Material pre-processing device for coal quality spectrum detection

Abstract

The utility model discloses a material pre-processing device for coal quality spectrum detection, which is used for pre-processing a coal quality material needing spectrum detection, and comprises a material inlet, a two-way conveying belt mechanism and a shaping and sample pressing device, the material inlet is used for feeding the material onto the two-way conveying belt mechanism, and the shaping and sample pressing device is used for pressing the material onto the two-way conveying belt mechanism; the two-way conveying belt mechanism can realize positive and negative rotation, so that the materials are conveyed to the shaping and sample pressing device when the subsequent process is normal and are discharged when the subsequent process is abnormal, and the shaping and sample pressing device is used for shaping and pressing the materials so as to meet the material requirement state of spectrum detection. According to the material pre-processing device for spectrum detection of coal quality, by arranging the feeding port, the bidirectional conveying belt mechanism and the shaping and sample pressing device, materials can be processed to meet the material requirement state of spectrum detection, whole-process automation can be achieved, manual carrying is not needed, the labor intensity is reduced, the working efficiency is greatly improved, and the labor intensity is reduced. Meanwhile, the treatment quality is also improved.

Description

Technical Field

[0001] This application relates to the field of detection technology, and in particular to a material pretreatment device for coal quality spectral detection. Background Technology

[0002] The clean and efficient utilization of coal is crucial to the national economy, and intelligent coal production is one of the effective ways to achieve this. In the process of intelligent coal production, online and precise monitoring of raw coal is a key step.

[0003] Currently, the most widely used sample testing methods in China are industrial analysis and elemental analysis, which can obtain comprehensive and reliable sample composition data. However, industrial analysis and elemental analysis are carried out in the laboratory according to national standards, which is a complex process with high requirements for sample preparation and a long testing cycle.

[0004] In recent years, spectroscopic detection technology, as a highly efficient and non-destructive testing technique, has been increasingly applied to the structural detection of coal and coke, and is being used for online coal analysis. Spectroscopic detection methods have high requirements for material particle size, which has a crucial impact on the results. Existing spectroscopic detection technologies generally require pretreatment of the material powder sample, such as pressing into cakes or melting, before spectroscopic analysis.

[0005] However, the current pretreatment method requires manual handling, which is labor-intensive, inefficient, and can cause sample spillage due to improper manual operation, affecting the subsequent sample analysis results. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a material pretreatment device for coal quality spectral detection with high working efficiency and good processing quality.

[0007] The technical solution provided by this utility model is as follows:

[0008] A material pretreatment device for coal quality spectral detection is used to pre-process coal materials that require spectral detection. The device includes an inlet, a bidirectional conveyor belt mechanism, and a shaping and pressing device. The inlet allows material to enter and reach the bidirectional conveyor belt mechanism, which is capable of forward and reverse rotation. This allows the material to be transferred to the shaping and pressing device when the subsequent process is normal, and to be discharged when the subsequent process is abnormal. The shaping and pressing device is used to shape and press the material to meet the material requirements for spectral detection.

[0009] Preferably, the bidirectional conveyor belt mechanism has an abnormal discharge port on one side for discharging materials when a subsequent process is abnormal.

[0010] Preferably, the bidirectional conveyor belt mechanism is provided with a first adjustment mechanism, which is used to adjust the speed according to the processing capacity of the subsequent process.

[0011] Preferably, the shaping and pressing device includes a material height limiting mechanism, a material shaping mechanism, and a pressing mechanism. The material height limiting mechanism is used to reduce the material height to a certain height. The material shaping mechanism is used to break up agglomerated coal samples or flaked coal samples. The pressing mechanism is used to press the shaped material.

[0012] Preferably, the pressing mechanism includes a base, a driving device, a front roller, a rear roller, and a transmission device, so that the front roller is driven to rotate under the action of the driving device, and then the rear roller is driven to rotate together through the transmission device, wherein the bottom of the front roller is higher than the rear roller.

[0013] Preferably, the front roller and the rear roller are rollers of the same diameter, and the installation height of the front roller is higher than that of the rear roller.

[0014] Preferably, the bidirectional conveyor belt mechanism is located below the center of the inlet, and the shaping and pressing device is located below one side of the bidirectional conveyor belt mechanism.

[0015] Preferably, a crushing device and a transfer belt mechanism are provided between the bidirectional conveyor belt mechanism and the shaping and pressing device. The crushing device is used to crush the incoming material to the required particle size of the material to be tested, and the transfer belt mechanism is used to transport the crushed material to the shaping and pressing device.

[0016] Preferably, the conveyor belt mechanism is provided with a second adjustment mechanism, which is used to adjust the coal conveying speed of the conveyor belt mechanism according to the coal processing capacity of the shaping and pressing device.

[0017] Preferably, the crushing device is located below one side of the bidirectional conveyor belt mechanism, the transfer belt mechanism is located directly below the crushing device, and the shaping and pressing device is located below one side of the transfer belt mechanism.

[0018] Compared with existing technologies, the material pretreatment device for coal quality spectral detection of this utility model can process materials into a state that meets the requirements of spectral detection by setting up an inlet, a bidirectional conveyor belt mechanism, and a shaping and pressing device. It can also achieve full automation, eliminate the need for manual handling, reduce labor intensity, greatly improve work efficiency, and improve processing quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the first embodiment of the material pretreatment device for coal quality spectral detection of this utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the sample pressing mechanism in the material pretreatment device for coal quality spectral detection is shown.

[0022] Figure 3 for Figure 2 Cross-sectional view of the front and rear rollers in the sample pressing mechanism shown;

[0023] Figure 4 This is a schematic diagram of the second embodiment of the material pretreatment device for coal quality spectral detection of this utility model. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] 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 application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0028] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0029] like Figure 1 As shown, the first embodiment of this utility model provides a material pretreatment device for coal quality spectral detection, used to pretreatment coal materials that require spectral detection. This embodiment addresses the situation where the material needs to be crushed.

[0030] The material pretreatment device includes an inlet 11, a bidirectional conveyor belt mechanism 12, a crushing device 13, a transfer belt mechanism 14, and a shaping and pressing device 15. The inlet 11 allows material to enter and reach the bidirectional conveyor belt mechanism 12. In this embodiment, the bidirectional conveyor belt mechanism 12 is located below the center of the inlet 11, the crushing device 13 is located below one side of the bidirectional conveyor belt mechanism 12 (left side in this embodiment), the transfer belt mechanism 14 is located directly below the crushing device 13, and the shaping and pressing device 15 is located below one side of the transfer belt mechanism 14 (left side in this embodiment).

[0031] The bidirectional conveyor belt mechanism 12 can reverse direction, allowing materials to be conveyed to the shaping and pressing device 15 when the subsequent process is normal, and to be discharged when the subsequent process is abnormal. In this embodiment, the bidirectional conveyor belt mechanism 12 has an abnormal discharge port 121 on one side (right side in this embodiment) for discharging materials when the subsequent process is abnormal. After discharge from the abnormal discharge port 121, the material can be manually processed or sent to the sample storage area. Furthermore, the bidirectional conveyor belt mechanism 12 is equipped with a first adjustment mechanism, which is used to adjust the speed according to the processing capacity of the subsequent process. In this way, when the coal flow rate of the conveyor belt is greater than the crushing processing capacity of the crushing device 13 (or other subsequent processes), the speed of the bidirectional conveyor belt can be appropriately reduced to reduce the coal flow rate, meet the normal operation of the crusher, and prevent abnormalities such as coal blockage, jamming, or stalling of the crusher.

[0032] The crushing device 13 is used to crush the incoming material to the required particle size of the material to be tested, that is, the particle size of the material that the rapid sample testing device can detect. In this embodiment, the crushing device 13 can be a crusher used in the national standard sample preparation and testing field, or it can be a combination of multiple crushers. In this embodiment, a crusher that crushes 13mm material to 3mm is used. Because the rapid sample testing device has high requirements for material particle size, the smaller the material particle size, the more accurate the test results. Therefore, the crushing device 13 can also be a combination of crushers that crush materials to 1mm or smaller particle size.

[0033] The conveyor belt mechanism 14 is used to transport the crushed material to the shaping and pressing device 15. In this embodiment, the conveyor belt mechanism 14 is equipped with a second adjustment mechanism, which is used to adjust the coal conveying speed of the conveyor belt mechanism 14 according to the coal processing capacity of the shaping and pressing device 15. When the shaping and pressing device 15 cannot handle the load and material accumulation is found, the rotation speed of the conveyor belt mechanism 14 can be reduced, that is, the coal conveying speed can be reduced; when the processing capacity of the shaping and pressing device 15 is sufficient and the height of the pressed material is insufficient or not full, the speed of the conveyor belt mechanism 14 can be increased accordingly to ensure that the shaping and pressing device 15 can press out a sufficiently good flat surface of the material for rapid detection.

[0034] The shaping and pressing device 15 is used to press materials to meet the material requirements for spectral detection. In this embodiment, the shaping and pressing device 15 includes a material height limiting mechanism 151, a material shaping mechanism 152, and a pressing mechanism 153. The material height limiting mechanism 151 is used to reduce the material height to a certain height, and is equipped with a flow limiting plate. The gap and height between the flow limiting plate and the conveyor belt can be adjusted according to the particle size of the incoming coal sample. The material shaping mechanism 152 is used to break up agglomerated or flaked coal samples, and has the functions of mixing, spreading, and leveling the coal sample. It can adopt a structure in which a motor drives scrapers to rectify and break up the sample. The pressing mechanism 153 is used to press the shaped material.

[0035] During the conveying process, the material moves with the conveyor belt. First, the material height is reduced by the material height limiting mechanism 151 to maintain a certain proportional relationship between the material height and the coal sample height at the subsequent pressing roller. Next, the material shaping mechanism 152 flattens, evens, and mixes the material to reduce accumulation and also breaks up any clumps or flaky coal samples, facilitating subsequent pressing. The material then moves to the pressing mechanism 153, where it is pressed to form a coal sample surface that meets the requirements for subsequent rapid testing. After testing, the coal sample flows out from the discharge port to the waste collection point for unified processing.

[0036] like Figure 2 , Figure 3As shown, in this embodiment, the pressing mechanism 153 includes a base 1531, a driving device 1532, a front roller 1533, a rear roller 1534, and a transmission device 1535. Under the action of the driving device 1532, the front roller 1533 is driven to rotate, and then the rear roller 1534 is driven to rotate together through the transmission device 1535. The driving device 1532, the front roller 1533, the rear roller 1534, and the transmission device 1535 are mounted on the base 1531. This embodiment employs a double-roller structure with a drop design between the rollers. The front roller 1533 and the rear roller 1534 are rollers of the same diameter, but the installation height of the front roller 1533 is higher than that of the rear roller 1534 (other methods can also be used to make the bottom of the front roller higher than the rear roller, for example, the installation height is the same, but the diameter of the front roller is smaller than that of the rear roller). In this way, the front roller 1533 can allow a higher coal seam to pass through, which plays a role in pre-compressing the shaped material. After pre-compression, the material is pressed again by the lower rear roller 1534, resulting in a coal seam with a smoother surface and a denser texture, which is beneficial for subsequent rapid coal quality testing to obtain more accurate analytical results. Of course, in other embodiments, a multi-stage roller structure such as three-stage or four-stage rollers can also be used.

[0037] The normal operating procedure of the material pretreatment device in this embodiment is as follows: the material enters from the feed port 11 → the bidirectional conveyor belt mechanism 12 transports it to the left → the crushing device 13, the crushing device 13 quickly crushes the material to the required particle size for testing → the transfer belt mechanism 14 → the shaping and pressing device 15 spreads the crushed material thinly and evenly, then flattens, compacts and compacts it, and then transports it to the rapid sample detection device 16 for sample analysis.

[0038] When the crushing device 13 and downstream devices malfunction and cannot work properly, the material enters from the feed port 11 → is conveyed to the right by the bidirectional conveyor belt mechanism 12 → abnormal discharge port 121 on the right side of the bidirectional conveyor belt mechanism 12 → temporarily stored or manually handled.

[0039] like Figure 4 As shown, the material pretreatment device for coal quality spectral detection provided in the second embodiment of this utility model is designed for situations where the material does not require crushing. Compared to the first embodiment, the main difference in this embodiment is that the crushing device and the conveyor belt mechanism are omitted. Therefore, the bidirectional conveyor belt mechanism 22 is located below the middle of the feed inlet 21, and the shaping and pressing device 23 is located directly below one side of the bidirectional conveyor belt mechanism 22 (on the left side in this embodiment).

[0040] The normal operating procedure of the material pretreatment device in this embodiment is as follows:

[0041] Material enters from feed inlet 21 → bidirectional conveyor belt mechanism 22 transports it to the left → shaping and pressing device 23 spreads the crushed material thinly and evenly, then flattens, compacts and compacts it, and then transports it to sample rapid detection device 24 for sample analysis.

[0042] When an error occurs and the system cannot function normally, the operation process is as follows:

[0043] Material enters from inlet 21 → is conveyed to the right by bidirectional conveyor belt mechanism 22 → abnormal discharge port 221 on the right side of bidirectional conveyor belt mechanism 22 → temporarily stored or manually handled.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A material pretreatment device for coal quality spectral detection, used for pretreatment of coal materials requiring spectral detection, characterized in that, It includes a feed inlet, a bidirectional conveyor belt mechanism, and a shaping and pressing device. The feed inlet is used to allow materials to enter and reach the bidirectional conveyor belt mechanism, which can achieve forward and reverse rotation. When the subsequent process is normal, the material is transferred to the shaping and pressing device, and when the subsequent process is abnormal, the material is discharged. The shaping and pressing device is used to shape and press the material to meet the material requirements of spectral detection.

2. The material pretreatment device for coal quality spectral detection as described in claim 1, characterized in that, The bidirectional conveyor belt mechanism is provided with an abnormal discharge port on one side for discharging materials when a subsequent process is abnormal.

3. The material pretreatment device for coal quality spectral detection as described in claim 1, characterized in that, The bidirectional conveyor belt mechanism is provided with a first adjustment mechanism, which is used to adjust the speed according to the processing capacity of the subsequent process.

4. The material pretreatment device for coal quality spectral detection as described in claim 1, characterized in that, The shaping and pressing device includes a material height limiting mechanism, a material shaping mechanism, and a pressing mechanism. The material height limiting mechanism is used to reduce the material height to a certain height. The material shaping mechanism is used to break up agglomerated coal samples or flaked coal samples. The pressing mechanism is used to press the shaped material.

5. The material pretreatment device for coal quality spectral detection as described in claim 4, characterized in that, The pressing mechanism includes a base, a drive device, a front roller, a rear roller, and a transmission device. The drive device drives the front roller to rotate, and the transmission device drives the rear roller to rotate together. The bottom of the front roller is higher than the rear roller.

6. The material pretreatment device for coal quality spectral detection as described in claim 5, characterized in that, The front and rear rollers are rollers of the same diameter, and the installation height of the front roller is higher than that of the rear roller.

7. The material pretreatment device for coal quality spectral detection as described in claim 1, characterized in that, The bidirectional conveyor belt mechanism is located below the center of the inlet, and the shaping and pressing device is located below one side of the bidirectional conveyor belt mechanism.

8. The material pretreatment device for coal quality spectral detection as described in any one of claims 1 to 7, characterized in that, Between the bidirectional conveyor belt mechanism and the shaping and pressing device, there is also a crushing device and a transfer belt mechanism. The crushing device is used to crush the incoming material to the required particle size of the material to be tested, and the transfer belt mechanism is used to transport the crushed material to the shaping and pressing device.

9. The material pretreatment device for coal quality spectral detection as described in claim 8, characterized in that, The conveyor belt mechanism is provided with a second adjustment mechanism, which is used to adjust the coal conveying speed of the conveyor belt mechanism according to the coal processing capacity of the shaping and pressing device.

10. The material pretreatment device for coal quality spectral detection as described in claim 8, characterized in that, The crushing device is located below one side of the bidirectional conveyor belt mechanism, the transfer belt mechanism is located directly below the crushing device, and the shaping and pressing device is located below one side of the transfer belt mechanism.

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