Coal impurity removal device

Abstract

The utility model discloses a coal impurity removal device, which belongs to the technical field of coal processing and comprises a box body, a feed port arranged at the top of the box body and a discharge port arranged at the bottom of the box body. The first rotating roller is rotationally installed in the box body, and the electromagnets are arranged on the outer side of the first rotating roller in an annular array mode, so that metal impurities in coal can be adsorbed through the electromagnets in the rotating process of the first rotating roller; the electric conduction mechanism is composed of a block-shaped electric conduction piece at the end of the first rotating roller, an arc-shaped electric conduction piece and a circular electric conduction piece which are arranged on the inner end face of the box body, and the collecting mechanism is composed of an impurity collecting groove, an impurity discharging opening, a second rotating roller and a hook-shaped collecting plate. And the electromagnet close to the collecting mechanism is automatically powered off, and impurities on the electromagnet can automatically fall off and are collected and stored by the collecting mechanism, so that magnetic separation and impurity removal are more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of impurity removal devices, in particular to a kind of coal impurity removal device, belong to coal processing technical field. BACKGROUND

[0002] If the impurities in coal contain magnetic substances (such as some iron-containing minerals), they can be removed by using magnetic differences. When the mixture of coal and impurities passes through a magnetic field, magnetic impurities will be attracted to the magnetic poles of a magnetic separation device, while non-magnetic coal particles are not affected by the magnetic field, thus achieving separation.

[0003] The prior art, such as the utility model with application number 202122756947.3, discloses a coal impurity removal device. A battery is used to energize the spiral-shaped electric wires, creating a magnetic field on the iron column and transmitting the magnetic field to the screen. The screen can adsorb iron-containing impurities and remove them through the screen end face hole and in cooperation with the vibration motor, thus reducing the waste of time, labor and cost.

[0004] However, the above-mentioned application still has some deficiencies:

[0005] During the magnetic separation of coal, the adsorbed material on the electromagnet cannot be automatically cleaned. The adsorbed material on the surface of the electromagnet will be scraped off due to the impact force during coal conveying, re-entering the coal material and affecting the magnetic separation effect. The cleaning of the adsorbed material is also inconvenient.

[0006] Therefore, a coal impurity removal device is designed to optimize the above problems. UTILITY MODEL CONTENTS

[0007] The main purpose of the utility model is to provide a coal impurity removal device to solve the problems raised in the background art.

[0008] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0009] A coal impurity removal device includes a box, a feed inlet opened at the top of the box, and a discharge outlet opened at the bottom of the box. A conveyor belt is horizontally arranged on the inside bottom of the box near the feed inlet. A first rotating roller is rotatably installed on the top of the conveyor belt between the two ends of the box. Electromagnets are evenly arranged on the outer side of the first rotating roller. An electrically conductive mechanism is provided at the end of the first rotating roller. A impurity collection tank is provided on the side of the box away from the feed inlet. A receiving assembly is provided inside the impurity collection tank. A first motor is installed on the outer end face of the box to control the rotation of the first rotating roller.

[0010] Preferably, the electromagnets on the outer side of the first rotating roller are arranged in four groups, and the shape of the electromagnets is comb-shaped.

[0011] Preferably, the conductive mechanism comprises block conductive sheets, arc conductive sheets and circular conductive sheets, the block conductive sheets are arranged in an annular array at two ends of the first rotating roller respectively, and the block conductive sheets are electrically connected with the electromagnets respectively, one end inside the box body is fixed with the arc conductive sheet, and the outer side of the arc conductive sheet is attached to the block conductive sheet, the other end inside the box body is fixed with the circular conductive sheet, and the circular conductive sheet is electrically connected with the block conductive sheet.

[0012] Preferably, the distance between the two ends of the arc conductive sheet is greater than the length of the block conductive sheet.

[0013] Preferably, a foreign matter discharging port is formed on the side of the box body away from the feeding port, and a transparent window is formed on the foreign matter discharging port.

[0014] Preferably, the receiving assembly comprises a second rotating roller and a hook-shaped collecting plate, the second rotating roller is rotatably installed between the two ends of the box body and above the foreign matter collecting groove, and the outer side of the foreign matter collecting groove is uniformly provided with the hook-shaped collecting plate.

[0015] Preferably, a second motor is installed on the end of the second rotating roller and outside the box body, and the second rotating roller rotates at the same speed as the first rotating roller.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The first rotating roller is rotatably installed inside the box body, and the outer side of the first rotating roller is provided with electromagnets in an annular array, so that the metal impurities in the coal can be adsorbed by the electromagnets during the rotation of the first rotating roller, and then the first rotating roller end block conductive sheet and the arc conductive sheet and the circular conductive sheet on the inner end face of the box body form a conductive mechanism, and the foreign matter collecting groove, the foreign matter discharging port, the second rotating roller and the hook-shaped collecting plate form a collecting mechanism, when the first rotating roller rotates to a specified position, the electromagnets close to the collecting mechanism are automatically powered off, the impurities on the electromagnets can automatically fall off and be collected and stored by the collecting mechanism, so that the magnetic separation and impurity removal are more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view of the utility model;

[0019] Figure 2 It is a front view of the utility model;

[0020] Figure 3 It is a front view of the utility model; Figure 1 It is an enlarged view of A in the figure;

[0021] Figure 4 It is a partial structure view of the utility model.

[0022] In the figure: 1, box; 101, feed inlet; 102, discharge port;

[0023] 2, conveying belt;

[0024] 3, first rotating roller;

[0025] 4, electromagnet;

[0026] 5, conductive mechanism; 501, block-shaped conductive piece; 502, arc-shaped conductive piece; 503, circular conductive piece;

[0027] 6, impurity collection groove; 601, impurity discharge port; 602, second rotating roller; 603, hook-shaped collection plate;

[0028] 7, first motor;

[0029] 8, second motor. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0031] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but only represents some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] It should be noted that the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0033] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0034] In the description of the utility model, it needs to explain, the term "upper", "lower" and other indicated position or position relation is based on the position or position relation shown in the drawing, or is the position or position relation of the invention product when using the usual place, or is the position or position relation that the person skilled in the art usually understands, these terms are only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore, it can not be understood as the limitation of the utility model.In addition, the terms "first", "second" and the like are only used for distinguishing description, and can not be understood as indicating or implying relative importance.

[0035] Embodiment 1

[0036] As Figure 1 , Figure 2 , Figure 3 And Figure 4 Indicated, the embodiment proposes a coal impurity removal device, including box 1, the feed inlet 101 of being set in the top of box 1 and the discharge port 102 of being set in the bottom of box 1, the inside bottom of box 1 is close to the side of feed inlet 101 and is horizontally provided with conveying belt 2, the top of conveying belt 2 and between the both ends of box 1 are rotatably installed with first rotating roller 3, the outside of first rotating roller 3 is uniformly provided with electromagnet 4 along the circumference, the end of first rotating roller 3 is equipped with electric conduction mechanism 5, the side away from feed inlet 101 in the inside of box 1 is equipped with impurity collection groove 6, the inside of impurity collection groove 6 is equipped with receiving assembly, the outer end face of box 1 is installed with the first motor 7 of controlling the rotation of first rotating roller 3.

[0037] When coal is impurity removal, coal is injected from feed inlet 101 first, coal falls into the top of conveying belt 2, then is transported towards discharge port 102, and in the process of conveying, first rotating roller 3 rotates and drives electromagnet 4 to rotate, the rotating direction of electromagnet 4 is opposite to the conveying direction of coal, in the rotating process of first rotating roller 3, the position of electromagnet 4 is continuously changed, the impurities in coal are adsorbed by different electromagnets 4, when electromagnet 4 on first rotating roller 3 enters the inside of impurity collection groove 6, the electromagnet 4 circuit at this place is in the off state, the impurities adsorbed on the surface of electromagnet 4 automatically fall down, are received by receiving assembly, then fall into the inside of impurity collection groove 6 and are stored, and after electromagnet 4 leaves the inside of impurity collection groove 6, the circuit restores to the on state, continues to magnetically attract the metal impurities in coal, the impurities on the surface of electromagnet 4 can be automatically cleaned and collected.

[0038] Embodiment 2

[0039] The scheme in embodiment 1 is further introduced in combination with specific working mode, and details are described as follows:

[0040] AsFigure 4 As shown, in a preferred embodiment, based on the above method, four sets of electromagnets 4 are arranged on the outer side of the first rotating roller 3, and the shape of the electromagnets 4 is comb-shaped. The comb-shaped electromagnets 4 can increase the contact area with the coal, improve the magnetic attraction effect, and will not cause significant interference to the conveying of the coal.

[0041] like Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the conductive mechanism 5 further includes a block conductive sheet 501, an arc-shaped conductive sheet 502, and a circular conductive sheet 503. The block conductive sheets 501 are arranged in a ring array at both ends of the first rotating roller 3, and the block conductive sheets 501 are electrically connected to the electromagnet 4. An arc-shaped conductive sheet 502 is fixed at one end inside the housing 1, and the outer side of the arc-shaped conductive sheet 502 is in contact with the block conductive sheet 501. A circular conductive sheet 503 is fixed at the other end inside the housing 1, and the circular conductive sheet 503 is electrically connected to the block conductive sheet 501.

[0042] During the rotation of the first roller 3, when the blocky conductive sheet 501 is located in the unconnected area between the ends of the arc-shaped conductive sheet 502, the electromagnet 4 located inside the impurity collection tank 6 on the first roller 3 is level with the horizontal plane. The electromagnet 4 is disconnected from the circuit, and the impurities will fall down automatically and be transferred to the interior of the impurity collection tank 6 through the receiving component.

[0043] like Figure 3 As shown, in a preferred embodiment, based on the above method, the distance between the two ends of the arc-shaped conductive sheet 502 is greater than the length of the block conductive sheet 501, ensuring that when the first rotating roller 3 rotates to a certain fixed position, a group of electromagnets 4 on the side are de-energized, so that the impurities adhering to its surface fall off, and the collection of impurities and cleaning of electromagnets 4 are initiated.

[0044] like Figure 1 As shown, in a preferred embodiment, based on the above method, a discharge port 601 is further provided on the side of the box 1 away from the feed port 101, and a transparent window is provided on the discharge port 601. When the impurities collected in the impurity collection tank 6 reach a certain amount, the discharge port 601 is opened to clean the inside of the impurity collection tank 6.

[0045] like Figure 1 As shown, in a preferred embodiment, based on the above method, the receiving component further includes a second rotating roller 602 and a hook-shaped collecting plate 603. The second rotating roller 602 is rotatably installed between the two ends of the housing 1 and located above the impurity collecting trough 6. The hook-shaped collecting plate 603 is uniformly provided on the outer side of the impurity collecting trough 6.

[0046] In the process of magnetic attraction impurity removal, when the electromagnet 4 on the first rotating roller 3 is located inside the impurity collecting groove 6, at this time the hook-shaped collecting plate 603 is located below the electromagnet 4, the hook-shaped collecting plate 603 can completely catch the impurities dropped by the electromagnet 4, then with the anticlockwise rotation of the second rotating roller 602, the impurities fall into the inside of the impurity collecting groove 6 for storage.

[0047] As Figure 2 shown, as a preferred embodiment, on the basis of the above mode, further, the end of the second rotating roller 602 is located outside the box body 1 and is provided with a second motor 8, and the second rotating roller 602 rotates at the same speed as the first rotating roller 3.

[0048] Embodiment 3

[0049] The schemes in the embodiments 1 and 2 are further introduced in combination with specific working modes, and details are described below:

[0050] In the process of coal impurity removal, the coal is first injected from the feeding port 101, falls into the top of the conveying belt 2, and then is conveyed towards the discharging port 102, and in the conveying process, the first motor 7 controls the first rotating roller 3 to rotate to drive the electromagnet 4 to rotate, the rotating direction of the electromagnet 4 is opposite to the conveying direction of the coal, in the rotating process of the first rotating roller 3, the position of the electromagnet 4 is continuously changed, and different electromagnets 4 are used to adsorb the impurities in the coal, when the electromagnet 4 on the first rotating roller 3 enters the inside of the impurity collecting groove 6, at this time the block-shaped conductive sheet 501 is located at the unconnected area between the end portions of the arc-shaped conductive sheet 502, the electromagnet 4 is disconnected with the circuit, the impurities will automatically fall down, and at the same time the hook-shaped collecting plate 603 is located below the electromagnet 4, the hook-shaped collecting plate 603 can completely catch the impurities dropped by the electromagnet 4, then the first rotating roller 3 continuously rotates clockwise, and the hook-shaped collecting plate 603 continuously rotates anticlockwise, the impurities fall into the impurity collecting groove 6 for storage, and after the electromagnet 4 leaves the inside of the impurity collecting groove 6, the circuit returns to the conducting state, and the metal impurities in the coal are continuously magnetically attracted, and the impurities on the surface of the electromagnet 4 can be automatically cleaned and collected.

[0051] The above is only further embodiments of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the disclosed range of the present application, which all belong to the protection scope of the present application.

Claims

1. A coal impurity removing device, comprising a box body (1), a feeding port (101) opened on the top of the box body (1), and a discharging port (102) opened on the bottom of the box body (1), characterized in that: The bottom of the box (1) is horizontally provided with a conveying belt (2) near one side of the feeding port (101), the top of the conveying belt (2) is rotatably provided with a first rotating roller (3) between the two ends of the box (1), the outer side of the first rotating roller (3) is uniformly provided with an electromagnet (4) in the circumferential direction, the end of the first rotating roller (3) is provided with a conductive mechanism (5), the inside of the box (1) away from the feeding port (101) is provided with an impurity collecting groove (6), the inside of the impurity collecting groove (6) is provided with a receiving assembly, and the outer end face of the box (1) is provided with a first motor (7) for controlling the rotation of the first rotating roller (3).

2. The coal impurity removal device according to claim 1, characterized in that: The electromagnet (4) on the outer side of the first rotating roller (3) is provided with four groups, and the shape of the electromagnet (4) is comb-shaped.

3. A coal impurity removal device according to claim 2, characterized in that: The conductive mechanism (5) includes block-shaped conductive sheets (501), arc-shaped conductive sheets (502) and circular conductive sheets (503), the block-shaped conductive sheets (501) are arranged in an annular array at the two ends of the first rotating roller (3) respectively, and the block-shaped conductive sheets (501) are electrically connected with the electromagnet (4) respectively, one end of the inside of the box (1) is fixed with the arc-shaped conductive sheet (502), and the outer side of the arc-shaped conductive sheet (502) is attached to the block-shaped conductive sheet (501), the other end of the inside of the box (1) is fixed with the circular conductive sheet (503), and the circular conductive sheet (503) is electrically connected with the block-shaped conductive sheet (501).

4. A coal impurity removal device according to claim 1, 2 or 3, characterised in that: The distance between the two ends of the arc-shaped conductive sheet (502) is greater than the length of the block-shaped conductive sheet (501).

5. A coal impurity removal device according to claim 4, characterised in that: The side of the box (1) away from the feeding port (101) is provided with a discharge port (601), and the discharge port (601) is provided with a transparent window.

6. A coal impurity removal device according to claim 5, characterized in that: The receiving assembly includes a second rotating roller (602) and a hook-shaped collecting plate (603), the second rotating roller (602) is rotatably installed between the two ends of the box (1) and above the impurity collecting groove (6), and the outer side of the impurity collecting groove (6) is uniformly provided with the hook-shaped collecting plate (603).

7. A coal impurity removal device according to claim 6, characterized in that: The end of the second rotating roller (602) and the outer side of the box (1) are provided with a second motor (8), and the second rotating roller (602) rotates at the same speed as the first rotating roller (3).

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