CN102816934A - Method and device for centrifugal filtering of solid impurities from investment casting pattern material - Google Patents
Method and device for centrifugal filtering of solid impurities from investment casting pattern material Download PDFInfo
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- CN102816934A CN102816934A CN201210330993XA CN201210330993A CN102816934A CN 102816934 A CN102816934 A CN 102816934A CN 201210330993X A CN201210330993X A CN 201210330993XA CN 201210330993 A CN201210330993 A CN 201210330993A CN 102816934 A CN102816934 A CN 102816934A
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Abstract
The invention discloses a method and a device for centrifugal filtering of solid impurities from an investment casting pattern material. The method includes placing a to-be-processed pattern material into a storage barrel, heating with stirring to a processing temperature, placing a lining filter bag into a centrifugal barrel with a hole-shaped barrel wall, and heating the centrifugal barrel, an openable heat insulating cover, a pipeline, valves, a pump head and the like to a treatment process temperature; and starting a high-speed motor to enable the centrifugal barrel to rotate stably, then opening an inlet control valve and an outlet control valve, starting a delivery pump, and delivering the preheated to-be-processed recovery pattern material to the centrifugal barrel for centrifugal filtering. The filtered pattern material is recovered for reservation after flowing out of from an outlet; and the lining filter bag blocked by a filtering hole can be replaced through shut down, cooling or opening of the openable heat insulating cover. According to the method and the device, influences of long time high-temperature standing deslagging on performances of the pattern material are avoided, and continuous operation is achieved. The method is high in processing speed, good in effect, low in energy consumption, small in occupying space by the device, and capable of being matched with dehydration treatment process of the pattern material.
Description
One, technical field
The invention belongs to the solid-liquid separation technique field; Especially refer to that a kind of centrifuging removes the method and the device of solid impurity in the investment casting mould materials; The slag that takes off that is applicable to different types of investment cast cerul mould material or resin basic mode material is handled, and solves the existing problem that the treatment time is long, energy consumption is high, efficient is low, equipment occupation space is big of taking off the slag treatment process.
Two, background technology
In investment casting process, molten dewax mould (dewaxing) is one of master operation.The method of dewaxing has multiple, burns wax fractionation process, microwave wax fractionation process, hot sand wax fractionation process etc. like organic solvent method, hot water dewaxing's method, HP steam wax fractionation process, sudden strain of a muscle.Existing most widely used is high pressure steam process, also be the main process for dewaxing of current investment cast, adopt this method to have that quality of investment shell is good, mould material recovery advantages of higher.But, no matter in adopting the process of which kind of dewaxing treatment method, all can sneak into about about 0.5% various solid impurities in the mould material, particle, dust and the red stone etc. that come off like the shell surface.To the mould material be recycled, must these impurity of sneaking in the mould material be removed.The method that the domestic present overwhelming majority's essence casting factory carries out separating treatment to these impurity of sneaking into the mould material is to leave standstill takes off slag.For these inclusiones are separated to greatest extent, need leave standstill under 90 ℃ the temperature more than 12 hours usually; Because at high temperature be detained for a long time, the easy deterioration by oxidation of mould material makes that mould material viscosity and fragility increase, darken, mis-behave, consequently finally can't normally use.Simultaneously, the existing processing efficiency that takes off the slag treatment process that leaves standstill is low, and treatment time long (treatment scheme needs 15-30 hour), and power consumption, equipment occupation space is big.
Three, summary of the invention
The objective of the invention is to solve above-mentioned mould material reclaims and takes off that the processing efficiency that the slag technology exists is low, energy consumption is high and problem such as mould material degradation; A kind of method of utilizing centrifuging to remove solid impurity in the investment casting mould materials is provided, and its mould material that can realize energy-conservation, efficient, continuity and high stability takes off the slag process.
Technical scheme of the present invention realizes in the following manner:
A kind of centrifuging removes the method for solid impurity in the investment casting mould materials, it is characterized in that: pending mould material is placed storage barrel, be stirred and heated to treatment temp; The liner filter bag is put well in the bucket wall is poroid centrifugal staving, but centrifugal staving folding insulation cover, pipeline, valve, pump head etc. are heated to the treatment process temperature; After the startup high-speed electric expreess locomotive makes centrifugal staving spin stabilization; Open feed control valve and discharging valve, start transferpump, will be transported in the centrifugal staving through the pending recovery mould material of preheating; Carry out centrifuging, the mould material after the filtration flows out the back by discharge port and reclaims subsequent use.
A kind of centrifuging removes the device of solid impurity in the investment casting mould materials, but comprises heating circulation system, high-speed electric expreess locomotive, thermal oil inlet, barrel-shaped muff, opening for feed folding insulation cover, thermal oil outlet, centrifugal staving, liner filter bag, discharge port composition.It is characterized in that: the bucket wall is to be provided with the liner filter bag in the poroid centrifugal staving, drives centrifugal staving and the rotation of liner filter bag by the high-speed electric expreess locomotive of bottom, but and by barrel-shaped muff and the encirclement of folding insulation cover, be centrifugal staving heat tracing; Pending mould material is got into by the opening for feed that is arranged on centrifugal staving top, handles the discharge port outflow of back mould material by the inner bottom part that is arranged on barrel-shaped muff.
Further characteristic of the present invention is: be uniformly distributed with the installation electromagnetic heater but the heat tracing of barrel-shaped muff and folding insulation cover can be employed in the outside; Or but barrel-shaped muff and folding insulation cover be arranged to sandwich structure, through in interlayer, feeding the heating agent heat tracing.
Further characteristic of the present invention is: but the folding insulation cover is two semicircular bodies, can open to be incorporated in middle boxing out, and is convenient for changing the insertion in filter bag and pending mould material conveying tube road.
Further characteristic of the present invention is: barrel-shaped muff bottom is an annular shape container, filters back mould material in order to hold.
Centrifuging of the present invention removes the method and the device of solid impurity in the investment casting mould materials, not only is applicable to the filtration treatment of investment casting mould materials, also applicable to other needs at high temperature the slag that takes off of filtering Chemicals handle.
Compared with present technology the present invention has following advantage and beneficial effect:
(1) the invention provides method and the device that a kind of centrifuging removes solid impurity in the investment casting mould materials, can in the short period of time the solid impurity in the mould material be removed, avoided long-time quiescence in high temperature to take off slag mould material Effect on Performance.
(2) the liner filter bag can adopt micropore or ultramicropore filter cloth to process, and can remove to leave standstill and take off the molecule that the slag method can not be removed, and helps improving mould material quality.
(3) this treatment process can realize continuous operation, the one-piece construction compact, and it is little to take up room, and processing speed is fast, and energy consumption is low, Yi Yumo material dehydration or other coordinative composition of equipments.
Four, description of drawings
Fig. 1 the present invention crosses the structural representation that centrifugal filter removes solid impurity device in the investment casting mould materials
Among the figure: but 1, high-speed electric expreess locomotive 2, thermal oil inlet 3, barrel-shaped muff 4, opening for feed 5 folding insulation covers 6, thermal oil outlet 7, centrifugal staving 8, liner filter bag 9, discharge port
Five, embodiment
Below in conjunction with accompanying drawing, the present invention is done to specify further.
A kind of centrifuging removes the method for solid impurity in the investment casting mould materials, it is characterized in that: will reclaim the mould material and place storage barrel, and be stirred and heated to treatment temp; The liner filter bag is put well in the bucket wall is poroid centrifugal staving, centrifugal staving, pipeline (comprising valve, pump head etc.) are heated to the treatment process temperature; After the startup high-speed electric expreess locomotive makes centrifugal staving spin stabilization; Open feed control valve and discharging valve, start transferpump, will be transported in the centrifugal staving through the pending recovery mould material of preheating; Carry out centrifuging, the mould material after the filtration flows out the back by discharge port and reclaims subsequent use.
As shown in Figure 1; It is the device that a kind of centrifuging of the present invention removes solid impurity in the investment casting mould materials; But comprise high-speed electric expreess locomotive 1, thermal oil inlet 2, barrel-shaped muff 3, opening for feed 4 folding insulation covers 5, thermal oil outlet 6, centrifugal staving 7, liner filter bag 8, discharge port 9; It is in the poroid centrifugal staving 7 that liner filter bag 8 is positioned over barrel wall; Drive centrifugal staving 7 and 8 rotations of liner filter bag by the high-speed electric expreess locomotive of bottom 1, but and surround by barrel-shaped muff 3 and folding insulation cover 5, be centrifugal staving 7 heat tracings; Pending mould material is got into by the opening for feed that is arranged on centrifugal staving 7 tops 4, handles discharge port 9 outflows of back mould material by the inner bottom part that is arranged on barrel-shaped muff; From heating circulation system (not drawing among the figure) but thermal oil get in barrel-shaped muff 3 and the folding insulation cover 5 by thermal oil inlet 2, loop back heating circulation system by thermal oil outlet 6.
But the heat tracing of barrel-shaped muff among Fig. 13 and folding insulation cover 5 can be employed in the outside and be uniformly distributed with the installation electromagnetic heater, but or barrel-shaped muff 3 is arranged to sandwich structure with folding insulation cover 5, through in interlayer, feeding the heating agent heat tracing.
But the folding insulation cover 5 among Fig. 1 is two semicircular bodies, can open to be incorporated in middle boxing out, and is convenient for changing liner filter bag 8 and pending mould material conveying tube road, i.e. the insertion of opening for feed 4.
The drive of motor axis hole edge of barrel-shaped muff 3 inner bottom parts among Fig. 1 upwards is provided with ring-shaped baffle, and itself and barrel-shaped muff 3 inwalls form an annular shape container in the bottom, filters back mould material in order to hold.
Centrifuging shown in Figure 1 removes the device of solid impurity in the investment casting mould materials, and its concrete operating process is: earlier the pending mould material in the storage barrel is heated to 70-120 ℃; Liner filter bag 8, is put well on the bucket wall in being poroid centrifugal staving 7; But the surface that centrifugal staving 7 folding insulation covers 5, pipeline, valve, pump head or the like are contacted with the mould material preheats 70-120 ℃; After startup high-speed electric expreess locomotive 1 makes centrifugal staving 7 spin stabilizations; Open the feed control valve of opening for feed 4 and the discharging valve of discharge port 9, start transferpump, will be transported in the centrifugal staving 7 through the pending recovery mould material of preheating; Carry out centrifuging, the mould material after the filtration flows out the back by discharge port 9 and reclaims subsequent use.Longer when working time, when liner filter bag 8 lip-deep sediments will filter empty the obstruction, can shut down, lower the temperature, but open folding insulation cover 5, the liner filter bag 8 that more renews.Point for measuring temperature is set in the centrifugal staving 7 and is 70-120 ℃ through the temperature that heat tracing system (not drawing among the figure) keeps treating processes.
The above; Embodiment only is that preferred implementation of the present invention is described; Be not that scope of the present invention is limited; Under the prerequisite of the spirit that does not break away from the present invention's technology, various distortion and improvement that this area engineering technical personnel make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (6)
1. a centrifuging removes the method for solid impurity in the investment casting mould materials; It is characterized in that: pending mould material is placed storage barrel; Be stirred and heated to treatment temp; The liner filter bag is put well in the bucket wall is poroid centrifugal staving, but then centrifugal staving folding insulation cover, pipeline, valve, pump head etc. are heated to the treatment process temperature; After the startup high-speed electric expreess locomotive makes centrifugal staving spin stabilization, open feed control valve and discharging valve, start transferpump, will be defeated through the pending recovery mould material of preheating.Deliver in the centrifugal staving, carry out centrifuging, the mould material after the filtration flows out the back by discharge port and reclaims subsequent use.
2. a centrifuging removes the device of solid impurity in the investment casting mould materials, but comprises heating circulation system, high-speed electric expreess locomotive, thermal oil inlet, barrel-shaped muff, opening for feed folding insulation cover, thermal oil outlet, centrifugal staving, liner filter bag, discharge port composition.It is characterized in that: the bucket wall is to be provided with the liner filter bag in the poroid centrifugal staving, drives centrifugal staving and the rotation of liner filter bag by the high-speed electric expreess locomotive of bottom, but and by barrel-shaped muff and the encirclement of folding insulation cover, be centrifugal staving heat tracing; Pending mould material is got into by the opening for feed that is arranged on centrifugal staving top, handles the discharge port outflow of back mould material by the inner bottom part that is arranged on barrel-shaped muff.
3. centrifuging according to claim 1 removes the method for solid impurity in the investment casting mould materials, it is characterized in that: the described fusing point and its viscosity decision under differing temps that takes off the residues processing technique temperature according to the mould material.
4. a kind of centrifuging according to claim 2 removes the device of solid impurity in the investment casting mould materials; It is characterized in that: be uniformly distributed with the installation electromagnetic heater but the heat tracing of barrel-shaped muff and folding insulation cover can be employed in the outside; Or but barrel-shaped muff and folding insulation cover be arranged to sandwich structure, through in interlayer, feeding the heating agent heat tracing.
5. a kind of centrifuging according to claim 2 removes the device of solid impurity in the investment casting mould materials; It is characterized in that: but the folding insulation cover is two semicircular bodies; Can open and be incorporated in middle boxing out, be convenient for changing the insertion in filter bag and pending mould material conveying tube road.
6. centrifugal a kind of centrifuging according to claim 2 removes the device of solid impurity in the investment casting mould materials, it is characterized in that: barrel-shaped muff bottom is an annular shape container, filters back mould material in order to hold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210330993XA CN102816934A (en) | 2012-09-10 | 2012-09-10 | Method and device for centrifugal filtering of solid impurities from investment casting pattern material |
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| CN201210330993XA CN102816934A (en) | 2012-09-10 | 2012-09-10 | Method and device for centrifugal filtering of solid impurities from investment casting pattern material |
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| CN102816934A true CN102816934A (en) | 2012-12-12 |
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| CN201210330993XA Pending CN102816934A (en) | 2012-09-10 | 2012-09-10 | Method and device for centrifugal filtering of solid impurities from investment casting pattern material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447459A (en) * | 2013-03-22 | 2013-12-18 | 曲险峰 | Method and device for filtering and removing solid impurities in die materials of investment casting |
| CN103862005A (en) * | 2014-04-08 | 2014-06-18 | 哈尔滨工业大学 | Device for manufacturing metal matrix composite or semisolid slurry and using method thereof |
| CN106392007A (en) * | 2016-06-12 | 2017-02-15 | 蔡耀名 | Ceramic shell dewaxing method and device |
| 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 |
| RU2656194C1 (en) * | 2017-06-22 | 2018-05-31 | Акционерное общество "ОДК-Авиадвигатель" | Melted model composition cleaning method and installation |
| CN111644565A (en) * | 2020-06-29 | 2020-09-11 | 马鞍山市万鑫铸造有限公司 | Wax block making equipment in investment casting process |
Citations (3)
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| EP0110651A1 (en) * | 1982-11-22 | 1984-06-13 | Exxon Research And Engineering Company | Process for separating wax from mixture of wax and oil or wax, oil and solvent |
| JP2001333747A (en) * | 2000-05-26 | 2001-12-04 | House Foods Corp | Method for preparing liquid food and rotary centrifugal separator used therefor |
| CN101905283A (en) * | 2010-06-24 | 2010-12-08 | 中国石油大学(华东) | Method and device for quickly removing dust and sand grains in investment casting pattern materials by cyclone separation |
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2012
- 2012-09-10 CN CN201210330993XA patent/CN102816934A/en active Pending
Patent Citations (3)
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|---|---|---|---|---|
| EP0110651A1 (en) * | 1982-11-22 | 1984-06-13 | Exxon Research And Engineering Company | Process for separating wax from mixture of wax and oil or wax, oil and solvent |
| JP2001333747A (en) * | 2000-05-26 | 2001-12-04 | House Foods Corp | Method for preparing liquid food and rotary centrifugal separator used therefor |
| CN101905283A (en) * | 2010-06-24 | 2010-12-08 | 中国石油大学(华东) | Method and device for quickly removing dust and sand grains in investment casting pattern materials by cyclone separation |
Non-Patent Citations (1)
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447459A (en) * | 2013-03-22 | 2013-12-18 | 曲险峰 | Method and device for filtering and removing solid impurities in die materials of investment casting |
| CN103447459B (en) * | 2013-03-22 | 2015-12-09 | 曲险峰 | The method of solid impurity and device in a kind of filtering and removing investment casting mould materials |
| CN103862005A (en) * | 2014-04-08 | 2014-06-18 | 哈尔滨工业大学 | Device for manufacturing metal matrix composite or semisolid slurry and using method thereof |
| CN103862005B (en) * | 2014-04-08 | 2016-05-04 | 哈尔滨工业大学 | A kind of device and using method thereof of preparing metal-base composites or semi solid slurry |
| CN106392007A (en) * | 2016-06-12 | 2017-02-15 | 蔡耀名 | Ceramic shell dewaxing method and device |
| CN106392007B (en) * | 2016-06-12 | 2021-06-29 | 蔡耀名 | Method and device for dewaxing ceramic shell |
| 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 |
| RU2656194C1 (en) * | 2017-06-22 | 2018-05-31 | Акционерное общество "ОДК-Авиадвигатель" | Melted model composition cleaning method and installation |
| CN111644565A (en) * | 2020-06-29 | 2020-09-11 | 马鞍山市万鑫铸造有限公司 | Wax block making equipment in investment casting process |
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Application publication date: 20121212 |