CN212600653U - High-temperature multi-atmosphere microwave energy grinding equipment - Google Patents

High-temperature multi-atmosphere microwave energy grinding equipment Download PDF

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Publication number
CN212600653U
CN212600653U CN202020602783.1U CN202020602783U CN212600653U CN 212600653 U CN212600653 U CN 212600653U CN 202020602783 U CN202020602783 U CN 202020602783U CN 212600653 U CN212600653 U CN 212600653U
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microwave
grinding
multimode
microwave heating
ceramic
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柯春林
曹贺杰
刘东晋
黄荣宁
董强
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Tangshan Ren Yuan Microwave Instrument Co ltd
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Tangshan Ren Yuan Microwave Instrument Co ltd
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Abstract

A high-temperature multi-atmosphere microwave energy grinding device belongs to the technical field of high-temperature grinding devices and is used for researching the abrasion resistance of a dielectric material. The technical scheme is as follows: the microwave sources are respectively arranged on the upper surface, the lower surface and the rear surface of the outer wall of the multimode microwave resonant cavity, the power mechanism and the clamping mechanism are respectively arranged on the left side and the right side of the multimode microwave resonant cavity, the microwave heating rotary grinding device is arranged in the multimode microwave resonant cavity, the left side of a microwave heating rotary outer sleeve of the microwave heating rotary grinding device is connected with the power mechanism, the right side of the microwave heating rotary outer sleeve of the microwave heating rotary grinding device is connected with the clamping mechanism, the grinding chamber is positioned in the microwave heating rotary outer sleeve, the vacuumizing mechanism and the ventilating mechanism are respectively connected with the multimode microwave resonant. The utility model discloses can realize the measurement of dielectric material's wearing and tearing volume parameter under electromagnetic wave, high temperature, many atmospheres, high-speed rotatory condition, provide scientific data for the research of major engineering material performance, have novelty and practicality.

Description

High-temperature multi-atmosphere microwave energy grinding equipment
Technical Field
The utility model relates to a many atmospheres of high temperature microwave energy grinding device belongs to high temperature grinding device technical field.
Background
The grinding process is a dynamic process, namely, the grinding media in the grinding tank body are driven by the autorotation of the grinding tank body to be abraded by the friction and impact action between the grinding media and the inner wall of the grinding tank body. When the equipment rotates, the grinding media can fall down after being brought up along the rotating direction due to the friction action between the grinding media and the inner wall of the grinding tank, the grinding media can be continuously worn by friction under the action of impact force and friction force, and the loss amount of the medium material caused by the wear is called as wear loss, which can be obtained by measuring the change of the mass.
Microwave heating is a process of heating materials by utilizing the energy characteristics of microwaves, dielectric materials can absorb microwave energy to different degrees generally, the dielectric materials are coupled with a microwave electromagnetic field to generate 'internal friction heat', the dielectric materials lose electric field energy to generate heat, and the size of heat generated by the dielectric materials in the microwave field is greatly related to the types of the media and the dielectric characteristics of the media.
Under the harsh working condition that the environment of an electromagnetic field, an atmosphere, a high temperature, a high speed and the like approaches to the use limit of the dielectric material during the grinding process, the dielectric material is often subjected to an abrasion aggravation phenomenon due to overhigh surface contact stress and aggravated frictional heat, so that the service life of the dielectric material is reduced, and therefore, the measurement of the ultimate abrasion loss of the dielectric material is an important parameter for representing the abrasion performance of the material in the fields of aerospace, nuclear power and wind power, biomedical engineering, advanced weapons, nuclear fission reactors and the like.
At present, no relevant device for applying microwave heating to high-temperature grinding abrasion exists, so that the development of a high-temperature multi-atmosphere microwave energy grinding device is necessary and possible.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a high temperature many atmospheres microwave energy grinding device is provided, this kind of microwave energy grinding device can be in the electromagnetic field through the wearing and tearing volume of measuring dielectric material under harsh environments such as regulating speed, atmosphere and high temperature.
The technical scheme for solving the technical problems is as follows:
a high-temperature multi-atmosphere microwave energy grinding device comprises a multimode microwave resonance chamber, a microwave source, a microwave heating rotary grinding device, a power mechanism, a clamping mechanism, a vacuumizing mechanism, a ventilating mechanism, a furnace door, a rack and a shell, wherein the rack is fixed at the lower part in the multimode microwave resonance chamber, the ventilating mechanism, the vacuumizing mechanism and a power distribution control box are installed in the rack, the multimode microwave resonance chamber is of a circular double-layer vacuum structure, the microwave source is respectively arranged on the upper surface, the lower surface and the rear surface of the outer wall of the multimode microwave resonance chamber, the power mechanism and the clamping mechanism are respectively installed on the left side and the right side of the multimode microwave resonance chamber, the microwave heating rotary grinding device is arranged in the multimode microwave resonance chamber and consists of a microwave heating rotary outer sleeve and a grinding chamber, the left side of the microwave heating rotary outer sleeve is connected with the power mechanism, the grinding chamber is positioned in the microwave heating rotating outer sleeve, the vacuumizing mechanism and the ventilating mechanism are respectively connected with the multimode microwave resonance chamber, and the oven door is arranged in front of the multimode microwave resonance chamber.
The high-temperature multi-atmosphere microwave energy grinding equipment comprises a microwave heating rotary outer sleeve of the microwave heating rotary grinding device, wherein the microwave heating rotary outer sleeve comprises a spline shaft sleeve, a ceramic pin, a ceramic gasket, an annular metal basket, a wave-transmitting heat-insulating material, a wave-absorbing heating sleeve, an annular metal upper cover and a ceramic bearing, the two annular metal upper covers are respectively connected with two ends of the annular metal basket through bolts, the spline shaft sleeve is arranged at the center of one annular metal upper cover, the upper end of the spline shaft sleeve is connected with a power part, the bottom of the spline shaft sleeve is connected with the ceramic pin, the ceramic gasket is fastened on the ceramic pin through a ceramic nut, the ceramic gasket is connected with a grinding chamber arranged in the microwave heating rotary outer sleeve, a T-shaped cross section round hole is formed in the center of the other annular metal upper cover, the lower part of the T-shaped cross section round hole is communicated, the ceramic bearing is connected with the clamping part, the wave-transparent heat-insulating material is filled in a gap between the microwave heating rotating outer sleeve and the grinding chamber, and the wave-absorbing heating sleeve is sleeved on the periphery of the grinding chamber.
Above-mentioned many atmospheres of high temperature microwave energy grinding device, the grinding chamber includes the grinding tank body, sealed lid, grinding medium and base card strip, the grinding tank body is the cylinder, the jar mouth of the grinding tank body has reverse screw thread, sealed lid is T style of calligraphy cylinder, there is reverse screw thread and the jar mouth screw thread phase-match of the grinding tank body on the lower extreme cylinder of sealed lid, it has the round hole to open at sealed lid center, it has quartz glass to inlay in the round hole, it has a plurality of small circle holes that are used for evacuation and atmosphere of ventilating still to open around the round hole at sealed lid center, be equipped with the base card strip on the bottom outer wall of the grinding tank body, the base card strip is connected with the ceramic gasket in the rotatory overcoat of microwave heating.
The high-temperature multi-atmosphere microwave energy grinding equipment comprises a power mechanism, a power mechanism and a microwave heating rotating sleeve, wherein the power mechanism comprises a variable frequency speed regulating motor, a coupler, a power magnetofluid sealing device, a supporting bearing and a spline shaft, the power magnetofluid sealing device is installed on the left side of the multimode microwave resonant cavity, one end of the spline shaft penetrates through the power magnetofluid sealing device, the multimode microwave resonant cavity and the supporting bearing to be connected with the spline shaft sleeve of the microwave heating rotating sleeve, the other end of the spline shaft is sequentially connected with the coupler and the variable frequency speed regulating motor, and the supporting bearing is fixed.
The clamping mechanism comprises an electric sliding table, a clamping magnetic fluid sealing device, a welding corrugated pipe, a hollow thimble and a sliding bearing, the left end and the right end of the welding corrugated pipe are respectively connected with the multimode microwave resonance cavity and the clamping magnetic fluid sealing device, the clamping magnetic fluid sealing device is fixed on the electric sliding table, the lower end of the electric sliding table is fixed at the upper end of the rack, the head of the hollow thimble inwards penetrates through the clamping magnetic fluid sealing device, the welding corrugated pipe, the multimode microwave resonance cavity and the sliding bearing in sequence to be connected with a ceramic bearing of a microwave heating rotating outer sleeve, the tail of the hollow thimble is fixed with the clamping magnetic fluid sealing device together, and a double-color infrared thermometer for measuring the temperature of a grinding medium is arranged on the right.
The high-temperature multi-atmosphere microwave energy grinding equipment comprises a vacuum pump, a vacuum meter and a vacuum connector, wherein the vacuum pump is fixed on the lower portion of the rack, an exhaust pipe of the vacuum pump is welded on the multimode microwave resonance cavity, the vacuum meter and an air outlet valve are installed on the exhaust pipe, and a vacuum corrugated pipe of the vacuum pump is connected with the exhaust pipe through the vacuum connector.
Above-mentioned many atmospheres of high temperature microwave energy grinding device, the air-breather includes gas flowmeter, gas mixing tank, admission valve and air outlet valve, and the gas mixing tank is fixed in the frame lower part, and gas flowmeter fixes on the casing outer wall, and gas flowmeter one end links to each other with required air supply, and the other end links to each other with the gas mixing tank, and the gas mixing tank passes through the intake pipe and links to each other with multimode microwave resonance cavity, and the admission valve is installed in the intake pipe, and the air outlet valve is installed on multimode microwave resonance cavity's exhaust.
According to the high-temperature multi-atmosphere microwave energy grinding equipment, the power distribution control box is respectively connected with the variable-frequency speed regulating motor, the vacuum pump, the microwave source, the human-computer interface, the electric sliding table and the double-color infrared thermometer.
The utility model has the advantages that:
the utility model discloses a variable frequency speed motor is as rotary power, the microwave is as the heating source, polycrystal mullite fiber material or alumina fiber material are as penetrating ripples insulation material, inhale the wave sleeve as heating components and parts, microwave energy is direct or indirect to grinding media material heats, carry out high temperature anti-oxidation with the mode of aerifing or bleeding simultaneously to grinding media, the oxidation, the corrosion reaction, microwave input power is adjustable in succession, heating temperature, the atmosphere, rotational speed and pressure are controllable, the bicolor infrared thermometer temperature measurement accuse temperature that anti environment and electromagnetic interference ability are strong, can realize dielectric material at the electromagnetic wave, the rotational speed, the atmosphere, the measurement of wearing and tearing volume parameter under the harsh operational environment condition of approaching limit such as high temperature.
The utility model discloses a dielectric material is the initiative of wearing and tearing volume test technique in the many atmospheres environment of microwave high temperature, realizes the measurement of dielectric material's wearing and tearing volume parameter under electromagnetic wave, high temperature, many atmospheres, high-speed rotatory condition, is the major breakthrough of mastering dielectric material wearing and tearing volume test technique under the extreme condition of microwave field. Provides scientific data for the research of service performance of important engineering materials (materials in the fields of aerospace, nuclear power and wind power, advanced weapons, nuclear fission reactors and the like), and has innovation and practicability.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic structural view of a microwave-heated rotary polishing apparatus;
FIG. 5 is a schematic diagram of the construction of a microwave heated rotating jacket;
FIG. 6 is a schematic view of the structure of the polishing chamber.
The figures are labeled as follows: the device comprises a vacuum pump 1, a vacuum joint 2, a frame 3, a variable frequency speed regulation motor 4, a coupler 5, a spline shaft 6, a dynamic magnetic fluid sealing device 7, a shell 8, a man-machine interface 9, a multimode microwave resonance cavity 10, a furnace door 11, a microwave source 12, a welding corrugated pipe 13, a clamping magnetic fluid sealing device 14, a hollow thimble 15, a double-color infrared thermometer 16, an electric sliding table 17, an air inlet valve 18, a gas flowmeter 19, a power distribution control box 20, a gas mixing tank 21, an air outlet valve 22, a vacuum meter 23, a microwave heating rotary grinding device 24, a sliding bearing 25, a support bearing 26, a microwave heating rotary jacket 27, a grinding chamber 28, a spline shaft sleeve 29, a ceramic pin 30, a ceramic gasket 31, an annular metal basket 32, a wave-transmitting heat-insulating material 33, a wave-absorbing heating sleeve 34, a circular metal upper cover 35, a ceramic bearing 36, a base, And a sealing cover 40.
Detailed Description
Fig. 1, 2 and 3 show that the utility model is composed of a multi-mode microwave resonance chamber 10, a microwave source 12, a microwave heating rotary grinding device 24, a power mechanism, a clamping mechanism, a vacuum pumping mechanism, an air ventilation mechanism, a furnace door 11, a frame 3 and a shell 8.
The machine frame 3 is fixed at the lower part in the multimode microwave resonance cavity 10, the ventilation mechanism, the vacuum pumping mechanism and the power distribution control box 20 are installed in the machine frame 3, the multimode microwave resonance cavity 10 is of a circular double-layer vacuum structure, microwave sources 12 are respectively arranged on the upper surface, the lower surface and the rear surface of the outer wall of the multimode microwave resonance cavity 10, the power mechanism and the clamping mechanism are respectively installed at the left side and the right side of the multimode microwave resonance cavity 10, and a microwave heating rotary grinding device 24 is arranged in the multimode microwave resonance cavity 10. The microwave heating rotary grinding device 24 is composed of a microwave heating rotary outer sleeve 27 and a grinding chamber 28, the left side of the microwave heating rotary outer sleeve 27 is connected with a power mechanism, the right side of the microwave heating rotary outer sleeve 27 is connected with a clamping mechanism, and the grinding chamber 28 is positioned in the microwave heating rotary outer sleeve 27. The vacuumizing mechanism and the ventilation mechanism are respectively connected with the multimode microwave resonance chamber 10, and the oven door 11 is arranged in front of the multimode microwave resonance chamber 10. A bicolor infrared thermometer 16 for measuring the temperature of the grinding medium is arranged on the right side of the clamping mechanism.
Fig. 3, 4 and 5 show that the microwave heating rotary outer sleeve 27 of the microwave heating rotary grinding device 24 comprises a spline shaft sleeve 29, a ceramic pin 30, a ceramic gasket 31, a circular metal basket 32, a wave-transmitting heat-insulating material 33, a wave-absorbing heating sleeve 34, a circular metal upper cover 35 and a ceramic bearing 36.
Two circular metal upper covers 35 are respectively connected with two ends of the circular metal basket 32 by bolts, a spline shaft sleeve 29 is arranged at the center of one circular metal upper cover 35, the upper end of the spline shaft sleeve 29 is connected with a power part, and splines are arranged at the upper end of the spline shaft sleeve 29The bottom of the sleeve 29 is connected to a ceramic pin 30, a ceramic washer 31 is fastened to the ceramic pin 30 with a ceramic nut, and the ceramic washer 31 is connected to the grinding chamber 28 disposed in the microwave heating rotary casing 27. The center of the other circular metal upper cover 35 is provided with a circular hole with a T-shaped section, the diameter of the lower part of the circular hole with the T-shaped section is phi 6mm, the lower part of the circular hole with the T-shaped section is communicated with the grinding chamber 28, the upper end of the circular hole with the T-shaped section is embedded with a ceramic bearing 36, and the ceramic bearing 36 is connected with the clamping part. The wave-transparent heat-insulating material 33 is filled in the gap between the microwave heating rotating outer sleeve 27 and the grinding chamber 28, and the wave-absorbing heating sleeve 34 is sleeved on the periphery of the grinding chamber 28. The wave-transmitting heat-insulating material 33 is a wave-transmitting, air-permeable and heat-insulating polycrystalline mullite fiber material or alumina fiber material product, and the wave-absorbing heating sleeve 34 is 50% of SiC and 40% of MoSi2And 10% ZrB2The high-temperature ceramic product is formed.
Figures 3, 4 and 6 show that grinding chamber 28 includes grinding bowl 38, seal 40, grinding media 39 and base strip 37.
The grinding tank body 38 is a cylindrical alumina, zirconia or silicon nitride high-temperature product, the mouth of the grinding tank body 38 is provided with reverse threads, the sealing cover 40 is a T-shaped cylindrical alumina, zirconia or silicon nitride high-temperature product, the sealing cover 40 is also provided with the reverse threads, the center of the sealing cover 40 is provided with a round hole with the diameter of phi 6mm, quartz glass with the size of phi 6mm multiplied by 5mm is embedded in the round hole, the periphery of the round hole in the center of the sealing cover 40 is also provided with a plurality of small round holes with the diameter of phi 1mm for vacuumizing and ventilating atmosphere, the grinding tank body 38 and the sealing cover 40 are fastened by adopting a thread structure, the bottom of the grinding tank body 38 is provided with a base clamping strip 37, the base clamping strip 37 is connected with a ceramic gasket 31 in the microwave heating rotating outer sleeve 27, and a grinding medium 39 is placed.
The grinding medium 39 is mainly made of a heavy engineering material (materials in the engineering fields of aerospace, nuclear power wind power, advanced weapons, nuclear fission reactors and the like), and is in the shape of a sphere or a cylinder, wherein the sphere is phi 2 mm-phi 5mm in size, the cylinder is phi 2 mm-phi 5mm in size, and the cylinder is 2 mm-10 mm in length.
Fig. 1 and 3 show that the power mechanism comprises a variable frequency speed regulating motor 4, a coupler 5, a spline shaft 6, a power magnetic fluid sealing device 7 and a support bearing 26.
The power magnetic fluid sealing device 7 is installed on the left side of the multimode microwave resonance cavity 10, one end of the spline shaft 6 penetrates through the power magnetic fluid sealing device 7, the multimode microwave resonance cavity 10 and the supporting bearing 26 to be connected with the spline shaft sleeve 29 of the microwave heating rotating outer sleeve 27, the other end of the spline shaft 6 is sequentially connected with the coupler 5 and the variable-frequency speed regulating motor 4, the supporting bearing 26 is fixed in the multimode microwave resonance cavity 10 through the stainless steel supporting frame, and the rotating speed setting range of the variable-frequency speed regulating motor 4 is 30-300 r/min.
Fig. 1 and 3 show that the clamping mechanism comprises a hollow thimble 15, a sliding bearing 25, a welding corrugated pipe 13, a clamping magnetic fluid sealing device 14 and an electric sliding table 17.
The left end and the right end of the welding corrugated pipe 13 are respectively connected with the multimode microwave resonance cavity 10 and the clamping magnetic fluid sealing device 14, the clamping magnetic fluid sealing device 14 is fixed on the electric sliding table 17, the lower end of the electric sliding table 17 is fixed at the upper end of the frame 3, the head of the hollow thimble 15 penetrates through the clamping magnetic fluid sealing device 14, the welding corrugated pipe 13, the multimode microwave resonance cavity 10 and the sliding bearing 25 inwards in sequence to be connected with the ceramic bearing 36 of the microwave heating rotating outer sleeve 27, the tail of the hollow thimble 15 is fixed with the clamping magnetic fluid sealing device 14, and the right side of the clamping magnetic fluid sealing device 14 is provided with a bicolor infrared thermometer 16 for measuring. The inner hole of the hollow thimble 15 has a diameter of phi 6mm, and the tail of the hollow thimble 15 is packaged by quartz glass with the size of phi 6mm multiplied by 5 mm.
Fig. 1 and 2 show that the vacuumizing mechanism comprises a vacuum pump 1, a vacuum gauge 23 and a vacuum connector 2. The vacuum pump 1 is fixed on the lower part of the frame 3, an exhaust pipe of the vacuum pump 1 is welded on the multimode microwave resonance cavity 10, a vacuum meter 23 and an air outlet valve 22 are installed on the exhaust pipe, and a vacuum corrugated pipe of the vacuum pump 1 is connected with the exhaust pipe through a vacuum joint 2.
Fig. 1 and 2 show that the ventilation mechanism includes a gas flow meter 19, a gas mixing tank 21, an air inlet valve 18, and an air outlet valve 22. The gas mixing tank 21 is fixed on the lower part of the rack 3, the gas flowmeter 19 is fixed on the outer wall of the shell 8, one end of the gas flowmeter 19 is connected with a required gas source, the other end of the gas flowmeter is connected with the gas mixing tank 21, the gas mixing tank 21 is connected with the multimode microwave resonance cavity 10 through a gas inlet pipe, the gas inlet valve 18 is installed on the gas inlet pipe, and the gas outlet valve 22 is arranged on a gas exhaust pipe connected with the multimode microwave resonance cavity 10.
Fig. 1 and 2 show that a power distribution control box 20 is respectively connected with a variable frequency speed regulating motor 4, a vacuum pump 1, a microwave source 12, a man-machine interface 9, an electric sliding table 17 and a bicolor infrared thermometer 16.
The utility model discloses a microwave frequency of occurrence of microwave source 12 is 2450MHz, and microwave output is 300W ~4275W, and the highest use temperature of high temperature many atmospheres microwave energy grinding equipment is 1200 ℃, and variable frequency speed motor 4 rotational speed is 30~150 r/min.
The utility model discloses an embodiment as follows:
the vacuum pump 1 is a rotary vane vacuum pump TRP-12;
the length of the frame 3 is 1100mm, the width is 700mm, and the height is 600 mm;
the length of the shell 8 is 1400mm, the width is 930mm, and the height is 1500 mm;
the outer diameter of the multimode microwave resonance cavity 10 is 440mm, and the length is 540 mm;
the diameter of the welding corrugated pipe 13 is phi 114mmX phi 98mm, the length is 118mm, and the stroke is 70 mm;
the outer diameter phi of the hollow thimble 15 is 30mm, the wall thickness is 12mm, and the length is 345 mm;
the microwave heating rotary grinding device 24 has an outer diameter phi of 300 mm, a wall thickness of 10mm and a length of 270 mm;
the wave-transparent heat-insulating material 33 has an outer diameter phi of 280 mm, a wall thickness of 40mm and a length of 190 mm;
the wave-absorbing heating sleeve 34 has an outer diameter phi of 200mm, a wall thickness of 5mm and a length of 110 mm;
the outer diameter phi of the grinding chamber 28 is 180mm, the wall thickness is 8mm, and the length is 145 mm;
the model of the variable-frequency speed regulating motor 4 is YVF2-802-4;
The model of the dynamic magnetic fluid sealing device 7 and the clamping magnetic fluid sealing device 14 is SR 016;
the model of the human-computer interface 9 is Kunlun standard TPC7062 TX;
the model of the two-color infrared thermometer 16 is German Saiteng MQ22MB 13;
the types of the air inlet valve 18 and the air outlet valve 22 are Ningbo Hello NV-02M-02F-PT and NV-02F-02M-PT;
the gas flow meter 19 is of the type OMEGA FLD 2001;
the vacuum gauge 23 is YN-63 and has the model of-0.1 MPa to 0.06 MPa.
An embodiment of the present invention employs the following steps:
step 1: starting a main power supply of the equipment, and checking whether each part and a control instrument are normal;
step 2: the dielectric material 39 to be measured is a zirconia ceramic ball, and the size of the material is phi 2 mm;
and step 3: analytical balance was used with a pestris ES420A reading accuracy of 0.1 mg;
and 4, step 4: the corundum grinding tank body 38 and the sealing cover 40 are made of alumina corundum, and whether the threads of the grinding tank body 38 and the sealing cover 40 are complete and can be tightly screwed is checked;
and 5: pouring the weighed media material 39 into the grinding tank 38, covering the sealing cover 40 and screwing tightly;
step 6: putting a cylindrical wave-transparent heat-insulating material 33 in a circular metal basket 32, enabling a ceramic pin 30 at the bottom of a microwave heating rotating jacket 27 to penetrate through the bottom of the wave-transparent heat-insulating material 33, sleeving a ceramic gasket 31 with a clamping groove on the ceramic pin 30, pressing the wave-transparent heat-insulating material 33 tightly, and screwing a ceramic nut on the ceramic gasket 31;
and 7: putting the wave-absorbing heating sleeve 34 into the wave-transparent heat-insulating material 33;
and 8: placing the prepared step 5 in a wave-absorbing heating sleeve 34, tightly clamping a base clamping strip 37 of the grinding chamber 28 in a ceramic gasket clamping groove of a microwave heating rotating jacket 27, screwing 8 aluminum oxide ceramic screws from outside to inside in sequence on the periphery of the waist of a circular metal basket 32 to tightly press the outer wall of a grinding tank body 38 through the circular metal basket 32, a wave-transmitting heat-insulating material 33 and the wave-absorbing heating sleeve 34, re-fastening the grinding chamber 28, finally covering an upper cover of the wave-transmitting heat-insulating material and an upper cover 35 of circular metal, and fastening the circular metal basket 32 and the upper cover 35 of circular metal by nuts, so that the microwave heating rotating grinding device 24 is prepared;
and step 9: opening the furnace door 11, observing the position of the head part of the hollow thimble in the multimode microwave resonance cavity 10, clicking an electric sliding table outward movement key on the human-computer interface 9, driving a clamping magnetic fluid sealing device 14 fixed with the tail part of the hollow thimble by the electric sliding table 17, stretching and welding the corrugated pipe 13 by the clamping magnetic fluid sealing device 14, enabling the hollow thimble 15 to slide outward in the sliding bearing 25, and automatically stopping the electric sliding table 17 from the position of an outer limit switch;
step 10: then sending the prepared microwave heating rotary grinding device 24 into the multimode microwave resonance chamber 10, and flatly aligning the end to ensure that the spline shaft sleeve 29 of the microwave heating rotary outer sleeve 27 is connected with the spline shaft 6 of the power mechanism;
step 11: clicking an inward moving key of the electric sliding table on a human-computer interface 9, driving a clamping magnetic fluid sealing device 14 fixed with the tail part of a hollow thimble by the electric sliding table 17, compressing and welding a corrugated pipe 13 by the clamping magnetic fluid sealing device 14, enabling the hollow thimble 15 to slide inwards in a sliding bearing 25, enabling the head part of the hollow thimble to be inserted into a ceramic bearing 36 of a microwave heating rotating outer sleeve 27, and automatically stopping until the position of a limit switch in the electric sliding table is reached, so that spline shaft sleeves 39 and the ceramic bearings 36 at the left end and the right end of the microwave heating rotating outer sleeve 27 are respectively connected with and fixed with a spline shaft 6 of a power mechanism and the hollow thimble 15 of a;
step 12: adjusting a bicolor infrared thermometer 16, clicking a temperature measuring button on a human-computer interface 9, adjusting the position and the angle of the bicolor infrared thermometer 16, enabling the infrared rays of the bicolor infrared thermometer 16 to sequentially pass through a hollow thimble 15, a circular metal upper cover 35, a wave-transparent heat-insulating material upper cover and a central circular hole of a sealing cover 40, observing a target to be measured through an eyepiece, enabling the center of an infrared circular point to fall on the target to be measured as far as possible, fixing the bicolor infrared thermometer 16, and closing a furnace door 11;
step 13: vacuumizing, closing the air inlet valve 18 and the air outlet valve 22 in sequence, clicking a vacuum pump starting button on the human-computer interface 9, starting vacuumizing by the vacuum pump 1, observing the reading of a vacuum gauge, clicking a vacuum pump closing button on the human-computer interface 9 after the vacuum degree is lower than 10Pa, and stopping the vacuum pump 1;
step 14: introducing an atmosphere to introduce the required N2Gas cylinder and SO2The gas cylinders are respectively connected with reserved interfaces of the gas flow meters, and N is respectively opened2Gas cylinder and SO2Adjusting gas flowmeter parameters N while introducing gas into gas cylinder ball valve2Flow rate of 0.5L/min, SO2The flow rate is 0.3L/min, and the required N is2And SO2After entering the gas mixing tank 21 for mixing, the gas inlet valve 18 is opened again, and N is introduced2And SO2Mixing gas, observing a vacuum meter 23, and opening an air outlet valve 22 to ensure smooth air flow when the gauge pressure is slightly larger than one atmosphere;
step 15: setting parameters, namely setting parameters such as temperature, time, rotating speed, microwave output power and the like on a human-computer interface 9, wherein the temperature is 1200 ℃, the temperature rise time is 1h, the heat preservation time is 72h, the rotating speed is 80r/min, and the microwave output power is 4275W;
step 16: after the parameter setting is finished, clicking a start key of the human-computer interface equipment, and starting the equipment;
and step 17: after the equipment runs to the set end time, the variable frequency speed regulating motor 4 and the microwave source 12 are automatically powered off and stop working, and N is sequentially closed when the temperature in the grinding chamber 28 is reduced to below 50 DEG C2Gas cylinder and SO2A cylinder ball valve, an inlet valve 18 and an outlet valve 22;
step 18: opening the oven door 11, holding the microwave heating rotary grinding device 24 installed in the multimode microwave resonance cavity 10, clicking an electric sliding table on the human-computer interface 9 to move a key outwards, driving a clamping magnetic fluid sealing device 14 fixed with the tail part of a hollow thimble by the electric sliding table 17, stretching and welding the corrugated pipe 13 by the clamping magnetic fluid sealing device 14 to enable the hollow thimble 15 to slide outwards in a sliding bearing 25, separating the head part of the hollow thimble from a ceramic bearing 36 of the microwave heating rotary outer sleeve 27, automatically stopping the electric sliding table 17 to an external limit switch position, then loosening the connection between a spline shaft sleeve 29 at the bottom of the microwave heating rotary outer sleeve 27 and a spline shaft 6 of a power mechanism, and then taking out the microwave heating rotary grinding device 24 from the multimode microwave resonance cavity 10;
step 19: sequentially unscrewing a fastening nut of the circular metal upper cover 35 of the microwave heating rotating jacket 27 and 8 aluminum oxide ceramic fastening screws screwed at the periphery of the waist of the circular metal basket 32, taking down the circular metal upper cover 35 and the upper cover of the wave-transparent heat-insulating material, and finally taking out the grinding chamber 28;
step 20: unscrewing a sealing cover 40 of the grinding tank body 38, pouring the medium material 39 into a clean stainless steel tray prepared in advance, pouring the medium material 39 in the stainless steel tray into a cleaning tank of an ultrasonic cleaning machine, washing the grinding powder by using an organic solvent as a cleaning agent, and cleaning for multiple times;
step 21: the microwave heating rotary outer sleeve 27, the alumina ceramic fastening screw, the grinding tank body 38 and the sealing cover 40 are picked up and sorted for standby;
step 22: drying the cleaned dielectric material 39 in a vacuum drying oven for 8 hours at the set temperature of 80 ℃ and the vacuum degree of-0.1 Mpa;
step 23: the dried medium material 39 is put into a model ES420A analytical balance, and the reading precision is 0.1mg
Step 24: data acquisition, data interpretation and analysis, and calculation of the amount of wear of the grinding media 39.

Claims (8)

1. The utility model provides a high temperature many atmospheres microwave energy grinding device which characterized in that: the microwave heating rotary grinding device comprises a multimode microwave resonance chamber (10), a microwave source (12), a microwave heating rotary grinding device (24), a power mechanism, a clamping mechanism, a vacuumizing mechanism, a ventilating mechanism, a furnace door (11), a rack (3) and a shell (8), wherein the rack (3) is fixed at the lower part in the multimode microwave resonance chamber (10), the ventilating mechanism, the vacuumizing mechanism and a power distribution control box are installed in the rack (3), the multimode microwave resonance chamber (10) is of a circular double-layer vacuum structure, the microwave sources (12) are respectively arranged on the upper surface, the lower surface and the rear surface of the outer wall of the multimode microwave resonance chamber (10), the power mechanism and the clamping mechanism are respectively installed at the left side and the right side of the multimode microwave resonance chamber (10), the microwave heating rotary grinding device (24) is arranged in the multimode microwave resonance chamber (10), and the microwave heating rotary grinding device (24) consists of a microwave heating rotary, the left side of the microwave heating rotating outer sleeve (27) is connected with a power mechanism, the right side of the microwave heating rotating outer sleeve (27) is connected with a clamping mechanism, the grinding chamber (28) is positioned in the microwave heating rotating outer sleeve (27), the vacuumizing mechanism and the ventilating mechanism are respectively connected with the multimode microwave resonance chamber (10), and the oven door (11) is installed in front of the multimode microwave resonance chamber (10).
2. The high temperature multi-atmosphere microwave energy milling apparatus of claim 1, characterized in that: the microwave heating rotary outer sleeve (27) of the microwave heating rotary grinding device (24) comprises a spline shaft sleeve (29), ceramic pins (30), ceramic gaskets (31), circular metal baskets (32), wave-transmitting heat-insulating materials (33), wave-absorbing heating sleeves (34), circular metal upper covers (35) and ceramic bearings (36), wherein the two circular metal upper covers (35) are respectively connected to two ends of the circular metal baskets (32) through bolts, the spline shaft sleeve (29) is installed at the center of one circular metal upper cover (35), the upper end of the spline shaft sleeve (29) is connected with a power part, the bottom of the spline shaft sleeve (29) is connected with the ceramic pins (30), the ceramic gaskets (31) are fastened on the ceramic pins (30) through ceramic nuts, the ceramic gaskets (31) are connected with a grinding chamber (28) placed in the microwave heating rotary outer sleeve (27), a T-shaped section round hole is formed in the center of the other circular metal upper cover (35), the lower portion of the T-shaped section round hole is communicated with the grinding chamber (28), a ceramic bearing (36) is embedded in the upper end of the T-shaped section round hole, the ceramic bearing (36) is connected with the clamping portion, a wave-transparent heat-insulation material (33) is filled in a gap between the microwave heating rotating outer sleeve (27) and the grinding chamber (28), and the wave-absorbing heating sleeve (34) is sleeved on the periphery of the grinding chamber (28).
3. The high temperature multi-atmosphere microwave energy milling apparatus of claim 1, characterized in that: the grinding chamber (28) comprises a grinding tank body (38), a sealing cover (40), a grinding medium (39) and a base clamping strip (37), the grinding tank body (38) is a cylinder, a tank opening of the grinding tank body (38) is provided with reverse threads, the sealing cover (40) is a T-shaped cylinder, the lower end cylinder of the sealing cover (40) is provided with the reverse threads matched with the tank opening threads of the grinding tank body (38), a round hole is formed in the center of the sealing cover (40), quartz glass is embedded in the round hole, a plurality of small round holes used for vacuumizing and ventilating atmosphere are further formed around the round hole in the center of the sealing cover (40), the base clamping strip (37) is arranged on the outer wall of the bottom of the grinding tank body (38), the base clamping strip (37) is connected with a ceramic gasket (31) in a microwave heating rotating outer sleeve (27), and the grinding medium (39) is placed in.
4. The high temperature multi-atmosphere microwave energy milling apparatus of claim 1, characterized in that: the power mechanism comprises a variable-frequency speed regulating motor (4), a coupler (5), a power magnetic fluid sealing device (7), a support bearing (26) and a spline shaft (6), the power magnetic fluid sealing device (7) is installed on the left side of the multimode microwave resonance chamber (10), one end of the spline shaft (6) penetrates through the power magnetic fluid sealing device (7), the multimode microwave resonance chamber (10) and the support bearing (26) are connected with a spline shaft sleeve (29) of a microwave heating rotating outer sleeve (27), the other end of the spline shaft (6) is sequentially connected with the coupler (5) and the variable-frequency speed regulating motor (4), and the support bearing (26) is fixed in the multimode microwave resonance chamber (10) through a stainless steel support frame.
5. The high temperature multi-atmosphere microwave energy milling apparatus of claim 1, characterized in that: the clamping mechanism comprises an electric sliding table (17), a clamping magnetic fluid sealing device (14), a welding corrugated pipe (13), a hollow thimble (15) and a sliding bearing (25), the left end and the right end of a welding corrugated pipe (13) are respectively connected with a multimode microwave resonance cavity (10) and a clamping magnetic fluid sealing device (14), the clamping magnetic fluid sealing device (14) is fixed on an electric sliding table (17), the lower end of the electric sliding table (17) is fixed at the upper end of a rack (3), the head of a hollow thimble (15) sequentially penetrates through the clamping magnetic fluid sealing device (14), the welding corrugated pipe (13), the multimode microwave resonance cavity (10) and a sliding bearing (25) inwards to be connected with a ceramic bearing (36) of a microwave heating rotating outer sleeve (27), the tail of the hollow thimble (15) is fixed with the clamping magnetic fluid sealing device (14), and a bicolor infrared thermometer (16) for measuring the temperature of a grinding medium is arranged on the right side of the clamping magnetic fluid sealing device (.
6. The high temperature multi-atmosphere microwave energy milling apparatus of claim 1, characterized in that: the vacuumizing mechanism comprises a vacuum pump (1), a vacuum meter (23) and a vacuum connector (2), the vacuum pump (1) is fixed to the lower portion of the rack (3), an exhaust pipe of the vacuum pump (1) is welded to the multimode microwave resonant cavity (10), the vacuum meter (23) and an air outlet valve (22) are installed on the exhaust pipe, and a vacuum corrugated pipe of the vacuum pump (1) is connected with the exhaust pipe through the vacuum connector (2).
7. The high temperature multi-atmosphere microwave energy milling apparatus of claim 1, characterized in that: the ventilation mechanism comprises a gas flow meter (19), a gas mixing tank (21), a gas inlet valve (18) and a gas outlet valve (22), the gas mixing tank (21) is fixed on the lower portion of the rack (3), the gas flow meter (19) is fixed on the outer wall of the shell (8), one end of the gas flow meter (19) is connected with a required gas source, the other end of the gas flow meter is connected with the gas mixing tank (21), the gas mixing tank (21) is connected with the multimode microwave resonance cavity (10) through the gas inlet pipe, the gas inlet valve (18) is installed on the gas inlet pipe, and the gas outlet valve (22) is installed on the exhaust pipe of the multimode.
8. The high temperature multi-atmosphere microwave energy milling apparatus of claim 1, characterized in that: the power distribution control box (20) is respectively connected with the variable-frequency speed regulation motor (4), the vacuum pump (1), the microwave source (12), the human-computer interface (9), the electric sliding table (17) and the bicolor infrared thermometer (16).
CN202020602783.1U 2020-04-21 2020-04-21 High-temperature multi-atmosphere microwave energy grinding equipment Active CN212600653U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114184634A (en) * 2021-12-09 2022-03-15 贵州师范大学 Temperature deformation method and device under controllable medium
CN116810619A (en) * 2023-08-09 2023-09-29 哈尔滨工业大学 Chemical mechanical polishing device based on microwave assistance and polishing CaF by using same 2 Method for wafer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114184634A (en) * 2021-12-09 2022-03-15 贵州师范大学 Temperature deformation method and device under controllable medium
CN114184634B (en) * 2021-12-09 2024-02-02 贵州师范大学 Temperature deformation method and device under controllable medium
CN116810619A (en) * 2023-08-09 2023-09-29 哈尔滨工业大学 Chemical mechanical polishing device based on microwave assistance and polishing CaF by using same 2 Method for wafer
CN116810619B (en) * 2023-08-09 2024-04-02 哈尔滨工业大学 Chemical mechanical polishing device based on microwave assistance and polishing CaF by using same 2 Method for wafer

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Patentee after: Tangshan Ren Yuan Microwave Instrument Co.,Ltd.

Country or region after: China

Address before: 063000 Han Cheng Town, Lubei District, Tangshan City, Hebei Province, China. 300 meters north of the intersection of Jing 14th Road and Guoxuan Road

Patentee before: TANGSHAN RENSHI CEMENT EQUIPMENT Corp.,Ltd.

Country or region before: China