DE79276C - Suction tube for pneumatic transport equipment - Google Patents

Description

IMPERIAL PATENT OFFICE ^

The present invention is a Innovation in pneumatic transport devices for grain and similar fine-grained ones Substances, which are arranged in a with adjustable air supply, above the Suction nozzle (suction tube) consists of an axially adjustable conaxial jacket.

The purpose of such a mantle is as follows: the lower edge of the same can be in in the axial direction so far from the edge of the mouthpiece that always, as The latter may also be introduced deeply into the grain, a certain layer of grain the direct Entry of the air from the adjustable air duct (the space between the suction pipe and Jacket) into the suction pipe; thereby a correct ratio of sucked in is achieved Air and entrained grain received and, on the one hand, unnecessary expenditure of energy as a result. Excessive air intake, on the other hand blockage of the transport pipe by too strong Ascent of the transported goods avoided. The difference in the height of both edges is determined, with reference to the greatest expediency, by various circumstances, so that the mutual position of the mouthpiece (suction tube) and the jacket multiple changes subject.

In the accompanying drawing, the suction pipe A connected to the flexible transport pipe K is shown immersed in the grain store. The edge b of the jacket B is so much higher than that α of the pipe that a radial line 1-1, which is thought to be drawn through b parallel to the slope of the grain 2-2, the suction pipe A at a more or less far from hits distant points at the lower edge, the grain thus constantly falls below the edge b and opposes the air sucked out of the air ducts. The slope level is different for different types of grain or other goods; For this reason, as well as due to the inconsistent suction strength of the vacuum apparatus and with regard to the height and width to which the material is to be transported, the position of the jacket in relation to the suction pipe must be regulated in every special case. For this purpose, on the upper closed part of the mantle, the mantle head, guide rods b ^{1 are} attached, by means of their screws being adjusted in a collar a ¹ attached to the upper part of the suction tube, the mantle at a greater or lesser distance from the edge a des Pipe is held. Sliding blocks b ² provided on the outer surface of the latter or on the inner surface of the jacket serve to maintain the conaxial position of both.

A regulating device R is provided in the jacket wall near the jacket head; the same consists of a sleeve arranged between parallel rails lying in a radial plane, the window-like openings of which are adjustable against corresponding openings in the casing in such a way that the amount of air sucked through the grain at 6 can thereby be influenced.

Claims (1)

Patent claims:
Suction tube for pneumatic transport apparatus for grain, among other things, characterized in that the jacket (B) reaching over the grain surface is axially adjustable on the tube (A) for the purpose of determining the relative ratio of the in the : ■■ · ■ ξ 't Apparatus sucked air flow to regulate the amount of entrained grain.
An embodiment of the under i. marked suction pipe, in which the axially adjustable jacket B is provided at the upper end with adjustable air inlet openings. For this purpose one sheet of drawings.