CN110694793A - Automatic iron remover for protecting high-speed crushing - Google Patents

Automatic iron remover for protecting high-speed crushing Download PDF

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Publication number
CN110694793A
CN110694793A CN201911155978.4A CN201911155978A CN110694793A CN 110694793 A CN110694793 A CN 110694793A CN 201911155978 A CN201911155978 A CN 201911155978A CN 110694793 A CN110694793 A CN 110694793A
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CN
China
Prior art keywords
magnetic
area
ferromagnetic substance
material conveying
magnet
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Pending
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CN201911155978.4A
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Chinese (zh)
Inventor
岳杰
李享平
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Wuxi Takeler Intelligent Technology Co Ltd
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Wuxi Takeler Intelligent Technology Co Ltd
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Priority to CN201911155978.4A priority Critical patent/CN110694793A/en
Publication of CN110694793A publication Critical patent/CN110694793A/en
Pending legal-status Critical Current

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    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

The invention relates to the technical field of crushers, in particular to an automatic iron remover for protecting high-speed crushing, which comprises a material conveying tank with an inner cavity and a magnetic assembly for adsorbing ferromagnetic substances, wherein a material inlet is arranged above the material conveying tank, a material outlet and an iron discharging opening are arranged below the material conveying tank, a ferromagnetic substance adsorption area is arranged at a position between the material inlet and the material outlet in the inner cavity, and a ferromagnetic substance discharge area is arranged at a position above the iron discharging opening in the inner cavity; the magnetic assemblies are arranged in the inner cavity in a sliding mode, and at least two groups of magnetic assemblies are arranged along the direction from the feeding hole to the discharging hole.

Description

Automatic iron remover for protecting high-speed crushing
Technical Field
The invention relates to the technical field of crushers, in particular to an automatic iron remover for protecting high-speed crushing.
Background
The high-speed pulverizer is suitable for industries such as medicine, chemical industry, pesticide, food, grain and the like, and has extremely wide application. The high-speed crusher utilizes the high-speed relative motion between the movable fluted disc and the fixed fluted disc to crush the crushed objects through the comprehensive actions of tooth impact, friction, impact among the objects and the like. The machine has simple and firm structure, stable operation and good crushing effect, crushed objects can be directly discharged from the grinding cavity of the main machine, and the granularity is obtained by replacing mesh screens with different apertures.
High-speed rubbing crusher is through setting up magnet in carrying the material way and adsorbing some have ferromagnetic substance etc. and magnet in current high-speed rubbing crusher is fixed the setting, when the material that adsorbs on the magnet needs the clearance, just need the operation of stop equipment, just so can not continuous production, and is more time-consuming and labor-consuming, has also reduced production efficiency.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problem that the magnet in the existing high-speed pulverizer is fixedly arranged, when the adsorbed substances on the magnet need to be cleaned, equipment needs to be stopped, so that continuous production cannot be realized, and the working efficiency is reduced, the automatic iron remover for protecting high-speed pulverization is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a magnetic assembly for protecting a high-speed crushing automatic iron remover comprises a material conveying tank with an inner cavity and a magnetic assembly for adsorbing ferromagnetic substances, wherein a material inlet is formed above the material conveying tank, a material outlet and an iron discharging opening are formed below the material conveying tank, a ferromagnetic substance adsorption area is arranged at a position, between the material inlet and the material outlet, in the inner cavity, and a ferromagnetic substance discharge area is arranged at a position, above the iron discharging opening, in the inner cavity;
the magnetic component slides and sets up in the inner chamber and is provided with at least two sets ofly to the discharge gate orientation along the feed inlet, when magnetic component arranges the material district by ferromagnetic substance adsorption district to ferromagnetic substance and removes, the ferromagnetic substance who adsorbs on the magnetic component arranges the material district at ferromagnetic substance and is scraped and fall into row iron mouthful.
According to the invention, at least two groups of magnetic assemblies are arranged on the material conveying tank in a sliding manner along the direction from the feeding port to the discharging port, the magnetic assemblies adsorb ferromagnetic substances in materials in the ferromagnetic substance adsorption area, and then when the corresponding magnetic assemblies are controlled to move from the ferromagnetic substance adsorption area to the ferromagnetic substance discharge area, the ferromagnetic substances adsorbed on the magnetic assemblies are scraped in the ferromagnetic substance discharge area and fall into the iron discharge port, and meanwhile, the other magnetic assemblies can still adsorb the ferromagnetic substances in the materials, so that the continuous production of equipment is realized, and the production efficiency is also improved.
When magnetic component strikes off ferromagnetic substance, ferromagnetic substance on its top magnetic component can drop to below magnetic component on, the ferromagnetic substance who just so is not convenient for top magnetic component discharges, furtherly, magnetic component includes at least one bar magnet, and the bar magnet is equipped with first nonmagnetic region and has the magnetism district along its axial, and first nonmagnetic region does not have the magnetism that adsorbs ferromagnetic substance, and there is the magnetism that adsorbs ferromagnetic substance district, and first nonmagnetic region is located ferromagnetic substance row material and distinguishes, and has the magnetism district to locate in ferromagnetic substance adsorbs the district. Through set up first nonmagnetic district and have the magnetism district on the bar magnet, when the ferromagnetic substance on the bar magnet of top dropped, the ferromagnetic substance just can pass through the first nonmagnetic district of below bar magnet, just so can not have ferromagnetic substance to adsorb on the bar magnet, the ferromagnetic substance on the top bar magnet of just also being convenient for discharges.
In order to facilitate manufacturing of the magnetic rod, the magnetic rod comprises a tube body made of a non-magnetic material, a magnet is arranged in the tube body, a first non-magnetic area is formed between the front end part of the tube body and the front end part of the magnet, and a magnetic area is formed at the position, located on the magnet, of the tube body. Through the manufacturing by the body of non-magnetic material to set up magnet in the body, be formed with the magnetism district like this in the place that has magnet, form first nonmagnetic district at the one end that does not have magnet, its simple structure, also be convenient for the manufacturing of bar magnet.
The bar magnet need be aligned again and insert when taking out, and is more loaded down with trivial details like this, often people can not take the bar magnet out completely, will make the ferromagnetic substance of bar magnet rear end strike off like this, also be for the convenience of striking off of bar magnet rear end ferromagnetic substance simultaneously, furtherly, still be provided with the second on the bar magnet and do not have the magnetism district, have the magnetism district to be located between first no magnetism district and the second no magnetism district, the second does not have the magnetism that adsorbs ferromagnetic substance. The second nonmagnetic area is arranged at the other end of the tube body, so that ferromagnetic substances on the tube body can be scraped conveniently.
In order to facilitate realization and manufacture, a second nonmagnetic area is further formed between the rear end part of the pipe body and the rear end part of the magnet. The second nonmagnetic area is formed at the other end of the ferromagnetic body, namely the magnetic area is positioned at the position of the magnet, and the first nonmagnetic area and the second nonmagnetic area are respectively positioned at the two ends of the magnet, so that the realization and the manufacture are convenient.
In order to facilitate scraping off ferromagnetic substances on the magnetic rod, furthermore, a through hole matched with the magnetic rod is formed in the material conveying tank, and one end of the magnetic rod penetrates through the through hole and protrudes out of the peripheral surface of the material conveying tank. Through seting up the through-hole on the material conveying jar, the bar magnet is when arranging the material district to the ferromagnetic substance by ferromagnetic substance adsorption district and remove, and the through-hole that passes of one end of bar magnet, the through-hole that is exactly strike off the ferromagnetic substance on bar magnet surface.
In order to reduce the working strength and realize automatic production, further, a power mechanism which corresponds to each group of magnetic components and drives the magnetic components to slide in a reciprocating manner is arranged on the material conveying tank. Through set up power unit on the conveying pipeline, drive the bar magnet through power unit and carry out reciprocating displacement, just also make the ferromagnetic substance on the bar magnet strike off, need not the manual work and clear, reduced intensity of labour.
In order to facilitate the realization of the reciprocating displacement of the magnetic bar driven by the power mechanism, the power mechanism is a cylinder, the cylinder is arranged on the material conveying tank, and the extending end of the cylinder is arranged on the magnetic assembly. The cylinder has a simple structure, is convenient to install and maintain at a later stage, and is convenient to drive the magnetic rod to slide in a reciprocating manner.
Further, magnetic component is provided with three groups along feed inlet to discharge gate direction, and the magnetic component that is located near feed inlet and discharge gate both ends includes two bar magnets that set up side by side each other, and the magnetic component that is located the centre includes the three bar magnets that set up side by side each other, and the cylinder has threely, and the stretching out of every cylinder is served and is equipped with the backup pad, and the one end of every bar magnet is fixed in corresponding backup pad.
Furthermore, the magnetic bars between two adjacent magnetic assemblies are arranged in a staggered way
The invention has the beneficial effects that: when the automatic iron removing machine is used for protecting the high-speed grinding automatic iron removing machine, at least two groups of magnetic assemblies are arranged in the material conveying channel, meanwhile, the power mechanism can move any one group of ferromagnetic substance adsorption area in the two groups of magnetic assemblies to the ferromagnetic substance discharge area, and the other group of magnetic assemblies are always in the inner cavity, so that continuous production of equipment can be realized, and the problems that the magnet in the conventional high-speed grinding machine is fixedly arranged, when the substances adsorbed on the magnet need to be cleaned, the equipment needs to be stopped to run, so that continuous production cannot be realized, and the working efficiency is reduced are solved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic three-dimensional structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a schematic view showing the internal structure of the material transporting tank of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 2;
FIG. 6 is a front view of a magnetic rod in the present invention.
In the figure: 1. the device comprises a material conveying tank, 2, an inner cavity, 3, a feeding hole, 4, a discharging hole, 5, a magnetic rod, 6, a first nonmagnetic area, 7, a magnetic area, 8, a second nonmagnetic area, 9, a through hole, 10, an iron discharging hole, 11, a cylinder, 12, a supporting plate, 13, a pipe body, 14, a magnet, 15, a ferromagnetic substance adsorption area, 16 and a ferromagnetic substance discharging area.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1-6, an automatic iron remover for protecting high-speed pulverization comprises a material conveying tank 1 with an inner cavity 2 and a magnetic component for adsorbing ferromagnetic substances, wherein a material inlet 3 is arranged above the material conveying tank 1, a material outlet 4 and an iron outlet 10 are arranged below the material conveying tank 1, a ferromagnetic substance adsorption area 15 is arranged between the material inlet 3 and the material outlet 4 in the inner cavity 2, and a ferromagnetic substance discharge area 16 is arranged above the iron outlet 10 in the inner cavity 2;
the magnetic component is arranged in the inner cavity 2 in a sliding mode and is provided with at least two groups along the direction from the feeding hole 3 to the discharging hole 4, when the magnetic component moves from the ferromagnetic substance adsorption area 15 to the ferromagnetic substance discharge area 16, the ferromagnetic substance adsorbed on the magnetic component is scraped in the ferromagnetic substance discharge area 16 and falls into the iron discharge hole 10.
The magnetic assembly comprises at least one magnetic rod 5, the magnetic rod 5 is provided with a first nonmagnetic area 6 and a magnetic area 7 along the axial direction of the magnetic rod, the first nonmagnetic area 6 does not have magnetism for adsorbing ferromagnetic substances, the magnetic area 7 has magnetism for adsorbing ferromagnetic substances, the first nonmagnetic area 6 is positioned in the ferromagnetic substance discharging area 16, and the magnetic area 7 is positioned in the ferromagnetic substance adsorbing area 15.
The magnetic rod 5 comprises a tube body 13 made of a non-magnetic material, the tube body 13 is a stainless steel tube, a magnet 14 is arranged in the tube body 13, a first non-magnetic area 6 is formed between the front end part of the tube body 13 and the front end part of the magnet 14, and a magnetic area 7 is formed at the position, located at the magnet 14, of the tube body 13.
The magnetic bar 5 is also provided with a second nonmagnetic area 8, the magnetic area 7 is positioned between the first nonmagnetic area 6 and the second nonmagnetic area 8, and the second nonmagnetic area 8 has no magnetism for adsorbing ferromagnetic substances. That is, the magnet 14 is disposed in the stainless steel channel 13 and just in the middle, and both ends of the stainless steel channel have no magnetism, so that the first nonmagnetic region 6 and the second nonmagnetic region 8 are formed.
A second nonmagnetic section 8 is formed between the rear end of the tube 13 and the rear end of the magnet 14. The material conveying tank 1 is provided with a through hole 9 matched with the magnetic rod 5, the through hole 9 is positioned on one side of the material conveying pipe close to the ferromagnetic material discharging area 16, and one end of the magnetic rod 5 penetrates through the through hole 9 and protrudes out of the peripheral surface of the material conveying tank 1. A clearance of 1mm is reserved between the through hole 9 and the stainless steel pipe, the material is mainly in a powder structure, the ferromagnetic substance is mainly a screw or a nut, and therefore the screw or the nut adsorbed on the stainless steel pipe can be scraped and falls to the iron discharging opening 10.
And the material conveying tank 1 is provided with a power mechanism which corresponds to each group of magnetic components and drives the magnetic components to slide in a reciprocating manner.
The power mechanism is a cylinder 11, the cylinder 11 is arranged on the material conveying tank 1, and the extending end of the cylinder 11 is arranged on the magnetic component. The cylinder 11 is connected with an external air source and is controlled to be opened and closed through an external controller.
Magnetic component is provided with three groups along feed inlet 3 to 4 directions of discharge gate, and the magnetic component that is located to be close to feed inlet 3 and 4 both ends of discharge gate includes two bar magnets 5 that set up each other side by side, and the magnetic component that is located the centre includes three bar magnets 5 that set up each other side by side, and cylinder 11 has threely, and stretching out of every cylinder 11 is served and is equipped with backup pad 12, and the one end of every bar magnet 5 is fixed in corresponding backup pad 12. The supporting plate 12 is provided with a mounting hole, the magnetic rod 5 is provided with a screw rod, and the screw rod penetrates through the mounting hole and fixes the magnetic rod 5 and the supporting plate 12 through a nut.
The magnetic bars 5 between two adjacent magnetic assemblies are arranged in a staggered mode. That is, the stainless steel tubes of the upper and lower stainless steel tubes are arranged in a staggered manner, and when the screw or the nut is scraped, the stainless steel tubes directly fall into the iron notch 10 and cannot be impacted.
When the automatic iron removing machine for protecting high-speed crushing is used, materials are fed into the inner cavity 2 through the feeding hole 3 in the material conveying tank 1, the materials mainly fall down to the discharging hole 4 through the 15-line ferromagnetic substance adsorption area, the ferromagnetic substances in the materials are adsorbed by the magnet 14 on the stainless steel pipe in the inner cavity 2, the ferromagnetic substances are mainly screws or nuts and the like, when the nuts or the screws are adsorbed on the magnet 14, the control cylinder 11 drives the stainless steel pipe to move to one side of the through hole 9, only a gap of 1mm exists between the stainless steel pipe and the through hole 9, the screws are separated from the magnet 14 under the action of the through hole 9, the screws are enabled to fall to the first nonmagnetic area 6 on the stainless steel pipe below from the second nonmagnetic area 8 on the stainless steel pipe at the upper end, and then the screws are discharged through the iron discharging hole 10 from the first nonmagnetic area 6.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that numerous changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. The utility model provides a be used for protecting high-speed automatic magnetic separator de-ironing who smashes which characterized in that: the device comprises a material conveying tank (1) with an inner cavity (2) and a magnetic component for adsorbing ferromagnetic substances, wherein a feeding hole (3) is formed above the material conveying tank (1), a discharging hole (4) and an iron discharging hole (10) are formed below the material conveying tank (1), a ferromagnetic substance adsorption area (15) is arranged at a position, located between the feeding hole (3) and the discharging hole (4), in the inner cavity (2), and a ferromagnetic substance discharge area (16) is arranged at a position, located above the iron discharging hole (10), in the inner cavity (2);
the magnetic component is arranged in the inner cavity (2) in a sliding mode and is provided with at least two groups along the direction from the feeding hole (3) to the discharging hole (4), and when the magnetic component moves from the ferromagnetic substance adsorption area (15) to the ferromagnetic substance discharge area (16), the ferromagnetic substance adsorbed on the magnetic component is scraped in the ferromagnetic substance discharge area (16) and falls into the iron discharge hole (10).
2. The automatic iron remover for protecting high-speed grinding according to claim 1, characterized in that: the magnetic component comprises at least one magnetic bar (5), wherein the magnetic bar (5) is provided with a first nonmagnetic area (6) and a magnetic area (7) along the axial direction of the magnetic bar (5), the first nonmagnetic area (6) does not have magnetism for adsorbing ferromagnetic substances, the magnetic area (7) has magnetism for adsorbing the ferromagnetic substances, the first nonmagnetic area (6) is located in a ferromagnetic substance discharging area (16), and the magnetic area (7) is located in a ferromagnetic substance adsorbing area (15).
3. The automatic iron remover for protecting high-speed grinding according to claim 2, characterized in that: the magnetic rod (5) comprises a tube body (13) made of a non-magnetic material, a magnet (14) is arranged in the tube body (13), a first non-magnetic area (6) is formed between the front end part of the tube body (13) and the front end part of the magnet (14), and a magnetic area (7) is formed at the position, located on the magnet (14), of the tube body (13).
4. The automatic iron remover for protecting high-speed grinding according to claim 3, characterized in that: the magnetic bar (5) is also provided with a second nonmagnetic area (8), the magnetic area (7) is positioned between the first nonmagnetic area (6) and the second nonmagnetic area (8), and the second nonmagnetic area (8) does not have magnetism for adsorbing ferromagnetic substances.
5. The automatic iron remover for protecting high-speed grinding according to claim 4, characterized in that: and a second nonmagnetic area (8) is formed between the rear end part of the pipe body (13) and the rear end part of the magnet (14).
6. The automatic iron remover for protecting high-speed grinding according to claim 2, characterized in that: the magnetic material conveying tank is characterized in that a through hole (9) matched with the magnetic rod (5) is formed in the material conveying tank (1), and one end of the magnetic rod (5) penetrates through the through hole (9) and protrudes out of the peripheral surface of the material conveying tank (1).
7. The automatic iron remover for protecting high-speed pulverization according to claims 1-6, characterized in that: and the material conveying tank (1) is provided with a power mechanism which corresponds to each group of magnetic components and drives the magnetic components to slide in a reciprocating manner.
8. The automatic iron remover for protecting high-speed grinding according to claim 7, characterized in that: the power mechanism is an air cylinder (11), the air cylinder (11) is arranged on the material conveying tank (1), and the extending end of the air cylinder (11) is arranged on the magnetic assembly.
9. The automatic iron remover for protecting high-speed grinding according to claim 8, characterized in that: magnetic component is provided with three groups along feed inlet (3) to discharge gate (4) direction, and the magnetic component that is located to be close to feed inlet (3) and discharge gate (4) both ends includes two bar magnets (5) that set up side by side each other, and the magnetic component that is located the centre includes three bar magnet (5) that set up side by side each other, and cylinder (11) have threely, and stretching out of every cylinder (11) is served and is equipped with backup pad (12), and the one end of every bar magnet (5) is fixed on corresponding backup pad (12).
10. The automatic iron remover for protecting high-speed grinding according to claim 9, characterized in that: the magnetic bars (5) between two adjacent magnetic components are arranged in a staggered way.
CN201911155978.4A 2019-11-22 2019-11-22 Automatic iron remover for protecting high-speed crushing Pending CN110694793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911155978.4A CN110694793A (en) 2019-11-22 2019-11-22 Automatic iron remover for protecting high-speed crushing

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Application Number Priority Date Filing Date Title
CN201911155978.4A CN110694793A (en) 2019-11-22 2019-11-22 Automatic iron remover for protecting high-speed crushing

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CN110694793A true CN110694793A (en) 2020-01-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114670366A (en) * 2020-12-24 2022-06-28 上海金湖挤出设备有限公司 High-efficient convenient plastic materials removes iron fillings device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002113386A (en) * 2000-10-04 2002-04-16 Magnetec Japan Ltd Apparatus for removing magnetic matter
CN201147719Y (en) * 2008-01-31 2008-11-12 赵维珂 Magnetic rod push-pull type full-automatic powder de-ironing machine
CN201783391U (en) * 2010-09-21 2011-04-06 宁克金 Permanent magnetic dry-type automatic iron removing machine
CN105107621A (en) * 2015-09-22 2015-12-02 新乡市振英机械设备有限公司 Powder de-ironing separator
CN205379972U (en) * 2015-12-02 2016-07-13 佛山市佛诺斯除铁机械设备有限公司 High -efficient full -automatic dry powder magnetic separator de -ironing
CN205659784U (en) * 2016-04-27 2016-10-26 佛山市佛诺斯除铁机械设备有限公司 High -efficient dry powder magnetic separator de -ironing of multilayer
CN211678211U (en) * 2019-11-22 2020-10-16 无锡泰克勒智能科技有限公司 Automatic iron remover for protecting high-speed crushing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002113386A (en) * 2000-10-04 2002-04-16 Magnetec Japan Ltd Apparatus for removing magnetic matter
CN201147719Y (en) * 2008-01-31 2008-11-12 赵维珂 Magnetic rod push-pull type full-automatic powder de-ironing machine
CN201783391U (en) * 2010-09-21 2011-04-06 宁克金 Permanent magnetic dry-type automatic iron removing machine
CN105107621A (en) * 2015-09-22 2015-12-02 新乡市振英机械设备有限公司 Powder de-ironing separator
CN205379972U (en) * 2015-12-02 2016-07-13 佛山市佛诺斯除铁机械设备有限公司 High -efficient full -automatic dry powder magnetic separator de -ironing
CN205659784U (en) * 2016-04-27 2016-10-26 佛山市佛诺斯除铁机械设备有限公司 High -efficient dry powder magnetic separator de -ironing of multilayer
CN211678211U (en) * 2019-11-22 2020-10-16 无锡泰克勒智能科技有限公司 Automatic iron remover for protecting high-speed crushing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114670366A (en) * 2020-12-24 2022-06-28 上海金湖挤出设备有限公司 High-efficient convenient plastic materials removes iron fillings device

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