CN101717866B - Pneumatic deslagging device for high temperature material cluster in magnesium metal reduction jar - Google Patents
Pneumatic deslagging device for high temperature material cluster in magnesium metal reduction jar Download PDFInfo
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- CN101717866B CN101717866B CN2009102275775A CN200910227577A CN101717866B CN 101717866 B CN101717866 B CN 101717866B CN 2009102275775 A CN2009102275775 A CN 2009102275775A CN 200910227577 A CN200910227577 A CN 200910227577A CN 101717866 B CN101717866 B CN 101717866B
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Abstract
The invention discloses a pneumatic deslagging device for high temperature material cluster in magnesium metal reduction jar. The invention comprises a reduction jar, a pneumatic deslagging blow torch, a blow torch power unit and a slag separating box; the pneumatic deslagging blow torch is sealed and sheathed in the reduction jar, the tail end of the pneumatic deslagging blow torch is connected to the blow torch power unit to ensure that the pneumatic deslagging blow torch to perform centering motion horizontally, or up and down, or left and right, the blown-out slag enters into the slag separating box via a deslagging pipeline to be separated, the wind inlet of the pneumatic deslagging blow torch is connected with a wind source, and the wind outlet of the slag separating box is connected with a draught fan. The invention creatively uses dual power combination of front-pulling and back-pushing in the deslagging and slag-conveying system, the dynamic wind pressure decreases to below 20kPa from 400kPa, thus thoroughly resolving explosion hazard and being very safe; meanwhile, the system works under negative pressure state for most of the time, thus thoroughly solving the problem of flying dust in front of the furnace in manual deslagging mode or mechanical deslagging mode, and being environment-friendly and hygiene.
Description
Technical field:
The present invention relates to the production and the smelting of light metal, particularly the used big L/D ratio reduction jar interior high temperature slag charge of MAGNESIUM METAL pyrotic smelting solid phase reduction technology blowing out and collecting.
Background technology:
In the light metal field of smelting, extensively adopt solid phase reduction reaction production technique, reduction process is the core process of whole production flow process, its energy consumption, cost and recruitment all account for the over half of product corresponding index.This class reduction process is generally all made pelletizing feed with raw material, carries out the solid phase reduction reaction under high temperature, vacuum state, and reaction vessel is generally big L/D ratio reduction jar.Production of magnesium by pidgeonprocess technology is exactly the most representative example.Owing to be under high temperature, high vacuum, to carry out solid state reaction, this technology can't be carried out the serialization flow process and be produced, can only adopt the interruption production technique, carry out repeatedly: the cyclical operation of the magnesium of feeding → vacuumize → heat → reduction reaction → uncap → go out → slag tap → feed according to certain reduction cycle.In the aforesaid operations process, tapping process workload maximum, Working environment are the most abominable.At present the domestic and international mode of slagging tap that adopts mostly is and manually slags tap or machinery is slagged tap.Manually slag tap and only use the high temperature pelletizing feed after simple tools (long handle spades, long handle creeper) will be reduced in the reduction jar, to shovel out or claw.Since the instrument length overall more than 4.5m, jar in temperature more than 1200 ℃, the very fast meeting of instrument long handle is roasting soft by high temperature, the instrument of having to frequently change, not only labour intensity greatly, work under bad environment, and working efficiency is very low.Excessive just because of labour intensity, the workman can't operate continuously, needs continuous Suspend Job and has a rest in short-term, thereby prolonged service working time, has tied up and output directly relevant reduction reaction time, i.e. effective production time.And the machinery employed slag removal machine of slagging tap mainly contains spiral, chain-plate type, reciprocal (shovel) formula, reciprocal (shovel) several forms such as formula that combine with the aspiration groove.Have some insurmountable problems because the singularity of production technique, machinery are skimmed: (1) jar interior temperature is more than 1200 ℃, and the physical strength of metal parts, rigidity can reduce greatly, so the machinery equipment of skimming is difficult to works better; (2) reduction jar meeting gross distortion after using for some time under high temperature, the high vacuum condition, tank body external pressure unstability, cross section become ellipse, the tank body middle part is seriously sagging, the tank body medullary ray no longer is a straight line, cause the spiral, carrier bar of mechanical slag removal machine, back and forth shovel etc. can't normally be taken off material, even can't stretch in the jar, the machinery equipment of skimming is difficult to works better; Can come in contact with tank body unavoidably when (3) machinery is skimmed equipment work, usually reduction vessel is caused physical abuse, this damage is for the reduction vessel of working under high temperature, high vacuum, and consequence is very serious, can shorten the life-span of reduction vessel greatly, even directly cause it to scrap; (4) the machinery equipment of skimming is uncovered operation, can cause unavoidably that dust flies upward, heat radiation, and the operation field environment is abominable, and is very harmful to workers'health.Although being the patent documentation of ZL200420016594.7, ZL200420016597.0, ZL200820231123.6, ZL200820133981.7, the patent No. all taked various effective measure to improve, but still can't solve working efficiency low, production environment is polluted root problems such as very big, this also is that state such as west and Japan closed national method for smelting magnesium by hot enterprise one after another in recent years, its factory is transferred to the reason of developing country.Publication number is that the Chinese patent of CN201334512Y discloses a kind of pneumatic flushing mucking machine, employing is blown into the mode of high pressure gas and slags tap in the reduction jar, this gas mode of slagging tap is attempted the early existing people of MAGNESIUM METAL production industry, but abandon because of following technical problem can't solve eventually: (1) at high temperature, metal strength can reduce rapidly, the high pressure gas of this moment very easily cause the blast of container, pipeline, and the report of this type of accident was abroad once arranged, and people are hung back to this danger; (2) since reduction use jar under hot conditions after for some time can gross distortion, the tank body middle part is seriously sagging, the tank body medullary ray no longer is a straight line, cause a jar mouthful plane to tilt, the jar mouth can't guarantee sealing when gas was skimmed, consequent environmental pollution is slagged tap much larger than machinery, thereby can't works better; (3) gas is slagged tap and the winding-up pipe need be stretched in the reduction jar, equipment claimed moves horizontally with the straight line, the VTOL (vertical take off and landing) that adapt to reduction furnace and arranges with multilayer about adapting to the reduction jar simultaneously, equipment moving mechanism complexity, need when mobile working, guarantee simultaneously pressure air supply, blow out the conveying of material, sealing problem can't solve; (4) after a large amount of air of use blew out the high temperature pelletizing feed, the separation of high temperature pelletizing feed, transportation problem were difficult to solve, and causing gas to be slagged tap can't realize.
Summary of the invention:
Technical problem to be solved by this invention provides a kind of high temperature material cluster in magnesium metal reduction jar Pneumatic deslagging device at above deficiency exactly.This device defeated slag power of creatively gas being slagged tap changes " pulling in front and others push behind " double dynamical combination into, and the power wind pressure is reduced to below the 20kPa from about 400kPa, has thoroughly dissolved explosion hazard; Adopt big flange sphere centering technology, can when tank body jar mouth flange inclination certain angle, still guarantee self-centering, good seal; Cyclone type separates separation and the transportation problem that the slag case has successfully solved the high temperature pelletizing feed.
The technical solution used in the present invention is as follows:
A kind of high temperature material cluster in magnesium metal reduction jar Pneumatic deslagging device, include the reduction jar, Pneumatic deslagging winding-up pipe, winding-up is managed actuating unit and is separated the slag case, a reduction jar inner seal sleeve is connected to Pneumatic deslagging winding-up pipe, Pneumatic deslagging winding-up pipe tail end is connected on the winding-up pipe actuating unit, guaranteed that Pneumatic deslagging winding-up pipe is in level, up and down, about centering move, the slag charge that blows out enters by the pipeline of slagging tap and separates the separation of slag case, the blast inlet of Pneumatic deslagging winding-up pipe is connected with wind regime, the air outlet that separates the slag case is connected with induced draft fan, the defeated slag power of so creatively gas being slagged tap changes " pulling in front and others push behind " double dynamical combination into, reduce the power air pressure greatly, the power wind pressure is reduced to below the 20kPa from about 400kPa, has thoroughly dissolved the explosion hazard of reduction jar.
Be provided with big flange seal coupling device between reduction jar and the winding-up pipe actuating unit, big flange seal coupling device mainly is made of jar mouth flange, head flange, spherical joint and the tube of slagging tap, the jar mouth of reduction jar is provided with a jar mouthful flange, the head end of winding-up pipe actuating unit is provided with the head flange, the reduction jar closely is connected by jar mouth flange, head flange with winding-up pipe actuating unit head, jar mouthful flange connects the tube of slagging tap by spherical joint, slag tap tube by slag tap pipeline with separate the slag case and be connected, the tube middle part cross-under Pneumatic deslagging winding-up of slagging tap is managed.The setting of big flange seal coupling device can tilt still to guarantee self-centering, good seal 2～5 ° the time at tank body jar mouth flange.
Spherical joint is made up of ball hub and bulb, and the connection section of ball hub and bulb is the ball face, and the ball hub is connected jar on mouthful flange, and bulb is connected with the tube of slagging tap, slag tap tin by slag tap pipeline with separate the slag case and be connected.
For guaranteeing in a plurality of drive units, multiple transmission system, under condition of high vacuum degree, can move flexibly simultaneously at space three-dimensional, can guarantee sealing simultaneously again, not leak, slag tap pipeline and the tube of slagging tap, the connector portions of separating the slag case are equipped with ball joint.
Separating the slag case mainly is made of casing, slag bucket, the casing top is provided with air outlet, air outlet is connected with induced draft fan, casing top is provided with slag inlet, slag inlet is connected with the pipeline of slagging tap by ball joint, and slag inlet is arranged on the tangent position of casing, and slag charge is fallen in the rotation of induced draft fan effect lower edge casing, and hot blast is discharged under the induced draft fan effect, and bottom half is provided with slag bucket.
Induced draft fan produces-5～-the air inducing pressure of 10KPa, make and separate slag case pressure inside and remain on about 0.02-0.05KPa, be beneficial to wind and separate with slag.
The beneficial effect that the present invention can reach is:
1, the present invention is creatively slagging tap, is failing in the slag system and used " pulling in front and others push behind " double dynamical combination, and the power wind pressure is reduced to below the 20kPa from about 400kPa, has thoroughly dissolved explosion hazard, and is as safe as a house; Simultaneously because system's major part is operated in negative pressure state, thoroughly solved manually slag tap, machinery is slagged tap mode stokehold dust from flying problem, environmentally-friendly sanitary.
2, the present invention is reliable, and jar Nei Wenduda is more than 1200 ℃ in reduction, manually skims, machinery is skimmed can't life-time service; Pneumatic deslagging has only the winding-up pipe to work under this temperature, because its inside has a large amount of air to cool off, the metal body top temperature can not surpass 400 ℃, thereby can steady in a long-term move, and this advantage is that machinery skims can't be comparable.
3, adaptability of the present invention is good, because Pneumatic deslagging winding-up pipe diameter is less, adopted big flange sphere centering technology simultaneously, thereby a reduction jar distortion is not more than limiting dimension scarfing cinder is not had influence, each is no more than a reduction jar mouthful flange certain limit to obliquity scarfing cinder is not had influence, and these also are the machinery insurmountable difficult problems of slagging tap.
4, the present invention is energy-saving and cost-reducing, has used the slag case of band tripping device that gas-solid is separated innovatively, and the high temperature waste residue can be concentrated rapidly, helps the waste residue UTILIZATION OF VESIDUAL HEAT IN, and part enterprise uses it for generation steam, and system balancing is had very big benefit.
5, the present invention can prolong reduction jar work-ing life, strength is slagged tap and has thoroughly been avoided machinery to skim to the damage of reduction jar, simultaneously the pelletizing feed of high-speed motion also has the cleaning jar inwall function that scabs, can effectively reduce the thermal resistance of reduction process, in energy-saving and cost-reducing, can also avoid the reduction jar overheated, increase the service life.
6, high efficiency of the present invention with regard to scarfing cinder, only needs one man operation, greatly reduces labour intensity, can reduce manpower in a large number, reduces labour cost; Simultaneously can also reduce subsidiary operation time, increase effective production time, the volume increase consumption reduction.
7, work of the present invention is flexible, uses a plurality of drive units, multiple transmission system, is equipped with wear-resistant steel pipe turning joint simultaneously under condition of high vacuum degree, can move flexibly at space three-dimensional, can guarantee sealing simultaneously again, does not leak.
Fig. 1 is annexation figure of the present invention
Description of drawings:
Fig. 2 is the structural representation of the big flange seal coupling device of the present invention.
Fig. 3 separates the structural front view of slag case for the present invention.
Fig. 4 separates the structure vertical view of slag case for the present invention.
The invention will be further described below in conjunction with accompanying drawing:
Embodiment:
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, this high temperature material cluster in magnesium metal reduction jar Pneumatic deslagging device, include reduction jar 10, Pneumatic deslagging winding-up pipe 20, winding-up is managed actuating unit 60 and is separated slag case 30, reduction jar 10 inner seal sleeves are connected to Pneumatic deslagging winding-up pipe 20, Pneumatic deslagging winding-up pipe 20 is connected on the winding-up pipe actuating unit 60, guaranteed that Pneumatic deslagging winding-up pipe 20 is in level, up and down, about centering move, the slag charge that blows out separates by separating slag case 30, the blast inlet 21 of Pneumatic deslagging winding-up pipe 20 is connected with wind regime 50, wind regime 50 adopts the roots blower air-supply, and the certain air quantity of maintenance 50L/M, the air outlet 34 that separates slag case 30 is connected with induced draft fan 40, the defeated slag power of so creatively gas being slagged tap changes " pulling in front and others push behind " double dynamical combination into, reduce the power air pressure greatly, the power wind pressure is reduced to 10-15kPa from about 400kPa, thoroughly dissolved explosion hazard.Be provided with big flange seal coupling device 80 between reduction jar 10 and the winding-up pipe actuating unit 60, big flange seal coupling device 80 is mainly by jar mouth flange 81, head flange 85, the spherical joint and the tube 84 of slagging tap constitute, the jar mouth of reduction jar 10 is provided with a jar mouthful flange 81, the head end of winding-up pipe actuating unit 60 is provided with head flange 85, reduction jar 10 is managed actuating unit 60 heads by a jar mouthful flange 81 with winding-up, head flange 85 closely connects, jar mouthful flange 81 connects the tube 84 of slagging tap by spherical joint, slag tap tube 84 by slag tap pipeline 70 with separate slag case 30 and be connected, the tube 84 middle part cross-under Pneumatic deslaggings winding-up of slagging tap manages 20.Spherical joint is made of ball hub 82 and bulb 83, the connection section of ball hub 82 and bulb 83 is the ball face, ball hub 82 is connected on jar mouthful flange 81, bulb 83 is connected with the tube 84 of slagging tap, slag tap tube 84 by slag tap pipeline 70 with separate slag case 30 and be connected, the pipeline 70 of slagging tap is equipped with ball joint 71 with the connector portions of slagging tap tube 84, separate slag case 30, and the setting of big flange seal coupling device 80 can still guarantee self-centering, good seal when 81 inclination 2-5 ° of tank body jar mouth flanges.Separating slag case 30 mainly is made of casing 31, slag bucket 33, casing 31 tops are provided with air outlet 34, air outlet 34 is connected with induced draft fan 40, has slag inlet 32 on the casing 31, slag inlet 32 is connected with the tube 84 of slagging tap by the pipeline 70 of slagging tap, and slag inlet 32 is arranged on the tangent position of casing 31, and slag charge is fallen in induced draft fan 40 effect lower edge spiral separation casing 31 rotations, and hot blast output under induced draft fan 40 effects, casing 31 bottoms are provided with slag bucket 33.Induced draft fan 40 produces-5～-the air inducing pressure of 10KPa, make and separate little negative pressure that slag case 30 pressure inside remain on 0.02～0.05KPa, be beneficial to gas solid separation.
During use, Pneumatic deslagging winding-up pipe 20 is under the driving of horizontal mobile mechanism, the reduction furnace arranged direction moves in the light rail upper edge, cooperate with hoisting appliance, head flange 85 is aimed at reduction jar jar mouthful flange 81, then head flange 85 is pressed on the reduction jar jar mouthful flange 81, do not leak to guarantee to utilize in the aerodynamic force tapping process at next step, evenly compress for guaranteeing still can guarantee to press after a reduction jar jar mouthful plane tilts, do not leak, used big flange sphere aligning gear 80 at this, can tilt still to guarantee self-centering 2 ° the time at tank body jar mouth flange.After confirming to compress, utilize the pipe propulsive mechanism of jetting that Pneumatic deslagging winding-up pipe 20 is progressively reached in the reduction jar 10.Meanwhile, in the blast inlet 21 of Pneumatic deslagging winding-up pipe 20, feed the low-pressure air of " promotion " effect, combine with " suction " effect of negative-pressure gas in the air outlet 34 that separates slag case 30, high temperature pelletizing feed in the reduction jar 10 is clawed, and pipeline 70 is sent into it in spiral separation casing 31 that separates slag case 30 through slagging tap.The pipeline 70 of slagging tap is equipped with wear-resistant steel pipe turning joint under condition of high vacuum degree, guarantee to move at equipment, can transmit the high temperature pelletizing feed during displacement, can guarantee sealing again.In separating slag case 30, high temperature material slag with enter bottom slag bucket 33 after hot gas separates, transport to the slag storehouse then and carry out waste heat recovery; The hot blast that sub-argument goes out can carry out factory comprehensive utilization, as oven dry shape coal, preboiler feedwater, sends into boiler as preheated air etc.
Claims (5)
1. high temperature material cluster in magnesium metal reduction jar Pneumatic deslagging device, include reduction jar, Pneumatic deslagging winding-up pipe, winding-up pipe actuating unit and separate the slag case, it is characterized in that: a reduction jar inner seal sleeve is connected to Pneumatic deslagging winding-up pipe, Pneumatic deslagging winding-up pipe tail end is connected on the winding-up pipe actuating unit, the slag charge that blows out enters by the pipeline of slagging tap and separates the separation of slag case, the blast inlet of Pneumatic deslagging winding-up pipe is connected with wind regime, and the air outlet that separates the slag case is connected with induced draft fan; Be provided with big flange seal coupling device between reduction jar and the winding-up pipe actuating unit, big flange seal coupling device mainly is made of jar mouth flange, head flange, spherical joint and the tube of slagging tap, the jar mouth of reduction jar is provided with a jar mouthful flange, the head end of winding-up pipe actuating unit is provided with the head flange, the reduction jar closely is connected by jar mouth flange, head flange with winding-up pipe actuating unit head, jar mouthful flange connects the tube of slagging tap by spherical joint, slag tap tube by slag tap pipeline with separate the slag case and be connected, the tube middle part cross-under Pneumatic deslagging winding-up of slagging tap is managed.
2. high temperature material cluster in magnesium metal reduction jar Pneumatic deslagging device as claimed in claim 1, it is characterized in that: spherical joint is made up of ball hub and bulb, the connection section of ball hub and bulb is the ball face, the ball hub is connected on jar mouthful flange, bulb is connected with the tube of slagging tap, slag tap tin by slag tap pipeline with separate the slag case and be connected.
3. high temperature material cluster in magnesium metal reduction jar Pneumatic deslagging device as claimed in claim 2 is characterized in that: the pipeline of slagging tap is equipped with ball joint with the connector portions of slagging tap tube, separate the slag case.
4. high temperature material cluster in magnesium metal reduction jar Pneumatic deslagging device as claimed in claim 3, it is characterized in that: separate the slag case and mainly constitute by casing, slag bucket, the casing top is provided with air outlet, air outlet is connected with induced draft fan, casing top is provided with slag inlet, slag inlet is connected with the pipeline of slagging tap by ball joint, and slag inlet is arranged on the tangent position of casing, and bottom half is provided with slag bucket.
5. as claim 1 or 2 or 3 or 4 described high temperature material cluster in magnesium metal reduction jar Pneumatic deslagging devices, it is characterized in that: induced draft fan produces-5～-the air inducing pressure of 10KPa, make the pressure that separates the slag case remain on 0.02-0.05KPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102275775A CN101717866B (en) | 2009-12-22 | 2009-12-22 | Pneumatic deslagging device for high temperature material cluster in magnesium metal reduction jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102275775A CN101717866B (en) | 2009-12-22 | 2009-12-22 | Pneumatic deslagging device for high temperature material cluster in magnesium metal reduction jar |
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| Publication Number | Publication Date |
|---|---|
| CN101717866A CN101717866A (en) | 2010-06-02 |
| CN101717866B true CN101717866B (en) | 2011-07-20 |
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| CN2009102275775A Expired - Fee Related CN101717866B (en) | 2009-12-22 | 2009-12-22 | Pneumatic deslagging device for high temperature material cluster in magnesium metal reduction jar |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564141B (en) * | 2012-02-29 | 2014-06-18 | 刘世泽 | Duplex cyclone pneumatic slag taker special for metallic magnesium |
| CN103966461A (en) * | 2013-01-25 | 2014-08-06 | 宁夏鹏程致远自动化技术有限公司 | Integrated furnace charge pellet pneumatic packing and reducing slag pneumatic raking machine for magnesium metal reduction tank |
| CN104561600A (en) * | 2013-10-12 | 2015-04-29 | 郑州大学 | Self-propelled automatic pneumatic mucking machine |
| CN104180667B (en) * | 2014-06-16 | 2016-03-16 | 宁夏太阳镁业有限公司 | Slag air separation |
| CN106955843B (en) * | 2017-05-27 | 2024-01-30 | 郑州大学 | System and method for washing balls in magnesium smelting charging stroke |
| CN107090550A (en) * | 2017-06-16 | 2017-08-25 | 郑州大学 | A kind of Smelting magnesium negative pressure slag-draining device and its method |
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2009
- 2009-12-22 CN CN2009102275775A patent/CN101717866B/en not_active Expired - Fee Related
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Granted publication date: 20110720 Termination date: 20191222 |