Coal dressing medium magnetism detection device

Abstract

The invention discloses a coal dressing medium magnetism detection device which comprises a support, a first box body is arranged on the support, the front side of the first box body is provided with an opening, a turnover mechanism and a storage table are arranged in the first box body, a container with an opening in the top and a weighing sensor used for detecting the weight of the container are arranged on the storage table, and the turnover mechanism is used for driving the storage table to turn over. The top of the first box body is provided with a second box body communicated with the first box body, the top of the second box body is provided with an electric telescopic cylinder, and the telescopic end of the electric telescopic cylinder is provided with an electromagnet; the electric telescopic cylinder can drive the electromagnet to penetrate through the first box body and stretch into the container. The device can accurately detect the content of magnetic substances in a medium, and is convenient to use, simple to operate and high in practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mines, and in particular to a magnetic detection device for coal selection media. Background Art

[0002] The main function of a coal preparation plant is to sort raw coal, remove mineral impurities, and separate it into products of different specifications. At present, coal preparation plants mainly separate coal through physical methods, including heavy medium coal preparation, flotation, magnetic separation, and electrostatic separation. Among them, heavy medium coal preparation is one of the most commonly used methods, which uses media of different densities to separate coal to achieve the purpose of sorting. In the heavy medium coal preparation process, the magnetic content of the medium directly affects its density and stability. Therefore, it is necessary to regularly measure the magnetic content of the medium and adjust the medium ratio according to the measurement results to optimize the coal preparation process and improve product quality. The existing methods for detecting the magnetic content of the medium are rough and primitive, and there are no effective detection tools or equipment. In most cases, operators judge based on experience, which results in large errors and affects the quality of coal preparation.

[0003] In view of this, it is necessary to improve the existing technology. Summary of the invention

[0004] The object of the present invention is to provide a magnetic detection device for coal selection medium, aiming to solve at least one of the technical problems existing in the above-mentioned prior art. To achieve the above-mentioned object, the technical solution adopted is as follows:

[0005] A coal preparation medium magnetic detection device comprises a bracket, a first box body is arranged on the bracket, the front side of the first box body is opened, a turning mechanism and a storage table are arranged in the first box body, a container with a top opening and a weighing sensor for detecting the weight of the container are arranged on the storage table, the turning mechanism is used to drive the storage table to turn over, and can realize pouring out the medium sample in the container from the front side opening of the first box body, a second box body connected to the first box body is arranged on the top of the first box body, an electric telescopic cylinder is installed on the top of the second box body, an electromagnet is arranged at the telescopic end of the electric telescopic cylinder, and the electric telescopic cylinder can drive the electromagnet to pass through the first box body and extend into the container.

[0006] Preferably, a delivery pump is also provided on the support for delivering the medium sample into the container.

[0007] Preferably, the bottom of the first box body extends forward and forms a downwardly inclined guide groove.

[0008] Preferably, a crossbeam is fixedly provided on the front side of the first box body, and a water mist nozzle for cleaning the container is arranged on the crossbeam, and the water mist nozzle is connected to an external water pump.

[0009] Preferably, a blower mechanism is provided in the second box.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The invention discloses a coal selection medium magnetic detection device, which can accurately detect the magnetic content in the medium. In addition, the device is easy to use, simple to operate and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention.

[0014] In the figure: 1. bracket; 2. first box; 3. guide groove; 4. container; 5. turning motor; 6. crossbeam; 7. water mist nozzle; 8. delivery pump; 9. second box; 10. electric telescopic cylinder; 11. electromagnet. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] like Figure 1 As shown, a preferred embodiment of the present invention provides a coal selection medium magnetic detection device.

[0018] The device includes a bracket 1, which is a square frame structure. A first box body 2 is fixedly installed on the top of the bracket 1. The front side of the first box body 2 is opened. The bottom surface of the first box body 2 extends forward and tilts downward to form a guide groove 3.

[0019] The first box body 2 is provided with a flipping mechanism and a storage table. The storage table is L-shaped and is formed by connecting a horizontal plate and a vertical plate. A container 4 with a top opening is installed on the horizontal plate for containing a medium sample. A weighing sensor is arranged between the horizontal plate and the container 4 for weighing the mass of the container. The flipping mechanism includes a flipping motor 5, which is fixedly mounted on the side panel of the first box body 2. The output shaft of the flipping motor 5 is vertically fixedly connected to the vertical plate. The rotation of the flipping motor 5 can drive the storage table to flip, so that the medium sample in the container 4 can be poured out from the front opening of the first box body 2 and flow to a designated position along the guide groove 3.

[0020] Furthermore, a crossbeam 6 is provided on the front side of the first box body 2. Specifically, the crossbeam 6 is fixedly connected to the top of the first box body 2. A water mist nozzle 7 is provided on the crossbeam 6. The water mist nozzle 7 is connected to an external water pump and is used to clean the container 4.

[0021] A mounting plate is provided in the middle of the bracket 1 , on which a delivery pump 8 is mounted. The output end of the delivery pump 8 extends into the first box body 2 through a pipeline, and is used to deliver the medium sample into the container 4 .

[0022] A second box body 9 connected to the first box body 2 is arranged on the top of the first box body 2, and an electric telescopic cylinder 10 is installed on the top of the second box body 9. An electromagnet 11 is fixedly arranged on the telescopic end of the electric telescopic cylinder 10. The electromagnet 11 is magnetic when energized and disappears when powered off. The electric telescopic cylinder 10 can drive the electromagnet 11 to pass through the first box body 2 and extend into the container 4.

[0023] Furthermore, a blower mechanism is provided in the second box body 9 . Specifically, the blower mechanism is a fan provided inside the second box body 9 .

[0024] The working principle of the detection device in this embodiment is as follows:

[0025] The delivery pump 8 delivers an appropriate amount of the medium sample to be tested into the container 4, and the total mass of the container 4 is read by the weighing sensor, and the net weight of the medium sample is calculated. Then the electric telescopic cylinder 10 drives the electromagnet 11 to move downward into the container 4, and at the same time the electromagnet 11 is energized and absorbs the magnetic material in the medium sample. After a certain period of time, the electric telescopic cylinder 10 drives the electromagnet 11 to move upward into the second box 9. Then the fan is started to blow the liquid material attached to the surface of the magnetic material absorbed by the electromagnet 11 into the container 4. When there is no liquid material dripping, the total mass of the container 4 is read for the second time. The difference between the total mass of the container 4 read for the first time is the mass of the magnetic material, and then the mass percentage of the magnetic material content in the medium sample can be calculated.

[0026] After the detection is completed, the electromagnet 11 is powered off, and the magnetic material attached to it will fall into the container 4. Then the flip motor 5 drives the storage table to flip, and then the medium sample in the container 4 is poured out along the backflow groove 3. At the same time, the water mist nozzle 7 is turned on to rinse the inside of the container 4 for next use.

[0027] In summary, the coal selection medium magnetic detection device described in the embodiment of the present invention can accurately detect the magnetic content in the medium. In addition, the device is easy to use, simple to operate, and highly practical.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coal selection medium magnetic detection device, comprising a bracket, characterized in that: A first box body is arranged on the bracket, and the front side of the first box body is opened. A flipping mechanism and a storage table are arranged in the first box body. A container with a top opening and a weighing sensor for detecting the weight of the container are arranged on the storage table. The flipping mechanism is used to drive the storage table to flip, and can realize pouring out the medium sample in the container from the front side opening of the first box body. A second box body connected to the first box body is arranged on the top of the first box body, and an electric telescopic cylinder is installed on the top of the second box body. An electromagnet is arranged at the telescopic end of the electric telescopic cylinder, and the electric telescopic cylinder can drive the electromagnet to pass through the first box body and extend into the container.

2. A coal selection medium magnetic detection device according to claim 1, characterized in that: The support is also provided with a delivery pump for delivering the medium sample into the container.

3. A coal selection medium magnetic detection device according to claim 1, characterized in that: The bottom of the first box body extends forward and forms a downwardly inclined guide groove.

4. A coal selection medium magnetic detection device according to claim 1, characterized in that: A crossbeam is fixedly arranged on the front side of the first box body, and a water mist nozzle for cleaning the container is arranged on the crossbeam, and the water mist nozzle is connected to an external water pump.

5. A coal selection medium magnetic detection device according to claim 1, characterized in that: The second box body is provided with a blower mechanism.

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