Flotation machine clean ash x-ray machine detection device

Abstract

The utility model discloses a kind of flotation machine clean coal ash content x-ray machine detection device, including screw conveyor, conveying belt, detection box, the output of screw conveyor is placed above conveying belt, conveying belt passes through detection box;Detection box sets X light emitter, X light receiver.The utility model can realize the on-line continuous detection of clean coal, can timely and real-time detection ash content, improve precision to subsequent coal blending, set multiple baffle, shield cover, the shielding effect of X light of line pipe is good, also prevent external light from entering inside and influence X light detection environment, also prevent X light leakage and realize the effect of radiation protection.

Description

Technical Field

[0001] This utility model relates to a device for detecting the ash content of clean coal, specifically a flotation machine device for detecting the ash content of clean coal using an X-ray machine. Background Technology

[0002] The clean coal from the flotation machine needs to be blended. Before blending, the ash content of the clean coal is often tested. Currently, X-ray detectors and moisture meters are installed before blending to detect the amount of gangue and moisture. The X-ray detector uses transmitters and receivers positioned on either side, covered by a shroud. However, this structure is too simple, the X-ray detection accuracy is low, and it is prone to leakage. Furthermore, the ash content is tested before the clean coal enters the blending system, not immediately after it leaves the flotation machine, making it impossible to know the ash content in advance. Utility Model Content

[0003] To address the shortcomings of the existing technology, this invention provides an X-ray detection device for the ash content of clean coal in a flotation machine. This invention enables continuous online detection of clean coal, timely and real-time detection of ash content, and improved accuracy for subsequent coal blending. The device features various baffles, shields, and conduits that effectively block X-rays, preventing external light from entering the interior and affecting the X-ray detection environment, and also preventing X-ray leakage to achieve radiation protection.

[0004] To achieve the above technical objectives, this utility model adopts the following technical solution: a flotation machine clean coal ash X-ray inspection device, comprising a screw conveyor, a conveyor belt, and an inspection box. The output of the screw conveyor is positioned above the conveyor belt, which passes through the inspection box. The inspection box includes a shell, a conduit, a shield, a mounting box, and a limiting plate. An X-ray emitter is installed at the top of the conduit, and its bottom is fixed to the shell. The top of the shield is fixed inside the shell, allowing X-rays to pass through, and its bottom is located directly above the limiting plate. The mounting box is fixed to the lower side of the shell for installing an X-ray receiver. The limiting plate has a first through hole, and the shell has a second through hole. The first and second through holes are aligned and communicate with the mounting box. A support plate is installed in the first through hole, and the conveyor belt runs along the limiting plate.

[0005] The screw conveyor is equipped with a feed pipe and a discharge ramp, with the discharge ramp located directly above the conveyor belt.

[0006] The detection box is a frame structure with openings at both ends, and thick baffles are provided at both ends. The bottom of the thick baffles is located above the limiting plate to reserve running space for the conveyor belt and coal flow.

[0007] The conduit is a frame structure with openings at both ends, with the upper opening used to install the X-ray transmitter and the lower opening aligned with the through hole on the top surface of the housing.

[0008] The upper end of the shield is shaped to match the lower opening of the conduit. The shield gradually increases in size from top to bottom, and its bottom end is lower than the upper surface of the limiting plate and located directly above the support plate.

[0009] The limiting plate is provided with a sinking groove, which has a structure that is wider at the top and narrower at the bottom, and the conveyor belt runs along the bottom surface of the sinking groove; the first through hole is a through hole structure located in the center of the sinking groove.

[0010] The support plate is provided with a baffle, the first through hole is provided with a fixing groove, the baffle is located in the fixing groove, and the upper surface of the support plate is flush with the bottom surface of the sinking groove.

[0011] The mounting box is equipped with a door panel.

[0012] The housing has a mounting bracket at the rear end, and a moisture meter is mounted on the mounting bracket.

[0013] In summary, this utility model achieves the following technical effects: This utility model features a screw conveyor and conveyor belt that enable continuous online detection of clean coal, allowing for timely and real-time ash content monitoring and improving the accuracy of subsequent coal blending. The X-ray detection box and the limiting conveyor belt ensure continuous transport of clean coal, resulting in better alignment and more precise positioning for X-ray and moisture meter detection, thus improving accuracy. Multiple baffles, shielding covers, and conduits effectively block X-rays, preventing external light from entering and affecting the X-ray detection environment, and also preventing X-ray leakage, achieving a radiation protection effect. Attached Figure Description

[0014] Figure 1 It is an X-ray detection device for the ash content of clean coal in a flotation machine; Figure 2 This is a schematic diagram of the testing box; Figure 3 yes Figure 2 A schematic diagram showing the thick baffles hidden in the front and back. Figure 4 yes Figure 3 A schematic diagram of local decomposition in the middle. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings.

[0016] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] Example: Figure 1 This is an X-ray inspection device for clean coal ash in a flotation machine, comprising a screw conveyor 2, a conveyor belt 5, and an inspection box 4. The output of the screw conveyor 2 is positioned above the conveyor belt 5, which passes through the inspection box 4. The inspection box 4 includes a housing 41, a conduit 43, a shield 44, a mounting box 47, and a limiting plate 45. An X-ray emitter 6 is mounted at the top of the conduit 43, and its bottom is fixed to the housing 41. The top of the shield 44 is fixed inside the housing 41, allowing X-rays to pass through, and its bottom is located directly above the limiting plate 45. The mounting box 47 is fixed to the lower side of the housing 41 for mounting an X-ray receiver. The limiting plate 45 has a first through hole 452, and the housing 41 has a second through hole 411. The first through hole 452 and the second through hole 411 are aligned and communicate with the mounting box 47. A support plate 46 is mounted in the first through hole 452, and the conveyor belt 5 runs along the limiting plate 45.

[0022] This invention includes a screw conveyor after the flotation machine to deliver clean coal to the conveyor belt 5. The conveyor belt 5 carries the clean coal to the testing box 4. After X-ray detection and analysis by the moisture meter 9, the conveyor belt carries the clean coal to the designated location. The results of the X-ray detection and the moisture meter are sent to the CPU for analysis.

[0023] This utility model features a screw conveyor and conveyor belt that enable continuous online detection of clean coal, allowing for timely and real-time ash content monitoring and improving the accuracy of subsequent coal blending. The X-ray detection box and the limiting conveyor belt ensure continuous transport of clean coal, resulting in better alignment and more precise positioning for X-ray and moisture meter detection, thus improving accuracy. Multiple baffles, shielding covers, and conduits effectively block X-rays, preventing external light from entering and affecting the X-ray detection environment, and also preventing X-ray leakage, achieving a radiation protection effect.

[0024] The models of the X-ray transmitter and receiver, the moisture meter, the detection principle of X-rays, the detection principle of the moisture meter, as well as the transmission signals and CPU processing signals of both are existing technologies and will not be elaborated here.

[0025] like Figure 1 As shown, the screw conveyor 2 is equipped with a feed pipe 1 and a discharge inclined plate, with the discharge inclined plate located directly above the conveyor belt 5. The conveyor belt is a triangular conveyor, and three pulleys matching the conveyor belt are set at both ends and the bottom of the platform 3. The detection box 4 is fixed on the platform 1, and the platform 1 also has a through hole to provide space for the installation box 47.

[0026] Figure 2This is a schematic diagram of the detection box. The detection box 4 is a frame structure with openings at both ends, and thick baffles 42 are provided at both ends. The bottom of the thick baffles 42 is located above the limiting plate 45 to reserve space for the operation of the conveyor belt 5 and the coal flow.

[0027] Thick baffles are installed at both ends of the conveyor belt's inlet and outlet lines, leaving only the space for the conveyor belt and the clean coal to run. The thick baffles 42 and the outer shell 41 are made of steel and have good radiation protection.

[0028] The conduit 43 is a frame structure with openings at both ends. The upper opening is used to install the X-ray transmitter 6, and the lower opening is aligned with the through hole on the top surface of the outer casing 41.

[0029] The rectangular tube allows X-rays to pass through, and its steel structure provides radiation protection.

[0030] Figure 3 yes Figure 2 The diagram shows the thick baffles hidden in front and behind. The upper end of the shield 44 is shaped to match the lower opening of the conduit 43. The size of the shield 44 gradually increases from top to bottom, and the bottom end is lower than the upper surface of the limiting plate 45 and is located directly above the support plate 46.

[0031] The upper end of the shield connects to the tube, and the lower end is located directly above the X-ray receiver. The shield has an outward-expanding structure, which is used to deliver X-rays and also to achieve a shielding effect.

[0032] Figure 4 yes Figure 3 The partial exploded view shows that the limiting plate 45 is provided with a sinking groove 451, which has a structure that is wider at the top and narrower at the bottom. The conveyor belt 5 runs along the bottom surface of the sinking groove 451. The first through hole 452 is a through hole structure set in the center of the sinking groove 451.

[0033] The top-wide, bottom-narrow design limits the conveyor belt at the bottom while leaving space at the top for X-ray reception. The first through hole 452 is positioned in the center to prevent X-ray leakage due to deviation.

[0034] The support plate 46 is provided with a baffle 461, the first through hole 452 is provided with a fixing groove 453, the baffle 461 is located in the fixing groove 453, and the upper surface of the support plate 46 is flush with the bottom surface of the sinking groove 451.

[0035] The support plate 46 is made of carbon fiber, high-strength engineering plastics, etc. The thickness of the support plate 46 is less than that of the limiting plate 45, resulting in less attenuation of X-rays and improving the accuracy of X-ray detection. The support plate is easy to remove and can be placed directly on the conveyor belt, providing support and preventing the coal from sinking and causing the conveyor belt to stop.

[0036] The mounting box 47 is equipped with a door panel 471, which is located below the platform for easy inspection and maintenance of the receiver.

[0037] The outer casing 41 has a mounting bracket 8 at its rear end, and a moisture meter 9 is mounted on the mounting bracket 8. The moisture meter is located behind the X-ray inspection box and is used to detect the moisture content of the clean coal.

[0038] Working principle: The feed pipe 1 of the screw conveyor 2 is located below the discharge port of the centrifuge (not shown). It is responsible for collecting clean coal samples and uniformly conveying the samples to the conveyor belt via the screw. The X-ray inspection box is located on the conveyor belt and uses the principle of X-ray transmission and elemental specific gravity relationship to identify the proportion of gangue in the coal (this is existing technology). The moisture meter is located directly above the conveyor belt and detects changes in the moisture content of the clean coal stream.

[0039] After receiving two signals, the CPU automatically analyzes the amount of gangue and moisture in the coal sample through logical operations, and calculates the ash content of the refined coal product (this is the existing technology).

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A flotation machine clean coal ash X-ray detection device, characterized in that: The system includes a screw conveyor (2), a conveyor belt (5), and a detection box (4). The output of the screw conveyor (2) is positioned above the conveyor belt (5), which passes through the detection box (4). The detection box (4) includes a housing (41), a conduit (43), a shield (44), a mounting box (47), and a limiting plate (45). An X-ray emitter (6) is mounted on the top of the conduit (43), and its bottom is fixed to the housing (41). The top of the shield (44) is fixed inside the housing (41) and allows X-rays to pass through. The light passes through, and the bottom end is located directly above the limiting plate (45). The mounting box (47) is fixed to the lower side of the outer shell (41) for mounting the X-ray receiver. The limiting plate (45) is provided with a first through hole (452), and the outer shell (41) is provided with a second through hole (411). The first through hole (452) and the second through hole (411) are aligned and communicate with the mounting box (47). The first through hole (452) is provided with a support plate (46), and the conveyor belt (5) runs along the limiting plate (45).

2. The X-ray detection device for clean coal ash in a flotation machine according to claim 1, characterized in that: The screw conveyor (2) is equipped with a feed pipe (1) and a discharge sloping plate, which is located directly above the conveyor belt (5).

3. The X-ray detection device for clean coal ash in a flotation machine according to claim 1, characterized in that: The detection box (4) is a frame structure with openings at both ends, and thick baffles (42) are provided at both openings. The bottom of the thick baffles (42) is located above the limiting plate (45) to reserve space for the operation of the conveyor belt (5) and the coal flow.

4. The X-ray detection device for clean coal ash in a flotation machine according to claim 1, characterized in that: The conduit (43) is a frame structure with openings at both ends. The upper opening is used to install the X-ray transmitter (6), and the lower opening is aligned with the through hole on the top surface of the outer shell (41).

5. The X-ray detection device for clean coal ash in a flotation machine according to claim 1, characterized in that: The upper end of the shield (44) is shaped to match the lower opening of the conduit (43). The shield (44) gradually increases in size from top to bottom, and its bottom end is lower than the upper surface of the limiting plate (45) and is located directly above the support plate (46).

6. The X-ray detection device for clean coal ash in a flotation machine according to claim 1, characterized in that: The limiting plate (45) is provided with a sinking groove (451), which is a structure that is wider at the top and narrower at the bottom. The conveyor belt (5) runs along the bottom surface of the sinking groove (451). The first through hole (452) is a through hole structure located in the center of the sinking groove (451).

7. The X-ray detection device for clean coal ash in a flotation machine according to claim 6, characterized in that: The support plate (46) is provided with a baffle (461), and the first through hole (452) is provided with a fixing groove (453). The baffle (461) is located in the fixing groove (453), and the upper surface of the support plate (46) is flush with the bottom surface of the sinking groove (451).

8. The X-ray detection device for clean coal ash in a flotation machine according to claim 1, characterized in that: The mounting box (47) is equipped with a door panel (471).

9. The X-ray detection device for clean coal ash in a flotation machine according to claim 1, characterized in that: The housing (41) has a mounting bracket (8) at the rear end, and the mounting bracket (8) is equipped with a moisture meter (9).

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