Magnetic separation equipment for iron ore

Abstract

The utility model belongs to the technical field of iron ore magnetic separation, and particularly relates to magnetic separation equipment for iron ore, which comprises a crushing device for crushing the ore and a magnetic separation device for performing magnetic separation on the crushed ore, and an auger conveying device for conveying the crushed ore is arranged between the crushing device and the magnetic separation device. The magnetic separation device comprises a conveying belt mechanism installed on the machine frame, the conveying belt mechanism comprises a magnetic separation roller driven by a driving assembly, a driven conveying roller and a conveying belt connected between the driven conveying roller and the magnetic separation roller, and a screening assembly for screening broken stones is installed on the conveying belt. Crushed ore is conveyed to the conveying belt and conveyed along the conveying belt, a magnetic separation roller is arranged on one side of the outlet end of the conveying belt, common ore is output along with the conveying belt and enters the gravel guide groove, and iron ore is continuously adsorbed to the conveying belt by the magnetic separation roller due to magnetism and continues to rotate. The magnetic separation roller does not adsorb the iron ore, and the iron ore falls into the lower iron ore guide groove.

Description

TECHNICAL FIELD

[0001] The utility model belongs to iron ore magnetic separation technical field, concretely relates to a kind of magnetic separation equipment for iron ore. BACKGROUND

[0002] Iron ore is divided into four kinds of black iron ore, pyrite, hematite and magnetite; the percentage of iron content in iron ore is called ore grade, which is the most important indicator of ore quality; generally speaking, the grade above 45% is called rich iron ore, and the grade below 45% is called poor iron ore; iron ore is gradually selected after crushing, grinding, magnetic separation, flotation, gravity separation and other procedures, which is an important raw material for steel production enterprises.

[0003] The Chinese patent with application number CN202323354228.4 discloses an iron ore magnetic separation device for ore mining, which belongs to the technical field of ore production. It mainly includes a box body, a feed hopper fixedly connected to the top of the box body, a discharge port fixedly provided at the right side of the bottom of the box body, a distribution plate fixedly connected inside the discharge port, a rotary crushing device, a connecting cylinder and a pair of roller crushing devices fixedly provided inside the upper part of the box body, the rotary crushing device is fixedly connected to the top of the feed hopper, the rotary crushing device is fixedly connected to the bottom of the connecting cylinder, the other end of the connecting cylinder is fixedly connected to the pair of roller crushing devices, a conveying mechanism, a driving scraper mechanism and an electromagnetic drum are fixedly provided at the lower part of the box body.

[0004] The utility model discloses a rotary crushing device and a pair of roller crushing devices are arranged, which gradually crush the ore into fine concentrate, improving the effect of subsequent magnetic separation operation; however, the size of the crushed iron ore is different, and the iron ore after magnetic separation needs to be screened, so the device cannot screen the iron ore while magnetic separation. Therefore, an iron ore magnetic separation device is improved and designed. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides an iron ore magnetic separation device to solve the problems in the background art.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] An iron ore magnetic separation device includes a crushing device for crushing ore and a magnetic separation device for magnetic separation of crushed ore, a screw conveyor is arranged between the crushing device and the magnetic separation device to convey crushed ore, the magnetic separation device includes a conveyor belt mechanism mounted on a rack, the conveyor belt mechanism includes a magnetic separation roller driven by a driving assembly, a driven conveying roller and a conveyor belt connected between the driven conveying roller and the magnetic separation roller, and a screening assembly is mounted on the conveyor belt to screen the crushed stone.

[0008] Through the above structure design, the iron ore is crushed by the crushing device, and the crushed ore is conveyed to the magnetic separation device by the auger conveying device for magnetic separation.

[0009] Further, the conveying belt mechanism further comprises a track frame connected to the rack, and the magnetic roller and the driven conveying roller are rotatably installed on the track frame.

[0010] The driving assembly comprises a mounting frame fixedly connected above the track frame, and a third driving motor mounted on the mounting frame, wherein the third driving motor is connected with the magnetic roller through a transmission structure.

[0011] Further, the screening assembly comprises an arc-shaped plate connected with the mounting frame, and the bottom of the arc-shaped plate is connected with a plurality of connecting columns, wherein the connecting columns are spaced apart along the direction of the arc-shaped plate, and the distance between two adjacent connecting columns gradually increases from one side of the arc-shaped plate to the other side, so that the crushed stones of different sizes can pass through the different gaps to achieve the screening effect.

[0012] Further, the connecting column is rotatably connected with a drum.

[0013] The screening assembly is arranged on the conveying belt to preliminarily screen the crushed stones, which facilitates subsequent production and processing. Specifically, the screening assembly comprises a plurality of connecting columns, and a drum is rotatably installed on each connecting column. The distance between two adjacent connecting columns gradually increases from one side of the arc-shaped plate to the other side. During the conveying of the crushed stones, small crushed stones pass through small gaps, and large crushed stones continue to be conveyed along the conveying belt until they encounter a passable gap. Since the drum is installed on the connecting column, the crushed stones can be prevented from being stuck, thereby achieving the purpose of screening.

[0014] Further, the arc-shaped plate is connected with a plurality of separation curtains arranged along the conveying direction of the conveying belt, and the number and position of the separation curtains correspond to the connecting columns one by one. The lower side of the conveying belt is provided with an iron ore guide chute, and the iron ore guide chute is provided with a plurality of separation plates, and the number and position of the separation plates correspond to the connecting columns one by one.

[0015] Further, the crushing device comprises a crushing box fixedly installed on the top of the support frame, and two crushing rollers driven by a first driving motor are rotatably installed in the crushing box.

[0016] Further, the auger conveying device comprises an auger box connected to the discharge port below the crushing box, a second driving motor driven auger is arranged in the auger box, and a discharge pipe is connected to the discharge port end of the auger box, and the outlet of the discharge pipe is arranged above the conveying belt.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] 1. The magnetic separation equipment for iron ore is provided with a crushing device for crushing and pulverizing ore, and the crushed ore is conveyed to a magnetic separation device for magnetic separation through an auger conveying device, and the crushed ore is conveyed to a conveying belt, a magnetic roller is arranged on one side of the outlet end of the conveying belt, ordinary ore is conveyed into a crushed stone guide groove along the conveying belt, iron ore is continuously adsorbed on the conveying belt and continues to rotate due to the magnetism, and when the magnetic roller is below and gradually away from the magnetic roller, the magnetic roller is not adsorbed on the iron ore, and falls into the iron ore guide groove below;

[0019] 2. The crushed stone is preliminarily screened through the screening assembly arranged on the conveying belt, and subsequent production and processing are facilitated, and the screening assembly comprises a plurality of connecting columns, a roller is rotatably installed on the connecting column, the spacing between two adjacent connecting columns gradually increases from one side of the arc-shaped plate to the other side, small crushed stones pass through small gaps during the conveying of the crushed stones, and large crushed stones continue to be conveyed along the conveying belt until the gaps through which the large crushed stones can pass are encountered, and the installation of the roller on the connecting column can prevent the crushed stones from being stuck, so that the screening purpose is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective structural schematic view (view angle one) of an embodiment of the magnetic separation equipment for iron ore of the utility model;

[0021] Figure 2 It is a perspective structural schematic view (view angle two) of an embodiment of the magnetic separation equipment for iron ore of the utility model;

[0022] Figure 3 It is a perspective structural schematic view of the magnetic separation device in the embodiment of the magnetic separation equipment for iron ore of the utility model;

[0023] Figure 4 It is a perspective structural schematic view of the conveying belt mechanism in the embodiment of the magnetic separation equipment for iron ore of the utility model;

[0024] Figure 5 It is a perspective structural schematic view of the screening assembly in the embodiment of the magnetic separation equipment for iron ore of the utility model;

[0025] The reference signs in the drawings of the specification comprise:

[0026] Support frame (1), crushing device (2), crushing box (21), crushing roller (22), first drive motor (23), auger conveying device (3), auger box (31), discharge pipe (32), second drive motor (33), magnetic separation device (4), rack (41), conveying belt mechanism (42), track frame (421), driven conveying roller (422), conveying belt (423), magnetic separation roller (424), drive assembly (425), mounting frame (4251), third drive motor (4252), transmission structure (4253), auxiliary roller (426), gravel guide chute (43), iron ore guide chute (44), screening assembly (45), arc plate (451), connecting column (452), roller (453), partition curtain (454). DETAILED DESCRIPTION

[0027] In order to make the person skilled in the art can better understand the utility model, the following combining with the embodiment of the utility model technical scheme is further explained.

[0028] Among them, the drawing is only used for example explanation, and the representation is only a schematic diagram, and cannot be understood as the limitation of the patent; in order to better illustrate the embodiment of the utility model, some components of the drawing will be omitted, enlarged or reduced, and the size of the actual product is not represented; for those skilled in the art, it is understandable that some well-known structures in the drawing and their description can be omitted.

[0029] The same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar components; in the description of the utility model, it is understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, a particular orientation and operation, therefore the positional relationship of the terms in the drawing is only used for example explanation, and cannot be understood as the limitation of the patent, for the ordinary skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0030] In the description of the utility model, unless otherwise explicitly specified and limited, if the connection relationship between the components appears, the term should be broadly understood, for example, it can be fixedly connected, can be detachably connected, or integrated; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0031] Embodiment one:

[0032] As Figures 1-5 shown, the utility model discloses a kind of magnetic separation equipment for iron ore, including the crushing device 2 for crushing ore and the magnetic separation device 4 for carrying out magnetic separation to crushed ore, and the auger conveyor device 3 for conveying crushed ore is arranged between crushing device 2 and magnetic separation device 4, and magnetic separation device 4 includes the conveyor belt mechanism 42 installed on rack 41, and conveyor belt mechanism 42 includes the magnetic separation roller 424 driven by drive assembly 425, driven conveying roller 422 and the conveyor belt 423 connected between driven conveying roller 422 and magnetic separation roller 424, and screening assembly 45 for screening crushed stone is installed on conveyor belt 423, by the above structure design, the magnetic separation equipment for iron ore is crushed by design crushing device 2 to ore, and crushed ore is conveyed to magnetic separation device 4 by auger conveyor device 3 and carries out magnetic separation, and specific crushed ore is conveyed to conveyor belt 423 and is transported along conveyor belt 423, and the export end side of conveyor belt 423 is provided with magnetic separation roller 424, and ordinary ore is output into crushed stone guide slot 43 along with conveyor belt 423, and iron ore is continued to be adsorbed on conveyor belt 423 and continues to rotate by magnetic separation roller 424 due to magnetic, when rotating magnetic separation roller 424 below and gradually away from magnetic separation roller 424, magnetic separation roller 424 is not adsorbed iron ore, and drop into the iron ore guide slot 44 below. Conveyor belt mechanism 42 further includes the track frame 421 connected on rack 41, and magnetic separation roller 424 and driven conveying roller 422 are rotatably installed on track frame 421, and drive assembly 425 includes the mounting frame 4251 fixedly connected above track frame 421, the third drive motor 4252 installed on mounting frame 4251, and the third drive motor 4252 is connected with magnetic separation roller 424 through transmission structure 4253.

[0033] In the embodiment, the screening assembly 45 comprises an arc-shaped plate 451 connected with the mounting frame 4251, the bottom of the arc-shaped plate 451 is connected with a plurality of connecting columns 452, the connecting columns 452 are distributed at intervals along the direction of the arc-shaped plate 451, the interval between two adjacent connecting columns 452 gradually increases from one side of the arc-shaped plate 451 to the other side, so as to achieve the screening effect by allowing different sizes of gravel to pass through different gaps. The connecting columns 452 are rotatably connected with rollers 453. The screening assembly 45 is arranged on the conveying belt 423 to preliminarily screen the gravel, which facilitates subsequent production and processing. Specifically, the screening assembly 45 comprises a plurality of connecting columns 452, the connecting columns 452 are rotatably connected with rollers 453, the interval between two adjacent connecting columns 452 gradually increases from one side of the arc-shaped plate 451 to the other side, in the conveying process of the gravel, small gravel passes through small gaps, large gravel continues to be conveyed along with the conveying belt until it encounters a passable gap. Since the rollers 453 are installed on the connecting columns 452, the gravel can be prevented from being stuck, thereby achieving the screening purpose. The arc-shaped plate 451 is connected with a plurality of separation curtains 454 arranged along the conveying direction of the conveying belt 423, the number and position of the separation curtains 454 correspond to the connecting columns 452 one by one, and the conveying belt 423 is provided below with an iron ore guide chute 44, the iron ore guide chute 44 is provided with a plurality of separation plates, the number and position of the separation plates correspond to the connecting columns 452 one by one.

[0034] In the embodiment, the crushing device 2 comprises a crushing box 21 fixedly installed on the top of the support frame 1, and the crushing box 21 is rotatably installed with two crushing rollers 22 driven by a first driving motor 23.

[0035] In the embodiment, the auger conveying device 3 comprises an auger box 31 connected with the discharge port below the crushing box 21, the auger box 31 is internally provided with an auger driven by a second driving motor 33, the discharge port end of the auger box 31 is connected with a discharge pipe 32, and the outlet of the discharge pipe 32 is arranged above the conveying belt 423.

[0036] Working principle; the iron ore is crushed by the crushing device 2 of the magnetic separation equipment, the crushed ore is conveyed to the magnetic separation device 4 through the auger conveying device 3, and the crushed ore is conveyed to the conveying belt 423 and conveyed along the conveying belt 423, the outlet side of the conveying belt 423 is provided with a magnetic roller 424, ordinary ore is output into the crushed stone guide groove 43 along with the conveying belt 423, and the iron ore is continuously adsorbed on the conveying belt 423 and continues to rotate due to the magnetism, when the magnetic roller 424 below and gradually away from the magnetic roller 424, the magnetic roller 424 is not adsorbed on the iron ore, and falls into the iron ore guide groove 44 below, in the conveying process of the crushed stone, small crushed stones pass through small gaps, and large crushed stones continue to be conveyed along the conveying belt until they meet the gap that can pass, since the connecting column 452 is provided with the roller 453, the crushed stone can be prevented from being stuck, so that the screening purpose is achieved.

[0037] The above is only an embodiment of the present application, the circuit and electronic components and modules involved are prior art, and those skilled in the art can realize them without further description, the content protected by the present application does not involve improvement of software and methods. The specific structure and characteristics of the scheme known in the art are not described in detail, the ordinary skilled person in the art knows all the ordinary technical knowledge in the technical field of the present application before the application date or the priority date, can know all the prior art in the field, and has the ability to apply conventional experimental means before the date, the ordinary skilled person in the art can improve and implement the present scheme based on the enlightenment given by the present application, and some typical known structures or known methods should not be an obstacle for the ordinary skilled person in the art to implement the present application. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application.

Claims

1. A magnetic separation apparatus for iron ore, comprising a crushing device (2) for crushing the ore and a magnetic separation device (4) for magnetic separation of the crushed ore, a screw conveyor (3) for conveying the crushed ore being provided between the crushing device (2) and the magnetic separation device (4), characterized in that: The magnetic separation device (4) comprises a conveying belt mechanism (42) mounted on a rack (41), the conveying belt mechanism (42) comprises a magnetic separation roller (424) driven by a driving assembly (425), a driven conveying roller (422) and a conveying belt (423) connected between the driven conveying roller (422) and the magnetic separation roller (424), and a screening assembly (45) for screening the gravel is mounted on the conveying belt (423).

2. A magnetic separation apparatus for iron ore as claimed in claim 1, characterised in that: The conveying belt mechanism (42) further comprises a track frame (421) connected to the rack (41), and the magnetic separation roller (424) and the driven conveying roller (422) are rotatably mounted on the track frame (421). The driving assembly (425) comprises a mounting frame (4251) fixedly connected above the track frame (421), a third driving motor (4252) mounted on the mounting frame (4251), and the third driving motor (4252) is connected with the magnetic separation roller (424) through a transmission structure (4253).

3. A magnetic separation apparatus for iron ore as claimed in claim 2 wherein: The screening assembly (45) comprises an arc-shaped plate (451) connected with the mounting frame (4251), the bottom of the arc-shaped plate (451) is connected with a plurality of connecting columns (452), the connecting columns (452) are spaced apart along the direction of the arc-shaped plate (451), and the spacing between two adjacent connecting columns (452) gradually increases from one side of the arc-shaped plate (451) to the other side, so that gravel of different sizes can pass through different gaps to achieve the effect of screening.

4. A magnetic separation apparatus for iron ore as claimed in claim 3 wherein: The connecting column (452) is rotatably connected with a roller (453).

5. A magnetic separation apparatus for iron ore as claimed in claim 4 wherein: The arc-shaped plate (451) is connected with a plurality of separation curtains (454) arranged along the conveying direction of the conveying belt (423), the number and position of the separation curtains (454) correspond one-to-one with the connecting columns (452), and an iron ore guide chute (44) is arranged below the conveying belt (423), and a plurality of separation plates are arranged on the iron ore guide chute (44), and the number and position of the separation plates correspond one-to-one with the connecting columns (452).

6. A magnetic separation apparatus for iron ore as claimed in claim 1, wherein: The crushing device (2) comprises a crushing box (21) fixedly installed on the top of the support frame (1), and the crushing box (21) is rotatably installed with two crushing rollers (22) driven by a first driving motor (23).

7. A magnetic separation apparatus for iron ore as claimed in claim 6 wherein: The auger conveying device (3) comprises an auger box (31) connected to the discharge port below the crushing box (21), the auger box (31) is internally provided with an auger driven by a second driving motor (33), the discharge port end of the auger box (31) is connected with a discharge pipe (32), and the outlet of the discharge pipe (32) is arranged above the conveying belt (423).

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