Device for removing magnetic substances in pulverized coal

Abstract

The utility model provides a device for removing magnetic substances in pulverized coal, and aims to solve the technical problems that the conventional equipment needs to be shut down when removing the magnetic substances in the pulverized coal, and the efficiency is low. The removing device comprises a rotating wheel capable of continuously rotating; the permanent magnets are arranged around the rotating wheel by one circle; the discharging groove is located obliquely above one side of the rotating wheel, the discharging groove is obliquely arranged, and one end of the discharging groove is close to the wheel face of the rotating wheel; the scraping plate is located on the other side of the rotating wheel, and the scraping plate makes contact with the surface of the rotating wheel; the powder trough is arranged below the rotating wheel, and the powder trough and the discharging trough are located on the same side of the rotating wheel; the magnetic material groove is formed below the rotating wheel, and the magnetic material groove and the scraper blade are located on the same side of the rotating wheel; when the rotating wheel rotates, one position on the surface of the rotating wheel firstly passes through the discharging groove and then passes through the scraping plate. The removing device has the advantages that magnetic substances in the pulverized coal can be continuously removed, and the treatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a powder coal forming technical field, concretely relates to a kind of removal device of magnetic substance in powder coal. BACKGROUND

[0002] In the powder coal forming technology, powder coal is used as main raw material, and in the process of treating powder coal, magnetic substance is screened out, which is mainly generated by mechanical impact and falling during mining and crushing. The magnetic substance will oxidize to form oxide in high temperature, and the flue gas after burning with briquette will cause serious environmental pollution when discharged into the atmosphere. The existing magnetic substance removal equipment needs to be cleaned regularly to remove the adsorbed magnetic substance, which requires shutdown for processing, thus resulting in low efficiency. SUMMARY

[0003] To solve the technical problem of low efficiency caused by shutdown during removing magnetic substance in powder coal by existing equipment, the utility model provides a kind of removal device of magnetic substance in powder coal, which can continuously remove magnetic substance in powder coal and improve processing efficiency.

[0004] The technical scheme of the utility model is as follows:

[0005] A kind of removal device of magnetic substance in powder coal, comprising:

[0006] Rotary wheel, which can rotate continuously;

[0007] Multiple permanent magnets, arranged around the rotary wheel;

[0008] Discharge chute, located obliquely above the rotary wheel on one side, the discharge chute is inclined, and one end is close to the wheel surface of the rotary wheel;

[0009] Scraper, located on the other side of the rotary wheel, the scraper is in contact with the surface of the rotary wheel;

[0010] Powder chute, located below the rotary wheel and on the same side of the rotary wheel as the discharge chute;

[0011] Magnetic material chute, located below the rotary wheel and on the same side of the rotary wheel as the scraper;

[0012] Wherein, when the rotary wheel rotates, a position on its surface first passes through the discharge chute and then the scraper.

[0013] Optionally, multiple shunt plates are arranged in the end of the discharge chute close to the rotary wheel.

[0014] Optionally, two sides of the feeding groove are symmetrically provided with arc-shaped baffles, the cross section of the baffle is also arc-shaped, the baffle is coaxially arranged with the runner, and there is a spacing between the baffle and the surface of the runner.

[0015] Optionally, the runner is power-connected to the output shaft of a motor.

[0016] Optionally, the surface of the runner is provided with a concave flow guide groove.

[0017] Optionally, the side of the runner is provided with a plurality of flow guide plates, and all the flow guide plates are located between the feeding groove and the powder groove.

[0018] Optionally, the inclination angles of all the flow guide plates decrease from top to bottom.

[0019] Optionally, the scraper is inclined and opposite to the inclination direction of the feeding groove.

[0020] Optionally, the powder groove and the magnetic material groove are in a splayed shape.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] A runner that can continuously rotate is designed, a plurality of permanent magnets are installed on the circumference of the inner side of the runner, the pulverized coal is sent to the surface of the runner through the feeding groove, under the action of the permanent magnets, the magnetic substances in the pulverized coal are adsorbed on the surface of the runner, the pulverized coal from which the magnetic substances are removed falls into the powder groove and is recycled, the magnetic substances adsorbed on the surface of the runner are rotated to the scraper, under the action of the scraper, the magnetic substances are separated from the surface of the runner and fall into the magnetic material groove and are recycled.

[0023] Through the technical scheme, the magnetic substances in the pulverized coal can be continuously and completely removed, and the purpose of high efficiency is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] Figure 1 It is a three-dimensional structure schematic view of the present application;

[0026] Figure 2 It is an internal structure schematic view of the present application;

[0027] Figure 3 It is a half-section structure schematic view of the present application;

[0028] Figure 4 Fig. 2 is a schematic view of an internal structure of a blanking groove. DETAILED DESCRIPTION

[0029] In the following certain example embodiments are simply described. As will be appreciated by those skilled in the art, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0030] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0031] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplifying the present application, the components and settings of specific examples are described in the following. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides various specific examples of processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0032] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0033] Embodiment:

[0034] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4The embodiment discloses a device for removing magnetic substances from pulverized coal, which comprises a rotating wheel 10, permanent magnets (not shown in the figure), a feeding chute 20, a scraper 30, a powder chute 40 and a magnetic material chute 50. The rotating wheel 10 can rotate continuously and uniformly, and the axis of the rotating wheel 10 is arranged on a horizontal plane. Usually, the shaft of the rotating wheel 10 is power-connected with the output shaft of a motor (not shown in the figure), so that the rotating wheel 10 is continuously driven to rotate by the motor.

[0035] The inner side of the rotating wheel 10 is a hollow structure, and the inner wall of the rotating wheel 10 is connected with the shaft for driving the rotating wheel 10 to rotate through a connecting piece between the connecting rods. A plurality of permanent magnets are arranged on the inner wall of the rotating wheel 10, all the permanent magnets are arranged around the circumference of the rotating wheel 10, and all the permanent magnets cover the inner wall of the rotating wheel 10. In addition, all the permanent magnets are connected with the inner wall of the rotating wheel 10.

[0036] The feeding chute 20 is arranged on one side of the rotating wheel 10, and the feeding chute 20 is arranged in an inclined direction. One end of the feeding chute 20 is close to the rotating wheel 10, and there is a gap between the end of the feeding chute 20 and the outer side of the rotating wheel 10. The other end of the feeding chute 20 is arranged in an inclined upward direction away from the rotating wheel 10.

[0037] The scraper 30 is arranged on the other side of the rotating wheel 10, and one side edge of the scraper 30 is in contact with the surface of the rotating wheel 10. The scraper 30 is also arranged in an inclined manner, and the side of the scraper 30 away from the rotating wheel 10 is inclined upward in a direction away from the rotating wheel 10. The inclined direction of the scraper 30 is opposite to the inclined direction of the feeding chute 20.

[0038] The powder chute 40 is located below the feeding chute 20, and the powder chute 40 is also located below the rotating wheel 10. The projection of the end of the feeding chute 20 close to the rotating wheel 10 on the horizontal plane is completely located in the powder chute 40.

[0039] The magnetic material chute 50 is located below the scraper 30, and the magnetic material chute 50 is also located below the rotating wheel 10. The projection of the side of the scraper 30 in contact with the outer surface of the rotating wheel 10 on the horizontal plane is completely located in the magnetic material chute 50. The powder chute 40 and the magnetic material chute 50 are distributed in an eight-character shape, so that the magnetic substances and the pulverized coal can be respectively transported to different positions.

[0040] When the rotating wheel 10 rotates, a position on the outer surface of the rotating wheel 10 first passes through the feeding chute 20, then passes through the scraper 30, and rotates in this way.

[0041] In this embodiment, a rotating runner 10 is designed, and a plurality of permanent magnets are installed on the circumference of the inner side of the runner 10. Then, the pulverized coal is sent to the surface of the runner 10 through the feeding chute 20, and under the action of the permanent magnets, the magnetic substances in the pulverized coal are adsorbed on the surface of the runner 10. The pulverized coal from which the magnetic substances are removed falls into the powder chute 40 and is recycled. The magnetic substances adsorbed on the surface of the runner 10 are rotated to the scraper 30, and under the action of the scraper 30, they are separated from the surface of the runner 10 and fall into the magnetic material chute 50 and are recycled. Through this technical solution, the magnetic substances in the pulverized coal can be completely removed.

[0042] In one specific embodiment:

[0043] A plurality of flow distribution plates 21 are arranged in one end of the feeding chute 20 close to the runner 10. At least two rows of flow distribution plates 21 are arranged in the feeding chute 20, and the two rows of flow distribution plates 21 are arranged in a staggered manner. All the flow distribution plates 21 are triangular prisms, and the cross section of the flow distribution plate 21 is an isosceles triangle. When installed, the side of the flow distribution plate 21 close to the runner 10 is the base.

[0044] In this embodiment, the flow distribution plate 21 is arranged to make the pulverized coal evenly spread on the surface of the runner 10.

[0045] In another specific embodiment:

[0046] Arc-shaped baffles 22 are symmetrically arranged on both sides of the feeding chute 20. The cross section of the baffle 22 is also arc-shaped. The baffle 22 is coaxially arranged with the runner 10, and there is a gap between the baffle 22 and the surface of the runner 10. The cross sections of the two baffles 22 are in an eight-shaped structure. By arranging the arc-shaped baffle 22, the pulverized coal can be prevented from leaking from the axial direction on the surface of the runner 10.

[0047] Preferably, an arc-shaped cover plate is arranged on the side of the two rows of baffles 22 away from the runner 10, and a straight cover plate is arranged on the top surface of the feeding chute 20.

[0048] In another specific embodiment:

[0049] The surface of the runner 10 has a concave flow guide groove 11. Through this design, it can be ensured that the pulverized coal can completely be on the surface of the runner 10.

[0050] And it can cooperate with the arc-shaped baffle 22 to completely prevent the pulverized coal from leaking.

[0051] In another specific embodiment:

[0052] The side of the rotating wheel 10 is provided with a plurality of guide plates 12, all of which are located between the material discharging groove 20 and the powder groove 40. By arranging the guide plates 12, the pulverized coal can be guided to the surface of the rotating wheel 10 again when moving away from the surface of the rotating wheel 10, so as to ensure that the magnetic substances in the pulverized coal are completely screened out.

[0053] Preferably, the inclination angles of all the guide plates 12 decrease from top to bottom, which are relative to the vertical plane. Since the pulverized coal falls faster as it is closer to the powder groove 40, the contact time of the pulverized coal with the surface of the rotating wheel 10 can be increased by reducing the inclination angles of the guide plates 12.

[0054] The above-described embodiments only express the specific implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as the limitation of the patent scope of the present application. It should be pointed out that, for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A device for removing magnetic substances from pulverized coal, characterized in that, include: The wheel can rotate continuously; Multiple permanent magnets are arranged around the circumference of the rotating wheel; The feeding chute is located diagonally above one side of the rotating wheel. The feeding chute is inclined, with one end close to the wheel surface of the rotating wheel. A scraper is located on the other side of the rotating wheel, and the scraper is in contact with the surface of the rotating wheel; A powder trough is located below the rotary wheel and on the same side of the rotary wheel as the feeding trough; A magnetic material trough is located below the rotating wheel and on the same side of the rotating wheel as the scraper; When the rotary wheel rotates, one position on its surface first passes through the feeding trough and then through the scraper.

2. The device for removing magnetic substances from pulverized coal according to claim 1, characterized in that, The feeding trough is equipped with multiple diversion plates at one end near the rotor.

3. The device for removing magnetic substances from pulverized coal according to claim 1, characterized in that, The feeding trough is symmetrically provided with arc-shaped baffles on both sides. The cross-section of the baffles is also arc-shaped. The baffles are coaxially arranged with the rotating wheel, and there is a gap between the surface of the baffles and the rotating wheel.

4. The device for removing magnetic substances from pulverized coal according to claim 1, characterized in that, The rotor is powered by the output shaft of a motor.

5. The device for removing magnetic substances from pulverized coal according to claim 1, characterized in that, The surface of the impeller has concave guide grooves.

6. The device for removing magnetic substances from pulverized coal according to claim 1, characterized in that, The side of the impeller is provided with multiple guide plates, all of which are located between the feed trough and the powder trough.

7. The device for removing magnetic substances from pulverized coal according to claim 6, characterized in that, The tilt angle of all the aforementioned deflectors decreases from top to bottom.

8. The device for removing magnetic substances from pulverized coal according to claim 1, characterized in that, The scraper is inclined and in the opposite direction to the inclination of the feed trough.

9. The device for removing magnetic substances from pulverized coal according to claim 1, characterized in that, The powder trough and the magnetic material trough are arranged in a figure-eight shape.

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