CN113954268B - Medium sheet cleaning system of rubber powder microwave desulfurization equipment - Google Patents
Medium sheet cleaning system of rubber powder microwave desulfurization equipment Download PDFInfo
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- CN113954268B CN113954268B CN202111263099.0A CN202111263099A CN113954268B CN 113954268 B CN113954268 B CN 113954268B CN 202111263099 A CN202111263099 A CN 202111263099A CN 113954268 B CN113954268 B CN 113954268B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B2017/001—Pretreating the materials before recovery
- B29B2017/0015—Washing, rinsing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The invention discloses a medium sheet cleaning system of rubber powder microwave desulfurization equipment, which comprises a controller, a microwave amplitude monitor, an online microwave plasma cleaning device and a medium sheet automatic replacement cleaning device, wherein the microwave amplitude monitor detects microwave amplitudes at the upper side and the lower side of a medium sheet, when the difference value of the microwave amplitude monitor and the medium sheet is larger than a set value, the controller drives the online microwave plasma cleaning device to clean the medium sheet in a microwave conduit on line without stopping, and when the difference value of the microwave amplitudes at the two ends of the medium sheet is smaller than the set value, the online cleaning is finished; when the difference value of the microwave amplitudes at two ends of the medium sheet after on-line cleaning is still larger than a set value, the controller sends a stop signal to the rubber powder microwave desulfurization equipment and drives the medium sheet automatic replacement cleaning device to automatically replace the medium sheet, and clean the polluted medium sheet off-line. The invention has high automation degree, accurate and stable operation, saves the working time of desulfurization, achieves the aim of saving the working time through automatic management, and greatly improves the working efficiency of rubber powder desulfurization.
Description
Technical Field
The invention belongs to the technical field of rubber asphalt production equipment, and particularly relates to a medium sheet cleaning system of rubber powder microwave desulfurization equipment.
Background
With the continuous improvement of the living standard of people, the keeping amount of private cars and the number of trucks are improved year by year, so that a large number of waste tires can be produced each year, and how to properly treat the waste tires has become one of the global important environmental protection problems. The method and the technical approach for the recycling treatment of the waste tire rubber are researched, which not only is beneficial to protecting the environment, but also can realize the recycling of high-value components contained in the waste tire rubber.
The rubber powder is prepared from the waste tires of automobiles, and the rubber powder is added into matrix asphalt according to a certain proportion to prepare the rubber asphalt. After microwave radiation is carried out on the rubber powder by the microwave desulfurization equipment, the rubber powder becomes activated rubber powder, and the performance of the rubber asphalt can be obviously improved. Under the microwave radiation, the rubber powder can generate a large amount of smoke, and the smoke can wrap dust in the rubber powder to float upwards together, so that the dust is adhered to a medium sheet of a microwave feed port, and the medium sheet is burnt out, thereby affecting the normal operation of equipment. And the medium piece is connected by two flange plates of multiunit bolt-up and is pressed from both sides tightly, so the change of medium piece and clean needs the manual work to carry out loaded down with trivial details dismantlement and installation, when wasting time and energy, has seriously influenced the whole working process of desulfurization equipment. Therefore, developing and designing a medium sheet cleaning system of rubber powder microwave desulfurization equipment is an urgent problem to be solved in the field.
Disclosure of Invention
The invention aims to provide a medium sheet cleaning system of rubber powder microwave desulfurization equipment, and aims to solve the technical problems that in the prior art, medium sheets in the rubber powder microwave desulfurization equipment need to be manually replaced and cleaned, and the loading and unloading operations are complex, and the labor and the effort are wasted.
In order to solve the technical problems, the invention adopts the following technical scheme:
the medium sheet cleaning system of the rubber powder microwave desulfurization equipment comprises a microwave amplitude monitor, an online microwave plasma cleaning device and a medium sheet automatic replacement cleaning device, wherein the microwave amplitude monitor is respectively connected with the online microwave plasma cleaning device and the medium sheet automatic replacement cleaning device through a controller; the microwave amplitude monitor can detect the amplitude values of microwave amplitudes at the upper side and the lower side of the medium sheet in the microwave guide tube, when the difference value of the amplitude values is larger than a set value, the controller drives the online microwave plasma cleaning device to clean the medium sheet in the microwave guide tube in an online manner, and when the difference value of the microwave amplitudes at the two ends of the medium sheet is smaller than the set value, the online cleaning is finished; when the difference value of the microwave amplitudes at two ends of the medium sheet after on-line cleaning is still larger than a set value, the controller sends a stop signal to the rubber powder microwave desulfurization equipment and drives the medium sheet automatic replacement cleaning device to automatically replace the medium sheet, and clean the polluted medium sheet off-line. The medium plate is made of polytetrafluoroethylene, ceramic or mica.
Preferably, the microwave amplitude monitor comprises a microwave receiver, an oscilloscope and a filter, wherein the microwave receiver comprises a microwave collecting ring A and a microwave collecting ring B which are arranged on the upper and lower sides of the dielectric sheet, the microwave collecting ring A and the microwave collecting ring B are respectively connected with the oscilloscope through the filter, the oscilloscope is connected with an upper computer of the controller, and the online microwave plasma cleaning device and the dielectric sheet automatic replacement cleaning device are controlled by the controller.
Preferably, the automatic medium sheet replacing and cleaning device comprises a frame with a cleaning station and a drying station and a transposition mechanism for replacing the medium sheet, wherein a microwave guide pipe with the medium sheet arranged inside vertically penetrates through the frame, the transposition mechanism is arranged on one side of a micro waveguide tube, and the cleaning station and the drying station are arranged on the other side of the micro waveguide tube and are used for cleaning and drying the medium sheet; the medium sheet is fixed in the micro waveguide tube through the clamping mechanism, the transposition mechanism and the clamping mechanism are connected with the controller, and the actions of the clamping mechanism and the transposition mechanism are controlled according to microwave signals detected by the microwave amplitude monitor, so that the medium sheet can be automatically replaced. Wherein, the cleaning station is provided with an ultrasonic cleaning tank, and ultrasonic waves are utilized to clean the medium sheet.
Preferably, the clamping mechanism comprises an upper flange and a lower flange which are in sealing fit, the medium sheet is horizontally arranged between the two flanges, the lower flange is fixed on the frame, and the upper flange can move up and down along a slideway on the frame and is used for loosening and clamping the medium sheet; the stand on two sides of the microwave catheter is respectively provided with a standby medium piece placing table and a standby washing medium piece placing table, the standby medium piece placing table is arranged between the micro waveguide tube and the transposition mechanism, and the standby washing medium piece placing table is arranged between the micro waveguide tube and the washing station; the outside of ring flange is equipped with the gum cover, is equipped with pressure sensor between two ring flanges for show whether the ring flange presss from both sides tightly.
Preferably, the lower end hole mouth of the upper flange plate is provided with a spigot matched with the medium sheet, the top of the spigot and the bottom surface of the upper flange plate are both provided with sealing grooves for placing sealing rings, and the sealing performance of the microwave guide tube is ensured through the sealing rings.
Preferably, the flange plate is an electromagnetic flange plate connected with the controller, and the two electromagnetic flange plates are electrified in the same direction or in opposite directions to loosen or clamp the medium sheet in the microwave guide tube. And controlling the electromagnetic flange plate to implement clamping or loosening commands according to the microwave signals detected by the microwave receiver in the microwave guide tube.
Preferably, the top of the frame is provided with an electric sucking disc connected with the controller, and four vacuum sucking discs are distributed at four corners of the bottom of the electric sucking disc and are used for sucking the medium sheets; the machine frame is provided with a guide rail matched with the electric sucking disc, so that the electric sucking disc moves among the drying station, the cleaning station, the standby washing medium piece placing table and the standby medium piece placing table.
Preferably, the transposition mechanism comprises a rack push rod and a rotating part, a gear is arranged at the bottom of the rack push rod, a tooth shape meshed with the gear is arranged on the lower surface of the rack push rod, one end of the rack push rod is connected with the rotating part, and the rotating part can drive the rack push rod to enable the free end of the rack push rod to push the spare medium piece on the spare medium piece placing table to replace the medium piece in the micro waveguide tube.
Preferably, the gear is arranged on a bracket, and a positioning ring sleeved on the rack push rod is also arranged on the bracket; the driving motors of the support and the rotating part are arranged on the supporting table.
Preferably, the rotating component comprises a driving motor, a turntable and a vertical guide rod, wherein an output shaft of the driving motor is coaxially fixed with the turntable, an eccentric shaft is arranged on the outer side surface of the turntable, and the middle part of the vertical guide rod is connected with a rack push rod; the vertical guide rod is provided with a vertical guide groove, and the eccentric shaft is arranged in the vertical guide groove.
Preferably, the online microwave plasma cleaning device comprises a discharging part and a telescopic mechanism, wherein the discharging part comprises a plurality of metal needles, one ends of the metal needles are fixed on the arc-shaped plate, and the other ends of the metal needles can enter the microwave catheter along pinholes on the side wall of the microwave catheter; the arc-shaped plate is connected with the telescopic mechanism, and the telescopic mechanism is connected with the controller; the metal needle can ionize air in the microwave catheter and introduced argon gas in the discharging process to generate oxygen plasma and argon plasma, and can remove pollutants on the surface of the dielectric sheet.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: compared with the prior art, the microwave amplitude monitoring device detects the amplitudes of the microwave amplitudes at the upper side and the lower side of the medium sheet, when the difference value of the amplitudes is larger than a set value, the controller drives the online microwave plasma cleaning device to clean the medium sheet in the microwave guide tube on line without stopping, and when the difference value of the microwave amplitudes at the two ends of the medium sheet is smaller than the set value, the online cleaning is finished; when the difference value of the microwave amplitudes at two ends of the medium sheet after on-line cleaning is still larger than a set value, the controller sends a stop signal to the rubber powder microwave desulfurization equipment and drives the medium sheet automatic replacement cleaning device to automatically replace the medium sheet, and clean the polluted medium sheet off-line. The invention has high degree of automation, convenient and quick control, accurate and stable operation, ensures the continuous and stable working time of the microwave desulfurization equipment, saves the medium sheet replacement time, and greatly improves the working efficiency of rubber powder desulfurization.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of a medium sheet automatic replacement and cleaning device in a medium sheet cleaning system of a rubber powder microwave desulfurization device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a clamping mechanism according to an embodiment of the present invention;
FIG. 3 is a side view of a indexing mechanism in an embodiment of the invention;
FIG. 4 is a schematic diagram illustrating a control of a cleaning process of a media sheet according to the present invention;
FIG. 5 is a schematic structural diagram of an online microwave plasma cleaning device in a media sheet cleaning system of a rubber powder microwave desulfurization device according to an embodiment of the present invention;
in the figure: 1. an electrical suction cup; 2. a clamping device; 3. a frame; 4. a spare media sheet; 5. a positioning ring; 6. a turntable; 7. a support frame; 8. a support table; 9. a rack push rod; 10. a gear; 11. a standby media sheet placement stage; 12. a media sheet; 13. a microwave catheter; 14. a standby washing medium sheet placing table; 15. a cleaning station; 16. a drying station; 17. a driving motor; 18. a metal needle; 19. an arc-shaped plate; 20. a turntable;
21. a small T-shaped slot; 22. a microwave collecting ring A; 23. a flange plate; 24. a large T-shaped slot; 25. a microwave collecting ring B; 26. a bracket; 27. a vertical guide bar; 28. an eccentric shaft; 29. vertical guide slot.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a medium sheet cleaning system of rubber powder microwave desulfurization equipment, which comprises a microwave amplitude monitor, an online microwave plasma cleaning device and a medium sheet automatic replacement cleaning device, wherein the microwave amplitude monitor is respectively connected with the online microwave plasma cleaning device and the medium sheet automatic replacement cleaning device through controllers; the microwave amplitude monitor can detect the amplitudes of microwave amplitudes on the upper side and the lower side of a medium sheet in a microwave catheter, as shown in fig. 4: when the difference value of the two is larger than a set value, the controller drives the online microwave plasma cleaning device to clean the medium sheet in the microwave guide pipe by online microwave plasma, and when the difference value of the microwave amplitudes at the two ends of the medium sheet is smaller than the set value, the online cleaning is finished; when the difference value of the microwave amplitudes at two ends of the medium sheet after on-line cleaning is still larger than a set value, the controller sends a stop signal to the rubber powder microwave desulfurization equipment and drives the medium sheet automatic replacement cleaning device to automatically replace the medium sheet, and clean the polluted medium sheet off-line. The medium sheet 12 is made of polytetrafluoroethylene, ceramic or mica, is easy to be polluted by flue gas, and judges the pollution degree of the medium sheet by monitoring the difference value of microwave amplitudes at two sides of the medium sheet through a microwave amplitude monitor.
In a specific embodiment of the present invention, the microwave amplitude monitor includes a microwave receiver, an oscilloscope, and a filter, as shown in fig. 2, where the microwave receiver includes a microwave collecting ring a22 and a microwave collecting ring B25 disposed above and below the dielectric sheet 12, the microwave collecting ring a22 and the microwave collecting ring B25 are respectively connected to the oscilloscope through the filter, the oscilloscope is connected to an upper computer of the controller, and the controller controls the online microwave plasma cleaning device and the dielectric sheet automatic replacement cleaning device.
The measures of the cleaning medium sheet in the present invention are divided into two steps: performing non-stop on-line cleaning on the medium sheet by adopting a microwave plasma cleaning mode of an on-line microwave plasma cleaning device; along with the production, the increase of the cleaning times is carried out, the intractable pollutants which are not easy to clean are gradually accumulated, when the microwave plasma cleaning mode cannot achieve the ideal cleaning effect, the rubber powder microwave desulfurization equipment is stopped, and the medium sheet is automatically replaced by the medium sheet automatic replacement cleaning device and is cleaned off line. The cleaning flow of the media sheet is shown in fig. 4.
In one embodiment of the present invention, as shown in fig. 5, the on-line microwave plasma cleaning device includes a discharging part and a telescopic mechanism, the discharging part includes a plurality of metal needles 18, one ends of the metal needles 18 are fixed on an arc plate 19, and the other ends of the metal needles 18 can enter the interior of the microwave catheter 13 along pinholes on the side wall of the microwave catheter 13; the arc-shaped plate 19 is connected with a telescopic mechanism, and the telescopic mechanism is connected with a controller; the metal needle 18 can ionize air in the microwave guide tube 13 and introduced argon gas in the discharging process to generate oxygen plasma and argon plasma, and can remove pollutants on the surface of the dielectric sheet. In fig. 5, the number of the metal pins may be specifically designed according to the actual situation (the drawing is only schematically illustrated); the telescopic mechanism comprises a rotary table 20 and a driving part (not shown in the figure) controlled by the controller, wherein the driving part can adopt a micro motor, threads are arranged on the surface of the rotary table 20 and the bottom of the arc-shaped plate 19, and the arc-shaped plate 19 is in threaded fit with the surface of the rotary table 20. The controller controls the forward and backward rotation of the turntable by controlling the rotation direction of the micro motor, so that the arc plate drives the metal needle to do radial telescopic motion along the surface of the turntable, and the metal needle can radially move along the needle hole of the microwave catheter, thereby realizing the purpose that the metal needle enters and exits the microwave catheter.
In view of the fact that the rubber powder of the rubber powder microwave desulfurization equipment adheres to pollutants on the medium sheet in the activation process, the pollutants are mainly non-volatile organic matters and micro-particle pollutants. The working flow of the online microwave plasma cleaning device is as follows:
(1) The microwave amplitude monitor monitors the amplitude values of microwave amplitudes at two ends of the medium sheet in real time, and when the difference value between the two amplitude values is larger than a set value, an online microwave plasma cleaning device is started;
the metal needle enters the microwave catheter through the telescopic mechanism, and under the induction of microwaves, the metal needle carries out glow discharge, ionizes air and introduced argon gas, and generates oxygen plasma and argon plasma. The oxygen plasma changes non-volatile organic matters adhered on the medium sheet into volatile water vapor and carbon dioxide through chemical reaction; the argon plasma is attracted by the dielectric sheet under the action of an externally-applied bias voltage, is accelerated to generate kinetic energy under the action of the electric field force of the dielectric sheet, and then bombards the surface of the negatively-charged dielectric sheet, so that the micro-particle pollutants are removed. Wherein, particles generated by argon ionization are heavier, and the kinetic energy of argon ions is higher than that of other inert gases under the action of an electric field.
The dielectric sheet is subjected to strong external electric field in advance, polarization phenomenon appears, polarization charges exist on the surface and in the body of the dielectric body in a permanent mode, the polarization charges do not completely disappear along with the removal of the external electric field, and electrostatic acting force can be generated under the condition of no external electric field.
When the difference value of the microwave amplitudes at the two ends of the medium sheet is smaller than a set value, the online cleaning process is finished, and the metal needle exits the microwave guide tube through the telescopic mechanism, so that normal production cannot be influenced in the whole cleaning process.
Example 1: defining the power loss rate A=the difference value of the microwave amplitudes at two ends/the upper microwave amplitude value of the dielectric sheet; when A=20%, the microwave plasma cleaning device is started, and in order to ensure the cleaning effect, the metal needles adopt 20 metal tungsten needles, all the metal needles extend into the microwave guide tube, the rear end of the medium sheet is provided with the largest discharge power, and the ionization efficiency for generating oxygen and argon plasmas is the highest.
Along with the cleaning, the pollutant is reduced, the discharge power is reduced, the energy is saved, and the number of tungsten needles extending into the microwave catheter is reduced: n=100deg.A, when A is less than 2%, the cleaning process is finished and the metal needle exits the microwave catheter through the telescoping mechanism.
(2) Along with the progress of production and the increase of cleaning times, the pollutants which are not easy to clean gradually accumulate, when the on-line cleaning mode cannot achieve the ideal cleaning effect in a specified reasonable time, the equipment is stopped, the medium sheet is automatically replaced, and the off-line cleaning is performed.
In one embodiment of the present invention, as shown in fig. 1, the automatic medium sheet replacing and cleaning device includes a frame 3 with a cleaning station 15 and a drying station 16, and a transposition mechanism for replacing the medium sheet, wherein a microwave guide tube 13 with a built-in medium sheet 12 is vertically arranged through the frame 3, the transposition mechanism is arranged at one side of the microwave guide tube 13, and the cleaning station 15 and the drying station 16 are arranged at the other side of the microwave guide tube 13, and are used for cleaning and drying the medium sheet; the medium sheet 12 is fixed in the microwave guide pipe 13 through the clamping mechanism 2, and the transposition mechanism and the clamping mechanism are connected with the controller and used for enabling the clamping mechanism 2 and the transposition mechanism to replace the medium sheet according to the microwave signal change detected by the microwave amplitude monitor, so that the automation degree is high. Wherein, the cleaning station 15 is provided with an ultrasonic cleaning tank, and the medium sheet is thoroughly cleaned by ultrasonic waves.
In one embodiment of the present invention, as shown in fig. 2, the clamping mechanism 2 includes two flanges 23 that are in sealing engagement, the media sheet 12 is horizontally disposed between the two flanges 23, the lower flange 23 is fixed on the frame 3, and the upper flange 23 can move up and down along a slideway on the frame 3, so as to loosen and clamp the media sheet 12; the stand 3 on two sides of the microwave catheter 13 is respectively provided with a standby medium piece placing table 11 and a standby medium piece placing table 14, the standby medium piece placing table 11 is arranged between the micro waveguide 13 and the transposition mechanism, and the standby medium piece placing table 14 is arranged between the microwave catheter 13 and the cleaning station 15; the outside of the flange plates 23 is provided with a rubber sleeve, and a pressure sensor is arranged between the two flange plates 23 and used for displaying whether the flange plates are clamped or not, and the pressure value is used as feedback to keep the sealing in the microwave guide tube 13. Wherein the flange 23 is an electromagnetic flange connected with the controller, and the two electromagnetic flanges are electrified in the same direction or in opposite directions to loosen or clamp the dielectric sheet 12 in the microwave guide tube 13. According to the microwave receiver, the microwave receiver detects the microwave change on the upper and lower sides of the medium sheet in the microwave guide tube to judge whether the medium sheet in the microwave guide tube is clean or not, so that the electromagnetic flange plate is controlled to implement a clamping or loosening command, and whether the medium sheet is replaced or not is realized.
According to the invention, the original bolt flange is replaced by the electromagnetic flange to clamp the medium sheet, and the electrifying state of the electromagnetic flange is controlled by the display value of the pressure sensor at the joint of the electromagnetic flange. The clamping principle of the electromagnetic flange is illustrated below. Taking the original flange plate as an example through 18 bolt fixing, the total pretightening force of 18 bolts arranged on the original bolt flange plate is equivalent to the critical value of the clamping of the electromagnetic flange plate, and the calculation formula is as follows:
wherein:-single bolt pretension; />-yield limit of the bolt material; />-screw cross-sectional area;total pretension.
When the pressure sensor displays the valueWhen the value is reached, the electromagnetic flange plate can be adjusted to be electrified to keep clamping, so that the microwave catheter can keep a better sealing state.
Specifically, as shown in fig. 2, a spigot is machined at the lower end hole of the upper flange plate 23 for installing the dielectric sheet 12; the top of tang all is equipped with the seal groove that is used for placing the sealing washer on the bottom surface of top ring flange 23. The sealing groove at the top of the annular groove of the spigot is a small T-shaped groove 21, so that the sealing between the top edge of the medium piece and the matching surface of the spigot is ensured, and the sealing groove at the bottom surface of the flange plate is close to the edge and is a large T-shaped groove 24, so that the sealing between the two flange plates is ensured.
In one embodiment of the present invention, as shown in fig. 2, the microwave collecting ring a22 is disposed on the inner hole wall of the flange 23 above the dielectric sheet 12, and the microwave collecting ring B25 is disposed on the inner hole wall of the flange 23 below the dielectric sheet 12; the clamping and loosening of the dielectric sheets are realized by controlling the electrifying direction of the flange plate through the controller. The microwave signals on the upper and lower medium sheets are respectively collected through the microwave collecting ring A and the microwave collecting ring B, the signals are screened through the filter, the PC upper computer is used as a control end, and if the relative difference value of the microwave signal amplitude collected by the microwave collecting ring B compared with the microwave signal amplitude collected by the microwave collecting ring B exceeds the set value of the upper computer, the electromagnetic flange is electrified in the same direction to relax the electromagnetic flange, so that the medium sheets are convenient to replace.
For the set value of the upper computer, the medium sheet which has dirt and needs to be replaced can be measured in advance, the average value of the relative amplitude differences after three continuous measurement is recorded, and the relative amplitude differences are taken as the set value and calibrated in the analysis program of the upper computer.
Further optimizing the technical scheme, as shown in fig. 1, the top of the frame 3 is provided with an electric sucking disc 1 connected with a controller, and four vacuum sucking discs are distributed at four corners of the bottom of the electric sucking disc 1 and used for sucking medium sheets; the frame 3 is provided with a guide rail matched with the electric sucking disc 1, so that the electric sucking disc 1 moves among the drying station 16, the cleaning station 15, the standby washing medium piece placing table 14 and the standby medium piece placing table 11. The electric sucker reciprocates among the standby medium piece placing table 11, the standby washing medium piece placing table 14, the ultrasonic cleaning station 15 and the drying station 16 according to the instruction of the controller along the guide rail on the frame to complete the set action.
In one embodiment of the present invention, as shown in fig. 1 and 3, the transposition mechanism includes a rack push rod 9 and a rotating member, a gear 10 is disposed at the bottom of the rack push rod 9, a tooth form meshed with the gear 10 is disposed on the lower surface of the rack push rod 9, one end of the rack push rod 9 is connected to the rotating member, and the rotating member can drive the rack push rod 9 to push the spare medium sheet 4 on the spare medium sheet placing table 11 by the free end of the rotating member to replace the medium sheet 12 in the microwave guide tube 13. The rotary component comprises a driving motor 17, a turntable 6 and a vertical guide rod 27, wherein an output shaft of the driving motor 17 is coaxially fixed with the turntable 6, an eccentric shaft 28 is arranged on the outer side surface of the turntable 6, and the middle part of the vertical guide rod 27 is connected with a rack push rod 9; the vertical guide rod 27 is provided with a vertical guide groove 29, and the eccentric shaft 28 is arranged in the vertical guide groove 29. The driving motor drives the turntable to rotate, and the eccentric shaft on the turntable drives the rack push rod to do left-right reciprocating motion through the vertical guide rod, so that the standby medium sheet is pushed to the working position in the microwave guide tube, and meanwhile, the polluted medium sheet in the microwave guide tube is pushed out of the microwave guide tube.
In the specific manufacturing process, as shown in fig. 1, the gear 10 is arranged on a bracket 26, and the bracket 26 is also provided with a positioning ring 5 sleeved on a rack push rod 9; the support 26 and the driving motor 17 of the rotating member are both provided on the support table 8. Wherein, driving motor 17 sets up on supporting bench 8 through support frame 7. The structure ensures that the positions of the rack push rod and the standby medium sheet are equal in height, and the medium sheet is convenient to push and replace.
The invention has the following application processes: after a microwave signal source is started, a microwave receiving ring A and a microwave receiving ring B sequentially collect microwave signals on the upper part and the lower part of a medium sheet in a microwave guide pipe, the two groups of signals respectively show waveforms on an oscilloscope under the action of a filter, if the amplitude difference is small, reverse electricity is conducted on the upper electromagnetic flange plate and the lower electromagnetic flange plate, so that the two electromagnetic flange plates are clamped, and whether current needs to be enhanced is judged through the display numerical value of a set pressure sensor; if the amplitude difference is large, the medium sheet is polluted, if the medium sheet needs to be replaced, a microwave signal source is closed, the upper electromagnetic flange and the lower electromagnetic flange are electrified in the same direction, the lower electromagnetic flange is fixed on the frame, and the upper electromagnetic flange moves upwards by a certain unit length along an upper slideway of the frame; the right side transposition mechanism is started, the standby medium piece on the standby medium piece placing table is pushed to the working position of the medium piece through the rack push rod, and meanwhile, the medium piece to be cleaned is pushed to the standby medium piece placing table.
After the replacement is finished, the microwave signal is started, and after the microwave signal is identified by the microwave receiving ring A and the microwave receiving ring B, the two electromagnetic flanges are attracted and clamped to be airtight. And when the replacement is finished, the electric sucking disc sucks up the dried medium piece from the drying station, conveys the dried medium piece to the standby medium piece placing table along the guide rail above the frame, sucks up the medium piece on the standby medium piece placing table, conveys the medium piece to the ultrasonic cleaning station, conveys the medium piece to the drying station to remove water after cleaning, and waits for the next round of use. From this, the medium piece cleaning system of the rubber powder microwave desulfurization equipment finishes one complete cycle.
In summary, the invention has the advantages of compact structure and high degree of automation, and improves the cleaning effect and the cleaning efficiency of the medium sheet by orderly rotating the on-line cleaning and off-line cleaning modes, thereby reducing the influence on the production operation as much as possible. The automatic control device is convenient and quick to operate, improves the working efficiency, realizes the automatic management of the automatic medium sheet cleaning system in all working states, saves the working time and greatly improves the working efficiency of rubber powder desulfurization.
In the foregoing description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed above.
Claims (9)
1. A medium piece cleaning system of rubber powder microwave desulfurization equipment is characterized in that: the device comprises a microwave amplitude monitor, an online microwave plasma cleaning device and an automatic medium sheet replacement cleaning device, wherein the microwave amplitude monitor is respectively connected with the online microwave plasma cleaning device and the automatic medium sheet replacement cleaning device through a controller; the microwave amplitude monitor can detect the amplitude values of microwave amplitudes at the upper side and the lower side of the medium sheet in the microwave guide tube, when the difference value of the amplitude values is larger than a set value, the controller drives the online microwave plasma cleaning device to clean the medium sheet in the microwave guide tube in an online manner, and when the difference value of the microwave amplitudes at the two ends of the medium sheet is smaller than the set value, the online cleaning is finished; when the difference value of the microwave amplitudes at two ends of the medium sheet after on-line cleaning is still larger than a set value, the controller sends a shutdown signal to the rubber powder microwave desulfurization equipment and drives the medium sheet automatic replacement cleaning device to automatically replace the medium sheet, and clean the polluted medium sheet off-line; the on-line microwave plasma cleaning device comprises a discharging part and a telescopic mechanism, wherein the discharging part comprises a plurality of metal needles, one ends of the metal needles are fixed on an arc-shaped plate, and the other ends of the metal needles can enter the interior of a microwave catheter along pinholes on the side wall of the microwave catheter; the arc-shaped plate is connected with the telescopic mechanism, and the telescopic mechanism is connected with the controller; the metal needle can ionize air in the microwave catheter and introduced argon gas in the discharging process to generate oxygen plasma and argon plasma, and can remove pollutants on the surface of the dielectric sheet.
2. The media sheet cleaning system of a rubber powder microwave desulfurization apparatus of claim 1, wherein: the microwave amplitude monitor comprises a microwave receiver, an oscilloscope and a filter, wherein the microwave receiver comprises a microwave collecting ring A and a microwave collecting ring B which are arranged above and below a dielectric sheet, the microwave collecting ring A and the microwave collecting ring B are respectively connected with the oscilloscope through the filter, the oscilloscope is connected with an upper computer of a controller, and an online microwave plasma cleaning device and a dielectric sheet automatic replacement cleaning device are controlled by the controller.
3. The media sheet cleaning system of a rubber powder microwave desulfurization apparatus of claim 2, wherein: the automatic medium sheet replacing and cleaning device comprises a frame with a cleaning station and a drying station and a transposition mechanism for replacing the medium sheets, wherein a microwave guide pipe with the medium sheets arranged inside vertically penetrates through the frame, the transposition mechanism is arranged on one side of a micro waveguide tube, and the cleaning station and the drying station are arranged on the other side of the micro waveguide tube and used for cleaning and drying the medium sheets; the medium sheet is fixed in the micro waveguide tube through the clamping mechanism, and the transposition mechanism and the clamping mechanism are connected with the controller and used for enabling the clamping mechanism and the transposition mechanism to replace the medium sheet according to microwave signals detected by the microwave amplitude monitor.
4. A media sheet cleaning system for a rubber powder microwave desulfurization apparatus according to claim 3, characterized in that: the clamping mechanism comprises an upper flange and a lower flange which are in sealing fit, the medium sheet is horizontally arranged between the two flanges, the lower flange is fixed on the frame, and the upper flange can move up and down along a slideway on the frame and is used for loosening and clamping the medium sheet; the stand on two sides of the microwave catheter is respectively provided with a standby medium piece placing table and a standby washing medium piece placing table, the standby medium piece placing table is arranged between the micro waveguide tube and the transposition mechanism, and the standby washing medium piece placing table is arranged between the micro waveguide tube and the washing station; the outside of ring flange is equipped with the gum cover, is equipped with pressure sensor between two ring flanges for show whether the ring flange presss from both sides tightly.
5. The media sheet cleaning system of a rubber powder microwave desulfurization apparatus of claim 4, wherein: the lower end hole of the upper flange plate is provided with a spigot matched with the medium sheet, and the top of the spigot and the bottom surface of the upper flange plate are provided with sealing grooves for placing sealing rings; the flange plates are electromagnetic flange plates connected with the controller, and the two electromagnetic flange plates are electrified in the same direction or in opposite directions to relax or clamp the medium sheet in the microwave guide tube; the microwave collecting ring A is arranged on the inner hole wall of the flange plate above the medium plate, and the microwave collecting ring B is arranged on the inner hole wall of the flange plate below the medium plate.
6. A media sheet cleaning system for a rubber powder microwave desulfurization apparatus according to claim 3, characterized in that: the top of the frame is provided with an electric sucking disc connected with the controller, and four vacuum sucking discs are distributed at four corners of the bottom of the electric sucking disc and are used for sucking the medium sheets; the machine frame is provided with a guide rail matched with the electric sucking disc, so that the electric sucking disc moves among the drying station, the cleaning station, the standby washing medium piece placing table and the standby medium piece placing table.
7. A media sheet cleaning system for a rubber powder microwave desulfurization apparatus according to claim 3, characterized in that: the transposition mechanism comprises a rack push rod and a rotating part, a gear is arranged at the bottom of the rack push rod, a tooth shape meshed with the gear is arranged on the lower surface of the rack push rod, one end of the rack push rod is connected with the rotating part, and the rotating part can drive the rack push rod to enable the free end of the rack push rod to push the spare medium piece on the spare medium piece placing table to replace the medium piece in the micro waveguide tube.
8. The media sheet cleaning system of a rubber powder microwave desulfurization apparatus of claim 7, wherein: the gear is arranged on the bracket, and a positioning ring sleeved on the rack push rod is also arranged on the bracket; the driving motors of the support and the rotating part are arranged on the supporting table.
9. The media sheet cleaning system of a rubber powder microwave desulfurization apparatus of claim 8, wherein: the rotary part comprises a driving motor, a turntable and a vertical guide rod, wherein an output shaft of the driving motor is coaxially fixed with the turntable, an eccentric shaft is arranged on the outer side surface of the turntable, and the middle part of the vertical guide rod is connected with a rack push rod; the vertical guide rod is provided with a vertical guide groove, and the eccentric shaft is arranged in the vertical guide groove.
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