CN112427134A - Crushing and screening device for graphene production and using method thereof - Google Patents

Crushing and screening device for graphene production and using method thereof Download PDF

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Publication number
CN112427134A
CN112427134A CN202011195517.2A CN202011195517A CN112427134A CN 112427134 A CN112427134 A CN 112427134A CN 202011195517 A CN202011195517 A CN 202011195517A CN 112427134 A CN112427134 A CN 112427134A
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China
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fixedly connected
rod
connecting rod
moving
groove
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CN202011195517.2A
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Chinese (zh)
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岳秋香
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Priority to CN202011195517.2A priority Critical patent/CN112427134A/en
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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
    • 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
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
    • B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • 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
    • B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
    • 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
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • 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
    • 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
    • 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
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165—Screen denying egress of oversize material

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

The invention relates to the technical field of crushing devices, in particular to a crushing and screening device for graphene production and a using method of the crushing and screening device. The device can prevent large-particle materials from being mixed in small-particle materials to influence the quality of the whole materials, can directly screen the materials, improves the working efficiency of users, prevents the users from lifting large-particle materials to the feed inlet of the crusher main body, prevents dust of the materials from being dispersed into the air and being sucked into the body of the users to cause harm to the health of the users, and also recycles the materials in the filter screen, thereby improving the utilization rate of the materials and having strong practicability.

Description

Crushing and screening device for graphene production and using method thereof
Technical Field
The invention relates to the technical field of crushing devices, in particular to a crushing and screening device for graphene production and a using method thereof.
Background
In recent years, with the development of the industries of mining, cement, traffic construction, metallurgy, chemical industry, electric power, water conservancy, real estate and the like, the industries of Chinese crushing and grinding equipment have taken qualitative leap in the aspects of capacity scale, economic strength, product technology, management level and the like, and the international market is high in singing, the crushing equipment mainly comprises a jaw crusher, a cone crusher, a gyratory crusher, a hammer crusher, a roller crusher, an impact crusher, and the like, belongs to the category of engineering machinery, has common characteristics, basic engineering machinery for crushing in the industries of raw material buildings and the like, generally adopts a jaw crusher, a cone crusher and the like for coarse crushing, adopts a cone crusher, and the like for medium crushing, adopts a cone crusher, a hammer crusher, an impact crusher and the like for fine crushing, adopts a roller crusher and the like for fine crushing, grinding processing adopts the ball mill, and the vibration mill, injection type mill etc. but this is also not absolute, and some machinery both is fit for the coarse crushing, also is fit for well garrulous, and current some crushing equipment on the market does not sieve secondary crushing's structure at present, when the user is carrying out the breakage, can have partial large granular material in the material, and the user still need sieve the material this moment, and the breakage once more, very waste time influences user's normal work.
Disclosure of Invention
The invention aims to provide a crushing and screening device for graphene production and a using method thereof, and aims to solve the problems that the conventional part of crushing equipment on the market in the background art does not have a secondary crushing structure, when a user crushes, part of large granular materials exist in the materials, and the user needs to sieve and crush the materials again, so that time is wasted and normal work of the user is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a crushing and screening device for graphene production and a using method thereof comprise a crusher main body, a first motor and a second motor, wherein a screening mechanism is arranged at the bottom end of the crusher main body and comprises a slide way, a connecting slide rod is inserted into the bottom end of the slide way, a screen is fixedly connected to the middle part of the connecting slide rod, a guide plate is fixedly connected to the bottom end of the connecting slide rod, a guide piece is fixedly connected to the bottom end of the crusher main body, the first motor is installed at the rear end of the crusher main body, a first connecting rod is arranged inside the crusher main body, a fixing plate is fixedly connected to the middle part of the crusher main body, a shell is fixedly connected to the bottom end of the fixing plate, a circular turntable is arranged at the rear end inside the shell, the left end of a central shaft of the circular turntable penetrates through the shell and extends to the outside of the shell, a second connecting rod is fixedly connected to the left, the right end of the circular turntable is fixedly connected with a small rotating rod, a third connecting rod is arranged on the surface of the small rotating rod in a sleeved mode, a slider is arranged at the front end inside the shell, the rear end of the slider is hinged to the third connecting rod, a fourth connecting rod is fixedly connected to the front end of the slider, the front end of the fourth connecting rod penetrates through the shell and extends to the outside of the shell, a connecting piece is fixedly connected to the front end of the fourth connecting rod, the front end of the connecting piece is fixedly connected with a connecting sliding rod, a feeding mechanism is arranged at the right end of the crusher main body and comprises a supporting column, a first moving groove is formed in the left end of the supporting column, a second motor is installed on the right side of the top end of the crusher main body, a take-up reel is fixedly connected to the output end of the second motor, a rotating wheel is installed at the bottom end of the supporting column, a first connecting plate is arranged at the left, the right end of the moving block extends into the first moving groove, the bottom end of the left side of the first connecting plate is hinged with a hopper, the top end of the first connecting plate is provided with a first elastic groove, the top end of the first elastic groove is inserted with a moving rod, the bottom end of the moving rod is fixedly connected with a first spring, the bottom end of the first spring is fixedly connected with the inner wall of the first elastic groove, the top end of the moving rod is fixedly connected with a second connecting plate, the left end of the bottom side of the second connecting plate is fixedly connected with a first abutting block, the first abutting block extends into the hopper, the top end of the second connecting plate is fixedly connected with a pull ring, the top end of the pull ring is fixedly connected with one end of a steel wire rope, the other end of the steel wire rope passes through a rotating wheel to extend into the take-up coil and is fixedly connected with the take-up coil, the top end of the crusher main body is fixedly connected with a small, the crusher comprises a crusher body, a hopper, a feeding hole, a first movable groove, a first connecting rod, a dust collecting mechanism, a dust collecting box, a wind box, a sixth connecting rod, a fan blade, a wind port, a fifth connecting rod, a fan blade, a wind box and a fan blade, wherein the feeding hole is formed in the left bottom end of the hopper in a penetrating manner, the first movable rod is inserted into the top end of the first movable groove, the dust collecting mechanism is arranged in the crusher body and comprises the dust collecting box, the first material hole is formed in the left side and the right side of the dust collecting box in a penetrating manner, the filter box is fixedly connected to the inner wall of the bottom end of the crusher body, the first connecting rod is communicated with the top end of the filter box, the top end of the first connecting rod is communicated with the bottom end of the dust collecting box, the wind box is fixedly connected to the inner wall of the bottom end of the crusher body, the, the front end of the fifth connecting rod is communicated with the rear end of the filter box, a filter screen is arranged in the filter box, a through hole is formed in the left end of the filter box in a penetrating manner, a baffle is inserted in the front end of the through hole, threaded grooves are formed in the upper end and the lower end of the left side of the filter box, threaded rods are inserted in the upper end and the lower end of the left side of the baffle and extend to the inside of the threaded grooves through the baffle, slots are formed in the left side and the right side of the inner wall of the top end of the filter box, inserting rods are fixedly connected to the left side and the right side of the top end of the filter screen, the top ends of the inserting rods extend to the inside of the slots, second elastic grooves are formed in the sides, away from each other, second moving grooves are formed in the left side and the right side of the top end of the filter box, second moving grooves are formed in the bottom ends of the second moving grooves, one ends of the second moving grooves are communicated, and the second supports the inside that the one end that the piece kept away from each other adds and passes the second elastic groove and extend to the second movable groove, the inside in second movable groove all is provided with the second movable rod, the top in second movable groove all is inserted and is equipped with the push rod, and the bottom of push rod all with second movable rod fixed connection, the rear end of sixth connecting rod and the bottom of first connecting rod pass through bevel gear and constitute first link gear, the top of first connecting rod and the left end of second connecting rod pass through bevel gear and constitute second link gear.
Preferably, the inner wall of the shell is provided with a first sliding groove, and the upper end and the lower end of the sliding piece are fixedly connected with a first sliding block.
Preferably, the inner walls of the left end and the right end of the first elastic groove are provided with second sliding grooves, and the left end and the right end of the surface of the moving rod are fixedly connected with second sliding blocks.
Preferably, the inner wall of the penetrating opening is glued with a rubber pad, and the inner wall of the rubber pad is attached to the baffle.
Preferably, one end of the slot is in an inclined plane shape, and one end of the second abutting block is in an inclined plane shape.
Preferably, the inner walls of the upper end and the lower end of the second elastic groove are provided with third sliding grooves, and one ends, close to each other, of the upper side and the lower side of the second abutting block are fixedly connected with third sliding blocks.
Preferably, the inner walls of the upper end and the lower end of the second movable groove are provided with fourth sliding grooves, and the upper end and the lower end of the surface of the second movable rod are fixedly connected with fourth sliding blocks.
Preferably, the top end of the push rod is provided with anti-slip lines, and the anti-slip lines are triangular.
Preferably, one end of the second movable rod, which is far away from the second movable rod, is fixedly connected with one end of a third spring, and the other end of the third spring is fixedly connected with the inner wall of the second movable groove.
Preferably, the method comprises the following operation steps:
the method comprises the following steps: the output end of the first motor rotates, the first connecting rod is driven to rotate through the first transmission mechanism, the second connecting rod is driven to rotate through the second transmission mechanism, the second connecting rod drives the circular rotating disc to rotate, the circular rotating disc drives the small rotating rod to rotate, the small rotating rod drives the rear end of the third connecting rod to rotate, the rear end of the third connecting rod makes circular motion, the front end of the third connecting rod makes linear motion, the front end of the third connecting rod drives the sliding piece, the fourth connecting rod and the connecting piece to move, the connecting piece drives the connecting sliding rod to make reciprocating motion, the small rotating rod drives the screen and the guide plate to make reciprocating motion, the screen can screen falling materials, small materials fall at the left end of the guide plate, large materials are screened at the right end of the guide plate, fall at the top end of the guide plate and slide in the hopper to continue to be collected;
step two: the rotating sixth connecting rod drives the fan blades to rotate, the front ends of the fan blades generate suction, the fifth connecting rod connects the air box with the filter box, the filter box is connected with the dust collection box, so that the top end of the first connecting pipe generates suction, air around the screen and the guide plate is sucked into the filter box, the air passes through the first connecting pipe and enters the filter box and is filtered by the filter screen in the filter box, material dust in the air is filtered out, clean air is discharged through the fifth connecting rod, the air box and the air port, after the air is crushed, the output end of the second motor rotates to drive the take-up reel, the take-up reel pulls the steel wire rope, the steel wire rope pulls the first connecting plate and the hopper, the first connecting plate drives the moving block to move together, when the moving block moves to the topmost end to abut against the inner wall of the first moving groove, at the moment, the steel wire rope continues to shorten, the pull ring is pulled to move upwards, the pull ring drives the second connecting plate, the moving rod and the first abutting block to move, the moving rod stretches the first spring, when the first abutting block is not abutted to the hopper, the hopper rotates to pour materials into the material groove, after pouring, a user pushes the hopper to recover, the second motor is enabled to rotate reversely, the hopper is put down to return to the original position, and then the user pulls the first moving rod upwards to crush the materials again;
step three: the user rotates the threaded rod and takes off the baffle, then the user promotes the push rod, make the second movable rod support the piece with the second and contradict, it removes to the inside in second bullet groove to drive the second to support the piece, the one end that supports the piece when the second is not behind the inside that is in the second movable groove, the user stimulates the filter screen downwards, alright take off the filter screen, carry out recycle with the material of the inside, then the user is in the inside of putting back the rose box with clean filter screen, the user supports the inside that the inserted bar inserted the slot and accomplishes fixedly through the second, the user inserts the inside of wearing the mouth with the baffle again, then pass the inside that the baffle inserted the thread groove with the threaded rod, the user rotates the thread groove and accomplishes fixedly.
Compared with the prior art, the invention has the beneficial effects that: the device can prevent large-particle materials from being mixed in small-particle materials to influence the quality of the whole materials, can directly screen the materials, improves the working efficiency of users, prevents the users from lifting large-particle materials to the feed inlet of the crusher main body, prevents dust of the materials from being dispersed into the air and being sucked into the body by the users to cause harm to the health of the users, and also recycles the materials in the filter screen, thereby improving the utilization rate of the materials and having strong practicability;
1. by arranging the screening mechanism, when a user uses the device, the crushed materials fall on the surface of the screen, the screen which performs reciprocating motion can screen the materials, small materials are discharged through the left end of the guide plate, and large materials fall into the hopper through the right end of the guide plate;
2. by arranging the feeding mechanism, when a user uses the device, large-particle materials fall into the hopper, the second motor can move the hopper and the first connecting plate upwards through the take-up reel, the rotating wheel and the steel wire rope, then the large-particle materials are poured into the trough, and then the user opens the trough to put the large-particle materials into the crusher main body again for crushing;
3. through being provided with feed mechanism, when the user is using this device, the front end of bellows can produce suction, the inside air of case that will gather dust is siphoned away and is filtered, inhale the inside of rose box with some tiny material dust, filter by the inside filter screen of rose box, the dust dispersion of avoiding the material is to the air, inhale the health by the user, cause harm for user's healthy, the user still carries out recycle to the inside material of filter screen, very big reduction the waste of material, the utilization ratio of material has been improved.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic sectional elevation view of the structure of the present invention;
FIG. 3 is an enlarged view of a portion of the structure shown at B in FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of a portion of the structure of FIG. 2 at C;
FIG. 5 is an enlarged view of a portion of the structure shown at D in FIG. 2 according to the present invention;
FIG. 6 is a schematic side sectional view of the structure of the present invention;
FIG. 7 is an enlarged view of a portion of the structure shown at A in FIG. 6 according to the present invention;
FIG. 8 is a schematic front view of the first link, the second link and the housing of the present invention;
FIG. 9 is a schematic top sectional view of the structure of the support post and the traveling block of the present invention;
FIG. 10 is a schematic side view of the second motor and take-up reel configuration of the present invention.
In the figure: 100. a crusher main body; 200. a screening mechanism; 210. a slideway; 211. connecting a sliding rod; 212. screening a screen; 213. a baffle; 214. a flow guide member; 215. a first motor; 216. a first link; 217. a fixing plate; 218. a housing; 219. a circular turntable; 220. a second link; 221. a small rotating rod; 222. a third link; 223. a slider; 224. a fourth link; 225. a connecting member; 300. a feeding mechanism; 310. a pillar; 311. a first moving slot; 312. a second motor; 313. taking up a coil; 314. a rotating wheel; 315. a first connecting plate; 316. a moving block; 317. a hopper; 318. a first magazine; 319. a travel bar; 320. a second connecting plate; 321. a first resisting block; 322. a pull ring; 323. a wire rope; 324. a small strut; 325. a trough; 326. a blanking port; 327. a first movable slot; 328. a first movable bar; 400. a dust collecting mechanism; 410. a dust collection box; 411. a first material port; 412. a filter box; 413. a first connecting pipe; 414. an air box; 415. a sixth link; 416. a fan blade; 417. a tuyere; 418. a fifth link; 419. filtering with a screen; 420. perforating; 421. a baffle plate; 422. a thread groove; 423. a threaded rod; 424. a slot; 425. inserting a rod; 426. a second magazine; 427. a second movable slot; 428. a second moving slot; 429. a second resisting block; 430. a push rod; 431. a second movable bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-10, an embodiment of the present invention is shown:
a crushing and screening device for graphene production and a using method thereof are disclosed, the device comprises a crusher main body 100, a first motor 215 and a second motor 312, a screening mechanism 200 is arranged at the bottom end of the crusher main body 100, the screening mechanism 200 comprises a slide way 210, connecting slide rods 211 are inserted at the bottom ends of the slide way 210, a screen 212 is fixedly connected to the middle of each connecting slide rod 211, a guide plate 213 is fixedly connected to the bottom end of each connecting slide rod 211, a guide piece 214 is fixedly connected to the bottom end of the crusher main body 100, the first motor 215 is installed at the rear end of the crusher main body 100, a first connecting rod 216 is arranged inside the crusher main body 100, a fixing plate 217 is fixedly connected to the middle of the crusher main body 100, a shell 218 is fixedly connected to the bottom end of the fixing plate 217, a circular turntable 219 is arranged at the rear end inside the shell 218, the left end of the central shaft of the circular turntable 219 penetrates through the shell 218 and extends to the outside of, a small rotating rod 221 is fixedly connected to the right end of the circular rotating disc 219, a third connecting rod 222 is sleeved on the surface of the small rotating rod 221, a slider 223 is arranged at the front end inside the shell 218, the rear end of the slider 223 is hinged to the third connecting rod 222, a fourth connecting rod 224 is fixedly connected to the front end of the slider 223, the front end of the fourth connecting rod 224 penetrates through the shell 218 and extends to the outside of the shell 218, a connecting piece 225 is fixedly connected to the front end of the fourth connecting rod 224, the front end of the connecting piece 225 is fixedly connected to the connecting sliding rod 211, a feeding mechanism 300 is arranged at the right end of the crusher main body 100, the feeding mechanism 300 comprises a support column 310, a first moving groove 311 is arranged at the left end of the support column 310, a second motor 312 is arranged at the right side of the top end of the crusher main body 100, a take-up reel 313 is fixedly connected to the output end of the second motor 312, a rotating wheel 314, a moving block 316 is fixedly connected to the rear end of the first connecting plate 315, the right end of the moving block 316 extends into the first moving groove 311, a hopper 317 is hinged to the bottom end of the left side of the first connecting plate 315, a first elastic groove 318 is formed in the top end of the first connecting plate 315, a moving rod 319 is inserted into the top end of the first elastic groove 318, a first spring is fixedly connected to the bottom end of the moving rod 319, the bottom end of the first spring is fixedly connected to the inner wall of the first elastic groove 318, a second connecting plate 320 is fixedly connected to the top end of the moving rod 319, a first abutting block 321 is fixedly connected to the left end of the bottom side of the second connecting plate 320, the first abutting block 321 extends into the hopper 317, a pull ring 322 is fixedly connected to the top end of the second connecting plate 320, the top end of the pull ring 322 is fixedly connected to one end of a steel wire rope 323, the other end of the steel wire rope 323 passes through the rotating wheel 314 to extend into the take-up reel 313 and is, a trough 325 is fixedly connected to the top end of the small support rod 324, a blanking port 326 is arranged at the bottom end of the left side of the trough 325 in a penetrating manner, a first movable trough 327 is arranged at the left side of the top end of the trough 325, a first movable rod 328 is inserted into the top end of the first movable trough 327, a dust collection mechanism 400 is arranged inside the crusher main body 100, the dust collection mechanism 400 comprises a dust collection box 410, a first material port 411 is arranged at each of the left side and the right side of the dust collection box 410 in a penetrating manner, a filter box 412 is fixedly connected to the inner wall of the bottom end of the crusher main body 100, a first connecting pipe 413 is communicated with the top end of the filter box 412, the top end of the first connecting pipe 413 is communicated with the bottom end of the dust collection box 410, an air box 414 is fixedly connected to the inner wall of the bottom end of the crusher main body 100, a sixth connecting rod 415 is inserted into the rear end of the air box 414, the rear end, the front end of the air box 414 is communicated with a fifth connecting rod 418, the front end of the fifth connecting rod 418 is communicated with the rear end of the filter box 412, a filter screen 419 is arranged in the filter box 412, the left end of the filter box 412 is penetrated and provided with a penetrating port 420, a baffle 421 is inserted in the front end of the penetrating port 420, the upper and lower ends of the left side of the filter box 412 are both provided with threaded grooves 422, the upper and lower ends of the left side of the baffle 421 are both inserted with threaded rods 423, the threaded rods 423 penetrate through the baffle 421 and extend into the threaded grooves 422, the left and right sides of the inner wall of the top end of the filter box 412 are both provided with insertion grooves 424, the left and right sides of the top end of the filter screen 419 are both fixedly connected with insertion rods 425, the top ends of the insertion rods 425 both extend into the insertion grooves 424, the sides of the insertion rods 425 far away from each other are both provided with second elastic grooves 426, the left and right sides of the top, one end of each second movable groove 427 is communicated with the corresponding slot 424, each second elastic groove 426 is internally provided with a second abutting block 429, one end, far away from each other, of each second abutting block 429 passes through the corresponding second elastic groove 426 and extends into the corresponding second movable groove 427, each second movable rod 431 is arranged inside the corresponding second movable groove 427, the top end of each second movable groove 428 is inserted with a push rod 430, the bottom end of each push rod 430 is fixedly connected with the corresponding second movable rod 431, the rear end of each sixth connecting rod 415 and the bottom end of each first connecting rod 216 form a first linkage mechanism through bevel gears, and the top end of each first connecting rod 216 and the left end of each second connecting rod 220 form a second linkage mechanism through bevel gears;
further, a first sliding groove is formed in the inner wall of the housing 218, a first sliding block is fixedly connected to both the upper end and the lower end of the sliding piece 223, and the first sliding block moves inside the first sliding groove, so that the movement stability of the sliding piece 223 is improved;
further, the inner walls of the left and right ends of the first elastic groove 318 are both provided with second sliding grooves, and the left and right ends of the surface of the moving rod 319 are both fixedly connected with second sliding blocks, so that when the second sliding blocks move inside the second sliding grooves, the stability of the moving rod 319 in moving can be increased, and meanwhile, the second sliding blocks are limited along with the moving rod 319;
further, a rubber pad is glued on the inner wall of the penetrating opening 420, the inner wall of the rubber pad is attached to the baffle 421, and the rubber pad can fill and seal a gap between the penetrating opening 420 and the baffle 421;
furthermore, one end of the slot 424 is in an inclined plane shape, one end of the second abutting block 429 is in an inclined plane shape, third sliding grooves are formed in the inner walls of the upper end and the lower end of the second elastic groove 426, one end, close to the upper side and the lower side of the second abutting block 429, of the second sliding block is fixedly connected with the third sliding block, after the inclined plane of the second abutting block 429 abuts against the inclined plane of the slot 424, the second abutting block 429 moves towards the inside of the second elastic groove 426, the moving second abutting block 429 drives the third sliding block to move in the third sliding grooves, and the moving stability of the second abutting block 429 is improved;
further, the inner walls of the upper and lower ends of the second movable groove 427 are provided with fourth sliding grooves, the upper and lower ends of the surface of the second movable rod 431 are fixedly connected with fourth sliding blocks, the top end of the push rod 430 is provided with anti-skid threads, the anti-slip patterns are all triangular, one end of the second movable rod 431, which is far away from each other, is fixedly connected with one end of a third spring, the other end of the third spring is fixedly connected with the inner wall of the second movable groove 427, a user pushes the push rod 430, the anti-slip patterns on the surface of the push rod 430 can be increased, the friction force between the user and the push rod 430 is increased, the push rod 430 drives the second movable rod 431 to move, the second movable rod 431 drives the fourth sliding block to move in the fourth sliding groove, the second movable rod 431 which moves stretches the third spring, the user releases the push rod 430, and at the moment, the second movable rod 431 and the push rod 430 are driven to reset under the self-resilience force of the third spring;
further, the method comprises the following operation steps:
the method comprises the following steps: the output end of the first motor 215 rotates, the first link 216 is driven to rotate by the first transmission mechanism, the second link 220 is driven to rotate by the second transmission mechanism, the second link 220 drives the circular turntable 219 to rotate, the circular turntable 219 drives the small rotating rod 221 to rotate, the small rotating rod 221 drives the rear end of the third link 222 to rotate, the rear end of the third link 222 makes circular motion, the front end of the third link 222 makes linear motion, the front end of the third link 222 drives the slider 223, the fourth link 224 and the connecting piece 225 to move, the connecting piece 225 drives the connecting sliding rod 211 to move back and forth, the small rotating rod 221 drives the screen 212 and the guide plate 213 to move back and forth, the screen 212 can screen falling materials, small materials fall at the left end of the guide plate 213, large materials screen at the right end of the guide plate 213, fall at the top end of the guide member 214 and slide down in the hopper 317 to be collected continuously;
step two: the rotating sixth connecting rod 415 drives the fan blades 416 to rotate, the front ends of the fan blades 416 generate suction, the fifth connecting rod 418 connects the wind box 414 with the filter box 412, the filter box 412 is connected with the dust collection box 410, so that the top end of the first connecting pipe 413 generates suction, air around the screen 212 and the guide plate 213 is sucked into the filter box 412, the air passes through the first connecting pipe 413 to enter the filter box 412 and is filtered by the filter screen 419 in the filter box 412, material dust in the air is filtered out, clean air is discharged through the fifth connecting rod 418, the wind box 414 and the air port 417, after the air is crushed, the output end of the second motor 312 rotates to drive the take-up coil 313, the take-up coil 313 pulls the steel wire rope 323, the steel wire rope 323 pulls up the first connecting plate 315 and the hopper 317, the first connecting plate 315 drives the moving block 316 to move together, when the moving block 316 moves to the topmost end to abut against the inner wall of the first moving groove 311 and then moves, at the moment, the steel wire rope 323 is continuously shortened, the pull ring 322 is pulled to move upwards, the pull ring 322 drives the second connecting plate 320, the moving rod 319 and the first abutting block 321 to move, the moving rod 319 stretches the first spring, when the first abutting block 321 is not abutted to the hopper 317, the hopper 317 rotates to pour the materials into the hopper 325, after pouring is finished, a user pushes the hopper 317 to recover, the second motor 312 rotates reversely, the hopper 317 is put down to return to the original position, then the user pulls the first movable rod 328 upwards to crush the materials again;
step three: the user rotates the threaded rod 423 to take off the baffle 421, then the user pushes the push rod 430, so that the second movable rod 431 is abutted against the second abutting block 429 to drive the second abutting block 429 to move towards the inside of the second elastic groove 426, when one end of the second abutting block 429 is not located inside the second movable groove 427, the user pulls the filter screen 419 downwards, the filter screen 419 can be taken off, the materials inside are recycled, then the user puts the clean filter screen 419 back into the inside of the filter box 412, the user inserts the insertion rod 425 into the inside of the insertion groove 424 to complete the fixation through the second abutting block 429, the user inserts the baffle 421 into the inside of the through opening 420, and then the user rotates the threaded rod 423 to insert into the inside of the threaded groove 422 to complete the fixation.
The working principle is as follows: firstly, the user electrically connects the control terminals of the first motor 215 and the second motor 312 of the electrical appliance to the control bus of the device, and then connects the power source externally, the output terminal of the first motor 215 rotates, the first link 216 is driven to rotate by the first transmission mechanism, the second link 220 is driven to rotate by the second transmission mechanism, the second link 220 drives the circular turntable 219 to rotate, the circular turntable 219 drives the small rotating rod 221 to rotate, the small rotating rod 221 drives the rear end of the third link 222 to rotate, the rear end of the third link 222 makes a circular motion, the front end of the third link 222 makes a linear motion, the front end of the third link 222 drives the slider 223 to move, the slider 223 drives the fourth link 224 to move, the fourth link 224 drives the connecting rod 225 to move, the connecting rod 225 drives the connecting slide rod 211 to move back and forth, the small rotating rod 221 drives the screen 212 and the guide plate 213 to move back and forth, the screen 212 can screen the falling materials, the small materials fall on the left end of the guide plate 213, the large materials are screened on the right end of the guide plate 213, fall on the top end of the guide piece 214 and slide in the hopper 317;
then, the rotating sixth link 415 drives the fan blade 416 to rotate, the front end of the fan blade 416 generates suction force, the fifth link 418 connects the wind box 414 and the filter box 412, the filter box 412 and the dust collection box 410 are connected, so that the top end of the first connecting pipe 413 generates suction force, air around the screen 212 and the deflector plate 213 is sucked into the filter box 412, the air passes through the first connecting pipe 413 to enter the inside of the filter box 412 and is filtered by the filter screen 419 in the filter box 412, material dust in the air is filtered out, clean air is discharged through the fifth link 418, the wind box 414 and the wind port 417, after being crushed, the output end of the second motor 312 rotates to drive the take-up reel 313, the take-up reel 313 pulls the steel wire rope 323, the steel wire rope 323 pulls up the first connecting plate 315 and the hopper 317, the first connecting plate 315 drives the moving block 316 to move together, and the moving block 316 slides in the first moving groove 311, when the moving block 316 moves to the topmost end and is abutted against the inner wall of the first moving groove 311, the first connecting plate 315 and the hopper 317 do not move, at this time, the steel wire rope 323 continues to be shortened, the pull ring 322 is pulled to move upwards, the pull ring 322 drives the second connecting plate 320 to move, the second connecting plate 320 drives the moving rod 319 and the first abutting block 321 to move, the moving rod 319 stretches the first spring, when the first abutting block 321 is not abutted against the hopper 317, the hopper 317 rotates, the hopper 317 makes circular motion, materials are poured into the hopper 325, after pouring, a user pushes the hopper 317 to recover, the second motor 312 is made to reverse, the hopper 317 is put down to the original position, then the user pulls the first moving rod 328 upwards, and the materials in the hopper 325 pass through the blanking port 326 and enter the crusher main body 100 to be crushed again;
finally, the user rotates the threaded rod 423 to remove the baffle 421, then the user pushes the push rod 430, the push rod 430 drives the second movable rod 431 to move, the moving second movable rod 431 stretches the third spring, the second movable rod 431 abuts against the second abutting block 429 to drive the second abutting block 429 to move towards the inside of the second elastic groove 426, meanwhile, the second spring is compressed, when one end of the second abutting block 429 is not located inside the second movable groove 427, the user pulls the filter screen 419 downwards to remove the filter screen 419, the second abutting block 429 is driven to reset under the self-resilience force of the second spring, the user releases the push rod 430, at the moment, the second movable rod 431 and the push rod 430 are driven to reset under the self-resilience force of the third spring to recycle the materials inside, then the user puts the clean filter screen 419 back into the filter box 412, and after the user inserts the insert rod 425 into the insert groove 424, after the inclined plane of the second abutting block 429 abuts against the inclined plane of the insertion groove 424, the second abutting block 429 moves towards the inside of the second elastic groove 426, meanwhile, the second spring is compressed, after the second abutting block 429 moves to the position of the second movable groove 427, the second abutting block 429 is driven to reset under the self-resilience force of the second spring, fixing is completed, the user inserts the baffle 421 into the penetrating opening 420, then the threaded rod 423 penetrates through the baffle 421 and is inserted into the threaded groove 422, and the user rotates the threaded groove 422 to complete fixing.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. The utility model provides a production of graphite alkene is with broken sieving mechanism, includes breaker main part (100), first motor (215) and second motor (312), its characterized in that: the bottom of breaker main part (100) is provided with screening mechanism (200), screening mechanism (200) includes slide (210), the bottom of slide (210) all is inserted and is equipped with connection slide bar (211), the middle part fixedly connected with screen cloth (212) of connecting slide bar (211), the bottom fixedly connected with guide plate (213) of connecting slide bar (211), the bottom fixedly connected with water conservancy diversion spare (214) of breaker main part (100), first motor (215) are installed to the rear end of breaker main part (100), the inside of breaker main part (100) is provided with first connecting rod (216), the middle part fixedly connected with fixed plate (217) of breaker main part (100), the bottom fixedly connected with shell (218) of fixed plate (217), the inside rear end of shell (218) is provided with round turntable (219), and the left end of round turntable (219) center pin passes shell (218) and extends to the outside of shell (218), the crusher comprises a circular turntable (219), a second connecting rod (220) is fixedly connected to the left end of a central shaft of the circular turntable (219), a small rotating rod (221) is fixedly connected to the right end of the circular turntable (219), a third connecting rod (222) is arranged on the surface of the small rotating rod (221) in a sleeved mode, a slider (223) is arranged at the front end inside a shell (218), the rear end of the slider (223) is hinged to the third connecting rod (222), a fourth connecting rod (224) is fixedly connected to the front end of the slider (223), the front end of the fourth connecting rod (224) penetrates through the shell (218) and extends to the outside of the shell (218), a connecting piece (225) is fixedly connected to the front end of the fourth connecting rod (224), the front end of the connecting piece (225) is fixedly connected to a connecting sliding rod (211), a feeding mechanism (300) is arranged at the right end of a crusher main body (100), and the feeding mechanism (300, a first moving groove (311) is formed in the left end of the strut (310), a second motor (312) is installed on the right side of the top end of the crusher main body (100), a take-up reel (313) is fixedly connected to the output end of the second motor (312), a rotating wheel (314) is installed at the bottom end of the strut (310), a first connecting plate (315) is arranged at the left end of the strut (310), a moving block (316) is fixedly connected to the rear end of the first connecting plate (315), the right end of the moving block (316) extends into the first moving groove (311), a hopper (315) is hinged to the bottom end of the left side of the first connecting plate (315), a first elastic groove (318) is formed in the top end of the first connecting plate (315), a moving rod (317) is inserted into the top end of the first elastic groove (318), a first spring is fixedly connected to the bottom end of the moving rod (319), and the bottom end of the first spring is fixedly connected to the inner wall of the first elastic groove (318), the top end of the moving rod (319) is fixedly connected with a second connecting plate (320), the left end of the bottom side of the second connecting plate (320) is fixedly connected with a first abutting block (321), the first abutting block (321) extends into the hopper (317), the top end of the second connecting plate (320) is fixedly connected with a pull ring (322), the top end of the pull ring (322) is fixedly connected with one end of a steel wire rope (323), the other end of the steel wire rope (323) penetrates through a rotating wheel (314) to extend into a take-up reel (313) and is fixedly connected with the take-up reel (313), the top end of the crusher main body (100) is fixedly connected with a small supporting rod (324), the top end of the small supporting rod (324) is fixedly connected with a material groove (325), the bottom end of the left side of the material groove (325) penetrates through and is provided with a blanking port (326), the left side of the top end of the material groove, the top end of the first movable groove (327) is inserted with a first movable rod (328), the interior of the crusher main body (100) is provided with a dust collecting mechanism (400), the dust collecting mechanism (400) comprises a dust collecting box (410), the left side and the right side of the dust collecting box (410) are both penetrated with a first material opening (411), the inner wall of the bottom end of the crusher main body (100) is fixedly connected with a filter box (412), the top end of the filter box (412) is communicated with a first connecting pipe (413), the top end of the first connecting pipe (413) is communicated with the bottom end of the dust collecting box (410), the inner wall of the bottom end of the crusher main body (100) is fixedly connected with an air box (414), the rear end of the air box (414) is inserted with a sixth connecting rod (415), the rear end of the sixth connecting rod (415) is fixedly connected with the output end of the first motor (215), and the front end of the sixth connecting rod (415) is fixedly connected with fan blades, the rear end of the air box (414) is uniformly provided with air openings (417), the front end of the air box (414) is communicated with a fifth connecting rod (418), the front end of the fifth connecting rod (418) is communicated with the rear end of the filter box (412), a filter screen (419) is arranged inside the filter box (412), the left end of the filter box (412) is penetrated and provided with a penetrating opening (420), the front end of the penetrating opening (420) is inserted with a baffle plate (421), the left upper end and the left lower end of the filter box (412) are both provided with threaded grooves (422), the left upper end and the left lower end of the baffle plate (421) are both inserted with threaded rods (423), the threaded rods (423) penetrate through the baffle plate (421) and extend to the inside of the threaded grooves (422), the left side and the right side of the inner wall at the top end of the filter box (412) are both provided with inserting grooves (424), the left side and the right side of the, the top ends of the insertion rods (425) extend into the insertion grooves (424), the sides of the insertion rods (425) far away from each other are provided with second elastic grooves (426), the left side and the right side of the top end of the filter box (412) are provided with second moving grooves (428), the bottom ends of the second moving grooves (428) are provided with second moving grooves (427), one ends of the second moving grooves (427) are communicated with the insertion grooves (424), the insides of the second elastic grooves (426) are provided with second abutting blocks (429), the ends of the second abutting blocks (429) far away from each other penetrate through the second elastic grooves (426) to extend into the insides of the second moving grooves (427), the insides of the second moving grooves (427) are provided with second moving rods (431), the top ends of the second moving grooves (428) are inserted with push rods (430), and the bottom ends of the push rods (430) are fixedly connected with the second moving rods (431), the rear end of the sixth connecting rod (415) and the bottom end of the first connecting rod (216) form a first linkage mechanism through a bevel gear, and the top end of the first connecting rod (216) and the left end of the second connecting rod (220) form a second linkage mechanism through the bevel gear.
2. The crushing and screening device for graphene production according to claim 1, wherein: the inner wall of the shell (218) is provided with a first sliding groove, and the upper end and the lower end of the sliding piece (223) are fixedly connected with a first sliding block.
3. The crushing and screening device for graphene production according to claim 1, wherein: the inner walls of the left end and the right end of the first elastic groove (318) are provided with second sliding grooves, and the left end and the right end of the surface of the movable rod (319) are fixedly connected with second sliding blocks.
4. The crushing and screening device for graphene production according to claim 1, wherein: the inner wall of the penetrating opening (420) is glued with a rubber pad, and the inner wall of the rubber pad is attached to the baffle (421).
5. The crushing and screening device for graphene production according to claim 1, wherein: one end of the slot (424) is in an inclined plane shape, and one end of the second abutting block (429) is in an inclined plane shape.
6. The crushing and screening device for graphene production according to claim 1, wherein: third sliding grooves are formed in the inner walls of the upper end and the lower end of the second elastic groove (426), and a third sliding block is fixedly connected to one end, close to the upper side and the lower side of the second abutting block (429), of the second abutting block.
7. The crushing and screening device for graphene production according to claim 1, wherein: the inner walls of the upper end and the lower end of the second movable groove (427) are provided with fourth sliding grooves, and the upper end and the lower end of the surface of the second movable rod (431) are fixedly connected with fourth sliding blocks.
8. The crushing and screening device for graphene production according to claim 1, wherein: the top end of the push rod (430) is provided with anti-skid grains which are triangular.
9. The crushing and screening device for graphene production according to claim 1, wherein: one ends, far away from each other, of the second movable rods (431) are fixedly connected with one ends of third springs, and the other ends of the third springs are fixedly connected with the inner wall of the second movable groove (427).
10. A crushing and screening device for graphene production and a using method thereof are characterized in that: the method comprises the following operation steps:
the method comprises the following steps: the output end of a first motor (215) rotates, a first connecting rod (216) is driven to rotate through a first transmission mechanism, a second connecting rod (220) is driven to rotate through a second transmission mechanism, the second connecting rod (220) drives a circular rotating disc (219) to rotate, the circular rotating disc (219) drives a small rotating rod (221) to rotate, the small rotating rod (221) drives the rear end of a third connecting rod (222) to rotate, the rear end of the third connecting rod (222) makes circular motion, the front end of the third connecting rod (222) makes linear motion, the front end of the third connecting rod (222) drives a sliding piece (223), a fourth connecting rod (224) and a connecting piece (225) to move, the connecting piece (225) drives a connecting sliding rod (211) to move back and forth, the small rotating rod (221) drives a screen (212) and a guide plate (213) to move back and forth, the screen (212) can screen falling materials, and the small materials fall on the left end of the guide plate (213), the large material sieve is arranged at the right end of the guide plate (213), falls on the top end of the guide member (214), slides in the hopper (317) and is continuously collected;
step two: the rotating sixth connecting rod (415) drives the fan blades (416) to rotate, the front ends of the fan blades (416) generate suction, the fifth connecting rod (418) is communicated with the air box (414) and the filter box (412), the filter box (412) is communicated with the dust collection box (410), so that the top end of the first connecting pipe (413) generates suction, air around the screen (212) and the guide plate (213) is sucked into the filter box (412), the air passes through the first connecting pipe (413) to enter the filter box (412), and is filtered by a filter screen (419) in the filter box (412), so that material dust in the air is filtered out, clean air is discharged through the fifth connecting rod (418), the air box (414) and the air opening (417), after the air is crushed, the output end of the second motor (312) rotates to drive the take-up reel (313), the take-up reel (313) pulls the steel wire rope (323), and the steel wire rope (323) pulls up the first connecting plate (315) and the hopper (317), the first connecting plate (315) drives the moving block (316) to move together, when the moving block (316) moves to the topmost end and abuts against the inner wall of the first moving groove (311) and then moves, the steel wire rope (323) continues to be shortened, the pull ring (322) is pulled to move upwards, the pull ring (322) drives the second connecting plate (320), the moving rod (319) and the first abutting block (321) to move, the moving rod (319) stretches the first spring, when the first abutting block (321) does not abut against the hopper (317), the hopper (317) rotates and pours the materials into the hopper (325), after pouring is finished, the user pushes the hopper (317) to restore, the second motor (312) rotates reversely, the hopper (317) is put down to the original position, then the user pulls the first moving rod (328) upwards to crush the materials again;
step three: the user rotates the threaded rod (423) to remove the baffle (421), and then the user pushes the push rod (430), the second movable rod (431) is abutted against the second abutting block (429) to drive the second abutting block (429) to move towards the inside of the second elastic groove (426), when one end of the second abutting block (429) is not positioned in the inner part of the second movable groove (427), the user can pull the filter screen (419) downwards to take down the filter screen (419) and recycle the materials in the filter screen, then, when a user puts the clean filter screen (419) back to the interior of the filter box (412), the user inserts the insert rod (425) into the interior of the insert slot (424) to complete the fixation through the second abutting block (429), the user inserts the baffle (421) into the interior of the through opening (420), then, after inserting the threaded rod (423) into the interior of the threaded groove (422) through the baffle plate (421), the user rotates the threaded groove (422) to complete the fixation.
CN202011195517.2A 2020-10-31 2020-10-31 Crushing and screening device for graphene production and using method thereof Withdrawn CN112427134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011195517.2A CN112427134A (en) 2020-10-31 2020-10-31 Crushing and screening device for graphene production and using method thereof

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114798112A (en) * 2022-05-09 2022-07-29 松果新能源汽车有限公司 New energy automobile battery recovery unit
CN118341666A (en) * 2024-03-29 2024-07-16 山东恒圣新材料有限公司 Screening device for carbon product production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114798112A (en) * 2022-05-09 2022-07-29 松果新能源汽车有限公司 New energy automobile battery recovery unit
CN118341666A (en) * 2024-03-29 2024-07-16 山东恒圣新材料有限公司 Screening device for carbon product production

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Application publication date: 20210302