CN105478216A - Electromagnetic type swelling detecting device for compound tube mill and pre-swelling control method - Google Patents
Electromagnetic type swelling detecting device for compound tube mill and pre-swelling control method Download PDFInfo
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- CN105478216A CN105478216A CN201510983788.7A CN201510983788A CN105478216A CN 105478216 A CN105478216 A CN 105478216A CN 201510983788 A CN201510983788 A CN 201510983788A CN 105478216 A CN105478216 A CN 105478216A
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- swollen tripe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
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Abstract
The invention discloses an electromagnetic type swelling detecting device for a compound tube mill and a pre-swelling control method, and relates to the technical field of tube mill detecting devices. The detecting device comprises a U-shaped magnet (6), a concentrating flux plate (12) and a detecting head (14), wherein the opening end of the U-shaped magnet (6) faces towards the inner part of a tube mill machine enclosure (1); the concentrating flux plate (12) is arranged at the lower side of the opening of the U-shaped magnet (6); the lower end of the concentrating flux plate (12) is fixedly connected to the detecting head (14); the lower end of the detecting head (14) extends out of a detecting hole (4); a group of magnetic coils (10) connected to a power supply (70 is wound on one vertical part of the U-shaped magnet (6); an induction coil (11) connected to a detecting circuit (9) is wound on another vertical part of the U-shaped magnet (6); the detecting circuit (9) is connected to an outer signal processing module; and the signal processing module is connected to a control system. The detecting head (14) pushes the concentrating flux plate (12) to extend into the opening of the U-shaped magnet (6) and changes a magnetic group, so that the swelling state of the tube mill is detected, and the work of the tube mill can be regulated in real time, and therefore, the tube mill works in the pre-swelling state at the swelling early stage.
Description
Technical field
A kind of electromagnetic type multi-compartment tube grinding machine swollen tripe checkout gear and pre-swollen tripe regulate and control method, relate to tube mill checkout gear and technical field.
Background technology
Tube mill is fine grinding equipment very important in the modern industry, is widely used in building materials, metallurgy, ore dressing, electric power and chemical industry grinding production field.Large Tube grinding machine generally has multiple bin, and its production capacity is very high, when with partition panel grinding mill barrel being divided into the bin of two, three or four different lengths, is called multi-compartment tube grinding machine.Doubly, the time that material experiences in tube mill is longer, and product fineness is even, and comminution ratio is larger for the large 2-7 of length diameter group that the multi-compartment tube grinding machine place different with short bobbin grinding machine is only it.In multi-compartment tube grinding machine, grinding mill barrel is separated into some bins by partition panel, in each storehouse, coordinates abrasive body, so just make the fine grinding of material carry out stage by stage by storehouse, thus obtain higher grinding efficiency according to material fine grinding situation.
In tube mill production process, most important fault is exactly swollen tripe phenomenon, tube mill is swollen tripe, referring to (as large in sand return amount, raw ore quantitative change is large) for a certain reason makes the material quantitative change feeding tube mill large, exceeded the maximum tonnage capacity of tube mill permission itself and can not arrange out, the amount that tube mill is discharged is less than the inventory entering tube mill, and mineral aggregate accumulates gradually in tube mill, make tube mill lose ore grinding effect, this phenomenon is called the swollen tripe of tube mill.The harm of tube mill is swollen tripe is very large, swollen tripe not only makes tube mill lose (or reduction) milling action to ore, destroy the steady operation of ore grinding, and process swollen tripe and also will cause the fluctuation of feed ore concentration and fineness to subsequent job, have impact on normally carrying out of subsequent job; In addition, serious swollen tripe can cause tube mill, ore feeder, sand return case, bearing, gear etc. to be hit load and damaging.After tube mill is swollen tripe, generally take to stop mineral aggregate supply, increase and process to the mode of mineral water, when swollen tripe phenomenon is more serious, also will adopts water under high pressure, manually unload the more complicated mode such as mill.Swollen tripe phenomenon has had a strong impact on the production efficiency of tube mill.And if design a kind of swollen tripe checkout gear, realize the detection of tube mill before swollen tripe, and the real-time adjustment of tube mill work is realized according to detection data, make tube mill real-time working in swollen tripe pre-swollen tripe state in earlier stage, then effectively can avoid the generation of the swollen tripe fault of tube mill, ensure that tube mill normally runs, realize the maximization of tube mill operating efficiency, realize industry energy conservation consumption reduction object.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, there is provided a kind of energy detector tube grinding machine swollen tripe state, and can adjust in real time tube mill work, make tube mill be operated in the multi-compartment tube grinding machine swollen tripe checkout gear of swollen tripe pre-swollen tripe state in earlier stage and pre-swollen tripe regulate and control method.
The technical solution adopted for the present invention to solve the technical problems is: the swollen tripe checkout gear of this electromagnetic type multi-compartment tube grinding machine, comprise the detection mouth be opened on tube mill casing, detection mouth is cylindrical hole outwardly, the equal correspondence of each bin of tube mill is provided with one and detects mouth, tube mill is supported to install and driven by variable-frequency motor by support and rotates, tube mill is equipped with blower fan and mineral aggregate belt conveyor simultaneously, blower fan and mineral aggregate belt conveyor are all controlled by control system, it is characterized in that: described detection mouth top is by tube mill top seal, detect installation detecting device in mouth, described checkout gear comprises a U magnet, magnetic conductive board and detection head, the openend of U magnet is towards tube mill casing internal, magnetic conductive board is arranged on the downside of the opening of U magnet, magnetic conductive board lower end is fixedly connected with detection head, detection mouth is stretched out in detection head lower end, a vertical portion of U magnet is wound with the magnetic coil that a group connects power supply, another vertical portion is wound with the induction coil of connection detection circuit, testing circuit connects outside signal processing module, signal processing module connection control system.Because the openend magnetic resistance of U magnet is very large, the magnetic line of force that magnetic coil can be caused to produce cannot arrive induction coil, so when there is no material and steel ball group, testing circuit can't detect the electric current of induction coil, also just signal is not produced, when having material and steel ball group, detection head can promote the openend that magnetic conductive board inserts U magnet, the magnetic resistance relative atmospheric of magnetic conductive board is much smaller, the magnetic line of force now causing magnetic coil generation just can arrive induction coil, induction coil also just can generation current, testing circuit detects electric current in induction coil thus produces signal, the signal of telecommunication is sent to signal processing module by testing circuit and is converted into data signal, data signal is delivered to control system, control system sends different instructions according to the difference of data signal to variable-frequency motor and blower fan.
Preferably, described detection head bottom is cylinder, detection head top is cone, cone top is connected with sheet metal, the circumference of sheet metal is fixedly connected with detection mouth inwall, and the middle part of a circular joint pin connection metal thin slice is passed through in magnetic conductive board lower end, the express material detection head in described bin, detection head promotes magnetic conductive board and stretches in the opening of U magnet, changes the magnetic resistance of U magnet openend.Detection head can be subjected to displacement when receiving the pressure of material and steel ball group, and displacement can either be passed to magnetic conductive board by sheet metal, and detection head can be made again to reset when not having material and steel ball group.
Preferably, described detection mouth is provided with the sealing protective of non-metallic material, the openend hermetically passing sealing protective of U magnet.Sealing protective can prevent material from entering in detection mouth, and has characteristic that is wear-resisting, protecting against shock, and protection detects mouth internal structure and is not hit, and adopts non-metallic material can ensure that the openend of U magnet accurately can sense steel ball.
Described U magnet is superposed by multi-disc silicon steel sheet and combines.Silicon steel sheet has good magnetic property, and it can improve the electrodynamic capacity of U magnet greatly.
Preferably, described U magnet upper end is fixed on the positioning by top board, and two ends of U magnet openend are to bent intermediate, and two ends are sharp acute angles shape hermetically passing sealing protective.This design both can ensure that U magnet accurately sensed magnetic conductive board, thus changed its magnetic field, also can protect U magnet, prevented from being worn and torn by excess impact, prevented material from entering simultaneously and detected in mouth.
Described sealing protective adopts polyurethane resin to be made.Polyurethane resin is a kind of macromolecular material with high strength, tear-proof, the characteristic such as wear-resisting, and nonmagnetic, can better play the effect of protection and sealing.
Described testing circuit is connection signal processing module wirelessly, and signal processing module connects a wireless launcher, and the signal that testing circuit detects wirelessly is transmitted to control system by wireless launcher.Wireless mode is easy for installation, without the need to the connection of complexity, simplifies package unit installation procedure, and does not hinder tube mill to rotate, and is to ensure that tube mill operates and the key device of signal transmission smoothly.
One utilizes electromagnetic type multi-compartment tube grinding machine swollen tripe checkout gear to carry out pre-swollen tripe regulate and control method, comprises the steps:
The first step, equipment are installed: mounting pipe grinding machine also fixes commissioning device to operating position, installation detecting device in the detection mouth of tube mill;
Second step, the work of simulative tube grinding machine the swollen tripe state of calibrating tube grinding machine, show that detection head is in the time T0 in material and steel ball group under tube mill swollen tripe state: detect mouth by tube mill and add a small amount of ballstone to tube mill inside, starting variable-frequency motor drives tube mill to rotate with normal operating rate, start mineral aggregate belt conveyor with normal operating rate to tube mill delivered inside material and steel ball group, tube mill is normally worked, simultaneously, operator personal monitoring tube mill internal state, if normal operation, improve mineral aggregate belt conveyor speed, improve mineral aggregate and add speed, continue monitoring, until tube mill wherein arbitrary bin enter swollen tripe state, the detection head recorded in each bin is in the time T0 in material and steel ball group, then T0 be this model tube mill grind this material and steel ball group time, when there is swollen tripe state, detection head is in the time in material and steel ball group,
3rd step, normally to work, and carry out Real-time Collection to the rotate a circle signal that exports and time of tube mill, the detection head recorded in each bin is in the time T in material and steel ball group respectively;
4th step, according to time T data regulating tube grinding machine in pre-swollen tripe state running: the data signal of control system acknowledge(ment) signal processing module feedback, and judge digital time T, according to the numerical values recited of time T, send command adapted thereto and control mineral aggregate belt conveyor and blower fan work, make tube mill keep pre-swollen tripe state running.
The method that the inner arbitrary bin of operator personal monitoring tube mill enters swollen tripe state comprises and mainly comprises the following aspects:
1), tube mill Main motor current table indicator current is in continuous decline;
2), tube mill operating sound is dull, and noise diminishes, and does not almost hear the impact of steel ball and rushes down the sound fallen;
3), tube mill has ore pulp outwards to overflow to ore deposit end;
4), outlet mineral aggregate starts thicker, and sand return amount is strengthening gradually, and effluent concentration increases, granularity is thicker;
5), flotation froth has significant change, and floating agent effect is lacked of proper care, and mineralising phenomenon weakens.
Described according to time T data regulating tube grinding machine in the method for pre-swollen tripe state running is:
1), when the time T numerical value of bins all in tube mill is less than the T0*80% of this bin, tube mill runs lower than pre-swollen tripe state, control system sends instruction, progressively strengthens the speed of service of blower fan and mineral aggregate belt conveyor, progressively strengthens the mineral aggregate input of the first bin;
2), when the time T numerical value of bin arbitrary in tube mill equals the T0*80% of this bin, tube mill keeps pre-swollen tripe state to run, and control system sends instruction, makes rotation speed of fan keep stable, and the speed of mineral aggregate travelling belt keeps stable;
3), when the time T numerical value of bin arbitrary in tube mill is greater than the T0*80% of this bin, tube mill is broken through pre-swollen tripe state control system and is sent instruction, reduce the speed of mineral aggregate travelling belt, gradually reduce the mineral aggregate input quantity of bin, and keep rotation speed of fan constant;
4), when the time T numerical value of bin arbitrary in tube mill is greater than the T0*90% of this bin, tube mill is about to enter swollen tripe state, control system controls blower fan and rotates with maximal rate, stop the operation of mineral aggregate travelling belt simultaneously, the mineral aggregate of the first bin is stopped to input, until time T numerical value equals T0*80%, tube mill is run in pre-swollen tripe state.
The concrete grammar of the time T that described record detection head is in material and steel ball group is: when not having material and steel ball group applies pressure to detection head lower end, detection head does not produce displacement, magnetic conductive board is positioned at below the openend of U magnet, the magnetic resistance of U magnet opening part causes greatly not having electric current to produce in induction coil, and testing circuit no signal produces; When having material and steel ball group applies pressure to detection head lower end, detection head promotes magnetic conductive board and produces displacement, magnetic conductive board inserts in the openend of U magnet, the magnetic resistance of U magnet opening part reduces makes generation current in induction coil, testing circuit detects electric current and produces signal, testing circuit by electrical signal transfer to signal processing module and change into data signal export, record simultaneously data signal produce time be T, then T is the time that detection head is in material.
Compared with prior art, the beneficial effect that the technique scheme of this electromagnetic type multi-compartment tube grinding machine swollen tripe checkout gear and pre-swollen tripe regulate and control method has is:
1, the swollen tripe state of this invention energy detector tube grinding machine, and can adjust in real time tube mill work, tube mill is made to be operated in the pre-swollen tripe state in swollen tripe early stage: installation detecting device in the detection mouth of tube mill, checkout gear can realize the detection to tube mill materials inside and steel ball group, the signal detected transfers to signal processing module by testing circuit, signal is changed and is transferred to control system by signal processing module, control system sends different instructions according to the difference of signal to variable-frequency motor or blower fan, thus make tube mill continue to remain on pre-swollen tripe state operation, prevent tube mill from occurring swollen tripe phenomenon.
2, checkout gear comprises a U magnet, and U magnet outer ring is wound with two groups of coils, during tube mill work, utilizes magnetic conductive board to change the magnetic resistance of U magnet openend, thus produces the signal of telecommunication and be passed to signal processing module and export.Find through inventor's repeated tests, such design can accurately induce material and whether steel ball group exists detection head place, and sends corresponding signal, and the tube mill work for next step adjusts in real time provides basis.This electromagnetic type multi-compartment tube grinding machine swollen tripe checkout gear and pre-swollen tripe regulate and control method first electromagnetic sensing technology are applied to tube mill inside to detect, and filled up the technological gap in this field, be of great significance for tube mill on-line checkingi field tool.
3, ball mill can be made to continue to run in pre-swollen tripe state, effectively can avoid the generation of the swollen tripe fault of tube mill, ensure that tube mill normally runs, ensure that normally carrying out of subsequent job; The equipment such as tube mill, ore feeder, sand return case, bearing, gear is prevented to be hit load and damaging, available protecting device security; And the maximization of tube mill operating efficiency can be made, realize industry energy conservation consumption reduction object.
4, rational in infrastructure; improve service life and accuracy of detection: the sealing protective of non-metallic material is installed in one end that hole is communicated with tube mill casing internal; sealing protective adopts polyurethane resin to be made; can ensure that the openend of U magnet accurately can sense magnetic conductive board; and sealing protective has characteristic that is wear-resisting, protecting against shock; can prevent material from entering and detect in mouth, protection detects mouth internal structure and is not hit.
Accompanying drawing explanation
Fig. 1 is the main sectional view of this electromagnetic type multi-compartment tube grinding machine swollen tripe checkout gear.
Fig. 2 is the side view of the swollen tripe checkout gear of this electromagnetic type multi-compartment tube grinding machine.
Fig. 3 is the A place close-up schematic view of Fig. 1.
Wherein: 1, tube mill casing 2, tube mill top cover 3, support 4, detect mouth 5, material and steel ball group 6, U magnet 7, power supply 8, top board 9, testing circuit 10, magnetic coil 11, induction coil 12, magnetic conductive board 13, sheet metal 14, detection head 15, sealing protective.
Detailed description of the invention
Fig. 1 ~ 3 are most preferred embodiments of the present invention, and below in conjunction with accompanying drawing 1 ~ 3, the present invention will be further described.
With reference to accompanying drawing 1-2: the swollen tripe checkout gear of a kind of electromagnetic type multi-compartment tube grinding machine, comprise the detection mouth 4 be opened on tube mill casing 1, detection mouth 4 is cylindrical hole outwardly, the equal correspondence of each bin of tube mill is provided with one and detects mouth 4, tube mill is supported to install and driven by variable-frequency motor by support 3 and rotates, tube mill is equipped with blower fan and mineral aggregate belt conveyor simultaneously, and blower fan and mineral aggregate belt conveyor are all controlled by control system.
With reference to Fig. 3, detect mouth 4 top and sealed by tube mill top cover 2, the shell wall of tube mill casing 1 has and the hole detected mouth 4 and communicate.Detect installation detecting device in mouth 4, checkout gear comprises a U magnet 6, magnetic conductive board 12 and detection head 14, the openend of U magnet 6 is inner towards tube mill casing 1, magnetic conductive board 12 is arranged on the downside of the opening of U magnet 6, magnetic conductive board 12 lower end is fixedly connected with detection head 14, detection head 14 lower end is stretched out and is detected mouth 4, a vertical portion of U magnet 6 is wound with the magnetic coil 10 that a group connects power supply 7, another vertical portion is wound with the induction coil 11 of connection detection circuit 9, testing circuit 9 connects outside signal processing module, signal processing module connection control system.Because the openend magnetic resistance of U magnet 6 is very large, the magnetic line of force that magnetic coil 10 can be caused to produce cannot arrive induction coil 11, so when there is no material and steel ball group 5, testing circuit 9 can't detect the electric current of induction coil 11, also just signal is not produced, when having material and steel ball group 5, detection head 14 can promote the openend that magnetic conductive board 12 inserts U magnet 6, the magnetic resistance relative atmospheric of magnetic conductive board 12 is much smaller, the magnetic line of force that now magnetic coil 10 produces just can arrive induction coil 11, induction coil 11 also just can generation current, testing circuit detects electric current in induction coil 11 thus produces signal, the signal of telecommunication is sent to signal processing module by testing circuit and is converted into data signal, data signal is delivered to control system, control system sends different instructions according to the difference of data signal to variable-frequency motor and blower fan.
Detection head 14 bottom is cylinder, detection head 14 top is cone, cone top is connected with sheet metal 13, the circumference of sheet metal 13 is fixedly connected with detection mouth inwall, magnetic conductive board 12 lower end is by the middle part of a circular joint pin connection metal thin slice 13, express material detection head 14 in described bin, detection head 14 promotes magnetic conductive board 12 and stretches in the opening of U magnet 6, changes the magnetic resistance of U magnet 6 openend.
The openend of U magnet 6 embeds in the hole on shell wall, and the sealing protective 15 of non-metallic material is installed in one end that hole is communicated with tube mill casing 1 inside.Sealing protective 15 adopts polyurethane resin to be made.The upper end of U magnet 6 is blind end, and in blind end perforate, power supply 7 is fixed in this hole.
U magnet 6 is superposed by multi-disc silicon steel sheet and combines.U magnet 6 upper end is fixed on the positioning by top board 8, and the openend of U magnet 6 lower end is that sharp acute angles shape stretches out sealing protective 15, and fits tightly sealing with sealing protective 15, and the material of tube mill casing 1 inside cannot enter and detect in mouth 4.Testing circuit 9 is connection signal processing module wirelessly, connects a wireless launcher, and the signal that testing circuit 9 detects wirelessly is transmitted to control system by wireless launcher.Concrete, signal processing module adopts wireless transmission current transformer, and wireless transmission current transformer can the signal of telecommunication that sends of wireless receiving testing circuit 9 be converted into data signal.Wireless transmission current transformer connection control system, control system can control the blower fan of frequency converter in variable-frequency motor and outside.
Wireless transmission current transformer in above-described embodiment also can be used instead without data collecting card.Its effect is all be data signal by transform electrical signals, and sends to control system.
One utilizes electromagnetic type multi-compartment tube grinding machine swollen tripe checkout gear to carry out pre-swollen tripe regulate and control method, comprises the steps:
The first step, equipment are installed: mounting pipe grinding machine also fixes commissioning device to operating position, installation detecting device in the detection mouth 4 of tube mill;
Second step, the work of simulative tube grinding machine the swollen tripe state of calibrating tube grinding machine, show that detection head 14 is in the time T0 in material and steel ball group 5 under tube mill swollen tripe state: detect mouth 4 by tube mill and add a small amount of ballstone to tube mill inside, starting variable-frequency motor drives tube mill to rotate with normal operating rate, start mineral aggregate belt conveyor with normal operating rate to tube mill delivered inside material and steel ball group, tube mill is normally worked, simultaneously, operator personal monitoring tube mill internal state, if normal operation, improve mineral aggregate belt conveyor speed, improve mineral aggregate and add speed, continue monitoring, until tube mill wherein arbitrary bin enter swollen tripe state, the detection head 14 recorded in each bin is in the time T0 in material and steel ball group 5, then T0 be this model tube mill grind this material and steel ball group time, when there is swollen tripe state, detection head 14 is in the time in material and steel ball group 5,
3rd step, normally to work, and carry out Real-time Collection to the rotate a circle signal that exports and time of tube mill, the detection head 14 recorded in each bin is in the time T in material and steel ball group 5 respectively;
4th step, according to time T data regulating tube grinding machine in pre-swollen tripe state running: the data signal of control system acknowledge(ment) signal processing module feedback, and judge the time T of data signal, according to the numerical values recited of time T, send command adapted thereto and control mineral aggregate belt conveyor and blower fan work, make tube mill keep pre-swollen tripe state running.
The method that the inner arbitrary bin of operator personal monitoring tube mill enters swollen tripe state comprises and mainly comprises the following aspects:
1, tube mill Main motor current table indicator current is in continuous decline;
2, tube mill operating sound is dull, and noise diminishes, and does not almost hear the impact of steel ball and rushes down the sound fallen;
3, tube mill has ore pulp outwards to overflow to ore deposit end;
4, exporting mineral aggregate starts thicker, and sand return amount is strengthening gradually, and effluent concentration increases, granularity is thicker;
5, flotation froth has significant change, and floating agent effect is lacked of proper care, and mineralising phenomenon weakens.
According to time T data regulating tube grinding machine in the method for pre-swollen tripe state running be:
1, when the time T numerical value of bins all in tube mill is less than the T0*80% of this bin, tube mill runs lower than pre-swollen tripe state, and control system sends instruction, strengthens the speed of service of blower fan and mineral aggregate belt conveyor, progressively strengthens the mineral aggregate input of the first bin;
2, when the time T numerical value of bin arbitrary in tube mill equals the T0*80% of this bin, tube mill keeps pre-swollen tripe state to run, and control system sends instruction, makes rotation speed of fan keep stable, and the speed of mineral aggregate travelling belt keeps stable;
3, when the time T numerical value of bin arbitrary in tube mill is greater than the T0*80% of this bin, tube mill is broken through pre-swollen tripe state control system and is sent instruction, reduces the speed of mineral aggregate travelling belt, gradually reduces the mineral aggregate input quantity of bin, and keep rotation speed of fan constant;
4, when the time T numerical value of bin arbitrary in tube mill is greater than the T0*90% of this bin, tube mill is about to enter swollen tripe state, control system controls blower fan and rotates with maximal rate, stop the operation of mineral aggregate travelling belt simultaneously, the mineral aggregate of the first bin is stopped to input, until time T numerical value equals T0*80%, tube mill is run in pre-swollen tripe state.
The concrete grammar of the time T that record detection head 14 is in material and steel ball group 5 is: when not having material and steel ball group 5 applies pressure to detection head 14 lower end, the sheet metal 13 of detection head 14 upper end does not produce displacement, magnetic conductive board 12 is positioned at below the openend of U magnet 6, the magnetic resistance of U magnet 6 causes greatly not having electric current to produce in induction coil 11, and testing circuit 9 no signal produces, when having material and steel ball group 5 applies pressure to detection head 14 lower end, detection head 14 lower end cylinder is delivered to pressure the center of sheet metal 13 by top conical body, pressure is born and bulging deformation in center, deflection makes magnetic conductive board 12 produce displacement by circular joint pin, magnetic conductive board 12 inserts in the openend of U magnet 6, the magnetic resistance reduction of U magnet 6 causes generation current in induction coil 11, testing circuit 9 detects electric current and produces signal, testing circuit 9 by electrical signal transfer to signal processing module and change into data signal export, the time simultaneously recording data signal generation is T, then T is the time that detection head 14 is in material.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (10)
1. the swollen tripe checkout gear of electromagnetic type multi-compartment tube grinding machine, comprise the detection mouth (4) be opened on tube mill casing (1), detection mouth (4) is cylindrical hole outwardly, the equal correspondence of each bin of tube mill is provided with one and detects mouth (4), tube mill is supported to install and driven by variable-frequency motor by support (3) and rotates, tube mill is equipped with blower fan and mineral aggregate belt conveyor simultaneously, blower fan and mineral aggregate belt conveyor are all controlled by control system, it is characterized in that: described detection mouth (4) top is by tube mill top cover (2) sealing, detect mouth (4) interior installation detecting device, described checkout gear comprises a U magnet (6), magnetic conductive board (12) and detection head (14), the openend of U magnet (6) is inner towards tube mill casing (1), magnetic conductive board (12) is arranged on the downside of the opening of U magnet (6), magnetic conductive board (12) lower end is fixedly connected with detection head (14), detection head (14) lower end is stretched out and is detected mouth (4), a vertical portion of U magnet (6) is wound with the magnetic coil (10) that a group connects power supply (7), another vertical portion is wound with the induction coil (11) of connection detection circuit (9), testing circuit (9) connects outside signal processing module, signal processing module connection control system.
2. the swollen tripe checkout gear of a kind of electromagnetic type multi-compartment tube grinding machine according to claim 1, it is characterized in that: described detection head (14) bottom is cylinder, detection head (14) top is cone, cone top is connected with sheet metal (13), the circumference of sheet metal (13) is fixedly connected with detection mouth inwall, magnetic conductive board (12) lower end is by the middle part of a circular joint pin connection metal thin slice (13), express material detection head (14) in described bin, detection head (14) promotes magnetic conductive board (12) and stretches in the opening of U magnet (6), change the magnetic group of U magnet (6) openend.
3. the swollen tripe checkout gear of a kind of electromagnetic type multi-compartment tube grinding machine according to claim 1; it is characterized in that: described detection mouth (4) is provided with the sealing protective (15) of non-metallic material, openend hermetically passing sealing protective (15) of U magnet (6).
4. the swollen tripe checkout gear of a kind of electromagnetic type multi-compartment tube grinding machine according to claim 1 and 2, is characterized in that: described U magnet (6) is superposed by multi-disc silicon steel sheet and combines.
5. the swollen tripe checkout gear of a kind of electromagnetic type multi-compartment tube grinding machine according to claim 3; it is characterized in that: described U magnet (6) upper end is fixed on the positioning by top board (8); two ends of U magnet (6) openend are to bent intermediate, and two ends are sharp acute angles shape hermetically passing sealing protective (15).
6. the swollen tripe checkout gear of a kind of electromagnetic type multi-compartment tube grinding machine according to claim 3 or 5, is characterized in that: described sealing protective (15) adopts polyurethane resin to be made.
7. the swollen tripe checkout gear of a kind of electromagnetic type multi-compartment tube grinding machine according to claim 1, it is characterized in that: described testing circuit (9) wirelessly connection signal processing module, signal processing module connects a wireless launcher, and the signal that testing circuit (9) detects wirelessly is transmitted to control system by wireless launcher.
8. utilize the one described in any one of claim 1-7 to utilize electromagnetic type multi-compartment tube grinding machine swollen tripe checkout gear to carry out pre-swollen tripe regulate and control method, it is characterized in that, comprise the steps:
The first step, equipment install: mounting pipe grinding machine to operating position, installation detecting device in the detection mouth (4) of tube mill;
Second step, the work of simulative tube grinding machine the swollen tripe state of calibrating tube grinding machine, show that detection head (14) is in the time T0 in material and steel ball group (5) under tube mill swollen tripe state: add a small amount of ballstone to tube mill inside, starting variable-frequency motor drives tube mill to rotate with normal operating rate, start mineral aggregate belt conveyor with normal operating rate to tube mill delivered inside material and steel ball group, tube mill is normally worked, simultaneously, operator personal monitoring tube mill internal state, if normal operation, improve mineral aggregate belt conveyor speed, improve mineral aggregate and add speed, continue monitoring, until tube mill wherein arbitrary bin enter swollen tripe state, the detection head (14) recorded in each bin is in the time T0 in material and steel ball group (5), then T0 be this model tube mill grind this material and steel ball group time, when there is swollen tripe state, detection head (14) is in the time in material and steel ball group (5),
3rd step, normally to work, and carry out Real-time Collection to the rotate a circle signal that exports and time of tube mill, the detection head (14) recorded in each bin is in the time T in material and steel ball group (5) respectively;
4th step, according to time T data regulating tube grinding machine in pre-swollen tripe state running: the data signal of control system acknowledge(ment) signal processing module feedback, and judge the time T of data signal, according to the numerical values recited of time T, send command adapted thereto and control mineral aggregate belt conveyor and blower fan work, make tube mill keep pre-swollen tripe state running.
9. one according to claim 8 utilizes electromagnetic type multi-compartment tube grinding machine swollen tripe checkout gear to carry out pre-swollen tripe regulate and control method, it is characterized in that: described according to time T regulating tube grinding machine in the method for pre-swollen tripe state running is:
1), when the time T numerical value of bins all in tube mill is less than the T0*80% of this bin, tube mill runs lower than pre-swollen tripe state, control system sends instruction, progressively strengthens the speed of service of blower fan and mineral aggregate belt conveyor, progressively strengthens the mineral aggregate input of the first bin;
2), when the time T numerical value of bin arbitrary in tube mill equals the T0*80% of this bin, tube mill keeps pre-swollen tripe state to run, and control system sends instruction, makes rotation speed of fan keep stable, and the speed of mineral aggregate travelling belt keeps stable;
3), when the time T numerical value of bin arbitrary in tube mill is greater than the T0*80% of this bin, tube mill is broken through pre-swollen tripe state control system and is sent instruction, reduce the speed of mineral aggregate travelling belt, gradually reduce the mineral aggregate input quantity of bin, and keep rotation speed of fan constant;
4), when the time T numerical value of bin arbitrary in tube mill is greater than the T0*90% of this bin, tube mill is about to enter swollen tripe state, control system controls blower fan and rotates with maximal rate, stop the operation of mineral aggregate travelling belt simultaneously, the mineral aggregate of the first bin is stopped to input, until time T numerical value equals T0*80%, tube mill is run in pre-swollen tripe state.
10. one according to claim 8 utilizes electromagnetic type multi-compartment tube grinding machine swollen tripe checkout gear to carry out pre-swollen tripe regulate and control method, it is characterized in that: the concrete grammar of the time T that record detection head (14) is in material and steel ball group (5) is: when not having material and steel ball group (5) applies pressure to detection head (14) lower end, detection head (14) does not produce displacement, magnetic conductive board (12) is positioned at below the openend of U magnet (6), the magnetic group of U magnet (6) opening part causes greatly not having electric current to produce in induction coil (11), testing circuit (9) no signal produces, when having material and steel ball group (5) applies pressure to detection head (14) lower end, detection head (14) promotes magnetic conductive board (12) and produces displacement, magnetic conductive board (12) inserts in the openend of U magnet (6), the magnetic group of U magnet (6) opening part reduces makes induction coil (11) interior generation current, testing circuit (9) detects electric current and produces signal, testing circuit (9) by electrical signal transfer to signal processing module and change into data signal export, the time simultaneously recording data signal generation is T, then T is the time that detection head (14) is in material.
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| CN201510983788.7A CN105478216B (en) | 2015-12-24 | 2015-12-24 | Tripe detection means that a kind of electromagnetic type multi-compartment tube grinding machine is swollen and pre-swollen tripe regulation and control method |
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| CN201510983788.7A CN105478216B (en) | 2015-12-24 | 2015-12-24 | Tripe detection means that a kind of electromagnetic type multi-compartment tube grinding machine is swollen and pre-swollen tripe regulation and control method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4635858A (en) * | 1981-01-09 | 1987-01-13 | W. R. Grace & Co. | Methods of operating ball grinding mills |
| CN101733188A (en) * | 2010-01-13 | 2010-06-16 | 济南大学 | Ball mill positioning shutdown control system and control method thereof |
| CN102179278A (en) * | 2011-03-28 | 2011-09-14 | 山东理工大学 | Automatic speed regulation system and method for ball milling machine |
| CN104069917A (en) * | 2014-07-01 | 2014-10-01 | 山东理工大学 | Ball mill impact force detection device and impact force detection and ball mill speed regulation method |
-
2015
- 2015-12-24 CN CN201510983788.7A patent/CN105478216B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4635858A (en) * | 1981-01-09 | 1987-01-13 | W. R. Grace & Co. | Methods of operating ball grinding mills |
| CN101733188A (en) * | 2010-01-13 | 2010-06-16 | 济南大学 | Ball mill positioning shutdown control system and control method thereof |
| CN102179278A (en) * | 2011-03-28 | 2011-09-14 | 山东理工大学 | Automatic speed regulation system and method for ball milling machine |
| CN104069917A (en) * | 2014-07-01 | 2014-10-01 | 山东理工大学 | Ball mill impact force detection device and impact force detection and ball mill speed regulation method |
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