CN112473899A - Broken sieving mechanism of material for chemical industry - Google Patents
Broken sieving mechanism of material for chemical industry Download PDFInfo
- Publication number
- CN112473899A CN112473899A CN202011254227.0A CN202011254227A CN112473899A CN 112473899 A CN112473899 A CN 112473899A CN 202011254227 A CN202011254227 A CN 202011254227A CN 112473899 A CN112473899 A CN 112473899A
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- Prior art keywords
- fixedly connected
- gear
- push rod
- vertical shaft
- plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/02—Disintegrating by knives or other cutting or tearing members which chop material into fragments with reciprocating knives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/02—Disintegrating by knives or other cutting or tearing members which chop material into fragments with reciprocating knives
- B02C18/04—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/282—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens their jigging movement being a closed or open curvilinear path in a plane perpendicular to the plane of the screen and parrallel or transverse to the direction of conveyance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
Abstract
The invention discloses a chemical material crushing and screening device which comprises a first top plate and a second top plate which are integrally formed, wherein an electric push rod is fixedly arranged at the lower end of the first top plate, the telescopic end of the electric push rod is rotatably connected with a push rod, a first gear is coaxially and fixedly connected onto the push rod, an installation plate is fixedly connected onto the lower end of the push rod, a cutter is fixedly arranged at the lower end of the installation plate, a crushing frame is arranged below the installation plate, a sealing plate is fixedly connected onto the inner wall of the lower end of the crushing frame, the center of the lower end of the sealing plate is rotatably connected with a sieve plate through a rotating shaft, a plurality of upper discharge holes and a plurality of lower discharge holes are uniformly formed in the sealing plate and the sieve plate respectively, and the positions of. Has the advantages that: according to the invention, the cutting effect is improved under the condition of smaller number of the driving sources, and the raw materials are screened twice after being cut, so that the screened raw materials are collected, the integration degree of the device is high, and the equipment resources are saved.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a chemical material crushing and screening device.
Background
In the chemical industry, the raw materials are generally broken into smaller particles by using a device so as to increase the contact area with reactants and improve the reaction efficiency between the raw materials. The existing device has low crushing efficiency on the raw materials, and other devices are additionally used for screening subsequently, so that the process is complicated and troublesome.
In order to solve the problems, a chemical material crushing and screening device is provided.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a chemical material crushing and screening device.
In order to achieve the purpose, the invention adopts the following technical scheme: a chemical material crushing and screening device comprises a first top plate and a second top plate which are integrally formed, wherein an electric push rod is fixedly arranged at the lower end of the first top plate, the telescopic end of the electric push rod is rotatably connected with a push rod, a first gear is coaxially and fixedly connected onto the push rod, a mounting plate is fixedly connected onto the lower end of the push rod, a cutter is fixedly arranged at the lower end of the mounting plate, a crushing frame is arranged below the mounting plate, a sealing plate is fixedly connected onto the inner wall of the lower end of the crushing frame, a sieve plate is rotatably connected onto the center of the lower end of the sealing plate through a rotating shaft, a plurality of upper discharge holes and a plurality of lower discharge holes are respectively and uniformly arranged on the sealing plate and the sieve plate, the upper discharge holes and the lower discharge holes are in one-to-one correspondence, a first vertical shaft is rotatably connected onto the lower end of the second top plate, a, the first vertical shaft is in transmission connection with the rotating shaft belt, the rotating shaft and the first vertical shaft are jointly and rotatably sleeved with a material guide plate below the sieve plate, the cross section of the material guide plate is arc-shaped and is arranged in a manner of inclining from low left to high right, the lower end of the second top plate is provided with a motor, a reciprocating action mechanism is arranged between the second top plate and the motor, the output end of the motor is fixedly connected with the second vertical shaft, the second vertical shaft is coaxially and fixedly sleeved with a third gear meshed with the second gear, a collecting hopper is arranged below the crushing frame, the upper end of the collecting hopper is fixedly connected with a blanking hopper at the lower end of the material guide plate, a screening frame is arranged in the collecting hopper, the inner wall of the screening frame is fixedly connected with a screen mesh, the two sides of the screening frame are fixedly connected with slide bars, the inner wall of the collecting hopper is provided with a second chute in sliding connection with the slide bars, and the inner walls of the screening frame and the collecting hopper are jointly, the lower end of the second vertical shaft extends into the collecting hopper and is fixedly connected with a cam, and the cam is in contact connection with the screening frame.
In the chemical material crushing and screening device, the cutter is formed by vertically and alternately arranging a plurality of transverse cutters and a plurality of longitudinal cutters.
In the chemical material crushing and screening device, the first vertical shaft and the rotating shaft are respectively coaxially and fixedly sleeved with a first belt pulley and a second belt pulley at corresponding positions, and the first belt pulley and the second belt pulley are jointly tensioned and sleeved with a synchronous belt.
In foretell broken sieving mechanism of material for chemical industry, reciprocating motion mechanism is including seting up the activity chamber in the second roof, first spout has been seted up to the inner diapire in activity chamber, sliding connection has the crosshead shoe in the first spout, and the lower extreme and the motor fixed connection of crosshead shoe, the crosshead shoe is located one side fixedly connected with permanent magnetism piece that moves about the intracavity, one side inner wall fixed mounting in activity chamber has the electromagnetic block who repels the setting with the permanent magnetism piece mutually, the opposite side inner wall in activity chamber and the first spring of the common fixedly connected with of permanent magnetism piece.
In the chemical material crushing and screening device, the thickness of the first gear is larger than the thickness of the second gear and the third gear.
In the chemical material crushing and screening device, the collecting box is arranged below the discharge end of the collecting hopper.
Compared with the prior art, this broken sieving mechanism of material for chemical industry's advantage lies in:
1. set up reciprocal action mechanism and drive the motor, the second vertical axis, the periodic reciprocating motion of third gear at the horizontal direction, the action is rapid, when third gear and second gear meshing, the motor is through the third gear of meshing in proper order, the second gear, first gear drives the push rod and rotates, and then changes the cutting angle of cutterbar, the cutterbar alright change cutting angle after cutting each time, improve cutting efficiency, drive first vertical axis and rotate, first vertical axis drives the pivot through the belt drive and rotates, make the last discharge opening on the shrouding correspond with the lower discharge opening on the sieve is crisscross, the raw materials falls out.
2. No matter whether the second gear meshes with the third gear, the motor drives the second vertical shaft and the cam connected with the second vertical shaft to rotate, the screening frame is always in contact with the cam under the elastic force of the second spring, the screening frame is driven to do reciprocating linear motion under the combined action of the second spring and the cam, the sliding strip slides in the second sliding groove in a reciprocating mode, and the screened raw materials fall out through the screen and are collected by the collecting box.
3. According to the invention, the cutting effect is improved under the condition of smaller number of the driving sources, and the raw materials are screened twice after being cut, so that the screened raw materials are collected, the integration degree of the device is high, and the equipment resources are saved.
Drawings
Fig. 1 is a schematic structural diagram of a chemical material crushing and screening device provided by the invention;
FIG. 2 is a partially enlarged schematic view of FIG. 1;
FIG. 3 is a perspective view of a collecting hopper of the chemical material crushing and screening device according to the present invention;
FIG. 4 is a schematic structural diagram of a mounting plate of the chemical material crushing and screening apparatus according to the present invention;
fig. 5 is a schematic structural diagram of a side surface of a material guide plate of the chemical material crushing and screening device provided by the invention.
In the figure: 1 first top plate, 2 second top plates, 3 crushing frames, 4 electric push rods, 5 push rods, 6 first gears, 7 mounting plates, 8 cutters, 9 sealing plates, 91 upper discharge holes, 10 sieve plates, 101 lower discharge holes, 11 first vertical shafts, 12 second gears, 13 first belt wheels, 14 second belt wheels, 15 synchronous belts, 16 material guide plates, 17 motors, 18 third gears, 19 second vertical shafts, 20 cams, 21 cross sliding blocks, 22 first sliding grooves, 23 movable cavities, 24 electromagnetic blocks, 25 permanent magnetic blocks, 26 screening frames, 27 screen meshes, 28 sliding strips, 29 second sliding grooves, 30 second springs, 31 collecting hoppers, 32 blanking hoppers and 33 collecting boxes.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1-5, a chemical material crushing and screening device comprises a first top plate 1 and a second top plate 2 which are integrally formed, wherein an electric push rod 4 is fixedly installed at the lower end of the first top plate 1, a push rod 5 is rotatably connected to the telescopic end of the electric push rod 4, a first gear 6 is coaxially and fixedly connected to the push rod 5, the thickness of the first gear 6 is larger than the thicknesses of a second gear 12 and a third gear 18, the first gear 6 is always meshed with the second gear 12 in the up-and-down movement process, a mounting plate 7 is fixedly connected to the lower end of the push rod 5, a cutter 8 is fixedly installed at the lower end of the mounting plate 7, the cutter 8 is formed by vertically and alternately arranging a plurality of cross cutters and a plurality of longitudinal cutters, it should be noted that the size of a square cutting opening formed by the plurality of cross cutters and the plurality of longitudinal cutters is slightly larger, the situation that a raw material is clamped in the cutting opening cannot occur, the efficiency is better.
A crushing frame 3 is arranged below the mounting plate 7, a sealing plate 9 is fixedly connected to the inner wall of the lower end of the crushing frame 3, a sieve plate 10 is rotatably connected to the center of the lower end of the sealing plate 9 through a rotating shaft, a plurality of upper discharging holes 91 and a plurality of lower discharging holes 101 are respectively and uniformly arranged on the sealing plate 9 and the sieve plate 10, the upper discharging holes 91 are in one-to-one correspondence with the positions of the lower discharging holes 101, the upper discharging holes 91 and the lower discharging holes 101 are in correspondence with each other at a certain time position in the process that the second gear 12 is meshed with the third gear 18, so that raw materials fall out through the upper discharging holes 91 and the lower discharging holes 101, a first vertical shaft 11 is rotatably connected to the lower end of the second top plate 2, a second gear 12 meshed with the first gear 6 is coaxially and fixedly sleeved on the first vertical shaft 11, the first vertical shaft 11 is in transmission connection with the rotating shaft belt, a first belt pulley 13 and a second belt pulley 14 are coaxially, the first belt pulley 13 and the second belt pulley 14 are jointly tensioned and sleeved with a synchronous belt 15, and the first vertical shaft 11 transmits torque to the rotating shaft through the first belt pulley 13, the second belt pulley 14 and the synchronous belt 15.
The rotating shaft and the first vertical shaft 11 are jointly rotatably sleeved with a material guide plate 16 below the sieve plate 10, the cross section of the material guide plate 16 is arc-shaped and is arranged in a manner that the material is inclined from low left to high right, so that the situation that the material falls into the collecting hopper 31 directly without being screened by the screening frame 26 due to random falling of the material is avoided, the lower end of the second top plate 2 is provided with a motor 17, a reciprocating action mechanism is arranged between the second top plate 2 and the motor 17, the reciprocating action mechanism comprises a movable cavity 23 arranged in the second top plate 2, the inner bottom wall of the movable cavity 23 is provided with a first sliding chute 22, the first sliding chute 22 is connected with a cross slide block 21 in a sliding way, the lower end of the crosshead shoe 21 is fixedly connected with the motor 17, one side of the crosshead shoe 21 positioned in the movable cavity 23 is fixedly connected with a permanent magnet 25, the inner wall of one side of the movable cavity 23 is fixedly provided with an electromagnetic block 24 which is repelled with the permanent magnet 25, and the inner wall of the other side of the movable cavity 23 and the permanent magnet 25 are fixedly connected with a first spring together;
a second vertical shaft 19 is fixedly connected with the output end of the motor 17, a third gear 18 meshed with the second gear 12 is coaxially and fixedly sleeved on the second vertical shaft 19, a collecting hopper 31 is arranged below the crushing frame 3, a blanking hopper 32 is fixedly connected with the upper end of the collecting hopper 31 and the lower end of the material guide plate 16, a screening frame 26 is arranged in the collecting hopper 31, a screen 27 is fixedly connected with the inner wall of the screening frame 26, sliding strips 28 are fixedly connected with both sides of the screening frame 26, a second sliding chute 29 in sliding connection with the sliding strips 28 is arranged on the inner wall of the collecting hopper 31, a plurality of second springs 30 are fixedly connected with the inner walls of the screening frame 26 and the collecting hopper 31 together, the lower end of the second vertical shaft 19 extends into the collecting hopper 31 and is fixedly connected with a cam 20, and the cam 20 is contacted and connected with the screening frame 26, a collecting box 33 is arranged below the discharge end of the collecting hopper 31, and the collecting box 33 can collect the screened raw materials.
The working principle of the invention is as follows:
the electromagnetic block 24 of the present invention is electrically connected with an electric control device, the electric control device can periodically electrify/cut off the electromagnetic block 24, as described with reference to fig. 1, when the electromagnetic block 24 is electrified, magnetic repulsion force is generated on the permanent magnet 25, the crosshead 21 and the motor 17 are pushed to slide towards the right, the third gear 18 is separated from the second gear 12, the first spring is compressed, when the electromagnetic block 24 is cut off, the electromagnetic block 24 does not generate magnetic repulsion force on the permanent magnet 25 any more, the crosshead 21 and the motor 17 slide towards the left under the elastic force restored by the first spring, and the third gear 18 is meshed with the second gear 12.
When the third gear 18 is separated from the second gear 12, the electric push rod 4 completes a telescopic action, the mounting plate 7 and the cutter 8 are pushed downwards, the cutter 8 can cut and crush the raw material at the upper end of the sealing plate 9, at the moment, the upper discharge hole 91 on the sealing plate 9 is completely staggered with the lower discharge hole 101 on the sieve plate 10, the material cannot leak out, after single cutting, the mounting plate 7 and the cutter 8 reset, and because the thickness of the first gear 6 is greater than that of the second gear 12, in the process, the first gear 6 and the second gear 12 are always in a meshed state;
when the third gear 18 is engaged with the second gear 12, the motor 17 drives the push rod 5 to rotate by a certain angle through the third gear 18, the second gear 12 and the first gear 6 which are sequentially engaged, the positions of the upper discharge hole 91 and the lower discharge hole 101 are aligned, the mounting plate 7 connected with the push rod 5 and the cutter 8 are driven to rotate by a certain angle so as to change the position of the cutter 8 relative to the sealing plate 9 and change the cutting angle of the cutter 8, the first vertical shaft 11 drives the rotating shaft to rotate through belt transmission, so that the upper discharge hole 91 and the lower discharge hole 101 are aligned at a certain time, raw materials meeting the particle requirement leak out and fall into the blanking hopper 32 under the guidance of the material guide plate 16, and then fall into the screening frame 26 in the collecting hopper 31;
no matter whether the second gear 12 is meshed with the third gear 18 or not, the motor 17 drives the second vertical shaft 19 and the cam 20 connected with the second vertical shaft to rotate, the screening frame 26 is always contacted with the cam 20 under the elastic force of the second spring 30, the screening frame 26 is driven to do reciprocating linear motion under the combined action of the second spring 30 and the cam 20, the sliding strip 28 slides in the second sliding groove 29 in a reciprocating mode, and the screened raw materials fall out through the screen mesh 27 again and are collected by the collecting box 33.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a broken sieving mechanism of material for chemical industry, includes integrated into one piece's first roof (1) and second roof (2), its characterized in that, the lower extreme fixed mounting of first roof (1) has electric putter (4), the flexible end of electric putter (4) rotates and is connected with push rod (5), coaxial fixedly connected with first gear (6) on push rod (5), the lower extreme fixedly connected with mounting panel (7) of push rod (5), the lower extreme fixed mounting of mounting panel (7) has cutterbar (8), the below of mounting panel (7) is equipped with broken frame (3), the lower extreme inner wall fixedly connected with shrouding (9) of broken frame (3), the lower extreme center of shrouding (9) rotates through the pivot and is connected with sieve (10), evenly seted up a plurality of upper discharge opening (91) and a plurality of lower discharge opening (101) respectively on shrouding (9) and sieve (10), the positions of the upper discharging holes (91) correspond to the positions of the lower discharging holes (101) one by one, the lower end of the second top plate (2) is rotatably connected with a first vertical shaft (11), a second gear (12) meshed with the first gear (6) is coaxially and fixedly sleeved on the first vertical shaft (11), the first vertical shaft (11) is in transmission connection with a rotating shaft belt, the rotating shaft and the first vertical shaft (11) are jointly and rotatably sleeved with a material guide plate (16) below the sieve plate (10), the cross section of the material guide plate (16) is arc-shaped and is obliquely arranged in a manner that the left part is lower than the right part, the lower end of the second top plate (2) is provided with a motor (17), a reciprocating motion mechanism is arranged between the second top plate (2) and the motor (17), the output end of the motor (17) is fixedly connected with a second vertical shaft (19), a third gear (18) meshed with the second gear (12) is coaxially and fixedly sleeved on the second vertical shaft (19), the below of broken frame (3) is equipped with collects and fights (31), the upper end of collecting and fighting (31) and at lower extreme fixedly connected with blanking fill (32) of stock guide (16), be equipped with screening frame (26) in collecting and fighting (31), the inner wall fixedly connected with screen cloth (27) of screening frame (26), the equal fixedly connected with draw runner (28) in both sides of screening frame (26), the inner wall of collecting and fighting (31) is seted up with draw runner (28) sliding connection's second spout (29), a plurality of second springs (30) of the common fixedly connected with of inner wall of screening frame (26) and collecting and fighting (31), the lower extreme of second vertical axis (19) extends to and collects and fights (31) in and fixedly connected with cam (20), and cam (20) and screening frame (26) contact connection.
2. The chemical material crushing and screening device according to claim 1, wherein the cutter (8) is composed of a plurality of cross cutters and a plurality of longitudinal cutters which are vertically staggered.
3. The chemical material crushing and screening device according to claim 1, wherein the first vertical shaft (11) and the rotating shaft are respectively coaxially and fixedly sleeved with a first belt pulley (13) and a second belt pulley (14) at corresponding positions, and the first belt pulley (13) and the second belt pulley (14) are jointly tensioned and sleeved with a synchronous belt (15).
4. The chemical material crushing and screening device according to claim 1, wherein the reciprocating mechanism comprises a movable cavity (23) arranged in the second top plate (2), a first sliding groove (22) is formed in an inner bottom wall of the movable cavity (23), a cross-shaped sliding block (21) is connected in the first sliding groove (22) in a sliding mode, the lower end of the cross-shaped sliding block (21) is fixedly connected with the motor (17), a permanent magnet (25) is fixedly connected to one side of the cross-shaped sliding block (21) located in the movable cavity (23), an electromagnetic block (24) which is arranged in a mode of being repelled by the permanent magnet (25) is fixedly installed on an inner wall of one side of the movable cavity (23), and a first spring is fixedly connected to the inner wall of the other side of the movable cavity (23) and the permanent magnet (25) together.
5. The chemical material crushing and screening device according to claim 1, wherein the thickness of the first gear (6) is larger than the thickness of the second gear (12) and the third gear (18).
6. The chemical material crushing and screening device according to claim 1, wherein a collecting box (33) is arranged below the discharge end of the collecting hopper (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011254227.0A CN112473899A (en) | 2020-11-11 | 2020-11-11 | Broken sieving mechanism of material for chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011254227.0A CN112473899A (en) | 2020-11-11 | 2020-11-11 | Broken sieving mechanism of material for chemical industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112473899A true CN112473899A (en) | 2021-03-12 |
Family
ID=74929558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011254227.0A Withdrawn CN112473899A (en) | 2020-11-11 | 2020-11-11 | Broken sieving mechanism of material for chemical industry |
Country Status (1)
| Country | Link |
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| CN (1) | CN112473899A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399019A (en) * | 2021-05-10 | 2021-09-17 | 阮莹 | Traditional chinese medical science spleen and stomach branch of academic or vocational study medicine reducing mechanism |
| CN113559970A (en) * | 2021-06-21 | 2021-10-29 | 石嘴山市华昊化工有限公司 | Intelligent super little reducing and grading plant of superconductive negative pole carbon black |
-
2020
- 2020-11-11 CN CN202011254227.0A patent/CN112473899A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399019A (en) * | 2021-05-10 | 2021-09-17 | 阮莹 | Traditional chinese medical science spleen and stomach branch of academic or vocational study medicine reducing mechanism |
| CN113559970A (en) * | 2021-06-21 | 2021-10-29 | 石嘴山市华昊化工有限公司 | Intelligent super little reducing and grading plant of superconductive negative pole carbon black |
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Application publication date: 20210312 |
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| WW01 | Invention patent application withdrawn after publication |