CN109520882B

CN109520882B - Coal moisture analysis system

Info

Publication number: CN109520882B
Application number: CN201811430398.7A
Authority: CN
Inventors: 王冠锐; 李鹏; 孙建军; 王莹; 王瑞
Original assignee: Beijing Yunhui Intelligent Technology Co ltd
Current assignee: Beijing Yunhui Intelligent Technology Co ltd
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2024-03-12
Anticipated expiration: 2038-11-28
Also published as: CN109520882A

Abstract

The invention discloses a coal moisture analysis system, relates to the field of coal moisture analysis equipment, and mainly aims to develop a coal moisture analysis system without manual intervention and auxiliary operation in the whole process so as to avoid manual interference on coal samples or data and ensure the authenticity of a test result. The main technical scheme of the invention is as follows: the coal moisture analysis system comprises a cover body, wherein a drying box is arranged in the cover body; the two ends of the conveying mechanism are respectively arranged inside and outside the cover body; the coal sampling mechanism is arranged in the cover body; the crucible feeding mechanism is arranged in the cover body; the manipulator is arranged in the cover body; and the controller is respectively connected with the drying box, the conveying mechanism, the coal sampling mechanism, the crucible feeding mechanism and the mechanical flashlight. The method is mainly used for analyzing the moisture of the coal.

Description

Coal moisture analysis system

Technical Field

The invention relates to the technical field of coal moisture analysis equipment, in particular to a coal moisture analysis system.

Background

Currently, the coal-related industries such as power plants, coal-making plants, steel plants, and the like generally settle accounts for the weight of the coal after moisture removal, so that the water content of the batch of coal becomes an important factor affecting the price of the coal, and therefore, before settling the coal, analysis and inspection of the water content of the coal are generally required.

At present, the analysis of the water content of the coal is usually completed in a laboratory by adopting a designated vessel manually according to a certain flow, and specifically comprises weighing, drying and re-weighing the coal sample, calculating according to a certain calculation formula according to the weighed data to obtain data, and finally inputting the data into a server.

However, the whole process is completed manually, so that the reality of the test result is easily affected due to the fact that the coal sample or data is interfered manually, the transaction price of the coal is affected, and the coal is inconvenient to use.

Disclosure of Invention

In view of the above, the embodiment of the invention provides a coal moisture analysis system, which is mainly used for developing a coal moisture analysis system without manual intervention and auxiliary operation in the whole process so as to avoid manual interference on coal samples or data and further ensure the authenticity of a test result.

In order to achieve the above purpose, the present invention mainly provides the following technical solutions:

the embodiment of the invention provides a coal moisture analysis system, which comprises;

the drying box is arranged in the cover body;

the two ends of the conveying mechanism are respectively arranged inside and outside the cover body and are used for conveying the bottle body containing the coal sample into the cover body;

The coal sampling mechanism is arranged in the cover body and is used for sampling and weighing the coal in the bottle body;

the crucible feeding mechanism is arranged in the cover body and is used for providing a crucible for the coal sampling mechanism to contain and weigh coal samples;

the manipulator is arranged in the cover body and is used for placing the bottle body and the crucible in the coal sampling mechanism, placing the weighed crucible in the drying box for drying, and taking out the dried crucible and placing the crucible in the coal sampling mechanism for weighing; and

the controller is respectively connected with the drying oven, the conveying mechanism, the coal sampling mechanism, the crucible feeding mechanism and the mechanical flashlight, and is used for controlling the respective working states of the crucible feeding mechanism and the mechanical flashlight, calculating the water content of the coal sample according to the weight value fed back by the coal sampling mechanism, and uploading the water content to the server.

Specifically, the coal sampling mechanism includes:

the machine frame is rotatably provided with a turning arm, the turning arm is provided with a sample adding mechanism electrically connected with the controller and a placing part used for placing the bottle body, and the placing part is used for enabling an inlet of the sample adding mechanism to be communicated with the bottle body;

The weighing mechanism is arranged on the frame and used for placing the crucible and weighing the weight value of the coal sample in the crucible;

the first driving mechanism is electrically connected with the controller and is in driving connection with the overturning arm and is used for driving the overturning arm to overturn under the control of the controller so as to enable the bottle body to be inverted, and an outlet of the sample adding mechanism is opposite to the crucible; and

the detection mechanism is electrically connected with the controller and is used for detecting state information of whether the overturning arm overturns or not; the controller is also used for respectively controlling the sample adding mechanism to add the coal sample in the bottle body to the crucible and controlling the sample adding mechanism to stop filling according to the state information fed back by the detection mechanism and the weight value fed back by the weighing mechanism.

Specifically, a throwing port is arranged on the side wall of the cover body; crucible feed mechanism includes:

the crucible casting device comprises a body, wherein a groove with the width larger than the outer diameter of the crucible is formed in the body, one end of the groove is communicated with the casting opening through a casting channel, a through hole is formed in the bottom of the groove, a first rod body and a second rod body with the axes both arranged along the length direction of the groove and provided with a gap are respectively arranged on the opposite side walls of the through hole, and the width of the gap is larger than the thickness of the side wall of the crucible and smaller than the outer diameter of the crucible;

The pushing mechanism is electrically connected with the controller and used for pushing the crucible falling into one end of the groove from the throwing channel to the other end of the groove under the control of the controller.

Further, the coal moisture analysis system further comprises:

the bottle body comprises a bottle body and a bottle cap which is in threaded sealing connection with the bottle body;

the coal moisture analysis system further comprises a cover dismounting mechanism electrically connected with the controller, wherein the cover dismounting mechanism is used for dismounting the bottle cover or mounting the bottle cover under the control of the controller;

the cover dismounting mechanism comprises:

the lifting frame is electrically connected with the controller and used for carrying out lifting movement under the control of the controller;

the rotary body is connected to the top of the lifting frame through a motor electrically connected with the controller, a plurality of relatively movable first clamping jaws are arranged on the rotary body and used for clamping the bottle cap, and the motor is used for driving the rotary body to rotate forwards or reversely under the control of the controller so as to mount the bottle cap or detach the bottle cap; and

The bracket comprises a supporting plate arranged at the bottom of the lifting frame and used for placing the bottle body and a plurality of relatively movable second clamping jaws arranged at the bottom of the lifting frame and arranged at the periphery of the supporting plate, wherein the second clamping jaws are used for clamping the bottle body.

Specifically, the conveying mechanism includes a conveyor belt electrically connected to the controller, the conveyor belt having a gripping position at which the manipulator grips the bottle, and an intermittent feeding device including:

the distance between the first baffle and the second baffle is equal to the outer diameter of the bottle body;

the second driving mechanism is electrically connected with the controller and is respectively in driving connection with the first baffle and the second baffle, and is used for driving the first baffle and the second baffle to stretch and retract continuously and alternately under the control of the controller so as to block the bottle bodies on the conveyor belt, so that only one bottle body is arranged at the grabbing position, and the bottle bodies are separated from other bottle bodies.

Specifically, the second driving mechanism comprises a first rack, a second rack meshed with the first rack through a gear, and a cylinder electrically connected with the controller, wherein the cylinder is in driving connection with the first rack;

The first baffle is connected with the first rack, and the second baffle is connected with the second rack.

Specifically, the manipulator comprises a first claw and a second claw which can move relatively and are used for grabbing objects, and the first claw and the second claw respectively comprise a claw body and a claw root connected with the claw body;

the outline shape of the claw body is matched with the outline shape of the bottle body and is used for grabbing the bottle body;

the first claw is characterized in that a first claw rod is arranged at the claw root of the first claw, two second claw rods are arranged at the claw root of the second claw, the first claw rods and the second claw rods are located on the same side of the manipulator, the connecting lines of the first claw rods and the second claw rods form isosceles triangles, and the first claw rods and the second claw rods are used for grabbing the crucible.

Further, the coal moisture analysis system further comprises:

the buffer storage rack is arranged in the cover body, at least two placing plates which are arranged in a stacked mode are arranged on the buffer storage rack, at least two placing grooves are formed in each placing plate, and the placing grooves are used for temporarily storing the bottle bodies.

Further, the coal moisture analysis system further comprises:

the cabinet body is arranged at the bottom of the cover body, and is provided with drawers and obliquely arranged channels;

The inlet of the drawer is positioned in the cover body, and the push-pull end of the drawer is positioned outside the cabinet body;

the inlet of the channel is positioned in the cover body, the outlet of the channel is positioned outside the cabinet body, and the inlet position of the channel is higher than the outlet position of the channel;

the push-pull end of the drawer and the outlet of the channel are positioned on the same side of the cabinet body, and the push-pull end of the drawer and the outlet of the channel and the end of the conveying mechanism are positioned on opposite sides of the system.

Further, the coal moisture analysis system further comprises:

the camera is arranged at the top of the cover body and is electrically connected with the controller and used for shooting the working state of the coal moisture analysis system.

The cover body is a transparent cover body made of transparent materials, a door body for opening or closing the cover body is arranged on the cover body, and an alarm device electrically connected with the controller is arranged on the door body.

By means of the technical scheme, the coal sampler has at least the following beneficial effects:

according to the coal moisture analysis system provided by the embodiment of the invention, when the moisture analysis and inspection are performed on the coal quality, the conveying mechanism is controlled by the controller to convey the bottle body containing the coal sample into the cover body, the crucible feeding mechanism provides the crucible for the coal sampling mechanism, and the mechanical arm sequentially places the bottle body and the crucible on the coal sampling mechanism, so that the coal sampling mechanism samples and weighs the coal in the bottle body by using the crucible, the mechanical arm can also place the weighed crucible into the drying box for drying, take out the crucible and place the crucible on the coal sampling mechanism again for weighing after the drying is finished, and meanwhile, the controller can calculate the final water content according to the weight values of the coal sample before and after the drying fed back by the coal sampling mechanism, and upload the calculated water content to the server. Therefore, the technical scheme provided by the embodiment of the invention realizes that the whole coal moisture analysis process is automatically completed by matching with each mechanism, the controller automatically analyzes the calculation result and uploads the result to the server, no manual intervention and auxiliary operation are performed in the whole process, and meanwhile, the whole system is arranged in the cover body, so that the interference of human factors on coal samples or data is effectively avoided, the authenticity of the detection result is ensured, and the use is convenient.

Drawings

FIG. 1 is a schematic structural diagram of a coal moisture analysis system according to an embodiment of the present invention at a first view angle;

fig. 2 is a schematic structural diagram of a coal moisture analysis system according to an embodiment of the present invention at a first view angle;

FIG. 3 is a schematic diagram of the coal sampling mechanism in FIG. 1 or FIG. 2;

FIG. 4 is a schematic diagram of the sample loading mechanism of FIG. 3;

FIG. 5 is a schematic diagram of the structure of the invert arm of the coal sampling mechanism of FIG. 3 after inversion;

FIG. 6 is a schematic view of the crucible loading mechanism of FIG. 1 or FIG. 2 in an upright position;

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6;

FIG. 8 is a schematic view of the crucible loading mechanism of FIG. 1 or FIG. 2 in a reverse-buckling state;

FIG. 9 is a cross-sectional view taken along line A-A of FIG. 8;

FIG. 10 is a schematic view of the cover removing mechanism of FIG. 1 or FIG. 2;

FIG. 11 is a schematic view of the structure of the bracket of FIG. 10;

FIG. 12 is a schematic view of the intermittent feeding device of the conveying mechanism of FIG. 1 or FIG. 2;

FIG. 13 is a schematic view of the intermittent feed device of the conveyor of FIG. 1 or FIG. 2 with the first baffle extending to the conveyor;

FIG. 14 is a schematic view of the gripper of the manipulator of FIG. 1 or FIG. 2 in a first view;

FIG. 15 is a schematic view of the structure of the gripper shown in FIG. 14 with a bottle and crucible disposed therein;

FIG. 16 is a schematic view showing the structure of the gripper shown in FIG. 14 when gripping a crucible;

FIG. 17 is a schematic view of the gripper of the manipulator of FIG. 1 or FIG. 2 in a second view;

FIG. 18 is a schematic view of a driving portion of a gripper of the manipulator of FIG. 1 or FIG. 2;

fig. 19 is a schematic view of the structure of the controller of fig. 1 or fig. 2 electrically connected to each other.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present embodiment and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present embodiment.

As shown in fig. 1, 2 and 19, the embodiment of the invention provides a coal moisture analysis system, which comprises a cover body 1, wherein a drying oven 2 is arranged in the cover body 1; the two ends of the conveying mechanism 3 are respectively arranged inside and outside the cover body 1 and are used for conveying the bottle body containing the coal sample into the cover body 1; the coal sampling mechanism 4 is arranged in the cover body 1 and is used for sampling and weighing the coal in the bottle body; the crucible feeding mechanism 5 is arranged in the cover body 1 and is used for providing a crucible for the coal sampling mechanism 4 to contain and weigh coal samples; a manipulator 6, the manipulator 6 is arranged in the cover 1, and is used for placing the bottle body and the crucible in the coal sampling mechanism 4, placing the weighed crucible in the drying oven 2 for drying, and taking out the dried crucible and placing the crucible in the coal sampling mechanism 4 for weighing; and the controller 7 is respectively and electrically connected with the drying oven 2, the conveying mechanism 3, the coal sampling mechanism 4, the crucible feeding mechanism 5 and the manipulator 6, and is used for controlling the respective working states, calculating the water content of the coal sample according to the weight value fed back by the coal sampling mechanism and uploading the water content to the server. Wherein reference numerals "13" and "14" in the respective drawings represent the bottle body and the crucible, respectively.

The embodiment of the invention is specifically described below by the principle and the working process of the coal moisture analysis system. The drying oven 2 may be any type of drying oven 2, so long as drying of coal can be achieved, however, for convenience of control, a driving device, such as a cylinder, electrically connected to the controller 7 may be disposed on the door body of the drying oven 2, so that the drying oven 2 may automatically open or close the door under the control of the controller 7 to achieve placement of the crucible. Meanwhile, the portion of the conveying mechanism 3 located outside the cover 1 may be used as a bottle placing portion 312 for a testing person to place bottles, wherein, for convenience in control, a sensor, such as an optical fiber sensor, which is electrically connected with the controller 7 and is used for detecting whether any bottle is placed, may be disposed at the bottle placing portion 312, so that after the bottle is placed at the bottle placing portion 312, the controller 7 may start to control the conveying mechanism 3 to start according to information fed back by the sensor, so that the conveying mechanism 3 conveys the bottle into the cover 1. Moreover, the manipulator 6 may employ any type of manipulator 6 as long as the gripper can be rotated and retracted under the control of the controller 7; in order to facilitate the operation of the whole system, the arrangement positions of the mechanisms in the cover body 1 can be as follows: the manipulator 6 is arranged at the center position, and the drying box 2, the conveying mechanism 3, the coal sampling mechanism 4, the crucible feeding mechanism 5 and the like are arranged at the periphery of the manipulator 6.

The working process of the coal moisture analysis system can be as follows: the laboratory staff places the bottle that holds the coal sample in the bottle place of transport mechanism 3, the sensor sends the signal to controller 7, controller 7 controls transport mechanism 3 carries the bottle to cover 1 in, at this moment, controller 7 controls manipulator 6 snatchs the bottle that conveys to the assigned position, and place the bottle in the relevant position of coal sampling mechanism 4, then, manipulator 6 snatchs the crucible from crucible feed mechanism 5 and places in the relevant position of coal sampling mechanism 4, the weight value of weighing the crucible by coal sampling mechanism 4 and sends this value to controller 7, then fill a certain amount of coal sample in the crucible by coal sampling mechanism 4, weigh this weight value of the crucible that holds the coal sample simultaneously, and send this weight value to controller 7, simultaneously, controller 7 controls drying cabinet 2 open the door body, place the drying cabinet 2 in the crucible that weighs, open by controller 7 after the drying, take out the crucible and place on sampling mechanism 4 again by manipulator 6, and weigh the controller 7 before weighing the water content value, calculate the water content to obtain the formula before weighing the controller 7. The calculation formula may be a formula for calculating the water content in the prior art.

Specifically, the coal sampling mechanism 4 has various structural forms, as long as the coal sample in the bottle body can be filled into the crucible and the crucible can be weighed, referring to fig. 3 and 5 and referring to fig. 1, in an alternative embodiment, the coal sampling mechanism 4 may include a frame 41, a turning arm 42 is rotatably disposed on the frame 41, a sample feeding mechanism 43 electrically connected with the controller 7 and a placing part 44 for placing the bottle body are disposed on the turning arm 42, and the placing part 44 is used for communicating the inlet of the sample feeding mechanism 43 with the bottle body; the weighing mechanism 45 can be an electronic balance, and the weighing mechanism 45 is arranged on the frame 41 and is used for placing a crucible and weighing the weight value of a coal sample in the crucible; the first driving mechanism 46, which may be a servo motor, is electrically connected to the controller 7 and is in driving connection with the turning arm 42, and is used for driving the turning arm 42 to turn under the control of the controller 7, so that the bottle body is inverted, and the outlet of the sampling mechanism 43 is opposite to the crucible; and a detection mechanism electrically connected to the controller 7 for detecting status information of whether the flipping arm 42 is flipped; the controller 7 is further configured to sequentially control the sampling mechanism 43 to fill the crucible with the coal sample in the bottle body, and control the sampling mechanism 43 to stop filling, according to the state information fed back by the detection mechanism and the weight value fed back by the weighing mechanism 45.

Specifically, when sampling and weighing are performed, the first driving mechanism 46 may drive the turning arm 42 to turn over, at this time, the detecting mechanism may detect whether the turning arm 42 turns over in place, until the turning arm 42 turns over in place, that is, when the bottle body is inverted, the sampling mechanism 43 is located below the bottle body and the outlet of the sampling mechanism is opposite to the inlet of the crucible, a control signal is sent to the controller 7, after the controller 7 receives the control signal, the controller 7 controls the sampling mechanism 43 to operate, so that the coal sample in the bottle body is injected into the crucible, so that the coal sample in the crucible is gradually increased and weighed in real time by the weighing mechanism 45, and when the controller 7 determines that the value of the coal sample in the crucible reaches the preset value, the sampling mechanism 43 is controlled to stop the injection, and the automatic sampling, filling and weighing processes of the coal sample are completed. Of course, after the coal sampling mechanism 4 finishes sampling and filling, the controller 7 controls the turning arm 42 to drive the sampling mechanism 43 and the bottle body to reset;

the structure of the sample adding mechanism 43 may be various, as long as the sample adding mechanism can be used for adding the coal sample in the bottle body to the crucible after the overturning arm 42 overturns, referring to fig. 4, in order to make the structure of the sample adding mechanism 43 simpler and easy to operate, the sample adding mechanism 43 may include a containing chamber 431, the containing chamber 431 has an inlet and an outlet, in order to facilitate the coal sample in the bottle body to smoothly fall into the containing chamber 431 after the overturning arm 42 overturns, a funnel 432 may be communicated at the inlet of the containing chamber 431, so that the inlet of the containing chamber 431 is communicated with the outlet of the bottle body through the funnel 432, and the inlet of the containing chamber 431 is communicated with the outlet of the bottle body; a first pushing rod 433 disposed in the receiving chamber 431 and provided thereon with a first spiral vane 4331 spirally disposed along a length direction thereof, one end of the first spiral vane 4331 being opposite to an inlet of the receiving chamber 431 and the other end being opposite to an outlet of the receiving chamber 431; and a driving mechanism respectively connected with the controller 7 and the first pushing rod 433, for driving the first pushing rod 433 to rotate or stop driving along the first direction according to the control instruction of the controller 7 so as to push out the coal sample in the accommodating chamber 431. If the water content of the coal sample is large, the coal sample is easy to be adhered into a block shape due to the large viscosity, and the block-shaped coal sample is easy to block the accommodating chamber 431, so that the sampling mechanism 43 cannot work, in order to solve the problem, the sampling mechanism 43 may further comprise a second pushing rod 434, the second pushing rod 434 is disposed in the accommodating chamber 431 and parallel to the first pushing rod 433, the second pushing rod 434 is provided with a second helical blade 4341 spirally disposed along the length direction thereof, and the second helical blade 4341 and the first helical blade 4331 are mutually staggered; the input end of the transmission mechanism is connected with the driving mechanism, and the output end of the transmission mechanism is connected with the second pushing rod 434; the driving mechanism drives the second push lever 434 to rotate through a transmission mechanism. The second helical blades 4341 and the first helical blades 4331 are arranged in a staggered manner, that is, each tooth of the second helical blades 4341 is located between two adjacent teeth of the first helical blades 4331 and is close to the first pushing rod 433, and each tooth of the first helical blades 4331 is located between two adjacent teeth of the second helical blades 4341, so that the first helical blades 4331 or the second helical blades 4341 can smash the blocky coal sample located between two adjacent teeth of each other in the rotating process, the coal sample can be smoothly withdrawn from the accommodating chamber 431, the accommodating chamber 431 is effectively prevented from being blocked, and the normal operation of the sampling machine 43 is ensured. The driving mechanism drives the second pushing rod 434 to rotate through the transmission mechanism, specifically, in order to make the structure of the sample adding mechanism 43 simpler, the transmission mechanism may include a driving gear 435 and a driven gear 436, where the driving gear 435 may be fixed on the first pushing rod 433 through a snap spring, and the driven gear 436 may be fixed on the second pushing rod 434 through another snap spring, and the two may be engaged and connected, so that the first pushing rod 433 and the second pushing rod 434 relatively rotate, and of course, a gear adding manner may also be adopted, so that the first pushing rod 433 and the second pushing rod 434 rotate in the same direction, which is not limited herein. In addition, the number of the second push rods 434 may be plural, so that it may better function to prevent the blocking of the receiving chamber 431. The placement part 44 may be formed by a cylinder provided on the tilting arm 42 and a support provided at the output end of the cylinder for holding the bottle between the sampling mechanism 43 and the support under the drive of the cylinder. And the detection mechanism may include a photoelectric sensor disposed on the support and a blocking sheet disposed on the turning arm 42 for blocking the light signal emitted by the photoelectric sensor, i.e. when the turning arm 42 turns in place, the blocking sheet just blocks the light emitted by the photoelectric sensor, so that the photoelectric sensor sends a control signal to the controller 7.

Further, the outlet of the sampling mechanism 43 may be slidably provided with a baffle, that is, the outlet of the accommodating chamber 431 may be slidably provided with a baffle, specifically, reference may be made to a gate valve structure; and the coal sampler may further comprise a third driving mechanism connected with the controller 7 and the baffle respectively, for driving the baffle to close or open the outlet of the accommodating chamber 431; the controller 7 may be further configured to control the third driving mechanism to drive the shutter to open the outlet of the accommodating chamber 431 when the first status information is that the flipping arm 42 has flipped; and the controller 7 may be further configured to control the third driving mechanism to drive the shutter to close the outlet of the accommodating chamber 431 when the weight value is equal to the preset value. By the arrangement of the baffle plate, the coal sample in the accommodating chamber 431 flows out through the outlet after the filling is finished or before the filling is started, so that the weighing result is prevented from being influenced. Specifically, the third driving mechanism may include a cylinder and a solenoid valve in communication with the cylinder, and the solenoid valve may be connected to the controller 7. That is, when the controller 7 receives the control signal sent by the detection mechanism and indicating that the turning arm 42 has turned in place, the electromagnetic valve can be controlled to be opened, so that the air cylinder drives the baffle plate to open the outlet of the accommodating chamber 431, and then the sampling mechanism 43 is controlled to operate, and when the sample loading is finished, that is, when the controller 7 determines that the weight value of the weight information sent by the weighing mechanism 45 is equal to the preset value, the electromagnetic valve can be controlled to be closed, so that the air cylinder is deflated, so that the baffle plate seals the outlet of the accommodating chamber 431, and the weighing accuracy of the weighing mechanism 45 is further ensured.

In order to facilitate the coal sample to fall into the accommodating chamber 431 smoothly after the turnover arm 42 turns over, a funnel may be connected to the inlet of the accommodating chamber 431, so that the inlet of the accommodating chamber 431 is connected to the outlet of the container through the funnel. Wherein, the inclination angle of the conical part of the funnel can be designed according to the viscosity of the coal sample. In addition, in order to prevent the coal sample from being stuck in the funnel, a first air inlet and a second air inlet can be respectively arranged on two opposite sides of the funnel, and particularly when the device is implemented, air flows can be filled into the funnel from two opposite directions through the first air inlet and the second air inlet in a mutually alternating manner, so that air vibration is generated in the funnel, the coal sample stuck in the funnel can smoothly enter the accommodating chamber 431, and the sampling mechanism 43 can smoothly fill the coal sample. In addition, in order to enable the coal sample to smoothly flow out of the container and prevent the weighing mechanism from accurately weighing the coal sample from being influenced by external factors, a conical pipe body can be communicated at the outlet of the accommodating chamber 431, and the inner diameter of the pipe body is gradually reduced from the outlet of the accommodating chamber 431, so that the pipe body can play a better guiding role on the flowing out of the coal sample, and the flowing out of the coal sample is facilitated; the end part of the pipe body 313 can be connected with a shield, the shield can cover the weighing mechanism and the container, and after the overturning arm 42 overturns, the shield can cover the weighing mechanism and the container, so that the weighing accuracy of the weighing mechanism is effectively prevented from being influenced by external factors.

Specifically, the controller 7 is further configured to control the driving mechanism to drive the turning arm 42 to turn to the initial position after the driving mechanism is controlled to stop driving, and then control the driving mechanism to drive the first pushing rod to rotate along the second direction, so as to recycle the residual coal sample in the accommodating chamber 431 to the container; the first direction and the second direction are opposite. When the controller 7 controls the sample adding mechanism 43 to stop adding, i.e. controls the driving mechanism to stop driving, the controller 7 can control the driving mechanism to drive the turning arm 42 to turn to the initial position, so that the sample adding mechanism 43 is positioned above the container, the container is upright, and then control the driving mechanism to drive the first pushing rod to rotate along the direction opposite to the first direction, so that the residual coal sample in the accommodating chamber 431 can move from the outlet end to the inlet end of the accommodating chamber 431 under the reverse spiral pushing of the first spiral blade until flowing into the container, thereby realizing the recovery of the residual coal sample and avoiding the waste of the coal sample.

Specifically, an air suction port and a third air intake port communicating with the inside thereof may be further provided on the side wall of the accommodating chamber 431; the coal sampler may further include an exhaust fan and a gas tank filled with high-pressure gas, which are respectively connected with the controller 7, wherein an inlet of the exhaust fan is communicated with the air suction port, and an outlet of the gas tank is communicated with the third air inlet; wherein, the controller 7 can be connected with the high-pressure gas tank through an electromagnetic valve; the controller 7 is also used for controlling the suction fan to form negative pressure in the accommodating chamber 431 and controlling the air tank to charge high-pressure air flow into the accommodating chamber 431 after the negative pressure is formed. Through the setting of air exhauster and the gas pitcher that is equipped with high-pressure gas, realized when the residual coal sample in the accommodation chamber 431 is retrieved and is finished, in order to further clear up the residual coal sample in the accommodation chamber 431, in order to avoid mutual pollution between the different batch coal sample, controller 7 can control the air exhauster and start, make the air exhauster pass through induction port 315 and make in the accommodation chamber 431 form the negative pressure, then controller 7 can also control the solenoid valve and open, make the high-pressure gas pitcher fill the high-pressure air current to the accommodation chamber in order to make the residual coal sample in the accommodation chamber 431 follow the negative pressure and flow away, realize cleaning the accommodation chamber 431, guaranteed that no residual coal sample in the accommodation chamber 431 of the mechanism 43 has not had the residual coal sample in the accommodation chamber 431 of different batch coal sample after the sample weighing at every turn, effectively avoided mutual pollution between the different batch coal sample. The controller 7 may determine whether the recovery of the residual coal sample in the accommodating chamber 431 is completed by recording the number of turns of the reverse rotation of the first push rod, that is, when the controller 7 determines that the number of turns of the reverse rotation of the first push rod reaches a preset number of turns, the controller may control the start of the exhaust fan, and after the start of the exhaust fan for a preset time, the electromagnetic valve may be controlled to be opened, so that the high-pressure air tank fills the accommodating chamber 431 with high-pressure air flow, and of course, the preset number of turns is understood as that when the first push rod reversely rotates to the preset number of turns, the recovery of the residual coal sample in the accommodating chamber 431 is completed; the predetermined time is understood to be when the suction fan is operated for the predetermined time, and the negative pressure is formed in the accommodating chamber 431.

Specifically, the number of the third air inlets may be plural, the plurality of third air inlets may be uniformly distributed on two sides of the accommodating chamber, and each third air inlet may correspond to a position between adjacent teeth of the first spiral blade or the second spiral blade, so that high-pressure air flow entering through each third air inlet may wash the surface of the corresponding spiral blade, meanwhile, the number of electromagnetic valves connected to the air tank may be plural, or a plurality of multi-position multi-electromagnetic valves are selected to control opening or closing of the corresponding third air inlet, so that the controller 7 may alternately open each third air inlet according to a certain direction through control of the electromagnetic valve, so that the air tank 15 may alternately fill high-pressure air flow into the accommodating chamber through the alternately opened third air inlet, thereby forming gas oscillation in the accommodating chamber 431, so that a coal sample adhered in the accommodating chamber may fall off and flow along with a negative pressure direction, and of course, a collecting container communicating with the accommodating chamber may be provided, so that residual coal sample oscillated may be sucked into the collecting container along with the negative pressure, thereby completing cleaning of the residual coal sample in the accommodating chamber.

Further, the coal sampler also comprises a coal sample separator which is communicated with the exhaust fan and is used for separating and collecting the coal sample in the air flow pumped by the exhaust fan.

Specifically, referring to fig. 2, a delivery port 11 is provided on a side wall of the cover 1, and the delivery port 11 may be recessed on the surface of the cover 1; the crucible feeding mechanism 5 has various structural forms as long as the feeding of the crucible can be realized, referring to fig. 6 to 9 and referring to fig. 2, in an alternative embodiment, the crucible feeding mechanism 5 may include a body 51, a groove 511 with a width larger than the outer diameter of the crucible is arranged on the body 51, one end of the groove 511 is communicated with the feeding port 11 through a feeding channel 52, a through hole 512 is arranged at the bottom of the groove 511, and a first rod 53 and a second rod 54 with axes both arranged along the length direction of the groove 511 and having a gap are respectively arranged at two opposite side walls of the through hole 512, and the width of the gap is larger than the thickness of the side wall of the crucible and smaller than the outer diameter of the crucible; a pushing mechanism 55 electrically connected to the controller 7 for pushing the crucible dropped from the delivery passage 52 into one end of the recess 511 to the other end of the recess 511 under the control of the controller 7. The body 51 may be in a plate structure, and the pushing mechanism 55 may include a pushing plate 551 slidably connected to the surface of the body 51, and an air cylinder 552 drivingly connected to the pushing plate 551 and electrically connected to the controller 7, specifically, when the crucible is fed, an inspector may throw the crucible into the throwing channel 52 through the throwing port 11, the inner diameter of the throwing channel 52 may be slightly larger than the outer diameter of the crucible, so that the crucible may drop to one end of the groove 511 under the action of gravity, and meanwhile, the controller 7 controls the air cylinder 552 to push the pushing plate 551 to move, so that the pushing plate 551 pushes the crucible to move to the other end of the groove 511, and due to the arrangement of the first rod 53 and the second rod 54, when the crucible falls to the groove 511 in an upright state, the pushing plate 551 can push the crucible to reach the other end of the groove 511 through the through holes 512 by the first rod 53 and the second rod 54, so as to be grabbed by the manipulator 6, as shown in fig. 6 and 7; when the crucible falls to the groove 511 in the reverse-buckling state, referring to fig. 8 and 9, the crucible can fall from the groove 511 from the gap under the pushing of the push plate 551 without reaching the other end of the groove 511, that is, the crucible feeding mechanism 5 has the function of recognizing the forward and reverse directions of the crucible, so that the manipulator 6 can grasp the crucible placed in the forward direction and place the crucible on the coal sampling mechanism 4 for sampling, and the use is more convenient.

In order to prevent the coal sample from being disturbed outside the cover body 1, the bottle body can comprise a bottle body and a bottle cap which is connected with the bottle body in a threaded sealing way. In order to facilitate the coal sampling mechanism 4 to sample the coal in the bottle, referring to fig. 1, the coal moisture analysis system further comprises a cap dismounting mechanism 8 electrically connected with the controller 7, the cap dismounting mechanism 8 is used for dismounting or mounting the bottle cap under the control of the controller 7, and the setting position of the cap dismounting mechanism 8 in the cover body 1 can be the periphery of the manipulator 6 as other mechanisms are arranged, and can be adjacent to the coal sampling mechanism 4. After the bottle body is sent to the appointed position in the cover body 1 through the conveying mechanism 3, the controller 7 controls the manipulator 6 to grasp the bottle body and place the bottle body on the cover dismounting mechanism 8, the bottle cover of the bottle body is dismounted, after the bottle cover is dismounted, the manipulator 6 places the bottle body in the coal sampling mechanism 4 for sampling, namely, the opening of the bottle body is communicated with the inlet of the sampling mechanism 43.

Specifically, the cover removing mechanism 8 may have various structural forms, as long as the bottle cap of the bottle body can be screwed under the control of the controller 7, referring to fig. 10 and 11 and referring to fig. 1, in an alternative embodiment, the cover removing mechanism 8 may include a lifting frame 81, where the lifting frame 81 is electrically connected to the controller 7, and the lifting frame 81 is used for performing lifting movement under the control of the controller 7; the rotating body 82 is connected to the top of the lifting frame 81 through a motor 83 electrically connected with the controller 7, a plurality of relatively movable first clamping jaws 821 are arranged on the rotating body 82, the plurality of first clamping jaws 821 are used for clamping the bottle cap, and the motor 83 is used for driving the rotating body 82 to rotate forwards or reversely under the control of the controller 7 so as to mount the bottle cap; the bracket 84, the bracket 84 includes a supporting plate 841 disposed at the bottom of the lifting frame 81 for placing the bottle body, and a plurality of relatively movable second clamping jaws 842 disposed at the bottom of the lifting frame 81 and arranged at the periphery of the supporting plate 841, wherein the plurality of second clamping jaws 842 are used for clamping the bottle body. Specifically, when the bottle cap is disassembled and assembled, the manipulator 6 places the bottle body on the supporting plate 841 of the bracket 84, the first clamping jaws 821 clamp the bottle cap, the second clamping jaws 842 clamp the bottle body, the controller 7 can control the motor 83 to drive the rotating body 82 to rotate reversely, and meanwhile, the lifting frame 81 rises to screw the bottle cap off, and of course, the controller 7 can also control the motor 83 to drive the rotating body 82 to rotate positively, and meanwhile, the lifting frame 81 descends to screw the bottle cap and the bottle body. Wherein, the supporting plate 841 may be circular and is coaxially arranged with the plurality of second clamping jaws 842, when the plurality of second clamping jaws 842 clamp the bottle body, the bottle body with deviation of the placement position can be forcedly corrected; the lifting frame 81 can be a pneumatic lifting frame 81, and the lifting movement of the lifting frame 81 is realized by controlling air flow and air pressure so as to compensate the lifting movement caused by threads when the bottle cap rotates; while the number of the first clamping jaw 821 and the second clamping jaw 842 can be 3 respectively, and their respective relative movements can be realized by the controller 7 controlling the extension and retraction of the air cylinder 552; meanwhile, in order to increase the friction force between the clamping jaw and the bottle body during screwing, a plurality of anti-slip rubbers 85 can be respectively arranged on the clamping surfaces of the first clamping jaw 821 and the second clamping jaw 842 in a strip-shaped embedded installation mode, so that the friction force between the clamping jaw and the bottle body can be increased, and the connection strength between the anti-slip rubbers and the clamping jaw can be improved.

In order to facilitate gripping of the bottles by the manipulator 6, see fig. 1, 12 and 13, the conveying mechanism 3 may comprise a conveyor belt 31 electrically connected to the controller 7, the conveyor belt 31 being used for conveying the bottles into the cover 1, the conveyor belt 31 having a gripping position 311 for the manipulator 6 to grip the bottles, the gripping position 311 may be a position of an end of the conveyor belt 31 located at one end of the cover 1, the intermittent feeding device 32 may be located adjacent to the gripping position 311, and may include a first baffle 321 and a second baffle 322 which are arranged opposite to each other, and a distance between the first baffle 321 and the second baffle 322 is equal to an outer diameter of the bottles; and a second driving mechanism 323, wherein the second driving mechanism 323 is electrically connected with the controller 7, is respectively in driving connection with the first baffle 321 and the second baffle 322, and is used for driving the first baffle 321 and the second baffle 322 to stretch and retract continuously and alternately under the control of the controller 7 so as to block the bottle bodies on the conveyor belt 31, so that only one bottle body is arranged at the grabbing position 311, and the bottle bodies are separated from other bottle bodies. As used herein, "uninterrupted alternating telescoping" is understood to mean: the second barrier 322 is retracted while the first barrier 321 is extended, and the second barrier 322 is extended while the first barrier 321 is retracted. By arranging the intermittent feeding device 32, the intermittent feeding device 32 can continuously and alternately stretch out and draw back the first baffle 321 and the second baffle 322 under the control of the controller 7, namely, when the first baffle 321 stretches out and draws back to the conveyor belt 31, the first baffle 321 can block other bottles except the grabbing position 311, only one bottle is arranged at the grabbing position 311, the bottle is separated from the other bottles, the current bottle at the position 311 to be grabbed is removed, the other bottle moves to the grabbing position 311, meanwhile, the first baffle 321 is retracted, the second baffle 322 stretches out and can block the other bottles except the bottle at the grabbing position 311, the bottle at the grabbing position 311 is separated from the other bottles, and the bottles circulate sequentially, so that the manipulator 6 can easily grab the bottle at the grabbing position 311 without touching the other bottles, and meanwhile, the stretching of the respective baffles cannot damage the bottle due to the fact that the distance between the first baffle 321 and the second baffle 322 is equal to the outer diameter of the bottle.

The second driving mechanism 323 has various structural forms as long as the driving of the first baffle 321 and the second baffle 322 to perform uninterrupted alternating expansion and contraction can be realized, and in an alternative embodiment, the second driving mechanism 323 can include a first rack 3231, a second rack 3233 meshed with the first rack 3231 through a gear 3232, and a cylinder 3234 electrically connected with the controller 7, wherein the cylinder 3234 is in driving connection with the first rack 3231; the first barrier 321 is connected to a first rack 3231, and the second barrier 322 is connected to a second rack 3233. Because the first rack 3231 and the second rack 3233 are engaged and connected through the gear 3232, the air cylinder 3234 continuously reciprocates under the control of the controller 7, so that the first baffle 321 and the second baffle 322 can continuously and alternately stretch and retract to block corresponding bottle bodies on the conveyor belt 31, and the bottle body conveying device is simple in structure and easy to realize. In order to avoid the damage of the exposed parts and make the structure more compact and beautiful, the cylinder 3234, the first rack 3231, the gear 3232 and the second rack 3233 can be arranged in a box 324, meanwhile, a supporting plate 325 is arranged in the box 324, the cylinder 3234 is connected with the supporting plate 325, the first rack 3231 and the second rack 3233 respectively pass through the sliding holes on the supporting plate 325 to be connected with the first baffle 321 and the second baffle 322 and can slide in the sliding holes, so as to realize the supporting and fixing of the supporting plate 325 to the parts. Specifically, whether the cylinder 3234 is extended or retracted in place may be informed of the controller 7 by a sensor provided thereon.

Since the manipulator 6 grips both the bottle and the crucible, however, in general, the outer diameter of the bottle is larger than the outer diameter of the crucible, which results in inconvenience in gripping of the manipulator 6, in order to solve this problem, referring to fig. 14 to 18, in an alternative embodiment, the manipulator 6 may include a first jaw 61 and a second jaw 62 that are relatively movable and are used for gripping an object, and the first jaw 61 and the second jaw 62 may include a jaw body 611 and a jaw root 612 connected to the jaw body 611, respectively; the outline shape of the claw body 611 is matched with the outline shape of the bottle body, such as a concave shape of arc or multi-section non-smooth transition connection, meanwhile, in order to increase the friction force, a plurality of anti-slip rubbers 6111 can be respectively arranged on the inner walls of the two claw bodies 611 in a strip-shaped embedded installation mode, so that the friction force between the claw bodies 611 and the bottle body can be increased, the connection strength between the anti-slip rubbers 6111 and the claw bodies 611 can be improved, and the claw bodies 611 are matched with each other to firmly grasp the bottle body; moreover, a first claw rod 613 and a second driving mechanism may be disposed at the claw root 612 of the first claw, two second claw rods 614 may be disposed at the claw root 612 of the second claw, or two first claw rods 613 and second driving mechanisms may be disposed at the claw root 612 of the first claw 61, and a second claw rod 614 may be disposed at the claw root 612 of the second claw, and meanwhile, the first claw rod 613 and the second claw rod 614 are located at the same side of the manipulator 6 and form an isosceles triangle, so that the first claw rod 613 and the second claw rod 614 may form three-point centering when the first claw 61 and the second claw 62 are relatively close, thereby realizing stable gripping of the crucible, that is, the claw of the manipulator 6 may be used for gripping the bottle and the crucible through two different parts, respectively, thereby facilitating gripping of the bottle and the crucible by the manipulator 6. In addition, a position pointer 63 may be further disposed on the first claw 61 or the second claw 62 to detect the clamping position of the bottle body, so as to further realize stable gripping of the bottle body. Specifically, referring to fig. 18, the relative movement of the first claw 61 and the second claw 62 may be achieved by relatively arranging the first rail 64 and the second rail 65 on the manipulator 6, simultaneously slidingly connecting the first rail 64 and the second rail 65 with the first slider 66 and the second slider 67, respectively connecting the first rack 68 and the second rack 69 meshed and connected by the gear 615 on the first slider 66 and the second slider 67, further comprising a cylinder 610 drivingly connected with the first rack 68 and electrically connected with the controller 7, and the first claw 61 and the second claw 62 are respectively connected with the first slider 66 and the second slider 67, so that when the first rack 68 is driven to move together with the first slider 66 by the cylinder 610, the second rack 69 is driven to move together with the second slider 67 reversely by the gear 3232, and further, the first claw 61 and the second claw 62 are mutually close or separated, that is, the grabbing or releasing of the manipulator 6 is achieved, and the structure is simple and easy to implement.

In general, at least four groups of data are required to be tested for one test, wherein every two groups of data are test data of the same coal sample, namely, a conveying mechanism 3 is required to convey four bottles filled with the two coal samples into a cover body 1, in order to ensure the accuracy of test results, a database is required to compare test results of the coal samples in the bottles filled with the same coal sample, if the difference of the data results is large, the test is usually required to be carried out again, according to national standard requirements, if the moisture of the test results is less than 10%, the difference of the test data results of the same coal sample is less than 0.2%, the test results of the sample are considered to be correct, if the moisture of the test results is more than 10%, the difference of the test data results of the same coal sample is less than 0.5%, and if the test results of the sample are not within the range, the test is required to be re-tested. Referring to fig. 1 or 2, for convenience of operation, the coal moisture analysis system further includes a buffer rack 9, the buffer rack 9 may be disposed in the cover 1, and its specific disposition may be disposed on the periphery of the manipulator 6 as in other mechanisms, and may be located between the conveying mechanism 3 and the drying oven 2, at least two disposition plates 91 disposed in a stacked manner are disposed on the buffer rack 9, and at least two disposition grooves 911 are disposed on each disposition plate 91, where the disposition grooves 911 are used for temporarily holding the bottles. Through setting up of buffer memory frame 9, send into the cover body 1 in proper order with four at least bottles in transport mechanism 3, can be earlier by manipulator 6 place the bottle in proper order on buffer memory frame 9, then snatch a bottle and place to dismouting lid mechanism 8 back of tearing open by manipulator 6, place again and take a sample weighing in coal sampling mechanism 4, wait to take a sample and weigh after ending, manipulator 6 snatch the bottle that the sample was accomplished from coal sampling mechanism 4 and put to dress lid and seal on dress lid mechanism, place the bottle that seals in the relevant position on buffer memory frame 9 again, wait for the inspection result, when this inspection result of automatic comparison of database has not had the problem, just can stop using this bottle, otherwise, need carry out the chemical examination again to the coal sample in this bottle, and so on, until all the coal samples in the bottle on buffer memory frame 9 are all inspected and are ended. Wherein, in order to facilitate the controller 7 to control the manipulator 6 to place the bottle body after sampling on the corresponding position on the buffer storage rack 9, a sensor capable of sensing whether the bottle body exists or not may be set in each placement groove 911 on the buffer storage rack 9, and the controller 7 is informed by each sensor which placement groove 911 does not have any bottle body currently, so that the manipulator 6 may be controlled to place the bottle body in the placement groove 911.

Further, referring to fig. 2, the coal moisture analysis system may further include a cabinet 10, the cabinet 10 being disposed at the bottom of the cover 1, the cabinet 10 being provided with a drawer 101 and a channel 102 disposed obliquely; wherein the inlet 1011 of the drawer 101 is positioned in the cover body 1, and the push-pull end of the drawer 101 is positioned outside the cabinet body 10; the inlet 1021 of the channel 102 is positioned in the cover 1, the outlet of the channel 102 is positioned outside the cabinet 10, and the position of the inlet 1021 of the channel 102 is higher than the position of the outlet of the channel 102; the push-pull end of drawer 101 and the outlet of channel 102 are on the same side of cabinet 10, and the push-pull end of drawer 101 and the outlet of channel 102 are on opposite sides of the system from the end of transport mechanism 3. Through the setting of the cabinet body 10, when the automatic comparison and verification result of the database is not problematic, the manipulator 6 can throw the sealed bottle body out of the cabinet body 10 through the inlet 1021 of the channel 102, at this time, a box body can be placed at the outlet of the channel 102 so as to collect the bottle body sliding from the channel 102, and after the crucible is used, the manipulator 6 can throw the crucible into the drawer 101 through the inlet 1011 of the drawer 101, and after the experiment is finished, the worker pulls the drawer 101 open to recover the crucible, so that the use is more convenient. Moreover, by designing the push-pull end of the drawer 101 and the outlet of the channel 102 and the end of the conveying mechanism 3 in opposite directions, the operator can also be helped to distinguish which side is the direction of collecting the waste and which side is the direction of the bottle body filled with the coal sample entering the cover body 1, and the use is more convenient.

In order to facilitate operators to observe the working condition of the system at any time, the cover body 1 can be designed into a transparent cover body 1 made of transparent materials, and particularly can be made of glass with a penetration preventing function, and a door body for opening or closing the cover body 1 can be arranged on the cover body 1, so that the operators can open the door body to clean the cover body 1; meanwhile, in order to prevent the inspection result from being affected by the human malicious opening of the door body, an alarm device may be mounted on the door body, and specifically, the alarm device may include a sensor and an alarm element that are disposed on the door body and electrically connected to the controller 7, and when the door body is opened, the sensor sends a signal to the controller 7, the controller 7 controls the alarm element to alarm, the sensor may be a formation switch, and the alarm element may be a speaker.

Further, referring to fig. 1, the coal moisture analysis system may further include a camera 12 electrically connected to the controller 7, where the camera 12 is disposed at the top of the cover 1, for capturing an operating state of the coal moisture analysis system. Specifically, the camera 12 can be disposed at a corner of the top of the cover 1, so that the entire coal moisture analysis system can be positioned within the view angle of the camera 12, so that the camera 12 can record the working state of the coal moisture analysis system.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coal moisture analysis system, comprising;

the drying box is arranged in the cover body;

The controller is respectively connected with the drying oven, the conveying mechanism, the coal sampling mechanism, the crucible feeding mechanism and the mechanical flashlight, and is used for controlling the working states of the drying oven, the conveying mechanism, the coal sampling mechanism, the crucible feeding mechanism and the mechanical flashlight, calculating the water content of the coal sample according to the weight value fed back by the coal sampling mechanism, and uploading the water content to a server;

the coal sampling mechanism includes:

the first driving mechanism is electrically connected with the controller and is in driving connection with the overturning arm, and is used for driving the overturning arm to overturn under the control of the controller so as to enable the bottle body to be inverted, and an outlet of the sample adding mechanism is opposite to the crucible.

2. The coal moisture analysis system of claim 1, wherein the coal sampling mechanism further comprises:

3. The coal moisture analysis system of claim 1, wherein a delivery port is provided on a sidewall of the housing; crucible feed mechanism includes:

4. The coal moisture analysis system of claim 1, wherein the water content of the coal is,

the cover dismounting mechanism comprises:

5. The coal moisture analysis system of claim 1, wherein the conveyor mechanism includes a conveyor belt electrically connected to the controller, the conveyor belt having a gripping position for the manipulator to grip the bottle, and an intermittent feed device, the intermittent feed device comprising:

6. The coal moisture analysis system of claim 5,

the second driving mechanism comprises a first rack, a second rack meshed and connected with the first rack through a gear, and a cylinder electrically connected with the controller, wherein the cylinder is in driving connection with the first rack;

7. The coal moisture analysis system of claim 1, wherein the water content of the coal is,

the manipulator comprises a first claw and a second claw which can move relatively and are used for grabbing objects, and the first claw and the second claw respectively comprise a claw body and a claw root connected with the claw body;

8. The coal moisture analysis system of claim 1, further comprising:

9. The coal moisture analysis system of claim 1, further comprising:

10. The coal moisture analysis system of claim 1, further comprising:

the camera is arranged at the top of the cover body and is electrically connected with the controller and used for shooting the working state of the coal moisture analysis system;