CN111637712A - Drying device of gallium oxide powder - Google Patents
Drying device of gallium oxide powder Download PDFInfo
- Publication number
- CN111637712A CN111637712A CN202010519773.6A CN202010519773A CN111637712A CN 111637712 A CN111637712 A CN 111637712A CN 202010519773 A CN202010519773 A CN 202010519773A CN 111637712 A CN111637712 A CN 111637712A
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- Prior art keywords
- drying
- gallium oxide
- box
- oxide powder
- grinding
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/12—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices
- F26B11/14—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices the stirring device moving in a horizontal or slightly-inclined plane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
- B02C7/08—Crushing or disintegrating by disc mills with coaxial discs with vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to the technical field of semiconductor material processing, and discloses a drying device for gallium oxide powder, which comprises a drying box, wherein a grinding plate is arranged in the drying box, a plurality of grinding holes are formed in the middle of the grinding plate, a rotating cylinder is arranged in the middle of the upper end of the grinding plate through a bearing, a grinding disc is arranged on the outer side of the lower end of the rotating cylinder, limiting frames are arranged on two sides of the upper end of the drying box, a rotating shaft is arranged between the upper ends of the limiting frames, a crank is arranged in the middle of the rotating shaft, a sliding sleeve is arranged in the middle of the crank, a sliding column is arranged at the lower end of the sliding sleeve, a lead screw is hinged to the lower end of. According to the invention, through the mutual matching of the screw rod and the rotary cylinder, the reciprocating rotation of the rotary blade and the grinding disc is realized, the crushing effect of the agglomerated gallium oxide powder before drying is realized, and the final drying effect of the gallium oxide powder is realized.
Description
Technical Field
The invention relates to the technical field of semiconductor material processing, in particular to a drying device for gallium oxide powder.
Background
Gallium oxide is a wide band gap oxide semiconductor with a forbidden band width of about 4.9eV at room temperature. Gallium oxide has various structuresβ -Ga having a monoclinic structure at room temperature203And is most stable. The semiconductor material is a transparent conductive oxide semiconductor material, has wide application prospect in the aspect of photoelectronic devices, and can be used in the aspects of insulating layers of Ga-based semiconductor materials, transparent conductive oxides, ultraviolet luminescent materials, gas sensors and the like. With the rise of research on hot flashes, much research has been focused on the preparation of Ga having nanostructures203Materials such as nanowires, nanorods, nanobelts, etc. have been synthesized by various methods, and their application values in the fields of optoelectronic devices, gas sensors, catalysis, etc. have been gradually discovered.
The step of forming gallium oxide in the production process of gallium oxide needs to be carried out in an aqueous solution, but Ga203Can not contain water in use, and Ga is applied to the electronic industry203The purity and the drying degree of the powder are high, the water carrying rate of the finished gallium oxide can not exceed 0.1%, so that water in the gallium oxide must be removed and new impurities cannot be introduced, and the traditional gallium oxide heating and drying method is easy to oxidize and introduces new impurities to cause unqualified powder quality.
Chinese patent (publication number: CN 204214225U) discloses a drying device for gallium oxide powder, which comprises a drying chamber and a feed pipe, wherein a heating belt is arranged on the periphery of the drying chamber, one end of the feed pipe extends into the drying chamber and is connected with a rotary spray head, the other end of the feed pipe extends into a charging chute through a peristaltic pump, an exhaust pipe and a controller which are communicated with the upper end of the drying chamber and are provided with a vacuum pump are arranged at the upper end of the drying chamber, the lower end of the feed pipe is communicated with a discharge port through a discharge valve, and a thermocouple is arranged on the side surface of the feed pipe.
Disclosure of Invention
The present invention is directed to a drying apparatus for gallium oxide powder, which solves the above problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme:
a drying device for gallium oxide powder comprises a drying box, wherein a grinding plate is arranged in the drying box, a plurality of grinding holes are formed in the middle of the grinding plate, a rotating cylinder is arranged in the middle of the upper end of the grinding plate through a bearing, a plurality of rotating blades are arranged on the outer side of the upper end of the rotating cylinder, a grinding disc is arranged on the outer side of the lower end of the rotating cylinder, limiting frames are arranged on two sides of the upper end of the drying box, a rotating shaft is arranged between the upper ends of the limiting frames, a crank is arranged in the middle of the rotating shaft, a sliding sleeve is arranged in the middle of the crank, a sliding column is arranged at the lower end of the sliding sleeve, a lead screw is hinged to the lower end of the sliding column, the lead screw penetrates through the inside of the rotating cylinder, the bottom of the rotating cylinder is connected with a lifting plate, a plurality of contact pins matched with, the outer side of the piston plate is provided with an air guide box, and the inside of the air guide box is connected with an air box through an air guide pipe.
As a further scheme of the invention: the drying cabinet upper end both sides installation feeder hopper, the sealed lid of feeder hopper upper end installation.
As a further scheme of the invention: the right end of the rotating shaft is provided with a rotating motor, and the rotating motor is fixed in the middle of the limiting frame.
As a further scheme of the invention: the drying plate and the interior of the moving column are both of hollow structures, and a plurality of drying holes are formed in the upper end of the drying plate.
As a further scheme of the invention: the material discharging pipe is arranged on two sides of the lower end of the drying box, and the material discharging cover is arranged at the bottom of the material discharging pipe.
As a further scheme of the invention: and an internal thread hole matched with the screw rod is formed in the rotating cylinder.
As a further scheme of the invention: the air leading box is communicated with a heating box through a vent pipe, and the bottom of the heating box is communicated with an air inlet pipe.
As a further scheme of the invention: and the lower end of the drying box is also provided with a supporting leg.
As a further scheme of the invention: the upper end of the drying plate is of an inclined plane structure.
As a still further scheme of the invention: the middle part of the movable column positioned in the gas box is provided with a plurality of gas inlets.
Compared with the prior art, the invention has the beneficial effects that:
the utility model provides a drying device of gallium oxide powder, rational in infrastructure, the modern design through the lead screw that is equipped with and rotating cylinder between mutually supporting, has realized the reciprocal rotation of rotating leaf and abrasive disc, has realized the crushing effect of the gallium oxide powder of blocking before the drying, sets up the cooperation between gas tank, bleed case and the stoving board simultaneously, has realized the final drying effect to the gallium oxide powder, and the practicality is strong, and the reliability is high.
Drawings
Fig. 1 is a schematic structural view of a drying apparatus for gallium oxide powder.
Fig. 2 is a schematic structural view of a rotary drum in a drying apparatus for gallium oxide powder.
Fig. 3 is a schematic view of the internal structure of a gas box and a gas introduction box in a drying apparatus for gallium oxide powder.
In the figure: 1-drying box, 2-limiting frame, 3-rotating shaft, 4-crank, 5-sliding sleeve, 6-rotating motor, 7-feeding hopper, 8-rotating cylinder, 9-rotating blade, 10-grinding disc, 11-grinding plate, 12-grinding hole, 13-lifting plate, 14-inserting needle, 15-moving column, 16-drying plate, 17-gas box, 18-air-entraining pipe, 19-air-entraining box, 20-air pipe, 21-discharging pipe, 22-supporting leg, 23-discharging cover, 24-air inlet hole, 25-piston plate, 26-internal threaded hole, 27-heating box, 28-air inlet pipe, 29-sliding column and 30-screw.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
Referring to fig. 1 to 3, in the embodiment of the present invention, a drying device for gallium oxide powder includes a drying box 1, the lower end of the drying box 1 is further provided with support legs 22 for supporting and fixing the whole device, two sides of the lower end of the drying box 1 are provided with discharge pipes 21 for discharging dried powder, the bottom of each discharge pipe 21 is provided with a discharge cover 23 for operating opening and closing of the discharge pipe 21, two sides of the upper end of the drying box 1 are provided with feed hoppers 7 for introducing gallium oxide powder to be dried into the drying box 1, the upper end of each feed hopper 7 is provided with a sealing cover for sealing the feed hoppers 7, so as to prevent the powder in the feed hoppers 7 from being led out during the drying process, the inside of the drying box 1 is provided with a grinding plate 11, the middle of the grinding plate 11 is provided with a plurality of grinding holes 12 for discharging the gallium oxide powder after grinding and crushing, the middle part of the upper end of the grinding plate 11 is provided with a rotating cylinder 8 through a bearing, the outer side of the upper end of the rotating cylinder 8 is provided with a plurality of rotating blades 9, the outer side of the lower end of the rotating cylinder 8 is provided with a grinding disc 10 which is matched with the grinding plate 11 to realize the grinding effect, two sides of the upper end of the drying box 1 are provided with limiting frames 2 which are used for limiting the rotation of the rotating shaft 3 to avoid the shaking, the rotating shaft 3 is arranged between the upper ends of the limiting frames 2, the right end of the rotating shaft 3 is provided with a rotating motor 6 which is used for driving the rotating shaft 3 to rotate, the rotating motor 6 is fixed at the middle part of the limiting frames 2, the middle part of the rotating shaft 3 is provided with a crank 4, the middle part of the crank 4 is provided with a sliding sleeve 5, the lower end of the sliding sleeve 5 is provided with a sliding column 29, the lower end of the sliding column, the screw 30 penetrates through the rotating cylinder 8, the bottom of the screw is connected with a lifting plate 13, the upper end of the lifting plate 13 is provided with a plurality of inserting pins 14 which are matched with the grinding holes 12 so as to be inserted into the grinding holes 12 to conduct the grinding holes 12, the middle part of the lower end of the lifting plate 13 is provided with a moving column 15, the middle part of the moving column 15 is provided with a drying plate 16, the interiors of the drying plate 16 and the moving column 15 are both hollow structures, the upper end of the drying plate 16 is provided with a plurality of drying holes so as to guide out air in the drying plate 16, the bottom end of the moving column 15 penetrates through a gas box 17 arranged at the bottom end in the drying box 1 and is connected with a piston plate 25 at the bottom end of the drying box 1 so as to drive the piston plate 25 to move linearly up and down, a gas guiding box 19 is arranged outside the piston plate 25, the interior of the gas guiding box 19 is connected with the gas box 17 through a gas guiding pipe 18, the air guiding box 19 is communicated with a heating box 27 through a vent pipe 20, the bottom of the heating box 27 is communicated with an air inlet pipe 28 for guiding the air in the air inlet pipe 28 into the heating box 27 so as to enter the air guiding box 19, and a plurality of air inlet holes 24 are arranged in the middle of the moving column 15 in the air box 17 for guiding the air in the air box 17 into the moving column 15 and then discharging the air under the action of the drying plate 16.
Example 2
In another embodiment of the invention, a drying device for gallium oxide powder comprises a drying box 1, wherein the lower end of the drying box 1 is further provided with supporting legs 22, two sides of the lower end of the drying box 1 are provided with discharge pipes 21, the bottom of the discharge pipes 21 is provided with a discharge cover 23, two sides of the upper end of the drying box 1 are provided with feed hoppers 7, the upper end of each feed hopper 7 is provided with a sealing cover, the inside of the drying box 1 is provided with a grinding plate 11, the middle part of the grinding plate 11 is provided with a plurality of grinding holes 12, the middle part of the upper end of the grinding plate 11 is provided with a rotating cylinder 8 through a bearing, the outer side of the upper end of the rotating cylinder 8 is provided with a plurality of rotating blades 9, the outer side of the lower end of the rotating cylinder 8 is provided with a grinding disc 10, two sides of the upper end of the drying box 1 are provided with limiting frames 2, a rotating shaft 3, the middle part of the crank 4 is provided with a sliding sleeve 5, the lower end of the sliding sleeve 5 is provided with a sliding column 29, the lower end of the sliding column 29 is hinged with a lead screw 30, the inside of the rotating cylinder 8 is provided with an internal thread hole 26 matched with the lead screw 30, the lead screw 30 penetrates through the inside of the rotating cylinder 8, the bottom of the lead screw is connected with a lifting plate 13, the upper end of the lifting plate 13 is provided with a plurality of contact pins 14 matched with the grinding holes 12, the middle part of the lower end of the lifting plate 13 is provided with a moving column 15, the middle part of the moving column 15 is provided with a drying plate 16, the inside of the drying plate 16 and the moving column 15 is of a hollow structure, the upper end of the drying plate 16 is provided with a plurality of drying holes, the bottom of the moving column 15 penetrates through a gas box 17 arranged at the bottom inside of the drying box 1 and the bottom of the drying box 1 is connected with a piston plate 25, the, the bottom of the heating box 27 is communicated with an air inlet pipe 28, and the middle part of the moving column 15 positioned in the gas box 17 is provided with a plurality of air inlet holes 24, and the difference between the embodiment and the above embodiment is that the upper end of the drying plate 16 is of an inclined plane structure, so that the powder led out from the grinding holes 12 can fall on the drying plate 16 more easily, and can be recovered under the action of the discharge pipe 21.
In the invention, when the drying oven works, powder to be dried is led into the drying oven 1, then the rotating motor 6 is started, the rotating motor 6 drives the rotating shaft 3 to rotate, so that the crank 4 drives the sliding sleeve 5 to rotate, then, under the action of the sliding column 29, the lead screw 30 moves up and down, on one hand, the rotating cylinder 8 rotates, the rotating blade 9 breaks up the powder and enters the lower end of the grinding disc 10, then the grinding plate 11 is matched with the lifting plate 13 to realize the grinding effect, on the other hand, the lifting plate 13 drives the contact pins 14 to move up and down towards the grinding holes 12 to avoid the powder from blocking the grinding holes 12, at the same time, the moving column 15 moves up and down, so that the piston plate 25 moves up and down synchronously, the gas guiding box 19 is ensured to guide the gas into the gas box 17, therefore, hot air enters the interior of the moving column 15 through the air inlet holes 24 and is discharged under the action of drying holes in the drying plate 16, and efficient drying of powder is achieved. The invention has reasonable structure and novel design, realizes the reciprocating rotation of the rotating blade 9 and the grinding disc 10 and the crushing effect of the agglomerated gallium oxide powder before drying by the mutual matching of the screw rod 30 and the rotating cylinder 8, and realizes the final drying effect of the gallium oxide powder by the matching of the gas box 17, the air-entraining box 19 and the drying plate 16, thereby having strong practicability and high reliability.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A drying device for gallium oxide powder comprises a drying box (1), wherein a grinding plate (11) is arranged inside the drying box (1), a plurality of grinding holes (12) are formed in the middle of the grinding plate (11), and is characterized in that a rotating cylinder (8) is arranged in the middle of the upper end of the grinding plate (11) through a bearing, a plurality of rotating blades (9) are arranged on the outer side of the upper end of the rotating cylinder (8), a grinding disc (10) is arranged on the outer side of the lower end of the rotating cylinder (8), limiting frames (2) are arranged on two sides of the upper end of the drying box (1), a rotating shaft (3) is arranged between the upper ends of the limiting frames (2), a crank (4) is arranged in the middle of the rotating shaft (3), a sliding sleeve (5) is arranged in the middle of the crank (4), a sliding column (29) is arranged at the lower end of the sliding sleeve (5), a lead screw (30, lifter plate (13) upper end is equipped with a plurality of contact pins (14) of mutually supporting with grinding hole (12), lifter plate (13) lower extreme mid-mounting removes post (15), removes post (15) mid-mounting drying plate (16), it is connected with piston board (25) to remove gas tank (17) and drying cabinet (1) bottom of post (15) bottom of passing the inside bottom of locating drying cabinet (1), and piston board (25) outside installation air box (19), and air box (17) are connected with through bleed pipe (18) to air box (19) inside.
2. The drying device for gallium oxide powder according to claim 1, wherein the drying box (1) is provided with a feed hopper (7) at both sides of the upper end, and the upper end of the feed hopper (7) is provided with a sealing cover.
3. The drying device for gallium oxide powder according to claim 1, wherein the right end of the rotating shaft (3) is provided with a rotating motor (6), and the rotating motor (6) is fixed in the middle of the limiting frame (2).
4. The drying device for gallium oxide powder according to claim 1, wherein the drying plate (16) and the moving column (15) are both hollow, and the drying plate (16) has a plurality of drying holes at the upper end.
5. The drying apparatus for gallium oxide powder according to claim 1, wherein the drying oven (1) is provided with discharge pipes (21) at both sides of the lower end thereof, and a discharge cover (23) is provided at the bottom of the discharge pipes (21).
6. The drying device of gallium oxide powder according to claim 1, characterized in that the rotating cylinder (8) is internally provided with an internally threaded hole (26) cooperating with a threaded spindle (30).
7. The drying device for gallium oxide powder according to claim 1, wherein the air introducing box (19) is connected to the heating box (27) through the vent pipe (20), and the bottom of the heating box (27) is connected to the air inlet pipe (28).
8. Drying device for gallium oxide powder according to claim 1 or 5, characterized by the fact that the lower end of the drying box (1) is also equipped with support legs (22).
9. The drying apparatus for gallium oxide powder according to claim 1 or 4, wherein the upper end of the drying plate (16) is beveled.
10. A drying device for gallium oxide powder according to claim 4, characterized by the fact that the moving column (15) inside the gas box (17) has several gas inlet holes (24) in its middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010519773.6A CN111637712A (en) | 2020-06-09 | 2020-06-09 | Drying device of gallium oxide powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010519773.6A CN111637712A (en) | 2020-06-09 | 2020-06-09 | Drying device of gallium oxide powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111637712A true CN111637712A (en) | 2020-09-08 |
Family
ID=72330075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010519773.6A Withdrawn CN111637712A (en) | 2020-06-09 | 2020-06-09 | Drying device of gallium oxide powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111637712A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460917A (en) * | 2020-11-24 | 2021-03-09 | 浙江德清蓝雅晶体纤维有限公司 | Ceramic fiber production equipment |
| CN113566528A (en) * | 2021-07-08 | 2021-10-29 | 靖江市恒政增稠材料厂 | Drying kettle for producing sodium cyanate and production process thereof |
| CN113654340A (en) * | 2021-10-20 | 2021-11-16 | 江苏邱成机电有限公司 | Chemical raw material drying device |
| CN113720122A (en) * | 2021-11-03 | 2021-11-30 | 山东泰诺药业有限公司 | Fertilizer quick drying device |
| CN113856826A (en) * | 2021-09-26 | 2021-12-31 | 山东艺术学院 | High-efficient breaker is used in ceramic manufacture |
| CN114522501A (en) * | 2022-02-21 | 2022-05-24 | 连云港市工投集团利海化工有限公司 | Device and method for efficiently recycling hydrogen chloride tail gas |
-
2020
- 2020-06-09 CN CN202010519773.6A patent/CN111637712A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460917A (en) * | 2020-11-24 | 2021-03-09 | 浙江德清蓝雅晶体纤维有限公司 | Ceramic fiber production equipment |
| CN113566528A (en) * | 2021-07-08 | 2021-10-29 | 靖江市恒政增稠材料厂 | Drying kettle for producing sodium cyanate and production process thereof |
| CN113856826A (en) * | 2021-09-26 | 2021-12-31 | 山东艺术学院 | High-efficient breaker is used in ceramic manufacture |
| CN113654340A (en) * | 2021-10-20 | 2021-11-16 | 江苏邱成机电有限公司 | Chemical raw material drying device |
| CN113654340B (en) * | 2021-10-20 | 2022-01-18 | 江苏邱成机电有限公司 | Chemical raw material drying device |
| CN113720122A (en) * | 2021-11-03 | 2021-11-30 | 山东泰诺药业有限公司 | Fertilizer quick drying device |
| CN114522501A (en) * | 2022-02-21 | 2022-05-24 | 连云港市工投集团利海化工有限公司 | Device and method for efficiently recycling hydrogen chloride tail gas |
| CN114522501B (en) * | 2022-02-21 | 2022-12-09 | 连云港市工投集团利海化工有限公司 | Efficient hydrogen chloride tail gas recycling device and method |
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Application publication date: 20200908 |
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