SU1211183A1 - Multiposition switch for changing direction of flow of air-conveyed material - Google Patents

Description

: i i (i; r, i4 Hne refers to pneumatic conveying;; ii; iV4iix materials and can be used.,.:: h3 (MuiHO in the building industry l:,; and mo; | OH11 na11 ;, transporting cement, as well as in other areas of the national economy.

Tse, 1 of the invention - - a novelty of the reliability of operation with a chick, an improvement in the degree of GermSTN 1H (K TI.

The lifi drawing shows a multi-way switch and a slit.

11op; the key switch contains a housing, to the core of which the input and atubuck 2 is rigidly fixed, containing a telescopic seal 3, a disk into the flexible membrane 4 with an opening o in which the upper part of the through-pipe is attached K.-i, disk 7 The holes 8, the size of the Mlyi 1 and 110 circle with the center, are combined .4iiii, iM with the center of the disks 4 and 7; in the area 8, the lower part of the outlet nozzles 9 are mounted, the cover is 10 s. ) B; .1m hole 1, hard screen 12, I CjiMeTHHHO attached around the perimeter to the lower part of the membrane 4.

Zt iH operation control switches on the movable part of the inlet pipe 2 are fixed with an arrow 13 with a flag 14, interacting with the position sensor 15, for example, in the form of contactless limit switches. The number of sensors 15 corresponds to the required number, n the positions of the switching element.

The switch works as follows.

Before the beginning of the transportation of the material choose the necessary direction nodachi. To do this, using a drive (not shown) rotate the movable part of the inlet pipe 2 with a rigidly fixed conical body 1, bend

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By means of the membrane 4 and the cover 5 up to the combination of the flag 14 with the corresponding sensor 5 of the position. At the same time, a flexible membrane 4 is installed in the new one, in which the hole 5 with tension 6 coaxially 1 with one of the pipes 9 that correspond to the selected panvlepia trance (). Since it is necessary to condition the material to be piped through pipes, there is excess lava- and gas from the material supply side, when it is transported through a pipe cross section: 110 the valve in case 1 creates an excessive pressure sufficient to overcome the resistance of the pipeline. connected to its outlet pipe 9, as well as to overcome the pressure of the column of material being transported. At the same time in the cavity of the nozzles 9, section-. leinibix from the cavity of the Cornus flexible membrane 4, the pressure is less due to their connection with the external medium. As a result, the flexible membrane 4 is applied to the disk 7 by overpressure in the cavity of the cornea 1, and since the material.1 of the flexible membrane 4 is elastic, it provides contact with the disk 7 throughout the entire area ;; good packing. This creates the necessary tightness of the joint between the cavity of the housing 1 and the outlet nozzle 9. At the same time, the transported medium, formed by the nozzle 6, is fed under its own pressure to the outlet nozzle 9. After the end of transportation, the pressure in the cavity of the cornea 1 drops and is aligned with the pressure. in the cavity of the outlet nozzles 9, the force that presses the flexible membrane 4 to the face 7 disappears, which allows switching the pipelines with the application of a minimum

EFFORTS.

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Claims (1)

MULTI-WAY SWITCH OF THE DIRECTION OF THE FLOW OF PNEUMATICALLY TRANSPORTED MATERIAL, comprising a housing mounted vertically with the possibility of rotation and vertical movement relative to the longitudinal axis. coaxially with the inlet pipe connected to the lower torus of the casing and the bottom ... and. mounted one under the other, the lower of which is rigidly attached to the upper end of the housing and is made with a hole in which the upper part of the passage pipe placed inside the housing is mounted. and the upper one has holes made in a circle with a center aligned with the center of the disks, into which the lower parts of the outlet pipes are rigidly mounted, a cover with a central hole placed above the upper disk, and a mechanism for fixing the position of the housing relative to the outlet pipes, characterized in that, with In order to increase the reliability of work by improving the degree of tightness, the bottom bottom is made in the form of a flexible membrane. the switch is provided with a rigid screen made with a diameter larger than the diameter of the central hole of the cover and installed with a gap relative to the inner walls of the housing, tightly attached around the perimeter to the bottom of the membrane, while the outlet pipes are located in the Central hole of the covers ”, the peripheral portions of which and the membrane rigidly interconnected in the zone of attachment of the latter to the housing, and the upper disk is freely installed between the membrane and the cover, and the passage pipe is in communication with the cavity of the housing .