction, and the support frame body is provided with a lifting device for driving the filter box to lift and slide.
Through adopting above-mentioned technical scheme, when needs clear up the chelate in the rose box, promote the rose box through elevating gear for the rose box breaks away from first processing pool, and the staff of being convenient for clear up the chelate in the rose box or change the rose box.
Preferably, the lifting device comprises a winch arranged on the support frame body, a lifting rope with one end fixedly wound on the winch and a hook fixedly connected with the other end of the lifting rope, and the filter box is provided with a connecting rope hung on the hook.
Through adopting above-mentioned technical scheme, realize the rolling or unreeling of lifting rope through the hoist engine rotation to realize the lift slip of rose box, realize automatic lift, effectively reduce staff's intensity of labour.
Preferably, the limiting frame for the filter box to slide and pass through is fixedly connected to the inner side wall of the protective guard.
Through adopting above-mentioned technical scheme, be provided with spacing frame and supply the rose box to slip to wear to establish, after the rose box sinks in first filtering ponds, spacing frame inner peripheral wall butt in the periphery of rose box, effectively spacing the rose box, reduce the possibility that the rose box takes place the displacement because of rivers impact force.
Preferably, the inside wall fixedly connected with butt in the scraping strip of rose box lateral wall of spacing frame.
Through adopting above-mentioned technical scheme, when the rose box goes up and down to slide, scrape the strip all the time butt in the lateral wall of rose box to strike off the clearance to the filth that adheres to on the rose box lateral wall.
Preferably, the mixer further comprises a transfer table arranged on the ground surface and located below the mixer body, the water receiving bucket is arranged on the transfer table, the connecting pipe is a hose, and the transfer table is further provided with a water receiving bucket.
Through adopting above-mentioned technical scheme, under the initial state, connect the storage bucket to be located under the discharging pipe of mixer body, the chelate after the mixer body solidification chelation falls into through the discharging pipe and connects in the storage bucket, and after the ejection of compact was accomplished, washs the mixer body before, removes the transfer table for connect the bucket to be located under the discharging pipe of mixer body and connect water operation, realize automatic switching, need not the manual work and carry to connect the bucket/connect the storage bucket.
In summary, the utility model has the following beneficial effects:
1. flushing the mixer body through a water inlet pipe, enabling a wastewater mixture generated by cleaning the mixer body to flow into a first treatment tank through a water receiving barrel, a connecting pipe and a liquid discharge channel in sequence for precipitation treatment, enabling chelate to sink to the bottom of the tank, enabling wastewater to flow into a second treatment tank through an overflow port for standing precipitation and storage, and finally enabling the wastewater to be injected into the mixer body through a water circulation mechanism for cleaning the fly ash chelation or the mixer body, so that water resources can be effectively saved;
2. under the initial state, connect the storage bucket to be located the discharging pipe of mixer body under, the chelate after the mixer body solidification chelate falls into and connects the storage bucket through the discharging pipe in, after the ejection of compact is accomplished, washs the mixer body before, rotatory transfer table for connect the storage bucket to be located the discharging pipe of mixer body under and connect the water operation, realize automatic conversion, need not the manual work and connect the storage bucket to carry, reduce working strength.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a fly ash mixer cleaning circulation system;
FIG. 2 is a schematic view of a lifting device;
FIG. 3 is a schematic view of the structure of the first treatment tank;
fig. 4 is a schematic structural view of the limiting frame and the filter box.
In the figure, 1, a support frame body; 2. a mixer body; 21. a hopper; 22. a liquid inlet pipe; 23. a liquid inlet control valve; 3. a transfer table; 31. a water receiving bucket; 32. receiving a charging basket; 33. a connecting pipe; 34. a liquid discharge pipe; 4. a wastewater treatment tank; 41. a first treatment tank; 42. a second treatment tank; 43. a partition plate; 44. an overflow port; 45. a filter box; 46. a connecting rope; 5. a guard rail; 51. a connecting arm; 52. a limit frame; 53. scraping the strip; 7. a lifting device; 71. a hoist; 72. a lifting rope; 73. a hook; 8. a water circulation mechanism; 81. a reflux pump; 82. a return circulation pipe; 83. and a reflux control valve.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses fly ash mixer washs circulation system, refer to fig. 1, including locating support body 1 on the earth's surface, fixed mixer body 2 of wearing to locate support body 1, set up on the earth's surface and be located the transfer table 3 of discharging pipe below of mixer body 2, set up in waste water treatment pond 4 of earth's surface and fixed connection just enclose and locate waste water treatment pond 4 around rail guard 5 on the earth's surface.
The upper portion fixedly connected with a plurality of loading hopper 21 of mixer body 2 is used for adding flying ash, chelating agent and cement material respectively, and mixer body 2 fixedly connected with communicates in the feed liquor pipe 22 of inner chamber, and feed liquor pipe 22 is provided with the feed liquor control valve 23 of control flow, and mixer body 2 is provided with the agitating unit who mixes the stirring to the material, and agitating unit is prior art, and the description is omitted here.
In this embodiment, the transfer table 3 is rotatably connected to the ground surface around its own axis, and a rotating device for controlling the transfer table 3 to rotate is provided on the ground surface, and in this embodiment, the transfer table 3 is controlled to rotate by a belt transmission mode through a rotating motor. The transfer table 3 is provided with a water receiving bucket 31 and a water receiving bucket 32, the upper parts of which are provided with openings, the water receiving bucket 31 and the water receiving bucket 32 are distributed around the rotation axis of the transfer table 3, and the water receiving bucket 31 or the water receiving bucket 32 is in butt joint with a discharging pipe of the mixer body 2 through rotating the transfer table 3.
Referring to fig. 1 and 2, the wastewater treatment tank 4 is provided with a partition plate 43 dividing an inner cavity into a first treatment tank 41 and a second treatment tank 42, an overflow port 44 communicated between the first treatment tank 41 and the second treatment tank 42 is formed in the upper portion of the partition plate 43, a liquid discharge pipe 34 communicated with the first treatment tank 41 is arranged on the ground surface, a connecting pipe 33 communicated with the liquid discharge passage is fixedly connected to the water receiving bucket 31, and the connecting pipe 33 is a corrugated telescopic hose.
Referring to fig. 3 and 4, the first treatment tank 41 is provided with a filtration tank 45 for performing solid-liquid separation treatment, the upper portion of the filtration tank 45 is provided with a water outlet for abutting against the drain pipe 34, and the outer side wall of the filtration tank 45 has a filtration mesh. The inside wall fixedly connected with linking arm 51 of rail guard 5, linking arm 51 fixedly connected with is located first processing pond 41 and is used for the filter tank 45 to slide along vertical spacing frame 52 of wearing, when the diapire butt of filter tank 45 is in the inside wall of first processing pond 41, spacing frame 52 is located the upper portion of filter tank 45, the inner chamber area of spacing frame 52 is greater than the area of the cross section of filter tank 45, the inside wall fixedly connected with of spacing frame 52 butt in the scraping strip 53 of filter tank 45 lateral wall under the normality, scraping strip 53 is the rubber scraping strip.
Referring to fig. 2 and 4, the supporting frame body 1 is provided with a lifting device 7 for driving the filter box 45 to slide up and down, and the lifting device 7 includes a hoist 71 fixedly connected to the supporting frame body 1, a lifting rope 72 fixedly wound around the hoist 71 at one end, and a hook 73 fixedly connected to the other end of the lifting rope 72. The winding machine 71 is located above the first treatment tank 41, the connecting rope 46 used for hanging the hook 73 is fixedly connected to the upper end face of the filter tank 45, winding or unwinding of the lifting rope 72 is achieved through rotation of the winding machine 71, and accordingly lifting sliding of the filter tank 45 is achieved.
Referring to fig. 2, a water circulation mechanism 8 for pumping the liquid in the second treatment tank 42 into the mixer body 2 is provided between the second treatment tank 42 and the mixer body 2, and the water circulation mechanism 8 includes a return pump 81 and a return circulation pipe 82. One end of the reflux circulating pipe 82 is communicated with the inner cavity of the mixing mill body 2, the other end of the reflux circulating pipe 82 is connected with a reflux pump 81, the reflux pump 81 is arranged in the second treatment tank 42 to pump the liquid in the second treatment tank 42 to the reflux circulating pipe 82, and the reflux circulating pipe 82 is provided with a reflux control valve 83 for controlling flow.
The implementation principle of the cleaning circulation system of the fly ash mixer in the embodiment of the application is as follows: in the initial state, transfer table 3 rotates to connect storage bucket 32 and is located the position department under the discharging pipe of mixer body 2, after the chelate after the flying ash chelation was transferred to storage bucket 32 through the discharging pipe of mixer body 2, when need wash the inner chamber of mixer body 2, transfer table 3 rotates to connect storage bucket 31 and is located the position department under the discharging pipe of mixer body 2, wash mixer body 2 through the inlet tube, wash the waste water mixture that mixer body 2 produced and flow into filter tank 45 through water receiving bucket 31 in proper order, connecting pipe 33 and flowing back fluid passage, the waste water flows into in the first treatment tank 41 through the filter screen mesh of filter tank 45, the chelate then is blocked and remains in filter tank 45, carry out sedimentation treatment, the waste water further flows into second treatment tank 42 through overflow mouth 44 and stews sediment and stores, obtain comparatively clean waste water at second treatment tank 42, finally pump return circulation pipe 82 and pour into mixer body 2 into the waste water pump, be used for the washing of flying ash chelation or mixer body 2, can effective water economy resource.
When needs clear up the chelate in the rose box 45, promote the rose box 45 through elevating gear 7 for the rose box 45 breaks away from first processing pond 41, and the staff of being convenient for clear up the chelate in the rose box 45 or change rose box 45, rose box 45 lift slip in-process, scrape strip 53 butt all the time in the lateral wall of rose box 45, with strike off the clearance to the filth that adheres to on the rose box 45 lateral wall.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (9)
1. A cleaning and circulating system of a fly ash mixing mill is characterized in that: including locating support frame body (1) on the earth's surface, set up in mixer body (2) of support frame body (1), be located connect cask (31) of discharging pipe below of mixer body (2) and set up in waste water treatment pond (4) of earth's surface below, mixer body (2) are provided with feed liquor pipe (22) of intercommunication in the inner chamber, waste water treatment pond (4) are provided with partition plate (43) of separating into first treatment pond (41) and second treatment pond (42) with the inner chamber, overflow mouth (44) between first treatment pond (41) and second treatment pond (42) are seted up to partition plate (43), the earth's surface is provided with drain pipe (34) of intercommunication in first treatment pond (41), connect cask (31) to be provided with connecting pipe (33) of intercommunication in drain liquor passageway, be provided with between second treatment pond (42) and mixer body (2) with the liquid pumping mechanism (8) in mixer body (2) of carrying out the liquid in the second treatment pond.
2. A fly ash mixer cleaning circulation system as claimed in claim 1, wherein: the water circulation mechanism (8) comprises a reflux pump (81) and a reflux circulation pipe (82), one end of the reflux circulation pipe (82) is communicated with the inner cavity of the mixing mill body (2), the other end of the reflux circulation pipe (82) is connected with the reflux pump (81), and the reflux pump (81) is arranged in the second treatment tank (42) to pump liquid in the second treatment tank (42) to the reflux circulation pipe (82).
3. A fly ash mixer cleaning circulation system as claimed in claim 1, wherein: the sewage treatment device also comprises a protective fence (5) which is arranged on the ground surface and is surrounded around the sewage treatment tank (4).
4. A fly ash mixer cleaning circulation system according to claim 3, characterized in that: the first treatment tank (41) is provided with a filter box (45) for solid-liquid separation treatment, and the filter box (45) is provided with an opening of a butt joint liquid drain pipeline (34).
5. The fly ash mixer cleaning circulation system of claim 4, wherein: the filter box (45) is connected to the first treatment tank (41) in a vertical sliding manner, and the support frame body (1) is provided with a lifting device (7) for driving the filter box (45) to lift and slide.
6. The fly ash mixer cleaning circulation system of claim 5, wherein: the lifting device (7) comprises a winch (71) arranged on the supporting frame body (1), a lifting rope (72) with one end fixedly wound on the winch (71) and a hook (73) fixedly connected to the other end of the lifting rope (72), and the filter box (45) is provided with a connecting rope (46) hung on the hook (73).
7. The fly ash mixer cleaning circulation system of claim 5, wherein: the inner side wall of the protective fence (5) is fixedly connected with a limiting frame (52) for the filter box (45) to slide and pass through.
8. The fly ash mixer cleaning circulation system of claim 7, wherein: the inner side wall of the limit frame (52) is fixedly connected with a scraping strip (53) which is abutted to the outer side wall of the filter box (45).
9. A fly ash mixer cleaning circulation system as claimed in claim 1, wherein: still including setting up on the earth's surface and being located transfer table (3) of mixer body (2) below, connect cask (31) to set up on transfer table (3), connecting pipe (33) are the hose, transfer table (3) have still been placed and have connect storage bucket (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320661131.9U CN219399944U (en) | 2023-03-29 | 2023-03-29 | Cleaning and circulating system of fly ash mixing mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320661131.9U CN219399944U (en) | 2023-03-29 | 2023-03-29 | Cleaning and circulating system of fly ash mixing mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219399944U true CN219399944U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320661131.9U Active CN219399944U (en) | 2023-03-29 | 2023-03-29 | Cleaning and circulating system of fly ash mixing mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219399944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117902089A (en) * | 2024-03-18 | 2024-04-19 | 莱阳市昌安检验检测有限公司 | Sample storage device for architectural coating detection |
-
2023
- 2023-03-29 CN CN202320661131.9U patent/CN219399944U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117902089A (en) * | 2024-03-18 | 2024-04-19 | 莱阳市昌安检验检测有限公司 | Sample storage device for architectural coating detection |
| CN117902089B (en) * | 2024-03-18 | 2024-05-10 | 莱阳市昌安检验检测有限公司 | Sample storage device for architectural coating detection |
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