CN110125085A - A kind of Environmental-protecting dust-removing equipment - Google Patents

A kind of Environmental-protecting dust-removing equipment Download PDF

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Publication number
CN110125085A
CN110125085A CN201910415320.6A CN201910415320A CN110125085A CN 110125085 A CN110125085 A CN 110125085A CN 201910415320 A CN201910415320 A CN 201910415320A CN 110125085 A CN110125085 A CN 110125085A
Authority
CN
China
Prior art keywords
installation bin
pedestal
environmental
equipment
slide bar
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
Application number
CN201910415320.6A
Other languages
Chinese (zh)
Inventor
徐祥来
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Chenri Environmental Protection Technology Co Ltd
Original Assignee
Jiangsu Chenri Environmental Protection Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Chenri Environmental Protection Technology Co Ltd filed Critical Jiangsu Chenri Environmental Protection Technology Co Ltd
Priority to CN201910415320.6A priority Critical patent/CN110125085A/en
Publication of CN110125085A publication Critical patent/CN110125085A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06Spray cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00Accessories or details of general applicability for machines or apparatus for cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/04Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02Cleaning by the force of jets or sprays
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04Cleaning involving contact with liquid
    • B08B3/08Cleaning involving contact with liquid the liquid having chemical or dissolving effect
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02Cleaning by the force of jets, e.g. blowing-out cavities

Abstract

A kind of Environmental-protecting dust-removing equipment, including installation bin, water tank, high-pressure pump, pedestal, separation net, mounting rack and slide bar;Installation bin is internally provided with driving device, and the bottom of driving device is provided with pull rod;The bottom of pull rod is arranged in mounting rack;It is provided with atomizer on mounting rack, tracheae, water pipe and diversion pipe are provided on atomizer;The both ends of mounting rack are provided with fixing buckle;Sliding is provided with sprayer on slide bar;Sprayer includes nozzle, lantern ring and driving assembly;Lantern ring is set on slide bar, and is connect with sliding bar;The top of lantern ring is arranged in driving assembly;The bottom of lantern ring is arranged in nozzle;The bottom of installation bin is provided with connector, and the lower section of installation bin is arranged in pedestal;Installation bin and pedestal surround to form gas-tight silo;Separation net is provided on pedestal;The bottom of pedestal is provided with sewage pipe, and the middle of the base is to lower recess;In the present invention, atomizer is atomized using pressure type, and low energy consumption;The usage amount of water resource can be reduced, more economical environmental protection.

Description

A kind of Environmental-protecting dust-removing equipment
Technical field
The present invention relates to Environmental-protecting dust-removing technical field more particularly to a kind of Environmental-protecting dust-removing equipment.
Background technique
Currently, requiring to eliminate dust dirt in the manufacturing such as metallurgy, casting, cement building material, machinery, light industry, electric power Dye protects environment, improves working conditions.The dust type of different operating conditions, generation is also slightly different, and there has been proposed not thus With the deduster of model.Such as in polishing process, especially in bamboo and wood products' polishing, that there is dust particles is big, Dust Capacity is big The characteristics of;And in the rough grinding pass of stainless steel part, ironware, the characteristics of generation largely with Mars grit;Workpiece is after treatment Meeting adsorbing powder dust in need is in workpiece surface, in actual use, is generally carried out by dust of the artificial mode to workpiece surface Cleaning;But part workpiece surface is uneven, cleaning is got up cumbersome;Some metalworks add man-hour requirement to spray lubricating oil, ash Dirt, which is adsorbed on, to be more difficult to clear up on lubricating oil.
To solve the above problems, proposing a kind of Environmental-protecting dust-removing equipment in the application.
Summary of the invention
(1) goal of the invention
For solve background technique in there are workpiece after treatment can adsorbing powder dust in need in workpiece surface, in actual use, Generally cleaned by dust of the artificial mode to workpiece surface;But part workpiece surface is uneven, cleaning is got up very Trouble;Some metalworks add man-hour requirement to spray lubricating oil, and dust is adsorbed on lubricating oil the technical issues of being more difficult cleaning, this hair It is bright to propose a kind of Environmental-protecting dust-removing equipment, in the present invention, dust is blown afloat using blower, then to ash by way of atomizer spray Dirt is adsorbed, and atomizer is atomized using pressure type, and low energy consumption;Simultaneously relative to traditional water-washing method, water money can be reduced The usage amount in source, more economical environmental protection.
(2) technical solution
To solve the above problems, the present invention provides a kind of Environmental-protecting dust-removing equipment, including installation bin, water tank, high-pressure pump, pedestal, Separation net, mounting rack and slide bar;
Installation bin is internally provided with driving device, and the bottom of driving device is provided with pull rod;The bottom of pull rod is arranged in mounting rack Portion;It is provided with atomizer on mounting rack, tracheae, water pipe and diversion pipe are provided on atomizer;Tracheae, water pipe and diversion pipe are Elastic tube;And the length of tracheae, water pipe and diversion pipe is greater than the height of installation bin;Tracheae and the high pressure being arranged in outside installation bin Pump conducting connection;Connection is connected with the water tank being arranged in outside installation bin in water pipe;The both ends of mounting rack are provided with fixing buckle, slide bar It is detachably connected with fixing buckle;Sliding is provided with sprayer on slide bar;Sprayer includes nozzle, lantern ring and driving assembly;Lantern ring It is set on slide bar, and is connect with sliding bar;The top of lantern ring is arranged in driving assembly, for driving lantern ring sliding along slide bar It is dynamic;The bottom of lantern ring is arranged in nozzle, and connection is connected with diversion pipe for nozzle;
The bottom of installation bin is provided with connector, and the lower section of installation bin is arranged in pedestal;Installation bin and pedestal surround to form sealing Storehouse;Separation net is provided on pedestal;The bottom of pedestal is provided with sewage pipe, and the middle of the base is to lower recess, convenient for collecting sewage.
Preferably, the side of installation bin is provided with the first blower, and the other side is provided with the second blower;First blower and second The air outlet of blower is respectively positioned on inside installation bin.
Preferably, the first blower and the second blower are dried towards pedestal.
Preferably, the baffle for stopping sewage is vertically arranged on pedestal, baffle is between separation net and connector.
Preferably, the driving motor for being internally provided with drive connection part and stretching up and down along vertical direction of installation bin.
Preferably, connector is internally provided with connecting rod, and connecting rod and driving motor be sequentially connected.
Preferably, the outside of connecting rod is provided with sealing element, and sealing element is made of elastic material.
Preferably, nozzle is flat mouth mouth, and nozzle sprays fan-spray.
Above-mentioned technical proposal of the invention has following beneficial technical effect: in the present invention, first by work to be treated Part is placed on the separation net of pedestal;Driving motor is opened, driving motor drives connecting rod to move downward, and the sealing element made is from compression State is changed into tensional state, and when the bottom of connecting rod and base contacts, driving motor stops;At this time between installation bin and pedestal Form gas-tight silo;The first blower and the second blower are opened later, are dried towards pedestal;Some dusts of workpiece surface can be blown It rises;It keeps the first blower and the second blower is open state;It drives pull rod to decline along vertical direction by driving device, makes Sprayer at the top of workpiece at a distance from for 10-15cm stop;It will generate compressed air by high-pressure pump and be sent by tracheae and spray In day with fog, the water in water tank is sent into sprayer by water pipe;Water mist is melted into droplet under the action of air pressure, by leading Flow tube is sent into nozzle, and nozzle sprays fan-shaped water mist towards workpiece, to the dust of workpiece surface be removed clean;For work There are lubricating oil on part surface, and detergent can be added in water tank, dissolves lubricating oil after atomization, convenient for removing workpiece surface Dust;Dust and water are entered on pedestal by separation net, finally from sewage pipe outside discharger;Atomizer stops work later Make, the first blower dries workpiece blowing with the second blower;Workpiece is taken out later;It, will using blower in the present invention Dust is blown afloat, then is adsorbed by way of atomizer spray to dust, and atomizer is atomized using pressure type, and low energy consumption;Together When relative to traditional water-washing method, the usage amount of water resource can be reduced, more economical environmental protection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Environmental-protecting dust-removing equipment proposed by the present invention.
Fig. 2 is the structural schematic diagram of the atomizer in Environmental-protecting dust-removing equipment proposed by the present invention.
Fig. 3 is one of the structural schematic diagram of connector in Environmental-protecting dust-removing equipment proposed by the present invention.
Fig. 4 is the second structural representation of connector in Environmental-protecting dust-removing equipment proposed by the present invention.
Fig. 5 is the structural schematic diagram of sprayer in Environmental-protecting dust-removing equipment proposed by the present invention.
Appended drawing reference: 1, installation bin;2, the first blower;3, air outlet;4, connector;401, sealing element;402, driving electricity Machine;403, connecting rod;5, baffle;6, pedestal;7, sewage pipe;8, separation net;9, the second blower;10, workpiece;11, water tank;12, high Press pump;13, driving device;14, pull rod;15, mounting rack;16, fixing buckle;17, slide bar;18, sprayer;181, nozzle;182, Lantern ring;183, driving assembly;184, diversion pipe;19, atomizer;20, tracheae;21, water pipe.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment and join According to attached drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair Bright range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid this is unnecessarily obscured The concept of invention.
As shown in Figs. 1-5, a kind of Environmental-protecting dust-removing equipment proposed by the present invention, including installation bin 1, water tank 11, high-pressure pump 12, Pedestal 6, separation net 8, mounting rack 15 and slide bar 17;
Installation bin 1 is internally provided with driving device 13, and the bottom of driving device 13 is provided with pull rod 14;The setting of mounting rack 15 exists The bottom of pull rod 14;It is provided with atomizer 19 on mounting rack 15, tracheae 20, water pipe 21 and diversion pipe are provided on atomizer 19 184;Tracheae 20, water pipe 21 and diversion pipe 184 are elastic tube;And the length of tracheae 20, water pipe 21 and diversion pipe 184 is greater than peace The height of binning 1;It is in actual use not in the case where pipeline is resolutely pulled off;Tracheae 20 and setting are outside installation bin 1 High-pressure pump 12 be connected connection;Water pipe 21 is connected with the conducting of water tank 11 being arranged in outside installation bin 1;The both ends of mounting rack 15 are set It is equipped with fixing buckle 16, slide bar 17 is detachably connected with fixing buckle 16;Sliding is provided with sprayer 18 on slide bar 17;Sprayer 18 wraps Include nozzle 181, lantern ring 182 and driving assembly 183;Lantern ring 182 is set on slide bar 17, and is slidably connected with slide bar 17;Driving The top of lantern ring 182 is arranged in component 183, for driving lantern ring 182 to slide along slide bar 17;Nozzle 181 is arranged in lantern ring 182 Bottom, nozzle 181 and diversion pipe 184 conducting connect;
The bottom of installation bin 1 is provided with connector 4, and the lower section of installation bin 1 is arranged in pedestal 6;Installation bin 1 and pedestal 6 surround shape At gas-tight silo;Separation net 8 is provided on pedestal 6;The bottom of pedestal 6 is provided with sewage pipe 7, and 6 middle part of pedestal is convenient for lower recess Collect sewage.
In the present invention, first workpiece 10 to be treated is placed on the separation net 8 of pedestal 6;Driving motor 402 is opened, Driving motor 402 drives connecting rod 403 to move downward, and the sealing element 401 made is changed into tensional state from compressive state, works as connecting rod The stopping of driving motor 402 when 403 bottom and pedestal 6 contact;Gas-tight silo is formed between installation bin 1 and pedestal 6 at this time;It opens later The first blower 2 and the second blower 9 are opened, it is made to dry towards pedestal 6;Some dusts on 10 surface of workpiece can be blown afloat;It keeps First blower 2 and the second blower 9 are open state;It drives pull rod 14 to decline along vertical direction by driving device 13, makes Sprayer 18 stops at a distance from 10 top of workpiece for 10-15cm;Compressed air will be generated by high-pressure pump 12 and passes through tracheae 20 are sent into sprayer 18, and the water in water tank 11 is sent into sprayer 18 by water pipe 21;Water water under the action of air pressure It is atomized into droplet, is sent into nozzle 181 by diversion pipe 184, nozzle 181 sprays fan-shaped water mist towards workpiece 10, and leads to Component 183 of overdriving drives lantern ring 182 to move along slide bar 17, so that the nozzle 181 enable sprays entire workpiece 10 Mist;It is clean to remove the dust on 10 surface of workpiece;For 10 surface of workpiece, there are lubricating oil, can add in water tank 11 Add detergent, dissolve lubricating oil after atomization, convenient for removing the dust on 10 surface of workpiece;Dust is entered with water by separation net 8 On pedestal 6, finally from sewage pipe 7 outside discharger;Atomizer 19 stops working later, and the first blower 2 and the second blower 9 are right The blowing of workpiece 10 is dried;Workpiece 10 is taken out later;In the present invention, dust is blown afloat using blower, then pass through atomization The spraying mode of device 19 adsorbs dust, and atomizer 19 is atomized using pressure type, and low energy consumption;Simultaneously relative to traditional water Mode is washed, the usage amount of water resource can be reduced, more economical environmental protection.
In an alternative embodiment, the side of installation bin 1 is provided with the first blower 2, and the other side is provided with the second wind Machine 9;The air outlet 3 of first blower 2 and the second blower 9 is respectively positioned on inside installation bin 1.
In an alternative embodiment, the first blower 2 and the second blower 9 are dried towards pedestal 6.
In an alternative embodiment, be vertically arranged with the baffle 5 for stopping sewage on pedestal 6, baffle 5 be located at every Between off-network 8 and connector 4, effectively sewage can be stopped to flash.
In an alternative embodiment, the drive connection part 4 that is internally provided with of installation bin 1 is stretched up and down along vertical direction The driving motor 402 of contracting.
In an alternative embodiment, connector 4 is internally provided with connecting rod 403, connecting rod 403 and driving motor 402 Transmission connection.
In an alternative embodiment, the outside of connecting rod 403 is provided with sealing element 401, and sealing element 401 is elastic material It is made, can be spread with blocks dust to device external when work.
In an alternative embodiment, nozzle 181 is flat mouth mouth, and nozzle 181 sprays fan-spray, and spray area is more Greatly, effect is more preferable.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing Change example.

Claims (8)

1. a kind of Environmental-protecting dust-removing equipment, which is characterized in that including installation bin (1), water tank (11), high-pressure pump (12), pedestal (6), Separation net (8), mounting rack (15) and slide bar (17);
Installation bin (1) is internally provided with driving device (13), and the bottom of driving device (13) is provided with pull rod (14);Mounting rack (15) it is arranged in the bottom of pull rod (14);It is provided on mounting rack (15) atomizer (19), atomizer is provided with tracheae on (19) (20), water pipe (21) and diversion pipe (184);Tracheae (20), water pipe (21) and diversion pipe (184) are elastic tube;And tracheae (20), the length of water pipe (21) and diversion pipe (184) is greater than the height of installation bin (1);Tracheae (20) and setting are in installation bin (1) Connection is connected in external high-pressure pump (12);Water pipe (21) and setting are connected in the external water tank (11) of installation bin (1) to be connected;Installation The both ends of frame (15) are provided with fixing buckle (16), and slide bar (17) is detachably connected with fixing buckle (16);It slides and sets on slide bar (17) It is equipped with sprayer (18);Sprayer (18) includes nozzle (181), lantern ring (182) and driving assembly (183);Lantern ring (182) is arranged It is slidably connected on slide bar (17), and with slide bar (17);Driving assembly (183) is arranged at the top of lantern ring (182), for driving Lantern ring (182) is slided along slide bar (17);Nozzle (181) is arranged in the bottom of lantern ring (182), nozzle (181) and diversion pipe (184) conducting connection;
The bottom of installation bin (1) is provided with connector (4), and pedestal (6) is arranged in the lower section of installation bin (1);Installation bin (1) and bottom Seat (6) surrounds to form gas-tight silo;Separation net (8) are provided on pedestal (6);The bottom of pedestal (6) is provided with sewage pipe (7), bottom To lower recess in the middle part of seat (6), convenient for collecting sewage.
2. Environmental-protecting dust-removing equipment according to claim 1, which is characterized in that the side of installation bin (1) is provided with the first wind Machine (2), the other side are provided with the second blower (9);First blower (2) and the air outlet (3) of the second blower (9) are respectively positioned on installation bin (1) internal.
3. Environmental-protecting dust-removing equipment according to claim 2, which is characterized in that the first blower (2) and the second blower (9) equal court It dries to pedestal (6).
4. Environmental-protecting dust-removing equipment according to claim 1, which is characterized in that pedestal is vertically arranged on (6) for stopping The baffle (5) of sewage, baffle (5) are located between separation net (8) and connector (4).
5. Environmental-protecting dust-removing equipment according to claim 1, which is characterized in that the driving that is internally provided with of installation bin (1) connects The driving motor (402) that fitting (4) stretches up and down along vertical direction.
6. Environmental-protecting dust-removing equipment according to claim 5, which is characterized in that connector (4) is internally provided with connecting rod (403), connecting rod (403) and driving motor (402) are sequentially connected.
7. Environmental-protecting dust-removing equipment according to claim 6, which is characterized in that the outside of connecting rod (403) is provided with sealing element (401), sealing element (401) is made of elastic material.
8. Environmental-protecting dust-removing equipment according to claim 1, which is characterized in that nozzle (181) is flat mouth mouth, nozzle (181) Spray fan-spray.
CN201910415320.6A 2019-05-17 2019-05-17 A kind of Environmental-protecting dust-removing equipment Pending CN110125085A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910415320.6A CN110125085A (en) 2019-05-17 2019-05-17 A kind of Environmental-protecting dust-removing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910415320.6A CN110125085A (en) 2019-05-17 2019-05-17 A kind of Environmental-protecting dust-removing equipment

Publications (1)

Publication Number Publication Date
CN110125085A true CN110125085A (en) 2019-08-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910415320.6A Pending CN110125085A (en) 2019-05-17 2019-05-17 A kind of Environmental-protecting dust-removing equipment

Country Status (1)

Country Link
CN (1) CN110125085A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111282884A (en) * 2020-02-14 2020-06-16 杭州憶盛医疗科技有限公司 Cleaning device for new medicine research and development
CN111570125A (en) * 2020-06-03 2020-08-25 陈金杰 Effectual dust fall sprayer of dust fall

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100004515A (en) * 2008-07-04 2010-01-13 리텍엔지니어스 주식회사 A spray disc of rotary atomzer
CN102632048A (en) * 2012-05-05 2012-08-15 江苏合海机械制造有限公司 Cleaning machine provided with automatic lifting door
CN103419370A (en) * 2013-07-15 2013-12-04 广西钦州宇佳投资有限公司 Slide-bar type 3D printer capable allowing output materials to be changed
CN105618453A (en) * 2016-03-13 2016-06-01 林丽芳 Dust removing device for slag outlet of fuel boiler
CN206267063U (en) * 2016-12-13 2017-06-20 重庆市鹏舟机械厂 One kind does not influence machinery plant's road lowering or hoisting gear
CN107377474A (en) * 2017-08-08 2017-11-24 嘉善龙翔人造毛绒有限公司 A kind of fur cleaning equipment
CN108405483A (en) * 2018-04-23 2018-08-17 苏州瑞之弘空气净化有限公司 A kind of high-effective dust-removing room with collection airway dysfunction
CN108636042A (en) * 2018-06-04 2018-10-12 芜湖博创新能源科技有限公司 A kind of environment-friendly type building construction dust-extraction unit
CN108745959A (en) * 2018-05-28 2018-11-06 郑州搜趣信息技术有限公司 A kind of computer screen cleaning device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100004515A (en) * 2008-07-04 2010-01-13 리텍엔지니어스 주식회사 A spray disc of rotary atomzer
CN102632048A (en) * 2012-05-05 2012-08-15 江苏合海机械制造有限公司 Cleaning machine provided with automatic lifting door
CN103419370A (en) * 2013-07-15 2013-12-04 广西钦州宇佳投资有限公司 Slide-bar type 3D printer capable allowing output materials to be changed
CN105618453A (en) * 2016-03-13 2016-06-01 林丽芳 Dust removing device for slag outlet of fuel boiler
CN206267063U (en) * 2016-12-13 2017-06-20 重庆市鹏舟机械厂 One kind does not influence machinery plant's road lowering or hoisting gear
CN107377474A (en) * 2017-08-08 2017-11-24 嘉善龙翔人造毛绒有限公司 A kind of fur cleaning equipment
CN108405483A (en) * 2018-04-23 2018-08-17 苏州瑞之弘空气净化有限公司 A kind of high-effective dust-removing room with collection airway dysfunction
CN108745959A (en) * 2018-05-28 2018-11-06 郑州搜趣信息技术有限公司 A kind of computer screen cleaning device
CN108636042A (en) * 2018-06-04 2018-10-12 芜湖博创新能源科技有限公司 A kind of environment-friendly type building construction dust-extraction unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111282884A (en) * 2020-02-14 2020-06-16 杭州憶盛医疗科技有限公司 Cleaning device for new medicine research and development
CN111282884B (en) * 2020-02-14 2021-02-26 杭州翔毅科技有限公司 Cleaning device for new medicine research and development
CN111570125A (en) * 2020-06-03 2020-08-25 陈金杰 Effectual dust fall sprayer of dust fall

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