A grinding disc crusher

Abstract

The utility model discloses a grinding disc crusher, which has a grinding chamber, wherein a coaxial moving grinding disc and a static grinding disc are arranged in the grinding chamber, and the working surfaces of the moving grinding disc and the static grinding disc are arranged facing each other and form a grinding gap; the working surface of the static grinding disc includes an inner ring grinding area and an outer ring functional area, and a cleaning mechanism is installed on the outer ring functional area, and the cleaning mechanism includes a gas nozzle that can be connected to a high-pressure gas source, and a distance meter for measuring the size of the grinding gap is installed at the injection end of the gas nozzle, and the detection end of the distance meter is arranged back to the injection end. The grinding disc crusher provided by the utility model has a distance meter for measuring the size of the gap between the working surface of the moving grinding disc and the working surface of the static grinding disc installed on the static grinding disc, wherein a cleaning mechanism is also arranged in the grinding chamber, and when the detection probe of the distance meter is blocked or covered by foreign matter, the gas nozzle of the cleaning mechanism can spray high-pressure gas to clean the probe to ensure the accuracy of the detection.

Description

Technical Field

[0001] The utility model relates to the technical field of material crushing, and more specifically, to a grinding disc crusher. Background Art

[0002] In the ternary cathode material industry, coarse crushing equipment is one of the important equipment for the initial dissociation of sintered materials. The function of this type of equipment is to dissociate the materials. It is necessary to focus on monitoring the particle size of the dissociated materials in the coarse crushing equipment to prevent the gap changes from causing the material particles to be too large after crushing, resulting in abnormal blockage in the subsequent conveying process, increasing the strength of the fine crushing equipment, and increasing additional maintenance labor and wasting energy. Therefore, it is necessary to strictly control the grinding disc gap of the coarse crushing equipment to ensure the particle size of the coarse crushed material and the stability of the equipment.

[0003] The existing grinding disc crusher has the problem of insufficient measurement accuracy of the gap between the working surfaces of the moving grinding disc and the static grinding disc. Therefore, how to provide a grinding disc crusher that can accurately measure the size of the gap between the working surfaces of the moving grinding disc and the static grinding disc has become a technical problem that needs to be solved urgently. Utility Model Content

[0004] The utility model aims to provide a grinding disc crusher which can accurately measure the gap size between the working surfaces of a moving grinding disc and a static grinding disc.

[0005] The utility model provides a grinding disc crusher, which has a grinding chamber, wherein a coaxial moving grinding disc and a static grinding disc are arranged in the grinding chamber, the working surfaces of the moving grinding disc and the static grinding disc are arranged opposite to each other and a grinding gap is formed; the working surface of the static grinding disc comprises an inner ring grinding area and an outer ring functional area, a cleaning mechanism is installed on the outer ring functional area, the cleaning mechanism comprises a gas nozzle which can be connected to a high-pressure gas source, a rangefinder for measuring the size of the grinding gap is installed at the injection end of the gas nozzle, and the detection end of the rangefinder is arranged back to the injection end.

[0006] Optionally, the cleaning mechanism further comprises a nozzle support, and the gas nozzle is rotatably mounted on the nozzle support.

[0007] Optionally, the inner grinding area of ​​the static grinding disc protrudes from the outer functional area, wherein an axial mounting hole is provided on the outer functional area, and the cleaning mechanism is fixed in the mounting hole;

[0008] Preferably, there are a plurality of mounting holes, each of which is arranged at equal intervals, and a rangefinder is correspondingly provided in each mounting hole.

[0009] Optionally, the grinding disc crusher further comprises a grinding disc gap adjustment mechanism, which comprises a first pressure detection device, a pressure reducing device, an execution device and a PLC;

[0010] The first pressure detection device is located in the grinding chamber of the grinding disc crusher;

[0011] The pressure reducing device is arranged at the gas inlet end of the gas nozzle;

[0012] The actuator can drive the dynamic grinding disc and / or the static grinding disc to move axially to adjust the size of the grinding gap;

[0013] The PLC is respectively connected with the distance meter, the first pressure detection device, the pressure reducing device, the execution device and the cleaning mechanism by signal.

[0014] Optionally, the grinding disc gap adjustment mechanism further includes a temperature detection device, which is used to detect the grinding disc temperature of the moving grinding disc and / or the static grinding disc, and the temperature detection device is connected to the PLC signal.

[0015] Optionally, a grinding wheel pulley is connected to the movable grinding wheel, a tachometer is installed on the grinding wheel pulley, and the tachometer is connected to the PLC signal.

[0016] Optionally, a vibration detector is installed on the grinding wheel pulley, and the vibration detector is connected to the PLC signal.

[0017] Optionally, the grinding disc gap adjustment mechanism also includes an alarm, and the alarm is connected to the PLC signal.

[0018] Optionally, the air inlet end of the gas nozzle is connected to a backflush pipe, the other end of the backflush pipe is connected to a second pressure detection device, and the second pressure detection device is connected to the PLC signal.

[0019] Optionally, the grinding disc gap adjustment mechanism also includes a touch display screen, and the touch display screen is electrically connected to the PLC.

[0020] According to the technical content disclosed in the utility model, the following beneficial effects are achieved:

[0021] The grinding disc crusher provided by the utility model has a distance meter installed on the static grinding disc for measuring the size of the gap between the grinding surfaces of the dynamic grinding disc and the static grinding disc, wherein a cleaning mechanism is also arranged in the grinding chamber, and when the detection probe of the distance meter is blocked or covered by foreign matter, the gas nozzle of the cleaning mechanism can spray high-pressure gas to clean the probe to ensure the detection accuracy.

[0022] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0024] Figure 1 It is a structural schematic diagram of the grinding disc crusher of the utility model.

[0025] Explanation of the accompanying drawings: 1. static grinding disc; 2. dynamic grinding disc; 3. distance meter; 4. backblowing pipe; 5. first pressure detection device; 6. second pressure detection device; 7. servo motor; 8. grinding disc pulley; 9. vibration detector; 10. tachometer; 11. PLC. DETAILED DESCRIPTION

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0028] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0029] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0030] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0031] The utility model is a modification of the existing equipment for realizing the stable operation of the grinding disc crushing equipment, that is, a mounting hole is opened on the static grinding disc of the equipment for installing an infrared rangefinder with a back-blowing function, and in addition, the grinding disc temperature detector and the grinding disc detection vibration meter can be configured to realize the precise detection of the grinding disc gap of the rotary wheel mill and the automatic monitoring of the grinding disc temperature and the grinding disc integrity.

[0032] See also Figure 1 The utility model discloses a grinding disc crusher, which has a grinding chamber, in which a coaxial moving grinding disc 2 and a static grinding disc 1 are arranged, and the working surfaces of the moving grinding disc 2 and the static grinding disc 1 are arranged facing each other to form a grinding gap; wherein one axial end of the moving grinding disc 2 is coaxially connected with a grinding disc pulley 8, and the output end of the motor of the grinding disc crusher is connected with the grinding disc pulley 8 by a belt, so that the moving grinding disc 2 is driven by the grinding disc pulley 8 to rotate around its axis relative to the static grinding disc 1, so as to crush the materials in the grinding gap.

[0033] Specifically, the grinding disc crusher provided in this embodiment includes a static grinding disc 1, a dynamic grinding disc 2, a grinding disc gap adjustment mechanism, a cleaning mechanism and a PLC 11. Both the static grinding disc 1 and the dynamic grinding disc 2 are located in the grinding chamber of the grinding disc crusher; in this embodiment, the working surface of the static grinding disc includes an inner ring grinding area and an outer ring functional area, and the inner ring grinding area of ​​the static grinding disc protrudes from the outer ring functional area, wherein an axial mounting hole is provided on the outer ring functional area, and a rangefinder 3 and a cleaning mechanism are sequentially installed in the mounting hole from the inside to the outside; preferably, there are multiple mounting holes, and each mounting hole is arranged at equal intervals, and a rangefinder 3 and a cleaning mechanism are correspondingly provided in each mounting hole. Among them, in this embodiment, a total of three mounting holes are provided, and the positions where the mounting holes are opened are close to the periphery of the static grinding disc, and the three holes are evenly distributed at intervals of 120° in the circumference of the static grinding disc 1, and a rangefinder 3 is installed in each hole, and the rangefinder 3 uses an infrared rangefinder, which can be used to measure the gap size between the working surface of the dynamic grinding disc 2 and the working surface of the static grinding disc 1. It should be noted that the main purpose of setting three holes is that the installation error of the infrared rangefinder will lead to a decrease in the gap accuracy of different positions of the grinding disc. Therefore, setting three test points can effectively reduce the low measurement accuracy caused by installation errors.

[0034] The rangefinder 3 includes a measuring probe; the cleaning structure includes a gas nozzle connected to a high-pressure gas source through a back-blowing pipe 4 and a nozzle support for supporting the nozzle, the gas nozzle is rotatably connected to the nozzle support, and the gas nozzle can rotate around the connection point between the nozzle support and the gas nozzle to adjust the blowing angle. The injection end of the gas nozzle is equipped with a rangefinder 3 for measuring the size of the grinding gap, and the measuring probe of the rangefinder 3 is set back to the injection end of the nozzle, that is, the detection end of the measuring probe is in the same direction as the injection end of the nozzle, and the detection end is located in the injection direction of the nozzle. Among them, the back-blowing pipe 4 is connected to a second pressure detection device 6, and the second pressure detection device 6 is connected to the PLC11 signal; the air inlet end of the gas nozzle is provided with a pressure reducing device, specifically, a pressure reducing valve is provided to adjust the outlet pressure of the gas nozzle. The grinding chamber is equipped with a first pressure detection device 5, which is an electronic pressure gauge. The first pressure detection device 5 and the pressure reducing device are both connected to the PLC signal to release the pressure when the grinding chamber pressure is too high. When the probe surface of the infrared rangefinder is covered with materials or debris, the PLC 11 controls the rotation of the gas nozzle, adjusts the gas nozzle to a suitable angle, and then passes high-pressure gas from the backflush pipe 4 to the gas nozzle for purging and cleaning. The second pressure detection device 6 is used to detect the gas pressure passed into the backflush pipe 4 to ensure that the high-pressure gas blown out of the gas nozzle meets the use requirements. In some embodiments, the infrared rangefinder is cleaned using a cleaning structure before each measurement.

[0035] The gap adjustment mechanism includes a servo motor 7 and an actuator, the actuator is connected to the moving grinding disc 2 and / or the static grinding disc 1, and the servo motor 7 drives the moving grinding disc 2 and / or the static grinding disc 1 to move in the axial direction of the moving grinding disc 2 through the actuator to adjust the size of the gap between the two. In this embodiment, the actuator can be a position adjustment component, the servo motor 7 is connected to the PLC11 signal, the PLC11 calculates the error value of the gap between the moving grinding disc 2 and the static grinding disc 1 according to the measurement result of the infrared rangefinder, and sends an action command to the servo motor 7 to adjust the gap between the moving grinding disc 2 and the static grinding disc 1 to a reasonable range.

[0036] Furthermore, a tachometer 10 and a vibration detector 9 are installed on the grinding wheel pulley 8, and both the tachometer 10 and the vibration detector 9 are connected to the PLC 11 signal. The grinding wheel gap adjustment mechanism also includes a temperature detection device and an alarm, and the temperature detection device is used to detect the grinding wheel temperature of the moving grinding wheel 2 and / or the static grinding wheel 1, and the temperature detection device and the alarm are connected to the PLC 11 signal.

[0037] Furthermore, the grinding disc gap adjustment mechanism also includes a touch screen (not shown in the figure), and the touch screen is electrically connected to the PLC 11. Specifically, the infrared rangefinder with backflush function, the grinding disc temperature detector and the grinding disc vibration meter are connected to the PLC through wires and automatically displayed on the touch screen, realizing the conversion of analog quantity into digital quantity, realizing the automatic detection of gap, temperature and grinding disc integrity, and solving the risks and waste caused by manual disassembly detection.

[0038] In summary, the grinding disc gap adjustment mechanism of the grinding disc crusher provided by the utility model has a distance meter 3 and a cleaning mechanism installed in the installation hole, and an electronic pressure gauge is installed in the grinding chamber of the equipment. The air pressure sprayed by the nozzle is adjusted by the pressure reducing valve to use appropriate air pressure to clean the material attached to the detection probe and the debris blocking the detection direction of the detection probe. After cleaning, the infrared distance meter automatically detects the size of the gap and feeds back the detection result to PLC11. The servo motor is controlled by the PLC11 program to automatically adjust the equipment gap; a temperature detection probe as a temperature detection device is installed on the grinding disc of the coarse crushing equipment to detect the temperature in real time. Test the temperature of the grinding disc to reduce the risk of cracking and breakage caused by excessive temperature. If the set temperature is exceeded, an audible and visual alarm will be issued through the alarm. A tachometer and a vibration detector will be installed at the grinding disc pulley of the equipment to ensure the determination of the rated speed of the grinding disc and the integrity of the grinding disc through the vibration amplitude (eccentricity caused by operation after the grinding disc is damaged). The above gap test and adjustment, grinding disc temperature and speed, and grinding disc integrity are all achieved through PLC integrated control. At the same time, safety parameters are set to ensure that audible and visual alarms are issued in time when abnormalities occur to remind employees to carry out preventive maintenance in time, thereby reducing material abnormalities and economic losses caused by equipment damage.

[0039] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A grinding disc crusher having a grinding chamber, characterized in that: A coaxial moving grinding disc and a static grinding disc are arranged in the grinding chamber, and the working surfaces of the moving grinding disc and the static grinding disc are arranged facing each other and form a grinding gap; the working surface of the static grinding disc includes an inner ring grinding area and an outer ring functional area, and a cleaning mechanism is installed on the outer ring functional area, and the cleaning mechanism includes a gas nozzle that can be connected to a high-pressure gas source, and a rangefinder for measuring the size of the grinding gap is installed at the injection end of the gas nozzle, and the detection end of the rangefinder is arranged back to the injection end.

2. The grinding disc crusher according to claim 1, characterized in that: The cleaning mechanism also includes a nozzle support, and the gas nozzle is rotatably mounted on the nozzle support.

3. The grinding disc crusher according to claim 1 or 2, characterized in that: The inner grinding area of ​​the static grinding disc protrudes from the outer functional area, wherein an axial mounting hole is provided on the outer functional area, and the cleaning mechanism is fixed in the mounting hole.

4. The grinding disc crusher according to claim 3, characterized in that: There are a plurality of mounting holes, each of which is arranged at equal intervals, and each of the mounting holes is correspondingly provided with a rangefinder.

5. The grinding disc crusher according to claim 1 or 2, characterized in that: The grinding disc crusher also includes a grinding disc gap adjustment mechanism, which includes a first pressure detection device, a pressure reducing device, an execution device and a PLC; The first pressure detection device is located in the grinding chamber of the grinding disc crusher; The pressure reducing device is arranged at the gas inlet end of the gas nozzle; The actuator can drive the movable grinding disc and / or the static grinding disc to move axially to adjust the size of the grinding gap; The PLC is respectively connected to the distance meter, the first pressure detection device, the pressure reducing device, the execution device and the cleaning mechanism by signals.

6. The grinding disc crusher according to claim 5, characterized in that: The grinding disc gap adjustment mechanism also includes a temperature detection device, which is used to detect the grinding disc temperature of the movable grinding disc and / or the static grinding disc, and the temperature detection device is connected to the PLC signal.

7. The grinding disc crusher according to claim 5, characterized in that: The movable grinding disc is connected with a grinding disc pulley, a tachometer is installed on the grinding disc pulley, and the tachometer is connected with the PLC signal.

8. The grinding disc crusher according to claim 7, characterized in that: A vibration detector is installed on the grinding wheel pulley, and the vibration detector is connected to the PLC signal.

9. The grinding disc crusher according to claim 8, characterized in that: The grinding disc gap adjustment mechanism also includes an alarm, and the alarm is connected to the PLC signal.

10. The grinding disc crusher according to claim 5, characterized in that: The air inlet end of the gas nozzle is connected to a backflush pipe, the other end of the backflush pipe is connected to a second pressure detection device, and the second pressure detection device is connected to the PLC signal.

11. The grinding disc crusher according to claim 5, characterized in that: The grinding disc gap adjustment mechanism also includes a touch display screen, and the touch display screen is electrically connected to the PLC.

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