X-ray ash content detection system

Abstract

The utility model relates to the technical field of ash content detection, in particular to an X-ray ash content detection system which comprises sampling equipment, crushing equipment and ash content detection equipment, the sampling equipment is used for sampling coal samples from a raw coal conveying belt; the crushing equipment is used for crushing the coal sample into a to-be-detected sample with a preset particle size so as to improve the detection precision; the ash content detection equipment comprises a box body and a detection probe, the detection probe is arranged in the box body, a contact surface is arranged at the lower end of the box body, and a first through hole communicating the interior of the box body with the outside is formed in the contact surface; during detection, the contact surface is in contact with the to-be-detected sample and flattens the to-be-detected sample, so that the distance between the detection probe and the to-be-detected sample is constant, the distance between the detection probe and the to-be-detected sample is closer, and when the detection probe detects the ash content of the to-be-detected sample through the first through hole, the detection precision of the detection probe is higher. Through cooperation of the sampling equipment, the crushing equipment and the ash content detection equipment, the ash content of raw coal on the raw coal conveying belt can be detected online in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of coal ash detection, in particular to an X-ray ash detection system. Background Art

[0002] Coal ash content refers to the mass fraction of oxide residue after coal is fully and completely burned at 815°C. Coal ash content is closely related to the calorific value of coal. In order to improve the utilization rate of coal, the ash content of coal must be strictly controlled.

[0003] At present, X-ray detection technology is used for coal ash detection, which uses an emission source to emit X-rays for coal ash detection. In the prior art, the X-ray emission source is generally arranged directly above the coal conveyor belt. Since the coal on the conveyor belt is scattered and the thickness of the coal layer is different, the detection accuracy of the coal ash content is affected. Utility Model Content

[0004] (I) The problem to be solved by the utility model is that the detection accuracy of coal ash content is affected due to the scattered distribution of coal on the conveyor belt and the different thickness of the coal seam.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the embodiment of the utility model provides an X-ray ash detection system, including: a sampling device, a crushing device and an ash detection device;

[0007] The sampling device is used to take coal samples from the raw coal conveyor belt, and the coal samples taken by the sampling device are conveyed to the crushing device;

[0008] The crushing device is used to crush the coal sample into samples to be tested with a preset particle size, and the samples to be tested obtained by the crushing device are transported to the ash content testing device;

[0009] The ash content detection device comprises a box body and a detection probe, wherein the detection probe is arranged in the box body, a contact surface is arranged at the lower end of the box body, and a first through hole connecting the inside of the box body and the outside is opened on the contact surface;

[0010] During detection, the contact surface contacts the sample to be detected and flattens the sample to be detected, so that the distance between the detection probe and the sample to be detected is constant, and the detection probe detects the ash content of the sample to be detected through the first through hole.

[0011] Furthermore, the distance between the detection probe and the sample to be detected is less than or equal to 8 mm.

[0012] Furthermore, a recessed structure is provided on the contact surface, and the first through hole is provided in the recessed structure.

[0013] Furthermore, the ash content detection device also includes a sample conveyor belt;

[0014] The samples to be tested obtained by the crushing equipment are conveyed to the sample conveyor belt, and the box is erected above the sample conveyor belt.

[0015] Furthermore, along the conveying direction of the sample conveyor belt, the discharging end of the crushing device and the box body are sequentially arranged above the sample conveyor belt.

[0016] Furthermore, a shoveling structure is provided at the front end of the contact surface.

[0017] Further, the shoveling structure includes a first baffle and a second baffle;

[0018] The first baffle plate is connected to the second baffle plate, the first baffle plate and the second baffle plate are arranged obliquely in a front-to-rear direction, and / or the first baffle plate and the second baffle plate are arranged obliquely in an up-down direction;

[0019] The box body comprises a first bottom plate, the surface of the first bottom plate facing the sample conveyor belt is the contact surface, and the lower ends of the first baffle plate and the second baffle plate are both connected to the front end of the first bottom plate.

[0020] Furthermore, the particle size of the sample to be tested obtained by crushing with the crushing equipment is less than or equal to 3 mm.

[0021] Further, the crushing equipment includes a primary crushing assembly and a secondary crushing assembly;

[0022] The primary crushing assembly includes a first crushing roller and a crushing plate;

[0023] The first crushing roller is spaced apart from the crushing plate, and a first crushing space is formed between the first crushing roller and the crushing plate;

[0024] The secondary crushing assembly includes a second crushing roller and a third crushing roller;

[0025] The second crushing roller is spaced apart from the third crushing roller, and a second crushing space is formed between the second crushing roller and the third crushing roller;

[0026] The second crushing space is communicated with the first crushing space, and a crushing ratio in the second crushing space is greater than a crushing ratio in the first crushing space.

[0027] Furthermore, the third crushing roller is located below the crushing plate, and the tail end of the crushing plate is located on the side of the central axis of the third crushing roller close to the second crushing roller, the central axis of the second crushing roller is located above the central axis of the third crushing roller, and the highest point of the second crushing roller is located above the tail end of the crushing plate, and the plane where the symmetry axis of the third crushing roller and the second crushing roller is located intersects with the path of the material after it leaves the crushing plate.

[0028] Beneficial effects of the utility model:

[0029] The utility model provides an X-ray ash detection system, comprising: a sampling device, a crushing device and an ash detection device; the sampling device is used to take coal samples from a raw coal conveyor belt, and the coal samples taken by the sampling device are conveyed to the crushing device; the crushing device is used to crush the coal samples into samples to be detected with a preset particle size, and the samples to be detected obtained by the crushing device are conveyed to the ash detection device; the ash detection device comprises a box body and a detection probe, the detection probe is arranged in the box body, the lower end of the box body is provided with a contact surface, and the contact surface is provided with a first through hole connecting the inside of the box body and the outside; during detection, the contact surface contacts with the sample to be detected and flattens the sample to be detected, so that the distance between the detection probe and the sample to be detected is constant, and the detection probe detects the ash content of the sample to be detected through the first through hole.

[0030] Through the cooperation of sampling equipment, crushing equipment and ash content detection equipment, the ash content of raw coal on the raw coal conveyor belt can be detected online in real time. Moreover, after the crushing equipment crushes the coal sample, the detection accuracy of the ash content detection equipment for coal ash content detection can be improved; the detection probe is set in the box, and the contact surface flattens the sample to be detected, which can make the surface of the sample to be detected flat, and can keep the distance between the detection probe and the sample to be detected constant during each detection; and by setting the detection probe close to the contact surface, the distance between the detection probe and the sample to be detected is closer, further improving the detection accuracy of the detection probe for coal ash content detection and improving the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of an X-ray ash content detection system provided by an embodiment of the utility model;

[0033] Figure 2 The ash content detection device provided by the embodiment of the utility model is a three-dimensional Figure 1 ;

[0034] Figure 3 The ash content detection device provided by the embodiment of the utility model is a three-dimensional Figure 2 ;

[0035] Figure 4 The plane of the ash content detection device provided by the embodiment of the utility model Figure 1 ;

[0036] Figure 5 The plane of the ash content detection device provided by the embodiment of the utility model Figure 2 ;

[0037] Figure 6 A three-dimensional diagram of a crushing device provided by an embodiment of the utility model;

[0038] Figure 7 A front view of a crushing device provided by an embodiment of the utility model;

[0039] Figure 8 A cross-sectional view of a crushing device provided by an embodiment of the utility model;

[0040] Fig. 9 A three-dimensional diagram of a primary crushing assembly provided in an embodiment of the utility model;

[0041] Fig.10 A three-dimensional diagram of a secondary crushing assembly provided by an embodiment of the utility model;

[0042] Fig.11 A three-dimensional diagram of a disintegration assembly provided in an embodiment of the utility model.

[0043] Icons: 1- Sampling equipment;

[0044] 2-crushing equipment; 21-primary crushing assembly; 211-first crushing roller; 212-crushing plate; 2121-first crushing part; 2122-second crushing part; 213-first crushing space; 214-first driving member; 216-first sliding bearing; 217-first material blocking member; 2171-material blocking space; 22-secondary crushing assembly; 221-second crushing roller; 222-third crushing roller; 223-second crushing space; 224-second driving member; 226-slideway; 227-first distance adjusting member; 228-second distance adjusting member; 229-second sliding bearing; 23-dispersing assembly; 231-first dispersing member; 2311-first dispersing part; 2312-first dispersing slot; 232-second dispersing member; 2321-second dispersing part; 2322-second dispersing slot; 233-dispersing space;

[0045] 3-ash content detection equipment; 31-housing; 311-first bottom plate; 3111-contact surface; 3112-recessed structure; 3113-first through hole; 3114-second through hole; 312-first baffle plate; 313-second baffle plate; 314-first side plate; 315-second bottom plate; 316-second side plate; 32-support frame; 33-connecting rod; 34-sample conveyor belt. DETAILED DESCRIPTION

[0046] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] like Figures 1 to 11 As shown, an embodiment of the utility model provides an X-ray ash detection system, including: a sampling device 1, a crushing device 2 and an ash detection device 3; the sampling device 1 is used to take a coal sample from a raw coal conveyor belt, and the coal sample taken by the sampling device 1 is conveyed to the crushing device 2; the crushing device 2 is used to crush the coal sample into a sample to be detected with a preset particle size, and the sample to be detected obtained by the crushing device 2 is conveyed to the ash detection device 3, and the ash detection device 3 is used to detect the ash content of the sample to be detected. The ash detection device 3 includes a box body 31 and a detection probe, the detection probe is arranged in the box body 31, and a contact surface 3111 is provided at the lower end of the box body 31, and a first through hole 3113 connecting the inside of the box body 31 and the outside is opened on the contact surface 3111; during detection, the contact surface 3111 contacts the sample to be detected and flattens the sample to be detected, so that the distance between the detection probe and the sample to be detected is constant, and the detection probe detects the ash content of the sample to be detected through the first through hole 3113.

[0048] The X-ray ash detection system provided in this embodiment includes three parts: a sampling device 1, a crushing device 2 and an ash detection device 3. Among them, the sampling device 1 is arranged next to the raw coal conveyor belt for conveying raw coal, and the sampling and crushing device 2 is used to take the raw coal in the raw coal conveyor belt as a coal sample for subsequent ash detection. The coal sample taken by the sampling device 1 will be transported to the crushing device 2, and the crushing device 2 will crush the coal sample taken by the sampling device 1 and obtain a sample to be detected with a preset particle size for ash detection. By crushing the coal sample taken by the sampling device 1 into a sample to be detected with a preset particle size by the crushing device 2, the detection accuracy of the subsequent ash detection device 3 in the detection process can be improved, thereby improving the accuracy of the detection result. The sample to be detected is obtained after the crushing device 2 crushes the coal sample, and the sample to be detected is transported to the ash detection device 3. The ash detection device 3 is used to detect the ash content of the sample to be detected, so that the ash content of the raw coal in the raw coal conveyor belt can be obtained.

[0049] Furthermore, in this embodiment, the sampling device 1 can be arranged above the raw coal conveyor belt through a frame structure to sample the raw coal on the raw coal conveyor belt. The sampling device 1 can use a manipulator to grab the raw coal on the raw coal conveyor belt as a coal sample, or the sampling device 1 can use a sampling spoon to dig the raw coal on the raw coal conveyor belt as a coal sample.

[0050] Optionally, in this embodiment, the X-ray ash detection system further includes a controller, which is electrically connected to the sampling device 1 and can control the sampling frequency of the sampler.

[0051] In this embodiment, the ash content detection device 3 performs real-time online detection of the ash content of the sample to be detected by using X-rays.

[0052] Among them, the ash content detection device 3 includes a box 31 and a detection probe. The detection probe includes an X-ray tube and a detector. The X-ray tube emits X-rays to the coal on the conveyor belt. The X-rays can excite the fluorescent substances in the coal. The detector is used to receive the scattered X-ray fluorescence, so as to obtain the ash content of the coal. The interior of the box 31 is hollow, and the interior of the box 31 is used to accommodate the detection probe and some other electronic equipment, so as to avoid the collision between the detection probe and the sample to be detected during use, and to protect the detection probe to a certain extent. In addition, the detection probe is arranged inside the box 31, which can also prevent the health of the operator from being affected by X-rays. The lower side of the box 31 has a contact surface 3111. During use, the contact surface 3111 is in direct contact with the sample to be detected, which is used to flatten the sample to be detected. In this way, the detection accuracy of the detection probe can be improved, and the accuracy of subsequent detection results can be improved. A first through hole 3113 is opened on the contact surface 3111, and the two ends of the first through hole 3113 are respectively connected to the outside world and the interior of the box 31. When in use, the X-rays emitted by the detection probe can pass through the first through hole 3113 and be emitted to the outside and used to detect the ash content of the sample to be detected.

[0053] The X-ray ash detection system provided in this embodiment can realize real-time online detection of the ash content of raw coal on the raw coal conveyor belt through the cooperation of the sampling device 1, the crushing device 2 and the ash detection device 3. Moreover, after the crushing device 2 crushes the coal sample, the detection accuracy of the ash detection device 3 for coal ash detection can be improved; the detection probe is arranged in the box 31, and the contact surface 3111 flattens the sample to be detected, which can make the surface of the sample to be detected flat, and can keep the distance between the detection probe and the sample to be detected constant during each detection; and by setting the detection probe close to the contact surface 3111, the distance between the detection probe and the sample to be detected is closer, further improving the detection accuracy of the detection probe for coal ash detection, and improving the accuracy of the detection result.

[0054] Compared with the prior art, the X-ray ash detection system provided in this embodiment makes the surface of the sample to be detected flat, the detection probe is closer to the sample to be detected and the distance is constant during each detection, so that the detection probe has higher detection accuracy.

[0055] In this embodiment, preferably, the contact surface 3111 is a smooth plane, that is, there is no protrusion or other structure on the contact surface 3111 that is higher than the contact surface 3111. When in use, the smooth contact surface 3111 can make the scattered samples to be detected on the sample conveyor belt 34 smoother, so that the distance between the detection probe and the samples to be detected on the sample conveyor belt 34 can be kept constant, thereby further improving the detection accuracy of the detection probe and improving the accuracy of the detection result.

[0056] Preferably, in this embodiment, the distance between the detection probe and the sample to be detected is less than or equal to 8 mm, so as to ensure the detection accuracy of the detection probe and the accuracy of subsequent detection results.

[0057] The X-ray ash content detection system provided by the embodiment of the utility model is as follows: Figure 3 and Figure 4 As shown, a recessed structure 3112 is provided on the contact surface 3111 , and the first through hole 3113 is provided in the recessed structure 3112 .

[0058] In this embodiment, a recessed structure 3112 recessed toward the inside of the box body 31 is provided on the contact surface 3111, and the first through hole 3113 is provided in the recessed structure 3112. When in use, a gap is generated between the recessed structure 3112 and the surface of the sample to be detected, thereby preventing the sample to be detected from entering the box body 31 through the first through hole 3113 and damaging the detection probe. The sample to be detected that contacts the contact surface 3111 can be prevented from entering the inside of the box body 31 through the first through hole 3113, thereby playing a certain protective role for the detection probe inside the box body 31.

[0059] Optionally, in this embodiment, the recessed structure 3112 may be a groove, a countersunk hole, or an arc-shaped pit, etc., which is arranged on the contact surface 3111 .

[0060] The X-ray ash content detection system provided by the embodiment of the utility model is as follows: Figure 1 As shown, the ash content detection device 3 also includes a sample conveyor belt 34 ; the sample to be detected obtained by the crushing device 2 is conveyed to the sample conveyor belt 34 , and the box body 31 is erected above the sample conveyor belt 34 .

[0061] In this embodiment, the ash content detection device 3 also includes a sample conveyor belt 34, and the sample to be detected obtained by the crushing device 2 is conveyed to the position of the detection probe through the sample conveyor belt 34. The box 31 is set above the sample conveyor belt 34 and is used to detect the ash content of the sample to be detected on the sample conveyor belt 34 in real time online.

[0062] By arranging the sample conveyor belt 34 to convey the samples to be tested, the conveying efficiency is high, and manual participation is reduced, thereby improving the intelligence level of the system.

[0063] In this embodiment, the smooth contact surface 3111 can make the relative sliding between the contact surface 3111 and the sample to be detected smoother and reduce resistance.

[0064] In the X-ray ash content detection system provided in this embodiment, when in use, the box 31 can push away the samples to be detected on the sample conveyor belt 34 that are higher than the contact surface 3111, and make the contact surface 3111 directly contact the remaining samples to be detected on the sample conveyor belt 34 after being pushed away, so that the purpose of flattening the samples to be detected on the sample conveyor belt 34 through the contact surface 3111 can be achieved. In addition, by arranging the detection probe inside the box 31 close to the contact surface 3111, the distance between the detection probe and the sample to be detected can be shortened while avoiding collision between the detection probe and the sample to be detected, thereby improving the detection accuracy of the detection probe.

[0065] Optionally, in this embodiment, the sample to be detected obtained by the crushing device 2 can also be transferred to the detection probe manually. At this time, the box body 31 can flatten the sample to be detected by lifting.

[0066] Optionally, in this embodiment, a transfer conveyor belt may be provided at the end of the sample conveyor belt 34, and the samples to be tested on the sample conveyor belt 34 are transported back to the raw coal conveyor belt by the transfer conveyor belt to recover the samples to be tested after testing.

[0067] The X-ray ash content detection system provided by the embodiment of the utility model is as follows: Figure 1 As shown, along the conveying direction of the sample conveyor belt 34 , the discharging end of the crushing device 2 and the box body 31 are sequentially arranged above the sample conveyor belt 34 .

[0068] In this embodiment, preferably, the discharge end of the crushing equipment 2 and the box 31 of the ash detection equipment 3 are arranged in sequence above the sample conveyor belt 34. After the coal sample is crushed by the crushing equipment 2, the obtained sample to be detected is directly placed on the sample conveyor belt 34 and conveyed to the box 31 of the ash detection equipment 3, which has a higher processing efficiency.

[0069] In this embodiment, the X-ray ash content detection system includes a first conveying channel and a second conveying channel, wherein the first conveying channel is arranged between the discharge end of the sampling device 1 and the feed end of the crushing device 2. The coal sample taken by the sampling device 1 is conveyed to the crushing device 2 through the first conveying channel. The second conveying channel is arranged between the discharge end of the crushing device 2 and the sample conveying belt 34, and one end of the second conveying channel away from the discharge end of the crushing device 2 is located above the sample conveying belt 34, and the sample to be detected obtained by the crushing device 2 is conveyed to the sample conveying belt 34 through the second conveying channel.

[0070] Optionally, in this embodiment, the first conveying channel and the second conveying channel may be pipes or chutes, which have a simple structure and low cost.

[0071] It can be understood that, in this embodiment, the coal sample taken by the sampling device 1 can also be conveyed to the crushing device 2 via a conveyor belt, and the sample to be tested obtained by the crushing device 2 can also be conveyed to the sample conveyor belt 34 via a conveyor belt.

[0072] The X-ray ash content detection system provided by the embodiment of the utility model is as follows: Figures 3 to 5 As shown, a shoveling structure is provided at the front end of the contact surface 3111.

[0073] Furthermore, in this embodiment, a shovel structure is provided at the front end of the contact surface 3111. By providing the shovel structure at the front end of the contact surface 3111, the shovel structure can reduce the resistance of the box 31 when pushing away the sample to be detected that is higher than the contact surface 3111, so that the sample conveyor belt 34 and the ash detection device 3 can both operate smoothly. At the same time, the shovel structure can also make the sample to be detected that contacts the contact surface 3111 more flat, thereby further improving the detection accuracy of the detection probe.

[0074] Specifically, Figures 3 to 5 As shown, the shoveling structure includes a first baffle plate 312 and a second baffle plate 313; the first baffle plate 312 and the second baffle plate 313 are connected, and the first baffle plate 312 and the second baffle plate 313 are inclined along the front-to-back direction, and / or, the first baffle plate 312 and the second baffle plate 313 are inclined along the up-down direction; the box body 31 includes a first bottom plate 311, and the surface of the first bottom plate 311 facing the sample conveyor belt 34 is a contact surface 3111, and the lower ends of the first baffle plate 312 and the second baffle plate 313 are connected to the front end of the first bottom plate 311.

[0075] In this embodiment, the box body 31 includes a first bottom plate 311, and the surface of the first bottom plate 311 facing the sample conveyor belt 34 is the above-mentioned contact surface 3111. The first baffle plate 312 and the second baffle plate 313 form the above-mentioned shoveling structure. The first baffle plate 312 and the second baffle plate 313 are connected to the front end of the first bottom plate 311, and the right end of the first baffle plate 312 is connected to the left end of the second baffle plate 313. The shoveling structure is formed by the cooperation of the first baffle plate 312 and the second baffle plate 313, and when in use, the sample to be tested on the sample conveyor belt 34 that is higher than the contact surface 3111 can be pushed away.

[0076] In this embodiment, optionally, the first baffle 312 and the second baffle 313 can be a part of the box body 31, or can be set separately from the box body 31. In this embodiment, it is preferred to adopt the setting mode that the first baffle 312 and the second baffle 313 are a part of the box body 31. That is to say, the box body 31 includes two parts. For the convenience of description, the two parts of the box body 31 are respectively the first main body and the second main body. Among them, the first main body is located above the second main body, the first main body includes the second side plate 316, the second top plate and the second bottom plate 315, and the first main body is a square structure; the second main body includes the first baffle 312, the second baffle 313, the first bottom plate 311 and the first side plate 314, and the second main body is a boat-shaped structure. The upper end of the second main body is connected to the second bottom plate 315, and the first main body and the second main body together form the box body 31 with a hollow interior. Optionally, the first baffle 312 and the second baffle 313 can be a flat plate or a special-shaped plate with a certain curvature.

[0077] Furthermore, in order to reduce the resistance of the first baffle 312 and the second baffle 313 when pushing coal, the first baffle 312 and the second baffle 313 are inclined.

[0078] In the first embodiment of the first baffle plate 312 and the second baffle plate 313 , the first baffle plate 312 and the second baffle plate 313 are arranged to be inclined along the front-rear direction.

[0079] In this embodiment, the left end of the first baffle 312 is arranged backward and the right end is arranged forward, and the right end of the second baffle 313 is arranged backward and the left end is arranged forward. In this way, when the first baffle 312 and the second baffle 313 are connected, the first baffle 312 and the second baffle 313 are in a V-shaped structure.

[0080] In the second embodiment of the first baffle plate 312 and the second baffle plate 313 , the first baffle plate 312 and the second baffle plate 313 are inclined in the up-down direction.

[0081] In this embodiment, the first baffle 312 and the second baffle 313 are both arranged with their upper ends facing forward and their lower ends facing backward. Thus, when the first baffle 312 and the second baffle 313 are connected, the first baffle 312 and the second baffle 313 together form an inclined scraper.

[0082] In the third embodiment of the first baffle 312 and the second baffle 313 , the first baffle 312 and the second baffle 313 are tilted in the front-to-back direction, and at the same time, the first baffle 312 and the second baffle 313 are also tilted in the up-down direction.

[0083] In this embodiment, the left end of the first baffle 312 is arranged backward and the right end is arranged forward, and at the same time, the upper end of the first baffle 312 is arranged forward and the lower end is arranged backward; the right end of the second baffle 313 is arranged backward and the left end is arranged forward, and at the same time, the upper end of the second baffle 313 is arranged forward and the lower end is arranged backward, so that when the first baffle 312 and the second baffle 313 are connected, the front end of the second main body presents a boat-shaped structure.

[0084] It should be noted that the front, back, up and down directions are already in Figure 5 As pointed out in the figure, the direction perpendicular to the paper surface is outwards is left, and the direction perpendicular to the paper surface is inwards is right.

[0085] In this embodiment, preferably, the first baffle 312 and the second baffle 313 are preferably arranged in the third arrangement, that is, the first baffle 312 and the second baffle 313 are arranged obliquely along the front-to-back direction, and the first baffle 312 and the second baffle 313 are also arranged obliquely along the up-down direction, so that the resistance of the second main body is minimized, and the smoothing effect on the sample to be tested is better.

[0086] Furthermore, in the present embodiment, a first protective film is further disposed at the first through hole 3113 . The first protective film is a transparent film and may be made of an organic polymer material such as plastic.

[0087] By providing the first protective film at the first through hole 3113 , dust and the like can be prevented from entering the box body 31 , thereby providing a certain degree of protection for the detection probe and some other electronic components inside the box body 31 .

[0088] Furthermore, in this embodiment, the recessed structure 3112 is further provided with a second through hole 3114 spaced apart from the first through hole 3113, and the second through hole 3114 can also connect the inside of the box body 31 with the outside. The second through hole 3114 is provided with a second protective film, and the second protective film is made of the same material as the first protective film. The second through hole 3114 and the second protective film mainly play a protective role.

[0089] Specifically, in this embodiment, a first monitoring component for monitoring whether the second protective film is damaged is provided in the box body 31. When the second protective film at the second through hole 3114 is scratched by the sample to be detected, the first protective film at the first through hole 3113 is also at risk of being scratched. In this way, a second protective film is provided at the second through hole 3114. When the second protective film is scratched, the first monitoring component detects the damage of the second protective film and promptly issues an alarm to remind the operator to shut down the sample conveyor belt 34 in time to avoid the first protective film being scratched by the sample to be detected, thereby causing the sample to be detected to enter the box body 31 and damage the detection probe.

[0090] Optionally, in this embodiment, the first monitoring component may be a camera, which monitors whether the second protective film is damaged by image recognition.

[0091] It can be understood that, in this embodiment, the first monitoring component can also be a rangefinder, which can also achieve the purpose of monitoring whether the second protective film is damaged.

[0092] In this embodiment, as mentioned above, the recessed structure 3112 is a groove. Preferably, the groove is a long strip groove, and the extending direction of the groove is the same as the conveying direction of the sample conveyor belt 34 .

[0093] Preferably, in the online ash detection device provided by the embodiment of the utility model, the thickness of the second protective film is less than the thickness of the first protective film.

[0094] In this embodiment, the thickness of the second protective film is smaller than the thickness of the first protective film, so as to improve the monitoring accuracy.

[0095] Furthermore, in this embodiment, the first monitoring component is electrically connected to the controller mentioned above, and the controller is also electrically connected to the drive motor of the sample conveyor belt 34. When the first monitoring component detects that the second protective film is damaged, the controller immediately controls the drive motor of the sample conveyor belt 34 to stop running.

[0096] In this embodiment, a second monitoring component is also provided at the front end of the box body 31. The second monitoring component is used to monitor whether there are samples to be tested being transported on the sample conveyor belt 34. The controller is electrically connected to the detection probe, etc. When the second monitoring component detects that there are no samples to be tested being transported on the sample conveyor belt 34, the controller controls the detection probe and other structures to shut down to save energy and increase the service life of the detection probe.

[0097] Optionally, in this embodiment, the second monitoring component is a distance meter, which determines whether a sample to be detected is being conveyed on the sample conveyor belt 34 by measuring the distance between the second monitoring component and the sample conveyor belt 34 .

[0098] It is understandable that, in this embodiment, the second monitoring component may also be a camera, which determines whether a sample to be detected is being conveyed on the sample conveyor belt 34 by means of image recognition.

[0099] In this embodiment, the ash content detection equipment 3 also includes a supporting frame 32 and a connecting rod 33; the box body 31 is connected to the supporting frame 32 through the connecting rod 33; the length of the connecting rod 33 can be adjusted, and the connecting rod 33 and the box body 31, as well as the connecting rod 33 and the supporting frame 32 are all rotatably connected.

[0100] The support frame 32 is used to support the box 31 so that the box 31 can be located above the sample conveyor belt 34. The support frame 32 has four legs, which are arranged on the ground. The box 31 is connected to the support frame 32 through a connecting rod 33. In addition, the box 31 and the connecting rod 33, as well as the support frame 32 and the connecting rod 33, are all rotatably connected. In this way, it can play a certain buffering role when the height of the sample to be detected on the sample conveyor belt 34 is too high, reduce the vibration when the box 31 touches the sample to be detected, and avoid damage to the equipment inside the box 31.

[0101] In addition, the length of the connecting rod 33 can be adjusted to adjust the distance between the detection probe and the sample conveyor belt 34, so as to adapt to different detection environments and improve the practicability of the online ash detection device.

[0102] Optionally, in this embodiment, a stud bolt is provided on the connecting rod 33, and the length of the connecting rod 33 can be adjusted by screwing the stud bolt.

[0103] It is understandable that, in the present embodiment, the connecting rod 33 may also be a telescopic cylinder such as a pneumatic cylinder, an oil cylinder or an electric cylinder, which can also achieve the purpose of adjusting the length of the connecting rod 33 .

[0104] Optionally, in this embodiment, bearings are provided at both ends of the connecting rod 33, and rotating shafts corresponding to the connecting rod 33 are provided on the box body 31 and the supporting frame 32. The rotating shaft cooperates with the bearings to achieve a rotating connection between the connecting rod 33 and the box body 31, and between the connecting rod 33 and the supporting frame 32.

[0105] In the X-ray ash content detection system provided in the embodiment of the utility model, preferably, the particle size of the sample to be detected obtained by crushing by the crushing device 2 is less than or equal to 3 mm, so as to improve the accuracy of subsequent detection by the ash content detection device 3.

[0106] The X-ray ash content detection system provided by the embodiment of the utility model is as follows: Figures 6 to 11 As shown, the crushing equipment 2 includes a primary crushing component 21 and a secondary crushing component 22; the primary crushing component 21 includes a first crushing roller 211 and a crushing plate 212; the first crushing roller 211 and the crushing plate 212 are spaced apart, and a first crushing space 213 is formed between the first crushing roller 211 and the crushing plate 212; the secondary crushing component 22 includes a second crushing roller 221 and a third crushing roller 222; the second crushing roller 221 and the third crushing roller 222 are spaced apart, and a second crushing space 223 is formed between the second crushing roller 221 and the third crushing roller 222; the second crushing space 223 is connected to the first crushing space 213, and the crushing ratio in the second crushing space 223 is greater than the crushing ratio in the first crushing space 213.

[0107] In this embodiment, the primary crushing assembly 21 and the secondary crushing assembly 22 are arranged vertically. The primary crushing assembly 21 includes a first crushing roller 211 and a crushing plate 212, which are arranged at intervals, and a first crushing space 213 is formed between the first crushing roller 211 and the crushing plate 212. When in use, the material is put into the first crushing space 213, and the material is preliminarily crushed in the first crushing space 213 by mutual extrusion of the first crushing roller 211 and the crushing plate 212. The secondary crushing assembly 22 includes a second crushing roller 221 and a third crushing roller 222, which are arranged at intervals, and a second crushing space 223 connected to the first crushing space 213 is formed between the second crushing roller 221 and the third crushing roller 222. The product obtained in the first crushing space 213 falls into the second crushing space 223 under the action of gravity, and a product with a preset particle size is obtained in the second crushing space 223 by mutual extrusion of the second crushing roller 221 and the third crushing roller 222.

[0108] That is, in this embodiment, through the cooperation of the primary crushing assembly 21 and the secondary crushing assembly 22, coal particles with a particle size less than or equal to 3 mm can be finally produced.

[0109] Furthermore, the crushing device 2 further comprises a first driving member 214, a first reducer, a second driving member 224 and a second reducer. The first driving member 214 drives the first crushing roller to rotate through the first reducer, and the second driving member 224 drives the second crushing roller 221 to rotate through the second reducer.

[0110] In this embodiment, the crushing plate 212 has a first crushing part 2121 and a second crushing part 2122 connected to the first crushing part 2121, the first crushing part 2121 and the second crushing part 2122 are arranged at an angle, and the first crushing roller 211 is located between the angles of the first crushing part 2121 and the second crushing part 2122; wherein, the distance between the first crushing part 2121 and the first crushing roller 211 gradually decreases toward the direction approaching the second crushing part 2122, the distance between the second crushing part 2122 and the first crushing roller 211 gradually decreases toward the direction approaching the tail end of the crushing plate 212, and the distance between the first crushing part 2121 and the first crushing roller 211 is greater than the distance between the second crushing part 2122 and the first crushing roller 211.

[0111] When in use, the material can enter between the first crushing part 2121 and the first crushing roller 211, and between the second crushing part 2122 and the first crushing roller 211 from top to bottom in sequence, so that the material can be initially crushed in the first crushing space 213. In this process, since the distance between the first crushing part 2121 and the first crushing roller 211 gradually decreases toward the second crushing part 2122, the distance between the second crushing part 2122 and the first crushing roller 211 gradually decreases toward the tail end of the crushing plate 212, and the distance between the first crushing part 2121 and the first crushing roller 211 is greater than the distance between the second crushing part 2122 and the first crushing roller 211, therefore, when the material is crushed between the second crushing part 2122 and the first crushing roller 211, the particle size is smaller than the particle size of the material after being crushed between the first crushing part 2121 and the first crushing roller 211, so that the particle size of the material gradually becomes smaller after being crushed in the first crushing space 213, so as to achieve initial crushing of the material.

[0112] Furthermore, in this embodiment, the primary crushing assembly 21 further includes a first sliding bearing 216, which is used to realize an adjustable distance setting between the first crushing roller 211 and the crushing plate 212. Specifically, both ends of the first crushing roller 211 are connected with the first sliding bearing 216, and the first crushing roller 211 can be close to or away from the first crushing part 2121 under the action of the first sliding bearing 216, so as to fine-tune the distance between the first crushing roller 211 and the crushing plate 212, thereby adjusting the discharge particle size of the first crushing space 213.

[0113] The X-ray ash content detection system provided by the embodiment of the utility model is as follows: Figures 6 to 11 As shown, the third crushing roller 222 is located below the crushing plate 212, and the tail end of the crushing plate 212 is located on the side of the central axis of the third crushing roller 222 close to the second crushing roller 221, the central axis of the second crushing roller 221 is located above the central axis of the third crushing roller 222, and the highest point of the second crushing roller 221 is located above the tail end of the crushing plate 212, and the plane where the symmetry axis of the third crushing roller 222 and the second crushing roller 221 is located intersects with the path of the material after it leaves the crushing plate 212.

[0114] In this embodiment, the path of the material after it leaves the second crushing part 2122 extends in a parabolic shape. Since the central axis of the second crushing roller 221 is located above the central axis of the third crushing roller 222, and the highest point of the second crushing roller 221 is located above the tail end of the crushing plate 212, when the material enters the second crushing space 223 from the first crushing space 213, the highest point of the second crushing roller 221 can block the material, preventing the material from escaping from the second crushing space 223 from above the highest point of the second crushing roller 221, thereby ensuring that the material can complete secondary crushing in the second crushing space 223. At the same time, since the third crushing roller 222 is located below the crushing plate 212, and the tail end of the crushing plate 212 is located on the side of the central axis of the third crushing roller 222 close to the second crushing roller 221, when the material enters the second crushing space 223 from the first crushing space 213, it can be prevented from escaping from the second crushing space 223 from the side of the third crushing roller 222 away from the second crushing roller 221, thereby further ensuring that the material can complete secondary crushing in the second crushing space 223, thereby reducing material leakage. At the same time, since the plane of the symmetry axis of the third crushing roller 222 and the second crushing roller 221 intersects with the path of the material after it separates from the crushing plate 212, when the material separates from the second crushing part 2122, the material can fall between the second crushing roller 221 and the third crushing roller 222, so that the material can be crushed by the relative movement between the second crushing roller 221 and the third crushing roller 222, thereby improving the crushing efficiency of the material in the second crushing space 223.

[0115] Preferably, in this embodiment, a dispersing assembly 23 is further provided below the secondary crushing assembly 22, and the dispersing assembly 23 is provided with a dispersing space 233, and the dispersing space 233 is connected with the secondary crushing space. After the material is crushed in the second crushing space 223, it can enter the dispersing space 233 downward, so that the crushed material can be dispersed in the dispersing space 233 by the dispersing assembly 23, so that the particle size of the material dispersed in the dispersing space 233 is smaller than the particle size of the material in the second crushing space 223, thereby further improving the crushing ratio of the crushing device.

[0116] Specifically, in this embodiment, the disintegration assembly 23 includes a first disintegration piece 231 and a second disintegration piece 232. The first disintegration piece 231 is connected to the second crushing roller 221 by a transmission belt or a chain, so that the second crushing roller 221 can drive the first disintegration piece 231 to rotate; the second disintegration piece 232 is connected to the first disintegration piece 231 by a transmission belt or a chain, so that the first disintegration piece 231 can drive the second disintegration piece 232 to rotate. The disintegration space 233 is located at one end of the first disintegration piece 231 and the second disintegration piece 232 close to the second crushing space 223. Since the first dispersing piece 231 can drive the second dispersing piece 232 to rotate, the material entering the dispersing space 233 can be dispersed by the rotation of the first dispersing piece 231 and the second dispersing piece 232. In this process, since the dispersing space 233 is located at one end of the first dispersing piece 231 and the second dispersing piece 232 close to the second crushing space 223, when the material enters the dispersing space 233, the material will fall onto the first dispersing piece 231 and the second dispersing piece 232. During the rotation of the first dispersing piece 231 and the second dispersing piece 232, the first dispersing piece 231 and the second dispersing piece 232 will cause the material to move irregularly, thereby achieving the purpose of dispersing the material, thereby improving the crushing ratio of the crushing device.

[0117] Further, in the present embodiment, the first dispersing member 231 has a plurality of first dispersing portions 2311, which are arranged at intervals along the circumference of the first dispersing member 231 to define a plurality of first dispersing grooves 2312. The second dispersing member 232 has a plurality of second dispersing portions 2321, which are arranged at intervals along the circumference of the second dispersing member 232 to define a plurality of second dispersing grooves 2322. The first dispersing member 231 and the second dispersing member 232 are meshed for transmission, and at the meshing point between the first dispersing member 231 and the second dispersing member 232, any first dispersing portion 2311 abuts against the groove wall of a second dispersing groove 2322, and any second dispersing portion 2321 abuts against the groove wall of a first dispersing groove 2312.

[0118] When in use, on the second dispersing piece 232, the material dropped from the second crushing space 223 can fall along the first direction onto any second dispersing portion 2321 and into the second dispersing groove 2322 adjacent to the second dispersing portion 2321. Since there is a height difference between the second dispersing portion 2321 and the second dispersing groove 2322, the material can be made to move irregularly during the rotation of the second dispersing piece 232. The material discharged from the second crushing space 223 will be sticky and in the shape of a cake. Through the cooperation of the first dispersing piece 231 and the second dispersing piece 232, the material sticky and in the shape of a cake can be dispersed by the second dispersing part 2321. At the same time, in the meshing area between the first dispersing piece 231 and the second dispersing piece 232, the material sticky and in the shape of a cake can be dispersed by the relative movement of the first dispersing piece 231 and the second dispersing piece 232, or by the opposite movement of the first dispersing piece 231 and the second dispersing piece 232.

[0119] In this embodiment, the first crushing roller 211 and the first driving member 214 are belt-driven, the second crushing roller 221 and the first crushing roller 211 are belt-driven, the scattering assembly 23 and the second crushing roller 221 are belt-driven, and the third crushing roller 222 and the second driving member 224 are belt-driven. In this process, since the second crushing roller 221 and the first crushing roller 211 are belt-driven, when the first crushing roller 211 rotates, the first crushing roller 211 can drive the second crushing roller 221 to rotate, so that the first crushing roller 211 can drive the second crushing roller 221 to operate. At the same time, since the third crushing roller 222 and the second driving member 224 are belt-driven, and the breaking up component 23 and the second crushing roller 221 are belt-driven, the second driving member 224 can drive the third crushing roller 222 to operate, and the second crushing roller 221 can drive the breaking up component 23 to operate, so that the material can enter the first crushing space 213, the second crushing space 223 and the breaking up space 233 from top to bottom in turn, so as to complete the crushing of the material through the linkage relationship between the primary crushing component 21, the secondary crushing component 22 and the breaking up component 23.

[0120] Optionally, in this embodiment, the secondary crushing assembly 22 is provided with a slide 226, and the third crushing roller 222 can be close to or away from the second crushing roller 221 in the slide 226. The secondary crushing assembly 22 also includes a first distance adjustment member 227, one end of the first distance adjustment member 227 is against the end of the third crushing roller 222 away from the second crushing roller 221, and the third crushing roller 222 can be close to the second crushing roller 221 under the action of the first distance adjustment member 227.

[0121] In this embodiment (not shown in the drawings), the first distance adjusting member 227 may be a hydraulic cylinder, and the piston end of the hydraulic cylinder abuts against one end of the third crushing roller 222 away from the second crushing roller 221. Since one end of the first distance adjusting member 227 abuts against one end of the third crushing roller 222 away from the second crushing roller 221, and the third crushing roller 222 can approach the second crushing roller 221 under the action of the first distance adjusting member 227, the distance between the third crushing roller 222 and the second crushing roller 221 can be adjusted by the first distance adjusting member 227, so as to control the particle size of the material after crushing in the second crushing space 223. At the same time, since the above-mentioned crushing device 2 is not suitable for starting with material, the first distance adjusting member 227 can be used to move the third crushing roller 222 away from the second crushing roller 221 after each start-up, and then return to the preset position for controlling the particle size of the material, so as to release the remaining material between the third crushing roller 222 and the second crushing roller 221, so as to protect the above-mentioned crushing device 2.

[0122] Or, in this embodiment, if Figure 6 As shown, the first distance adjusting member 227 is a reset spring. The third crushing roller 222 can be moved closer to or away from the second crushing roller 221 in the slideway 226 under the action of the reset spring. One end of the reset spring abuts against one end of the third crushing roller 222 away from the second crushing roller 221, and the other end of the reset spring abuts against a side wall of the slideway 226 away from the third crushing roller 222. When the third crushing roller 222 moves in the slideway 226 away from the second crushing roller 221, the reset spring is compressed.

[0123] Specifically, since the third crushing roller 222 can approach or move away from the second crushing roller 221 in the slide 226, when the third crushing roller 222 and the second crushing roller 221 rotate relative to each other, the third crushing roller 222 will move away from the second crushing roller 221 under the squeezing effect of the material. In this way, it is possible to avoid blockage between the third crushing roller 222 and the second crushing roller 221 when the material is crushed in the second crushing space 223. At the same time, since one end of the return spring is against the end of the third crushing roller 222 away from the second crushing roller 221, and the other end of the return spring is against the side wall of the slide 226 away from the third crushing roller 222, when the third crushing roller 222 is away from the second crushing roller 221, the third crushing roller 222 can apply an extrusion force to the return spring, so that the return spring has a reaction force to push the third crushing roller 222 to approach the second crushing roller 221, so that the third crushing roller 222 can approach the second crushing roller 221 under the action of the return spring, so as to maintain the distance between the third crushing roller 222 and the second crushing roller 221, thereby ensuring the particle size of the material after crushing in the second crushing space 223 and ensuring the crushing ratio of the secondary crushing assembly 22.

[0124] Furthermore, in this embodiment, when the first distance adjusting member 227 is a return spring, the secondary crushing assembly 22 also includes a second distance adjusting member 228, and the third crushing roller 222 is against the second distance adjusting member 228 along one end close to the second crushing roller 221, and the third crushing roller 222 can be moved away from the second crushing roller 221 under the action of the second distance adjusting member 228.

[0125] Specifically, the second distance adjusting member 228 and the third crushing roller 222 are butted against each other by bolts. When the bolts are loosened, the third crushing roller 222 and the second distance adjusting member 228 can be loosened, so that the third crushing roller 222 can have a moving space to move close to the second crushing roller 221, so as to fine-tune the distance between the third crushing roller 222 and the second crushing roller 221, and ensure that the particle size of the material after crushing is guaranteed while ensuring that there is no blockage between the third crushing roller 222 and the second crushing roller 221.

[0126] Optionally, in this embodiment, the secondary crushing assembly 22 further includes a second sliding bearing 229, and both ends of the second crushing roller 221 are connected with the second sliding bearing 229, and the second crushing roller 221 can be close to or away from the third crushing roller 222 under the action of the second sliding bearing 229. When in use, the second crushing roller 221 can be further moved close to or away from the third crushing roller 222 by the second sliding bearing 229, so as to fine-tune the distance between the second crushing roller 221 and the third crushing roller 222, so as to control the particle size of the material after crushing in the second crushing space 223.

[0127] Optionally, in this embodiment, the primary crushing assembly 21 also includes a first material blocking member 217, which is arranged at the end of the first crushing roller 211 away from the crushing plate 212, and the first material blocking member 217 is provided with a material blocking space 2171, which is located above the second crushing space 223, and the end of the first crushing roller 211 away from the crushing plate 212 is arranged in the material blocking space 2171.

[0128] In this embodiment, when the first crushing roller 211 rotates relative to the crushing plate 212, some material will be attached to the surface of the first crushing roller 211, and the material may fall off the first crushing roller 211 from the end of the first crushing roller 211 away from the crushing plate 212. Since the end of the first crushing roller 211 away from the crushing plate 212 is arranged in the material blocking space 2171 of the first material blocking member 217, and the material blocking space 2171 is located above the second crushing space 223, the first material blocking member 217 can block the material attached to the end of the first crushing roller 211 away from the crushing plate 212, so that the material can fall from the material blocking space 2171 into the second crushing space 223, thereby reducing the leakage rate of the material.

[0129] Furthermore, in this embodiment, an end of the first material stopper 217 away from the first crushing roller 211 is located at an end of the central axis of the second crushing roller 221 close to the third crushing roller 222 .

[0130] In this embodiment, since the end of the first material blocking member 217 away from the first crushing roller 211 is located at the end of the central axis of the second crushing roller 221 close to the third crushing roller 222, the material can be blocked by the first material blocking member 217 to the end of the central axis of the second crushing roller 221 close to the third crushing roller 222, so as to avoid the material from falling to the end of the central axis of the second crushing roller 221 away from the third crushing roller 222, thereby ensuring that the material can enter the second crushing space 223 and further reduce the leakage rate of the material.

[0131] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0132] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0133] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An X-ray ash content detection system, characterized in that: include: Sampling equipment (1), crushing equipment (2) and ash detection equipment (3); The sampling device (1) is used to take coal samples from the raw coal conveyor belt, and the coal samples taken by the sampling device (1) are conveyed to the crushing device (2); The crushing device (2) is used to crush the coal sample into samples to be tested with a preset particle size, and the samples to be tested obtained by the crushing device (2) are transported to the ash content testing device (3); The ash content detection device (3) comprises a box (31) and a detection probe, wherein the detection probe is arranged in the box (31), a contact surface (3111) is provided at the lower end of the box (31), and a first through hole (3113) is provided on the contact surface (3111) for connecting the inside of the box (31) and the outside; During detection, the contact surface (3111) contacts the sample to be detected and flattens the sample to be detected, so that the distance between the detection probe and the sample to be detected is constant, and the detection probe detects the ash content of the sample to be detected through the first through hole (3113).

2. The X-ray ash content detection system according to claim 1, characterized in that: The distance between the detection probe and the sample to be detected is less than or equal to 8 mm.

3. The X-ray ash content detection system according to claim 1, characterized in that: A recessed structure (3112) is provided on the contact surface (3111), and the first through hole (3113) is provided in the recessed structure (3112).

4. The X-ray ash content detection system according to claim 3, characterized in that: The ash content detection device (3) further comprises a sample conveyor belt (34); The sample to be tested obtained by the crushing device (2) is conveyed to the sample conveyor belt (34), and the box (31) is erected above the sample conveyor belt (34).

5. The X-ray ash content detection system according to claim 4, characterized in that: Along the conveying direction of the sample conveyor belt (34), the discharge end of the crushing device (2) and the box body (31) are arranged in sequence above the sample conveyor belt (34).

6. The X-ray ash content detection system according to claim 4, characterized in that: A shoveling structure is provided at the front end of the contact surface (3111).

7. The X-ray ash content detection system according to claim 6, characterized in that: The shoveling structure comprises a first baffle (312) and a second baffle (313); The first baffle (312) and the second baffle (313) are connected, the first baffle (312) and the second baffle (313) are arranged obliquely in the front-to-back direction, and / or the first baffle (312) and the second baffle (313) are arranged obliquely in the up-down direction; The box body (31) comprises a first bottom plate (311), the surface of the first bottom plate (311) facing the sample conveyor belt (34) being the contact surface (3111), and the lower ends of the first baffle plate (312) and the second baffle plate (313) are both connected to the front end of the first bottom plate (311).

8. The X-ray ash content detection system according to claim 1, characterized in that: The particle size of the sample to be tested obtained by crushing with the crushing device (2) is less than or equal to 3 mm.

9. The X-ray ash content detection system according to claim 8, characterized in that: The crushing device (2) comprises a primary crushing component (21) and a secondary crushing component (22); The primary crushing assembly (21) comprises a first crushing roller (211) and a crushing plate (212); The first crushing roller (211) and the crushing plate (212) are arranged at an interval, and a first crushing space (213) is formed between the first crushing roller (211) and the crushing plate (212); The secondary crushing assembly (22) comprises a second crushing roller (221) and a third crushing roller (222); The second crushing roller (221) and the third crushing roller (222) are arranged at an interval, and a second crushing space (223) is formed between the second crushing roller (221) and the third crushing roller (222); The second crushing space (223) is connected to the first crushing space (213), and a crushing ratio in the second crushing space (223) is greater than a crushing ratio in the first crushing space (213).

10. The X-ray ash content detection system according to claim 9, characterized in that: The third crushing roller (222) is located below the crushing plate (212), and the tail end of the crushing plate (212) is located on the side of the central axis of the third crushing roller (222) close to the second crushing roller (221), the central axis of the second crushing roller (221) is located above the central axis of the third crushing roller (222), and the highest point of the second crushing roller (221) is located above the tail end of the crushing plate (212), and the plane where the symmetry axis of the third crushing roller (222) and the second crushing roller (221) is located intersects with the path of the material after it leaves the crushing plate (212).

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