SU388982A1 - STOPPING DEVICE - Google Patents

Description

one

The invention can find widespread consumption in various areas of the national economy, in particular, in the production of synthetic fibers from caprone crumb resin when it is fed to melting devices.

It is known a shut-off device for hermetically sealing vertical and inclined pipelines filled with bulk material, consisting of a casing, inlet and outlet nozzles, a seat and a conical valve, driven by a rod, sealed in the casing by a gland.

The known device provides a tight overlap of the pipeline only after removal of the bulk material from the cavity of the action of the overlapping element, which leads to an increase in the time required to achieve a tight overlap.

In addition, the known device does not allow a hermetic overlap if particles of material get between the sealing surfaces of the locking device. The impossibility of hermetically sealing the pipeline leads to a deterioration in the quality of the final product in the production of synthetic fiber from the crumb of nylon resin due to the harmful effects on the raw materials surrounding it, its environment (oxygen, moisture, etc.).

In order to quickly and reliably cover

pipeline in one stroke of chlalan in the proposed device above the conical valve installed glass, which has an oblique cut-out in the wall and an inclined bottom, converging in one

lower point that is separated from the conical edge of the valve at half its stroke.

In addition, in the closure device for unhindered mixing of the glass: a cylindrical chamber is fixed above the body

with a diameter corresponding to the diameter of the glass and a height equal to 1.5 valve strokes.

FIG. 1 shows the proposed device, in the “open” position, Hai FIG. 2 is the same at the moment of movement of the conical valve;

in fig. 3 - the same in the “closed” position.

The locking device contains: it body /, outlet 2, oil seal 3 and vertical cylindrical chamber 4 to which inlet 5 is attached. A conical valve 7 with oblique cut in the wall for discharge of bulk material and an inclined bottom are attached to the conical valve 6 from above (shown by dotted line ) for a complete gathering of the material. Conical valve b connected with screw stem

8, a hermetic seal is achieved with the help of the gland 5. Inside the bottom of the body / I1 has a bevel towards the outlet nozzle 2. A saddle 5 is provided in the upper part of the body /.

The device works as follows.

When the conical valve 6 is open, the bulk material passes freely through the salient device. In this case, in the body / bulk material takes the position corresponding to the angle of repose and completely falls asleep conical valve 6.

When the conical valve 6 moves upward to the closed position, the cup 7 enters the vertical cylindrical chamber 4, and at the moment when the intersection point of the oblique cut in the wall of the cup 7 and its inclined bottom enters the vertical cylindrical chamber 4, the material is stopped. If conical Klaian 6 continues to move upwards, even if the bulk material is slowly removed from the housing / through the outlet 2, a free space will form under the conical valve 6, into which the bulk material flows from the upper part of the housing 1, i.e. saddle 9 (Fig. 2).

By the time of approach of the conical valve 6 to the saddle 9, the space between them will be free, which will provide the possibility of tight shut-off of the locking device 3.

In the vertical cylindrical chamber 4, the cup 7 with the material contained therein freely moves. When the locking device is opened, the vertical cylindrical chamber 4 is freed from the bulk material, and the device is ready to pass material from the supply line.

Subject invention

Claims (2)

1. A locking device for hermetically sealing off vertical and inclined pipelines filled with bulk material, consisting of a body :, inlet and outlet nozzles, a seat and a conical valve, driven by a rod, sealed in A housing seal, characterized in that, in order to quickly and reliably close the pipeline in one stroke of the valve, a cup is installed above the conical valve, having an axial recess in the wall and an inclined bottom that converges at one lower point that is separated from the conical edge of the valve half his turn. 2. The device according to claim 1, characterized in that for the unimpeded movement of the glass over the body, a vertically arranged cylindrical chamber with a diameter corresponding to the diameter of the glass and a height of 1.5 valve strokes is reinforced. eight uz.l FIG. 2