CN101905283A - Method and device for quickly removing dust and sand grains in investment casting pattern materials by cyclone separation - Google Patents
Method and device for quickly removing dust and sand grains in investment casting pattern materials by cyclone separation Download PDFInfo
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- CN101905283A CN101905283A CN 201010218388 CN201010218388A CN101905283A CN 101905283 A CN101905283 A CN 101905283A CN 201010218388 CN201010218388 CN 201010218388 CN 201010218388 A CN201010218388 A CN 201010218388A CN 101905283 A CN101905283 A CN 101905283A
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Abstract
The invention relates to a method for quickly removing dust and sand grains in investment casting pattern materials by cyclone separation, which comprises the following steps: placing pattern materials in a storage barrel, heating to 70-120 DEG C while stirring, using a feeding pipeline and a thermal insulation pump to feed the pattern materials to a cyclone separator to remove dust and sand grains in the pattern materials, wherein before removing the dust and sand grains in the pattern materials, the feeding pipeline, a pipeline filter, the thermal insulation pump and the cyclone separator are preheated to 70-120 DEG C by a heating system arranged between the storage barrel and the cyclone separator while the pattern materials are preheated; the feeding pressure to the cyclone separator is adjusted by adjusting the back flow of the thermal insulation pump, and the feeding pressure is controlled to be in a range of 0.1-0.6MPa; the separation temperature is in a range of 70-120 DEG C; and separated solid particles are discharged from a bottom flow port at the lower end of a cyclone tube, and after separation, the pattern materials are recycled through an overflow port at the upper part into a storage tank for later use. The invention avoids the influences of long-time high-temperature standing separation on the performance of the pattern materials. The invention has the advantages of high processing speed, low energy consumption and easy matching with pattern material dehydration technology.
Description
One, technical field
The present invention relates to a kind of eddy flow centrifugation and remove the dust in the investment casting mould materials and the method and the device of sand grains fast, solve existing mould material heating and leave standstill the problem that the processing time of taking off the slag method is long, energy consumption is high, efficient is low, equipment occupation space is big.
Two, background technology
In the precision-investment casting process of (claiming model casting again), molten mistake fusible pattern (dewaxing) is one of master operation.The method of dewaxing has multiple, burns lost-wax process, microwave lost-wax process, hot sand lost-wax process etc. as organic solvent method, hot water dewaxing's method, high steam lost-wax process, sudden strain of a muscle.Existing most widely used is the high steam lost-wax process, also be the main flow of current model casting process for dewaxing, have that quality of investment shell is good, wax material rate of recovery advantages of higher.No matter in the process that adopts which kind of process for dewaxing, all can sneak into dust and sand grains in the mould material.For the mould material being reclaimed and regeneration, these need be sneaked into the dust and the sand grains of wax material and remove.The method of at present these field trashes being separated is under 80-90 ℃ temperature, leaves standstill decontamination, and the time of leaving standstill is more than 12 hours.The treatment effeciency of this method is low, a plurality of leave standstill bucket leave standstill for a long time that not only occupation space is big, and waste energy, the utilization rate of wax material is low simultaneously.
Three, summary of the invention
The purpose of this invention is to provide a kind of eddy flow centrifugation and remove the dust in the investment casting mould materials and the method for sand grains fast, solve problems such as the treatment effeciency that above-mentioned prior art exists is low, energy consumption height.
Technical scheme of the present invention realizes in the following manner:
A kind of rotational flow separation removes the dust in the investment casting mould materials and the method for sand grains fast, it is characterized in that the mould material is placed storage barrel, be heated to 70-120 ℃ while stirring, be transported to the dust and the sand grains that remove in the cyclone separator of forming by oil bath case and cyclone pipe in the mould material with conveyance conduit and thermal insulation pump; In the heated mould material, utilize between storage barrel and the cyclone separator before dust in removing the mould material and the sand grains and heat
System preheats 70-120 ℃ of dust and sand grains that removes again in the mould material with conveyance conduit, piping filter, thermal insulation pump and cyclone separator; Regulate when regulating the backflow of thermal insulation pump to the discharge pressure of cyclone separator, discharge pressure is controlled at the 0.1-0.6Mpa interval; Separation temperature is in 70-120 ℃ of interval; Isolated solid particle is discharged by the underflow opening of the lower end of cyclone pipe, and the mould material is recovered in the storage tank standby by the overfall on top after separating.
A kind of rotational flow separation removes the dust in the investment casting mould materials and the device of sand grains fast, mainly form by storage barrel, filter, thermal insulation pump, conveyance conduit, Pressure gauge, cyclone pipe, conduction oil, circulating pump, circulation line, oil bath case and electrothermal tube, it is characterized in that storage barrel by conveyance conduit link to each other with filter, filter links to each other with thermal insulation pump, thermal insulation pump links with many serial or parallel connections or the cyclone pipe that combines of connection in series-parallel in being located at the oil bath case; Conduction oil circulation cover that is provided with in the periphery of conveyance conduit, storage barrel and filter and circulating pump and oil bath case are formed circulation line, pump inlet links to each other with the oil bath case, circulating-pump outlet links to each other with the conduction oil circulation line, serial or parallel connection between thermal insulation pump muff, filter and the storage barrel conduction oil circulation cover, between storage barrel conduction oil circulation cover and the circulating pump by being connected communicating pipe, on the cyclone pipe overfall, be provided with Pressure gauge or pressure sensor, in the oil bath case, be provided with electrothermal tube and temperature sensor.
Effect of the present invention: the invention provides a kind of eddy flow centrifugation and remove the dust in the investment casting mould materials and the method for sand grains fast, the method that adopts centrifugation accelerates to separate, can in the short period of time the impurity in the mould material be separated, avoid long-time quiescence in high temperature to separate mould material Effect on Performance.This processing method overall structure is simply compact, and it is little to take up room, and processing speed is fast, and energy consumption is low, and Yi Yumo material processed process or miscellaneous equipment are supporting.
Four, description of drawings:
Accompanying drawing is a structural representation of the present invention
1-storage barrel 2-filter 3-thermal insulation pump 4-conveyance conduit 5-Pressure gauge or pressure sensor 6-oil bath case 7-conduction oil 8,11-cyclone pipe 9-overflow outlet 10-overfall 12-underflow opening 13-oil bath case outlet 14-circulating pump 15-communicating pipe among the figure
Five, the specific embodiment:
A kind of rotational flow separation removes the dust in the investment casting mould materials and the method for sand grains fast, it is characterized in that the mould material is placed storage barrel, be heated to 70-120 ℃ while stirring, be transported to the dust and the sand grains that remove in the cyclone separator of forming by oil bath case and cyclone pipe in the mould material with conveyance conduit and thermal insulation pump; Utilize in the heated mould material before dust in removing the mould material and the sand grains that heating system preheats 70-120 ℃ of dust and sand grains that removes again in the mould material with conveyance conduit, piping filter, thermal insulation pump and cyclone separator between storage barrel and the cyclone separator; Regulate when regulating the backflow of thermal insulation pump to the discharge pressure of cyclone separator, discharge pressure is controlled at the 0.1-0.6Mpa interval; Separation temperature is in 70-120 ℃ of interval; Isolated solid particle is discharged by the underflow opening of the lower end of cyclone pipe, and the mould material is recovered in the storage tank standby by the overfall on top after separating.
A kind of rotational flow separation removes the dust in the investment casting mould materials and the device of sand grains fast, mainly form by storage barrel 1 filter 2, thermal insulation pump 3, conveyance conduit 4, Pressure gauge 5, cyclone pipe 11, conduction oil 7, circulating pump 14, circulation line, oil bath case 6 and electrothermal tube, it is characterized in that storage barrel by conveyance conduit link to each other with filter, filter links to each other with thermal insulation pump, thermal insulation pump links with many serial or parallel connections or the cyclone pipe that combines of connection in series-parallel in being located at the oil bath case; Conduction oil circulation cover that is provided with in the periphery of conveyance conduit, storage barrel and filter and circulating pump and oil bath case are formed circulation line, pump inlet links to each other with the oil bath case, circulating-pump outlet links to each other with the conduction oil circulation line, serial or parallel connection between thermal insulation pump muff, filter and the storage barrel conduction oil circulation cover, between storage barrel conduction oil circulation cover and the circulating pump by being connected communicating pipe, on the cyclone pipe overfall, be provided with Pressure gauge or pressure sensor, in the oil bath case, be provided with electrothermal tube and temperature sensor
With reference to accompanying drawing, separation process is two cyclone separator series connection, cyclone pipe 8 and 11 is installed in the thermostatical oil bath cabinet 6, be added with conduction oil 7 in the case, adopt the electrothermal tube heating and by temperature control system control conduction oil temperature (heating rod and control system are not drawn), the conduction oil in the oil bath case links to each other with circulating pump 14 by outlet 13, and passes through circulation line 15 (among the figure shown in the dotted line), turn back in the oil bath case, constitute heating system transfer pipeline and equipment.
At first with heat-conducting oil heating, and the unlatching conduction oil circulatory system, mould material in the heating agitator 1 is heated to 70-120 ℃, the pump head of conveyance conduit 4, piping filter 2, thermal insulation pump 3 and the cyclone separator 8 and 11 that is placed in the oil bath case 6 are heated to 70-120 ℃, to melt the mould material carries to cyclone separator with thermal insulation pump 3, separator 8 and 11 feeding pressure show that by Pressure gauge 5 feeding pressure is regulated by the capacity of returns of regulating thermal insulation pump 3, and feeding pressure is controlled at 0.1-0.6MPa; The solid impurity that rotational flow separation goes out is discharged by the underflow opening 12 of cyclone lower end, and the mould material after separating is discharged by the overfall 10 on top; Be discharged in the storage barrel standby through the mould material after the two-stage separation by outlet 9.
Claims (2)
1. a rotational flow separation removes the dust in the investment casting mould materials and the method for sand grains fast, it is characterized in that the mould material is placed storage barrel, be heated to 70-120 ℃ while stirring, be transported to dust and the sand grains that removes in the cyclone separator that the cyclone pipe be made up of oil bath case and cyclone pipe forms in the mould material with conveyance conduit and thermal insulation pump; In the heated mould material, utilize to pay before dust in removing the mould material and the sand grains and deposit bucket and deposit that heating system preheats 70-120 ℃ of dust and sand grains that removes again in the mould material with conveyance conduit, piping filter, guarantor's pump and cyclone separator between bucket and the cyclone separator; Regulate when regulating the backflow of thermal insulation pump to the discharge pressure of cyclone separator, discharge pressure is controlled at the 0.1-0.6Mpa interval; Separation temperature is in 70-120 ℃ of interval; Isolated solid particle is discharged by the head piece of the lower end of cyclone pipe, and the mould material is recovered in the storage tank standby by the overfall on top after separating.
2. a rotational flow separation removes the dust in the investment casting mould materials and the device of sand grains fast, mainly form by storage barrel, filter, thermal insulation pump, conveyance conduit, Pressure gauge, cyclone pipe, conduction oil, circulating pump, circulation line, oil bath case and electrothermal tube, it is characterized in that storage barrel by conveyance conduit link to each other with filter, filter links to each other with thermal insulation pump, thermal insulation pump links with many serial or parallel connections or the cyclone pipe that combines of connection in series-parallel in being located at the oil bath case; Periphery at conveyance conduit, storage barrel and filter is provided with conduction oil circulation sleeve pipe, pump inlet links to each other with the oil bath case, circulating-pump outlet links to each other with conduction oil circulation sleeve pipe, conduction oil circulation sleeve pipe and thermal insulation pump muff filter and storage barrel conduction oil circulation cover serial or parallel connection, between storage barrel conduction oil circulation cover and the circulating pump by being connected communicating pipe, on the cyclone pipe overfall, be provided with Pressure gauge or pressure sensor, in the oil bath case, be provided with electrothermal tube and temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102183884A CN101905283B (en) | 2010-06-24 | 2010-06-24 | Method and device for quickly removing dust and sand grains in investment casting pattern materials by cyclone separation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102183884A CN101905283B (en) | 2010-06-24 | 2010-06-24 | Method and device for quickly removing dust and sand grains in investment casting pattern materials by cyclone separation |
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| CN101905283A true CN101905283A (en) | 2010-12-08 |
| CN101905283B CN101905283B (en) | 2012-05-02 |
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| CN2010102183884A Expired - Fee Related CN101905283B (en) | 2010-06-24 | 2010-06-24 | Method and device for quickly removing dust and sand grains in investment casting pattern materials by cyclone separation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816934A (en) * | 2012-09-10 | 2012-12-12 | 曲险峰 | Method and device for centrifugal filtering of solid impurities from investment casting pattern material |
| CN102825212A (en) * | 2012-09-10 | 2012-12-19 | 曲险峰 | Method and apparatus for removing moisture and solid impurities in pattern material for investment casting by way of coalescence under pressure |
| CN106391331A (en) * | 2016-11-07 | 2017-02-15 | 品第信息科技（上海）有限公司 | Hot melting material purification method and device |
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| CN2085687U (en) * | 1990-10-09 | 1991-10-02 | 华中理工大学 | Centrifugal self-circular sand reclaiming machine |
| JPH0739992A (en) * | 1993-07-30 | 1995-02-10 | Daido Steel Co Ltd | Method for regenerating waste wax of casting pattern |
| CN1316454A (en) * | 2000-04-05 | 2001-10-10 | 郑碧春 | Process for reclaiming and regenerating foamed plastics |
| US20020038695A1 (en) * | 1999-09-14 | 2002-04-04 | Kawsaki Steel Techno-Research Corporation | Method of recovering and refining filler from a lost wax composition |
| KR20030039225A (en) * | 2001-11-12 | 2003-05-17 | 조순희 | Wax manufacturing and regenerating apparatus for precision casting |
| CN200999228Y (en) * | 2007-01-11 | 2008-01-02 | 宁波大发化纤有限公司 | Separating device for regenerated polymer low molecule foreign matter and special vacuum separation tower |
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2010
- 2010-06-24 CN CN2010102183884A patent/CN101905283B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085687U (en) * | 1990-10-09 | 1991-10-02 | 华中理工大学 | Centrifugal self-circular sand reclaiming machine |
| JPH0739992A (en) * | 1993-07-30 | 1995-02-10 | Daido Steel Co Ltd | Method for regenerating waste wax of casting pattern |
| US20020038695A1 (en) * | 1999-09-14 | 2002-04-04 | Kawsaki Steel Techno-Research Corporation | Method of recovering and refining filler from a lost wax composition |
| CN1316454A (en) * | 2000-04-05 | 2001-10-10 | 郑碧春 | Process for reclaiming and regenerating foamed plastics |
| KR20030039225A (en) * | 2001-11-12 | 2003-05-17 | 조순희 | Wax manufacturing and regenerating apparatus for precision casting |
| CN200999228Y (en) * | 2007-01-11 | 2008-01-02 | 宁波大发化纤有限公司 | Separating device for regenerated polymer low molecule foreign matter and special vacuum separation tower |
Non-Patent Citations (2)
| Title |
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| 《特种铸造及有色合金》 19990420 王明法等 中温模料回收装置的改进 , 第02期 2 * |
| 《特种铸造及有色合金》 20050215 陈冰 回收-再生模料(System Waxes)生产规模迅速扩大__国外精铸技术进展述评(1) , 第01期 2 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816934A (en) * | 2012-09-10 | 2012-12-12 | 曲险峰 | Method and device for centrifugal filtering of solid impurities from investment casting pattern material |
| CN102825212A (en) * | 2012-09-10 | 2012-12-19 | 曲险峰 | Method and apparatus for removing moisture and solid impurities in pattern material for investment casting by way of coalescence under pressure |
| CN106391331A (en) * | 2016-11-07 | 2017-02-15 | 品第信息科技（上海）有限公司 | Hot melting material purification method and device |
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| Publication number | Publication date |
|---|---|
| CN101905283B (en) | 2012-05-02 |
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Granted publication date: 20120502 Termination date: 20120624 |