CN116689378A - Microsphere washing device - Google Patents

Microsphere washing device Download PDF

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Publication number
CN116689378A
CN116689378A CN202310681189.4A CN202310681189A CN116689378A CN 116689378 A CN116689378 A CN 116689378A CN 202310681189 A CN202310681189 A CN 202310681189A CN 116689378 A CN116689378 A CN 116689378A
Authority
CN
China
Prior art keywords
container body
rotating shaft
wall
inner screen
screen drum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310681189.4A
Other languages
Chinese (zh)
Inventor
欧阳洁
贾博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bosikon Hangzhou Biomedical Co ltd
Original Assignee
Bosikon Hangzhou Biomedical Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bosikon Hangzhou Biomedical Co ltd filed Critical Bosikon Hangzhou Biomedical Co ltd
Priority to CN202310681189.4A priority Critical patent/CN116689378A/en
Publication of CN116689378A publication Critical patent/CN116689378A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04Cleaning involving contact with liquid
    • B08B3/06Cleaning involving contact with liquid using perforated drums in which the article or material is placed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08Cleaning containers, e.g. tanks
    • B08B9/0804Cleaning containers having tubular shape, e.g. casks, barrels, drums
    • B08B9/0808Cleaning containers having tubular shape, e.g. casks, barrels, drums by methods involving the use of tools, e.g. by brushes, scrapers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

The invention discloses a microsphere washing device, which comprises a container body, wherein a rotating shaft is inserted in the axis of the container body, the rotating shaft is in rotating connection with the container body, a bearing and a shaft seal are matched between the rotating shaft and the container body, the shaft seal is sealed on the inner side of the bearing, a waste pipe is arranged on the outer wall of the container body, which is close to the bottom, a driving unit is arranged on the outer part of the container body, and a transmission unit is matched between the driving unit and the rotating shaft; when the water permeability of the inner screen cylinder is insufficient (namely, the screen holes are blocked), the stirring part floats upwards, the inner cleaning part is pushed to move outwards to contact the inner wall of the inner screen cylinder after floating, impurities attached to the inner wall of the inner screen cylinder are removed, and when the liquid level continues to rise due to the unsatisfactory cleaning effect, the pressure applied to the inner cleaning part by the upward movement of the cleaning part is also increased, so that the cleaning effect is improved.

Description

Microsphere washing device
Technical Field
The invention relates to a microsphere washing device.
Background
Conventional microsphere washing and separation device technology relies primarily on the use of screens of specific pore sizes to effect separation of the liquid medium from the microspheres. As the liquid passes through the screen, the microspheres are trapped, allowing separation.
However, in actual operation, it is found that impurities falling off from the microspheres in the screen cylinder block the screen holes after agglomerating, and cannot pass through the screen holes, so that the water outlet efficiency in the screen cylinder is smaller than the water inlet efficiency, the liquid level in the screen cylinder is increased, and emergency maintenance is needed to be stopped.
The mode of cleaning the built-in screen drum in the market at present is to fixedly arrange a scraping plate for cleaning on the rotating shaft, and the scraping plate cleans the inner wall of the screen drum along with the movement of the rotating shaft.
The above technical scheme can finish the dredging of the screen drum, but has the following disadvantages:
the scraping plate is always in contact with the inner wall of the screen cylinder, so that the rotation resistance of the rotating shaft is high.
The scraper blade is contacted with the inner wall of the screen cylinder all the time, so that the scraper blade is worn or deformed rapidly, and the contact surface of the scraper blade and the screen cylinder is worn, so that the scraper blade cannot contact with the inner wall of the screen cylinder under the condition of not manually adjusting a gap.
Therefore, we have designed a microsphere washing device that can adjust the cleaning force by buoyancy and reduce contact and wear under the condition of sufficient water-passing efficiency.
Disclosure of Invention
The invention aims to solve the technical problem of providing a microsphere washing device which can adjust the cleaning force by utilizing buoyancy, reduce contact and reduce abrasion under the condition of sufficient water-passing efficiency.
In order to solve the problems, the invention adopts the following technical scheme:
a microsphere washing device comprises a washing device, a washing device and a washing device,
the container body, the axle center of the container body is inserted with a rotating shaft, the rotating shaft is connected with the container body in a rotating way, a bearing and a shaft seal are matched between the rotating shaft and the container body, the shaft seal is sealed at the inner side of the bearing, a waste water pipe is arranged at the position of the outer wall of the container body, which is close to the bottom, a driving unit is arranged at the outer part of the container body, a transmission unit is matched between the driving unit and the rotating shaft,
the inner screen cylinder is fixedly arranged in the container body and is in clearance fit with the container body, an injection pipe for injecting microspheres and solution and an air inlet pipe for injecting compressed air are arranged at the upper end of the container body, the injection pipe and the air inlet pipe are respectively inserted into the inner screen cylinder from the top downwards, screen holes are uniformly distributed on the surface of the inner screen cylinder, the microspheres are reserved in the screen holes, the waste liquid after washing is discharged to the outside of the inner screen cylinder after passing through the screen holes, an eduction pipe for educing the microspheres is arranged at the bottom of the inner screen cylinder, and extends to the outside of the container body,
an outer cleaning part which is installed through the container body and acts on the outer wall of the inner screen cylinder,
an inner cleaning part which is installed through the rotating shaft and rotates along with the rotating shaft,
and the stirring part is provided with buoyancy, the stirring part contacts with the inner cleaning part, and the inner cleaning part moves along the direction away from the rotating shaft along with the floating of the stirring part, so that the contact force with the inner screen drum is increased.
Preferably, a first air inlet pipe is arranged at the upper part of the container body, and the first air inlet pipe is positioned at the outer side of the inner screen cylinder.
Preferably, the container body comprises an upper cover, a lower cover and a middle part, wherein the middle part is rotationally connected between the upper cover and the lower cover, the outer cleaning part is arranged at the inner wall of the middle part, and along with the rotation of the middle part, the outer cleaning part cleans along the surface of the inner screen cylinder, and a steel frame is welded between the upper cover and the lower cover.
Preferably, the outer cleaning part comprises a vertical rod, a loop bar is arranged at the inner wall of the middle part, a movable bar is arranged in the loop bar and fixedly connected with the vertical rod, a spring is arranged in the loop bar and acts on the movable bar, the vertical rod moves towards the direction of the inner screen drum under the action of the spring, and a cleaning scraping bar is implanted on the end face of the vertical rod facing the inner screen drum.
Preferably, the inner cleaning part comprises a scraper, the end surface of the scraper facing the inner wall of the inner screen cylinder is a plane, a first scraping strip is implanted at the plane, the end surface of the scraper facing the rotating shaft is an inclined surface, the lower end of the inclined surface inclines away from the rotating shaft, along with the ascending of the stirring part, the stirring part acts on the inclined surface and pushes the scraper towards the inner wall of the inner screen cylinder, a guide rod is arranged at the outer wall of the rotating shaft, the guide rod penetrates through the scraper, a limit screw is matched with the guide rod after the guide rod penetrates through the scraper, a first spring is assembled on the guide rod and acts between the limit screw and the scraper, and when the first spring is in an uncompressed state, the first scraping strip is in clearance fit with the inner screen cylinder, and the clearance is 1 mm-2 mm.
Preferably, the stirring part comprises a body, a through hole penetrating through the rotating shaft is formed in the axis center of the body, a guide bar is arranged at the hole wall of the through hole, a guide groove matched with the guide bar is formed in the outer wall of the rotating shaft, a sealed cavity is formed in the body, and the outer side face of the body acts on the scraping plate.
Preferably, the upper end face and the lower end face of the body are conical surfaces, and stirring sheets are annularly arranged at the upper end face and the lower end face of the body.
The beneficial effects of the invention are as follows:
firstly, in normal state, the inner cleaning part is in clearance fit with the inner screen cylinder, so that the rotation resistance of the rotating shaft is reduced, and secondly, the abrasion of the inner cleaning part in a non-cleaning state is avoided.
The advantage two, when the efficiency of permeating water of interior screen drum is not enough (that is the sieve mesh exists the jam), stirring portion come-up, promote interior clean portion outside after the come-up and remove to the inner wall of contact interior screen drum, clear away the impurity that adheres to on the interior screen drum inner wall, when cleaning effect is unsatisfactory to lead to the liquid level to continue rising, stirring portion upwards moves and also increases the pressure of appling interior clean portion, increases cleaning effect.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the present device;
FIG. 3 is an enlarged view of FIG. 2 at A;
fig. 4 is an enlarged view of fig. 2 at B;
FIG. 5 is a cross-sectional view of the stirring section;
fig. 6 is a plan view of the stirring section.
Description of the embodiments
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
In the description of the present invention, it should be understood that the terms "one end," "the other end," "the outer side," "the upper," "the inner side," "the horizontal," "coaxial," "the center," "the end," "the length," "the outer end," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, in the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "disposed," "coupled," "connected," "plugged," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Examples
Referring to fig. 1 and 2, a container 1, a rotating shaft 2 is inserted in the shaft center of the container 1, the rotating shaft 2 is rotatably connected with the container 1, a bearing and a shaft seal are matched between the rotating shaft 2 and the container 1, the shaft seal is sealed at the inner side of the bearing, a waste pipe 121 is arranged at the position of the outer wall of the container 1 near the bottom, a driving unit 9 is installed at the outer part of the container 1, a transmission unit 91 is matched between the driving unit 9 and the rotating shaft 2,
an inner screen drum 3, wherein the inner screen drum 3 is fixedly installed inside the container body 1 and is in clearance fit with the container body 1, an injection pipe 101 for injecting microspheres and solution and an air inlet pipe 102 for injecting compressed air are arranged at the upper end of the container body 1, the injection pipe 101 and the air inlet pipe 102 are respectively inserted into the inner screen drum 3 from the top downwards, screen holes 31 are uniformly distributed on the surface of the inner screen drum 3, microspheres are reserved in the screen holes, waste liquid after washing is discharged to the outside of the inner screen drum 31 through the screen holes 31, an eduction pipe 32 for educing the microspheres is arranged at the bottom of the inner screen drum 3, the eduction pipe 32 extends to the outside of the container body 1,
an outer cleaning part 4, the outer cleaning part 4 is installed through the container body 1, the outer cleaning part 4 acts on the outer wall of the inner screen drum 3,
an inner cleaning part 5, the inner cleaning part 5 is installed through the rotating shaft 2, and rotates along with the rotating shaft 2,
and the stirring part 6 is provided with buoyancy, the stirring part 6 contacts the inner cleaning part 5, and the inner cleaning part 5 moves along the direction away from the rotating shaft 2 along with the rising of the stirring part 6, so that the contact force with the inner screen drum 3 is increased.
Examples
Referring to fig. 1, a first air inlet pipe 131 is provided at an upper portion of the container body 1, and the first air inlet pipe 131 is located outside the inner screen drum 3.
The first air inlet pipe 131 is adopted to allow compressed air to enter, so that the air pressure in the container body 1 is increased after the compressed air is filled, and the efficiency of discharging waste water is improved.
Examples
Referring to fig. 1, the container body 1 includes an upper cover 11, a lower cover 12, and a middle portion 13, the middle portion 13 is rotatably connected between the upper cover 11 and the lower cover 12, the outer cleaning portion 5 is mounted on an inner wall of the middle portion 13, the outer cleaning portion 5 cleans along a surface of the inner screen drum 3 as the middle portion 13 rotates, and a steel frame 14 is welded between the upper cover 11 and the lower cover 12.
In the above technical scheme, the combination of the upper cover 11 and the lower cover 12 is adopted, and the rotatable middle part 13 is matched, so that the rotation of the middle part 13 is utilized to drive the rotation of the outer cleaning part 5, and the outer surface of the inner screen drum 3 is cleaned.
Examples
Referring to fig. 2 and 3, the outer cleaning portion 4 includes a vertical rod 41, a sleeve rod 42 is disposed at an inner wall of the middle portion 13, a movable rod 43 is disposed in the sleeve rod 42, the movable rod 43 is fixedly connected with the vertical rod 41, a spring 44 is mounted in the sleeve rod 42, the spring 44 acts on the movable rod 43, the vertical rod 41 is displaced toward the inner screen drum 3 under the action of the spring 44, and a cleaning scraping strip 45 is implanted on an end surface of the vertical rod 41 facing the inner screen drum 3.
In normal state, the inner screen drum 3 is kept still, so that the outer cleaning part 4 is not moved when the microspheres are washed and separated, and the middle part 13 can be rotated only when the water passing efficiency of the inner screen drum 3 is insufficient, so that the outer wall of the inner screen drum 3 is cleaned by the rotating outer cleaning part 4.
Examples
Referring to fig. 2 and 4, the inner cleaning portion 5 includes a scraper 51, the end surface of the scraper 51 facing the inner wall of the inner screen drum 3 is a plane, a first scraper bar 52 is implanted at the plane, the end surface of the scraper 51 facing the rotating shaft 2 is an inclined surface 53, the lower end of the inclined surface 53 is inclined away from the rotating shaft 2, along with the ascending of the stirring portion 6, the stirring portion 6 acts on the inclined surface 53 and pushes the scraper 51 toward the inner wall of the inner screen drum 3, a guide bar 221 is disposed at the outer wall of the rotating shaft 2, the guide bar 221 passes through the scraper 51, a limit screw 222 is fitted after the guide bar 221 passes through the scraper 51, a first spring 223 is fitted on the guide bar 221, the first scraper bar 52 acts between the limit screw 222 and the scraper 51, and when the first spring 223 is in an uncompressed state, the gap between the first scraper bar 52 and the inner screen drum 3 is 1 mm-2 mm.
In the above technical solution, under the action of the first spring 223, when the inner screen drum 3 has sufficient water passing efficiency, the first scraping strip 52 is not contacted with the inner screen drum 3, so that the rotation load of the rotating shaft 2 is reduced, and abrasion of the first scraping strip 52 and the inner screen drum 3 is avoided.
Only when the water permeability of the inner screen cylinder 3 is insufficient, the rising of the stirring part 6 forms the pressing of the scraping plate 51, so that the first scraping strip 52 contacts the inner screen cylinder 3, and the cleaning effect of the inner screen cylinder 3 is realized under the rotation effect of the rotating shaft 2.
In order to prevent the scraping plate 51 from being pushed outwards by centrifugal force generated by rotation of the rotating shaft 2, the rotating speed of the rotating shaft 2 is controlled to be 10-40 revolutions per minute.
Examples
Referring to fig. 5 and 6, the stirring portion 6 includes a main body 61, a through hole 62 passing through the rotating shaft 2 is provided at the axial center of the main body 61, a guiding strip 63 is provided at the wall of the through hole 62, a guiding groove 232 engaging with the guiding strip 63 is provided at the outer wall of the rotating shaft 2, a sealed cavity 64 is provided inside the main body 61, and the outer side surface of the main body 61 acts on the scraping plate 51.
In the above-mentioned solution, the buoyancy is provided by the cavity 64, so that the lower portion of the body 61 is immersed in the cleaning solution, and the upper portion is located outside the cleaning solution.
Examples
Referring to fig. 5 and 6, the upper and lower end surfaces of the body 61 are tapered surfaces, and stirring blades 661 are annularly disposed on the upper and lower end surfaces of the body 61.
The upper part of the body 61 is positioned on the water surface, so that the upper stirring blade 661 can disperse the feed, and the lower stirring blade 661 can realize the stirring of the liquid level.
It should be noted that the position of about 10cm below the inner screen drum 3 is not provided with a screen mesh, and a certain liquid level is maintained in the inner screen drum 3 in a state where no microspheres are discharged, so that the stirring blade 661 is prevented from contacting the bottom of the inner screen drum 3 after the body 61 descends.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. A microsphere washing device, characterized in that: comprising the steps of (a) a step of,
the container body (1), a rotating shaft (2) is inserted in the axle center of the container body (1), the rotating shaft (2) is rotationally connected with the container body (1), a bearing and a shaft seal are matched between the rotating shaft (2) and the container body (1), the shaft seal is sealed on the inner side of the bearing, a waste water pipe (121) is arranged at the position, close to the bottom, of the outer wall of the container body (1), a driving unit (9) is arranged on the outer part of the container body (1), a transmission unit (91) is matched between the driving unit (9) and the rotating shaft (2),
an inner screen drum (3), the inner screen drum (3) is fixedly arranged in the container body (1) and is in clearance fit with the container body (1), an injection pipe (101) for injecting microspheres and solution and an air inlet pipe (102) for injecting compressed air are arranged at the upper end of the container body (1), the injection pipe (101) and the air inlet pipe (102) are respectively inserted into the inner screen drum (3) from the top downwards, sieve holes (31) are uniformly distributed on the surface of the inner screen drum (3), the microspheres are reserved in the sieve holes, the waste liquid after washing is discharged to the outside of the inner screen drum (31) through the sieve holes (31), an eduction pipe (32) for educing the microspheres is arranged at the bottom of the inner screen drum (3), the eduction pipe (32) extends to the outside of the container body (1),
an outer cleaning part (4), wherein the outer cleaning part (4) is installed through the container body (1), the outer cleaning part (4) acts on the outer wall of the inner screen drum (3),
an inner cleaning part (5), wherein the inner cleaning part (5) is installed through the rotating shaft (2) and rotates along with the rotating shaft (2),
stirring portion (6), stirring portion (6) have buoyancy, and stirring portion (6) contact interior clean portion (5), along with the come-up of stirring portion (6), interior clean portion (5) are to the direction of keeping away from pivot (2) removal, increase the contact dynamics with interior screen drum (3).
2. The microsphere washing device of claim 1, wherein: a first air inlet pipe (131) is arranged at the upper part of the container body (1), and the first air inlet pipe (131) is positioned at the outer side of the inner screen drum (3).
3. The microsphere washing device of claim 1, wherein: the container body (1) comprises an upper cover (11), a lower cover (12) and a middle part (13), wherein the middle part (13) is rotationally connected between the upper cover (11) and the lower cover (12), the outer cleaning part (5) is installed at the inner wall of the middle part (13), and along with the rotation of the middle part (13), the outer cleaning part (5) is clean along the surface of the inner screen cylinder (3), and a steel frame (14) is welded between the upper cover (11) and the lower cover (12).
4. A microsphere washing device according to claim 3, characterized in that: the outer cleaning part (4) comprises a vertical rod (41), a loop bar (42) is arranged at the inner wall of the middle part (13), a movable bar (43) is arranged in the loop bar (42), the movable bar (43) is fixedly connected with the vertical rod (41), a spring (44) is arranged in the loop bar (42), the spring (44) acts on the movable bar (43), the vertical rod (41) moves towards the direction of the inner screen drum (3) under the action of the spring (44), and a cleaning scraping bar (45) is implanted on one end face of the vertical rod (41) facing the inner screen drum (3).
5. The microsphere washing device of claim 1, wherein: the inner cleaning part (5) comprises a scraping plate (51), the scraping plate (51) faces the inner wall of the inner screen cylinder (3) and is a plane, a first scraping bar (52) is implanted at the plane, the end face of the scraping plate (51) facing the rotating shaft (2) is an inclined surface (53), the lower end of the inclined surface (53) is inclined away from the rotating shaft (2) direction, along with the ascending of the stirring part (6), the stirring part (6) acts on the inclined surface (53), the scraping plate (51) is pushed towards the inner wall of the inner screen cylinder (3), a guide rod (221) is arranged at the outer wall of the rotating shaft (2), the guide rod (221) passes through the scraping plate (51), a limit screw (222) is matched after the guide rod (221) passes through the scraping plate (51), a first spring (223) is assembled on the guide rod (221), the first spring (223) acts on the space between the limit screw (222) and the scraping plate (51), and the first bar (2 mm) is in clearance fit with the inner screen cylinder (52 m when the first spring (223) is in an uncompressed state.
6. The microsphere washing device of claim 1, wherein: the stirring part (6) comprises a body (61), a through hole (62) penetrating through the rotating shaft (2) is formed in the axis of the body (61), a guide strip (63) is arranged at the hole wall of the through hole (62), a guide groove (232) matched with the guide strip (63) is formed in the outer wall of the rotating shaft (2), a sealed cavity (64) is formed in the body (61), and the outer side face of the body (61) acts on the scraping plate (51).
7. The microsphere washing device of claim 1, wherein: the upper end face and the lower end face of the body (61) are conical surfaces, and stirring sheets (661) are annularly arranged at the upper end face and the lower end face of the body (61).
CN202310681189.4A 2023-06-09 2023-06-09 Microsphere washing device Pending CN116689378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310681189.4A CN116689378A (en) 2023-06-09 2023-06-09 Microsphere washing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310681189.4A CN116689378A (en) 2023-06-09 2023-06-09 Microsphere washing device

Publications (1)

Publication Number Publication Date
CN116689378A true CN116689378A (en) 2023-09-05

Family

ID=87823372

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310681189.4A Pending CN116689378A (en) 2023-06-09 2023-06-09 Microsphere washing device

Country Status (1)

Country Link
CN (1) CN116689378A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117482879A (en) * 2023-12-29 2024-02-02 陕西红十月发展有限公司 Mixing kettle for producing antifreeze fluid and production process thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117482879A (en) * 2023-12-29 2024-02-02 陕西红十月发展有限公司 Mixing kettle for producing antifreeze fluid and production process thereof
CN117482879B (en) * 2023-12-29 2024-03-12 陕西红十月发展有限公司 Mixing kettle for producing antifreeze fluid and production process thereof

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