SU1320623A1 - Drying bin - Google Patents

Abstract

The invention relates to a drying technique. The purpose of the invention is to increase the uniformity of drying. The diaphragm is made in the form of two truncated cones (K) 8 and 9, with K 9 facing upwards with a large base, and K 8 facing downwards. This embodiment provides the same distribution of internal forces in the moving grain and none of the three streams can slow down the movement of the others. Since the grain dries faster in the inner perforated shell, its speed of movement is higher, which is achieved by varying the length of the generatrix K 9. 1 Cp f-ly, 2 ill. SO y e 35 .N5 (Rig. 2

Description

The invention relates to a device for drying bulk materials.

The purpose of the invention is to increase the uniformity of drying.

Figure 1 schematically shows the proposed dryer, longitudinal section; figure 2 - node G in Fig, 1 (installation of the diaphragm).

The dryer contains outer 1 and inner 2 perforated shells. The inner shell passes into a conical bell 3, into which the air duct 4 enters, the drying agent is supplied to the central air distribution manifold 5. The outer shell passes into a solid conical bottom 6. At the lower edge of the annular chamber 7 formed by the shell s there is a diaphragm consisting of an inner 8 and 9 outer truncated cones, with the outer facing of the large base up, and the inner - down.

The mutual arrangement of the diaphragm cones is such that the vertical projection of the lower edge of the cone 8 passes through the edge of the socket 3, and the cone-forming diaphragms are parallel to the bottom 6 and the socket 3, respectively. The upper edge of the cones divide the distance between the cones of the bottom and the socket in relation to a: t: s 1: 3:: 1 (Fig 2) Vertical projection

The intersection lines forming the outer 9 and inner 8 cones pass through the intersection line of the forming bottoms 6 and the socket 3.

The dryer works as follows.

Grain is poured into the annular chamber 7 between the inner 2 and outer 1 with perforated shells, and a drying agent is fed into the collector 5 through the duct 4. As the grain dries, they begin to flow through the outlet of the conical bottom.

6. Uniform drying is achieved by controlling the speed of movement of the grain using a diaphragm that divides the entire moving volume into three streams: between the cone 9 and the bottom 6, between the cone 8 and the socket 3 and between the cones 8 and 9.

The mutual arrangement of cones B and 9 is such that they ensure the same distribution of internal forces in the moving grain and none of the three flows can slow down the movement of other flows. Since the grain of the inner perforated shell 2 dries faster, its speed must also be higher, which is achieved by varying the length of the generatrix of the cone 9,

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Claims (2)

Invention Formula 1, the dryer-grain predominantly for grain, containing an annular chamber with a conical bottom, limited coaxially with felling outer and inner perforated shells, and a central air distribution manifold, characterized in that, in order to increase the uniformity of drying, the annular chamber at the outlet is equipped a diaphragm in the form of two truncated cones placed one another, the outer of which faces a large base up and inner down 2. Dryer-bins according to claim 1, about t having the fact that a conical socket is attached to the inner shell, the former of which forms parallel to the generator of the inner cone of the diaphragm, and about the outer cone of the diaphragm is parallel to the forming bottom of the diaphragm; the diaphragm is located below the bottom edge shells with the division of the width of the chamber into sections in a ratio of 1: 3: 1. FIG. f