CN204066934U - A kind of pulse demagnetizer for taking off magnetic treatment to pit wood - Google Patents
A kind of pulse demagnetizer for taking off magnetic treatment to pit wood Download PDFInfo
- Publication number
- CN204066934U CN204066934U CN201420540726.XU CN201420540726U CN204066934U CN 204066934 U CN204066934 U CN 204066934U CN 201420540726 U CN201420540726 U CN 201420540726U CN 204066934 U CN204066934 U CN 204066934U
- Authority
- CN
- China
- Prior art keywords
- demagnetizer
- magnetic
- energy storage
- controllable silicon
- plc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Magnetic Treatment Devices (AREA)
Abstract
The utility model relates to pit wood ore dressing and takes off magnetic technology field, a kind of pulse demagnetizer for taking off magnetic treatment to pit wood that the utility model provides, mainly comprises solid AC relay, bridge rectifier, energy storage capacitor, switch controllable silicon, de-magnetic coil, PLC, voltage sampler, silicon controlled toggle; Described energy storage capacitor is by voltage sampler connecting valve controllable silicon; Described silicon controlled toggle one end connecting valve controllable silicon, the other end connects solenoid-operated switch and voltage sampler by PLC.The preferred solid-state AC relay of the utility model and bridge rectifier structure, achieve effective isolation of electrical network before electrical network and rectification after rectification, the PLC of further employing technical grade and voltage sampler can accurately judge and the control charging process of demagnetizer and the operation of de-magnetic process, when reaching demagnetizer work and the electromagnetic field of electrical network do not disturb mutually, improve the functional reliability of demagnetizer.
Description
Technical field
The present invention relates to pit wood ore dressing and take off magnetic technology field, particularly relate to a kind of pulse demagnetizer for taking off magnetic treatment to pit wood.
Background technology
Existing in ore dressing magnetic separation process flow process, commonly there is magnetic coagulation, magnetic particle has a strong impact on efficiency and the concentrate grade of preparation equipment together with reuniting with non-magnetic particle.In order to solve the phenomenon of magnetic coagulation, usual employing high-efficiency pulse demagnetizer, it can carry out de-magnetic to ore pulp breeze preferably, can eliminate the magnetic group in magnetic ore particle or magnetic linkage, improve sorting and criticize mark, raising and the concentrate grade of ore grinding powder efficiency have good result.
As shown in Figure 2 be exactly the fundamental diagram of existing high-efficiency pulse demagnetizer, its course of work is the positive half cycle at alternating voltage, silicon controlled toggle triggers controllable silicon, make controlled silicon conducting to friendship ac voltage rectifier, become the pulsating dc voltage of positive half cycle, by current-limiting resistance, energy storage capacitor is charged, at the negative half period of alternating current, controllable silicon turns off due to negative voltage, now, silicon controlled toggle triggers controllable silicon, make controlled silicon conducting, energy storage capacitor is discharged to coil by the controllable silicon of conducting, induction in coil produces high de-magnetic magnetic field, realize taking off magnetic to the sample in coil.DC power supply provides the voltage of direct current 12V for trigger.
But the shortcoming of existing pulse demagnetizer is as follows:
1, demagnetizer adopts the conducting in turn of positive-negative half-cycle twice silicon controlled, this is very high to the reliability requirement of trigger, within the time of half cycle, no matter whether the charging of demagnetizer is full of, negative half period all must discharge de-magnetic, does not hold good security to the de-magnetic magnetic field intensity of demagnetizer, and this just makes two silicon controlled phase-triggereds must be contrary, and trigger must react reliable, otherwise the phenomenon of Lou de-magnetic can be produced.
2, silicon controlled rectifier is directly connected with electrical network 380V, and demagnetizer can be subject to the interference of electrical network, and insecure false triggering action occurs, and also produces interference to electrical network when demagnetizer work simultaneously.
Summary of the invention
The object of the invention is to solve existing pulse demagnetizer and interfere with each other to being difficult to reach the undetected de-magnetic of reaction and three phase mains and demagnetizer electrical network in the too high practice of trigger requirement the problem causing trigger to judge action by accident.
For this reason, the invention provides a kind of pulse demagnetizer for taking off magnetic treatment to pit wood, comprise the keying rectification unit be connected with three phase mains; Described keying rectification unit output successively and connect energy storage capacitor, switch controllable silicon, de-magnetic coil; Described keying rectification unit output connects energy storage capacitor by current-limiting resistance; Described three phase mains is connected with direct-current switch power supply; Described direct-current switch power supply connects silicon controlled toggle, and described keying rectification unit comprises solenoid-operated switch and rectification module;
Described energy storage capacitor is by voltage sampler connecting valve controllable silicon;
Described direct-current switch power supply connects silicon controlled toggle by PLC;
Described silicon controlled toggle one end connecting valve controllable silicon, the other end connects solenoid-operated switch and voltage sampler by PLC.
Further, described solenoid-operated switch adopts ac solid relay; Described rectification module is bridge rectifier structure; The output of described ac solid relay connects bridge-type rectifier structure.
Further, described voltage sampler comprises sample resistance one and the sample resistance two of two series connection; Described LC Programmable Logic Controller is connected between sample resistance one and sample resistance two by wire.
technique effect of the present invention and advantage as follows:
A kind of pulse demagnetizer for taking off magnetic treatment to pit wood provided by the invention, comprises the keying rectification unit be connected with three phase mains; Described keying rectification unit output successively and connect energy storage capacitor, switch controllable silicon, de-magnetic coil; Described keying rectification unit output connects energy storage capacitor by current-limiting resistance; Described three phase mains is connected with direct-current switch power supply; Described direct-current switch power supply connects silicon controlled toggle, and described keying rectification unit comprises solenoid-operated switch and rectification module;
Described energy storage capacitor is by voltage sampler connecting valve controllable silicon;
Described direct-current switch power supply connects silicon controlled toggle by PLC;
Described silicon controlled toggle one end connecting valve controllable silicon, the other end connects solenoid-operated switch and voltage sampler by PLC.
The preferred solid-state AC relay of the present invention and bridge rectifier structure, achieve effective isolation of electrical network before electrical network and rectification after rectification, when reaching demagnetizer work and the electromagnetic field of electrical network do not disturb mutually, improve the functional reliability of demagnetizer.Further the present invention adopts the PLC Programmable Logic Controller of technical grade and voltage sampler can accurately judge and the control charging process of demagnetizer and the operation of de-magnetic process, realize the high reliability of demagnetizer work, reduce the difficulty of silicon controlled toggle simultaneously.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the embodiment of the present invention;
Fig. 2 is the circuit theory diagrams of existing pulse demagnetizer.
Embodiment
Below with reference to embodiment accompanying drawing, the present invention is described in further details.
Embodiment:
The invention provides a kind of a kind of pulse demagnetizer for taking off magnetic treatment to pit wood as shown in Figure 1, comprise the keying rectification unit be connected with three phase mains; Described keying rectification unit output successively and connect energy storage capacitor 4, switch controllable silicon 6, de-magnetic coil 7; Described keying rectification unit output connects energy storage capacitor 4 by current-limiting resistance 3; Described three phase mains is connected with direct-current switch power supply 8; Described direct-current switch power supply 8 connects silicon controlled toggle 10, and described keying rectification unit comprises solenoid-operated switch and rectification module;
Described energy storage capacitor 4 is by voltage sampler 5 connecting valve controllable silicon 6;
Described direct-current switch power supply 8 connects silicon controlled toggle 10 by PLC 9;
Described silicon controlled toggle 10 one end connecting valve controllable silicon 6, the other end connects solenoid-operated switch and voltage sampler by PLC 9.
Further, described solenoid-operated switch adopts ac solid relay 1; Described rectification module is bridge rectifier structure 2; The output of described ac solid relay 1 connects bridge-type rectifier structure 2.
Further, as shown in Figure 1, described voltage sampler 5 comprises sample resistance one and the sample resistance two of two series connection; Described LC Programmable Logic Controller 10 is connected between sample resistance one and sample resistance two by wire.
operation principle of the present invention is as follows:
With reference to Fig. 2, charging process: PLC 9 controls the conducting of solid-state AC relay 1, three-phase alternating voltage 380V is direct voltage by rectification module 2 ac voltage rectifier, charge through current-limiting resistance 3 pairs of energy storage capacitors 4 again, voltage on energy storage capacitor 4 is input to PLC 9 by voltage sampler 5 the voltage on energy storage capacitor 4, PLC 9 is equal with the voltage set in PLC 9 once the voltage determined on energy storage capacitor 4, PLC 9 controls solid-state AC relay 1 and turns off, realize the mutually isolated of charging process and de-magnetic process, reach demagnetizer work and noisy effect is not had to electrical network, charging process is once terminate, PLC 9 controls trigger board 10 and works, trigger board 10 triggers controllable silicon 6, make controllable silicon 6 conducting, electric energy on energy storage capacitor 4 is discharged to de-magnetic coil 7 by controllable silicon 6, because the internal resistance self-inductance of de-magnetic coil 7 is all very little, the electric current produced in de-magnetic coil 7 is larger, big current produces very strong induction and takes off magnetic magnetic field, realize the de-magnetic to sample in pipeline.
as shown in Figure 1, the operation principle of existing pulse demagnetizer is as follows:
At the positive half cycle of alternating voltage, silicon controlled toggle 17 triggers controllable silicon 11, make controllable silicon 11 conducting to friendship ac voltage rectifier, become the pulsating dc voltage of positive half cycle, charged by current-limiting resistance 12 pairs of energy storage capacitors 13, at the negative half period of alternating current, controllable silicon 11 turns off due to negative voltage, now, silicon controlled toggle 17 triggers controllable silicon 14, makes controllable silicon 14 conducting, and energy storage capacitor 13 is discharged by controllable silicon 14 pairs of coils 15 of conducting, produce high de-magnetic magnetic field at coil 15 internal induction, realize taking off magnetic to the sample in coil 15.DC power supply 16 provides the voltage of direct current 12V for trigger 17.
existing pulse demagnetizer technique effect of the present invention of comparing is as follows:
The preferred solid-state AC relay of the present invention and bridge rectifier structure, achieve effective isolation of electrical network before electrical network and rectification after rectification, when reaching demagnetizer work and the electromagnetic field of electrical network do not disturb mutually, improve the functional reliability of demagnetizer.
Further the present invention adopts the PLC Programmable Logic Controller of technical grade and voltage sampler can accurately judge and the control charging process of demagnetizer and the operation of de-magnetic process, realize the high reliability of demagnetizer work, reduce the difficulty of silicon controlled toggle simultaneously.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (3)
1., for taking off a pulse demagnetizer for magnetic treatment to pit wood, comprise the keying rectification unit be connected with three phase mains; Described keying rectification unit output successively and connect energy storage capacitor, switch controllable silicon, de-magnetic coil; Described keying rectification unit output connects energy storage capacitor by current-limiting resistance; Described three phase mains is connected with direct-current switch power supply; Described direct-current switch power supply connects silicon controlled toggle, it is characterized in that: described keying rectification unit comprises solenoid-operated switch and rectification module;
Described energy storage capacitor is by voltage sampler connecting valve controllable silicon;
Described direct-current switch power supply connects silicon controlled toggle by PLC;
Described silicon controlled toggle one end connecting valve controllable silicon, the other end connects solenoid-operated switch and voltage sampler by PLC.
2. a kind of pulse demagnetizer for taking off magnetic treatment to pit wood as claimed in claim 1, is characterized in that, described solenoid-operated switch adopts ac solid relay; Described rectification module is bridge rectifier structure; The output of described ac solid relay connects bridge-type rectifier structure.
3. a kind of pulse demagnetizer for taking off magnetic treatment to pit wood as claimed in claim 1, is characterized in that, described voltage sampler comprises sample resistances one and the sample resistance two of two series connection; Described LC Programmable Logic Controller is connected between sample resistance one and sample resistance two by wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420540726.XU CN204066934U (en) | 2014-09-20 | 2014-09-20 | A kind of pulse demagnetizer for taking off magnetic treatment to pit wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420540726.XU CN204066934U (en) | 2014-09-20 | 2014-09-20 | A kind of pulse demagnetizer for taking off magnetic treatment to pit wood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204066934U true CN204066934U (en) | 2014-12-31 |
Family
ID=52208394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420540726.XU Expired - Fee Related CN204066934U (en) | 2014-09-20 | 2014-09-20 | A kind of pulse demagnetizer for taking off magnetic treatment to pit wood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204066934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237922A (en) * | 2021-05-31 | 2021-08-10 | 唐山森普工程设计有限公司 | Magnetic object detection and automatic demagnetizing sampling system and sampling method thereof |
-
2014
- 2014-09-20 CN CN201420540726.XU patent/CN204066934U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237922A (en) * | 2021-05-31 | 2021-08-10 | 唐山森普工程设计有限公司 | Magnetic object detection and automatic demagnetizing sampling system and sampling method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102419562B (en) | Control method of relay with inductive load, and household appliance | |
| CN107895931A (en) | A kind of no-voltage opens the switch implementation method closed with zero current | |
| CN201663548U (en) | High-power intelligent high-frequency switch power supply based on DSP (Digital Signal Processing) technology | |
| CN102655323B (en) | A kind of live wire automatic identification change-over circuit of alternating current zero | |
| CN204066934U (en) | A kind of pulse demagnetizer for taking off magnetic treatment to pit wood | |
| CN204244499U (en) | Invariable power varible-frequency electromagnetic heater | |
| CN206038763U (en) | Impulse current's testing arrangement | |
| CN103986362B (en) | A kind of Z source inverter circuit | |
| CN205826756U (en) | A kind of commercial induction cooker detection device | |
| CN205490112U (en) | Automatic discharge device | |
| CN202998532U (en) | Electromagnetic induction heating control circuit based on digital signal processing | |
| CN103592511A (en) | Circuit for detecting alternating current power supply frequency | |
| CN104578339A (en) | Inductive power-obtaining device of high-voltage line robot and working method of inductive power-obtaining device | |
| CN205015392U (en) | Zero -crossing detection circuit | |
| CN203554321U (en) | IGBT rectifier circuit | |
| CN203206133U (en) | Universal socket | |
| CN202256445U (en) | Voltage detection circuit | |
| CN206195741U (en) | Solid state relay that ac peak values switched on | |
| CN201297776Y (en) | Overvoltage protection circuit of quasi-resonance electromagnet water heater | |
| CN206790370U (en) | A kind of control circuit of pulsed magnetic generator | |
| CN205584598U (en) | Protection circuit that UV lamp strikes is eliminated to intelligence | |
| CN204190963U (en) | Electromagnetic heating circuit for preventing vibration from being stopped | |
| CN204046450U (en) | Welder switch control circuit | |
| CN107370437B (en) | Phase-shifting motor electricity-saving device | |
| CN207200611U (en) | Phase-shifting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20150920 |
|
| EXPY | Termination of patent right or utility model |