CN111359775B

CN111359775B - Distributed electromagnetic multi-vertical-ring magnetic separator

Info

Publication number: CN111359775B
Application number: CN202010256026.8A
Authority: CN
Inventors: 周少川; 陈斌南; 赵恢柏; 李生龙; 颜学义
Original assignee: Yueyang Dalishen Electromagnetic Machinery Co ltd
Current assignee: Yueyang Dalishen Electromagnetic Machinery Co ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2024-09-27
Anticipated expiration: 2040-04-02
Also published as: CN111359775A

Abstract

The invention relates to a distributed electromagnetic multi-vertical-ring magnetic separator which comprises a frame, a separation cavity, a plurality of separation vertical rings, a feed pipe, a flushing pipe, a tailing channel and a programmable controller, wherein the separation vertical rings are arranged in parallel and coaxially and are connected with a main shaft, the main shaft is connected with a main shaft driving system and is arranged on the frame, a plurality of electromagnets are embedded in the outer edge of each separation vertical ring, a concentrate bucket is arranged in the middle of each separation vertical ring and is connected with a concentrate pipe, the flushing pipe is arranged above the separation vertical ring, the bottom of each separation vertical ring is positioned in the separation cavity, the feed pipe is connected with a feed hopper, the bottom of each separation cavity is provided with the tailing channel, the bottom of each tailing channel is provided with a pulsation mechanism and is connected with the tailing pipe, one end of each main shaft is provided with a slip ring group, the electric wires of the electromagnets are connected with the slip ring group through the hollow main shaft and are further connected with the controller, and the angle control device is connected with the controller. The invention has high mineral separation efficiency.

Description

Distributed electromagnetic multi-vertical-ring magnetic separator

Technical Field

The invention relates to a magnetic separator, in particular to a distributed electromagnetic multi-vertical ring magnetic separator.

Background

Permanent magnet disc type magnetic separators are used in sewage treatment and magnetite dressing, permanent magnet blocks are arranged on two sides of a disc, and the bottom of the disc is immersed in mineral liquid. During sewage treatment or ore dressing, the disc rotates directionally, the permanent magnet adsorbs magnetic seeds or iron ore to two side surfaces of the disc, and the magnetic seeds or iron ore powder is scraped down to flow into the collecting tank by the scraper.

In actual production, the phenomenon that ore cannot be completely unloaded exists due to the fact that the magnet has large adsorption force on magnetic seeds or iron ore powder and uneven gaps between the scraper blade and the disc, so that ore dressing efficiency is limited. The long-term friction between the scraping plate and the disc causes serious abrasion of the scraping plate, and the scraping plate needs to be replaced frequently, so that the service efficiency of equipment is reduced, and the maintenance cost is increased.

Disclosure of Invention

The invention aims to improve and innovate the problems of incomplete ore discharge, frequent scraper replacement and high maintenance cost existing in the background technology, and provides a distributed multi-vertical-ring magnetic separator which uses an electromagnet to replace a permanent magnet and adsorb ferromagnetic substances when the electromagnet is excited, and uses water to wash ore discharge to replace scraper ore discharge after the electromagnet is demagnetized. The invention has the technical scheme that the distributed electromagnetic multi-vertical-ring magnetic separator comprises a frame, a separation cavity, a plurality of separation vertical rings, a feed pipe, a flushing pipe, a tailing channel and a programmable controller, wherein the separation vertical rings are coaxially arranged in parallel and are all connected to a hollow main shaft, a main shaft driving system is arranged on the frame and drives the main shaft to rotate, a plurality of electromagnets are arranged on the outer edge of each separation vertical ring, the electromagnets are directionally rotated along with the vertical rings, the electromagnets are excited when immersed in mineral liquid, the two end surfaces of the electromagnets absorb ferromagnetic mineral from the mineral liquid, demagnetized and are flushed by water when the electromagnets leave the mineral liquid, a concentrate hopper is arranged between the separation vertical rings, the concentrate hopper is connected with the concentrate pipe, the flushing pipe is arranged above the separation vertical rings, a flushing branch pipe is respectively led out from two sides of each separation vertical ring, the outlet ports of the flushing branch pipe are aligned with the two ends of the electromagnets, the bottom of each separation vertical ring is positioned in the separation cavity, the feed pipe is excited by the feed pipe, the feed pipe is separated into the tailing cavity through the feed pipe, the tailing channel, the feed pipe is connected with a slip ring through the feed pipe, the slip ring is connected with a slip ring, the position of the main shaft is fixed, the position of the angle sensor is connected with the position of the main shaft through a slip ring, and the position of the angle sensor is fixed, and the angle sensor is connected with the position of the main shaft.

In one embodiment, the machine frame is provided with a liquid level box and is connected with the sorting cavity.

In one embodiment, the sorting standing ring is provided with a plurality of electromagnets uniformly distributed according to central angles.

In one embodiment, the magnetic field direction of the electromagnet is parallel to the axis of the vertical ring, the two ends of the electromagnet are used for ore dressing, the vertical ring rotates for a circle, and ore dressing and ore unloading circulation is realized by controlling excitation and demagnetization of the excitation coil.

In one embodiment, the electromagnet coil is connected with the controller through a slip ring set.

In one embodiment, the relative position of the electromagnet in the beneficiation cavity is detected by an angle control device.

The invention has the advantages and beneficial effects that:

because the electromagnet is adopted, the magnetic field intensity of the electromagnet can be controlled, the electromagnet is used for exciting ore dressing in ore pulp, and the electromagnet is separated from the ore pulp for demagnetizing and unloading ore, so that the ore dressing efficiency is improved;

Because the exciting current of the electromagnet can be conveniently adjusted according to different purposes, the applicability of the device is improved;

because the equipment does not need to stop and replace the consumable parts like the scraping plates, the equipment can work for a long time, and the equipment operation rate is improved;

the processing capacity of the equipment is improved through the parallel installation of a plurality of sorting standing rings.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the embodiment.

Fig. 2 is a left-hand structural schematic of an embodiment.

Fig. 3 is a schematic diagram of the mounting relationship of the sorting stand ring and the electromagnet.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed" on another element, it can be directly disposed or connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example 1

As shown in fig. 1-3, a distributed electromagnetic multi-vertical-ring magnetic separator comprises a frame 1, a separation cavity 2, four separation vertical rings 3, a feeding pipe 4, a flushing pipe 5, a tailing channel 6 and a programmable controller, wherein the four separation vertical rings 3 are coaxially arranged in parallel and are all connected to a hollow spindle 7, the spindle 7 is connected with a spindle driving system 8 arranged on the frame 1, each separation vertical ring 3 is externally provided with six electromagnets 9, each electromagnet rotates along with the vertical rings in a directional manner, when immersed in mineral liquid, two end faces of excitation adsorb ferromagnetic ores from the mineral liquid, when the mineral liquid leaves, a concentrate hopper 10 is arranged between the separation vertical rings 3 and is connected with a concentrate pipe 11, the flushing pipe 5 is arranged above the separation vertical rings 3, two sides of each separation vertical ring 3 are respectively led out of a flushing pipe connected with the flushing pipe 5, water outlet ports of the flushing pipe are aligned with two ends of the electromagnets 9 on the separation vertical rings 3, the bottom of the separation vertical rings 3 are positioned in the separation cavity 2, the tailing channel 4 is positioned in the separation cavity 2, the tailing channel 6 is connected with a pulse code wheel controller 14, the angle sensor is arranged at the bottom of the spindle channel 6, and is connected with a channel 6, and an angle sensor is arranged at the bottom of the spindle controller 14, and the sensor is connected with the spindle controller 14, and the angle sensor is connected with the position controller.

The machine frame 1 is provided with a liquid level box 17 and is connected with the sorting cavity 2.

The outer edge of the electromagnet 7 is arc-shaped corresponding to the outer edge of the sorting standing ring 3.

The frame 1 is provided with a pulsation driving system 18 and is connected with a pulsation mechanism 12.

The feeding pipe 4 and the tailing pipe 13 are respectively provided with a mineral inlet valve and a tailing valve, and the mineral inlet valve, the tailing valve and the liquid level box 17 are all connected with a controller.

The working principle of the invention is as follows: the electromagnet is fixed on the sorting vertical ring web plate and is connected with the main shaft through the web plate; the electromagnet coils are placed in parallel with the radial direction of the vertical ring, so that the magnetic field direction of the electromagnet is parallel to the axis of the vertical ring, the two ends of the electromagnet are used for ore dressing, the vertical ring rotates for one circle, and ore dressing and ore unloading circulation is realized by controlling excitation and demagnetization of the excitation coils; the bottom of the hopper is directly extended to two surfaces of the separating vertical ring, which are parallel to the coil, of the electromagnet.

The controller controls the electromagnet through a slip ring group (containing an electric brush), the electric brush is fixed on the machine base, the slip ring is arranged on the hollow main shaft and rotates synchronously with the sorting vertical ring, and wires connected with the slip ring and the electromagnet are routed through an inner pipe of the hollow shaft and a web plate of the sorting vertical ring. The angle sensor is fixed on the machine base, and the angle code disc is fixed on the hollow main shaft; the controller determines different positions of the electromagnet through the signals of the angle sensor, and realizes the operations of exciting, reversely demagnetizing and powering off the electromagnet.

The electromagnet rotates at a constant speed along with the separation vertical ring, is excited when immersed in mineral separation liquid, adsorbs magnetic mineral grains, stops excitation when separated from the mineral separation liquid, then is demagnetized reversely, and washes the surface of the electromagnet with clean water to unload the mineral.

The side of the frame is provided with a liquid level box for displaying the liquid level of ore pulp, a liquid level sensor is arranged in the liquid level box, a controller detects a liquid level signal, and the opening of a mineral inlet valve and a tailing valve is controlled, so that the liquid level of a mineral separation cavity is controlled to be at a given liquid level.

Minerals are added to the two surfaces of the electromagnet through the feeding hopper in the form of ore pulp, and magnetic minerals in the ore pulp are adsorbed by the two surfaces of the electromagnet, and meanwhile, non-magnetic substances mixed in the minerals can be washed out due to the existence of the pulsation mechanism. The separation vertical ring is driven by a separation vertical ring driving system to directionally rotate, an electromagnet adsorbed with weakly magnetic minerals is rotated to the top of the separation vertical ring, flushing water in a flushing water pipe is flushed to a concentrate hopper, and enrichment is completed through concentrate pipe output equipment; the nonmagnetic particles pass through the magnetic medium collecting box under the action of gravity and pulsating fluid force, flow through the tailing channel and the pulsating mechanism, and are discharged out of the equipment through the tailing pipe, so that the sorting purpose is achieved.

The sorting standing ring of the equipment adopts a vertical rotation mode, and a plurality of sorting standing rings are arranged in parallel, so that the processing capacity of the equipment is improved; the pulsation mechanism drives ore pulp to generate pulsation, so that ore grain groups in the separation area can be kept in a loose state, magnetic ore grains are more easily captured by the surface of the electromagnet, and non-magnetic ore grains enter tailings as soon as possible. These measures ensure that the machine has a larger enrichment ratio, higher separation efficiency and stronger adaptability.

The embodiments of the present invention are merely described in terms of preferred embodiments of the present invention, and are not intended to limit the spirit and scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope of the present invention, and the technical content of the present invention as claimed is fully described in the claims.

Claims

1. The utility model provides a many standing ring magnet separator of distributed electromagnetic which characterized in that: the device comprises a frame, a sorting cavity, a plurality of sorting vertical rings, a feed pipe, a flushing pipe, a tailing channel and a programmable controller, wherein the sorting vertical rings are arranged in parallel and coaxially and are all connected to a hollow main shaft, a main shaft driving system is arranged on the frame and drives the main shaft to rotate, a plurality of electromagnets are arranged on the outer edge of each sorting vertical ring, each electromagnet directionally rotates along with the vertical ring, when immersed in mineral liquid, the electromagnets are excited and the two end surfaces of the electromagnets absorb ferromagnetic mineral from the mineral liquid, when the electromagnets leave the mineral liquid, the electromagnets are demagnetized and are washed by water to remove the ferromagnetic mineral, a concentrate bucket is arranged between the sorting vertical rings, the concentrate bucket is connected with the concentrate pipe, the flushing pipe is arranged above the sorting vertical rings, a flushing branch pipe is respectively led out from two sides of each sorting vertical ring, the water outlet ports of the flushing branch pipe are aligned with the two ends of the electromagnets of the sorting vertical rings, so that the ferromagnetic mineral liquid washed from the two ends of the electromagnets flows into the concentrate bucket, the bottoms of the sorting vertical rings are positioned in the sorting cavity, the feed pipe is used for conveying the turbid mineral liquid through the feeding branch pipes, the tailing cavity is separated from the concentrate bucket, the tailing channel is arranged at the bottom of the tailing cavity, the tailing channel is arranged at the bottom of the tailing channel, the bottom of the tailing channel is connected with a slip ring, and the angle controller is connected with a slip ring is arranged at the position of the main shaft, and the angle controller is connected with the position of the main shaft, and is fixed by a corresponding angle controller, and the angle controller is arranged at a position of the spindle, and is connected with the angle controller, and is arranged at a position controller, and comprises a corresponding angle sensor device and is arranged; the magnetic field direction of the electromagnet is parallel to the axis of the standing ring, the two ends of the electromagnet are used for ore dressing, the vertical ring rotates for one circle, mineral separation and mineral discharge circulation is realized by exciting and demagnetizing the exciting coil, the electromagnet coil is connected with the controller through the slip ring group, and the relative position of the electromagnet in the mineral separation cavity is detected through the angle control device.