An iron removal device capable of preventing belt from being scratched

Abstract

The utility model discloses an iron removal device capable of preventing a belt from being scratched, comprising a bracket (1), a first iron removal part, a first monitoring part and a first toggle part; the first iron removal part is arranged below the bracket (1) and is composed of a first electromagnet (2) and a second electromagnet (3); the first monitoring part is composed of an infrared emitting component (5) and an infrared receiving component (6) arranged on both sides of a belt conveyor (4); the first toggle part is arranged between the first electromagnet (2) and the second electromagnet (3) and is composed of a toggle rod (7) and a driving component; the toggle rod (7) is driven by the driving component and is in active contact with a long iron object (8) during movement, and toggle the long iron object (8) away from the belt. The utility model can solve the problem that a slender iron object is easy to pierce or scratch the belt, and has the characteristics of good reliability and high safety.

Description

Technical Field

[0001] The utility model relates to the technical field of impurity removal equipment, in particular to an iron removal device capable of preventing a belt from being scratched. Background Art

[0002] Iron removal devices are widely used in metallurgy, mining, coal preparation plants, power plants, cement, building materials and other industries. In large steel companies, iron removers are often used to remove and collect iron-containing debris in materials transported by belt conveyors. By setting an iron remover above the belt, the iron impurities in the materials conveyed by the belt can be quickly cleaned, which not only recovers the ferromagnetic materials in the materials, but also protects the belt. However, in actual use, slender iron objects are often encountered, one end of which is adsorbed by the iron remover, but the other end remains on the belt. Due to the relative movement between the belt and the slender iron object adsorbed at one end, it is easy to cause the slender iron object to pierce or scratch the belt.

[0003] The Chinese patent with application number CN202121133651.X and name "A kind of iron remover" discloses an iron remover including an iron remover bracket, an iron remover fixing frame and an iron remover body. The iron remover bracket is arranged across the top of the coal conveyor belt, the height of the iron remover bracket is adjustable, the iron remover fixing frame is detachably fixed to the upper part of the iron remover bracket, the iron remover body is fixed to the iron remover fixing frame, and the iron remover body is located above the coal conveyor belt. By adjusting the height of the iron remover bracket, the angle adjustment between the iron remover body and the working plane of the coal conveyor belt is achieved, but it does not involve the problems mentioned in this application. Utility Model Content

[0004] The utility model is used to overcome the defects of the prior art and provide an iron removal device which can prevent the belt from being scratched, so as to solve the problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A magnetic removal device capable of preventing a belt from being scratched comprises a bracket, a first magnetic removal section, a first monitoring section and a first toggle section; the bracket is arranged above a belt conveyor; the first magnetic removal section is arranged below the bracket and is composed of a first electromagnet and a second electromagnet; the first monitoring section is composed of an infrared emitting assembly and an infrared receiving assembly arranged on both sides of the belt conveyor; the first toggle section is arranged below the bracket or on a frame on both sides of the belt conveyor, and is composed of a toggle rod and a driving assembly; the toggle rod is driven by the driving assembly, and is in active contact with a long iron object during movement, and toggles the long iron object off the belt.

[0007] The above-mentioned iron removal device that can prevent the belt from being scratched, the driving assembly consists of a driving motor and a turntable, the driving motor is installed on the bracket, the turntable is connected to the output shaft of the driving motor, and one end of the toggle rod is connected to the turntable.

[0008] The above-mentioned iron removal device can prevent the belt from being scratched, wherein the first monitoring part is arranged between the first electromagnet and the second electromagnet, the infrared emitting component is composed of 1-3 infrared emitting tubes, and the infrared receiving component matches the infrared emitting component and is composed of 1-3 infrared receiving tubes.

[0009] The above-mentioned iron removal device that can prevent the belt from being scratched also includes a CPU and a control circuit. The signal output of the first monitoring unit is connected to the input end of the CPU. The two output ends of the CPU are respectively connected to the first electromagnet and the second electromagnet through a transistor amplifier circuit and a relay. Another output end of the CPU is connected to the drive motor through a transistor amplifier circuit and a relay.

[0010] The above-mentioned iron removal device capable of preventing the belt from being scratched, the distance between the first electromagnet and the second electromagnet is adjustable.

[0011] The above-mentioned iron removal device that can prevent the belt from being scratched has a second iron removal part, a second monitoring part and a second toggle part added below the bracket; the second iron removal part, the second monitoring part and the second toggle part have the same structure as the first iron removal part, the first monitoring part and the first toggle part respectively. Beneficial Effects

[0012] Compared with the prior art, the utility model has the following advantages: First, two electromagnets and a first monitoring unit are installed on a bracket arranged above the belt conveyor. When the long iron object is adsorbed by one of the electromagnets, the monitoring signal of the first monitoring unit is intermittently blocked by the long iron object. At this time, the other electromagnet is controlled to work to adsorb the other end of the long iron object, so as to avoid the long iron object from forming an angle with the belt after being adsorbed by the magnet, thereby piercing and scratching the belt. Second, when the other end of the long iron object is adsorbed, the first toggle unit is controlled to work, and the toggle rod is in active contact with the long iron object during the movement, and the long iron object is toggled off the belt, which helps the electromagnet to adsorb the long iron object. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is another structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the control circuit of the utility model.

[0017] The symbols in the figure represent:

[0018] 1. Bracket, 2. First electromagnet, 3. Second electromagnet, 4. Belt conveyor, 5. Infrared transmitting assembly, 6. Infrared receiving assembly, 7. Toggle lever, 8. Long iron, 9. Driving motor, 10. Turntable, D1, infrared transmitting tube, D2, infrared receiving tube, R1-R4, first resistor - fourth resistor, IC, comparator, J1-J3, first relay - third relay, T1-T3, first transistor - third transistor. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1-3 As shown, the utility model includes a first iron removal part, a first monitoring part, and a first toggle part; the first iron removal part is composed of a bracket 1 and a first electromagnet 2 and a second electromagnet 3 arranged thereunder; the first monitoring part is composed of an infrared emitting component 5 and an infrared receiving component 6 arranged on both sides of a belt conveyor 4; the first toggle part is arranged between the first electromagnet 2 and the second electromagnet 3, and is composed of a toggle rod 7 and a driving component. The toggle rod 7 is driven by the driving component, and is in active contact with the long iron article 8 during movement, and toggles the long iron article 8 off the belt.

[0021] The first electromagnet 2 and the second electromagnet 3 are arranged along the running direction of the belt, and the distance between them is adjustable to facilitate the adsorption of long iron objects 8 of different lengths.

[0022] In the working state, the first electromagnet 2 can be set at a downstream position in the running direction of the belt relative to the second electromagnet 3, and the first electromagnet 2 is controlled to be powered on first. During the process of adsorbing one end of the long iron 8, when the long iron 8 is lifted, the infrared light emitted by the infrared emitting component 5 is intermittently blocked, and the infrared receiving component 6 receives the signal change of the infrared light, controls the second electromagnet 3 to work, and controls the first toggle part to work, and adsorbs the other end of the long iron 8. This method, by installing two electromagnets and cooperating with the first monitoring part to adsorb the other end of the long iron, prevents the long iron from forming an angle with the belt after being adsorbed by the magnet, and piercing and scratching the belt.

[0023] The driving assembly is composed of a driving motor 9 and a rotating disk 10. The driving motor 9 is mounted on the bracket 1. The rotating disk 10 is connected to the output shaft of the driving motor 9. One end of the toggle rod 7 is connected to the rotating disk 10. The driving motor 9 can be a DC motor to facilitate the control of the rotation speed; it can also be an AC motor. In this case, a speed reduction mechanism is preferably provided between the output shaft of the driving motor 9 and the rotating disk. The driving assembly can also be composed of the driving motor 9 alone, and the output shaft of the driving motor 9 is directly connected to the toggle rod.

[0024] The first monitoring unit is arranged between the first electromagnet 2 and the second electromagnet 3, the infrared emitting assembly 5 is composed of 1-3 infrared emitting tubes, and the infrared receiving assembly 6 matches the infrared emitting assembly 5 and is composed of 1-3 infrared receiving tubes. In theory, a group of infrared emitting tubes and infrared receiving tubes can be used to monitor the adsorption process of the long iron 8, but due to installation errors, in order to increase reliability, 1-3 groups can be set, and of course the number of infrared emitting tubes and infrared receiving tubes can be increased. At this time, the adjacent infrared emitting tubes and receiving tubes should be blocked to prevent signal interference between each other.

[0025] In order to realize automatic control, a CPU and a control circuit are also provided. The signal output of the first monitoring unit is connected to the input end of the CPU. The two output ends of the CPU are connected to the first electromagnet 2 and the second electromagnet 3 through a transistor amplifier circuit and a relay respectively. Another output end of the CPU is connected to the drive motor 9 through a transistor amplifier circuit and a relay. Figure 3 As shown in the figure, the output signal of the infrared receiving tube D2 is connected to the signal input terminal P1.0 of the CPU through the comparator. Only one group of infrared transmitting tubes and infrared receiving tubes are drawn in the figure. If multiple groups of infrared transmitting tubes and infrared receiving tubes are used, the outputs of other infrared receiving tubes can also be connected to other input terminals of the CPU in the same way, such as P1.1, P1.2, etc. The P2.0 output terminal of the CPU is connected to the base of the transistor T1, and a protective resistor can be set between the two. The collector of the transistor is connected to the first relay J1, and the two normally open contacts J1-1 of the first relay J1 are connected to control the first electromagnet 2. The P2.1 and P2.2 of the CPU are connected in the same way to control the second electromagnet 3 and the drive motor 9. The CPU can use the C8051F340 series chip, which has up to 40 I / O pins, which can meet the needs of communication and control. The comparator can use the op amp LM301, LM741, etc.

[0026] In order to increase the reliability of adsorption of long iron objects, a second iron removal part, a second monitoring part and a second toggle part can be added under the bracket 1; the second iron removal part, the second monitoring part and the second toggle part have the same structure as the first iron removal part, the first monitoring part and the first toggle part respectively.

Claims

1. An iron removal device capable of preventing a belt from being scratched, characterized in that: The invention comprises a support (1), a first iron removal part, a first monitoring part and a first toggle part; the support (1) is arranged above a belt conveyor (4); the first iron removal part is arranged below the support (1) and is composed of a first electromagnet (2) and a second electromagnet (3); the first monitoring part is composed of an infrared emitting component (5) and an infrared receiving component (6) arranged on both sides of the belt conveyor (4); the first toggle part is arranged below the support (1) or on a frame on both sides of the belt conveyor (4), and is composed of a toggle rod (7) and a driving component; the toggle rod (7) is driven by the driving component; during the movement of the toggle rod (7), it comes into active contact with a long iron object (8) having one end adsorbed by the first iron removal part, and toggle the long iron object (8) to detach from the belt.

2. The iron removal device capable of preventing the belt from being scratched according to claim 1, characterized in that: The driving assembly is composed of a driving motor (9) and a rotating disk (10). The driving motor (9) is mounted on a bracket (1). The rotating disk (10) is connected to an output shaft of the driving motor (9). One end of the toggle rod (7) is connected to the rotating disk (10).

3. The iron removal device capable of preventing the belt from being scratched according to claim 1, characterized in that: The first monitoring unit is arranged between the first electromagnet (2) and the second electromagnet (3); the infrared emitting component (5) is composed of 1 to 3 infrared emitting tubes; and the infrared receiving component (6) matches the infrared emitting component (5) and is composed of 1 to 3 infrared receiving tubes.

4. The iron removal device capable of preventing the belt from being scratched according to claim 2, characterized in that: It also includes a CPU and a control circuit, wherein the signal output of the first monitoring unit is connected to the input end of the CPU, the two output ends of the CPU are connected to the first electromagnet (2) and the second electromagnet (3) respectively through a transistor amplifier circuit and a relay, and another output end of the CPU is connected to a drive motor (9) through a transistor amplifier circuit and a relay.

5. The iron removal device capable of preventing the belt from being scratched according to claim 1, characterized in that: The distance between the first electromagnet (2) and the second electromagnet (3) is adjustable.

6. The iron removal device capable of preventing the belt from being scratched according to claim 1, characterized in that: A second iron removal part, a second monitoring part and a second toggle part are additionally provided below the bracket (1); the second iron removal part, the second monitoring part and the second toggle part have the same structures as the first iron removal part, the first monitoring part and the first toggle part respectively.

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