Rapid crushing and sample preparation device for coal ash content on-line detection system
By designing a rapid crushing and sampling device for the coal ash online detection system, the problems of cumbersome sampling process, uneven samples and contamination in the existing technology are solved, and automated, accurate sampling and efficient detection are achieved.
Patent Information
- Application Number
- CN202510781879.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2025-09-30
AI Technical Summary
The existing coal sampling process is cumbersome, difficult to accurately prepare samples periodically, difficult to ensure sample uniformity, and unable to avoid cross-contamination between samples from different batches, resulting in distorted test results and low efficiency.
A rapid crushing and sampling device for an online coal ash detection system was designed. It includes a rotating drum, a crushing ring, a material guide device, an isolation device, and a magnetic ring. By automatically sampling, crushing, mixing, removing iron, and isolating different batches of samples, accurate sample preparation and sample uniformity can be achieved to avoid contamination.
It achieves precise periodic sample preparation, good sample uniformity, avoids contamination of samples from different batches, improves detection efficiency, and ensures the accuracy of test results.
Smart Images
Figure CN120721456A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of coal detection, in particular to a rapid crushing and sampling device for an online coal ash detection system. Background Art
[0002] The percentage of the non-combustible part of coal to the total mass of coal is called coal ash. The level of coal ash can reflect the quality of coal. Both coal production enterprises and coal users need to judge the quality of coal to formulate corresponding sales and usage plans.
[0003] Traditional coal companies primarily use the ashing method to measure coal ash content. This involves completely burning the coal in a high-temperature environment and then weighing the proportion of incombustible matter. However, this method is time-consuming and has significant detection lags, making it difficult to quickly adjust corresponding production indicators during coal production. Consequently, online detection methods based on X-rays and gamma rays have gradually been developed. However, these online detection methods place certain demands on sample particle size, mixing uniformity, and other aspects, necessitating higher standards for sample preparation. Currently, this type of sample preparation is primarily performed manually using a crusher, followed by mixing and iron removal. This process requires the coordination of multiple devices and the cleaning of residual materials from the process. Therefore, the sample preparation process still relies on manual collaboration, making it impossible to achieve accurate periodic sampling and rapid sample preparation. It is also difficult to avoid detection lags and contamination distortion between different batches of samples.
[0004] Therefore, if a new type of crushing and sampling equipment can be invented that can automatically prepare samples periodically, automatically mix samples from the same batch, and separate samples from different batches, it will be possible to solve the problems of the existing coal sampling process being cumbersome, difficult to accurately prepare samples periodically, difficult to ensure sample uniformity, and unable to avoid mutual contamination of samples from different batches. It can effectively avoid distortion of sample test results and improve detection efficiency. Summary of the Invention
[0005] The purpose of the present invention is to solve the problems of the existing coal sampling process being cumbersome, difficulty in accurate periodic sampling, difficulty in ensuring sample uniformity, and inability to avoid mutual contamination of samples from different batches. The present application provides a rapid crushing and sampling device for an online coal ash detection system, which can effectively avoid distortion of sample detection results and improve detection efficiency.
[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a rapid crushing and sampling device for an online coal ash detection system, comprising: A frame, on which a combined processing device is provided, comprising a drum rotatably mounted in the frame, a crushing ring being provided on the outer side of the drum, a conical cavity being integrally formed inside the drum, a conical feed pipe being connected to the front end of the conical cavity and coaxial with the drum being fixed to the front end of the drum, and a discharge cavity being formed at the rear end of the conical cavity, a magnetic ring for removing iron from the sample being installed on the frame at a position corresponding to the discharge cavity, a feed port for feeding the crushing ring being provided on the top of the frame, and a crushing mating protrusion being installed on the frame for cooperating with the rotating crushing ring to crush the material; The material guiding device includes a material guiding cylinder installed on the frame, and a material guiding collecting chamber connected to the material guiding cylinder is installed in the frame, a conveying auger for conveying materials is rotatably installed in the material guiding cylinder, and a material guiding pipe for conveying materials into the conical feed pipe is installed at the end of the material guiding cylinder, and the material guiding pipe is rotatably installed with the conical feed pipe.
[0007] Preferably, a main motor and a speed increaser are fixedly mounted on the frame, and the output end of the main motor drives the input end of the speed increaser, a power gear is rotatably mounted on the frame, and the output end of the speed increaser is used to drive the power gear to rotate, the power gear drives the conveying auger to rotate through a belt, and a main gear meshing with the power gear is fixedly mounted on the conical feed pipe, and the power gear is used to drive the rotating drum to rotate.
[0008] Preferably, the frame is provided with a loading rack for connecting to an external conveyor belt, and the loading rack is provided with a feeding device, the feeding device includes a rotating rack rotatably mounted on the frame, the rotating rack is provided with a collecting trough, and the collecting trough is used to transfer the coal located on the loading rack to the feed port, the frame is provided with a reducer, the main gear is meshed with the power input end of the reducer, and the power output end of the reducer is used to drive the rotating rack to rotate.
[0009] The frame is provided with an isolation device inserted into the conical cavity, and the isolation device includes an outer sealing plate fixed to the frame and used for sealing the end of the discharge cavity, a first central axis coaxial with the conical feed pipe is fixedly installed on the outer sealing plate, a first isolation frame for dividing the front end of the conical cavity into a first mixing cavity and a second mixing cavity is fixedly installed on the first central axis, and a second isolation frame for separating the second mixing cavity and the discharge cavity is fixedly installed on the first central axis, a first feed hole for connecting the first mixing cavity and the second mixing cavity is opened on the first isolation frame, and a second feed hole for connecting the second mixing cavity and the discharge cavity is opened on the second isolation frame.
[0010] Preferably, at least two supporting plates for pushing materials are fixedly installed in a circular array on the inner walls of the first mixing chamber and the second mixing chamber, and the height of the supporting plates is not less than two centimeters.
[0011] Preferably, a door closing control device is provided in the isolation device, and the door closing control device includes a second central shaft rotatably installed with the first central shaft, and a second closing plate rotatably installed in the first isolation frame is fixed on the second central shaft, the second closing plate is used to close the first feeding hole, and the second closing plate is provided with a second discharge hole for connecting the first mixing chamber and the second mixing chamber, the second central shaft is fixed with a first closing plate rotatably installed in the second isolation frame, and the first closing plate is used to close the second feeding hole, and the first closing plate is provided with a first discharge hole for connecting the second mixing chamber and the discharge chamber, the first feeding hole and the second feeding hole are both opened at a position close to the bottom of the conical cavity, and the first discharge hole and the second discharge hole are arranged in a symmetrical position with the second central shaft as the axis of symmetry, so that the first feeding hole and the second feeding hole cannot be opened at the same time, and the second central shaft is connected to the rotating frame by a belt and rotates synchronously.
[0012] Preferably, the frame is provided with a discharge device at the end of the corresponding discharge cavity, and the discharge device includes a material receiving shell fixedly mounted on the frame, and an arc-shaped material guide trough for collecting the material discharged from the discharge cavity is provided in the material receiving shell, and the middle part of the arc-shaped material guide trough is connected to the discharge trough, and the bottom of the material receiving shell is provided with an end discharge pipe for discharging the material in the discharge trough.
[0013] Preferably, an outer gear ring is coaxially fixed to the rear end of the rotating drum, and a driven wheel meshing with the outer gear ring is rotatably mounted on the frame, a power shaft is rotatably mounted on the discharge trough, and the power shaft and the driven wheel are connected by a belt, a collision plate is installed in the discharge trough, and a hammer for hitting the collision plate is connected to the power shaft by a flexible rope.
[0014] Preferably, the magnetic ring is formed by assembling at least three electromagnet units arranged in a ring shape, and the magnetic force provided by the electromagnet units located on the magnetic ring is weakened sequentially from bottom to top.
[0015] Preferably, a collecting device is provided in the discharge chamber, and the collecting device includes a collection box fixedly mounted on the frame and in contact with the inner wall of the discharge chamber, an inclined discharge pipe is provided at the bottom of the collection box, and the collection box is used to collect ferromagnetic materials on the inner wall of the discharge chamber and discharge them through the inclined discharge pipe, the magnetic ring does not have an electromagnet unit at the top of the corresponding collection box, one side of the collection box is provided with a feeding trough for facilitating the ferromagnetic materials on the inner wall of the discharge chamber to enter the collection box, and the other side of the collection box is provided with a scraper for scraping the ferromagnetic materials on the discharge chamber into the inside of the collection box.
[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The feeding device can be used for periodic sampling and the crushing ring can be used for sample crushing, so as to carry out accurate periodic sample preparation, avoiding the detection lag problem caused by inaccurate sample preparation.
[0017] 2. The conical cavity can be used to evenly mix the sample material and remove the ferromagnetic material in the sample through the magnetic ring, thus saving the process of using other iron removal equipment for iron removal.
[0018] 3. Isolation devices and closed-door control devices can be used to isolate different batches of materials to avoid cross-contamination of samples between different batches.
[0019] 4. The material guide device, conical cavity and discharge device can be used to quickly discharge the material at the corresponding position, thereby avoiding mutual contamination between different batches of samples caused by material retention. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a side view of the structure of the present invention; Figure 3 A cross-sectional view of the structure of the present invention along the front-to-back direction; Figure 4 It is a cross-sectional view of the structure of the present invention along the left and right directions; Figure 5 It is a structural schematic diagram of the rack in the present invention; Figure 6 Schematic diagram of the structure of the door closing control device of the present invention; Figure 7 Schematic diagram of the structure of the magnetic ring in the present invention; Figure 8 Schematic diagram of the structure of the collecting device in the present invention; Figure 9 Schematic diagram of the structure of the isolation device in the present invention; Figure 10 It is a structural schematic diagram of the combined processing device in the present invention; Figure 11 It is a structural schematic diagram of the discharge device in the present invention.
[0021] In the figure: 1. Frame; 2. Isolation device; 201. First isolation frame; 202. First feeding hole; 203. First central axis; 204. Second isolation frame; 205. Second feeding hole; 206. External sealing plate; 3. Combined processing device; 301. Rotating drum; 302. External gear ring; 303. First mixing chamber; 304. Support plate; 305. Second mixing chamber; 306. Discharge chamber; 307. Crushing ring; 308. Conical feed pipe; 4. Material guiding device; 401. Material guiding cylinder; 402. Conveying auger; 403. Material guiding pipe; 5. Collecting device; 501. Feed trough; 502. Scraper; 503. Collection box; 504. Inclined discharge pipe; 6. Door closing control device ;601, second center axis; 602, first discharge hole; 603, first closing plate; 604, second closing plate; 605, second discharge hole; 7, discharge device; 701, material receiving shell; 702, arc-shaped guide trough; 703, swing hammer; 704, collision plate; 705, discharge trough; 706, power shaft; 707, end discharge pipe; 708, driven wheel; 8, feeding device; 801, collection trough; 802, rotating frame; 9, electromagnet unit; 10, magnetic ring; 11, loading rack; 12, power gear; 13, speed increaser; 14, main motor; 15, speed reducer; 16, main gear; 17, feed port; 18, crushing matching protrusion; 19, material guide and collection chamber. DETAILED DESCRIPTION
[0022] In order to clearly and completely describe the purpose and technical solutions of the present invention and to more clearly and clearly explain its advantages, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all the embodiments, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] Example 1: Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 9 and Figure 10The present invention provides a rapid crushing and sampling device for an online detection system of coal ash, comprising a frame 1 and a material guiding device 4. A combined processing device 3 is provided on the frame 1, and the combined processing device 3 comprises a rotating drum 301 rotatably installed in the frame 1. The rotating drum 301 can be horizontally arranged or tilted as needed, and a crushing ring 307 is provided on the outside of the rotating drum 301. A conical cavity is integrally formed inside the rotating drum 301, and a conical feed pipe 308 is fixed at the front end of the rotating drum 301, which is connected to the front end of the conical cavity and coaxial with the rotating drum 301, and a discharge cavity 306 is formed at the rear end of the conical cavity. A magnetic ring 10 for removing iron from the sample is installed on the frame 1 at a position corresponding to the discharge cavity 306, a feed port 17 for feeding the crushing ring 307 is provided on the top of the frame 1, and a crushing matching protrusion 18 for cooperating with the rotating crushing ring 307 to crush the material is installed on the frame 1. The material is fed into the frame 1 from above the crushing ring 307, and then the material is squeezed into the bottom of the crushing mating protrusion 18 under the rotation of the crushing ring 307, so that the material is crushed. The crushing ring 307 itself is made of high-strength alloy, and can use its own hardness to cooperate with the rotation of the drum 301 to exert extrusion force on the material, thereby achieving crushing of the material together with the crushing mating protrusion 18. The outer surface of the crushing ring 307 can also be evenly provided with concave holes with a depth of less than 1 mm, thereby increasing the friction with the material, so that the material can be better pressed between the crushing ring 307 and the crushing mating protrusion 18 to achieve crushing.
[0024] See also Figures 1 to 5The material guiding device 4 includes a material guiding cylinder 401 installed on the frame 1, and a material guiding collecting chamber 19 connected to the material guiding cylinder 401 is installed in the frame 1, a conveying auger 402 for conveying material is rotatably installed in the material guiding cylinder 401, and a material guiding pipe 403 for conveying material to the conical feed pipe 308 is installed at the end of the material guiding cylinder 401, and the material guiding pipe 403 is rotatably installed with the conical feed pipe 308. The material squeezed and crushed by the crushing ring 307 will be collected into the material guide collection chamber 19, and then sent into the conical feed pipe 308 through the guide pipe 403 under the transportation of the conveying auger 402, and then sent into the conical cavity through the conical feed pipe 308. Since the drum 301 will continue to rotate, the material will gradually move toward the rear end of the conical cavity in the conical cavity and enter the discharge cavity 306. In the process of moving into the discharge cavity 306, the material will be mixed with each other under the rotation of the drum 301, thereby improving the uniformity of the material. The material in the discharge cavity 306 can remove ferromagnetic substances under the magnetic adsorption of the magnetic ring 10, and then the material will be discharged from the rear end of the discharge cavity 306. The position of the guide barrel 401 is higher than the conical feed tube 308, so that the material in the guide barrel 401 can directly enter the conical feed tube 308 along the guide tube 403 under the action of gravity, and the material entering the conical feed tube 308 will be thrown into the conical cavity under the action of the centrifugal force provided by the rotation of the conical feed tube 308, thereby effectively avoiding the retention of material and preventing different batches of material from being contaminated by the retained material.
[0025] See also Figures 1 to 5 A main motor 14 and a speed increaser 13 are fixedly mounted on the frame 1, and the output end of the main motor 14 drives the input end of the speed increaser 13. A power gear 12 is rotatably mounted on the frame 1, and the output end of the speed increaser 13 is used to drive the power gear 12 to rotate. The power gear 12 drives the conveying auger 402 to rotate through a belt, and a main gear 16 meshing with the power gear 12 is fixedly mounted on the conical feed pipe 308. The power gear 12 is used to drive the rotating drum 301 to rotate. The main motor 14 can simultaneously drive the conveying auger 402 and the rotating drum 301 to rotate, so that the crushing and feeding processes can be carried out synchronously.
[0026] See also Figures 1 to 5The frame 1 is provided with a loading rack 11 for connecting to an external conveyor belt, and a feeding device 8 is provided on the loading rack 11. The feeding device 8 includes a rotating rack 802 rotatably mounted on the frame 1, and a collecting trough 801 is provided on the rotating rack 802. The collecting trough 801 is used to transfer the coal on the loading rack 11 to the feed port 17. The frame 1 is provided with a reducer 15. The main gear 16 is meshed and connected with the power input end of the reducer 15, and the power output end of the reducer 15 is used to drive the rotating rack 802 to rotate. The loading rack 11 is connected to the external coal conveyor belt, so that the external coal needs to pass through the loading rack 11 during transportation. Driven by the main motor 14, the feeding device 8 can use the collecting trough 801 to periodically sample the material on the loading rack 11.
[0027] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 9 and Figure 10 , an isolation device 2 is provided on the frame 1 and is inserted into the conical cavity. The isolation device 2 includes an outer sealing plate 206 fixed to the frame 1 and used to seal the end of the discharge cavity 306. A first central axis 203 coaxial with the conical feed pipe 308 is fixedly installed on the outer sealing plate 206. A first isolation frame 201 for dividing the front end of the conical cavity into a first mixing cavity 303 and a second mixing cavity 305 is fixedly installed on the first central axis 203, and a second isolation frame 204 for separating the second mixing cavity 305 and the discharge cavity 306 is fixedly installed on the first central axis 203. A first material passage hole 202 for connecting the first mixing cavity 303 and the second mixing cavity 305 is opened on the first isolation frame 201, and a material passage hole 202 for connecting the second mixing cavity 305 is opened on the second isolation frame 204. and the second feeding hole 205 of the discharge chamber 306, at least two supporting plates 304 for pushing the material are fixedly installed in a circular array on the inner walls of the first mixing chamber 303 and the second mixing chamber 305, and the height of the supporting plates 304 is not less than two centimeters. Through the isolation of the isolation device 2, the material entering the conical feed pipe 308 can only pass through the first mixing chamber 303 and the second mixing chamber 305 in turn and then enter the discharge chamber 306, thereby avoiding the material from floating directly from the conical feed pipe 308 to the discharge chamber 306, and allowing the material to be lifted by the supporting plates 304 in the first mixing chamber 303 and the second mixing chamber 305 to a position close to the top of the conical cavity and then scattered back to the bottom of the conical cavity, so that the material is mixed more evenly.
[0028] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 9 and Figure 10 A door closing control device 6 is provided in the isolation device 2. The door closing control device 6 includes a second central shaft 601 coaxially mounted and rotatably installed with the first central shaft 203, and a second closing plate 604 rotatably installed in the first isolation frame 201 is fixed on the second central shaft 601. The second closing plate 604 is used to close the first feed hole 202, and a second discharge hole 605 for connecting the first mixing chamber 303 and the second mixing chamber 305 is opened on the second closing plate 604. The first closing plate 603 rotatably installed in the second isolation frame 204 is fixed on the second central shaft 601, and The first closing plate 603 is used to close the second feed hole 205. The first closing plate 603 is provided with a first discharge hole 602 for connecting the second mixing chamber 305 and the discharge chamber 306. The first feed hole 202 and the second feed hole 205 are both opened near the bottom of the conical cavity, and the first discharge hole 602 and the second discharge hole 605 are arranged in alignment with the second central axis 601 as the symmetry axis, so that the first feed hole 202 and the second feed hole 205 cannot be opened at the same time. The second central axis 601 is connected to the rotating frame 802 by a belt and rotates synchronously. When the collecting trough 801 rotates to face upward, the second discharge hole 605 will rotate to a position aligned with the first feed hole 202, so that the material in the first mixing chamber 303 can enter the second mixing chamber 305, and the first closing plate 603 closes the second feed hole 205, so that the material in the second mixing chamber 305 cannot enter the discharge chamber 306 and can only continue to be mixed in the second mixing chamber 305. At the same time, since there is no more feed in the discharge chamber 306, no discharge is performed. When the collecting trough 801 rotates toward the feed port 17, the second closing plate 604 will close the first feed hole 202, so that the material just crushed by the crushing ring 307 can only be mixed in the first mixing chamber 303, and the first discharge hole 602 rotates to a position aligned with the second feed hole 205. At this time, the material of the previous batch of samples in the second mixing chamber 305 will be able to enter the discharge chamber 306 and be discharged after magnetic separation, thereby isolating different batches of materials.
[0029] The crushing sample preparation device designed in this embodiment can utilize the drive of the main motor 14 to simultaneously drive the rotating drum 301, the conveying auger 402, the rotating frame 802 and the closing control device 6 to rotate, so that the material can be periodically fed by the feeding device 8 into the space between the crushing ring 307 and the crushing matching protrusion 18 to be crushed, and then transported by the conveying auger 402 to the first mixing chamber 303 and the second mixing chamber 305 to be mixed evenly, and then sent to the discharge chamber 306 to remove the ferromagnetic material and be discharged. In addition, in the above process, different batches of samples can be synchronously isolated through the closing control device 6, thereby realizing periodic sampling at the same time. , mixing the same batch evenly after crushing, discharging different batches separately, removing ferromagnetic materials in the sample, and intermittent discharging functions, and the cycle of the entire operation process can be adjusted by adjusting the speed of the main motor 14, so it is easy to use and the sample preparation effect is better, and the overall structure of the device is compact and occupies a small area. During use, periodic sampling can be performed without manual intervention, and the setting of the conveying auger 402 and the conical cavity can effectively avoid the retention of materials in the corresponding position, thereby avoiding the mutual contamination of materials from different batches and ensuring the effectiveness of the sample, so it can meet the sampling requirements of the existing coal ash online detection system. Thereby, it can solve the problems of the existing coal sampling process being cumbersome, difficult to accurately prepare samples periodically, difficult to ensure the uniformity of the sample, and unable to avoid the mutual contamination of samples from different batches, and can effectively avoid the distortion of sample detection results and improve detection efficiency. Example 2: Please refer to Figure 3 、 Figure 7 and Figure 8On the basis of the first embodiment, the magnetic ring 10 is formed by assembling at least three electromagnet units 9 arranged in a ring shape, and the magnetic force provided by the electromagnet units 9 on the magnetic ring 10 is weakened from bottom to top. A collecting device 5 is provided in the discharge chamber 306, and the collecting device 5 includes a collection box 503 fixedly mounted on the frame 1 and in contact with the inner wall of the discharge chamber 306, an inclined discharge pipe 504 is provided at the bottom of the collection box 503, and the collection box 503 is used to collect the ferromagnetic material on the inner wall of the discharge chamber 306 and discharge it through the inclined discharge pipe 504, the magnetic ring 10 is not provided with an electromagnet unit 9 at the top of the corresponding collection box 503, a feeding trough 501 is provided on one side of the collection box 503 for facilitating the ferromagnetic material on the inner wall of the discharge chamber 306 to enter the collection box 503, and a scraper 502 is provided on the other side of the collection box 503 for scraping the ferromagnetic material on the discharge chamber 306 to the inside of the collection box 503. The ferromagnetic material in the discharge chamber 306 will be attracted by the magnetic force of the magnetic ring 10, and then rotate along with the inner wall of the discharge chamber 306. When the ferromagnetic material moves to the top of the collection box 503, the magnetic force disappears, and the ferromagnetic material will be discharged into the collection box 503 under the force of gravity and the scraping of the scraper 502, and then discharged through the inclined discharge pipe 504, thereby effectively removing the ferromagnetic material in the sample material and improving the sample quality. This further solves the problems of the existing coal sampling process being cumbersome, difficult to accurately and periodically prepare samples, difficult to ensure sample uniformity, and unable to avoid mutual contamination of samples from different batches. It can effectively avoid distortion of sample detection results and improve detection efficiency. Example 3: Please refer to Figure 2 、 Figure 3 and Figure 11 Based on the second embodiment, the frame 1 is provided with a discharge device 7 at the end corresponding to the discharge chamber 306. The discharge device 7 includes a material receiving housing 701 fixedly mounted on the frame 1. The material receiving housing 701 is provided with an arc-shaped guide trough 702 for collecting material discharged from the discharge chamber 306. The middle of the arc-shaped guide trough 702 is connected to the discharge trough 705. The bottom of the material receiving housing 701 is provided with a terminal discharge pipe 707 for discharging the material in the discharge trough 705. Under the dual effects of the rolling of the drum 301 and gravity, the material in the conical cavity is gradually thrown toward the rear end of the discharge chamber 306, thereby entering the arc-shaped guide trough 702, then passing through the arc-shaped guide trough 702 into the discharge trough 705, and finally discharged through the terminal discharge pipe 707. This achieves centralized collection and discharge of sample materials, facilitating the storage and use of samples. It further solves the problems of the existing coal sampling process being cumbersome, difficulty in accurate periodic sampling, difficulty in ensuring sample uniformity, and inability to avoid mutual contamination of samples from different batches. It can effectively avoid distortion of sample test results and improve detection efficiency.
[0030] Example 4: Please refer to Figure 2 、 Figure 3 and Figure 11 Based on the third embodiment, an outer ring gear 302 is coaxially fixed to the rear end of the rotating drum 301, and a driven pulley 708 is rotatably mounted on the frame 1 and meshes with the outer ring gear 302. A power shaft 706 is rotatably mounted on the discharge chute 705, and the power shaft 706 and the driven pulley 708 are connected by a belt. A collision plate 704 is installed in the discharge chute 705, and a hammer 703 is connected to the power shaft 706 by a flexible rope for striking the collision plate 704. The power shaft 706 drives the hammer 703 to periodically strike the collision plate 704, thereby causing the collision plate 704 to vibrate the entire discharge device 7, allowing the sample material in the arc-shaped guide chute 702 to quickly enter the discharge chute 705 and be discharged through the terminal discharge pipe 707, thereby preventing the previous batch of material retained in the arc-shaped guide chute 702 from contaminating the next batch of material. It further solves the problems of the existing coal sampling process being cumbersome, difficulty in accurate periodic sampling, difficulty in ensuring sample uniformity, and inability to avoid mutual contamination of samples from different batches. It can effectively avoid distortion of sample test results and improve detection efficiency.
[0031] Example 5: Based on Example 4, the present invention further provides a method for using a rapid crushing and sampling device for an online coal ash detection system, comprising the following steps: Step 1: When in use, the operator only needs to set the rotation speed of the main motor 14 according to the required sampling period to enable the equipment to enter the sample preparation operation. During the sample preparation process, the feeding device 8 will periodically feed the material passing through the loading rack 11 into the feed port 17.
[0032] Step 2: The material in the feed port 17 will enter between the crushing ring 307 and the crushing mating protrusion 18 under the action of the friction force provided by the rotation of the crushing ring 307, so that the material is squeezed and crushed and enters the material guide collection chamber 19. The material is then transported to the conical cavity by the conveying auger 402, and then the material can be orderly mixed through the first mixing chamber 303 and the second mixing chamber 305. During the mixing process, the material is gradually thrown into the discharge chamber 306 to remove the ferromagnetic material.
[0033] Step 3: After the ferromagnetic substances are removed from the materials entering the discharge chamber 306 , they will continue to be thrown into the arc-shaped guide trough 702 , and then uniformly discharged under the guidance of the terminal discharge pipe 707 .
[0034] Although the above describes the illustrative specific implementation methods of the present application so that those skilled in the art can understand the present application, the present application is not limited to the scope of the specific implementation methods. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations based on the concept of the present application are protected.
Claims
1. A rapid crushing and sampling device for an online coal ash detection system, characterized in that: include: A frame (1), wherein a combined processing device (3) is provided on the frame (1), wherein the combined processing device (3) comprises a drum (301) rotatably mounted in the frame (1), and a crushing ring (307) is provided on the outer side of the drum (301), a conical cavity is integrally formed inside the drum (301), a conical feed pipe (308) is fixed at the front end of the drum (301) and is connected to the front end of the conical cavity and is coaxial with the drum (301), and a discharge cavity (306) is formed at the rear end of the conical cavity, and a magnetic ring (10) for removing iron from the sample is installed on the frame (1) at a position corresponding to the discharge cavity (306), a feed port (17) for feeding the crushing ring (307) is provided on the top of the frame (1), and a crushing mating protrusion (18) for cooperating with the rotating crushing ring (307) to crush the material is installed on the frame (1); A material guiding device (4) includes a material guiding cylinder (401) mounted on a frame (1), a material guiding collecting chamber (19) in communication with the material guiding cylinder (401) being mounted in the frame (1), a conveying auger (402) for conveying material being rotatably mounted in the material guiding cylinder (401), and a material guiding pipe (403) for conveying material into a conical feed pipe (308) being mounted at the end of the material guiding cylinder (401), the material guiding pipe (403) being rotatably mounted on the conical feed pipe (308).
2. The rapid crushing and sampling device for the online coal ash detection system according to claim 1 is characterized in that: A main motor (14) and a speed increaser (13) are fixedly mounted on the frame (1), and the output end of the main motor (14) drives the input end of the speed increaser (13). A power gear (12) is rotatably mounted on the frame (1), and the output end of the speed increaser (13) is used to drive the power gear (12) to rotate. The power gear (12) drives the conveying auger (402) to rotate via a belt, and a main gear (16) meshing with the power gear (12) is fixedly mounted on the conical feed pipe (308). The power gear (12) is used to drive the rotating drum (301) to rotate.
3. The rapid crushing and sampling device for the online coal ash detection system according to claim 2 is characterized in that: The frame (1) is provided with a loading rack (11) for connecting to an external conveyor belt, and the loading rack (11) is provided with a feeding device (8), the feeding device (8) comprising a rotating rack (802) rotatably mounted on the frame (1), a collecting trough (801) being provided on the rotating rack (802), and the collecting trough (801) being used to transfer the coal on the loading rack (11) to the feed port (17), a reducer (15) being installed on the frame (1), the main gear (16) being meshedly connected with the power input end of the reducer (15), and the power output end of the reducer (15) being used to drive the rotating rack (802) to rotate.
4. The rapid crushing and sampling device for the online coal ash detection system according to claim 2 is characterized in that: The frame (1) is provided with an isolation device (2) inserted into the conical cavity, the isolation device (2) comprising an outer sealing plate (206) fixed to the frame (1) and used to seal the end of the discharge cavity (306), a first central axis (203) coaxial with the conical feed pipe (308) is fixedly mounted on the outer sealing plate (206), and a second central axis (203) for dividing the front end of the conical cavity into a first mixing cavity (303) and a second mixing cavity (305) is fixedly mounted on the first central axis (203). An isolation frame (201) is provided, and a second isolation frame (204) is fixedly mounted on the first central axis (203) for separating the second mixing chamber (305) and the discharge chamber (306); the first isolation frame (201) is provided with a first feed hole (202) for connecting the first mixing chamber (303) and the second mixing chamber (305); and the second isolation frame (204) is provided with a second feed hole (205) for connecting the second mixing chamber (305) and the discharge chamber (306).
5. The rapid crushing and sampling device for the online coal ash detection system according to claim 4 is characterized in that: At least two supporting plates (304) for pushing materials are fixedly mounted in a circular array on the inner walls of the first mixing chamber (303) and the second mixing chamber (305), and the height of the supporting plates (304) is not less than two centimeters.
6. The rapid crushing and sampling device for the online coal ash detection system according to claim 5, characterized in that: The isolating device (2) is provided with a door closing control device (6), the door closing control device (6) comprising a second central shaft (601) coaxially mounted and rotatably installed with the first central shaft (203), and a second closing plate (604) rotatably mounted in the first isolating frame (201) is fixed on the second central shaft (601), the second closing plate (604) is used to close the first feeding hole (202), and a second discharge hole (605) for connecting the first mixing chamber (303) and the second mixing chamber (305) is opened on the second closing plate (604), the first closing plate (604) rotatably mounted in the second isolating frame (204) is fixed on the second central shaft (601), and the first closing plate (604) rotatably mounted in the second isolating frame (204) is fixed on the second central shaft (601). 3), and the first closing plate (603) is used to close the second feeding hole (205), the first closing plate (603) is provided with a first discharge hole (602) for connecting the second mixing chamber (305) and the discharge chamber (306), the first feeding hole (202) and the second feeding hole (205) are both opened at a position close to the bottom of the conical cavity, and the first discharge hole (602) and the second discharge hole (605) are arranged in a symmetrical position with the second central axis (601) as the axis of symmetry, so that the first feeding hole (202) and the second feeding hole (205) cannot be opened at the same time, and the second central axis (601) is connected to the rotating frame (802) by a belt and rotates synchronously.
7. The rapid crushing and sampling device for an online coal ash detection system according to claim 1, characterized in that: The frame (1) is provided with a discharge device (7) at the end corresponding to the discharge cavity (306), and the discharge device (7) comprises a material receiving shell (701) fixedly mounted on the frame (1), and an arc-shaped material guide trough (702) for collecting material discharged from the discharge cavity (306) is provided in the material receiving shell (701), and the middle of the arc-shaped material guide trough (702) is connected to the discharge trough (705), and a terminal discharge pipe (707) for discharging material in the discharge trough (705) is installed at the bottom of the material receiving shell (701).
8. The rapid crushing and sampling device for the online coal ash detection system according to claim 7, characterized in that: An outer gear ring (302) is coaxially fixed to the rear end of the rotating drum (301), and a driven wheel (708) meshing with the outer gear ring (302) is rotatably mounted on the frame (1). A power shaft (706) is rotatably mounted on the discharge trough (705), and the power shaft (706) and the driven wheel (708) are connected via a belt. A collision plate (704) is mounted in the discharge trough (705), and a swing hammer (703) for striking the collision plate (704) is connected to the power shaft (706) via a flexible rope.
9. The rapid crushing and sampling device for an online coal ash detection system according to claim 1, characterized in that: The magnetic ring (10) is formed by assembling at least three electromagnet units (9) arranged in a ring shape, and the magnetic force provided by the electromagnet units (9) located on the magnetic ring (10) is weakened from bottom to top.
10. The rapid crushing and sampling device for an online coal ash detection system according to claim 1, characterized in that: The discharge chamber (306) is provided with a collecting device (5), and the collecting device (5) includes a collecting box (503) fixedly mounted on the frame (1) and in contact with the inner wall of the discharge chamber (306), an inclined discharge pipe (504) is provided at the bottom of the collecting box (503), and the collecting box (503) is used to collect ferromagnetic material located on the inner wall of the discharge chamber (306) and discharge it through the inclined discharge pipe (504), the magnetic ring (10) is not provided with an electromagnet unit (9) at the top of the corresponding collecting box (503), one side of the collecting box (503) is provided with a feeding trough (501) for facilitating the ferromagnetic material located on the inner wall of the discharge chamber (306) to enter the collecting box (503), and the other side of the collecting box (503) is provided with a scraper (502) for scraping the ferromagnetic material located on the discharge chamber (306) into the interior of the collecting box (503).