CN111454776A - Continuous production device for removing impurities of fragrant raw materials by using gas and using method thereof - Google Patents
Continuous production device for removing impurities of fragrant raw materials by using gas and using method thereof Download PDFInfo
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- CN111454776A CN111454776A CN202010442978.9A CN202010442978A CN111454776A CN 111454776 A CN111454776 A CN 111454776A CN 202010442978 A CN202010442978 A CN 202010442978A CN 111454776 A CN111454776 A CN 111454776A
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention relates to a continuous production device for removing impurities of a fragrant raw material by using gas and a using method thereof, wherein the continuous production device comprises a raw material containing tank (1), a feeding port (2), a discharging port (3), a gas inlet (4) and a gas outlet (5); the top of the raw material containing tank (1) is provided with a sealing cover (6); a stirring motor (7) is arranged in the center of the top of the sealing cover (6); the bottom of the stirring motor (7) is connected with the stirring shaft (9) through a connecting flange (8); the stirring shaft (9) is arranged inside the raw material containing tank (1) and is of a hollow structure; a plurality of air holes (10) are arranged on the stirring shaft (9); a stirring belt (11) is arranged on the outer wall of the stirring shaft (9) in a surrounding way; and so on. According to the invention, high-temperature gas is introduced into the raw material containing tank to carry out impurity removal, so that the properties of the raw materials cannot be damaged and the raw materials cannot be lost in the whole impurity removal process, the gas can be recycled, and the production cost is saved.
Description
Technical Field
The invention relates to the technical field of spice raw material processing equipment, in particular to a continuous production device for removing impurities of spice raw materials by using gas and a using method thereof.
Background
The natural perfume processing means extracting the perfume components from the roots, stems, branches, leaves, barks, flowers, fruits, seeds and the like of the perfume plants, and the methods mainly comprise steam distillation, solvent extraction (including supercritical carbon dioxide extraction), cold pressing (for citrus fruits) and the like.
Due to the fact that the components are mixed, the spice is in a state of high impurity and low grade before processing, a certain solvent is added in a common impurity removing method to dissolve and remove the impurities, but the method is not only complex in operation, but also has great loss to raw materials, and production cost is increased.
Impurity in the raw materials generally has high volatility, and when heating to the uniform temperature, this part impurity composition can volatilize at first, and in the air of discharging, according to this law of volatilization temperature difference, the design need not add the solvent, and the raw materials heats under the piece state, realizes the equipment of edulcoration through gas flow, has better application prospect.
Disclosure of Invention
The invention aims to avoid the defects of the prior art and provides a continuous production device for removing a fragrant raw material by using gas and a using method thereof, thereby effectively solving the problems of the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
a continuous production device for removing impurities from fragrant raw materials by using gas comprises a raw material containing tank, a feed inlet, a discharge outlet, a gas inlet and a gas outlet; the top of the raw material containing tank is provided with a sealing cover; a stirring motor is arranged in the center of the top of the sealing cover; the bottom of the stirring motor is connected with the stirring shaft through a connecting flange; the stirring shaft is arranged inside the raw material containing tank and is of a hollow structure; a plurality of air holes are arranged on the stirring shaft; a stirring belt is arranged on the outer wall of the stirring shaft in a surrounding way; a bottom cover is arranged at the bottom of the raw material containing tank; the center of the bottom cover is provided with a gas inlet; a taper sleeve is fixedly arranged in the center of the inner part of the bottom cover; the taper sleeve is fixedly arranged on the peripheral edge of the gas inlet; the bottom of the stirring shaft is sleeved outside the taper sleeve; the bottom of the gas inlet is connected with a first gas inlet pipe; the outer wall of the raw material containing tank is provided with a heat-insulating layer; the seal cover is provided with a feed inlet and a gas outlet; the feed inlet and the gas outlet are arranged on two sides of the stirring motor; the bottom cover is provided with a discharge hole.
Further, the bottom of the stirring shaft is provided with stirring blades; the bottom of the stirring paddle is parallel to the inner plane of the bottom cover.
Further, a feeding channel and a discharging channel are arranged on the feeding port and the discharging port; the tail ends of the feeding channel and the discharging channel are provided with discharging channels.
Furthermore, an interlayer is arranged between the heat-insulating layer and the outer wall of the raw material containing tank, and a second gas inlet pipe is communicated with the interlayer; the end of the second gas inlet pipe is arranged outside the heat preservation layer.
Further, a conical material guiding section A and a conical material guiding section B are respectively arranged above and below the raw material containing tank; the diameter of the section of the upper part of the conical material guide section A is larger than that of the section of the lower part of the conical material guide section A; the diameter of the section of the upper part of the conical material guide section B is smaller than that of the section of the lower part of the conical material guide section B.
Further, a gas outlet pipe is arranged on the gas outlet; an air pump is arranged at the pipe orifice of the gas outlet pipe; the exhaust port of the air pump is connected with an exhaust gas treatment device.
Further, the waste gas treatment device sequentially comprises a dust filtering section, a spraying recovery section and a gas drying section; the outlet of the gas drying section is connected with a first gas inlet pipe and a second gas inlet pipe.
Further, a gas heating device is arranged between the outlet of the gas drying section and the first gas inlet pipe and between the outlet of the gas drying section and the second gas inlet pipe; the gas heating device comprises a spiral annular pipe and an electric heating net, and the electric heating net 31 is wrapped outside the spiral annular pipe.
The use method of the continuous production device comprises the following steps:
step 1) opening a second gas inlet pipe, and introducing high-temperature gas into the interlayer for preheating, wherein the temperature of the high-temperature gas is 100-390 ℃;
step 2) after preheating, feeding the raw material fragments into a raw material containing tank from a feeding port through a star-shaped discharger, starting a stirring motor, and stirring the raw material fragments in the raw material containing tank by a stirring belt along with the rotation of a stirring shaft;
step 3) opening a first gas inlet pipe, introducing hot gas flow into the stirring shaft through the first gas inlet pipe, and spraying the hot gas flow into the raw material containing tank through the gas holes in the stirring shaft; the raw material fragments in the raw material holding tank are stirred in a rolling way along with the dual actions of the hot gas flow and the stirring belt;
step 4), while stirring, the impurities can volatilize and disperse in the airflow; along with the gradual increase of the pressure in the raw material containing tank, the gas flow is discharged from the gas outlet along the gas outlet pipe, and the discharged gas contains impurity gas;
step 5), the impurity gas is respectively treated by a dust filtering section, a spraying recovery section and a gas drying section to obtain pure gas flow, and the pure gas flow enters the raw material containing tank and the interlayer again after being heated by a gas heating device;
step 6) repeating the steps repeatedly for a plurality of times until the impurity gases in the raw materials are basically removed;
and 7) collecting the raw materials coming out of the discharge channel.
The high-temperature gas is one or a combination of air, nitrogen and inert gas.
Compared with the prior art, the invention has at least the following beneficial effects:
1) the method removes volatile impurities in the spice in a gas exchange mode, has low cost and good impurity removal effect, and saves the production cost;
2) the waste gas of the invention can be recycled, which is environment-friendly, energy-saving and cost-saving.
3) The invention avoids adding solvent, but reduces the loss of raw materials by introducing gas;
according to the invention, high-temperature gas is introduced into the raw material containing tank, impurities in the raw materials are volatilized into gas in the stirring process, and then the impurities are taken out through gas circulation, so that the properties of the raw materials cannot be damaged in the whole impurity removing process, the raw materials cannot be lost, the gas can be recycled, and the production cost is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: a raw material holding tank 1; a feeding port 2; a discharge port 3; a gas inlet 4; a gas outlet 5; a cover 6; a stirring motor 7; a connecting flange 8; a stirring shaft 9; an air hole 10; a stirring belt 11; a bottom cover 12; a taper sleeve 13; a first gas inlet conduit 14; an insulating layer 15; a stirring blade 16; a feeding channel 17; a discharge channel 18; star discharger the star discharger 19; an interlayer 20; a conical guide section A21; a conical guide section B22; a gas outlet pipe 23; an air pump 24; an exhaust gas treatment device 25; a dust filtering section 26; a spray recovery section 27; a gas drying section 28; a gas heating device 29; a helical annular tube 30; an electric heating net 31; a first gas inlet line 32.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in the figure:
example 1:
a continuous production device for removing impurities of fragrant raw materials by using gas comprises a raw material containing tank 1, a feeding port 2, a discharging port 3, a gas inlet 4 and a gas outlet 5; the top of the raw material containing tank 1 is provided with a sealing cover 6; a stirring motor 7 is arranged in the center of the top of the sealing cover 6; the bottom of the stirring motor 7 is connected with a stirring shaft 9 through a connecting flange 8; the stirring shaft 9 is arranged inside the raw material containing tank 1 and is of a hollow structure; a plurality of air holes 10 are arranged on the stirring shaft 9; a stirring belt 11 is arranged on the outer wall of the stirring shaft 9 in a surrounding manner; the bottom of the raw material containing tank 1 is provided with a bottom cover 12; the center of the bottom cover 12 is provided with a gas inlet 4; a taper sleeve 13 is fixedly arranged in the center of the inner part of the bottom cover; the taper sleeve 13 is fixedly arranged on the peripheral edge of the gas inlet 4; the bottom of the stirring shaft 9 is sleeved outside the taper sleeve; the bottom of the gas inlet 4 is connected with a first gas inlet pipe 14; the outer wall of the raw material containing tank 1 is provided with a heat-insulating layer 15; the seal cover 6 is provided with a feed inlet 2 and a gas outlet 5; the feeding port 2 and the gas outlet 5 are arranged on two sides of the stirring motor 7; the bottom cover 12 is provided with a discharge hole 3.
Example 2:
on the basis of the embodiment 1, the bottom of the stirring shaft 9 of the stirring shaft is provided with stirring blades 16; the bottom of the stirring blade 16 is parallel to the inner plane of the bottom cover 12.
Example 3:
on the basis of the embodiment 1-2, a feeding channel 17 and a discharging channel 18 are arranged on the feeding port 2 and the discharging port 3; star-shaped dischargers 19 are arranged at the ends of the feed channel 17 and the discharge channel 18.
Example 4:
on the basis of the embodiment 1-3, an interlayer 20 is arranged between the heat-insulating layer 15 and the outer wall of the raw material containing tank 1, and a first gas inlet pipe 14 is communicated with the interlayer 20; the end of the first gas inlet pipe 14 is arranged outside the heat preservation layer 15.
Example 5:
on the basis of the embodiments 1 to 4, the material holding tank 1 is provided with a conical guide section a 21 and a conical guide section B22 above and below, respectively. (ii) a The diameter of the upper section of the conical material guide section A21 is larger than that of the lower section; the diameter of the upper section of the conical guide section B22 is smaller than that of the lower section.
Example 6:
on the basis of the embodiments 1-5, a gas outlet pipe 23 is arranged on the gas outlet 5; an air pump 24 is arranged at the pipe orifice of the gas outlet pipe 23; the exhaust port of the suction pump 24 is connected to an exhaust gas treatment device 25.
Example 7:
on the basis of the embodiments 1 to 6, the waste gas treatment device 25 sequentially comprises a dust filtering section 26, a spraying recovery section 27 and a gas drying section 28; the outlet of the gas drying section 28 is connected to a first gas inlet pipe 14 and a second gas inlet pipe 32.
Example 8:
on the basis of the embodiments 1 to 7, a gas heating device 29 is arranged between the outlet of the gas drying section 28 and the first gas inlet pipe 14 and the second gas inlet pipe 32; the gas heating device 29 comprises a spiral annular tube 30 and an electric heating net 31, and the electric heating net 31 is wrapped outside the spiral annular tube 30.
The operation process of the using method comprises the following steps: firstly, opening a second gas inlet pipe 32, introducing high-temperature gas into the interlayer 20 for preheating, then, entering raw material fragments into the raw material containing tank 1 from the feeding port 2 through the star discharger 19, starting the stirring motor 7, and stirring the raw material fragments in the raw material containing tank 1 by the stirring belt 11 along with the rotation of the stirring shaft 9; then, opening a first gas inlet pipe 14, introducing hot gas flow into the stirring shaft 9 through the first gas inlet pipe 14, and spraying the hot gas flow into the raw material containing tank 1 through the air holes 10 on the stirring shaft 9; the raw material fragments in the raw material containing tank 1 are stirred in a rolling way along with the dual actions of the hot gas flow and the stirring belt 11; while stirring, the impurities can volatilize and disperse in the airflow; along with the gradual increase of the pressure in the raw material holding tank 1, the air flow can be discharged from the air outlet 5 along the air outlet pipe 23, and the discharged air contains impurity gas; the impurity gas is respectively treated by a dust filtering section 26, a spraying recovery section 27 and a gas drying section 28 to obtain pure gas flow, and the pure gas flow enters the raw material containing tank 1 and the interlayer 20 again after being heated by a gas heating device 29; the above steps are repeated for a plurality of times until the impurity gas in the raw material is basically removed.
According to the invention, high-temperature gas is introduced into the raw material containing tank, impurities in the raw materials are volatilized into gas in the stirring process, and then the impurities are taken out through gas circulation, so that the properties of the raw materials cannot be damaged in the whole impurity removing process, the raw materials cannot be lost, the gas can be recycled, and the production cost is saved.
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 continuous production device for removing impurities from fragrant raw materials by using gas is characterized by comprising a raw material containing tank (1), a feeding port (2), a discharging port (3), a gas inlet (4) and a gas outlet (5); the top of the raw material containing tank (1) is provided with a sealing cover (6); a stirring motor (7) is arranged in the center of the top of the sealing cover (6); the bottom of the stirring motor (7) is connected with the stirring shaft (9) through a connecting flange (8); the stirring shaft (9) is arranged inside the raw material containing tank (1) and is of a hollow structure; a plurality of air holes (10) are arranged on the stirring shaft (9); a stirring belt (11) is arranged on the outer wall of the stirring shaft (9) in a surrounding way; the bottom of the raw material containing tank (1) is provided with a bottom cover (12); the center of the bottom cover (12) is provided with a gas inlet (4); a taper sleeve (13) is fixedly arranged in the center of the inner part of the bottom cover; the taper sleeve (13) is fixedly arranged on the peripheral edge of the gas inlet (4); the bottom of the stirring shaft (9) is sleeved outside the taper sleeve; the bottom of the gas inlet (4) is connected with a first gas inlet pipe (14); the outer wall of the raw material containing tank (1) is provided with an insulating layer (15); the seal cover (6) is provided with a feed inlet (2) and a gas outlet (5); the feeding port (2) and the gas outlet (5) are arranged on two sides of the stirring motor (7); the bottom cover (12) is provided with a discharge hole (3).
2. The continuous production apparatus for removing impurities of a fragrant raw material with a gas as set forth in claim 1, wherein the stirring shaft (9) is provided at the bottom thereof with stirring blades (16); the bottom of the stirring paddle (16) is parallel to the inner plane of the bottom cover (12), and the end part of the stirring paddle (16) is matched with the inner wall of the raw material containing tank (1) in a fitting manner.
3. The continuous production apparatus for removing a flavor-containing material with a gas as claimed in claim 1, wherein the feed port (2) and the discharge port (3) are provided with a feed passage (17) and a discharge passage (18); star-shaped dischargers (19) are arranged at the tail ends of the feeding channel (17) and the discharging channel (18).
4. The continuous production apparatus for removing impurities from a fragrant raw material with a gas as claimed in claim 1, wherein an interlayer (20) is provided between the heat-insulating layer (15) and the outer wall of the raw material-holding tank (1), and a second gas inlet pipe (32) is provided in the interlayer (20) in communication therewith; the tail end of the second gas inlet pipe (32) is arranged outside the heat-insulating layer (15).
5. The continuous production apparatus for removing a flavor-containing material with gas as claimed in claim 1, wherein the material holding tank (1) is provided above and below with a tapered guide section a (21) and a tapered guide section B (22), respectively; the diameter of the section of the upper part of the conical material guide section A (21) is larger than that of the section of the lower part; the diameter of the upper section of the conical material guide section B (22) is smaller than that of the lower section.
6. The continuous production apparatus for removing impurities from a fragrant raw material with a gas as set forth in claim 1, wherein said gas outlet (5) is provided with a gas outlet pipe (23); an air pump (24) is arranged at the pipe orifice of the gas outlet pipe (23); an exhaust port of the suction pump (24) is connected to an exhaust gas treatment device (25).
7. The continuous production apparatus for removing impurities from a fragrant raw material with a gas as claimed in claim 6, wherein said exhaust gas treatment device (25) comprises a dust filtration section (26), a spray recovery section (27) and a gas drying section (28) in this order; the outlet of the gas drying section (28) is connected with a first gas inlet pipe (14) and a second gas inlet pipe (32).
8. A continuous production apparatus for removing impurities from a fragrant raw material with a gas as set forth in claim 7, wherein a gas heating device (29) is provided between the outlet of the gas drying section (28) and the first gas inlet pipe (14) and the second gas inlet pipe (32); the gas heating device (29) comprises a spiral annular pipe (30) and an electric heating net (31), and the electric heating net (31) is wrapped outside the spiral annular pipe (30).
9. Use of a continuous production unit according to claim 8, characterized in that it comprises the following steps:
step 1) opening a second gas inlet pipe (32) at first, and introducing high-temperature gas into the interlayer (20) for preheating, wherein the temperature of the high-temperature gas is 100-390 ℃;
step 2), after preheating, feeding raw material powder into the raw material containing tank (1) from the feeding port (2) through a star-shaped discharger (19), starting a stirring motor (7), and stirring the powder raw material in the raw material containing tank (1) by a stirring belt (11) along with the rotation of a stirring shaft (9);
step 3), opening a first gas inlet pipe (14), introducing hot gas flow into the stirring shaft (9) through the first gas inlet pipe (14), and spraying the hot gas flow into the raw material containing tank (1) through the air holes (10) in the stirring shaft (9); the powder in the raw material containing tank (1) is stirred in a rolling way along with the dual actions of hot gas flow and the stirring belt (11);
step 4), while stirring, the impurities can volatilize and disperse in the airflow; along with the gradual increase of the pressure in the raw material containing tank (1), the gas flow is discharged from the gas outlet (5) along the gas outlet pipe (23), and the discharged gas contains impurity gas;
step 5), the impurity gas is respectively treated by a dust filtering section (26), a spraying recovery section (27) and a gas drying section (28) to obtain pure gas flow, and the pure gas flow enters the raw material containing tank (1) and the interlayer (20) again after being heated by a gas heating device (29);
step 6) repeating the steps repeatedly for a plurality of times until the impurity gases in the raw materials are basically removed;
and 7) collecting the raw material coming out of the discharge channel (18).
10. The use method of claim 9, wherein the high temperature gas is one or more of air, nitrogen, and inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442978.9A CN111454776B (en) | 2020-05-22 | 2020-05-22 | Continuous production device for removing impurities of perfume raw materials by using gas and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442978.9A CN111454776B (en) | 2020-05-22 | 2020-05-22 | Continuous production device for removing impurities of perfume raw materials by using gas and application method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111454776A true CN111454776A (en) | 2020-07-28 |
| CN111454776B CN111454776B (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010442978.9A Active CN111454776B (en) | 2020-05-22 | 2020-05-22 | Continuous production device for removing impurities of perfume raw materials by using gas and application method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9418024U1 (en) * | 1994-11-10 | 1994-12-22 | Umwelt Technics Nord Gmbh | Device for separating volatile components from a base material |
| JP2002143834A (en) * | 2000-11-10 | 2002-05-21 | Hisao Kojima | Device for removing impurity in liquid |
| CN104689748A (en) * | 2015-02-12 | 2015-06-10 | 浙江东立绿源科技股份有限公司 | Stirrer for feed production |
| CN205164160U (en) * | 2015-10-28 | 2016-04-20 | 昆明华电消防材料工程有限公司 | Fire retardant peculiar smell remove device |
| CN106732230A (en) * | 2016-12-09 | 2017-05-31 | 梅新星 | A kind of chemical mixing unit with knot screen |
| CN209997413U (en) * | 2019-06-04 | 2020-01-31 | 梁樱妮 | volatile organic compounds processing device |
| CN212293481U (en) * | 2020-05-22 | 2021-01-05 | 云南养瑞科技集团有限公司 | Continuous production device for removing impurities in fragrant raw materials by using gas |
-
2020
- 2020-05-22 CN CN202010442978.9A patent/CN111454776B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9418024U1 (en) * | 1994-11-10 | 1994-12-22 | Umwelt Technics Nord Gmbh | Device for separating volatile components from a base material |
| JP2002143834A (en) * | 2000-11-10 | 2002-05-21 | Hisao Kojima | Device for removing impurity in liquid |
| CN104689748A (en) * | 2015-02-12 | 2015-06-10 | 浙江东立绿源科技股份有限公司 | Stirrer for feed production |
| CN205164160U (en) * | 2015-10-28 | 2016-04-20 | 昆明华电消防材料工程有限公司 | Fire retardant peculiar smell remove device |
| CN106732230A (en) * | 2016-12-09 | 2017-05-31 | 梅新星 | A kind of chemical mixing unit with knot screen |
| CN209997413U (en) * | 2019-06-04 | 2020-01-31 | 梁樱妮 | volatile organic compounds processing device |
| CN212293481U (en) * | 2020-05-22 | 2021-01-05 | 云南养瑞科技集团有限公司 | Continuous production device for removing impurities in fragrant raw materials by using gas |
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| CN111454776B (en) | 2023-09-01 |
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