CN108339933A - A kind of device and method for eliminating artificial sand apparent pore - Google Patents
A kind of device and method for eliminating artificial sand apparent pore Download PDFInfo
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- CN108339933A CN108339933A CN201810438576.4A CN201810438576A CN108339933A CN 108339933 A CN108339933 A CN 108339933A CN 201810438576 A CN201810438576 A CN 201810438576A CN 108339933 A CN108339933 A CN 108339933A
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- Prior art keywords
- impregnant
- control valve
- infiltration
- artificial sand
- tank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of devices for eliminating artificial sand apparent pore, the device includes infiltration jar and impregnant tank, and the infiltration jar and impregnant tank forms a circulatory system by pipeline, and pumped vacuum systems, compression system and air bleeding valve are provided on the infiltration jar.The pumped vacuum systems includes third control valve, vacuum tank and vacuum pump, and first pressure gauge is provided on the vacuum tank.The compression system includes air source, the first pressure reducing valve, second pressure gauge and the 4th control valve.Also disclose a kind of method for eliminating artificial sand apparent pore.Vacuum infiltration is combined by the method for the artificial sand apparent pore of the elimination with Pressure Infiltration, it is ensured that the effect that artificial sand shows gas is eliminated in infiltration, improves Production Practice of Casting Technologies.
Description
Technical field
The present invention relates to casting technology field, specifically a kind of device and method for eliminating artificial sand apparent pore.
Background technology
Sand casting is the major processes of castings production, and the casting produced by sand casting process accounts for casting total yield
80% or more of amount.Sand is the aggregate that casting mold and fuse are formed in sand casting, is important sand casting Modeling Material,
Its physical and chemical properties determine its Production Practice of Casting Technologies, affect the quality of casting.
Roughing sand used in casting industry sand casting is mainly quartz sand, but since its thermal expansivity is big, is aoxidized in metal
The lower thermo-chemical stability of object effect is poor, and casting is also easy to produce the casting flaws such as scab, vein, rough surface, and therefore, quartz sand is not
Ideal casting Modeling Material.In order to meet the requirement for producing high-end casting, sometimes have to adopt in foundry production
Quartz sand is replaced to carry out moulding or coremaking with special sands such as zircon sand, chromite sand, forsterite sands.Special sand shortage of resources,
It is expensive, it is difficult to it is a large amount of to use, and there are radiological safety hidden danger for zircon sand, and there are particle shapes for chromite sand, forsterite sand
It is bad, the problems such as percentage of damage is high.
In order to crack the problem that casting model powder is brought to Foundry Production, artificial casting sand comes into being.But with artificial sand
Extensive application, founder author finder, which makes apparent pore existing for sand, influences its Production Practice of Casting Technologies, eliminates the aobvious of artificial sand
Stomata has great importance for the Production Practice of Casting Technologies of the artificial sand of raising and engineering application value.
Invention content
In view of the above-mentioned problems, the present invention provides a kind of device and method for eliminating artificial sand apparent pore, the elimination is artificial
Vacuum infiltration is combined by the method for sand apparent pore with Pressure Infiltration, it is ensured that the effect of artificial sand apparent pore is eliminated in infiltration, is carried
Its high Production Practice of Casting Technologies.
The technical scheme adopted by the invention to solve the technical problem is that：
A kind of device for eliminating artificial sand apparent pore, including infiltration jar and impregnant tank, and the infiltration jar and infiltration
Agent tank forms a circulatory system by pipeline, and pumped vacuum systems, compression system and air bleeding valve are provided on the infiltration jar；
The pumped vacuum systems includes third control valve, vacuum tank and vacuum pump, and is provided on the vacuum tank
One pressure gauge；
The compression system includes air source, the first pressure reducing valve, second pressure gauge and the 4th control valve.
Further, the liquid back pipe road between the impregnant tank and infiltration jar is provided with the first control valve, the leaching
It is provided with impregnant circulating pump and the second control valve in inlet pipe between penetration enhancer tank and infiltration jar, position in the infiltration jar
Impregnant exit is provided with strainer.
Further, the strainer is set to the top of the bottom end cover of infiltration jar, and the liquid back pipe road passes through lower end
Lid is connected with infiltration jar.
Further, the front end of the inlet pipe is provided with filter.
Further, it is provided with check-valves in the inlet pipe.
Further, upper spacer and lower clapboard, and the upper spacer and lower clapboard are provided in the impregnant tank
Make the S-type flowing of impregnant in the impregnant tank.
Further, the third control valve front end is provided with air filter on the pipeline of the pumped vacuum systems.
Further, the rear end on the pipeline of the pumped vacuum systems positioned at the vacuum pump is provided with steam-water separator.
Further, pressurization bye-pass has been arranged in parallel on the pipeline of the compression system, on the pressurization bye-pass
It is provided with the second pressure reducing valve, third pressure gauge and the 5th control valve.
A method of artificial sand apparent pore is eliminated, is included the following steps,
The first step adjusts the outlet pressure of the first pressure reducing valve and the second pressure reducing valve；
The sand that need to be handled, closed infiltration jar are added into infiltration jar for second step；
Third walks, and starts vacuum pump, and open third control valve, is vacuumized to the infiltration jar for being packed into artificial sand, makes first
The registration of pressure gauge maintains 0.1~3000Pa, pressurize 5min~25min；
4th step closes third control valve and vacuum pump, starts the second control valve and impregnant delivery pump, into infiltration jar
Impregnant is inputted, so that impregnant was not had artificial sand 10mm or more, the second control valve is closed after required impregnant height to be achieved
With impregnant delivery pump；
5th step opens air source and the 4th control valve, compressed air, and pressurize 5min~25min is passed through into infiltration jar；
6th step closes the 4th control valve, opens air bleeding valve, the row of closing when the pressure in infiltration jar is reduced to atmospheric pressure
Air valve；
7th step opens the first control valve and the 5th control valve, compressed air is passed through into infiltration jar, until in infiltration jar
Impregnant be all discharged into impregnant tank, be then shut off the 5th control valve and the first control valve；
8th step opens air bleeding valve, when infiltration pressure inside the tank is reduced to atmospheric pressure, opens bottom end cover and falls artificial sand
Go out, is then shut off bottom end cover；
9th step, to infiltration, treated that artificial sand cleans, drying.
The beneficial effects of the invention are as follows：
1. vacuum infiltration is the minimum gas made by using the mode vacuumized in artificial sand discharge apparent pore, to make
Impregnant is infiltrated up in apparent pore, and Pressure Infiltration is pressed into impregnant by way of pressurization in the apparent pore of artificial sand,
Vacuum infiltration is combined by the present apparatus and method with Pressure Infiltration, it is ensured that the effect that artificial sand shows gas is eliminated in infiltration.
2. by the way that air filter is arranged at the air flow inlet end of pumped vacuum systems, dust is effectively prevented to vacuum system tape
The adverse effect come.
3. the method for using air pressure dehydration when dischargeing the impregnant in infiltration jar remains after can effectively removing infiltration
In the impregnant of sand grain surface.
4. by the way that upper spacer and lower clapboard are arranged in impregnant tank, make the S-type stream of the impregnant flowed back to from infiltration jar
It is dynamic, so that the mud point that impregnant is brought into from sand settles down, keep the cleaning of impregnant.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
In figure：1- steam-water separators, 2- vacuum pumps, 3- vacuum tanks, 4- first pressure gauges, 5- air filters, 6- third controls
Valve processed, 7- inlet pipes, 8- upper end covers, 9- infiltration jars, 10- air bleeding valves, the 4th control valves of 11-, 12- second pressure gauges, 13-
One pressure reducing valve, 14- air sources, the 5th control valves of 15-, 16- third pressure gauges, the second pressure reducing valves of 17-, 18- bottom end covers, 19- return liquid
Pipeline, the first control valves of 20-, 21- filters, 22- check-valves, 23- impregnant fluid reservoirs, 24- lower clapboards, 25- upper spacers,
26- impregnant delivery pumps, the second control valves of 27-.
Specific implementation mode
As shown in Figure 1, a kind of device for eliminating artificial sand apparent pore includes infiltration jar 9 and impregnant tank 23, and it is described
Infiltration jar 9 and impregnant tank 23 form an impregnant circulatory system by pipeline.It is provided with and vacuumizes on the infiltration jar 9
System and compression system.
As shown in Figure 1, the infiltration jar 9 includes tank body, the upper end of the tank body is provided with upper end cover 8, the tank body
Lower end be provided with bottom end cover 18, the liquid level gauge for detecting impregnant liquid level is provided in the tank body.
The liquid return hole and liquid outlet of the impregnant tank 23 pass through liquid back pipe road 19 and inlet pipe 7 and the leaching respectively
Tank 9 is oozed to be connected.The first control valve 20 for controlling 19 break-make of liquid back pipe road is provided on the liquid back pipe road 19.It is described
Inlet pipe 7 on be provided with impregnant circulating pump and the second control valve 27 for controlling 7 break-make of inlet pipe.The leaching
Ooze in tank 9 be provided with positioned at impregnant exit only allow impregnant by strainer.
As a kind of specific implementation mode, the strainer described in the present embodiment is set to the top of the bottom end cover 18, institute
The liquid back pipe road 19 stated is connected by bottom end cover 18 with the infiltration jar 9.
Further, in order to avoid the impurity in impregnant is come back to by inlet pipe 7 in infiltration jar 9, such as Fig. 1 institutes
Show, the front end of the inlet pipe 7 is provided with (using the direction of impregnant flowing as rear) for being filtered to impregnant
Filter 21.
Further, the impregnant in order to prevent in infiltration jar 9 is flowed back by inlet pipe 7, in the inlet pipe 7
It is provided with check-valves 22.
Further, as shown in Figure 1, positioned at the liquid return hole of the impregnant tank 23 and going out liquid in the impregnant tank 23
It is provided with upper spacer 25 and lower clapboard 24 between mouthful, and the upper spacer 25 and lower clapboard 24 makes in the impregnant tank 23
The S-type flowing of impregnant.As a kind of specific implementation mode, the liquid return hole of impregnant tank described in the present embodiment 23 is set to institute
The left side of 23 upper surface of impregnant tank is stated, the liquid outlet of the impregnant tank 23 is set to the right side of 23 upper surface of impregnant tank
Side, and the filter 21 extends to the bottom of the impregnant tank 23 by inlet pipe 7.The upper spacer 25 is arranged
It in the upper surface of the impregnant tank 23, and is extended downwardly from upper surface, the lower end of the upper spacer 25 is hanging.Under described every
Plate 24 is located at the right side of the upper spacer 25, is set to the lower face of the impregnant tank 23, and is upwardly extended from lower face, institute
The upper end for stating lower clapboard 24 is hanging.
As shown in Figure 1, the pumped vacuum systems includes third control valve 6, vacuum tank 3 successively along the flow direction of air-flow
With vacuum pump 2, the first pressure gauge 4 for detecting vacuum degree is provided on the vacuum tank 3.
Further, in order to avoid the adverse effect that dust brings vacuum system, on the pipeline of the pumped vacuum systems
Positioned at 6 front end of the third control valve air filter 5 is provided with (using the flow direction of air-flow as rear).As a kind of specific reality
Mode is applied, the air filter 5 described in the present embodiment uses strainer.
Further, the rear end on the pipeline of the pumped vacuum systems positioned at the vacuum pump 2 is provided with steam-water separator
1。
Herein, the air filter 21 and steam-water separator 1 are the prior art, and details are not described herein.
The compression system includes air source 14, the first pressure reducing valve 13, second pressure gauge successively along the flow direction of air-flow
12 and the 4th control valve 11.
Further, as shown in Figure 1, being arranged in parallel pressurization bye-pass on the pipeline of the compression system, described adds
The flow direction of pressure bye-pass upper edge air-flow is disposed with the second pressure reducing valve 17, third pressure gauge 16 and the 5th control valve 15.
The main reason for being arranged in this way is, when carrying out Pressure Infiltration and removing impregnant, the pressure applied into infiltration jar 9 is different
, if only with single main forcing pipe road, the tune again to the progress of the first pressure reducing valve 13 is needed during actual use
Section is unfavorable for realizing the automation control of equipment.
It is provided with air bleeding valve 10 on the infiltration jar 9, as a kind of specific implementation mode, the row described in the present embodiment
Air valve 10 is set to the pipeline of the compression system, and positioned at the rear end of the 4th control valve 11 (direction flowed with air-flow
For rear).
A method of artificial sand apparent pore is eliminated, is included the following steps：
The first step, the outlet pressure for adjusting the first pressure reducing valve 13 are 0.5MPa~0.8MPa, adjust the second pressure reducing valve 17
Outlet pressure is 0.1MPa~0.5MPa；
Second step opens upper end cover 8 and the sand that need to be handled is added into infiltration jar 9, stops when sand reaches required material position
Only plus sand, upper end cover 8 is closed；
Third walks, and starts vacuum pump 2, and opens third control valve 6, is vacuumized to the infiltration jar 9 for being packed into artificial sand, makes the
The registration of one pressure gauge 4 maintains 0.1~3000Pa, pressurize 5min~25min；
4th step closes third control valve 6 and vacuum pump 2, the second control valve 27 and impregnant delivery pump 26 is opened, to leaching
It oozes in tank 9 and inputs impregnant, impregnant is made not have artificial sand 10mm or more, reach after required impregnant height and close the second control
Valve 27 and impregnant delivery pump 26；
5th step opens air source 14 and the 4th control valve 11, is passed through compressed air into infiltration jar 9, and pressurize 5min~
25min；
6th step closes the 4th control valve 11, opens air bleeding valve 10, is closed when the pressure in infiltration jar is reduced to atmospheric pressure
Close air bleeding valve 10；
7th step opens the first control valve 20 and the 5th control valve 15, compressed air is passed through into infiltration jar 9, until leaching
It oozes the impregnant in tank 9 to be all discharged into impregnant tank 23, is then shut off the 5th control valve 15 and the first control valve 20；
8th step opens air bleeding valve 10, and when pressure is reduced to atmospheric pressure in infiltration jar 9, opening bottom end cover 18 will be artificial
Sand is poured out, and bottom end cover 18 is then shut off；
9th step, to infiltration, treated that artificial sand cleans, drying.
Claims (10)
1. a kind of device for eliminating artificial sand apparent pore, it is characterised in that：Including infiltration jar and impregnant tank, and the infiltration
Tank and impregnant tank form a circulatory system by pipeline, and pumped vacuum systems, compression system are provided on the infiltration jar
And air bleeding valve；
The pumped vacuum systems includes third control valve, vacuum tank and vacuum pump, and the first pressure is provided on the vacuum tank
Power table；
The compression system includes air source, the first pressure reducing valve, second pressure gauge and the 4th control valve.
2. a kind of device for eliminating artificial sand apparent pore according to claim 1, it is characterised in that：The impregnant tank and
Liquid back pipe road between infiltration jar is provided with the first control valve, is set in the inlet pipe between the impregnant tank and infiltration jar
It is equipped with impregnant circulating pump and the second control valve, the infiltration jar is interior to be provided with strainer positioned at impregnant exit.
3. a kind of device for eliminating artificial sand apparent pore according to claim 2, it is characterised in that：The strainer setting
In the top of the bottom end cover of infiltration jar, the liquid back pipe road is connected by bottom end cover with infiltration jar.
4. a kind of device for eliminating artificial sand apparent pore according to claim 2, it is characterised in that：The inlet pipe
Front end is provided with filter.
5. a kind of device for eliminating artificial sand apparent pore according to claim 2, it is characterised in that：The inlet pipe
On be provided with check-valves.
6. a kind of device for eliminating artificial sand apparent pore according to claim 1, it is characterised in that：The impregnant tank
It is inside provided with upper spacer and lower clapboard, and the upper spacer and lower clapboard makes the S-type stream of impregnant in the impregnant tank
It is dynamic.
7. a kind of device for eliminating artificial sand apparent pore according to claim 1, it is characterised in that：The pumped vacuum systems
Pipeline on the third control valve front end is provided with air filter.
8. a kind of device for eliminating artificial sand apparent pore according to claim 1, it is characterised in that：The pumped vacuum systems
Pipeline on be located at the vacuum pump rear end be provided with steam-water separator.
9. a kind of device for eliminating artificial sand apparent pore according to claim 1, it is characterised in that：The compression system
It has been arranged in parallel pressurization bye-pass on pipeline, the second pressure reducing valve, third pressure gauge and are provided on the pressurization bye-pass
Five control valves.
10. a kind of method for eliminating artificial sand apparent pore, it is characterised in that：Include the following steps,
The first step adjusts the outlet pressure of the first pressure reducing valve and the second pressure reducing valve；
The sand that need to be handled, closed infiltration jar are added into infiltration jar for second step；
Third walks, and starts vacuum pump, and open third control valve, is vacuumized to the infiltration jar for being packed into artificial sand, makes first pressure
The registration of table maintains 0.1~3000Pa, pressurize 5min~25min；
4th step closes third control valve and vacuum pump, starts the second control valve and impregnant delivery pump, is inputted into infiltration jar
Impregnant makes impregnant not have artificial sand 10mm or more, the second control valve and leaching is closed after required impregnant height to be achieved
Penetration enhancer delivery pump；
5th step opens air source and the 4th control valve, compressed air, and pressurize 5min~25min is passed through into infiltration jar；
6th step closes the 4th control valve, opens air bleeding valve, and exhaust is closed when the pressure in infiltration jar is reduced to atmospheric pressure
Valve；
7th step opens the first control valve and the 5th control valve, compressed air is passed through into infiltration jar, until the leaching in infiltration jar
Penetration enhancer is all discharged into impregnant tank, is then shut off the 5th control valve and the first control valve；
8th step opens air bleeding valve, when infiltration pressure inside the tank is reduced to atmospheric pressure, opens bottom end cover and pours out artificial sand, so
After close bottom end cover；
9th step, to infiltration, treated that artificial sand cleans, drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438576.4A CN108339933A (en) | 2018-05-09 | 2018-05-09 | A kind of device and method for eliminating artificial sand apparent pore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438576.4A CN108339933A (en) | 2018-05-09 | 2018-05-09 | A kind of device and method for eliminating artificial sand apparent pore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108339933A true CN108339933A (en) | 2018-07-31 |
Family
ID=62955535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810438576.4A Withdrawn CN108339933A (en) | 2018-05-09 | 2018-05-09 | A kind of device and method for eliminating artificial sand apparent pore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108339933A (en) |
-
2018
- 2018-05-09 CN CN201810438576.4A patent/CN108339933A/en not_active Withdrawn
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190425 Address after: 256216 Mingji Town Economic Development Zone, Zouping County, Binzhou City, Shandong Province Applicant after: Jingang New Materials Co., Ltd. Address before: 255311 East Suli Village, Wangcun Town, Zhoucun District, Zibo City, Shandong Province Applicant before: SHANDONG JINPU NEW MATERIAL CO., LTD. |
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| TA01 | Transfer of patent application right | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180731 |
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| WW01 | Invention patent application withdrawn after publication |