Magnetic separation device of magnetic separator

Abstract

The utility model relates to the field of magnetic separators, and discloses a magnetic separation device of a magnetic separator, which comprises a frame, and a feeding channel, a screen, a crushing mechanism, a conveyor belt and a multi-stage drum-type magnetic separator which are arranged on the frame, the conveyor belt is horizontally arranged, the screen is arranged above the conveyor belt, and the multi-stage drum-type magnetic separator is arranged on the frame. The screening net is arranged on the conveying belt and provided with a first end and a second end in the conveying direction of the conveying belt, the smashing mechanism is arranged below the first end and located between the first end and the conveying belt, the feeding channel is arranged above the second end, the multi-stage drum-type magnetic separator is arranged below the tail end of the conveying belt, and the multi-stage drum-type magnetic separator is arranged below the tail end of the conveying belt. The multi-stage drum-type magnetic separator has the beneficial effects that the sieving net and the crushing mechanism are matched with the multi-stage drum-type magnetic separator, so that raw materials are reasonably sieved and crushed before a multi-stage drum-type magnetic separation process, and magnetic substances in the materials are efficiently separated under the action of a multi-stage magnetic field.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of magnetic separator, especially a magnetic separation device of magnetic separator. BACKGROUND

[0002] Magnetic separation technology is a method of separating materials based on the difference in magnetic force they experience in a magnetic field. It is widely used in mineral processing, resource recovery, environmental protection, and other fields. In the magnetic separation process, multi-stage drum-type magnetic separators have become an indispensable part of magnetic separation equipment due to their high separation efficiency and large handling capacity.

[0003] However, before multi-stage drum-type magnetic separation, the particle size and uniformity of the raw material have a significant impact on the separation efficiency. If there are a large number of blocky or coarse particulate materials in the raw material, it will not only affect the separation efficiency of the magnetic separator, but also may cause the surface of the drum to be blocked or worn, reducing the service life of the equipment. Since the working principle of the magnetic separator is based on the difference in force experienced by particles in a magnetic field, the size, shape, and surface state of the particles will significantly affect the magnetic separation efficiency.

[0004] In order to improve the separation efficiency of multi-stage drum-type magnetic separators, the raw material must be adequately pretreated before the magnetic separation process. Common pretreatment methods include sieving and crushing. The purpose of sieving is to separate large particles from fine particles that meet the requirements, avoiding interference with the subsequent magnetic separation process. Crushing is to break down large particle materials to achieve an appropriate particle size range for efficient separation by the magnetic separator.

[0005] In the prior art, most magnetic separation equipment does not pay enough attention to the pretreatment process during design and use, or only uses simple sieving treatment, resulting in poor separation efficiency. Secondly, if only simple sieving and crushing mechanisms are added, higher requirements for the site will be imposed, and therefore, how to reasonably sieve and crush the raw material before the multi-stage drum-type magnetic separation process to improve the separation efficiency and reduce the space occupied by the equipment through improved layout has become a problem to be solved in the field. INVENTION CONTENTS

[0006] The utility model aims to provide a magnetic separation device of magnetic separator to solve the problem of existing magnetic separation equipment paying enough attention to the pretreatment process, or only using simple sieving treatment, resulting in poor separation efficiency, and if only simple sieving and crushing mechanisms are added, higher requirements for the site will be imposed, and the equipment will occupy more space. The specific technical solution is as follows:

[0007] The magnetic separation device of the magnetic separator comprises a rack, a feeding channel, a screening net, a crushing mechanism, a conveying belt and a multi-stage drum-type magnetic separator arranged on the rack, the conveying belt is arranged horizontally, the screening net is arranged above the conveying belt, the screening net is provided with a first end and a second end along the conveying direction of the conveying belt, the screening net is arranged obliquely so that the first end is lower than the second end, the crushing mechanism is arranged below the first end and between the first end and the conveying belt, the feeding channel is arranged above the second end, and the multi-stage drum-type magnetic separator is arranged below the end of the conveying belt, and the top surface of the conveying belt is provided with a plurality of protrusions arranged at intervals on both sides.

[0008] As one of the improvements of the above technical scheme, the magnetic separator further comprises a blocking plate connected to the rack and arranged above the conveying belt, the blocking plate is arranged along the length direction of the conveying belt, and a sliding groove for accommodating the protrusions is arranged on the bottom of the blocking plate and in sliding fit with the protrusions.

[0009] As one of the improvements of the above technical scheme, the first supporting rod and the second supporting rod are arranged in parallel on the rack, and the first end and the second end of the screening net are overlapped on the first supporting rod and the second supporting rod respectively.

[0010] As one of the improvements of the above technical scheme, the guide plates are hingedly arranged on both sides of the screening net, the first supporting rod is inserted into the first opening of the guide plate, and the second supporting rod is inserted into the second opening of the guide plate.

[0011] As one of the improvements of the above technical scheme, the lower half of the guide plate is bent inward.

[0012] As one of the improvements of the above technical scheme, the top surface of the conveying belt is covered with an elastic buffer layer.

[0013] The magnetic separator has the advantages that the screening net, the crushing mechanism and the multi-stage drum-type magnetic separator are arranged in cooperation, the raw materials are reasonably screened and crushed before the multi-stage drum-type magnetic separation process, the separation efficiency is improved, the multi-stage magnetic field is used to efficiently separate the magnetic substances in the materials, the space occupied is minimized by optimizing the positions of the screening net and the crushing mechanism on the conveying belt, and the conveying efficiency is improved by arranging the protrusions on both sides of the top surface of the conveying belt.

[0014] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood by the practice of the present application, of course, any product or method of the present application does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a structural schematic diagram of the present application.

[0017] Figure 2 is a structural schematic diagram of the conveyor belt of the present application.

[0018] Figure 3 is another structural schematic diagram of the conveyor belt of the present application.

[0019] Figure 4 is a structural schematic diagram of the blocking plate of the present application.

[0020] Figure 5 is a structural schematic diagram of the screening net of the present application.

[0021] In the figure: 1, rack; 2, feeding channel; 3, crushing mechanism; 4, conveyor belt; 5, screening net; 6, multi-stage drum-type magnetic separator; 7, blocking plate; 41, protruding part; 42, elastic buffer layer; 51, guide plate; 71, chute. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments only constitute some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] In this paper, the phrase "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment that is not mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in this paper can be combined with other embodiments.

[0024] Generally, the raw material must be fully pretreated before the magnetic separation process, and common pretreatment methods include screening and crushing. The purpose of screening is to separate large particles from fine particles that meet the requirements, to avoid interference with the subsequent magnetic separation process. Crushing is to break up large particles of material to achieve an appropriate particle size range to facilitate efficient separation by the magnetic separator. Please refer to Figures 1-5 In the embodiment of the utility model, a magnetic separation device of a magnetic separator includes a rack 1, a feeding channel 2, a screening mesh 5, a crushing mechanism 3, a conveyor belt 4 and a multi-stage drum-type magnetic separator 6 arranged on the rack 1. The conveyor belt 4 is arranged horizontally. The screening mesh 5 is arranged above the conveyor belt 4. The screening mesh 5 is provided with a first end and a second end along the transportation direction of the conveyor belt 4. The screening mesh 5 is arranged obliquely so that the first end is lower than the second end. The crushing mechanism 3 is arranged below the first end and between the first end and the conveyor belt 4. The feeding channel 2 is arranged above the second end. The multi-stage drum-type magnetic separator 6 is arranged below the end of the conveyor belt 4. The top surface of the conveyor belt 4 is provided with a plurality of protruding parts 41 arranged at intervals on both sides.

[0025] The feeding channel 2 is arranged above the rack 1 to uniformly feed the materials to be separated to the screening mesh 5. Since the screening mesh 5 is arranged obliquely and above the conveyor belt 4, the materials can be preliminarily screened. Large materials that do not meet the requirements will roll along the screening mesh 5 under the action of gravity and fall into the crushing mechanism 3 to crush the large particles of materials that pass through the screening mesh 5, facilitating subsequent magnetic separation. The crushing mechanism 3 is arranged above the conveyor belt 4. Therefore, after crushing, the crushing mechanism 3 will discharge the materials onto the conveyor belt 4. That is, the materials discharged from the crushing mechanism 3 and the materials screened by the screening mesh 5 will all fall onto the same conveyor belt 4 and be fed to the subsequent multi-stage drum-type magnetic separator 6. Since the screening mesh 5 and the crushing mechanism 3 are arranged above the conveyor belt 4, the occupied space can be minimized.

[0026] The conveyor belt 4 is responsible for transmitting the materials backward. A plurality of protruding parts 41 arranged at intervals are arranged on both sides of the top surface of the conveyor belt 4 to prevent the materials from sliding off and improve the conveying efficiency. It can be understood that, since the materials will directly fall onto the conveyor belt 4 after passing through the screening mesh 5, a plurality of protruding parts 41 are arranged at the edges of the top surface of the conveyor belt 4 to prevent the materials from sliding off. Considering that the two ends of the conveyor belt 4 usually need to be bent, a plurality of protruding parts 41 arranged at intervals are arranged instead of a simple baffle to avoid extrusion. Preferably, an elastic buffer layer 42 is arranged on the top surface of the conveyor belt 4. The material of the elastic buffer layer 42 can be rubber. The elastic buffer layer 42 can buffer the falling materials.

[0027] Multi-stage drum magnetic separator 6: arranged below the end of the conveying belt 4, which uses multi-stage magnetic field to separate the magnetic material in the material and achieve the complete separation of the non-magnetic material and the magnetic material.

[0028] Working principle and effect:

[0029] The material falls evenly on the inclined screen 5 through the feeding channel 2, and the larger material slides to the crushing mechanism 3 under the action of gravity for crushing treatment; the small particle material passes through the screen 5 and directly falls on the conveying belt 4. On the conveying belt 4, the setting of the convex part 41 effectively prevents the material from sliding off and ensures that the material can be stably conveyed to the multi-stage drum magnetic separator 6.

[0030] At the end of the conveying belt 4, the material is sent into the multi-stage drum magnetic separator 6 for separation, and the magnetic material and the non-magnetic material are separated by the action of multiple magnetic fields of different strengths in turn, thereby achieving the effect of efficient separation.

[0031] Regarding the multi-stage drum magnetic separator 6, it is a device for separating mixtures of minerals, magnetic or other magnetic materials, which is composed of multiple magnetic selection bins connected in series or linkage, and each magnetic selection bin is rotatably connected with a permanent magnet drum to separate flat material and non-magnetic material by continuous rotation.

[0032] In some embodiments, a blocking plate 7 is further included, which is connected to the rack 1 and arranged above the conveying belt 4, the blocking plate 7 is arranged along the length direction of the conveying belt 4, and the bottom of the blocking plate 7 is provided with a chute 71 for accommodating the convex part 41, the chute 71 is in sliding fit with the convex part 41, and the blocking plate 7 can not only prevent the material from sliding off the conveying belt 4, but also can play a guiding role by setting the chute 71 matched with the convex part 41.

[0033] Preferably, the screen 5 is detachably connected with the rack 1 to facilitate the replacement of the screen 5 with different aperture sizes, specifically, the first support rod 8 and the second support rod 9 are connected in parallel on the rack 1, the first end and the second end of the screen 5 are respectively lapped on the first support rod 8 and the second support rod 9, and the two sides of the screen 5 are respectively hinged with guide plates 51, the guide plates 51 are provided with first and second openings, the first support rod 8 is inserted into the first opening, and the second support rod 9 is inserted into the second opening, in addition, the lower half of the guide plate 51 is inwardly bent, and the guide plate 51 is further arranged to avoid the material falling to the edge of the conveying belt 4;

[0034] It should be noted that the terms "first", "second" and the like in the description and in the claims are used only for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the descriptive terms "first", "second", etc. are to be interpreted, by those skilled in the art, as a structural or positional description and not by their reference

[0035] It will be apparent to those skilled in the art that the present application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the present application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A magnetic separation device for a magnetic separator, characterized in that, The device includes a frame and a feeding channel, a screen, a crushing mechanism, a conveyor belt, and a multi-stage drum magnetic separator mounted on the frame. The conveyor belt is horizontally positioned, and the screen is positioned above the conveyor belt. The screen has a first end and a second end along the transport direction of the conveyor belt. The screen is inclined so that the first end is lower than the second end. The crushing mechanism is positioned below the first end and between the first end and the conveyor belt. The feeding channel is positioned above the second end. The multi-stage drum magnetic separator is positioned below the end of the conveyor belt. The top surface of the conveyor belt has several spaced protrusions on both sides.

2. The magnetic separation device of a magnetic separator according to claim 1, characterized in that: It also includes a barrier plate, which is connected to the frame and disposed above the conveyor belt. The barrier plate is disposed along the length of the conveyor belt, and the bottom of the barrier plate is provided with a groove for receiving the protrusion. The groove slides in cooperation with the protrusion.

3. The magnetic separation device of a magnetic separator according to claim 2, characterized in that: The frame is connected to a first support rod and a second support rod arranged in parallel, and the first end and the second end of the screen are respectively attached to the first support rod and the second support rod.

4. The magnetic separation device of a magnetic separator according to claim 3, characterized in that: Guide plates are hinged to both sides of the sieve screen. The guide plates are provided with a first opening and a second opening. The first support rod is inserted into the first opening and the second support rod is inserted into the second opening.

5. The magnetic separation device of a magnetic separator according to claim 4, characterized in that: The lower half of the guide plate is bent inward.

6. The magnetic separation device of a magnetic separator according to claim 1, characterized in that: The top surface of the conveyor belt is covered with an elastic buffer layer.

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