Belt type iron removal device with magnetic force adjusting function

Abstract

The utility model provides a belt type iron removal device with a magnetic force adjusting function, which relates to the technical field of iron removers and comprises a control unit and an iron removal component. A belt-type iron remover in the iron removal assembly is fixedly mounted at the tail part of the belt-type conveyor and is used for removing magnetic metal substances in combustion materials conveyed by the belt-type conveyor; the iron storage box is arranged on a ground platform at the tail part of the belt conveyor and is used for storing the magnetic metal substances removed by the belt iron remover; the monitoring unit is arranged at the iron storage box and used for monitoring the variable quantity of the magnetic metal substances in the iron storage box; the control unit is electrically connected with the belt type iron remover and the monitoring unit and used for receiving the monitored magnetic metal substance variable quantity and magnetic force value data and adjusting the magnetic force value of the belt type iron remover in the iron removal assembly according to the collected data. According to the scheme, it can be guaranteed that magnetic metal substances can be efficiently removed, and meanwhile energy waste caused by the too large magnetic force value can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of iron removers, in particular to a belt-type iron remover with a magnetic force adjustment function. Background Art

[0002] At present, in the treatment of domestic waste, in order to reduce the pollution of waste to the environment and solve the problem of energy shortage today, we have gradually begun to develop urban waste energy and use urban waste to generate electricity, turning harm into benefit and turning waste into treasure. This method of waste treatment has gradually become an important measure to solve the increasing urban environmental pollution and the increasing shortage of conventional energy.

[0003] The main combustion material of the biopower plant is urban daily household garbage, which contains a large amount of magnetic metal substances, such as iron, copper, aluminum, cobalt, nickel, manganese and other magnetic metal substances. The garbage needs to be initially crushed before combustion, and these magnetic metal substances after crushing will also be divided accordingly. Moreover, these magnetic metal substances are unevenly distributed in the garbage. During combustion, a belt conveyor is used to transport these crushed combustion materials to the boiler furnace. Because the metals mixed in the combustion materials will damage the boiler combustion equipment, a belt iron remover is set during the conveying process of the belt conveyor to adsorb and remove the magnetic metal substances in the garbage.

[0004] In the process of conveying combustion materials by belt conveyor, the magnetic metal substances in the combustion materials are unevenly distributed. Sometimes the content of magnetic metal substances in the combustion materials is small, and sometimes the content of magnetic metal substances in the combustion materials suddenly increases. However, the magnetic force value of the traditional belt iron remover is constant. When the content of magnetic metal substances is small, the belt iron remover is basically in a "no-load" state, resulting in unnecessary power consumption of the belt iron remover. When the content of magnetic metal substances is large, the belt iron remover still maintains a constant magnetic force value, resulting in the magnetic metal substances on the belt conveyor cannot be efficiently removed. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a belt-type iron removal device with a magnetic force adjustment function to solve the problems raised in the above technical background.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides a belt-type iron removal device with a magnetic force adjustment function, comprising: a control unit and at least one group of iron removal components; each group of iron removal components includes a belt-type iron remover, a belt conveyor, an iron storage box and a monitoring unit, the belt-type iron remover is fixedly installed above the tail of the belt conveyor, and is installed on the same frame as the belt conveyor, so as to remove magnetic metal substances in the combustion materials conveyed by the belt conveyor; the iron storage box is arranged on a ground platform close to the tail of the belt conveyor, and corresponds to the longitudinal direction of the belt-type iron remover, so as to store the magnetic metal substances removed by the belt-type iron remover; the monitoring unit is arranged at the iron storage box, so as to monitor the change in the amount of magnetic metal substances in the iron storage box; the control unit is electrically connected to the belt-type iron remover and the monitoring unit in each group of iron removal components, respectively, so as to receive the data on the change in the amount of magnetic metal substances and the magnetic value data of the belt-type iron remover monitored by each monitoring unit, and adjust the magnetic value of the belt-type iron remover in the iron removal component according to the collected data.

[0008] Preferably, the control unit is used to transmit data with the belt iron remover by wireless or wired transmission to adjust the magnetic force value of the belt iron remover.

[0009] Preferably, the pulse duration of the pulse signal when the control unit and the belt remover perform data transmission is 600-800 ms.

[0010] Preferably, the monitoring unit includes a weighing component, the area of ​​the upper surface of the weighing component is larger than the area of ​​the lower surface of the iron storage box, the weighing component is arranged directly below the bottom of the iron storage box, and the lower surface of the iron storage box is completely within the upper surface of the weighing component, and the weighing component is used to monitor the weight changes of the magnetic metal material in the iron storage box.

[0011] Preferably, the monitoring unit includes a grating sensing component, and the grating sensing component includes a grating transmitter and a grating receiver. The grating transmitter and grating receiver are respectively arranged on the inner walls of the two sides facing the iron storage box, and are 8-12 cm away from the box opening of the iron storage box, and are used to monitor the amount of magnetic metal materials entering the first iron removal storage box.

[0012] Preferably, in the belt-type iron removal device, a lower hopper is provided between the tail of the preceding belt conveyor and the head of the succeeding belt conveyor, so that the preceding belt conveyor can transfer the combustion materials to the head of the succeeding belt conveyor through the lower hopper provided at its tail.

[0013] Preferably, the control unit is also used to control the magnetic value of the corresponding belt remover to no longer increase when the received magnetic value data of the belt remover reaches a preset upper limit threshold; and to control the magnetic value of the corresponding belt remover to no longer decrease when the received magnetic value data of the belt remover reaches a preset lower limit threshold.

[0014] Preferably, the iron storage box is a hollow rectangular structure with an open upper end and no box cover.

[0015] It can be seen from the above technical scheme that the belt iron removal device with magnetic force adjustment function provided by this scheme includes a control unit and several groups of iron removal components, wherein the iron removal components include a belt iron remover, a belt conveyor, an iron storage box and a monitoring unit, wherein the monitoring unit is arranged at the bottom of the iron storage box, and can monitor the change in the amount of magnetic metal material in the iron storage box and transmit it to the control unit, and the control unit can also simultaneously receive the magnetic value data uploaded by the belt iron remover, so that the control unit can adjust the magnetic value of the belt iron remover according to the content of magnetic metal material in the transportation process of combustion materials, so as to ensure that the magnetic metal material can be removed efficiently, and at the same time can save the energy waste caused by excessive magnetic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a belt-type iron removal device with a magnetic force adjustment function provided in an embodiment of the utility model.

[0017] Figure 2 A schematic diagram of the setting of a weighing component provided in an embodiment of the utility model.

[0018] Figure 3 A top view of an iron storage box provided in an embodiment of the utility model.

[0019] Figure 4 A functional module diagram of a control unit provided in an embodiment of the utility model.

[0020] In the figure: a belt iron remover 10, a belt conveyor 20, an iron storage box 30, a monitoring unit 40, a weighing component 41, a grating sensing component 42, a grating transmitter 421, a grating receiver 422, and a lower hopper 50. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0023] Please see Figures 1 to 4 The utility model provides a belt-type iron removal device with a magnetic force adjustment function, comprising: a control unit and at least one group of iron removal components; each group of iron removal components comprises a belt-type iron remover 10, a belt conveyor 20, an iron storage box 30 and a monitoring unit 40, the belt-type iron remover 10 is fixedly installed above the tail of the belt conveyor 20, and is installed on the same frame as the belt conveyor 20, so as to remove magnetic metal substances in the combustion materials conveyed by the belt conveyor 20; the iron storage box 30 is arranged on a ground platform near the tail of the belt conveyor 20, And it corresponds to the longitudinal direction of the belt remover 10, and is used to store the magnetic metal materials removed by the belt remover 10; the monitoring unit 40 is arranged at the iron storage box 30, and is used to monitor the change in the amount of magnetic metal materials in the iron storage box 30; the control unit is electrically connected to the belt remover 10 and the monitoring unit 40 in each group of iron removal components, respectively, to receive the magnetic metal material change data and the magnetic value data of the belt remover 10 monitored by each monitoring unit 40, and adjust the magnetic value of the belt remover 10 in the iron removal component according to the collected data.

[0024] In this embodiment, the monitoring unit 40 is arranged at the bottom of the iron storage box 30, and can monitor the change in the amount of magnetic metal material in the iron storage box 30 and transmit it to the control unit. The control unit can also simultaneously receive the magnetic value data uploaded by the belt iron remover 10. In this way, the control unit can adjust the magnetic value of the belt iron remover 10 according to the content of magnetic metal material in the transportation process of the combustion material, so as to ensure that the magnetic metal material can be removed efficiently, and at the same time save the energy waste caused by excessive magnetic value.

[0025] The control unit is used to transmit data with the belt-type iron remover 10 by wireless or wired transmission to adjust the magnetic force value of the belt-type iron remover 10. For example, the control unit controls the magnetic force value of the belt-type iron remover 10 by receiving and sending pulse signals, and the transmission mode of the received and sent pulse signals can be a wired transmission mode or a wireless transmission mode.

[0026] Furthermore, the pulse duration of the pulse signal when the control unit and the belt iron remover 10 transmit data can be 600~800ms, so as to ensure that the control unit can timely and effectively control the magnetic force value of the belt iron remover 10; at the same time, if the pulse duration is set too small, the control unit issues control instructions to the belt iron remover 10 to adjust the magnetic force value too frequently, then the belt iron remover 10 will have to make frequent adjustments to the magnetic force value according to the control instructions issued by the control unit, and frequent adjustments to the magnetic force value may cause the belt iron remover 10 to malfunction and become unusable.

[0027] In addition, the control unit is also used to control the magnetic force value of the corresponding belt-type iron remover 10 to no longer increase when the magnetic force value data of the received belt-type iron remover 10 reaches a preset upper limit threshold; and, when the magnetic force value data of the received belt-type iron remover 10 reaches a preset lower limit threshold, the magnetic force value of the corresponding belt-type iron remover 10 is no longer reduced. In the existing scheme, the main functional component of the belt-type iron remover 10 is an electromagnet, and the magnetic force value of the electromagnet is changed by changing the magnitude of the current value flowing through the electromagnet, but the current value flowing through the electromagnet cannot be increased infinitely, otherwise it will cause the insulation damage of the cable carrying the current, so it is necessary to preset an upper limit threshold for the magnetic force value of the belt-type iron remover 10 to avoid electromagnet failure; at the same time, the current value of the electromagnet cannot be infinitely reduced, and infinitely reducing the current value of the electromagnet is equivalent to the electromagnet having no magnetic force, so when the belt conveyor 20 transports the combustion material, if there is suddenly a magnetic metal substance, the belt-type iron remover 10 will not have time to quickly increase the magnetic force value, and thus it will not be able to effectively remove the magnetic metal substance in the combustion material.

[0028] The monitoring unit 40 may include a weighing component 41, the upper surface area of ​​which is larger than the lower surface area of ​​the iron storage box 30. The weighing component 41 is arranged directly below the bottom of the iron storage box 30, and the lower surface of the iron storage box 30 is completely within the upper surface of the weighing component 41. The weighing component 41 is used to monitor the weight change of the magnetic metal material in the iron storage box 30.

[0029] In this embodiment, the weighing method is to weigh and calculate the change in weight of the iron storage box 30 per unit time, that is, if the weight of the iron storage box 30 changes within a certain period of time, it means that magnetic metal substances have entered the iron storage box 30 during this period of time; if the weight of the iron storage box 30 has not changed during this period of time, it means that no magnetic metal substances have entered the iron storage box 30 during this period of time; in this way, it can be determined whether the combustion materials transported by the belt conveyor 20 contain magnetic metal substances, and the amount of magnetic metal substances contained in the combustion materials transported by the belt conveyor 20 can be determined based on the size of the weight change of the iron storage box 30 per unit time.

[0030] The monitoring unit 40 may also include a grating sensing component 42, which includes a grating transmitter 421 and a grating receiver 422. The grating transmitter 421 and the grating receiver 422 are respectively arranged on the inner walls of the two sides opposite to the iron storage box 30, and are 8-12 cm away from the box opening of the iron storage box 30, for monitoring the amount of magnetic metal materials entering the first iron removal storage box.

[0031] In this embodiment, the grating transmitter 421 emits an infrared grating, and the grating receiver 422 receives the infrared grating accordingly. An infrared light curtain is formed between the grating transmitter 421 and the grating receiver 422. When a magnetic metal material passes through the light curtain, the magnetic metal material will block the corresponding infrared light, so that the grating sensing component 42 will detect the magnetic metal material. The grating sensing component 42 converts the optical signal into an electrical signal and transmits it to the control unit; based on the sensing of the magnetic metal material by the grating sensing component 42, it can be determined whether the combustion material transported by the belt conveyor 20 contains magnetic metal material, and the amount of magnetic metal material contained in the combustion material transported by the belt conveyor 20 can be determined based on the number of times the grating sensing component 42 senses the magnetic metal material per unit time.

[0032] Furthermore, in the belt-type iron removal device, a lower hopper 50 is provided between the tail of the previous belt conveyor 20 and the head of the next belt conveyor 20, so that the previous belt conveyor 20 transfers the combustion material to the head of the next belt conveyor 20 through the lower hopper 50 provided at its tail, thereby realizing multi-stage iron removal to improve the iron removal rate of the combustion material.

[0033] For the iron storage box 30, it can be a hollow rectangular structure with an open upper end and no box cover, and its dimensions can be: length × width × height is 1.5 meters × 1 meter × 1 meter; it is easy to understand that the size of this storage box can also be set to other sizes to meet the size requirements of the belt iron remover 10 and the belt conveyor 20.

[0034] In a specific implementation, when the belt iron remover 10 is initially started, the control unit operates each belt iron remover 10 at the minimum magnetic force value, and the monitoring unit 40 monitors the change in the amount of magnetic metal material in the iron storage box 30 in real time and transmits the change to the control unit. If the signal monitored by the monitoring unit 40 does not change within a period of time, it means that the combustion material transported by the belt conveyor 20 does not contain magnetic metal material at this time, then the control unit will not issue an instruction to increase the magnetic force value to the belt iron remover 10, and the belt iron remover 10 continues to maintain the minimum magnetic force value operation; when the signal monitored by the monitoring unit 40 changes within a period of time, it means that the combustion material transported by the belt conveyor 20 contains magnetic metal material at this time, then the control unit will quickly issue an instruction to increase the magnetic force value to the belt iron remover 10, and the belt iron remover 10 will operate according to the instruction issued by the control unit. The magnetic force value is increased according to the instruction to increase the magnetic force value, meeting the need for the magnetic metal materials on the belt conveyor 20 to be removed at this time. At this time, the size of the increase in the magnetic force value is determined by the size of the change in the magnetic metal materials in the iron storage box 30 monitored by the monitoring unit 40; it is easy to understand that the instruction to increase the magnetic force value issued by the control unit to the belt remover 10 cannot be greater than its preset upper limit threshold; the belt remover 10 maintains the state after the magnetic force value is increased. After running for a period of time, if the signal monitored by the monitoring unit 40 has not changed within a period of time, it means that the combustion material transported by the belt conveyor 20 at this time does not contain magnetic metal materials, then the control unit issues a command to reduce the magnetic force value to the belt remover 10, and accordingly, the belt remover 10 decreases according to the instruction to reduce the magnetic force value issued by the control unit until it is reduced to the minimum magnetic force value for operation; and this goes back and forth.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A belt type iron removal device with magnetic force adjustment function, characterized in that: include: A control unit and at least one group of iron removal components; each group of iron removal components includes a belt iron remover, a belt conveyor, an iron storage box and a monitoring unit, wherein the belt iron remover is fixedly installed above the tail of the belt conveyor and is installed on the same frame as the belt conveyor to remove magnetic metal substances in the combustion materials transported by the belt conveyor; the iron storage box is arranged on a ground platform close to the tail of the belt conveyor and corresponds to the longitudinal direction of the belt iron remover to store the magnetic metal substances removed by the belt iron remover; the monitoring unit is arranged at the iron storage box to monitor the change in the amount of magnetic metal substances in the iron storage box; The control unit is electrically connected to the belt remover and the monitoring unit in each group of iron removal components, respectively, for receiving the data on the change in the amount of magnetic metal material and the magnetic value data of the belt remover monitored by each monitoring unit, and adjusting the magnetic value of the belt remover in the iron removal component according to the collected data.

2. The belt type iron removal device with magnetic force adjustment function according to claim 1 is characterized in that: The control unit is used to transmit data with the belt-type iron remover by wireless or wired transmission to adjust the magnetic force value of the belt-type iron remover.

3. The belt type iron removal device with magnetic force adjustment function according to claim 2 is characterized in that: The pulse duration of the pulse signal when the control unit and the belt remover perform data transmission is 600-800 ms.

4. The belt type iron removal device with magnetic force adjustment function according to claim 1, characterized in that: The monitoring unit includes a weighing component, the area of ​​the upper surface of the weighing component is larger than the area of ​​the lower surface of the iron storage box, the weighing component is arranged directly below the bottom of the iron storage box, and the lower surface of the iron storage box is completely within the upper surface of the weighing component, and the weighing component is used to monitor the weight changes of magnetic metal materials in the iron storage box.

5. The belt type iron removal device with magnetic force adjustment function according to claim 1, characterized in that: The monitoring unit includes a grating sensing component, which includes a grating transmitter and a grating receiver. The grating transmitter and the grating receiver are respectively arranged on the inner walls of the two sides facing the iron storage box, and are 8-12 cm away from the box opening of the iron storage box, and are used to monitor the amount of magnetic metal materials entering the first iron removal storage box.

6. The belt type iron removal device with magnetic force adjustment function according to claim 1, characterized in that: In the belt type iron removal device, a lower hopper is arranged between the tail of the previous belt conveyor and the head of the next belt conveyor, so that the previous belt conveyor can transfer the combustion materials to the head of the next belt conveyor through the lower hopper arranged at its tail.

7. The belt type iron removal device with magnetic force adjustment function according to claim 1, characterized in that: The control unit is also used to control the magnetic value of the corresponding belt remover to no longer increase when the received magnetic value data of the belt remover reaches a preset upper limit threshold; and to control the magnetic value of the corresponding belt remover to no longer decrease when the received magnetic value data of the belt remover reaches a preset lower limit threshold.

8. The belt type iron removal device with magnetic force adjustment function according to any one of claims 1 to 7, characterized in that: The iron storage box is a hollow rectangular parallelepiped structure with an open upper end and no box cover.

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