CN111603989A - Soil restoration compounding device that environmental protection was administered - Google Patents
Soil restoration compounding device that environmental protection was administered Download PDFInfo
- Publication number
- CN111603989A CN111603989A CN202010486749.7A CN202010486749A CN111603989A CN 111603989 A CN111603989 A CN 111603989A CN 202010486749 A CN202010486749 A CN 202010486749A CN 111603989 A CN111603989 A CN 111603989A
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- fixed
- soil
- spherical shell
- sleeve
- driving
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- 239000002689 soil Substances 0.000 title claims abstract description 63
- 230000007613 environmental effect Effects 0.000 title claims abstract description 8
- 238000013329 compounding Methods 0.000 title description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 238000003756 stirring Methods 0.000 claims abstract description 31
- 238000005067 remediation Methods 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 239000003795 chemical substances by application Substances 0.000 abstract description 8
- 239000006185 dispersion Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/10—Mixers with shaking, oscillating, or vibrating mechanisms with a mixing receptacle rotating alternately in opposite directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/44—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement
- B01F31/441—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement performing a rectilinear reciprocating movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a mixing device for soil remediation for environmental protection treatment, which relates to the technical field of soil remediation and comprises a fixed frame, wherein a sliding sleeve is slidably sleeved on a horizontal rod, the bottom of the sliding sleeve is provided with a dispersing mechanism for stirring soil, and the fixed frame is provided with a driving mechanism for driving the sliding sleeve to transversely slide; according to the invention, the reversing mechanism can drive the spherical shell and the pull rod to rotate reversely, namely the pull rod can drive the rotation direction of the dispersing mechanism to be always opposite to the rotation direction of the spherical shell, the soil in the spherical shell is stirred fully and thoroughly, the driving mechanism can drive the sliding sleeve to slide transversely, the sliding sleeve drives the guide sleeve plate and the scraper to move transversely, the scraper can scrape the inner wall of the spherical shell, the transverse stirring effect of the soil is promoted, and meanwhile, the stirring blades I and II stir the soil repeatedly, so that the full mixing of the soil and the repairing agent is greatly promoted, and the soil repairing effect is effectively promoted.
Description
Technical Field
The invention relates to the technical field of soil remediation, in particular to a mixing device for soil remediation, which is used for environmental protection treatment.
Background
The soil remediation is a technical measure for restoring the normal function of polluted soil, the existing soil remediation technology reaches more than one hundred in the soil remediation industry, the common technology is more than ten, the technology can be roughly divided into three methods of physics, chemistry and biology, and a plurality of countries in the world, particularly developed countries, make and develop polluted soil treatment and remediation plans, so that a new soil remediation industry is formed.
Patent No. CN207996887U discloses a soil treatment pretreatment device, which comprises a crushing cavity, a sieve plate and a lifting cavity; the upper end of the crushing cavity is provided with a feed hopper, the right side of the feed hopper is provided with a rotating shaft A, the rotating shaft A penetrates through the upper end of the crushing cavity and is rotatably connected with the crushing cavity, two groups of cutting knives are symmetrically arranged on the rotating shaft A, and rotating rods are arranged on the inner sides of the cutting knives; a lifting cavity is arranged on the right side of the crushing cavity; smash the intracavity side and still slide and be provided with the sieve, the lower extreme fixed mounting of sieve has the bracing piece, and the lower extreme of bracing piece is provided with the spout, and sliding connection has the slider in the spout. Although the device can be used for carrying out shredding to soil, the abundant degree of dispersion of soil is lower, is unfavorable for soil and the intensive mixing of repairing agent, leads to soil improvement efficiency lower, for this reason, provides a compounding device for soil restoration of environmental protection improvement now to solve above-mentioned technical problem.
Disclosure of Invention
The invention aims to provide a mixing device for soil remediation, which is used for environment-friendly treatment and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a compounding device for soil remediation that environmental protection was administered, includes the mount, rotates on the mount and installs the spherical shell, and the spherical shell lateral wall is fixed with to slide to inlay and establishes the guide block at the mount inner wall, is fixed with servo motor on the mount, and the last drive of servo motor is connected with reversing mechanism, and the last drive of reversing mechanism is connected with the rotatory sleeve pipe with the coaxial fixed of spherical shell, the rotation axis of vertical extension to in the spherical shell is installed to the rotatory sleeve pipe internal rotation, the rotation axis is improved level and is fixed with the horizon bar, and the horizon bar slip cover is equipped with the sliding sleeve, and the sliding sleeve bottom is equipped with and is used for carrying out the dispersion mechanism of stirring to soil, be.
As a modified scheme of the invention: the reversing mechanism comprises a driving shaft which is rotatably installed on the fixing frame, a belt pulley mechanism is in transmission connection with the driving shaft and the rotating shaft, a driven gear is fixedly sleeved on the rotating sleeve, and a driving gear which is meshed with the driven gear and connected with the driven gear is fixedly sleeved on the driving shaft.
As a modified scheme of the invention: the reversing mechanism further comprises a bevel gear I and a bevel gear II which are sleeved and fixed on the driving shaft, and an output shaft of the servo motor is in driving connection with an incomplete bevel gear which is alternately meshed with the bevel gear I and the bevel gear II.
As a modified scheme of the invention: the dispersing mechanism comprises a guide sleeve plate vertically fixed at the bottom of the sliding sleeve, a scraper abutted against the inner wall of the spherical shell is vertically and slidably mounted in the guide sleeve plate, and a vertical spring is fixed between the scraper and the guide sleeve plate.
As a modified scheme of the invention: the side wall of the guide sleeve plate is fixed with a stirring blade I, the side wall of the guide sleeve plate penetrates through the guide groove, and the stirring blade II fixed on the scraper blade is arranged in the guide groove in a sliding and penetrating mode.
As a modified scheme of the invention: the driving mechanism comprises an internal thread sleeve fixed at the top in the fixing frame, the internal thread sleeve is connected with an internal thread in a penetrating mode and provided with an external thread sleeve sleeved on the rotating shaft in a sleeved mode in a sliding mode, and a pull rod is hinged between the external thread sleeve and the sliding sleeve.
As a modified scheme of the invention: the end of the horizontal rod is fixed with a fixed plate, and a horizontal spring sleeved on the horizontal rod is fixed between the fixed plate and the sliding sleeve.
As a modified scheme of the invention: the bottom is vertically fixed with a promotion section of thick bamboo in the spherical shell, and discharge gate and feed inlet have been seted up respectively to promotion section of thick bamboo upper and lower lateral wall, the rotation axis fixed surface has the helical blade who is located a promotion section of thick bamboo.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the reversing mechanism can drive the spherical shell and the pull rod to rotate reversely, namely the pull rod can drive the rotation direction of the dispersing mechanism to be always opposite to the rotation direction of the spherical shell, the soil in the spherical shell is stirred fully and thoroughly, the driving mechanism can drive the sliding sleeve to slide transversely, the sliding sleeve drives the guide sleeve plate and the scraper to move transversely, the scraper can scrape the inner wall of the spherical shell, the transverse stirring effect of the soil is promoted, and meanwhile, the stirring blades I and II stir the soil repeatedly, so that the full mixing of the soil and the repairing agent is greatly promoted, and the soil repairing effect is effectively promoted.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is a partial perspective view of the present invention.
In the figure: 1-a fixed frame, 2-a rotating shaft, 3-an internal thread sleeve, 4-an external thread sleeve, 5-a pull rod, 6-a guide block, 7-a spherical shell, 8-a helical blade, 9-a feed inlet, 10-a rotating sleeve, 11-a driven gear, 12-a belt pulley mechanism, 13-a driving gear, 14-a lifting cylinder and 15-a discharge port, 16-servo motor, 17-horizontal rod, 18-stirring blade I, 19-stirring blade II, 20-scraper, 21-guide sleeve plate, 22-vertical spring, 23-fixing plate, 24-horizontal spring, 25-sliding sleeve, 26-bevel gear II, 27-driving shaft, 28-bevel gear II, 29-incomplete bevel gear and 30-guide groove.
Detailed Description
The technical scheme of the patent is further described in detail by combining the following specific embodiments:
example 1
Referring to fig. 1-4, a mixing device for soil remediation for environmental protection treatment comprises a fixed frame 1, a spherical shell 7 is rotatably mounted on the fixed frame 1, a guide block 6 which is slidably embedded in the inner wall of the fixed frame 1 is fixed on the side wall of the spherical shell 7, a servo motor 16 is fixed on the fixed frame 1, a reversing mechanism is connected to the servo motor 16 in a driving manner, a rotary sleeve 10 which is coaxially fixed with the spherical shell 7 is connected to the reversing mechanism in a driving manner, a rotary shaft 2 which vertically extends into the spherical shell 7 is rotatably mounted in the rotary sleeve 10, a horizontal rod 17 is horizontally fixed on the rotary shaft 2, a sliding sleeve 25 is slidably sleeved on the horizontal rod 17, a dispersing mechanism for stirring soil is arranged at the bottom of the sliding sleeve 25, and a driving mechanism for driving the sliding sleeve 25 to transversely slide is arranged on.
Be used for placing the soil that will carry out repairing in the spherical shell 7 that sets up in this device, to adding the repairing agent in the spherical shell 7, can drive spherical shell 7 and dispersion mechanism through the reversing mechanism who sets up and rotate, realize the stirring mixed effect to soil and repairing agent, promote the quick restoration of soil.
Specifically, the reversing mechanism of the device comprises a driving shaft 27 rotatably mounted on a fixed frame 1, a belt pulley mechanism 12 is in transmission connection with the driving shaft 27 and a rotating shaft 2, a driven gear 11 is fixedly sleeved on a rotating sleeve 10, a driving gear 13 in meshed connection with the driven gear 11 is fixedly sleeved on the driving shaft 27, a bevel gear I26 and a bevel gear II28 are fixedly sleeved on the driving shaft 27, and an incomplete bevel gear 29 alternately meshed with a bevel gear I26 and a bevel gear II28 is in driving connection with an output shaft of a servo motor 16.
The servo motor 16 drives the incomplete bevel gear 29 to rotate, the incomplete bevel gear 29 is alternately meshed with the bevel gear I26 and the bevel gear II28, and at the moment, the driving shaft 27 rotates clockwise and anticlockwise alternately, so that the clockwise and anticlockwise alternate rotation of the dispersing mechanism is realized, and the effect of fully stirring the soil in the spherical shell 7 is promoted.
Meanwhile, in the rotating process of the driving shaft 27, the driving shaft 27 drives the rotating shaft 2 to rotate through the belt pulley mechanism 12, meanwhile, the driving shaft 27 drives the driving gear 13 to rotate, the driving gear 13 drives the driven gear 11 meshed with the driving gear to rotate, the rotating sleeve 10 drives the spherical shell 7 to rotate, the rotating directions of the spherical shell 7 and the dispersing mechanism are opposite all the time, the stirring effect of soil is greatly promoted, and the soil repairing effect is remarkably improved.
Example 2
On embodiment 1's basis, in addition, this device still is provided with dispersion mechanism, including vertical fixing at the uide bushing board 21 of sliding sleeve 25 bottom, vertical slidable mounting has the scraper blade 20 with the butt of spherical shell 7 inner wall in the uide bushing board 21, be fixed with vertical spring 22 between scraper blade 20 and the uide bushing board 21, the uide bushing board 21 lateral wall is fixed with stirring leaf I18, and the uide bushing board 21 lateral wall runs through and has seted up guide way 30, and it wears to be equipped with the stirring leaf II19 of fixing on scraper blade 20 to slide in the guide way 30.
Through the setting, the rotatory in-process of rotation axis 2, rotation axis 2 drive pull rod 5 drive horizontal bar 17 rotatory, and sliding sleeve 25 on the horizontal bar 17 drives direction lagging 21 rotatory together with scraper blade 20, and at this moment, stirring leaf I18 on the direction lagging 21 and the stirring leaf II19 on the scraper blade 20 are rotatory, realize stirring the soil in the spherical shell 7 and realize the dispersion.
Further, the actuating mechanism of this device is including fixing the internal thread sleeve pipe 3 at the top in mount 1, and 3 internal thread connections of internal thread sleeve pipe wear to be equipped with the external screw thread sleeve pipe 4 that the slip cover was established on rotation axis 2, it has pull rod 5 to articulate between external screw thread sleeve pipe 4 and the sliding sleeve 25, and the horizontal pole 17 end fixing has fixed plate 23, is fixed with the horizontal spring 24 that the cover was established on horizontal pole 17 between fixed plate 23 and the sliding sleeve 25.
In-process at rotation axis 2 positive reverse rotation in turn, rotation axis 2 drives the positive reverse rotation in turn of external screw thread sleeve pipe 4, the vertical reciprocal lift of the relative internal thread sleeve pipe 3 of external screw thread sleeve pipe 4 this moment, pull rod 5 can drive sliding sleeve 25 horizontal reciprocating sliding relative to horizontal pole 17 promptly, guide sleeve board 21 can horizontal reciprocating motion this moment, under vertical spring 22's elastic action, scraper blade 20 lower extreme scrapes the inner wall of spherical shell 7, stirring leaf II19 is vertical along guide way 30 simultaneously, the abundant stirring of soil and remediation agent in the spherical shell 7 has been realized, the abundant restoration of soil has been promoted.
In addition, a lifting cylinder 14 is vertically fixed at the bottom in the spherical shell 7, a discharge port 15 and a feed port 9 are respectively formed in the upper side wall and the lower side wall of the lifting cylinder 14, a spiral blade 8 located in the lifting cylinder 14 is fixed on the surface of the rotating shaft 2, when the rotating shaft 2 rotates forwards, the rotating shaft 2 drives the spiral blade 8 to rotate forwards, soil in the spherical shell 7 enters the lifting cylinder 14 from the feed port 9, the spiral blade 8 rotates upwards to lift the soil, and finally the soil circulates to the interior of the spherical shell 7 from the discharge port 15, so that the further stirring effect of the soil is realized, the soil and a repairing agent are fully contacted and mixed, and the soil repairing effect is remarkably improved.
In conclusion, the reversing mechanism can drive the spherical shell 7 and the pull rod 5 to rotate reversely, namely the pull rod 5 can drive the dispersing mechanism to rotate in the direction opposite to the rotation direction of the spherical shell 7 all the time, the soil in the spherical shell 7 is stirred sufficiently and thoroughly, the driving mechanism can drive the sliding sleeve 25 to slide transversely, at the moment, the sliding sleeve 25 drives the guide sleeve plate 21 and the scraper 20 to move transversely, the scraper 20 can scrape the inner wall of the spherical shell 7, the transverse stirring effect of the soil is promoted, meanwhile, the stirring blade I18 and the stirring blade II19 stir the soil repeatedly, the sufficient mixing of the soil and the repairing agent is greatly promoted, and the soil repairing effect is effectively promoted.
It should be noted that, although the present specification describes embodiments, each embodiment does not include only a single technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art, and the above-mentioned embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the claims of the technical solutions. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these changes and substitutions belong to the protection scope of the present invention. The protection scope of this technical solution patent should be subject to the appended claims.
Claims (8)
1. A mixing device for soil restoration for environmental protection treatment comprises a fixed frame (1), a spherical shell (7) is rotatably arranged on the fixed frame (1), a guide block (6) which is embedded in the inner wall of the fixed frame (1) in a sliding way is fixed on the side wall of the spherical shell (7), it is characterized in that a servo motor (16) is fixed on the fixed mount (1), a reversing mechanism is connected on the servo motor (16) in a driving way, a rotary sleeve (10) which is coaxially fixed with the spherical shell (7) is connected on the reversing mechanism in a driving way, the rotating sleeve (10) is internally and rotatably provided with a rotating shaft (2) which vertically extends into the spherical shell (7), a horizontal rod (17) is horizontally fixed on the rotating shaft (2), a sliding sleeve (25) is sleeved on the horizontal rod (17) in a sliding manner, a dispersing mechanism used for stirring soil is arranged at the bottom of the sliding sleeve (25), and the fixed frame (1) is provided with a driving mechanism for driving the sliding sleeve (25) to transversely slide.
2. The mixing device for soil remediation according to claim 1, wherein the reversing mechanism comprises a driving shaft (27) rotatably mounted on the fixing frame (1), the driving shaft (27) and the rotating shaft (2) are in transmission connection with a belt pulley mechanism (12), the rotating sleeve (10) is sleeved with a driven gear (11), and the driving shaft (27) is sleeved with a driving gear (13) which is in meshed connection with the driven gear (11).
3. The mixing device for soil remediation according to claim 2, wherein the reversing mechanism further comprises a bevel gear I (26) and a bevel gear II (28) which are sleeved and fixed on the driving shaft (27), and an output shaft of the servo motor (16) is in driving connection with an incomplete bevel gear (29) which is alternately meshed with the bevel gear I (26) and the bevel gear II (28).
4. The mixing device for soil remediation according to claim 1, wherein the dispersing mechanism comprises a guide sleeve plate (21) vertically fixed at the bottom of the sliding sleeve (25), a scraper (20) abutting against the inner wall of the spherical shell (7) is vertically and slidably mounted in the guide sleeve plate (21), and a vertical spring (22) is fixed between the scraper (20) and the guide sleeve plate (21).
5. The mixing device for soil remediation according to claim 4, wherein the stirring blades I (18) are fixed to the side wall of the guide sleeve plate (21), the guide groove (30) is formed in the side wall of the guide sleeve plate (21) in a penetrating manner, and the stirring blades II (19) fixed to the scraper (20) are slidably arranged in the guide groove (30) in a penetrating manner.
6. The mixing device for soil remediation according to claim 1, wherein the driving mechanism comprises an internal thread sleeve (3) fixed to the top of the inside of the fixing frame (1), an external thread sleeve (4) slidably sleeved on the rotating shaft (2) is arranged in the internal thread of the internal thread sleeve (3) in a penetrating manner, and a pull rod (5) is hinged between the external thread sleeve (4) and the sliding sleeve (25).
7. The mixing device for soil remediation according to claim 1, wherein a fixing plate (23) is fixed to the end of the horizontal rod (17), and a horizontal spring (24) sleeved on the horizontal rod (17) is fixed between the fixing plate (23) and the sliding sleeve (25).
8. The mixing device for soil remediation according to claim 1, wherein a lifting cylinder (14) is vertically fixed to the bottom of the spherical shell (7), a discharge port (15) and a feed port (9) are respectively formed in the upper and lower side walls of the lifting cylinder (14), and a helical blade (8) located in the lifting cylinder (14) is fixed to the surface of the rotating shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010486749.7A CN111603989A (en) | 2020-06-01 | 2020-06-01 | Soil restoration compounding device that environmental protection was administered |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010486749.7A CN111603989A (en) | 2020-06-01 | 2020-06-01 | Soil restoration compounding device that environmental protection was administered |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111603989A true CN111603989A (en) | 2020-09-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010486749.7A Withdrawn CN111603989A (en) | 2020-06-01 | 2020-06-01 | Soil restoration compounding device that environmental protection was administered |
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| Country | Link |
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| CN (1) | CN111603989A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112191681A (en) * | 2020-10-19 | 2021-01-08 | 覃报 | A high-efficient purifier of soil for heavy metal pollution |
| CN112452190A (en) * | 2020-11-20 | 2021-03-09 | 河南城建学院 | Mixing mechanism and ecological soil remediation device for administering |
| CN112808098A (en) * | 2021-01-18 | 2021-05-18 | 翟振铎 | Sewage treatment equipment suitable for multi-household domestic sewage treatment |
| CN112915850A (en) * | 2021-01-14 | 2021-06-08 | 王蕊 | Method for emulsifying alkyd resin coating |
| CN113119422A (en) * | 2021-04-28 | 2021-07-16 | 广东正利兴实业有限公司 | Injection molding machine is used in production of polymer degradable tableware |
| CN114632632A (en) * | 2022-05-20 | 2022-06-17 | 深圳市三盛环保科技有限公司 | Oily for waste centrifugal processing device |
-
2020
- 2020-06-01 CN CN202010486749.7A patent/CN111603989A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112191681A (en) * | 2020-10-19 | 2021-01-08 | 覃报 | A high-efficient purifier of soil for heavy metal pollution |
| CN112452190A (en) * | 2020-11-20 | 2021-03-09 | 河南城建学院 | Mixing mechanism and ecological soil remediation device for administering |
| CN112915850A (en) * | 2021-01-14 | 2021-06-08 | 王蕊 | Method for emulsifying alkyd resin coating |
| CN112808098A (en) * | 2021-01-18 | 2021-05-18 | 翟振铎 | Sewage treatment equipment suitable for multi-household domestic sewage treatment |
| CN113119422A (en) * | 2021-04-28 | 2021-07-16 | 广东正利兴实业有限公司 | Injection molding machine is used in production of polymer degradable tableware |
| CN114632632A (en) * | 2022-05-20 | 2022-06-17 | 深圳市三盛环保科技有限公司 | Oily for waste centrifugal processing device |
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Application publication date: 20200901 |