CN108917331A - A kind of chemical materials temperature drying device - Google Patents

A kind of chemical materials temperature drying device Download PDF

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Publication number
CN108917331A
CN108917331A CN201811030549.XA CN201811030549A CN108917331A CN 108917331 A CN108917331 A CN 108917331A CN 201811030549 A CN201811030549 A CN 201811030549A CN 108917331 A CN108917331 A CN 108917331A
Authority
CN
China
Prior art keywords
drying box
casing
air
drying
waste gas
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
CN201811030549.XA
Other languages
Chinese (zh)
Inventor
赵浩凯
Original Assignee
赵浩凯
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 赵浩凯 filed Critical 赵浩凯
Priority to CN201811030549.XA priority Critical patent/CN108917331A/en
Publication of CN108917331A publication Critical patent/CN108917331A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001Drying-air generating units, e.g. movable, independent of drying enclosure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005Treatment of dryer exhaust gases
    • F26B25/007Dust filtering; Exhaust dust filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06Chambers, containers, or receptacles
    • F26B25/14Chambers, containers, receptacles of simple construction
    • F26B25/16Chambers, containers, receptacles of simple construction mainly closed, e.g. drum

Abstract

The invention discloses a kind of chemical materials temperature drying devices, including drying box, ptc heater, wind pushing mechanism, waste gas cleaning mechanism, rotating mechanism, allocation mechanism and controller, inner casing is equipped in the drying box, thermal insulation layer is equipped between the drying box and the inner casing, ptc heater is equipped in the inner casing, the wind pushing mechanism is by air blower, air supply tube, air preheater collectively forms, the waste gas cleaning mechanism is by waste gas purification shell, exhaust emission tube, exhaust fan, active carbon filter net collectively forms, the rotating mechanism is by bearing block, first bearing, rotary shaft, turbine, shelf for storage, positioning column, Basket on bicycle for containing article, positioning ring, second bearing, worm screw, shaft coupling, decelerating motor collectively forms, the allocation mechanism is by telescope motor, rod for stiring materials, material toggling hairbrush collectively forms.The invention has the advantages that of simple structure and strong practicability.

Description

A kind of chemical materials temperature drying device
Technical field
The present invention relates to chemical drying equipment technical field, especially a kind of chemical materials temperature drying device.
Background technique
Often some materials are dried in terms of chemical industry, prevent the moisture for including in material from bringing shadow to post-production It rings, but existing material drying device is because of its unreasonable structural design, it, cannot be well to material during dry materials It is dried, temperature control is unreasonable in drying process, can not accomplish thermostatic control drying temperature, after be easy to causeing drying Material in moisture content is not up to standard and the underproof defect of stock product, not only waste resource, also considerably increase enterprise Cost, and exhaust gas can be generated during the drying process, if without necessary processing, direct emission will cause environmental pollution.
Summary of the invention
The purpose of the present invention is to solve the above problems, devise a kind of chemical materials temperature drying device.
Realize above-mentioned purpose the technical scheme is that, a kind of chemical materials temperature drying device, including drying box, Ptc heater, wind pushing mechanism, waste gas cleaning mechanism, rotating mechanism, allocation mechanism and controller, the drying box are interior equipped with interior Shell is equipped with thermal insulation layer between the drying box and the inner casing, in the inner casing and be located on the inner casing upper surface and right side It is equipped with ptc heater, drying box lower end side is equipped with the air inlet for penetrating through the inner casing, the drying box upper end and position The air outlet for penetrating through the inner casing is equipped in the air inlet opposite side, the wind pushing mechanism is by being located at the air inlet side Air blower, one end connect with the air blower outlet air end air supply tube that the other end connect with the air inlet, be serially connected in it is described Air preheater on air supply tube collectively forms, and the waste gas cleaning mechanism is by the waste gas purification positioned at the air outlet side Shell, the exhaust gas inlet for being located at waste gas purification shell upper end, the purification exhaust outlet for being located at waste gas purification shell lower end side, one It holds the exhaust emission tube for connecting the other end with the exhaust gas inlet and connecting with the air outlet, be mounted on the purification exhaust ports Exhaust fan, be mounted in the waste gas purification shell and be located at activated carbon mistake between the exhaust gas inlet and the purification exhaust outlet Strainer collectively forms, and the rotating mechanism is by being fixed on the bearing block of the drying box bottom end, being mounted on the inner casing and position First bearing, one end right above the bearing block be mounted on the other end in the bearing block be inserted through the first bearing and The rotary shaft that protrudes into the inner casing is mounted on whirlpool in the rotary shaft and between the bearing block and the first bearing Take turns, the shelf for storage for being fixed on the rotary shaft top, the positioning column being fixed on the shelf for storage, on the shelf for storage Basket on bicycle for containing article, be fixed on the Basket on bicycle for containing article lower end and suit positioning ring on the positioning column, be mounted on the drying box and Positioned at the rotary shaft side second bearing, be inserted through the second bearing and engaged with the turbine worm screw, be mounted on Shaft coupling on the worm screw, on the outside of the drying box and the decelerating motor that connect with the shaft coupling collectively forms, institute State allocation mechanism by be mounted on the drying box upper end and telescopic end protrude into the inner casing telescope motor, with the telescope motor Rod for stiring materials of telescopic end connection, the material toggling hairbrush for being mounted on rod for stiring materials lower end collectively form, and the controller is mounted on institute It states on drying box.
The thermal insulation layer is filled by mineral wool.
On the drying box and it is located at below the controller equipped with the switch gate hinged with the drying box, the switch Door is equipped with knob and transparent windows.
The switch gate be equipped with sealing rubber ring, the switch gate in closed state by the sealing rubber ring with The drying box keeps sealing.
The material toggling hairbrush is the heat-resisting hairbrush of hard.
The Basket on bicycle for containing article is cylindrical shape, is provided with several equally distributed ventilation holes on the Basket on bicycle for containing article.
The inner casing is equipped with Temperature Humidity Sensor.
Power supply wiring is connected on the controller, the power supply wiring other end is connected with attaching plug.
The controller is equipped with capacitor display screen and control button.
The controller and the ptc heater, blower, air preheater, exhaust fan, decelerating motor, telescope motor and Temperature Humidity Sensor is electrically connected.
A kind of chemical materials temperature drying device made using technical solution of the present invention, it is pre- by air preheater Hot-air blower is sent into the wind in drying box, then by ptc heater constant temperature heating drying oven, dry the temperature inside the box is made to keep permanent It is fixed, while overturn material when rotated by allocation mechanism material toggling by rotation Basket on bicycle for containing article, sufficiently with dry hot-air pair Stream, to achieve the effect that highly effective drying, and is equipped with waste gas cleaning mechanism, will be then exhausted from after waste gas purification, avoid pollution ring Border.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of chemical materials temperature drying device of the present invention;
Fig. 2 is a kind of front view of chemical materials temperature drying device of the present invention;
Fig. 3 is the schematic diagram of drying box of the present invention;
Fig. 4 is the partial enlarged view in Fig. 1 of the present invention at A;
Fig. 5 is the partial enlarged view figure in Fig. 1 of the present invention at B;
Fig. 6 is the schematic diagram of Basket on bicycle for containing article of the present invention;
Fig. 7 is the schematic diagram of shelf for storage of the present invention;
In figure, 1, drying box;2, ptc heater;3, controller;4, inner casing;5, thermal insulation layer;6, air inlet;7, air outlet; 8, air blower;9, air supply tube;10, air preheater;11, waste gas purification shell;12, exhaust gas inlet;13, exhaust outlet is purified;14, it gives up Gas discharge pipe;15, exhaust fan;16, active carbon filter net;17, bearing block;18, first bearing;19, rotary shaft;20, turbine; 21, shelf for storage;22, positioning column;23, Basket on bicycle for containing article;24, positioning ring;25, second bearing;26, worm screw;27, shaft coupling;28, slow down Motor;29, telescope motor;30, rod for stiring materials;31, material toggling hairbrush;32, switch gate;33, it shakes hands;34, transparent windows;35, close Seal rubber ring;36, ventilation hole;37, Temperature Humidity Sensor;38, power supply wiring;39, attaching plug;40, capacitor display screen;41, Control button.
Specific embodiment
The present invention is specifically described with reference to the accompanying drawing, as shown in figs. 1-7, a kind of chemical materials is filled with freeze-day with constant temperature It sets, including drying box 1, ptc heater 2, wind pushing mechanism, waste gas cleaning mechanism, rotating mechanism, allocation mechanism and controller 3, institute It states and is equipped with inner casing 4 in drying box 1, be equipped with thermal insulation layer 5 between the drying box 1 and the inner casing 4, in the inner casing 4 and be located at institute It states and is equipped with ptc heater 2 on 4 upper surface of inner casing and right side, the 1 lower end side of drying box, which is equipped with, penetrates through the inner casing 4 Air inlet 6,1 upper end of drying box and be located at 6 opposite side of air inlet and be equipped with the air outlet 7 for penetrating through the inner casing 4, The wind pushing mechanism connect the other end with 8 outlet air end of air blower by being located at the air blower 8 of 6 side of air inlet, one end The air supply tube 9 connecting with the air inlet 6, the air preheater 10 being serially connected on the air supply tube 9 collectively form, the exhaust gas Purification mechanism by be located at the waste gas purification shell 11 of 7 side of air outlet, be located at the exhaust gas of 11 upper end of waste gas purification shell into Mouthfuls 12, the purification exhaust outlet 13 that is located at the 11 lower end side of waste gas purification shell, one end connect another with the exhaust gas inlet 12 It holds the exhaust emission tube 14 connecting with the air outlet 7, the exhaust fan 15 being mounted at the purification exhaust outlet 13, be mounted on institute The active carbon filter net 16 stated in waste gas purification shell 11 and be located between the exhaust gas inlet 12 and the purification exhaust outlet 13 is common It constitutes, the rotating mechanism is by being fixed on the bearing block 17 of 1 bottom end of drying box, being mounted on the inner casing 4 and being located at institute State the first bearing 18 right above bearing block 17, one end is mounted on the other end in the bearing block 17 and is inserted through the first bearing 18 and protrude into the inner casing 4 rotary shaft 19, be mounted in the rotary shaft 19 and be located at the bearing block 17 and described the Turbine 20 between one bearing 18, is fixed on the shelf for storage 21 and determines the shelf for storage 21 for being fixed on 19 top of rotary shaft Position column 22, the Basket on bicycle for containing article 23 on the shelf for storage 21 are fixed on 23 lower end of Basket on bicycle for containing article and are sleeved on the positioning column Positioning ring 24 on 22, is inserted through institute at the second bearing 25 for being mounted on the drying box 1 and being located at 19 side of rotary shaft State second bearing 25 and engaged with the turbine 20 worm screw 26, be mounted on the worm screw 26 shaft coupling 27, be located at it is described The decelerating motor 28 connecting on the outside of drying box 1 and with the shaft coupling 27 collectively forms, and the allocation mechanism is described by being mounted on 1 upper end of drying box and telescopic end protrude into the telescope motor 29 of the inner casing 4, the material toggling connecting with 29 telescopic end of telescope motor Bar 30, the material toggling hairbrush 31 for being mounted on 30 lower end of rod for stiring materials collectively form, and the controller 3 is mounted on the drying box 1 On;The thermal insulation layer 5 is filled by mineral wool;It is equipped on the drying box 1 and below the controller 3 and is done with described The hinged switch gate 32 of dry case 1, the switch gate 32 are equipped with knob 33 and transparent windows 34;The switch gate 32 is equipped with Sealing rubber ring 35, the switch gate 32 keep close with the drying box 1 by the sealing rubber ring 35 in closed state Envelope;The material toggling hairbrush 31 is the heat-resisting hair of hard;The Basket on bicycle for containing article 23 is cylindrical shape, is provided on the Basket on bicycle for containing article 23 several uniform The ventilation hole 36 of distribution;The inner casing 4 is equipped with Temperature Humidity Sensor 37;Power supply wiring 38 is connected on the controller 3, it is described 38 other end of power supply wiring is connected with attaching plug 39;The controller 3 is equipped with capacitor display screen 40 and control button 41;It is described Controller 3 and the ptc heater 2, blower, air preheater 10, exhaust fan 15, decelerating motor 28, telescope motor 29 and temperature Humidity sensor 37 is electrically connected.
The characteristics of the present embodiment is to be equipped with ptc heater in inner casing and on inner casing upper surface and right side, do Dry case lower end side is equipped with perforation inner casing equipped with the air inlet for penetrating through inner casing, drying box upper end and positioned at air inlet opposite side Air outlet, wind pushing mechanism by be located at positioned at the air blower of air inlet side, one end and the air blower outlet air end connection other end with into The air supply tube of air port connection, the air preheater being serially connected on air supply tube collectively form, and waste gas cleaning mechanism is by being located at air outlet The waste gas purification shell of side, the exhaust gas inlet for being located at waste gas purification shell lower end side, the purification row for being located at waste gas purification shell upper end Port, one end and exhaust gas inlet connection the other end connect with air outlet exhaust emission tube, be mounted on the purification exhaust ports Exhaust fan, be mounted in waste gas purification shell and the common structure of active carbon filter net between exhaust gas inlet and exhaust vent At, rotating mechanism by the first axle that is fixed on the bearing block of drying box bottom end, is mounted on inner casing and is located at right above bearing block It holds, one end is mounted on the other end in bearing block and is inserted through first bearing and protrudes into rotary shaft in inner casing, installation on the rotary shaft And turbine between bearing block and first bearing, the shelf for storage for being fixed on rotary shaft top, the positioning that is fixed on shelf for storage Column, the positioning ring for being fixed on Basket on bicycle for containing article lower end and being sleeved on positioning column, is mounted on drying box at the Basket on bicycle for containing article on shelf for storage Second bearing that is upper and being located at rotary shaft side, is mounted on worm screw the worm screw for being inserted through second bearing and engaging with turbine Shaft coupling, on the outside of the drying box and the decelerating motor that connect with shaft coupling collectively forms, allocation mechanism is by being mounted on drying box Upper end and telescopic end protrude into the telescope motor of inner casing, the rod for stiring materials connecting with telescope motor telescopic end, are mounted on rod for stiring materials lower end Material toggling hairbrush collectively form.A kind of chemical materials temperature drying device made using technical solution of the present invention, is passed through Air preheater preheats the wind that air blower is sent into drying box, then by ptc heater constant temperature heating drying oven, makes in drying box Temperature is kept constant, while overturns material when rotated by allocation mechanism material toggling by rotation Basket on bicycle for containing article, sufficiently with it is dry Scorching cross-ventilation to achieve the effect that highly effective drying, and is equipped with waste gas cleaning mechanism, will be then exhausted from after waste gas purification, Avoid pollution environment.
In the present embodiment, door is turned on the switch, Basket on bicycle for containing article is taken out, will be put into Basket on bicycle for containing article with dry material, it will Basket on bicycle for containing article just enters on shelf for storage, is inserted in positioning ring in locating rod, to make to keep being stably connected between Basket on bicycle for containing article and shelf for storage, closes Make and break is closed the door, and starts dry work by the control button of controller, controller controls ptc heater, air preheater, air blast Machine, exhaust fan, telescope motor and decelerating motor are powered on, and ptc heater generates heat and maintains pre-set constant temperature, and air blower will Wind is blown by air supply tube, and air preheater heats the wind in air supply tube, and decelerating motor drives worm screw to rotate by shaft coupling, Worm screw engages connection with turbine to drive rotary shaft to rotate, and rotary shaft drives shelf for storage to rotate again, and Basket on bicycle for containing article is with shelf for storage It rotates and rotates, so that material be made to rotate, telescope motor is flexible by systemic presupposition program, and telescope motor telescopic end is stretched out and driven Under rod for stiring materials will, so that material toggling hairbrush is dropped to the height that can be contacted with material, material toggling hairbrush to the material rotated in Basket on bicycle for containing article into Row is stirred, its overturning movement is made, and increases the area with hot-air convection, and hot wind and material generate convection current and carry the water in material Point be discharged into waste gas purification shell by air outlet, exhaust emission tube, exhaust gas after the filtering of activated charcoal strainer by exhaust fan from It is extracted out in purification exhaust outlet, the temperature and humidity information of inner casing is sent controller by Temperature Humidity Sensor, and on capacitor display screen It shows, staff can pass through the concrete condition of drying operation in transparent windows real time inspection drying box.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, those skilled in the art The principle of the present invention is embodied to some variations that some of them part may be made, belongs to the scope of protection of the present invention it It is interior.

Claims (10)

1. a kind of chemical materials temperature drying device, including drying box (1), ptc heater (2), wind pushing mechanism, waste gas purification Mechanism, rotating mechanism, allocation mechanism and controller (3), which is characterized in that inner casing (4) are equipped in the drying box (1), it is described Be equipped with thermal insulation layer (5) between drying box (1) and the inner casing (4), in the inner casing (4) and be located at the inner casing (4) upper surface and It is equipped on right side ptc heater (2), drying box (1) the lower end side is equipped with the air inlet for penetrating through the inner casing (4) (6), drying box (1) upper end and the air outlet positioned at the air inlet (6) opposite side equipped with the perforation inner casing (4) (7), the wind pushing mechanism is by positioned at the air blower (8) of the air inlet (6) side, one end and the air blower (8) outlet air end Connect the air supply tube (9) that the other end is connect with the air inlet (6), the air preheater being serially connected on the air supply tube (9) (10) it collectively forms, the waste gas cleaning mechanism is described in being located at the waste gas purification shell (11) of the air outlet (7) side, being located at The exhaust gas inlet (12) of waste gas purification shell (11) upper end, the purification exhaust outlet for being located at waste gas purification shell (11) the lower end side (13), one end connect exhaust emission tube (14), the installation that the other end is connect with the air outlet (7) with the exhaust gas inlet (12) Exhaust fan (15) at purification exhaust outlet (13), be mounted in the waste gas purification shell (11) and be located at the exhaust gas into Active carbon filter net (16) between mouth (12) and purification exhaust outlet (13) collectively forms, and the rotating mechanism is by being fixed on State the bearing block (17) of drying box (1) bottom end, be mounted on the inner casing (4) and be located at right above the bearing block (17) the One bearing (18), one end are mounted on the other end in the bearing block (17) and are inserted through the first bearing (18) and protrude into described Rotary shaft (19) in shell (4) is mounted on the rotary shaft (19) and is located at the bearing block (17) and the first bearing (18) turbine (20) between, is fixed on the shelf for storage (21) shelf for storage (21) for being fixed on the rotary shaft (19) top Positioning column (22), be located at the shelf for storage (21) on Basket on bicycle for containing article (23), be fixed on the Basket on bicycle for containing article (23) lower end and suit On the positioning column (22) positioning ring (24), be mounted on the drying box (1) and be located at the rotary shaft (19) side Second bearing (25), be inserted through the second bearing (25) and engaged with the turbine (20) worm screw (26), be mounted on institute It states the shaft coupling (27) on worm screw (26), be located at the deceleration electricity connecting on the outside of the drying box (1) and with the shaft coupling (27) Machine (28) collectively forms, and the allocation mechanism is by being mounted on the drying box (1) upper end and telescopic end protrudes into the inner casing (4) Telescope motor (29), is mounted under described rod for stiring materials (30) rod for stiring materials (30) connecting with the telescope motor (29) telescopic end The material toggling hairbrush (31) at end collectively forms, and the controller (3) is mounted on the drying box (1).
2. a kind of chemical materials temperature drying device according to claim 1, which is characterized in that the thermal insulation layer (5) It is filled by mineral wool.
3. a kind of chemical materials temperature drying device according to claim 1, which is characterized in that the drying box (1) It goes up and is located at below the controller (3) and be equipped with the switch gate (32) hinged with the drying box (1), on the switch gate (32) Equipped with knob (33) and transparent windows (34).
4. a kind of chemical materials temperature drying device according to claim 3, which is characterized in that the switch gate (32) It is equipped with sealing rubber ring (35), the switch gate (32) is in closed state by the sealing rubber ring (35) and described dry Dry case (1) keeps sealing.
5. a kind of chemical materials temperature drying device according to claim 1, which is characterized in that the material toggling hairbrush It (31) is the heat-resisting hairbrush of hard.
6. a kind of chemical materials temperature drying device according to claim 1, which is characterized in that the Basket on bicycle for containing article (23) For cylindrical shape, several equally distributed ventilation holes (36) are provided on the Basket on bicycle for containing article (23).
7. a kind of chemical materials temperature drying device according to claim 1, which is characterized in that on the inner casing (4) Equipped with Temperature Humidity Sensor (37).
8. a kind of chemical materials temperature drying device according to claim 1, which is characterized in that the controller (3) On be connected with power supply wiring (38), power supply wiring (38) other end is connected with attaching plug (39).
9. a kind of chemical materials temperature drying device according to claim 1, which is characterized in that the controller (3) It is equipped with capacitor display screen (40) and control button (41).
10. a kind of chemical materials temperature drying device according to claim 1, which is characterized in that the controller (3) With the ptc heater (2), blower, air preheater (10), exhaust fan (15), decelerating motor (28), telescope motor (29) and Temperature Humidity Sensor (37) is electrically connected.
CN201811030549.XA 2018-09-05 2018-09-05 A kind of chemical materials temperature drying device Pending CN108917331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811030549.XA CN108917331A (en) 2018-09-05 2018-09-05 A kind of chemical materials temperature drying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811030549.XA CN108917331A (en) 2018-09-05 2018-09-05 A kind of chemical materials temperature drying device

Publications (1)

Publication Number Publication Date
CN108917331A true CN108917331A (en) 2018-11-30

Family

ID=64407538

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811030549.XA Pending CN108917331A (en) 2018-09-05 2018-09-05 A kind of chemical materials temperature drying device

Country Status (1)

Country Link
CN (1) CN108917331A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111550981A (en) * 2020-04-23 2020-08-18 芜湖碧水谣医疗设备科技有限公司 Drying device for medical instrument and appliance of department of stomatology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111550981A (en) * 2020-04-23 2020-08-18 芜湖碧水谣医疗设备科技有限公司 Drying device for medical instrument and appliance of department of stomatology

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