Iron piece adsorption device

Abstract

The utility model relates to the technical field of pulverized coal iron removal, in particular to an iron piece adsorption device which comprises a strip-shaped magnetic field generating part, a movable shielding part, a chip removal bin and a telescopic driving assembly. The movable shielding part is movably arranged on the outer side of the magnetic field generating part in a sleeving mode and used for shielding the outer side of the magnetic field generating part to guide iron chips to be attracted, and the length of the movable shielding part is at least two times that of the magnetic field generating part. The movable shielding component comprises an adsorption part and a chip removal part, the adsorption part coincides with the magnetic field generating component, the chip removal part and the magnetic field generating component are staggered, and the chip removal bins are installed on the two sides of the discharging chute. Scrap iron cleaning is carried out under the condition that pulverized coal conveying is not stopped, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of iron removal technology from pulverized coal, and in particular to an iron adsorption device. Background Technology

[0002] Pulverized coal is the main fuel for rotary kilns in cement plants, and the stability of its delivery directly affects the stability of the flame inside the kiln. By accurately measuring and controlling the pulverized coal delivery through a Schenck scale, the pulverized coal can enter the kiln in the appropriate amount, ensuring the stability of the flame shape, temperature, and intensity, and providing a good thermal environment for clinker calcination. However, during the raw coal mining process, coal mining equipment may produce some impurities such as iron filings mixed in with the pulverized coal. The measurement system of the weighing equipment is usually based on specific physical principles and electronic circuits. Iron is a metallic object and may interfere with the magnetic field and electric field of the measurement system. In addition, there are many mechanical moving parts in the weighing equipment, such as the star-shaped rotary feeder in the rotary feeding system and the measuring wheel in the metering system. After iron pieces enter, they may get stuck between these parts, hindering the normal rotation of the parts and preventing the equipment from operating normally. Therefore, it is necessary to adsorb and remove iron pieces from the pulverized coal before it enters the weighing equipment.

[0003] Rotary magnetic separators, through continuous rotation, allow the magnetic rods to maintain all-around and continuous contact with pulverized coal. Compared to drawer-type magnetic separators, they cover a wider area of ​​pulverized coal for iron removal per unit time. Especially under conditions of high pulverized coal flow and high iron impurity content, rotary magnetic separators can effectively adsorb a large amount of iron impurities in a timely manner due to their high iron removal efficiency, effectively preventing the accumulation of iron impurities in the chute and ensuring smooth material discharge. Therefore, rotary magnetic separators are currently widely used in pulverized coal discharge chutes. However, when cleaning iron filings, the magnetic rods of the rotary magnetic separator are pulled out, requiring a shutdown to interrupt the output of pulverized coal. The magnetic rods are then reinserted into the discharge chute after cleaning before the machine can be restarted for pulverized coal conveying, which affects work efficiency.

[0004] Based on the above situation, we propose an iron adsorption device to solve the above problems. Utility Model Content

[0005] This invention provides an iron adsorption device to solve the problem in the prior art that the machine needs to be stopped to clean up the iron filings adsorbed, which affects work efficiency.

[0006] The technical problem solved by this utility model is achieved by the following technical solution:

[0007] An iron filings adsorption device includes a strip-shaped magnetic field generating component, a movable shielding component, a chip discharge bin, and a telescopic drive assembly. The magnetic field generating component is rotatably installed inside a feed chute to generate a magnetic field to adsorb iron filings in pulverized coal. The movable shielding component is movably sleeved on the outside of the magnetic field generating component to shield the outside of the magnetic field generating component and guide the adsorption of iron filings. The length of the movable shielding component is at least twice that of the magnetic field generating component. The movable shielding component includes an adsorption part that overlaps with the magnetic field generating component and a chip discharge part that is offset from the magnetic field generating component. The chip discharge bin is installed on both sides of the feed chute. The telescopic drive assembly is used to drive the movable shielding component to move axially. When the telescopic drive assembly drives the movable shielding component to offset from the magnetic field generating component, the chip discharge part enters the chip discharge bin, and the iron filings lose the magnetic attraction force of the magnetic field generating component and fall into the chip discharge bin.

[0008] Preferably, one of the chip removal bins is equipped with a drive motor, and the output end of the drive motor is equipped with a first connecting plate. The first connecting plate is equipped with a connecting rod that is connected to one end of the magnetic field generating component.

[0009] Preferably, a movable partition is rotatably connected between the chip discharge bin and the discharge chute. The movable partition has through holes for the movable shielding component to pass through, and the two movable partitions are connected by a linkage rod. A connecting column is connected between the first connecting plate and one of the movable partitions.

[0010] Preferably, the telescopic drive assembly is movably installed inside the chip discharge bin via a movable disc, and the output end of the telescopic drive assembly is connected to one end of the movable shielding component via a second connecting disc.

[0011] Preferably, the inner wall of the through hole is provided with a plurality of flexible baffles equidistantly arranged along its axial circumference.

[0012] Preferably, both of the chip discharge bins have a chip outlet at their output ends for discharging iron filings.

[0013] The beneficial effects of this utility model are as follows: the telescopic drive assembly drives the movable shielding component to move on the magnetic field generating component. When the chip removal part enters the chip removal bin, the iron chips on the chip removal part fall into the chip removal bin due to the magnetic attraction force of the magnetic field generating component, thus removing the iron chips. At the same time, the other end of the movable shielding component moves to the magnetic field generating component, which can also adsorb and clean the iron chips in the coal powder conveyed in the feed chute. Through the reciprocating motion of the movable shielding component, iron chip cleaning can be carried out without stopping the coal powder conveying, thus improving work efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 A cross-sectional structural schematic diagram provided for this utility model;

[0016] Figure 2 A schematic diagram of the installation structure of the magnetic field generating component provided by this utility model;

[0017] Figure 3 A schematic diagram of the installation structure of the movable shielding component provided by this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure of the two movable partitions in this utility model.

[0019] In the diagram, 1 is the magnetic field generating component; 2 is the feeding chute; 3 is the movable shielding component; 31 is the adsorption part; 32 is the chip removal part; 4 is the chip removal bin; 41 is the chip outlet; 5 is the telescopic drive assembly; 6 is the drive motor; 61 is the first connecting plate; 62 is the connecting rod; 7 is the movable partition; 71 is the through hole; 72 is the linkage rod; 73 is the connecting column; 74 is the flexible baffle; 8 is the movable plate; and 81 is the second connecting plate. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0021] Reference Figures 1-4As shown, an iron filings adsorption device includes a strip-shaped magnetic field generating component 1. The magnetic field generating component 1 can be a strong magnetic rod or the like, and there can be multiple magnetic field generating components 1 arranged equidistantly in a circle to improve the adsorption effect on iron filings. It is rotatably installed inside a chute 2 used for conveying pulverized coal to generate a magnetic field to adsorb iron filings in the pulverized coal. A movable shielding component 3 is also provided on the outside of the magnetic field generating component 1 to shield the outside of the magnetic field generating component 1 and guide the adsorption of iron filings. When iron cores are present in the pulverized coal, under the action of the magnetic field generating component 1, the iron filings are adsorbed onto the movable shielding component covering the outside of the magnetic field generating component 1. On component 3, and the length of the movable shielding component 3 is at least twice that of the magnetic field generating component 1. The movable shielding component 3 includes an adsorption part 31 that overlaps with the magnetic field generating component 1 and a chip removal part 32 that is offset from the magnetic field generating component 1. Two chip removal bins 4 are provided on both sides of the discharge chute 2, that is, at both ends of the magnetic field generating component 1. In order to realize the axial movement of the movable shielding component 3, a telescopic drive assembly 5 is also provided. When the telescopic drive assembly 5 drives the movable shielding component 3 to be offset from the magnetic field generating component 1, the chip removal part 32 enters the chip removal bin 4, and the iron chips lose the magnetic attraction force of the magnetic field generating component 1 and fall into the chip removal bin 4.

[0022] Specifically, when the telescopic drive assembly 5 drives the movable shielding part 3 to change position on the magnetic field generating part 1, if the movable shielding part 3, which shields the magnetic field generating part 1, is located inside the feed chute 2, it can adsorb iron filings inside the feed chute 2. When the telescopic drive assembly 5 drives it to move, the adsorption part 31, which was originally located inside the feed chute 2, moves to the chip discharge bin 4. At this time, the original adsorption part 31 becomes the chip discharge part 32, and the original chip discharge part 32 moves into the feed chute 2 and covers the magnetic field generating part 1, becoming the adsorption part 31 to continue adsorbing iron filings. This process is repeated, and iron filings can be cleaned and removed without stopping the coal powder conveying in the feed chute 2, thus improving work efficiency.

[0023] Reference Figures 1-2 As shown, further, a drive motor 6 is provided on one of the chip discharge bins 4. The output end of the drive motor 6 is connected to a first connecting plate 61, and the first connecting plate 61 is provided with a connecting rod 62 connected to one end of the magnetic field generating component 1. The magnetic field generating component 1 is connected to the first connecting plate 61 through the connecting rod 62, and the drive motor 6 drives multiple magnetic field generating components 1 to rotate in the feed chute 2, so as to uniformly adsorb the iron filings in the coal powder falling in the feed chute 2.

[0024] Reference Figure 4As shown, a movable partition 7 is rotatably connected between the chip discharge bin 4 and the discharge chute 2. A through hole 71 is provided on the movable partition 7 for the movable shielding component 3 to pass through. The two movable partitions 7 are connected by a linkage rod 72. A connecting column 73 is connected between the first connecting plate 61 and one of the movable partitions 7. When the drive motor 6 drives the first connecting plate 61 to rotate, causing the magnetic field generating component 1 to rotate synchronously, the two movable partitions 7 can be driven to rotate synchronously through the connecting column 73. Thus, the movable shielding component 3 rotates synchronously with the rotation of the magnetic field generating component 1.

[0025] To prevent coal dust from entering the chip discharge bin 4 from the feed chute 2, multiple flexible baffles 74 are provided on the inner wall of the through hole 71 at equal intervals along its axial circumference. The flexible baffles 74 can be made of elastic materials such as rubber. They are placed around the through hole 71 to block coal dust from entering the chip discharge bin 4. When the movable shielding component 3 carries adsorbed iron filings into the chip discharge bin 4, the iron filings can open the flexible baffles 74 by resisting them, allowing the iron filings to enter the chip discharge bin 4 through the through hole 71.

[0026] Reference Figures 1-4 As shown, the telescopic drive assembly 5 is further movably installed inside the chip removal bin 4 via the movable disk 8, and the output end of the telescopic drive assembly 5 is connected to one end of the movable shielding component 3 via the second connecting disk 81. The telescopic drive assembly 5 can be a device such as an electric telescopic rod that can drive the movable shielding component to move linearly back and forth. The telescopic drive assembly 5 drives the movable shielding component 3 to reciprocate into the chip removal bins 4 on both sides for cleaning iron filings. At the same time, when the movable partition 7 rotates, it will drive the movable shielding component 3 to rotate, and the telescopic drive assembly 5 can rotate synchronously with it via the movable disk 8.

[0027] Reference Figures 1-4 As shown, in order to discharge the iron filings, a chip outlet 41 is provided at the output end of the chip discharge chamber 4, which can discharge the iron filings falling from the chip discharge section 32 in a unified manner, and a collection container can be set at the chip outlet 41 to collect and process the iron filings in a unified manner.

Claims

1. An iron piece adsorbing device characterized by comprising: The utility model relates to a kind of magnetic field generating components (1) including; Magnetic field generating components (1) in strip, the magnetic field generating components (1) are rotatably installed in blanking chute (2), for generating magnetic field to adsorb iron filings in coal powder; Movable shielding component (3), the movable shielding component (3) is movably sleeved outside magnetic field generating components (1), for shielding outside magnetic field generating components (1) to guide iron filings adsorption, and the length of the movable shielding component (3) is at least twice that of magnetic field generating components (1), the movable shielding component (3) includes coinciding with magnetic field generating components (1) adsorption part (31) and misaligned with magnetic field generating components (1) scrap removal part (32); Scrap removal bin (4), the scrap removal bin (4) is installed on both sides of blanking chute (2); Telescopic drive assembly (5), the telescopic drive assembly (5) is used to drive the movable shielding component (3) moves along its axial direction, when the telescopic drive assembly (5) drives movable shielding component (3) and misaligned with magnetic field generating components (1), the scrap removal part (32) enters scrap removal bin (4), iron filings lose the magnetic attraction force of magnetic field generating components (1) and fall into scrap removal bin (4).

2. The apparatus according to claim 1, wherein One of the scrap removal bin (4) is provided with driving motor (6), the output end of the driving motor (6) is provided with first connecting disc (61), the first connecting disc (61) is provided with connecting rod body (62) connected with one end of magnetic field generating components (1).

3. The apparatus according to claim 2, wherein The scrap removal bin (4) is rotatably connected with movable baffle (7) between blanking chute (2), the movable baffle (7) is provided with through hole (71) for movable shielding component (3) to pass through, and two movable baffle (7) are connected by linkage rod (72), and the first connecting disc (61) is connected with one movable baffle (7) between connection column (73).

4. The apparatus of claim 1, wherein the apparatus further comprises a plurality of magnets. The telescopic drive assembly (5) is movably installed in the inside of scrap removal bin (4) by movable disc (8), and the output end of the telescopic drive assembly (5) is connected with one end of movable shielding component (3) by second connecting disc (81).

5. The apparatus according to claim 3, wherein The inner wall of the through hole (71) is provided with a plurality of flexible flaps (74) that are equidistantly arranged along the axis.

6. The apparatus of claim 1, wherein the apparatus further comprises a plurality of magnets. The output end of two scrap removal bin (4) is provided with the scrap outlet (41) for discharging iron filings.

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