A new type of coal quality bonding index test G value full-automatic stirring instrument

Abstract

The utility model relates to coal quality inspection and test equipment technical field, the utility model discloses a novel coal quality bonding index test G value full -automatic stirring appearance, including bottom box, touch -sensitive screen is installed on the bottom box for real -time display data, two groups of lugs, symmetry fixed mounting on the bottom box upper surface, support plate is installed on the lug through the pivot rotation, this novel coal quality bonding index test G value full -automatic stirring appearance, through PLC control module accurate control each mechanism parameter: turnover mechanism ensures 45 degree inclination angle, and the rotation mechanism and stirring mechanism are through PID algorithm and will rotate speed stabilize at 15r / min with 150r / min, and the time length control precision is high, completely meets the national standard requirement, and the result consistency between different batches, different operators is greatly promoted, realizes full -automatic stirring, does not need manual intervention, avoids the operation deformation of manual fatigue, and simultaneously still has four samples simultaneously can be completed once, saves time, improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of coal quality testing equipment, specifically a novel fully automatic stirrer for testing the G value of coal caking index. Background Technology

[0002] In the coal chemical industry, the caking index (G value) of coal is one of the core indicators for evaluating the quality of coking coal. Its test results directly affect the process parameters of coal sorting, processing, and subsequent coking production. According to the national standard GB / T5447, during the testing of the caking index, the mixture of coal sample and standard anthracite must undergo strict stirring in a crucible. Specifically, the crucible must be tilted at 45° and rotated counterclockwise at approximately 15 r / min, while the stirring wire rotates clockwise at approximately 150 r / min, with the stirring wire adhering to the arc transition between the crucible wall and bottom. After stirring for 105 seconds, the crucible and stirring wire must be gradually rotated back to a vertical position, and stirring must continue for 15 seconds, with the total duration strictly controlled to 2 minutes. This operation places extremely high demands on the stirring angle, rotation speed, duration, and continuity of action, and is a crucial step in ensuring the accuracy of the test results.

[0003] Currently, traditional coal caking index testing mainly relies on manual operation to complete the above-mentioned stirring process. The speed, angle, and duration of manual stirring are easily affected by the operator's experience, physical strength, and concentration. The inconsistency of operation between different personnel or between different batches of the same personnel is poor, resulting in low reproducibility of test results, which is difficult to meet the data reliability requirements of industrial production. Moreover, manual operation requires maintaining stable hand movements within a limited time, which can easily lead to fatigue and further increase the risk of errors. New operators need long-term training to master the operational details required by national standards, which increases the labor costs of enterprises. Therefore, we have proposed a new type of fully automatic stirrer for coal caking index testing G-value to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel fully automatic mixer for testing the G-value of coal caking index. It solves the problems of poor operational consistency and low reproducibility of test results caused by differences in operator experience, physical strength, and concentration when manually stirring, such as variations in speed, angle, and duration; fatigue and increased error risk due to the need for manual operation to maintain stable movements within a limited time; and the need for long-term training for new operators to master the national standard operating details, which increases the company's labor costs.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a novel fully automatic mixer for testing the G value of coal caking index, including a bottom box;

[0006] A touchscreen, mounted on the base box, is used to display data in real time;

[0007] Two sets of protrusions are symmetrically and fixedly installed on the upper surface of the base box;

[0008] A support plate is rotatably mounted on a protrusion via a rotating shaft, and a lower box is fixedly installed between the two sets of support plates;

[0009] The upper box is located above the lower box;

[0010] The lifting mechanism, mounted on two sets of support plates, can drive the upper box to move up and down;

[0011] The flipping mechanism, installed between the bottom box and the upper box, is used to drive the lower box and the upper box to flip synchronously at a 45° angle.

[0012] Multiple clamping mechanisms are provided on the lower box, and a rotating mechanism that drives the clamping mechanisms to rotate is installed inside the lower box. A crucible can be placed on the clamping mechanism for clamping and fixing.

[0013] Multiple stirring mechanisms are installed on the upper box to stir the coal sample inside the crucible. The upper box is equipped with a shaking mechanism to shake the stirring mechanisms.

[0014] Preferably, the flipping mechanism is a first electric telescopic push rod, and the base and output end of the first electric telescopic push rod are respectively hinged to the bottom box and the lower box through hinge seats.

[0015] Preferably, the clamping mechanism is provided in four sets. The clamping mechanism includes a base cup, and a pressing rod is placed on the base cup through a circular hole. A metal elastic sheet is fixed on the base cup near the pressing rod. The surface of the crucible is provided with a slot for the pressing rod.

[0016] Preferably, the rotating mechanism is a first motor, the number of first motors is matched with the clamping mechanism, the first motor is fixed to the inner side wall of the lower box, and the output end is connected to the corresponding base cup.

[0017] Preferably, the lifting mechanism is a second electric telescopic push rod, which is fixedly installed between two sets of support plates via a horizontal plate, and a top seat is fixedly installed at the output end of the second electric telescopic push rod. The upper box is rotatably installed on the top seat via a rotating shaft, and a DC geared motor for driving the rotating shaft is installed on the top seat.

[0018] Preferably, the output end of the shaking mechanism is equipped with a shaking plate, the stirring mechanism consists of four groups, and each group of the stirring mechanism is equipped with a stirring rod on the shaking plate. The stirring rod is threaded with a stirring wire and is equipped with a spring for floating.

[0019] Preferably, a PLC control module is installed inside the base box.

[0020] Beneficial effects

[0021] This invention provides a novel fully automatic mixer for testing the G-value of coal caking index. Compared with existing technologies, it has the following advantages:

[0022] This new fully automatic stirrer for testing the G-value of coal caking index uses a PLC control module to precisely control the parameters of each mechanism: the tilting mechanism ensures a 45° tilt angle, and the rotation and stirring mechanisms stabilize the rotation speed at 15 r / min and 150 r / min respectively through a PID algorithm. The high precision of the duration control fully meets national standards, significantly improving the consistency of results between different batches and different operators. It achieves fully automatic stirring without manual intervention, reducing labor intensity. The clamping mechanism fixes the crucible, and the tilting, lifting, and stirring actions are all driven by motors and push rods, avoiding operational deformation caused by human fatigue, such as angle deviation and speed reduction, thus reducing the risk of errors from the source. Simple operation is achieved through a touchscreen; operators only need to place the crucible and press the start button, and the system automatically executes standardized procedures without needing to understand complex operational details, significantly shortening the training cycle and reducing corporate training costs. It also allows for the simultaneous processing of four samples, saving time and improving work efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a left view of the overall structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the synchronous folding structure of the upper and lower boxes of this utility model.

[0026] In the diagram: 101, bottom box; 102, protrusion; 103, support plate; 104, upper box; 105, lower box; 106, touch screen; 107, clamping mechanism; 108, crucible; 109, stirring mechanism; 110, flipping mechanism; 111, lifting mechanism. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1-3 As shown:

[0029] A novel fully automatic mixer for testing the G-value of coal caking index includes a bottom chamber 101;

[0030] Touch screen 106, mounted on base box 101, is used to display data in real time;

[0031] Two sets of protrusions 102 are symmetrically and fixedly installed on the upper surface of the base box 101;

[0032] The support plate 103 is rotatably mounted on the protrusion 102 via a rotating shaft, and the lower box 105 is fixedly installed between the two sets of support plates 103;

[0033] The upper box 104 is located above the lower box 105;

[0034] The lifting mechanism 111 is installed on two sets of support plates 103 and can drive the upper box 104 to move up and down. The lifting mechanism 111 is a second electric telescopic push rod. The second electric telescopic push rod is fixedly installed between the two sets of support plates 103 through a horizontal plate, and a top seat is fixedly installed at the output end of the second electric telescopic push rod. The upper box 104 is rotatably installed on the top seat through a rotating shaft, and a DC geared motor that drives the rotating shaft to rotate is installed on the top seat.

[0035] The flipping mechanism 110 is installed between the bottom box 101 and the lower box 105 to drive the lower box 105 and the upper box 104 to flip at a 45° angle simultaneously. The flipping mechanism 110 is a first electric telescopic push rod. The base and output end of the first electric telescopic push rod are respectively hinged to the bottom box 101 and the lower box 105 through hinge seats.

[0036] Multiple clamping mechanisms 107 are provided on the lower box 105. The clamping mechanisms 107 can hold and fix crucibles 108. There are four sets of clamping mechanisms 107. Each clamping mechanism 107 includes a base cup, and a pressing rod is placed on the base cup through a circular hole. A metal elastic sheet is fixed on the base cup near the pressing rod. The surface of the crucible 108 has a slot for the pressing rod. A rotating mechanism for driving the clamping mechanism 107 to rotate is installed in the lower box 105. The rotating mechanism is a first motor. The number of first motors matches the number of clamping mechanisms 107. The first motors are fixed on the inner side wall of the lower box 105, and their output ends are connected to the corresponding base cups.

[0037] Multiple sets of stirring mechanisms 109 are installed on the upper box 104. The stirring mechanisms 109 stir the coal sample inside the crucible 108. The upper box 104 is equipped with a shaking mechanism to shake the stirring mechanisms 109. The output end of the shaking mechanism is equipped with a shaking plate. There are four sets of stirring mechanisms 109. Each set of stirring mechanisms 109 includes a stirring rod installed on the shaking plate. The stirring rod has a stirring wire inside and a spring is provided on the stirring rod for floating. A PLC control module is installed in the bottom box 101.

[0038] In this implementation plan: the new type of fully automatic stirrer for testing the G value of coal caking index involves the operator placing the crucible 108 on the four sets of clamping mechanisms 107 in the lower box 105, and simultaneously loading the coal sample into the crucible 108.

[0039] The crucible 108 is placed in the base cup of the clamping mechanism 107. One end of the extrusion rod passes through the circular hole and is inserted into the slot. The extrusion rod is automatically clamped by the elasticity of the metal elastic sheet to prevent shaking during the stirring process.

[0040] Stirring parameters, such as speed and duration, can be set via touch screen 106. The system initializes and detects the status of each mechanism, such as whether the lifting mechanism 111 has been reset and whether the tilting mechanism 110 is at the initial angle.

[0041] When the touch screen 106 presses the start button, the system starts. The lifting mechanism 111 and the second electric telescopic push rod drive the upper box 104 to descend, so that the stirring rods of the four stirring mechanisms 109 are accurately inserted into the corresponding crucibles 108, and the stirring rods are in contact with the arc transition between the crucible wall 108 and the bottom. During this process, the rocking plate drives the stirring rods. The stirring wires inside the stirring rods and the springs are set on the stirring rods to play a floating role.

[0042] The first electric telescopic push rod of the flipping mechanism 110 extends, and through the support plate 103, it drives the lower box 105 and the upper box 104 to flip synchronously to a 45° tilt angle, which meets the national standard requirement for the tilt of the crucible 108.

[0043] The first motor of the rotating mechanism starts, driving the clamping mechanism 107 to rotate the crucible 108 counterclockwise at a speed of 15 r / min. At the same time, the drive motor of the stirring mechanism 109 starts, driving the stirring rod to rotate clockwise at a speed of 150 r / min. Meanwhile, the shaking mechanism drives the shaking plate to shake slightly, so that the stirring rod can stir the coal sample in all directions to ensure uniform mixing.

[0044] The touch screen 106 displays the rotation speed, current duration, and tilt angle of the crucible 108 and the stirring rod in real time. The PLC control module maintains stable rotation speed through PID control algorithm. If the stirring rod speed deviates from 150 r / min, the motor output power is automatically adjusted.

[0045] After 105 seconds, the tilting mechanism 110 retracts, gradually resetting the lower box 105 and the upper box 104 to a vertical position. During this process, stirring continues for another 15 seconds in the vertical position to ensure that the coal sample is fully mixed at different angles. After a total duration of 2 minutes, the rotating mechanism and stirring mechanism 109 stop operating, and the lifting mechanism 111 drives the upper box 104 to rise, causing the stirring rod to detach from the crucible 108. If it is necessary to remove or place the crucible 108, the upper box 104 can be tilted back 90° by the DC geared motor on the top seat for easy operation. The system automatically resets to the initial state. If there is no operation within 5 minutes, the power is automatically cut off to save energy.

[0046] This solution uses a PLC control module to precisely control the parameters of each mechanism: the tilting mechanism 110 ensures a 45° tilt angle, and the rotation and stirring mechanisms 109 use PID algorithms to stabilize the rotation speed at 15 r / min and 150 r / min respectively, achieving high precision in duration control, fully complying with national standards, significantly improving the consistency of results between different batches and different operators, and realizing fully automatic stirring without manual intervention; the clamping mechanism 107 fixes the crucible 108, and the tilting, lifting, and stirring actions are all driven by motors and push rods, avoiding operational deformation caused by human fatigue, such as angle deviation and speed reduction, reducing the risk of error from the source; the touch screen 106 enables simple operation, the operator only needs to place the crucible 108 and press the start button, and the system automatically executes the standardized process, without the need to understand complex operational details, greatly shortening the training cycle and reducing the company's training investment, while also being able to complete four samples at the same time, saving time and improving work efficiency.

[0047] It should be noted that: two sets of speed sensors are respectively installed on the output shafts of the rotating mechanism (the first motor that drives the crucible 108 to rotate) and the stirring mechanism 109 (the drive motor that drives the stirring rod), which detect the actual speed of the crucible 108 and the stirring rod in real time, convert the speed signal into an electrical signal and transmit it to the PLC control module. The PLC control module adjusts the motor output through a PID algorithm to ensure stable speed and feeds back the real-time speed data to the touch screen 106. An angle sensor is installed at the rotating shaft of the support plate 103 to detect the real-time tilt angle (e.g., 45° or 0°) between the lower box 105 and the upper box 104, and transmits the angle signal to the PLC control module. The PLC control module determines whether the preset angle has been reached and sends the angle data to the touch screen 106 for display. The timer is integrated into the PLC control module and is controlled by the PLC control module to start the timer, record the running time of the stirring process in real time, and transmit the timing data to the touch screen 106 for display, ensuring that the total time is strictly controlled.

[0048] All electrical equipment involved in this product is powered by an external power source. During use, each piece of electrical equipment can be started and operated separately through the PLC control module. The power connection method of each piece of electrical equipment is a mature existing technology and is well known to those skilled in the art, so it will not be described in detail here.

[0049] Furthermore, any aspects of the shaking mechanism not described in detail in this specification are existing technologies known to those skilled in the art.

[0050] It should be noted that the stirring wire is a consumable and detachable part, which can be replaced flexibly.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel fully automatic mixer for testing the G-value of coal caking index, characterized in that: Including the bottom box (101); A touch screen (106) is mounted on the base box (101) for real-time data display; Two sets of protrusions (102) are symmetrically fixedly installed on the upper surface of the base box (101); The support plate (103) is rotatably mounted on the protrusion (102) via a rotating shaft, and a lower box (105) is fixedly installed between the two sets of support plates (103); The upper box (104) is located above the lower box (105); The lifting mechanism (111) is installed on two sets of support plates (103) and can drive the upper box (104) to move up and down. A flipping mechanism (110) is installed between the bottom box (101) and the lower box (105) to drive the lower box (105) and the upper box (104) to flip at a 45° angle simultaneously. Multiple clamping mechanisms (107) are provided on the lower box (105), and a rotating mechanism for driving the clamping mechanism (107) to rotate is installed in the lower box (105). A crucible (108) for clamping and fixing can be placed on the clamping mechanism (107). Multiple stirring mechanisms (109) are installed on the upper box (104) to stir the coal sample inside the crucible (108). The upper box (104) is equipped with a shaking mechanism to shake the stirring mechanism (109).

2. The novel fully automatic stirrer for testing the G-value of coal caking index according to claim 1, characterized in that: The flipping mechanism (110) is a first electric telescopic push rod. The base and output end of the first electric telescopic push rod are respectively hinged to the bottom box (101) and the lower box (105) through hinge seats.

3. The novel fully automatic stirrer for testing the G-value of coal caking index according to claim 2, characterized in that: The clamping mechanism (107) is provided in four sets. The clamping mechanism (107) includes a base cup, and a pressing rod is placed on the base cup through a circular hole. A metal elastic sheet is fixed on the base cup near the pressing rod. The surface of the crucible (108) is provided with a slot for the pressing rod.

4. The novel fully automatic stirrer for testing the G-value of coal caking index according to claim 2, characterized in that: The rotating mechanism is a first motor, the number of which matches the clamping mechanism (107). The first motor is fixed to the inner side wall of the lower box (105), and its output end is connected to the corresponding base cup.

5. The novel fully automatic stirrer for testing the G-value of coal caking index according to claim 1, characterized in that: The lifting mechanism (111) is a second electric telescopic push rod. The second electric telescopic push rod is fixedly installed between two sets of support plates (103) through a horizontal plate. The output end of the second electric telescopic push rod is fixedly installed with a top seat. The upper box (104) is rotatably installed on the top seat through a rotating shaft. A DC geared motor that drives the rotating shaft to rotate is installed on the top seat.

6. The novel fully automatic stirrer for testing the G-value of coal caking index according to claim 1, characterized in that: The output end of the shaking mechanism is equipped with a shaking plate. The stirring mechanism (109) consists of four groups, and each group of the stirring mechanism (109) includes a stirring rod installed on the shaking plate. The stirring rod is threaded with stirring wire and is equipped with a spring for floating.

7. The novel fully automatic stirrer for testing the G-value of coal caking index according to claim 1, characterized in that: A PLC control module is installed inside the base box (101).

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