CN117101887A - Novel multifunctional centrifugal concentrating machine and application method thereof - Google Patents
Novel multifunctional centrifugal concentrating machine and application method thereof Download PDFInfo
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- CN117101887A CN117101887A CN202311066051.XA CN202311066051A CN117101887A CN 117101887 A CN117101887 A CN 117101887A CN 202311066051 A CN202311066051 A CN 202311066051A CN 117101887 A CN117101887 A CN 117101887A
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- dredging
- rotary
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 44
- 238000007599 discharging Methods 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 64
- 239000011707 mineral Substances 0.000 claims description 64
- 230000008602 contraction Effects 0.000 claims description 18
- 230000001360 synchronised effect Effects 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 244000309464 bull Species 0.000 claims description 4
- 230000002441 reversible effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/02—Casings; Lids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/06—Arrangement of distributors or collectors in centrifuges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
- B04B15/06—Other accessories for centrifuges for cleaning bowls, filters, sieves, inserts, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/02—Casings; Lids
- B04B7/04—Casings facilitating discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/08—Rotary bowls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/02—Electric motor drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/08—Arrangement or disposition of transmission gearing ; Couplings; Brakes
Landscapes
- Centrifugal Separators (AREA)
Abstract
The invention discloses a novel multifunctional centrifugal concentrator and a use method thereof, and relates to the technical field of centrifugal concentrators, wherein the novel multifunctional centrifugal concentrator comprises a machine case, a feeding pipe, a first discharging pipe, a rotary sleeve, a shielding device and a positioning toggle mechanism; and dredging auxiliary parts. According to the invention, through the cooperation of the parts such as the circular sealing cover and the like, when the heavy material ore is accumulated at the bottom of the rotary drum, the second driving motor is started, the output end of the second driving motor drives the output shaft to drive the circular sealing cover to rotate, so that the discharge hole of the rotary sleeve is opened, the heavy material ore accumulated at the center position of the bottom of the rotary drum can be discharged to the outside through the second discharge pipe, the output end of the second driving motor drives the output shaft to drive the circular sealing cover to rotate for one circle and then stop running, and the accumulated heavy material ore can be timely discharged in the continuous running process through the cooperation of the parts, so that the overall practicability of the device is improved.
Description
Technical Field
The invention relates to the technical field of centrifugal concentrating machines, in particular to a novel multifunctional centrifugal concentrating machine and a using method thereof.
Background
The centrifugal concentrator is one of high-efficiency gravity concentration equipment, is also called a centrifugal chute, has a plurality of centrifugal machines, has basically the same structure, generates great centrifugal force when the centrifugal machines rotate at high speed, strengthens the gravity concentration process, ensures that the fine mineral particles are more effectively recovered, successfully solves the problem of fully recovering the fine mineral particles, and is widely used for recovering mineral mud such as tungsten, tin, iron and the like.
According to the publication number CN214515293U disclosed by the Chinese patent net, the centrifugal concentrator for mineral separation comprises a machine barrel, wherein a rotary drum is arranged in the machine barrel, the middle of the rotary drum is of a hollow structure, a small hole is formed in the side wall of the rotary drum, the bottom of the rotary drum is connected with the upper end of a shaft tube, the lower end of the shaft tube penetrates through the bottom of the machine barrel and is connected with one end of a rotary joint, the other end of the rotary joint is connected with one end of a water supply tube, a second driving wheel is sleeved on the part of the shaft tube below the machine barrel, one side of the second driving wheel is connected with a first driving wheel through a belt, the top of the first driving wheel is connected with a motor, one end of a pumping tube is arranged in the rotary drum in an inserted mode, and the other end of the pumping tube penetrates through the top of the machine barrel and extends to the lower portion of the machine barrel and is connected with a suction pump. This centrifugal concentrator for ore dressing adopts rotary drum and pump material pipe, crossbearer, pneumatic cylinder and suction pump etc. matched with structure for after heavy material ore and the separation of light material ore, the heavy material ore can be by instant suction, need not long time interval, thereby lets machining efficiency higher.
While the above-mentioned rotation is capable of sucking out the heavy mineral from the bottom of the drum, the above-mentioned patent still has the following problems:
(1) In the above patent, when heavy mineral is sucked out from the bottom of the drum, the equipment is often required to stop feeding and then to process, so that the equipment cannot continuously run, and the mineral separation efficiency is reduced;
(2) The raw materials in the patent are easy to be blocked in the process of discharging a plurality of mineral aggregates in the process of circulating in the pipeline, so that the discharging effect is affected.
Disclosure of Invention
The invention aims at: in order to solve the problems that heavy mineral cannot be discharged in time at the bottom of the stacking rotary drum and a discharge pipe is easy to block, the novel multifunctional centrifugal concentrating machine and the using method thereof are provided.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a novel multi-functional centrifugal concentrator, includes the quick-witted case, the inlet pipe is installed on the top of machine case, the first row of material pipe of bin's bin outlet department fixedly connected with, the inboard rotation of machine case is connected with inboard rotation and is connected with rotatory sleeve, rotatory telescopic top fixedly connected with rotary drum, rotatory telescopic bottom fixedly connected with second row of material pipe, the bottom fixedly connected with L shape seat of machine case, the inboard of L shape seat is installed first driving motor, the output of first driving motor is connected with the connecting axle, the connecting axle with a synchronizing wheel is all installed to the outer wall of second row of material pipe, two the hold-in range is installed to the outer wall of synchronizing wheel, rotatory telescopic inboard fixedly connected with connecting sleeve, connecting sleeve's outer wall is provided with the shielding ware, rotatory sleeve's outer wall is provided with the position setting toggle mechanism that mutually support with the shielding ware. The rotary sleeve feeding port is provided with a circular sealing cover, the rotary sleeve is fixedly connected with a protective sleeve, a second driving motor is installed inside the protective sleeve, an output end of the second driving motor is connected with an output shaft, one end of the output shaft penetrates through the protective sleeve and is fixedly connected with the circular sealing cover, and a dredging auxiliary piece extending to the inside of the second discharging pipe is arranged inside the protective sleeve.
As still further aspects of the invention: the shielding device comprises an electric push rod arranged on the inner side of a connecting sleeve, the output end of the electric push rod is connected with a slide rod, one end of the slide rod penetrates through to an outer fixedly connected with connecting ring of the connecting sleeve, a contraction ring is slidably connected on the inner side of the connecting ring, a plurality of contraction springs are fixedly connected on the top end of the contraction ring, and one end of each contraction spring is fixedly connected with the connecting ring.
As still further aspects of the invention: the inner side of the connecting ring is provided with a storage groove matched with the contraction ring, and the inner side of the connecting sleeve is provided with a rectangular groove matched with the sliding rod.
As still further aspects of the invention: the shielding device comprises a rotating sleeve, a connecting sleeve, a conical sealing cover, a hanging frame, a hanging guide wheel, a sliding rope, a connecting sleeve, a sliding rod, a connecting spring and a connecting spring.
As still further aspects of the invention: the inside of the connecting sleeve is provided with a limit chute matched with the sliding block, and the inside of the sliding block is provided with a through hole with the diameter matched with the electric push rod.
As still further aspects of the invention: the dredging auxiliary piece comprises a connecting shaft which is connected to the inner side of the rotary sleeve in a rotating mode, a pinion is fixedly connected to the outer wall of the connecting shaft, the outer wall of the output shaft is located on the second large spur gear which is fixedly connected to the inner side of the protective sleeve, the second large spur gear is meshed with the pinion, a rotary pushing disc is fixedly connected to the bottom of the connecting shaft, a rotary pushing column is fixedly connected to the bottom of the rotary pushing disc, a square frame is sleeved on the outer wall of the rotary pushing column, an auxiliary frame is fixedly connected to the inner side of the square frame, one end of the auxiliary frame penetrates through the connecting frame which is fixedly connected to the outer side of the protective sleeve, a dredging rod is fixedly connected to the bottom of the connecting frame, and a circulating oscillator is arranged on the outer wall of the dredging rod.
As still further aspects of the invention: the circulation oscillator comprises an auxiliary ring fixedly connected with the outer wall of the dredging rod, a third driving motor is installed in the auxiliary ring, the output end of the third driving motor penetrates through the outer portion of the auxiliary ring and is fixedly connected with a dredging sleeve, the inner side of the dredging sleeve is slidably connected with a dredging block, one end of the dredging block is fixedly connected with an auxiliary spring, and one end of the auxiliary spring is fixedly connected with the dredging sleeve.
As still further aspects of the invention: the positioning toggle mechanism comprises a first large spur gear fixedly connected to the top end of the connecting shaft, a swivel is rotatably connected to the outer wall of the rotating sleeve, a toggle rod is fixedly connected to the top of the swivel, and a spur gear ring meshed with the first large spur gear is fixedly connected to the bottom of the swivel.
As still further aspects of the invention: the material stirring rods are arranged in a plurality, and the material stirring rods are distributed around the swivel equidistantly.
The invention also discloses a use method of the novel multifunctional centrifugal concentrator, which comprises the following steps:
s1, a water inlet is formed in the bottom of a rotary drum, a water inlet pipe is arranged at the bottom of a machine case, a gap is reserved between the rotary drum and the bottom end inside the machine case, sealing is carried out between the rotary drum and a first discharge pipe through sealing rubber, and when the output end of a first driving motor drives a connecting shaft to drive a synchronous wheel to rotate, the other synchronous wheel is driven to rotate through a synchronous belt, so that a second discharge pipe is driven to rotate through a rotary sleeve, the rotary drum generates centrifugal force to act on ore entering the rotary drum, and ore dressing is carried out;
s2, when heavy mineral is piled at the bottom of the rotary drum, the second driving motor is started, the output end of the second driving motor drives the output shaft to drive the circular sealing cover to rotate, so that the discharge port of the rotary sleeve is opened, the heavy mineral piled at the central position of the bottom of the rotary drum can be discharged to the outside through the second discharge pipe, the output end of the second driving motor drives the output shaft to drive the circular sealing cover to rotate for one circle and then stop running, and the accumulated heavy mineral can be timely discharged in the continuous running process through the cooperation of the parts, so that the overall practicability of the device is improved;
s3, when heavy mineral is piled at the bottom of the rotary drum, the electric push rod can be intermittently started, the output end of the electric push rod pulls the slide rod to drive the connecting ring to move downwards, when the contraction ring is subjected to resistance, the connecting ring continues to move downwards to extrude the contraction spring, so that the contraction ring can be pressed on the heavy mineral piled at the bottom of the rotary drum, the heavy mineral outside the contraction ring is limited, other mineral materials are prevented from entering the discharge opening of the rotary sleeve in the heavy mineral discharge process, and when the electric push rod stops running, the second driving motor is started;
s4, the output shaft rotates and drives the second large spur gear to rotate, so that the small spur gear is driven to drive the rotary pushing disc to rotate rapidly through the connecting shaft, the rotary pushing column pushes the square frame to pull the auxiliary frame to move transversely and reciprocally, the connecting frame drives the dredging rod to move transversely and reciprocally to dredge the interior of the second discharging pipe, mineral aggregate is prevented from being blocked in the interior of the second discharging pipe, and smoothness of discharging of the second discharging pipe is guaranteed;
s5, when the sliding rod moves downwards, the conical sealing cover is pulled to move upwards through the pulling rope, so that the feeding hole at the top of the rotary sleeve is opened, the steps are operated in the reverse direction, and mineral aggregate can be prevented from continuously entering the rotary sleeve.
S6, in the process of transversely reciprocating the dredging rod, when the dredging block is in contact with mineral aggregate, the auxiliary spring is extruded by the dredging block to slide relative to the dredging sleeve, meanwhile, the third driving motor is started, the output end of the third driving motor drives the dredging sleeve to locally reciprocate, so that the mineral aggregate accumulated in the second discharging pipe can be actively lifted or extruded downwards, and the dredging effect of the dredging rod is improved;
s7, the connecting shaft drives the first large spur gear to synchronously rotate in the rotating process, the spur gear ring drives the rotating ring to rotate through the first large spur gear, and then the stirring rods are driven to circumferentially rotate, ore pressed at the bottom of the shrinkage ring can be stirred to move through the stirring rods, so that ore materials at the bottom of the shrinkage ring can be cleaned away in the discharging process of the rotation sleeve, the shrinkage ring is gradually reset under the action of the shrinkage spring, and the shrinkage ring is used for isolating the heavy material ore at the center of the rotary drum from the outside, so that other ore materials can not be discharged together in the discharging process of the heavy material ore, and the accumulated heavy material ore can be discharged in time in the continuous running process of the equipment.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up the cooperation of parts such as circular sealed lid, when heavy burden ore deposit was piled up in the rotary drum bottom, start second driving motor, second driving motor output drive output shaft drives circular sealed lid and rotates, thereby open rotary sleeve's bin outlet, make the heavy burden ore deposit of piling up in rotary drum bottom central point put can discharge to the external world through the second row material pipe, stop the operation after the second driving motor output drive output shaft drives circular sealed lid rotation round, thereby make equipment in the in-process of continuous operation can in time discharge the heavy burden ore deposit through the cooperation of above a plurality of parts, thereby the holistic practicality of device has been improved;
2. through setting up the shelter, when heavy mineral is piled up in the rotary drum bottom, can intermittently start the electric putter, the electric putter output pulls the slide bar and drives the go-between to move downwards, when the shrink ring receives the resistance, the go-between continues to move downwards and extrudes the shrink spring for the shrink ring can press on the heavy mineral of piling up in the rotary drum bottom, with this limiting the outside heavy mineral of shrink ring, in order to avoid other mineral materials to enter into the rotatory sleeve bin outlet in the heavy mineral discharge process;
3. through setting up dredging auxiliary piece, the output shaft drives the second big straight gear and rotates when rotating to drive the pinion and drive the spiral pushing disc through the connecting axle and rotate fast, promote the back frame through the spiral pushing post and stimulate the auxiliary frame and carry out horizontal reciprocating motion, make the link drive dredge the pole and carry out horizontal reciprocating motion and dredge the inside of second row material pipe, thereby avoid mineral aggregate to block up in the inside of second row material pipe, with this smoothness of having guaranteed the material of second row material pipe row;
4. through setting up the circulation oscillator, the in-process that the mediation pole carries out horizontal reciprocating motion, when mediation piece contacted with the mineral aggregate, the mediation piece extrusion auxiliary spring was slided for the mediation sleeve, starts the third driving motor simultaneously, and the third driving motor output drives the mediation sleeve and carries out the local reciprocal swing to can carry out initiative kick-up or downward extrusion promotion with the mineral aggregate of piling up in the second row material pipe, thereby improved the mediation effect of mediation pole;
5. through setting up the position setting toggle mechanism, the in-process that the connecting axle rotated drives first bull gear and carries out synchronous rotation, drive the spur gear ring through first bull gear and drive the swivel and carry out the rotation, and then drive a plurality of stirring rods and carry out circumferential rotation, can stir the ore of pressing in shrink ring bottom through a plurality of stirring rods and remove, thereby make the rotatory sleeve carry out the in-process that arranges the material be located the mineral aggregate of shrink ring bottom and can be cleaned away, thereby make the shrink ring reset gradually under the effect of shrink spring, thereby make the shrink ring separate the heavy burden ore of rotary drum central part with the external world, so that the in-process that the heavy burden ore was arranged can not make other mineral aggregates discharge together, thereby make equipment in the in-process of continuous operation in time discharge the heavy burden ore of piling up.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the chassis according to the present invention;
FIG. 3 is a schematic view of the internal structure of the drum of the present invention;
FIG. 4 is a schematic view of a rotary sleeve according to the present invention;
FIG. 5 is a cross-sectional view of a rotating sleeve of the present invention;
FIG. 6 is an enlarged view of FIG. 5A in accordance with the present invention;
FIG. 7 is a cross-sectional view of a connecting ring of the present invention;
FIG. 8 is a schematic view of the internal structure of the connecting sleeve according to the present invention;
FIG. 9 is a schematic diagram of a positioning toggle mechanism according to the present invention;
FIG. 10 is a schematic view showing the internal structure of a second discharge pipe according to the present invention;
FIG. 11 is an enlarged view of the portion B of FIG. 10 in accordance with the present invention;
FIG. 12 is a cross-sectional view of a pull through sleeve of the present invention.
In the figure: 1. a chassis; 2. a feed pipe; 3. a first discharge pipe; 4. an L-shaped seat; 5. a first driving motor; 6. a connecting shaft; 7. a second discharge pipe; 8. a rotating drum; 9. a connecting ring; 10. a shrink ring; 11. a synchronizing wheel; 12. a synchronous belt; 13. rotating the sleeve; 14. a connecting sleeve; 15. a slide bar; 16. a conical sealing cover; 17. a swivel; 18. a stirring rod; 19. a retraction spring; 20. a dredging rod; 21. an auxiliary ring; 22. a connecting frame; 23. a spur gear ring; 24. dredging the sleeve; 25. a protective sleeve; 26. a second driving motor; 27. an output shaft; 28. a circular sealing cover; 29. a connecting shaft; 30. a first large spur gear; 31. a pinion gear; 32. a rotary pushing disc; 33. an auxiliary frame; 34. a square frame; 35. an electric push rod; 36. a slide block; 37. pulling the rope; 38. a support; 39. a connecting spring; 40. a hanging frame; 41. hanging a guide wheel; 42. a rotary pushing column; 43. a second large spur gear; 44. dredging blocks; 45. an auxiliary spring; 46. and a third driving motor.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
Referring to fig. 1 to 12, in the embodiment of the invention, a novel multifunctional centrifugal concentrator comprises a machine case 1, wherein a feed pipe 2 is installed at the top end of the machine case 1, a first discharge pipe 3 is fixedly connected to the discharge port of the machine case 1, a rotary sleeve 13 is rotatably connected to the inner side of the machine case 1, a rotary drum 8 is fixedly connected to the top end of the rotary sleeve 13, a second discharge pipe 7 is fixedly connected to the bottom of the rotary sleeve 13, an L-shaped seat 4 is fixedly connected to the bottom end of the machine case 1, a first driving motor 5 is installed on the inner side of the L-shaped seat 4, a connecting shaft 6 is connected to the output end of the first driving motor 5, a synchronous wheel 11 is installed on the outer walls of the connecting shaft 6 and the second discharge pipe 7, synchronous belts 12 are installed on the outer walls of the two synchronous wheels 11, a connecting sleeve 14 is fixedly connected to the inner side of the rotary sleeve 13, a shielding device is arranged on the outer wall of the connecting sleeve 14, and a position-adjusting toggle mechanism matched with the shielding device is arranged on the outer wall of the rotary sleeve 13; the feed inlet department of rotatory sleeve 13 is provided with circular sealed lid 28, and the inside fixedly connected with protection sleeve 25 of rotatory sleeve 13, and the internally mounted of protection sleeve 25 has second driving motor 26, and the output of second driving motor 26 is connected with output shaft 27, and the one end of output shaft 27 runs through to the outside of protection sleeve 25 and circular sealed lid 28 fixed connection, and the inside of protection sleeve 25 is provided with the mediation auxiliary member that extends to the inside of second row material pipe 7.
In this embodiment: the water inlet is formed in the bottom of the rotary drum 8, the water inlet pipe is arranged at the bottom of the machine case 1, a gap is reserved between the rotary drum 8 and the bottom end inside the machine case 1, the rotary drum 8 and the first discharge pipe 3 are sealed through sealing rubber, when the output end of the first driving motor 5 drives the connecting shaft 6 to drive the synchronous wheel 11 to rotate, the synchronous belt 12 drives the other synchronous wheel 11 to rotate, thereby driving the second discharge pipe 7 to drive the rotary drum 8 to rotate through the rotary sleeve 13, the rotary drum 8 generates centrifugal force to act on ore entering the rotary drum 8, ore dressing is carried out, when heavy mineral is accumulated at the bottom of the rotary drum 8, the second driving motor 26 is started, the output end of the second driving motor 26 drives the output shaft 27 to drive the circular sealing cover 28 to rotate, the discharge hole of the rotary sleeve 13 is opened, the heavy mineral accumulated at the center position of the bottom of the rotary drum 8 can be discharged to the outside through the second discharge pipe 7, the output end of the second driving motor 26 drives the circular sealing cover 28 to rotate for one circle, and then the operation is stopped through the cooperation of the plurality of parts, and accordingly the equipment can timely discharge the accumulated heavy mineral in the continuous operation process, and the practicality of the whole device is improved.
Referring to fig. 4 to 8, the shielding device includes an electric push rod 35 mounted on the inner side of a connecting sleeve 14, an output end of the electric push rod 35 is connected with a slide rod 15, one end of the slide rod 15 penetrates through an outer portion of the connecting sleeve 14 and is fixedly connected with a connecting ring 9, an inner side of the connecting ring 9 is slidably connected with a contraction ring 10, a plurality of contraction springs 19 are fixedly connected to the top end of the contraction ring 10, one end of each contraction spring 19 is fixedly connected with the connecting ring 9, a storage groove matched with the contraction ring 10 is formed in the inner side of the connecting ring 9, and a rectangular groove matched with the slide rod 15 is formed in the inner side of the connecting sleeve 14.
In this embodiment: when heavy mineral is piled up at the bottom of the rotary drum 8, the electric push rod 35 can be started intermittently, the output end of the electric push rod 35 pulls the slide rod 15 to drive the connecting ring 9 to move downwards, when the shrinkage ring 10 is subjected to resistance, the connecting ring 9 continues to move downwards to extrude the shrinkage spring 19, so that the shrinkage ring 10 can be pressed on the heavy mineral piled up at the bottom of the rotary drum 8, the heavy mineral outside the shrinkage ring 10 is limited, other mineral aggregates are prevented from entering the discharge port of the rotary sleeve 13 in the heavy mineral aggregate discharge process, and when the electric push rod 35 stops running, the second driving motor 26 is started.
Referring to fig. 4 to 8, the shielding device further includes a sliding block 36 slidably connected to the inner side of the connecting sleeve 14, the outer wall of the sliding block 36 is fixedly connected with a conical sealing cover 16, the conical sealing cover 16 is attached to the top of the discharge hole of the rotating sleeve 13, the inner side of the connecting sleeve 14 is fixedly connected with a hanging frame 40, the inner side of the hanging frame 40 is rotatably connected with a hanging guide wheel 41, the inner side of the connecting sleeve 14 is fixedly connected with a support 38, the top end of the sliding block 36 is fixedly connected with a pulling rope 37, one end of the pulling rope 37 is fixedly connected with a sliding rod 15, the pulling rope 37 is attached to the outer wall of the hanging guide wheel 41, the top end of the sliding block 36 is fixedly connected with a connecting spring 39, one end of the connecting spring 39 is fixedly connected with the support 38, a limiting sliding groove matched with the sliding block 36 is formed in the inner side of the connecting sleeve 14, and a through hole with the diameter of the electric push rod 35 is formed in the inner side of the sliding block 36.
In this embodiment: the sliding rod 15 moves downwards and simultaneously pulls the conical sealing cover 16 to move upwards through the pulling rope 37, so that a feed inlet at the top of the rotary sleeve 13 is opened, and the steps are performed in a reverse direction, so that mineral aggregate can be prevented from continuously entering the rotary sleeve 13 and accumulating at the top of the round sealing cover 28.
Referring to fig. 6, 10 and 11, the dredging auxiliary member includes a connecting shaft 29 rotatably connected to the inner side of the rotating sleeve 13, a pinion 31 is fixedly connected to an outer wall of the connecting shaft 29, a second large spur gear 43 is fixedly connected to an outer wall of the output shaft 27 and located on the inner side of the protecting sleeve 25, the second large spur gear 43 is meshed with the pinion 31, a rotary pushing disc 32 is fixedly connected to a bottom of the connecting shaft 29, a rotary pushing column 42 is fixedly connected to a bottom of the rotary pushing disc 32, a square frame 34 is sleeved on an outer wall of the rotary pushing column 42, an auxiliary frame 33 is fixedly connected to an inner side of the square frame 34, one end of the auxiliary frame 33 penetrates through to an outer portion of the protecting sleeve 25 and is fixedly connected with a connecting frame 22, a dredging rod 20 is fixedly connected to the bottom of the connecting frame 22, and a circulating oscillator is arranged on an outer wall of the dredging rod 20.
In this embodiment: the output shaft 27 rotates and drives the second large spur gear 43 to rotate, so that the small spur gear 31 is driven by the connecting shaft 29 to drive the rotary pushing disc 32 to rotate rapidly, the rotary pushing column 42 pushes the square frame 34 to pull the auxiliary frame 33 to move transversely and reciprocally, the connecting frame 22 drives the dredging rod 20 to move transversely and reciprocally to dredge the inside of the second discharging pipe 7, mineral aggregate is prevented from being blocked inside the second discharging pipe 7, and accordingly smoothness of discharging of the second discharging pipe 7 is guaranteed.
Referring to fig. 12, the circulation oscillator includes an auxiliary ring 21 fixedly connected to the outer wall of the dredging rod 20, a third driving motor 46 is installed in the auxiliary ring 21, an output end of the third driving motor 46 penetrates through the auxiliary ring 21 and is fixedly connected with a dredging sleeve 24, a dredging block 44 is slidably connected to the inner side of the dredging sleeve 24, one end of the dredging block 44 is fixedly connected with an auxiliary spring 45, and one end of the auxiliary spring 45 is fixedly connected with the dredging sleeve 24.
In this embodiment: in the process of transversely reciprocating the dredging rod 20, when the dredging block 44 is in contact with mineral aggregate, the dredging block 44 extrudes the auxiliary spring 45 to slide relative to the dredging sleeve 24, meanwhile, the third driving motor 46 is started, and the output end of the third driving motor 46 drives the dredging sleeve 24 to perform local reciprocating swing, so that mineral aggregate accumulated in the second discharging pipe 7 can be actively lifted or extruded downwards, and the dredging effect of the dredging rod 20 is improved.
Referring to fig. 4 to 6, the positioning toggle mechanism includes a first spur gear 30 fixedly connected to the top end of the connecting shaft 29, a rotating ring 17 rotatably connected to the outer wall of the rotating sleeve 13, a toggle rod 18 fixedly connected to the top of the rotating ring 17, a spur gear ring 23 meshed with the first spur gear 30 fixedly connected to the bottom of the rotating ring 17, a plurality of toggle rods 18, and a plurality of toggle rods 18 distributed equidistantly around the rotating ring 17.
In this embodiment: the connecting shaft 29 drives the first large spur gear 30 to synchronously rotate in the process of rotating, the spur gear 30 drives the spur gear ring 23 to drive the rotating ring 17 to rotate, and then drives the plurality of stirring rods 18 to circumferentially rotate, ore pressed at the bottom of the shrinkage ring 10 can be stirred through the plurality of stirring rods 18 to move, so that ore materials at the bottom of the shrinkage ring 10 can be cleaned away in the process of discharging the rotation sleeve 13, the shrinkage ring 10 is gradually reset under the action of the shrinkage spring 19, the shrinkage ring 10 is used for isolating the heavy ore at the center part of the rotary drum 8 from the outside, other ore materials can not be discharged together in the process of discharging the heavy ore materials, and the equipment can timely discharge accumulated heavy ore materials in the continuous operation process.
The following provides a novel multifunctional centrifugal concentrator and a use method thereof by combining the novel multifunctional centrifugal concentrator, and the method specifically comprises the following steps:
s1, a water inlet is formed in the bottom of a rotary drum 8, a water inlet pipe is arranged at the bottom of a machine case 1, a gap is reserved between the rotary drum 8 and the bottom end inside the machine case 1, the rotary drum 8 and a first discharge pipe 3 are sealed through sealing rubber, when an output end of a first driving motor 5 drives a connecting shaft 6 to drive a synchronous wheel 11 to rotate, a synchronous belt 12 drives another synchronous wheel 11 to rotate, and accordingly a second discharge pipe 7 is driven to rotate through a rotary sleeve 13, centrifugal force is generated by the rotary drum 8 to act on ore entering the rotary drum 8, and ore dressing is performed;
s2, when heavy material ores are piled up at the bottom of the rotary drum 8, a second driving motor 26 is started, an output end of the second driving motor 26 drives an output shaft 27 to drive a circular sealing cover 28 to rotate, so that a discharge hole of a rotary sleeve 13 is opened, the heavy material ores piled up at the center of the bottom of the rotary drum 8 can be discharged to the outside through a second discharge pipe 7, the output end of the second driving motor 26 drives the output shaft 27 to drive the circular sealing cover 28 to rotate for one circle and then stop running, and the piled heavy material ores can be timely discharged in the continuous running process by the cooperation of the parts, so that the overall practicability of the device is improved;
s3, when heavy mineral is piled up at the bottom of the rotary drum 8, the electric push rod 35 can be intermittently started, the output end of the electric push rod 35 pulls the slide rod 15 to drive the connecting ring 9 to move downwards, when the shrinkage ring 10 is subjected to resistance, the connecting ring 9 continues to move downwards to squeeze the shrinkage spring 19, so that the shrinkage ring 10 can be pressed on the heavy mineral piled up at the bottom of the rotary drum 8, the heavy mineral outside the shrinkage ring 10 is limited, other mineral materials are prevented from entering a discharge hole of the rotary sleeve 13 in the heavy mineral discharge process, and when the electric push rod 35 stops running, the second driving motor 26 is started;
s4, the output shaft 27 rotates and drives the second large spur gear 43 to rotate, so that the small spur gear 31 is driven to drive the rotary pushing disc 32 to rotate rapidly through the connecting shaft 29, the rotary pushing column 42 pushes the return frame 34 to pull the auxiliary frame 33 to move transversely and reciprocally, the connecting frame 22 drives the dredging rod 20 to move transversely and reciprocally to dredge the interior of the second discharging pipe 7, mineral aggregate is prevented from being blocked in the interior of the second discharging pipe 7, and smoothness of discharging of the second discharging pipe 7 is guaranteed;
s5, when the slide bar 15 moves downwards, the conical sealing cover 16 is pulled to move upwards through the pulling rope 37, so that a feed inlet at the top of the rotary sleeve 13 is opened, and the steps are performed in a reverse mode, so that mineral aggregate can be prevented from continuously entering the rotary sleeve 13.
S6, in the process of transversely reciprocating the dredging rod 20, when the dredging block 44 is in contact with mineral aggregate, the dredging block 44 extrudes the auxiliary spring 45 to slide relative to the dredging sleeve 24, and meanwhile, the third driving motor 46 is started, and the output end of the third driving motor 46 drives the dredging sleeve 24 to locally reciprocate, so that the mineral aggregate accumulated in the second discharging pipe 7 can be actively lifted or extruded downwards, and the dredging effect of the dredging rod 20 is improved;
s7, the connecting shaft 29 drives the first large spur gear 30 to synchronously rotate in the rotating process, the spur gear 30 drives the spur gear ring 23 to drive the swivel 17 to rotate, and then drives the plurality of stirring rods 18 to circumferentially rotate, ore pressed at the bottom of the shrinkage ring 10 can be stirred and moved through the plurality of stirring rods 18, so that ore materials at the bottom of the shrinkage ring 10 can be cleaned away in the discharging process of the rotary sleeve 13, the shrinkage ring 10 is gradually reset under the action of the shrinkage spring 19, the shrinkage ring 10 is used for isolating the heavy ore at the center of the rotary drum 8 from the outside, other ore materials can not be discharged together in the discharging process of the heavy ore materials, and the accumulated heavy ore can be discharged in time in the continuous running process of the equipment.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a novel multifunctional centrifugal concentrator, includes quick-witted case (1), its characterized in that, inlet pipe (2) are installed on the top of machine case (1), the first row of material pipe (3) of bin (1) discharge gate department fixedly connected with, the inboard rotation of machine case (1) is connected with inboard rotation and is connected with rotatory sleeve (13), the top fixedly connected with rotary drum (8) of rotatory sleeve (13), the bottom fixedly connected with second row material pipe (7) of rotatory sleeve (13), the bottom fixedly connected with L shape seat (4) of machine case (1), first driving motor (5) are installed to the inboard of L shape seat (4), the output of first driving motor (5) is connected with connecting axle (6), connecting axle (6) with the outer wall of second row material pipe (7) all installs a synchronizing wheel (11), and both synchronizing wheel (11) are installed to the outer wall, the inboard fixedly connected with connecting sleeve (14) of rotatory sleeve (13), the outer wall setting up of connecting sleeve (14) is equipped with the rotatory sleeve (13) of stirring mechanism and is mutually matched with one another and is covered the outer wall setting up;
the rotary sleeve (13) is characterized in that a circular sealing cover (28) is arranged at a feeding hole of the rotary sleeve (13), a protection sleeve (25) is fixedly connected to the inside of the rotary sleeve (13), a second driving motor (26) is arranged in the protection sleeve (25), an output end of the second driving motor (26) is connected with an output shaft (27), one end of the output shaft (27) penetrates through the outside of the protection sleeve (25) and is fixedly connected with the circular sealing cover (28), and a dredging auxiliary piece extending to the inside of the second discharging pipe (7) is arranged in the protection sleeve (25).
2. The novel multifunctional centrifugal concentrator according to claim 1, wherein the shielding device comprises an electric push rod (35) mounted on the inner side of the connecting sleeve (14), the output end of the electric push rod (35) is connected with a slide rod (15), one end of the slide rod (15) penetrates through to the connecting sleeve (14) and is fixedly connected with a connecting ring (9), the inner side of the connecting ring (9) is slidably connected with a contraction ring (10), the top end of the contraction ring (10) is fixedly connected with a plurality of contraction springs (19), and one end of each contraction spring (19) is fixedly connected with the connecting ring (9).
3. A novel multifunctional centrifugal concentrator according to claim 2, characterized in that the inner side of the connecting ring (9) is provided with a storage groove matched with the shrink ring (10), and the inner side of the connecting sleeve (14) is provided with a rectangular groove matched with the slide bar (15).
4. A novel multifunctional centrifugal concentrator according to claim 2, characterized in that the shielding device further comprises a sliding block (36) which is slidingly connected with the inner side of the connecting sleeve (14), the outer wall of the sliding block (36) is fixedly connected with a conical sealing cover (16), the conical sealing cover (16) is attached to the top of the discharge hole of the rotating sleeve (13), a hanging frame (40) is fixedly connected with the inner side of the connecting sleeve (14), a hanging guide wheel (41) is rotatably connected with the inner side of the hanging frame (40), a support (38) is fixedly connected with the inner side of the connecting sleeve (14), the top end of the sliding block (36) is fixedly connected with a pulling rope (37), one end of the pulling rope (37) is fixedly connected with the sliding rod (15), the pulling rope (37) is attached to the outer wall of the hanging guide wheel (41), the top end of the sliding block (36) is located on the outer side of the pulling rope (37) and is fixedly connected with a connecting spring (39), and one end of the connecting spring (39) is fixedly connected with the support (38).
5. The novel multifunctional centrifugal concentrator according to claim 4, wherein a limit chute matched with the sliding block (36) is formed on the inner side of the connecting sleeve (14), and a through hole with the diameter matched with the electric push rod (35) is formed on the inner side of the sliding block (36).
6. The novel multifunctional centrifugal concentrator according to claim 4, wherein the dredging auxiliary member comprises a connecting shaft (29) which is rotatably connected to the inner side of the rotary sleeve (13), a small spur gear (31) is fixedly connected to the outer wall of the connecting shaft (29), a second large spur gear (43) is fixedly connected to the outer wall of the output shaft (27) and positioned on the inner side of the protective sleeve (25), the second large spur gear (43) is meshed with the small spur gear (31), a rotary pushing disc (32) is fixedly connected to the bottom of the connecting shaft (29), a rotary pushing column (42) is fixedly connected to the bottom of the rotary pushing disc (32), a square frame (34) is sleeved on the outer wall of the rotary pushing column (42), an auxiliary frame (33) is fixedly connected to the inner side of the square frame (34), one end of the auxiliary frame (33) penetrates through to an outer fixedly connected with a connecting frame (22) of the protective sleeve (25), a rod (20) is fixedly connected to the bottom of the connecting frame (22), and a dredging circulating rod (20) is arranged on the outer wall of the dredger.
7. The novel multifunctional centrifugal concentrator according to claim 6, wherein the circulating oscillator comprises an auxiliary ring (21) fixedly connected to the outer wall of the dredging rod (20), a third driving motor (46) is installed in the auxiliary ring (21), an output end of the third driving motor (46) penetrates through to the outer portion of the auxiliary ring (21) and is fixedly connected with a dredging sleeve (24), a dredging block (44) is slidably connected to the inner side of the dredging sleeve (24), an auxiliary spring (45) is fixedly connected to one end of the dredging block (44), and one end of the auxiliary spring (45) is fixedly connected with the dredging sleeve (24).
8. The novel multifunctional centrifugal concentrator according to claim 6, wherein the positioning toggle mechanism comprises a first bull gear (30) fixedly connected to the top end of the connecting shaft (29), a rotating ring (17) is rotatably connected to the outer wall of the rotating sleeve (13), a toggle rod (18) is fixedly connected to the top of the rotating ring (17), and a spur gear ring (23) meshed with the first bull gear (30) is fixedly connected to the bottom of the rotating ring (17).
9. A new multifunctional centrifugal concentrator according to claim 8, characterized in that said deflector rods (18) are provided in plurality, a plurality of said deflector rods (18) being equidistantly distributed around said swivel (17).
10. A method of using a novel multifunctional centrifugal concentrator, characterized in that a novel multifunctional centrifugal concentrator according to any one of claims 1-9 is used, comprising the steps of:
s1, a water inlet is formed in the bottom of a rotary drum (8), a water inlet pipe is arranged at the bottom of a machine case (1), a gap is reserved between the rotary drum (8) and the bottom end inside the machine case (1), the rotary drum (8) and the first discharge pipe (3) are sealed through sealing rubber, when the output end of a first driving motor (5) drives a connecting shaft (6) to drive a synchronous wheel (11) to rotate, the other synchronous wheel (11) is driven to rotate through a synchronous belt (12), so that a second discharge pipe (7) is driven to rotate through a rotary sleeve (13), and centrifugal force is generated by the rotary drum (8) to act on ore entering the rotary drum (8), so that ore dressing is performed;
s2, when heavy mineral is piled up at the bottom of the rotary drum (8), the second driving motor (26) is started, the output end of the second driving motor (26) drives the output shaft (27) to drive the circular sealing cover (28) to rotate, so that a discharge hole of the rotary sleeve (13) is opened, the heavy mineral piled up at the center of the bottom of the rotary drum (8) can be discharged to the outside through the second discharge pipe (7), the output end of the second driving motor (26) drives the output shaft (27) to drive the circular sealing cover (28) to rotate for one circle and then stop running, and the piled heavy mineral can be timely discharged in the continuous running process through the cooperation of the parts, so that the overall practicability of the device is improved;
s3, when heavy mineral is piled up at the bottom of the rotary drum (8), the electric push rod (35) can be intermittently started, the output end of the electric push rod (35) pulls the slide rod (15) to drive the connecting ring (9) to move downwards, when the shrinkage ring (10) is subjected to resistance, the connecting ring (9) continues to move downwards to extrude the shrinkage spring (19), so that the shrinkage ring (10) can be pressed on the heavy mineral piled up at the bottom of the rotary drum (8), the heavy mineral outside the shrinkage ring (10) is limited, other mineral materials are prevented from entering a discharge port of the rotary sleeve (13) in the process of discharging the heavy mineral, and when the electric push rod (35) stops running, the second driving motor (26) is started;
s4, the output shaft (27) rotates and drives the second large spur gear (43) to rotate, so that the small spur gear (31) is driven by the connecting shaft (29) to drive the rotary pushing disc (32) to rotate rapidly, the rotary pushing column (42) pushes the square frame (34) to pull the auxiliary frame (33) to move transversely and reciprocally, the connecting frame (22) drives the dredging rod (20) to move transversely and reciprocally to dredge the second discharging pipe (7), and mineral aggregate is prevented from being blocked in the second discharging pipe (7), so that the smoothness of discharging of the second discharging pipe (7) is ensured;
s5, when the sliding rod (15) moves downwards, the conical sealing cover (16) is pulled to move upwards through the pulling rope (37), so that a feed inlet at the top of the rotary sleeve (13) is opened, and the steps are performed in a reverse mode, so that mineral aggregate can be prevented from continuously entering the rotary sleeve (13);
s6, in the process of transversely reciprocating the dredging rod (20), when the dredging block (44) is in contact with mineral aggregate, the dredging block (44) extrudes the auxiliary spring (45) to slide relative to the dredging sleeve (24), meanwhile, the third driving motor (46) is started, and the output end of the third driving motor (46) drives the dredging sleeve (24) to locally reciprocate, so that the mineral aggregate accumulated in the second discharging pipe (7) can be actively lifted or extruded downwards, and the dredging effect of the dredging rod (20) is improved;
s7, the connecting shaft (29) drives the first large spur gear (30) to synchronously rotate in the process of rotating, the spur gear ring (23) is driven by the first large spur gear (30) to drive the rotating ring (17) to rotate, a plurality of stirring rods (18) are driven to circumferentially rotate, ores pressed at the bottom of the shrinkage ring (10) can be stirred to move through the stirring rods (18), so that ore materials at the bottom of the shrinkage ring (10) can be cleaned away in the process of discharging by the rotating sleeve (13), the shrinkage ring (10) can be gradually reset under the action of the shrinkage spring (19), so that the shrinkage ring (10) isolates the heavy ore at the center part of the rotary drum (8) from the outside, and other ore materials can not be discharged together in the process of discharging the heavy ore, so that equipment can timely discharge the accumulated heavy ore in the continuous operation process.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117815765A (en) * | 2024-03-05 | 2024-04-05 | 利安隆（天津）制药有限公司 | A purification distillation integrated device for vitamin K2 |
| CN119267567A (en) * | 2024-12-11 | 2025-01-07 | 江苏恒大风机有限公司 | A fire damper for flue smoke exhaust |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117815765A (en) * | 2024-03-05 | 2024-04-05 | 利安隆（天津）制药有限公司 | A purification distillation integrated device for vitamin K2 |
| CN117815765B (en) * | 2024-03-05 | 2024-05-07 | 利安隆（天津）制药有限公司 | A purification distillation integrated device for vitamin K2 |
| CN119267567A (en) * | 2024-12-11 | 2025-01-07 | 江苏恒大风机有限公司 | A fire damper for flue smoke exhaust |
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