Device for monitoring volume of material in stock bin

Abstract

The utility model provides a device for monitoring the volume of materials in a stock bin. The device for monitoring the volume of the materials in the stock bin comprises the stock bin used for containing the materials, a first conveyor used for conveying the materials into the stock bin, a feeding machine used for outputting the materials in the stock bin and a second conveyor connected with the feeding machine. The first control circuit is used for sensing the weight of materials and calculating the volume of the materials according to the sensed weight, the computer is used for receiving the volume calculated by the first control circuit and converting the volume into a corresponding instruction, and the second control circuit is used for receiving and executing the instruction of the computer so as to control the first conveyor, the feeder and the second conveyor to act. The volume of materials is monitored more accurately, and the utilization rate of the stock bin is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ore processing, in particular to a device for monitoring the volume of materials in a bunker. Background Art

[0002] In the process of mineral processing by mining enterprises, especially in the ore crushing and screening process, buffer bunkers including semi-finished product bunkers, crushing and screening workshops, and finished product bunkers are set up in the factory area. In the subdivided sand and gravel aggregate processing industry, according to the particle size of materials, there are also multiple finished product bunkers.

[0003] Ores (materials) are input into the bunker through an automated conveyor for stacking, and then are input through an automated discharging conveyor. Due to the limited storage space of the bunker, in order to avoid explosion of the bunker, a supervision system needs to be added to ensure that the materials are stacked to a suitable volume after being input, so as to ensure the utilization rate of the bunker.

[0004] The existing supervision system is to set a non-contact laser scanner on the side wall of the bunker to scan the contour of the materials and the height of the material pile, so as to calculate the volume of the materials in the bunker. Due to the large amount of dust and low visibility in the bunker, there are phenomena of inaccurate measurement or inability to measure, resulting in insufficient monitoring and reduced utilization rate of the bunker. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a device for monitoring the volume of materials in a bunker to improve the utilization rate of the bunker.

[0006] The technical solution of the utility model is: a device for monitoring the volume of materials in a bunker, including a bunker for placing materials, a first conveyor for conveying materials into the bunker, a feeder for outputting the materials in the bunker, a second conveyor connected to the feeder, a first control circuit for sensing the weight of the materials and calculating the volume of the materials according to the sensed weight, a computer for receiving the volume calculated by the first control circuit to convert it into a corresponding instruction, and a second control circuit for receiving and executing the instruction of the computer to control the actions of the first conveyor, the feeder and the second conveyor.

[0007] In the above solution, the first conveyor and the second conveyor are controlled by weighing the materials. The weight of the materials is sensed and converted into volume, and then it is judged whether it reaches a suitable state. The method of sensing the weight of the materials is not interfered by dust and is not affected by visibility, and can monitor the volume of the materials in a more accurate way to ensure the utilization rate of the bunker; two control circuits are adopted, one is an induction calculation circuit and the other is a control instruction output circuit, which can calculate in real time, accurately monitor, and reduce the monitoring error caused by empirical values.

[0008] Preferably, the first control circuit includes an electronic scale and a first control cabinet. The electronic scale is placed on the floor of the silo, in contact with the material, and the electronic scale, the first control cabinet and the computer are electrically connected.

[0009] Preferably, a plurality of electronic scales are arranged on the floor of the silo.

[0010] Preferably, the second conveyor includes a second control cabinet, which is electrically connected to the computer, the first conveyor, the second feeder and the second conveyor respectively.

[0011] Preferably, one end of the first conveyor is arranged inside the silo and near the top of the silo, and the other end of the first conveyor extends outside the silo; one end of the second conveyor is arranged at the lower end of the silo, and the other end of the second conveyor extends outside the silo; the feeder is connected between the material and the second conveyor.

[0012] Preferably, a valve is provided on the feeder, and the valve is electrically connected to the second control circuit.

[0013] Compared with the related art, the beneficial effects of the present utility model are as follows:

[0014] First, the first conveyor and the second conveyor are controlled by weighing the material. By sensing the weight of the material and converting it into volume, and then judging whether it reaches the appropriate state, the method of sensing the weight of the material is not affected by dust and visibility, and can monitor the volume of the material in a more accurate way, ensuring the utilization rate of the silo.

[0015] Second, two control circuits are adopted, one is an induction calculation circuit and the other is a control instruction output circuit, which can calculate in real time, accurately monitor, and reduce the monitoring error caused by empirical values.

[0016] Third, an electronic scale is used for weighing, and combined with the first control cabinet, the second control cabinet and the computer, intelligent scheduling of the material can be realized.

[0017] Fourth, the electronic scale is set on the floor of the silo, which can monitor in real time, is not affected by the dust concentration in the silo, and can be used in places such as the semi-finished product silo of the mine, the buffer silo of the crushing and screening workshop, the finished product silo, the sand and gravel aggregate wharf or the storage yard. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the device for monitoring the volume of the material in the silo provided by the present utility model.

[0019] In the attached drawings: 1. Silo; 101. Floor; 102. Discharge channel; 2. First conveyor; 3. Material; 4. Feeder; 5. Second conveyor; 6. Electronic scale; 7. First control cabinet; 8. Computer; 9. Second control cabinet; 10. First control circuit; 11. Second control circuit. Detailed implementation manners

[0020] The present utility model will be described in detail below with reference to the attached drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other. For the convenience of narration, words such as "upper", "lower", "left", and "right" hereinafter only indicate the same directions as the upper, lower, left, and right directions of the attached drawings themselves, and do not limit the structure.

[0021] As Figure 1 shown, a device for monitoring the volume of materials in a silo provided in this embodiment includes a silo 1, a first conveyor 2, materials 3, a feeder 4, a second conveyor 5, a computer 8, a first control circuit 10, and a second control circuit 11.

[0022] The silo 1 is an enclosed workshop, which has a floor 101. A discharge channel 102 is provided at the bottom of the floor 101.

[0023] One end of the first conveyor 2 is arranged inside the silo 1 and near the top of the silo 1, and the other end of the first conveyor 2 extends outside the silo 1 and can be connected to the mining outlet. One end of the second conveyor 5 is arranged at the lower end of the silo 1, and the other end of the second conveyor 5 extends outside the silo 1 to place the output materials 3 on a transfer vehicle or other positions. The first conveyor 2 and the second conveyor 5 can adopt belt conveyors. The feeder 4 is connected between the materials 3 and the second conveyor 5. A valve is provided on the feeder 4.

[0024] The first control circuit 10 is used to sense the weight of the materials 3, calculate the volume of the materials 3, and then transmit the calculation result to the computer 8. The computer 8 is used to receive the calculation result of the first control circuit 10 and convert it into corresponding instructions. The second control circuit 11 is used to receive and execute the instructions of the computer 8 to control the actions of the first conveyor 2, the valve of the feeder 4, and the second conveyor 5.

[0025] The first control circuit 10 includes an electronic scale 6 and a first control cabinet 7. The electronic scale 6 is placed on the floor 101 of the silo 1. The electronic scale 6 is in contact with the materials 3. A plurality of electronic scales 6 are arranged on the floor 101 of the silo 1, and the value is the average value of the plurality of electronic scales 6. The electronic scale 6, the first control cabinet 7, and the computer 8 are electrically connected.

[0026] The second conveyor 5 includes a second control cabinet 9, and the second control cabinet 9 is electrically connected to the computer 8, the first conveyor 2, the second feeder 4, and the second conveyor 5 respectively.

[0027] The electronic scale 6 needs to be equipped with a PLC structure, which can be circular or square. The area S of the floor 101 and the density ρ of the material 3 need to be measured in advance. The weight of the material weighed by the electronic scale 6 is the weight M1 of the material 3 above the area S. The first control cabinet 7 receives the weight M1, calculates the stacking height H of the material 3 according to the cylinder volume formula, calculates the volume of the material 3 through the height H of the material 3, and then transmits it to the computer 8. After receiving the volume data of the material 3, the computer 8 uses the existing intelligent control system in the mine installed in the computer 8 to decide whether to feed in or out the material, and then issues and executes the corresponding instructions through the second control line 11.

[0028] The process of using the material volume monitoring device in the silo is as follows:

[0029] Production preparation stage

[0030] First, analyze the stacking form of the material 3 according to the design document, and reasonably arrange the position and quantity of the electronic scale 6. Obtain the formula relationship between the volume and height of the material 3 according to the stacking form of the material 3, and compile a program in the control cabinet.

[0031] Production operation stage:

[0032] Monitor the weight of the material 3 above the electronic scale of this device in real time, and calculate the volume through the program according to the weight of the material 3. The volume can be converted into the total weight data of the material 3 in the yard in real time according to the ore density, and the data can be fed back to the mine intelligent scheduling system in real time, and linked with the scheduling system to realize the intelligent scheduling of the material 3 in the silo 1.

[0033] The software used in the monitoring device can be an off-the-shelf component, which is not the improvement point of the present utility model, and the specific content will not be elaborated here.

[0034] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. A device for monitoring the volume of materials in a silo, comprising a silo (1) for placing materials (3), a first conveyor (2) for conveying the materials (3) into the silo (1), a feeder (4) for outputting the materials (3) in the silo (1), and a second conveyor (5) connected to the feeder (4), characterized in that: It also includes a first control circuit (10) for sensing the weight of the material (3) and calculating the volume of the material (3) based on the sensed weight, a computer (8) for receiving the volume calculated by the first control circuit (10) and converting it into a corresponding instruction, and a second control circuit (11) for receiving and executing the instruction of the computer (8) to control the movement of the first conveyor (2), the feeder (4) and the second conveyor (5).

2. The device for monitoring the volume of materials in a silo according to claim 1, characterized in that: The first control circuit (10) comprises an electronic scale (6) and a first control cabinet (7); the electronic scale (6) is placed on the floor (101) of the silo (1); the electronic scale (6) is in contact with the material (3); and the electronic scale (6), the first control cabinet (7) and the computer (8) are electrically connected.

3. The device for monitoring the volume of materials in a silo according to claim 2, characterized in that: A plurality of electronic scales (6) are arranged on the floor (101) of the silo (1).

4. The device for monitoring the volume of materials in a silo according to claim 1, characterized in that: The second conveyor (5) comprises a second control cabinet (9), and the second control cabinet (9) is electrically connected to the computer (8), the first conveyor (2), the second feeder (4) and the second conveyor (5) respectively.

5. The device for monitoring the volume of materials in a silo according to claim 1, characterized in that: One end of the first conveyor (2) is arranged in the silo (1) and close to the top of the silo (1), and the other end of the first conveyor (2) extends out of the silo (1); one end of the second conveyor (5) is arranged at the lower end of the silo (1), and the other end of the second conveyor (5) extends out of the silo (1); the feeder (4) is connected between the material (3) and the second conveyor (5).

6. The device for monitoring the volume of materials in a silo according to claim 1, characterized in that: The feeder (4) is provided with a valve, and the valve is electrically connected to the second control circuit (11).

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