CN115779778A - Powder caustic soda feeder is used in hydroxamic acid salt preparation - Google Patents
Powder caustic soda feeder is used in hydroxamic acid salt preparation Download PDFInfo
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- CN115779778A CN115779778A CN202211568012.5A CN202211568012A CN115779778A CN 115779778 A CN115779778 A CN 115779778A CN 202211568012 A CN202211568012 A CN 202211568012A CN 115779778 A CN115779778 A CN 115779778A
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Abstract
The invention relates to the technical field of flotation collector synthesis, in particular to a powder alkali feeder for preparing hydroxamate. The invention provides a powder alkali feeder for preparing hydroxamic acid salt, which can automatically adjust the addition amount of powder alkali according to the temperature of a methanol solution of hydroxylamine salt in a mixing barrel. A powder alkali feeder for preparing hydroxamate comprises a frame, a mixing barrel, an alkali adding barrel, a stirring motor, a stirring rod and the like; the upper part of the frame is connected with a mixing barrel, the upper part of the frame is connected with an alkali adding barrel for containing caustic soda powder, the alkali adding barrel is positioned above the mixing barrel, the lower part of the frame is connected with a stirring motor, and the mixing barrel is connected with a stirring rod in a rotating mode. Add the material frame and be extrudeed intermittent type nature rebound by the puddler for add the powder alkali intermittent type nature in the alkali bucket and add to the blending barrel, at the preparation in-process, temperature sensor can monitor temperature in the blending barrel, and the temperature is higher than the default and is just controlled accuse material ring and is slided downwards and plug up partly feed inlet, thereby reduces the addition of powder alkali.
Description
Technical Field
The invention relates to the technical field of flotation collector synthesis, in particular to a powder alkali feeder for preparing hydroxamate.
Background
When preparing hydroxamate, adding powdered alkali into methanol solution of hydroxylamine salt, adding organic methyl carboxylate, reacting at specific temperature for certain time, and distilling to recover methanol to obtain hydroxamate product. When the powdered alkali is prepared and added, the powdered alkali is added when the temperature of a methanol solution of hydroxylamine salt is 10-30 ℃, the adding temperature is kept not to exceed 30 ℃, and the powdered alkali has the characteristic of releasing heat when meeting water, so that all the powdered alkali cannot be added at one time, and the existing preparation device cannot accurately control the adding amount of the alkali according to the temperature, so that the water temperature is too high, and the preparation effect of hydroxamate is influenced.
To solve the above problems, we propose a powdered alkali feeder for hydroxamate preparation capable of automatically adjusting the addition amount of powdered alkali according to the temperature of a methanol solution of hydroxylamine salt in a mixing tank.
Disclosure of Invention
In order to overcome the defect that the adding amount of alkali cannot be accurately controlled according to the temperature of the existing preparation device, the invention provides a powder alkali feeder for preparing hydroxamate, which can automatically adjust the adding amount of the powder alkali according to the temperature of a methanol solution of hydroxylamine salt in a mixing barrel.
The utility model provides a hydroxamic acid salt preparation is with powder alkali charging means, which comprises a frame, the mixing barrel, add the alkali bucket, agitator motor, the puddler, reinforced mechanism and accuse material mechanism, frame upper portion is connected with the mixing barrel, frame upper portion is connected with the alkali bucket that adds that is used for the powder alkali of splendid attire, it is located the mixing barrel top to add the alkali bucket, the frame sub-unit connection has agitator motor, the internal rotation formula of mixing barrel is connected with the puddler, the puddler lower extreme and agitator motor's output shaft, it is equipped with the reinforced mechanism that is used for adding powder alkali in the mixing barrel to add alkali bucket lower part, be equipped with accuse material mechanism between mixing barrel and the alkali bucket, accuse material mechanism is used for the addition according to temperature control powder alkali in the mixing barrel.
As a further preferred scheme, the feeding mechanism comprises a feeding frame, a feeding spring and a connecting ring, the lower part of the alkali adding barrel is movably connected with the feeding frame, the stirring rod rotates to be in contact with the lower part of the feeding frame, the lower part of the feeding frame is rotatably connected with the connecting ring, and the feeding spring is connected between the connecting ring and the alkali adding barrel.
As a further preferred scheme, the opening at the lower part of the feeding frame is inclined inwards, and a plurality of feeding holes are formed in the middle of the feeding frame at equal intervals.
As a further preferred scheme, the material control mechanism comprises an electric push rod, an L-shaped connecting rod, a material control ring and a temperature sensor, the lower part of the left side of the alkali adding barrel is connected with the electric push rod, the extending end of the electric push rod is connected with the L-shaped connecting rod, the right part of the L-shaped connecting rod extends into the alkali adding barrel and is connected with the alkali adding barrel in a sliding manner, the right part of the L-shaped connecting rod is connected with the material control ring for controlling the addition amount of powder alkali, the material control ring is sleeved on the material adding frame, the rear side of the lower part in the mixing barrel is connected with the temperature sensor, and the temperature sensor is electrically connected with the electric push rod.
As a further preferred scheme, the alkali adding device further comprises a dispersing mechanism used for dispersing powder alkali in the alkali adding barrel, wherein the dispersing mechanism comprises a connecting rod, a threaded rod and stirring blades, the middle part in the alkali adding barrel is connected with the connecting rod, the middle part of the connecting rod is connected with the threaded rod, a feeding frame is in threaded connection with the threaded rod, and the upper side of the feeding frame is connected with a plurality of stirring blades which are used for stirring the powder alkali in the alkali adding barrel at equal intervals.
As further preferred scheme, still including being used for beating the vibrations to reinforced frame vibrations vibration mechanism, vibration mechanism is including vibrations ball and vibrations piece, and puddler upper portion equidistance is connected with a plurality of vibrations ball, and reinforced frame lower part rear side is connected with two vibrations pieces, and vibrations ball rotates all to contact with vibrations piece.
As a further preferred scheme, the device further comprises a scraping mechanism used for scraping off the powdered alkali adhered to the inner side of the feeding frame, the scraping mechanism comprises a vertical rod and scraping plates, the lower portion of the threaded rod is connected with the vertical rod in a sliding mode, the lower portion of the vertical rod is connected with two scraping plates used for scraping off the residual powdered alkali on the inner side of the feeding frame, and the scraping plates are attached to the inner side of the feeding frame.
As a further preferable scheme, the alkali adding device further comprises an adjusting mechanism for adjusting the blanking mode, the adjusting mechanism comprises a rotating shaft and a rotating rod, the lower part of the right side of the alkali adding barrel is rotatably connected with the rotating shaft, and the lower part of the rotating shaft is connected with the rotating rod for clamping the connecting ring.
The invention has the following advantages: 1. add the material frame by puddler extrusion intermittent type nature rebound for add the powder alkali intermittent type nature in the alkali bucket and add to the blending barrel, at the preparation in-process, temperature sensor can monitor temperature in the blending barrel, and the temperature is higher than the default and is convenient for control accuse material ring down slip and plug up partly feed inlet, thereby reduces the powder alkali that feed inlet department passed through, with the addition that reduces powder alkali.
2. The feeding frame slides upwards to rotate in cooperation with the threaded rod, so that the stirring blades are driven to rotate to stir powdered alkali in the alkali feeding barrel, and the powdered alkali agglomeration is avoided to influence the blanking.
3. Vibrations ball rotates can strike vibrations to reinforced frame with vibrations piece cooperation, makes things convenient for the powder alkali to fall down.
4. When the feeding frame rotates, the scraper in a static state can scrape off the powdered alkali adhered to the inner side of the feeding frame.
5. Add the frame rebound back, the rotatable rotary rod of staff blocks the go-between, and at this moment, the powder alkali that adds in the alkali bucket just sustainably falls into the blending tank and feeds in raw material, so, can adjust as required and add the material mode.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic sectional perspective view of the present invention.
Fig. 3 is a schematic perspective view of a first feeding mechanism according to the present invention.
Fig. 4 is a schematic perspective view of a second feeding mechanism of the present invention.
Fig. 5 is a schematic perspective view of the material control mechanism of the present invention.
Fig. 6 is a schematic perspective view of the dispersing mechanism of the present invention.
Fig. 7 is a schematic perspective view of the vibration mechanism of the present invention.
Fig. 8 is a schematic perspective view of the scraping mechanism of the present invention.
Fig. 9 is a schematic perspective view of the adjusting mechanism of the present invention.
Wherein: 1-frame, 2-mixing barrel, 3-alkali adding barrel, 4-stirring motor, 5-stirring rod, 6-feeding mechanism, 61-feeding frame, 62-feeding spring, 63-connecting ring, 7-material control mechanism, 71-electric push rod, 72-L-shaped connecting rod, 73-material control ring, 74-temperature sensor, 8-dispersing mechanism, 81-connecting rod, 82-threaded rod, 83-stirring blade, 9-vibrating mechanism, 91-vibrating ball, 92-vibrating block, 10-scraping mechanism, 101-vertical rod, 102-scraping plate, 11-adjusting mechanism, 1101-rotating shaft and 1102-rotating rod.
Detailed Description
The invention is further illustrated by the following specific examples in which, unless otherwise explicitly stated and limited, terms such as: the arrangement, installation, connection are to be understood broadly, for example, they may be fixed, detachable, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The utility model provides a hydroxamic acid salt preparation is with powder alkali charging means, as shown in fig. 1-9, including frame 1, blending tank 2, add alkali bucket 3, agitator motor 4, puddler 5, reinforced mechanism 6 and accuse material mechanism 7, 1 upper portion bolt joint of frame has blending tank 2, 1 upper portion of frame is connected with and adds alkali bucket 3, it can hold powder alkali to add alkali bucket 3, it is located blending tank 2 top to add alkali bucket 3, 1 lower part bolt joint of frame has agitator motor 4, 2 internal rotation formulas in blending tank are connected with puddler 5, 5 lower extremes of puddler pass through the coupling joint with agitator motor 4's output shaft, 3 lower parts of adding alkali bucket are equipped with reinforced mechanism 6, reinforced mechanism 6 can add powder alkali to blending tank 2 in, be equipped with accuse material powder process mechanism 7 between blending tank 2 and the alkali bucket 3, accuse material mechanism 7 can be according to the addition of temperature accuse alkali in the blending tank 2.
When using the device, the staff puts into mixing tank 2 with the methanol solution of hydroxylamine salt, store powder alkali in adding alkali bucket 3, when preparing hydroxamate, the staff starts agitator motor 4, agitator motor 4's output shaft operation drives puddler 5 and rotates, can control feeding mechanism 6 when agitator bar 5 rotates in adding mixing tank 2 with powder alkali intermittent type nature, puddler 5 rotates and stirs the methanol solution and the powder alkali of hydroxylamine salt in mixing tank 2, make its abundant reaction, when adding powder alkali, accuse material mechanism 7 can be according to the powder alkali volume that feeding mechanism 6 added of temperature regulation in mixing tank 2, it is no longer than 30 to keep reinforced temperature, after hydroxamate preparation is accomplished, the staff closes agitator motor 4.
As shown in fig. 1-4, the feeding mechanism 6 comprises a feeding frame 61, a feeding spring 62 and a connecting ring 63, the feeding frame 61 is movably connected to the lower portion of the soda adding barrel 3, the lower opening of the feeding frame 61 is inclined inward, at least five feeding ports are equidistantly formed in the middle of the feeding frame 61, the stirring rod 5 rotates to contact with the lower portion of the feeding frame 61, the connecting ring 63 is rotatably connected to the lower portion of the feeding frame 61, and the feeding spring 62 is connected between the connecting ring 63 and the soda adding barrel 3.
When the device is used, when the stirring rod 5 rotates to be in contact with the feeding frame 61, the stirring rod 5 continues to rotate to extrude the feeding frame 61 to slide upwards, the connecting ring 63 moves upwards along with the stirring rod, the feeding spring 62 deforms, after the feeding frame 61 slides upwards, the feeding hole enters the alkali adding barrel 3, powdered alkali in the alkali adding barrel 3 can enter the feeding frame 61 through the feeding hole and then falls into the mixing barrel 2 through the feeding frame 61, after the stirring rod 5 rotates to be separated from the feeding frame 61, the connecting ring 63 drives the feeding frame 61 to slide downwards to reset under the reset action of the feeding spring 62, when the stirring rod 5 rotates to be in contact with the feeding frame 61 again, the actions are repeated to enable the feeding frame 61 to slide upwards intermittently, and therefore, the powdered alkali can be intermittently added into the mixing barrel 2 during stirring and mixing.
As shown in fig. 2 and 5, the material control mechanism 7 includes an electric push rod 71, an L-shaped connecting rod 72, a material control ring 73 and a temperature sensor 74, the electric push rod 71 is bolted to the lower portion of the left side of the alkali adding barrel 3, the L-shaped connecting rod 72 is welded to the extended end of the electric push rod 71, the right portion of the L-shaped connecting rod 72 extends into the alkali adding barrel 3 and is connected with the alkali adding barrel 3 in a sliding manner, the material control ring 73 is connected to the right portion of the L-shaped connecting rod 72, the addition amount of the alkali powder can be controlled by the material control ring 73, the material control ring 73 is sleeved on the material adding frame 61, the rear side of the lower portion in the mixing barrel 2 is connected with the temperature sensor 74, and the temperature sensor 74 is electrically connected with the electric push rod 71.
When the device is used, the temperature sensor 74 can monitor the temperature in the mixing barrel 2, when the temperature in the mixing barrel 2 is higher than a preset value, the temperature sensor 74 controls the electric push rod 71 to extend, the electric push rod 71 extends to drive the L-shaped connecting rod 72 to slide downwards, the L-shaped connecting rod 72 slides downwards to drive the material control ring 73 to slide downwards to block a part of feed inlet, so that the powdered alkali passing through the feed inlet is reduced, the addition amount of the powdered alkali is reduced, when the temperature in the mixing barrel 2 is lower than the preset value, the temperature sensor 74 controls the electric push rod 71 to shorten, the electric push rod 71 shortens, the material control ring 73 is driven by the L-shaped connecting rod 72 to move upwards to stop the feed inlet, at the moment, the normal amount of the powdered alkali can be added by the feeding frame 61, and therefore, the discharging amount of the powdered alkali can be adjusted according to the temperature in the mixing barrel 2.
Example 2
On embodiment 1's basis, as shown in fig. 2 and fig. 6, still including dispersion mechanism 8, dispersion mechanism 8 can be with the dispersion of powder alkali in the alkali bucket 3, dispersion mechanism 8 is including connecting rod 81, threaded rod 82 and stirring leaf 83, and the welding of the middle part has connecting rod 81 in the alkali bucket 3, and connecting rod 81 middle part is connected with threaded rod 82, and reinforced frame 61 passes through threaded connection with threaded rod 82, and reinforced frame 61 upside equidistance is connected with three stirring leaf 83, and stirring leaf 83 can stir the powder alkali in the alkali bucket.
When using the device, reinforced frame 61 is when being extrudeed upward movement by puddler 5, under the effect of threaded rod 82, reinforced frame 61 can rotate in go-between 63 when the upward movement, reinforced frame 61 rotates and drives stirring leaf 83 and rotate, stirring leaf 83 rotates stirs the powdered alkali in the alkali bucket 3, avoid powdered alkali agglomeration influence unloading, when reinforced frame 61 moves down, under the effect of threaded rod 82, reinforced frame 61 also can drive stirring leaf 83 reversal and stir the powdered alkali in the alkali bucket 3 once more.
As shown in fig. 1 and 7, the feeding frame 61 is further provided with a vibration mechanism 9, the vibration mechanism 9 can knock and vibrate the feeding frame 61, the vibration mechanism 9 comprises vibration balls 91 and vibration blocks 92, the four vibration balls 91 are equidistantly welded on the upper portion of the stirring rod 5, the two vibration blocks 92 are welded on the rear side of the lower portion of the feeding frame 61, and the vibration balls 91 are in contact with the vibration blocks 92.
When using the device, puddler 5 rotates and drives vibrations ball 91 and rotate, rotates to when contacting with vibrations piece 92 when vibrations ball 91, vibrations ball 91 can strike vibrations piece 92, and then drives and expects frame 61 and shake, makes things convenient for the powder alkali to fall down.
As shown in fig. 2 and fig. 8, the powder alkali removing device further comprises a scraping mechanism 10, the scraping mechanism 10 can scrape the powder alkali adhered to the inner side of the feeding frame 61, the scraping mechanism 10 comprises a vertical rod 101 and a scraping plate 102, the vertical rod 101 is connected to the lower portion of the threaded rod 82 in a sliding manner, two scraping plates 102 are welded to the lower portion of the vertical rod 101, the scraping plate 102 can scrape the residual powder alkali on the inner side of the feeding frame 61, and the scraping plates 102 are attached to the inner side of the feeding frame 61.
When the device is used, the feeding frame 61 moves upwards to extrude the vertical rod 101 to slide upwards in the threaded rod 82 through the scraper 102, when the feeding frame 61 rotates, the scraper 102 in a static state can scrape off powdered alkali adhered to the inner side of the feeding frame 61, and when the feeding frame 61 moves downwards, the scraper 102 drives the vertical rod 101 to slide downwards to reset under the action of gravity.
As shown in fig. 2 and 9, the alkali adding barrel further comprises an adjusting mechanism 11, the adjusting mechanism 11 can adjust the blanking mode, the adjusting mechanism 11 comprises a rotating shaft 1101 and a rotating rod 1102, the rotating shaft 1101 is rotatably connected to the lower portion of the right side of the alkali adding barrel 3, the rotating rod 1102 is welded to the lower portion of the rotating shaft 1101, and the connecting ring 63 can be clamped by the rotating rod 1102.
When using the device, the staff can push the feeding frame 61 to move upwards, and then rotate the rotating shaft 1101, so that the connecting ring 63 is blocked by the rotating rod 1102, at this time, powdered soda in the soda adding barrel 3 can continuously fall into the mixing barrel 2 for feeding, and when intermittent powdered soda addition is needed, the staff reverses the rotating rod 1102 to loosen the connecting ring 63.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a hydroxamic acid salt preparation is with powder alkali charging means, including frame (1), mixing drum (2), add alkali bucket (3), agitator motor (4) and puddler (5), frame (1) upper portion is connected with mixing drum (2), frame (1) upper portion is connected with the alkali bucket (3) that adds that is used for splendid attire powder alkali, it is located mixing drum (2) top to add alkali bucket (3), frame (1) sub-unit connection has agitator motor (4), mixing drum (2) internal rotation formula is connected with puddler (5), puddler (5) lower extreme and the output shaft of agitator motor (4) are connected, its characterized in that: still including reinforced mechanism (6) and accuse material mechanism (7), add alkali bucket (3) lower part and be equipped with and be used for adding reinforced mechanism (6) of powder alkali in mixing barrel (2), be equipped with accuse material mechanism (7) between mixing barrel (2) and alkali bucket (3), accuse material mechanism (7) are used for the addition of the powder alkali according to temperature control in mixing barrel (2).
2. A hydroxamate preparation powder base feeder according to claim 1, wherein: the feeding mechanism (6) comprises a feeding frame (61), a feeding spring (62) and a connecting ring (63), the lower part of the alkali feeding barrel (3) is movably connected with the feeding frame (61), the stirring rod (5) rotates to be in contact with the lower part of the feeding frame (61), the lower part of the feeding frame (61) is rotatably connected with the connecting ring (63), and the feeding spring (62) is connected between the connecting ring (63) and the alkali feeding barrel (3).
3. A hydroxamate preparation powder base feeder according to claim 2, wherein: the opening at the lower part of the feeding frame (61) is inclined inwards, and a plurality of feeding holes are arranged in the middle part of the feeding frame (61) at equal intervals.
4. A hydroxamate preparation powder base feeder according to claim 3, wherein: accuse material mechanism (7) is including electric putter (71), L shape connecting rod (72), accuse material ring (73) and temperature sensor (74), it has electric putter (71) to add alkali bucket (3) left side sub-unit connection, the extension end of electric putter (71) is connected with L shape connecting rod (72), L shape connecting rod (72) right part stretches into in adding alkali bucket (3), and with adding alkali bucket (3) sliding connection, L shape connecting rod (72) right part is connected with accuse material ring (73) that are used for controlling the powder alkali addition, accuse material ring (73) cover is on adding material frame (61), lower part rear side is connected with temperature sensor (74) in mixing barrel (2), temperature sensor (74) and electric putter (71) are through electric connection.
5. A hydroxamate preparation powder base feeder according to claim 4, wherein: still including dispersion mechanism (8) that is used for the dispersion of the powder alkali in the alkali bucket (3), dispersion mechanism (8) are including connecting rod (81), threaded rod (82) and stirring leaf (83), the middle part is connected with connecting rod (81) in the alkali bucket (3), connecting rod (81) middle part is connected with threaded rod (82), reinforced frame (61) pass through threaded connection with threaded rod (82), reinforced frame (61) upside equidistance is connected with a plurality of and is used for carrying out stirring leaf (83) that stir to the powder alkali in the alkali bucket.
6. A hydroxamate preparation powder base feeder according to claim 5, wherein: still including being used for beating vibrations vibration mechanism (9) to reinforced frame (61), vibration mechanism (9) are connected with a plurality of vibrations ball (91) including vibrations ball (91) and vibrations piece (92) on puddler (5) upper portion equidistance, reinforced frame (61) lower part rear side is connected with two vibrations pieces (92), vibrations ball (91) rotate all with vibrations piece (92) contact.
7. A hydroxamate preparation powder base feeder according to claim 6, wherein: still including being used for scraping the scraping mechanism (10) of the powder alkali of the inboard adhesion of feeding frame (61), scraping mechanism (10) including montant (101) and scraper blade (102), threaded rod (82) lower part sliding type is connected with montant (101), montant (101) sub-unit connection has two scraper blades (102) that are used for scraping the inboard powder alkali that remains of feeding frame (61), scraper blade (102) all with the inboard laminating of feeding frame (61).
8. A hydroxamate preparation powder base feeder according to claim 7, wherein: the alkali adding barrel is characterized by further comprising an adjusting mechanism (11) used for adjusting the blanking mode, the adjusting mechanism (11) comprises a rotating shaft (1101) and a rotating rod (1102), the rotating shaft (1101) is rotatably connected to the lower portion of the right side of the alkali adding barrel (3), and the rotating rod (1102) used for clamping the connecting ring (63) is connected to the lower portion of the rotating shaft (1101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211568012.5A CN115779778A (en) | 2022-12-08 | 2022-12-08 | Powder caustic soda feeder is used in hydroxamic acid salt preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211568012.5A CN115779778A (en) | 2022-12-08 | 2022-12-08 | Powder caustic soda feeder is used in hydroxamic acid salt preparation |
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| Publication Number | Publication Date |
|---|---|
| CN115779778A true CN115779778A (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211568012.5A Pending CN115779778A (en) | 2022-12-08 | 2022-12-08 | Powder caustic soda feeder is used in hydroxamic acid salt preparation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117282337A (en) * | 2023-11-24 | 2023-12-26 | 河北昊泽化工有限公司 | Automatic feeding device of chemical preparation tank |
-
2022
- 2022-12-08 CN CN202211568012.5A patent/CN115779778A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117282337A (en) * | 2023-11-24 | 2023-12-26 | 河北昊泽化工有限公司 | Automatic feeding device of chemical preparation tank |
| CN117282337B (en) * | 2023-11-24 | 2024-02-13 | 河北昊泽化工有限公司 | Automatic feeding device of chemical preparation tank |
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