CN103272444A - Gas cycle purification device for sealed shaping room - Google Patents
Gas cycle purification device for sealed shaping room Download PDFInfo
- Publication number
- CN103272444A CN103272444A CN2013101820910A CN201310182091A CN103272444A CN 103272444 A CN103272444 A CN 103272444A CN 2013101820910 A CN2013101820910 A CN 2013101820910A CN 201310182091 A CN201310182091 A CN 201310182091A CN 103272444 A CN103272444 A CN 103272444A
- Authority
- CN
- China
- Prior art keywords
- forming room
- gas circulation
- circulation purifier
- shaping room
- closed type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a gas cycle purification device for a sealed shaping room. The gas cycle purification device comprises a shaping room, and also comprises a sealed box body, wherein a pre-filtering layer, a main filtering layer and a fan are arranged in the sealed box body from top to bottom; an air inlet is formed in the top of the sealed box body; an air outlet is formed in one side of the bottom of the sealed box body; the air inlet is connected with one end of the shaping room through a pipeline; and the air outlet is connected with the other end of the shaping room through a pipeline. According to the gas cycle purification device for the sealed shaping room, the sealing structure of the conventional product is improved, the smoke dust generated by processed metals in laser melting equipment shaping room in a selected area is subjected to gas purification, and the purified gas returns to the shaping room to protect the metal processing. The gas cycle purification device has the advantages of simple and feasible technical means, low cost, convenience in use and maintenance and the like.
Description
Technical field
The present invention relates to the precinct laser fusion machine-shaping device, relate in particular to the gas circulation purifier of a kind of closed type forming room.
Background technology
In the precinct laser fusion machine-shaping process, need protect by inert gases such as high pure nitrogen, argon gas.Focus in the process of back to metal dust at laser; the generation of a large amount of smog of forming room weakens the effect of protection of nitrogen gas greatly; simultaneously; a large amount of smog are attached on the metal dust; to directly influence the absorption of each layer metal dust surface for laser energy, and finally influence the quality of metal forming part.Therefore, be necessary forming room's gas is carried out circularly purifying.
The SLM moulding needs complete molten metallic material, metal material to contact the generation oxidation with oxygen, even can burn (as pure titanium powder), and when element such as C, Si, Mn, Ti, Ca was arranged in the material, they stablized the impurity phase with the easier formation of combination of oxygen.
By powder of stainless steel (new powder, old powder), pure titanium powder are carried out forming experiment respectively under nitrogen and argon shield condition, find that laser and powder moment of having an effect all can produce smog.Observe and find to use new powder of stainless steel generation smog obviously to reduce, it is few that the relatively newer powder of stainless steel of pure titanium powder generation black smoke produces black smoke.The main source of smog is that C element, low-melting alloy element and impurity element burning, the vaporization in the metal dust causes, the prolonged and repeated use of powder has cumulative function to the degree of smog problem, though be that new powder of stainless steel produces low smoke, but black smoke produces powder and pollutes, and it is more and more serious that long-term accumulated causes laser and powder to make time spent generation smog.All manufacturer or scientific research institutions also can't fundamentally solve the smog problem at present.The main negative effect that smog exists comprises: (1) pollutes transmission lens; (2) contaminated powders.
At first, it is transmission lens to be produced pollute that there is a very serious consequence in smog, particularly low-velocity scanning the time, the laser energy input is big, the amount of smoke that produces is also big, smog makes transmission lens be stained with one deck black smoke powder very soon, when causing laser to see through eyeglass power attenuation serious, the very fast heating of eyeglass, hot up to explosion.When smog is seriously polluted to transmission lens; cause laser to incide the underpower on powder bed surface; powder smelting is insufficient; forming process must be shut down the smog on the manual removal transmission lens repeatedly, so very big to the influence of aspects such as the shaping efficiency of SLM and quantity of sintered parts behind the black smoke pollution transmission lens.In addition, smog produces the protected air-blowing of back fraction beyond the powder bed, and major part still descends slowly and lightly to the powder bed surface that not have use, with powder together, increased the weight of the pollution level of powder.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned prior art, provide a kind of simple in structure, the gas circulation purifier of the closed type forming room that sealing is good.
The present invention is achieved through the following technical solutions:
The gas circulation purifier of a kind of closed type forming room, comprise forming room, described gas circulation purifier, comprise seal case, be provided with pre-filtering layer, main filter course and blower fan from top to bottom in seal case, be provided with air inlet at the top of seal case, the side in the seal case bottom is provided with air outlet, described air inlet is by an end of pipeline connection forming room, and described air outlet connects the other end of forming room by pipeline.
Described main filter course adopts the HEPA air cleaner; Described pre-filtering layer adopts filter cotton.
The sealing casing also comprises a case lid, and the inner surface of case lid is provided with the cylinder internal thread, at the bottom of the lid of case lid silica gel sealing ring is installed.
The interface of described air inlet and air outlet connecting line all has the circular cone internal thread, and the interface of pipeline is provided with the circular cone external screw thread.
The present invention has following advantage and effect with respect to prior art:
The gas circulation purifier is provided with pre-filtering layer and main filter course, and the pre-filtering layer can adsorb particle bigger in the air-flow; Main filter course windage is little, and dust containing capacity is big, the filtering accuracy height.Pre-filtering layer and main filter course are all detachable, and convenient timing is cleared up or changed.The moulding internal ambience is by after fully filtering, and black smoke and vaporized product are filtered, and obtain feeding in the forming room behind the clean gas again.
Air inlet, air outlet all have the circular cone internal thread, and the interface of pipeline is provided with the circular cone external screw thread that matches.After screw thread screwed, the distortion of utilization itself just can guarantee the compactness that connects not need extra filler, seals simple and reliable.In order further to advance to improve sealing effectiveness, can change the air outlet interface into inclined-plane, can fit on the connector inclined-plane that finishes with the interface of pipeline that is threaded.
The inner surface of case lid is provided with the cylinder internal thread, by screwing the cylinder external screw thread of case lid and seal case outer surface, can conveniently realize sealing and the dismounting of gas circulation purifier itself; At the bottom of the lid of case lid silica gel sealing ring is installed, can further guarantees the sealing of gas circulation purifier, reduce the wearing and tearing of case lid simultaneously.
In sum; the gas circulation purifier of this closed type forming room; hermetically-sealed construction to existing product improves; the smog flue dust that is intended to better processing metal in the precinct laser fusion equipment forming room be produced carries out gas purification, the gas that purifies is returned the indoor protection metal processing of moulding again.Plurality of advantages such as its means that possess skills are simple and easy to do, with low cost, and working service is convenient.
Description of drawings
Fig. 1 is the structural representation of the gas circulation purifier of closed type of the present invention forming room.
Fig. 2 is the internal structure schematic diagram of Fig. 1 gas circulation purifier.
Fig. 3 is the cover structure schematic diagram of seal case.
Among the figure: optical fiber laser 1; Beam expanding lens 2; Scanner 3; Forming room 4; Focus lamp 5; Shop powder scraper plate 6; Profiled member 7; Material cylinder 8; Moulding cylinder 9; Gas circulation purifier 10; Air inlet 11; Air outlet 12; Pre-filtering layer 13; Main filter course 14; Blower fan 15; Case lid 18; Sealing ring 19; External screw thread 20.
The specific embodiment
Below in conjunction with specific embodiment the present invention is done further concrete detailed description the in detail.
Embodiment
As shown in Figure 1 and Figure 2, the gas circulation purifier of closed type of the present invention forming room, comprise forming room 4, described gas circulation purifier 10, comprise seal case, in seal case, be provided with pre-filtering layer 13, main filter course 14 and blower fan 15 from top to bottom, be provided with air inlet 11 at the top of seal case, side in the seal case bottom is provided with air outlet 12, described air inlet 11 is by an end of pipeline connection forming room 4, and described air outlet 12 connects the other end of forming room 4 by pipeline.
Described pre-filtering layer 13 adopts filter cotton.Bigger soot dust granule in can adsorption gas flow.
Described main filter course 14 adopts the HEPA air cleaner.Be that particle removal efficiency more than 0.3 micron can reach more than 99.97% to diameter.Pre-filtering layer 13 is all detachable with main filter course 14, and convenient timing is cleared up or changed.
As shown in Figure 3, described seal case also comprises a case lid 18, and the inner surface of case lid 18 is provided with cylinder internal thread 20, and silica gel sealing ring 19 is installed at the bottom of the lid of case lid 18.By screwing the cylinder external screw thread of case lid 18 and seal case outer surface, can conveniently realize sealing and the dismounting of gas circulation purifier itself; Silica gel sealing ring 19 can further guarantee the sealing of gas circulation purifier, reduces the wearing and tearing of case lid simultaneously.
The interface of described air inlet 11 and air outlet 12 connecting lines all has the circular cone internal thread, and the interface of pipeline is provided with the circular cone external screw thread.
For convenient movement to putting position, can install the handle (not shown) in the left and right sides of gas circulation purifier additional.
The gas circulation purifier operation principle of this closed type forming room:
The laser of optical fiber laser 1 emission passes through beam expanding lens 2 by overscanning device 3, focused on the profiled sheeting face of the profiled member 7 of moulding cylinder 9 by focus lamp 5, and the metal dust that will spread on the profiled sheeting face that powder scraper plate 6 spreads over profiled member 7 carries out the constituency fusing, and this process will be accompanied by the generation of smog.Start gas circulation purifier 10; blower fan 15 starts; smog in the forming room 4 enter from air inlet 11 in the seal case of gas circulation purifier 10, and the gas that purifies the most at last through pre-filtering layer 13 and main filter course 14 successively returns in the forming room 4 protection profiled members 7 along air outlet 12 and processes again.
As mentioned above, just can realize the present invention preferably.
Embodiments of the present invention are not restricted to the described embodiments; other are any not to deviate from change, the modification done under spiritual essence of the present invention and the principle, substitute, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (5)
1. the gas circulation purifier of a closed type forming room, comprise forming room, it is characterized in that: described gas circulation purifier, comprise seal case, be provided with pre-filtering layer, main filter course and blower fan from top to bottom in seal case, be provided with air inlet at the top of seal case, the side in the seal case bottom is provided with air outlet, described air inlet is by an end of pipeline connection forming room, and described air outlet connects the other end of forming room by pipeline.
2. the gas circulation purifier of closed type according to claim 1 forming room, it is characterized in that: described main filter course adopts the HEPA air cleaner.
3. the gas circulation purifier of closed type according to claim 1 forming room, it is characterized in that: described pre-filtering layer adopts filter cotton.
4. according to the gas circulation purifier of each described closed type forming room in the claim 1～3, it is characterized in that: described seal case also comprises a case lid, and the inner surface of case lid is provided with the cylinder internal thread, at the bottom of the lid of case lid silica gel sealing ring is installed.
5. the gas circulation purifier of closed type according to claim 4 forming room, it is characterized in that: the interface of described air inlet and air outlet connecting line all has the circular cone internal thread, and the interface of pipeline is provided with the circular cone external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101820910A CN103272444A (en) | 2013-05-16 | 2013-05-16 | Gas cycle purification device for sealed shaping room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101820910A CN103272444A (en) | 2013-05-16 | 2013-05-16 | Gas cycle purification device for sealed shaping room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103272444A true CN103272444A (en) | 2013-09-04 |
Family
ID=49055126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101820910A Pending CN103272444A (en) | 2013-05-16 | 2013-05-16 | Gas cycle purification device for sealed shaping room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103272444A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642891A (en) * | 2015-10-14 | 2016-06-08 | 哈尔滨福沃德多维智能装备有限公司 | Laser melting forming dust-removing system with multifunctional circulating air flow and dust-removing method |
| CN108115130A (en) * | 2016-11-30 | 2018-06-05 | 北京易加三维科技有限公司 | Gas circulation for selective laser fusing manufacture purifies equipment of working continuously |
| CN111974139A (en) * | 2019-09-05 | 2020-11-24 | 中北大学 | Instant dust collecting device for selective laser forming equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2522780Y (en) * | 2002-02-22 | 2002-11-27 | 上海精科环保技术工程有限公司 | Air-purifying apparatus |
| US20100058927A1 (en) * | 2006-07-14 | 2010-03-11 | Freshman Ab | Air filter arrangement and a method for manufacturing the same |
| CN101856724A (en) * | 2010-06-13 | 2010-10-13 | 华南理工大学 | Selective laser melting forming device and method of medical magnesium alloy metal part |
| CN203253269U (en) * | 2013-05-16 | 2013-10-30 | 华南理工大学 | Gas circulation purification device of sealing type shaping chamber |
-
2013
- 2013-05-16 CN CN2013101820910A patent/CN103272444A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2522780Y (en) * | 2002-02-22 | 2002-11-27 | 上海精科环保技术工程有限公司 | Air-purifying apparatus |
| US20100058927A1 (en) * | 2006-07-14 | 2010-03-11 | Freshman Ab | Air filter arrangement and a method for manufacturing the same |
| CN101856724A (en) * | 2010-06-13 | 2010-10-13 | 华南理工大学 | Selective laser melting forming device and method of medical magnesium alloy metal part |
| CN203253269U (en) * | 2013-05-16 | 2013-10-30 | 华南理工大学 | Gas circulation purification device of sealing type shaping chamber |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642891A (en) * | 2015-10-14 | 2016-06-08 | 哈尔滨福沃德多维智能装备有限公司 | Laser melting forming dust-removing system with multifunctional circulating air flow and dust-removing method |
| CN105642891B (en) * | 2015-10-14 | 2017-08-11 | 哈尔滨福沃德多维智能装备有限公司 | Laser fusion shaping dust pelletizing system and dust removal method with multifunctional circulation air-flow |
| CN108115130A (en) * | 2016-11-30 | 2018-06-05 | 北京易加三维科技有限公司 | Gas circulation for selective laser fusing manufacture purifies equipment of working continuously |
| CN108115130B (en) * | 2016-11-30 | 2023-08-08 | 北京易加三维科技有限公司 | Gas circulation purifying continuous operation equipment for selective laser melting manufacture |
| CN111974139A (en) * | 2019-09-05 | 2020-11-24 | 中北大学 | Instant dust collecting device for selective laser forming equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209865644U (en) | Welding fume purification device | |
| CN203253269U (en) | Gas circulation purification device of sealing type shaping chamber | |
| CN202666638U (en) | Movable welding fume recoverer | |
| CN103272444A (en) | Gas cycle purification device for sealed shaping room | |
| CN205586716U (en) | Compound multiple -effect cooking oil fumes purifier | |
| CN207342386U (en) | A kind of movable type welding soot purifying device | |
| CN107983075A (en) | One kind weldering fume purifying apparatus | |
| CN200986250Y (en) | Electrostatic convolve brushing type cooking fume purifying and extracting fan | |
| CN208526242U (en) | A kind of alloy smelting exhaust gas processing device | |
| CN202185246U (en) | Welding fume purification equipment | |
| CN206688467U (en) | A kind of workshop weld fumes cleaning system | |
| CN206103599U (en) | A smoke and dust clarifier for automatic weld room | |
| CN206291274U (en) | A kind of smoke exhaust ventilator with air port oil drip-preventing device | |
| CN209319063U (en) | A kind of bonding machine smoke removing device | |
| CN209451563U (en) | It is welded workshop section's workplace | |
| CN208678626U (en) | Wave soldering scaling powder recycling device | |
| CN207886827U (en) | A kind of derusting dust and welding fume collection discharger | |
| CN208840511U (en) | A kind of increasing material manufacturing laser formation equipment filter core clamp device | |
| CN106622664A (en) | Electric dust remover | |
| CN207342388U (en) | A kind of flue dust multi-stage filtration systems with fixed exhaust fume collecting hood | |
| CN207569884U (en) | A kind of purification flue dust incinerator | |
| CN207429953U (en) | A kind of novel welding fume purifying apparatus | |
| CN204723910U (en) | Secondary aluminium alloy stove cleanse system for soot | |
| CN213132404U (en) | Electric furnace smoke abatement device | |
| CN206320829U (en) | A kind of lampblack absorber of Pyatyi purification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130904 |