CN104174485A - Dust removal method and dust removal device of vacuum melting furnace - Google Patents
Dust removal method and dust removal device of vacuum melting furnace Download PDFInfo
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- CN104174485A CN104174485A CN201410306637.3A CN201410306637A CN104174485A CN 104174485 A CN104174485 A CN 104174485A CN 201410306637 A CN201410306637 A CN 201410306637A CN 104174485 A CN104174485 A CN 104174485A
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- dust
- melting furnace
- vacuum melting
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Abstract
The invention discloses a dust removal method and dust removal device of a vacuum melting furnace. The dust removal method comprises the following steps that firstly, electromagnetic dust collectors are arranged in a connecting pipeline between a furnace body of the vacuum melting furnace and a vacuum-pumping system and a connecting pipeline between the furnace body and a circulating air cooling system, each electromagnetic dust collector is provided with a plurality of dust collection plates, gaps are formed between the adjacent dust collection plates, a dust storage bin is arranged under each electromagnetic dust collector, and the dust storage bin is provided with a dust storage bin butterfly valve; secondly, the electromagnetic dust collectors at all positions are started, in the vacuum pumping or air cooling stage of the vacuum melting furnace, dust in the furnace is captured by the dust collection plates, and furnace gas passes through the gaps between the dust collection plates; finally, the vacuum melting furnace is put into the shutdown state, the electromagnetic dust collectors are in power failure and are demagnetized, the dust slides to the position above the dust storage bin butterfly valve from the dust collection plates, the dust storage bin butterfly valve is opened, and the dust falls into the dust storage bin. The method reduces the fault rate of a vacuum pump, the service life is prolonged, meanwhile, running of the vacuum melting furnace is reliable, and the resource utilization rate is high.
Description
Technical field
The present invention relates to vacuum melting furnace, particularly a kind of dust collection method of vacuum melting furnace and dust arrester.
Background technology
Existing vacuum melting furnace, in the various raw metal processes of melting, can generate a large amount of metallic dusts.In the time vacuumizing, dust is easily brought in vavuum pump by air-flow, in order to stop that dust enters pumped vacuum systems, normally at the front end of vacuum system, one sets filtering device is installed.
But existing dust filtering device effect is unsatisfactory, in filter, filter screen is if it were not for being exactly excessively slightly meticulous, filter screen is excessively thick, and filter effect is undesirable, and filter screen is meticulous, can obviously affect again the efficiency vacuumizing, and the dismounting of filter screen and cleaning also all inconvenient.
Further, move after multiple heats at smelting furnace, a large amount of dust also can be adsorbed on inboard wall of burner hearth, large to the cleaning difficulty of burner hearth, workload is large, also can be to environment when cleaning.And the dust cleaning out containing other impurity, is often thrown away as discarded object, both contaminated environment, fail again efficient utilization.And, once cross fine dust through filter screen, enter vacuum pump body mechanical rotation position, will make vavuum pump stuck, must clean vavuum pump integral demounting, produce higher maintenance cost.
The information that is disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply that in any form this information structure has been the known prior art of persons skilled in the art.
Summary of the invention
The dust collection method and the dust arrester that the object of the present invention is to provide a kind of vacuum melting furnace, can reduce vacuum pump failure rate, improves service life, also makes vacuum melting furnace reliable, reaches the effect of energy-saving and emission-reduction, comprehensive utilization of resources.
For achieving the above object, the invention provides a kind of dust collection method of vacuum melting furnace, comprise the steps: step 1, in connecting pipe in connecting pipe between body of heater and the pumped vacuum systems of vacuum melting furnace and between body of heater and circulating air cooling system, electromagnetism dust catcher is all installed, electromagnetism dust catcher has some dust-catching boards, between adjacent dust-catching board, have gap, and under each electromagnetism dust catcher, dust storehouse is installed, dust storehouse has dust storehouse butterfly valve; Step 2, starts electromagnetism dust catcher everywhere, in vacuum melting stove evacuation or air-cooled stage, dust in stove is caught by dust-catching board, and furnace gas passes through from the gap between dust-catching board; Step 3, makes vacuum melting furnace in stopped status, and electromagnetism dust catcher power-off demagnetization, and dust is slipped to the top of dust storehouse butterfly valve from dust-catching board, open dust storehouse butterfly valve, and dust falls into dust storehouse.
Preferably, the lower end of dust storehouse is tightly connected by discharging plate valve and dress powder tank.
The present invention also provides a kind of dust arrester of vacuum melting furnace, comprise: electromagnetism dust catcher, it is arranged in the connecting pipe in the connecting pipe between body of heater and the pumped vacuum systems of vacuum melting furnace and between body of heater and circulating air cooling system, electromagnetism dust catcher has some dust-catching boards that are obliquely installed, and between adjacent dust-catching board, has gap; Dust storehouse, it is infundibulate, dust storehouse be arranged on each electromagnetism dust catcher under, dust storehouse is connected by dust storehouse butterfly valve with electromagnetism dust catcher.
Preferably, electromagnetism dust catcher also comprises the electromagnet N and the electromagnet S that are oppositely arranged, and electromagnet N and electromagnet S are separately fixed on magnetic conductive board, and the two ends of dust-catching board are located at respectively on magnetic conductive board.
Preferably, some dust-catching boards are set to a row, and dust-catching board is obliquely installed.
Preferably, be provided with at least 4 row's dust-catching boards between two magnetic conductive boards, the two ends of every row's dust-catching board are crisscross arranged.
Preferably, dust-catching board is galvanized iron sheet, and plate surface fineness is 1 grade, is beneficial to dust and comes off smoothly after galvanized iron sheet demagnetization.
Preferably, also comprise dress powder tank, the lower end of dust storehouse is tightly connected by discharging plate valve and dress powder tank.
Preferably, discharging plate valve and dust storehouse butterfly valve are closed type pneumatic control valve.
Compared with prior art, the present invention has following beneficial effect: by electromagnetism dust catcher being installed in the connecting pipe in the connecting pipe between body of heater and the pumped vacuum systems of vacuum melting furnace and between body of heater and circulating air cooling system, vacuum melting furnace can be made steel to volatile matter and the dust producing in vacuum melting stove evacuation or air-cooled stage effectively collects, greatly improve furnace inner environment, extended the service life of vavuum pump; The device of the required installation of the method, simple in structure, reliable and stable, dust collecting effect is obvious.
Brief description of the drawings
Fig. 1 is according to the scheme of installation of the dust arrester of vacuum melting furnace of the present invention;
Fig. 2 is according to the structural representation of the electromagnetism dust catcher in the dust arrester of vacuum melting furnace of the present invention.
Main description of reference numerals:
1-electromagnetism dust catcher, 11-connecting pipe, 2-dust-catching board, 3-magnetic conductive board, 6-dust storehouse, 8-discharging plate valve, 10-dust storehouse butterfly valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of detailed description of the invention.
Unless separately there is other clearly to represent, otherwise in whole description and claims, term " comprises " or its conversion was stated being understood to include as " comprising " or " including " etc. element or part, and do not get rid of other element or other part.
Embodiment 1
As shown in Figure 1, first the dust arrester of a kind of vacuum melting furnace of the specific embodiment of the invention is described, the dust arrester of this vacuum melting furnace mainly comprises electromagnetism dust catcher 1 and dust storehouse 6, wherein electromagnetism dust catcher 1 is arranged on the inside (connecting pipe of part shown in figure of the connecting pipe in the connecting pipe between body of heater and the pumped vacuum systems of vacuum melting furnace and between body of heater and circulating air cooling system, and be labeled as 11), electromagnetism dust catcher 1 has some dust-catching boards that are obliquely installed 2 (referring to Fig. 2), between adjacent dust-catching board 2, there is gap, when vacuum melting furnace enters vacuumizing phase, connect the power supply of the electromagnetism dust catcher in pumped vacuum systems pipeline, now, the air-flow that in stove, dust is extracted out with vavuum pump is through electromagnetism dust catcher, caught by dust-catching board 2, do not pass through from the gap of 2 of dust-catching boards containing the furnace gas of dust, enter vavuum pump, when vacuum melting furnace enters the air-cooled stage, connect the power supply of electromagnetism dust catcher in air-cooled pipeline, now, in stove, dust is with air-cooled unit circulation time in stove, and air-flow, through electromagnetism dust catcher, is caught by dust-catching board 2, do not pass through from the gap of 2 of dust-catching boards containing the furnace gas of dust, then return in burner hearth.Dust storehouse 6 is infundibulate, dust storehouse 6 be arranged on each electromagnetism dust catcher 1 under (referring to Fig. 1), dust storehouse 6 is connected by dust storehouse butterfly valve 10 with electromagnetism dust catcher 1.
Electromagnetism dust catcher 1 in the present embodiment is to realize like this, it comprises the electromagnet N and the electromagnet S (being labeled as respectively 4 and 5) that are oppositely arranged, electromagnet N and electromagnet S are separately fixed on magnetic conductive board 3, dust-catching board 2 is located between magnetic conductive board 3, and dust-catching board 2 is 45 ° or 135 ° of settings with horizontal sextant angle.Wherein, electromagnet N and electromagnet S are DC electromagnet, and after switching on power, magnetic pole is contrary.Dust-catching board can be galvanized iron sheet, and surface smoothness reaches 1 grade, and its two ends are connected with electromagnet S, electromagnet N respectively, after electromagnet switches on power, there is ferromagnetism, can catch mobile metallic dust, when after electromagnet power-off, the de-magnetic of dust-catching board 2, the dust of catching falls automatically.As a kind of preferred embodiment, some dust-catching boards are set to a row, are provided with at least 4 row's dust-catching boards between two magnetic conductive boards, and the two ends of every row's dust-catching board are crisscross arranged, 4 row's dust-catching board entirety undulates, every row's dust-catching board and horizontal sextant angle can be 45 ° or 135 ° of settings.
In addition, also comprise dress powder tank (not shown), the lower end of dust storehouse 6 is tightly connected by discharging plate valve 8 and dress powder tank, opens discharging plate valve 8, and the dust in dust storehouse 6 is emitted.Wherein, discharging plate valve and dust storehouse butterfly valve are closed type pneumatic control valve, in vacuum melting furnace vacuumizing phase and air-cooled stage, all in closed condition, prevent dust or body of heater gas leakage in suck-back dust storehouse.In this device, on dust storehouse 6, watch window 9 can also be set, watch window is thickening clear glass, its 2/3 place has upper limit scale, observe the dust quantity of collecting in storehouse from watch window 9, regularly open discharging plate valve 8 dust is emitted, guarantee to be no more than upper limit.
Embodiment 2
According to the dust collection method of a kind of vacuum melting furnace of the specific embodiment of the invention, comprise the steps:
Step 1, the electromagnetism dust catcher 1 (connecting pipe of part shown in figure is all installed in the connecting pipe between body of heater and the pumped vacuum systems of vacuum melting furnace and in the connecting pipe of body of heater and circulating air cooling system, and be labeled as 11), electromagnetism dust catcher 1 has some dust-catching boards 2, between adjacent dust-catching board 2, there is gap, and dust storehouse 6 is installed under each electromagnetism dust catcher 1, and dust storehouse 6 has dust storehouse butterfly valve 10;
Step 2, starts electromagnetism dust catcher 1 everywhere, in vacuum melting stove evacuation or air-cooled stage, dust in stove is caught by dust-catching board, and furnace gas passes through from the gap between dust-catching board;
Step 3, makes vacuum melting furnace in stopped status, and the 1 power-off demagnetization of electromagnetism dust catcher, and dust is slipped to the top of dust storehouse butterfly valve 10 from dust-catching board 2, open dust storehouse butterfly valve 10, and dust falls into dust storehouse 6.
Finally, the lower end of dust storehouse 6 is tightly connected by discharging plate valve 8 and dress powder tank, regularly the dust in dust storehouse is emitted.
In a word, the dust arrester of the vacuum melting furnace that the present embodiment provides and dust collection method can be made steel vacuum melting furnace volatile matter and the dust producing and effectively be collected, and have greatly improved furnace inner environment, have extended the service life of vavuum pump.The device of the required installation of the method, simple in structure, reliable and stable, dust collecting effect is obvious.
The aforementioned description to concrete exemplary of the present invention is in order to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Exemplary embodiment is selected and the object described is to explain certain principles of the present invention and practical application thereof, thereby made those skilled in the art can realize and utilize various exemplary of the present invention and various selection and change.Scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (9)
1. a dust collection method for vacuum melting furnace, is characterized in that, comprises the steps:
Step 1, in connecting pipe in connecting pipe between body of heater and the pumped vacuum systems of vacuum melting furnace and between described body of heater and circulating air cooling system, electromagnetism dust catcher is all installed, described electromagnetism dust catcher has some dust-catching boards, between adjacent dust-catching board, there is gap, and under each electromagnetism dust catcher, dust storehouse is installed, described dust storehouse has dust storehouse butterfly valve;
Step 2, starts electromagnetism dust catcher everywhere, in vacuum melting stove evacuation or air-cooled stage, dust in stove is caught by described dust-catching board, and furnace gas passes through from the gap between described dust-catching board;
Step 3, makes vacuum melting furnace in stopped status, and described electromagnetism dust catcher power-off demagnetization, and dust is slipped to the top of described dust storehouse butterfly valve from described dust-catching board, open described dust storehouse butterfly valve, and dust falls into described dust storehouse.
2. the dust collection method of vacuum melting furnace according to claim 1, is characterized in that, the lower end of described dust storehouse is tightly connected by discharging plate valve and dress powder tank.
3. a dust arrester for vacuum melting furnace, is characterized in that, comprising:
Electromagnetism dust catcher, it is arranged in the connecting pipe in the connecting pipe between body of heater and the pumped vacuum systems of vacuum melting furnace or between described body of heater and circulating air cooling system, described electromagnetism dust catcher has some dust-catching boards that are obliquely installed, and between adjacent dust-catching board, has gap;
Dust storehouse, it is infundibulate, described dust storehouse be arranged on each electromagnetism dust catcher under, described dust storehouse is connected by dust storehouse butterfly valve with described electromagnetism dust catcher.
4. the dust arrester of vacuum melting furnace according to claim 3, it is characterized in that, described electromagnetism dust catcher also comprises the electromagnet N and the electromagnet S that are oppositely arranged, described electromagnet N and described electromagnet S are separately fixed on magnetic conductive board, and the two ends of described dust-catching board are located at respectively on described magnetic conductive board.
5. the dust arrester of vacuum melting furnace according to claim 4, is characterized in that, some dust-catching boards are set to a row, and described dust-catching board is obliquely installed.
6. the dust arrester of vacuum melting furnace according to claim 5, is characterized in that, is provided with at least 4 row's dust-catching boards between two magnetic conductive boards, and the two ends of every row's dust-catching board are crisscross arranged.
7. the dust arrester of vacuum melting furnace according to claim 6, is characterized in that, described dust-catching board is galvanized iron sheet.
8. the dust arrester of vacuum melting furnace according to claim 7, is characterized in that, also comprises dress powder tank, and the lower end of described dust storehouse is tightly connected by discharging plate valve and described dress powder tank.
9. the dust arrester of vacuum melting furnace according to claim 8, is characterized in that, described discharging plate valve and described dust storehouse butterfly valve are closed type pneumatic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410306637.3A CN104174485A (en) | 2014-06-30 | 2014-06-30 | Dust removal method and dust removal device of vacuum melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410306637.3A CN104174485A (en) | 2014-06-30 | 2014-06-30 | Dust removal method and dust removal device of vacuum melting furnace |
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| Publication Number | Publication Date |
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| CN104174485A true CN104174485A (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410306637.3A Pending CN104174485A (en) | 2014-06-30 | 2014-06-30 | Dust removal method and dust removal device of vacuum melting furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106881196A (en) * | 2017-03-21 | 2017-06-23 | 中磁科技股份有限公司 | Double filtering system |
| CN108905465A (en) * | 2018-07-12 | 2018-11-30 | 文民杰 | A kind of ball blast room air cleaning exhaust system |
| CN114226242A (en) * | 2021-12-21 | 2022-03-25 | 江苏国朗机械制造有限公司 | Dry-process granulator with centralized dust fall collection and treatment functions |
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| JPS5753256A (en) * | 1980-08-11 | 1982-03-30 | Daido Steel Co Ltd | Magnetic separation method |
| CN2147901Y (en) * | 1993-01-20 | 1993-12-01 | 杨浚 | Electromagnetic duster |
| JP2003159672A (en) * | 2001-08-29 | 2003-06-03 | Masuda Clean Tech Co Ltd | Local exhaust type work table |
| CN1595036A (en) * | 2003-11-24 | 2005-03-16 | 深圳大学 | Vacuum smelting furnace |
| CN2719403Y (en) * | 2004-08-31 | 2005-08-24 | 南京凯盛水泥技术工程有限公司 | Combined dust collector |
| CN1765527A (en) * | 2005-10-17 | 2006-05-03 | 李学曾 | Separation technique of blast furnace ferrous fines |
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2014
- 2014-06-30 CN CN201410306637.3A patent/CN104174485A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5753256A (en) * | 1980-08-11 | 1982-03-30 | Daido Steel Co Ltd | Magnetic separation method |
| CN2147901Y (en) * | 1993-01-20 | 1993-12-01 | 杨浚 | Electromagnetic duster |
| JP2003159672A (en) * | 2001-08-29 | 2003-06-03 | Masuda Clean Tech Co Ltd | Local exhaust type work table |
| CN1595036A (en) * | 2003-11-24 | 2005-03-16 | 深圳大学 | Vacuum smelting furnace |
| CN2719403Y (en) * | 2004-08-31 | 2005-08-24 | 南京凯盛水泥技术工程有限公司 | Combined dust collector |
| CN1765527A (en) * | 2005-10-17 | 2006-05-03 | 李学曾 | Separation technique of blast furnace ferrous fines |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106881196A (en) * | 2017-03-21 | 2017-06-23 | 中磁科技股份有限公司 | Double filtering system |
| CN108905465A (en) * | 2018-07-12 | 2018-11-30 | 文民杰 | A kind of ball blast room air cleaning exhaust system |
| CN114226242A (en) * | 2021-12-21 | 2022-03-25 | 江苏国朗机械制造有限公司 | Dry-process granulator with centralized dust fall collection and treatment functions |
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Application publication date: 20141203 |