Bituminous coal caking index determination press

Abstract

The utility model relates to bituminous coal caking index determination technical field, specifically disclose a kind of bituminous coal caking index determination pressure ware, including the base of coal sample placement, the side of base is equipped with vertical shaft, the upper end of vertical shaft is connected with weight block, the upper end of base is equipped with rotating shaft, the lower end of base is equipped with motor that drives rotating shaft rotation, the lateral wall of rotating shaft is equipped with guide plate, vertical shaft penetrates guide plate and is slidably matched with guide plate, the lateral wall of vertical shaft is equipped with support bar, the lateral wall of rotating shaft is connected with support plate by pin shaft, support plate one end is connected with pressure rod, the upper end of rotating shaft is connected with electric push rod that pushes pressure rod downward, support plate rotates and pushes support bar upward and lifts vertical shaft under the action of electric push rod;The utility model realizes to the circumferential direction of coal sample individual pressurization test, through multi-station automatic switching, the problem that current manual individual feeding test operation is complicated is solved, realizes continuous test, and efficiency is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of bituminous coal caking index determination technology, specifically a pressure device for determining bituminous coal caking index. Background Technology

[0002] In the determination of the caking index of bituminous coal, the press is a key piece of equipment used to compress a mixture of test coal samples and special anthracite into standard coke lumps. The main function of the press is to compress the mixed coal sample (test coal sample and special anthracite) into dense coke lumps by applying a vertical mass pressure of 6 kg, ensuring the uniformity and strength of the coke lumps during subsequent high-temperature coking. This step directly affects the accuracy of the caking index determination, as the density of the coke lumps significantly influences the abrasion resistance results in the drum test.

[0003] Currently, the pressure device is mainly used by manually lifting the vertical shaft. After pressing, the coal sample needs to be replaced manually before pressing again. The pressing efficiency is low and batch continuous testing cannot be achieved. Utility Model Content

[0004] This invention addresses the aforementioned shortcomings of existing technologies by providing a pressure device for determining the caking index of bituminous coal. It solves the problem of cumbersome manual loading and unloading operations for testing, is suitable for standardized laboratories in the coal and coking industries, enables continuous testing, and significantly improves efficiency. To achieve the above objectives, this utility model provides the following technical solution: A pressure device for determining the caking index of bituminous coal includes a base for placing a coal sample, a vertical shaft on one side of the base, a weight block connected to the upper end of the vertical shaft, a rotating shaft at the upper end of the base, a motor for driving the rotating shaft to rotate at the lower end of the base, a guide plate on the side wall of the rotating shaft, the vertical shaft passing through the guide plate and slidingly engaging with the guide plate, a support rod on the side wall of the vertical shaft, a support plate connected to the side wall of the rotating shaft via a pin, a pressure rod connected to one end of the support plate, and an electric push rod connected to the upper end of the rotating shaft to push the pressure rod downward. The support plate rotates under the action of the electric push rod and pushes the support rod upward to raise the vertical shaft.

[0005] Preferably, the rotation angle of the rotating shaft is 45°, 60°, 90° or 180° each time. Preferably, the upper end of the base is provided with a positioning groove. Preferably, the end of the telescopic rod of the electric push rod is provided with a push block, and the bottom of the push block is provided with a groove that cooperates with the pressure rod. Preferably, the end of the pressure rod is provided with a stop.

[0006] Preferably, the lower end of the base is provided with a support ring, and the motor is located inside the support ring.

[0007] Preferably, a pressure sensor is provided at the lower end of the vertical shaft, and a controller electrically connected to the pressure sensor is provided at the upper end of the rotating shaft. The controller contains a timer and a buzzer alarm.

[0008] Preferably, the controller has a display screen on its side wall.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model can automatically raise and lower the vertical shaft through an electric push rod, and can automatically rotate and change the detection position through a motor, so as to realize the pressure test of coal samples one by one in the circumferential direction. The automatic switching of multiple workstations solves the problem of the cumbersome operation of manual loading and unloading for testing. It is suitable for standardized laboratories in the coal and coking industries, realizes continuous testing, and significantly improves efficiency.

[0010] 2. The upper end of the base of this utility model is provided with a positioning groove for fixing the crucible, which can ensure both the accuracy of the placement position and the stability of the test.

[0011] 3. This utility model uses a controller to display and detect the pressurization time and pressure value in real time, avoiding the problem of low accuracy in manual timing and making the detection more standardized. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the electric linear actuator. Figure 4 This is a schematic diagram of the structure of the coal sample before compression according to this utility model; Figure 5 This is a schematic diagram of the structure of the present invention when pressing a coal sample; In the diagram: 1-Base; 101-Positioning groove; 102-Support ring; 2-Rotating shaft; 201-Guide plate; 3-Electric push rod; 301-Push block; 302-Card slot; 4-Pressure block; 5-Vertical shaft; 501-Support rod; 502-Pressure sensor; 6-Support plate; 601-Pin shaft; 602-Stop block; 603-Pressure rod; 7-Motor; 8-Controller; 9-Crucible. Detailed Implementation 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.

[0013] like Figure 1 As shown, a pressure device for determining the caking index of bituminous coal includes a base 1 for placing a coal sample. A vertical shaft 5 is provided on one side of the base 1, and a weight block 4 is connected to the upper end of the vertical shaft 5. The total weight of the vertical shaft 5 and the weight block 4 is 6 kg. A rotating shaft 2 is provided at the upper end of the base 1, and a motor 7 for driving the rotating shaft 2 to rotate is provided at the lower end of the base 1. A guide plate 201 is provided on the side wall of the rotating shaft 2. The vertical shaft 5 passes through the guide plate 201 and slides in cooperation with the guide plate 201. A support rod 501 is provided on the side wall of the vertical shaft 5. Figure 4 , Figure 5 As shown, a support plate 6 is connected to the side wall of the rotating shaft 2 via a pin 601. One end of the support plate 6 is connected to a pressure rod 603. The upper end of the rotating shaft 2 is connected to an electric push rod 3 that pushes the pressure rod 603 downward. After pressing is completed, the support plate 6 rotates under the action of the electric push rod 3 and pushes the support rod 501 upward to raise the vertical shaft 5.

[0014] In this application, the rotating shaft 2 rotates at angles of 45°, 60°, 90°, or 180° each time. A positioning groove 101 corresponding to the rotation angle is provided at the upper end of the base 1 for placing the crucible 9 (containing a coal sample, with a pressing block for pressing the coal sample inside the crucible 9, and the lower end of the pressing rod 603 pressing on the pressing block), ensuring the accuracy of the position of the crucible 9 (coal sample) and the stability during the pressing process. like Figure 3 As shown, the end of the telescopic rod of the electric push rod 3 is provided with a push block 301. The bottom of the push block 301 is provided with a slot 302 that cooperates with the pressure rod 603. The pressure rod 603 is always located in the slot 302. When the push block 301 moves downward, it can push the pressure rod 603 to lift the vertical shaft 5. When the push block 301 moves upward, it can release the vertical shaft 5, allowing the vertical shaft 5 to slowly press down until the support plate 6 no longer applies an upward lifting force to the vertical shaft 5.

[0015] The end of the pressure rod 603 is provided with a stop 602, which can prevent the push block 301 from disengaging from the pressure rod 603 and ensure the reliability of use.

[0016] like Figure 2 As shown, a support ring 102 is provided at the lower end of the base 1 to support the base 1, and the motor 7 is located inside the support ring 102 to provide protection.

[0017] The lower end of the vertical shaft 5 is equipped with a pressure sensor 502 (or a weight sensor), and the upper end of the rotating shaft 2 is equipped with a controller 8 that is electrically connected to the pressure sensor 502. The controller 8 is equipped with a timer and a buzzer alarm. The side wall of the controller 8 is equipped with a display screen that displays the time of each pressurization.

[0018] The controller 8 is electrically connected to the pressure sensor / weight sensor, the electric actuator 3, the motor 7, the timer, the buzzer alarm, and the display screen.

[0019] Pressure / weight sensor: Monitors the pressure or weight at the lower end of the vertical shaft in real time. When the detected value reaches the standard value (i.e., 6kg, indicating that the vertical shaft and the counterweight have been fully pressed into place), a signal is sent to the controller.

[0020] Timer: Built into the controller, it automatically starts precise timing after receiving a sensor position signal (standard pressurization time is set to 30 seconds).

[0021] Buzzer alarm: Built into the controller, it sounds an alarm when the timing ends (pressurization is complete) and / or when the vertical shaft rises to the highest position.

[0022] Display screen: Located on the side wall of the controller, it displays the current pressurization duration in real time (countdown or countdown).

[0023] Control logic: Place the crucible in the positioning slot → Start → Electric push rod rises (push block rises) → Release vertical shaft and slowly press down → Sensor detects 6kg → Timer starts (displays 30-second countdown) → Timer ends → Buzzer sounds → Electric push rod descends (push block falls) → Pallet lifts support rod → Vertical shaft rises to the highest position → Motor starts → Rotate shaft to the set angle (45° / 60° / 90° / 180°) → Next station positioning slot aligned → Repeat the above pressurization process.

[0024] Workflow Summary 1. Place the crucible containing the coal sample into the positioning slot 101; 2. The controller 8 causes the electric push rod 3 to rise, releasing the vertical shaft 5. The vertical shaft 5 drives the weight block 4 to slowly press down until the weight block contacts the coal sample and reaches a total weight of 6kg; 3. When the pressure / weight sensor detects a 6kg signal, the controller starts a timer (30 seconds), and the display screen begins to show the time; 4. After 30 seconds of pressurization, the buzzer sounds an alarm. The controller 8 causes the electric push rod 3 to descend, the push block 301 presses down the pressure rod 603, causing the support plate 6 to rotate and lift the support rod 501, raising the vertical shaft 5 and the weight block 4 to the highest position (at this time, the crucible can be removed). 5. The controller 8 starts the motor and drives the rotating shaft 2 to rotate precisely at a preset angle (45°, 60°, 90° or 180°).

[0025] Repeat steps 2-5 above to pressurize the next coal sample. Continue this cycle until all coal samples have been tested.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A bituminous coal caking index determination presser comprising a base on which a coal sample is placed, a vertical shaft is arranged on one side of the base, and a weight is connected to the upper end of the vertical shaft, characterized in that: The upper end of the base is provided with a rotating shaft, and the lower end of the base is provided with a motor that drives the rotating shaft to rotate. A guide plate is provided on the side wall of the rotating shaft. The vertical shaft passes through the guide plate and slides with the guide plate. A support rod is provided on the side wall of the vertical shaft. A support plate is connected to the side wall of the rotating shaft through a pin. A pressure rod is connected to one end of the support plate. An electric push rod that pushes the pressure rod downward is connected to the upper end of the rotating shaft. The support plate rotates under the action of the electric push rod and pushes the support rod upward to raise the vertical shaft.

2. A bituminous coal stickiness index determination press according to claim 1 wherein: The rotating shaft rotates at angles of 45°, 60°, 90°, or 180° each time.

3. A bituminous coal stickiness index determination press according to claim 2 wherein: The upper end of the base is provided with a positioning groove.

4. The bituminous coal cohesion index press of claim 1 wherein: The telescopic rod of the electric push rod is provided with a push block at its end, and the bottom of the push block is provided with a groove that cooperates with the pressure rod.

5. A bituminous coal stickiness index determination press according to claim 4 wherein: The end of the pressure rod is provided with a stop block.

6. A bituminous coal cohesion index determination press according to claim 1, wherein: The lower end of the base is provided with a support ring, and the motor is located inside the support ring.

7. The bituminous coal cohesion index determination press according to claim 1, characterized in that: A pressure sensor is provided at the lower end of the vertical shaft, and a controller electrically connected to the pressure sensor is provided at the upper end of the rotating shaft. The controller contains a timer and a buzzer alarm.

8. A bituminous coal caking index test press according to claim 7 wherein: The controller has a display screen on its side wall.

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