WO2019119247A1

WO2019119247A1 - Micro powder iron remover

Info

Publication number: WO2019119247A1
Application number: PCT/CN2017/117052
Authority: WO
Inventors: 徐飞; 徐孟喜; 李林
Original assignee: 淄博盛金稀土新材料科技股份有限公司; 徐飞
Priority date: 2017-12-18
Filing date: 2017-12-18
Publication date: 2019-06-27

Abstract

Disclosed is a micro powder iron remover, comprising a supporting frame (2), wherein an electric motor (9) is fixed to the supporting frame (2); a housing (3, 10) is arranged in the supporting frame (2); a material inlet (7) is provided at the top of the housing (3, 10), and an iron outlet (16) and a material outlet (1) are provided at the bottom thereof; and the interior of the housing (3, 10) serves as a working chamber (17). The micro powder iron remover further comprises two magnetic roller assemblies (6, 15) arranged in the working chamber (17) and mounted on the supporting frame (2) by means of bearings, wherein an inclined material-receiving plate (5.1) is arranged below the magnetic roller assemblies (6, 15), a lower magnetic drum assembly (15) is arranged below the material-receiving plate (5.1), and end portions of the two magnetic roller assemblies (6, 15) are respectively coupled to the electric motor (9) by means of transmission mechanisms. Using the micro powder iron remover can improve the effect of iron removal and reduces production costs.

Description

Micro powder iron remover

Technical field

The invention belongs to the field of magnetic separation for separating magnetic substances in dry materials, and is a fully automatic magnetic separator for carbon powder, graphite, refractory materials, ceramics, building materials, silicon micro powder, quartz powder and other micro powder industries.

Background technique

With the development of industry, the iron removal requirements of carbon black, graphite, refractory materials, ceramics, building materials, silicon micropowder, quartz powder and other industries are increasingly demanding high quality, with excellent sorting equipment, increasing automation procedures, and achieving Larger throughput, improve the quality of mineral materials at the input end of relevant industries, reduce waste in the production process, and obtain high economic benefits and product quality. However, from the current market conditions, the separation magnetic separators are mostly single-layer, and the carbon black industry requires a temperature resistance of 150 ° C. The magnets with normal temperature performance are demagnetized seriously, and the magnets used are low in magnetic force, generally in the range of 2000 to 3000 GS. The adsorption capacity and magnetic separation results of magnetic materials are not ideal enough to meet the needs of users, which seriously hinders the development of production and the improvement of product quality. Therefore, it is very necessary to develop a new magnetic separator with multiple selection, high magnetic field strength and strong adsorption capacity.

The production of various fine powders, the excessive standard of iron powder in the mineral materials will greatly affect the quality and quality of the products;

1 In the prior art, the iron is removed by a magnetic frame, and no matter which part of the process the iron removal link is placed, the medium of the iron remover is the resistance of the production flow. Moreover, the magnetic material adsorbed by the magnetic frame is manually removed at intervals, and even the line is processed, which is time consuming and laborious. If a suspended iron remover (or a suspended automatic iron remover) is used, the sorting (iron removal) of the process must be exposed, and the magnetic material is difficult to clean. Insufficient iron removal capacity, environmentally unfriendly defects, and increased equipment will in turn increase production costs. 2 In the prior art, the magnetic system is easily demagnetized in a high temperature environment of 150 ° C, and the iron removal effect is greatly reduced. 3 In the prior art, the magnetic force on the surface of the magnetic roller is between 2000 and 3000 GS, and it is difficult to remove fine magnetic substances and weak magnetic substances in the material.

In the iron-iron industry, the existence of iron, incomplete sorting, unclean iron removal, primitive operation, manual intervention by people, and low degree of automation will make people reluctantly and eager to change the status quo. The survival and development of related industries proposes to change the above-mentioned problems, and it is undoubtedly the industry's very earnest expectation.

technical problem

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a micro-powder iron removing machine, which can improve the iron removing effect and reduce the production cost.

Technical solution

The technical solution adopted by the present invention to solve the technical problem is to design a micro-powder iron removing machine, comprising a supporting frame, a motor is fixed on the supporting frame, a casing is arranged inside the supporting frame, and a feeding port is opened at the top of the casing, An iron outlet and a discharge opening are formed at the bottom, and the inside of the housing is a working chamber; and a magnetic roller assembly is disposed on the working chamber and mounted on the support frame through a bearing, and the magnetic roller assembly includes an upper magnetic roller and a lower magnetic roller. The magnets in the upper magnetic roller or the lower magnetic roller are semicircularly distributed, an inclined receiving plate is arranged below the upper magnetic roller, and a lower magnetic roller is arranged below the receiving plate, and the ends of the upper magnetic roller and the lower magnetic roller respectively pass through a transmission mechanism and The motor is coupled; an iron plate is further disposed under the upper magnetic roller, and both the iron plate and the receiving plate are obliquely mounted and inclined in opposite directions; the magnetic roller assembly includes a magnetic roller end shaft, a main shaft, an end plate, and an outer tube joint, Bearing chamber, bearing cover plate, support plate, slats and strong magnets and strong magnets are fixed on the slats; the magnets are magnetized in the direction of magnetization, and the magnets are magnetized in the direction of magnetization; by The rear casing is tightly combined by the respective left and right side panels; the iron plate is connected with a closed passage directly to the bottom of the iron outlet; the outer side of the transmission mechanism is equipped with a protective cover; the transmission mechanism is a chain transmission or a belt transmission; The magnetic roller is located directly below the feed port; the lower end of the lower magnetic roller is adjacent to the intersection of the taphole and the discharge port.

Beneficial effect

Compared with the prior art, the beneficial effects of the present invention are:

1. The whole process: the input of mineral material, the output of mineral material and iron material after sorting, is completed in the completely sealed working shell, without manual intervention, it is an automatic sorting process, which improves the iron removal. effectiveness. 2. Adopting the boom-arm planetary friction type continuously variable transmission, the magnetic roller speed can be adjusted to the optimal state, which is convenient for speed regulation of various working conditions, and has strong working condition adaptability. 3. The two-stage magnetic roller assembly is discharged in a concentrated manner, and the iron and discharge are strictly separated. The magnetically selected iron impurities are completely separated from the material by the arrangement of the upper and lower split plates. 4. Strictly sealed housing prevents dust from escaping and avoids environmental pollution. 5. The magnetic material inside the magnetic roller is made of a temperature-resistant 150°C NdFeB rare earth permanent magnet material, which is not demagnetized for a long time. The material does not need to be cooled to normal temperature and then processed. It can be directly connected to the production line for processing, which improves the efficiency. 6. The surface magnetic force of the magnetic roller assembly can reach 6000~7000GS. Due to the strong magnetic force on the surface of the magnetic roller assembly, the fine magnetic properties in the material can be adsorbed. Substances and weak magnetic materials greatly improve the quality of materials. 7. Through the special magnetic system arrangement, the magnetic lines on the surface of the magnetic roller are dense, which greatly reduces the omission of magnetic substances.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention

Figure 2 is a left side view of the present invention

Figure 3 is a cross-sectional view of the present invention

Figure 4 is a schematic view showing the structure of a super-strong magnetic roller assembled by a magnet

Figure 5 is a schematic view of a strong magnet repelling block

Figure 6 is a schematic view of a strong magnet

Figure 7 is a schematic view of the front housing structure

Figure 8 is a schematic view of the rear housing structure

Figure 9 is a schematic view of the overall structure of the housing

The figure is marked as: 1. discharge port, 2. support frame, 3. front case, 4. magnetic angle adjustment mechanism, 5. distribution plate, 5.1 receiving plate, 5.2 iron plate, 6. upper magnetic roller 7. Feeding port, 8. Motor bracket, 9. Motor, 10 rear housing, 11. Housing bearing, 12. Motor guard, 13. Sprocket, 14. Chain, 15. Lower magnetic roller, 16. Outlet, 17. Working chamber; 6.1 end shaft, 6.2 end disc, 6.3 outer cylinder section, 6.4 spindle, 6.5 lath, 6.6 disc, 6.7 bearing chamber, 6.8 bearing cover, 6.9 strong magnet, 6.10 strong magnet Repel the block.

BEST MODE FOR CARRYING OUT THE INVENTION

The description of the preferred embodiment of the invention is entered here.

Embodiments of the invention

The present invention will be further described below in conjunction with the embodiments of the drawings:

As shown, the carbon black magnetic separator includes a support frame 2, a magnetic roller assembly, a motor 9, a transmission mechanism, and a housing. A motor 9 is fixed on the support frame 2, a casing is arranged inside the support frame 2, a feed inlet 7 is formed at the top of the casing, an iron outlet 16 is opened at the bottom, a discharge port 1 is provided, and the inside of the casing is a working chamber 17; Also included is a magnetic roller assembly disposed in the working chamber 17 and mounted on the support frame 2 by bearings. The magnetic roller assembly includes an upper magnetic roller 6 and a lower magnetic roller 15, and the magnets in the upper magnetic roller 6 or the lower magnetic roller 15 are semicircular The circumferential distribution, the inclined receiving plate 5.1 is disposed below the upper magnetic drum 6, and the lower magnetic roller 15 is disposed below the receiving plate 5.1, and the ends of the upper magnetic roller 6 and the lower magnetic roller 15 are respectively coupled to the motor 9 through a transmission mechanism; An iron plate 5.2 is further disposed under the upper magnetic drum 6, and both the iron plate 5.2 and the receiving plate 5.1 are obliquely mounted and inclined in opposite directions; the magnetic roller assembly includes a magnetic roller end shaft 6.1, a main shaft 6.4, an end plate 6.2, and an outer Tube section 6.3, bearing chamber 6.7, bearing cover 6.8, support plate 6.6, slat 6.5 and strong magnet 6.9 fixed on the slat and strong magnet repulsion block 6.10; strong magnet 6.9 radial magnetization in the magnetization direction, strong magnet Repelling block 6.9 magnetization direction is magnetized left and right; the casing is passed by the front and rear casings through their respective left Right panel tightly bonded; 5.2 iron connected with a closed channel is connected directly to the bottom taphole 16; the channel using magnetic isolation material. The outer side of the transmission mechanism is equipped with a protective cover; the transmission mechanism is a chain drive or a belt drive; the upper magnetic roller 6 is located directly below the feed port 7; the lower end of the lower magnetic roller is adjacent to the intersection of the taphole 16 and the discharge port 1; The number of roller assemblies is two sets, which are respectively disposed on the upper and lower sides of the receiving plate 5.1. The distribution plate 5 includes a receiving plate 5.1 and an iron plate 5.2.

Support frame

As shown in Fig. 2, the visible portion in the figure is the left side of the magnetic separator, and accordingly, the direction in which the magnetic separator is leftward in the figure is the front and the rightward direction in the present invention. The support frame 2 is internally provided with a fixed casing (the front casing 3 and the rear casing 10). The top of the casing assembly has a feed opening 7, a bottom opening and an iron outlet 16, and a discharge port 1 is opened obliquely forward. As shown in FIGS. 7, 8, and 9, the casing is formed by the front casing 3 and the rear casing 10 being tightly coupled by a sealing strip, and a working chamber capable of accommodating the magnetic roller and ensuring the sorting work is formed inside. 17. The front and rear casings are made of SUS304 stainless steel which is difficult to magnetize, and the front and rear casings are tightly combined to prevent dust pollution.

Magnetic roller assembly

The magnetic roller used in this embodiment is a semi-magnetic system design, and the two groups of structures, functions and components have the same relative position, that is, the number of sorting stages is two, and can be divided into the upper magnetic roller 6 according to the different mounting positions thereof. Lower magnetic roller 15. As shown in Figures 3 and 4, the magnetic roller assembly consists of a magnetic roller end shaft 6.1, a main shaft 6.4, an end plate 6.2, an outer cylinder segment 6.3, a bearing chamber 6.7, a bearing cover 6.8, a support plate 6.6, a slat 6.5, and a plate. The strong magnet 6.9 on the strip 6.5 and the strong magnet repel block 6.10. The outer cylinder segment 6.3 is rotated relative to the magnetic roller assembly as a whole, and the support plate 6.6 is fixed relative to the magnetic roller assembly as a whole. The strong magnet 6.9 and the strong magnet repelling block 6.10 are made of a material having a temperature resistance of 150 ° C and a magnetic induction strength. NdFeB. As shown in Figures 5 and 6, the magnetron 6.9 is magnetized in the direction of magnetization, and the magnet repellent block 6.10 is magnetized in the magnetization direction. The magnet assembly is fixed on the slat 6.5 with stainless steel screws. The outward extension of the magnetic force increases. The small polar moment and multi-magnetic magnetic system design increase the number of magnetic inversions and promote the discharge of miscellaneous stones. The magnet assembly angle of the magnet assembly is generally around 140°, which effectively extends the length of the sorting zone and improves the magnetic iron recovery rate. The outer structure of the bearing (bearing chamber 6.7 and bearing cover 6.8) is more convenient for bearing replacement. The magnetic roller outer tube section 6.3 is wrapped with SUS304 stainless steel to protect the magnet from falling off and damage. Both the magnetic roller end shaft 6.1 and the main shaft 6.4 are fixed to the support frame 2 by the seat bearing 11 , and the upper magnetic roller is mounted directly below the feed opening 7 .

Since it is a two-stage sorting, in order to improve the sorting quality, a picking plate 5.1 and an iron plate 5.2 are disposed under the upper magnet roller 6, both of which are obliquely mounted, and the tilting directions are opposite. The specific arrangement is shown in FIG. 3: the receiving plate 5.1 and the iron plate 5.2 are located between the upper and lower magnetic rollers, and the working chamber 17 is divided into two parts, an upper and a lower working chamber. The upper end of the receiving plate 5.1 is located at a position directly below the upper magnetic drum 7, and the lower end is inclined toward the front. The material after the first stage sorting falls from the working chamber into the lower working chamber via the receiving plate 5.1, waiting for the first After the second sorting is completed, it is discharged from the discharge port 1. The upper end of the iron plate 5.2 is located on the upper side of the receiving plate 5.1, the lower end is inclined rearward, and the magnetic substance is guided directly into the lower working chamber through the iron plate 5.2 and discharged from the bottom tapping port 16. The iron plate 5.2 is connected to the tap hole 16 which is closed to the bottom of the bottom plate. The iron plate 5.2 is arranged to directly discharge the magnetic material sorted by the first stage without being adsorbed to the lower magnet roller 15. In order to facilitate the smooth discharge of the material and the magnetic material, the lower magnetic drum 15 is installed at the junction of the discharge port 1 and the tap hole 16 so that the material can be dropped and discharged under the action of gravity.

Motor-transmission mechanism

A motor bracket 8 is mounted on the rear side of the support frame 2, and on the left side of the motor bracket 8 near the support frame 2, a motor 9 for driving the rotation of the outer cylinder section 6.3 is mounted. The motor 9 adopts a continuously variable speed reducer motor, and only needs to set operating parameters according to different requirements during use. The transmission mode uses chain drive, and the specific connection method is as follows:

The sprocket 13 is mounted on the motor main shaft, and when the two sprocket wheels 13 are respectively connected to the magnetic roller assembly on the end shafts 6.1 of the upper magnetic roller and the lower magnetic roller, the sprocket and the upper magnetic roller end of the motor main shaft are first used by one chain 14. The sprocket of the shaft is coupled, and then the other chain couples the sprocket of the upper magnetic drum and the sprocket of the lower magnetic drum end shaft.

In operation, the speed of the motor 9 is set between 40 and 200 rpm. In order to protect the normal operation of the motor 9 and the sprocket 13 and other related components, it is necessary to protect it. Therefore, the motor shroud 12 is installed at the corresponding position to cover the motor 9 and other related components to reduce the contamination of foreign objects such as dust. . In the present invention, the magnetic rollers are at least one set, and may be added to three groups in order to improve the sorting precision, and the installation and position of the components may be set according to the installation position and manner of the example.

The working principle and working process of the invention are as follows:

The motor 9 is started. As shown in FIG. 3, the magnetic roller assembly rotates counterclockwise. After the parameters are set, the material is fed from the feed port 7, and the material is first contacted with the upper magnet roller 6. Since the upper magnet roller 6 rotates counterclockwise, the material flows through the magnetic field region along its rotation direction, and the magnetic material is immediately captured by the strong magnetic force and adsorbed on the roller adsorption surface of the semicircular magnetic system. Under the action of its own weight, the material falls in its direction of rotation and falls onto the lower magnet roller 15 at the direction of the receiving plate 5.1. The magnetic substance adsorbed on the outer wall of the upper magnetic drum 6 during the first-stage sorting will continue to rotate with the upper magnetic drum 6, and when the magnetic substance is brought to the lower non-magnetic area, the magnetic traction of the upper magnetic drum 6 is lost, and the self-weight acts. Next, it enters the lower working chamber under the guidance of the iron plate 5.2, and finally is discharged through the tap hole 16. In this process, due to the barrier of the iron plate 5.2, the magnetic substance does not come into contact with the lower magnetic drum 15, and thus can be directly discharged without being secondarily adsorbed.

The material coming to the lower magnetic roller 15 will be subjected to secondary sorting. The primary sorting is rough selection, so there is still a certain amount of magnetic material in the material. The process and principle of the second sorting are the same as the primary sorting. The material rotates with the lower magnetic drum 15 and is discharged from the discharge port 1 by gravity and centrifugal force. The magnetic substance is still brought to the non-magnetic area of the lower part of the lower magnetic drum, and is directly discharged through the tap hole 16 under the action of its own weight.

The whole process: 1. The input of mineral material, the output of mineral material and iron material after sorting, is completed in the completely sealed working shell, without manual intervention, it is an automatic sorting process, which improves the iron removal. effectiveness. 2. Adopting the boom-arm planetary friction type continuously variable transmission, the magnetic roller speed can be adjusted to the optimal state, which is convenient for speed regulation of various working conditions, and has strong working condition adaptability. 3. The two-stage magnetic roller assembly is discharged in a concentrated manner, and the iron and discharge are strictly separated. The magnetically selected iron impurities are completely separated from the material by the arrangement of the upper and lower split plates. 4. Strictly sealed housing prevents dust from escaping and avoids environmental pollution. 5. The magnetic material inside the magnetic roller is made of a temperature-resistant 150°C NdFeB rare earth permanent magnet material, which is not demagnetized for a long time. The material does not need to be cooled to normal temperature and then processed. It can be directly connected to the production line for processing, which improves the efficiency. 6. The surface magnetic force of the magnetic roller assembly can reach 6000~7000GS. Due to the strong magnetic force on the surface of the magnetic roller assembly, the fine magnetic properties in the material can be adsorbed. Substances and weak magnetic materials greatly improve the quality of materials. 7. Through the special magnetic system arrangement, the magnetic lines on the surface of the magnetic roller are dense, which greatly reduces the omission of magnetic substances.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art may use the above-disclosed technical contents to change or modify the equivalent equivalent. Example. However, any simple modifications, equivalent changes and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still within the scope of protection of the technical solutions of the present invention.

Industrial applicability

Type the industrial usability description paragraph here.

Sequence table free content

Type the sequence table free content description paragraph here.

Claims

A micro-powder iron removing machine comprises a supporting frame, and a motor is fixed on the supporting frame, wherein a casing is arranged inside the supporting frame, a feeding inlet is arranged at the top of the casing, and an iron outlet and a discharge opening are opened at the bottom. The inside of the housing is a working chamber; further comprising a magnetic roller assembly disposed in the working chamber and mounted on the support frame by a bearing, the magnetic roller assembly comprising an upper magnetic roller and a lower magnetic roller, and a magnet in the upper magnetic roller or the lower magnetic roller For the semicircular distribution, an inclined receiving plate is arranged below the upper magnetic roller, and a lower magnetic roller is arranged below the receiving plate, and the ends of the upper magnetic roller and the lower magnetic roller are respectively coupled to the motor through a transmission mechanism.
The micro-powder iron remover according to claim 1, wherein an iron plate is further disposed under the upper magnet roller, and both the iron plate and the binder plate are obliquely mounted and inclined in opposite directions.
The fine powder iron removing machine according to claim 1, wherein the magnetic roller assembly comprises a magnetic roller end shaft, a main shaft, an end plate, an outer cylinder joint, a bearing chamber, a bearing cover plate, a support plate, a slat and a plate fixed thereto. Strong magnets and strong magnets on the strip repel the block.
The fine powder iron remover according to claim 3, wherein the magnetization direction of the strong magnet is radial magnetization, and the magnetization direction of the strong magnet repelling block is magnetization left and right.
A fine powder iron remover according to claim 1, 2, 3 or 4, wherein the casing is formed by tightly joining the front and rear casings through respective left and right side panels.
The fine powder iron remover according to claim 2, wherein the iron plate is connected with a tap hole that closes the passage to the bottom.
A fine powder iron remover according to claim 1, 2, 3 or 4, characterized in that the outer side of the transmission mechanism is provided with a protective cover.
A fine powder iron remover according to claim 1, 2, 3 or 4, wherein the transmission mechanism is a chain drive or a belt drive.
A fine powder iron remover according to claim 1, 2, 3 or 4, wherein the upper magnet roller is located directly below the feed port.
A fine powder iron remover according to claim 1, 2, 3 or 4, wherein the lower end of the lower magnetic cylinder is adjacent to the intersection of the taphole and the discharge port.