Weighing and sampling system for analyzing total moisture of coal sample

Abstract

The utility model relates to the technical field of coal, and provides a weighing and sampling system for analyzing the total moisture of a coal sample, the weighing and sampling system comprises a coal bottle, a sampling device, a weighing device and a carrying device, the coal bottle is arranged at a sampling station, and the coal bottle is used for storing the coal sample; the sampling device comprises a driving assembly and a sampling assembly, the driving assembly is arranged on one side of the sampling station, the sampling assembly is arranged on the driving assembly, the driving assembly is used for driving the sampling assembly to move, the sampling assembly is used for transferring the coal sample from the coal bottle to the weighing device, and the weighing device is used for weighing the coal sample; the carrying device comprises a first carrying assembly and a second carrying assembly, and the first carrying assembly is used for transferring the coal samples weighed by the weighing device out of the weighing and sampling system; the second carrying assembly is used for replacing the coal bottles. According to the weighing and sampling system provided by the utility model, through the matching of the sampling device, the weighing device and the carrying device, the manual intervention in the coal sample weighing and sampling process can be reduced, and the automation and operation efficiency of the system can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal, in particular to a weighing and sampling system for analyzing the total moisture of coal samples. Background Art

[0002] The total moisture of coal refers to the total amount of moisture contained in a coal sample when it is taken. In the process of traditional measurement of the total moisture of coal samples, generally, a person manually takes samples in a coal bottle and weighs 10-12 g of the coal sample, and then uses a special instrument (such as a total moisture analyzer) to detect the total moisture content of the coal sample. However, during the process of weighing and transferring the coal sample, the humidity and viscosity of the coal sample are high, and the fluidity is poor, resulting in great difficulty in manually weighing and transferring the coal sample, cumbersome procedures, and low sampling and weighing efficiency. Summary of the Utility Model

[0003] The utility model provides a weighing and sampling system for analyzing the total moisture of coal samples to solve the defects in the transfer and measurement of coal samples in the prior art. Through the cooperation of a sampling device, a weighing device and a handling device, manual intervention in the weighing and sampling process of the total moisture of coal samples can be reduced, the automation of the weighing and sampling process of the total moisture of coal samples can be improved, and the overall operation efficiency is conducive to the improvement.

[0004] The weighing and sampling system for analyzing the total moisture of coal samples provided by the utility model includes:

[0005] A coal bottle, arranged at the sampling station, for storing coal samples;

[0006] A sampling device, including a driving component and a sampling component. The driving component is arranged on one side of the sampling station, the sampling component is arranged on the driving component, the driving component is used to drive the sampling component to move, and the sampling component is used to transfer the coal sample from the coal bottle to the weighing device, and the weighing device is used to weigh the coal sample;

[0007] A handling device, including a first handling component and a second handling component. The first handling component is used to transfer the coal sample weighed by the weighing device out of the weighing and sampling system; the second handling component is used to replace the coal bottle.

[0008] According to the weighing and sampling system for analyzing the total moisture of coal samples provided by the utility model, the driving component includes a lifting component and a rotating component. The lifting component is arranged on one side of the sampling station, the rotating component is arranged on the lifting component, the sampling component is arranged on the rotating component, and the lifting component and the rotating component are used to drive the sampling component to move between a first preset position and a second preset position.

[0009] According to the weighing and sampling system for analyzing the total moisture content of coal samples provided by the present utility model, the sampling assembly includes a sampling base, a linear driving component, a sampling tube, and a sampling shaft. The sampling base is connected to the rotating component. The linear driving component and the sampling tube are both fixed to the sampling base. The sampling shaft passes through the sampling tube and is connected to the linear driving component. The sampling shaft is adapted to make a reciprocating linear motion along the lumen of the sampling tube driven by the linear driving component. One end of the sampling shaft away from the linear driving component is provided with a first chip scraping ring, and the first chip scraping ring is adapted to abut against the inner wall of the lumen, and the first chip scraping ring is used to clean the lumen.

[0010] According to the weighing and sampling system for analyzing the total moisture content of coal samples provided by the present utility model, the sampling base includes a base body and a counterweight. The base body is connected to the rotating component. The sampling tube and the sampling shaft are located on one side of the base body, and the counterweight is located on the other side of the base body.

[0011] According to the weighing and sampling system for analyzing the total moisture content of coal samples provided by the present utility model, one end of the sampling tube away from the sampling base is provided with an inclined opening, and the inclined opening is inclined in a direction away from the weighing device, and the inclined opening is used to guide the coal samples to enter and exit the sampling tube.

[0012] According to the weighing and sampling system for analyzing the total moisture content of coal samples provided by the present utility model, it further includes a cleaning assembly. When the coal bottle is removed from the sampling station, the cleaning assembly is adapted to be transferred to the sampling station by the second handling assembly, and the cleaning assembly is used to clean the sampling assembly.

[0013] According to the weighing and sampling system for analyzing the total moisture content of coal samples provided by the present utility model, the cleaning assembly includes a cleaning bucket and a second chip scraping ring. The upper end of the cleaning bucket is provided with an opening, and the second chip scraping ring is arranged at the opening. The inner diameter of the second chip scraping ring corresponds to the outer diameter of the sampling tube, and the second chip scraping ring is used to clean the outer wall of the sampling tube.

[0014] According to the weighing and sampling system for analyzing the total moisture content of coal samples provided by the present utility model, the weighing device includes a wind shield, a crucible, a support assembly, and a weighing member. The top surface of the wind shield is provided with a feed inlet. The support assembly is arranged inside the wind shield. The crucible is arranged on the support assembly and corresponds to the position of the feed inlet. The weighing member is arranged below the support assembly. When weighing the coal samples, the weighing member is adapted to pass through the support assembly and lift the crucible from the support assembly, and the weighing member is used to obtain the mass information of the coal samples.

[0015] According to the weighing and sampling system for analyzing the total moisture content of coal samples provided by the present utility model, the support assembly includes a support member and a linear drive member. The support member is disposed between the crucible and the weighing member, and the linear drive member is disposed on one side of the support member. The linear drive member is used to drive the support member to perform linear reciprocating motion in the vertical direction.

[0016] The weighing and sampling system for analyzing the total moisture content of coal samples provided by the present utility model further includes a control component. The control component is electrically connected to the weighing member and the linear drive component respectively. Based on the mass information, the control component determines the propulsion speed of the linear drive component.

[0017] In the weighing and sampling system provided by the embodiment of the present utility model, the driving component drives the sampling component to transfer the coal sample in the coal bottle to the weighing device for weighing, and the first handling component and the second handling component are correspondingly used to realize the transfer of the coal sample and the coal bottle before and after the measurement. In this way, the manual participation in the process of weighing and sampling the coal sample can be reduced, the measurement accuracy can be improved, the weighing and sampling steps can be optimized, and the overall efficiency of the coal sample weighing and sampling process can be improved. Compared with the prior art, in the total moisture sampling system provided by the embodiment of the present utility model, through the cooperation of the sampling device, the weighing device and the handling device, the manual intervention in the process of weighing and sampling the total moisture of the coal sample can be reduced, the automation of the process of weighing and sampling the total moisture of the coal sample can be improved, which is beneficial to the improvement of the overall operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is the main sectional view of the weighing and sampling system for analyzing the total moisture content of coal samples provided by the embodiment of the present utility model.

[0020] Figure 2 is the axonometric structural schematic diagram of the weighing and sampling system for analyzing the total moisture content of coal samples provided by the embodiment of the present utility model.

[0021] Figure 3 is Figure 1 the enlarged schematic diagram of the local structure at A in

[0022] Figure 4 is the assembly schematic diagram of the counterweight block provided by the embodiment of the present utility model.

[0023] Figure 5It is the main cross-sectional view of the cleaning component provided by the embodiment of the present utility model.

[0024] Figure 6 It is the main cross-sectional view of the weighing device provided by the embodiment of the present utility model.

[0025] Reference numerals:

[0026] 10: Coal bottle; 20: Sampling station; 30: First rack; 40: Second rack; 100: Sampling device; 110: Driving component; 111: Lifting component; 112: Rotating component; 120: Sampling component; 121: Sampling seat; 1211: Base body; 1212: Counterweight; 122: Linear driving component; 123: Sampling pipe; 1231: Bevel; 124: Sampling shaft; 1241: First chip scraping ring; 200: Weighing device; 210: Windshield; 220: Crucible; 230: Support component; 231: Support; 232: Linear driving part; 240: Weighing part; 300: Cleaning component; 310: Cleaning bucket; 320: Second chip scraping ring. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0029] In the embodiments of the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0030] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0031] Figure 1 is the main sectional view of the weighing and sampling system for analyzing the total moisture content of coal samples provided by the embodiments of the present utility model; Figure 2 is the axonometric structural schematic diagram of the weighing and sampling system for analyzing the total moisture content of coal samples provided by the embodiments of the present utility model.

[0032] Refer to Figure 1 and Figure 2 According to this and this, the embodiments of the present utility model provide a weighing and sampling system for analyzing the total moisture content of coal samples. Hereinafter, it is referred to as the weighing and sampling system for short. The weighing and sampling system includes a first frame 30, a second frame 40, a coal bottle 10, a sampling device 100, a weighing device 200, and a handling device (not shown in the figure). Among them, a sampling station 20 and a preparatory station are provided on the first frame 30. The preparatory station is arranged at an interval from the sampling station 20. The first frame 30 is used to arrange the coal bottle 10, the sampling device 100, and the cleaning component 300 described later. The second frame 40 is used to arrange the weighing device 200. The first frame 30 and the second frame 40 are independent of each other. Such an arrangement can ensure the independence of the weighing device 200, ensure that the weighing process of the coal sample is not interfered by other factors, and can improve the accuracy of the weighing result. The main bodies of the first frame 30 and the second frame 40 can be assembled from metal parts or non-metal parts, as long as the actual requirements are met. Specifically, it can be designed with reference to the prior art, and will not be elaborated herein.

[0033] The coal bottle 10 is arranged at the sampling station 20. The weighing and sampling system provided by the present utility model can perform cyclic and automated operations. For the convenience of explanation, an arbitrary sampling process in the operation of the weighing and sampling system is taken as an example in this article. It should be noted that different coal samples are stored in different coal bottles 10, and the coal bottles 10 in this article need to be synchronously replaced according to the different requirements of each measurement object. It should also be noted that the sampling station 20 is a schematic reference given in the embodiments of the present utility model for explanation and is not a specific limitation of the embodiments of the present utility model. The sampling station 20 can be adaptively selected and set according to the actual situation. For example, the sampling station 20 can be selected and arranged on the first rack 30, or directly arranged on the ground or other platforms. In other words, the settings of the first rack 30 and the second rack 40 can be omitted. In this case, the position heights of components such as the sampling device 100 and the weighing device 200 can be adaptively adjusted.

[0034] The sampling device 100 includes a driving component 110 and a sampling component 120. The driving component 110 is arranged on the first rack 30 and is located on one side of the sampling station 20. The sampling component 120 is arranged on the driving component 110. The driving component 110 is used to drive the sampling component 120 to move. The sampling component 120 is used to transfer the coal sample from the coal bottle 10 to the weighing device 200, and the weighing device 200 is used to weigh the coal sample; the handling device includes a first handling component and a second handling component. The first handling component is used to transfer the coal sample weighed by the weighing device 200 out of the weighing and sampling system, and the second handling component is used to replace the coal bottle 10. Specifically, the first handling component and the second handling component can adopt existing devices such as a manipulator, and the first handling component and the second handling component can be adaptively designed according to the existing technology, which will not be elaborated herein. In the optional embodiments of the present utility model, the functions realized by the above-mentioned handling device can also be achieved manually and can be adaptively set according to the actual situation.

[0035] Refer to Figure 1 and Figure 2 , it can be understood that for the weighing and sampling system provided by the embodiments of the present utility model, the driving component 110 drives the sampling component 120 to transfer the coal sample in the coal bottle 10 to the weighing device 200 for weighing, and the first handling component and the second handling component correspondingly realize the transfer of the coal sample and the coal bottle 10 before and after measurement. In this way, the manual participation in the process of weighing and sampling the coal sample can be reduced, the measurement accuracy can be improved, the weighing and sampling steps can be optimized, and the overall efficiency of the coal sample weighing and sampling process can be improved. Compared with the prior art, for the total moisture sampling system provided by the embodiments of the present utility model, through the cooperation of the sampling device 100, the weighing device 200 and the handling device, the manual intervention in the process of weighing and sampling the total moisture of the coal sample can be reduced, the automation of the process of weighing and sampling the total moisture of the coal sample can be improved, which is beneficial to the improvement of the overall operation efficiency.

[0036] Figure 3 is Figure 1 The enlarged schematic view of the local structure at position A in the figure.

[0037] Referring to Figures 1 to 3 In an alternative embodiment of the present utility model, the driving assembly 110 includes a lifting member 111 and a rotating member 112. The lifting member 111 is disposed on the first frame 30 and is located on one side of the sampling station 20. The rotating member 112 is disposed at the output end of the lifting member 111. The sampling assembly 120 is disposed on the rotating member 112. The rotating member 112 and the sampling assembly 120 are adapted to perform a reciprocating linear motion in the vertical direction under the drive of the lifting member 111. The lifting member 111 and the rotating member 112 are used to drive the sampling assembly 120 to move between a first preset position and a second preset position. The lifting member 111 may specifically adopt components such as a lead screw drive structure, a linear motor, or a plunger cylinder. The rotating member 112 may specifically adopt existing components with a rotating function such as a motor. Specifically, an adaptive design can be referred to the prior art, and the embodiments of the present utility model will not elaborate too much on this.

[0038] Taking Figure 1 as an example, the weighing device 200 is located on one side of the sampling station 20. The sampling assembly 120 has two different working positions, namely the first preset position and the second preset position. The first preset position refers to the position where the lifting member 111 drives the rotating member 112 and the sampling assembly 120 to move down to the bottom of the coal bottle 10 during the coal sample sampling process. During this process, the position change of the sampling assembly 120 is mainly driven by the lifting member 111, and the sampling assembly 120 moves vertically downward. The second preset position refers to the position where the lifting member 111 drives the rotating member 112 and the sampling assembly 120 to move upward after the coal sample sampling is completed, and then the rotating member 112 drives the sampling assembly 120 to rotate to transfer the discharge port of the sampling assembly 120 to directly above the feed port of the weighing device 200. In other words, the second preset position refers to the position where the sampling assembly 120 is located during unloading. During this process, the position change of the sampling assembly 120 is jointly driven by the lifting member 111 and the rotating member 112, and the sampling assembly 120 is in a horizontal state at the second preset position. Specifically, the first preset position and the second preset position can be adaptively adjusted according to actual situations, such as factors such as the position or height of the coal bottle 10, the position or height of the weighing device 200, etc. For example, in some alternative embodiments, the sampling assembly 120 can also be disposed at a certain angle with the horizontal plane to facilitate the transfer of the coal sample.

[0039] It can be understood that during the sampling process, the sampling assembly 120 can be pressed into the coal bottle 10 after the lid is opened by the pushing of the lifting member 111, and the coal sample in the coal bottle 10 is squeezed into the sampling assembly 120. Compared with manual sampling, the driving force of the lifting member 111 is large, and the resistance caused by the high humidity, high viscosity and poor fluidity of the coal sample can be ignored. Such a method is more efficient and convenient, and can greatly improve the efficiency of coal sample sampling.

[0040] Continue to refer to Figures 1 to 3 , in an alternative embodiment of the present invention, the sampling assembly 120 includes a sampling base 121, a linear driving member 122, a sampling tube 123 and a sampling shaft 124. The sampling base 121 is connected to the output end of the rotating member 112, and the sampling base 121 is adapted to rotate synchronously under the drive of the rotating member 112; the linear driving member 122 and the sampling tube 123 are both provided on the sampling base 121. The sampling shaft 124 passes through the sampling tube 123 and is fixedly connected to the output end of the linear driving member 122. The sampling shaft 124 is adapted to reciprocate linearly along the lumen of the sampling tube 123 under the drive of the linear driving member 122. It should be noted that the inner diameter of the sampling tube 123 can be adaptively adjusted according to different coal sample particle sizes (such as 3mm, 6mm, 13mm) and the required sample weight.

[0041] The following shows the coal sample sampling process of the weighing and sampling system provided in this embodiment, taking Figure 1 as an example. Before sampling, the sampling tube 123 is in a vertically downward state, and the sampling shaft 124 retracts deep into the sampling tube 123. After the system is ready, the lifting member 111 drives the sampling assembly 120 to move down into the coal bottle 10 to start sampling. As the sampling tube 123 continues to penetrate, the coal sample is continuously filled, squeezed and adhered in the lumen of the sampling tube 123. After the sampling tube 123 is inserted into the coal bottle 10 to a certain depth, the sampling is completed. At this time, the position of the sampling assembly 120 is the first preset position mentioned above.

[0042] The lifting member 111 operates in the reverse direction, driving the sampling assembly 120 to move up. After moving up to a certain height, the rotating member 112 operates to rotate the sampling assembly 120 clockwise by 90 degrees, so that the discharge port of the sampling tube 123 is aligned with the feed port of the weighing member. Then the lifting member 111 moves down a certain distance to make the discharge port of the sampling tube 123 close to the feed port of the weighing member to avoid splashing when the coal sample falls. At this time, the position of the sampling assembly 120 is the second preset position mentioned above. When the sampling assembly 120 reaches the second preset position, the linear driving member 122 operates to push the sampling shaft 124 to move out along the lumen of the sampling tube 123. In this way, the coal sample in the lumen can be pushed out, and the coal sample can fall to the weighing device 200 due to its own weight after leaving the discharge port of the sampling tube 123.

[0043] Continue to refer toFigure 1 and Figure 3 In an alternative embodiment of the present utility model, a first scraping ring 1241 is provided at one end of the sampling shaft 124 away from the linear driving member 122. The outer diameter of the first scraping ring 1241 is the same as the inner diameter of the sampling tube 123. In this way, it can be ensured that the first scraping ring 1241 abuts against the inner wall of the lumen of the sampling tube 123 after assembly. It can be understood that with such a setting, when the sampling shaft 124 is pushed out along the lumen of the sampling tube 123, the coal sample adhered to the inner wall of the lumen can be directly scraped out of the lumen by the first scraping ring 1241. It can avoid the contamination of the remaining coal sample to the second sampling during the secondary sampling of the sampling tube 123. In other words, it can ensure that the coal samples are not contaminated with each other.

[0044] Figure 4 FIG. is an assembly schematic diagram of the counterweight block provided by an embodiment of the present utility model.

[0045] Referring to Figure 3 and Figure 4 In an alternative embodiment of the present utility model, the sampling base 121 includes a base body 1211 and a counterweight 1212. The base body 1211 is connected to the rotating member 112. The sampling tube 123 and the sampling shaft 124 are located on one side of the base body 1211, and the counterweight 1212 is located on the other side of the base body 1211. It can be understood that by providing the counterweight 1212, the stability of the sampling assembly 120 can be improved during the rotation of the sampling assembly 120 driven by the rotating member 112, and it can avoid the leakage of the coal sample from the sampling tube 123 due to the tremor during the rotation process.

[0046] Continuing to refer to Figure 3 and Figure 4 In an alternative embodiment of the present utility model, an inclined opening 1231 is provided at one end of the sampling tube 123 away from the linear driving mechanism. In other words, the discharge port of the sampling tube 123 is of an inclined opening structure, and the inclined opening 1231 is inclined in a direction away from the weighing device 200. It can be understood that with such a setting, when the sampling tube 123 is inserted into the coal bottle 10, the contact area between the tip of the inclined opening 1231 and the coal sample is small, which is beneficial to the insertion of the sampling tube 123 into the coal sample and can make the entry of the coal sample smoother; when the coal sample is transferred from the sampling tube 123 to the weighing device 200, the inclined opening 1231 is beneficial to guiding the coal sample to fall, and it can avoid the blockage of the coal sample at the discharge port of the sampling tube 123. In other words, the inclined opening 1231 can improve the smoothness of the coal sample entering and exiting the sampling tube 123.

[0047] Figure 5 FIG. is a main cross-sectional view of the cleaning assembly provided by an embodiment of the present utility model.

[0048] Continuing to refer to Figure 1 、 Figure 2 and Figure 5, in an alternative embodiment of the present utility model, the weighing and sampling system further includes a cleaning assembly 300. The cleaning assembly 300 is disposed at the preparation station and is used to clean the sampling assembly 120. As described above, the weighing and sampling system provided in this embodiment can operate cyclically. Specifically, after the previous coal bottle 10 is sampled, the cleaning assembly 300 can be transferred from the preparation station to the sampling station 20 by the second handling assembly to clean the sampling assembly 120. It can be understood that by providing the cleaning assembly 300, the sampling assembly 120 can be cleaned after each sampling. In this way, the coal samples adhered to the sampling assembly 120 can be cleaned in time, and the next coal sample can be prevented from being contaminated by the sampling assembly 120. Compared with the manual cleaning method in the prior art, the weighing and sampling system provided by the present utility model has a high degree of automation and can greatly improve the cleaning efficiency.

[0049] Refer to Figure 1 and Figure 5 , in an alternative embodiment of the present utility model, the cleaning assembly 300 includes a cleaning barrel 310 and a second scraping ring 320. The upper end of the cleaning barrel 310 is provided with an opening, and the second scraping ring 320 is disposed at the opening. The inner diameter of the second scraping ring 320 is the same as the outer diameter of the sampling tube 123. When the sampling assembly 120 needs to be cleaned, the sampling assembly 120 is adjusted to the first preset position. When the sampling tube 123 gradually moves down into the cleaning barrel 310, the second scraping ring 320 will abut against the outer wall of the sampling tube 123. In this way, the coal samples adhered to the outer wall of the sampling tube 123 can be cleaned by the second scraping ring 320, and the coal sample in the next coal bottle 10 can be prevented from being contaminated by the sampling assembly 120. On the basis of the foregoing embodiment, through the cooperation of the first scraping ring and the second scraping ring 320, the inner wall and the outer wall of the sampling tube 123 can be cleaned simultaneously during the cleaning process, which can greatly improve the independence of each sampling of the sampling device 100 and prevent cross-contamination between the front and rear coal samples and between the front and rear coal bottles 10.

[0050] Figure 6 is the main sectional view of the weighing device provided by the embodiment of the present utility model.

[0051] Refer to Figure 1 and Figure 6, in an alternative embodiment of the present utility model, the weighing device 200 includes a wind shield 210, a crucible 220, a support assembly 230, and a weighing member 240. The wind shield 210 is located on one side of the sampling station 20. The top of the wind shield 210 is provided with a feed inlet. When the sampling assembly 120 is located at the second preset position, the feed inlet is directly below the discharge port of the sampling tube 123, that is, directly below the inclined port 1231. The support assembly 230 is disposed inside the wind shield 210. The crucible 220 is disposed on the support assembly 230 and is directly below the feed inlet. The weighing member 240 is located directly below the support assembly 230. In the case of weighing the coal sample, the weighing member 240 can pass through the support assembly 230 to lift the crucible 220, so as to obtain the mass information of the coal sample.

[0052] Refer to Figure 6 , it can be understood that for the weighing device 200 provided by the present utility model, by providing the wind shield 210, the crucible 220, the support assembly 230, and the weighing member 240 can be covered. In this way, the accuracy of weighing can be prevented from being interfered by air flow, and the coal sample can be prevented from being polluted by dust in the air. In addition, compared with directly placing the crucible 220 on the weighing device 200, by providing the support assembly 230, on the one hand, the influence on the accuracy of the weighing member 240 during the movement of the first handling component to move the crucible 220 can be avoided, and on the other hand, the influence on the accuracy of the weighing device 200 caused by the impact of the falling coal sample can be avoided.

[0053] Continue to refer to Figure 6 , in an alternative embodiment of the present utility model, the support assembly 230 includes a support member 231 and a linear drive member 232. The support member 231 is disposed between the crucible 220 and the weighing member 240. The support member 231 may specifically be a component with an annular structure. The linear drive member 232 is disposed on one side of the support member 231. The linear drive member 232 is used to drive the support member 231 to perform linear reciprocating motion in the vertical direction. It can be understood that in this way, the crucible 220 can also perform reciprocating linear motion in the vertical direction. When the crucible 220 needs to be replaced, the linear drive member 232 lifts the crucible 220 to the top, and the first handling assembly can easily remove and replace the crucible 220. When weighing, the linear drive member 232 moves downward, and the crucible 220 and the support member 231 move downward accordingly. When the crucible 220 moves downward to contact the weighing member 240, the support member 231 will continue to move downward, and the weight of the crucible 220 will be completely transferred to the weighing member 240. In other words, the weighing member 240 can pass through the support assembly 230 to lift the crucible 220 from the support assembly 230. In this way, when the coal sample falls into the crucible 220, the weighing member 240 can directly obtain the mass information of the coal sample.

[0054] It can be understood that in this way, on the one hand, it is convenient for the first handling component to replace the crucible 220; on the other hand, the crucible 220 can be retracted into the wind shield 210 to cooperate with the wind shield 210 to protect the coal sample; on the third hand, compared with directly placing the crucible 220 on the weighing component 240, it can avoid the influence on the accuracy of the weighing component 240 due to the replacement of the crucible 220 and can improve the service life of the weighing component 240.

[0055] In an alternative embodiment of the present invention, the weighing and sampling system further includes a control component, which is electrically connected to the weighing component 240 and the linear drive component 122 respectively. When weighing the coal sample, the control component can obtain the mass information of the coal sample in the crucible 220 in real time through the weighing component 240. By comparing the mass information with the preset mass, the control component can flexibly control the propulsion speed of the linear drive component 122, that is, it can control the amount of coal sample entering the crucible 220 from the sampling pipe 123, and can ensure the accuracy of coal sample sampling; for example, when it is necessary to weigh 10 g of coal sample, when the mass information obtained by the weighing component 240 is equal to 10 g, the control component can reduce the propulsion speed of the linear drive component 122 to 0. In this way, the coal sample in the sampling pipe 123 will not continue to fall into the crucible 220.

[0056] The following shows the working process of the weighing and sampling system provided by the embodiments of the present invention:

[0057] Before sampling, the states of each component of the system: the linear drive 232 is in the maximum lifting state, that is, the support 231 is located at the highest position within the movable range; the sampling seat 121 is located at the top of the lifting component 111 and is in a vertical state, and the output end of the linear drive component 122 retracts, that is, the sampling shaft 124 retracts to the deepest part of the sampling pipe 123; the first handling component places the crucible 220 on the support 231, and at this time, at least part of the structure of the crucible 220 should be located above the feed port of the wind shield 210; the second handling component places the opened coal bottle 10 at the sampling station 20.

[0058] After being ready, the lifting component 111 drives the sampling pipe 123 to move down and insert into the coal bottle 10 to start sampling. As the sampling pipe 123 goes deeper, the coal sample is continuously filled and pressurized into the lumen of the sampling pipe 123. When the sampling pipe 123 is inserted to a certain depth, that is, after reaching the first preset position, the sampling is completed.

[0059] The linear drive 232 descends, driving the support 231 and the crucible 220 to move down into the wind shield 210 until the crucible 220 is completely lifted by the weighing component 240 and separated from the support 231. At this time, the weight of the crucible 220 is completely supported by the weighing component 240, and the weighing component 240 starts to weigh the weight of the crucible 220. After the data is stable, the tare is cleared.

[0060] After the lifting component 111 drives the sampling tube 123 to rise a certain height, the rotating component 112 drives the sampling tube 123 to rotate so that the inclined opening 1231 of the sampling tube 123 is aligned with the feeding port on the wind shield 210, that is, it reaches the second preset position. The lifting component 111 lowers a certain height to make the inclined opening 1231 close to the feeding port; the linear driving component 122 drives the sampling shaft 124 to push the coal sample out of the sampling tube 123, and the weighing member 240 reads the mass of the coal sample falling into the crucible 220 in real time. When the mass of the coal sample reaches the preset mass, the control component controls the linear driving component 122 to stop moving, and the weighing is completed.

[0061] The second handling component transfers the coal bottle 10 out of the weighing and sampling system, and transfers the cleaning bucket 310 to the sampling station 20. The lifting component 111 rises a certain height, and the rotating component drives the sampling tube 123 to rotate to a vertically downward state. The lifting component 111 drives the sampling tube 123 to move down and insert into the cleaning bucket 310. The second scraping ring 320 scrapes the coal sample adhered to the outer wall of the sampling tube 123. At the same time, the linear driving component 122 pushes the sampling shaft 124 and the first scraping ring 1241 to completely push the coal sample in the sampling tube 123 into the cleaning bucket 310. After the cleaning is completed, the lifting component 111 drives the sampling tube 123 to rise to the top of the lifting component 111.

[0062] The linear driving member 232 drives the support member 231 to move upward, thereby driving the crucible 220 to move upward to the outside of the feeding port of the wind shield 210. The first handling component replaces the crucible 220. The second handling component moves the cleaning bucket 310 to the preparation station and moves the next coal bottle 10 to the sampling station 20 to start the cyclic operation.

[0063] It should be noted that the technical solutions in the various embodiments of the present invention can be combined with each other, but the basis for the combination is that those skilled in the art can implement it; when the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist, that is, it does not belong to the protection scope of the present invention either.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A weighing sampling system for analyzing the total moisture content of coal samples, characterized in that: include: A coal bottle (10) is provided at the sampling station (20), and the coal bottle (10) is used to store the coal sample; A sampling device (100), comprising a driving component (110) and a sampling component (120), wherein the driving component (110) is arranged at one side of the sampling station (20), and the sampling component (120) is arranged at the driving component (110), and the driving component (110) is used to drive the sampling component (120) to move, and the sampling component (120) is used to transfer the coal sample from the coal bottle (10) to a weighing device (200), and the weighing device (200) is used to weigh the coal sample; The transport device comprises a first transport component and a second transport component, wherein the first transport component is used to transfer the coal sample weighed by the weighing device (200) out of the weighing sampling system; and the second transport component is used to replace the coal bottle (10).

2. The weighing sampling system for analyzing the total moisture content of coal samples according to claim 1 is characterized in that: The driving assembly (110) comprises a lifting component (111) and a rotating component (112); the lifting component (111) is arranged at one side of the sampling station (20); the rotating component (112) is arranged at the lifting component (111); the sampling assembly (120) is arranged at the rotating component (112); the lifting component (111) and the rotating component (112) are used to drive the sampling assembly (120) to move between a first preset position and a second preset position.

3. The weighing sampling system for analyzing the total moisture content of coal samples according to claim 2 is characterized in that: The sampling assembly (120) comprises a sampling seat (121), a linear driving component (122), a sampling tube (123) and a sampling shaft (124); the sampling seat (121) is connected to the rotating component (112); the linear driving component (122) and the sampling tube (123) are both fixed to the sampling seat (121); the sampling shaft (124) is passed through the sampling tube (123) and is connected to the linear driving component (122); the sampling shaft (124) is adapted to perform reciprocating linear motion along the lumen of the sampling tube (123) under the drive of the linear driving component (122); a first scraping ring (1241) is provided at one end of the sampling shaft (124) away from the linear driving component (122); the first scraping ring (1241) is adapted to abut against the inner wall of the lumen; the first scraping ring (1241) is used to clean the lumen.

4. The weighing sampling system for analyzing the total moisture content of coal samples according to claim 3 is characterized in that: The sampling seat (121) comprises a base body (1211) and a counterweight (1212); the base body (1211) is connected to the rotating component (112); the sampling tube (123) and the sampling shaft (124) are located on one side of the base body (1211); and the counterweight (1212) is located on the other side of the base body (1211).

5. The weighing sampling system for analyzing the total moisture content of coal samples according to claim 3, characterized in that: An end of the sampling tube (123) away from the sampling seat (121) is provided with an oblique opening (1231), the oblique opening (1231) being inclined in a direction away from the weighing device (200), and the oblique opening (1231) being used to guide the coal sample into and out of the sampling tube (123).

6. The weighing sampling system for analyzing the total moisture content of coal samples according to claim 3, characterized in that: It also comprises a cleaning assembly (300). When the coal bottle (10) is moved out of the sampling station (20), the cleaning assembly (300) is suitable for being transferred to the sampling station (20) by the second transport assembly. The cleaning assembly (300) is used to clean the sampling assembly (120).

7. The weighing sampling system for analyzing the total moisture content of coal samples according to claim 6, characterized in that: The cleaning assembly (300) comprises a cleaning barrel (310) and a second scraper ring (320); an opening is provided at the upper end of the cleaning barrel (310); the second scraper ring (320) is arranged at the opening; the inner diameter of the second scraper ring (320) corresponds to the outer diameter of the sampling tube (123); the second scraper ring (320) is used to clean the outer wall of the sampling tube (123).

8. The weighing sampling system for analyzing the total moisture content of coal samples according to any one of claims 3 to 7, characterized in that: The weighing device (200) comprises a wind shield (210), a crucible (220), a support assembly (230) and a weighing piece (240); a feed port is provided on the top surface of the wind shield (210); the support assembly (230) is arranged in the wind shield (210); the crucible (220) is arranged in the support assembly (230) and corresponds to the position of the feed port; the weighing piece (240) is arranged below the support assembly (230); when the coal sample is weighed, the weighing piece (240) is suitable for passing through the support assembly (230) and lifting the crucible (220) from the support assembly (230); the weighing piece (240) is used to obtain quality information of the coal sample.

9. The weighing sampling system for analyzing the total moisture content of coal samples according to claim 8, characterized in that: The support assembly (230) comprises a support member (231) and a linear drive member (232); the support member (231) is arranged between the crucible (220) and the weighing member (240); the linear drive member (232) is arranged on one side of the support member (231); the linear drive member (232) is used to drive the support member (231) to perform linear reciprocating motion in a vertical direction.

10. The weighing sampling system for analyzing the total moisture content of coal samples according to claim 8, characterized in that: It also includes a control component, which is electrically connected to the weighing member (240) and the linear drive component (122) respectively, and based on the mass information, the control component determines the propulsion speed of the linear drive component (122).

Images