SU1109266A1 - Installation for producing metal powder - Google Patents

Abstract

K INSTALLATION FOR RECEIVING LATERAL POWDERS, containing a spray chamber with a perforated cup placed along the axis of the chamber, mounted on the shaft of a high-speed electric drive, a gas burner, a melt supply device placed on the chamber edge, the discharge pipe unloaded the finished product, o tl-h In order to obtain a powder from melts with a high melting point and high chemical activity, reduce the dimensions of the chamber and control the crystallization rate, the installation contains air duct-intake unit5 gas distribution unit, cold gas supply manifold with annular socket and water nozzles installed in the conical part of the intake unit and in the annular socket, the upper part of which is formed by the camera's collar, and the lower flange, in the gauge of which there is a perforated cup, and the inlet the node is located under the perforated glass coaxially with it and its upper part is made in the form of a conical nozzle, and the cold gas supply collector is placed in the bottom of the chamber and above it houses a gas distribution unit, 2. The installation according to claim 1, is about gas distribution (A dividing unit is made in the form of a free-flow grating. 3. Installation according to claim 1, characterized in that the gas distribution unit is made in the form of annular slots formed by the walls of the cold gas collector and the bottom of the chamber. 4. Installation on PP. 1 and 2, in contrast to the fact that, in order to increase the relative flow rate of the powder by gas flow, it contains a guide apparatus installed in the annular socket of the cold gas supply.

Description

The invention relates to: hfoizvoizvo 1, estvo powders 1 entrob; k; Melt melt and can be used in metallurgical and chemical industry, including the production of granulated ferro-alloys.

It is known to get a note, a plate with a pore ti, a gear, - melt spraying, ssr: - ;; 5 haa working chamber ;, a collection of powder, filled Cooling to 4dkos yo. device for melt advancement 5 rasDhHBa om, yFO centrifugal, r; og1 :( ;: zku (perforated cup) ,, connected to a high-speed drive, and D.Laj podkuch.duch gas and vapor L 1 J

However, this installation does not allow and; from the melt, D / 1I kotoro1 O is inadmissible contact with water 1-shech other OHPA; In the process of cooling, eDe nn 1CristaplizIzIz of the security of the carrier; Owing to the regulation of SCG: rossi or.la / adeni granules with their two-1gen-s in the gas flow, which is negatively said on the innermost - / yreivpe gas pool, t, s ,, i: a, quality 8; - g : e i,

; a: ti6u, a2e bg-ia a-them l :: ;; obregeik: o for

, and: 1ЛЧО:; С; КОИ. and ДССТи1 й81-1,

R.; gup, tsik.ike: l usTanoEKa; . ,,;: och o tsa eu; ches: a - ;: s: and s, a; 4epy ,, :: - herfs l-grosgi-tpt glass l ustgnozlenky on the shaft iuniGona paciu paciu aa device for :; by, aach;:; heated giza E in the form of colutebOG-ha) shek-o; -a i: CGcla FJ which pa j; .ei: i; ei ij Ha, t. c-tag ala napajinenbHc axis ,. ): m -: (- the order of the deviations-iac: d,: W pod ..- i-- a-paT1р: aza aus acoAaao nag., 1.ta, l, ano-, Gak s, aaEa z1ego i okstva pscnc- JijjKeib / E-chillela of the prshgpa ;; -: ha,; ak.a G 2.; „

1; Izle,:., .-., Whether yc -aao; .iK; i is streak-a-d; a :: gkkacha gzb eoggu atstelement of loading of that r & jj5s aygem into companny stream xsl, rks; g - with giza that prlvod -I: to for g dl -:: cues lroyessa ; srkkladlyak.ky; k and o1Sh; 1; lek; gYa increased the flight radius –grn-l, and followed alongframe to the dimensions of the chamber, because the speed-g -. t (bg :: lootd oi t - hzn-ul k o; rf zhz - ;; r-2tv environment prk prol: l rav- HTiK: conditions; (tsezkozkost gaea and ristst-ya talcliratura rasplavla) :::, a-zisit from the test files:, -; 1, 3, a, and its relative speed B of the heated rcisis .. so ke ke in the start button

gpztok., ostisha-a; 1e goes not / hpenke, lo image of strong; crusts on pove L: og, 11; Melt caplm in order to avoid sticking I. imposed a gp-t spreading on -; l5P7 d | : e surfaces, a droplet should be placed in the gas stream —NS Astra -.; - Gragrad, –t. e, enclosing surfaces must; los: --- at a distance from the perforated glass close to which ka is formed; - :. rt, alloy Sputter tray sp-ostzstz;, em to current that drips and melts, drift away from glass, that; n -;; waits to increase the radius of the - working chamber; SL-UTN. flow also contributes to the TOF-r-- that the large langers are cracked in the gas flow, but the installation was not allowed to regulate The intensity of crystal lysgation and, consequently, the effect on tefistal, l1 - 8 is the structure of the material, partly. the increase in the speed of crnstall; - the granulation of aluminum improves their strength properties to ductility, which is important when rolling rpaiJ.yjt B tape

ct; hb: about the invention is to obtain a powder from melts with high gmleros, rounds and high chi-l-per-activity-y1 1s less Camera dimensions to adjust the speed of the SCR Chrostglisisagug., increase from.; 3 o cc and edema.

The specified target is reached by the tem |, h-th installation of dp floor}. And metal and x powder containing a camera with a perforated glass on the shaft of the high-speed one; on the axis of the chamber; a gas burner; The device for feeding the razila-va razchezhegennoe on the camera cover., the pipe of the load 5 of the finished product contains, in, here, the aboriginal distribution node ,; gas supply collector with ring: Collector :: opo - To the injector of the nozzle, -us-ta-oval;: je B of the conical part of the Bozdukhozaboravoy site and in the annular bell, hgrh) -to which part is formed chamber. and gp-ghn - the top flac;. it; - the range of which is located kg ;; rfornro :: a1 Lei c axaH; the air-uroz-uyar rasgEolsken under the perforkK. (ON; snaky sakhanom coaxial with him -h. the upper part of the e-th sshngken lk, si conical pipe, and the amount of cold gas supply is located in the bottom of the chamber and above it is a gas distribution unit.

The gas distribution unit is designed as a cordless grating

At the same time, the gas distribution unit is made in the form of annular gaps formed by the walls of the cold gas collector and the bottom of the chamber.

In addition, the installation contains a directional apparatus installed in the annular bell of the cold gas supply.

Figure 1 shows the proposed installation, figure 2 - the same, option.

The installation contains a working chamber 1 inside which is directly axially: under the top lid 2 a perforated cup 3 is placed, mounted on the shaft of a high-speed electric drive 4, a device 5 for melt supply, an annular bell 6 for feeding cold gas formed by the chamber rim and the upper flange 7 of the housing a camera in which the guiding apparatus 8 can be mounted. moreover, this flange is made movable, a cold gas collector 9 is installed at the bottom of the chamber, closed on top by a pressure-free grating 10, taken as a gas distribution unit, in the bottom there is a branch pipe 11 for unloading the finished product, a gas burner is placed in the upper part of the chamber 12, coaxially with a glass in the case, an air intake unit 13 is placed, terminating in a conical nozzle 14, the upper face of which is placed directly under the glass, with the position of this nozzle vertically and may vary to a limited extent, in a conical patruke, unfailing reschetkoy directly above and in the bell of the cold gas supply nozzle 15 has coolant.

Placed inside the chamber 1 under the cap 2, the cup 3 is rotated by a high-speed electric actuator 4 and sprays the melt poured into the cup through the device 5 for feeding the melt. A cold gas is supplied to the sprayed melt through the bell 6 of the holon gas supply, with the bell

can be adjusted by the position of the upper flask 7 of the chamber, the guide apparatus 8 placed in the socket allows changing the degree of swirling of the gas flow. At the bottom of the chamber, cold gas flows through the manifold 9, which enters the chamber through the unlatched grate 10 and forms an upward flow of gas. Pellets, slowed down by the oncoming gas flow, fall in the ascending gas flow, which increases the time they fall on the unprotected grating on which the boiling layer is formed. The particles cooled in the fluidized bed flow to the nozzle 11 of unloading the finished product, through which they are periodically unloaded. Before starting the installation, the beaker is heated in the flame of the burner 12. Cooling gas is removed from the chamber through the air intake unit 13, ending with a heat exchanger 14, the position of which provides directional movement of gas from the nozzle 6 to the nozzle 3. In the nozzle 6, in the conical part 14 of the intake nozzle and directly above the unscrambled ratchet 10, the nozzles 15 distribute the coolant to the small bore, which leads to a change in the moisture content of the gas.

For granules less than 5 mm, it is advisable to use another installation option (Fig. 2). At the same time between the walls of the collector 9 and the bottom there are annular holes 16 5 accepted as a gas distribution unit, with the axis of the hole located along the central gas collecting unit directed along the bottom, and the axis of the hole located around the chamber wall is directed along this wall, and the bottom is filled with a nozzle} J unloading the finished product, in the upper part of the chamber in the immediate vicinity of the glass there is a gas Gorenka 12, coaxially with the glass in the case there is a central air collection unit 13, an eye chivayuschiys conical nozzle 14, the upper face of which is placed directly under the glass, the position of the nozzle in the vertical

5 may vary within a limited range.

§ this conical nozzle, above the annular gap located

15 10.

FIG.

Claims (4)

1. INSTALLATION FOR PRODUCING METAL POWDERS, containing a spray chamber with a perforated cup placed on the axis of the chamber mounted on a shaft of a high-speed electric drive, a gas burner, a melt supply device located on the chamber cover, a pipe for unloading the finished product, which , in order to obtain powder from melts with a high melting point and high chemical activity, to reduce the size of the chamber and to control the crystallization rate, the installation contains air intakes a unit, a gas distribution unit, a cold gas supply manifold with an annular socket and water nozzles installed in the conical part of the air intake unit and in the annular socket, the upper part of which is formed by the chamber cover and the lower one by the upper flange, in the section of which a perforated glass is placed, and the air intake unit located under the perforated cup coaxially with it and its upper part is made in the form of a conical pipe, and the cold gas supply manifold is placed in the bottom of the chamber and above it there is a gas aspredelitelny node. 2. The installation according to claim 1, wherein the gas distribution unit is made in the form of a wireless grid. 3. Installation according to claim 1, characterized in that the gas distribution unit is made in the form of annular slots formed by the walls of the cold gas manifold and the bottom of the chamber. 4. Installation according to paragraphs. 1 and 2, characterized in that, in order to increase the relative speed of blowing the powder with a gas stream, it contains a guiding apparatus installed in an annular socket for supplying cold gas. ! BY