CN110605159A - Crushing and sorting equipment for waste building structures - Google Patents

Crushing and sorting equipment for waste building structures Download PDF

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Publication number
CN110605159A
CN110605159A CN201810612884.4A CN201810612884A CN110605159A CN 110605159 A CN110605159 A CN 110605159A CN 201810612884 A CN201810612884 A CN 201810612884A CN 110605159 A CN110605159 A CN 110605159A
Authority
CN
China
Prior art keywords
crushing
base
driving motor
box
barrel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810612884.4A
Other languages
Chinese (zh)
Inventor
林光德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Huameite Metal Technology Co Ltd
Original Assignee
Jiangsu Huameite Metal Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Huameite Metal Technology Co Ltd filed Critical Jiangsu Huameite Metal Technology Co Ltd
Priority to CN201810612884.4A priority Critical patent/CN110605159A/en
Publication of CN110605159A publication Critical patent/CN110605159A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary 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
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/02Crushing or disintegrating by roller mills with two or more rollers
    • B02C4/08Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/28Details
    • B02C4/286Feeding devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/28Details
    • B02C4/30Shape or construction of rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/28Details
    • B02C4/42Driving mechanisms; Roller speed control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00Magnetic separation
    • B03C1/02Magnetic separation acting directly on the substance being separated
    • B03C1/16Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
    • B03C1/18Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with magnets moving during operation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/02Codes relating to disintegrating devices adapted for specific materials for reinforced concrete
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00Details of magnetic or electrostatic separation
    • B03C2201/20Magnetic separation whereby the particles to be separated are in solid form

Abstract

The invention discloses crushing and sorting equipment for waste building structures, which comprises a spiral feeding groove, a crushing box, a magnet box and a base, wherein a transverse separation plate is horizontally arranged at the middle position inside the base, the magnet box is arranged inside the base above a first collecting charging barrel, the permanent magnet barrel is arranged inside the magnet box, a conveying crawler belt is arranged inside the base above the transverse separation plate through a supporting seat, a hydraulic telescopic cylinder is arranged at one end, close to a storage battery, above the transverse separation plate, the other end above the base is provided with the crushing box, first crushing wheels matched with each other are arranged inside the crushing box, and second crushing wheels matched with each other are arranged inside the crushing box below the first crushing wheels. According to the invention, the crushing wheels with different diameters are arranged in the crushing box, so that large-particle wastes can be crushed twice in the crushing step, and the crushing requirement is met.

Description

Crushing and sorting equipment for waste building structures
Technical Field
The invention relates to the field of construction waste treatment equipment, in particular to crushing and sorting equipment for waste building structures.
Background
At present, the construction waste directly or indirectly affects the ecological environment, and poses serious threats to the development of cities and the health and survival of human beings, so that the contradiction between the generation and the consumption of the construction waste is increasingly prominent, in order to keep the sustainable development of economy and society, a plurality of crushing or sorting equipment for treating the waste construction structures appear on the market at present, the crushing step and the sorting step of a crusher are needed, the steps are mutually independent, the production efficiency is low, a large amount of labor is wasted, and the waste is not completely crushed after the crushing and sorting step, and the sorting of wastes such as metal materials, concrete blocks, wood blocks, plastics and the like in the waste is incomplete.
Disclosure of Invention
The invention aims to provide crushing and sorting equipment for waste building structures, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a crushing and sorting device for waste building structures comprises a spiral feeding groove, a crushing box, a magnet box and a base, wherein a storage battery is installed at one end inside the base, a water storage barrel is installed at the other end inside the base, a pressure sensor is installed inside the water storage barrel, a water outlet is formed in the bottom end, away from the storage battery, of the water storage barrel, a first collecting material barrel is installed inside the base between the storage battery and the water storage barrel, a second driving motor is installed inside the base, away from the water storage barrel, of the first collecting material barrel, a transverse partition plate is horizontally installed at the middle position inside the base, the top end of the water storage barrel penetrates through the transverse partition plate, the magnet box is installed inside the base above the first collecting material barrel, a permanent magnet barrel is installed inside the magnet box, a conveying crawler belt is installed inside the base above the transverse partition plate through a supporting seat, and the rotating shaft of one end of the conveying crawler near the storage battery is connected with the output end of the second driving motor through a belt, the conveying crawler is obliquely provided with a fourth driving motor near the transverse division plate on one side of the storage battery, one end of the upper part of the transverse division plate near the storage battery is provided with a hydraulic telescopic cylinder, the output end of the hydraulic telescopic cylinder penetrates through the upper surface of the base, one end of the upper part of the base near the storage battery is fixed with a feed hopper through the output end of the hydraulic telescopic cylinder and a support column, a filter screen is arranged at the bottom of the feed hopper between the hydraulic telescopic cylinder and the support column, a second collecting material barrel is arranged above the base between the hydraulic telescopic cylinder and the support column and is positioned under the filter screen, a spiral feeding groove is obliquely fixed above the base on one side of the feed hopper through a support rod, and, the spiral feeding groove is internally provided with a spiral feeding rod, the input end of the spiral feeding rod is connected with the output end of a fourth driving motor through a belt wheel mechanism, the other end of the upper part of the base is provided with a crushing box, the crushing box is positioned right above the magnet box, the bottom of the crushing box is communicated with the top end of the magnet box, the inside of the crushing box is provided with a first crushing wheel which is matched with the inside of the crushing box, the inside of the crushing box below the first crushing wheel is provided with a second crushing wheel which is matched with the inside of the crushing box, the middle positions of the two sides of the inside of the crushing box are respectively provided with a first rotating wheel and a second rotating wheel, the input ends of the first crushing wheel and the second crushing wheel are connected with the output ends of the first rotating wheel and the second rotating wheel through belts, the upper parts of the two sides of the crushing box are provided with a first driving motor and a third driving motor, and the output ends of the first driving motor and the third driving motor are connected, the top central point department of smashing the case is equipped with the second feed inlet, the electric input end of first driving motor, second driving motor, third driving motor and fourth driving motor all is connected through the electric output of wire with the battery.
Preferably, an access door is installed on the side face of the base through a hinge.
Preferably, the conveying crawler and the water storage barrel are positioned in the same vertical plane.
Preferably, the inner walls of the bases at the two ends of the transverse partition plate are provided with slide rails.
Preferably, the first driving motor and the third driving motor are welded with protective covers at the outer sides thereof.
Compared with the prior art, the invention has the beneficial effects that: this kind of crushing sorting facilities of abandonment building structures, through at the rear half section bottom installation hydraulic stretching cylinder of feeder hopper, make accessible hydraulic stretching cylinder raise the rear half section of feeder hopper and let some difficult landing's material get into the screw feeding groove when empting the discarded object, and through at crushing incasement portion installation diameter crushing wheel not of uniform size, and the gap of reserving between the crushing wheel is also different, make when carrying out the crushing step, large granule discarded object can obtain twice crushing, thereby reach kibbling requirement, through installing permanent magnetism section of thick bamboo, conveying track and storage water tank, make the metal material in the discarded object, rubbish compositions such as billet and plastics can obtain categorised collection, and do not need artifical z to shift the discarded object, very big improvement work efficiency.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic view of a front view of the base of the present invention;
in the figure: 1-a feed hopper; 2-a first feed port; 3-a spiral feeding groove; 4-a screw conveying rod; 5-a first wheel; 6-a first crushing wheel; 7-a second feed port; 8-a second grinding wheel; 9-crushing box; 10-a second wheel; 11-a first drive motor; 12-a base; 13-a pressure sensor; 14-a water outlet; 15-a water storage barrel; 16-a support seat; 17-a conveyor track; 18-permanent magnetic cylinder; 19-a first collection cartridge; 20-magnet box; 21-a second drive motor; 22-a third drive motor; 23-a fourth drive motor; 24-a storage battery; 25-a transverse divider plate; 26-a hydraulic telescopic cylinder; 27-a support column; 28-a second collection cartridge; 29-filter screen; 30-access door.
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. 1-2, an embodiment of the present invention is shown: a crushing and sorting device for waste building structures comprises a spiral feeding groove 3, a crushing box 9, a magnet box 20 and a base 12, wherein an access door 30 is installed on the side surface of the base 12 through a hinge to facilitate the maintenance work of workers, a storage battery 24 is installed at one end inside the base 12, a water storage barrel 15 is installed at the other end inside the base 12, a pressure sensor 13 is installed inside the water storage barrel 15, a water outlet 14 is formed in the bottom end of one side, away from the storage battery 24, of the water storage barrel 15, a first collecting material barrel 19 is installed inside the base 12 between the storage battery 24 and the water storage barrel 15, a second driving motor 21 is installed inside the base 12, away from one side of the water storage barrel 15, of the first collecting material barrel 19, the type of the second driving motor 21 can be Y90L-2, a transverse partition plate 25 is horizontally installed at the middle position inside the base 12, and the top end of the water storage barrel, the inner walls of the bases 12 at two ends of the transverse partition plate 25 are respectively provided with a slide rail, the transverse partition plate is convenient to disassemble, a magnet box 20 is arranged inside the base 12 above the first collecting cylinder 19, a permanent magnet cylinder 18 is arranged inside the magnet box 20, a conveying crawler 17 is arranged inside the base 12 above the transverse partition plate 25 through a supporting seat 16, the conveying crawler 17 and the water storage barrel 15 are positioned in the same vertical plane, so that waste can be directly sent into the water storage barrel, a rotating shaft of one end, close to the storage battery 24, of the conveying crawler 17 is connected with the output end of the second driving motor 21 through a belt, a fourth driving motor 23 is obliquely arranged on the transverse partition plate 25 of one side, close to the storage battery 24, of the conveying crawler 17, the model of the fourth driving motor 23 can be Y90L-2, one end, close to the storage battery 24, above the transverse partition plate 25 is provided with a hydraulic telescopic cylinder 26, a feed hopper 1 is fixed at one end, close to the storage battery 24, above the base 12 through an output end of a hydraulic telescopic cylinder 26 and a support column 27, a filter screen 29 is installed at the bottom of the feed hopper 1 between the hydraulic telescopic cylinder 26 and the support column 27, a second collecting material barrel 28 is installed above the base 12 between the hydraulic telescopic cylinder 26 and the support column 27, the second collecting material barrel 28 is positioned under the filter screen 29, a spiral feeding groove 3 is obliquely fixed above the base 12 at one side of the feed hopper 1 through a support rod, a first feed inlet 2 is arranged at the bottom end of the spiral feeding groove 3, a spiral feeding rod 4 is installed inside the spiral feeding groove 3, the input end of the spiral feeding rod 4 is connected with the output end of a fourth driving motor 23 through a belt pulley mechanism, a crushing box 9 is installed at the other end above the base 12, the crushing box 9 is positioned right above a magnet box 20, the bottom of the crushing box 9 is communicated with the top end, the first crushing wheel 6 which is matched with each other is arranged in the crushing box 9, the second crushing wheel 8 which is matched with each other is arranged in the crushing box 9 below the first crushing wheel 6, the first rotating wheel 5 and the second rotating wheel 10 are respectively arranged at the middle positions of two sides in the crushing box 9, the input ends of the first crushing wheel 6 and the second crushing wheel 8 are connected with the output ends of the first rotating wheel 5 and the second rotating wheel 10 through belts, the first driving motor 11 and the third driving motor 22 are arranged above 12 of two sides of the crushing box 9, the types of the first driving motor 11 and the third driving motor 22 can be Y90L-2, protective covers are welded on the outer sides of the first driving motor 11 and the third driving motor 22, the service life of the driving motors is prolonged, and the output ends of the first driving motor 11 and the third driving motor 22 are connected with the input ends of the first rotating wheel 5 and the second rotating wheel 10 through belts, the second feeding hole 7 is arranged at the center of the top end of the crushing box 9, and the electrical input ends of the first driving motor 11, the second driving motor 21, the third driving motor 22 and the fourth driving motor 23 are electrically connected with the electrical output end of the storage battery 24 through wires.
The working principle is as follows: when in use, the power is switched on, firstly, the waste is filled into the installed hopper 1, when the waste passes through the filter screen 29 at the bottom of the hopper 1, fine particles are collected into the second collecting material cylinder 28, the large waste is slid into the installed spiral feeding groove 3, the height of the rear half section of the hopper 1 is raised through the installed hydraulic telescopic cylinder 26, so that waste components which are not easy to slide down slide into the spiral feeding groove 3, then the fourth driving motor 23 is started, the fourth driving motor 23 drives the spiral conveying pipe 4 installed inside the spiral feeding groove 3 to rotate, the waste is conveyed into the crushing box 9, then the first driving motor 11 and the third driving motor 22 are started, the waste is firstly crushed through the installed first crushing wheel 6, the crushed small particles are crushed again through the installed second crushing wheel 8, after the crushing process is finished, the waste falls onto the installed conveying crawler 17, the second driving motor 21 is started to drive the conveying crawler 17 to operate, when passing through the magnet box 20, the metal impurities are adsorbed by the installed permanent magnet cylinder 18, the adsorbed impurities on the permanent magnet cylinder 18 are collected into the installed first collecting cylinder 19, then the nonmetal waste falls into the water storage barrel 15, and some wood blocks and plastic impurities are sorted out.
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 (5)

1. The utility model provides an abandonment building structures's crushing sorting facilities, includes spiral chute feeder (3), smashes case (9), magnet case (20) and base (12), its characterized in that: the water storage device is characterized in that a storage battery (24) is installed at one end of the inside of the base (12), a water storage barrel (15) is installed at the other end of the inside of the base (12), a pressure sensor (13) is installed inside the water storage barrel (15), a water outlet (14) is formed in the bottom end, far away from one side of the storage battery (24), of the water storage barrel (15), a first collecting material barrel (19) is installed inside the base (12) between the storage battery (24) and the water storage barrel (15), a second driving motor (21) is installed inside the base (12), far away from one side of the water storage barrel (15), of the first collecting material barrel (19), a transverse partition plate (25) is horizontally installed at the middle position of the inside of the base (12), the transverse partition plate (25) is penetrated through the top end of the water storage barrel (15), a magnet box (20) is installed inside the base (12) above the first collecting material barrel (19), and a, the conveying caterpillar band (17) is installed inside the base (12) above the transverse separating plate (25) through the supporting seat (16), the rotating shaft of the conveying caterpillar band (17) close to one end of the storage battery (24) is connected with the output end of the second driving motor (21) through a belt, the conveying caterpillar band (17) is obliquely installed on the transverse separating plate (25) close to one side of the storage battery (24) and provided with the fourth driving motor (23), the hydraulic telescopic cylinder (26) is installed at one end, close to the storage battery (24), above the transverse separating plate (25), of the output end of the hydraulic telescopic cylinder (26) penetrates through the upper surface of the base (12), the output end, close to the storage battery (24), of the base (12) above is fixed with the feeding hopper (1) through the hydraulic telescopic cylinder (26) and the supporting column (27), and the bottom of the feeding hopper (1) between the hydraulic telescopic cylinder (26) and the supporting column, a second collecting material cylinder (28) is installed above a base (12) between the hydraulic telescopic cylinder (26) and a support column (27), the second collecting material cylinder (28) is located under a filter screen (29), a spiral feeding groove (3) is obliquely fixed above the base (12) on one side of the feed hopper (1) through a support rod, a first feed port (2) is arranged at the bottom end of the spiral feeding groove (3), a spiral conveying rod (4) is installed inside the spiral feeding groove (3), the input end of the spiral conveying rod (4) is connected with the output end of a fourth driving motor (23) through a belt pulley mechanism, a crushing box (9) is installed at the other end above the base (12), the crushing box (9) is located right above a magnet box (20), the bottom of the crushing box (9) is communicated with the top end of the magnet box (20), and a first crushing wheel (6) matched with each other is installed inside the crushing box (9), and crushing case (9) internally mounted of first crushing wheel (6) below has second crushing wheel (8) of mutually supporting, crushing case (9) inside both sides intermediate position department installs first runner (5) and second runner (10) respectively, and the input of first crushing wheel (6) and second crushing wheel (8) all is connected with the output of first runner (5) and second runner (10) through the belt, first driving motor (11) and third driving motor (22) are installed to (12) top of crushing case (9) both sides, and the output of first driving motor (11) and third driving motor (22) all is connected with the input of first runner (5) and second runner (10) through the belt, the top central position department of crushing case (9) is equipped with second feed inlet (7), first driving motor (11), second driving motor (21), The electric input ends of the third driving motor (22) and the fourth driving motor (23) are electrically connected with the electric output end of the storage battery (24) through leads.
2. The demolition and sorting apparatus for waste building structures according to claim 1, wherein: and an access door (30) is arranged on the side surface of the base (12) through a hinge.
3. The demolition and sorting apparatus for waste building structures according to claim 1, wherein: the conveying crawler belt (17) and the water storage barrel (15) are positioned in the same vertical plane.
4. The demolition and sorting apparatus for waste building structures according to claim 1, wherein: and sliding rails are arranged on the inner walls of the bases (12) at the two ends of the transverse partition plate (25).
5. The demolition and sorting apparatus for waste building structures according to claim 1, wherein: and protective covers are welded on the outer sides of the first driving motor (11) and the third driving motor (22).
CN201810612884.4A 2018-06-14 2018-06-14 Crushing and sorting equipment for waste building structures Pending CN110605159A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810612884.4A CN110605159A (en) 2018-06-14 2018-06-14 Crushing and sorting equipment for waste building structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810612884.4A CN110605159A (en) 2018-06-14 2018-06-14 Crushing and sorting equipment for waste building structures

Publications (1)

Publication Number Publication Date
CN110605159A true CN110605159A (en) 2019-12-24

Family

ID=68887701

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810612884.4A Pending CN110605159A (en) 2018-06-14 2018-06-14 Crushing and sorting equipment for waste building structures

Country Status (1)

Country Link
CN (1) CN110605159A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111589508A (en) * 2020-05-28 2020-08-28 孙栋 Paper making raw material straw multiple crushing mechanism
CN111790477A (en) * 2020-07-14 2020-10-20 过蕊 Building waste residue processing apparatus
CN112337556A (en) * 2020-10-16 2021-02-09 谢洁萍 Crushing and sorting equipment for waste building structures
CN112977899A (en) * 2021-01-25 2021-06-18 阜阳德润磁材科技有限公司 Ferrite plastic magnetic particle material automatic production line

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111589508A (en) * 2020-05-28 2020-08-28 孙栋 Paper making raw material straw multiple crushing mechanism
CN111790477A (en) * 2020-07-14 2020-10-20 过蕊 Building waste residue processing apparatus
CN112337556A (en) * 2020-10-16 2021-02-09 谢洁萍 Crushing and sorting equipment for waste building structures
CN112977899A (en) * 2021-01-25 2021-06-18 阜阳德润磁材科技有限公司 Ferrite plastic magnetic particle material automatic production line

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Application publication date: 20191224

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