Intelligent detection equipment for coal quality detection

Abstract

The present application relates to coal quality detection technical field, specifically speaking, it is a kind of intelligent detection equipment for coal quality detection;Including rotary shell and the rotary cavity inside the rotary shell;Rotary cavity inner wall is rotatably connected with rotating roller;Two rotating roller outer walls are transmission connected with transmission bar;Two transmission bars are embedded in the front and rear inner walls of rotary cavity, and two transmission bars are fixedly connected by transmission rod;The weighing plate is rotatably connected on the transmission rod;Rotary cavity center is fixedly connected with the support block for supporting containment cover;The outer surface of weighing plate is fixedly connected with containment cover;The present application is connected by transmission in the rotary cavity and the circulating containment cover, so that the coal in feed hopper can continuously enter the containment cover, and the weighing plate can capture the weight of coal before and after moisture evaporation, realize the real-time detection of coal moisture evaporation process, also realize the continuous detection of the whole coal quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal quality detection, in particular to an intelligent detection equipment for coal quality detection. BACKGROUND

[0002] In the whole chain operation of the coal industry, coal quality detection is the core hub of maintaining the efficient operation and healthy development of the industry, and its importance is self-evident. The "coal quality" here does not simply refer to the weight concept, but focuses on the comprehensive quality level composed of multiple dimensions such as energy properties and physical and chemical characteristics. Coal quality evaluation is a rigorous and complex systematic work involving multiple core indicators such as ash content, calorific value, moisture content, volatile matter proportion, and sulfur content. These indicators are interrelated and influence each other, and together build a precise scale to measure the quality of coal.

[0003] Among them, coal moisture detection is a key link in the coal quality detection system. The moisture content in coal is like a "double-edged sword" that has a profound impact on each link of the whole life cycle of coal. From the perspective of energy utilization, excessive moisture can significantly dilute the effective calorific value of coal, resulting in insufficient energy release during the combustion process of coal, causing energy waste. Taking thermal power generation as an example, when high-moisture coal enters the boiler for combustion, the moisture in the coal needs to absorb a large amount of heat to evaporate, thereby reducing the combustion efficiency of the coal and increasing the cost of power generation. In the storage link, high-moisture coal is prone to spontaneous combustion, which not only threatens the safety of storage, but also leads to a decrease in coal quality; in the transportation process, excessive moisture will undoubtedly increase transportation costs, as the transportation carrier not only carries the coal itself, but also the additional "dead weight". Therefore, accurate detection of the moisture content of coal is a necessary prerequisite for scientific evaluation of coal quality and ensuring the safe and efficient operation of coal in production, storage, transportation, trading, and use.

[0004] Currently, coal moisture detection generally relies on specific professional equipment. The detection process is usually as follows: first, the initial weight of coal that has not been subjected to volatile treatment is measured, then the moisture in the coal is fully evaporated through heating, and finally the coal that has completed the evaporation treatment is weighed again, and the moisture content of the coal is accurately calculated by the difference between the two weights. However, this traditional detection method has significant drawbacks. From the first weighing, heating and evaporation, to the second weighing, the entire detection process is time-consuming and lengthy. Each batch of coal detection needs to go through a long period, which causes other batches of coal to be forced to wait during the single batch detection process, seriously restricting the overall efficiency of coal quality detection. This inefficient detection mode not only cannot meet the continuous and real-time detection needs of coal quality, but also greatly hinders the operation rhythm of coal production, trading, and other links, becoming a bottleneck that needs to be broken through for the high-quality development of the industry. SUMMARY

[0005] In order to make up for the deficiencies of the prior art, the application provides an intelligent detection equipment for coal quality detection, which can continuously feed the coal in the feeding hopper into the containing cover in the rotary cavity, capture the weight of the coal before and after water evaporation through the weighing plate, realize real-time detection of the water evaporation process in the coal, and realize continuous detection of the whole coal quality.

[0006] The technical scheme adopted by the application to solve the technical problems is: the intelligent detection equipment for coal quality detection comprises a rotary shell and a rotary cavity in the rotary shell; rotating rollers are rotationally connected to the inner wall of the rotary cavity; transmission bars are transmissionally connected to the outer walls of the two rotating rollers; the two transmission bars are embedded in the front and rear inner walls of the rotary cavity, and the two transmission bars are fixedly connected through a transmission rod; a weighing plate is rotationally connected to the transmission rod; a support block for supporting the containing cover is fixedly connected to the center of the rotary cavity; the containing cover is fixedly connected to the outer surface of the weighing plate; the size of the containing cover increases away from the corresponding weighing plate; the openings of the adjacent containing covers in the upright or upside-down state are in contact; heating wires are arranged in the rotary shell; a feeding hopper is arranged in the rotary cavity in the upward direction, and a discharging hopper is arranged in the downward direction; the containing cover passes through the feeding hopper and the discharging hopper; the bottom of the rotary shell is fixedly connected to a supporting leg; and one of the rotating rollers is driven by a motor.

[0007] Preferably, the inner wall of the containing cover is fixedly connected with a spectrum detection probe, a ray detection probe and a visual detection probe.

[0008] Preferably, the containing cover comprises two baffles in the transmission direction and a first filter screen in the front-rear direction; the two baffles on the containing cover in the upright state are arranged in an inverted octagonal shape; the edges of the baffles away from the corresponding weighing plate are provided with extension grooves; an extension plate is slidably connected in the extension grooves; the extension plate and the groove bottom are connected through a first spring; the width of the extension plate and the front and rear inner walls of the rotary cavity is adapted; an exhaust groove is arranged in the upward direction in the inner wall of the rotary cavity; a second filter screen is fixedly connected in the exhaust groove; and the left-right direction length of the exhaust groove is less than the distance between the two containing covers away from each other in the upright state.

[0009] Preferably, a triangular strip is fixedly connected to the inner bottom wall of the rotary cavity; the triangular strip comprises a left inclined surface and a right vertical surface; the weighing plate moving from right to left is in contact with the support block, and the weighing plate moving from left to right is out of contact with the support block.

[0010] Preferably, the rotating shell has movable grooves on its front and rear sides; a movable plate is slidably and sealed within the movable groove; one of the rotating rollers passes through the central rod; the central rod is fixedly connected to the output shaft of the motor; the central rod movably and sealed through the movable plate; a first inclined sleeve and a second inclined sleeve are movably connected to the outer wall of the central rod; the first inclined sleeve is fixedly connected to the movable plate, and the second inclined sleeve is connected to the outer wall of the central rod, with the first and second inclined sleeves positioned close to each other at an angle; the movable plate is connected to the bottom of the movable groove by a second spring; the movable groove is connected to the rotating cavity through a one-way air outlet; and a one-way air inlet is provided through the movable plate.

[0011] Preferably, the second oblique sleeve is provided with a threaded hole along the radial direction; a bolt is threaded into the threaded hole; the bolt is able to contact the outer wall of the central bar.

[0012] Preferably, the two movable plates are arranged in opposite directions within their respective movable slots; the one-way vent is located near the lower part of the container cover.

[0013] Preferably, the first filter screen is an elastic filter cloth.

[0014] Preferably, the one-way vent is located within the length of the exhaust groove; the two containers placed opposite each other are offset from the one-way vent in the left-right direction.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention uses a rotating cavity with an internal transmission and a circulating holding hood, which allows coal in the feed hopper to continuously enter the holding hood. The weighing plate can capture the weight of the coal before and after moisture evaporation, realizing real-time detection of moisture evaporation in the coal and continuous detection of the overall coal quality.

[0017] 2. Due to the extension plate, the coal in adjacent containers can be separated by the extension plate, so that the coal in each container can be discharged independently, avoiding mixing. The independently discharged coal can be analyzed independently, further improving the accuracy of coal detection.

[0018] 3. In this invention, the closer the second inclined sleeve is to the rotating cavity, the larger the range of motion between the second inclined sleeve and the first inclined sleeve, resulting in a larger movement amplitude of the movable plate. Conversely, the farther the second inclined sleeve is from the rotating cavity, the smaller the range of motion between the second inclined sleeve and the first inclined sleeve, resulting in a smaller movement amplitude of the movable plate. Thus, while maintaining a constant speed of movement of the holding hood driven by the transmission bar, the drying efficiency can be adjusted according to the type and variety of coal to avoid under-drying or over-drying, making coal moisture detection smoother. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 yes Figure 1 Rear 3D view;

[0023] Figure 4 yes Figure 3 Enlarged view at point B in the middle;

[0024] Figure 5 This is a diagram showing the location of the unidirectional air outlet in this invention;

[0025] Figure 6 This is a partial cross-sectional view of the present invention;

[0026] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0027] Figure 8 This is a perspective view of the weighing plate and the container cover in this invention.

[0028] In the diagram: 1. Rotating shell, 11. Rotating cavity, 12. Support block, 13. Heating wire, 14. Support leg, 15. Exhaust groove, 16. Second filter screen, 17. Movable groove, 18. One-way air outlet, 2. Rotating roller, 21. Transmission bar, 22. Transmission rod, 23. Weighing plate, 24. Motor, 25. Center rod, 26. First oblique sleeve, 27. Second oblique sleeve, 28. Threaded hole, 29. Bolt, 3. Container cover, 31. Baffle, 32. First filter screen, 33. Extension groove, 34. Extension plate, 35. First spring, 4. Feed hopper, 5. Discharge hopper, 6. Triangular bar, 7. Movable plate, 71. Second spring, 72. One-way air inlet. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] like Figures 1 to 8 As shown, the present invention includes the following embodiments:

[0031] Example 1:

[0032] An intelligent testing device for coal quality inspection includes a rotating shell 1 and a rotating cavity 11 inside the rotating shell 1; rotating rollers 2 are rotatably connected to the inner wall of the rotating cavity 11; transmission bars 21 are drive-connected to the outer walls of the two rotating rollers 2; the two transmission bars 21 are embedded in the front and rear inner walls of the rotating cavity 11, and the two transmission bars 21 are fixedly connected to each other by a transmission rod 22; a weighing plate 23 is rotatably connected to the transmission rod 22; and a support block for supporting a holding cover 3 is fixedly connected to the center of the rotating cavity 11. 12; The outer surface of the weighing plate 23 is fixedly connected to the holding cover 3; The size of the holding cover 3 increases as it moves away from the corresponding weighing plate 23; The openings of adjacent holding covers 3 placed upright or upside down are in contact; A heating wire 13 is provided inside the rotating shell 1; A feed hopper 4 is provided through the rotating cavity 11 in the upward direction, and a discharge hopper 5 is provided through the rotating cavity 11 in the downward direction; The holding cover 3 passes through the feed hopper 4 and the discharge hopper 5; The bottom of the rotating shell 1 is fixedly connected to the support leg 14; One of the rotating rollers 2 is driven by a motor 24.

[0033] In this embodiment, the inner wall of the container 3 is embedded and fixed with a spectral detection probe (not labeled in the figure), a radiation detection probe (not labeled in the figure), and a visual detection probe (not labeled in the figure) facing the coal.

[0034] The rotation of motor 24 drives one of the rotating rollers 2 to rotate. During the rotation of roller 2, the transmission bar 21 connected to the outer wall is driven. The transmission bar 21 and the outer wall of the rotating roller 2 can be toothed to increase friction and prevent slippage. As the transmission bar 21 rotates, the transmission rod 22 between the two rotating bars moves accordingly. The transmission rod 22 drives the rotatingly connected weighing plate 23 to move in the transmission direction. During the movement of the weighing plate 23, the holding hood 3 moves synchronously. The operator can pour coal into the feed hopper 4 at any time. The lower end of the feed hopper 4 is always connected to the holding hood 3. Therefore, the coal poured into the feed hopper 4 will flow down the feed hopper 4 to the lower end. The coal is placed in a container hood 3. After entering the container hood 3, the coal falls onto a weighing plate 23. The weighing plate 23 can be understood as a weighing plate. The initial weight of the coal is recorded by the weighing plate 23. Subsequently, the weighing plate 23 and the container hood 3 will move the coal from right to left into the drying area. The drying area is equipped with an electrically energized heating wire 13 to heat the coal in the container hood 3, so that the moisture in the coal evaporates. The weighing plate 23 records the weight of the coal in real time, realizing real-time detection. When the weight of the coal on the weighing plate 23 stops changing or the rate of change is lower than the standard value, it indicates that the moisture in the coal has evaporated completely. The initial weight of the coal is used as a reference for calculating the moisture content of the coal. 3. It can perform real-time detection of moisture evaporation in coal, thereby obtaining a linear curve of moisture evaporation in coal, and the detection data is more complete and diversified. In addition, a spectral detection probe, a radiation detection probe, and a visual detection probe are embedded in the inner wall of the container 3. The working principle of the spectral detection probe is based on the absorption and emission characteristics of different elements or compounds to specific wavelengths of light. When light shines on the coal sample, the elements in the sample absorb light of specific wavelengths. By detecting the intensity and wavelength of the absorbed or emitted light, the type and content of the elements are determined. The radiation detection probe utilizes the characteristics of radiation interaction with matter. For example, when radiation passes through coal, it will scatter and be absorbed by the atoms in the coal. The changes in radiation intensity are used to analyze the coal. Information such as the density and composition of charcoal is obtained through various means. Visual inspection probes acquire and process images to determine the appearance characteristics of coal, such as color, texture, and particle size. Spectroscopic inspection probes can detect components such as ash and sulfur content because different elements have characteristic absorption or emission peaks in their spectra. By analyzing the spectrum, the element content can be determined, thereby estimating the ash and sulfur content. For calorific value, it can be indirectly calculated by detecting the content of elements such as carbon and hydrogen. X-ray inspection probes can detect information such as coal density based on the interaction between X-rays and coal. Visual inspection probes mainly acquire appearance information and cannot directly detect indicators such as ash, calorific value, volatile matter, and sulfur. This multi-faceted approach allows for a wider detection range and more detailed coal testing.As the holding hood 3 approaches the rotating roller 2 on the left, the holding hood 3 will flip downwards with the transmission opening of the transmission bar 21. After the opening of the holding hood 3 is vertically downward, the holding hood 3 will be driven from left to right with the transmission of the transmission bar 21 until the opening of the holding hood 3 is aligned with the discharge hopper 5. At this time, the coal in the holding hood 3 will be discharged along the discharge hopper 5. The feeding hopper 4 will continuously feed the coal, and the discharge hopper 5 will continuously discharge the coal, thus achieving continuous detection.

[0035] In addition, compared with the traditional method of detecting coal moisture twice before and after evaporation, this embodiment has the following advantages:

[0036] a. Leap in efficiency: Traditional two-weighing has a detection gap, while full-process weighing can output data in real time, improving detection efficiency and adapting to high-flow-rate production scenarios; b. Precise traceability: Full-process data recording of drying can trace the moisture change trajectory of abnormal samples, accurately locate abnormal volatilization nodes, and avoid misjudgment based on single data.

[0037] The purpose of this invention is to weigh coal in order to obtain coal quality data and to judge the quality of coal.

[0038] The present invention uses a rotating cavity 11 to drive and circulate a holding hood 3, so that the coal in the feed hopper 4 can continuously enter the holding hood 3. The weighing plate 23 can capture the weight of the coal before and after the moisture evaporates, realizing real-time detection of the moisture evaporation process in the coal, and also realizing continuous detection of the entire coal quality.

[0039] Example 2:

[0040] The container 3 includes two baffles 31 in the transmission direction and a first filter 32 in the front-to-back direction; the two baffles 31 on the container 3 are arranged in an inverted octagon shape; the edge of the baffle 31 away from the corresponding weighing plate 23 is provided with an extension groove 33; an extension plate 34 is slidably connected in the extension groove 33; the extension plate 34 is connected to the bottom of the extension groove 33 by a first spring 35; the extension plate 34 is adapted to the width of the front and rear inner walls of the rotary cavity 11; an exhaust groove 15 is provided through the inner wall of the rotary cavity 11 facing upward; a second filter 16 is fixedly connected in the exhaust groove 15; the length of the exhaust groove 15 in the left-to-right direction is less than the distance between the two container 3s that are far apart when the container is lowered.

[0041] In this embodiment, a triangular strip 6 is fixedly connected to the bottom wall of the rotary cavity 11; the triangular strip 6 includes an inclined surface on the left and a vertical surface on the right; the weighing plate 23 moving from right to left is in contact with the support block 12, and the weighing plate 23 moving from left to right is out of contact with the support block 12.

[0042] Because the baffle 31 has an extension groove 33 at its edge away from the corresponding weighing plate 23, and an extension plate 34 is elastically slidably connected within the extension groove 33, the extension plate 34 abuts against the inner wall of the rotating cavity 11 under the action of the first spring 35 within the extension groove 33. As the holding hood 3 changes from an upright state to an inverted state, the coal inside the holding hood 3 falls onto the bottom wall of the rotating cavity 11 under the action of gravity. Due to the setting of the extension plate 34, the coal in adjacent holding hoods 3 can be separated by the extension plate 34, thus achieving independent discharge of coal in each holding hood 3, avoiding mixing. The independently discharged coal can be analyzed independently, further improving the accuracy of coal detection; furthermore, in the extension... When the extension plate 34 passes the inclined surface of the triangular strip 6, the extension plate 34 will be compressed and overcome the first spring 35 to approach the bottom of the extension groove 33. As the extension plate 34 leaves the inclined surface, there will be a height difference, so that the extension plate 34 extends instantly under the action of the first spring 35. The resulting vibration is transmitted to the holding hood 3, so that the holding hood 3 vibrates. Since the support block 12 does not contact the weighing plate 23 from left to right, the vibrating holding hood 3 will drive the weighing plate 23 to swing back and forth on the weighing plate 23, so that the coal in the holding hood 3 is poured out more thoroughly under the action of vibration and shaking. Finally, the coal will be scraped into the corresponding discharge hopper 5 by the corresponding extension plate 34 for discharge.

[0043] Example 3:

[0044] The rotating shell 1 has movable grooves 17 on its front and rear sides; movable plates 7 are slidably and sealed within the movable grooves 17; one of the rotating rollers 2 passes through a central rod 25; the central rod 25 is fixedly connected to the output shaft of the motor 24; the central rod 25 passes through the movable plate 7 in a movable seal; a first inclined sleeve 26 and a second inclined sleeve 27 are movably connected to the outer wall of the central rod 25; the first inclined sleeve 26 is fixedly connected to the movable plate 7, and the second inclined sleeve 27 is connected to the outer wall of the central rod 25, with the first inclined sleeve 26 and the second inclined sleeve 27 arranged at an angle close to each other; the movable plate 7 is connected to the bottom of the movable groove 17 by a second spring 71; the movable groove 17 is connected to the rotating cavity 11 through a one-way air outlet 18; and a one-way air inlet 72 is provided through the movable plate 7.

[0045] In this embodiment, the second oblique sleeve 27 is provided with a threaded hole 28 along the radial direction; the threaded hole 28 is internally threaded with a bolt 29; the bolt 29 can contact the outer wall of the center rod 25.

[0046] Both the first inclined sleeve 26 and the second inclined sleeve 27 are located on the outer side of the movable plate 7, and the second spring 71 is located on the inner side of the movable plate 7. Before using the testing equipment for testing, the bolt 29 is loosened first. After being loosened, the bolt 29 will move along the threaded hole 28. After the bolt 29 disengages from the central bar 25, the second inclined sleeve 27 is unlocked. Then, the second inclined sleeve 27 is moved along the central bar 25. The second spring 71 pushes the movable plate 7 away from the rotating cavity 11 by a limited distance. The closer the second inclined sleeve 27 is to the rotating cavity 11, the greater the range of motion of the second inclined sleeve 27 intersecting with the first inclined sleeve 26, making... The greater the range of motion of the movable plate 7, the further the second inclined sleeve 27 is from the rotary cavity 11, and the smaller the range of motion between the second inclined sleeve 27 and the first inclined sleeve 26. This results in a smaller range of motion of the movable plate 7. Thus, while the speed at which the transmission bar 21 drives the holding hood 3 remains constant, the drying efficiency can be adjusted according to the type and variety of coal to avoid under-drying or over-drying, making coal moisture detection smoother. After adjusting the second inclined sleeve 27, tighten the bolt 29 so that the bolt 29 abuts against the outer wall of the center rod 25, and the center rod 25 and the second inclined sleeve 27 are fixed and locked through friction.

[0047] After the adjustment of the second inclined sleeve 27 is completed, the rotation of the motor 24 will drive the rotation of the central rod 25, which in turn will drive one of the rotating rollers 2 to rotate. The rotating roller 2 will drive the transmission bar 21 to move, causing the upper part of the holding cover 3 of the transmission bar 21 to move from right to left. During the rotation of the central rod 25, the second inclined sleeve 27 will rotate, and the second inclined sleeve 27 will rotate relative to the first inclined sleeve 26. Since the first inclined sleeve 26 and the second inclined sleeve 27 are set at an inclined plane when they are close to each other, the second inclined sleeve 27 can squeeze the first inclined sleeve 26 closer to the rotating cavity 11. The first inclined sleeve 26 will drive the movable plate 7 to slide along the movable groove 17 and move closer to the rotating cavity 11. The second spring 71 can drive the movable plate 7 away from the rotating cavity 11 along the movable groove 17. Thus, during the continuous rotation of the second inclined sleeve 27, the movable plate 7 will move along the movable groove. The moving plate 7 moves back and forth towards or away from the rotating chamber 11. As the moving plate 7 moves away from the rotating chamber 11, the space between the moving plate 7 and the bottom of the moving trough 17 increases, creating a negative pressure. External gas enters the space between the moving plate 7 and the bottom of the moving trough 17 through the one-way air inlet 72. When the space between the moving plate 7 and the bottom of the moving trough 17 decreases, the gas in the space between the moving plate 7 and the bottom of the moving trough 17 will drive the heat on the heating wire 13 in the space between the moving plate 7 and the bottom of the moving trough 17 to be discharged through the one-way air outlet 18. The heated gas will enter the rotating chamber 11, pass through the first filter screen 32 and come into contact with the coal in the holding hood 3, thus drying the coal. The moisture contained in the coal will evaporate due to the heat and finally flow out through the second filter screen 16. The weight of the coal before and after dehydration and during the process is collected by the weighing plate 23.

[0048] Example 4:

[0049] The two movable plates 7 are arranged in opposite directions within the corresponding movable slots 17; the one-way vent 18 is located near the lower part of the holding cover 3.

[0050] In this embodiment, the first filter screen 32 is an elastic filter cloth.

[0051] The inclined surface of the first inclined sleeve 26 in the rear movable groove 17 faces rearward and downward, while the inclined surface of the first inclined sleeve 26 in the front movable groove 17 faces forward and upward. The two second inclined sleeves 27 are symmetrically arranged. Thus, when the two second inclined sleeves 27 rotate driven by the same central rod 25, the two second springs 71 ensure that the front movable plate 7 and the rear movable plate 7 always move in opposite directions. When the front movable plate 7 moves backward, it causes the front one-way vent 18 to release air, and the heated air passes through the front first filter 32 and impacts the coal inside the holding hood 3, causing the coal to move backward within the holding hood 3. Conversely, when the rear movable plate 7 moves forward, it causes the rear one-way vent 18 to release air, and the heated air... The coal impacts the coal inside the holding hood 3 as it passes through the rear first filter screen 32, causing the coal to move forward within the holding hood 3. With the continuous rotation of the central rod 25, one of the two unidirectional air outlets 18 always emits air, causing the coal inside the holding hood 3 to move back and forth, thus achieving coal turning over and improving the efficiency of moisture evaporation in the coal. Furthermore, since the first filter screen 32 is an elastic filter cloth, as the movable plate 7 approaches the rotating cavity 11, the airflow can drive the first filter screen 32 to bend towards the inside of the holding hood 3, thereby giving the coal inside the holding hood 3 a thrust, causing the coal inside the holding hood 3 to be squeezed and loosened, avoiding coal accumulation that affects the coal dehydration efficiency, and making the coal dehydration more uniform.

[0052] Example 5:

[0053] The one-way vent 18 is located within the length of the exhaust groove 15; the two containers 3 placed opposite each other are offset from the one-way vent 18 in the left-right direction.

[0054] The holding hood 3, which moves from right to left, is not always impacted by the gas from the one-way vent 18. Before the coal falls into the holding hood 3 along the feed hopper 4 and is weighed and dried by the weighing plate 23, the holding hood 3 is staggered from the one-way vent 18 to avoid affecting the weighing accuracy. In addition, after the coal is dried, it is staggered from the one-way vent 18 to prevent the airflow from impacting the coal and causing it to shake, thus affecting the weighing accuracy. This improves the detection accuracy of the detection equipment.

[0055] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description only, 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. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent testing device for coal quality testing, comprising a rotating shell and a rotating cavity inside the rotating shell; characterized in that: The inner wall of the rotating cavity is rotatably connected to a rotating roller; the outer walls of the two rotating rollers are driven by a transmission bar; the two transmission bars are embedded in the front and rear inner walls of the rotating cavity, and are fixedly connected to each other by a transmission rod; a weighing plate is rotatably connected to the transmission rod; a support block for supporting the container is fixedly connected to the center of the rotating cavity; the container is fixedly connected to the outer surface of the weighing plate; the size of the container increases as it moves away from the corresponding weighing plate; adjacent container openings are arranged in contact when placed upright or upside down; a heating wire is provided inside the rotating shell; a feed hopper extends upward through the rotating cavity, and a discharge hopper extends downward through the rotating cavity; the container passes through the feed hopper and the discharge hopper; support legs are fixedly connected to the bottom of the rotating shell; one of the rotating rollers is driven by a motor; The container includes two baffles in the transmission direction and a first filter in the front-to-back direction; the two baffles on the container in the downward position are inverted octagonal; the edges of the baffles away from the corresponding weighing plates are elastically slidably connected to extension plates; the extension plates are adapted to the width of the front and rear inner walls of the rotary cavity; an exhaust groove with a second filter is provided through the inner wall of the rotary cavity facing upward; the length of the exhaust groove in the left-to-right direction is less than the distance between the two container containers that are far apart when the container is in the downward position. The rotating shell has movable grooves on its front and rear sides; movable plates are elastically and slidingly connected to the movable grooves; one rotating roller passes through the central rod; the central rod is fixedly connected to the output shaft of the motor; the central rod passes through the movable plate in a movable seal; a first inclined sleeve and a second inclined sleeve are movably connected to the outer wall of the central rod; the first inclined sleeve is fixedly connected to the movable plate, and the second inclined sleeve is connected to the outer wall of the central rod, with the first and second inclined sleeves arranged at an angle close to each other; the movable grooves are connected to the rotating cavity through a one-way air outlet; a one-way air inlet is provided through the movable plate. The second oblique sleeve is provided with a threaded hole for a bolt along the radial direction; the bolt is able to contact the outer wall of the central bar; The two movable plates, one in front and one behind, are arranged in opposite directions within their respective movable slots; the one-way vent is located near the lower part of the container cover. The first filter screen is an elastic filter cloth.

2. The intelligent testing equipment for coal quality testing according to claim 1, characterized in that: The inner wall of the container is fixedly connected to a spectral detection probe, a radiation detection probe, and a visual detection probe.

3. The intelligent testing equipment for coal quality testing according to claim 1, characterized in that: A triangular strip is fixed to the bottom wall of the rotary cavity; the triangular strip includes an inclined surface on the left and a vertical surface on the right; the weighing plate moving from right to left is in contact with the support block, and the weighing plate moving from left to right is out of contact with the support block.

4. The intelligent testing equipment for coal quality testing according to claim 1, characterized in that: The one-way vent is located within the length of the exhaust groove; the two containers placed opposite each other are offset from the one-way vent in the left-right direction.

Images