CN202498210U - Totally-enclosed gas atomization pulverization apparatus for block resistance of high-melting point substance - Google Patents
Totally-enclosed gas atomization pulverization apparatus for block resistance of high-melting point substance Download PDFInfo
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- CN202498210U CN202498210U CN2011205649087U CN201120564908U CN202498210U CN 202498210 U CN202498210 U CN 202498210U CN 2011205649087 U CN2011205649087 U CN 2011205649087U CN 201120564908 U CN201120564908 U CN 201120564908U CN 202498210 U CN202498210 U CN 202498210U
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Abstract
The utility model discloses a totally-enclosed gas atomization pulverization apparatus for block resistance of a high-melting point substance. The device comprises a heat insulation crucible, an atomizer, an atomization tower, a telescopic plastic pipe A, a telescopic plastic pipe B and the like, wherein the atomizer is arranged in the telescopic plastic pipe A; the telescopic plastic pipe A is respectively connected with the heat insulation crucible and the upper surface of a nozzle of the atomizer in a sealed mode; the atomization tower is connected with the lower surface of the nozzle through the telescopic plastic pipe B in the sealed mode to form an totally-enclosed system structure, the structure can prevent high-melting point substance from being formed on the atomizer and blocking the atomizer. A heat-generating body is arranged in the gaps between a flow guide tube and a metal coat of the atomizer, and the nozzle obstruction due to metal or alloy can be solved by energizing. When the atomizer is blocked, a ceramic circular ring can be used for solving the block problem. The totally-enclosed gas atomization pulverization apparatus for block resistance of the high-melting point substance has the advantages that the apparatus has a simple structure and is convenient to install, blocking is effectively prevented, the quality of powder is improved, and the like.
Description
Technical field
The utility model relates to atomizing molten materials with gases makes the ultra-fine powder technology field, a kind of totally-enclosed powder by gas-atomization device that the high-melting-point material blocks that prevents for preparing the metal or alloy ultra-micro powder of more specifically saying so.
Background technology
High-performance metal and alloy powder have important engineering application background and big market development potentiality mostly, and be more and more wide in the application in fields such as Aero-Space, electronic information, electricity power, metallurgical machinery in recent years.Along with development of modern science and technology, to the aspects such as kind, quality and cost of dusty material require increasingly high, the preparation of metal dust towards high-purity, fine, composition and controllable granularity and cheaply direction develop.The advantages such as production that atomized powder has the sphericity height, powder size is controlled, oxygen content is low, production cost is low and adapt to multiple metal and alloy powder have become the technological main developing direction of high-performance and special alloy powder preparation.
The gas atomization technology is the main method of producing metal and alloy powder, and the basic principle of gas atomization is liquid metal to be flowed the process that is ground into droplet and is frozen into powder with a high velocity air.What vacuum atomizing powder process was adopted is the metal or metal alloy that melting obtains under vacuum condition; When they reach certain degree of superheat; Change in the insulation crucible (tundish) after being incubated reasonable time again; Under the condition of gas shield, these metal liquids flow out, by high-pressure inert gas stream the metal liquid atomizing are broken into a large amount of tiny drops through nozzle through mozzle, and these tiny drops are frozen into sphere or inferior spheric granules awing.Because drop is tiny good with the heat exchange condition, the condensation rate of drop generally can reach 100 ~ 10000K/s, and than the high several magnitude of the cooling of ingot casting, so metal powder particles is tiny, and the composition of alloy is even, organizes tiny.Vacuum atomizing powder process not only can prepare great majority can not be employed in metal and the alloy powder made from the water atomization method in the air thereof, and can produce the spherical or inferior spherical powder of many specific alloys.The all available atomization production of nearly all metal that is melted, especially suitable for producing alloy powder.Vacuum atomizing powder process method production efficiency is high, is easy to enlarge commercial scale, should and receive the extensive utilization of industrial quarters.
Atomizer in use often runs into the mozzle phenomenon of blocking and occurs in the prior art, and this is mainly caused by the reason of following three aspects, and the one, molten metal occurs solidifying because temperature reduces in flow process; The 2nd, backwash appears in molten drop in atomization process; Promptly the drop of atomizing is to the direction flight of aerodynamic atomization nozzle; The molten drop of backwash adheres to the lower end of aerodynamic atomization nozzle; And constantly solidify accumulation, finally cause the centre bore of aerodynamic atomization mozzle wherein to stop up and make the atomization process interruption; The 3rd, reaction such as the oxygen in metal bath and the atomizer ambient gas, nitrogen, pipeline and mozzle material generates high-melting-point materials such as metal oxide, nitride, carbide, along with increasing of these amounts, can mozzle be stopped up.When this situation occurring, the general way of enterprise is to stop to produce, and atomizer is pulled down mediation; But this way usually can not be dealt with problems; This mainly is because these high-melting-point melting point substances are generally higher, in this case, has only the mozzle of replacing and even whole atomizer.But also there are two problems in the method for changing, the one, run into the intrusion of oxygen in the air, nitrogen and other gas in the replacing process unavoidably, and their meeting oxidations, metal nitride have influenced product quality, and the 2nd, reduced efficient, increased production cost.
At present, the technology of atomizer being improved renewal has a lot, but seldom stops up the especially patent and the technology of oxide, nitride or other high-melting-point material blockage problem relevant for the mozzle that how to solve atomizer.Therefore, seek a kind of effective solution, the mozzle that can solve atomizer stops up especially oxide, nitride or other high-melting-point material blockage problem, can also guarantee simple and practical, still difficult problem concerning the technical staff.
Summary of the invention
One of purpose of the utility model is to solve above-mentioned technical problem and a kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking is provided, and the mozzle metal that it can solve atomizer effectively stops up especially oxide, nitride or other high-melting-point material blocking problem.
The technical scheme of the utility model
A kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking comprises insulation crucible, atomizer, scalable plastic tube A, atomisation tower, scalable plastic tube B etc.;
Wherein said atomizer comprises mozzle, nozzle, also comprises metal-coating, heater, ceramic annulus and ceramic-seal ring etc. in addition;
Described nozzle is provided with air inlet pipe and gas outlet;
The upper end core of described metal-coating has the hole that adapts with the mozzle external diameter; In order to mozzle to be installed; The lower end of metal-coating is uncovered, metal-coating from top to bottom the end near 1/3 ~ 1/2 place of bottom outlet be apered to 80
~ 89
the outer cone body;
The outside of the part that is apered to bullet of metal-coating be provided with screw thread and with the side of the interior center taper hole of nozzle on threads engaged, to realize support, the location and fixing to metal-coating, the metal-coating remainder does not contact with nozzle;
Make mozzle and metal-coating concentric during installation, the bottom of mozzle is concordant with the bottom of metal-coating;
Heater is installed in the gap that 10mm ~ 100mm is arranged between mozzle and the metal-coating in the gap; So that mozzle does not directly contact with metal-coating, can prevent the conduction between heater and the metal-coating on the one hand, can reduce scattering and disappearing of mozzle heat on the other hand greatly;
Described heater is provided with external power interface and is connected with extraneous power supply; In case in atomizer uses, take place under the situation of metal or low melting point obstruction; Can be through the heater energising, heating makes its fusing that heats up to tamper, reaches to solve the purpose that metal or alloy stops up; Described extraneous power supply is 220V or 380V power supply;
In addition, preferably being provided with metallic reflective coating or spraying the formed reflecting layer of one deck white reflecting coating on the surface of metal-coating near heater, is the energy that is used for reflecting the heater radiation, reduces the energy-conservation effect of energy loss thereby reach; The used coating of described white reflecting coating is preferably tin oxide;
Described ceramic annulus and mozzle uniform internal diameter; The external diameter of pottery annulus is less than metal-coating bottom external diameter and greater than metal-coating bottom internal diameter; On the edge in the inner footpath of pottery annulus a boss is arranged, this boss structure matches with the recessed portion of mozzle bottom; Between the extension of the extension of boss and ceramic annulus, have screw, the position of this screw is corresponding to the gap between heat pipe and the metal-coating and near the inwall of metal-coating; The position corresponding with this position also has corresponding screw on the top of metal-coating simultaneously; The quantity of screw is 4 ~ 8;
The screw of the another side corresponding with the boss one side is arranged is provided with corresponding recessed hole on the pottery annulus, and the size in this hole is installed with the embedding that guarantees ceramic-seal ring;
The pottery annulus is installed to the bottom of mozzle and is embedded in the metal-coating; The boss of pottery annulus is embedded on the recessed portion of mozzle bottom; After installing, guarantee to flush with the lower surface of metal-coating with the corresponding another side of boss one side is arranged on the ceramic annulus;
The inner surface spraying of pottery annulus is gone up and the material that often takes place to stop up; The material that is difficult to adhere to like metal, alloy liquation, metal oxide or metallic compound; Be used for preventing the accumulation of solidifying of oxide or other compound, thereby reach the purpose that prevents to stop up, solve obstruction at circular body surface; The selection of inner surface spraying material will be according to different atomization metals, and methods such as employing angle of wetting are confirmed;
Screws with nut earlier in described metal screw bottom, pass screw corresponding on screw corresponding on the ceramic annulus and the metal-coating then successively after, on the metal screw that is positioned at metal-coating upper position place, be tightened with locking nut;
The position of adjacent nut is put into ceramic-seal ring and is threaded with ceramic annulus employing in ceramic annulus screw subsequently.
Described ceramic-seal ring material is selected basic zirconium phosphate pottery, aluminum phosphate or microcrystal glass processable ceramic for use;
Described mozzle, metal-coating can be different according to atomization metal or alloy powder, select material different;
Even that described mozzle can be selected is high temperature resistant, thermal insulation good, inertia, be easy to process or be difficult to process but can be made into the material of simple shape, like aluminium oxide ceramics, silicon nitride ceramics, boron nitride ceramics, zirconia ceramics, silicon carbide ceramics and other refractory ceramics;
But described metal-coating selection intensity is high, be easy to process, inexpensive material, like carbon steel or stainless steel.
Described heater is different, optional with electric furnace heating wire, silicon carbon rod heater according to atomization metal or alloy powder, and they play a role through the mode of installing or twine;
Above-mentioned scalable plastic tube A one end is tightly connected with insulation crucible one end; The nozzle upper surface of the other end and atomizer is tightly connected; Atomisation tower links to each other through scalable plastic tube B with the outside, nozzle gas outlet of the lower surface of nozzle; Scalable plastic tube A bottom is provided with the vavuum pump interface near the position of nozzle; External vavuum pump; The drain hole valve that the atomisation tower bottom is provided with is the atomisation tower valve, and two and half foretell round metal cylindricality cylinder is placed in respectively in inside and outside two metallic channels on nozzle lower surface and the atomisation tower, promptly forms by insulation crucible, scalable plastic tube A, nozzle, scalable plastic tube B, atomisation tower, atomisation tower valve and reaches the totally-enclosed system architecture of forming with the vavuum pump of scalable plastic tube A connection;
Described vavuum pump is conventional vacuum system, comprises all kinds of mechanical pumps, diffusion pump, molecular pump etc.;
Inner at scalable plastic tube A, insulation crucible one end that is connected with scalable plastic tube A is connected with through pipeline it on and is incubated the crucible valve, so that the use when vacuumizing of above-mentioned totally-enclosed system architecture inside;
Insulation crucible valve again through an end be bell-mouthed pipeline with the port of the mozzle of atomizer through metal ferrule and establish above that bolt and be close to pad and be connected, they all place the inside of scalability plastic tube A;
In addition, scalable plastic tube A respectively is provided with pair of glove on the position corresponding to the upper limb place of metal ferrule, metal-coating, with convenient the mozzle and the metal-coating of atomizer is operated;
Scalable plastic tube B also is provided with pair of glove on the position corresponding to the ceramic annulus of atomizer, be used for foretelling round metal cylindricality cylinders, ceramic annulus and ceramic-seal ring to two and half and operate;
Described three both hands cover adopts adhesive to be connected with scalable plastic tube A or scalable plastic tube B respectively for plastics thin type gloves;
In addition, on the scalable plastic tube A corresponding to the position of mozzle and on scalable plastic tube B corresponding to the position of the ceramic annulus of atomizer be provided with structure identical get the thing mouth, to make things convenient for exchanging for of article inside and outside the closed system;
Getting on the described scalable plastic tube A got the thing mouth on thing mouth and the scalable plastic tube B; Be respectively equipped with two layers of vacuum valve; Be internal layer vacuum valve and outer vacuum valve; Outer vacuum valve on it adopts the vacuum rubber pipe to be connected with extraneous multiple-pass joint, and the latter is connected near the continuous vavuum pump in the position of nozzle with above-mentioned scalable plastic tube A bottom again.
When from the totally-enclosed system, getting article, be placed on two spaces between the valve to article earlier, close the internal layer valve subsequently, open outer valve, take out article; And when article are put in the totally-enclosed system, open outer valve earlier, put article between internal layer valve and the outer valve space, subsequently this space is vacuumized, reach vacuum after, stop to bleed, open the internal layer valve, article are put in the totally-enclosed system;
And when generation needs the transposing mozzle (as ftractureing for a long time in mozzle year), at first descend nozzle, metal-coating and heater, and write down the distance that outside scale descends, in closed system, unload metal ferrule, take off mozzle, and through getting the transposing of thing mouth; When mozzle is installed, at first in closed system, load onto mozzle, rise subsequently air cavity, metal-coating and heater according to the height that outside scale rises and writes down, guarantee to be in place at every turn.
And when generation needs the ceramic annulus of transposing, (block as the high-melting-point material takes place); At first, utilize two and half to foretell the slip of round metal cylindricality cylinder on inside and outside two metallic channels on atomizer nozzle and the atomisation tower, open the internal structure of round metal cylindricality cylinder through the gloves on the Polypropylence Sheet; Utilize gloves subsequently; Screw off ceramic-seal ring, unload the ceramic annulus on the atomizer, and change through the thing mouth of getting on the scalable plastic tube B; When ceramic annulus is installed, at first ceramic annulus is put into scalable plastic tube B through the thing mouth of getting on the scalable plastic tube B, install the ceramic annulus on the atomizer then, refill ceramic-seal ring.
Described scalable plastic tube A and scalable plastic tube B; Its material adopts high-temperature resistance plastice; Coat glass fibre, the middle scalable exotic material that adopts the enhancing of stainless steel elastic helix steel wire, outside to form like its inside, like the flexible vent hose of high-temperature nylon for Polypropylence Sheet.Adopt scalable plastic tube A, conveniently under closed environment, atomizer is handled.
Above-mentioned a kind of totally-enclosed powder by gas-atomization Unit Installation process that prevents that the high-melting-point material from blocking is following:
At first the metal-coating on the atomizer is installed on the nozzle through being threaded, the outer cone body of metal-coating is matched with the interior center taper hole of nozzle, the metal-coating remainder does not contact with nozzle;
Then heater is installed in the metal-coating the inside;
Put into mozzle in the heater inboard subsequently; The center of mozzle overlaps with the center of metal-coating; Place ceramic annulus in exit, mozzle bottom afterwards; Screwed with nut in the metal screw bottom again; After passing screw corresponding on screw corresponding on the ceramic annulus and the metal-coating then successively, on the metal screw that is positioned at metal-coating upper position place, be tightened with locking nut, the position of adjacent nut is put into ceramic-seal ring and is threaded with ceramic annulus employing in the screw of ceramic annulus subsequently;
Then above-mentioned atomizer is put into scalable plastic tube A, afterwards scalable plastic tube A is installed between insulation crucible and the nozzle;
Gloves etc. are installed on scalable plastic tube A subsequently;
Inside and outside two metallic channels and two and half then are installed between the outside, nozzle lower surface nozzle gas outlet and spray tower are foretold round metal cylindricality cylinder;
Scalable plastic tube B etc. is installed between nozzle lower surface and spray tower at last, installs thereby accomplish a kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking.
The above-mentioned a kind of application process of totally-enclosed powder by gas-atomization device in metal and alloy pulverizing process that prevents that the high-melting-point material from blocking, specific as follows:
Because a kind of improvement that prevents the totally-enclosed powder by gas-atomization device that the high-melting-point material blocks of the utility model; In the equipment use, at first close insulation crucible valve and atomisation tower valve, with vavuum pump scalable plastic tube A and scalable plastic tube B are vacuumized processing then; After waiting to be extracted into appropriate vacuum degree; Put into inert gas, when scalable plastic tube A and scalable plastic tube B internal pressure are superatmospheric, open the atomisation tower valve; Open insulation crucible valve subsequently and put into metal bath, carry out the powder atomizing and handle.If during atomizer takes place mozzle when stopping up, or change mozzle or opening power, utilize heater to heat-treat to stopping up metal, impel its fusing, solve the blockage problem of mozzle and nozzle.Just in case under the situation that heat-treating methods does not prove effective, then two layers of vacuum valve that are provided with above the thing mouth through getting on the scalable plastic tube B are changed ceramic annulus.
The technique effect of the utility model
The utility model a kind of prevents in the totally-enclosed powder by gas-atomization device that the high-melting-point material blocks; Because atomizer adopts closed system; The intrusion of oxygen, nitrogen or other gas in the atomizer unloading process be can avoid, the product quality that the shutdown that obstruction caused to nozzle and even mozzle brings and the loss of economic aspect prevented after the generation of high-melting-point materials such as oxide, nitride.
A kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking of the utility model; Through changing the structure of atomizer; In the gap between mozzle and the metal-coating, heater is installed; Through heating, can eliminate the low melting point tamper that metal or alloy forms effectively, can also play insulation effect to molten metal; Can prevent the cooled and solidified that produces in the flow process that molten metal causes because of reasons such as Changes in weather effectively, thereby the phenomenon of avoiding the mozzle mouth of pipe to stop up atomizing can't be continued takes place.
At present, the technology of atomizer being improved renewal has a lot, thereby existing powder by gas-atomization apparatus structure is numerous, different.Compare with existing atomizer; The atomizer that the utility model provides belongs to a kind of whole closing appliance that the high-melting-point material blocks that prevents and solve; Not only can get rid of the generation of mozzle mouth of pipe oxide, nitride and other high-melting-point material, and can eliminate the low melting point tamper that metal or alloy forms through heating.
A kind ofly prevent that most of parts adopt the metal material manufacturing, and are not only cheap, easy to process in the totally-enclosed powder by gas-atomization device that the high-melting-point material blocks what the utility model provided; Reusable; And mozzle is concordant with the metal-coating end, can prevent that the mozzle end from contacting with the high speed cold air-flow, and the mozzle heating status is significantly improved; Thermal shock resistance improves, and is difficult for bursting.Because the protection of metal-coating, the mozzle security performance improves, and the difficult phenomenon that fractures or damage occurs.
A kind of preventing in that the utility model provides left the gap between mozzle and the metal-coating in the totally-enclosed powder by gas-atomization device that the high-melting-point material blocks, and the metal-coating internal layer is provided with the reflecting layer; Metal-coating only contacts with nozzle with an awl section; Area of dissipation reduces, and mozzle does not directly contact the high speed cold air-flow, and these measures help the insulation of mozzle; The temperature that can keep melt significantly reduces the melt atomizing degree of superheat and reduces the danger of stopping up; Even cause under the not high situation of mozzle temperature in that the melt overheat degree is less, also can adopt the heater energy to keep the temperature of melt, so being used for of heater reduced the atomizing degree of superheat guarantee is provided.The reduction of melt overheat degree can effectively weaken the reaction between melt and the mozzle, alleviates composition and pollutes, and improves the quality of powder.
This shows that a kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking of the utility model has simple in structure, is prone to processing; Easy to use; Cost is low, can be repeatedly used, and anti-clogging, mediation are stopped up effective; Can save the work into mediation or replacing mozzle greatly, production efficiency improves.
Description of drawings
Fig. 1, prevent the contour structures sketch map of the totally-enclosed powder by gas-atomization device that the high-melting-point material blocks, in the picture in picture: 1 for the insulation crucible, 2 for get thing mouth A, 3 for scalable plastic tube A, 4 for gloves I, 5 for the heater external power interface I of atomizer, 6 for gloves II, 7 for the nozzle of atomizer, 8 for the air inlet pipe of nozzle, 9 for scalable plastic tube B, 10 for gloves III, 11 for get thing mouth B, 12 for atomisation tower, 13 for the atomisation tower valve, 14 for gloves III, 15 for the heater external power interface II of atomizer, 16 be that vavuum pump interface, 17 is that gloves V, 18 is gloves VI.
The structural representation of getting the thing mouth on Fig. 2, the scalable plastic tube A, 21 is that internal layer vacuum valve, 22 is that inner space, 23 is that outer vacuum valve, 24 is that outer space, 25 is the vavuum pump interface among the figure, 3 is scalable plastic tube A;
Fig. 3, the part, inside that prevents the totally-enclosed powder by gas-atomization device that the high-melting-point material blocks and nozzle dissect structural representation; Among the figure 1 for insulation crucible, 3 be scalable plastic tube A, 4 for gloves I, 5 for heater external power interface I, 6 for gloves II, 7 for nozzle, 8 for the air inlet pipe of nozzle, 9 for scalable plastic tube B, 10 for gloves III, 12 for atomisation tower, 13 for the atomisation tower valve, 14 for gloves IV, 15 for heater external power interface II, 17 for gloves V, 18 for gloves VI, 19 for pipeline, 20 for metal ferrule, 21 for pad, 22 for bolt, 23 for the gas outlet of nozzle, 24 for the space between metal-coating and the mozzle, 25 for heater, 26 for mozzle, 27 for insulation crucible valve, 28 for metal-coating, 29 for ceramic-seal ring, 30 be half foretell round metal cylindricality cylinder, 31 for ceramic annulus, 32 for metal screw, 33 for locking nut.
The specific embodiment
Below through embodiment and combine accompanying drawing that the utility model is done further to specify, but do not limit the utility model.
Embodiment 1
A kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking; Its profile sketch map is as shown in Figure 1, in the picture in picture: 1 for the insulation crucible, 2 for get thing mouth I, 3 for scalable plastic tube A, 4 for gloves I, 5 for the heater external power interface I of atomizer, 6 for gloves II, 7 for the nozzle of atomizer, 8 for the air inlet pipe of nozzle, 9 for scalable plastic tube B, 10 for gloves III, 11 for get thing mouth II, 12 for atomisation tower, 13 for the atomisation tower valve, 14 for gloves III, 15 be that gloves V, 18 is gloves VI for the heater external power interface II of atomizer, 16 is vavuum pump interface, 17.
The above-mentioned thing mouth A2 that gets is provided with two layers of vacuum valve, and structural representation is as shown in Figure 2, and 21 is the internal layer vacuum valve among the figure, and 22 is inner space, and 23 is outer vacuum valve, and 24 is the outer space, and 25 is the vavuum pump interface;
When from the totally-enclosed system, getting article, be placed on the space between valve 21 and 23 to article earlier, valve-off 21 subsequently, open valve 23, take out article;
And when article are put in the totally-enclosed system, open valve 23 earlier, put article between valve 21 and 23 space, subsequently this space is vacuumized, reach vacuum after, stop to bleed, open valve 21, article are put in the totally-enclosed system;
The above-mentioned structure of getting thing mouth B11 is with the structure of getting thing mouth A2, and its process of getting thing and putting article into is as the operation of getting thing mouth A2.
A kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking; Its inner part and nozzle to dissect structural representation as shown in Figure 3; Among the figure 1 for insulation crucible, 3 be scalable plastic tube A, 4 for gloves I, 5 for heater external power interface I, 6 for gloves II, 7 for nozzle, 8 for the air inlet pipe of nozzle, 9 for scalable plastic tube B, 10 for gloves III, 12 for atomisation tower, 13 for the atomisation tower valve, 14 for gloves IV, 15 for heater external power interface II, 17 for gloves V, 18 for gloves VI, 19 for pipeline, 20 for metal ferrule, 21 for pad, 22 for bolt, 23 for the gas outlet of nozzle, 24 for the space between metal-coating and the mozzle, 25 for heater, 26 for mozzle, 27 for insulation crucible valve, 28 for metal-coating, 29 for ceramic-seal ring, 30 be half foretell round metal cylindricality cylinder, 31 for ceramic annulus, 32 for metal screw, 33 for locking nut.
Can find out that in conjunction with Fig. 1 and Fig. 3 the scalable plastic tube A3 that atomizer is installed is tightly connected with insulation crucible 1 one ends, the other end and nozzle 7 upper surfaces are tightly connected;
Described vavuum pump is a mechanical pump;
In the inside of scalable plastic tube A3, insulation crucible 1 one ends that are connected with scalable plastic tube A3 are connected with insulation crucible valve 27 through pipeline on it; Insulation crucible valve 27 is connected with an end of pipeline 19, the horn mouth that an other end of pipeline 19 is an inner flat,
Metal ferrule 20 mouthful is tightly connected its flush end with the horn mouth inside of pipeline 19 through bolt 22 and the pad 21 that is located on the metal ferrule 20 with holding level with both hands on the mozzle 26 of atomizer;
In addition; From Fig. 1 and Fig. 3, it can also be seen that; Scalable plastic tube A3 on corresponding to the position at the upper limb place of metal ferrule 20, metal-coating 28 and scalable plastic tube B9 on position, respectively be provided with a pair of plastics thin type gloves and be respectively 4 among the figure, 6,10,14,17,18 corresponding to the ceramic annulus 31 of atomizer; They adopt adhesive to be connected on scalable plastic tube A3 and the scalable plastic tube B9 respectively, in order to metal-coating 28, mozzle 26, the ceramic-seal ring 29 of atomizer, partly foretell round metal cylindricality cylinder 30 and ceramic annulus 31 and operate;
The nozzle 7 of atomizer is provided with the gas outlet 23 of nozzle air inlet pipe 8 and nozzle;
The upper end core of metal-coating 28 has the hole that adapts with mozzle 26 external diameters; In order to mozzle 26 to be installed; The lower end of metal-coating 28 is uncovered, metal-coating 28 from top to bottom the end near 1/3 ~ 1/2 place of bottom outlet be apered to 80
~ 89
the outer cone body;
The outside of the part that is apered to bullet of metal-coating 28 be provided with screw thread and with the side of the interior center taper hole of nozzle 7 on threads engaged, to realize support, the location and fixing to metal-coating 28, metal-coating 28 remainders do not contact with nozzle 7;
Make mozzle 26 concentric with metal-coating 28 during installation, the bottom of mozzle 26 is concordant with the bottom of metal-coating 28;
Described heater 25 is provided with external power interface 5 and 15 and passes scalable plastic tube A3 and be connected with extraneous power supply, and described extraneous power supply is 220V or 380V power supply;
In addition, be provided with metallic reflective coating or spray the formed reflecting layer of one deck white reflecting coating on the surface of metal-coating 28 near heater 25, the used coating of described white reflecting coating is tin oxide;
Described ceramic annulus 31 and mozzle 26 uniform internal diameters; The external diameter of pottery annulus 31 is less than metal-coating 28 bottom external diameters and greater than metal-coating 28 bottom internal diameters; On the edge in pottery annulus 31 inner footpaths a boss is arranged, this boss structure matches with the recessed portion of mozzle 26 bottoms; Between the extension of the extension of boss and ceramic annulus 31, have screw, the position of this screw is corresponding to the gap between heat pipe 26 and the metal-coating 28 and near the inwall of metal-coating 28; The position corresponding with this position also has corresponding screw on the top of metal-coating 28 simultaneously; The quantity of screw is 6;
The screw of the another side corresponding with the boss one side is arranged is provided with corresponding recessed hole on the pottery annulus 31, and the size in this hole is installed with the embedding that guarantees ceramic-seal ring 29;
Pottery annulus 31 is installed to the bottom of mozzle 26 and is embedded in the metal-coating 28; The boss of pottery annulus 31 is embedded on the recessed portion of mozzle 26 bottoms; After installing, guarantee to flush with the lower surface of metal-coating 28 with the corresponding another side of boss one side is arranged on the ceramic annulus 31;
The inner surface spraying of pottery annulus 31 is gone up and the material that often takes place to stop up, the material that is difficult to adhere to like metal, alloy liquation, metal oxide or metallic compound;
Described metal screw 32 bottoms are with screwing with nut earlier, pass screw corresponding on screw corresponding on the ceramic annulus 31 and the metal-coating 28 successively after, on the metal screw 32 that is positioned at metal-coating 28 upper position places, be tightened with locking nut 33;
The position of adjacent nut is put into ceramic-seal ring 29 and is threaded with ceramic annulus 31 employings in ceramic annulus 31 screws subsequently.
In gap location employing ceramic-seal ring 29 sealings of metal-coating 28 with mozzle 26 bottoms, described ceramic-seal ring 29 materials are selected basic zirconium phosphate pottery, aluminum phosphate or microcrystal glass processable ceramic for use;
Described mozzle 16 selective oxidation aluminium pottery;
Described metal-coating 14 is selected stainless steel;
Described heater 26 selects for use the mode that electric furnace heating wire twines to play a role;
Described scalable plastic tube A3 and scalable plastic tube B9 adopt the flexible vent hose of high-temperature nylon;
Described gloves are plastics thin type gloves.
A kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking that adopts the utility model the to provide preparation metallic aluminium powder that atomizes, the aluminium oxide phenomenon of blocking does not appear in the mozzle mouth of pipe, and can produce continuously the whole year.Compare with existing powder by atomization device; The totally-enclosed powder by atomization device that prevents high-melting-point material obstruction that the utility model provides; Can solve mozzle mouth of pipe oxide, nitride and other high-melting-point material blockage problem of atomizer and eliminate the low melting point tamper that metal or alloy forms; Realize producing continuously, reduced cost, improved product quality and production efficiency.
Foregoing is merely the basic explanation under the utility model design, and according to any equivalent transformation that the technical scheme of the utility model is done, all should belong to the protection domain of the utility model.
Claims (11)
1. a totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking comprises insulation crucible, atomisation tower, it is characterized in that also comprising atomizer, scalable plastic tube A and scalable plastic tube B;
Wherein said atomizer comprises mozzle, nozzle, metal-coating, heater, ceramic annulus and ceramic-seal ring;
Described nozzle is provided with air inlet pipe and gas outlet;
The upper end core of described metal-coating has the hole that adapts with the mozzle external diameter; In order to mozzle to be installed; The lower end of metal-coating is uncovered, and metal-coating is apered to 80 ° ~ 89 ° outer cone body at an end at 1/3 ~ 1/2 place that exports near the bottom from top to bottom;
The outside of the part that is apered to bullet of metal-coating be provided with screw thread and with the side of the interior center taper hole of nozzle on threads engaged, to realize support, the location and fixing to metal-coating, the metal-coating remainder does not contact with nozzle;
Make mozzle and metal-coating concentric during installation, the bottom of mozzle is concordant with the bottom of metal-coating;
Heater is installed in the gap that 10mm ~ 100mm is arranged between mozzle and the metal-coating in the gap;
Described heater is provided with external power interface and is connected with extraneous power supply; Described extraneous power supply is 220V or 380V power supply;
Described ceramic annulus and mozzle uniform internal diameter; The external diameter of pottery annulus is less than metal-coating bottom external diameter and greater than metal-coating bottom internal diameter; On the edge in the inner footpath of pottery annulus a boss is arranged, this boss structure matches with the recessed portion of mozzle bottom; Between the extension of the extension of boss and ceramic annulus, have screw, the position of this screw is corresponding to the gap between heat pipe and the metal-coating and near the inwall of metal-coating; Simultaneously the position corresponding with this position also has the screw of respective numbers on the top of metal-coating; The quantity of screw is 4 ~ 8;
The screw of the another side corresponding with the boss one side is arranged is provided with corresponding recessed hole on the pottery annulus, and the size in this hole is installed with the embedding that guarantees ceramic-seal ring;
The pottery annulus is installed to the bottom of mozzle and is embedded in the metal-coating; The boss of pottery annulus is embedded on the recessed portion of mozzle bottom; After installing, guarantee to flush with the lower surface of metal-coating with the corresponding another side of boss one side is arranged on the ceramic annulus;
The material that the inner surface spraying is gone up and metal, alloy liquation, metal oxide or metallic compound are difficult to adhere to of pottery annulus;
Screw with nut in described metal screw bottom; After passing screw corresponding on screw corresponding on the ceramic annulus and the metal-coating then successively; On the metal screw that is positioned at metal-coating upper position place, be tightened, in ceramic annulus screw, put into ceramic-seal ring subsequently on the position of adjacent nut and adopt and be threaded with ceramic annulus with locking nut;
Described scalable plastic tube A is tightly connected with the nozzle upper surface that is incubated crucible and atomizer respectively; Atomisation tower links to each other through scalable plastic tube B with the outside, lower surface nozzle gas outlet of nozzle; Scalable plastic tube A bottom is provided with the vavuum pump interface near the position of nozzle; External vavuum pump; The drain hole valve that the atomisation tower bottom is provided with is the atomisation tower valve; Two and half foretell round metal cylindricality cylinder is placed in respectively in inside and outside two metallic channels on nozzle lower surface and the atomisation tower, forms the totally-enclosed system architecture of being made up of the vavuum pump that is incubated crucible, scalable plastic tube A, nozzle, scalable plastic tube B, atomisation tower, atomisation tower valve and be connected with scalable plastic tube A;
Inner at scalable plastic tube A, insulation crucible one end that is connected with scalable plastic tube A is connected with insulation crucible valve through pipeline on it;
Insulation crucible valve again through an end be bell-mouthed pipeline with the port of the mozzle of atomizer through metal ferrule and establish above that bolt and be close to pad and be connected, they all place the inside of scalability plastic tube A;
In addition, scalable plastic tube A on corresponding to the position at the upper limb place of metal ferrule, metal-coating and scalable plastic tube B on the position of the ceramic annulus of corresponding atomizer, respectively be provided with pair of glove; Each gloves adopts adhesive to be connected with scalable plastic tube A or scalable plastic tube B respectively;
In addition, on the scalable plastic tube A corresponding to the position of mozzle and on scalable plastic tube B corresponding to the position of the ceramic annulus of atomizer be provided with structure identical get the thing mouth;
Getting on the described scalable plastic tube A got the thing mouth on thing mouth and the scalable plastic tube B; Be respectively equipped with two layers of vacuum valve; Be internal layer vacuum valve and outer vacuum valve; Outer vacuum valve on it adopts the vacuum rubber pipe to be connected with extraneous multiple-pass joint, and the latter is connected near the continuous vavuum pump in the position of nozzle with above-mentioned scalable plastic tube A bottom again.
2. a kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking as claimed in claim 1, the metal-coating that it is characterized in that described atomizer is provided with metallic reflective coating or the formed reflecting layer of spraying one deck white reflecting coating near the surface of heater.
3. a kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking as claimed in claim 2, the metal-coating that it is characterized in that described atomizer is a tin oxide near the used coating of white reflecting coating of the surface spraying of heater.
4. like claim 1,2 or 3 described a kind of totally-enclosed powder by gas-atomization devices that prevent that the high-melting-point material from blocking, it is characterized in that the ceramic-seal ring material in the described atomizer is selected basic zirconium phosphate pottery, aluminum phosphate or microcrystal glass processable ceramic for use.
5. a kind of totally-enclosed powder by gas-atomization device that prevents high-melting-point material obstruction as claimed in claim 4 is characterized in that described scalable plastic tube A and scalable plastic tube B are inner coating glass fibre, the middle enhancing of stainless steel elastic helix steel wire, the outside scalable exotic material for Polypropylence Sheet formation of adopting.
6. a kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking as claimed in claim 5 is characterized in that described scalable plastic tube A and scalable plastic tube B are the flexible vent hose of high-temperature nylon.
7. a kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking as claimed in claim 6 is characterized in that described vavuum pump is mechanical pump, diffusion pump or molecular pump.
8. a kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking as claimed in claim 7 is characterized in that described mozzle is aluminium oxide ceramics, silicon nitride ceramics, boron nitride ceramics, zirconia ceramics or silicon carbide ceramics.
9. a kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking as claimed in claim 8 is characterized in that described metal-coating is carbon steel or stainless steel.
10. a kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking as claimed in claim 9 is characterized in that described round metal cylindricality cylinder is a stainless steel.
11. a kind of totally-enclosed powder by gas-atomization device that prevents that the high-melting-point material from blocking as claimed in claim 10 is characterized in that described heater is electric furnace heating wire or silicon carbon rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205649087U CN202498210U (en) | 2011-12-30 | 2011-12-30 | Totally-enclosed gas atomization pulverization apparatus for block resistance of high-melting point substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205649087U CN202498210U (en) | 2011-12-30 | 2011-12-30 | Totally-enclosed gas atomization pulverization apparatus for block resistance of high-melting point substance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202498210U true CN202498210U (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205649087U Withdrawn - After Issue CN202498210U (en) | 2011-12-30 | 2011-12-30 | Totally-enclosed gas atomization pulverization apparatus for block resistance of high-melting point substance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202498210U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528058A (en) * | 2011-12-30 | 2012-07-04 | 上海应用技术学院 | Totally-enclosed gas atomizing powder making device for preventing high-melting-point substance from being blocked |
| CN107900366A (en) * | 2017-12-27 | 2018-04-13 | 北京康普锡威科技有限公司 | Aerosolization continuously prepares the device and method of 3D printing titanium or titanium alloy powder |
-
2011
- 2011-12-30 CN CN2011205649087U patent/CN202498210U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528058A (en) * | 2011-12-30 | 2012-07-04 | 上海应用技术学院 | Totally-enclosed gas atomizing powder making device for preventing high-melting-point substance from being blocked |
| CN102528058B (en) * | 2011-12-30 | 2014-12-17 | 上海应用技术学院 | Totally-enclosed gas atomizing powder making device for preventing high-melting-point substance from being blocked |
| CN107900366A (en) * | 2017-12-27 | 2018-04-13 | 北京康普锡威科技有限公司 | Aerosolization continuously prepares the device and method of 3D printing titanium or titanium alloy powder |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121024 Effective date of abandoning: 20141217 |
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| RGAV | Abandon patent right to avoid regrant |