SU1465682A1 - Apparatus for pressing dry ice granules - Google Patents

Abstract

The invention relates to a stamping type molding machine for producing granulated ice from liquid carbon dioxide. The goal is to increase the productivity of the process. The device comprises a cylindrical body 1, inside which a sleeve 2 with perforated walls and a screen 3 is mounted. A tamping 9 is installed inside the sleeve 2. At the same time, the tamping device 9 and the sleeve 2 have the shape of a regular hexagon in cross section, and the perimeter of the opening of the sleeve 2 is equal to the perimeter of the female circuit head 5 having an inclined upper surface. 5 il.

Description

Phi2, 1

The invention relates to equipment for forming articles, in particular stamp-type presses for the production of granulated ice from liquid carbon dioxide.

The goal is to increase the productivity of the process.

FIG. schematically shows the proposed device, side view, longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 - the location of the screen and cladding on the sleeve, a longitudinal section; in fig. 5 - device in operation, longitudinal section.

The pellet extrusion apparatus 2 continues. After a delay in the lower position, the tamper 9 moves up to the upper boundary line M (Fig. 56), compressing the snow. One part of this snow is driven into the holes 7 of the head 5, and the other part of the snow is sealed as an ice cake to the surface facing the cavity of the sleeve 2. Due to this, the cavity of the sleeve 2 is sealed off from the outside environment. At the next lowering of the tamping 9, the next portion of liquid carbon dioxide is injected into the cavity of the sleeve 2. After stopping at the lower boundary line H, the rammer 9 again rises up to the upper

The ice contains case 1 from the gas frontier line M. Snow flaky material, sleeve 2 s are punched by tamping 9 to the first rifled walls with an ice-cake rigidly fixed, forming another layer on it, screen 3 and gas-permeable on it forces first

facing 4, around the latter the diameter of the ice cake is pressed into the channels 7, the holes 0.98-1.225 mm. Screen 2 is made of pyramidal protrusions 8 made of twisted diagonally twisted ice crawl along conical expanding steel and encompasses the agglomeration of these channels 7. Due to the fact that the rimmed metal lining with a raster, limited by a common peripheral measure of pores not less than 165 µm, also by the length of the channels 7 on the side of the sleeve 2 attached to the sleeve 2. At the upper end the cross-sectional area of the sleeve 2 and the body and sleeve 2 is set to the head - the area of the tamping face 9 is equal to 5 top surface 6 which are matched and have the same shape, filled with an inclined, with vertical canals, an ice ice-expanding lagging 7, expanding in the lower part, in areas not used for semi-contour, covering all channels 7, of dry granules ice is not available. This has the shape of a regular hexagon. pyramidal protrusions also contribute to this. In this case, the extending portions of the channel Qy 8. The heads 7 5 are located close to each other.

one to the other, and its upper surface 6 In subsequent turns (lowering and

made oblique. Cannula ramming tamper diameter 9 repeats cycle

fishing 6.25-12.125 mm. injection of liquid carbon dioxide into the cavity

Between the channels 7 are made rasse-sleeves 2, the compression of the resulting snow

pyramidal protrusions 8. In the guillotine flat cake, the extrusion of preset 2 is installed with the possibility of moving the pellet into channels 7 and pushing the tamper 9 inside. The sleeve 2 of the molded dense ice grab rammer 9 has a cross section in the channels 7 before they exit channels 7

the shape of a regular hexagonal, and detecting the head 5. Once on the slope of the opening of the sleeve 2 is equal to the peri-nial surface 6 granules of dry ice

the meter of the enclosing head contour 5. do not linger on the surface 6, and the ska-Screen 3 with lining 4 is installed with the tray trapped in the receiver (not measured inside the housing 1 and educated). By making the surface 6 of the gas collecting chamber 10. The sloping pipes 11 for inclined provide good insertion conditions and the pipes 12 for withdrawing liquid for exiting the channels 7 of the next porous and gaseous carbon dioxide and arranging the dry ice granules. This also increases the productivity in the upper and lower sections, respectively, and decreases the parts of the housing 1. the consumption of liquid carbon dioxide.

A device for compacting dry ice granules works as follows. Formed in the cavity of the liner 2. When the rammer 9 is moved from the carbon dioxide top, it creates pressure and an upper boundary line M to the lower boundary 50 through the holes of the liner 2, Fig. 5a) liquid carbon dioxide (CO2) is injected into the cavity of the sleeve 2 through the screened screen 3 and the pores of the cladding 4 into the sleeve 11. At the same time, the pressure in the cavity of the sleeve 2 decreases by 20 g mm, and the liquid carbon dioxide turns into snow flakes. At the lower boundary of carbon dioxide 55, the tamper 9 retains through the nozzle of the 12th line H into the atmosphere (it is possible to re-enter the cylinder with not less than 2 s, while injection of liquid carbon dioxide into the cavity of the sleeve assembly 10). sleeves 2 and to a greater extent this is the case when lifting the tamper 9. Of the gas collection chamber 10 pairs

ra, as well as into the snow tank).

The carbon dioxide vapor formed in the cavity of the liner 2 creates pressure and escapes through the openings of the liner 2, the gas-permeable screen 3 and the pores of the liner 4 into the carbon dioxide released to the atmosphere through the nozzle 12 (again

a collecting chamber 10. This reduces the pressure in the cavity of the sleeve 2 and to a greater extent this takes place when the rammer 9 is lifted. 10 pairs from the gas collecting chamber

The carbon dioxide vapor formed in the cavity of the sleeve 2 creates pressure and exits through the holes of the sleeve 2, the gas-permeable screen 3 and the pores of the lining 4 into the carbonic acid is discharged through the nozzle 12 to the atmosphere (you can again

ra, as well as into the snow tank).

Claims (1)

Invention Formula A device for pressing dry ice granules, comprising a body made of gas-permeable material, a sleeve with perforated walls and a screen rigidly mounted on it and a gas-permeable lining around the latter, placed with a gap inside the body to form a gas collecting chamber, a head with vertical channels expanding at the bottom, the contour covering all the channels has the shape of a regular hexagon; liquid and carbon dioxide gas outlet, located respectively in the upper and lower parts of the body, tamper mounted for movement inside the sleeve, characterized in that, in order to increase the productivity of the process, tamper and sleeve in the cross section have the shape of a regular pentagon, and the perimeter is hole The wiry sleeve is equal to the perimeter of the enclosing contour of the head, with the expanding sections of the head located closely to each other, and the upper surface of the head is inclined. / i-A fie.2 B 6 gjas jigl (fue.S