CN112718245A - Dust suppression device for production of compound vitamin feed and processing method thereof - Google Patents
Dust suppression device for production of compound vitamin feed and processing method thereof Download PDFInfo
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- CN112718245A CN112718245A CN202110059188.7A CN202110059188A CN112718245A CN 112718245 A CN112718245 A CN 112718245A CN 202110059188 A CN202110059188 A CN 202110059188A CN 112718245 A CN112718245 A CN 112718245A
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- cylinder
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- upper positioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
- B03C3/06—Plant or installations having external electricity supply dry type characterised by presence of stationary tube electrodes
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/49—Collecting-electrodes tubular
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Electron Sources, Ion Sources (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a dust suppression device for compound vitamin feed production and a processing method thereof, wherein the dust suppression device comprises a support bracket, an upper positioning cylinder, a lower floating cylinder, a vertical rod, a floating column and a floating driving mechanism; the invention changes the integrated structure of the traditional electrified cylinder body, designs a structure that the lower floating cylinder stretches and floats at the lower end of the upper positioning cylinder, drives the lower floating cylinder by additionally arranging the floating driving mechanism, rotates the driving screw rod when the concentration of feed dust in the air is higher, drives the floating internal thread cylinder to move downwards, and further drives the lower floating cylinder to move downwards, thus the longitudinal length of the upper positioning cylinder and the lower floating cylinder is prolonged, the adsorption area of the upper positioning cylinder and the lower floating cylinder is increased, the adjustment is realized, and the use is flexible.
Description
Technical Field
The invention relates to a dust suppression device for compound vitamin feed production and a processing method thereof.
Background
In the production of the compound vitamin feed, the blocky compound vitamin feed needs to be crushed into the powdery compound vitamin feed, and due to the action of other factors such as machinery and the like, part of the compound vitamin feed powder can enter the air, so that the dust content in the air is increased, the dust content in the air can influence the body health of workshop operators, and simultaneously, the waste of raw materials can be caused, and the economic benefit is reduced; in order to avoid the above problems, the prior art generally adopts a device with electrostatic action to remove the feed dust and adsorb the feed dust on the inner wall of the charging barrel, but some environmental feed powder has high concentration and needs to increase the adsorption capacity of the charging barrel, and the existing charging barrel can not adjust the adsorption area according to the adsorption capacity and is not flexible to use.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: provides a dust suppression device for producing a compound vitamin feed and a processing method thereof, wherein the dust suppression device can adjust the adsorption area according to the concentration of feed dust particles.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a dust suppression device for compound vitamin feed production comprises a support bracket, an upper positioning barrel, a lower floating barrel, a vertical rod, a floating column and a floating driving mechanism; the upper positioning cylinder and the lower floating cylinder are both of structures which are hollow inside, closed at the periphery and opened at two ends; a support bracket is respectively arranged below the two sides of the upper positioning cylinder; the outer part of one side of the upper positioning cylinder is connected with the positive electrode of a power supply through a guide rod; the lower floating cylinder is arranged below the upper positioning cylinder; the periphery of the lower end of the upper positioning cylinder is provided with an annular insertion groove; the periphery of the upper end of the lower floating cylinder is provided with an annular plug connector; the lower floating cylinder is inserted into the annular insertion groove around the lower end of the upper positioning cylinder in a vertical sliding manner through the annular insertion piece; the outer parts of two sides of the lower floating cylinder are respectively provided with a sliding clamping and connecting rod; the lower floating cylinder is vertically and slidably clamped on the inner side of the supporting bracket through the sliding clamping and connecting rods outside the two sides; a floating column is arranged in the middle of the inner part of the lower floating cylinder; the upper end of the floating column is internally provided with a plug hole; the vertical rod is inserted into the middle of the upper end of the upper positioning cylinder and extends into the inserting hole in the upper end of the floating column; the upper end of the vertical rod extends to the outside of the upper positioning cylinder and is connected with the negative electrode of the power supply through the guide rod; the floating driving mechanism is arranged below the sliding clamping and connecting rod on one side of the lower floating cylinder; the floating driving mechanism drives the lower floating cylinder to slide up and down; the floating driving mechanism comprises a floating internal thread cylinder, a driving screw and a positioning block; the floating internal thread cylinder is arranged on the lower side of the sliding clamping and connecting rod; the internal thread at the lower end of the floating internal thread cylinder is rotationally connected with a driving screw; a positioning block is fixedly arranged below the inner side of the supporting bracket; the lower end of the driving screw is rotatably clamped and connected on the positioning block in a penetrating manner; an air inlet pipe is arranged on the supporting bracket; the air inlet pipe is communicated with one side of the lower end of the lower floating cylinder; an exhaust pipe is arranged on one side of the upper end of the upper positioning cylinder; and the exhaust pipe is provided with a draught fan.
Furthermore, telescopic corrugated pipes are arranged on the outer sides of the periphery of the upper positioning cylinder and the periphery of the lower floating cylinder.
Furthermore, a sliding clamping groove which is longitudinally distributed is respectively arranged in the supporting bracket; the lower floating cylinder is connected to the sliding clamping groove on the inner side of the supporting bracket in a vertically sliding clamping mode through the sliding clamping connecting rods outside the two sides.
Furthermore, the two sides of the floating column are connected to the inner side wall of the lower floating cylinder through connecting insulating rods.
Further, an insulating sealing cover is arranged at the upper end of the upper positioning cylinder; the vertical rod is fixedly connected in the middle of the insulating sealing cover in a penetrating manner; the periphery of the insulating closed cover is fixed on the periphery of the upper end of the upper positioning cylinder through screws.
Further, the lower end of the lower floating cylinder is provided with an ash discharge pipe; a vent pipe is arranged on one side of the ash discharge pipe; the air pipe is communicated with the air inlet pipe through a telescopic pipe.
A processing method of a compound vitamin feed comprises the following steps that when the feed dust concentration in the air is high, a driving screw is rotated to drive a floating internal thread cylinder to move downwards and further drive a lower floating cylinder to move downwards, so that the longitudinal lengths of an upper positioning cylinder and the lower floating cylinder are prolonged, and the adsorption areas of the upper positioning cylinder and the lower floating cylinder are increased; then the power is turned on, the upper positioning cylinder is connected with the positive electrode of the power supply, so that the upper positioning cylinder and the lower floating cylinder are both positively charged, the vertical rod is connected with the negative electrode of the power supply, the vertical rod and the floating column are both negatively charged, the induced fan on the exhaust pipe is turned on, feed dust is sucked into the lower floating cylinder from the air inlet pipe, the feed dust particles are negatively charged after contacting the vertical rod and the floating column, then the feed dust particles with negative charges can be respectively sucked onto the inner walls of the upper positioning cylinder with positive charges and the lower floating cylinder, dust suppression is realized, and air for removing the feed dust particles is discharged from the exhaust pipe.
The invention has the advantages of
The invention changes the integrated structure of the traditional electrified cylinder body, designs a structure that the lower floating cylinder stretches and floats at the lower end of the upper positioning cylinder, drives the lower floating cylinder by additionally arranging the floating driving mechanism, rotates the driving screw rod when the concentration of feed dust in the air is higher, drives the floating internal thread cylinder to move downwards, and further drives the lower floating cylinder to move downwards, thus the longitudinal length of the upper positioning cylinder and the lower floating cylinder is prolonged, the adsorption area of the upper positioning cylinder and the lower floating cylinder is increased, the adjustment is realized, and the use is flexible.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a dust suppression device for the production of compound vitamin feed comprises a support bracket 1, an upper positioning barrel 2, a lower floating barrel 6, a vertical rod 3, a floating column 4 and a floating driving mechanism 5; the upper positioning cylinder 2 and the lower floating cylinder 6 are both of a structure which is hollow inside, closed at the periphery and opened at two ends; a support bracket 1 is respectively arranged below the two sides of the upper positioning cylinder 2; the outer part of one side of the upper positioning cylinder 2 is connected with the positive electrode of a power supply through a guide rod 8; the lower floating cylinder 6 is arranged below the upper positioning cylinder 2; the periphery of the lower end of the upper positioning cylinder 2 is provided with an annular splicing groove 21; an annular plug connector 61 is arranged on the periphery of the upper end of the lower floating cylinder 6; the lower floating barrel 6 is inserted into the annular insertion groove 21 around the lower end of the upper positioning barrel 2 in a vertical sliding manner through the annular insertion piece 61; the outer parts of the two sides of the lower floating cylinder 6 are respectively provided with a sliding clamping and connecting rod 62; the lower floating cylinder 6 is vertically and slidably clamped on the inner side of the support bracket 1 through the sliding clamping and connecting rods 62 outside the two sides; the middle inside the lower floating cylinder 6 is provided with a floating column 4; the upper end of the floating column 4 is internally provided with a plug-in hole 41; the vertical rod 3 is inserted into the middle of the upper end of the upper positioning cylinder 2 and extends into the insertion hole 41 in the upper end of the floating column 4; the vertical rod 3 is fixed at the upper end of the upper positioning cylinder 2, and the upper end of the vertical rod 3 extends to the outside of the upper positioning cylinder 2 and is connected with the negative electrode of the power supply through a guide rod 8; the floating driving mechanism 5 is arranged below the sliding clamping rod 62 at one side of the lower floating cylinder 6; the floating driving mechanism 5 drives the lower floating cylinder 6 to slide up and down; the floating driving mechanism 5 comprises a floating internal thread cylinder 51, a driving screw 52 and a positioning block 53; the floating internal thread cylinder 51 is arranged at the lower side of the sliding clamping rod 62; the lower end of the floating internal thread cylinder 51 is in threaded rotary connection with a driving screw 52; a positioning block 53 is fixedly arranged below the inner side of the support bracket 1; the lower end of the driving screw rod 52 is rotatably clamped and connected to the positioning block 53 in a penetrating manner; an air inlet pipe 12 is arranged on the support bracket 1; the air inlet pipe 12 is communicated with one side of the lower end of the lower floating cylinder 6; an exhaust pipe 23 is arranged on one side of the upper end of the upper positioning cylinder 2; and an induced draft fan 24 is arranged on the exhaust pipe 23.
As shown in fig. 1, it is further preferable that a bellows 7 is provided around the outer sides of the upper positioning cylinder 2 and the lower floating cylinder 6. Furthermore, a sliding clamping groove 11 which is longitudinally distributed is respectively arranged inside the supporting bracket 1; the lower floating cylinder 6 is vertically and slidably clamped on the sliding clamping groove 11 on the inner side of the supporting bracket 1 through the sliding clamping connection rods 62 outside the two sides. Further, both sides of the floating column 4 are connected to the inner sidewall of the lower floating cylinder 6 through connection insulating rods 42. Further, an insulating closing cover 22 is arranged at the upper end of the upper positioning cylinder 2; the vertical rod 3 is fixedly connected in the middle of the insulating sealing cover 22 in a penetrating manner; the periphery of the insulating closing cover 22 is fixed on the periphery of the upper end of the upper positioning cylinder 2 through screws 221. Further, the lower end of the lower floating cylinder 6 is provided with an ash discharge pipe 63; a vent pipe 631 is arranged at one side of the ash discharge pipe 63; the air pipe 631 is communicated with the air inlet pipe 12 through a telescopic pipe 632. The bottom of the ash discharge pipe 63 is provided with an on-off valve.
As shown in figure 1, a processing method of a compound vitamin feed comprises the following steps that when the feed dust concentration in the air is high, a driving screw 52 is rotated to drive a floating internal thread cylinder 51 to move downwards, and further drive a lower floating cylinder 6 to move downwards, so that the longitudinal length of an upper positioning cylinder 2 and the longitudinal length of the lower floating cylinder 6 are prolonged, and the adsorption area of the upper positioning cylinder 2 and the lower floating cylinder 6 are increased; then the power is turned on, the upper positioning cylinder 2 is connected with the positive electrode of the power supply, so that the upper positioning cylinder 2 and the lower floating cylinder 6 are both provided with positive charges, the vertical rod 3 is connected with the negative electrode of the power supply, the vertical rod 3 and the floating column 4 are both provided with negative charges, the induced draft fan 24 on the exhaust pipe 23 is turned on, feed dust is sucked into the lower floating cylinder 6 from the air inlet pipe 12, the feed dust particles are contacted with the vertical rod 3 and the floating column 4 and then are provided with negative charges, then the feed dust particles with negative charges can be respectively sucked onto the inner walls of the upper positioning cylinder 2 and the lower floating cylinder 6 with positive charges, dust suppression is realized, and air for removing the feed dust particles is discharged from the exhaust pipe.
The invention changes the integrated structure of the traditional electrified cylinder body, designs a structure that the lower floating cylinder 6 is stretched and floated at the lower end of the upper positioning cylinder 2, and drives the lower floating cylinder 2 by additionally arranging the floating driving mechanism 5, when the concentration of feed dust in the air is higher, the driving screw rod 52 is rotated to drive the floating internal thread cylinder 51 to move downwards, and further the lower floating cylinder 6 is driven to move downwards, so the longitudinal length of the upper positioning cylinder 2 and the lower floating cylinder 6 is prolonged, the adsorption area of the upper positioning cylinder 2 and the lower floating cylinder 6 is increased, the adjustment is realized, and the use is flexible.
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 (7)
1. A dust suppression device for compound vitamin feed production is characterized by comprising a support bracket, an upper positioning barrel, a lower floating barrel, a vertical rod, a floating column and a floating driving mechanism; the upper positioning cylinder and the lower floating cylinder are both of structures which are hollow inside, closed at the periphery and opened at two ends; a support bracket is respectively arranged below the two sides of the upper positioning cylinder; the outer part of one side of the upper positioning cylinder is connected with the positive electrode of a power supply through a guide rod; the lower floating cylinder is arranged below the upper positioning cylinder; the periphery of the lower end of the upper positioning cylinder is provided with an annular insertion groove; the periphery of the upper end of the lower floating cylinder is provided with an annular plug connector; the lower floating cylinder is inserted into the annular insertion groove around the lower end of the upper positioning cylinder in a vertical sliding manner through the annular insertion piece; the outer parts of two sides of the lower floating cylinder are respectively provided with a sliding clamping and connecting rod; the lower floating cylinder is vertically and slidably clamped on the inner side of the supporting bracket through the sliding clamping and connecting rods outside the two sides; a floating column is arranged in the middle of the inner part of the lower floating cylinder; the upper end of the floating column is internally provided with a plug hole; the vertical rod is inserted into the middle of the upper end of the upper positioning cylinder and extends into the inserting hole in the upper end of the floating column; the upper end of the vertical rod extends to the outside of the upper positioning cylinder and is connected with the negative electrode of the power supply through the guide rod; the floating driving mechanism is arranged below the sliding clamping and connecting rod on one side of the lower floating cylinder; the floating driving mechanism drives the lower floating cylinder to slide up and down; the floating driving mechanism comprises a floating internal thread cylinder, a driving screw and a positioning block; the floating internal thread cylinder is arranged on the lower side of the sliding clamping and connecting rod; the internal thread at the lower end of the floating internal thread cylinder is rotationally connected with a driving screw; a positioning block is fixedly arranged below the inner side of the supporting bracket; the lower end of the driving screw is rotatably clamped and connected on the positioning block in a penetrating manner; an air inlet pipe is arranged on the supporting bracket; the air inlet pipe is communicated with one side of the lower end of the lower floating cylinder; an exhaust pipe is arranged on one side of the upper end of the upper positioning cylinder; and the exhaust pipe is provided with a draught fan.
2. A dust suppressing device for vitamin complex feed production as claimed in claim 1, wherein the upper positioning cylinder and the lower floating cylinder are provided with telescopic bellows on the outer sides.
3. A dust suppression device for vitamin complex feed production as claimed in claim 1, wherein the inside of the supporting bracket is respectively provided with a sliding slot distributed longitudinally; the lower floating cylinder is connected to the sliding clamping groove on the inner side of the supporting bracket in a vertically sliding clamping mode through the sliding clamping connecting rods outside the two sides.
4. A dust suppressing device for vitamin complex feed production as claimed in claim 1, wherein both sides of said floating column are connected to the inner side wall of the lower floating cylinder through connecting insulating rods.
5. A dust suppressing device for vitamin complex feed production as claimed in claim 1, wherein the upper end of said upper positioning cylinder is provided with an insulating closing cap; the vertical rod is fixedly connected in the middle of the insulating sealing cover in a penetrating manner; the periphery of the insulating closed cover is fixed on the periphery of the upper end of the upper positioning cylinder through screws.
6. A dust suppression device for vitamin complex feed production as claimed in claim 1, wherein the lower end of said lower floating cylinder is provided with an ash discharge pipe; a vent pipe is arranged on one side of the ash discharge pipe; the air pipe is communicated with the air inlet pipe through a telescopic pipe.
7. The method for processing vitamin complex feed according to claim 1, wherein the steps are that when the concentration of feed dust in the air is high, the driving screw is rotated to drive the floating internal thread cylinder to move downwards and further drive the lower floating cylinder to move downwards, so that the longitudinal length of the upper positioning cylinder and the lower floating cylinder is extended, and the adsorption area of the upper positioning cylinder and the lower floating cylinder is increased; then the power is turned on, the upper positioning cylinder is connected with the positive electrode of the power supply, so that the upper positioning cylinder and the lower floating cylinder are both positively charged, the vertical rod is connected with the negative electrode of the power supply, the vertical rod and the floating column are both negatively charged, the induced fan on the exhaust pipe is turned on, feed dust is sucked into the lower floating cylinder from the air inlet pipe, the feed dust particles are negatively charged after contacting the vertical rod and the floating column, then the feed dust particles with negative charges can be respectively sucked onto the inner walls of the upper positioning cylinder with positive charges and the lower floating cylinder, dust suppression is realized, and air for removing the feed dust particles is discharged from the exhaust pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110059188.7A CN112718245B (en) | 2021-01-18 | 2021-01-18 | Dust suppression device for production of compound vitamin feed and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110059188.7A CN112718245B (en) | 2021-01-18 | 2021-01-18 | Dust suppression device for production of compound vitamin feed and processing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112718245A true CN112718245A (en) | 2021-04-30 |
| CN112718245B CN112718245B (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110059188.7A Active CN112718245B (en) | 2021-01-18 | 2021-01-18 | Dust suppression device for production of compound vitamin feed and processing method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014100629A (en) * | 2012-11-16 | 2014-06-05 | Takubo Seiki Seisakusho:Kk | Air filter device |
| CN206262302U (en) * | 2016-12-02 | 2017-06-20 | 镇江高美新材料有限公司 | A kind of air-borne dust adsorption tower |
| CN107875760A (en) * | 2017-12-28 | 2018-04-06 | 何振贤 | A kind of new adjustable dust settling pocket |
| CN207549436U (en) * | 2017-12-02 | 2018-06-29 | 吴江市博大电子科技有限公司 | A kind of plastic suction forming apparatus for plastic-sucking tray production |
| CN209151470U (en) * | 2018-09-21 | 2019-07-23 | 上海海鼎实业发展有限公司 | A kind of telescopic electric cabinet cooling device |
| CN211659992U (en) * | 2020-01-15 | 2020-10-13 | 南京乔康生物科技有限公司 | Slide positioning formula natural vitamin E cauldron of esterifying |
| CN211678247U (en) * | 2020-01-17 | 2020-10-16 | 山东同辉生物科技有限公司 | Vitamin D3 powder production line dust suppression device for fodder |
-
2021
- 2021-01-18 CN CN202110059188.7A patent/CN112718245B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014100629A (en) * | 2012-11-16 | 2014-06-05 | Takubo Seiki Seisakusho:Kk | Air filter device |
| CN206262302U (en) * | 2016-12-02 | 2017-06-20 | 镇江高美新材料有限公司 | A kind of air-borne dust adsorption tower |
| CN207549436U (en) * | 2017-12-02 | 2018-06-29 | 吴江市博大电子科技有限公司 | A kind of plastic suction forming apparatus for plastic-sucking tray production |
| CN107875760A (en) * | 2017-12-28 | 2018-04-06 | 何振贤 | A kind of new adjustable dust settling pocket |
| CN209151470U (en) * | 2018-09-21 | 2019-07-23 | 上海海鼎实业发展有限公司 | A kind of telescopic electric cabinet cooling device |
| CN211659992U (en) * | 2020-01-15 | 2020-10-13 | 南京乔康生物科技有限公司 | Slide positioning formula natural vitamin E cauldron of esterifying |
| CN211678247U (en) * | 2020-01-17 | 2020-10-16 | 山东同辉生物科技有限公司 | Vitamin D3 powder production line dust suppression device for fodder |
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| CN112718245B (en) | 2022-11-18 |
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