CN205032733U - Negative pressure deposition apparatus - Google Patents
Negative pressure deposition apparatus Download PDFInfo
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- CN205032733U CN205032733U CN201520796576.3U CN201520796576U CN205032733U CN 205032733 U CN205032733 U CN 205032733U CN 201520796576 U CN201520796576 U CN 201520796576U CN 205032733 U CN205032733 U CN 205032733U
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- chamber
- negative pressure
- porous material
- separation chamber
- mixing chamber
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Abstract
The utility model discloses a negative pressure deposition apparatus, including the inside base that is hollow structure, base internally mounted has the vacuum pump, is provided with the separation chamber on the base, and separation chamber upper end intercommunication has the deposition chamber, is provided with the mixing chamber on the deposition chamber, be provided with the fan in the mixing chamber, the mixing chamber upper end is provided with air cleaner, the lower extreme and the vacuum pump of separation chamber are linked together, be provided with the filter screen in the separation chamber, the lower extreme of separation chamber is connected with high efficiency filter, be provided with powder feeder and differential pressure sensor on the base, be provided with the anchor clamps that are used for fixed porous material work piece in the deposition chamber. The utility model discloses use easy and simple to handlely, safe and reliable and raw powder are recoverable in work, and machining efficiency is high, can be simple and convenient, quick and the preparation that has a porous material of gradient structure of the multiple shape of high -quality completion, size.
Description
Technical field
The utility model belongs to porous material preparing technical field, is specifically related to a kind of negative pressure precipitation equipment.
Background technology
Traditional powder metallurgy porous material is symmetrical structure, mainly comprise tubulose and chip component, the multihole device of this symmetrical structure mostly adopts thicker powder to sinter after isostatic cool pressing, extruding or mould pressing method are shaped and forms, although filtration flux is larger, but filtering accuracy is lower, the demand of the industries such as filtration and chemical industry cannot be met.Compared with symmetrical multihole device, the porous material advantage of gradient-structure be in fluid≤isolated by filtration of 2 μm of submicron particles, under identical filtering accuracy, the separative efficiency of gradient porous material is 5 ~ 10 times of Conventional porous material separative efficiency, the wide market prospects that made it show.
Chinese scholars to have prepared the tiny and microporous barrier that filtering accuracy is higher in one deck aperture by methods such as wet spray, sol-gel and centrifugal depositions on the surface of symmetrical structure supporter, rete powder size used is generally 0.5 μm ~ 10 μm.Patent ZL200910219591 has invented a kind of centrifugal film coating apparatus, powder slurries is utilized to make metal dust be deposited on porous metals inside pipe wall under the influence of centrifugal force, then sintering obtains the inwall membrane material with gradient-structure, patent US2008/0081007A1 utilizes powder wet coating techniques to prepare metal outer wall film, obtains good effect.But above method all needs the powder slurries first preparing organic matter interpolation, rete deposition is realized by method that is centrifugal or spraying, then the porous material with gradient-structure is obtained by specific sintering process, but organic matter often can not remove completely after sintering, and a large amount of dust pollution can be formed in preparation process, can serious harm be produced to environment and operator.For porous material, comprise ceramic base and Metal Substrate two kinds, purposes main is at present for filtration & separation industry, work condition environment is complicated and changeable, organic residual corrosion resistance and the mechanical performance that can affect porous material, prior art urgent need is a kind of can realize being easy to prepare to have good gradient-structure and depositing device easy to use.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of negative pressure precipitation equipment is provided, this device uses easy and simple to handle, safe and reliable and powder stock is recyclable, working (machining) efficiency is high, can easy, the quick and high-quality preparation with the porous material of gradient-structure completing various shape, size.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of negative pressure precipitation equipment, comprise the inner base for hollow structure, it is characterized in that: described chassis interior is provided with vavuum pump, described base is provided with separation chamber, upper end, described separation chamber is communicated with settling chamber, upper end, described settling chamber is provided with the mixing chamber for mixing powder stock to be deposited and air, described mixing chamber inside is provided with fan, described mixing chamber upper end is provided with air cleaner, the lower end of described separation chamber is connected with vavuum pump by high efficiency particulate air filter, screen pack is provided with in described separation chamber, described base is provided with for providing the powder feeder of powder stock to be deposited and the differential pressure pickup for measuring upper and lower two ends, settling chamber pressure reduction in mixing chamber, the fixture for fixing porous material workpiece is detachably installed in described settling chamber.
Above-mentioned a kind of negative pressure precipitation equipment, is characterized in that: described fixture is made up of the left intermediate plate be arranged on described settling chamber both sides inwall and right clamping piece.
Above-mentioned a kind of negative pressure precipitation equipment, is characterized in that: the pipeline between described separation chamber and vavuum pump is provided with gas flowmeter.
Above-mentioned a kind of negative pressure precipitation equipment, is characterized in that: described base is provided with backstay, described backstay is provided with the fixed bar for installing described mixing chamber and air cleaner.
Above-mentioned a kind of negative pressure precipitation equipment, is characterized in that: the meal outlet place of described powder feeder is connected with bell-shaped nozzle.
Above-mentioned a kind of negative pressure precipitation equipment, is characterized in that: the quantity of described fan is 2.
The utility model compared with prior art has the following advantages:
1, the utility model uses easy and simple to handle, safe and reliable and powder stock is recyclable, and working (machining) efficiency is high, can easy, the quick and high-quality preparation with the porous material of gradient-structure completing various shape, size.
2, the utility model structure is simple, reasonable in design and mounting arrangements facilitates, its operation principle be utilize suction function by powder stock by pneumatic convey to porous material surface of the work, pressure reduction is produced in processed porous material workpiece both sides, powder stock is made to form " filter cake " at porous material surface of the work by the effect of pressure reduction, controlling gas flow rate makes powder stock constantly be deposited on porous material workpiece, along with the carrying out of deposition process, " filter cake " continues to thicken, thus forms film layer structure at porous material surface of the work.
3, the utility model is applicable to the porous material with gradient-structure preparing various material, comprise ceramic base porous material and metal-based porous material, and cross-sectional diameter can be deposited on the outer wall of tubular porous material work piece or inwall and all be about 10mm ~ 110mm, thickness is about the rete of 0.5 μm ~ 100 μm, 5mm ~ 110mm is about at sheet-like porous material surface deposition cross-sectional diameter, thickness is about the rete of 0.5 μm ~ 1000 μm, applied widely.
4, without the need to adding any auxiliary agent in powder stock when the utility model uses; can not impact the serviceability of porous material; and the utility model is arranged at screen pack in separator and efficient cyclone can reclaim the device security that downstream protected by the powder stock entering separation chamber simultaneously; high to the rate of recovery of powder stock, any harm can not be produced to operating environment and operator.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the first working state schematic representation of the utility model.
Fig. 3 is the utility model the second working state schematic representation.
Fig. 4 is the third working state schematic representation of the utility model.
Description of reference numerals:
1-base; 2-vavuum pump; 3-settling chamber;
4-mixing chamber; 5-air cleaner; 6-powder feeder;
7-differential pressure pickup; 8-porous material workpiece; 9-1-left intermediate plate;
9-2-right clamping piece; 10-separation chamber; 11-screen pack;
12-high efficiency particulate air filter; 13-gas flowmeter; 14-backstay;
15-fixed bar; 16-bell-shaped nozzle; 17-fan;
18-rete.
Detailed description of the invention
As shown in Figure 1, the negative pressure precipitation equipment of the present embodiment comprises the inner base 1 for hollow structure, described base 1 inside is provided with vavuum pump 2, described base 1 is provided with separation chamber 10, upper end, described separation chamber 10 is communicated with settling chamber 3, upper end, described settling chamber 3 is provided with the mixing chamber 4 for mixing powder stock to be deposited and air, described mixing chamber 4 inside is provided with fan 17, described mixing chamber 4 upper end is provided with air cleaner 5, the lower end of described separation chamber 10 is connected with vavuum pump 2 by high efficiency particulate air filter 12, screen pack 11 is provided with in described separation chamber 10, described base 1 is provided with for providing the powder feeder 6 of powder stock 16 to be deposited and the differential pressure pickup 7 for measuring settling chamber about 3 two ends pressure reduction in mixing chamber 4, the fixture for fixing porous material workpiece 8 is detachably installed in described settling chamber 3.
In the present embodiment, described fixture is made up of the left intermediate plate 9-1 be arranged on described settling chamber 3 both sides inwall and right clamping piece 9-2.
In the present embodiment, the pipeline between described separation chamber 10 and vavuum pump 2 is provided with gas flowmeter 13, for monitoring in real time and being convenient to regulate the gas flow on pipeline.
In the present embodiment, described base 1 is provided with backstay 14, described backstay 14 is provided with the fixed bar 15 for installing described mixing chamber 4 and air cleaner 5, is conducive to the stable operation of device entirety.
In the present embodiment, the meal outlet place of described powder feeder 6 is connected with bell-shaped nozzle 16.
In the present embodiment, the quantity of described fan 17 is preferably 2, is conducive to realizing fully mixing of powder stock and air.
During use, when described porous material workpiece 8 is tubular workpiece, and need on this tubular workpiece outer wall during deposited powder raw material, as shown in Figure 2, adopt left intermediate plate 9-1 and right clamping piece 9-2 that bottom, settling chamber 3 is fixed in one end of the porous material workpiece 8 of tubulose, then the other end of the porous material workpiece 8 of tubulose is closed, the outer wall of porous material workpiece 8 is connected with mixing chamber 4, the inwall of porous material workpiece 8 is connected with vavuum pump 2, then start vavuum pump 2 and provide stable negative-pressure air-flow in settling chamber 3, gas flowmeter 13 is for monitoring the mass flow of air in pipeline, whether differential pressure pickup 7 satisfies the demand for the pressure reduction detecting two ends, settling chamber about 3, preferred employing compressed air is as the power source of powder feeder 6, powder stock is delivered to mixing chamber 4 with the form of dusty gas inner, it is inner that air enters mixing chamber 4 through air cleaner 5, starting fan 17 makes powder stock to be deposited and the air after filtering be fully mixed to suitable concn, under negative pressure and Action of Gravity Field, powder stock to enter in settling chamber 3 and is attached on porous material workpiece 8 outer wall, because porous material workpiece 8 both sides produce larger pressure reduction, powder stock is made to form rete 18 gradually on porous material workpiece 8 outer wall.
When described porous material workpiece 8 is tubular workpiece, and need on this tubular workpiece inwall during deposited powder raw material, as shown in Figure 3, adopt left intermediate plate 9-1 and right clamping piece 9-2 that top, settling chamber 3 is fixed in one end of the porous material workpiece 8 of tubulose, then the other end of the porous material workpiece 8 of tubulose is closed, the inwall of porous material workpiece 8 is connected with mixing chamber 4, the outer wall of porous material workpiece 8 is connected with vavuum pump 2, then start vavuum pump 2 and provide stable negative-pressure air-flow in settling chamber 3, gas flowmeter 13 is for monitoring the mass flow of air in pipeline, whether differential pressure pickup 7 satisfies the demand for the pressure reduction detecting two ends, settling chamber about 3, preferred employing compressed air is as the power source of powder feeder 6, powder stock is delivered to mixing chamber 4 with the form of dusty gas inner, it is inner that air enters mixing chamber 4 through air cleaner 5, starting fan 17 makes powder stock to be deposited and the air after filtering be fully mixed to suitable concn, under negative pressure and Action of Gravity Field, powder stock to enter in settling chamber 3 and is attached on porous material workpiece 8 inwall, because porous material workpiece 8 both sides produce larger pressure reduction, powder stock is made to form rete 18 gradually on porous material workpiece 8 inwall.
When described porous material workpiece 8 is sheet-like workpiece, as shown in Figure 4, adopt left intermediate plate 9-1 and right clamping piece 9-2 that the porous material workpiece 8 of sheet is fixed on bottom, settling chamber 3, porous material workpiece 8 side to be deposited is connected with mixing chamber 4, the opposite side of porous material workpiece 8 is connected with vavuum pump 2, then start vavuum pump 2 and provide stable negative-pressure air-flow in settling chamber 3, gas flowmeter 13 is for monitoring the mass flow of air in pipeline, whether differential pressure pickup 7 satisfies the demand for the pressure reduction detecting two ends, settling chamber about 3, preferred employing compressed air is as the power source of powder feeder 6, powder stock is delivered to mixing chamber 4 with the form of dusty gas inner, it is inner that air enters mixing chamber 4 through air cleaner 5, starting fan 17 makes powder stock to be deposited and the air after filtering be fully mixed to suitable concn, under negative pressure and Action of Gravity Field, powder stock to enter in settling chamber 3 and is attached to porous material workpiece 8 side surface to be deposited, because porous material workpiece 8 both sides produce larger pressure reduction, powder stock is made to form rete 18 gradually on porous material workpiece 8 surface.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (6)
1. a negative pressure precipitation equipment, comprise the inner base (1) for hollow structure, it is characterized in that: described base (1) inside is provided with vavuum pump (2), described base (1) is provided with separation chamber (10), described separation chamber (10) upper end is communicated with settling chamber (3), described settling chamber (3) upper end is provided with the mixing chamber (4) for mixing powder stock to be deposited and air, described mixing chamber (4) inside is provided with fan (17), described mixing chamber (4) upper end is provided with air cleaner (5), the lower end of described separation chamber (10) is connected with vavuum pump (2) by high efficiency particulate air filter (12), screen pack (11) is provided with in described separation chamber (10), described base (1) is provided with for providing the powder feeder of powder stock to be deposited (6) and the differential pressure pickup (7) for measuring upper and lower two ends, settling chamber (3) pressure reduction in mixing chamber (4), the fixture for fixing porous material workpiece is detachably installed in described settling chamber (3).
2. according to a kind of negative pressure precipitation equipment according to claim 1, it is characterized in that: described fixture is made up of the left intermediate plate (9-1) be arranged on the inwall of described settling chamber (3) both sides and right clamping piece (9-2).
3. according to a kind of negative pressure precipitation equipment according to claim 1, it is characterized in that: the pipeline between described separation chamber (10) and vavuum pump (2) is provided with gas flowmeter (13).
4. according to a kind of negative pressure precipitation equipment according to claim 1, it is characterized in that: described base (1) is provided with backstay (14), described backstay (14) being provided with the fixed bar (15) for installing described mixing chamber (4) and air cleaner (5).
5. according to a kind of negative pressure precipitation equipment according to claim 1, it is characterized in that: the meal outlet place of described powder feeder (6) is connected with bell-shaped nozzle (16).
6. according to a kind of negative pressure precipitation equipment according to claim 1, it is characterized in that: the quantity of described fan (17) is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520796576.3U CN205032733U (en) | 2015-10-14 | 2015-10-14 | Negative pressure deposition apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520796576.3U CN205032733U (en) | 2015-10-14 | 2015-10-14 | Negative pressure deposition apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205032733U true CN205032733U (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520796576.3U Expired - Fee Related CN205032733U (en) | 2015-10-14 | 2015-10-14 | Negative pressure deposition apparatus |
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| CN (1) | CN205032733U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003468A (en) * | 2016-05-06 | 2016-10-12 | 广东汉邦激光科技有限公司 | Powder recycling system and method |
| CN111179896A (en) * | 2020-01-06 | 2020-05-19 | 苏州大学 | Honeycomb embedded coupling structure composite material and preparation method thereof |
-
2015
- 2015-10-14 CN CN201520796576.3U patent/CN205032733U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003468A (en) * | 2016-05-06 | 2016-10-12 | 广东汉邦激光科技有限公司 | Powder recycling system and method |
| CN111179896A (en) * | 2020-01-06 | 2020-05-19 | 苏州大学 | Honeycomb embedded coupling structure composite material and preparation method thereof |
| CN111179896B (en) * | 2020-01-06 | 2022-06-14 | 苏州大学 | Honeycomb embedded coupling structure composite material and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20211014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |