CN100518947C - Belt type iron remoivng device based on iron part size excitation - Google Patents
Belt type iron remoivng device based on iron part size excitation Download PDFInfo
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- CN100518947C CN100518947C CNB031160980A CN03116098A CN100518947C CN 100518947 C CN100518947 C CN 100518947C CN B031160980 A CNB031160980 A CN B031160980A CN 03116098 A CN03116098 A CN 03116098A CN 100518947 C CN100518947 C CN 100518947C
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- circuit
- belt
- iron
- excitation
- iron removing
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Abstract
A belt-type iron removing apparatus able to regulate the magnetic excitation according to size of iron parts on belt conveyer is disclosed. The metal part signal is output from the detecting circuit with oscillator and detecting coils and then compared with the predefined big, medium and small sizes in comparator. The compared result is output to an exciting voltage controller and iron-removing belt controller to excite the electromagnet to relative magnetic field strength and drive the iron-removing belt. Its advantages are high effect and low energy consumption.
Description
Technical field
The present invention relates to from the shape solid non-magnetic material conveyer belt that looses, remove the belt deironing apparatus of steel and iron parts; it is the auxiliary equipment of belt conveyer; can protect belt conveyer and later process equipment to exempt from damage, be mainly used in industries such as metallurgy, coal, generating, cement, papermaking, harbour.
Background technology
The belt deironing apparatus of existing belt conveyer non-magnetic material deironing be on the material belt conveyer device metal object detector (magnetic test coil), belt tramp iron separator, deironing apparatus controller, one abandon equipment such as iron charge bucket.The deironing apparatus controller comprises oscillating circuit, signal deteching circuit, signal comparator circuit, sensitivity adjusting circuit, the detection signal output circuit, the excitation voltage control circuit, the excitation rectification circuit, the iron removing belt drive circuit, the magnetic test coil output line connects the oscillating circuit of deironing apparatus controller, oscillating circuit connects signal deteching circuit, testing circuit connects signal comparator circuit, sensitivity adjusting circuit connects signal comparator circuit, signal comparator circuit output connects detection signal output circuit output metal detecting signal to the magnet excitation voltage control circuit, one tunnel output of magnet excitation voltage control circuit connects the excitation rectification circuit, one the tunnel connects the rated excitation voltage control circuit, output connect the excitation rectification circuit after the rated excitation voltage control circuit was accepted the travelling belt CRANK PULSES, the electromagnet of excitation rectification circuit tape splicing formula tramp iron separator, iron removing belt drive circuit are accepted the iron removing belt of output tape splicing formula tramp iron separator behind the travelling belt CRANK PULSES.When belt conveyer running transported material, the deironing duty of belt deironing apparatus has two kinds: duty commonly used is the rated excitation state, it is a kind of successional duty, as long as transport the belt conveyer running of material, the belt deironing apparatus receives the belt conveyer CRANK PULSES, and the electromagnet of belt tramp iron separator is promptly with the rated voltage excitation, and the iron removing belt of belt tramp iron separator is running simultaneously also, at this moment, metal detector does not participate in controlling.The belt tramp iron separator is to work long hours continuously under this duty, overheated in order to prevent electromagnet, electromagnet can only be with the rated voltage excitation, so magnetic a little less than, can only remove the metal of some fritters, this duty is no matter there is the iron iron-free, and the power consumption of belt tramp iron separator long time continuous working is bigger.Second kind of duty is electromagnet magnet excitation state, is a kind of duty of discontinuity, controlled by metal detector.The metal detector of device in belt tramp iron separator the place ahead detects and is mixed with ironware in the transported material, metal detector has sent the iron signal, and the electromagnet of the deironing apparatus controller of belt deironing apparatus control belt tramp iron separator is magnet excitation (magnet excitation voltage is generally 1.5 times of rated excitation voltage) and stop the rated voltage excitation at short notice.Because the belt tramp iron separator definite value work that exceeds the quata under this duty, overheated in order to prevent electromagnet, electromagnet can only be with the discontinuous operation of short time, electromagnet magnetic is stronger in this manner, can remove relatively large metal, but because the belt tramp iron separator has gathered certain heat always with the long-term work of rated voltage excited work state before the magnet excitation duty, these heats that gather can influence the excitation efficiency of magnet excitation duty.
Summary of the invention
The present invention has overcome the defective that energy consumption is big in the prior art, de-ironing efficiency is low, and a kind of belt deironing apparatus according to ironware size excitation is provided, and this device adopts intermittent duty, can energy efficient, improve de-ferrous effect.
The present invention is achieved in that a kind of belt deironing apparatus according to ironware size excitation, comprise magnetic test coil, the belt tramp iron separator of forming by electromagnet and iron removing belt, the deironing apparatus controller, abandon the iron charge bucket, the deironing apparatus controller comprises oscillating circuit, signal deteching circuit, large, medium and small signal comparator circuit, initialization circuit is regulated in large, medium and small sensitivity, large, medium and small detection signal output circuit, strong, in, weak excitation voltage control circuit and iron removing belt control circuit, the excitation rectification circuit, the iron removing belt drive circuit; The electromagnet of excitation rectification circuit tape splicing formula tramp iron separator, the iron removing belt of iron removing belt drive circuit output tape splicing formula tramp iron separator, by force, in, weak excitation voltage control circuit and iron removing belt control circuit are accepted travelling belt CRANK PULSES and output signal control excitation rectification circuit and iron removing belt drive circuit, signal deteching circuit through oscillating circuit accept magnetic test coil output the metalwork signal is arranged after, that has preset in comparison circuit is big, in, three comparators of little metal setting value compare back output analog value and give corresponding big, in, little detection signal output circuit, detection signal output circuit output corresponding signal is given strong, in, weak excitation voltage control circuit and iron removing belt control circuit, make the electromagnet excitation through the excitation rectification circuit, the iron removing belt drive circuit drives iron removing belt and rotates deironing, and ironware falls into to be abandoned in the iron charge bucket.
Operation principle of the present invention is: install a metal detection coil and a belt electric magnetic iron remover according to this in belt conveyer superinverse materials flow direction, the action of belt electric magnetic iron remover is controlled by the CRANK PULSES of detected signal of metal detection coil and belt conveyer.The detected signal of metal detection coil is by the processing of deironing apparatus deironing apparatus controller, deironing apparatus deironing apparatus controller comprises and having greatly, in, little three kinds of detection sensitivities are set, have big, in, little three kinds of detection signals output, it is strong to have control, in, weak three kinds of excitation voltages output, by force, in, the iron removing belt control circuit of weak excitation voltage control circuit and control iron removing belt, to be divided into greatly by the steel and iron parts of sneaking in the non-magnetic material of metal detection coil, in, little three kinds of signals, again by the deironing apparatus controller respectively with by force, in, a little less than, not having four kinds of states controls respectively the electromagnet and the iron removing belt of belt electric magnetic iron remover.When passing through big ironware on the belt conveyer, adopt magnet excitation, excitation in adopting during by middle ironware, adopt weak excitation during by small iron element, no ironware by the time then the belt electric magnetic iron remover do not work, the belt electric magnetic iron remover is in discontinuous operation all the time, can energy saving, and electromagnet often is in cold conditions, can when magnet excitation, improve exciting current magnet excitation magnetic field is increased, improve de-ironing efficiency.
Description of drawings
Fig. 1 is the belt deironing apparatus block diagram of the present invention according to ironware size excitation, Fig. 2 is the belt deironing apparatus control principle figure according to ironware size excitation, Fig. 3 is a belt deironing apparatus iron removal schematic diagram, and Fig. 4 is a belt tramp iron separator schematic diagram, and Fig. 5 is existing belt deironing apparatus block diagram.
Among the figure: 1 metal detector (magnetic test coil), 2 belt tramp iron separators, 3 electromagnet, 4 iron removing belt, 5 travelling belt control circuits, 6 travelling belt CRANK PULSES, 7 oscillating circuits, 8 signal deteching circuits, 9 iron removing belt drive circuits, 10 excitation rectification circuits, 11 sensitivity adjusting circuits, 12 signal comparator circuits, 13 detection signal output circuits, 14 metal detecting signals, 15 magnet excitation voltage control circuits, 16 rated excitation voltage control circuits, 17 prior art deironing apparatus controllers, initialization circuit is regulated in 18 big sensitivity, and 19 medium sensitivities are regulated initialization circuit, and 20 sluggishness are regulated initialization circuit, 21 is big, in, the small-signal comparison circuit, 22 big detection signal output circuits, detection signal output circuit in 23,24 little detection signal output circuits, 25 little metal detecting signals, metal detecting signal in 26,27 big metal detecting signals, the last 28, in, weak excitation voltage control circuit and iron removing belt control circuit, 29 deironing apparatus controllers of the present invention, 30 deironing apparatus controllers, 31 belt conveyers, 32 material direct of travels, 33 hang the steel framework, 34 tramp iron separator suspenders, 35 iron removing belt driven rollers, 36 iron removing belt backing rolls, 37 iron removing belt drive motors, 38 abandon the iron charge bucket, 39 non-magnetic materials, 40 assorted ironwares.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, fortune has non-magnetic material 39 on the belt conveyer 31, it transports material direct of travel 32 as shown by arrows, when being mixed with metal derby 40 in the material of transportation, material 39 will be pressed arrow 32 directions by belt conveyer 31 with metal derby 40, metal detector 1 is housed on the belt conveyer 31, on the belt conveyer 31 at metal detector 1 rear, belt tramp iron separator 2 is housed, opening of belt conveyer 31, stop signal, the operation control of the detection signal of metal detector 1 and belt tramp iron separator all inserts deironing apparatus deironing apparatus controller 29.Have in the deironing apparatus controller 29 big by 18, in 19, little 20 3 kinds of detection sensitivities are set and there have to be big by 22, in 23, little 24 3 kinds of detection signals output and have control strong, in, weak three kinds of excitation voltages output strong, in, the iron removing belt control circuit 28 of weak excitation voltage control circuit and control iron removing belt.
Duty one (iron-free): 1. travelling belt control circuit 5 send CRANK PULSES to deironing apparatus controller 29 strong, in, weak excitation voltage control circuit and iron removing belt control circuit 28, make the deironing apparatus controller be in the standby SBR.2. metal detector 1 detects does not have metal derby in the transported material, do not sent the metal derby signal to deironing apparatus controller 29.3. the electromagnet 3 of deironing apparatus controller 29 control belt tramp iron separators 2 stops excitation, and it is out of service to control iron removing belt 4 simultaneously, and belt tramp iron separator 2 is in and stops holding state.
Duty two (behind the state one that works on, little steel spare being arranged in the transported material): 1. metal detector 1 detects little steel spare in the transported material, send signal to deironing apparatus controller 29.2. deironing apparatus controller 29 is set the signal and the sensitivity of metal detector 1 big by 22, in 23, little 24 circuit signals compare in signal comparator circuit 21, after comparison, the little metal detection signal 25 of little detection signal output circuit 24 outputs of comparison circuit 21 controls is to strong, in, weak excitation voltage control circuit and iron removing belt control circuit 28, by force, in, weak excitation voltage control circuit and weak excitation voltage of iron removing belt control circuit 28 outputs carry out rectification to excitation rectification circuit 10, the electromagnet 3 that power supply is delivered to belt tramp iron separator 2 after the rectification carries out excitation, produces magnetic field.Strong, in, weak excitation voltage control circuit and the weak excitation voltage of iron removing belt control circuit 28 outputs be during to excitation rectification circuit 10, by force, in, weak excitation voltage control circuit and iron removing belt control circuit 28 send an iron removing belt run signal to iron removing belt drive circuit 9 simultaneously, iron removing belt drive circuit 9 is connected iron removing belt 4 runnings that power supplys make belt tramp iron separator 2.3. when the little steel spare 40 that is mingled with in the transported material 39 moves through belt tramp iron separators 2 belows along with travelling belt 31, magnetic field by the electromagnet 3 of belt tramp iron separator 2 picks up, after electromagnet 3 picks up the little steel spare 40 that is mingled with, iron removing belt 4 bands that do not stopped on the belt tramp iron separator 2 to rotate are from the magnetic force district of electromagnet 3, what arrive no magnetic abandons iron charge bucket 38 tops, little steel spare 40 losss of excitation are fallen under the effect of gravity and are abandoned in the iron charge bucket 38, finish the process of removing little steel spare in the non-magnetic material.4. when no longer being mingled with steel and iron parts 40 in the transported material 39 of belt conveyer 31, metal detector 1 has not sent the metalwork signal to deironing apparatus controller 29.The electromagnet 3 of deironing apparatus controller 29 control belt tramp iron separators 2 stops excitation, and it is out of service to control iron removing belt 4 simultaneously, and belt tramp iron separator 2 is in and stops holding state, returns duty one (iron-free).
Duty three (behind the state one that works on, middle steel and iron parts being arranged in the transported material): 1. metal detector 1 detects middle steel and iron parts in the transported material, send signal to deironing apparatus controller 29.2. deironing apparatus controller 29 centering iron and steel Signal Processing processes are identical with the process of duty two, but different be electric current input electromagnet during exciting current is.3. identical with the process of duty two with 4. processes.
Duty four (behind the state one that works on, big steel spare being arranged in the transported material): 1. metal detector 1 detects big steel spare in the transported material, send signal to deironing apparatus controller 29.2. 29 pairs of big steel Signal Processing of deironing apparatus controller process is identical with the process of duty two, but different be that exciting current is big electric current input electromagnet.3. identical with the process of duty two with 4. processes.
When belt conveyer was out of service, travelling belt control circuit 5 stopped to send CRANK PULSES to deironing apparatus controller 29, and the 29 cancellation standbies of deironing apparatus controller are prepared, and was in the signal condition that stops to handle metal detector 1.Belt tramp iron separator 2 quits work and waits for that belt conveyer 31 operations enter standby and prepare.
After the beginning deironing a predefined delay time is arranged, this delay time is that the distance of metalwork from the metal detection coil to the tramp iron separator electromagnet of desiring to remove adds the deironing working time.Delay time arrives, and then stops excitation and stops the iron removing belt running.If continuing has iron, then tramp iron separator continuous operation; If iron-free, then tramp iron separator quits work, and wait for has the ironworker to do next time.
It is to determine after surveying according to the size of metalwork sample that setting value is regulated in sensitivity, and big metal setting value, middle metal setting value, the little metal setting value determined are preset in the comparison circuit as standard value.
Claims (1)
1. belt deironing apparatus according to ironware size excitation, comprise magnetic test coil (1), the belt tramp iron separator of forming by electromagnet (3) and iron removing belt (4) (2), the deironing apparatus controller, abandon iron charge bucket (38), the deironing apparatus controller comprises oscillating circuit (7), signal deteching circuit (8), signal comparator circuit, sensitivity adjusting circuit, the detection signal output circuit, the excitation voltage control circuit, excitation rectification circuit (10), iron removing belt drive circuit (9), the electromagnet (3) of excitation rectification circuit (10) tape splicing formula tramp iron separator (2), the iron removing belt (4) of iron removing belt drive circuit (9) output tape splicing formula tramp iron separator (2), it is characterized in that signal comparator circuit is big, in, small-signal comparison circuit (21), sensitivity adjusting circuit is big (18), in (19), initialization circuit is regulated in little (20) sensitivity, the detection signal output circuit is big (22), in (23), little (24) detection signal output circuit, the excitation voltage control circuit is strong, in, weak excitation voltage control circuit and iron removing belt control circuit (28), by force, in, weak excitation voltage control circuit and iron removing belt control circuit (28) are accepted travelling belt CRANK PULSES (6) and output signal control excitation rectification circuit (10) and iron removing belt drive circuit (9), signal deteching circuit (8) through oscillating circuit (7) accept magnetic test coil (1) output the metalwork signal is arranged after, big (18) of in comparison circuit (21), having preset, in (19), three comparators of little (20) metal setting value compare back output analog value and give corresponding big (22), in (23), little (24) detection signal output circuit, detection signal output circuit output corresponding signal is given strong, in, weak excitation voltage control circuit and iron removing belt control circuit (28), make electromagnet (3) excitation through excitation rectification circuit (10), iron removing belt drive circuit (9) drives iron removing belt (4) and rotates deironing, and ironware (40) falls into to be abandoned in the iron charge bucket (38); Magnetic test coil (1) detects when not having ironware (40) in the transported material, do not sent the ironware signal to deironing apparatus controller (29), the electromagnet (3) of deironing apparatus controller (29) control belt tramp iron separator (2) stops excitation, it is out of service to control iron removing belt (4) simultaneously, and belt tramp iron separator (2) is in and stops holding state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031160980A CN100518947C (en) | 2003-03-31 | 2003-03-31 | Belt type iron remoivng device based on iron part size excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031160980A CN100518947C (en) | 2003-03-31 | 2003-03-31 | Belt type iron remoivng device based on iron part size excitation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1533842A CN1533842A (en) | 2004-10-06 |
| CN100518947C true CN100518947C (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031160980A Expired - Lifetime CN100518947C (en) | 2003-03-31 | 2003-03-31 | Belt type iron remoivng device based on iron part size excitation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100518947C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846652B (en) * | 2009-03-25 | 2012-07-04 | 宝山钢铁股份有限公司 | Detecting device and method for front iron part of belt-type constant magnetic iron remover |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3095897B2 (en) * | 1992-08-07 | 2000-10-10 | 株式会社小松製作所 | Automatic sorting equipment for iron powder and sand |
| CN1292348A (en) * | 2000-10-30 | 2001-04-25 | 宝山钢铁股份有限公司 | Recovery iron-removing equipment of conveyer equipment |
| CN2524836Y (en) * | 2001-12-14 | 2002-12-11 | 岳阳鸿仪电磁科技有限公司 | New wind cooling self unloading electromagnetic iron remover |
-
2003
- 2003-03-31 CN CNB031160980A patent/CN100518947C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3095897B2 (en) * | 1992-08-07 | 2000-10-10 | 株式会社小松製作所 | Automatic sorting equipment for iron powder and sand |
| CN1292348A (en) * | 2000-10-30 | 2001-04-25 | 宝山钢铁股份有限公司 | Recovery iron-removing equipment of conveyer equipment |
| CN2524836Y (en) * | 2001-12-14 | 2002-12-11 | 岳阳鸿仪电磁科技有限公司 | New wind cooling self unloading electromagnetic iron remover |
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| Publication number | Publication date |
|---|---|
| CN1533842A (en) | 2004-10-06 |
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Granted publication date: 20090729 |